--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/3rdparty/libmng/libmng_data.h Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,1032 @@
+/* ************************************************************************** */
+/* * For conditions of distribution and use, * */
+/* * see copyright notice in libmng.h * */
+/* ************************************************************************** */
+/* * * */
+/* * project : libmng * */
+/* * file : libmng_data.h copyright (c) 2000-2007 G.Juyn * */
+/* * version : 1.0.10 * */
+/* * * */
+/* * purpose : main data structure definition * */
+/* * * */
+/* * author : G.Juyn * */
+/* * * */
+/* * 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 * */
+/* * * */
+/* * 1.0.5 - 07/08/2002 - G.Juyn * */
+/* * - B578572 - removed eMNGma hack (thanks Dimitri!) * */
+/* * 1.0.5 - 07/16/2002 - G.Juyn * */
+/* * - B581625 - large chunks fail with suspension reads * */
+/* * 1.0.5 - 08/15/2002 - G.Juyn * */
+/* * - completed PROM support * */
+/* * 1.0.5 - 09/15/2002 - G.Juyn * */
+/* * - fixed LOOP iteration=0 special case * */
+/* * 1.0.5 - 09/20/2002 - G.Juyn * */
+/* * - finished support for BACK image & tiling * */
+/* * 1.0.5 - 10/07/2002 - G.Juyn * */
+/* * - added another fix for misplaced TERM chunk * */
+/* * - completed support for condition=2 in TERM chunk * */
+/* * 1.0.5 - 10/20/2002 - G.Juyn * */
+/* * - fixed processing for multiple objects in MAGN * */
+/* * - fixed display of visible target of PAST operation * */
+/* * 1.0.5 - 11/07/2002 - G.Juyn * */
+/* * - added support to get totals after mng_read() * */
+/* * 1.0.5 - 24/02/2003 - G.Juyn * */
+/* * - B683152 - libjpeg suspension not always honored correctly* */
+/* * * */
+/* * 1.0.6 - 04/11/2003 - G.Juyn * */
+/* * - B719420 - fixed several MNG_APP_CMS problems * */
+/* * 1.0.6 - 07/05/2003 - G. R-P * */
+/* * - optionally use zlib's crc32() function * */
+/* * 1.0.6 - 07/29/2003 - G.R-P * */
+/* * - added SKIPCHUNK conditionals around PAST chunk support * */
+/* * 1.0.6 - 08/17/2003 - G.R-P * */
+/* * - added iPNGdepth member to pData structure * */
+/* * * */
+/* * 1.0.7 - 03/10/2004 - G.R-P * */
+/* * - added conditionals around openstream/closestream * */
+/* * 1.0.7 - 03/24/2004 - G.R-P * */
+/* * - added more SKIPCHUNK conditionals * */
+/* * * */
+/* * 1.0.8 - 04/02/2004 - G.Juyn * */
+/* * - added CRC existence & checking flags * */
+/* * 1.0.8 - 04/10/2004 - G.Juyn * */
+/* * - added data-push mechanisms for specialized decoders * */
+/* * * */
+/* * 1.0.9 - 12/11/2004 - G.Juyn * */
+/* * - added conditional MNG_OPTIMIZE_DISPLAYCALLS * */
+/* * * */
+/* * 1.0.10 - 04/08/2007 - G.Juyn * */
+/* * - added support for mPNG proposal * */
+/* * 1.0.10 - 04/12/2007 - G.Juyn * */
+/* * - added support for ANG proposal * */
+/* * * */
+/* ************************************************************************** */
+
+#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 */
+
+#ifndef MNG_SKIPCHUNK_cHRM
+ 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;
+#endif
+
+ 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;
+
+/* ************************************************************************** */
+/* * * */
+/* * Internal buffer structure for data push mechanisms * */
+/* * * */
+/* ************************************************************************** */
+
+typedef struct {
+ mng_ptr pNext; /* for linked list */
+ mng_ptr pData; /* used for chunks & data */
+ mng_uint32 iLength;
+ mng_bool bOwned;
+ mng_uint8p pDatanext; /* only used for data */
+ mng_uint32 iRemaining;
+ } mng_pushdata;
+typedef mng_pushdata * mng_pushdatap;
+
+/* ************************************************************************** */
+/* * * */
+/* * 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 of 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_uint32 iCrcmode; /* CRC existence & checking flags */
+
+ 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_releasedata fReleasedata;
+#ifndef MNG_NO_OPEN_CLOSE_STREAM
+ mng_openstream fOpenstream;
+ mng_closestream fClosestream;
+#endif
+ 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)
+#ifndef MNG_NO_OLD_VERSIONS
+ mng_bool bPreDraft48; /* flags ancient style draft */
+#endif
+
+ 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 */
+
+#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 */
+ mng_uint8p pLargebufnext;
+
+ mng_pushdatap pFirstpushchunk; /* variables for push mechanisms */
+ mng_pushdatap pLastpushchunk;
+ mng_pushdatap pFirstpushdata;
+ mng_pushdatap pLastpushdata;
+#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 iTotalframes; /* end-totals after mng_read() */
+ mng_uint32 iTotallayers;
+ mng_uint32 iTotalplaytime; /* millisecs */
+
+ mng_bool bSkipping; /* LOOP iteration=0 */
+
+#ifdef MNG_SUPPORT_DYNAMICMNG
+ mng_bool bDynamic; /* MNG is dynamic (eg. has events) */
+ mng_bool bRunningevent; /* currently processing an event */
+ mng_bool bStopafterseek; /* stop after next SEEK */
+ mng_int32 iEventx; /* X/Y of current event */
+ mng_int32 iEventy;
+ mng_objectp pLastmousemove; /* last event triggered */
+#endif
+
+ mng_uint32 iRequestframe; /* go_xxxx variables */
+ mng_uint32 iRequestlayer;
+ mng_uint32 iRequesttime;
+ mng_bool bSearching;
+
+ mng_bool bRestorebkgd; /* flags restore required 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_bool bMisplacedTERM; /* indicates TERM is out of place */
+ mng_bool bOnlyfirstframe; /* show first frame after TERM and stop */
+ mng_uint32 iFramesafterTERM; /* determines frame-count after TERM */
+ 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 */
+#ifdef MNG_SUPPORT_DYNAMICMNG
+ mng_objectp pFirstevent; /* double-linked list of */
+ mng_objectp pLastevent; /* event-object structures */
+#endif
+
+#if defined(MNG_GAMMA_ONLY) || defined(MNG_FULL_CMS) || defined(MNG_APP_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 */
+#ifndef MNG_SKIPCHUNK_PAST
+ mng_fptr fFliprow; /* internal callback to flip a row of pixels
+ left<->right for a PAST operation */
+ mng_fptr fTilerow; /* internal callback to tile a row of pixels
+ during a PAST operation */
+#endif
+ 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_int32 iBackimgoffsx; /* temp variables for restore_bkgd */
+ mng_int32 iBackimgoffsy;
+ mng_uint32 iBackimgwidth;
+ mng_uint32 iBackimgheight;
+
+#ifndef MNG_SKIPCHUNK_FRAM
+ 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 *after* next image */
+
+ mng_bool bForcedelay;
+ mng_uint32 iAccumdelay;
+#endif
+
+#ifndef MNG_SKIPCHUNK_SHOW
+ mng_uint8 iSHOWmode; /* SHOW fields */
+ mng_uint16 iSHOWfromid;
+ mng_uint16 iSHOWtoid;
+ mng_uint16 iSHOWnextid;
+ mng_int16 iSHOWskip;
+#endif
+
+ mng_uint32 iGlobalPLTEcount; /* global PLTE fields */
+ mng_rgbpaltab aGlobalPLTEentries;
+
+ mng_uint32 iGlobalTRNSrawlen; /* global tRNS fields */
+ mng_uint8arr aGlobalTRNSrawdata;
+
+ mng_uint32 iGlobalGamma; /* global gAMA fields */
+
+#ifndef MNG_SKIPCHUNK_cHRM
+ 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;
+#endif
+
+ mng_uint8 iGlobalRendintent; /* global sRGB fields */
+
+#ifndef MNG_SKIPCHUNK_iCCP
+ mng_uint32 iGlobalProfilesize; /* global iCCP fields */
+ mng_ptr pGlobalProfile;
+#endif
+
+ mng_uint16 iGlobalBKGDred; /* global bKGD fields */
+ mng_uint16 iGlobalBKGDgreen;
+ mng_uint16 iGlobalBKGDblue;
+
+ mng_ptr pDeltaImage; /* delta-image fields */
+ mng_uint8 iDeltaImagetype;
+#endif /* MNG_SUPPORT_DISPLAY */
+ mng_uint8 iDeltatype; /* need this one in read processing !! */
+#ifdef MNG_SUPPORT_DISPLAY
+ 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;
+
+#ifndef MNG_SKIPCHUNK_PROM
+ mng_fptr fPromoterow; /* internal PROM fields */
+ mng_fptr fPromBitdepth;
+ mng_ptr pPromBuf;
+ mng_uint8 iPromColortype;
+ mng_uint8 iPromBitdepth;
+ mng_uint8 iPromFilltype;
+ mng_uint32 iPromWidth;
+ mng_ptr pPromSrc;
+ mng_ptr pPromDst;
+#endif
+
+#ifndef MNG_SKIPCHUNK_MAGN
+ mng_uint16 iMAGNfromid;
+ mng_uint16 iMAGNcurrentid;
+ mng_uint16 iMAGNtoid;
+#endif
+
+#ifndef MNG_SKIPCHUNK_PAST
+ mng_uint16 iPASTid;
+ mng_int32 iPastx; /* target x/y of last PAST */
+ mng_int32 iPasty;
+#endif
+
+ mng_objectp pLastseek; /* last processed ani_seek object */
+
+#ifdef MNG_INCLUDE_MPNG_PROPOSAL
+ mng_objectp pMPNG; /* mpNG object if available */
+#endif
+#ifdef MNG_INCLUDE_ANG_PROPOSAL
+ mng_objectp pANG; /* ANG object if available */
+#endif
+
+#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 bJPEGscanending; /* indicates "finish_output" suspended (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 */
+
+#ifndef MNG_USE_ZLIB_CRC
+ mng_uint32 aCRCtable [256]; /* CRC prefab table */
+ mng_bool bCRCcomputed; /* "has been built" indicator */
+#endif
+
+#ifdef MNG_OPTIMIZE_FOOTPRINT_INIT
+ png_imgtype ePng_imgtype;
+#endif
+
+#if defined(MNG_NO_1_2_4BIT_SUPPORT) || defined(MNG_NO_16BIT_SUPPORT)
+ mng_uint8 iPNGdepth; /* Real input depth */
+ mng_uint8 iPNGmult;
+#endif
+
+#ifdef MNG_OPTIMIZE_DISPLAYCALLS
+ mng_uint32 iRawlen; /* temp vars for display processing */
+ mng_uint8p pRawdata;
+#ifndef MNG_SKIPCHUNK_BASI
+ mng_uint16 iBASIred;
+ mng_uint16 iBASIgreen;
+ mng_uint16 iBASIblue;
+ mng_bool bBASIhasalpha;
+ mng_uint16 iBASIalpha;
+ mng_uint8 iBASIviewable;
+#endif
+#ifndef MNG_SKIPCHUNK_CLON
+ mng_uint16 iCLONsourceid;
+ mng_uint16 iCLONcloneid;
+ mng_uint8 iCLONclonetype;
+ mng_bool bCLONhasdonotshow;
+ mng_uint8 iCLONdonotshow;
+ mng_uint8 iCLONconcrete;
+ mng_bool bCLONhasloca;
+ mng_uint8 iCLONlocationtype;
+ mng_int32 iCLONlocationx;
+ mng_int32 iCLONlocationy;
+#endif
+#ifndef MNG_SKIPCHUNK_DISC
+ mng_uint32 iDISCcount;
+ mng_uint16p pDISCids;
+#endif
+#ifndef MNG_SKIPCHUNK_FRAM
+ mng_uint8 iTempFramemode;
+ mng_uint8 iTempChangedelay;
+ mng_uint32 iTempDelay;
+ mng_uint8 iTempChangetimeout;
+ mng_uint32 iTempTimeout;
+ mng_uint8 iTempChangeclipping;
+ mng_uint8 iTempCliptype;
+ mng_int32 iTempClipl;
+ mng_int32 iTempClipr;
+ mng_int32 iTempClipt;
+ mng_int32 iTempClipb;
+#endif
+#ifndef MNG_SKIPCHUNK_MOVE
+ mng_uint16 iMOVEfromid;
+ mng_uint16 iMOVEtoid;
+ mng_uint8 iMOVEmovetype;
+ mng_int32 iMOVEmovex;
+ mng_int32 iMOVEmovey;
+#endif
+#ifndef MNG_SKIPCHUNK_CLIP
+ mng_uint16 iCLIPfromid;
+ mng_uint16 iCLIPtoid;
+ mng_uint8 iCLIPcliptype;
+ mng_int32 iCLIPclipl;
+ mng_int32 iCLIPclipr;
+ mng_int32 iCLIPclipt;
+ mng_int32 iCLIPclipb;
+#endif
+#ifndef MNG_NO_DELTA_PNG
+ mng_uint16 iDHDRobjectid;
+ mng_uint8 iDHDRimagetype;
+ mng_uint8 iDHDRdeltatype;
+ mng_uint32 iDHDRblockwidth;
+ mng_uint32 iDHDRblockheight;
+ mng_uint32 iDHDRblockx;
+ mng_uint32 iDHDRblocky;
+ mng_uint8 iPROMbitdepth;
+ mng_uint8 iPROMcolortype;
+ mng_uint8 iPROMfilltype;
+ mng_uint8 iPPLTtype;
+ mng_uint32 iPPLTcount;
+ mng_palette8ep paPPLTindexentries;
+ mng_uint8p paPPLTalphaentries;
+ mng_uint8p paPPLTusedentries;
+#endif
+#ifndef MNG_SKIPCHUNK_MAGN
+ mng_uint16 iMAGNfirstid;
+ mng_uint16 iMAGNlastid;
+ mng_uint8 iMAGNmethodX;
+ mng_uint16 iMAGNmX;
+ mng_uint16 iMAGNmY;
+ mng_uint16 iMAGNmL;
+ mng_uint16 iMAGNmR;
+ mng_uint16 iMAGNmT;
+ mng_uint16 iMAGNmB;
+ mng_uint8 iMAGNmethodY;
+#endif
+#ifndef MNG_SKIPCHUNK_PAST
+ mng_uint16 iPASTtargetid;
+ mng_uint8 iPASTtargettype;
+ mng_int32 iPASTtargetx;
+ mng_int32 iPASTtargety;
+ mng_uint32 iPASTcount;
+ mng_ptr pPASTsources;
+#endif
+#endif /* MNG_OPTIMIZE_DISPLAYCALLS */
+
+ } 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_promoterow) (mng_datap pData);
+typedef mng_retcode(*mng_fliprow) (mng_datap pData);
+typedef mng_retcode(*mng_tilerow) (mng_datap pData);
+
+typedef mng_uint8 (*mng_bitdepth_8) (mng_uint8 iB);
+typedef mng_uint16 (*mng_bitdepth_16) (mng_uint8 iB);
+
+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 * */
+/* ************************************************************************** */