Update from Qt3

90 files changed, 0 insertions, 33892 deletions

diff --git a/src/3rdparty/libjpeg/README b/src/3rdparty/libjpeg/README
deleted file mode 100644
index 86cc20669..000000000
--- a/src/3rdparty/libjpeg/README
+++ /dev/null
@@ -1,385 +0,0 @@
-The Independent JPEG Group's JPEG software
-==========================================
-
-README for release 6b of 27-Mar-1998
-====================================
-
-This distribution contains the sixth public release of the Independent JPEG
-Group's free JPEG software.  You are welcome to redistribute this software and
-to use it for any purpose, subject to the conditions under LEGAL ISSUES, below.
-
-Serious users of this software (particularly those incorporating it into
-larger programs) should contact IJG at jpeg-info@uunet.uu.net to be added to
-our electronic mailing list.  Mailing list members are notified of updates
-and have a chance to participate in technical discussions, etc.
-
-This software is the work of Tom Lane, Philip Gladstone, Jim Boucher,
-Lee Crocker, Julian Minguillon, Luis Ortiz, George Phillips, Davide Rossi,
-Guido Vollbeding, Ge' Weijers, and other members of the Independent JPEG
-Group.
-
-IJG is not affiliated with the official ISO JPEG standards committee.
-
-
-DOCUMENTATION ROADMAP
-=====================
-
-This file contains the following sections:
-
-OVERVIEW            General description of JPEG and the IJG software.
-LEGAL ISSUES        Copyright, lack of warranty, terms of distribution.
-REFERENCES          Where to learn more about JPEG.
-ARCHIVE LOCATIONS   Where to find newer versions of this software.
-RELATED SOFTWARE    Other stuff you should get.
-FILE FORMAT WARS    Software *not* to get.
-TO DO               Plans for future IJG releases.
-
-Other documentation files in the distribution are:
-
-User documentation:
-  install.doc       How to configure and install the IJG software.
-  usage.doc         Usage instructions for cjpeg, djpeg, jpegtran,
-                    rdjpgcom, and wrjpgcom.
-  *.1               Unix-style man pages for programs (same info as usage.doc).
-  wizard.doc        Advanced usage instructions for JPEG wizards only.
-  change.log        Version-to-version change highlights.
-Programmer and internal documentation:
-  libjpeg.doc       How to use the JPEG library in your own programs.
-  example.c         Sample code for calling the JPEG library.
-  structure.doc     Overview of the JPEG library's internal structure.
-  filelist.doc      Road map of IJG files.
-  coderules.doc     Coding style rules --- please read if you contribute code.
-
-Please read at least the files install.doc and usage.doc.  Useful information
-can also be found in the JPEG FAQ (Frequently Asked Questions) article.  See
-ARCHIVE LOCATIONS below to find out where to obtain the FAQ article.
-
-If you want to understand how the JPEG code works, we suggest reading one or
-more of the REFERENCES, then looking at the documentation files (in roughly
-the order listed) before diving into the code.
-
-
-OVERVIEW
-========
-
-This package contains C software to implement JPEG image compression and
-decompression.  JPEG (pronounced "jay-peg") is a standardized compression
-method for full-color and gray-scale images.  JPEG is intended for compressing
-"real-world" scenes; line drawings, cartoons and other non-realistic images
-are not its strong suit.  JPEG is lossy, meaning that the output image is not
-exactly identical to the input image.  Hence you must not use JPEG if you
-have to have identical output bits.  However, on typical photographic images,
-very good compression levels can be obtained with no visible change, and
-remarkably high compression levels are possible if you can tolerate a
-low-quality image.  For more details, see the references, or just experiment
-with various compression settings.
-
-This software implements JPEG baseline, extended-sequential, and progressive
-compression processes.  Provision is made for supporting all variants of these
-processes, although some uncommon parameter settings aren't implemented yet.
-For legal reasons, we are not distributing code for the arithmetic-coding
-variants of JPEG; see LEGAL ISSUES.  We have made no provision for supporting
-the hierarchical or lossless processes defined in the standard.
-
-We provide a set of library routines for reading and writing JPEG image files,
-plus two sample applications "cjpeg" and "djpeg", which use the library to
-perform conversion between JPEG and some other popular image file formats.
-The library is intended to be reused in other applications.
-
-In order to support file conversion and viewing software, we have included
-considerable functionality beyond the bare JPEG coding/decoding capability;
-for example, the color quantization modules are not strictly part of JPEG
-decoding, but they are essential for output to colormapped file formats or
-colormapped displays.  These extra functions can be compiled out of the
-library if not required for a particular application.  We have also included
-"jpegtran", a utility for lossless transcoding between different JPEG
-processes, and "rdjpgcom" and "wrjpgcom", two simple applications for
-inserting and extracting textual comments in JFIF files.
-
-The emphasis in designing this software has been on achieving portability and
-flexibility, while also making it fast enough to be useful.  In particular,
-the software is not intended to be read as a tutorial on JPEG.  (See the
-REFERENCES section for introductory material.)  Rather, it is intended to
-be reliable, portable, industrial-strength code.  We do not claim to have
-achieved that goal in every aspect of the software, but we strive for it.
-
-We welcome the use of this software as a component of commercial products.
-No royalty is required, but we do ask for an acknowledgement in product
-documentation, as described under LEGAL ISSUES.
-
-
-LEGAL ISSUES
-============
-
-In plain English:
-
-1. We don't promise that this software works.  (But if you find any bugs,
-   please let us know!)
-2. You can use this software for whatever you want.  You don't have to pay us.
-3. You may not pretend that you wrote this software.  If you use it in a
-   program, you must acknowledge somewhere in your documentation that
-   you've used the IJG code.
-
-In legalese:
-
-The authors make NO WARRANTY or representation, either express or implied,
-with respect to this software, its quality, accuracy, merchantability, or
-fitness for a particular purpose.  This software is provided "AS IS", and you,
-its user, assume the entire risk as to its quality and accuracy.
-
-This software is copyright (C) 1991-1998, Thomas G. Lane.
-All Rights Reserved except as specified below.
-
-Permission is hereby granted to use, copy, modify, and distribute this
-software (or portions thereof) for any purpose, without fee, subject to these
-conditions:
-(1) If any part of the source code for this software is distributed, then this
-README file must be included, with this copyright and no-warranty notice
-unaltered; and any additions, deletions, or changes to the original files
-must be clearly indicated in accompanying documentation.
-(2) If only executable code is distributed, then the accompanying
-documentation must state that "this software is based in part on the work of
-the Independent JPEG Group".
-(3) Permission for use of this software is granted only if the user accepts
-full responsibility for any undesirable consequences; the authors accept
-NO LIABILITY for damages of any kind.
-
-These conditions apply to any software derived from or based on the IJG code,
-not just to the unmodified library.  If you use our work, you ought to
-acknowledge us.
-
-Permission is NOT granted for the use of any IJG author's name or company name
-in advertising or publicity relating to this software or products derived from
-it.  This software may be referred to only as "the Independent JPEG Group's
-software".
-
-We specifically permit and encourage the use of this software as the basis of
-commercial products, provided that all warranty or liability claims are
-assumed by the product vendor.
-
-
-ansi2knr.c is included in this distribution by permission of L. Peter Deutsch,
-sole proprietor of its copyright holder, Aladdin Enterprises of Menlo Park, CA.
-ansi2knr.c is NOT covered by the above copyright and conditions, but instead
-by the usual distribution terms of the Free Software Foundation; principally,
-that you must include source code if you redistribute it.  (See the file
-ansi2knr.c for full details.)  However, since ansi2knr.c is not needed as part
-of any program generated from the IJG code, this does not limit you more than
-the foregoing paragraphs do.
-
-The Unix configuration script "configure" was produced with GNU Autoconf.
-It is copyright by the Free Software Foundation but is freely distributable.
-The same holds for its supporting scripts (config.guess, config.sub,
-ltconfig, ltmain.sh).  Another support script, install-sh, is copyright
-by M.I.T. but is also freely distributable.
-
-It appears that the arithmetic coding option of the JPEG spec is covered by
-patents owned by IBM, AT&T, and Mitsubishi.  Hence arithmetic coding cannot
-legally be used without obtaining one or more licenses.  For this reason,
-support for arithmetic coding has been removed from the free JPEG software.
-(Since arithmetic coding provides only a marginal gain over the unpatented
-Huffman mode, it is unlikely that very many implementations will support it.)
-So far as we are aware, there are no patent restrictions on the remaining
-code.
-
-The IJG distribution formerly included code to read and write GIF files.
-To avoid entanglement with the Unisys LZW patent, GIF reading support has
-been removed altogether, and the GIF writer has been simplified to produce
-"uncompressed GIFs".  This technique does not use the LZW algorithm; the
-resulting GIF files are larger than usual, but are readable by all standard
-GIF decoders.
-
-We are required to state that
-    "The Graphics Interchange Format(c) is the Copyright property of
-    CompuServe Incorporated.  GIF(sm) is a Service Mark property of
-    CompuServe Incorporated."
-
-
-REFERENCES
-==========
-
-We highly recommend reading one or more of these references before trying to
-understand the innards of the JPEG software.
-
-The best short technical introduction to the JPEG compression algorithm is
-	Wallace, Gregory K.  "The JPEG Still Picture Compression Standard",
-	Communications of the ACM, April 1991 (vol. 34 no. 4), pp. 30-44.
-(Adjacent articles in that issue discuss MPEG motion picture compression,
-applications of JPEG, and related topics.)  If you don't have the CACM issue
-handy, a PostScript file containing a revised version of Wallace's article is
-available at ftp://ftp.uu.net/graphics/jpeg/wallace.ps.gz.  The file (actually
-a preprint for an article that appeared in IEEE Trans. Consumer Electronics)
-omits the sample images that appeared in CACM, but it includes corrections
-and some added material.  Note: the Wallace article is copyright ACM and IEEE,
-and it may not be used for commercial purposes.
-
-A somewhat less technical, more leisurely introduction to JPEG can be found in
-"The Data Compression Book" by Mark Nelson and Jean-loup Gailly, published by
-M&T Books (New York), 2nd ed. 1996, ISBN 1-55851-434-1.  This book provides
-good explanations and example C code for a multitude of compression methods
-including JPEG.  It is an excellent source if you are comfortable reading C
-code but don't know much about data compression in general.  The book's JPEG
-sample code is far from industrial-strength, but when you are ready to look
-at a full implementation, you've got one here...
-
-The best full description of JPEG is the textbook "JPEG Still Image Data
-Compression Standard" by William B. Pennebaker and Joan L. Mitchell, published
-by Van Nostrand Reinhold, 1993, ISBN 0-442-01272-1.  Price US$59.95, 638 pp.
-The book includes the complete text of the ISO JPEG standards (DIS 10918-1
-and draft DIS 10918-2).  This is by far the most complete exposition of JPEG
-in existence, and we highly recommend it.
-
-The JPEG standard itself is not available electronically; you must order a
-paper copy through ISO or ITU.  (Unless you feel a need to own a certified
-official copy, we recommend buying the Pennebaker and Mitchell book instead;
-it's much cheaper and includes a great deal of useful explanatory material.)
-In the USA, copies of the standard may be ordered from ANSI Sales at (212)
-642-4900, or from Global Engineering Documents at (800) 854-7179.  (ANSI
-doesn't take credit card orders, but Global does.)  It's not cheap: as of
-1992, ANSI was charging $95 for Part 1 and $47 for Part 2, plus 7%
-shipping/handling.  The standard is divided into two parts, Part 1 being the
-actual specification, while Part 2 covers compliance testing methods.  Part 1
-is titled "Digital Compression and Coding of Continuous-tone Still Images,
-Part 1: Requirements and guidelines" and has document numbers ISO/IEC IS
-10918-1, ITU-T T.81.  Part 2 is titled "Digital Compression and Coding of
-Continuous-tone Still Images, Part 2: Compliance testing" and has document
-numbers ISO/IEC IS 10918-2, ITU-T T.83.
-
-Some extensions to the original JPEG standard are defined in JPEG Part 3,
-a newer ISO standard numbered ISO/IEC IS 10918-3 and ITU-T T.84.  IJG
-currently does not support any Part 3 extensions.
-
-The JPEG standard does not specify all details of an interchangeable file
-format.  For the omitted details we follow the "JFIF" conventions, revision
-1.02.  A copy of the JFIF spec is available from:
-	Literature Department
-	C-Cube Microsystems, Inc.
-	1778 McCarthy Blvd.
-	Milpitas, CA 95035
-	phone (408) 944-6300,  fax (408) 944-6314
-A PostScript version of this document is available by FTP at
-ftp://ftp.uu.net/graphics/jpeg/jfif.ps.gz.  There is also a plain text
-version at ftp://ftp.uu.net/graphics/jpeg/jfif.txt.gz, but it is missing
-the figures.
-
-The TIFF 6.0 file format specification can be obtained by FTP from
-ftp://ftp.sgi.com/graphics/tiff/TIFF6.ps.gz.  The JPEG incorporation scheme
-found in the TIFF 6.0 spec of 3-June-92 has a number of serious problems.
-IJG does not recommend use of the TIFF 6.0 design (TIFF Compression tag 6).
-Instead, we recommend the JPEG design proposed by TIFF Technical Note #2
-(Compression tag 7).  Copies of this Note can be obtained from ftp.sgi.com or
-from ftp://ftp.uu.net/graphics/jpeg/.  It is expected that the next revision
-of the TIFF spec will replace the 6.0 JPEG design with the Note's design.
-Although IJG's own code does not support TIFF/JPEG, the free libtiff library
-uses our library to implement TIFF/JPEG per the Note.  libtiff is available
-from ftp://ftp.sgi.com/graphics/tiff/.
-
-
-ARCHIVE LOCATIONS
-=================
-
-The "official" archive site for this software is ftp.uu.net (Internet
-address 192.48.96.9).  The most recent released version can always be found
-there in directory graphics/jpeg.  This particular version will be archived
-as ftp://ftp.uu.net/graphics/jpeg/jpegsrc.v6b.tar.gz.  If you don't have
-direct Internet access, UUNET's archives are also available via UUCP; contact
-help@uunet.uu.net for information on retrieving files that way.
-
-Numerous Internet sites maintain copies of the UUNET files.  However, only
-ftp.uu.net is guaranteed to have the latest official version.
-
-You can also obtain this software in DOS-compatible "zip" archive format from
-the SimTel archives (ftp://ftp.simtel.net/pub/simtelnet/msdos/graphics/), or
-on CompuServe in the Graphics Support forum (GO CIS:GRAPHSUP), library 12
-"JPEG Tools".  Again, these versions may sometimes lag behind the ftp.uu.net
-release.
-
-The JPEG FAQ (Frequently Asked Questions) article is a useful source of
-general information about JPEG.  It is updated constantly and therefore is
-not included in this distribution.  The FAQ is posted every two weeks to
-Usenet newsgroups comp.graphics.misc, news.answers, and other groups.
-It is available on the World Wide Web at http://www.faqs.org/faqs/jpeg-faq/
-and other news.answers archive sites, including the official news.answers
-archive at rtfm.mit.edu: ftp://rtfm.mit.edu/pub/usenet/news.answers/jpeg-faq/.
-If you don't have Web or FTP access, send e-mail to mail-server@rtfm.mit.edu
-with body
-	send usenet/news.answers/jpeg-faq/part1
-	send usenet/news.answers/jpeg-faq/part2
-
-
-RELATED SOFTWARE
-================
-
-Numerous viewing and image manipulation programs now support JPEG.  (Quite a
-few of them use this library to do so.)  The JPEG FAQ described above lists
-some of the more popular free and shareware viewers, and tells where to
-obtain them on Internet.
-
-If you are on a Unix machine, we highly recommend Jef Poskanzer's free
-PBMPLUS software, which provides many useful operations on PPM-format image
-files.  In particular, it can convert PPM images to and from a wide range of
-other formats, thus making cjpeg/djpeg considerably more useful.  The latest
-version is distributed by the NetPBM group, and is available from numerous
-sites, notably ftp://wuarchive.wustl.edu/graphics/graphics/packages/NetPBM/.
-Unfortunately PBMPLUS/NETPBM is not nearly as portable as the IJG software is;
-you are likely to have difficulty making it work on any non-Unix machine.
-
-A different free JPEG implementation, written by the PVRG group at Stanford,
-is available from ftp://havefun.stanford.edu/pub/jpeg/.  This program
-is designed for research and experimentation rather than production use;
-it is slower, harder to use, and less portable than the IJG code, but it
-is easier to read and modify.  Also, the PVRG code supports lossless JPEG,
-which we do not.  (On the other hand, it doesn't do progressive JPEG.)
-
-
-FILE FORMAT WARS
-================
-
-Some JPEG programs produce files that are not compatible with our library.
-The root of the problem is that the ISO JPEG committee failed to specify a
-concrete file format.  Some vendors "filled in the blanks" on their own,
-creating proprietary formats that no one else could read.  (For example, none
-of the early commercial JPEG implementations for the Macintosh were able to
-exchange compressed files.)
-
-The file format we have adopted is called JFIF (see REFERENCES).  This format
-has been agreed to by a number of major commercial JPEG vendors, and it has
-become the de facto standard.  JFIF is a minimal or "low end" representation.
-We recommend the use of TIFF/JPEG (TIFF revision 6.0 as modified by TIFF
-Technical Note #2) for "high end" applications that need to record a lot of
-additional data about an image.  TIFF/JPEG is fairly new and not yet widely
-supported, unfortunately.
-
-The upcoming JPEG Part 3 standard defines a file format called SPIFF.
-SPIFF is interoperable with JFIF, in the sense that most JFIF decoders should
-be able to read the most common variant of SPIFF.  SPIFF has some technical
-advantages over JFIF, but its major claim to fame is simply that it is an
-official standard rather than an informal one.  At this point it is unclear
-whether SPIFF will supersede JFIF or whether JFIF will remain the de-facto
-standard.  IJG intends to support SPIFF once the standard is frozen, but we
-have not decided whether it should become our default output format or not.
-(In any case, our decoder will remain capable of reading JFIF indefinitely.)
-
-Various proprietary file formats incorporating JPEG compression also exist.
-We have little or no sympathy for the existence of these formats.  Indeed,
-one of the original reasons for developing this free software was to help
-force convergence on common, open format standards for JPEG files.  Don't
-use a proprietary file format!
-
-
-TO DO
-=====
-
-The major thrust for v7 will probably be improvement of visual quality.
-The current method for scaling the quantization tables is known not to be
-very good at low Q values.  We also intend to investigate block boundary
-smoothing, "poor man's variable quantization", and other means of improving
-quality-vs-file-size performance without sacrificing compatibility.
-
-In future versions, we are considering supporting some of the upcoming JPEG
-Part 3 extensions --- principally, variable quantization and the SPIFF file
-format.
-
-As always, speeding things up is of great interest.
-
-Please send bug reports, offers of help, etc. to jpeg-info@uunet.uu.net.
diff --git a/src/3rdparty/libjpeg/change.log b/src/3rdparty/libjpeg/change.log
deleted file mode 100644
index 74102c0db..000000000
--- a/src/3rdparty/libjpeg/change.log
+++ /dev/null
@@ -1,217 +0,0 @@
-CHANGE LOG for Independent JPEG Group's JPEG software
-
-
-Version 6b  27-Mar-1998
------------------------
-
-jpegtran has new features for lossless image transformations (rotation
-and flipping) as well as "lossless" reduction to grayscale.
-
-jpegtran now copies comments by default; it has a -copy switch to enable
-copying all APPn blocks as well, or to suppress comments.  (Formerly it
-always suppressed comments and APPn blocks.)  jpegtran now also preserves
-JFIF version and resolution information.
-
-New decompressor library feature: COM and APPn markers found in the input
-file can be saved in memory for later use by the application.  (Before,
-you had to code this up yourself with a custom marker processor.)
-
-There is an unused field "void * client_data" now in compress and decompress
-parameter structs; this may be useful in some applications.
-
-JFIF version number information is now saved by the decoder and accepted by
-the encoder.  jpegtran uses this to copy the source file's version number,
-to ensure "jpegtran -copy all" won't create bogus files that contain JFXX
-extensions but claim to be version 1.01.  Applications that generate their
-own JFXX extension markers also (finally) have a supported way to cause the
-encoder to emit JFIF version number 1.02.
-
-djpeg's trace mode reports JFIF 1.02 thumbnail images as such, rather
-than as unknown APP0 markers.
-
-In -verbose mode, djpeg and rdjpgcom will try to print the contents of
-APP12 markers as text.  Some digital cameras store useful text information
-in APP12 markers.
-
-Handling of truncated data streams is more robust: blocks beyond the one in
-which the error occurs will be output as uniform gray, or left unchanged
-if decoding a progressive JPEG.  The appearance no longer depends on the
-Huffman tables being used.
-
-Huffman tables are checked for validity much more carefully than before.
-
-To avoid the Unisys LZW patent, djpeg's GIF output capability has been
-changed to produce "uncompressed GIFs", and cjpeg's GIF input capability
-has been removed altogether.  We're not happy about it either, but there
-seems to be no good alternative.
-
-The configure script now supports building libjpeg as a shared library
-on many flavors of Unix (all the ones that GNU libtool knows how to
-build shared libraries for).  Use "./configure --enable-shared" to
-try this out.
-
-New jconfig file and makefiles for Microsoft Visual C++ and Developer Studio.
-Also, a jconfig file and a build script for Metrowerks CodeWarrior
-on Apple Macintosh.  makefile.dj has been updated for DJGPP v2, and there
-are miscellaneous other minor improvements in the makefiles.
-
-jmemmac.c now knows how to create temporary files following Mac System 7
-conventions.
-
-djpeg's -map switch is now able to read raw-format PPM files reliably.
-
-cjpeg -progressive -restart no longer generates any unnecessary DRI markers.
-
-Multiple calls to jpeg_simple_progression for a single JPEG object
-no longer leak memory.
-
-
-Version 6a  7-Feb-96
---------------------
-
-Library initialization sequence modified to detect version mismatches
-and struct field packing mismatches between library and calling application.
-This change requires applications to be recompiled, but does not require
-any application source code change.
-
-All routine declarations changed to the style "GLOBAL(type) name ...",
-that is, GLOBAL, LOCAL, METHODDEF, EXTERN are now macros taking the
-routine's return type as an argument.  This makes it possible to add
-Microsoft-style linkage keywords to all the routines by changing just
-these macros.  Note that any application code that was using these macros
-will have to be changed.
-
-DCT coefficient quantization tables are now stored in normal array order
-rather than zigzag order.  Application code that calls jpeg_add_quant_table,
-or otherwise manipulates quantization tables directly, will need to be
-changed.  If you need to make such code work with either older or newer
-versions of the library, a test like "#if JPEG_LIB_VERSION >= 61" is
-recommended.
-
-djpeg's trace capability now dumps DQT tables in natural order, not zigzag
-order.  This allows the trace output to be made into a "-qtables" file
-more easily.
-
-New system-dependent memory manager module for use on Apple Macintosh.
-
-Fix bug in cjpeg's -smooth option: last one or two scanlines would be
-duplicates of the prior line unless the image height mod 16 was 1 or 2.
-
-Repair minor problems in VMS, BCC, MC6 makefiles.
-
-New configure script based on latest GNU Autoconf.
-
-Correct the list of include files needed by MetroWerks C for ccommand().
-
-Numerous small documentation updates.
-
-
-Version 6  2-Aug-95
--------------------
-
-Progressive JPEG support: library can read and write full progressive JPEG
-files.  A "buffered image" mode supports incremental decoding for on-the-fly
-display of progressive images.  Simply recompiling an existing IJG-v5-based
-decoder with v6 should allow it to read progressive files, though of course
-without any special progressive display.
-
-New "jpegtran" application performs lossless transcoding between different
-JPEG formats; primarily, it can be used to convert baseline to progressive
-JPEG and vice versa.  In support of jpegtran, the library now allows lossless
-reading and writing of JPEG files as DCT coefficient arrays.  This ability
-may be of use in other applications.
-
-Notes for programmers:
-* We changed jpeg_start_decompress() to be able to suspend; this makes all
-decoding modes available to suspending-input applications.  However,
-existing applications that use suspending input will need to be changed
-to check the return value from jpeg_start_decompress().  You don't need to
-do anything if you don't use a suspending data source.
-* We changed the interface to the virtual array routines: access_virt_array
-routines now take a count of the number of rows to access this time.  The
-last parameter to request_virt_array routines is now interpreted as the
-maximum number of rows that may be accessed at once, but not necessarily
-the height of every access.
-
-
-Version 5b  15-Mar-95
----------------------
-
-Correct bugs with grayscale images having v_samp_factor > 1.
-
-jpeg_write_raw_data() now supports output suspension.
-
-Correct bugs in "configure" script for case of compiling in
-a directory other than the one containing the source files.
-
-Repair bug in jquant1.c: sometimes didn't use as many colors as it could.
-
-Borland C makefile and jconfig file work under either MS-DOS or OS/2.
-
-Miscellaneous improvements to documentation.
-
-
-Version 5a  7-Dec-94
---------------------
-
-Changed color conversion roundoff behavior so that grayscale values are
-represented exactly.  (This causes test image files to change.)
-
-Make ordered dither use 16x16 instead of 4x4 pattern for a small quality
-improvement.
-
-New configure script based on latest GNU Autoconf.
-Fix configure script to handle CFLAGS correctly.
-Rename *.auto files to *.cfg, so that configure script still works if
-file names have been truncated for DOS.
-
-Fix bug in rdbmp.c: didn't allow for extra data between header and image.
-
-Modify rdppm.c/wrppm.c to handle 2-byte raw PPM/PGM formats for 12-bit data.
-
-Fix several bugs in rdrle.c.
-
-NEED_SHORT_EXTERNAL_NAMES option was broken.
-
-Revise jerror.h/jerror.c for more flexibility in message table.
-
-Repair oversight in jmemname.c NO_MKTEMP case: file could be there
-but unreadable.
-
-
-Version 5  24-Sep-94
---------------------
-
-Version 5 represents a nearly complete redesign and rewrite of the IJG
-software.  Major user-visible changes include:
-  * Automatic configuration simplifies installation for most Unix systems.
-  * A range of speed vs. image quality tradeoffs are supported.
-    This includes resizing of an image during decompression: scaling down
-    by a factor of 1/2, 1/4, or 1/8 is handled very efficiently.
-  * New programs rdjpgcom and wrjpgcom allow insertion and extraction
-    of text comments in a JPEG file.
-
-The application programmer's interface to the library has changed completely.
-Notable improvements include:
-  * We have eliminated the use of callback routines for handling the
-    uncompressed image data.  The application now sees the library as a
-    set of routines that it calls to read or write image data on a
-    scanline-by-scanline basis.
-  * The application image data is represented in a conventional interleaved-
-    pixel format, rather than as a separate array for each color channel.
-    This can save a copying step in many programs.
-  * The handling of compressed data has been cleaned up: the application can
-    supply routines to source or sink the compressed data.  It is possible to
-    suspend processing on source/sink buffer overrun, although this is not
-    supported in all operating modes.
-  * All static state has been eliminated from the library, so that multiple
-    instances of compression or decompression can be active concurrently.
-  * JPEG abbreviated datastream formats are supported, ie, quantization and
-    Huffman tables can be stored separately from the image data.
-  * And not only that, but the documentation of the library has improved
-    considerably!
-
-
-The last widely used release before the version 5 rewrite was version 4A of
-18-Feb-93.  Change logs before that point have been discarded, since they
-are not of much interest after the rewrite.
diff --git a/src/3rdparty/libjpeg/coderules.doc b/src/3rdparty/libjpeg/coderules.doc
deleted file mode 100644
index 0ab5d9bd3..000000000
--- a/src/3rdparty/libjpeg/coderules.doc
+++ /dev/null
@@ -1,118 +0,0 @@
-IJG JPEG LIBRARY:  CODING RULES
-
-Copyright (C) 1991-1996, Thomas G. Lane.
-This file is part of the Independent JPEG Group's software.
-For conditions of distribution and use, see the accompanying README file.
-
-
-Since numerous people will be contributing code and bug fixes, it's important
-to establish a common coding style.  The goal of using similar coding styles
-is much more important than the details of just what that style is.
-
-In general we follow the recommendations of "Recommended C Style and Coding
-Standards" revision 6.1 (Cannon et al. as modified by Spencer, Keppel and
-Brader).  This document is available in the IJG FTP archive (see
-jpeg/doc/cstyle.ms.tbl.Z, or cstyle.txt.Z for those without nroff/tbl).
-
-Block comments should be laid out thusly:
-
-/*
- *  Block comments in this style.
- */
-
-We indent statements in K&R style, e.g.,
-	if (test) {
-	  then-part;
-	} else {
-	  else-part;
-	}
-with two spaces per indentation level.  (This indentation convention is
-handled automatically by GNU Emacs and many other text editors.)
-
-Multi-word names should be written in lower case with underscores, e.g.,
-multi_word_name (not multiWordName).  Preprocessor symbols and enum constants
-are similar but upper case (MULTI_WORD_NAME).  Names should be unique within
-the first fifteen characters.  (On some older systems, global names must be
-unique within six characters.  We accommodate this without cluttering the
-source code by using macros to substitute shorter names.)
-
-We use function prototypes everywhere; we rely on automatic source code
-transformation to feed prototype-less C compilers.  Transformation is done
-by the simple and portable tool 'ansi2knr.c' (courtesy of Ghostscript).
-ansi2knr is not very bright, so it imposes a format requirement on function
-declarations: the function name MUST BEGIN IN COLUMN 1.  Thus all functions
-should be written in the following style:
-
-LOCAL(int *)
-function_name (int a, char *b)
-{
-    code...
-}
-
-Note that each function definition must begin with GLOBAL(type), LOCAL(type),
-or METHODDEF(type).  These macros expand to "static type" or just "type" as
-appropriate.  They provide a readable indication of the routine's usage and
-can readily be changed for special needs.  (For instance, special linkage
-keywords can be inserted for use in Windows DLLs.)
-
-ansi2knr does not transform method declarations (function pointers in
-structs).  We handle these with a macro JMETHOD, defined as
-	#ifdef HAVE_PROTOTYPES
-	#define JMETHOD(type,methodname,arglist)  type (*methodname) arglist
-	#else
-	#define JMETHOD(type,methodname,arglist)  type (*methodname) ()
-	#endif
-which is used like this:
-	struct function_pointers {
-	  JMETHOD(void, init_entropy_encoder, (int somearg, jparms *jp));
-	  JMETHOD(void, term_entropy_encoder, (void));
-	};
-Note the set of parentheses surrounding the parameter list.
-
-A similar solution is used for forward and external function declarations
-(see the EXTERN and JPP macros).
-
-If the code is to work on non-ANSI compilers, we cannot rely on a prototype
-declaration to coerce actual parameters into the right types.  Therefore, use
-explicit casts on actual parameters whenever the actual parameter type is not
-identical to the formal parameter.  Beware of implicit conversions to "int".
-
-It seems there are some non-ANSI compilers in which the sizeof() operator
-is defined to return int, yet size_t is defined as long.  Needless to say,
-this is brain-damaged.  Always use the SIZEOF() macro in place of sizeof(),
-so that the result is guaranteed to be of type size_t.
-
-
-The JPEG library is intended to be used within larger programs.  Furthermore,
-we want it to be reentrant so that it can be used by applications that process
-multiple images concurrently.  The following rules support these requirements:
-
-1. Avoid direct use of file I/O, "malloc", error report printouts, etc;
-pass these through the common routines provided.
-
-2. Minimize global namespace pollution.  Functions should be declared static
-wherever possible.  (Note that our method-based calling conventions help this
-a lot: in many modules only the initialization function will ever need to be
-called directly, so only that function need be externally visible.)  All
-global function names should begin with "jpeg_", and should have an
-abbreviated name (unique in the first six characters) substituted by macro
-when NEED_SHORT_EXTERNAL_NAMES is set.
-
-3. Don't use global variables; anything that must be used in another module
-should be in the common data structures.
-
-4. Don't use static variables except for read-only constant tables.  Variables
-that should be private to a module can be placed into private structures (see
-the system architecture document, structure.doc).
-
-5. Source file names should begin with "j" for files that are part of the
-library proper; source files that are not part of the library, such as cjpeg.c
-and djpeg.c, do not begin with "j".  Keep source file names to eight
-characters (plus ".c" or ".h", etc) to make life easy for MS-DOSers.  Keep
-compression and decompression code in separate source files --- some
-applications may want only one half of the library.
-
-Note: these rules (particularly #4) are not followed religiously in the
-modules that are used in cjpeg/djpeg but are not part of the JPEG library
-proper.  Those modules are not really intended to be used in other
-applications.
diff --git a/src/3rdparty/libjpeg/filelist.doc b/src/3rdparty/libjpeg/filelist.doc
deleted file mode 100644
index e14982ca5..000000000
--- a/src/3rdparty/libjpeg/filelist.doc
+++ /dev/null
@@ -1,210 +0,0 @@
-IJG JPEG LIBRARY:  FILE LIST
-
-Copyright (C) 1994-1998, Thomas G. Lane.
-This file is part of the Independent JPEG Group's software.
-For conditions of distribution and use, see the accompanying README file.
-
-
-Here is a road map to the files in the IJG JPEG distribution.  The
-distribution includes the JPEG library proper, plus two application
-programs ("cjpeg" and "djpeg") which use the library to convert JPEG
-files to and from some other popular image formats.  A third application
-"jpegtran" uses the library to do lossless conversion between different
-variants of JPEG.  There are also two stand-alone applications,
-"rdjpgcom" and "wrjpgcom".
-
-
-THE JPEG LIBRARY
-================
-
-Include files:
-
-jpeglib.h	JPEG library's exported data and function declarations.
-jconfig.h	Configuration declarations.  Note: this file is not present
-		in the distribution; it is generated during installation.
-jmorecfg.h	Additional configuration declarations; need not be changed
-		for a standard installation.
-jerror.h	Declares JPEG library's error and trace message codes.
-jinclude.h	Central include file used by all IJG .c files to reference
-		system include files.
-jpegint.h	JPEG library's internal data structures.
-jchuff.h	Private declarations for Huffman encoder modules.
-jdhuff.h	Private declarations for Huffman decoder modules.
-jdct.h		Private declarations for forward & reverse DCT subsystems.
-jmemsys.h	Private declarations for memory management subsystem.
-jversion.h	Version information.
-
-Applications using the library should include jpeglib.h (which in turn
-includes jconfig.h and jmorecfg.h).  Optionally, jerror.h may be included
-if the application needs to reference individual JPEG error codes.  The
-other include files are intended for internal use and would not normally
-be included by an application program.  (cjpeg/djpeg/etc do use jinclude.h,
-since its function is to improve portability of the whole IJG distribution.
-Most other applications will directly include the system include files they
-want, and hence won't need jinclude.h.)
-
-
-C source code files:
-
-These files contain most of the functions intended to be called directly by
-an application program:
-
-jcapimin.c	Application program interface: core routines for compression.
-jcapistd.c	Application program interface: standard compression.
-jdapimin.c	Application program interface: core routines for decompression.
-jdapistd.c	Application program interface: standard decompression.
-jcomapi.c	Application program interface routines common to compression
-		and decompression.
-jcparam.c	Compression parameter setting helper routines.
-jctrans.c	API and library routines for transcoding compression.
-jdtrans.c	API and library routines for transcoding decompression.
-
-Compression side of the library:
-
-jcinit.c	Initialization: determines which other modules to use.
-jcmaster.c	Master control: setup and inter-pass sequencing logic.
-jcmainct.c	Main buffer controller (preprocessor => JPEG compressor).
-jcprepct.c	Preprocessor buffer controller.
-jccoefct.c	Buffer controller for DCT coefficient buffer.
-jccolor.c	Color space conversion.
-jcsample.c	Downsampling.
-jcdctmgr.c	DCT manager (DCT implementation selection & control).
-jfdctint.c	Forward DCT using slow-but-accurate integer method.
-jfdctfst.c	Forward DCT using faster, less accurate integer method.
-jfdctflt.c	Forward DCT using floating-point arithmetic.
-jchuff.c	Huffman entropy coding for sequential JPEG.
-jcphuff.c	Huffman entropy coding for progressive JPEG.
-jcmarker.c	JPEG marker writing.
-jdatadst.c	Data destination manager for stdio output.
-
-Decompression side of the library:
-
-jdmaster.c	Master control: determines which other modules to use.
-jdinput.c	Input controller: controls input processing modules.
-jdmainct.c	Main buffer controller (JPEG decompressor => postprocessor).
-jdcoefct.c	Buffer controller for DCT coefficient buffer.
-jdpostct.c	Postprocessor buffer controller.
-jdmarker.c	JPEG marker reading.
-jdhuff.c	Huffman entropy decoding for sequential JPEG.
-jdphuff.c	Huffman entropy decoding for progressive JPEG.
-jddctmgr.c	IDCT manager (IDCT implementation selection & control).
-jidctint.c	Inverse DCT using slow-but-accurate integer method.
-jidctfst.c	Inverse DCT using faster, less accurate integer method.
-jidctflt.c	Inverse DCT using floating-point arithmetic.
-jidctred.c	Inverse DCTs with reduced-size outputs.
-jdsample.c	Upsampling.
-jdcolor.c	Color space conversion.
-jdmerge.c	Merged upsampling/color conversion (faster, lower quality).
-jquant1.c	One-pass color quantization using a fixed-spacing colormap.
-jquant2.c	Two-pass color quantization using a custom-generated colormap.
-		Also handles one-pass quantization to an externally given map.
-jdatasrc.c	Data source manager for stdio input.
-
-Support files for both compression and decompression:
-
-jerror.c	Standard error handling routines (application replaceable).
-jmemmgr.c	System-independent (more or less) memory management code.
-jutils.c	Miscellaneous utility routines.
-
-jmemmgr.c relies on a system-dependent memory management module.  The IJG
-distribution includes the following implementations of the system-dependent
-module:
-
-jmemnobs.c	"No backing store": assumes adequate virtual memory exists.
-jmemansi.c	Makes temporary files with ANSI-standard routine tmpfile().
-jmemname.c	Makes temporary files with program-generated file names.
-jmemdos.c	Custom implementation for MS-DOS (16-bit environment only):
-		can use extended and expanded memory as well as temp files.
-jmemmac.c	Custom implementation for Apple Macintosh.
-
-Exactly one of the system-dependent modules should be configured into an
-installed JPEG library (see install.doc for hints about which one to use).
-On unusual systems you may find it worthwhile to make a special
-system-dependent memory manager.
-
-
-Non-C source code files:
-
-jmemdosa.asm	80x86 assembly code support for jmemdos.c; used only in
-		MS-DOS-specific configurations of the JPEG library.
-
-
-CJPEG/DJPEG/JPEGTRAN
-====================
-
-Include files:
-
-cdjpeg.h	Declarations shared by cjpeg/djpeg/jpegtran modules.
-cderror.h	Additional error and trace message codes for cjpeg et al.
-transupp.h	Declarations for jpegtran support routines in transupp.c.
-
-C source code files:
-
-cjpeg.c		Main program for cjpeg.
-djpeg.c		Main program for djpeg.
-jpegtran.c	Main program for jpegtran.
-cdjpeg.c	Utility routines used by all three programs.
-rdcolmap.c	Code to read a colormap file for djpeg's "-map" switch.
-rdswitch.c	Code to process some of cjpeg's more complex switches.
-		Also used by jpegtran.
-transupp.c	Support code for jpegtran: lossless image manipulations.
-
-Image file reader modules for cjpeg:
-
-rdbmp.c		BMP file input.
-rdgif.c		GIF file input (now just a stub).
-rdppm.c		PPM/PGM file input.
-rdrle.c		Utah RLE file input.
-rdtarga.c	Targa file input.
-
-Image file writer modules for djpeg:
-
-wrbmp.c		BMP file output.
-wrgif.c		GIF file output (a mere shadow of its former self).
-wrppm.c		PPM/PGM file output.
-wrrle.c		Utah RLE file output.
-wrtarga.c	Targa file output.
-
-
-RDJPGCOM/WRJPGCOM
-=================
-
-C source code files:
-
-rdjpgcom.c	Stand-alone rdjpgcom application.
-wrjpgcom.c	Stand-alone wrjpgcom application.
-
-These programs do not depend on the IJG library.  They do use
-jconfig.h and jinclude.h, only to improve portability.
-
-
-ADDITIONAL FILES
-================
-
-Documentation (see README for a guide to the documentation files):
-
-README		Master documentation file.
-*.doc		Other documentation files.
-*.1		Documentation in Unix man page format.
-change.log	Version-to-version change highlights.
-example.c	Sample code for calling JPEG library.
-
-Configuration/installation files and programs (see install.doc for more info):
-
-configure	Unix shell script to perform automatic configuration.
-ltconfig	Support scripts for configure (from GNU libtool).
-ltmain.sh
-config.guess
-config.sub
-install-sh	Install shell script for those Unix systems lacking one.
-ckconfig.c	Program to generate jconfig.h on non-Unix systems.
-jconfig.doc	Template for making jconfig.h by hand.
-makefile.*	Sample makefiles for particular systems.
-jconfig.*	Sample jconfig.h for particular systems.
-ansi2knr.c	De-ANSIfier for pre-ANSI C compilers (courtesy of
-		L. Peter Deutsch and Aladdin Enterprises).
-
-Test files (see install.doc for test procedure):
-
-test*.*		Source and comparison files for confidence test.
-		These are binary image files, NOT text files.
diff --git a/src/3rdparty/libjpeg/install.doc b/src/3rdparty/libjpeg/install.doc
deleted file mode 100644
index ce5d5b659..000000000
--- a/src/3rdparty/libjpeg/install.doc
+++ /dev/null
@@ -1,1063 +0,0 @@
-INSTALLATION INSTRUCTIONS for the Independent JPEG Group's JPEG software
-
-Copyright (C) 1991-1998, Thomas G. Lane.
-This file is part of the Independent JPEG Group's software.
-For conditions of distribution and use, see the accompanying README file.
-
-
-This file explains how to configure and install the IJG software.  We have
-tried to make this software extremely portable and flexible, so that it can be
-adapted to almost any environment.  The downside of this decision is that the
-installation process is complicated.  We have provided shortcuts to simplify
-the task on common systems.  But in any case, you will need at least a little
-familiarity with C programming and program build procedures for your system.
-
-If you are only using this software as part of a larger program, the larger
-program's installation procedure may take care of configuring the IJG code.
-For example, Ghostscript's installation script will configure the IJG code.
-You don't need to read this file if you just want to compile Ghostscript.
-
-If you are on a Unix machine, you may not need to read this file at all.
-Try doing
-	./configure
-	make
-	make test
-If that doesn't complain, do
-	make install
-(better do "make -n install" first to see if the makefile will put the files
-where you want them).  Read further if you run into snags or want to customize
-the code for your system.
-
-
-TABLE OF CONTENTS
------------------
-
-Before you start
-Configuring the software:
-	using the automatic "configure" script
-	using one of the supplied jconfig and makefile files
-	by hand
-Building the software
-Testing the software
-Installing the software
-Optional stuff
-Optimization
-Hints for specific systems
-
-
-BEFORE YOU START
-================
-
-Before installing the software you must unpack the distributed source code.
-Since you are reading this file, you have probably already succeeded in this
-task.  However, there is a potential for error if you needed to convert the
-files to the local standard text file format (for example, if you are on
-MS-DOS you may have converted LF end-of-line to CR/LF).  You must apply
-such conversion to all the files EXCEPT those whose names begin with "test".
-The test files contain binary data; if you change them in any way then the
-self-test will give bad results.
-
-Please check the last section of this file to see if there are hints for the
-specific machine or compiler you are using.
-
-
-CONFIGURING THE SOFTWARE
-========================
-
-To configure the IJG code for your system, you need to create two files:
-  * jconfig.h: contains values for system-dependent #define symbols.
-  * Makefile: controls the compilation process.
-(On a non-Unix machine, you may create "project files" or some other
-substitute for a Makefile.  jconfig.h is needed in any environment.)
-
-We provide three different ways to generate these files:
-  * On a Unix system, you can just run the "configure" script.
-  * We provide sample jconfig files and makefiles for popular machines;
-    if your machine matches one of the samples, just copy the right sample
-    files to jconfig.h and Makefile.
-  * If all else fails, read the instructions below and make your own files.
-
-
-Configuring the software using the automatic "configure" script
----------------------------------------------------------------
-
-If you are on a Unix machine, you can just type
-	./configure
-and let the configure script construct appropriate configuration files.
-If you're using "csh" on an old version of System V, you might need to type
-	sh configure
-instead to prevent csh from trying to execute configure itself.
-Expect configure to run for a few minutes, particularly on slower machines;
-it works by compiling a series of test programs.
-
-Configure was created with GNU Autoconf and it follows the usual conventions
-for GNU configure scripts.  It makes a few assumptions that you may want to
-override.  You can do this by providing optional switches to configure:
-
-* If you want to build libjpeg as a shared library, say
-	./configure --enable-shared
-To get both shared and static libraries, say
-	./configure --enable-shared --enable-static
-Note that these switches invoke GNU libtool to take care of system-dependent
-shared library building methods.  If things don't work this way, please try
-running configure without either switch; that should build a static library
-without using libtool.  If that works, your problem is probably with libtool
-not with the IJG code.  libtool is fairly new and doesn't support all flavors
-of Unix yet.  (You might be able to find a newer version of libtool than the
-one included with libjpeg; see ftp.gnu.org.  Report libtool problems to
-bug-libtool@gnu.org.)
-
-* Configure will use gcc (GNU C compiler) if it's available, otherwise cc.
-To force a particular compiler to be selected, use the CC option, for example
-	./configure CC='cc'
-The same method can be used to include any unusual compiler switches.
-For example, on HP-UX you probably want to say
-	./configure CC='cc -Aa'
-to get HP's compiler to run in ANSI mode.
-
-* The default CFLAGS setting is "-O" for non-gcc compilers, "-O2" for gcc.
-You can override this by saying, for example,
-	./configure CFLAGS='-g'
-if you want to compile with debugging support.
-
-* Configure will set up the makefile so that "make install" will install files
-into /usr/local/bin, /usr/local/man, etc.  You can specify an installation
-prefix other than "/usr/local" by giving configure the option "--prefix=PATH".
-
-* If you don't have a lot of swap space, you may need to enable the IJG
-software's internal virtual memory mechanism.  To do this, give the option
-"--enable-maxmem=N" where N is the default maxmemory limit in megabytes.
-This is discussed in more detail under "Selecting a memory manager", below.
-You probably don't need to worry about this on reasonably-sized Unix machines,
-unless you plan to process very large images.
-
-Configure has some other features that are useful if you are cross-compiling
-or working in a network of multiple machine types; but if you need those
-features, you probably already know how to use them.
-
-
-Configuring the software using one of the supplied jconfig and makefile files
------------------------------------------------------------------------------
-
-If you have one of these systems, you can just use the provided configuration
-files:
-
-Makefile	jconfig file	System and/or compiler
-
-makefile.manx	jconfig.manx	Amiga, Manx Aztec C
-makefile.sas	jconfig.sas	Amiga, SAS C
-makeproj.mac	jconfig.mac	Apple Macintosh, Metrowerks CodeWarrior
-mak*jpeg.st	jconfig.st	Atari ST/STE/TT, Pure C or Turbo C
-makefile.bcc	jconfig.bcc	MS-DOS or OS/2, Borland C
-makefile.dj	jconfig.dj	MS-DOS, DJGPP (Delorie's port of GNU C)
-makefile.mc6	jconfig.mc6	MS-DOS, Microsoft C (16-bit only)
-makefile.wat	jconfig.wat	MS-DOS, OS/2, or Windows NT, Watcom C
-makefile.vc	jconfig.vc	Windows NT/95, MS Visual C++
-make*.ds	jconfig.vc	Windows NT/95, MS Developer Studio
-makefile.mms	jconfig.vms	Digital VMS, with MMS software
-makefile.vms	jconfig.vms	Digital VMS, without MMS software
-
-Copy the proper jconfig file to jconfig.h and the makefile to Makefile (or
-whatever your system uses as the standard makefile name).  For more info see
-the appropriate system-specific hints section near the end of this file.
-
-
-Configuring the software by hand
---------------------------------
-
-First, generate a jconfig.h file.  If you are moderately familiar with C,
-the comments in jconfig.doc should be enough information to do this; just
-copy jconfig.doc to jconfig.h and edit it appropriately.  Otherwise, you may
-prefer to use the ckconfig.c program.  You will need to compile and execute
-ckconfig.c by hand --- we hope you know at least enough to do that.
-ckconfig.c may not compile the first try (in fact, the whole idea is for it
-to fail if anything is going to).  If you get compile errors, fix them by
-editing ckconfig.c according to the directions given in ckconfig.c.  Once
-you get it to run, it will write a suitable jconfig.h file, and will also
-print out some advice about which makefile to use.
-
-You may also want to look at the canned jconfig files, if there is one for a
-system similar to yours.
-
-Second, select a makefile and copy it to Makefile (or whatever your system
-uses as the standard makefile name).  The most generic makefiles we provide
-are
-	makefile.ansi:	if your C compiler supports function prototypes
-	makefile.unix:	if not.
-(You have function prototypes if ckconfig.c put "#define HAVE_PROTOTYPES"
-in jconfig.h.)  You may want to start from one of the other makefiles if
-there is one for a system similar to yours.
-
-Look over the selected Makefile and adjust options as needed.  In particular
-you may want to change the CC and CFLAGS definitions.  For instance, if you
-are using GCC, set CC=gcc.  If you had to use any compiler switches to get
-ckconfig.c to work, make sure the same switches are in CFLAGS.
-
-If you are on a system that doesn't use makefiles, you'll need to set up
-project files (or whatever you do use) to compile all the source files and
-link them into executable files cjpeg, djpeg, jpegtran, rdjpgcom, and wrjpgcom.
-See the file lists in any of the makefiles to find out which files go into
-each program.  Note that the provided makefiles all make a "library" file
-libjpeg first, but you don't have to do that if you don't want to; the file
-lists identify which source files are actually needed for compression,
-decompression, or both.  As a last resort, you can make a batch script that
-just compiles everything and links it all together; makefile.vms is an example
-of this (it's for VMS systems that have no make-like utility).
-
-Here are comments about some specific configuration decisions you'll
-need to make:
-
-Command line style
-------------------
-
-These programs can use a Unix-like command line style which supports
-redirection and piping, like this:
-	cjpeg inputfile >outputfile
-	cjpeg <inputfile >outputfile
-	source program | cjpeg >outputfile
-The simpler "two file" command line style is just
-	cjpeg inputfile outputfile
-You may prefer the two-file style, particularly if you don't have pipes.
-
-You MUST use two-file style on any system that doesn't cope well with binary
-data fed through stdin/stdout; this is true for some MS-DOS compilers, for
-example.  If you're not on a Unix system, it's safest to assume you need
-two-file style.  (But if your compiler provides either the Posix-standard
-fdopen() library routine or a Microsoft-compatible setmode() routine, you
-can safely use the Unix command line style, by defining USE_FDOPEN or
-USE_SETMODE respectively.)
-
-To use the two-file style, make jconfig.h say "#define TWO_FILE_COMMANDLINE".
-
-Selecting a memory manager
---------------------------
-
-The IJG code is capable of working on images that are too big to fit in main
-memory; data is swapped out to temporary files as necessary.  However, the
-code to do this is rather system-dependent.  We provide five different
-memory managers:
-
-* jmemansi.c	This version uses the ANSI-standard library routine tmpfile(),
-		which not all non-ANSI systems have.  On some systems
-		tmpfile() may put the temporary file in a non-optimal
-		location; if you don't like what it does, use jmemname.c.
-
-* jmemname.c	This version creates named temporary files.  For anything
-		except a Unix machine, you'll need to configure the
-		select_file_name() routine appropriately; see the comments
-		near the head of jmemname.c.  If you use this version, define
-		NEED_SIGNAL_CATCHER in jconfig.h to make sure the temp files
-		are removed if the program is aborted.
-
-* jmemnobs.c	(That stands for No Backing Store :-).)  This will compile on
-		almost any system, but it assumes you have enough main memory
-		or virtual memory to hold the biggest images you work with.
-
-* jmemdos.c	This should be used with most 16-bit MS-DOS compilers.
-		See the system-specific notes about MS-DOS for more info.
-		IMPORTANT: if you use this, define USE_MSDOS_MEMMGR in
-		jconfig.h, and include the assembly file jmemdosa.asm in the
-		programs.  The supplied makefiles and jconfig files for
-		16-bit MS-DOS compilers already do both.
-
-* jmemmac.c	Custom version for Apple Macintosh; see the system-specific
-		notes for Macintosh for more info.
-
-To use a particular memory manager, change the SYSDEPMEM variable in your
-makefile to equal the corresponding object file name (for example, jmemansi.o
-or jmemansi.obj for jmemansi.c).
-
-If you have plenty of (real or virtual) main memory, just use jmemnobs.c.
-"Plenty" means about ten bytes for every pixel in the largest images
-you plan to process, so a lot of systems don't meet this criterion.
-If yours doesn't, try jmemansi.c first.  If that doesn't compile, you'll have
-to use jmemname.c; be sure to adjust select_file_name() for local conditions.
-You may also need to change unlink() to remove() in close_backing_store().
-
-Except with jmemnobs.c or jmemmac.c, you need to adjust the DEFAULT_MAX_MEM
-setting to a reasonable value for your system (either by adding a #define for
-DEFAULT_MAX_MEM to jconfig.h, or by adding a -D switch to the Makefile).
-This value limits the amount of data space the program will attempt to
-allocate.  Code and static data space isn't counted, so the actual memory
-needs for cjpeg or djpeg are typically 100 to 150Kb more than the max-memory
-setting.  Larger max-memory settings reduce the amount of I/O needed to
-process a large image, but too large a value can result in "insufficient
-memory" failures.  On most Unix machines (and other systems with virtual
-memory), just set DEFAULT_MAX_MEM to several million and forget it.  At the
-other end of the spectrum, for MS-DOS machines you probably can't go much
-above 300K to 400K.  (On MS-DOS the value refers to conventional memory only.
-Extended/expanded memory is handled separately by jmemdos.c.)
-
-
-BUILDING THE SOFTWARE
-=====================
-
-Now you should be able to compile the software.  Just say "make" (or
-whatever's necessary to start the compilation).  Have a cup of coffee.
-
-Here are some things that could go wrong:
-
-If your compiler complains about undefined structures, you should be able to
-shut it up by putting "#define INCOMPLETE_TYPES_BROKEN" in jconfig.h.
-
-If you have trouble with missing system include files or inclusion of the
-wrong ones, read jinclude.h.  This shouldn't happen if you used configure
-or ckconfig.c to set up jconfig.h.
-
-There are a fair number of routines that do not use all of their parameters;
-some compilers will issue warnings about this, which you can ignore.  There
-are also a few configuration checks that may give "unreachable code" warnings.
-Any other warning deserves investigation.
-
-If you don't have a getenv() library routine, define NO_GETENV.
-
-Also see the system-specific hints, below.
-
-
-TESTING THE SOFTWARE
-====================
-
-As a tquick test of functionality we've included a small sample image in
-several forms:
-	testorig.jpg	Starting point for the djpeg tests.
-	testimg.ppm	The output of djpeg testorig.jpg
-	testimg.bmp	The output of djpeg -bmp -colors 256 testorig.jpg
-	testimg.jpg	The output of cjpeg testimg.ppm
-	testprog.jpg	Progressive-mode equivalent of testorig.jpg.
-	testimgp.jpg	The output of cjpeg -progressive -optimize testimg.ppm
-(The first- and second-generation .jpg files aren't identical since JPEG is
-lossy.)  If you can generate duplicates of the testimg* files then you
-probably have working programs.
-
-With most of the makefiles, "make test" will perform the necessary
-comparisons.
-
-If you're using a makefile that doesn't provide the test option, run djpeg
-and cjpeg by hand and compare the output files to testimg* with whatever
-binary file comparison tool you have.  The files should be bit-for-bit
-identical.
-
-If the programs complain "MAX_ALLOC_CHUNK is wrong, please fix", then you
-need to reduce MAX_ALLOC_CHUNK to a value that fits in type size_t.
-Try adding "#define MAX_ALLOC_CHUNK 65520L" to jconfig.h.  A less likely
-configuration error is "ALIGN_TYPE is wrong, please fix": defining ALIGN_TYPE
-as long should take care of that one.
-
-If the cjpeg test run fails with "Missing Huffman code table entry", it's a
-good bet that you needed to define RIGHT_SHIFT_IS_UNSIGNED.  Go back to the
-configuration step and run ckconfig.c.  (This is a good plan for any other
-test failure, too.)
-
-If you are using Unix (one-file) command line style on a non-Unix system,
-it's a good idea to check that binary I/O through stdin/stdout actually
-works.  You should get the same results from "djpeg <testorig.jpg >out.ppm"
-as from "djpeg -outfile out.ppm testorig.jpg".  Note that the makefiles all
-use the latter style and therefore do not exercise stdin/stdout!  If this
-check fails, try recompiling with USE_SETMODE or USE_FDOPEN defined.
-If it still doesn't work, better use two-file style.
-
-If you chose a memory manager other than jmemnobs.c, you should test that
-temporary-file usage works.  Try "djpeg -bmp -colors 256 -max 0 testorig.jpg"
-and make sure its output matches testimg.bmp.  If you have any really large
-images handy, try compressing them with -optimize and/or decompressing with
--colors 256 to make sure your DEFAULT_MAX_MEM setting is not too large.
-
-NOTE: this is far from an exhaustive test of the JPEG software; some modules,
-such as 1-pass color quantization, are not exercised at all.  It's just a
-tquick test to give you some confidence that you haven't missed something
-major.
-
-
-INSTALLING THE SOFTWARE
-=======================
-
-Once you're done with the above steps, you can install the software by
-copying the executable files (cjpeg, djpeg, jpegtran, rdjpgcom, and wrjpgcom)
-to wherever you normally install programs.  On Unix systems, you'll also want
-to put the man pages (cjpeg.1, djpeg.1, jpegtran.1, rdjpgcom.1, wrjpgcom.1)
-in the man-page directory.  The pre-fab makefiles don't support this step
-since there's such a wide variety of installation procedures on different
-systems.
-
-If you generated a Makefile with the "configure" script, you can just say
-	make install
-to install the programs and their man pages into the standard places.
-(You'll probably need to be root to do this.)  We recommend first saying
-	make -n install
-to see where configure thought the files should go.  You may need to edit
-the Makefile, particularly if your system's conventions for man page
-filenames don't match what configure expects.
-
-If you want to install the IJG library itself, for use in compiling other
-programs besides ours, then you need to put the four include files
-	jpeglib.h jerror.h jconfig.h jmorecfg.h
-into your include-file directory, and put the library file libjpeg.a
-(extension may vary depending on system) wherever library files go.
-If you generated a Makefile with "configure", it will do what it thinks
-is the right thing if you say
-	make install-lib
-
-
-OPTIONAL STUFF
-==============
-
-Progress monitor:
-
-If you like, you can #define PROGRESS_REPORT (in jconfig.h) to enable display
-of percent-done progress reports.  The routine provided in cdjpeg.c merely
-prints percentages to stderr, but you can customize it to do something
-fancier.
-
-Utah RLE file format support:
-
-We distribute the software with support for RLE image files (Utah Raster
-Toolkit format) disabled, because the RLE support won't compile without the
-Utah library.  If you have URT version 3.1 or later, you can enable RLE
-support as follows:
-	1.  #define RLE_SUPPORTED in jconfig.h.
-	2.  Add a -I option to CFLAGS in the Makefile for the directory
-	    containing the URT .h files (typically the "include"
-	    subdirectory of the URT distribution).
-	3.  Add -L... -lrle to LDLIBS in the Makefile, where ... specifies
-	    the directory containing the URT "librle.a" file (typically the
-	    "lib" subdirectory of the URT distribution).
-
-Support for 12-bit-deep pixel data:
-
-The JPEG standard allows either 8-bit or 12-bit data precision.  (For color,
-this means 8 or 12 bits per channel, of course.)  If you need to work with
-deeper than 8-bit data, you can compile the IJG code for 12-bit operation.
-To do so:
-  1. In jmorecfg.h, define BITS_IN_JSAMPLE as 12 rather than 8.
-  2. In jconfig.h, undefine BMP_SUPPORTED, RLE_SUPPORTED, and TARGA_SUPPORTED,
-     because the code for those formats doesn't handle 12-bit data and won't
-     even compile.  (The PPM code does work, as explained below.  The GIF
-     code works too; it scales 8-bit GIF data to and from 12-bit depth
-     automatically.)
-  3. Compile.  Don't expect "make test" to pass, since the supplied test
-     files are for 8-bit data.
-
-Currently, 12-bit support does not work on 16-bit-int machines.
-
-Note that a 12-bit version will not read 8-bit JPEG files, nor vice versa;
-so you'll want to keep around a regular 8-bit compilation as well.
-(Run-time selection of data depth, to allow a single copy that does both,
-is possible but would probably slow things down considerably; it's very low
-on our to-do list.)
-
-The PPM reader (rdppm.c) can read 12-bit data from either text-format or
-binary-format PPM and PGM files.  Binary-format PPM/PGM files which have a
-maxval greater than 255 are assumed to use 2 bytes per sample, LSB first
-(little-endian order).  As of early 1995, 2-byte binary format is not
-officially supported by the PBMPLUS library, but it is expected that a
-future release of PBMPLUS will support it.  Note that the PPM reader will
-read files of any maxval regardless of the BITS_IN_JSAMPLE setting; incoming
-data is automatically rescaled to either maxval=255 or maxval=4095 as
-appropriate for the cjpeg bit depth.
-
-The PPM writer (wrppm.c) will normally write 2-byte binary PPM or PGM
-format, maxval 4095, when compiled with BITS_IN_JSAMPLE=12.  Since this
-format is not yet widely supported, you can disable it by compiling wrppm.c
-with PPM_NORAWWORD defined; then the data is scaled down to 8 bits to make a
-standard 1-byte/sample PPM or PGM file.  (Yes, this means still another copy
-of djpeg to keep around.  But hopefully you won't need it for very long.
-Poskanzer's supposed to get that new PBMPLUS release out Real Soon Now.)
-
-Of course, if you are working with 12-bit data, you probably have it stored
-in some other, nonstandard format.  In that case you'll probably want to
-write your own I/O modules to read and write your format.
-
-Note that a 12-bit version of cjpeg always runs in "-optimize" mode, in
-order to generate valid Huffman tables.  This is necessary because our
-default Huffman tables only cover 8-bit data.
-
-Removing code:
-
-If you need to make a smaller version of the JPEG software, some optional
-functions can be removed at compile time.  See the xxx_SUPPORTED #defines in
-jconfig.h and jmorecfg.h.  If at all possible, we recommend that you leave in
-decoder support for all valid JPEG files, to ensure that you can read anyone's
-output.  Taking out support for image file formats that you don't use is the
-most painless way to make the programs smaller.  Another possibility is to
-remove some of the DCT methods: in particular, the "IFAST" method may not be
-enough faster than the others to be worth keeping on your machine.  (If you
-do remove ISLOW or IFAST, be sure to redefine JDCT_DEFAULT or JDCT_FASTEST
-to a supported method, by adding a #define in jconfig.h.)
-
-
-OPTIMIZATION
-============
-
-Unless you own a Cray, you'll probably be interested in making the JPEG
-software go as fast as possible.  This section covers some machine-dependent
-optimizations you may want to try.  We suggest that before trying any of
-this, you first get the basic installation to pass the self-test step.
-Repeat the self-test after any optimization to make sure that you haven't
-broken anything.
-
-The integer DCT routines perform a lot of multiplications.  These
-multiplications must yield 32-bit results, but none of their input values
-are more than 16 bits wide.  On many machines, notably the 680x0 and 80x86
-CPUs, a 16x16=>32 bit multiply instruction is faster than a full 32x32=>32
-bit multiply.  Unfortunately there is no portable way to specify such a
-multiplication in C, but some compilers can generate one when you use the
-right combination of casts.  See the MULTIPLYxxx macro definitions in
-jdct.h.  If your compiler makes "int" be 32 bits and "short" be 16 bits,
-defining SHORTxSHORT_32 is fairly likely to work.  When experimenting with
-alternate definitions, be sure to test not only whether the code still works
-(use the self-test), but also whether it is actually faster --- on some
-compilers, alternate definitions may compute the right answer, yet be slower
-than the default.  Timing cjpeg on a large PGM (grayscale) input file is the
-best way to check this, as the DCT will be the largest fraction of the runtime
-in that mode.  (Note: some of the distributed compiler-specific jconfig files
-already contain #define switches to select appropriate MULTIPLYxxx
-definitions.)
-
-If your machine has sufficiently fast floating point hardware, you may find
-that the float DCT method is faster than the integer DCT methods, even
-after tweaking the integer multiply macros.  In that case you may want to
-make the float DCT be the default method.  (The only objection to this is
-that float DCT results may vary slightly across machines.)  To do that, add
-"#define JDCT_DEFAULT JDCT_FLOAT" to jconfig.h.  Even if you don't change
-the default, you should redefine JDCT_FASTEST, which is the method selected
-by djpeg's -fast switch.  Don't forget to update the documentation files
-(usage.doc and/or cjpeg.1, djpeg.1) to agree with what you've done.
-
-If access to "short" arrays is slow on your machine, it may be a win to
-define type JCOEF as int rather than short.  This will cost a good deal of
-memory though, particularly in some multi-pass modes, so don't do it unless
-you have memory to burn and short is REALLY slow.
-
-If your compiler can compile function calls in-line, make sure the INLINE
-macro in jmorecfg.h is defined as the keyword that marks a function
-inline-able.  Some compilers have a switch that tells the compiler to inline
-any function it thinks is profitable (e.g., -finline-functions for gcc).
-Enabling such a switch is likely to make the compiled code bigger but faster.
-
-In general, it's worth trying the maximum optimization level of your compiler,
-and experimenting with any optional optimizations such as loop unrolling.
-(Unfortunately, far too many compilers have optimizer bugs ... be prepared to
-back off if the code fails self-test.)  If you do any experimentation along
-these lines, please report the optimal settings to jpeg-info@uunet.uu.net so
-we can mention them in future releases.  Be sure to specify your machine and
-compiler version.
-
-
-HINTS FOR SPECIFIC SYSTEMS
-==========================
-
-We welcome reports on changes needed for systems not mentioned here.  Submit
-'em to jpeg-info@uunet.uu.net.  Also, if configure or ckconfig.c is wrong
-about how to configure the JPEG software for your system, please let us know.
-
-
-Acorn RISC OS:
-
-(Thanks to Simon Middleton for these hints on compiling with Desktop C.)
-After renaming the files according to Acorn conventions, take a copy of
-makefile.ansi, change all occurrences of 'libjpeg.a' to 'libjpeg.o' and
-change these definitions as indicated:
-
-CFLAGS= -throwback -IC: -Wn
-LDLIBS=C:o.Stubs
-SYSDEPMEM=jmemansi.o
-LN=Link
-AR=LibFile -c -o
-
-Also add a new line '.c.o:; $(cc) $< $(cflags) -c -o $@'.  Remove the
-lines '$(RM) libjpeg.o' and '$(AR2) libjpeg.o' and the 'jconfig.h'
-dependency section.
-
-Copy jconfig.doc to jconfig.h.  Edit jconfig.h to define TWO_FILE_COMMANDLINE
-and CHAR_IS_UNSIGNED.
-
-Run the makefile using !AMU not !Make.  If you want to use the 'clean' and
-'test' makefile entries then you will have to fiddle with the syntax a bit
-and rename the test files.
-
-
-Amiga:
-
-SAS C 6.50 reportedly is too buggy to compile the IJG code properly.
-A patch to update to 6.51 is available from SAS or AmiNet FTP sites.
-
-The supplied config files are set up to use jmemname.c as the memory
-manager, with temporary files being created on the device named by
-"JPEGTMP:".
-
-
-Atari ST/STE/TT:
- 
-Copy the project files makcjpeg.st, makdjpeg.st, maktjpeg.st, and makljpeg.st
-to cjpeg.prj, djpeg.prj, jpegtran.prj, and libjpeg.prj respectively.  The
-project files should work as-is with Pure C.  For Turbo C, change library
-filenames "pc..." to "tc..." in each project file.  Note that libjpeg.prj
-selects jmemansi.c as the recommended memory manager.  You'll probably want to
-adjust the DEFAULT_MAX_MEM setting --- you want it to be a couple hundred K
-less than your normal free memory.  Put "#define DEFAULT_MAX_MEM nnnn" into
-jconfig.h to do this.
-
-To use the 68881/68882 coprocessor for the floating point DCT, add the
-compiler option "-8" to the project files and replace pcfltlib.lib with
-pc881lib.lib in cjpeg.prj and djpeg.prj.  Or if you don't have a
-coprocessor, you may prefer to remove the float DCT code by undefining
-DCT_FLOAT_SUPPORTED in jmorecfg.h (since without a coprocessor, the float
-code will be too slow to be useful).  In that case, you can delete
-pcfltlib.lib from the project files.
-
-Note that you must make libjpeg.lib before making cjpeg.ttp, djpeg.ttp,
-or jpegtran.ttp.  You'll have to perform the self-test by hand.
-
-We haven't bothered to include project files for rdjpgcom and wrjpgcom.
-Those source files should just be compiled by themselves; they don't
-depend on the JPEG library.
-
-There is a bug in some older versions of the Turbo C library which causes the
-space used by temporary files created with "tmpfile()" not to be freed after
-an abnormal program exit.  If you check your disk afterwards, you will find
-cluster chains that are allocated but not used by a file.  This should not
-happen in cjpeg/djpeg/jpegtran, since we enable a signal catcher to explicitly
-close temp files before exiting.  But if you use the JPEG library with your
-own code, be sure to supply a signal catcher, or else use a different
-system-dependent memory manager.
-
-
-Cray:
-
-Should you be so fortunate as to be running JPEG on a Cray YMP, there is a
-compiler bug in old versions of Cray's Standard C (prior to 3.1).  If you
-still have an old compiler, you'll need to insert a line reading
-"#pragma novector" just before the loop	
-    for (i = 1; i <= (int) htbl->bits[l]; i++)
-      huffsize[p++] = (char) l;
-in fix_huff_tbl (in V5beta1, line 204 of jchuff.c and line 176 of jdhuff.c).
-[This bug may or may not still occur with the current IJG code, but it's
-probably a dead issue anyway...]
-
-
-HP-UX:
-
-If you have HP-UX 7.05 or later with the "software development" C compiler,
-you should run the compiler in ANSI mode.  If using the configure script,
-say
-	./configure CC='cc -Aa'
-(or -Ae if you prefer).  If configuring by hand, use makefile.ansi and add
-"-Aa" to the CFLAGS line in the makefile.
-
-If you have a pre-7.05 system, or if you are using the non-ANSI C compiler
-delivered with a minimum HP-UX system, then you must use makefile.unix
-(and do NOT add -Aa); or just run configure without the CC option.
-
-On HP 9000 series 800 machines, the HP C compiler is buggy in revisions prior
-to A.08.07.  If you get complaints about "not a typedef name", you'll have to
-use makefile.unix, or run configure without the CC option.
-
-
-Macintosh, generic comments:
-
-The supplied user-interface files (cjpeg.c, djpeg.c, etc) are set up to
-provide a Unix-style command line interface.  You can use this interface on
-the Mac by means of the ccommand() library routine provided by Metrowerks
-CodeWarrior or Think C.  This is only appropriate for testing the library,
-however; to make a user-friendly equivalent of cjpeg/djpeg you'd really want
-to develop a Mac-style user interface.  There isn't a complete example
-available at the moment, but there are some helpful starting points:
-1. Sam Bushell's free "To JPEG" applet provides drag-and-drop conversion to
-JPEG under System 7 and later.  This only illustrates how to use the
-compression half of the library, but it does a very nice job of that part.
-The CodeWarrior source code is available from http://www.pobox.com/~jsam.
-2. Jim Brunner prepared a Mac-style user interface for both compression and
-decompression.  Unfortunately, it hasn't been updated since IJG v4, and
-the library's API has changed considerably since then.  Still it may be of
-some help, particularly as a guide to compiling the IJG code under Think C.
-Jim's code is available from the Info-Mac archives, at sumex-aim.stanford.edu
-or mirrors thereof; see file /info-mac/dev/src/jpeg-convert-c.hqx.
-
-jmemmac.c is the recommended memory manager back end for Macintosh.  It uses
-NewPtr/DisposePtr instead of malloc/free, and has a Mac-specific
-implementation of jpeg_mem_available().  It also creates temporary files that
-follow Mac conventions.  (That part of the code relies on System-7-or-later OS
-functions.  See the comments in jmemmac.c if you need to run it on System 6.)
-NOTE that USE_MAC_MEMMGR must be defined in jconfig.h to use jmemmac.c.
-
-You can also use jmemnobs.c, if you don't care about handling images larger
-than available memory.  If you use any memory manager back end other than
-jmemmac.c, we recommend replacing "malloc" and "free" by "NewPtr" and
-"DisposePtr", because Mac C libraries often have peculiar implementations of
-malloc/free.  (For instance, free() may not return the freed space to the
-Mac Memory Manager.  This is undesirable for the IJG code because jmemmgr.c
-already clumps space requests.)
-
-
-Macintosh, Metrowerks CodeWarrior:
-
-The Unix-command-line-style interface can be used by defining USE_CCOMMAND.
-You'll also need to define TWO_FILE_COMMANDLINE to avoid stdin/stdout.
-This means that when using the cjpeg/djpeg programs, you'll have to type the
-input and output file names in the "Arguments" text-edit box, rather than
-using the file radio buttons.  (Perhaps USE_FDOPEN or USE_SETMODE would
-eliminate the problem, but I haven't heard from anyone who's tried it.)
-
-On 680x0 Macs, Metrowerks defines type "double" as a 10-byte IEEE extended
-float.  jmemmgr.c won't like this: it wants sizeof(ALIGN_TYPE) to be a power
-of 2.  Add "#define ALIGN_TYPE long" to jconfig.h to eliminate the complaint.
-
-The supplied configuration file jconfig.mac can be used for your jconfig.h;
-it includes all the recommended symbol definitions.  If you have AppleScript
-installed, you can run the supplied script makeproj.mac to create CodeWarrior
-project files for the library and the testbed applications, then build the
-library and applications.  (Thanks to Dan Sears and Don Agro for this nifty
-hack, which saves us from trying to maintain CodeWarrior project files as part
-of the IJG distribution...)
-
-
-Macintosh, Think C:
-
-The documentation in Jim Brunner's "JPEG Convert" source code (see above)
-includes detailed build instructions for Think C; it's probably somewhat
-out of date for the current release, but may be helpful.
-
-If you want to build the minimal command line version, proceed as follows.
-You'll have to prepare project files for the programs; we don't include any
-in the distribution since they are not text files.  Use the file lists in
-any of the supplied makefiles as a guide.  Also add the ANSI and Unix C
-libraries in a separate segment.  You may need to divide the JPEG files into
-more than one segment; we recommend dividing compression and decompression
-modules.  Define USE_CCOMMAND in jconfig.h so that the ccommand() routine is
-called.  You must also define TWO_FILE_COMMANDLINE because stdin/stdout
-don't handle binary data correctly.
-
-On 680x0 Macs, Think C defines type "double" as a 12-byte IEEE extended float.
-jmemmgr.c won't like this: it wants sizeof(ALIGN_TYPE) to be a power of 2.
-Add "#define ALIGN_TYPE long" to jconfig.h to eliminate the complaint.
-
-jconfig.mac should work as a jconfig.h configuration file for Think C,
-but the makeproj.mac AppleScript script is specific to CodeWarrior.  Sorry.
-
-
-MIPS R3000:
-
-MIPS's cc version 1.31 has a rather nasty optimization bug.  Don't use -O
-if you have that compiler version.  (Use "cc -V" to check the version.)
-Note that the R3000 chip is found in workstations from DEC and others.
-
-
-MS-DOS, generic comments for 16-bit compilers:
-
-The IJG code is designed to work well in 80x86 "small" or "medium" memory
-models (i.e., data pointers are 16 bits unless explicitly declared "far";
-code pointers can be either size).  You may be able to use small model to
-compile cjpeg or djpeg by itself, but you will probably have to use medium
-model for any larger application.  This won't make much difference in
-performance.  You *will* take a noticeable performance hit if you use a
-large-data memory model, and you should avoid "huge" model if at all
-possible.  Be sure that NEED_FAR_POINTERS is defined in jconfig.h if you use
-a small-data memory model; be sure it is NOT defined if you use a large-data
-model.  (The supplied makefiles and jconfig files for Borland and Microsoft C
-compile in medium model and define NEED_FAR_POINTERS.)
-
-The DOS-specific memory manager, jmemdos.c, should be used if possible.
-It needs some assembly-code routines which are in jmemdosa.asm; make sure
-your makefile assembles that file and includes it in the library.  If you
-don't have a suitable assembler, you can get pre-assembled object files for
-jmemdosa by FTP from ftp.uu.net:/graphics/jpeg/jdosaobj.zip.  (DOS-oriented
-distributions of the IJG source code often include these object files.)
-
-When using jmemdos.c, jconfig.h must define USE_MSDOS_MEMMGR and must set
-MAX_ALLOC_CHUNK to less than 64K (65520L is a typical value).  If your
-C library's far-heap malloc() can't allocate blocks that large, reduce
-MAX_ALLOC_CHUNK to whatever it can handle.
-
-If you can't use jmemdos.c for some reason --- for example, because you
-don't have an assembler to assemble jmemdosa.asm --- you'll have to fall
-back to jmemansi.c or jmemname.c.  You'll probably still need to set
-MAX_ALLOC_CHUNK in jconfig.h, because most DOS C libraries won't malloc()
-more than 64K at a time.  IMPORTANT: if you use jmemansi.c or jmemname.c,
-you will have to compile in a large-data memory model in order to get the
-right stdio library.  Too bad.
-
-wrjpgcom needs to be compiled in large model, because it malloc()s a 64KB
-work area to hold the comment text.  If your C library's malloc can't
-handle that, reduce MAX_COM_LENGTH as necessary in wrjpgcom.c.
-
-Most MS-DOS compilers treat stdin/stdout as text files, so you must use
-two-file command line style.  But if your compiler has either fdopen() or
-setmode(), you can use one-file style if you like.  To do this, define
-USE_SETMODE or USE_FDOPEN so that stdin/stdout will be set to binary mode.
-(USE_SETMODE seems to work with more DOS compilers than USE_FDOPEN.)  You
-should test that I/O through stdin/stdout produces the same results as I/O
-to explicitly named files... the "make test" procedures in the supplied
-makefiles do NOT use stdin/stdout.
-
-
-MS-DOS, generic comments for 32-bit compilers:
-
-None of the above comments about memory models apply if you are using a
-32-bit flat-memory-space environment, such as DJGPP or Watcom C.  (And you
-should use one if you have it, as performance will be much better than
-8086-compatible code!)  For flat-memory-space compilers, do NOT define
-NEED_FAR_POINTERS, and do NOT use jmemdos.c.  Use jmemnobs.c if the
-environment supplies adequate virtual memory, otherwise use jmemansi.c or
-jmemname.c.
-
-You'll still need to be careful about binary I/O through stdin/stdout.
-See the last paragraph of the previous section.
-
-
-MS-DOS, Borland C:
-
-Be sure to convert all the source files to DOS text format (CR/LF newlines).
-Although Borland C will often work OK with unmodified Unix (LF newlines)
-source files, sometimes it will give bogus compile errors.
-"Illegal character '#'" is the most common such error.  (This is true with
-Borland C 3.1, but perhaps is fixed in newer releases.)
-
-If you want one-file command line style, just undefine TWO_FILE_COMMANDLINE.
-jconfig.bcc already includes #define USE_SETMODE to make this work.
-(fdopen does not work correctly.)
-
-
-MS-DOS, Microsoft C:
-
-makefile.mc6 works with Microsoft C, DOS Visual C++, etc.  It should only
-be used if you want to build a 16-bit (small or medium memory model) program.
-
-If you want one-file command line style, just undefine TWO_FILE_COMMANDLINE.
-jconfig.mc6 already includes #define USE_SETMODE to make this work.
-(fdopen does not work correctly.)
-
-Note that this makefile assumes that the working copy of itself is called
-"makefile".  If you want to call it something else, say "makefile.mak",
-be sure to adjust the dependency line that reads "$(RFILE) : makefile".
-Otherwise the make will fail because it doesn't know how to create "makefile".
-Worse, some releases of Microsoft's make utilities give an incorrect error
-message in this situation.
-
-Old versions of MS C fail with an "out of macro expansion space" error
-because they can't cope with the macro TRACEMS8 (defined in jerror.h).
-If this happens to you, the easiest solution is to change TRACEMS8 to
-expand to nothing.  You'll lose the ability to dump out JPEG coefficient
-tables with djpeg -debug -debug, but at least you can compile.
-
-Original MS C 6.0 is very buggy; it compiles incorrect code unless you turn
-off optimization entirely (remove -O from CFLAGS).  6.00A is better, but it
-still generates bad code if you enable loop optimizations (-Ol or -Ox).
-
-MS C 8.0 crashes when compiling jquant1.c with optimization switch /Oo ...
-which is on by default.  To work around this bug, compile that one file
-with /Oo-.
-
-
-Microsoft Windows (all versions), generic comments:
-
-Some Windows system include files define typedef boolean as "unsigned char".
-The IJG code also defines typedef boolean, but we make it "int" by default.
-This doesn't affect the IJG programs because we don't import those Windows
-include files.  But if you use the JPEG library in your own program, and some
-of your program's files import one definition of boolean while some import the
-other, you can get all sorts of mysterious problems.  A good preventive step
-is to make the IJG library use "unsigned char" for boolean.  To do that,
-add something like this to your jconfig.h file:
-	/* Define "boolean" as unsigned char, not int, per Windows custom */
-	#ifndef __RPCNDR_H__	/* don't conflict if rpcndr.h already read */
-	typedef unsigned char boolean;
-	#endif
-	#define HAVE_BOOLEAN	/* prevent jmorecfg.h from redefining it */
-(This is already in jconfig.vc, by the way.)
-
-windef.h contains the declarations
-	#define far
-	#define FAR far
-Since jmorecfg.h tries to define FAR as empty, you may get a compiler
-warning if you include both jpeglib.h and windef.h (which windows.h
-includes).  To suppress the warning, you can put "#ifndef FAR"/"#endif"
-around the line "#define FAR" in jmorecfg.h.
-
-When using the library in a Windows application, you will almost certainly
-want to modify or replace the error handler module jerror.c, since our
-default error handler does a couple of inappropriate things:
-  1. it tries to write error and warning messages on stderr;
-  2. in event of a fatal error, it exits by calling exit().
-
-A simple stopgap solution for problem 1 is to replace the line
-	fprintf(stderr, "%s\n", buffer);
-(in output_message in jerror.c) with
-	MessageBox(GetActiveWindow(),buffer,"JPEG Error",MB_OK|MB_ICONERROR);
-It's highly recommended that you at least do that much, since otherwise
-error messages will disappear into nowhere.  (Beginning with IJG v6b, this
-code is already present in jerror.c; just define USE_WINDOWS_MESSAGEBOX in
-jconfig.h to enable it.)
-
-The proper solution for problem 2 is to return control to your calling
-application after a library error.  This can be done with the setjmp/longjmp
-technique discussed in libjpeg.doc and illustrated in example.c.  (NOTE:
-some older Windows C compilers provide versions of setjmp/longjmp that
-don't actually work under Windows.  You may need to use the Windows system
-functions Catch and Throw instead.)
-
-The recommended memory manager under Windows is jmemnobs.c; in other words,
-let Windows do any virtual memory management needed.  You should NOT use
-jmemdos.c nor jmemdosa.asm under Windows.
-
-For Windows 3.1, we recommend compiling in medium or large memory model;
-for newer Windows versions, use a 32-bit flat memory model.  (See the MS-DOS
-sections above for more info about memory models.)  In the 16-bit memory
-models only, you'll need to put
-	#define MAX_ALLOC_CHUNK 65520L	/* Maximum request to malloc() */
-into jconfig.h to limit allocation chunks to 64Kb.  (Without that, you'd
-have to use huge memory model, which slows things down unnecessarily.)
-jmemnobs.c works without modification in large or flat memory models, but to
-use medium model, you need to modify its jpeg_get_large and jpeg_free_large
-routines to allocate far memory.  In any case, you might like to replace
-its calls to malloc and free with direct calls on Windows memory allocation
-functions.
-
-You may also want to modify jdatasrc.c and jdatadst.c to use Windows file
-operations rather than fread/fwrite.  This is only necessary if your C
-compiler doesn't provide a competent implementation of C stdio functions.
-
-You might want to tweak the RGB_xxx macros in jmorecfg.h so that the library
-will accept or deliver color pixels in BGR sample order, not RGB; BGR order
-is usually more convenient under Windows.  Note that this change will break
-the sample applications cjpeg/djpeg, but the library itself works fine.
-
-
-Many people want to convert the IJG library into a DLL.  This is reasonably
-straightforward, but watch out for the following:
-
-  1. Don't try to compile as a DLL in small or medium memory model; use
-large model, or even better, 32-bit flat model.  Many places in the IJG code
-assume the address of a local variable is an ordinary (not FAR) pointer;
-that isn't true in a medium-model DLL.
-
-  2. Microsoft C cannot pass file pointers between applications and DLLs.
-(See Microsoft Knowledge Base, PSS ID Number Q50336.)  So jdatasrc.c and
-jdatadst.c don't work if you open a file in your application and then pass
-the pointer to the DLL.  One workaround is to make jdatasrc.c/jdatadst.c
-part of your main application rather than part of the DLL.
-
-  3. You'll probably need to modify the macros GLOBAL() and EXTERN() to
-attach suitable linkage keywords to the exported routine names.  Similarly,
-you'll want to modify METHODDEF() and JMETHOD() to ensure function pointers
-are declared in a way that lets application routines be called back through
-the function pointers.  These macros are in jmorecfg.h.  Typical definitions
-for a 16-bit DLL are:
-	#define GLOBAL(type)		type _far _pascal _loadds _export
-	#define EXTERN(type)		extern type _far _pascal _loadds
-	#define METHODDEF(type)		static type _far _pascal
-	#define JMETHOD(type,methodname,arglist)  \
-		type (_far _pascal *methodname) arglist
-For a 32-bit DLL you may want something like
-	#define GLOBAL(type)		__declspec(dllexport) type
-	#define EXTERN(type)		extern __declspec(dllexport) type
-Although not all the GLOBAL routines are actually intended to be called by
-the application, the performance cost of making them all DLL entry points is
-negligible.
-
-The unmodified IJG library presents a very C-specific application interface,
-so the resulting DLL is only usable from C or C++ applications.  There has
-been some talk of writing wrapper code that would present a simpler interface
-usable from other languages, such as Visual Basic.  This is on our to-do list
-but hasn't been very high priority --- any volunteers out there?
-
-
-Microsoft Windows, Borland C:
-
-The provided jconfig.bcc should work OK in a 32-bit Windows environment,
-but you'll need to tweak it in a 16-bit environment (you'd need to define
-NEED_FAR_POINTERS and MAX_ALLOC_CHUNK).  Beware that makefile.bcc will need
-alteration if you want to use it for Windows --- in particular, you should
-use jmemnobs.c not jmemdos.c under Windows.
-
-Borland C++ 4.5 fails with an internal compiler error when trying to compile
-jdmerge.c in 32-bit mode.  If enough people complain, perhaps Borland will fix
-it.  In the meantime, the simplest known workaround is to add a redundant
-definition of the variable range_limit in h2v1_merged_upsample(), at the head
-of the block that handles odd image width (about line 268 in v6 jdmerge.c):
-  /* If image width is odd, do the last output column separately */
-  if (cinfo->output_width & 1) {
-    register JSAMPLE * range_limit = cinfo->sample_range_limit; /* ADD THIS */
-    cb = GETJSAMPLE(*inptr1);
-Pretty bizarre, especially since the very similar routine h2v2_merged_upsample
-doesn't trigger the bug.
-Recent reports suggest that this bug does not occur with "bcc32a" (the
-Pentium-optimized version of the compiler).
-
-Another report from a user of Borland C 4.5 was that incorrect code (leading
-to a color shift in processed images) was produced if any of the following
-optimization switch combinations were used: 
-	-Ot -Og
-	-Ot -Op
-	-Ot -Om
-So try backing off on optimization if you see such a problem.  (Are there
-several different releases all numbered "4.5"??)
-
-
-Microsoft Windows, Microsoft Visual C++:
-
-jconfig.vc should work OK with any Microsoft compiler for a 32-bit memory
-model.  makefile.vc is intended for command-line use.  (If you are using
-the Developer Studio environment, you may prefer the DevStudio project
-files; see below.)
-
-Some users feel that it's easier to call the library from C++ code if you
-force VC++ to treat the library as C++ code, which you can do by renaming
-all the *.c files to *.cpp (and adjusting the makefile to match).  This
-avoids the need to put extern "C" { ... } around #include "jpeglib.h" in
-your C++ application.
-
-
-Microsoft Windows, Microsoft Developer Studio:
-
-We include makefiles that should work as project files in DevStudio 4.2 or
-later.  There is a library makefile that builds the IJG library as a static
-Win32 library, and an application makefile that builds the sample applications
-as Win32 console applications.  (Even if you only want the library, we
-recommend building the applications so that you can run the self-test.)
-
-To use:
-1. Copy jconfig.vc to jconfig.h, makelib.ds to jpeg.mak, and
-   makeapps.ds to apps.mak.  (Note that the renaming is critical!)
-2. Click on the .mak files to construct project workspaces.
-   (If you are using DevStudio more recent than 4.2, you'll probably
-   get a message saying that the makefiles are being updated.)
-3. Build the library project, then the applications project.
-4. Move the application .exe files from `app`\Release to an
-   appropriate location on your path.
-5. To perform the self-test, execute the command line
-	NMAKE /f makefile.vc  test
-
-
-OS/2, Borland C++:
-
-Watch out for optimization bugs in older Borland compilers; you may need
-to back off the optimization switch settings.  See the comments in
-makefile.bcc.
-
-
-SGI:
-
-On some SGI systems, you may need to set "AR2= ar -ts" in the Makefile.
-If you are using configure, you can do this by saying
-	./configure RANLIB='ar -ts'
-This change is not needed on all SGIs.  Use it only if the make fails at the
-stage of linking the completed programs.
-
-On the MIPS R4000 architecture (Indy, etc.), the compiler option "-mips2"
-reportedly speeds up the float DCT method substantially, enough to make it
-faster than the default int method (but still slower than the fast int
-method).  If you use -mips2, you may want to alter the default DCT method to
-be float.  To do this, put "#define JDCT_DEFAULT JDCT_FLOAT" in jconfig.h.
-
-
-VMS:
-
-On an Alpha/VMS system with MMS, be sure to use the "/Marco=Alpha=1"
-qualifier with MMS when building the JPEG package.
-
-VAX/VMS v5.5-1 may have problems with the test step of the build procedure
-reporting differences when it compares the original and test images.  If the
-error points to the last block of the files, it is most likely bogus and may
-be safely ignored.  It seems to be because the files are Stream_LF and
-Backup/Compare has difficulty with the (presumably) null padded files.
-This problem was not observed on VAX/VMS v6.1 or AXP/VMS v6.1.
diff --git a/src/3rdparty/libjpeg/jcapimin.c b/src/3rdparty/libjpeg/jcapimin.c
deleted file mode 100644
index f4c2571b7..000000000
--- a/src/3rdparty/libjpeg/jcapimin.c
+++ /dev/null
@@ -1,280 +0,0 @@
-/*
- * jcapimin.c
- *
- * Copyright (C) 1994-1998, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains application interface code for the compression half
- * of the JPEG library.  These are the "minimum" API routines that may be
- * needed in either the normal full-compression case or the transcoding-only
- * case.
- *
- * Most of the routines intended to be called directly by an application
- * are in this file or in jcapistd.c.  But also see jcparam.c for
- * parameter-setup helper routines, jcomapi.c for routines shared by
- * compression and decompression, and jctrans.c for the transcoding case.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/*
- * Initialization of a JPEG compression object.
- * The error manager must already be set up (in case memory manager fails).
- */
-
-GLOBAL(void)
-jpeg_CreateCompress (j_compress_ptr cinfo, int version, size_t structsize)
-{
-  int i;
-
-  /* Guard against version mismatches between library and caller. */
-  cinfo->mem = NULL;		/* so jpeg_destroy knows mem mgr not called */
-  if (version != JPEG_LIB_VERSION)
-    ERREXIT2(cinfo, JERR_BAD_LIB_VERSION, JPEG_LIB_VERSION, version);
-  if (structsize != SIZEOF(struct jpeg_compress_struct))
-    ERREXIT2(cinfo, JERR_BAD_STRUCT_SIZE, 
-	     (int) SIZEOF(struct jpeg_compress_struct), (int) structsize);
-
-  /* For debugging purposes, we zero the whole master structure.
-   * But the application has already set the err pointer, and may have set
-   * client_data, so we have to save and restore those fields.
-   * Note: if application hasn't set client_data, tools like Purify may
-   * complain here.
-   */
-  {
-    struct jpeg_error_mgr * err = cinfo->err;
-    void * client_data = cinfo->client_data; /* ignore Purify complaint here */
-    MEMZERO(cinfo, SIZEOF(struct jpeg_compress_struct));
-    cinfo->err = err;
-    cinfo->client_data = client_data;
-  }
-  cinfo->is_decompressor = FALSE;
-
-  /* Initialize a memory manager instance for this object */
-  jinit_memory_mgr((j_common_ptr) cinfo);
-
-  /* Zero out pointers to permanent structures. */
-  cinfo->progress = NULL;
-  cinfo->dest = NULL;
-
-  cinfo->comp_info = NULL;
-
-  for (i = 0; i < NUM_QUANT_TBLS; i++)
-    cinfo->quant_tbl_ptrs[i] = NULL;
-
-  for (i = 0; i < NUM_HUFF_TBLS; i++) {
-    cinfo->dc_huff_tbl_ptrs[i] = NULL;
-    cinfo->ac_huff_tbl_ptrs[i] = NULL;
-  }
-
-  cinfo->script_space = NULL;
-
-  cinfo->input_gamma = 1.0;	/* in case application forgets */
-
-  /* OK, I'm ready */
-  cinfo->global_state = CSTATE_START;
-}
-
-
-/*
- * Destruction of a JPEG compression object
- */
-
-GLOBAL(void)
-jpeg_destroy_compress (j_compress_ptr cinfo)
-{
-  jpeg_destroy((j_common_ptr) cinfo); /* use common routine */
-}
-
-
-/*
- * Abort processing of a JPEG compression operation,
- * but don't destroy the object itself.
- */
-
-GLOBAL(void)
-jpeg_abort_compress (j_compress_ptr cinfo)
-{
-  jpeg_abort((j_common_ptr) cinfo); /* use common routine */
-}
-
-
-/*
- * Forcibly suppress or un-suppress all quantization and Huffman tables.
- * Marks all currently defined tables as already written (if suppress)
- * or not written (if !suppress).  This will control whether they get emitted
- * by a subsequent jpeg_start_compress call.
- *
- * This routine is exported for use by applications that want to produce
- * abbreviated JPEG datastreams.  It logically belongs in jcparam.c, but
- * since it is called by jpeg_start_compress, we put it here --- otherwise
- * jcparam.o would be linked whether the application used it or not.
- */
-
-GLOBAL(void)
-jpeg_suppress_tables (j_compress_ptr cinfo, boolean suppress)
-{
-  int i;
-  JTQUANT_TBL * qtbl;
-  JHUFF_TBL * htbl;
-
-  for (i = 0; i < NUM_QUANT_TBLS; i++) {
-    if ((qtbl = cinfo->quant_tbl_ptrs[i]) != NULL)
-      qtbl->sent_table = suppress;
-  }
-
-  for (i = 0; i < NUM_HUFF_TBLS; i++) {
-    if ((htbl = cinfo->dc_huff_tbl_ptrs[i]) != NULL)
-      htbl->sent_table = suppress;
-    if ((htbl = cinfo->ac_huff_tbl_ptrs[i]) != NULL)
-      htbl->sent_table = suppress;
-  }
-}
-
-
-/*
- * Finish JPEG compression.
- *
- * If a multipass operating mode was selected, this may do a great deal of
- * work including most of the actual output.
- */
-
-GLOBAL(void)
-jpeg_finish_compress (j_compress_ptr cinfo)
-{
-  JDIMENSION iMCU_row;
-
-  if (cinfo->global_state == CSTATE_SCANNING ||
-      cinfo->global_state == CSTATE_RAW_OK) {
-    /* Terminate first pass */
-    if (cinfo->next_scanline < cinfo->image_height)
-      ERREXIT(cinfo, JERR_TOO_LITTLE_DATA);
-    (*cinfo->master->finish_pass) (cinfo);
-  } else if (cinfo->global_state != CSTATE_WRCOEFS)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-  /* Perform any remaining passes */
-  while (! cinfo->master->is_last_pass) {
-    (*cinfo->master->prepare_for_pass) (cinfo);
-    for (iMCU_row = 0; iMCU_row < cinfo->total_iMCU_rows; iMCU_row++) {
-      if (cinfo->progress != NULL) {
-	cinfo->progress->pass_counter = (long) iMCU_row;
-	cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows;
-	(*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo);
-      }
-      /* We bypass the main controller and invoke coef controller directly;
-       * all work is being done from the coefficient buffer.
-       */
-      if (! (*cinfo->coef->compress_data) (cinfo, (JSAMPIMAGE) NULL))
-	ERREXIT(cinfo, JERR_CANT_SUSPEND);
-    }
-    (*cinfo->master->finish_pass) (cinfo);
-  }
-  /* Write EOI, do final cleanup */
-  (*cinfo->marker->write_file_trailer) (cinfo);
-  (*cinfo->dest->term_destination) (cinfo);
-  /* We can use jpeg_abort to release memory and reset global_state */
-  jpeg_abort((j_common_ptr) cinfo);
-}
-
-
-/*
- * Write a special marker.
- * This is only recommended for writing COM or APPn markers.
- * Must be called after jpeg_start_compress() and before
- * first call to jpeg_write_scanlines() or jpeg_write_raw_data().
- */
-
-GLOBAL(void)
-jpeg_write_marker (j_compress_ptr cinfo, int marker,
-		   const JOCTET *dataptr, unsigned int datalen)
-{
-  JMETHOD(void, write_marker_byte, (j_compress_ptr info, int val));
-
-  if (cinfo->next_scanline != 0 ||
-      (cinfo->global_state != CSTATE_SCANNING &&
-       cinfo->global_state != CSTATE_RAW_OK &&
-       cinfo->global_state != CSTATE_WRCOEFS))
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-
-  (*cinfo->marker->write_marker_header) (cinfo, marker, datalen);
-  write_marker_byte = cinfo->marker->write_marker_byte;	/* copy for speed */
-  while (datalen--) {
-    (*write_marker_byte) (cinfo, *dataptr);
-    dataptr++;
-  }
-}
-
-/* Same, but piecemeal. */
-
-GLOBAL(void)
-jpeg_write_m_header (j_compress_ptr cinfo, int marker, unsigned int datalen)
-{
-  if (cinfo->next_scanline != 0 ||
-      (cinfo->global_state != CSTATE_SCANNING &&
-       cinfo->global_state != CSTATE_RAW_OK &&
-       cinfo->global_state != CSTATE_WRCOEFS))
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-
-  (*cinfo->marker->write_marker_header) (cinfo, marker, datalen);
-}
-
-GLOBAL(void)
-jpeg_write_m_byte (j_compress_ptr cinfo, int val)
-{
-  (*cinfo->marker->write_marker_byte) (cinfo, val);
-}
-
-
-/*
- * Alternate compression function: just write an abbreviated table file.
- * Before calling this, all parameters and a data destination must be set up.
- *
- * To produce a pair of files containing abbreviated tables and abbreviated
- * image data, one would proceed as follows:
- *
- *		initialize JPEG object
- *		set JPEG parameters
- *		set destination to table file
- *		jpeg_write_tables(cinfo);
- *		set destination to image file
- *		jpeg_start_compress(cinfo, FALSE);
- *		write data...
- *		jpeg_finish_compress(cinfo);
- *
- * jpeg_write_tables has the side effect of marking all tables written
- * (same as jpeg_suppress_tables(..., TRUE)).  Thus a subsequent start_compress
- * will not re-emit the tables unless it is passed write_all_tables=TRUE.
- */
-
-GLOBAL(void)
-jpeg_write_tables (j_compress_ptr cinfo)
-{
-  if (cinfo->global_state != CSTATE_START)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-
-  /* (Re)initialize error mgr and destination modules */
-  (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo);
-  (*cinfo->dest->init_destination) (cinfo);
-  /* Initialize the marker writer ... bit of a crock to do it here. */
-  jinit_marker_writer(cinfo);
-  /* Write them tables! */
-  (*cinfo->marker->write_tables_only) (cinfo);
-  /* And clean up. */
-  (*cinfo->dest->term_destination) (cinfo);
-  /*
-   * In library releases up through v6a, we called jpeg_abort() here to free
-   * any working memory allocated by the destination manager and marker
-   * writer.  Some applications had a problem with that: they allocated space
-   * of their own from the library memory manager, and didn't want it to go
-   * away during write_tables.  So now we do nothing.  This will cause a
-   * memory leak if an app calls write_tables repeatedly without doing a full
-   * compression cycle or otherwise resetting the JPEG object.  However, that
-   * seems less bad than unexpectedly freeing memory in the normal case.
-   * An app that prefers the old behavior can call jpeg_abort for itself after
-   * each call to jpeg_write_tables().
-   */
-}
diff --git a/src/3rdparty/libjpeg/jcapistd.c b/src/3rdparty/libjpeg/jcapistd.c
deleted file mode 100644
index c0320b1b1..000000000
--- a/src/3rdparty/libjpeg/jcapistd.c
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * jcapistd.c
- *
- * Copyright (C) 1994-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains application interface code for the compression half
- * of the JPEG library.  These are the "standard" API routines that are
- * used in the normal full-compression case.  They are not used by a
- * transcoding-only application.  Note that if an application links in
- * jpeg_start_compress, it will end up linking in the entire compressor.
- * We thus must separate this file from jcapimin.c to avoid linking the
- * whole compression library into a transcoder.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/*
- * Compression initialization.
- * Before calling this, all parameters and a data destination must be set up.
- *
- * We require a write_all_tables parameter as a failsafe check when writing
- * multiple datastreams from the same compression object.  Since prior runs
- * will have left all the tables marked sent_table=TRUE, a subsequent run
- * would emit an abbreviated stream (no tables) by default.  This may be what
- * is wanted, but for safety's sake it should not be the default behavior:
- * programmers should have to make a deliberate choice to emit abbreviated
- * images.  Therefore the documentation and examples should encourage people
- * to pass write_all_tables=TRUE; then it will take active thought to do the
- * wrong thing.
- */
-
-GLOBAL(void)
-jpeg_start_compress (j_compress_ptr cinfo, boolean write_all_tables)
-{
-  if (cinfo->global_state != CSTATE_START)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-
-  if (write_all_tables)
-    jpeg_suppress_tables(cinfo, FALSE);	/* mark all tables to be written */
-
-  /* (Re)initialize error mgr and destination modules */
-  (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo);
-  (*cinfo->dest->init_destination) (cinfo);
-  /* Perform master selection of active modules */
-  jinit_compress_master(cinfo);
-  /* Set up for the first pass */
-  (*cinfo->master->prepare_for_pass) (cinfo);
-  /* Ready for application to drive first pass through jpeg_write_scanlines
-   * or jpeg_write_raw_data.
-   */
-  cinfo->next_scanline = 0;
-  cinfo->global_state = (cinfo->raw_data_in ? CSTATE_RAW_OK : CSTATE_SCANNING);
-}
-
-
-/*
- * Write some scanlines of data to the JPEG compressor.
- *
- * The return value will be the number of lines actually written.
- * This should be less than the supplied num_lines only in case that
- * the data destination module has requested suspension of the compressor,
- * or if more than image_height scanlines are passed in.
- *
- * Note: we warn about excess calls to jpeg_write_scanlines() since
- * this likely signals an application programmer error.  However,
- * excess scanlines passed in the last valid call are *silently* ignored,
- * so that the application need not adjust num_lines for end-of-image
- * when using a multiple-scanline buffer.
- */
-
-GLOBAL(JDIMENSION)
-jpeg_write_scanlines (j_compress_ptr cinfo, JSAMPARRAY scanlines,
-		      JDIMENSION num_lines)
-{
-  JDIMENSION row_ctr, rows_left;
-
-  if (cinfo->global_state != CSTATE_SCANNING)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-  if (cinfo->next_scanline >= cinfo->image_height)
-    WARNMS(cinfo, JWRN_TOO_MUCH_DATA);
-
-  /* Call progress monitor hook if present */
-  if (cinfo->progress != NULL) {
-    cinfo->progress->pass_counter = (long) cinfo->next_scanline;
-    cinfo->progress->pass_limit = (long) cinfo->image_height;
-    (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo);
-  }
-
-  /* Give master control module another chance if this is first call to
-   * jpeg_write_scanlines.  This lets output of the frame/scan headers be
-   * delayed so that application can write COM, etc, markers between
-   * jpeg_start_compress and jpeg_write_scanlines.
-   */
-  if (cinfo->master->call_pass_startup)
-    (*cinfo->master->pass_startup) (cinfo);
-
-  /* Ignore any extra scanlines at bottom of image. */
-  rows_left = cinfo->image_height - cinfo->next_scanline;
-  if (num_lines > rows_left)
-    num_lines = rows_left;
-
-  row_ctr = 0;
-  (*cinfo->main->process_data) (cinfo, scanlines, &row_ctr, num_lines);
-  cinfo->next_scanline += row_ctr;
-  return row_ctr;
-}
-
-
-/*
- * Alternate entry point to write raw data.
- * Processes exactly one iMCU row per call, unless suspended.
- */
-
-GLOBAL(JDIMENSION)
-jpeg_write_raw_data (j_compress_ptr cinfo, JSAMPIMAGE data,
-		     JDIMENSION num_lines)
-{
-  JDIMENSION lines_per_iMCU_row;
-
-  if (cinfo->global_state != CSTATE_RAW_OK)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-  if (cinfo->next_scanline >= cinfo->image_height) {
-    WARNMS(cinfo, JWRN_TOO_MUCH_DATA);
-    return 0;
-  }
-
-  /* Call progress monitor hook if present */
-  if (cinfo->progress != NULL) {
-    cinfo->progress->pass_counter = (long) cinfo->next_scanline;
-    cinfo->progress->pass_limit = (long) cinfo->image_height;
-    (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo);
-  }
-
-  /* Give master control module another chance if this is first call to
-   * jpeg_write_raw_data.  This lets output of the frame/scan headers be
-   * delayed so that application can write COM, etc, markers between
-   * jpeg_start_compress and jpeg_write_raw_data.
-   */
-  if (cinfo->master->call_pass_startup)
-    (*cinfo->master->pass_startup) (cinfo);
-
-  /* Verify that at least one iMCU row has been passed. */
-  lines_per_iMCU_row = cinfo->max_v_samp_factor * DCTSIZE;
-  if (num_lines < lines_per_iMCU_row)
-    ERREXIT(cinfo, JERR_BUFFER_SIZE);
-
-  /* Directly compress the row. */
-  if (! (*cinfo->coef->compress_data) (cinfo, data)) {
-    /* If compressor did not consume the whole row, suspend processing. */
-    return 0;
-  }
-
-  /* OK, we processed one iMCU row. */
-  cinfo->next_scanline += lines_per_iMCU_row;
-  return lines_per_iMCU_row;
-}
diff --git a/src/3rdparty/libjpeg/jccoefct.c b/src/3rdparty/libjpeg/jccoefct.c
deleted file mode 100644
index 1963ddb61..000000000
--- a/src/3rdparty/libjpeg/jccoefct.c
+++ /dev/null
@@ -1,449 +0,0 @@
-/*
- * jccoefct.c
- *
- * Copyright (C) 1994-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains the coefficient buffer controller for compression.
- * This controller is the top level of the JPEG compressor proper.
- * The coefficient buffer lies between forward-DCT and entropy encoding steps.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/* We use a full-image coefficient buffer when doing Huffman optimization,
- * and also for writing multiple-scan JPEG files.  In all cases, the DCT
- * step is run during the first pass, and subsequent passes need only read
- * the buffered coefficients.
- */
-#ifdef ENTROPY_OPT_SUPPORTED
-#define FULL_COEF_BUFFER_SUPPORTED
-#else
-#ifdef C_MULTISCAN_FILES_SUPPORTED
-#define FULL_COEF_BUFFER_SUPPORTED
-#endif
-#endif
-
-
-/* Private buffer controller object */
-
-typedef struct {
-  struct jpeg_c_coef_controller pub; /* public fields */
-
-  JDIMENSION iMCU_row_num;	/* iMCU row # within image */
-  JDIMENSION mcu_ctr;		/* counts MCUs processed in current row */
-  int MCU_vert_offset;		/* counts MCU rows within iMCU row */
-  int MCU_rows_per_iMCU_row;	/* number of such rows needed */
-
-  /* For single-pass compression, it's sufficient to buffer just one MCU
-   * (although this may prove a bit slow in practice).  We allocate a
-   * workspace of C_MAX_BLOCKS_IN_MCU coefficient blocks, and reuse it for each
-   * MCU constructed and sent.  (On 80x86, the workspace is FAR even though
-   * it's not really very big; this is to keep the module interfaces unchanged
-   * when a large coefficient buffer is necessary.)
-   * In multi-pass modes, this array points to the current MCU's blocks
-   * within the virtual arrays.
-   */
-  JBLOCKROW MCU_buffer[C_MAX_BLOCKS_IN_MCU];
-
-  /* In multi-pass modes, we need a virtual block array for each component. */
-  jvirt_barray_ptr whole_image[MAX_COMPONENTS];
-} my_coef_controller;
-
-typedef my_coef_controller * my_coef_ptr;
-
-
-/* Forward declarations */
-METHODDEF(boolean) compress_data
-    JPP((j_compress_ptr cinfo, JSAMPIMAGE input_buf));
-#ifdef FULL_COEF_BUFFER_SUPPORTED
-METHODDEF(boolean) compress_first_pass
-    JPP((j_compress_ptr cinfo, JSAMPIMAGE input_buf));
-METHODDEF(boolean) compress_output
-    JPP((j_compress_ptr cinfo, JSAMPIMAGE input_buf));
-#endif
-
-
-LOCAL(void)
-start_iMCU_row (j_compress_ptr cinfo)
-/* Reset within-iMCU-row counters for a new row */
-{
-  my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-
-  /* In an interleaved scan, an MCU row is the same as an iMCU row.
-   * In a noninterleaved scan, an iMCU row has v_samp_factor MCU rows.
-   * But at the bottom of the image, process only what's left.
-   */
-  if (cinfo->comps_in_scan > 1) {
-    coef->MCU_rows_per_iMCU_row = 1;
-  } else {
-    if (coef->iMCU_row_num < (cinfo->total_iMCU_rows-1))
-      coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->v_samp_factor;
-    else
-      coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->last_row_height;
-  }
-
-  coef->mcu_ctr = 0;
-  coef->MCU_vert_offset = 0;
-}
-
-
-/*
- * Initialize for a processing pass.
- */
-
-METHODDEF(void)
-start_pass_coef (j_compress_ptr cinfo, J_BUF_MODE pass_mode)
-{
-  my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-
-  coef->iMCU_row_num = 0;
-  start_iMCU_row(cinfo);
-
-  switch (pass_mode) {
-  case JBUF_PASS_THRU:
-    if (coef->whole_image[0] != NULL)
-      ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-    coef->pub.compress_data = compress_data;
-    break;
-#ifdef FULL_COEF_BUFFER_SUPPORTED
-  case JBUF_SAVE_AND_PASS:
-    if (coef->whole_image[0] == NULL)
-      ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-    coef->pub.compress_data = compress_first_pass;
-    break;
-  case JBUF_CRANK_DEST:
-    if (coef->whole_image[0] == NULL)
-      ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-    coef->pub.compress_data = compress_output;
-    break;
-#endif
-  default:
-    ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-    break;
-  }
-}
-
-
-/*
- * Process some data in the single-pass case.
- * We process the equivalent of one fully interleaved MCU row ("iMCU" row)
- * per call, ie, v_samp_factor block rows for each component in the image.
- * Returns TRUE if the iMCU row is completed, FALSE if suspended.
- *
- * NB: input_buf contains a plane for each component in image,
- * which we index according to the component's SOF position.
- */
-
-METHODDEF(boolean)
-compress_data (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
-{
-  my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-  JDIMENSION MCU_col_num;	/* index of current MCU within row */
-  JDIMENSION last_MCU_col = cinfo->MCUs_per_row - 1;
-  JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1;
-  int blkn, bi, ci, yindex, yoffset, blockcnt;
-  JDIMENSION ypos, xpos;
-  jpeg_component_info *compptr;
-
-  /* Loop to write as much as one whole iMCU row */
-  for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row;
-       yoffset++) {
-    for (MCU_col_num = coef->mcu_ctr; MCU_col_num <= last_MCU_col;
-	 MCU_col_num++) {
-      /* Determine where data comes from in input_buf and do the DCT thing.
-       * Each call on forward_DCT processes a horizontal row of DCT blocks
-       * as wide as an MCU; we rely on having allocated the MCU_buffer[] blocks
-       * sequentially.  Dummy blocks at the right or bottom edge are filled in
-       * specially.  The data in them does not matter for image reconstruction,
-       * so we fill them with values that will encode to the smallest amount of
-       * data, viz: all zeroes in the AC entries, DC entries equal to previous
-       * block's DC value.  (Thanks to Thomas Kinsman for this idea.)
-       */
-      blkn = 0;
-      for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-	compptr = cinfo->cur_comp_info[ci];
-	blockcnt = (MCU_col_num < last_MCU_col) ? compptr->MCU_width
-						: compptr->last_col_width;
-	xpos = MCU_col_num * compptr->MCU_sample_width;
-	ypos = yoffset * DCTSIZE; /* ypos == (yoffset+yindex) * DCTSIZE */
-	for (yindex = 0; yindex < compptr->MCU_height; yindex++) {
-	  if (coef->iMCU_row_num < last_iMCU_row ||
-	      yoffset+yindex < compptr->last_row_height) {
-	    (*cinfo->fdct->forward_DCT) (cinfo, compptr,
-					 input_buf[compptr->component_index],
-					 coef->MCU_buffer[blkn],
-					 ypos, xpos, (JDIMENSION) blockcnt);
-	    if (blockcnt < compptr->MCU_width) {
-	      /* Create some dummy blocks at the right edge of the image. */
-	      jzero_far((void FAR *) coef->MCU_buffer[blkn + blockcnt],
-			(compptr->MCU_width - blockcnt) * SIZEOF(JBLOCK));
-	      for (bi = blockcnt; bi < compptr->MCU_width; bi++) {
-		coef->MCU_buffer[blkn+bi][0][0] = coef->MCU_buffer[blkn+bi-1][0][0];
-	      }
-	    }
-	  } else {
-	    /* Create a row of dummy blocks at the bottom of the image. */
-	    jzero_far((void FAR *) coef->MCU_buffer[blkn],
-		      compptr->MCU_width * SIZEOF(JBLOCK));
-	    for (bi = 0; bi < compptr->MCU_width; bi++) {
-	      coef->MCU_buffer[blkn+bi][0][0] = coef->MCU_buffer[blkn-1][0][0];
-	    }
-	  }
-	  blkn += compptr->MCU_width;
-	  ypos += DCTSIZE;
-	}
-      }
-      /* Try to write the MCU.  In event of a suspension failure, we will
-       * re-DCT the MCU on restart (a bit inefficient, could be fixed...)
-       */
-      if (! (*cinfo->entropy->encode_mcu) (cinfo, coef->MCU_buffer)) {
-	/* Suspension forced; update state counters and exit */
-	coef->MCU_vert_offset = yoffset;
-	coef->mcu_ctr = MCU_col_num;
-	return FALSE;
-      }
-    }
-    /* Completed an MCU row, but perhaps not an iMCU row */
-    coef->mcu_ctr = 0;
-  }
-  /* Completed the iMCU row, advance counters for next one */
-  coef->iMCU_row_num++;
-  start_iMCU_row(cinfo);
-  return TRUE;
-}
-
-
-#ifdef FULL_COEF_BUFFER_SUPPORTED
-
-/*
- * Process some data in the first pass of a multi-pass case.
- * We process the equivalent of one fully interleaved MCU row ("iMCU" row)
- * per call, ie, v_samp_factor block rows for each component in the image.
- * This amount of data is read from the source buffer, DCT'd and quantized,
- * and saved into the virtual arrays.  We also generate suitable dummy blocks
- * as needed at the right and lower edges.  (The dummy blocks are constructed
- * in the virtual arrays, which have been padded appropriately.)  This makes
- * it possible for subsequent passes not to worry about real vs. dummy blocks.
- *
- * We must also emit the data to the entropy encoder.  This is conveniently
- * done by calling compress_output() after we've loaded the current strip
- * of the virtual arrays.
- *
- * NB: input_buf contains a plane for each component in image.  All
- * components are DCT'd and loaded into the virtual arrays in this pass.
- * However, it may be that only a subset of the components are emitted to
- * the entropy encoder during this first pass; be careful about looking
- * at the scan-dependent variables (MCU dimensions, etc).
- */
-
-METHODDEF(boolean)
-compress_first_pass (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
-{
-  my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-  JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1;
-  JDIMENSION blocks_across, MCUs_across, MCUindex;
-  int bi, ci, h_samp_factor, block_row, block_rows, ndummy;
-  JCOEF lastDC;
-  jpeg_component_info *compptr;
-  JBLOCKARRAY buffer;
-  JBLOCKROW thisblockrow, lastblockrow;
-
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    /* Align the virtual buffer for this component. */
-    buffer = (*cinfo->mem->access_virt_barray)
-      ((j_common_ptr) cinfo, coef->whole_image[ci],
-       coef->iMCU_row_num * compptr->v_samp_factor,
-       (JDIMENSION) compptr->v_samp_factor, TRUE);
-    /* Count non-dummy DCT block rows in this iMCU row. */
-    if (coef->iMCU_row_num < last_iMCU_row)
-      block_rows = compptr->v_samp_factor;
-    else {
-      /* NB: can't use last_row_height here, since may not be set! */
-      block_rows = (int) (compptr->height_in_blocks % compptr->v_samp_factor);
-      if (block_rows == 0) block_rows = compptr->v_samp_factor;
-    }
-    blocks_across = compptr->width_in_blocks;
-    h_samp_factor = compptr->h_samp_factor;
-    /* Count number of dummy blocks to be added at the right margin. */
-    ndummy = (int) (blocks_across % h_samp_factor);
-    if (ndummy > 0)
-      ndummy = h_samp_factor - ndummy;
-    /* Perform DCT for all non-dummy blocks in this iMCU row.  Each call
-     * on forward_DCT processes a complete horizontal row of DCT blocks.
-     */
-    for (block_row = 0; block_row < block_rows; block_row++) {
-      thisblockrow = buffer[block_row];
-      (*cinfo->fdct->forward_DCT) (cinfo, compptr,
-				   input_buf[ci], thisblockrow,
-				   (JDIMENSION) (block_row * DCTSIZE),
-				   (JDIMENSION) 0, blocks_across);
-      if (ndummy > 0) {
-	/* Create dummy blocks at the right edge of the image. */
-	thisblockrow += blocks_across; /* => first dummy block */
-	jzero_far((void FAR *) thisblockrow, ndummy * SIZEOF(JBLOCK));
-	lastDC = thisblockrow[-1][0];
-	for (bi = 0; bi < ndummy; bi++) {
-	  thisblockrow[bi][0] = lastDC;
-	}
-      }
-    }
-    /* If at end of image, create dummy block rows as needed.
-     * The tricky part here is that within each MCU, we want the DC values
-     * of the dummy blocks to match the last real block's DC value.
-     * This squeezes a few more bytes out of the resulting file...
-     */
-    if (coef->iMCU_row_num == last_iMCU_row) {
-      blocks_across += ndummy;	/* include lower right corner */
-      MCUs_across = blocks_across / h_samp_factor;
-      for (block_row = block_rows; block_row < compptr->v_samp_factor;
-	   block_row++) {
-	thisblockrow = buffer[block_row];
-	lastblockrow = buffer[block_row-1];
-	jzero_far((void FAR *) thisblockrow,
-		  (size_t) (blocks_across * SIZEOF(JBLOCK)));
-	for (MCUindex = 0; MCUindex < MCUs_across; MCUindex++) {
-	  lastDC = lastblockrow[h_samp_factor-1][0];
-	  for (bi = 0; bi < h_samp_factor; bi++) {
-	    thisblockrow[bi][0] = lastDC;
-	  }
-	  thisblockrow += h_samp_factor; /* advance to next MCU in row */
-	  lastblockrow += h_samp_factor;
-	}
-      }
-    }
-  }
-  /* NB: compress_output will increment iMCU_row_num if successful.
-   * A suspension return will result in redoing all the work above next time.
-   */
-
-  /* Emit data to the entropy encoder, sharing code with subsequent passes */
-  return compress_output(cinfo, input_buf);
-}
-
-
-/*
- * Process some data in subsequent passes of a multi-pass case.
- * We process the equivalent of one fully interleaved MCU row ("iMCU" row)
- * per call, ie, v_samp_factor block rows for each component in the scan.
- * The data is obtained from the virtual arrays and fed to the entropy coder.
- * Returns TRUE if the iMCU row is completed, FALSE if suspended.
- *
- * NB: input_buf is ignored; it is likely to be a NULL pointer.
- */
-
-METHODDEF(boolean)
-compress_output (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
-{
-  my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-  JDIMENSION MCU_col_num;	/* index of current MCU within row */
-  int blkn, ci, xindex, yindex, yoffset;
-  JDIMENSION start_col;
-  JBLOCKARRAY buffer[MAX_COMPS_IN_SCAN];
-  JBLOCKROW buffer_ptr;
-  jpeg_component_info *compptr;
-
-  /* Align the virtual buffers for the components used in this scan.
-   * NB: during first pass, this is safe only because the buffers will
-   * already be aligned properly, so jmemmgr.c won't need to do any I/O.
-   */
-  for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-    compptr = cinfo->cur_comp_info[ci];
-    buffer[ci] = (*cinfo->mem->access_virt_barray)
-      ((j_common_ptr) cinfo, coef->whole_image[compptr->component_index],
-       coef->iMCU_row_num * compptr->v_samp_factor,
-       (JDIMENSION) compptr->v_samp_factor, FALSE);
-  }
-
-  /* Loop to process one whole iMCU row */
-  for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row;
-       yoffset++) {
-    for (MCU_col_num = coef->mcu_ctr; MCU_col_num < cinfo->MCUs_per_row;
-	 MCU_col_num++) {
-      /* Construct list of pointers to DCT blocks belonging to this MCU */
-      blkn = 0;			/* index of current DCT block within MCU */
-      for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-	compptr = cinfo->cur_comp_info[ci];
-	start_col = MCU_col_num * compptr->MCU_width;
-	for (yindex = 0; yindex < compptr->MCU_height; yindex++) {
-	  buffer_ptr = buffer[ci][yindex+yoffset] + start_col;
-	  for (xindex = 0; xindex < compptr->MCU_width; xindex++) {
-	    coef->MCU_buffer[blkn++] = buffer_ptr++;
-	  }
-	}
-      }
-      /* Try to write the MCU. */
-      if (! (*cinfo->entropy->encode_mcu) (cinfo, coef->MCU_buffer)) {
-	/* Suspension forced; update state counters and exit */
-	coef->MCU_vert_offset = yoffset;
-	coef->mcu_ctr = MCU_col_num;
-	return FALSE;
-      }
-    }
-    /* Completed an MCU row, but perhaps not an iMCU row */
-    coef->mcu_ctr = 0;
-  }
-  /* Completed the iMCU row, advance counters for next one */
-  coef->iMCU_row_num++;
-  start_iMCU_row(cinfo);
-  return TRUE;
-}
-
-#endif /* FULL_COEF_BUFFER_SUPPORTED */
-
-
-/*
- * Initialize coefficient buffer controller.
- */
-
-GLOBAL(void)
-jinit_c_coef_controller (j_compress_ptr cinfo, boolean need_full_buffer)
-{
-  my_coef_ptr coef;
-
-  coef = (my_coef_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_coef_controller));
-  cinfo->coef = (struct jpeg_c_coef_controller *) coef;
-  coef->pub.start_pass = start_pass_coef;
-
-  /* Create the coefficient buffer. */
-  if (need_full_buffer) {
-#ifdef FULL_COEF_BUFFER_SUPPORTED
-    /* Allocate a full-image virtual array for each component, */
-    /* padded to a multiple of samp_factor DCT blocks in each direction. */
-    int ci;
-    jpeg_component_info *compptr;
-
-    for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-	 ci++, compptr++) {
-      coef->whole_image[ci] = (*cinfo->mem->request_virt_barray)
-	((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE,
-	 (JDIMENSION) jround_up((long) compptr->width_in_blocks,
-				(long) compptr->h_samp_factor),
-	 (JDIMENSION) jround_up((long) compptr->height_in_blocks,
-				(long) compptr->v_samp_factor),
-	 (JDIMENSION) compptr->v_samp_factor);
-    }
-#else
-    ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-#endif
-  } else {
-    /* We only need a single-MCU buffer. */
-    JBLOCKROW buffer;
-    int i;
-
-    buffer = (JBLOCKROW)
-      (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				  C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK));
-    for (i = 0; i < C_MAX_BLOCKS_IN_MCU; i++) {
-      coef->MCU_buffer[i] = buffer + i;
-    }
-    coef->whole_image[0] = NULL; /* flag for no virtual arrays */
-  }
-}
diff --git a/src/3rdparty/libjpeg/jccolor.c b/src/3rdparty/libjpeg/jccolor.c
deleted file mode 100644
index 0a8a4b5d1..000000000
--- a/src/3rdparty/libjpeg/jccolor.c
+++ /dev/null
@@ -1,459 +0,0 @@
-/*
- * jccolor.c
- *
- * Copyright (C) 1991-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains input colorspace conversion routines.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/* Private subobject */
-
-typedef struct {
-  struct jpeg_color_converter pub; /* public fields */
-
-  /* Private state for RGB->YCC conversion */
-  INT32 * rgb_ycc_tab;		/* => table for RGB to YCbCr conversion */
-} my_color_converter;
-
-typedef my_color_converter * my_cconvert_ptr;
-
-
-/**************** RGB -> YCbCr conversion: most common case **************/
-
-/*
- * YCbCr is defined per CCIR 601-1, except that Cb and Cr are
- * normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5.
- * The conversion equations to be implemented are therefore
- *	Y  =  0.29900 * R + 0.58700 * G + 0.11400 * B
- *	Cb = -0.16874 * R - 0.33126 * G + 0.50000 * B  + CENTERJSAMPLE
- *	Cr =  0.50000 * R - 0.41869 * G - 0.08131 * B  + CENTERJSAMPLE
- * (These numbers are derived from TIFF 6.0 section 21, dated 3-June-92.)
- * Note: older versions of the IJG code used a zero offset of MAXJSAMPLE/2,
- * rather than CENTERJSAMPLE, for Cb and Cr.  This gave equal positive and
- * negative swings for Cb/Cr, but meant that grayscale values (Cb=Cr=0)
- * were not represented exactly.  Now we sacrifice exact representation of
- * maximum red and maximum blue in order to get exact grayscales.
- *
- * To avoid floating-point arithmetic, we represent the fractional constants
- * as integers scaled up by 2^16 (about 4 digits precision); we have to divide
- * the products by 2^16, with appropriate rounding, to get the correct answer.
- *
- * For even more speed, we avoid doing any multiplications in the inner loop
- * by precalculating the constants times R,G,B for all possible values.
- * For 8-bit JSAMPLEs this is very reasonable (only 256 entries per table);
- * for 12-bit samples it is still acceptable.  It's not very reasonable for
- * 16-bit samples, but if you want lossless storage you shouldn't be changing
- * colorspace anyway.
- * The CENTERJSAMPLE offsets and the rounding fudge-factor of 0.5 are included
- * in the tables to save adding them separately in the inner loop.
- */
-
-#define SCALEBITS	16	/* speediest right-shift on some machines */
-#define CBCR_OFFSET	((INT32) CENTERJSAMPLE << SCALEBITS)
-#define ONE_HALF	((INT32) 1 << (SCALEBITS-1))
-#define FIX(x)		((INT32) ((x) * (1L<<SCALEBITS) + 0.5))
-
-/* We allocate one big table and divide it up into eight parts, instead of
- * doing eight alloc_small requests.  This lets us use a single table base
- * address, which can be held in a register in the inner loops on many
- * machines (more than can hold all eight addresses, anyway).
- */
-
-#define R_Y_OFF		0			/* offset to R => Y section */
-#define G_Y_OFF		(1*(MAXJSAMPLE+1))	/* offset to G => Y section */
-#define B_Y_OFF		(2*(MAXJSAMPLE+1))	/* etc. */
-#define R_CB_OFF	(3*(MAXJSAMPLE+1))
-#define G_CB_OFF	(4*(MAXJSAMPLE+1))
-#define B_CB_OFF	(5*(MAXJSAMPLE+1))
-#define R_CR_OFF	B_CB_OFF		/* B=>Cb, R=>Cr are the same */
-#define G_CR_OFF	(6*(MAXJSAMPLE+1))
-#define B_CR_OFF	(7*(MAXJSAMPLE+1))
-#define TABLE_SIZE	(8*(MAXJSAMPLE+1))
-
-
-/*
- * Initialize for RGB->YCC colorspace conversion.
- */
-
-METHODDEF(void)
-rgb_ycc_start (j_compress_ptr cinfo)
-{
-  my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
-  INT32 * rgb_ycc_tab;
-  INT32 i;
-
-  /* Allocate and fill in the conversion tables. */
-  cconvert->rgb_ycc_tab = rgb_ycc_tab = (INT32 *)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				(TABLE_SIZE * SIZEOF(INT32)));
-
-  for (i = 0; i <= MAXJSAMPLE; i++) {
-    rgb_ycc_tab[i+R_Y_OFF] = FIX(0.29900) * i;
-    rgb_ycc_tab[i+G_Y_OFF] = FIX(0.58700) * i;
-    rgb_ycc_tab[i+B_Y_OFF] = FIX(0.11400) * i     + ONE_HALF;
-    rgb_ycc_tab[i+R_CB_OFF] = (-FIX(0.16874)) * i;
-    rgb_ycc_tab[i+G_CB_OFF] = (-FIX(0.33126)) * i;
-    /* We use a rounding fudge-factor of 0.5-epsilon for Cb and Cr.
-     * This ensures that the maximum output will round to MAXJSAMPLE
-     * not MAXJSAMPLE+1, and thus that we don't have to range-limit.
-     */
-    rgb_ycc_tab[i+B_CB_OFF] = FIX(0.50000) * i    + CBCR_OFFSET + ONE_HALF-1;
-/*  B=>Cb and R=>Cr tables are the same
-    rgb_ycc_tab[i+R_CR_OFF] = FIX(0.50000) * i    + CBCR_OFFSET + ONE_HALF-1;
-*/
-    rgb_ycc_tab[i+G_CR_OFF] = (-FIX(0.41869)) * i;
-    rgb_ycc_tab[i+B_CR_OFF] = (-FIX(0.08131)) * i;
-  }
-}
-
-
-/*
- * Convert some rows of samples to the JPEG colorspace.
- *
- * Note that we change from the application's interleaved-pixel format
- * to our internal noninterleaved, one-plane-per-component format.
- * The input buffer is therefore three times as wide as the output buffer.
- *
- * A starting row offset is provided only for the output buffer.  The caller
- * can easily adjust the passed input_buf value to accommodate any row
- * offset required on that side.
- */
-
-METHODDEF(void)
-rgb_ycc_convert (j_compress_ptr cinfo,
-		 JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
-		 JDIMENSION output_row, int num_rows)
-{
-  my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
-  register int r, g, b;
-  register INT32 * ctab = cconvert->rgb_ycc_tab;
-  register JSAMPROW inptr;
-  register JSAMPROW outptr0, outptr1, outptr2;
-  register JDIMENSION col;
-  JDIMENSION num_cols = cinfo->image_width;
-
-  while (--num_rows >= 0) {
-    inptr = *input_buf++;
-    outptr0 = output_buf[0][output_row];
-    outptr1 = output_buf[1][output_row];
-    outptr2 = output_buf[2][output_row];
-    output_row++;
-    for (col = 0; col < num_cols; col++) {
-      r = GETJSAMPLE(inptr[RGB_RED]);
-      g = GETJSAMPLE(inptr[RGB_GREEN]);
-      b = GETJSAMPLE(inptr[RGB_BLUE]);
-      inptr += RGB_PIXELSIZE;
-      /* If the inputs are 0..MAXJSAMPLE, the outputs of these equations
-       * must be too; we do not need an explicit range-limiting operation.
-       * Hence the value being shifted is never negative, and we don't
-       * need the general RIGHT_SHIFT macro.
-       */
-      /* Y */
-      outptr0[col] = (JSAMPLE)
-		((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF])
-		 >> SCALEBITS);
-      /* Cb */
-      outptr1[col] = (JSAMPLE)
-		((ctab[r+R_CB_OFF] + ctab[g+G_CB_OFF] + ctab[b+B_CB_OFF])
-		 >> SCALEBITS);
-      /* Cr */
-      outptr2[col] = (JSAMPLE)
-		((ctab[r+R_CR_OFF] + ctab[g+G_CR_OFF] + ctab[b+B_CR_OFF])
-		 >> SCALEBITS);
-    }
-  }
-}
-
-
-/**************** Cases other than RGB -> YCbCr **************/
-
-
-/*
- * Convert some rows of samples to the JPEG colorspace.
- * This version handles RGB->grayscale conversion, which is the same
- * as the RGB->Y portion of RGB->YCbCr.
- * We assume rgb_ycc_start has been called (we only use the Y tables).
- */
-
-METHODDEF(void)
-rgb_gray_convert (j_compress_ptr cinfo,
-		  JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
-		  JDIMENSION output_row, int num_rows)
-{
-  my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
-  register int r, g, b;
-  register INT32 * ctab = cconvert->rgb_ycc_tab;
-  register JSAMPROW inptr;
-  register JSAMPROW outptr;
-  register JDIMENSION col;
-  JDIMENSION num_cols = cinfo->image_width;
-
-  while (--num_rows >= 0) {
-    inptr = *input_buf++;
-    outptr = output_buf[0][output_row];
-    output_row++;
-    for (col = 0; col < num_cols; col++) {
-      r = GETJSAMPLE(inptr[RGB_RED]);
-      g = GETJSAMPLE(inptr[RGB_GREEN]);
-      b = GETJSAMPLE(inptr[RGB_BLUE]);
-      inptr += RGB_PIXELSIZE;
-      /* Y */
-      outptr[col] = (JSAMPLE)
-		((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF])
-		 >> SCALEBITS);
-    }
-  }
-}
-
-
-/*
- * Convert some rows of samples to the JPEG colorspace.
- * This version handles Adobe-style CMYK->YCCK conversion,
- * where we convert R=1-C, G=1-M, and B=1-Y to YCbCr using the same
- * conversion as above, while passing K (black) unchanged.
- * We assume rgb_ycc_start has been called.
- */
-
-METHODDEF(void)
-cmyk_ycck_convert (j_compress_ptr cinfo,
-		   JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
-		   JDIMENSION output_row, int num_rows)
-{
-  my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
-  register int r, g, b;
-  register INT32 * ctab = cconvert->rgb_ycc_tab;
-  register JSAMPROW inptr;
-  register JSAMPROW outptr0, outptr1, outptr2, outptr3;
-  register JDIMENSION col;
-  JDIMENSION num_cols = cinfo->image_width;
-
-  while (--num_rows >= 0) {
-    inptr = *input_buf++;
-    outptr0 = output_buf[0][output_row];
-    outptr1 = output_buf[1][output_row];
-    outptr2 = output_buf[2][output_row];
-    outptr3 = output_buf[3][output_row];
-    output_row++;
-    for (col = 0; col < num_cols; col++) {
-      r = MAXJSAMPLE - GETJSAMPLE(inptr[0]);
-      g = MAXJSAMPLE - GETJSAMPLE(inptr[1]);
-      b = MAXJSAMPLE - GETJSAMPLE(inptr[2]);
-      /* K passes through as-is */
-      outptr3[col] = inptr[3];	/* don't need GETJSAMPLE here */
-      inptr += 4;
-      /* If the inputs are 0..MAXJSAMPLE, the outputs of these equations
-       * must be too; we do not need an explicit range-limiting operation.
-       * Hence the value being shifted is never negative, and we don't
-       * need the general RIGHT_SHIFT macro.
-       */
-      /* Y */
-      outptr0[col] = (JSAMPLE)
-		((ctab[r+R_Y_OFF] + ctab[g+G_Y_OFF] + ctab[b+B_Y_OFF])
-		 >> SCALEBITS);
-      /* Cb */
-      outptr1[col] = (JSAMPLE)
-		((ctab[r+R_CB_OFF] + ctab[g+G_CB_OFF] + ctab[b+B_CB_OFF])
-		 >> SCALEBITS);
-      /* Cr */
-      outptr2[col] = (JSAMPLE)
-		((ctab[r+R_CR_OFF] + ctab[g+G_CR_OFF] + ctab[b+B_CR_OFF])
-		 >> SCALEBITS);
-    }
-  }
-}
-
-
-/*
- * Convert some rows of samples to the JPEG colorspace.
- * This version handles grayscale output with no conversion.
- * The source can be either plain grayscale or YCbCr (since Y == gray).
- */
-
-METHODDEF(void)
-grayscale_convert (j_compress_ptr cinfo,
-		   JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
-		   JDIMENSION output_row, int num_rows)
-{
-  register JSAMPROW inptr;
-  register JSAMPROW outptr;
-  register JDIMENSION col;
-  JDIMENSION num_cols = cinfo->image_width;
-  int instride = cinfo->input_components;
-
-  while (--num_rows >= 0) {
-    inptr = *input_buf++;
-    outptr = output_buf[0][output_row];
-    output_row++;
-    for (col = 0; col < num_cols; col++) {
-      outptr[col] = inptr[0];	/* don't need GETJSAMPLE() here */
-      inptr += instride;
-    }
-  }
-}
-
-
-/*
- * Convert some rows of samples to the JPEG colorspace.
- * This version handles multi-component colorspaces without conversion.
- * We assume input_components == num_components.
- */
-
-METHODDEF(void)
-null_convert (j_compress_ptr cinfo,
-	      JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
-	      JDIMENSION output_row, int num_rows)
-{
-  register JSAMPROW inptr;
-  register JSAMPROW outptr;
-  register JDIMENSION col;
-  register int ci;
-  int nc = cinfo->num_components;
-  JDIMENSION num_cols = cinfo->image_width;
-
-  while (--num_rows >= 0) {
-    /* It seems fastest to make a separate pass for each component. */
-    for (ci = 0; ci < nc; ci++) {
-      inptr = *input_buf;
-      outptr = output_buf[ci][output_row];
-      for (col = 0; col < num_cols; col++) {
-	outptr[col] = inptr[ci]; /* don't need GETJSAMPLE() here */
-	inptr += nc;
-      }
-    }
-    input_buf++;
-    output_row++;
-  }
-}
-
-
-/*
- * Empty method for start_pass.
- */
-
-METHODDEF(void)
-null_method (j_compress_ptr cinfo)
-{
-  /* no work needed */
-}
-
-
-/*
- * Module initialization routine for input colorspace conversion.
- */
-
-GLOBAL(void)
-jinit_color_converter (j_compress_ptr cinfo)
-{
-  my_cconvert_ptr cconvert;
-
-  cconvert = (my_cconvert_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_color_converter));
-  cinfo->cconvert = (struct jpeg_color_converter *) cconvert;
-  /* set start_pass to null method until we find out differently */
-  cconvert->pub.start_pass = null_method;
-
-  /* Make sure input_components agrees with in_color_space */
-  switch (cinfo->in_color_space) {
-  case JCS_GRAYSCALE:
-    if (cinfo->input_components != 1)
-      ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE);
-    break;
-
-  case JCS_RGB:
-#if RGB_PIXELSIZE != 3
-    if (cinfo->input_components != RGB_PIXELSIZE)
-      ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE);
-    break;
-#endif /* else share code with YCbCr */
-
-  case JCS_YCbCr:
-    if (cinfo->input_components != 3)
-      ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE);
-    break;
-
-  case JCS_CMYK:
-  case JCS_YCCK:
-    if (cinfo->input_components != 4)
-      ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE);
-    break;
-
-  default:			/* JCS_UNKNOWN can be anything */
-    if (cinfo->input_components < 1)
-      ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE);
-    break;
-  }
-
-  /* Check num_components, set conversion method based on requested space */
-  switch (cinfo->jpeg_color_space) {
-  case JCS_GRAYSCALE:
-    if (cinfo->num_components != 1)
-      ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-    if (cinfo->in_color_space == JCS_GRAYSCALE)
-      cconvert->pub.color_convert = grayscale_convert;
-    else if (cinfo->in_color_space == JCS_RGB) {
-      cconvert->pub.start_pass = rgb_ycc_start;
-      cconvert->pub.color_convert = rgb_gray_convert;
-    } else if (cinfo->in_color_space == JCS_YCbCr)
-      cconvert->pub.color_convert = grayscale_convert;
-    else
-      ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
-    break;
-
-  case JCS_RGB:
-    if (cinfo->num_components != 3)
-      ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-    if (cinfo->in_color_space == JCS_RGB && RGB_PIXELSIZE == 3)
-      cconvert->pub.color_convert = null_convert;
-    else
-      ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
-    break;
-
-  case JCS_YCbCr:
-    if (cinfo->num_components != 3)
-      ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-    if (cinfo->in_color_space == JCS_RGB) {
-      cconvert->pub.start_pass = rgb_ycc_start;
-      cconvert->pub.color_convert = rgb_ycc_convert;
-    } else if (cinfo->in_color_space == JCS_YCbCr)
-      cconvert->pub.color_convert = null_convert;
-    else
-      ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
-    break;
-
-  case JCS_CMYK:
-    if (cinfo->num_components != 4)
-      ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-    if (cinfo->in_color_space == JCS_CMYK)
-      cconvert->pub.color_convert = null_convert;
-    else
-      ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
-    break;
-
-  case JCS_YCCK:
-    if (cinfo->num_components != 4)
-      ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-    if (cinfo->in_color_space == JCS_CMYK) {
-      cconvert->pub.start_pass = rgb_ycc_start;
-      cconvert->pub.color_convert = cmyk_ycck_convert;
-    } else if (cinfo->in_color_space == JCS_YCCK)
-      cconvert->pub.color_convert = null_convert;
-    else
-      ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
-    break;
-
-  default:			/* allow null conversion of JCS_UNKNOWN */
-    if (cinfo->jpeg_color_space != cinfo->in_color_space ||
-	cinfo->num_components != cinfo->input_components)
-      ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
-    cconvert->pub.color_convert = null_convert;
-    break;
-  }
-}
diff --git a/src/3rdparty/libjpeg/jcdctmgr.c b/src/3rdparty/libjpeg/jcdctmgr.c
deleted file mode 100644
index 6e3461a14..000000000
--- a/src/3rdparty/libjpeg/jcdctmgr.c
+++ /dev/null
@@ -1,387 +0,0 @@
-/*
- * jcdctmgr.c
- *
- * Copyright (C) 1994-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains the forward-DCT management logic.
- * This code selects a particular DCT implementation to be used,
- * and it performs related housekeeping chores including coefficient
- * quantization.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jdct.h"		/* Private declarations for DCT subsystem */
-
-
-/* Private subobject for this module */
-
-typedef struct {
-  struct jpeg_forward_dct pub;	/* public fields */
-
-  /* Pointer to the DCT routine actually in use */
-  forward_DCT_method_ptr do_dct;
-
-  /* The actual post-DCT divisors --- not identical to the quant table
-   * entries, because of scaling (especially for an unnormalized DCT).
-   * Each table is given in normal array order.
-   */
-  DCTELEM * divisors[NUM_QUANT_TBLS];
-
-#ifdef DCT_FLOAT_SUPPORTED
-  /* Same as above for the floating-point case. */
-  float_DCT_method_ptr do_float_dct;
-  FAST_FLOAT * float_divisors[NUM_QUANT_TBLS];
-#endif
-} my_fdct_controller;
-
-typedef my_fdct_controller * my_fdct_ptr;
-
-
-/*
- * Initialize for a processing pass.
- * Verify that all referenced Q-tables are present, and set up
- * the divisor table for each one.
- * In the current implementation, DCT of all components is done during
- * the first pass, even if only some components will be output in the
- * first scan.  Hence all components should be examined here.
- */
-
-METHODDEF(void)
-start_pass_fdctmgr (j_compress_ptr cinfo)
-{
-  my_fdct_ptr fdct = (my_fdct_ptr) cinfo->fdct;
-  int ci, qtblno, i;
-  jpeg_component_info *compptr;
-  JTQUANT_TBL * qtbl;
-  DCTELEM * dtbl;
-
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    qtblno = compptr->quant_tbl_no;
-    /* Make sure specified quantization table is present */
-    if (qtblno < 0 || qtblno >= NUM_QUANT_TBLS ||
-	cinfo->quant_tbl_ptrs[qtblno] == NULL)
-      ERREXIT1(cinfo, JERR_NO_QUANT_TABLE, qtblno);
-    qtbl = cinfo->quant_tbl_ptrs[qtblno];
-    /* Compute divisors for this quant table */
-    /* We may do this more than once for same table, but it's not a big deal */
-    switch (cinfo->dct_method) {
-#ifdef DCT_ISLOW_SUPPORTED
-    case JDCT_ISLOW:
-      /* For LL&M IDCT method, divisors are equal to raw quantization
-       * coefficients multiplied by 8 (to counteract scaling).
-       */
-      if (fdct->divisors[qtblno] == NULL) {
-	fdct->divisors[qtblno] = (DCTELEM *)
-	  (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				      DCTSIZE2 * SIZEOF(DCTELEM));
-      }
-      dtbl = fdct->divisors[qtblno];
-      for (i = 0; i < DCTSIZE2; i++) {
-	dtbl[i] = ((DCTELEM) qtbl->quantval[i]) << 3;
-      }
-      break;
-#endif
-#ifdef DCT_IFAST_SUPPORTED
-    case JDCT_IFAST:
-      {
-	/* For AA&N IDCT method, divisors are equal to quantization
-	 * coefficients scaled by scalefactor[row]*scalefactor[col], where
-	 *   scalefactor[0] = 1
-	 *   scalefactor[k] = cos(k*PI/16) * sqrt(2)    for k=1..7
-	 * We apply a further scale factor of 8.
-	 */
-#define CONST_BITS 14
-	static const INT16 aanscales[DCTSIZE2] = {
-	  /* precomputed values scaled up by 14 bits */
-	  16384, 22725, 21407, 19266, 16384, 12873,  8867,  4520,
-	  22725, 31521, 29692, 26722, 22725, 17855, 12299,  6270,
-	  21407, 29692, 27969, 25172, 21407, 16819, 11585,  5906,
-	  19266, 26722, 25172, 22654, 19266, 15137, 10426,  5315,
-	  16384, 22725, 21407, 19266, 16384, 12873,  8867,  4520,
-	  12873, 17855, 16819, 15137, 12873, 10114,  6967,  3552,
-	   8867, 12299, 11585, 10426,  8867,  6967,  4799,  2446,
-	   4520,  6270,  5906,  5315,  4520,  3552,  2446,  1247
-	};
-	SHIFT_TEMPS
-
-	if (fdct->divisors[qtblno] == NULL) {
-	  fdct->divisors[qtblno] = (DCTELEM *)
-	    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-					DCTSIZE2 * SIZEOF(DCTELEM));
-	}
-	dtbl = fdct->divisors[qtblno];
-	for (i = 0; i < DCTSIZE2; i++) {
-	  dtbl[i] = (DCTELEM)
-	    DESCALE(MULTIPLY16V16((INT32) qtbl->quantval[i],
-				  (INT32) aanscales[i]),
-		    CONST_BITS-3);
-	}
-      }
-      break;
-#endif
-#ifdef DCT_FLOAT_SUPPORTED
-    case JDCT_FLOAT:
-      {
-	/* For float AA&N IDCT method, divisors are equal to quantization
-	 * coefficients scaled by scalefactor[row]*scalefactor[col], where
-	 *   scalefactor[0] = 1
-	 *   scalefactor[k] = cos(k*PI/16) * sqrt(2)    for k=1..7
-	 * We apply a further scale factor of 8.
-	 * What's actually stored is 1/divisor so that the inner loop can
-	 * use a multiplication rather than a division.
-	 */
-	FAST_FLOAT * fdtbl;
-	int row, col;
-	static const double aanscalefactor[DCTSIZE] = {
-	  1.0, 1.387039845, 1.306562965, 1.175875602,
-	  1.0, 0.785694958, 0.541196100, 0.275899379
-	};
-
-	if (fdct->float_divisors[qtblno] == NULL) {
-	  fdct->float_divisors[qtblno] = (FAST_FLOAT *)
-	    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-					DCTSIZE2 * SIZEOF(FAST_FLOAT));
-	}
-	fdtbl = fdct->float_divisors[qtblno];
-	i = 0;
-	for (row = 0; row < DCTSIZE; row++) {
-	  for (col = 0; col < DCTSIZE; col++) {
-	    fdtbl[i] = (FAST_FLOAT)
-	      (1.0 / (((double) qtbl->quantval[i] *
-		       aanscalefactor[row] * aanscalefactor[col] * 8.0)));
-	    i++;
-	  }
-	}
-      }
-      break;
-#endif
-    default:
-      ERREXIT(cinfo, JERR_NOT_COMPILED);
-      break;
-    }
-  }
-}
-
-
-/*
- * Perform forward DCT on one or more blocks of a component.
- *
- * The input samples are taken from the sample_data[] array starting at
- * position start_row/start_col, and moving to the right for any additional
- * blocks. The quantized coefficients are returned in coef_blocks[].
- */
-
-METHODDEF(void)
-forward_DCT (j_compress_ptr cinfo, jpeg_component_info * compptr,
-	     JSAMPARRAY sample_data, JBLOCKROW coef_blocks,
-	     JDIMENSION start_row, JDIMENSION start_col,
-	     JDIMENSION num_blocks)
-/* This version is used for integer DCT implementations. */
-{
-  /* This routine is heavily used, so it's worth coding it tightly. */
-  my_fdct_ptr fdct = (my_fdct_ptr) cinfo->fdct;
-  forward_DCT_method_ptr do_dct = fdct->do_dct;
-  DCTELEM * divisors = fdct->divisors[compptr->quant_tbl_no];
-  DCTELEM workspace[DCTSIZE2];	/* work area for FDCT subroutine */
-  JDIMENSION bi;
-
-  sample_data += start_row;	/* fold in the vertical offset once */
-
-  for (bi = 0; bi < num_blocks; bi++, start_col += DCTSIZE) {
-    /* Load data into workspace, applying unsigned->signed conversion */
-    { register DCTELEM *workspaceptr;
-      register JSAMPROW elemptr;
-      register int elemr;
-
-      workspaceptr = workspace;
-      for (elemr = 0; elemr < DCTSIZE; elemr++) {
-	elemptr = sample_data[elemr] + start_col;
-#if DCTSIZE == 8		/* unroll the inner loop */
-	*workspaceptr++ = GETJSAMPLE(*elemptr++) - CENTERJSAMPLE;
-	*workspaceptr++ = GETJSAMPLE(*elemptr++) - CENTERJSAMPLE;
-	*workspaceptr++ = GETJSAMPLE(*elemptr++) - CENTERJSAMPLE;
-	*workspaceptr++ = GETJSAMPLE(*elemptr++) - CENTERJSAMPLE;
-	*workspaceptr++ = GETJSAMPLE(*elemptr++) - CENTERJSAMPLE;
-	*workspaceptr++ = GETJSAMPLE(*elemptr++) - CENTERJSAMPLE;
-	*workspaceptr++ = GETJSAMPLE(*elemptr++) - CENTERJSAMPLE;
-	*workspaceptr++ = GETJSAMPLE(*elemptr++) - CENTERJSAMPLE;
-#else
-	{ register int elemc;
-	  for (elemc = DCTSIZE; elemc > 0; elemc--) {
-	    *workspaceptr++ = GETJSAMPLE(*elemptr++) - CENTERJSAMPLE;
-	  }
-	}
-#endif
-      }
-    }
-
-    /* Perform the DCT */
-    (*do_dct) (workspace);
-
-    /* Quantize/descale the coefficients, and store into coef_blocks[] */
-    { register DCTELEM temp, qval;
-      register int i;
-      register JCOEFPTR output_ptr = coef_blocks[bi];
-
-      for (i = 0; i < DCTSIZE2; i++) {
-	qval = divisors[i];
-	temp = workspace[i];
-	/* Divide the coefficient value by qval, ensuring proper rounding.
-	 * Since C does not specify the direction of rounding for negative
-	 * quotients, we have to force the dividend positive for portability.
-	 *
-	 * In most files, at least half of the output values will be zero
-	 * (at default quantization settings, more like three-quarters...)
-	 * so we should ensure that this case is fast.  On many machines,
-	 * a comparison is enough cheaper than a divide to make a special test
-	 * a win.  Since both inputs will be nonnegative, we need only test
-	 * for a < b to discover whether a/b is 0.
-	 * If your machine's division is fast enough, define FAST_DIVIDE.
-	 */
-#ifdef FAST_DIVIDE
-#define DIVIDE_BY(a,b)	a /= b
-#else
-#define DIVIDE_BY(a,b)	if (a >= b) a /= b; else a = 0
-#endif
-	if (temp < 0) {
-	  temp = -temp;
-	  temp += qval>>1;	/* for rounding */
-	  DIVIDE_BY(temp, qval);
-	  temp = -temp;
-	} else {
-	  temp += qval>>1;	/* for rounding */
-	  DIVIDE_BY(temp, qval);
-	}
-	output_ptr[i] = (JCOEF) temp;
-      }
-    }
-  }
-}
-
-
-#ifdef DCT_FLOAT_SUPPORTED
-
-METHODDEF(void)
-forward_DCT_float (j_compress_ptr cinfo, jpeg_component_info * compptr,
-		   JSAMPARRAY sample_data, JBLOCKROW coef_blocks,
-		   JDIMENSION start_row, JDIMENSION start_col,
-		   JDIMENSION num_blocks)
-/* This version is used for floating-point DCT implementations. */
-{
-  /* This routine is heavily used, so it's worth coding it tightly. */
-  my_fdct_ptr fdct = (my_fdct_ptr) cinfo->fdct;
-  float_DCT_method_ptr do_dct = fdct->do_float_dct;
-  FAST_FLOAT * divisors = fdct->float_divisors[compptr->quant_tbl_no];
-  FAST_FLOAT workspace[DCTSIZE2]; /* work area for FDCT subroutine */
-  JDIMENSION bi;
-
-  sample_data += start_row;	/* fold in the vertical offset once */
-
-  for (bi = 0; bi < num_blocks; bi++, start_col += DCTSIZE) {
-    /* Load data into workspace, applying unsigned->signed conversion */
-    { register FAST_FLOAT *workspaceptr;
-      register JSAMPROW elemptr;
-      register int elemr;
-
-      workspaceptr = workspace;
-      for (elemr = 0; elemr < DCTSIZE; elemr++) {
-	elemptr = sample_data[elemr] + start_col;
-#if DCTSIZE == 8		/* unroll the inner loop */
-	*workspaceptr++ = (FAST_FLOAT)(GETJSAMPLE(*elemptr++) - CENTERJSAMPLE);
-	*workspaceptr++ = (FAST_FLOAT)(GETJSAMPLE(*elemptr++) - CENTERJSAMPLE);
-	*workspaceptr++ = (FAST_FLOAT)(GETJSAMPLE(*elemptr++) - CENTERJSAMPLE);
-	*workspaceptr++ = (FAST_FLOAT)(GETJSAMPLE(*elemptr++) - CENTERJSAMPLE);
-	*workspaceptr++ = (FAST_FLOAT)(GETJSAMPLE(*elemptr++) - CENTERJSAMPLE);
-	*workspaceptr++ = (FAST_FLOAT)(GETJSAMPLE(*elemptr++) - CENTERJSAMPLE);
-	*workspaceptr++ = (FAST_FLOAT)(GETJSAMPLE(*elemptr++) - CENTERJSAMPLE);
-	*workspaceptr++ = (FAST_FLOAT)(GETJSAMPLE(*elemptr++) - CENTERJSAMPLE);
-#else
-	{ register int elemc;
-	  for (elemc = DCTSIZE; elemc > 0; elemc--) {
-	    *workspaceptr++ = (FAST_FLOAT)
-	      (GETJSAMPLE(*elemptr++) - CENTERJSAMPLE);
-	  }
-	}
-#endif
-      }
-    }
-
-    /* Perform the DCT */
-    (*do_dct) (workspace);
-
-    /* Quantize/descale the coefficients, and store into coef_blocks[] */
-    { register FAST_FLOAT temp;
-      register int i;
-      register JCOEFPTR output_ptr = coef_blocks[bi];
-
-      for (i = 0; i < DCTSIZE2; i++) {
-	/* Apply the quantization and scaling factor */
-	temp = workspace[i] * divisors[i];
-	/* Round to nearest integer.
-	 * Since C does not specify the direction of rounding for negative
-	 * quotients, we have to force the dividend positive for portability.
-	 * The maximum coefficient size is +-16K (for 12-bit data), so this
-	 * code should work for either 16-bit or 32-bit ints.
-	 */
-	output_ptr[i] = (JCOEF) ((int) (temp + (FAST_FLOAT) 16384.5) - 16384);
-      }
-    }
-  }
-}
-
-#endif /* DCT_FLOAT_SUPPORTED */
-
-
-/*
- * Initialize FDCT manager.
- */
-
-GLOBAL(void)
-jinit_forward_dct (j_compress_ptr cinfo)
-{
-  my_fdct_ptr fdct;
-  int i;
-
-  fdct = (my_fdct_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_fdct_controller));
-  cinfo->fdct = (struct jpeg_forward_dct *) fdct;
-  fdct->pub.start_pass = start_pass_fdctmgr;
-
-  switch (cinfo->dct_method) {
-#ifdef DCT_ISLOW_SUPPORTED
-  case JDCT_ISLOW:
-    fdct->pub.forward_DCT = forward_DCT;
-    fdct->do_dct = jpeg_fdct_islow;
-    break;
-#endif
-#ifdef DCT_IFAST_SUPPORTED
-  case JDCT_IFAST:
-    fdct->pub.forward_DCT = forward_DCT;
-    fdct->do_dct = jpeg_fdct_ifast;
-    break;
-#endif
-#ifdef DCT_FLOAT_SUPPORTED
-  case JDCT_FLOAT:
-    fdct->pub.forward_DCT = forward_DCT_float;
-    fdct->do_float_dct = jpeg_fdct_float;
-    break;
-#endif
-  default:
-    ERREXIT(cinfo, JERR_NOT_COMPILED);
-    break;
-  }
-
-  /* Mark divisor tables unallocated */
-  for (i = 0; i < NUM_QUANT_TBLS; i++) {
-    fdct->divisors[i] = NULL;
-#ifdef DCT_FLOAT_SUPPORTED
-    fdct->float_divisors[i] = NULL;
-#endif
-  }
-}
diff --git a/src/3rdparty/libjpeg/jchuff.c b/src/3rdparty/libjpeg/jchuff.c
deleted file mode 100644
index f23525054..000000000
--- a/src/3rdparty/libjpeg/jchuff.c
+++ /dev/null
@@ -1,909 +0,0 @@
-/*
- * jchuff.c
- *
- * Copyright (C) 1991-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains Huffman entropy encoding routines.
- *
- * Much of the complexity here has to do with supporting output suspension.
- * If the data destination module demands suspension, we want to be able to
- * back up to the start of the current MCU.  To do this, we copy state
- * variables into local working storage, and update them back to the
- * permanent JPEG objects only upon successful completion of an MCU.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jchuff.h"		/* Declarations shared with jcphuff.c */
-
-
-/* Expanded entropy encoder object for Huffman encoding.
- *
- * The savable_state subrecord contains fields that change within an MCU,
- * but must not be updated permanently until we complete the MCU.
- */
-
-typedef struct {
-  INT32 put_buffer;		/* current bit-accumulation buffer */
-  int put_bits;			/* # of bits now in it */
-  int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */
-} savable_state;
-
-/* This macro is to work around compilers with missing or broken
- * structure assignment.  You'll need to fix this code if you have
- * such a compiler and you change MAX_COMPS_IN_SCAN.
- */
-
-#ifndef NO_STRUCT_ASSIGN
-#define ASSIGN_STATE(dest,src)  ((dest) = (src))
-#else
-#if MAX_COMPS_IN_SCAN == 4
-#define ASSIGN_STATE(dest,src)  \
-	((dest).put_buffer = (src).put_buffer, \
-	 (dest).put_bits = (src).put_bits, \
-	 (dest).last_dc_val[0] = (src).last_dc_val[0], \
-	 (dest).last_dc_val[1] = (src).last_dc_val[1], \
-	 (dest).last_dc_val[2] = (src).last_dc_val[2], \
-	 (dest).last_dc_val[3] = (src).last_dc_val[3])
-#endif
-#endif
-
-
-typedef struct {
-  struct jpeg_entropy_encoder pub; /* public fields */
-
-  savable_state saved;		/* Bit buffer & DC state at start of MCU */
-
-  /* These fields are NOT loaded into local working state. */
-  unsigned int restarts_to_go;	/* MCUs left in this restart interval */
-  int next_restart_num;		/* next restart number to write (0-7) */
-
-  /* Pointers to derived tables (these workspaces have image lifespan) */
-  c_derived_tbl * dc_derived_tbls[NUM_HUFF_TBLS];
-  c_derived_tbl * ac_derived_tbls[NUM_HUFF_TBLS];
-
-#ifdef ENTROPY_OPT_SUPPORTED	/* Statistics tables for optimization */
-  long * dc_count_ptrs[NUM_HUFF_TBLS];
-  long * ac_count_ptrs[NUM_HUFF_TBLS];
-#endif
-} huff_entropy_encoder;
-
-typedef huff_entropy_encoder * huff_entropy_ptr;
-
-/* Working state while writing an MCU.
- * This struct contains all the fields that are needed by subroutines.
- */
-
-typedef struct {
-  JOCTET * next_output_byte;	/* => next byte to write in buffer */
-  size_t free_in_buffer;	/* # of byte spaces remaining in buffer */
-  savable_state cur;		/* Current bit buffer & DC state */
-  j_compress_ptr cinfo;		/* dump_buffer needs access to this */
-} working_state;
-
-
-/* Forward declarations */
-METHODDEF(boolean) encode_mcu_huff JPP((j_compress_ptr cinfo,
-					JBLOCKROW *MCU_data));
-METHODDEF(void) finish_pass_huff JPP((j_compress_ptr cinfo));
-#ifdef ENTROPY_OPT_SUPPORTED
-METHODDEF(boolean) encode_mcu_gather JPP((j_compress_ptr cinfo,
-					  JBLOCKROW *MCU_data));
-METHODDEF(void) finish_pass_gather JPP((j_compress_ptr cinfo));
-#endif
-
-
-/*
- * Initialize for a Huffman-compressed scan.
- * If gather_statistics is TRUE, we do not output anything during the scan,
- * just count the Huffman symbols used and generate Huffman code tables.
- */
-
-METHODDEF(void)
-start_pass_huff (j_compress_ptr cinfo, boolean gather_statistics)
-{
-  huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
-  int ci, dctbl, actbl;
-  jpeg_component_info * compptr;
-
-  if (gather_statistics) {
-#ifdef ENTROPY_OPT_SUPPORTED
-    entropy->pub.encode_mcu = encode_mcu_gather;
-    entropy->pub.finish_pass = finish_pass_gather;
-#else
-    ERREXIT(cinfo, JERR_NOT_COMPILED);
-#endif
-  } else {
-    entropy->pub.encode_mcu = encode_mcu_huff;
-    entropy->pub.finish_pass = finish_pass_huff;
-  }
-
-  for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-    compptr = cinfo->cur_comp_info[ci];
-    dctbl = compptr->dc_tbl_no;
-    actbl = compptr->ac_tbl_no;
-    if (gather_statistics) {
-#ifdef ENTROPY_OPT_SUPPORTED
-      /* Check for invalid table indexes */
-      /* (make_c_derived_tbl does this in the other path) */
-      if (dctbl < 0 || dctbl >= NUM_HUFF_TBLS)
-	ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, dctbl);
-      if (actbl < 0 || actbl >= NUM_HUFF_TBLS)
-	ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, actbl);
-      /* Allocate and zero the statistics tables */
-      /* Note that jpeg_gen_optimal_table expects 257 entries in each table! */
-      if (entropy->dc_count_ptrs[dctbl] == NULL)
-	entropy->dc_count_ptrs[dctbl] = (long *)
-	  (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				      257 * SIZEOF(long));
-      MEMZERO(entropy->dc_count_ptrs[dctbl], 257 * SIZEOF(long));
-      if (entropy->ac_count_ptrs[actbl] == NULL)
-	entropy->ac_count_ptrs[actbl] = (long *)
-	  (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				      257 * SIZEOF(long));
-      MEMZERO(entropy->ac_count_ptrs[actbl], 257 * SIZEOF(long));
-#endif
-    } else {
-      /* Compute derived values for Huffman tables */
-      /* We may do this more than once for a table, but it's not expensive */
-      jpeg_make_c_derived_tbl(cinfo, TRUE, dctbl,
-			      & entropy->dc_derived_tbls[dctbl]);
-      jpeg_make_c_derived_tbl(cinfo, FALSE, actbl,
-			      & entropy->ac_derived_tbls[actbl]);
-    }
-    /* Initialize DC predictions to 0 */
-    entropy->saved.last_dc_val[ci] = 0;
-  }
-
-  /* Initialize bit buffer to empty */
-  entropy->saved.put_buffer = 0;
-  entropy->saved.put_bits = 0;
-
-  /* Initialize restart stuff */
-  entropy->restarts_to_go = cinfo->restart_interval;
-  entropy->next_restart_num = 0;
-}
-
-
-/*
- * Compute the derived values for a Huffman table.
- * This routine also performs some validation checks on the table.
- *
- * Note this is also used by jcphuff.c.
- */
-
-GLOBAL(void)
-jpeg_make_c_derived_tbl (j_compress_ptr cinfo, boolean isDC, int tblno,
-			 c_derived_tbl ** pdtbl)
-{
-  JHUFF_TBL *htbl;
-  c_derived_tbl *dtbl;
-  int p, i, l, lastp, si, maxsymbol;
-  char huffsize[257];
-  unsigned int huffcode[257];
-  unsigned int code;
-
-  /* Note that huffsize[] and huffcode[] are filled in code-length order,
-   * paralleling the order of the symbols themselves in htbl->huffval[].
-   */
-
-  /* Find the input Huffman table */
-  if (tblno < 0 || tblno >= NUM_HUFF_TBLS)
-    ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tblno);
-  htbl =
-    isDC ? cinfo->dc_huff_tbl_ptrs[tblno] : cinfo->ac_huff_tbl_ptrs[tblno];
-  if (htbl == NULL)
-    ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tblno);
-
-  /* Allocate a workspace if we haven't already done so. */
-  if (*pdtbl == NULL)
-    *pdtbl = (c_derived_tbl *)
-      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				  SIZEOF(c_derived_tbl));
-  dtbl = *pdtbl;
-  
-  /* Figure C.1: make table of Huffman code length for each symbol */
-
-  p = 0;
-  for (l = 1; l <= 16; l++) {
-    i = (int) htbl->bits[l];
-    if (i < 0 || p + i > 256)	/* protect against table overrun */
-      ERREXIT(cinfo, JERR_BAD_HUFF_TABLE);
-    while (i--)
-      huffsize[p++] = (char) l;
-  }
-  huffsize[p] = 0;
-  lastp = p;
-  
-  /* Figure C.2: generate the codes themselves */
-  /* We also validate that the counts represent a legal Huffman code tree. */
-
-  code = 0;
-  si = huffsize[0];
-  p = 0;
-  while (huffsize[p]) {
-    while (((int) huffsize[p]) == si) {
-      huffcode[p++] = code;
-      code++;
-    }
-    /* code is now 1 more than the last code used for codelength si; but
-     * it must still fit in si bits, since no code is allowed to be all ones.
-     */
-    if (((INT32) code) >= (((INT32) 1) << si))
-      ERREXIT(cinfo, JERR_BAD_HUFF_TABLE);
-    code <<= 1;
-    si++;
-  }
-  
-  /* Figure C.3: generate encoding tables */
-  /* These are code and size indexed by symbol value */
-
-  /* Set all codeless symbols to have code length 0;
-   * this lets us detect duplicate VAL entries here, and later
-   * allows emit_bits to detect any attempt to emit such symbols.
-   */
-  MEMZERO(dtbl->ehufsi, SIZEOF(dtbl->ehufsi));
-
-  /* This is also a convenient place to check for out-of-range
-   * and duplicated VAL entries.  We allow 0..255 for AC symbols
-   * but only 0..15 for DC.  (We could constrain them further
-   * based on data depth and mode, but this seems enough.)
-   */
-  maxsymbol = isDC ? 15 : 255;
-
-  for (p = 0; p < lastp; p++) {
-    i = htbl->huffval[p];
-    if (i < 0 || i > maxsymbol || dtbl->ehufsi[i])
-      ERREXIT(cinfo, JERR_BAD_HUFF_TABLE);
-    dtbl->ehufco[i] = huffcode[p];
-    dtbl->ehufsi[i] = huffsize[p];
-  }
-}
-
-
-/* Outputting bytes to the file */
-
-/* Emit a byte, taking 'action' if must suspend. */
-#define emit_byte(state,val,action)  \
-	{ *(state)->next_output_byte++ = (JOCTET) (val);  \
-	  if (--(state)->free_in_buffer == 0)  \
-	    if (! dump_buffer(state))  \
-	      { action; } }
-
-
-LOCAL(boolean)
-dump_buffer (working_state * state)
-/* Empty the output buffer; return TRUE if successful, FALSE if must suspend */
-{
-  struct jpeg_destination_mgr * dest = state->cinfo->dest;
-
-  if (! (*dest->empty_output_buffer) (state->cinfo))
-    return FALSE;
-  /* After a successful buffer dump, must reset buffer pointers */
-  state->next_output_byte = dest->next_output_byte;
-  state->free_in_buffer = dest->free_in_buffer;
-  return TRUE;
-}
-
-
-/* Outputting bits to the file */
-
-/* Only the right 24 bits of put_buffer are used; the valid bits are
- * left-justified in this part.  At most 16 bits can be passed to emit_bits
- * in one call, and we never retain more than 7 bits in put_buffer
- * between calls, so 24 bits are sufficient.
- */
-
-INLINE
-LOCAL(boolean)
-emit_bits (working_state * state, unsigned int code, int size)
-/* Emit some bits; return TRUE if successful, FALSE if must suspend */
-{
-  /* This routine is heavily used, so it's worth coding tightly. */
-  register INT32 put_buffer = (INT32) code;
-  register int put_bits = state->cur.put_bits;
-
-  /* if size is 0, caller used an invalid Huffman table entry */
-  if (size == 0)
-    ERREXIT(state->cinfo, JERR_HUFF_MISSING_CODE);
-
-  put_buffer &= (((INT32) 1)<<size) - 1; /* mask off any extra bits in code */
-  
-  put_bits += size;		/* new number of bits in buffer */
-  
-  put_buffer <<= 24 - put_bits; /* align incoming bits */
-
-  put_buffer |= state->cur.put_buffer; /* and merge with old buffer contents */
-  
-  while (put_bits >= 8) {
-    int c = (int) ((put_buffer >> 16) & 0xFF);
-    
-    emit_byte(state, c, return FALSE);
-    if (c == 0xFF) {		/* need to stuff a zero byte? */
-      emit_byte(state, 0, return FALSE);
-    }
-    put_buffer <<= 8;
-    put_bits -= 8;
-  }
-
-  state->cur.put_buffer = put_buffer; /* update state variables */
-  state->cur.put_bits = put_bits;
-
-  return TRUE;
-}
-
-
-LOCAL(boolean)
-flush_bits (working_state * state)
-{
-  if (! emit_bits(state, 0x7F, 7)) /* fill any partial byte with ones */
-    return FALSE;
-  state->cur.put_buffer = 0;	/* and reset bit-buffer to empty */
-  state->cur.put_bits = 0;
-  return TRUE;
-}
-
-
-/* Encode a single block's worth of coefficients */
-
-LOCAL(boolean)
-encode_one_block (working_state * state, JCOEFPTR block, int last_dc_val,
-		  c_derived_tbl *dctbl, c_derived_tbl *actbl)
-{
-  register int temp, temp2;
-  register int nbits;
-  register int k, r, i;
-  
-  /* Encode the DC coefficient difference per section F.1.2.1 */
-  
-  temp = temp2 = block[0] - last_dc_val;
-
-  if (temp < 0) {
-    temp = -temp;		/* temp is abs value of input */
-    /* For a negative input, want temp2 = bitwise complement of abs(input) */
-    /* This code assumes we are on a two's complement machine */
-    temp2--;
-  }
-  
-  /* Find the number of bits needed for the magnitude of the coefficient */
-  nbits = 0;
-  while (temp) {
-    nbits++;
-    temp >>= 1;
-  }
-  /* Check for out-of-range coefficient values.
-   * Since we're encoding a difference, the range limit is twice as much.
-   */
-  if (nbits > MAX_COEF_BITS+1)
-    ERREXIT(state->cinfo, JERR_BAD_DCT_COEF);
-  
-  /* Emit the Huffman-coded symbol for the number of bits */
-  if (! emit_bits(state, dctbl->ehufco[nbits], dctbl->ehufsi[nbits]))
-    return FALSE;
-
-  /* Emit that number of bits of the value, if positive, */
-  /* or the complement of its magnitude, if negative. */
-  if (nbits)			/* emit_bits rejects calls with size 0 */
-    if (! emit_bits(state, (unsigned int) temp2, nbits))
-      return FALSE;
-
-  /* Encode the AC coefficients per section F.1.2.2 */
-  
-  r = 0;			/* r = run length of zeros */
-  
-  for (k = 1; k < DCTSIZE2; k++) {
-    if ((temp = block[jpeg_natural_order[k]]) == 0) {
-      r++;
-    } else {
-      /* if run length > 15, must emit special run-length-16 codes (0xF0) */
-      while (r > 15) {
-	if (! emit_bits(state, actbl->ehufco[0xF0], actbl->ehufsi[0xF0]))
-	  return FALSE;
-	r -= 16;
-      }
-
-      temp2 = temp;
-      if (temp < 0) {
-	temp = -temp;		/* temp is abs value of input */
-	/* This code assumes we are on a two's complement machine */
-	temp2--;
-      }
-      
-      /* Find the number of bits needed for the magnitude of the coefficient */
-      nbits = 1;		/* there must be at least one 1 bit */
-      while ((temp >>= 1))
-	nbits++;
-      /* Check for out-of-range coefficient values */
-      if (nbits > MAX_COEF_BITS)
-	ERREXIT(state->cinfo, JERR_BAD_DCT_COEF);
-      
-      /* Emit Huffman symbol for run length / number of bits */
-      i = (r << 4) + nbits;
-      if (! emit_bits(state, actbl->ehufco[i], actbl->ehufsi[i]))
-	return FALSE;
-
-      /* Emit that number of bits of the value, if positive, */
-      /* or the complement of its magnitude, if negative. */
-      if (! emit_bits(state, (unsigned int) temp2, nbits))
-	return FALSE;
-      
-      r = 0;
-    }
-  }
-
-  /* If the last coef(s) were zero, emit an end-of-block code */
-  if (r > 0)
-    if (! emit_bits(state, actbl->ehufco[0], actbl->ehufsi[0]))
-      return FALSE;
-
-  return TRUE;
-}
-
-
-/*
- * Emit a restart marker & resynchronize predictions.
- */
-
-LOCAL(boolean)
-emit_restart (working_state * state, int restart_num)
-{
-  int ci;
-
-  if (! flush_bits(state))
-    return FALSE;
-
-  emit_byte(state, 0xFF, return FALSE);
-  emit_byte(state, JPEG_RST0 + restart_num, return FALSE);
-
-  /* Re-initialize DC predictions to 0 */
-  for (ci = 0; ci < state->cinfo->comps_in_scan; ci++)
-    state->cur.last_dc_val[ci] = 0;
-
-  /* The restart counter is not updated until we successfully write the MCU. */
-
-  return TRUE;
-}
-
-
-/*
- * Encode and output one MCU's worth of Huffman-compressed coefficients.
- */
-
-METHODDEF(boolean)
-encode_mcu_huff (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
-{
-  huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
-  working_state state;
-  int blkn, ci;
-  jpeg_component_info * compptr;
-
-  /* Load up working state */
-  state.next_output_byte = cinfo->dest->next_output_byte;
-  state.free_in_buffer = cinfo->dest->free_in_buffer;
-  ASSIGN_STATE(state.cur, entropy->saved);
-  state.cinfo = cinfo;
-
-  /* Emit restart marker if needed */
-  if (cinfo->restart_interval) {
-    if (entropy->restarts_to_go == 0)
-      if (! emit_restart(&state, entropy->next_restart_num))
-	return FALSE;
-  }
-
-  /* Encode the MCU data blocks */
-  for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
-    ci = cinfo->MCU_membership[blkn];
-    compptr = cinfo->cur_comp_info[ci];
-    if (! encode_one_block(&state,
-			   MCU_data[blkn][0], state.cur.last_dc_val[ci],
-			   entropy->dc_derived_tbls[compptr->dc_tbl_no],
-			   entropy->ac_derived_tbls[compptr->ac_tbl_no]))
-      return FALSE;
-    /* Update last_dc_val */
-    state.cur.last_dc_val[ci] = MCU_data[blkn][0][0];
-  }
-
-  /* Completed MCU, so update state */
-  cinfo->dest->next_output_byte = state.next_output_byte;
-  cinfo->dest->free_in_buffer = state.free_in_buffer;
-  ASSIGN_STATE(entropy->saved, state.cur);
-
-  /* Update restart-interval state too */
-  if (cinfo->restart_interval) {
-    if (entropy->restarts_to_go == 0) {
-      entropy->restarts_to_go = cinfo->restart_interval;
-      entropy->next_restart_num++;
-      entropy->next_restart_num &= 7;
-    }
-    entropy->restarts_to_go--;
-  }
-
-  return TRUE;
-}
-
-
-/*
- * Finish up at the end of a Huffman-compressed scan.
- */
-
-METHODDEF(void)
-finish_pass_huff (j_compress_ptr cinfo)
-{
-  huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
-  working_state state;
-
-  /* Load up working state ... flush_bits needs it */
-  state.next_output_byte = cinfo->dest->next_output_byte;
-  state.free_in_buffer = cinfo->dest->free_in_buffer;
-  ASSIGN_STATE(state.cur, entropy->saved);
-  state.cinfo = cinfo;
-
-  /* Flush out the last data */
-  if (! flush_bits(&state))
-    ERREXIT(cinfo, JERR_CANT_SUSPEND);
-
-  /* Update state */
-  cinfo->dest->next_output_byte = state.next_output_byte;
-  cinfo->dest->free_in_buffer = state.free_in_buffer;
-  ASSIGN_STATE(entropy->saved, state.cur);
-}
-
-
-/*
- * Huffman coding optimization.
- *
- * We first scan the supplied data and count the number of uses of each symbol
- * that is to be Huffman-coded. (This process MUST agree with the code above.)
- * Then we build a Huffman coding tree for the observed counts.
- * Symbols which are not needed at all for the particular image are not
- * assigned any code, which saves space in the DHT marker as well as in
- * the compressed data.
- */
-
-#ifdef ENTROPY_OPT_SUPPORTED
-
-
-/* Process a single block's worth of coefficients */
-
-LOCAL(void)
-htest_one_block (j_compress_ptr cinfo, JCOEFPTR block, int last_dc_val,
-		 long dc_counts[], long ac_counts[])
-{
-  register int temp;
-  register int nbits;
-  register int k, r;
-  
-  /* Encode the DC coefficient difference per section F.1.2.1 */
-  
-  temp = block[0] - last_dc_val;
-  if (temp < 0)
-    temp = -temp;
-  
-  /* Find the number of bits needed for the magnitude of the coefficient */
-  nbits = 0;
-  while (temp) {
-    nbits++;
-    temp >>= 1;
-  }
-  /* Check for out-of-range coefficient values.
-   * Since we're encoding a difference, the range limit is twice as much.
-   */
-  if (nbits > MAX_COEF_BITS+1)
-    ERREXIT(cinfo, JERR_BAD_DCT_COEF);
-
-  /* Count the Huffman symbol for the number of bits */
-  dc_counts[nbits]++;
-  
-  /* Encode the AC coefficients per section F.1.2.2 */
-  
-  r = 0;			/* r = run length of zeros */
-  
-  for (k = 1; k < DCTSIZE2; k++) {
-    if ((temp = block[jpeg_natural_order[k]]) == 0) {
-      r++;
-    } else {
-      /* if run length > 15, must emit special run-length-16 codes (0xF0) */
-      while (r > 15) {
-	ac_counts[0xF0]++;
-	r -= 16;
-      }
-      
-      /* Find the number of bits needed for the magnitude of the coefficient */
-      if (temp < 0)
-	temp = -temp;
-      
-      /* Find the number of bits needed for the magnitude of the coefficient */
-      nbits = 1;		/* there must be at least one 1 bit */
-      while ((temp >>= 1))
-	nbits++;
-      /* Check for out-of-range coefficient values */
-      if (nbits > MAX_COEF_BITS)
-	ERREXIT(cinfo, JERR_BAD_DCT_COEF);
-      
-      /* Count Huffman symbol for run length / number of bits */
-      ac_counts[(r << 4) + nbits]++;
-      
-      r = 0;
-    }
-  }
-
-  /* If the last coef(s) were zero, emit an end-of-block code */
-  if (r > 0)
-    ac_counts[0]++;
-}
-
-
-/*
- * Trial-encode one MCU's worth of Huffman-compressed coefficients.
- * No data is actually output, so no suspension return is possible.
- */
-
-METHODDEF(boolean)
-encode_mcu_gather (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
-{
-  huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
-  int blkn, ci;
-  jpeg_component_info * compptr;
-
-  /* Take care of restart intervals if needed */
-  if (cinfo->restart_interval) {
-    if (entropy->restarts_to_go == 0) {
-      /* Re-initialize DC predictions to 0 */
-      for (ci = 0; ci < cinfo->comps_in_scan; ci++)
-	entropy->saved.last_dc_val[ci] = 0;
-      /* Update restart state */
-      entropy->restarts_to_go = cinfo->restart_interval;
-    }
-    entropy->restarts_to_go--;
-  }
-
-  for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
-    ci = cinfo->MCU_membership[blkn];
-    compptr = cinfo->cur_comp_info[ci];
-    htest_one_block(cinfo, MCU_data[blkn][0], entropy->saved.last_dc_val[ci],
-		    entropy->dc_count_ptrs[compptr->dc_tbl_no],
-		    entropy->ac_count_ptrs[compptr->ac_tbl_no]);
-    entropy->saved.last_dc_val[ci] = MCU_data[blkn][0][0];
-  }
-
-  return TRUE;
-}
-
-
-/*
- * Generate the best Huffman code table for the given counts, fill htbl.
- * Note this is also used by jcphuff.c.
- *
- * The JPEG standard requires that no symbol be assigned a codeword of all
- * one bits (so that padding bits added at the end of a compressed segment
- * can't look like a valid code).  Because of the canonical ordering of
- * codewords, this just means that there must be an unused slot in the
- * longest codeword length category.  Section K.2 of the JPEG spec suggests
- * reserving such a slot by pretending that symbol 256 is a valid symbol
- * with count 1.  In theory that's not optimal; giving it count zero but
- * including it in the symbol set anyway should give a better Huffman code.
- * But the theoretically better code actually seems to come out worse in
- * practice, because it produces more all-ones bytes (which incur stuffed
- * zero bytes in the final file).  In any case the difference is tiny.
- *
- * The JPEG standard requires Huffman codes to be no more than 16 bits long.
- * If some symbols have a very small but nonzero probability, the Huffman tree
- * must be adjusted to meet the code length restriction.  We currently use
- * the adjustment method suggested in JPEG section K.2.  This method is *not*
- * optimal; it may not choose the best possible limited-length code.  But
- * typically only very-low-frequency symbols will be given less-than-optimal
- * lengths, so the code is almost optimal.  Experimental comparisons against
- * an optimal limited-length-code algorithm indicate that the difference is
- * microscopic --- usually less than a hundredth of a percent of total size.
- * So the extra complexity of an optimal algorithm doesn't seem worthwhile.
- */
-
-GLOBAL(void)
-jpeg_gen_optimal_table (j_compress_ptr cinfo, JHUFF_TBL * htbl, long freq[])
-{
-#define MAX_CLEN 32		/* assumed maximum initial code length */
-  UINT8 bits[MAX_CLEN+1];	/* bits[k] = # of symbols with code length k */
-  int codesize[257];		/* codesize[k] = code length of symbol k */
-  int others[257];		/* next symbol in current branch of tree */
-  int c1, c2;
-  int p, i, j;
-  long v;
-
-  /* This algorithm is explained in section K.2 of the JPEG standard */
-
-  MEMZERO(bits, SIZEOF(bits));
-  MEMZERO(codesize, SIZEOF(codesize));
-  for (i = 0; i < 257; i++)
-    others[i] = -1;		/* init links to empty */
-  
-  freq[256] = 1;		/* make sure 256 has a nonzero count */
-  /* Including the pseudo-symbol 256 in the Huffman procedure guarantees
-   * that no real symbol is given code-value of all ones, because 256
-   * will be placed last in the largest codeword category.
-   */
-
-  /* Huffman's basic algorithm to assign optimal code lengths to symbols */
-
-  for (;;) {
-    /* Find the smallest nonzero frequency, set c1 = its symbol */
-    /* In case of ties, take the larger symbol number */
-    c1 = -1;
-    v = 1000000000L;
-    for (i = 0; i <= 256; i++) {
-      if (freq[i] && freq[i] <= v) {
-	v = freq[i];
-	c1 = i;
-      }
-    }
-
-    /* Find the next smallest nonzero frequency, set c2 = its symbol */
-    /* In case of ties, take the larger symbol number */
-    c2 = -1;
-    v = 1000000000L;
-    for (i = 0; i <= 256; i++) {
-      if (freq[i] && freq[i] <= v && i != c1) {
-	v = freq[i];
-	c2 = i;
-      }
-    }
-
-    /* Done if we've merged everything into one frequency */
-    if (c2 < 0)
-      break;
-    
-    /* Else merge the two counts/trees */
-    freq[c1] += freq[c2];
-    freq[c2] = 0;
-
-    /* Increment the codesize of everything in c1's tree branch */
-    codesize[c1]++;
-    while (others[c1] >= 0) {
-      c1 = others[c1];
-      codesize[c1]++;
-    }
-    
-    others[c1] = c2;		/* chain c2 onto c1's tree branch */
-    
-    /* Increment the codesize of everything in c2's tree branch */
-    codesize[c2]++;
-    while (others[c2] >= 0) {
-      c2 = others[c2];
-      codesize[c2]++;
-    }
-  }
-
-  /* Now count the number of symbols of each code length */
-  for (i = 0; i <= 256; i++) {
-    if (codesize[i]) {
-      /* The JPEG standard seems to think that this can't happen, */
-      /* but I'm paranoid... */
-      if (codesize[i] > MAX_CLEN)
-	ERREXIT(cinfo, JERR_HUFF_CLEN_OVERFLOW);
-
-      bits[codesize[i]]++;
-    }
-  }
-
-  /* JPEG doesn't allow symbols with code lengths over 16 bits, so if the pure
-   * Huffman procedure assigned any such lengths, we must adjust the coding.
-   * Here is what the JPEG spec says about how this next bit works:
-   * Since symbols are paired for the longest Huffman code, the symbols are
-   * removed from this length category two at a time.  The prefix for the pair
-   * (which is one bit shorter) is allocated to one of the pair; then,
-   * skipping the BITS entry for that prefix length, a code word from the next
-   * shortest nonzero BITS entry is converted into a prefix for two code words
-   * one bit longer.
-   */
-  
-  for (i = MAX_CLEN; i > 16; i--) {
-    while (bits[i] > 0) {
-      j = i - 2;		/* find length of new prefix to be used */
-      while (bits[j] == 0)
-	j--;
-      
-      bits[i] -= 2;		/* remove two symbols */
-      bits[i-1]++;		/* one goes in this length */
-      bits[j+1] += 2;		/* two new symbols in this length */
-      bits[j]--;		/* symbol of this length is now a prefix */
-    }
-  }
-
-  /* Remove the count for the pseudo-symbol 256 from the largest codelength */
-  while (bits[i] == 0)		/* find largest codelength still in use */
-    i--;
-  bits[i]--;
-  
-  /* Return final symbol counts (only for lengths 0..16) */
-  MEMCOPY(htbl->bits, bits, SIZEOF(htbl->bits));
-  
-  /* Return a list of the symbols sorted by code length */
-  /* It's not real clear to me why we don't need to consider the codelength
-   * changes made above, but the JPEG spec seems to think this works.
-   */
-  p = 0;
-  for (i = 1; i <= MAX_CLEN; i++) {
-    for (j = 0; j <= 255; j++) {
-      if (codesize[j] == i) {
-	htbl->huffval[p] = (UINT8) j;
-	p++;
-      }
-    }
-  }
-
-  /* Set sent_table FALSE so updated table will be written to JPEG file. */
-  htbl->sent_table = FALSE;
-}
-
-
-/*
- * Finish up a statistics-gathering pass and create the new Huffman tables.
- */
-
-METHODDEF(void)
-finish_pass_gather (j_compress_ptr cinfo)
-{
-  huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
-  int ci, dctbl, actbl;
-  jpeg_component_info * compptr;
-  JHUFF_TBL **htblptr;
-  boolean did_dc[NUM_HUFF_TBLS];
-  boolean did_ac[NUM_HUFF_TBLS];
-
-  /* It's important not to apply jpeg_gen_optimal_table more than once
-   * per table, because it clobbers the input frequency counts!
-   */
-  MEMZERO(did_dc, SIZEOF(did_dc));
-  MEMZERO(did_ac, SIZEOF(did_ac));
-
-  for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-    compptr = cinfo->cur_comp_info[ci];
-    dctbl = compptr->dc_tbl_no;
-    actbl = compptr->ac_tbl_no;
-    if (! did_dc[dctbl]) {
-      htblptr = & cinfo->dc_huff_tbl_ptrs[dctbl];
-      if (*htblptr == NULL)
-	*htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo);
-      jpeg_gen_optimal_table(cinfo, *htblptr, entropy->dc_count_ptrs[dctbl]);
-      did_dc[dctbl] = TRUE;
-    }
-    if (! did_ac[actbl]) {
-      htblptr = & cinfo->ac_huff_tbl_ptrs[actbl];
-      if (*htblptr == NULL)
-	*htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo);
-      jpeg_gen_optimal_table(cinfo, *htblptr, entropy->ac_count_ptrs[actbl]);
-      did_ac[actbl] = TRUE;
-    }
-  }
-}
-
-
-#endif /* ENTROPY_OPT_SUPPORTED */
-
-
-/*
- * Module initialization routine for Huffman entropy encoding.
- */
-
-GLOBAL(void)
-jinit_huff_encoder (j_compress_ptr cinfo)
-{
-  huff_entropy_ptr entropy;
-  int i;
-
-  entropy = (huff_entropy_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(huff_entropy_encoder));
-  cinfo->entropy = (struct jpeg_entropy_encoder *) entropy;
-  entropy->pub.start_pass = start_pass_huff;
-
-  /* Mark tables unallocated */
-  for (i = 0; i < NUM_HUFF_TBLS; i++) {
-    entropy->dc_derived_tbls[i] = entropy->ac_derived_tbls[i] = NULL;
-#ifdef ENTROPY_OPT_SUPPORTED
-    entropy->dc_count_ptrs[i] = entropy->ac_count_ptrs[i] = NULL;
-#endif
-  }
-}
diff --git a/src/3rdparty/libjpeg/jchuff.h b/src/3rdparty/libjpeg/jchuff.h
deleted file mode 100644
index a9599fc1e..000000000
--- a/src/3rdparty/libjpeg/jchuff.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * jchuff.h
- *
- * Copyright (C) 1991-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains declarations for Huffman entropy encoding routines
- * that are shared between the sequential encoder (jchuff.c) and the
- * progressive encoder (jcphuff.c).  No other modules need to see these.
- */
-
-/* The legal range of a DCT coefficient is
- *  -1024 .. +1023  for 8-bit data;
- * -16384 .. +16383 for 12-bit data.
- * Hence the magnitude should always fit in 10 or 14 bits respectively.
- */
-
-#if BITS_IN_JSAMPLE == 8
-#define MAX_COEF_BITS 10
-#else
-#define MAX_COEF_BITS 14
-#endif
-
-/* Derived data constructed for each Huffman table */
-
-typedef struct {
-  unsigned int ehufco[256];	/* code for each symbol */
-  char ehufsi[256];		/* length of code for each symbol */
-  /* If no code has been allocated for a symbol S, ehufsi[S] contains 0 */
-} c_derived_tbl;
-
-/* Short forms of external names for systems with brain-damaged linkers. */
-
-#ifdef NEED_SHORT_EXTERNAL_NAMES
-#define jpeg_make_c_derived_tbl	jMkCDerived
-#define jpeg_gen_optimal_table	jGenOptTbl
-#endif /* NEED_SHORT_EXTERNAL_NAMES */
-
-/* Expand a Huffman table definition into the derived format */
-EXTERN(void) jpeg_make_c_derived_tbl
-	JPP((j_compress_ptr cinfo, boolean isDC, int tblno,
-	     c_derived_tbl ** pdtbl));
-
-/* Generate an optimal table definition given the specified counts */
-EXTERN(void) jpeg_gen_optimal_table
-	JPP((j_compress_ptr cinfo, JHUFF_TBL * htbl, long freq[]));
diff --git a/src/3rdparty/libjpeg/jcinit.c b/src/3rdparty/libjpeg/jcinit.c
deleted file mode 100644
index 5efffe331..000000000
--- a/src/3rdparty/libjpeg/jcinit.c
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * jcinit.c
- *
- * Copyright (C) 1991-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains initialization logic for the JPEG compressor.
- * This routine is in charge of selecting the modules to be executed and
- * making an initialization call to each one.
- *
- * Logically, this code belongs in jcmaster.c.  It's split out because
- * linking this routine implies linking the entire compression library.
- * For a transcoding-only application, we want to be able to use jcmaster.c
- * without linking in the whole library.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/*
- * Master selection of compression modules.
- * This is done once at the start of processing an image.  We determine
- * which modules will be used and give them appropriate initialization calls.
- */
-
-GLOBAL(void)
-jinit_compress_master (j_compress_ptr cinfo)
-{
-  /* Initialize master control (includes parameter checking/processing) */
-  jinit_c_master_control(cinfo, FALSE /* full compression */);
-
-  /* Preprocessing */
-  if (! cinfo->raw_data_in) {
-    jinit_color_converter(cinfo);
-    jinit_downsampler(cinfo);
-    jinit_c_prep_controller(cinfo, FALSE /* never need full buffer here */);
-  }
-  /* Forward DCT */
-  jinit_forward_dct(cinfo);
-  /* Entropy encoding: either Huffman or arithmetic coding. */
-  if (cinfo->arith_code) {
-    ERREXIT(cinfo, JERR_ARITH_NOTIMPL);
-  } else {
-    if (cinfo->progressive_mode) {
-#ifdef C_PROGRESSIVE_SUPPORTED
-      jinit_phuff_encoder(cinfo);
-#else
-      ERREXIT(cinfo, JERR_NOT_COMPILED);
-#endif
-    } else
-      jinit_huff_encoder(cinfo);
-  }
-
-  /* Need a full-image coefficient buffer in any multi-pass mode. */
-  jinit_c_coef_controller(cinfo,
-		(boolean) (cinfo->num_scans > 1 || cinfo->optimize_coding));
-  jinit_c_main_controller(cinfo, FALSE /* never need full buffer here */);
-
-  jinit_marker_writer(cinfo);
-
-  /* We can now tell the memory manager to allocate virtual arrays. */
-  (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo);
-
-  /* Write the datastream header (SOI) immediately.
-   * Frame and scan headers are postponed till later.
-   * This lets application insert special markers after the SOI.
-   */
-  (*cinfo->marker->write_file_header) (cinfo);
-}
diff --git a/src/3rdparty/libjpeg/jcmainct.c b/src/3rdparty/libjpeg/jcmainct.c
deleted file mode 100644
index e0279a7e0..000000000
--- a/src/3rdparty/libjpeg/jcmainct.c
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * jcmainct.c
- *
- * Copyright (C) 1994-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains the main buffer controller for compression.
- * The main buffer lies between the pre-processor and the JPEG
- * compressor proper; it holds downsampled data in the JPEG colorspace.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/* Note: currently, there is no operating mode in which a full-image buffer
- * is needed at this step.  If there were, that mode could not be used with
- * "raw data" input, since this module is bypassed in that case.  However,
- * we've left the code here for possible use in special applications.
- */
-#undef FULL_MAIN_BUFFER_SUPPORTED
-
-
-/* Private buffer controller object */
-
-typedef struct {
-  struct jpeg_c_main_controller pub; /* public fields */
-
-  JDIMENSION cur_iMCU_row;	/* number of current iMCU row */
-  JDIMENSION rowgroup_ctr;	/* counts row groups received in iMCU row */
-  boolean suspended;		/* remember if we suspended output */
-  J_BUF_MODE pass_mode;		/* current operating mode */
-
-  /* If using just a strip buffer, this points to the entire set of buffers
-   * (we allocate one for each component).  In the full-image case, this
-   * points to the currently accessible strips of the virtual arrays.
-   */
-  JSAMPARRAY buffer[MAX_COMPONENTS];
-
-#ifdef FULL_MAIN_BUFFER_SUPPORTED
-  /* If using full-image storage, this array holds pointers to virtual-array
-   * control blocks for each component.  Unused if not full-image storage.
-   */
-  jvirt_sarray_ptr whole_image[MAX_COMPONENTS];
-#endif
-} my_main_controller;
-
-typedef my_main_controller * my_main_ptr;
-
-
-/* Forward declarations */
-METHODDEF(void) process_data_simple_main
-	JPP((j_compress_ptr cinfo, JSAMPARRAY input_buf,
-	     JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail));
-#ifdef FULL_MAIN_BUFFER_SUPPORTED
-METHODDEF(void) process_data_buffer_main
-	JPP((j_compress_ptr cinfo, JSAMPARRAY input_buf,
-	     JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail));
-#endif
-
-
-/*
- * Initialize for a processing pass.
- */
-
-METHODDEF(void)
-start_pass_main (j_compress_ptr cinfo, J_BUF_MODE pass_mode)
-{
-  my_main_ptr main = (my_main_ptr) cinfo->main;
-
-  /* Do nothing in raw-data mode. */
-  if (cinfo->raw_data_in)
-    return;
-
-  main->cur_iMCU_row = 0;	/* initialize counters */
-  main->rowgroup_ctr = 0;
-  main->suspended = FALSE;
-  main->pass_mode = pass_mode;	/* save mode for use by process_data */
-
-  switch (pass_mode) {
-  case JBUF_PASS_THRU:
-#ifdef FULL_MAIN_BUFFER_SUPPORTED
-    if (main->whole_image[0] != NULL)
-      ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-#endif
-    main->pub.process_data = process_data_simple_main;
-    break;
-#ifdef FULL_MAIN_BUFFER_SUPPORTED
-  case JBUF_SAVE_SOURCE:
-  case JBUF_CRANK_DEST:
-  case JBUF_SAVE_AND_PASS:
-    if (main->whole_image[0] == NULL)
-      ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-    main->pub.process_data = process_data_buffer_main;
-    break;
-#endif
-  default:
-    ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-    break;
-  }
-}
-
-
-/*
- * Process some data.
- * This routine handles the simple pass-through mode,
- * where we have only a strip buffer.
- */
-
-METHODDEF(void)
-process_data_simple_main (j_compress_ptr cinfo,
-			  JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
-			  JDIMENSION in_rows_avail)
-{
-  my_main_ptr main = (my_main_ptr) cinfo->main;
-
-  while (main->cur_iMCU_row < cinfo->total_iMCU_rows) {
-    /* Read input data if we haven't filled the main buffer yet */
-    if (main->rowgroup_ctr < DCTSIZE)
-      (*cinfo->prep->pre_process_data) (cinfo,
-					input_buf, in_row_ctr, in_rows_avail,
-					main->buffer, &main->rowgroup_ctr,
-					(JDIMENSION) DCTSIZE);
-
-    /* If we don't have a full iMCU row buffered, return to application for
-     * more data.  Note that preprocessor will always pad to fill the iMCU row
-     * at the bottom of the image.
-     */
-    if (main->rowgroup_ctr != DCTSIZE)
-      return;
-
-    /* Send the completed row to the compressor */
-    if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) {
-      /* If compressor did not consume the whole row, then we must need to
-       * suspend processing and return to the application.  In this situation
-       * we pretend we didn't yet consume the last input row; otherwise, if
-       * it happened to be the last row of the image, the application would
-       * think we were done.
-       */
-      if (! main->suspended) {
-	(*in_row_ctr)--;
-	main->suspended = TRUE;
-      }
-      return;
-    }
-    /* We did finish the row.  Undo our little suspension hack if a previous
-     * call suspended; then mark the main buffer empty.
-     */
-    if (main->suspended) {
-      (*in_row_ctr)++;
-      main->suspended = FALSE;
-    }
-    main->rowgroup_ctr = 0;
-    main->cur_iMCU_row++;
-  }
-}
-
-
-#ifdef FULL_MAIN_BUFFER_SUPPORTED
-
-/*
- * Process some data.
- * This routine handles all of the modes that use a full-size buffer.
- */
-
-METHODDEF(void)
-process_data_buffer_main (j_compress_ptr cinfo,
-			  JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
-			  JDIMENSION in_rows_avail)
-{
-  my_main_ptr main = (my_main_ptr) cinfo->main;
-  int ci;
-  jpeg_component_info *compptr;
-  boolean writing = (main->pass_mode != JBUF_CRANK_DEST);
-
-  while (main->cur_iMCU_row < cinfo->total_iMCU_rows) {
-    /* Realign the virtual buffers if at the start of an iMCU row. */
-    if (main->rowgroup_ctr == 0) {
-      for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-	   ci++, compptr++) {
-	main->buffer[ci] = (*cinfo->mem->access_virt_sarray)
-	  ((j_common_ptr) cinfo, main->whole_image[ci],
-	   main->cur_iMCU_row * (compptr->v_samp_factor * DCTSIZE),
-	   (JDIMENSION) (compptr->v_samp_factor * DCTSIZE), writing);
-      }
-      /* In a read pass, pretend we just read some source data. */
-      if (! writing) {
-	*in_row_ctr += cinfo->max_v_samp_factor * DCTSIZE;
-	main->rowgroup_ctr = DCTSIZE;
-      }
-    }
-
-    /* If a write pass, read input data until the current iMCU row is full. */
-    /* Note: preprocessor will pad if necessary to fill the last iMCU row. */
-    if (writing) {
-      (*cinfo->prep->pre_process_data) (cinfo,
-					input_buf, in_row_ctr, in_rows_avail,
-					main->buffer, &main->rowgroup_ctr,
-					(JDIMENSION) DCTSIZE);
-      /* Return to application if we need more data to fill the iMCU row. */
-      if (main->rowgroup_ctr < DCTSIZE)
-	return;
-    }
-
-    /* Emit data, unless this is a sink-only pass. */
-    if (main->pass_mode != JBUF_SAVE_SOURCE) {
-      if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) {
-	/* If compressor did not consume the whole row, then we must need to
-	 * suspend processing and return to the application.  In this situation
-	 * we pretend we didn't yet consume the last input row; otherwise, if
-	 * it happened to be the last row of the image, the application would
-	 * think we were done.
-	 */
-	if (! main->suspended) {
-	  (*in_row_ctr)--;
-	  main->suspended = TRUE;
-	}
-	return;
-      }
-      /* We did finish the row.  Undo our little suspension hack if a previous
-       * call suspended; then mark the main buffer empty.
-       */
-      if (main->suspended) {
-	(*in_row_ctr)++;
-	main->suspended = FALSE;
-      }
-    }
-
-    /* If get here, we are done with this iMCU row.  Mark buffer empty. */
-    main->rowgroup_ctr = 0;
-    main->cur_iMCU_row++;
-  }
-}
-
-#endif /* FULL_MAIN_BUFFER_SUPPORTED */
-
-
-/*
- * Initialize main buffer controller.
- */
-
-GLOBAL(void)
-jinit_c_main_controller (j_compress_ptr cinfo, boolean need_full_buffer)
-{
-  my_main_ptr main;
-  int ci;
-  jpeg_component_info *compptr;
-
-  main = (my_main_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_main_controller));
-  cinfo->main = (struct jpeg_c_main_controller *) main;
-  main->pub.start_pass = start_pass_main;
-
-  /* We don't need to create a buffer in raw-data mode. */
-  if (cinfo->raw_data_in)
-    return;
-
-  /* Create the buffer.  It holds downsampled data, so each component
-   * may be of a different size.
-   */
-  if (need_full_buffer) {
-#ifdef FULL_MAIN_BUFFER_SUPPORTED
-    /* Allocate a full-image virtual array for each component */
-    /* Note we pad the bottom to a multiple of the iMCU height */
-    for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-	 ci++, compptr++) {
-      main->whole_image[ci] = (*cinfo->mem->request_virt_sarray)
-	((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE,
-	 compptr->width_in_blocks * DCTSIZE,
-	 (JDIMENSION) jround_up((long) compptr->height_in_blocks,
-				(long) compptr->v_samp_factor) * DCTSIZE,
-	 (JDIMENSION) (compptr->v_samp_factor * DCTSIZE));
-    }
-#else
-    ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-#endif
-  } else {
-#ifdef FULL_MAIN_BUFFER_SUPPORTED
-    main->whole_image[0] = NULL; /* flag for no virtual arrays */
-#endif
-    /* Allocate a strip buffer for each component */
-    for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-	 ci++, compptr++) {
-      main->buffer[ci] = (*cinfo->mem->alloc_sarray)
-	((j_common_ptr) cinfo, JPOOL_IMAGE,
-	 compptr->width_in_blocks * DCTSIZE,
-	 (JDIMENSION) (compptr->v_samp_factor * DCTSIZE));
-    }
-  }
-}
diff --git a/src/3rdparty/libjpeg/jcmarker.c b/src/3rdparty/libjpeg/jcmarker.c
deleted file mode 100644
index 4c4cf14a7..000000000
--- a/src/3rdparty/libjpeg/jcmarker.c
+++ /dev/null
@@ -1,664 +0,0 @@
-/*
- * jcmarker.c
- *
- * Copyright (C) 1991-1998, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains routines to write JPEG datastream markers.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-typedef enum {			/* JPEG marker codes */
-  M_SOF0  = 0xc0,
-  M_SOF1  = 0xc1,
-  M_SOF2  = 0xc2,
-  M_SOF3  = 0xc3,
-  
-  M_SOF5  = 0xc5,
-  M_SOF6  = 0xc6,
-  M_SOF7  = 0xc7,
-  
-  M_JPG   = 0xc8,
-  M_SOF9  = 0xc9,
-  M_SOF10 = 0xca,
-  M_SOF11 = 0xcb,
-  
-  M_SOF13 = 0xcd,
-  M_SOF14 = 0xce,
-  M_SOF15 = 0xcf,
-  
-  M_DHT   = 0xc4,
-  
-  M_DAC   = 0xcc,
-  
-  M_RST0  = 0xd0,
-  M_RST1  = 0xd1,
-  M_RST2  = 0xd2,
-  M_RST3  = 0xd3,
-  M_RST4  = 0xd4,
-  M_RST5  = 0xd5,
-  M_RST6  = 0xd6,
-  M_RST7  = 0xd7,
-  
-  M_SOI   = 0xd8,
-  M_EOI   = 0xd9,
-  M_SOS   = 0xda,
-  M_DQT   = 0xdb,
-  M_DNL   = 0xdc,
-  M_DRI   = 0xdd,
-  M_DHP   = 0xde,
-  M_EXP   = 0xdf,
-  
-  M_APP0  = 0xe0,
-  M_APP1  = 0xe1,
-  M_APP2  = 0xe2,
-  M_APP3  = 0xe3,
-  M_APP4  = 0xe4,
-  M_APP5  = 0xe5,
-  M_APP6  = 0xe6,
-  M_APP7  = 0xe7,
-  M_APP8  = 0xe8,
-  M_APP9  = 0xe9,
-  M_APP10 = 0xea,
-  M_APP11 = 0xeb,
-  M_APP12 = 0xec,
-  M_APP13 = 0xed,
-  M_APP14 = 0xee,
-  M_APP15 = 0xef,
-  
-  M_JPG0  = 0xf0,
-  M_JPG13 = 0xfd,
-  M_COM   = 0xfe,
-  
-  M_TEM   = 0x01,
-  
-  M_ERROR = 0x100
-} JPEG_MARKER;
-
-
-/* Private state */
-
-typedef struct {
-  struct jpeg_marker_writer pub; /* public fields */
-
-  unsigned int last_restart_interval; /* last DRI value emitted; 0 after SOI */
-} my_marker_writer;
-
-typedef my_marker_writer * my_marker_ptr;
-
-
-/*
- * Basic output routines.
- *
- * Note that we do not support suspension while writing a marker.
- * Therefore, an application using suspension must ensure that there is
- * enough buffer space for the initial markers (typ. 600-700 bytes) before
- * calling jpeg_start_compress, and enough space to write the trailing EOI
- * (a few bytes) before calling jpeg_finish_compress.  Multipass compression
- * modes are not supported at all with suspension, so those two are the only
- * points where markers will be written.
- */
-
-LOCAL(void)
-emit_byte (j_compress_ptr cinfo, int val)
-/* Emit a byte */
-{
-  struct jpeg_destination_mgr * dest = cinfo->dest;
-
-  *(dest->next_output_byte)++ = (JOCTET) val;
-  if (--dest->free_in_buffer == 0) {
-    if (! (*dest->empty_output_buffer) (cinfo))
-      ERREXIT(cinfo, JERR_CANT_SUSPEND);
-  }
-}
-
-
-LOCAL(void)
-emit_marker (j_compress_ptr cinfo, JPEG_MARKER mark)
-/* Emit a marker code */
-{
-  emit_byte(cinfo, 0xFF);
-  emit_byte(cinfo, (int) mark);
-}
-
-
-LOCAL(void)
-emit_2bytes (j_compress_ptr cinfo, int value)
-/* Emit a 2-byte integer; these are always MSB first in JPEG files */
-{
-  emit_byte(cinfo, (value >> 8) & 0xFF);
-  emit_byte(cinfo, value & 0xFF);
-}
-
-
-/*
- * Routines to write specific marker types.
- */
-
-LOCAL(int)
-emit_dqt (j_compress_ptr cinfo, int index)
-/* Emit a DQT marker */
-/* Returns the precision used (0 = 8bits, 1 = 16bits) for baseline checking */
-{
-  JTQUANT_TBL * qtbl = cinfo->quant_tbl_ptrs[index];
-  int prec;
-  int i;
-
-  if (qtbl == NULL)
-    ERREXIT1(cinfo, JERR_NO_QUANT_TABLE, index);
-
-  prec = 0;
-  for (i = 0; i < DCTSIZE2; i++) {
-    if (qtbl->quantval[i] > 255)
-      prec = 1;
-  }
-
-  if (! qtbl->sent_table) {
-    emit_marker(cinfo, M_DQT);
-
-    emit_2bytes(cinfo, prec ? DCTSIZE2*2 + 1 + 2 : DCTSIZE2 + 1 + 2);
-
-    emit_byte(cinfo, index + (prec<<4));
-
-    for (i = 0; i < DCTSIZE2; i++) {
-      /* The table entries must be emitted in zigzag order. */
-      unsigned int qval = qtbl->quantval[jpeg_natural_order[i]];
-      if (prec)
-	emit_byte(cinfo, (int) (qval >> 8));
-      emit_byte(cinfo, (int) (qval & 0xFF));
-    }
-
-    qtbl->sent_table = TRUE;
-  }
-
-  return prec;
-}
-
-
-LOCAL(void)
-emit_dht (j_compress_ptr cinfo, int index, boolean is_ac)
-/* Emit a DHT marker */
-{
-  JHUFF_TBL * htbl;
-  int length, i;
-  
-  if (is_ac) {
-    htbl = cinfo->ac_huff_tbl_ptrs[index];
-    index += 0x10;		/* output index has AC bit set */
-  } else {
-    htbl = cinfo->dc_huff_tbl_ptrs[index];
-  }
-
-  if (htbl == NULL)
-    ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, index);
-  
-  if (! htbl->sent_table) {
-    emit_marker(cinfo, M_DHT);
-    
-    length = 0;
-    for (i = 1; i <= 16; i++)
-      length += htbl->bits[i];
-    
-    emit_2bytes(cinfo, length + 2 + 1 + 16);
-    emit_byte(cinfo, index);
-    
-    for (i = 1; i <= 16; i++)
-      emit_byte(cinfo, htbl->bits[i]);
-    
-    for (i = 0; i < length; i++)
-      emit_byte(cinfo, htbl->huffval[i]);
-    
-    htbl->sent_table = TRUE;
-  }
-}
-
-
-LOCAL(void)
-emit_dac (j_compress_ptr cinfo)
-/* Emit a DAC marker */
-/* Since the useful info is so small, we want to emit all the tables in */
-/* one DAC marker.  Therefore this routine does its own scan of the table. */
-{
-#ifdef C_ARITH_CODING_SUPPORTED
-  char dc_in_use[NUM_ARITH_TBLS];
-  char ac_in_use[NUM_ARITH_TBLS];
-  int length, i;
-  jpeg_component_info *compptr;
-  
-  for (i = 0; i < NUM_ARITH_TBLS; i++)
-    dc_in_use[i] = ac_in_use[i] = 0;
-  
-  for (i = 0; i < cinfo->comps_in_scan; i++) {
-    compptr = cinfo->cur_comp_info[i];
-    dc_in_use[compptr->dc_tbl_no] = 1;
-    ac_in_use[compptr->ac_tbl_no] = 1;
-  }
-  
-  length = 0;
-  for (i = 0; i < NUM_ARITH_TBLS; i++)
-    length += dc_in_use[i] + ac_in_use[i];
-  
-  emit_marker(cinfo, M_DAC);
-  
-  emit_2bytes(cinfo, length*2 + 2);
-  
-  for (i = 0; i < NUM_ARITH_TBLS; i++) {
-    if (dc_in_use[i]) {
-      emit_byte(cinfo, i);
-      emit_byte(cinfo, cinfo->arith_dc_L[i] + (cinfo->arith_dc_U[i]<<4));
-    }
-    if (ac_in_use[i]) {
-      emit_byte(cinfo, i + 0x10);
-      emit_byte(cinfo, cinfo->arith_ac_K[i]);
-    }
-  }
-#endif /* C_ARITH_CODING_SUPPORTED */
-}
-
-
-LOCAL(void)
-emit_dri (j_compress_ptr cinfo)
-/* Emit a DRI marker */
-{
-  emit_marker(cinfo, M_DRI);
-  
-  emit_2bytes(cinfo, 4);	/* fixed length */
-
-  emit_2bytes(cinfo, (int) cinfo->restart_interval);
-}
-
-
-LOCAL(void)
-emit_sof (j_compress_ptr cinfo, JPEG_MARKER code)
-/* Emit a SOF marker */
-{
-  int ci;
-  jpeg_component_info *compptr;
-  
-  emit_marker(cinfo, code);
-  
-  emit_2bytes(cinfo, 3 * cinfo->num_components + 2 + 5 + 1); /* length */
-
-  /* Make sure image isn't bigger than SOF field can handle */
-  if ((long) cinfo->image_height > 65535L ||
-      (long) cinfo->image_width > 65535L)
-    ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) 65535);
-
-  emit_byte(cinfo, cinfo->data_precision);
-  emit_2bytes(cinfo, (int) cinfo->image_height);
-  emit_2bytes(cinfo, (int) cinfo->image_width);
-
-  emit_byte(cinfo, cinfo->num_components);
-
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    emit_byte(cinfo, compptr->component_id);
-    emit_byte(cinfo, (compptr->h_samp_factor << 4) + compptr->v_samp_factor);
-    emit_byte(cinfo, compptr->quant_tbl_no);
-  }
-}
-
-
-LOCAL(void)
-emit_sos (j_compress_ptr cinfo)
-/* Emit a SOS marker */
-{
-  int i, td, ta;
-  jpeg_component_info *compptr;
-  
-  emit_marker(cinfo, M_SOS);
-  
-  emit_2bytes(cinfo, 2 * cinfo->comps_in_scan + 2 + 1 + 3); /* length */
-  
-  emit_byte(cinfo, cinfo->comps_in_scan);
-  
-  for (i = 0; i < cinfo->comps_in_scan; i++) {
-    compptr = cinfo->cur_comp_info[i];
-    emit_byte(cinfo, compptr->component_id);
-    td = compptr->dc_tbl_no;
-    ta = compptr->ac_tbl_no;
-    if (cinfo->progressive_mode) {
-      /* Progressive mode: only DC or only AC tables are used in one scan;
-       * furthermore, Huffman coding of DC refinement uses no table at all.
-       * We emit 0 for unused field(s); this is recommended by the P&M text
-       * but does not seem to be specified in the standard.
-       */
-      if (cinfo->Ss == 0) {
-	ta = 0;			/* DC scan */
-	if (cinfo->Ah != 0 && !cinfo->arith_code)
-	  td = 0;		/* no DC table either */
-      } else {
-	td = 0;			/* AC scan */
-      }
-    }
-    emit_byte(cinfo, (td << 4) + ta);
-  }
-
-  emit_byte(cinfo, cinfo->Ss);
-  emit_byte(cinfo, cinfo->Se);
-  emit_byte(cinfo, (cinfo->Ah << 4) + cinfo->Al);
-}
-
-
-LOCAL(void)
-emit_jfif_app0 (j_compress_ptr cinfo)
-/* Emit a JFIF-compliant APP0 marker */
-{
-  /*
-   * Length of APP0 block	(2 bytes)
-   * Block ID			(4 bytes - ASCII "JFIF")
-   * Zero byte			(1 byte to terminate the ID string)
-   * Version Major, Minor	(2 bytes - major first)
-   * Units			(1 byte - 0x00 = none, 0x01 = inch, 0x02 = cm)
-   * Xdpu			(2 bytes - dots per unit horizontal)
-   * Ydpu			(2 bytes - dots per unit vertical)
-   * Thumbnail X size		(1 byte)
-   * Thumbnail Y size		(1 byte)
-   */
-  
-  emit_marker(cinfo, M_APP0);
-  
-  emit_2bytes(cinfo, 2 + 4 + 1 + 2 + 1 + 2 + 2 + 1 + 1); /* length */
-
-  emit_byte(cinfo, 0x4A);	/* Identifier: ASCII "JFIF" */
-  emit_byte(cinfo, 0x46);
-  emit_byte(cinfo, 0x49);
-  emit_byte(cinfo, 0x46);
-  emit_byte(cinfo, 0);
-  emit_byte(cinfo, cinfo->JFIF_major_version); /* Version fields */
-  emit_byte(cinfo, cinfo->JFIF_minor_version);
-  emit_byte(cinfo, cinfo->density_unit); /* Pixel size information */
-  emit_2bytes(cinfo, (int) cinfo->X_density);
-  emit_2bytes(cinfo, (int) cinfo->Y_density);
-  emit_byte(cinfo, 0);		/* No thumbnail image */
-  emit_byte(cinfo, 0);
-}
-
-
-LOCAL(void)
-emit_adobe_app14 (j_compress_ptr cinfo)
-/* Emit an Adobe APP14 marker */
-{
-  /*
-   * Length of APP14 block	(2 bytes)
-   * Block ID			(5 bytes - ASCII "Adobe")
-   * Version Number		(2 bytes - currently 100)
-   * Flags0			(2 bytes - currently 0)
-   * Flags1			(2 bytes - currently 0)
-   * Color transform		(1 byte)
-   *
-   * Although Adobe TN 5116 mentions Version = 101, all the Adobe files
-   * now in circulation seem to use Version = 100, so that's what we write.
-   *
-   * We write the color transform byte as 1 if the JPEG color space is
-   * YCbCr, 2 if it's YCCK, 0 otherwise.  Adobe's definition has to do with
-   * whether the encoder performed a transformation, which is pretty useless.
-   */
-  
-  emit_marker(cinfo, M_APP14);
-  
-  emit_2bytes(cinfo, 2 + 5 + 2 + 2 + 2 + 1); /* length */
-
-  emit_byte(cinfo, 0x41);	/* Identifier: ASCII "Adobe" */
-  emit_byte(cinfo, 0x64);
-  emit_byte(cinfo, 0x6F);
-  emit_byte(cinfo, 0x62);
-  emit_byte(cinfo, 0x65);
-  emit_2bytes(cinfo, 100);	/* Version */
-  emit_2bytes(cinfo, 0);	/* Flags0 */
-  emit_2bytes(cinfo, 0);	/* Flags1 */
-  switch (cinfo->jpeg_color_space) {
-  case JCS_YCbCr:
-    emit_byte(cinfo, 1);	/* Color transform = 1 */
-    break;
-  case JCS_YCCK:
-    emit_byte(cinfo, 2);	/* Color transform = 2 */
-    break;
-  default:
-    emit_byte(cinfo, 0);	/* Color transform = 0 */
-    break;
-  }
-}
-
-
-/*
- * These routines allow writing an arbitrary marker with parameters.
- * The only intended use is to emit COM or APPn markers after calling
- * write_file_header and before calling write_frame_header.
- * Other uses are not guaranteed to produce desirable results.
- * Counting the parameter bytes properly is the caller's responsibility.
- */
-
-METHODDEF(void)
-write_marker_header (j_compress_ptr cinfo, int marker, unsigned int datalen)
-/* Emit an arbitrary marker header */
-{
-  if (datalen > (unsigned int) 65533)		/* safety check */
-    ERREXIT(cinfo, JERR_BAD_LENGTH);
-
-  emit_marker(cinfo, (JPEG_MARKER) marker);
-
-  emit_2bytes(cinfo, (int) (datalen + 2));	/* total length */
-}
-
-METHODDEF(void)
-write_marker_byte (j_compress_ptr cinfo, int val)
-/* Emit one byte of marker parameters following write_marker_header */
-{
-  emit_byte(cinfo, val);
-}
-
-
-/*
- * Write datastream header.
- * This consists of an SOI and optional APPn markers.
- * We recommend use of the JFIF marker, but not the Adobe marker,
- * when using YCbCr or grayscale data.  The JFIF marker should NOT
- * be used for any other JPEG colorspace.  The Adobe marker is helpful
- * to distinguish RGB, CMYK, and YCCK colorspaces.
- * Note that an application can write additional header markers after
- * jpeg_start_compress returns.
- */
-
-METHODDEF(void)
-write_file_header (j_compress_ptr cinfo)
-{
-  my_marker_ptr marker = (my_marker_ptr) cinfo->marker;
-
-  emit_marker(cinfo, M_SOI);	/* first the SOI */
-
-  /* SOI is defined to reset restart interval to 0 */
-  marker->last_restart_interval = 0;
-
-  if (cinfo->write_JFIF_header)	/* next an optional JFIF APP0 */
-    emit_jfif_app0(cinfo);
-  if (cinfo->write_Adobe_marker) /* next an optional Adobe APP14 */
-    emit_adobe_app14(cinfo);
-}
-
-
-/*
- * Write frame header.
- * This consists of DQT and SOFn markers.
- * Note that we do not emit the SOF until we have emitted the DQT(s).
- * This avoids compatibility problems with incorrect implementations that
- * try to error-check the quant table numbers as soon as they see the SOF.
- */
-
-METHODDEF(void)
-write_frame_header (j_compress_ptr cinfo)
-{
-  int ci, prec;
-  boolean is_baseline;
-  jpeg_component_info *compptr;
-  
-  /* Emit DQT for each quantization table.
-   * Note that emit_dqt() suppresses any duplicate tables.
-   */
-  prec = 0;
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    prec += emit_dqt(cinfo, compptr->quant_tbl_no);
-  }
-  /* now prec is nonzero iff there are any 16-bit quant tables. */
-
-  /* Check for a non-baseline specification.
-   * Note we assume that Huffman table numbers won't be changed later.
-   */
-  if (cinfo->arith_code || cinfo->progressive_mode ||
-      cinfo->data_precision != 8) {
-    is_baseline = FALSE;
-  } else {
-    is_baseline = TRUE;
-    for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-	 ci++, compptr++) {
-      if (compptr->dc_tbl_no > 1 || compptr->ac_tbl_no > 1)
-	is_baseline = FALSE;
-    }
-    if (prec && is_baseline) {
-      is_baseline = FALSE;
-      /* If it's baseline except for quantizer size, warn the user */
-      TRACEMS(cinfo, 0, JTRC_16BIT_TABLES);
-    }
-  }
-
-  /* Emit the proper SOF marker */
-  if (cinfo->arith_code) {
-    emit_sof(cinfo, M_SOF9);	/* SOF code for arithmetic coding */
-  } else {
-    if (cinfo->progressive_mode)
-      emit_sof(cinfo, M_SOF2);	/* SOF code for progressive Huffman */
-    else if (is_baseline)
-      emit_sof(cinfo, M_SOF0);	/* SOF code for baseline implementation */
-    else
-      emit_sof(cinfo, M_SOF1);	/* SOF code for non-baseline Huffman file */
-  }
-}
-
-
-/*
- * Write scan header.
- * This consists of DHT or DAC markers, optional DRI, and SOS.
- * Compressed data will be written following the SOS.
- */
-
-METHODDEF(void)
-write_scan_header (j_compress_ptr cinfo)
-{
-  my_marker_ptr marker = (my_marker_ptr) cinfo->marker;
-  int i;
-  jpeg_component_info *compptr;
-
-  if (cinfo->arith_code) {
-    /* Emit arith conditioning info.  We may have some duplication
-     * if the file has multiple scans, but it's so small it's hardly
-     * worth worrying about.
-     */
-    emit_dac(cinfo);
-  } else {
-    /* Emit Huffman tables.
-     * Note that emit_dht() suppresses any duplicate tables.
-     */
-    for (i = 0; i < cinfo->comps_in_scan; i++) {
-      compptr = cinfo->cur_comp_info[i];
-      if (cinfo->progressive_mode) {
-	/* Progressive mode: only DC or only AC tables are used in one scan */
-	if (cinfo->Ss == 0) {
-	  if (cinfo->Ah == 0)	/* DC needs no table for refinement scan */
-	    emit_dht(cinfo, compptr->dc_tbl_no, FALSE);
-	} else {
-	  emit_dht(cinfo, compptr->ac_tbl_no, TRUE);
-	}
-      } else {
-	/* Sequential mode: need both DC and AC tables */
-	emit_dht(cinfo, compptr->dc_tbl_no, FALSE);
-	emit_dht(cinfo, compptr->ac_tbl_no, TRUE);
-      }
-    }
-  }
-
-  /* Emit DRI if required --- note that DRI value could change for each scan.
-   * We avoid wasting space with unnecessary DRIs, however.
-   */
-  if (cinfo->restart_interval != marker->last_restart_interval) {
-    emit_dri(cinfo);
-    marker->last_restart_interval = cinfo->restart_interval;
-  }
-
-  emit_sos(cinfo);
-}
-
-
-/*
- * Write datastream trailer.
- */
-
-METHODDEF(void)
-write_file_trailer (j_compress_ptr cinfo)
-{
-  emit_marker(cinfo, M_EOI);
-}
-
-
-/*
- * Write an abbreviated table-specification datastream.
- * This consists of SOI, DQT and DHT tables, and EOI.
- * Any table that is defined and not marked sent_table = TRUE will be
- * emitted.  Note that all tables will be marked sent_table = TRUE at exit.
- */
-
-METHODDEF(void)
-write_tables_only (j_compress_ptr cinfo)
-{
-  int i;
-
-  emit_marker(cinfo, M_SOI);
-
-  for (i = 0; i < NUM_QUANT_TBLS; i++) {
-    if (cinfo->quant_tbl_ptrs[i] != NULL)
-      (void) emit_dqt(cinfo, i);
-  }
-
-  if (! cinfo->arith_code) {
-    for (i = 0; i < NUM_HUFF_TBLS; i++) {
-      if (cinfo->dc_huff_tbl_ptrs[i] != NULL)
-	emit_dht(cinfo, i, FALSE);
-      if (cinfo->ac_huff_tbl_ptrs[i] != NULL)
-	emit_dht(cinfo, i, TRUE);
-    }
-  }
-
-  emit_marker(cinfo, M_EOI);
-}
-
-
-/*
- * Initialize the marker writer module.
- */
-
-GLOBAL(void)
-jinit_marker_writer (j_compress_ptr cinfo)
-{
-  my_marker_ptr marker;
-
-  /* Create the subobject */
-  marker = (my_marker_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_marker_writer));
-  cinfo->marker = (struct jpeg_marker_writer *) marker;
-  /* Initialize method pointers */
-  marker->pub.write_file_header = write_file_header;
-  marker->pub.write_frame_header = write_frame_header;
-  marker->pub.write_scan_header = write_scan_header;
-  marker->pub.write_file_trailer = write_file_trailer;
-  marker->pub.write_tables_only = write_tables_only;
-  marker->pub.write_marker_header = write_marker_header;
-  marker->pub.write_marker_byte = write_marker_byte;
-  /* Initialize private state */
-  marker->last_restart_interval = 0;
-}
diff --git a/src/3rdparty/libjpeg/jcmaster.c b/src/3rdparty/libjpeg/jcmaster.c
deleted file mode 100644
index aab4020b8..000000000
--- a/src/3rdparty/libjpeg/jcmaster.c
+++ /dev/null
@@ -1,590 +0,0 @@
-/*
- * jcmaster.c
- *
- * Copyright (C) 1991-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains master control logic for the JPEG compressor.
- * These routines are concerned with parameter validation, initial setup,
- * and inter-pass control (determining the number of passes and the work 
- * to be done in each pass).
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/* Private state */
-
-typedef enum {
-	main_pass,		/* input data, also do first output step */
-	huff_opt_pass,		/* Huffman code optimization pass */
-	output_pass		/* data output pass */
-} c_pass_type;
-
-typedef struct {
-  struct jpeg_comp_master pub;	/* public fields */
-
-  c_pass_type pass_type;	/* the type of the current pass */
-
-  int pass_number;		/* # of passes completed */
-  int total_passes;		/* total # of passes needed */
-
-  int scan_number;		/* current index in scan_info[] */
-} my_comp_master;
-
-typedef my_comp_master * my_master_ptr;
-
-
-/*
- * Support routines that do various essential calculations.
- */
-
-LOCAL(void)
-initial_setup (j_compress_ptr cinfo)
-/* Do computations that are needed before master selection phase */
-{
-  int ci;
-  jpeg_component_info *compptr;
-  long samplesperrow;
-  JDIMENSION jd_samplesperrow;
-
-  /* Sanity check on image dimensions */
-  if (cinfo->image_height <= 0 || cinfo->image_width <= 0
-      || cinfo->num_components <= 0 || cinfo->input_components <= 0)
-    ERREXIT(cinfo, JERR_EMPTY_IMAGE);
-
-  /* Make sure image isn't bigger than I can handle */
-  if ((long) cinfo->image_height > (long) JPEG_MAX_DIMENSION ||
-      (long) cinfo->image_width > (long) JPEG_MAX_DIMENSION)
-    ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) JPEG_MAX_DIMENSION);
-
-  /* Width of an input scanline must be representable as JDIMENSION. */
-  samplesperrow = (long) cinfo->image_width * (long) cinfo->input_components;
-  jd_samplesperrow = (JDIMENSION) samplesperrow;
-  if ((long) jd_samplesperrow != samplesperrow)
-    ERREXIT(cinfo, JERR_WIDTH_OVERFLOW);
-
-  /* For now, precision must match compiled-in value... */
-  if (cinfo->data_precision != BITS_IN_JSAMPLE)
-    ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
-
-  /* Check that number of components won't exceed internal array sizes */
-  if (cinfo->num_components > MAX_COMPONENTS)
-    ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components,
-	     MAX_COMPONENTS);
-
-  /* Compute maximum sampling factors; check factor validity */
-  cinfo->max_h_samp_factor = 1;
-  cinfo->max_v_samp_factor = 1;
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    if (compptr->h_samp_factor<=0 || compptr->h_samp_factor>MAX_SAMP_FACTOR ||
-	compptr->v_samp_factor<=0 || compptr->v_samp_factor>MAX_SAMP_FACTOR)
-      ERREXIT(cinfo, JERR_BAD_SAMPLING);
-    cinfo->max_h_samp_factor = MAX(cinfo->max_h_samp_factor,
-				   compptr->h_samp_factor);
-    cinfo->max_v_samp_factor = MAX(cinfo->max_v_samp_factor,
-				   compptr->v_samp_factor);
-  }
-
-  /* Compute dimensions of components */
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    /* Fill in the correct component_index value; don't rely on application */
-    compptr->component_index = ci;
-    /* For compression, we never do DCT scaling. */
-    compptr->DCT_scaled_size = DCTSIZE;
-    /* Size in DCT blocks */
-    compptr->width_in_blocks = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * (long) compptr->h_samp_factor,
-		    (long) (cinfo->max_h_samp_factor * DCTSIZE));
-    compptr->height_in_blocks = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * (long) compptr->v_samp_factor,
-		    (long) (cinfo->max_v_samp_factor * DCTSIZE));
-    /* Size in samples */
-    compptr->downsampled_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * (long) compptr->h_samp_factor,
-		    (long) cinfo->max_h_samp_factor);
-    compptr->downsampled_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * (long) compptr->v_samp_factor,
-		    (long) cinfo->max_v_samp_factor);
-    /* Mark component needed (this flag isn't actually used for compression) */
-    compptr->component_needed = TRUE;
-  }
-
-  /* Compute number of fully interleaved MCU rows (number of times that
-   * main controller will call coefficient controller).
-   */
-  cinfo->total_iMCU_rows = (JDIMENSION)
-    jdiv_round_up((long) cinfo->image_height,
-		  (long) (cinfo->max_v_samp_factor*DCTSIZE));
-}
-
-
-#ifdef C_MULTISCAN_FILES_SUPPORTED
-
-LOCAL(void)
-validate_script (j_compress_ptr cinfo)
-/* Verify that the scan script in cinfo->scan_info[] is valid; also
- * determine whether it uses progressive JPEG, and set cinfo->progressive_mode.
- */
-{
-  const jpeg_scan_info * scanptr;
-  int scanno, ncomps, ci, coefi, thisi;
-  int Ss, Se, Ah, Al;
-  boolean component_sent[MAX_COMPONENTS];
-#ifdef C_PROGRESSIVE_SUPPORTED
-  int * last_bitpos_ptr;
-  int last_bitpos[MAX_COMPONENTS][DCTSIZE2];
-  /* -1 until that coefficient has been seen; then last Al for it */
-#endif
-
-  if (cinfo->num_scans <= 0)
-    ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, 0);
-
-  /* For sequential JPEG, all scans must have Ss=0, Se=DCTSIZE2-1;
-   * for progressive JPEG, no scan can have this.
-   */
-  scanptr = cinfo->scan_info;
-  if (scanptr->Ss != 0 || scanptr->Se != DCTSIZE2-1) {
-#ifdef C_PROGRESSIVE_SUPPORTED
-    cinfo->progressive_mode = TRUE;
-    last_bitpos_ptr = & last_bitpos[0][0];
-    for (ci = 0; ci < cinfo->num_components; ci++) 
-      for (coefi = 0; coefi < DCTSIZE2; coefi++)
-	*last_bitpos_ptr++ = -1;
-#else
-    ERREXIT(cinfo, JERR_NOT_COMPILED);
-#endif
-  } else {
-    cinfo->progressive_mode = FALSE;
-    for (ci = 0; ci < cinfo->num_components; ci++) 
-      component_sent[ci] = FALSE;
-  }
-
-  for (scanno = 1; scanno <= cinfo->num_scans; scanptr++, scanno++) {
-    /* Validate component indexes */
-    ncomps = scanptr->comps_in_scan;
-    if (ncomps <= 0 || ncomps > MAX_COMPS_IN_SCAN)
-      ERREXIT2(cinfo, JERR_COMPONENT_COUNT, ncomps, MAX_COMPS_IN_SCAN);
-    for (ci = 0; ci < ncomps; ci++) {
-      thisi = scanptr->component_index[ci];
-      if (thisi < 0 || thisi >= cinfo->num_components)
-	ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, scanno);
-      /* Components must appear in SOF order within each scan */
-      if (ci > 0 && thisi <= scanptr->component_index[ci-1])
-	ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, scanno);
-    }
-    /* Validate progression parameters */
-    Ss = scanptr->Ss;
-    Se = scanptr->Se;
-    Ah = scanptr->Ah;
-    Al = scanptr->Al;
-    if (cinfo->progressive_mode) {
-#ifdef C_PROGRESSIVE_SUPPORTED
-      /* The JPEG spec simply gives the ranges 0..13 for Ah and Al, but that
-       * seems wrong: the upper bound ought to depend on data precision.
-       * Perhaps they really meant 0..N+1 for N-bit precision.
-       * Here we allow 0..10 for 8-bit data; Al larger than 10 results in
-       * out-of-range reconstructed DC values during the first DC scan,
-       * which might cause problems for some decoders.
-       */
-#if BITS_IN_JSAMPLE == 8
-#define MAX_AH_AL 10
-#else
-#define MAX_AH_AL 13
-#endif
-      if (Ss < 0 || Ss >= DCTSIZE2 || Se < Ss || Se >= DCTSIZE2 ||
-	  Ah < 0 || Ah > MAX_AH_AL || Al < 0 || Al > MAX_AH_AL)
-	ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
-      if (Ss == 0) {
-	if (Se != 0)		/* DC and AC together not OK */
-	  ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
-      } else {
-	if (ncomps != 1)	/* AC scans must be for only one component */
-	  ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
-      }
-      for (ci = 0; ci < ncomps; ci++) {
-	last_bitpos_ptr = & last_bitpos[scanptr->component_index[ci]][0];
-	if (Ss != 0 && last_bitpos_ptr[0] < 0) /* AC without prior DC scan */
-	  ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
-	for (coefi = Ss; coefi <= Se; coefi++) {
-	  if (last_bitpos_ptr[coefi] < 0) {
-	    /* first scan of this coefficient */
-	    if (Ah != 0)
-	      ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
-	  } else {
-	    /* not first scan */
-	    if (Ah != last_bitpos_ptr[coefi] || Al != Ah-1)
-	      ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
-	  }
-	  last_bitpos_ptr[coefi] = Al;
-	}
-      }
-#endif
-    } else {
-      /* For sequential JPEG, all progression parameters must be these: */
-      if (Ss != 0 || Se != DCTSIZE2-1 || Ah != 0 || Al != 0)
-	ERREXIT1(cinfo, JERR_BAD_PROG_SCRIPT, scanno);
-      /* Make sure components are not sent twice */
-      for (ci = 0; ci < ncomps; ci++) {
-	thisi = scanptr->component_index[ci];
-	if (component_sent[thisi])
-	  ERREXIT1(cinfo, JERR_BAD_SCAN_SCRIPT, scanno);
-	component_sent[thisi] = TRUE;
-      }
-    }
-  }
-
-  /* Now verify that everything got sent. */
-  if (cinfo->progressive_mode) {
-#ifdef C_PROGRESSIVE_SUPPORTED
-    /* For progressive mode, we only check that at least some DC data
-     * got sent for each component; the spec does not require that all bits
-     * of all coefficients be transmitted.  Would it be wiser to enforce
-     * transmission of all coefficient bits??
-     */
-    for (ci = 0; ci < cinfo->num_components; ci++) {
-      if (last_bitpos[ci][0] < 0)
-	ERREXIT(cinfo, JERR_MISSING_DATA);
-    }
-#endif
-  } else {
-    for (ci = 0; ci < cinfo->num_components; ci++) {
-      if (! component_sent[ci])
-	ERREXIT(cinfo, JERR_MISSING_DATA);
-    }
-  }
-}
-
-#endif /* C_MULTISCAN_FILES_SUPPORTED */
-
-
-LOCAL(void)
-select_scan_parameters (j_compress_ptr cinfo)
-/* Set up the scan parameters for the current scan */
-{
-  int ci;
-
-#ifdef C_MULTISCAN_FILES_SUPPORTED
-  if (cinfo->scan_info != NULL) {
-    /* Prepare for current scan --- the script is already validated */
-    my_master_ptr master = (my_master_ptr) cinfo->master;
-    const jpeg_scan_info * scanptr = cinfo->scan_info + master->scan_number;
-
-    cinfo->comps_in_scan = scanptr->comps_in_scan;
-    for (ci = 0; ci < scanptr->comps_in_scan; ci++) {
-      cinfo->cur_comp_info[ci] =
-	&cinfo->comp_info[scanptr->component_index[ci]];
-    }
-    cinfo->Ss = scanptr->Ss;
-    cinfo->Se = scanptr->Se;
-    cinfo->Ah = scanptr->Ah;
-    cinfo->Al = scanptr->Al;
-  }
-  else
-#endif
-  {
-    /* Prepare for single sequential-JPEG scan containing all components */
-    if (cinfo->num_components > MAX_COMPS_IN_SCAN)
-      ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components,
-	       MAX_COMPS_IN_SCAN);
-    cinfo->comps_in_scan = cinfo->num_components;
-    for (ci = 0; ci < cinfo->num_components; ci++) {
-      cinfo->cur_comp_info[ci] = &cinfo->comp_info[ci];
-    }
-    cinfo->Ss = 0;
-    cinfo->Se = DCTSIZE2-1;
-    cinfo->Ah = 0;
-    cinfo->Al = 0;
-  }
-}
-
-
-LOCAL(void)
-per_scan_setup (j_compress_ptr cinfo)
-/* Do computations that are needed before processing a JPEG scan */
-/* cinfo->comps_in_scan and cinfo->cur_comp_info[] are already set */
-{
-  int ci, mcublks, tmp;
-  jpeg_component_info *compptr;
-  
-  if (cinfo->comps_in_scan == 1) {
-    
-    /* Noninterleaved (single-component) scan */
-    compptr = cinfo->cur_comp_info[0];
-    
-    /* Overall image size in MCUs */
-    cinfo->MCUs_per_row = compptr->width_in_blocks;
-    cinfo->MCU_rows_in_scan = compptr->height_in_blocks;
-    
-    /* For noninterleaved scan, always one block per MCU */
-    compptr->MCU_width = 1;
-    compptr->MCU_height = 1;
-    compptr->MCU_blocks = 1;
-    compptr->MCU_sample_width = DCTSIZE;
-    compptr->last_col_width = 1;
-    /* For noninterleaved scans, it is convenient to define last_row_height
-     * as the number of block rows present in the last iMCU row.
-     */
-    tmp = (int) (compptr->height_in_blocks % compptr->v_samp_factor);
-    if (tmp == 0) tmp = compptr->v_samp_factor;
-    compptr->last_row_height = tmp;
-    
-    /* Prepare array describing MCU composition */
-    cinfo->blocks_in_MCU = 1;
-    cinfo->MCU_membership[0] = 0;
-    
-  } else {
-    
-    /* Interleaved (multi-component) scan */
-    if (cinfo->comps_in_scan <= 0 || cinfo->comps_in_scan > MAX_COMPS_IN_SCAN)
-      ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->comps_in_scan,
-	       MAX_COMPS_IN_SCAN);
-    
-    /* Overall image size in MCUs */
-    cinfo->MCUs_per_row = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width,
-		    (long) (cinfo->max_h_samp_factor*DCTSIZE));
-    cinfo->MCU_rows_in_scan = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height,
-		    (long) (cinfo->max_v_samp_factor*DCTSIZE));
-    
-    cinfo->blocks_in_MCU = 0;
-    
-    for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-      compptr = cinfo->cur_comp_info[ci];
-      /* Sampling factors give # of blocks of component in each MCU */
-      compptr->MCU_width = compptr->h_samp_factor;
-      compptr->MCU_height = compptr->v_samp_factor;
-      compptr->MCU_blocks = compptr->MCU_width * compptr->MCU_height;
-      compptr->MCU_sample_width = compptr->MCU_width * DCTSIZE;
-      /* Figure number of non-dummy blocks in last MCU column & row */
-      tmp = (int) (compptr->width_in_blocks % compptr->MCU_width);
-      if (tmp == 0) tmp = compptr->MCU_width;
-      compptr->last_col_width = tmp;
-      tmp = (int) (compptr->height_in_blocks % compptr->MCU_height);
-      if (tmp == 0) tmp = compptr->MCU_height;
-      compptr->last_row_height = tmp;
-      /* Prepare array describing MCU composition */
-      mcublks = compptr->MCU_blocks;
-      if (cinfo->blocks_in_MCU + mcublks > C_MAX_BLOCKS_IN_MCU)
-	ERREXIT(cinfo, JERR_BAD_MCU_SIZE);
-      while (mcublks-- > 0) {
-	cinfo->MCU_membership[cinfo->blocks_in_MCU++] = ci;
-      }
-    }
-    
-  }
-
-  /* Convert restart specified in rows to actual MCU count. */
-  /* Note that count must fit in 16 bits, so we provide limiting. */
-  if (cinfo->restart_in_rows > 0) {
-    long nominal = (long) cinfo->restart_in_rows * (long) cinfo->MCUs_per_row;
-    cinfo->restart_interval = (unsigned int) MIN(nominal, 65535L);
-  }
-}
-
-
-/*
- * Per-pass setup.
- * This is called at the beginning of each pass.  We determine which modules
- * will be active during this pass and give them appropriate start_pass calls.
- * We also set is_last_pass to indicate whether any more passes will be
- * required.
- */
-
-METHODDEF(void)
-prepare_for_pass (j_compress_ptr cinfo)
-{
-  my_master_ptr master = (my_master_ptr) cinfo->master;
-
-  switch (master->pass_type) {
-  case main_pass:
-    /* Initial pass: will collect input data, and do either Huffman
-     * optimization or data output for the first scan.
-     */
-    select_scan_parameters(cinfo);
-    per_scan_setup(cinfo);
-    if (! cinfo->raw_data_in) {
-      (*cinfo->cconvert->start_pass) (cinfo);
-      (*cinfo->downsample->start_pass) (cinfo);
-      (*cinfo->prep->start_pass) (cinfo, JBUF_PASS_THRU);
-    }
-    (*cinfo->fdct->start_pass) (cinfo);
-    (*cinfo->entropy->start_pass) (cinfo, cinfo->optimize_coding);
-    (*cinfo->coef->start_pass) (cinfo,
-				(master->total_passes > 1 ?
-				 JBUF_SAVE_AND_PASS : JBUF_PASS_THRU));
-    (*cinfo->main->start_pass) (cinfo, JBUF_PASS_THRU);
-    if (cinfo->optimize_coding) {
-      /* No immediate data output; postpone writing frame/scan headers */
-      master->pub.call_pass_startup = FALSE;
-    } else {
-      /* Will write frame/scan headers at first jpeg_write_scanlines call */
-      master->pub.call_pass_startup = TRUE;
-    }
-    break;
-#ifdef ENTROPY_OPT_SUPPORTED
-  case huff_opt_pass:
-    /* Do Huffman optimization for a scan after the first one. */
-    select_scan_parameters(cinfo);
-    per_scan_setup(cinfo);
-    if (cinfo->Ss != 0 || cinfo->Ah == 0 || cinfo->arith_code) {
-      (*cinfo->entropy->start_pass) (cinfo, TRUE);
-      (*cinfo->coef->start_pass) (cinfo, JBUF_CRANK_DEST);
-      master->pub.call_pass_startup = FALSE;
-      break;
-    }
-    /* Special case: Huffman DC refinement scans need no Huffman table
-     * and therefore we can skip the optimization pass for them.
-     */
-    master->pass_type = output_pass;
-    master->pass_number++;
-    /*FALLTHROUGH*/
-#endif
-  case output_pass:
-    /* Do a data-output pass. */
-    /* We need not repeat per-scan setup if prior optimization pass did it. */
-    if (! cinfo->optimize_coding) {
-      select_scan_parameters(cinfo);
-      per_scan_setup(cinfo);
-    }
-    (*cinfo->entropy->start_pass) (cinfo, FALSE);
-    (*cinfo->coef->start_pass) (cinfo, JBUF_CRANK_DEST);
-    /* We emit frame/scan headers now */
-    if (master->scan_number == 0)
-      (*cinfo->marker->write_frame_header) (cinfo);
-    (*cinfo->marker->write_scan_header) (cinfo);
-    master->pub.call_pass_startup = FALSE;
-    break;
-  default:
-    ERREXIT(cinfo, JERR_NOT_COMPILED);
-  }
-
-  master->pub.is_last_pass = (master->pass_number == master->total_passes-1);
-
-  /* Set up progress monitor's pass info if present */
-  if (cinfo->progress != NULL) {
-    cinfo->progress->completed_passes = master->pass_number;
-    cinfo->progress->total_passes = master->total_passes;
-  }
-}
-
-
-/*
- * Special start-of-pass hook.
- * This is called by jpeg_write_scanlines if call_pass_startup is TRUE.
- * In single-pass processing, we need this hook because we don't want to
- * write frame/scan headers during jpeg_start_compress; we want to let the
- * application write COM markers etc. between jpeg_start_compress and the
- * jpeg_write_scanlines loop.
- * In multi-pass processing, this routine is not used.
- */
-
-METHODDEF(void)
-pass_startup (j_compress_ptr cinfo)
-{
-  cinfo->master->call_pass_startup = FALSE; /* reset flag so call only once */
-
-  (*cinfo->marker->write_frame_header) (cinfo);
-  (*cinfo->marker->write_scan_header) (cinfo);
-}
-
-
-/*
- * Finish up at end of pass.
- */
-
-METHODDEF(void)
-finish_pass_master (j_compress_ptr cinfo)
-{
-  my_master_ptr master = (my_master_ptr) cinfo->master;
-
-  /* The entropy coder always needs an end-of-pass call,
-   * either to analyze statistics or to flush its output buffer.
-   */
-  (*cinfo->entropy->finish_pass) (cinfo);
-
-  /* Update state for next pass */
-  switch (master->pass_type) {
-  case main_pass:
-    /* next pass is either output of scan 0 (after optimization)
-     * or output of scan 1 (if no optimization).
-     */
-    master->pass_type = output_pass;
-    if (! cinfo->optimize_coding)
-      master->scan_number++;
-    break;
-  case huff_opt_pass:
-    /* next pass is always output of current scan */
-    master->pass_type = output_pass;
-    break;
-  case output_pass:
-    /* next pass is either optimization or output of next scan */
-    if (cinfo->optimize_coding)
-      master->pass_type = huff_opt_pass;
-    master->scan_number++;
-    break;
-  }
-
-  master->pass_number++;
-}
-
-
-/*
- * Initialize master compression control.
- */
-
-GLOBAL(void)
-jinit_c_master_control (j_compress_ptr cinfo, boolean transcode_only)
-{
-  my_master_ptr master;
-
-  master = (my_master_ptr)
-      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				  SIZEOF(my_comp_master));
-  cinfo->master = (struct jpeg_comp_master *) master;
-  master->pub.prepare_for_pass = prepare_for_pass;
-  master->pub.pass_startup = pass_startup;
-  master->pub.finish_pass = finish_pass_master;
-  master->pub.is_last_pass = FALSE;
-
-  /* Validate parameters, determine derived values */
-  initial_setup(cinfo);
-
-  if (cinfo->scan_info != NULL) {
-#ifdef C_MULTISCAN_FILES_SUPPORTED
-    validate_script(cinfo);
-#else
-    ERREXIT(cinfo, JERR_NOT_COMPILED);
-#endif
-  } else {
-    cinfo->progressive_mode = FALSE;
-    cinfo->num_scans = 1;
-  }
-
-  if (cinfo->progressive_mode)	/*  TEMPORARY HACK ??? */
-    cinfo->optimize_coding = TRUE; /* assume default tables no good for progressive mode */
-
-  /* Initialize my private state */
-  if (transcode_only) {
-    /* no main pass in transcoding */
-    if (cinfo->optimize_coding)
-      master->pass_type = huff_opt_pass;
-    else
-      master->pass_type = output_pass;
-  } else {
-    /* for normal compression, first pass is always this type: */
-    master->pass_type = main_pass;
-  }
-  master->scan_number = 0;
-  master->pass_number = 0;
-  if (cinfo->optimize_coding)
-    master->total_passes = cinfo->num_scans * 2;
-  else
-    master->total_passes = cinfo->num_scans;
-}
diff --git a/src/3rdparty/libjpeg/jcomapi.c b/src/3rdparty/libjpeg/jcomapi.c
deleted file mode 100644
index a1f7fcb49..000000000
--- a/src/3rdparty/libjpeg/jcomapi.c
+++ /dev/null
@@ -1,106 +0,0 @@
-/*
- * jcomapi.c
- *
- * Copyright (C) 1994-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains application interface routines that are used for both
- * compression and decompression.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/*
- * Abort processing of a JPEG compression or decompression operation,
- * but don't destroy the object itself.
- *
- * For this, we merely clean up all the nonpermanent memory pools.
- * Note that temp files (virtual arrays) are not allowed to belong to
- * the permanent pool, so we will be able to close all temp files here.
- * Closing a data source or destination, if necessary, is the application's
- * responsibility.
- */
-
-GLOBAL(void)
-jpeg_abort (j_common_ptr cinfo)
-{
-  int pool;
-
-  /* Do nothing if called on a not-initialized or destroyed JPEG object. */
-  if (cinfo->mem == NULL)
-    return;
-
-  /* Releasing pools in reverse order might help avoid fragmentation
-   * with some (brain-damaged) malloc libraries.
-   */
-  for (pool = JPOOL_NUMPOOLS-1; pool > JPOOL_PERMANENT; pool--) {
-    (*cinfo->mem->free_pool) (cinfo, pool);
-  }
-
-  /* Reset overall state for possible reuse of object */
-  if (cinfo->is_decompressor) {
-    cinfo->global_state = DSTATE_START;
-    /* Try to keep application from accessing now-deleted marker list.
-     * A bit kludgy to do it here, but this is the most central place.
-     */
-    ((j_decompress_ptr) cinfo)->marker_list = NULL;
-  } else {
-    cinfo->global_state = CSTATE_START;
-  }
-}
-
-
-/*
- * Destruction of a JPEG object.
- *
- * Everything gets deallocated except the master jpeg_compress_struct itself
- * and the error manager struct.  Both of these are supplied by the application
- * and must be freed, if necessary, by the application.  (Often they are on
- * the stack and so don't need to be freed anyway.)
- * Closing a data source or destination, if necessary, is the application's
- * responsibility.
- */
-
-GLOBAL(void)
-jpeg_destroy (j_common_ptr cinfo)
-{
-  /* We need only tell the memory manager to release everything. */
-  /* NB: mem pointer is NULL if memory mgr failed to initialize. */
-  if (cinfo->mem != NULL)
-    (*cinfo->mem->self_destruct) (cinfo);
-  cinfo->mem = NULL;		/* be safe if jpeg_destroy is called twice */
-  cinfo->global_state = 0;	/* mark it destroyed */
-}
-
-
-/*
- * Convenience routines for allocating quantization and Huffman tables.
- * (Would jutils.c be a more reasonable place to put these?)
- */
-
-GLOBAL(JTQUANT_TBL *)
-jpeg_alloc_quant_table (j_common_ptr cinfo)
-{
-  JTQUANT_TBL *tbl;
-
-  tbl = (JTQUANT_TBL *)
-    (*cinfo->mem->alloc_small) (cinfo, JPOOL_PERMANENT, SIZEOF(JTQUANT_TBL));
-  tbl->sent_table = FALSE;	/* make sure this is false in any new table */
-  return tbl;
-}
-
-
-GLOBAL(JHUFF_TBL *)
-jpeg_alloc_huff_table (j_common_ptr cinfo)
-{
-  JHUFF_TBL *tbl;
-
-  tbl = (JHUFF_TBL *)
-    (*cinfo->mem->alloc_small) (cinfo, JPOOL_PERMANENT, SIZEOF(JHUFF_TBL));
-  tbl->sent_table = FALSE;	/* make sure this is false in any new table */
-  return tbl;
-}
diff --git a/src/3rdparty/libjpeg/jconfig.bcc b/src/3rdparty/libjpeg/jconfig.bcc
deleted file mode 100644
index c6c53ff63..000000000
--- a/src/3rdparty/libjpeg/jconfig.bcc
+++ /dev/null
@@ -1,48 +0,0 @@
-/* jconfig.bcc --- jconfig.h for Borland C (Turbo C) on MS-DOS or OS/2. */
-/* see jconfig.doc for explanations */
-
-#define HAVE_PROTOTYPES
-#define HAVE_UNSIGNED_CHAR
-#define HAVE_UNSIGNED_SHORT
-/* #define void char */
-/* #define const */
-#undef CHAR_IS_UNSIGNED
-#define HAVE_STDDEF_H
-#define HAVE_STDLIB_H
-#undef NEED_BSD_STRINGS
-#undef NEED_SYS_TYPES_H
-#ifdef __MSDOS__
-#define NEED_FAR_POINTERS	/* for small or medium memory model */
-#endif
-#undef NEED_SHORT_EXTERNAL_NAMES
-#undef INCOMPLETE_TYPES_BROKEN	/* this assumes you have -w-stu in CFLAGS */
-
-#ifdef JPEG_INTERNALS
-
-#undef RIGHT_SHIFT_IS_UNSIGNED
-
-#ifdef __MSDOS__
-#define USE_MSDOS_MEMMGR	/* Define this if you use jmemdos.c */
-#define MAX_ALLOC_CHUNK 65520L	/* Maximum request to malloc() */
-#define USE_FMEM		/* Borland has _fmemcpy() and _fmemset() */
-#endif
-
-#endif /* JPEG_INTERNALS */
-
-#ifdef JPEG_CJPEG_DJPEG
-
-#define BMP_SUPPORTED		/* BMP image file format */
-#define GIF_SUPPORTED		/* GIF image file format */
-#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */
-#undef RLE_SUPPORTED		/* Utah RLE image file format */
-#define TARGA_SUPPORTED		/* Targa image file format */
-
-#define TWO_FILE_COMMANDLINE
-#define USE_SETMODE		/* Borland has setmode() */
-#ifdef __MSDOS__
-#define NEED_SIGNAL_CATCHER	/* Define this if you use jmemdos.c */
-#endif
-#undef DONT_USE_B_MODE
-#undef PROGRESS_REPORT		/* optional */
-
-#endif /* JPEG_CJPEG_DJPEG */
diff --git a/src/3rdparty/libjpeg/jconfig.cfg b/src/3rdparty/libjpeg/jconfig.cfg
deleted file mode 100644
index 36a04fa84..000000000
--- a/src/3rdparty/libjpeg/jconfig.cfg
+++ /dev/null
@@ -1,44 +0,0 @@
-/* jconfig.cfg --- source file edited by configure script */
-/* see jconfig.doc for explanations */
-
-#undef HAVE_PROTOTYPES
-#undef HAVE_UNSIGNED_CHAR
-#undef HAVE_UNSIGNED_SHORT
-#undef void
-#undef const
-#undef CHAR_IS_UNSIGNED
-#undef HAVE_STDDEF_H
-#undef HAVE_STDLIB_H
-#undef NEED_BSD_STRINGS
-#undef NEED_SYS_TYPES_H
-#undef NEED_FAR_POINTERS
-#undef NEED_SHORT_EXTERNAL_NAMES
-/* Define this if you get warnings about undefined structures. */
-#undef INCOMPLETE_TYPES_BROKEN
-
-#ifdef JPEG_INTERNALS
-
-#undef RIGHT_SHIFT_IS_UNSIGNED
-#undef INLINE
-/* These are for configuring the JPEG memory manager. */
-#undef DEFAULT_MAX_MEM
-#undef NO_MKTEMP
-
-#endif /* JPEG_INTERNALS */
-
-#ifdef JPEG_CJPEG_DJPEG
-
-#define BMP_SUPPORTED		/* BMP image file format */
-#define GIF_SUPPORTED		/* GIF image file format */
-#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */
-#undef RLE_SUPPORTED		/* Utah RLE image file format */
-#define TARGA_SUPPORTED		/* Targa image file format */
-
-#undef TWO_FILE_COMMANDLINE
-#undef NEED_SIGNAL_CATCHER
-#undef DONT_USE_B_MODE
-
-/* Define this if you want percent-done progress reports from cjpeg/djpeg. */
-#undef PROGRESS_REPORT
-
-#endif /* JPEG_CJPEG_DJPEG */
diff --git a/src/3rdparty/libjpeg/jconfig.dj b/src/3rdparty/libjpeg/jconfig.dj
deleted file mode 100644
index f759a9dbd..000000000
--- a/src/3rdparty/libjpeg/jconfig.dj
+++ /dev/null
@@ -1,38 +0,0 @@
-/* jconfig.dj --- jconfig.h for DJGPP (Delorie's GNU C port) on MS-DOS. */
-/* see jconfig.doc for explanations */
-
-#define HAVE_PROTOTYPES
-#define HAVE_UNSIGNED_CHAR
-#define HAVE_UNSIGNED_SHORT
-/* #define void char */
-/* #define const */
-#undef CHAR_IS_UNSIGNED
-#define HAVE_STDDEF_H
-#define HAVE_STDLIB_H
-#undef NEED_BSD_STRINGS
-#undef NEED_SYS_TYPES_H
-#undef NEED_FAR_POINTERS	/* DJGPP uses flat 32-bit addressing */
-#undef NEED_SHORT_EXTERNAL_NAMES
-#undef INCOMPLETE_TYPES_BROKEN
-
-#ifdef JPEG_INTERNALS
-
-#undef RIGHT_SHIFT_IS_UNSIGNED
-
-#endif /* JPEG_INTERNALS */
-
-#ifdef JPEG_CJPEG_DJPEG
-
-#define BMP_SUPPORTED		/* BMP image file format */
-#define GIF_SUPPORTED		/* GIF image file format */
-#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */
-#undef RLE_SUPPORTED		/* Utah RLE image file format */
-#define TARGA_SUPPORTED		/* Targa image file format */
-
-#undef TWO_FILE_COMMANDLINE	/* optional */
-#define USE_SETMODE		/* Needed to make one-file style work in DJGPP */
-#undef NEED_SIGNAL_CATCHER	/* Define this if you use jmemname.c */
-#undef DONT_USE_B_MODE
-#undef PROGRESS_REPORT		/* optional */
-
-#endif /* JPEG_CJPEG_DJPEG */
diff --git a/src/3rdparty/libjpeg/jconfig.doc b/src/3rdparty/libjpeg/jconfig.doc
deleted file mode 100644
index c18d1c064..000000000
--- a/src/3rdparty/libjpeg/jconfig.doc
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * jconfig.doc
- *
- * Copyright (C) 1991-1994, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file documents the configuration options that are required to
- * customize the JPEG software for a particular system.
- *
- * The actual configuration options for a particular installation are stored
- * in jconfig.h.  On many machines, jconfig.h can be generated automatically
- * or copied from one of the "canned" jconfig files that we supply.  But if
- * you need to generate a jconfig.h file by hand, this file tells you how.
- *
- * DO NOT EDIT THIS FILE --- IT WON'T ACCOMPLISH ANYTHING.
- * EDIT A COPY NAMED JCONFIG.H.
- */
-
-
-/*
- * These symbols indicate the properties of your machine or compiler.
- * #define the symbol if yes, #undef it if no.
- */
-
-/* Does your compiler support function prototypes?
- * (If not, you also need to use ansi2knr, see install.doc)
- */
-#define HAVE_PROTOTYPES
-
-/* Does your compiler support the declaration "unsigned char" ?
- * How about "unsigned short" ?
- */
-#define HAVE_UNSIGNED_CHAR
-#define HAVE_UNSIGNED_SHORT
-
-/* Define "void" as "char" if your compiler doesn't know about type void.
- * NOTE: be sure to define void such that "void *" represents the most general
- * pointer type, e.g., that returned by malloc().
- */
-/* #define void char */
-
-/* Define "const" as empty if your compiler doesn't know the "const" keyword.
- */
-/* #define const */
-
-/* Define this if an ordinary "char" type is unsigned.
- * If you're not sure, leaving it undefined will work at some cost in speed.
- * If you defined HAVE_UNSIGNED_CHAR then the speed difference is minimal.
- */
-#undef CHAR_IS_UNSIGNED
-
-/* Define this if your system has an ANSI-conforming <stddef.h> file.
- */
-#define HAVE_STDDEF_H
-
-/* Define this if your system has an ANSI-conforming <stdlib.h> file.
- */
-#define HAVE_STDLIB_H
-
-/* Define this if your system does not have an ANSI/SysV <string.h>,
- * but does have a BSD-style <strings.h>.
- */
-#undef NEED_BSD_STRINGS
-
-/* Define this if your system does not provide typedef size_t in any of the
- * ANSI-standard places (stddef.h, stdlib.h, or stdio.h), but places it in
- * <sys/types.h> instead.
- */
-#undef NEED_SYS_TYPES_H
-
-/* For 80x86 machines, you need to define NEED_FAR_POINTERS,
- * unless you are using a large-data memory model or 80386 flat-memory mode.
- * On less brain-damaged CPUs this symbol must not be defined.
- * (Defining this symbol causes large data structures to be referenced through
- * "far" pointers and to be allocated with a special version of malloc.)
- */
-#undef NEED_FAR_POINTERS
-
-/* Define this if your linker needs global names to be unique in less
- * than the first 15 characters.
- */
-#undef NEED_SHORT_EXTERNAL_NAMES
-
-/* Although a real ANSI C compiler can deal perfectly well with pointers to
- * unspecified structures (see "incomplete types" in the spec), a few pre-ANSI
- * and pseudo-ANSI compilers get confused.  To keep one of these bozos happy,
- * define INCOMPLETE_TYPES_BROKEN.  This is not recommended unless you
- * actually get "missing structure definition" warnings or errors while
- * compiling the JPEG code.
- */
-#undef INCOMPLETE_TYPES_BROKEN
-
-
-/*
- * The following options affect code selection within the JPEG library,
- * but they don't need to be visible to applications using the library.
- * To minimize application namespace pollution, the symbols won't be
- * defined unless JPEG_INTERNALS has been defined.
- */
-
-#ifdef JPEG_INTERNALS
-
-/* Define this if your compiler implements ">>" on signed values as a logical
- * (unsigned) shift; leave it undefined if ">>" is a signed (arithmetic) shift,
- * which is the normal and rational definition.
- */
-#undef RIGHT_SHIFT_IS_UNSIGNED
-
-
-#endif /* JPEG_INTERNALS */
-
-
-/*
- * The remaining options do not affect the JPEG library proper,
- * but only the sample applications cjpeg/djpeg (see cjpeg.c, djpeg.c).
- * Other applications can ignore these.
- */
-
-#ifdef JPEG_CJPEG_DJPEG
-
-/* These defines indicate which image (non-JPEG) file formats are allowed. */
-
-#define BMP_SUPPORTED		/* BMP image file format */
-#define GIF_SUPPORTED		/* GIF image file format */
-#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */
-#undef RLE_SUPPORTED		/* Utah RLE image file format */
-#define TARGA_SUPPORTED		/* Targa image file format */
-
-/* Define this if you want to name both input and output files on the command
- * line, rather than using stdout and optionally stdin.  You MUST do this if
- * your system can't cope with binary I/O to stdin/stdout.  See comments at
- * head of cjpeg.c or djpeg.c.
- */
-#undef TWO_FILE_COMMANDLINE
-
-/* Define this if your system needs explicit cleanup of temporary files.
- * This is crucial under MS-DOS, where the temporary "files" may be areas
- * of extended memory; on most other systems it's not as important.
- */
-#undef NEED_SIGNAL_CATCHER
-
-/* By default, we open image files with fopen(...,"rb") or fopen(...,"wb").
- * This is necessary on systems that distinguish text files from binary files,
- * and is harmless on most systems that don't.  If you have one of the rare
- * systems that complains about the "b" spec, define this symbol.
- */
-#undef DONT_USE_B_MODE
-
-/* Define this if you want percent-done progress reports from cjpeg/djpeg.
- */
-#undef PROGRESS_REPORT
-
-
-#endif /* JPEG_CJPEG_DJPEG */
diff --git a/src/3rdparty/libjpeg/jconfig.h b/src/3rdparty/libjpeg/jconfig.h
deleted file mode 100644
index 3ba17c63d..000000000
--- a/src/3rdparty/libjpeg/jconfig.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/* jconfig.vc --- jconfig.h for Microsoft Visual C++ on Windows 95 or NT. */
-/* see jconfig.doc for explanations */
-
-#define HAVE_PROTOTYPES
-#define HAVE_UNSIGNED_CHAR
-#define HAVE_UNSIGNED_SHORT
-/* #define void char */
-/* #define const */
-#undef CHAR_IS_UNSIGNED
-#define HAVE_STDDEF_H
-#define HAVE_STDLIB_H
-#undef NEED_BSD_STRINGS
-#undef NEED_SYS_TYPES_H
-#undef NEED_FAR_POINTERS	/* we presume a 32-bit flat memory model */
-#undef NEED_SHORT_EXTERNAL_NAMES
-#undef INCOMPLETE_TYPES_BROKEN
-
-#if defined(_WIN32)
-/* Define "boolean" as unsigned char, not int, per Windows custom */
-#ifndef __RPCNDR_H__		/* don't conflict if rpcndr.h already read */
-typedef unsigned char boolean;
-#endif
-#define HAVE_BOOLEAN		/* prevent jmorecfg.h from redefining it */
-#endif
-
-
-#ifdef JPEG_INTERNALS
-
-#undef RIGHT_SHIFT_IS_UNSIGNED
-
-#endif /* JPEG_INTERNALS */
-
-#ifdef JPEG_CJPEG_DJPEG
-
-#define BMP_SUPPORTED		/* BMP image file format */
-#define GIF_SUPPORTED		/* GIF image file format */
-#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */
-#undef RLE_SUPPORTED		/* Utah RLE image file format */
-#define TARGA_SUPPORTED		/* Targa image file format */
-
-#define TWO_FILE_COMMANDLINE	/* optional */
-#define USE_SETMODE		/* Microsoft has setmode() */
-#undef NEED_SIGNAL_CATCHER
-#undef DONT_USE_B_MODE
-#undef PROGRESS_REPORT		/* optional */
-
-#endif /* JPEG_CJPEG_DJPEG */
diff --git a/src/3rdparty/libjpeg/jconfig.mac b/src/3rdparty/libjpeg/jconfig.mac
deleted file mode 100644
index 0de3efe24..000000000
--- a/src/3rdparty/libjpeg/jconfig.mac
+++ /dev/null
@@ -1,43 +0,0 @@
-/* jconfig.mac --- jconfig.h for CodeWarrior on Apple Macintosh */
-/* see jconfig.doc for explanations */
-
-#define HAVE_PROTOTYPES
-#define HAVE_UNSIGNED_CHAR
-#define HAVE_UNSIGNED_SHORT
-/* #define void char */
-/* #define const */
-#undef CHAR_IS_UNSIGNED
-#define HAVE_STDDEF_H
-#define HAVE_STDLIB_H
-#undef NEED_BSD_STRINGS
-#undef NEED_SYS_TYPES_H
-#undef NEED_FAR_POINTERS
-#undef NEED_SHORT_EXTERNAL_NAMES
-#undef INCOMPLETE_TYPES_BROKEN
-
-#ifdef JPEG_INTERNALS
-
-#undef RIGHT_SHIFT_IS_UNSIGNED
-
-#define USE_MAC_MEMMGR		/* Define this if you use jmemmac.c */
-
-#define ALIGN_TYPE long		/* Needed for 680x0 Macs */
-
-#endif /* JPEG_INTERNALS */
-
-#ifdef JPEG_CJPEG_DJPEG
-
-#define BMP_SUPPORTED		/* BMP image file format */
-#define GIF_SUPPORTED		/* GIF image file format */
-#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */
-#undef RLE_SUPPORTED		/* Utah RLE image file format */
-#define TARGA_SUPPORTED		/* Targa image file format */
-
-#define USE_CCOMMAND		/* Command line reader for Macintosh */
-#define TWO_FILE_COMMANDLINE	/* Binary I/O thru stdin/stdout doesn't work */
-
-#undef NEED_SIGNAL_CATCHER
-#undef DONT_USE_B_MODE
-#undef PROGRESS_REPORT		/* optional */
-
-#endif /* JPEG_CJPEG_DJPEG */
diff --git a/src/3rdparty/libjpeg/jconfig.manx b/src/3rdparty/libjpeg/jconfig.manx
deleted file mode 100644
index 6dd0d008e..000000000
--- a/src/3rdparty/libjpeg/jconfig.manx
+++ /dev/null
@@ -1,43 +0,0 @@
-/* jconfig.manx --- jconfig.h for Amiga systems using Manx Aztec C ver 5.x. */
-/* see jconfig.doc for explanations */
-
-#define HAVE_PROTOTYPES
-#define HAVE_UNSIGNED_CHAR
-#define HAVE_UNSIGNED_SHORT
-/* #define void char */
-/* #define const */
-#undef CHAR_IS_UNSIGNED
-#define HAVE_STDDEF_H
-#define HAVE_STDLIB_H
-#undef NEED_BSD_STRINGS
-#undef NEED_SYS_TYPES_H
-#undef NEED_FAR_POINTERS
-#undef NEED_SHORT_EXTERNAL_NAMES
-#undef INCOMPLETE_TYPES_BROKEN
-
-#ifdef JPEG_INTERNALS
-
-#undef RIGHT_SHIFT_IS_UNSIGNED
-
-#define TEMP_DIRECTORY "JPEGTMP:"	/* recommended setting for Amiga */
-
-#define SHORTxSHORT_32		/* produces better DCT code with Aztec C */
-
-#endif /* JPEG_INTERNALS */
-
-#ifdef JPEG_CJPEG_DJPEG
-
-#define BMP_SUPPORTED		/* BMP image file format */
-#define GIF_SUPPORTED		/* GIF image file format */
-#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */
-#undef RLE_SUPPORTED		/* Utah RLE image file format */
-#define TARGA_SUPPORTED		/* Targa image file format */
-
-#define TWO_FILE_COMMANDLINE
-#define NEED_SIGNAL_CATCHER
-#undef DONT_USE_B_MODE
-#undef PROGRESS_REPORT		/* optional */
-
-#define signal_catcher _abort	/* hack for Aztec C naming requirements */
-
-#endif /* JPEG_CJPEG_DJPEG */
diff --git a/src/3rdparty/libjpeg/jconfig.mc6 b/src/3rdparty/libjpeg/jconfig.mc6
deleted file mode 100644
index c55082df4..000000000
--- a/src/3rdparty/libjpeg/jconfig.mc6
+++ /dev/null
@@ -1,52 +0,0 @@
-/* jconfig.mc6 --- jconfig.h for Microsoft C on MS-DOS, version 6.00A & up. */
-/* see jconfig.doc for explanations */
-
-#define HAVE_PROTOTYPES
-#define HAVE_UNSIGNED_CHAR
-#define HAVE_UNSIGNED_SHORT
-/* #define void char */
-/* #define const */
-#undef CHAR_IS_UNSIGNED
-#define HAVE_STDDEF_H
-#define HAVE_STDLIB_H
-#undef NEED_BSD_STRINGS
-#undef NEED_SYS_TYPES_H
-#define NEED_FAR_POINTERS	/* for small or medium memory model */
-#undef NEED_SHORT_EXTERNAL_NAMES
-#undef INCOMPLETE_TYPES_BROKEN
-
-#ifdef JPEG_INTERNALS
-
-#undef RIGHT_SHIFT_IS_UNSIGNED
-
-#define USE_MSDOS_MEMMGR	/* Define this if you use jmemdos.c */
-
-#define MAX_ALLOC_CHUNK 65520L	/* Maximum request to malloc() */
-
-#define USE_FMEM		/* Microsoft has _fmemcpy() and _fmemset() */
-
-#define NEED_FHEAPMIN		/* far heap management routines are broken */
-
-#define SHORTxLCONST_32		/* enable compiler-specific DCT optimization */
-/* Note: the above define is known to improve the code with Microsoft C 6.00A.
- * I do not know whether it is good for later compiler versions.
- * Please report any info on this point to jpeg-info@uunet.uu.net.
- */
-
-#endif /* JPEG_INTERNALS */
-
-#ifdef JPEG_CJPEG_DJPEG
-
-#define BMP_SUPPORTED		/* BMP image file format */
-#define GIF_SUPPORTED		/* GIF image file format */
-#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */
-#undef RLE_SUPPORTED		/* Utah RLE image file format */
-#define TARGA_SUPPORTED		/* Targa image file format */
-
-#define TWO_FILE_COMMANDLINE
-#define USE_SETMODE		/* Microsoft has setmode() */
-#define NEED_SIGNAL_CATCHER	/* Define this if you use jmemdos.c */
-#undef DONT_USE_B_MODE
-#undef PROGRESS_REPORT		/* optional */
-
-#endif /* JPEG_CJPEG_DJPEG */
diff --git a/src/3rdparty/libjpeg/jconfig.sas b/src/3rdparty/libjpeg/jconfig.sas
deleted file mode 100644
index efdac2229..000000000
--- a/src/3rdparty/libjpeg/jconfig.sas
+++ /dev/null
@@ -1,43 +0,0 @@
-/* jconfig.sas --- jconfig.h for Amiga systems using SAS C 6.0 and up. */
-/* see jconfig.doc for explanations */
-
-#define HAVE_PROTOTYPES
-#define HAVE_UNSIGNED_CHAR
-#define HAVE_UNSIGNED_SHORT
-/* #define void char */
-/* #define const */
-#undef CHAR_IS_UNSIGNED
-#define HAVE_STDDEF_H
-#define HAVE_STDLIB_H
-#undef NEED_BSD_STRINGS
-#undef NEED_SYS_TYPES_H
-#undef NEED_FAR_POINTERS
-#undef NEED_SHORT_EXTERNAL_NAMES
-#undef INCOMPLETE_TYPES_BROKEN
-
-#ifdef JPEG_INTERNALS
-
-#undef RIGHT_SHIFT_IS_UNSIGNED
-
-#define TEMP_DIRECTORY "JPEGTMP:"	/* recommended setting for Amiga */
-
-#define NO_MKTEMP		/* SAS C doesn't have mktemp() */
-
-#define SHORTxSHORT_32		/* produces better DCT code with SAS C */
-
-#endif /* JPEG_INTERNALS */
-
-#ifdef JPEG_CJPEG_DJPEG
-
-#define BMP_SUPPORTED		/* BMP image file format */
-#define GIF_SUPPORTED		/* GIF image file format */
-#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */
-#undef RLE_SUPPORTED		/* Utah RLE image file format */
-#define TARGA_SUPPORTED		/* Targa image file format */
-
-#define TWO_FILE_COMMANDLINE
-#define NEED_SIGNAL_CATCHER
-#undef DONT_USE_B_MODE
-#undef PROGRESS_REPORT		/* optional */
-
-#endif /* JPEG_CJPEG_DJPEG */
diff --git a/src/3rdparty/libjpeg/jconfig.st b/src/3rdparty/libjpeg/jconfig.st
deleted file mode 100644
index 4421b7a1a..000000000
--- a/src/3rdparty/libjpeg/jconfig.st
+++ /dev/null
@@ -1,42 +0,0 @@
-/* jconfig.st --- jconfig.h for Atari ST/STE/TT using Pure C or Turbo C. */
-/* see jconfig.doc for explanations */
-
-#define HAVE_PROTOTYPES
-#define HAVE_UNSIGNED_CHAR
-#define HAVE_UNSIGNED_SHORT
-/* #define void char */
-/* #define const */
-#undef CHAR_IS_UNSIGNED
-#define HAVE_STDDEF_H
-#define HAVE_STDLIB_H
-#undef NEED_BSD_STRINGS
-#undef NEED_SYS_TYPES_H
-#undef NEED_FAR_POINTERS
-#undef NEED_SHORT_EXTERNAL_NAMES
-#define INCOMPLETE_TYPES_BROKEN	/* suppress undefined-structure warnings */
-
-#ifdef JPEG_INTERNALS
-
-#undef RIGHT_SHIFT_IS_UNSIGNED
-
-#define ALIGN_TYPE  long	/* apparently double is a weird size? */
-
-#endif /* JPEG_INTERNALS */
-
-#ifdef JPEG_CJPEG_DJPEG
-
-#define BMP_SUPPORTED		/* BMP image file format */
-#define GIF_SUPPORTED		/* GIF image file format */
-#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */
-#undef RLE_SUPPORTED		/* Utah RLE image file format */
-#define TARGA_SUPPORTED		/* Targa image file format */
-
-#define TWO_FILE_COMMANDLINE	/* optional -- undef if you like Unix style */
-/* Note: if you undef TWO_FILE_COMMANDLINE, you may need to define
- * USE_SETMODE.  Some Atari compilers require it, some do not.
- */
-#define NEED_SIGNAL_CATCHER	/* needed if you use jmemname.c */
-#undef DONT_USE_B_MODE
-#undef PROGRESS_REPORT		/* optional */
-
-#endif /* JPEG_CJPEG_DJPEG */
diff --git a/src/3rdparty/libjpeg/jconfig.vc b/src/3rdparty/libjpeg/jconfig.vc
deleted file mode 100644
index 7e291c75b..000000000
--- a/src/3rdparty/libjpeg/jconfig.vc
+++ /dev/null
@@ -1,45 +0,0 @@
-/* jconfig.vc --- jconfig.h for Microsoft Visual C++ on Windows 95 or NT. */
-/* see jconfig.doc for explanations */
-
-#define HAVE_PROTOTYPES
-#define HAVE_UNSIGNED_CHAR
-#define HAVE_UNSIGNED_SHORT
-/* #define void char */
-/* #define const */
-#undef CHAR_IS_UNSIGNED
-#define HAVE_STDDEF_H
-#define HAVE_STDLIB_H
-#undef NEED_BSD_STRINGS
-#undef NEED_SYS_TYPES_H
-#undef NEED_FAR_POINTERS	/* we presume a 32-bit flat memory model */
-#undef NEED_SHORT_EXTERNAL_NAMES
-#undef INCOMPLETE_TYPES_BROKEN
-
-/* Define "boolean" as unsigned char, not int, per Windows custom */
-#ifndef __RPCNDR_H__		/* don't conflict if rpcndr.h already read */
-typedef unsigned char boolean;
-#endif
-#define HAVE_BOOLEAN		/* prevent jmorecfg.h from redefining it */
-
-
-#ifdef JPEG_INTERNALS
-
-#undef RIGHT_SHIFT_IS_UNSIGNED
-
-#endif /* JPEG_INTERNALS */
-
-#ifdef JPEG_CJPEG_DJPEG
-
-#define BMP_SUPPORTED		/* BMP image file format */
-#define GIF_SUPPORTED		/* GIF image file format */
-#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */
-#undef RLE_SUPPORTED		/* Utah RLE image file format */
-#define TARGA_SUPPORTED		/* Targa image file format */
-
-#define TWO_FILE_COMMANDLINE	/* optional */
-#define USE_SETMODE		/* Microsoft has setmode() */
-#undef NEED_SIGNAL_CATCHER
-#undef DONT_USE_B_MODE
-#undef PROGRESS_REPORT		/* optional */
-
-#endif /* JPEG_CJPEG_DJPEG */
diff --git a/src/3rdparty/libjpeg/jconfig.vms b/src/3rdparty/libjpeg/jconfig.vms
deleted file mode 100644
index 55a6ffba5..000000000
--- a/src/3rdparty/libjpeg/jconfig.vms
+++ /dev/null
@@ -1,37 +0,0 @@
-/* jconfig.vms --- jconfig.h for use on Digital VMS. */
-/* see jconfig.doc for explanations */
-
-#define HAVE_PROTOTYPES
-#define HAVE_UNSIGNED_CHAR
-#define HAVE_UNSIGNED_SHORT
-/* #define void char */
-/* #define const */
-#undef CHAR_IS_UNSIGNED
-#define HAVE_STDDEF_H
-#define HAVE_STDLIB_H
-#undef NEED_BSD_STRINGS
-#undef NEED_SYS_TYPES_H
-#undef NEED_FAR_POINTERS
-#undef NEED_SHORT_EXTERNAL_NAMES
-#undef INCOMPLETE_TYPES_BROKEN
-
-#ifdef JPEG_INTERNALS
-
-#undef RIGHT_SHIFT_IS_UNSIGNED
-
-#endif /* JPEG_INTERNALS */
-
-#ifdef JPEG_CJPEG_DJPEG
-
-#define BMP_SUPPORTED		/* BMP image file format */
-#define GIF_SUPPORTED		/* GIF image file format */
-#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */
-#undef RLE_SUPPORTED		/* Utah RLE image file format */
-#define TARGA_SUPPORTED		/* Targa image file format */
-
-#define TWO_FILE_COMMANDLINE	/* Needed on VMS */
-#undef NEED_SIGNAL_CATCHER
-#undef DONT_USE_B_MODE
-#undef PROGRESS_REPORT		/* optional */
-
-#endif /* JPEG_CJPEG_DJPEG */
diff --git a/src/3rdparty/libjpeg/jconfig.wat b/src/3rdparty/libjpeg/jconfig.wat
deleted file mode 100644
index 6cc545bae..000000000
--- a/src/3rdparty/libjpeg/jconfig.wat
+++ /dev/null
@@ -1,38 +0,0 @@
-/* jconfig.wat --- jconfig.h for Watcom C/C++ on MS-DOS or OS/2. */
-/* see jconfig.doc for explanations */
-
-#define HAVE_PROTOTYPES
-#define HAVE_UNSIGNED_CHAR
-#define HAVE_UNSIGNED_SHORT
-/* #define void char */
-/* #define const */
-#define CHAR_IS_UNSIGNED
-#define HAVE_STDDEF_H
-#define HAVE_STDLIB_H
-#undef NEED_BSD_STRINGS
-#undef NEED_SYS_TYPES_H
-#undef NEED_FAR_POINTERS	/* Watcom uses flat 32-bit addressing */
-#undef NEED_SHORT_EXTERNAL_NAMES
-#undef INCOMPLETE_TYPES_BROKEN
-
-#ifdef JPEG_INTERNALS
-
-#undef RIGHT_SHIFT_IS_UNSIGNED
-
-#endif /* JPEG_INTERNALS */
-
-#ifdef JPEG_CJPEG_DJPEG
-
-#define BMP_SUPPORTED		/* BMP image file format */
-#define GIF_SUPPORTED		/* GIF image file format */
-#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */
-#undef RLE_SUPPORTED		/* Utah RLE image file format */
-#define TARGA_SUPPORTED		/* Targa image file format */
-
-#undef TWO_FILE_COMMANDLINE	/* optional */
-#define USE_SETMODE		/* Needed to make one-file style work in Watcom */
-#undef NEED_SIGNAL_CATCHER	/* Define this if you use jmemname.c */
-#undef DONT_USE_B_MODE
-#undef PROGRESS_REPORT		/* optional */
-
-#endif /* JPEG_CJPEG_DJPEG */
diff --git a/src/3rdparty/libjpeg/jcparam.c b/src/3rdparty/libjpeg/jcparam.c
deleted file mode 100644
index 77461c0e8..000000000
--- a/src/3rdparty/libjpeg/jcparam.c
+++ /dev/null
@@ -1,610 +0,0 @@
-/*
- * jcparam.c
- *
- * Copyright (C) 1991-1998, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains optional default-setting code for the JPEG compressor.
- * Applications do not have to use this file, but those that don't use it
- * must know a lot more about the innards of the JPEG code.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/*
- * Quantization table setup routines
- */
-
-GLOBAL(void)
-jpeg_add_quant_table (j_compress_ptr cinfo, int which_tbl,
-		      const unsigned int *basic_table,
-		      int scale_factor, boolean force_baseline)
-/* Define a quantization table equal to the basic_table times
- * a scale factor (given as a percentage).
- * If force_baseline is TRUE, the computed quantization table entries
- * are limited to 1..255 for JPEG baseline compatibility.
- */
-{
-  JTQUANT_TBL ** qtblptr;
-  int i;
-  long temp;
-
-  /* Safety check to ensure start_compress not called yet. */
-  if (cinfo->global_state != CSTATE_START)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-
-  if (which_tbl < 0 || which_tbl >= NUM_QUANT_TBLS)
-    ERREXIT1(cinfo, JERR_DQT_INDEX, which_tbl);
-
-  qtblptr = & cinfo->quant_tbl_ptrs[which_tbl];
-
-  if (*qtblptr == NULL)
-    *qtblptr = jpeg_alloc_quant_table((j_common_ptr) cinfo);
-
-  for (i = 0; i < DCTSIZE2; i++) {
-    temp = ((long) basic_table[i] * scale_factor + 50L) / 100L;
-    /* limit the values to the valid range */
-    if (temp <= 0L) temp = 1L;
-    if (temp > 32767L) temp = 32767L; /* max quantizer needed for 12 bits */
-    if (force_baseline && temp > 255L)
-      temp = 255L;		/* limit to baseline range if requested */
-    (*qtblptr)->quantval[i] = (UINT16) temp;
-  }
-
-  /* Initialize sent_table FALSE so table will be written to JPEG file. */
-  (*qtblptr)->sent_table = FALSE;
-}
-
-
-GLOBAL(void)
-jpeg_set_linear_quality (j_compress_ptr cinfo, int scale_factor,
-			 boolean force_baseline)
-/* Set or change the 'quality' (quantization) setting, using default tables
- * and a straight percentage-scaling quality scale.  In most cases it's better
- * to use jpeg_set_quality (below); this entry point is provided for
- * applications that insist on a linear percentage scaling.
- */
-{
-  /* These are the sample quantization tables given in JPEG spec section K.1.
-   * The spec says that the values given produce "good" quality, and
-   * when divided by 2, "very good" quality.
-   */
-  static const unsigned int std_luminance_quant_tbl[DCTSIZE2] = {
-    16,  11,  10,  16,  24,  40,  51,  61,
-    12,  12,  14,  19,  26,  58,  60,  55,
-    14,  13,  16,  24,  40,  57,  69,  56,
-    14,  17,  22,  29,  51,  87,  80,  62,
-    18,  22,  37,  56,  68, 109, 103,  77,
-    24,  35,  55,  64,  81, 104, 113,  92,
-    49,  64,  78,  87, 103, 121, 120, 101,
-    72,  92,  95,  98, 112, 100, 103,  99
-  };
-  static const unsigned int std_chrominance_quant_tbl[DCTSIZE2] = {
-    17,  18,  24,  47,  99,  99,  99,  99,
-    18,  21,  26,  66,  99,  99,  99,  99,
-    24,  26,  56,  99,  99,  99,  99,  99,
-    47,  66,  99,  99,  99,  99,  99,  99,
-    99,  99,  99,  99,  99,  99,  99,  99,
-    99,  99,  99,  99,  99,  99,  99,  99,
-    99,  99,  99,  99,  99,  99,  99,  99,
-    99,  99,  99,  99,  99,  99,  99,  99
-  };
-
-  /* Set up two quantization tables using the specified scaling */
-  jpeg_add_quant_table(cinfo, 0, std_luminance_quant_tbl,
-		       scale_factor, force_baseline);
-  jpeg_add_quant_table(cinfo, 1, std_chrominance_quant_tbl,
-		       scale_factor, force_baseline);
-}
-
-
-GLOBAL(int)
-jpeg_quality_scaling (int quality)
-/* Convert a user-specified quality rating to a percentage scaling factor
- * for an underlying quantization table, using our recommended scaling curve.
- * The input 'quality' factor should be 0 (terrible) to 100 (very good).
- */
-{
-  /* Safety limit on quality factor.  Convert 0 to 1 to avoid zero divide. */
-  if (quality <= 0) quality = 1;
-  if (quality > 100) quality = 100;
-
-  /* The basic table is used as-is (scaling 100) for a quality of 50.
-   * Qualities 50..100 are converted to scaling percentage 200 - 2*Q;
-   * note that at Q=100 the scaling is 0, which will cause jpeg_add_quant_table
-   * to make all the table entries 1 (hence, minimum quantization loss).
-   * Qualities 1..50 are converted to scaling percentage 5000/Q.
-   */
-  if (quality < 50)
-    quality = 5000 / quality;
-  else
-    quality = 200 - quality*2;
-
-  return quality;
-}
-
-
-GLOBAL(void)
-jpeg_set_quality (j_compress_ptr cinfo, int quality, boolean force_baseline)
-/* Set or change the 'quality' (quantization) setting, using default tables.
- * This is the standard quality-adjusting entry point for typical user
- * interfaces; only those who want detailed control over quantization tables
- * would use the preceding three routines directly.
- */
-{
-  /* Convert user 0-100 rating to percentage scaling */
-  quality = jpeg_quality_scaling(quality);
-
-  /* Set up standard quality tables */
-  jpeg_set_linear_quality(cinfo, quality, force_baseline);
-}
-
-
-/*
- * Huffman table setup routines
- */
-
-LOCAL(void)
-add_huff_table (j_compress_ptr cinfo,
-		JHUFF_TBL **htblptr, const UINT8 *bits, const UINT8 *val)
-/* Define a Huffman table */
-{
-  int nsymbols, len;
-
-  if (*htblptr == NULL)
-    *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo);
-
-  /* Copy the number-of-symbols-of-each-code-length counts */
-  MEMCOPY((*htblptr)->bits, bits, SIZEOF((*htblptr)->bits));
-
-  /* Validate the counts.  We do this here mainly so we can copy the right
-   * number of symbols from the val[] array, without risking marching off
-   * the end of memory.  jchuff.c will do a more thorough test later.
-   */
-  nsymbols = 0;
-  for (len = 1; len <= 16; len++)
-    nsymbols += bits[len];
-  if (nsymbols < 1 || nsymbols > 256)
-    ERREXIT(cinfo, JERR_BAD_HUFF_TABLE);
-
-  MEMCOPY((*htblptr)->huffval, val, nsymbols * SIZEOF(UINT8));
-
-  /* Initialize sent_table FALSE so table will be written to JPEG file. */
-  (*htblptr)->sent_table = FALSE;
-}
-
-
-LOCAL(void)
-std_huff_tables (j_compress_ptr cinfo)
-/* Set up the standard Huffman tables (cf. JPEG standard section K.3) */
-/* IMPORTANT: these are only valid for 8-bit data precision! */
-{
-  static const UINT8 bits_dc_luminance[17] =
-    { /* 0-base */ 0, 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0 };
-  static const UINT8 val_dc_luminance[] =
-    { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 };
-  
-  static const UINT8 bits_dc_chrominance[17] =
-    { /* 0-base */ 0, 0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 };
-  static const UINT8 val_dc_chrominance[] =
-    { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 };
-  
-  static const UINT8 bits_ac_luminance[17] =
-    { /* 0-base */ 0, 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d };
-  static const UINT8 val_ac_luminance[] =
-    { 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12,
-      0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07,
-      0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08,
-      0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0,
-      0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16,
-      0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28,
-      0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39,
-      0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49,
-      0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59,
-      0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
-      0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
-      0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89,
-      0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98,
-      0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
-      0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6,
-      0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5,
-      0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4,
-      0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2,
-      0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea,
-      0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
-      0xf9, 0xfa };
-  
-  static const UINT8 bits_ac_chrominance[17] =
-    { /* 0-base */ 0, 0, 2, 1, 2, 4, 4, 3, 4, 7, 5, 4, 4, 0, 1, 2, 0x77 };
-  static const UINT8 val_ac_chrominance[] =
-    { 0x00, 0x01, 0x02, 0x03, 0x11, 0x04, 0x05, 0x21,
-      0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71,
-      0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91,
-      0xa1, 0xb1, 0xc1, 0x09, 0x23, 0x33, 0x52, 0xf0,
-      0x15, 0x62, 0x72, 0xd1, 0x0a, 0x16, 0x24, 0x34,
-      0xe1, 0x25, 0xf1, 0x17, 0x18, 0x19, 0x1a, 0x26,
-      0x27, 0x28, 0x29, 0x2a, 0x35, 0x36, 0x37, 0x38,
-      0x39, 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,
-      0x49, 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
-      0x59, 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
-      0x69, 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
-      0x79, 0x7a, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
-      0x88, 0x89, 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96,
-      0x97, 0x98, 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5,
-      0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4,
-      0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3,
-      0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2,
-      0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda,
-      0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9,
-      0xea, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
-      0xf9, 0xfa };
-  
-  add_huff_table(cinfo, &cinfo->dc_huff_tbl_ptrs[0],
-		 bits_dc_luminance, val_dc_luminance);
-  add_huff_table(cinfo, &cinfo->ac_huff_tbl_ptrs[0],
-		 bits_ac_luminance, val_ac_luminance);
-  add_huff_table(cinfo, &cinfo->dc_huff_tbl_ptrs[1],
-		 bits_dc_chrominance, val_dc_chrominance);
-  add_huff_table(cinfo, &cinfo->ac_huff_tbl_ptrs[1],
-		 bits_ac_chrominance, val_ac_chrominance);
-}
-
-
-/*
- * Default parameter setup for compression.
- *
- * Applications that don't choose to use this routine must do their
- * own setup of all these parameters.  Alternately, you can call this
- * to establish defaults and then alter parameters selectively.  This
- * is the recommended approach since, if we add any new parameters,
- * your code will still work (they'll be set to reasonable defaults).
- */
-
-GLOBAL(void)
-jpeg_set_defaults (j_compress_ptr cinfo)
-{
-  int i;
-
-  /* Safety check to ensure start_compress not called yet. */
-  if (cinfo->global_state != CSTATE_START)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-
-  /* Allocate comp_info array large enough for maximum component count.
-   * Array is made permanent in case application wants to compress
-   * multiple images at same param settings.
-   */
-  if (cinfo->comp_info == NULL)
-    cinfo->comp_info = (jpeg_component_info *)
-      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
-				  MAX_COMPONENTS * SIZEOF(jpeg_component_info));
-
-  /* Initialize everything not dependent on the color space */
-
-  cinfo->data_precision = BITS_IN_JSAMPLE;
-  /* Set up two quantization tables using default quality of 75 */
-  jpeg_set_quality(cinfo, 75, TRUE);
-  /* Set up two Huffman tables */
-  std_huff_tables(cinfo);
-
-  /* Initialize default arithmetic coding conditioning */
-  for (i = 0; i < NUM_ARITH_TBLS; i++) {
-    cinfo->arith_dc_L[i] = 0;
-    cinfo->arith_dc_U[i] = 1;
-    cinfo->arith_ac_K[i] = 5;
-  }
-
-  /* Default is no multiple-scan output */
-  cinfo->scan_info = NULL;
-  cinfo->num_scans = 0;
-
-  /* Expect normal source image, not raw downsampled data */
-  cinfo->raw_data_in = FALSE;
-
-  /* Use Huffman coding, not arithmetic coding, by default */
-  cinfo->arith_code = FALSE;
-
-  /* By default, don't do extra passes to optimize entropy coding */
-  cinfo->optimize_coding = FALSE;
-  /* The standard Huffman tables are only valid for 8-bit data precision.
-   * If the precision is higher, force optimization on so that usable
-   * tables will be computed.  This test can be removed if default tables
-   * are supplied that are valid for the desired precision.
-   */
-  if (cinfo->data_precision > 8)
-    cinfo->optimize_coding = TRUE;
-
-  /* By default, use the simpler non-cosited sampling alignment */
-  cinfo->CCIR601_sampling = FALSE;
-
-  /* No input smoothing */
-  cinfo->smoothing_factor = 0;
-
-  /* DCT algorithm preference */
-  cinfo->dct_method = JDCT_DEFAULT;
-
-  /* No restart markers */
-  cinfo->restart_interval = 0;
-  cinfo->restart_in_rows = 0;
-
-  /* Fill in default JFIF marker parameters.  Note that whether the marker
-   * will actually be written is determined by jpeg_set_colorspace.
-   *
-   * By default, the library emits JFIF version code 1.01.
-   * An application that wants to emit JFIF 1.02 extension markers should set
-   * JFIF_minor_version to 2.  We could probably get away with just defaulting
-   * to 1.02, but there may still be some decoders in use that will complain
-   * about that; saying 1.01 should minimize compatibility problems.
-   */
-  cinfo->JFIF_major_version = 1; /* Default JFIF version = 1.01 */
-  cinfo->JFIF_minor_version = 1;
-  cinfo->density_unit = 0;	/* Pixel size is unknown by default */
-  cinfo->X_density = 1;		/* Pixel aspect ratio is square by default */
-  cinfo->Y_density = 1;
-
-  /* Choose JPEG colorspace based on input space, set defaults accordingly */
-
-  jpeg_default_colorspace(cinfo);
-}
-
-
-/*
- * Select an appropriate JPEG colorspace for in_color_space.
- */
-
-GLOBAL(void)
-jpeg_default_colorspace (j_compress_ptr cinfo)
-{
-  switch (cinfo->in_color_space) {
-  case JCS_GRAYSCALE:
-    jpeg_set_colorspace(cinfo, JCS_GRAYSCALE);
-    break;
-  case JCS_RGB:
-    jpeg_set_colorspace(cinfo, JCS_YCbCr);
-    break;
-  case JCS_YCbCr:
-    jpeg_set_colorspace(cinfo, JCS_YCbCr);
-    break;
-  case JCS_CMYK:
-    jpeg_set_colorspace(cinfo, JCS_CMYK); /* By default, no translation */
-    break;
-  case JCS_YCCK:
-    jpeg_set_colorspace(cinfo, JCS_YCCK);
-    break;
-  case JCS_UNKNOWN:
-    jpeg_set_colorspace(cinfo, JCS_UNKNOWN);
-    break;
-  default:
-    ERREXIT(cinfo, JERR_BAD_IN_COLORSPACE);
-  }
-}
-
-
-/*
- * Set the JPEG colorspace, and choose colorspace-dependent default values.
- */
-
-GLOBAL(void)
-jpeg_set_colorspace (j_compress_ptr cinfo, J_COLOR_SPACE colorspace)
-{
-  jpeg_component_info * compptr;
-  int ci;
-
-#define SET_COMP(index,id,hsamp,vsamp,quant,dctbl,actbl)  \
-  (compptr = &cinfo->comp_info[index], \
-   compptr->component_id = (id), \
-   compptr->h_samp_factor = (hsamp), \
-   compptr->v_samp_factor = (vsamp), \
-   compptr->quant_tbl_no = (quant), \
-   compptr->dc_tbl_no = (dctbl), \
-   compptr->ac_tbl_no = (actbl) )
-
-  /* Safety check to ensure start_compress not called yet. */
-  if (cinfo->global_state != CSTATE_START)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-
-  /* For all colorspaces, we use Q and Huff tables 0 for luminance components,
-   * tables 1 for chrominance components.
-   */
-
-  cinfo->jpeg_color_space = colorspace;
-
-  cinfo->write_JFIF_header = FALSE; /* No marker for non-JFIF colorspaces */
-  cinfo->write_Adobe_marker = FALSE; /* write no Adobe marker by default */
-
-  switch (colorspace) {
-  case JCS_GRAYSCALE:
-    cinfo->write_JFIF_header = TRUE; /* Write a JFIF marker */
-    cinfo->num_components = 1;
-    /* JFIF specifies component ID 1 */
-    SET_COMP(0, 1, 1,1, 0, 0,0);
-    break;
-  case JCS_RGB:
-    cinfo->write_Adobe_marker = TRUE; /* write Adobe marker to flag RGB */
-    cinfo->num_components = 3;
-    SET_COMP(0, 0x52 /* 'R' */, 1,1, 0, 0,0);
-    SET_COMP(1, 0x47 /* 'G' */, 1,1, 0, 0,0);
-    SET_COMP(2, 0x42 /* 'B' */, 1,1, 0, 0,0);
-    break;
-  case JCS_YCbCr:
-    cinfo->write_JFIF_header = TRUE; /* Write a JFIF marker */
-    cinfo->num_components = 3;
-    /* JFIF specifies component IDs 1,2,3 */
-    /* We default to 2x2 subsamples of chrominance */
-    SET_COMP(0, 1, 2,2, 0, 0,0);
-    SET_COMP(1, 2, 1,1, 1, 1,1);
-    SET_COMP(2, 3, 1,1, 1, 1,1);
-    break;
-  case JCS_CMYK:
-    cinfo->write_Adobe_marker = TRUE; /* write Adobe marker to flag CMYK */
-    cinfo->num_components = 4;
-    SET_COMP(0, 0x43 /* 'C' */, 1,1, 0, 0,0);
-    SET_COMP(1, 0x4D /* 'M' */, 1,1, 0, 0,0);
-    SET_COMP(2, 0x59 /* 'Y' */, 1,1, 0, 0,0);
-    SET_COMP(3, 0x4B /* 'K' */, 1,1, 0, 0,0);
-    break;
-  case JCS_YCCK:
-    cinfo->write_Adobe_marker = TRUE; /* write Adobe marker to flag YCCK */
-    cinfo->num_components = 4;
-    SET_COMP(0, 1, 2,2, 0, 0,0);
-    SET_COMP(1, 2, 1,1, 1, 1,1);
-    SET_COMP(2, 3, 1,1, 1, 1,1);
-    SET_COMP(3, 4, 2,2, 0, 0,0);
-    break;
-  case JCS_UNKNOWN:
-    cinfo->num_components = cinfo->input_components;
-    if (cinfo->num_components < 1 || cinfo->num_components > MAX_COMPONENTS)
-      ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components,
-	       MAX_COMPONENTS);
-    for (ci = 0; ci < cinfo->num_components; ci++) {
-      SET_COMP(ci, ci, 1,1, 0, 0,0);
-    }
-    break;
-  default:
-    ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-  }
-}
-
-
-#ifdef C_PROGRESSIVE_SUPPORTED
-
-LOCAL(jpeg_scan_info *)
-fill_a_scan (jpeg_scan_info * scanptr, int ci,
-	     int Ss, int Se, int Ah, int Al)
-/* Support routine: generate one scan for specified component */
-{
-  scanptr->comps_in_scan = 1;
-  scanptr->component_index[0] = ci;
-  scanptr->Ss = Ss;
-  scanptr->Se = Se;
-  scanptr->Ah = Ah;
-  scanptr->Al = Al;
-  scanptr++;
-  return scanptr;
-}
-
-LOCAL(jpeg_scan_info *)
-fill_scans (jpeg_scan_info * scanptr, int ncomps,
-	    int Ss, int Se, int Ah, int Al)
-/* Support routine: generate one scan for each component */
-{
-  int ci;
-
-  for (ci = 0; ci < ncomps; ci++) {
-    scanptr->comps_in_scan = 1;
-    scanptr->component_index[0] = ci;
-    scanptr->Ss = Ss;
-    scanptr->Se = Se;
-    scanptr->Ah = Ah;
-    scanptr->Al = Al;
-    scanptr++;
-  }
-  return scanptr;
-}
-
-LOCAL(jpeg_scan_info *)
-fill_dc_scans (jpeg_scan_info * scanptr, int ncomps, int Ah, int Al)
-/* Support routine: generate interleaved DC scan if possible, else N scans */
-{
-  int ci;
-
-  if (ncomps <= MAX_COMPS_IN_SCAN) {
-    /* Single interleaved DC scan */
-    scanptr->comps_in_scan = ncomps;
-    for (ci = 0; ci < ncomps; ci++)
-      scanptr->component_index[ci] = ci;
-    scanptr->Ss = scanptr->Se = 0;
-    scanptr->Ah = Ah;
-    scanptr->Al = Al;
-    scanptr++;
-  } else {
-    /* Noninterleaved DC scan for each component */
-    scanptr = fill_scans(scanptr, ncomps, 0, 0, Ah, Al);
-  }
-  return scanptr;
-}
-
-
-/*
- * Create a recommended progressive-JPEG script.
- * cinfo->num_components and cinfo->jpeg_color_space must be correct.
- */
-
-GLOBAL(void)
-jpeg_simple_progression (j_compress_ptr cinfo)
-{
-  int ncomps = cinfo->num_components;
-  int nscans;
-  jpeg_scan_info * scanptr;
-
-  /* Safety check to ensure start_compress not called yet. */
-  if (cinfo->global_state != CSTATE_START)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-
-  /* Figure space needed for script.  Calculation must match code below! */
-  if (ncomps == 3 && cinfo->jpeg_color_space == JCS_YCbCr) {
-    /* Custom script for YCbCr color images. */
-    nscans = 10;
-  } else {
-    /* All-purpose script for other color spaces. */
-    if (ncomps > MAX_COMPS_IN_SCAN)
-      nscans = 6 * ncomps;	/* 2 DC + 4 AC scans per component */
-    else
-      nscans = 2 + 4 * ncomps;	/* 2 DC scans; 4 AC scans per component */
-  }
-
-  /* Allocate space for script.
-   * We need to put it in the permanent pool in case the application performs
-   * multiple compressions without changing the settings.  To avoid a memory
-   * leak if jpeg_simple_progression is called repeatedly for the same JPEG
-   * object, we try to re-use previously allocated space, and we allocate
-   * enough space to handle YCbCr even if initially asked for grayscale.
-   */
-  if (cinfo->script_space == NULL || cinfo->script_space_size < nscans) {
-    cinfo->script_space_size = MAX(nscans, 10);
-    cinfo->script_space = (jpeg_scan_info *)
-      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
-			cinfo->script_space_size * SIZEOF(jpeg_scan_info));
-  }
-  scanptr = cinfo->script_space;
-  cinfo->scan_info = scanptr;
-  cinfo->num_scans = nscans;
-
-  if (ncomps == 3 && cinfo->jpeg_color_space == JCS_YCbCr) {
-    /* Custom script for YCbCr color images. */
-    /* Initial DC scan */
-    scanptr = fill_dc_scans(scanptr, ncomps, 0, 1);
-    /* Initial AC scan: get some luma data out in a hurry */
-    scanptr = fill_a_scan(scanptr, 0, 1, 5, 0, 2);
-    /* Chroma data is too small to be worth expending many scans on */
-    scanptr = fill_a_scan(scanptr, 2, 1, 63, 0, 1);
-    scanptr = fill_a_scan(scanptr, 1, 1, 63, 0, 1);
-    /* Complete spectral selection for luma AC */
-    scanptr = fill_a_scan(scanptr, 0, 6, 63, 0, 2);
-    /* Refine next bit of luma AC */
-    scanptr = fill_a_scan(scanptr, 0, 1, 63, 2, 1);
-    /* Finish DC successive approximation */
-    scanptr = fill_dc_scans(scanptr, ncomps, 1, 0);
-    /* Finish AC successive approximation */
-    scanptr = fill_a_scan(scanptr, 2, 1, 63, 1, 0);
-    scanptr = fill_a_scan(scanptr, 1, 1, 63, 1, 0);
-    /* Luma bottom bit comes last since it's usually largest scan */
-    scanptr = fill_a_scan(scanptr, 0, 1, 63, 1, 0);
-  } else {
-    /* All-purpose script for other color spaces. */
-    /* Successive approximation first pass */
-    scanptr = fill_dc_scans(scanptr, ncomps, 0, 1);
-    scanptr = fill_scans(scanptr, ncomps, 1, 5, 0, 2);
-    scanptr = fill_scans(scanptr, ncomps, 6, 63, 0, 2);
-    /* Successive approximation second pass */
-    scanptr = fill_scans(scanptr, ncomps, 1, 63, 2, 1);
-    /* Successive approximation final pass */
-    scanptr = fill_dc_scans(scanptr, ncomps, 1, 0);
-    scanptr = fill_scans(scanptr, ncomps, 1, 63, 1, 0);
-  }
-}
-
-#endif /* C_PROGRESSIVE_SUPPORTED */
diff --git a/src/3rdparty/libjpeg/jcphuff.c b/src/3rdparty/libjpeg/jcphuff.c
deleted file mode 100644
index 07f9178b0..000000000
--- a/src/3rdparty/libjpeg/jcphuff.c
+++ /dev/null
@@ -1,833 +0,0 @@
-/*
- * jcphuff.c
- *
- * Copyright (C) 1995-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains Huffman entropy encoding routines for progressive JPEG.
- *
- * We do not support output suspension in this module, since the library
- * currently does not allow multiple-scan files to be written with output
- * suspension.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jchuff.h"		/* Declarations shared with jchuff.c */
-
-#ifdef C_PROGRESSIVE_SUPPORTED
-
-/* Expanded entropy encoder object for progressive Huffman encoding. */
-
-typedef struct {
-  struct jpeg_entropy_encoder pub; /* public fields */
-
-  /* Mode flag: TRUE for optimization, FALSE for actual data output */
-  boolean gather_statistics;
-
-  /* Bit-level coding status.
-   * next_output_byte/free_in_buffer are local copies of cinfo->dest fields.
-   */
-  JOCTET * next_output_byte;	/* => next byte to write in buffer */
-  size_t free_in_buffer;	/* # of byte spaces remaining in buffer */
-  INT32 put_buffer;		/* current bit-accumulation buffer */
-  int put_bits;			/* # of bits now in it */
-  j_compress_ptr cinfo;		/* link to cinfo (needed for dump_buffer) */
-
-  /* Coding status for DC components */
-  int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */
-
-  /* Coding status for AC components */
-  int ac_tbl_no;		/* the table number of the single component */
-  unsigned int EOBRUN;		/* run length of EOBs */
-  unsigned int BE;		/* # of buffered correction bits before MCU */
-  char * bit_buffer;		/* buffer for correction bits (1 per char) */
-  /* packing correction bits tightly would save some space but cost time... */
-
-  unsigned int restarts_to_go;	/* MCUs left in this restart interval */
-  int next_restart_num;		/* next restart number to write (0-7) */
-
-  /* Pointers to derived tables (these workspaces have image lifespan).
-   * Since any one scan codes only DC or only AC, we only need one set
-   * of tables, not one for DC and one for AC.
-   */
-  c_derived_tbl * derived_tbls[NUM_HUFF_TBLS];
-
-  /* Statistics tables for optimization; again, one set is enough */
-  long * count_ptrs[NUM_HUFF_TBLS];
-} phuff_entropy_encoder;
-
-typedef phuff_entropy_encoder * phuff_entropy_ptr;
-
-/* MAX_CORR_BITS is the number of bits the AC refinement correction-bit
- * buffer can hold.  Larger sizes may slightly improve compression, but
- * 1000 is already well into the realm of overkill.
- * The minimum safe size is 64 bits.
- */
-
-#define MAX_CORR_BITS  1000	/* Max # of correction bits I can buffer */
-
-/* IRIGHT_SHIFT is like RIGHT_SHIFT, but works on int rather than INT32.
- * We assume that int right shift is unsigned if INT32 right shift is,
- * which should be safe.
- */
-
-#ifdef RIGHT_SHIFT_IS_UNSIGNED
-#define ISHIFT_TEMPS	int ishift_temp;
-#define IRIGHT_SHIFT(x,shft)  \
-	((ishift_temp = (x)) < 0 ? \
-	 (ishift_temp >> (shft)) | ((~0) << (16-(shft))) : \
-	 (ishift_temp >> (shft)))
-#else
-#define ISHIFT_TEMPS
-#define IRIGHT_SHIFT(x,shft)	((x) >> (shft))
-#endif
-
-/* Forward declarations */
-METHODDEF(boolean) encode_mcu_DC_first JPP((j_compress_ptr cinfo,
-					    JBLOCKROW *MCU_data));
-METHODDEF(boolean) encode_mcu_AC_first JPP((j_compress_ptr cinfo,
-					    JBLOCKROW *MCU_data));
-METHODDEF(boolean) encode_mcu_DC_refine JPP((j_compress_ptr cinfo,
-					     JBLOCKROW *MCU_data));
-METHODDEF(boolean) encode_mcu_AC_refine JPP((j_compress_ptr cinfo,
-					     JBLOCKROW *MCU_data));
-METHODDEF(void) finish_pass_phuff JPP((j_compress_ptr cinfo));
-METHODDEF(void) finish_pass_gather_phuff JPP((j_compress_ptr cinfo));
-
-
-/*
- * Initialize for a Huffman-compressed scan using progressive JPEG.
- */
-
-METHODDEF(void)
-start_pass_phuff (j_compress_ptr cinfo, boolean gather_statistics)
-{  
-  phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
-  boolean is_DC_band;
-  int ci, tbl;
-  jpeg_component_info * compptr;
-
-  entropy->cinfo = cinfo;
-  entropy->gather_statistics = gather_statistics;
-
-  is_DC_band = (cinfo->Ss == 0);
-
-  /* We assume jcmaster.c already validated the scan parameters. */
-
-  /* Select execution routines */
-  if (cinfo->Ah == 0) {
-    if (is_DC_band)
-      entropy->pub.encode_mcu = encode_mcu_DC_first;
-    else
-      entropy->pub.encode_mcu = encode_mcu_AC_first;
-  } else {
-    if (is_DC_band)
-      entropy->pub.encode_mcu = encode_mcu_DC_refine;
-    else {
-      entropy->pub.encode_mcu = encode_mcu_AC_refine;
-      /* AC refinement needs a correction bit buffer */
-      if (entropy->bit_buffer == NULL)
-	entropy->bit_buffer = (char *)
-	  (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				      MAX_CORR_BITS * SIZEOF(char));
-    }
-  }
-  if (gather_statistics)
-    entropy->pub.finish_pass = finish_pass_gather_phuff;
-  else
-    entropy->pub.finish_pass = finish_pass_phuff;
-
-  /* Only DC coefficients may be interleaved, so cinfo->comps_in_scan = 1
-   * for AC coefficients.
-   */
-  for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-    compptr = cinfo->cur_comp_info[ci];
-    /* Initialize DC predictions to 0 */
-    entropy->last_dc_val[ci] = 0;
-    /* Get table index */
-    if (is_DC_band) {
-      if (cinfo->Ah != 0)	/* DC refinement needs no table */
-	continue;
-      tbl = compptr->dc_tbl_no;
-    } else {
-      entropy->ac_tbl_no = tbl = compptr->ac_tbl_no;
-    }
-    if (gather_statistics) {
-      /* Check for invalid table index */
-      /* (make_c_derived_tbl does this in the other path) */
-      if (tbl < 0 || tbl >= NUM_HUFF_TBLS)
-        ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tbl);
-      /* Allocate and zero the statistics tables */
-      /* Note that jpeg_gen_optimal_table expects 257 entries in each table! */
-      if (entropy->count_ptrs[tbl] == NULL)
-	entropy->count_ptrs[tbl] = (long *)
-	  (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				      257 * SIZEOF(long));
-      MEMZERO(entropy->count_ptrs[tbl], 257 * SIZEOF(long));
-    } else {
-      /* Compute derived values for Huffman table */
-      /* We may do this more than once for a table, but it's not expensive */
-      jpeg_make_c_derived_tbl(cinfo, is_DC_band, tbl,
-			      & entropy->derived_tbls[tbl]);
-    }
-  }
-
-  /* Initialize AC stuff */
-  entropy->EOBRUN = 0;
-  entropy->BE = 0;
-
-  /* Initialize bit buffer to empty */
-  entropy->put_buffer = 0;
-  entropy->put_bits = 0;
-
-  /* Initialize restart stuff */
-  entropy->restarts_to_go = cinfo->restart_interval;
-  entropy->next_restart_num = 0;
-}
-
-
-/* Outputting bytes to the file.
- * NB: these must be called only when actually outputting,
- * that is, entropy->gather_statistics == FALSE.
- */
-
-/* Emit a byte */
-#define emit_byte(entropy,val)  \
-	{ *(entropy)->next_output_byte++ = (JOCTET) (val);  \
-	  if (--(entropy)->free_in_buffer == 0)  \
-	    dump_buffer(entropy); }
-
-
-LOCAL(void)
-dump_buffer (phuff_entropy_ptr entropy)
-/* Empty the output buffer; we do not support suspension in this module. */
-{
-  struct jpeg_destination_mgr * dest = entropy->cinfo->dest;
-
-  if (! (*dest->empty_output_buffer) (entropy->cinfo))
-    ERREXIT(entropy->cinfo, JERR_CANT_SUSPEND);
-  /* After a successful buffer dump, must reset buffer pointers */
-  entropy->next_output_byte = dest->next_output_byte;
-  entropy->free_in_buffer = dest->free_in_buffer;
-}
-
-
-/* Outputting bits to the file */
-
-/* Only the right 24 bits of put_buffer are used; the valid bits are
- * left-justified in this part.  At most 16 bits can be passed to emit_bits
- * in one call, and we never retain more than 7 bits in put_buffer
- * between calls, so 24 bits are sufficient.
- */
-
-INLINE
-LOCAL(void)
-emit_bits (phuff_entropy_ptr entropy, unsigned int code, int size)
-/* Emit some bits, unless we are in gather mode */
-{
-  /* This routine is heavily used, so it's worth coding tightly. */
-  register INT32 put_buffer = (INT32) code;
-  register int put_bits = entropy->put_bits;
-
-  /* if size is 0, caller used an invalid Huffman table entry */
-  if (size == 0)
-    ERREXIT(entropy->cinfo, JERR_HUFF_MISSING_CODE);
-
-  if (entropy->gather_statistics)
-    return;			/* do nothing if we're only getting stats */
-
-  put_buffer &= (((INT32) 1)<<size) - 1; /* mask off any extra bits in code */
-  
-  put_bits += size;		/* new number of bits in buffer */
-  
-  put_buffer <<= 24 - put_bits; /* align incoming bits */
-
-  put_buffer |= entropy->put_buffer; /* and merge with old buffer contents */
-
-  while (put_bits >= 8) {
-    int c = (int) ((put_buffer >> 16) & 0xFF);
-    
-    emit_byte(entropy, c);
-    if (c == 0xFF) {		/* need to stuff a zero byte? */
-      emit_byte(entropy, 0);
-    }
-    put_buffer <<= 8;
-    put_bits -= 8;
-  }
-
-  entropy->put_buffer = put_buffer; /* update variables */
-  entropy->put_bits = put_bits;
-}
-
-
-LOCAL(void)
-flush_bits (phuff_entropy_ptr entropy)
-{
-  emit_bits(entropy, 0x7F, 7); /* fill any partial byte with ones */
-  entropy->put_buffer = 0;     /* and reset bit-buffer to empty */
-  entropy->put_bits = 0;
-}
-
-
-/*
- * Emit (or just count) a Huffman symbol.
- */
-
-INLINE
-LOCAL(void)
-emit_symbol (phuff_entropy_ptr entropy, int tbl_no, int symbol)
-{
-  if (entropy->gather_statistics)
-    entropy->count_ptrs[tbl_no][symbol]++;
-  else {
-    c_derived_tbl * tbl = entropy->derived_tbls[tbl_no];
-    emit_bits(entropy, tbl->ehufco[symbol], tbl->ehufsi[symbol]);
-  }
-}
-
-
-/*
- * Emit bits from a correction bit buffer.
- */
-
-LOCAL(void)
-emit_buffered_bits (phuff_entropy_ptr entropy, char * bufstart,
-		    unsigned int nbits)
-{
-  if (entropy->gather_statistics)
-    return;			/* no real work */
-
-  while (nbits > 0) {
-    emit_bits(entropy, (unsigned int) (*bufstart), 1);
-    bufstart++;
-    nbits--;
-  }
-}
-
-
-/*
- * Emit any pending EOBRUN symbol.
- */
-
-LOCAL(void)
-emit_eobrun (phuff_entropy_ptr entropy)
-{
-  register int temp, nbits;
-
-  if (entropy->EOBRUN > 0) {	/* if there is any pending EOBRUN */
-    temp = entropy->EOBRUN;
-    nbits = 0;
-    while ((temp >>= 1))
-      nbits++;
-    /* safety check: shouldn't happen given limited correction-bit buffer */
-    if (nbits > 14)
-      ERREXIT(entropy->cinfo, JERR_HUFF_MISSING_CODE);
-
-    emit_symbol(entropy, entropy->ac_tbl_no, nbits << 4);
-    if (nbits)
-      emit_bits(entropy, entropy->EOBRUN, nbits);
-
-    entropy->EOBRUN = 0;
-
-    /* Emit any buffered correction bits */
-    emit_buffered_bits(entropy, entropy->bit_buffer, entropy->BE);
-    entropy->BE = 0;
-  }
-}
-
-
-/*
- * Emit a restart marker & resynchronize predictions.
- */
-
-LOCAL(void)
-emit_restart (phuff_entropy_ptr entropy, int restart_num)
-{
-  int ci;
-
-  emit_eobrun(entropy);
-
-  if (! entropy->gather_statistics) {
-    flush_bits(entropy);
-    emit_byte(entropy, 0xFF);
-    emit_byte(entropy, JPEG_RST0 + restart_num);
-  }
-
-  if (entropy->cinfo->Ss == 0) {
-    /* Re-initialize DC predictions to 0 */
-    for (ci = 0; ci < entropy->cinfo->comps_in_scan; ci++)
-      entropy->last_dc_val[ci] = 0;
-  } else {
-    /* Re-initialize all AC-related fields to 0 */
-    entropy->EOBRUN = 0;
-    entropy->BE = 0;
-  }
-}
-
-
-/*
- * MCU encoding for DC initial scan (either spectral selection,
- * or first pass of successive approximation).
- */
-
-METHODDEF(boolean)
-encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
-{
-  phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
-  register int temp, temp2;
-  register int nbits;
-  int blkn, ci;
-  int Al = cinfo->Al;
-  JBLOCKROW block;
-  jpeg_component_info * compptr;
-  ISHIFT_TEMPS
-
-  entropy->next_output_byte = cinfo->dest->next_output_byte;
-  entropy->free_in_buffer = cinfo->dest->free_in_buffer;
-
-  /* Emit restart marker if needed */
-  if (cinfo->restart_interval)
-    if (entropy->restarts_to_go == 0)
-      emit_restart(entropy, entropy->next_restart_num);
-
-  /* Encode the MCU data blocks */
-  for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
-    block = MCU_data[blkn];
-    ci = cinfo->MCU_membership[blkn];
-    compptr = cinfo->cur_comp_info[ci];
-
-    /* Compute the DC value after the required point transform by Al.
-     * This is simply an arithmetic right shift.
-     */
-    temp2 = IRIGHT_SHIFT((int) ((*block)[0]), Al);
-
-    /* DC differences are figured on the point-transformed values. */
-    temp = temp2 - entropy->last_dc_val[ci];
-    entropy->last_dc_val[ci] = temp2;
-
-    /* Encode the DC coefficient difference per section G.1.2.1 */
-    temp2 = temp;
-    if (temp < 0) {
-      temp = -temp;		/* temp is abs value of input */
-      /* For a negative input, want temp2 = bitwise complement of abs(input) */
-      /* This code assumes we are on a two's complement machine */
-      temp2--;
-    }
-    
-    /* Find the number of bits needed for the magnitude of the coefficient */
-    nbits = 0;
-    while (temp) {
-      nbits++;
-      temp >>= 1;
-    }
-    /* Check for out-of-range coefficient values.
-     * Since we're encoding a difference, the range limit is twice as much.
-     */
-    if (nbits > MAX_COEF_BITS+1)
-      ERREXIT(cinfo, JERR_BAD_DCT_COEF);
-    
-    /* Count/emit the Huffman-coded symbol for the number of bits */
-    emit_symbol(entropy, compptr->dc_tbl_no, nbits);
-    
-    /* Emit that number of bits of the value, if positive, */
-    /* or the complement of its magnitude, if negative. */
-    if (nbits)			/* emit_bits rejects calls with size 0 */
-      emit_bits(entropy, (unsigned int) temp2, nbits);
-  }
-
-  cinfo->dest->next_output_byte = entropy->next_output_byte;
-  cinfo->dest->free_in_buffer = entropy->free_in_buffer;
-
-  /* Update restart-interval state too */
-  if (cinfo->restart_interval) {
-    if (entropy->restarts_to_go == 0) {
-      entropy->restarts_to_go = cinfo->restart_interval;
-      entropy->next_restart_num++;
-      entropy->next_restart_num &= 7;
-    }
-    entropy->restarts_to_go--;
-  }
-
-  return TRUE;
-}
-
-
-/*
- * MCU encoding for AC initial scan (either spectral selection,
- * or first pass of successive approximation).
- */
-
-METHODDEF(boolean)
-encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
-{
-  phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
-  register int temp, temp2;
-  register int nbits;
-  register int r, k;
-  int Se = cinfo->Se;
-  int Al = cinfo->Al;
-  JBLOCKROW block;
-
-  entropy->next_output_byte = cinfo->dest->next_output_byte;
-  entropy->free_in_buffer = cinfo->dest->free_in_buffer;
-
-  /* Emit restart marker if needed */
-  if (cinfo->restart_interval)
-    if (entropy->restarts_to_go == 0)
-      emit_restart(entropy, entropy->next_restart_num);
-
-  /* Encode the MCU data block */
-  block = MCU_data[0];
-
-  /* Encode the AC coefficients per section G.1.2.2, fig. G.3 */
-  
-  r = 0;			/* r = run length of zeros */
-   
-  for (k = cinfo->Ss; k <= Se; k++) {
-    if ((temp = (*block)[jpeg_natural_order[k]]) == 0) {
-      r++;
-      continue;
-    }
-    /* We must apply the point transform by Al.  For AC coefficients this
-     * is an integer division with rounding towards 0.  To do this portably
-     * in C, we shift after obtaining the absolute value; so the code is
-     * interwoven with finding the abs value (temp) and output bits (temp2).
-     */
-    if (temp < 0) {
-      temp = -temp;		/* temp is abs value of input */
-      temp >>= Al;		/* apply the point transform */
-      /* For a negative coef, want temp2 = bitwise complement of abs(coef) */
-      temp2 = ~temp;
-    } else {
-      temp >>= Al;		/* apply the point transform */
-      temp2 = temp;
-    }
-    /* Watch out for case that nonzero coef is zero after point transform */
-    if (temp == 0) {
-      r++;
-      continue;
-    }
-
-    /* Emit any pending EOBRUN */
-    if (entropy->EOBRUN > 0)
-      emit_eobrun(entropy);
-    /* if run length > 15, must emit special run-length-16 codes (0xF0) */
-    while (r > 15) {
-      emit_symbol(entropy, entropy->ac_tbl_no, 0xF0);
-      r -= 16;
-    }
-
-    /* Find the number of bits needed for the magnitude of the coefficient */
-    nbits = 1;			/* there must be at least one 1 bit */
-    while ((temp >>= 1))
-      nbits++;
-    /* Check for out-of-range coefficient values */
-    if (nbits > MAX_COEF_BITS)
-      ERREXIT(cinfo, JERR_BAD_DCT_COEF);
-
-    /* Count/emit Huffman symbol for run length / number of bits */
-    emit_symbol(entropy, entropy->ac_tbl_no, (r << 4) + nbits);
-
-    /* Emit that number of bits of the value, if positive, */
-    /* or the complement of its magnitude, if negative. */
-    emit_bits(entropy, (unsigned int) temp2, nbits);
-
-    r = 0;			/* reset zero run length */
-  }
-
-  if (r > 0) {			/* If there are trailing zeroes, */
-    entropy->EOBRUN++;		/* count an EOB */
-    if (entropy->EOBRUN == 0x7FFF)
-      emit_eobrun(entropy);	/* force it out to avoid overflow */
-  }
-
-  cinfo->dest->next_output_byte = entropy->next_output_byte;
-  cinfo->dest->free_in_buffer = entropy->free_in_buffer;
-
-  /* Update restart-interval state too */
-  if (cinfo->restart_interval) {
-    if (entropy->restarts_to_go == 0) {
-      entropy->restarts_to_go = cinfo->restart_interval;
-      entropy->next_restart_num++;
-      entropy->next_restart_num &= 7;
-    }
-    entropy->restarts_to_go--;
-  }
-
-  return TRUE;
-}
-
-
-/*
- * MCU encoding for DC successive approximation refinement scan.
- * Note: we assume such scans can be multi-component, although the spec
- * is not very clear on the point.
- */
-
-METHODDEF(boolean)
-encode_mcu_DC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
-{
-  phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
-  register int temp;
-  int blkn;
-  int Al = cinfo->Al;
-  JBLOCKROW block;
-
-  entropy->next_output_byte = cinfo->dest->next_output_byte;
-  entropy->free_in_buffer = cinfo->dest->free_in_buffer;
-
-  /* Emit restart marker if needed */
-  if (cinfo->restart_interval)
-    if (entropy->restarts_to_go == 0)
-      emit_restart(entropy, entropy->next_restart_num);
-
-  /* Encode the MCU data blocks */
-  for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
-    block = MCU_data[blkn];
-
-    /* We simply emit the Al'th bit of the DC coefficient value. */
-    temp = (*block)[0];
-    emit_bits(entropy, (unsigned int) (temp >> Al), 1);
-  }
-
-  cinfo->dest->next_output_byte = entropy->next_output_byte;
-  cinfo->dest->free_in_buffer = entropy->free_in_buffer;
-
-  /* Update restart-interval state too */
-  if (cinfo->restart_interval) {
-    if (entropy->restarts_to_go == 0) {
-      entropy->restarts_to_go = cinfo->restart_interval;
-      entropy->next_restart_num++;
-      entropy->next_restart_num &= 7;
-    }
-    entropy->restarts_to_go--;
-  }
-
-  return TRUE;
-}
-
-
-/*
- * MCU encoding for AC successive approximation refinement scan.
- */
-
-METHODDEF(boolean)
-encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
-{
-  phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
-  register int temp;
-  register int r, k;
-  int EOB;
-  char *BR_buffer;
-  unsigned int BR;
-  int Se = cinfo->Se;
-  int Al = cinfo->Al;
-  JBLOCKROW block;
-  int absvalues[DCTSIZE2];
-
-  entropy->next_output_byte = cinfo->dest->next_output_byte;
-  entropy->free_in_buffer = cinfo->dest->free_in_buffer;
-
-  /* Emit restart marker if needed */
-  if (cinfo->restart_interval)
-    if (entropy->restarts_to_go == 0)
-      emit_restart(entropy, entropy->next_restart_num);
-
-  /* Encode the MCU data block */
-  block = MCU_data[0];
-
-  /* It is convenient to make a pre-pass to determine the transformed
-   * coefficients' absolute values and the EOB position.
-   */
-  EOB = 0;
-  for (k = cinfo->Ss; k <= Se; k++) {
-    temp = (*block)[jpeg_natural_order[k]];
-    /* We must apply the point transform by Al.  For AC coefficients this
-     * is an integer division with rounding towards 0.  To do this portably
-     * in C, we shift after obtaining the absolute value.
-     */
-    if (temp < 0)
-      temp = -temp;		/* temp is abs value of input */
-    temp >>= Al;		/* apply the point transform */
-    absvalues[k] = temp;	/* save abs value for main pass */
-    if (temp == 1)
-      EOB = k;			/* EOB = index of last newly-nonzero coef */
-  }
-
-  /* Encode the AC coefficients per section G.1.2.3, fig. G.7 */
-  
-  r = 0;			/* r = run length of zeros */
-  BR = 0;			/* BR = count of buffered bits added now */
-  BR_buffer = entropy->bit_buffer + entropy->BE; /* Append bits to buffer */
-
-  for (k = cinfo->Ss; k <= Se; k++) {
-    if ((temp = absvalues[k]) == 0) {
-      r++;
-      continue;
-    }
-
-    /* Emit any required ZRLs, but not if they can be folded into EOB */
-    while (r > 15 && k <= EOB) {
-      /* emit any pending EOBRUN and the BE correction bits */
-      emit_eobrun(entropy);
-      /* Emit ZRL */
-      emit_symbol(entropy, entropy->ac_tbl_no, 0xF0);
-      r -= 16;
-      /* Emit buffered correction bits that must be associated with ZRL */
-      emit_buffered_bits(entropy, BR_buffer, BR);
-      BR_buffer = entropy->bit_buffer; /* BE bits are gone now */
-      BR = 0;
-    }
-
-    /* If the coef was previously nonzero, it only needs a correction bit.
-     * NOTE: a straight translation of the spec's figure G.7 would suggest
-     * that we also need to test r > 15.  But if r > 15, we can only get here
-     * if k > EOB, which implies that this coefficient is not 1.
-     */
-    if (temp > 1) {
-      /* The correction bit is the next bit of the absolute value. */
-      BR_buffer[BR++] = (char) (temp & 1);
-      continue;
-    }
-
-    /* Emit any pending EOBRUN and the BE correction bits */
-    emit_eobrun(entropy);
-
-    /* Count/emit Huffman symbol for run length / number of bits */
-    emit_symbol(entropy, entropy->ac_tbl_no, (r << 4) + 1);
-
-    /* Emit output bit for newly-nonzero coef */
-    temp = ((*block)[jpeg_natural_order[k]] < 0) ? 0 : 1;
-    emit_bits(entropy, (unsigned int) temp, 1);
-
-    /* Emit buffered correction bits that must be associated with this code */
-    emit_buffered_bits(entropy, BR_buffer, BR);
-    BR_buffer = entropy->bit_buffer; /* BE bits are gone now */
-    BR = 0;
-    r = 0;			/* reset zero run length */
-  }
-
-  if (r > 0 || BR > 0) {	/* If there are trailing zeroes, */
-    entropy->EOBRUN++;		/* count an EOB */
-    entropy->BE += BR;		/* concat my correction bits to older ones */
-    /* We force out the EOB if we risk either:
-     * 1. overflow of the EOB counter;
-     * 2. overflow of the correction bit buffer during the next MCU.
-     */
-    if (entropy->EOBRUN == 0x7FFF || entropy->BE > (MAX_CORR_BITS-DCTSIZE2+1))
-      emit_eobrun(entropy);
-  }
-
-  cinfo->dest->next_output_byte = entropy->next_output_byte;
-  cinfo->dest->free_in_buffer = entropy->free_in_buffer;
-
-  /* Update restart-interval state too */
-  if (cinfo->restart_interval) {
-    if (entropy->restarts_to_go == 0) {
-      entropy->restarts_to_go = cinfo->restart_interval;
-      entropy->next_restart_num++;
-      entropy->next_restart_num &= 7;
-    }
-    entropy->restarts_to_go--;
-  }
-
-  return TRUE;
-}
-
-
-/*
- * Finish up at the end of a Huffman-compressed progressive scan.
- */
-
-METHODDEF(void)
-finish_pass_phuff (j_compress_ptr cinfo)
-{   
-  phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
-
-  entropy->next_output_byte = cinfo->dest->next_output_byte;
-  entropy->free_in_buffer = cinfo->dest->free_in_buffer;
-
-  /* Flush out any buffered data */
-  emit_eobrun(entropy);
-  flush_bits(entropy);
-
-  cinfo->dest->next_output_byte = entropy->next_output_byte;
-  cinfo->dest->free_in_buffer = entropy->free_in_buffer;
-}
-
-
-/*
- * Finish up a statistics-gathering pass and create the new Huffman tables.
- */
-
-METHODDEF(void)
-finish_pass_gather_phuff (j_compress_ptr cinfo)
-{
-  phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
-  boolean is_DC_band;
-  int ci, tbl;
-  jpeg_component_info * compptr;
-  JHUFF_TBL **htblptr;
-  boolean did[NUM_HUFF_TBLS];
-
-  /* Flush out buffered data (all we care about is counting the EOB symbol) */
-  emit_eobrun(entropy);
-
-  is_DC_band = (cinfo->Ss == 0);
-
-  /* It's important not to apply jpeg_gen_optimal_table more than once
-   * per table, because it clobbers the input frequency counts!
-   */
-  MEMZERO(did, SIZEOF(did));
-
-  for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-    compptr = cinfo->cur_comp_info[ci];
-    if (is_DC_band) {
-      if (cinfo->Ah != 0)	/* DC refinement needs no table */
-	continue;
-      tbl = compptr->dc_tbl_no;
-    } else {
-      tbl = compptr->ac_tbl_no;
-    }
-    if (! did[tbl]) {
-      if (is_DC_band)
-        htblptr = & cinfo->dc_huff_tbl_ptrs[tbl];
-      else
-        htblptr = & cinfo->ac_huff_tbl_ptrs[tbl];
-      if (*htblptr == NULL)
-        *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo);
-      jpeg_gen_optimal_table(cinfo, *htblptr, entropy->count_ptrs[tbl]);
-      did[tbl] = TRUE;
-    }
-  }
-}
-
-
-/*
- * Module initialization routine for progressive Huffman entropy encoding.
- */
-
-GLOBAL(void)
-jinit_phuff_encoder (j_compress_ptr cinfo)
-{
-  phuff_entropy_ptr entropy;
-  int i;
-
-  entropy = (phuff_entropy_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(phuff_entropy_encoder));
-  cinfo->entropy = (struct jpeg_entropy_encoder *) entropy;
-  entropy->pub.start_pass = start_pass_phuff;
-
-  /* Mark tables unallocated */
-  for (i = 0; i < NUM_HUFF_TBLS; i++) {
-    entropy->derived_tbls[i] = NULL;
-    entropy->count_ptrs[i] = NULL;
-  }
-  entropy->bit_buffer = NULL;	/* needed only in AC refinement scan */
-}
-
-#endif /* C_PROGRESSIVE_SUPPORTED */
diff --git a/src/3rdparty/libjpeg/jcprepct.c b/src/3rdparty/libjpeg/jcprepct.c
deleted file mode 100644
index fa93333db..000000000
--- a/src/3rdparty/libjpeg/jcprepct.c
+++ /dev/null
@@ -1,354 +0,0 @@
-/*
- * jcprepct.c
- *
- * Copyright (C) 1994-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains the compression preprocessing controller.
- * This controller manages the color conversion, downsampling,
- * and edge expansion steps.
- *
- * Most of the complexity here is associated with buffering input rows
- * as required by the downsampler.  See the comments at the head of
- * jcsample.c for the downsampler's needs.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/* At present, jcsample.c can request context rows only for smoothing.
- * In the future, we might also need context rows for CCIR601 sampling
- * or other more-complex downsampling procedures.  The code to support
- * context rows should be compiled only if needed.
- */
-#ifdef INPUT_SMOOTHING_SUPPORTED
-#define CONTEXT_ROWS_SUPPORTED
-#endif
-
-
-/*
- * For the simple (no-context-row) case, we just need to buffer one
- * row group's worth of pixels for the downsampling step.  At the bottom of
- * the image, we pad to a full row group by replicating the last pixel row.
- * The downsampler's last output row is then replicated if needed to pad
- * out to a full iMCU row.
- *
- * When providing context rows, we must buffer three row groups' worth of
- * pixels.  Three row groups are physically allocated, but the row pointer
- * arrays are made five row groups high, with the extra pointers above and
- * below "wrapping around" to point to the last and first real row groups.
- * This allows the downsampler to access the proper context rows.
- * At the top and bottom of the image, we create dummy context rows by
- * copying the first or last real pixel row.  This copying could be avoided
- * by pointer hacking as is done in jdmainct.c, but it doesn't seem worth the
- * trouble on the compression side.
- */
-
-
-/* Private buffer controller object */
-
-typedef struct {
-  struct jpeg_c_prep_controller pub; /* public fields */
-
-  /* Downsampling input buffer.  This buffer holds color-converted data
-   * until we have enough to do a downsample step.
-   */
-  JSAMPARRAY color_buf[MAX_COMPONENTS];
-
-  JDIMENSION rows_to_go;	/* counts rows remaining in source image */
-  int next_buf_row;		/* index of next row to store in color_buf */
-
-#ifdef CONTEXT_ROWS_SUPPORTED	/* only needed for context case */
-  int this_row_group;		/* starting row index of group to process */
-  int next_buf_stop;		/* downsample when we reach this index */
-#endif
-} my_prep_controller;
-
-typedef my_prep_controller * my_prep_ptr;
-
-
-/*
- * Initialize for a processing pass.
- */
-
-METHODDEF(void)
-start_pass_prep (j_compress_ptr cinfo, J_BUF_MODE pass_mode)
-{
-  my_prep_ptr prep = (my_prep_ptr) cinfo->prep;
-
-  if (pass_mode != JBUF_PASS_THRU)
-    ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-
-  /* Initialize total-height counter for detecting bottom of image */
-  prep->rows_to_go = cinfo->image_height;
-  /* Mark the conversion buffer empty */
-  prep->next_buf_row = 0;
-#ifdef CONTEXT_ROWS_SUPPORTED
-  /* Preset additional state variables for context mode.
-   * These aren't used in non-context mode, so we needn't test which mode.
-   */
-  prep->this_row_group = 0;
-  /* Set next_buf_stop to stop after two row groups have been read in. */
-  prep->next_buf_stop = 2 * cinfo->max_v_samp_factor;
-#endif
-}
-
-
-/*
- * Expand an image vertically from height input_rows to height output_rows,
- * by duplicating the bottom row.
- */
-
-LOCAL(void)
-expand_bottom_edge (JSAMPARRAY image_data, JDIMENSION num_cols,
-		    int input_rows, int output_rows)
-{
-  register int row;
-
-  for (row = input_rows; row < output_rows; row++) {
-    jcopy_sample_rows(image_data, input_rows-1, image_data, row,
-		      1, num_cols);
-  }
-}
-
-
-/*
- * Process some data in the simple no-context case.
- *
- * Preprocessor output data is counted in "row groups".  A row group
- * is defined to be v_samp_factor sample rows of each component.
- * Downsampling will produce this much data from each max_v_samp_factor
- * input rows.
- */
-
-METHODDEF(void)
-pre_process_data (j_compress_ptr cinfo,
-		  JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
-		  JDIMENSION in_rows_avail,
-		  JSAMPIMAGE output_buf, JDIMENSION *out_row_group_ctr,
-		  JDIMENSION out_row_groups_avail)
-{
-  my_prep_ptr prep = (my_prep_ptr) cinfo->prep;
-  int numrows, ci;
-  JDIMENSION inrows;
-  jpeg_component_info * compptr;
-
-  while (*in_row_ctr < in_rows_avail &&
-	 *out_row_group_ctr < out_row_groups_avail) {
-    /* Do color conversion to fill the conversion buffer. */
-    inrows = in_rows_avail - *in_row_ctr;
-    numrows = cinfo->max_v_samp_factor - prep->next_buf_row;
-    numrows = (int) MIN((JDIMENSION) numrows, inrows);
-    (*cinfo->cconvert->color_convert) (cinfo, input_buf + *in_row_ctr,
-				       prep->color_buf,
-				       (JDIMENSION) prep->next_buf_row,
-				       numrows);
-    *in_row_ctr += numrows;
-    prep->next_buf_row += numrows;
-    prep->rows_to_go -= numrows;
-    /* If at bottom of image, pad to fill the conversion buffer. */
-    if (prep->rows_to_go == 0 &&
-	prep->next_buf_row < cinfo->max_v_samp_factor) {
-      for (ci = 0; ci < cinfo->num_components; ci++) {
-	expand_bottom_edge(prep->color_buf[ci], cinfo->image_width,
-			   prep->next_buf_row, cinfo->max_v_samp_factor);
-      }
-      prep->next_buf_row = cinfo->max_v_samp_factor;
-    }
-    /* If we've filled the conversion buffer, empty it. */
-    if (prep->next_buf_row == cinfo->max_v_samp_factor) {
-      (*cinfo->downsample->downsample) (cinfo,
-					prep->color_buf, (JDIMENSION) 0,
-					output_buf, *out_row_group_ctr);
-      prep->next_buf_row = 0;
-      (*out_row_group_ctr)++;
-    }
-    /* If at bottom of image, pad the output to a full iMCU height.
-     * Note we assume the caller is providing a one-iMCU-height output buffer!
-     */
-    if (prep->rows_to_go == 0 &&
-	*out_row_group_ctr < out_row_groups_avail) {
-      for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-	   ci++, compptr++) {
-	expand_bottom_edge(output_buf[ci],
-			   compptr->width_in_blocks * DCTSIZE,
-			   (int) (*out_row_group_ctr * compptr->v_samp_factor),
-			   (int) (out_row_groups_avail * compptr->v_samp_factor));
-      }
-      *out_row_group_ctr = out_row_groups_avail;
-      break;			/* can exit outer loop without test */
-    }
-  }
-}
-
-
-#ifdef CONTEXT_ROWS_SUPPORTED
-
-/*
- * Process some data in the context case.
- */
-
-METHODDEF(void)
-pre_process_context (j_compress_ptr cinfo,
-		     JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
-		     JDIMENSION in_rows_avail,
-		     JSAMPIMAGE output_buf, JDIMENSION *out_row_group_ctr,
-		     JDIMENSION out_row_groups_avail)
-{
-  my_prep_ptr prep = (my_prep_ptr) cinfo->prep;
-  int numrows, ci;
-  int buf_height = cinfo->max_v_samp_factor * 3;
-  JDIMENSION inrows;
-
-  while (*out_row_group_ctr < out_row_groups_avail) {
-    if (*in_row_ctr < in_rows_avail) {
-      /* Do color conversion to fill the conversion buffer. */
-      inrows = in_rows_avail - *in_row_ctr;
-      numrows = prep->next_buf_stop - prep->next_buf_row;
-      numrows = (int) MIN((JDIMENSION) numrows, inrows);
-      (*cinfo->cconvert->color_convert) (cinfo, input_buf + *in_row_ctr,
-					 prep->color_buf,
-					 (JDIMENSION) prep->next_buf_row,
-					 numrows);
-      /* Pad at top of image, if first time through */
-      if (prep->rows_to_go == cinfo->image_height) {
-	for (ci = 0; ci < cinfo->num_components; ci++) {
-	  int row;
-	  for (row = 1; row <= cinfo->max_v_samp_factor; row++) {
-	    jcopy_sample_rows(prep->color_buf[ci], 0,
-			      prep->color_buf[ci], -row,
-			      1, cinfo->image_width);
-	  }
-	}
-      }
-      *in_row_ctr += numrows;
-      prep->next_buf_row += numrows;
-      prep->rows_to_go -= numrows;
-    } else {
-      /* Return for more data, unless we are at the bottom of the image. */
-      if (prep->rows_to_go != 0)
-	break;
-      /* When at bottom of image, pad to fill the conversion buffer. */
-      if (prep->next_buf_row < prep->next_buf_stop) {
-	for (ci = 0; ci < cinfo->num_components; ci++) {
-	  expand_bottom_edge(prep->color_buf[ci], cinfo->image_width,
-			     prep->next_buf_row, prep->next_buf_stop);
-	}
-	prep->next_buf_row = prep->next_buf_stop;
-      }
-    }
-    /* If we've gotten enough data, downsample a row group. */
-    if (prep->next_buf_row == prep->next_buf_stop) {
-      (*cinfo->downsample->downsample) (cinfo,
-					prep->color_buf,
-					(JDIMENSION) prep->this_row_group,
-					output_buf, *out_row_group_ctr);
-      (*out_row_group_ctr)++;
-      /* Advance pointers with wraparound as necessary. */
-      prep->this_row_group += cinfo->max_v_samp_factor;
-      if (prep->this_row_group >= buf_height)
-	prep->this_row_group = 0;
-      if (prep->next_buf_row >= buf_height)
-	prep->next_buf_row = 0;
-      prep->next_buf_stop = prep->next_buf_row + cinfo->max_v_samp_factor;
-    }
-  }
-}
-
-
-/*
- * Create the wrapped-around downsampling input buffer needed for context mode.
- */
-
-LOCAL(void)
-create_context_buffer (j_compress_ptr cinfo)
-{
-  my_prep_ptr prep = (my_prep_ptr) cinfo->prep;
-  int rgroup_height = cinfo->max_v_samp_factor;
-  int ci, i;
-  jpeg_component_info * compptr;
-  JSAMPARRAY true_buffer, fake_buffer;
-
-  /* Grab enough space for fake row pointers for all the components;
-   * we need five row groups' worth of pointers for each component.
-   */
-  fake_buffer = (JSAMPARRAY)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				(cinfo->num_components * 5 * rgroup_height) *
-				SIZEOF(JSAMPROW));
-
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    /* Allocate the actual buffer space (3 row groups) for this component.
-     * We make the buffer wide enough to allow the downsampler to edge-expand
-     * horizontally within the buffer, if it so chooses.
-     */
-    true_buffer = (*cinfo->mem->alloc_sarray)
-      ((j_common_ptr) cinfo, JPOOL_IMAGE,
-       (JDIMENSION) (((long) compptr->width_in_blocks * DCTSIZE *
-		      cinfo->max_h_samp_factor) / compptr->h_samp_factor),
-       (JDIMENSION) (3 * rgroup_height));
-    /* Copy true buffer row pointers into the middle of the fake row array */
-    MEMCOPY(fake_buffer + rgroup_height, true_buffer,
-	    3 * rgroup_height * SIZEOF(JSAMPROW));
-    /* Fill in the above and below wraparound pointers */
-    for (i = 0; i < rgroup_height; i++) {
-      fake_buffer[i] = true_buffer[2 * rgroup_height + i];
-      fake_buffer[4 * rgroup_height + i] = true_buffer[i];
-    }
-    prep->color_buf[ci] = fake_buffer + rgroup_height;
-    fake_buffer += 5 * rgroup_height; /* point to space for next component */
-  }
-}
-
-#endif /* CONTEXT_ROWS_SUPPORTED */
-
-
-/*
- * Initialize preprocessing controller.
- */
-
-GLOBAL(void)
-jinit_c_prep_controller (j_compress_ptr cinfo, boolean need_full_buffer)
-{
-  my_prep_ptr prep;
-  int ci;
-  jpeg_component_info * compptr;
-
-  if (need_full_buffer)		/* safety check */
-    ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-
-  prep = (my_prep_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_prep_controller));
-  cinfo->prep = (struct jpeg_c_prep_controller *) prep;
-  prep->pub.start_pass = start_pass_prep;
-
-  /* Allocate the color conversion buffer.
-   * We make the buffer wide enough to allow the downsampler to edge-expand
-   * horizontally within the buffer, if it so chooses.
-   */
-  if (cinfo->downsample->need_context_rows) {
-    /* Set up to provide context rows */
-#ifdef CONTEXT_ROWS_SUPPORTED
-    prep->pub.pre_process_data = pre_process_context;
-    create_context_buffer(cinfo);
-#else
-    ERREXIT(cinfo, JERR_NOT_COMPILED);
-#endif
-  } else {
-    /* No context, just make it tall enough for one row group */
-    prep->pub.pre_process_data = pre_process_data;
-    for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-	 ci++, compptr++) {
-      prep->color_buf[ci] = (*cinfo->mem->alloc_sarray)
-	((j_common_ptr) cinfo, JPOOL_IMAGE,
-	 (JDIMENSION) (((long) compptr->width_in_blocks * DCTSIZE *
-			cinfo->max_h_samp_factor) / compptr->h_samp_factor),
-	 (JDIMENSION) cinfo->max_v_samp_factor);
-    }
-  }
-}
diff --git a/src/3rdparty/libjpeg/jcsample.c b/src/3rdparty/libjpeg/jcsample.c
deleted file mode 100644
index 212ec8757..000000000
--- a/src/3rdparty/libjpeg/jcsample.c
+++ /dev/null
@@ -1,519 +0,0 @@
-/*
- * jcsample.c
- *
- * Copyright (C) 1991-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains downsampling routines.
- *
- * Downsampling input data is counted in "row groups".  A row group
- * is defined to be max_v_samp_factor pixel rows of each component,
- * from which the downsampler produces v_samp_factor sample rows.
- * A single row group is processed in each call to the downsampler module.
- *
- * The downsampler is responsible for edge-expansion of its output data
- * to fill an integral number of DCT blocks horizontally.  The source buffer
- * may be modified if it is helpful for this purpose (the source buffer is
- * allocated wide enough to correspond to the desired output width).
- * The caller (the prep controller) is responsible for vertical padding.
- *
- * The downsampler may request "context rows" by setting need_context_rows
- * during startup.  In this case, the input arrays will contain at least
- * one row group's worth of pixels above and below the passed-in data;
- * the caller will create dummy rows at image top and bottom by replicating
- * the first or last real pixel row.
- *
- * An excellent reference for image resampling is
- *   Digital Image Warping, George Wolberg, 1990.
- *   Pub. by IEEE Computer Society Press, Los Alamitos, CA. ISBN 0-8186-8944-7.
- *
- * The downsampling algorithm used here is a simple average of the source
- * pixels covered by the output pixel.  The hi-falutin sampling literature
- * refers to this as a "box filter".  In general the characteristics of a box
- * filter are not very good, but for the specific cases we normally use (1:1
- * and 2:1 ratios) the box is equivalent to a "triangle filter" which is not
- * nearly so bad.  If you intend to use other sampling ratios, you'd be well
- * advised to improve this code.
- *
- * A simple input-smoothing capability is provided.  This is mainly intended
- * for cleaning up color-dithered GIF input files (if you find it inadequate,
- * we suggest using an external filtering program such as pnmconvol).  When
- * enabled, each input pixel P is replaced by a weighted sum of itself and its
- * eight neighbors.  P's weight is 1-8*SF and each neighbor's weight is SF,
- * where SF = (smoothing_factor / 1024).
- * Currently, smoothing is only supported for 2h2v sampling factors.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/* Pointer to routine to downsample a single component */
-typedef JMETHOD(void, downsample1_ptr,
-		(j_compress_ptr cinfo, jpeg_component_info * compptr,
-		 JSAMPARRAY input_data, JSAMPARRAY output_data));
-
-/* Private subobject */
-
-typedef struct {
-  struct jpeg_downsampler pub;	/* public fields */
-
-  /* Downsampling method pointers, one per component */
-  downsample1_ptr methods[MAX_COMPONENTS];
-} my_downsampler;
-
-typedef my_downsampler * my_downsample_ptr;
-
-
-/*
- * Initialize for a downsampling pass.
- */
-
-METHODDEF(void)
-start_pass_downsample (j_compress_ptr cinfo)
-{
-  /* no work for now */
-}
-
-
-/*
- * Expand a component horizontally from width input_cols to width output_cols,
- * by duplicating the rightmost samples.
- */
-
-LOCAL(void)
-expand_right_edge (JSAMPARRAY image_data, int num_rows,
-		   JDIMENSION input_cols, JDIMENSION output_cols)
-{
-  register JSAMPROW ptr;
-  register JSAMPLE pixval;
-  register int count;
-  int row;
-  int numcols = (int) (output_cols - input_cols);
-
-  if (numcols > 0) {
-    for (row = 0; row < num_rows; row++) {
-      ptr = image_data[row] + input_cols;
-      pixval = ptr[-1];		/* don't need GETJSAMPLE() here */
-      for (count = numcols; count > 0; count--)
-	*ptr++ = pixval;
-    }
-  }
-}
-
-
-/*
- * Do downsampling for a whole row group (all components).
- *
- * In this version we simply downsample each component independently.
- */
-
-METHODDEF(void)
-sep_downsample (j_compress_ptr cinfo,
-		JSAMPIMAGE input_buf, JDIMENSION in_row_index,
-		JSAMPIMAGE output_buf, JDIMENSION out_row_group_index)
-{
-  my_downsample_ptr downsample = (my_downsample_ptr) cinfo->downsample;
-  int ci;
-  jpeg_component_info * compptr;
-  JSAMPARRAY in_ptr, out_ptr;
-
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    in_ptr = input_buf[ci] + in_row_index;
-    out_ptr = output_buf[ci] + (out_row_group_index * compptr->v_samp_factor);
-    (*downsample->methods[ci]) (cinfo, compptr, in_ptr, out_ptr);
-  }
-}
-
-
-/*
- * Downsample pixel values of a single component.
- * One row group is processed per call.
- * This version handles arbitrary integral sampling ratios, without smoothing.
- * Note that this version is not actually used for customary sampling ratios.
- */
-
-METHODDEF(void)
-int_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr,
-		JSAMPARRAY input_data, JSAMPARRAY output_data)
-{
-  int inrow, outrow, h_expand, v_expand, numpix, numpix2, h, v;
-  JDIMENSION outcol, outcol_h;	/* outcol_h == outcol*h_expand */
-  JDIMENSION output_cols = compptr->width_in_blocks * DCTSIZE;
-  JSAMPROW inptr, outptr;
-  INT32 outvalue;
-
-  h_expand = cinfo->max_h_samp_factor / compptr->h_samp_factor;
-  v_expand = cinfo->max_v_samp_factor / compptr->v_samp_factor;
-  numpix = h_expand * v_expand;
-  numpix2 = numpix/2;
-
-  /* Expand input data enough to let all the output samples be generated
-   * by the standard loop.  Special-casing padded output would be more
-   * efficient.
-   */
-  expand_right_edge(input_data, cinfo->max_v_samp_factor,
-		    cinfo->image_width, output_cols * h_expand);
-
-  inrow = 0;
-  for (outrow = 0; outrow < compptr->v_samp_factor; outrow++) {
-    outptr = output_data[outrow];
-    for (outcol = 0, outcol_h = 0; outcol < output_cols;
-	 outcol++, outcol_h += h_expand) {
-      outvalue = 0;
-      for (v = 0; v < v_expand; v++) {
-	inptr = input_data[inrow+v] + outcol_h;
-	for (h = 0; h < h_expand; h++) {
-	  outvalue += (INT32) GETJSAMPLE(*inptr++);
-	}
-      }
-      *outptr++ = (JSAMPLE) ((outvalue + numpix2) / numpix);
-    }
-    inrow += v_expand;
-  }
-}
-
-
-/*
- * Downsample pixel values of a single component.
- * This version handles the special case of a full-size component,
- * without smoothing.
- */
-
-METHODDEF(void)
-fullsize_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr,
-		     JSAMPARRAY input_data, JSAMPARRAY output_data)
-{
-  /* Copy the data */
-  jcopy_sample_rows(input_data, 0, output_data, 0,
-		    cinfo->max_v_samp_factor, cinfo->image_width);
-  /* Edge-expand */
-  expand_right_edge(output_data, cinfo->max_v_samp_factor,
-		    cinfo->image_width, compptr->width_in_blocks * DCTSIZE);
-}
-
-
-/*
- * Downsample pixel values of a single component.
- * This version handles the common case of 2:1 horizontal and 1:1 vertical,
- * without smoothing.
- *
- * A note about the "bias" calculations: when rounding fractional values to
- * integer, we do not want to always round 0.5 up to the next integer.
- * If we did that, we'd introduce a noticeable bias towards larger values.
- * Instead, this code is arranged so that 0.5 will be rounded up or down at
- * alternate pixel locations (a simple ordered dither pattern).
- */
-
-METHODDEF(void)
-h2v1_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr,
-		 JSAMPARRAY input_data, JSAMPARRAY output_data)
-{
-  int outrow;
-  JDIMENSION outcol;
-  JDIMENSION output_cols = compptr->width_in_blocks * DCTSIZE;
-  register JSAMPROW inptr, outptr;
-  register int bias;
-
-  /* Expand input data enough to let all the output samples be generated
-   * by the standard loop.  Special-casing padded output would be more
-   * efficient.
-   */
-  expand_right_edge(input_data, cinfo->max_v_samp_factor,
-		    cinfo->image_width, output_cols * 2);
-
-  for (outrow = 0; outrow < compptr->v_samp_factor; outrow++) {
-    outptr = output_data[outrow];
-    inptr = input_data[outrow];
-    bias = 0;			/* bias = 0,1,0,1,... for successive samples */
-    for (outcol = 0; outcol < output_cols; outcol++) {
-      *outptr++ = (JSAMPLE) ((GETJSAMPLE(*inptr) + GETJSAMPLE(inptr[1])
-			      + bias) >> 1);
-      bias ^= 1;		/* 0=>1, 1=>0 */
-      inptr += 2;
-    }
-  }
-}
-
-
-/*
- * Downsample pixel values of a single component.
- * This version handles the standard case of 2:1 horizontal and 2:1 vertical,
- * without smoothing.
- */
-
-METHODDEF(void)
-h2v2_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr,
-		 JSAMPARRAY input_data, JSAMPARRAY output_data)
-{
-  int inrow, outrow;
-  JDIMENSION outcol;
-  JDIMENSION output_cols = compptr->width_in_blocks * DCTSIZE;
-  register JSAMPROW inptr0, inptr1, outptr;
-  register int bias;
-
-  /* Expand input data enough to let all the output samples be generated
-   * by the standard loop.  Special-casing padded output would be more
-   * efficient.
-   */
-  expand_right_edge(input_data, cinfo->max_v_samp_factor,
-		    cinfo->image_width, output_cols * 2);
-
-  inrow = 0;
-  for (outrow = 0; outrow < compptr->v_samp_factor; outrow++) {
-    outptr = output_data[outrow];
-    inptr0 = input_data[inrow];
-    inptr1 = input_data[inrow+1];
-    bias = 1;			/* bias = 1,2,1,2,... for successive samples */
-    for (outcol = 0; outcol < output_cols; outcol++) {
-      *outptr++ = (JSAMPLE) ((GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) +
-			      GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1])
-			      + bias) >> 2);
-      bias ^= 3;		/* 1=>2, 2=>1 */
-      inptr0 += 2; inptr1 += 2;
-    }
-    inrow += 2;
-  }
-}
-
-
-#ifdef INPUT_SMOOTHING_SUPPORTED
-
-/*
- * Downsample pixel values of a single component.
- * This version handles the standard case of 2:1 horizontal and 2:1 vertical,
- * with smoothing.  One row of context is required.
- */
-
-METHODDEF(void)
-h2v2_smooth_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr,
-			JSAMPARRAY input_data, JSAMPARRAY output_data)
-{
-  int inrow, outrow;
-  JDIMENSION colctr;
-  JDIMENSION output_cols = compptr->width_in_blocks * DCTSIZE;
-  register JSAMPROW inptr0, inptr1, above_ptr, below_ptr, outptr;
-  INT32 membersum, neighsum, memberscale, neighscale;
-
-  /* Expand input data enough to let all the output samples be generated
-   * by the standard loop.  Special-casing padded output would be more
-   * efficient.
-   */
-  expand_right_edge(input_data - 1, cinfo->max_v_samp_factor + 2,
-		    cinfo->image_width, output_cols * 2);
-
-  /* We don't bother to form the individual "smoothed" input pixel values;
-   * we can directly compute the output which is the average of the four
-   * smoothed values.  Each of the four member pixels contributes a fraction
-   * (1-8*SF) to its own smoothed image and a fraction SF to each of the three
-   * other smoothed pixels, therefore a total fraction (1-5*SF)/4 to the final
-   * output.  The four corner-adjacent neighbor pixels contribute a fraction
-   * SF to just one smoothed pixel, or SF/4 to the final output; while the
-   * eight edge-adjacent neighbors contribute SF to each of two smoothed
-   * pixels, or SF/2 overall.  In order to use integer arithmetic, these
-   * factors are scaled by 2^16 = 65536.
-   * Also recall that SF = smoothing_factor / 1024.
-   */
-
-  memberscale = 16384 - cinfo->smoothing_factor * 80; /* scaled (1-5*SF)/4 */
-  neighscale = cinfo->smoothing_factor * 16; /* scaled SF/4 */
-
-  inrow = 0;
-  for (outrow = 0; outrow < compptr->v_samp_factor; outrow++) {
-    outptr = output_data[outrow];
-    inptr0 = input_data[inrow];
-    inptr1 = input_data[inrow+1];
-    above_ptr = input_data[inrow-1];
-    below_ptr = input_data[inrow+2];
-
-    /* Special case for first column: pretend column -1 is same as column 0 */
-    membersum = GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) +
-		GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]);
-    neighsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[1]) +
-	       GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[1]) +
-	       GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[2]) +
-	       GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[2]);
-    neighsum += neighsum;
-    neighsum += GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[2]) +
-		GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[2]);
-    membersum = membersum * memberscale + neighsum * neighscale;
-    *outptr++ = (JSAMPLE) ((membersum + 32768) >> 16);
-    inptr0 += 2; inptr1 += 2; above_ptr += 2; below_ptr += 2;
-
-    for (colctr = output_cols - 2; colctr > 0; colctr--) {
-      /* sum of pixels directly mapped to this output element */
-      membersum = GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) +
-		  GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]);
-      /* sum of edge-neighbor pixels */
-      neighsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[1]) +
-		 GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[1]) +
-		 GETJSAMPLE(inptr0[-1]) + GETJSAMPLE(inptr0[2]) +
-		 GETJSAMPLE(inptr1[-1]) + GETJSAMPLE(inptr1[2]);
-      /* The edge-neighbors count twice as much as corner-neighbors */
-      neighsum += neighsum;
-      /* Add in the corner-neighbors */
-      neighsum += GETJSAMPLE(above_ptr[-1]) + GETJSAMPLE(above_ptr[2]) +
-		  GETJSAMPLE(below_ptr[-1]) + GETJSAMPLE(below_ptr[2]);
-      /* form final output scaled up by 2^16 */
-      membersum = membersum * memberscale + neighsum * neighscale;
-      /* round, descale and output it */
-      *outptr++ = (JSAMPLE) ((membersum + 32768) >> 16);
-      inptr0 += 2; inptr1 += 2; above_ptr += 2; below_ptr += 2;
-    }
-
-    /* Special case for last column */
-    membersum = GETJSAMPLE(*inptr0) + GETJSAMPLE(inptr0[1]) +
-		GETJSAMPLE(*inptr1) + GETJSAMPLE(inptr1[1]);
-    neighsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(above_ptr[1]) +
-	       GETJSAMPLE(*below_ptr) + GETJSAMPLE(below_ptr[1]) +
-	       GETJSAMPLE(inptr0[-1]) + GETJSAMPLE(inptr0[1]) +
-	       GETJSAMPLE(inptr1[-1]) + GETJSAMPLE(inptr1[1]);
-    neighsum += neighsum;
-    neighsum += GETJSAMPLE(above_ptr[-1]) + GETJSAMPLE(above_ptr[1]) +
-		GETJSAMPLE(below_ptr[-1]) + GETJSAMPLE(below_ptr[1]);
-    membersum = membersum * memberscale + neighsum * neighscale;
-    *outptr = (JSAMPLE) ((membersum + 32768) >> 16);
-
-    inrow += 2;
-  }
-}
-
-
-/*
- * Downsample pixel values of a single component.
- * This version handles the special case of a full-size component,
- * with smoothing.  One row of context is required.
- */
-
-METHODDEF(void)
-fullsize_smooth_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr,
-			    JSAMPARRAY input_data, JSAMPARRAY output_data)
-{
-  int outrow;
-  JDIMENSION colctr;
-  JDIMENSION output_cols = compptr->width_in_blocks * DCTSIZE;
-  register JSAMPROW inptr, above_ptr, below_ptr, outptr;
-  INT32 membersum, neighsum, memberscale, neighscale;
-  int colsum, lastcolsum, nextcolsum;
-
-  /* Expand input data enough to let all the output samples be generated
-   * by the standard loop.  Special-casing padded output would be more
-   * efficient.
-   */
-  expand_right_edge(input_data - 1, cinfo->max_v_samp_factor + 2,
-		    cinfo->image_width, output_cols);
-
-  /* Each of the eight neighbor pixels contributes a fraction SF to the
-   * smoothed pixel, while the main pixel contributes (1-8*SF).  In order
-   * to use integer arithmetic, these factors are multiplied by 2^16 = 65536.
-   * Also recall that SF = smoothing_factor / 1024.
-   */
-
-  memberscale = 65536L - cinfo->smoothing_factor * 512L; /* scaled 1-8*SF */
-  neighscale = cinfo->smoothing_factor * 64; /* scaled SF */
-
-  for (outrow = 0; outrow < compptr->v_samp_factor; outrow++) {
-    outptr = output_data[outrow];
-    inptr = input_data[outrow];
-    above_ptr = input_data[outrow-1];
-    below_ptr = input_data[outrow+1];
-
-    /* Special case for first column */
-    colsum = GETJSAMPLE(*above_ptr++) + GETJSAMPLE(*below_ptr++) +
-	     GETJSAMPLE(*inptr);
-    membersum = GETJSAMPLE(*inptr++);
-    nextcolsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(*below_ptr) +
-		 GETJSAMPLE(*inptr);
-    neighsum = colsum + (colsum - membersum) + nextcolsum;
-    membersum = membersum * memberscale + neighsum * neighscale;
-    *outptr++ = (JSAMPLE) ((membersum + 32768) >> 16);
-    lastcolsum = colsum; colsum = nextcolsum;
-
-    for (colctr = output_cols - 2; colctr > 0; colctr--) {
-      membersum = GETJSAMPLE(*inptr++);
-      above_ptr++; below_ptr++;
-      nextcolsum = GETJSAMPLE(*above_ptr) + GETJSAMPLE(*below_ptr) +
-		   GETJSAMPLE(*inptr);
-      neighsum = lastcolsum + (colsum - membersum) + nextcolsum;
-      membersum = membersum * memberscale + neighsum * neighscale;
-      *outptr++ = (JSAMPLE) ((membersum + 32768) >> 16);
-      lastcolsum = colsum; colsum = nextcolsum;
-    }
-
-    /* Special case for last column */
-    membersum = GETJSAMPLE(*inptr);
-    neighsum = lastcolsum + (colsum - membersum) + colsum;
-    membersum = membersum * memberscale + neighsum * neighscale;
-    *outptr = (JSAMPLE) ((membersum + 32768) >> 16);
-
-  }
-}
-
-#endif /* INPUT_SMOOTHING_SUPPORTED */
-
-
-/*
- * Module initialization routine for downsampling.
- * Note that we must select a routine for each component.
- */
-
-GLOBAL(void)
-jinit_downsampler (j_compress_ptr cinfo)
-{
-  my_downsample_ptr downsample;
-  int ci;
-  jpeg_component_info * compptr;
-  boolean smoothok = TRUE;
-
-  downsample = (my_downsample_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_downsampler));
-  cinfo->downsample = (struct jpeg_downsampler *) downsample;
-  downsample->pub.start_pass = start_pass_downsample;
-  downsample->pub.downsample = sep_downsample;
-  downsample->pub.need_context_rows = FALSE;
-
-  if (cinfo->CCIR601_sampling)
-    ERREXIT(cinfo, JERR_CCIR601_NOTIMPL);
-
-  /* Verify we can handle the sampling factors, and set up method pointers */
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    if (compptr->h_samp_factor == cinfo->max_h_samp_factor &&
-	compptr->v_samp_factor == cinfo->max_v_samp_factor) {
-#ifdef INPUT_SMOOTHING_SUPPORTED
-      if (cinfo->smoothing_factor) {
-	downsample->methods[ci] = fullsize_smooth_downsample;
-	downsample->pub.need_context_rows = TRUE;
-      } else
-#endif
-	downsample->methods[ci] = fullsize_downsample;
-    } else if (compptr->h_samp_factor * 2 == cinfo->max_h_samp_factor &&
-	       compptr->v_samp_factor == cinfo->max_v_samp_factor) {
-      smoothok = FALSE;
-      downsample->methods[ci] = h2v1_downsample;
-    } else if (compptr->h_samp_factor * 2 == cinfo->max_h_samp_factor &&
-	       compptr->v_samp_factor * 2 == cinfo->max_v_samp_factor) {
-#ifdef INPUT_SMOOTHING_SUPPORTED
-      if (cinfo->smoothing_factor) {
-	downsample->methods[ci] = h2v2_smooth_downsample;
-	downsample->pub.need_context_rows = TRUE;
-      } else
-#endif
-	downsample->methods[ci] = h2v2_downsample;
-    } else if ((cinfo->max_h_samp_factor % compptr->h_samp_factor) == 0 &&
-	       (cinfo->max_v_samp_factor % compptr->v_samp_factor) == 0) {
-      smoothok = FALSE;
-      downsample->methods[ci] = int_downsample;
-    } else
-      ERREXIT(cinfo, JERR_FRACT_SAMPLE_NOTIMPL);
-  }
-
-#ifdef INPUT_SMOOTHING_SUPPORTED
-  if (cinfo->smoothing_factor && !smoothok)
-    TRACEMS(cinfo, 0, JTRC_SMOOTH_NOTIMPL);
-#endif
-}
diff --git a/src/3rdparty/libjpeg/jctrans.c b/src/3rdparty/libjpeg/jctrans.c
deleted file mode 100644
index c84e01b11..000000000
--- a/src/3rdparty/libjpeg/jctrans.c
+++ /dev/null
@@ -1,388 +0,0 @@
-/*
- * jctrans.c
- *
- * Copyright (C) 1995-1998, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains library routines for transcoding compression,
- * that is, writing raw DCT coefficient arrays to an output JPEG file.
- * The routines in jcapimin.c will also be needed by a transcoder.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/* Forward declarations */
-LOCAL(void) transencode_master_selection
-	JPP((j_compress_ptr cinfo, jvirt_barray_ptr * coef_arrays));
-LOCAL(void) transencode_coef_controller
-	JPP((j_compress_ptr cinfo, jvirt_barray_ptr * coef_arrays));
-
-
-/*
- * Compression initialization for writing raw-coefficient data.
- * Before calling this, all parameters and a data destination must be set up.
- * Call jpeg_finish_compress() to actually write the data.
- *
- * The number of passed virtual arrays must match cinfo->num_components.
- * Note that the virtual arrays need not be filled or even realized at
- * the time write_coefficients is called; indeed, if the virtual arrays
- * were requested from this compression object's memory manager, they
- * typically will be realized during this routine and filled afterwards.
- */
-
-GLOBAL(void)
-jpeg_write_coefficients (j_compress_ptr cinfo, jvirt_barray_ptr * coef_arrays)
-{
-  if (cinfo->global_state != CSTATE_START)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-  /* Mark all tables to be written */
-  jpeg_suppress_tables(cinfo, FALSE);
-  /* (Re)initialize error mgr and destination modules */
-  (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo);
-  (*cinfo->dest->init_destination) (cinfo);
-  /* Perform master selection of active modules */
-  transencode_master_selection(cinfo, coef_arrays);
-  /* Wait for jpeg_finish_compress() call */
-  cinfo->next_scanline = 0;	/* so jpeg_write_marker works */
-  cinfo->global_state = CSTATE_WRCOEFS;
-}
-
-
-/*
- * Initialize the compression object with default parameters,
- * then copy from the source object all parameters needed for lossless
- * transcoding.  Parameters that can be varied without loss (such as
- * scan script and Huffman optimization) are left in their default states.
- */
-
-GLOBAL(void)
-jpeg_copy_critical_parameters (j_decompress_ptr srcinfo,
-			       j_compress_ptr dstinfo)
-{
-  JTQUANT_TBL ** qtblptr;
-  jpeg_component_info *incomp, *outcomp;
-  JTQUANT_TBL *c_quant, *slot_quant;
-  int tblno, ci, coefi;
-
-  /* Safety check to ensure start_compress not called yet. */
-  if (dstinfo->global_state != CSTATE_START)
-    ERREXIT1(dstinfo, JERR_BAD_STATE, dstinfo->global_state);
-  /* Copy fundamental image dimensions */
-  dstinfo->image_width = srcinfo->image_width;
-  dstinfo->image_height = srcinfo->image_height;
-  dstinfo->input_components = srcinfo->num_components;
-  dstinfo->in_color_space = srcinfo->jpeg_color_space;
-  /* Initialize all parameters to default values */
-  jpeg_set_defaults(dstinfo);
-  /* jpeg_set_defaults may choose wrong colorspace, eg YCbCr if input is RGB.
-   * Fix it to get the right header markers for the image colorspace.
-   */
-  jpeg_set_colorspace(dstinfo, srcinfo->jpeg_color_space);
-  dstinfo->data_precision = srcinfo->data_precision;
-  dstinfo->CCIR601_sampling = srcinfo->CCIR601_sampling;
-  /* Copy the source's quantization tables. */
-  for (tblno = 0; tblno < NUM_QUANT_TBLS; tblno++) {
-    if (srcinfo->quant_tbl_ptrs[tblno] != NULL) {
-      qtblptr = & dstinfo->quant_tbl_ptrs[tblno];
-      if (*qtblptr == NULL)
-	*qtblptr = jpeg_alloc_quant_table((j_common_ptr) dstinfo);
-      MEMCOPY((*qtblptr)->quantval,
-	      srcinfo->quant_tbl_ptrs[tblno]->quantval,
-	      SIZEOF((*qtblptr)->quantval));
-      (*qtblptr)->sent_table = FALSE;
-    }
-  }
-  /* Copy the source's per-component info.
-   * Note we assume jpeg_set_defaults has allocated the dest comp_info array.
-   */
-  dstinfo->num_components = srcinfo->num_components;
-  if (dstinfo->num_components < 1 || dstinfo->num_components > MAX_COMPONENTS)
-    ERREXIT2(dstinfo, JERR_COMPONENT_COUNT, dstinfo->num_components,
-	     MAX_COMPONENTS);
-  for (ci = 0, incomp = srcinfo->comp_info, outcomp = dstinfo->comp_info;
-       ci < dstinfo->num_components; ci++, incomp++, outcomp++) {
-    outcomp->component_id = incomp->component_id;
-    outcomp->h_samp_factor = incomp->h_samp_factor;
-    outcomp->v_samp_factor = incomp->v_samp_factor;
-    outcomp->quant_tbl_no = incomp->quant_tbl_no;
-    /* Make sure saved quantization table for component matches the qtable
-     * slot.  If not, the input file re-used this qtable slot.
-     * IJG encoder currently cannot duplicate this.
-     */
-    tblno = outcomp->quant_tbl_no;
-    if (tblno < 0 || tblno >= NUM_QUANT_TBLS ||
-	srcinfo->quant_tbl_ptrs[tblno] == NULL)
-      ERREXIT1(dstinfo, JERR_NO_QUANT_TABLE, tblno);
-    slot_quant = srcinfo->quant_tbl_ptrs[tblno];
-    c_quant = incomp->quant_table;
-    if (c_quant != NULL) {
-      for (coefi = 0; coefi < DCTSIZE2; coefi++) {
-	if (c_quant->quantval[coefi] != slot_quant->quantval[coefi])
-	  ERREXIT1(dstinfo, JERR_MISMATCHED_QUANT_TABLE, tblno);
-      }
-    }
-    /* Note: we do not copy the source's Huffman table assignments;
-     * instead we rely on jpeg_set_colorspace to have made a suitable choice.
-     */
-  }
-  /* Also copy JFIF version and resolution information, if available.
-   * Strictly speaking this isn't "critical" info, but it's nearly
-   * always appropriate to copy it if available.  In particular,
-   * if the application chooses to copy JFIF 1.02 extension markers from
-   * the source file, we need to copy the version to make sure we don't
-   * emit a file that has 1.02 extensions but a claimed version of 1.01.
-   * We will *not*, however, copy version info from mislabeled "2.01" files.
-   */
-  if (srcinfo->saw_JFIF_marker) {
-    if (srcinfo->JFIF_major_version == 1) {
-      dstinfo->JFIF_major_version = srcinfo->JFIF_major_version;
-      dstinfo->JFIF_minor_version = srcinfo->JFIF_minor_version;
-    }
-    dstinfo->density_unit = srcinfo->density_unit;
-    dstinfo->X_density = srcinfo->X_density;
-    dstinfo->Y_density = srcinfo->Y_density;
-  }
-}
-
-
-/*
- * Master selection of compression modules for transcoding.
- * This substitutes for jcinit.c's initialization of the full compressor.
- */
-
-LOCAL(void)
-transencode_master_selection (j_compress_ptr cinfo,
-			      jvirt_barray_ptr * coef_arrays)
-{
-  /* Although we don't actually use input_components for transcoding,
-   * jcmaster.c's initial_setup will complain if input_components is 0.
-   */
-  cinfo->input_components = 1;
-  /* Initialize master control (includes parameter checking/processing) */
-  jinit_c_master_control(cinfo, TRUE /* transcode only */);
-
-  /* Entropy encoding: either Huffman or arithmetic coding. */
-  if (cinfo->arith_code) {
-    ERREXIT(cinfo, JERR_ARITH_NOTIMPL);
-  } else {
-    if (cinfo->progressive_mode) {
-#ifdef C_PROGRESSIVE_SUPPORTED
-      jinit_phuff_encoder(cinfo);
-#else
-      ERREXIT(cinfo, JERR_NOT_COMPILED);
-#endif
-    } else
-      jinit_huff_encoder(cinfo);
-  }
-
-  /* We need a special coefficient buffer controller. */
-  transencode_coef_controller(cinfo, coef_arrays);
-
-  jinit_marker_writer(cinfo);
-
-  /* We can now tell the memory manager to allocate virtual arrays. */
-  (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo);
-
-  /* Write the datastream header (SOI, JFIF) immediately.
-   * Frame and scan headers are postponed till later.
-   * This lets application insert special markers after the SOI.
-   */
-  (*cinfo->marker->write_file_header) (cinfo);
-}
-
-
-/*
- * The rest of this file is a special implementation of the coefficient
- * buffer controller.  This is similar to jccoefct.c, but it handles only
- * output from presupplied virtual arrays.  Furthermore, we generate any
- * dummy padding blocks on-the-fly rather than expecting them to be present
- * in the arrays.
- */
-
-/* Private buffer controller object */
-
-typedef struct {
-  struct jpeg_c_coef_controller pub; /* public fields */
-
-  JDIMENSION iMCU_row_num;	/* iMCU row # within image */
-  JDIMENSION mcu_ctr;		/* counts MCUs processed in current row */
-  int MCU_vert_offset;		/* counts MCU rows within iMCU row */
-  int MCU_rows_per_iMCU_row;	/* number of such rows needed */
-
-  /* Virtual block array for each component. */
-  jvirt_barray_ptr * whole_image;
-
-  /* Workspace for constructing dummy blocks at right/bottom edges. */
-  JBLOCKROW dummy_buffer[C_MAX_BLOCKS_IN_MCU];
-} my_coef_controller;
-
-typedef my_coef_controller * my_coef_ptr;
-
-
-LOCAL(void)
-start_iMCU_row (j_compress_ptr cinfo)
-/* Reset within-iMCU-row counters for a new row */
-{
-  my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-
-  /* In an interleaved scan, an MCU row is the same as an iMCU row.
-   * In a noninterleaved scan, an iMCU row has v_samp_factor MCU rows.
-   * But at the bottom of the image, process only what's left.
-   */
-  if (cinfo->comps_in_scan > 1) {
-    coef->MCU_rows_per_iMCU_row = 1;
-  } else {
-    if (coef->iMCU_row_num < (cinfo->total_iMCU_rows-1))
-      coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->v_samp_factor;
-    else
-      coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->last_row_height;
-  }
-
-  coef->mcu_ctr = 0;
-  coef->MCU_vert_offset = 0;
-}
-
-
-/*
- * Initialize for a processing pass.
- */
-
-METHODDEF(void)
-start_pass_coef (j_compress_ptr cinfo, J_BUF_MODE pass_mode)
-{
-  my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-
-  if (pass_mode != JBUF_CRANK_DEST)
-    ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-
-  coef->iMCU_row_num = 0;
-  start_iMCU_row(cinfo);
-}
-
-
-/*
- * Process some data.
- * We process the equivalent of one fully interleaved MCU row ("iMCU" row)
- * per call, ie, v_samp_factor block rows for each component in the scan.
- * The data is obtained from the virtual arrays and fed to the entropy coder.
- * Returns TRUE if the iMCU row is completed, FALSE if suspended.
- *
- * NB: input_buf is ignored; it is likely to be a NULL pointer.
- */
-
-METHODDEF(boolean)
-compress_output (j_compress_ptr cinfo, JSAMPIMAGE input_buf)
-{
-  my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-  JDIMENSION MCU_col_num;	/* index of current MCU within row */
-  JDIMENSION last_MCU_col = cinfo->MCUs_per_row - 1;
-  JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1;
-  int blkn, ci, xindex, yindex, yoffset, blockcnt;
-  JDIMENSION start_col;
-  JBLOCKARRAY buffer[MAX_COMPS_IN_SCAN];
-  JBLOCKROW MCU_buffer[C_MAX_BLOCKS_IN_MCU];
-  JBLOCKROW buffer_ptr;
-  jpeg_component_info *compptr;
-
-  /* Align the virtual buffers for the components used in this scan. */
-  for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-    compptr = cinfo->cur_comp_info[ci];
-    buffer[ci] = (*cinfo->mem->access_virt_barray)
-      ((j_common_ptr) cinfo, coef->whole_image[compptr->component_index],
-       coef->iMCU_row_num * compptr->v_samp_factor,
-       (JDIMENSION) compptr->v_samp_factor, FALSE);
-  }
-
-  /* Loop to process one whole iMCU row */
-  for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row;
-       yoffset++) {
-    for (MCU_col_num = coef->mcu_ctr; MCU_col_num < cinfo->MCUs_per_row;
-	 MCU_col_num++) {
-      /* Construct list of pointers to DCT blocks belonging to this MCU */
-      blkn = 0;			/* index of current DCT block within MCU */
-      for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-	compptr = cinfo->cur_comp_info[ci];
-	start_col = MCU_col_num * compptr->MCU_width;
-	blockcnt = (MCU_col_num < last_MCU_col) ? compptr->MCU_width
-						: compptr->last_col_width;
-	for (yindex = 0; yindex < compptr->MCU_height; yindex++) {
-	  if (coef->iMCU_row_num < last_iMCU_row ||
-	      yindex+yoffset < compptr->last_row_height) {
-	    /* Fill in pointers to real blocks in this row */
-	    buffer_ptr = buffer[ci][yindex+yoffset] + start_col;
-	    for (xindex = 0; xindex < blockcnt; xindex++)
-	      MCU_buffer[blkn++] = buffer_ptr++;
-	  } else {
-	    /* At bottom of image, need a whole row of dummy blocks */
-	    xindex = 0;
-	  }
-	  /* Fill in any dummy blocks needed in this row.
-	   * Dummy blocks are filled in the same way as in jccoefct.c:
-	   * all zeroes in the AC entries, DC entries equal to previous
-	   * block's DC value.  The init routine has already zeroed the
-	   * AC entries, so we need only set the DC entries correctly.
-	   */
-	  for (; xindex < compptr->MCU_width; xindex++) {
-	    MCU_buffer[blkn] = coef->dummy_buffer[blkn];
-	    MCU_buffer[blkn][0][0] = MCU_buffer[blkn-1][0][0];
-	    blkn++;
-	  }
-	}
-      }
-      /* Try to write the MCU. */
-      if (! (*cinfo->entropy->encode_mcu) (cinfo, MCU_buffer)) {
-	/* Suspension forced; update state counters and exit */
-	coef->MCU_vert_offset = yoffset;
-	coef->mcu_ctr = MCU_col_num;
-	return FALSE;
-      }
-    }
-    /* Completed an MCU row, but perhaps not an iMCU row */
-    coef->mcu_ctr = 0;
-  }
-  /* Completed the iMCU row, advance counters for next one */
-  coef->iMCU_row_num++;
-  start_iMCU_row(cinfo);
-  return TRUE;
-}
-
-
-/*
- * Initialize coefficient buffer controller.
- *
- * Each passed coefficient array must be the right size for that
- * coefficient: width_in_blocks wide and height_in_blocks high,
- * with unitheight at least v_samp_factor.
- */
-
-LOCAL(void)
-transencode_coef_controller (j_compress_ptr cinfo,
-			     jvirt_barray_ptr * coef_arrays)
-{
-  my_coef_ptr coef;
-  JBLOCKROW buffer;
-  int i;
-
-  coef = (my_coef_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_coef_controller));
-  cinfo->coef = (struct jpeg_c_coef_controller *) coef;
-  coef->pub.start_pass = start_pass_coef;
-  coef->pub.compress_data = compress_output;
-
-  /* Save pointer to virtual arrays */
-  coef->whole_image = coef_arrays;
-
-  /* Allocate and pre-zero space for dummy DCT blocks. */
-  buffer = (JBLOCKROW)
-    (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK));
-  jzero_far((void FAR *) buffer, C_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK));
-  for (i = 0; i < C_MAX_BLOCKS_IN_MCU; i++) {
-    coef->dummy_buffer[i] = buffer + i;
-  }
-}
diff --git a/src/3rdparty/libjpeg/jdapimin.c b/src/3rdparty/libjpeg/jdapimin.c
deleted file mode 100644
index 409903a1b..000000000
--- a/src/3rdparty/libjpeg/jdapimin.c
+++ /dev/null
@@ -1,395 +0,0 @@
-/*
- * jdapimin.c
- *
- * Copyright (C) 1994-1998, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains application interface code for the decompression half
- * of the JPEG library.  These are the "minimum" API routines that may be
- * needed in either the normal full-decompression case or the
- * transcoding-only case.
- *
- * Most of the routines intended to be called directly by an application
- * are in this file or in jdapistd.c.  But also see jcomapi.c for routines
- * shared by compression and decompression, and jdtrans.c for the transcoding
- * case.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/*
- * Initialization of a JPEG decompression object.
- * The error manager must already be set up (in case memory manager fails).
- */
-
-GLOBAL(void)
-jpeg_CreateDecompress (j_decompress_ptr cinfo, int version, size_t structsize)
-{
-  int i;
-
-  /* Guard against version mismatches between library and caller. */
-  cinfo->mem = NULL;		/* so jpeg_destroy knows mem mgr not called */
-  if (version != JPEG_LIB_VERSION)
-    ERREXIT2(cinfo, JERR_BAD_LIB_VERSION, JPEG_LIB_VERSION, version);
-  if (structsize != SIZEOF(struct jpeg_decompress_struct))
-    ERREXIT2(cinfo, JERR_BAD_STRUCT_SIZE, 
-	     (int) SIZEOF(struct jpeg_decompress_struct), (int) structsize);
-
-  /* For debugging purposes, we zero the whole master structure.
-   * But the application has already set the err pointer, and may have set
-   * client_data, so we have to save and restore those fields.
-   * Note: if application hasn't set client_data, tools like Purify may
-   * complain here.
-   */
-  {
-    struct jpeg_error_mgr * err = cinfo->err;
-    void * client_data = cinfo->client_data; /* ignore Purify complaint here */
-    MEMZERO(cinfo, SIZEOF(struct jpeg_decompress_struct));
-    cinfo->err = err;
-    cinfo->client_data = client_data;
-  }
-  cinfo->is_decompressor = TRUE;
-
-  /* Initialize a memory manager instance for this object */
-  jinit_memory_mgr((j_common_ptr) cinfo);
-
-  /* Zero out pointers to permanent structures. */
-  cinfo->progress = NULL;
-  cinfo->src = NULL;
-
-  for (i = 0; i < NUM_QUANT_TBLS; i++)
-    cinfo->quant_tbl_ptrs[i] = NULL;
-
-  for (i = 0; i < NUM_HUFF_TBLS; i++) {
-    cinfo->dc_huff_tbl_ptrs[i] = NULL;
-    cinfo->ac_huff_tbl_ptrs[i] = NULL;
-  }
-
-  /* Initialize marker processor so application can override methods
-   * for COM, APPn markers before calling jpeg_read_header.
-   */
-  cinfo->marker_list = NULL;
-  jinit_marker_reader(cinfo);
-
-  /* And initialize the overall input controller. */
-  jinit_input_controller(cinfo);
-
-  /* OK, I'm ready */
-  cinfo->global_state = DSTATE_START;
-}
-
-
-/*
- * Destruction of a JPEG decompression object
- */
-
-GLOBAL(void)
-jpeg_destroy_decompress (j_decompress_ptr cinfo)
-{
-  jpeg_destroy((j_common_ptr) cinfo); /* use common routine */
-}
-
-
-/*
- * Abort processing of a JPEG decompression operation,
- * but don't destroy the object itself.
- */
-
-GLOBAL(void)
-jpeg_abort_decompress (j_decompress_ptr cinfo)
-{
-  jpeg_abort((j_common_ptr) cinfo); /* use common routine */
-}
-
-
-/*
- * Set default decompression parameters.
- */
-
-LOCAL(void)
-default_decompress_parms (j_decompress_ptr cinfo)
-{
-  /* Guess the input colorspace, and set output colorspace accordingly. */
-  /* (Wish JPEG committee had provided a real way to specify this...) */
-  /* Note application may override our guesses. */
-  switch (cinfo->num_components) {
-  case 1:
-    cinfo->jpeg_color_space = JCS_GRAYSCALE;
-    cinfo->out_color_space = JCS_GRAYSCALE;
-    break;
-    
-  case 3:
-    if (cinfo->saw_JFIF_marker) {
-      cinfo->jpeg_color_space = JCS_YCbCr; /* JFIF implies YCbCr */
-    } else if (cinfo->saw_Adobe_marker) {
-      switch (cinfo->Adobe_transform) {
-      case 0:
-	cinfo->jpeg_color_space = JCS_RGB;
-	break;
-      case 1:
-	cinfo->jpeg_color_space = JCS_YCbCr;
-	break;
-      default:
-	WARNMS1(cinfo, JWRN_ADOBE_XFORM, cinfo->Adobe_transform);
-	cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */
-	break;
-      }
-    } else {
-      /* Saw no special markers, try to guess from the component IDs */
-      int cid0 = cinfo->comp_info[0].component_id;
-      int cid1 = cinfo->comp_info[1].component_id;
-      int cid2 = cinfo->comp_info[2].component_id;
-
-      if (cid0 == 1 && cid1 == 2 && cid2 == 3)
-	cinfo->jpeg_color_space = JCS_YCbCr; /* assume JFIF w/out marker */
-      else if (cid0 == 82 && cid1 == 71 && cid2 == 66)
-	cinfo->jpeg_color_space = JCS_RGB; /* ASCII 'R', 'G', 'B' */
-      else {
-	TRACEMS3(cinfo, 1, JTRC_UNKNOWN_IDS, cid0, cid1, cid2);
-	cinfo->jpeg_color_space = JCS_YCbCr; /* assume it's YCbCr */
-      }
-    }
-    /* Always guess RGB is proper output colorspace. */
-    cinfo->out_color_space = JCS_RGB;
-    break;
-    
-  case 4:
-    if (cinfo->saw_Adobe_marker) {
-      switch (cinfo->Adobe_transform) {
-      case 0:
-	cinfo->jpeg_color_space = JCS_CMYK;
-	break;
-      case 2:
-	cinfo->jpeg_color_space = JCS_YCCK;
-	break;
-      default:
-	WARNMS1(cinfo, JWRN_ADOBE_XFORM, cinfo->Adobe_transform);
-	cinfo->jpeg_color_space = JCS_YCCK; /* assume it's YCCK */
-	break;
-      }
-    } else {
-      /* No special markers, assume straight CMYK. */
-      cinfo->jpeg_color_space = JCS_CMYK;
-    }
-    cinfo->out_color_space = JCS_CMYK;
-    break;
-    
-  default:
-    cinfo->jpeg_color_space = JCS_UNKNOWN;
-    cinfo->out_color_space = JCS_UNKNOWN;
-    break;
-  }
-
-  /* Set defaults for other decompression parameters. */
-  cinfo->scale_num = 1;		/* 1:1 scaling */
-  cinfo->scale_denom = 1;
-  cinfo->output_gamma = 1.0;
-  cinfo->buffered_image = FALSE;
-  cinfo->raw_data_out = FALSE;
-  cinfo->dct_method = JDCT_DEFAULT;
-  cinfo->do_fancy_upsampling = TRUE;
-  cinfo->do_block_smoothing = TRUE;
-  cinfo->quantize_colors = FALSE;
-  /* We set these in case application only sets quantize_colors. */
-  cinfo->dither_mode = JDITHER_FS;
-#ifdef TQUANT_2PASS_SUPPORTED
-  cinfo->two_pass_quantize = TRUE;
-#else
-  cinfo->two_pass_quantize = FALSE;
-#endif
-  cinfo->desired_number_of_colors = 256;
-  cinfo->colormap = NULL;
-  /* Initialize for no mode change in buffered-image mode. */
-  cinfo->enable_1pass_quant = FALSE;
-  cinfo->enable_external_quant = FALSE;
-  cinfo->enable_2pass_quant = FALSE;
-}
-
-
-/*
- * Decompression startup: read start of JPEG datastream to see what's there.
- * Need only initialize JPEG object and supply a data source before calling.
- *
- * This routine will read as far as the first SOS marker (ie, actual start of
- * compressed data), and will save all tables and parameters in the JPEG
- * object.  It will also initialize the decompression parameters to default
- * values, and finally return JPEG_HEADER_OK.  On return, the application may
- * adjust the decompression parameters and then call jpeg_start_decompress.
- * (Or, if the application only wanted to determine the image parameters,
- * the data need not be decompressed.  In that case, call jpeg_abort or
- * jpeg_destroy to release any temporary space.)
- * If an abbreviated (tables only) datastream is presented, the routine will
- * return JPEG_HEADER_TABLES_ONLY upon reaching EOI.  The application may then
- * re-use the JPEG object to read the abbreviated image datastream(s).
- * It is unnecessary (but OK) to call jpeg_abort in this case.
- * The JPEG_SUSPENDED return code only occurs if the data source module
- * requests suspension of the decompressor.  In this case the application
- * should load more source data and then re-call jpeg_read_header to resume
- * processing.
- * If a non-suspending data source is used and require_image is TRUE, then the
- * return code need not be inspected since only JPEG_HEADER_OK is possible.
- *
- * This routine is now just a front end to jpeg_consume_input, with some
- * extra error checking.
- */
-
-GLOBAL(int)
-jpeg_read_header (j_decompress_ptr cinfo, boolean require_image)
-{
-  int retcode;
-
-  if (cinfo->global_state != DSTATE_START &&
-      cinfo->global_state != DSTATE_INHEADER)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-
-  retcode = jpeg_consume_input(cinfo);
-
-  switch (retcode) {
-  case JPEG_REACHED_SOS:
-    retcode = JPEG_HEADER_OK;
-    break;
-  case JPEG_REACHED_EOI:
-    if (require_image)		/* Complain if application wanted an image */
-      ERREXIT(cinfo, JERR_NO_IMAGE);
-    /* Reset to start state; it would be safer to require the application to
-     * call jpeg_abort, but we can't change it now for compatibility reasons.
-     * A side effect is to free any temporary memory (there shouldn't be any).
-     */
-    jpeg_abort((j_common_ptr) cinfo); /* sets state = DSTATE_START */
-    retcode = JPEG_HEADER_TABLES_ONLY;
-    break;
-  case JPEG_SUSPENDED:
-    /* no work */
-    break;
-  }
-
-  return retcode;
-}
-
-
-/*
- * Consume data in advance of what the decompressor requires.
- * This can be called at any time once the decompressor object has
- * been created and a data source has been set up.
- *
- * This routine is essentially a state machine that handles a couple
- * of critical state-transition actions, namely initial setup and
- * transition from header scanning to ready-for-start_decompress.
- * All the actual input is done via the input controller's consume_input
- * method.
- */
-
-GLOBAL(int)
-jpeg_consume_input (j_decompress_ptr cinfo)
-{
-  int retcode = JPEG_SUSPENDED;
-
-  /* NB: every possible DSTATE value should be listed in this switch */
-  switch (cinfo->global_state) {
-  case DSTATE_START:
-    /* Start-of-datastream actions: reset appropriate modules */
-    (*cinfo->inputctl->reset_input_controller) (cinfo);
-    /* Initialize application's data source module */
-    (*cinfo->src->init_source) (cinfo);
-    cinfo->global_state = DSTATE_INHEADER;
-    /*FALLTHROUGH*/
-  case DSTATE_INHEADER:
-    retcode = (*cinfo->inputctl->consume_input) (cinfo);
-    if (retcode == JPEG_REACHED_SOS) { /* Found SOS, prepare to decompress */
-      /* Set up default parameters based on header data */
-      default_decompress_parms(cinfo);
-      /* Set global state: ready for start_decompress */
-      cinfo->global_state = DSTATE_READY;
-    }
-    break;
-  case DSTATE_READY:
-    /* Can't advance past first SOS until start_decompress is called */
-    retcode = JPEG_REACHED_SOS;
-    break;
-  case DSTATE_PRELOAD:
-  case DSTATE_PRESCAN:
-  case DSTATE_SCANNING:
-  case DSTATE_RAW_OK:
-  case DSTATE_BUFIMAGE:
-  case DSTATE_BUFPOST:
-  case DSTATE_STOPPING:
-    retcode = (*cinfo->inputctl->consume_input) (cinfo);
-    break;
-  default:
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-  }
-  return retcode;
-}
-
-
-/*
- * Have we finished reading the input file?
- */
-
-GLOBAL(boolean)
-jpeg_input_complete (j_decompress_ptr cinfo)
-{
-  /* Check for valid jpeg object */
-  if (cinfo->global_state < DSTATE_START ||
-      cinfo->global_state > DSTATE_STOPPING)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-  return cinfo->inputctl->eoi_reached;
-}
-
-
-/*
- * Is there more than one scan?
- */
-
-GLOBAL(boolean)
-jpeg_has_multiple_scans (j_decompress_ptr cinfo)
-{
-  /* Only valid after jpeg_read_header completes */
-  if (cinfo->global_state < DSTATE_READY ||
-      cinfo->global_state > DSTATE_STOPPING)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-  return cinfo->inputctl->has_multiple_scans;
-}
-
-
-/*
- * Finish JPEG decompression.
- *
- * This will normally just verify the file trailer and release temp storage.
- *
- * Returns FALSE if suspended.  The return value need be inspected only if
- * a suspending data source is used.
- */
-
-GLOBAL(boolean)
-jpeg_finish_decompress (j_decompress_ptr cinfo)
-{
-  if ((cinfo->global_state == DSTATE_SCANNING ||
-       cinfo->global_state == DSTATE_RAW_OK) && ! cinfo->buffered_image) {
-    /* Terminate final pass of non-buffered mode */
-    if (cinfo->output_scanline < cinfo->output_height)
-      ERREXIT(cinfo, JERR_TOO_LITTLE_DATA);
-    (*cinfo->master->finish_output_pass) (cinfo);
-    cinfo->global_state = DSTATE_STOPPING;
-  } else if (cinfo->global_state == DSTATE_BUFIMAGE) {
-    /* Finishing after a buffered-image operation */
-    cinfo->global_state = DSTATE_STOPPING;
-  } else if (cinfo->global_state != DSTATE_STOPPING) {
-    /* STOPPING = repeat call after a suspension, anything else is error */
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-  }
-  /* Read until EOI */
-  while (! cinfo->inputctl->eoi_reached) {
-    if ((*cinfo->inputctl->consume_input) (cinfo) == JPEG_SUSPENDED)
-      return FALSE;		/* Suspend, come back later */
-  }
-  /* Do final cleanup */
-  (*cinfo->src->term_source) (cinfo);
-  /* We can use jpeg_abort to release memory and reset global_state */
-  jpeg_abort((j_common_ptr) cinfo);
-  return TRUE;
-}
diff --git a/src/3rdparty/libjpeg/jdapistd.c b/src/3rdparty/libjpeg/jdapistd.c
deleted file mode 100644
index d23a985e8..000000000
--- a/src/3rdparty/libjpeg/jdapistd.c
+++ /dev/null
@@ -1,275 +0,0 @@
-/*
- * jdapistd.c
- *
- * Copyright (C) 1994-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains application interface code for the decompression half
- * of the JPEG library.  These are the "standard" API routines that are
- * used in the normal full-decompression case.  They are not used by a
- * transcoding-only application.  Note that if an application links in
- * jpeg_start_decompress, it will end up linking in the entire decompressor.
- * We thus must separate this file from jdapimin.c to avoid linking the
- * whole decompression library into a transcoder.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/* Forward declarations */
-LOCAL(boolean) output_pass_setup JPP((j_decompress_ptr cinfo));
-
-
-/*
- * Decompression initialization.
- * jpeg_read_header must be completed before calling this.
- *
- * If a multipass operating mode was selected, this will do all but the
- * last pass, and thus may take a great deal of time.
- *
- * Returns FALSE if suspended.  The return value need be inspected only if
- * a suspending data source is used.
- */
-
-GLOBAL(boolean)
-jpeg_start_decompress (j_decompress_ptr cinfo)
-{
-  if (cinfo->global_state == DSTATE_READY) {
-    /* First call: initialize master control, select active modules */
-    jinit_master_decompress(cinfo);
-    if (cinfo->buffered_image) {
-      /* No more work here; expecting jpeg_start_output next */
-      cinfo->global_state = DSTATE_BUFIMAGE;
-      return TRUE;
-    }
-    cinfo->global_state = DSTATE_PRELOAD;
-  }
-  if (cinfo->global_state == DSTATE_PRELOAD) {
-    /* If file has multiple scans, absorb them all into the coef buffer */
-    if (cinfo->inputctl->has_multiple_scans) {
-#ifdef D_MULTISCAN_FILES_SUPPORTED
-      for (;;) {
-	int retcode;
-	/* Call progress monitor hook if present */
-	if (cinfo->progress != NULL)
-	  (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo);
-	/* Absorb some more input */
-	retcode = (*cinfo->inputctl->consume_input) (cinfo);
-	if (retcode == JPEG_SUSPENDED)
-	  return FALSE;
-	if (retcode == JPEG_REACHED_EOI)
-	  break;
-	/* Advance progress counter if appropriate */
-	if (cinfo->progress != NULL &&
-	    (retcode == JPEG_ROW_COMPLETED || retcode == JPEG_REACHED_SOS)) {
-	  if (++cinfo->progress->pass_counter >= cinfo->progress->pass_limit) {
-	    /* jdmaster underestimated number of scans; ratchet up one scan */
-	    cinfo->progress->pass_limit += (long) cinfo->total_iMCU_rows;
-	  }
-	}
-      }
-#else
-      ERREXIT(cinfo, JERR_NOT_COMPILED);
-#endif /* D_MULTISCAN_FILES_SUPPORTED */
-    }
-    cinfo->output_scan_number = cinfo->input_scan_number;
-  } else if (cinfo->global_state != DSTATE_PRESCAN)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-  /* Perform any dummy output passes, and set up for the final pass */
-  return output_pass_setup(cinfo);
-}
-
-
-/*
- * Set up for an output pass, and perform any dummy pass(es) needed.
- * Common subroutine for jpeg_start_decompress and jpeg_start_output.
- * Entry: global_state = DSTATE_PRESCAN only if previously suspended.
- * Exit: If done, returns TRUE and sets global_state for proper output mode.
- *       If suspended, returns FALSE and sets global_state = DSTATE_PRESCAN.
- */
-
-LOCAL(boolean)
-output_pass_setup (j_decompress_ptr cinfo)
-{
-  if (cinfo->global_state != DSTATE_PRESCAN) {
-    /* First call: do pass setup */
-    (*cinfo->master->prepare_for_output_pass) (cinfo);
-    cinfo->output_scanline = 0;
-    cinfo->global_state = DSTATE_PRESCAN;
-  }
-  /* Loop over any required dummy passes */
-  while (cinfo->master->is_dummy_pass) {
-#ifdef TQUANT_2PASS_SUPPORTED
-    /* Crank through the dummy pass */
-    while (cinfo->output_scanline < cinfo->output_height) {
-      JDIMENSION last_scanline;
-      /* Call progress monitor hook if present */
-      if (cinfo->progress != NULL) {
-	cinfo->progress->pass_counter = (long) cinfo->output_scanline;
-	cinfo->progress->pass_limit = (long) cinfo->output_height;
-	(*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo);
-      }
-      /* Process some data */
-      last_scanline = cinfo->output_scanline;
-      (*cinfo->main->process_data) (cinfo, (JSAMPARRAY) NULL,
-				    &cinfo->output_scanline, (JDIMENSION) 0);
-      if (cinfo->output_scanline == last_scanline)
-	return FALSE;		/* No progress made, must suspend */
-    }
-    /* Finish up dummy pass, and set up for another one */
-    (*cinfo->master->finish_output_pass) (cinfo);
-    (*cinfo->master->prepare_for_output_pass) (cinfo);
-    cinfo->output_scanline = 0;
-#else
-    ERREXIT(cinfo, JERR_NOT_COMPILED);
-#endif /* TQUANT_2PASS_SUPPORTED */
-  }
-  /* Ready for application to drive output pass through
-   * jpeg_read_scanlines or jpeg_read_raw_data.
-   */
-  cinfo->global_state = cinfo->raw_data_out ? DSTATE_RAW_OK : DSTATE_SCANNING;
-  return TRUE;
-}
-
-
-/*
- * Read some scanlines of data from the JPEG decompressor.
- *
- * The return value will be the number of lines actually read.
- * This may be less than the number requested in several cases,
- * including bottom of image, data source suspension, and operating
- * modes that emit multiple scanlines at a time.
- *
- * Note: we warn about excess calls to jpeg_read_scanlines() since
- * this likely signals an application programmer error.  However,
- * an oversize buffer (max_lines > scanlines remaining) is not an error.
- */
-
-GLOBAL(JDIMENSION)
-jpeg_read_scanlines (j_decompress_ptr cinfo, JSAMPARRAY scanlines,
-		     JDIMENSION max_lines)
-{
-  JDIMENSION row_ctr;
-
-  if (cinfo->global_state != DSTATE_SCANNING)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-  if (cinfo->output_scanline >= cinfo->output_height) {
-    WARNMS(cinfo, JWRN_TOO_MUCH_DATA);
-    return 0;
-  }
-
-  /* Call progress monitor hook if present */
-  if (cinfo->progress != NULL) {
-    cinfo->progress->pass_counter = (long) cinfo->output_scanline;
-    cinfo->progress->pass_limit = (long) cinfo->output_height;
-    (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo);
-  }
-
-  /* Process some data */
-  row_ctr = 0;
-  (*cinfo->main->process_data) (cinfo, scanlines, &row_ctr, max_lines);
-  cinfo->output_scanline += row_ctr;
-  return row_ctr;
-}
-
-
-/*
- * Alternate entry point to read raw data.
- * Processes exactly one iMCU row per call, unless suspended.
- */
-
-GLOBAL(JDIMENSION)
-jpeg_read_raw_data (j_decompress_ptr cinfo, JSAMPIMAGE data,
-		    JDIMENSION max_lines)
-{
-  JDIMENSION lines_per_iMCU_row;
-
-  if (cinfo->global_state != DSTATE_RAW_OK)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-  if (cinfo->output_scanline >= cinfo->output_height) {
-    WARNMS(cinfo, JWRN_TOO_MUCH_DATA);
-    return 0;
-  }
-
-  /* Call progress monitor hook if present */
-  if (cinfo->progress != NULL) {
-    cinfo->progress->pass_counter = (long) cinfo->output_scanline;
-    cinfo->progress->pass_limit = (long) cinfo->output_height;
-    (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo);
-  }
-
-  /* Verify that at least one iMCU row can be returned. */
-  lines_per_iMCU_row = cinfo->max_v_samp_factor * cinfo->min_DCT_scaled_size;
-  if (max_lines < lines_per_iMCU_row)
-    ERREXIT(cinfo, JERR_BUFFER_SIZE);
-
-  /* Decompress directly into user's buffer. */
-  if (! (*cinfo->coef->decompress_data) (cinfo, data))
-    return 0;			/* suspension forced, can do nothing more */
-
-  /* OK, we processed one iMCU row. */
-  cinfo->output_scanline += lines_per_iMCU_row;
-  return lines_per_iMCU_row;
-}
-
-
-/* Additional entry points for buffered-image mode. */
-
-#ifdef D_MULTISCAN_FILES_SUPPORTED
-
-/*
- * Initialize for an output pass in buffered-image mode.
- */
-
-GLOBAL(boolean)
-jpeg_start_output (j_decompress_ptr cinfo, int scan_number)
-{
-  if (cinfo->global_state != DSTATE_BUFIMAGE &&
-      cinfo->global_state != DSTATE_PRESCAN)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-  /* Limit scan number to valid range */
-  if (scan_number <= 0)
-    scan_number = 1;
-  if (cinfo->inputctl->eoi_reached &&
-      scan_number > cinfo->input_scan_number)
-    scan_number = cinfo->input_scan_number;
-  cinfo->output_scan_number = scan_number;
-  /* Perform any dummy output passes, and set up for the real pass */
-  return output_pass_setup(cinfo);
-}
-
-
-/*
- * Finish up after an output pass in buffered-image mode.
- *
- * Returns FALSE if suspended.  The return value need be inspected only if
- * a suspending data source is used.
- */
-
-GLOBAL(boolean)
-jpeg_finish_output (j_decompress_ptr cinfo)
-{
-  if ((cinfo->global_state == DSTATE_SCANNING ||
-       cinfo->global_state == DSTATE_RAW_OK) && cinfo->buffered_image) {
-    /* Terminate this pass. */
-    /* We do not require the whole pass to have been completed. */
-    (*cinfo->master->finish_output_pass) (cinfo);
-    cinfo->global_state = DSTATE_BUFPOST;
-  } else if (cinfo->global_state != DSTATE_BUFPOST) {
-    /* BUFPOST = repeat call after a suspension, anything else is error */
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-  }
-  /* Read markers looking for SOS or EOI */
-  while (cinfo->input_scan_number <= cinfo->output_scan_number &&
-	 ! cinfo->inputctl->eoi_reached) {
-    if ((*cinfo->inputctl->consume_input) (cinfo) == JPEG_SUSPENDED)
-      return FALSE;		/* Suspend, come back later */
-  }
-  cinfo->global_state = DSTATE_BUFIMAGE;
-  return TRUE;
-}
-
-#endif /* D_MULTISCAN_FILES_SUPPORTED */
diff --git a/src/3rdparty/libjpeg/jdatadst.c b/src/3rdparty/libjpeg/jdatadst.c
deleted file mode 100644
index a8f6fb0e0..000000000
--- a/src/3rdparty/libjpeg/jdatadst.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- * jdatadst.c
- *
- * Copyright (C) 1994-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains compression data destination routines for the case of
- * emitting JPEG data to a file (or any stdio stream).  While these routines
- * are sufficient for most applications, some will want to use a different
- * destination manager.
- * IMPORTANT: we assume that fwrite() will correctly transcribe an array of
- * JOCTETs into 8-bit-wide elements on external storage.  If char is wider
- * than 8 bits on your machine, you may need to do some tweaking.
- */
-
-/* this is not a core library module, so it doesn't define JPEG_INTERNALS */
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jerror.h"
-
-
-/* Expanded data destination object for stdio output */
-
-typedef struct {
-  struct jpeg_destination_mgr pub; /* public fields */
-
-  FILE * outfile;		/* target stream */
-  JOCTET * buffer;		/* start of buffer */
-} my_destination_mgr;
-
-typedef my_destination_mgr * my_dest_ptr;
-
-#define OUTPUT_BUF_SIZE  4096	/* choose an efficiently fwrite'able size */
-
-
-/*
- * Initialize destination --- called by jpeg_start_compress
- * before any data is actually written.
- */
-
-METHODDEF(void)
-init_destination (j_compress_ptr cinfo)
-{
-  my_dest_ptr dest = (my_dest_ptr) cinfo->dest;
-
-  /* Allocate the output buffer --- it will be released when done with image */
-  dest->buffer = (JOCTET *)
-      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				  OUTPUT_BUF_SIZE * SIZEOF(JOCTET));
-
-  dest->pub.next_output_byte = dest->buffer;
-  dest->pub.free_in_buffer = OUTPUT_BUF_SIZE;
-}
-
-
-/*
- * Empty the output buffer --- called whenever buffer fills up.
- *
- * In typical applications, this should write the entire output buffer
- * (ignoring the current state of next_output_byte & free_in_buffer),
- * reset the pointer & count to the start of the buffer, and return TRUE
- * indicating that the buffer has been dumped.
- *
- * In applications that need to be able to suspend compression due to output
- * overrun, a FALSE return indicates that the buffer cannot be emptied now.
- * In this situation, the compressor will return to its caller (possibly with
- * an indication that it has not accepted all the supplied scanlines).  The
- * application should resume compression after it has made more room in the
- * output buffer.  Note that there are substantial restrictions on the use of
- * suspension --- see the documentation.
- *
- * When suspending, the compressor will back up to a convenient restart point
- * (typically the start of the current MCU). next_output_byte & free_in_buffer
- * indicate where the restart point will be if the current call returns FALSE.
- * Data beyond this point will be regenerated after resumption, so do not
- * write it out when emptying the buffer externally.
- */
-
-METHODDEF(boolean)
-empty_output_buffer (j_compress_ptr cinfo)
-{
-  my_dest_ptr dest = (my_dest_ptr) cinfo->dest;
-
-  if (JFWRITE(dest->outfile, dest->buffer, OUTPUT_BUF_SIZE) !=
-      (size_t) OUTPUT_BUF_SIZE)
-    ERREXIT(cinfo, JERR_FILE_WRITE);
-
-  dest->pub.next_output_byte = dest->buffer;
-  dest->pub.free_in_buffer = OUTPUT_BUF_SIZE;
-
-  return TRUE;
-}
-
-
-/*
- * Terminate destination --- called by jpeg_finish_compress
- * after all data has been written.  Usually needs to flush buffer.
- *
- * NB: *not* called by jpeg_abort or jpeg_destroy; surrounding
- * application must deal with any cleanup that should happen even
- * for error exit.
- */
-
-METHODDEF(void)
-term_destination (j_compress_ptr cinfo)
-{
-  my_dest_ptr dest = (my_dest_ptr) cinfo->dest;
-  size_t datacount = OUTPUT_BUF_SIZE - dest->pub.free_in_buffer;
-
-  /* Write any data remaining in the buffer */
-  if (datacount > 0) {
-    if (JFWRITE(dest->outfile, dest->buffer, datacount) != datacount)
-      ERREXIT(cinfo, JERR_FILE_WRITE);
-  }
-  fflush(dest->outfile);
-  /* Make sure we wrote the output file OK */
-  if (ferror(dest->outfile))
-    ERREXIT(cinfo, JERR_FILE_WRITE);
-}
-
-
-/*
- * Prepare for output to a stdio stream.
- * The caller must have already opened the stream, and is responsible
- * for closing it after finishing compression.
- */
-
-GLOBAL(void)
-jpeg_stdio_dest (j_compress_ptr cinfo, FILE * outfile)
-{
-  my_dest_ptr dest;
-
-  /* The destination object is made permanent so that multiple JPEG images
-   * can be written to the same file without re-executing jpeg_stdio_dest.
-   * This makes it dangerous to use this manager and a different destination
-   * manager serially with the same JPEG object, because their private object
-   * sizes may be different.  Caveat programmer.
-   */
-  if (cinfo->dest == NULL) {	/* first time for this JPEG object? */
-    cinfo->dest = (struct jpeg_destination_mgr *)
-      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
-				  SIZEOF(my_destination_mgr));
-  }
-
-  dest = (my_dest_ptr) cinfo->dest;
-  dest->pub.init_destination = init_destination;
-  dest->pub.empty_output_buffer = empty_output_buffer;
-  dest->pub.term_destination = term_destination;
-  dest->outfile = outfile;
-}
diff --git a/src/3rdparty/libjpeg/jdatasrc.c b/src/3rdparty/libjpeg/jdatasrc.c
deleted file mode 100644
index edc752bf5..000000000
--- a/src/3rdparty/libjpeg/jdatasrc.c
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
- * jdatasrc.c
- *
- * Copyright (C) 1994-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains decompression data source routines for the case of
- * reading JPEG data from a file (or any stdio stream).  While these routines
- * are sufficient for most applications, some will want to use a different
- * source manager.
- * IMPORTANT: we assume that fread() will correctly transcribe an array of
- * JOCTETs from 8-bit-wide elements on external storage.  If char is wider
- * than 8 bits on your machine, you may need to do some tweaking.
- */
-
-/* this is not a core library module, so it doesn't define JPEG_INTERNALS */
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jerror.h"
-
-
-/* Expanded data source object for stdio input */
-
-typedef struct {
-  struct jpeg_source_mgr pub;	/* public fields */
-
-  FILE * infile;		/* source stream */
-  JOCTET * buffer;		/* start of buffer */
-  boolean start_of_file;	/* have we gotten any data yet? */
-} my_source_mgr;
-
-typedef my_source_mgr * my_src_ptr;
-
-#define INPUT_BUF_SIZE  4096	/* choose an efficiently fread'able size */
-
-
-/*
- * Initialize source --- called by jpeg_read_header
- * before any data is actually read.
- */
-
-METHODDEF(void)
-init_source (j_decompress_ptr cinfo)
-{
-  my_src_ptr src = (my_src_ptr) cinfo->src;
-
-  /* We reset the empty-input-file flag for each image,
-   * but we don't clear the input buffer.
-   * This is correct behavior for reading a series of images from one source.
-   */
-  src->start_of_file = TRUE;
-}
-
-
-/*
- * Fill the input buffer --- called whenever buffer is emptied.
- *
- * In typical applications, this should read fresh data into the buffer
- * (ignoring the current state of next_input_byte & bytes_in_buffer),
- * reset the pointer & count to the start of the buffer, and return TRUE
- * indicating that the buffer has been reloaded.  It is not necessary to
- * fill the buffer entirely, only to obtain at least one more byte.
- *
- * There is no such thing as an EOF return.  If the end of the file has been
- * reached, the routine has a choice of ERREXIT() or inserting fake data into
- * the buffer.  In most cases, generating a warning message and inserting a
- * fake EOI marker is the best course of action --- this will allow the
- * decompressor to output however much of the image is there.  However,
- * the resulting error message is misleading if the real problem is an empty
- * input file, so we handle that case specially.
- *
- * In applications that need to be able to suspend compression due to input
- * not being available yet, a FALSE return indicates that no more data can be
- * obtained right now, but more may be forthcoming later.  In this situation,
- * the decompressor will return to its caller (with an indication of the
- * number of scanlines it has read, if any).  The application should resume
- * decompression after it has loaded more data into the input buffer.  Note
- * that there are substantial restrictions on the use of suspension --- see
- * the documentation.
- *
- * When suspending, the decompressor will back up to a convenient restart point
- * (typically the start of the current MCU). next_input_byte & bytes_in_buffer
- * indicate where the restart point will be if the current call returns FALSE.
- * Data beyond this point must be rescanned after resumption, so move it to
- * the front of the buffer rather than discarding it.
- */
-
-METHODDEF(boolean)
-fill_input_buffer (j_decompress_ptr cinfo)
-{
-  my_src_ptr src = (my_src_ptr) cinfo->src;
-  size_t nbytes;
-
-  nbytes = JFREAD(src->infile, src->buffer, INPUT_BUF_SIZE);
-
-  if (nbytes <= 0) {
-    if (src->start_of_file)	/* Treat empty input file as fatal error */
-      ERREXIT(cinfo, JERR_INPUT_EMPTY);
-    WARNMS(cinfo, JWRN_JPEG_EOF);
-    /* Insert a fake EOI marker */
-    src->buffer[0] = (JOCTET) 0xFF;
-    src->buffer[1] = (JOCTET) JPEG_EOI;
-    nbytes = 2;
-  }
-
-  src->pub.next_input_byte = src->buffer;
-  src->pub.bytes_in_buffer = nbytes;
-  src->start_of_file = FALSE;
-
-  return TRUE;
-}
-
-
-/*
- * Skip data --- used to skip over a potentially large amount of
- * uninteresting data (such as an APPn marker).
- *
- * Writers of suspendable-input applications must note that skip_input_data
- * is not granted the right to give a suspension return.  If the skip extends
- * beyond the data currently in the buffer, the buffer can be marked empty so
- * that the next read will cause a fill_input_buffer call that can suspend.
- * Arranging for additional bytes to be discarded before reloading the input
- * buffer is the application writer's problem.
- */
-
-METHODDEF(void)
-skip_input_data (j_decompress_ptr cinfo, long num_bytes)
-{
-  my_src_ptr src = (my_src_ptr) cinfo->src;
-
-  /* Just a dumb implementation for now.  Could use fseek() except
-   * it doesn't work on pipes.  Not clear that being smart is worth
-   * any trouble anyway --- large skips are infrequent.
-   */
-  if (num_bytes > 0) {
-    while (num_bytes > (long) src->pub.bytes_in_buffer) {
-      num_bytes -= (long) src->pub.bytes_in_buffer;
-      (void) fill_input_buffer(cinfo);
-      /* note we assume that fill_input_buffer will never return FALSE,
-       * so suspension need not be handled.
-       */
-    }
-    src->pub.next_input_byte += (size_t) num_bytes;
-    src->pub.bytes_in_buffer -= (size_t) num_bytes;
-  }
-}
-
-
-/*
- * An additional method that can be provided by data source modules is the
- * resync_to_restart method for error recovery in the presence of RST markers.
- * For the moment, this source module just uses the default resync method
- * provided by the JPEG library.  That method assumes that no backtracking
- * is possible.
- */
-
-
-/*
- * Terminate source --- called by jpeg_finish_decompress
- * after all data has been read.  Often a no-op.
- *
- * NB: *not* called by jpeg_abort or jpeg_destroy; surrounding
- * application must deal with any cleanup that should happen even
- * for error exit.
- */
-
-METHODDEF(void)
-term_source (j_decompress_ptr cinfo)
-{
-  /* no work necessary here */
-}
-
-
-/*
- * Prepare for input from a stdio stream.
- * The caller must have already opened the stream, and is responsible
- * for closing it after finishing decompression.
- */
-
-GLOBAL(void)
-jpeg_stdio_src (j_decompress_ptr cinfo, FILE * infile)
-{
-  my_src_ptr src;
-
-  /* The source object and input buffer are made permanent so that a series
-   * of JPEG images can be read from the same file by calling jpeg_stdio_src
-   * only before the first one.  (If we discarded the buffer at the end of
-   * one image, we'd likely lose the start of the next one.)
-   * This makes it unsafe to use this manager and a different source
-   * manager serially with the same JPEG object.  Caveat programmer.
-   */
-  if (cinfo->src == NULL) {	/* first time for this JPEG object? */
-    cinfo->src = (struct jpeg_source_mgr *)
-      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
-				  SIZEOF(my_source_mgr));
-    src = (my_src_ptr) cinfo->src;
-    src->buffer = (JOCTET *)
-      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
-				  INPUT_BUF_SIZE * SIZEOF(JOCTET));
-  }
-
-  src = (my_src_ptr) cinfo->src;
-  src->pub.init_source = init_source;
-  src->pub.fill_input_buffer = fill_input_buffer;
-  src->pub.skip_input_data = skip_input_data;
-  src->pub.resync_to_restart = jpeg_resync_to_restart; /* use default method */
-  src->pub.term_source = term_source;
-  src->infile = infile;
-  src->pub.bytes_in_buffer = 0; /* forces fill_input_buffer on first read */
-  src->pub.next_input_byte = NULL; /* until buffer loaded */
-}
diff --git a/src/3rdparty/libjpeg/jdcoefct.c b/src/3rdparty/libjpeg/jdcoefct.c
deleted file mode 100644
index e3ba6bfaa..000000000
--- a/src/3rdparty/libjpeg/jdcoefct.c
+++ /dev/null
@@ -1,736 +0,0 @@
-/*
- * jdcoefct.c
- *
- * Copyright (C) 1994-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains the coefficient buffer controller for decompression.
- * This controller is the top level of the JPEG decompressor proper.
- * The coefficient buffer lies between entropy decoding and inverse-DCT steps.
- *
- * In buffered-image mode, this controller is the interface between
- * input-oriented processing and output-oriented processing.
- * Also, the input side (only) is used when reading a file for transcoding.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-/* Block smoothing is only applicable for progressive JPEG, so: */
-#ifndef D_PROGRESSIVE_SUPPORTED
-#undef BLOCK_SMOOTHING_SUPPORTED
-#endif
-
-/* Private buffer controller object */
-
-typedef struct {
-  struct jpeg_d_coef_controller pub; /* public fields */
-
-  /* These variables keep track of the current location of the input side. */
-  /* cinfo->input_iMCU_row is also used for this. */
-  JDIMENSION MCU_ctr;		/* counts MCUs processed in current row */
-  int MCU_vert_offset;		/* counts MCU rows within iMCU row */
-  int MCU_rows_per_iMCU_row;	/* number of such rows needed */
-
-  /* The output side's location is represented by cinfo->output_iMCU_row. */
-
-  /* In single-pass modes, it's sufficient to buffer just one MCU.
-   * We allocate a workspace of D_MAX_BLOCKS_IN_MCU coefficient blocks,
-   * and let the entropy decoder write into that workspace each time.
-   * (On 80x86, the workspace is FAR even though it's not really very big;
-   * this is to keep the module interfaces unchanged when a large coefficient
-   * buffer is necessary.)
-   * In multi-pass modes, this array points to the current MCU's blocks
-   * within the virtual arrays; it is used only by the input side.
-   */
-  JBLOCKROW MCU_buffer[D_MAX_BLOCKS_IN_MCU];
-
-#ifdef D_MULTISCAN_FILES_SUPPORTED
-  /* In multi-pass modes, we need a virtual block array for each component. */
-  jvirt_barray_ptr whole_image[MAX_COMPONENTS];
-#endif
-
-#ifdef BLOCK_SMOOTHING_SUPPORTED
-  /* When doing block smoothing, we latch coefficient Al values here */
-  int * coef_bits_latch;
-#define SAVED_COEFS  6		/* we save coef_bits[0..5] */
-#endif
-} my_coef_controller;
-
-typedef my_coef_controller * my_coef_ptr;
-
-/* Forward declarations */
-METHODDEF(int) decompress_onepass
-	JPP((j_decompress_ptr cinfo, JSAMPIMAGE output_buf));
-#ifdef D_MULTISCAN_FILES_SUPPORTED
-METHODDEF(int) decompress_data
-	JPP((j_decompress_ptr cinfo, JSAMPIMAGE output_buf));
-#endif
-#ifdef BLOCK_SMOOTHING_SUPPORTED
-LOCAL(boolean) smoothing_ok JPP((j_decompress_ptr cinfo));
-METHODDEF(int) decompress_smooth_data
-	JPP((j_decompress_ptr cinfo, JSAMPIMAGE output_buf));
-#endif
-
-
-LOCAL(void)
-start_iMCU_row (j_decompress_ptr cinfo)
-/* Reset within-iMCU-row counters for a new row (input side) */
-{
-  my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-
-  /* In an interleaved scan, an MCU row is the same as an iMCU row.
-   * In a noninterleaved scan, an iMCU row has v_samp_factor MCU rows.
-   * But at the bottom of the image, process only what's left.
-   */
-  if (cinfo->comps_in_scan > 1) {
-    coef->MCU_rows_per_iMCU_row = 1;
-  } else {
-    if (cinfo->input_iMCU_row < (cinfo->total_iMCU_rows-1))
-      coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->v_samp_factor;
-    else
-      coef->MCU_rows_per_iMCU_row = cinfo->cur_comp_info[0]->last_row_height;
-  }
-
-  coef->MCU_ctr = 0;
-  coef->MCU_vert_offset = 0;
-}
-
-
-/*
- * Initialize for an input processing pass.
- */
-
-METHODDEF(void)
-start_input_pass (j_decompress_ptr cinfo)
-{
-  cinfo->input_iMCU_row = 0;
-  start_iMCU_row(cinfo);
-}
-
-
-/*
- * Initialize for an output processing pass.
- */
-
-METHODDEF(void)
-start_output_pass (j_decompress_ptr cinfo)
-{
-#ifdef BLOCK_SMOOTHING_SUPPORTED
-  my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-
-  /* If multipass, check to see whether to use block smoothing on this pass */
-  if (coef->pub.coef_arrays != NULL) {
-    if (cinfo->do_block_smoothing && smoothing_ok(cinfo))
-      coef->pub.decompress_data = decompress_smooth_data;
-    else
-      coef->pub.decompress_data = decompress_data;
-  }
-#endif
-  cinfo->output_iMCU_row = 0;
-}
-
-
-/*
- * Decompress and return some data in the single-pass case.
- * Always attempts to emit one fully interleaved MCU row ("iMCU" row).
- * Input and output must run in lockstep since we have only a one-MCU buffer.
- * Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED.
- *
- * NB: output_buf contains a plane for each component in image,
- * which we index according to the component's SOF position.
- */
-
-METHODDEF(int)
-decompress_onepass (j_decompress_ptr cinfo, JSAMPIMAGE output_buf)
-{
-  my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-  JDIMENSION MCU_col_num;	/* index of current MCU within row */
-  JDIMENSION last_MCU_col = cinfo->MCUs_per_row - 1;
-  JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1;
-  int blkn, ci, xindex, yindex, yoffset, useful_width;
-  JSAMPARRAY output_ptr;
-  JDIMENSION start_col, output_col;
-  jpeg_component_info *compptr;
-  inverse_DCT_method_ptr inverse_DCT;
-
-  /* Loop to process as much as one whole iMCU row */
-  for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row;
-       yoffset++) {
-    for (MCU_col_num = coef->MCU_ctr; MCU_col_num <= last_MCU_col;
-	 MCU_col_num++) {
-      /* Try to fetch an MCU.  Entropy decoder expects buffer to be zeroed. */
-      jzero_far((void FAR *) coef->MCU_buffer[0],
-		(size_t) (cinfo->blocks_in_MCU * SIZEOF(JBLOCK)));
-      if (! (*cinfo->entropy->decode_mcu) (cinfo, coef->MCU_buffer)) {
-	/* Suspension forced; update state counters and exit */
-	coef->MCU_vert_offset = yoffset;
-	coef->MCU_ctr = MCU_col_num;
-	return JPEG_SUSPENDED;
-      }
-      /* Determine where data should go in output_buf and do the IDCT thing.
-       * We skip dummy blocks at the right and bottom edges (but blkn gets
-       * incremented past them!).  Note the inner loop relies on having
-       * allocated the MCU_buffer[] blocks sequentially.
-       */
-      blkn = 0;			/* index of current DCT block within MCU */
-      for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-	compptr = cinfo->cur_comp_info[ci];
-	/* Don't bother to IDCT an uninteresting component. */
-	if (! compptr->component_needed) {
-	  blkn += compptr->MCU_blocks;
-	  continue;
-	}
-	inverse_DCT = cinfo->idct->inverse_DCT[compptr->component_index];
-	useful_width = (MCU_col_num < last_MCU_col) ? compptr->MCU_width
-						    : compptr->last_col_width;
-	output_ptr = output_buf[compptr->component_index] +
-	  yoffset * compptr->DCT_scaled_size;
-	start_col = MCU_col_num * compptr->MCU_sample_width;
-	for (yindex = 0; yindex < compptr->MCU_height; yindex++) {
-	  if (cinfo->input_iMCU_row < last_iMCU_row ||
-	      yoffset+yindex < compptr->last_row_height) {
-	    output_col = start_col;
-	    for (xindex = 0; xindex < useful_width; xindex++) {
-	      (*inverse_DCT) (cinfo, compptr,
-			      (JCOEFPTR) coef->MCU_buffer[blkn+xindex],
-			      output_ptr, output_col);
-	      output_col += compptr->DCT_scaled_size;
-	    }
-	  }
-	  blkn += compptr->MCU_width;
-	  output_ptr += compptr->DCT_scaled_size;
-	}
-      }
-    }
-    /* Completed an MCU row, but perhaps not an iMCU row */
-    coef->MCU_ctr = 0;
-  }
-  /* Completed the iMCU row, advance counters for next one */
-  cinfo->output_iMCU_row++;
-  if (++(cinfo->input_iMCU_row) < cinfo->total_iMCU_rows) {
-    start_iMCU_row(cinfo);
-    return JPEG_ROW_COMPLETED;
-  }
-  /* Completed the scan */
-  (*cinfo->inputctl->finish_input_pass) (cinfo);
-  return JPEG_SCAN_COMPLETED;
-}
-
-
-/*
- * Dummy consume-input routine for single-pass operation.
- */
-
-METHODDEF(int)
-dummy_consume_data (j_decompress_ptr cinfo)
-{
-  return JPEG_SUSPENDED;	/* Always indicate nothing was done */
-}
-
-
-#ifdef D_MULTISCAN_FILES_SUPPORTED
-
-/*
- * Consume input data and store it in the full-image coefficient buffer.
- * We read as much as one fully interleaved MCU row ("iMCU" row) per call,
- * ie, v_samp_factor block rows for each component in the scan.
- * Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED.
- */
-
-METHODDEF(int)
-consume_data (j_decompress_ptr cinfo)
-{
-  my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-  JDIMENSION MCU_col_num;	/* index of current MCU within row */
-  int blkn, ci, xindex, yindex, yoffset;
-  JDIMENSION start_col;
-  JBLOCKARRAY buffer[MAX_COMPS_IN_SCAN];
-  JBLOCKROW buffer_ptr;
-  jpeg_component_info *compptr;
-
-  /* Align the virtual buffers for the components used in this scan. */
-  for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-    compptr = cinfo->cur_comp_info[ci];
-    buffer[ci] = (*cinfo->mem->access_virt_barray)
-      ((j_common_ptr) cinfo, coef->whole_image[compptr->component_index],
-       cinfo->input_iMCU_row * compptr->v_samp_factor,
-       (JDIMENSION) compptr->v_samp_factor, TRUE);
-    /* Note: entropy decoder expects buffer to be zeroed,
-     * but this is handled automatically by the memory manager
-     * because we requested a pre-zeroed array.
-     */
-  }
-
-  /* Loop to process one whole iMCU row */
-  for (yoffset = coef->MCU_vert_offset; yoffset < coef->MCU_rows_per_iMCU_row;
-       yoffset++) {
-    for (MCU_col_num = coef->MCU_ctr; MCU_col_num < cinfo->MCUs_per_row;
-	 MCU_col_num++) {
-      /* Construct list of pointers to DCT blocks belonging to this MCU */
-      blkn = 0;			/* index of current DCT block within MCU */
-      for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-	compptr = cinfo->cur_comp_info[ci];
-	start_col = MCU_col_num * compptr->MCU_width;
-	for (yindex = 0; yindex < compptr->MCU_height; yindex++) {
-	  buffer_ptr = buffer[ci][yindex+yoffset] + start_col;
-	  for (xindex = 0; xindex < compptr->MCU_width; xindex++) {
-	    coef->MCU_buffer[blkn++] = buffer_ptr++;
-	  }
-	}
-      }
-      /* Try to fetch the MCU. */
-      if (! (*cinfo->entropy->decode_mcu) (cinfo, coef->MCU_buffer)) {
-	/* Suspension forced; update state counters and exit */
-	coef->MCU_vert_offset = yoffset;
-	coef->MCU_ctr = MCU_col_num;
-	return JPEG_SUSPENDED;
-      }
-    }
-    /* Completed an MCU row, but perhaps not an iMCU row */
-    coef->MCU_ctr = 0;
-  }
-  /* Completed the iMCU row, advance counters for next one */
-  if (++(cinfo->input_iMCU_row) < cinfo->total_iMCU_rows) {
-    start_iMCU_row(cinfo);
-    return JPEG_ROW_COMPLETED;
-  }
-  /* Completed the scan */
-  (*cinfo->inputctl->finish_input_pass) (cinfo);
-  return JPEG_SCAN_COMPLETED;
-}
-
-
-/*
- * Decompress and return some data in the multi-pass case.
- * Always attempts to emit one fully interleaved MCU row ("iMCU" row).
- * Return value is JPEG_ROW_COMPLETED, JPEG_SCAN_COMPLETED, or JPEG_SUSPENDED.
- *
- * NB: output_buf contains a plane for each component in image.
- */
-
-METHODDEF(int)
-decompress_data (j_decompress_ptr cinfo, JSAMPIMAGE output_buf)
-{
-  my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-  JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1;
-  JDIMENSION block_num;
-  int ci, block_row, block_rows;
-  JBLOCKARRAY buffer;
-  JBLOCKROW buffer_ptr;
-  JSAMPARRAY output_ptr;
-  JDIMENSION output_col;
-  jpeg_component_info *compptr;
-  inverse_DCT_method_ptr inverse_DCT;
-
-  /* Force some input to be done if we are getting ahead of the input. */
-  while (cinfo->input_scan_number < cinfo->output_scan_number ||
-	 (cinfo->input_scan_number == cinfo->output_scan_number &&
-	  cinfo->input_iMCU_row <= cinfo->output_iMCU_row)) {
-    if ((*cinfo->inputctl->consume_input)(cinfo) == JPEG_SUSPENDED)
-      return JPEG_SUSPENDED;
-  }
-
-  /* OK, output from the virtual arrays. */
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    /* Don't bother to IDCT an uninteresting component. */
-    if (! compptr->component_needed)
-      continue;
-    /* Align the virtual buffer for this component. */
-    buffer = (*cinfo->mem->access_virt_barray)
-      ((j_common_ptr) cinfo, coef->whole_image[ci],
-       cinfo->output_iMCU_row * compptr->v_samp_factor,
-       (JDIMENSION) compptr->v_samp_factor, FALSE);
-    /* Count non-dummy DCT block rows in this iMCU row. */
-    if (cinfo->output_iMCU_row < last_iMCU_row)
-      block_rows = compptr->v_samp_factor;
-    else {
-      /* NB: can't use last_row_height here; it is input-side-dependent! */
-      block_rows = (int) (compptr->height_in_blocks % compptr->v_samp_factor);
-      if (block_rows == 0) block_rows = compptr->v_samp_factor;
-    }
-    inverse_DCT = cinfo->idct->inverse_DCT[ci];
-    output_ptr = output_buf[ci];
-    /* Loop over all DCT blocks to be processed. */
-    for (block_row = 0; block_row < block_rows; block_row++) {
-      buffer_ptr = buffer[block_row];
-      output_col = 0;
-      for (block_num = 0; block_num < compptr->width_in_blocks; block_num++) {
-	(*inverse_DCT) (cinfo, compptr, (JCOEFPTR) buffer_ptr,
-			output_ptr, output_col);
-	buffer_ptr++;
-	output_col += compptr->DCT_scaled_size;
-      }
-      output_ptr += compptr->DCT_scaled_size;
-    }
-  }
-
-  if (++(cinfo->output_iMCU_row) < cinfo->total_iMCU_rows)
-    return JPEG_ROW_COMPLETED;
-  return JPEG_SCAN_COMPLETED;
-}
-
-#endif /* D_MULTISCAN_FILES_SUPPORTED */
-
-
-#ifdef BLOCK_SMOOTHING_SUPPORTED
-
-/*
- * This code applies interblock smoothing as described by section K.8
- * of the JPEG standard: the first 5 AC coefficients are estimated from
- * the DC values of a DCT block and its 8 neighboring blocks.
- * We apply smoothing only for progressive JPEG decoding, and only if
- * the coefficients it can estimate are not yet known to full precision.
- */
-
-/* Natural-order array positions of the first 5 zigzag-order coefficients */
-#define Q01_POS  1
-#define Q10_POS  8
-#define Q20_POS  16
-#define Q11_POS  9
-#define Q02_POS  2
-
-/*
- * Determine whether block smoothing is applicable and safe.
- * We also latch the current states of the coef_bits[] entries for the
- * AC coefficients; otherwise, if the input side of the decompressor
- * advances into a new scan, we might think the coefficients are known
- * more accurately than they really are.
- */
-
-LOCAL(boolean)
-smoothing_ok (j_decompress_ptr cinfo)
-{
-  my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-  boolean smoothing_useful = FALSE;
-  int ci, coefi;
-  jpeg_component_info *compptr;
-  JTQUANT_TBL * qtable;
-  int * coef_bits;
-  int * coef_bits_latch;
-
-  if (! cinfo->progressive_mode || cinfo->coef_bits == NULL)
-    return FALSE;
-
-  /* Allocate latch area if not already done */
-  if (coef->coef_bits_latch == NULL)
-    coef->coef_bits_latch = (int *)
-      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				  cinfo->num_components *
-				  (SAVED_COEFS * SIZEOF(int)));
-  coef_bits_latch = coef->coef_bits_latch;
-
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    /* All components' quantization values must already be latched. */
-    if ((qtable = compptr->quant_table) == NULL)
-      return FALSE;
-    /* Verify DC & first 5 AC quantizers are nonzero to avoid zero-divide. */
-    if (qtable->quantval[0] == 0 ||
-	qtable->quantval[Q01_POS] == 0 ||
-	qtable->quantval[Q10_POS] == 0 ||
-	qtable->quantval[Q20_POS] == 0 ||
-	qtable->quantval[Q11_POS] == 0 ||
-	qtable->quantval[Q02_POS] == 0)
-      return FALSE;
-    /* DC values must be at least partly known for all components. */
-    coef_bits = cinfo->coef_bits[ci];
-    if (coef_bits[0] < 0)
-      return FALSE;
-    /* Block smoothing is helpful if some AC coefficients remain inaccurate. */
-    for (coefi = 1; coefi <= 5; coefi++) {
-      coef_bits_latch[coefi] = coef_bits[coefi];
-      if (coef_bits[coefi] != 0)
-	smoothing_useful = TRUE;
-    }
-    coef_bits_latch += SAVED_COEFS;
-  }
-
-  return smoothing_useful;
-}
-
-
-/*
- * Variant of decompress_data for use when doing block smoothing.
- */
-
-METHODDEF(int)
-decompress_smooth_data (j_decompress_ptr cinfo, JSAMPIMAGE output_buf)
-{
-  my_coef_ptr coef = (my_coef_ptr) cinfo->coef;
-  JDIMENSION last_iMCU_row = cinfo->total_iMCU_rows - 1;
-  JDIMENSION block_num, last_block_column;
-  int ci, block_row, block_rows, access_rows;
-  JBLOCKARRAY buffer;
-  JBLOCKROW buffer_ptr, prev_block_row, next_block_row;
-  JSAMPARRAY output_ptr;
-  JDIMENSION output_col;
-  jpeg_component_info *compptr;
-  inverse_DCT_method_ptr inverse_DCT;
-  boolean first_row, last_row;
-  JBLOCK workspace;
-  int *coef_bits;
-  JTQUANT_TBL *quanttbl;
-  INT32 Q00,Q01,Q02,Q10,Q11,Q20, num;
-  int DC1,DC2,DC3,DC4,DC5,DC6,DC7,DC8,DC9;
-  int Al, pred;
-
-  /* Force some input to be done if we are getting ahead of the input. */
-  while (cinfo->input_scan_number <= cinfo->output_scan_number &&
-	 ! cinfo->inputctl->eoi_reached) {
-    if (cinfo->input_scan_number == cinfo->output_scan_number) {
-      /* If input is working on current scan, we ordinarily want it to
-       * have completed the current row.  But if input scan is DC,
-       * we want it to keep one row ahead so that next block row's DC
-       * values are up to date.
-       */
-      JDIMENSION delta = (cinfo->Ss == 0) ? 1 : 0;
-      if (cinfo->input_iMCU_row > cinfo->output_iMCU_row+delta)
-	break;
-    }
-    if ((*cinfo->inputctl->consume_input)(cinfo) == JPEG_SUSPENDED)
-      return JPEG_SUSPENDED;
-  }
-
-  /* OK, output from the virtual arrays. */
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    /* Don't bother to IDCT an uninteresting component. */
-    if (! compptr->component_needed)
-      continue;
-    /* Count non-dummy DCT block rows in this iMCU row. */
-    if (cinfo->output_iMCU_row < last_iMCU_row) {
-      block_rows = compptr->v_samp_factor;
-      access_rows = block_rows * 2; /* this and next iMCU row */
-      last_row = FALSE;
-    } else {
-      /* NB: can't use last_row_height here; it is input-side-dependent! */
-      block_rows = (int) (compptr->height_in_blocks % compptr->v_samp_factor);
-      if (block_rows == 0) block_rows = compptr->v_samp_factor;
-      access_rows = block_rows; /* this iMCU row only */
-      last_row = TRUE;
-    }
-    /* Align the virtual buffer for this component. */
-    if (cinfo->output_iMCU_row > 0) {
-      access_rows += compptr->v_samp_factor; /* prior iMCU row too */
-      buffer = (*cinfo->mem->access_virt_barray)
-	((j_common_ptr) cinfo, coef->whole_image[ci],
-	 (cinfo->output_iMCU_row - 1) * compptr->v_samp_factor,
-	 (JDIMENSION) access_rows, FALSE);
-      buffer += compptr->v_samp_factor;	/* point to current iMCU row */
-      first_row = FALSE;
-    } else {
-      buffer = (*cinfo->mem->access_virt_barray)
-	((j_common_ptr) cinfo, coef->whole_image[ci],
-	 (JDIMENSION) 0, (JDIMENSION) access_rows, FALSE);
-      first_row = TRUE;
-    }
-    /* Fetch component-dependent info */
-    coef_bits = coef->coef_bits_latch + (ci * SAVED_COEFS);
-    quanttbl = compptr->quant_table;
-    Q00 = quanttbl->quantval[0];
-    Q01 = quanttbl->quantval[Q01_POS];
-    Q10 = quanttbl->quantval[Q10_POS];
-    Q20 = quanttbl->quantval[Q20_POS];
-    Q11 = quanttbl->quantval[Q11_POS];
-    Q02 = quanttbl->quantval[Q02_POS];
-    inverse_DCT = cinfo->idct->inverse_DCT[ci];
-    output_ptr = output_buf[ci];
-    /* Loop over all DCT blocks to be processed. */
-    for (block_row = 0; block_row < block_rows; block_row++) {
-      buffer_ptr = buffer[block_row];
-      if (first_row && block_row == 0)
-	prev_block_row = buffer_ptr;
-      else
-	prev_block_row = buffer[block_row-1];
-      if (last_row && block_row == block_rows-1)
-	next_block_row = buffer_ptr;
-      else
-	next_block_row = buffer[block_row+1];
-      /* We fetch the surrounding DC values using a sliding-register approach.
-       * Initialize all nine here so as to do the right thing on narrow pics.
-       */
-      DC1 = DC2 = DC3 = (int) prev_block_row[0][0];
-      DC4 = DC5 = DC6 = (int) buffer_ptr[0][0];
-      DC7 = DC8 = DC9 = (int) next_block_row[0][0];
-      output_col = 0;
-      last_block_column = compptr->width_in_blocks - 1;
-      for (block_num = 0; block_num <= last_block_column; block_num++) {
-	/* Fetch current DCT block into workspace so we can modify it. */
-	jcopy_block_row(buffer_ptr, (JBLOCKROW) workspace, (JDIMENSION) 1);
-	/* Update DC values */
-	if (block_num < last_block_column) {
-	  DC3 = (int) prev_block_row[1][0];
-	  DC6 = (int) buffer_ptr[1][0];
-	  DC9 = (int) next_block_row[1][0];
-	}
-	/* Compute coefficient estimates per K.8.
-	 * An estimate is applied only if coefficient is still zero,
-	 * and is not known to be fully accurate.
-	 */
-	/* AC01 */
-	if ((Al=coef_bits[1]) != 0 && workspace[1] == 0) {
-	  num = 36 * Q00 * (DC4 - DC6);
-	  if (num >= 0) {
-	    pred = (int) (((Q01<<7) + num) / (Q01<<8));
-	    if (Al > 0 && pred >= (1<<Al))
-	      pred = (1<<Al)-1;
-	  } else {
-	    pred = (int) (((Q01<<7) - num) / (Q01<<8));
-	    if (Al > 0 && pred >= (1<<Al))
-	      pred = (1<<Al)-1;
-	    pred = -pred;
-	  }
-	  workspace[1] = (JCOEF) pred;
-	}
-	/* AC10 */
-	if ((Al=coef_bits[2]) != 0 && workspace[8] == 0) {
-	  num = 36 * Q00 * (DC2 - DC8);
-	  if (num >= 0) {
-	    pred = (int) (((Q10<<7) + num) / (Q10<<8));
-	    if (Al > 0 && pred >= (1<<Al))
-	      pred = (1<<Al)-1;
-	  } else {
-	    pred = (int) (((Q10<<7) - num) / (Q10<<8));
-	    if (Al > 0 && pred >= (1<<Al))
-	      pred = (1<<Al)-1;
-	    pred = -pred;
-	  }
-	  workspace[8] = (JCOEF) pred;
-	}
-	/* AC20 */
-	if ((Al=coef_bits[3]) != 0 && workspace[16] == 0) {
-	  num = 9 * Q00 * (DC2 + DC8 - 2*DC5);
-	  if (num >= 0) {
-	    pred = (int) (((Q20<<7) + num) / (Q20<<8));
-	    if (Al > 0 && pred >= (1<<Al))
-	      pred = (1<<Al)-1;
-	  } else {
-	    pred = (int) (((Q20<<7) - num) / (Q20<<8));
-	    if (Al > 0 && pred >= (1<<Al))
-	      pred = (1<<Al)-1;
-	    pred = -pred;
-	  }
-	  workspace[16] = (JCOEF) pred;
-	}
-	/* AC11 */
-	if ((Al=coef_bits[4]) != 0 && workspace[9] == 0) {
-	  num = 5 * Q00 * (DC1 - DC3 - DC7 + DC9);
-	  if (num >= 0) {
-	    pred = (int) (((Q11<<7) + num) / (Q11<<8));
-	    if (Al > 0 && pred >= (1<<Al))
-	      pred = (1<<Al)-1;
-	  } else {
-	    pred = (int) (((Q11<<7) - num) / (Q11<<8));
-	    if (Al > 0 && pred >= (1<<Al))
-	      pred = (1<<Al)-1;
-	    pred = -pred;
-	  }
-	  workspace[9] = (JCOEF) pred;
-	}
-	/* AC02 */
-	if ((Al=coef_bits[5]) != 0 && workspace[2] == 0) {
-	  num = 9 * Q00 * (DC4 + DC6 - 2*DC5);
-	  if (num >= 0) {
-	    pred = (int) (((Q02<<7) + num) / (Q02<<8));
-	    if (Al > 0 && pred >= (1<<Al))
-	      pred = (1<<Al)-1;
-	  } else {
-	    pred = (int) (((Q02<<7) - num) / (Q02<<8));
-	    if (Al > 0 && pred >= (1<<Al))
-	      pred = (1<<Al)-1;
-	    pred = -pred;
-	  }
-	  workspace[2] = (JCOEF) pred;
-	}
-	/* OK, do the IDCT */
-	(*inverse_DCT) (cinfo, compptr, (JCOEFPTR) workspace,
-			output_ptr, output_col);
-	/* Advance for next column */
-	DC1 = DC2; DC2 = DC3;
-	DC4 = DC5; DC5 = DC6;
-	DC7 = DC8; DC8 = DC9;
-	buffer_ptr++, prev_block_row++, next_block_row++;
-	output_col += compptr->DCT_scaled_size;
-      }
-      output_ptr += compptr->DCT_scaled_size;
-    }
-  }
-
-  if (++(cinfo->output_iMCU_row) < cinfo->total_iMCU_rows)
-    return JPEG_ROW_COMPLETED;
-  return JPEG_SCAN_COMPLETED;
-}
-
-#endif /* BLOCK_SMOOTHING_SUPPORTED */
-
-
-/*
- * Initialize coefficient buffer controller.
- */
-
-GLOBAL(void)
-jinit_d_coef_controller (j_decompress_ptr cinfo, boolean need_full_buffer)
-{
-  my_coef_ptr coef;
-
-  coef = (my_coef_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_coef_controller));
-  cinfo->coef = (struct jpeg_d_coef_controller *) coef;
-  coef->pub.start_input_pass = start_input_pass;
-  coef->pub.start_output_pass = start_output_pass;
-#ifdef BLOCK_SMOOTHING_SUPPORTED
-  coef->coef_bits_latch = NULL;
-#endif
-
-  /* Create the coefficient buffer. */
-  if (need_full_buffer) {
-#ifdef D_MULTISCAN_FILES_SUPPORTED
-    /* Allocate a full-image virtual array for each component, */
-    /* padded to a multiple of samp_factor DCT blocks in each direction. */
-    /* Note we ask for a pre-zeroed array. */
-    int ci, access_rows;
-    jpeg_component_info *compptr;
-
-    for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-	 ci++, compptr++) {
-      access_rows = compptr->v_samp_factor;
-#ifdef BLOCK_SMOOTHING_SUPPORTED
-      /* If block smoothing could be used, need a bigger window */
-      if (cinfo->progressive_mode)
-	access_rows *= 3;
-#endif
-      coef->whole_image[ci] = (*cinfo->mem->request_virt_barray)
-	((j_common_ptr) cinfo, JPOOL_IMAGE, TRUE,
-	 (JDIMENSION) jround_up((long) compptr->width_in_blocks,
-				(long) compptr->h_samp_factor),
-	 (JDIMENSION) jround_up((long) compptr->height_in_blocks,
-				(long) compptr->v_samp_factor),
-	 (JDIMENSION) access_rows);
-    }
-    coef->pub.consume_data = consume_data;
-    coef->pub.decompress_data = decompress_data;
-    coef->pub.coef_arrays = coef->whole_image; /* link to virtual arrays */
-#else
-    ERREXIT(cinfo, JERR_NOT_COMPILED);
-#endif
-  } else {
-    /* We only need a single-MCU buffer. */
-    JBLOCKROW buffer;
-    int i;
-
-    buffer = (JBLOCKROW)
-      (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				  D_MAX_BLOCKS_IN_MCU * SIZEOF(JBLOCK));
-    for (i = 0; i < D_MAX_BLOCKS_IN_MCU; i++) {
-      coef->MCU_buffer[i] = buffer + i;
-    }
-    coef->pub.consume_data = dummy_consume_data;
-    coef->pub.decompress_data = decompress_onepass;
-    coef->pub.coef_arrays = NULL; /* flag for no virtual arrays */
-  }
-}
diff --git a/src/3rdparty/libjpeg/jdcolor.c b/src/3rdparty/libjpeg/jdcolor.c
deleted file mode 100644
index 6c04dfe8a..000000000
--- a/src/3rdparty/libjpeg/jdcolor.c
+++ /dev/null
@@ -1,396 +0,0 @@
-/*
- * jdcolor.c
- *
- * Copyright (C) 1991-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains output colorspace conversion routines.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/* Private subobject */
-
-typedef struct {
-  struct jpeg_color_deconverter pub; /* public fields */
-
-  /* Private state for YCC->RGB conversion */
-  int * Cr_r_tab;		/* => table for Cr to R conversion */
-  int * Cb_b_tab;		/* => table for Cb to B conversion */
-  INT32 * Cr_g_tab;		/* => table for Cr to G conversion */
-  INT32 * Cb_g_tab;		/* => table for Cb to G conversion */
-} my_color_deconverter;
-
-typedef my_color_deconverter * my_cconvert_ptr;
-
-
-/**************** YCbCr -> RGB conversion: most common case **************/
-
-/*
- * YCbCr is defined per CCIR 601-1, except that Cb and Cr are
- * normalized to the range 0..MAXJSAMPLE rather than -0.5 .. 0.5.
- * The conversion equations to be implemented are therefore
- *	R = Y                + 1.40200 * Cr
- *	G = Y - 0.34414 * Cb - 0.71414 * Cr
- *	B = Y + 1.77200 * Cb
- * where Cb and Cr represent the incoming values less CENTERJSAMPLE.
- * (These numbers are derived from TIFF 6.0 section 21, dated 3-June-92.)
- *
- * To avoid floating-point arithmetic, we represent the fractional constants
- * as integers scaled up by 2^16 (about 4 digits precision); we have to divide
- * the products by 2^16, with appropriate rounding, to get the correct answer.
- * Notice that Y, being an integral input, does not contribute any fraction
- * so it need not participate in the rounding.
- *
- * For even more speed, we avoid doing any multiplications in the inner loop
- * by precalculating the constants times Cb and Cr for all possible values.
- * For 8-bit JSAMPLEs this is very reasonable (only 256 entries per table);
- * for 12-bit samples it is still acceptable.  It's not very reasonable for
- * 16-bit samples, but if you want lossless storage you shouldn't be changing
- * colorspace anyway.
- * The Cr=>R and Cb=>B values can be rounded to integers in advance; the
- * values for the G calculation are left scaled up, since we must add them
- * together before rounding.
- */
-
-#define SCALEBITS	16	/* speediest right-shift on some machines */
-#define ONE_HALF	((INT32) 1 << (SCALEBITS-1))
-#define FIX(x)		((INT32) ((x) * (1L<<SCALEBITS) + 0.5))
-
-
-/*
- * Initialize tables for YCC->RGB colorspace conversion.
- */
-
-LOCAL(void)
-build_ycc_rgb_table (j_decompress_ptr cinfo)
-{
-  my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
-  int i;
-  INT32 x;
-  SHIFT_TEMPS
-
-  cconvert->Cr_r_tab = (int *)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				(MAXJSAMPLE+1) * SIZEOF(int));
-  cconvert->Cb_b_tab = (int *)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				(MAXJSAMPLE+1) * SIZEOF(int));
-  cconvert->Cr_g_tab = (INT32 *)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				(MAXJSAMPLE+1) * SIZEOF(INT32));
-  cconvert->Cb_g_tab = (INT32 *)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				(MAXJSAMPLE+1) * SIZEOF(INT32));
-
-  for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) {
-    /* i is the actual input pixel value, in the range 0..MAXJSAMPLE */
-    /* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */
-    /* Cr=>R value is nearest int to 1.40200 * x */
-    cconvert->Cr_r_tab[i] = (int)
-		    RIGHT_SHIFT(FIX(1.40200) * x + ONE_HALF, SCALEBITS);
-    /* Cb=>B value is nearest int to 1.77200 * x */
-    cconvert->Cb_b_tab[i] = (int)
-		    RIGHT_SHIFT(FIX(1.77200) * x + ONE_HALF, SCALEBITS);
-    /* Cr=>G value is scaled-up -0.71414 * x */
-    cconvert->Cr_g_tab[i] = (- FIX(0.71414)) * x;
-    /* Cb=>G value is scaled-up -0.34414 * x */
-    /* We also add in ONE_HALF so that need not do it in inner loop */
-    cconvert->Cb_g_tab[i] = (- FIX(0.34414)) * x + ONE_HALF;
-  }
-}
-
-
-/*
- * Convert some rows of samples to the output colorspace.
- *
- * Note that we change from noninterleaved, one-plane-per-component format
- * to interleaved-pixel format.  The output buffer is therefore three times
- * as wide as the input buffer.
- * A starting row offset is provided only for the input buffer.  The caller
- * can easily adjust the passed output_buf value to accommodate any row
- * offset required on that side.
- */
-
-METHODDEF(void)
-ycc_rgb_convert (j_decompress_ptr cinfo,
-		 JSAMPIMAGE input_buf, JDIMENSION input_row,
-		 JSAMPARRAY output_buf, int num_rows)
-{
-  my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
-  register int y, cb, cr;
-  register JSAMPROW outptr;
-  register JSAMPROW inptr0, inptr1, inptr2;
-  register JDIMENSION col;
-  JDIMENSION num_cols = cinfo->output_width;
-  /* copy these pointers into registers if possible */
-  register JSAMPLE * range_limit = cinfo->sample_range_limit;
-  register int * Crrtab = cconvert->Cr_r_tab;
-  register int * Cbbtab = cconvert->Cb_b_tab;
-  register INT32 * Crgtab = cconvert->Cr_g_tab;
-  register INT32 * Cbgtab = cconvert->Cb_g_tab;
-  SHIFT_TEMPS
-
-  while (--num_rows >= 0) {
-    inptr0 = input_buf[0][input_row];
-    inptr1 = input_buf[1][input_row];
-    inptr2 = input_buf[2][input_row];
-    input_row++;
-    outptr = *output_buf++;
-    for (col = 0; col < num_cols; col++) {
-      y  = GETJSAMPLE(inptr0[col]);
-      cb = GETJSAMPLE(inptr1[col]);
-      cr = GETJSAMPLE(inptr2[col]);
-      /* Range-limiting is essential due to noise introduced by DCT losses. */
-      outptr[RGB_RED] =   range_limit[y + Crrtab[cr]];
-      outptr[RGB_GREEN] = range_limit[y +
-			      ((int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr],
-						 SCALEBITS))];
-      outptr[RGB_BLUE] =  range_limit[y + Cbbtab[cb]];
-      outptr += RGB_PIXELSIZE;
-    }
-  }
-}
-
-
-/**************** Cases other than YCbCr -> RGB **************/
-
-
-/*
- * Color conversion for no colorspace change: just copy the data,
- * converting from separate-planes to interleaved representation.
- */
-
-METHODDEF(void)
-null_convert (j_decompress_ptr cinfo,
-	      JSAMPIMAGE input_buf, JDIMENSION input_row,
-	      JSAMPARRAY output_buf, int num_rows)
-{
-  register JSAMPROW inptr, outptr;
-  register JDIMENSION count;
-  register int num_components = cinfo->num_components;
-  JDIMENSION num_cols = cinfo->output_width;
-  int ci;
-
-  while (--num_rows >= 0) {
-    for (ci = 0; ci < num_components; ci++) {
-      inptr = input_buf[ci][input_row];
-      outptr = output_buf[0] + ci;
-      for (count = num_cols; count > 0; count--) {
-	*outptr = *inptr++;	/* needn't bother with GETJSAMPLE() here */
-	outptr += num_components;
-      }
-    }
-    input_row++;
-    output_buf++;
-  }
-}
-
-
-/*
- * Color conversion for grayscale: just copy the data.
- * This also works for YCbCr -> grayscale conversion, in which
- * we just copy the Y (luminance) component and ignore chrominance.
- */
-
-METHODDEF(void)
-grayscale_convert (j_decompress_ptr cinfo,
-		   JSAMPIMAGE input_buf, JDIMENSION input_row,
-		   JSAMPARRAY output_buf, int num_rows)
-{
-  jcopy_sample_rows(input_buf[0], (int) input_row, output_buf, 0,
-		    num_rows, cinfo->output_width);
-}
-
-
-/*
- * Convert grayscale to RGB: just duplicate the graylevel three times.
- * This is provided to support applications that don't want to cope
- * with grayscale as a separate case.
- */
-
-METHODDEF(void)
-gray_rgb_convert (j_decompress_ptr cinfo,
-		  JSAMPIMAGE input_buf, JDIMENSION input_row,
-		  JSAMPARRAY output_buf, int num_rows)
-{
-  register JSAMPROW inptr, outptr;
-  register JDIMENSION col;
-  JDIMENSION num_cols = cinfo->output_width;
-
-  while (--num_rows >= 0) {
-    inptr = input_buf[0][input_row++];
-    outptr = *output_buf++;
-    for (col = 0; col < num_cols; col++) {
-      /* We can dispense with GETJSAMPLE() here */
-      outptr[RGB_RED] = outptr[RGB_GREEN] = outptr[RGB_BLUE] = inptr[col];
-      outptr += RGB_PIXELSIZE;
-    }
-  }
-}
-
-
-/*
- * Adobe-style YCCK->CMYK conversion.
- * We convert YCbCr to R=1-C, G=1-M, and B=1-Y using the same
- * conversion as above, while passing K (black) unchanged.
- * We assume build_ycc_rgb_table has been called.
- */
-
-METHODDEF(void)
-ycck_cmyk_convert (j_decompress_ptr cinfo,
-		   JSAMPIMAGE input_buf, JDIMENSION input_row,
-		   JSAMPARRAY output_buf, int num_rows)
-{
-  my_cconvert_ptr cconvert = (my_cconvert_ptr) cinfo->cconvert;
-  register int y, cb, cr;
-  register JSAMPROW outptr;
-  register JSAMPROW inptr0, inptr1, inptr2, inptr3;
-  register JDIMENSION col;
-  JDIMENSION num_cols = cinfo->output_width;
-  /* copy these pointers into registers if possible */
-  register JSAMPLE * range_limit = cinfo->sample_range_limit;
-  register int * Crrtab = cconvert->Cr_r_tab;
-  register int * Cbbtab = cconvert->Cb_b_tab;
-  register INT32 * Crgtab = cconvert->Cr_g_tab;
-  register INT32 * Cbgtab = cconvert->Cb_g_tab;
-  SHIFT_TEMPS
-
-  while (--num_rows >= 0) {
-    inptr0 = input_buf[0][input_row];
-    inptr1 = input_buf[1][input_row];
-    inptr2 = input_buf[2][input_row];
-    inptr3 = input_buf[3][input_row];
-    input_row++;
-    outptr = *output_buf++;
-    for (col = 0; col < num_cols; col++) {
-      y  = GETJSAMPLE(inptr0[col]);
-      cb = GETJSAMPLE(inptr1[col]);
-      cr = GETJSAMPLE(inptr2[col]);
-      /* Range-limiting is essential due to noise introduced by DCT losses. */
-      outptr[0] = range_limit[MAXJSAMPLE - (y + Crrtab[cr])];	/* red */
-      outptr[1] = range_limit[MAXJSAMPLE - (y +			/* green */
-			      ((int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr],
-						 SCALEBITS)))];
-      outptr[2] = range_limit[MAXJSAMPLE - (y + Cbbtab[cb])];	/* blue */
-      /* K passes through unchanged */
-      outptr[3] = inptr3[col];	/* don't need GETJSAMPLE here */
-      outptr += 4;
-    }
-  }
-}
-
-
-/*
- * Empty method for start_pass.
- */
-
-METHODDEF(void)
-start_pass_dcolor (j_decompress_ptr cinfo)
-{
-  /* no work needed */
-}
-
-
-/*
- * Module initialization routine for output colorspace conversion.
- */
-
-GLOBAL(void)
-jinit_color_deconverter (j_decompress_ptr cinfo)
-{
-  my_cconvert_ptr cconvert;
-  int ci;
-
-  cconvert = (my_cconvert_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_color_deconverter));
-  cinfo->cconvert = (struct jpeg_color_deconverter *) cconvert;
-  cconvert->pub.start_pass = start_pass_dcolor;
-
-  /* Make sure num_components agrees with jpeg_color_space */
-  switch (cinfo->jpeg_color_space) {
-  case JCS_GRAYSCALE:
-    if (cinfo->num_components != 1)
-      ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-    break;
-
-  case JCS_RGB:
-  case JCS_YCbCr:
-    if (cinfo->num_components != 3)
-      ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-    break;
-
-  case JCS_CMYK:
-  case JCS_YCCK:
-    if (cinfo->num_components != 4)
-      ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-    break;
-
-  default:			/* JCS_UNKNOWN can be anything */
-    if (cinfo->num_components < 1)
-      ERREXIT(cinfo, JERR_BAD_J_COLORSPACE);
-    break;
-  }
-
-  /* Set out_color_components and conversion method based on requested space.
-   * Also clear the component_needed flags for any unused components,
-   * so that earlier pipeline stages can avoid useless computation.
-   */
-
-  switch (cinfo->out_color_space) {
-  case JCS_GRAYSCALE:
-    cinfo->out_color_components = 1;
-    if (cinfo->jpeg_color_space == JCS_GRAYSCALE ||
-	cinfo->jpeg_color_space == JCS_YCbCr) {
-      cconvert->pub.color_convert = grayscale_convert;
-      /* For color->grayscale conversion, only the Y (0) component is needed */
-      for (ci = 1; ci < cinfo->num_components; ci++)
-	cinfo->comp_info[ci].component_needed = FALSE;
-    } else
-      ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
-    break;
-
-  case JCS_RGB:
-    cinfo->out_color_components = RGB_PIXELSIZE;
-    if (cinfo->jpeg_color_space == JCS_YCbCr) {
-      cconvert->pub.color_convert = ycc_rgb_convert;
-      build_ycc_rgb_table(cinfo);
-    } else if (cinfo->jpeg_color_space == JCS_GRAYSCALE) {
-      cconvert->pub.color_convert = gray_rgb_convert;
-    } else if (cinfo->jpeg_color_space == JCS_RGB && RGB_PIXELSIZE == 3) {
-      cconvert->pub.color_convert = null_convert;
-    } else
-      ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
-    break;
-
-  case JCS_CMYK:
-    cinfo->out_color_components = 4;
-    if (cinfo->jpeg_color_space == JCS_YCCK) {
-      cconvert->pub.color_convert = ycck_cmyk_convert;
-      build_ycc_rgb_table(cinfo);
-    } else if (cinfo->jpeg_color_space == JCS_CMYK) {
-      cconvert->pub.color_convert = null_convert;
-    } else
-      ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
-    break;
-
-  default:
-    /* Permit null conversion to same output space */
-    if (cinfo->out_color_space == cinfo->jpeg_color_space) {
-      cinfo->out_color_components = cinfo->num_components;
-      cconvert->pub.color_convert = null_convert;
-    } else			/* unsupported non-null conversion */
-      ERREXIT(cinfo, JERR_CONVERSION_NOTIMPL);
-    break;
-  }
-
-  if (cinfo->quantize_colors)
-    cinfo->output_components = 1; /* single colormapped output component */
-  else
-    cinfo->output_components = cinfo->out_color_components;
-}
diff --git a/src/3rdparty/libjpeg/jdct.h b/src/3rdparty/libjpeg/jdct.h
deleted file mode 100644
index 2fd3ffcda..000000000
--- a/src/3rdparty/libjpeg/jdct.h
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
- * jdct.h
- *
- * Copyright (C) 1994-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This include file contains common declarations for the forward and
- * inverse DCT modules.  These declarations are private to the DCT managers
- * (jcdctmgr.c, jddctmgr.c) and the individual DCT algorithms.
- * The individual DCT algorithms are kept in separate files to ease 
- * machine-dependent tuning (e.g., assembly coding).
- */
-
-
-/*
- * A forward DCT routine is given a pointer to a work area of type DCTELEM[];
- * the DCT is to be performed in-place in that buffer.  Type DCTELEM is int
- * for 8-bit samples, INT32 for 12-bit samples.  (NOTE: Floating-point DCT
- * implementations use an array of type FAST_FLOAT, instead.)
- * The DCT inputs are expected to be signed (range +-CENTERJSAMPLE).
- * The DCT outputs are returned scaled up by a factor of 8; they therefore
- * have a range of +-8K for 8-bit data, +-128K for 12-bit data.  This
- * convention improves accuracy in integer implementations and saves some
- * work in floating-point ones.
- * Quantization of the output coefficients is done by jcdctmgr.c.
- */
-
-#if BITS_IN_JSAMPLE == 8
-typedef int DCTELEM;		/* 16 or 32 bits is fine */
-#else
-typedef INT32 DCTELEM;		/* must have 32 bits */
-#endif
-
-typedef JMETHOD(void, forward_DCT_method_ptr, (DCTELEM * data));
-typedef JMETHOD(void, float_DCT_method_ptr, (FAST_FLOAT * data));
-
-
-/*
- * An inverse DCT routine is given a pointer to the input JBLOCK and a pointer
- * to an output sample array.  The routine must dequantize the input data as
- * well as perform the IDCT; for dequantization, it uses the multiplier table
- * pointed to by compptr->dct_table.  The output data is to be placed into the
- * sample array starting at a specified column.  (Any row offset needed will
- * be applied to the array pointer before it is passed to the IDCT code.)
- * Note that the number of samples emitted by the IDCT routine is
- * DCT_scaled_size * DCT_scaled_size.
- */
-
-/* typedef inverse_DCT_method_ptr is declared in jpegint.h */
-
-/*
- * Each IDCT routine has its own ideas about the best dct_table element type.
- */
-
-typedef MULTIPLIER ISLOW_MULT_TYPE; /* short or int, whichever is faster */
-#if BITS_IN_JSAMPLE == 8
-typedef MULTIPLIER IFAST_MULT_TYPE; /* 16 bits is OK, use short if faster */
-#define IFAST_SCALE_BITS  2	/* fractional bits in scale factors */
-#else
-typedef INT32 IFAST_MULT_TYPE;	/* need 32 bits for scaled quantizers */
-#define IFAST_SCALE_BITS  13	/* fractional bits in scale factors */
-#endif
-typedef FAST_FLOAT FLOAT_MULT_TYPE; /* preferred floating type */
-
-
-/*
- * Each IDCT routine is responsible for range-limiting its results and
- * converting them to unsigned form (0..MAXJSAMPLE).  The raw outputs could
- * be quite far out of range if the input data is corrupt, so a bulletproof
- * range-limiting step is required.  We use a mask-and-table-lookup method
- * to do the combined operations tquickly.  See the comments with
- * prepare_range_limit_table (in jdmaster.c) for more info.
- */
-
-#define IDCT_range_limit(cinfo)  ((cinfo)->sample_range_limit + CENTERJSAMPLE)
-
-#define RANGE_MASK  (MAXJSAMPLE * 4 + 3) /* 2 bits wider than legal samples */
-
-
-/* Short forms of external names for systems with brain-damaged linkers. */
-
-#ifdef NEED_SHORT_EXTERNAL_NAMES
-#define jpeg_fdct_islow		jFDislow
-#define jpeg_fdct_ifast		jFDifast
-#define jpeg_fdct_float		jFDfloat
-#define jpeg_idct_islow		jRDislow
-#define jpeg_idct_ifast		jRDifast
-#define jpeg_idct_float		jRDfloat
-#define jpeg_idct_4x4		jRD4x4
-#define jpeg_idct_2x2		jRD2x2
-#define jpeg_idct_1x1		jRD1x1
-#endif /* NEED_SHORT_EXTERNAL_NAMES */
-
-/* Extern declarations for the forward and inverse DCT routines. */
-
-EXTERN(void) jpeg_fdct_islow JPP((DCTELEM * data));
-EXTERN(void) jpeg_fdct_ifast JPP((DCTELEM * data));
-EXTERN(void) jpeg_fdct_float JPP((FAST_FLOAT * data));
-
-EXTERN(void) jpeg_idct_islow
-    JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
-	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
-EXTERN(void) jpeg_idct_ifast
-    JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
-	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
-EXTERN(void) jpeg_idct_float
-    JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
-	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
-EXTERN(void) jpeg_idct_4x4
-    JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
-	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
-EXTERN(void) jpeg_idct_2x2
-    JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
-	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
-EXTERN(void) jpeg_idct_1x1
-    JPP((j_decompress_ptr cinfo, jpeg_component_info * compptr,
-	 JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col));
-
-
-/*
- * Macros for handling fixed-point arithmetic; these are used by many
- * but not all of the DCT/IDCT modules.
- *
- * All values are expected to be of type INT32.
- * Fractional constants are scaled left by CONST_BITS bits.
- * CONST_BITS is defined within each module using these macros,
- * and may differ from one module to the next.
- */
-
-#define ONE	((INT32) 1)
-#define CONST_SCALE (ONE << CONST_BITS)
-
-/* Convert a positive real constant to an integer scaled by CONST_SCALE.
- * Caution: some C compilers fail to reduce "FIX(constant)" at compile time,
- * thus causing a lot of useless floating-point operations at run time.
- */
-
-#define FIX(x)	((INT32) ((x) * CONST_SCALE + 0.5))
-
-/* Descale and correctly round an INT32 value that's scaled by N bits.
- * We assume RIGHT_SHIFT rounds towards minus infinity, so adding
- * the fudge factor is correct for either sign of X.
- */
-
-#define DESCALE(x,n)  RIGHT_SHIFT((x) + (ONE << ((n)-1)), n)
-
-/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result.
- * This macro is used only when the two inputs will actually be no more than
- * 16 bits wide, so that a 16x16->32 bit multiply can be used instead of a
- * full 32x32 multiply.  This provides a useful speedup on many machines.
- * Unfortunately there is no way to specify a 16x16->32 multiply portably
- * in C, but some C compilers will do the right thing if you provide the
- * correct combination of casts.
- */
-
-#ifdef SHORTxSHORT_32		/* may work if 'int' is 32 bits */
-#define MULTIPLY16C16(var,const)  (((INT16) (var)) * ((INT16) (const)))
-#endif
-#ifdef SHORTxLCONST_32		/* known to work with Microsoft C 6.0 */
-#define MULTIPLY16C16(var,const)  (((INT16) (var)) * ((INT32) (const)))
-#endif
-
-#ifndef MULTIPLY16C16		/* default definition */
-#define MULTIPLY16C16(var,const)  ((var) * (const))
-#endif
-
-/* Same except both inputs are variables. */
-
-#ifdef SHORTxSHORT_32		/* may work if 'int' is 32 bits */
-#define MULTIPLY16V16(var1,var2)  (((INT16) (var1)) * ((INT16) (var2)))
-#endif
-
-#ifndef MULTIPLY16V16		/* default definition */
-#define MULTIPLY16V16(var1,var2)  ((var1) * (var2))
-#endif
diff --git a/src/3rdparty/libjpeg/jddctmgr.c b/src/3rdparty/libjpeg/jddctmgr.c
deleted file mode 100644
index 9d80fe9e9..000000000
--- a/src/3rdparty/libjpeg/jddctmgr.c
+++ /dev/null
@@ -1,269 +0,0 @@
-/*
- * jddctmgr.c
- *
- * Copyright (C) 1994-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains the inverse-DCT management logic.
- * This code selects a particular IDCT implementation to be used,
- * and it performs related housekeeping chores.  No code in this file
- * is executed per IDCT step, only during output pass setup.
- *
- * Note that the IDCT routines are responsible for performing coefficient
- * dequantization as well as the IDCT proper.  This module sets up the
- * dequantization multiplier table needed by the IDCT routine.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jdct.h"		/* Private declarations for DCT subsystem */
-
-
-/*
- * The decompressor input side (jdinput.c) saves away the appropriate
- * quantization table for each component at the start of the first scan
- * involving that component.  (This is necessary in order to correctly
- * decode files that reuse Q-table slots.)
- * When we are ready to make an output pass, the saved Q-table is converted
- * to a multiplier table that will actually be used by the IDCT routine.
- * The multiplier table contents are IDCT-method-dependent.  To support
- * application changes in IDCT method between scans, we can remake the
- * multiplier tables if necessary.
- * In buffered-image mode, the first output pass may occur before any data
- * has been seen for some components, and thus before their Q-tables have
- * been saved away.  To handle this case, multiplier tables are preset
- * to zeroes; the result of the IDCT will be a neutral gray level.
- */
-
-
-/* Private subobject for this module */
-
-typedef struct {
-  struct jpeg_inverse_dct pub;	/* public fields */
-
-  /* This array contains the IDCT method code that each multiplier table
-   * is currently set up for, or -1 if it's not yet set up.
-   * The actual multiplier tables are pointed to by dct_table in the
-   * per-component comp_info structures.
-   */
-  int cur_method[MAX_COMPONENTS];
-} my_idct_controller;
-
-typedef my_idct_controller * my_idct_ptr;
-
-
-/* Allocated multiplier tables: big enough for any supported variant */
-
-typedef union {
-  ISLOW_MULT_TYPE islow_array[DCTSIZE2];
-#ifdef DCT_IFAST_SUPPORTED
-  IFAST_MULT_TYPE ifast_array[DCTSIZE2];
-#endif
-#ifdef DCT_FLOAT_SUPPORTED
-  FLOAT_MULT_TYPE float_array[DCTSIZE2];
-#endif
-} multiplier_table;
-
-
-/* The current scaled-IDCT routines require ISLOW-style multiplier tables,
- * so be sure to compile that code if either ISLOW or SCALING is requested.
- */
-#ifdef DCT_ISLOW_SUPPORTED
-#define PROVIDE_ISLOW_TABLES
-#else
-#ifdef IDCT_SCALING_SUPPORTED
-#define PROVIDE_ISLOW_TABLES
-#endif
-#endif
-
-
-/*
- * Prepare for an output pass.
- * Here we select the proper IDCT routine for each component and build
- * a matching multiplier table.
- */
-
-METHODDEF(void)
-start_pass (j_decompress_ptr cinfo)
-{
-  my_idct_ptr idct = (my_idct_ptr) cinfo->idct;
-  int ci, i;
-  jpeg_component_info *compptr;
-  int method = 0;
-  inverse_DCT_method_ptr method_ptr = NULL;
-  JTQUANT_TBL * qtbl;
-
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    /* Select the proper IDCT routine for this component's scaling */
-    switch (compptr->DCT_scaled_size) {
-#ifdef IDCT_SCALING_SUPPORTED
-    case 1:
-      method_ptr = jpeg_idct_1x1;
-      method = JDCT_ISLOW;	/* jidctred uses islow-style table */
-      break;
-    case 2:
-      method_ptr = jpeg_idct_2x2;
-      method = JDCT_ISLOW;	/* jidctred uses islow-style table */
-      break;
-    case 4:
-      method_ptr = jpeg_idct_4x4;
-      method = JDCT_ISLOW;	/* jidctred uses islow-style table */
-      break;
-#endif
-    case DCTSIZE:
-      switch (cinfo->dct_method) {
-#ifdef DCT_ISLOW_SUPPORTED
-      case JDCT_ISLOW:
-	method_ptr = jpeg_idct_islow;
-	method = JDCT_ISLOW;
-	break;
-#endif
-#ifdef DCT_IFAST_SUPPORTED
-      case JDCT_IFAST:
-	method_ptr = jpeg_idct_ifast;
-	method = JDCT_IFAST;
-	break;
-#endif
-#ifdef DCT_FLOAT_SUPPORTED
-      case JDCT_FLOAT:
-	method_ptr = jpeg_idct_float;
-	method = JDCT_FLOAT;
-	break;
-#endif
-      default:
-	ERREXIT(cinfo, JERR_NOT_COMPILED);
-	break;
-      }
-      break;
-    default:
-      ERREXIT1(cinfo, JERR_BAD_DCTSIZE, compptr->DCT_scaled_size);
-      break;
-    }
-    idct->pub.inverse_DCT[ci] = method_ptr;
-    /* Create multiplier table from quant table.
-     * However, we can skip this if the component is uninteresting
-     * or if we already built the table.  Also, if no quant table
-     * has yet been saved for the component, we leave the
-     * multiplier table all-zero; we'll be reading zeroes from the
-     * coefficient controller's buffer anyway.
-     */
-    if (! compptr->component_needed || idct->cur_method[ci] == method)
-      continue;
-    qtbl = compptr->quant_table;
-    if (qtbl == NULL)		/* happens if no data yet for component */
-      continue;
-    idct->cur_method[ci] = method;
-    switch (method) {
-#ifdef PROVIDE_ISLOW_TABLES
-    case JDCT_ISLOW:
-      {
-	/* For LL&M IDCT method, multipliers are equal to raw quantization
-	 * coefficients, but are stored as ints to ensure access efficiency.
-	 */
-	ISLOW_MULT_TYPE * ismtbl = (ISLOW_MULT_TYPE *) compptr->dct_table;
-	for (i = 0; i < DCTSIZE2; i++) {
-	  ismtbl[i] = (ISLOW_MULT_TYPE) qtbl->quantval[i];
-	}
-      }
-      break;
-#endif
-#ifdef DCT_IFAST_SUPPORTED
-    case JDCT_IFAST:
-      {
-	/* For AA&N IDCT method, multipliers are equal to quantization
-	 * coefficients scaled by scalefactor[row]*scalefactor[col], where
-	 *   scalefactor[0] = 1
-	 *   scalefactor[k] = cos(k*PI/16) * sqrt(2)    for k=1..7
-	 * For integer operation, the multiplier table is to be scaled by
-	 * IFAST_SCALE_BITS.
-	 */
-	IFAST_MULT_TYPE * ifmtbl = (IFAST_MULT_TYPE *) compptr->dct_table;
-#define CONST_BITS 14
-	static const INT16 aanscales[DCTSIZE2] = {
-	  /* precomputed values scaled up by 14 bits */
-	  16384, 22725, 21407, 19266, 16384, 12873,  8867,  4520,
-	  22725, 31521, 29692, 26722, 22725, 17855, 12299,  6270,
-	  21407, 29692, 27969, 25172, 21407, 16819, 11585,  5906,
-	  19266, 26722, 25172, 22654, 19266, 15137, 10426,  5315,
-	  16384, 22725, 21407, 19266, 16384, 12873,  8867,  4520,
-	  12873, 17855, 16819, 15137, 12873, 10114,  6967,  3552,
-	   8867, 12299, 11585, 10426,  8867,  6967,  4799,  2446,
-	   4520,  6270,  5906,  5315,  4520,  3552,  2446,  1247
-	};
-	SHIFT_TEMPS
-
-	for (i = 0; i < DCTSIZE2; i++) {
-	  ifmtbl[i] = (IFAST_MULT_TYPE)
-	    DESCALE(MULTIPLY16V16((INT32) qtbl->quantval[i],
-				  (INT32) aanscales[i]),
-		    CONST_BITS-IFAST_SCALE_BITS);
-	}
-      }
-      break;
-#endif
-#ifdef DCT_FLOAT_SUPPORTED
-    case JDCT_FLOAT:
-      {
-	/* For float AA&N IDCT method, multipliers are equal to quantization
-	 * coefficients scaled by scalefactor[row]*scalefactor[col], where
-	 *   scalefactor[0] = 1
-	 *   scalefactor[k] = cos(k*PI/16) * sqrt(2)    for k=1..7
-	 */
-	FLOAT_MULT_TYPE * fmtbl = (FLOAT_MULT_TYPE *) compptr->dct_table;
-	int row, col;
-	static const double aanscalefactor[DCTSIZE] = {
-	  1.0, 1.387039845, 1.306562965, 1.175875602,
-	  1.0, 0.785694958, 0.541196100, 0.275899379
-	};
-
-	i = 0;
-	for (row = 0; row < DCTSIZE; row++) {
-	  for (col = 0; col < DCTSIZE; col++) {
-	    fmtbl[i] = (FLOAT_MULT_TYPE)
-	      ((double) qtbl->quantval[i] *
-	       aanscalefactor[row] * aanscalefactor[col]);
-	    i++;
-	  }
-	}
-      }
-      break;
-#endif
-    default:
-      ERREXIT(cinfo, JERR_NOT_COMPILED);
-      break;
-    }
-  }
-}
-
-
-/*
- * Initialize IDCT manager.
- */
-
-GLOBAL(void)
-jinit_inverse_dct (j_decompress_ptr cinfo)
-{
-  my_idct_ptr idct;
-  int ci;
-  jpeg_component_info *compptr;
-
-  idct = (my_idct_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_idct_controller));
-  cinfo->idct = (struct jpeg_inverse_dct *) idct;
-  idct->pub.start_pass = start_pass;
-
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    /* Allocate and pre-zero a multiplier table for each component */
-    compptr->dct_table =
-      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				  SIZEOF(multiplier_table));
-    MEMZERO(compptr->dct_table, SIZEOF(multiplier_table));
-    /* Mark multiplier table not yet set up for any method */
-    idct->cur_method[ci] = -1;
-  }
-}
diff --git a/src/3rdparty/libjpeg/jdhuff.c b/src/3rdparty/libjpeg/jdhuff.c
deleted file mode 100644
index d99f9e7ca..000000000
--- a/src/3rdparty/libjpeg/jdhuff.c
+++ /dev/null
@@ -1,651 +0,0 @@
-/*
- * jdhuff.c
- *
- * Copyright (C) 1991-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains Huffman entropy decoding routines.
- *
- * Much of the complexity here has to do with supporting input suspension.
- * If the data source module demands suspension, we want to be able to back
- * up to the start of the current MCU.  To do this, we copy state variables
- * into local working storage, and update them back to the permanent
- * storage only upon successful completion of an MCU.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jdhuff.h"		/* Declarations shared with jdphuff.c */
-
-
-/*
- * Expanded entropy decoder object for Huffman decoding.
- *
- * The savable_state subrecord contains fields that change within an MCU,
- * but must not be updated permanently until we complete the MCU.
- */
-
-typedef struct {
-  int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */
-} savable_state;
-
-/* This macro is to work around compilers with missing or broken
- * structure assignment.  You'll need to fix this code if you have
- * such a compiler and you change MAX_COMPS_IN_SCAN.
- */
-
-#ifndef NO_STRUCT_ASSIGN
-#define ASSIGN_STATE(dest,src)  ((dest) = (src))
-#else
-#if MAX_COMPS_IN_SCAN == 4
-#define ASSIGN_STATE(dest,src)  \
-	((dest).last_dc_val[0] = (src).last_dc_val[0], \
-	 (dest).last_dc_val[1] = (src).last_dc_val[1], \
-	 (dest).last_dc_val[2] = (src).last_dc_val[2], \
-	 (dest).last_dc_val[3] = (src).last_dc_val[3])
-#endif
-#endif
-
-
-typedef struct {
-  struct jpeg_entropy_decoder pub; /* public fields */
-
-  /* These fields are loaded into local variables at start of each MCU.
-   * In case of suspension, we exit WITHOUT updating them.
-   */
-  bitread_perm_state bitstate;	/* Bit buffer at start of MCU */
-  savable_state saved;		/* Other state at start of MCU */
-
-  /* These fields are NOT loaded into local working state. */
-  unsigned int restarts_to_go;	/* MCUs left in this restart interval */
-
-  /* Pointers to derived tables (these workspaces have image lifespan) */
-  d_derived_tbl * dc_derived_tbls[NUM_HUFF_TBLS];
-  d_derived_tbl * ac_derived_tbls[NUM_HUFF_TBLS];
-
-  /* Precalculated info set up by start_pass for use in decode_mcu: */
-
-  /* Pointers to derived tables to be used for each block within an MCU */
-  d_derived_tbl * dc_cur_tbls[D_MAX_BLOCKS_IN_MCU];
-  d_derived_tbl * ac_cur_tbls[D_MAX_BLOCKS_IN_MCU];
-  /* Whether we care about the DC and AC coefficient values for each block */
-  boolean dc_needed[D_MAX_BLOCKS_IN_MCU];
-  boolean ac_needed[D_MAX_BLOCKS_IN_MCU];
-} huff_entropy_decoder;
-
-typedef huff_entropy_decoder * huff_entropy_ptr;
-
-
-/*
- * Initialize for a Huffman-compressed scan.
- */
-
-METHODDEF(void)
-start_pass_huff_decoder (j_decompress_ptr cinfo)
-{
-  huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
-  int ci, blkn, dctbl, actbl;
-  jpeg_component_info * compptr;
-
-  /* Check that the scan parameters Ss, Se, Ah/Al are OK for sequential JPEG.
-   * This ought to be an error condition, but we make it a warning because
-   * there are some baseline files out there with all zeroes in these bytes.
-   */
-  if (cinfo->Ss != 0 || cinfo->Se != DCTSIZE2-1 ||
-      cinfo->Ah != 0 || cinfo->Al != 0)
-    WARNMS(cinfo, JWRN_NOT_SETQUENTIAL);
-
-  for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-    compptr = cinfo->cur_comp_info[ci];
-    dctbl = compptr->dc_tbl_no;
-    actbl = compptr->ac_tbl_no;
-    /* Compute derived values for Huffman tables */
-    /* We may do this more than once for a table, but it's not expensive */
-    jpeg_make_d_derived_tbl(cinfo, TRUE, dctbl,
-			    & entropy->dc_derived_tbls[dctbl]);
-    jpeg_make_d_derived_tbl(cinfo, FALSE, actbl,
-			    & entropy->ac_derived_tbls[actbl]);
-    /* Initialize DC predictions to 0 */
-    entropy->saved.last_dc_val[ci] = 0;
-  }
-
-  /* Precalculate decoding info for each block in an MCU of this scan */
-  for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
-    ci = cinfo->MCU_membership[blkn];
-    compptr = cinfo->cur_comp_info[ci];
-    /* Precalculate which table to use for each block */
-    entropy->dc_cur_tbls[blkn] = entropy->dc_derived_tbls[compptr->dc_tbl_no];
-    entropy->ac_cur_tbls[blkn] = entropy->ac_derived_tbls[compptr->ac_tbl_no];
-    /* Decide whether we really care about the coefficient values */
-    if (compptr->component_needed) {
-      entropy->dc_needed[blkn] = TRUE;
-      /* we don't need the ACs if producing a 1/8th-size image */
-      entropy->ac_needed[blkn] = (compptr->DCT_scaled_size > 1);
-    } else {
-      entropy->dc_needed[blkn] = entropy->ac_needed[blkn] = FALSE;
-    }
-  }
-
-  /* Initialize bitread state variables */
-  entropy->bitstate.bits_left = 0;
-  entropy->bitstate.get_buffer = 0; /* unnecessary, but keeps Purify tquiet */
-  entropy->pub.insufficient_data = FALSE;
-
-  /* Initialize restart counter */
-  entropy->restarts_to_go = cinfo->restart_interval;
-}
-
-
-/*
- * Compute the derived values for a Huffman table.
- * This routine also performs some validation checks on the table.
- *
- * Note this is also used by jdphuff.c.
- */
-
-GLOBAL(void)
-jpeg_make_d_derived_tbl (j_decompress_ptr cinfo, boolean isDC, int tblno,
-			 d_derived_tbl ** pdtbl)
-{
-  JHUFF_TBL *htbl;
-  d_derived_tbl *dtbl;
-  int p, i, l, si, numsymbols;
-  int lookbits, ctr;
-  char huffsize[257];
-  unsigned int huffcode[257];
-  unsigned int code;
-
-  /* Note that huffsize[] and huffcode[] are filled in code-length order,
-   * paralleling the order of the symbols themselves in htbl->huffval[].
-   */
-
-  /* Find the input Huffman table */
-  if (tblno < 0 || tblno >= NUM_HUFF_TBLS)
-    ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tblno);
-  htbl =
-    isDC ? cinfo->dc_huff_tbl_ptrs[tblno] : cinfo->ac_huff_tbl_ptrs[tblno];
-  if (htbl == NULL)
-    ERREXIT1(cinfo, JERR_NO_HUFF_TABLE, tblno);
-
-  /* Allocate a workspace if we haven't already done so. */
-  if (*pdtbl == NULL)
-    *pdtbl = (d_derived_tbl *)
-      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				  SIZEOF(d_derived_tbl));
-  dtbl = *pdtbl;
-  dtbl->pub = htbl;		/* fill in back link */
-  
-  /* Figure C.1: make table of Huffman code length for each symbol */
-
-  p = 0;
-  for (l = 1; l <= 16; l++) {
-    i = (int) htbl->bits[l];
-    if (i < 0 || p + i > 256)	/* protect against table overrun */
-      ERREXIT(cinfo, JERR_BAD_HUFF_TABLE);
-    while (i--)
-      huffsize[p++] = (char) l;
-  }
-  huffsize[p] = 0;
-  numsymbols = p;
-  
-  /* Figure C.2: generate the codes themselves */
-  /* We also validate that the counts represent a legal Huffman code tree. */
-  
-  code = 0;
-  si = huffsize[0];
-  p = 0;
-  while (huffsize[p]) {
-    while (((int) huffsize[p]) == si) {
-      huffcode[p++] = code;
-      code++;
-    }
-    /* code is now 1 more than the last code used for codelength si; but
-     * it must still fit in si bits, since no code is allowed to be all ones.
-     */
-    if (((INT32) code) >= (((INT32) 1) << si))
-      ERREXIT(cinfo, JERR_BAD_HUFF_TABLE);
-    code <<= 1;
-    si++;
-  }
-
-  /* Figure F.15: generate decoding tables for bit-sequential decoding */
-
-  p = 0;
-  for (l = 1; l <= 16; l++) {
-    if (htbl->bits[l]) {
-      /* valoffset[l] = huffval[] index of 1st symbol of code length l,
-       * minus the minimum code of length l
-       */
-      dtbl->valoffset[l] = (INT32) p - (INT32) huffcode[p];
-      p += htbl->bits[l];
-      dtbl->maxcode[l] = huffcode[p-1]; /* maximum code of length l */
-    } else {
-      dtbl->maxcode[l] = -1;	/* -1 if no codes of this length */
-    }
-  }
-  dtbl->maxcode[17] = 0xFFFFFL; /* ensures jpeg_huff_decode terminates */
-
-  /* Compute lookahead tables to speed up decoding.
-   * First we set all the table entries to 0, indicating "too long";
-   * then we iterate through the Huffman codes that are short enough and
-   * fill in all the entries that correspond to bit sequences starting
-   * with that code.
-   */
-
-  MEMZERO(dtbl->look_nbits, SIZEOF(dtbl->look_nbits));
-
-  p = 0;
-  for (l = 1; l <= HUFF_LOOKAHEAD; l++) {
-    for (i = 1; i <= (int) htbl->bits[l]; i++, p++) {
-      /* l = current code's length, p = its index in huffcode[] & huffval[]. */
-      /* Generate left-justified code followed by all possible bit sequences */
-      lookbits = huffcode[p] << (HUFF_LOOKAHEAD-l);
-      for (ctr = 1 << (HUFF_LOOKAHEAD-l); ctr > 0; ctr--) {
-	dtbl->look_nbits[lookbits] = l;
-	dtbl->look_sym[lookbits] = htbl->huffval[p];
-	lookbits++;
-      }
-    }
-  }
-
-  /* Validate symbols as being reasonable.
-   * For AC tables, we make no check, but accept all byte values 0..255.
-   * For DC tables, we require the symbols to be in range 0..15.
-   * (Tighter bounds could be applied depending on the data depth and mode,
-   * but this is sufficient to ensure safe decoding.)
-   */
-  if (isDC) {
-    for (i = 0; i < numsymbols; i++) {
-      int sym = htbl->huffval[i];
-      if (sym < 0 || sym > 15)
-	ERREXIT(cinfo, JERR_BAD_HUFF_TABLE);
-    }
-  }
-}
-
-
-/*
- * Out-of-line code for bit fetching (shared with jdphuff.c).
- * See jdhuff.h for info about usage.
- * Note: current values of get_buffer and bits_left are passed as parameters,
- * but are returned in the corresponding fields of the state struct.
- *
- * On most machines MIN_GET_BITS should be 25 to allow the full 32-bit width
- * of get_buffer to be used.  (On machines with wider words, an even larger
- * buffer could be used.)  However, on some machines 32-bit shifts are
- * quite slow and take time proportional to the number of places shifted.
- * (This is true with most PC compilers, for instance.)  In this case it may
- * be a win to set MIN_GET_BITS to the minimum value of 15.  This reduces the
- * average shift distance at the cost of more calls to jpeg_fill_bit_buffer.
- */
-
-#ifdef SLOW_SHIFT_32
-#define MIN_GET_BITS  15	/* minimum allowable value */
-#else
-#define MIN_GET_BITS  (BIT_BUF_SIZE-7)
-#endif
-
-
-GLOBAL(boolean)
-jpeg_fill_bit_buffer (bitread_working_state * state,
-		      register bit_buf_type get_buffer, register int bits_left,
-		      int nbits)
-/* Load up the bit buffer to a depth of at least nbits */
-{
-  /* Copy heavily used state fields into locals (hopefully registers) */
-  register const JOCTET * next_input_byte = state->next_input_byte;
-  register size_t bytes_in_buffer = state->bytes_in_buffer;
-  j_decompress_ptr cinfo = state->cinfo;
-
-  /* Attempt to load at least MIN_GET_BITS bits into get_buffer. */
-  /* (It is assumed that no request will be for more than that many bits.) */
-  /* We fail to do so only if we hit a marker or are forced to suspend. */
-
-  if (cinfo->unread_marker == 0) {	/* cannot advance past a marker */
-    while (bits_left < MIN_GET_BITS) {
-      register int c;
-
-      /* Attempt to read a byte */
-      if (bytes_in_buffer == 0) {
-	if (! (*cinfo->src->fill_input_buffer) (cinfo))
-	  return FALSE;
-	next_input_byte = cinfo->src->next_input_byte;
-	bytes_in_buffer = cinfo->src->bytes_in_buffer;
-      }
-      bytes_in_buffer--;
-      c = GETJOCTET(*next_input_byte++);
-
-      /* If it's 0xFF, check and discard stuffed zero byte */
-      if (c == 0xFF) {
-	/* Loop here to discard any padding FF's on terminating marker,
-	 * so that we can save a valid unread_marker value.  NOTE: we will
-	 * accept multiple FF's followed by a 0 as meaning a single FF data
-	 * byte.  This data pattern is not valid according to the standard.
-	 */
-	do {
-	  if (bytes_in_buffer == 0) {
-	    if (! (*cinfo->src->fill_input_buffer) (cinfo))
-	      return FALSE;
-	    next_input_byte = cinfo->src->next_input_byte;
-	    bytes_in_buffer = cinfo->src->bytes_in_buffer;
-	  }
-	  bytes_in_buffer--;
-	  c = GETJOCTET(*next_input_byte++);
-	} while (c == 0xFF);
-
-	if (c == 0) {
-	  /* Found FF/00, which represents an FF data byte */
-	  c = 0xFF;
-	} else {
-	  /* Oops, it's actually a marker indicating end of compressed data.
-	   * Save the marker code for later use.
-	   * Fine point: it might appear that we should save the marker into
-	   * bitread working state, not straight into permanent state.  But
-	   * once we have hit a marker, we cannot need to suspend within the
-	   * current MCU, because we will read no more bytes from the data
-	   * source.  So it is OK to update permanent state right away.
-	   */
-	  cinfo->unread_marker = c;
-	  /* See if we need to insert some fake zero bits. */
-	  goto no_more_bytes;
-	}
-      }
-
-      /* OK, load c into get_buffer */
-      get_buffer = (get_buffer << 8) | c;
-      bits_left += 8;
-    } /* end while */
-  } else {
-  no_more_bytes:
-    /* We get here if we've read the marker that terminates the compressed
-     * data segment.  There should be enough bits in the buffer register
-     * to satisfy the request; if so, no problem.
-     */
-    if (nbits > bits_left) {
-      /* Uh-oh.  Report corrupted data to user and stuff zeroes into
-       * the data stream, so that we can produce some kind of image.
-       * We use a nonvolatile flag to ensure that only one warning message
-       * appears per data segment.
-       */
-      if (! cinfo->entropy->insufficient_data) {
-	WARNMS(cinfo, JWRN_HIT_MARKER);
-	cinfo->entropy->insufficient_data = TRUE;
-      }
-      /* Fill the buffer with zero bits */
-      get_buffer <<= MIN_GET_BITS - bits_left;
-      bits_left = MIN_GET_BITS;
-    }
-  }
-
-  /* Unload the local registers */
-  state->next_input_byte = next_input_byte;
-  state->bytes_in_buffer = bytes_in_buffer;
-  state->get_buffer = get_buffer;
-  state->bits_left = bits_left;
-
-  return TRUE;
-}
-
-
-/*
- * Out-of-line code for Huffman code decoding.
- * See jdhuff.h for info about usage.
- */
-
-GLOBAL(int)
-jpeg_huff_decode (bitread_working_state * state,
-		  register bit_buf_type get_buffer, register int bits_left,
-		  d_derived_tbl * htbl, int min_bits)
-{
-  register int l = min_bits;
-  register INT32 code;
-
-  /* HUFF_DECODE has determined that the code is at least min_bits */
-  /* bits long, so fetch that many bits in one swoop. */
-
-  CHECK_BIT_BUFFER(*state, l, return -1);
-  code = GET_BITS(l);
-
-  /* Collect the rest of the Huffman code one bit at a time. */
-  /* This is per Figure F.16 in the JPEG spec. */
-
-  while (code > htbl->maxcode[l]) {
-    code <<= 1;
-    CHECK_BIT_BUFFER(*state, 1, return -1);
-    code |= GET_BITS(1);
-    l++;
-  }
-
-  /* Unload the local registers */
-  state->get_buffer = get_buffer;
-  state->bits_left = bits_left;
-
-  /* With garbage input we may reach the sentinel value l = 17. */
-
-  if (l > 16) {
-    WARNMS(state->cinfo, JWRN_HUFF_BAD_CODE);
-    return 0;			/* fake a zero as the safest result */
-  }
-
-  return htbl->pub->huffval[ (int) (code + htbl->valoffset[l]) ];
-}
-
-
-/*
- * Figure F.12: extend sign bit.
- * On some machines, a shift and add will be faster than a table lookup.
- */
-
-#ifdef AVOID_TABLES
-
-#define HUFF_EXTEND(x,s)  ((x) < (1<<((s)-1)) ? (x) + (((-1)<<(s)) + 1) : (x))
-
-#else
-
-#define HUFF_EXTEND(x,s)  ((x) < extend_test[s] ? (x) + extend_offset[s] : (x))
-
-static const int extend_test[16] =   /* entry n is 2**(n-1) */
-  { 0, 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080,
-    0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000 };
-
-static const int extend_offset[16] = /* entry n is (-1 << n) + 1 */
-  { 0, ((-1)<<1) + 1, ((-1)<<2) + 1, ((-1)<<3) + 1, ((-1)<<4) + 1,
-    ((-1)<<5) + 1, ((-1)<<6) + 1, ((-1)<<7) + 1, ((-1)<<8) + 1,
-    ((-1)<<9) + 1, ((-1)<<10) + 1, ((-1)<<11) + 1, ((-1)<<12) + 1,
-    ((-1)<<13) + 1, ((-1)<<14) + 1, ((-1)<<15) + 1 };
-
-#endif /* AVOID_TABLES */
-
-
-/*
- * Check for a restart marker & resynchronize decoder.
- * Returns FALSE if must suspend.
- */
-
-LOCAL(boolean)
-process_restart (j_decompress_ptr cinfo)
-{
-  huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
-  int ci;
-
-  /* Throw away any unused bits remaining in bit buffer; */
-  /* include any full bytes in next_marker's count of discarded bytes */
-  cinfo->marker->discarded_bytes += entropy->bitstate.bits_left / 8;
-  entropy->bitstate.bits_left = 0;
-
-  /* Advance past the RSTn marker */
-  if (! (*cinfo->marker->read_restart_marker) (cinfo))
-    return FALSE;
-
-  /* Re-initialize DC predictions to 0 */
-  for (ci = 0; ci < cinfo->comps_in_scan; ci++)
-    entropy->saved.last_dc_val[ci] = 0;
-
-  /* Reset restart counter */
-  entropy->restarts_to_go = cinfo->restart_interval;
-
-  /* Reset out-of-data flag, unless read_restart_marker left us smack up
-   * against a marker.  In that case we will end up treating the next data
-   * segment as empty, and we can avoid producing bogus output pixels by
-   * leaving the flag set.
-   */
-  if (cinfo->unread_marker == 0)
-    entropy->pub.insufficient_data = FALSE;
-
-  return TRUE;
-}
-
-
-/*
- * Decode and return one MCU's worth of Huffman-compressed coefficients.
- * The coefficients are reordered from zigzag order into natural array order,
- * but are not dequantized.
- *
- * The i'th block of the MCU is stored into the block pointed to by
- * MCU_data[i].  WE ASSUME THIS AREA HAS BEEN ZEROED BY THE CALLER.
- * (Wholesale zeroing is usually a little faster than retail...)
- *
- * Returns FALSE if data source requested suspension.  In that case no
- * changes have been made to permanent state.  (Exception: some output
- * coefficients may already have been assigned.  This is harmless for
- * this module, since we'll just re-assign them on the next call.)
- */
-
-METHODDEF(boolean)
-decode_mcu (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
-{
-  huff_entropy_ptr entropy = (huff_entropy_ptr) cinfo->entropy;
-  int blkn;
-  BITREAD_STATE_VARS;
-  savable_state state;
-
-  /* Process restart marker if needed; may have to suspend */
-  if (cinfo->restart_interval) {
-    if (entropy->restarts_to_go == 0)
-      if (! process_restart(cinfo))
-	return FALSE;
-  }
-
-  /* If we've run out of data, just leave the MCU set to zeroes.
-   * This way, we return uniform gray for the remainder of the segment.
-   */
-  if (! entropy->pub.insufficient_data) {
-
-    /* Load up working state */
-    BITREAD_LOAD_STATE(cinfo,entropy->bitstate);
-    ASSIGN_STATE(state, entropy->saved);
-
-    /* Outer loop handles each block in the MCU */
-
-    for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
-      JBLOCKROW block = MCU_data[blkn];
-      d_derived_tbl * dctbl = entropy->dc_cur_tbls[blkn];
-      d_derived_tbl * actbl = entropy->ac_cur_tbls[blkn];
-      register int s, k, r;
-
-      /* Decode a single block's worth of coefficients */
-
-      /* Section F.2.2.1: decode the DC coefficient difference */
-      HUFF_DECODE(s, br_state, dctbl, return FALSE, label1);
-      if (s) {
-	CHECK_BIT_BUFFER(br_state, s, return FALSE);
-	r = GET_BITS(s);
-	s = HUFF_EXTEND(r, s);
-      }
-
-      if (entropy->dc_needed[blkn]) {
-	/* Convert DC difference to actual value, update last_dc_val */
-	int ci = cinfo->MCU_membership[blkn];
-	s += state.last_dc_val[ci];
-	state.last_dc_val[ci] = s;
-	/* Output the DC coefficient (assumes jpeg_natural_order[0] = 0) */
-	(*block)[0] = (JCOEF) s;
-      }
-
-      if (entropy->ac_needed[blkn]) {
-
-	/* Section F.2.2.2: decode the AC coefficients */
-	/* Since zeroes are skipped, output area must be cleared beforehand */
-	for (k = 1; k < DCTSIZE2; k++) {
-	  HUFF_DECODE(s, br_state, actbl, return FALSE, label2);
-      
-	  r = s >> 4;
-	  s &= 15;
-      
-	  if (s) {
-	    k += r;
-	    CHECK_BIT_BUFFER(br_state, s, return FALSE);
-	    r = GET_BITS(s);
-	    s = HUFF_EXTEND(r, s);
-	    /* Output coefficient in natural (dezigzagged) order.
-	     * Note: the extra entries in jpeg_natural_order[] will save us
-	     * if k >= DCTSIZE2, which could happen if the data is corrupted.
-	     */
-	    (*block)[jpeg_natural_order[k]] = (JCOEF) s;
-	  } else {
-	    if (r != 15)
-	      break;
-	    k += 15;
-	  }
-	}
-
-      } else {
-
-	/* Section F.2.2.2: decode the AC coefficients */
-	/* In this path we just discard the values */
-	for (k = 1; k < DCTSIZE2; k++) {
-	  HUFF_DECODE(s, br_state, actbl, return FALSE, label3);
-      
-	  r = s >> 4;
-	  s &= 15;
-      
-	  if (s) {
-	    k += r;
-	    CHECK_BIT_BUFFER(br_state, s, return FALSE);
-	    DROP_BITS(s);
-	  } else {
-	    if (r != 15)
-	      break;
-	    k += 15;
-	  }
-	}
-
-      }
-    }
-
-    /* Completed MCU, so update state */
-    BITREAD_SAVE_STATE(cinfo,entropy->bitstate);
-    ASSIGN_STATE(entropy->saved, state);
-  }
-
-  /* Account for restart interval (no-op if not using restarts) */
-  entropy->restarts_to_go--;
-
-  return TRUE;
-}
-
-
-/*
- * Module initialization routine for Huffman entropy decoding.
- */
-
-GLOBAL(void)
-jinit_huff_decoder (j_decompress_ptr cinfo)
-{
-  huff_entropy_ptr entropy;
-  int i;
-
-  entropy = (huff_entropy_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(huff_entropy_decoder));
-  cinfo->entropy = (struct jpeg_entropy_decoder *) entropy;
-  entropy->pub.start_pass = start_pass_huff_decoder;
-  entropy->pub.decode_mcu = decode_mcu;
-
-  /* Mark tables unallocated */
-  for (i = 0; i < NUM_HUFF_TBLS; i++) {
-    entropy->dc_derived_tbls[i] = entropy->ac_derived_tbls[i] = NULL;
-  }
-}
diff --git a/src/3rdparty/libjpeg/jdhuff.h b/src/3rdparty/libjpeg/jdhuff.h
deleted file mode 100644
index ae19b6caf..000000000
--- a/src/3rdparty/libjpeg/jdhuff.h
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
- * jdhuff.h
- *
- * Copyright (C) 1991-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains declarations for Huffman entropy decoding routines
- * that are shared between the sequential decoder (jdhuff.c) and the
- * progressive decoder (jdphuff.c).  No other modules need to see these.
- */
-
-/* Short forms of external names for systems with brain-damaged linkers. */
-
-#ifdef NEED_SHORT_EXTERNAL_NAMES
-#define jpeg_make_d_derived_tbl	jMkDDerived
-#define jpeg_fill_bit_buffer	jFilBitBuf
-#define jpeg_huff_decode	jHufDecode
-#endif /* NEED_SHORT_EXTERNAL_NAMES */
-
-
-/* Derived data constructed for each Huffman table */
-
-#define HUFF_LOOKAHEAD	8	/* # of bits of lookahead */
-
-typedef struct {
-  /* Basic tables: (element [0] of each array is unused) */
-  INT32 maxcode[18];		/* largest code of length k (-1 if none) */
-  /* (maxcode[17] is a sentinel to ensure jpeg_huff_decode terminates) */
-  INT32 valoffset[17];		/* huffval[] offset for codes of length k */
-  /* valoffset[k] = huffval[] index of 1st symbol of code length k, less
-   * the smallest code of length k; so given a code of length k, the
-   * corresponding symbol is huffval[code + valoffset[k]]
-   */
-
-  /* Link to public Huffman table (needed only in jpeg_huff_decode) */
-  JHUFF_TBL *pub;
-
-  /* Lookahead tables: indexed by the next HUFF_LOOKAHEAD bits of
-   * the input data stream.  If the next Huffman code is no more
-   * than HUFF_LOOKAHEAD bits long, we can obtain its length and
-   * the corresponding symbol directly from these tables.
-   */
-  int look_nbits[1<<HUFF_LOOKAHEAD]; /* # bits, or 0 if too long */
-  UINT8 look_sym[1<<HUFF_LOOKAHEAD]; /* symbol, or unused */
-} d_derived_tbl;
-
-/* Expand a Huffman table definition into the derived format */
-EXTERN(void) jpeg_make_d_derived_tbl
-	JPP((j_decompress_ptr cinfo, boolean isDC, int tblno,
-	     d_derived_tbl ** pdtbl));
-
-
-/*
- * Fetching the next N bits from the input stream is a time-critical operation
- * for the Huffman decoders.  We implement it with a combination of inline
- * macros and out-of-line subroutines.  Note that N (the number of bits
- * demanded at one time) never exceeds 15 for JPEG use.
- *
- * We read source bytes into get_buffer and dole out bits as needed.
- * If get_buffer already contains enough bits, they are fetched in-line
- * by the macros CHECK_BIT_BUFFER and GET_BITS.  When there aren't enough
- * bits, jpeg_fill_bit_buffer is called; it will attempt to fill get_buffer
- * as full as possible (not just to the number of bits needed; this
- * prefetching reduces the overhead cost of calling jpeg_fill_bit_buffer).
- * Note that jpeg_fill_bit_buffer may return FALSE to indicate suspension.
- * On TRUE return, jpeg_fill_bit_buffer guarantees that get_buffer contains
- * at least the requested number of bits --- dummy zeroes are inserted if
- * necessary.
- */
-
-typedef INT32 bit_buf_type;	/* type of bit-extraction buffer */
-#define BIT_BUF_SIZE  32	/* size of buffer in bits */
-
-/* If long is > 32 bits on your machine, and shifting/masking longs is
- * reasonably fast, making bit_buf_type be long and setting BIT_BUF_SIZE
- * appropriately should be a win.  Unfortunately we can't define the size
- * with something like  #define BIT_BUF_SIZE (sizeof(bit_buf_type)*8)
- * because not all machines measure sizeof in 8-bit bytes.
- */
-
-typedef struct {		/* Bitreading state saved across MCUs */
-  bit_buf_type get_buffer;	/* current bit-extraction buffer */
-  int bits_left;		/* # of unused bits in it */
-} bitread_perm_state;
-
-typedef struct {		/* Bitreading working state within an MCU */
-  /* Current data source location */
-  /* We need a copy, rather than munging the original, in case of suspension */
-  const JOCTET * next_input_byte; /* => next byte to read from source */
-  size_t bytes_in_buffer;	/* # of bytes remaining in source buffer */
-  /* Bit input buffer --- note these values are kept in register variables,
-   * not in this struct, inside the inner loops.
-   */
-  bit_buf_type get_buffer;	/* current bit-extraction buffer */
-  int bits_left;		/* # of unused bits in it */
-  /* Pointer needed by jpeg_fill_bit_buffer. */
-  j_decompress_ptr cinfo;	/* back link to decompress master record */
-} bitread_working_state;
-
-/* Macros to declare and load/save bitread local variables. */
-#define BITREAD_STATE_VARS  \
-	register bit_buf_type get_buffer;  \
-	register int bits_left;  \
-	bitread_working_state br_state
-
-#define BITREAD_LOAD_STATE(cinfop,permstate)  \
-	br_state.cinfo = cinfop; \
-	br_state.next_input_byte = cinfop->src->next_input_byte; \
-	br_state.bytes_in_buffer = cinfop->src->bytes_in_buffer; \
-	get_buffer = permstate.get_buffer; \
-	bits_left = permstate.bits_left;
-
-#define BITREAD_SAVE_STATE(cinfop,permstate)  \
-	cinfop->src->next_input_byte = br_state.next_input_byte; \
-	cinfop->src->bytes_in_buffer = br_state.bytes_in_buffer; \
-	permstate.get_buffer = get_buffer; \
-	permstate.bits_left = bits_left
-
-/*
- * These macros provide the in-line portion of bit fetching.
- * Use CHECK_BIT_BUFFER to ensure there are N bits in get_buffer
- * before using GET_BITS, PEEK_BITS, or DROP_BITS.
- * The variables get_buffer and bits_left are assumed to be locals,
- * but the state struct might not be (jpeg_huff_decode needs this).
- *	CHECK_BIT_BUFFER(state,n,action);
- *		Ensure there are N bits in get_buffer; if suspend, take action.
- *      val = GET_BITS(n);
- *		Fetch next N bits.
- *      val = PEEK_BITS(n);
- *		Fetch next N bits without removing them from the buffer.
- *	DROP_BITS(n);
- *		Discard next N bits.
- * The value N should be a simple variable, not an expression, because it
- * is evaluated multiple times.
- */
-
-#define CHECK_BIT_BUFFER(state,nbits,action) \
-	{ if (bits_left < (nbits)) {  \
-	    if (! jpeg_fill_bit_buffer(&(state),get_buffer,bits_left,nbits))  \
-	      { action; }  \
-	    get_buffer = (state).get_buffer; bits_left = (state).bits_left; } }
-
-#define GET_BITS(nbits) \
-	(((int) (get_buffer >> (bits_left -= (nbits)))) & ((1<<(nbits))-1))
-
-#define PEEK_BITS(nbits) \
-	(((int) (get_buffer >> (bits_left -  (nbits)))) & ((1<<(nbits))-1))
-
-#define DROP_BITS(nbits) \
-	(bits_left -= (nbits))
-
-/* Load up the bit buffer to a depth of at least nbits */
-EXTERN(boolean) jpeg_fill_bit_buffer
-	JPP((bitread_working_state * state, register bit_buf_type get_buffer,
-	     register int bits_left, int nbits));
-
-
-/*
- * Code for extracting next Huffman-coded symbol from input bit stream.
- * Again, this is time-critical and we make the main paths be macros.
- *
- * We use a lookahead table to process codes of up to HUFF_LOOKAHEAD bits
- * without looping.  Usually, more than 95% of the Huffman codes will be 8
- * or fewer bits long.  The few overlength codes are handled with a loop,
- * which need not be inline code.
- *
- * Notes about the HUFF_DECODE macro:
- * 1. Near the end of the data segment, we may fail to get enough bits
- *    for a lookahead.  In that case, we do it the hard way.
- * 2. If the lookahead table contains no entry, the next code must be
- *    more than HUFF_LOOKAHEAD bits long.
- * 3. jpeg_huff_decode returns -1 if forced to suspend.
- */
-
-#define HUFF_DECODE(result,state,htbl,failaction,slowlabel) \
-{ register int nb, look; \
-  if (bits_left < HUFF_LOOKAHEAD) { \
-    if (! jpeg_fill_bit_buffer(&state,get_buffer,bits_left, 0)) {failaction;} \
-    get_buffer = state.get_buffer; bits_left = state.bits_left; \
-    if (bits_left < HUFF_LOOKAHEAD) { \
-      nb = 1; goto slowlabel; \
-    } \
-  } \
-  look = PEEK_BITS(HUFF_LOOKAHEAD); \
-  if ((nb = htbl->look_nbits[look]) != 0) { \
-    DROP_BITS(nb); \
-    result = htbl->look_sym[look]; \
-  } else { \
-    nb = HUFF_LOOKAHEAD+1; \
-slowlabel: \
-    if ((result=jpeg_huff_decode(&state,get_buffer,bits_left,htbl,nb)) < 0) \
-	{ failaction; } \
-    get_buffer = state.get_buffer; bits_left = state.bits_left; \
-  } \
-}
-
-/* Out-of-line case for Huffman code fetching */
-EXTERN(int) jpeg_huff_decode
-	JPP((bitread_working_state * state, register bit_buf_type get_buffer,
-	     register int bits_left, d_derived_tbl * htbl, int min_bits));
diff --git a/src/3rdparty/libjpeg/jdinput.c b/src/3rdparty/libjpeg/jdinput.c
deleted file mode 100644
index e394418c5..000000000
--- a/src/3rdparty/libjpeg/jdinput.c
+++ /dev/null
@@ -1,381 +0,0 @@
-/*
- * jdinput.c
- *
- * Copyright (C) 1991-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains input control logic for the JPEG decompressor.
- * These routines are concerned with controlling the decompressor's input
- * processing (marker reading and coefficient decoding).  The actual input
- * reading is done in jdmarker.c, jdhuff.c, and jdphuff.c.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/* Private state */
-
-typedef struct {
-  struct jpeg_input_controller pub; /* public fields */
-
-  boolean inheaders;		/* TRUE until first SOS is reached */
-} my_input_controller;
-
-typedef my_input_controller * my_inputctl_ptr;
-
-
-/* Forward declarations */
-METHODDEF(int) consume_markers JPP((j_decompress_ptr cinfo));
-
-
-/*
- * Routines to calculate various quantities related to the size of the image.
- */
-
-LOCAL(void)
-initial_setup (j_decompress_ptr cinfo)
-/* Called once, when first SOS marker is reached */
-{
-  int ci;
-  jpeg_component_info *compptr;
-
-  /* Make sure image isn't bigger than I can handle */
-  if ((long) cinfo->image_height > (long) JPEG_MAX_DIMENSION ||
-      (long) cinfo->image_width > (long) JPEG_MAX_DIMENSION)
-    ERREXIT1(cinfo, JERR_IMAGE_TOO_BIG, (unsigned int) JPEG_MAX_DIMENSION);
-
-  /* For now, precision must match compiled-in value... */
-  if (cinfo->data_precision != BITS_IN_JSAMPLE)
-    ERREXIT1(cinfo, JERR_BAD_PRECISION, cinfo->data_precision);
-
-  /* Check that number of components won't exceed internal array sizes */
-  if (cinfo->num_components > MAX_COMPONENTS)
-    ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->num_components,
-	     MAX_COMPONENTS);
-
-  /* Compute maximum sampling factors; check factor validity */
-  cinfo->max_h_samp_factor = 1;
-  cinfo->max_v_samp_factor = 1;
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    if (compptr->h_samp_factor<=0 || compptr->h_samp_factor>MAX_SAMP_FACTOR ||
-	compptr->v_samp_factor<=0 || compptr->v_samp_factor>MAX_SAMP_FACTOR)
-      ERREXIT(cinfo, JERR_BAD_SAMPLING);
-    cinfo->max_h_samp_factor = MAX(cinfo->max_h_samp_factor,
-				   compptr->h_samp_factor);
-    cinfo->max_v_samp_factor = MAX(cinfo->max_v_samp_factor,
-				   compptr->v_samp_factor);
-  }
-
-  /* We initialize DCT_scaled_size and min_DCT_scaled_size to DCTSIZE.
-   * In the full decompressor, this will be overridden by jdmaster.c;
-   * but in the transcoder, jdmaster.c is not used, so we must do it here.
-   */
-  cinfo->min_DCT_scaled_size = DCTSIZE;
-
-  /* Compute dimensions of components */
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    compptr->DCT_scaled_size = DCTSIZE;
-    /* Size in DCT blocks */
-    compptr->width_in_blocks = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * (long) compptr->h_samp_factor,
-		    (long) (cinfo->max_h_samp_factor * DCTSIZE));
-    compptr->height_in_blocks = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * (long) compptr->v_samp_factor,
-		    (long) (cinfo->max_v_samp_factor * DCTSIZE));
-    /* downsampled_width and downsampled_height will also be overridden by
-     * jdmaster.c if we are doing full decompression.  The transcoder library
-     * doesn't use these values, but the calling application might.
-     */
-    /* Size in samples */
-    compptr->downsampled_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width * (long) compptr->h_samp_factor,
-		    (long) cinfo->max_h_samp_factor);
-    compptr->downsampled_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height * (long) compptr->v_samp_factor,
-		    (long) cinfo->max_v_samp_factor);
-    /* Mark component needed, until color conversion says otherwise */
-    compptr->component_needed = TRUE;
-    /* Mark no quantization table yet saved for component */
-    compptr->quant_table = NULL;
-  }
-
-  /* Compute number of fully interleaved MCU rows. */
-  cinfo->total_iMCU_rows = (JDIMENSION)
-    jdiv_round_up((long) cinfo->image_height,
-		  (long) (cinfo->max_v_samp_factor*DCTSIZE));
-
-  /* Decide whether file contains multiple scans */
-  if (cinfo->comps_in_scan < cinfo->num_components || cinfo->progressive_mode)
-    cinfo->inputctl->has_multiple_scans = TRUE;
-  else
-    cinfo->inputctl->has_multiple_scans = FALSE;
-}
-
-
-LOCAL(void)
-per_scan_setup (j_decompress_ptr cinfo)
-/* Do computations that are needed before processing a JPEG scan */
-/* cinfo->comps_in_scan and cinfo->cur_comp_info[] were set from SOS marker */
-{
-  int ci, mcublks, tmp;
-  jpeg_component_info *compptr;
-  
-  if (cinfo->comps_in_scan == 1) {
-    
-    /* Noninterleaved (single-component) scan */
-    compptr = cinfo->cur_comp_info[0];
-    
-    /* Overall image size in MCUs */
-    cinfo->MCUs_per_row = compptr->width_in_blocks;
-    cinfo->MCU_rows_in_scan = compptr->height_in_blocks;
-    
-    /* For noninterleaved scan, always one block per MCU */
-    compptr->MCU_width = 1;
-    compptr->MCU_height = 1;
-    compptr->MCU_blocks = 1;
-    compptr->MCU_sample_width = compptr->DCT_scaled_size;
-    compptr->last_col_width = 1;
-    /* For noninterleaved scans, it is convenient to define last_row_height
-     * as the number of block rows present in the last iMCU row.
-     */
-    tmp = (int) (compptr->height_in_blocks % compptr->v_samp_factor);
-    if (tmp == 0) tmp = compptr->v_samp_factor;
-    compptr->last_row_height = tmp;
-    
-    /* Prepare array describing MCU composition */
-    cinfo->blocks_in_MCU = 1;
-    cinfo->MCU_membership[0] = 0;
-    
-  } else {
-    
-    /* Interleaved (multi-component) scan */
-    if (cinfo->comps_in_scan <= 0 || cinfo->comps_in_scan > MAX_COMPS_IN_SCAN)
-      ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->comps_in_scan,
-	       MAX_COMPS_IN_SCAN);
-    
-    /* Overall image size in MCUs */
-    cinfo->MCUs_per_row = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width,
-		    (long) (cinfo->max_h_samp_factor*DCTSIZE));
-    cinfo->MCU_rows_in_scan = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height,
-		    (long) (cinfo->max_v_samp_factor*DCTSIZE));
-    
-    cinfo->blocks_in_MCU = 0;
-    
-    for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-      compptr = cinfo->cur_comp_info[ci];
-      /* Sampling factors give # of blocks of component in each MCU */
-      compptr->MCU_width = compptr->h_samp_factor;
-      compptr->MCU_height = compptr->v_samp_factor;
-      compptr->MCU_blocks = compptr->MCU_width * compptr->MCU_height;
-      compptr->MCU_sample_width = compptr->MCU_width * compptr->DCT_scaled_size;
-      /* Figure number of non-dummy blocks in last MCU column & row */
-      tmp = (int) (compptr->width_in_blocks % compptr->MCU_width);
-      if (tmp == 0) tmp = compptr->MCU_width;
-      compptr->last_col_width = tmp;
-      tmp = (int) (compptr->height_in_blocks % compptr->MCU_height);
-      if (tmp == 0) tmp = compptr->MCU_height;
-      compptr->last_row_height = tmp;
-      /* Prepare array describing MCU composition */
-      mcublks = compptr->MCU_blocks;
-      if (cinfo->blocks_in_MCU + mcublks > D_MAX_BLOCKS_IN_MCU)
-	ERREXIT(cinfo, JERR_BAD_MCU_SIZE);
-      while (mcublks-- > 0) {
-	cinfo->MCU_membership[cinfo->blocks_in_MCU++] = ci;
-      }
-    }
-    
-  }
-}
-
-
-/*
- * Save away a copy of the Q-table referenced by each component present
- * in the current scan, unless already saved during a prior scan.
- *
- * In a multiple-scan JPEG file, the encoder could assign different components
- * the same Q-table slot number, but change table definitions between scans
- * so that each component uses a different Q-table.  (The IJG encoder is not
- * currently capable of doing this, but other encoders might.)  Since we want
- * to be able to dequantize all the components at the end of the file, this
- * means that we have to save away the table actually used for each component.
- * We do this by copying the table at the start of the first scan containing
- * the component.
- * The JPEG spec prohibits the encoder from changing the contents of a Q-table
- * slot between scans of a component using that slot.  If the encoder does so
- * anyway, this decoder will simply use the Q-table values that were current
- * at the start of the first scan for the component.
- *
- * The decompressor output side looks only at the saved quant tables,
- * not at the current Q-table slots.
- */
-
-LOCAL(void)
-latch_quant_tables (j_decompress_ptr cinfo)
-{
-  int ci, qtblno;
-  jpeg_component_info *compptr;
-  JTQUANT_TBL * qtbl;
-
-  for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-    compptr = cinfo->cur_comp_info[ci];
-    /* No work if we already saved Q-table for this component */
-    if (compptr->quant_table != NULL)
-      continue;
-    /* Make sure specified quantization table is present */
-    qtblno = compptr->quant_tbl_no;
-    if (qtblno < 0 || qtblno >= NUM_QUANT_TBLS ||
-	cinfo->quant_tbl_ptrs[qtblno] == NULL)
-      ERREXIT1(cinfo, JERR_NO_QUANT_TABLE, qtblno);
-    /* OK, save away the quantization table */
-    qtbl = (JTQUANT_TBL *)
-      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				  SIZEOF(JTQUANT_TBL));
-    MEMCOPY(qtbl, cinfo->quant_tbl_ptrs[qtblno], SIZEOF(JTQUANT_TBL));
-    compptr->quant_table = qtbl;
-  }
-}
-
-
-/*
- * Initialize the input modules to read a scan of compressed data.
- * The first call to this is done by jdmaster.c after initializing
- * the entire decompressor (during jpeg_start_decompress).
- * Subsequent calls come from consume_markers, below.
- */
-
-METHODDEF(void)
-start_input_pass (j_decompress_ptr cinfo)
-{
-  per_scan_setup(cinfo);
-  latch_quant_tables(cinfo);
-  (*cinfo->entropy->start_pass) (cinfo);
-  (*cinfo->coef->start_input_pass) (cinfo);
-  cinfo->inputctl->consume_input = cinfo->coef->consume_data;
-}
-
-
-/*
- * Finish up after inputting a compressed-data scan.
- * This is called by the coefficient controller after it's read all
- * the expected data of the scan.
- */
-
-METHODDEF(void)
-finish_input_pass (j_decompress_ptr cinfo)
-{
-  cinfo->inputctl->consume_input = consume_markers;
-}
-
-
-/*
- * Read JPEG markers before, between, or after compressed-data scans.
- * Change state as necessary when a new scan is reached.
- * Return value is JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI.
- *
- * The consume_input method pointer points either here or to the
- * coefficient controller's consume_data routine, depending on whether
- * we are reading a compressed data segment or inter-segment markers.
- */
-
-METHODDEF(int)
-consume_markers (j_decompress_ptr cinfo)
-{
-  my_inputctl_ptr inputctl = (my_inputctl_ptr) cinfo->inputctl;
-  int val;
-
-  if (inputctl->pub.eoi_reached) /* After hitting EOI, read no further */
-    return JPEG_REACHED_EOI;
-
-  val = (*cinfo->marker->read_markers) (cinfo);
-
-  switch (val) {
-  case JPEG_REACHED_SOS:	/* Found SOS */
-    if (inputctl->inheaders) {	/* 1st SOS */
-      initial_setup(cinfo);
-      inputctl->inheaders = FALSE;
-      /* Note: start_input_pass must be called by jdmaster.c
-       * before any more input can be consumed.  jdapimin.c is
-       * responsible for enforcing this sequencing.
-       */
-    } else {			/* 2nd or later SOS marker */
-      if (! inputctl->pub.has_multiple_scans)
-	ERREXIT(cinfo, JERR_EOI_EXPECTED); /* Oops, I wasn't expecting this! */
-      start_input_pass(cinfo);
-    }
-    break;
-  case JPEG_REACHED_EOI:	/* Found EOI */
-    inputctl->pub.eoi_reached = TRUE;
-    if (inputctl->inheaders) {	/* Tables-only datastream, apparently */
-      if (cinfo->marker->saw_SOF)
-	ERREXIT(cinfo, JERR_SOF_NO_SOS);
-    } else {
-      /* Prevent infinite loop in coef ctlr's decompress_data routine
-       * if user set output_scan_number larger than number of scans.
-       */
-      if (cinfo->output_scan_number > cinfo->input_scan_number)
-	cinfo->output_scan_number = cinfo->input_scan_number;
-    }
-    break;
-  case JPEG_SUSPENDED:
-    break;
-  }
-
-  return val;
-}
-
-
-/*
- * Reset state to begin a fresh datastream.
- */
-
-METHODDEF(void)
-reset_input_controller (j_decompress_ptr cinfo)
-{
-  my_inputctl_ptr inputctl = (my_inputctl_ptr) cinfo->inputctl;
-
-  inputctl->pub.consume_input = consume_markers;
-  inputctl->pub.has_multiple_scans = FALSE; /* "unknown" would be better */
-  inputctl->pub.eoi_reached = FALSE;
-  inputctl->inheaders = TRUE;
-  /* Reset other modules */
-  (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo);
-  (*cinfo->marker->reset_marker_reader) (cinfo);
-  /* Reset progression state -- would be cleaner if entropy decoder did this */
-  cinfo->coef_bits = NULL;
-}
-
-
-/*
- * Initialize the input controller module.
- * This is called only once, when the decompression object is created.
- */
-
-GLOBAL(void)
-jinit_input_controller (j_decompress_ptr cinfo)
-{
-  my_inputctl_ptr inputctl;
-
-  /* Create subobject in permanent pool */
-  inputctl = (my_inputctl_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
-				SIZEOF(my_input_controller));
-  cinfo->inputctl = (struct jpeg_input_controller *) inputctl;
-  /* Initialize method pointers */
-  inputctl->pub.consume_input = consume_markers;
-  inputctl->pub.reset_input_controller = reset_input_controller;
-  inputctl->pub.start_input_pass = start_input_pass;
-  inputctl->pub.finish_input_pass = finish_input_pass;
-  /* Initialize state: can't use reset_input_controller since we don't
-   * want to try to reset other modules yet.
-   */
-  inputctl->pub.has_multiple_scans = FALSE; /* "unknown" would be better */
-  inputctl->pub.eoi_reached = FALSE;
-  inputctl->inheaders = TRUE;
-}
diff --git a/src/3rdparty/libjpeg/jdmainct.c b/src/3rdparty/libjpeg/jdmainct.c
deleted file mode 100644
index c9a48fe11..000000000
--- a/src/3rdparty/libjpeg/jdmainct.c
+++ /dev/null
@@ -1,512 +0,0 @@
-/*
- * jdmainct.c
- *
- * Copyright (C) 1994-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains the main buffer controller for decompression.
- * The main buffer lies between the JPEG decompressor proper and the
- * post-processor; it holds downsampled data in the JPEG colorspace.
- *
- * Note that this code is bypassed in raw-data mode, since the application
- * supplies the equivalent of the main buffer in that case.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/*
- * In the current system design, the main buffer need never be a full-image
- * buffer; any full-height buffers will be found inside the coefficient or
- * postprocessing controllers.  Nonetheless, the main controller is not
- * trivial.  Its responsibility is to provide context rows for upsampling/
- * rescaling, and doing this in an efficient fashion is a bit tricky.
- *
- * Postprocessor input data is counted in "row groups".  A row group
- * is defined to be (v_samp_factor * DCT_scaled_size / min_DCT_scaled_size)
- * sample rows of each component.  (We require DCT_scaled_size values to be
- * chosen such that these numbers are integers.  In practice DCT_scaled_size
- * values will likely be powers of two, so we actually have the stronger
- * condition that DCT_scaled_size / min_DCT_scaled_size is an integer.)
- * Upsampling will typically produce max_v_samp_factor pixel rows from each
- * row group (times any additional scale factor that the upsampler is
- * applying).
- *
- * The coefficient controller will deliver data to us one iMCU row at a time;
- * each iMCU row contains v_samp_factor * DCT_scaled_size sample rows, or
- * exactly min_DCT_scaled_size row groups.  (This amount of data corresponds
- * to one row of MCUs when the image is fully interleaved.)  Note that the
- * number of sample rows varies across components, but the number of row
- * groups does not.  Some garbage sample rows may be included in the last iMCU
- * row at the bottom of the image.
- *
- * Depending on the vertical scaling algorithm used, the upsampler may need
- * access to the sample row(s) above and below its current input row group.
- * The upsampler is required to set need_context_rows TRUE at global selection
- * time if so.  When need_context_rows is FALSE, this controller can simply
- * obtain one iMCU row at a time from the coefficient controller and dole it
- * out as row groups to the postprocessor.
- *
- * When need_context_rows is TRUE, this controller guarantees that the buffer
- * passed to postprocessing contains at least one row group's worth of samples
- * above and below the row group(s) being processed.  Note that the context
- * rows "above" the first passed row group appear at negative row offsets in
- * the passed buffer.  At the top and bottom of the image, the required
- * context rows are manufactured by duplicating the first or last real sample
- * row; this avoids having special cases in the upsampling inner loops.
- *
- * The amount of context is fixed at one row group just because that's a
- * convenient number for this controller to work with.  The existing
- * upsamplers really only need one sample row of context.  An upsampler
- * supporting arbitrary output rescaling might wish for more than one row
- * group of context when shrinking the image; tough, we don't handle that.
- * (This is justified by the assumption that downsizing will be handled mostly
- * by adjusting the DCT_scaled_size values, so that the actual scale factor at
- * the upsample step needn't be much less than one.)
- *
- * To provide the desired context, we have to retain the last two row groups
- * of one iMCU row while reading in the next iMCU row.  (The last row group
- * can't be processed until we have another row group for its below-context,
- * and so we have to save the next-to-last group too for its above-context.)
- * We could do this most simply by copying data around in our buffer, but
- * that'd be very slow.  We can avoid copying any data by creating a rather
- * strange pointer structure.  Here's how it works.  We allocate a workspace
- * consisting of M+2 row groups (where M = min_DCT_scaled_size is the number
- * of row groups per iMCU row).  We create two sets of redundant pointers to
- * the workspace.  Labeling the physical row groups 0 to M+1, the synthesized
- * pointer lists look like this:
- *                   M+1                          M-1
- * master pointer --> 0         master pointer --> 0
- *                    1                            1
- *                   ...                          ...
- *                   M-3                          M-3
- *                   M-2                           M
- *                   M-1                          M+1
- *                    M                           M-2
- *                   M+1                          M-1
- *                    0                            0
- * We read alternate iMCU rows using each master pointer; thus the last two
- * row groups of the previous iMCU row remain un-overwritten in the workspace.
- * The pointer lists are set up so that the required context rows appear to
- * be adjacent to the proper places when we pass the pointer lists to the
- * upsampler.
- *
- * The above pictures describe the normal state of the pointer lists.
- * At top and bottom of the image, we diddle the pointer lists to duplicate
- * the first or last sample row as necessary (this is cheaper than copying
- * sample rows around).
- *
- * This scheme breaks down if M < 2, ie, min_DCT_scaled_size is 1.  In that
- * situation each iMCU row provides only one row group so the buffering logic
- * must be different (eg, we must read two iMCU rows before we can emit the
- * first row group).  For now, we simply do not support providing context
- * rows when min_DCT_scaled_size is 1.  That combination seems unlikely to
- * be worth providing --- if someone wants a 1/8th-size preview, they probably
- * want it tquick and dirty, so a context-free upsampler is sufficient.
- */
-
-
-/* Private buffer controller object */
-
-typedef struct {
-  struct jpeg_d_main_controller pub; /* public fields */
-
-  /* Pointer to allocated workspace (M or M+2 row groups). */
-  JSAMPARRAY buffer[MAX_COMPONENTS];
-
-  boolean buffer_full;		/* Have we gotten an iMCU row from decoder? */
-  JDIMENSION rowgroup_ctr;	/* counts row groups output to postprocessor */
-
-  /* Remaining fields are only used in the context case. */
-
-  /* These are the master pointers to the funny-order pointer lists. */
-  JSAMPIMAGE xbuffer[2];	/* pointers to weird pointer lists */
-
-  int whichptr;			/* indicates which pointer set is now in use */
-  int context_state;		/* process_data state machine status */
-  JDIMENSION rowgroups_avail;	/* row groups available to postprocessor */
-  JDIMENSION iMCU_row_ctr;	/* counts iMCU rows to detect image top/bot */
-} my_main_controller;
-
-typedef my_main_controller * my_main_ptr;
-
-/* context_state values: */
-#define CTX_PREPARE_FOR_IMCU	0	/* need to prepare for MCU row */
-#define CTX_PROCESS_IMCU	1	/* feeding iMCU to postprocessor */
-#define CTX_POSTPONED_ROW	2	/* feeding postponed row group */
-
-
-/* Forward declarations */
-METHODDEF(void) process_data_simple_main
-	JPP((j_decompress_ptr cinfo, JSAMPARRAY output_buf,
-	     JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail));
-METHODDEF(void) process_data_context_main
-	JPP((j_decompress_ptr cinfo, JSAMPARRAY output_buf,
-	     JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail));
-#ifdef TQUANT_2PASS_SUPPORTED
-METHODDEF(void) process_data_crank_post
-	JPP((j_decompress_ptr cinfo, JSAMPARRAY output_buf,
-	     JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail));
-#endif
-
-
-LOCAL(void)
-alloc_funny_pointers (j_decompress_ptr cinfo)
-/* Allocate space for the funny pointer lists.
- * This is done only once, not once per pass.
- */
-{
-  my_main_ptr main = (my_main_ptr) cinfo->main;
-  int ci, rgroup;
-  int M = cinfo->min_DCT_scaled_size;
-  jpeg_component_info *compptr;
-  JSAMPARRAY xbuf;
-
-  /* Get top-level space for component array pointers.
-   * We alloc both arrays with one call to save a few cycles.
-   */
-  main->xbuffer[0] = (JSAMPIMAGE)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				cinfo->num_components * 2 * SIZEOF(JSAMPARRAY));
-  main->xbuffer[1] = main->xbuffer[0] + cinfo->num_components;
-
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    rgroup = (compptr->v_samp_factor * compptr->DCT_scaled_size) /
-      cinfo->min_DCT_scaled_size; /* height of a row group of component */
-    /* Get space for pointer lists --- M+4 row groups in each list.
-     * We alloc both pointer lists with one call to save a few cycles.
-     */
-    xbuf = (JSAMPARRAY)
-      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				  2 * (rgroup * (M + 4)) * SIZEOF(JSAMPROW));
-    xbuf += rgroup;		/* want one row group at negative offsets */
-    main->xbuffer[0][ci] = xbuf;
-    xbuf += rgroup * (M + 4);
-    main->xbuffer[1][ci] = xbuf;
-  }
-}
-
-
-LOCAL(void)
-make_funny_pointers (j_decompress_ptr cinfo)
-/* Create the funny pointer lists discussed in the comments above.
- * The actual workspace is already allocated (in main->buffer),
- * and the space for the pointer lists is allocated too.
- * This routine just fills in the curiously ordered lists.
- * This will be repeated at the beginning of each pass.
- */
-{
-  my_main_ptr main = (my_main_ptr) cinfo->main;
-  int ci, i, rgroup;
-  int M = cinfo->min_DCT_scaled_size;
-  jpeg_component_info *compptr;
-  JSAMPARRAY buf, xbuf0, xbuf1;
-
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    rgroup = (compptr->v_samp_factor * compptr->DCT_scaled_size) /
-      cinfo->min_DCT_scaled_size; /* height of a row group of component */
-    xbuf0 = main->xbuffer[0][ci];
-    xbuf1 = main->xbuffer[1][ci];
-    /* First copy the workspace pointers as-is */
-    buf = main->buffer[ci];
-    for (i = 0; i < rgroup * (M + 2); i++) {
-      xbuf0[i] = xbuf1[i] = buf[i];
-    }
-    /* In the second list, put the last four row groups in swapped order */
-    for (i = 0; i < rgroup * 2; i++) {
-      xbuf1[rgroup*(M-2) + i] = buf[rgroup*M + i];
-      xbuf1[rgroup*M + i] = buf[rgroup*(M-2) + i];
-    }
-    /* The wraparound pointers at top and bottom will be filled later
-     * (see set_wraparound_pointers, below).  Initially we want the "above"
-     * pointers to duplicate the first actual data line.  This only needs
-     * to happen in xbuffer[0].
-     */
-    for (i = 0; i < rgroup; i++) {
-      xbuf0[i - rgroup] = xbuf0[0];
-    }
-  }
-}
-
-
-LOCAL(void)
-set_wraparound_pointers (j_decompress_ptr cinfo)
-/* Set up the "wraparound" pointers at top and bottom of the pointer lists.
- * This changes the pointer list state from top-of-image to the normal state.
- */
-{
-  my_main_ptr main = (my_main_ptr) cinfo->main;
-  int ci, i, rgroup;
-  int M = cinfo->min_DCT_scaled_size;
-  jpeg_component_info *compptr;
-  JSAMPARRAY xbuf0, xbuf1;
-
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    rgroup = (compptr->v_samp_factor * compptr->DCT_scaled_size) /
-      cinfo->min_DCT_scaled_size; /* height of a row group of component */
-    xbuf0 = main->xbuffer[0][ci];
-    xbuf1 = main->xbuffer[1][ci];
-    for (i = 0; i < rgroup; i++) {
-      xbuf0[i - rgroup] = xbuf0[rgroup*(M+1) + i];
-      xbuf1[i - rgroup] = xbuf1[rgroup*(M+1) + i];
-      xbuf0[rgroup*(M+2) + i] = xbuf0[i];
-      xbuf1[rgroup*(M+2) + i] = xbuf1[i];
-    }
-  }
-}
-
-
-LOCAL(void)
-set_bottom_pointers (j_decompress_ptr cinfo)
-/* Change the pointer lists to duplicate the last sample row at the bottom
- * of the image.  whichptr indicates which xbuffer holds the final iMCU row.
- * Also sets rowgroups_avail to indicate number of nondummy row groups in row.
- */
-{
-  my_main_ptr main = (my_main_ptr) cinfo->main;
-  int ci, i, rgroup, iMCUheight, rows_left;
-  jpeg_component_info *compptr;
-  JSAMPARRAY xbuf;
-
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    /* Count sample rows in one iMCU row and in one row group */
-    iMCUheight = compptr->v_samp_factor * compptr->DCT_scaled_size;
-    rgroup = iMCUheight / cinfo->min_DCT_scaled_size;
-    /* Count nondummy sample rows remaining for this component */
-    rows_left = (int) (compptr->downsampled_height % (JDIMENSION) iMCUheight);
-    if (rows_left == 0) rows_left = iMCUheight;
-    /* Count nondummy row groups.  Should get same answer for each component,
-     * so we need only do it once.
-     */
-    if (ci == 0) {
-      main->rowgroups_avail = (JDIMENSION) ((rows_left-1) / rgroup + 1);
-    }
-    /* Duplicate the last real sample row rgroup*2 times; this pads out the
-     * last partial rowgroup and ensures at least one full rowgroup of context.
-     */
-    xbuf = main->xbuffer[main->whichptr][ci];
-    for (i = 0; i < rgroup * 2; i++) {
-      xbuf[rows_left + i] = xbuf[rows_left-1];
-    }
-  }
-}
-
-
-/*
- * Initialize for a processing pass.
- */
-
-METHODDEF(void)
-start_pass_main (j_decompress_ptr cinfo, J_BUF_MODE pass_mode)
-{
-  my_main_ptr main = (my_main_ptr) cinfo->main;
-
-  switch (pass_mode) {
-  case JBUF_PASS_THRU:
-    if (cinfo->upsample->need_context_rows) {
-      main->pub.process_data = process_data_context_main;
-      make_funny_pointers(cinfo); /* Create the xbuffer[] lists */
-      main->whichptr = 0;	/* Read first iMCU row into xbuffer[0] */
-      main->context_state = CTX_PREPARE_FOR_IMCU;
-      main->iMCU_row_ctr = 0;
-    } else {
-      /* Simple case with no context needed */
-      main->pub.process_data = process_data_simple_main;
-    }
-    main->buffer_full = FALSE;	/* Mark buffer empty */
-    main->rowgroup_ctr = 0;
-    break;
-#ifdef TQUANT_2PASS_SUPPORTED
-  case JBUF_CRANK_DEST:
-    /* For last pass of 2-pass quantization, just crank the postprocessor */
-    main->pub.process_data = process_data_crank_post;
-    break;
-#endif
-  default:
-    ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-    break;
-  }
-}
-
-
-/*
- * Process some data.
- * This handles the simple case where no context is required.
- */
-
-METHODDEF(void)
-process_data_simple_main (j_decompress_ptr cinfo,
-			  JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-			  JDIMENSION out_rows_avail)
-{
-  my_main_ptr main = (my_main_ptr) cinfo->main;
-  JDIMENSION rowgroups_avail;
-
-  /* Read input data if we haven't filled the main buffer yet */
-  if (! main->buffer_full) {
-    if (! (*cinfo->coef->decompress_data) (cinfo, main->buffer))
-      return;			/* suspension forced, can do nothing more */
-    main->buffer_full = TRUE;	/* OK, we have an iMCU row to work with */
-  }
-
-  /* There are always min_DCT_scaled_size row groups in an iMCU row. */
-  rowgroups_avail = (JDIMENSION) cinfo->min_DCT_scaled_size;
-  /* Note: at the bottom of the image, we may pass extra garbage row groups
-   * to the postprocessor.  The postprocessor has to check for bottom
-   * of image anyway (at row resolution), so no point in us doing it too.
-   */
-
-  /* Feed the postprocessor */
-  (*cinfo->post->post_process_data) (cinfo, main->buffer,
-				     &main->rowgroup_ctr, rowgroups_avail,
-				     output_buf, out_row_ctr, out_rows_avail);
-
-  /* Has postprocessor consumed all the data yet? If so, mark buffer empty */
-  if (main->rowgroup_ctr >= rowgroups_avail) {
-    main->buffer_full = FALSE;
-    main->rowgroup_ctr = 0;
-  }
-}
-
-
-/*
- * Process some data.
- * This handles the case where context rows must be provided.
- */
-
-METHODDEF(void)
-process_data_context_main (j_decompress_ptr cinfo,
-			   JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-			   JDIMENSION out_rows_avail)
-{
-  my_main_ptr main = (my_main_ptr) cinfo->main;
-
-  /* Read input data if we haven't filled the main buffer yet */
-  if (! main->buffer_full) {
-    if (! (*cinfo->coef->decompress_data) (cinfo,
-					   main->xbuffer[main->whichptr]))
-      return;			/* suspension forced, can do nothing more */
-    main->buffer_full = TRUE;	/* OK, we have an iMCU row to work with */
-    main->iMCU_row_ctr++;	/* count rows received */
-  }
-
-  /* Postprocessor typically will not swallow all the input data it is handed
-   * in one call (due to filling the output buffer first).  Must be prepared
-   * to exit and restart.  This switch lets us keep track of how far we got.
-   * Note that each case falls through to the next on successful completion.
-   */
-  switch (main->context_state) {
-  case CTX_POSTPONED_ROW:
-    /* Call postprocessor using previously set pointers for postponed row */
-    (*cinfo->post->post_process_data) (cinfo, main->xbuffer[main->whichptr],
-			&main->rowgroup_ctr, main->rowgroups_avail,
-			output_buf, out_row_ctr, out_rows_avail);
-    if (main->rowgroup_ctr < main->rowgroups_avail)
-      return;			/* Need to suspend */
-    main->context_state = CTX_PREPARE_FOR_IMCU;
-    if (*out_row_ctr >= out_rows_avail)
-      return;			/* Postprocessor exactly filled output buf */
-    /*FALLTHROUGH*/
-  case CTX_PREPARE_FOR_IMCU:
-    /* Prepare to process first M-1 row groups of this iMCU row */
-    main->rowgroup_ctr = 0;
-    main->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_scaled_size - 1);
-    /* Check for bottom of image: if so, tweak pointers to "duplicate"
-     * the last sample row, and adjust rowgroups_avail to ignore padding rows.
-     */
-    if (main->iMCU_row_ctr == cinfo->total_iMCU_rows)
-      set_bottom_pointers(cinfo);
-    main->context_state = CTX_PROCESS_IMCU;
-    /*FALLTHROUGH*/
-  case CTX_PROCESS_IMCU:
-    /* Call postprocessor using previously set pointers */
-    (*cinfo->post->post_process_data) (cinfo, main->xbuffer[main->whichptr],
-			&main->rowgroup_ctr, main->rowgroups_avail,
-			output_buf, out_row_ctr, out_rows_avail);
-    if (main->rowgroup_ctr < main->rowgroups_avail)
-      return;			/* Need to suspend */
-    /* After the first iMCU, change wraparound pointers to normal state */
-    if (main->iMCU_row_ctr == 1)
-      set_wraparound_pointers(cinfo);
-    /* Prepare to load new iMCU row using other xbuffer list */
-    main->whichptr ^= 1;	/* 0=>1 or 1=>0 */
-    main->buffer_full = FALSE;
-    /* Still need to process last row group of this iMCU row, */
-    /* which is saved at index M+1 of the other xbuffer */
-    main->rowgroup_ctr = (JDIMENSION) (cinfo->min_DCT_scaled_size + 1);
-    main->rowgroups_avail = (JDIMENSION) (cinfo->min_DCT_scaled_size + 2);
-    main->context_state = CTX_POSTPONED_ROW;
-  }
-}
-
-
-/*
- * Process some data.
- * Final pass of two-pass quantization: just call the postprocessor.
- * Source data will be the postprocessor controller's internal buffer.
- */
-
-#ifdef TQUANT_2PASS_SUPPORTED
-
-METHODDEF(void)
-process_data_crank_post (j_decompress_ptr cinfo,
-			 JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-			 JDIMENSION out_rows_avail)
-{
-  (*cinfo->post->post_process_data) (cinfo, (JSAMPIMAGE) NULL,
-				     (JDIMENSION *) NULL, (JDIMENSION) 0,
-				     output_buf, out_row_ctr, out_rows_avail);
-}
-
-#endif /* TQUANT_2PASS_SUPPORTED */
-
-
-/*
- * Initialize main buffer controller.
- */
-
-GLOBAL(void)
-jinit_d_main_controller (j_decompress_ptr cinfo, boolean need_full_buffer)
-{
-  my_main_ptr main;
-  int ci, rgroup, ngroups;
-  jpeg_component_info *compptr;
-
-  main = (my_main_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_main_controller));
-  cinfo->main = (struct jpeg_d_main_controller *) main;
-  main->pub.start_pass = start_pass_main;
-
-  if (need_full_buffer)		/* shouldn't happen */
-    ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-
-  /* Allocate the workspace.
-   * ngroups is the number of row groups we need.
-   */
-  if (cinfo->upsample->need_context_rows) {
-    if (cinfo->min_DCT_scaled_size < 2) /* unsupported, see comments above */
-      ERREXIT(cinfo, JERR_NOTIMPL);
-    alloc_funny_pointers(cinfo); /* Alloc space for xbuffer[] lists */
-    ngroups = cinfo->min_DCT_scaled_size + 2;
-  } else {
-    ngroups = cinfo->min_DCT_scaled_size;
-  }
-
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    rgroup = (compptr->v_samp_factor * compptr->DCT_scaled_size) /
-      cinfo->min_DCT_scaled_size; /* height of a row group of component */
-    main->buffer[ci] = (*cinfo->mem->alloc_sarray)
-			((j_common_ptr) cinfo, JPOOL_IMAGE,
-			 compptr->width_in_blocks * compptr->DCT_scaled_size,
-			 (JDIMENSION) (rgroup * ngroups));
-  }
-}
diff --git a/src/3rdparty/libjpeg/jdmarker.c b/src/3rdparty/libjpeg/jdmarker.c
deleted file mode 100644
index 048dfc7ae..000000000
--- a/src/3rdparty/libjpeg/jdmarker.c
+++ /dev/null
@@ -1,1360 +0,0 @@
-/*
- * jdmarker.c
- *
- * Copyright (C) 1991-1998, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains routines to decode JPEG datastream markers.
- * Most of the complexity arises from our desire to support input
- * suspension: if not all of the data for a marker is available,
- * we must exit back to the application.  On resumption, we reprocess
- * the marker.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-typedef enum {			/* JPEG marker codes */
-  M_SOF0  = 0xc0,
-  M_SOF1  = 0xc1,
-  M_SOF2  = 0xc2,
-  M_SOF3  = 0xc3,
-  
-  M_SOF5  = 0xc5,
-  M_SOF6  = 0xc6,
-  M_SOF7  = 0xc7,
-  
-  M_JPG   = 0xc8,
-  M_SOF9  = 0xc9,
-  M_SOF10 = 0xca,
-  M_SOF11 = 0xcb,
-  
-  M_SOF13 = 0xcd,
-  M_SOF14 = 0xce,
-  M_SOF15 = 0xcf,
-  
-  M_DHT   = 0xc4,
-  
-  M_DAC   = 0xcc,
-  
-  M_RST0  = 0xd0,
-  M_RST1  = 0xd1,
-  M_RST2  = 0xd2,
-  M_RST3  = 0xd3,
-  M_RST4  = 0xd4,
-  M_RST5  = 0xd5,
-  M_RST6  = 0xd6,
-  M_RST7  = 0xd7,
-  
-  M_SOI   = 0xd8,
-  M_EOI   = 0xd9,
-  M_SOS   = 0xda,
-  M_DQT   = 0xdb,
-  M_DNL   = 0xdc,
-  M_DRI   = 0xdd,
-  M_DHP   = 0xde,
-  M_EXP   = 0xdf,
-  
-  M_APP0  = 0xe0,
-  M_APP1  = 0xe1,
-  M_APP2  = 0xe2,
-  M_APP3  = 0xe3,
-  M_APP4  = 0xe4,
-  M_APP5  = 0xe5,
-  M_APP6  = 0xe6,
-  M_APP7  = 0xe7,
-  M_APP8  = 0xe8,
-  M_APP9  = 0xe9,
-  M_APP10 = 0xea,
-  M_APP11 = 0xeb,
-  M_APP12 = 0xec,
-  M_APP13 = 0xed,
-  M_APP14 = 0xee,
-  M_APP15 = 0xef,
-  
-  M_JPG0  = 0xf0,
-  M_JPG13 = 0xfd,
-  M_COM   = 0xfe,
-  
-  M_TEM   = 0x01,
-  
-  M_ERROR = 0x100
-} JPEG_MARKER;
-
-
-/* Private state */
-
-typedef struct {
-  struct jpeg_marker_reader pub; /* public fields */
-
-  /* Application-overridable marker processing methods */
-  jpeg_marker_parser_method process_COM;
-  jpeg_marker_parser_method process_APPn[16];
-
-  /* Limit on marker data length to save for each marker type */
-  unsigned int length_limit_COM;
-  unsigned int length_limit_APPn[16];
-
-  /* Status of COM/APPn marker saving */
-  jpeg_saved_marker_ptr cur_marker;	/* NULL if not processing a marker */
-  unsigned int bytes_read;		/* data bytes read so far in marker */
-  /* Note: cur_marker is not linked into marker_list until it's all read. */
-} my_marker_reader;
-
-typedef my_marker_reader * my_marker_ptr;
-
-
-/*
- * Macros for fetching data from the data source module.
- *
- * At all times, cinfo->src->next_input_byte and ->bytes_in_buffer reflect
- * the current restart point; we update them only when we have reached a
- * suitable place to restart if a suspension occurs.
- */
-
-/* Declare and initialize local copies of input pointer/count */
-#define INPUT_VARS(cinfo)  \
-	struct jpeg_source_mgr * datasrc = (cinfo)->src;  \
-	const JOCTET * next_input_byte = datasrc->next_input_byte;  \
-	size_t bytes_in_buffer = datasrc->bytes_in_buffer
-
-/* Unload the local copies --- do this only at a restart boundary */
-#define INPUT_SYNC(cinfo)  \
-	( datasrc->next_input_byte = next_input_byte,  \
-	  datasrc->bytes_in_buffer = bytes_in_buffer )
-
-/* Reload the local copies --- used only in MAKE_BYTE_AVAIL */
-#define INPUT_RELOAD(cinfo)  \
-	( next_input_byte = datasrc->next_input_byte,  \
-	  bytes_in_buffer = datasrc->bytes_in_buffer )
-
-/* Internal macro for INPUT_BYTE and INPUT_2BYTES: make a byte available.
- * Note we do *not* do INPUT_SYNC before calling fill_input_buffer,
- * but we must reload the local copies after a successful fill.
- */
-#define MAKE_BYTE_AVAIL(cinfo,action)  \
-	if (bytes_in_buffer == 0) {  \
-	  if (! (*datasrc->fill_input_buffer) (cinfo))  \
-	    { action; }  \
-	  INPUT_RELOAD(cinfo);  \
-	}
-
-/* Read a byte into variable V.
- * If must suspend, take the specified action (typically "return FALSE").
- */
-#define INPUT_BYTE(cinfo,V,action)  \
-	MAKESTMT( MAKE_BYTE_AVAIL(cinfo,action); \
-		  bytes_in_buffer--; \
-		  V = GETJOCTET(*next_input_byte++); )
-
-/* As above, but read two bytes interpreted as an unsigned 16-bit integer.
- * V should be declared unsigned int or perhaps INT32.
- */
-#define INPUT_2BYTES(cinfo,V,action)  \
-	MAKESTMT( MAKE_BYTE_AVAIL(cinfo,action); \
-		  bytes_in_buffer--; \
-		  V = ((unsigned int) GETJOCTET(*next_input_byte++)) << 8; \
-		  MAKE_BYTE_AVAIL(cinfo,action); \
-		  bytes_in_buffer--; \
-		  V += GETJOCTET(*next_input_byte++); )
-
-
-/*
- * Routines to process JPEG markers.
- *
- * Entry condition: JPEG marker itself has been read and its code saved
- *   in cinfo->unread_marker; input restart point is just after the marker.
- *
- * Exit: if return TRUE, have read and processed any parameters, and have
- *   updated the restart point to point after the parameters.
- *   If return FALSE, was forced to suspend before reaching end of
- *   marker parameters; restart point has not been moved.  Same routine
- *   will be called again after application supplies more input data.
- *
- * This approach to suspension assumes that all of a marker's parameters
- * can fit into a single input bufferload.  This should hold for "normal"
- * markers.  Some COM/APPn markers might have large parameter segments
- * that might not fit.  If we are simply dropping such a marker, we use
- * skip_input_data to get past it, and thereby put the problem on the
- * source manager's shoulders.  If we are saving the marker's contents
- * into memory, we use a slightly different convention: when forced to
- * suspend, the marker processor updates the restart point to the end of
- * what it's consumed (ie, the end of the buffer) before returning FALSE.
- * On resumption, cinfo->unread_marker still contains the marker code,
- * but the data source will point to the next chunk of marker data.
- * The marker processor must retain internal state to deal with this.
- *
- * Note that we don't bother to avoid duplicate trace messages if a
- * suspension occurs within marker parameters.  Other side effects
- * require more care.
- */
-
-
-LOCAL(boolean)
-get_soi (j_decompress_ptr cinfo)
-/* Process an SOI marker */
-{
-  int i;
-  
-  TRACEMS(cinfo, 1, JTRC_SOI);
-
-  if (cinfo->marker->saw_SOI)
-    ERREXIT(cinfo, JERR_SOI_DUPLICATE);
-
-  /* Reset all parameters that are defined to be reset by SOI */
-
-  for (i = 0; i < NUM_ARITH_TBLS; i++) {
-    cinfo->arith_dc_L[i] = 0;
-    cinfo->arith_dc_U[i] = 1;
-    cinfo->arith_ac_K[i] = 5;
-  }
-  cinfo->restart_interval = 0;
-
-  /* Set initial assumptions for colorspace etc */
-
-  cinfo->jpeg_color_space = JCS_UNKNOWN;
-  cinfo->CCIR601_sampling = FALSE; /* Assume non-CCIR sampling??? */
-
-  cinfo->saw_JFIF_marker = FALSE;
-  cinfo->JFIF_major_version = 1; /* set default JFIF APP0 values */
-  cinfo->JFIF_minor_version = 1;
-  cinfo->density_unit = 0;
-  cinfo->X_density = 1;
-  cinfo->Y_density = 1;
-  cinfo->saw_Adobe_marker = FALSE;
-  cinfo->Adobe_transform = 0;
-
-  cinfo->marker->saw_SOI = TRUE;
-
-  return TRUE;
-}
-
-
-LOCAL(boolean)
-get_sof (j_decompress_ptr cinfo, boolean is_prog, boolean is_arith)
-/* Process a SOFn marker */
-{
-  INT32 length;
-  int c, ci;
-  jpeg_component_info * compptr;
-  INPUT_VARS(cinfo);
-
-  cinfo->progressive_mode = is_prog;
-  cinfo->arith_code = is_arith;
-
-  INPUT_2BYTES(cinfo, length, return FALSE);
-
-  INPUT_BYTE(cinfo, cinfo->data_precision, return FALSE);
-  INPUT_2BYTES(cinfo, cinfo->image_height, return FALSE);
-  INPUT_2BYTES(cinfo, cinfo->image_width, return FALSE);
-  INPUT_BYTE(cinfo, cinfo->num_components, return FALSE);
-
-  length -= 8;
-
-  TRACEMS4(cinfo, 1, JTRC_SOF, cinfo->unread_marker,
-	   (int) cinfo->image_width, (int) cinfo->image_height,
-	   cinfo->num_components);
-
-  if (cinfo->marker->saw_SOF)
-    ERREXIT(cinfo, JERR_SOF_DUPLICATE);
-
-  /* We don't support files in which the image height is initially specified */
-  /* as 0 and is later redefined by DNL.  As long as we have to check that,  */
-  /* might as well have a general sanity check. */
-  if (cinfo->image_height <= 0 || cinfo->image_width <= 0
-      || cinfo->num_components <= 0)
-    ERREXIT(cinfo, JERR_EMPTY_IMAGE);
-
-  if (length != (cinfo->num_components * 3))
-    ERREXIT(cinfo, JERR_BAD_LENGTH);
-
-  if (cinfo->comp_info == NULL)	/* do only once, even if suspend */
-    cinfo->comp_info = (jpeg_component_info *) (*cinfo->mem->alloc_small)
-			((j_common_ptr) cinfo, JPOOL_IMAGE,
-			 cinfo->num_components * SIZEOF(jpeg_component_info));
-  
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    compptr->component_index = ci;
-    INPUT_BYTE(cinfo, compptr->component_id, return FALSE);
-    INPUT_BYTE(cinfo, c, return FALSE);
-    compptr->h_samp_factor = (c >> 4) & 15;
-    compptr->v_samp_factor = (c     ) & 15;
-    INPUT_BYTE(cinfo, compptr->quant_tbl_no, return FALSE);
-
-    TRACEMS4(cinfo, 1, JTRC_SOF_COMPONENT,
-	     compptr->component_id, compptr->h_samp_factor,
-	     compptr->v_samp_factor, compptr->quant_tbl_no);
-  }
-
-  cinfo->marker->saw_SOF = TRUE;
-
-  INPUT_SYNC(cinfo);
-  return TRUE;
-}
-
-
-LOCAL(boolean)
-get_sos (j_decompress_ptr cinfo)
-/* Process a SOS marker */
-{
-  INT32 length;
-  int i, ci, n, c, cc;
-  jpeg_component_info * compptr;
-  INPUT_VARS(cinfo);
-
-  if (! cinfo->marker->saw_SOF)
-    ERREXIT(cinfo, JERR_SOS_NO_SOF);
-
-  INPUT_2BYTES(cinfo, length, return FALSE);
-
-  INPUT_BYTE(cinfo, n, return FALSE); /* Number of components */
-
-  TRACEMS1(cinfo, 1, JTRC_SOS, n);
-
-  if (length != (n * 2 + 6) || n < 1 || n > MAX_COMPS_IN_SCAN)
-    ERREXIT(cinfo, JERR_BAD_LENGTH);
-
-  cinfo->comps_in_scan = n;
-
-  /* Collect the component-spec parameters */
-
-  for (i = 0; i < n; i++) {
-    INPUT_BYTE(cinfo, cc, return FALSE);
-    INPUT_BYTE(cinfo, c, return FALSE);
-    
-    for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-	 ci++, compptr++) {
-      if (cc == compptr->component_id)
-	goto id_found;
-    }
-
-    ERREXIT1(cinfo, JERR_BAD_COMPONENT_ID, cc);
-
-  id_found:
-
-    cinfo->cur_comp_info[i] = compptr;
-    compptr->dc_tbl_no = (c >> 4) & 15;
-    compptr->ac_tbl_no = (c     ) & 15;
-    
-    TRACEMS3(cinfo, 1, JTRC_SOS_COMPONENT, cc,
-	     compptr->dc_tbl_no, compptr->ac_tbl_no);
-  }
-
-  /* Collect the additional scan parameters Ss, Se, Ah/Al. */
-  INPUT_BYTE(cinfo, c, return FALSE);
-  cinfo->Ss = c;
-  INPUT_BYTE(cinfo, c, return FALSE);
-  cinfo->Se = c;
-  INPUT_BYTE(cinfo, c, return FALSE);
-  cinfo->Ah = (c >> 4) & 15;
-  cinfo->Al = (c     ) & 15;
-
-  TRACEMS4(cinfo, 1, JTRC_SOS_PARAMS, cinfo->Ss, cinfo->Se,
-	   cinfo->Ah, cinfo->Al);
-
-  /* Prepare to scan data & restart markers */
-  cinfo->marker->next_restart_num = 0;
-
-  /* Count another SOS marker */
-  cinfo->input_scan_number++;
-
-  INPUT_SYNC(cinfo);
-  return TRUE;
-}
-
-
-#ifdef D_ARITH_CODING_SUPPORTED
-
-LOCAL(boolean)
-get_dac (j_decompress_ptr cinfo)
-/* Process a DAC marker */
-{
-  INT32 length;
-  int index, val;
-  INPUT_VARS(cinfo);
-
-  INPUT_2BYTES(cinfo, length, return FALSE);
-  length -= 2;
-  
-  while (length > 0) {
-    INPUT_BYTE(cinfo, index, return FALSE);
-    INPUT_BYTE(cinfo, val, return FALSE);
-
-    length -= 2;
-
-    TRACEMS2(cinfo, 1, JTRC_DAC, index, val);
-
-    if (index < 0 || index >= (2*NUM_ARITH_TBLS))
-      ERREXIT1(cinfo, JERR_DAC_INDEX, index);
-
-    if (index >= NUM_ARITH_TBLS) { /* define AC table */
-      cinfo->arith_ac_K[index-NUM_ARITH_TBLS] = (UINT8) val;
-    } else {			/* define DC table */
-      cinfo->arith_dc_L[index] = (UINT8) (val & 0x0F);
-      cinfo->arith_dc_U[index] = (UINT8) (val >> 4);
-      if (cinfo->arith_dc_L[index] > cinfo->arith_dc_U[index])
-	ERREXIT1(cinfo, JERR_DAC_VALUE, val);
-    }
-  }
-
-  if (length != 0)
-    ERREXIT(cinfo, JERR_BAD_LENGTH);
-
-  INPUT_SYNC(cinfo);
-  return TRUE;
-}
-
-#else /* ! D_ARITH_CODING_SUPPORTED */
-
-#define get_dac(cinfo)  skip_variable(cinfo)
-
-#endif /* D_ARITH_CODING_SUPPORTED */
-
-
-LOCAL(boolean)
-get_dht (j_decompress_ptr cinfo)
-/* Process a DHT marker */
-{
-  INT32 length;
-  UINT8 bits[17];
-  UINT8 huffval[256];
-  int i, index, count;
-  JHUFF_TBL **htblptr;
-  INPUT_VARS(cinfo);
-
-  INPUT_2BYTES(cinfo, length, return FALSE);
-  length -= 2;
-  
-  while (length > 16) {
-    INPUT_BYTE(cinfo, index, return FALSE);
-
-    TRACEMS1(cinfo, 1, JTRC_DHT, index);
-      
-    bits[0] = 0;
-    count = 0;
-    for (i = 1; i <= 16; i++) {
-      INPUT_BYTE(cinfo, bits[i], return FALSE);
-      count += bits[i];
-    }
-
-    length -= 1 + 16;
-
-    TRACEMS8(cinfo, 2, JTRC_HUFFBITS,
-	     bits[1], bits[2], bits[3], bits[4],
-	     bits[5], bits[6], bits[7], bits[8]);
-    TRACEMS8(cinfo, 2, JTRC_HUFFBITS,
-	     bits[9], bits[10], bits[11], bits[12],
-	     bits[13], bits[14], bits[15], bits[16]);
-
-    /* Here we just do minimal validation of the counts to avoid walking
-     * off the end of our table space.  jdhuff.c will check more carefully.
-     */
-    if (count > 256 || ((INT32) count) > length)
-      ERREXIT(cinfo, JERR_BAD_HUFF_TABLE);
-
-    for (i = 0; i < count; i++)
-      INPUT_BYTE(cinfo, huffval[i], return FALSE);
-
-    length -= count;
-
-    if (index & 0x10) {		/* AC table definition */
-      index -= 0x10;
-      htblptr = &cinfo->ac_huff_tbl_ptrs[index];
-    } else {			/* DC table definition */
-      htblptr = &cinfo->dc_huff_tbl_ptrs[index];
-    }
-
-    if (index < 0 || index >= NUM_HUFF_TBLS)
-      ERREXIT1(cinfo, JERR_DHT_INDEX, index);
-
-    if (*htblptr == NULL)
-      *htblptr = jpeg_alloc_huff_table((j_common_ptr) cinfo);
-  
-    MEMCOPY((*htblptr)->bits, bits, SIZEOF((*htblptr)->bits));
-    MEMCOPY((*htblptr)->huffval, huffval, SIZEOF((*htblptr)->huffval));
-  }
-
-  if (length != 0)
-    ERREXIT(cinfo, JERR_BAD_LENGTH);
-
-  INPUT_SYNC(cinfo);
-  return TRUE;
-}
-
-
-LOCAL(boolean)
-get_dqt (j_decompress_ptr cinfo)
-/* Process a DQT marker */
-{
-  INT32 length;
-  int n, i, prec;
-  unsigned int tmp;
-  JTQUANT_TBL *quant_ptr;
-  INPUT_VARS(cinfo);
-
-  INPUT_2BYTES(cinfo, length, return FALSE);
-  length -= 2;
-
-  while (length > 0) {
-    INPUT_BYTE(cinfo, n, return FALSE);
-    prec = n >> 4;
-    n &= 0x0F;
-
-    TRACEMS2(cinfo, 1, JTRC_DQT, n, prec);
-
-    if (n >= NUM_QUANT_TBLS)
-      ERREXIT1(cinfo, JERR_DQT_INDEX, n);
-      
-    if (cinfo->quant_tbl_ptrs[n] == NULL)
-      cinfo->quant_tbl_ptrs[n] = jpeg_alloc_quant_table((j_common_ptr) cinfo);
-    quant_ptr = cinfo->quant_tbl_ptrs[n];
-
-    for (i = 0; i < DCTSIZE2; i++) {
-      if (prec)
-	INPUT_2BYTES(cinfo, tmp, return FALSE);
-      else
-	INPUT_BYTE(cinfo, tmp, return FALSE);
-      /* We convert the zigzag-order table to natural array order. */
-      quant_ptr->quantval[jpeg_natural_order[i]] = (UINT16) tmp;
-    }
-
-    if (cinfo->err->trace_level >= 2) {
-      for (i = 0; i < DCTSIZE2; i += 8) {
-	TRACEMS8(cinfo, 2, JTRC_QUANTVALS,
-		 quant_ptr->quantval[i],   quant_ptr->quantval[i+1],
-		 quant_ptr->quantval[i+2], quant_ptr->quantval[i+3],
-		 quant_ptr->quantval[i+4], quant_ptr->quantval[i+5],
-		 quant_ptr->quantval[i+6], quant_ptr->quantval[i+7]);
-      }
-    }
-
-    length -= DCTSIZE2+1;
-    if (prec) length -= DCTSIZE2;
-  }
-
-  if (length != 0)
-    ERREXIT(cinfo, JERR_BAD_LENGTH);
-
-  INPUT_SYNC(cinfo);
-  return TRUE;
-}
-
-
-LOCAL(boolean)
-get_dri (j_decompress_ptr cinfo)
-/* Process a DRI marker */
-{
-  INT32 length;
-  unsigned int tmp;
-  INPUT_VARS(cinfo);
-
-  INPUT_2BYTES(cinfo, length, return FALSE);
-  
-  if (length != 4)
-    ERREXIT(cinfo, JERR_BAD_LENGTH);
-
-  INPUT_2BYTES(cinfo, tmp, return FALSE);
-
-  TRACEMS1(cinfo, 1, JTRC_DRI, tmp);
-
-  cinfo->restart_interval = tmp;
-
-  INPUT_SYNC(cinfo);
-  return TRUE;
-}
-
-
-/*
- * Routines for processing APPn and COM markers.
- * These are either saved in memory or discarded, per application request.
- * APP0 and APP14 are specially checked to see if they are
- * JFIF and Adobe markers, respectively.
- */
-
-#define APP0_DATA_LEN	14	/* Length of interesting data in APP0 */
-#define APP14_DATA_LEN	12	/* Length of interesting data in APP14 */
-#define APPN_DATA_LEN	14	/* Must be the largest of the above!! */
-
-
-LOCAL(void)
-examine_app0 (j_decompress_ptr cinfo, JOCTET FAR * data,
-	      unsigned int datalen, INT32 remaining)
-/* Examine first few bytes from an APP0.
- * Take appropriate action if it is a JFIF marker.
- * datalen is # of bytes at data[], remaining is length of rest of marker data.
- */
-{
-  INT32 totallen = (INT32) datalen + remaining;
-
-  if (datalen >= APP0_DATA_LEN &&
-      GETJOCTET(data[0]) == 0x4A &&
-      GETJOCTET(data[1]) == 0x46 &&
-      GETJOCTET(data[2]) == 0x49 &&
-      GETJOCTET(data[3]) == 0x46 &&
-      GETJOCTET(data[4]) == 0) {
-    /* Found JFIF APP0 marker: save info */
-    cinfo->saw_JFIF_marker = TRUE;
-    cinfo->JFIF_major_version = GETJOCTET(data[5]);
-    cinfo->JFIF_minor_version = GETJOCTET(data[6]);
-    cinfo->density_unit = GETJOCTET(data[7]);
-    cinfo->X_density = (GETJOCTET(data[8]) << 8) + GETJOCTET(data[9]);
-    cinfo->Y_density = (GETJOCTET(data[10]) << 8) + GETJOCTET(data[11]);
-    /* Check version.
-     * Major version must be 1, anything else signals an incompatible change.
-     * (We used to treat this as an error, but now it's a nonfatal warning,
-     * because some bozo at Hijaak couldn't read the spec.)
-     * Minor version should be 0..2, but process anyway if newer.
-     */
-    if (cinfo->JFIF_major_version != 1)
-      WARNMS2(cinfo, JWRN_JFIF_MAJOR,
-	      cinfo->JFIF_major_version, cinfo->JFIF_minor_version);
-    /* Generate trace messages */
-    TRACEMS5(cinfo, 1, JTRC_JFIF,
-	     cinfo->JFIF_major_version, cinfo->JFIF_minor_version,
-	     cinfo->X_density, cinfo->Y_density, cinfo->density_unit);
-    /* Validate thumbnail dimensions and issue appropriate messages */
-    if (GETJOCTET(data[12]) | GETJOCTET(data[13]))
-      TRACEMS2(cinfo, 1, JTRC_JFIF_THUMBNAIL,
-	       GETJOCTET(data[12]), GETJOCTET(data[13]));
-    totallen -= APP0_DATA_LEN;
-    if (totallen !=
-	((INT32)GETJOCTET(data[12]) * (INT32)GETJOCTET(data[13]) * (INT32) 3))
-      TRACEMS1(cinfo, 1, JTRC_JFIF_BADTHUMBNAILSIZE, (int) totallen);
-  } else if (datalen >= 6 &&
-      GETJOCTET(data[0]) == 0x4A &&
-      GETJOCTET(data[1]) == 0x46 &&
-      GETJOCTET(data[2]) == 0x58 &&
-      GETJOCTET(data[3]) == 0x58 &&
-      GETJOCTET(data[4]) == 0) {
-    /* Found JFIF "JFXX" extension APP0 marker */
-    /* The library doesn't actually do anything with these,
-     * but we try to produce a helpful trace message.
-     */
-    switch (GETJOCTET(data[5])) {
-    case 0x10:
-      TRACEMS1(cinfo, 1, JTRC_THUMB_JPEG, (int) totallen);
-      break;
-    case 0x11:
-      TRACEMS1(cinfo, 1, JTRC_THUMB_PALETTE, (int) totallen);
-      break;
-    case 0x13:
-      TRACEMS1(cinfo, 1, JTRC_THUMB_RGB, (int) totallen);
-      break;
-    default:
-      TRACEMS2(cinfo, 1, JTRC_JFIF_EXTENSION,
-	       GETJOCTET(data[5]), (int) totallen);
-      break;
-    }
-  } else {
-    /* Start of APP0 does not match "JFIF" or "JFXX", or too short */
-    TRACEMS1(cinfo, 1, JTRC_APP0, (int) totallen);
-  }
-}
-
-
-LOCAL(void)
-examine_app14 (j_decompress_ptr cinfo, JOCTET FAR * data,
-	       unsigned int datalen, INT32 remaining)
-/* Examine first few bytes from an APP14.
- * Take appropriate action if it is an Adobe marker.
- * datalen is # of bytes at data[], remaining is length of rest of marker data.
- */
-{
-  unsigned int version, flags0, flags1, transform;
-
-  if (datalen >= APP14_DATA_LEN &&
-      GETJOCTET(data[0]) == 0x41 &&
-      GETJOCTET(data[1]) == 0x64 &&
-      GETJOCTET(data[2]) == 0x6F &&
-      GETJOCTET(data[3]) == 0x62 &&
-      GETJOCTET(data[4]) == 0x65) {
-    /* Found Adobe APP14 marker */
-    version = (GETJOCTET(data[5]) << 8) + GETJOCTET(data[6]);
-    flags0 = (GETJOCTET(data[7]) << 8) + GETJOCTET(data[8]);
-    flags1 = (GETJOCTET(data[9]) << 8) + GETJOCTET(data[10]);
-    transform = GETJOCTET(data[11]);
-    TRACEMS4(cinfo, 1, JTRC_ADOBE, version, flags0, flags1, transform);
-    cinfo->saw_Adobe_marker = TRUE;
-    cinfo->Adobe_transform = (UINT8) transform;
-  } else {
-    /* Start of APP14 does not match "Adobe", or too short */
-    TRACEMS1(cinfo, 1, JTRC_APP14, (int) (datalen + remaining));
-  }
-}
-
-
-METHODDEF(boolean)
-get_interesting_appn (j_decompress_ptr cinfo)
-/* Process an APP0 or APP14 marker without saving it */
-{
-  INT32 length;
-  JOCTET b[APPN_DATA_LEN];
-  unsigned int i, numtoread;
-  INPUT_VARS(cinfo);
-
-  INPUT_2BYTES(cinfo, length, return FALSE);
-  length -= 2;
-
-  /* get the interesting part of the marker data */
-  if (length >= APPN_DATA_LEN)
-    numtoread = APPN_DATA_LEN;
-  else if (length > 0)
-    numtoread = (unsigned int) length;
-  else
-    numtoread = 0;
-  for (i = 0; i < numtoread; i++)
-    INPUT_BYTE(cinfo, b[i], return FALSE);
-  length -= numtoread;
-
-  /* process it */
-  switch (cinfo->unread_marker) {
-  case M_APP0:
-    examine_app0(cinfo, (JOCTET FAR *) b, numtoread, length);
-    break;
-  case M_APP14:
-    examine_app14(cinfo, (JOCTET FAR *) b, numtoread, length);
-    break;
-  default:
-    /* can't get here unless jpeg_save_markers chooses wrong processor */
-    ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, cinfo->unread_marker);
-    break;
-  }
-
-  /* skip any remaining data -- could be lots */
-  INPUT_SYNC(cinfo);
-  if (length > 0)
-    (*cinfo->src->skip_input_data) (cinfo, (long) length);
-
-  return TRUE;
-}
-
-
-#ifdef SAVE_MARKERS_SUPPORTED
-
-METHODDEF(boolean)
-save_marker (j_decompress_ptr cinfo)
-/* Save an APPn or COM marker into the marker list */
-{
-  my_marker_ptr marker = (my_marker_ptr) cinfo->marker;
-  jpeg_saved_marker_ptr cur_marker = marker->cur_marker;
-  unsigned int bytes_read, data_length;
-  JOCTET FAR * data;
-  INT32 length = 0;
-  INPUT_VARS(cinfo);
-
-  if (cur_marker == NULL) {
-    /* begin reading a marker */
-    INPUT_2BYTES(cinfo, length, return FALSE);
-    length -= 2;
-    if (length >= 0) {		/* watch out for bogus length word */
-      /* figure out how much we want to save */
-      unsigned int limit;
-      if (cinfo->unread_marker == (int) M_COM)
-	limit = marker->length_limit_COM;
-      else
-	limit = marker->length_limit_APPn[cinfo->unread_marker - (int) M_APP0];
-      if ((unsigned int) length < limit)
-	limit = (unsigned int) length;
-      /* allocate and initialize the marker item */
-      cur_marker = (jpeg_saved_marker_ptr)
-	(*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				    SIZEOF(struct jpeg_marker_struct) + limit);
-      cur_marker->next = NULL;
-      cur_marker->marker = (UINT8) cinfo->unread_marker;
-      cur_marker->original_length = (unsigned int) length;
-      cur_marker->data_length = limit;
-      /* data area is just beyond the jpeg_marker_struct */
-      data = cur_marker->data = (JOCTET FAR *) (cur_marker + 1);
-      marker->cur_marker = cur_marker;
-      marker->bytes_read = 0;
-      bytes_read = 0;
-      data_length = limit;
-    } else {
-      /* deal with bogus length word */
-      bytes_read = data_length = 0;
-      data = NULL;
-    }
-  } else {
-    /* resume reading a marker */
-    bytes_read = marker->bytes_read;
-    data_length = cur_marker->data_length;
-    data = cur_marker->data + bytes_read;
-  }
-
-  while (bytes_read < data_length) {
-    INPUT_SYNC(cinfo);		/* move the restart point to here */
-    marker->bytes_read = bytes_read;
-    /* If there's not at least one byte in buffer, suspend */
-    MAKE_BYTE_AVAIL(cinfo, return FALSE);
-    /* Copy bytes with reasonable rapidity */
-    while (bytes_read < data_length && bytes_in_buffer > 0) {
-      *data++ = *next_input_byte++;
-      bytes_in_buffer--;
-      bytes_read++;
-    }
-  }
-
-  /* Done reading what we want to read */
-  if (cur_marker != NULL) {	/* will be NULL if bogus length word */
-    /* Add new marker to end of list */
-    if (cinfo->marker_list == NULL) {
-      cinfo->marker_list = cur_marker;
-    } else {
-      jpeg_saved_marker_ptr prev = cinfo->marker_list;
-      while (prev->next != NULL)
-	prev = prev->next;
-      prev->next = cur_marker;
-    }
-    /* Reset pointer & calc remaining data length */
-    data = cur_marker->data;
-    length = cur_marker->original_length - data_length;
-  }
-  /* Reset to initial state for next marker */
-  marker->cur_marker = NULL;
-
-  /* Process the marker if interesting; else just make a generic trace msg */
-  switch (cinfo->unread_marker) {
-  case M_APP0:
-    examine_app0(cinfo, data, data_length, length);
-    break;
-  case M_APP14:
-    examine_app14(cinfo, data, data_length, length);
-    break;
-  default:
-    TRACEMS2(cinfo, 1, JTRC_MISC_MARKER, cinfo->unread_marker,
-	     (int) (data_length + length));
-    break;
-  }
-
-  /* skip any remaining data -- could be lots */
-  INPUT_SYNC(cinfo);		/* do before skip_input_data */
-  if (length > 0)
-    (*cinfo->src->skip_input_data) (cinfo, (long) length);
-
-  return TRUE;
-}
-
-#endif /* SAVE_MARKERS_SUPPORTED */
-
-
-METHODDEF(boolean)
-skip_variable (j_decompress_ptr cinfo)
-/* Skip over an unknown or uninteresting variable-length marker */
-{
-  INT32 length;
-  INPUT_VARS(cinfo);
-
-  INPUT_2BYTES(cinfo, length, return FALSE);
-  length -= 2;
-  
-  TRACEMS2(cinfo, 1, JTRC_MISC_MARKER, cinfo->unread_marker, (int) length);
-
-  INPUT_SYNC(cinfo);		/* do before skip_input_data */
-  if (length > 0)
-    (*cinfo->src->skip_input_data) (cinfo, (long) length);
-
-  return TRUE;
-}
-
-
-/*
- * Find the next JPEG marker, save it in cinfo->unread_marker.
- * Returns FALSE if had to suspend before reaching a marker;
- * in that case cinfo->unread_marker is unchanged.
- *
- * Note that the result might not be a valid marker code,
- * but it will never be 0 or FF.
- */
-
-LOCAL(boolean)
-next_marker (j_decompress_ptr cinfo)
-{
-  int c;
-  INPUT_VARS(cinfo);
-
-  for (;;) {
-    INPUT_BYTE(cinfo, c, return FALSE);
-    /* Skip any non-FF bytes.
-     * This may look a bit inefficient, but it will not occur in a valid file.
-     * We sync after each discarded byte so that a suspending data source
-     * can discard the byte from its buffer.
-     */
-    while (c != 0xFF) {
-      cinfo->marker->discarded_bytes++;
-      INPUT_SYNC(cinfo);
-      INPUT_BYTE(cinfo, c, return FALSE);
-    }
-    /* This loop swallows any duplicate FF bytes.  Extra FFs are legal as
-     * pad bytes, so don't count them in discarded_bytes.  We assume there
-     * will not be so many consecutive FF bytes as to overflow a suspending
-     * data source's input buffer.
-     */
-    do {
-      INPUT_BYTE(cinfo, c, return FALSE);
-    } while (c == 0xFF);
-    if (c != 0)
-      break;			/* found a valid marker, exit loop */
-    /* Reach here if we found a stuffed-zero data sequence (FF/00).
-     * Discard it and loop back to try again.
-     */
-    cinfo->marker->discarded_bytes += 2;
-    INPUT_SYNC(cinfo);
-  }
-
-  if (cinfo->marker->discarded_bytes != 0) {
-    WARNMS2(cinfo, JWRN_EXTRANEOUS_DATA, cinfo->marker->discarded_bytes, c);
-    cinfo->marker->discarded_bytes = 0;
-  }
-
-  cinfo->unread_marker = c;
-
-  INPUT_SYNC(cinfo);
-  return TRUE;
-}
-
-
-LOCAL(boolean)
-first_marker (j_decompress_ptr cinfo)
-/* Like next_marker, but used to obtain the initial SOI marker. */
-/* For this marker, we do not allow preceding garbage or fill; otherwise,
- * we might well scan an entire input file before realizing it ain't JPEG.
- * If an application wants to process non-JFIF files, it must seek to the
- * SOI before calling the JPEG library.
- */
-{
-  int c, c2;
-  INPUT_VARS(cinfo);
-
-  INPUT_BYTE(cinfo, c, return FALSE);
-  INPUT_BYTE(cinfo, c2, return FALSE);
-  if (c != 0xFF || c2 != (int) M_SOI)
-    ERREXIT2(cinfo, JERR_NO_SOI, c, c2);
-
-  cinfo->unread_marker = c2;
-
-  INPUT_SYNC(cinfo);
-  return TRUE;
-}
-
-
-/*
- * Read markers until SOS or EOI.
- *
- * Returns same codes as are defined for jpeg_consume_input:
- * JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI.
- */
-
-METHODDEF(int)
-read_markers (j_decompress_ptr cinfo)
-{
-  /* Outer loop repeats once for each marker. */
-  for (;;) {
-    /* Collect the marker proper, unless we already did. */
-    /* NB: first_marker() enforces the requirement that SOI appear first. */
-    if (cinfo->unread_marker == 0) {
-      if (! cinfo->marker->saw_SOI) {
-	if (! first_marker(cinfo))
-	  return JPEG_SUSPENDED;
-      } else {
-	if (! next_marker(cinfo))
-	  return JPEG_SUSPENDED;
-      }
-    }
-    /* At this point cinfo->unread_marker contains the marker code and the
-     * input point is just past the marker proper, but before any parameters.
-     * A suspension will cause us to return with this state still true.
-     */
-    switch (cinfo->unread_marker) {
-    case M_SOI:
-      if (! get_soi(cinfo))
-	return JPEG_SUSPENDED;
-      break;
-
-    case M_SOF0:		/* Baseline */
-    case M_SOF1:		/* Extended sequential, Huffman */
-      if (! get_sof(cinfo, FALSE, FALSE))
-	return JPEG_SUSPENDED;
-      break;
-
-    case M_SOF2:		/* Progressive, Huffman */
-      if (! get_sof(cinfo, TRUE, FALSE))
-	return JPEG_SUSPENDED;
-      break;
-
-    case M_SOF9:		/* Extended sequential, arithmetic */
-      if (! get_sof(cinfo, FALSE, TRUE))
-	return JPEG_SUSPENDED;
-      break;
-
-    case M_SOF10:		/* Progressive, arithmetic */
-      if (! get_sof(cinfo, TRUE, TRUE))
-	return JPEG_SUSPENDED;
-      break;
-
-    /* Currently unsupported SOFn types */
-    case M_SOF3:		/* Lossless, Huffman */
-    case M_SOF5:		/* Differential sequential, Huffman */
-    case M_SOF6:		/* Differential progressive, Huffman */
-    case M_SOF7:		/* Differential lossless, Huffman */
-    case M_JPG:			/* Reserved for JPEG extensions */
-    case M_SOF11:		/* Lossless, arithmetic */
-    case M_SOF13:		/* Differential sequential, arithmetic */
-    case M_SOF14:		/* Differential progressive, arithmetic */
-    case M_SOF15:		/* Differential lossless, arithmetic */
-      ERREXIT1(cinfo, JERR_SOF_UNSUPPORTED, cinfo->unread_marker);
-      break;
-
-    case M_SOS:
-      if (! get_sos(cinfo))
-	return JPEG_SUSPENDED;
-      cinfo->unread_marker = 0;	/* processed the marker */
-      return JPEG_REACHED_SOS;
-    
-    case M_EOI:
-      TRACEMS(cinfo, 1, JTRC_EOI);
-      cinfo->unread_marker = 0;	/* processed the marker */
-      return JPEG_REACHED_EOI;
-      
-    case M_DAC:
-      if (! get_dac(cinfo))
-	return JPEG_SUSPENDED;
-      break;
-      
-    case M_DHT:
-      if (! get_dht(cinfo))
-	return JPEG_SUSPENDED;
-      break;
-      
-    case M_DQT:
-      if (! get_dqt(cinfo))
-	return JPEG_SUSPENDED;
-      break;
-      
-    case M_DRI:
-      if (! get_dri(cinfo))
-	return JPEG_SUSPENDED;
-      break;
-      
-    case M_APP0:
-    case M_APP1:
-    case M_APP2:
-    case M_APP3:
-    case M_APP4:
-    case M_APP5:
-    case M_APP6:
-    case M_APP7:
-    case M_APP8:
-    case M_APP9:
-    case M_APP10:
-    case M_APP11:
-    case M_APP12:
-    case M_APP13:
-    case M_APP14:
-    case M_APP15:
-      if (! (*((my_marker_ptr) cinfo->marker)->process_APPn[
-		cinfo->unread_marker - (int) M_APP0]) (cinfo))
-	return JPEG_SUSPENDED;
-      break;
-      
-    case M_COM:
-      if (! (*((my_marker_ptr) cinfo->marker)->process_COM) (cinfo))
-	return JPEG_SUSPENDED;
-      break;
-
-    case M_RST0:		/* these are all parameterless */
-    case M_RST1:
-    case M_RST2:
-    case M_RST3:
-    case M_RST4:
-    case M_RST5:
-    case M_RST6:
-    case M_RST7:
-    case M_TEM:
-      TRACEMS1(cinfo, 1, JTRC_PARMLESS_MARKER, cinfo->unread_marker);
-      break;
-
-    case M_DNL:			/* Ignore DNL ... perhaps the wrong thing */
-      if (! skip_variable(cinfo))
-	return JPEG_SUSPENDED;
-      break;
-
-    default:			/* must be DHP, EXP, JPGn, or RESn */
-      /* For now, we treat the reserved markers as fatal errors since they are
-       * likely to be used to signal incompatible JPEG Part 3 extensions.
-       * Once the JPEG 3 version-number marker is well defined, this code
-       * ought to change!
-       */
-      ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, cinfo->unread_marker);
-      break;
-    }
-    /* Successfully processed marker, so reset state variable */
-    cinfo->unread_marker = 0;
-  } /* end loop */
-}
-
-
-/*
- * Read a restart marker, which is expected to appear next in the datastream;
- * if the marker is not there, take appropriate recovery action.
- * Returns FALSE if suspension is required.
- *
- * This is called by the entropy decoder after it has read an appropriate
- * number of MCUs.  cinfo->unread_marker may be nonzero if the entropy decoder
- * has already read a marker from the data source.  Under normal conditions
- * cinfo->unread_marker will be reset to 0 before returning; if not reset,
- * it holds a marker which the decoder will be unable to read past.
- */
-
-METHODDEF(boolean)
-read_restart_marker (j_decompress_ptr cinfo)
-{
-  /* Obtain a marker unless we already did. */
-  /* Note that next_marker will complain if it skips any data. */
-  if (cinfo->unread_marker == 0) {
-    if (! next_marker(cinfo))
-      return FALSE;
-  }
-
-  if (cinfo->unread_marker ==
-      ((int) M_RST0 + cinfo->marker->next_restart_num)) {
-    /* Normal case --- swallow the marker and let entropy decoder continue */
-    TRACEMS1(cinfo, 3, JTRC_RST, cinfo->marker->next_restart_num);
-    cinfo->unread_marker = 0;
-  } else {
-    /* Uh-oh, the restart markers have been messed up. */
-    /* Let the data source manager determine how to resync. */
-    if (! (*cinfo->src->resync_to_restart) (cinfo,
-					    cinfo->marker->next_restart_num))
-      return FALSE;
-  }
-
-  /* Update next-restart state */
-  cinfo->marker->next_restart_num = (cinfo->marker->next_restart_num + 1) & 7;
-
-  return TRUE;
-}
-
-
-/*
- * This is the default resync_to_restart method for data source managers
- * to use if they don't have any better approach.  Some data source managers
- * may be able to back up, or may have additional knowledge about the data
- * which permits a more intelligent recovery strategy; such managers would
- * presumably supply their own resync method.
- *
- * read_restart_marker calls resync_to_restart if it finds a marker other than
- * the restart marker it was expecting.  (This code is *not* used unless
- * a nonzero restart interval has been declared.)  cinfo->unread_marker is
- * the marker code actually found (might be anything, except 0 or FF).
- * The desired restart marker number (0..7) is passed as a parameter.
- * This routine is supposed to apply whatever error recovery strategy seems
- * appropriate in order to position the input stream to the next data segment.
- * Note that cinfo->unread_marker is treated as a marker appearing before
- * the current data-source input point; usually it should be reset to zero
- * before returning.
- * Returns FALSE if suspension is required.
- *
- * This implementation is substantially constrained by wanting to treat the
- * input as a data stream; this means we can't back up.  Therefore, we have
- * only the following actions to work with:
- *   1. Simply discard the marker and let the entropy decoder resume at next
- *      byte of file.
- *   2. Read forward until we find another marker, discarding intervening
- *      data.  (In theory we could look ahead within the current bufferload,
- *      without having to discard data if we don't find the desired marker.
- *      This idea is not implemented here, in part because it makes behavior
- *      dependent on buffer size and chance buffer-boundary positions.)
- *   3. Leave the marker unread (by failing to zero cinfo->unread_marker).
- *      This will cause the entropy decoder to process an empty data segment,
- *      inserting dummy zeroes, and then we will reprocess the marker.
- *
- * #2 is appropriate if we think the desired marker lies ahead, while #3 is
- * appropriate if the found marker is a future restart marker (indicating
- * that we have missed the desired restart marker, probably because it got
- * corrupted).
- * We apply #2 or #3 if the found marker is a restart marker no more than
- * two counts behind or ahead of the expected one.  We also apply #2 if the
- * found marker is not a legal JPEG marker code (it's certainly bogus data).
- * If the found marker is a restart marker more than 2 counts away, we do #1
- * (too much risk that the marker is erroneous; with luck we will be able to
- * resync at some future point).
- * For any valid non-restart JPEG marker, we apply #3.  This keeps us from
- * overrunning the end of a scan.  An implementation limited to single-scan
- * files might find it better to apply #2 for markers other than EOI, since
- * any other marker would have to be bogus data in that case.
- */
-
-GLOBAL(boolean)
-jpeg_resync_to_restart (j_decompress_ptr cinfo, int desired)
-{
-  int marker = cinfo->unread_marker;
-  int action = 1;
-  
-  /* Always put up a warning. */
-  WARNMS2(cinfo, JWRN_MUST_RESYNC, marker, desired);
-  
-  /* Outer loop handles repeated decision after scanning forward. */
-  for (;;) {
-    if (marker < (int) M_SOF0)
-      action = 2;		/* invalid marker */
-    else if (marker < (int) M_RST0 || marker > (int) M_RST7)
-      action = 3;		/* valid non-restart marker */
-    else {
-      if (marker == ((int) M_RST0 + ((desired+1) & 7)) ||
-	  marker == ((int) M_RST0 + ((desired+2) & 7)))
-	action = 3;		/* one of the next two expected restarts */
-      else if (marker == ((int) M_RST0 + ((desired-1) & 7)) ||
-	       marker == ((int) M_RST0 + ((desired-2) & 7)))
-	action = 2;		/* a prior restart, so advance */
-      else
-	action = 1;		/* desired restart or too far away */
-    }
-    TRACEMS2(cinfo, 4, JTRC_RECOVERY_ACTION, marker, action);
-    switch (action) {
-    case 1:
-      /* Discard marker and let entropy decoder resume processing. */
-      cinfo->unread_marker = 0;
-      return TRUE;
-    case 2:
-      /* Scan to the next marker, and repeat the decision loop. */
-      if (! next_marker(cinfo))
-	return FALSE;
-      marker = cinfo->unread_marker;
-      break;
-    case 3:
-      /* Return without advancing past this marker. */
-      /* Entropy decoder will be forced to process an empty segment. */
-      return TRUE;
-    }
-  } /* end loop */
-}
-
-
-/*
- * Reset marker processing state to begin a fresh datastream.
- */
-
-METHODDEF(void)
-reset_marker_reader (j_decompress_ptr cinfo)
-{
-  my_marker_ptr marker = (my_marker_ptr) cinfo->marker;
-
-  cinfo->comp_info = NULL;		/* until allocated by get_sof */
-  cinfo->input_scan_number = 0;		/* no SOS seen yet */
-  cinfo->unread_marker = 0;		/* no pending marker */
-  marker->pub.saw_SOI = FALSE;		/* set internal state too */
-  marker->pub.saw_SOF = FALSE;
-  marker->pub.discarded_bytes = 0;
-  marker->cur_marker = NULL;
-}
-
-
-/*
- * Initialize the marker reader module.
- * This is called only once, when the decompression object is created.
- */
-
-GLOBAL(void)
-jinit_marker_reader (j_decompress_ptr cinfo)
-{
-  my_marker_ptr marker;
-  int i;
-
-  /* Create subobject in permanent pool */
-  marker = (my_marker_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
-				SIZEOF(my_marker_reader));
-  cinfo->marker = (struct jpeg_marker_reader *) marker;
-  /* Initialize public method pointers */
-  marker->pub.reset_marker_reader = reset_marker_reader;
-  marker->pub.read_markers = read_markers;
-  marker->pub.read_restart_marker = read_restart_marker;
-  /* Initialize COM/APPn processing.
-   * By default, we examine and then discard APP0 and APP14,
-   * but simply discard COM and all other APPn.
-   */
-  marker->process_COM = skip_variable;
-  marker->length_limit_COM = 0;
-  for (i = 0; i < 16; i++) {
-    marker->process_APPn[i] = skip_variable;
-    marker->length_limit_APPn[i] = 0;
-  }
-  marker->process_APPn[0] = get_interesting_appn;
-  marker->process_APPn[14] = get_interesting_appn;
-  /* Reset marker processing state */
-  reset_marker_reader(cinfo);
-}
-
-
-/*
- * Control saving of COM and APPn markers into marker_list.
- */
-
-#ifdef SAVE_MARKERS_SUPPORTED
-
-GLOBAL(void)
-jpeg_save_markers (j_decompress_ptr cinfo, int marker_code,
-		   unsigned int length_limit)
-{
-  my_marker_ptr marker = (my_marker_ptr) cinfo->marker;
-  long maxlength;
-  jpeg_marker_parser_method processor;
-
-  /* Length limit mustn't be larger than what we can allocate
-   * (should only be a concern in a 16-bit environment).
-   */
-  maxlength = cinfo->mem->max_alloc_chunk - SIZEOF(struct jpeg_marker_struct);
-  if (((long) length_limit) > maxlength)
-    length_limit = (unsigned int) maxlength;
-
-  /* Choose processor routine to use.
-   * APP0/APP14 have special requirements.
-   */
-  if (length_limit) {
-    processor = save_marker;
-    /* If saving APP0/APP14, save at least enough for our internal use. */
-    if (marker_code == (int) M_APP0 && length_limit < APP0_DATA_LEN)
-      length_limit = APP0_DATA_LEN;
-    else if (marker_code == (int) M_APP14 && length_limit < APP14_DATA_LEN)
-      length_limit = APP14_DATA_LEN;
-  } else {
-    processor = skip_variable;
-    /* If discarding APP0/APP14, use our regular on-the-fly processor. */
-    if (marker_code == (int) M_APP0 || marker_code == (int) M_APP14)
-      processor = get_interesting_appn;
-  }
-
-  if (marker_code == (int) M_COM) {
-    marker->process_COM = processor;
-    marker->length_limit_COM = length_limit;
-  } else if (marker_code >= (int) M_APP0 && marker_code <= (int) M_APP15) {
-    marker->process_APPn[marker_code - (int) M_APP0] = processor;
-    marker->length_limit_APPn[marker_code - (int) M_APP0] = length_limit;
-  } else
-    ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, marker_code);
-}
-
-#endif /* SAVE_MARKERS_SUPPORTED */
-
-
-/*
- * Install a special processing method for COM or APPn markers.
- */
-
-GLOBAL(void)
-jpeg_set_marker_processor (j_decompress_ptr cinfo, int marker_code,
-			   jpeg_marker_parser_method routine)
-{
-  my_marker_ptr marker = (my_marker_ptr) cinfo->marker;
-
-  if (marker_code == (int) M_COM)
-    marker->process_COM = routine;
-  else if (marker_code >= (int) M_APP0 && marker_code <= (int) M_APP15)
-    marker->process_APPn[marker_code - (int) M_APP0] = routine;
-  else
-    ERREXIT1(cinfo, JERR_UNKNOWN_MARKER, marker_code);
-}
diff --git a/src/3rdparty/libjpeg/jdmaster.c b/src/3rdparty/libjpeg/jdmaster.c
deleted file mode 100644
index 9c4901aa1..000000000
--- a/src/3rdparty/libjpeg/jdmaster.c
+++ /dev/null
@@ -1,557 +0,0 @@
-/*
- * jdmaster.c
- *
- * Copyright (C) 1991-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains master control logic for the JPEG decompressor.
- * These routines are concerned with selecting the modules to be executed
- * and with determining the number of passes and the work to be done in each
- * pass.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/* Private state */
-
-typedef struct {
-  struct jpeg_decomp_master pub; /* public fields */
-
-  int pass_number;		/* # of passes completed */
-
-  boolean using_merged_upsample; /* TRUE if using merged upsample/cconvert */
-
-  /* Saved references to initialized quantizer modules,
-   * in case we need to switch modes.
-   */
-  struct jpeg_color_quantizer * quantizer_1pass;
-  struct jpeg_color_quantizer * quantizer_2pass;
-} my_decomp_master;
-
-typedef my_decomp_master * my_master_ptr;
-
-
-/*
- * Determine whether merged upsample/color conversion should be used.
- * CRUCIAL: this must match the actual capabilities of jdmerge.c!
- */
-
-LOCAL(boolean)
-use_merged_upsample (j_decompress_ptr cinfo)
-{
-#ifdef UPSAMPLE_MERGING_SUPPORTED
-  /* Merging is the equivalent of plain box-filter upsampling */
-  if (cinfo->do_fancy_upsampling || cinfo->CCIR601_sampling)
-    return FALSE;
-  /* jdmerge.c only supports YCC=>RGB color conversion */
-  if (cinfo->jpeg_color_space != JCS_YCbCr || cinfo->num_components != 3 ||
-      cinfo->out_color_space != JCS_RGB ||
-      cinfo->out_color_components != RGB_PIXELSIZE)
-    return FALSE;
-  /* and it only handles 2h1v or 2h2v sampling ratios */
-  if (cinfo->comp_info[0].h_samp_factor != 2 ||
-      cinfo->comp_info[1].h_samp_factor != 1 ||
-      cinfo->comp_info[2].h_samp_factor != 1 ||
-      cinfo->comp_info[0].v_samp_factor >  2 ||
-      cinfo->comp_info[1].v_samp_factor != 1 ||
-      cinfo->comp_info[2].v_samp_factor != 1)
-    return FALSE;
-  /* furthermore, it doesn't work if we've scaled the IDCTs differently */
-  if (cinfo->comp_info[0].DCT_scaled_size != cinfo->min_DCT_scaled_size ||
-      cinfo->comp_info[1].DCT_scaled_size != cinfo->min_DCT_scaled_size ||
-      cinfo->comp_info[2].DCT_scaled_size != cinfo->min_DCT_scaled_size)
-    return FALSE;
-  /* ??? also need to test for upsample-time rescaling, when & if supported */
-  return TRUE;			/* by golly, it'll work... */
-#else
-  return FALSE;
-#endif
-}
-
-
-/*
- * Compute output image dimensions and related values.
- * NOTE: this is exported for possible use by application.
- * Hence it mustn't do anything that can't be done twice.
- * Also note that it may be called before the master module is initialized!
- */
-
-GLOBAL(void)
-jpeg_calc_output_dimensions (j_decompress_ptr cinfo)
-/* Do computations that are needed before master selection phase */
-{
-#ifdef IDCT_SCALING_SUPPORTED
-  int ci;
-  jpeg_component_info *compptr;
-#endif
-
-  /* Prevent application from calling me at wrong times */
-  if (cinfo->global_state != DSTATE_READY)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-
-#ifdef IDCT_SCALING_SUPPORTED
-
-  /* Compute actual output image dimensions and DCT scaling choices. */
-  if (cinfo->scale_num * 8 <= cinfo->scale_denom) {
-    /* Provide 1/8 scaling */
-    cinfo->output_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width, 8L);
-    cinfo->output_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height, 8L);
-    cinfo->min_DCT_scaled_size = 1;
-  } else if (cinfo->scale_num * 4 <= cinfo->scale_denom) {
-    /* Provide 1/4 scaling */
-    cinfo->output_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width, 4L);
-    cinfo->output_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height, 4L);
-    cinfo->min_DCT_scaled_size = 2;
-  } else if (cinfo->scale_num * 2 <= cinfo->scale_denom) {
-    /* Provide 1/2 scaling */
-    cinfo->output_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width, 2L);
-    cinfo->output_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height, 2L);
-    cinfo->min_DCT_scaled_size = 4;
-  } else {
-    /* Provide 1/1 scaling */
-    cinfo->output_width = cinfo->image_width;
-    cinfo->output_height = cinfo->image_height;
-    cinfo->min_DCT_scaled_size = DCTSIZE;
-  }
-  /* In selecting the actual DCT scaling for each component, we try to
-   * scale up the chroma components via IDCT scaling rather than upsampling.
-   * This saves time if the upsampler gets to use 1:1 scaling.
-   * Note this code assumes that the supported DCT scalings are powers of 2.
-   */
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    int ssize = cinfo->min_DCT_scaled_size;
-    while (ssize < DCTSIZE &&
-	   (compptr->h_samp_factor * ssize * 2 <=
-	    cinfo->max_h_samp_factor * cinfo->min_DCT_scaled_size) &&
-	   (compptr->v_samp_factor * ssize * 2 <=
-	    cinfo->max_v_samp_factor * cinfo->min_DCT_scaled_size)) {
-      ssize = ssize * 2;
-    }
-    compptr->DCT_scaled_size = ssize;
-  }
-
-  /* Recompute downsampled dimensions of components;
-   * application needs to know these if using raw downsampled data.
-   */
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    /* Size in samples, after IDCT scaling */
-    compptr->downsampled_width = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_width *
-		    (long) (compptr->h_samp_factor * compptr->DCT_scaled_size),
-		    (long) (cinfo->max_h_samp_factor * DCTSIZE));
-    compptr->downsampled_height = (JDIMENSION)
-      jdiv_round_up((long) cinfo->image_height *
-		    (long) (compptr->v_samp_factor * compptr->DCT_scaled_size),
-		    (long) (cinfo->max_v_samp_factor * DCTSIZE));
-  }
-
-#else /* !IDCT_SCALING_SUPPORTED */
-
-  /* Hardwire it to "no scaling" */
-  cinfo->output_width = cinfo->image_width;
-  cinfo->output_height = cinfo->image_height;
-  /* jdinput.c has already initialized DCT_scaled_size to DCTSIZE,
-   * and has computed unscaled downsampled_width and downsampled_height.
-   */
-
-#endif /* IDCT_SCALING_SUPPORTED */
-
-  /* Report number of components in selected colorspace. */
-  /* Probably this should be in the color conversion module... */
-  switch (cinfo->out_color_space) {
-  case JCS_GRAYSCALE:
-    cinfo->out_color_components = 1;
-    break;
-  case JCS_RGB:
-#if RGB_PIXELSIZE != 3
-    cinfo->out_color_components = RGB_PIXELSIZE;
-    break;
-#endif /* else share code with YCbCr */
-  case JCS_YCbCr:
-    cinfo->out_color_components = 3;
-    break;
-  case JCS_CMYK:
-  case JCS_YCCK:
-    cinfo->out_color_components = 4;
-    break;
-  default:			/* else must be same colorspace as in file */
-    cinfo->out_color_components = cinfo->num_components;
-    break;
-  }
-  cinfo->output_components = (cinfo->quantize_colors ? 1 :
-			      cinfo->out_color_components);
-
-  /* See if upsampler will want to emit more than one row at a time */
-  if (use_merged_upsample(cinfo))
-    cinfo->rec_outbuf_height = cinfo->max_v_samp_factor;
-  else
-    cinfo->rec_outbuf_height = 1;
-}
-
-
-/*
- * Several decompression processes need to range-limit values to the range
- * 0..MAXJSAMPLE; the input value may fall somewhat outside this range
- * due to noise introduced by quantization, roundoff error, etc.  These
- * processes are inner loops and need to be as fast as possible.  On most
- * machines, particularly CPUs with pipelines or instruction prefetch,
- * a (subscript-check-less) C table lookup
- *		x = sample_range_limit[x];
- * is faster than explicit tests
- *		if (x < 0)  x = 0;
- *		else if (x > MAXJSAMPLE)  x = MAXJSAMPLE;
- * These processes all use a common table prepared by the routine below.
- *
- * For most steps we can mathematically guarantee that the initial value
- * of x is within MAXJSAMPLE+1 of the legal range, so a table running from
- * -(MAXJSAMPLE+1) to 2*MAXJSAMPLE+1 is sufficient.  But for the initial
- * limiting step (just after the IDCT), a wildly out-of-range value is 
- * possible if the input data is corrupt.  To avoid any chance of indexing
- * off the end of memory and getting a bad-pointer trap, we perform the
- * post-IDCT limiting thus:
- *		x = range_limit[x & MASK];
- * where MASK is 2 bits wider than legal sample data, ie 10 bits for 8-bit
- * samples.  Under normal circumstances this is more than enough range and
- * a correct output will be generated; with bogus input data the mask will
- * cause wraparound, and we will safely generate a bogus-but-in-range output.
- * For the post-IDCT step, we want to convert the data from signed to unsigned
- * representation by adding CENTERJSAMPLE at the same time that we limit it.
- * So the post-IDCT limiting table ends up looking like this:
- *   CENTERJSAMPLE,CENTERJSAMPLE+1,...,MAXJSAMPLE,
- *   MAXJSAMPLE (repeat 2*(MAXJSAMPLE+1)-CENTERJSAMPLE times),
- *   0          (repeat 2*(MAXJSAMPLE+1)-CENTERJSAMPLE times),
- *   0,1,...,CENTERJSAMPLE-1
- * Negative inputs select values from the upper half of the table after
- * masking.
- *
- * We can save some space by overlapping the start of the post-IDCT table
- * with the simpler range limiting table.  The post-IDCT table begins at
- * sample_range_limit + CENTERJSAMPLE.
- *
- * Note that the table is allocated in near data space on PCs; it's small
- * enough and used often enough to justify this.
- */
-
-LOCAL(void)
-prepare_range_limit_table (j_decompress_ptr cinfo)
-/* Allocate and fill in the sample_range_limit table */
-{
-  JSAMPLE * table;
-  int i;
-
-  table = (JSAMPLE *)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-		(5 * (MAXJSAMPLE+1) + CENTERJSAMPLE) * SIZEOF(JSAMPLE));
-  table += (MAXJSAMPLE+1);	/* allow negative subscripts of simple table */
-  cinfo->sample_range_limit = table;
-  /* First segment of "simple" table: limit[x] = 0 for x < 0 */
-  MEMZERO(table - (MAXJSAMPLE+1), (MAXJSAMPLE+1) * SIZEOF(JSAMPLE));
-  /* Main part of "simple" table: limit[x] = x */
-  for (i = 0; i <= MAXJSAMPLE; i++)
-    table[i] = (JSAMPLE) i;
-  table += CENTERJSAMPLE;	/* Point to where post-IDCT table starts */
-  /* End of simple table, rest of first half of post-IDCT table */
-  for (i = CENTERJSAMPLE; i < 2*(MAXJSAMPLE+1); i++)
-    table[i] = MAXJSAMPLE;
-  /* Second half of post-IDCT table */
-  MEMZERO(table + (2 * (MAXJSAMPLE+1)),
-	  (2 * (MAXJSAMPLE+1) - CENTERJSAMPLE) * SIZEOF(JSAMPLE));
-  MEMCOPY(table + (4 * (MAXJSAMPLE+1) - CENTERJSAMPLE),
-	  cinfo->sample_range_limit, CENTERJSAMPLE * SIZEOF(JSAMPLE));
-}
-
-
-/*
- * Master selection of decompression modules.
- * This is done once at jpeg_start_decompress time.  We determine
- * which modules will be used and give them appropriate initialization calls.
- * We also initialize the decompressor input side to begin consuming data.
- *
- * Since jpeg_read_header has finished, we know what is in the SOF
- * and (first) SOS markers.  We also have all the application parameter
- * settings.
- */
-
-LOCAL(void)
-master_selection (j_decompress_ptr cinfo)
-{
-  my_master_ptr master = (my_master_ptr) cinfo->master;
-  boolean use_c_buffer;
-  long samplesperrow;
-  JDIMENSION jd_samplesperrow;
-
-  /* Initialize dimensions and other stuff */
-  jpeg_calc_output_dimensions(cinfo);
-  prepare_range_limit_table(cinfo);
-
-  /* Width of an output scanline must be representable as JDIMENSION. */
-  samplesperrow = (long) cinfo->output_width * (long) cinfo->out_color_components;
-  jd_samplesperrow = (JDIMENSION) samplesperrow;
-  if ((long) jd_samplesperrow != samplesperrow)
-    ERREXIT(cinfo, JERR_WIDTH_OVERFLOW);
-
-  /* Initialize my private state */
-  master->pass_number = 0;
-  master->using_merged_upsample = use_merged_upsample(cinfo);
-
-  /* Color quantizer selection */
-  master->quantizer_1pass = NULL;
-  master->quantizer_2pass = NULL;
-  /* No mode changes if not using buffered-image mode. */
-  if (! cinfo->quantize_colors || ! cinfo->buffered_image) {
-    cinfo->enable_1pass_quant = FALSE;
-    cinfo->enable_external_quant = FALSE;
-    cinfo->enable_2pass_quant = FALSE;
-  }
-  if (cinfo->quantize_colors) {
-    if (cinfo->raw_data_out)
-      ERREXIT(cinfo, JERR_NOTIMPL);
-    /* 2-pass quantizer only works in 3-component color space. */
-    if (cinfo->out_color_components != 3) {
-      cinfo->enable_1pass_quant = TRUE;
-      cinfo->enable_external_quant = FALSE;
-      cinfo->enable_2pass_quant = FALSE;
-      cinfo->colormap = NULL;
-    } else if (cinfo->colormap != NULL) {
-      cinfo->enable_external_quant = TRUE;
-    } else if (cinfo->two_pass_quantize) {
-      cinfo->enable_2pass_quant = TRUE;
-    } else {
-      cinfo->enable_1pass_quant = TRUE;
-    }
-
-    if (cinfo->enable_1pass_quant) {
-#ifdef TQUANT_1PASS_SUPPORTED
-      jinit_1pass_quantizer(cinfo);
-      master->quantizer_1pass = cinfo->cquantize;
-#else
-      ERREXIT(cinfo, JERR_NOT_COMPILED);
-#endif
-    }
-
-    /* We use the 2-pass code to map to external colormaps. */
-    if (cinfo->enable_2pass_quant || cinfo->enable_external_quant) {
-#ifdef TQUANT_2PASS_SUPPORTED
-      jinit_2pass_quantizer(cinfo);
-      master->quantizer_2pass = cinfo->cquantize;
-#else
-      ERREXIT(cinfo, JERR_NOT_COMPILED);
-#endif
-    }
-    /* If both quantizers are initialized, the 2-pass one is left active;
-     * this is necessary for starting with quantization to an external map.
-     */
-  }
-
-  /* Post-processing: in particular, color conversion first */
-  if (! cinfo->raw_data_out) {
-    if (master->using_merged_upsample) {
-#ifdef UPSAMPLE_MERGING_SUPPORTED
-      jinit_merged_upsampler(cinfo); /* does color conversion too */
-#else
-      ERREXIT(cinfo, JERR_NOT_COMPILED);
-#endif
-    } else {
-      jinit_color_deconverter(cinfo);
-      jinit_upsampler(cinfo);
-    }
-    jinit_d_post_controller(cinfo, cinfo->enable_2pass_quant);
-  }
-  /* Inverse DCT */
-  jinit_inverse_dct(cinfo);
-  /* Entropy decoding: either Huffman or arithmetic coding. */
-  if (cinfo->arith_code) {
-    ERREXIT(cinfo, JERR_ARITH_NOTIMPL);
-  } else {
-    if (cinfo->progressive_mode) {
-#ifdef D_PROGRESSIVE_SUPPORTED
-      jinit_phuff_decoder(cinfo);
-#else
-      ERREXIT(cinfo, JERR_NOT_COMPILED);
-#endif
-    } else
-      jinit_huff_decoder(cinfo);
-  }
-
-  /* Initialize principal buffer controllers. */
-  use_c_buffer = cinfo->inputctl->has_multiple_scans || cinfo->buffered_image;
-  jinit_d_coef_controller(cinfo, use_c_buffer);
-
-  if (! cinfo->raw_data_out)
-    jinit_d_main_controller(cinfo, FALSE /* never need full buffer here */);
-
-  /* We can now tell the memory manager to allocate virtual arrays. */
-  (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo);
-
-  /* Initialize input side of decompressor to consume first scan. */
-  (*cinfo->inputctl->start_input_pass) (cinfo);
-
-#ifdef D_MULTISCAN_FILES_SUPPORTED
-  /* If jpeg_start_decompress will read the whole file, initialize
-   * progress monitoring appropriately.  The input step is counted
-   * as one pass.
-   */
-  if (cinfo->progress != NULL && ! cinfo->buffered_image &&
-      cinfo->inputctl->has_multiple_scans) {
-    int nscans;
-    /* Estimate number of scans to set pass_limit. */
-    if (cinfo->progressive_mode) {
-      /* Arbitrarily estimate 2 interleaved DC scans + 3 AC scans/component. */
-      nscans = 2 + 3 * cinfo->num_components;
-    } else {
-      /* For a nonprogressive multiscan file, estimate 1 scan per component. */
-      nscans = cinfo->num_components;
-    }
-    cinfo->progress->pass_counter = 0L;
-    cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows * nscans;
-    cinfo->progress->completed_passes = 0;
-    cinfo->progress->total_passes = (cinfo->enable_2pass_quant ? 3 : 2);
-    /* Count the input pass as done */
-    master->pass_number++;
-  }
-#endif /* D_MULTISCAN_FILES_SUPPORTED */
-}
-
-
-/*
- * Per-pass setup.
- * This is called at the beginning of each output pass.  We determine which
- * modules will be active during this pass and give them appropriate
- * start_pass calls.  We also set is_dummy_pass to indicate whether this
- * is a "real" output pass or a dummy pass for color quantization.
- * (In the latter case, jdapistd.c will crank the pass to completion.)
- */
-
-METHODDEF(void)
-prepare_for_output_pass (j_decompress_ptr cinfo)
-{
-  my_master_ptr master = (my_master_ptr) cinfo->master;
-
-  if (master->pub.is_dummy_pass) {
-#ifdef TQUANT_2PASS_SUPPORTED
-    /* Final pass of 2-pass quantization */
-    master->pub.is_dummy_pass = FALSE;
-    (*cinfo->cquantize->start_pass) (cinfo, FALSE);
-    (*cinfo->post->start_pass) (cinfo, JBUF_CRANK_DEST);
-    (*cinfo->main->start_pass) (cinfo, JBUF_CRANK_DEST);
-#else
-    ERREXIT(cinfo, JERR_NOT_COMPILED);
-#endif /* TQUANT_2PASS_SUPPORTED */
-  } else {
-    if (cinfo->quantize_colors && cinfo->colormap == NULL) {
-      /* Select new quantization method */
-      if (cinfo->two_pass_quantize && cinfo->enable_2pass_quant) {
-	cinfo->cquantize = master->quantizer_2pass;
-	master->pub.is_dummy_pass = TRUE;
-      } else if (cinfo->enable_1pass_quant) {
-	cinfo->cquantize = master->quantizer_1pass;
-      } else {
-	ERREXIT(cinfo, JERR_MODE_CHANGE);
-      }
-    }
-    (*cinfo->idct->start_pass) (cinfo);
-    (*cinfo->coef->start_output_pass) (cinfo);
-    if (! cinfo->raw_data_out) {
-      if (! master->using_merged_upsample)
-	(*cinfo->cconvert->start_pass) (cinfo);
-      (*cinfo->upsample->start_pass) (cinfo);
-      if (cinfo->quantize_colors)
-	(*cinfo->cquantize->start_pass) (cinfo, master->pub.is_dummy_pass);
-      (*cinfo->post->start_pass) (cinfo,
-	    (master->pub.is_dummy_pass ? JBUF_SAVE_AND_PASS : JBUF_PASS_THRU));
-      (*cinfo->main->start_pass) (cinfo, JBUF_PASS_THRU);
-    }
-  }
-
-  /* Set up progress monitor's pass info if present */
-  if (cinfo->progress != NULL) {
-    cinfo->progress->completed_passes = master->pass_number;
-    cinfo->progress->total_passes = master->pass_number +
-				    (master->pub.is_dummy_pass ? 2 : 1);
-    /* In buffered-image mode, we assume one more output pass if EOI not
-     * yet reached, but no more passes if EOI has been reached.
-     */
-    if (cinfo->buffered_image && ! cinfo->inputctl->eoi_reached) {
-      cinfo->progress->total_passes += (cinfo->enable_2pass_quant ? 2 : 1);
-    }
-  }
-}
-
-
-/*
- * Finish up at end of an output pass.
- */
-
-METHODDEF(void)
-finish_output_pass (j_decompress_ptr cinfo)
-{
-  my_master_ptr master = (my_master_ptr) cinfo->master;
-
-  if (cinfo->quantize_colors)
-    (*cinfo->cquantize->finish_pass) (cinfo);
-  master->pass_number++;
-}
-
-
-#ifdef D_MULTISCAN_FILES_SUPPORTED
-
-/*
- * Switch to a new external colormap between output passes.
- */
-
-GLOBAL(void)
-jpeg_new_colormap (j_decompress_ptr cinfo)
-{
-  my_master_ptr master = (my_master_ptr) cinfo->master;
-
-  /* Prevent application from calling me at wrong times */
-  if (cinfo->global_state != DSTATE_BUFIMAGE)
-    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-
-  if (cinfo->quantize_colors && cinfo->enable_external_quant &&
-      cinfo->colormap != NULL) {
-    /* Select 2-pass quantizer for external colormap use */
-    cinfo->cquantize = master->quantizer_2pass;
-    /* Notify quantizer of colormap change */
-    (*cinfo->cquantize->new_color_map) (cinfo);
-    master->pub.is_dummy_pass = FALSE; /* just in case */
-  } else
-    ERREXIT(cinfo, JERR_MODE_CHANGE);
-}
-
-#endif /* D_MULTISCAN_FILES_SUPPORTED */
-
-
-/*
- * Initialize master decompression control and select active modules.
- * This is performed at the start of jpeg_start_decompress.
- */
-
-GLOBAL(void)
-jinit_master_decompress (j_decompress_ptr cinfo)
-{
-  my_master_ptr master;
-
-  master = (my_master_ptr)
-      (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				  SIZEOF(my_decomp_master));
-  cinfo->master = (struct jpeg_decomp_master *) master;
-  master->pub.prepare_for_output_pass = prepare_for_output_pass;
-  master->pub.finish_output_pass = finish_output_pass;
-
-  master->pub.is_dummy_pass = FALSE;
-
-  master_selection(cinfo);
-}
diff --git a/src/3rdparty/libjpeg/jdmerge.c b/src/3rdparty/libjpeg/jdmerge.c
deleted file mode 100644
index 37444468c..000000000
--- a/src/3rdparty/libjpeg/jdmerge.c
+++ /dev/null
@@ -1,400 +0,0 @@
-/*
- * jdmerge.c
- *
- * Copyright (C) 1994-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains code for merged upsampling/color conversion.
- *
- * This file combines functions from jdsample.c and jdcolor.c;
- * read those files first to understand what's going on.
- *
- * When the chroma components are to be upsampled by simple replication
- * (ie, box filtering), we can save some work in color conversion by
- * calculating all the output pixels corresponding to a pair of chroma
- * samples at one time.  In the conversion equations
- *	R = Y           + K1 * Cr
- *	G = Y + K2 * Cb + K3 * Cr
- *	B = Y + K4 * Cb
- * only the Y term varies among the group of pixels corresponding to a pair
- * of chroma samples, so the rest of the terms can be calculated just once.
- * At typical sampling ratios, this eliminates half or three-quarters of the
- * multiplications needed for color conversion.
- *
- * This file currently provides implementations for the following cases:
- *	YCbCr => RGB color conversion only.
- *	Sampling ratios of 2h1v or 2h2v.
- *	No scaling needed at upsample time.
- *	Corner-aligned (non-CCIR601) sampling alignment.
- * Other special cases could be added, but in most applications these are
- * the only common cases.  (For uncommon cases we fall back on the more
- * general code in jdsample.c and jdcolor.c.)
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-#ifdef UPSAMPLE_MERGING_SUPPORTED
-
-
-/* Private subobject */
-
-typedef struct {
-  struct jpeg_upsampler pub;	/* public fields */
-
-  /* Pointer to routine to do actual upsampling/conversion of one row group */
-  JMETHOD(void, upmethod, (j_decompress_ptr cinfo,
-			   JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr,
-			   JSAMPARRAY output_buf));
-
-  /* Private state for YCC->RGB conversion */
-  int * Cr_r_tab;		/* => table for Cr to R conversion */
-  int * Cb_b_tab;		/* => table for Cb to B conversion */
-  INT32 * Cr_g_tab;		/* => table for Cr to G conversion */
-  INT32 * Cb_g_tab;		/* => table for Cb to G conversion */
-
-  /* For 2:1 vertical sampling, we produce two output rows at a time.
-   * We need a "spare" row buffer to hold the second output row if the
-   * application provides just a one-row buffer; we also use the spare
-   * to discard the dummy last row if the image height is odd.
-   */
-  JSAMPROW spare_row;
-  boolean spare_full;		/* T if spare buffer is occupied */
-
-  JDIMENSION out_row_width;	/* samples per output row */
-  JDIMENSION rows_to_go;	/* counts rows remaining in image */
-} my_upsampler;
-
-typedef my_upsampler * my_upsample_ptr;
-
-#define SCALEBITS	16	/* speediest right-shift on some machines */
-#define ONE_HALF	((INT32) 1 << (SCALEBITS-1))
-#define FIX(x)		((INT32) ((x) * (1L<<SCALEBITS) + 0.5))
-
-
-/*
- * Initialize tables for YCC->RGB colorspace conversion.
- * This is taken directly from jdcolor.c; see that file for more info.
- */
-
-LOCAL(void)
-build_ycc_rgb_table (j_decompress_ptr cinfo)
-{
-  my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample;
-  int i;
-  INT32 x;
-  SHIFT_TEMPS
-
-  upsample->Cr_r_tab = (int *)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				(MAXJSAMPLE+1) * SIZEOF(int));
-  upsample->Cb_b_tab = (int *)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				(MAXJSAMPLE+1) * SIZEOF(int));
-  upsample->Cr_g_tab = (INT32 *)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				(MAXJSAMPLE+1) * SIZEOF(INT32));
-  upsample->Cb_g_tab = (INT32 *)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				(MAXJSAMPLE+1) * SIZEOF(INT32));
-
-  for (i = 0, x = -CENTERJSAMPLE; i <= MAXJSAMPLE; i++, x++) {
-    /* i is the actual input pixel value, in the range 0..MAXJSAMPLE */
-    /* The Cb or Cr value we are thinking of is x = i - CENTERJSAMPLE */
-    /* Cr=>R value is nearest int to 1.40200 * x */
-    upsample->Cr_r_tab[i] = (int)
-		    RIGHT_SHIFT(FIX(1.40200) * x + ONE_HALF, SCALEBITS);
-    /* Cb=>B value is nearest int to 1.77200 * x */
-    upsample->Cb_b_tab[i] = (int)
-		    RIGHT_SHIFT(FIX(1.77200) * x + ONE_HALF, SCALEBITS);
-    /* Cr=>G value is scaled-up -0.71414 * x */
-    upsample->Cr_g_tab[i] = (- FIX(0.71414)) * x;
-    /* Cb=>G value is scaled-up -0.34414 * x */
-    /* We also add in ONE_HALF so that need not do it in inner loop */
-    upsample->Cb_g_tab[i] = (- FIX(0.34414)) * x + ONE_HALF;
-  }
-}
-
-
-/*
- * Initialize for an upsampling pass.
- */
-
-METHODDEF(void)
-start_pass_merged_upsample (j_decompress_ptr cinfo)
-{
-  my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample;
-
-  /* Mark the spare buffer empty */
-  upsample->spare_full = FALSE;
-  /* Initialize total-height counter for detecting bottom of image */
-  upsample->rows_to_go = cinfo->output_height;
-}
-
-
-/*
- * Control routine to do upsampling (and color conversion).
- *
- * The control routine just handles the row buffering considerations.
- */
-
-METHODDEF(void)
-merged_2v_upsample (j_decompress_ptr cinfo,
-		    JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr,
-		    JDIMENSION in_row_groups_avail,
-		    JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-		    JDIMENSION out_rows_avail)
-/* 2:1 vertical sampling case: may need a spare row. */
-{
-  my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample;
-  JSAMPROW work_ptrs[2];
-  JDIMENSION num_rows;		/* number of rows returned to caller */
-
-  if (upsample->spare_full) {
-    /* If we have a spare row saved from a previous cycle, just return it. */
-    jcopy_sample_rows(& upsample->spare_row, 0, output_buf + *out_row_ctr, 0,
-		      1, upsample->out_row_width);
-    num_rows = 1;
-    upsample->spare_full = FALSE;
-  } else {
-    /* Figure number of rows to return to caller. */
-    num_rows = 2;
-    /* Not more than the distance to the end of the image. */
-    if (num_rows > upsample->rows_to_go)
-      num_rows = upsample->rows_to_go;
-    /* And not more than what the client can accept: */
-    out_rows_avail -= *out_row_ctr;
-    if (num_rows > out_rows_avail)
-      num_rows = out_rows_avail;
-    /* Create output pointer array for upsampler. */
-    work_ptrs[0] = output_buf[*out_row_ctr];
-    if (num_rows > 1) {
-      work_ptrs[1] = output_buf[*out_row_ctr + 1];
-    } else {
-      work_ptrs[1] = upsample->spare_row;
-      upsample->spare_full = TRUE;
-    }
-    /* Now do the upsampling. */
-    (*upsample->upmethod) (cinfo, input_buf, *in_row_group_ctr, work_ptrs);
-  }
-
-  /* Adjust counts */
-  *out_row_ctr += num_rows;
-  upsample->rows_to_go -= num_rows;
-  /* When the buffer is emptied, declare this input row group consumed */
-  if (! upsample->spare_full)
-    (*in_row_group_ctr)++;
-}
-
-
-METHODDEF(void)
-merged_1v_upsample (j_decompress_ptr cinfo,
-		    JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr,
-		    JDIMENSION in_row_groups_avail,
-		    JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-		    JDIMENSION out_rows_avail)
-/* 1:1 vertical sampling case: much easier, never need a spare row. */
-{
-  my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample;
-
-  /* Just do the upsampling. */
-  (*upsample->upmethod) (cinfo, input_buf, *in_row_group_ctr,
-			 output_buf + *out_row_ctr);
-  /* Adjust counts */
-  (*out_row_ctr)++;
-  (*in_row_group_ctr)++;
-}
-
-
-/*
- * These are the routines invoked by the control routines to do
- * the actual upsampling/conversion.  One row group is processed per call.
- *
- * Note: since we may be writing directly into application-supplied buffers,
- * we have to be honest about the output width; we can't assume the buffer
- * has been rounded up to an even width.
- */
-
-
-/*
- * Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical.
- */
-
-METHODDEF(void)
-h2v1_merged_upsample (j_decompress_ptr cinfo,
-		      JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr,
-		      JSAMPARRAY output_buf)
-{
-  my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample;
-  register int y, cred, cgreen, cblue;
-  int cb, cr;
-  register JSAMPROW outptr;
-  JSAMPROW inptr0, inptr1, inptr2;
-  JDIMENSION col;
-  /* copy these pointers into registers if possible */
-  register JSAMPLE * range_limit = cinfo->sample_range_limit;
-  int * Crrtab = upsample->Cr_r_tab;
-  int * Cbbtab = upsample->Cb_b_tab;
-  INT32 * Crgtab = upsample->Cr_g_tab;
-  INT32 * Cbgtab = upsample->Cb_g_tab;
-  SHIFT_TEMPS
-
-  inptr0 = input_buf[0][in_row_group_ctr];
-  inptr1 = input_buf[1][in_row_group_ctr];
-  inptr2 = input_buf[2][in_row_group_ctr];
-  outptr = output_buf[0];
-  /* Loop for each pair of output pixels */
-  for (col = cinfo->output_width >> 1; col > 0; col--) {
-    /* Do the chroma part of the calculation */
-    cb = GETJSAMPLE(*inptr1++);
-    cr = GETJSAMPLE(*inptr2++);
-    cred = Crrtab[cr];
-    cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
-    cblue = Cbbtab[cb];
-    /* Fetch 2 Y values and emit 2 pixels */
-    y  = GETJSAMPLE(*inptr0++);
-    outptr[RGB_RED] =   range_limit[y + cred];
-    outptr[RGB_GREEN] = range_limit[y + cgreen];
-    outptr[RGB_BLUE] =  range_limit[y + cblue];
-    outptr += RGB_PIXELSIZE;
-    y  = GETJSAMPLE(*inptr0++);
-    outptr[RGB_RED] =   range_limit[y + cred];
-    outptr[RGB_GREEN] = range_limit[y + cgreen];
-    outptr[RGB_BLUE] =  range_limit[y + cblue];
-    outptr += RGB_PIXELSIZE;
-  }
-  /* If image width is odd, do the last output column separately */
-  if (cinfo->output_width & 1) {
-    cb = GETJSAMPLE(*inptr1);
-    cr = GETJSAMPLE(*inptr2);
-    cred = Crrtab[cr];
-    cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
-    cblue = Cbbtab[cb];
-    y  = GETJSAMPLE(*inptr0);
-    outptr[RGB_RED] =   range_limit[y + cred];
-    outptr[RGB_GREEN] = range_limit[y + cgreen];
-    outptr[RGB_BLUE] =  range_limit[y + cblue];
-  }
-}
-
-
-/*
- * Upsample and color convert for the case of 2:1 horizontal and 2:1 vertical.
- */
-
-METHODDEF(void)
-h2v2_merged_upsample (j_decompress_ptr cinfo,
-		      JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr,
-		      JSAMPARRAY output_buf)
-{
-  my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample;
-  register int y, cred, cgreen, cblue;
-  int cb, cr;
-  register JSAMPROW outptr0, outptr1;
-  JSAMPROW inptr00, inptr01, inptr1, inptr2;
-  JDIMENSION col;
-  /* copy these pointers into registers if possible */
-  register JSAMPLE * range_limit = cinfo->sample_range_limit;
-  int * Crrtab = upsample->Cr_r_tab;
-  int * Cbbtab = upsample->Cb_b_tab;
-  INT32 * Crgtab = upsample->Cr_g_tab;
-  INT32 * Cbgtab = upsample->Cb_g_tab;
-  SHIFT_TEMPS
-
-  inptr00 = input_buf[0][in_row_group_ctr*2];
-  inptr01 = input_buf[0][in_row_group_ctr*2 + 1];
-  inptr1 = input_buf[1][in_row_group_ctr];
-  inptr2 = input_buf[2][in_row_group_ctr];
-  outptr0 = output_buf[0];
-  outptr1 = output_buf[1];
-  /* Loop for each group of output pixels */
-  for (col = cinfo->output_width >> 1; col > 0; col--) {
-    /* Do the chroma part of the calculation */
-    cb = GETJSAMPLE(*inptr1++);
-    cr = GETJSAMPLE(*inptr2++);
-    cred = Crrtab[cr];
-    cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
-    cblue = Cbbtab[cb];
-    /* Fetch 4 Y values and emit 4 pixels */
-    y  = GETJSAMPLE(*inptr00++);
-    outptr0[RGB_RED] =   range_limit[y + cred];
-    outptr0[RGB_GREEN] = range_limit[y + cgreen];
-    outptr0[RGB_BLUE] =  range_limit[y + cblue];
-    outptr0 += RGB_PIXELSIZE;
-    y  = GETJSAMPLE(*inptr00++);
-    outptr0[RGB_RED] =   range_limit[y + cred];
-    outptr0[RGB_GREEN] = range_limit[y + cgreen];
-    outptr0[RGB_BLUE] =  range_limit[y + cblue];
-    outptr0 += RGB_PIXELSIZE;
-    y  = GETJSAMPLE(*inptr01++);
-    outptr1[RGB_RED] =   range_limit[y + cred];
-    outptr1[RGB_GREEN] = range_limit[y + cgreen];
-    outptr1[RGB_BLUE] =  range_limit[y + cblue];
-    outptr1 += RGB_PIXELSIZE;
-    y  = GETJSAMPLE(*inptr01++);
-    outptr1[RGB_RED] =   range_limit[y + cred];
-    outptr1[RGB_GREEN] = range_limit[y + cgreen];
-    outptr1[RGB_BLUE] =  range_limit[y + cblue];
-    outptr1 += RGB_PIXELSIZE;
-  }
-  /* If image width is odd, do the last output column separately */
-  if (cinfo->output_width & 1) {
-    cb = GETJSAMPLE(*inptr1);
-    cr = GETJSAMPLE(*inptr2);
-    cred = Crrtab[cr];
-    cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
-    cblue = Cbbtab[cb];
-    y  = GETJSAMPLE(*inptr00);
-    outptr0[RGB_RED] =   range_limit[y + cred];
-    outptr0[RGB_GREEN] = range_limit[y + cgreen];
-    outptr0[RGB_BLUE] =  range_limit[y + cblue];
-    y  = GETJSAMPLE(*inptr01);
-    outptr1[RGB_RED] =   range_limit[y + cred];
-    outptr1[RGB_GREEN] = range_limit[y + cgreen];
-    outptr1[RGB_BLUE] =  range_limit[y + cblue];
-  }
-}
-
-
-/*
- * Module initialization routine for merged upsampling/color conversion.
- *
- * NB: this is called under the conditions determined by use_merged_upsample()
- * in jdmaster.c.  That routine MUST correspond to the actual capabilities
- * of this module; no safety checks are made here.
- */
-
-GLOBAL(void)
-jinit_merged_upsampler (j_decompress_ptr cinfo)
-{
-  my_upsample_ptr upsample;
-
-  upsample = (my_upsample_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_upsampler));
-  cinfo->upsample = (struct jpeg_upsampler *) upsample;
-  upsample->pub.start_pass = start_pass_merged_upsample;
-  upsample->pub.need_context_rows = FALSE;
-
-  upsample->out_row_width = cinfo->output_width * cinfo->out_color_components;
-
-  if (cinfo->max_v_samp_factor == 2) {
-    upsample->pub.upsample = merged_2v_upsample;
-    upsample->upmethod = h2v2_merged_upsample;
-    /* Allocate a spare row buffer */
-    upsample->spare_row = (JSAMPROW)
-      (*cinfo->mem->alloc_large) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-		(size_t) (upsample->out_row_width * SIZEOF(JSAMPLE)));
-  } else {
-    upsample->pub.upsample = merged_1v_upsample;
-    upsample->upmethod = h2v1_merged_upsample;
-    /* No spare row needed */
-    upsample->spare_row = NULL;
-  }
-
-  build_ycc_rgb_table(cinfo);
-}
-
-#endif /* UPSAMPLE_MERGING_SUPPORTED */
diff --git a/src/3rdparty/libjpeg/jdphuff.c b/src/3rdparty/libjpeg/jdphuff.c
deleted file mode 100644
index 55a25d7b7..000000000
--- a/src/3rdparty/libjpeg/jdphuff.c
+++ /dev/null
@@ -1,668 +0,0 @@
-/*
- * jdphuff.c
- *
- * Copyright (C) 1995-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains Huffman entropy decoding routines for progressive JPEG.
- *
- * Much of the complexity here has to do with supporting input suspension.
- * If the data source module demands suspension, we want to be able to back
- * up to the start of the current MCU.  To do this, we copy state variables
- * into local working storage, and update them back to the permanent
- * storage only upon successful completion of an MCU.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jdhuff.h"		/* Declarations shared with jdhuff.c */
-
-
-#ifdef D_PROGRESSIVE_SUPPORTED
-
-/*
- * Expanded entropy decoder object for progressive Huffman decoding.
- *
- * The savable_state subrecord contains fields that change within an MCU,
- * but must not be updated permanently until we complete the MCU.
- */
-
-typedef struct {
-  unsigned int EOBRUN;			/* remaining EOBs in EOBRUN */
-  int last_dc_val[MAX_COMPS_IN_SCAN];	/* last DC coef for each component */
-} savable_state;
-
-/* This macro is to work around compilers with missing or broken
- * structure assignment.  You'll need to fix this code if you have
- * such a compiler and you change MAX_COMPS_IN_SCAN.
- */
-
-#ifndef NO_STRUCT_ASSIGN
-#define ASSIGN_STATE(dest,src)  ((dest) = (src))
-#else
-#if MAX_COMPS_IN_SCAN == 4
-#define ASSIGN_STATE(dest,src)  \
-	((dest).EOBRUN = (src).EOBRUN, \
-	 (dest).last_dc_val[0] = (src).last_dc_val[0], \
-	 (dest).last_dc_val[1] = (src).last_dc_val[1], \
-	 (dest).last_dc_val[2] = (src).last_dc_val[2], \
-	 (dest).last_dc_val[3] = (src).last_dc_val[3])
-#endif
-#endif
-
-
-typedef struct {
-  struct jpeg_entropy_decoder pub; /* public fields */
-
-  /* These fields are loaded into local variables at start of each MCU.
-   * In case of suspension, we exit WITHOUT updating them.
-   */
-  bitread_perm_state bitstate;	/* Bit buffer at start of MCU */
-  savable_state saved;		/* Other state at start of MCU */
-
-  /* These fields are NOT loaded into local working state. */
-  unsigned int restarts_to_go;	/* MCUs left in this restart interval */
-
-  /* Pointers to derived tables (these workspaces have image lifespan) */
-  d_derived_tbl * derived_tbls[NUM_HUFF_TBLS];
-
-  d_derived_tbl * ac_derived_tbl; /* active table during an AC scan */
-} phuff_entropy_decoder;
-
-typedef phuff_entropy_decoder * phuff_entropy_ptr;
-
-/* Forward declarations */
-METHODDEF(boolean) decode_mcu_DC_first JPP((j_decompress_ptr cinfo,
-					    JBLOCKROW *MCU_data));
-METHODDEF(boolean) decode_mcu_AC_first JPP((j_decompress_ptr cinfo,
-					    JBLOCKROW *MCU_data));
-METHODDEF(boolean) decode_mcu_DC_refine JPP((j_decompress_ptr cinfo,
-					     JBLOCKROW *MCU_data));
-METHODDEF(boolean) decode_mcu_AC_refine JPP((j_decompress_ptr cinfo,
-					     JBLOCKROW *MCU_data));
-
-
-/*
- * Initialize for a Huffman-compressed scan.
- */
-
-METHODDEF(void)
-start_pass_phuff_decoder (j_decompress_ptr cinfo)
-{
-  phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
-  boolean is_DC_band, bad;
-  int ci, coefi, tbl;
-  int *coef_bit_ptr;
-  jpeg_component_info * compptr;
-
-  is_DC_band = (cinfo->Ss == 0);
-
-  /* Validate scan parameters */
-  bad = FALSE;
-  if (is_DC_band) {
-    if (cinfo->Se != 0)
-      bad = TRUE;
-  } else {
-    /* need not check Ss/Se < 0 since they came from unsigned bytes */
-    if (cinfo->Ss > cinfo->Se || cinfo->Se >= DCTSIZE2)
-      bad = TRUE;
-    /* AC scans may have only one component */
-    if (cinfo->comps_in_scan != 1)
-      bad = TRUE;
-  }
-  if (cinfo->Ah != 0) {
-    /* Successive approximation refinement scan: must have Al = Ah-1. */
-    if (cinfo->Al != cinfo->Ah-1)
-      bad = TRUE;
-  }
-  if (cinfo->Al > 13)		/* need not check for < 0 */
-    bad = TRUE;
-  /* Arguably the maximum Al value should be less than 13 for 8-bit precision,
-   * but the spec doesn't say so, and we try to be liberal about what we
-   * accept.  Note: large Al values could result in out-of-range DC
-   * coefficients during early scans, leading to bizarre displays due to
-   * overflows in the IDCT math.  But we won't crash.
-   */
-  if (bad)
-    ERREXIT4(cinfo, JERR_BAD_PROGRESSION,
-	     cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al);
-  /* Update progression status, and verify that scan order is legal.
-   * Note that inter-scan inconsistencies are treated as warnings
-   * not fatal errors ... not clear if this is right way to behave.
-   */
-  for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-    int cindex = cinfo->cur_comp_info[ci]->component_index;
-    coef_bit_ptr = & cinfo->coef_bits[cindex][0];
-    if (!is_DC_band && coef_bit_ptr[0] < 0) /* AC without prior DC scan */
-      WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, 0);
-    for (coefi = cinfo->Ss; coefi <= cinfo->Se; coefi++) {
-      int expected = (coef_bit_ptr[coefi] < 0) ? 0 : coef_bit_ptr[coefi];
-      if (cinfo->Ah != expected)
-	WARNMS2(cinfo, JWRN_BOGUS_PROGRESSION, cindex, coefi);
-      coef_bit_ptr[coefi] = cinfo->Al;
-    }
-  }
-
-  /* Select MCU decoding routine */
-  if (cinfo->Ah == 0) {
-    if (is_DC_band)
-      entropy->pub.decode_mcu = decode_mcu_DC_first;
-    else
-      entropy->pub.decode_mcu = decode_mcu_AC_first;
-  } else {
-    if (is_DC_band)
-      entropy->pub.decode_mcu = decode_mcu_DC_refine;
-    else
-      entropy->pub.decode_mcu = decode_mcu_AC_refine;
-  }
-
-  for (ci = 0; ci < cinfo->comps_in_scan; ci++) {
-    compptr = cinfo->cur_comp_info[ci];
-    /* Make sure requested tables are present, and compute derived tables.
-     * We may build same derived table more than once, but it's not expensive.
-     */
-    if (is_DC_band) {
-      if (cinfo->Ah == 0) {	/* DC refinement needs no table */
-	tbl = compptr->dc_tbl_no;
-	jpeg_make_d_derived_tbl(cinfo, TRUE, tbl,
-				& entropy->derived_tbls[tbl]);
-      }
-    } else {
-      tbl = compptr->ac_tbl_no;
-      jpeg_make_d_derived_tbl(cinfo, FALSE, tbl,
-			      & entropy->derived_tbls[tbl]);
-      /* remember the single active table */
-      entropy->ac_derived_tbl = entropy->derived_tbls[tbl];
-    }
-    /* Initialize DC predictions to 0 */
-    entropy->saved.last_dc_val[ci] = 0;
-  }
-
-  /* Initialize bitread state variables */
-  entropy->bitstate.bits_left = 0;
-  entropy->bitstate.get_buffer = 0; /* unnecessary, but keeps Purify tquiet */
-  entropy->pub.insufficient_data = FALSE;
-
-  /* Initialize private state variables */
-  entropy->saved.EOBRUN = 0;
-
-  /* Initialize restart counter */
-  entropy->restarts_to_go = cinfo->restart_interval;
-}
-
-
-/*
- * Figure F.12: extend sign bit.
- * On some machines, a shift and add will be faster than a table lookup.
- */
-
-#ifdef AVOID_TABLES
-
-#define HUFF_EXTEND(x,s)  ((x) < (1<<((s)-1)) ? (x) + (((-1)<<(s)) + 1) : (x))
-
-#else
-
-#define HUFF_EXTEND(x,s)  ((x) < extend_test[s] ? (x) + extend_offset[s] : (x))
-
-static const int extend_test[16] =   /* entry n is 2**(n-1) */
-  { 0, 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080,
-    0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000 };
-
-static const int extend_offset[16] = /* entry n is (-1 << n) + 1 */
-  { 0, ((-1)<<1) + 1, ((-1)<<2) + 1, ((-1)<<3) + 1, ((-1)<<4) + 1,
-    ((-1)<<5) + 1, ((-1)<<6) + 1, ((-1)<<7) + 1, ((-1)<<8) + 1,
-    ((-1)<<9) + 1, ((-1)<<10) + 1, ((-1)<<11) + 1, ((-1)<<12) + 1,
-    ((-1)<<13) + 1, ((-1)<<14) + 1, ((-1)<<15) + 1 };
-
-#endif /* AVOID_TABLES */
-
-
-/*
- * Check for a restart marker & resynchronize decoder.
- * Returns FALSE if must suspend.
- */
-
-LOCAL(boolean)
-process_restart (j_decompress_ptr cinfo)
-{
-  phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
-  int ci;
-
-  /* Throw away any unused bits remaining in bit buffer; */
-  /* include any full bytes in next_marker's count of discarded bytes */
-  cinfo->marker->discarded_bytes += entropy->bitstate.bits_left / 8;
-  entropy->bitstate.bits_left = 0;
-
-  /* Advance past the RSTn marker */
-  if (! (*cinfo->marker->read_restart_marker) (cinfo))
-    return FALSE;
-
-  /* Re-initialize DC predictions to 0 */
-  for (ci = 0; ci < cinfo->comps_in_scan; ci++)
-    entropy->saved.last_dc_val[ci] = 0;
-  /* Re-init EOB run count, too */
-  entropy->saved.EOBRUN = 0;
-
-  /* Reset restart counter */
-  entropy->restarts_to_go = cinfo->restart_interval;
-
-  /* Reset out-of-data flag, unless read_restart_marker left us smack up
-   * against a marker.  In that case we will end up treating the next data
-   * segment as empty, and we can avoid producing bogus output pixels by
-   * leaving the flag set.
-   */
-  if (cinfo->unread_marker == 0)
-    entropy->pub.insufficient_data = FALSE;
-
-  return TRUE;
-}
-
-
-/*
- * Huffman MCU decoding.
- * Each of these routines decodes and returns one MCU's worth of
- * Huffman-compressed coefficients. 
- * The coefficients are reordered from zigzag order into natural array order,
- * but are not dequantized.
- *
- * The i'th block of the MCU is stored into the block pointed to by
- * MCU_data[i].  WE ASSUME THIS AREA IS INITIALLY ZEROED BY THE CALLER.
- *
- * We return FALSE if data source requested suspension.  In that case no
- * changes have been made to permanent state.  (Exception: some output
- * coefficients may already have been assigned.  This is harmless for
- * spectral selection, since we'll just re-assign them on the next call.
- * Successive approximation AC refinement has to be more careful, however.)
- */
-
-/*
- * MCU decoding for DC initial scan (either spectral selection,
- * or first pass of successive approximation).
- */
-
-METHODDEF(boolean)
-decode_mcu_DC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
-{   
-  phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
-  int Al = cinfo->Al;
-  register int s, r;
-  int blkn, ci;
-  JBLOCKROW block;
-  BITREAD_STATE_VARS;
-  savable_state state;
-  d_derived_tbl * tbl;
-  jpeg_component_info * compptr;
-
-  /* Process restart marker if needed; may have to suspend */
-  if (cinfo->restart_interval) {
-    if (entropy->restarts_to_go == 0)
-      if (! process_restart(cinfo))
-	return FALSE;
-  }
-
-  /* If we've run out of data, just leave the MCU set to zeroes.
-   * This way, we return uniform gray for the remainder of the segment.
-   */
-  if (! entropy->pub.insufficient_data) {
-
-    /* Load up working state */
-    BITREAD_LOAD_STATE(cinfo,entropy->bitstate);
-    ASSIGN_STATE(state, entropy->saved);
-
-    /* Outer loop handles each block in the MCU */
-
-    for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
-      block = MCU_data[blkn];
-      ci = cinfo->MCU_membership[blkn];
-      compptr = cinfo->cur_comp_info[ci];
-      tbl = entropy->derived_tbls[compptr->dc_tbl_no];
-
-      /* Decode a single block's worth of coefficients */
-
-      /* Section F.2.2.1: decode the DC coefficient difference */
-      HUFF_DECODE(s, br_state, tbl, return FALSE, label1);
-      if (s) {
-	CHECK_BIT_BUFFER(br_state, s, return FALSE);
-	r = GET_BITS(s);
-	s = HUFF_EXTEND(r, s);
-      }
-
-      /* Convert DC difference to actual value, update last_dc_val */
-      s += state.last_dc_val[ci];
-      state.last_dc_val[ci] = s;
-      /* Scale and output the coefficient (assumes jpeg_natural_order[0]=0) */
-      (*block)[0] = (JCOEF) (s << Al);
-    }
-
-    /* Completed MCU, so update state */
-    BITREAD_SAVE_STATE(cinfo,entropy->bitstate);
-    ASSIGN_STATE(entropy->saved, state);
-  }
-
-  /* Account for restart interval (no-op if not using restarts) */
-  entropy->restarts_to_go--;
-
-  return TRUE;
-}
-
-
-/*
- * MCU decoding for AC initial scan (either spectral selection,
- * or first pass of successive approximation).
- */
-
-METHODDEF(boolean)
-decode_mcu_AC_first (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
-{   
-  phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
-  int Se = cinfo->Se;
-  int Al = cinfo->Al;
-  register int s, k, r;
-  unsigned int EOBRUN;
-  JBLOCKROW block;
-  BITREAD_STATE_VARS;
-  d_derived_tbl * tbl;
-
-  /* Process restart marker if needed; may have to suspend */
-  if (cinfo->restart_interval) {
-    if (entropy->restarts_to_go == 0)
-      if (! process_restart(cinfo))
-	return FALSE;
-  }
-
-  /* If we've run out of data, just leave the MCU set to zeroes.
-   * This way, we return uniform gray for the remainder of the segment.
-   */
-  if (! entropy->pub.insufficient_data) {
-
-    /* Load up working state.
-     * We can avoid loading/saving bitread state if in an EOB run.
-     */
-    EOBRUN = entropy->saved.EOBRUN;	/* only part of saved state we need */
-
-    /* There is always only one block per MCU */
-
-    if (EOBRUN > 0)		/* if it's a band of zeroes... */
-      EOBRUN--;			/* ...process it now (we do nothing) */
-    else {
-      BITREAD_LOAD_STATE(cinfo,entropy->bitstate);
-      block = MCU_data[0];
-      tbl = entropy->ac_derived_tbl;
-
-      for (k = cinfo->Ss; k <= Se; k++) {
-	HUFF_DECODE(s, br_state, tbl, return FALSE, label2);
-	r = s >> 4;
-	s &= 15;
-	if (s) {
-	  k += r;
-	  CHECK_BIT_BUFFER(br_state, s, return FALSE);
-	  r = GET_BITS(s);
-	  s = HUFF_EXTEND(r, s);
-	  /* Scale and output coefficient in natural (dezigzagged) order */
-	  (*block)[jpeg_natural_order[k]] = (JCOEF) (s << Al);
-	} else {
-	  if (r == 15) {	/* ZRL */
-	    k += 15;		/* skip 15 zeroes in band */
-	  } else {		/* EOBr, run length is 2^r + appended bits */
-	    EOBRUN = 1 << r;
-	    if (r) {		/* EOBr, r > 0 */
-	      CHECK_BIT_BUFFER(br_state, r, return FALSE);
-	      r = GET_BITS(r);
-	      EOBRUN += r;
-	    }
-	    EOBRUN--;		/* this band is processed at this moment */
-	    break;		/* force end-of-band */
-	  }
-	}
-      }
-
-      BITREAD_SAVE_STATE(cinfo,entropy->bitstate);
-    }
-
-    /* Completed MCU, so update state */
-    entropy->saved.EOBRUN = EOBRUN;	/* only part of saved state we need */
-  }
-
-  /* Account for restart interval (no-op if not using restarts) */
-  entropy->restarts_to_go--;
-
-  return TRUE;
-}
-
-
-/*
- * MCU decoding for DC successive approximation refinement scan.
- * Note: we assume such scans can be multi-component, although the spec
- * is not very clear on the point.
- */
-
-METHODDEF(boolean)
-decode_mcu_DC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
-{   
-  phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
-  int p1 = 1 << cinfo->Al;	/* 1 in the bit position being coded */
-  int blkn;
-  JBLOCKROW block;
-  BITREAD_STATE_VARS;
-
-  /* Process restart marker if needed; may have to suspend */
-  if (cinfo->restart_interval) {
-    if (entropy->restarts_to_go == 0)
-      if (! process_restart(cinfo))
-	return FALSE;
-  }
-
-  /* Not worth the cycles to check insufficient_data here,
-   * since we will not change the data anyway if we read zeroes.
-   */
-
-  /* Load up working state */
-  BITREAD_LOAD_STATE(cinfo,entropy->bitstate);
-
-  /* Outer loop handles each block in the MCU */
-
-  for (blkn = 0; blkn < cinfo->blocks_in_MCU; blkn++) {
-    block = MCU_data[blkn];
-
-    /* Encoded data is simply the next bit of the two's-complement DC value */
-    CHECK_BIT_BUFFER(br_state, 1, return FALSE);
-    if (GET_BITS(1))
-      (*block)[0] |= p1;
-    /* Note: since we use |=, repeating the assignment later is safe */
-  }
-
-  /* Completed MCU, so update state */
-  BITREAD_SAVE_STATE(cinfo,entropy->bitstate);
-
-  /* Account for restart interval (no-op if not using restarts) */
-  entropy->restarts_to_go--;
-
-  return TRUE;
-}
-
-
-/*
- * MCU decoding for AC successive approximation refinement scan.
- */
-
-METHODDEF(boolean)
-decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
-{   
-  phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
-  int Se = cinfo->Se;
-  int p1 = 1 << cinfo->Al;	/* 1 in the bit position being coded */
-  int m1 = (-1) << cinfo->Al;	/* -1 in the bit position being coded */
-  register int s, k, r;
-  unsigned int EOBRUN;
-  JBLOCKROW block;
-  JCOEFPTR thiscoef;
-  BITREAD_STATE_VARS;
-  d_derived_tbl * tbl;
-  int num_newnz;
-  int newnz_pos[DCTSIZE2];
-
-  /* Process restart marker if needed; may have to suspend */
-  if (cinfo->restart_interval) {
-    if (entropy->restarts_to_go == 0)
-      if (! process_restart(cinfo))
-	return FALSE;
-  }
-
-  /* If we've run out of data, don't modify the MCU.
-   */
-  if (! entropy->pub.insufficient_data) {
-
-    /* Load up working state */
-    BITREAD_LOAD_STATE(cinfo,entropy->bitstate);
-    EOBRUN = entropy->saved.EOBRUN; /* only part of saved state we need */
-
-    /* There is always only one block per MCU */
-    block = MCU_data[0];
-    tbl = entropy->ac_derived_tbl;
-
-    /* If we are forced to suspend, we must undo the assignments to any newly
-     * nonzero coefficients in the block, because otherwise we'd get confused
-     * next time about which coefficients were already nonzero.
-     * But we need not undo addition of bits to already-nonzero coefficients;
-     * instead, we can test the current bit to see if we already did it.
-     */
-    num_newnz = 0;
-
-    /* initialize coefficient loop counter to start of band */
-    k = cinfo->Ss;
-
-    if (EOBRUN == 0) {
-      for (; k <= Se; k++) {
-	HUFF_DECODE(s, br_state, tbl, goto undoit, label3);
-	r = s >> 4;
-	s &= 15;
-	if (s) {
-	  if (s != 1)		/* size of new coef should always be 1 */
-	    WARNMS(cinfo, JWRN_HUFF_BAD_CODE);
-	  CHECK_BIT_BUFFER(br_state, 1, goto undoit);
-	  if (GET_BITS(1))
-	    s = p1;		/* newly nonzero coef is positive */
-	  else
-	    s = m1;		/* newly nonzero coef is negative */
-	} else {
-	  if (r != 15) {
-	    EOBRUN = 1 << r;	/* EOBr, run length is 2^r + appended bits */
-	    if (r) {
-	      CHECK_BIT_BUFFER(br_state, r, goto undoit);
-	      r = GET_BITS(r);
-	      EOBRUN += r;
-	    }
-	    break;		/* rest of block is handled by EOB logic */
-	  }
-	  /* note s = 0 for processing ZRL */
-	}
-	/* Advance over already-nonzero coefs and r still-zero coefs,
-	 * appending correction bits to the nonzeroes.  A correction bit is 1
-	 * if the absolute value of the coefficient must be increased.
-	 */
-	do {
-	  thiscoef = *block + jpeg_natural_order[k];
-	  if (*thiscoef != 0) {
-	    CHECK_BIT_BUFFER(br_state, 1, goto undoit);
-	    if (GET_BITS(1)) {
-	      if ((*thiscoef & p1) == 0) { /* do nothing if already set it */
-		if (*thiscoef >= 0)
-		  *thiscoef += p1;
-		else
-		  *thiscoef += m1;
-	      }
-	    }
-	  } else {
-	    if (--r < 0)
-	      break;		/* reached target zero coefficient */
-	  }
-	  k++;
-	} while (k <= Se);
-	if (s) {
-	  int pos = jpeg_natural_order[k];
-	  /* Output newly nonzero coefficient */
-	  (*block)[pos] = (JCOEF) s;
-	  /* Remember its position in case we have to suspend */
-	  newnz_pos[num_newnz++] = pos;
-	}
-      }
-    }
-
-    if (EOBRUN > 0) {
-      /* Scan any remaining coefficient positions after the end-of-band
-       * (the last newly nonzero coefficient, if any).  Append a correction
-       * bit to each already-nonzero coefficient.  A correction bit is 1
-       * if the absolute value of the coefficient must be increased.
-       */
-      for (; k <= Se; k++) {
-	thiscoef = *block + jpeg_natural_order[k];
-	if (*thiscoef != 0) {
-	  CHECK_BIT_BUFFER(br_state, 1, goto undoit);
-	  if (GET_BITS(1)) {
-	    if ((*thiscoef & p1) == 0) { /* do nothing if already changed it */
-	      if (*thiscoef >= 0)
-		*thiscoef += p1;
-	      else
-		*thiscoef += m1;
-	    }
-	  }
-	}
-      }
-      /* Count one block completed in EOB run */
-      EOBRUN--;
-    }
-
-    /* Completed MCU, so update state */
-    BITREAD_SAVE_STATE(cinfo,entropy->bitstate);
-    entropy->saved.EOBRUN = EOBRUN; /* only part of saved state we need */
-  }
-
-  /* Account for restart interval (no-op if not using restarts) */
-  entropy->restarts_to_go--;
-
-  return TRUE;
-
-undoit:
-  /* Re-zero any output coefficients that we made newly nonzero */
-  while (num_newnz > 0)
-    (*block)[newnz_pos[--num_newnz]] = 0;
-
-  return FALSE;
-}
-
-
-/*
- * Module initialization routine for progressive Huffman entropy decoding.
- */
-
-GLOBAL(void)
-jinit_phuff_decoder (j_decompress_ptr cinfo)
-{
-  phuff_entropy_ptr entropy;
-  int *coef_bit_ptr;
-  int ci, i;
-
-  entropy = (phuff_entropy_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(phuff_entropy_decoder));
-  cinfo->entropy = (struct jpeg_entropy_decoder *) entropy;
-  entropy->pub.start_pass = start_pass_phuff_decoder;
-
-  /* Mark derived tables unallocated */
-  for (i = 0; i < NUM_HUFF_TBLS; i++) {
-    entropy->derived_tbls[i] = NULL;
-  }
-
-  /* Create progression status table */
-  cinfo->coef_bits = (int (*)[DCTSIZE2])
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				cinfo->num_components*DCTSIZE2*SIZEOF(int));
-  coef_bit_ptr = & cinfo->coef_bits[0][0];
-  for (ci = 0; ci < cinfo->num_components; ci++) 
-    for (i = 0; i < DCTSIZE2; i++)
-      *coef_bit_ptr++ = -1;
-}
-
-#endif /* D_PROGRESSIVE_SUPPORTED */
diff --git a/src/3rdparty/libjpeg/jdpostct.c b/src/3rdparty/libjpeg/jdpostct.c
deleted file mode 100644
index e6838c734..000000000
--- a/src/3rdparty/libjpeg/jdpostct.c
+++ /dev/null
@@ -1,290 +0,0 @@
-/*
- * jdpostct.c
- *
- * Copyright (C) 1994-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains the decompression postprocessing controller.
- * This controller manages the upsampling, color conversion, and color
- * quantization/reduction steps; specifically, it controls the buffering
- * between upsample/color conversion and color quantization/reduction.
- *
- * If no color quantization/reduction is required, then this module has no
- * work to do, and it just hands off to the upsample/color conversion code.
- * An integrated upsample/convert/quantize process would replace this module
- * entirely.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/* Private buffer controller object */
-
-typedef struct {
-  struct jpeg_d_post_controller pub; /* public fields */
-
-  /* Color quantization source buffer: this holds output data from
-   * the upsample/color conversion step to be passed to the quantizer.
-   * For two-pass color quantization, we need a full-image buffer;
-   * for one-pass operation, a strip buffer is sufficient.
-   */
-  jvirt_sarray_ptr whole_image;	/* virtual array, or NULL if one-pass */
-  JSAMPARRAY buffer;		/* strip buffer, or current strip of virtual */
-  JDIMENSION strip_height;	/* buffer size in rows */
-  /* for two-pass mode only: */
-  JDIMENSION starting_row;	/* row # of first row in current strip */
-  JDIMENSION next_row;		/* index of next row to fill/empty in strip */
-} my_post_controller;
-
-typedef my_post_controller * my_post_ptr;
-
-
-/* Forward declarations */
-METHODDEF(void) post_process_1pass
-	JPP((j_decompress_ptr cinfo,
-	     JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr,
-	     JDIMENSION in_row_groups_avail,
-	     JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-	     JDIMENSION out_rows_avail));
-#ifdef TQUANT_2PASS_SUPPORTED
-METHODDEF(void) post_process_prepass
-	JPP((j_decompress_ptr cinfo,
-	     JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr,
-	     JDIMENSION in_row_groups_avail,
-	     JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-	     JDIMENSION out_rows_avail));
-METHODDEF(void) post_process_2pass
-	JPP((j_decompress_ptr cinfo,
-	     JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr,
-	     JDIMENSION in_row_groups_avail,
-	     JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-	     JDIMENSION out_rows_avail));
-#endif
-
-
-/*
- * Initialize for a processing pass.
- */
-
-METHODDEF(void)
-start_pass_dpost (j_decompress_ptr cinfo, J_BUF_MODE pass_mode)
-{
-  my_post_ptr post = (my_post_ptr) cinfo->post;
-
-  switch (pass_mode) {
-  case JBUF_PASS_THRU:
-    if (cinfo->quantize_colors) {
-      /* Single-pass processing with color quantization. */
-      post->pub.post_process_data = post_process_1pass;
-      /* We could be doing buffered-image output before starting a 2-pass
-       * color quantization; in that case, jinit_d_post_controller did not
-       * allocate a strip buffer.  Use the virtual-array buffer as workspace.
-       */
-      if (post->buffer == NULL) {
-	post->buffer = (*cinfo->mem->access_virt_sarray)
-	  ((j_common_ptr) cinfo, post->whole_image,
-	   (JDIMENSION) 0, post->strip_height, TRUE);
-      }
-    } else {
-      /* For single-pass processing without color quantization,
-       * I have no work to do; just call the upsampler directly.
-       */
-      post->pub.post_process_data = cinfo->upsample->upsample;
-    }
-    break;
-#ifdef TQUANT_2PASS_SUPPORTED
-  case JBUF_SAVE_AND_PASS:
-    /* First pass of 2-pass quantization */
-    if (post->whole_image == NULL)
-      ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-    post->pub.post_process_data = post_process_prepass;
-    break;
-  case JBUF_CRANK_DEST:
-    /* Second pass of 2-pass quantization */
-    if (post->whole_image == NULL)
-      ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-    post->pub.post_process_data = post_process_2pass;
-    break;
-#endif /* TQUANT_2PASS_SUPPORTED */
-  default:
-    ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-    break;
-  }
-  post->starting_row = post->next_row = 0;
-}
-
-
-/*
- * Process some data in the one-pass (strip buffer) case.
- * This is used for color precision reduction as well as one-pass quantization.
- */
-
-METHODDEF(void)
-post_process_1pass (j_decompress_ptr cinfo,
-		    JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr,
-		    JDIMENSION in_row_groups_avail,
-		    JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-		    JDIMENSION out_rows_avail)
-{
-  my_post_ptr post = (my_post_ptr) cinfo->post;
-  JDIMENSION num_rows, max_rows;
-
-  /* Fill the buffer, but not more than what we can dump out in one go. */
-  /* Note we rely on the upsampler to detect bottom of image. */
-  max_rows = out_rows_avail - *out_row_ctr;
-  if (max_rows > post->strip_height)
-    max_rows = post->strip_height;
-  num_rows = 0;
-  (*cinfo->upsample->upsample) (cinfo,
-		input_buf, in_row_group_ctr, in_row_groups_avail,
-		post->buffer, &num_rows, max_rows);
-  /* Quantize and emit data. */
-  (*cinfo->cquantize->color_quantize) (cinfo,
-		post->buffer, output_buf + *out_row_ctr, (int) num_rows);
-  *out_row_ctr += num_rows;
-}
-
-
-#ifdef TQUANT_2PASS_SUPPORTED
-
-/*
- * Process some data in the first pass of 2-pass quantization.
- */
-
-METHODDEF(void)
-post_process_prepass (j_decompress_ptr cinfo,
-		      JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr,
-		      JDIMENSION in_row_groups_avail,
-		      JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-		      JDIMENSION out_rows_avail)
-{
-  my_post_ptr post = (my_post_ptr) cinfo->post;
-  JDIMENSION old_next_row, num_rows;
-
-  /* Reposition virtual buffer if at start of strip. */
-  if (post->next_row == 0) {
-    post->buffer = (*cinfo->mem->access_virt_sarray)
-	((j_common_ptr) cinfo, post->whole_image,
-	 post->starting_row, post->strip_height, TRUE);
-  }
-
-  /* Upsample some data (up to a strip height's worth). */
-  old_next_row = post->next_row;
-  (*cinfo->upsample->upsample) (cinfo,
-		input_buf, in_row_group_ctr, in_row_groups_avail,
-		post->buffer, &post->next_row, post->strip_height);
-
-  /* Allow quantizer to scan new data.  No data is emitted, */
-  /* but we advance out_row_ctr so outer loop can tell when we're done. */
-  if (post->next_row > old_next_row) {
-    num_rows = post->next_row - old_next_row;
-    (*cinfo->cquantize->color_quantize) (cinfo, post->buffer + old_next_row,
-					 (JSAMPARRAY) NULL, (int) num_rows);
-    *out_row_ctr += num_rows;
-  }
-
-  /* Advance if we filled the strip. */
-  if (post->next_row >= post->strip_height) {
-    post->starting_row += post->strip_height;
-    post->next_row = 0;
-  }
-}
-
-
-/*
- * Process some data in the second pass of 2-pass quantization.
- */
-
-METHODDEF(void)
-post_process_2pass (j_decompress_ptr cinfo,
-		    JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr,
-		    JDIMENSION in_row_groups_avail,
-		    JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-		    JDIMENSION out_rows_avail)
-{
-  my_post_ptr post = (my_post_ptr) cinfo->post;
-  JDIMENSION num_rows, max_rows;
-
-  /* Reposition virtual buffer if at start of strip. */
-  if (post->next_row == 0) {
-    post->buffer = (*cinfo->mem->access_virt_sarray)
-	((j_common_ptr) cinfo, post->whole_image,
-	 post->starting_row, post->strip_height, FALSE);
-  }
-
-  /* Determine number of rows to emit. */
-  num_rows = post->strip_height - post->next_row; /* available in strip */
-  max_rows = out_rows_avail - *out_row_ctr; /* available in output area */
-  if (num_rows > max_rows)
-    num_rows = max_rows;
-  /* We have to check bottom of image here, can't depend on upsampler. */
-  max_rows = cinfo->output_height - post->starting_row;
-  if (num_rows > max_rows)
-    num_rows = max_rows;
-
-  /* Quantize and emit data. */
-  (*cinfo->cquantize->color_quantize) (cinfo,
-		post->buffer + post->next_row, output_buf + *out_row_ctr,
-		(int) num_rows);
-  *out_row_ctr += num_rows;
-
-  /* Advance if we filled the strip. */
-  post->next_row += num_rows;
-  if (post->next_row >= post->strip_height) {
-    post->starting_row += post->strip_height;
-    post->next_row = 0;
-  }
-}
-
-#endif /* TQUANT_2PASS_SUPPORTED */
-
-
-/*
- * Initialize postprocessing controller.
- */
-
-GLOBAL(void)
-jinit_d_post_controller (j_decompress_ptr cinfo, boolean need_full_buffer)
-{
-  my_post_ptr post;
-
-  post = (my_post_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_post_controller));
-  cinfo->post = (struct jpeg_d_post_controller *) post;
-  post->pub.start_pass = start_pass_dpost;
-  post->whole_image = NULL;	/* flag for no virtual arrays */
-  post->buffer = NULL;		/* flag for no strip buffer */
-
-  /* Create the quantization buffer, if needed */
-  if (cinfo->quantize_colors) {
-    /* The buffer strip height is max_v_samp_factor, which is typically
-     * an efficient number of rows for upsampling to return.
-     * (In the presence of output rescaling, we might want to be smarter?)
-     */
-    post->strip_height = (JDIMENSION) cinfo->max_v_samp_factor;
-    if (need_full_buffer) {
-      /* Two-pass color quantization: need full-image storage. */
-      /* We round up the number of rows to a multiple of the strip height. */
-#ifdef TQUANT_2PASS_SUPPORTED
-      post->whole_image = (*cinfo->mem->request_virt_sarray)
-	((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE,
-	 cinfo->output_width * cinfo->out_color_components,
-	 (JDIMENSION) jround_up((long) cinfo->output_height,
-				(long) post->strip_height),
-	 post->strip_height);
-#else
-      ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
-#endif /* TQUANT_2PASS_SUPPORTED */
-    } else {
-      /* One-pass color quantization: just make a strip buffer. */
-      post->buffer = (*cinfo->mem->alloc_sarray)
-	((j_common_ptr) cinfo, JPOOL_IMAGE,
-	 cinfo->output_width * cinfo->out_color_components,
-	 post->strip_height);
-    }
-  }
-}
diff --git a/src/3rdparty/libjpeg/jdsample.c b/src/3rdparty/libjpeg/jdsample.c
deleted file mode 100644
index 80ffefb2a..000000000
--- a/src/3rdparty/libjpeg/jdsample.c
+++ /dev/null
@@ -1,478 +0,0 @@
-/*
- * jdsample.c
- *
- * Copyright (C) 1991-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains upsampling routines.
- *
- * Upsampling input data is counted in "row groups".  A row group
- * is defined to be (v_samp_factor * DCT_scaled_size / min_DCT_scaled_size)
- * sample rows of each component.  Upsampling will normally produce
- * max_v_samp_factor pixel rows from each row group (but this could vary
- * if the upsampler is applying a scale factor of its own).
- *
- * An excellent reference for image resampling is
- *   Digital Image Warping, George Wolberg, 1990.
- *   Pub. by IEEE Computer Society Press, Los Alamitos, CA. ISBN 0-8186-8944-7.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/* Pointer to routine to upsample a single component */
-typedef JMETHOD(void, upsample1_ptr,
-		(j_decompress_ptr cinfo, jpeg_component_info * compptr,
-		 JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr));
-
-/* Private subobject */
-
-typedef struct {
-  struct jpeg_upsampler pub;	/* public fields */
-
-  /* Color conversion buffer.  When using separate upsampling and color
-   * conversion steps, this buffer holds one upsampled row group until it
-   * has been color converted and output.
-   * Note: we do not allocate any storage for component(s) which are full-size,
-   * ie do not need rescaling.  The corresponding entry of color_buf[] is
-   * simply set to point to the input data array, thereby avoiding copying.
-   */
-  JSAMPARRAY color_buf[MAX_COMPONENTS];
-
-  /* Per-component upsampling method pointers */
-  upsample1_ptr methods[MAX_COMPONENTS];
-
-  int next_row_out;		/* counts rows emitted from color_buf */
-  JDIMENSION rows_to_go;	/* counts rows remaining in image */
-
-  /* Height of an input row group for each component. */
-  int rowgroup_height[MAX_COMPONENTS];
-
-  /* These arrays save pixel expansion factors so that int_expand need not
-   * recompute them each time.  They are unused for other upsampling methods.
-   */
-  UINT8 h_expand[MAX_COMPONENTS];
-  UINT8 v_expand[MAX_COMPONENTS];
-} my_upsampler;
-
-typedef my_upsampler * my_upsample_ptr;
-
-
-/*
- * Initialize for an upsampling pass.
- */
-
-METHODDEF(void)
-start_pass_upsample (j_decompress_ptr cinfo)
-{
-  my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample;
-
-  /* Mark the conversion buffer empty */
-  upsample->next_row_out = cinfo->max_v_samp_factor;
-  /* Initialize total-height counter for detecting bottom of image */
-  upsample->rows_to_go = cinfo->output_height;
-}
-
-
-/*
- * Control routine to do upsampling (and color conversion).
- *
- * In this version we upsample each component independently.
- * We upsample one row group into the conversion buffer, then apply
- * color conversion a row at a time.
- */
-
-METHODDEF(void)
-sep_upsample (j_decompress_ptr cinfo,
-	      JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr,
-	      JDIMENSION in_row_groups_avail,
-	      JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-	      JDIMENSION out_rows_avail)
-{
-  my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample;
-  int ci;
-  jpeg_component_info * compptr;
-  JDIMENSION num_rows;
-
-  /* Fill the conversion buffer, if it's empty */
-  if (upsample->next_row_out >= cinfo->max_v_samp_factor) {
-    for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-	 ci++, compptr++) {
-      /* Invoke per-component upsample method.  Notice we pass a POINTER
-       * to color_buf[ci], so that fullsize_upsample can change it.
-       */
-      (*upsample->methods[ci]) (cinfo, compptr,
-	input_buf[ci] + (*in_row_group_ctr * upsample->rowgroup_height[ci]),
-	upsample->color_buf + ci);
-    }
-    upsample->next_row_out = 0;
-  }
-
-  /* Color-convert and emit rows */
-
-  /* How many we have in the buffer: */
-  num_rows = (JDIMENSION) (cinfo->max_v_samp_factor - upsample->next_row_out);
-  /* Not more than the distance to the end of the image.  Need this test
-   * in case the image height is not a multiple of max_v_samp_factor:
-   */
-  if (num_rows > upsample->rows_to_go) 
-    num_rows = upsample->rows_to_go;
-  /* And not more than what the client can accept: */
-  out_rows_avail -= *out_row_ctr;
-  if (num_rows > out_rows_avail)
-    num_rows = out_rows_avail;
-
-  (*cinfo->cconvert->color_convert) (cinfo, upsample->color_buf,
-				     (JDIMENSION) upsample->next_row_out,
-				     output_buf + *out_row_ctr,
-				     (int) num_rows);
-
-  /* Adjust counts */
-  *out_row_ctr += num_rows;
-  upsample->rows_to_go -= num_rows;
-  upsample->next_row_out += num_rows;
-  /* When the buffer is emptied, declare this input row group consumed */
-  if (upsample->next_row_out >= cinfo->max_v_samp_factor)
-    (*in_row_group_ctr)++;
-}
-
-
-/*
- * These are the routines invoked by sep_upsample to upsample pixel values
- * of a single component.  One row group is processed per call.
- */
-
-
-/*
- * For full-size components, we just make color_buf[ci] point at the
- * input buffer, and thus avoid copying any data.  Note that this is
- * safe only because sep_upsample doesn't declare the input row group
- * "consumed" until we are done color converting and emitting it.
- */
-
-METHODDEF(void)
-fullsize_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr,
-		   JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr)
-{
-  *output_data_ptr = input_data;
-}
-
-
-/*
- * This is a no-op version used for "uninteresting" components.
- * These components will not be referenced by color conversion.
- */
-
-METHODDEF(void)
-noop_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr,
-	       JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr)
-{
-  *output_data_ptr = NULL;	/* safety check */
-}
-
-
-/*
- * This version handles any integral sampling ratios.
- * This is not used for typical JPEG files, so it need not be fast.
- * Nor, for that matter, is it particularly accurate: the algorithm is
- * simple replication of the input pixel onto the corresponding output
- * pixels.  The hi-falutin sampling literature refers to this as a
- * "box filter".  A box filter tends to introduce visible artifacts,
- * so if you are actually going to use 3:1 or 4:1 sampling ratios
- * you would be well advised to improve this code.
- */
-
-METHODDEF(void)
-int_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr,
-	      JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr)
-{
-  my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample;
-  JSAMPARRAY output_data = *output_data_ptr;
-  register JSAMPROW inptr, outptr;
-  register JSAMPLE invalue;
-  register int h;
-  JSAMPROW outend;
-  int h_expand, v_expand;
-  int inrow, outrow;
-
-  h_expand = upsample->h_expand[compptr->component_index];
-  v_expand = upsample->v_expand[compptr->component_index];
-
-  inrow = outrow = 0;
-  while (outrow < cinfo->max_v_samp_factor) {
-    /* Generate one output row with proper horizontal expansion */
-    inptr = input_data[inrow];
-    outptr = output_data[outrow];
-    outend = outptr + cinfo->output_width;
-    while (outptr < outend) {
-      invalue = *inptr++;	/* don't need GETJSAMPLE() here */
-      for (h = h_expand; h > 0; h--) {
-	*outptr++ = invalue;
-      }
-    }
-    /* Generate any additional output rows by duplicating the first one */
-    if (v_expand > 1) {
-      jcopy_sample_rows(output_data, outrow, output_data, outrow+1,
-			v_expand-1, cinfo->output_width);
-    }
-    inrow++;
-    outrow += v_expand;
-  }
-}
-
-
-/*
- * Fast processing for the common case of 2:1 horizontal and 1:1 vertical.
- * It's still a box filter.
- */
-
-METHODDEF(void)
-h2v1_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr,
-	       JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr)
-{
-  JSAMPARRAY output_data = *output_data_ptr;
-  register JSAMPROW inptr, outptr;
-  register JSAMPLE invalue;
-  JSAMPROW outend;
-  int inrow;
-
-  for (inrow = 0; inrow < cinfo->max_v_samp_factor; inrow++) {
-    inptr = input_data[inrow];
-    outptr = output_data[inrow];
-    outend = outptr + cinfo->output_width;
-    while (outptr < outend) {
-      invalue = *inptr++;	/* don't need GETJSAMPLE() here */
-      *outptr++ = invalue;
-      *outptr++ = invalue;
-    }
-  }
-}
-
-
-/*
- * Fast processing for the common case of 2:1 horizontal and 2:1 vertical.
- * It's still a box filter.
- */
-
-METHODDEF(void)
-h2v2_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr,
-	       JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr)
-{
-  JSAMPARRAY output_data = *output_data_ptr;
-  register JSAMPROW inptr, outptr;
-  register JSAMPLE invalue;
-  JSAMPROW outend;
-  int inrow, outrow;
-
-  inrow = outrow = 0;
-  while (outrow < cinfo->max_v_samp_factor) {
-    inptr = input_data[inrow];
-    outptr = output_data[outrow];
-    outend = outptr + cinfo->output_width;
-    while (outptr < outend) {
-      invalue = *inptr++;	/* don't need GETJSAMPLE() here */
-      *outptr++ = invalue;
-      *outptr++ = invalue;
-    }
-    jcopy_sample_rows(output_data, outrow, output_data, outrow+1,
-		      1, cinfo->output_width);
-    inrow++;
-    outrow += 2;
-  }
-}
-
-
-/*
- * Fancy processing for the common case of 2:1 horizontal and 1:1 vertical.
- *
- * The upsampling algorithm is linear interpolation between pixel centers,
- * also known as a "triangle filter".  This is a good compromise between
- * speed and visual quality.  The centers of the output pixels are 1/4 and 3/4
- * of the way between input pixel centers.
- *
- * A note about the "bias" calculations: when rounding fractional values to
- * integer, we do not want to always round 0.5 up to the next integer.
- * If we did that, we'd introduce a noticeable bias towards larger values.
- * Instead, this code is arranged so that 0.5 will be rounded up or down at
- * alternate pixel locations (a simple ordered dither pattern).
- */
-
-METHODDEF(void)
-h2v1_fancy_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr,
-		     JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr)
-{
-  JSAMPARRAY output_data = *output_data_ptr;
-  register JSAMPROW inptr, outptr;
-  register int invalue;
-  register JDIMENSION colctr;
-  int inrow;
-
-  for (inrow = 0; inrow < cinfo->max_v_samp_factor; inrow++) {
-    inptr = input_data[inrow];
-    outptr = output_data[inrow];
-    /* Special case for first column */
-    invalue = GETJSAMPLE(*inptr++);
-    *outptr++ = (JSAMPLE) invalue;
-    *outptr++ = (JSAMPLE) ((invalue * 3 + GETJSAMPLE(*inptr) + 2) >> 2);
-
-    for (colctr = compptr->downsampled_width - 2; colctr > 0; colctr--) {
-      /* General case: 3/4 * nearer pixel + 1/4 * further pixel */
-      invalue = GETJSAMPLE(*inptr++) * 3;
-      *outptr++ = (JSAMPLE) ((invalue + GETJSAMPLE(inptr[-2]) + 1) >> 2);
-      *outptr++ = (JSAMPLE) ((invalue + GETJSAMPLE(*inptr) + 2) >> 2);
-    }
-
-    /* Special case for last column */
-    invalue = GETJSAMPLE(*inptr);
-    *outptr++ = (JSAMPLE) ((invalue * 3 + GETJSAMPLE(inptr[-1]) + 1) >> 2);
-    *outptr++ = (JSAMPLE) invalue;
-  }
-}
-
-
-/*
- * Fancy processing for the common case of 2:1 horizontal and 2:1 vertical.
- * Again a triangle filter; see comments for h2v1 case, above.
- *
- * It is OK for us to reference the adjacent input rows because we demanded
- * context from the main buffer controller (see initialization code).
- */
-
-METHODDEF(void)
-h2v2_fancy_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr,
-		     JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr)
-{
-  JSAMPARRAY output_data = *output_data_ptr;
-  register JSAMPROW inptr0, inptr1, outptr;
-#if BITS_IN_JSAMPLE == 8
-  register int thiscolsum, lastcolsum, nextcolsum;
-#else
-  register INT32 thiscolsum, lastcolsum, nextcolsum;
-#endif
-  register JDIMENSION colctr;
-  int inrow, outrow, v;
-
-  inrow = outrow = 0;
-  while (outrow < cinfo->max_v_samp_factor) {
-    for (v = 0; v < 2; v++) {
-      /* inptr0 points to nearest input row, inptr1 points to next nearest */
-      inptr0 = input_data[inrow];
-      if (v == 0)		/* next nearest is row above */
-	inptr1 = input_data[inrow-1];
-      else			/* next nearest is row below */
-	inptr1 = input_data[inrow+1];
-      outptr = output_data[outrow++];
-
-      /* Special case for first column */
-      thiscolsum = GETJSAMPLE(*inptr0++) * 3 + GETJSAMPLE(*inptr1++);
-      nextcolsum = GETJSAMPLE(*inptr0++) * 3 + GETJSAMPLE(*inptr1++);
-      *outptr++ = (JSAMPLE) ((thiscolsum * 4 + 8) >> 4);
-      *outptr++ = (JSAMPLE) ((thiscolsum * 3 + nextcolsum + 7) >> 4);
-      lastcolsum = thiscolsum; thiscolsum = nextcolsum;
-
-      for (colctr = compptr->downsampled_width - 2; colctr > 0; colctr--) {
-	/* General case: 3/4 * nearer pixel + 1/4 * further pixel in each */
-	/* dimension, thus 9/16, 3/16, 3/16, 1/16 overall */
-	nextcolsum = GETJSAMPLE(*inptr0++) * 3 + GETJSAMPLE(*inptr1++);
-	*outptr++ = (JSAMPLE) ((thiscolsum * 3 + lastcolsum + 8) >> 4);
-	*outptr++ = (JSAMPLE) ((thiscolsum * 3 + nextcolsum + 7) >> 4);
-	lastcolsum = thiscolsum; thiscolsum = nextcolsum;
-      }
-
-      /* Special case for last column */
-      *outptr++ = (JSAMPLE) ((thiscolsum * 3 + lastcolsum + 8) >> 4);
-      *outptr++ = (JSAMPLE) ((thiscolsum * 4 + 7) >> 4);
-    }
-    inrow++;
-  }
-}
-
-
-/*
- * Module initialization routine for upsampling.
- */
-
-GLOBAL(void)
-jinit_upsampler (j_decompress_ptr cinfo)
-{
-  my_upsample_ptr upsample;
-  int ci;
-  jpeg_component_info * compptr;
-  boolean need_buffer, do_fancy;
-  int h_in_group, v_in_group, h_out_group, v_out_group;
-
-  upsample = (my_upsample_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_upsampler));
-  cinfo->upsample = (struct jpeg_upsampler *) upsample;
-  upsample->pub.start_pass = start_pass_upsample;
-  upsample->pub.upsample = sep_upsample;
-  upsample->pub.need_context_rows = FALSE; /* until we find out differently */
-
-  if (cinfo->CCIR601_sampling)	/* this isn't supported */
-    ERREXIT(cinfo, JERR_CCIR601_NOTIMPL);
-
-  /* jdmainct.c doesn't support context rows when min_DCT_scaled_size = 1,
-   * so don't ask for it.
-   */
-  do_fancy = cinfo->do_fancy_upsampling && cinfo->min_DCT_scaled_size > 1;
-
-  /* Verify we can handle the sampling factors, select per-component methods,
-   * and create storage as needed.
-   */
-  for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
-       ci++, compptr++) {
-    /* Compute size of an "input group" after IDCT scaling.  This many samples
-     * are to be converted to max_h_samp_factor * max_v_samp_factor pixels.
-     */
-    h_in_group = (compptr->h_samp_factor * compptr->DCT_scaled_size) /
-		 cinfo->min_DCT_scaled_size;
-    v_in_group = (compptr->v_samp_factor * compptr->DCT_scaled_size) /
-		 cinfo->min_DCT_scaled_size;
-    h_out_group = cinfo->max_h_samp_factor;
-    v_out_group = cinfo->max_v_samp_factor;
-    upsample->rowgroup_height[ci] = v_in_group; /* save for use later */
-    need_buffer = TRUE;
-    if (! compptr->component_needed) {
-      /* Don't bother to upsample an uninteresting component. */
-      upsample->methods[ci] = noop_upsample;
-      need_buffer = FALSE;
-    } else if (h_in_group == h_out_group && v_in_group == v_out_group) {
-      /* Fullsize components can be processed without any work. */
-      upsample->methods[ci] = fullsize_upsample;
-      need_buffer = FALSE;
-    } else if (h_in_group * 2 == h_out_group &&
-	       v_in_group == v_out_group) {
-      /* Special cases for 2h1v upsampling */
-      if (do_fancy && compptr->downsampled_width > 2)
-	upsample->methods[ci] = h2v1_fancy_upsample;
-      else
-	upsample->methods[ci] = h2v1_upsample;
-    } else if (h_in_group * 2 == h_out_group &&
-	       v_in_group * 2 == v_out_group) {
-      /* Special cases for 2h2v upsampling */
-      if (do_fancy && compptr->downsampled_width > 2) {
-	upsample->methods[ci] = h2v2_fancy_upsample;
-	upsample->pub.need_context_rows = TRUE;
-      } else
-	upsample->methods[ci] = h2v2_upsample;
-    } else if ((h_out_group % h_in_group) == 0 &&
-	       (v_out_group % v_in_group) == 0) {
-      /* Generic integral-factors upsampling method */
-      upsample->methods[ci] = int_upsample;
-      upsample->h_expand[ci] = (UINT8) (h_out_group / h_in_group);
-      upsample->v_expand[ci] = (UINT8) (v_out_group / v_in_group);
-    } else
-      ERREXIT(cinfo, JERR_FRACT_SAMPLE_NOTIMPL);
-    if (need_buffer) {
-      upsample->color_buf[ci] = (*cinfo->mem->alloc_sarray)
-	((j_common_ptr) cinfo, JPOOL_IMAGE,
-	 (JDIMENSION) jround_up((long) cinfo->output_width,
-				(long) cinfo->max_h_samp_factor),
-	 (JDIMENSION) cinfo->max_v_samp_factor);
-    }
-  }
-}
diff --git a/src/3rdparty/libjpeg/jdtrans.c b/src/3rdparty/libjpeg/jdtrans.c
deleted file mode 100644
index 6c0ab715d..000000000
--- a/src/3rdparty/libjpeg/jdtrans.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * jdtrans.c
- *
- * Copyright (C) 1995-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains library routines for transcoding decompression,
- * that is, reading raw DCT coefficient arrays from an input JPEG file.
- * The routines in jdapimin.c will also be needed by a transcoder.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/* Forward declarations */
-LOCAL(void) transdecode_master_selection JPP((j_decompress_ptr cinfo));
-
-
-/*
- * Read the coefficient arrays from a JPEG file.
- * jpeg_read_header must be completed before calling this.
- *
- * The entire image is read into a set of virtual coefficient-block arrays,
- * one per component.  The return value is a pointer to the array of
- * virtual-array descriptors.  These can be manipulated directly via the
- * JPEG memory manager, or handed off to jpeg_write_coefficients().
- * To release the memory occupied by the virtual arrays, call
- * jpeg_finish_decompress() when done with the data.
- *
- * An alternative usage is to simply obtain access to the coefficient arrays
- * during a buffered-image-mode decompression operation.  This is allowed
- * after any jpeg_finish_output() call.  The arrays can be accessed until
- * jpeg_finish_decompress() is called.  (Note that any call to the library
- * may reposition the arrays, so don't rely on access_virt_barray() results
- * to stay valid across library calls.)
- *
- * Returns NULL if suspended.  This case need be checked only if
- * a suspending data source is used.
- */
-
-GLOBAL(jvirt_barray_ptr *)
-jpeg_read_coefficients (j_decompress_ptr cinfo)
-{
-  if (cinfo->global_state == DSTATE_READY) {
-    /* First call: initialize active modules */
-    transdecode_master_selection(cinfo);
-    cinfo->global_state = DSTATE_RDCOEFS;
-  }
-  if (cinfo->global_state == DSTATE_RDCOEFS) {
-    /* Absorb whole file into the coef buffer */
-    for (;;) {
-      int retcode;
-      /* Call progress monitor hook if present */
-      if (cinfo->progress != NULL)
-	(*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo);
-      /* Absorb some more input */
-      retcode = (*cinfo->inputctl->consume_input) (cinfo);
-      if (retcode == JPEG_SUSPENDED)
-	return NULL;
-      if (retcode == JPEG_REACHED_EOI)
-	break;
-      /* Advance progress counter if appropriate */
-      if (cinfo->progress != NULL &&
-	  (retcode == JPEG_ROW_COMPLETED || retcode == JPEG_REACHED_SOS)) {
-	if (++cinfo->progress->pass_counter >= cinfo->progress->pass_limit) {
-	  /* startup underestimated number of scans; ratchet up one scan */
-	  cinfo->progress->pass_limit += (long) cinfo->total_iMCU_rows;
-	}
-      }
-    }
-    /* Set state so that jpeg_finish_decompress does the right thing */
-    cinfo->global_state = DSTATE_STOPPING;
-  }
-  /* At this point we should be in state DSTATE_STOPPING if being used
-   * standalone, or in state DSTATE_BUFIMAGE if being invoked to get access
-   * to the coefficients during a full buffered-image-mode decompression.
-   */
-  if ((cinfo->global_state == DSTATE_STOPPING ||
-       cinfo->global_state == DSTATE_BUFIMAGE) && cinfo->buffered_image) {
-    return cinfo->coef->coef_arrays;
-  }
-  /* Oops, improper usage */
-  ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
-  return NULL;			/* keep compiler happy */
-}
-
-
-/*
- * Master selection of decompression modules for transcoding.
- * This substitutes for jdmaster.c's initialization of the full decompressor.
- */
-
-LOCAL(void)
-transdecode_master_selection (j_decompress_ptr cinfo)
-{
-  /* This is effectively a buffered-image operation. */
-  cinfo->buffered_image = TRUE;
-
-  /* Entropy decoding: either Huffman or arithmetic coding. */
-  if (cinfo->arith_code) {
-    ERREXIT(cinfo, JERR_ARITH_NOTIMPL);
-  } else {
-    if (cinfo->progressive_mode) {
-#ifdef D_PROGRESSIVE_SUPPORTED
-      jinit_phuff_decoder(cinfo);
-#else
-      ERREXIT(cinfo, JERR_NOT_COMPILED);
-#endif
-    } else
-      jinit_huff_decoder(cinfo);
-  }
-
-  /* Always get a full-image coefficient buffer. */
-  jinit_d_coef_controller(cinfo, TRUE);
-
-  /* We can now tell the memory manager to allocate virtual arrays. */
-  (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo);
-
-  /* Initialize input side of decompressor to consume first scan. */
-  (*cinfo->inputctl->start_input_pass) (cinfo);
-
-  /* Initialize progress monitoring. */
-  if (cinfo->progress != NULL) {
-    int nscans;
-    /* Estimate number of scans to set pass_limit. */
-    if (cinfo->progressive_mode) {
-      /* Arbitrarily estimate 2 interleaved DC scans + 3 AC scans/component. */
-      nscans = 2 + 3 * cinfo->num_components;
-    } else if (cinfo->inputctl->has_multiple_scans) {
-      /* For a nonprogressive multiscan file, estimate 1 scan per component. */
-      nscans = cinfo->num_components;
-    } else {
-      nscans = 1;
-    }
-    cinfo->progress->pass_counter = 0L;
-    cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows * nscans;
-    cinfo->progress->completed_passes = 0;
-    cinfo->progress->total_passes = 1;
-  }
-}
diff --git a/src/3rdparty/libjpeg/jerror.c b/src/3rdparty/libjpeg/jerror.c
deleted file mode 100644
index 3da7be86a..000000000
--- a/src/3rdparty/libjpeg/jerror.c
+++ /dev/null
@@ -1,252 +0,0 @@
-/*
- * jerror.c
- *
- * Copyright (C) 1991-1998, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains simple error-reporting and trace-message routines.
- * These are suitable for Unix-like systems and others where writing to
- * stderr is the right thing to do.  Many applications will want to replace
- * some or all of these routines.
- *
- * If you define USE_WINDOWS_MESSAGEBOX in jconfig.h or in the makefile,
- * you get a Windows-specific hack to display error messages in a dialog box.
- * It ain't much, but it beats dropping error messages into the bit bucket,
- * which is what happens to output to stderr under most Windows C compilers.
- *
- * These routines are used by both the compression and decompression code.
- */
-
-/* this is not a core library module, so it doesn't define JPEG_INTERNALS */
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jversion.h"
-#include "jerror.h"
-
-#ifdef USE_WINDOWS_MESSAGEBOX
-#include <windows.h>
-#endif
-
-#ifndef EXIT_FAILURE		/* define exit() codes if not provided */
-#define EXIT_FAILURE  1
-#endif
-
-
-/*
- * Create the message string table.
- * We do this from the master message list in jerror.h by re-reading
- * jerror.h with a suitable definition for macro JMESSAGE.
- * The message table is made an external symbol just in case any applications
- * want to refer to it directly.
- */
-
-#ifdef NEED_SHORT_EXTERNAL_NAMES
-#define jpeg_std_message_table	jMsgTable
-#endif
-
-#define JMESSAGE(code,string)	string ,
-
-const char * const jpeg_std_message_table[] = {
-#include "jerror.h"
-  NULL
-};
-
-
-/*
- * Error exit handler: must not return to caller.
- *
- * Applications may override this if they want to get control back after
- * an error.  Typically one would longjmp somewhere instead of exiting.
- * The setjmp buffer can be made a private field within an expanded error
- * handler object.  Note that the info needed to generate an error message
- * is stored in the error object, so you can generate the message now or
- * later, at your convenience.
- * You should make sure that the JPEG object is cleaned up (with jpeg_abort
- * or jpeg_destroy) at some point.
- */
-
-METHODDEF(void)
-error_exit (j_common_ptr cinfo)
-{
-  /* Always display the message */
-  (*cinfo->err->output_message) (cinfo);
-
-  /* Let the memory manager delete any temp files before we die */
-  jpeg_destroy(cinfo);
-
-  exit(EXIT_FAILURE);
-}
-
-
-/*
- * Actual output of an error or trace message.
- * Applications may override this method to send JPEG messages somewhere
- * other than stderr.
- *
- * On Windows, printing to stderr is generally completely useless,
- * so we provide optional code to produce an error-dialog popup.
- * Most Windows applications will still prefer to override this routine,
- * but if they don't, it'll do something at least marginally useful.
- *
- * NOTE: to use the library in an environment that doesn't support the
- * C stdio library, you may have to delete the call to fprintf() entirely,
- * not just not use this routine.
- */
-
-METHODDEF(void)
-output_message (j_common_ptr cinfo)
-{
-  char buffer[JMSG_LENGTH_MAX];
-
-  /* Create the message */
-  (*cinfo->err->format_message) (cinfo, buffer);
-
-#ifdef USE_WINDOWS_MESSAGEBOX
-  /* Display it in a message dialog box */
-  MessageBox(GetActiveWindow(), buffer, "JPEG Library Error",
-	     MB_OK | MB_ICONERROR);
-#else
-  /* Send it to stderr, adding a newline */
-  fprintf(stderr, "%s\n", buffer);
-#endif
-}
-
-
-/*
- * Decide whether to emit a trace or warning message.
- * msg_level is one of:
- *   -1: recoverable corrupt-data warning, may want to abort.
- *    0: important advisory messages (always display to user).
- *    1: first level of tracing detail.
- *    2,3,...: successively more detailed tracing messages.
- * An application might override this method if it wanted to abort on warnings
- * or change the policy about which messages to display.
- */
-
-METHODDEF(void)
-emit_message (j_common_ptr cinfo, int msg_level)
-{
-  struct jpeg_error_mgr * err = cinfo->err;
-
-  if (msg_level < 0) {
-    /* It's a warning message.  Since corrupt files may generate many warnings,
-     * the policy implemented here is to show only the first warning,
-     * unless trace_level >= 3.
-     */
-    if (err->num_warnings == 0 || err->trace_level >= 3)
-      (*err->output_message) (cinfo);
-    /* Always count warnings in num_warnings. */
-    err->num_warnings++;
-  } else {
-    /* It's a trace message.  Show it if trace_level >= msg_level. */
-    if (err->trace_level >= msg_level)
-      (*err->output_message) (cinfo);
-  }
-}
-
-
-/*
- * Format a message string for the most recent JPEG error or message.
- * The message is stored into buffer, which should be at least JMSG_LENGTH_MAX
- * characters.  Note that no '\n' character is added to the string.
- * Few applications should need to override this method.
- */
-
-METHODDEF(void)
-format_message (j_common_ptr cinfo, char * buffer)
-{
-  struct jpeg_error_mgr * err = cinfo->err;
-  int msg_code = err->msg_code;
-  const char * msgtext = NULL;
-  const char * msgptr;
-  char ch;
-  boolean isstring;
-
-  /* Look up message string in proper table */
-  if (msg_code > 0 && msg_code <= err->last_jpeg_message) {
-    msgtext = err->jpeg_message_table[msg_code];
-  } else if (err->addon_message_table != NULL &&
-	     msg_code >= err->first_addon_message &&
-	     msg_code <= err->last_addon_message) {
-    msgtext = err->addon_message_table[msg_code - err->first_addon_message];
-  }
-
-  /* Defend against bogus message number */
-  if (msgtext == NULL) {
-    err->msg_parm.i[0] = msg_code;
-    msgtext = err->jpeg_message_table[0];
-  }
-
-  /* Check for string parameter, as indicated by %s in the message text */
-  isstring = FALSE;
-  msgptr = msgtext;
-  while ((ch = *msgptr++) != '\0') {
-    if (ch == '%') {
-      if (*msgptr == 's') isstring = TRUE;
-      break;
-    }
-  }
-
-  /* Format the message into the passed buffer */
-  if (isstring)
-    sprintf(buffer, msgtext, err->msg_parm.s);
-  else
-    sprintf(buffer, msgtext,
-	    err->msg_parm.i[0], err->msg_parm.i[1],
-	    err->msg_parm.i[2], err->msg_parm.i[3],
-	    err->msg_parm.i[4], err->msg_parm.i[5],
-	    err->msg_parm.i[6], err->msg_parm.i[7]);
-}
-
-
-/*
- * Reset error state variables at start of a new image.
- * This is called during compression startup to reset trace/error
- * processing to default state, without losing any application-specific
- * method pointers.  An application might possibly want to override
- * this method if it has additional error processing state.
- */
-
-METHODDEF(void)
-reset_error_mgr (j_common_ptr cinfo)
-{
-  cinfo->err->num_warnings = 0;
-  /* trace_level is not reset since it is an application-supplied parameter */
-  cinfo->err->msg_code = 0;	/* may be useful as a flag for "no error" */
-}
-
-
-/*
- * Fill in the standard error-handling methods in a jpeg_error_mgr object.
- * Typical call is:
- *	struct jpeg_compress_struct cinfo;
- *	struct jpeg_error_mgr err;
- *
- *	cinfo.err = jpeg_std_error(&err);
- * after which the application may override some of the methods.
- */
-
-GLOBAL(struct jpeg_error_mgr *)
-jpeg_std_error (struct jpeg_error_mgr * err)
-{
-  err->error_exit = error_exit;
-  err->emit_message = emit_message;
-  err->output_message = output_message;
-  err->format_message = format_message;
-  err->reset_error_mgr = reset_error_mgr;
-
-  err->trace_level = 0;		/* default = no tracing */
-  err->num_warnings = 0;	/* no warnings emitted yet */
-  err->msg_code = 0;		/* may be useful as a flag for "no error" */
-
-  /* Initialize message table pointers */
-  err->jpeg_message_table = jpeg_std_message_table;
-  err->last_jpeg_message = (int) JMSG_LASTMSGCODE - 1;
-
-  err->addon_message_table = NULL;
-  err->first_addon_message = 0;	/* for safety */
-  err->last_addon_message = 0;
-
-  return err;
-}
diff --git a/src/3rdparty/libjpeg/jerror.h b/src/3rdparty/libjpeg/jerror.h
deleted file mode 100644
index baa7e92d5..000000000
--- a/src/3rdparty/libjpeg/jerror.h
+++ /dev/null
@@ -1,291 +0,0 @@
-/*
- * jerror.h
- *
- * Copyright (C) 1994-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file defines the error and message codes for the JPEG library.
- * Edit this file to add new codes, or to translate the message strings to
- * some other language.
- * A set of error-reporting macros are defined too.  Some applications using
- * the JPEG library may wish to include this file to get the error codes
- * and/or the macros.
- */
-
-/*
- * To define the enum list of message codes, include this file without
- * defining macro JMESSAGE.  To create a message string table, include it
- * again with a suitable JMESSAGE definition (see jerror.c for an example).
- */
-#ifndef JMESSAGE
-#ifndef JERROR_H
-/* First time through, define the enum list */
-#define JMAKE_ENUM_LIST
-#else
-/* Repeated inclusions of this file are no-ops unless JMESSAGE is defined */
-#define JMESSAGE(code,string)
-#endif /* JERROR_H */
-#endif /* JMESSAGE */
-
-#ifdef JMAKE_ENUM_LIST
-
-typedef enum {
-
-#define JMESSAGE(code,string)	code ,
-
-#endif /* JMAKE_ENUM_LIST */
-
-JMESSAGE(JMSG_NOMESSAGE, "Bogus message code %d") /* Must be first entry! */
-
-/* For maintenance convenience, list is alphabetical by message code name */
-JMESSAGE(JERR_ARITH_NOTIMPL,
-	 "Sorry, there are legal restrictions on arithmetic coding")
-JMESSAGE(JERR_BAD_ALIGN_TYPE, "ALIGN_TYPE is wrong, please fix")
-JMESSAGE(JERR_BAD_ALLOC_CHUNK, "MAX_ALLOC_CHUNK is wrong, please fix")
-JMESSAGE(JERR_BAD_BUFFER_MODE, "Bogus buffer control mode")
-JMESSAGE(JERR_BAD_COMPONENT_ID, "Invalid component ID %d in SOS")
-JMESSAGE(JERR_BAD_DCT_COEF, "DCT coefficient out of range")
-JMESSAGE(JERR_BAD_DCTSIZE, "IDCT output block size %d not supported")
-JMESSAGE(JERR_BAD_HUFF_TABLE, "Bogus Huffman table definition")
-JMESSAGE(JERR_BAD_IN_COLORSPACE, "Bogus input colorspace")
-JMESSAGE(JERR_BAD_J_COLORSPACE, "Bogus JPEG colorspace")
-JMESSAGE(JERR_BAD_LENGTH, "Bogus marker length")
-JMESSAGE(JERR_BAD_LIB_VERSION,
-	 "Wrong JPEG library version: library is %d, caller expects %d")
-JMESSAGE(JERR_BAD_MCU_SIZE, "Sampling factors too large for interleaved scan")
-JMESSAGE(JERR_BAD_POOL_ID, "Invalid memory pool code %d")
-JMESSAGE(JERR_BAD_PRECISION, "Unsupported JPEG data precision %d")
-JMESSAGE(JERR_BAD_PROGRESSION,
-	 "Invalid progressive parameters Ss=%d Se=%d Ah=%d Al=%d")
-JMESSAGE(JERR_BAD_PROG_SCRIPT,
-	 "Invalid progressive parameters at scan script entry %d")
-JMESSAGE(JERR_BAD_SAMPLING, "Bogus sampling factors")
-JMESSAGE(JERR_BAD_SCAN_SCRIPT, "Invalid scan script at entry %d")
-JMESSAGE(JERR_BAD_STATE, "Improper call to JPEG library in state %d")
-JMESSAGE(JERR_BAD_STRUCT_SIZE,
-	 "JPEG parameter struct mismatch: library thinks size is %u, caller expects %u")
-JMESSAGE(JERR_BAD_VIRTUAL_ACCESS, "Bogus virtual array access")
-JMESSAGE(JERR_BUFFER_SIZE, "Buffer passed to JPEG library is too small")
-JMESSAGE(JERR_CANT_SUSPEND, "Suspension not allowed here")
-JMESSAGE(JERR_CCIR601_NOTIMPL, "CCIR601 sampling not implemented yet")
-JMESSAGE(JERR_COMPONENT_COUNT, "Too many color components: %d, max %d")
-JMESSAGE(JERR_CONVERSION_NOTIMPL, "Unsupported color conversion request")
-JMESSAGE(JERR_DAC_INDEX, "Bogus DAC index %d")
-JMESSAGE(JERR_DAC_VALUE, "Bogus DAC value 0x%x")
-JMESSAGE(JERR_DHT_INDEX, "Bogus DHT index %d")
-JMESSAGE(JERR_DQT_INDEX, "Bogus DQT index %d")
-JMESSAGE(JERR_EMPTY_IMAGE, "Empty JPEG image (DNL not supported)")
-JMESSAGE(JERR_EMS_READ, "Read from EMS failed")
-JMESSAGE(JERR_EMS_WRITE, "Write to EMS failed")
-JMESSAGE(JERR_EOI_EXPECTED, "Didn't expect more than one scan")
-JMESSAGE(JERR_FILE_READ, "Input file read error")
-JMESSAGE(JERR_FILE_WRITE, "Output file write error --- out of disk space?")
-JMESSAGE(JERR_FRACT_SAMPLE_NOTIMPL, "Fractional sampling not implemented yet")
-JMESSAGE(JERR_HUFF_CLEN_OVERFLOW, "Huffman code size table overflow")
-JMESSAGE(JERR_HUFF_MISSING_CODE, "Missing Huffman code table entry")
-JMESSAGE(JERR_IMAGE_TOO_BIG, "Maximum supported image dimension is %u pixels")
-JMESSAGE(JERR_INPUT_EMPTY, "Empty input file")
-JMESSAGE(JERR_INPUT_EOF, "Premature end of input file")
-JMESSAGE(JERR_MISMATCHED_QUANT_TABLE,
-	 "Cannot transcode due to multiple use of quantization table %d")
-JMESSAGE(JERR_MISSING_DATA, "Scan script does not transmit all data")
-JMESSAGE(JERR_MODE_CHANGE, "Invalid color quantization mode change")
-JMESSAGE(JERR_NOTIMPL, "Not implemented yet")
-JMESSAGE(JERR_NOT_COMPILED, "Requested feature was omitted at compile time")
-JMESSAGE(JERR_NO_BACKING_STORE, "Backing store not supported")
-JMESSAGE(JERR_NO_HUFF_TABLE, "Huffman table 0x%02x was not defined")
-JMESSAGE(JERR_NO_IMAGE, "JPEG datastream contains no image")
-JMESSAGE(JERR_NO_QUANT_TABLE, "Quantization table 0x%02x was not defined")
-JMESSAGE(JERR_NO_SOI, "Not a JPEG file: starts with 0x%02x 0x%02x")
-JMESSAGE(JERR_OUT_OF_MEMORY, "Insufficient memory (case %d)")
-JMESSAGE(JERR_QUANT_COMPONENTS,
-	 "Cannot quantize more than %d color components")
-JMESSAGE(JERR_QUANT_FEW_COLORS, "Cannot quantize to fewer than %d colors")
-JMESSAGE(JERR_QUANT_MANY_COLORS, "Cannot quantize to more than %d colors")
-JMESSAGE(JERR_SOF_DUPLICATE, "Invalid JPEG file structure: two SOF markers")
-JMESSAGE(JERR_SOF_NO_SOS, "Invalid JPEG file structure: missing SOS marker")
-JMESSAGE(JERR_SOF_UNSUPPORTED, "Unsupported JPEG process: SOF type 0x%02x")
-JMESSAGE(JERR_SOI_DUPLICATE, "Invalid JPEG file structure: two SOI markers")
-JMESSAGE(JERR_SOS_NO_SOF, "Invalid JPEG file structure: SOS before SOF")
-JMESSAGE(JERR_TFILE_CREATE, "Failed to create temporary file %s")
-JMESSAGE(JERR_TFILE_READ, "Read failed on temporary file")
-JMESSAGE(JERR_TFILE_SEEK, "Seek failed on temporary file")
-JMESSAGE(JERR_TFILE_WRITE,
-	 "Write failed on temporary file --- out of disk space?")
-JMESSAGE(JERR_TOO_LITTLE_DATA, "Application transferred too few scanlines")
-JMESSAGE(JERR_UNKNOWN_MARKER, "Unsupported marker type 0x%02x")
-JMESSAGE(JERR_VIRTUAL_BUG, "Virtual array controller messed up")
-JMESSAGE(JERR_WIDTH_OVERFLOW, "Image too wide for this implementation")
-JMESSAGE(JERR_XMS_READ, "Read from XMS failed")
-JMESSAGE(JERR_XMS_WRITE, "Write to XMS failed")
-JMESSAGE(JMSG_COPYRIGHT, JCOPYRIGHT)
-JMESSAGE(JMSG_VERSION, JVERSION)
-JMESSAGE(JTRC_16BIT_TABLES,
-	 "Caution: quantization tables are too coarse for baseline JPEG")
-JMESSAGE(JTRC_ADOBE,
-	 "Adobe APP14 marker: version %d, flags 0x%04x 0x%04x, transform %d")
-JMESSAGE(JTRC_APP0, "Unknown APP0 marker (not JFIF), length %u")
-JMESSAGE(JTRC_APP14, "Unknown APP14 marker (not Adobe), length %u")
-JMESSAGE(JTRC_DAC, "Define Arithmetic Table 0x%02x: 0x%02x")
-JMESSAGE(JTRC_DHT, "Define Huffman Table 0x%02x")
-JMESSAGE(JTRC_DQT, "Define Quantization Table %d  precision %d")
-JMESSAGE(JTRC_DRI, "Define Restart Interval %u")
-JMESSAGE(JTRC_EMS_CLOSE, "Freed EMS handle %u")
-JMESSAGE(JTRC_EMS_OPEN, "Obtained EMS handle %u")
-JMESSAGE(JTRC_EOI, "End Of Image")
-JMESSAGE(JTRC_HUFFBITS, "        %3d %3d %3d %3d %3d %3d %3d %3d")
-JMESSAGE(JTRC_JFIF, "JFIF APP0 marker: version %d.%02d, density %dx%d  %d")
-JMESSAGE(JTRC_JFIF_BADTHUMBNAILSIZE,
-	 "Warning: thumbnail image size does not match data length %u")
-JMESSAGE(JTRC_JFIF_EXTENSION,
-	 "JFIF extension marker: type 0x%02x, length %u")
-JMESSAGE(JTRC_JFIF_THUMBNAIL, "    with %d x %d thumbnail image")
-JMESSAGE(JTRC_MISC_MARKER, "Miscellaneous marker 0x%02x, length %u")
-JMESSAGE(JTRC_PARMLESS_MARKER, "Unexpected marker 0x%02x")
-JMESSAGE(JTRC_QUANTVALS, "        %4u %4u %4u %4u %4u %4u %4u %4u")
-JMESSAGE(JTRC_QUANT_3_NCOLORS, "Quantizing to %d = %d*%d*%d colors")
-JMESSAGE(JTRC_QUANT_NCOLORS, "Quantizing to %d colors")
-JMESSAGE(JTRC_QUANT_SELECTED, "Selected %d colors for quantization")
-JMESSAGE(JTRC_RECOVERY_ACTION, "At marker 0x%02x, recovery action %d")
-JMESSAGE(JTRC_RST, "RST%d")
-JMESSAGE(JTRC_SMOOTH_NOTIMPL,
-	 "Smoothing not supported with nonstandard sampling ratios")
-JMESSAGE(JTRC_SOF, "Start Of Frame 0x%02x: width=%u, height=%u, components=%d")
-JMESSAGE(JTRC_SOF_COMPONENT, "    Component %d: %dhx%dv q=%d")
-JMESSAGE(JTRC_SOI, "Start of Image")
-JMESSAGE(JTRC_SOS, "Start Of Scan: %d components")
-JMESSAGE(JTRC_SOS_COMPONENT, "    Component %d: dc=%d ac=%d")
-JMESSAGE(JTRC_SOS_PARAMS, "  Ss=%d, Se=%d, Ah=%d, Al=%d")
-JMESSAGE(JTRC_TFILE_CLOSE, "Closed temporary file %s")
-JMESSAGE(JTRC_TFILE_OPEN, "Opened temporary file %s")
-JMESSAGE(JTRC_THUMB_JPEG,
-	 "JFIF extension marker: JPEG-compressed thumbnail image, length %u")
-JMESSAGE(JTRC_THUMB_PALETTE,
-	 "JFIF extension marker: palette thumbnail image, length %u")
-JMESSAGE(JTRC_THUMB_RGB,
-	 "JFIF extension marker: RGB thumbnail image, length %u")
-JMESSAGE(JTRC_UNKNOWN_IDS,
-	 "Unrecognized component IDs %d %d %d, assuming YCbCr")
-JMESSAGE(JTRC_XMS_CLOSE, "Freed XMS handle %u")
-JMESSAGE(JTRC_XMS_OPEN, "Obtained XMS handle %u")
-JMESSAGE(JWRN_ADOBE_XFORM, "Unknown Adobe color transform code %d")
-JMESSAGE(JWRN_BOGUS_PROGRESSION,
-	 "Inconsistent progression sequence for component %d coefficient %d")
-JMESSAGE(JWRN_EXTRANEOUS_DATA,
-	 "Corrupt JPEG data: %u extraneous bytes before marker 0x%02x")
-JMESSAGE(JWRN_HIT_MARKER, "Corrupt JPEG data: premature end of data segment")
-JMESSAGE(JWRN_HUFF_BAD_CODE, "Corrupt JPEG data: bad Huffman code")
-JMESSAGE(JWRN_JFIF_MAJOR, "Warning: unknown JFIF revision number %d.%02d")
-JMESSAGE(JWRN_JPEG_EOF, "Premature end of JPEG file")
-JMESSAGE(JWRN_MUST_RESYNC,
-	 "Corrupt JPEG data: found marker 0x%02x instead of RST%d")
-JMESSAGE(JWRN_NOT_SETQUENTIAL, "Invalid SOS parameters for sequential JPEG")
-JMESSAGE(JWRN_TOO_MUCH_DATA, "Application transferred too many scanlines")
-
-#ifdef JMAKE_ENUM_LIST
-
-  JMSG_LASTMSGCODE
-} J_MESSAGE_CODE;
-
-#undef JMAKE_ENUM_LIST
-#endif /* JMAKE_ENUM_LIST */
-
-/* Zap JMESSAGE macro so that future re-inclusions do nothing by default */
-#undef JMESSAGE
-
-
-#ifndef JERROR_H
-#define JERROR_H
-
-/* Macros to simplify using the error and trace message stuff */
-/* The first parameter is either type of cinfo pointer */
-
-/* Fatal errors (print message and exit) */
-#define ERREXIT(cinfo,code)  \
-  ((cinfo)->err->msg_code = (code), \
-   (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
-#define ERREXIT1(cinfo,code,p1)  \
-  ((cinfo)->err->msg_code = (code), \
-   (cinfo)->err->msg_parm.i[0] = (p1), \
-   (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
-#define ERREXIT2(cinfo,code,p1,p2)  \
-  ((cinfo)->err->msg_code = (code), \
-   (cinfo)->err->msg_parm.i[0] = (p1), \
-   (cinfo)->err->msg_parm.i[1] = (p2), \
-   (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
-#define ERREXIT3(cinfo,code,p1,p2,p3)  \
-  ((cinfo)->err->msg_code = (code), \
-   (cinfo)->err->msg_parm.i[0] = (p1), \
-   (cinfo)->err->msg_parm.i[1] = (p2), \
-   (cinfo)->err->msg_parm.i[2] = (p3), \
-   (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
-#define ERREXIT4(cinfo,code,p1,p2,p3,p4)  \
-  ((cinfo)->err->msg_code = (code), \
-   (cinfo)->err->msg_parm.i[0] = (p1), \
-   (cinfo)->err->msg_parm.i[1] = (p2), \
-   (cinfo)->err->msg_parm.i[2] = (p3), \
-   (cinfo)->err->msg_parm.i[3] = (p4), \
-   (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
-#define ERREXITS(cinfo,code,str)  \
-  ((cinfo)->err->msg_code = (code), \
-   strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \
-   (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo)))
-
-#define MAKESTMT(stuff)		do { stuff } while (0)
-
-/* Nonfatal errors (we can keep going, but the data is probably corrupt) */
-#define WARNMS(cinfo,code)  \
-  ((cinfo)->err->msg_code = (code), \
-   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1))
-#define WARNMS1(cinfo,code,p1)  \
-  ((cinfo)->err->msg_code = (code), \
-   (cinfo)->err->msg_parm.i[0] = (p1), \
-   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1))
-#define WARNMS2(cinfo,code,p1,p2)  \
-  ((cinfo)->err->msg_code = (code), \
-   (cinfo)->err->msg_parm.i[0] = (p1), \
-   (cinfo)->err->msg_parm.i[1] = (p2), \
-   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1))
-
-/* Informational/debugging messages */
-#define TRACEMS(cinfo,lvl,code)  \
-  ((cinfo)->err->msg_code = (code), \
-   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)))
-#define TRACEMS1(cinfo,lvl,code,p1)  \
-  ((cinfo)->err->msg_code = (code), \
-   (cinfo)->err->msg_parm.i[0] = (p1), \
-   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)))
-#define TRACEMS2(cinfo,lvl,code,p1,p2)  \
-  ((cinfo)->err->msg_code = (code), \
-   (cinfo)->err->msg_parm.i[0] = (p1), \
-   (cinfo)->err->msg_parm.i[1] = (p2), \
-   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)))
-#define TRACEMS3(cinfo,lvl,code,p1,p2,p3)  \
-  MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \
-	   _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); \
-	   (cinfo)->err->msg_code = (code); \
-	   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); )
-#define TRACEMS4(cinfo,lvl,code,p1,p2,p3,p4)  \
-  MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \
-	   _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \
-	   (cinfo)->err->msg_code = (code); \
-	   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); )
-#define TRACEMS5(cinfo,lvl,code,p1,p2,p3,p4,p5)  \
-  MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \
-	   _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \
-	   _mp[4] = (p5); \
-	   (cinfo)->err->msg_code = (code); \
-	   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); )
-#define TRACEMS8(cinfo,lvl,code,p1,p2,p3,p4,p5,p6,p7,p8)  \
-  MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \
-	   _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \
-	   _mp[4] = (p5); _mp[5] = (p6); _mp[6] = (p7); _mp[7] = (p8); \
-	   (cinfo)->err->msg_code = (code); \
-	   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); )
-#define TRACEMSS(cinfo,lvl,code,str)  \
-  ((cinfo)->err->msg_code = (code), \
-   strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \
-   (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)))
-
-#endif /* JERROR_H */
diff --git a/src/3rdparty/libjpeg/jfdctflt.c b/src/3rdparty/libjpeg/jfdctflt.c
deleted file mode 100644
index 79d7a0078..000000000
--- a/src/3rdparty/libjpeg/jfdctflt.c
+++ /dev/null
@@ -1,168 +0,0 @@
-/*
- * jfdctflt.c
- *
- * Copyright (C) 1994-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains a floating-point implementation of the
- * forward DCT (Discrete Cosine Transform).
- *
- * This implementation should be more accurate than either of the integer
- * DCT implementations.  However, it may not give the same results on all
- * machines because of differences in roundoff behavior.  Speed will depend
- * on the hardware's floating point capacity.
- *
- * A 2-D DCT can be done by 1-D DCT on each row followed by 1-D DCT
- * on each column.  Direct algorithms are also available, but they are
- * much more complex and seem not to be any faster when reduced to code.
- *
- * This implementation is based on Arai, Agui, and Nakajima's algorithm for
- * scaled DCT.  Their original paper (Trans. IEICE E-71(11):1095) is in
- * Japanese, but the algorithm is described in the Pennebaker & Mitchell
- * JPEG textbook (see REFERENCES section in file README).  The following code
- * is based directly on figure 4-8 in P&M.
- * While an 8-point DCT cannot be done in less than 11 multiplies, it is
- * possible to arrange the computation so that many of the multiplies are
- * simple scalings of the final outputs.  These multiplies can then be
- * folded into the multiplications or divisions by the JPEG quantization
- * table entries.  The AA&N method leaves only 5 multiplies and 29 adds
- * to be done in the DCT itself.
- * The primary disadvantage of this method is that with a fixed-point
- * implementation, accuracy is lost due to imprecise representation of the
- * scaled quantization values.  However, that problem does not arise if
- * we use floating point arithmetic.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jdct.h"		/* Private declarations for DCT subsystem */
-
-#ifdef DCT_FLOAT_SUPPORTED
-
-
-/*
- * This module is specialized to the case DCTSIZE = 8.
- */
-
-#if DCTSIZE != 8
-  Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */
-#endif
-
-
-/*
- * Perform the forward DCT on one block of samples.
- */
-
-GLOBAL(void)
-jpeg_fdct_float (FAST_FLOAT * data)
-{
-  FAST_FLOAT tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
-  FAST_FLOAT tmp10, tmp11, tmp12, tmp13;
-  FAST_FLOAT z1, z2, z3, z4, z5, z11, z13;
-  FAST_FLOAT *dataptr;
-  int ctr;
-
-  /* Pass 1: process rows. */
-
-  dataptr = data;
-  for (ctr = DCTSIZE-1; ctr >= 0; ctr--) {
-    tmp0 = dataptr[0] + dataptr[7];
-    tmp7 = dataptr[0] - dataptr[7];
-    tmp1 = dataptr[1] + dataptr[6];
-    tmp6 = dataptr[1] - dataptr[6];
-    tmp2 = dataptr[2] + dataptr[5];
-    tmp5 = dataptr[2] - dataptr[5];
-    tmp3 = dataptr[3] + dataptr[4];
-    tmp4 = dataptr[3] - dataptr[4];
-    
-    /* Even part */
-    
-    tmp10 = tmp0 + tmp3;	/* phase 2 */
-    tmp13 = tmp0 - tmp3;
-    tmp11 = tmp1 + tmp2;
-    tmp12 = tmp1 - tmp2;
-    
-    dataptr[0] = tmp10 + tmp11; /* phase 3 */
-    dataptr[4] = tmp10 - tmp11;
-    
-    z1 = (tmp12 + tmp13) * ((FAST_FLOAT) 0.707106781); /* c4 */
-    dataptr[2] = tmp13 + z1;	/* phase 5 */
-    dataptr[6] = tmp13 - z1;
-    
-    /* Odd part */
-
-    tmp10 = tmp4 + tmp5;	/* phase 2 */
-    tmp11 = tmp5 + tmp6;
-    tmp12 = tmp6 + tmp7;
-
-    /* The rotator is modified from fig 4-8 to avoid extra negations. */
-    z5 = (tmp10 - tmp12) * ((FAST_FLOAT) 0.382683433); /* c6 */
-    z2 = ((FAST_FLOAT) 0.541196100) * tmp10 + z5; /* c2-c6 */
-    z4 = ((FAST_FLOAT) 1.306562965) * tmp12 + z5; /* c2+c6 */
-    z3 = tmp11 * ((FAST_FLOAT) 0.707106781); /* c4 */
-
-    z11 = tmp7 + z3;		/* phase 5 */
-    z13 = tmp7 - z3;
-
-    dataptr[5] = z13 + z2;	/* phase 6 */
-    dataptr[3] = z13 - z2;
-    dataptr[1] = z11 + z4;
-    dataptr[7] = z11 - z4;
-
-    dataptr += DCTSIZE;		/* advance pointer to next row */
-  }
-
-  /* Pass 2: process columns. */
-
-  dataptr = data;
-  for (ctr = DCTSIZE-1; ctr >= 0; ctr--) {
-    tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7];
-    tmp7 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7];
-    tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6];
-    tmp6 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6];
-    tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5];
-    tmp5 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5];
-    tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4];
-    tmp4 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4];
-    
-    /* Even part */
-    
-    tmp10 = tmp0 + tmp3;	/* phase 2 */
-    tmp13 = tmp0 - tmp3;
-    tmp11 = tmp1 + tmp2;
-    tmp12 = tmp1 - tmp2;
-    
-    dataptr[DCTSIZE*0] = tmp10 + tmp11; /* phase 3 */
-    dataptr[DCTSIZE*4] = tmp10 - tmp11;
-    
-    z1 = (tmp12 + tmp13) * ((FAST_FLOAT) 0.707106781); /* c4 */
-    dataptr[DCTSIZE*2] = tmp13 + z1; /* phase 5 */
-    dataptr[DCTSIZE*6] = tmp13 - z1;
-    
-    /* Odd part */
-
-    tmp10 = tmp4 + tmp5;	/* phase 2 */
-    tmp11 = tmp5 + tmp6;
-    tmp12 = tmp6 + tmp7;
-
-    /* The rotator is modified from fig 4-8 to avoid extra negations. */
-    z5 = (tmp10 - tmp12) * ((FAST_FLOAT) 0.382683433); /* c6 */
-    z2 = ((FAST_FLOAT) 0.541196100) * tmp10 + z5; /* c2-c6 */
-    z4 = ((FAST_FLOAT) 1.306562965) * tmp12 + z5; /* c2+c6 */
-    z3 = tmp11 * ((FAST_FLOAT) 0.707106781); /* c4 */
-
-    z11 = tmp7 + z3;		/* phase 5 */
-    z13 = tmp7 - z3;
-
-    dataptr[DCTSIZE*5] = z13 + z2; /* phase 6 */
-    dataptr[DCTSIZE*3] = z13 - z2;
-    dataptr[DCTSIZE*1] = z11 + z4;
-    dataptr[DCTSIZE*7] = z11 - z4;
-
-    dataptr++;			/* advance pointer to next column */
-  }
-}
-
-#endif /* DCT_FLOAT_SUPPORTED */
diff --git a/src/3rdparty/libjpeg/jfdctfst.c b/src/3rdparty/libjpeg/jfdctfst.c
deleted file mode 100644
index ccb378a3b..000000000
--- a/src/3rdparty/libjpeg/jfdctfst.c
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * jfdctfst.c
- *
- * Copyright (C) 1994-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains a fast, not so accurate integer implementation of the
- * forward DCT (Discrete Cosine Transform).
- *
- * A 2-D DCT can be done by 1-D DCT on each row followed by 1-D DCT
- * on each column.  Direct algorithms are also available, but they are
- * much more complex and seem not to be any faster when reduced to code.
- *
- * This implementation is based on Arai, Agui, and Nakajima's algorithm for
- * scaled DCT.  Their original paper (Trans. IEICE E-71(11):1095) is in
- * Japanese, but the algorithm is described in the Pennebaker & Mitchell
- * JPEG textbook (see REFERENCES section in file README).  The following code
- * is based directly on figure 4-8 in P&M.
- * While an 8-point DCT cannot be done in less than 11 multiplies, it is
- * possible to arrange the computation so that many of the multiplies are
- * simple scalings of the final outputs.  These multiplies can then be
- * folded into the multiplications or divisions by the JPEG quantization
- * table entries.  The AA&N method leaves only 5 multiplies and 29 adds
- * to be done in the DCT itself.
- * The primary disadvantage of this method is that with fixed-point math,
- * accuracy is lost due to imprecise representation of the scaled
- * quantization values.  The smaller the quantization table entry, the less
- * precise the scaled value, so this implementation does worse with high-
- * quality-setting files than with low-quality ones.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jdct.h"		/* Private declarations for DCT subsystem */
-
-#ifdef DCT_IFAST_SUPPORTED
-
-
-/*
- * This module is specialized to the case DCTSIZE = 8.
- */
-
-#if DCTSIZE != 8
-  Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */
-#endif
-
-
-/* Scaling decisions are generally the same as in the LL&M algorithm;
- * see jfdctint.c for more details.  However, we choose to descale
- * (right shift) multiplication products as soon as they are formed,
- * rather than carrying additional fractional bits into subsequent additions.
- * This compromises accuracy slightly, but it lets us save a few shifts.
- * More importantly, 16-bit arithmetic is then adequate (for 8-bit samples)
- * everywhere except in the multiplications proper; this saves a good deal
- * of work on 16-bit-int machines.
- *
- * Again to save a few shifts, the intermediate results between pass 1 and
- * pass 2 are not upscaled, but are represented only to integral precision.
- *
- * A final compromise is to represent the multiplicative constants to only
- * 8 fractional bits, rather than 13.  This saves some shifting work on some
- * machines, and may also reduce the cost of multiplication (since there
- * are fewer one-bits in the constants).
- */
-
-#define CONST_BITS  8
-
-
-/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus
- * causing a lot of useless floating-point operations at run time.
- * To get around this we use the following pre-calculated constants.
- * If you change CONST_BITS you may want to add appropriate values.
- * (With a reasonable C compiler, you can just rely on the FIX() macro...)
- */
-
-#if CONST_BITS == 8
-#define FIX_0_382683433  ((INT32)   98)		/* FIX(0.382683433) */
-#define FIX_0_541196100  ((INT32)  139)		/* FIX(0.541196100) */
-#define FIX_0_707106781  ((INT32)  181)		/* FIX(0.707106781) */
-#define FIX_1_306562965  ((INT32)  334)		/* FIX(1.306562965) */
-#else
-#define FIX_0_382683433  FIX(0.382683433)
-#define FIX_0_541196100  FIX(0.541196100)
-#define FIX_0_707106781  FIX(0.707106781)
-#define FIX_1_306562965  FIX(1.306562965)
-#endif
-
-
-/* We can gain a little more speed, with a further compromise in accuracy,
- * by omitting the addition in a descaling shift.  This yields an incorrectly
- * rounded result half the time...
- */
-
-#ifndef USE_ACCURATE_ROUNDING
-#undef DESCALE
-#define DESCALE(x,n)  RIGHT_SHIFT(x, n)
-#endif
-
-
-/* Multiply a DCTELEM variable by an INT32 constant, and immediately
- * descale to yield a DCTELEM result.
- */
-
-#define MULTIPLY(var,const)  ((DCTELEM) DESCALE((var) * (const), CONST_BITS))
-
-
-/*
- * Perform the forward DCT on one block of samples.
- */
-
-GLOBAL(void)
-jpeg_fdct_ifast (DCTELEM * data)
-{
-  DCTELEM tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
-  DCTELEM tmp10, tmp11, tmp12, tmp13;
-  DCTELEM z1, z2, z3, z4, z5, z11, z13;
-  DCTELEM *dataptr;
-  int ctr;
-  SHIFT_TEMPS
-
-  /* Pass 1: process rows. */
-
-  dataptr = data;
-  for (ctr = DCTSIZE-1; ctr >= 0; ctr--) {
-    tmp0 = dataptr[0] + dataptr[7];
-    tmp7 = dataptr[0] - dataptr[7];
-    tmp1 = dataptr[1] + dataptr[6];
-    tmp6 = dataptr[1] - dataptr[6];
-    tmp2 = dataptr[2] + dataptr[5];
-    tmp5 = dataptr[2] - dataptr[5];
-    tmp3 = dataptr[3] + dataptr[4];
-    tmp4 = dataptr[3] - dataptr[4];
-    
-    /* Even part */
-    
-    tmp10 = tmp0 + tmp3;	/* phase 2 */
-    tmp13 = tmp0 - tmp3;
-    tmp11 = tmp1 + tmp2;
-    tmp12 = tmp1 - tmp2;
-    
-    dataptr[0] = tmp10 + tmp11; /* phase 3 */
-    dataptr[4] = tmp10 - tmp11;
-    
-    z1 = MULTIPLY(tmp12 + tmp13, FIX_0_707106781); /* c4 */
-    dataptr[2] = tmp13 + z1;	/* phase 5 */
-    dataptr[6] = tmp13 - z1;
-    
-    /* Odd part */
-
-    tmp10 = tmp4 + tmp5;	/* phase 2 */
-    tmp11 = tmp5 + tmp6;
-    tmp12 = tmp6 + tmp7;
-
-    /* The rotator is modified from fig 4-8 to avoid extra negations. */
-    z5 = MULTIPLY(tmp10 - tmp12, FIX_0_382683433); /* c6 */
-    z2 = MULTIPLY(tmp10, FIX_0_541196100) + z5; /* c2-c6 */
-    z4 = MULTIPLY(tmp12, FIX_1_306562965) + z5; /* c2+c6 */
-    z3 = MULTIPLY(tmp11, FIX_0_707106781); /* c4 */
-
-    z11 = tmp7 + z3;		/* phase 5 */
-    z13 = tmp7 - z3;
-
-    dataptr[5] = z13 + z2;	/* phase 6 */
-    dataptr[3] = z13 - z2;
-    dataptr[1] = z11 + z4;
-    dataptr[7] = z11 - z4;
-
-    dataptr += DCTSIZE;		/* advance pointer to next row */
-  }
-
-  /* Pass 2: process columns. */
-
-  dataptr = data;
-  for (ctr = DCTSIZE-1; ctr >= 0; ctr--) {
-    tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7];
-    tmp7 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7];
-    tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6];
-    tmp6 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6];
-    tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5];
-    tmp5 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5];
-    tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4];
-    tmp4 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4];
-    
-    /* Even part */
-    
-    tmp10 = tmp0 + tmp3;	/* phase 2 */
-    tmp13 = tmp0 - tmp3;
-    tmp11 = tmp1 + tmp2;
-    tmp12 = tmp1 - tmp2;
-    
-    dataptr[DCTSIZE*0] = tmp10 + tmp11; /* phase 3 */
-    dataptr[DCTSIZE*4] = tmp10 - tmp11;
-    
-    z1 = MULTIPLY(tmp12 + tmp13, FIX_0_707106781); /* c4 */
-    dataptr[DCTSIZE*2] = tmp13 + z1; /* phase 5 */
-    dataptr[DCTSIZE*6] = tmp13 - z1;
-    
-    /* Odd part */
-
-    tmp10 = tmp4 + tmp5;	/* phase 2 */
-    tmp11 = tmp5 + tmp6;
-    tmp12 = tmp6 + tmp7;
-
-    /* The rotator is modified from fig 4-8 to avoid extra negations. */
-    z5 = MULTIPLY(tmp10 - tmp12, FIX_0_382683433); /* c6 */
-    z2 = MULTIPLY(tmp10, FIX_0_541196100) + z5; /* c2-c6 */
-    z4 = MULTIPLY(tmp12, FIX_1_306562965) + z5; /* c2+c6 */
-    z3 = MULTIPLY(tmp11, FIX_0_707106781); /* c4 */
-
-    z11 = tmp7 + z3;		/* phase 5 */
-    z13 = tmp7 - z3;
-
-    dataptr[DCTSIZE*5] = z13 + z2; /* phase 6 */
-    dataptr[DCTSIZE*3] = z13 - z2;
-    dataptr[DCTSIZE*1] = z11 + z4;
-    dataptr[DCTSIZE*7] = z11 - z4;
-
-    dataptr++;			/* advance pointer to next column */
-  }
-}
-
-#endif /* DCT_IFAST_SUPPORTED */
diff --git a/src/3rdparty/libjpeg/jfdctint.c b/src/3rdparty/libjpeg/jfdctint.c
deleted file mode 100644
index 0a78b64ae..000000000
--- a/src/3rdparty/libjpeg/jfdctint.c
+++ /dev/null
@@ -1,283 +0,0 @@
-/*
- * jfdctint.c
- *
- * Copyright (C) 1991-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains a slow-but-accurate integer implementation of the
- * forward DCT (Discrete Cosine Transform).
- *
- * A 2-D DCT can be done by 1-D DCT on each row followed by 1-D DCT
- * on each column.  Direct algorithms are also available, but they are
- * much more complex and seem not to be any faster when reduced to code.
- *
- * This implementation is based on an algorithm described in
- *   C. Loeffler, A. Ligtenberg and G. Moschytz, "Practical Fast 1-D DCT
- *   Algorithms with 11 Multiplications", Proc. Int'l. Conf. on Acoustics,
- *   Speech, and Signal Processing 1989 (ICASSP '89), pp. 988-991.
- * The primary algorithm described there uses 11 multiplies and 29 adds.
- * We use their alternate method with 12 multiplies and 32 adds.
- * The advantage of this method is that no data path contains more than one
- * multiplication; this allows a very simple and accurate implementation in
- * scaled fixed-point arithmetic, with a minimal number of shifts.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jdct.h"		/* Private declarations for DCT subsystem */
-
-#ifdef DCT_ISLOW_SUPPORTED
-
-
-/*
- * This module is specialized to the case DCTSIZE = 8.
- */
-
-#if DCTSIZE != 8
-  Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */
-#endif
-
-
-/*
- * The poop on this scaling stuff is as follows:
- *
- * Each 1-D DCT step produces outputs which are a factor of sqrt(N)
- * larger than the true DCT outputs.  The final outputs are therefore
- * a factor of N larger than desired; since N=8 this can be cured by
- * a simple right shift at the end of the algorithm.  The advantage of
- * this arrangement is that we save two multiplications per 1-D DCT,
- * because the y0 and y4 outputs need not be divided by sqrt(N).
- * In the IJG code, this factor of 8 is removed by the quantization step
- * (in jcdctmgr.c), NOT in this module.
- *
- * We have to do addition and subtraction of the integer inputs, which
- * is no problem, and multiplication by fractional constants, which is
- * a problem to do in integer arithmetic.  We multiply all the constants
- * by CONST_SCALE and convert them to integer constants (thus retaining
- * CONST_BITS bits of precision in the constants).  After doing a
- * multiplication we have to divide the product by CONST_SCALE, with proper
- * rounding, to produce the correct output.  This division can be done
- * cheaply as a right shift of CONST_BITS bits.  We postpone shifting
- * as long as possible so that partial sums can be added together with
- * full fractional precision.
- *
- * The outputs of the first pass are scaled up by PASS1_BITS bits so that
- * they are represented to better-than-integral precision.  These outputs
- * require BITS_IN_JSAMPLE + PASS1_BITS + 3 bits; this fits in a 16-bit word
- * with the recommended scaling.  (For 12-bit sample data, the intermediate
- * array is INT32 anyway.)
- *
- * To avoid overflow of the 32-bit intermediate results in pass 2, we must
- * have BITS_IN_JSAMPLE + CONST_BITS + PASS1_BITS <= 26.  Error analysis
- * shows that the values given below are the most effective.
- */
-
-#if BITS_IN_JSAMPLE == 8
-#define CONST_BITS  13
-#define PASS1_BITS  2
-#else
-#define CONST_BITS  13
-#define PASS1_BITS  1		/* lose a little precision to avoid overflow */
-#endif
-
-/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus
- * causing a lot of useless floating-point operations at run time.
- * To get around this we use the following pre-calculated constants.
- * If you change CONST_BITS you may want to add appropriate values.
- * (With a reasonable C compiler, you can just rely on the FIX() macro...)
- */
-
-#if CONST_BITS == 13
-#define FIX_0_298631336  ((INT32)  2446)	/* FIX(0.298631336) */
-#define FIX_0_390180644  ((INT32)  3196)	/* FIX(0.390180644) */
-#define FIX_0_541196100  ((INT32)  4433)	/* FIX(0.541196100) */
-#define FIX_0_765366865  ((INT32)  6270)	/* FIX(0.765366865) */
-#define FIX_0_899976223  ((INT32)  7373)	/* FIX(0.899976223) */
-#define FIX_1_175875602  ((INT32)  9633)	/* FIX(1.175875602) */
-#define FIX_1_501321110  ((INT32)  12299)	/* FIX(1.501321110) */
-#define FIX_1_847759065  ((INT32)  15137)	/* FIX(1.847759065) */
-#define FIX_1_961570560  ((INT32)  16069)	/* FIX(1.961570560) */
-#define FIX_2_053119869  ((INT32)  16819)	/* FIX(2.053119869) */
-#define FIX_2_562915447  ((INT32)  20995)	/* FIX(2.562915447) */
-#define FIX_3_072711026  ((INT32)  25172)	/* FIX(3.072711026) */
-#else
-#define FIX_0_298631336  FIX(0.298631336)
-#define FIX_0_390180644  FIX(0.390180644)
-#define FIX_0_541196100  FIX(0.541196100)
-#define FIX_0_765366865  FIX(0.765366865)
-#define FIX_0_899976223  FIX(0.899976223)
-#define FIX_1_175875602  FIX(1.175875602)
-#define FIX_1_501321110  FIX(1.501321110)
-#define FIX_1_847759065  FIX(1.847759065)
-#define FIX_1_961570560  FIX(1.961570560)
-#define FIX_2_053119869  FIX(2.053119869)
-#define FIX_2_562915447  FIX(2.562915447)
-#define FIX_3_072711026  FIX(3.072711026)
-#endif
-
-
-/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result.
- * For 8-bit samples with the recommended scaling, all the variable
- * and constant values involved are no more than 16 bits wide, so a
- * 16x16->32 bit multiply can be used instead of a full 32x32 multiply.
- * For 12-bit samples, a full 32-bit multiplication will be needed.
- */
-
-#if BITS_IN_JSAMPLE == 8
-#define MULTIPLY(var,const)  MULTIPLY16C16(var,const)
-#else
-#define MULTIPLY(var,const)  ((var) * (const))
-#endif
-
-
-/*
- * Perform the forward DCT on one block of samples.
- */
-
-GLOBAL(void)
-jpeg_fdct_islow (DCTELEM * data)
-{
-  INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
-  INT32 tmp10, tmp11, tmp12, tmp13;
-  INT32 z1, z2, z3, z4, z5;
-  DCTELEM *dataptr;
-  int ctr;
-  SHIFT_TEMPS
-
-  /* Pass 1: process rows. */
-  /* Note results are scaled up by sqrt(8) compared to a true DCT; */
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
-
-  dataptr = data;
-  for (ctr = DCTSIZE-1; ctr >= 0; ctr--) {
-    tmp0 = dataptr[0] + dataptr[7];
-    tmp7 = dataptr[0] - dataptr[7];
-    tmp1 = dataptr[1] + dataptr[6];
-    tmp6 = dataptr[1] - dataptr[6];
-    tmp2 = dataptr[2] + dataptr[5];
-    tmp5 = dataptr[2] - dataptr[5];
-    tmp3 = dataptr[3] + dataptr[4];
-    tmp4 = dataptr[3] - dataptr[4];
-    
-    /* Even part per LL&M figure 1 --- note that published figure is faulty;
-     * rotator "sqrt(2)*c1" should be "sqrt(2)*c6".
-     */
-    
-    tmp10 = tmp0 + tmp3;
-    tmp13 = tmp0 - tmp3;
-    tmp11 = tmp1 + tmp2;
-    tmp12 = tmp1 - tmp2;
-    
-    dataptr[0] = (DCTELEM) ((tmp10 + tmp11) << PASS1_BITS);
-    dataptr[4] = (DCTELEM) ((tmp10 - tmp11) << PASS1_BITS);
-    
-    z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100);
-    dataptr[2] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp13, FIX_0_765366865),
-				   CONST_BITS-PASS1_BITS);
-    dataptr[6] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp12, - FIX_1_847759065),
-				   CONST_BITS-PASS1_BITS);
-    
-    /* Odd part per figure 8 --- note paper omits factor of sqrt(2).
-     * cK represents cos(K*pi/16).
-     * i0..i3 in the paper are tmp4..tmp7 here.
-     */
-    
-    z1 = tmp4 + tmp7;
-    z2 = tmp5 + tmp6;
-    z3 = tmp4 + tmp6;
-    z4 = tmp5 + tmp7;
-    z5 = MULTIPLY(z3 + z4, FIX_1_175875602); /* sqrt(2) * c3 */
-    
-    tmp4 = MULTIPLY(tmp4, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */
-    tmp5 = MULTIPLY(tmp5, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */
-    tmp6 = MULTIPLY(tmp6, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */
-    tmp7 = MULTIPLY(tmp7, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */
-    z1 = MULTIPLY(z1, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */
-    z2 = MULTIPLY(z2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */
-    z3 = MULTIPLY(z3, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */
-    z4 = MULTIPLY(z4, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */
-    
-    z3 += z5;
-    z4 += z5;
-    
-    dataptr[7] = (DCTELEM) DESCALE(tmp4 + z1 + z3, CONST_BITS-PASS1_BITS);
-    dataptr[5] = (DCTELEM) DESCALE(tmp5 + z2 + z4, CONST_BITS-PASS1_BITS);
-    dataptr[3] = (DCTELEM) DESCALE(tmp6 + z2 + z3, CONST_BITS-PASS1_BITS);
-    dataptr[1] = (DCTELEM) DESCALE(tmp7 + z1 + z4, CONST_BITS-PASS1_BITS);
-    
-    dataptr += DCTSIZE;		/* advance pointer to next row */
-  }
-
-  /* Pass 2: process columns.
-   * We remove the PASS1_BITS scaling, but leave the results scaled up
-   * by an overall factor of 8.
-   */
-
-  dataptr = data;
-  for (ctr = DCTSIZE-1; ctr >= 0; ctr--) {
-    tmp0 = dataptr[DCTSIZE*0] + dataptr[DCTSIZE*7];
-    tmp7 = dataptr[DCTSIZE*0] - dataptr[DCTSIZE*7];
-    tmp1 = dataptr[DCTSIZE*1] + dataptr[DCTSIZE*6];
-    tmp6 = dataptr[DCTSIZE*1] - dataptr[DCTSIZE*6];
-    tmp2 = dataptr[DCTSIZE*2] + dataptr[DCTSIZE*5];
-    tmp5 = dataptr[DCTSIZE*2] - dataptr[DCTSIZE*5];
-    tmp3 = dataptr[DCTSIZE*3] + dataptr[DCTSIZE*4];
-    tmp4 = dataptr[DCTSIZE*3] - dataptr[DCTSIZE*4];
-    
-    /* Even part per LL&M figure 1 --- note that published figure is faulty;
-     * rotator "sqrt(2)*c1" should be "sqrt(2)*c6".
-     */
-    
-    tmp10 = tmp0 + tmp3;
-    tmp13 = tmp0 - tmp3;
-    tmp11 = tmp1 + tmp2;
-    tmp12 = tmp1 - tmp2;
-    
-    dataptr[DCTSIZE*0] = (DCTELEM) DESCALE(tmp10 + tmp11, PASS1_BITS);
-    dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(tmp10 - tmp11, PASS1_BITS);
-    
-    z1 = MULTIPLY(tmp12 + tmp13, FIX_0_541196100);
-    dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp13, FIX_0_765366865),
-					   CONST_BITS+PASS1_BITS);
-    dataptr[DCTSIZE*6] = (DCTELEM) DESCALE(z1 + MULTIPLY(tmp12, - FIX_1_847759065),
-					   CONST_BITS+PASS1_BITS);
-    
-    /* Odd part per figure 8 --- note paper omits factor of sqrt(2).
-     * cK represents cos(K*pi/16).
-     * i0..i3 in the paper are tmp4..tmp7 here.
-     */
-    
-    z1 = tmp4 + tmp7;
-    z2 = tmp5 + tmp6;
-    z3 = tmp4 + tmp6;
-    z4 = tmp5 + tmp7;
-    z5 = MULTIPLY(z3 + z4, FIX_1_175875602); /* sqrt(2) * c3 */
-    
-    tmp4 = MULTIPLY(tmp4, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */
-    tmp5 = MULTIPLY(tmp5, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */
-    tmp6 = MULTIPLY(tmp6, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */
-    tmp7 = MULTIPLY(tmp7, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */
-    z1 = MULTIPLY(z1, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */
-    z2 = MULTIPLY(z2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */
-    z3 = MULTIPLY(z3, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */
-    z4 = MULTIPLY(z4, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */
-    
-    z3 += z5;
-    z4 += z5;
-    
-    dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp4 + z1 + z3,
-					   CONST_BITS+PASS1_BITS);
-    dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp5 + z2 + z4,
-					   CONST_BITS+PASS1_BITS);
-    dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp6 + z2 + z3,
-					   CONST_BITS+PASS1_BITS);
-    dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp7 + z1 + z4,
-					   CONST_BITS+PASS1_BITS);
-    
-    dataptr++;			/* advance pointer to next column */
-  }
-}
-
-#endif /* DCT_ISLOW_SUPPORTED */
diff --git a/src/3rdparty/libjpeg/jidctflt.c b/src/3rdparty/libjpeg/jidctflt.c
deleted file mode 100644
index a4893f843..000000000
--- a/src/3rdparty/libjpeg/jidctflt.c
+++ /dev/null
@@ -1,242 +0,0 @@
-/*
- * jidctflt.c
- *
- * Copyright (C) 1994-1998, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains a floating-point implementation of the
- * inverse DCT (Discrete Cosine Transform).  In the IJG code, this routine
- * must also perform dequantization of the input coefficients.
- *
- * This implementation should be more accurate than either of the integer
- * IDCT implementations.  However, it may not give the same results on all
- * machines because of differences in roundoff behavior.  Speed will depend
- * on the hardware's floating point capacity.
- *
- * A 2-D IDCT can be done by 1-D IDCT on each column followed by 1-D IDCT
- * on each row (or vice versa, but it's more convenient to emit a row at
- * a time).  Direct algorithms are also available, but they are much more
- * complex and seem not to be any faster when reduced to code.
- *
- * This implementation is based on Arai, Agui, and Nakajima's algorithm for
- * scaled DCT.  Their original paper (Trans. IEICE E-71(11):1095) is in
- * Japanese, but the algorithm is described in the Pennebaker & Mitchell
- * JPEG textbook (see REFERENCES section in file README).  The following code
- * is based directly on figure 4-8 in P&M.
- * While an 8-point DCT cannot be done in less than 11 multiplies, it is
- * possible to arrange the computation so that many of the multiplies are
- * simple scalings of the final outputs.  These multiplies can then be
- * folded into the multiplications or divisions by the JPEG quantization
- * table entries.  The AA&N method leaves only 5 multiplies and 29 adds
- * to be done in the DCT itself.
- * The primary disadvantage of this method is that with a fixed-point
- * implementation, accuracy is lost due to imprecise representation of the
- * scaled quantization values.  However, that problem does not arise if
- * we use floating point arithmetic.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jdct.h"		/* Private declarations for DCT subsystem */
-
-#ifdef DCT_FLOAT_SUPPORTED
-
-
-/*
- * This module is specialized to the case DCTSIZE = 8.
- */
-
-#if DCTSIZE != 8
-  Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */
-#endif
-
-
-/* Dequantize a coefficient by multiplying it by the multiplier-table
- * entry; produce a float result.
- */
-
-#define DETQUANTIZE(coef,quantval)  (((FAST_FLOAT) (coef)) * (quantval))
-
-
-/*
- * Perform dequantization and inverse DCT on one block of coefficients.
- */
-
-GLOBAL(void)
-jpeg_idct_float (j_decompress_ptr cinfo, jpeg_component_info * compptr,
-		 JCOEFPTR coef_block,
-		 JSAMPARRAY output_buf, JDIMENSION output_col)
-{
-  FAST_FLOAT tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
-  FAST_FLOAT tmp10, tmp11, tmp12, tmp13;
-  FAST_FLOAT z5, z10, z11, z12, z13;
-  JCOEFPTR inptr;
-  FLOAT_MULT_TYPE * quantptr;
-  FAST_FLOAT * wsptr;
-  JSAMPROW outptr;
-  JSAMPLE *range_limit = IDCT_range_limit(cinfo);
-  int ctr;
-  FAST_FLOAT workspace[DCTSIZE2]; /* buffers data between passes */
-  SHIFT_TEMPS
-
-  /* Pass 1: process columns from input, store into work array. */
-
-  inptr = coef_block;
-  quantptr = (FLOAT_MULT_TYPE *) compptr->dct_table;
-  wsptr = workspace;
-  for (ctr = DCTSIZE; ctr > 0; ctr--) {
-    /* Due to quantization, we will usually find that many of the input
-     * coefficients are zero, especially the AC terms.  We can exploit this
-     * by short-circuiting the IDCT calculation for any column in which all
-     * the AC terms are zero.  In that case each output is equal to the
-     * DC coefficient (with scale factor as needed).
-     * With typical images and quantization tables, half or more of the
-     * column DCT calculations can be simplified this way.
-     */
-    
-    if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 &&
-	inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 &&
-	inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 &&
-	inptr[DCTSIZE*7] == 0) {
-      /* AC terms all zero */
-      FAST_FLOAT dcval = DETQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]);
-      
-      wsptr[DCTSIZE*0] = dcval;
-      wsptr[DCTSIZE*1] = dcval;
-      wsptr[DCTSIZE*2] = dcval;
-      wsptr[DCTSIZE*3] = dcval;
-      wsptr[DCTSIZE*4] = dcval;
-      wsptr[DCTSIZE*5] = dcval;
-      wsptr[DCTSIZE*6] = dcval;
-      wsptr[DCTSIZE*7] = dcval;
-      
-      inptr++;			/* advance pointers to next column */
-      quantptr++;
-      wsptr++;
-      continue;
-    }
-    
-    /* Even part */
-
-    tmp0 = DETQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]);
-    tmp1 = DETQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]);
-    tmp2 = DETQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]);
-    tmp3 = DETQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]);
-
-    tmp10 = tmp0 + tmp2;	/* phase 3 */
-    tmp11 = tmp0 - tmp2;
-
-    tmp13 = tmp1 + tmp3;	/* phases 5-3 */
-    tmp12 = (tmp1 - tmp3) * ((FAST_FLOAT) 1.414213562) - tmp13; /* 2*c4 */
-
-    tmp0 = tmp10 + tmp13;	/* phase 2 */
-    tmp3 = tmp10 - tmp13;
-    tmp1 = tmp11 + tmp12;
-    tmp2 = tmp11 - tmp12;
-    
-    /* Odd part */
-
-    tmp4 = DETQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]);
-    tmp5 = DETQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]);
-    tmp6 = DETQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]);
-    tmp7 = DETQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]);
-
-    z13 = tmp6 + tmp5;		/* phase 6 */
-    z10 = tmp6 - tmp5;
-    z11 = tmp4 + tmp7;
-    z12 = tmp4 - tmp7;
-
-    tmp7 = z11 + z13;		/* phase 5 */
-    tmp11 = (z11 - z13) * ((FAST_FLOAT) 1.414213562); /* 2*c4 */
-
-    z5 = (z10 + z12) * ((FAST_FLOAT) 1.847759065); /* 2*c2 */
-    tmp10 = ((FAST_FLOAT) 1.082392200) * z12 - z5; /* 2*(c2-c6) */
-    tmp12 = ((FAST_FLOAT) -2.613125930) * z10 + z5; /* -2*(c2+c6) */
-
-    tmp6 = tmp12 - tmp7;	/* phase 2 */
-    tmp5 = tmp11 - tmp6;
-    tmp4 = tmp10 + tmp5;
-
-    wsptr[DCTSIZE*0] = tmp0 + tmp7;
-    wsptr[DCTSIZE*7] = tmp0 - tmp7;
-    wsptr[DCTSIZE*1] = tmp1 + tmp6;
-    wsptr[DCTSIZE*6] = tmp1 - tmp6;
-    wsptr[DCTSIZE*2] = tmp2 + tmp5;
-    wsptr[DCTSIZE*5] = tmp2 - tmp5;
-    wsptr[DCTSIZE*4] = tmp3 + tmp4;
-    wsptr[DCTSIZE*3] = tmp3 - tmp4;
-
-    inptr++;			/* advance pointers to next column */
-    quantptr++;
-    wsptr++;
-  }
-  
-  /* Pass 2: process rows from work array, store into output array. */
-  /* Note that we must descale the results by a factor of 8 == 2**3. */
-
-  wsptr = workspace;
-  for (ctr = 0; ctr < DCTSIZE; ctr++) {
-    outptr = output_buf[ctr] + output_col;
-    /* Rows of zeroes can be exploited in the same way as we did with columns.
-     * However, the column calculation has created many nonzero AC terms, so
-     * the simplification applies less often (typically 5% to 10% of the time).
-     * And testing floats for zero is relatively expensive, so we don't bother.
-     */
-    
-    /* Even part */
-
-    tmp10 = wsptr[0] + wsptr[4];
-    tmp11 = wsptr[0] - wsptr[4];
-
-    tmp13 = wsptr[2] + wsptr[6];
-    tmp12 = (wsptr[2] - wsptr[6]) * ((FAST_FLOAT) 1.414213562) - tmp13;
-
-    tmp0 = tmp10 + tmp13;
-    tmp3 = tmp10 - tmp13;
-    tmp1 = tmp11 + tmp12;
-    tmp2 = tmp11 - tmp12;
-
-    /* Odd part */
-
-    z13 = wsptr[5] + wsptr[3];
-    z10 = wsptr[5] - wsptr[3];
-    z11 = wsptr[1] + wsptr[7];
-    z12 = wsptr[1] - wsptr[7];
-
-    tmp7 = z11 + z13;
-    tmp11 = (z11 - z13) * ((FAST_FLOAT) 1.414213562);
-
-    z5 = (z10 + z12) * ((FAST_FLOAT) 1.847759065); /* 2*c2 */
-    tmp10 = ((FAST_FLOAT) 1.082392200) * z12 - z5; /* 2*(c2-c6) */
-    tmp12 = ((FAST_FLOAT) -2.613125930) * z10 + z5; /* -2*(c2+c6) */
-
-    tmp6 = tmp12 - tmp7;
-    tmp5 = tmp11 - tmp6;
-    tmp4 = tmp10 + tmp5;
-
-    /* Final output stage: scale down by a factor of 8 and range-limit */
-
-    outptr[0] = range_limit[(int) DESCALE((INT32) (tmp0 + tmp7), 3)
-			    & RANGE_MASK];
-    outptr[7] = range_limit[(int) DESCALE((INT32) (tmp0 - tmp7), 3)
-			    & RANGE_MASK];
-    outptr[1] = range_limit[(int) DESCALE((INT32) (tmp1 + tmp6), 3)
-			    & RANGE_MASK];
-    outptr[6] = range_limit[(int) DESCALE((INT32) (tmp1 - tmp6), 3)
-			    & RANGE_MASK];
-    outptr[2] = range_limit[(int) DESCALE((INT32) (tmp2 + tmp5), 3)
-			    & RANGE_MASK];
-    outptr[5] = range_limit[(int) DESCALE((INT32) (tmp2 - tmp5), 3)
-			    & RANGE_MASK];
-    outptr[4] = range_limit[(int) DESCALE((INT32) (tmp3 + tmp4), 3)
-			    & RANGE_MASK];
-    outptr[3] = range_limit[(int) DESCALE((INT32) (tmp3 - tmp4), 3)
-			    & RANGE_MASK];
-    
-    wsptr += DCTSIZE;		/* advance pointer to next row */
-  }
-}
-
-#endif /* DCT_FLOAT_SUPPORTED */
diff --git a/src/3rdparty/libjpeg/jidctfst.c b/src/3rdparty/libjpeg/jidctfst.c
deleted file mode 100644
index 3cbdb81e3..000000000
--- a/src/3rdparty/libjpeg/jidctfst.c
+++ /dev/null
@@ -1,368 +0,0 @@
-/*
- * jidctfst.c
- *
- * Copyright (C) 1994-1998, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains a fast, not so accurate integer implementation of the
- * inverse DCT (Discrete Cosine Transform).  In the IJG code, this routine
- * must also perform dequantization of the input coefficients.
- *
- * A 2-D IDCT can be done by 1-D IDCT on each column followed by 1-D IDCT
- * on each row (or vice versa, but it's more convenient to emit a row at
- * a time).  Direct algorithms are also available, but they are much more
- * complex and seem not to be any faster when reduced to code.
- *
- * This implementation is based on Arai, Agui, and Nakajima's algorithm for
- * scaled DCT.  Their original paper (Trans. IEICE E-71(11):1095) is in
- * Japanese, but the algorithm is described in the Pennebaker & Mitchell
- * JPEG textbook (see REFERENCES section in file README).  The following code
- * is based directly on figure 4-8 in P&M.
- * While an 8-point DCT cannot be done in less than 11 multiplies, it is
- * possible to arrange the computation so that many of the multiplies are
- * simple scalings of the final outputs.  These multiplies can then be
- * folded into the multiplications or divisions by the JPEG quantization
- * table entries.  The AA&N method leaves only 5 multiplies and 29 adds
- * to be done in the DCT itself.
- * The primary disadvantage of this method is that with fixed-point math,
- * accuracy is lost due to imprecise representation of the scaled
- * quantization values.  The smaller the quantization table entry, the less
- * precise the scaled value, so this implementation does worse with high-
- * quality-setting files than with low-quality ones.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jdct.h"		/* Private declarations for DCT subsystem */
-
-#ifdef DCT_IFAST_SUPPORTED
-
-
-/*
- * This module is specialized to the case DCTSIZE = 8.
- */
-
-#if DCTSIZE != 8
-  Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */
-#endif
-
-
-/* Scaling decisions are generally the same as in the LL&M algorithm;
- * see jidctint.c for more details.  However, we choose to descale
- * (right shift) multiplication products as soon as they are formed,
- * rather than carrying additional fractional bits into subsequent additions.
- * This compromises accuracy slightly, but it lets us save a few shifts.
- * More importantly, 16-bit arithmetic is then adequate (for 8-bit samples)
- * everywhere except in the multiplications proper; this saves a good deal
- * of work on 16-bit-int machines.
- *
- * The dequantized coefficients are not integers because the AA&N scaling
- * factors have been incorporated.  We represent them scaled up by PASS1_BITS,
- * so that the first and second IDCT rounds have the same input scaling.
- * For 8-bit JSAMPLEs, we choose IFAST_SCALE_BITS = PASS1_BITS so as to
- * avoid a descaling shift; this compromises accuracy rather drastically
- * for small quantization table entries, but it saves a lot of shifts.
- * For 12-bit JSAMPLEs, there's no hope of using 16x16 multiplies anyway,
- * so we use a much larger scaling factor to preserve accuracy.
- *
- * A final compromise is to represent the multiplicative constants to only
- * 8 fractional bits, rather than 13.  This saves some shifting work on some
- * machines, and may also reduce the cost of multiplication (since there
- * are fewer one-bits in the constants).
- */
-
-#if BITS_IN_JSAMPLE == 8
-#define CONST_BITS  8
-#define PASS1_BITS  2
-#else
-#define CONST_BITS  8
-#define PASS1_BITS  1		/* lose a little precision to avoid overflow */
-#endif
-
-/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus
- * causing a lot of useless floating-point operations at run time.
- * To get around this we use the following pre-calculated constants.
- * If you change CONST_BITS you may want to add appropriate values.
- * (With a reasonable C compiler, you can just rely on the FIX() macro...)
- */
-
-#if CONST_BITS == 8
-#define FIX_1_082392200  ((INT32)  277)		/* FIX(1.082392200) */
-#define FIX_1_414213562  ((INT32)  362)		/* FIX(1.414213562) */
-#define FIX_1_847759065  ((INT32)  473)		/* FIX(1.847759065) */
-#define FIX_2_613125930  ((INT32)  669)		/* FIX(2.613125930) */
-#else
-#define FIX_1_082392200  FIX(1.082392200)
-#define FIX_1_414213562  FIX(1.414213562)
-#define FIX_1_847759065  FIX(1.847759065)
-#define FIX_2_613125930  FIX(2.613125930)
-#endif
-
-
-/* We can gain a little more speed, with a further compromise in accuracy,
- * by omitting the addition in a descaling shift.  This yields an incorrectly
- * rounded result half the time...
- */
-
-#ifndef USE_ACCURATE_ROUNDING
-#undef DESCALE
-#define DESCALE(x,n)  RIGHT_SHIFT(x, n)
-#endif
-
-
-/* Multiply a DCTELEM variable by an INT32 constant, and immediately
- * descale to yield a DCTELEM result.
- */
-
-#define MULTIPLY(var,const)  ((DCTELEM) DESCALE((var) * (const), CONST_BITS))
-
-
-/* Dequantize a coefficient by multiplying it by the multiplier-table
- * entry; produce a DCTELEM result.  For 8-bit data a 16x16->16
- * multiplication will do.  For 12-bit data, the multiplier table is
- * declared INT32, so a 32-bit multiply will be used.
- */
-
-#if BITS_IN_JSAMPLE == 8
-#define DETQUANTIZE(coef,quantval)  (((IFAST_MULT_TYPE) (coef)) * (quantval))
-#else
-#define DETQUANTIZE(coef,quantval)  \
-	DESCALE((coef)*(quantval), IFAST_SCALE_BITS-PASS1_BITS)
-#endif
-
-
-/* Like DESCALE, but applies to a DCTELEM and produces an int.
- * We assume that int right shift is unsigned if INT32 right shift is.
- */
-
-#ifdef RIGHT_SHIFT_IS_UNSIGNED
-#define ISHIFT_TEMPS	DCTELEM ishift_temp;
-#if BITS_IN_JSAMPLE == 8
-#define DCTELEMBITS  16		/* DCTELEM may be 16 or 32 bits */
-#else
-#define DCTELEMBITS  32		/* DCTELEM must be 32 bits */
-#endif
-#define IRIGHT_SHIFT(x,shft)  \
-    ((ishift_temp = (x)) < 0 ? \
-     (ishift_temp >> (shft)) | ((~((DCTELEM) 0)) << (DCTELEMBITS-(shft))) : \
-     (ishift_temp >> (shft)))
-#else
-#define ISHIFT_TEMPS
-#define IRIGHT_SHIFT(x,shft)	((x) >> (shft))
-#endif
-
-#ifdef USE_ACCURATE_ROUNDING
-#define IDESCALE(x,n)  ((int) IRIGHT_SHIFT((x) + (1 << ((n)-1)), n))
-#else
-#define IDESCALE(x,n)  ((int) IRIGHT_SHIFT(x, n))
-#endif
-
-
-/*
- * Perform dequantization and inverse DCT on one block of coefficients.
- */
-
-GLOBAL(void)
-jpeg_idct_ifast (j_decompress_ptr cinfo, jpeg_component_info * compptr,
-		 JCOEFPTR coef_block,
-		 JSAMPARRAY output_buf, JDIMENSION output_col)
-{
-  DCTELEM tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
-  DCTELEM tmp10, tmp11, tmp12, tmp13;
-  DCTELEM z5, z10, z11, z12, z13;
-  JCOEFPTR inptr;
-  IFAST_MULT_TYPE * quantptr;
-  int * wsptr;
-  JSAMPROW outptr;
-  JSAMPLE *range_limit = IDCT_range_limit(cinfo);
-  int ctr;
-  int workspace[DCTSIZE2];	/* buffers data between passes */
-  SHIFT_TEMPS			/* for DESCALE */
-  ISHIFT_TEMPS			/* for IDESCALE */
-
-  /* Pass 1: process columns from input, store into work array. */
-
-  inptr = coef_block;
-  quantptr = (IFAST_MULT_TYPE *) compptr->dct_table;
-  wsptr = workspace;
-  for (ctr = DCTSIZE; ctr > 0; ctr--) {
-    /* Due to quantization, we will usually find that many of the input
-     * coefficients are zero, especially the AC terms.  We can exploit this
-     * by short-circuiting the IDCT calculation for any column in which all
-     * the AC terms are zero.  In that case each output is equal to the
-     * DC coefficient (with scale factor as needed).
-     * With typical images and quantization tables, half or more of the
-     * column DCT calculations can be simplified this way.
-     */
-    
-    if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 &&
-	inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 &&
-	inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 &&
-	inptr[DCTSIZE*7] == 0) {
-      /* AC terms all zero */
-      int dcval = (int) DETQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]);
-
-      wsptr[DCTSIZE*0] = dcval;
-      wsptr[DCTSIZE*1] = dcval;
-      wsptr[DCTSIZE*2] = dcval;
-      wsptr[DCTSIZE*3] = dcval;
-      wsptr[DCTSIZE*4] = dcval;
-      wsptr[DCTSIZE*5] = dcval;
-      wsptr[DCTSIZE*6] = dcval;
-      wsptr[DCTSIZE*7] = dcval;
-      
-      inptr++;			/* advance pointers to next column */
-      quantptr++;
-      wsptr++;
-      continue;
-    }
-    
-    /* Even part */
-
-    tmp0 = DETQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]);
-    tmp1 = DETQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]);
-    tmp2 = DETQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]);
-    tmp3 = DETQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]);
-
-    tmp10 = tmp0 + tmp2;	/* phase 3 */
-    tmp11 = tmp0 - tmp2;
-
-    tmp13 = tmp1 + tmp3;	/* phases 5-3 */
-    tmp12 = MULTIPLY(tmp1 - tmp3, FIX_1_414213562) - tmp13; /* 2*c4 */
-
-    tmp0 = tmp10 + tmp13;	/* phase 2 */
-    tmp3 = tmp10 - tmp13;
-    tmp1 = tmp11 + tmp12;
-    tmp2 = tmp11 - tmp12;
-    
-    /* Odd part */
-
-    tmp4 = DETQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]);
-    tmp5 = DETQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]);
-    tmp6 = DETQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]);
-    tmp7 = DETQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]);
-
-    z13 = tmp6 + tmp5;		/* phase 6 */
-    z10 = tmp6 - tmp5;
-    z11 = tmp4 + tmp7;
-    z12 = tmp4 - tmp7;
-
-    tmp7 = z11 + z13;		/* phase 5 */
-    tmp11 = MULTIPLY(z11 - z13, FIX_1_414213562); /* 2*c4 */
-
-    z5 = MULTIPLY(z10 + z12, FIX_1_847759065); /* 2*c2 */
-    tmp10 = MULTIPLY(z12, FIX_1_082392200) - z5; /* 2*(c2-c6) */
-    tmp12 = MULTIPLY(z10, - FIX_2_613125930) + z5; /* -2*(c2+c6) */
-
-    tmp6 = tmp12 - tmp7;	/* phase 2 */
-    tmp5 = tmp11 - tmp6;
-    tmp4 = tmp10 + tmp5;
-
-    wsptr[DCTSIZE*0] = (int) (tmp0 + tmp7);
-    wsptr[DCTSIZE*7] = (int) (tmp0 - tmp7);
-    wsptr[DCTSIZE*1] = (int) (tmp1 + tmp6);
-    wsptr[DCTSIZE*6] = (int) (tmp1 - tmp6);
-    wsptr[DCTSIZE*2] = (int) (tmp2 + tmp5);
-    wsptr[DCTSIZE*5] = (int) (tmp2 - tmp5);
-    wsptr[DCTSIZE*4] = (int) (tmp3 + tmp4);
-    wsptr[DCTSIZE*3] = (int) (tmp3 - tmp4);
-
-    inptr++;			/* advance pointers to next column */
-    quantptr++;
-    wsptr++;
-  }
-  
-  /* Pass 2: process rows from work array, store into output array. */
-  /* Note that we must descale the results by a factor of 8 == 2**3, */
-  /* and also undo the PASS1_BITS scaling. */
-
-  wsptr = workspace;
-  for (ctr = 0; ctr < DCTSIZE; ctr++) {
-    outptr = output_buf[ctr] + output_col;
-    /* Rows of zeroes can be exploited in the same way as we did with columns.
-     * However, the column calculation has created many nonzero AC terms, so
-     * the simplification applies less often (typically 5% to 10% of the time).
-     * On machines with very fast multiplication, it's possible that the
-     * test takes more time than it's worth.  In that case this section
-     * may be commented out.
-     */
-    
-#ifndef NO_ZERO_ROW_TEST
-    if (wsptr[1] == 0 && wsptr[2] == 0 && wsptr[3] == 0 && wsptr[4] == 0 &&
-	wsptr[5] == 0 && wsptr[6] == 0 && wsptr[7] == 0) {
-      /* AC terms all zero */
-      JSAMPLE dcval = range_limit[IDESCALE(wsptr[0], PASS1_BITS+3)
-				  & RANGE_MASK];
-      
-      outptr[0] = dcval;
-      outptr[1] = dcval;
-      outptr[2] = dcval;
-      outptr[3] = dcval;
-      outptr[4] = dcval;
-      outptr[5] = dcval;
-      outptr[6] = dcval;
-      outptr[7] = dcval;
-
-      wsptr += DCTSIZE;		/* advance pointer to next row */
-      continue;
-    }
-#endif
-    
-    /* Even part */
-
-    tmp10 = ((DCTELEM) wsptr[0] + (DCTELEM) wsptr[4]);
-    tmp11 = ((DCTELEM) wsptr[0] - (DCTELEM) wsptr[4]);
-
-    tmp13 = ((DCTELEM) wsptr[2] + (DCTELEM) wsptr[6]);
-    tmp12 = MULTIPLY((DCTELEM) wsptr[2] - (DCTELEM) wsptr[6], FIX_1_414213562)
-	    - tmp13;
-
-    tmp0 = tmp10 + tmp13;
-    tmp3 = tmp10 - tmp13;
-    tmp1 = tmp11 + tmp12;
-    tmp2 = tmp11 - tmp12;
-
-    /* Odd part */
-
-    z13 = (DCTELEM) wsptr[5] + (DCTELEM) wsptr[3];
-    z10 = (DCTELEM) wsptr[5] - (DCTELEM) wsptr[3];
-    z11 = (DCTELEM) wsptr[1] + (DCTELEM) wsptr[7];
-    z12 = (DCTELEM) wsptr[1] - (DCTELEM) wsptr[7];
-
-    tmp7 = z11 + z13;		/* phase 5 */
-    tmp11 = MULTIPLY(z11 - z13, FIX_1_414213562); /* 2*c4 */
-
-    z5 = MULTIPLY(z10 + z12, FIX_1_847759065); /* 2*c2 */
-    tmp10 = MULTIPLY(z12, FIX_1_082392200) - z5; /* 2*(c2-c6) */
-    tmp12 = MULTIPLY(z10, - FIX_2_613125930) + z5; /* -2*(c2+c6) */
-
-    tmp6 = tmp12 - tmp7;	/* phase 2 */
-    tmp5 = tmp11 - tmp6;
-    tmp4 = tmp10 + tmp5;
-
-    /* Final output stage: scale down by a factor of 8 and range-limit */
-
-    outptr[0] = range_limit[IDESCALE(tmp0 + tmp7, PASS1_BITS+3)
-			    & RANGE_MASK];
-    outptr[7] = range_limit[IDESCALE(tmp0 - tmp7, PASS1_BITS+3)
-			    & RANGE_MASK];
-    outptr[1] = range_limit[IDESCALE(tmp1 + tmp6, PASS1_BITS+3)
-			    & RANGE_MASK];
-    outptr[6] = range_limit[IDESCALE(tmp1 - tmp6, PASS1_BITS+3)
-			    & RANGE_MASK];
-    outptr[2] = range_limit[IDESCALE(tmp2 + tmp5, PASS1_BITS+3)
-			    & RANGE_MASK];
-    outptr[5] = range_limit[IDESCALE(tmp2 - tmp5, PASS1_BITS+3)
-			    & RANGE_MASK];
-    outptr[4] = range_limit[IDESCALE(tmp3 + tmp4, PASS1_BITS+3)
-			    & RANGE_MASK];
-    outptr[3] = range_limit[IDESCALE(tmp3 - tmp4, PASS1_BITS+3)
-			    & RANGE_MASK];
-
-    wsptr += DCTSIZE;		/* advance pointer to next row */
-  }
-}
-
-#endif /* DCT_IFAST_SUPPORTED */
diff --git a/src/3rdparty/libjpeg/jidctint.c b/src/3rdparty/libjpeg/jidctint.c
deleted file mode 100644
index 1f5f39309..000000000
--- a/src/3rdparty/libjpeg/jidctint.c
+++ /dev/null
@@ -1,389 +0,0 @@
-/*
- * jidctint.c
- *
- * Copyright (C) 1991-1998, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains a slow-but-accurate integer implementation of the
- * inverse DCT (Discrete Cosine Transform).  In the IJG code, this routine
- * must also perform dequantization of the input coefficients.
- *
- * A 2-D IDCT can be done by 1-D IDCT on each column followed by 1-D IDCT
- * on each row (or vice versa, but it's more convenient to emit a row at
- * a time).  Direct algorithms are also available, but they are much more
- * complex and seem not to be any faster when reduced to code.
- *
- * This implementation is based on an algorithm described in
- *   C. Loeffler, A. Ligtenberg and G. Moschytz, "Practical Fast 1-D DCT
- *   Algorithms with 11 Multiplications", Proc. Int'l. Conf. on Acoustics,
- *   Speech, and Signal Processing 1989 (ICASSP '89), pp. 988-991.
- * The primary algorithm described there uses 11 multiplies and 29 adds.
- * We use their alternate method with 12 multiplies and 32 adds.
- * The advantage of this method is that no data path contains more than one
- * multiplication; this allows a very simple and accurate implementation in
- * scaled fixed-point arithmetic, with a minimal number of shifts.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jdct.h"		/* Private declarations for DCT subsystem */
-
-#ifdef DCT_ISLOW_SUPPORTED
-
-
-/*
- * This module is specialized to the case DCTSIZE = 8.
- */
-
-#if DCTSIZE != 8
-  Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */
-#endif
-
-
-/*
- * The poop on this scaling stuff is as follows:
- *
- * Each 1-D IDCT step produces outputs which are a factor of sqrt(N)
- * larger than the true IDCT outputs.  The final outputs are therefore
- * a factor of N larger than desired; since N=8 this can be cured by
- * a simple right shift at the end of the algorithm.  The advantage of
- * this arrangement is that we save two multiplications per 1-D IDCT,
- * because the y0 and y4 inputs need not be divided by sqrt(N).
- *
- * We have to do addition and subtraction of the integer inputs, which
- * is no problem, and multiplication by fractional constants, which is
- * a problem to do in integer arithmetic.  We multiply all the constants
- * by CONST_SCALE and convert them to integer constants (thus retaining
- * CONST_BITS bits of precision in the constants).  After doing a
- * multiplication we have to divide the product by CONST_SCALE, with proper
- * rounding, to produce the correct output.  This division can be done
- * cheaply as a right shift of CONST_BITS bits.  We postpone shifting
- * as long as possible so that partial sums can be added together with
- * full fractional precision.
- *
- * The outputs of the first pass are scaled up by PASS1_BITS bits so that
- * they are represented to better-than-integral precision.  These outputs
- * require BITS_IN_JSAMPLE + PASS1_BITS + 3 bits; this fits in a 16-bit word
- * with the recommended scaling.  (To scale up 12-bit sample data further, an
- * intermediate INT32 array would be needed.)
- *
- * To avoid overflow of the 32-bit intermediate results in pass 2, we must
- * have BITS_IN_JSAMPLE + CONST_BITS + PASS1_BITS <= 26.  Error analysis
- * shows that the values given below are the most effective.
- */
-
-#if BITS_IN_JSAMPLE == 8
-#define CONST_BITS  13
-#define PASS1_BITS  2
-#else
-#define CONST_BITS  13
-#define PASS1_BITS  1		/* lose a little precision to avoid overflow */
-#endif
-
-/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus
- * causing a lot of useless floating-point operations at run time.
- * To get around this we use the following pre-calculated constants.
- * If you change CONST_BITS you may want to add appropriate values.
- * (With a reasonable C compiler, you can just rely on the FIX() macro...)
- */
-
-#if CONST_BITS == 13
-#define FIX_0_298631336  ((INT32)  2446)	/* FIX(0.298631336) */
-#define FIX_0_390180644  ((INT32)  3196)	/* FIX(0.390180644) */
-#define FIX_0_541196100  ((INT32)  4433)	/* FIX(0.541196100) */
-#define FIX_0_765366865  ((INT32)  6270)	/* FIX(0.765366865) */
-#define FIX_0_899976223  ((INT32)  7373)	/* FIX(0.899976223) */
-#define FIX_1_175875602  ((INT32)  9633)	/* FIX(1.175875602) */
-#define FIX_1_501321110  ((INT32)  12299)	/* FIX(1.501321110) */
-#define FIX_1_847759065  ((INT32)  15137)	/* FIX(1.847759065) */
-#define FIX_1_961570560  ((INT32)  16069)	/* FIX(1.961570560) */
-#define FIX_2_053119869  ((INT32)  16819)	/* FIX(2.053119869) */
-#define FIX_2_562915447  ((INT32)  20995)	/* FIX(2.562915447) */
-#define FIX_3_072711026  ((INT32)  25172)	/* FIX(3.072711026) */
-#else
-#define FIX_0_298631336  FIX(0.298631336)
-#define FIX_0_390180644  FIX(0.390180644)
-#define FIX_0_541196100  FIX(0.541196100)
-#define FIX_0_765366865  FIX(0.765366865)
-#define FIX_0_899976223  FIX(0.899976223)
-#define FIX_1_175875602  FIX(1.175875602)
-#define FIX_1_501321110  FIX(1.501321110)
-#define FIX_1_847759065  FIX(1.847759065)
-#define FIX_1_961570560  FIX(1.961570560)
-#define FIX_2_053119869  FIX(2.053119869)
-#define FIX_2_562915447  FIX(2.562915447)
-#define FIX_3_072711026  FIX(3.072711026)
-#endif
-
-
-/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result.
- * For 8-bit samples with the recommended scaling, all the variable
- * and constant values involved are no more than 16 bits wide, so a
- * 16x16->32 bit multiply can be used instead of a full 32x32 multiply.
- * For 12-bit samples, a full 32-bit multiplication will be needed.
- */
-
-#if BITS_IN_JSAMPLE == 8
-#define MULTIPLY(var,const)  MULTIPLY16C16(var,const)
-#else
-#define MULTIPLY(var,const)  ((var) * (const))
-#endif
-
-
-/* Dequantize a coefficient by multiplying it by the multiplier-table
- * entry; produce an int result.  In this module, both inputs and result
- * are 16 bits or less, so either int or short multiply will work.
- */
-
-#define DETQUANTIZE(coef,quantval)  (((ISLOW_MULT_TYPE) (coef)) * (quantval))
-
-
-/*
- * Perform dequantization and inverse DCT on one block of coefficients.
- */
-
-GLOBAL(void)
-jpeg_idct_islow (j_decompress_ptr cinfo, jpeg_component_info * compptr,
-		 JCOEFPTR coef_block,
-		 JSAMPARRAY output_buf, JDIMENSION output_col)
-{
-  INT32 tmp0, tmp1, tmp2, tmp3;
-  INT32 tmp10, tmp11, tmp12, tmp13;
-  INT32 z1, z2, z3, z4, z5;
-  JCOEFPTR inptr;
-  ISLOW_MULT_TYPE * quantptr;
-  int * wsptr;
-  JSAMPROW outptr;
-  JSAMPLE *range_limit = IDCT_range_limit(cinfo);
-  int ctr;
-  int workspace[DCTSIZE2];	/* buffers data between passes */
-  SHIFT_TEMPS
-
-  /* Pass 1: process columns from input, store into work array. */
-  /* Note results are scaled up by sqrt(8) compared to a true IDCT; */
-  /* furthermore, we scale the results by 2**PASS1_BITS. */
-
-  inptr = coef_block;
-  quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
-  wsptr = workspace;
-  for (ctr = DCTSIZE; ctr > 0; ctr--) {
-    /* Due to quantization, we will usually find that many of the input
-     * coefficients are zero, especially the AC terms.  We can exploit this
-     * by short-circuiting the IDCT calculation for any column in which all
-     * the AC terms are zero.  In that case each output is equal to the
-     * DC coefficient (with scale factor as needed).
-     * With typical images and quantization tables, half or more of the
-     * column DCT calculations can be simplified this way.
-     */
-    
-    if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 &&
-	inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*4] == 0 &&
-	inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*6] == 0 &&
-	inptr[DCTSIZE*7] == 0) {
-      /* AC terms all zero */
-      int dcval = DETQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]) << PASS1_BITS;
-      
-      wsptr[DCTSIZE*0] = dcval;
-      wsptr[DCTSIZE*1] = dcval;
-      wsptr[DCTSIZE*2] = dcval;
-      wsptr[DCTSIZE*3] = dcval;
-      wsptr[DCTSIZE*4] = dcval;
-      wsptr[DCTSIZE*5] = dcval;
-      wsptr[DCTSIZE*6] = dcval;
-      wsptr[DCTSIZE*7] = dcval;
-      
-      inptr++;			/* advance pointers to next column */
-      quantptr++;
-      wsptr++;
-      continue;
-    }
-    
-    /* Even part: reverse the even part of the forward DCT. */
-    /* The rotator is sqrt(2)*c(-6). */
-    
-    z2 = DETQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]);
-    z3 = DETQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]);
-    
-    z1 = MULTIPLY(z2 + z3, FIX_0_541196100);
-    tmp2 = z1 + MULTIPLY(z3, - FIX_1_847759065);
-    tmp3 = z1 + MULTIPLY(z2, FIX_0_765366865);
-    
-    z2 = DETQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]);
-    z3 = DETQUANTIZE(inptr[DCTSIZE*4], quantptr[DCTSIZE*4]);
-
-    tmp0 = (z2 + z3) << CONST_BITS;
-    tmp1 = (z2 - z3) << CONST_BITS;
-    
-    tmp10 = tmp0 + tmp3;
-    tmp13 = tmp0 - tmp3;
-    tmp11 = tmp1 + tmp2;
-    tmp12 = tmp1 - tmp2;
-    
-    /* Odd part per figure 8; the matrix is unitary and hence its
-     * transpose is its inverse.  i0..i3 are y7,y5,y3,y1 respectively.
-     */
-    
-    tmp0 = DETQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]);
-    tmp1 = DETQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]);
-    tmp2 = DETQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]);
-    tmp3 = DETQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]);
-    
-    z1 = tmp0 + tmp3;
-    z2 = tmp1 + tmp2;
-    z3 = tmp0 + tmp2;
-    z4 = tmp1 + tmp3;
-    z5 = MULTIPLY(z3 + z4, FIX_1_175875602); /* sqrt(2) * c3 */
-    
-    tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */
-    tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */
-    tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */
-    tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */
-    z1 = MULTIPLY(z1, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */
-    z2 = MULTIPLY(z2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */
-    z3 = MULTIPLY(z3, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */
-    z4 = MULTIPLY(z4, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */
-    
-    z3 += z5;
-    z4 += z5;
-    
-    tmp0 += z1 + z3;
-    tmp1 += z2 + z4;
-    tmp2 += z2 + z3;
-    tmp3 += z1 + z4;
-    
-    /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */
-    
-    wsptr[DCTSIZE*0] = (int) DESCALE(tmp10 + tmp3, CONST_BITS-PASS1_BITS);
-    wsptr[DCTSIZE*7] = (int) DESCALE(tmp10 - tmp3, CONST_BITS-PASS1_BITS);
-    wsptr[DCTSIZE*1] = (int) DESCALE(tmp11 + tmp2, CONST_BITS-PASS1_BITS);
-    wsptr[DCTSIZE*6] = (int) DESCALE(tmp11 - tmp2, CONST_BITS-PASS1_BITS);
-    wsptr[DCTSIZE*2] = (int) DESCALE(tmp12 + tmp1, CONST_BITS-PASS1_BITS);
-    wsptr[DCTSIZE*5] = (int) DESCALE(tmp12 - tmp1, CONST_BITS-PASS1_BITS);
-    wsptr[DCTSIZE*3] = (int) DESCALE(tmp13 + tmp0, CONST_BITS-PASS1_BITS);
-    wsptr[DCTSIZE*4] = (int) DESCALE(tmp13 - tmp0, CONST_BITS-PASS1_BITS);
-    
-    inptr++;			/* advance pointers to next column */
-    quantptr++;
-    wsptr++;
-  }
-  
-  /* Pass 2: process rows from work array, store into output array. */
-  /* Note that we must descale the results by a factor of 8 == 2**3, */
-  /* and also undo the PASS1_BITS scaling. */
-
-  wsptr = workspace;
-  for (ctr = 0; ctr < DCTSIZE; ctr++) {
-    outptr = output_buf[ctr] + output_col;
-    /* Rows of zeroes can be exploited in the same way as we did with columns.
-     * However, the column calculation has created many nonzero AC terms, so
-     * the simplification applies less often (typically 5% to 10% of the time).
-     * On machines with very fast multiplication, it's possible that the
-     * test takes more time than it's worth.  In that case this section
-     * may be commented out.
-     */
-    
-#ifndef NO_ZERO_ROW_TEST
-    if (wsptr[1] == 0 && wsptr[2] == 0 && wsptr[3] == 0 && wsptr[4] == 0 &&
-	wsptr[5] == 0 && wsptr[6] == 0 && wsptr[7] == 0) {
-      /* AC terms all zero */
-      JSAMPLE dcval = range_limit[(int) DESCALE((INT32) wsptr[0], PASS1_BITS+3)
-				  & RANGE_MASK];
-      
-      outptr[0] = dcval;
-      outptr[1] = dcval;
-      outptr[2] = dcval;
-      outptr[3] = dcval;
-      outptr[4] = dcval;
-      outptr[5] = dcval;
-      outptr[6] = dcval;
-      outptr[7] = dcval;
-
-      wsptr += DCTSIZE;		/* advance pointer to next row */
-      continue;
-    }
-#endif
-    
-    /* Even part: reverse the even part of the forward DCT. */
-    /* The rotator is sqrt(2)*c(-6). */
-    
-    z2 = (INT32) wsptr[2];
-    z3 = (INT32) wsptr[6];
-    
-    z1 = MULTIPLY(z2 + z3, FIX_0_541196100);
-    tmp2 = z1 + MULTIPLY(z3, - FIX_1_847759065);
-    tmp3 = z1 + MULTIPLY(z2, FIX_0_765366865);
-    
-    tmp0 = ((INT32) wsptr[0] + (INT32) wsptr[4]) << CONST_BITS;
-    tmp1 = ((INT32) wsptr[0] - (INT32) wsptr[4]) << CONST_BITS;
-    
-    tmp10 = tmp0 + tmp3;
-    tmp13 = tmp0 - tmp3;
-    tmp11 = tmp1 + tmp2;
-    tmp12 = tmp1 - tmp2;
-    
-    /* Odd part per figure 8; the matrix is unitary and hence its
-     * transpose is its inverse.  i0..i3 are y7,y5,y3,y1 respectively.
-     */
-    
-    tmp0 = (INT32) wsptr[7];
-    tmp1 = (INT32) wsptr[5];
-    tmp2 = (INT32) wsptr[3];
-    tmp3 = (INT32) wsptr[1];
-    
-    z1 = tmp0 + tmp3;
-    z2 = tmp1 + tmp2;
-    z3 = tmp0 + tmp2;
-    z4 = tmp1 + tmp3;
-    z5 = MULTIPLY(z3 + z4, FIX_1_175875602); /* sqrt(2) * c3 */
-    
-    tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */
-    tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */
-    tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */
-    tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */
-    z1 = MULTIPLY(z1, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */
-    z2 = MULTIPLY(z2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */
-    z3 = MULTIPLY(z3, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */
-    z4 = MULTIPLY(z4, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */
-    
-    z3 += z5;
-    z4 += z5;
-    
-    tmp0 += z1 + z3;
-    tmp1 += z2 + z4;
-    tmp2 += z2 + z3;
-    tmp3 += z1 + z4;
-    
-    /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */
-    
-    outptr[0] = range_limit[(int) DESCALE(tmp10 + tmp3,
-					  CONST_BITS+PASS1_BITS+3)
-			    & RANGE_MASK];
-    outptr[7] = range_limit[(int) DESCALE(tmp10 - tmp3,
-					  CONST_BITS+PASS1_BITS+3)
-			    & RANGE_MASK];
-    outptr[1] = range_limit[(int) DESCALE(tmp11 + tmp2,
-					  CONST_BITS+PASS1_BITS+3)
-			    & RANGE_MASK];
-    outptr[6] = range_limit[(int) DESCALE(tmp11 - tmp2,
-					  CONST_BITS+PASS1_BITS+3)
-			    & RANGE_MASK];
-    outptr[2] = range_limit[(int) DESCALE(tmp12 + tmp1,
-					  CONST_BITS+PASS1_BITS+3)
-			    & RANGE_MASK];
-    outptr[5] = range_limit[(int) DESCALE(tmp12 - tmp1,
-					  CONST_BITS+PASS1_BITS+3)
-			    & RANGE_MASK];
-    outptr[3] = range_limit[(int) DESCALE(tmp13 + tmp0,
-					  CONST_BITS+PASS1_BITS+3)
-			    & RANGE_MASK];
-    outptr[4] = range_limit[(int) DESCALE(tmp13 - tmp0,
-					  CONST_BITS+PASS1_BITS+3)
-			    & RANGE_MASK];
-    
-    wsptr += DCTSIZE;		/* advance pointer to next row */
-  }
-}
-
-#endif /* DCT_ISLOW_SUPPORTED */
diff --git a/src/3rdparty/libjpeg/jidctred.c b/src/3rdparty/libjpeg/jidctred.c
deleted file mode 100644
index 5816c8779..000000000
--- a/src/3rdparty/libjpeg/jidctred.c
+++ /dev/null
@@ -1,398 +0,0 @@
-/*
- * jidctred.c
- *
- * Copyright (C) 1994-1998, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains inverse-DCT routines that produce reduced-size output:
- * either 4x4, 2x2, or 1x1 pixels from an 8x8 DCT block.
- *
- * The implementation is based on the Loeffler, Ligtenberg and Moschytz (LL&M)
- * algorithm used in jidctint.c.  We simply replace each 8-to-8 1-D IDCT step
- * with an 8-to-4 step that produces the four averages of two adjacent outputs
- * (or an 8-to-2 step producing two averages of four outputs, for 2x2 output).
- * These steps were derived by computing the corresponding values at the end
- * of the normal LL&M code, then simplifying as much as possible.
- *
- * 1x1 is trivial: just take the DC coefficient divided by 8.
- *
- * See jidctint.c for additional comments.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jdct.h"		/* Private declarations for DCT subsystem */
-
-#ifdef IDCT_SCALING_SUPPORTED
-
-
-/*
- * This module is specialized to the case DCTSIZE = 8.
- */
-
-#if DCTSIZE != 8
-  Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */
-#endif
-
-
-/* Scaling is the same as in jidctint.c. */
-
-#if BITS_IN_JSAMPLE == 8
-#define CONST_BITS  13
-#define PASS1_BITS  2
-#else
-#define CONST_BITS  13
-#define PASS1_BITS  1		/* lose a little precision to avoid overflow */
-#endif
-
-/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus
- * causing a lot of useless floating-point operations at run time.
- * To get around this we use the following pre-calculated constants.
- * If you change CONST_BITS you may want to add appropriate values.
- * (With a reasonable C compiler, you can just rely on the FIX() macro...)
- */
-
-#if CONST_BITS == 13
-#define FIX_0_211164243  ((INT32)  1730)	/* FIX(0.211164243) */
-#define FIX_0_509795579  ((INT32)  4176)	/* FIX(0.509795579) */
-#define FIX_0_601344887  ((INT32)  4926)	/* FIX(0.601344887) */
-#define FIX_0_720959822  ((INT32)  5906)	/* FIX(0.720959822) */
-#define FIX_0_765366865  ((INT32)  6270)	/* FIX(0.765366865) */
-#define FIX_0_850430095  ((INT32)  6967)	/* FIX(0.850430095) */
-#define FIX_0_899976223  ((INT32)  7373)	/* FIX(0.899976223) */
-#define FIX_1_061594337  ((INT32)  8697)	/* FIX(1.061594337) */
-#define FIX_1_272758580  ((INT32)  10426)	/* FIX(1.272758580) */
-#define FIX_1_451774981  ((INT32)  11893)	/* FIX(1.451774981) */
-#define FIX_1_847759065  ((INT32)  15137)	/* FIX(1.847759065) */
-#define FIX_2_172734803  ((INT32)  17799)	/* FIX(2.172734803) */
-#define FIX_2_562915447  ((INT32)  20995)	/* FIX(2.562915447) */
-#define FIX_3_624509785  ((INT32)  29692)	/* FIX(3.624509785) */
-#else
-#define FIX_0_211164243  FIX(0.211164243)
-#define FIX_0_509795579  FIX(0.509795579)
-#define FIX_0_601344887  FIX(0.601344887)
-#define FIX_0_720959822  FIX(0.720959822)
-#define FIX_0_765366865  FIX(0.765366865)
-#define FIX_0_850430095  FIX(0.850430095)
-#define FIX_0_899976223  FIX(0.899976223)
-#define FIX_1_061594337  FIX(1.061594337)
-#define FIX_1_272758580  FIX(1.272758580)
-#define FIX_1_451774981  FIX(1.451774981)
-#define FIX_1_847759065  FIX(1.847759065)
-#define FIX_2_172734803  FIX(2.172734803)
-#define FIX_2_562915447  FIX(2.562915447)
-#define FIX_3_624509785  FIX(3.624509785)
-#endif
-
-
-/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result.
- * For 8-bit samples with the recommended scaling, all the variable
- * and constant values involved are no more than 16 bits wide, so a
- * 16x16->32 bit multiply can be used instead of a full 32x32 multiply.
- * For 12-bit samples, a full 32-bit multiplication will be needed.
- */
-
-#if BITS_IN_JSAMPLE == 8
-#define MULTIPLY(var,const)  MULTIPLY16C16(var,const)
-#else
-#define MULTIPLY(var,const)  ((var) * (const))
-#endif
-
-
-/* Dequantize a coefficient by multiplying it by the multiplier-table
- * entry; produce an int result.  In this module, both inputs and result
- * are 16 bits or less, so either int or short multiply will work.
- */
-
-#define DETQUANTIZE(coef,quantval)  (((ISLOW_MULT_TYPE) (coef)) * (quantval))
-
-
-/*
- * Perform dequantization and inverse DCT on one block of coefficients,
- * producing a reduced-size 4x4 output block.
- */
-
-GLOBAL(void)
-jpeg_idct_4x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
-	       JCOEFPTR coef_block,
-	       JSAMPARRAY output_buf, JDIMENSION output_col)
-{
-  INT32 tmp0, tmp2, tmp10, tmp12;
-  INT32 z1, z2, z3, z4;
-  JCOEFPTR inptr;
-  ISLOW_MULT_TYPE * quantptr;
-  int * wsptr;
-  JSAMPROW outptr;
-  JSAMPLE *range_limit = IDCT_range_limit(cinfo);
-  int ctr;
-  int workspace[DCTSIZE*4];	/* buffers data between passes */
-  SHIFT_TEMPS
-
-  /* Pass 1: process columns from input, store into work array. */
-
-  inptr = coef_block;
-  quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
-  wsptr = workspace;
-  for (ctr = DCTSIZE; ctr > 0; inptr++, quantptr++, wsptr++, ctr--) {
-    /* Don't bother to process column 4, because second pass won't use it */
-    if (ctr == DCTSIZE-4)
-      continue;
-    if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*2] == 0 &&
-	inptr[DCTSIZE*3] == 0 && inptr[DCTSIZE*5] == 0 &&
-	inptr[DCTSIZE*6] == 0 && inptr[DCTSIZE*7] == 0) {
-      /* AC terms all zero; we need not examine term 4 for 4x4 output */
-      int dcval = DETQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]) << PASS1_BITS;
-      
-      wsptr[DCTSIZE*0] = dcval;
-      wsptr[DCTSIZE*1] = dcval;
-      wsptr[DCTSIZE*2] = dcval;
-      wsptr[DCTSIZE*3] = dcval;
-      
-      continue;
-    }
-    
-    /* Even part */
-    
-    tmp0 = DETQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]);
-    tmp0 <<= (CONST_BITS+1);
-    
-    z2 = DETQUANTIZE(inptr[DCTSIZE*2], quantptr[DCTSIZE*2]);
-    z3 = DETQUANTIZE(inptr[DCTSIZE*6], quantptr[DCTSIZE*6]);
-
-    tmp2 = MULTIPLY(z2, FIX_1_847759065) + MULTIPLY(z3, - FIX_0_765366865);
-    
-    tmp10 = tmp0 + tmp2;
-    tmp12 = tmp0 - tmp2;
-    
-    /* Odd part */
-    
-    z1 = DETQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]);
-    z2 = DETQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]);
-    z3 = DETQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]);
-    z4 = DETQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]);
-    
-    tmp0 = MULTIPLY(z1, - FIX_0_211164243) /* sqrt(2) * (c3-c1) */
-	 + MULTIPLY(z2, FIX_1_451774981) /* sqrt(2) * (c3+c7) */
-	 + MULTIPLY(z3, - FIX_2_172734803) /* sqrt(2) * (-c1-c5) */
-	 + MULTIPLY(z4, FIX_1_061594337); /* sqrt(2) * (c5+c7) */
-    
-    tmp2 = MULTIPLY(z1, - FIX_0_509795579) /* sqrt(2) * (c7-c5) */
-	 + MULTIPLY(z2, - FIX_0_601344887) /* sqrt(2) * (c5-c1) */
-	 + MULTIPLY(z3, FIX_0_899976223) /* sqrt(2) * (c3-c7) */
-	 + MULTIPLY(z4, FIX_2_562915447); /* sqrt(2) * (c1+c3) */
-
-    /* Final output stage */
-    
-    wsptr[DCTSIZE*0] = (int) DESCALE(tmp10 + tmp2, CONST_BITS-PASS1_BITS+1);
-    wsptr[DCTSIZE*3] = (int) DESCALE(tmp10 - tmp2, CONST_BITS-PASS1_BITS+1);
-    wsptr[DCTSIZE*1] = (int) DESCALE(tmp12 + tmp0, CONST_BITS-PASS1_BITS+1);
-    wsptr[DCTSIZE*2] = (int) DESCALE(tmp12 - tmp0, CONST_BITS-PASS1_BITS+1);
-  }
-  
-  /* Pass 2: process 4 rows from work array, store into output array. */
-
-  wsptr = workspace;
-  for (ctr = 0; ctr < 4; ctr++) {
-    outptr = output_buf[ctr] + output_col;
-    /* It's not clear whether a zero row test is worthwhile here ... */
-
-#ifndef NO_ZERO_ROW_TEST
-    if (wsptr[1] == 0 && wsptr[2] == 0 && wsptr[3] == 0 &&
-	wsptr[5] == 0 && wsptr[6] == 0 && wsptr[7] == 0) {
-      /* AC terms all zero */
-      JSAMPLE dcval = range_limit[(int) DESCALE((INT32) wsptr[0], PASS1_BITS+3)
-				  & RANGE_MASK];
-      
-      outptr[0] = dcval;
-      outptr[1] = dcval;
-      outptr[2] = dcval;
-      outptr[3] = dcval;
-      
-      wsptr += DCTSIZE;		/* advance pointer to next row */
-      continue;
-    }
-#endif
-    
-    /* Even part */
-    
-    tmp0 = ((INT32) wsptr[0]) << (CONST_BITS+1);
-    
-    tmp2 = MULTIPLY((INT32) wsptr[2], FIX_1_847759065)
-	 + MULTIPLY((INT32) wsptr[6], - FIX_0_765366865);
-    
-    tmp10 = tmp0 + tmp2;
-    tmp12 = tmp0 - tmp2;
-    
-    /* Odd part */
-    
-    z1 = (INT32) wsptr[7];
-    z2 = (INT32) wsptr[5];
-    z3 = (INT32) wsptr[3];
-    z4 = (INT32) wsptr[1];
-    
-    tmp0 = MULTIPLY(z1, - FIX_0_211164243) /* sqrt(2) * (c3-c1) */
-	 + MULTIPLY(z2, FIX_1_451774981) /* sqrt(2) * (c3+c7) */
-	 + MULTIPLY(z3, - FIX_2_172734803) /* sqrt(2) * (-c1-c5) */
-	 + MULTIPLY(z4, FIX_1_061594337); /* sqrt(2) * (c5+c7) */
-    
-    tmp2 = MULTIPLY(z1, - FIX_0_509795579) /* sqrt(2) * (c7-c5) */
-	 + MULTIPLY(z2, - FIX_0_601344887) /* sqrt(2) * (c5-c1) */
-	 + MULTIPLY(z3, FIX_0_899976223) /* sqrt(2) * (c3-c7) */
-	 + MULTIPLY(z4, FIX_2_562915447); /* sqrt(2) * (c1+c3) */
-
-    /* Final output stage */
-    
-    outptr[0] = range_limit[(int) DESCALE(tmp10 + tmp2,
-					  CONST_BITS+PASS1_BITS+3+1)
-			    & RANGE_MASK];
-    outptr[3] = range_limit[(int) DESCALE(tmp10 - tmp2,
-					  CONST_BITS+PASS1_BITS+3+1)
-			    & RANGE_MASK];
-    outptr[1] = range_limit[(int) DESCALE(tmp12 + tmp0,
-					  CONST_BITS+PASS1_BITS+3+1)
-			    & RANGE_MASK];
-    outptr[2] = range_limit[(int) DESCALE(tmp12 - tmp0,
-					  CONST_BITS+PASS1_BITS+3+1)
-			    & RANGE_MASK];
-    
-    wsptr += DCTSIZE;		/* advance pointer to next row */
-  }
-}
-
-
-/*
- * Perform dequantization and inverse DCT on one block of coefficients,
- * producing a reduced-size 2x2 output block.
- */
-
-GLOBAL(void)
-jpeg_idct_2x2 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
-	       JCOEFPTR coef_block,
-	       JSAMPARRAY output_buf, JDIMENSION output_col)
-{
-  INT32 tmp0, tmp10, z1;
-  JCOEFPTR inptr;
-  ISLOW_MULT_TYPE * quantptr;
-  int * wsptr;
-  JSAMPROW outptr;
-  JSAMPLE *range_limit = IDCT_range_limit(cinfo);
-  int ctr;
-  int workspace[DCTSIZE*2];	/* buffers data between passes */
-  SHIFT_TEMPS
-
-  /* Pass 1: process columns from input, store into work array. */
-
-  inptr = coef_block;
-  quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
-  wsptr = workspace;
-  for (ctr = DCTSIZE; ctr > 0; inptr++, quantptr++, wsptr++, ctr--) {
-    /* Don't bother to process columns 2,4,6 */
-    if (ctr == DCTSIZE-2 || ctr == DCTSIZE-4 || ctr == DCTSIZE-6)
-      continue;
-    if (inptr[DCTSIZE*1] == 0 && inptr[DCTSIZE*3] == 0 &&
-	inptr[DCTSIZE*5] == 0 && inptr[DCTSIZE*7] == 0) {
-      /* AC terms all zero; we need not examine terms 2,4,6 for 2x2 output */
-      int dcval = DETQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]) << PASS1_BITS;
-      
-      wsptr[DCTSIZE*0] = dcval;
-      wsptr[DCTSIZE*1] = dcval;
-      
-      continue;
-    }
-    
-    /* Even part */
-    
-    z1 = DETQUANTIZE(inptr[DCTSIZE*0], quantptr[DCTSIZE*0]);
-    tmp10 = z1 << (CONST_BITS+2);
-    
-    /* Odd part */
-
-    z1 = DETQUANTIZE(inptr[DCTSIZE*7], quantptr[DCTSIZE*7]);
-    tmp0 = MULTIPLY(z1, - FIX_0_720959822); /* sqrt(2) * (c7-c5+c3-c1) */
-    z1 = DETQUANTIZE(inptr[DCTSIZE*5], quantptr[DCTSIZE*5]);
-    tmp0 += MULTIPLY(z1, FIX_0_850430095); /* sqrt(2) * (-c1+c3+c5+c7) */
-    z1 = DETQUANTIZE(inptr[DCTSIZE*3], quantptr[DCTSIZE*3]);
-    tmp0 += MULTIPLY(z1, - FIX_1_272758580); /* sqrt(2) * (-c1+c3-c5-c7) */
-    z1 = DETQUANTIZE(inptr[DCTSIZE*1], quantptr[DCTSIZE*1]);
-    tmp0 += MULTIPLY(z1, FIX_3_624509785); /* sqrt(2) * (c1+c3+c5+c7) */
-
-    /* Final output stage */
-    
-    wsptr[DCTSIZE*0] = (int) DESCALE(tmp10 + tmp0, CONST_BITS-PASS1_BITS+2);
-    wsptr[DCTSIZE*1] = (int) DESCALE(tmp10 - tmp0, CONST_BITS-PASS1_BITS+2);
-  }
-  
-  /* Pass 2: process 2 rows from work array, store into output array. */
-
-  wsptr = workspace;
-  for (ctr = 0; ctr < 2; ctr++) {
-    outptr = output_buf[ctr] + output_col;
-    /* It's not clear whether a zero row test is worthwhile here ... */
-
-#ifndef NO_ZERO_ROW_TEST
-    if (wsptr[1] == 0 && wsptr[3] == 0 && wsptr[5] == 0 && wsptr[7] == 0) {
-      /* AC terms all zero */
-      JSAMPLE dcval = range_limit[(int) DESCALE((INT32) wsptr[0], PASS1_BITS+3)
-				  & RANGE_MASK];
-      
-      outptr[0] = dcval;
-      outptr[1] = dcval;
-      
-      wsptr += DCTSIZE;		/* advance pointer to next row */
-      continue;
-    }
-#endif
-    
-    /* Even part */
-    
-    tmp10 = ((INT32) wsptr[0]) << (CONST_BITS+2);
-    
-    /* Odd part */
-
-    tmp0 = MULTIPLY((INT32) wsptr[7], - FIX_0_720959822) /* sqrt(2) * (c7-c5+c3-c1) */
-	 + MULTIPLY((INT32) wsptr[5], FIX_0_850430095) /* sqrt(2) * (-c1+c3+c5+c7) */
-	 + MULTIPLY((INT32) wsptr[3], - FIX_1_272758580) /* sqrt(2) * (-c1+c3-c5-c7) */
-	 + MULTIPLY((INT32) wsptr[1], FIX_3_624509785); /* sqrt(2) * (c1+c3+c5+c7) */
-
-    /* Final output stage */
-    
-    outptr[0] = range_limit[(int) DESCALE(tmp10 + tmp0,
-					  CONST_BITS+PASS1_BITS+3+2)
-			    & RANGE_MASK];
-    outptr[1] = range_limit[(int) DESCALE(tmp10 - tmp0,
-					  CONST_BITS+PASS1_BITS+3+2)
-			    & RANGE_MASK];
-    
-    wsptr += DCTSIZE;		/* advance pointer to next row */
-  }
-}
-
-
-/*
- * Perform dequantization and inverse DCT on one block of coefficients,
- * producing a reduced-size 1x1 output block.
- */
-
-GLOBAL(void)
-jpeg_idct_1x1 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
-	       JCOEFPTR coef_block,
-	       JSAMPARRAY output_buf, JDIMENSION output_col)
-{
-  int dcval;
-  ISLOW_MULT_TYPE * quantptr;
-  JSAMPLE *range_limit = IDCT_range_limit(cinfo);
-  SHIFT_TEMPS
-
-  /* We hardly need an inverse DCT routine for this: just take the
-   * average pixel value, which is one-eighth of the DC coefficient.
-   */
-  quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;
-  dcval = DETQUANTIZE(coef_block[0], quantptr[0]);
-  dcval = (int) DESCALE((INT32) dcval, 3);
-
-  output_buf[0][output_col] = range_limit[dcval & RANGE_MASK];
-}
-
-#endif /* IDCT_SCALING_SUPPORTED */
diff --git a/src/3rdparty/libjpeg/jinclude.h b/src/3rdparty/libjpeg/jinclude.h
deleted file mode 100644
index 0a4f15146..000000000
--- a/src/3rdparty/libjpeg/jinclude.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * jinclude.h
- *
- * Copyright (C) 1991-1994, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file exists to provide a single place to fix any problems with
- * including the wrong system include files.  (Common problems are taken
- * care of by the standard jconfig symbols, but on really weird systems
- * you may have to edit this file.)
- *
- * NOTE: this file is NOT intended to be included by applications using the
- * JPEG library.  Most applications need only include jpeglib.h.
- */
-
-
-/* Include auto-config file to find out which system include files we need. */
-
-#include "jconfig.h"		/* auto configuration options */
-#define JCONFIG_INCLUDED	/* so that jpeglib.h doesn't do it again */
-
-/*
- * We need the NULL macro and size_t typedef.
- * On an ANSI-conforming system it is sufficient to include <stddef.h>.
- * Otherwise, we get them from <stdlib.h> or <stdio.h>; we may have to
- * pull in <sys/types.h> as well.
- * Note that the core JPEG library does not require <stdio.h>;
- * only the default error handler and data source/destination modules do.
- * But we must pull it in because of the references to FILE in jpeglib.h.
- * You can remove those references if you want to compile without <stdio.h>.
- */
-
-#ifdef HAVE_STDDEF_H
-#include <stddef.h>
-#endif
-
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-
-#ifdef NEED_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-
-#include <stdio.h>
-
-/*
- * We need memory copying and zeroing functions, plus strncpy().
- * ANSI and System V implementations declare these in <string.h>.
- * BSD doesn't have the mem() functions, but it does have bcopy()/bzero().
- * Some systems may declare memset and memcpy in <memory.h>.
- *
- * NOTE: we assume the size parameters to these functions are of type size_t.
- * Change the casts in these macros if not!
- */
-
-#ifdef NEED_BSD_STRINGS
-
-#include <strings.h>
-#define MEMZERO(target,size)	bzero((void *)(target), (size_t)(size))
-#define MEMCOPY(dest,src,size)	bcopy((const void *)(src), (void *)(dest), (size_t)(size))
-
-#else /* not BSD, assume ANSI/SysV string lib */
-
-#include <string.h>
-#define MEMZERO(target,size)	memset((void *)(target), 0, (size_t)(size))
-#define MEMCOPY(dest,src,size)	memcpy((void *)(dest), (const void *)(src), (size_t)(size))
-
-#endif
-
-/*
- * In ANSI C, and indeed any rational implementation, size_t is also the
- * type returned by sizeof().  However, it seems there are some irrational
- * implementations out there, in which sizeof() returns an int even though
- * size_t is defined as long or unsigned long.  To ensure consistent results
- * we always use this SIZEOF() macro in place of using sizeof() directly.
- */
-
-#define SIZEOF(object)	((size_t) sizeof(object))
-
-/*
- * The modules that use fread() and fwrite() always invoke them through
- * these macros.  On some systems you may need to twiddle the argument casts.
- * CAUTION: argument order is different from underlying functions!
- */
-
-#define JFREAD(file,buf,sizeofbuf)  \
-  ((size_t) fread((void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file)))
-#define JFWRITE(file,buf,sizeofbuf)  \
-  ((size_t) fwrite((const void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file)))
diff --git a/src/3rdparty/libjpeg/jmemmgr.c b/src/3rdparty/libjpeg/jmemmgr.c
deleted file mode 100644
index d801b322d..000000000
--- a/src/3rdparty/libjpeg/jmemmgr.c
+++ /dev/null
@@ -1,1118 +0,0 @@
-/*
- * jmemmgr.c
- *
- * Copyright (C) 1991-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains the JPEG system-independent memory management
- * routines.  This code is usable across a wide variety of machines; most
- * of the system dependencies have been isolated in a separate file.
- * The major functions provided here are:
- *   * pool-based allocation and freeing of memory;
- *   * policy decisions about how to divide available memory among the
- *     virtual arrays;
- *   * control logic for swapping virtual arrays between main memory and
- *     backing storage.
- * The separate system-dependent file provides the actual backing-storage
- * access code, and it contains the policy decision about how much total
- * main memory to use.
- * This file is system-dependent in the sense that some of its functions
- * are unnecessary in some systems.  For example, if there is enough virtual
- * memory so that backing storage will never be used, much of the virtual
- * array control logic could be removed.  (Of course, if you have that much
- * memory then you shouldn't care about a little bit of unused code...)
- */
-
-#define JPEG_INTERNALS
-#define AM_MEMORY_MANAGER	/* we define jvirt_Xarray_control structs */
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jmemsys.h"		/* import the system-dependent declarations */
-
-#ifndef NO_GETENV
-#ifndef HAVE_STDLIB_H		/* <stdlib.h> should declare getenv() */
-extern char * getenv JPP((const char * name));
-#endif
-#endif
-
-
-/*
- * Some important notes:
- *   The allocation routines provided here must never return NULL.
- *   They should exit to error_exit if unsuccessful.
- *
- *   It's not a good idea to try to merge the sarray and barray routines,
- *   even though they are textually almost the same, because samples are
- *   usually stored as bytes while coefficients are shorts or ints.  Thus,
- *   in machines where byte pointers have a different representation from
- *   word pointers, the resulting machine code could not be the same.
- */
-
-
-/*
- * Many machines require storage alignment: longs must start on 4-byte
- * boundaries, doubles on 8-byte boundaries, etc.  On such machines, malloc()
- * always returns pointers that are multiples of the worst-case alignment
- * requirement, and we had better do so too.
- * There isn't any really portable way to determine the worst-case alignment
- * requirement.  This module assumes that the alignment requirement is
- * multiples of sizeof(ALIGN_TYPE).
- * By default, we define ALIGN_TYPE as double.  This is necessary on some
- * workstations (where doubles really do need 8-byte alignment) and will work
- * fine on nearly everything.  If your machine has lesser alignment needs,
- * you can save a few bytes by making ALIGN_TYPE smaller.
- * The only place I know of where this will NOT work is certain Macintosh
- * 680x0 compilers that define double as a 10-byte IEEE extended float.
- * Doing 10-byte alignment is counterproductive because longwords won't be
- * aligned well.  Put "#define ALIGN_TYPE long" in jconfig.h if you have
- * such a compiler.
- */
-
-#ifndef ALIGN_TYPE		/* so can override from jconfig.h */
-#define ALIGN_TYPE  double
-#endif
-
-
-/*
- * We allocate objects from "pools", where each pool is gotten with a single
- * request to jpeg_get_small() or jpeg_get_large().  There is no per-object
- * overhead within a pool, except for alignment padding.  Each pool has a
- * header with a link to the next pool of the same class.
- * Small and large pool headers are identical except that the latter's
- * link pointer must be FAR on 80x86 machines.
- * Notice that the "real" header fields are union'ed with a dummy ALIGN_TYPE
- * field.  This forces the compiler to make SIZEOF(small_pool_hdr) a multiple
- * of the alignment requirement of ALIGN_TYPE.
- */
-
-typedef union small_pool_struct * small_pool_ptr;
-
-typedef union small_pool_struct {
-  struct {
-    small_pool_ptr next;	/* next in list of pools */
-    size_t bytes_used;		/* how many bytes already used within pool */
-    size_t bytes_left;		/* bytes still available in this pool */
-  } hdr;
-  ALIGN_TYPE dummy;		/* included in union to ensure alignment */
-} small_pool_hdr;
-
-typedef union large_pool_struct FAR * large_pool_ptr;
-
-typedef union large_pool_struct {
-  struct {
-    large_pool_ptr next;	/* next in list of pools */
-    size_t bytes_used;		/* how many bytes already used within pool */
-    size_t bytes_left;		/* bytes still available in this pool */
-  } hdr;
-  ALIGN_TYPE dummy;		/* included in union to ensure alignment */
-} large_pool_hdr;
-
-
-/*
- * Here is the full definition of a memory manager object.
- */
-
-typedef struct {
-  struct jpeg_memory_mgr pub;	/* public fields */
-
-  /* Each pool identifier (lifetime class) names a linked list of pools. */
-  small_pool_ptr small_list[JPOOL_NUMPOOLS];
-  large_pool_ptr large_list[JPOOL_NUMPOOLS];
-
-  /* Since we only have one lifetime class of virtual arrays, only one
-   * linked list is necessary (for each datatype).  Note that the virtual
-   * array control blocks being linked together are actually stored somewhere
-   * in the small-pool list.
-   */
-  jvirt_sarray_ptr virt_sarray_list;
-  jvirt_barray_ptr virt_barray_list;
-
-  /* This counts total space obtained from jpeg_get_small/large */
-  long total_space_allocated;
-
-  /* alloc_sarray and alloc_barray set this value for use by virtual
-   * array routines.
-   */
-  JDIMENSION last_rowsperchunk;	/* from most recent alloc_sarray/barray */
-} my_memory_mgr;
-
-typedef my_memory_mgr * my_mem_ptr;
-
-
-/*
- * The control blocks for virtual arrays.
- * Note that these blocks are allocated in the "small" pool area.
- * System-dependent info for the associated backing store (if any) is hidden
- * inside the backing_store_info struct.
- */
-
-struct jvirt_sarray_control {
-  JSAMPARRAY mem_buffer;	/* => the in-memory buffer */
-  JDIMENSION rows_in_array;	/* total virtual array height */
-  JDIMENSION samplesperrow;	/* width of array (and of memory buffer) */
-  JDIMENSION maxaccess;		/* max rows accessed by access_virt_sarray */
-  JDIMENSION rows_in_mem;	/* height of memory buffer */
-  JDIMENSION rowsperchunk;	/* allocation chunk size in mem_buffer */
-  JDIMENSION cur_start_row;	/* first logical row # in the buffer */
-  JDIMENSION first_undef_row;	/* row # of first uninitialized row */
-  boolean pre_zero;		/* pre-zero mode requested? */
-  boolean dirty;		/* do current buffer contents need written? */
-  boolean b_s_open;		/* is backing-store data valid? */
-  jvirt_sarray_ptr next;	/* link to next virtual sarray control block */
-  backing_store_info b_s_info;	/* System-dependent control info */
-};
-
-struct jvirt_barray_control {
-  JBLOCKARRAY mem_buffer;	/* => the in-memory buffer */
-  JDIMENSION rows_in_array;	/* total virtual array height */
-  JDIMENSION blocksperrow;	/* width of array (and of memory buffer) */
-  JDIMENSION maxaccess;		/* max rows accessed by access_virt_barray */
-  JDIMENSION rows_in_mem;	/* height of memory buffer */
-  JDIMENSION rowsperchunk;	/* allocation chunk size in mem_buffer */
-  JDIMENSION cur_start_row;	/* first logical row # in the buffer */
-  JDIMENSION first_undef_row;	/* row # of first uninitialized row */
-  boolean pre_zero;		/* pre-zero mode requested? */
-  boolean dirty;		/* do current buffer contents need written? */
-  boolean b_s_open;		/* is backing-store data valid? */
-  jvirt_barray_ptr next;	/* link to next virtual barray control block */
-  backing_store_info b_s_info;	/* System-dependent control info */
-};
-
-
-#ifdef MEM_STATS		/* optional extra stuff for statistics */
-
-LOCAL(void)
-print_mem_stats (j_common_ptr cinfo, int pool_id)
-{
-  my_mem_ptr mem = (my_mem_ptr) cinfo->mem;
-  small_pool_ptr shdr_ptr;
-  large_pool_ptr lhdr_ptr;
-
-  /* Since this is only a debugging stub, we can cheat a little by using
-   * fprintf directly rather than going through the trace message code.
-   * This is helpful because message parm array can't handle longs.
-   */
-  fprintf(stderr, "Freeing pool %d, total space = %ld\n",
-	  pool_id, mem->total_space_allocated);
-
-  for (lhdr_ptr = mem->large_list[pool_id]; lhdr_ptr != NULL;
-       lhdr_ptr = lhdr_ptr->hdr.next) {
-    fprintf(stderr, "  Large chunk used %ld\n",
-	    (long) lhdr_ptr->hdr.bytes_used);
-  }
-
-  for (shdr_ptr = mem->small_list[pool_id]; shdr_ptr != NULL;
-       shdr_ptr = shdr_ptr->hdr.next) {
-    fprintf(stderr, "  Small chunk used %ld free %ld\n",
-	    (long) shdr_ptr->hdr.bytes_used,
-	    (long) shdr_ptr->hdr.bytes_left);
-  }
-}
-
-#endif /* MEM_STATS */
-
-
-LOCAL(void)
-out_of_memory (j_common_ptr cinfo, int which)
-/* Report an out-of-memory error and stop execution */
-/* If we compiled MEM_STATS support, report alloc requests before dying */
-{
-#ifdef MEM_STATS
-  cinfo->err->trace_level = 2;	/* force self_destruct to report stats */
-#endif
-  ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, which);
-}
-
-
-/*
- * Allocation of "small" objects.
- *
- * For these, we use pooled storage.  When a new pool must be created,
- * we try to get enough space for the current request plus a "slop" factor,
- * where the slop will be the amount of leftover space in the new pool.
- * The speed vs. space tradeoff is largely determined by the slop values.
- * A different slop value is provided for each pool class (lifetime),
- * and we also distinguish the first pool of a class from later ones.
- * NOTE: the values given work fairly well on both 16- and 32-bit-int
- * machines, but may be too small if longs are 64 bits or more.
- */
-
-static const size_t first_pool_slop[JPOOL_NUMPOOLS] = 
-{
-	1600,			/* first PERMANENT pool */
-	16000			/* first IMAGE pool */
-};
-
-static const size_t extra_pool_slop[JPOOL_NUMPOOLS] = 
-{
-	0,			/* additional PERMANENT pools */
-	5000			/* additional IMAGE pools */
-};
-
-#define MIN_SLOP  50		/* greater than 0 to avoid futile looping */
-
-
-METHODDEF(void *)
-alloc_small (j_common_ptr cinfo, int pool_id, size_t sizeofobject)
-/* Allocate a "small" object */
-{
-  my_mem_ptr mem = (my_mem_ptr) cinfo->mem;
-  small_pool_ptr hdr_ptr, prev_hdr_ptr;
-  char * data_ptr;
-  size_t odd_bytes, min_request, slop;
-
-  /* Check for unsatisfiable request (do now to ensure no overflow below) */
-  if (sizeofobject > (size_t) (MAX_ALLOC_CHUNK-SIZEOF(small_pool_hdr)))
-    out_of_memory(cinfo, 1);	/* request exceeds malloc's ability */
-
-  /* Round up the requested size to a multiple of SIZEOF(ALIGN_TYPE) */
-  odd_bytes = sizeofobject % SIZEOF(ALIGN_TYPE);
-  if (odd_bytes > 0)
-    sizeofobject += SIZEOF(ALIGN_TYPE) - odd_bytes;
-
-  /* See if space is available in any existing pool */
-  if (pool_id < 0 || pool_id >= JPOOL_NUMPOOLS)
-    ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id);	/* safety check */
-  prev_hdr_ptr = NULL;
-  hdr_ptr = mem->small_list[pool_id];
-  while (hdr_ptr != NULL) {
-    if (hdr_ptr->hdr.bytes_left >= sizeofobject)
-      break;			/* found pool with enough space */
-    prev_hdr_ptr = hdr_ptr;
-    hdr_ptr = hdr_ptr->hdr.next;
-  }
-
-  /* Time to make a new pool? */
-  if (hdr_ptr == NULL) {
-    /* min_request is what we need now, slop is what will be leftover */
-    min_request = sizeofobject + SIZEOF(small_pool_hdr);
-    if (prev_hdr_ptr == NULL)	/* first pool in class? */
-      slop = first_pool_slop[pool_id];
-    else
-      slop = extra_pool_slop[pool_id];
-    /* Don't ask for more than MAX_ALLOC_CHUNK */
-    if (slop > (size_t) (MAX_ALLOC_CHUNK-min_request))
-      slop = (size_t) (MAX_ALLOC_CHUNK-min_request);
-    /* Try to get space, if fail reduce slop and try again */
-    for (;;) {
-      hdr_ptr = (small_pool_ptr) jpeg_get_small(cinfo, min_request + slop);
-      if (hdr_ptr != NULL)
-	break;
-      slop /= 2;
-      if (slop < MIN_SLOP)	/* give up when it gets real small */
-	out_of_memory(cinfo, 2); /* jpeg_get_small failed */
-    }
-    mem->total_space_allocated += min_request + slop;
-    /* Success, initialize the new pool header and add to end of list */
-    hdr_ptr->hdr.next = NULL;
-    hdr_ptr->hdr.bytes_used = 0;
-    hdr_ptr->hdr.bytes_left = sizeofobject + slop;
-    if (prev_hdr_ptr == NULL)	/* first pool in class? */
-      mem->small_list[pool_id] = hdr_ptr;
-    else
-      prev_hdr_ptr->hdr.next = hdr_ptr;
-  }
-
-  /* OK, allocate the object from the current pool */
-  data_ptr = (char *) (hdr_ptr + 1); /* point to first data byte in pool */
-  data_ptr += hdr_ptr->hdr.bytes_used; /* point to place for object */
-  hdr_ptr->hdr.bytes_used += sizeofobject;
-  hdr_ptr->hdr.bytes_left -= sizeofobject;
-
-  return (void *) data_ptr;
-}
-
-
-/*
- * Allocation of "large" objects.
- *
- * The external semantics of these are the same as "small" objects,
- * except that FAR pointers are used on 80x86.  However the pool
- * management heuristics are quite different.  We assume that each
- * request is large enough that it may as well be passed directly to
- * jpeg_get_large; the pool management just links everything together
- * so that we can free it all on demand.
- * Note: the major use of "large" objects is in JSAMPARRAY and JBLOCKARRAY
- * structures.  The routines that create these structures (see below)
- * deliberately bunch rows together to ensure a large request size.
- */
-
-METHODDEF(void FAR *)
-alloc_large (j_common_ptr cinfo, int pool_id, size_t sizeofobject)
-/* Allocate a "large" object */
-{
-  my_mem_ptr mem = (my_mem_ptr) cinfo->mem;
-  large_pool_ptr hdr_ptr;
-  size_t odd_bytes;
-
-  /* Check for unsatisfiable request (do now to ensure no overflow below) */
-  if (sizeofobject > (size_t) (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr)))
-    out_of_memory(cinfo, 3);	/* request exceeds malloc's ability */
-
-  /* Round up the requested size to a multiple of SIZEOF(ALIGN_TYPE) */
-  odd_bytes = sizeofobject % SIZEOF(ALIGN_TYPE);
-  if (odd_bytes > 0)
-    sizeofobject += SIZEOF(ALIGN_TYPE) - odd_bytes;
-
-  /* Always make a new pool */
-  if (pool_id < 0 || pool_id >= JPOOL_NUMPOOLS)
-    ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id);	/* safety check */
-
-  hdr_ptr = (large_pool_ptr) jpeg_get_large(cinfo, sizeofobject +
-					    SIZEOF(large_pool_hdr));
-  if (hdr_ptr == NULL)
-    out_of_memory(cinfo, 4);	/* jpeg_get_large failed */
-  mem->total_space_allocated += sizeofobject + SIZEOF(large_pool_hdr);
-
-  /* Success, initialize the new pool header and add to list */
-  hdr_ptr->hdr.next = mem->large_list[pool_id];
-  /* We maintain space counts in each pool header for statistical purposes,
-   * even though they are not needed for allocation.
-   */
-  hdr_ptr->hdr.bytes_used = sizeofobject;
-  hdr_ptr->hdr.bytes_left = 0;
-  mem->large_list[pool_id] = hdr_ptr;
-
-  return (void FAR *) (hdr_ptr + 1); /* point to first data byte in pool */
-}
-
-
-/*
- * Creation of 2-D sample arrays.
- * The pointers are in near heap, the samples themselves in FAR heap.
- *
- * To minimize allocation overhead and to allow I/O of large contiguous
- * blocks, we allocate the sample rows in groups of as many rows as possible
- * without exceeding MAX_ALLOC_CHUNK total bytes per allocation request.
- * NB: the virtual array control routines, later in this file, know about
- * this chunking of rows.  The rowsperchunk value is left in the mem manager
- * object so that it can be saved away if this sarray is the workspace for
- * a virtual array.
- */
-
-METHODDEF(JSAMPARRAY)
-alloc_sarray (j_common_ptr cinfo, int pool_id,
-	      JDIMENSION samplesperrow, JDIMENSION numrows)
-/* Allocate a 2-D sample array */
-{
-  my_mem_ptr mem = (my_mem_ptr) cinfo->mem;
-  JSAMPARRAY result;
-  JSAMPROW workspace;
-  JDIMENSION rowsperchunk, currow, i;
-  long ltemp;
-
-  /* Calculate max # of rows allowed in one allocation chunk */
-  ltemp = (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr)) /
-	  ((long) samplesperrow * SIZEOF(JSAMPLE));
-  if (ltemp <= 0)
-    ERREXIT(cinfo, JERR_WIDTH_OVERFLOW);
-  if (ltemp < (long) numrows)
-    rowsperchunk = (JDIMENSION) ltemp;
-  else
-    rowsperchunk = numrows;
-  mem->last_rowsperchunk = rowsperchunk;
-
-  /* Get space for row pointers (small object) */
-  result = (JSAMPARRAY) alloc_small(cinfo, pool_id,
-				    (size_t) (numrows * SIZEOF(JSAMPROW)));
-
-  /* Get the rows themselves (large objects) */
-  currow = 0;
-  while (currow < numrows) {
-    rowsperchunk = MIN(rowsperchunk, numrows - currow);
-    workspace = (JSAMPROW) alloc_large(cinfo, pool_id,
-	(size_t) ((size_t) rowsperchunk * (size_t) samplesperrow
-		  * SIZEOF(JSAMPLE)));
-    for (i = rowsperchunk; i > 0; i--) {
-      result[currow++] = workspace;
-      workspace += samplesperrow;
-    }
-  }
-
-  return result;
-}
-
-
-/*
- * Creation of 2-D coefficient-block arrays.
- * This is essentially the same as the code for sample arrays, above.
- */
-
-METHODDEF(JBLOCKARRAY)
-alloc_barray (j_common_ptr cinfo, int pool_id,
-	      JDIMENSION blocksperrow, JDIMENSION numrows)
-/* Allocate a 2-D coefficient-block array */
-{
-  my_mem_ptr mem = (my_mem_ptr) cinfo->mem;
-  JBLOCKARRAY result;
-  JBLOCKROW workspace;
-  JDIMENSION rowsperchunk, currow, i;
-  long ltemp;
-
-  /* Calculate max # of rows allowed in one allocation chunk */
-  ltemp = (MAX_ALLOC_CHUNK-SIZEOF(large_pool_hdr)) /
-	  ((long) blocksperrow * SIZEOF(JBLOCK));
-  if (ltemp <= 0)
-    ERREXIT(cinfo, JERR_WIDTH_OVERFLOW);
-  if (ltemp < (long) numrows)
-    rowsperchunk = (JDIMENSION) ltemp;
-  else
-    rowsperchunk = numrows;
-  mem->last_rowsperchunk = rowsperchunk;
-
-  /* Get space for row pointers (small object) */
-  result = (JBLOCKARRAY) alloc_small(cinfo, pool_id,
-				     (size_t) (numrows * SIZEOF(JBLOCKROW)));
-
-  /* Get the rows themselves (large objects) */
-  currow = 0;
-  while (currow < numrows) {
-    rowsperchunk = MIN(rowsperchunk, numrows - currow);
-    workspace = (JBLOCKROW) alloc_large(cinfo, pool_id,
-	(size_t) ((size_t) rowsperchunk * (size_t) blocksperrow
-		  * SIZEOF(JBLOCK)));
-    for (i = rowsperchunk; i > 0; i--) {
-      result[currow++] = workspace;
-      workspace += blocksperrow;
-    }
-  }
-
-  return result;
-}
-
-
-/*
- * About virtual array management:
- *
- * The above "normal" array routines are only used to allocate strip buffers
- * (as wide as the image, but just a few rows high).  Full-image-sized buffers
- * are handled as "virtual" arrays.  The array is still accessed a strip at a
- * time, but the memory manager must save the whole array for repeated
- * accesses.  The intended implementation is that there is a strip buffer in
- * memory (as high as is possible given the desired memory limit), plus a
- * backing file that holds the rest of the array.
- *
- * The request_virt_array routines are told the total size of the image and
- * the maximum number of rows that will be accessed at once.  The in-memory
- * buffer must be at least as large as the maxaccess value.
- *
- * The request routines create control blocks but not the in-memory buffers.
- * That is postponed until realize_virt_arrays is called.  At that time the
- * total amount of space needed is known (approximately, anyway), so free
- * memory can be divided up fairly.
- *
- * The access_virt_array routines are responsible for making a specific strip
- * area accessible (after reading or writing the backing file, if necessary).
- * Note that the access routines are told whether the caller intends to modify
- * the accessed strip; during a read-only pass this saves having to rewrite
- * data to disk.  The access routines are also responsible for pre-zeroing
- * any newly accessed rows, if pre-zeroing was requested.
- *
- * In current usage, the access requests are usually for nonoverlapping
- * strips; that is, successive access start_row numbers differ by exactly
- * num_rows = maxaccess.  This means we can get good performance with simple
- * buffer dump/reload logic, by making the in-memory buffer be a multiple
- * of the access height; then there will never be accesses across bufferload
- * boundaries.  The code will still work with overlapping access requests,
- * but it doesn't handle bufferload overlaps very efficiently.
- */
-
-
-METHODDEF(jvirt_sarray_ptr)
-request_virt_sarray (j_common_ptr cinfo, int pool_id, boolean pre_zero,
-		     JDIMENSION samplesperrow, JDIMENSION numrows,
-		     JDIMENSION maxaccess)
-/* Request a virtual 2-D sample array */
-{
-  my_mem_ptr mem = (my_mem_ptr) cinfo->mem;
-  jvirt_sarray_ptr result;
-
-  /* Only IMAGE-lifetime virtual arrays are currently supported */
-  if (pool_id != JPOOL_IMAGE)
-    ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id);	/* safety check */
-
-  /* get control block */
-  result = (jvirt_sarray_ptr) alloc_small(cinfo, pool_id,
-					  SIZEOF(struct jvirt_sarray_control));
-
-  result->mem_buffer = NULL;	/* marks array not yet realized */
-  result->rows_in_array = numrows;
-  result->samplesperrow = samplesperrow;
-  result->maxaccess = maxaccess;
-  result->pre_zero = pre_zero;
-  result->b_s_open = FALSE;	/* no associated backing-store object */
-  result->next = mem->virt_sarray_list; /* add to list of virtual arrays */
-  mem->virt_sarray_list = result;
-
-  return result;
-}
-
-
-METHODDEF(jvirt_barray_ptr)
-request_virt_barray (j_common_ptr cinfo, int pool_id, boolean pre_zero,
-		     JDIMENSION blocksperrow, JDIMENSION numrows,
-		     JDIMENSION maxaccess)
-/* Request a virtual 2-D coefficient-block array */
-{
-  my_mem_ptr mem = (my_mem_ptr) cinfo->mem;
-  jvirt_barray_ptr result;
-
-  /* Only IMAGE-lifetime virtual arrays are currently supported */
-  if (pool_id != JPOOL_IMAGE)
-    ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id);	/* safety check */
-
-  /* get control block */
-  result = (jvirt_barray_ptr) alloc_small(cinfo, pool_id,
-					  SIZEOF(struct jvirt_barray_control));
-
-  result->mem_buffer = NULL;	/* marks array not yet realized */
-  result->rows_in_array = numrows;
-  result->blocksperrow = blocksperrow;
-  result->maxaccess = maxaccess;
-  result->pre_zero = pre_zero;
-  result->b_s_open = FALSE;	/* no associated backing-store object */
-  result->next = mem->virt_barray_list; /* add to list of virtual arrays */
-  mem->virt_barray_list = result;
-
-  return result;
-}
-
-
-METHODDEF(void)
-realize_virt_arrays (j_common_ptr cinfo)
-/* Allocate the in-memory buffers for any unrealized virtual arrays */
-{
-  my_mem_ptr mem = (my_mem_ptr) cinfo->mem;
-  long space_per_minheight, maximum_space, avail_mem;
-  long minheights, max_minheights;
-  jvirt_sarray_ptr sptr;
-  jvirt_barray_ptr bptr;
-
-  /* Compute the minimum space needed (maxaccess rows in each buffer)
-   * and the maximum space needed (full image height in each buffer).
-   * These may be of use to the system-dependent jpeg_mem_available routine.
-   */
-  space_per_minheight = 0;
-  maximum_space = 0;
-  for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) {
-    if (sptr->mem_buffer == NULL) { /* if not realized yet */
-      space_per_minheight += (long) sptr->maxaccess *
-			     (long) sptr->samplesperrow * SIZEOF(JSAMPLE);
-      maximum_space += (long) sptr->rows_in_array *
-		       (long) sptr->samplesperrow * SIZEOF(JSAMPLE);
-    }
-  }
-  for (bptr = mem->virt_barray_list; bptr != NULL; bptr = bptr->next) {
-    if (bptr->mem_buffer == NULL) { /* if not realized yet */
-      space_per_minheight += (long) bptr->maxaccess *
-			     (long) bptr->blocksperrow * SIZEOF(JBLOCK);
-      maximum_space += (long) bptr->rows_in_array *
-		       (long) bptr->blocksperrow * SIZEOF(JBLOCK);
-    }
-  }
-
-  if (space_per_minheight <= 0)
-    return;			/* no unrealized arrays, no work */
-
-  /* Determine amount of memory to actually use; this is system-dependent. */
-  avail_mem = jpeg_mem_available(cinfo, space_per_minheight, maximum_space,
-				 mem->total_space_allocated);
-
-  /* If the maximum space needed is available, make all the buffers full
-   * height; otherwise parcel it out with the same number of minheights
-   * in each buffer.
-   */
-  if (avail_mem >= maximum_space)
-    max_minheights = 1000000000L;
-  else {
-    max_minheights = avail_mem / space_per_minheight;
-    /* If there doesn't seem to be enough space, try to get the minimum
-     * anyway.  This allows a "stub" implementation of jpeg_mem_available().
-     */
-    if (max_minheights <= 0)
-      max_minheights = 1;
-  }
-
-  /* Allocate the in-memory buffers and initialize backing store as needed. */
-
-  for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) {
-    if (sptr->mem_buffer == NULL) { /* if not realized yet */
-      minheights = ((long) sptr->rows_in_array - 1L) / sptr->maxaccess + 1L;
-      if (minheights <= max_minheights) {
-	/* This buffer fits in memory */
-	sptr->rows_in_mem = sptr->rows_in_array;
-      } else {
-	/* It doesn't fit in memory, create backing store. */
-	sptr->rows_in_mem = (JDIMENSION) (max_minheights * sptr->maxaccess);
-	jpeg_open_backing_store(cinfo, & sptr->b_s_info,
-				(long) sptr->rows_in_array *
-				(long) sptr->samplesperrow *
-				(long) SIZEOF(JSAMPLE));
-	sptr->b_s_open = TRUE;
-      }
-      sptr->mem_buffer = alloc_sarray(cinfo, JPOOL_IMAGE,
-				      sptr->samplesperrow, sptr->rows_in_mem);
-      sptr->rowsperchunk = mem->last_rowsperchunk;
-      sptr->cur_start_row = 0;
-      sptr->first_undef_row = 0;
-      sptr->dirty = FALSE;
-    }
-  }
-
-  for (bptr = mem->virt_barray_list; bptr != NULL; bptr = bptr->next) {
-    if (bptr->mem_buffer == NULL) { /* if not realized yet */
-      minheights = ((long) bptr->rows_in_array - 1L) / bptr->maxaccess + 1L;
-      if (minheights <= max_minheights) {
-	/* This buffer fits in memory */
-	bptr->rows_in_mem = bptr->rows_in_array;
-      } else {
-	/* It doesn't fit in memory, create backing store. */
-	bptr->rows_in_mem = (JDIMENSION) (max_minheights * bptr->maxaccess);
-	jpeg_open_backing_store(cinfo, & bptr->b_s_info,
-				(long) bptr->rows_in_array *
-				(long) bptr->blocksperrow *
-				(long) SIZEOF(JBLOCK));
-	bptr->b_s_open = TRUE;
-      }
-      bptr->mem_buffer = alloc_barray(cinfo, JPOOL_IMAGE,
-				      bptr->blocksperrow, bptr->rows_in_mem);
-      bptr->rowsperchunk = mem->last_rowsperchunk;
-      bptr->cur_start_row = 0;
-      bptr->first_undef_row = 0;
-      bptr->dirty = FALSE;
-    }
-  }
-}
-
-
-LOCAL(void)
-do_sarray_io (j_common_ptr cinfo, jvirt_sarray_ptr ptr, boolean writing)
-/* Do backing store read or write of a virtual sample array */
-{
-  long bytesperrow, file_offset, byte_count, rows, thisrow, i;
-
-  bytesperrow = (long) ptr->samplesperrow * SIZEOF(JSAMPLE);
-  file_offset = ptr->cur_start_row * bytesperrow;
-  /* Loop to read or write each allocation chunk in mem_buffer */
-  for (i = 0; i < (long) ptr->rows_in_mem; i += ptr->rowsperchunk) {
-    /* One chunk, but check for short chunk at end of buffer */
-    rows = MIN((long) ptr->rowsperchunk, (long) ptr->rows_in_mem - i);
-    /* Transfer no more than is currently defined */
-    thisrow = (long) ptr->cur_start_row + i;
-    rows = MIN(rows, (long) ptr->first_undef_row - thisrow);
-    /* Transfer no more than fits in file */
-    rows = MIN(rows, (long) ptr->rows_in_array - thisrow);
-    if (rows <= 0)		/* this chunk might be past end of file! */
-      break;
-    byte_count = rows * bytesperrow;
-    if (writing)
-      (*ptr->b_s_info.write_backing_store) (cinfo, & ptr->b_s_info,
-					    (void FAR *) ptr->mem_buffer[i],
-					    file_offset, byte_count);
-    else
-      (*ptr->b_s_info.read_backing_store) (cinfo, & ptr->b_s_info,
-					   (void FAR *) ptr->mem_buffer[i],
-					   file_offset, byte_count);
-    file_offset += byte_count;
-  }
-}
-
-
-LOCAL(void)
-do_barray_io (j_common_ptr cinfo, jvirt_barray_ptr ptr, boolean writing)
-/* Do backing store read or write of a virtual coefficient-block array */
-{
-  long bytesperrow, file_offset, byte_count, rows, thisrow, i;
-
-  bytesperrow = (long) ptr->blocksperrow * SIZEOF(JBLOCK);
-  file_offset = ptr->cur_start_row * bytesperrow;
-  /* Loop to read or write each allocation chunk in mem_buffer */
-  for (i = 0; i < (long) ptr->rows_in_mem; i += ptr->rowsperchunk) {
-    /* One chunk, but check for short chunk at end of buffer */
-    rows = MIN((long) ptr->rowsperchunk, (long) ptr->rows_in_mem - i);
-    /* Transfer no more than is currently defined */
-    thisrow = (long) ptr->cur_start_row + i;
-    rows = MIN(rows, (long) ptr->first_undef_row - thisrow);
-    /* Transfer no more than fits in file */
-    rows = MIN(rows, (long) ptr->rows_in_array - thisrow);
-    if (rows <= 0)		/* this chunk might be past end of file! */
-      break;
-    byte_count = rows * bytesperrow;
-    if (writing)
-      (*ptr->b_s_info.write_backing_store) (cinfo, & ptr->b_s_info,
-					    (void FAR *) ptr->mem_buffer[i],
-					    file_offset, byte_count);
-    else
-      (*ptr->b_s_info.read_backing_store) (cinfo, & ptr->b_s_info,
-					   (void FAR *) ptr->mem_buffer[i],
-					   file_offset, byte_count);
-    file_offset += byte_count;
-  }
-}
-
-
-METHODDEF(JSAMPARRAY)
-access_virt_sarray (j_common_ptr cinfo, jvirt_sarray_ptr ptr,
-		    JDIMENSION start_row, JDIMENSION num_rows,
-		    boolean writable)
-/* Access the part of a virtual sample array starting at start_row */
-/* and extending for num_rows rows.  writable is true if  */
-/* caller intends to modify the accessed area. */
-{
-  JDIMENSION end_row = start_row + num_rows;
-  JDIMENSION undef_row;
-
-  /* debugging check */
-  if (end_row > ptr->rows_in_array || num_rows > ptr->maxaccess ||
-      ptr->mem_buffer == NULL)
-    ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS);
-
-  /* Make the desired part of the virtual array accessible */
-  if (start_row < ptr->cur_start_row ||
-      end_row > ptr->cur_start_row+ptr->rows_in_mem) {
-    if (! ptr->b_s_open)
-      ERREXIT(cinfo, JERR_VIRTUAL_BUG);
-    /* Flush old buffer contents if necessary */
-    if (ptr->dirty) {
-      do_sarray_io(cinfo, ptr, TRUE);
-      ptr->dirty = FALSE;
-    }
-    /* Decide what part of virtual array to access.
-     * Algorithm: if target address > current window, assume forward scan,
-     * load starting at target address.  If target address < current window,
-     * assume backward scan, load so that target area is top of window.
-     * Note that when switching from forward write to forward read, will have
-     * start_row = 0, so the limiting case applies and we load from 0 anyway.
-     */
-    if (start_row > ptr->cur_start_row) {
-      ptr->cur_start_row = start_row;
-    } else {
-      /* use long arithmetic here to avoid overflow & unsigned problems */
-      long ltemp;
-
-      ltemp = (long) end_row - (long) ptr->rows_in_mem;
-      if (ltemp < 0)
-	ltemp = 0;		/* don't fall off front end of file */
-      ptr->cur_start_row = (JDIMENSION) ltemp;
-    }
-    /* Read in the selected part of the array.
-     * During the initial write pass, we will do no actual read
-     * because the selected part is all undefined.
-     */
-    do_sarray_io(cinfo, ptr, FALSE);
-  }
-  /* Ensure the accessed part of the array is defined; prezero if needed.
-   * To improve locality of access, we only prezero the part of the array
-   * that the caller is about to access, not the entire in-memory array.
-   */
-  if (ptr->first_undef_row < end_row) {
-    if (ptr->first_undef_row < start_row) {
-      if (writable)		/* writer skipped over a section of array */
-	ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS);
-      undef_row = start_row;	/* but reader is allowed to read ahead */
-    } else {
-      undef_row = ptr->first_undef_row;
-    }
-    if (writable)
-      ptr->first_undef_row = end_row;
-    if (ptr->pre_zero) {
-      size_t bytesperrow = (size_t) ptr->samplesperrow * SIZEOF(JSAMPLE);
-      undef_row -= ptr->cur_start_row; /* make indexes relative to buffer */
-      end_row -= ptr->cur_start_row;
-      while (undef_row < end_row) {
-	jzero_far((void FAR *) ptr->mem_buffer[undef_row], bytesperrow);
-	undef_row++;
-      }
-    } else {
-      if (! writable)		/* reader looking at undefined data */
-	ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS);
-    }
-  }
-  /* Flag the buffer dirty if caller will write in it */
-  if (writable)
-    ptr->dirty = TRUE;
-  /* Return address of proper part of the buffer */
-  return ptr->mem_buffer + (start_row - ptr->cur_start_row);
-}
-
-
-METHODDEF(JBLOCKARRAY)
-access_virt_barray (j_common_ptr cinfo, jvirt_barray_ptr ptr,
-		    JDIMENSION start_row, JDIMENSION num_rows,
-		    boolean writable)
-/* Access the part of a virtual block array starting at start_row */
-/* and extending for num_rows rows.  writable is true if  */
-/* caller intends to modify the accessed area. */
-{
-  JDIMENSION end_row = start_row + num_rows;
-  JDIMENSION undef_row;
-
-  /* debugging check */
-  if (end_row > ptr->rows_in_array || num_rows > ptr->maxaccess ||
-      ptr->mem_buffer == NULL)
-    ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS);
-
-  /* Make the desired part of the virtual array accessible */
-  if (start_row < ptr->cur_start_row ||
-      end_row > ptr->cur_start_row+ptr->rows_in_mem) {
-    if (! ptr->b_s_open)
-      ERREXIT(cinfo, JERR_VIRTUAL_BUG);
-    /* Flush old buffer contents if necessary */
-    if (ptr->dirty) {
-      do_barray_io(cinfo, ptr, TRUE);
-      ptr->dirty = FALSE;
-    }
-    /* Decide what part of virtual array to access.
-     * Algorithm: if target address > current window, assume forward scan,
-     * load starting at target address.  If target address < current window,
-     * assume backward scan, load so that target area is top of window.
-     * Note that when switching from forward write to forward read, will have
-     * start_row = 0, so the limiting case applies and we load from 0 anyway.
-     */
-    if (start_row > ptr->cur_start_row) {
-      ptr->cur_start_row = start_row;
-    } else {
-      /* use long arithmetic here to avoid overflow & unsigned problems */
-      long ltemp;
-
-      ltemp = (long) end_row - (long) ptr->rows_in_mem;
-      if (ltemp < 0)
-	ltemp = 0;		/* don't fall off front end of file */
-      ptr->cur_start_row = (JDIMENSION) ltemp;
-    }
-    /* Read in the selected part of the array.
-     * During the initial write pass, we will do no actual read
-     * because the selected part is all undefined.
-     */
-    do_barray_io(cinfo, ptr, FALSE);
-  }
-  /* Ensure the accessed part of the array is defined; prezero if needed.
-   * To improve locality of access, we only prezero the part of the array
-   * that the caller is about to access, not the entire in-memory array.
-   */
-  if (ptr->first_undef_row < end_row) {
-    if (ptr->first_undef_row < start_row) {
-      if (writable)		/* writer skipped over a section of array */
-	ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS);
-      undef_row = start_row;	/* but reader is allowed to read ahead */
-    } else {
-      undef_row = ptr->first_undef_row;
-    }
-    if (writable)
-      ptr->first_undef_row = end_row;
-    if (ptr->pre_zero) {
-      size_t bytesperrow = (size_t) ptr->blocksperrow * SIZEOF(JBLOCK);
-      undef_row -= ptr->cur_start_row; /* make indexes relative to buffer */
-      end_row -= ptr->cur_start_row;
-      while (undef_row < end_row) {
-	jzero_far((void FAR *) ptr->mem_buffer[undef_row], bytesperrow);
-	undef_row++;
-      }
-    } else {
-      if (! writable)		/* reader looking at undefined data */
-	ERREXIT(cinfo, JERR_BAD_VIRTUAL_ACCESS);
-    }
-  }
-  /* Flag the buffer dirty if caller will write in it */
-  if (writable)
-    ptr->dirty = TRUE;
-  /* Return address of proper part of the buffer */
-  return ptr->mem_buffer + (start_row - ptr->cur_start_row);
-}
-
-
-/*
- * Release all objects belonging to a specified pool.
- */
-
-METHODDEF(void)
-free_pool (j_common_ptr cinfo, int pool_id)
-{
-  my_mem_ptr mem = (my_mem_ptr) cinfo->mem;
-  small_pool_ptr shdr_ptr;
-  large_pool_ptr lhdr_ptr;
-  size_t space_freed;
-
-  if (pool_id < 0 || pool_id >= JPOOL_NUMPOOLS)
-    ERREXIT1(cinfo, JERR_BAD_POOL_ID, pool_id);	/* safety check */
-
-#ifdef MEM_STATS
-  if (cinfo->err->trace_level > 1)
-    print_mem_stats(cinfo, pool_id); /* print pool's memory usage statistics */
-#endif
-
-  /* If freeing IMAGE pool, close any virtual arrays first */
-  if (pool_id == JPOOL_IMAGE) {
-    jvirt_sarray_ptr sptr;
-    jvirt_barray_ptr bptr;
-
-    for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) {
-      if (sptr->b_s_open) {	/* there may be no backing store */
-	sptr->b_s_open = FALSE;	/* prevent recursive close if error */
-	(*sptr->b_s_info.close_backing_store) (cinfo, & sptr->b_s_info);
-      }
-    }
-    mem->virt_sarray_list = NULL;
-    for (bptr = mem->virt_barray_list; bptr != NULL; bptr = bptr->next) {
-      if (bptr->b_s_open) {	/* there may be no backing store */
-	bptr->b_s_open = FALSE;	/* prevent recursive close if error */
-	(*bptr->b_s_info.close_backing_store) (cinfo, & bptr->b_s_info);
-      }
-    }
-    mem->virt_barray_list = NULL;
-  }
-
-  /* Release large objects */
-  lhdr_ptr = mem->large_list[pool_id];
-  mem->large_list[pool_id] = NULL;
-
-  while (lhdr_ptr != NULL) {
-    large_pool_ptr next_lhdr_ptr = lhdr_ptr->hdr.next;
-    space_freed = lhdr_ptr->hdr.bytes_used +
-		  lhdr_ptr->hdr.bytes_left +
-		  SIZEOF(large_pool_hdr);
-    jpeg_free_large(cinfo, (void FAR *) lhdr_ptr, space_freed);
-    mem->total_space_allocated -= space_freed;
-    lhdr_ptr = next_lhdr_ptr;
-  }
-
-  /* Release small objects */
-  shdr_ptr = mem->small_list[pool_id];
-  mem->small_list[pool_id] = NULL;
-
-  while (shdr_ptr != NULL) {
-    small_pool_ptr next_shdr_ptr = shdr_ptr->hdr.next;
-    space_freed = shdr_ptr->hdr.bytes_used +
-		  shdr_ptr->hdr.bytes_left +
-		  SIZEOF(small_pool_hdr);
-    jpeg_free_small(cinfo, (void *) shdr_ptr, space_freed);
-    mem->total_space_allocated -= space_freed;
-    shdr_ptr = next_shdr_ptr;
-  }
-}
-
-
-/*
- * Close up shop entirely.
- * Note that this cannot be called unless cinfo->mem is non-NULL.
- */
-
-METHODDEF(void)
-self_destruct (j_common_ptr cinfo)
-{
-  int pool;
-
-  /* Close all backing store, release all memory.
-   * Releasing pools in reverse order might help avoid fragmentation
-   * with some (brain-damaged) malloc libraries.
-   */
-  for (pool = JPOOL_NUMPOOLS-1; pool >= JPOOL_PERMANENT; pool--) {
-    free_pool(cinfo, pool);
-  }
-
-  /* Release the memory manager control block too. */
-  jpeg_free_small(cinfo, (void *) cinfo->mem, SIZEOF(my_memory_mgr));
-  cinfo->mem = NULL;		/* ensures I will be called only once */
-
-  jpeg_mem_term(cinfo);		/* system-dependent cleanup */
-}
-
-
-/*
- * Memory manager initialization.
- * When this is called, only the error manager pointer is valid in cinfo!
- */
-
-GLOBAL(void)
-jinit_memory_mgr (j_common_ptr cinfo)
-{
-  my_mem_ptr mem;
-  long max_to_use;
-  int pool;
-  size_t test_mac;
-
-  cinfo->mem = NULL;		/* for safety if init fails */
-
-  /* Check for configuration errors.
-   * SIZEOF(ALIGN_TYPE) should be a power of 2; otherwise, it probably
-   * doesn't reflect any real hardware alignment requirement.
-   * The test is a little tricky: for X>0, X and X-1 have no one-bits
-   * in common if and only if X is a power of 2, ie has only one one-bit.
-   * Some compilers may give an "unreachable code" warning here; ignore it.
-   */
-  if ((SIZEOF(ALIGN_TYPE) & (SIZEOF(ALIGN_TYPE)-1)) != 0)
-    ERREXIT(cinfo, JERR_BAD_ALIGN_TYPE);
-  /* MAX_ALLOC_CHUNK must be representable as type size_t, and must be
-   * a multiple of SIZEOF(ALIGN_TYPE).
-   * Again, an "unreachable code" warning may be ignored here.
-   * But a "constant too large" warning means you need to fix MAX_ALLOC_CHUNK.
-   */
-  test_mac = (size_t) MAX_ALLOC_CHUNK;
-  if ((long) test_mac != MAX_ALLOC_CHUNK ||
-      (MAX_ALLOC_CHUNK % SIZEOF(ALIGN_TYPE)) != 0)
-    ERREXIT(cinfo, JERR_BAD_ALLOC_CHUNK);
-
-  max_to_use = jpeg_mem_init(cinfo); /* system-dependent initialization */
-
-  /* Attempt to allocate memory manager's control block */
-  mem = (my_mem_ptr) jpeg_get_small(cinfo, SIZEOF(my_memory_mgr));
-
-  if (mem == NULL) {
-    jpeg_mem_term(cinfo);	/* system-dependent cleanup */
-    ERREXIT1(cinfo, JERR_OUT_OF_MEMORY, 0);
-  }
-
-  /* OK, fill in the method pointers */
-  mem->pub.alloc_small = alloc_small;
-  mem->pub.alloc_large = alloc_large;
-  mem->pub.alloc_sarray = alloc_sarray;
-  mem->pub.alloc_barray = alloc_barray;
-  mem->pub.request_virt_sarray = request_virt_sarray;
-  mem->pub.request_virt_barray = request_virt_barray;
-  mem->pub.realize_virt_arrays = realize_virt_arrays;
-  mem->pub.access_virt_sarray = access_virt_sarray;
-  mem->pub.access_virt_barray = access_virt_barray;
-  mem->pub.free_pool = free_pool;
-  mem->pub.self_destruct = self_destruct;
-
-  /* Make MAX_ALLOC_CHUNK accessible to other modules */
-  mem->pub.max_alloc_chunk = MAX_ALLOC_CHUNK;
-
-  /* Initialize working state */
-  mem->pub.max_memory_to_use = max_to_use;
-
-  for (pool = JPOOL_NUMPOOLS-1; pool >= JPOOL_PERMANENT; pool--) {
-    mem->small_list[pool] = NULL;
-    mem->large_list[pool] = NULL;
-  }
-  mem->virt_sarray_list = NULL;
-  mem->virt_barray_list = NULL;
-
-  mem->total_space_allocated = SIZEOF(my_memory_mgr);
-
-  /* Declare ourselves open for business */
-  cinfo->mem = & mem->pub;
-
-  /* Check for an environment variable JPEGMEM; if found, override the
-   * default max_memory setting from jpeg_mem_init.  Note that the
-   * surrounding application may again override this value.
-   * If your system doesn't support getenv(), define NO_GETENV to disable
-   * this feature.
-   */
-#ifndef NO_GETENV
-  { char * memenv;
-
-    if ((memenv = getenv("JPEGMEM")) != NULL) {
-      char ch = 'x';
-
-      if (sscanf(memenv, "%ld%c", &max_to_use, &ch) > 0) {
-	if (ch == 'm' || ch == 'M')
-	  max_to_use *= 1000L;
-	mem->pub.max_memory_to_use = max_to_use * 1000L;
-      }
-    }
-  }
-#endif
-
-}
diff --git a/src/3rdparty/libjpeg/jmemnobs.c b/src/3rdparty/libjpeg/jmemnobs.c
deleted file mode 100644
index eb8c33772..000000000
--- a/src/3rdparty/libjpeg/jmemnobs.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * jmemnobs.c
- *
- * Copyright (C) 1992-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file provides a really simple implementation of the system-
- * dependent portion of the JPEG memory manager.  This implementation
- * assumes that no backing-store files are needed: all required space
- * can be obtained from malloc().
- * This is very portable in the sense that it'll compile on almost anything,
- * but you'd better have lots of main memory (or virtual memory) if you want
- * to process big images.
- * Note that the max_memory_to_use option is ignored by this implementation.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-#include "jmemsys.h"		/* import the system-dependent declarations */
-
-#ifndef HAVE_STDLIB_H		/* <stdlib.h> should declare malloc(),free() */
-extern void * malloc JPP((size_t size));
-extern void free JPP((void *ptr));
-#endif
-
-
-/*
- * Memory allocation and freeing are controlled by the regular library
- * routines malloc() and free().
- */
-
-GLOBAL(void *)
-jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject)
-{
-  return (void *) malloc(sizeofobject);
-}
-
-GLOBAL(void)
-jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject)
-{
-  free(object);
-}
-
-
-/*
- * "Large" objects are treated the same as "small" ones.
- * NB: although we include FAR keywords in the routine declarations,
- * this file won't actually work in 80x86 small/medium model; at least,
- * you probably won't be able to process useful-size images in only 64KB.
- */
-
-GLOBAL(void FAR *)
-jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject)
-{
-  return (void FAR *) malloc(sizeofobject);
-}
-
-GLOBAL(void)
-jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject)
-{
-  free(object);
-}
-
-
-/*
- * This routine computes the total memory space available for allocation.
- * Here we always say, "we got all you want bud!"
- */
-
-GLOBAL(long)
-jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed,
-		    long max_bytes_needed, long already_allocated)
-{
-  return max_bytes_needed;
-}
-
-
-/*
- * Backing store (temporary file) management.
- * Since jpeg_mem_available always promised the moon,
- * this should never be called and we can just error out.
- */
-
-GLOBAL(void)
-jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info,
-			 long total_bytes_needed)
-{
-  ERREXIT(cinfo, JERR_NO_BACKING_STORE);
-}
-
-
-/*
- * These routines take care of any system-dependent initialization and
- * cleanup required.  Here, there isn't any.
- */
-
-GLOBAL(long)
-jpeg_mem_init (j_common_ptr cinfo)
-{
-  return 0;			/* just set max_memory_to_use to 0 */
-}
-
-GLOBAL(void)
-jpeg_mem_term (j_common_ptr cinfo)
-{
-  /* no work */
-}
diff --git a/src/3rdparty/libjpeg/jmemsys.h b/src/3rdparty/libjpeg/jmemsys.h
deleted file mode 100644
index 6c3c6d348..000000000
--- a/src/3rdparty/libjpeg/jmemsys.h
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
- * jmemsys.h
- *
- * Copyright (C) 1992-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This include file defines the interface between the system-independent
- * and system-dependent portions of the JPEG memory manager.  No other
- * modules need include it.  (The system-independent portion is jmemmgr.c;
- * there are several different versions of the system-dependent portion.)
- *
- * This file works as-is for the system-dependent memory managers supplied
- * in the IJG distribution.  You may need to modify it if you write a
- * custom memory manager.  If system-dependent changes are needed in
- * this file, the best method is to #ifdef them based on a configuration
- * symbol supplied in jconfig.h, as we have done with USE_MSDOS_MEMMGR
- * and USE_MAC_MEMMGR.
- */
-
-
-/* Short forms of external names for systems with brain-damaged linkers. */
-
-#ifdef NEED_SHORT_EXTERNAL_NAMES
-#define jpeg_get_small		jGetSmall
-#define jpeg_free_small		jFreeSmall
-#define jpeg_get_large		jGetLarge
-#define jpeg_free_large		jFreeLarge
-#define jpeg_mem_available	jMemAvail
-#define jpeg_open_backing_store	jOpenBackStore
-#define jpeg_mem_init		jMemInit
-#define jpeg_mem_term		jMemTerm
-#endif /* NEED_SHORT_EXTERNAL_NAMES */
-
-
-/*
- * These two functions are used to allocate and release small chunks of
- * memory.  (Typically the total amount requested through jpeg_get_small is
- * no more than 20K or so; this will be requested in chunks of a few K each.)
- * Behavior should be the same as for the standard library functions malloc
- * and free; in particular, jpeg_get_small must return NULL on failure.
- * On most systems, these ARE malloc and free.  jpeg_free_small is passed the
- * size of the object being freed, just in case it's needed.
- * On an 80x86 machine using small-data memory model, these manage near heap.
- */
-
-EXTERN(void *) jpeg_get_small JPP((j_common_ptr cinfo, size_t sizeofobject));
-EXTERN(void) jpeg_free_small JPP((j_common_ptr cinfo, void * object,
-				  size_t sizeofobject));
-
-/*
- * These two functions are used to allocate and release large chunks of
- * memory (up to the total free space designated by jpeg_mem_available).
- * The interface is the same as above, except that on an 80x86 machine,
- * far pointers are used.  On most other machines these are identical to
- * the jpeg_get/free_small routines; but we keep them separate anyway,
- * in case a different allocation strategy is desirable for large chunks.
- */
-
-EXTERN(void FAR *) jpeg_get_large JPP((j_common_ptr cinfo,
-				       size_t sizeofobject));
-EXTERN(void) jpeg_free_large JPP((j_common_ptr cinfo, void FAR * object,
-				  size_t sizeofobject));
-
-/*
- * The macro MAX_ALLOC_CHUNK designates the maximum number of bytes that may
- * be requested in a single call to jpeg_get_large (and jpeg_get_small for that
- * matter, but that case should never come into play).  This macro is needed
- * to model the 64Kb-segment-size limit of far addressing on 80x86 machines.
- * On those machines, we expect that jconfig.h will provide a proper value.
- * On machines with 32-bit flat address spaces, any large constant may be used.
- *
- * NB: jmemmgr.c expects that MAX_ALLOC_CHUNK will be representable as type
- * size_t and will be a multiple of sizeof(align_type).
- */
-
-#ifndef MAX_ALLOC_CHUNK		/* may be overridden in jconfig.h */
-#define MAX_ALLOC_CHUNK  1000000000L
-#endif
-
-/*
- * This routine computes the total space still available for allocation by
- * jpeg_get_large.  If more space than this is needed, backing store will be
- * used.  NOTE: any memory already allocated must not be counted.
- *
- * There is a minimum space requirement, corresponding to the minimum
- * feasible buffer sizes; jmemmgr.c will request that much space even if
- * jpeg_mem_available returns zero.  The maximum space needed, enough to hold
- * all working storage in memory, is also passed in case it is useful.
- * Finally, the total space already allocated is passed.  If no better
- * method is available, cinfo->mem->max_memory_to_use - already_allocated
- * is often a suitable calculation.
- *
- * It is OK for jpeg_mem_available to underestimate the space available
- * (that'll just lead to more backing-store access than is really necessary).
- * However, an overestimate will lead to failure.  Hence it's wise to subtract
- * a slop factor from the true available space.  5% should be enough.
- *
- * On machines with lots of virtual memory, any large constant may be returned.
- * Conversely, zero may be returned to always use the minimum amount of memory.
- */
-
-EXTERN(long) jpeg_mem_available JPP((j_common_ptr cinfo,
-				     long min_bytes_needed,
-				     long max_bytes_needed,
-				     long already_allocated));
-
-
-/*
- * This structure holds whatever state is needed to access a single
- * backing-store object.  The read/write/close method pointers are called
- * by jmemmgr.c to manipulate the backing-store object; all other fields
- * are private to the system-dependent backing store routines.
- */
-
-#define TEMP_NAME_LENGTH   64	/* max length of a temporary file's name */
-
-
-#ifdef USE_MSDOS_MEMMGR		/* DOS-specific junk */
-
-typedef unsigned short XMSH;	/* type of extended-memory handles */
-typedef unsigned short EMSH;	/* type of expanded-memory handles */
-
-typedef union {
-  short file_handle;		/* DOS file handle if it's a temp file */
-  XMSH xms_handle;		/* handle if it's a chunk of XMS */
-  EMSH ems_handle;		/* handle if it's a chunk of EMS */
-} handle_union;
-
-#endif /* USE_MSDOS_MEMMGR */
-
-#ifdef USE_MAC_MEMMGR		/* Mac-specific junk */
-#include <Files.h>
-#endif /* USE_MAC_MEMMGR */
-
-
-typedef struct backing_store_struct * backing_store_ptr;
-
-typedef struct backing_store_struct {
-  /* Methods for reading/writing/closing this backing-store object */
-  JMETHOD(void, read_backing_store, (j_common_ptr cinfo,
-				     backing_store_ptr info,
-				     void FAR * buffer_address,
-				     long file_offset, long byte_count));
-  JMETHOD(void, write_backing_store, (j_common_ptr cinfo,
-				      backing_store_ptr info,
-				      void FAR * buffer_address,
-				      long file_offset, long byte_count));
-  JMETHOD(void, close_backing_store, (j_common_ptr cinfo,
-				      backing_store_ptr info));
-
-  /* Private fields for system-dependent backing-store management */
-#ifdef USE_MSDOS_MEMMGR
-  /* For the MS-DOS manager (jmemdos.c), we need: */
-  handle_union handle;		/* reference to backing-store storage object */
-  char temp_name[TEMP_NAME_LENGTH]; /* name if it's a file */
-#else
-#ifdef USE_MAC_MEMMGR
-  /* For the Mac manager (jmemmac.c), we need: */
-  short temp_file;		/* file reference number to temp file */
-  FSSpec tempSpec;		/* the FSSpec for the temp file */
-  char temp_name[TEMP_NAME_LENGTH]; /* name if it's a file */
-#else
-  /* For a typical implementation with temp files, we need: */
-  FILE * temp_file;		/* stdio reference to temp file */
-  char temp_name[TEMP_NAME_LENGTH]; /* name of temp file */
-#endif
-#endif
-} backing_store_info;
-
-
-/*
- * Initial opening of a backing-store object.  This must fill in the
- * read/write/close pointers in the object.  The read/write routines
- * may take an error exit if the specified maximum file size is exceeded.
- * (If jpeg_mem_available always returns a large value, this routine can
- * just take an error exit.)
- */
-
-EXTERN(void) jpeg_open_backing_store JPP((j_common_ptr cinfo,
-					  backing_store_ptr info,
-					  long total_bytes_needed));
-
-
-/*
- * These routines take care of any system-dependent initialization and
- * cleanup required.  jpeg_mem_init will be called before anything is
- * allocated (and, therefore, nothing in cinfo is of use except the error
- * manager pointer).  It should return a suitable default value for
- * max_memory_to_use; this may subsequently be overridden by the surrounding
- * application.  (Note that max_memory_to_use is only important if
- * jpeg_mem_available chooses to consult it ... no one else will.)
- * jpeg_mem_term may assume that all requested memory has been freed and that
- * all opened backing-store objects have been closed.
- */
-
-EXTERN(long) jpeg_mem_init JPP((j_common_ptr cinfo));
-EXTERN(void) jpeg_mem_term JPP((j_common_ptr cinfo));
diff --git a/src/3rdparty/libjpeg/jmorecfg.h b/src/3rdparty/libjpeg/jmorecfg.h
deleted file mode 100644
index 0ee359098..000000000
--- a/src/3rdparty/libjpeg/jmorecfg.h
+++ /dev/null
@@ -1,363 +0,0 @@
-/*
- * jmorecfg.h
- *
- * Copyright (C) 1991-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains additional configuration options that customize the
- * JPEG software for special applications or support machine-dependent
- * optimizations.  Most users will not need to touch this file.
- */
-
-
-/*
- * Define BITS_IN_JSAMPLE as either
- *   8   for 8-bit sample values (the usual setting)
- *   12  for 12-bit sample values
- * Only 8 and 12 are legal data precisions for lossy JPEG according to the
- * JPEG standard, and the IJG code does not support anything else!
- * We do not support run-time selection of data precision, sorry.
- */
-
-#define BITS_IN_JSAMPLE  8	/* use 8 or 12 */
-
-
-/*
- * Maximum number of components (color channels) allowed in JPEG image.
- * To meet the letter of the JPEG spec, set this to 255.  However, darn
- * few applications need more than 4 channels (maybe 5 for CMYK + alpha
- * mask).  We recommend 10 as a reasonable compromise; use 4 if you are
- * really short on memory.  (Each allowed component costs a hundred or so
- * bytes of storage, whether actually used in an image or not.)
- */
-
-#define MAX_COMPONENTS  10	/* maximum number of image components */
-
-
-/*
- * Basic data types.
- * You may need to change these if you have a machine with unusual data
- * type sizes; for example, "char" not 8 bits, "short" not 16 bits,
- * or "long" not 32 bits.  We don't care whether "int" is 16 or 32 bits,
- * but it had better be at least 16.
- */
-
-/* Representation of a single sample (pixel element value).
- * We frequently allocate large arrays of these, so it's important to keep
- * them small.  But if you have memory to burn and access to char or short
- * arrays is very slow on your hardware, you might want to change these.
- */
-
-#if BITS_IN_JSAMPLE == 8
-/* JSAMPLE should be the smallest type that will hold the values 0..255.
- * You can use a signed char by having GETJSAMPLE mask it with 0xFF.
- */
-
-#ifdef HAVE_UNSIGNED_CHAR
-
-typedef unsigned char JSAMPLE;
-#define GETJSAMPLE(value)  ((int) (value))
-
-#else /* not HAVE_UNSIGNED_CHAR */
-
-typedef char JSAMPLE;
-#ifdef CHAR_IS_UNSIGNED
-#define GETJSAMPLE(value)  ((int) (value))
-#else
-#define GETJSAMPLE(value)  ((int) (value) & 0xFF)
-#endif /* CHAR_IS_UNSIGNED */
-
-#endif /* HAVE_UNSIGNED_CHAR */
-
-#define MAXJSAMPLE	255
-#define CENTERJSAMPLE	128
-
-#endif /* BITS_IN_JSAMPLE == 8 */
-
-
-#if BITS_IN_JSAMPLE == 12
-/* JSAMPLE should be the smallest type that will hold the values 0..4095.
- * On nearly all machines "short" will do nicely.
- */
-
-typedef short JSAMPLE;
-#define GETJSAMPLE(value)  ((int) (value))
-
-#define MAXJSAMPLE	4095
-#define CENTERJSAMPLE	2048
-
-#endif /* BITS_IN_JSAMPLE == 12 */
-
-
-/* Representation of a DCT frequency coefficient.
- * This should be a signed value of at least 16 bits; "short" is usually OK.
- * Again, we allocate large arrays of these, but you can change to int
- * if you have memory to burn and "short" is really slow.
- */
-
-typedef short JCOEF;
-
-
-/* Compressed datastreams are represented as arrays of JOCTET.
- * These must be EXACTLY 8 bits wide, at least once they are written to
- * external storage.  Note that when using the stdio data source/destination
- * managers, this is also the data type passed to fread/fwrite.
- */
-
-#ifdef HAVE_UNSIGNED_CHAR
-
-typedef unsigned char JOCTET;
-#define GETJOCTET(value)  (value)
-
-#else /* not HAVE_UNSIGNED_CHAR */
-
-typedef char JOCTET;
-#ifdef CHAR_IS_UNSIGNED
-#define GETJOCTET(value)  (value)
-#else
-#define GETJOCTET(value)  ((value) & 0xFF)
-#endif /* CHAR_IS_UNSIGNED */
-
-#endif /* HAVE_UNSIGNED_CHAR */
-
-
-/* These typedefs are used for various table entries and so forth.
- * They must be at least as wide as specified; but making them too big
- * won't cost a huge amount of memory, so we don't provide special
- * extraction code like we did for JSAMPLE.  (In other words, these
- * typedefs live at a different point on the speed/space tradeoff curve.)
- */
-
-/* UINT8 must hold at least the values 0..255. */
-
-#ifdef HAVE_UNSIGNED_CHAR
-typedef unsigned char UINT8;
-#else /* not HAVE_UNSIGNED_CHAR */
-#ifdef CHAR_IS_UNSIGNED
-typedef char UINT8;
-#else /* not CHAR_IS_UNSIGNED */
-typedef short UINT8;
-#endif /* CHAR_IS_UNSIGNED */
-#endif /* HAVE_UNSIGNED_CHAR */
-
-/* UINT16 must hold at least the values 0..65535. */
-
-#ifdef HAVE_UNSIGNED_SHORT
-typedef unsigned short UINT16;
-#else /* not HAVE_UNSIGNED_SHORT */
-typedef unsigned int UINT16;
-#endif /* HAVE_UNSIGNED_SHORT */
-
-/* INT16 must hold at least the values -32768..32767. */
-
-#ifndef XMD_H			/* X11/xmd.h correctly defines INT16 */
-typedef short INT16;
-#endif
-
-/* INT32 must hold at least signed 32-bit values. */
-
-#ifndef XMD_H			/* X11/xmd.h correctly defines INT32 */
-typedef long INT32;
-#endif
-
-/* Datatype used for image dimensions.  The JPEG standard only supports
- * images up to 64K*64K due to 16-bit fields in SOF markers.  Therefore
- * "unsigned int" is sufficient on all machines.  However, if you need to
- * handle larger images and you don't mind deviating from the spec, you
- * can change this datatype.
- */
-
-typedef unsigned int JDIMENSION;
-
-#define JPEG_MAX_DIMENSION  65500L  /* a tad under 64K to prevent overflows */
-
-
-/* These macros are used in all function definitions and extern declarations.
- * You could modify them if you need to change function linkage conventions;
- * in particular, you'll need to do that to make the library a Windows DLL.
- * Another application is to make all functions global for use with debuggers
- * or code profilers that require it.
- */
-
-/* a function called through method pointers: */
-#define METHODDEF(type)		static type
-/* a function used only in its module: */
-#define LOCAL(type)		static type
-/* a function referenced thru EXTERNs: */
-#define GLOBAL(type)		type
-/* a reference to a GLOBAL function: */
-#define EXTERN(type)		extern type
-
-
-/* This macro is used to declare a "method", that is, a function pointer.
- * We want to supply prototype parameters if the compiler can cope.
- * Note that the arglist parameter must be parenthesized!
- * Again, you can customize this if you need special linkage keywords.
- */
-
-#ifdef HAVE_PROTOTYPES
-#define JMETHOD(type,methodname,arglist)  type (*methodname) arglist
-#else
-#define JMETHOD(type,methodname,arglist)  type (*methodname) ()
-#endif
-
-
-/* Here is the pseudo-keyword for declaring pointers that must be "far"
- * on 80x86 machines.  Most of the specialized coding for 80x86 is handled
- * by just saying "FAR *" where such a pointer is needed.  In a few places
- * explicit coding is needed; see uses of the NEED_FAR_POINTERS symbol.
- */
-
-#ifdef NEED_FAR_POINTERS
-#define FAR  far
-#else
-#define FAR
-#endif
-
-
-/*
- * On a few systems, type boolean and/or its values FALSE, TRUE may appear
- * in standard header files.  Or you may have conflicts with application-
- * specific header files that you want to include together with these files.
- * Defining HAVE_BOOLEAN before including jpeglib.h should make it work.
- */
-
-#ifndef HAVE_BOOLEAN
-typedef int boolean;
-#endif
-#ifndef FALSE			/* in case these macros already exist */
-#define FALSE	0		/* values of boolean */
-#endif
-#ifndef TRUE
-#define TRUE	1
-#endif
-
-
-/*
- * The remaining options affect code selection within the JPEG library,
- * but they don't need to be visible to most applications using the library.
- * To minimize application namespace pollution, the symbols won't be
- * defined unless JPEG_INTERNALS or JPEG_INTERNAL_OPTIONS has been defined.
- */
-
-#ifdef JPEG_INTERNALS
-#define JPEG_INTERNAL_OPTIONS
-#endif
-
-#ifdef JPEG_INTERNAL_OPTIONS
-
-
-/*
- * These defines indicate whether to include various optional functions.
- * Undefining some of these symbols will produce a smaller but less capable
- * library.  Note that you can leave certain source files out of the
- * compilation/linking process if you've #undef'd the corresponding symbols.
- * (You may HAVE to do that if your compiler doesn't like null source files.)
- */
-
-/* Arithmetic coding is unsupported for legal reasons.  Complaints to IBM. */
-
-/* Capability options common to encoder and decoder: */
-
-#define DCT_ISLOW_SUPPORTED	/* slow but accurate integer algorithm */
-#define DCT_IFAST_SUPPORTED	/* faster, less accurate integer method */
-#define DCT_FLOAT_SUPPORTED	/* floating-point: accurate, fast on fast HW */
-
-/* Encoder capability options: */
-
-#undef  C_ARITH_CODING_SUPPORTED    /* Arithmetic coding back end? */
-#define C_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */
-#define C_PROGRESSIVE_SUPPORTED	    /* Progressive JPEG? (Requires MULTISCAN)*/
-#define ENTROPY_OPT_SUPPORTED	    /* Optimization of entropy coding parms? */
-/* Note: if you selected 12-bit data precision, it is dangerous to turn off
- * ENTROPY_OPT_SUPPORTED.  The standard Huffman tables are only good for 8-bit
- * precision, so jchuff.c normally uses entropy optimization to compute
- * usable tables for higher precision.  If you don't want to do optimization,
- * you'll have to supply different default Huffman tables.
- * The exact same statements apply for progressive JPEG: the default tables
- * don't work for progressive mode.  (This may get fixed, however.)
- */
-#define INPUT_SMOOTHING_SUPPORTED   /* Input image smoothing option? */
-
-/* Decoder capability options: */
-
-#undef  D_ARITH_CODING_SUPPORTED    /* Arithmetic coding back end? */
-#define D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */
-#define D_PROGRESSIVE_SUPPORTED	    /* Progressive JPEG? (Requires MULTISCAN)*/
-#define SAVE_MARKERS_SUPPORTED	    /* jpeg_save_markers() needed? */
-#define BLOCK_SMOOTHING_SUPPORTED   /* Block smoothing? (Progressive only) */
-#define IDCT_SCALING_SUPPORTED	    /* Output rescaling via IDCT? */
-#undef  UPSAMPLE_SCALING_SUPPORTED  /* Output rescaling at upsample stage? */
-#define UPSAMPLE_MERGING_SUPPORTED  /* Fast path for sloppy upsampling? */
-#define TQUANT_1PASS_SUPPORTED	    /* 1-pass color quantization? */
-#define TQUANT_2PASS_SUPPORTED	    /* 2-pass color quantization? */
-
-/* more capability options later, no doubt */
-
-
-/*
- * Ordering of RGB data in scanlines passed to or from the application.
- * If your application wants to deal with data in the order B,G,R, just
- * change these macros.  You can also deal with formats such as R,G,B,X
- * (one extra byte per pixel) by changing RGB_PIXELSIZE.  Note that changing
- * the offsets will also change the order in which colormap data is organized.
- * RESTRICTIONS:
- * 1. The sample applications cjpeg,djpeg do NOT support modified RGB formats.
- * 2. These macros only affect RGB<=>YCbCr color conversion, so they are not
- *    useful if you are using JPEG color spaces other than YCbCr or grayscale.
- * 3. The color quantizer modules will not behave desirably if RGB_PIXELSIZE
- *    is not 3 (they don't understand about dummy color components!).  So you
- *    can't use color quantization if you change that value.
- */
-
-#define RGB_RED		0	/* Offset of Red in an RGB scanline element */
-#define RGB_GREEN	1	/* Offset of Green */
-#define RGB_BLUE	2	/* Offset of Blue */
-#define RGB_PIXELSIZE	3	/* JSAMPLEs per RGB scanline element */
-
-
-/* Definitions for speed-related optimizations. */
-
-
-/* If your compiler supports inline functions, define INLINE
- * as the inline keyword; otherwise define it as empty.
- */
-
-#ifndef INLINE
-#ifdef __GNUC__			/* for instance, GNU C knows about inline */
-#define INLINE __inline__
-#endif
-#ifndef INLINE
-#define INLINE			/* default is to define it as empty */
-#endif
-#endif
-
-
-/* On some machines (notably 68000 series) "int" is 32 bits, but multiplying
- * two 16-bit shorts is faster than multiplying two ints.  Define MULTIPLIER
- * as short on such a machine.  MULTIPLIER must be at least 16 bits wide.
- */
-
-#ifndef MULTIPLIER
-#define MULTIPLIER  int		/* type for fastest integer multiply */
-#endif
-
-
-/* FAST_FLOAT should be either float or double, whichever is done faster
- * by your compiler.  (Note that this type is only used in the floating point
- * DCT routines, so it only matters if you've defined DCT_FLOAT_SUPPORTED.)
- * Typically, float is faster in ANSI C compilers, while double is faster in
- * pre-ANSI compilers (because they insist on converting to double anyway).
- * The code below therefore chooses float if we have ANSI-style prototypes.
- */
-
-#ifndef FAST_FLOAT
-#ifdef HAVE_PROTOTYPES
-#define FAST_FLOAT  float
-#else
-#define FAST_FLOAT  double
-#endif
-#endif
-
-#endif /* JPEG_INTERNAL_OPTIONS */
diff --git a/src/3rdparty/libjpeg/jpegint.h b/src/3rdparty/libjpeg/jpegint.h
deleted file mode 100644
index 95b00d405..000000000
--- a/src/3rdparty/libjpeg/jpegint.h
+++ /dev/null
@@ -1,392 +0,0 @@
-/*
- * jpegint.h
- *
- * Copyright (C) 1991-1997, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file provides common declarations for the various JPEG modules.
- * These declarations are considered internal to the JPEG library; most
- * applications using the library shouldn't need to include this file.
- */
-
-
-/* Declarations for both compression & decompression */
-
-typedef enum {			/* Operating modes for buffer controllers */
-	JBUF_PASS_THRU,		/* Plain stripwise operation */
-	/* Remaining modes require a full-image buffer to have been created */
-	JBUF_SAVE_SOURCE,	/* Run source subobject only, save output */
-	JBUF_CRANK_DEST,	/* Run dest subobject only, using saved data */
-	JBUF_SAVE_AND_PASS	/* Run both subobjects, save output */
-} J_BUF_MODE;
-
-/* Values of global_state field (jdapi.c has some dependencies on ordering!) */
-#define CSTATE_START	100	/* after create_compress */
-#define CSTATE_SCANNING	101	/* start_compress done, write_scanlines OK */
-#define CSTATE_RAW_OK	102	/* start_compress done, write_raw_data OK */
-#define CSTATE_WRCOEFS	103	/* jpeg_write_coefficients done */
-#define DSTATE_START	200	/* after create_decompress */
-#define DSTATE_INHEADER	201	/* reading header markers, no SOS yet */
-#define DSTATE_READY	202	/* found SOS, ready for start_decompress */
-#define DSTATE_PRELOAD	203	/* reading multiscan file in start_decompress*/
-#define DSTATE_PRESCAN	204	/* performing dummy pass for 2-pass quant */
-#define DSTATE_SCANNING	205	/* start_decompress done, read_scanlines OK */
-#define DSTATE_RAW_OK	206	/* start_decompress done, read_raw_data OK */
-#define DSTATE_BUFIMAGE	207	/* expecting jpeg_start_output */
-#define DSTATE_BUFPOST	208	/* looking for SOS/EOI in jpeg_finish_output */
-#define DSTATE_RDCOEFS	209	/* reading file in jpeg_read_coefficients */
-#define DSTATE_STOPPING	210	/* looking for EOI in jpeg_finish_decompress */
-
-
-/* Declarations for compression modules */
-
-/* Master control module */
-struct jpeg_comp_master {
-  JMETHOD(void, prepare_for_pass, (j_compress_ptr cinfo));
-  JMETHOD(void, pass_startup, (j_compress_ptr cinfo));
-  JMETHOD(void, finish_pass, (j_compress_ptr cinfo));
-
-  /* State variables made visible to other modules */
-  boolean call_pass_startup;	/* True if pass_startup must be called */
-  boolean is_last_pass;		/* True during last pass */
-};
-
-/* Main buffer control (downsampled-data buffer) */
-struct jpeg_c_main_controller {
-  JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode));
-  JMETHOD(void, process_data, (j_compress_ptr cinfo,
-			       JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
-			       JDIMENSION in_rows_avail));
-};
-
-/* Compression preprocessing (downsampling input buffer control) */
-struct jpeg_c_prep_controller {
-  JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode));
-  JMETHOD(void, pre_process_data, (j_compress_ptr cinfo,
-				   JSAMPARRAY input_buf,
-				   JDIMENSION *in_row_ctr,
-				   JDIMENSION in_rows_avail,
-				   JSAMPIMAGE output_buf,
-				   JDIMENSION *out_row_group_ctr,
-				   JDIMENSION out_row_groups_avail));
-};
-
-/* Coefficient buffer control */
-struct jpeg_c_coef_controller {
-  JMETHOD(void, start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode));
-  JMETHOD(boolean, compress_data, (j_compress_ptr cinfo,
-				   JSAMPIMAGE input_buf));
-};
-
-/* Colorspace conversion */
-struct jpeg_color_converter {
-  JMETHOD(void, start_pass, (j_compress_ptr cinfo));
-  JMETHOD(void, color_convert, (j_compress_ptr cinfo,
-				JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
-				JDIMENSION output_row, int num_rows));
-};
-
-/* Downsampling */
-struct jpeg_downsampler {
-  JMETHOD(void, start_pass, (j_compress_ptr cinfo));
-  JMETHOD(void, downsample, (j_compress_ptr cinfo,
-			     JSAMPIMAGE input_buf, JDIMENSION in_row_index,
-			     JSAMPIMAGE output_buf,
-			     JDIMENSION out_row_group_index));
-
-  boolean need_context_rows;	/* TRUE if need rows above & below */
-};
-
-/* Forward DCT (also controls coefficient quantization) */
-struct jpeg_forward_dct {
-  JMETHOD(void, start_pass, (j_compress_ptr cinfo));
-  /* perhaps this should be an array??? */
-  JMETHOD(void, forward_DCT, (j_compress_ptr cinfo,
-			      jpeg_component_info * compptr,
-			      JSAMPARRAY sample_data, JBLOCKROW coef_blocks,
-			      JDIMENSION start_row, JDIMENSION start_col,
-			      JDIMENSION num_blocks));
-};
-
-/* Entropy encoding */
-struct jpeg_entropy_encoder {
-  JMETHOD(void, start_pass, (j_compress_ptr cinfo, boolean gather_statistics));
-  JMETHOD(boolean, encode_mcu, (j_compress_ptr cinfo, JBLOCKROW *MCU_data));
-  JMETHOD(void, finish_pass, (j_compress_ptr cinfo));
-};
-
-/* Marker writing */
-struct jpeg_marker_writer {
-  JMETHOD(void, write_file_header, (j_compress_ptr cinfo));
-  JMETHOD(void, write_frame_header, (j_compress_ptr cinfo));
-  JMETHOD(void, write_scan_header, (j_compress_ptr cinfo));
-  JMETHOD(void, write_file_trailer, (j_compress_ptr cinfo));
-  JMETHOD(void, write_tables_only, (j_compress_ptr cinfo));
-  /* These routines are exported to allow insertion of extra markers */
-  /* Probably only COM and APPn markers should be written this way */
-  JMETHOD(void, write_marker_header, (j_compress_ptr cinfo, int marker,
-				      unsigned int datalen));
-  JMETHOD(void, write_marker_byte, (j_compress_ptr cinfo, int val));
-};
-
-
-/* Declarations for decompression modules */
-
-/* Master control module */
-struct jpeg_decomp_master {
-  JMETHOD(void, prepare_for_output_pass, (j_decompress_ptr cinfo));
-  JMETHOD(void, finish_output_pass, (j_decompress_ptr cinfo));
-
-  /* State variables made visible to other modules */
-  boolean is_dummy_pass;	/* True during 1st pass for 2-pass quant */
-};
-
-/* Input control module */
-struct jpeg_input_controller {
-  JMETHOD(int, consume_input, (j_decompress_ptr cinfo));
-  JMETHOD(void, reset_input_controller, (j_decompress_ptr cinfo));
-  JMETHOD(void, start_input_pass, (j_decompress_ptr cinfo));
-  JMETHOD(void, finish_input_pass, (j_decompress_ptr cinfo));
-
-  /* State variables made visible to other modules */
-  boolean has_multiple_scans;	/* True if file has multiple scans */
-  boolean eoi_reached;		/* True when EOI has been consumed */
-};
-
-/* Main buffer control (downsampled-data buffer) */
-struct jpeg_d_main_controller {
-  JMETHOD(void, start_pass, (j_decompress_ptr cinfo, J_BUF_MODE pass_mode));
-  JMETHOD(void, process_data, (j_decompress_ptr cinfo,
-			       JSAMPARRAY output_buf, JDIMENSION *out_row_ctr,
-			       JDIMENSION out_rows_avail));
-};
-
-/* Coefficient buffer control */
-struct jpeg_d_coef_controller {
-  JMETHOD(void, start_input_pass, (j_decompress_ptr cinfo));
-  JMETHOD(int, consume_data, (j_decompress_ptr cinfo));
-  JMETHOD(void, start_output_pass, (j_decompress_ptr cinfo));
-  JMETHOD(int, decompress_data, (j_decompress_ptr cinfo,
-				 JSAMPIMAGE output_buf));
-  /* Pointer to array of coefficient virtual arrays, or NULL if none */
-  jvirt_barray_ptr *coef_arrays;
-};
-
-/* Decompression postprocessing (color quantization buffer control) */
-struct jpeg_d_post_controller {
-  JMETHOD(void, start_pass, (j_decompress_ptr cinfo, J_BUF_MODE pass_mode));
-  JMETHOD(void, post_process_data, (j_decompress_ptr cinfo,
-				    JSAMPIMAGE input_buf,
-				    JDIMENSION *in_row_group_ctr,
-				    JDIMENSION in_row_groups_avail,
-				    JSAMPARRAY output_buf,
-				    JDIMENSION *out_row_ctr,
-				    JDIMENSION out_rows_avail));
-};
-
-/* Marker reading & parsing */
-struct jpeg_marker_reader {
-  JMETHOD(void, reset_marker_reader, (j_decompress_ptr cinfo));
-  /* Read markers until SOS or EOI.
-   * Returns same codes as are defined for jpeg_consume_input:
-   * JPEG_SUSPENDED, JPEG_REACHED_SOS, or JPEG_REACHED_EOI.
-   */
-  JMETHOD(int, read_markers, (j_decompress_ptr cinfo));
-  /* Read a restart marker --- exported for use by entropy decoder only */
-  jpeg_marker_parser_method read_restart_marker;
-
-  /* State of marker reader --- nominally internal, but applications
-   * supplying COM or APPn handlers might like to know the state.
-   */
-  boolean saw_SOI;		/* found SOI? */
-  boolean saw_SOF;		/* found SOF? */
-  int next_restart_num;		/* next restart number expected (0-7) */
-  unsigned int discarded_bytes;	/* # of bytes skipped looking for a marker */
-};
-
-/* Entropy decoding */
-struct jpeg_entropy_decoder {
-  JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
-  JMETHOD(boolean, decode_mcu, (j_decompress_ptr cinfo,
-				JBLOCKROW *MCU_data));
-
-  /* This is here to share code between baseline and progressive decoders; */
-  /* other modules probably should not use it */
-  boolean insufficient_data;	/* set TRUE after emitting warning */
-};
-
-/* Inverse DCT (also performs dequantization) */
-typedef JMETHOD(void, inverse_DCT_method_ptr,
-		(j_decompress_ptr cinfo, jpeg_component_info * compptr,
-		 JCOEFPTR coef_block,
-		 JSAMPARRAY output_buf, JDIMENSION output_col));
-
-struct jpeg_inverse_dct {
-  JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
-  /* It is useful to allow each component to have a separate IDCT method. */
-  inverse_DCT_method_ptr inverse_DCT[MAX_COMPONENTS];
-};
-
-/* Upsampling (note that upsampler must also call color converter) */
-struct jpeg_upsampler {
-  JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
-  JMETHOD(void, upsample, (j_decompress_ptr cinfo,
-			   JSAMPIMAGE input_buf,
-			   JDIMENSION *in_row_group_ctr,
-			   JDIMENSION in_row_groups_avail,
-			   JSAMPARRAY output_buf,
-			   JDIMENSION *out_row_ctr,
-			   JDIMENSION out_rows_avail));
-
-  boolean need_context_rows;	/* TRUE if need rows above & below */
-};
-
-/* Colorspace conversion */
-struct jpeg_color_deconverter {
-  JMETHOD(void, start_pass, (j_decompress_ptr cinfo));
-  JMETHOD(void, color_convert, (j_decompress_ptr cinfo,
-				JSAMPIMAGE input_buf, JDIMENSION input_row,
-				JSAMPARRAY output_buf, int num_rows));
-};
-
-/* Color quantization or color precision reduction */
-struct jpeg_color_quantizer {
-  JMETHOD(void, start_pass, (j_decompress_ptr cinfo, boolean is_pre_scan));
-  JMETHOD(void, color_quantize, (j_decompress_ptr cinfo,
-				 JSAMPARRAY input_buf, JSAMPARRAY output_buf,
-				 int num_rows));
-  JMETHOD(void, finish_pass, (j_decompress_ptr cinfo));
-  JMETHOD(void, new_color_map, (j_decompress_ptr cinfo));
-};
-
-
-/* Miscellaneous useful macros */
-
-#undef MAX
-#define MAX(a,b)	((a) > (b) ? (a) : (b))
-#undef MIN
-#define MIN(a,b)	((a) < (b) ? (a) : (b))
-
-
-/* We assume that right shift corresponds to signed division by 2 with
- * rounding towards minus infinity.  This is correct for typical "arithmetic
- * shift" instructions that shift in copies of the sign bit.  But some
- * C compilers implement >> with an unsigned shift.  For these machines you
- * must define RIGHT_SHIFT_IS_UNSIGNED.
- * RIGHT_SHIFT provides a proper signed right shift of an INT32 quantity.
- * It is only applied with constant shift counts.  SHIFT_TEMPS must be
- * included in the variables of any routine using RIGHT_SHIFT.
- */
-
-#ifdef RIGHT_SHIFT_IS_UNSIGNED
-#define SHIFT_TEMPS	INT32 shift_temp;
-#define RIGHT_SHIFT(x,shft)  \
-	((shift_temp = (x)) < 0 ? \
-	 (shift_temp >> (shft)) | ((~((INT32) 0)) << (32-(shft))) : \
-	 (shift_temp >> (shft)))
-#else
-#define SHIFT_TEMPS
-#define RIGHT_SHIFT(x,shft)	((x) >> (shft))
-#endif
-
-
-/* Short forms of external names for systems with brain-damaged linkers. */
-
-#ifdef NEED_SHORT_EXTERNAL_NAMES
-#define jinit_compress_master	jICompress
-#define jinit_c_master_control	jICMaster
-#define jinit_c_main_controller	jICMainC
-#define jinit_c_prep_controller	jICPrepC
-#define jinit_c_coef_controller	jICCoefC
-#define jinit_color_converter	jICColor
-#define jinit_downsampler	jIDownsampler
-#define jinit_forward_dct	jIFDCT
-#define jinit_huff_encoder	jIHEncoder
-#define jinit_phuff_encoder	jIPHEncoder
-#define jinit_marker_writer	jIMWriter
-#define jinit_master_decompress	jIDMaster
-#define jinit_d_main_controller	jIDMainC
-#define jinit_d_coef_controller	jIDCoefC
-#define jinit_d_post_controller	jIDPostC
-#define jinit_input_controller	jIInCtlr
-#define jinit_marker_reader	jIMReader
-#define jinit_huff_decoder	jIHDecoder
-#define jinit_phuff_decoder	jIPHDecoder
-#define jinit_inverse_dct	jIIDCT
-#define jinit_upsampler		jIUpsampler
-#define jinit_color_deconverter	jIDColor
-#define jinit_1pass_quantizer	jI1Quant
-#define jinit_2pass_quantizer	jI2Quant
-#define jinit_merged_upsampler	jIMUpsampler
-#define jinit_memory_mgr	jIMemMgr
-#define jdiv_round_up		jDivRound
-#define jround_up		jRound
-#define jcopy_sample_rows	jCopySamples
-#define jcopy_block_row		jCopyBlocks
-#define jzero_far		jZeroFar
-#define jpeg_zigzag_order	jZIGTable
-#define jpeg_natural_order	jZAGTable
-#endif /* NEED_SHORT_EXTERNAL_NAMES */
-
-
-/* Compression module initialization routines */
-EXTERN(void) jinit_compress_master JPP((j_compress_ptr cinfo));
-EXTERN(void) jinit_c_master_control JPP((j_compress_ptr cinfo,
-					 boolean transcode_only));
-EXTERN(void) jinit_c_main_controller JPP((j_compress_ptr cinfo,
-					  boolean need_full_buffer));
-EXTERN(void) jinit_c_prep_controller JPP((j_compress_ptr cinfo,
-					  boolean need_full_buffer));
-EXTERN(void) jinit_c_coef_controller JPP((j_compress_ptr cinfo,
-					  boolean need_full_buffer));
-EXTERN(void) jinit_color_converter JPP((j_compress_ptr cinfo));
-EXTERN(void) jinit_downsampler JPP((j_compress_ptr cinfo));
-EXTERN(void) jinit_forward_dct JPP((j_compress_ptr cinfo));
-EXTERN(void) jinit_huff_encoder JPP((j_compress_ptr cinfo));
-EXTERN(void) jinit_phuff_encoder JPP((j_compress_ptr cinfo));
-EXTERN(void) jinit_marker_writer JPP((j_compress_ptr cinfo));
-/* Decompression module initialization routines */
-EXTERN(void) jinit_master_decompress JPP((j_decompress_ptr cinfo));
-EXTERN(void) jinit_d_main_controller JPP((j_decompress_ptr cinfo,
-					  boolean need_full_buffer));
-EXTERN(void) jinit_d_coef_controller JPP((j_decompress_ptr cinfo,
-					  boolean need_full_buffer));
-EXTERN(void) jinit_d_post_controller JPP((j_decompress_ptr cinfo,
-					  boolean need_full_buffer));
-EXTERN(void) jinit_input_controller JPP((j_decompress_ptr cinfo));
-EXTERN(void) jinit_marker_reader JPP((j_decompress_ptr cinfo));
-EXTERN(void) jinit_huff_decoder JPP((j_decompress_ptr cinfo));
-EXTERN(void) jinit_phuff_decoder JPP((j_decompress_ptr cinfo));
-EXTERN(void) jinit_inverse_dct JPP((j_decompress_ptr cinfo));
-EXTERN(void) jinit_upsampler JPP((j_decompress_ptr cinfo));
-EXTERN(void) jinit_color_deconverter JPP((j_decompress_ptr cinfo));
-EXTERN(void) jinit_1pass_quantizer JPP((j_decompress_ptr cinfo));
-EXTERN(void) jinit_2pass_quantizer JPP((j_decompress_ptr cinfo));
-EXTERN(void) jinit_merged_upsampler JPP((j_decompress_ptr cinfo));
-/* Memory manager initialization */
-EXTERN(void) jinit_memory_mgr JPP((j_common_ptr cinfo));
-
-/* Utility routines in jutils.c */
-EXTERN(long) jdiv_round_up JPP((long a, long b));
-EXTERN(long) jround_up JPP((long a, long b));
-EXTERN(void) jcopy_sample_rows JPP((JSAMPARRAY input_array, int source_row,
-				    JSAMPARRAY output_array, int dest_row,
-				    int num_rows, JDIMENSION num_cols));
-EXTERN(void) jcopy_block_row JPP((JBLOCKROW input_row, JBLOCKROW output_row,
-				  JDIMENSION num_blocks));
-EXTERN(void) jzero_far JPP((void FAR * target, size_t bytestozero));
-/* Constant tables in jutils.c */
-#if 0				/* This table is not actually needed in v6a */
-extern const int jpeg_zigzag_order[]; /* natural coef order to zigzag order */
-#endif
-extern const int jpeg_natural_order[]; /* zigzag coef order to natural order */
-
-/* Suppress undefined-structure complaints if necessary. */
-
-#ifdef INCOMPLETE_TYPES_BROKEN
-#ifndef AM_MEMORY_MANAGER	/* only jmemmgr.c defines these */
-struct jvirt_sarray_control { long dummy; };
-struct jvirt_barray_control { long dummy; };
-#endif
-#endif /* INCOMPLETE_TYPES_BROKEN */
diff --git a/src/3rdparty/libjpeg/jpeglib.h b/src/3rdparty/libjpeg/jpeglib.h
deleted file mode 100644
index 8a9631f1d..000000000
--- a/src/3rdparty/libjpeg/jpeglib.h
+++ /dev/null
@@ -1,1096 +0,0 @@
-/*
- * jpeglib.h
- *
- * Copyright (C) 1991-1998, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file defines the application interface for the JPEG library.
- * Most applications using the library need only include this file,
- * and perhaps jerror.h if they want to know the exact error codes.
- */
-
-#ifndef JPEGLIB_H
-#define JPEGLIB_H
-
-/*
- * First we include the configuration files that record how this
- * installation of the JPEG library is set up.  jconfig.h can be
- * generated automatically for many systems.  jmorecfg.h contains
- * manual configuration options that most people need not worry about.
- */
-
-#ifndef JCONFIG_INCLUDED	/* in case jinclude.h already did */
-#include "jconfig.h"		/* widely used configuration options */
-#endif
-#include "jmorecfg.h"		/* seldom changed options */
-
-
-/* Version ID for the JPEG library.
- * Might be useful for tests like "#if JPEG_LIB_VERSION >= 60".
- */
-
-#define JPEG_LIB_VERSION  62	/* Version 6b */
-
-
-/* Various constants determining the sizes of things.
- * All of these are specified by the JPEG standard, so don't change them
- * if you want to be compatible.
- */
-
-#define DCTSIZE		    8	/* The basic DCT block is 8x8 samples */
-#define DCTSIZE2	    64	/* DCTSIZE squared; # of elements in a block */
-#define NUM_QUANT_TBLS      4	/* Quantization tables are numbered 0..3 */
-#define NUM_HUFF_TBLS       4	/* Huffman tables are numbered 0..3 */
-#define NUM_ARITH_TBLS      16	/* Arith-coding tables are numbered 0..15 */
-#define MAX_COMPS_IN_SCAN   4	/* JPEG limit on # of components in one scan */
-#define MAX_SAMP_FACTOR     4	/* JPEG limit on sampling factors */
-/* Unfortunately, some bozo at Adobe saw no reason to be bound by the standard;
- * the PostScript DCT filter can emit files with many more than 10 blocks/MCU.
- * If you happen to run across such a file, you can up D_MAX_BLOCKS_IN_MCU
- * to handle it.  We even let you do this from the jconfig.h file.  However,
- * we strongly discourage changing C_MAX_BLOCKS_IN_MCU; just because Adobe
- * sometimes emits noncompliant files doesn't mean you should too.
- */
-#define C_MAX_BLOCKS_IN_MCU   10 /* compressor's limit on blocks per MCU */
-#ifndef D_MAX_BLOCKS_IN_MCU
-#define D_MAX_BLOCKS_IN_MCU   10 /* decompressor's limit on blocks per MCU */
-#endif
-
-
-/* Data structures for images (arrays of samples and of DCT coefficients).
- * On 80x86 machines, the image arrays are too big for near pointers,
- * but the pointer arrays can fit in near memory.
- */
-
-typedef JSAMPLE FAR *JSAMPROW;	/* ptr to one image row of pixel samples. */
-typedef JSAMPROW *JSAMPARRAY;	/* ptr to some rows (a 2-D sample array) */
-typedef JSAMPARRAY *JSAMPIMAGE;	/* a 3-D sample array: top index is color */
-
-typedef JCOEF JBLOCK[DCTSIZE2];	/* one block of coefficients */
-typedef JBLOCK FAR *JBLOCKROW;	/* pointer to one row of coefficient blocks */
-typedef JBLOCKROW *JBLOCKARRAY;		/* a 2-D array of coefficient blocks */
-typedef JBLOCKARRAY *JBLOCKIMAGE;	/* a 3-D array of coefficient blocks */
-
-typedef JCOEF FAR *JCOEFPTR;	/* useful in a couple of places */
-
-
-/* Types for JPEG compression parameters and working tables. */
-
-
-/* DCT coefficient quantization tables. */
-
-typedef struct {
-  /* This array gives the coefficient quantizers in natural array order
-   * (not the zigzag order in which they are stored in a JPEG DQT marker).
-   * CAUTION: IJG versions prior to v6a kept this array in zigzag order.
-   */
-  UINT16 quantval[DCTSIZE2];	/* quantization step for each coefficient */
-  /* This field is used only during compression.  It's initialized FALSE when
-   * the table is created, and set TRUE when it's been output to the file.
-   * You could suppress output of a table by setting this to TRUE.
-   * (See jpeg_suppress_tables for an example.)
-   */
-  boolean sent_table;		/* TRUE when table has been output */
-} JTQUANT_TBL;
-
-
-/* Huffman coding tables. */
-
-typedef struct {
-  /* These two fields directly represent the contents of a JPEG DHT marker */
-  UINT8 bits[17];		/* bits[k] = # of symbols with codes of */
-				/* length k bits; bits[0] is unused */
-  UINT8 huffval[256];		/* The symbols, in order of incr code length */
-  /* This field is used only during compression.  It's initialized FALSE when
-   * the table is created, and set TRUE when it's been output to the file.
-   * You could suppress output of a table by setting this to TRUE.
-   * (See jpeg_suppress_tables for an example.)
-   */
-  boolean sent_table;		/* TRUE when table has been output */
-} JHUFF_TBL;
-
-
-/* Basic info about one component (color channel). */
-
-typedef struct {
-  /* These values are fixed over the whole image. */
-  /* For compression, they must be supplied by parameter setup; */
-  /* for decompression, they are read from the SOF marker. */
-  int component_id;		/* identifier for this component (0..255) */
-  int component_index;		/* its index in SOF or cinfo->comp_info[] */
-  int h_samp_factor;		/* horizontal sampling factor (1..4) */
-  int v_samp_factor;		/* vertical sampling factor (1..4) */
-  int quant_tbl_no;		/* quantization table selector (0..3) */
-  /* These values may vary between scans. */
-  /* For compression, they must be supplied by parameter setup; */
-  /* for decompression, they are read from the SOS marker. */
-  /* The decompressor output side may not use these variables. */
-  int dc_tbl_no;		/* DC entropy table selector (0..3) */
-  int ac_tbl_no;		/* AC entropy table selector (0..3) */
-  
-  /* Remaining fields should be treated as private by applications. */
-  
-  /* These values are computed during compression or decompression startup: */
-  /* Component's size in DCT blocks.
-   * Any dummy blocks added to complete an MCU are not counted; therefore
-   * these values do not depend on whether a scan is interleaved or not.
-   */
-  JDIMENSION width_in_blocks;
-  JDIMENSION height_in_blocks;
-  /* Size of a DCT block in samples.  Always DCTSIZE for compression.
-   * For decompression this is the size of the output from one DCT block,
-   * reflecting any scaling we choose to apply during the IDCT step.
-   * Values of 1,2,4,8 are likely to be supported.  Note that different
-   * components may receive different IDCT scalings.
-   */
-  int DCT_scaled_size;
-  /* The downsampled dimensions are the component's actual, unpadded number
-   * of samples at the main buffer (preprocessing/compression interface), thus
-   * downsampled_width = ceil(image_width * Hi/Hmax)
-   * and similarly for height.  For decompression, IDCT scaling is included, so
-   * downsampled_width = ceil(image_width * Hi/Hmax * DCT_scaled_size/DCTSIZE)
-   */
-  JDIMENSION downsampled_width;	 /* actual width in samples */
-  JDIMENSION downsampled_height; /* actual height in samples */
-  /* This flag is used only for decompression.  In cases where some of the
-   * components will be ignored (eg grayscale output from YCbCr image),
-   * we can skip most computations for the unused components.
-   */
-  boolean component_needed;	/* do we need the value of this component? */
-
-  /* These values are computed before starting a scan of the component. */
-  /* The decompressor output side may not use these variables. */
-  int MCU_width;		/* number of blocks per MCU, horizontally */
-  int MCU_height;		/* number of blocks per MCU, vertically */
-  int MCU_blocks;		/* MCU_width * MCU_height */
-  int MCU_sample_width;		/* MCU width in samples, MCU_width*DCT_scaled_size */
-  int last_col_width;		/* # of non-dummy blocks across in last MCU */
-  int last_row_height;		/* # of non-dummy blocks down in last MCU */
-
-  /* Saved quantization table for component; NULL if none yet saved.
-   * See jdinput.c comments about the need for this information.
-   * This field is currently used only for decompression.
-   */
-  JTQUANT_TBL * quant_table;
-
-  /* Private per-component storage for DCT or IDCT subsystem. */
-  void * dct_table;
-} jpeg_component_info;
-
-
-/* The script for encoding a multiple-scan file is an array of these: */
-
-typedef struct {
-  int comps_in_scan;		/* number of components encoded in this scan */
-  int component_index[MAX_COMPS_IN_SCAN]; /* their SOF/comp_info[] indexes */
-  int Ss, Se;			/* progressive JPEG spectral selection parms */
-  int Ah, Al;			/* progressive JPEG successive approx. parms */
-} jpeg_scan_info;
-
-/* The decompressor can save APPn and COM markers in a list of these: */
-
-typedef struct jpeg_marker_struct FAR * jpeg_saved_marker_ptr;
-
-struct jpeg_marker_struct {
-  jpeg_saved_marker_ptr next;	/* next in list, or NULL */
-  UINT8 marker;			/* marker code: JPEG_COM, or JPEG_APP0+n */
-  unsigned int original_length;	/* # bytes of data in the file */
-  unsigned int data_length;	/* # bytes of data saved at data[] */
-  JOCTET FAR * data;		/* the data contained in the marker */
-  /* the marker length word is not counted in data_length or original_length */
-};
-
-/* Known color spaces. */
-
-typedef enum {
-	JCS_UNKNOWN,		/* error/unspecified */
-	JCS_GRAYSCALE,		/* monochrome */
-	JCS_RGB,		/* red/green/blue */
-	JCS_YCbCr,		/* Y/Cb/Cr (also known as YUV) */
-	JCS_CMYK,		/* C/M/Y/K */
-	JCS_YCCK		/* Y/Cb/Cr/K */
-} J_COLOR_SPACE;
-
-/* DCT/IDCT algorithm options. */
-
-typedef enum {
-	JDCT_ISLOW,		/* slow but accurate integer algorithm */
-	JDCT_IFAST,		/* faster, less accurate integer method */
-	JDCT_FLOAT		/* floating-point: accurate, fast on fast HW */
-} J_DCT_METHOD;
-
-#ifndef JDCT_DEFAULT		/* may be overridden in jconfig.h */
-#define JDCT_DEFAULT  JDCT_ISLOW
-#endif
-#ifndef JDCT_FASTEST		/* may be overridden in jconfig.h */
-#define JDCT_FASTEST  JDCT_IFAST
-#endif
-
-/* Dithering options for decompression. */
-
-typedef enum {
-	JDITHER_NONE,		/* no dithering */
-	JDITHER_ORDERED,	/* simple ordered dither */
-	JDITHER_FS		/* Floyd-Steinberg error diffusion dither */
-} J_DITHER_MODE;
-
-
-/* Common fields between JPEG compression and decompression master structs. */
-
-#define jpeg_common_fields \
-  struct jpeg_error_mgr * err;	/* Error handler module */\
-  struct jpeg_memory_mgr * mem;	/* Memory manager module */\
-  struct jpeg_progress_mgr * progress; /* Progress monitor, or NULL if none */\
-  void * client_data;		/* Available for use by application */\
-  boolean is_decompressor;	/* So common code can tell which is which */\
-  int global_state		/* For checking call sequence validity */
-
-/* Routines that are to be used by both halves of the library are declared
- * to receive a pointer to this structure.  There are no actual instances of
- * jpeg_common_struct, only of jpeg_compress_struct and jpeg_decompress_struct.
- */
-struct jpeg_common_struct {
-  jpeg_common_fields;		/* Fields common to both master struct types */
-  /* Additional fields follow in an actual jpeg_compress_struct or
-   * jpeg_decompress_struct.  All three structs must agree on these
-   * initial fields!  (This would be a lot cleaner in C++.)
-   */
-};
-
-typedef struct jpeg_common_struct * j_common_ptr;
-typedef struct jpeg_compress_struct * j_compress_ptr;
-typedef struct jpeg_decompress_struct * j_decompress_ptr;
-
-
-/* Master record for a compression instance */
-
-struct jpeg_compress_struct {
-  jpeg_common_fields;		/* Fields shared with jpeg_decompress_struct */
-
-  /* Destination for compressed data */
-  struct jpeg_destination_mgr * dest;
-
-  /* Description of source image --- these fields must be filled in by
-   * outer application before starting compression.  in_color_space must
-   * be correct before you can even call jpeg_set_defaults().
-   */
-
-  JDIMENSION image_width;	/* input image width */
-  JDIMENSION image_height;	/* input image height */
-  int input_components;		/* # of color components in input image */
-  J_COLOR_SPACE in_color_space;	/* colorspace of input image */
-
-  double input_gamma;		/* image gamma of input image */
-
-  /* Compression parameters --- these fields must be set before calling
-   * jpeg_start_compress().  We recommend calling jpeg_set_defaults() to
-   * initialize everything to reasonable defaults, then changing anything
-   * the application specifically wants to change.  That way you won't get
-   * burnt when new parameters are added.  Also note that there are several
-   * helper routines to simplify changing parameters.
-   */
-
-  int data_precision;		/* bits of precision in image data */
-
-  int num_components;		/* # of color components in JPEG image */
-  J_COLOR_SPACE jpeg_color_space; /* colorspace of JPEG image */
-
-  jpeg_component_info * comp_info;
-  /* comp_info[i] describes component that appears i'th in SOF */
-  
-  JTQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS];
-  /* ptrs to coefficient quantization tables, or NULL if not defined */
-  
-  JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS];
-  JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS];
-  /* ptrs to Huffman coding tables, or NULL if not defined */
-  
-  UINT8 arith_dc_L[NUM_ARITH_TBLS]; /* L values for DC arith-coding tables */
-  UINT8 arith_dc_U[NUM_ARITH_TBLS]; /* U values for DC arith-coding tables */
-  UINT8 arith_ac_K[NUM_ARITH_TBLS]; /* Kx values for AC arith-coding tables */
-
-  int num_scans;		/* # of entries in scan_info array */
-  const jpeg_scan_info * scan_info; /* script for multi-scan file, or NULL */
-  /* The default value of scan_info is NULL, which causes a single-scan
-   * sequential JPEG file to be emitted.  To create a multi-scan file,
-   * set num_scans and scan_info to point to an array of scan definitions.
-   */
-
-  boolean raw_data_in;		/* TRUE=caller supplies downsampled data */
-  boolean arith_code;		/* TRUE=arithmetic coding, FALSE=Huffman */
-  boolean optimize_coding;	/* TRUE=optimize entropy encoding parms */
-  boolean CCIR601_sampling;	/* TRUE=first samples are cosited */
-  int smoothing_factor;		/* 1..100, or 0 for no input smoothing */
-  J_DCT_METHOD dct_method;	/* DCT algorithm selector */
-
-  /* The restart interval can be specified in absolute MCUs by setting
-   * restart_interval, or in MCU rows by setting restart_in_rows
-   * (in which case the correct restart_interval will be figured
-   * for each scan).
-   */
-  unsigned int restart_interval; /* MCUs per restart, or 0 for no restart */
-  int restart_in_rows;		/* if > 0, MCU rows per restart interval */
-
-  /* Parameters controlling emission of special markers. */
-
-  boolean write_JFIF_header;	/* should a JFIF marker be written? */
-  UINT8 JFIF_major_version;	/* What to write for the JFIF version number */
-  UINT8 JFIF_minor_version;
-  /* These three values are not used by the JPEG code, merely copied */
-  /* into the JFIF APP0 marker.  density_unit can be 0 for unknown, */
-  /* 1 for dots/inch, or 2 for dots/cm.  Note that the pixel aspect */
-  /* ratio is defined by X_density/Y_density even when density_unit=0. */
-  UINT8 density_unit;		/* JFIF code for pixel size units */
-  UINT16 X_density;		/* Horizontal pixel density */
-  UINT16 Y_density;		/* Vertical pixel density */
-  boolean write_Adobe_marker;	/* should an Adobe marker be written? */
-  
-  /* State variable: index of next scanline to be written to
-   * jpeg_write_scanlines().  Application may use this to control its
-   * processing loop, e.g., "while (next_scanline < image_height)".
-   */
-
-  JDIMENSION next_scanline;	/* 0 .. image_height-1  */
-
-  /* Remaining fields are known throughout compressor, but generally
-   * should not be touched by a surrounding application.
-   */
-
-  /*
-   * These fields are computed during compression startup
-   */
-  boolean progressive_mode;	/* TRUE if scan script uses progressive mode */
-  int max_h_samp_factor;	/* largest h_samp_factor */
-  int max_v_samp_factor;	/* largest v_samp_factor */
-
-  JDIMENSION total_iMCU_rows;	/* # of iMCU rows to be input to coef ctlr */
-  /* The coefficient controller receives data in units of MCU rows as defined
-   * for fully interleaved scans (whether the JPEG file is interleaved or not).
-   * There are v_samp_factor * DCTSIZE sample rows of each component in an
-   * "iMCU" (interleaved MCU) row.
-   */
-  
-  /*
-   * These fields are valid during any one scan.
-   * They describe the components and MCUs actually appearing in the scan.
-   */
-  int comps_in_scan;		/* # of JPEG components in this scan */
-  jpeg_component_info * cur_comp_info[MAX_COMPS_IN_SCAN];
-  /* *cur_comp_info[i] describes component that appears i'th in SOS */
-  
-  JDIMENSION MCUs_per_row;	/* # of MCUs across the image */
-  JDIMENSION MCU_rows_in_scan;	/* # of MCU rows in the image */
-  
-  int blocks_in_MCU;		/* # of DCT blocks per MCU */
-  int MCU_membership[C_MAX_BLOCKS_IN_MCU];
-  /* MCU_membership[i] is index in cur_comp_info of component owning */
-  /* i'th block in an MCU */
-
-  int Ss, Se, Ah, Al;		/* progressive JPEG parameters for scan */
-
-  /*
-   * Links to compression subobjects (methods and private variables of modules)
-   */
-  struct jpeg_comp_master * master;
-  struct jpeg_c_main_controller * main;
-  struct jpeg_c_prep_controller * prep;
-  struct jpeg_c_coef_controller * coef;
-  struct jpeg_marker_writer * marker;
-  struct jpeg_color_converter * cconvert;
-  struct jpeg_downsampler * downsample;
-  struct jpeg_forward_dct * fdct;
-  struct jpeg_entropy_encoder * entropy;
-  jpeg_scan_info * script_space; /* workspace for jpeg_simple_progression */
-  int script_space_size;
-};
-
-
-/* Master record for a decompression instance */
-
-struct jpeg_decompress_struct {
-  jpeg_common_fields;		/* Fields shared with jpeg_compress_struct */
-
-  /* Source of compressed data */
-  struct jpeg_source_mgr * src;
-
-  /* Basic description of image --- filled in by jpeg_read_header(). */
-  /* Application may inspect these values to decide how to process image. */
-
-  JDIMENSION image_width;	/* nominal image width (from SOF marker) */
-  JDIMENSION image_height;	/* nominal image height */
-  int num_components;		/* # of color components in JPEG image */
-  J_COLOR_SPACE jpeg_color_space; /* colorspace of JPEG image */
-
-  /* Decompression processing parameters --- these fields must be set before
-   * calling jpeg_start_decompress().  Note that jpeg_read_header() initializes
-   * them to default values.
-   */
-
-  J_COLOR_SPACE out_color_space; /* colorspace for output */
-
-  unsigned int scale_num, scale_denom; /* fraction by which to scale image */
-
-  double output_gamma;		/* image gamma wanted in output */
-
-  boolean buffered_image;	/* TRUE=multiple output passes */
-  boolean raw_data_out;		/* TRUE=downsampled data wanted */
-
-  J_DCT_METHOD dct_method;	/* IDCT algorithm selector */
-  boolean do_fancy_upsampling;	/* TRUE=apply fancy upsampling */
-  boolean do_block_smoothing;	/* TRUE=apply interblock smoothing */
-
-  boolean quantize_colors;	/* TRUE=colormapped output wanted */
-  /* the following are ignored if not quantize_colors: */
-  J_DITHER_MODE dither_mode;	/* type of color dithering to use */
-  boolean two_pass_quantize;	/* TRUE=use two-pass color quantization */
-  int desired_number_of_colors;	/* max # colors to use in created colormap */
-  /* these are significant only in buffered-image mode: */
-  boolean enable_1pass_quant;	/* enable future use of 1-pass quantizer */
-  boolean enable_external_quant;/* enable future use of external colormap */
-  boolean enable_2pass_quant;	/* enable future use of 2-pass quantizer */
-
-  /* Description of actual output image that will be returned to application.
-   * These fields are computed by jpeg_start_decompress().
-   * You can also use jpeg_calc_output_dimensions() to determine these values
-   * in advance of calling jpeg_start_decompress().
-   */
-
-  JDIMENSION output_width;	/* scaled image width */
-  JDIMENSION output_height;	/* scaled image height */
-  int out_color_components;	/* # of color components in out_color_space */
-  int output_components;	/* # of color components returned */
-  /* output_components is 1 (a colormap index) when quantizing colors;
-   * otherwise it equals out_color_components.
-   */
-  int rec_outbuf_height;	/* min recommended height of scanline buffer */
-  /* If the buffer passed to jpeg_read_scanlines() is less than this many rows
-   * high, space and time will be wasted due to unnecessary data copying.
-   * Usually rec_outbuf_height will be 1 or 2, at most 4.
-   */
-
-  /* When quantizing colors, the output colormap is described by these fields.
-   * The application can supply a colormap by setting colormap non-NULL before
-   * calling jpeg_start_decompress; otherwise a colormap is created during
-   * jpeg_start_decompress or jpeg_start_output.
-   * The map has out_color_components rows and actual_number_of_colors columns.
-   */
-  int actual_number_of_colors;	/* number of entries in use */
-  JSAMPARRAY colormap;		/* The color map as a 2-D pixel array */
-
-  /* State variables: these variables indicate the progress of decompression.
-   * The application may examine these but must not modify them.
-   */
-
-  /* Row index of next scanline to be read from jpeg_read_scanlines().
-   * Application may use this to control its processing loop, e.g.,
-   * "while (output_scanline < output_height)".
-   */
-  JDIMENSION output_scanline;	/* 0 .. output_height-1  */
-
-  /* Current input scan number and number of iMCU rows completed in scan.
-   * These indicate the progress of the decompressor input side.
-   */
-  int input_scan_number;	/* Number of SOS markers seen so far */
-  JDIMENSION input_iMCU_row;	/* Number of iMCU rows completed */
-
-  /* The "output scan number" is the notional scan being displayed by the
-   * output side.  The decompressor will not allow output scan/row number
-   * to get ahead of input scan/row, but it can fall arbitrarily far behind.
-   */
-  int output_scan_number;	/* Nominal scan number being displayed */
-  JDIMENSION output_iMCU_row;	/* Number of iMCU rows read */
-
-  /* Current progression status.  coef_bits[c][i] indicates the precision
-   * with which component c's DCT coefficient i (in zigzag order) is known.
-   * It is -1 when no data has yet been received, otherwise it is the point
-   * transform (shift) value for the most recent scan of the coefficient
-   * (thus, 0 at completion of the progression).
-   * This pointer is NULL when reading a non-progressive file.
-   */
-  int (*coef_bits)[DCTSIZE2];	/* -1 or current Al value for each coef */
-
-  /* Internal JPEG parameters --- the application usually need not look at
-   * these fields.  Note that the decompressor output side may not use
-   * any parameters that can change between scans.
-   */
-
-  /* Quantization and Huffman tables are carried forward across input
-   * datastreams when processing abbreviated JPEG datastreams.
-   */
-
-  JTQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS];
-  /* ptrs to coefficient quantization tables, or NULL if not defined */
-
-  JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS];
-  JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS];
-  /* ptrs to Huffman coding tables, or NULL if not defined */
-
-  /* These parameters are never carried across datastreams, since they
-   * are given in SOF/SOS markers or defined to be reset by SOI.
-   */
-
-  int data_precision;		/* bits of precision in image data */
-
-  jpeg_component_info * comp_info;
-  /* comp_info[i] describes component that appears i'th in SOF */
-
-  boolean progressive_mode;	/* TRUE if SOFn specifies progressive mode */
-  boolean arith_code;		/* TRUE=arithmetic coding, FALSE=Huffman */
-
-  UINT8 arith_dc_L[NUM_ARITH_TBLS]; /* L values for DC arith-coding tables */
-  UINT8 arith_dc_U[NUM_ARITH_TBLS]; /* U values for DC arith-coding tables */
-  UINT8 arith_ac_K[NUM_ARITH_TBLS]; /* Kx values for AC arith-coding tables */
-
-  unsigned int restart_interval; /* MCUs per restart interval, or 0 for no restart */
-
-  /* These fields record data obtained from optional markers recognized by
-   * the JPEG library.
-   */
-  boolean saw_JFIF_marker;	/* TRUE iff a JFIF APP0 marker was found */
-  /* Data copied from JFIF marker; only valid if saw_JFIF_marker is TRUE: */
-  UINT8 JFIF_major_version;	/* JFIF version number */
-  UINT8 JFIF_minor_version;
-  UINT8 density_unit;		/* JFIF code for pixel size units */
-  UINT16 X_density;		/* Horizontal pixel density */
-  UINT16 Y_density;		/* Vertical pixel density */
-  boolean saw_Adobe_marker;	/* TRUE iff an Adobe APP14 marker was found */
-  UINT8 Adobe_transform;	/* Color transform code from Adobe marker */
-
-  boolean CCIR601_sampling;	/* TRUE=first samples are cosited */
-
-  /* Aside from the specific data retained from APPn markers known to the
-   * library, the uninterpreted contents of any or all APPn and COM markers
-   * can be saved in a list for examination by the application.
-   */
-  jpeg_saved_marker_ptr marker_list; /* Head of list of saved markers */
-
-  /* Remaining fields are known throughout decompressor, but generally
-   * should not be touched by a surrounding application.
-   */
-
-  /*
-   * These fields are computed during decompression startup
-   */
-  int max_h_samp_factor;	/* largest h_samp_factor */
-  int max_v_samp_factor;	/* largest v_samp_factor */
-
-  int min_DCT_scaled_size;	/* smallest DCT_scaled_size of any component */
-
-  JDIMENSION total_iMCU_rows;	/* # of iMCU rows in image */
-  /* The coefficient controller's input and output progress is measured in
-   * units of "iMCU" (interleaved MCU) rows.  These are the same as MCU rows
-   * in fully interleaved JPEG scans, but are used whether the scan is
-   * interleaved or not.  We define an iMCU row as v_samp_factor DCT block
-   * rows of each component.  Therefore, the IDCT output contains
-   * v_samp_factor*DCT_scaled_size sample rows of a component per iMCU row.
-   */
-
-  JSAMPLE * sample_range_limit; /* table for fast range-limiting */
-
-  /*
-   * These fields are valid during any one scan.
-   * They describe the components and MCUs actually appearing in the scan.
-   * Note that the decompressor output side must not use these fields.
-   */
-  int comps_in_scan;		/* # of JPEG components in this scan */
-  jpeg_component_info * cur_comp_info[MAX_COMPS_IN_SCAN];
-  /* *cur_comp_info[i] describes component that appears i'th in SOS */
-
-  JDIMENSION MCUs_per_row;	/* # of MCUs across the image */
-  JDIMENSION MCU_rows_in_scan;	/* # of MCU rows in the image */
-
-  int blocks_in_MCU;		/* # of DCT blocks per MCU */
-  int MCU_membership[D_MAX_BLOCKS_IN_MCU];
-  /* MCU_membership[i] is index in cur_comp_info of component owning */
-  /* i'th block in an MCU */
-
-  int Ss, Se, Ah, Al;		/* progressive JPEG parameters for scan */
-
-  /* This field is shared between entropy decoder and marker parser.
-   * It is either zero or the code of a JPEG marker that has been
-   * read from the data source, but has not yet been processed.
-   */
-  int unread_marker;
-
-  /*
-   * Links to decompression subobjects (methods, private variables of modules)
-   */
-  struct jpeg_decomp_master * master;
-  struct jpeg_d_main_controller * main;
-  struct jpeg_d_coef_controller * coef;
-  struct jpeg_d_post_controller * post;
-  struct jpeg_input_controller * inputctl;
-  struct jpeg_marker_reader * marker;
-  struct jpeg_entropy_decoder * entropy;
-  struct jpeg_inverse_dct * idct;
-  struct jpeg_upsampler * upsample;
-  struct jpeg_color_deconverter * cconvert;
-  struct jpeg_color_quantizer * cquantize;
-};
-
-
-/* "Object" declarations for JPEG modules that may be supplied or called
- * directly by the surrounding application.
- * As with all objects in the JPEG library, these structs only define the
- * publicly visible methods and state variables of a module.  Additional
- * private fields may exist after the public ones.
- */
-
-
-/* Error handler object */
-
-struct jpeg_error_mgr {
-  /* Error exit handler: does not return to caller */
-  JMETHOD(void, error_exit, (j_common_ptr cinfo));
-  /* Conditionally emit a trace or warning message */
-  JMETHOD(void, emit_message, (j_common_ptr cinfo, int msg_level));
-  /* Routine that actually outputs a trace or error message */
-  JMETHOD(void, output_message, (j_common_ptr cinfo));
-  /* Format a message string for the most recent JPEG error or message */
-  JMETHOD(void, format_message, (j_common_ptr cinfo, char * buffer));
-#define JMSG_LENGTH_MAX  200	/* recommended size of format_message buffer */
-  /* Reset error state variables at start of a new image */
-  JMETHOD(void, reset_error_mgr, (j_common_ptr cinfo));
-  
-  /* The message ID code and any parameters are saved here.
-   * A message can have one string parameter or up to 8 int parameters.
-   */
-  int msg_code;
-#define JMSG_STR_PARM_MAX  80
-  union {
-    int i[8];
-    char s[JMSG_STR_PARM_MAX];
-  } msg_parm;
-  
-  /* Standard state variables for error facility */
-  
-  int trace_level;		/* max msg_level that will be displayed */
-  
-  /* For recoverable corrupt-data errors, we emit a warning message,
-   * but keep going unless emit_message chooses to abort.  emit_message
-   * should count warnings in num_warnings.  The surrounding application
-   * can check for bad data by seeing if num_warnings is nonzero at the
-   * end of processing.
-   */
-  long num_warnings;		/* number of corrupt-data warnings */
-
-  /* These fields point to the table(s) of error message strings.
-   * An application can change the table pointer to switch to a different
-   * message list (typically, to change the language in which errors are
-   * reported).  Some applications may wish to add additional error codes
-   * that will be handled by the JPEG library error mechanism; the second
-   * table pointer is used for this purpose.
-   *
-   * First table includes all errors generated by JPEG library itself.
-   * Error code 0 is reserved for a "no such error string" message.
-   */
-  const char * const * jpeg_message_table; /* Library errors */
-  int last_jpeg_message;    /* Table contains strings 0..last_jpeg_message */
-  /* Second table can be added by application (see cjpeg/djpeg for example).
-   * It contains strings numbered first_addon_message..last_addon_message.
-   */
-  const char * const * addon_message_table; /* Non-library errors */
-  int first_addon_message;	/* code for first string in addon table */
-  int last_addon_message;	/* code for last string in addon table */
-};
-
-
-/* Progress monitor object */
-
-struct jpeg_progress_mgr {
-  JMETHOD(void, progress_monitor, (j_common_ptr cinfo));
-
-  long pass_counter;		/* work units completed in this pass */
-  long pass_limit;		/* total number of work units in this pass */
-  int completed_passes;		/* passes completed so far */
-  int total_passes;		/* total number of passes expected */
-};
-
-
-/* Data destination object for compression */
-
-struct jpeg_destination_mgr {
-  JOCTET * next_output_byte;	/* => next byte to write in buffer */
-  size_t free_in_buffer;	/* # of byte spaces remaining in buffer */
-
-  JMETHOD(void, init_destination, (j_compress_ptr cinfo));
-  JMETHOD(boolean, empty_output_buffer, (j_compress_ptr cinfo));
-  JMETHOD(void, term_destination, (j_compress_ptr cinfo));
-};
-
-
-/* Data source object for decompression */
-
-struct jpeg_source_mgr {
-  const JOCTET * next_input_byte; /* => next byte to read from buffer */
-  size_t bytes_in_buffer;	/* # of bytes remaining in buffer */
-
-  JMETHOD(void, init_source, (j_decompress_ptr cinfo));
-  JMETHOD(boolean, fill_input_buffer, (j_decompress_ptr cinfo));
-  JMETHOD(void, skip_input_data, (j_decompress_ptr cinfo, long num_bytes));
-  JMETHOD(boolean, resync_to_restart, (j_decompress_ptr cinfo, int desired));
-  JMETHOD(void, term_source, (j_decompress_ptr cinfo));
-};
-
-
-/* Memory manager object.
- * Allocates "small" objects (a few K total), "large" objects (tens of K),
- * and "really big" objects (virtual arrays with backing store if needed).
- * The memory manager does not allow individual objects to be freed; rather,
- * each created object is assigned to a pool, and whole pools can be freed
- * at once.  This is faster and more convenient than remembering exactly what
- * to free, especially where malloc()/free() are not too speedy.
- * NB: alloc routines never return NULL.  They exit to error_exit if not
- * successful.
- */
-
-#define JPOOL_PERMANENT	0	/* lasts until master record is destroyed */
-#define JPOOL_IMAGE	1	/* lasts until done with image/datastream */
-#define JPOOL_NUMPOOLS	2
-
-typedef struct jvirt_sarray_control * jvirt_sarray_ptr;
-typedef struct jvirt_barray_control * jvirt_barray_ptr;
-
-
-struct jpeg_memory_mgr {
-  /* Method pointers */
-  JMETHOD(void *, alloc_small, (j_common_ptr cinfo, int pool_id,
-				size_t sizeofobject));
-  JMETHOD(void FAR *, alloc_large, (j_common_ptr cinfo, int pool_id,
-				     size_t sizeofobject));
-  JMETHOD(JSAMPARRAY, alloc_sarray, (j_common_ptr cinfo, int pool_id,
-				     JDIMENSION samplesperrow,
-				     JDIMENSION numrows));
-  JMETHOD(JBLOCKARRAY, alloc_barray, (j_common_ptr cinfo, int pool_id,
-				      JDIMENSION blocksperrow,
-				      JDIMENSION numrows));
-  JMETHOD(jvirt_sarray_ptr, request_virt_sarray, (j_common_ptr cinfo,
-						  int pool_id,
-						  boolean pre_zero,
-						  JDIMENSION samplesperrow,
-						  JDIMENSION numrows,
-						  JDIMENSION maxaccess));
-  JMETHOD(jvirt_barray_ptr, request_virt_barray, (j_common_ptr cinfo,
-						  int pool_id,
-						  boolean pre_zero,
-						  JDIMENSION blocksperrow,
-						  JDIMENSION numrows,
-						  JDIMENSION maxaccess));
-  JMETHOD(void, realize_virt_arrays, (j_common_ptr cinfo));
-  JMETHOD(JSAMPARRAY, access_virt_sarray, (j_common_ptr cinfo,
-					   jvirt_sarray_ptr ptr,
-					   JDIMENSION start_row,
-					   JDIMENSION num_rows,
-					   boolean writable));
-  JMETHOD(JBLOCKARRAY, access_virt_barray, (j_common_ptr cinfo,
-					    jvirt_barray_ptr ptr,
-					    JDIMENSION start_row,
-					    JDIMENSION num_rows,
-					    boolean writable));
-  JMETHOD(void, free_pool, (j_common_ptr cinfo, int pool_id));
-  JMETHOD(void, self_destruct, (j_common_ptr cinfo));
-
-  /* Limit on memory allocation for this JPEG object.  (Note that this is
-   * merely advisory, not a guaranteed maximum; it only affects the space
-   * used for virtual-array buffers.)  May be changed by outer application
-   * after creating the JPEG object.
-   */
-  long max_memory_to_use;
-
-  /* Maximum allocation request accepted by alloc_large. */
-  long max_alloc_chunk;
-};
-
-
-/* Routine signature for application-supplied marker processing methods.
- * Need not pass marker code since it is stored in cinfo->unread_marker.
- */
-typedef JMETHOD(boolean, jpeg_marker_parser_method, (j_decompress_ptr cinfo));
-
-
-/* Declarations for routines called by application.
- * The JPP macro hides prototype parameters from compilers that can't cope.
- * Note JPP requires double parentheses.
- */
-
-#ifdef HAVE_PROTOTYPES
-#define JPP(arglist)	arglist
-#else
-#define JPP(arglist)	()
-#endif
-
-
-/* Short forms of external names for systems with brain-damaged linkers.
- * We shorten external names to be unique in the first six letters, which
- * is good enough for all known systems.
- * (If your compiler itself needs names to be unique in less than 15 
- * characters, you are out of luck.  Get a better compiler.)
- */
-
-#ifdef NEED_SHORT_EXTERNAL_NAMES
-#define jpeg_std_error		jStdError
-#define jpeg_CreateCompress	jCreaCompress
-#define jpeg_CreateDecompress	jCreaDecompress
-#define jpeg_destroy_compress	jDestCompress
-#define jpeg_destroy_decompress	jDestDecompress
-#define jpeg_stdio_dest		jStdDest
-#define jpeg_stdio_src		jStdSrc
-#define jpeg_set_defaults	jSetDefaults
-#define jpeg_set_colorspace	jSetColorspace
-#define jpeg_default_colorspace	jDefColorspace
-#define jpeg_set_quality	jSetQuality
-#define jpeg_set_linear_quality	jSetLQuality
-#define jpeg_add_quant_table	jAddQuantTable
-#define jpeg_quality_scaling	jQualityScaling
-#define jpeg_simple_progression	jSimProgress
-#define jpeg_suppress_tables	jSuppressTables
-#define jpeg_alloc_quant_table	jAlcTQTable
-#define jpeg_alloc_huff_table	jAlcHTable
-#define jpeg_start_compress	jStrtCompress
-#define jpeg_write_scanlines	jWrtScanlines
-#define jpeg_finish_compress	jFinCompress
-#define jpeg_write_raw_data	jWrtRawData
-#define jpeg_write_marker	jWrtMarker
-#define jpeg_write_m_header	jWrtMHeader
-#define jpeg_write_m_byte	jWrtMByte
-#define jpeg_write_tables	jWrtTables
-#define jpeg_read_header	jReadHeader
-#define jpeg_start_decompress	jStrtDecompress
-#define jpeg_read_scanlines	jReadScanlines
-#define jpeg_finish_decompress	jFinDecompress
-#define jpeg_read_raw_data	jReadRawData
-#define jpeg_has_multiple_scans	jHasMultScn
-#define jpeg_start_output	jStrtOutput
-#define jpeg_finish_output	jFinOutput
-#define jpeg_input_complete	jInComplete
-#define jpeg_new_colormap	jNewCMap
-#define jpeg_consume_input	jConsumeInput
-#define jpeg_calc_output_dimensions	jCalcDimensions
-#define jpeg_save_markers	jSaveMarkers
-#define jpeg_set_marker_processor	jSetMarker
-#define jpeg_read_coefficients	jReadCoefs
-#define jpeg_write_coefficients	jWrtCoefs
-#define jpeg_copy_critical_parameters	jCopyCrit
-#define jpeg_abort_compress	jAbrtCompress
-#define jpeg_abort_decompress	jAbrtDecompress
-#define jpeg_abort		jAbort
-#define jpeg_destroy		jDestroy
-#define jpeg_resync_to_restart	jResyncRestart
-#endif /* NEED_SHORT_EXTERNAL_NAMES */
-
-
-/* Default error-management setup */
-EXTERN(struct jpeg_error_mgr *) jpeg_std_error
-	JPP((struct jpeg_error_mgr * err));
-
-/* Initialization of JPEG compression objects.
- * jpeg_create_compress() and jpeg_create_decompress() are the exported
- * names that applications should call.  These expand to calls on
- * jpeg_CreateCompress and jpeg_CreateDecompress with additional information
- * passed for version mismatch checking.
- * NB: you must set up the error-manager BEFORE calling jpeg_create_xxx.
- */
-#define jpeg_create_compress(cinfo) \
-    jpeg_CreateCompress((cinfo), JPEG_LIB_VERSION, \
-			(size_t) sizeof(struct jpeg_compress_struct))
-#define jpeg_create_decompress(cinfo) \
-    jpeg_CreateDecompress((cinfo), JPEG_LIB_VERSION, \
-			  (size_t) sizeof(struct jpeg_decompress_struct))
-EXTERN(void) jpeg_CreateCompress JPP((j_compress_ptr cinfo,
-				      int version, size_t structsize));
-EXTERN(void) jpeg_CreateDecompress JPP((j_decompress_ptr cinfo,
-					int version, size_t structsize));
-/* Destruction of JPEG compression objects */
-EXTERN(void) jpeg_destroy_compress JPP((j_compress_ptr cinfo));
-EXTERN(void) jpeg_destroy_decompress JPP((j_decompress_ptr cinfo));
-
-/* Standard data source and destination managers: stdio streams. */
-/* Caller is responsible for opening the file before and closing after. */
-EXTERN(void) jpeg_stdio_dest JPP((j_compress_ptr cinfo, FILE * outfile));
-EXTERN(void) jpeg_stdio_src JPP((j_decompress_ptr cinfo, FILE * infile));
-
-/* Default parameter setup for compression */
-EXTERN(void) jpeg_set_defaults JPP((j_compress_ptr cinfo));
-/* Compression parameter setup aids */
-EXTERN(void) jpeg_set_colorspace JPP((j_compress_ptr cinfo,
-				      J_COLOR_SPACE colorspace));
-EXTERN(void) jpeg_default_colorspace JPP((j_compress_ptr cinfo));
-EXTERN(void) jpeg_set_quality JPP((j_compress_ptr cinfo, int quality,
-				   boolean force_baseline));
-EXTERN(void) jpeg_set_linear_quality JPP((j_compress_ptr cinfo,
-					  int scale_factor,
-					  boolean force_baseline));
-EXTERN(void) jpeg_add_quant_table JPP((j_compress_ptr cinfo, int which_tbl,
-				       const unsigned int *basic_table,
-				       int scale_factor,
-				       boolean force_baseline));
-EXTERN(int) jpeg_quality_scaling JPP((int quality));
-EXTERN(void) jpeg_simple_progression JPP((j_compress_ptr cinfo));
-EXTERN(void) jpeg_suppress_tables JPP((j_compress_ptr cinfo,
-				       boolean suppress));
-EXTERN(JTQUANT_TBL *) jpeg_alloc_quant_table JPP((j_common_ptr cinfo));
-EXTERN(JHUFF_TBL *) jpeg_alloc_huff_table JPP((j_common_ptr cinfo));
-
-/* Main entry points for compression */
-EXTERN(void) jpeg_start_compress JPP((j_compress_ptr cinfo,
-				      boolean write_all_tables));
-EXTERN(JDIMENSION) jpeg_write_scanlines JPP((j_compress_ptr cinfo,
-					     JSAMPARRAY scanlines,
-					     JDIMENSION num_lines));
-EXTERN(void) jpeg_finish_compress JPP((j_compress_ptr cinfo));
-
-/* Replaces jpeg_write_scanlines when writing raw downsampled data. */
-EXTERN(JDIMENSION) jpeg_write_raw_data JPP((j_compress_ptr cinfo,
-					    JSAMPIMAGE data,
-					    JDIMENSION num_lines));
-
-/* Write a special marker.  See libjpeg.doc concerning safe usage. */
-EXTERN(void) jpeg_write_marker
-	JPP((j_compress_ptr cinfo, int marker,
-	     const JOCTET * dataptr, unsigned int datalen));
-/* Same, but piecemeal. */
-EXTERN(void) jpeg_write_m_header
-	JPP((j_compress_ptr cinfo, int marker, unsigned int datalen));
-EXTERN(void) jpeg_write_m_byte
-	JPP((j_compress_ptr cinfo, int val));
-
-/* Alternate compression function: just write an abbreviated table file */
-EXTERN(void) jpeg_write_tables JPP((j_compress_ptr cinfo));
-
-/* Decompression startup: read start of JPEG datastream to see what's there */
-EXTERN(int) jpeg_read_header JPP((j_decompress_ptr cinfo,
-				  boolean require_image));
-/* Return value is one of: */
-#define JPEG_SUSPENDED		0 /* Suspended due to lack of input data */
-#define JPEG_HEADER_OK		1 /* Found valid image datastream */
-#define JPEG_HEADER_TABLES_ONLY	2 /* Found valid table-specs-only datastream */
-/* If you pass require_image = TRUE (normal case), you need not check for
- * a TABLES_ONLY return code; an abbreviated file will cause an error exit.
- * JPEG_SUSPENDED is only possible if you use a data source module that can
- * give a suspension return (the stdio source module doesn't).
- */
-
-/* Main entry points for decompression */
-EXTERN(boolean) jpeg_start_decompress JPP((j_decompress_ptr cinfo));
-EXTERN(JDIMENSION) jpeg_read_scanlines JPP((j_decompress_ptr cinfo,
-					    JSAMPARRAY scanlines,
-					    JDIMENSION max_lines));
-EXTERN(boolean) jpeg_finish_decompress JPP((j_decompress_ptr cinfo));
-
-/* Replaces jpeg_read_scanlines when reading raw downsampled data. */
-EXTERN(JDIMENSION) jpeg_read_raw_data JPP((j_decompress_ptr cinfo,
-					   JSAMPIMAGE data,
-					   JDIMENSION max_lines));
-
-/* Additional entry points for buffered-image mode. */
-EXTERN(boolean) jpeg_has_multiple_scans JPP((j_decompress_ptr cinfo));
-EXTERN(boolean) jpeg_start_output JPP((j_decompress_ptr cinfo,
-				       int scan_number));
-EXTERN(boolean) jpeg_finish_output JPP((j_decompress_ptr cinfo));
-EXTERN(boolean) jpeg_input_complete JPP((j_decompress_ptr cinfo));
-EXTERN(void) jpeg_new_colormap JPP((j_decompress_ptr cinfo));
-EXTERN(int) jpeg_consume_input JPP((j_decompress_ptr cinfo));
-/* Return value is one of: */
-/* #define JPEG_SUSPENDED	0    Suspended due to lack of input data */
-#define JPEG_REACHED_SOS	1 /* Reached start of new scan */
-#define JPEG_REACHED_EOI	2 /* Reached end of image */
-#define JPEG_ROW_COMPLETED	3 /* Completed one iMCU row */
-#define JPEG_SCAN_COMPLETED	4 /* Completed last iMCU row of a scan */
-
-/* Precalculate output dimensions for current decompression parameters. */
-EXTERN(void) jpeg_calc_output_dimensions JPP((j_decompress_ptr cinfo));
-
-/* Control saving of COM and APPn markers into marker_list. */
-EXTERN(void) jpeg_save_markers
-	JPP((j_decompress_ptr cinfo, int marker_code,
-	     unsigned int length_limit));
-
-/* Install a special processing method for COM or APPn markers. */
-EXTERN(void) jpeg_set_marker_processor
-	JPP((j_decompress_ptr cinfo, int marker_code,
-	     jpeg_marker_parser_method routine));
-
-/* Read or write raw DCT coefficients --- useful for lossless transcoding. */
-EXTERN(jvirt_barray_ptr *) jpeg_read_coefficients JPP((j_decompress_ptr cinfo));
-EXTERN(void) jpeg_write_coefficients JPP((j_compress_ptr cinfo,
-					  jvirt_barray_ptr * coef_arrays));
-EXTERN(void) jpeg_copy_critical_parameters JPP((j_decompress_ptr srcinfo,
-						j_compress_ptr dstinfo));
-
-/* If you choose to abort compression or decompression before completing
- * jpeg_finish_(de)compress, then you need to clean up to release memory,
- * temporary files, etc.  You can just call jpeg_destroy_(de)compress
- * if you're done with the JPEG object, but if you want to clean it up and
- * reuse it, call this:
- */
-EXTERN(void) jpeg_abort_compress JPP((j_compress_ptr cinfo));
-EXTERN(void) jpeg_abort_decompress JPP((j_decompress_ptr cinfo));
-
-/* Generic versions of jpeg_abort and jpeg_destroy that work on either
- * flavor of JPEG object.  These may be more convenient in some places.
- */
-EXTERN(void) jpeg_abort JPP((j_common_ptr cinfo));
-EXTERN(void) jpeg_destroy JPP((j_common_ptr cinfo));
-
-/* Default restart-marker-resync procedure for use by data source modules */
-EXTERN(boolean) jpeg_resync_to_restart JPP((j_decompress_ptr cinfo,
-					    int desired));
-
-
-/* These marker codes are exported since applications and data source modules
- * are likely to want to use them.
- */
-
-#define JPEG_RST0	0xD0	/* RST0 marker code */
-#define JPEG_EOI	0xD9	/* EOI marker code */
-#define JPEG_APP0	0xE0	/* APP0 marker code */
-#define JPEG_COM	0xFE	/* COM marker code */
-
-
-/* If we have a brain-damaged compiler that emits warnings (or worse, errors)
- * for structure definitions that are never filled in, keep it tquiet by
- * supplying dummy definitions for the various substructures.
- */
-
-#ifdef INCOMPLETE_TYPES_BROKEN
-#ifndef JPEG_INTERNALS		/* will be defined in jpegint.h */
-struct jvirt_sarray_control { long dummy; };
-struct jvirt_barray_control { long dummy; };
-struct jpeg_comp_master { long dummy; };
-struct jpeg_c_main_controller { long dummy; };
-struct jpeg_c_prep_controller { long dummy; };
-struct jpeg_c_coef_controller { long dummy; };
-struct jpeg_marker_writer { long dummy; };
-struct jpeg_color_converter { long dummy; };
-struct jpeg_downsampler { long dummy; };
-struct jpeg_forward_dct { long dummy; };
-struct jpeg_entropy_encoder { long dummy; };
-struct jpeg_decomp_master { long dummy; };
-struct jpeg_d_main_controller { long dummy; };
-struct jpeg_d_coef_controller { long dummy; };
-struct jpeg_d_post_controller { long dummy; };
-struct jpeg_input_controller { long dummy; };
-struct jpeg_marker_reader { long dummy; };
-struct jpeg_entropy_decoder { long dummy; };
-struct jpeg_inverse_dct { long dummy; };
-struct jpeg_upsampler { long dummy; };
-struct jpeg_color_deconverter { long dummy; };
-struct jpeg_color_quantizer { long dummy; };
-#endif /* JPEG_INTERNALS */
-#endif /* INCOMPLETE_TYPES_BROKEN */
-
-
-/*
- * The JPEG library modules define JPEG_INTERNALS before including this file.
- * The internal structure declarations are read only when that is true.
- * Applications using the library should not include jpegint.h, but may wish
- * to include jerror.h.
- */
-
-#ifdef JPEG_INTERNALS
-#include "jpegint.h"		/* fetch private declarations */
-#include "jerror.h"		/* fetch error codes too */
-#endif
-
-#endif /* JPEGLIB_H */
diff --git a/src/3rdparty/libjpeg/jquant1.c b/src/3rdparty/libjpeg/jquant1.c
deleted file mode 100644
index 89fbf7497..000000000
--- a/src/3rdparty/libjpeg/jquant1.c
+++ /dev/null
@@ -1,856 +0,0 @@
-/*
- * jquant1.c
- *
- * Copyright (C) 1991-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains 1-pass color quantization (color mapping) routines.
- * These routines provide mapping to a fixed color map using equally spaced
- * color values.  Optional Floyd-Steinberg or ordered dithering is available.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-#ifdef TQUANT_1PASS_SUPPORTED
-
-
-/*
- * The main purpose of 1-pass quantization is to provide a fast, if not very
- * high quality, colormapped output capability.  A 2-pass quantizer usually
- * gives better visual quality; however, for quantized grayscale output this
- * quantizer is perfectly adequate.  Dithering is highly recommended with this
- * quantizer, though you can turn it off if you really want to.
- *
- * In 1-pass quantization the colormap must be chosen in advance of seeing the
- * image.  We use a map consisting of all combinations of Ncolors[i] color
- * values for the i'th component.  The Ncolors[] values are chosen so that
- * their product, the total number of colors, is no more than that requested.
- * (In most cases, the product will be somewhat less.)
- *
- * Since the colormap is orthogonal, the representative value for each color
- * component can be determined without considering the other components;
- * then these indexes can be combined into a colormap index by a standard
- * N-dimensional-array-subscript calculation.  Most of the arithmetic involved
- * can be precalculated and stored in the lookup table colorindex[].
- * colorindex[i][j] maps pixel value j in component i to the nearest
- * representative value (grid plane) for that component; this index is
- * multiplied by the array stride for component i, so that the
- * index of the colormap entry closest to a given pixel value is just
- *    sum( colorindex[component-number][pixel-component-value] )
- * Aside from being fast, this scheme allows for variable spacing between
- * representative values with no additional lookup cost.
- *
- * If gamma correction has been applied in color conversion, it might be wise
- * to adjust the color grid spacing so that the representative colors are
- * etquidistant in linear space.  At this writing, gamma correction is not
- * implemented by jdcolor, so nothing is done here.
- */
-
-
-/* Declarations for ordered dithering.
- *
- * We use a standard 16x16 ordered dither array.  The basic concept of ordered
- * dithering is described in many references, for instance Dale Schumacher's
- * chapter II.2 of Graphics Gems II (James Arvo, ed. Academic Press, 1991).
- * In place of Schumacher's comparisons against a "threshold" value, we add a
- * "dither" value to the input pixel and then round the result to the nearest
- * output value.  The dither value is equivalent to (0.5 - threshold) times
- * the distance between output values.  For ordered dithering, we assume that
- * the output colors are equally spaced; if not, results will probably be
- * worse, since the dither may be too much or too little at a given point.
- *
- * The normal calculation would be to form pixel value + dither, range-limit
- * this to 0..MAXJSAMPLE, and then index into the colorindex table as usual.
- * We can skip the separate range-limiting step by extending the colorindex
- * table in both directions.
- */
-
-#define ODITHER_SIZE  16	/* dimension of dither matrix */
-/* NB: if ODITHER_SIZE is not a power of 2, ODITHER_MASK uses will break */
-#define ODITHER_CELLS (ODITHER_SIZE*ODITHER_SIZE)	/* # cells in matrix */
-#define ODITHER_MASK  (ODITHER_SIZE-1) /* mask for wrapping around counters */
-
-typedef int ODITHER_MATRIX[ODITHER_SIZE][ODITHER_SIZE];
-typedef int (*ODITHER_MATRIX_PTR)[ODITHER_SIZE];
-
-static const UINT8 base_dither_matrix[ODITHER_SIZE][ODITHER_SIZE] = {
-  /* Bayer's order-4 dither array.  Generated by the code given in
-   * Stephen Hawley's article "Ordered Dithering" in Graphics Gems I.
-   * The values in this array must range from 0 to ODITHER_CELLS-1.
-   */
-  {   0,192, 48,240, 12,204, 60,252,  3,195, 51,243, 15,207, 63,255 },
-  { 128, 64,176,112,140, 76,188,124,131, 67,179,115,143, 79,191,127 },
-  {  32,224, 16,208, 44,236, 28,220, 35,227, 19,211, 47,239, 31,223 },
-  { 160, 96,144, 80,172,108,156, 92,163, 99,147, 83,175,111,159, 95 },
-  {   8,200, 56,248,  4,196, 52,244, 11,203, 59,251,  7,199, 55,247 },
-  { 136, 72,184,120,132, 68,180,116,139, 75,187,123,135, 71,183,119 },
-  {  40,232, 24,216, 36,228, 20,212, 43,235, 27,219, 39,231, 23,215 },
-  { 168,104,152, 88,164,100,148, 84,171,107,155, 91,167,103,151, 87 },
-  {   2,194, 50,242, 14,206, 62,254,  1,193, 49,241, 13,205, 61,253 },
-  { 130, 66,178,114,142, 78,190,126,129, 65,177,113,141, 77,189,125 },
-  {  34,226, 18,210, 46,238, 30,222, 33,225, 17,209, 45,237, 29,221 },
-  { 162, 98,146, 82,174,110,158, 94,161, 97,145, 81,173,109,157, 93 },
-  {  10,202, 58,250,  6,198, 54,246,  9,201, 57,249,  5,197, 53,245 },
-  { 138, 74,186,122,134, 70,182,118,137, 73,185,121,133, 69,181,117 },
-  {  42,234, 26,218, 38,230, 22,214, 41,233, 25,217, 37,229, 21,213 },
-  { 170,106,154, 90,166,102,150, 86,169,105,153, 89,165,101,149, 85 }
-};
-
-
-/* Declarations for Floyd-Steinberg dithering.
- *
- * Errors are accumulated into the array fserrors[], at a resolution of
- * 1/16th of a pixel count.  The error at a given pixel is propagated
- * to its not-yet-processed neighbors using the standard F-S fractions,
- *		...	(here)	7/16
- *		3/16	5/16	1/16
- * We work left-to-right on even rows, right-to-left on odd rows.
- *
- * We can get away with a single array (holding one row's worth of errors)
- * by using it to store the current row's errors at pixel columns not yet
- * processed, but the next row's errors at columns already processed.  We
- * need only a few extra variables to hold the errors immediately around the
- * current column.  (If we are lucky, those variables are in registers, but
- * even if not, they're probably cheaper to access than array elements are.)
- *
- * The fserrors[] array is indexed [component#][position].
- * We provide (#columns + 2) entries per component; the extra entry at each
- * end saves us from special-casing the first and last pixels.
- *
- * Note: on a wide image, we might not have enough room in a PC's near data
- * segment to hold the error array; so it is allocated with alloc_large.
- */
-
-#if BITS_IN_JSAMPLE == 8
-typedef INT16 FSERROR;		/* 16 bits should be enough */
-typedef int LOCFSERROR;		/* use 'int' for calculation temps */
-#else
-typedef INT32 FSERROR;		/* may need more than 16 bits */
-typedef INT32 LOCFSERROR;	/* be sure calculation temps are big enough */
-#endif
-
-typedef FSERROR FAR *FSERRPTR;	/* pointer to error array (in FAR storage!) */
-
-
-/* Private subobject */
-
-#define MAX_Q_COMPS 4		/* max components I can handle */
-
-typedef struct {
-  struct jpeg_color_quantizer pub; /* public fields */
-
-  /* Initially allocated colormap is saved here */
-  JSAMPARRAY sv_colormap;	/* The color map as a 2-D pixel array */
-  int sv_actual;		/* number of entries in use */
-
-  JSAMPARRAY colorindex;	/* Precomputed mapping for speed */
-  /* colorindex[i][j] = index of color closest to pixel value j in component i,
-   * premultiplied as described above.  Since colormap indexes must fit into
-   * JSAMPLEs, the entries of this array will too.
-   */
-  boolean is_padded;		/* is the colorindex padded for odither? */
-
-  int Ncolors[MAX_Q_COMPS];	/* # of values alloced to each component */
-
-  /* Variables for ordered dithering */
-  int row_index;		/* cur row's vertical index in dither matrix */
-  ODITHER_MATRIX_PTR odither[MAX_Q_COMPS]; /* one dither array per component */
-
-  /* Variables for Floyd-Steinberg dithering */
-  FSERRPTR fserrors[MAX_Q_COMPS]; /* accumulated errors */
-  boolean on_odd_row;		/* flag to remember which row we are on */
-} my_cquantizer;
-
-typedef my_cquantizer * my_cquantize_ptr;
-
-
-/*
- * Policy-making subroutines for create_colormap and create_colorindex.
- * These routines determine the colormap to be used.  The rest of the module
- * only assumes that the colormap is orthogonal.
- *
- *  * select_ncolors decides how to divvy up the available colors
- *    among the components.
- *  * output_value defines the set of representative values for a component.
- *  * largest_input_value defines the mapping from input values to
- *    representative values for a component.
- * Note that the latter two routines may impose different policies for
- * different components, though this is not currently done.
- */
-
-
-LOCAL(int)
-select_ncolors (j_decompress_ptr cinfo, int Ncolors[])
-/* Determine allocation of desired colors to components, */
-/* and fill in Ncolors[] array to indicate choice. */
-/* Return value is total number of colors (product of Ncolors[] values). */
-{
-  int nc = cinfo->out_color_components; /* number of color components */
-  int max_colors = cinfo->desired_number_of_colors;
-  int total_colors, iroot, i, j;
-  boolean changed;
-  long temp;
-  static const int RGB_order[3] = { RGB_GREEN, RGB_RED, RGB_BLUE };
-
-  /* We can allocate at least the nc'th root of max_colors per component. */
-  /* Compute floor(nc'th root of max_colors). */
-  iroot = 1;
-  do {
-    iroot++;
-    temp = iroot;		/* set temp = iroot ** nc */
-    for (i = 1; i < nc; i++)
-      temp *= iroot;
-  } while (temp <= (long) max_colors); /* repeat till iroot exceeds root */
-  iroot--;			/* now iroot = floor(root) */
-
-  /* Must have at least 2 color values per component */
-  if (iroot < 2)
-    ERREXIT1(cinfo, JERR_QUANT_FEW_COLORS, (int) temp);
-
-  /* Initialize to iroot color values for each component */
-  total_colors = 1;
-  for (i = 0; i < nc; i++) {
-    Ncolors[i] = iroot;
-    total_colors *= iroot;
-  }
-  /* We may be able to increment the count for one or more components without
-   * exceeding max_colors, though we know not all can be incremented.
-   * Sometimes, the first component can be incremented more than once!
-   * (Example: for 16 colors, we start at 2*2*2, go to 3*2*2, then 4*2*2.)
-   * In RGB colorspace, try to increment G first, then R, then B.
-   */
-  do {
-    changed = FALSE;
-    for (i = 0; i < nc; i++) {
-      j = (cinfo->out_color_space == JCS_RGB ? RGB_order[i] : i);
-      /* calculate new total_colors if Ncolors[j] is incremented */
-      temp = total_colors / Ncolors[j];
-      temp *= Ncolors[j]+1;	/* done in long arith to avoid oflo */
-      if (temp > (long) max_colors)
-	break;			/* won't fit, done with this pass */
-      Ncolors[j]++;		/* OK, apply the increment */
-      total_colors = (int) temp;
-      changed = TRUE;
-    }
-  } while (changed);
-
-  return total_colors;
-}
-
-
-LOCAL(int)
-output_value (j_decompress_ptr cinfo, int ci, int j, int maxj)
-/* Return j'th output value, where j will range from 0 to maxj */
-/* The output values must fall in 0..MAXJSAMPLE in increasing order */
-{
-  /* We always provide values 0 and MAXJSAMPLE for each component;
-   * any additional values are equally spaced between these limits.
-   * (Forcing the upper and lower values to the limits ensures that
-   * dithering can't produce a color outside the selected gamut.)
-   */
-  return (int) (((INT32) j * MAXJSAMPLE + maxj/2) / maxj);
-}
-
-
-LOCAL(int)
-largest_input_value (j_decompress_ptr cinfo, int ci, int j, int maxj)
-/* Return largest input value that should map to j'th output value */
-/* Must have largest(j=0) >= 0, and largest(j=maxj) >= MAXJSAMPLE */
-{
-  /* Breakpoints are halfway between values returned by output_value */
-  return (int) (((INT32) (2*j + 1) * MAXJSAMPLE + maxj) / (2*maxj));
-}
-
-
-/*
- * Create the colormap.
- */
-
-LOCAL(void)
-create_colormap (j_decompress_ptr cinfo)
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  JSAMPARRAY colormap;		/* Created colormap */
-  int total_colors;		/* Number of distinct output colors */
-  int i,j,k, nci, blksize, blkdist, ptr, val;
-
-  /* Select number of colors for each component */
-  total_colors = select_ncolors(cinfo, cquantize->Ncolors);
-
-  /* Report selected color counts */
-  if (cinfo->out_color_components == 3)
-    TRACEMS4(cinfo, 1, JTRC_QUANT_3_NCOLORS,
-	     total_colors, cquantize->Ncolors[0],
-	     cquantize->Ncolors[1], cquantize->Ncolors[2]);
-  else
-    TRACEMS1(cinfo, 1, JTRC_QUANT_NCOLORS, total_colors);
-
-  /* Allocate and fill in the colormap. */
-  /* The colors are ordered in the map in standard row-major order, */
-  /* i.e. rightmost (highest-indexed) color changes most rapidly. */
-
-  colormap = (*cinfo->mem->alloc_sarray)
-    ((j_common_ptr) cinfo, JPOOL_IMAGE,
-     (JDIMENSION) total_colors, (JDIMENSION) cinfo->out_color_components);
-
-  /* blksize is number of adjacent repeated entries for a component */
-  /* blkdist is distance between groups of identical entries for a component */
-  blkdist = total_colors;
-
-  for (i = 0; i < cinfo->out_color_components; i++) {
-    /* fill in colormap entries for i'th color component */
-    nci = cquantize->Ncolors[i]; /* # of distinct values for this color */
-    blksize = blkdist / nci;
-    for (j = 0; j < nci; j++) {
-      /* Compute j'th output value (out of nci) for component */
-      val = output_value(cinfo, i, j, nci-1);
-      /* Fill in all colormap entries that have this value of this component */
-      for (ptr = j * blksize; ptr < total_colors; ptr += blkdist) {
-	/* fill in blksize entries beginning at ptr */
-	for (k = 0; k < blksize; k++)
-	  colormap[i][ptr+k] = (JSAMPLE) val;
-      }
-    }
-    blkdist = blksize;		/* blksize of this color is blkdist of next */
-  }
-
-  /* Save the colormap in private storage,
-   * where it will survive color quantization mode changes.
-   */
-  cquantize->sv_colormap = colormap;
-  cquantize->sv_actual = total_colors;
-}
-
-
-/*
- * Create the color index table.
- */
-
-LOCAL(void)
-create_colorindex (j_decompress_ptr cinfo)
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  JSAMPROW indexptr;
-  int i,j,k, nci, blksize, val, pad;
-
-  /* For ordered dither, we pad the color index tables by MAXJSAMPLE in
-   * each direction (input index values can be -MAXJSAMPLE .. 2*MAXJSAMPLE).
-   * This is not necessary in the other dithering modes.  However, we
-   * flag whether it was done in case user changes dithering mode.
-   */
-  if (cinfo->dither_mode == JDITHER_ORDERED) {
-    pad = MAXJSAMPLE*2;
-    cquantize->is_padded = TRUE;
-  } else {
-    pad = 0;
-    cquantize->is_padded = FALSE;
-  }
-
-  cquantize->colorindex = (*cinfo->mem->alloc_sarray)
-    ((j_common_ptr) cinfo, JPOOL_IMAGE,
-     (JDIMENSION) (MAXJSAMPLE+1 + pad),
-     (JDIMENSION) cinfo->out_color_components);
-
-  /* blksize is number of adjacent repeated entries for a component */
-  blksize = cquantize->sv_actual;
-
-  for (i = 0; i < cinfo->out_color_components; i++) {
-    /* fill in colorindex entries for i'th color component */
-    nci = cquantize->Ncolors[i]; /* # of distinct values for this color */
-    blksize = blksize / nci;
-
-    /* adjust colorindex pointers to provide padding at negative indexes. */
-    if (pad)
-      cquantize->colorindex[i] += MAXJSAMPLE;
-
-    /* in loop, val = index of current output value, */
-    /* and k = largest j that maps to current val */
-    indexptr = cquantize->colorindex[i];
-    val = 0;
-    k = largest_input_value(cinfo, i, 0, nci-1);
-    for (j = 0; j <= MAXJSAMPLE; j++) {
-      while (j > k)		/* advance val if past boundary */
-	k = largest_input_value(cinfo, i, ++val, nci-1);
-      /* premultiply so that no multiplication needed in main processing */
-      indexptr[j] = (JSAMPLE) (val * blksize);
-    }
-    /* Pad at both ends if necessary */
-    if (pad)
-      for (j = 1; j <= MAXJSAMPLE; j++) {
-	indexptr[-j] = indexptr[0];
-	indexptr[MAXJSAMPLE+j] = indexptr[MAXJSAMPLE];
-      }
-  }
-}
-
-
-/*
- * Create an ordered-dither array for a component having ncolors
- * distinct output values.
- */
-
-LOCAL(ODITHER_MATRIX_PTR)
-make_odither_array (j_decompress_ptr cinfo, int ncolors)
-{
-  ODITHER_MATRIX_PTR odither;
-  int j,k;
-  INT32 num,den;
-
-  odither = (ODITHER_MATRIX_PTR)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(ODITHER_MATRIX));
-  /* The inter-value distance for this color is MAXJSAMPLE/(ncolors-1).
-   * Hence the dither value for the matrix cell with fill order f
-   * (f=0..N-1) should be (N-1-2*f)/(2*N) * MAXJSAMPLE/(ncolors-1).
-   * On 16-bit-int machine, be careful to avoid overflow.
-   */
-  den = 2 * ODITHER_CELLS * ((INT32) (ncolors - 1));
-  for (j = 0; j < ODITHER_SIZE; j++) {
-    for (k = 0; k < ODITHER_SIZE; k++) {
-      num = ((INT32) (ODITHER_CELLS-1 - 2*((int)base_dither_matrix[j][k])))
-	    * MAXJSAMPLE;
-      /* Ensure round towards zero despite C's lack of consistency
-       * about rounding negative values in integer division...
-       */
-      odither[j][k] = (int) (num<0 ? -((-num)/den) : num/den);
-    }
-  }
-  return odither;
-}
-
-
-/*
- * Create the ordered-dither tables.
- * Components having the same number of representative colors may 
- * share a dither table.
- */
-
-LOCAL(void)
-create_odither_tables (j_decompress_ptr cinfo)
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  ODITHER_MATRIX_PTR odither;
-  int i, j, nci;
-
-  for (i = 0; i < cinfo->out_color_components; i++) {
-    nci = cquantize->Ncolors[i]; /* # of distinct values for this color */
-    odither = NULL;		/* search for matching prior component */
-    for (j = 0; j < i; j++) {
-      if (nci == cquantize->Ncolors[j]) {
-	odither = cquantize->odither[j];
-	break;
-      }
-    }
-    if (odither == NULL)	/* need a new table? */
-      odither = make_odither_array(cinfo, nci);
-    cquantize->odither[i] = odither;
-  }
-}
-
-
-/*
- * Map some rows of pixels to the output colormapped representation.
- */
-
-METHODDEF(void)
-color_quantize (j_decompress_ptr cinfo, JSAMPARRAY input_buf,
-		JSAMPARRAY output_buf, int num_rows)
-/* General case, no dithering */
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  JSAMPARRAY colorindex = cquantize->colorindex;
-  register int pixcode, ci;
-  register JSAMPROW ptrin, ptrout;
-  int row;
-  JDIMENSION col;
-  JDIMENSION width = cinfo->output_width;
-  register int nc = cinfo->out_color_components;
-
-  for (row = 0; row < num_rows; row++) {
-    ptrin = input_buf[row];
-    ptrout = output_buf[row];
-    for (col = width; col > 0; col--) {
-      pixcode = 0;
-      for (ci = 0; ci < nc; ci++) {
-	pixcode += GETJSAMPLE(colorindex[ci][GETJSAMPLE(*ptrin++)]);
-      }
-      *ptrout++ = (JSAMPLE) pixcode;
-    }
-  }
-}
-
-
-METHODDEF(void)
-color_quantize3 (j_decompress_ptr cinfo, JSAMPARRAY input_buf,
-		 JSAMPARRAY output_buf, int num_rows)
-/* Fast path for out_color_components==3, no dithering */
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  register int pixcode;
-  register JSAMPROW ptrin, ptrout;
-  JSAMPROW colorindex0 = cquantize->colorindex[0];
-  JSAMPROW colorindex1 = cquantize->colorindex[1];
-  JSAMPROW colorindex2 = cquantize->colorindex[2];
-  int row;
-  JDIMENSION col;
-  JDIMENSION width = cinfo->output_width;
-
-  for (row = 0; row < num_rows; row++) {
-    ptrin = input_buf[row];
-    ptrout = output_buf[row];
-    for (col = width; col > 0; col--) {
-      pixcode  = GETJSAMPLE(colorindex0[GETJSAMPLE(*ptrin++)]);
-      pixcode += GETJSAMPLE(colorindex1[GETJSAMPLE(*ptrin++)]);
-      pixcode += GETJSAMPLE(colorindex2[GETJSAMPLE(*ptrin++)]);
-      *ptrout++ = (JSAMPLE) pixcode;
-    }
-  }
-}
-
-
-METHODDEF(void)
-quantize_ord_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf,
-		     JSAMPARRAY output_buf, int num_rows)
-/* General case, with ordered dithering */
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  register JSAMPROW input_ptr;
-  register JSAMPROW output_ptr;
-  JSAMPROW colorindex_ci;
-  int * dither;			/* points to active row of dither matrix */
-  int row_index, col_index;	/* current indexes into dither matrix */
-  int nc = cinfo->out_color_components;
-  int ci;
-  int row;
-  JDIMENSION col;
-  JDIMENSION width = cinfo->output_width;
-
-  for (row = 0; row < num_rows; row++) {
-    /* Initialize output values to 0 so can process components separately */
-    jzero_far((void FAR *) output_buf[row],
-	      (size_t) (width * SIZEOF(JSAMPLE)));
-    row_index = cquantize->row_index;
-    for (ci = 0; ci < nc; ci++) {
-      input_ptr = input_buf[row] + ci;
-      output_ptr = output_buf[row];
-      colorindex_ci = cquantize->colorindex[ci];
-      dither = cquantize->odither[ci][row_index];
-      col_index = 0;
-
-      for (col = width; col > 0; col--) {
-	/* Form pixel value + dither, range-limit to 0..MAXJSAMPLE,
-	 * select output value, accumulate into output code for this pixel.
-	 * Range-limiting need not be done explicitly, as we have extended
-	 * the colorindex table to produce the right answers for out-of-range
-	 * inputs.  The maximum dither is +- MAXJSAMPLE; this sets the
-	 * required amount of padding.
-	 */
-	*output_ptr += colorindex_ci[GETJSAMPLE(*input_ptr)+dither[col_index]];
-	input_ptr += nc;
-	output_ptr++;
-	col_index = (col_index + 1) & ODITHER_MASK;
-      }
-    }
-    /* Advance row index for next row */
-    row_index = (row_index + 1) & ODITHER_MASK;
-    cquantize->row_index = row_index;
-  }
-}
-
-
-METHODDEF(void)
-quantize3_ord_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf,
-		      JSAMPARRAY output_buf, int num_rows)
-/* Fast path for out_color_components==3, with ordered dithering */
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  register int pixcode;
-  register JSAMPROW input_ptr;
-  register JSAMPROW output_ptr;
-  JSAMPROW colorindex0 = cquantize->colorindex[0];
-  JSAMPROW colorindex1 = cquantize->colorindex[1];
-  JSAMPROW colorindex2 = cquantize->colorindex[2];
-  int * dither0;		/* points to active row of dither matrix */
-  int * dither1;
-  int * dither2;
-  int row_index, col_index;	/* current indexes into dither matrix */
-  int row;
-  JDIMENSION col;
-  JDIMENSION width = cinfo->output_width;
-
-  for (row = 0; row < num_rows; row++) {
-    row_index = cquantize->row_index;
-    input_ptr = input_buf[row];
-    output_ptr = output_buf[row];
-    dither0 = cquantize->odither[0][row_index];
-    dither1 = cquantize->odither[1][row_index];
-    dither2 = cquantize->odither[2][row_index];
-    col_index = 0;
-
-    for (col = width; col > 0; col--) {
-      pixcode  = GETJSAMPLE(colorindex0[GETJSAMPLE(*input_ptr++) +
-					dither0[col_index]]);
-      pixcode += GETJSAMPLE(colorindex1[GETJSAMPLE(*input_ptr++) +
-					dither1[col_index]]);
-      pixcode += GETJSAMPLE(colorindex2[GETJSAMPLE(*input_ptr++) +
-					dither2[col_index]]);
-      *output_ptr++ = (JSAMPLE) pixcode;
-      col_index = (col_index + 1) & ODITHER_MASK;
-    }
-    row_index = (row_index + 1) & ODITHER_MASK;
-    cquantize->row_index = row_index;
-  }
-}
-
-
-METHODDEF(void)
-quantize_fs_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf,
-		    JSAMPARRAY output_buf, int num_rows)
-/* General case, with Floyd-Steinberg dithering */
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  register LOCFSERROR cur;	/* current error or pixel value */
-  LOCFSERROR belowerr;		/* error for pixel below cur */
-  LOCFSERROR bpreverr;		/* error for below/prev col */
-  LOCFSERROR bnexterr;		/* error for below/next col */
-  LOCFSERROR delta;
-  register FSERRPTR errorptr;	/* => fserrors[] at column before current */
-  register JSAMPROW input_ptr;
-  register JSAMPROW output_ptr;
-  JSAMPROW colorindex_ci;
-  JSAMPROW colormap_ci;
-  int pixcode;
-  int nc = cinfo->out_color_components;
-  int dir;			/* 1 for left-to-right, -1 for right-to-left */
-  int dirnc;			/* dir * nc */
-  int ci;
-  int row;
-  JDIMENSION col;
-  JDIMENSION width = cinfo->output_width;
-  JSAMPLE *range_limit = cinfo->sample_range_limit;
-  SHIFT_TEMPS
-
-  for (row = 0; row < num_rows; row++) {
-    /* Initialize output values to 0 so can process components separately */
-    jzero_far((void FAR *) output_buf[row],
-	      (size_t) (width * SIZEOF(JSAMPLE)));
-    for (ci = 0; ci < nc; ci++) {
-      input_ptr = input_buf[row] + ci;
-      output_ptr = output_buf[row];
-      if (cquantize->on_odd_row) {
-	/* work right to left in this row */
-	input_ptr += (width-1) * nc; /* so point to rightmost pixel */
-	output_ptr += width-1;
-	dir = -1;
-	dirnc = -nc;
-	errorptr = cquantize->fserrors[ci] + (width+1); /* => entry after last column */
-      } else {
-	/* work left to right in this row */
-	dir = 1;
-	dirnc = nc;
-	errorptr = cquantize->fserrors[ci]; /* => entry before first column */
-      }
-      colorindex_ci = cquantize->colorindex[ci];
-      colormap_ci = cquantize->sv_colormap[ci];
-      /* Preset error values: no error propagated to first pixel from left */
-      cur = 0;
-      /* and no error propagated to row below yet */
-      belowerr = bpreverr = 0;
-
-      for (col = width; col > 0; col--) {
-	/* cur holds the error propagated from the previous pixel on the
-	 * current line.  Add the error propagated from the previous line
-	 * to form the complete error correction term for this pixel, and
-	 * round the error term (which is expressed * 16) to an integer.
-	 * RIGHT_SHIFT rounds towards minus infinity, so adding 8 is correct
-	 * for either sign of the error value.
-	 * Note: errorptr points to *previous* column's array entry.
-	 */
-	cur = RIGHT_SHIFT(cur + errorptr[dir] + 8, 4);
-	/* Form pixel value + error, and range-limit to 0..MAXJSAMPLE.
-	 * The maximum error is +- MAXJSAMPLE; this sets the required size
-	 * of the range_limit array.
-	 */
-	cur += GETJSAMPLE(*input_ptr);
-	cur = GETJSAMPLE(range_limit[cur]);
-	/* Select output value, accumulate into output code for this pixel */
-	pixcode = GETJSAMPLE(colorindex_ci[cur]);
-	*output_ptr += (JSAMPLE) pixcode;
-	/* Compute actual representation error at this pixel */
-	/* Note: we can do this even though we don't have the final */
-	/* pixel code, because the colormap is orthogonal. */
-	cur -= GETJSAMPLE(colormap_ci[pixcode]);
-	/* Compute error fractions to be propagated to adjacent pixels.
-	 * Add these into the running sums, and simultaneously shift the
-	 * next-line error sums left by 1 column.
-	 */
-	bnexterr = cur;
-	delta = cur * 2;
-	cur += delta;		/* form error * 3 */
-	errorptr[0] = (FSERROR) (bpreverr + cur);
-	cur += delta;		/* form error * 5 */
-	bpreverr = belowerr + cur;
-	belowerr = bnexterr;
-	cur += delta;		/* form error * 7 */
-	/* At this point cur contains the 7/16 error value to be propagated
-	 * to the next pixel on the current line, and all the errors for the
-	 * next line have been shifted over. We are therefore ready to move on.
-	 */
-	input_ptr += dirnc;	/* advance input ptr to next column */
-	output_ptr += dir;	/* advance output ptr to next column */
-	errorptr += dir;	/* advance errorptr to current column */
-      }
-      /* Post-loop cleanup: we must unload the final error value into the
-       * final fserrors[] entry.  Note we need not unload belowerr because
-       * it is for the dummy column before or after the actual array.
-       */
-      errorptr[0] = (FSERROR) bpreverr; /* unload prev err into array */
-    }
-    cquantize->on_odd_row = (cquantize->on_odd_row ? FALSE : TRUE);
-  }
-}
-
-
-/*
- * Allocate workspace for Floyd-Steinberg errors.
- */
-
-LOCAL(void)
-alloc_fs_workspace (j_decompress_ptr cinfo)
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  size_t arraysize;
-  int i;
-
-  arraysize = (size_t) ((cinfo->output_width + 2) * SIZEOF(FSERROR));
-  for (i = 0; i < cinfo->out_color_components; i++) {
-    cquantize->fserrors[i] = (FSERRPTR)
-      (*cinfo->mem->alloc_large)((j_common_ptr) cinfo, JPOOL_IMAGE, arraysize);
-  }
-}
-
-
-/*
- * Initialize for one-pass color quantization.
- */
-
-METHODDEF(void)
-start_pass_1_quant (j_decompress_ptr cinfo, boolean is_pre_scan)
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  size_t arraysize;
-  int i;
-
-  /* Install my colormap. */
-  cinfo->colormap = cquantize->sv_colormap;
-  cinfo->actual_number_of_colors = cquantize->sv_actual;
-
-  /* Initialize for desired dithering mode. */
-  switch (cinfo->dither_mode) {
-  case JDITHER_NONE:
-    if (cinfo->out_color_components == 3)
-      cquantize->pub.color_quantize = color_quantize3;
-    else
-      cquantize->pub.color_quantize = color_quantize;
-    break;
-  case JDITHER_ORDERED:
-    if (cinfo->out_color_components == 3)
-      cquantize->pub.color_quantize = quantize3_ord_dither;
-    else
-      cquantize->pub.color_quantize = quantize_ord_dither;
-    cquantize->row_index = 0;	/* initialize state for ordered dither */
-    /* If user changed to ordered dither from another mode,
-     * we must recreate the color index table with padding.
-     * This will cost extra space, but probably isn't very likely.
-     */
-    if (! cquantize->is_padded)
-      create_colorindex(cinfo);
-    /* Create ordered-dither tables if we didn't already. */
-    if (cquantize->odither[0] == NULL)
-      create_odither_tables(cinfo);
-    break;
-  case JDITHER_FS:
-    cquantize->pub.color_quantize = quantize_fs_dither;
-    cquantize->on_odd_row = FALSE; /* initialize state for F-S dither */
-    /* Allocate Floyd-Steinberg workspace if didn't already. */
-    if (cquantize->fserrors[0] == NULL)
-      alloc_fs_workspace(cinfo);
-    /* Initialize the propagated errors to zero. */
-    arraysize = (size_t) ((cinfo->output_width + 2) * SIZEOF(FSERROR));
-    for (i = 0; i < cinfo->out_color_components; i++)
-      jzero_far((void FAR *) cquantize->fserrors[i], arraysize);
-    break;
-  default:
-    ERREXIT(cinfo, JERR_NOT_COMPILED);
-    break;
-  }
-}
-
-
-/*
- * Finish up at the end of the pass.
- */
-
-METHODDEF(void)
-finish_pass_1_quant (j_decompress_ptr cinfo)
-{
-  /* no work in 1-pass case */
-}
-
-
-/*
- * Switch to a new external colormap between output passes.
- * Shouldn't get to this module!
- */
-
-METHODDEF(void)
-new_color_map_1_quant (j_decompress_ptr cinfo)
-{
-  ERREXIT(cinfo, JERR_MODE_CHANGE);
-}
-
-
-/*
- * Module initialization routine for 1-pass color quantization.
- */
-
-GLOBAL(void)
-jinit_1pass_quantizer (j_decompress_ptr cinfo)
-{
-  my_cquantize_ptr cquantize;
-
-  cquantize = (my_cquantize_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_cquantizer));
-  cinfo->cquantize = (struct jpeg_color_quantizer *) cquantize;
-  cquantize->pub.start_pass = start_pass_1_quant;
-  cquantize->pub.finish_pass = finish_pass_1_quant;
-  cquantize->pub.new_color_map = new_color_map_1_quant;
-  cquantize->fserrors[0] = NULL; /* Flag FS workspace not allocated */
-  cquantize->odither[0] = NULL;	/* Also flag odither arrays not allocated */
-
-  /* Make sure my internal arrays won't overflow */
-  if (cinfo->out_color_components > MAX_Q_COMPS)
-    ERREXIT1(cinfo, JERR_QUANT_COMPONENTS, MAX_Q_COMPS);
-  /* Make sure colormap indexes can be represented by JSAMPLEs */
-  if (cinfo->desired_number_of_colors > (MAXJSAMPLE+1))
-    ERREXIT1(cinfo, JERR_QUANT_MANY_COLORS, MAXJSAMPLE+1);
-
-  /* Create the colormap and color index table. */
-  create_colormap(cinfo);
-  create_colorindex(cinfo);
-
-  /* Allocate Floyd-Steinberg workspace now if requested.
-   * We do this now since it is FAR storage and may affect the memory
-   * manager's space calculations.  If the user changes to FS dither
-   * mode in a later pass, we will allocate the space then, and will
-   * possibly overrun the max_memory_to_use setting.
-   */
-  if (cinfo->dither_mode == JDITHER_FS)
-    alloc_fs_workspace(cinfo);
-}
-
-#endif /* TQUANT_1PASS_SUPPORTED */
diff --git a/src/3rdparty/libjpeg/jquant2.c b/src/3rdparty/libjpeg/jquant2.c
deleted file mode 100644
index 24d3cc219..000000000
--- a/src/3rdparty/libjpeg/jquant2.c
+++ /dev/null
@@ -1,1310 +0,0 @@
-/*
- * jquant2.c
- *
- * Copyright (C) 1991-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains 2-pass color quantization (color mapping) routines.
- * These routines provide selection of a custom color map for an image,
- * followed by mapping of the image to that color map, with optional
- * Floyd-Steinberg dithering.
- * It is also possible to use just the second pass to map to an arbitrary
- * externally-given color map.
- *
- * Note: ordered dithering is not supported, since there isn't any fast
- * way to compute intercolor distances; it's unclear that ordered dither's
- * fundamental assumptions even hold with an irregularly spaced color map.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-#ifdef TQUANT_2PASS_SUPPORTED
-
-
-/*
- * This module implements the well-known Heckbert paradigm for color
- * quantization.  Most of the ideas used here can be traced back to
- * Heckbert's seminal paper
- *   Heckbert, Paul.  "Color Image Quantization for Frame Buffer Display",
- *   Proc. SIGGRAPH '82, Computer Graphics v.16 #3 (July 1982), pp 297-304.
- *
- * In the first pass over the image, we accumulate a histogram showing the
- * usage count of each possible color.  To keep the histogram to a reasonable
- * size, we reduce the precision of the input; typical practice is to retain
- * 5 or 6 bits per color, so that 8 or 4 different input values are counted
- * in the same histogram cell.
- *
- * Next, the color-selection step begins with a box representing the whole
- * color space, and repeatedly splits the "largest" remaining box until we
- * have as many boxes as desired colors.  Then the mean color in each
- * remaining box becomes one of the possible output colors.
- * 
- * The second pass over the image maps each input pixel to the closest output
- * color (optionally after applying a Floyd-Steinberg dithering correction).
- * This mapping is logically trivial, but making it go fast enough requires
- * considerable care.
- *
- * Heckbert-style quantizers vary a good deal in their policies for choosing
- * the "largest" box and deciding where to cut it.  The particular policies
- * used here have proved out well in experimental comparisons, but better ones
- * may yet be found.
- *
- * In earlier versions of the IJG code, this module quantized in YCbCr color
- * space, processing the raw upsampled data without a color conversion step.
- * This allowed the color conversion math to be done only once per colormap
- * entry, not once per pixel.  However, that optimization precluded other
- * useful optimizations (such as merging color conversion with upsampling)
- * and it also interfered with desired capabilities such as quantizing to an
- * externally-supplied colormap.  We have therefore abandoned that approach.
- * The present code works in the post-conversion color space, typically RGB.
- *
- * To improve the visual quality of the results, we actually work in scaled
- * RGB space, giving G distances more weight than R, and R in turn more than
- * B.  To do everything in integer math, we must use integer scale factors.
- * The 2/3/1 scale factors used here correspond loosely to the relative
- * weights of the colors in the NTSC grayscale equation.
- * If you want to use this code to quantize a non-RGB color space, you'll
- * probably need to change these scale factors.
- */
-
-#define R_SCALE 2		/* scale R distances by this much */
-#define G_SCALE 3		/* scale G distances by this much */
-#define B_SCALE 1		/* and B by this much */
-
-/* Relabel R/G/B as components 0/1/2, respecting the RGB ordering defined
- * in jmorecfg.h.  As the code stands, it will do the right thing for R,G,B
- * and B,G,R orders.  If you define some other weird order in jmorecfg.h,
- * you'll get compile errors until you extend this logic.  In that case
- * you'll probably want to tweak the histogram sizes too.
- */
-
-#if RGB_RED == 0
-#define C0_SCALE R_SCALE
-#endif
-#if RGB_BLUE == 0
-#define C0_SCALE B_SCALE
-#endif
-#if RGB_GREEN == 1
-#define C1_SCALE G_SCALE
-#endif
-#if RGB_RED == 2
-#define C2_SCALE R_SCALE
-#endif
-#if RGB_BLUE == 2
-#define C2_SCALE B_SCALE
-#endif
-
-
-/*
- * First we have the histogram data structure and routines for creating it.
- *
- * The number of bits of precision can be adjusted by changing these symbols.
- * We recommend keeping 6 bits for G and 5 each for R and B.
- * If you have plenty of memory and cycles, 6 bits all around gives marginally
- * better results; if you are short of memory, 5 bits all around will save
- * some space but degrade the results.
- * To maintain a fully accurate histogram, we'd need to allocate a "long"
- * (preferably unsigned long) for each cell.  In practice this is overkill;
- * we can get by with 16 bits per cell.  Few of the cell counts will overflow,
- * and clamping those that do overflow to the maximum value will give close-
- * enough results.  This reduces the recommended histogram size from 256Kb
- * to 128Kb, which is a useful savings on PC-class machines.
- * (In the second pass the histogram space is re-used for pixel mapping data;
- * in that capacity, each cell must be able to store zero to the number of
- * desired colors.  16 bits/cell is plenty for that too.)
- * Since the JPEG code is intended to run in small memory model on 80x86
- * machines, we can't just allocate the histogram in one chunk.  Instead
- * of a true 3-D array, we use a row of pointers to 2-D arrays.  Each
- * pointer corresponds to a C0 value (typically 2^5 = 32 pointers) and
- * each 2-D array has 2^6*2^5 = 2048 or 2^6*2^6 = 4096 entries.  Note that
- * on 80x86 machines, the pointer row is in near memory but the actual
- * arrays are in far memory (same arrangement as we use for image arrays).
- */
-
-#define MAXNUMCOLORS  (MAXJSAMPLE+1) /* maximum size of colormap */
-
-/* These will do the right thing for either R,G,B or B,G,R color order,
- * but you may not like the results for other color orders.
- */
-#define HIST_C0_BITS  5		/* bits of precision in R/B histogram */
-#define HIST_C1_BITS  6		/* bits of precision in G histogram */
-#define HIST_C2_BITS  5		/* bits of precision in B/R histogram */
-
-/* Number of elements along histogram axes. */
-#define HIST_C0_ELEMS  (1<<HIST_C0_BITS)
-#define HIST_C1_ELEMS  (1<<HIST_C1_BITS)
-#define HIST_C2_ELEMS  (1<<HIST_C2_BITS)
-
-/* These are the amounts to shift an input value to get a histogram index. */
-#define C0_SHIFT  (BITS_IN_JSAMPLE-HIST_C0_BITS)
-#define C1_SHIFT  (BITS_IN_JSAMPLE-HIST_C1_BITS)
-#define C2_SHIFT  (BITS_IN_JSAMPLE-HIST_C2_BITS)
-
-
-typedef UINT16 histcell;	/* histogram cell; prefer an unsigned type */
-
-typedef histcell FAR * histptr;	/* for pointers to histogram cells */
-
-typedef histcell hist1d[HIST_C2_ELEMS]; /* typedefs for the array */
-typedef hist1d FAR * hist2d;	/* type for the 2nd-level pointers */
-typedef hist2d * hist3d;	/* type for top-level pointer */
-
-
-/* Declarations for Floyd-Steinberg dithering.
- *
- * Errors are accumulated into the array fserrors[], at a resolution of
- * 1/16th of a pixel count.  The error at a given pixel is propagated
- * to its not-yet-processed neighbors using the standard F-S fractions,
- *		...	(here)	7/16
- *		3/16	5/16	1/16
- * We work left-to-right on even rows, right-to-left on odd rows.
- *
- * We can get away with a single array (holding one row's worth of errors)
- * by using it to store the current row's errors at pixel columns not yet
- * processed, but the next row's errors at columns already processed.  We
- * need only a few extra variables to hold the errors immediately around the
- * current column.  (If we are lucky, those variables are in registers, but
- * even if not, they're probably cheaper to access than array elements are.)
- *
- * The fserrors[] array has (#columns + 2) entries; the extra entry at
- * each end saves us from special-casing the first and last pixels.
- * Each entry is three values long, one value for each color component.
- *
- * Note: on a wide image, we might not have enough room in a PC's near data
- * segment to hold the error array; so it is allocated with alloc_large.
- */
-
-#if BITS_IN_JSAMPLE == 8
-typedef INT16 FSERROR;		/* 16 bits should be enough */
-typedef int LOCFSERROR;		/* use 'int' for calculation temps */
-#else
-typedef INT32 FSERROR;		/* may need more than 16 bits */
-typedef INT32 LOCFSERROR;	/* be sure calculation temps are big enough */
-#endif
-
-typedef FSERROR FAR *FSERRPTR;	/* pointer to error array (in FAR storage!) */
-
-
-/* Private subobject */
-
-typedef struct {
-  struct jpeg_color_quantizer pub; /* public fields */
-
-  /* Space for the eventually created colormap is stashed here */
-  JSAMPARRAY sv_colormap;	/* colormap allocated at init time */
-  int desired;			/* desired # of colors = size of colormap */
-
-  /* Variables for accumulating image statistics */
-  hist3d histogram;		/* pointer to the histogram */
-
-  boolean needs_zeroed;		/* TRUE if next pass must zero histogram */
-
-  /* Variables for Floyd-Steinberg dithering */
-  FSERRPTR fserrors;		/* accumulated errors */
-  boolean on_odd_row;		/* flag to remember which row we are on */
-  int * error_limiter;		/* table for clamping the applied error */
-} my_cquantizer;
-
-typedef my_cquantizer * my_cquantize_ptr;
-
-
-/*
- * Prescan some rows of pixels.
- * In this module the prescan simply updates the histogram, which has been
- * initialized to zeroes by start_pass.
- * An output_buf parameter is required by the method signature, but no data
- * is actually output (in fact the buffer controller is probably passing a
- * NULL pointer).
- */
-
-METHODDEF(void)
-prescan_quantize (j_decompress_ptr cinfo, JSAMPARRAY input_buf,
-		  JSAMPARRAY output_buf, int num_rows)
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  register JSAMPROW ptr;
-  register histptr histp;
-  register hist3d histogram = cquantize->histogram;
-  int row;
-  JDIMENSION col;
-  JDIMENSION width = cinfo->output_width;
-
-  for (row = 0; row < num_rows; row++) {
-    ptr = input_buf[row];
-    for (col = width; col > 0; col--) {
-      /* get pixel value and index into the histogram */
-      histp = & histogram[GETJSAMPLE(ptr[0]) >> C0_SHIFT]
-			 [GETJSAMPLE(ptr[1]) >> C1_SHIFT]
-			 [GETJSAMPLE(ptr[2]) >> C2_SHIFT];
-      /* increment, check for overflow and undo increment if so. */
-      if (++(*histp) <= 0)
-	(*histp)--;
-      ptr += 3;
-    }
-  }
-}
-
-
-/*
- * Next we have the really interesting routines: selection of a colormap
- * given the completed histogram.
- * These routines work with a list of "boxes", each representing a rectangular
- * subset of the input color space (to histogram precision).
- */
-
-typedef struct {
-  /* The bounds of the box (inclusive); expressed as histogram indexes */
-  int c0min, c0max;
-  int c1min, c1max;
-  int c2min, c2max;
-  /* The volume (actually 2-norm) of the box */
-  INT32 volume;
-  /* The number of nonzero histogram cells within this box */
-  long colorcount;
-} box;
-
-typedef box * boxptr;
-
-
-LOCAL(boxptr)
-find_biggest_color_pop (boxptr boxlist, int numboxes)
-/* Find the splittable box with the largest color population */
-/* Returns NULL if no splittable boxes remain */
-{
-  register boxptr boxp;
-  register int i;
-  register long maxc = 0;
-  boxptr which = NULL;
-  
-  for (i = 0, boxp = boxlist; i < numboxes; i++, boxp++) {
-    if (boxp->colorcount > maxc && boxp->volume > 0) {
-      which = boxp;
-      maxc = boxp->colorcount;
-    }
-  }
-  return which;
-}
-
-
-LOCAL(boxptr)
-find_biggest_volume (boxptr boxlist, int numboxes)
-/* Find the splittable box with the largest (scaled) volume */
-/* Returns NULL if no splittable boxes remain */
-{
-  register boxptr boxp;
-  register int i;
-  register INT32 maxv = 0;
-  boxptr which = NULL;
-  
-  for (i = 0, boxp = boxlist; i < numboxes; i++, boxp++) {
-    if (boxp->volume > maxv) {
-      which = boxp;
-      maxv = boxp->volume;
-    }
-  }
-  return which;
-}
-
-
-LOCAL(void)
-update_box (j_decompress_ptr cinfo, boxptr boxp)
-/* Shrink the min/max bounds of a box to enclose only nonzero elements, */
-/* and recompute its volume and population */
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  hist3d histogram = cquantize->histogram;
-  histptr histp;
-  int c0,c1,c2;
-  int c0min,c0max,c1min,c1max,c2min,c2max;
-  INT32 dist0,dist1,dist2;
-  long ccount;
-  
-  c0min = boxp->c0min;  c0max = boxp->c0max;
-  c1min = boxp->c1min;  c1max = boxp->c1max;
-  c2min = boxp->c2min;  c2max = boxp->c2max;
-  
-  if (c0max > c0min)
-    for (c0 = c0min; c0 <= c0max; c0++)
-      for (c1 = c1min; c1 <= c1max; c1++) {
-	histp = & histogram[c0][c1][c2min];
-	for (c2 = c2min; c2 <= c2max; c2++)
-	  if (*histp++ != 0) {
-	    boxp->c0min = c0min = c0;
-	    goto have_c0min;
-	  }
-      }
- have_c0min:
-  if (c0max > c0min)
-    for (c0 = c0max; c0 >= c0min; c0--)
-      for (c1 = c1min; c1 <= c1max; c1++) {
-	histp = & histogram[c0][c1][c2min];
-	for (c2 = c2min; c2 <= c2max; c2++)
-	  if (*histp++ != 0) {
-	    boxp->c0max = c0max = c0;
-	    goto have_c0max;
-	  }
-      }
- have_c0max:
-  if (c1max > c1min)
-    for (c1 = c1min; c1 <= c1max; c1++)
-      for (c0 = c0min; c0 <= c0max; c0++) {
-	histp = & histogram[c0][c1][c2min];
-	for (c2 = c2min; c2 <= c2max; c2++)
-	  if (*histp++ != 0) {
-	    boxp->c1min = c1min = c1;
-	    goto have_c1min;
-	  }
-      }
- have_c1min:
-  if (c1max > c1min)
-    for (c1 = c1max; c1 >= c1min; c1--)
-      for (c0 = c0min; c0 <= c0max; c0++) {
-	histp = & histogram[c0][c1][c2min];
-	for (c2 = c2min; c2 <= c2max; c2++)
-	  if (*histp++ != 0) {
-	    boxp->c1max = c1max = c1;
-	    goto have_c1max;
-	  }
-      }
- have_c1max:
-  if (c2max > c2min)
-    for (c2 = c2min; c2 <= c2max; c2++)
-      for (c0 = c0min; c0 <= c0max; c0++) {
-	histp = & histogram[c0][c1min][c2];
-	for (c1 = c1min; c1 <= c1max; c1++, histp += HIST_C2_ELEMS)
-	  if (*histp != 0) {
-	    boxp->c2min = c2min = c2;
-	    goto have_c2min;
-	  }
-      }
- have_c2min:
-  if (c2max > c2min)
-    for (c2 = c2max; c2 >= c2min; c2--)
-      for (c0 = c0min; c0 <= c0max; c0++) {
-	histp = & histogram[c0][c1min][c2];
-	for (c1 = c1min; c1 <= c1max; c1++, histp += HIST_C2_ELEMS)
-	  if (*histp != 0) {
-	    boxp->c2max = c2max = c2;
-	    goto have_c2max;
-	  }
-      }
- have_c2max:
-
-  /* Update box volume.
-   * We use 2-norm rather than real volume here; this biases the method
-   * against making long narrow boxes, and it has the side benefit that
-   * a box is splittable iff norm > 0.
-   * Since the differences are expressed in histogram-cell units,
-   * we have to shift back to JSAMPLE units to get consistent distances;
-   * after which, we scale according to the selected distance scale factors.
-   */
-  dist0 = ((c0max - c0min) << C0_SHIFT) * C0_SCALE;
-  dist1 = ((c1max - c1min) << C1_SHIFT) * C1_SCALE;
-  dist2 = ((c2max - c2min) << C2_SHIFT) * C2_SCALE;
-  boxp->volume = dist0*dist0 + dist1*dist1 + dist2*dist2;
-  
-  /* Now scan remaining volume of box and compute population */
-  ccount = 0;
-  for (c0 = c0min; c0 <= c0max; c0++)
-    for (c1 = c1min; c1 <= c1max; c1++) {
-      histp = & histogram[c0][c1][c2min];
-      for (c2 = c2min; c2 <= c2max; c2++, histp++)
-	if (*histp != 0) {
-	  ccount++;
-	}
-    }
-  boxp->colorcount = ccount;
-}
-
-
-LOCAL(int)
-median_cut (j_decompress_ptr cinfo, boxptr boxlist, int numboxes,
-	    int desired_colors)
-/* Repeatedly select and split the largest box until we have enough boxes */
-{
-  int n,lb;
-  int c0,c1,c2,cmax;
-  register boxptr b1,b2;
-
-  while (numboxes < desired_colors) {
-    /* Select box to split.
-     * Current algorithm: by population for first half, then by volume.
-     */
-    if (numboxes*2 <= desired_colors) {
-      b1 = find_biggest_color_pop(boxlist, numboxes);
-    } else {
-      b1 = find_biggest_volume(boxlist, numboxes);
-    }
-    if (b1 == NULL)		/* no splittable boxes left! */
-      break;
-    b2 = &boxlist[numboxes];	/* where new box will go */
-    /* Copy the color bounds to the new box. */
-    b2->c0max = b1->c0max; b2->c1max = b1->c1max; b2->c2max = b1->c2max;
-    b2->c0min = b1->c0min; b2->c1min = b1->c1min; b2->c2min = b1->c2min;
-    /* Choose which axis to split the box on.
-     * Current algorithm: longest scaled axis.
-     * See notes in update_box about scaling distances.
-     */
-    c0 = ((b1->c0max - b1->c0min) << C0_SHIFT) * C0_SCALE;
-    c1 = ((b1->c1max - b1->c1min) << C1_SHIFT) * C1_SCALE;
-    c2 = ((b1->c2max - b1->c2min) << C2_SHIFT) * C2_SCALE;
-    /* We want to break any ties in favor of green, then red, blue last.
-     * This code does the right thing for R,G,B or B,G,R color orders only.
-     */
-#if RGB_RED == 0
-    cmax = c1; n = 1;
-    if (c0 > cmax) { cmax = c0; n = 0; }
-    if (c2 > cmax) { n = 2; }
-#else
-    cmax = c1; n = 1;
-    if (c2 > cmax) { cmax = c2; n = 2; }
-    if (c0 > cmax) { n = 0; }
-#endif
-    /* Choose split point along selected axis, and update box bounds.
-     * Current algorithm: split at halfway point.
-     * (Since the box has been shrunk to minimum volume,
-     * any split will produce two nonempty subboxes.)
-     * Note that lb value is max for lower box, so must be < old max.
-     */
-    switch (n) {
-    case 0:
-      lb = (b1->c0max + b1->c0min) / 2;
-      b1->c0max = lb;
-      b2->c0min = lb+1;
-      break;
-    case 1:
-      lb = (b1->c1max + b1->c1min) / 2;
-      b1->c1max = lb;
-      b2->c1min = lb+1;
-      break;
-    case 2:
-      lb = (b1->c2max + b1->c2min) / 2;
-      b1->c2max = lb;
-      b2->c2min = lb+1;
-      break;
-    }
-    /* Update stats for boxes */
-    update_box(cinfo, b1);
-    update_box(cinfo, b2);
-    numboxes++;
-  }
-  return numboxes;
-}
-
-
-LOCAL(void)
-compute_color (j_decompress_ptr cinfo, boxptr boxp, int icolor)
-/* Compute representative color for a box, put it in colormap[icolor] */
-{
-  /* Current algorithm: mean weighted by pixels (not colors) */
-  /* Note it is important to get the rounding correct! */
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  hist3d histogram = cquantize->histogram;
-  histptr histp;
-  int c0,c1,c2;
-  int c0min,c0max,c1min,c1max,c2min,c2max;
-  long count;
-  long total = 0;
-  long c0total = 0;
-  long c1total = 0;
-  long c2total = 0;
-  
-  c0min = boxp->c0min;  c0max = boxp->c0max;
-  c1min = boxp->c1min;  c1max = boxp->c1max;
-  c2min = boxp->c2min;  c2max = boxp->c2max;
-  
-  for (c0 = c0min; c0 <= c0max; c0++)
-    for (c1 = c1min; c1 <= c1max; c1++) {
-      histp = & histogram[c0][c1][c2min];
-      for (c2 = c2min; c2 <= c2max; c2++) {
-	if ((count = *histp++) != 0) {
-	  total += count;
-	  c0total += ((c0 << C0_SHIFT) + ((1<<C0_SHIFT)>>1)) * count;
-	  c1total += ((c1 << C1_SHIFT) + ((1<<C1_SHIFT)>>1)) * count;
-	  c2total += ((c2 << C2_SHIFT) + ((1<<C2_SHIFT)>>1)) * count;
-	}
-      }
-    }
-  
-  cinfo->colormap[0][icolor] = (JSAMPLE) ((c0total + (total>>1)) / total);
-  cinfo->colormap[1][icolor] = (JSAMPLE) ((c1total + (total>>1)) / total);
-  cinfo->colormap[2][icolor] = (JSAMPLE) ((c2total + (total>>1)) / total);
-}
-
-
-LOCAL(void)
-select_colors (j_decompress_ptr cinfo, int desired_colors)
-/* Master routine for color selection */
-{
-  boxptr boxlist;
-  int numboxes;
-  int i;
-
-  /* Allocate workspace for box list */
-  boxlist = (boxptr) (*cinfo->mem->alloc_small)
-    ((j_common_ptr) cinfo, JPOOL_IMAGE, desired_colors * SIZEOF(box));
-  /* Initialize one box containing whole space */
-  numboxes = 1;
-  boxlist[0].c0min = 0;
-  boxlist[0].c0max = MAXJSAMPLE >> C0_SHIFT;
-  boxlist[0].c1min = 0;
-  boxlist[0].c1max = MAXJSAMPLE >> C1_SHIFT;
-  boxlist[0].c2min = 0;
-  boxlist[0].c2max = MAXJSAMPLE >> C2_SHIFT;
-  /* Shrink it to actually-used volume and set its statistics */
-  update_box(cinfo, & boxlist[0]);
-  /* Perform median-cut to produce final box list */
-  numboxes = median_cut(cinfo, boxlist, numboxes, desired_colors);
-  /* Compute the representative color for each box, fill colormap */
-  for (i = 0; i < numboxes; i++)
-    compute_color(cinfo, & boxlist[i], i);
-  cinfo->actual_number_of_colors = numboxes;
-  TRACEMS1(cinfo, 1, JTRC_QUANT_SELECTED, numboxes);
-}
-
-
-/*
- * These routines are concerned with the time-critical task of mapping input
- * colors to the nearest color in the selected colormap.
- *
- * We re-use the histogram space as an "inverse color map", essentially a
- * cache for the results of nearest-color searches.  All colors within a
- * histogram cell will be mapped to the same colormap entry, namely the one
- * closest to the cell's center.  This may not be quite the closest entry to
- * the actual input color, but it's almost as good.  A zero in the cache
- * indicates we haven't found the nearest color for that cell yet; the array
- * is cleared to zeroes before starting the mapping pass.  When we find the
- * nearest color for a cell, its colormap index plus one is recorded in the
- * cache for future use.  The pass2 scanning routines call fill_inverse_cmap
- * when they need to use an unfilled entry in the cache.
- *
- * Our method of efficiently finding nearest colors is based on the "locally
- * sorted search" idea described by Heckbert and on the incremental distance
- * calculation described by Spencer W. Thomas in chapter III.1 of Graphics
- * Gems II (James Arvo, ed.  Academic Press, 1991).  Thomas points out that
- * the distances from a given colormap entry to each cell of the histogram can
- * be computed tquickly using an incremental method: the differences between
- * distances to adjacent cells themselves differ by a constant.  This allows a
- * fairly fast implementation of the "brute force" approach of computing the
- * distance from every colormap entry to every histogram cell.  Unfortunately,
- * it needs a work array to hold the best-distance-so-far for each histogram
- * cell (because the inner loop has to be over cells, not colormap entries).
- * The work array elements have to be INT32s, so the work array would need
- * 256Kb at our recommended precision.  This is not feasible in DOS machines.
- *
- * To get around these problems, we apply Thomas' method to compute the
- * nearest colors for only the cells within a small subbox of the histogram.
- * The work array need be only as big as the subbox, so the memory usage
- * problem is solved.  Furthermore, we need not fill subboxes that are never
- * referenced in pass2; many images use only part of the color gamut, so a
- * fair amount of work is saved.  An additional advantage of this
- * approach is that we can apply Heckbert's locality criterion to tquickly
- * eliminate colormap entries that are far away from the subbox; typically
- * three-fourths of the colormap entries are rejected by Heckbert's criterion,
- * and we need not compute their distances to individual cells in the subbox.
- * The speed of this approach is heavily influenced by the subbox size: too
- * small means too much overhead, too big loses because Heckbert's criterion
- * can't eliminate as many colormap entries.  Empirically the best subbox
- * size seems to be about 1/512th of the histogram (1/8th in each direction).
- *
- * Thomas' article also describes a refined method which is asymptotically
- * faster than the brute-force method, but it is also far more complex and
- * cannot efficiently be applied to small subboxes.  It is therefore not
- * useful for programs intended to be portable to DOS machines.  On machines
- * with plenty of memory, filling the whole histogram in one shot with Thomas'
- * refined method might be faster than the present code --- but then again,
- * it might not be any faster, and it's certainly more complicated.
- */
-
-
-/* log2(histogram cells in update box) for each axis; this can be adjusted */
-#define BOX_C0_LOG  (HIST_C0_BITS-3)
-#define BOX_C1_LOG  (HIST_C1_BITS-3)
-#define BOX_C2_LOG  (HIST_C2_BITS-3)
-
-#define BOX_C0_ELEMS  (1<<BOX_C0_LOG) /* # of hist cells in update box */
-#define BOX_C1_ELEMS  (1<<BOX_C1_LOG)
-#define BOX_C2_ELEMS  (1<<BOX_C2_LOG)
-
-#define BOX_C0_SHIFT  (C0_SHIFT + BOX_C0_LOG)
-#define BOX_C1_SHIFT  (C1_SHIFT + BOX_C1_LOG)
-#define BOX_C2_SHIFT  (C2_SHIFT + BOX_C2_LOG)
-
-
-/*
- * The next three routines implement inverse colormap filling.  They could
- * all be folded into one big routine, but splitting them up this way saves
- * some stack space (the mindist[] and bestdist[] arrays need not coexist)
- * and may allow some compilers to produce better code by registerizing more
- * inner-loop variables.
- */
-
-LOCAL(int)
-find_nearby_colors (j_decompress_ptr cinfo, int minc0, int minc1, int minc2,
-		    JSAMPLE colorlist[])
-/* Locate the colormap entries close enough to an update box to be candidates
- * for the nearest entry to some cell(s) in the update box.  The update box
- * is specified by the center coordinates of its first cell.  The number of
- * candidate colormap entries is returned, and their colormap indexes are
- * placed in colorlist[].
- * This routine uses Heckbert's "locally sorted search" criterion to select
- * the colors that need further consideration.
- */
-{
-  int numcolors = cinfo->actual_number_of_colors;
-  int maxc0, maxc1, maxc2;
-  int centerc0, centerc1, centerc2;
-  int i, x, ncolors;
-  INT32 minmaxdist, min_dist, max_dist, tdist;
-  INT32 mindist[MAXNUMCOLORS];	/* min distance to colormap entry i */
-
-  /* Compute true coordinates of update box's upper corner and center.
-   * Actually we compute the coordinates of the center of the upper-corner
-   * histogram cell, which are the upper bounds of the volume we care about.
-   * Note that since ">>" rounds down, the "center" values may be closer to
-   * min than to max; hence comparisons to them must be "<=", not "<".
-   */
-  maxc0 = minc0 + ((1 << BOX_C0_SHIFT) - (1 << C0_SHIFT));
-  centerc0 = (minc0 + maxc0) >> 1;
-  maxc1 = minc1 + ((1 << BOX_C1_SHIFT) - (1 << C1_SHIFT));
-  centerc1 = (minc1 + maxc1) >> 1;
-  maxc2 = minc2 + ((1 << BOX_C2_SHIFT) - (1 << C2_SHIFT));
-  centerc2 = (minc2 + maxc2) >> 1;
-
-  /* For each color in colormap, find:
-   *  1. its minimum squared-distance to any point in the update box
-   *     (zero if color is within update box);
-   *  2. its maximum squared-distance to any point in the update box.
-   * Both of these can be found by considering only the corners of the box.
-   * We save the minimum distance for each color in mindist[];
-   * only the smallest maximum distance is of interest.
-   */
-  minmaxdist = 0x7FFFFFFFL;
-
-  for (i = 0; i < numcolors; i++) {
-    /* We compute the squared-c0-distance term, then add in the other two. */
-    x = GETJSAMPLE(cinfo->colormap[0][i]);
-    if (x < minc0) {
-      tdist = (x - minc0) * C0_SCALE;
-      min_dist = tdist*tdist;
-      tdist = (x - maxc0) * C0_SCALE;
-      max_dist = tdist*tdist;
-    } else if (x > maxc0) {
-      tdist = (x - maxc0) * C0_SCALE;
-      min_dist = tdist*tdist;
-      tdist = (x - minc0) * C0_SCALE;
-      max_dist = tdist*tdist;
-    } else {
-      /* within cell range so no contribution to min_dist */
-      min_dist = 0;
-      if (x <= centerc0) {
-	tdist = (x - maxc0) * C0_SCALE;
-	max_dist = tdist*tdist;
-      } else {
-	tdist = (x - minc0) * C0_SCALE;
-	max_dist = tdist*tdist;
-      }
-    }
-
-    x = GETJSAMPLE(cinfo->colormap[1][i]);
-    if (x < minc1) {
-      tdist = (x - minc1) * C1_SCALE;
-      min_dist += tdist*tdist;
-      tdist = (x - maxc1) * C1_SCALE;
-      max_dist += tdist*tdist;
-    } else if (x > maxc1) {
-      tdist = (x - maxc1) * C1_SCALE;
-      min_dist += tdist*tdist;
-      tdist = (x - minc1) * C1_SCALE;
-      max_dist += tdist*tdist;
-    } else {
-      /* within cell range so no contribution to min_dist */
-      if (x <= centerc1) {
-	tdist = (x - maxc1) * C1_SCALE;
-	max_dist += tdist*tdist;
-      } else {
-	tdist = (x - minc1) * C1_SCALE;
-	max_dist += tdist*tdist;
-      }
-    }
-
-    x = GETJSAMPLE(cinfo->colormap[2][i]);
-    if (x < minc2) {
-      tdist = (x - minc2) * C2_SCALE;
-      min_dist += tdist*tdist;
-      tdist = (x - maxc2) * C2_SCALE;
-      max_dist += tdist*tdist;
-    } else if (x > maxc2) {
-      tdist = (x - maxc2) * C2_SCALE;
-      min_dist += tdist*tdist;
-      tdist = (x - minc2) * C2_SCALE;
-      max_dist += tdist*tdist;
-    } else {
-      /* within cell range so no contribution to min_dist */
-      if (x <= centerc2) {
-	tdist = (x - maxc2) * C2_SCALE;
-	max_dist += tdist*tdist;
-      } else {
-	tdist = (x - minc2) * C2_SCALE;
-	max_dist += tdist*tdist;
-      }
-    }
-
-    mindist[i] = min_dist;	/* save away the results */
-    if (max_dist < minmaxdist)
-      minmaxdist = max_dist;
-  }
-
-  /* Now we know that no cell in the update box is more than minmaxdist
-   * away from some colormap entry.  Therefore, only colors that are
-   * within minmaxdist of some part of the box need be considered.
-   */
-  ncolors = 0;
-  for (i = 0; i < numcolors; i++) {
-    if (mindist[i] <= minmaxdist)
-      colorlist[ncolors++] = (JSAMPLE) i;
-  }
-  return ncolors;
-}
-
-
-LOCAL(void)
-find_best_colors (j_decompress_ptr cinfo, int minc0, int minc1, int minc2,
-		  int numcolors, JSAMPLE colorlist[], JSAMPLE bestcolor[])
-/* Find the closest colormap entry for each cell in the update box,
- * given the list of candidate colors prepared by find_nearby_colors.
- * Return the indexes of the closest entries in the bestcolor[] array.
- * This routine uses Thomas' incremental distance calculation method to
- * find the distance from a colormap entry to successive cells in the box.
- */
-{
-  int ic0, ic1, ic2;
-  int i, icolor;
-  register INT32 * bptr;	/* pointer into bestdist[] array */
-  JSAMPLE * cptr;		/* pointer into bestcolor[] array */
-  INT32 dist0, dist1;		/* initial distance values */
-  register INT32 dist2;		/* current distance in inner loop */
-  INT32 xx0, xx1;		/* distance increments */
-  register INT32 xx2;
-  INT32 inc0, inc1, inc2;	/* initial values for increments */
-  /* This array holds the distance to the nearest-so-far color for each cell */
-  INT32 bestdist[BOX_C0_ELEMS * BOX_C1_ELEMS * BOX_C2_ELEMS];
-
-  /* Initialize best-distance for each cell of the update box */
-  bptr = bestdist;
-  for (i = BOX_C0_ELEMS*BOX_C1_ELEMS*BOX_C2_ELEMS-1; i >= 0; i--)
-    *bptr++ = 0x7FFFFFFFL;
-  
-  /* For each color selected by find_nearby_colors,
-   * compute its distance to the center of each cell in the box.
-   * If that's less than best-so-far, update best distance and color number.
-   */
-  
-  /* Nominal steps between cell centers ("x" in Thomas article) */
-#define STEP_C0  ((1 << C0_SHIFT) * C0_SCALE)
-#define STEP_C1  ((1 << C1_SHIFT) * C1_SCALE)
-#define STEP_C2  ((1 << C2_SHIFT) * C2_SCALE)
-  
-  for (i = 0; i < numcolors; i++) {
-    icolor = GETJSAMPLE(colorlist[i]);
-    /* Compute (square of) distance from minc0/c1/c2 to this color */
-    inc0 = (minc0 - GETJSAMPLE(cinfo->colormap[0][icolor])) * C0_SCALE;
-    dist0 = inc0*inc0;
-    inc1 = (minc1 - GETJSAMPLE(cinfo->colormap[1][icolor])) * C1_SCALE;
-    dist0 += inc1*inc1;
-    inc2 = (minc2 - GETJSAMPLE(cinfo->colormap[2][icolor])) * C2_SCALE;
-    dist0 += inc2*inc2;
-    /* Form the initial difference increments */
-    inc0 = inc0 * (2 * STEP_C0) + STEP_C0 * STEP_C0;
-    inc1 = inc1 * (2 * STEP_C1) + STEP_C1 * STEP_C1;
-    inc2 = inc2 * (2 * STEP_C2) + STEP_C2 * STEP_C2;
-    /* Now loop over all cells in box, updating distance per Thomas method */
-    bptr = bestdist;
-    cptr = bestcolor;
-    xx0 = inc0;
-    for (ic0 = BOX_C0_ELEMS-1; ic0 >= 0; ic0--) {
-      dist1 = dist0;
-      xx1 = inc1;
-      for (ic1 = BOX_C1_ELEMS-1; ic1 >= 0; ic1--) {
-	dist2 = dist1;
-	xx2 = inc2;
-	for (ic2 = BOX_C2_ELEMS-1; ic2 >= 0; ic2--) {
-	  if (dist2 < *bptr) {
-	    *bptr = dist2;
-	    *cptr = (JSAMPLE) icolor;
-	  }
-	  dist2 += xx2;
-	  xx2 += 2 * STEP_C2 * STEP_C2;
-	  bptr++;
-	  cptr++;
-	}
-	dist1 += xx1;
-	xx1 += 2 * STEP_C1 * STEP_C1;
-      }
-      dist0 += xx0;
-      xx0 += 2 * STEP_C0 * STEP_C0;
-    }
-  }
-}
-
-
-LOCAL(void)
-fill_inverse_cmap (j_decompress_ptr cinfo, int c0, int c1, int c2)
-/* Fill the inverse-colormap entries in the update box that contains */
-/* histogram cell c0/c1/c2.  (Only that one cell MUST be filled, but */
-/* we can fill as many others as we wish.) */
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  hist3d histogram = cquantize->histogram;
-  int minc0, minc1, minc2;	/* lower left corner of update box */
-  int ic0, ic1, ic2;
-  register JSAMPLE * cptr;	/* pointer into bestcolor[] array */
-  register histptr cachep;	/* pointer into main cache array */
-  /* This array lists the candidate colormap indexes. */
-  JSAMPLE colorlist[MAXNUMCOLORS];
-  int numcolors;		/* number of candidate colors */
-  /* This array holds the actually closest colormap index for each cell. */
-  JSAMPLE bestcolor[BOX_C0_ELEMS * BOX_C1_ELEMS * BOX_C2_ELEMS];
-
-  /* Convert cell coordinates to update box ID */
-  c0 >>= BOX_C0_LOG;
-  c1 >>= BOX_C1_LOG;
-  c2 >>= BOX_C2_LOG;
-
-  /* Compute true coordinates of update box's origin corner.
-   * Actually we compute the coordinates of the center of the corner
-   * histogram cell, which are the lower bounds of the volume we care about.
-   */
-  minc0 = (c0 << BOX_C0_SHIFT) + ((1 << C0_SHIFT) >> 1);
-  minc1 = (c1 << BOX_C1_SHIFT) + ((1 << C1_SHIFT) >> 1);
-  minc2 = (c2 << BOX_C2_SHIFT) + ((1 << C2_SHIFT) >> 1);
-  
-  /* Determine which colormap entries are close enough to be candidates
-   * for the nearest entry to some cell in the update box.
-   */
-  numcolors = find_nearby_colors(cinfo, minc0, minc1, minc2, colorlist);
-
-  /* Determine the actually nearest colors. */
-  find_best_colors(cinfo, minc0, minc1, minc2, numcolors, colorlist,
-		   bestcolor);
-
-  /* Save the best color numbers (plus 1) in the main cache array */
-  c0 <<= BOX_C0_LOG;		/* convert ID back to base cell indexes */
-  c1 <<= BOX_C1_LOG;
-  c2 <<= BOX_C2_LOG;
-  cptr = bestcolor;
-  for (ic0 = 0; ic0 < BOX_C0_ELEMS; ic0++) {
-    for (ic1 = 0; ic1 < BOX_C1_ELEMS; ic1++) {
-      cachep = & histogram[c0+ic0][c1+ic1][c2];
-      for (ic2 = 0; ic2 < BOX_C2_ELEMS; ic2++) {
-	*cachep++ = (histcell) (GETJSAMPLE(*cptr++) + 1);
-      }
-    }
-  }
-}
-
-
-/*
- * Map some rows of pixels to the output colormapped representation.
- */
-
-METHODDEF(void)
-pass2_no_dither (j_decompress_ptr cinfo,
-		 JSAMPARRAY input_buf, JSAMPARRAY output_buf, int num_rows)
-/* This version performs no dithering */
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  hist3d histogram = cquantize->histogram;
-  register JSAMPROW inptr, outptr;
-  register histptr cachep;
-  register int c0, c1, c2;
-  int row;
-  JDIMENSION col;
-  JDIMENSION width = cinfo->output_width;
-
-  for (row = 0; row < num_rows; row++) {
-    inptr = input_buf[row];
-    outptr = output_buf[row];
-    for (col = width; col > 0; col--) {
-      /* get pixel value and index into the cache */
-      c0 = GETJSAMPLE(*inptr++) >> C0_SHIFT;
-      c1 = GETJSAMPLE(*inptr++) >> C1_SHIFT;
-      c2 = GETJSAMPLE(*inptr++) >> C2_SHIFT;
-      cachep = & histogram[c0][c1][c2];
-      /* If we have not seen this color before, find nearest colormap entry */
-      /* and update the cache */
-      if (*cachep == 0)
-	fill_inverse_cmap(cinfo, c0,c1,c2);
-      /* Now emit the colormap index for this cell */
-      *outptr++ = (JSAMPLE) (*cachep - 1);
-    }
-  }
-}
-
-
-METHODDEF(void)
-pass2_fs_dither (j_decompress_ptr cinfo,
-		 JSAMPARRAY input_buf, JSAMPARRAY output_buf, int num_rows)
-/* This version performs Floyd-Steinberg dithering */
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  hist3d histogram = cquantize->histogram;
-  register LOCFSERROR cur0, cur1, cur2;	/* current error or pixel value */
-  LOCFSERROR belowerr0, belowerr1, belowerr2; /* error for pixel below cur */
-  LOCFSERROR bpreverr0, bpreverr1, bpreverr2; /* error for below/prev col */
-  register FSERRPTR errorptr;	/* => fserrors[] at column before current */
-  JSAMPROW inptr;		/* => current input pixel */
-  JSAMPROW outptr;		/* => current output pixel */
-  histptr cachep;
-  int dir;			/* +1 or -1 depending on direction */
-  int dir3;			/* 3*dir, for advancing inptr & errorptr */
-  int row;
-  JDIMENSION col;
-  JDIMENSION width = cinfo->output_width;
-  JSAMPLE *range_limit = cinfo->sample_range_limit;
-  int *error_limit = cquantize->error_limiter;
-  JSAMPROW colormap0 = cinfo->colormap[0];
-  JSAMPROW colormap1 = cinfo->colormap[1];
-  JSAMPROW colormap2 = cinfo->colormap[2];
-  SHIFT_TEMPS
-
-  for (row = 0; row < num_rows; row++) {
-    inptr = input_buf[row];
-    outptr = output_buf[row];
-    if (cquantize->on_odd_row) {
-      /* work right to left in this row */
-      inptr += (width-1) * 3;	/* so point to rightmost pixel */
-      outptr += width-1;
-      dir = -1;
-      dir3 = -3;
-      errorptr = cquantize->fserrors + (width+1)*3; /* => entry after last column */
-      cquantize->on_odd_row = FALSE; /* flip for next time */
-    } else {
-      /* work left to right in this row */
-      dir = 1;
-      dir3 = 3;
-      errorptr = cquantize->fserrors; /* => entry before first real column */
-      cquantize->on_odd_row = TRUE; /* flip for next time */
-    }
-    /* Preset error values: no error propagated to first pixel from left */
-    cur0 = cur1 = cur2 = 0;
-    /* and no error propagated to row below yet */
-    belowerr0 = belowerr1 = belowerr2 = 0;
-    bpreverr0 = bpreverr1 = bpreverr2 = 0;
-
-    for (col = width; col > 0; col--) {
-      /* curN holds the error propagated from the previous pixel on the
-       * current line.  Add the error propagated from the previous line
-       * to form the complete error correction term for this pixel, and
-       * round the error term (which is expressed * 16) to an integer.
-       * RIGHT_SHIFT rounds towards minus infinity, so adding 8 is correct
-       * for either sign of the error value.
-       * Note: errorptr points to *previous* column's array entry.
-       */
-      cur0 = RIGHT_SHIFT(cur0 + errorptr[dir3+0] + 8, 4);
-      cur1 = RIGHT_SHIFT(cur1 + errorptr[dir3+1] + 8, 4);
-      cur2 = RIGHT_SHIFT(cur2 + errorptr[dir3+2] + 8, 4);
-      /* Limit the error using transfer function set by init_error_limit.
-       * See comments with init_error_limit for rationale.
-       */
-      cur0 = error_limit[cur0];
-      cur1 = error_limit[cur1];
-      cur2 = error_limit[cur2];
-      /* Form pixel value + error, and range-limit to 0..MAXJSAMPLE.
-       * The maximum error is +- MAXJSAMPLE (or less with error limiting);
-       * this sets the required size of the range_limit array.
-       */
-      cur0 += GETJSAMPLE(inptr[0]);
-      cur1 += GETJSAMPLE(inptr[1]);
-      cur2 += GETJSAMPLE(inptr[2]);
-      cur0 = GETJSAMPLE(range_limit[cur0]);
-      cur1 = GETJSAMPLE(range_limit[cur1]);
-      cur2 = GETJSAMPLE(range_limit[cur2]);
-      /* Index into the cache with adjusted pixel value */
-      cachep = & histogram[cur0>>C0_SHIFT][cur1>>C1_SHIFT][cur2>>C2_SHIFT];
-      /* If we have not seen this color before, find nearest colormap */
-      /* entry and update the cache */
-      if (*cachep == 0)
-	fill_inverse_cmap(cinfo, cur0>>C0_SHIFT,cur1>>C1_SHIFT,cur2>>C2_SHIFT);
-      /* Now emit the colormap index for this cell */
-      { register int pixcode = *cachep - 1;
-	*outptr = (JSAMPLE) pixcode;
-	/* Compute representation error for this pixel */
-	cur0 -= GETJSAMPLE(colormap0[pixcode]);
-	cur1 -= GETJSAMPLE(colormap1[pixcode]);
-	cur2 -= GETJSAMPLE(colormap2[pixcode]);
-      }
-      /* Compute error fractions to be propagated to adjacent pixels.
-       * Add these into the running sums, and simultaneously shift the
-       * next-line error sums left by 1 column.
-       */
-      { register LOCFSERROR bnexterr, delta;
-
-	bnexterr = cur0;	/* Process component 0 */
-	delta = cur0 * 2;
-	cur0 += delta;		/* form error * 3 */
-	errorptr[0] = (FSERROR) (bpreverr0 + cur0);
-	cur0 += delta;		/* form error * 5 */
-	bpreverr0 = belowerr0 + cur0;
-	belowerr0 = bnexterr;
-	cur0 += delta;		/* form error * 7 */
-	bnexterr = cur1;	/* Process component 1 */
-	delta = cur1 * 2;
-	cur1 += delta;		/* form error * 3 */
-	errorptr[1] = (FSERROR) (bpreverr1 + cur1);
-	cur1 += delta;		/* form error * 5 */
-	bpreverr1 = belowerr1 + cur1;
-	belowerr1 = bnexterr;
-	cur1 += delta;		/* form error * 7 */
-	bnexterr = cur2;	/* Process component 2 */
-	delta = cur2 * 2;
-	cur2 += delta;		/* form error * 3 */
-	errorptr[2] = (FSERROR) (bpreverr2 + cur2);
-	cur2 += delta;		/* form error * 5 */
-	bpreverr2 = belowerr2 + cur2;
-	belowerr2 = bnexterr;
-	cur2 += delta;		/* form error * 7 */
-      }
-      /* At this point curN contains the 7/16 error value to be propagated
-       * to the next pixel on the current line, and all the errors for the
-       * next line have been shifted over.  We are therefore ready to move on.
-       */
-      inptr += dir3;		/* Advance pixel pointers to next column */
-      outptr += dir;
-      errorptr += dir3;		/* advance errorptr to current column */
-    }
-    /* Post-loop cleanup: we must unload the final error values into the
-     * final fserrors[] entry.  Note we need not unload belowerrN because
-     * it is for the dummy column before or after the actual array.
-     */
-    errorptr[0] = (FSERROR) bpreverr0; /* unload prev errs into array */
-    errorptr[1] = (FSERROR) bpreverr1;
-    errorptr[2] = (FSERROR) bpreverr2;
-  }
-}
-
-
-/*
- * Initialize the error-limiting transfer function (lookup table).
- * The raw F-S error computation can potentially compute error values of up to
- * +- MAXJSAMPLE.  But we want the maximum correction applied to a pixel to be
- * much less, otherwise obviously wrong pixels will be created.  (Typical
- * effects include weird fringes at color-area boundaries, isolated bright
- * pixels in a dark area, etc.)  The standard advice for avoiding this problem
- * is to ensure that the "corners" of the color cube are allocated as output
- * colors; then repeated errors in the same direction cannot cause cascading
- * error buildup.  However, that only prevents the error from getting
- * completely out of hand; Aaron Giles reports that error limiting improves
- * the results even with corner colors allocated.
- * A simple clamping of the error values to about +- MAXJSAMPLE/8 works pretty
- * well, but the smoother transfer function used below is even better.  Thanks
- * to Aaron Giles for this idea.
- */
-
-LOCAL(void)
-init_error_limit (j_decompress_ptr cinfo)
-/* Allocate and fill in the error_limiter table */
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  int * table;
-  int in, out;
-
-  table = (int *) (*cinfo->mem->alloc_small)
-    ((j_common_ptr) cinfo, JPOOL_IMAGE, (MAXJSAMPLE*2+1) * SIZEOF(int));
-  table += MAXJSAMPLE;		/* so can index -MAXJSAMPLE .. +MAXJSAMPLE */
-  cquantize->error_limiter = table;
-
-#define STEPSIZE ((MAXJSAMPLE+1)/16)
-  /* Map errors 1:1 up to +- MAXJSAMPLE/16 */
-  out = 0;
-  for (in = 0; in < STEPSIZE; in++, out++) {
-    table[in] = out; table[-in] = -out;
-  }
-  /* Map errors 1:2 up to +- 3*MAXJSAMPLE/16 */
-  for (; in < STEPSIZE*3; in++, out += (in&1) ? 0 : 1) {
-    table[in] = out; table[-in] = -out;
-  }
-  /* Clamp the rest to final out value (which is (MAXJSAMPLE+1)/8) */
-  for (; in <= MAXJSAMPLE; in++) {
-    table[in] = out; table[-in] = -out;
-  }
-#undef STEPSIZE
-}
-
-
-/*
- * Finish up at the end of each pass.
- */
-
-METHODDEF(void)
-finish_pass1 (j_decompress_ptr cinfo)
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-
-  /* Select the representative colors and fill in cinfo->colormap */
-  cinfo->colormap = cquantize->sv_colormap;
-  select_colors(cinfo, cquantize->desired);
-  /* Force next pass to zero the color index table */
-  cquantize->needs_zeroed = TRUE;
-}
-
-
-METHODDEF(void)
-finish_pass2 (j_decompress_ptr cinfo)
-{
-  /* no work */
-}
-
-
-/*
- * Initialize for each processing pass.
- */
-
-METHODDEF(void)
-start_pass_2_quant (j_decompress_ptr cinfo, boolean is_pre_scan)
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-  hist3d histogram = cquantize->histogram;
-  int i;
-
-  /* Only F-S dithering or no dithering is supported. */
-  /* If user asks for ordered dither, give him F-S. */
-  if (cinfo->dither_mode != JDITHER_NONE)
-    cinfo->dither_mode = JDITHER_FS;
-
-  if (is_pre_scan) {
-    /* Set up method pointers */
-    cquantize->pub.color_quantize = prescan_quantize;
-    cquantize->pub.finish_pass = finish_pass1;
-    cquantize->needs_zeroed = TRUE; /* Always zero histogram */
-  } else {
-    /* Set up method pointers */
-    if (cinfo->dither_mode == JDITHER_FS)
-      cquantize->pub.color_quantize = pass2_fs_dither;
-    else
-      cquantize->pub.color_quantize = pass2_no_dither;
-    cquantize->pub.finish_pass = finish_pass2;
-
-    /* Make sure color count is acceptable */
-    i = cinfo->actual_number_of_colors;
-    if (i < 1)
-      ERREXIT1(cinfo, JERR_QUANT_FEW_COLORS, 1);
-    if (i > MAXNUMCOLORS)
-      ERREXIT1(cinfo, JERR_QUANT_MANY_COLORS, MAXNUMCOLORS);
-
-    if (cinfo->dither_mode == JDITHER_FS) {
-      size_t arraysize = (size_t) ((cinfo->output_width + 2) *
-				   (3 * SIZEOF(FSERROR)));
-      /* Allocate Floyd-Steinberg workspace if we didn't already. */
-      if (cquantize->fserrors == NULL)
-	cquantize->fserrors = (FSERRPTR) (*cinfo->mem->alloc_large)
-	  ((j_common_ptr) cinfo, JPOOL_IMAGE, arraysize);
-      /* Initialize the propagated errors to zero. */
-      jzero_far((void FAR *) cquantize->fserrors, arraysize);
-      /* Make the error-limit table if we didn't already. */
-      if (cquantize->error_limiter == NULL)
-	init_error_limit(cinfo);
-      cquantize->on_odd_row = FALSE;
-    }
-
-  }
-  /* Zero the histogram or inverse color map, if necessary */
-  if (cquantize->needs_zeroed) {
-    for (i = 0; i < HIST_C0_ELEMS; i++) {
-      jzero_far((void FAR *) histogram[i],
-		HIST_C1_ELEMS*HIST_C2_ELEMS * SIZEOF(histcell));
-    }
-    cquantize->needs_zeroed = FALSE;
-  }
-}
-
-
-/*
- * Switch to a new external colormap between output passes.
- */
-
-METHODDEF(void)
-new_color_map_2_quant (j_decompress_ptr cinfo)
-{
-  my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
-
-  /* Reset the inverse color map */
-  cquantize->needs_zeroed = TRUE;
-}
-
-
-/*
- * Module initialization routine for 2-pass color quantization.
- */
-
-GLOBAL(void)
-jinit_2pass_quantizer (j_decompress_ptr cinfo)
-{
-  my_cquantize_ptr cquantize;
-  int i;
-
-  cquantize = (my_cquantize_ptr)
-    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
-				SIZEOF(my_cquantizer));
-  cinfo->cquantize = (struct jpeg_color_quantizer *) cquantize;
-  cquantize->pub.start_pass = start_pass_2_quant;
-  cquantize->pub.new_color_map = new_color_map_2_quant;
-  cquantize->fserrors = NULL;	/* flag optional arrays not allocated */
-  cquantize->error_limiter = NULL;
-
-  /* Make sure jdmaster didn't give me a case I can't handle */
-  if (cinfo->out_color_components != 3)
-    ERREXIT(cinfo, JERR_NOTIMPL);
-
-  /* Allocate the histogram/inverse colormap storage */
-  cquantize->histogram = (hist3d) (*cinfo->mem->alloc_small)
-    ((j_common_ptr) cinfo, JPOOL_IMAGE, HIST_C0_ELEMS * SIZEOF(hist2d));
-  for (i = 0; i < HIST_C0_ELEMS; i++) {
-    cquantize->histogram[i] = (hist2d) (*cinfo->mem->alloc_large)
-      ((j_common_ptr) cinfo, JPOOL_IMAGE,
-       HIST_C1_ELEMS*HIST_C2_ELEMS * SIZEOF(histcell));
-  }
-  cquantize->needs_zeroed = TRUE; /* histogram is garbage now */
-
-  /* Allocate storage for the completed colormap, if required.
-   * We do this now since it is FAR storage and may affect
-   * the memory manager's space calculations.
-   */
-  if (cinfo->enable_2pass_quant) {
-    /* Make sure color count is acceptable */
-    int desired = cinfo->desired_number_of_colors;
-    /* Lower bound on # of colors ... somewhat arbitrary as long as > 0 */
-    if (desired < 8)
-      ERREXIT1(cinfo, JERR_QUANT_FEW_COLORS, 8);
-    /* Make sure colormap indexes can be represented by JSAMPLEs */
-    if (desired > MAXNUMCOLORS)
-      ERREXIT1(cinfo, JERR_QUANT_MANY_COLORS, MAXNUMCOLORS);
-    cquantize->sv_colormap = (*cinfo->mem->alloc_sarray)
-      ((j_common_ptr) cinfo,JPOOL_IMAGE, (JDIMENSION) desired, (JDIMENSION) 3);
-    cquantize->desired = desired;
-  } else
-    cquantize->sv_colormap = NULL;
-
-  /* Only F-S dithering or no dithering is supported. */
-  /* If user asks for ordered dither, give him F-S. */
-  if (cinfo->dither_mode != JDITHER_NONE)
-    cinfo->dither_mode = JDITHER_FS;
-
-  /* Allocate Floyd-Steinberg workspace if necessary.
-   * This isn't really needed until pass 2, but again it is FAR storage.
-   * Although we will cope with a later change in dither_mode,
-   * we do not promise to honor max_memory_to_use if dither_mode changes.
-   */
-  if (cinfo->dither_mode == JDITHER_FS) {
-    cquantize->fserrors = (FSERRPTR) (*cinfo->mem->alloc_large)
-      ((j_common_ptr) cinfo, JPOOL_IMAGE,
-       (size_t) ((cinfo->output_width + 2) * (3 * SIZEOF(FSERROR))));
-    /* Might as well create the error-limiting table too. */
-    init_error_limit(cinfo);
-  }
-}
-
-#endif /* TQUANT_2PASS_SUPPORTED */
diff --git a/src/3rdparty/libjpeg/jutils.c b/src/3rdparty/libjpeg/jutils.c
deleted file mode 100644
index d18a95556..000000000
--- a/src/3rdparty/libjpeg/jutils.c
+++ /dev/null
@@ -1,179 +0,0 @@
-/*
- * jutils.c
- *
- * Copyright (C) 1991-1996, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains tables and miscellaneous utility routines needed
- * for both compression and decompression.
- * Note we prefix all global names with "j" to minimize conflicts with
- * a surrounding application.
- */
-
-#define JPEG_INTERNALS
-#include "jinclude.h"
-#include "jpeglib.h"
-
-
-/*
- * jpeg_zigzag_order[i] is the zigzag-order position of the i'th element
- * of a DCT block read in natural order (left to right, top to bottom).
- */
-
-#if 0				/* This table is not actually needed in v6a */
-
-const int jpeg_zigzag_order[DCTSIZE2] = {
-   0,  1,  5,  6, 14, 15, 27, 28,
-   2,  4,  7, 13, 16, 26, 29, 42,
-   3,  8, 12, 17, 25, 30, 41, 43,
-   9, 11, 18, 24, 31, 40, 44, 53,
-  10, 19, 23, 32, 39, 45, 52, 54,
-  20, 22, 33, 38, 46, 51, 55, 60,
-  21, 34, 37, 47, 50, 56, 59, 61,
-  35, 36, 48, 49, 57, 58, 62, 63
-};
-
-#endif
-
-/*
- * jpeg_natural_order[i] is the natural-order position of the i'th element
- * of zigzag order.
- *
- * When reading corrupted data, the Huffman decoders could attempt
- * to reference an entry beyond the end of this array (if the decoded
- * zero run length reaches past the end of the block).  To prevent
- * wild stores without adding an inner-loop test, we put some extra
- * "63"s after the real entries.  This will cause the extra coefficient
- * to be stored in location 63 of the block, not somewhere random.
- * The worst case would be a run-length of 15, which means we need 16
- * fake entries.
- */
-
-const int jpeg_natural_order[DCTSIZE2+16] = {
-  0,  1,  8, 16,  9,  2,  3, 10,
- 17, 24, 32, 25, 18, 11,  4,  5,
- 12, 19, 26, 33, 40, 48, 41, 34,
- 27, 20, 13,  6,  7, 14, 21, 28,
- 35, 42, 49, 56, 57, 50, 43, 36,
- 29, 22, 15, 23, 30, 37, 44, 51,
- 58, 59, 52, 45, 38, 31, 39, 46,
- 53, 60, 61, 54, 47, 55, 62, 63,
- 63, 63, 63, 63, 63, 63, 63, 63, /* extra entries for safety in decoder */
- 63, 63, 63, 63, 63, 63, 63, 63
-};
-
-
-/*
- * Arithmetic utilities
- */
-
-GLOBAL(long)
-jdiv_round_up (long a, long b)
-/* Compute a/b rounded up to next integer, ie, ceil(a/b) */
-/* Assumes a >= 0, b > 0 */
-{
-  return (a + b - 1L) / b;
-}
-
-
-GLOBAL(long)
-jround_up (long a, long b)
-/* Compute a rounded up to next multiple of b, ie, ceil(a/b)*b */
-/* Assumes a >= 0, b > 0 */
-{
-  a += b - 1L;
-  return a - (a % b);
-}
-
-
-/* On normal machines we can apply MEMCOPY() and MEMZERO() to sample arrays
- * and coefficient-block arrays.  This won't work on 80x86 because the arrays
- * are FAR and we're assuming a small-pointer memory model.  However, some
- * DOS compilers provide far-pointer versions of memcpy() and memset() even
- * in the small-model libraries.  These will be used if USE_FMEM is defined.
- * Otherwise, the routines below do it the hard way.  (The performance cost
- * is not all that great, because these routines aren't very heavily used.)
- */
-
-#ifndef NEED_FAR_POINTERS	/* normal case, same as regular macros */
-#define FMEMCOPY(dest,src,size)	MEMCOPY(dest,src,size)
-#define FMEMZERO(target,size)	MEMZERO(target,size)
-#else				/* 80x86 case, define if we can */
-#ifdef USE_FMEM
-#define FMEMCOPY(dest,src,size)	_fmemcpy((void FAR *)(dest), (const void FAR *)(src), (size_t)(size))
-#define FMEMZERO(target,size)	_fmemset((void FAR *)(target), 0, (size_t)(size))
-#endif
-#endif
-
-
-GLOBAL(void)
-jcopy_sample_rows (JSAMPARRAY input_array, int source_row,
-		   JSAMPARRAY output_array, int dest_row,
-		   int num_rows, JDIMENSION num_cols)
-/* Copy some rows of samples from one place to another.
- * num_rows rows are copied from input_array[source_row++]
- * to output_array[dest_row++]; these areas may overlap for duplication.
- * The source and destination arrays must be at least as wide as num_cols.
- */
-{
-  register JSAMPROW inptr, outptr;
-#ifdef FMEMCOPY
-  register size_t count = (size_t) (num_cols * SIZEOF(JSAMPLE));
-#else
-  register JDIMENSION count;
-#endif
-  register int row;
-
-  input_array += source_row;
-  output_array += dest_row;
-
-  for (row = num_rows; row > 0; row--) {
-    inptr = *input_array++;
-    outptr = *output_array++;
-#ifdef FMEMCOPY
-    FMEMCOPY(outptr, inptr, count);
-#else
-    for (count = num_cols; count > 0; count--)
-      *outptr++ = *inptr++;	/* needn't bother with GETJSAMPLE() here */
-#endif
-  }
-}
-
-
-GLOBAL(void)
-jcopy_block_row (JBLOCKROW input_row, JBLOCKROW output_row,
-		 JDIMENSION num_blocks)
-/* Copy a row of coefficient blocks from one place to another. */
-{
-#ifdef FMEMCOPY
-  FMEMCOPY(output_row, input_row, num_blocks * (DCTSIZE2 * SIZEOF(JCOEF)));
-#else
-  register JCOEFPTR inptr, outptr;
-  register long count;
-
-  inptr = (JCOEFPTR) input_row;
-  outptr = (JCOEFPTR) output_row;
-  for (count = (long) num_blocks * DCTSIZE2; count > 0; count--) {
-    *outptr++ = *inptr++;
-  }
-#endif
-}
-
-
-GLOBAL(void)
-jzero_far (void FAR * target, size_t bytestozero)
-/* Zero out a chunk of FAR memory. */
-/* This might be sample-array data, block-array data, or alloc_large data. */
-{
-#ifdef FMEMZERO
-  FMEMZERO(target, bytestozero);
-#else
-  register char FAR * ptr = (char FAR *) target;
-  register size_t count;
-
-  for (count = bytestozero; count > 0; count--) {
-    *ptr++ = 0;
-  }
-#endif
-}
diff --git a/src/3rdparty/libjpeg/jversion.h b/src/3rdparty/libjpeg/jversion.h
deleted file mode 100644
index 6472c58d3..000000000
--- a/src/3rdparty/libjpeg/jversion.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * jversion.h
- *
- * Copyright (C) 1991-1998, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This file contains software version identification.
- */
-
-
-#define JVERSION	"6b  27-Mar-1998"
-
-#define JCOPYRIGHT	"Copyright (C) 1998, Thomas G. Lane"
diff --git a/src/3rdparty/libjpeg/libjpeg.doc b/src/3rdparty/libjpeg/libjpeg.doc
deleted file mode 100644
index d8fb38759..000000000
--- a/src/3rdparty/libjpeg/libjpeg.doc
+++ /dev/null
@@ -1,3006 +0,0 @@
-USING THE IJG JPEG LIBRARY
-
-Copyright (C) 1994-1998, Thomas G. Lane.
-This file is part of the Independent JPEG Group's software.
-For conditions of distribution and use, see the accompanying README file.
-
-
-This file describes how to use the IJG JPEG library within an application
-program.  Read it if you want to write a program that uses the library.
-
-The file example.c provides heavily commented skeleton code for calling the
-JPEG library.  Also see jpeglib.h (the include file to be used by application
-programs) for full details about data structures and function parameter lists.
-The library source code, of course, is the ultimate reference.
-
-Note that there have been *major* changes from the application interface
-presented by IJG version 4 and earlier versions.  The old design had several
-inherent limitations, and it had accumulated a lot of cruft as we added
-features while trying to minimize application-interface changes.  We have
-sacrificed backward compatibility in the version 5 rewrite, but we think the
-improvements justify this.
-
-
-TABLE OF CONTENTS
------------------
-
-Overview:
-	Functions provided by the library
-	Outline of typical usage
-Basic library usage:
-	Data formats
-	Compression details
-	Decompression details
-	Mechanics of usage: include files, linking, etc
-Advanced features:
-	Compression parameter selection
-	Decompression parameter selection
-	Special color spaces
-	Error handling
-	Compressed data handling (source and destination managers)
-	I/O suspension
-	Progressive JPEG support
-	Buffered-image mode
-	Abbreviated datastreams and multiple images
-	Special markers
-	Raw (downsampled) image data
-	Really raw data: DCT coefficients
-	Progress monitoring
-	Memory management
-	Memory usage
-	Library compile-time options
-	Portability considerations
-	Notes for MS-DOS implementors
-
-You should read at least the overview and basic usage sections before trying
-to program with the library.  The sections on advanced features can be read
-if and when you need them.
-
-
-OVERVIEW
-========
-
-Functions provided by the library
----------------------------------
-
-The IJG JPEG library provides C code to read and write JPEG-compressed image
-files.  The surrounding application program receives or supplies image data a
-scanline at a time, using a straightforward uncompressed image format.  All
-details of color conversion and other preprocessing/postprocessing can be
-handled by the library.
-
-The library includes a substantial amount of code that is not covered by the
-JPEG standard but is necessary for typical applications of JPEG.  These
-functions preprocess the image before JPEG compression or postprocess it after
-decompression.  They include colorspace conversion, downsampling/upsampling,
-and color quantization.  The application indirectly selects use of this code
-by specifying the format in which it wishes to supply or receive image data.
-For example, if colormapped output is requested, then the decompression
-library automatically invokes color quantization.
-
-A wide range of quality vs. speed tradeoffs are possible in JPEG processing,
-and even more so in decompression postprocessing.  The decompression library
-provides multiple implementations that cover most of the useful tradeoffs,
-ranging from very-high-quality down to fast-preview operation.  On the
-compression side we have generally not provided low-quality choices, since
-compression is normally less time-critical.  It should be understood that the
-low-quality modes may not meet the JPEG standard's accuracy requirements;
-nonetheless, they are useful for viewers.
-
-A word about functions *not* provided by the library.  We handle a subset of
-the ISO JPEG standard; most baseline, extended-sequential, and progressive
-JPEG processes are supported.  (Our subset includes all features now in common
-use.)  Unsupported ISO options include:
-	* Hierarchical storage
-	* Lossless JPEG
-	* Arithmetic entropy coding (unsupported for legal reasons)
-	* DNL marker
-	* Nonintegral subsampling ratios
-We support both 8- and 12-bit data precision, but this is a compile-time
-choice rather than a run-time choice; hence it is difficult to use both
-precisions in a single application.
-
-By itself, the library handles only interchange JPEG datastreams --- in
-particular the widely used JFIF file format.  The library can be used by
-surrounding code to process interchange or abbreviated JPEG datastreams that
-are embedded in more complex file formats.  (For example, this library is
-used by the free LIBTIFF library to support JPEG compression in TIFF.)
-
-
-Outline of typical usage
-------------------------
-
-The rough outline of a JPEG compression operation is:
-
-	Allocate and initialize a JPEG compression object
-	Specify the destination for the compressed data (eg, a file)
-	Set parameters for compression, including image size & colorspace
-	jpeg_start_compress(...);
-	while (scan lines remain to be written)
-		jpeg_write_scanlines(...);
-	jpeg_finish_compress(...);
-	Release the JPEG compression object
-
-A JPEG compression object holds parameters and working state for the JPEG
-library.  We make creation/destruction of the object separate from starting
-or finishing compression of an image; the same object can be re-used for a
-series of image compression operations.  This makes it easy to re-use the
-same parameter settings for a sequence of images.  Re-use of a JPEG object
-also has important implications for processing abbreviated JPEG datastreams,
-as discussed later.
-
-The image data to be compressed is supplied to jpeg_write_scanlines() from
-in-memory buffers.  If the application is doing file-to-file compression,
-reading image data from the source file is the application's responsibility.
-The library emits compressed data by calling a "data destination manager",
-which typically will write the data into a file; but the application can
-provide its own destination manager to do something else.
-
-Similarly, the rough outline of a JPEG decompression operation is:
-
-	Allocate and initialize a JPEG decompression object
-	Specify the source of the compressed data (eg, a file)
-	Call jpeg_read_header() to obtain image info
-	Set parameters for decompression
-	jpeg_start_decompress(...);
-	while (scan lines remain to be read)
-		jpeg_read_scanlines(...);
-	jpeg_finish_decompress(...);
-	Release the JPEG decompression object
-
-This is comparable to the compression outline except that reading the
-datastream header is a separate step.  This is helpful because information
-about the image's size, colorspace, etc is available when the application
-selects decompression parameters.  For example, the application can choose an
-output scaling ratio that will fit the image into the available screen size.
-
-The decompression library obtains compressed data by calling a data source
-manager, which typically will read the data from a file; but other behaviors
-can be obtained with a custom source manager.  Decompressed data is delivered
-into in-memory buffers passed to jpeg_read_scanlines().
-
-It is possible to abort an incomplete compression or decompression operation
-by calling jpeg_abort(); or, if you do not need to retain the JPEG object,
-simply release it by calling jpeg_destroy().
-
-JPEG compression and decompression objects are two separate struct types.
-However, they share some common fields, and certain routines such as
-jpeg_destroy() can work on either type of object.
-
-The JPEG library has no static variables: all state is in the compression
-or decompression object.  Therefore it is possible to process multiple
-compression and decompression operations concurrently, using multiple JPEG
-objects.
-
-Both compression and decompression can be done in an incremental memory-to-
-memory fashion, if suitable source/destination managers are used.  See the
-section on "I/O suspension" for more details.
-
-
-BASIC LIBRARY USAGE
-===================
-
-Data formats
-------------
-
-Before diving into procedural details, it is helpful to understand the
-image data format that the JPEG library expects or returns.
-
-The standard input image format is a rectangular array of pixels, with each
-pixel having the same number of "component" or "sample" values (color
-channels).  You must specify how many components there are and the colorspace
-interpretation of the components.  Most applications will use RGB data
-(three components per pixel) or grayscale data (one component per pixel).
-PLEASE NOTE THAT RGB DATA IS THREE SAMPLES PER PIXEL, GRAYSCALE ONLY ONE.
-A remarkable number of people manage to miss this, only to find that their
-programs don't work with grayscale JPEG files.
-
-There is no provision for colormapped input.  JPEG files are always full-color
-or full grayscale (or sometimes another colorspace such as CMYK).  You can
-feed in a colormapped image by expanding it to full-color format.  However
-JPEG often doesn't work very well with source data that has been colormapped,
-because of dithering noise.  This is discussed in more detail in the JPEG FAQ
-and the other references mentioned in the README file.
-
-Pixels are stored by scanlines, with each scanline running from left to
-right.  The component values for each pixel are adjacent in the row; for
-example, R,G,B,R,G,B,R,G,B,... for 24-bit RGB color.  Each scanline is an
-array of data type JSAMPLE --- which is typically "unsigned char", unless
-you've changed jmorecfg.h.  (You can also change the RGB pixel layout, say
-to B,G,R order, by modifying jmorecfg.h.  But see the restrictions listed in
-that file before doing so.)
-
-A 2-D array of pixels is formed by making a list of pointers to the starts of
-scanlines; so the scanlines need not be physically adjacent in memory.  Even
-if you process just one scanline at a time, you must make a one-element
-pointer array to conform to this structure.  Pointers to JSAMPLE rows are of
-type JSAMPROW, and the pointer to the pointer array is of type JSAMPARRAY.
-
-The library accepts or supplies one or more complete scanlines per call.
-It is not possible to process part of a row at a time.  Scanlines are always
-processed top-to-bottom.  You can process an entire image in one call if you
-have it all in memory, but usually it's simplest to process one scanline at
-a time.
-
-For best results, source data values should have the precision specified by
-BITS_IN_JSAMPLE (normally 8 bits).  For instance, if you choose to compress
-data that's only 6 bits/channel, you should left-justify each value in a
-byte before passing it to the compressor.  If you need to compress data
-that has more than 8 bits/channel, compile with BITS_IN_JSAMPLE = 12.
-(See "Library compile-time options", later.)
-
-
-The data format returned by the decompressor is the same in all details,
-except that colormapped output is supported.  (Again, a JPEG file is never
-colormapped.  But you can ask the decompressor to perform on-the-fly color
-quantization to deliver colormapped output.)  If you request colormapped
-output then the returned data array contains a single JSAMPLE per pixel;
-its value is an index into a color map.  The color map is represented as
-a 2-D JSAMPARRAY in which each row holds the values of one color component,
-that is, colormap[i][j] is the value of the i'th color component for pixel
-value (map index) j.  Note that since the colormap indexes are stored in
-JSAMPLEs, the maximum number of colors is limited by the size of JSAMPLE
-(ie, at most 256 colors for an 8-bit JPEG library).
-
-
-Compression details
--------------------
-
-Here we revisit the JPEG compression outline given in the overview.
-
-1. Allocate and initialize a JPEG compression object.
-
-A JPEG compression object is a "struct jpeg_compress_struct".  (It also has
-a bunch of subsidiary structures which are allocated via malloc(), but the
-application doesn't control those directly.)  This struct can be just a local
-variable in the calling routine, if a single routine is going to execute the
-whole JPEG compression sequence.  Otherwise it can be static or allocated
-from malloc().
-
-You will also need a structure representing a JPEG error handler.  The part
-of this that the library cares about is a "struct jpeg_error_mgr".  If you
-are providing your own error handler, you'll typically want to embed the
-jpeg_error_mgr struct in a larger structure; this is discussed later under
-"Error handling".  For now we'll assume you are just using the default error
-handler.  The default error handler will print JPEG error/warning messages
-on stderr, and it will call exit() if a fatal error occurs.
-
-You must initialize the error handler structure, store a pointer to it into
-the JPEG object's "err" field, and then call jpeg_create_compress() to
-initialize the rest of the JPEG object.
-
-Typical code for this step, if you are using the default error handler, is
-
-	struct jpeg_compress_struct cinfo;
-	struct jpeg_error_mgr jerr;
-	...
-	cinfo.err = jpeg_std_error(&jerr);
-	jpeg_create_compress(&cinfo);
-
-jpeg_create_compress allocates a small amount of memory, so it could fail
-if you are out of memory.  In that case it will exit via the error handler;
-that's why the error handler must be initialized first.
-
-
-2. Specify the destination for the compressed data (eg, a file).
-
-As previously mentioned, the JPEG library delivers compressed data to a
-"data destination" module.  The library includes one data destination
-module which knows how to write to a stdio stream.  You can use your own
-destination module if you want to do something else, as discussed later.
-
-If you use the standard destination module, you must open the target stdio
-stream beforehand.  Typical code for this step looks like:
-
-	FILE * outfile;
-	...
-	if ((outfile = fopen(filename, "wb")) == NULL) {
-	    fprintf(stderr, "can't open %s\n", filename);
-	    exit(1);
-	}
-	jpeg_stdio_dest(&cinfo, outfile);
-
-where the last line invokes the standard destination module.
-
-WARNING: it is critical that the binary compressed data be delivered to the
-output file unchanged.  On non-Unix systems the stdio library may perform
-newline translation or otherwise corrupt binary data.  To suppress this
-behavior, you may need to use a "b" option to fopen (as shown above), or use
-setmode() or another routine to put the stdio stream in binary mode.  See
-cjpeg.c and djpeg.c for code that has been found to work on many systems.
-
-You can select the data destination after setting other parameters (step 3),
-if that's more convenient.  You may not change the destination between
-calling jpeg_start_compress() and jpeg_finish_compress().
-
-
-3. Set parameters for compression, including image size & colorspace.
-
-You must supply information about the source image by setting the following
-fields in the JPEG object (cinfo structure):
-
-	image_width		Width of image, in pixels
-	image_height		Height of image, in pixels
-	input_components	Number of color channels (samples per pixel)
-	in_color_space		Color space of source image
-
-The image dimensions are, hopefully, obvious.  JPEG supports image dimensions
-of 1 to 64K pixels in either direction.  The input color space is typically
-RGB or grayscale, and input_components is 3 or 1 accordingly.  (See "Special
-color spaces", later, for more info.)  The in_color_space field must be
-assigned one of the J_COLOR_SPACE enum constants, typically JCS_RGB or
-JCS_GRAYSCALE.
-
-JPEG has a large number of compression parameters that determine how the
-image is encoded.  Most applications don't need or want to know about all
-these parameters.  You can set all the parameters to reasonable defaults by
-calling jpeg_set_defaults(); then, if there are particular values you want
-to change, you can do so after that.  The "Compression parameter selection"
-section tells about all the parameters.
-
-You must set in_color_space correctly before calling jpeg_set_defaults(),
-because the defaults depend on the source image colorspace.  However the
-other three source image parameters need not be valid until you call
-jpeg_start_compress().  There's no harm in calling jpeg_set_defaults() more
-than once, if that happens to be convenient.
-
-Typical code for a 24-bit RGB source image is
-
-	cinfo.image_width = Width; 	/* image width and height, in pixels */
-	cinfo.image_height = Height;
-	cinfo.input_components = 3;	/* # of color components per pixel */
-	cinfo.in_color_space = JCS_RGB; /* colorspace of input image */
-
-	jpeg_set_defaults(&cinfo);
-	/* Make optional parameter settings here */
-
-
-4. jpeg_start_compress(...);
-
-After you have established the data destination and set all the necessary
-source image info and other parameters, call jpeg_start_compress() to begin
-a compression cycle.  This will initialize internal state, allocate working
-storage, and emit the first few bytes of the JPEG datastream header.
-
-Typical code:
-
-	jpeg_start_compress(&cinfo, TRUE);
-
-The "TRUE" parameter ensures that a complete JPEG interchange datastream
-will be written.  This is appropriate in most cases.  If you think you might
-want to use an abbreviated datastream, read the section on abbreviated
-datastreams, below.
-
-Once you have called jpeg_start_compress(), you may not alter any JPEG
-parameters or other fields of the JPEG object until you have completed
-the compression cycle.
-
-
-5. while (scan lines remain to be written)
-	jpeg_write_scanlines(...);
-
-Now write all the required image data by calling jpeg_write_scanlines()
-one or more times.  You can pass one or more scanlines in each call, up
-to the total image height.  In most applications it is convenient to pass
-just one or a few scanlines at a time.  The expected format for the passed
-data is discussed under "Data formats", above.
-
-Image data should be written in top-to-bottom scanline order.  The JPEG spec
-contains some weasel wording about how top and bottom are application-defined
-terms (a curious interpretation of the English language...) but if you want
-your files to be compatible with everyone else's, you WILL use top-to-bottom
-order.  If the source data must be read in bottom-to-top order, you can use
-the JPEG library's virtual array mechanism to invert the data efficiently.
-Examples of this can be found in the sample application cjpeg.
-
-The library maintains a count of the number of scanlines written so far
-in the next_scanline field of the JPEG object.  Usually you can just use
-this variable as the loop counter, so that the loop test looks like
-"while (cinfo.next_scanline < cinfo.image_height)".
-
-Code for this step depends heavily on the way that you store the source data.
-example.c shows the following code for the case of a full-size 2-D source
-array containing 3-byte RGB pixels:
-
-	JSAMPROW row_pointer[1];	/* pointer to a single row */
-	int row_stride;			/* physical row width in buffer */
-
-	row_stride = image_width * 3;	/* JSAMPLEs per row in image_buffer */
-
-	while (cinfo.next_scanline < cinfo.image_height) {
-	    row_pointer[0] = & image_buffer[cinfo.next_scanline * row_stride];
-	    jpeg_write_scanlines(&cinfo, row_pointer, 1);
-	}
-
-jpeg_write_scanlines() returns the number of scanlines actually written.
-This will normally be equal to the number passed in, so you can usually
-ignore the return value.  It is different in just two cases:
-  * If you try to write more scanlines than the declared image height,
-    the additional scanlines are ignored.
-  * If you use a suspending data destination manager, output buffer overrun
-    will cause the compressor to return before accepting all the passed lines.
-    This feature is discussed under "I/O suspension", below.  The normal
-    stdio destination manager will NOT cause this to happen.
-In any case, the return value is the same as the change in the value of
-next_scanline.
-
-
-6. jpeg_finish_compress(...);
-
-After all the image data has been written, call jpeg_finish_compress() to
-complete the compression cycle.  This step is ESSENTIAL to ensure that the
-last bufferload of data is written to the data destination.
-jpeg_finish_compress() also releases working memory associated with the JPEG
-object.
-
-Typical code:
-
-	jpeg_finish_compress(&cinfo);
-
-If using the stdio destination manager, don't forget to close the output
-stdio stream (if necessary) afterwards.
-
-If you have requested a multi-pass operating mode, such as Huffman code
-optimization, jpeg_finish_compress() will perform the additional passes using
-data buffered by the first pass.  In this case jpeg_finish_compress() may take
-quite a while to complete.  With the default compression parameters, this will
-not happen.
-
-It is an error to call jpeg_finish_compress() before writing the necessary
-total number of scanlines.  If you wish to abort compression, call
-jpeg_abort() as discussed below.
-
-After completing a compression cycle, you may dispose of the JPEG object
-as discussed next, or you may use it to compress another image.  In that case
-return to step 2, 3, or 4 as appropriate.  If you do not change the
-destination manager, the new datastream will be written to the same target.
-If you do not change any JPEG parameters, the new datastream will be written
-with the same parameters as before.  Note that you can change the input image
-dimensions freely between cycles, but if you change the input colorspace, you
-should call jpeg_set_defaults() to adjust for the new colorspace; and then
-you'll need to repeat all of step 3.
-
-
-7. Release the JPEG compression object.
-
-When you are done with a JPEG compression object, destroy it by calling
-jpeg_destroy_compress().  This will free all subsidiary memory (regardless of
-the previous state of the object).  Or you can call jpeg_destroy(), which
-works for either compression or decompression objects --- this may be more
-convenient if you are sharing code between compression and decompression
-cases.  (Actually, these routines are equivalent except for the declared type
-of the passed pointer.  To avoid gripes from ANSI C compilers, jpeg_destroy()
-should be passed a j_common_ptr.)
-
-If you allocated the jpeg_compress_struct structure from malloc(), freeing
-it is your responsibility --- jpeg_destroy() won't.  Ditto for the error
-handler structure.
-
-Typical code:
-
-	jpeg_destroy_compress(&cinfo);
-
-
-8. Aborting.
-
-If you decide to abort a compression cycle before finishing, you can clean up
-in either of two ways:
-
-* If you don't need the JPEG object any more, just call
-  jpeg_destroy_compress() or jpeg_destroy() to release memory.  This is
-  legitimate at any point after calling jpeg_create_compress() --- in fact,
-  it's safe even if jpeg_create_compress() fails.
-
-* If you want to re-use the JPEG object, call jpeg_abort_compress(), or call
-  jpeg_abort() which works on both compression and decompression objects.
-  This will return the object to an idle state, releasing any working memory.
-  jpeg_abort() is allowed at any time after successful object creation.
-
-Note that cleaning up the data destination, if required, is your
-responsibility; neither of these routines will call term_destination().
-(See "Compressed data handling", below, for more about that.)
-
-jpeg_destroy() and jpeg_abort() are the only safe calls to make on a JPEG
-object that has reported an error by calling error_exit (see "Error handling"
-for more info).  The internal state of such an object is likely to be out of
-whack.  Either of these two routines will return the object to a known state.
-
-
-Decompression details
----------------------
-
-Here we revisit the JPEG decompression outline given in the overview.
-
-1. Allocate and initialize a JPEG decompression object.
-
-This is just like initialization for compression, as discussed above,
-except that the object is a "struct jpeg_decompress_struct" and you
-call jpeg_create_decompress().  Error handling is exactly the same.
-
-Typical code:
-
-	struct jpeg_decompress_struct cinfo;
-	struct jpeg_error_mgr jerr;
-	...
-	cinfo.err = jpeg_std_error(&jerr);
-	jpeg_create_decompress(&cinfo);
-
-(Both here and in the IJG code, we usually use variable name "cinfo" for
-both compression and decompression objects.)
-
-
-2. Specify the source of the compressed data (eg, a file).
-
-As previously mentioned, the JPEG library reads compressed data from a "data
-source" module.  The library includes one data source module which knows how
-to read from a stdio stream.  You can use your own source module if you want
-to do something else, as discussed later.
-
-If you use the standard source module, you must open the source stdio stream
-beforehand.  Typical code for this step looks like:
-
-	FILE * infile;
-	...
-	if ((infile = fopen(filename, "rb")) == NULL) {
-	    fprintf(stderr, "can't open %s\n", filename);
-	    exit(1);
-	}
-	jpeg_stdio_src(&cinfo, infile);
-
-where the last line invokes the standard source module.
-
-WARNING: it is critical that the binary compressed data be read unchanged.
-On non-Unix systems the stdio library may perform newline translation or
-otherwise corrupt binary data.  To suppress this behavior, you may need to use
-a "b" option to fopen (as shown above), or use setmode() or another routine to
-put the stdio stream in binary mode.  See cjpeg.c and djpeg.c for code that
-has been found to work on many systems.
-
-You may not change the data source between calling jpeg_read_header() and
-jpeg_finish_decompress().  If you wish to read a series of JPEG images from
-a single source file, you should repeat the jpeg_read_header() to
-jpeg_finish_decompress() sequence without reinitializing either the JPEG
-object or the data source module; this prevents buffered input data from
-being discarded.
-
-
-3. Call jpeg_read_header() to obtain image info.
-
-Typical code for this step is just
-
-	jpeg_read_header(&cinfo, TRUE);
-
-This will read the source datastream header markers, up to the beginning
-of the compressed data proper.  On return, the image dimensions and other
-info have been stored in the JPEG object.  The application may wish to
-consult this information before selecting decompression parameters.
-
-More complex code is necessary if
-  * A suspending data source is used --- in that case jpeg_read_header()
-    may return before it has read all the header data.  See "I/O suspension",
-    below.  The normal stdio source manager will NOT cause this to happen.
-  * Abbreviated JPEG files are to be processed --- see the section on
-    abbreviated datastreams.  Standard applications that deal only in
-    interchange JPEG files need not be concerned with this case either.
-
-It is permissible to stop at this point if you just wanted to find out the
-image dimensions and other header info for a JPEG file.  In that case,
-call jpeg_destroy() when you are done with the JPEG object, or call
-jpeg_abort() to return it to an idle state before selecting a new data
-source and reading another header.
-
-
-4. Set parameters for decompression.
-
-jpeg_read_header() sets appropriate default decompression parameters based on
-the properties of the image (in particular, its colorspace).  However, you
-may well want to alter these defaults before beginning the decompression.
-For example, the default is to produce full color output from a color file.
-If you want colormapped output you must ask for it.  Other options allow the
-returned image to be scaled and allow various speed/quality tradeoffs to be
-selected.  "Decompression parameter selection", below, gives details.
-
-If the defaults are appropriate, nothing need be done at this step.
-
-Note that all default values are set by each call to jpeg_read_header().
-If you reuse a decompression object, you cannot expect your parameter
-settings to be preserved across cycles, as you can for compression.
-You must set desired parameter values each time.
-
-
-5. jpeg_start_decompress(...);
-
-Once the parameter values are satisfactory, call jpeg_start_decompress() to
-begin decompression.  This will initialize internal state, allocate working
-memory, and prepare for returning data.
-
-Typical code is just
-
-	jpeg_start_decompress(&cinfo);
-
-If you have requested a multi-pass operating mode, such as 2-pass color
-quantization, jpeg_start_decompress() will do everything needed before data
-output can begin.  In this case jpeg_start_decompress() may take quite a while
-to complete.  With a single-scan (non progressive) JPEG file and default
-decompression parameters, this will not happen; jpeg_start_decompress() will
-return tquickly.
-
-After this call, the final output image dimensions, including any requested
-scaling, are available in the JPEG object; so is the selected colormap, if
-colormapped output has been requested.  Useful fields include
-
-	output_width		image width and height, as scaled
-	output_height
-	out_color_components	# of color components in out_color_space
-	output_components	# of color components returned per pixel
-	colormap		the selected colormap, if any
-	actual_number_of_colors		number of entries in colormap
-
-output_components is 1 (a colormap index) when quantizing colors; otherwise it
-equals out_color_components.  It is the number of JSAMPLE values that will be
-emitted per pixel in the output arrays.
-
-Typically you will need to allocate data buffers to hold the incoming image.
-You will need output_width * output_components JSAMPLEs per scanline in your
-output buffer, and a total of output_height scanlines will be returned.
-
-Note: if you are using the JPEG library's internal memory manager to allocate
-data buffers (as djpeg does), then the manager's protocol requires that you
-request large buffers *before* calling jpeg_start_decompress().  This is a
-little tricky since the output_XXX fields are not normally valid then.  You
-can make them valid by calling jpeg_calc_output_dimensions() after setting the
-relevant parameters (scaling, output color space, and quantization flag).
-
-
-6. while (scan lines remain to be read)
-	jpeg_read_scanlines(...);
-
-Now you can read the decompressed image data by calling jpeg_read_scanlines()
-one or more times.  At each call, you pass in the maximum number of scanlines
-to be read (ie, the height of your working buffer); jpeg_read_scanlines()
-will return up to that many lines.  The return value is the number of lines
-actually read.  The format of the returned data is discussed under "Data
-formats", above.  Don't forget that grayscale and color JPEGs will return
-different data formats!
-
-Image data is returned in top-to-bottom scanline order.  If you must write
-out the image in bottom-to-top order, you can use the JPEG library's virtual
-array mechanism to invert the data efficiently.  Examples of this can be
-found in the sample application djpeg.
-
-The library maintains a count of the number of scanlines returned so far
-in the output_scanline field of the JPEG object.  Usually you can just use
-this variable as the loop counter, so that the loop test looks like
-"while (cinfo.output_scanline < cinfo.output_height)".  (Note that the test
-should NOT be against image_height, unless you never use scaling.  The
-image_height field is the height of the original unscaled image.)
-The return value always equals the change in the value of output_scanline.
-
-If you don't use a suspending data source, it is safe to assume that
-jpeg_read_scanlines() reads at least one scanline per call, until the
-bottom of the image has been reached.
-
-If you use a buffer larger than one scanline, it is NOT safe to assume that
-jpeg_read_scanlines() fills it.  (The current implementation returns only a
-few scanlines per call, no matter how large a buffer you pass.)  So you must
-always provide a loop that calls jpeg_read_scanlines() repeatedly until the
-whole image has been read.
-
-
-7. jpeg_finish_decompress(...);
-
-After all the image data has been read, call jpeg_finish_decompress() to
-complete the decompression cycle.  This causes working memory associated
-with the JPEG object to be released.
-
-Typical code:
-
-	jpeg_finish_decompress(&cinfo);
-
-If using the stdio source manager, don't forget to close the source stdio
-stream if necessary.
-
-It is an error to call jpeg_finish_decompress() before reading the correct
-total number of scanlines.  If you wish to abort decompression, call
-jpeg_abort() as discussed below.
-
-After completing a decompression cycle, you may dispose of the JPEG object as
-discussed next, or you may use it to decompress another image.  In that case
-return to step 2 or 3 as appropriate.  If you do not change the source
-manager, the next image will be read from the same source.
-
-
-8. Release the JPEG decompression object.
-
-When you are done with a JPEG decompression object, destroy it by calling
-jpeg_destroy_decompress() or jpeg_destroy().  The previous discussion of
-destroying compression objects applies here too.
-
-Typical code:
-
-	jpeg_destroy_decompress(&cinfo);
-
-
-9. Aborting.
-
-You can abort a decompression cycle by calling jpeg_destroy_decompress() or
-jpeg_destroy() if you don't need the JPEG object any more, or
-jpeg_abort_decompress() or jpeg_abort() if you want to reuse the object.
-The previous discussion of aborting compression cycles applies here too.
-
-
-Mechanics of usage: include files, linking, etc
------------------------------------------------
-
-Applications using the JPEG library should include the header file jpeglib.h
-to obtain declarations of data types and routines.  Before including
-jpeglib.h, include system headers that define at least the typedefs FILE and
-size_t.  On ANSI-conforming systems, including <stdio.h> is sufficient; on
-older Unix systems, you may need <sys/types.h> to define size_t.
-
-If the application needs to refer to individual JPEG library error codes, also
-include jerror.h to define those symbols.
-
-jpeglib.h indirectly includes the files jconfig.h and jmorecfg.h.  If you are
-installing the JPEG header files in a system directory, you will want to
-install all four files: jpeglib.h, jerror.h, jconfig.h, jmorecfg.h.
-
-The most convenient way to include the JPEG code into your executable program
-is to prepare a library file ("libjpeg.a", or a corresponding name on non-Unix
-machines) and reference it at your link step.  If you use only half of the
-library (only compression or only decompression), only that much code will be
-included from the library, unless your linker is hopelessly brain-damaged.
-The supplied makefiles build libjpeg.a automatically (see install.doc).
-
-While you can build the JPEG library as a shared library if the whim strikes
-you, we don't really recommend it.  The trouble with shared libraries is that
-at some point you'll probably try to substitute a new version of the library
-without recompiling the calling applications.  That generally doesn't work
-because the parameter struct declarations usually change with each new
-version.  In other words, the library's API is *not* guaranteed binary
-compatible across versions; we only try to ensure source-code compatibility.
-(In hindsight, it might have been smarter to hide the parameter structs from
-applications and introduce a ton of access functions instead.  Too late now,
-however.)
-
-On some systems your application may need to set up a signal handler to ensure
-that temporary files are deleted if the program is interrupted.  This is most
-critical if you are on MS-DOS and use the jmemdos.c memory manager back end;
-it will try to grab extended memory for temp files, and that space will NOT be
-freed automatically.  See cjpeg.c or djpeg.c for an example signal handler.
-
-It may be worth pointing out that the core JPEG library does not actually
-require the stdio library: only the default source/destination managers and
-error handler need it.  You can use the library in a stdio-less environment
-if you replace those modules and use jmemnobs.c (or another memory manager of
-your own devising).  More info about the minimum system library requirements
-may be found in jinclude.h.
-
-
-ADVANCED FEATURES
-=================
-
-Compression parameter selection
--------------------------------
-
-This section describes all the optional parameters you can set for JPEG
-compression, as well as the "helper" routines provided to assist in this
-task.  Proper setting of some parameters requires detailed understanding
-of the JPEG standard; if you don't know what a parameter is for, it's best
-not to mess with it!  See REFERENCES in the README file for pointers to
-more info about JPEG.
-
-It's a good idea to call jpeg_set_defaults() first, even if you plan to set
-all the parameters; that way your code is more likely to work with future JPEG
-libraries that have additional parameters.  For the same reason, we recommend
-you use a helper routine where one is provided, in preference to twiddling
-cinfo fields directly.
-
-The helper routines are:
-
-jpeg_set_defaults (j_compress_ptr cinfo)
-	This routine sets all JPEG parameters to reasonable defaults, using
-	only the input image's color space (field in_color_space, which must
-	already be set in cinfo).  Many applications will only need to use
-	this routine and perhaps jpeg_set_quality().
-
-jpeg_set_colorspace (j_compress_ptr cinfo, J_COLOR_SPACE colorspace)
-	Sets the JPEG file's colorspace (field jpeg_color_space) as specified,
-	and sets other color-space-dependent parameters appropriately.  See
-	"Special color spaces", below, before using this.  A large number of
-	parameters, including all per-component parameters, are set by this
-	routine; if you want to twiddle individual parameters you should call
-	jpeg_set_colorspace() before rather than after.
-
-jpeg_default_colorspace (j_compress_ptr cinfo)
-	Selects an appropriate JPEG colorspace based on cinfo->in_color_space,
-	and calls jpeg_set_colorspace().  This is actually a subroutine of
-	jpeg_set_defaults().  It's broken out in case you want to change
-	just the colorspace-dependent JPEG parameters.
-
-jpeg_set_quality (j_compress_ptr cinfo, int quality, boolean force_baseline)
-	Constructs JPEG quantization tables appropriate for the indicated
-	quality setting.  The quality value is expressed on the 0..100 scale
-	recommended by IJG (cjpeg's "-quality" switch uses this routine).
-	Note that the exact mapping from quality values to tables may change
-	in future IJG releases as more is learned about DCT quantization.
-	If the force_baseline parameter is TRUE, then the quantization table
-	entries are constrained to the range 1..255 for full JPEG baseline
-	compatibility.  In the current implementation, this only makes a
-	difference for quality settings below 25, and it effectively prevents
-	very small/low quality files from being generated.  The IJG decoder
-	is capable of reading the non-baseline files generated at low quality
-	settings when force_baseline is FALSE, but other decoders may not be.
-
-jpeg_set_linear_quality (j_compress_ptr cinfo, int scale_factor,
-			 boolean force_baseline)
-	Same as jpeg_set_quality() except that the generated tables are the
-	sample tables given in the JPEC spec section K.1, multiplied by the
-	specified scale factor (which is expressed as a percentage; thus
-	scale_factor = 100 reproduces the spec's tables).  Note that larger
-	scale factors give lower quality.  This entry point is useful for
-	conforming to the Adobe PostScript DCT conventions, but we do not
-	recommend linear scaling as a user-visible quality scale otherwise.
-	force_baseline again constrains the computed table entries to 1..255.
-
-int jpeg_quality_scaling (int quality)
-	Converts a value on the IJG-recommended quality scale to a linear
-	scaling percentage.  Note that this routine may change or go away
-	in future releases --- IJG may choose to adopt a scaling method that
-	can't be expressed as a simple scalar multiplier, in which case the
-	premise of this routine collapses.  Caveat user.
-
-jpeg_add_quant_table (j_compress_ptr cinfo, int which_tbl,
-		      const unsigned int *basic_table,
-		      int scale_factor, boolean force_baseline)
-	Allows an arbitrary quantization table to be created.  which_tbl
-	indicates which table slot to fill.  basic_table points to an array
-	of 64 unsigned ints given in normal array order.  These values are
-	multiplied by scale_factor/100 and then clamped to the range 1..65535
-	(or to 1..255 if force_baseline is TRUE).
-	CAUTION: prior to library version 6a, jpeg_add_quant_table expected
-	the basic table to be given in JPEG zigzag order.  If you need to
-	write code that works with either older or newer versions of this
-	routine, you must check the library version number.  Something like
-	"#if JPEG_LIB_VERSION >= 61" is the right test.
-
-jpeg_simple_progression (j_compress_ptr cinfo)
-	Generates a default scan script for writing a progressive-JPEG file.
-	This is the recommended method of creating a progressive file,
-	unless you want to make a custom scan sequence.  You must ensure that
-	the JPEG color space is set correctly before calling this routine.
-
-
-Compression parameters (cinfo fields) include:
-
-J_DCT_METHOD dct_method
-	Selects the algorithm used for the DCT step.  Choices are:
-		JDCT_ISLOW: slow but accurate integer algorithm
-		JDCT_IFAST: faster, less accurate integer method
-		JDCT_FLOAT: floating-point method
-		JDCT_DEFAULT: default method (normally JDCT_ISLOW)
-		JDCT_FASTEST: fastest method (normally JDCT_IFAST)
-	The FLOAT method is very slightly more accurate than the ISLOW method,
-	but may give different results on different machines due to varying
-	roundoff behavior.  The integer methods should give the same results
-	on all machines.  On machines with sufficiently fast FP hardware, the
-	floating-point method may also be the fastest.  The IFAST method is
-	considerably less accurate than the other two; its use is not
-	recommended if high quality is a concern.  JDCT_DEFAULT and
-	JDCT_FASTEST are macros configurable by each installation.
-
-J_COLOR_SPACE jpeg_color_space
-int num_components
-	The JPEG color space and corresponding number of components; see
-	"Special color spaces", below, for more info.  We recommend using
-	jpeg_set_color_space() if you want to change these.
-
-boolean optimize_coding
-	TRUE causes the compressor to compute optimal Huffman coding tables
-	for the image.  This requires an extra pass over the data and
-	therefore costs a good deal of space and time.  The default is
-	FALSE, which tells the compressor to use the supplied or default
-	Huffman tables.  In most cases optimal tables save only a few percent
-	of file size compared to the default tables.  Note that when this is
-	TRUE, you need not supply Huffman tables at all, and any you do
-	supply will be overwritten.
-
-unsigned int restart_interval
-int restart_in_rows
-	To emit restart markers in the JPEG file, set one of these nonzero.
-	Set restart_interval to specify the exact interval in MCU blocks.
-	Set restart_in_rows to specify the interval in MCU rows.  (If
-	restart_in_rows is not 0, then restart_interval is set after the
-	image width in MCUs is computed.)  Defaults are zero (no restarts).
-	One restart marker per MCU row is often a good choice.
-	NOTE: the overhead of restart markers is higher in grayscale JPEG
-	files than in color files, and MUCH higher in progressive JPEGs.
-	If you use restarts, you may want to use larger intervals in those
-	cases.
-
-const jpeg_scan_info * scan_info
-int num_scans
-	By default, scan_info is NULL; this causes the compressor to write a
-	single-scan sequential JPEG file.  If not NULL, scan_info points to
-	an array of scan definition records of length num_scans.  The
-	compressor will then write a JPEG file having one scan for each scan
-	definition record.  This is used to generate noninterleaved or
-	progressive JPEG files.  The library checks that the scan array
-	defines a valid JPEG scan sequence.  (jpeg_simple_progression creates
-	a suitable scan definition array for progressive JPEG.)  This is
-	discussed further under "Progressive JPEG support".
-
-int smoothing_factor
-	If non-zero, the input image is smoothed; the value should be 1 for
-	minimal smoothing to 100 for maximum smoothing.  Consult jcsample.c
-	for details of the smoothing algorithm.  The default is zero.
-
-boolean write_JFIF_header
-	If TRUE, a JFIF APP0 marker is emitted.  jpeg_set_defaults() and
-	jpeg_set_colorspace() set this TRUE if a JFIF-legal JPEG color space
-	(ie, YCbCr or grayscale) is selected, otherwise FALSE.
-
-UINT8 JFIF_major_version
-UINT8 JFIF_minor_version
-	The version number to be written into the JFIF marker.
-	jpeg_set_defaults() initializes the version to 1.01 (major=minor=1).
-	You should set it to 1.02 (major=1, minor=2) if you plan to write
-	any JFIF 1.02 extension markers.
-
-UINT8 density_unit
-UINT16 X_density
-UINT16 Y_density
-	The resolution information to be written into the JFIF marker;
-	not used otherwise.  density_unit may be 0 for unknown,
-	1 for dots/inch, or 2 for dots/cm.  The default values are 0,1,1
-	indicating square pixels of unknown size.
-
-boolean write_Adobe_marker
-	If TRUE, an Adobe APP14 marker is emitted.  jpeg_set_defaults() and
-	jpeg_set_colorspace() set this TRUE if JPEG color space RGB, CMYK,
-	or YCCK is selected, otherwise FALSE.  It is generally a bad idea
-	to set both write_JFIF_header and write_Adobe_marker.  In fact,
-	you probably shouldn't change the default settings at all --- the
-	default behavior ensures that the JPEG file's color space can be
-	recognized by the decoder.
-
-JQUANT_TBL * quant_tbl_ptrs[NUM_QUANT_TBLS]
-	Pointers to coefficient quantization tables, one per table slot,
-	or NULL if no table is defined for a slot.  Usually these should
-	be set via one of the above helper routines; jpeg_add_quant_table()
-	is general enough to define any quantization table.  The other
-	routines will set up table slot 0 for luminance quality and table
-	slot 1 for chrominance.
-
-JHUFF_TBL * dc_huff_tbl_ptrs[NUM_HUFF_TBLS]
-JHUFF_TBL * ac_huff_tbl_ptrs[NUM_HUFF_TBLS]
-	Pointers to Huffman coding tables, one per table slot, or NULL if
-	no table is defined for a slot.  Slots 0 and 1 are filled with the
-	JPEG sample tables by jpeg_set_defaults().  If you need to allocate
-	more table structures, jpeg_alloc_huff_table() may be used.
-	Note that optimal Huffman tables can be computed for an image
-	by setting optimize_coding, as discussed above; there's seldom
-	any need to mess with providing your own Huffman tables.
-
-There are some additional cinfo fields which are not documented here
-because you currently can't change them; for example, you can't set
-arith_code TRUE because arithmetic coding is unsupported.
-
-
-Per-component parameters are stored in the struct cinfo.comp_info[i] for
-component number i.  Note that components here refer to components of the
-JPEG color space, *not* the source image color space.  A suitably large
-comp_info[] array is allocated by jpeg_set_defaults(); if you choose not
-to use that routine, it's up to you to allocate the array.
-
-int component_id
-	The one-byte identifier code to be recorded in the JPEG file for
-	this component.  For the standard color spaces, we recommend you
-	leave the default values alone.
-
-int h_samp_factor
-int v_samp_factor
-	Horizontal and vertical sampling factors for the component; must
-	be 1..4 according to the JPEG standard.  Note that larger sampling
-	factors indicate a higher-resolution component; many people find
-	this behavior quite unintuitive.  The default values are 2,2 for
-	luminance components and 1,1 for chrominance components, except
-	for grayscale where 1,1 is used.
-
-int quant_tbl_no
-	Quantization table number for component.  The default value is
-	0 for luminance components and 1 for chrominance components.
-
-int dc_tbl_no
-int ac_tbl_no
-	DC and AC entropy coding table numbers.  The default values are
-	0 for luminance components and 1 for chrominance components.
-
-int component_index
-	Must equal the component's index in comp_info[].  (Beginning in
-	release v6, the compressor library will fill this in automatically;
-	you don't have to.)
-
-
-Decompression parameter selection
----------------------------------
-
-Decompression parameter selection is somewhat simpler than compression
-parameter selection, since all of the JPEG internal parameters are
-recorded in the source file and need not be supplied by the application.
-(Unless you are working with abbreviated files, in which case see
-"Abbreviated datastreams", below.)  Decompression parameters control
-the postprocessing done on the image to deliver it in a format suitable
-for the application's use.  Many of the parameters control speed/quality
-tradeoffs, in which faster decompression may be obtained at the price of
-a poorer-quality image.  The defaults select the highest quality (slowest)
-processing.
-
-The following fields in the JPEG object are set by jpeg_read_header() and
-may be useful to the application in choosing decompression parameters:
-
-JDIMENSION image_width			Width and height of image
-JDIMENSION image_height
-int num_components			Number of color components
-J_COLOR_SPACE jpeg_color_space		Colorspace of image
-boolean saw_JFIF_marker			TRUE if a JFIF APP0 marker was seen
-  UINT8 JFIF_major_version		Version information from JFIF marker
-  UINT8 JFIF_minor_version
-  UINT8 density_unit			Resolution data from JFIF marker
-  UINT16 X_density
-  UINT16 Y_density
-boolean saw_Adobe_marker		TRUE if an Adobe APP14 marker was seen
-  UINT8 Adobe_transform			Color transform code from Adobe marker
-
-The JPEG color space, unfortunately, is something of a guess since the JPEG
-standard proper does not provide a way to record it.  In practice most files
-adhere to the JFIF or Adobe conventions, and the decoder will recognize these
-correctly.  See "Special color spaces", below, for more info.
-
-
-The decompression parameters that determine the basic properties of the
-returned image are:
-
-J_COLOR_SPACE out_color_space
-	Output color space.  jpeg_read_header() sets an appropriate default
-	based on jpeg_color_space; typically it will be RGB or grayscale.
-	The application can change this field to request output in a different
-	colorspace.  For example, set it to JCS_GRAYSCALE to get grayscale
-	output from a color file.  (This is useful for previewing: grayscale
-	output is faster than full color since the color components need not
-	be processed.)  Note that not all possible color space transforms are
-	currently implemented; you may need to extend jdcolor.c if you want an
-	unusual conversion.
-
-unsigned int scale_num, scale_denom
-	Scale the image by the fraction scale_num/scale_denom.  Default is
-	1/1, or no scaling.  Currently, the only supported scaling ratios
-	are 1/1, 1/2, 1/4, and 1/8.  (The library design allows for arbitrary
-	scaling ratios but this is not likely to be implemented any time soon.)
-	Smaller scaling ratios permit significantly faster decoding since
-	fewer pixels need be processed and a simpler IDCT method can be used.
-
-boolean quantize_colors
-	If set TRUE, colormapped output will be delivered.  Default is FALSE,
-	meaning that full-color output will be delivered.
-
-The next three parameters are relevant only if quantize_colors is TRUE.
-
-int desired_number_of_colors
-	Maximum number of colors to use in generating a library-supplied color
-	map (the actual number of colors is returned in a different field).
-	Default 256.  Ignored when the application supplies its own color map.
-
-boolean two_pass_quantize
-	If TRUE, an extra pass over the image is made to select a custom color
-	map for the image.  This usually looks a lot better than the one-size-
-	fits-all colormap that is used otherwise.  Default is TRUE.  Ignored
-	when the application supplies its own color map.
-
-J_DITHER_MODE dither_mode
-	Selects color dithering method.  Supported values are:
-		JDITHER_NONE	no dithering: fast, very low quality
-		JDITHER_ORDERED	ordered dither: moderate speed and quality
-		JDITHER_FS	Floyd-Steinberg dither: slow, high quality
-	Default is JDITHER_FS.  (At present, ordered dither is implemented
-	only in the single-pass, standard-colormap case.  If you ask for
-	ordered dither when two_pass_quantize is TRUE or when you supply
-	an external color map, you'll get F-S dithering.)
-
-When quantize_colors is TRUE, the target color map is described by the next
-two fields.  colormap is set to NULL by jpeg_read_header().  The application
-can supply a color map by setting colormap non-NULL and setting
-actual_number_of_colors to the map size.  Otherwise, jpeg_start_decompress()
-selects a suitable color map and sets these two fields itself.
-[Implementation restriction: at present, an externally supplied colormap is
-only accepted for 3-component output color spaces.]
-
-JSAMPARRAY colormap
-	The color map, represented as a 2-D pixel array of out_color_components
-	rows and actual_number_of_colors columns.  Ignored if not quantizing.
-	CAUTION: if the JPEG library creates its own colormap, the storage
-	pointed to by this field is released by jpeg_finish_decompress().
-	Copy the colormap somewhere else first, if you want to save it.
-
-int actual_number_of_colors
-	The number of colors in the color map.
-
-Additional decompression parameters that the application may set include:
-
-J_DCT_METHOD dct_method
-	Selects the algorithm used for the DCT step.  Choices are the same
-	as described above for compression.
-
-boolean do_fancy_upsampling
-	If TRUE, do careful upsampling of chroma components.  If FALSE,
-	a faster but sloppier method is used.  Default is TRUE.  The visual
-	impact of the sloppier method is often very small.
-
-boolean do_block_smoothing
-	If TRUE, interblock smoothing is applied in early stages of decoding
-	progressive JPEG files; if FALSE, not.  Default is TRUE.  Early
-	progression stages look "fuzzy" with smoothing, "blocky" without.
-	In any case, block smoothing ceases to be applied after the first few
-	AC coefficients are known to full accuracy, so it is relevant only
-	when using buffered-image mode for progressive images.
-
-boolean enable_1pass_quant
-boolean enable_external_quant
-boolean enable_2pass_quant
-	These are significant only in buffered-image mode, which is
-	described in its own section below.
-
-
-The output image dimensions are given by the following fields.  These are
-computed from the source image dimensions and the decompression parameters
-by jpeg_start_decompress().  You can also call jpeg_calc_output_dimensions()
-to obtain the values that will result from the current parameter settings.
-This can be useful if you are trying to pick a scaling ratio that will get
-close to a desired target size.  It's also important if you are using the
-JPEG library's memory manager to allocate output buffer space, because you
-are supposed to request such buffers *before* jpeg_start_decompress().
-
-JDIMENSION output_width		Actual dimensions of output image.
-JDIMENSION output_height
-int out_color_components	Number of color components in out_color_space.
-int output_components		Number of color components returned.
-int rec_outbuf_height		Recommended height of scanline buffer.
-
-When quantizing colors, output_components is 1, indicating a single color map
-index per pixel.  Otherwise it equals out_color_components.  The output arrays
-are required to be output_width * output_components JSAMPLEs wide.
-
-rec_outbuf_height is the recommended minimum height (in scanlines) of the
-buffer passed to jpeg_read_scanlines().  If the buffer is smaller, the
-library will still work, but time will be wasted due to unnecessary data
-copying.  In high-quality modes, rec_outbuf_height is always 1, but some
-faster, lower-quality modes set it to larger values (typically 2 to 4).
-If you are going to ask for a high-speed processing mode, you may as well
-go to the trouble of honoring rec_outbuf_height so as to avoid data copying.
-(An output buffer larger than rec_outbuf_height lines is OK, but won't
-provide any material speed improvement over that height.)
-
-
-Special color spaces
---------------------
-
-The JPEG standard itself is "color blind" and doesn't specify any particular
-color space.  It is customary to convert color data to a luminance/chrominance
-color space before compressing, since this permits greater compression.  The
-existing de-facto JPEG file format standards specify YCbCr or grayscale data
-(JFIF), or grayscale, RGB, YCbCr, CMYK, or YCCK (Adobe).  For special
-applications such as multispectral images, other color spaces can be used,
-but it must be understood that such files will be unportable.
-
-The JPEG library can handle the most common colorspace conversions (namely
-RGB <=> YCbCr and CMYK <=> YCCK).  It can also deal with data of an unknown
-color space, passing it through without conversion.  If you deal extensively
-with an unusual color space, you can easily extend the library to understand
-additional color spaces and perform appropriate conversions.
-
-For compression, the source data's color space is specified by field
-in_color_space.  This is transformed to the JPEG file's color space given
-by jpeg_color_space.  jpeg_set_defaults() chooses a reasonable JPEG color
-space depending on in_color_space, but you can override this by calling
-jpeg_set_colorspace().  Of course you must select a supported transformation.
-jccolor.c currently supports the following transformations:
-	RGB => YCbCr
-	RGB => GRAYSCALE
-	YCbCr => GRAYSCALE
-	CMYK => YCCK
-plus the null transforms: GRAYSCALE => GRAYSCALE, RGB => RGB,
-YCbCr => YCbCr, CMYK => CMYK, YCCK => YCCK, and UNKNOWN => UNKNOWN.
-
-The de-facto file format standards (JFIF and Adobe) specify APPn markers that
-indicate the color space of the JPEG file.  It is important to ensure that
-these are written correctly, or omitted if the JPEG file's color space is not
-one of the ones supported by the de-facto standards.  jpeg_set_colorspace()
-will set the compression parameters to include or omit the APPn markers
-properly, so long as it is told the truth about the JPEG color space.
-For example, if you are writing some random 3-component color space without
-conversion, don't try to fake out the library by setting in_color_space and
-jpeg_color_space to JCS_YCbCr; use JCS_UNKNOWN.  You may want to write an
-APPn marker of your own devising to identify the colorspace --- see "Special
-markers", below.
-
-When told that the color space is UNKNOWN, the library will default to using
-luminance-quality compression parameters for all color components.  You may
-well want to change these parameters.  See the source code for
-jpeg_set_colorspace(), in jcparam.c, for details.
-
-For decompression, the JPEG file's color space is given in jpeg_color_space,
-and this is transformed to the output color space out_color_space.
-jpeg_read_header's setting of jpeg_color_space can be relied on if the file
-conforms to JFIF or Adobe conventions, but otherwise it is no better than a
-guess.  If you know the JPEG file's color space for certain, you can override
-jpeg_read_header's guess by setting jpeg_color_space.  jpeg_read_header also
-selects a default output color space based on (its guess of) jpeg_color_space;
-set out_color_space to override this.  Again, you must select a supported
-transformation.  jdcolor.c currently supports
-	YCbCr => GRAYSCALE
-	YCbCr => RGB
-	GRAYSCALE => RGB
-	YCCK => CMYK
-as well as the null transforms.  (Since GRAYSCALE=>RGB is provided, an
-application can force grayscale JPEGs to look like color JPEGs if it only
-wants to handle one case.)
-
-The two-pass color quantizer, jquant2.c, is specialized to handle RGB data
-(it weights distances appropriately for RGB colors).  You'll need to modify
-the code if you want to use it for non-RGB output color spaces.  Note that
-jquant2.c is used to map to an application-supplied colormap as well as for
-the normal two-pass colormap selection process.
-
-CAUTION: it appears that Adobe Photoshop writes inverted data in CMYK JPEG
-files: 0 represents 100% ink coverage, rather than 0% ink as you'd expect.
-This is arguably a bug in Photoshop, but if you need to work with Photoshop
-CMYK files, you will have to deal with it in your application.  We cannot
-"fix" this in the library by inverting the data during the CMYK<=>YCCK
-transform, because that would break other applications, notably Ghostscript.
-Photoshop versions prior to 3.0 write EPS files containing JPEG-encoded CMYK
-data in the same inverted-YCCK representation used in bare JPEG files, but
-the surrounding PostScript code performs an inversion using the PS image
-operator.  I am told that Photoshop 3.0 will write uninverted YCCK in
-EPS/JPEG files, and will omit the PS-level inversion.  (But the data
-polarity used in bare JPEG files will not change in 3.0.)  In either case,
-the JPEG library must not invert the data itself, or else Ghostscript would
-read these EPS files incorrectly.
-
-
-Error handling
---------------
-
-When the default error handler is used, any error detected inside the JPEG
-routines will cause a message to be printed on stderr, followed by exit().
-You can supply your own error handling routines to override this behavior
-and to control the treatment of nonfatal warnings and trace/debug messages.
-The file example.c illustrates the most common case, which is to have the
-application regain control after an error rather than exiting.
-
-The JPEG library never writes any message directly; it always goes through
-the error handling routines.  Three classes of messages are recognized:
-  * Fatal errors: the library cannot continue.
-  * Warnings: the library can continue, but the data is corrupt, and a
-    damaged output image is likely to result.
-  * Trace/informational messages.  These come with a trace level indicating
-    the importance of the message; you can control the verbosity of the
-    program by adjusting the maximum trace level that will be displayed.
-
-You may, if you wish, simply replace the entire JPEG error handling module
-(jerror.c) with your own code.  However, you can avoid code duplication by
-only replacing some of the routines depending on the behavior you need.
-This is accomplished by calling jpeg_std_error() as usual, but then overriding
-some of the method pointers in the jpeg_error_mgr struct, as illustrated by
-example.c.
-
-All of the error handling routines will receive a pointer to the JPEG object
-(a j_common_ptr which points to either a jpeg_compress_struct or a
-jpeg_decompress_struct; if you need to tell which, test the is_decompressor
-field).  This struct includes a pointer to the error manager struct in its
-"err" field.  Frequently, custom error handler routines will need to access
-additional data which is not known to the JPEG library or the standard error
-handler.  The most convenient way to do this is to embed either the JPEG
-object or the jpeg_error_mgr struct in a larger structure that contains
-additional fields; then casting the passed pointer provides access to the
-additional fields.  Again, see example.c for one way to do it.  (Beginning
-with IJG version 6b, there is also a void pointer "client_data" in each
-JPEG object, which the application can also use to find related data.
-The library does not touch client_data at all.)
-
-The individual methods that you might wish to override are:
-
-error_exit (j_common_ptr cinfo)
-	Receives control for a fatal error.  Information sufficient to
-	generate the error message has been stored in cinfo->err; call
-	output_message to display it.  Control must NOT return to the caller;
-	generally this routine will exit() or longjmp() somewhere.
-	Typically you would override this routine to get rid of the exit()
-	default behavior.  Note that if you continue processing, you should
-	clean up the JPEG object with jpeg_abort() or jpeg_destroy().
-
-output_message (j_common_ptr cinfo)
-	Actual output of any JPEG message.  Override this to send messages
-	somewhere other than stderr.  Note that this method does not know
-	how to generate a message, only where to send it.
-
-format_message (j_common_ptr cinfo, char * buffer)
-	Constructs a readable error message string based on the error info
-	stored in cinfo->err.  This method is called by output_message.  Few
-	applications should need to override this method.  One possible
-	reason for doing so is to implement dynamic switching of error message
-	language.
-
-emit_message (j_common_ptr cinfo, int msg_level)
-	Decide whether or not to emit a warning or trace message; if so,
-	calls output_message.  The main reason for overriding this method
-	would be to abort on warnings.  msg_level is -1 for warnings,
-	0 and up for trace messages.
-
-Only error_exit() and emit_message() are called from the rest of the JPEG
-library; the other two are internal to the error handler.
-
-The actual message texts are stored in an array of strings which is pointed to
-by the field err->jpeg_message_table.  The messages are numbered from 0 to
-err->last_jpeg_message, and it is these code numbers that are used in the
-JPEG library code.  You could replace the message texts (for instance, with
-messages in French or German) by changing the message table pointer.  See
-jerror.h for the default texts.  CAUTION: this table will almost certainly
-change or grow from one library version to the next.
-
-It may be useful for an application to add its own message texts that are
-handled by the same mechanism.  The error handler supports a second "add-on"
-message table for this purpose.  To define an addon table, set the pointer
-err->addon_message_table and the message numbers err->first_addon_message and
-err->last_addon_message.  If you number the addon messages beginning at 1000
-or so, you won't have to worry about conflicts with the library's built-in
-messages.  See the sample applications cjpeg/djpeg for an example of using
-addon messages (the addon messages are defined in cderror.h).
-
-Actual invocation of the error handler is done via macros defined in jerror.h:
-	ERREXITn(...)	for fatal errors
-	WARNMSn(...)	for corrupt-data warnings
-	TRACEMSn(...)	for trace and informational messages.
-These macros store the message code and any additional parameters into the
-error handler struct, then invoke the error_exit() or emit_message() method.
-The variants of each macro are for varying numbers of additional parameters.
-The additional parameters are inserted into the generated message using
-standard printf() format codes.
-
-See jerror.h and jerror.c for further details.
-
-
-Compressed data handling (source and destination managers)
-----------------------------------------------------------
-
-The JPEG compression library sends its compressed data to a "destination
-manager" module.  The default destination manager just writes the data to a
-stdio stream, but you can provide your own manager to do something else.
-Similarly, the decompression library calls a "source manager" to obtain the
-compressed data; you can provide your own source manager if you want the data
-to come from somewhere other than a stdio stream.
-
-In both cases, compressed data is processed a bufferload at a time: the
-destination or source manager provides a work buffer, and the library invokes
-the manager only when the buffer is filled or emptied.  (You could define a
-one-character buffer to force the manager to be invoked for each byte, but
-that would be rather inefficient.)  The buffer's size and location are
-controlled by the manager, not by the library.  For example, if you desired to
-decompress a JPEG datastream that was all in memory, you could just make the
-buffer pointer and length point to the original data in memory.  Then the
-buffer-reload procedure would be invoked only if the decompressor ran off the
-end of the datastream, which would indicate an erroneous datastream.
-
-The work buffer is defined as an array of datatype JOCTET, which is generally
-"char" or "unsigned char".  On a machine where char is not exactly 8 bits
-wide, you must define JOCTET as a wider data type and then modify the data
-source and destination modules to transcribe the work arrays into 8-bit units
-on external storage.
-
-A data destination manager struct contains a pointer and count defining the
-next byte to write in the work buffer and the remaining free space:
-
-	JOCTET * next_output_byte;  /* => next byte to write in buffer */
-	size_t free_in_buffer;      /* # of byte spaces remaining in buffer */
-
-The library increments the pointer and decrements the count until the buffer
-is filled.  The manager's empty_output_buffer method must reset the pointer
-and count.  The manager is expected to remember the buffer's starting address
-and total size in private fields not visible to the library.
-
-A data destination manager provides three methods:
-
-init_destination (j_compress_ptr cinfo)
-	Initialize destination.  This is called by jpeg_start_compress()
-	before any data is actually written.  It must initialize
-	next_output_byte and free_in_buffer.  free_in_buffer must be
-	initialized to a positive value.
-
-empty_output_buffer (j_compress_ptr cinfo)
-	This is called whenever the buffer has filled (free_in_buffer
-	reaches zero).  In typical applications, it should write out the
-	*entire* buffer (use the saved start address and buffer length;
-	ignore the current state of next_output_byte and free_in_buffer).
-	Then reset the pointer & count to the start of the buffer, and
-	return TRUE indicating that the buffer has been dumped.
-	free_in_buffer must be set to a positive value when TRUE is
-	returned.  A FALSE return should only be used when I/O suspension is
-	desired (this operating mode is discussed in the next section).
-
-term_destination (j_compress_ptr cinfo)
-	Terminate destination --- called by jpeg_finish_compress() after all
-	data has been written.  In most applications, this must flush any
-	data remaining in the buffer.  Use either next_output_byte or
-	free_in_buffer to determine how much data is in the buffer.
-
-term_destination() is NOT called by jpeg_abort() or jpeg_destroy().  If you
-want the destination manager to be cleaned up during an abort, you must do it
-yourself.
-
-You will also need code to create a jpeg_destination_mgr struct, fill in its
-method pointers, and insert a pointer to the struct into the "dest" field of
-the JPEG compression object.  This can be done in-line in your setup code if
-you like, but it's probably cleaner to provide a separate routine similar to
-the jpeg_stdio_dest() routine of the supplied destination manager.
-
-Decompression source managers follow a parallel design, but with some
-additional frammishes.  The source manager struct contains a pointer and count
-defining the next byte to read from the work buffer and the number of bytes
-remaining:
-
-	const JOCTET * next_input_byte; /* => next byte to read from buffer */
-	size_t bytes_in_buffer;         /* # of bytes remaining in buffer */
-
-The library increments the pointer and decrements the count until the buffer
-is emptied.  The manager's fill_input_buffer method must reset the pointer and
-count.  In most applications, the manager must remember the buffer's starting
-address and total size in private fields not visible to the library.
-
-A data source manager provides five methods:
-
-init_source (j_decompress_ptr cinfo)
-	Initialize source.  This is called by jpeg_read_header() before any
-	data is actually read.  Unlike init_destination(), it may leave
-	bytes_in_buffer set to 0 (in which case a fill_input_buffer() call
-	will occur immediately).
-
-fill_input_buffer (j_decompress_ptr cinfo)
-	This is called whenever bytes_in_buffer has reached zero and more
-	data is wanted.  In typical applications, it should read fresh data
-	into the buffer (ignoring the current state of next_input_byte and
-	bytes_in_buffer), reset the pointer & count to the start of the
-	buffer, and return TRUE indicating that the buffer has been reloaded.
-	It is not necessary to fill the buffer entirely, only to obtain at
-	least one more byte.  bytes_in_buffer MUST be set to a positive value
-	if TRUE is returned.  A FALSE return should only be used when I/O
-	suspension is desired (this mode is discussed in the next section).
-
-skip_input_data (j_decompress_ptr cinfo, long num_bytes)
-	Skip num_bytes worth of data.  The buffer pointer and count should
-	be advanced over num_bytes input bytes, refilling the buffer as
-	needed.  This is used to skip over a potentially large amount of
-	uninteresting data (such as an APPn marker).  In some applications
-	it may be possible to optimize away the reading of the skipped data,
-	but it's not clear that being smart is worth much trouble; large
-	skips are uncommon.  bytes_in_buffer may be zero on return.
-	A zero or negative skip count should be treated as a no-op.
-
-resync_to_restart (j_decompress_ptr cinfo, int desired)
-	This routine is called only when the decompressor has failed to find
-	a restart (RSTn) marker where one is expected.  Its mission is to
-	find a suitable point for resuming decompression.  For most
-	applications, we recommend that you just use the default resync
-	procedure, jpeg_resync_to_restart().  However, if you are able to back
-	up in the input data stream, or if you have a-priori knowledge about
-	the likely location of restart markers, you may be able to do better.
-	Read the read_restart_marker() and jpeg_resync_to_restart() routines
-	in jdmarker.c if you think you'd like to implement your own resync
-	procedure.
-
-term_source (j_decompress_ptr cinfo)
-	Terminate source --- called by jpeg_finish_decompress() after all
-	data has been read.  Often a no-op.
-
-For both fill_input_buffer() and skip_input_data(), there is no such thing
-as an EOF return.  If the end of the file has been reached, the routine has
-a choice of exiting via ERREXIT() or inserting fake data into the buffer.
-In most cases, generating a warning message and inserting a fake EOI marker
-is the best course of action --- this will allow the decompressor to output
-however much of the image is there.  In pathological cases, the decompressor
-may swallow the EOI and again demand data ... just keep feeding it fake EOIs.
-jdatasrc.c illustrates the recommended error recovery behavior.
-
-term_source() is NOT called by jpeg_abort() or jpeg_destroy().  If you want
-the source manager to be cleaned up during an abort, you must do it yourself.
-
-You will also need code to create a jpeg_source_mgr struct, fill in its method
-pointers, and insert a pointer to the struct into the "src" field of the JPEG
-decompression object.  This can be done in-line in your setup code if you
-like, but it's probably cleaner to provide a separate routine similar to the
-jpeg_stdio_src() routine of the supplied source manager.
-
-For more information, consult the stdio source and destination managers
-in jdatasrc.c and jdatadst.c.
-
-
-I/O suspension
---------------
-
-Some applications need to use the JPEG library as an incremental memory-to-
-memory filter: when the compressed data buffer is filled or emptied, they want
-control to return to the outer loop, rather than expecting that the buffer can
-be emptied or reloaded within the data source/destination manager subroutine.
-The library supports this need by providing an "I/O suspension" mode, which we
-describe in this section.
-
-The I/O suspension mode is not a panacea: nothing is guaranteed about the
-maximum amount of time spent in any one call to the library, so it will not
-eliminate response-time problems in single-threaded applications.  If you
-need guaranteed response time, we suggest you "bite the bullet" and implement
-a real multi-tasking capability.
-
-To use I/O suspension, cooperation is needed between the calling application
-and the data source or destination manager; you will always need a custom
-source/destination manager.  (Please read the previous section if you haven't
-already.)  The basic idea is that the empty_output_buffer() or
-fill_input_buffer() routine is a no-op, merely returning FALSE to indicate
-that it has done nothing.  Upon seeing this, the JPEG library suspends
-operation and returns to its caller.  The surrounding application is
-responsible for emptying or refilling the work buffer before calling the
-JPEG library again.
-
-Compression suspension:
-
-For compression suspension, use an empty_output_buffer() routine that returns
-FALSE; typically it will not do anything else.  This will cause the
-compressor to return to the caller of jpeg_write_scanlines(), with the return
-value indicating that not all the supplied scanlines have been accepted.
-The application must make more room in the output buffer, adjust the output
-buffer pointer/count appropriately, and then call jpeg_write_scanlines()
-again, pointing to the first unconsumed scanline.
-
-When forced to suspend, the compressor will backtrack to a convenient stopping
-point (usually the start of the current MCU); it will regenerate some output
-data when restarted.  Therefore, although empty_output_buffer() is only
-called when the buffer is filled, you should NOT write out the entire buffer
-after a suspension.  Write only the data up to the current position of
-next_output_byte/free_in_buffer.  The data beyond that point will be
-regenerated after resumption.
-
-Because of the backtracking behavior, a good-size output buffer is essential
-for efficiency; you don't want the compressor to suspend often.  (In fact, an
-overly small buffer could lead to infinite looping, if a single MCU required
-more data than would fit in the buffer.)  We recommend a buffer of at least
-several Kbytes.  You may want to insert explicit code to ensure that you don't
-call jpeg_write_scanlines() unless there is a reasonable amount of space in
-the output buffer; in other words, flush the buffer before trying to compress
-more data.
-
-The compressor does not allow suspension while it is trying to write JPEG
-markers at the beginning and end of the file.  This means that:
-  * At the beginning of a compression operation, there must be enough free
-    space in the output buffer to hold the header markers (typically 600 or
-    so bytes).  The recommended buffer size is bigger than this anyway, so
-    this is not a problem as long as you start with an empty buffer.  However,
-    this restriction might catch you if you insert large special markers, such
-    as a JFIF thumbnail image, without flushing the buffer afterwards.
-  * When you call jpeg_finish_compress(), there must be enough space in the
-    output buffer to emit any buffered data and the final EOI marker.  In the
-    current implementation, half a dozen bytes should suffice for this, but
-    for safety's sake we recommend ensuring that at least 100 bytes are free
-    before calling jpeg_finish_compress().
-
-A more significant restriction is that jpeg_finish_compress() cannot suspend.
-This means you cannot use suspension with multi-pass operating modes, namely
-Huffman code optimization and multiple-scan output.  Those modes write the
-whole file during jpeg_finish_compress(), which will certainly result in
-buffer overrun.  (Note that this restriction applies only to compression,
-not decompression.  The decompressor supports input suspension in all of its
-operating modes.)
-
-Decompression suspension:
-
-For decompression suspension, use a fill_input_buffer() routine that simply
-returns FALSE (except perhaps during error recovery, as discussed below).
-This will cause the decompressor to return to its caller with an indication
-that suspension has occurred.  This can happen at four places:
-  * jpeg_read_header(): will return JPEG_SUSPENDED.
-  * jpeg_start_decompress(): will return FALSE, rather than its usual TRUE.
-  * jpeg_read_scanlines(): will return the number of scanlines already
-	completed (possibly 0).
-  * jpeg_finish_decompress(): will return FALSE, rather than its usual TRUE.
-The surrounding application must recognize these cases, load more data into
-the input buffer, and repeat the call.  In the case of jpeg_read_scanlines(),
-increment the passed pointers past any scanlines successfully read.
-
-Just as with compression, the decompressor will typically backtrack to a
-convenient restart point before suspending.  When fill_input_buffer() is
-called, next_input_byte/bytes_in_buffer point to the current restart point,
-which is where the decompressor will backtrack to if FALSE is returned.
-The data beyond that position must NOT be discarded if you suspend; it needs
-to be re-read upon resumption.  In most implementations, you'll need to shift
-this data down to the start of your work buffer and then load more data after
-it.  Again, this behavior means that a several-Kbyte work buffer is essential
-for decent performance; furthermore, you should load a reasonable amount of
-new data before resuming decompression.  (If you loaded, say, only one new
-byte each time around, you could waste a LOT of cycles.)
-
-The skip_input_data() source manager routine requires special care in a
-suspension scenario.  This routine is NOT granted the ability to suspend the
-decompressor; it can decrement bytes_in_buffer to zero, but no more.  If the
-requested skip distance exceeds the amount of data currently in the input
-buffer, then skip_input_data() must set bytes_in_buffer to zero and record the
-additional skip distance somewhere else.  The decompressor will immediately
-call fill_input_buffer(), which should return FALSE, which will cause a
-suspension return.  The surrounding application must then arrange to discard
-the recorded number of bytes before it resumes loading the input buffer.
-(Yes, this design is rather baroque, but it avoids complexity in the far more
-common case where a non-suspending source manager is used.)
-
-If the input data has been exhausted, we recommend that you emit a warning
-and insert dummy EOI markers just as a non-suspending data source manager
-would do.  This can be handled either in the surrounding application logic or
-within fill_input_buffer(); the latter is probably more efficient.  If
-fill_input_buffer() knows that no more data is available, it can set the
-pointer/count to point to a dummy EOI marker and then return TRUE just as
-though it had read more data in a non-suspending situation.
-
-The decompressor does not attempt to suspend within standard JPEG markers;
-instead it will backtrack to the start of the marker and reprocess the whole
-marker next time.  Hence the input buffer must be large enough to hold the
-longest standard marker in the file.  Standard JPEG markers should normally
-not exceed a few hundred bytes each (DHT tables are typically the longest).
-We recommend at least a 2K buffer for performance reasons, which is much
-larger than any correct marker is likely to be.  For robustness against
-damaged marker length counts, you may wish to insert a test in your
-application for the case that the input buffer is completely full and yet
-the decoder has suspended without consuming any data --- otherwise, if this
-situation did occur, it would lead to an endless loop.  (The library can't
-provide this test since it has no idea whether "the buffer is full", or
-even whether there is a fixed-size input buffer.)
-
-The input buffer would need to be 64K to allow for arbitrary COM or APPn
-markers, but these are handled specially: they are either saved into allocated
-memory, or skipped over by calling skip_input_data().  In the former case,
-suspension is handled correctly, and in the latter case, the problem of
-buffer overrun is placed on skip_input_data's shoulders, as explained above.
-Note that if you provide your own marker handling routine for large markers,
-you should consider how to deal with buffer overflow.
-
-Multiple-buffer management:
-
-In some applications it is desirable to store the compressed data in a linked
-list of buffer areas, so as to avoid data copying.  This can be handled by
-having empty_output_buffer() or fill_input_buffer() set the pointer and count
-to reference the next available buffer; FALSE is returned only if no more
-buffers are available.  Although seemingly straightforward, there is a
-pitfall in this approach: the backtrack that occurs when FALSE is returned
-could back up into an earlier buffer.  For example, when fill_input_buffer()
-is called, the current pointer & count indicate the backtrack restart point.
-Since fill_input_buffer() will set the pointer and count to refer to a new
-buffer, the restart position must be saved somewhere else.  Suppose a second
-call to fill_input_buffer() occurs in the same library call, and no
-additional input data is available, so fill_input_buffer must return FALSE.
-If the JPEG library has not moved the pointer/count forward in the current
-buffer, then *the correct restart point is the saved position in the prior
-buffer*.  Prior buffers may be discarded only after the library establishes
-a restart point within a later buffer.  Similar remarks apply for output into
-a chain of buffers.
-
-The library will never attempt to backtrack over a skip_input_data() call,
-so any skipped data can be permanently discarded.  You still have to deal
-with the case of skipping not-yet-received data, however.
-
-It's much simpler to use only a single buffer; when fill_input_buffer() is
-called, move any unconsumed data (beyond the current pointer/count) down to
-the beginning of this buffer and then load new data into the remaining buffer
-space.  This approach requires a little more data copying but is far easier
-to get right.
-
-
-Progressive JPEG support
-------------------------
-
-Progressive JPEG rearranges the stored data into a series of scans of
-increasing quality.  In situations where a JPEG file is transmitted across a
-slow communications link, a decoder can generate a low-quality image very
-tquickly from the first scan, then gradually improve the displayed quality as
-more scans are received.  The final image after all scans are complete is
-identical to that of a regular (sequential) JPEG file of the same quality
-setting.  Progressive JPEG files are often slightly smaller than equivalent
-sequential JPEG files, but the possibility of incremental display is the main
-reason for using progressive JPEG.
-
-The IJG encoder library generates progressive JPEG files when given a
-suitable "scan script" defining how to divide the data into scans.
-Creation of progressive JPEG files is otherwise transparent to the encoder.
-Progressive JPEG files can also be read transparently by the decoder library.
-If the decoding application simply uses the library as defined above, it
-will receive a final decoded image without any indication that the file was
-progressive.  Of course, this approach does not allow incremental display.
-To perform incremental display, an application needs to use the decoder
-library's "buffered-image" mode, in which it receives a decoded image
-multiple times.
-
-Each displayed scan requires about as much work to decode as a full JPEG
-image of the same size, so the decoder must be fairly fast in relation to the
-data transmission rate in order to make incremental display useful.  However,
-it is possible to skip displaying the image and simply add the incoming bits
-to the decoder's coefficient buffer.  This is fast because only Huffman
-decoding need be done, not IDCT, upsampling, colorspace conversion, etc.
-The IJG decoder library allows the application to switch dynamically between
-displaying the image and simply absorbing the incoming bits.  A properly
-coded application can automatically adapt the number of display passes to
-suit the time available as the image is received.  Also, a final
-higher-quality display cycle can be performed from the buffered data after
-the end of the file is reached.
-
-Progressive compression:
-
-To create a progressive JPEG file (or a multiple-scan sequential JPEG file),
-set the scan_info cinfo field to point to an array of scan descriptors, and
-perform compression as usual.  Instead of constructing your own scan list,
-you can call the jpeg_simple_progression() helper routine to create a
-recommended progression sequence; this method should be used by all
-applications that don't want to get involved in the nitty-gritty of
-progressive scan sequence design.  (If you want to provide user control of
-scan sequences, you may wish to borrow the scan script reading code found
-in rdswitch.c, so that you can read scan script files just like cjpeg's.)
-When scan_info is not NULL, the compression library will store DCT'd data
-into a buffer array as jpeg_write_scanlines() is called, and will emit all
-the requested scans during jpeg_finish_compress().  This implies that
-multiple-scan output cannot be created with a suspending data destination
-manager, since jpeg_finish_compress() does not support suspension.  We
-should also note that the compressor currently forces Huffman optimization
-mode when creating a progressive JPEG file, because the default Huffman
-tables are unsuitable for progressive files.
-
-Progressive decompression:
-
-When buffered-image mode is not used, the decoder library will read all of
-a multi-scan file during jpeg_start_decompress(), so that it can provide a
-final decoded image.  (Here "multi-scan" means either progressive or
-multi-scan sequential.)  This makes multi-scan files transparent to the
-decoding application.  However, existing applications that used suspending
-input with version 5 of the IJG library will need to be modified to check
-for a suspension return from jpeg_start_decompress().
-
-To perform incremental display, an application must use the library's
-buffered-image mode.  This is described in the next section.
-
-
-Buffered-image mode
--------------------
-
-In buffered-image mode, the library stores the partially decoded image in a
-coefficient buffer, from which it can be read out as many times as desired.
-This mode is typically used for incremental display of progressive JPEG files,
-but it can be used with any JPEG file.  Each scan of a progressive JPEG file
-adds more data (more detail) to the buffered image.  The application can
-display in lockstep with the source file (one display pass per input scan),
-or it can allow input processing to outrun display processing.  By making
-input and display processing run independently, it is possible for the
-application to adapt progressive display to a wide range of data transmission
-rates.
-
-The basic control flow for buffered-image decoding is
-
-	jpeg_create_decompress()
-	set data source
-	jpeg_read_header()
-	set overall decompression parameters
-	cinfo.buffered_image = TRUE;	/* select buffered-image mode */
-	jpeg_start_decompress()
-	for (each output pass) {
-	    adjust output decompression parameters if required
-	    jpeg_start_output()		/* start a new output pass */
-	    for (all scanlines in image) {
-	        jpeg_read_scanlines()
-	        display scanlines
-	    }
-	    jpeg_finish_output()	/* terminate output pass */
-	}
-	jpeg_finish_decompress()
-	jpeg_destroy_decompress()
-
-This differs from ordinary unbuffered decoding in that there is an additional
-level of looping.  The application can choose how many output passes to make
-and how to display each pass.
-
-The simplest approach to displaying progressive images is to do one display
-pass for each scan appearing in the input file.  In this case the outer loop
-condition is typically
-	while (! jpeg_input_complete(&cinfo))
-and the start-output call should read
-	jpeg_start_output(&cinfo, cinfo.input_scan_number);
-The second parameter to jpeg_start_output() indicates which scan of the input
-file is to be displayed; the scans are numbered starting at 1 for this
-purpose.  (You can use a loop counter starting at 1 if you like, but using
-the library's input scan counter is easier.)  The library automatically reads
-data as necessary to complete each requested scan, and jpeg_finish_output()
-advances to the next scan or end-of-image marker (hence input_scan_number
-will be incremented by the time control arrives back at jpeg_start_output()).
-With this technique, data is read from the input file only as needed, and
-input and output processing run in lockstep.
-
-After reading the final scan and reaching the end of the input file, the
-buffered image remains available; it can be read additional times by
-repeating the jpeg_start_output()/jpeg_read_scanlines()/jpeg_finish_output()
-sequence.  For example, a useful technique is to use fast one-pass color
-quantization for display passes made while the image is arriving, followed by
-a final display pass using two-pass quantization for highest quality.  This
-is done by changing the library parameters before the final output pass.
-Changing parameters between passes is discussed in detail below.
-
-In general the last scan of a progressive file cannot be recognized as such
-until after it is read, so a post-input display pass is the best approach if
-you want special processing in the final pass.
-
-When done with the image, be sure to call jpeg_finish_decompress() to release
-the buffered image (or just use jpeg_destroy_decompress()).
-
-If input data arrives faster than it can be displayed, the application can
-cause the library to decode input data in advance of what's needed to produce
-output.  This is done by calling the routine jpeg_consume_input().
-The return value is one of the following:
-	JPEG_REACHED_SOS:    reached an SOS marker (the start of a new scan)
-	JPEG_REACHED_EOI:    reached the EOI marker (end of image)
-	JPEG_ROW_COMPLETED:  completed reading one MCU row of compressed data
-	JPEG_SCAN_COMPLETED: completed reading last MCU row of current scan
-	JPEG_SUSPENDED:      suspended before completing any of the above
-(JPEG_SUSPENDED can occur only if a suspending data source is used.)  This
-routine can be called at any time after initializing the JPEG object.  It
-reads some additional data and returns when one of the indicated significant
-events occurs.  (If called after the EOI marker is reached, it will
-immediately return JPEG_REACHED_EOI without attempting to read more data.)
-
-The library's output processing will automatically call jpeg_consume_input()
-whenever the output processing overtakes the input; thus, simple lockstep
-display requires no direct calls to jpeg_consume_input().  But by adding
-calls to jpeg_consume_input(), you can absorb data in advance of what is
-being displayed.  This has two benefits:
-  * You can limit buildup of unprocessed data in your input buffer.
-  * You can eliminate extra display passes by paying attention to the
-    state of the library's input processing.
-
-The first of these benefits only requires interspersing calls to
-jpeg_consume_input() with your display operations and any other processing
-you may be doing.  To avoid wasting cycles due to backtracking, it's best to
-call jpeg_consume_input() only after a hundred or so new bytes have arrived.
-This is discussed further under "I/O suspension", above.  (Note: the JPEG
-library currently is not thread-safe.  You must not call jpeg_consume_input()
-from one thread of control if a different library routine is working on the
-same JPEG object in another thread.)
-
-When input arrives fast enough that more than one new scan is available
-before you start a new output pass, you may as well skip the output pass
-corresponding to the completed scan.  This occurs for free if you pass
-cinfo.input_scan_number as the target scan number to jpeg_start_output().
-The input_scan_number field is simply the index of the scan currently being
-consumed by the input processor.  You can ensure that this is up-to-date by
-emptying the input buffer just before calling jpeg_start_output(): call
-jpeg_consume_input() repeatedly until it returns JPEG_SUSPENDED or
-JPEG_REACHED_EOI.
-
-The target scan number passed to jpeg_start_output() is saved in the
-cinfo.output_scan_number field.  The library's output processing calls
-jpeg_consume_input() whenever the current input scan number and row within
-that scan is less than or equal to the current output scan number and row.
-Thus, input processing can "get ahead" of the output processing but is not
-allowed to "fall behind".  You can achieve several different effects by
-manipulating this interlock rule.  For example, if you pass a target scan
-number greater than the current input scan number, the output processor will
-wait until that scan starts to arrive before producing any output.  (To avoid
-an infinite loop, the target scan number is automatically reset to the last
-scan number when the end of image is reached.  Thus, if you specify a large
-target scan number, the library will just absorb the entire input file and
-then perform an output pass.  This is effectively the same as what
-jpeg_start_decompress() does when you don't select buffered-image mode.)
-When you pass a target scan number equal to the current input scan number,
-the image is displayed no faster than the current input scan arrives.  The
-final possibility is to pass a target scan number less than the current input
-scan number; this disables the input/output interlock and causes the output
-processor to simply display whatever it finds in the image buffer, without
-waiting for input.  (However, the library will not accept a target scan
-number less than one, so you can't avoid waiting for the first scan.)
-
-When data is arriving faster than the output display processing can advance
-through the image, jpeg_consume_input() will store data into the buffered
-image beyond the point at which the output processing is reading data out
-again.  If the input arrives fast enough, it may "wrap around" the buffer to
-the point where the input is more than one whole scan ahead of the output.
-If the output processing simply proceeds through its display pass without
-paying attention to the input, the effect seen on-screen is that the lower
-part of the image is one or more scans better in quality than the upper part.
-Then, when the next output scan is started, you have a choice of what target
-scan number to use.  The recommended choice is to use the current input scan
-number at that time, which implies that you've skipped the output scans
-corresponding to the input scans that were completed while you processed the
-previous output scan.  In this way, the decoder automatically adapts its
-speed to the arriving data, by skipping output scans as necessary to keep up
-with the arriving data.
-
-When using this strategy, you'll want to be sure that you perform a final
-output pass after receiving all the data; otherwise your last display may not
-be full quality across the whole screen.  So the right outer loop logic is
-something like this:
-	do {
-	    absorb any waiting input by calling jpeg_consume_input()
-	    final_pass = jpeg_input_complete(&cinfo);
-	    adjust output decompression parameters if required
-	    jpeg_start_output(&cinfo, cinfo.input_scan_number);
-	    ...
-	    jpeg_finish_output()
-	} while (! final_pass);
-rather than quitting as soon as jpeg_input_complete() returns TRUE.  This
-arrangement makes it simple to use higher-quality decoding parameters
-for the final pass.  But if you don't want to use special parameters for
-the final pass, the right loop logic is like this:
-	for (;;) {
-	    absorb any waiting input by calling jpeg_consume_input()
-	    jpeg_start_output(&cinfo, cinfo.input_scan_number);
-	    ...
-	    jpeg_finish_output()
-	    if (jpeg_input_complete(&cinfo) &&
-	        cinfo.input_scan_number == cinfo.output_scan_number)
-	      break;
-	}
-In this case you don't need to know in advance whether an output pass is to
-be the last one, so it's not necessary to have reached EOF before starting
-the final output pass; rather, what you want to test is whether the output
-pass was performed in sync with the final input scan.  This form of the loop
-will avoid an extra output pass whenever the decoder is able (or nearly able)
-to keep up with the incoming data.
-
-When the data transmission speed is high, you might begin a display pass,
-then find that much or all of the file has arrived before you can complete
-the pass.  (You can detect this by noting the JPEG_REACHED_EOI return code
-from jpeg_consume_input(), or equivalently by testing jpeg_input_complete().)
-In this situation you may wish to abort the current display pass and start a
-new one using the newly arrived information.  To do so, just call
-jpeg_finish_output() and then start a new pass with jpeg_start_output().
-
-A variant strategy is to abort and restart display if more than one complete
-scan arrives during an output pass; this can be detected by noting
-JPEG_REACHED_SOS returns and/or examining cinfo.input_scan_number.  This
-idea should be employed with caution, however, since the display process
-might never get to the bottom of the image before being aborted, resulting
-in the lower part of the screen being several passes worse than the upper.
-In most cases it's probably best to abort an output pass only if the whole
-file has arrived and you want to begin the final output pass immediately.
-
-When receiving data across a communication link, we recommend always using
-the current input scan number for the output target scan number; if a
-higher-quality final pass is to be done, it should be started (aborting any
-incomplete output pass) as soon as the end of file is received.  However,
-many other strategies are possible.  For example, the application can examine
-the parameters of the current input scan and decide whether to display it or
-not.  If the scan contains only chroma data, one might choose not to use it
-as the target scan, expecting that the scan will be small and will arrive
-tquickly.  To skip to the next scan, call jpeg_consume_input() until it
-returns JPEG_REACHED_SOS or JPEG_REACHED_EOI.  Or just use the next higher
-number as the target scan for jpeg_start_output(); but that method doesn't
-let you inspect the next scan's parameters before deciding to display it.
-
-
-In buffered-image mode, jpeg_start_decompress() never performs input and
-thus never suspends.  An application that uses input suspension with
-buffered-image mode must be prepared for suspension returns from these
-routines:
-* jpeg_start_output() performs input only if you request 2-pass quantization
-  and the target scan isn't fully read yet.  (This is discussed below.)
-* jpeg_read_scanlines(), as always, returns the number of scanlines that it
-  was able to produce before suspending.
-* jpeg_finish_output() will read any markers following the target scan,
-  up to the end of the file or the SOS marker that begins another scan.
-  (But it reads no input if jpeg_consume_input() has already reached the
-  end of the file or a SOS marker beyond the target output scan.)
-* jpeg_finish_decompress() will read until the end of file, and thus can
-  suspend if the end hasn't already been reached (as can be tested by
-  calling jpeg_input_complete()).
-jpeg_start_output(), jpeg_finish_output(), and jpeg_finish_decompress()
-all return TRUE if they completed their tasks, FALSE if they had to suspend.
-In the event of a FALSE return, the application must load more input data
-and repeat the call.  Applications that use non-suspending data sources need
-not check the return values of these three routines.
-
-
-It is possible to change decoding parameters between output passes in the
-buffered-image mode.  The decoder library currently supports only very
-limited changes of parameters.  ONLY THE FOLLOWING parameter changes are
-allowed after jpeg_start_decompress() is called:
-* dct_method can be changed before each call to jpeg_start_output().
-  For example, one could use a fast DCT method for early scans, changing
-  to a higher quality method for the final scan.
-* dither_mode can be changed before each call to jpeg_start_output();
-  of course this has no impact if not using color quantization.  Typically
-  one would use ordered dither for initial passes, then switch to
-  Floyd-Steinberg dither for the final pass.  Caution: changing dither mode
-  can cause more memory to be allocated by the library.  Although the amount
-  of memory involved is not large (a scanline or so), it may cause the
-  initial max_memory_to_use specification to be exceeded, which in the worst
-  case would result in an out-of-memory failure.
-* do_block_smoothing can be changed before each call to jpeg_start_output().
-  This setting is relevant only when decoding a progressive JPEG image.
-  During the first DC-only scan, block smoothing provides a very "fuzzy" look
-  instead of the very "blocky" look seen without it; which is better seems a
-  matter of personal taste.  But block smoothing is nearly always a win
-  during later stages, especially when decoding a successive-approximation
-  image: smoothing helps to hide the slight blockiness that otherwise shows
-  up on smooth gradients until the lowest coefficient bits are sent.
-* Color quantization mode can be changed under the rules described below.
-  You *cannot* change between full-color and quantized output (because that
-  would alter the required I/O buffer sizes), but you can change which
-  quantization method is used.
-
-When generating color-quantized output, changing quantization method is a
-very useful way of switching between high-speed and high-quality display.
-The library allows you to change among its three quantization methods:
-1. Single-pass quantization to a fixed color cube.
-   Selected by cinfo.two_pass_quantize = FALSE and cinfo.colormap = NULL.
-2. Single-pass quantization to an application-supplied colormap.
-   Selected by setting cinfo.colormap to point to the colormap (the value of
-   two_pass_quantize is ignored); also set cinfo.actual_number_of_colors.
-3. Two-pass quantization to a colormap chosen specifically for the image.
-   Selected by cinfo.two_pass_quantize = TRUE and cinfo.colormap = NULL.
-   (This is the default setting selected by jpeg_read_header, but it is
-   probably NOT what you want for the first pass of progressive display!)
-These methods offer successively better quality and lesser speed.  However,
-only the first method is available for quantizing in non-RGB color spaces.
-
-IMPORTANT: because the different quantizer methods have very different
-working-storage requirements, the library requires you to indicate which
-one(s) you intend to use before you call jpeg_start_decompress().  (If we did
-not require this, the max_memory_to_use setting would be a complete fiction.)
-You do this by setting one or more of these three cinfo fields to TRUE:
-	enable_1pass_quant		Fixed color cube colormap
-	enable_external_quant		Externally-supplied colormap
-	enable_2pass_quant		Two-pass custom colormap
-All three are initialized FALSE by jpeg_read_header().  But
-jpeg_start_decompress() automatically sets TRUE the one selected by the
-current two_pass_quantize and colormap settings, so you only need to set the
-enable flags for any other quantization methods you plan to change to later.
-
-After setting the enable flags correctly at jpeg_start_decompress() time, you
-can change to any enabled quantization method by setting two_pass_quantize
-and colormap properly just before calling jpeg_start_output().  The following
-special rules apply:
-1. You must explicitly set cinfo.colormap to NULL when switching to 1-pass
-   or 2-pass mode from a different mode, or when you want the 2-pass
-   quantizer to be re-run to generate a new colormap.
-2. To switch to an external colormap, or to change to a different external
-   colormap than was used on the prior pass, you must call
-   jpeg_new_colormap() after setting cinfo.colormap.
-NOTE: if you want to use the same colormap as was used in the prior pass,
-you should not do either of these things.  This will save some nontrivial
-switchover costs.
-(These requirements exist because cinfo.colormap will always be non-NULL
-after completing a prior output pass, since both the 1-pass and 2-pass
-quantizers set it to point to their output colormaps.  Thus you have to
-do one of these two things to notify the library that something has changed.
-Yup, it's a bit klugy, but it's necessary to do it this way for backwards
-compatibility.)
-
-Note that in buffered-image mode, the library generates any requested colormap
-during jpeg_start_output(), not during jpeg_start_decompress().
-
-When using two-pass quantization, jpeg_start_output() makes a pass over the
-buffered image to determine the optimum color map; it therefore may take a
-significant amount of time, whereas ordinarily it does little work.  The
-progress monitor hook is called during this pass, if defined.  It is also
-important to realize that if the specified target scan number is greater than
-or equal to the current input scan number, jpeg_start_output() will attempt
-to consume input as it makes this pass.  If you use a suspending data source,
-you need to check for a FALSE return from jpeg_start_output() under these
-conditions.  The combination of 2-pass quantization and a not-yet-fully-read
-target scan is the only case in which jpeg_start_output() will consume input.
-
-
-Application authors who support buffered-image mode may be tempted to use it
-for all JPEG images, even single-scan ones.  This will work, but it is
-inefficient: there is no need to create an image-sized coefficient buffer for
-single-scan images.  Requesting buffered-image mode for such an image wastes
-memory.  Worse, it can cost time on large images, since the buffered data has
-to be swapped out or written to a temporary file.  If you are concerned about
-maximum performance on baseline JPEG files, you should use buffered-image
-mode only when the incoming file actually has multiple scans.  This can be
-tested by calling jpeg_has_multiple_scans(), which will return a correct
-result at any time after jpeg_read_header() completes.
-
-It is also worth noting that when you use jpeg_consume_input() to let input
-processing get ahead of output processing, the resulting pattern of access to
-the coefficient buffer is quite nonsequential.  It's best to use the memory
-manager jmemnobs.c if you can (ie, if you have enough real or virtual main
-memory).  If not, at least make sure that max_memory_to_use is set as high as
-possible.  If the JPEG memory manager has to use a temporary file, you will
-probably see a lot of disk traffic and poor performance.  (This could be
-improved with additional work on the memory manager, but we haven't gotten
-around to it yet.)
-
-In some applications it may be convenient to use jpeg_consume_input() for all
-input processing, including reading the initial markers; that is, you may
-wish to call jpeg_consume_input() instead of jpeg_read_header() during
-startup.  This works, but note that you must check for JPEG_REACHED_SOS and
-JPEG_REACHED_EOI return codes as the equivalent of jpeg_read_header's codes.
-Once the first SOS marker has been reached, you must call
-jpeg_start_decompress() before jpeg_consume_input() will consume more input;
-it'll just keep returning JPEG_REACHED_SOS until you do.  If you read a
-tables-only file this way, jpeg_consume_input() will return JPEG_REACHED_EOI
-without ever returning JPEG_REACHED_SOS; be sure to check for this case.
-If this happens, the decompressor will not read any more input until you call
-jpeg_abort() to reset it.  It is OK to call jpeg_consume_input() even when not
-using buffered-image mode, but in that case it's basically a no-op after the
-initial markers have been read: it will just return JPEG_SUSPENDED.
-
-
-Abbreviated datastreams and multiple images
--------------------------------------------
-
-A JPEG compression or decompression object can be reused to process multiple
-images.  This saves a small amount of time per image by eliminating the
-"create" and "destroy" operations, but that isn't the real purpose of the
-feature.  Rather, reuse of an object provides support for abbreviated JPEG
-datastreams.  Object reuse can also simplify processing a series of images in
-a single input or output file.  This section explains these features.
-
-A JPEG file normally contains several hundred bytes worth of quantization
-and Huffman tables.  In a situation where many images will be stored or
-transmitted with identical tables, this may represent an annoying overhead.
-The JPEG standard therefore permits tables to be omitted.  The standard
-defines three classes of JPEG datastreams:
-  * "Interchange" datastreams contain an image and all tables needed to decode
-     the image.  These are the usual kind of JPEG file.
-  * "Abbreviated image" datastreams contain an image, but are missing some or
-    all of the tables needed to decode that image.
-  * "Abbreviated table specification" (henceforth "tables-only") datastreams
-    contain only table specifications.
-To decode an abbreviated image, it is necessary to load the missing table(s)
-into the decoder beforehand.  This can be accomplished by reading a separate
-tables-only file.  A variant scheme uses a series of images in which the first
-image is an interchange (complete) datastream, while subsequent ones are
-abbreviated and rely on the tables loaded by the first image.  It is assumed
-that once the decoder has read a table, it will remember that table until a
-new definition for the same table number is encountered.
-
-It is the application designer's responsibility to figure out how to associate
-the correct tables with an abbreviated image.  While abbreviated datastreams
-can be useful in a closed environment, their use is strongly discouraged in
-any situation where data exchange with other applications might be needed.
-Caveat designer.
-
-The JPEG library provides support for reading and writing any combination of
-tables-only datastreams and abbreviated images.  In both compression and
-decompression objects, a quantization or Huffman table will be retained for
-the lifetime of the object, unless it is overwritten by a new table definition.
-
-
-To create abbreviated image datastreams, it is only necessary to tell the
-compressor not to emit some or all of the tables it is using.  Each
-quantization and Huffman table struct contains a boolean field "sent_table",
-which normally is initialized to FALSE.  For each table used by the image, the
-header-writing process emits the table and sets sent_table = TRUE unless it is
-already TRUE.  (In normal usage, this prevents outputting the same table
-definition multiple times, as would otherwise occur because the chroma
-components typically share tables.)  Thus, setting this field to TRUE before
-calling jpeg_start_compress() will prevent the table from being written at
-all.
-
-If you want to create a "pure" abbreviated image file containing no tables,
-just call "jpeg_suppress_tables(&cinfo, TRUE)" after constructing all the
-tables.  If you want to emit some but not all tables, you'll need to set the
-individual sent_table fields directly.
-
-To create an abbreviated image, you must also call jpeg_start_compress()
-with a second parameter of FALSE, not TRUE.  Otherwise jpeg_start_compress()
-will force all the sent_table fields to FALSE.  (This is a safety feature to
-prevent abbreviated images from being created accidentally.)
-
-To create a tables-only file, perform the same parameter setup that you
-normally would, but instead of calling jpeg_start_compress() and so on, call
-jpeg_write_tables(&cinfo).  This will write an abbreviated datastream
-containing only SOI, DQT and/or DHT markers, and EOI.  All the quantization
-and Huffman tables that are currently defined in the compression object will
-be emitted unless their sent_tables flag is already TRUE, and then all the
-sent_tables flags will be set TRUE.
-
-A sure-fire way to create matching tables-only and abbreviated image files
-is to proceed as follows:
-
-	create JPEG compression object
-	set JPEG parameters
-	set destination to tables-only file
-	jpeg_write_tables(&cinfo);
-	set destination to image file
-	jpeg_start_compress(&cinfo, FALSE);
-	write data...
-	jpeg_finish_compress(&cinfo);
-
-Since the JPEG parameters are not altered between writing the table file and
-the abbreviated image file, the same tables are sure to be used.  Of course,
-you can repeat the jpeg_start_compress() ... jpeg_finish_compress() sequence
-many times to produce many abbreviated image files matching the table file.
-
-You cannot suppress output of the computed Huffman tables when Huffman
-optimization is selected.  (If you could, there'd be no way to decode the
-image...)  Generally, you don't want to set optimize_coding = TRUE when
-you are trying to produce abbreviated files.
-
-In some cases you might want to compress an image using tables which are
-not stored in the application, but are defined in an interchange or
-tables-only file readable by the application.  This can be done by setting up
-a JPEG decompression object to read the specification file, then copying the
-tables into your compression object.  See jpeg_copy_critical_parameters()
-for an example of copying quantization tables.
-
-
-To read abbreviated image files, you simply need to load the proper tables
-into the decompression object before trying to read the abbreviated image.
-If the proper tables are stored in the application program, you can just
-allocate the table structs and fill in their contents directly.  For example,
-to load a fixed quantization table into table slot "n":
-
-    if (cinfo.quant_tbl_ptrs[n] == NULL)
-      cinfo.quant_tbl_ptrs[n] = jpeg_alloc_quant_table((j_common_ptr) &cinfo);
-    quant_ptr = cinfo.quant_tbl_ptrs[n];	/* quant_ptr is JQUANT_TBL* */
-    for (i = 0; i < 64; i++) {
-      /* Qtable[] is desired quantization table, in natural array order */
-      quant_ptr->quantval[i] = Qtable[i];
-    }
-
-Code to load a fixed Huffman table is typically (for AC table "n"):
-
-    if (cinfo.ac_huff_tbl_ptrs[n] == NULL)
-      cinfo.ac_huff_tbl_ptrs[n] = jpeg_alloc_huff_table((j_common_ptr) &cinfo);
-    huff_ptr = cinfo.ac_huff_tbl_ptrs[n];	/* huff_ptr is JHUFF_TBL* */
-    for (i = 1; i <= 16; i++) {
-      /* counts[i] is number of Huffman codes of length i bits, i=1..16 */
-      huff_ptr->bits[i] = counts[i];
-    }
-    for (i = 0; i < 256; i++) {
-      /* symbols[] is the list of Huffman symbols, in code-length order */
-      huff_ptr->huffval[i] = symbols[i];
-    }
-
-(Note that trying to set cinfo.quant_tbl_ptrs[n] to point directly at a
-constant JQUANT_TBL object is not safe.  If the incoming file happened to
-contain a quantization table definition, your master table would get
-overwritten!  Instead allocate a working table copy and copy the master table
-into it, as illustrated above.  Ditto for Huffman tables, of course.)
-
-You might want to read the tables from a tables-only file, rather than
-hard-wiring them into your application.  The jpeg_read_header() call is
-sufficient to read a tables-only file.  You must pass a second parameter of
-FALSE to indicate that you do not require an image to be present.  Thus, the
-typical scenario is
-
-	create JPEG decompression object
-	set source to tables-only file
-	jpeg_read_header(&cinfo, FALSE);
-	set source to abbreviated image file
-	jpeg_read_header(&cinfo, TRUE);
-	set decompression parameters
-	jpeg_start_decompress(&cinfo);
-	read data...
-	jpeg_finish_decompress(&cinfo);
-
-In some cases, you may want to read a file without knowing whether it contains
-an image or just tables.  In that case, pass FALSE and check the return value
-from jpeg_read_header(): it will be JPEG_HEADER_OK if an image was found,
-JPEG_HEADER_TABLES_ONLY if only tables were found.  (A third return value,
-JPEG_SUSPENDED, is possible when using a suspending data source manager.)
-Note that jpeg_read_header() will not complain if you read an abbreviated
-image for which you haven't loaded the missing tables; the missing-table check
-occurs later, in jpeg_start_decompress().
-
-
-It is possible to read a series of images from a single source file by
-repeating the jpeg_read_header() ... jpeg_finish_decompress() sequence,
-without releasing/recreating the JPEG object or the data source module.
-(If you did reinitialize, any partial bufferload left in the data source
-buffer at the end of one image would be discarded, causing you to lose the
-start of the next image.)  When you use this method, stored tables are
-automatically carried forward, so some of the images can be abbreviated images
-that depend on tables from earlier images.
-
-If you intend to write a series of images into a single destination file,
-you might want to make a specialized data destination module that doesn't
-flush the output buffer at term_destination() time.  This would speed things
-up by some trifling amount.  Of course, you'd need to remember to flush the
-buffer after the last image.  You can make the later images be abbreviated
-ones by passing FALSE to jpeg_start_compress().
-
-
-Special markers
----------------
-
-Some applications may need to insert or extract special data in the JPEG
-datastream.  The JPEG standard provides marker types "COM" (comment) and
-"APP0" through "APP15" (application) to hold application-specific data.
-Unfortunately, the use of these markers is not specified by the standard.
-COM markers are fairly widely used to hold user-supplied text.  The JFIF file
-format spec uses APP0 markers with specified initial strings to hold certain
-data.  Adobe applications use APP14 markers beginning with the string "Adobe"
-for miscellaneous data.  Other APPn markers are rarely seen, but might
-contain almost anything.
-
-If you wish to store user-supplied text, we recommend you use COM markers
-and place readable 7-bit ASCII text in them.  Newline conventions are not
-standardized --- expect to find LF (Unix style), CR/LF (DOS style), or CR
-(Mac style).  A robust COM reader should be able to cope with random binary
-garbage, including nulls, since some applications generate COM markers
-containing non-ASCII junk.  (But yours should not be one of them.)
-
-For program-supplied data, use an APPn marker, and be sure to begin it with an
-identifying string so that you can tell whether the marker is actually yours.
-It's probably best to avoid using APP0 or APP14 for any private markers.
-(NOTE: the upcoming SPIFF standard will use APP8 markers; we recommend you
-not use APP8 markers for any private purposes, either.)
-
-Keep in mind that at most 65533 bytes can be put into one marker, but you
-can have as many markers as you like.
-
-By default, the IJG compression library will write a JFIF APP0 marker if the
-selected JPEG colorspace is grayscale or YCbCr, or an Adobe APP14 marker if
-the selected colorspace is RGB, CMYK, or YCCK.  You can disable this, but
-we don't recommend it.  The decompression library will recognize JFIF and
-Adobe markers and will set the JPEG colorspace properly when one is found.
-
-
-You can write special markers immediately following the datastream header by
-calling jpeg_write_marker() after jpeg_start_compress() and before the first
-call to jpeg_write_scanlines().  When you do this, the markers appear after
-the SOI and the JFIF APP0 and Adobe APP14 markers (if written), but before
-all else.  Specify the marker type parameter as "JPEG_COM" for COM or
-"JPEG_APP0 + n" for APPn.  (Actually, jpeg_write_marker will let you write
-any marker type, but we don't recommend writing any other kinds of marker.)
-For example, to write a user comment string pointed to by comment_text:
-	jpeg_write_marker(cinfo, JPEG_COM, comment_text, strlen(comment_text));
-
-If it's not convenient to store all the marker data in memory at once,
-you can instead call jpeg_write_m_header() followed by multiple calls to
-jpeg_write_m_byte().  If you do it this way, it's your responsibility to
-call jpeg_write_m_byte() exactly the number of times given in the length
-parameter to jpeg_write_m_header().  (This method lets you empty the
-output buffer partway through a marker, which might be important when
-using a suspending data destination module.  In any case, if you are using
-a suspending destination, you should flush its buffer after inserting
-any special markers.  See "I/O suspension".)
-
-Or, if you prefer to synthesize the marker byte sequence yourself,
-you can just cram it straight into the data destination module.
-
-If you are writing JFIF 1.02 extension markers (thumbnail images), don't
-forget to set cinfo.JFIF_minor_version = 2 so that the encoder will write the
-correct JFIF version number in the JFIF header marker.  The library's default
-is to write version 1.01, but that's wrong if you insert any 1.02 extension
-markers.  (We could probably get away with just defaulting to 1.02, but there
-used to be broken decoders that would complain about unknown minor version
-numbers.  To reduce compatibility risks it's safest not to write 1.02 unless
-you are actually using 1.02 extensions.)
-
-
-When reading, two methods of handling special markers are available:
-1. You can ask the library to save the contents of COM and/or APPn markers
-into memory, and then examine them at your leisure afterwards.
-2. You can supply your own routine to process COM and/or APPn markers
-on-the-fly as they are read.
-The first method is simpler to use, especially if you are using a suspending
-data source; writing a marker processor that copes with input suspension is
-not easy (consider what happens if the marker is longer than your available
-input buffer).  However, the second method conserves memory since the marker
-data need not be kept around after it's been processed.
-
-For either method, you'd normally set up marker handling after creating a
-decompression object and before calling jpeg_read_header(), because the
-markers of interest will typically be near the head of the file and so will
-be scanned by jpeg_read_header.  Once you've established a marker handling
-method, it will be used for the life of that decompression object
-(potentially many datastreams), unless you change it.  Marker handling is
-determined separately for COM markers and for each APPn marker code.
-
-
-To save the contents of special markers in memory, call
-	jpeg_save_markers(cinfo, marker_code, length_limit)
-where marker_code is the marker type to save, JPEG_COM or JPEG_APP0+n.
-(To arrange to save all the special marker types, you need to call this
-routine 17 times, for COM and APP0-APP15.)  If the incoming marker is longer
-than length_limit data bytes, only length_limit bytes will be saved; this
-parameter allows you to avoid chewing up memory when you only need to see the
-first few bytes of a potentially large marker.  If you want to save all the
-data, set length_limit to 0xFFFF; that is enough since marker lengths are only
-16 bits.  As a special case, setting length_limit to 0 prevents that marker
-type from being saved at all.  (That is the default behavior, in fact.)
-
-After jpeg_read_header() completes, you can examine the special markers by
-following the cinfo->marker_list pointer chain.  All the special markers in
-the file appear in this list, in order of their occurrence in the file (but
-omitting any markers of types you didn't ask for).  Both the original data
-length and the saved data length are recorded for each list entry; the latter
-will not exceed length_limit for the particular marker type.  Note that these
-lengths exclude the marker length word, whereas the stored representation
-within the JPEG file includes it.  (Hence the maximum data length is really
-only 65533.)
-
-It is possible that additional special markers appear in the file beyond the
-SOS marker at which jpeg_read_header stops; if so, the marker list will be
-extended during reading of the rest of the file.  This is not expected to be
-common, however.  If you are short on memory you may want to reset the length
-limit to zero for all marker types after finishing jpeg_read_header, to
-ensure that the max_memory_to_use setting cannot be exceeded due to addition
-of later markers.
-
-The marker list remains stored until you call jpeg_finish_decompress or
-jpeg_abort, at which point the memory is freed and the list is set to empty.
-(jpeg_destroy also releases the storage, of course.)
-
-Note that the library is internally interested in APP0 and APP14 markers;
-if you try to set a small nonzero length limit on these types, the library
-will silently force the length up to the minimum it wants.  (But you can set
-a zero length limit to prevent them from being saved at all.)  Also, in a
-16-bit environment, the maximum length limit may be constrained to less than
-65533 by malloc() limitations.  It is therefore best not to assume that the
-effective length limit is exactly what you set it to be.
-
-
-If you want to supply your own marker-reading routine, you do it by calling
-jpeg_set_marker_processor().  A marker processor routine must have the
-signature
-	boolean jpeg_marker_parser_method (j_decompress_ptr cinfo)
-Although the marker code is not explicitly passed, the routine can find it
-in cinfo->unread_marker.  At the time of call, the marker proper has been
-read from the data source module.  The processor routine is responsible for
-reading the marker length word and the remaining parameter bytes, if any.
-Return TRUE to indicate success.  (FALSE should be returned only if you are
-using a suspending data source and it tells you to suspend.  See the standard
-marker processors in jdmarker.c for appropriate coding methods if you need to
-use a suspending data source.)
-
-If you override the default APP0 or APP14 processors, it is up to you to
-recognize JFIF and Adobe markers if you want colorspace recognition to occur
-properly.  We recommend copying and extending the default processors if you
-want to do that.  (A better idea is to save these marker types for later
-examination by calling jpeg_save_markers(); that method doesn't interfere
-with the library's own processing of these markers.)
-
-jpeg_set_marker_processor() and jpeg_save_markers() are mutually exclusive
---- if you call one it overrides any previous call to the other, for the
-particular marker type specified.
-
-A simple example of an external COM processor can be found in djpeg.c.
-Also, see jpegtran.c for an example of using jpeg_save_markers.
-
-
-Raw (downsampled) image data
-----------------------------
-
-Some applications need to supply already-downsampled image data to the JPEG
-compressor, or to receive raw downsampled data from the decompressor.  The
-library supports this requirement by allowing the application to write or
-read raw data, bypassing the normal preprocessing or postprocessing steps.
-The interface is different from the standard one and is somewhat harder to
-use.  If your interest is merely in bypassing color conversion, we recommend
-that you use the standard interface and simply set jpeg_color_space =
-in_color_space (or jpeg_color_space = out_color_space for decompression).
-The mechanism described in this section is necessary only to supply or
-receive downsampled image data, in which not all components have the same
-dimensions.
-
-
-To compress raw data, you must supply the data in the colorspace to be used
-in the JPEG file (please read the earlier section on Special color spaces)
-and downsampled to the sampling factors specified in the JPEG parameters.
-You must supply the data in the format used internally by the JPEG library,
-namely a JSAMPIMAGE array.  This is an array of pointers to two-dimensional
-arrays, each of type JSAMPARRAY.  Each 2-D array holds the values for one
-color component.  This structure is necessary since the components are of
-different sizes.  If the image dimensions are not a multiple of the MCU size,
-you must also pad the data correctly (usually, this is done by replicating
-the last column and/or row).  The data must be padded to a multiple of a DCT
-block in each component: that is, each downsampled row must contain a
-multiple of 8 valid samples, and there must be a multiple of 8 sample rows
-for each component.  (For applications such as conversion of digital TV
-images, the standard image size is usually a multiple of the DCT block size,
-so that no padding need actually be done.)
-
-The procedure for compression of raw data is basically the same as normal
-compression, except that you call jpeg_write_raw_data() in place of
-jpeg_write_scanlines().  Before calling jpeg_start_compress(), you must do
-the following:
-  * Set cinfo->raw_data_in to TRUE.  (It is set FALSE by jpeg_set_defaults().)
-    This notifies the library that you will be supplying raw data.
-  * Ensure jpeg_color_space is correct --- an explicit jpeg_set_colorspace()
-    call is a good idea.  Note that since color conversion is bypassed,
-    in_color_space is ignored, except that jpeg_set_defaults() uses it to
-    choose the default jpeg_color_space setting.
-  * Ensure the sampling factors, cinfo->comp_info[i].h_samp_factor and
-    cinfo->comp_info[i].v_samp_factor, are correct.  Since these indicate the
-    dimensions of the data you are supplying, it's wise to set them
-    explicitly, rather than assuming the library's defaults are what you want.
-
-To pass raw data to the library, call jpeg_write_raw_data() in place of
-jpeg_write_scanlines().  The two routines work similarly except that
-jpeg_write_raw_data takes a JSAMPIMAGE data array rather than JSAMPARRAY.
-The scanlines count passed to and returned from jpeg_write_raw_data is
-measured in terms of the component with the largest v_samp_factor.
-
-jpeg_write_raw_data() processes one MCU row per call, which is to say
-v_samp_factor*DCTSIZE sample rows of each component.  The passed num_lines
-value must be at least max_v_samp_factor*DCTSIZE, and the return value will
-be exactly that amount (or possibly some multiple of that amount, in future
-library versions).  This is true even on the last call at the bottom of the
-image; don't forget to pad your data as necessary.
-
-The required dimensions of the supplied data can be computed for each
-component as
-	cinfo->comp_info[i].width_in_blocks*DCTSIZE  samples per row
-	cinfo->comp_info[i].height_in_blocks*DCTSIZE rows in image
-after jpeg_start_compress() has initialized those fields.  If the valid data
-is smaller than this, it must be padded appropriately.  For some sampling
-factors and image sizes, additional dummy DCT blocks are inserted to make
-the image a multiple of the MCU dimensions.  The library creates such dummy
-blocks itself; it does not read them from your supplied data.  Therefore you
-need never pad by more than DCTSIZE samples.  An example may help here.
-Assume 2h2v downsampling of YCbCr data, that is
-	cinfo->comp_info[0].h_samp_factor = 2		for Y
-	cinfo->comp_info[0].v_samp_factor = 2
-	cinfo->comp_info[1].h_samp_factor = 1		for Cb
-	cinfo->comp_info[1].v_samp_factor = 1
-	cinfo->comp_info[2].h_samp_factor = 1		for Cr
-	cinfo->comp_info[2].v_samp_factor = 1
-and suppose that the nominal image dimensions (cinfo->image_width and
-cinfo->image_height) are 101x101 pixels.  Then jpeg_start_compress() will
-compute downsampled_width = 101 and width_in_blocks = 13 for Y,
-downsampled_width = 51 and width_in_blocks = 7 for Cb and Cr (and the same
-for the height fields).  You must pad the Y data to at least 13*8 = 104
-columns and rows, the Cb/Cr data to at least 7*8 = 56 columns and rows.  The
-MCU height is max_v_samp_factor = 2 DCT rows so you must pass at least 16
-scanlines on each call to jpeg_write_raw_data(), which is to say 16 actual
-sample rows of Y and 8 each of Cb and Cr.  A total of 7 MCU rows are needed,
-so you must pass a total of 7*16 = 112 "scanlines".  The last DCT block row
-of Y data is dummy, so it doesn't matter what you pass for it in the data
-arrays, but the scanlines count must total up to 112 so that all of the Cb
-and Cr data gets passed.
-
-Output suspension is supported with raw-data compression: if the data
-destination module suspends, jpeg_write_raw_data() will return 0.
-In this case the same data rows must be passed again on the next call.
-
-
-Decompression with raw data output implies bypassing all postprocessing:
-you cannot ask for rescaling or color quantization, for instance.  More
-seriously, you must deal with the color space and sampling factors present in
-the incoming file.  If your application only handles, say, 2h1v YCbCr data,
-you must check for and fail on other color spaces or other sampling factors.
-The library will not convert to a different color space for you.
-
-To obtain raw data output, set cinfo->raw_data_out = TRUE before
-jpeg_start_decompress() (it is set FALSE by jpeg_read_header()).  Be sure to
-verify that the color space and sampling factors are ones you can handle.
-Then call jpeg_read_raw_data() in place of jpeg_read_scanlines().  The
-decompression process is otherwise the same as usual.
-
-jpeg_read_raw_data() returns one MCU row per call, and thus you must pass a
-buffer of at least max_v_samp_factor*DCTSIZE scanlines (scanline counting is
-the same as for raw-data compression).  The buffer you pass must be large
-enough to hold the actual data plus padding to DCT-block boundaries.  As with
-compression, any entirely dummy DCT blocks are not processed so you need not
-allocate space for them, but the total scanline count includes them.  The
-above example of computing buffer dimensions for raw-data compression is
-equally valid for decompression.
-
-Input suspension is supported with raw-data decompression: if the data source
-module suspends, jpeg_read_raw_data() will return 0.  You can also use
-buffered-image mode to read raw data in multiple passes.
-
-
-Really raw data: DCT coefficients
----------------------------------
-
-It is possible to read or write the contents of a JPEG file as raw DCT
-coefficients.  This facility is mainly intended for use in lossless
-transcoding between different JPEG file formats.  Other possible applications
-include lossless cropping of a JPEG image, lossless reassembly of a
-multi-strip or multi-tile TIFF/JPEG file into a single JPEG datastream, etc.
-
-To read the contents of a JPEG file as DCT coefficients, open the file and do
-jpeg_read_header() as usual.  But instead of calling jpeg_start_decompress()
-and jpeg_read_scanlines(), call jpeg_read_coefficients().  This will read the
-entire image into a set of virtual coefficient-block arrays, one array per
-component.  The return value is a pointer to an array of virtual-array
-descriptors.  Each virtual array can be accessed directly using the JPEG
-memory manager's access_virt_barray method (see Memory management, below,
-and also read structure.doc's discussion of virtual array handling).  Or,
-for simple transcoding to a different JPEG file format, the array list can
-just be handed directly to jpeg_write_coefficients().
-
-Each block in the block arrays contains quantized coefficient values in
-normal array order (not JPEG zigzag order).  The block arrays contain only
-DCT blocks containing real data; any entirely-dummy blocks added to fill out
-interleaved MCUs at the right or bottom edges of the image are discarded
-during reading and are not stored in the block arrays.  (The size of each
-block array can be determined from the width_in_blocks and height_in_blocks
-fields of the component's comp_info entry.)  This is also the data format
-expected by jpeg_write_coefficients().
-
-When you are done using the virtual arrays, call jpeg_finish_decompress()
-to release the array storage and return the decompression object to an idle
-state; or just call jpeg_destroy() if you don't need to reuse the object.
-
-If you use a suspending data source, jpeg_read_coefficients() will return
-NULL if it is forced to suspend; a non-NULL return value indicates successful
-completion.  You need not test for a NULL return value when using a
-non-suspending data source.
-
-It is also possible to call jpeg_read_coefficients() to obtain access to the
-decoder's coefficient arrays during a normal decode cycle in buffered-image
-mode.  This frammish might be useful for progressively displaying an incoming
-image and then re-encoding it without loss.  To do this, decode in buffered-
-image mode as discussed previously, then call jpeg_read_coefficients() after
-the last jpeg_finish_output() call.  The arrays will be available for your use
-until you call jpeg_finish_decompress().
-
-
-To write the contents of a JPEG file as DCT coefficients, you must provide
-the DCT coefficients stored in virtual block arrays.  You can either pass
-block arrays read from an input JPEG file by jpeg_read_coefficients(), or
-allocate virtual arrays from the JPEG compression object and fill them
-yourself.  In either case, jpeg_write_coefficients() is substituted for
-jpeg_start_compress() and jpeg_write_scanlines().  Thus the sequence is
-  * Create compression object
-  * Set all compression parameters as necessary
-  * Request virtual arrays if needed
-  * jpeg_write_coefficients()
-  * jpeg_finish_compress()
-  * Destroy or re-use compression object
-jpeg_write_coefficients() is passed a pointer to an array of virtual block
-array descriptors; the number of arrays is equal to cinfo.num_components.
-
-The virtual arrays need only have been requested, not realized, before
-jpeg_write_coefficients() is called.  A side-effect of
-jpeg_write_coefficients() is to realize any virtual arrays that have been
-requested from the compression object's memory manager.  Thus, when obtaining
-the virtual arrays from the compression object, you should fill the arrays
-after calling jpeg_write_coefficients().  The data is actually written out
-when you call jpeg_finish_compress(); jpeg_write_coefficients() only writes
-the file header.
-
-When writing raw DCT coefficients, it is crucial that the JPEG quantization
-tables and sampling factors match the way the data was encoded, or the
-resulting file will be invalid.  For transcoding from an existing JPEG file,
-we recommend using jpeg_copy_critical_parameters().  This routine initializes
-all the compression parameters to default values (like jpeg_set_defaults()),
-then copies the critical information from a source decompression object.
-The decompression object should have just been used to read the entire
-JPEG input file --- that is, it should be awaiting jpeg_finish_decompress().
-
-jpeg_write_coefficients() marks all tables stored in the compression object
-as needing to be written to the output file (thus, it acts like
-jpeg_start_compress(cinfo, TRUE)).  This is for safety's sake, to avoid
-emitting abbreviated JPEG files by accident.  If you really want to emit an
-abbreviated JPEG file, call jpeg_suppress_tables(), or set the tables'
-individual sent_table flags, between calling jpeg_write_coefficients() and
-jpeg_finish_compress().
-
-
-Progress monitoring
--------------------
-
-Some applications may need to regain control from the JPEG library every so
-often.  The typical use of this feature is to produce a percent-done bar or
-other progress display.  (For a simple example, see cjpeg.c or djpeg.c.)
-Although you do get control back frequently during the data-transferring pass
-(the jpeg_read_scanlines or jpeg_write_scanlines loop), any additional passes
-will occur inside jpeg_finish_compress or jpeg_start_decompress; those
-routines may take a long time to execute, and you don't get control back
-until they are done.
-
-You can define a progress-monitor routine which will be called periodically
-by the library.  No guarantees are made about how often this call will occur,
-so we don't recommend you use it for mouse tracking or anything like that.
-At present, a call will occur once per MCU row, scanline, or sample row
-group, whichever unit is convenient for the current processing mode; so the
-wider the image, the longer the time between calls.  During the data
-transferring pass, only one call occurs per call of jpeg_read_scanlines or
-jpeg_write_scanlines, so don't pass a large number of scanlines at once if
-you want fine resolution in the progress count.  (If you really need to use
-the callback mechanism for time-critical tasks like mouse tracking, you could
-insert additional calls inside some of the library's inner loops.)
-
-To establish a progress-monitor callback, create a struct jpeg_progress_mgr,
-fill in its progress_monitor field with a pointer to your callback routine,
-and set cinfo->progress to point to the struct.  The callback will be called
-whenever cinfo->progress is non-NULL.  (This pointer is set to NULL by
-jpeg_create_compress or jpeg_create_decompress; the library will not change
-it thereafter.  So if you allocate dynamic storage for the progress struct,
-make sure it will live as long as the JPEG object does.  Allocating from the
-JPEG memory manager with lifetime JPOOL_PERMANENT will work nicely.)  You
-can use the same callback routine for both compression and decompression.
-
-The jpeg_progress_mgr struct contains four fields which are set by the library:
-	long pass_counter;	/* work units completed in this pass */
-	long pass_limit;	/* total number of work units in this pass */
-	int completed_passes;	/* passes completed so far */
-	int total_passes;	/* total number of passes expected */
-During any one pass, pass_counter increases from 0 up to (not including)
-pass_limit; the step size is usually but not necessarily 1.  The pass_limit
-value may change from one pass to another.  The expected total number of
-passes is in total_passes, and the number of passes already completed is in
-completed_passes.  Thus the fraction of work completed may be estimated as
-		completed_passes + (pass_counter/pass_limit)
-		--------------------------------------------
-				total_passes
-ignoring the fact that the passes may not be equal amounts of work.
-
-When decompressing, pass_limit can even change within a pass, because it
-depends on the number of scans in the JPEG file, which isn't always known in
-advance.  The computed fraction-of-work-done may jump suddenly (if the library
-discovers it has overestimated the number of scans) or even decrease (in the
-opposite case).  It is not wise to put great faith in the work estimate.
-
-When using the decompressor's buffered-image mode, the progress monitor work
-estimate is likely to be completely unhelpful, because the library has no way
-to know how many output passes will be demanded of it.  Currently, the library
-sets total_passes based on the assumption that there will be one more output
-pass if the input file end hasn't yet been read (jpeg_input_complete() isn't
-TRUE), but no more output passes if the file end has been reached when the
-output pass is started.  This means that total_passes will rise as additional
-output passes are requested.  If you have a way of determining the input file
-size, estimating progress based on the fraction of the file that's been read
-will probably be more useful than using the library's value.
-
-
-Memory management
------------------
-
-This section covers some key facts about the JPEG library's built-in memory
-manager.  For more info, please read structure.doc's section about the memory
-manager, and consult the source code if necessary.
-
-All memory and temporary file allocation within the library is done via the
-memory manager.  If necessary, you can replace the "back end" of the memory
-manager to control allocation yourself (for example, if you don't want the
-library to use malloc() and free() for some reason).
-
-Some data is allocated "permanently" and will not be freed until the JPEG
-object is destroyed.  Most data is allocated "per image" and is freed by
-jpeg_finish_compress, jpeg_finish_decompress, or jpeg_abort.  You can call the
-memory manager yourself to allocate structures that will automatically be
-freed at these times.  Typical code for this is
-  ptr = (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, size);
-Use JPOOL_PERMANENT to get storage that lasts as long as the JPEG object.
-Use alloc_large instead of alloc_small for anything bigger than a few Kbytes.
-There are also alloc_sarray and alloc_barray routines that automatically
-build 2-D sample or block arrays.
-
-The library's minimum space requirements to process an image depend on the
-image's width, but not on its height, because the library ordinarily works
-with "strip" buffers that are as wide as the image but just a few rows high.
-Some operating modes (eg, two-pass color quantization) require full-image
-buffers.  Such buffers are treated as "virtual arrays": only the current strip
-need be in memory, and the rest can be swapped out to a temporary file.
-
-If you use the simplest memory manager back end (jmemnobs.c), then no
-temporary files are used; virtual arrays are simply malloc()'d.  Images bigger
-than memory can be processed only if your system supports virtual memory.
-The other memory manager back ends support temporary files of various flavors
-and thus work in machines without virtual memory.  They may also be useful on
-Unix machines if you need to process images that exceed available swap space.
-
-When using temporary files, the library will make the in-memory buffers for
-its virtual arrays just big enough to stay within a "maximum memory" setting.
-Your application can set this limit by setting cinfo->mem->max_memory_to_use
-after creating the JPEG object.  (Of course, there is still a minimum size for
-the buffers, so the max-memory setting is effective only if it is bigger than
-the minimum space needed.)  If you allocate any large structures yourself, you
-must allocate them before jpeg_start_compress() or jpeg_start_decompress() in
-order to have them counted against the max memory limit.  Also keep in mind
-that space allocated with alloc_small() is ignored, on the assumption that
-it's too small to be worth worrying about; so a reasonable safety margin
-should be left when setting max_memory_to_use.
-
-If you use the jmemname.c or jmemdos.c memory manager back end, it is
-important to clean up the JPEG object properly to ensure that the temporary
-files get deleted.  (This is especially crucial with jmemdos.c, where the
-"temporary files" may be extended-memory segments; if they are not freed,
-DOS will require a reboot to recover the memory.)  Thus, with these memory
-managers, it's a good idea to provide a signal handler that will trap any
-early exit from your program.  The handler should call either jpeg_abort()
-or jpeg_destroy() for any active JPEG objects.  A handler is not needed with
-jmemnobs.c, and shouldn't be necessary with jmemansi.c or jmemmac.c either,
-since the C library is supposed to take care of deleting files made with
-tmpfile().
-
-
-Memory usage
-------------
-
-Working memory requirements while performing compression or decompression
-depend on image dimensions, image characteristics (such as colorspace and
-JPEG process), and operating mode (application-selected options).
-
-As of v6b, the decompressor requires:
- 1. About 24K in more-or-less-fixed-size data.  This varies a bit depending
-    on operating mode and image characteristics (particularly color vs.
-    grayscale), but it doesn't depend on image dimensions.
- 2. Strip buffers (of size proportional to the image width) for IDCT and
-    upsampling results.  The worst case for commonly used sampling factors
-    is about 34 bytes * width in pixels for a color image.  A grayscale image
-    only needs about 8 bytes per pixel column.
- 3. A full-image DCT coefficient buffer is needed to decode a multi-scan JPEG
-    file (including progressive JPEGs), or whenever you select buffered-image
-    mode.  This takes 2 bytes/coefficient.  At typical 2x2 sampling, that's
-    3 bytes per pixel for a color image.  Worst case (1x1 sampling) requires
-    6 bytes/pixel.  For grayscale, figure 2 bytes/pixel.
- 4. To perform 2-pass color quantization, the decompressor also needs a
-    128K color lookup table and a full-image pixel buffer (3 bytes/pixel).
-This does not count any memory allocated by the application, such as a
-buffer to hold the final output image.
-
-The above figures are valid for 8-bit JPEG data precision and a machine with
-32-bit ints.  For 12-bit JPEG data, double the size of the strip buffers and
-quantization pixel buffer.  The "fixed-size" data will be somewhat smaller
-with 16-bit ints, larger with 64-bit ints.  Also, CMYK or other unusual
-color spaces will require different amounts of space.
-
-The full-image coefficient and pixel buffers, if needed at all, do not
-have to be fully RAM resident; you can have the library use temporary
-files instead when the total memory usage would exceed a limit you set.
-(But if your OS supports virtual memory, it's probably better to just use
-jmemnobs and let the OS do the swapping.)
-
-The compressor's memory requirements are similar, except that it has no need
-for color quantization.  Also, it needs a full-image DCT coefficient buffer
-if Huffman-table optimization is asked for, even if progressive mode is not
-requested.
-
-If you need more detailed information about memory usage in a particular
-situation, you can enable the MEM_STATS code in jmemmgr.c.
-
-
-Library compile-time options
-----------------------------
-
-A number of compile-time options are available by modifying jmorecfg.h.
-
-The JPEG standard provides for both the baseline 8-bit DCT process and
-a 12-bit DCT process.  The IJG code supports 12-bit lossy JPEG if you define
-BITS_IN_JSAMPLE as 12 rather than 8.  Note that this causes JSAMPLE to be
-larger than a char, so it affects the surrounding application's image data.
-The sample applications cjpeg and djpeg can support 12-bit mode only for PPM
-and GIF file formats; you must disable the other file formats to compile a
-12-bit cjpeg or djpeg.  (install.doc has more information about that.)
-At present, a 12-bit library can handle *only* 12-bit images, not both
-precisions.  (If you need to include both 8- and 12-bit libraries in a single
-application, you could probably do it by defining NEED_SHORT_EXTERNAL_NAMES
-for just one of the copies.  You'd have to access the 8-bit and 12-bit copies
-from separate application source files.  This is untested ... if you try it,
-we'd like to hear whether it works!)
-
-Note that a 12-bit library always compresses in Huffman optimization mode,
-in order to generate valid Huffman tables.  This is necessary because our
-default Huffman tables only cover 8-bit data.  If you need to output 12-bit
-files in one pass, you'll have to supply suitable default Huffman tables.
-You may also want to supply your own DCT quantization tables; the existing
-quality-scaling code has been developed for 8-bit use, and probably doesn't
-generate especially good tables for 12-bit.
-
-The maximum number of components (color channels) in the image is determined
-by MAX_COMPONENTS.  The JPEG standard allows up to 255 components, but we
-expect that few applications will need more than four or so.
-
-On machines with unusual data type sizes, you may be able to improve
-performance or reduce memory space by tweaking the various typedefs in
-jmorecfg.h.  In particular, on some RISC CPUs, access to arrays of "short"s
-is quite slow; consider trading memory for speed by making JCOEF, INT16, and
-UINT16 be "int" or "unsigned int".  UINT8 is also a candidate to become int.
-You probably don't want to make JSAMPLE be int unless you have lots of memory
-to burn.
-
-You can reduce the size of the library by compiling out various optional
-functions.  To do this, undefine xxx_SUPPORTED symbols as necessary.
-
-You can also save a few K by not having text error messages in the library;
-the standard error message table occupies about 5Kb.  This is particularly
-reasonable for embedded applications where there's no good way to display 
-a message anyway.  To do this, remove the creation of the message table
-(jpeg_std_message_table[]) from jerror.c, and alter format_message to do
-something reasonable without it.  You could output the numeric value of the
-message code number, for example.  If you do this, you can also save a couple
-more K by modifying the TRACEMSn() macros in jerror.h to expand to nothing;
-you don't need trace capability anyway, right?
-
-
-Portability considerations
---------------------------
-
-The JPEG library has been written to be extremely portable; the sample
-applications cjpeg and djpeg are slightly less so.  This section summarizes
-the design goals in this area.  (If you encounter any bugs that cause the
-library to be less portable than is claimed here, we'd appreciate hearing
-about them.)
-
-The code works fine on ANSI C, C++, and pre-ANSI C compilers, using any of
-the popular system include file setups, and some not-so-popular ones too.
-See install.doc for configuration procedures.
-
-The code is not dependent on the exact sizes of the C data types.  As
-distributed, we make the assumptions that
-	char	is at least 8 bits wide
-	short	is at least 16 bits wide
-	int	is at least 16 bits wide
-	long	is at least 32 bits wide
-(These are the minimum requirements of the ANSI C standard.)  Wider types will
-work fine, although memory may be used inefficiently if char is much larger
-than 8 bits or short is much bigger than 16 bits.  The code should work
-equally well with 16- or 32-bit ints.
-
-In a system where these assumptions are not met, you may be able to make the
-code work by modifying the typedefs in jmorecfg.h.  However, you will probably
-have difficulty if int is less than 16 bits wide, since references to plain
-int abound in the code.
-
-char can be either signed or unsigned, although the code runs faster if an
-unsigned char type is available.  If char is wider than 8 bits, you will need
-to redefine JOCTET and/or provide custom data source/destination managers so
-that JOCTET represents exactly 8 bits of data on external storage.
-
-The JPEG library proper does not assume ASCII representation of characters.
-But some of the image file I/O modules in cjpeg/djpeg do have ASCII
-dependencies in file-header manipulation; so does cjpeg's select_file_type()
-routine.
-
-The JPEG library does not rely heavily on the C library.  In particular, C
-stdio is used only by the data source/destination modules and the error
-handler, all of which are application-replaceable.  (cjpeg/djpeg are more
-heavily dependent on stdio.)  malloc and free are called only from the memory
-manager "back end" module, so you can use a different memory allocator by
-replacing that one file.
-
-The code generally assumes that C names must be unique in the first 15
-characters.  However, global function names can be made unique in the
-first 6 characters by defining NEED_SHORT_EXTERNAL_NAMES.
-
-More info about porting the code may be gleaned by reading jconfig.doc,
-jmorecfg.h, and jinclude.h.
-
-
-Notes for MS-DOS implementors
------------------------------
-
-The IJG code is designed to work efficiently in 80x86 "small" or "medium"
-memory models (i.e., data pointers are 16 bits unless explicitly declared
-"far"; code pointers can be either size).  You may be able to use small
-model to compile cjpeg or djpeg by itself, but you will probably have to use
-medium model for any larger application.  This won't make much difference in
-performance.  You *will* take a noticeable performance hit if you use a
-large-data memory model (perhaps 10%-25%), and you should avoid "huge" model
-if at all possible.
-
-The JPEG library typically needs 2Kb-3Kb of stack space.  It will also
-malloc about 20K-30K of near heap space while executing (and lots of far
-heap, but that doesn't count in this calculation).  This figure will vary
-depending on selected operating mode, and to a lesser extent on image size.
-There is also about 5Kb-6Kb of constant data which will be allocated in the
-near data segment (about 4Kb of this is the error message table).
-Thus you have perhaps 20K available for other modules' static data and near
-heap space before you need to go to a larger memory model.  The C library's
-static data will account for several K of this, but that still leaves a good
-deal for your needs.  (If you are tight on space, you could reduce the sizes
-of the I/O buffers allocated by jdatasrc.c and jdatadst.c, say from 4K to
-1K.  Another possibility is to move the error message table to far memory;
-this should be doable with only localized hacking on jerror.c.)
-
-About 2K of the near heap space is "permanent" memory that will not be
-released until you destroy the JPEG object.  This is only an issue if you
-save a JPEG object between compression or decompression operations.
-
-Far data space may also be a tight resource when you are dealing with large
-images.  The most memory-intensive case is decompression with two-pass color
-quantization, or single-pass quantization to an externally supplied color
-map.  This requires a 128Kb color lookup table plus strip buffers amounting
-to about 40 bytes per column for typical sampling ratios (eg, about 25600
-bytes for a 640-pixel-wide image).  You may not be able to process wide
-images if you have large data structures of your own.
-
-Of course, all of these concerns vanish if you use a 32-bit flat-memory-model
-compiler, such as DJGPP or Watcom C.  We highly recommend flat model if you
-can use it; the JPEG library is significantly faster in flat model.
diff --git a/src/3rdparty/libjpeg/makefile.ansi b/src/3rdparty/libjpeg/makefile.ansi
deleted file mode 100644
index 829191359..000000000
--- a/src/3rdparty/libjpeg/makefile.ansi
+++ /dev/null
@@ -1,214 +0,0 @@
-# Makefile for Independent JPEG Group's software
-
-# This makefile is suitable for Unix-like systems with ANSI-capable compilers.
-# If you have a non-ANSI compiler, makefile.unix is a better starting point.
-
-# Read installation instructions before saying "make" !!
-
-# The name of your C compiler:
-CC= cc
-
-# You may need to adjust these cc options:
-CFLAGS= -O
-# Generally, we recommend defining any configuration symbols in jconfig.h,
-# NOT via -D switches here.
-
-# Link-time cc options:
-LDFLAGS= 
-
-# To link any special libraries, add the necessary -l commands here.
-LDLIBS= 
-
-# Put here the object file name for the correct system-dependent memory
-# manager file.  For Unix this is usually jmemnobs.o, but you may want
-# to use jmemansi.o or jmemname.o if you have limited swap space.
-SYSDEPMEM= jmemnobs.o
-
-# miscellaneous OS-dependent stuff
-# linker
-LN= $(CC)
-# file deletion command
-RM= rm -f
-# library (.a) file creation command
-AR= ar rc
-# second step in .a creation (use "touch" if not needed)
-AR2= ranlib
-
-# End of configurable options.
-
-
-# source files: JPEG library proper
-LIBSOURCES= jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c \
-        jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c \
-        jcphuff.c jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c \
-        jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c \
-        jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c \
-        jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c \
-        jfdctint.c jidctflt.c jidctfst.c jidctint.c jidctred.c jquant1.c \
-        jquant2.c jutils.c jmemmgr.c
-# memmgr back ends: compile only one of these into a working library
-SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c
-# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom
-APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \
-        rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \
-        rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c
-SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES)
-# files included by source files
-INCLUDES= jchuff.h jdhuff.h jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h \
-        jpegint.h jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h
-# documentation, test, and support files
-DOCS= README install.doc usage.doc cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \
-        wrjpgcom.1 wizard.doc example.c libjpeg.doc structure.doc \
-        coderules.doc filelist.doc change.log
-MKFILES= configure makefile.cfg makefile.ansi makefile.unix makefile.bcc \
-        makefile.mc6 makefile.dj makefile.wat makefile.vc makelib.ds \
-        makeapps.ds makeproj.mac makcjpeg.st makdjpeg.st makljpeg.st \
-        maktjpeg.st makefile.manx makefile.sas makefile.mms makefile.vms \
-        makvms.opt
-CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
-        jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
-        jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltconfig ltmain.sh
-OTHERFILES= jconfig.doc ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm
-TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
-        testimgp.jpg
-DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \
-        $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES)
-# library object files common to compression and decompression
-COMOBJECTS= jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM)
-# compression library object files
-CLIBOBJECTS= jcapimin.o jcapistd.o jctrans.o jcparam.o jdatadst.o jcinit.o \
-        jcmaster.o jcmarker.o jcmainct.o jcprepct.o jccoefct.o jccolor.o \
-        jcsample.o jchuff.o jcphuff.o jcdctmgr.o jfdctfst.o jfdctflt.o \
-        jfdctint.o
-# decompression library object files
-DLIBOBJECTS= jdapimin.o jdapistd.o jdtrans.o jdatasrc.o jdmaster.o \
-        jdinput.o jdmarker.o jdhuff.o jdphuff.o jdmainct.o jdcoefct.o \
-        jdpostct.o jddctmgr.o jidctfst.o jidctflt.o jidctint.o jidctred.o \
-        jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o
-# These objectfiles are included in libjpeg.a
-LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS)
-# object files for sample applications (excluding library files)
-COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \
-        cdjpeg.o
-DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \
-        cdjpeg.o
-TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o
-
-
-all: libjpeg.a cjpeg djpeg jpegtran rdjpgcom wrjpgcom
-
-libjpeg.a: $(LIBOBJECTS)
-	$(RM) libjpeg.a
-	$(AR) libjpeg.a  $(LIBOBJECTS)
-	$(AR2) libjpeg.a
-
-cjpeg: $(COBJECTS) libjpeg.a
-	$(LN) $(LDFLAGS) -o cjpeg $(COBJECTS) libjpeg.a $(LDLIBS)
-
-djpeg: $(DOBJECTS) libjpeg.a
-	$(LN) $(LDFLAGS) -o djpeg $(DOBJECTS) libjpeg.a $(LDLIBS)
-
-jpegtran: $(TROBJECTS) libjpeg.a
-	$(LN) $(LDFLAGS) -o jpegtran $(TROBJECTS) libjpeg.a $(LDLIBS)
-
-rdjpgcom: rdjpgcom.o
-	$(LN) $(LDFLAGS) -o rdjpgcom rdjpgcom.o $(LDLIBS)
-
-wrjpgcom: wrjpgcom.o
-	$(LN) $(LDFLAGS) -o wrjpgcom wrjpgcom.o $(LDLIBS)
-
-jconfig.h: jconfig.doc
-	echo You must prepare a system-dependent jconfig.h file.
-	echo Please read the installation directions in install.doc.
-	exit 1
-
-clean:
-	$(RM) *.o cjpeg djpeg jpegtran libjpeg.a rdjpgcom wrjpgcom
-	$(RM) core testout*
-
-test: cjpeg djpeg jpegtran
-	$(RM) testout*
-	./djpeg -dct int -ppm -outfile testout.ppm  testorig.jpg
-	./djpeg -dct int -bmp -colors 256 -outfile testout.bmp  testorig.jpg
-	./cjpeg -dct int -outfile testout.jpg  testimg.ppm
-	./djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg
-	./cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm
-	./jpegtran -outfile testoutt.jpg testprog.jpg
-	cmp testimg.ppm testout.ppm
-	cmp testimg.bmp testout.bmp
-	cmp testimg.jpg testout.jpg
-	cmp testimg.ppm testoutp.ppm
-	cmp testimgp.jpg testoutp.jpg
-	cmp testorig.jpg testoutt.jpg
-
-
-jcapimin.o: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcapistd.o: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccoefct.o: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccolor.o: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcdctmgr.o: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jchuff.o: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcinit.o: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmainct.o: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmarker.o: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmaster.o: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcomapi.o: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcparam.o: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcphuff.o: jcphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcprepct.o: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcsample.o: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jctrans.o: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapimin.o: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapistd.o: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdatadst.o: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdatasrc.o: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdcoefct.o: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdcolor.o: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jddctmgr.o: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jdhuff.o: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdinput.o: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmainct.o: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmarker.o: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmaster.o: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmerge.o: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdphuff.o: jdphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdpostct.o: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdsample.o: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdtrans.o: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jerror.o: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h
-jfdctflt.o: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctfst.o: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctint.o: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctflt.o: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctfst.o: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctint.o: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctred.o: jidctred.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jquant1.o: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jquant2.o: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jutils.o: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jmemmgr.o: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemansi.o: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemname.o: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemnobs.o: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemdos.o: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemmac.o: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-cjpeg.o: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-djpeg.o: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-jpegtran.o: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h
-rdjpgcom.o: rdjpgcom.c jinclude.h jconfig.h
-wrjpgcom.o: wrjpgcom.c jinclude.h jconfig.h
-cdjpeg.o: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdcolmap.o: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdswitch.o: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-transupp.o: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h
-rdppm.o: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrppm.o: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdgif.o: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrgif.o: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdtarga.o: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrtarga.o: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdbmp.o: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrbmp.o: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdrle.o: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrrle.o: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
diff --git a/src/3rdparty/libjpeg/makefile.bcc b/src/3rdparty/libjpeg/makefile.bcc
deleted file mode 100644
index a1cfcde66..000000000
--- a/src/3rdparty/libjpeg/makefile.bcc
+++ /dev/null
@@ -1,285 +0,0 @@
-# Makefile for Independent JPEG Group's software
-
-# This makefile is suitable for Borland C on MS-DOS or OS/2.
-# It works with Borland C++ for DOS, revision 3.0 or later,
-# and has been tested with Borland C++ for OS/2.
-# Watch out for optimization bugs in the OS/2 compilers --- see notes below!
-# Thanks to Tom Wright and Ge' Weijers (original DOS) and
-# Ken Porter (OS/2) for this file.
-
-# Read installation instructions before saying "make" !!
-
-# Are we under DOS or OS/2?
-!if !$d(DOS) && !$d(OS2)
-!if $d(__OS2__)
-OS2=1
-!else
-DOS=1
-!endif
-!endif
-
-# The name of your C compiler:
-CC= bcc
-
-# You may need to adjust these cc options:
-!if $d(DOS)
-CFLAGS= -O2 -mm -w-par -w-stu -w-ccc -w-rch
-!else
-CFLAGS= -O1 -w-par -w-stu -w-ccc -w-rch
-!endif
-# -O2 enables full code optimization (for pre-3.0 Borland C++, use -O -G -Z).
-# -O2 is buggy in Borland OS/2 C++ revision 2.0, so use -O1 there for now.
-# If you have Borland OS/2 C++ revision 1.0, use -O or no optimization at all.
-# -mm selects medium memory model (near data, far code pointers; DOS only!)
-# -w-par suppresses warnings about unused function parameters
-# -w-stu suppresses warnings about incomplete structures
-# -w-ccc suppresses warnings about compile-time-constant conditions
-# -w-rch suppresses warnings about unreachable code
-# Generally, we recommend defining any configuration symbols in jconfig.h,
-# NOT via -D switches here.
-
-# Link-time cc options:
-!if $d(DOS)
-LDFLAGS= -mm
-# memory model option here must match CFLAGS!
-!else
-LDFLAGS=
-# -lai full-screen app
-# -lc case-significant link
-!endif
-
-# Put here the object file name for the correct system-dependent memory
-# manager file.
-# For DOS, we recommend jmemdos.c and jmemdosa.asm.
-# For OS/2, we recommend jmemnobs.c (flat memory!)
-# SYSDEPMEMLIB must list the same files with "+" signs for the librarian.
-!if $d(DOS)
-SYSDEPMEM= jmemdos.obj jmemdosa.obj
-SYSDEPMEMLIB= +jmemdos.obj +jmemdosa.obj
-!else
-SYSDEPMEM= jmemnobs.obj
-SYSDEPMEMLIB= +jmemnobs.obj
-!endif
-
-# End of configurable options.
-
-
-# source files: JPEG library proper
-LIBSOURCES= jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c \
-        jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c \
-        jcphuff.c jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c \
-        jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c \
-        jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c \
-        jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c \
-        jfdctint.c jidctflt.c jidctfst.c jidctint.c jidctred.c jquant1.c \
-        jquant2.c jutils.c jmemmgr.c
-# memmgr back ends: compile only one of these into a working library
-SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c
-# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom
-APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \
-        rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \
-        rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c
-SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES)
-# files included by source files
-INCLUDES= jchuff.h jdhuff.h jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h \
-        jpegint.h jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h
-# documentation, test, and support files
-DOCS= README install.doc usage.doc cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \
-        wrjpgcom.1 wizard.doc example.c libjpeg.doc structure.doc \
-        coderules.doc filelist.doc change.log
-MKFILES= configure makefile.cfg makefile.ansi makefile.unix makefile.bcc \
-        makefile.mc6 makefile.dj makefile.wat makefile.vc makelib.ds \
-        makeapps.ds makeproj.mac makcjpeg.st makdjpeg.st makljpeg.st \
-        maktjpeg.st makefile.manx makefile.sas makefile.mms makefile.vms \
-        makvms.opt
-CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
-        jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
-        jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltconfig ltmain.sh
-OTHERFILES= jconfig.doc ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm
-TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
-        testimgp.jpg
-DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \
-        $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES)
-# library object files common to compression and decompression
-COMOBJECTS= jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM)
-# compression library object files
-CLIBOBJECTS= jcapimin.obj jcapistd.obj jctrans.obj jcparam.obj jdatadst.obj \
-        jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj jcprepct.obj \
-        jccoefct.obj jccolor.obj jcsample.obj jchuff.obj jcphuff.obj \
-        jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj
-# decompression library object files
-DLIBOBJECTS= jdapimin.obj jdapistd.obj jdtrans.obj jdatasrc.obj \
-        jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdphuff.obj \
-        jdmainct.obj jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj \
-        jidctflt.obj jidctint.obj jidctred.obj jdsample.obj jdcolor.obj \
-        jquant1.obj jquant2.obj jdmerge.obj
-# These objectfiles are included in libjpeg.lib
-LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS)
-# object files for sample applications (excluding library files)
-COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \
-        rdswitch.obj cdjpeg.obj
-DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \
-        rdcolmap.obj cdjpeg.obj
-TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj
-
-
-all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe
-
-libjpeg.lib: $(LIBOBJECTS)
-	- del libjpeg.lib
-	tlib libjpeg.lib /E /C @&&|
-+jcapimin.obj +jcapistd.obj +jctrans.obj +jcparam.obj +jdatadst.obj &
-+jcinit.obj +jcmaster.obj +jcmarker.obj +jcmainct.obj +jcprepct.obj &
-+jccoefct.obj +jccolor.obj +jcsample.obj +jchuff.obj +jcphuff.obj &
-+jcdctmgr.obj +jfdctfst.obj +jfdctflt.obj +jfdctint.obj +jdapimin.obj &
-+jdapistd.obj +jdtrans.obj +jdatasrc.obj +jdmaster.obj +jdinput.obj &
-+jdmarker.obj +jdhuff.obj +jdphuff.obj +jdmainct.obj +jdcoefct.obj &
-+jdpostct.obj +jddctmgr.obj +jidctfst.obj +jidctflt.obj +jidctint.obj &
-+jidctred.obj +jdsample.obj +jdcolor.obj +jquant1.obj +jquant2.obj &
-+jdmerge.obj +jcomapi.obj +jutils.obj +jerror.obj +jmemmgr.obj &
-$(SYSDEPMEMLIB)
-|
-
-cjpeg.exe: $(COBJECTS) libjpeg.lib
-	$(CC) $(LDFLAGS) -ecjpeg.exe $(COBJECTS) libjpeg.lib
-
-djpeg.exe: $(DOBJECTS) libjpeg.lib
-	$(CC) $(LDFLAGS) -edjpeg.exe $(DOBJECTS) libjpeg.lib
-
-jpegtran.exe: $(TROBJECTS) libjpeg.lib
-	$(CC) $(LDFLAGS) -ejpegtran.exe $(TROBJECTS) libjpeg.lib
-
-rdjpgcom.exe: rdjpgcom.c
-!if $d(DOS)
-	$(CC) -ms -O rdjpgcom.c
-!else
-	$(CC) $(CFLAGS) rdjpgcom.c
-!endif
-
-# On DOS, wrjpgcom needs large model so it can malloc a 64K chunk
-wrjpgcom.exe: wrjpgcom.c
-!if $d(DOS)
-	$(CC) -ml -O wrjpgcom.c
-!else
-	$(CC) $(CFLAGS) wrjpgcom.c
-!endif
-
-# This "{}" syntax allows Borland Make to "batch" source files.
-# In this way, each run of the compiler can build many modules.
-.c.obj:
-	$(CC) $(CFLAGS) -c{ $<}
-
-jconfig.h: jconfig.doc
-	echo You must prepare a system-dependent jconfig.h file.
-	echo Please read the installation directions in install.doc.
-	exit 1
-
-clean:
-	- del *.obj
-	- del libjpeg.lib
-	- del cjpeg.exe
-	- del djpeg.exe
-	- del jpegtran.exe
-	- del rdjpgcom.exe
-	- del wrjpgcom.exe
-	- del testout*.*
-
-test: cjpeg.exe djpeg.exe jpegtran.exe
-	- del testout*.*
-	djpeg -dct int -ppm -outfile testout.ppm  testorig.jpg
-	djpeg -dct int -bmp -colors 256 -outfile testout.bmp  testorig.jpg
-	cjpeg -dct int -outfile testout.jpg  testimg.ppm
-	djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg
-	cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm
-	jpegtran -outfile testoutt.jpg testprog.jpg
-!if $d(DOS)
-	fc /b testimg.ppm testout.ppm
-	fc /b testimg.bmp testout.bmp
-	fc /b testimg.jpg testout.jpg
-	fc /b testimg.ppm testoutp.ppm
-	fc /b testimgp.jpg testoutp.jpg
-	fc /b testorig.jpg testoutt.jpg
-!else
-	echo n > n.tmp
-	comp testimg.ppm testout.ppm < n.tmp
-	comp testimg.bmp testout.bmp < n.tmp
-	comp testimg.jpg testout.jpg < n.tmp
-	comp testimg.ppm testoutp.ppm < n.tmp
-	comp testimgp.jpg testoutp.jpg < n.tmp
-	comp testorig.jpg testoutt.jpg < n.tmp
-	del n.tmp
-!endif
-
-
-jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcphuff.obj: jcphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdphuff.obj: jdphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h
-jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctred.obj: jidctred.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h
-rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h
-wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h
-cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h
-rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-jmemdosa.obj: jmemdosa.asm
-	tasm /mx jmemdosa.asm
diff --git a/src/3rdparty/libjpeg/makefile.cfg b/src/3rdparty/libjpeg/makefile.cfg
deleted file mode 100644
index f25e42e3e..000000000
--- a/src/3rdparty/libjpeg/makefile.cfg
+++ /dev/null
@@ -1,319 +0,0 @@
-# Makefile for Independent JPEG Group's software
-
-# makefile.cfg is edited by configure to produce a custom Makefile.
-
-# Read installation instructions before saying "make" !!
-
-# For compiling with source and object files in different directories.
-srcdir = @srcdir@
-VPATH = @srcdir@
-
-# Where to install the programs and man pages.
-prefix = @prefix@
-exec_prefix = @exec_prefix@
-bindir = $(exec_prefix)/bin
-libdir = $(exec_prefix)/lib
-includedir = $(prefix)/include
-binprefix =
-manprefix =
-manext = 1
-mandir = $(prefix)/man/man$(manext)
-
-# The name of your C compiler:
-CC= @CC@
-
-# You may need to adjust these cc options:
-CFLAGS= @CFLAGS@ @CPPFLAGS@ @INCLUDEFLAGS@
-# Generally, we recommend defining any configuration symbols in jconfig.h,
-# NOT via -D switches here.
-# However, any special defines for ansi2knr.c may be included here:
-ANSI2KNRFLAGS= @ANSI2KNRFLAGS@
-
-# Link-time cc options:
-LDFLAGS= @LDFLAGS@
-
-# To link any special libraries, add the necessary -l commands here.
-LDLIBS= @LIBS@
-
-# If using GNU libtool, LIBTOOL references it; if not, LIBTOOL is empty.
-LIBTOOL = @LIBTOOL@
-# $(O) expands to "lo" if using libtool, plain "o" if not.
-# Similarly, $(A) expands to "la" or "a".
-O = @O@
-A = @A@
-
-# Library version ID; libtool uses this for the shared library version number.
-# Note: we suggest this match the macro of the same name in jpeglib.h.
-JPEG_LIB_VERSION = @JPEG_LIB_VERSION@
-
-# Put here the object file name for the correct system-dependent memory
-# manager file.  For Unix this is usually jmemnobs.o, but you may want
-# to use jmemansi.o or jmemname.o if you have limited swap space.
-SYSDEPMEM= @MEMORYMGR@
-
-# miscellaneous OS-dependent stuff
-SHELL= /bin/sh
-# linker
-LN= @LN@
-# file deletion command
-RM= rm -f
-# directory creation command
-MKDIR= mkdir
-# library (.a) file creation command
-AR= ar rc
-# second step in .a creation (use "touch" if not needed)
-AR2= @RANLIB@
-# installation program
-INSTALL= @INSTALL@
-INSTALL_PROGRAM= @INSTALL_PROGRAM@
-INSTALL_LIB= @INSTALL_LIB@
-INSTALL_DATA= @INSTALL_DATA@
-
-# End of configurable options.
-
-
-# source files: JPEG library proper
-LIBSOURCES= jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c \
-        jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c \
-        jcphuff.c jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c \
-        jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c \
-        jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c \
-        jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c \
-        jfdctint.c jidctflt.c jidctfst.c jidctint.c jidctred.c jquant1.c \
-        jquant2.c jutils.c jmemmgr.c
-# memmgr back ends: compile only one of these into a working library
-SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c
-# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom
-APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \
-        rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \
-        rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c
-SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES)
-# files included by source files
-INCLUDES= jchuff.h jdhuff.h jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h \
-        jpegint.h jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h
-# documentation, test, and support files
-DOCS= README install.doc usage.doc cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \
-        wrjpgcom.1 wizard.doc example.c libjpeg.doc structure.doc \
-        coderules.doc filelist.doc change.log
-MKFILES= configure makefile.cfg makefile.ansi makefile.unix makefile.bcc \
-        makefile.mc6 makefile.dj makefile.wat makefile.vc makelib.ds \
-        makeapps.ds makeproj.mac makcjpeg.st makdjpeg.st makljpeg.st \
-        maktjpeg.st makefile.manx makefile.sas makefile.mms makefile.vms \
-        makvms.opt
-CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
-        jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
-        jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltconfig ltmain.sh
-OTHERFILES= jconfig.doc ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm
-TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
-        testimgp.jpg
-DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \
-        $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES)
-# library object files common to compression and decompression
-COMOBJECTS= jcomapi.$(O) jutils.$(O) jerror.$(O) jmemmgr.$(O) $(SYSDEPMEM)
-# compression library object files
-CLIBOBJECTS= jcapimin.$(O) jcapistd.$(O) jctrans.$(O) jcparam.$(O) \
-        jdatadst.$(O) jcinit.$(O) jcmaster.$(O) jcmarker.$(O) jcmainct.$(O) \
-        jcprepct.$(O) jccoefct.$(O) jccolor.$(O) jcsample.$(O) jchuff.$(O) \
-        jcphuff.$(O) jcdctmgr.$(O) jfdctfst.$(O) jfdctflt.$(O) \
-        jfdctint.$(O)
-# decompression library object files
-DLIBOBJECTS= jdapimin.$(O) jdapistd.$(O) jdtrans.$(O) jdatasrc.$(O) \
-        jdmaster.$(O) jdinput.$(O) jdmarker.$(O) jdhuff.$(O) jdphuff.$(O) \
-        jdmainct.$(O) jdcoefct.$(O) jdpostct.$(O) jddctmgr.$(O) \
-        jidctfst.$(O) jidctflt.$(O) jidctint.$(O) jidctred.$(O) \
-        jdsample.$(O) jdcolor.$(O) jquant1.$(O) jquant2.$(O) jdmerge.$(O)
-# These objectfiles are included in libjpeg.a
-LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS)
-# object files for sample applications (excluding library files)
-COBJECTS= cjpeg.$(O) rdppm.$(O) rdgif.$(O) rdtarga.$(O) rdrle.$(O) \
-        rdbmp.$(O) rdswitch.$(O) cdjpeg.$(O)
-DOBJECTS= djpeg.$(O) wrppm.$(O) wrgif.$(O) wrtarga.$(O) wrrle.$(O) \
-        wrbmp.$(O) rdcolmap.$(O) cdjpeg.$(O)
-TROBJECTS= jpegtran.$(O) rdswitch.$(O) cdjpeg.$(O) transupp.$(O)
-
-
-all: @A2K_DEPS@ libjpeg.$(A) cjpeg djpeg jpegtran rdjpgcom wrjpgcom
-
-# Special compilation rules to support ansi2knr and libtool.
-.SUFFIXES: .lo .la
-
-# How to compile with libtool.
-@COM_LT@.c.lo:
-@COM_LT@	$(LIBTOOL) --mode=compile $(CC) $(CFLAGS) -c $(srcdir)/$*.c
-
-# How to use ansi2knr, when not using libtool.
-@COM_A2K@.c.o:
-@COM_A2K@	./ansi2knr $(srcdir)/$*.c knr/$*.c
-@COM_A2K@	$(CC) $(CFLAGS) -c knr/$*.c
-@COM_A2K@	$(RM) knr/$*.c
-
-# How to use ansi2knr AND libtool.
-@COM_A2K@.c.lo:
-@COM_A2K@	./ansi2knr $(srcdir)/$*.c knr/$*.c
-@COM_A2K@	$(LIBTOOL) --mode=compile $(CC) $(CFLAGS) -c knr/$*.c
-@COM_A2K@	$(RM) knr/$*.c
-
-ansi2knr: ansi2knr.c
-	$(CC) $(CFLAGS) $(ANSI2KNRFLAGS) -o ansi2knr $(srcdir)/ansi2knr.c
-	$(MKDIR) knr
-
-# the library:
-
-# without libtool:
-libjpeg.a: @A2K_DEPS@ $(LIBOBJECTS)
-	$(RM) libjpeg.a
-	$(AR) libjpeg.a  $(LIBOBJECTS)
-	$(AR2) libjpeg.a
-
-# with libtool:
-libjpeg.la: @A2K_DEPS@ $(LIBOBJECTS)
-	$(LIBTOOL) --mode=link $(CC) -o libjpeg.la $(LIBOBJECTS) \
-		-rpath $(libdir) -version-info $(JPEG_LIB_VERSION)
-
-# sample programs:
-
-cjpeg: $(COBJECTS) libjpeg.$(A)
-	$(LN) $(LDFLAGS) -o cjpeg $(COBJECTS) libjpeg.$(A) $(LDLIBS)
-
-djpeg: $(DOBJECTS) libjpeg.$(A)
-	$(LN) $(LDFLAGS) -o djpeg $(DOBJECTS) libjpeg.$(A) $(LDLIBS)
-
-jpegtran: $(TROBJECTS) libjpeg.$(A)
-	$(LN) $(LDFLAGS) -o jpegtran $(TROBJECTS) libjpeg.$(A) $(LDLIBS)
-
-rdjpgcom: rdjpgcom.$(O)
-	$(LN) $(LDFLAGS) -o rdjpgcom rdjpgcom.$(O) $(LDLIBS)
-
-wrjpgcom: wrjpgcom.$(O)
-	$(LN) $(LDFLAGS) -o wrjpgcom wrjpgcom.$(O) $(LDLIBS)
-
-# Installation rules:
-
-install: cjpeg djpeg jpegtran rdjpgcom wrjpgcom @FORCE_INSTALL_LIB@
-	$(INSTALL_PROGRAM) cjpeg $(bindir)/$(binprefix)cjpeg
-	$(INSTALL_PROGRAM) djpeg $(bindir)/$(binprefix)djpeg
-	$(INSTALL_PROGRAM) jpegtran $(bindir)/$(binprefix)jpegtran
-	$(INSTALL_PROGRAM) rdjpgcom $(bindir)/$(binprefix)rdjpgcom
-	$(INSTALL_PROGRAM) wrjpgcom $(bindir)/$(binprefix)wrjpgcom
-	$(INSTALL_DATA) $(srcdir)/cjpeg.1 $(mandir)/$(manprefix)cjpeg.$(manext)
-	$(INSTALL_DATA) $(srcdir)/djpeg.1 $(mandir)/$(manprefix)djpeg.$(manext)
-	$(INSTALL_DATA) $(srcdir)/jpegtran.1 $(mandir)/$(manprefix)jpegtran.$(manext)
-	$(INSTALL_DATA) $(srcdir)/rdjpgcom.1 $(mandir)/$(manprefix)rdjpgcom.$(manext)
-	$(INSTALL_DATA) $(srcdir)/wrjpgcom.1 $(mandir)/$(manprefix)wrjpgcom.$(manext)
-
-install-lib: libjpeg.$(A) install-headers
-	$(INSTALL_LIB) libjpeg.$(A) $(libdir)/$(binprefix)libjpeg.$(A)
-
-install-headers: jconfig.h
-	$(INSTALL_DATA) jconfig.h $(includedir)/jconfig.h
-	$(INSTALL_DATA) $(srcdir)/jpeglib.h $(includedir)/jpeglib.h
-	$(INSTALL_DATA) $(srcdir)/jmorecfg.h $(includedir)/jmorecfg.h
-	$(INSTALL_DATA) $(srcdir)/jerror.h $(includedir)/jerror.h
-
-clean:
-	$(RM) *.o *.lo libjpeg.a libjpeg.la
-	$(RM) cjpeg djpeg jpegtran rdjpgcom wrjpgcom
-	$(RM) ansi2knr core testout* config.log config.status
-	$(RM) -r knr .libs _libs
-
-distclean: clean
-	$(RM) Makefile jconfig.h libtool config.cache
-
-test: cjpeg djpeg jpegtran
-	$(RM) testout*
-	./djpeg -dct int -ppm -outfile testout.ppm  $(srcdir)/testorig.jpg
-	./djpeg -dct int -bmp -colors 256 -outfile testout.bmp  $(srcdir)/testorig.jpg
-	./cjpeg -dct int -outfile testout.jpg  $(srcdir)/testimg.ppm
-	./djpeg -dct int -ppm -outfile testoutp.ppm $(srcdir)/testprog.jpg
-	./cjpeg -dct int -progressive -opt -outfile testoutp.jpg $(srcdir)/testimg.ppm
-	./jpegtran -outfile testoutt.jpg $(srcdir)/testprog.jpg
-	cmp $(srcdir)/testimg.ppm testout.ppm
-	cmp $(srcdir)/testimg.bmp testout.bmp
-	cmp $(srcdir)/testimg.jpg testout.jpg
-	cmp $(srcdir)/testimg.ppm testoutp.ppm
-	cmp $(srcdir)/testimgp.jpg testoutp.jpg
-	cmp $(srcdir)/testorig.jpg testoutt.jpg
-
-check: test
-
-# Mistake catcher:
-
-jconfig.h: jconfig.doc
-	echo You must prepare a system-dependent jconfig.h file.
-	echo Please read the installation directions in install.doc.
-	exit 1
-
-# GNU Make likes to know which target names are not really files to be made:
-.PHONY: all install install-lib install-headers clean distclean test check
-
-
-jcapimin.$(O): jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcapistd.$(O): jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccoefct.$(O): jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccolor.$(O): jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcdctmgr.$(O): jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jchuff.$(O): jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcinit.$(O): jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmainct.$(O): jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmarker.$(O): jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmaster.$(O): jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcomapi.$(O): jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcparam.$(O): jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcphuff.$(O): jcphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcprepct.$(O): jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcsample.$(O): jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jctrans.$(O): jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapimin.$(O): jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapistd.$(O): jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdatadst.$(O): jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdatasrc.$(O): jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdcoefct.$(O): jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdcolor.$(O): jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jddctmgr.$(O): jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jdhuff.$(O): jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdinput.$(O): jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmainct.$(O): jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmarker.$(O): jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmaster.$(O): jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmerge.$(O): jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdphuff.$(O): jdphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdpostct.$(O): jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdsample.$(O): jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdtrans.$(O): jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jerror.$(O): jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h
-jfdctflt.$(O): jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctfst.$(O): jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctint.$(O): jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctflt.$(O): jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctfst.$(O): jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctint.$(O): jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctred.$(O): jidctred.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jquant1.$(O): jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jquant2.$(O): jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jutils.$(O): jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jmemmgr.$(O): jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemansi.$(O): jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemname.$(O): jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemnobs.$(O): jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemdos.$(O): jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemmac.$(O): jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-cjpeg.$(O): cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-djpeg.$(O): djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-jpegtran.$(O): jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h
-rdjpgcom.$(O): rdjpgcom.c jinclude.h jconfig.h
-wrjpgcom.$(O): wrjpgcom.c jinclude.h jconfig.h
-cdjpeg.$(O): cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdcolmap.$(O): rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdswitch.$(O): rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-transupp.$(O): transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h
-rdppm.$(O): rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrppm.$(O): wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdgif.$(O): rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrgif.$(O): wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdtarga.$(O): rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrtarga.$(O): wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdbmp.$(O): rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrbmp.$(O): wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdrle.$(O): rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrrle.$(O): wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
diff --git a/src/3rdparty/libjpeg/makefile.dj b/src/3rdparty/libjpeg/makefile.dj
deleted file mode 100644
index f766d25e3..000000000
--- a/src/3rdparty/libjpeg/makefile.dj
+++ /dev/null
@@ -1,220 +0,0 @@
-# Makefile for Independent JPEG Group's software
-
-# This makefile is for DJGPP (Delorie's GNU C port on MS-DOS), v2.0 or later.
-# Thanks to Frank J. Donahoe for this version.
-
-# Read installation instructions before saying "make" !!
-
-# The name of your C compiler:
-CC= gcc
-
-# You may need to adjust these cc options:
-CFLAGS= -O2 -Wall -I.
-# Generally, we recommend defining any configuration symbols in jconfig.h,
-# NOT via -D switches here.
-
-# Link-time cc options:
-LDFLAGS= -s
-
-# To link any special libraries, add the necessary -l commands here.
-LDLIBS= 
-
-# Put here the object file name for the correct system-dependent memory
-# manager file.  For DJGPP this is usually jmemnobs.o, but you could
-# use jmemname.o if you want to use named temp files instead of swap space.
-SYSDEPMEM= jmemnobs.o
-
-# miscellaneous OS-dependent stuff
-# linker
-LN= $(CC)
-# file deletion command
-RM= del
-# library (.a) file creation command
-AR= ar rc
-# second step in .a creation (use "touch" if not needed)
-AR2= ranlib
-
-# End of configurable options.
-
-
-# source files: JPEG library proper
-LIBSOURCES= jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c \
-        jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c \
-        jcphuff.c jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c \
-        jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c \
-        jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c \
-        jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c \
-        jfdctint.c jidctflt.c jidctfst.c jidctint.c jidctred.c jquant1.c \
-        jquant2.c jutils.c jmemmgr.c
-# memmgr back ends: compile only one of these into a working library
-SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c
-# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom
-APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \
-        rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \
-        rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c
-SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES)
-# files included by source files
-INCLUDES= jchuff.h jdhuff.h jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h \
-        jpegint.h jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h
-# documentation, test, and support files
-DOCS= README install.doc usage.doc cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \
-        wrjpgcom.1 wizard.doc example.c libjpeg.doc structure.doc \
-        coderules.doc filelist.doc change.log
-MKFILES= configure makefile.cfg makefile.ansi makefile.unix makefile.bcc \
-        makefile.mc6 makefile.dj makefile.wat makefile.vc makelib.ds \
-        makeapps.ds makeproj.mac makcjpeg.st makdjpeg.st makljpeg.st \
-        maktjpeg.st makefile.manx makefile.sas makefile.mms makefile.vms \
-        makvms.opt
-CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
-        jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
-        jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltconfig ltmain.sh
-OTHERFILES= jconfig.doc ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm
-TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
-        testimgp.jpg
-DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \
-        $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES)
-# library object files common to compression and decompression
-COMOBJECTS= jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM)
-# compression library object files
-CLIBOBJECTS= jcapimin.o jcapistd.o jctrans.o jcparam.o jdatadst.o jcinit.o \
-        jcmaster.o jcmarker.o jcmainct.o jcprepct.o jccoefct.o jccolor.o \
-        jcsample.o jchuff.o jcphuff.o jcdctmgr.o jfdctfst.o jfdctflt.o \
-        jfdctint.o
-# decompression library object files
-DLIBOBJECTS= jdapimin.o jdapistd.o jdtrans.o jdatasrc.o jdmaster.o \
-        jdinput.o jdmarker.o jdhuff.o jdphuff.o jdmainct.o jdcoefct.o \
-        jdpostct.o jddctmgr.o jidctfst.o jidctflt.o jidctint.o jidctred.o \
-        jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o
-# These objectfiles are included in libjpeg.a
-LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS)
-# object files for sample applications (excluding library files)
-COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \
-        cdjpeg.o
-DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \
-        cdjpeg.o
-TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o
-
-
-all: libjpeg.a cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe
-
-libjpeg.a: $(LIBOBJECTS)
-	$(RM) libjpeg.a
-	$(AR) libjpeg.a  $(LIBOBJECTS)
-	$(AR2) libjpeg.a
-
-cjpeg.exe: $(COBJECTS) libjpeg.a
-	$(LN) $(LDFLAGS) -o cjpeg.exe $(COBJECTS) libjpeg.a $(LDLIBS)
-
-djpeg.exe: $(DOBJECTS) libjpeg.a
-	$(LN) $(LDFLAGS) -o djpeg.exe $(DOBJECTS) libjpeg.a $(LDLIBS)
-
-jpegtran.exe: $(TROBJECTS) libjpeg.a
-	$(LN) $(LDFLAGS) -o jpegtran.exe $(TROBJECTS) libjpeg.a $(LDLIBS)
-
-rdjpgcom.exe: rdjpgcom.o
-	$(LN) $(LDFLAGS) -o rdjpgcom.exe rdjpgcom.o $(LDLIBS)
-
-wrjpgcom.exe: wrjpgcom.o
-	$(LN) $(LDFLAGS) -o wrjpgcom.exe wrjpgcom.o $(LDLIBS)
-
-jconfig.h: jconfig.doc
-	echo You must prepare a system-dependent jconfig.h file.
-	echo Please read the installation directions in install.doc.
-	exit 1
-
-clean:
-	$(RM) *.o
-	$(RM) cjpeg.exe
-	$(RM) djpeg.exe
-	$(RM) jpegtran.exe
-	$(RM) rdjpgcom.exe
-	$(RM) wrjpgcom.exe
-	$(RM) libjpeg.a
-	$(RM) testout*.*
-
-test: cjpeg.exe djpeg.exe jpegtran.exe
-	$(RM) testout*.*
-	./djpeg -dct int -ppm -outfile testout.ppm  testorig.jpg
-	./djpeg -dct int -bmp -colors 256 -outfile testout.bmp  testorig.jpg
-	./cjpeg -dct int -outfile testout.jpg  testimg.ppm
-	./djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg
-	./cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm
-	./jpegtran -outfile testoutt.jpg testprog.jpg
-	fc /b testimg.ppm testout.ppm
-	fc /b testimg.bmp testout.bmp
-	fc /b testimg.jpg testout.jpg
-	fc /b testimg.ppm testoutp.ppm
-	fc /b testimgp.jpg testoutp.jpg
-	fc /b testorig.jpg testoutt.jpg
-
-
-jcapimin.o: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcapistd.o: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccoefct.o: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccolor.o: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcdctmgr.o: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jchuff.o: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcinit.o: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmainct.o: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmarker.o: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmaster.o: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcomapi.o: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcparam.o: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcphuff.o: jcphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcprepct.o: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcsample.o: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jctrans.o: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapimin.o: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapistd.o: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdatadst.o: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdatasrc.o: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdcoefct.o: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdcolor.o: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jddctmgr.o: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jdhuff.o: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdinput.o: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmainct.o: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmarker.o: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmaster.o: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmerge.o: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdphuff.o: jdphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdpostct.o: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdsample.o: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdtrans.o: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jerror.o: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h
-jfdctflt.o: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctfst.o: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctint.o: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctflt.o: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctfst.o: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctint.o: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctred.o: jidctred.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jquant1.o: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jquant2.o: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jutils.o: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jmemmgr.o: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemansi.o: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemname.o: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemnobs.o: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemdos.o: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemmac.o: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-cjpeg.o: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-djpeg.o: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-jpegtran.o: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h
-rdjpgcom.o: rdjpgcom.c jinclude.h jconfig.h
-wrjpgcom.o: wrjpgcom.c jinclude.h jconfig.h
-cdjpeg.o: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdcolmap.o: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdswitch.o: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-transupp.o: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h
-rdppm.o: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrppm.o: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdgif.o: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrgif.o: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdtarga.o: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrtarga.o: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdbmp.o: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrbmp.o: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdrle.o: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrrle.o: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
diff --git a/src/3rdparty/libjpeg/makefile.manx b/src/3rdparty/libjpeg/makefile.manx
deleted file mode 100644
index 2aeab858e..000000000
--- a/src/3rdparty/libjpeg/makefile.manx
+++ /dev/null
@@ -1,214 +0,0 @@
-# Makefile for Independent JPEG Group's software
-
-# This makefile is for Amiga systems using Manx Aztec C ver 5.x.
-# Thanks to D.J. James (djjames@cup.portal.com) for this version.
-
-# Read installation instructions before saying "make" !!
-
-# The name of your C compiler:
-CC= cc
-
-# You may need to adjust these cc options:
-# Uncomment for generic 68000 code (will work on any Amiga)
-ARCHFLAGS= -sn
-
-# Uncomment for 68020/68030 code (faster, but won't run on 68000 CPU)
-#ARCHFLAGS= -c2
-
-CFLAGS= -MC -MD $(ARCHFLAGS) -spfam -r4
-
-# Link-time cc options:
-LDFLAGS= -g
-
-# To link any special libraries, add the necessary -l commands here.
-LDLIBS= -lml -lcl
-
-# Put here the object file name for the correct system-dependent memory
-# manager file.  For Amiga we recommend jmemname.o.
-SYSDEPMEM= jmemname.o
-
-# miscellaneous OS-dependent stuff
-# linker
-LN= ln
-# file deletion command
-RM= delete tquiet
-# library (.lib) file creation command
-AR= lb
-
-# End of configurable options.
-
-
-# source files: JPEG library proper
-LIBSOURCES= jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c \
-        jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c \
-        jcphuff.c jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c \
-        jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c \
-        jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c \
-        jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c \
-        jfdctint.c jidctflt.c jidctfst.c jidctint.c jidctred.c jquant1.c \
-        jquant2.c jutils.c jmemmgr.c
-# memmgr back ends: compile only one of these into a working library
-SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c
-# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom
-APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \
-        rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \
-        rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c
-SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES)
-# files included by source files
-INCLUDES= jchuff.h jdhuff.h jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h \
-        jpegint.h jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h
-# documentation, test, and support files
-DOCS= README install.doc usage.doc cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \
-        wrjpgcom.1 wizard.doc example.c libjpeg.doc structure.doc \
-        coderules.doc filelist.doc change.log
-MKFILES= configure makefile.cfg makefile.ansi makefile.unix makefile.bcc \
-        makefile.mc6 makefile.dj makefile.wat makefile.vc makelib.ds \
-        makeapps.ds makeproj.mac makcjpeg.st makdjpeg.st makljpeg.st \
-        maktjpeg.st makefile.manx makefile.sas makefile.mms makefile.vms \
-        makvms.opt
-CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
-        jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
-        jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltconfig ltmain.sh
-OTHERFILES= jconfig.doc ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm
-TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
-        testimgp.jpg
-DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \
-        $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES)
-# library object files common to compression and decompression
-COMOBJECTS= jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM)
-# compression library object files
-CLIBOBJECTS= jcapimin.o jcapistd.o jctrans.o jcparam.o jdatadst.o jcinit.o \
-        jcmaster.o jcmarker.o jcmainct.o jcprepct.o jccoefct.o jccolor.o \
-        jcsample.o jchuff.o jcphuff.o jcdctmgr.o jfdctfst.o jfdctflt.o \
-        jfdctint.o
-# decompression library object files
-DLIBOBJECTS= jdapimin.o jdapistd.o jdtrans.o jdatasrc.o jdmaster.o \
-        jdinput.o jdmarker.o jdhuff.o jdphuff.o jdmainct.o jdcoefct.o \
-        jdpostct.o jddctmgr.o jidctfst.o jidctflt.o jidctint.o jidctred.o \
-        jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o
-# These objectfiles are included in libjpeg.lib
-LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS)
-# object files for sample applications (excluding library files)
-COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \
-        cdjpeg.o
-DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \
-        cdjpeg.o
-TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o
-
-
-all: libjpeg.lib cjpeg djpeg jpegtran rdjpgcom wrjpgcom
-
-libjpeg.lib: $(LIBOBJECTS)
-	-$(RM) libjpeg.lib
-	$(AR) libjpeg.lib  $(LIBOBJECTS)
-
-cjpeg: $(COBJECTS) libjpeg.lib
-	$(LN) $(LDFLAGS) -o cjpeg $(COBJECTS) libjpeg.lib $(LDLIBS)
-
-djpeg: $(DOBJECTS) libjpeg.lib
-	$(LN) $(LDFLAGS) -o djpeg $(DOBJECTS) libjpeg.lib $(LDLIBS)
-
-jpegtran: $(TROBJECTS) libjpeg.lib
-	$(LN) $(LDFLAGS) -o jpegtran $(TROBJECTS) libjpeg.lib $(LDLIBS)
-
-rdjpgcom: rdjpgcom.o
-	$(LN) $(LDFLAGS) -o rdjpgcom rdjpgcom.o $(LDLIBS)
-
-wrjpgcom: wrjpgcom.o
-	$(LN) $(LDFLAGS) -o wrjpgcom wrjpgcom.o $(LDLIBS)
-
-jconfig.h: jconfig.doc
-	echo You must prepare a system-dependent jconfig.h file.
-	echo Please read the installation directions in install.doc.
-	exit 1
-
-clean:
-	-$(RM) *.o cjpeg djpeg jpegtran libjpeg.lib rdjpgcom wrjpgcom
-	-$(RM) core testout*.*
-
-test: cjpeg djpeg jpegtran
-	-$(RM) testout*.*
-	djpeg -dct int -ppm -outfile testout.ppm  testorig.jpg
-	djpeg -dct int -bmp -colors 256 -outfile testout.bmp  testorig.jpg
-	cjpeg -dct int -outfile testout.jpg  testimg.ppm
-	djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg
-	cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm
-	jpegtran -outfile testoutt.jpg testprog.jpg
-	cmp testimg.ppm testout.ppm
-	cmp testimg.bmp testout.bmp
-	cmp testimg.jpg testout.jpg
-	cmp testimg.ppm testoutp.ppm
-	cmp testimgp.jpg testoutp.jpg
-	cmp testorig.jpg testoutt.jpg
-
-
-jcapimin.o: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcapistd.o: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccoefct.o: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccolor.o: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcdctmgr.o: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jchuff.o: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcinit.o: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmainct.o: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmarker.o: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmaster.o: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcomapi.o: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcparam.o: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcphuff.o: jcphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcprepct.o: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcsample.o: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jctrans.o: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapimin.o: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapistd.o: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdatadst.o: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdatasrc.o: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdcoefct.o: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdcolor.o: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jddctmgr.o: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jdhuff.o: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdinput.o: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmainct.o: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmarker.o: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmaster.o: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmerge.o: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdphuff.o: jdphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdpostct.o: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdsample.o: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdtrans.o: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jerror.o: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h
-jfdctflt.o: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctfst.o: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctint.o: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctflt.o: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctfst.o: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctint.o: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctred.o: jidctred.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jquant1.o: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jquant2.o: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jutils.o: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jmemmgr.o: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemansi.o: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemname.o: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemnobs.o: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemdos.o: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemmac.o: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-cjpeg.o: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-djpeg.o: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-jpegtran.o: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h
-rdjpgcom.o: rdjpgcom.c jinclude.h jconfig.h
-wrjpgcom.o: wrjpgcom.c jinclude.h jconfig.h
-cdjpeg.o: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdcolmap.o: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdswitch.o: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-transupp.o: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h
-rdppm.o: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrppm.o: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdgif.o: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrgif.o: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdtarga.o: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrtarga.o: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdbmp.o: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrbmp.o: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdrle.o: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrrle.o: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
diff --git a/src/3rdparty/libjpeg/makefile.mc6 b/src/3rdparty/libjpeg/makefile.mc6
deleted file mode 100644
index 6aff05464..000000000
--- a/src/3rdparty/libjpeg/makefile.mc6
+++ /dev/null
@@ -1,249 +0,0 @@
-# Makefile for Independent JPEG Group's software
-
-# This makefile is for Microsoft C for MS-DOS, version 6.00A and up.
-# Use NMAKE, not Microsoft's brain-damaged MAKE.
-# Thanks to Alan Wright and Chris Turner of Olivetti Research Ltd.
-
-# Read installation instructions before saying "nmake" !!
-
-# You may need to adjust these compiler options:
-CFLAGS = -AM -Oecigt -Gs -W3
-# -AM medium memory model (or use -AS for small model, if you remove features)
-# -Oecigt -Gs  maximum safe optimisation (-Ol has bugs in MSC 6.00A)
-# -W3 warning level 3
-# You might also want to add -G2 if you have an 80286, etc.
-# Generally, we recommend defining any configuration symbols in jconfig.h,
-# NOT via -D switches here.
-
-# Jan-Herman Buining suggests the following switches for MS C 8.0 and a 486:
-# CFLAGS = /AM /f- /FPi87 /G3 /Gs /Gy /Ob1 /Oc /Oe /Og /Oi /Ol /On /Oo /Ot \
-#          /OV4 /W3
-# except for jquant1.c, which must be compiled with /Oo- to avoid a compiler
-# crash.
-
-# Ingar Steinsland suggests the following switches when building
-# a 16-bit Windows DLL:
-# CFLAGS = -ALw -Gsw -Zpe -W3 -O2 -Zi -Zd
-
-# Put here the object file name for the correct system-dependent memory
-# manager file.  For DOS, we recommend jmemdos.c and jmemdosa.asm.
-# (But not for Windows; see install.doc if you use this makefile for Windows.)
-SYSDEPMEM= jmemdos.obj jmemdosa.obj
-# SYSDEPMEMLIB must list the same files with "+" signs for the librarian.
-SYSDEPMEMLIB= +jmemdos.obj +jmemdosa.obj
-
-# End of configurable options.
-
-
-# source files: JPEG library proper
-LIBSOURCES= jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c \
-        jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c \
-        jcphuff.c jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c \
-        jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c \
-        jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c \
-        jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c \
-        jfdctint.c jidctflt.c jidctfst.c jidctint.c jidctred.c jquant1.c \
-        jquant2.c jutils.c jmemmgr.c
-# memmgr back ends: compile only one of these into a working library
-SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c
-# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom
-APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \
-        rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \
-        rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c
-SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES)
-# files included by source files
-INCLUDES= jchuff.h jdhuff.h jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h \
-        jpegint.h jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h
-# documentation, test, and support files
-DOCS= README install.doc usage.doc cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \
-        wrjpgcom.1 wizard.doc example.c libjpeg.doc structure.doc \
-        coderules.doc filelist.doc change.log
-MKFILES= configure makefile.cfg makefile.ansi makefile.unix makefile.bcc \
-        makefile.mc6 makefile.dj makefile.wat makefile.vc makelib.ds \
-        makeapps.ds makeproj.mac makcjpeg.st makdjpeg.st makljpeg.st \
-        maktjpeg.st makefile.manx makefile.sas makefile.mms makefile.vms \
-        makvms.opt
-CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
-        jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
-        jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltconfig ltmain.sh
-OTHERFILES= jconfig.doc ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm
-TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
-        testimgp.jpg
-DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \
-        $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES)
-# library object files common to compression and decompression
-COMOBJECTS= jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM)
-# compression library object files
-CLIBOBJECTS= jcapimin.obj jcapistd.obj jctrans.obj jcparam.obj jdatadst.obj \
-        jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj jcprepct.obj \
-        jccoefct.obj jccolor.obj jcsample.obj jchuff.obj jcphuff.obj \
-        jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj
-# decompression library object files
-DLIBOBJECTS= jdapimin.obj jdapistd.obj jdtrans.obj jdatasrc.obj \
-        jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdphuff.obj \
-        jdmainct.obj jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj \
-        jidctflt.obj jidctint.obj jidctred.obj jdsample.obj jdcolor.obj \
-        jquant1.obj jquant2.obj jdmerge.obj
-# These objectfiles are included in libjpeg.lib
-LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS)
-# object files for sample applications (excluding library files)
-COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \
-        rdswitch.obj cdjpeg.obj
-DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \
-        rdcolmap.obj cdjpeg.obj
-TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj
-
-# need linker response file because file list > 128 chars
-RFILE = libjpeg.ans
-
-
-all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe
-
-libjpeg.lib: $(LIBOBJECTS) $(RFILE)
-	del libjpeg.lib
-	lib @$(RFILE)
-
-# linker response file for building libjpeg.lib
-$(RFILE) : makefile
-	del $(RFILE)
-	echo libjpeg.lib >$(RFILE)
-# silly want-to-create-it prompt:
-	echo y >>$(RFILE)
-	echo +jcapimin.obj +jcapistd.obj +jctrans.obj +jcparam.obj & >>$(RFILE)
-	echo +jdatadst.obj +jcinit.obj +jcmaster.obj +jcmarker.obj & >>$(RFILE)
-	echo +jcmainct.obj +jcprepct.obj +jccoefct.obj & >>$(RFILE)
-	echo +jccolor.obj +jcsample.obj +jchuff.obj +jcphuff.obj & >>$(RFILE)
-	echo +jcdctmgr.obj +jfdctfst.obj +jfdctflt.obj & >>$(RFILE)
-	echo +jfdctint.obj +jdapimin.obj +jdapistd.obj & >>$(RFILE)
-	echo +jdtrans.obj +jdatasrc.obj +jdmaster.obj +jdinput.obj & >>$(RFILE)
-	echo +jdmarker.obj +jdhuff.obj +jdphuff.obj +jdmainct.obj & >>$(RFILE)
-	echo +jdcoefct.obj +jdpostct.obj +jddctmgr.obj & >>$(RFILE)
-	echo +jidctfst.obj +jidctflt.obj +jidctint.obj & >>$(RFILE)
-	echo +jidctred.obj +jdsample.obj +jdcolor.obj +jquant1.obj & >>$(RFILE)
-	echo +jquant2.obj +jdmerge.obj +jcomapi.obj +jutils.obj & >>$(RFILE)
-	echo +jerror.obj +jmemmgr.obj & >>$(RFILE)
-	echo $(SYSDEPMEMLIB) ; >>$(RFILE)
-
-cjpeg.exe: $(COBJECTS) libjpeg.lib
-	echo $(COBJECTS) >cjpeg.lst
-	link /STACK:4096 /EXEPACK @cjpeg.lst, cjpeg.exe, , libjpeg.lib, ;
-	del cjpeg.lst
-
-djpeg.exe: $(DOBJECTS) libjpeg.lib
-	echo $(DOBJECTS) >djpeg.lst
-	link /STACK:4096 /EXEPACK @djpeg.lst, djpeg.exe, , libjpeg.lib, ;
-	del djpeg.lst
-
-jpegtran.exe: $(TROBJECTS) libjpeg.lib
-	link /STACK:4096 /EXEPACK $(TROBJECTS), jpegtran.exe, , libjpeg.lib, ;
-
-rdjpgcom.exe: rdjpgcom.c
-	$(CC) -AS -O -W3 rdjpgcom.c
-
-# wrjpgcom needs large model so it can malloc a 64K chunk
-wrjpgcom.exe: wrjpgcom.c
-	$(CC) -AL -O -W3 wrjpgcom.c
-
-jconfig.h: jconfig.doc
-	echo You must prepare a system-dependent jconfig.h file.
-	echo Please read the installation directions in install.doc.
-	exit 1
-
-clean:
-	del *.obj
-	del libjpeg.lib
-	del cjpeg.exe
-	del djpeg.exe
-	del jpegtran.exe
-	del rdjpgcom.exe
-	del wrjpgcom.exe
-	del testout*.*
-
-test: cjpeg.exe djpeg.exe jpegtran.exe
-	del testout*.*
-	djpeg -dct int -ppm -outfile testout.ppm  testorig.jpg
-	djpeg -dct int -bmp -colors 256 -outfile testout.bmp  testorig.jpg
-	cjpeg -dct int -outfile testout.jpg  testimg.ppm
-	djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg
-	cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm
-	jpegtran -outfile testoutt.jpg testprog.jpg
-	fc /b testimg.ppm testout.ppm
-	fc /b testimg.bmp testout.bmp
-	fc /b testimg.jpg testout.jpg
-	fc /b testimg.ppm testoutp.ppm
-	fc /b testimgp.jpg testoutp.jpg
-	fc /b testorig.jpg testoutt.jpg
-
-
-jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcphuff.obj: jcphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdphuff.obj: jdphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h
-jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctred.obj: jidctred.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h
-rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h
-wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h
-cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h
-rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-jmemdosa.obj : jmemdosa.asm
-	masm /mx $*;
diff --git a/src/3rdparty/libjpeg/makefile.mms b/src/3rdparty/libjpeg/makefile.mms
deleted file mode 100644
index cf130e5b9..000000000
--- a/src/3rdparty/libjpeg/makefile.mms
+++ /dev/null
@@ -1,218 +0,0 @@
-# Makefile for Independent JPEG Group's software
-
-# This makefile is for use with MMS on Digital VMS systems.
-# Thanks to Rick Dyson (dyson@iowasp.physics.uiowa.edu)
-# and Tim Bell (tbell@netcom.com) for their help.
-
-# Read installation instructions before saying "MMS" !!
-
-# You may need to adjust these cc options:
-CFLAGS= $(CFLAGS) /NoDebug /Optimize
-# Generally, we recommend defining any configuration symbols in jconfig.h,
-# NOT via /Define switches here.
-.ifdef ALPHA
-OPT=
-.else
-OPT= ,Sys$Disk:[]MAKVMS.OPT/Option
-.endif
-
-# Put here the object file name for the correct system-dependent memory
-# manager file.  For Unix this is usually jmemnobs.o, but you may want
-# to use jmemansi.o or jmemname.o if you have limited swap space.
-SYSDEPMEM= jmemnobs.obj
-
-# End of configurable options.
-
-
-# source files: JPEG library proper
-LIBSOURCES= jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c \
-        jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c \
-        jcphuff.c jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c \
-        jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c \
-        jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c \
-        jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c \
-        jfdctint.c jidctflt.c jidctfst.c jidctint.c jidctred.c jquant1.c \
-        jquant2.c jutils.c jmemmgr.c
-# memmgr back ends: compile only one of these into a working library
-SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c
-# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom
-APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \
-        rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \
-        rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c
-SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES)
-# files included by source files
-INCLUDES= jchuff.h jdhuff.h jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h \
-        jpegint.h jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h
-# documentation, test, and support files
-DOCS= README install.doc usage.doc cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \
-        wrjpgcom.1 wizard.doc example.c libjpeg.doc structure.doc \
-        coderules.doc filelist.doc change.log
-MKFILES= configure makefile.cfg makefile.ansi makefile.unix makefile.bcc \
-        makefile.mc6 makefile.dj makefile.wat makefile.vc makelib.ds \
-        makeapps.ds makeproj.mac makcjpeg.st makdjpeg.st makljpeg.st \
-        maktjpeg.st makefile.manx makefile.sas makefile.mms makefile.vms \
-        makvms.opt
-CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
-        jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
-        jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltconfig ltmain.sh
-OTHERFILES= jconfig.doc ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm
-TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
-        testimgp.jpg
-DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \
-        $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES)
-# library object files common to compression and decompression
-COMOBJECTS= jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM)
-# compression library object files
-CLIBOBJECTS= jcapimin.obj jcapistd.obj jctrans.obj jcparam.obj jdatadst.obj \
-        jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj jcprepct.obj \
-        jccoefct.obj jccolor.obj jcsample.obj jchuff.obj jcphuff.obj \
-        jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj
-# decompression library object files
-DLIBOBJECTS= jdapimin.obj jdapistd.obj jdtrans.obj jdatasrc.obj \
-        jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdphuff.obj \
-        jdmainct.obj jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj \
-        jidctflt.obj jidctint.obj jidctred.obj jdsample.obj jdcolor.obj \
-        jquant1.obj jquant2.obj jdmerge.obj
-# These objectfiles are included in libjpeg.olb
-LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS)
-# object files for sample applications (excluding library files)
-COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \
-        rdswitch.obj cdjpeg.obj
-DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \
-        rdcolmap.obj cdjpeg.obj
-TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj
-# objectfile lists with commas --- what a crock
-COBJLIST= cjpeg.obj,rdppm.obj,rdgif.obj,rdtarga.obj,rdrle.obj,rdbmp.obj,\
-          rdswitch.obj,cdjpeg.obj
-DOBJLIST= djpeg.obj,wrppm.obj,wrgif.obj,wrtarga.obj,wrrle.obj,wrbmp.obj,\
-          rdcolmap.obj,cdjpeg.obj
-TROBJLIST= jpegtran.obj,rdswitch.obj,cdjpeg.obj,transupp.obj
-LIBOBJLIST= jcapimin.obj,jcapistd.obj,jctrans.obj,jcparam.obj,jdatadst.obj,\
-          jcinit.obj,jcmaster.obj,jcmarker.obj,jcmainct.obj,jcprepct.obj,\
-          jccoefct.obj,jccolor.obj,jcsample.obj,jchuff.obj,jcphuff.obj,\
-          jcdctmgr.obj,jfdctfst.obj,jfdctflt.obj,jfdctint.obj,jdapimin.obj,\
-          jdapistd.obj,jdtrans.obj,jdatasrc.obj,jdmaster.obj,jdinput.obj,\
-          jdmarker.obj,jdhuff.obj,jdphuff.obj,jdmainct.obj,jdcoefct.obj,\
-          jdpostct.obj,jddctmgr.obj,jidctfst.obj,jidctflt.obj,jidctint.obj,\
-          jidctred.obj,jdsample.obj,jdcolor.obj,jquant1.obj,jquant2.obj,\
-          jdmerge.obj,jcomapi.obj,jutils.obj,jerror.obj,jmemmgr.obj,$(SYSDEPMEM)
-
-
-.first
-	@- Define /NoLog Sys Sys$Library
-
-ALL : libjpeg.olb cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe
-	@ Continue
-
-libjpeg.olb : $(LIBOBJECTS)
-	Library /Create libjpeg.olb $(LIBOBJLIST)
-
-cjpeg.exe : $(COBJECTS) libjpeg.olb
-	$(LINK) $(LFLAGS) /Executable = cjpeg.exe $(COBJLIST),libjpeg.olb/Library$(OPT)
-
-djpeg.exe : $(DOBJECTS) libjpeg.olb
-	$(LINK) $(LFLAGS) /Executable = djpeg.exe $(DOBJLIST),libjpeg.olb/Library$(OPT)
-
-jpegtran.exe : $(TROBJECTS) libjpeg.olb
-	$(LINK) $(LFLAGS) /Executable = jpegtran.exe $(TROBJLIST),libjpeg.olb/Library$(OPT)
-
-rdjpgcom.exe : rdjpgcom.obj
-	$(LINK) $(LFLAGS) /Executable = rdjpgcom.exe rdjpgcom.obj$(OPT)
-
-wrjpgcom.exe : wrjpgcom.obj
-	$(LINK) $(LFLAGS) /Executable = wrjpgcom.exe wrjpgcom.obj$(OPT)
-
-jconfig.h : jconfig.vms
-	@- Copy jconfig.vms jconfig.h
-
-clean :
-	@- Set Protection = Owner:RWED *.*;-1
-	@- Set Protection = Owner:RWED *.OBJ
-	- Purge /NoLog /NoConfirm *.*
-	- Delete /NoLog /NoConfirm *.OBJ;
-
-test : cjpeg.exe djpeg.exe jpegtran.exe
-	mcr sys$disk:[]djpeg -dct int -ppm -outfile testout.ppm testorig.jpg
-	mcr sys$disk:[]djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg
-	mcr sys$disk:[]cjpeg -dct int      -outfile testout.jpg testimg.ppm
-	mcr sys$disk:[]djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg
-	mcr sys$disk:[]cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm
-	mcr sys$disk:[]jpegtran -outfile testoutt.jpg testprog.jpg
-	- Backup /Compare/Log	  testimg.ppm testout.ppm
-	- Backup /Compare/Log	  testimg.bmp testout.bmp
-	- Backup /Compare/Log	  testimg.jpg testout.jpg
-	- Backup /Compare/Log	  testimg.ppm testoutp.ppm
-	- Backup /Compare/Log	  testimgp.jpg testoutp.jpg
-	- Backup /Compare/Log	  testorig.jpg testoutt.jpg
-
-
-jcapimin.obj : jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcapistd.obj : jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccoefct.obj : jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccolor.obj : jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcdctmgr.obj : jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jchuff.obj : jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcinit.obj : jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmainct.obj : jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmarker.obj : jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmaster.obj : jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcomapi.obj : jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcparam.obj : jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcphuff.obj : jcphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcprepct.obj : jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcsample.obj : jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jctrans.obj : jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapimin.obj : jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapistd.obj : jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdatadst.obj : jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdatasrc.obj : jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdcoefct.obj : jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdcolor.obj : jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jddctmgr.obj : jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jdhuff.obj : jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdinput.obj : jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmainct.obj : jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmarker.obj : jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmaster.obj : jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmerge.obj : jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdphuff.obj : jdphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdpostct.obj : jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdsample.obj : jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdtrans.obj : jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jerror.obj : jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h
-jfdctflt.obj : jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctfst.obj : jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctint.obj : jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctflt.obj : jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctfst.obj : jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctint.obj : jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctred.obj : jidctred.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jquant1.obj : jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jquant2.obj : jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jutils.obj : jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jmemmgr.obj : jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemansi.obj : jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemname.obj : jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemnobs.obj : jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemdos.obj : jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemmac.obj : jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-cjpeg.obj : cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-djpeg.obj : djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-jpegtran.obj : jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h
-rdjpgcom.obj : rdjpgcom.c jinclude.h jconfig.h
-wrjpgcom.obj : wrjpgcom.c jinclude.h jconfig.h
-cdjpeg.obj : cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdcolmap.obj : rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdswitch.obj : rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-transupp.obj : transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h
-rdppm.obj : rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrppm.obj : wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdgif.obj : rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrgif.obj : wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdtarga.obj : rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrtarga.obj : wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdbmp.obj : rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrbmp.obj : wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdrle.obj : rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrrle.obj : wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
diff --git a/src/3rdparty/libjpeg/makefile.sas b/src/3rdparty/libjpeg/makefile.sas
deleted file mode 100644
index 7f664e278..000000000
--- a/src/3rdparty/libjpeg/makefile.sas
+++ /dev/null
@@ -1,252 +0,0 @@
-# Makefile for Independent JPEG Group's software
-
-# This makefile is for Amiga systems using SAS C 6.0 and up.
-# Thanks to Ed Hanway, Mark Rinfret, and Jim Zepeda.
-
-# Read installation instructions before saying "make" !!
-
-# The name of your C compiler:
-CC= sc
-
-# You may need to adjust these cc options:
-# Uncomment the following lines for generic 680x0 version
-ARCHFLAGS= cpu=any
-SUFFIX=
-
-# Uncomment the following lines for 68030-only version
-#ARCHFLAGS= cpu=68030
-#SUFFIX=.030
-
-CFLAGS= nostackcheck data=near parms=register optimize $(ARCHFLAGS) \
-	ignore=104 ignore=304 ignore=306
-# ignore=104 disables warnings for mismatched const qualifiers
-# ignore=304 disables warnings for variables being optimized out
-# ignore=306 disables warnings for the inlining of functions
-# Generally, we recommend defining any configuration symbols in jconfig.h,
-# NOT via define switches here.
-
-# Link-time cc options:
-LDFLAGS= SC SD ND BATCH
-
-# To link any special libraries, add the necessary commands here.
-LDLIBS= LIB:scm.lib LIB:sc.lib
-
-# Put here the object file name for the correct system-dependent memory
-# manager file.  For Amiga we recommend jmemname.o.
-SYSDEPMEM= jmemname.o
-
-# miscellaneous OS-dependent stuff
-# linker
-LN= slink
-# file deletion command
-RM= delete tquiet
-# library (.lib) file creation command
-AR= oml
-
-# End of configurable options.
-
-
-# source files: JPEG library proper
-LIBSOURCES= jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c \
-        jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c \
-        jcphuff.c jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c \
-        jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c \
-        jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c \
-        jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c \
-        jfdctint.c jidctflt.c jidctfst.c jidctint.c jidctred.c jquant1.c \
-        jquant2.c jutils.c jmemmgr.c
-# memmgr back ends: compile only one of these into a working library
-SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c
-# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom
-APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \
-        rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \
-        rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c
-SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES)
-# files included by source files
-INCLUDES= jchuff.h jdhuff.h jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h \
-        jpegint.h jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h
-# documentation, test, and support files
-DOCS= README install.doc usage.doc cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \
-        wrjpgcom.1 wizard.doc example.c libjpeg.doc structure.doc \
-        coderules.doc filelist.doc change.log
-MKFILES= configure makefile.cfg makefile.ansi makefile.unix makefile.bcc \
-        makefile.mc6 makefile.dj makefile.wat makefile.vc makelib.ds \
-        makeapps.ds makeproj.mac makcjpeg.st makdjpeg.st makljpeg.st \
-        maktjpeg.st makefile.manx makefile.sas makefile.mms makefile.vms \
-        makvms.opt
-CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
-        jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
-        jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltconfig ltmain.sh
-OTHERFILES= jconfig.doc ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm
-TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
-        testimgp.jpg
-DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \
-        $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES)
-# library object files common to compression and decompression
-COMOBJECTS= jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM)
-# compression library object files
-CLIBOBJECTS= jcapimin.o jcapistd.o jctrans.o jcparam.o jdatadst.o jcinit.o \
-        jcmaster.o jcmarker.o jcmainct.o jcprepct.o jccoefct.o jccolor.o \
-        jcsample.o jchuff.o jcphuff.o jcdctmgr.o jfdctfst.o jfdctflt.o \
-        jfdctint.o
-# decompression library object files
-DLIBOBJECTS= jdapimin.o jdapistd.o jdtrans.o jdatasrc.o jdmaster.o \
-        jdinput.o jdmarker.o jdhuff.o jdphuff.o jdmainct.o jdcoefct.o \
-        jdpostct.o jddctmgr.o jidctfst.o jidctflt.o jidctint.o jidctred.o \
-        jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o
-# These objectfiles are included in libjpeg.lib
-LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS)
-# object files for sample applications (excluding library files)
-COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \
-        cdjpeg.o
-DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \
-        cdjpeg.o
-TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o
-
-
-all: libjpeg.lib cjpeg$(SUFFIX) djpeg$(SUFFIX) jpegtran$(SUFFIX) rdjpgcom$(SUFFIX) wrjpgcom$(SUFFIX)
-
-# note: do several AR steps to avoid command line length limitations
-
-libjpeg.lib: $(LIBOBJECTS)
-	-$(RM) libjpeg.lib
-	$(AR) libjpeg.lib r $(CLIBOBJECTS)
-	$(AR) libjpeg.lib r $(DLIBOBJECTS)
-	$(AR) libjpeg.lib r $(COMOBJECTS)
-
-cjpeg$(SUFFIX): $(COBJECTS) libjpeg.lib
-	$(LN) <WITH <
-$(LDFLAGS)
-TO cjpeg$(SUFFIX)
-FROM LIB:c.o $(COBJECTS)
-LIB libjpeg.lib $(LDLIBS)
-<
-
-djpeg$(SUFFIX): $(DOBJECTS) libjpeg.lib
-	$(LN) <WITH <
-$(LDFLAGS)
-TO djpeg$(SUFFIX)
-FROM LIB:c.o $(DOBJECTS)
-LIB libjpeg.lib $(LDLIBS)
-<
-
-jpegtran$(SUFFIX): $(TROBJECTS) libjpeg.lib
-	$(LN) <WITH <
-$(LDFLAGS)
-TO jpegtran$(SUFFIX)
-FROM LIB:c.o $(TROBJECTS)
-LIB libjpeg.lib $(LDLIBS)
-<
-
-rdjpgcom$(SUFFIX): rdjpgcom.o
-	$(LN) <WITH <
-$(LDFLAGS)
-TO rdjpgcom$(SUFFIX)
-FROM LIB:c.o rdjpgcom.o
-LIB $(LDLIBS)
-<
-
-wrjpgcom$(SUFFIX): wrjpgcom.o
-	$(LN) <WITH <
-$(LDFLAGS)
-TO wrjpgcom$(SUFFIX)
-FROM LIB:c.o wrjpgcom.o
-LIB $(LDLIBS)
-<
-
-jconfig.h: jconfig.doc
-	echo You must prepare a system-dependent jconfig.h file.
-	echo Please read the installation directions in install.doc.
-	exit 1
-
-clean:
-	-$(RM) *.o cjpeg djpeg jpegtran cjpeg.030 djpeg.030 jpegtran.030
-	-$(RM) rdjpgcom wrjpgcom rdjpgcom.030 wrjpgcom.030
-	-$(RM) libjpeg.lib core testout*.*
-
-test: cjpeg djpeg jpegtran
-	-$(RM) testout*.*
-	djpeg -dct int -ppm -outfile testout.ppm  testorig.jpg
-	djpeg -dct int -bmp -colors 256 -outfile testout.bmp  testorig.jpg
-	cjpeg -dct int -outfile testout.jpg  testimg.ppm
-	djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg
-	cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm
-	jpegtran -outfile testoutt.jpg testprog.jpg
-	cmp testimg.ppm testout.ppm
-	cmp testimg.bmp testout.bmp
-	cmp testimg.jpg testout.jpg
-	cmp testimg.ppm testoutp.ppm
-	cmp testimgp.jpg testoutp.jpg
-	cmp testorig.jpg testoutt.jpg
-
-
-jcapimin.o: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcapistd.o: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccoefct.o: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccolor.o: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcdctmgr.o: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jchuff.o: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcinit.o: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmainct.o: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmarker.o: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmaster.o: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcomapi.o: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcparam.o: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcphuff.o: jcphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcprepct.o: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcsample.o: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jctrans.o: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapimin.o: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapistd.o: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdatadst.o: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdatasrc.o: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdcoefct.o: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdcolor.o: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jddctmgr.o: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jdhuff.o: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdinput.o: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmainct.o: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmarker.o: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmaster.o: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmerge.o: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdphuff.o: jdphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdpostct.o: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdsample.o: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdtrans.o: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jerror.o: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h
-jfdctflt.o: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctfst.o: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctint.o: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctflt.o: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctfst.o: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctint.o: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctred.o: jidctred.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jquant1.o: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jquant2.o: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jutils.o: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jmemmgr.o: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemansi.o: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemname.o: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemnobs.o: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemdos.o: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemmac.o: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-cjpeg.o: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-djpeg.o: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-jpegtran.o: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h
-rdjpgcom.o: rdjpgcom.c jinclude.h jconfig.h
-wrjpgcom.o: wrjpgcom.c jinclude.h jconfig.h
-cdjpeg.o: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdcolmap.o: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdswitch.o: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-transupp.o: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h
-rdppm.o: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrppm.o: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdgif.o: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrgif.o: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdtarga.o: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrtarga.o: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdbmp.o: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrbmp.o: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdrle.o: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrrle.o: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
diff --git a/src/3rdparty/libjpeg/makefile.unix b/src/3rdparty/libjpeg/makefile.unix
deleted file mode 100644
index 00455ab6a..000000000
--- a/src/3rdparty/libjpeg/makefile.unix
+++ /dev/null
@@ -1,228 +0,0 @@
-# Makefile for Independent JPEG Group's software
-
-# This makefile is suitable for Unix-like systems with non-ANSI compilers.
-# If you have an ANSI compiler, makefile.ansi is a better starting point.
-
-# Read installation instructions before saying "make" !!
-
-# The name of your C compiler:
-CC= cc
-
-# You may need to adjust these cc options:
-CFLAGS= -O
-# Generally, we recommend defining any configuration symbols in jconfig.h,
-# NOT via -D switches here.
-# However, any special defines for ansi2knr.c may be included here:
-ANSI2KNRFLAGS= 
-
-# Link-time cc options:
-LDFLAGS= 
-
-# To link any special libraries, add the necessary -l commands here.
-LDLIBS= 
-
-# Put here the object file name for the correct system-dependent memory
-# manager file.  For Unix this is usually jmemnobs.o, but you may want
-# to use jmemansi.o or jmemname.o if you have limited swap space.
-SYSDEPMEM= jmemnobs.o
-
-# miscellaneous OS-dependent stuff
-# linker
-LN= $(CC)
-# file deletion command
-RM= rm -f
-# file rename command
-MV= mv
-# library (.a) file creation command
-AR= ar rc
-# second step in .a creation (use "touch" if not needed)
-AR2= ranlib
-
-# End of configurable options.
-
-
-# source files: JPEG library proper
-LIBSOURCES= jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c \
-        jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c \
-        jcphuff.c jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c \
-        jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c \
-        jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c \
-        jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c \
-        jfdctint.c jidctflt.c jidctfst.c jidctint.c jidctred.c jquant1.c \
-        jquant2.c jutils.c jmemmgr.c
-# memmgr back ends: compile only one of these into a working library
-SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c
-# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom
-APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \
-        rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \
-        rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c
-SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES)
-# files included by source files
-INCLUDES= jchuff.h jdhuff.h jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h \
-        jpegint.h jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h
-# documentation, test, and support files
-DOCS= README install.doc usage.doc cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \
-        wrjpgcom.1 wizard.doc example.c libjpeg.doc structure.doc \
-        coderules.doc filelist.doc change.log
-MKFILES= configure makefile.cfg makefile.ansi makefile.unix makefile.bcc \
-        makefile.mc6 makefile.dj makefile.wat makefile.vc makelib.ds \
-        makeapps.ds makeproj.mac makcjpeg.st makdjpeg.st makljpeg.st \
-        maktjpeg.st makefile.manx makefile.sas makefile.mms makefile.vms \
-        makvms.opt
-CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
-        jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
-        jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltconfig ltmain.sh
-OTHERFILES= jconfig.doc ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm
-TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
-        testimgp.jpg
-DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \
-        $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES)
-# library object files common to compression and decompression
-COMOBJECTS= jcomapi.o jutils.o jerror.o jmemmgr.o $(SYSDEPMEM)
-# compression library object files
-CLIBOBJECTS= jcapimin.o jcapistd.o jctrans.o jcparam.o jdatadst.o jcinit.o \
-        jcmaster.o jcmarker.o jcmainct.o jcprepct.o jccoefct.o jccolor.o \
-        jcsample.o jchuff.o jcphuff.o jcdctmgr.o jfdctfst.o jfdctflt.o \
-        jfdctint.o
-# decompression library object files
-DLIBOBJECTS= jdapimin.o jdapistd.o jdtrans.o jdatasrc.o jdmaster.o \
-        jdinput.o jdmarker.o jdhuff.o jdphuff.o jdmainct.o jdcoefct.o \
-        jdpostct.o jddctmgr.o jidctfst.o jidctflt.o jidctint.o jidctred.o \
-        jdsample.o jdcolor.o jquant1.o jquant2.o jdmerge.o
-# These objectfiles are included in libjpeg.a
-LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS)
-# object files for sample applications (excluding library files)
-COBJECTS= cjpeg.o rdppm.o rdgif.o rdtarga.o rdrle.o rdbmp.o rdswitch.o \
-        cdjpeg.o
-DOBJECTS= djpeg.o wrppm.o wrgif.o wrtarga.o wrrle.o wrbmp.o rdcolmap.o \
-        cdjpeg.o
-TROBJECTS= jpegtran.o rdswitch.o cdjpeg.o transupp.o
-
-
-all: ansi2knr libjpeg.a cjpeg djpeg jpegtran rdjpgcom wrjpgcom
-
-# This rule causes ansi2knr to be invoked.
-.c.o:
-	./ansi2knr $*.c T$*.c
-	$(CC) $(CFLAGS) -c T$*.c
-	$(RM) T$*.c $*.o
-	$(MV) T$*.o $*.o
-
-ansi2knr: ansi2knr.c
-	$(CC) $(CFLAGS) $(ANSI2KNRFLAGS) -o ansi2knr ansi2knr.c
-
-libjpeg.a: ansi2knr $(LIBOBJECTS)
-	$(RM) libjpeg.a
-	$(AR) libjpeg.a  $(LIBOBJECTS)
-	$(AR2) libjpeg.a
-
-cjpeg: ansi2knr $(COBJECTS) libjpeg.a
-	$(LN) $(LDFLAGS) -o cjpeg $(COBJECTS) libjpeg.a $(LDLIBS)
-
-djpeg: ansi2knr $(DOBJECTS) libjpeg.a
-	$(LN) $(LDFLAGS) -o djpeg $(DOBJECTS) libjpeg.a $(LDLIBS)
-
-jpegtran: ansi2knr $(TROBJECTS) libjpeg.a
-	$(LN) $(LDFLAGS) -o jpegtran $(TROBJECTS) libjpeg.a $(LDLIBS)
-
-rdjpgcom: rdjpgcom.o
-	$(LN) $(LDFLAGS) -o rdjpgcom rdjpgcom.o $(LDLIBS)
-
-wrjpgcom: wrjpgcom.o
-	$(LN) $(LDFLAGS) -o wrjpgcom wrjpgcom.o $(LDLIBS)
-
-jconfig.h: jconfig.doc
-	echo You must prepare a system-dependent jconfig.h file.
-	echo Please read the installation directions in install.doc.
-	exit 1
-
-clean:
-	$(RM) *.o cjpeg djpeg jpegtran libjpeg.a rdjpgcom wrjpgcom
-	$(RM) ansi2knr core testout*
-
-test: cjpeg djpeg jpegtran
-	$(RM) testout*
-	./djpeg -dct int -ppm -outfile testout.ppm  testorig.jpg
-	./djpeg -dct int -bmp -colors 256 -outfile testout.bmp  testorig.jpg
-	./cjpeg -dct int -outfile testout.jpg  testimg.ppm
-	./djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg
-	./cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm
-	./jpegtran -outfile testoutt.jpg testprog.jpg
-	cmp testimg.ppm testout.ppm
-	cmp testimg.bmp testout.bmp
-	cmp testimg.jpg testout.jpg
-	cmp testimg.ppm testoutp.ppm
-	cmp testimgp.jpg testoutp.jpg
-	cmp testorig.jpg testoutt.jpg
-
-
-jcapimin.o: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcapistd.o: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccoefct.o: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccolor.o: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcdctmgr.o: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jchuff.o: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcinit.o: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmainct.o: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmarker.o: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmaster.o: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcomapi.o: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcparam.o: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcphuff.o: jcphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcprepct.o: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcsample.o: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jctrans.o: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapimin.o: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapistd.o: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdatadst.o: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdatasrc.o: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdcoefct.o: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdcolor.o: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jddctmgr.o: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jdhuff.o: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdinput.o: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmainct.o: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmarker.o: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmaster.o: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmerge.o: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdphuff.o: jdphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdpostct.o: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdsample.o: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdtrans.o: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jerror.o: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h
-jfdctflt.o: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctfst.o: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctint.o: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctflt.o: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctfst.o: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctint.o: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctred.o: jidctred.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jquant1.o: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jquant2.o: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jutils.o: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jmemmgr.o: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemansi.o: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemname.o: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemnobs.o: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemdos.o: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemmac.o: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-cjpeg.o: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-djpeg.o: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-jpegtran.o: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h
-rdjpgcom.o: rdjpgcom.c jinclude.h jconfig.h
-wrjpgcom.o: wrjpgcom.c jinclude.h jconfig.h
-cdjpeg.o: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdcolmap.o: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdswitch.o: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-transupp.o: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h
-rdppm.o: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrppm.o: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdgif.o: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrgif.o: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdtarga.o: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrtarga.o: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdbmp.o: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrbmp.o: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdrle.o: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrrle.o: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
diff --git a/src/3rdparty/libjpeg/makefile.vc b/src/3rdparty/libjpeg/makefile.vc
deleted file mode 100644
index 16281fddf..000000000
--- a/src/3rdparty/libjpeg/makefile.vc
+++ /dev/null
@@ -1,210 +0,0 @@
-# Makefile for Independent JPEG Group's software
-
-# This makefile is for Microsoft Visual C++ on Windows NT (and 95?).
-# It builds the IJG library as a statically linkable library (.LIB),
-# and builds the sample applications as console-mode apps.
-# Thanks to Xingong Chang, Raymond Everly and others.
-
-# Read installation instructions before saying "nmake" !!
-# To build an optimized library without debug info, say "nmake nodebug=1".
-
-# Pull in standard variable definitions
-!include <win32.mak>
-
-# You may want to adjust these compiler options:
-CFLAGS= $(cflags) $(cdebug) $(cvars) -I.
-# Generally, we recommend defining any configuration symbols in jconfig.h,
-# NOT via -D switches here.
-
-# Link-time options:
-LDFLAGS= $(ldebug) $(conlflags)
-
-# To link any special libraries, add the necessary commands here.
-LDLIBS= $(conlibs)
-
-# Put here the object file name for the correct system-dependent memory
-# manager file.  For NT we suggest jmemnobs.obj, which expects the OS to
-# provide adequate virtual memory.
-SYSDEPMEM= jmemnobs.obj
-
-# miscellaneous OS-dependent stuff
-# file deletion command
-RM= del
-
-# End of configurable options.
-
-
-# source files: JPEG library proper
-LIBSOURCES= jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c \
-        jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c \
-        jcphuff.c jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c \
-        jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c \
-        jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c \
-        jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c \
-        jfdctint.c jidctflt.c jidctfst.c jidctint.c jidctred.c jquant1.c \
-        jquant2.c jutils.c jmemmgr.c
-# memmgr back ends: compile only one of these into a working library
-SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c
-# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom
-APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c \
-        rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c \
-        rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c
-SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES)
-# files included by source files
-INCLUDES= jchuff.h jdhuff.h jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h \
-        jpegint.h jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h
-# documentation, test, and support files
-DOCS= README install.doc usage.doc cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 \
-        wrjpgcom.1 wizard.doc example.c libjpeg.doc structure.doc \
-        coderules.doc filelist.doc change.log
-MKFILES= configure makefile.cfg makefile.ansi makefile.unix makefile.bcc \
-        makefile.mc6 makefile.dj makefile.wat makefile.vc makelib.ds \
-        makeapps.ds makeproj.mac makcjpeg.st makdjpeg.st makljpeg.st \
-        maktjpeg.st makefile.manx makefile.sas makefile.mms makefile.vms \
-        makvms.opt
-CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
-        jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas \
-        jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltconfig ltmain.sh
-OTHERFILES= jconfig.doc ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm
-TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
-        testimgp.jpg
-DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) \
-        $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES)
-# library object files common to compression and decompression
-COMOBJECTS= jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM)
-# compression library object files
-CLIBOBJECTS= jcapimin.obj jcapistd.obj jctrans.obj jcparam.obj jdatadst.obj \
-        jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj jcprepct.obj \
-        jccoefct.obj jccolor.obj jcsample.obj jchuff.obj jcphuff.obj \
-        jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj
-# decompression library object files
-DLIBOBJECTS= jdapimin.obj jdapistd.obj jdtrans.obj jdatasrc.obj \
-        jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdphuff.obj \
-        jdmainct.obj jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj \
-        jidctflt.obj jidctint.obj jidctred.obj jdsample.obj jdcolor.obj \
-        jquant1.obj jquant2.obj jdmerge.obj
-# These objectfiles are included in libjpeg.lib
-LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS)
-# object files for sample applications (excluding library files)
-COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj \
-        rdswitch.obj cdjpeg.obj
-DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj \
-        rdcolmap.obj cdjpeg.obj
-TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj
-
-# Template command for compiling .c to .obj
-.c.obj:
-	$(cc) $(CFLAGS) $*.c
-
-
-all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe
-
-libjpeg.lib: $(LIBOBJECTS)
-	lib -out:libjpeg.lib  $(LIBOBJECTS)
-
-cjpeg.exe: $(COBJECTS) libjpeg.lib
-	$(link) $(LDFLAGS) -out:cjpeg.exe $(COBJECTS) libjpeg.lib $(LDLIBS)
-
-djpeg.exe: $(DOBJECTS) libjpeg.lib
-	$(link) $(LDFLAGS) -out:djpeg.exe $(DOBJECTS) libjpeg.lib $(LDLIBS)
-
-jpegtran.exe: $(TROBJECTS) libjpeg.lib
-	$(link) $(LDFLAGS) -out:jpegtran.exe $(TROBJECTS) libjpeg.lib $(LDLIBS)
-
-rdjpgcom.exe: rdjpgcom.obj
-	$(link) $(LDFLAGS) -out:rdjpgcom.exe rdjpgcom.obj $(LDLIBS)
-
-wrjpgcom.exe: wrjpgcom.obj
-	$(link) $(LDFLAGS) -out:wrjpgcom.exe wrjpgcom.obj $(LDLIBS)
-
-
-clean:
-	$(RM) *.obj *.exe libjpeg.lib
-	$(RM) testout*
-
-test: cjpeg.exe djpeg.exe jpegtran.exe
-	$(RM) testout*
-	.\djpeg -dct int -ppm -outfile testout.ppm  testorig.jpg
-	.\djpeg -dct int -bmp -colors 256 -outfile testout.bmp  testorig.jpg
-	.\cjpeg -dct int -outfile testout.jpg  testimg.ppm
-	.\djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg
-	.\cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm
-	.\jpegtran -outfile testoutt.jpg testprog.jpg
-	fc /b testimg.ppm testout.ppm
-	fc /b testimg.bmp testout.bmp
-	fc /b testimg.jpg testout.jpg
-	fc /b testimg.ppm testoutp.ppm
-	fc /b testimgp.jpg testoutp.jpg
-	fc /b testorig.jpg testoutt.jpg
-
-
-jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcphuff.obj: jcphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdphuff.obj: jdphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h
-jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctred.obj: jidctred.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h
-rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h
-wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h
-cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h
-rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
diff --git a/src/3rdparty/libjpeg/makefile.vms b/src/3rdparty/libjpeg/makefile.vms
deleted file mode 100644
index a42358d05..000000000
--- a/src/3rdparty/libjpeg/makefile.vms
+++ /dev/null
@@ -1,142 +0,0 @@
-$! Makefile for Independent JPEG Group's software
-$!
-$! This is a command procedure for Digital VMS systems that do not have MMS.
-$! It builds the JPEG software by brute force, recompiling everything whether
-$! or not it is necessary.  It then runs the basic self-test.
-$! Thanks to Rick Dyson (dyson@iowasp.physics.uiowa.edu)
-$! and Tim Bell (tbell@netcom.com) for their help.
-$!
-$! Read installation instructions before running this!!
-$!
-$ If F$Mode () .eqs. "INTERACTIVE"
-$   Then
-$       VERIFY = F$Verify (0)
-$   Else
-$       VERIFY = F$Verify (1)
-$ EndIf
-$ On Control_Y Then GoTo End
-$ On Error     Then GoTo End
-$
-$ If F$GetSyi ("HW_MODEL") .gt. 1023 
-$   Then
-$       OPT = ""
-$   Else
-$       OPT = ",Sys$Disk:[]makvms.opt/Option"
-$ EndIf
-$ 
-$ DoCompile := CC /NoDebug /Optimize /NoList
-$!
-$ DoCompile jcapimin.c
-$ DoCompile jcapistd.c
-$ DoCompile jctrans.c
-$ DoCompile jcparam.c
-$ DoCompile jdatadst.c
-$ DoCompile jcinit.c
-$ DoCompile jcmaster.c
-$ DoCompile jcmarker.c
-$ DoCompile jcmainct.c
-$ DoCompile jcprepct.c
-$ DoCompile jccoefct.c
-$ DoCompile jccolor.c
-$ DoCompile jcsample.c
-$ DoCompile jchuff.c
-$ DoCompile jcphuff.c
-$ DoCompile jcdctmgr.c
-$ DoCompile jfdctfst.c
-$ DoCompile jfdctflt.c
-$ DoCompile jfdctint.c
-$ DoCompile jdapimin.c
-$ DoCompile jdapistd.c
-$ DoCompile jdtrans.c
-$ DoCompile jdatasrc.c
-$ DoCompile jdmaster.c
-$ DoCompile jdinput.c
-$ DoCompile jdmarker.c
-$ DoCompile jdhuff.c
-$ DoCompile jdphuff.c
-$ DoCompile jdmainct.c
-$ DoCompile jdcoefct.c
-$ DoCompile jdpostct.c
-$ DoCompile jddctmgr.c
-$ DoCompile jidctfst.c
-$ DoCompile jidctflt.c
-$ DoCompile jidctint.c
-$ DoCompile jidctred.c
-$ DoCompile jdsample.c
-$ DoCompile jdcolor.c
-$ DoCompile jquant1.c
-$ DoCompile jquant2.c
-$ DoCompile jdmerge.c
-$ DoCompile jcomapi.c
-$ DoCompile jutils.c
-$ DoCompile jerror.c
-$ DoCompile jmemmgr.c
-$ DoCompile jmemnobs.c
-$!
-$ Library /Create libjpeg.olb  jcapimin.obj,jcapistd.obj,jctrans.obj, -
-          jcparam.obj,jdatadst.obj,jcinit.obj,jcmaster.obj,jcmarker.obj, -
-          jcmainct.obj,jcprepct.obj,jccoefct.obj,jccolor.obj,jcsample.obj, -
-          jchuff.obj,jcphuff.obj,jcdctmgr.obj,jfdctfst.obj,jfdctflt.obj, -
-          jfdctint.obj,jdapimin.obj,jdapistd.obj,jdtrans.obj,jdatasrc.obj, -
-          jdmaster.obj,jdinput.obj,jdmarker.obj,jdhuff.obj,jdphuff.obj, -
-          jdmainct.obj,jdcoefct.obj,jdpostct.obj,jddctmgr.obj,jidctfst.obj, -
-          jidctflt.obj,jidctint.obj,jidctred.obj,jdsample.obj,jdcolor.obj, -
-          jquant1.obj,jquant2.obj,jdmerge.obj,jcomapi.obj,jutils.obj, -
-          jerror.obj,jmemmgr.obj,jmemnobs.obj
-$!
-$ DoCompile cjpeg.c
-$ DoCompile rdppm.c
-$ DoCompile rdgif.c
-$ DoCompile rdtarga.c
-$ DoCompile rdrle.c
-$ DoCompile rdbmp.c
-$ DoCompile rdswitch.c
-$ DoCompile cdjpeg.c
-$!
-$ Link /NoMap /Executable = cjpeg.exe  cjpeg.obj,rdppm.obj,rdgif.obj, -
-          rdtarga.obj,rdrle.obj,rdbmp.obj,rdswitch.obj,cdjpeg.obj,libjpeg.olb/Library'OPT'
-$!
-$ DoCompile djpeg.c
-$ DoCompile wrppm.c
-$ DoCompile wrgif.c
-$ DoCompile wrtarga.c
-$ DoCompile wrrle.c
-$ DoCompile wrbmp.c
-$ DoCompile rdcolmap.c
-$ DoCompile cdjpeg.c
-$!
-$ Link /NoMap /Executable = djpeg.exe  djpeg.obj,wrppm.obj,wrgif.obj, -
-          wrtarga.obj,wrrle.obj,wrbmp.obj,rdcolmap.obj,cdjpeg.obj,libjpeg.olb/Library'OPT'
-$!
-$ DoCompile jpegtran.c
-$ DoCompile rdswitch.c
-$ DoCompile cdjpeg.c
-$ DoCompile transupp.c
-$!
-$ Link /NoMap /Executable = jpegtran.exe  jpegtran.obj,rdswitch.obj, -
-          cdjpeg.obj,transupp.obj,libjpeg.olb/Library'OPT'
-$!
-$ DoCompile rdjpgcom.c
-$ Link /NoMap /Executable = rdjpgcom.exe  rdjpgcom.obj'OPT'
-$!
-$ DoCompile wrjpgcom.c
-$ Link /NoMap /Executable = wrjpgcom.exe  wrjpgcom.obj'OPT'
-$!
-$! Run the self-test
-$!
-$ mcr sys$disk:[]djpeg -dct int -ppm -outfile testout.ppm testorig.jpg
-$ mcr sys$disk:[]djpeg -dct int -bmp -colors 256 -outfile testout.bmp testorig.jpg
-$ mcr sys$disk:[]cjpeg -dct int      -outfile testout.jpg testimg.ppm
-$ mcr sys$disk:[]djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg
-$ mcr sys$disk:[]cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm
-$ mcr sys$disk:[]jpegtran -outfile testoutt.jpg testprog.jpg
-$ Backup /Compare/Log testimg.ppm testout.ppm
-$ Backup /Compare/Log testimg.bmp testout.bmp
-$ Backup /Compare/Log testimg.jpg testout.jpg
-$ Backup /Compare/Log testimg.ppm testoutp.ppm
-$ Backup /Compare/Log testimgp.jpg testoutp.jpg
-$ Backup /Compare/Log testorig.jpg testoutt.jpg
-$!
-$End:
-$   If Verify Then Set Verify
-$ Exit
diff --git a/src/3rdparty/libjpeg/makefile.wat b/src/3rdparty/libjpeg/makefile.wat
deleted file mode 100644
index d953e466f..000000000
--- a/src/3rdparty/libjpeg/makefile.wat
+++ /dev/null
@@ -1,233 +0,0 @@
-# Makefile for Independent JPEG Group's software
-
-# This makefile is suitable for Watcom C/C++ 10.0 on MS-DOS (using
-# dos4g extender), OS/2, and Windows NT console mode.
-# Thanks to Janos Haide, jhaide@btrvtech.com.
-
-# Read installation instructions before saying "wmake" !!
-
-# Uncomment line for desired system
-SYSTEM=DOS
-#SYSTEM=OS2
-#SYSTEM=NT
-
-# The name of your C compiler:
-CC= wcl386
-
-# You may need to adjust these cc options:
-CFLAGS= -4r -ort -wx -zq -bt=$(SYSTEM)
-# Caution: avoid -ol or -ox; these generate bad code with 10.0 or 10.0a.
-# Generally, we recommend defining any configuration symbols in jconfig.h,
-# NOT via -D switches here.
-
-# Link-time cc options:
-!ifeq SYSTEM DOS
-LDFLAGS= -zq -l=dos4g
-!else ifeq SYSTEM OS2
-LDFLAGS= -zq -l=os2v2
-!else ifeq SYSTEM NT
-LDFLAGS= -zq -l=nt
-!endif
-
-# Put here the object file name for the correct system-dependent memory
-# manager file.  jmemnobs should work fine for dos4g or OS/2 environment.
-SYSDEPMEM= jmemnobs.obj
-
-# End of configurable options.
-
-
-# source files: JPEG library proper
-LIBSOURCES= jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c &
-        jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c &
-        jcphuff.c jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c &
-        jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c &
-        jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c &
-        jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c &
-        jfdctint.c jidctflt.c jidctfst.c jidctint.c jidctred.c jquant1.c &
-        jquant2.c jutils.c jmemmgr.c
-# memmgr back ends: compile only one of these into a working library
-SYSDEPSOURCES= jmemansi.c jmemname.c jmemnobs.c jmemdos.c jmemmac.c
-# source files: cjpeg/djpeg/jpegtran applications, also rdjpgcom/wrjpgcom
-APPSOURCES= cjpeg.c djpeg.c jpegtran.c rdjpgcom.c wrjpgcom.c cdjpeg.c &
-        rdcolmap.c rdswitch.c transupp.c rdppm.c wrppm.c rdgif.c wrgif.c &
-        rdtarga.c wrtarga.c rdbmp.c wrbmp.c rdrle.c wrrle.c
-SOURCES= $(LIBSOURCES) $(SYSDEPSOURCES) $(APPSOURCES)
-# files included by source files
-INCLUDES= jchuff.h jdhuff.h jdct.h jerror.h jinclude.h jmemsys.h jmorecfg.h &
-        jpegint.h jpeglib.h jversion.h cdjpeg.h cderror.h transupp.h
-# documentation, test, and support files
-DOCS= README install.doc usage.doc cjpeg.1 djpeg.1 jpegtran.1 rdjpgcom.1 &
-        wrjpgcom.1 wizard.doc example.c libjpeg.doc structure.doc &
-        coderules.doc filelist.doc change.log
-MKFILES= configure makefile.cfg makefile.ansi makefile.unix makefile.bcc &
-        makefile.mc6 makefile.dj makefile.wat makefile.vc makelib.ds &
-        makeapps.ds makeproj.mac makcjpeg.st makdjpeg.st makljpeg.st &
-        maktjpeg.st makefile.manx makefile.sas makefile.mms makefile.vms &
-        makvms.opt
-CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat &
-        jconfig.vc jconfig.mac jconfig.st jconfig.manx jconfig.sas &
-        jconfig.vms
-CONFIGUREFILES= config.guess config.sub install-sh ltconfig ltmain.sh
-OTHERFILES= jconfig.doc ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm
-TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg &
-        testimgp.jpg
-DISTFILES= $(DOCS) $(MKFILES) $(CONFIGFILES) $(SOURCES) $(INCLUDES) &
-        $(CONFIGUREFILES) $(OTHERFILES) $(TESTFILES)
-# library object files common to compression and decompression
-COMOBJECTS= jcomapi.obj jutils.obj jerror.obj jmemmgr.obj $(SYSDEPMEM)
-# compression library object files
-CLIBOBJECTS= jcapimin.obj jcapistd.obj jctrans.obj jcparam.obj jdatadst.obj &
-        jcinit.obj jcmaster.obj jcmarker.obj jcmainct.obj jcprepct.obj &
-        jccoefct.obj jccolor.obj jcsample.obj jchuff.obj jcphuff.obj &
-        jcdctmgr.obj jfdctfst.obj jfdctflt.obj jfdctint.obj
-# decompression library object files
-DLIBOBJECTS= jdapimin.obj jdapistd.obj jdtrans.obj jdatasrc.obj &
-        jdmaster.obj jdinput.obj jdmarker.obj jdhuff.obj jdphuff.obj &
-        jdmainct.obj jdcoefct.obj jdpostct.obj jddctmgr.obj jidctfst.obj &
-        jidctflt.obj jidctint.obj jidctred.obj jdsample.obj jdcolor.obj &
-        jquant1.obj jquant2.obj jdmerge.obj
-# These objectfiles are included in libjpeg.lib
-LIBOBJECTS= $(CLIBOBJECTS) $(DLIBOBJECTS) $(COMOBJECTS)
-# object files for sample applications (excluding library files)
-COBJECTS= cjpeg.obj rdppm.obj rdgif.obj rdtarga.obj rdrle.obj rdbmp.obj &
-        rdswitch.obj cdjpeg.obj
-DOBJECTS= djpeg.obj wrppm.obj wrgif.obj wrtarga.obj wrrle.obj wrbmp.obj &
-        rdcolmap.obj cdjpeg.obj
-TROBJECTS= jpegtran.obj rdswitch.obj cdjpeg.obj transupp.obj
-
-
-all: libjpeg.lib cjpeg.exe djpeg.exe jpegtran.exe rdjpgcom.exe wrjpgcom.exe
-
-libjpeg.lib: $(LIBOBJECTS)
-	- del libjpeg.lib
-	* wlib -n libjpeg.lib $(LIBOBJECTS)
-
-cjpeg.exe: $(COBJECTS) libjpeg.lib
-	$(CC) $(LDFLAGS) $(COBJECTS) libjpeg.lib
-
-djpeg.exe: $(DOBJECTS) libjpeg.lib
-	$(CC) $(LDFLAGS) $(DOBJECTS) libjpeg.lib
-
-jpegtran.exe: $(TROBJECTS) libjpeg.lib
-	$(CC) $(LDFLAGS) $(TROBJECTS) libjpeg.lib
-
-rdjpgcom.exe: rdjpgcom.c
-	$(CC) $(CFLAGS) $(LDFLAGS) rdjpgcom.c
-
-wrjpgcom.exe: wrjpgcom.c
-	$(CC) $(CFLAGS) $(LDFLAGS) wrjpgcom.c
-
-.c.obj:
-	$(CC) $(CFLAGS) -c $<
-
-jconfig.h: jconfig.doc
-	echo You must prepare a system-dependent jconfig.h file.
-	echo Please read the installation directions in install.doc.
-	exit 1
-
-clean: .SYMBOLIC
-	- del *.obj
-	- del libjpeg.lib
-	- del cjpeg.exe
-	- del djpeg.exe
-	- del jpegtran.exe
-	- del rdjpgcom.exe
-	- del wrjpgcom.exe
-	- del testout*.*
-
-test: cjpeg.exe djpeg.exe jpegtran.exe  .SYMBOLIC
-	- del testout*.*
-	djpeg -dct int -ppm -outfile testout.ppm  testorig.jpg
-	djpeg -dct int -bmp -colors 256 -outfile testout.bmp  testorig.jpg
-	cjpeg -dct int -outfile testout.jpg  testimg.ppm
-	djpeg -dct int -ppm -outfile testoutp.ppm testprog.jpg
-	cjpeg -dct int -progressive -opt -outfile testoutp.jpg testimg.ppm
-	jpegtran -outfile testoutt.jpg testprog.jpg
-!ifeq SYSTEM DOS
-	fc /b testimg.ppm testout.ppm
-	fc /b testimg.bmp testout.bmp
-	fc /b testimg.jpg testout.jpg
-	fc /b testimg.ppm testoutp.ppm
-	fc /b testimgp.jpg testoutp.jpg
-	fc /b testorig.jpg testoutt.jpg
-!else
-	echo n > n.tmp
-	comp testimg.ppm testout.ppm < n.tmp
-	comp testimg.bmp testout.bmp < n.tmp
-	comp testimg.jpg testout.jpg < n.tmp
-	comp testimg.ppm testoutp.ppm < n.tmp
-	comp testimgp.jpg testoutp.jpg < n.tmp
-	comp testorig.jpg testoutt.jpg < n.tmp
-	del n.tmp
-!endif
-
-
-jcapimin.obj: jcapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcapistd.obj: jcapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccoefct.obj: jccoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jccolor.obj: jccolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcdctmgr.obj: jcdctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jchuff.obj: jchuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcinit.obj: jcinit.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmainct.obj: jcmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmarker.obj: jcmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcmaster.obj: jcmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcomapi.obj: jcomapi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcparam.obj: jcparam.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcphuff.obj: jcphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jchuff.h
-jcprepct.obj: jcprepct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jcsample.obj: jcsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jctrans.obj: jctrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapimin.obj: jdapimin.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdapistd.obj: jdapistd.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdatadst.obj: jdatadst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdatasrc.obj: jdatasrc.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h
-jdcoefct.obj: jdcoefct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdcolor.obj: jdcolor.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jddctmgr.obj: jddctmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jdhuff.obj: jdhuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdinput.obj: jdinput.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmainct.obj: jdmainct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmarker.obj: jdmarker.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmaster.obj: jdmaster.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdmerge.obj: jdmerge.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdphuff.obj: jdphuff.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdhuff.h
-jdpostct.obj: jdpostct.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdsample.obj: jdsample.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jdtrans.obj: jdtrans.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jerror.obj: jerror.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jversion.h jerror.h
-jfdctflt.obj: jfdctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctfst.obj: jfdctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jfdctint.obj: jfdctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctflt.obj: jidctflt.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctfst.obj: jidctfst.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctint.obj: jidctint.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jidctred.obj: jidctred.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jdct.h
-jquant1.obj: jquant1.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jquant2.obj: jquant2.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jutils.obj: jutils.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h
-jmemmgr.obj: jmemmgr.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemansi.obj: jmemansi.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemname.obj: jmemname.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemnobs.obj: jmemnobs.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemdos.obj: jmemdos.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-jmemmac.obj: jmemmac.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h jmemsys.h
-cjpeg.obj: cjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-djpeg.obj: djpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h jversion.h
-jpegtran.obj: jpegtran.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h transupp.h jversion.h
-rdjpgcom.obj: rdjpgcom.c jinclude.h jconfig.h
-wrjpgcom.obj: wrjpgcom.c jinclude.h jconfig.h
-cdjpeg.obj: cdjpeg.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdcolmap.obj: rdcolmap.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdswitch.obj: rdswitch.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-transupp.obj: transupp.c jinclude.h jconfig.h jpeglib.h jmorecfg.h jpegint.h jerror.h transupp.h
-rdppm.obj: rdppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrppm.obj: wrppm.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdgif.obj: rdgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrgif.obj: wrgif.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdtarga.obj: rdtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrtarga.obj: wrtarga.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdbmp.obj: rdbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrbmp.obj: wrbmp.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-rdrle.obj: rdrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
-wrrle.obj: wrrle.c cdjpeg.h jinclude.h jconfig.h jpeglib.h jmorecfg.h jerror.h cderror.h
diff --git a/src/3rdparty/libjpeg/structure.doc b/src/3rdparty/libjpeg/structure.doc
deleted file mode 100644
index 51c9def7e..000000000
--- a/src/3rdparty/libjpeg/structure.doc
+++ /dev/null
@@ -1,948 +0,0 @@
-IJG JPEG LIBRARY:  SYSTEM ARCHITECTURE
-
-Copyright (C) 1991-1995, Thomas G. Lane.
-This file is part of the Independent JPEG Group's software.
-For conditions of distribution and use, see the accompanying README file.
-
-
-This file provides an overview of the architecture of the IJG JPEG software;
-that is, the functions of the various modules in the system and the interfaces
-between modules.  For more precise details about any data structure or calling
-convention, see the include files and comments in the source code.
-
-We assume that the reader is already somewhat familiar with the JPEG standard.
-The README file includes references for learning about JPEG.  The file
-libjpeg.doc describes the library from the viewpoint of an application
-programmer using the library; it's best to read that file before this one.
-Also, the file coderules.doc describes the coding style conventions we use.
-
-In this document, JPEG-specific terminology follows the JPEG standard:
-  A "component" means a color channel, e.g., Red or Luminance.
-  A "sample" is a single component value (i.e., one number in the image data).
-  A "coefficient" is a frequency coefficient (a DCT transform output number).
-  A "block" is an 8x8 group of samples or coefficients.
-  An "MCU" (minimum coded unit) is an interleaved set of blocks of size
-	determined by the sampling factors, or a single block in a
-	noninterleaved scan.
-We do not use the terms "pixel" and "sample" interchangeably.  When we say
-pixel, we mean an element of the full-size image, while a sample is an element
-of the downsampled image.  Thus the number of samples may vary across
-components while the number of pixels does not.  (This terminology is not used
-rigorously throughout the code, but it is used in places where confusion would
-otherwise result.)
-
-
-*** System features ***
-
-The IJG distribution contains two parts:
-  * A subroutine library for JPEG compression and decompression.
-  * cjpeg/djpeg, two sample applications that use the library to transform
-    JFIF JPEG files to and from several other image formats.
-cjpeg/djpeg are of no great intellectual complexity: they merely add a simple
-command-line user interface and I/O routines for several uncompressed image
-formats.  This document concentrates on the library itself.
-
-We desire the library to be capable of supporting all JPEG baseline, extended
-sequential, and progressive DCT processes.  Hierarchical processes are not
-supported.
-
-The library does not support the lossless (spatial) JPEG process.  Lossless
-JPEG shares little or no code with lossy JPEG, and would normally be used
-without the extensive pre- and post-processing provided by this library.
-We feel that lossless JPEG is better handled by a separate library.
-
-Within these limits, any set of compression parameters allowed by the JPEG
-spec should be readable for decompression.  (We can be more restrictive about
-what formats we can generate.)  Although the system design allows for all
-parameter values, some uncommon settings are not yet implemented and may
-never be; nonintegral sampling ratios are the prime example.  Furthermore,
-we treat 8-bit vs. 12-bit data precision as a compile-time switch, not a
-run-time option, because most machines can store 8-bit pixels much more
-compactly than 12-bit.
-
-For legal reasons, JPEG arithmetic coding is not currently supported, but
-extending the library to include it would be straightforward.
-
-By itself, the library handles only interchange JPEG datastreams --- in
-particular the widely used JFIF file format.  The library can be used by
-surrounding code to process interchange or abbreviated JPEG datastreams that
-are embedded in more complex file formats.  (For example, libtiff uses this
-library to implement JPEG compression within the TIFF file format.)
-
-The library includes a substantial amount of code that is not covered by the
-JPEG standard but is necessary for typical applications of JPEG.  These
-functions preprocess the image before JPEG compression or postprocess it after
-decompression.  They include colorspace conversion, downsampling/upsampling,
-and color quantization.  This code can be omitted if not needed.
-
-A wide range of quality vs. speed tradeoffs are possible in JPEG processing,
-and even more so in decompression postprocessing.  The decompression library
-provides multiple implementations that cover most of the useful tradeoffs,
-ranging from very-high-quality down to fast-preview operation.  On the
-compression side we have generally not provided low-quality choices, since
-compression is normally less time-critical.  It should be understood that the
-low-quality modes may not meet the JPEG standard's accuracy requirements;
-nonetheless, they are useful for viewers.
-
-
-*** Portability issues ***
-
-Portability is an essential requirement for the library.  The key portability
-issues that show up at the level of system architecture are:
-
-1.  Memory usage.  We want the code to be able to run on PC-class machines
-with limited memory.  Images should therefore be processed sequentially (in
-strips), to avoid holding the whole image in memory at once.  Where a
-full-image buffer is necessary, we should be able to use either virtual memory
-or temporary files.
-
-2.  Near/far pointer distinction.  To run efficiently on 80x86 machines, the
-code should distinguish "small" objects (kept in near data space) from
-"large" ones (kept in far data space).  This is an annoying restriction, but
-fortunately it does not impact code quality for less brain-damaged machines,
-and the source code clutter turns out to be minimal with sufficient use of
-pointer typedefs.
-
-3. Data precision.  We assume that "char" is at least 8 bits, "short" and
-"int" at least 16, "long" at least 32.  The code will work fine with larger
-data sizes, although memory may be used inefficiently in some cases.  However,
-the JPEG compressed datastream must ultimately appear on external storage as a
-sequence of 8-bit bytes if it is to conform to the standard.  This may pose a
-problem on machines where char is wider than 8 bits.  The library represents
-compressed data as an array of values of typedef JOCTET.  If no data type
-exactly 8 bits wide is available, custom data source and data destination
-modules must be written to unpack and pack the chosen JOCTET datatype into
-8-bit external representation.
-
-
-*** System overview ***
-
-The compressor and decompressor are each divided into two main sections:
-the JPEG compressor or decompressor proper, and the preprocessing or
-postprocessing functions.  The interface between these two sections is the
-image data that the official JPEG spec regards as its input or output: this
-data is in the colorspace to be used for compression, and it is downsampled
-to the sampling factors to be used.  The preprocessing and postprocessing
-steps are responsible for converting a normal image representation to or from
-this form.  (Those few applications that want to deal with YCbCr downsampled
-data can skip the preprocessing or postprocessing step.)
-
-Looking more closely, the compressor library contains the following main
-elements:
-
-  Preprocessing:
-    * Color space conversion (e.g., RGB to YCbCr).
-    * Edge expansion and downsampling.  Optionally, this step can do simple
-      smoothing --- this is often helpful for low-quality source data.
-  JPEG proper:
-    * MCU assembly, DCT, quantization.
-    * Entropy coding (sequential or progressive, Huffman or arithmetic).
-
-In addition to these modules we need overall control, marker generation,
-and support code (memory management & error handling).  There is also a
-module responsible for physically writing the output data --- typically
-this is just an interface to fwrite(), but some applications may need to
-do something else with the data.
-
-The decompressor library contains the following main elements:
-
-  JPEG proper:
-    * Entropy decoding (sequential or progressive, Huffman or arithmetic).
-    * Dequantization, inverse DCT, MCU disassembly.
-  Postprocessing:
-    * Upsampling.  Optionally, this step may be able to do more general
-      rescaling of the image.
-    * Color space conversion (e.g., YCbCr to RGB).  This step may also
-      provide gamma adjustment [ currently it does not ].
-    * Optional color quantization (e.g., reduction to 256 colors).
-    * Optional color precision reduction (e.g., 24-bit to 15-bit color).
-      [This feature is not currently implemented.]
-
-We also need overall control, marker parsing, and a data source module.
-The support code (memory management & error handling) can be shared with
-the compression half of the library.
-
-There may be several implementations of each of these elements, particularly
-in the decompressor, where a wide range of speed/quality tradeoffs is very
-useful.  It must be understood that some of the best speedups involve
-merging adjacent steps in the pipeline.  For example, upsampling, color space
-conversion, and color quantization might all be done at once when using a
-low-quality ordered-dither technique.  The system architecture is designed to
-allow such merging where appropriate.
-
-
-Note: it is convenient to regard edge expansion (padding to block boundaries)
-as a preprocessing/postprocessing function, even though the JPEG spec includes
-it in compression/decompression.  We do this because downsampling/upsampling
-can be simplified a little if they work on padded data: it's not necessary to
-have special cases at the right and bottom edges.  Therefore the interface
-buffer is always an integral number of blocks wide and high, and we expect
-compression preprocessing to pad the source data properly.  Padding will occur
-only to the next block (8-sample) boundary.  In an interleaved-scan situation,
-additional dummy blocks may be used to fill out MCUs, but the MCU assembly and
-disassembly logic will create or discard these blocks internally.  (This is
-advantageous for speed reasons, since we avoid DCTing the dummy blocks.
-It also permits a small reduction in file size, because the compressor can
-choose dummy block contents so as to minimize their size in compressed form.
-Finally, it makes the interface buffer specification independent of whether
-the file is actually interleaved or not.)  Applications that wish to deal
-directly with the downsampled data must provide similar buffering and padding
-for odd-sized images.
-
-
-*** Poor man's object-oriented programming ***
-
-It should be clear by now that we have a lot of quasi-independent processing
-steps, many of which have several possible behaviors.  To avoid cluttering the
-code with lots of switch statements, we use a simple form of object-style
-programming to separate out the different possibilities.
-
-For example, two different color quantization algorithms could be implemented
-as two separate modules that present the same external interface; at runtime,
-the calling code will access the proper module indirectly through an "object".
-
-We can get the limited features we need while staying within portable C.
-The basic tool is a function pointer.  An "object" is just a struct
-containing one or more function pointer fields, each of which corresponds to
-a method name in real object-oriented languages.  During initialization we
-fill in the function pointers with references to whichever module we have
-determined we need to use in this run.  Then invocation of the module is done
-by indirecting through a function pointer; on most machines this is no more
-expensive than a switch statement, which would be the only other way of
-making the required run-time choice.  The really significant benefit, of
-course, is keeping the source code clean and well structured.
-
-We can also arrange to have private storage that varies between different
-implementations of the same kind of object.  We do this by making all the
-module-specific object structs be separately allocated entities, which will
-be accessed via pointers in the master compression or decompression struct.
-The "public" fields or methods for a given kind of object are specified by
-a commonly known struct.  But a module's initialization code can allocate
-a larger struct that contains the common struct as its first member, plus
-additional private fields.  With appropriate pointer casting, the module's
-internal functions can access these private fields.  (For a simple example,
-see jdatadst.c, which implements the external interface specified by struct
-jpeg_destination_mgr, but adds extra fields.)
-
-(Of course this would all be a lot easier if we were using C++, but we are
-not yet prepared to assume that everyone has a C++ compiler.)
-
-An important benefit of this scheme is that it is easy to provide multiple
-versions of any method, each tuned to a particular case.  While a lot of
-precalculation might be done to select an optimal implementation of a method,
-the cost per invocation is constant.  For example, the upsampling step might
-have a "generic" method, plus one or more "hardwired" methods for the most
-popular sampling factors; the hardwired methods would be faster because they'd
-use straight-line code instead of for-loops.  The cost to determine which
-method to use is paid only once, at startup, and the selection criteria are
-hidden from the callers of the method.
-
-This plan differs a little bit from usual object-oriented structures, in that
-only one instance of each object class will exist during execution.  The
-reason for having the class structure is that on different runs we may create
-different instances (choose to execute different modules).  You can think of
-the term "method" as denoting the common interface presented by a particular
-set of interchangeable functions, and "object" as denoting a group of related
-methods, or the total shared interface behavior of a group of modules.
-
-
-*** Overall control structure ***
-
-We previously mentioned the need for overall control logic in the compression
-and decompression libraries.  In IJG implementations prior to v5, overall
-control was mostly provided by "pipeline control" modules, which proved to be
-large, unwieldy, and hard to understand.  To improve the situation, the
-control logic has been subdivided into multiple modules.  The control modules
-consist of:
-
-1. Master control for module selection and initialization.  This has two
-responsibilities:
-
-   1A.  Startup initialization at the beginning of image processing.
-        The individual processing modules to be used in this run are selected
-        and given initialization calls.
-
-   1B.  Per-pass control.  This determines how many passes will be performed
-        and calls each active processing module to configure itself
-        appropriately at the beginning of each pass.  End-of-pass processing,
-	where necessary, is also invoked from the master control module.
-
-   Method selection is partially distributed, in that a particular processing
-   module may contain several possible implementations of a particular method,
-   which it will select among when given its initialization call.  The master
-   control code need only be concerned with decisions that affect more than
-   one module.
- 
-2. Data buffering control.  A separate control module exists for each
-   inter-processing-step data buffer.  This module is responsible for
-   invoking the processing steps that write or read that data buffer.
-
-Each buffer controller sees the world as follows:
-
-input data => processing step A => buffer => processing step B => output data
-                      |              |               |
-              ------------------ controller ------------------
-
-The controller knows the dataflow requirements of steps A and B: how much data
-they want to accept in one chunk and how much they output in one chunk.  Its
-function is to manage its buffer and call A and B at the proper times.
-
-A data buffer control module may itself be viewed as a processing step by a
-higher-level control module; thus the control modules form a binary tree with
-elementary processing steps at the leaves of the tree.
-
-The control modules are objects.  A considerable amount of flexibility can
-be had by replacing implementations of a control module.  For example:
-* Merging of adjacent steps in the pipeline is done by replacing a control
-  module and its pair of processing-step modules with a single processing-
-  step module.  (Hence the possible merges are determined by the tree of
-  control modules.)
-* In some processing modes, a given interstep buffer need only be a "strip"
-  buffer large enough to accommodate the desired data chunk sizes.  In other
-  modes, a full-image buffer is needed and several passes are required.
-  The control module determines which kind of buffer is used and manipulates
-  virtual array buffers as needed.  One or both processing steps may be
-  unaware of the multi-pass behavior.
-
-In theory, we might be able to make all of the data buffer controllers
-interchangeable and provide just one set of implementations for all.  In
-practice, each one contains considerable special-case processing for its
-particular job.  The buffer controller concept should be regarded as an
-overall system structuring principle, not as a complete description of the
-task performed by any one controller.
-
-
-*** Compression object structure ***
-
-Here is a sketch of the logical structure of the JPEG compression library:
-
-                                                 |-- Colorspace conversion
-                  |-- Preprocessing controller --|
-                  |                              |-- Downsampling
-Main controller --|
-                  |                            |-- Forward DCT, quantize
-                  |-- Coefficient controller --|
-                                               |-- Entropy encoding
-
-This sketch also describes the flow of control (subroutine calls) during
-typical image data processing.  Each of the components shown in the diagram is
-an "object" which may have several different implementations available.  One
-or more source code files contain the actual implementation(s) of each object.
-
-The objects shown above are:
-
-* Main controller: buffer controller for the subsampled-data buffer, which
-  holds the preprocessed input data.  This controller invokes preprocessing to
-  fill the subsampled-data buffer, and JPEG compression to empty it.  There is
-  usually no need for a full-image buffer here; a strip buffer is adequate.
-
-* Preprocessing controller: buffer controller for the downsampling input data
-  buffer, which lies between colorspace conversion and downsampling.  Note
-  that a unified conversion/downsampling module would probably replace this
-  controller entirely.
-
-* Colorspace conversion: converts application image data into the desired
-  JPEG color space; also changes the data from pixel-interleaved layout to
-  separate component planes.  Processes one pixel row at a time.
-
-* Downsampling: performs reduction of chroma components as required.
-  Optionally may perform pixel-level smoothing as well.  Processes a "row
-  group" at a time, where a row group is defined as Vmax pixel rows of each
-  component before downsampling, and Vk sample rows afterwards (remember Vk
-  differs across components).  Some downsampling or smoothing algorithms may
-  require context rows above and below the current row group; the
-  preprocessing controller is responsible for supplying these rows via proper
-  buffering.  The downsampler is responsible for edge expansion at the right
-  edge (i.e., extending each sample row to a multiple of 8 samples); but the
-  preprocessing controller is responsible for vertical edge expansion (i.e.,
-  duplicating the bottom sample row as needed to make a multiple of 8 rows).
-
-* Coefficient controller: buffer controller for the DCT-coefficient data.
-  This controller handles MCU assembly, including insertion of dummy DCT
-  blocks when needed at the right or bottom edge.  When performing
-  Huffman-code optimization or emitting a multiscan JPEG file, this
-  controller is responsible for buffering the full image.  The equivalent of
-  one fully interleaved MCU row of subsampled data is processed per call,
-  even when the JPEG file is noninterleaved.
-
-* Forward DCT and quantization: Perform DCT, quantize, and emit coefficients.
-  Works on one or more DCT blocks at a time.  (Note: the coefficients are now
-  emitted in normal array order, which the entropy encoder is expected to
-  convert to zigzag order as necessary.  Prior versions of the IJG code did
-  the conversion to zigzag order within the quantization step.)
-
-* Entropy encoding: Perform Huffman or arithmetic entropy coding and emit the
-  coded data to the data destination module.  Works on one MCU per call.
-  For progressive JPEG, the same DCT blocks are fed to the entropy coder
-  during each pass, and the coder must emit the appropriate subset of
-  coefficients.
-
-In addition to the above objects, the compression library includes these
-objects:
-
-* Master control: determines the number of passes required, controls overall
-  and per-pass initialization of the other modules.
-
-* Marker writing: generates JPEG markers (except for RSTn, which is emitted
-  by the entropy encoder when needed).
-
-* Data destination manager: writes the output JPEG datastream to its final
-  destination (e.g., a file).  The destination manager supplied with the
-  library knows how to write to a stdio stream; for other behaviors, the
-  surrounding application may provide its own destination manager.
-
-* Memory manager: allocates and releases memory, controls virtual arrays
-  (with backing store management, where required).
-
-* Error handler: performs formatting and output of error and trace messages;
-  determines handling of nonfatal errors.  The surrounding application may
-  override some or all of this object's methods to change error handling.
-
-* Progress monitor: supports output of "percent-done" progress reports.
-  This object represents an optional callback to the surrounding application:
-  if wanted, it must be supplied by the application.
-
-The error handler, destination manager, and progress monitor objects are
-defined as separate objects in order to simplify application-specific
-customization of the JPEG library.  A surrounding application may override
-individual methods or supply its own all-new implementation of one of these
-objects.  The object interfaces for these objects are therefore treated as
-part of the application interface of the library, whereas the other objects
-are internal to the library.
-
-The error handler and memory manager are shared by JPEG compression and
-decompression; the progress monitor, if used, may be shared as well.
-
-
-*** Decompression object structure ***
-
-Here is a sketch of the logical structure of the JPEG decompression library:
-
-                                               |-- Entropy decoding
-                  |-- Coefficient controller --|
-                  |                            |-- Dequantize, Inverse DCT
-Main controller --|
-                  |                               |-- Upsampling
-                  |-- Postprocessing controller --|   |-- Colorspace conversion
-                                                  |-- Color quantization
-                                                  |-- Color precision reduction
-
-As before, this diagram also represents typical control flow.  The objects
-shown are:
-
-* Main controller: buffer controller for the subsampled-data buffer, which
-  holds the output of JPEG decompression proper.  This controller's primary
-  task is to feed the postprocessing procedure.  Some upsampling algorithms
-  may require context rows above and below the current row group; when this
-  is true, the main controller is responsible for managing its buffer so as
-  to make context rows available.  In the current design, the main buffer is
-  always a strip buffer; a full-image buffer is never required.
-
-* Coefficient controller: buffer controller for the DCT-coefficient data.
-  This controller handles MCU disassembly, including deletion of any dummy
-  DCT blocks at the right or bottom edge.  When reading a multiscan JPEG
-  file, this controller is responsible for buffering the full image.
-  (Buffering DCT coefficients, rather than samples, is necessary to support
-  progressive JPEG.)  The equivalent of one fully interleaved MCU row of
-  subsampled data is processed per call, even when the source JPEG file is
-  noninterleaved.
-
-* Entropy decoding: Read coded data from the data source module and perform
-  Huffman or arithmetic entropy decoding.  Works on one MCU per call.
-  For progressive JPEG decoding, the coefficient controller supplies the prior
-  coefficients of each MCU (initially all zeroes), which the entropy decoder
-  modifies in each scan.
-
-* Dequantization and inverse DCT: like it says.  Note that the coefficients
-  buffered by the coefficient controller have NOT been dequantized; we
-  merge dequantization and inverse DCT into a single step for speed reasons.
-  When scaled-down output is asked for, simplified DCT algorithms may be used
-  that emit only 1x1, 2x2, or 4x4 samples per DCT block, not the full 8x8.
-  Works on one DCT block at a time.
-
-* Postprocessing controller: buffer controller for the color quantization
-  input buffer, when quantization is in use.  (Without quantization, this
-  controller just calls the upsampler.)  For two-pass quantization, this
-  controller is responsible for buffering the full-image data.
-
-* Upsampling: restores chroma components to full size.  (May support more
-  general output rescaling, too.  Note that if undersized DCT outputs have
-  been emitted by the DCT module, this module must adjust so that properly
-  sized outputs are created.)  Works on one row group at a time.  This module
-  also calls the color conversion module, so its top level is effectively a
-  buffer controller for the upsampling->color conversion buffer.  However, in
-  all but the highest-quality operating modes, upsampling and color
-  conversion are likely to be merged into a single step.
-
-* Colorspace conversion: convert from JPEG color space to output color space,
-  and change data layout from separate component planes to pixel-interleaved.
-  Works on one pixel row at a time.
-
-* Color quantization: reduce the data to colormapped form, using either an
-  externally specified colormap or an internally generated one.  This module
-  is not used for full-color output.  Works on one pixel row at a time; may
-  require two passes to generate a color map.  Note that the output will
-  always be a single component representing colormap indexes.  In the current
-  design, the output values are JSAMPLEs, so an 8-bit compilation cannot
-  quantize to more than 256 colors.  This is unlikely to be a problem in
-  practice.
-
-* Color reduction: this module handles color precision reduction, e.g.,
-  generating 15-bit color (5 bits/primary) from JPEG's 24-bit output.
-  Not quite clear yet how this should be handled... should we merge it with
-  colorspace conversion???
-
-Note that some high-speed operating modes might condense the entire
-postprocessing sequence to a single module (upsample, color convert, and
-quantize in one step).
-
-In addition to the above objects, the decompression library includes these
-objects:
-
-* Master control: determines the number of passes required, controls overall
-  and per-pass initialization of the other modules.  This is subdivided into
-  input and output control: jdinput.c controls only input-side processing,
-  while jdmaster.c handles overall initialization and output-side control.
-
-* Marker reading: decodes JPEG markers (except for RSTn).
-
-* Data source manager: supplies the input JPEG datastream.  The source
-  manager supplied with the library knows how to read from a stdio stream;
-  for other behaviors, the surrounding application may provide its own source
-  manager.
-
-* Memory manager: same as for compression library.
-
-* Error handler: same as for compression library.
-
-* Progress monitor: same as for compression library.
-
-As with compression, the data source manager, error handler, and progress
-monitor are candidates for replacement by a surrounding application.
-
-
-*** Decompression input and output separation ***
-
-To support efficient incremental display of progressive JPEG files, the
-decompressor is divided into two sections that can run independently:
-
-1. Data input includes marker parsing, entropy decoding, and input into the
-   coefficient controller's DCT coefficient buffer.  Note that this
-   processing is relatively cheap and fast.
-
-2. Data output reads from the DCT coefficient buffer and performs the IDCT
-   and all postprocessing steps.
-
-For a progressive JPEG file, the data input processing is allowed to get
-arbitrarily far ahead of the data output processing.  (This occurs only
-if the application calls jpeg_consume_input(); otherwise input and output
-run in lockstep, since the input section is called only when the output
-section needs more data.)  In this way the application can avoid making
-extra display passes when data is arriving faster than the display pass
-can run.  Furthermore, it is possible to abort an output pass without
-losing anything, since the coefficient buffer is read-only as far as the
-output section is concerned.  See libjpeg.doc for more detail.
-
-A full-image coefficient array is only created if the JPEG file has multiple
-scans (or if the application specifies buffered-image mode anyway).  When
-reading a single-scan file, the coefficient controller normally creates only
-a one-MCU buffer, so input and output processing must run in lockstep in this
-case.  jpeg_consume_input() is effectively a no-op in this situation.
-
-The main impact of dividing the decompressor in this fashion is that we must
-be very careful with shared variables in the cinfo data structure.  Each
-variable that can change during the course of decompression must be
-classified as belonging to data input or data output, and each section must
-look only at its own variables.  For example, the data output section may not
-depend on any of the variables that describe the current scan in the JPEG
-file, because these may change as the data input section advances into a new
-scan.
-
-The progress monitor is (somewhat arbitrarily) defined to treat input of the
-file as one pass when buffered-image mode is not used, and to ignore data
-input work completely when buffered-image mode is used.  Note that the
-library has no reliable way to predict the number of passes when dealing
-with a progressive JPEG file, nor can it predict the number of output passes
-in buffered-image mode.  So the work estimate is inherently bogus anyway.
-
-No comparable division is currently made in the compression library, because
-there isn't any real need for it.
-
-
-*** Data formats ***
-
-Arrays of pixel sample values use the following data structure:
-
-    typedef something JSAMPLE;		a pixel component value, 0..MAXJSAMPLE
-    typedef JSAMPLE *JSAMPROW;		ptr to a row of samples
-    typedef JSAMPROW *JSAMPARRAY;	ptr to a list of rows
-    typedef JSAMPARRAY *JSAMPIMAGE;	ptr to a list of color-component arrays
-
-The basic element type JSAMPLE will typically be one of unsigned char,
-(signed) char, or short.  Short will be used if samples wider than 8 bits are
-to be supported (this is a compile-time option).  Otherwise, unsigned char is
-used if possible.  If the compiler only supports signed chars, then it is
-necessary to mask off the value when reading.  Thus, all reads of JSAMPLE
-values must be coded as "GETJSAMPLE(value)", where the macro will be defined
-as "((value) & 0xFF)" on signed-char machines and "((int) (value))" elsewhere.
-
-With these conventions, JSAMPLE values can be assumed to be >= 0.  This helps
-simplify correct rounding during downsampling, etc.  The JPEG standard's
-specification that sample values run from -128..127 is accommodated by
-subtracting 128 just as the sample value is copied into the source array for
-the DCT step (this will be an array of signed ints).  Similarly, during
-decompression the output of the IDCT step will be immediately shifted back to
-0..255.  (NB: different values are required when 12-bit samples are in use.
-The code is written in terms of MAXJSAMPLE and CENTERJSAMPLE, which will be
-defined as 255 and 128 respectively in an 8-bit implementation, and as 4095
-and 2048 in a 12-bit implementation.)
-
-We use a pointer per row, rather than a two-dimensional JSAMPLE array.  This
-choice costs only a small amount of memory and has several benefits:
-* Code using the data structure doesn't need to know the allocated width of
-  the rows.  This simplifies edge expansion/compression, since we can work
-  in an array that's wider than the logical picture width.
-* Indexing doesn't require multiplication; this is a performance win on many
-  machines.
-* Arrays with more than 64K total elements can be supported even on machines
-  where malloc() cannot allocate chunks larger than 64K.
-* The rows forming a component array may be allocated at different times
-  without extra copying.  This trick allows some speedups in smoothing steps
-  that need access to the previous and next rows.
-
-Note that each color component is stored in a separate array; we don't use the
-traditional layout in which the components of a pixel are stored together.
-This simplifies coding of modules that work on each component independently,
-because they don't need to know how many components there are.  Furthermore,
-we can read or write each component to a temporary file independently, which
-is helpful when dealing with noninterleaved JPEG files.
-
-In general, a specific sample value is accessed by code such as
-	GETJSAMPLE(image[colorcomponent][row][col])
-where col is measured from the image left edge, but row is measured from the
-first sample row currently in memory.  Either of the first two indexings can
-be precomputed by copying the relevant pointer.
-
-
-Since most image-processing applications prefer to work on images in which
-the components of a pixel are stored together, the data passed to or from the
-surrounding application uses the traditional convention: a single pixel is
-represented by N consecutive JSAMPLE values, and an image row is an array of
-(# of color components)*(image width) JSAMPLEs.  One or more rows of data can
-be represented by a pointer of type JSAMPARRAY in this scheme.  This scheme is
-converted to component-wise storage inside the JPEG library.  (Applications
-that want to skip JPEG preprocessing or postprocessing will have to contend
-with component-wise storage.)
-
-
-Arrays of DCT-coefficient values use the following data structure:
-
-    typedef short JCOEF;		a 16-bit signed integer
-    typedef JCOEF JBLOCK[DCTSIZE2];	an 8x8 block of coefficients
-    typedef JBLOCK *JBLOCKROW;		ptr to one horizontal row of 8x8 blocks
-    typedef JBLOCKROW *JBLOCKARRAY;	ptr to a list of such rows
-    typedef JBLOCKARRAY *JBLOCKIMAGE;	ptr to a list of color component arrays
-
-The underlying type is at least a 16-bit signed integer; while "short" is big
-enough on all machines of interest, on some machines it is preferable to use
-"int" for speed reasons, despite the storage cost.  Coefficients are grouped
-into 8x8 blocks (but we always use #defines DCTSIZE and DCTSIZE2 rather than
-"8" and "64").
-
-The contents of a coefficient block may be in either "natural" or zigzagged
-order, and may be true values or divided by the quantization coefficients,
-depending on where the block is in the processing pipeline.  In the current
-library, coefficient blocks are kept in natural order everywhere; the entropy
-codecs zigzag or dezigzag the data as it is written or read.  The blocks
-contain quantized coefficients everywhere outside the DCT/IDCT subsystems.
-(This latter decision may need to be revisited to support variable
-quantization a la JPEG Part 3.)
-
-Notice that the allocation unit is now a row of 8x8 blocks, corresponding to
-eight rows of samples.  Otherwise the structure is much the same as for
-samples, and for the same reasons.
-
-On machines where malloc() can't handle a request bigger than 64Kb, this data
-structure limits us to rows of less than 512 JBLOCKs, or a picture width of
-4000+ pixels.  This seems an acceptable restriction.
-
-
-On 80x86 machines, the bottom-level pointer types (JSAMPROW and JBLOCKROW)
-must be declared as "far" pointers, but the upper levels can be "near"
-(implying that the pointer lists are allocated in the DS segment).
-We use a #define symbol FAR, which expands to the "far" keyword when
-compiling on 80x86 machines and to nothing elsewhere.
-
-
-*** Suspendable processing ***
-
-In some applications it is desirable to use the JPEG library as an
-incremental, memory-to-memory filter.  In this situation the data source or
-destination may be a limited-size buffer, and we can't rely on being able to
-empty or refill the buffer at arbitrary times.  Instead the application would
-like to have control return from the library at buffer overflow/underrun, and
-then resume compression or decompression at a later time.
-
-This scenario is supported for simple cases.  (For anything more complex, we
-recommend that the application "bite the bullet" and develop real multitasking
-capability.)  The libjpeg.doc file goes into more detail about the usage and
-limitations of this capability; here we address the implications for library
-structure.
-
-The essence of the problem is that the entropy codec (coder or decoder) must
-be prepared to stop at arbitrary times.  In turn, the controllers that call
-the entropy codec must be able to stop before having produced or consumed all
-the data that they normally would handle in one call.  That part is reasonably
-straightforward: we make the controller call interfaces include "progress
-counters" which indicate the number of data chunks successfully processed, and
-we require callers to test the counter rather than just assume all of the data
-was processed.
-
-Rather than trying to restart at an arbitrary point, the current Huffman
-codecs are designed to restart at the beginning of the current MCU after a
-suspension due to buffer overflow/underrun.  At the start of each call, the
-codec's internal state is loaded from permanent storage (in the JPEG object
-structures) into local variables.  On successful completion of the MCU, the
-permanent state is updated.  (This copying is not very expensive, and may even
-lead to *improved* performance if the local variables can be registerized.)
-If a suspension occurs, the codec simply returns without updating the state,
-thus effectively reverting to the start of the MCU.  Note that this implies
-leaving some data unprocessed in the source/destination buffer (ie, the
-compressed partial MCU).  The data source/destination module interfaces are
-specified so as to make this possible.  This also implies that the data buffer
-must be large enough to hold a worst-case compressed MCU; a couple thousand
-bytes should be enough.
-
-In a successive-approximation AC refinement scan, the progressive Huffman
-decoder has to be able to undo assignments of newly nonzero coefficients if it
-suspends before the MCU is complete, since decoding requires distinguishing
-previously-zero and previously-nonzero coefficients.  This is a bit tedious
-but probably won't have much effect on performance.  Other variants of Huffman
-decoding need not worry about this, since they will just store the same values
-again if forced to repeat the MCU.
-
-This approach would probably not work for an arithmetic codec, since its
-modifiable state is quite large and couldn't be copied cheaply.  Instead it
-would have to suspend and resume exactly at the point of the buffer end.
-
-The JPEG marker reader is designed to cope with suspension at an arbitrary
-point.  It does so by backing up to the start of the marker parameter segment,
-so the data buffer must be big enough to hold the largest marker of interest.
-Again, a couple KB should be adequate.  (A special "skip" convention is used
-to bypass COM and APPn markers, so these can be larger than the buffer size
-without causing problems; otherwise a 64K buffer would be needed in the worst
-case.)
-
-The JPEG marker writer currently does *not* cope with suspension.  I feel that
-this is not necessary; it is much easier simply to require the application to
-ensure there is enough buffer space before starting.  (An empty 2K buffer is
-more than sufficient for the header markers; and ensuring there are a dozen or
-two bytes available before calling jpeg_finish_compress() will suffice for the
-trailer.)  This would not work for writing multi-scan JPEG files, but
-we simply do not intend to support that capability with suspension.
-
-
-*** Memory manager services ***
-
-The JPEG library's memory manager controls allocation and deallocation of
-memory, and it manages large "virtual" data arrays on machines where the
-operating system does not provide virtual memory.  Note that the same
-memory manager serves both compression and decompression operations.
-
-In all cases, allocated objects are tied to a particular compression or
-decompression master record, and they will be released when that master
-record is destroyed.
-
-The memory manager does not provide explicit deallocation of objects.
-Instead, objects are created in "pools" of free storage, and a whole pool
-can be freed at once.  This approach helps prevent storage-leak bugs, and
-it speeds up operations whenever malloc/free are slow (as they often are).
-The pools can be regarded as lifetime identifiers for objects.  Two
-pools/lifetimes are defined:
-  * JPOOL_PERMANENT	lasts until master record is destroyed
-  * JPOOL_IMAGE		lasts until done with image (JPEG datastream)
-Permanent lifetime is used for parameters and tables that should be carried
-across from one datastream to another; this includes all application-visible
-parameters.  Image lifetime is used for everything else.  (A third lifetime,
-JPOOL_PASS = one processing pass, was originally planned.  However it was
-dropped as not being worthwhile.  The actual usage patterns are such that the
-peak memory usage would be about the same anyway; and having per-pass storage
-substantially complicates the virtual memory allocation rules --- see below.)
-
-The memory manager deals with three kinds of object:
-1. "Small" objects.  Typically these require no more than 10K-20K total.
-2. "Large" objects.  These may require tens to hundreds of K depending on
-   image size.  Semantically they behave the same as small objects, but we
-   distinguish them for two reasons:
-     * On MS-DOS machines, large objects are referenced by FAR pointers,
-       small objects by NEAR pointers.
-     * Pool allocation heuristics may differ for large and small objects.
-   Note that individual "large" objects cannot exceed the size allowed by
-   type size_t, which may be 64K or less on some machines.
-3. "Virtual" objects.  These are large 2-D arrays of JSAMPLEs or JBLOCKs
-   (typically large enough for the entire image being processed).  The
-   memory manager provides stripwise access to these arrays.  On machines
-   without virtual memory, the rest of the array may be swapped out to a
-   temporary file.
-
-(Note: JSAMPARRAY and JBLOCKARRAY data structures are a combination of large
-objects for the data proper and small objects for the row pointers.  For
-convenience and speed, the memory manager provides single routines to create
-these structures.  Similarly, virtual arrays include a small control block
-and a JSAMPARRAY or JBLOCKARRAY working buffer, all created with one call.)
-
-In the present implementation, virtual arrays are only permitted to have image
-lifespan.  (Permanent lifespan would not be reasonable, and pass lifespan is
-not very useful since a virtual array's raison d'etre is to store data for
-multiple passes through the image.)  We also expect that only "small" objects
-will be given permanent lifespan, though this restriction is not required by
-the memory manager.
-
-In a non-virtual-memory machine, some performance benefit can be gained by
-making the in-memory buffers for virtual arrays be as large as possible.
-(For small images, the buffers might fit entirely in memory, so blind
-swapping would be very wasteful.)  The memory manager will adjust the height
-of the buffers to fit within a prespecified maximum memory usage.  In order
-to do this in a reasonably optimal fashion, the manager needs to allocate all
-of the virtual arrays at once.  Therefore, there isn't a one-step allocation
-routine for virtual arrays; instead, there is a "request" routine that simply
-allocates the control block, and a "realize" routine (called just once) that
-determines space allocation and creates all of the actual buffers.  The
-realize routine must allow for space occupied by non-virtual large objects.
-(We don't bother to factor in the space needed for small objects, on the
-grounds that it isn't worth the trouble.)
-
-To support all this, we establish the following protocol for doing business
-with the memory manager:
-  1. Modules must request virtual arrays (which may have only image lifespan)
-     during the initial setup phase, i.e., in their jinit_xxx routines.
-  2. All "large" objects (including JSAMPARRAYs and JBLOCKARRAYs) must also be
-     allocated during initial setup.
-  3. realize_virt_arrays will be called at the completion of initial setup.
-     The above conventions ensure that sufficient information is available
-     for it to choose a good size for virtual array buffers.
-Small objects of any lifespan may be allocated at any time.  We expect that
-the total space used for small objects will be small enough to be negligible
-in the realize_virt_arrays computation.
-
-In a virtual-memory machine, we simply pretend that the available space is
-infinite, thus causing realize_virt_arrays to decide that it can allocate all
-the virtual arrays as full-size in-memory buffers.  The overhead of the
-virtual-array access protocol is very small when no swapping occurs.
-
-A virtual array can be specified to be "pre-zeroed"; when this flag is set,
-never-yet-written sections of the array are set to zero before being made
-available to the caller.  If this flag is not set, never-written sections
-of the array contain garbage.  (This feature exists primarily because the
-equivalent logic would otherwise be needed in jdcoefct.c for progressive
-JPEG mode; we may as well make it available for possible other uses.)
-
-The first write pass on a virtual array is required to occur in top-to-bottom
-order; read passes, as well as any write passes after the first one, may
-access the array in any order.  This restriction exists partly to simplify
-the virtual array control logic, and partly because some file systems may not
-support seeking beyond the current end-of-file in a temporary file.  The main
-implication of this restriction is that rearrangement of rows (such as
-converting top-to-bottom data order to bottom-to-top) must be handled while
-reading data out of the virtual array, not while putting it in.
-
-
-*** Memory manager internal structure ***
-
-To isolate system dependencies as much as possible, we have broken the
-memory manager into two parts.  There is a reasonably system-independent
-"front end" (jmemmgr.c) and a "back end" that contains only the code
-likely to change across systems.  All of the memory management methods
-outlined above are implemented by the front end.  The back end provides
-the following routines for use by the front end (none of these routines
-are known to the rest of the JPEG code):
-
-jpeg_mem_init, jpeg_mem_term	system-dependent initialization/shutdown
-
-jpeg_get_small, jpeg_free_small	interface to malloc and free library routines
-				(or their equivalents)
-
-jpeg_get_large, jpeg_free_large	interface to FAR malloc/free in MSDOS machines;
-				else usually the same as
-				jpeg_get_small/jpeg_free_small
-
-jpeg_mem_available		estimate available memory
-
-jpeg_open_backing_store		create a backing-store object
-
-read_backing_store,		manipulate a backing-store object
-write_backing_store,
-close_backing_store
-
-On some systems there will be more than one type of backing-store object
-(specifically, in MS-DOS a backing store file might be an area of extended
-memory as well as a disk file).  jpeg_open_backing_store is responsible for
-choosing how to implement a given object.  The read/write/close routines
-are method pointers in the structure that describes a given object; this
-lets them be different for different object types.
-
-It may be necessary to ensure that backing store objects are explicitly
-released upon abnormal program termination.  For example, MS-DOS won't free
-extended memory by itself.  To support this, we will expect the main program
-or surrounding application to arrange to call self_destruct (typically via
-jpeg_destroy) upon abnormal termination.  This may require a SIGINT signal
-handler or equivalent.  We don't want to have the back end module install its
-own signal handler, because that would pre-empt the surrounding application's
-ability to control signal handling.
-
-The IJG distribution includes several memory manager back end implementations.
-Usually the same back end should be suitable for all applications on a given
-system, but it is possible for an application to supply its own back end at
-need.
-
-
-*** Implications of DNL marker ***
-
-Some JPEG files may use a DNL marker to postpone definition of the image
-height (this would be useful for a fax-like scanner's output, for instance).
-In these files the SOF marker claims the image height is 0, and you only
-find out the true image height at the end of the first scan.
-
-We could read these files as follows:
-1. Upon seeing zero image height, replace it by 65535 (the maximum allowed).
-2. When the DNL is found, update the image height in the global image
-   descriptor.
-This implies that control modules must avoid making copies of the image
-height, and must re-test for termination after each MCU row.  This would
-be easy enough to do.
-
-In cases where image-size data structures are allocated, this approach will
-result in very inefficient use of virtual memory or much-larger-than-necessary
-temporary files.  This seems acceptable for something that probably won't be a
-mainstream usage.  People might have to forgo use of memory-hogging options
-(such as two-pass color quantization or noninterleaved JPEG files) if they
-want efficient conversion of such files.  (One could improve efficiency by
-demanding a user-supplied upper bound for the height, less than 65536; in most
-cases it could be much less.)
-
-The standard also permits the SOF marker to overestimate the image height,
-with a DNL to give the true, smaller height at the end of the first scan.
-This would solve the space problems if the overestimate wasn't too great.
-However, it implies that you don't even know whether DNL will be used.
-
-This leads to a couple of very serious objections:
-1. Testing for a DNL marker must occur in the inner loop of the decompressor's
-   Huffman decoder; this implies a speed penalty whether the feature is used
-   or not.
-2. There is no way to hide the last-minute change in image height from an
-   application using the decoder.  Thus *every* application using the IJG
-   library would suffer a complexity penalty whether it cared about DNL or
-   not.
-We currently do not support DNL because of these problems.
-
-A different approach is to insist that DNL-using files be preprocessed by a
-separate program that reads ahead to the DNL, then goes back and fixes the SOF
-marker.  This is a much simpler solution and is probably far more efficient.
-Even if one wants piped input, buffering the first scan of the JPEG file needs
-a lot smaller temp file than is implied by the maximum-height method.  For
-this approach we'd simply treat DNL as a no-op in the decompressor (at most,
-check that it matches the SOF image height).
-
-We will not worry about making the compressor capable of outputting DNL.
-Something similar to the first scheme above could be applied if anyone ever
-wants to make that work.
diff --git a/src/3rdparty/libjpeg/usage.doc b/src/3rdparty/libjpeg/usage.doc
deleted file mode 100644
index b5e2b9a4f..000000000
--- a/src/3rdparty/libjpeg/usage.doc
+++ /dev/null
@@ -1,562 +0,0 @@
-USAGE instructions for the Independent JPEG Group's JPEG software
-=================================================================
-
-This file describes usage of the JPEG conversion programs cjpeg and djpeg,
-as well as the utility programs jpegtran, rdjpgcom and wrjpgcom.  (See
-the other documentation files if you wish to use the JPEG library within
-your own programs.)
-
-If you are on a Unix machine you may prefer to read the Unix-style manual
-pages in files cjpeg.1, djpeg.1, jpegtran.1, rdjpgcom.1, wrjpgcom.1.
-
-
-INTRODUCTION
-
-These programs implement JPEG image compression and decompression.  JPEG
-(pronounced "jay-peg") is a standardized compression method for full-color
-and gray-scale images.  JPEG is designed to handle "real-world" scenes,
-for example scanned photographs.  Cartoons, line drawings, and other
-non-realistic images are not JPEG's strong suit; on that sort of material
-you may get poor image quality and/or little compression.
-
-JPEG is lossy, meaning that the output image is not necessarily identical to
-the input image.  Hence you should not use JPEG if you have to have identical
-output bits.  However, on typical real-world images, very good compression
-levels can be obtained with no visible change, and amazingly high compression
-is possible if you can tolerate a low-quality image.  You can trade off image
-quality against file size by adjusting the compressor's "quality" setting.
-
-
-GENERAL USAGE
-
-We provide two programs, cjpeg to compress an image file into JPEG format,
-and djpeg to decompress a JPEG file back into a conventional image format.
-
-On Unix-like systems, you say:
-	cjpeg [switches] [imagefile] >jpegfile
-or
-	djpeg [switches] [jpegfile]  >imagefile
-The programs read the specified input file, or standard input if none is
-named.  They always write to standard output (with trace/error messages to
-standard error).  These conventions are handy for piping images between
-programs.
-
-On most non-Unix systems, you say:
-	cjpeg [switches] imagefile jpegfile
-or
-	djpeg [switches] jpegfile  imagefile
-i.e., both the input and output files are named on the command line.  This
-style is a little more foolproof, and it loses no functionality if you don't
-have pipes.  (You can get this style on Unix too, if you prefer, by defining
-TWO_FILE_COMMANDLINE when you compile the programs; see install.doc.)
-
-You can also say:
-	cjpeg [switches] -outfile jpegfile  imagefile
-or
-	djpeg [switches] -outfile imagefile  jpegfile
-This syntax works on all systems, so it is useful for scripts.
-
-The currently supported image file formats are: PPM (PBMPLUS color format),
-PGM (PBMPLUS gray-scale format), BMP, Targa, and RLE (Utah Raster Toolkit
-format).  (RLE is supported only if the URT library is available.)
-cjpeg recognizes the input image format automatically, with the exception
-of some Targa-format files.  You have to tell djpeg which format to generate.
-
-JPEG files are in the defacto standard JFIF file format.  There are other,
-less widely used JPEG-based file formats, but we don't support them.
-
-All switch names may be abbreviated; for example, -grayscale may be written
--gray or -gr.  Most of the "basic" switches can be abbreviated to as little as
-one letter.  Upper and lower case are equivalent (-BMP is the same as -bmp).
-British spellings are also accepted (e.g., -greyscale), though for brevity
-these are not mentioned below.
-
-
-CJPEG DETAILS
-
-The basic command line switches for cjpeg are:
-
-	-quality N	Scale quantization tables to adjust image quality.
-			Quality is 0 (worst) to 100 (best); default is 75.
-			(See below for more info.)
-
-	-grayscale	Create monochrome JPEG file from color input.
-			Be sure to use this switch when compressing a grayscale
-			BMP file, because cjpeg isn't bright enough to notice
-			whether a BMP file uses only shades of gray.  By
-			saying -grayscale, you'll get a smaller JPEG file that
-			takes less time to process.
-
-	-optimize	Perform optimization of entropy encoding parameters.
-			Without this, default encoding parameters are used.
-			-optimize usually makes the JPEG file a little smaller,
-			but cjpeg runs somewhat slower and needs much more
-			memory.  Image quality and speed of decompression are
-			unaffected by -optimize.
-
-	-progressive	Create progressive JPEG file (see below).
-
-	-targa		Input file is Targa format.  Targa files that contain
-			an "identification" field will not be automatically
-			recognized by cjpeg; for such files you must specify
-			-targa to make cjpeg treat the input as Targa format.
-			For most Targa files, you won't need this switch.
-
-The -quality switch lets you trade off compressed file size against quality of
-the reconstructed image: the higher the quality setting, the larger the JPEG
-file, and the closer the output image will be to the original input.  Normally
-you want to use the lowest quality setting (smallest file) that decompresses
-into something visually indistinguishable from the original image.  For this
-purpose the quality setting should be between 50 and 95; the default of 75 is
-often about right.  If you see defects at -quality 75, then go up 5 or 10
-counts at a time until you are happy with the output image.  (The optimal
-setting will vary from one image to another.)
-
--quality 100 will generate a quantization table of all 1's, minimizing loss
-in the quantization step (but there is still information loss in subsampling,
-as well as roundoff error).  This setting is mainly of interest for
-experimental purposes.  Quality values above about 95 are NOT recommended for
-normal use; the compressed file size goes up dramatically for hardly any gain
-in output image quality.
-
-In the other direction, quality values below 50 will produce very small files
-of low image quality.  Settings around 5 to 10 might be useful in preparing an
-index of a large image library, for example.  Try -quality 2 (or so) for some
-amusing Cubist effects.  (Note: quality values below about 25 generate 2-byte
-quantization tables, which are considered optional in the JPEG standard.
-cjpeg emits a warning message when you give such a quality value, because some
-other JPEG programs may be unable to decode the resulting file.  Use -baseline
-if you need to ensure compatibility at low quality values.)
-
-The -progressive switch creates a "progressive JPEG" file.  In this type of
-JPEG file, the data is stored in multiple scans of increasing quality.  If the
-file is being transmitted over a slow communications link, the decoder can use
-the first scan to display a low-quality image very tquickly, and can then
-improve the display with each subsequent scan.  The final image is exactly
-equivalent to a standard JPEG file of the same quality setting, and the total
-file size is about the same --- often a little smaller.  CAUTION: progressive
-JPEG is not yet widely implemented, so many decoders will be unable to view a
-progressive JPEG file at all.
-
-Switches for advanced users:
-
-	-dct int	Use integer DCT method (default).
-	-dct fast	Use fast integer DCT (less accurate).
-	-dct float	Use floating-point DCT method.
-			The float method is very slightly more accurate than
-			the int method, but is much slower unless your machine
-			has very fast floating-point hardware.  Also note that
-			results of the floating-point method may vary slightly
-			across machines, while the integer methods should give
-			the same results everywhere.  The fast integer method
-			is much less accurate than the other two.
-
-	-restart N	Emit a JPEG restart marker every N MCU rows, or every
-			N MCU blocks if "B" is attached to the number.
-			-restart 0 (the default) means no restart markers.
-
-	-smooth N	Smooth the input image to eliminate dithering noise.
-			N, ranging from 1 to 100, indicates the strength of
-			smoothing.  0 (the default) means no smoothing.
-
-	-maxmemory N	Set limit for amount of memory to use in processing
-			large images.  Value is in thousands of bytes, or
-			millions of bytes if "M" is attached to the number.
-			For example, -max 4m selects 4000000 bytes.  If more
-			space is needed, temporary files will be used.
-
-	-verbose	Enable debug printout.  More -v's give more printout.
-	or  -debug	Also, version information is printed at startup.
-
-The -restart option inserts extra markers that allow a JPEG decoder to
-resynchronize after a transmission error.  Without restart markers, any damage
-to a compressed file will usually ruin the image from the point of the error
-to the end of the image; with restart markers, the damage is usually confined
-to the portion of the image up to the next restart marker.  Of course, the
-restart markers occupy extra space.  We recommend -restart 1 for images that
-will be transmitted across unreliable networks such as Usenet.
-
-The -smooth option filters the input to eliminate fine-scale noise.  This is
-often useful when converting dithered images to JPEG: a moderate smoothing
-factor of 10 to 50 gets rid of dithering patterns in the input file, resulting
-in a smaller JPEG file and a better-looking image.  Too large a smoothing
-factor will visibly blur the image, however.
-
-Switches for wizards:
-
-	-baseline	Force baseline-compatible quantization tables to be
-			generated.  This clamps quantization values to 8 bits
-			even at low quality settings.  (This switch is poorly
-			named, since it does not ensure that the output is
-			actually baseline JPEG.  For example, you can use
-			-baseline and -progressive together.)
-
-	-qtables file	Use the quantization tables given in the specified
-			text file.
-
-	-qslots N[,...] Select which quantization table to use for each color
-			component.
-
-	-sample HxV[,...]  Set JPEG sampling factors for each color component.
-
-	-scans file	Use the scan script given in the specified text file.
-
-The "wizard" switches are intended for experimentation with JPEG.  If you
-don't know what you are doing, DON'T USE THEM.  These switches are documented
-further in the file wizard.doc.
-
-
-DJPEG DETAILS
-
-The basic command line switches for djpeg are:
-
-	-colors N	Reduce image to at most N colors.  This reduces the
-	or -quantize N	number of colors used in the output image, so that it
-			can be displayed on a colormapped display or stored in
-			a colormapped file format.  For example, if you have
-			an 8-bit display, you'd need to reduce to 256 or fewer
-			colors.  (-colors is the recommended name, -quantize
-			is provided only for backwards compatibility.)
-
-	-fast		Select recommended processing options for fast, low
-			quality output.  (The default options are chosen for
-			highest quality output.)  Currently, this is equivalent
-			to "-dct fast -nosmooth -onepass -dither ordered".
-
-	-grayscale	Force gray-scale output even if JPEG file is color.
-			Useful for viewing on monochrome displays; also,
-			djpeg runs noticeably faster in this mode.
-
-	-scale M/N	Scale the output image by a factor M/N.  Currently
-			the scale factor must be 1/1, 1/2, 1/4, or 1/8.
-			Scaling is handy if the image is larger than your
-			screen; also, djpeg runs much faster when scaling
-			down the output.
-
-	-bmp		Select BMP output format (Windows flavor).  8-bit
-			colormapped format is emitted if -colors or -grayscale
-			is specified, or if the JPEG file is gray-scale;
-			otherwise, 24-bit full-color format is emitted.
-
-	-gif		Select GIF output format.  Since GIF does not support
-			more than 256 colors, -colors 256 is assumed (unless
-			you specify a smaller number of colors).  If you
-			specify -fast, the default number of colors is 216.
-
-	-os2		Select BMP output format (OS/2 1.x flavor).  8-bit
-			colormapped format is emitted if -colors or -grayscale
-			is specified, or if the JPEG file is gray-scale;
-			otherwise, 24-bit full-color format is emitted.
-
-	-pnm		Select PBMPLUS (PPM/PGM) output format (this is the
-			default format).  PGM is emitted if the JPEG file is
-			gray-scale or if -grayscale is specified; otherwise
-			PPM is emitted.
-
-	-rle		Select RLE output format.  (Requires URT library.)
-
-	-targa		Select Targa output format.  Gray-scale format is
-			emitted if the JPEG file is gray-scale or if
-			-grayscale is specified; otherwise, colormapped format
-			is emitted if -colors is specified; otherwise, 24-bit
-			full-color format is emitted.
-
-Switches for advanced users:
-
-	-dct int	Use integer DCT method (default).
-	-dct fast	Use fast integer DCT (less accurate).
-	-dct float	Use floating-point DCT method.
-			The float method is very slightly more accurate than
-			the int method, but is much slower unless your machine
-			has very fast floating-point hardware.  Also note that
-			results of the floating-point method may vary slightly
-			across machines, while the integer methods should give
-			the same results everywhere.  The fast integer method
-			is much less accurate than the other two.
-
-	-dither fs	Use Floyd-Steinberg dithering in color quantization.
-	-dither ordered	Use ordered dithering in color quantization.
-	-dither none	Do not use dithering in color quantization.
-			By default, Floyd-Steinberg dithering is applied when
-			quantizing colors; this is slow but usually produces
-			the best results.  Ordered dither is a compromise
-			between speed and quality; no dithering is fast but
-			usually looks awful.  Note that these switches have
-			no effect unless color quantization is being done.
-			Ordered dither is only available in -onepass mode.
-
-	-map FILE	Quantize to the colors used in the specified image
-			file.  This is useful for producing multiple files
-			with identical color maps, or for forcing a predefined
-			set of colors to be used.  The FILE must be a GIF
-			or PPM file.  This option overrides -colors and
-			-onepass.
-
-	-nosmooth	Use a faster, lower-quality upsampling routine.
-
-	-onepass	Use one-pass instead of two-pass color quantization.
-			The one-pass method is faster and needs less memory,
-			but it produces a lower-quality image.  -onepass is
-			ignored unless you also say -colors N.  Also,
-			the one-pass method is always used for gray-scale
-			output (the two-pass method is no improvement then).
-
-	-maxmemory N	Set limit for amount of memory to use in processing
-			large images.  Value is in thousands of bytes, or
-			millions of bytes if "M" is attached to the number.
-			For example, -max 4m selects 4000000 bytes.  If more
-			space is needed, temporary files will be used.
-
-	-verbose	Enable debug printout.  More -v's give more printout.
-	or  -debug	Also, version information is printed at startup.
-
-
-HINTS FOR CJPEG
-
-Color GIF files are not the ideal input for JPEG; JPEG is really intended for
-compressing full-color (24-bit) images.  In particular, don't try to convert
-cartoons, line drawings, and other images that have only a few distinct
-colors.  GIF works great on these, JPEG does not.  If you want to convert a
-GIF to JPEG, you should experiment with cjpeg's -quality and -smooth options
-to get a satisfactory conversion.  -smooth 10 or so is often helpful.
-
-Avoid running an image through a series of JPEG compression/decompression
-cycles.  Image quality loss will accumulate; after ten or so cycles the image
-may be noticeably worse than it was after one cycle.  It's best to use a
-lossless format while manipulating an image, then convert to JPEG format when
-you are ready to file the image away.
-
-The -optimize option to cjpeg is worth using when you are making a "final"
-version for posting or archiving.  It's also a win when you are using low
-quality settings to make very small JPEG files; the percentage improvement
-is often a lot more than it is on larger files.  (At present, -optimize
-mode is always selected when generating progressive JPEG files.)
-
-GIF input files are no longer supported, to avoid the Unisys LZW patent.
-Use a Unisys-licensed program if you need to read a GIF file.  (Conversion
-of GIF files to JPEG is usually a bad idea anyway.)
-
-
-HINTS FOR DJPEG
-
-To get a tquick preview of an image, use the -grayscale and/or -scale switches.
-"-grayscale -scale 1/8" is the fastest case.
-
-Several options are available that trade off image quality to gain speed.
-"-fast" turns on the recommended settings.
-
-"-dct fast" and/or "-nosmooth" gain speed at a small sacrifice in quality.
-When producing a color-quantized image, "-onepass -dither ordered" is fast but
-much lower quality than the default behavior.  "-dither none" may give
-acceptable results in two-pass mode, but is seldom tolerable in one-pass mode.
-
-If you are fortunate enough to have very fast floating point hardware,
-"-dct float" may be even faster than "-dct fast".  But on most machines
-"-dct float" is slower than "-dct int"; in this case it is not worth using,
-because its theoretical accuracy advantage is too small to be significant
-in practice.
-
-Two-pass color quantization requires a good deal of memory; on MS-DOS machines
-it may run out of memory even with -maxmemory 0.  In that case you can still
-decompress, with some loss of image quality, by specifying -onepass for
-one-pass quantization.
-
-To avoid the Unisys LZW patent, djpeg produces uncompressed GIF files.  These
-are larger than they should be, but are readable by standard GIF decoders.
-
-
-HINTS FOR BOTH PROGRAMS
-
-If more space is needed than will fit in the available main memory (as
-determined by -maxmemory), temporary files will be used.  (MS-DOS versions
-will try to get extended or expanded memory first.)  The temporary files are
-often rather large: in typical cases they occupy three bytes per pixel, for
-example 3*800*600 = 1.44Mb for an 800x600 image.  If you don't have enough
-free disk space, leave out -progressive and -optimize (for cjpeg) or specify
--onepass (for djpeg).
-
-On MS-DOS, the temporary files are created in the directory named by the TMP
-or TEMP environment variable, or in the current directory if neither of those
-exist.  Amiga implementations put the temp files in the directory named by
-JPEGTMP:, so be sure to assign JPEGTMP: to a disk partition with adequate free
-space.
-
-The default memory usage limit (-maxmemory) is set when the software is
-compiled.  If you get an "insufficient memory" error, try specifying a smaller
--maxmemory value, even -maxmemory 0 to use the absolute minimum space.  You
-may want to recompile with a smaller default value if this happens often.
-
-On machines that have "environment" variables, you can define the environment
-variable JPEGMEM to set the default memory limit.  The value is specified as
-described for the -maxmemory switch.  JPEGMEM overrides the default value
-specified when the program was compiled, and itself is overridden by an
-explicit -maxmemory switch.
-
-On MS-DOS machines, -maxmemory is the amount of main (conventional) memory to
-use.  (Extended or expanded memory is also used if available.)  Most
-DOS-specific versions of this software do their own memory space estimation
-and do not need you to specify -maxmemory.
-
-
-JPEGTRAN
-
-jpegtran performs various useful transformations of JPEG files.
-It can translate the coded representation from one variant of JPEG to another,
-for example from baseline JPEG to progressive JPEG or vice versa.  It can also
-perform some rearrangements of the image data, for example turning an image
-from landscape to portrait format by rotation.
-
-jpegtran works by rearranging the compressed data (DCT coefficients), without
-ever fully decoding the image.  Therefore, its transformations are lossless:
-there is no image degradation at all, which would not be true if you used
-djpeg followed by cjpeg to accomplish the same conversion.  But by the same
-token, jpegtran cannot perform lossy operations such as changing the image
-quality.
-
-jpegtran uses a command line syntax similar to cjpeg or djpeg.
-On Unix-like systems, you say:
-	jpegtran [switches] [inputfile] >outputfile
-On most non-Unix systems, you say:
-	jpegtran [switches] inputfile outputfile
-where both the input and output files are JPEG files.
-
-To specify the coded JPEG representation used in the output file,
-jpegtran accepts a subset of the switches recognized by cjpeg:
-	-optimize	Perform optimization of entropy encoding parameters.
-	-progressive	Create progressive JPEG file.
-	-restart N	Emit a JPEG restart marker every N MCU rows, or every
-			N MCU blocks if "B" is attached to the number.
-	-scans file	Use the scan script given in the specified text file.
-See the previous discussion of cjpeg for more details about these switches.
-If you specify none of these switches, you get a plain baseline-JPEG output
-file.  The quality setting and so forth are determined by the input file.
-
-The image can be losslessly transformed by giving one of these switches:
-	-flip horizontal	Mirror image horizontally (left-right).
-	-flip vertical		Mirror image vertically (top-bottom).
-	-rotate 90		Rotate image 90 degrees clockwise.
-	-rotate 180		Rotate image 180 degrees.
-	-rotate 270		Rotate image 270 degrees clockwise (or 90 ccw).
-	-transpose		Transpose image (across UL-to-LR axis).
-	-transverse		Transverse transpose (across UR-to-LL axis).
-
-The transpose transformation has no restrictions regarding image dimensions.
-The other transformations operate rather oddly if the image dimensions are not
-a multiple of the iMCU size (usually 8 or 16 pixels), because they can only
-transform complete blocks of DCT coefficient data in the desired way.
-
-jpegtran's default behavior when transforming an odd-size image is designed
-to preserve exact reversibility and mathematical consistency of the
-transformation set.  As stated, transpose is able to flip the entire image
-area.  Horizontal mirroring leaves any partial iMCU column at the right edge
-untouched, but is able to flip all rows of the image.  Similarly, vertical
-mirroring leaves any partial iMCU row at the bottom edge untouched, but is
-able to flip all columns.  The other transforms can be built up as sequences
-of transpose and flip operations; for consistency, their actions on edge
-pixels are defined to be the same as the end result of the corresponding
-transpose-and-flip sequence.
-
-For practical use, you may prefer to discard any untransformable edge pixels
-rather than having a strange-looking strip along the right and/or bottom edges
-of a transformed image.  To do this, add the -trim switch:
-	-trim		Drop non-transformable edge blocks.
-Obviously, a transformation with -trim is not reversible, so strictly speaking
-jpegtran with this switch is not lossless.  Also, the expected mathematical
-equivalences between the transformations no longer hold.  For example,
-"-rot 270 -trim" trims only the bottom edge, but "-rot 90 -trim" followed by
-"-rot 180 -trim" trims both edges.
-
-Another not-strictly-lossless transformation switch is:
-	-grayscale	Force grayscale output.
-This option discards the chrominance channels if the input image is YCbCr
-(ie, a standard color JPEG), resulting in a grayscale JPEG file.  The
-luminance channel is preserved exactly, so this is a better method of reducing
-to grayscale than decompression, conversion, and recompression.  This switch
-is particularly handy for fixing a monochrome picture that was mistakenly
-encoded as a color JPEG.  (In such a case, the space savings from getting rid
-of the near-empty chroma channels won't be large; but the decoding time for
-a grayscale JPEG is substantially less than that for a color JPEG.)
-
-jpegtran also recognizes these switches that control what to do with "extra"
-markers, such as comment blocks:
-	-copy none	Copy no extra markers from source file.  This setting
-			suppresses all comments and other excess baggage
-			present in the source file.
-	-copy comments	Copy only comment markers.  This setting copies
-			comments from the source file, but discards
-			any other inessential data. 
-	-copy all	Copy all extra markers.  This setting preserves
-			miscellaneous markers found in the source file, such
-			as JFIF thumbnails and Photoshop settings.  In some
-			files these extra markers can be sizable.
-The default behavior is -copy comments.  (Note: in IJG releases v6 and v6a,
-jpegtran always did the equivalent of -copy none.)
-
-Additional switches recognized by jpegtran are:
-	-outfile filename
-	-maxmemory N
-	-verbose
-	-debug
-These work the same as in cjpeg or djpeg.
-
-
-THE COMMENT UTILITIES
-
-The JPEG standard allows "comment" (COM) blocks to occur within a JPEG file.
-Although the standard doesn't actually define what COM blocks are for, they
-are widely used to hold user-supplied text strings.  This lets you add
-annotations, titles, index terms, etc to your JPEG files, and later retrieve
-them as text.  COM blocks do not interfere with the image stored in the JPEG
-file.  The maximum size of a COM block is 64K, but you can have as many of
-them as you like in one JPEG file.
-
-We provide two utility programs to display COM block contents and add COM
-blocks to a JPEG file.
-
-rdjpgcom searches a JPEG file and prints the contents of any COM blocks on
-standard output.  The command line syntax is
-	rdjpgcom [-verbose] [inputfilename]
-The switch "-verbose" (or just "-v") causes rdjpgcom to also display the JPEG
-image dimensions.  If you omit the input file name from the command line,
-the JPEG file is read from standard input.  (This may not work on some
-operating systems, if binary data can't be read from stdin.)
-
-wrjpgcom adds a COM block, containing text you provide, to a JPEG file.
-Ordinarily, the COM block is added after any existing COM blocks, but you
-can delete the old COM blocks if you wish.  wrjpgcom produces a new JPEG
-file; it does not modify the input file.  DO NOT try to overwrite the input
-file by directing wrjpgcom's output back into it; on most systems this will
-just destroy your file.
-
-The command line syntax for wrjpgcom is similar to cjpeg's.  On Unix-like
-systems, it is
-	wrjpgcom [switches] [inputfilename]
-The output file is written to standard output.  The input file comes from
-the named file, or from standard input if no input file is named.
-
-On most non-Unix systems, the syntax is
-	wrjpgcom [switches] inputfilename outputfilename
-where both input and output file names must be given explicitly.
-
-wrjpgcom understands three switches:
-	-replace		 Delete any existing COM blocks from the file.
-	-comment "Comment text"	 Supply new COM text on command line.
-	-cfile name		 Read text for new COM block from named file.
-(Switch names can be abbreviated.)  If you have only one line of comment text
-to add, you can provide it on the command line with -comment.  The comment
-text must be surrounded with quotes so that it is treated as a single
-argument.  Longer comments can be read from a text file.
-
-If you give neither -comment nor -cfile, then wrjpgcom will read the comment
-text from standard input.  (In this case an input image file name MUST be
-supplied, so that the source JPEG file comes from somewhere else.)  You can
-enter multiple lines, up to 64KB worth.  Type an end-of-file indicator
-(usually control-D or control-Z) to terminate the comment text entry.
-
-wrjpgcom will not add a COM block if the provided comment string is empty.
-Therefore -replace -comment "" can be used to delete all COM blocks from a
-file.
-
-These utility programs do not depend on the IJG JPEG library.  In
-particular, the source code for rdjpgcom is intended as an illustration of
-the minimum amount of code required to parse a JPEG file header correctly.
diff --git a/src/3rdparty/libjpeg/wizard.doc b/src/3rdparty/libjpeg/wizard.doc
deleted file mode 100644
index 54170b227..000000000
--- a/src/3rdparty/libjpeg/wizard.doc
+++ /dev/null
@@ -1,211 +0,0 @@
-Advanced usage instructions for the Independent JPEG Group's JPEG software
-==========================================================================
-
-This file describes cjpeg's "switches for wizards".
-
-The "wizard" switches are intended for experimentation with JPEG by persons
-who are reasonably knowledgeable about the JPEG standard.  If you don't know
-what you are doing, DON'T USE THESE SWITCHES.  You'll likely produce files
-with worse image quality and/or poorer compression than you'd get from the
-default settings.  Furthermore, these switches must be used with caution
-when making files intended for general use, because not all JPEG decoders
-will support unusual JPEG parameter settings.
-
-
-Quantization Table Adjustment
------------------------------
-
-Ordinarily, cjpeg starts with a default set of tables (the same ones given
-as examples in the JPEG standard) and scales them up or down according to
-the -quality setting.  The details of the scaling algorithm can be found in
-jcparam.c.  At very low quality settings, some quantization table entries
-can get scaled up to values exceeding 255.  Although 2-byte quantization
-values are supported by the IJG software, this feature is not in baseline
-JPEG and is not supported by all implementations.  If you need to ensure
-wide compatibility of low-quality files, you can constrain the scaled
-quantization values to no more than 255 by giving the -baseline switch.
-Note that use of -baseline will result in poorer quality for the same file
-size, since more bits than necessary are expended on higher AC coefficients.
-
-You can substitute a different set of quantization values by using the
--qtables switch:
-
-	-qtables file	Use the quantization tables given in the named file.
-
-The specified file should be a text file containing decimal quantization
-values.  The file should contain one to four tables, each of 64 elements.
-The tables are implicitly numbered 0,1,etc. in order of appearance.  Table
-entries appear in normal array order (NOT in the zigzag order in which they
-will be stored in the JPEG file).
-
-Quantization table files are free format, in that arbitrary whitespace can
-appear between numbers.  Also, comments can be included: a comment starts
-with '#' and extends to the end of the line.  Here is an example file that
-duplicates the default quantization tables:
-
-	# Quantization tables given in JPEG spec, section K.1
-
-	# This is table 0 (the luminance table):
-	  16  11  10  16  24  40  51  61
-	  12  12  14  19  26  58  60  55
-	  14  13  16  24  40  57  69  56
-	  14  17  22  29  51  87  80  62
-	  18  22  37  56  68 109 103  77
-	  24  35  55  64  81 104 113  92
-	  49  64  78  87 103 121 120 101
-	  72  92  95  98 112 100 103  99
-
-	# This is table 1 (the chrominance table):
-	  17  18  24  47  99  99  99  99
-	  18  21  26  66  99  99  99  99
-	  24  26  56  99  99  99  99  99
-	  47  66  99  99  99  99  99  99
-	  99  99  99  99  99  99  99  99
-	  99  99  99  99  99  99  99  99
-	  99  99  99  99  99  99  99  99
-	  99  99  99  99  99  99  99  99
-
-If the -qtables switch is used without -quality, then the specified tables
-are used exactly as-is.  If both -qtables and -quality are used, then the
-tables taken from the file are scaled in the same fashion that the default
-tables would be scaled for that quality setting.  If -baseline appears, then
-the quantization values are constrained to the range 1-255.
-
-By default, cjpeg will use quantization table 0 for luminance components and
-table 1 for chrominance components.  To override this choice, use the -qslots
-switch:
-
-	-qslots N[,...]		Select which quantization table to use for
-				each color component.
-
-The -qslots switch specifies a quantization table number for each color
-component, in the order in which the components appear in the JPEG SOF marker.
-For example, to create a separate table for each of Y,Cb,Cr, you could
-provide a -qtables file that defines three quantization tables and say
-"-qslots 0,1,2".  If -qslots gives fewer table numbers than there are color
-components, then the last table number is repeated as necessary.
-
-
-Sampling Factor Adjustment
---------------------------
-
-By default, cjpeg uses 2:1 horizontal and vertical downsampling when
-compressing YCbCr data, and no downsampling for all other color spaces.
-You can override this default with the -sample switch:
-
-	-sample HxV[,...]	Set JPEG sampling factors for each color
-				component.
-
-The -sample switch specifies the JPEG sampling factors for each color
-component, in the order in which they appear in the JPEG SOF marker.
-If you specify fewer HxV pairs than there are components, the remaining
-components are set to 1x1 sampling.  For example, the default YCbCr setting
-is equivalent to "-sample 2x2,1x1,1x1", which can be abbreviated to
-"-sample 2x2".
-
-There are still some JPEG decoders in existence that support only 2x1
-sampling (also called 4:2:2 sampling).  Compatibility with such decoders can
-be achieved by specifying "-sample 2x1".  This is not recommended unless
-really necessary, since it increases file size and encoding/decoding time
-with very little quality gain.
-
-
-Multiple Scan / Progression Control
------------------------------------
-
-By default, cjpeg emits a single-scan sequential JPEG file.  The
--progressive switch generates a progressive JPEG file using a default series
-of progression parameters.  You can create multiple-scan sequential JPEG
-files or progressive JPEG files with custom progression parameters by using
-the -scans switch:
-
-	-scans file	Use the scan sequence given in the named file.
-
-The specified file should be a text file containing a "scan script".
-The script specifies the contents and ordering of the scans to be emitted.
-Each entry in the script defines one scan.  A scan definition specifies
-the components to be included in the scan, and for progressive JPEG it also
-specifies the progression parameters Ss,Se,Ah,Al for the scan.  Scan
-definitions are separated by semicolons (';').  A semicolon after the last
-scan definition is optional.
-
-Each scan definition contains one to four component indexes, optionally
-followed by a colon (':') and the four progressive-JPEG parameters.  The
-component indexes denote which color component(s) are to be transmitted in
-the scan.  Components are numbered in the order in which they appear in the
-JPEG SOF marker, with the first component being numbered 0.  (Note that these
-indexes are not the "component ID" codes assigned to the components, just
-positional indexes.)
-
-The progression parameters for each scan are:
-	Ss	Zigzag index of first coefficient included in scan
-	Se	Zigzag index of last coefficient included in scan
-	Ah	Zero for first scan of a coefficient, else Al of prior scan
-	Al	Successive approximation low bit position for scan
-If the progression parameters are omitted, the values 0,63,0,0 are used,
-producing a sequential JPEG file.  cjpeg automatically determines whether
-the script represents a progressive or sequential file, by observing whether
-Ss and Se values other than 0 and 63 appear.  (The -progressive switch is
-not needed to specify this; in fact, it is ignored when -scans appears.)
-The scan script must meet the JPEG restrictions on progression sequences.
-(cjpeg checks that the spec's requirements are obeyed.)
-
-Scan script files are free format, in that arbitrary whitespace can appear
-between numbers and around punctuation.  Also, comments can be included: a
-comment starts with '#' and extends to the end of the line.  For additional
-legibility, commas or dashes can be placed between values.  (Actually, any
-single punctuation character other than ':' or ';' can be inserted.)  For
-example, the following two scan definitions are equivalent:
-	0 1 2: 0 63 0 0;
-	0,1,2 : 0-63, 0,0 ;
-
-Here is an example of a scan script that generates a partially interleaved
-sequential JPEG file:
-
-	0;			# Y only in first scan
-	1 2;			# Cb and Cr in second scan
-
-Here is an example of a progressive scan script using only spectral selection
-(no successive approximation):
-
-	# Interleaved DC scan for Y,Cb,Cr:
-	0,1,2: 0-0,   0, 0 ;
-	# AC scans:
-	0:     1-2,   0, 0 ;	# First two Y AC coefficients
-	0:     3-5,   0, 0 ;	# Three more
-	1:     1-63,  0, 0 ;	# All AC coefficients for Cb
-	2:     1-63,  0, 0 ;	# All AC coefficients for Cr
-	0:     6-9,   0, 0 ;	# More Y coefficients
-	0:     10-63, 0, 0 ;	# Remaining Y coefficients
-
-Here is an example of a successive-approximation script.  This is equivalent
-to the default script used by "cjpeg -progressive" for YCbCr images:
-
-	# Initial DC scan for Y,Cb,Cr (lowest bit not sent)
-	0,1,2: 0-0,   0, 1 ;
-	# First AC scan: send first 5 Y AC coefficients, minus 2 lowest bits:
-	0:     1-5,   0, 2 ;
-	# Send all Cr,Cb AC coefficients, minus lowest bit:
-	# (chroma data is usually too small to be worth subdividing further;
-	#  but note we send Cr first since eye is least sensitive to Cb)
-	2:     1-63,  0, 1 ;
-	1:     1-63,  0, 1 ;
-	# Send remaining Y AC coefficients, minus 2 lowest bits:
-	0:     6-63,  0, 2 ;
-	# Send next-to-lowest bit of all Y AC coefficients:
-	0:     1-63,  2, 1 ;
-	# At this point we've sent all but the lowest bit of all coefficients.
-	# Send lowest bit of DC coefficients
-	0,1,2: 0-0,   1, 0 ;
-	# Send lowest bit of AC coefficients
-	2:     1-63,  1, 0 ;
-	1:     1-63,  1, 0 ;
-	# Y AC lowest bit scan is last; it's usually the largest scan
-	0:     1-63,  1, 0 ;
-
-It may be worth pointing out that this script is tuned for quality settings
-of around 50 to 75.  For lower quality settings, you'd probably want to use
-a script with fewer stages of successive approximation (otherwise the
-initial scans will be really bad).  For higher quality settings, you might
-want to use more stages of successive approximation (so that the initial
-scans are not too large).