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author | tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2010-02-24 17:43:19 +0000 |
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committer | tpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2010-02-24 17:43:19 +0000 |
commit | 0292059f4a16434600564cfa3f0ad2309a508a54 (patch) | |
tree | d95953cd53011917c4df679b96aedca39401b54f /kernel/kls_ljpeg/ljpeg2ppm/io.h | |
download | libksquirrel-0292059f4a16434600564cfa3f0ad2309a508a54.tar.gz libksquirrel-0292059f4a16434600564cfa3f0ad2309a508a54.zip |
Added libksquirrel for KDE3
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/libraries/libksquirrel@1095624 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'kernel/kls_ljpeg/ljpeg2ppm/io.h')
-rw-r--r-- | kernel/kls_ljpeg/ljpeg2ppm/io.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/kernel/kls_ljpeg/ljpeg2ppm/io.h b/kernel/kls_ljpeg/ljpeg2ppm/io.h new file mode 100644 index 0000000..65d9636 --- /dev/null +++ b/kernel/kls_ljpeg/ljpeg2ppm/io.h @@ -0,0 +1,105 @@ +/* + * Copyright (C) 1991, 1992, Thomas G. Lane. + * Part of the Independent JPEG Group's software. + * See the file Copyright for more details. + * + * Copyright (c) 1993 Brian C. Smith, The Regents of the University + * of California + * All rights reserved. + * + * Copyright (c) 1994 Kongji Huang and Brian C. Smith. + * Cornell University + * All rights reserved. + * + * Permission to use, copy, modify, and distribute this software and its + * documentation for any purpose, without fee, and without written agreement is + * hereby granted, provided that the above copyright notice and the following + * two paragraphs appear in all copies of this software. + * + * IN NO EVENT SHALL CORNELL UNIVERSITY BE LIABLE TO ANY PARTY FOR + * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT + * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF CORNELL + * UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * CORNELL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS + * ON AN "AS IS" BASIS, AND CORNELL UNIVERSITY HAS NO OBLIGATION TO + * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. + */ + +#ifndef _IO +#define _IO + +/* + * Size of the input and output buffer + */ +#define JPEG_BUF_SIZE 4096 + +/* + * The following variables keep track of the input and output + * buffer for the JPEG data. + */ +extern char outputBuffer[JPEG_BUF_SIZE]; /* output buffer */ +extern int numOutputBytes; /* bytes in the output buffer */ +extern Uchar inputBuffer[JPEG_BUF_SIZE]; /* Input buffer for JPEG data */ +extern int numInputBytes; /* bytes in inputBuffer */ +extern int maxInputBytes; /* Size of inputBuffer */ +extern int inputBufferOffset; /* Offset of current byte */ + +/* + * the output file pointer. + */ +extern FILE *outFile; + +/* + *-------------------------------------------------------------- + * + * EmitByte -- + * + * Write a single byte out to the output buffer, and + * flush if it's full. + * + * Results: + * None. + * + * Side effects: + * The outp[ut buffer may get flushed. + * + *-------------------------------------------------------------- + */ +#define EmitByte(val) { \ + if (numOutputBytes >= JPEG_BUF_SIZE) { \ + FlushBytes(); \ + } \ + outputBuffer[numOutputBytes++] = (char)(val); \ +} + +/* + *-------------------------------------------------------------- + * + * GetJpegChar, UnGetJpegChar -- + * + * Macros to get the next character from the input stream. + * + * Results: + * GetJpegChar returns the next character in the stream, or EOF + * UnGetJpegChar returns nothing. + * + * Side effects: + * A byte is consumed or put back into the inputBuffer. + * + *-------------------------------------------------------------- + */ +#define GetJpegChar() \ + ((inputBufferOffset < numInputBytes)? \ + inputBuffer[inputBufferOffset++]: \ + (numInputBytes = 2+ReadJpegData(inputBuffer+2,JPEG_BUF_SIZE-2), \ + inputBufferOffset = 2, \ + ((inputBufferOffset < numInputBytes)? \ + inputBuffer[inputBufferOffset++]: \ + EOF))) + +#define UnGetJpegChar(ch) (inputBuffer[--inputBufferOffset]=(ch)) + +#endif /* _IO */ |