| /* ************************************************************************** */ |
| /* * 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 */ |
| #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 * */ |
| /* ************************************************************************** */ |
