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Diffstat (limited to 'src/3rdparty/libmng/libmng_data.h')
| -rw-r--r-- | src/3rdparty/libmng/libmng_data.h | 768 |
1 files changed, 768 insertions, 0 deletions
diff --git a/src/3rdparty/libmng/libmng_data.h b/src/3rdparty/libmng/libmng_data.h new file mode 100644 index 000000000..28c3a1dfe --- /dev/null +++ b/src/3rdparty/libmng/libmng_data.h @@ -0,0 +1,768 @@ +/* ************************************************************************** */ +/* * For conditions of distribution and use, * */ +/* * see copyright notice in libmng.h * */ +/* ************************************************************************** */ +/* * * */ +/* * project : libmng * */ +/* * file : libmng_data.h copyright (c) 2000 G.Juyn * */ +/* * version : 1.0.2 * */ +/* * * */ +/* * purpose : main data structure definition * */ +/* * * */ +/* * author : G.Juyn * */ +/* * web : http://www.3-t.com * */ +/* * email : mailto:info@3-t.com * */ +/* * * */ +/* * comment : Definition of the library main data structure * */ +/* * * */ +/* * changes : 0.5.1 - 05/04/2000 - G.Juyn * */ +/* * - added CRC table to main structure (for thread-safety) * */ +/* * 0.5.1 - 05/06/2000 - G.Juyn * */ +/* * - added iPLTEentries for checking hIST-length * */ +/* * 0.5.1 - 05/08/2000 - G.Juyn * */ +/* * - changed palette definition to exported palette-type * */ +/* * - removed frozen indicator * */ +/* * - added create/write indicators * */ +/* * - changed strict-ANSI stuff * */ +/* * 0.5.1 - 05/13/2000 - G.Juyn * */ +/* * - added eMNGma hack (will be removed in 1.0.0 !!!) * */ +/* * - added TERM animation object pointer (easier reference) * */ +/* * - added saved-data structure for SAVE/SEEK processing * */ +/* * * */ +/* * 0.5.2 - 05/18/2000 - G.Juyn * */ +/* * - added fields for JNG support (IJG-based) * */ +/* * 0.5.2 - 05/24/2000 - G.Juyn * */ +/* * - changed global tRNS definition * */ +/* * 0.5.2 - 05/30/2000 - G.Juyn * */ +/* * - added delta-image fields * */ +/* * 0.5.2 - 06/01/2000 - G.Juyn * */ +/* * - added internal delta-image processing callbacks * */ +/* * 0.5.2 - 06/02/2000 - G.Juyn * */ +/* * - changed SWAP_ENDIAN to BIGENDIAN_SUPPORTED * */ +/* * (contributed by Tim Rowley) * */ +/* * - added getalphaline callback for RGB8_A8 canvasstyle * */ +/* * 0.5.2 - 06/06/2000 - G.Juyn * */ +/* * - added parameter for delayed buffer-processing * */ +/* * * */ +/* * 0.5.3 - 06/16/2000 - G.Juyn * */ +/* * - added update-region parms for refresh calback * */ +/* * - added Needrefresh parameter * */ +/* * 0.5.3 - 06/17/2000 - G.Juyn * */ +/* * - added Deltaimmediate parm for faster delta-processing * */ +/* * 0.5.3 - 06/21/2000 - G.Juyn * */ +/* * - added Speed parameter to facilitate testing * */ +/* * - added Imagelevel parameter for processtext callback * */ +/* * 0.5.3 - 06/26/2000 - G.Juyn * */ +/* * - changed userdata variable to mng_ptr * */ +/* * * */ +/* * 0.9.1 - 07/07/2000 - G.Juyn * */ +/* * - added variables for go_xxxx processing * */ +/* * 0.9.1 - 07/08/2000 - G.Juyn * */ +/* * - added variables for improved timing support * */ +/* * 0.9.1 - 07/15/2000 - G.Juyn * */ +/* * - added callbacks for SAVE/SEEK processing * */ +/* * - added variable for NEEDSECTIONWAIT breaks * */ +/* * - added variable for freeze & reset processing * */ +/* * 0.9.1 - 07/17/2000 - G.Juyn * */ +/* * - fixed suspension-buffering for 32K+ chunks * */ +/* * * */ +/* * 0.9.2 - 07/29/2000 - G.Juyn * */ +/* * - removed Nextbackxxx fields (no longer used) * */ +/* * 0.9.2 - 07/31/2000 - G.Juyn * */ +/* * - fixed wrapping of suspension parameters * */ +/* * 0.9.2 - 08/04/2000 - G.Juyn * */ +/* * - B111096 - fixed large-buffer read-suspension * */ +/* * 0.9.2 - 08/05/2000 - G.Juyn * */ +/* * - changed file-prefixes * */ +/* * * */ +/* * 0.9.3 - 08/26/2000 - G.Juyn * */ +/* * - added MAGN chunk * */ +/* * 0.9.3 - 09/07/2000 - G.Juyn * */ +/* * - added support for new filter_types * */ +/* * 0.9.3 - 09/10/2000 - G.Juyn * */ +/* * - fixed DEFI behavior * */ +/* * 0.9.3 - 10/10/2000 - G.Juyn * */ +/* * - added support for alpha-depth prediction * */ +/* * 0.9.3 - 10/11/2000 - G.Juyn * */ +/* * - added support for nEED * */ +/* * 0.9.3 - 10/16/2000 - G.Juyn * */ +/* * - added optional support for bKGD for PNG images * */ +/* * - added support for JDAA * */ +/* * 0.9.3 - 10/17/2000 - G.Juyn * */ +/* * - added callback to process non-critical unknown chunks * */ +/* * - fixed support for bKGD * */ +/* * 0.9.3 - 10/19/2000 - G.Juyn * */ +/* * - implemented delayed delta-processing * */ +/* * 0.9.4 - 12/16/2000 - G.Juyn * */ +/* * - fixed mixup of data- & function-pointers (thanks Dimitri)* */ +/* * * */ +/* * 1.0.1 - 02/08/2001 - G.Juyn * */ +/* * - added MEND processing callback * */ +/* * 1.0.1 - 02/13/2001 - G.Juyn * */ +/* * - fixed first FRAM_MODE=4 timing problem * */ +/* * * */ +/* * 1.0.2 - 06/23/2001 - G.Juyn * */ +/* * - added optimization option for MNG-video playback * */ +/* * - added processterm callback * */ +/* * 1.0.2 - 06/25/2001 - G.Juyn * */ +/* * - added option to turn off progressive refresh * */ +/* * * */ +/* ************************************************************************** */ + +#if defined(__BORLANDC__) && defined(MNG_STRICT_ANSI) +#pragma option -A /* force ANSI-C */ +#endif + +#ifndef _libmng_data_h_ +#define _libmng_data_h_ + +/* ************************************************************************** */ + +#define MNG_MAGIC 0x52530a0aL + +/* ************************************************************************** */ +/* * * */ +/* * Internal structures * */ +/* * * */ +/* ************************************************************************** */ + +typedef mng_palette8 mng_rgbpaltab; + +/* ************************************************************************** */ +/* * * */ +/* * The saved_data structure * */ +/* * * */ +/* * This contains the saved data after a SAVE chunk has been processed. * */ +/* * The data is saved from the main data structure during SAVE processing, * */ +/* * and restored to the main data structure during SEEK processing. * */ +/* * * */ +/* ************************************************************************** */ + +typedef struct mng_savedata_struct { + +#if defined(MNG_SUPPORT_READ) || defined(MNG_SUPPORT_WRITE) + mng_bool bHasglobalPLTE; /* global PLTE chunk processed */ + mng_bool bHasglobalTRNS; /* global tRNS chunk processed */ + mng_bool bHasglobalGAMA; /* global gAMA chunk processed */ + mng_bool bHasglobalCHRM; /* global cHRM chunk processed */ + mng_bool bHasglobalSRGB; /* global sRGB chunk processed */ + mng_bool bHasglobalICCP; /* global iCCP chunk processed */ + mng_bool bHasglobalBKGD; /* global bKGD chunk processed */ +#endif /* MNG_SUPPORT_READ || MNG_SUPPORT_WRITE */ + +#ifdef MNG_SUPPORT_DISPLAY + mng_uint16 iBACKred; /* BACK fields */ + mng_uint16 iBACKgreen; + mng_uint16 iBACKblue; + mng_uint8 iBACKmandatory; + mng_uint16 iBACKimageid; + mng_uint8 iBACKtile; + + mng_uint8 iFRAMmode; /* FRAM fields (global) */ + mng_uint32 iFRAMdelay; + mng_uint32 iFRAMtimeout; + mng_bool bFRAMclipping; + mng_int32 iFRAMclipl; + mng_int32 iFRAMclipr; + mng_int32 iFRAMclipt; + mng_int32 iFRAMclipb; + + mng_uint32 iGlobalPLTEcount; /* global PLTE fields */ + mng_rgbpaltab aGlobalPLTEentries; + + mng_uint32 iGlobalTRNSrawlen; /* global tRNS fields */ + mng_uint8arr aGlobalTRNSrawdata; + + mng_uint32 iGlobalGamma; /* global gAMA fields */ + + mng_uint32 iGlobalWhitepointx; /* global cHRM fields */ + mng_uint32 iGlobalWhitepointy; + mng_uint32 iGlobalPrimaryredx; + mng_uint32 iGlobalPrimaryredy; + mng_uint32 iGlobalPrimarygreenx; + mng_uint32 iGlobalPrimarygreeny; + mng_uint32 iGlobalPrimarybluex; + mng_uint32 iGlobalPrimarybluey; + + mng_uint8 iGlobalRendintent; /* global sRGB fields */ + + mng_uint32 iGlobalProfilesize; /* global iCCP fields */ + mng_ptr pGlobalProfile; + + mng_uint16 iGlobalBKGDred; /* global bKGD fields */ + mng_uint16 iGlobalBKGDgreen; + mng_uint16 iGlobalBKGDblue; +#endif /* MNG_SUPPORT_DISPLAY */ + + } mng_savedata; + +typedef mng_savedata * mng_savedatap; + +/* ************************************************************************** */ +/* * * */ +/* * The main libmng data structure * */ +/* * * */ +/* * The handle used in all functions points to this structure which * */ +/* * contains all volatile data necessary to process the network graphic. * */ +/* * * */ +/* ************************************************************************** */ + +typedef struct mng_data_struct { + + mng_uint32 iMagic; /* magic number to validate + a given handle */ + mng_ptr pUserdata; /* application workdata */ + + mng_imgtype eSigtype; /* image information */ + mng_imgtype eImagetype; /* initially zeroed */ + mng_uint32 iWidth; /* filled after header is processed */ + mng_uint32 iHeight; + mng_uint32 iTicks; /* these only after MHDR */ + mng_uint32 iLayercount; + mng_uint32 iFramecount; + mng_uint32 iPlaytime; + mng_uint32 iSimplicity; + mng_uint8 iAlphadepth; /* indicates expected alpha-depth */ + + mng_uint32 iImagelevel; /* level an image inside a stream */ + + mng_uint32 iCanvasstyle; /* layout of the drawing-canvas */ + mng_uint32 iBkgdstyle; /* layout of the background-canvas */ + + mng_int8 iMagnify; /* magnification factor (not used yet) */ + mng_uint32 iOffsetx; /* x-offset for extremely large image */ + mng_uint32 iOffsety; /* y-offset for extremely large image */ + mng_uint32 iCanvaswidth; /* real canvas size */ + mng_uint32 iCanvasheight; /* must be set by processheader callback */ + + mng_uint16 iBGred; /* default background color */ + mng_uint16 iBGgreen; /* initially "black" */ + mng_uint16 iBGblue; + mng_bool bUseBKGD; /* preferred use of bKGD for PNG */ + + mng_bool bIssRGB; /* indicates sRGB system */ + +#ifdef MNG_FULL_CMS /* little CMS variables */ + mng_cmsprof hProf1; /* image input profile */ + mng_cmsprof hProf2; /* default output profile */ + mng_cmsprof hProf3; /* default sRGB profile */ + mng_cmstrans hTrans; /* current transformation handle */ +#endif + + mng_float dViewgamma; /* gamma calculation variables */ + mng_float dDisplaygamma; /* initially set for sRGB conditions */ + mng_float dDfltimggamma; + + mng_bool bStorechunks; /* switch for storing chunkdata */ + mng_bool bSectionbreaks; /* indicate NEEDSECTIONWAIT breaks */ + mng_bool bCacheplayback; /* switch to cache playback info */ + mng_bool bDoProgressive; /* progressive refresh for large images */ + + mng_speedtype iSpeed; /* speed-modifier for animations */ + + mng_uint32 iMaxwidth; /* maximum canvas size */ + mng_uint32 iMaxheight; /* initially set to 1024 x 1024 */ + + mng_int32 iErrorcode; /* error reporting fields */ + mng_int8 iSeverity; + mng_int32 iErrorx1; + mng_int32 iErrorx2; + mng_pchar zErrortext; + + mng_memalloc fMemalloc; /* callback pointers */ + mng_memfree fMemfree; /* initially nulled */ + mng_openstream fOpenstream; + mng_closestream fClosestream; + mng_readdata fReaddata; + mng_writedata fWritedata; + mng_errorproc fErrorproc; + mng_traceproc fTraceproc; + mng_processheader fProcessheader; + mng_processtext fProcesstext; + mng_processsave fProcesssave; + mng_processseek fProcessseek; + mng_processneed fProcessneed; + mng_processmend fProcessmend; + mng_processunknown fProcessunknown; + mng_processterm fProcessterm; + mng_getcanvasline fGetcanvasline; + mng_getbkgdline fGetbkgdline; + mng_getalphaline fGetalphaline; + mng_refresh fRefresh; + mng_gettickcount fGettickcount; + mng_settimer fSettimer; + mng_processgamma fProcessgamma; + mng_processchroma fProcesschroma; + mng_processsrgb fProcesssrgb; + mng_processiccp fProcessiccp; + mng_processarow fProcessarow; + +#if defined(MNG_SUPPORT_READ) || defined(MNG_SUPPORT_WRITE) + mng_bool bPreDraft48; /* flags ancient style draft */ + + mng_chunkid iChunkname; /* read/write-state variables */ + mng_uint32 iChunkseq; + mng_chunkp pFirstchunk; /* double-linked list of */ + mng_chunkp pLastchunk; /* stored chunk-structures */ + + mng_bool bHasheader; /* first header chunk processed */ + mng_bool bHasMHDR; /* inside a MHDR-MEND sequence */ + mng_bool bHasIHDR; /* inside a IHDR-IEND sequence */ + mng_bool bHasBASI; /* inside a BASI-IEND sequence */ + mng_bool bHasDHDR; /* inside a DHDR-IEND sequence */ +#ifdef MNG_INCLUDE_JNG + mng_bool bHasJHDR; /* inside a JHDR-IEND sequence */ + mng_bool bHasJSEP; /* passed the JSEP separator */ + mng_bool bHasJDAA; /* at least 1 JDAA processed */ + mng_bool bHasJDAT; /* at least 1 JDAT processed */ +#endif + mng_bool bHasPLTE; /* PLTE chunk processed */ + mng_bool bHasTRNS; /* tRNS chunk processed */ + mng_bool bHasGAMA; /* gAMA chunk processed */ + mng_bool bHasCHRM; /* cHRM chunk processed */ + mng_bool bHasSRGB; /* sRGB chunk processed */ + mng_bool bHasICCP; /* iCCP chunk processed */ + mng_bool bHasBKGD; /* bKGD chunk processed */ + mng_bool bHasIDAT; /* at least 1 IDAT processed */ + + mng_bool bHasSAVE; /* SAVE chunk processed */ + mng_bool bHasBACK; /* BACK chunk processed */ + mng_bool bHasFRAM; /* FRAM chunk processed */ + mng_bool bHasTERM; /* TERM chunk processed */ + mng_bool bHasLOOP; /* at least 1 LOOP open */ + + mng_bool bHasglobalPLTE; /* global PLTE chunk processed */ + mng_bool bHasglobalTRNS; /* global tRNS chunk processed */ + mng_bool bHasglobalGAMA; /* global gAMA chunk processed */ + mng_bool bHasglobalCHRM; /* global cHRM chunk processed */ + mng_bool bHasglobalSRGB; /* global sRGB chunk processed */ + mng_bool bHasglobalICCP; /* global iCCP chunk processed */ + mng_bool bHasglobalBKGD; /* global bKGD chunk processed */ + + mng_uint32 iDatawidth; /* IHDR/BASI/DHDR fields */ + mng_uint32 iDataheight; /* valid if inside IHDR-IEND, */ + mng_uint8 iBitdepth; /* BASI-IEND or DHDR-IEND */ + mng_uint8 iColortype; + mng_uint8 iCompression; + mng_uint8 iFilter; + mng_uint8 iInterlace; + + mng_uint32 iPLTEcount; /* PLTE fields */ + + mng_bool bEMNGMAhack; /* TODO: to be removed in 1.0.0 !!! */ + +#ifdef MNG_INCLUDE_JNG + mng_uint8 iJHDRcolortype; /* JHDR fields */ + mng_uint8 iJHDRimgbitdepth; /* valid if inside JHDR-IEND */ + mng_uint8 iJHDRimgcompression; + mng_uint8 iJHDRimginterlace; + mng_uint8 iJHDRalphabitdepth; + mng_uint8 iJHDRalphacompression; + mng_uint8 iJHDRalphafilter; + mng_uint8 iJHDRalphainterlace; +#endif + +#endif /* MNG_SUPPORT_READ || MNG_SUPPORT_WRITE */ + +#ifdef MNG_SUPPORT_READ + mng_bool bReading; /* read processing variables */ + mng_bool bHavesig; + mng_bool bEOF; + mng_uint32 iReadbufsize; + mng_uint8p pReadbuf; + + mng_uint32 iLargebufsize; /* temp for very large chunks */ + mng_uint8p pLargebuf; + + mng_uint32 iSuspendtime; /* tickcount at last suspension */ + mng_bool bSuspended; /* input-reading has been suspended; + we're expecting a call to + mng_read_resume! */ + mng_uint8 iSuspendpoint; /* indicates at which point the flow + was broken to suspend input-reading */ + + mng_bool bSuspensionmode; /* I/O-suspension variables */ + mng_uint32 iSuspendbufsize; + mng_uint8p pSuspendbuf; + mng_uint8p pSuspendbufnext; + mng_uint32 iSuspendbufleft; + mng_uint32 iChunklen; /* chunk length */ + mng_uint8p pReadbufnext; /* 32K+ suspension-processing */ +#endif /* MNG_SUPPORT_READ */ + +#ifdef MNG_SUPPORT_WRITE + mng_bool bCreating; /* create/write processing variables */ + mng_bool bWriting; + mng_chunkid iFirstchunkadded; + mng_uint32 iWritebufsize; + mng_uint8p pWritebuf; +#endif + +#ifdef MNG_SUPPORT_DISPLAY + mng_bool bDisplaying; /* display-state variables */ + mng_bool bFramedone; + mng_uint32 iFrameseq; + mng_uint32 iLayerseq; + mng_uint32 iFrametime; /* millisecs */ + + mng_uint32 iRequestframe; /* go_xxxx variables */ + mng_uint32 iRequestlayer; + mng_uint32 iRequesttime; + mng_bool bSearching; + + mng_bool bRestorebkgd; /* flags restore retquired before IDAT/JDAT */ + + mng_uint32 iRuntime; /* millisecs since start */ + mng_uint32 iSynctime; /* tickcount at last framesync */ + mng_uint32 iStarttime; /* tickcount at start */ + mng_uint32 iEndtime; /* tickcount at end */ + mng_bool bRunning; /* animation is active */ + mng_bool bTimerset; /* the timer has been set; + we're expecting a call to + mng_display_resume! */ + mng_uint8 iBreakpoint; /* indicates at which point the + flow was broken to run the timer */ + mng_bool bSectionwait; /* indicates a section break */ + mng_bool bFreezing; /* indicates app requested a freeze */ + mng_bool bResetting; /* indicates app requested a reset */ + mng_bool bNeedrefresh; /* indicates screen-refresh is needed */ + mng_objectp pCurrentobj; /* current "object" */ + mng_objectp pCurraniobj; /* current animation object + "to be"/"being" processed */ + mng_objectp pTermaniobj; /* TERM animation object */ + mng_uint32 iIterations; /* TERM/MEND iteration count */ + mng_objectp pObjzero; /* "on-the-fly" image (object = 0) */ + mng_objectp pLastclone; /* last clone */ + mng_objectp pStoreobj; /* current store object for row routines */ + mng_objectp pStorebuf; /* current store object-buffer for row routines */ + mng_objectp pRetrieveobj; /* current retrieve object for row routines */ + mng_savedatap pSavedata; /* pointer to saved data (after SAVE) */ + + mng_uint32 iUpdateleft; /* update region for refresh */ + mng_uint32 iUpdateright; + mng_uint32 iUpdatetop; + mng_uint32 iUpdatebottom; + + mng_int8 iPass; /* current interlacing pass; + negative value means no interlace */ + mng_int32 iRow; /* current row counter */ + mng_int32 iRowinc; /* row increment for this pass */ + mng_int32 iCol; /* current starting column */ + mng_int32 iColinc; /* column increment for this pass */ + mng_int32 iRowsamples; /* nr. of samples in current workrow */ + mng_int32 iSamplemul; /* needed to calculate rowsize */ + mng_int32 iSampleofs; /* from rowsamples */ + mng_int32 iSamplediv; + mng_int32 iRowsize; /* size of actual data in work row */ + mng_int32 iRowmax; /* maximum size of data in work row */ + mng_int32 iFilterofs; /* offset to filter-byte in work row */ + mng_int32 iPixelofs; /* offset to pixel-bytes in work row */ + mng_uint32 iLevel0; /* leveling variables */ + mng_uint32 iLevel1; + mng_uint32 iLevel2; + mng_uint32 iLevel3; + mng_uint8p pWorkrow; /* working row of pixel-data */ + mng_uint8p pPrevrow; /* previous row of pixel-data */ + mng_uint8p pRGBArow; /* intermediate row of RGBA8 or RGBA16 data */ + mng_bool bIsRGBA16; /* indicates intermediate row is RGBA16 */ + mng_bool bIsOpaque; /* indicates intermediate row is fully opaque */ + mng_int32 iFilterbpp; /* bpp index for filtering routines */ + + mng_int32 iSourcel; /* variables for showing objects */ + mng_int32 iSourcer; + mng_int32 iSourcet; + mng_int32 iSourceb; + mng_int32 iDestl; + mng_int32 iDestr; + mng_int32 iDestt; + mng_int32 iDestb; + + mng_objectp pFirstimgobj; /* double-linked list of */ + mng_objectp pLastimgobj; /* image-object structures */ + mng_objectp pFirstaniobj; /* double-linked list of */ + mng_objectp pLastaniobj; /* animation-object structures */ + +#if defined(MNG_GAMMA_ONLY) || defined(MNG_FULL_CMS) + mng_uint8 aGammatab[256]; /* precomputed gamma lookup table */ + mng_float dLastgamma; /* last gamma used to compute table */ +#endif + + mng_fptr fDisplayrow; /* internal callback to display an + uncompressed/unfiltered/ + color-corrected row */ + mng_fptr fRestbkgdrow; /* internal callback for restore- + background processing of a row */ + mng_fptr fCorrectrow; /* internal callback to color-correct an + uncompressed/unfiltered row */ + mng_fptr fRetrieverow; /* internal callback to retrieve an + uncompressed/unfiltered row of data */ + mng_fptr fStorerow; /* internal callback to store an + uncompressed/unfiltered row of data */ + mng_fptr fProcessrow; /* internal callback to process an + uncompressed row of data */ + mng_fptr fDifferrow; /* internal callback to perform + added filter leveling and + differing on an unfiltered row */ + mng_fptr fScalerow; /* internal callback to scale a + delta-row to the bitdepth of its target */ + mng_fptr fDeltarow; /* internal callback to execute a + delta-row onto a target */ + mng_fptr fInitrowproc; /* internal callback to initialize + the row processing */ + + mng_uint16 iDEFIobjectid; /* DEFI fields */ + mng_bool bDEFIhasdonotshow; + mng_uint8 iDEFIdonotshow; + mng_bool bDEFIhasconcrete; + mng_uint8 iDEFIconcrete; + mng_bool bDEFIhasloca; + mng_int32 iDEFIlocax; + mng_int32 iDEFIlocay; + mng_bool bDEFIhasclip; + mng_int32 iDEFIclipl; + mng_int32 iDEFIclipr; + mng_int32 iDEFIclipt; + mng_int32 iDEFIclipb; + + mng_uint16 iBACKred; /* BACK fields */ + mng_uint16 iBACKgreen; + mng_uint16 iBACKblue; + mng_uint8 iBACKmandatory; + mng_uint16 iBACKimageid; + mng_uint8 iBACKtile; + + mng_uint8 iFRAMmode; /* FRAM fields (global) */ + mng_uint32 iFRAMdelay; + mng_uint32 iFRAMtimeout; + mng_bool bFRAMclipping; + mng_int32 iFRAMclipl; + mng_int32 iFRAMclipr; + mng_int32 iFRAMclipt; + mng_int32 iFRAMclipb; + + mng_uint8 iFramemode; /* current subframe variables */ + mng_uint32 iFramedelay; + mng_uint32 iFrametimeout; + mng_bool bFrameclipping; + mng_int32 iFrameclipl; + mng_int32 iFrameclipr; + mng_int32 iFrameclipt; + mng_int32 iFrameclipb; + + mng_uint32 iNextdelay; /* delay for *after* next image */ + + mng_uint8 iSHOWmode; /* SAVE fields */ + mng_uint16 iSHOWfromid; + mng_uint16 iSHOWtoid; + mng_uint16 iSHOWnextid; + mng_int16 iSHOWskip; + + mng_uint32 iGlobalPLTEcount; /* global PLTE fields */ + mng_rgbpaltab aGlobalPLTEentries; + + mng_uint32 iGlobalTRNSrawlen; /* global tRNS fields */ + mng_uint8arr aGlobalTRNSrawdata; + + mng_uint32 iGlobalGamma; /* global gAMA fields */ + + mng_uint32 iGlobalWhitepointx; /* global cHRM fields */ + mng_uint32 iGlobalWhitepointy; + mng_uint32 iGlobalPrimaryredx; + mng_uint32 iGlobalPrimaryredy; + mng_uint32 iGlobalPrimarygreenx; + mng_uint32 iGlobalPrimarygreeny; + mng_uint32 iGlobalPrimarybluex; + mng_uint32 iGlobalPrimarybluey; + + mng_uint8 iGlobalRendintent; /* global sRGB fields */ + + mng_uint32 iGlobalProfilesize; /* global iCCP fields */ + mng_ptr pGlobalProfile; + + mng_uint16 iGlobalBKGDred; /* global bKGD fields */ + mng_uint16 iGlobalBKGDgreen; + mng_uint16 iGlobalBKGDblue; + + mng_ptr pDeltaImage; /* delta-image fields */ + mng_uint8 iDeltaImagetype; + mng_uint8 iDeltatype; + mng_uint32 iDeltaBlockwidth; + mng_uint32 iDeltaBlockheight; + mng_uint32 iDeltaBlockx; + mng_uint32 iDeltaBlocky; + mng_bool bDeltaimmediate; + + mng_fptr fDeltagetrow; /* internal delta-proc callbacks */ + mng_fptr fDeltaaddrow; + mng_fptr fDeltareplacerow; + mng_fptr fDeltaputrow; + + mng_uint16 iMAGNfromid; + mng_uint16 iMAGNtoid; +#endif /* MNG_SUPPORT_DISPLAY */ + +#ifdef MNG_INCLUDE_ZLIB + z_stream sZlib; /* zlib (de)compression variables */ + + mng_int32 iZlevel; /* zlib compression parameters */ + mng_int32 iZmethod; + mng_int32 iZwindowbits; + mng_int32 iZmemlevel; + mng_int32 iZstrategy; + + mng_uint32 iMaxIDAT; /* maximum size of IDAT data */ + + mng_bool bInflating; /* indicates "inflate" in progress */ + mng_bool bDeflating; /* indicates "deflate" in progress */ +#endif /* MNG_INCLUDE_ZLIB */ + +#ifdef MNG_INCLUDE_JNG + mngjpeg_dctmethod eJPEGdctmethod; /* IJG compression variables */ + mng_int32 iJPEGquality; + mng_int32 iJPEGsmoothing; + mng_bool bJPEGcompressprogr; + mng_bool bJPEGcompressopt; + + mng_uint32 iMaxJDAT; /* maximum size of JDAT/JDAA data */ + + mngjpeg_compp pJPEGcinfo; /* compression structure */ + mngjpeg_errorp pJPEGcerr; /* error-manager compress */ + + mngjpeg_decompp pJPEGdinfo; /* decompression structure (JDAT) */ + mngjpeg_errorp pJPEGderr; /* error-manager decompress (JDAT) */ + mngjpeg_sourcep pJPEGdsrc; /* source-manager decompress (JDAT) */ + + mngjpeg_decompp pJPEGdinfo2; /* decompression structure (JDAA) */ + mngjpeg_errorp pJPEGderr2; /* error-manager decompress (JDAA) */ + mngjpeg_sourcep pJPEGdsrc2; /* source-manager decompress (JDAA) */ + + mng_uint8p pJPEGbuf; /* buffer for JPEG (de)compression (JDAT) */ + mng_uint32 iJPEGbufmax; /* allocated space for buffer (JDAT) */ + mng_uint8p pJPEGcurrent; /* current pointer into buffer (JDAT) */ + mng_uint32 iJPEGbufremain; /* remaining bytes in buffer (JDAT) */ + mng_uint32 iJPEGtoskip; /* bytes to skip on next input-block (JDAT) */ + + mng_uint8p pJPEGbuf2; /* buffer for JPEG (de)compression (JDAA) */ + mng_uint32 iJPEGbufmax2; /* allocated space for buffer (JDAA) */ + mng_uint8p pJPEGcurrent2; /* current pointer into buffer (JDAA) */ + mng_uint32 iJPEGbufremain2; /* remaining bytes in buffer (JDAA) */ + mng_uint32 iJPEGtoskip2; /* bytes to skip on next input-block (JDAA) */ + + mng_uint8p pJPEGrow; /* buffer for a JPEG row of samples (JDAT) */ + mng_uint32 iJPEGrowlen; + + mng_uint8p pJPEGrow2; /* buffer for a JPEG row of samples (JDAA) */ + mng_uint32 iJPEGrowlen2; + + mng_bool bJPEGcompress; /* indicates "compress" initialized */ + + mng_bool bJPEGdecompress; /* indicates "decompress" initialized (JDAT) */ + mng_bool bJPEGhasheader; /* indicates "readheader" succeeded (JDAT) */ + mng_bool bJPEGdecostarted; /* indicates "decompress" started (JDAT) */ + mng_bool bJPEGscanstarted; /* indicates "first scan" started (JDAT) */ + mng_bool bJPEGprogressive; /* indicates a progressive image (JDAT) */ + + mng_bool bJPEGdecompress2; /* indicates "decompress" initialized (JDAA) */ + mng_bool bJPEGhasheader2; /* indicates "readheader" succeeded (JDAA) */ + mng_bool bJPEGdecostarted2; /* indicates "decompress" started (JDAA) */ + mng_bool bJPEGscanstarted2; /* indicates "first scan" started (JDAA) */ + mng_bool bJPEGprogressive2; /* indicates a progressive image (JDAA) */ + + mng_fptr fStorerow2; /* internal callback to store an + uncompressed/unfiltered row of JPEG-data (JDAT) */ + + mng_fptr fStorerow3; /* internal callback to store an + uncompressed/unfiltered row of JPEG-data (JDAA) */ + + mng_uint32 iJPEGrow; /* row-number for current JPEG row */ + mng_uint32 iJPEGalpharow; /* nr. of rows filled with alpha */ + mng_uint32 iJPEGrgbrow; /* nr. of rows filled with 'color'-info */ + mng_uint32 iJPEGdisprow; /* nr. of rows already displayed "on-the-fly" */ + +#if defined(MNG_USE_SETJMP) && defined (MNG_INCLUDE_IJG6B) + jmp_buf sErrorbuf; /* setjmp/longjmp buffer (error-recovery) */ +#endif + +#endif /* MNG_INCLUDE_JNG */ + + mng_uint32 aCRCtable [256]; /* CRC prefab table */ + mng_bool bCRCcomputed; /* "has been build" indicator */ + + } mng_data; + +typedef mng_data * mng_datap; + +/* ************************************************************************** */ +/* * * */ +/* * Internal Callback-Function prototypes * */ +/* * * */ +/* ************************************************************************** */ + +typedef mng_retcode(*mng_displayrow) (mng_datap pData); +typedef mng_retcode(*mng_restbkgdrow) (mng_datap pData); +typedef mng_retcode(*mng_correctrow) (mng_datap pData); +typedef mng_retcode(*mng_retrieverow) (mng_datap pData); +typedef mng_retcode(*mng_storerow) (mng_datap pData); +typedef mng_retcode(*mng_processrow) (mng_datap pData); +typedef mng_retcode(*mng_initrowproc) (mng_datap pData); +typedef mng_retcode(*mng_differrow) (mng_datap pData); +typedef mng_retcode(*mng_scalerow) (mng_datap pData); +typedef mng_retcode(*mng_deltarow) (mng_datap pData); + +typedef mng_retcode(*mng_magnify_x) (mng_datap pData, + mng_uint16 iMX, + mng_uint16 iML, + mng_uint16 iMR, + mng_uint32 iWidth, + mng_uint8p iSrcline, + mng_uint8p iDstline); +typedef mng_retcode(*mng_magnify_y) (mng_datap pData, + mng_int32 iM, + mng_int32 iS, + mng_uint32 iWidth, + mng_uint8p iSrcline1, + mng_uint8p iSrcline2, + mng_uint8p iDstline); + +/* ************************************************************************** */ +/* * * */ +/* * Routines for swapping byte-order from and to graphic files * */ +/* * (This code is adapted from the libpng package) * */ +/* * * */ +/* ************************************************************************** */ + +#ifndef MNG_BIGENDIAN_SUPPORTED +mng_uint32 mng_get_uint32 (mng_uint8p pBuf); +mng_int32 mng_get_int32 (mng_uint8p pBuf); +mng_uint16 mng_get_uint16 (mng_uint8p pBuf); +void mng_put_uint32 (mng_uint8p pBuf, + mng_uint32 i); +void mng_put_int32 (mng_uint8p pBuf, + mng_int32 i); +void mng_put_uint16 (mng_uint8p pBuf, + mng_uint16 i); +#else /* MNG_BIGENDIAN_SUPPORTED */ +#define mng_get_uint32(P) *(mng_uint32p)(P) +#define mng_get_int32(P) *(mng_int32p)(P) +#define mng_get_uint16(P) *(mng_uint16p)(P) +#define mng_put_uint32(P,I) *(mng_uint32p)(P) = (I) +#define mng_put_int32(P,I) *(mng_int32p)(P) = (I) +#define mng_put_uint16(P,I) *(mng_uint16p)(P) = (I) +#endif /* MNG_BIGENDIAN_SUPPORTED */ + +/* ************************************************************************** */ +/* * * */ +/* * Some handy(?) macro definitions * */ +/* * * */ +/* ************************************************************************** */ + +#define MAX_COORD(a, b) (((a) > (b)) ? (a) : (b)) +#define MIN_COORD(a, b) (((a) < (b)) ? (a) : (b)) + +/* ************************************************************************** */ + +#endif /* _libmng_data_h_ */ + +/* ************************************************************************** */ +/* * end of file * */ +/* ************************************************************************** */ |