blob: e1004a540466edaa82fb61986ac2e43d9b5a3529 [file] [log] [blame]
/* ************************************************************************** */
/* * For conditions of distribution and use, * */
/* * see copyright notice in libmng.h * */
/* ************************************************************************** */
/* * * */
/* * project : libmng * */
/* * file : libmng_chunk_descr.c copyright (c) 2005-2007 G.Juyn * */
/* * version : 1.0.10 * */
/* * * */
/* * purpose : Chunk descriptor functions (implementation) * */
/* * * */
/* * author : G.Juyn * */
/* * * */
/* * comment : implementation of the chunk- anf field-descriptor * */
/* * routines * */
/* * * */
/* * changes : 1.0.9 - 12/06/2004 - G.Juyn * */
/* * - added conditional MNG_OPTIMIZE_CHUNKREADER * */
/* * 1.0.9 - 12/11/2004 - G.Juyn * */
/* * - made all constants 'static' * */
/* * 1.0.9 - 12/20/2004 - G.Juyn * */
/* * - cleaned up macro-invocations (thanks to D. Airlie) * */
/* * 1.0.9 - 01/17/2005 - G.Juyn * */
/* * - fixed problem with global PLTE/tRNS * */
/* * * */
/* * 1.0.10 - 01/17/2005 - G.R-P. * */
/* * - added typecast to appease the compiler * */
/* * 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 * */
/* * * */
/* ************************************************************************** */
#include <stddef.h> /* needed for offsetof() */
#include "libmng.h"
#include "libmng_data.h"
#include "libmng_error.h"
#include "libmng_trace.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#include "libmng_memory.h"
#include "libmng_objects.h"
#include "libmng_chunks.h"
#include "libmng_chunk_descr.h"
#include "libmng_object_prc.h"
#include "libmng_chunk_prc.h"
#include "libmng_chunk_io.h"
#include "libmng_display.h"
#ifdef MNG_INCLUDE_ANG_PROPOSAL
#include "libmng_pixels.h"
#include "libmng_filter.h"
#endif
#if defined(__BORLANDC__) && defined(MNG_STRICT_ANSI)
#pragma option -A /* force ANSI-C */
#endif
/* ************************************************************************** */
#ifdef MNG_OPTIMIZE_CHUNKREADER
#if defined(MNG_INCLUDE_READ_PROCS) || defined(MNG_INCLUDE_WRITE_PROCS)
/* ************************************************************************** */
/* ************************************************************************** */
/* PNG chunks */
MNG_LOCAL mng_field_descriptor mng_fields_ihdr [] =
{
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_NOHIGHBIT,
1, 0, 4, 4,
offsetof(mng_ihdr, iWidth), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_NOHIGHBIT,
1, 0, 4, 4,
offsetof(mng_ihdr, iHeight), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
1, 16, 1, 1,
offsetof(mng_ihdr, iBitdepth), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 6, 1, 1,
offsetof(mng_ihdr, iColortype), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 1, 1,
offsetof(mng_ihdr, iCompression), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 1, 1,
offsetof(mng_ihdr, iFilter), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 1, 1, 1,
offsetof(mng_ihdr, iInterlace), MNG_NULL, MNG_NULL}
};
/* ************************************************************************** */
MNG_LOCAL mng_field_descriptor mng_fields_plte [] =
{
{mng_debunk_plte,
MNG_NULL,
0, 0, 0, 0,
MNG_NULL, MNG_NULL, MNG_NULL}
};
/* ************************************************************************** */
MNG_LOCAL mng_field_descriptor mng_fields_idat [] =
{
{MNG_NULL,
MNG_NULL,
0, 0, 0, 0,
offsetof(mng_idat, pData), MNG_NULL, offsetof(mng_idat, iDatasize)}
};
/* ************************************************************************** */
MNG_LOCAL mng_field_descriptor mng_fields_trns [] =
{
{mng_debunk_trns,
MNG_NULL,
0, 0, 0, 0,
MNG_NULL, MNG_NULL, MNG_NULL}
};
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_gAMA
MNG_LOCAL mng_field_descriptor mng_fields_gama [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_gama, iGamma), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_cHRM
MNG_LOCAL mng_field_descriptor mng_fields_chrm [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_chrm, iWhitepointx), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_chrm, iWhitepointy), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_chrm, iRedx), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_chrm, iRedy), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_chrm, iGreeny), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_chrm, iGreeny), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_chrm, iBluex), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_chrm, iBluey), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_sRGB
MNG_LOCAL mng_field_descriptor mng_fields_srgb [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 4, 1, 1,
offsetof(mng_srgb, iRenderingintent), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_iCCP
MNG_LOCAL mng_field_descriptor mng_fields_iccp [] =
{
{MNG_NULL,
MNG_FIELD_TERMINATOR,
0, 0, 1, 79,
offsetof(mng_iccp, zName), MNG_NULL, offsetof(mng_iccp, iNamesize)},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 1, 1,
offsetof(mng_iccp, iCompression), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_DEFLATED,
0, 0, 0, 0,
offsetof(mng_iccp, pProfile), MNG_NULL, offsetof(mng_iccp, iProfilesize)}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_tEXt
MNG_LOCAL mng_field_descriptor mng_fields_text [] =
{
{MNG_NULL,
MNG_FIELD_TERMINATOR,
0, 0, 1, 79,
offsetof(mng_text, zKeyword), MNG_NULL, offsetof(mng_text, iKeywordsize)},
{MNG_NULL,
MNG_NULL,
0, 0, 0, 0,
offsetof(mng_text, zText), MNG_NULL, offsetof(mng_text, iTextsize)}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_zTXt
MNG_LOCAL mng_field_descriptor mng_fields_ztxt [] =
{
{MNG_NULL,
MNG_FIELD_TERMINATOR,
0, 0, 1, 79,
offsetof(mng_ztxt, zKeyword), MNG_NULL, offsetof(mng_ztxt, iKeywordsize)},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 1, 1,
offsetof(mng_ztxt, iCompression), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_DEFLATED,
0, 0, 0, 0,
offsetof(mng_ztxt, zText), MNG_NULL, offsetof(mng_ztxt, iTextsize)}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_iTXt
MNG_LOCAL mng_field_descriptor mng_fields_itxt [] =
{
{MNG_NULL,
MNG_FIELD_TERMINATOR,
0, 0, 1, 79,
offsetof(mng_itxt, zKeyword), MNG_NULL, offsetof(mng_itxt, iKeywordsize)},
{MNG_NULL,
MNG_FIELD_INT,
0, 1, 1, 1,
offsetof(mng_itxt, iCompressionflag), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 1, 1,
offsetof(mng_itxt, iCompressionmethod), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_TERMINATOR,
0, 0, 0, 0,
offsetof(mng_itxt, zLanguage), MNG_NULL, offsetof(mng_itxt, iLanguagesize)},
{MNG_NULL,
MNG_FIELD_TERMINATOR,
0, 0, 0, 0,
offsetof(mng_itxt, zTranslation), MNG_NULL, offsetof(mng_itxt, iTranslationsize)},
{mng_deflate_itxt,
MNG_NULL,
0, 0, 0, 0,
MNG_NULL, MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_bKGD
MNG_LOCAL mng_field_descriptor mng_fields_bkgd [] =
{
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_PUTIMGTYPE,
0, 0, 0, 0,
offsetof(mng_bkgd, iType), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_IFIMGTYPE3,
0, 0xFF, 1, 1,
offsetof(mng_bkgd, iIndex), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_IFIMGTYPE0 | MNG_FIELD_IFIMGTYPE4,
0, 0xFFFF, 2, 2,
offsetof(mng_bkgd, iGray), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_IFIMGTYPE2 | MNG_FIELD_IFIMGTYPE6,
0, 0xFFFF, 2, 2,
offsetof(mng_bkgd, iRed), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_IFIMGTYPE2 | MNG_FIELD_IFIMGTYPE6,
0, 0xFFFF, 2, 2,
offsetof(mng_bkgd, iGreen), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_IFIMGTYPE2 | MNG_FIELD_IFIMGTYPE6,
0, 0xFFFF, 2, 2,
offsetof(mng_bkgd, iBlue), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_pHYs
MNG_LOCAL mng_field_descriptor mng_fields_phys [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_phys, iSizex), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_phys, iSizey), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 1, 1, 1,
offsetof(mng_phys, iUnit), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_sBIT
MNG_LOCAL mng_field_descriptor mng_fields_sbit [] =
{
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_PUTIMGTYPE,
0, 0, 0, 0,
offsetof(mng_sbit, iType), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_IFIMGTYPES,
0, 0xFF, 1, 1,
offsetof(mng_sbit, aBits[0]), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_IFIMGTYPE2 | MNG_FIELD_IFIMGTYPE3 | MNG_FIELD_IFIMGTYPE4 | MNG_FIELD_IFIMGTYPE6,
0, 0xFF, 1, 1,
offsetof(mng_sbit, aBits[1]), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_IFIMGTYPE2 | MNG_FIELD_IFIMGTYPE3 | MNG_FIELD_IFIMGTYPE6,
0, 0xFF, 1, 1,
offsetof(mng_sbit, aBits[2]), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_IFIMGTYPE6,
0, 0xFF, 1, 1,
offsetof(mng_sbit, aBits[3]), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_sPLT
MNG_LOCAL mng_field_descriptor mng_fields_splt [] =
{
{MNG_NULL,
MNG_NULL,
0, 0, 1, 79,
offsetof(mng_splt, zName), MNG_NULL, offsetof(mng_splt, iNamesize)},
{MNG_NULL,
MNG_FIELD_INT,
8, 16, 1, 1,
offsetof(mng_splt, iSampledepth), MNG_NULL, MNG_NULL},
{mng_splt_entries,
MNG_NULL,
0, 0, 0, 0,
MNG_NULL, MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_hIST
MNG_LOCAL mng_field_descriptor mng_fields_hist [] =
{
{mng_hist_entries,
MNG_NULL,
0, 0, 0, 0,
MNG_NULL, MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_tIME
MNG_LOCAL mng_field_descriptor mng_fields_time [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 0xFFFF, 2, 2,
offsetof(mng_time, iYear), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
1, 12, 1, 1,
offsetof(mng_time, iMonth), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
1, 31, 1, 1,
offsetof(mng_time, iDay), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 24, 1, 1,
offsetof(mng_time, iHour), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 60, 1, 1,
offsetof(mng_time, iMinute), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 60, 1, 1,
offsetof(mng_time, iSecond), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
/* ************************************************************************** */
/* JNG chunks */
#ifdef MNG_INCLUDE_JNG
MNG_LOCAL mng_field_descriptor mng_fields_jhdr [] =
{
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_NOHIGHBIT,
1, 0, 4, 4,
offsetof(mng_jhdr, iWidth), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_NOHIGHBIT,
1, 0, 4, 4,
offsetof(mng_jhdr, iHeight), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
8, 16, 1, 1,
offsetof(mng_jhdr, iColortype), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
8, 20, 1, 1,
offsetof(mng_jhdr, iImagesampledepth), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
8, 8, 1, 1,
offsetof(mng_jhdr, iImagecompression), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 8, 1, 1,
offsetof(mng_jhdr, iImageinterlace), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 16, 1, 1,
offsetof(mng_jhdr, iAlphasampledepth), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 8, 1, 1,
offsetof(mng_jhdr, iAlphacompression), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 1, 1,
offsetof(mng_jhdr, iAlphafilter), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 1, 1, 1,
offsetof(mng_jhdr, iAlphainterlace), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifdef MNG_INCLUDE_JNG
#define mng_fields_jdaa mng_fields_idat
#define mng_fields_jdat mng_fields_idat
#endif
/* ************************************************************************** */
/* ************************************************************************** */
/* MNG chunks */
MNG_LOCAL mng_field_descriptor mng_fields_mhdr [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_mhdr, iWidth), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_mhdr, iHeight), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_mhdr, iTicks), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_mhdr, iLayercount), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_mhdr, iFramecount), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_mhdr, iPlaytime), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_mhdr, iSimplicity), MNG_NULL, MNG_NULL}
};
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_LOOP
MNG_LOCAL mng_field_descriptor mng_fields_loop [] =
{
{mng_debunk_loop,
MNG_NULL,
0, 0, 0, 0,
MNG_NULL, MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_LOOP
MNG_LOCAL mng_field_descriptor mng_fields_endl [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 0xFF, 1, 1,
offsetof(mng_endl, iLevel), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_DEFI
MNG_LOCAL mng_field_descriptor mng_fields_defi [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 0xFFFF, 2, 2,
offsetof(mng_defi, iObjectid), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL,
0, 0xFF, 1, 1,
offsetof(mng_defi, iDonotshow), offsetof(mng_defi, bHasdonotshow), MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL,
0, 0xFF, 1, 1,
offsetof(mng_defi, iConcrete), offsetof(mng_defi, bHasconcrete), MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP1,
0, 0, 4, 4,
offsetof(mng_defi, iXlocation), offsetof(mng_defi, bHasloca), MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP1,
0, 0, 4, 4,
offsetof(mng_defi, iYlocation), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP2,
0, 0, 4, 4,
offsetof(mng_defi, iLeftcb), offsetof(mng_defi, bHasclip), MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP2,
0, 0, 4, 4,
offsetof(mng_defi, iRightcb), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP2,
0, 0, 4, 4,
offsetof(mng_defi, iTopcb), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP2,
0, 0, 4, 4,
offsetof(mng_defi, iBottomcb), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_BASI
MNG_LOCAL mng_field_descriptor mng_fields_basi [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_basi, iWidth), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_basi, iHeight), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
1, 16, 1, 1,
offsetof(mng_basi, iBitdepth), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 6, 1, 1,
offsetof(mng_basi, iColortype), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 1, 1,
offsetof(mng_basi, iCompression), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 1, 1,
offsetof(mng_basi, iFilter), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 1, 1, 1,
offsetof(mng_basi, iInterlace), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP1,
0, 0xFFFF, 2, 2,
offsetof(mng_basi, iRed), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP1,
0, 0xFFFF, 2, 2,
offsetof(mng_basi, iGreen), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP1,
0, 0xFFFF, 2, 2,
offsetof(mng_basi, iBlue), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL,
0, 0xFFFF, 2, 2,
offsetof(mng_basi, iAlpha), offsetof(mng_basi, bHasalpha), MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL,
0, 1, 1, 1,
offsetof(mng_basi, iViewable), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_CLON
MNG_LOCAL mng_field_descriptor mng_fields_clon [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 0xFFFF, 2, 2,
offsetof(mng_clon, iSourceid), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0xFFFF, 2, 2,
offsetof(mng_clon, iCloneid), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL,
0, 2, 1, 1,
offsetof(mng_clon, iClonetype), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL,
0, 1, 1, 1,
offsetof(mng_clon, iDonotshow), offsetof(mng_clon, bHasdonotshow), MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL,
0, 1, 1, 1,
offsetof(mng_clon, iConcrete), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP1,
0, 2, 1, 1,
offsetof(mng_clon, iLocationtype), offsetof(mng_clon, bHasloca), MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP1,
0, 0, 4, 4,
offsetof(mng_clon, iLocationx), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP1,
0, 0, 4, 4,
offsetof(mng_clon, iLocationy), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_PAST
MNG_LOCAL mng_field_descriptor mng_fields_past [] =
{
{mng_debunk_past,
MNG_NULL,
0, 0, 0, 0,
MNG_NULL, MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_DISC
MNG_LOCAL mng_field_descriptor mng_fields_disc [] =
{
{mng_disc_entries,
MNG_NULL,
0, 0, 0, 0,
MNG_NULL, MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_BACK
MNG_LOCAL mng_field_descriptor mng_fields_back [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 0xFFFF, 2, 2,
offsetof(mng_back, iRed), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0xFFFF, 2, 2,
offsetof(mng_back, iGreen), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0xFFFF, 2, 2,
offsetof(mng_back, iBlue), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL,
0, 3, 1, 1,
offsetof(mng_back, iMandatory), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL,
0, 0xFFFF, 2, 2,
offsetof(mng_back, iImageid), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL,
0, 1, 1, 1,
offsetof(mng_back, iTile), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_FRAM
MNG_LOCAL mng_field_descriptor mng_fields_fram [] =
{
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL,
0, 4, 1, 1,
offsetof(mng_fram, iMode), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_TERMINATOR | MNG_FIELD_OPTIONAL,
0, 0, 1, 79,
offsetof(mng_fram, zName), MNG_NULL, offsetof(mng_fram, iNamesize)},
{mng_fram_remainder,
MNG_FIELD_OPTIONAL,
0, 0, 0, 0,
MNG_NULL, MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_MOVE
MNG_LOCAL mng_field_descriptor mng_fields_move [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 0xFFFF, 2, 2,
offsetof(mng_move, iFirstid), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0xFFFF, 2, 2,
offsetof(mng_move, iLastid), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 1, 1, 1,
offsetof(mng_move, iMovetype), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_move, iMovex), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_move, iMovey), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_CLIP
MNG_LOCAL mng_field_descriptor mng_fields_clip [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 0xFFFF, 2, 2,
offsetof(mng_clip, iFirstid), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0xFFFF, 2, 2,
offsetof(mng_clip, iLastid), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 1, 1, 1,
offsetof(mng_clip, iCliptype), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_clip, iClipl), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_clip, iClipr), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_clip, iClipt), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_clip, iClipb), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_SHOW
MNG_LOCAL mng_field_descriptor mng_fields_show [] =
{
{MNG_NULL,
MNG_FIELD_INT,
1, 0xFFFF, 2, 2,
offsetof(mng_show, iFirstid), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL,
1, 0xFFFF, 2, 2,
offsetof(mng_show, iLastid), offsetof(mng_show, bHaslastid), MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL,
0, 7, 1, 1,
offsetof(mng_show, iMode), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_TERM
MNG_LOCAL mng_field_descriptor mng_fields_term [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 3, 1, 1,
offsetof(mng_term, iTermaction), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP1,
0, 2, 1, 1,
offsetof(mng_term, iIteraction), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP1,
0, 0, 4, 4,
offsetof(mng_term, iDelay), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP1,
0, 0, 4, 4,
offsetof(mng_term, iItermax), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_SAVE
MNG_LOCAL mng_field_descriptor mng_fields_save [] =
{
{mng_save_entries,
MNG_NULL,
0, 0, 0, 0,
MNG_NULL, MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_SEEK
MNG_LOCAL mng_field_descriptor mng_fields_seek [] =
{
{MNG_NULL,
MNG_NULL,
0, 0, 1, 79,
offsetof(mng_seek, zName), MNG_NULL, offsetof(mng_seek, iNamesize)}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_eXPI
MNG_LOCAL mng_field_descriptor mng_fields_expi [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 0xFFFF, 2, 2,
offsetof(mng_expi, iSnapshotid), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_NULL,
0, 0, 1, 79,
offsetof(mng_expi, zName), MNG_NULL, offsetof(mng_expi, iNamesize)}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_fPRI
MNG_LOCAL mng_field_descriptor mng_fields_fpri [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 1, 1, 1,
offsetof(mng_fpri, iDeltatype), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0xFF, 1, 1,
offsetof(mng_fpri, iPriority), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_nEED
MNG_LOCAL mng_field_descriptor mng_fields_need [] =
{
{MNG_NULL,
MNG_NULL,
0, 0, 1, 0,
offsetof(mng_need, zKeywords), MNG_NULL, offsetof(mng_need, iKeywordssize)}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_pHYg
#define mng_fields_phyg mng_fields_phys
#endif
/* ************************************************************************** */
#ifndef MNG_NO_DELTA_PNG
MNG_LOCAL mng_field_descriptor mng_fields_dhdr [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 0xFFFF, 2, 2,
offsetof(mng_dhdr, iObjectid), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 2, 1, 1,
offsetof(mng_dhdr, iImagetype), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 7, 1, 1,
offsetof(mng_dhdr, iDeltatype), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP1,
0, 0, 4, 4,
offsetof(mng_dhdr, iBlockwidth), offsetof(mng_dhdr, bHasblocksize), MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP1,
0, 0, 4, 4,
offsetof(mng_dhdr, iBlockheight), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP2,
0, 0, 4, 4,
offsetof(mng_dhdr, iBlockx), offsetof(mng_dhdr, bHasblockloc), MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT | MNG_FIELD_OPTIONAL | MNG_FIELD_GROUP2,
0, 0, 4, 4,
offsetof(mng_dhdr, iBlocky), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_NO_DELTA_PNG
MNG_LOCAL mng_field_descriptor mng_fields_prom [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 14, 1, 1,
offsetof(mng_prom, iColortype), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 16, 1, 1,
offsetof(mng_prom, iSampledepth), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 1, 1, 1,
offsetof(mng_prom, iFilltype), MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_NO_DELTA_PNG
MNG_LOCAL mng_field_descriptor mng_fields_pplt [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 5, 1, 1,
offsetof(mng_pplt, iDeltatype), MNG_NULL, MNG_NULL},
{mng_pplt_entries,
MNG_NULL,
0, 0, 0, 0,
MNG_NULL, MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_NO_DELTA_PNG
MNG_LOCAL mng_field_descriptor mng_fields_drop [] =
{
{mng_drop_entries,
MNG_NULL,
0, 0, 0, 0,
MNG_NULL, MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_NO_DELTA_PNG
#ifndef MNG_SKIPCHUNK_DBYK
MNG_LOCAL mng_field_descriptor mng_fields_dbyk [] =
{
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_dbyk, iChunkname), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 1, 1, 1,
offsetof(mng_dbyk, iPolarity), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_NULL,
0, 0, 1, 0,
offsetof(mng_dbyk, zKeywords), MNG_NULL, offsetof(mng_dbyk, iKeywordssize)}
};
#endif
#endif
/* ************************************************************************** */
#ifndef MNG_NO_DELTA_PNG
#ifndef MNG_SKIPCHUNK_ORDR
MNG_LOCAL mng_field_descriptor mng_fields_ordr [] =
{
{mng_drop_entries,
MNG_NULL,
0, 0, 0, 0,
MNG_NULL, MNG_NULL, MNG_NULL}
};
#endif
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_MAGN
MNG_LOCAL mng_field_descriptor mng_fields_magn [] =
{
{mng_debunk_magn,
MNG_NULL,
0, 0, 0, 0,
MNG_NULL, MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifdef MNG_INCLUDE_MPNG_PROPOSAL
MNG_LOCAL mng_field_descriptor mng_fields_mpng [] =
{
{MNG_NULL,
MNG_FIELD_INT,
1, 0, 4, 4,
offsetof(mng_mpng, iFramewidth), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
1, 0, 4, 4,
offsetof(mng_mpng, iFrameheight), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0xFFFF, 2, 2,
offsetof(mng_mpng, iNumplays), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
1, 0xFFFF, 2, 2,
offsetof(mng_mpng, iTickspersec), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 1, 1,
offsetof(mng_mpng, iCompressionmethod), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_DEFLATED,
0, 0, 1, 0,
offsetof(mng_mpng, pFrames), MNG_NULL, offsetof(mng_mpng, iFramessize)}
};
#endif
/* ************************************************************************** */
#ifdef MNG_INCLUDE_ANG_PROPOSAL
MNG_LOCAL mng_field_descriptor mng_fields_ahdr [] =
{
{MNG_NULL,
MNG_FIELD_INT,
1, 0, 4, 4,
offsetof(mng_ahdr, iNumframes), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_ahdr, iTickspersec), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 0, 4, 4,
offsetof(mng_ahdr, iNumplays), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
1, 0, 4, 4,
offsetof(mng_ahdr, iTilewidth), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
1, 0, 4, 4,
offsetof(mng_ahdr, iTileheight), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 1, 1, 1,
offsetof(mng_ahdr, iInterlace), MNG_NULL, MNG_NULL},
{MNG_NULL,
MNG_FIELD_INT,
0, 1, 1, 1,
offsetof(mng_ahdr, iStillused), MNG_NULL, MNG_NULL}
};
MNG_LOCAL mng_field_descriptor mng_fields_adat [] =
{
{mng_adat_tiles,
MNG_NULL,
0, 0, 0, 0,
MNG_NULL, MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_evNT
MNG_LOCAL mng_field_descriptor mng_fields_evnt [] =
{
{mng_evnt_entries,
MNG_NULL,
0, 0, 0, 0,
MNG_NULL, MNG_NULL, MNG_NULL}
};
#endif
/* ************************************************************************** */
MNG_LOCAL mng_field_descriptor mng_fields_unknown [] =
{
{MNG_NULL,
MNG_NULL,
0, 0, 1, 0,
offsetof(mng_unknown_chunk, pData), MNG_NULL, offsetof(mng_unknown_chunk, iDatasize)}
};
/* ************************************************************************** */
/* ************************************************************************** */
/* PNG chunks */
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_ihdr =
{mng_it_png, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_ihdr,
mng_fields_ihdr, (sizeof(mng_fields_ihdr) / sizeof(mng_field_descriptor)),
MNG_DESCR_GLOBAL,
MNG_NULL,
MNG_DESCR_NOIHDR | MNG_DESCR_NOJHDR | MNG_DESCR_NOBASI | MNG_DESCR_NOIDAT | MNG_DESCR_NOPLTE};
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_plte =
{mng_it_png, mng_create_none, 0, offsetof(mng_plte, bEmpty),
MNG_NULL, MNG_NULL, mng_special_plte,
mng_fields_plte, (sizeof(mng_fields_plte) / sizeof(mng_field_descriptor)),
MNG_DESCR_GLOBAL | MNG_DESCR_EMPTYEMBED,
MNG_DESCR_GenHDR,
MNG_DESCR_NOIDAT | MNG_DESCR_NOJDAT | MNG_DESCR_NOJDAA};
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_idat =
{mng_it_png, mng_create_none, 0, offsetof(mng_idat, bEmpty),
MNG_NULL, MNG_NULL, mng_special_idat,
mng_fields_idat, (sizeof(mng_fields_idat) / sizeof(mng_field_descriptor)),
MNG_DESCR_EMPTYEMBED,
MNG_DESCR_GenHDR,
MNG_DESCR_NOJSEP};
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_iend =
{mng_it_png, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_iend,
MNG_NULL, 0,
MNG_DESCR_EMPTY | MNG_DESCR_EMPTYEMBED,
MNG_DESCR_GenHDR,
MNG_NULL};
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_trns =
{mng_it_png, mng_create_none, 0, offsetof(mng_trns, bEmpty),
MNG_NULL, MNG_NULL, mng_special_trns,
mng_fields_trns, (sizeof(mng_fields_trns) / sizeof(mng_field_descriptor)),
MNG_DESCR_GLOBAL | MNG_DESCR_EMPTYEMBED,
MNG_DESCR_GenHDR,
MNG_DESCR_NOIDAT | MNG_DESCR_NOJDAT | MNG_DESCR_NOJDAA};
#ifndef MNG_SKIPCHUNK_gAMA
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_gama =
{mng_it_png, mng_create_none, 0, offsetof(mng_gama, bEmpty),
MNG_NULL, MNG_NULL, mng_special_gama,
mng_fields_gama, (sizeof(mng_fields_gama) / sizeof(mng_field_descriptor)),
MNG_DESCR_GLOBAL | MNG_DESCR_EMPTYEMBED | MNG_DESCR_EMPTYGLOBAL,
MNG_DESCR_GenHDR,
MNG_DESCR_NOPLTE | MNG_DESCR_NOIDAT | MNG_DESCR_NOJDAT | MNG_DESCR_NOJDAA};
#endif
#ifndef MNG_SKIPCHUNK_cHRM
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_chrm =
{mng_it_png, mng_create_none, 0, offsetof(mng_chrm, bEmpty),
MNG_NULL, MNG_NULL, mng_special_chrm,
mng_fields_chrm, (sizeof(mng_fields_chrm) / sizeof(mng_field_descriptor)),
MNG_DESCR_GLOBAL | MNG_DESCR_EMPTYEMBED | MNG_DESCR_EMPTYGLOBAL,
MNG_DESCR_GenHDR,
MNG_DESCR_NOPLTE | MNG_DESCR_NOIDAT | MNG_DESCR_NOJDAT | MNG_DESCR_NOJDAA};
#endif
#ifndef MNG_SKIPCHUNK_sRGB
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_srgb =
{mng_it_png, mng_create_none, 0, offsetof(mng_srgb, bEmpty),
MNG_NULL, MNG_NULL, mng_special_srgb,
mng_fields_srgb, (sizeof(mng_fields_srgb) / sizeof(mng_field_descriptor)),
MNG_DESCR_GLOBAL | MNG_DESCR_EMPTYEMBED | MNG_DESCR_EMPTYGLOBAL,
MNG_DESCR_GenHDR,
MNG_DESCR_NOPLTE | MNG_DESCR_NOIDAT | MNG_DESCR_NOJDAT | MNG_DESCR_NOJDAA};
#endif
#ifndef MNG_SKIPCHUNK_iCCP
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_iccp =
{mng_it_png, mng_create_none, 0, offsetof(mng_iccp, bEmpty),
MNG_NULL, MNG_NULL, mng_special_iccp,
mng_fields_iccp, (sizeof(mng_fields_iccp) / sizeof(mng_field_descriptor)),
MNG_DESCR_GLOBAL | MNG_DESCR_EMPTYEMBED | MNG_DESCR_EMPTYGLOBAL,
MNG_DESCR_GenHDR,
MNG_DESCR_NOPLTE | MNG_DESCR_NOIDAT | MNG_DESCR_NOJDAT | MNG_DESCR_NOJDAA};
#endif
#ifndef MNG_SKIPCHUNK_tEXt
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_text =
{mng_it_png, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_text,
mng_fields_text, (sizeof(mng_fields_text) / sizeof(mng_field_descriptor)),
MNG_DESCR_GLOBAL,
MNG_DESCR_GenHDR,
MNG_NULL};
#endif
#ifndef MNG_SKIPCHUNK_zTXt
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_ztxt =
{mng_it_png, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_ztxt,
mng_fields_ztxt, (sizeof(mng_fields_ztxt) / sizeof(mng_field_descriptor)),
MNG_DESCR_GLOBAL,
MNG_DESCR_GenHDR,
MNG_NULL};
#endif
#ifndef MNG_SKIPCHUNK_iTXt
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_itxt =
{mng_it_png, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_itxt,
mng_fields_itxt, (sizeof(mng_fields_itxt) / sizeof(mng_field_descriptor)),
MNG_DESCR_GLOBAL,
MNG_DESCR_GenHDR,
MNG_NULL};
#endif
#ifndef MNG_SKIPCHUNK_bKGD
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_bkgd =
{mng_it_png, mng_create_none, 0, offsetof(mng_bkgd, bEmpty),
MNG_NULL, MNG_NULL, mng_special_bkgd,
mng_fields_bkgd, (sizeof(mng_fields_bkgd) / sizeof(mng_field_descriptor)),
MNG_DESCR_GLOBAL | MNG_DESCR_EMPTYEMBED | MNG_DESCR_EMPTYGLOBAL,
MNG_DESCR_GenHDR,
MNG_DESCR_NOIDAT | MNG_DESCR_NOJDAT | MNG_DESCR_NOJDAA};
#endif
#ifndef MNG_SKIPCHUNK_pHYs
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_phys =
{mng_it_png, mng_create_none, 0, offsetof(mng_phys, bEmpty),
MNG_NULL, MNG_NULL, mng_special_phys,
mng_fields_phys, (sizeof(mng_fields_phys) / sizeof(mng_field_descriptor)),
MNG_DESCR_GLOBAL | MNG_DESCR_EMPTYEMBED | MNG_DESCR_EMPTYGLOBAL,
MNG_DESCR_GenHDR,
MNG_DESCR_NOIDAT | MNG_DESCR_NOJDAT | MNG_DESCR_NOJDAA};
#endif
#ifndef MNG_SKIPCHUNK_sBIT
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_sbit =
{mng_it_png, mng_create_none, 0, offsetof(mng_sbit, bEmpty),
MNG_NULL, MNG_NULL, mng_special_sbit,
mng_fields_sbit, (sizeof(mng_fields_sbit) / sizeof(mng_field_descriptor)),
MNG_DESCR_GLOBAL | MNG_DESCR_EMPTYEMBED | MNG_DESCR_EMPTYGLOBAL,
MNG_DESCR_GenHDR,
MNG_DESCR_NOIDAT | MNG_DESCR_NOJDAT | MNG_DESCR_NOJDAA};
#endif
#ifndef MNG_SKIPCHUNK_sPLT
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_splt =
{mng_it_png, mng_create_none, 0, offsetof(mng_splt, bEmpty),
MNG_NULL, MNG_NULL, mng_special_splt,
mng_fields_splt, (sizeof(mng_fields_splt) / sizeof(mng_field_descriptor)),
MNG_DESCR_GLOBAL | MNG_DESCR_EMPTYEMBED | MNG_DESCR_EMPTYGLOBAL,
MNG_DESCR_GenHDR,
MNG_DESCR_NOIDAT | MNG_DESCR_NOJDAT | MNG_DESCR_NOJDAA};
#endif
#ifndef MNG_SKIPCHUNK_hIST
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_hist =
{mng_it_png, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_hist,
mng_fields_hist, (sizeof(mng_fields_hist) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_GenHDR | MNG_DESCR_PLTE,
MNG_DESCR_NOIDAT | MNG_DESCR_NOJDAT | MNG_DESCR_NOJDAA};
#endif
#ifndef MNG_SKIPCHUNK_tIME
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_time =
{mng_it_png, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_time,
mng_fields_time, (sizeof(mng_fields_time) / sizeof(mng_field_descriptor)),
MNG_DESCR_GLOBAL,
MNG_DESCR_GenHDR,
MNG_NULL};
#endif
/* ************************************************************************** */
/* JNG chunks */
#ifdef MNG_INCLUDE_JNG
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_jhdr =
{mng_it_jng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_jhdr,
mng_fields_jhdr, (sizeof(mng_fields_jhdr) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_NULL,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifdef MNG_INCLUDE_JNG
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_jdaa =
{mng_it_jng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_jdaa,
mng_fields_jdaa, (sizeof(mng_fields_jdaa) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_JngHDR,
MNG_DESCR_NOJSEP};
#endif
#ifdef MNG_INCLUDE_JNG
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_jdat =
{mng_it_jng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_jdat,
mng_fields_jdat, (sizeof(mng_fields_jdat) / sizeof(mng_field_descriptor)),
MNG_DESCR_EMPTYEMBED,
MNG_DESCR_JngHDR,
MNG_NULL};
#endif
#ifdef MNG_INCLUDE_JNG
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_jsep =
{mng_it_jng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_jsep,
MNG_NULL, 0,
MNG_DESCR_EMPTY | MNG_DESCR_EMPTYEMBED,
MNG_DESCR_JngHDR,
MNG_DESCR_NOJSEP};
#endif
/* ************************************************************************** */
/* MNG chunks */
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_mhdr =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_mhdr,
mng_fields_mhdr, (sizeof(mng_fields_mhdr) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_NULL,
MNG_DESCR_NOMHDR | MNG_DESCR_NOIHDR | MNG_DESCR_NOJHDR};
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_mend =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_mend,
MNG_NULL, 0,
MNG_DESCR_EMPTY | MNG_DESCR_EMPTYGLOBAL,
MNG_DESCR_MHDR,
MNG_NULL};
#ifndef MNG_SKIPCHUNK_LOOP
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_loop =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_loop,
mng_fields_loop, (sizeof(mng_fields_loop) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_endl =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_endl,
mng_fields_endl, (sizeof(mng_fields_endl) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_DEFI
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_defi =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_defi,
mng_fields_defi, (sizeof(mng_fields_defi) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_BASI
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_basi =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_basi,
mng_fields_basi, (sizeof(mng_fields_basi) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_CLON
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_clon =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_clon,
mng_fields_clon, (sizeof(mng_fields_clon) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_PAST
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_past =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_past,
mng_fields_past, (sizeof(mng_fields_past) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_DISC
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_disc =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_disc,
mng_fields_disc, (sizeof(mng_fields_disc) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_BACK
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_back =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_back,
mng_fields_back, (sizeof(mng_fields_back) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_FRAM
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_fram =
{mng_it_mng, mng_create_none, 0, offsetof(mng_fram, bEmpty),
MNG_NULL, MNG_NULL, mng_special_fram,
mng_fields_fram, (sizeof(mng_fields_fram) / sizeof(mng_field_descriptor)),
MNG_DESCR_EMPTY | MNG_DESCR_EMPTYGLOBAL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_MOVE
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_move =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_move,
mng_fields_move, (sizeof(mng_fields_move) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_CLIP
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_clip =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_clip,
mng_fields_clip, (sizeof(mng_fields_clip) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_SHOW
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_show =
{mng_it_mng, mng_create_none, 0, offsetof(mng_show, bEmpty),
MNG_NULL, MNG_NULL, mng_special_show,
mng_fields_show, (sizeof(mng_fields_show) / sizeof(mng_field_descriptor)),
MNG_DESCR_EMPTY | MNG_DESCR_EMPTYGLOBAL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_TERM
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_term =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_term,
mng_fields_term, (sizeof(mng_fields_term) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR | MNG_DESCR_NOTERM | MNG_DESCR_NOLOOP};
#endif
#ifndef MNG_SKIPCHUNK_SAVE
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_save =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_save,
mng_fields_save, (sizeof(mng_fields_save) / sizeof(mng_field_descriptor)),
MNG_DESCR_EMPTY | MNG_DESCR_EMPTYGLOBAL,
MNG_DESCR_MHDR,
MNG_DESCR_NOSAVE | MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_SEEK
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_seek =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_seek,
mng_fields_seek, (sizeof(mng_fields_seek) / sizeof(mng_field_descriptor)),
MNG_DESCR_EMPTY | MNG_DESCR_EMPTYGLOBAL,
MNG_DESCR_MHDR | MNG_DESCR_SAVE,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_eXPI
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_expi =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_expi,
mng_fields_expi, (sizeof(mng_fields_expi) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_fPRI
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_fpri =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_fpri,
mng_fields_fpri, (sizeof(mng_fields_fpri) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_nEED
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_need =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_need,
mng_fields_need, (sizeof(mng_fields_need) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_pHYg
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_phyg =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_phyg,
mng_fields_phyg, (sizeof(mng_fields_phyg) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_NO_DELTA_PNG
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_dhdr =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_dhdr,
mng_fields_dhdr, (sizeof(mng_fields_dhdr) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_NO_DELTA_PNG
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_prom =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_prom,
mng_fields_prom, (sizeof(mng_fields_prom) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR | MNG_DESCR_DHDR,
MNG_NULL};
#endif
#ifndef MNG_NO_DELTA_PNG
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_ipng =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_ipng,
MNG_NULL, 0,
MNG_DESCR_EMPTY | MNG_DESCR_EMPTYEMBED,
MNG_DESCR_MHDR | MNG_DESCR_DHDR,
MNG_NULL};
#endif
#ifndef MNG_NO_DELTA_PNG
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_pplt =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_pplt,
mng_fields_pplt, (sizeof(mng_fields_pplt) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR | MNG_DESCR_DHDR,
MNG_NULL};
#endif
#ifndef MNG_NO_DELTA_PNG
#ifdef MNG_INCLUDE_JNG
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_ijng =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_ijng,
MNG_NULL, 0,
MNG_DESCR_EMPTY | MNG_DESCR_EMPTYEMBED,
MNG_DESCR_MHDR | MNG_DESCR_DHDR,
MNG_NULL};
#endif
#endif
#ifndef MNG_NO_DELTA_PNG
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_drop =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_drop,
mng_fields_drop, (sizeof(mng_fields_drop) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR | MNG_DESCR_DHDR,
MNG_NULL};
#endif
#ifndef MNG_NO_DELTA_PNG
#ifndef MNG_SKIPCHUNK_DBYK
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_dbyk =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_dbyk,
mng_fields_dbyk, (sizeof(mng_fields_dbyk) / sizeof(mng_field_descriptor)),
MNG_DESCR_EMPTY | MNG_DESCR_EMPTYEMBED,
MNG_DESCR_MHDR | MNG_DESCR_DHDR,
MNG_NULL};
#endif
#endif
#ifndef MNG_NO_DELTA_PNG
#ifndef MNG_SKIPCHUNK_ORDR
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_ordr =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_ordr,
mng_fields_ordr, (sizeof(mng_fields_ordr) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR | MNG_DESCR_DHDR,
MNG_NULL};
#endif
#endif
#ifndef MNG_SKIPCHUNK_MAGN
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_magn =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_magn,
mng_fields_magn, (sizeof(mng_fields_magn) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOIHDR | MNG_DESCR_NOBASI | MNG_DESCR_NODHDR | MNG_DESCR_NOJHDR};
#endif
#ifndef MNG_SKIPCHUNK_evNT
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_evnt =
{mng_it_mng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_evnt,
mng_fields_evnt, (sizeof(mng_fields_evnt) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_MHDR,
MNG_DESCR_NOSAVE};
#endif
#ifdef MNG_INCLUDE_MPNG_PROPOSAL
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_mpng =
{mng_it_mpng, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_mpng,
mng_fields_mpng, (sizeof(mng_fields_mpng) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_NULL,
MNG_DESCR_NOMHDR | MNG_DESCR_NOIDAT | MNG_DESCR_NOJDAT};
#endif
#ifdef MNG_INCLUDE_ANG_PROPOSAL
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_ahdr =
{mng_it_ang, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_ahdr,
mng_fields_ahdr, (sizeof(mng_fields_ahdr) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_IHDR,
MNG_DESCR_NOMHDR | MNG_DESCR_NOJHDR | MNG_DESCR_NOIDAT};
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_adat =
{mng_it_ang, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_adat,
mng_fields_adat, (sizeof(mng_fields_adat) / sizeof(mng_field_descriptor)),
MNG_NULL,
MNG_DESCR_IHDR,
MNG_DESCR_NOMHDR | MNG_DESCR_NOJHDR};
#endif
/* ************************************************************************** */
/* ************************************************************************** */
/* the good ol' unknown babe */
MNG_LOCAL mng_chunk_descriptor mng_chunk_descr_unknown =
{mng_it_png, mng_create_none, 0, 0,
MNG_NULL, MNG_NULL, mng_special_unknown,
mng_fields_unknown, (sizeof(mng_fields_unknown) / sizeof(mng_field_descriptor)),
MNG_DESCR_EMPTY | MNG_DESCR_EMPTYEMBED,
MNG_NULL,
MNG_NULL};
/* ************************************************************************** */
/* ************************************************************************** */
MNG_LOCAL mng_chunk_header mng_chunk_unknown =
{MNG_UINT_HUH, mng_init_general, mng_free_unknown,
mng_read_general, mng_write_unknown, mng_assign_unknown,
0, 0, sizeof(mng_unknown_chunk), &mng_chunk_descr_unknown};
/* ************************************************************************** */
/* the table-idea & binary search code was adapted from
libpng 1.1.0 (pngread.c) */
/* NOTE1: the table must remain sorted by chunkname, otherwise the binary
search will break !!! (ps. watch upper-/lower-case chunknames !!) */
/* NOTE2: the layout must remain equal to the header part of all the
chunk-structures (yes, that means even the pNext and pPrev fields;
it's wasting a bit of space, but hey, the code is a lot easier) */
MNG_LOCAL mng_chunk_header mng_chunk_table [] =
{
#ifndef MNG_SKIPCHUNK_BACK
{MNG_UINT_BACK, mng_init_general, mng_free_general, mng_read_general, mng_write_back, mng_assign_general, 0, 0, sizeof(mng_back), &mng_chunk_descr_back},
#endif
#ifndef MNG_SKIPCHUNK_BASI
{MNG_UINT_BASI, mng_init_general, mng_free_general, mng_read_general, mng_write_basi, mng_assign_general, 0, 0, sizeof(mng_basi), &mng_chunk_descr_basi},
#endif
#ifndef MNG_SKIPCHUNK_CLIP
{MNG_UINT_CLIP, mng_init_general, mng_free_general, mng_read_general, mng_write_clip, mng_assign_general, 0, 0, sizeof(mng_clip), &mng_chunk_descr_clip},
#endif
#ifndef MNG_SKIPCHUNK_CLON
{MNG_UINT_CLON, mng_init_general, mng_free_general, mng_read_general, mng_write_clon, mng_assign_general, 0, 0, sizeof(mng_clon), &mng_chunk_descr_clon},
#endif
#ifndef MNG_NO_DELTA_PNG
#ifndef MNG_SKIPCHUNK_DBYK
{MNG_UINT_DBYK, mng_init_general, mng_free_dbyk, mng_read_general, mng_write_dbyk, mng_assign_dbyk, 0, 0, sizeof(mng_dbyk), &mng_chunk_descr_dbyk},
#endif
#endif
#ifndef MNG_SKIPCHUNK_DEFI
{MNG_UINT_DEFI, mng_init_general, mng_free_general, mng_read_general, mng_write_defi, mng_assign_general, 0, 0, sizeof(mng_defi), &mng_chunk_descr_defi},
#endif
#ifndef MNG_NO_DELTA_PNG
{MNG_UINT_DHDR, mng_init_general, mng_free_general, mng_read_general, mng_write_dhdr, mng_assign_general, 0, 0, sizeof(mng_dhdr), &mng_chunk_descr_dhdr},
#endif
#ifndef MNG_SKIPCHUNK_DISC
{MNG_UINT_DISC, mng_init_general, mng_free_disc, mng_read_general, mng_write_disc, mng_assign_disc, 0, 0, sizeof(mng_disc), &mng_chunk_descr_disc},
#endif
#ifndef MNG_NO_DELTA_PNG
#ifndef MNG_SKIPCHUNK_DROP
{MNG_UINT_DROP, mng_init_general, mng_free_drop, mng_read_general, mng_write_drop, mng_assign_drop, 0, 0, sizeof(mng_drop), &mng_chunk_descr_drop},
#endif
#endif
#ifndef MNG_SKIPCHUNK_LOOP
{MNG_UINT_ENDL, mng_init_general, mng_free_general, mng_read_general, mng_write_endl, mng_assign_general, 0, 0, sizeof(mng_endl), &mng_chunk_descr_endl},
#endif
#ifndef MNG_SKIPCHUNK_FRAM
{MNG_UINT_FRAM, mng_init_general, mng_free_fram, mng_read_general, mng_write_fram, mng_assign_fram, 0, 0, sizeof(mng_fram), &mng_chunk_descr_fram},
#endif
{MNG_UINT_IDAT, mng_init_general, mng_free_idat, mng_read_general, mng_write_idat, mng_assign_idat, 0, 0, sizeof(mng_idat), &mng_chunk_descr_idat}, /* 12-th element! */
{MNG_UINT_IEND, mng_init_general, mng_free_general, mng_read_general, mng_write_iend, mng_assign_general, 0, 0, sizeof(mng_iend), &mng_chunk_descr_iend},
{MNG_UINT_IHDR, mng_init_general, mng_free_general, mng_read_general, mng_write_ihdr, mng_assign_general, 0, 0, sizeof(mng_ihdr), &mng_chunk_descr_ihdr},
#ifndef MNG_NO_DELTA_PNG
#ifdef MNG_INCLUDE_JNG
{MNG_UINT_IJNG, mng_init_general, mng_free_general, mng_read_general, mng_write_ijng, mng_assign_general, 0, 0, sizeof(mng_ijng), &mng_chunk_descr_ijng},
#endif
{MNG_UINT_IPNG, mng_init_general, mng_free_general, mng_read_general, mng_write_ipng, mng_assign_general, 0, 0, sizeof(mng_ipng), &mng_chunk_descr_ipng},
#endif
#ifdef MNG_INCLUDE_JNG
{MNG_UINT_JDAA, mng_init_general, mng_free_jdaa, mng_read_general, mng_write_jdaa, mng_assign_jdaa, 0, 0, sizeof(mng_jdaa), &mng_chunk_descr_jdaa},
{MNG_UINT_JDAT, mng_init_general, mng_free_jdat, mng_read_general, mng_write_jdat, mng_assign_jdat, 0, 0, sizeof(mng_jdat), &mng_chunk_descr_jdat},
{MNG_UINT_JHDR, mng_init_general, mng_free_general, mng_read_general, mng_write_jhdr, mng_assign_general, 0, 0, sizeof(mng_jhdr), &mng_chunk_descr_jhdr},
{MNG_UINT_JSEP, mng_init_general, mng_free_general, mng_read_general, mng_write_jsep, mng_assign_general, 0, 0, sizeof(mng_jsep), &mng_chunk_descr_jsep},
{MNG_UINT_JdAA, mng_init_general, mng_free_jdaa, mng_read_general, mng_write_jdaa, mng_assign_jdaa, 0, 0, sizeof(mng_jdaa), &mng_chunk_descr_jdaa},
#endif
#ifndef MNG_SKIPCHUNK_LOOP
{MNG_UINT_LOOP, mng_init_general, mng_free_loop, mng_read_general, mng_write_loop, mng_assign_loop, 0, 0, sizeof(mng_loop), &mng_chunk_descr_loop},
#endif
#ifndef MNG_SKIPCHUNK_MAGN
{MNG_UINT_MAGN, mng_init_general, mng_free_general, mng_read_general, mng_write_magn, mng_assign_general, 0, 0, sizeof(mng_magn), &mng_chunk_descr_magn},
#endif
{MNG_UINT_MEND, mng_init_general, mng_free_general, mng_read_general, mng_write_mend, mng_assign_general, 0, 0, sizeof(mng_mend), &mng_chunk_descr_mend},
{MNG_UINT_MHDR, mng_init_general, mng_free_general, mng_read_general, mng_write_mhdr, mng_assign_general, 0, 0, sizeof(mng_mhdr), &mng_chunk_descr_mhdr},
#ifndef MNG_SKIPCHUNK_MOVE
{MNG_UINT_MOVE, mng_init_general, mng_free_general, mng_read_general, mng_write_move, mng_assign_general, 0, 0, sizeof(mng_move), &mng_chunk_descr_move},
#endif
#ifndef MNG_NO_DELTA_PNG
#ifndef MNG_SKIPCHUNK_ORDR
{MNG_UINT_ORDR, mng_init_general, mng_free_ordr, mng_read_general, mng_write_ordr, mng_assign_ordr, 0, 0, sizeof(mng_ordr), &mng_chunk_descr_ordr},
#endif
#endif
#ifndef MNG_SKIPCHUNK_PAST
{MNG_UINT_PAST, mng_init_general, mng_free_past, mng_read_general, mng_write_past, mng_assign_past, 0, 0, sizeof(mng_past), &mng_chunk_descr_past},
#endif
{MNG_UINT_PLTE, mng_init_general, mng_free_general, mng_read_general, mng_write_plte, mng_assign_general, 0, 0, sizeof(mng_plte), &mng_chunk_descr_plte},
#ifndef MNG_NO_DELTA_PNG
{MNG_UINT_PPLT, mng_init_general, mng_free_general, mng_read_general, mng_write_pplt, mng_assign_general, 0, 0, sizeof(mng_pplt), &mng_chunk_descr_pplt},
{MNG_UINT_PROM, mng_init_general, mng_free_general, mng_read_general, mng_write_prom, mng_assign_general, 0, 0, sizeof(mng_prom), &mng_chunk_descr_prom},
#endif
#ifndef MNG_SKIPCHUNK_SAVE
{MNG_UINT_SAVE, mng_init_general, mng_free_save, mng_read_general, mng_write_save, mng_assign_save, 0, 0, sizeof(mng_save), &mng_chunk_descr_save},
#endif
#ifndef MNG_SKIPCHUNK_SEEK
{MNG_UINT_SEEK, mng_init_general, mng_free_seek, mng_read_general, mng_write_seek, mng_assign_seek, 0, 0, sizeof(mng_seek), &mng_chunk_descr_seek},
#endif
#ifndef MNG_SKIPCHUNK_SHOW
{MNG_UINT_SHOW, mng_init_general, mng_free_general, mng_read_general, mng_write_show, mng_assign_general, 0, 0, sizeof(mng_show), &mng_chunk_descr_show},
#endif
#ifndef MNG_SKIPCHUNK_TERM
{MNG_UINT_TERM, mng_init_general, mng_free_general, mng_read_general, mng_write_term, mng_assign_general, 0, 0, sizeof(mng_term), &mng_chunk_descr_term},
#endif
#ifdef MNG_INCLUDE_ANG_PROPOSAL
{MNG_UINT_adAT, mng_init_general, mng_free_adat, mng_read_general, mng_write_adat, mng_assign_adat, 0, 0, sizeof(mng_adat), &mng_chunk_descr_adat},
{MNG_UINT_ahDR, mng_init_general, mng_free_general, mng_read_general, mng_write_ahdr, mng_assign_ahdr, 0, 0, sizeof(mng_ahdr), &mng_chunk_descr_ahdr},
#endif
#ifndef MNG_SKIPCHUNK_bKGD
{MNG_UINT_bKGD, mng_init_general, mng_free_general, mng_read_general, mng_write_bkgd, mng_assign_general, 0, 0, sizeof(mng_bkgd), &mng_chunk_descr_bkgd},
#endif
#ifndef MNG_SKIPCHUNK_cHRM
{MNG_UINT_cHRM, mng_init_general, mng_free_general, mng_read_general, mng_write_chrm, mng_assign_general, 0, 0, sizeof(mng_chrm), &mng_chunk_descr_chrm},
#endif
#ifndef MNG_SKIPCHUNK_eXPI
{MNG_UINT_eXPI, mng_init_general, mng_free_expi, mng_read_general, mng_write_expi, mng_assign_expi, 0, 0, sizeof(mng_expi), &mng_chunk_descr_expi},
#endif
#ifndef MNG_SKIPCHUNK_evNT
{MNG_UINT_evNT, mng_init_general, mng_free_evnt, mng_read_general, mng_write_evnt, mng_assign_evnt, 0, 0, sizeof(mng_evnt), &mng_chunk_descr_evnt},
#endif
#ifndef MNG_SKIPCHUNK_fPRI
{MNG_UINT_fPRI, mng_init_general, mng_free_general, mng_read_general, mng_write_fpri, mng_assign_general, 0, 0, sizeof(mng_fpri), &mng_chunk_descr_fpri},
#endif
#ifndef MNG_SKIPCHUNK_gAMA
{MNG_UINT_gAMA, mng_init_general, mng_free_general, mng_read_general, mng_write_gama, mng_assign_general, 0, 0, sizeof(mng_gama), &mng_chunk_descr_gama},
#endif
#ifndef MNG_SKIPCHUNK_hIST
{MNG_UINT_hIST, mng_init_general, mng_free_general, mng_read_general, mng_write_hist, mng_assign_general, 0, 0, sizeof(mng_hist), &mng_chunk_descr_hist},
#endif
#ifndef MNG_SKIPCHUNK_iCCP
{MNG_UINT_iCCP, mng_init_general, mng_free_iccp, mng_read_general, mng_write_iccp, mng_assign_iccp, 0, 0, sizeof(mng_iccp), &mng_chunk_descr_iccp},
#endif
#ifndef MNG_SKIPCHUNK_iTXt
{MNG_UINT_iTXt, mng_init_general, mng_free_itxt, mng_read_general, mng_write_itxt, mng_assign_itxt, 0, 0, sizeof(mng_itxt), &mng_chunk_descr_itxt},
#endif
#ifdef MNG_INCLUDE_MPNG_PROPOSAL
{MNG_UINT_mpNG, mng_init_general, mng_free_mpng, mng_read_general, mng_write_mpng, mng_assign_mpng, 0, 0, sizeof(mng_mpng), &mng_chunk_descr_mpng},
#endif
#ifndef MNG_SKIPCHUNK_nEED
{MNG_UINT_nEED, mng_init_general, mng_free_need, mng_read_general, mng_write_need, mng_assign_need, 0, 0, sizeof(mng_need), &mng_chunk_descr_need},
#endif
/* TODO: {MNG_UINT_oFFs, 0, 0, 0, 0, 0, 0}, */
/* TODO: {MNG_UINT_pCAL, 0, 0, 0, 0, 0, 0}, */
#ifndef MNG_SKIPCHUNK_pHYg
{MNG_UINT_pHYg, mng_init_general, mng_free_general, mng_read_general, mng_write_phyg, mng_assign_general, 0, 0, sizeof(mng_phyg), &mng_chunk_descr_phyg},
#endif
#ifndef MNG_SKIPCHUNK_pHYs
{MNG_UINT_pHYs, mng_init_general, mng_free_general, mng_read_general, mng_write_phys, mng_assign_general, 0, 0, sizeof(mng_phys), &mng_chunk_descr_phys},
#endif
#ifndef MNG_SKIPCHUNK_sBIT
{MNG_UINT_sBIT, mng_init_general, mng_free_general, mng_read_general, mng_write_sbit, mng_assign_general, 0, 0, sizeof(mng_sbit), &mng_chunk_descr_sbit},
#endif
/* TODO: {MNG_UINT_sCAL, 0, 0, 0, 0, 0, 0}, */
#ifndef MNG_SKIPCHUNK_sPLT
{MNG_UINT_sPLT, mng_init_general, mng_free_splt, mng_read_general, mng_write_splt, mng_assign_splt, 0, 0, sizeof(mng_splt), &mng_chunk_descr_splt},
#endif
{MNG_UINT_sRGB, mng_init_general, mng_free_general, mng_read_general, mng_write_srgb, mng_assign_general, 0, 0, sizeof(mng_srgb), &mng_chunk_descr_srgb},
#ifndef MNG_SKIPCHUNK_tEXt
{MNG_UINT_tEXt, mng_init_general, mng_free_text, mng_read_general, mng_write_text, mng_assign_text, 0, 0, sizeof(mng_text), &mng_chunk_descr_text},
#endif
#ifndef MNG_SKIPCHUNK_tIME
{MNG_UINT_tIME, mng_init_general, mng_free_general, mng_read_general, mng_write_time, mng_assign_general, 0, 0, sizeof(mng_time), &mng_chunk_descr_time},
#endif
{MNG_UINT_tRNS, mng_init_general, mng_free_general, mng_read_general, mng_write_trns, mng_assign_general, 0, 0, sizeof(mng_trns), &mng_chunk_descr_trns},
#ifndef MNG_SKIPCHUNK_zTXt
{MNG_UINT_zTXt, mng_init_general, mng_free_ztxt, mng_read_general, mng_write_ztxt, mng_assign_ztxt, 0, 0, sizeof(mng_ztxt), &mng_chunk_descr_ztxt},
#endif
};
/* ************************************************************************** */
/* ************************************************************************** */
void mng_get_chunkheader (mng_chunkid iChunkname,
mng_chunk_headerp pResult)
{
/* binary search variables */
mng_int32 iTop, iLower, iUpper, iMiddle;
mng_chunk_headerp pEntry; /* pointer to found entry */
/* determine max index of table */
iTop = (sizeof (mng_chunk_table) / sizeof (mng_chunk_table [0])) - 1;
/* binary search; with 54 chunks, worst-case is 7 comparisons */
iLower = 0;
#ifndef MNG_NO_DELTA_PNG
iMiddle = 11; /* start with the IDAT entry */
#else
iMiddle = 8;
#endif
iUpper = iTop;
pEntry = 0; /* no goods yet! */
do /* the binary search itself */
{
if (mng_chunk_table [iMiddle].iChunkname < iChunkname)
iLower = iMiddle + 1;
else if (mng_chunk_table [iMiddle].iChunkname > iChunkname)
iUpper = iMiddle - 1;
else
{
pEntry = &mng_chunk_table [iMiddle];
break;
}
iMiddle = (iLower + iUpper) >> 1;
}
while (iLower <= iUpper);
if (!pEntry) /* unknown chunk ? */
pEntry = &mng_chunk_unknown; /* make it so! */
MNG_COPY (pResult, pEntry, sizeof(mng_chunk_header));
return;
}
/* ************************************************************************** */
/* ************************************************************************** */
/* PNG chunks */
MNG_C_SPECIALFUNC (mng_special_ihdr)
{
pData->bHasIHDR = MNG_TRUE; /* indicate IHDR is present */
/* and store interesting fields */
if ((!pData->bHasDHDR) || (pData->iDeltatype == MNG_DELTATYPE_NOCHANGE))
{
pData->iDatawidth = ((mng_ihdrp)pChunk)->iWidth;
pData->iDataheight = ((mng_ihdrp)pChunk)->iHeight;
}
pData->iBitdepth = ((mng_ihdrp)pChunk)->iBitdepth;
pData->iColortype = ((mng_ihdrp)pChunk)->iColortype;
pData->iCompression = ((mng_ihdrp)pChunk)->iCompression;
pData->iFilter = ((mng_ihdrp)pChunk)->iFilter;
pData->iInterlace = ((mng_ihdrp)pChunk)->iInterlace;
#if defined(MNG_NO_1_2_4BIT_SUPPORT) || defined(MNG_NO_16BIT_SUPPORT)
pData->iPNGmult = 1;
pData->iPNGdepth = pData->iBitdepth;
#endif
#ifdef MNG_NO_1_2_4BIT_SUPPORT
if (pData->iBitdepth < 8)
pData->iBitdepth = 8;
#endif
#ifdef MNG_NO_16BIT_SUPPORT
if (pData->iBitdepth > 8)
{
pData->iBitdepth = 8;
pData->iPNGmult = 2;
}
#endif
if ((pData->iBitdepth != 8) /* parameter validity checks */
#ifndef MNG_NO_1_2_4BIT_SUPPORT
&& (pData->iBitdepth != 1) &&
(pData->iBitdepth != 2) &&
(pData->iBitdepth != 4)
#endif
#ifndef MNG_NO_16BIT_SUPPORT
&& (pData->iBitdepth != 16)
#endif
)
MNG_ERROR (pData, MNG_INVALIDBITDEPTH);
if ((pData->iColortype != MNG_COLORTYPE_GRAY ) &&
(pData->iColortype != MNG_COLORTYPE_RGB ) &&
(pData->iColortype != MNG_COLORTYPE_INDEXED) &&
(pData->iColortype != MNG_COLORTYPE_GRAYA ) &&
(pData->iColortype != MNG_COLORTYPE_RGBA ) )
MNG_ERROR (pData, MNG_INVALIDCOLORTYPE);
if ((pData->iColortype == MNG_COLORTYPE_INDEXED) && (pData->iBitdepth > 8))
MNG_ERROR (pData, MNG_INVALIDBITDEPTH);
if (((pData->iColortype == MNG_COLORTYPE_RGB ) ||
(pData->iColortype == MNG_COLORTYPE_GRAYA ) ||
(pData->iColortype == MNG_COLORTYPE_RGBA ) ) &&
(pData->iBitdepth < 8 ) )
MNG_ERROR (pData, MNG_INVALIDBITDEPTH);
if (pData->iCompression != MNG_COMPRESSION_DEFLATE)
MNG_ERROR (pData, MNG_INVALIDCOMPRESS);
#if defined(FILTER192) || defined(FILTER193)
if ((pData->iFilter != MNG_FILTER_ADAPTIVE ) &&
#if defined(FILTER192) && defined(FILTER193)
(pData->iFilter != MNG_FILTER_DIFFERING) &&
(pData->iFilter != MNG_FILTER_NOFILTER ) )
#else
#ifdef FILTER192
(pData->iFilter != MNG_FILTER_DIFFERING) )
#else
(pData->iFilter != MNG_FILTER_NOFILTER ) )
#endif
#endif
MNG_ERROR (pData, MNG_INVALIDFILTER);
#else
if (pData->iFilter)
MNG_ERROR (pData, MNG_INVALIDFILTER);
#endif
if ((pData->iInterlace != MNG_INTERLACE_NONE ) &&
(pData->iInterlace != MNG_INTERLACE_ADAM7) )
MNG_ERROR (pData, MNG_INVALIDINTERLACE);
#ifdef MNG_SUPPORT_DISPLAY
#ifndef MNG_NO_DELTA_PNG
if (pData->bHasDHDR) /* check the colortype for delta-images ! */
{
mng_imagedatap pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf;
if (pData->iColortype != pBuf->iColortype)
{
if ( ( (pData->iColortype != MNG_COLORTYPE_INDEXED) ||
(pBuf->iColortype == MNG_COLORTYPE_GRAY ) ) &&
( (pData->iColortype != MNG_COLORTYPE_GRAY ) ||
(pBuf->iColortype == MNG_COLORTYPE_INDEXED) ) )
MNG_ERROR (pData, MNG_INVALIDCOLORTYPE);
}
}
#endif
#endif
if (!pData->bHasheader) /* first chunk ? */
{
pData->bHasheader = MNG_TRUE; /* we've got a header */
pData->eImagetype = mng_it_png; /* then this must be a PNG */
pData->iWidth = pData->iDatawidth;
pData->iHeight = pData->iDataheight;
/* predict alpha-depth ! */
if ((pData->iColortype == MNG_COLORTYPE_GRAYA ) ||
(pData->iColortype == MNG_COLORTYPE_RGBA ) )
pData->iAlphadepth = pData->iBitdepth;
else
if (pData->iColortype == MNG_COLORTYPE_INDEXED)
pData->iAlphadepth = 8; /* worst case scenario */
else
pData->iAlphadepth = 1; /* Possible tRNS cheap binary transparency */
/* fits on maximum canvas ? */
if ((pData->iWidth > pData->iMaxwidth) || (pData->iHeight > pData->iMaxheight))
MNG_WARNING (pData, MNG_IMAGETOOLARGE);
#if !defined(MNG_INCLUDE_MPNG_PROPOSAL) || !defined(MNG_SUPPORT_DISPLAY)
if (pData->fProcessheader) /* inform the app ? */
if (!pData->fProcessheader (((mng_handle)pData), pData->iWidth, pData->iHeight))
MNG_ERROR (pData, MNG_APPMISCERROR);
#endif
}
if (!pData->bHasDHDR)
pData->iImagelevel++; /* one level deeper */
#ifdef MNG_SUPPORT_DISPLAY
return mng_process_display_ihdr (pData);
#else
return MNG_NOERROR;
#endif /* MNG_SUPPORT_DISPLAY */
}
/* ************************************************************************** */
MNG_F_SPECIALFUNC (mng_debunk_plte)
{
mng_pltep pPLTE = (mng_pltep)pChunk;
mng_uint32 iRawlen = *piRawlen;
mng_uint8p pRawdata = *ppRawdata;
/* length must be multiple of 3 */
if (((iRawlen % 3) != 0) || (iRawlen > 768))
MNG_ERROR (pData, MNG_INVALIDLENGTH);
/* this is the exact length */
pPLTE->iEntrycount = iRawlen / 3;
MNG_COPY (pPLTE->aEntries, pRawdata, iRawlen);
*piRawlen = 0;
return MNG_NOERROR;
}
/* ************************************************************************** */
MNG_C_SPECIALFUNC (mng_special_plte)
{ /* multiple PLTE only inside BASI */
if ((pData->bHasPLTE) && (!pData->bHasBASI))
MNG_ERROR (pData, MNG_MULTIPLEERROR);
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR))
{ /* only allowed for indexed-color or
rgb(a)-color! */
if ((pData->iColortype != MNG_COLORTYPE_RGB ) &&
(pData->iColortype != MNG_COLORTYPE_INDEXED) &&
(pData->iColortype != MNG_COLORTYPE_RGBA ) )
MNG_ERROR (pData, MNG_CHUNKNOTALLOWED);
/* empty only allowed if global present */
if ((((mng_pltep)pChunk)->bEmpty) && (!pData->bHasglobalPLTE))
MNG_ERROR (pData, MNG_CANNOTBEEMPTY);
}
else
{
if (((mng_pltep)pChunk)->bEmpty) /* cannot be empty as global! */
MNG_ERROR (pData, MNG_CANNOTBEEMPTY);
}
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR))
pData->bHasPLTE = MNG_TRUE; /* got it! */
else
pData->bHasglobalPLTE = MNG_TRUE;
pData->iPLTEcount = ((mng_pltep)pChunk)->iEntrycount;
#ifdef MNG_SUPPORT_DISPLAY
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR))
{
mng_imagep pImage;
mng_imagedatap pBuf;
#ifndef MNG_NO_DELTA_PNG
if (pData->bHasDHDR) /* processing delta-image ? */
{ /* store in object 0 !!! */
pImage = (mng_imagep)pData->pObjzero;
pBuf = pImage->pImgbuf;
pBuf->bHasPLTE = MNG_TRUE; /* it's definitely got a PLTE now */
pBuf->iPLTEcount = ((mng_pltep)pChunk)->iEntrycount;
MNG_COPY (pBuf->aPLTEentries, ((mng_pltep)pChunk)->aEntries,
sizeof (pBuf->aPLTEentries));
}
else
#endif
{ /* get the current object */
pImage = (mng_imagep)pData->pCurrentobj;
if (!pImage) /* no object then dump it in obj 0 */
pImage = (mng_imagep)pData->pObjzero;
pBuf = pImage->pImgbuf; /* address the object buffer */
pBuf->bHasPLTE = MNG_TRUE; /* and tell it it's got a PLTE now */
if (((mng_pltep)pChunk)->bEmpty) /* if empty, inherit from global */
{
pBuf->iPLTEcount = pData->iGlobalPLTEcount;
MNG_COPY (pBuf->aPLTEentries, pData->aGlobalPLTEentries,
sizeof (pBuf->aPLTEentries));
if (pData->bHasglobalTRNS) /* also copy global tRNS ? */
{
mng_uint32 iRawlen2 = pData->iGlobalTRNSrawlen;
mng_uint8p pRawdata2 = (mng_uint8p)(pData->aGlobalTRNSrawdata);
/* indicate tRNS available */
pBuf->bHasTRNS = MNG_TRUE;
/* global length oke ? */
if ((iRawlen2 == 0) || (iRawlen2 > pBuf->iPLTEcount))
MNG_ERROR (pData, MNG_GLOBALLENGTHERR);
/* copy it */
pBuf->iTRNScount = iRawlen2;
MNG_COPY (pBuf->aTRNSentries, pRawdata2, iRawlen2);
}
}
else
{ /* store fields for future reference */
pBuf->iPLTEcount = ((mng_pltep)pChunk)->iEntrycount;
MNG_COPY (pBuf->aPLTEentries, ((mng_pltep)pChunk)->aEntries,
sizeof (pBuf->aPLTEentries));
}
}
}
else /* store as global */
{
pData->iGlobalPLTEcount = ((mng_pltep)pChunk)->iEntrycount;
MNG_COPY (pData->aGlobalPLTEentries, ((mng_pltep)pChunk)->aEntries,
sizeof (pData->aGlobalPLTEentries));
/* create an animation object */
return mng_create_ani_plte (pData);
}
#endif /* MNG_SUPPORT_DISPLAY */
return MNG_NOERROR; /* done */
}
/* ************************************************************************** */
MNG_C_SPECIALFUNC (mng_special_idat)
{
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasJHDR) &&
(pData->iJHDRalphacompression != MNG_COMPRESSION_DEFLATE))
MNG_ERROR (pData, MNG_SEQUENCEERROR);
#endif
/* not allowed for deltatype NO_CHANGE */
#ifndef MNG_NO_DELTA_PNG
if ((pData->bHasDHDR) && ((pData->iDeltatype == MNG_DELTATYPE_NOCHANGE)))
MNG_ERROR (pData, MNG_CHUNKNOTALLOWED);
#endif
/* can only be empty in BASI-block! */
if ((((mng_idatp)pChunk)->bEmpty) && (!pData->bHasBASI))
MNG_ERROR (pData, MNG_INVALIDLENGTH);
/* indexed-color requires PLTE */
if ((pData->bHasIHDR) && (pData->iColortype == 3) && (!pData->bHasPLTE))
MNG_ERROR (pData, MNG_PLTEMISSING);
pData->bHasIDAT = MNG_TRUE; /* got some IDAT now, don't we */
return MNG_NOERROR; /* done */
}
/* ************************************************************************** */
MNG_C_SPECIALFUNC (mng_special_iend)
{ /* IHDR-block requires IDAT */
if ((pData->bHasIHDR) && (!pData->bHasIDAT))
MNG_ERROR (pData, MNG_IDATMISSING);
pData->iImagelevel--; /* one level up */
#ifdef MNG_SUPPORT_DISPLAY
{ /* create an animation object */
mng_retcode iRetcode = mng_create_ani_image (pData);
if (iRetcode) /* on error bail out */
return iRetcode;
/* display processing */
iRetcode = mng_process_display_iend (pData);
if (iRetcode) /* on error bail out */
return iRetcode;
}
#endif /* MNG_SUPPORT_DISPLAY */
#ifdef MNG_SUPPORT_DISPLAY
if (!pData->bTimerset) /* reset only if not broken !!! */
{
#endif
/* IEND signals the end for most ... */
pData->bHasIHDR = MNG_FALSE;
pData->bHasBASI = MNG_FALSE;
pData->bHasDHDR = MNG_FALSE;
#ifdef MNG_INCLUDE_JNG
pData->bHasJHDR = MNG_FALSE;
pData->bHasJSEP = MNG_FALSE;
pData->bHasJDAA = MNG_FALSE;
pData->bHasJDAT = MNG_FALSE;
#endif
pData->bHasPLTE = MNG_FALSE;
pData->bHasTRNS = MNG_FALSE;
pData->bHasGAMA = MNG_FALSE;
pData->bHasCHRM = MNG_FALSE;
pData->bHasSRGB = MNG_FALSE;
pData->bHasICCP = MNG_FALSE;
pData->bHasBKGD = MNG_FALSE;
pData->bHasIDAT = MNG_FALSE;
#ifdef MNG_SUPPORT_DISPLAY
}
#endif
return MNG_NOERROR; /* done */
}
/* ************************************************************************** */
MNG_F_SPECIALFUNC (mng_debunk_trns)
{
mng_trnsp pTRNS = (mng_trnsp)pChunk;
mng_uint32 iRawlen = *piRawlen;
mng_uint8p pRawdata = *ppRawdata;
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR))
{ /* not global! */
pTRNS->bGlobal = MNG_FALSE;
pTRNS->iType = pData->iColortype;
if (iRawlen != 0)
{
switch (pData->iColortype) /* store fields */
{
case 0: { /* gray */
if (iRawlen != 2)
MNG_ERROR (pData, MNG_INVALIDLENGTH);
pTRNS->iGray = mng_get_uint16 (pRawdata);
break;
}
case 2: { /* rgb */
if (iRawlen != 6)
MNG_ERROR (pData, MNG_INVALIDLENGTH);
pTRNS->iRed = mng_get_uint16 (pRawdata);
pTRNS->iGreen = mng_get_uint16 (pRawdata+2);
pTRNS->iBlue = mng_get_uint16 (pRawdata+4);
break;
}
case 3: { /* indexed */
if (iRawlen > 256)
MNG_ERROR (pData, MNG_INVALIDLENGTH);
pTRNS->iCount = iRawlen;
MNG_COPY (pTRNS->aEntries, pRawdata, iRawlen);
break;
}
}
}
}
else /* it's global! */
{
if (iRawlen == 0)
MNG_ERROR (pData, MNG_INVALIDLENGTH);
pTRNS->bGlobal = MNG_TRUE;
pTRNS->iType = 0;
pTRNS->iRawlen = iRawlen;
MNG_COPY (pTRNS->aRawdata, pRawdata, iRawlen);
pData->iGlobalTRNSrawlen = iRawlen;
MNG_COPY (pData->aGlobalTRNSrawdata, pRawdata, iRawlen);
}
*piRawlen = 0;
return MNG_NOERROR;
}
/* ************************************************************************** */
MNG_C_SPECIALFUNC (mng_special_trns)
{ /* multiple tRNS only inside BASI */
if ((pData->bHasTRNS) && (!pData->bHasBASI))
MNG_ERROR (pData, MNG_MULTIPLEERROR);
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR))
{ /* not allowed with full alpha-channel */
if ((pData->iColortype == 4) || (pData->iColortype == 6))
MNG_ERROR (pData, MNG_CHUNKNOTALLOWED);
if (!((mng_trnsp)pChunk)->bEmpty) /* filled ? */
{
#ifdef MNG_SUPPORT_DISPLAY
if (pData->iColortype == 3)
{
mng_imagep pImage = (mng_imagep)pData->pCurrentobj;
mng_imagedatap pBuf;
if (!pImage) /* no object then check obj 0 */
pImage = (mng_imagep)pData->pObjzero;
pBuf = pImage->pImgbuf; /* address object buffer */
if (((mng_trnsp)pChunk)->iCount > pBuf->iPLTEcount)
MNG_ERROR (pData, MNG_INVALIDLENGTH);
}
#endif
}
else /* if empty there must be global stuff! */
{
if (!pData->bHasglobalTRNS)
MNG_ERROR (pData, MNG_CANNOTBEEMPTY);
}
}
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR))
pData->bHasTRNS = MNG_TRUE; /* indicate tRNS available */
else
pData->bHasglobalTRNS = MNG_TRUE;
#ifdef MNG_SUPPORT_DISPLAY
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR))
{
mng_imagep pImage;
mng_imagedatap pBuf;
mng_uint8p pRawdata2;
mng_uint32 iRawlen2;
#ifndef MNG_NO_DELTA_PNG
if (pData->bHasDHDR) /* processing delta-image ? */
{ /* store in object 0 !!! */
#if defined(MNG_NO_1_2_4BIT_SUPPORT)
mng_uint8 multiplier[]={0,255,85,0,17,0,0,0,1,0,0,0,0,0,0,0,1};
#endif
pImage = (mng_imagep)pData->pObjzero;
pBuf = pImage->pImgbuf; /* address object buffer */
pBuf->bHasTRNS = MNG_TRUE; /* tell it it's got a tRNS now */
pBuf->iTRNSgray = 0;
pBuf->iTRNSred = 0;
pBuf->iTRNSgreen = 0;
pBuf->iTRNSblue = 0;
pBuf->iTRNScount = 0;
switch (pData->iColortype) /* store fields for future reference */
{
case 0: { /* gray */
pBuf->iTRNSgray = ((mng_trnsp)pChunk)->iGray;
#if defined(MNG_NO_1_2_4BIT_SUPPORT)
pBuf->iTRNSgray *= multiplier[pData->iPNGdepth];
#endif
#if defined(MNG_NO_16BIT_SUPPORT)
if (pData->iPNGmult == 2)
pBuf->iTRNSgray >>= 8;
#endif
break;
}
case 2: { /* rgb */
pBuf->iTRNSred = ((mng_trnsp)pChunk)->iRed;
pBuf->iTRNSgreen = ((mng_trnsp)pChunk)->iGreen;
pBuf->iTRNSblue = ((mng_trnsp)pChunk)->iBlue;
#if defined(MNG_NO_16BIT_SUPPORT)
if (pData->iPNGmult == 2)
{
pBuf->iTRNSred >>= 8;
pBuf->iTRNSgreen >>= 8;
pBuf->iTRNSblue >>= 8;
}
#endif
break;
}
case 3: { /* indexed */
pBuf->iTRNScount = ((mng_trnsp)pChunk)->iCount;
MNG_COPY (pBuf->aTRNSentries,
((mng_trnsp)pChunk)->aEntries,
((mng_trnsp)pChunk)->iCount);
break;
}
}
}
else
#endif
{ /* address current object */
pImage = (mng_imagep)pData->pCurrentobj;
if (!pImage) /* no object then dump it in obj 0 */
pImage = (mng_imagep)pData->pObjzero;
pBuf = pImage->pImgbuf; /* address object buffer */
pBuf->bHasTRNS = MNG_TRUE; /* and tell it it's got a tRNS now */
pBuf->iTRNSgray = 0;
pBuf->iTRNSred = 0;
pBuf->iTRNSgreen = 0;
pBuf->iTRNSblue = 0;
pBuf->iTRNScount = 0;
if (((mng_trnsp)pChunk)->bEmpty) /* if empty, inherit from global */
{
iRawlen2 = pData->iGlobalTRNSrawlen;
pRawdata2 = (mng_ptr)(pData->aGlobalTRNSrawdata);
/* global length oke ? */
if ((pData->iColortype == 0) && (iRawlen2 != 2))
MNG_ERROR (pData, MNG_GLOBALLENGTHERR);
if ((pData->iColortype == 2) && (iRawlen2 != 6))
MNG_ERROR (pData, MNG_GLOBALLENGTHERR);
if ((pData->iColortype == 3) && ((iRawlen2 == 0) || (iRawlen2 > pBuf->iPLTEcount)))
MNG_ERROR (pData, MNG_GLOBALLENGTHERR);
switch (pData->iColortype) /* store fields for future reference */
{
case 0: { /* gray */
pBuf->iTRNSgray = mng_get_uint16 (pRawdata2);
#if defined(MNG_NO_16BIT_SUPPORT)
if (pData->iPNGmult == 2)
pBuf->iTRNSgray >>= 8;
#endif
break;
}
case 2: { /* rgb */
pBuf->iTRNSred = mng_get_uint16 (pRawdata2);
pBuf->iTRNSgreen = mng_get_uint16 (pRawdata2+2);
pBuf->iTRNSblue = mng_get_uint16 (pRawdata2+4);
#if defined(MNG_NO_16BIT_SUPPORT)
if (pData->iPNGmult == 2)
{
pBuf->iTRNSred >>= 8;
pBuf->iTRNSgreen >>= 8;
pBuf->iTRNSblue >>= 8;
}
#endif
break;
}
case 3: { /* indexed */
pBuf->iTRNScount = iRawlen2;
MNG_COPY (pBuf->aTRNSentries, pRawdata2, iRawlen2);
break;
}
}
}
else
{
switch (pData->iColortype) /* store fields for future reference */
{
case 0: { /* gray */
pBuf->iTRNSgray = ((mng_trnsp)pChunk)->iGray;
#if defined(MNG_NO_16BIT_SUPPORT)
if (pData->iPNGmult == 2)
pBuf->iTRNSgray >>= 8;
#endif
break;
}
case 2: { /* rgb */
pBuf->iTRNSred = ((mng_trnsp)pChunk)->iRed;
pBuf->iTRNSgreen = ((mng_trnsp)pChunk)->iGreen;
pBuf->iTRNSblue = ((mng_trnsp)pChunk)->iBlue;
#if defined(MNG_NO_16BIT_SUPPORT)
if (pData->iPNGmult == 2)
{
pBuf->iTRNSred >>= 8;
pBuf->iTRNSgreen >>= 8;
pBuf->iTRNSblue >>= 8;
}
#endif
break;
}
case 3: { /* indexed */
pBuf->iTRNScount = ((mng_trnsp)pChunk)->iCount;
MNG_COPY (pBuf->aTRNSentries,
((mng_trnsp)pChunk)->aEntries,
((mng_trnsp)pChunk)->iCount);
break;
}
}
}
}
}
else
{ /* create an animation object */
return mng_create_ani_trns (pData);
}
#endif /* MNG_SUPPORT_DISPLAY */
return MNG_NOERROR; /* done */
}
/* ************************************************************************** */
MNG_C_SPECIALFUNC (mng_special_gama)
{
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR))
#else
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR))
#endif
pData->bHasGAMA = MNG_TRUE; /* indicate we've got it */
else
pData->bHasglobalGAMA = (mng_bool)!((mng_gamap)pChunk)->bEmpty;
#ifdef MNG_SUPPORT_DISPLAY
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR))
#else
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR))
#endif
{
mng_imagep pImage;
#ifndef MNG_NO_DELTA_PNG
if (pData->bHasDHDR) /* update delta image ? */
pImage = (mng_imagep)pData->pObjzero;
else
#endif
{
pImage = (mng_imagep)pData->pCurrentobj;
if (!pImage) /* no object then dump it in obj 0 */
pImage = (mng_imagep)pData->pObjzero;
}
/* store for color-processing routines */
pImage->pImgbuf->iGamma = ((mng_gamap)pChunk)->iGamma;
pImage->pImgbuf->bHasGAMA = MNG_TRUE;
}
else
{ /* store as global */
if (!((mng_gamap)pChunk)->bEmpty)
pData->iGlobalGamma = ((mng_gamap)pChunk)->iGamma;
/* create an animation object */
return mng_create_ani_gama (pData, pChunk);
}
#endif /* MNG_SUPPORT_DISPLAY */
return MNG_NOERROR; /* done */
}
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_cHRM
MNG_C_SPECIALFUNC (mng_special_chrm)
{
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR))
#else
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR))
#endif
pData->bHasCHRM = MNG_TRUE; /* indicate we've got it */
else
pData->bHasglobalCHRM = (mng_bool)!((mng_chrmp)pChunk)->bEmpty;
#ifdef MNG_SUPPORT_DISPLAY
{
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR))
#else
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR))
#endif
{
mng_imagep pImage;
mng_imagedatap pBuf;
#ifndef MNG_NO_DELTA_PNG
if (pData->bHasDHDR) /* update delta image ? */
pImage = (mng_imagep)pData->pObjzero;
else
#endif
{
pImage = (mng_imagep)pData->pCurrentobj;
if (!pImage) /* no object then dump it in obj 0 */
pImage = (mng_imagep)pData->pObjzero;
}
pBuf = pImage->pImgbuf; /* address object buffer */
pBuf->bHasCHRM = MNG_TRUE; /* and tell it it's got a CHRM now */
/* store for color-processing routines */
pBuf->iWhitepointx = ((mng_chrmp)pChunk)->iWhitepointx;
pBuf->iWhitepointy = ((mng_chrmp)pChunk)->iWhitepointy;
pBuf->iPrimaryredx = ((mng_chrmp)pChunk)->iRedx;
pBuf->iPrimaryredy = ((mng_chrmp)pChunk)->iRedy;
pBuf->iPrimarygreenx = ((mng_chrmp)pChunk)->iGreenx;
pBuf->iPrimarygreeny = ((mng_chrmp)pChunk)->iGreeny;
pBuf->iPrimarybluex = ((mng_chrmp)pChunk)->iBluex;
pBuf->iPrimarybluey = ((mng_chrmp)pChunk)->iBluey;
}
else
{ /* store as global */
if (!((mng_chrmp)pChunk)->bEmpty)
{
pData->iGlobalWhitepointx = ((mng_chrmp)pChunk)->iWhitepointx;
pData->iGlobalWhitepointy = ((mng_chrmp)pChunk)->iWhitepointy;
pData->iGlobalPrimaryredx = ((mng_chrmp)pChunk)->iRedx;
pData->iGlobalPrimaryredy = ((mng_chrmp)pChunk)->iRedy;
pData->iGlobalPrimarygreenx = ((mng_chrmp)pChunk)->iGreenx;
pData->iGlobalPrimarygreeny = ((mng_chrmp)pChunk)->iGreeny;
pData->iGlobalPrimarybluex = ((mng_chrmp)pChunk)->iBluex;
pData->iGlobalPrimarybluey = ((mng_chrmp)pChunk)->iBluey;
}
/* create an animation object */
return mng_create_ani_chrm (pData, pChunk);
}
}
#endif /* MNG_SUPPORT_DISPLAY */
return MNG_NOERROR; /* done */
}
#endif
/* ************************************************************************** */
MNG_C_SPECIALFUNC (mng_special_srgb)
{
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR))
#else
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR))
#endif
pData->bHasSRGB = MNG_TRUE; /* indicate we've got it */
else
pData->bHasglobalSRGB = (mng_bool)!((mng_srgbp)pChunk)->bEmpty;
#ifdef MNG_SUPPORT_DISPLAY
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR))
#else
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR))
#endif
{
mng_imagep pImage;
#ifndef MNG_NO_DELTA_PNG
if (pData->bHasDHDR) /* update delta image ? */
pImage = (mng_imagep)pData->pObjzero;
else
#endif
{
pImage = (mng_imagep)pData->pCurrentobj;
if (!pImage) /* no object then dump it in obj 0 */
pImage = (mng_imagep)pData->pObjzero;
}
/* store for color-processing routines */
pImage->pImgbuf->iRenderingintent = ((mng_srgbp)pChunk)->iRenderingintent;
pImage->pImgbuf->bHasSRGB = MNG_TRUE;
}
else
{ /* store as global */
if (!((mng_srgbp)pChunk)->bEmpty)
pData->iGlobalRendintent = ((mng_srgbp)pChunk)->iRenderingintent;
/* create an animation object */
return mng_create_ani_srgb (pData, pChunk);
}
#endif /* MNG_SUPPORT_DISPLAY */
return MNG_NOERROR; /* done */
}
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_iCCP
MNG_C_SPECIALFUNC (mng_special_iccp)
{
mng_retcode iRetcode;
mng_chunk_headerp pDummy;
#ifdef MNG_CHECK_BAD_ICCP /* Check for bad iCCP chunk */
if (!strncmp (((mng_iccpp)pChunk)->zName, "Photoshop ICC profile", 21))
{
if (((mng_iccpp)pChunk)->iProfilesize == 2615) /* is it the sRGB profile ? */
{
mng_chunk_header chunk_srgb;
mng_get_chunkheader (MNG_UINT_sRGB, &chunk_srgb);
/* pretend it's an sRGB chunk then ! */
iRetcode = mng_read_general (pData, &chunk_srgb, 1, (mng_ptr)"0", &pDummy);
if (iRetcode) /* on error bail out */
return iRetcode;
pDummy->fCleanup (pData, pDummy);
}
}
else
{
#endif /* MNG_CHECK_BAD_ICCP */
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR))
#else
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR))
#endif
pData->bHasICCP = MNG_TRUE; /* indicate we've got it */
else
pData->bHasglobalICCP = (mng_bool)!((mng_iccpp)pChunk)->bEmpty;
#ifdef MNG_SUPPORT_DISPLAY
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR))
#else
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR))
#endif
{
mng_imagep pImage;
#ifndef MNG_NO_DELTA_PNG
if (pData->bHasDHDR) /* update delta image ? */
{ /* store in object 0 ! */
pImage = (mng_imagep)pData->pObjzero;
if (pImage->pImgbuf->pProfile) /* profile existed ? */
MNG_FREEX (pData, pImage->pImgbuf->pProfile, pImage->pImgbuf->iProfilesize);
/* allocate a buffer & copy it */
MNG_ALLOC (pData, pImage->pImgbuf->pProfile, ((mng_iccpp)pChunk)->iProfilesize);
MNG_COPY (pImage->pImgbuf->pProfile, ((mng_iccpp)pChunk)->pProfile, ((mng_iccpp)pChunk)->iProfilesize);
/* store its length as well */
pImage->pImgbuf->iProfilesize = ((mng_iccpp)pChunk)->iProfilesize;
pImage->pImgbuf->bHasICCP = MNG_TRUE;
}
else
#endif
{
pImage = (mng_imagep)pData->pCurrentobj;
if (!pImage) /* no object then dump it in obj 0 */
pImage = (mng_imagep)pData->pObjzero;
if (pImage->pImgbuf->pProfile) /* profile existed ? */
MNG_FREEX (pData, pImage->pImgbuf->pProfile, pImage->pImgbuf->iProfilesize);
/* allocate a buffer & copy it */
MNG_ALLOC (pData, pImage->pImgbuf->pProfile, ((mng_iccpp)pChunk)->iProfilesize);
MNG_COPY (pImage->pImgbuf->pProfile, ((mng_iccpp)pChunk)->pProfile, ((mng_iccpp)pChunk)->iProfilesize);
/* store its length as well */
pImage->pImgbuf->iProfilesize = ((mng_iccpp)pChunk)->iProfilesize;
pImage->pImgbuf->bHasICCP = MNG_TRUE;
}
}
else
{ /* store as global */
if (pData->pGlobalProfile) /* did we have a global profile ? */
MNG_FREEX (pData, pData->pGlobalProfile, pData->iGlobalProfilesize);
if (((mng_iccpp)pChunk)->bEmpty) /* empty chunk ? */
{
pData->iGlobalProfilesize = 0; /* reset to null */
pData->pGlobalProfile = MNG_NULL;
}
else
{ /* allocate a global buffer & copy it */
MNG_ALLOC (pData, pData->pGlobalProfile, ((mng_iccpp)pChunk)->iProfilesize);
MNG_COPY (pData->pGlobalProfile, ((mng_iccpp)pChunk)->pProfile, ((mng_iccpp)pChunk)->iProfilesize);
/* store its length as well */
pData->iGlobalProfilesize = ((mng_iccpp)pChunk)->iProfilesize;
}
/* create an animation object */
return mng_create_ani_iccp (pData, pChunk);
}
#endif /* MNG_SUPPORT_DISPLAY */
#ifdef MNG_CHECK_BAD_ICCP
}
#endif
return MNG_NOERROR; /* done */
}
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_tEXt
MNG_C_SPECIALFUNC (mng_special_text)
{
if (pData->fProcesstext) /* inform the application ? */
{
mng_bool bOke = pData->fProcesstext ((mng_handle)pData, MNG_TYPE_TEXT,
((mng_textp)pChunk)->zKeyword,
((mng_textp)pChunk)->zText, 0, 0);
if (!bOke)
MNG_ERROR (pData, MNG_APPMISCERROR);
}
return MNG_NOERROR; /* done */
}
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_zTXt
MNG_C_SPECIALFUNC (mng_special_ztxt)
{
if (pData->fProcesstext) /* inform the application ? */
{
mng_bool bOke = pData->fProcesstext ((mng_handle)pData, MNG_TYPE_ZTXT,
((mng_ztxtp)pChunk)->zKeyword,
((mng_ztxtp)pChunk)->zText, 0, 0);
if (!bOke)
MNG_ERROR (pData, MNG_APPMISCERROR);
}
return MNG_NOERROR; /* done */
}
#endif
/* ************************************************************************** */
#ifndef MNG_SKIPCHUNK_iTXt
MNG_F_SPECIALFUNC (mng_deflate_itxt)
{
mng_itxtp pITXT = (mng_itxtp)pChunk;
mng_uint32 iBufsize = 0;
mng_uint8p pBuf = 0;
mng_uint32 iTextlen = 0;
if (pITXT->iCompressionflag) /* decompress the text ? */
{
mng_retcode iRetcode = mng_inflate_buffer (pData, *ppRawdata, *piRawlen,
&pBuf, &iBufsize, &iTextlen);