📄 libmng_objects.h
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/* ************************************************************************** */
/* * For conditions of distribution and use, * */
/* * see copyright notice in libmng.h * */
/* ************************************************************************** */
/* * * */
/* * project : libmng * */
/* * file : libmng_objects.h copyright (c) 2000-2004 G.Juyn * */
/* * version : 1.0.7 * */
/* * * */
/* * purpose : Internal object structures (definition) * */
/* * * */
/* * author : G.Juyn * */
/* * * */
/* * comment : Definition of the internal object structures * */
/* * * */
/* * changes : 0.5.1 - 05/08/2000 - G.Juyn * */
/* * - changed strict-ANSI stuff * */
/* * * */
/* * 0.5.2 - 05/23/2000 - G.Juyn * */
/* * - changed inclusion to DISPLAY_PROCS * */
/* * 0.5.2 - 05/24/2000 - G.Juyn * */
/* * - added global color-chunks for animations * */
/* * - added global PLTE,tRNS,bKGD chunks for animation * */
/* * - added SAVE & SEEK animation objects * */
/* * 0.5.2 - 05/29/2000 - G.Juyn * */
/* * - added framenr/layernr/playtime to object header * */
/* * 0.5.2 - 05/30/2000 - G.Juyn * */
/* * - added ani-objects for delta-image processing * */
/* * - added compression/filter/interlace fields to * */
/* * object-buffer for delta-image processing * */
/* * * */
/* * 0.5.3 - 06/17/2000 - G.Juyn * */
/* * - changed definition of aTRNSentries * */
/* * 0.5.3 - 06/22/2000 - G.Juyn * */
/* * - added definition for PPLT animation-processing * */
/* * * */
/* * 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 - 09/10/2000 - G.Juyn * */
/* * - fixed DEFI behavior * */
/* * 0.9.3 - 10/16/2000 - G.Juyn * */
/* * - added support for delta-JNG * */
/* * 0.9.3 - 10/17/2000 - G.Juyn * */
/* * - added valid-flag to stored objects for read() / display()* */
/* * 0.9.3 - 10/19/2000 - G.Juyn * */
/* * - added storage for pixel-/alpha-sampledepth for delta's * */
/* * * */
/* * 1.0.5 - 09/13/2002 - G.Juyn * */
/* * - fixed read/write of MAGN chunk * */
/* * 1.0.5 - 09/15/2002 - G.Juyn * */
/* * - added event handling for dynamic MNG * */
/* * 1.0.5 - 09/20/2002 - G.Juyn * */
/* * - added support for PAST * */
/* * 1.0.5 - 09/23/2002 - G.Juyn * */
/* * - added in-memory color-correction of abstract images * */
/* * 1.0.5 - 10/07/2002 - G.Juyn * */
/* * - fixed DISC support * */
/* * * */
/* * 1.0.6 - 10/07/2003 - G.R-P * */
/* * - added SKIPCHUNK conditionals * */
/* * * */
/* * 1.0.7 - 03/24/2004 - G.R-P * */
/* * - added more SKIPCHUNK conditionals * */
/* * * */
/* ************************************************************************** */
#if defined(__BORLANDC__) && defined(MNG_STRICT_ANSI)
#pragma option -A /* force ANSI-C */
#endif
#ifndef _libmng_objects_h_
#define _libmng_objects_h_
/* ************************************************************************** */
#ifdef MNG_INCLUDE_DISPLAY_PROCS
/* ************************************************************************** */
typedef mng_retcode (*mng_cleanupobject) (mng_datap pData,
mng_objectp pHeader);
typedef mng_retcode (*mng_processobject) (mng_datap pData,
mng_objectp pHeader);
/* ************************************************************************** */
typedef struct {
mng_cleanupobject fCleanup;
mng_processobject fProcess;
mng_objectp pNext; /* for double-linked list */
mng_objectp pPrev;
mng_uint32 iFramenr;
mng_uint32 iLayernr;
mng_uint32 iPlaytime;
} mng_object_header;
typedef mng_object_header * mng_object_headerp;
/* ************************************************************************** */
typedef struct { /* MNG specification "object-buffer" */
mng_object_header sHeader; /* default header (DO NOT REMOVE) */
mng_uint32 iRefcount; /* reference counter */
mng_bool bFrozen; /* frozen flag */
mng_bool bConcrete; /* concrete flag */
mng_bool bViewable; /* viewable flag */
mng_uint32 iWidth; /* image specifics */
mng_uint32 iHeight;
mng_uint8 iBitdepth;
mng_uint8 iColortype;
mng_uint8 iCompression;
mng_uint8 iFilter;
mng_uint8 iInterlace;
mng_bool bCorrected; /* indicates if an abstract image
has already been color-corrected */
mng_uint8 iAlphabitdepth; /* used only for JNG images */
mng_uint8 iJHDRcompression;
mng_uint8 iJHDRinterlace;
mng_uint8 iPixelsampledepth; /* used with delta-images */
mng_uint8 iAlphasampledepth;
mng_bool bHasPLTE; /* PLTE chunk present */
mng_bool bHasTRNS; /* tRNS chunk present */
mng_bool bHasGAMA; /* gAMA chunk present */
mng_bool bHasCHRM; /* cHRM chunk present */
mng_bool bHasSRGB; /* sRGB chunk present */
mng_bool bHasICCP; /* iCCP chunk present */
mng_bool bHasBKGD; /* bKGD chunk present */
mng_uint32 iPLTEcount; /* PLTE fields */
mng_rgbpaltab aPLTEentries;
mng_uint16 iTRNSgray; /* tRNS fields */
mng_uint16 iTRNSred;
mng_uint16 iTRNSgreen;
mng_uint16 iTRNSblue;
mng_uint32 iTRNScount;
mng_uint8arr aTRNSentries;
mng_uint32 iGamma; /* gAMA fields */
mng_uint32 iWhitepointx; /* cHRM fields */
mng_uint32 iWhitepointy;
mng_uint32 iPrimaryredx;
mng_uint32 iPrimaryredy;
mng_uint32 iPrimarygreenx;
mng_uint32 iPrimarygreeny;
mng_uint32 iPrimarybluex;
mng_uint32 iPrimarybluey;
mng_uint8 iRenderingintent; /* sRGB fields */
mng_uint32 iProfilesize; /* iCCP fields */
mng_ptr pProfile;
mng_uint8 iBKGDindex; /* bKGD fields */
mng_uint16 iBKGDgray;
mng_uint16 iBKGDred;
mng_uint16 iBKGDgreen;
mng_uint16 iBKGDblue;
mng_uint32 iSamplesize; /* size of a sample */
mng_uint32 iRowsize; /* size of a row of samples */
mng_uint32 iImgdatasize; /* size of the sample data buffer */
mng_uint8p pImgdata; /* actual sample data buffer */
} mng_imagedata;
typedef mng_imagedata * mng_imagedatap;
/* ************************************************************************** */
typedef struct { /* MNG specification "object" */
mng_object_header sHeader; /* default header (DO NOT REMOVE) */
mng_uint16 iId; /* object-id */
mng_bool bFrozen; /* frozen flag */
mng_bool bVisible; /* potential visibility flag */
mng_bool bViewable; /* viewable flag */
mng_bool bValid; /* marks invalid when only reading */
mng_int32 iPosx; /* location fields */
mng_int32 iPosy;
mng_bool bClipped; /* clipping fields */
mng_int32 iClipl;
mng_int32 iClipr;
mng_int32 iClipt;
mng_int32 iClipb;
#ifndef MNG_SKIPCHUNK_MAGN
mng_uint8 iMAGN_MethodX; /* magnification (MAGN) */
mng_uint8 iMAGN_MethodY;
mng_uint16 iMAGN_MX;
mng_uint16 iMAGN_MY;
mng_uint16 iMAGN_ML;
mng_uint16 iMAGN_MR;
mng_uint16 iMAGN_MT;
mng_uint16 iMAGN_MB;
#endif
#ifndef MNG_SKIPCHUNK_PAST
mng_int32 iPastx; /* target x/y from previous PAST */
mng_int32 iPasty;
#endif
mng_imagedatap pImgbuf; /* the image-data buffer */
} mng_image;
typedef mng_image * mng_imagep;
/* ************************************************************************** */
/* "on-the-fly" image (= object 0) */
typedef mng_image mng_ani_image; /* let's (ab)use the general "object" */
typedef mng_ani_image * mng_ani_imagep; /* that's actualy crucial, so don't change it! */
/* ************************************************************************** */
typedef struct { /* global PLTE object */
mng_object_header sHeader; /* default header (DO NOT REMOVE) */
mng_uint32 iEntrycount;
mng_rgbpaltab aEntries;
} mng_ani_plte;
typedef mng_ani_plte * mng_ani_pltep;
/* ************************************************************************** */
typedef struct { /* global tRNS object */
mng_object_header sHeader; /* default header (DO NOT REMOVE) */
mng_uint32 iRawlen;
mng_uint8arr aRawdata;
} mng_ani_trns;
typedef mng_ani_trns * mng_ani_trnsp;
/* ************************************************************************** */
typedef struct { /* global gAMA object */
mng_object_header sHeader; /* default header (DO NOT REMOVE) */
mng_bool bEmpty;
mng_uint32 iGamma;
} mng_ani_gama;
typedef mng_ani_gama * mng_ani_gamap;
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_cHRM
typedef struct { /* global cHRM object */
mng_object_header sHeader; /* default header (DO NOT REMOVE) */
mng_bool bEmpty;
mng_uint32 iWhitepointx;
mng_uint32 iWhitepointy;
mng_uint32 iRedx;
mng_uint32 iRedy;
mng_uint32 iGreenx;
mng_uint32 iGreeny;
mng_uint32 iBluex;
mng_uint32 iBluey;
} mng_ani_chrm;
typedef mng_ani_chrm * mng_ani_chrmp;
#endif
/* ************************************************************************** */
typedef struct { /* global sRGB object */
mng_object_header sHeader; /* default header (DO NOT REMOVE) */
mng_bool bEmpty;
mng_uint8 iRenderingintent;
} mng_ani_srgb;
typedef mng_ani_srgb * mng_ani_srgbp;
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_iCCP
typedef struct { /* global iCCP object */
mng_object_header sHeader; /* default header (DO NOT REMOVE) */
mng_bool bEmpty;
mng_uint32 iProfilesize;
mng_ptr pProfile;
} mng_ani_iccp;
typedef mng_ani_iccp * mng_ani_iccpp;
#endif
/* ************************************************************************** */
typedef struct { /* global bKGD object */
mng_object_header sHeader; /* default header (DO NOT REMOVE) */
mng_uint16 iRed;
mng_uint16 iGreen;
mng_uint16 iBlue;
} mng_ani_bkgd;
typedef mng_ani_bkgd * mng_ani_bkgdp;
/* ************************************************************************** */
typedef struct { /* LOOP object */
mng_object_header sHeader; /* default header (DO NOT REMOVE) */
mng_uint8 iLevel;
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