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769 lines
43 KiB
769 lines
43 KiB
/* ************************************************************************** */
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/* * For conditions of distribution and use, * */
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/* * see copyright notice in libmng.h * */
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/* ************************************************************************** */
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/* * * */
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/* * project : libmng * */
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/* * file : libmng_data.h copyright (c) 2000 G.Juyn * */
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/* * version : 1.0.2 * */
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/* * * */
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/* * purpose : main data structure definition * */
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/* * * */
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/* * author : G.Juyn * */
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/* * web : http://www.3-t.com * */
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/* * email : mailto:info@3-t.com * */
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/* * * */
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/* * comment : Definition of the library main data structure * */
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/* * * */
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/* * changes : 0.5.1 - 05/04/2000 - G.Juyn * */
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/* * - added CRC table to main structure (for thread-safety) * */
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/* * 0.5.1 - 05/06/2000 - G.Juyn * */
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/* * - added iPLTEentries for checking hIST-length * */
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/* * 0.5.1 - 05/08/2000 - G.Juyn * */
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/* * - changed palette definition to exported palette-type * */
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/* * - removed frozen indicator * */
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/* * - added create/write indicators * */
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/* * - changed strict-ANSI stuff * */
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/* * 0.5.1 - 05/13/2000 - G.Juyn * */
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/* * - added eMNGma hack (will be removed in 1.0.0 !!!) * */
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/* * - added TERM animation object pointer (easier reference) * */
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/* * - added saved-data structure for SAVE/SEEK processing * */
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/* * * */
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/* * 0.5.2 - 05/18/2000 - G.Juyn * */
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/* * - added fields for JNG support (IJG-based) * */
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/* * 0.5.2 - 05/24/2000 - G.Juyn * */
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/* * - changed global tRNS definition * */
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/* * 0.5.2 - 05/30/2000 - G.Juyn * */
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/* * - added delta-image fields * */
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/* * 0.5.2 - 06/01/2000 - G.Juyn * */
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/* * - added internal delta-image processing callbacks * */
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/* * 0.5.2 - 06/02/2000 - G.Juyn * */
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/* * - changed SWAP_ENDIAN to BIGENDIAN_SUPPORTED * */
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/* * (contributed by Tim Rowley) * */
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/* * - added getalphaline callback for RGB8_A8 canvasstyle * */
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/* * 0.5.2 - 06/06/2000 - G.Juyn * */
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/* * - added parameter for delayed buffer-processing * */
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/* * * */
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/* * 0.5.3 - 06/16/2000 - G.Juyn * */
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/* * - added update-region parms for refresh calback * */
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/* * - added Needrefresh parameter * */
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/* * 0.5.3 - 06/17/2000 - G.Juyn * */
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/* * - added Deltaimmediate parm for faster delta-processing * */
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/* * 0.5.3 - 06/21/2000 - G.Juyn * */
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/* * - added Speed parameter to facilitate testing * */
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/* * - added Imagelevel parameter for processtext callback * */
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/* * 0.5.3 - 06/26/2000 - G.Juyn * */
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/* * - changed userdata variable to mng_ptr * */
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/* * * */
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/* * 0.9.1 - 07/07/2000 - G.Juyn * */
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/* * - added variables for go_xxxx processing * */
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/* * 0.9.1 - 07/08/2000 - G.Juyn * */
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/* * - added variables for improved timing support * */
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/* * 0.9.1 - 07/15/2000 - G.Juyn * */
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/* * - added callbacks for SAVE/SEEK processing * */
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/* * - added variable for NEEDSECTIONWAIT breaks * */
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/* * - added variable for freeze & reset processing * */
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/* * 0.9.1 - 07/17/2000 - G.Juyn * */
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/* * - fixed suspension-buffering for 32K+ chunks * */
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/* * * */
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/* * 0.9.2 - 07/29/2000 - G.Juyn * */
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/* * - removed Nextbackxxx fields (no longer used) * */
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/* * 0.9.2 - 07/31/2000 - G.Juyn * */
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/* * - fixed wrapping of suspension parameters * */
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/* * 0.9.2 - 08/04/2000 - G.Juyn * */
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/* * - B111096 - fixed large-buffer read-suspension * */
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/* * 0.9.2 - 08/05/2000 - G.Juyn * */
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/* * - changed file-prefixes * */
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/* * * */
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/* * 0.9.3 - 08/26/2000 - G.Juyn * */
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/* * - added MAGN chunk * */
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/* * 0.9.3 - 09/07/2000 - G.Juyn * */
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/* * - added support for new filter_types * */
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/* * 0.9.3 - 09/10/2000 - G.Juyn * */
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/* * - fixed DEFI behavior * */
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/* * 0.9.3 - 10/10/2000 - G.Juyn * */
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/* * - added support for alpha-depth prediction * */
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/* * 0.9.3 - 10/11/2000 - G.Juyn * */
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/* * - added support for nEED * */
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/* * 0.9.3 - 10/16/2000 - G.Juyn * */
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/* * - added optional support for bKGD for PNG images * */
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/* * - added support for JDAA * */
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/* * 0.9.3 - 10/17/2000 - G.Juyn * */
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/* * - added callback to process non-critical unknown chunks * */
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/* * - fixed support for bKGD * */
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/* * 0.9.3 - 10/19/2000 - G.Juyn * */
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/* * - implemented delayed delta-processing * */
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/* * 0.9.4 - 12/16/2000 - G.Juyn * */
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/* * - fixed mixup of data- & function-pointers (thanks Dimitri)* */
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/* * * */
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/* * 1.0.1 - 02/08/2001 - G.Juyn * */
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/* * - added MEND processing callback * */
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/* * 1.0.1 - 02/13/2001 - G.Juyn * */
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/* * - fixed first FRAM_MODE=4 timing problem * */
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/* * * */
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/* * 1.0.2 - 06/23/2001 - G.Juyn * */
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/* * - added optimization option for MNG-video playback * */
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/* * - added processterm callback * */
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/* * 1.0.2 - 06/25/2001 - G.Juyn * */
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/* * - added option to turn off progressive refresh * */
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/* * * */
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/* ************************************************************************** */
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#if defined(__BORLANDC__) && defined(MNG_STRICT_ANSI)
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#pragma option -A /* force ANSI-C */
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#endif
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#ifndef _libmng_data_h_
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#define _libmng_data_h_
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/* ************************************************************************** */
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#define MNG_MAGIC 0x52530a0aL
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/* ************************************************************************** */
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/* * * */
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/* * Internal structures * */
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/* * * */
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/* ************************************************************************** */
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typedef mng_palette8 mng_rgbpaltab;
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/* ************************************************************************** */
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/* * * */
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/* * The saved_data structure * */
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/* * * */
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/* * This contains the saved data after a SAVE chunk has been processed. * */
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/* * The data is saved from the main data structure during SAVE processing, * */
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/* * and restored to the main data structure during SEEK processing. * */
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/* * * */
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/* ************************************************************************** */
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typedef struct mng_savedata_struct {
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#if defined(MNG_SUPPORT_READ) || defined(MNG_SUPPORT_WRITE)
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mng_bool bHasglobalPLTE; /* global PLTE chunk processed */
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mng_bool bHasglobalTRNS; /* global tRNS chunk processed */
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mng_bool bHasglobalGAMA; /* global gAMA chunk processed */
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mng_bool bHasglobalCHRM; /* global cHRM chunk processed */
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mng_bool bHasglobalSRGB; /* global sRGB chunk processed */
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mng_bool bHasglobalICCP; /* global iCCP chunk processed */
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mng_bool bHasglobalBKGD; /* global bKGD chunk processed */
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#endif /* MNG_SUPPORT_READ || MNG_SUPPORT_WRITE */
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#ifdef MNG_SUPPORT_DISPLAY
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mng_uint16 iBACKred; /* BACK fields */
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mng_uint16 iBACKgreen;
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mng_uint16 iBACKblue;
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mng_uint8 iBACKmandatory;
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mng_uint16 iBACKimageid;
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mng_uint8 iBACKtile;
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mng_uint8 iFRAMmode; /* FRAM fields (global) */
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mng_uint32 iFRAMdelay;
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mng_uint32 iFRAMtimeout;
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mng_bool bFRAMclipping;
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mng_int32 iFRAMclipl;
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mng_int32 iFRAMclipr;
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mng_int32 iFRAMclipt;
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mng_int32 iFRAMclipb;
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mng_uint32 iGlobalPLTEcount; /* global PLTE fields */
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mng_rgbpaltab aGlobalPLTEentries;
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mng_uint32 iGlobalTRNSrawlen; /* global tRNS fields */
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mng_uint8arr aGlobalTRNSrawdata;
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mng_uint32 iGlobalGamma; /* global gAMA fields */
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mng_uint32 iGlobalWhitepointx; /* global cHRM fields */
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mng_uint32 iGlobalWhitepointy;
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mng_uint32 iGlobalPrimaryredx;
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mng_uint32 iGlobalPrimaryredy;
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mng_uint32 iGlobalPrimarygreenx;
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mng_uint32 iGlobalPrimarygreeny;
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mng_uint32 iGlobalPrimarybluex;
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mng_uint32 iGlobalPrimarybluey;
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mng_uint8 iGlobalRendintent; /* global sRGB fields */
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mng_uint32 iGlobalProfilesize; /* global iCCP fields */
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mng_ptr pGlobalProfile;
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mng_uint16 iGlobalBKGDred; /* global bKGD fields */
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mng_uint16 iGlobalBKGDgreen;
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mng_uint16 iGlobalBKGDblue;
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#endif /* MNG_SUPPORT_DISPLAY */
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} mng_savedata;
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typedef mng_savedata * mng_savedatap;
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/* ************************************************************************** */
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/* * * */
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/* * The main libmng data structure * */
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/* * * */
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/* * The handle used in all functions points to this structure which * */
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/* * contains all volatile data necessary to process the network graphic. * */
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/* * * */
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/* ************************************************************************** */
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typedef struct mng_data_struct {
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mng_uint32 iMagic; /* magic number to validate
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a given handle */
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mng_ptr pUserdata; /* application workdata */
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mng_imgtype eSigtype; /* image information */
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mng_imgtype eImagetype; /* initially zeroed */
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mng_uint32 iWidth; /* filled after header is processed */
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mng_uint32 iHeight;
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mng_uint32 iTicks; /* these only after MHDR */
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mng_uint32 iLayercount;
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mng_uint32 iFramecount;
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mng_uint32 iPlaytime;
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mng_uint32 iSimplicity;
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mng_uint8 iAlphadepth; /* indicates expected alpha-depth */
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mng_uint32 iImagelevel; /* level an image inside a stream */
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mng_uint32 iCanvasstyle; /* layout of the drawing-canvas */
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mng_uint32 iBkgdstyle; /* layout of the background-canvas */
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mng_int8 iMagnify; /* magnification factor (not used yet) */
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mng_uint32 iOffsetx; /* x-offset for extremely large image */
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mng_uint32 iOffsety; /* y-offset for extremely large image */
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mng_uint32 iCanvaswidth; /* real canvas size */
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mng_uint32 iCanvasheight; /* must be set by processheader callback */
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mng_uint16 iBGred; /* default background color */
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mng_uint16 iBGgreen; /* initially "black" */
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mng_uint16 iBGblue;
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mng_bool bUseBKGD; /* preferred use of bKGD for PNG */
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mng_bool bIssRGB; /* indicates sRGB system */
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#ifdef MNG_FULL_CMS /* little CMS variables */
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mng_cmsprof hProf1; /* image input profile */
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mng_cmsprof hProf2; /* default output profile */
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mng_cmsprof hProf3; /* default sRGB profile */
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mng_cmstrans hTrans; /* current transformation handle */
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#endif
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mng_float dViewgamma; /* gamma calculation variables */
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mng_float dDisplaygamma; /* initially set for sRGB conditions */
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mng_float dDfltimggamma;
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mng_bool bStorechunks; /* switch for storing chunkdata */
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mng_bool bSectionbreaks; /* indicate NEEDSECTIONWAIT breaks */
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mng_bool bCacheplayback; /* switch to cache playback info */
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mng_bool bDoProgressive; /* progressive refresh for large images */
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mng_speedtype iSpeed; /* speed-modifier for animations */
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mng_uint32 iMaxwidth; /* maximum canvas size */
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mng_uint32 iMaxheight; /* initially set to 1024 x 1024 */
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mng_int32 iErrorcode; /* error reporting fields */
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mng_int8 iSeverity;
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mng_int32 iErrorx1;
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mng_int32 iErrorx2;
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mng_pchar zErrortext;
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mng_memalloc fMemalloc; /* callback pointers */
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mng_memfree fMemfree; /* initially nulled */
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mng_openstream fOpenstream;
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mng_closestream fClosestream;
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mng_readdata fReaddata;
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mng_writedata fWritedata;
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mng_errorproc fErrorproc;
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mng_traceproc fTraceproc;
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mng_processheader fProcessheader;
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mng_processtext fProcesstext;
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mng_processsave fProcesssave;
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mng_processseek fProcessseek;
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mng_processneed fProcessneed;
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mng_processmend fProcessmend;
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mng_processunknown fProcessunknown;
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mng_processterm fProcessterm;
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mng_getcanvasline fGetcanvasline;
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mng_getbkgdline fGetbkgdline;
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mng_getalphaline fGetalphaline;
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mng_refresh fRefresh;
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mng_gettickcount fGettickcount;
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mng_settimer fSettimer;
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mng_processgamma fProcessgamma;
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mng_processchroma fProcesschroma;
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mng_processsrgb fProcesssrgb;
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mng_processiccp fProcessiccp;
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mng_processarow fProcessarow;
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#if defined(MNG_SUPPORT_READ) || defined(MNG_SUPPORT_WRITE)
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mng_bool bPreDraft48; /* flags ancient style draft */
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mng_chunkid iChunkname; /* read/write-state variables */
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mng_uint32 iChunkseq;
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mng_chunkp pFirstchunk; /* double-linked list of */
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mng_chunkp pLastchunk; /* stored chunk-structures */
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mng_bool bHasheader; /* first header chunk processed */
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mng_bool bHasMHDR; /* inside a MHDR-MEND sequence */
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mng_bool bHasIHDR; /* inside a IHDR-IEND sequence */
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mng_bool bHasBASI; /* inside a BASI-IEND sequence */
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mng_bool bHasDHDR; /* inside a DHDR-IEND sequence */
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#ifdef MNG_INCLUDE_JNG
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mng_bool bHasJHDR; /* inside a JHDR-IEND sequence */
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mng_bool bHasJSEP; /* passed the JSEP separator */
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mng_bool bHasJDAA; /* at least 1 JDAA processed */
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mng_bool bHasJDAT; /* at least 1 JDAT processed */
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#endif
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mng_bool bHasPLTE; /* PLTE chunk processed */
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mng_bool bHasTRNS; /* tRNS chunk processed */
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mng_bool bHasGAMA; /* gAMA chunk processed */
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mng_bool bHasCHRM; /* cHRM chunk processed */
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mng_bool bHasSRGB; /* sRGB chunk processed */
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mng_bool bHasICCP; /* iCCP chunk processed */
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mng_bool bHasBKGD; /* bKGD chunk processed */
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mng_bool bHasIDAT; /* at least 1 IDAT processed */
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mng_bool bHasSAVE; /* SAVE chunk processed */
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mng_bool bHasBACK; /* BACK chunk processed */
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mng_bool bHasFRAM; /* FRAM chunk processed */
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mng_bool bHasTERM; /* TERM chunk processed */
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mng_bool bHasLOOP; /* at least 1 LOOP open */
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mng_bool bHasglobalPLTE; /* global PLTE chunk processed */
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mng_bool bHasglobalTRNS; /* global tRNS chunk processed */
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mng_bool bHasglobalGAMA; /* global gAMA chunk processed */
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mng_bool bHasglobalCHRM; /* global cHRM chunk processed */
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mng_bool bHasglobalSRGB; /* global sRGB chunk processed */
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mng_bool bHasglobalICCP; /* global iCCP chunk processed */
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mng_bool bHasglobalBKGD; /* global bKGD chunk processed */
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mng_uint32 iDatawidth; /* IHDR/BASI/DHDR fields */
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mng_uint32 iDataheight; /* valid if inside IHDR-IEND, */
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mng_uint8 iBitdepth; /* BASI-IEND or DHDR-IEND */
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mng_uint8 iColortype;
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mng_uint8 iCompression;
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mng_uint8 iFilter;
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mng_uint8 iInterlace;
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mng_uint32 iPLTEcount; /* PLTE fields */
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mng_bool bEMNGMAhack; /* TODO: to be removed in 1.0.0 !!! */
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#ifdef MNG_INCLUDE_JNG
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mng_uint8 iJHDRcolortype; /* JHDR fields */
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mng_uint8 iJHDRimgbitdepth; /* valid if inside JHDR-IEND */
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mng_uint8 iJHDRimgcompression;
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mng_uint8 iJHDRimginterlace;
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mng_uint8 iJHDRalphabitdepth;
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mng_uint8 iJHDRalphacompression;
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mng_uint8 iJHDRalphafilter;
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mng_uint8 iJHDRalphainterlace;
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#endif
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#endif /* MNG_SUPPORT_READ || MNG_SUPPORT_WRITE */
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#ifdef MNG_SUPPORT_READ
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mng_bool bReading; /* read processing variables */
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mng_bool bHavesig;
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mng_bool bEOF;
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mng_uint32 iReadbufsize;
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mng_uint8p pReadbuf;
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mng_uint32 iLargebufsize; /* temp for very large chunks */
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mng_uint8p pLargebuf;
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mng_uint32 iSuspendtime; /* tickcount at last suspension */
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mng_bool bSuspended; /* input-reading has been suspended;
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we're expecting a call to
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mng_read_resume! */
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mng_uint8 iSuspendpoint; /* indicates at which point the flow
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was broken to suspend input-reading */
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mng_bool bSuspensionmode; /* I/O-suspension variables */
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mng_uint32 iSuspendbufsize;
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mng_uint8p pSuspendbuf;
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mng_uint8p pSuspendbufnext;
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mng_uint32 iSuspendbufleft;
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mng_uint32 iChunklen; /* chunk length */
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mng_uint8p pReadbufnext; /* 32K+ suspension-processing */
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#endif /* MNG_SUPPORT_READ */
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#ifdef MNG_SUPPORT_WRITE
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mng_bool bCreating; /* create/write processing variables */
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mng_bool bWriting;
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mng_chunkid iFirstchunkadded;
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mng_uint32 iWritebufsize;
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mng_uint8p pWritebuf;
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#endif
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#ifdef MNG_SUPPORT_DISPLAY
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mng_bool bDisplaying; /* display-state variables */
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mng_bool bFramedone;
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mng_uint32 iFrameseq;
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mng_uint32 iLayerseq;
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mng_uint32 iFrametime; /* millisecs */
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mng_uint32 iRequestframe; /* go_xxxx variables */
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mng_uint32 iRequestlayer;
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mng_uint32 iRequesttime;
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mng_bool bSearching;
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mng_bool bRestorebkgd; /* flags restore required before IDAT/JDAT */
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mng_uint32 iRuntime; /* millisecs since start */
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mng_uint32 iSynctime; /* tickcount at last framesync */
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mng_uint32 iStarttime; /* tickcount at start */
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mng_uint32 iEndtime; /* tickcount at end */
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mng_bool bRunning; /* animation is active */
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mng_bool bTimerset; /* the timer has been set;
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we're expecting a call to
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mng_display_resume! */
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mng_uint8 iBreakpoint; /* indicates at which point the
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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 * */
|
|
/* ************************************************************************** */
|