diff options
Diffstat (limited to 'tqtinterface/qt4/src/3rdparty/libmng/libmng_chunk_io.c')
| -rw-r--r-- | tqtinterface/qt4/src/3rdparty/libmng/libmng_chunk_io.c | 8817 |
1 files changed, 0 insertions, 8817 deletions
diff --git a/tqtinterface/qt4/src/3rdparty/libmng/libmng_chunk_io.c b/tqtinterface/qt4/src/3rdparty/libmng/libmng_chunk_io.c deleted file mode 100644 index 1a9606a..0000000 --- a/tqtinterface/qt4/src/3rdparty/libmng/libmng_chunk_io.c +++ /dev/null @@ -1,8817 +0,0 @@ -/* ************************************************************************** */ -/* * For conditions of distribution and use, * */ -/* * see copyright notice in libmng.h * */ -/* ************************************************************************** */ -/* * * */ -/* * project : libmng * */ -/* * file : libmng_chunk_io.c copyright (c) 2000 G.Juyn * */ -/* * version : 1.0.2 * */ -/* * * */ -/* * purpose : Chunk I/O routines (implementation) * */ -/* * * */ -/* * author : G.Juyn * */ -/* * web : http://www.3-t.com * */ -/* * email : mailto:info@3-t.com * */ -/* * * */ -/* * comment : implementation of chunk input/output routines * */ -/* * * */ -/* * changes : 0.5.1 - 05/01/2000 - G.Juyn * */ -/* * - cleaned up left-over teststuff in the BACK chunk routine * */ -/* * 0.5.1 - 05/04/2000 - G.Juyn * */ -/* * - changed CRC initialization to use dynamic structure * */ -/* * (wasn't thread-safe the old way !) * */ -/* * 0.5.1 - 05/06/2000 - G.Juyn * */ -/* * - filled in many missing sequence&length checks * */ -/* * - filled in many missing chunk-store snippets * */ -/* * 0.5.1 - 05/08/2000 - G.Juyn * */ -/* * - added checks for running animations * */ -/* * - filled some write routines * */ -/* * - changed strict-ANSI stuff * */ -/* * 0.5.1 - 05/10/2000 - G.Juyn * */ -/* * - filled some more write routines * */ -/* * 0.5.1 - 05/11/2000 - G.Juyn * */ -/* * - filled remaining write routines * */ -/* * - fixed read_pplt with regard to deltatype * */ -/* * - added callback error-reporting support * */ -/* * - added pre-draft48 support (short MHDR, frame_mode, LOOP) * */ -/* * 0.5.1 - 05/12/2000 - G.Juyn * */ -/* * - changed trace to macro for callback error-reporting * */ -/* * - fixed chunk-storage bit in several routines * */ -/* * 0.5.1 - 05/13/2000 - G.Juyn * */ -/* * - added eMNGma hack (will be removed in 1.0.0 !!!) * */ -/* * - added TERM animation object pointer (easier reference) * */ -/* * - supplemented the SAVE & SEEK display processing * */ -/* * * */ -/* * 0.5.2 - 05/18/2000 - G.Juyn * */ -/* * - B004 - fixed problem with MNG_SUPPORT_WRITE not defined * */ -/* * also for MNG_SUPPORT_WRITE without MNG_INCLUDE_JNG * */ -/* * 0.5.2 - 05/19/2000 - G.Juyn * */ -/* * - cleaned up some code regarding mixed support * */ -/* * 0.5.2 - 05/20/2000 - G.Juyn * */ -/* * - implemented JNG support * */ -/* * 0.5.2 - 05/24/2000 - G.Juyn * */ -/* * - added support for global color-chunks in animation * */ -/* * - added support for global PLTE,tRNS,bKGD in animation * */ -/* * - added support for SAVE & SEEK in animation * */ -/* * 0.5.2 - 05/29/2000 - G.Juyn * */ -/* * - changed ani_create calls not returning object pointer * */ -/* * - create ani objects always (not just inside TERM/LOOP) * */ -/* * 0.5.2 - 05/30/2000 - G.Juyn * */ -/* * - added support for delta-image processing * */ -/* * 0.5.2 - 05/31/2000 - G.Juyn * */ -/* * - fixed up punctuation (contributed by Tim Rowley) * */ -/* * 0.5.2 - 06/02/2000 - G.Juyn * */ -/* * - changed SWAP_ENDIAN to BIGENDIAN_SUPPORTED * */ -/* * 0.5.2 - 06/03/2000 - G.Juyn * */ -/* * - fixed makeup for Linux gcc compile * */ -/* * * */ -/* * 0.5.3 - 06/12/2000 - G.Juyn * */ -/* * - added processing of color-info on delta-image * */ -/* * 0.5.3 - 06/13/2000 - G.Juyn * */ -/* * - fixed handling of empty SAVE chunk * */ -/* * 0.5.3 - 06/17/2000 - G.Juyn * */ -/* * - changed to support delta-images * */ -/* * - added extra checks for delta-images * */ -/* * 0.5.3 - 06/20/2000 - G.Juyn * */ -/* * - fixed possible trouble if IEND display-process got * */ -/* * broken up * */ -/* * 0.5.3 - 06/21/2000 - G.Juyn * */ -/* * - added processing of PLTE & tRNS for delta-images * */ -/* * - added administration of imagelevel parameter * */ -/* * 0.5.3 - 06/22/2000 - G.Juyn * */ -/* * - implemented support for PPLT chunk * */ -/* * 0.5.3 - 06/26/2000 - G.Juyn * */ -/* * - added precaution against faulty iCCP chunks from PS * */ -/* * 0.5.3 - 06/29/2000 - G.Juyn * */ -/* * - fixed some 64-bit warnings * */ -/* * * */ -/* * 0.9.1 - 07/14/2000 - G.Juyn * */ -/* * - changed pre-draft48 frame_mode=3 to frame_mode=1 * */ -/* * 0.9.1 - 07/16/2000 - G.Juyn * */ -/* * - fixed storage of images during mng_read() * */ -/* * - fixed support for mng_display() after mng_read() * */ -/* * 0.9.1 - 07/19/2000 - G.Juyn * */ -/* * - fixed several chunk-writing routines * */ -/* * 0.9.1 - 07/24/2000 - G.Juyn * */ -/* * - fixed reading of still-images * */ -/* * * */ -/* * 0.9.2 - 08/05/2000 - G.Juyn * */ -/* * - changed file-prefixes * */ -/* * * */ -/* * 0.9.3 - 08/07/2000 - G.Juyn * */ -/* * - B111300 - fixup for improved portability * */ -/* * 0.9.3 - 08/08/2000 - G.Juyn * */ -/* * - fixed compiler-warnings from Mozilla * */ -/* * 0.9.3 - 08/09/2000 - G.Juyn * */ -/* * - added check for simplicity-bits in MHDR * */ -/* * 0.9.3 - 08/12/2000 - G.Juyn * */ -/* * - fixed check for simplicity-bits in MHDR (JNG) * */ -/* * 0.9.3 - 08/12/2000 - G.Juyn * */ -/* * - added workaround for faulty PhotoShop iCCP chunk * */ -/* * 0.9.3 - 08/22/2000 - G.Juyn * */ -/* * - fixed write-code for zTXt & iTXt * */ -/* * - fixed read-code for iTXt * */ -/* * 0.9.3 - 08/26/2000 - G.Juyn * */ -/* * - added MAGN chunk * */ -/* * 0.9.3 - 09/07/2000 - G.Juyn * */ -/* * - added support for new filter_types * */ -/* * 0.9.3 - 09/10/2000 - G.Juyn * */ -/* * - fixed DEFI behavior * */ -/* * 0.9.3 - 10/02/2000 - G.Juyn * */ -/* * - fixed simplicity-check in compliance with draft 81/0.98a * */ -/* * 0.9.3 - 10/10/2000 - G.Juyn * */ -/* * - added support for alpha-depth prediction * */ -/* * 0.9.3 - 10/11/2000 - G.Juyn * */ -/* * - added support for nEED * */ -/* * 0.9.3 - 10/16/2000 - G.Juyn * */ -/* * - added support for JDAA * */ -/* * 0.9.3 - 10/17/2000 - G.Juyn * */ -/* * - fixed support for MAGN * */ -/* * - implemented nEED "xxxx" (where "xxxx" is a chunkid) * */ -/* * - added callback to process non-critical unknown chunks * */ -/* * - fixed support for bKGD * */ -/* * 0.9.3 - 10/23/2000 - G.Juyn * */ -/* * - fixed bug in empty PLTE handling * */ -/* * * */ -/* * 0.9.4 - 11/20/2000 - G.Juyn * */ -/* * - changed IHDR filter_method check for PNGs * */ -/* * 0.9.4 - 1/18/2001 - G.Juyn * */ -/* * - added errorchecking for MAGN methods * */ -/* * - removed test filter-methods 1 & 65 * */ -/* * * */ -/* * 0.9.5 - 1/25/2001 - G.Juyn * */ -/* * - fixed some small compiler warnings (thanks Nikki) * */ -/* * * */ -/* * 1.0.2 - 05/05/2000 - G.Juyn * */ -/* * - B421427 - writes wrong format in bKGD and tRNS * */ -/* * 1.0.2 - 06/20/2000 - G.Juyn * */ -/* * - B434583 - compiler-warning if MNG_STORE_CHUNKS undefined * */ -/* * * */ -/* ************************************************************************** */ - -#include "libmng.h" -#include "libmng_data.h" -#include "libmng_error.h" -#include "libmng_trace.h" -#ifdef __BORLANDC__ -#pragma hdrstop -#endif -#include "libmng_objects.h" -#include "libmng_object_prc.h" -#include "libmng_chunks.h" -#ifdef MNG_CHECK_BAD_ICCP -#include "libmng_chunk_prc.h" -#endif -#include "libmng_memory.h" -#include "libmng_display.h" -#include "libmng_zlib.h" -#include "libmng_pixels.h" -#include "libmng_chunk_io.h" - -#if defined(__BORLANDC__) && defined(MNG_STRICT_ANSI) -#pragma option -A /* force ANSI-C */ -#endif - -/* ************************************************************************** */ -/* * * */ -/* * CRC - Cyclic Redundancy Check * */ -/* * * */ -/* * The code below is taken directly from the sample provided with the * */ -/* * PNG specification. * */ -/* * (it is only adapted to the library's internal data-definitions) * */ -/* * * */ -/* ************************************************************************** */ - -/* Make the table for a fast CRC. */ -void make_crc_table (mng_datap pData) -{ - mng_uint32 iC; - mng_int32 iN, iK; - - for (iN = 0; iN < 256; iN++) - { - iC = (mng_uint32) iN; - - for (iK = 0; iK < 8; iK++) - { - if (iC & 1) - iC = 0xedb88320U ^ (iC >> 1); - else - iC = iC >> 1; - } - - pData->aCRCtable [iN] = iC; - } - - pData->bCRCcomputed = MNG_TRUE; -} - -/* Update a running CRC with the bytes buf[0..len-1]--the CRC - should be initialized to all 1's, and the transmitted value - is the 1's complement of the final running CRC (see the - crc() routine below). */ - -mng_uint32 update_crc (mng_datap pData, - mng_uint32 iCrc, - mng_uint8p pBuf, - mng_int32 iLen) -{ - mng_uint32 iC = iCrc; - mng_int32 iN; - - if (!pData->bCRCcomputed) - make_crc_table (pData); - - for (iN = 0; iN < iLen; iN++) - iC = pData->aCRCtable [(iC ^ pBuf [iN]) & 0xff] ^ (iC >> 8); - - return iC; -} - -/* Return the CRC of the bytes buf[0..len-1]. */ -mng_uint32 crc (mng_datap pData, - mng_uint8p pBuf, - mng_int32 iLen) -{ - return update_crc (pData, 0xffffffffU, pBuf, iLen) ^ 0xffffffffU; -} - -/* ************************************************************************** */ -/* * * */ -/* * 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_uint32 i = ((mng_uint32)(*pBuf) << 24) + - ((mng_uint32)(*(pBuf + 1)) << 16) + - ((mng_uint32)(*(pBuf + 2)) << 8) + - (mng_uint32)(*(pBuf + 3)); - return (i); -} - -/* ************************************************************************** */ - -mng_int32 mng_get_int32 (mng_uint8p pBuf) -{ - mng_int32 i = ((mng_int32)(*pBuf) << 24) + - ((mng_int32)(*(pBuf + 1)) << 16) + - ((mng_int32)(*(pBuf + 2)) << 8) + - (mng_int32)(*(pBuf + 3)); - return (i); -} - -/* ************************************************************************** */ - -mng_uint16 mng_get_uint16 (mng_uint8p pBuf) -{ - mng_uint16 i = (mng_uint16)(((mng_uint16)(*pBuf) << 8) + - (mng_uint16)(*(pBuf + 1))); - return (i); -} - -/* ************************************************************************** */ - -void mng_put_uint32 (mng_uint8p pBuf, - mng_uint32 i) -{ - *pBuf = (mng_uint8)((i >> 24) & 0xff); - *(pBuf+1) = (mng_uint8)((i >> 16) & 0xff); - *(pBuf+2) = (mng_uint8)((i >> 8) & 0xff); - *(pBuf+3) = (mng_uint8)(i & 0xff); -} - -/* ************************************************************************** */ - -void mng_put_int32 (mng_uint8p pBuf, - mng_int32 i) -{ - *pBuf = (mng_uint8)((i >> 24) & 0xff); - *(pBuf+1) = (mng_uint8)((i >> 16) & 0xff); - *(pBuf+2) = (mng_uint8)((i >> 8) & 0xff); - *(pBuf+3) = (mng_uint8)(i & 0xff); -} - -/* ************************************************************************** */ - -void mng_put_uint16 (mng_uint8p pBuf, - mng_uint16 i) -{ - *pBuf = (mng_uint8)((i >> 8) & 0xff); - *(pBuf+1) = (mng_uint8)(i & 0xff); -} - -/* ************************************************************************** */ - -#endif /* !MNG_BIGENDIAN_SUPPORTED */ - -/* ************************************************************************** */ -/* * * */ -/* * Helper routines to simplify chunk-data extraction * */ -/* * * */ -/* ************************************************************************** */ - -#ifdef MNG_INCLUDE_READ_PROCS - -/* ************************************************************************** */ - -mng_uint8p find_null (mng_uint8p pIn) -{ - mng_uint8p pOut = pIn; - - while (*pOut) /* the read_graphic routine has made sure there's */ - pOut++; /* always at least 1 zero-byte in the buffer */ - - return pOut; -} - -/* ************************************************************************** */ - -mng_retcode inflate_buffer (mng_datap pData, - mng_uint8p pInbuf, - mng_uint32 iInsize, - mng_uint8p *pOutbuf, - mng_uint32 *iOutsize, - mng_uint32 *iRealsize) -{ - mng_retcode iRetcode = MNG_NOERROR; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INFLATE_BUFFER, MNG_LC_START) -#endif - - if (iInsize) /* anything to do ? */ - { - *iOutsize = iInsize * 3; /* estimate uncompressed size */ - /* and allocate a temporary buffer */ - MNG_ALLOC (pData, *pOutbuf, *iOutsize) - - do - { - mngzlib_inflateinit (pData); /* initialize zlib */ - /* let zlib know where to store the output */ - pData->sZlib.next_out = *pOutbuf; - /* "size - 1" so we've got space for the - zero-termination of a possible string */ - pData->sZlib.avail_out = *iOutsize - 1; - /* ok; let's inflate... */ - iRetcode = mngzlib_inflatedata (pData, iInsize, pInbuf); - /* determine actual output size */ - *iRealsize = (mng_uint32)pData->sZlib.total_out; - - mngzlib_inflatefree (pData); /* zlib's done */ - - if (iRetcode == MNG_BUFOVERFLOW) /* not enough space ? */ - { /* then get some more */ - MNG_FREEX (pData, *pOutbuf, *iOutsize) - *iOutsize = *iOutsize + iInsize; - MNG_ALLOC (pData, *pOutbuf, *iOutsize) - } - } /* repeat if we didn't have enough space */ - while ((iRetcode == MNG_BUFOVERFLOW) && - (*iOutsize < 20 * iInsize)); - - if (!iRetcode) /* if oke ? */ - *((*pOutbuf) + *iRealsize) = 0; /* then put terminator zero */ - - } - else - { - *pOutbuf = 0; /* nothing to do; then there's no output */ - *iOutsize = 0; - *iRealsize = 0; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INFLATE_BUFFER, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -#endif /* MNG_INCLUDE_READ_PROCS */ - -/* ************************************************************************** */ -/* * * */ -/* * Helper routines to simplify chunk writing * */ -/* * * */ -/* ************************************************************************** */ -/* B004 */ -#ifdef MNG_INCLUDE_WRITE_PROCS -/* B004 */ -/* ************************************************************************** */ - -mng_retcode deflate_buffer (mng_datap pData, - mng_uint8p pInbuf, - mng_uint32 iInsize, - mng_uint8p *pOutbuf, - mng_uint32 *iOutsize, - mng_uint32 *iRealsize) -{ - mng_retcode iRetcode = MNG_NOERROR; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DEFLATE_BUFFER, MNG_LC_START) -#endif - - if (iInsize) /* anything to do ? */ - { - *iOutsize = (iInsize * 5) >> 2; /* estimate compressed size */ - /* and allocate a temporary buffer */ - MNG_ALLOC (pData, *pOutbuf, *iOutsize) - - do - { - mngzlib_deflateinit (pData); /* initialize zlib */ - /* let zlib know where to store the output */ - pData->sZlib.next_out = *pOutbuf; - pData->sZlib.avail_out = *iOutsize; - /* ok; let's deflate... */ - iRetcode = mngzlib_deflatedata (pData, iInsize, pInbuf); - /* determine actual output size */ - *iRealsize = pData->sZlib.total_out; - - mngzlib_deflatefree (pData); /* zlib's done */ - - if (iRetcode == MNG_BUFOVERFLOW) /* not enough space ? */ - { /* then get some more */ - MNG_FREEX (pData, *pOutbuf, *iOutsize) - *iOutsize = *iOutsize + (iInsize >> 1); - MNG_ALLOC (pData, *pOutbuf, *iOutsize) - } - } /* repeat if we didn't have enough space */ - while (iRetcode == MNG_BUFOVERFLOW); - } - else - { - *pOutbuf = 0; /* nothing to do; then there's no output */ - *iOutsize = 0; - *iRealsize = 0; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DEFLATE_BUFFER, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -mng_retcode write_raw_chunk (mng_datap pData, - mng_chunkid iChunkname, - mng_uint32 iRawlen, - mng_uint8p pRawdata) -{ - mng_uint32 iCrc; - mng_uint32 iWritten; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_RAW_CHUNK, MNG_LC_START) -#endif - /* temporary buffer ? */ - if ((pRawdata != 0) && (pRawdata != pData->pWritebuf+8)) - { /* store length & chunktype in default buffer */ - mng_put_uint32 (pData->pWritebuf, iRawlen); - mng_put_uint32 (pData->pWritebuf+4, (mng_uint32)iChunkname); - /* calculate the crc */ - iCrc = update_crc (pData, 0xffffffffL, pData->pWritebuf+4, 4); - iCrc = update_crc (pData, iCrc, pRawdata, iRawlen) ^ 0xffffffffL; - /* store crc in default buffer */ - mng_put_uint32 (pData->pWritebuf+8, iCrc); - /* write the length & chunktype */ - if (!pData->fWritedata ((mng_handle)pData, pData->pWritebuf, 8, &iWritten)) - MNG_ERROR (pData, MNG_APPIOERROR) - - if (iWritten != 8) /* disk full ? */ - MNG_ERROR (pData, MNG_OUTPUTERROR) - /* write the temporary buffer */ - if (!pData->fWritedata ((mng_handle)pData, pRawdata, iRawlen, &iWritten)) - MNG_ERROR (pData, MNG_APPIOERROR) - - if (iWritten != iRawlen) /* disk full ? */ - MNG_ERROR (pData, MNG_OUTPUTERROR) - - /* write the crc */ - if (!pData->fWritedata ((mng_handle)pData, pData->pWritebuf+8, 4, &iWritten)) - MNG_ERROR (pData, MNG_APPIOERROR) - - if (iWritten != 4) /* disk full ? */ - MNG_ERROR (pData, MNG_OUTPUTERROR) - - } - else - { /* prefix with length & chunktype */ - mng_put_uint32 (pData->pWritebuf, iRawlen); - mng_put_uint32 (pData->pWritebuf+4, (mng_uint32)iChunkname); - /* calculate the crc */ - iCrc = crc (pData, pData->pWritebuf+4, iRawlen + 4); - /* add it to the buffer */ - mng_put_uint32 (pData->pWritebuf + iRawlen + 8, iCrc); - /* write it in a single pass */ - if (!pData->fWritedata ((mng_handle)pData, pData->pWritebuf, iRawlen + 12, &iWritten)) - MNG_ERROR (pData, MNG_APPIOERROR) - - if (iWritten != iRawlen + 12) /* disk full ? */ - MNG_ERROR (pData, MNG_OUTPUTERROR) - - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_RAW_CHUNK, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ -/* B004 */ -#endif /* MNG_INCLUDE_WRITE_PROCS */ -/* B004 */ -/* ************************************************************************** */ -/* * * */ -/* * chunk read functions * */ -/* * * */ -/* ************************************************************************** */ - -#ifdef MNG_INCLUDE_READ_PROCS - -/* ************************************************************************** */ - -READ_CHUNK (read_ihdr) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_IHDR, MNG_LC_START) -#endif - - if (iRawlen != 13) /* length oke ? */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - /* only allowed inside PNG or MNG */ - if ((pData->eSigtype != mng_it_png) && (pData->eSigtype != mng_it_mng)) - MNG_ERROR (pData, MNG_CHUNKNOTALLOWED) - /* sequence checks */ - if ((pData->eSigtype == mng_it_png) && (pData->iChunkseq > 1)) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasIDAT) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasIDAT)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - pData->bHasIHDR = MNG_TRUE; /* indicate IHDR is present */ - /* and store interesting fields */ - if ((!pData->bHasDHDR) || (pData->iDeltatype == MNG_DELTATYPE_NOCHANGE)) - { - pData->iDatawidth = mng_get_uint32 (pRawdata); - pData->iDataheight = mng_get_uint32 (pRawdata+4); - } - - pData->iBitdepth = *(pRawdata+8); - pData->iColortype = *(pRawdata+9); - pData->iCompression = *(pRawdata+10); - pData->iFilter = *(pRawdata+11); - pData->iInterlace = *(pRawdata+12); - - if ((pData->iBitdepth != 1) && /* parameter validity checks */ - (pData->iBitdepth != 2) && - (pData->iBitdepth != 4) && - (pData->iBitdepth != 8) && - (pData->iBitdepth != 16) ) - 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 ((pData->eSigtype == mng_it_png) && (pData->iFilter)) - MNG_ERROR (pData, MNG_INVALIDFILTER) - else - if (pData->iFilter & (~MNG_FILTER_DIFFERING)) - MNG_ERROR (pData, MNG_INVALIDFILTER) - - if ((pData->iInterlace != MNG_INTERLACE_NONE ) && - (pData->iInterlace != MNG_INTERLACE_ADAM7) ) - MNG_ERROR (pData, MNG_INVALIDINTERLACE) - - 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) - } - } - - 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 = 0; - /* fits on maximum canvas ? */ - if ((pData->iWidth > pData->iMaxwidth) || (pData->iHeight > pData->iMaxheight)) - MNG_WARNING (pData, MNG_IMAGETOOLARGE) - - if (pData->fProcessheader) /* inform the app ? */ - if (!pData->fProcessheader (((mng_handle)pData), pData->iWidth, pData->iHeight)) - MNG_ERROR (pData, MNG_APPMISCERROR) - } - - if (!pData->bHasDHDR) - pData->iImagelevel++; /* one level deeper */ - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_retcode iRetcode = process_display_ihdr (pData); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* fill the fields */ - ((mng_ihdrp)*ppChunk)->iWidth = mng_get_uint32 (pRawdata); - ((mng_ihdrp)*ppChunk)->iHeight = mng_get_uint32 (pRawdata+4); - ((mng_ihdrp)*ppChunk)->iBitdepth = pData->iBitdepth; - ((mng_ihdrp)*ppChunk)->iColortype = pData->iColortype; - ((mng_ihdrp)*ppChunk)->iCompression = pData->iCompression; - ((mng_ihdrp)*ppChunk)->iFilter = pData->iFilter; - ((mng_ihdrp)*ppChunk)->iInterlace = pData->iInterlace; - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_IHDR, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_plte) -{ -#if defined(MNG_SUPPORT_DISPLAY) || defined(MNG_STORE_CHUNKS) - mng_uint32 iX; - mng_uint8p pRawdata2; -#endif -#ifdef MNG_SUPPORT_DISPLAY - mng_uint32 iRawlen2; -#endif - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_PLTE, MNG_LC_START) -#endif - /* sequence checks */ - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) ) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIDAT) || (pData->bHasJHDR)) -#else - if (pData->bHasIDAT) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* multiple PLTE only inside BASI */ - if ((pData->bHasPLTE) && (!pData->bHasBASI)) - MNG_ERROR (pData, MNG_MULTIPLEERROR) - /* length must be multiple of 3 */ - if (((iRawlen % 3) != 0) || (iRawlen > 768)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) - { /* only allowed for indexed-color or - rgb(a)-color! */ - if ((pData->iColortype != 2) && (pData->iColortype != 3) && (pData->iColortype != 6)) - MNG_ERROR (pData, MNG_CHUNKNOTALLOWED) - /* empty only allowed if global present */ - if ((iRawlen == 0) && (!pData->bHasglobalPLTE)) - MNG_ERROR (pData, MNG_CANNOTBEEMPTY) - } - else - { - if (iRawlen == 0) /* 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 = iRawlen / 3; - -#ifdef MNG_SUPPORT_DISPLAY - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) - { - mng_imagep pImage; - mng_imagedatap pBuf; - - 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 = iRawlen / 3; /* this is the exact length */ - pRawdata2 = pRawdata; /* copy the entries */ - - for (iX = 0; iX < iRawlen / 3; iX++) - { - pBuf->aPLTEentries[iX].iRed = *pRawdata2; - pBuf->aPLTEentries[iX].iGreen = *(pRawdata2+1); - pBuf->aPLTEentries[iX].iBlue = *(pRawdata2+2); - - pRawdata2 += 3; - } - } - else - { /* 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 (!iRawlen) /* 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 ? */ - { /* indicate tRNS available */ - pBuf->bHasTRNS = MNG_TRUE; - - iRawlen2 = pData->iGlobalTRNSrawlen; - pRawdata2 = (mng_uint8p)(pData->aGlobalTRNSrawdata); - /* 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 = iRawlen / 3; - pRawdata2 = pRawdata; - - for (iX = 0; iX < pBuf->iPLTEcount; iX++) - { - pBuf->aPLTEentries[iX].iRed = *pRawdata2; - pBuf->aPLTEentries[iX].iGreen = *(pRawdata2+1); - pBuf->aPLTEentries[iX].iBlue = *(pRawdata2+2); - - pRawdata2 += 3; - } - } - } - } - else /* store as global */ - { - pData->iGlobalPLTEcount = iRawlen / 3; - pRawdata2 = pRawdata; - - for (iX = 0; iX < pData->iGlobalPLTEcount; iX++) - { - pData->aGlobalPLTEentries[iX].iRed = *pRawdata2; - pData->aGlobalPLTEentries[iX].iGreen = *(pRawdata2+1); - pData->aGlobalPLTEentries[iX].iBlue = *(pRawdata2+2); - - pRawdata2 += 3; - } - - { /* create an animation object */ - mng_retcode iRetcode = create_ani_plte (pData, pData->iGlobalPLTEcount, - pData->aGlobalPLTEentries); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_pltep)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - ((mng_pltep)*ppChunk)->iEntrycount = iRawlen / 3; - pRawdata2 = pRawdata; - - for (iX = 0; iX < ((mng_pltep)*ppChunk)->iEntrycount; iX++) - { - ((mng_pltep)*ppChunk)->aEntries[iX].iRed = *pRawdata2; - ((mng_pltep)*ppChunk)->aEntries[iX].iGreen = *(pRawdata2+1); - ((mng_pltep)*ppChunk)->aEntries[iX].iBlue = *(pRawdata2+2); - - pRawdata2 += 3; - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_PLTE, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_idat) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_IDAT, MNG_LC_START) -#endif - -#ifdef MNG_INCLUDE_JNG /* sequence checks */ - if ((!pData->bHasIHDR) && (!pData->bHasBASI) && (!pData->bHasDHDR) && (!pData->bHasJHDR)) -#else - if ((!pData->bHasIHDR) && (!pData->bHasBASI) && (!pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasJHDR) && - (pData->iJHDRalphacompression != MNG_COMPRESSION_DEFLATE)) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (pData->bHasJSEP) - MNG_ERROR (pData, MNG_SETQUENCEERROR) -#endif - /* not allowed for for deltatype NO_CHANGE */ - if ((pData->bHasDHDR) && ((pData->iDeltatype == MNG_DELTATYPE_NOCHANGE))) - MNG_ERROR (pData, MNG_CHUNKNOTALLOWED) - /* can only be empty in BASI-block! */ - if ((iRawlen == 0) && (!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 */ - -#ifdef MNG_SUPPORT_DISPLAY - if (iRawlen) - { /* display processing */ - mng_retcode iRetcode = process_display_idat (pData, iRawlen, pRawdata); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_idatp)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - ((mng_idatp)*ppChunk)->iDatasize = iRawlen; - - if (iRawlen != 0) /* is there any data ? */ - { - MNG_ALLOC (pData, ((mng_idatp)*ppChunk)->pData, iRawlen) - MNG_COPY (((mng_idatp)*ppChunk)->pData, pRawdata, iRawlen) - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_IDAT, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_iend) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_IEND, MNG_LC_START) -#endif - - if (iRawlen > 0) /* must not contain data! */ - MNG_ERROR (pData, MNG_INVALIDLENGTH); - -#ifdef MNG_INCLUDE_JNG /* sequence checks */ - if ((!pData->bHasIHDR) && (!pData->bHasBASI) && (!pData->bHasDHDR) && (!pData->bHasJHDR)) -#else - if ((!pData->bHasIHDR) && (!pData->bHasBASI) && (!pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* 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 = create_ani_image (pData); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* display processing */ - iRetcode = 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 Q_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 - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_IEND, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_trns) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_TRNS, MNG_LC_START) -#endif - /* sequence checks */ - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) ) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIDAT) || (pData->bHasJHDR)) -#else - if (pData->bHasIDAT) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* multiple tRNS only inside BASI */ - if ((pData->bHasTRNS) && (!pData->bHasBASI)) - MNG_ERROR (pData, MNG_MULTIPLEERROR) - - if (iRawlen > 256) /* it just can't be bigger than that! */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - 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 (iRawlen != 0) /* filled ? */ - { /* length checks */ - if ((pData->iColortype == 0) && (iRawlen != 2)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - if ((pData->iColortype == 2) && (iRawlen != 6)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#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 ((iRawlen == 0) || (iRawlen > 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; - - if (pData->bHasDHDR) /* processing delta-image ? */ - { /* store in object 0 !!! */ - pImage = (mng_imagep)pData->pObjzero; - pBuf = pImage->pImgbuf; /* address object buffer */ - - switch (pData->iColortype) /* store fields for future reference */ - { - case 0: { /* gray */ - pBuf->iTRNSgray = mng_get_uint16 (pRawdata); - pBuf->iTRNSred = 0; - pBuf->iTRNSgreen = 0; - pBuf->iTRNSblue = 0; - pBuf->iTRNScount = 0; - break; - } - case 2: { /* rgb */ - pBuf->iTRNSgray = 0; - pBuf->iTRNSred = mng_get_uint16 (pRawdata); - pBuf->iTRNSgreen = mng_get_uint16 (pRawdata+2); - pBuf->iTRNSblue = mng_get_uint16 (pRawdata+4); - pBuf->iTRNScount = 0; - break; - } - case 3: { /* indexed */ - pBuf->iTRNSgray = 0; - pBuf->iTRNSred = 0; - pBuf->iTRNSgreen = 0; - pBuf->iTRNSblue = 0; - pBuf->iTRNScount = iRawlen; - MNG_COPY (pBuf->aTRNSentries, pRawdata, iRawlen) - break; - } - } - - pBuf->bHasTRNS = MNG_TRUE; /* tell it it's got a tRNS now */ - } - else - { /* 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 */ - - if (iRawlen == 0) /* 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) - } - else - { - iRawlen2 = iRawlen; - pRawdata2 = pRawdata; - } - - switch (pData->iColortype) /* store fields for future reference */ - { - case 0: { /* gray */ - pBuf->iTRNSgray = mng_get_uint16 (pRawdata2); - pBuf->iTRNSred = 0; - pBuf->iTRNSgreen = 0; - pBuf->iTRNSblue = 0; - pBuf->iTRNScount = 0; - break; - } - case 2: { /* rgb */ - pBuf->iTRNSgray = 0; - pBuf->iTRNSred = mng_get_uint16 (pRawdata2); - pBuf->iTRNSgreen = mng_get_uint16 (pRawdata2+2); - pBuf->iTRNSblue = mng_get_uint16 (pRawdata2+4); - pBuf->iTRNScount = 0; - break; - } - case 3: { /* indexed */ - pBuf->iTRNSgray = 0; - pBuf->iTRNSred = 0; - pBuf->iTRNSgreen = 0; - pBuf->iTRNSblue = 0; - pBuf->iTRNScount = iRawlen2; - MNG_COPY (pBuf->aTRNSentries, pRawdata2, iRawlen2) - break; - } - } - } - } - else /* store as global */ - { - pData->iGlobalTRNSrawlen = iRawlen; - MNG_COPY (pData->aGlobalTRNSrawdata, pRawdata, iRawlen) - - { /* create an animation object */ - mng_retcode iRetcode = create_ani_trns (pData, pData->iGlobalTRNSrawlen, - pData->aGlobalTRNSrawdata); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) - { /* not global! */ - ((mng_trnsp)*ppChunk)->bGlobal = MNG_FALSE; - ((mng_trnsp)*ppChunk)->iType = pData->iColortype; - - if (iRawlen == 0) /* if empty, indicate so */ - ((mng_trnsp)*ppChunk)->bEmpty = MNG_TRUE; - else - { - ((mng_trnsp)*ppChunk)->bEmpty = MNG_FALSE; - - switch (pData->iColortype) /* store fields */ - { - case 0: { /* gray */ - ((mng_trnsp)*ppChunk)->iGray = mng_get_uint16 (pRawdata); - break; - } - case 2: { /* rgb */ - ((mng_trnsp)*ppChunk)->iRed = mng_get_uint16 (pRawdata); - ((mng_trnsp)*ppChunk)->iGreen = mng_get_uint16 (pRawdata+2); - ((mng_trnsp)*ppChunk)->iBlue = mng_get_uint16 (pRawdata+4); - break; - } - case 3: { /* indexed */ - ((mng_trnsp)*ppChunk)->iCount = iRawlen; - MNG_COPY (((mng_trnsp)*ppChunk)->aEntries, pRawdata, iRawlen) - break; - } - } - } - } - else /* it's global! */ - { - ((mng_trnsp)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - ((mng_trnsp)*ppChunk)->bGlobal = MNG_TRUE; - ((mng_trnsp)*ppChunk)->iType = 0; - ((mng_trnsp)*ppChunk)->iRawlen = iRawlen; - - MNG_COPY (((mng_trnsp)*ppChunk)->aRawdata, pRawdata, iRawlen) - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_TRNS, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_gama) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_GAMA, MNG_LC_START) -#endif - /* sequence checks */ -#ifdef MNG_INCLUDE_JNG - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) && (!pData->bHasJHDR)) -#else - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) ) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIDAT) || (pData->bHasPLTE) || (pData->bHasJDAT) || (pData->bHasJDAA)) -#else - if ((pData->bHasIDAT) || (pData->bHasPLTE)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - { /* length must be exactly 4 */ - if (iRawlen != 4) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - else - { /* length must be empty or exactly 4 */ - if ((iRawlen != 0) && (iRawlen != 4)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - -#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)(iRawlen != 0); - -#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; - - if (pData->bHasDHDR) /* update delta image ? */ - { /* store in object 0 ! */ - pImage = (mng_imagep)pData->pObjzero; - /* store for color-processing routines */ - pImage->pImgbuf->iGamma = mng_get_uint32 (pRawdata); - pImage->pImgbuf->bHasGAMA = MNG_TRUE; - } - else - { - 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_get_uint32 (pRawdata); - pImage->pImgbuf->bHasGAMA = MNG_TRUE; - } - } - else - { /* store as global */ - if (iRawlen != 0) - pData->iGlobalGamma = mng_get_uint32 (pRawdata); - - { /* create an animation object */ - mng_retcode iRetcode = create_ani_gama (pData, (mng_bool)(iRawlen == 0), - pData->iGlobalGamma); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_gamap)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - - if (iRawlen) - ((mng_gamap)*ppChunk)->iGamma = mng_get_uint32 (pRawdata); - - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_GAMA, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_chrm) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_CHRM, MNG_LC_START) -#endif - /* sequence checks */ -#ifdef MNG_INCLUDE_JNG - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) && (!pData->bHasJHDR)) -#else - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) ) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIDAT) || (pData->bHasPLTE) || (pData->bHasJDAT) || (pData->bHasJDAA)) -#else - if ((pData->bHasIDAT) || (pData->bHasPLTE)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - { /* length must be exactly 32 */ - if (iRawlen != 32) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - else - { /* length must be empty or exactly 32 */ - if ((iRawlen != 0) && (iRawlen != 32)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - -#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)(iRawlen != 0); - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_uint32 iWhitepointx, iWhitepointy; - mng_uint32 iPrimaryredx, iPrimaryredy; - mng_uint32 iPrimarygreenx, iPrimarygreeny; - mng_uint32 iPrimarybluex, iPrimarybluey; - - iWhitepointx = mng_get_uint32 (pRawdata); - iWhitepointy = mng_get_uint32 (pRawdata+4); - iPrimaryredx = mng_get_uint32 (pRawdata+8); - iPrimaryredy = mng_get_uint32 (pRawdata+12); - iPrimarygreenx = mng_get_uint32 (pRawdata+16); - iPrimarygreeny = mng_get_uint32 (pRawdata+20); - iPrimarybluex = mng_get_uint32 (pRawdata+24); - iPrimarybluey = mng_get_uint32 (pRawdata+28); - -#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; - - if (pData->bHasDHDR) /* update delta image ? */ - { /* store it in object 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 = iWhitepointx; - pBuf->iWhitepointy = iWhitepointy; - pBuf->iPrimaryredx = iPrimaryredx; - pBuf->iPrimaryredy = iPrimaryredy; - pBuf->iPrimarygreenx = iPrimarygreenx; - pBuf->iPrimarygreeny = iPrimarygreeny; - pBuf->iPrimarybluex = iPrimarybluex; - pBuf->iPrimarybluey = iPrimarybluey; - } - else - { - 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 = iWhitepointx; - pBuf->iWhitepointy = iWhitepointy; - pBuf->iPrimaryredx = iPrimaryredx; - pBuf->iPrimaryredy = iPrimaryredy; - pBuf->iPrimarygreenx = iPrimarygreenx; - pBuf->iPrimarygreeny = iPrimarygreeny; - pBuf->iPrimarybluex = iPrimarybluex; - pBuf->iPrimarybluey = iPrimarybluey; - } - } - else - { /* store as global */ - if (iRawlen != 0) - { - pData->iGlobalWhitepointx = iWhitepointx; - pData->iGlobalWhitepointy = iWhitepointy; - pData->iGlobalPrimaryredx = iPrimaryredx; - pData->iGlobalPrimaryredy = iPrimaryredy; - pData->iGlobalPrimarygreenx = iPrimarygreenx; - pData->iGlobalPrimarygreeny = iPrimarygreeny; - pData->iGlobalPrimarybluex = iPrimarybluex; - pData->iGlobalPrimarybluey = iPrimarybluey; - } - - { /* create an animation object */ - mng_retcode iRetcode = create_ani_chrm (pData, (mng_bool)(iRawlen == 0), - iWhitepointx, iWhitepointy, - iPrimaryredx, iPrimaryredy, - iPrimarygreenx, iPrimarygreeny, - iPrimarybluex, iPrimarybluey); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } - } - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_chrmp)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - - if (iRawlen) - { - ((mng_chrmp)*ppChunk)->iWhitepointx = mng_get_uint32 (pRawdata); - ((mng_chrmp)*ppChunk)->iWhitepointy = mng_get_uint32 (pRawdata+4); - ((mng_chrmp)*ppChunk)->iRedx = mng_get_uint32 (pRawdata+8); - ((mng_chrmp)*ppChunk)->iRedy = mng_get_uint32 (pRawdata+12); - ((mng_chrmp)*ppChunk)->iGreenx = mng_get_uint32 (pRawdata+16); - ((mng_chrmp)*ppChunk)->iGreeny = mng_get_uint32 (pRawdata+20); - ((mng_chrmp)*ppChunk)->iBluex = mng_get_uint32 (pRawdata+24); - ((mng_chrmp)*ppChunk)->iBluey = mng_get_uint32 (pRawdata+28); - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_CHRM, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_srgb) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_SRGB, MNG_LC_START) -#endif - /* sequence checks */ -#ifdef MNG_INCLUDE_JNG - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) && (!pData->bHasJHDR)) -#else - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) ) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIDAT) || (pData->bHasPLTE) || (pData->bHasJDAT) || (pData->bHasJDAA)) -#else - if ((pData->bHasIDAT) || (pData->bHasPLTE)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - { /* length must be exactly 1 */ - if (iRawlen != 1) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - else - { /* length must be empty or exactly 1 */ - if ((iRawlen != 0) && (iRawlen != 1)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - -#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)(iRawlen != 0); - -#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; - - if (pData->bHasDHDR) /* update delta image ? */ - { /* store in object 0 ! */ - pImage = (mng_imagep)pData->pObjzero; - /* store for color-processing routines */ - pImage->pImgbuf->iRenderingintent = *pRawdata; - pImage->pImgbuf->bHasSRGB = MNG_TRUE; - } - else - { - 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 = *pRawdata; - pImage->pImgbuf->bHasSRGB = MNG_TRUE; - } - } - else - { /* store as global */ - if (iRawlen != 0) - pData->iGlobalRendintent = *pRawdata; - - { /* create an animation object */ - mng_retcode iRetcode = create_ani_srgb (pData, (mng_bool)(iRawlen == 0), - pData->iGlobalRendintent); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_srgbp)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - - if (iRawlen) - ((mng_srgbp)*ppChunk)->iRenderingintent = *pRawdata; - - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_SRGB, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_iccp) -{ - mng_retcode iRetcode; - mng_uint8p pTemp; - mng_uint32 iCompressedsize; - mng_uint32 iProfilesize; - mng_uint32 iBufsize = 0; - mng_uint8p pBuf = 0; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_ICCP, MNG_LC_START) -#endif - /* sequence checks */ -#ifdef MNG_INCLUDE_JNG - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) && (!pData->bHasJHDR)) -#else - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) ) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIDAT) || (pData->bHasPLTE) || (pData->bHasJDAT) || (pData->bHasJDAA)) -#else - if ((pData->bHasIDAT) || (pData->bHasPLTE)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - { /* length must be at least 2 */ - if (iRawlen < 2) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - else - { /* length must be empty or at least 2 */ - if ((iRawlen != 0) && (iRawlen < 2)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - - pTemp = find_null (pRawdata); /* find null-separator */ - /* not found inside input-data ? */ - if ((pTemp - pRawdata) > (mng_int32)iRawlen) - MNG_ERROR (pData, MNG_NULLNOTFOUND) - /* determine size of compressed profile */ - iCompressedsize = (mng_uint32)(iRawlen - (pTemp - pRawdata) - 2); - /* decompress the profile */ - iRetcode = inflate_buffer (pData, pTemp+2, iCompressedsize, - &pBuf, &iBufsize, &iProfilesize); - -#ifdef MNG_CHECK_BAD_ICCP /* Check for bad iCCP chunk */ - if ((iRetcode) && (!strncmp ((char *)pRawdata, "Photoshop ICC profile", 21))) - { - if (iRawlen == 2615) /* is it the sRGB profile ? */ - { - mng_chunk_header chunk_srgb = {MNG_UINT_sRGB, init_srgb, free_srgb, - read_srgb, write_srgb, 0, 0}; - /* pretend it's an sRGB chunk then ! */ - iRetcode = read_srgb (pData, &chunk_srgb, 1, (mng_ptr)"0", ppChunk); - - if (iRetcode) /* on error bail out */ - { /* don't forget to drop the temp buffer */ - MNG_FREEX (pData, pBuf, iBufsize) - return iRetcode; - } - } - } - else - { -#endif /* MNG_CHECK_BAD_ICCP */ - - if (iRetcode) /* on error bail out */ - { /* don't forget to drop the temp buffer */ - MNG_FREEX (pData, pBuf, iBufsize) - return iRetcode; - } - -#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)(iRawlen != 0); - -#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; - - 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, iProfilesize) - MNG_COPY (pImage->pImgbuf->pProfile, pBuf, iProfilesize) - /* store it's length as well */ - pImage->pImgbuf->iProfilesize = iProfilesize; - pImage->pImgbuf->bHasICCP = MNG_TRUE; - } - else - { - 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, iProfilesize) - MNG_COPY (pImage->pImgbuf->pProfile, pBuf, iProfilesize) - /* store it's length as well */ - pImage->pImgbuf->iProfilesize = iProfilesize; - pImage->pImgbuf->bHasICCP = MNG_TRUE; - } - } - else - { /* store as global */ - if (iRawlen == 0) /* empty chunk ? */ - { - if (pData->pGlobalProfile) /* did we have a global profile ? */ - MNG_FREEX (pData, pData->pGlobalProfile, pData->iGlobalProfilesize) - - pData->iGlobalProfilesize = 0; /* reset to null */ - pData->pGlobalProfile = MNG_NULL; - } - else - { /* allocate a global buffer & copy it */ - MNG_ALLOC (pData, pData->pGlobalProfile, iProfilesize) - MNG_COPY (pData->pGlobalProfile, pBuf, iProfilesize) - /* store it's length as well */ - pData->iGlobalProfilesize = iProfilesize; - } - - /* create an animation object */ - iRetcode = create_ani_iccp (pData, (mng_bool)(iRawlen == 0), - pData->iGlobalProfilesize, - pData->pGlobalProfile); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - { /* don't forget to drop the temp buffer */ - MNG_FREEX (pData, pBuf, iBufsize) - return iRetcode; - } - /* store the fields */ - ((mng_iccpp)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - - if (iRawlen) /* not empty ? */ - { - if (!pBuf) /* hasn't been unpuzzled it yet ? */ - { /* find null-separator */ - pTemp = find_null (pRawdata); - /* not found inside input-data ? */ - if ((pTemp - pRawdata) > (mng_int32)iRawlen) - MNG_ERROR (pData, MNG_NULLNOTFOUND) - /* determine size of compressed profile */ - iCompressedsize = iRawlen - (pTemp - pRawdata) - 2; - /* decompress the profile */ - iRetcode = inflate_buffer (pData, pTemp+2, iCompressedsize, - &pBuf, &iBufsize, &iProfilesize); - - if (iRetcode) /* on error bail out */ - { /* don't forget to drop the temp buffer */ - MNG_FREEX (pData, pBuf, iBufsize) - return iRetcode; - } - } - - ((mng_iccpp)*ppChunk)->iNamesize = (mng_uint32)(pTemp - pRawdata); - - if (((mng_iccpp)*ppChunk)->iNamesize) - { - MNG_ALLOC (pData, ((mng_iccpp)*ppChunk)->zName, - ((mng_iccpp)*ppChunk)->iNamesize + 1) - MNG_COPY (((mng_iccpp)*ppChunk)->zName, pRawdata, - ((mng_iccpp)*ppChunk)->iNamesize) - } - - ((mng_iccpp)*ppChunk)->iCompression = *(pTemp+1); - ((mng_iccpp)*ppChunk)->iProfilesize = iProfilesize; - - MNG_ALLOC (pData, ((mng_iccpp)*ppChunk)->pProfile, iProfilesize) - MNG_COPY (((mng_iccpp)*ppChunk)->pProfile, pBuf, iProfilesize) - } - } -#endif /* MNG_STORE_CHUNKS */ - - if (pBuf) /* free the temporary buffer */ - MNG_FREEX (pData, pBuf, iBufsize) - -#ifdef MNG_CHECK_BAD_ICCP - } -#endif - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_ICCP, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_text) -{ - mng_uint32 iKeywordlen, iTextlen; - mng_pchar zKeyword, zText; - mng_uint8p pTemp; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_TEXT, MNG_LC_START) -#endif - /* sequence checks */ -#ifdef MNG_INCLUDE_JNG - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) && (!pData->bHasJHDR)) -#else - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) ) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen < 2) /* length must be at least 2 */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - pTemp = find_null (pRawdata); /* find the null separator */ - /* not found inside input-data ? */ - if ((pTemp - pRawdata) > (mng_int32)iRawlen) - MNG_ERROR (pData, MNG_NULLNOTFOUND) - - if (pTemp == pRawdata) /* there must be at least 1 char for keyword */ - MNG_ERROR (pData, MNG_KEYWORDNULL) - - iKeywordlen = (mng_uint32)(pTemp - pRawdata); - iTextlen = iRawlen - iKeywordlen - 1; - - if (pData->fProcesstext) /* inform the application ? */ - { - mng_bool bOke; - - MNG_ALLOC (pData, zKeyword, iKeywordlen + 1) - MNG_COPY (zKeyword, pRawdata, iKeywordlen) - - MNG_ALLOCX (pData, zText, iTextlen + 1) - - if (!zText) /* on error bail out */ - { - MNG_FREEX (pData, zKeyword, iKeywordlen + 1) - MNG_ERROR (pData, MNG_OUTOFMEMORY) - } - - if (iTextlen) - MNG_COPY (zText, pTemp+1, iTextlen) - - bOke = pData->fProcesstext ((mng_handle)pData, MNG_TYPE_TEXT, zKeyword, zText, 0, 0); - - MNG_FREEX (pData, zText, iTextlen + 1) - MNG_FREEX (pData, zKeyword, iKeywordlen + 1) - - if (!bOke) - MNG_ERROR (pData, MNG_APPMISCERROR) - - } - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_textp)*ppChunk)->iKeywordsize = iKeywordlen; - ((mng_textp)*ppChunk)->iTextsize = iTextlen; - - if (iKeywordlen) - { - MNG_ALLOC (pData, ((mng_textp)*ppChunk)->zKeyword, iKeywordlen+1) - MNG_COPY (((mng_textp)*ppChunk)->zKeyword, pRawdata, iKeywordlen) - } - - if (iTextlen) - { - MNG_ALLOC (pData, ((mng_textp)*ppChunk)->zText, iTextlen+1) - MNG_COPY (((mng_textp)*ppChunk)->zText, pTemp+1, iTextlen) - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_TEXT, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_ztxt) -{ - mng_retcode iRetcode; - mng_uint32 iKeywordlen, iTextlen; - mng_pchar zKeyword; - mng_uint8p pTemp; - mng_uint32 iCompressedsize; - mng_uint32 iBufsize; - mng_uint8p pBuf; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_ZTXT, MNG_LC_START) -#endif - /* sequence checks */ -#ifdef MNG_INCLUDE_JNG - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) && (!pData->bHasJHDR)) -#else - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) ) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen < 3) /* length must be at least 3 */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - pTemp = find_null (pRawdata); /* find the null separator */ - /* not found inside input-data ? */ - if ((pTemp - pRawdata) > (mng_int32)iRawlen) - MNG_ERROR (pData, MNG_NULLNOTFOUND) - - if (pTemp == pRawdata) /* there must be at least 1 char for keyword */ - MNG_ERROR (pData, MNG_KEYWORDNULL) - - if (*(pTemp+1) != 0) /* only deflate compression-method allowed */ - MNG_ERROR (pData, MNG_INVALIDCOMPRESS) - - iKeywordlen = (mng_uint32)(pTemp - pRawdata); - iCompressedsize = (mng_uint32)(iRawlen - iKeywordlen - 2); - - zKeyword = 0; /* there's no keyword buffer yet */ - pBuf = 0; /* or a temporary buffer ! */ - - if (pData->fProcesstext) /* inform the application ? */ - { /* decompress the text */ - iRetcode = inflate_buffer (pData, pTemp+2, iCompressedsize, - &pBuf, &iBufsize, &iTextlen); - - if (iRetcode) /* on error bail out */ - { /* don't forget to drop the temp buffers */ - MNG_FREEX (pData, pBuf, iBufsize) - return iRetcode; - } - - MNG_ALLOCX (pData, zKeyword, iKeywordlen+1) - - if (!zKeyword) /* on error bail out */ - { /* don't forget to drop the temp buffers */ - MNG_FREEX (pData, pBuf, iBufsize) - MNG_ERROR (pData, MNG_OUTOFMEMORY); - } - - MNG_COPY (zKeyword, pRawdata, iKeywordlen) - - if (!pData->fProcesstext ((mng_handle)pData, MNG_TYPE_ZTXT, zKeyword, (mng_pchar)pBuf, 0, 0)) - { /* don't forget to drop the temp buffers */ - MNG_FREEX (pData, pBuf, iBufsize) - MNG_FREEX (pData, zKeyword, iKeywordlen+1) - MNG_ERROR (pData, MNG_APPMISCERROR) - } - } - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - { /* don't forget to drop the temp buffers */ - MNG_FREEX (pData, pBuf, iBufsize) - MNG_FREEX (pData, zKeyword, iKeywordlen+1) - return iRetcode; - } - /* store the fields */ - ((mng_ztxtp)*ppChunk)->iKeywordsize = iKeywordlen; - ((mng_ztxtp)*ppChunk)->iCompression = *(pTemp+1); - - if ((!pBuf) && (iCompressedsize)) /* did we not get a text-buffer yet ? */ - { /* decompress the text */ - iRetcode = inflate_buffer (pData, pTemp+2, iCompressedsize, - &pBuf, &iBufsize, &iTextlen); - - if (iRetcode) /* on error bail out */ - { /* don't forget to drop the temp buffers */ - MNG_FREEX (pData, pBuf, iBufsize) - MNG_FREEX (pData, zKeyword, iKeywordlen+1) - return iRetcode; - } - } - - MNG_ALLOCX (pData, ((mng_ztxtp)*ppChunk)->zKeyword, iKeywordlen + 1) - /* on error bail out */ - if (!((mng_ztxtp)*ppChunk)->zKeyword) - { /* don't forget to drop the temp buffers */ - MNG_FREEX (pData, pBuf, iBufsize) - MNG_FREEX (pData, zKeyword, iKeywordlen+1) - MNG_ERROR (pData, MNG_OUTOFMEMORY); - } - - MNG_COPY (((mng_ztxtp)*ppChunk)->zKeyword, pRawdata, iKeywordlen) - - ((mng_ztxtp)*ppChunk)->iTextsize = iTextlen; - - if (iCompressedsize) - { - MNG_ALLOCX (pData, ((mng_ztxtp)*ppChunk)->zText, iTextlen + 1) - /* on error bail out */ - if (!((mng_ztxtp)*ppChunk)->zText) - { /* don't forget to drop the temp buffers */ - MNG_FREEX (pData, pBuf, iBufsize) - MNG_FREEX (pData, zKeyword, iKeywordlen+1) - MNG_ERROR (pData, MNG_OUTOFMEMORY); - } - - MNG_COPY (((mng_ztxtp)*ppChunk)->zText, pBuf, iTextlen) - } - } -#endif /* MNG_STORE_CHUNKS */ - - MNG_FREEX (pData, pBuf, iBufsize) /* free the temporary buffers */ - MNG_FREEX (pData, zKeyword, iKeywordlen+1) - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_ZTXT, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_itxt) -{ - mng_retcode iRetcode; - mng_uint32 iKeywordlen, iTextlen, iLanguagelen, iTranslationlen; - mng_pchar zKeyword, zLanguage, zTranslation; - mng_uint8p pNull1, pNull2, pNull3; - mng_uint32 iCompressedsize; - mng_uint8 iCompressionflag; - mng_uint32 iBufsize; - mng_uint8p pBuf; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_ITXT, MNG_LC_START) -#endif - /* sequence checks */ -#ifdef MNG_INCLUDE_JNG - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) && (!pData->bHasJHDR)) -#else - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) ) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen < 6) /* length must be at least 6 */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - pNull1 = find_null (pRawdata); /* find the null separators */ - pNull2 = find_null (pNull1+3); - pNull3 = find_null (pNull2+1); - /* not found inside input-data ? */ - if (((pNull1 - pRawdata) > (mng_int32)iRawlen) || - ((pNull2 - pRawdata) > (mng_int32)iRawlen) || - ((pNull3 - pRawdata) > (mng_int32)iRawlen) ) - MNG_ERROR (pData, MNG_NULLNOTFOUND) - - if (pNull1 == pRawdata) /* there must be at least 1 char for keyword */ - MNG_ERROR (pData, MNG_KEYWORDNULL) - /* compression or not ? */ - if ((*(pNull1+1) != 0) && (*(pNull1+1) != 1)) - MNG_ERROR (pData, MNG_INVALIDCOMPRESS) - - if (*(pNull1+2) != 0) /* only deflate compression-method allowed */ - MNG_ERROR (pData, MNG_INVALIDCOMPRESS) - - iKeywordlen = (mng_uint32)(pNull1 - pRawdata); - iLanguagelen = (mng_uint32)(pNull2 - pNull1 - 3); - iTranslationlen = (mng_uint32)(pNull3 - pNull2 - 1); - iCompressedsize = (mng_uint32)(iRawlen - iKeywordlen - iLanguagelen - iTranslationlen - 5); - iCompressionflag = *(pNull1+1); - - zKeyword = 0; /* no buffers acquired yet */ - zLanguage = 0; - zTranslation = 0; - pBuf = 0; - iTextlen = 0; - - if (pData->fProcesstext) /* inform the application ? */ - { - if (iCompressionflag) /* decompress the text ? */ - { - iRetcode = inflate_buffer (pData, pNull3+1, iCompressedsize, - &pBuf, &iBufsize, &iTextlen); - - if (iRetcode) /* on error bail out */ - { /* don't forget to drop the temp buffer */ - MNG_FREEX (pData, pBuf, iBufsize) - return iRetcode; - } - } - else - { - iTextlen = iCompressedsize; - iBufsize = iTextlen+1; /* plus 1 for terminator byte!!! */ - - MNG_ALLOCX (pData, pBuf, iBufsize); - MNG_COPY (pBuf, pNull3+1, iTextlen); - } - - MNG_ALLOCX (pData, zKeyword, iKeywordlen + 1) - MNG_ALLOCX (pData, zLanguage, iLanguagelen + 1) - MNG_ALLOCX (pData, zTranslation, iTranslationlen + 1) - /* on error bail out */ - if ((!zKeyword) || (!zLanguage) || (!zTranslation)) - { /* don't forget to drop the temp buffers */ - MNG_FREEX (pData, zTranslation, iTranslationlen + 1) - MNG_FREEX (pData, zLanguage, iLanguagelen + 1) - MNG_FREEX (pData, zKeyword, iKeywordlen + 1) - MNG_FREEX (pData, pBuf, iBufsize) - MNG_ERROR (pData, MNG_OUTOFMEMORY) - } - - MNG_COPY (zKeyword, pRawdata, iKeywordlen) - MNG_COPY (zLanguage, pNull1+3, iLanguagelen) - MNG_COPY (zTranslation, pNull2+1, iTranslationlen) - - if (!pData->fProcesstext ((mng_handle)pData, MNG_TYPE_ITXT, zKeyword, (mng_pchar)pBuf, - zLanguage, zTranslation)) - { /* don't forget to drop the temp buffers */ - MNG_FREEX (pData, zTranslation, iTranslationlen + 1) - MNG_FREEX (pData, zLanguage, iLanguagelen + 1) - MNG_FREEX (pData, zKeyword, iKeywordlen + 1) - MNG_FREEX (pData, pBuf, iBufsize) - - MNG_ERROR (pData, MNG_APPMISCERROR) - } - } - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - { /* don't forget to drop the temp buffers */ - MNG_FREEX (pData, zTranslation, iTranslationlen + 1) - MNG_FREEX (pData, zLanguage, iLanguagelen + 1) - MNG_FREEX (pData, zKeyword, iKeywordlen + 1) - MNG_FREEX (pData, pBuf, iBufsize) - return iRetcode; - } - /* store the fields */ - ((mng_itxtp)*ppChunk)->iKeywordsize = iKeywordlen; - ((mng_itxtp)*ppChunk)->iLanguagesize = iLanguagelen; - ((mng_itxtp)*ppChunk)->iTranslationsize = iTranslationlen; - ((mng_itxtp)*ppChunk)->iCompressionflag = *(pNull1+1); - ((mng_itxtp)*ppChunk)->iCompressionmethod = *(pNull1+2); - - if ((!pBuf) && (iCompressedsize)) /* did we not get a text-buffer yet ? */ - { - if (iCompressionflag) /* decompress the text ? */ - { - iRetcode = inflate_buffer (pData, pNull3+1, iCompressedsize, - &pBuf, &iBufsize, &iTextlen); - - if (iRetcode) /* on error bail out */ - { /* don't forget to drop the temp buffers */ - MNG_FREEX (pData, zTranslation, iTranslationlen + 1) - MNG_FREEX (pData, zLanguage, iLanguagelen + 1) - MNG_FREEX (pData, zKeyword, iKeywordlen + 1) - MNG_FREEX (pData, pBuf, iBufsize) - return iRetcode; - } - } - else - { - iTextlen = iCompressedsize; - iBufsize = iTextlen+1; /* plus 1 for terminator byte!!! */ - - MNG_ALLOCX (pData, pBuf, iBufsize); - MNG_COPY (pBuf, pNull3+1, iTextlen); - } - } - - MNG_ALLOCX (pData, ((mng_itxtp)*ppChunk)->zKeyword, iKeywordlen + 1) - MNG_ALLOCX (pData, ((mng_itxtp)*ppChunk)->zLanguage, iLanguagelen + 1) - MNG_ALLOCX (pData, ((mng_itxtp)*ppChunk)->zTranslation, iTranslationlen + 1) - /* on error bail out */ - if ((!((mng_itxtp)*ppChunk)->zKeyword ) || - (!((mng_itxtp)*ppChunk)->zLanguage ) || - (!((mng_itxtp)*ppChunk)->zTranslation) ) - { /* don't forget to drop the temp buffers */ - MNG_FREEX (pData, zTranslation, iTranslationlen + 1) - MNG_FREEX (pData, zLanguage, iLanguagelen + 1) - MNG_FREEX (pData, zKeyword, iKeywordlen + 1) - MNG_FREEX (pData, pBuf, iBufsize) - MNG_ERROR (pData, MNG_OUTOFMEMORY) - } - - MNG_COPY (((mng_itxtp)*ppChunk)->zKeyword, pRawdata, iKeywordlen) - MNG_COPY (((mng_itxtp)*ppChunk)->zLanguage, pNull1+3, iLanguagelen) - MNG_COPY (((mng_itxtp)*ppChunk)->zTranslation, pNull2+1, iTranslationlen) - - ((mng_itxtp)*ppChunk)->iTextsize = iTextlen; - - if (iTextlen) - { - MNG_ALLOCX (pData, ((mng_itxtp)*ppChunk)->zText, iTextlen + 1) - - if (!((mng_itxtp)*ppChunk)->zText) - { /* don't forget to drop the temp buffers */ - MNG_FREEX (pData, zTranslation, iTranslationlen + 1) - MNG_FREEX (pData, zLanguage, iLanguagelen + 1) - MNG_FREEX (pData, zKeyword, iKeywordlen + 1) - MNG_FREEX (pData, pBuf, iBufsize) - MNG_ERROR (pData, MNG_OUTOFMEMORY) - } - - MNG_COPY (((mng_itxtp)*ppChunk)->zText, pBuf, iTextlen) - } - } -#endif /* MNG_STORE_CHUNKS */ - /* free the temporary buffers */ - MNG_FREEX (pData, zTranslation, iTranslationlen + 1) - MNG_FREEX (pData, zLanguage, iLanguagelen + 1) - MNG_FREEX (pData, zKeyword, iKeywordlen + 1) - MNG_FREEX (pData, pBuf, iBufsize) - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_ITXT, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_bkgd) -{ -#ifdef MNG_SUPPORT_DISPLAY - mng_imagep pImage = (mng_imagep)pData->pCurrentobj; - mng_imagedatap pBuf; -#endif - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_BKGD, MNG_LC_START) -#endif - /* sequence checks */ -#ifdef MNG_INCLUDE_JNG - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) && (!pData->bHasJHDR)) -#else - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) ) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIDAT) || (pData->bHasJDAT) || (pData->bHasJDAA)) -#else - if (pData->bHasIDAT) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen > 6) /* it just can't be bigger than that! */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_INCLUDE_JNG /* length checks */ - if (pData->bHasJHDR) - { - if (((pData->iJHDRcolortype == 8) || (pData->iJHDRcolortype == 12)) && (iRawlen != 2)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - if (((pData->iJHDRcolortype == 10) || (pData->iJHDRcolortype == 14)) && (iRawlen != 6)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - else -#endif /* MNG_INCLUDE_JNG */ - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) - { - if (((pData->iColortype == 0) || (pData->iColortype == 4)) && (iRawlen != 2)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - if (((pData->iColortype == 2) || (pData->iColortype == 6)) && (iRawlen != 6)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - if ((pData->iColortype == 3) && (iRawlen != 1)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - else - { - if (iRawlen != 6) /* global is always 16-bit RGB ! */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - pData->bHasBKGD = MNG_TRUE; /* indicate bKGD available */ - else - pData->bHasglobalBKGD = (mng_bool)(iRawlen != 0); - -#ifdef MNG_SUPPORT_DISPLAY - if (!pImage) /* if no object dump it in obj 0 */ - pImage = (mng_imagep)pData->pObjzero; - - pBuf = pImage->pImgbuf; /* address object buffer */ - -#ifdef MNG_INCLUDE_JNG - if (pData->bHasJHDR) - { - pBuf->bHasBKGD = MNG_TRUE; /* tell the object it's got bKGD now */ - - switch (pData->iJHDRcolortype) /* store fields for future reference */ - { - case 8 : ; /* gray */ - case 12 : { /* graya */ - pBuf->iBKGDgray = mng_get_uint16 (pRawdata); - break; - } - case 10 : ; /* rgb */ - case 14 : { /* rgba */ - pBuf->iBKGDred = mng_get_uint16 (pRawdata); - pBuf->iBKGDgreen = mng_get_uint16 (pRawdata+2); - pBuf->iBKGDblue = mng_get_uint16 (pRawdata+4); - break; - } - } - } - else -#endif /* MNG_INCLUDE_JNG */ - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) - { - pBuf->bHasBKGD = MNG_TRUE; /* tell the object it's got bKGD now */ - - switch (pData->iColortype) /* store fields for future reference */ - { - case 0 : ; /* gray */ - case 4 : { /* graya */ - pBuf->iBKGDgray = mng_get_uint16 (pRawdata); - break; - } - case 2 : ; /* rgb */ - case 6 : { /* rgba */ - pBuf->iBKGDred = mng_get_uint16 (pRawdata); - pBuf->iBKGDgreen = mng_get_uint16 (pRawdata+2); - pBuf->iBKGDblue = mng_get_uint16 (pRawdata+4); - break; - } - case 3 : { /* indexed */ - pBuf->iBKGDindex = *pRawdata; - break; - } - } - } - else /* store as global */ - { - if (iRawlen) - { - pData->iGlobalBKGDred = mng_get_uint16 (pRawdata); - pData->iGlobalBKGDgreen = mng_get_uint16 (pRawdata+2); - pData->iGlobalBKGDblue = mng_get_uint16 (pRawdata+4); - } - - { /* create an animation object */ - mng_retcode iRetcode = create_ani_bkgd (pData, pData->iGlobalBKGDred, - pData->iGlobalBKGDgreen, - pData->iGlobalBKGDblue); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_bkgdp)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - ((mng_bkgdp)*ppChunk)->iType = pData->iColortype; - - if (iRawlen) - { - switch (iRawlen) /* guess from length */ - { - case 1 : { /* indexed */ - ((mng_bkgdp)*ppChunk)->iType = 3; - ((mng_bkgdp)*ppChunk)->iIndex = *pRawdata; - break; - } - case 2 : { /* gray */ - ((mng_bkgdp)*ppChunk)->iType = 0; - ((mng_bkgdp)*ppChunk)->iGray = mng_get_uint16 (pRawdata); - break; - } - case 6 : { /* rgb */ - ((mng_bkgdp)*ppChunk)->iType = 2; - ((mng_bkgdp)*ppChunk)->iRed = mng_get_uint16 (pRawdata); - ((mng_bkgdp)*ppChunk)->iGreen = mng_get_uint16 (pRawdata+2); - ((mng_bkgdp)*ppChunk)->iBlue = mng_get_uint16 (pRawdata+4); - break; - } - } - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_BKGD, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_phys) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_PHYS, MNG_LC_START) -#endif - /* sequence checks */ -#ifdef MNG_INCLUDE_JNG - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) && (!pData->bHasJHDR)) -#else - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) ) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIDAT) || (pData->bHasJDAT) || (pData->bHasJDAA)) -#else - if (pData->bHasIDAT) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* it's 9 bytes or empty; no more, no less! */ - if ((iRawlen != 9) && (iRawlen != 0)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - - - /* TODO: something !!! */ - - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_physp)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - - if (iRawlen) - { - ((mng_physp)*ppChunk)->iSizex = mng_get_uint32 (pRawdata); - ((mng_physp)*ppChunk)->iSizey = mng_get_uint32 (pRawdata+4); - ((mng_physp)*ppChunk)->iUnit = *(pRawdata+8); - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_PHYS, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_sbit) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_SBIT, MNG_LC_START) -#endif - /* sequence checks */ -#ifdef MNG_INCLUDE_JNG - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) && (!pData->bHasJHDR)) -#else - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) ) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasPLTE) || (pData->bHasIDAT) || (pData->bHasJDAT) || (pData->bHasJDAA)) -#else - if ((pData->bHasPLTE) || (pData->bHasIDAT)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen > 4) /* it just can't be bigger than that! */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_INCLUDE_JNG /* length checks */ - if (pData->bHasJHDR) - { - if ((pData->iJHDRcolortype == 8) && (iRawlen != 1)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - if ((pData->iJHDRcolortype == 10) && (iRawlen != 3)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - if ((pData->iJHDRcolortype == 12) && (iRawlen != 2)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - if ((pData->iJHDRcolortype == 14) && (iRawlen != 4)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - else -#endif /* MNG_INCLUDE_JNG */ - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) - { - if ((pData->iColortype == 0) && (iRawlen != 1)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - if ((pData->iColortype == 2) && (iRawlen != 3)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - if ((pData->iColortype == 3) && (iRawlen != 3)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - if ((pData->iColortype == 4) && (iRawlen != 2)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - if ((pData->iColortype == 6) && (iRawlen != 4)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - else - { /* global = empty or RGBA */ - if ((iRawlen != 0) && (iRawlen != 4)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - -#ifdef MNG_SUPPORT_DISPLAY - { - - - /* TODO: something !!! */ - - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_sbitp)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - - if (iRawlen) - { -#ifdef MNG_INCLUDE_JNG - if (pData->bHasJHDR) - ((mng_sbitp)*ppChunk)->iType = pData->iJHDRcolortype; - else -#endif - if (pData->bHasIHDR) - ((mng_sbitp)*ppChunk)->iType = pData->iColortype; - else /* global ! */ - ((mng_sbitp)*ppChunk)->iType = 6; - - if (iRawlen > 0) - ((mng_sbitp)*ppChunk)->aBits [0] = *pRawdata; - if (iRawlen > 1) - ((mng_sbitp)*ppChunk)->aBits [1] = *(pRawdata+1); - if (iRawlen > 2) - ((mng_sbitp)*ppChunk)->aBits [2] = *(pRawdata+2); - if (iRawlen > 3) - ((mng_sbitp)*ppChunk)->aBits [3] = *(pRawdata+3); - - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_SBIT, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_splt) -{ - mng_uint8p pTemp; - mng_uint32 iNamelen; - mng_uint8 iSampledepth; - mng_uint32 iRemain; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_SPLT, MNG_LC_START) -#endif - /* sequence checks */ - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) ) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (pData->bHasIDAT) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen) - { - pTemp = find_null (pRawdata); /* find null-separator */ - /* not found inside input-data ? */ - if ((pTemp - pRawdata) > (mng_int32)iRawlen) - MNG_ERROR (pData, MNG_NULLNOTFOUND) - - iNamelen = (mng_uint32)(pTemp - pRawdata); - iSampledepth = *(pTemp+1); - iRemain = (iRawlen - 2 - iNamelen); - - if ((iSampledepth != 1) && (iSampledepth != 2)) - MNG_ERROR (pData, MNG_INVSAMPLEDEPTH) - /* check remaining length */ - if ( ((iSampledepth == 1) && (iRemain % 6 != 0)) || - ((iSampledepth == 2) && (iRemain % 10 != 0)) ) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - } - else - { - pTemp = MNG_NULL; - iNamelen = 0; - iSampledepth = 0; - iRemain = 0; - } - -#ifdef MNG_SUPPORT_DISPLAY - { - - - /* TODO: something !!! */ - - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_spltp)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - - if (iRawlen) - { - ((mng_spltp)*ppChunk)->iNamesize = iNamelen; - ((mng_spltp)*ppChunk)->iSampledepth = iSampledepth; - - if (iSampledepth == 1) - ((mng_spltp)*ppChunk)->iEntrycount = iRemain / 6; - else - ((mng_spltp)*ppChunk)->iEntrycount = iRemain / 10; - - if (iNamelen) - { - MNG_ALLOC (pData, ((mng_spltp)*ppChunk)->zName, iNamelen+1) - MNG_COPY (((mng_spltp)*ppChunk)->zName, pRawdata, iNamelen) - } - - if (iRemain) - { - MNG_ALLOC (pData, ((mng_spltp)*ppChunk)->pEntries, iRemain) - MNG_COPY (((mng_spltp)*ppChunk)->pEntries, pTemp+2, iRemain) - } - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_SPLT, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_hist) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_HIST, MNG_LC_START) -#endif - /* sequence checks */ - if ((!pData->bHasIHDR) && (!pData->bHasBASI) && (!pData->bHasDHDR) ) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if ((!pData->bHasPLTE) || (pData->bHasIDAT)) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* length oke ? */ - if ( ((iRawlen & 0x01) != 0) || ((iRawlen >> 1) != pData->iPLTEcount) ) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - - - /* TODO: something !!! */ - - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { - mng_uint32 iX; - /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_histp)*ppChunk)->iEntrycount = iRawlen >> 1; - - for (iX = 0; iX < (iRawlen >> 1); iX++) - { - ((mng_histp)*ppChunk)->aEntries [iX] = mng_get_uint16 (pRawdata); - pRawdata += 2; - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_HIST, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_time) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_TIME, MNG_LC_START) -#endif - /* sequence checks */ -#ifdef MNG_INCLUDE_JNG - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) && (!pData->bHasJHDR)) -#else - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) ) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen != 7) /* length must be exactly 7 */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -/* if (pData->fProcesstime) */ /* inform the application ? */ -/* { - - pData->fProcesstime ((mng_handle)pData, ); - } */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_timep)*ppChunk)->iYear = mng_get_uint16 (pRawdata); - ((mng_timep)*ppChunk)->iMonth = *(pRawdata+2); - ((mng_timep)*ppChunk)->iDay = *(pRawdata+3); - ((mng_timep)*ppChunk)->iHour = *(pRawdata+4); - ((mng_timep)*ppChunk)->iMinute = *(pRawdata+5); - ((mng_timep)*ppChunk)->iSecond = *(pRawdata+6); - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_TIME, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_mhdr) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_MHDR, MNG_LC_START) -#endif - - if (pData->eSigtype != mng_it_mng) /* sequence checks */ - MNG_ERROR (pData, MNG_CHUNKNOTALLOWED) - - if (pData->bHasheader) /* can only be the first chunk! */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* correct length ? */ - if ((iRawlen != 28) && (iRawlen != 12)) - MNG_ERROR (pData, MNG_INVALIDLENGTH); - - pData->bHasMHDR = MNG_TRUE; /* oh boy, a real MNG */ - pData->bHasheader = MNG_TRUE; /* we've got a header */ - pData->eImagetype = mng_it_mng; /* fill header fields */ - pData->iWidth = mng_get_uint32 (pRawdata); - pData->iHeight = mng_get_uint32 (pRawdata+4); - pData->iTicks = mng_get_uint32 (pRawdata+8); - - if (iRawlen == 28) /* proper MHDR ? */ - { - pData->iLayercount = mng_get_uint32 (pRawdata+12); - pData->iFramecount = mng_get_uint32 (pRawdata+16); - pData->iPlaytime = mng_get_uint32 (pRawdata+20); - pData->iSimplicity = mng_get_uint32 (pRawdata+24); - - pData->bPreDraft48 = MNG_FALSE; - } - else /* probably pre-draft48 then */ - { - pData->iLayercount = 0; - pData->iFramecount = 0; - pData->iPlaytime = 0; - pData->iSimplicity = 0; - - pData->bPreDraft48 = MNG_TRUE; - } - /* predict alpha-depth */ - if ((pData->iSimplicity & 0x00000001) == 0) - pData->iAlphadepth = 16; /* no indicators = assume the worst */ - else - if ((pData->iSimplicity & 0x00000008) == 0) - pData->iAlphadepth = 0; /* no transparency at all */ - else - if ((pData->iSimplicity & 0x00000140) == 0x00000040) - pData->iAlphadepth = 1; /* no semi-transparency guaranteed */ - else - pData->iAlphadepth = 16; /* anything else = assume the worst */ - -#ifdef MNG_INCLUDE_JNG /* can we handle the complexity ? */ - if (pData->iSimplicity & 0x0000FC00) -#else - if (pData->iSimplicity & 0x0000FC10) -#endif - MNG_ERROR (pData, MNG_MNGTOOCOMPLEX) - /* fits on maximum canvas ? */ - if ((pData->iWidth > pData->iMaxwidth) || (pData->iHeight > pData->iMaxheight)) - MNG_WARNING (pData, MNG_IMAGETOOLARGE) - - if (pData->fProcessheader) /* inform the app ? */ - if (!pData->fProcessheader (((mng_handle)pData), pData->iWidth, pData->iHeight)) - MNG_ERROR (pData, MNG_APPMISCERROR) - - pData->iImagelevel++; /* one level deeper */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_mhdrp)*ppChunk)->iWidth = pData->iWidth; - ((mng_mhdrp)*ppChunk)->iHeight = pData->iHeight; - ((mng_mhdrp)*ppChunk)->iTicks = pData->iTicks; - ((mng_mhdrp)*ppChunk)->iLayercount = pData->iLayercount; - ((mng_mhdrp)*ppChunk)->iFramecount = pData->iFramecount; - ((mng_mhdrp)*ppChunk)->iPlaytime = pData->iPlaytime; - ((mng_mhdrp)*ppChunk)->iSimplicity = pData->iSimplicity; - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_MHDR, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_mend) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_MEND, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen > 0) /* must not contain data! */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { /* do something */ - mng_retcode iRetcode = process_display_mend (pData); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } -#endif /* MNG_SUPPORT_DISPLAY */ - - pData->bHasMHDR = MNG_FALSE; /* end of the line, bro! */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_MEND, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_loop) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_LOOP, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (!pData->bCacheplayback) /* must store playback info to work!! */ - MNG_ERROR (pData, MNG_LOOPWITHCACHEOFF) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen >= 5) /* length checks */ - { - if (iRawlen >= 6) - { - if ((iRawlen - 6) % 4 != 0) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - } - else - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_uint8 iLevel; - mng_uint32 iRepeat; - mng_uint8 iTermination = 0; - mng_uint32 iItermin = 1; - mng_uint32 iItermax = 0x7fffffffL; - mng_retcode iRetcode; - - pData->bHasLOOP = MNG_TRUE; /* indicate we're inside a loop */ - - iLevel = *pRawdata; /* determine the fields for processing */ - - if (pData->bPreDraft48) - { - iTermination = *(pRawdata+1); - - iRepeat = mng_get_uint32 (pRawdata+2); - } - else - iRepeat = mng_get_uint32 (pRawdata+1); - - if (iRawlen >= 6) - { - if (!pData->bPreDraft48) - iTermination = *(pRawdata+5); - - if (iRawlen >= 10) - { - iItermin = mng_get_uint32 (pRawdata+6); - - if (iRawlen >= 14) - { - iItermax = mng_get_uint32 (pRawdata+10); - - /* TODO: process Q_SIGNALS */ - - } - } - } - - /* create the LOOP ani-object */ - iRetcode = create_ani_loop (pData, iLevel, iRepeat, iTermination, - iItermin, iItermax, 0, 0); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - if (iRawlen >= 5) /* store the fields */ - { - ((mng_loopp)*ppChunk)->iLevel = *pRawdata; - - if (pData->bPreDraft48) - { - ((mng_loopp)*ppChunk)->iTermination = *(pRawdata+1); - ((mng_loopp)*ppChunk)->iRepeat = mng_get_uint32 (pRawdata+2); - } - else - { - ((mng_loopp)*ppChunk)->iRepeat = mng_get_uint32 (pRawdata+1); - } - - if (iRawlen >= 6) - { - if (!pData->bPreDraft48) - ((mng_loopp)*ppChunk)->iTermination = *(pRawdata+5); - - if (iRawlen >= 10) - { - ((mng_loopp)*ppChunk)->iItermin = mng_get_uint32 (pRawdata+6); - - if (iRawlen >= 14) - { - ((mng_loopp)*ppChunk)->iItermax = mng_get_uint32 (pRawdata+10); - ((mng_loopp)*ppChunk)->iCount = (iRawlen - 14) / 4; - - if (((mng_loopp)*ppChunk)->iCount) - { - MNG_ALLOC (pData, ((mng_loopp)*ppChunk)->pSignals, - ((mng_loopp)*ppChunk)->iCount << 2) - -#ifndef MNG_BIGENDIAN_SUPPORTED - { - mng_uint32 iX; - mng_uint8p pIn = pRawdata + 14; - mng_uint32p pOut = (mng_uint32p)((mng_loopp)*ppChunk)->pSignals; - - for (iX = 0; iX < ((mng_loopp)*ppChunk)->iCount; iX++) - { - *pOut++ = mng_get_uint32 (pIn); - pIn += 4; - } - } -#else - MNG_COPY (((mng_loopp)*ppChunk)->pSignals, pRawdata + 14, - ((mng_loopp)*ppChunk)->iCount << 2) -#endif /* !MNG_BIGENDIAN_SUPPORTED */ - } - } - } - } - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_LOOP, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_endl) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_ENDL, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen != 1) /* length must be exactly 1 */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - if (pData->bHasLOOP) /* are we really processing a loop ? */ - { - mng_uint8 iLevel = *pRawdata; /* get the nest level */ - /* create an ENDL animation object */ - mng_retcode iRetcode = create_ani_endl (pData, iLevel); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - { /* process it */ - mng_ani_endlp pENDL = (mng_ani_endlp)pData->pLastaniobj; - - iRetcode = pENDL->sHeader.fProcess (pData, pENDL); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } - } - else - { - - /* TODO: error abort ??? */ - - } - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_endlp)*ppChunk)->iLevel = *pRawdata; - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_ENDL, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_defi) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_DEFI, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* check the length */ - if ((iRawlen != 2) && (iRawlen != 3) && (iRawlen != 4) && - (iRawlen != 12) && (iRawlen != 28)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_retcode iRetcode; - - pData->iDEFIobjectid = mng_get_uint16 (pRawdata); - - if (iRawlen > 2) - { - pData->bDEFIhasdonotshow = MNG_TRUE; - pData->iDEFIdonotshow = *(pRawdata+2); - } - else - { - pData->bDEFIhasdonotshow = MNG_FALSE; - pData->iDEFIdonotshow = 0; - } - - if (iRawlen > 3) - { - pData->bDEFIhasconcrete = MNG_TRUE; - pData->iDEFIconcrete = *(pRawdata+3); - } - else - { - pData->bDEFIhasconcrete = MNG_FALSE; - pData->iDEFIconcrete = 0; - } - - if (iRawlen > 4) - { - pData->bDEFIhasloca = MNG_TRUE; - pData->iDEFIlocax = mng_get_int32 (pRawdata+4); - pData->iDEFIlocay = mng_get_int32 (pRawdata+8); - } - else - { - pData->bDEFIhasloca = MNG_FALSE; - pData->iDEFIlocax = 0; - pData->iDEFIlocay = 0; - } - - if (iRawlen > 12) - { - pData->bDEFIhasclip = MNG_TRUE; - pData->iDEFIclipl = mng_get_int32 (pRawdata+12); - pData->iDEFIclipr = mng_get_int32 (pRawdata+16); - pData->iDEFIclipt = mng_get_int32 (pRawdata+20); - pData->iDEFIclipb = mng_get_int32 (pRawdata+24); - } - else - { - pData->bDEFIhasclip = MNG_FALSE; - pData->iDEFIclipl = 0; - pData->iDEFIclipr = 0; - pData->iDEFIclipt = 0; - pData->iDEFIclipb = 0; - } - /* create an animation object */ - iRetcode = create_ani_defi (pData); - - if (!iRetcode) /* do display processing */ - iRetcode = process_display_defi (pData); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_defip)*ppChunk)->iObjectid = mng_get_uint16 (pRawdata); - - if (iRawlen > 2) - { - ((mng_defip)*ppChunk)->bHasdonotshow = MNG_TRUE; - ((mng_defip)*ppChunk)->iDonotshow = *(pRawdata+2); - } - else - ((mng_defip)*ppChunk)->bHasdonotshow = MNG_FALSE; - - if (iRawlen > 3) - { - ((mng_defip)*ppChunk)->bHasconcrete = MNG_TRUE; - ((mng_defip)*ppChunk)->iConcrete = *(pRawdata+3); - } - else - ((mng_defip)*ppChunk)->bHasconcrete = MNG_FALSE; - - if (iRawlen > 4) - { - ((mng_defip)*ppChunk)->bHasloca = MNG_TRUE; - ((mng_defip)*ppChunk)->iXlocation = mng_get_int32 (pRawdata+4); - ((mng_defip)*ppChunk)->iYlocation = mng_get_int32 (pRawdata+8); - } - else - ((mng_defip)*ppChunk)->bHasloca = MNG_FALSE; - - if (iRawlen > 12) - { - ((mng_defip)*ppChunk)->bHasclip = MNG_TRUE; - ((mng_defip)*ppChunk)->iLeftcb = mng_get_int32 (pRawdata+12); - ((mng_defip)*ppChunk)->iRightcb = mng_get_int32 (pRawdata+16); - ((mng_defip)*ppChunk)->iTopcb = mng_get_int32 (pRawdata+20); - ((mng_defip)*ppChunk)->iBottomcb = mng_get_int32 (pRawdata+24); - } - else - ((mng_defip)*ppChunk)->bHasclip = MNG_FALSE; - - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_DEFI, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_basi) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_BASI, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* check the length */ - if ((iRawlen != 13) && (iRawlen != 19) && (iRawlen != 21) && (iRawlen != 22)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - pData->bHasBASI = MNG_TRUE; /* inside a BASI-IEND block now */ - /* store interesting fields */ - pData->iDatawidth = mng_get_uint32 (pRawdata); - pData->iDataheight = mng_get_uint32 (pRawdata+4); - pData->iBitdepth = *(pRawdata+8); - pData->iColortype = *(pRawdata+9); - pData->iCompression = *(pRawdata+10); - pData->iFilter = *(pRawdata+11); - pData->iInterlace = *(pRawdata+12); - - if ((pData->iBitdepth != 1) && /* parameter validity checks */ - (pData->iBitdepth != 2) && - (pData->iBitdepth != 4) && - (pData->iBitdepth != 8) && - (pData->iBitdepth != 16) ) - 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 (pData->iFilter & (~MNG_FILTER_DIFFERING)) - MNG_ERROR (pData, MNG_INVALIDFILTER) - - if ((pData->iInterlace != MNG_INTERLACE_NONE ) && - (pData->iInterlace != MNG_INTERLACE_ADAM7) ) - MNG_ERROR (pData, MNG_INVALIDINTERLACE) - - pData->iImagelevel++; /* one level deeper */ - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_uint16 iRed = 0; - mng_uint16 iGreen = 0; - mng_uint16 iBlue = 0; - mng_bool bHasalpha = MNG_FALSE; - mng_uint16 iAlpha = 0xFFFF; - mng_uint8 iViewable = 0; - mng_retcode iRetcode; - - if (iRawlen > 13) /* get remaining fields, if any */ - { - iRed = mng_get_uint16 (pRawdata+13); - iGreen = mng_get_uint16 (pRawdata+15); - iBlue = mng_get_uint16 (pRawdata+17); - } - - if (iRawlen > 19) - { - bHasalpha = MNG_TRUE; - iAlpha = mng_get_uint16 (pRawdata+19); - } - - if (iRawlen > 21) - iViewable = *(pRawdata+21); - /* create an animation object */ - iRetcode = create_ani_basi (pData, iRed, iGreen, iBlue, - bHasalpha, iAlpha, iViewable); - - if (!iRetcode) /* display-processing... */ - iRetcode = process_display_basi (pData, iRed, iGreen, iBlue, - bHasalpha, iAlpha, iViewable); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_basip)*ppChunk)->iWidth = mng_get_uint32 (pRawdata); - ((mng_basip)*ppChunk)->iHeight = mng_get_uint32 (pRawdata+4); - ((mng_basip)*ppChunk)->iBitdepth = *(pRawdata+8); - ((mng_basip)*ppChunk)->iColortype = *(pRawdata+9); - ((mng_basip)*ppChunk)->iCompression = *(pRawdata+10); - ((mng_basip)*ppChunk)->iFilter = *(pRawdata+11); - ((mng_basip)*ppChunk)->iInterlace = *(pRawdata+12); - - if (iRawlen > 13) - { - ((mng_basip)*ppChunk)->iRed = mng_get_uint16 (pRawdata+13); - ((mng_basip)*ppChunk)->iGreen = mng_get_uint16 (pRawdata+15); - ((mng_basip)*ppChunk)->iBlue = mng_get_uint16 (pRawdata+17); - } - - if (iRawlen > 19) - ((mng_basip)*ppChunk)->iAlpha = mng_get_uint16 (pRawdata+19); - - if (iRawlen > 21) - ((mng_basip)*ppChunk)->iViewable = *(pRawdata+21); - - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_BASI, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_clon) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_CLON, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* check the length */ - if ((iRawlen != 4) && (iRawlen != 5) && (iRawlen != 6) && - (iRawlen != 7) && (iRawlen != 16)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_uint16 iSourceid, iCloneid; - mng_uint8 iClonetype = 0; - mng_bool bHasdonotshow = MNG_FALSE; - mng_uint8 iDonotshow = 0; - mng_uint8 iConcrete = 0; - mng_bool bHasloca = MNG_FALSE; - mng_uint8 iLocationtype = 0; - mng_int32 iLocationx = 0; - mng_int32 iLocationy = 0; - mng_retcode iRetcode; - - iSourceid = mng_get_uint16 (pRawdata); - iCloneid = mng_get_uint16 (pRawdata+2); - - if (iRawlen > 4) - iClonetype = *(pRawdata+4); - - if (iRawlen > 5) - { - bHasdonotshow = MNG_TRUE; - iDonotshow = *(pRawdata+5); - } - - if (iRawlen > 6) - iConcrete = *(pRawdata+6); - - if (iRawlen > 7) - { - bHasloca = MNG_TRUE; - iLocationtype = *(pRawdata+7); - iLocationx = mng_get_int32 (pRawdata+8); - iLocationy = mng_get_int32 (pRawdata+12); - } - - iRetcode = create_ani_clon (pData, iSourceid, iCloneid, iClonetype, - bHasdonotshow, iDonotshow, iConcrete, - bHasloca, iLocationtype, iLocationx, iLocationy); - - if (!iRetcode) /* do display processing */ - iRetcode = process_display_clon (pData, iSourceid, iCloneid, iClonetype, - bHasdonotshow, iDonotshow, iConcrete, - bHasloca, iLocationtype, iLocationx, iLocationy); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_clonp)*ppChunk)->iSourceid = mng_get_uint16 (pRawdata); - ((mng_clonp)*ppChunk)->iCloneid = mng_get_uint16 (pRawdata+2); - - if (iRawlen > 4) - ((mng_clonp)*ppChunk)->iClonetype = *(pRawdata+4); - - if (iRawlen > 5) - ((mng_clonp)*ppChunk)->iDonotshow = *(pRawdata+5); - - if (iRawlen > 6) - ((mng_clonp)*ppChunk)->iConcrete = *(pRawdata+6); - - if (iRawlen > 7) - { - ((mng_clonp)*ppChunk)->bHasloca = MNG_TRUE; - ((mng_clonp)*ppChunk)->iLocationtype = *(pRawdata+7); - ((mng_clonp)*ppChunk)->iLocationx = mng_get_int32 (pRawdata+8); - ((mng_clonp)*ppChunk)->iLocationy = mng_get_int32 (pRawdata+12); - } - else - { - ((mng_clonp)*ppChunk)->bHasloca = MNG_FALSE; - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_CLON, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_past) -{ -#ifdef MNG_STORE_CHUNKS - mng_uint32 iCount; -#endif - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_PAST, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - /* check the length */ - if ((iRawlen < 41) || (((iRawlen - 11) % 30) != 0)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_STORE_CHUNKS - iCount = ((iRawlen - 11) / 30); /* how many entries again */ -#endif - -#ifdef MNG_SUPPORT_DISPLAY - { - - - /* TODO: something !!! */ - - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { - mng_uint32 iX; - mng_past_sourcep pSource; - /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_pastp)*ppChunk)->iDestid = mng_get_uint16 (pRawdata); - ((mng_pastp)*ppChunk)->iTargettype = *(pRawdata+2); - ((mng_pastp)*ppChunk)->iTargetx = mng_get_int32 (pRawdata+3); - ((mng_pastp)*ppChunk)->iTargety = mng_get_int32 (pRawdata+7); - ((mng_pastp)*ppChunk)->iCount = iCount; - - pRawdata += 11; - /* get a buffer for all the source blocks */ - MNG_ALLOC (pData, ((mng_pastp)*ppChunk)->pSources, (iCount * sizeof (mng_past_source))) - - pSource = ((mng_pastp)*ppChunk)->pSources; - - for (iX = 0; iX < iCount; iX++) /* now copy the source blocks */ - { - pSource->iSourceid = mng_get_uint16 (pRawdata); - pSource->iComposition = *(pRawdata+2); - pSource->iOrientation = *(pRawdata+3); - pSource->iOffsettype = *(pRawdata+4); - pSource->iOffsetx = mng_get_int32 (pRawdata+5); - pSource->iOffsety = mng_get_int32 (pRawdata+9); - pSource->iBoundarytype = *(pRawdata+13); - pSource->iBoundaryl = mng_get_int32 (pRawdata+14); - pSource->iBoundaryr = mng_get_int32 (pRawdata+18); - pSource->iBoundaryt = mng_get_int32 (pRawdata+22); - pSource->iBoundaryb = mng_get_int32 (pRawdata+26); - - pSource += sizeof (mng_past_source); - pRawdata += 30; - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_PAST, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_disc) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_DISC, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if ((iRawlen % 2) != 0) /* check the length */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { /* process it */ - mng_retcode iRetcode = process_display_disc (pData, (iRawlen / 2), - (mng_uint16p)pRawdata); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_discp)*ppChunk)->iCount = iRawlen / 2; - - MNG_ALLOC (pData, ((mng_discp)*ppChunk)->pObjectids, iRawlen) - -#ifndef MNG_BIGENDIAN_SUPPORTED - { - mng_uint32 iX; - mng_uint8p pIn = pRawdata; - mng_uint16p pOut = ((mng_discp)*ppChunk)->pObjectids; - - for (iX = 0; iX < ((mng_discp)*ppChunk)->iCount; iX++) - { - *pOut++ = mng_get_uint16 (pIn); - pIn += 2; - } - } -#else - MNG_COPY (((mng_discp)*ppChunk)->pObjectids, pRawdata, iRawlen) -#endif /* !MNG_BIGENDIAN_SUPPORTED */ - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_DISC, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_back) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_BACK, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* check the length */ - if ((iRawlen != 6) && (iRawlen != 7) && (iRawlen != 9) && (iRawlen != 10)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_retcode iRetcode; - /* retrieve the fields */ - pData->bHasBACK = MNG_TRUE; - pData->iBACKred = mng_get_uint16 (pRawdata); - pData->iBACKgreen = mng_get_uint16 (pRawdata+2); - pData->iBACKblue = mng_get_uint16 (pRawdata+4); - - if (iRawlen > 6) - pData->iBACKmandatory = *(pRawdata+6); - else - pData->iBACKmandatory = 0; - - if (iRawlen > 7) - pData->iBACKimageid = mng_get_uint16 (pRawdata+7); - else - pData->iBACKimageid = 0; - - if (iRawlen > 9) - pData->iBACKtile = *(pRawdata+9); - else - pData->iBACKtile = 0; - - iRetcode = create_ani_back (pData, pData->iBACKred, pData->iBACKgreen, - pData->iBACKblue, pData->iBACKmandatory, - pData->iBACKimageid, pData->iBACKtile); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_backp)*ppChunk)->iRed = mng_get_uint16 (pRawdata); - ((mng_backp)*ppChunk)->iGreen = mng_get_uint16 (pRawdata+2); - ((mng_backp)*ppChunk)->iBlue = mng_get_uint16 (pRawdata+4); - - if (iRawlen > 6) - ((mng_backp)*ppChunk)->iMandatory = *(pRawdata+6); - - if (iRawlen > 7) - ((mng_backp)*ppChunk)->iImageid = mng_get_uint16 (pRawdata+7); - - if (iRawlen > 9) - ((mng_backp)*ppChunk)->iTile = *(pRawdata+9); - - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_BACK, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_fram) -{ - mng_uint8p pTemp; -#ifdef MNG_STORE_CHUNKS - mng_uint32 iNamelen; -#endif - mng_uint32 iRemain; - mng_uint32 iRequired = 0; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_FRAM, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen <= 1) /* only framing-mode ? */ - { -#ifdef MNG_STORE_CHUNKS - iNamelen = 0; /* indicate so */ -#endif - iRemain = 0; - pTemp = MNG_NULL; - } - else - { - pTemp = find_null (pRawdata+1); /* find null-separator */ - /* not found inside input-data ? */ - if ((pTemp - pRawdata) > (mng_int32)iRawlen) - MNG_ERROR (pData, MNG_NULLNOTFOUND) - -#ifdef MNG_STORE_CHUNKS - iNamelen = (mng_uint32)((pTemp - pRawdata) - 1); -#endif - iRemain = (mng_uint32)(iRawlen - (pTemp - pRawdata) - 1); - /* remains must be empty or at least 4 bytes */ - if ((iRemain != 0) && (iRemain < 4)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - if (iRemain) - { - iRequired = 4; /* calculate and check required remaining length */ - - if (*(pTemp+1)) { iRequired += 4; } - if (*(pTemp+2)) { iRequired += 4; } - if (*(pTemp+3)) { iRequired += 17; } - - if (*(pTemp+4)) - { - if ((iRemain - iRequired) % 4 != 0) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - else - { - if (iRemain != iRequired) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - } - } - } - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_uint8p pWork = pTemp; - mng_uint8 iFramemode = 0; - mng_uint8 iChangedelay = 0; - mng_uint32 iDelay = 0; - mng_uint8 iChangetimeout = 0; - mng_uint32 iTimeout = 0; - mng_uint8 iChangeclipping = 0; - mng_uint8 iCliptype = 0; - mng_int32 iClipl = 0; - mng_int32 iClipr = 0; - mng_int32 iClipt = 0; - mng_int32 iClipb = 0; - mng_retcode iRetcode; - - if (iRawlen) /* any data specified ? */ - { - if (*(pRawdata)) /* save the new framing mode ? */ - { - iFramemode = *(pRawdata); - - if (pData->bPreDraft48) /* old style input-stream ? */ - { - switch (iFramemode) - { - case 0: { break; } - case 1: { iFramemode = 3; break; } - case 2: { iFramemode = 4; break; } - case 3: { iFramemode = 1; break; } - case 4: { iFramemode = 1; break; } - case 5: { iFramemode = 2; break; } - default: { iFramemode = 1; break; } - } - } - } - - if (iRemain) - { - iChangedelay = *(pWork+1); - iChangetimeout = *(pWork+2); - iChangeclipping = *(pWork+3); - pWork += 5; - - if (iChangedelay) /* delay changed ? */ - { - iDelay = mng_get_uint32 (pWork); - pWork += 4; - } - - if (iChangetimeout) /* timeout changed ? */ - { - iTimeout = mng_get_uint32 (pWork); - pWork += 4; - } - - if (iChangeclipping) /* clipping changed ? */ - { - iCliptype = *pWork; - iClipl = mng_get_int32 (pWork+1); - iClipr = mng_get_int32 (pWork+5); - iClipt = mng_get_int32 (pWork+9); - iClipb = mng_get_int32 (pWork+13); - } - } - } - - iRetcode = create_ani_fram (pData, iFramemode, iChangedelay, iDelay, - iChangetimeout, iTimeout, - iChangeclipping, iCliptype, - iClipl, iClipr, iClipt, iClipb); - - if (!iRetcode) /* now go and do something */ - iRetcode = process_display_fram (pData, iFramemode, iChangedelay, iDelay, - iChangetimeout, iTimeout, - iChangeclipping, iCliptype, - iClipl, iClipr, iClipt, iClipb); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_framp)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - - if (iRawlen) - { - mng_uint8 iFramemode = *(pRawdata); - - if (pData->bPreDraft48) /* old style input-stream ? */ - { - switch (iFramemode) - { - case 1: { iFramemode = 3; break; } - case 2: { iFramemode = 4; break; } - case 3: { iFramemode = 5; break; } /* TODO: provision for mode=5 ??? */ - case 4: { iFramemode = 1; break; } - case 5: { iFramemode = 2; break; } - default: { iFramemode = 1; break; } - } - } - - ((mng_framp)*ppChunk)->iMode = iFramemode; - ((mng_framp)*ppChunk)->iNamesize = iNamelen; - - if (iNamelen) - { - MNG_ALLOC (pData, ((mng_framp)*ppChunk)->zName, iNamelen+1) - MNG_COPY (((mng_framp)*ppChunk)->zName, pRawdata+1, iNamelen) - } - - if (iRemain) - { - ((mng_framp)*ppChunk)->iChangedelay = *(pTemp+1); - ((mng_framp)*ppChunk)->iChangetimeout = *(pTemp+2); - ((mng_framp)*ppChunk)->iChangeclipping = *(pTemp+3); - ((mng_framp)*ppChunk)->iChangesyncid = *(pTemp+4); - - pTemp += 5; - - if (((mng_framp)*ppChunk)->iChangedelay) - { - ((mng_framp)*ppChunk)->iDelay = mng_get_uint32 (pTemp); - pTemp += 4; - } - - if (((mng_framp)*ppChunk)->iChangetimeout) - { - ((mng_framp)*ppChunk)->iTimeout = mng_get_uint32 (pTemp); - pTemp += 4; - } - - if (((mng_framp)*ppChunk)->iChangeclipping) - { - ((mng_framp)*ppChunk)->iBoundarytype = *pTemp; - ((mng_framp)*ppChunk)->iBoundaryl = mng_get_int32 (pTemp+1); - ((mng_framp)*ppChunk)->iBoundaryr = mng_get_int32 (pTemp+5); - ((mng_framp)*ppChunk)->iBoundaryt = mng_get_int32 (pTemp+9); - ((mng_framp)*ppChunk)->iBoundaryb = mng_get_int32 (pTemp+13); - pTemp += 17; - } - - if (((mng_framp)*ppChunk)->iChangesyncid) - { - ((mng_framp)*ppChunk)->iCount = (iRemain - iRequired) / 4; - - if (((mng_framp)*ppChunk)->iCount) - { - MNG_ALLOC (pData, ((mng_framp)*ppChunk)->pSyncids, - ((mng_framp)*ppChunk)->iCount * 4); - -#ifndef MNG_BIGENDIAN_SUPPORTED - { - mng_uint32 iX; - mng_uint32p pOut = ((mng_framp)*ppChunk)->pSyncids; - - for (iX = 0; iX < ((mng_framp)*ppChunk)->iCount; iX++) - { - *pOut++ = mng_get_uint32 (pTemp); - pTemp += 4; - } - } -#else - MNG_COPY (((mng_framp)*ppChunk)->pSyncids, pTemp, - ((mng_framp)*ppChunk)->iCount * 4) -#endif /* !MNG_BIGENDIAN_SUPPORTED */ - } - } - } - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_FRAM, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_move) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_MOVE, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen != 13) /* check the length */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_retcode iRetcode; - /* create a MOVE animation object */ - iRetcode = create_ani_move (pData, mng_get_uint16 (pRawdata), - mng_get_uint16 (pRawdata+2), - *(pRawdata+4), - mng_get_int32 (pRawdata+5), - mng_get_int32 (pRawdata+9)); - - if (!iRetcode) /* process the move */ - iRetcode = process_display_move (pData, - mng_get_uint16 (pRawdata), - mng_get_uint16 (pRawdata+2), - *(pRawdata+4), - mng_get_int32 (pRawdata+5), - mng_get_int32 (pRawdata+9)); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_movep)*ppChunk)->iFirstid = mng_get_uint16 (pRawdata); - ((mng_movep)*ppChunk)->iLastid = mng_get_uint16 (pRawdata+2); - ((mng_movep)*ppChunk)->iMovetype = *(pRawdata+4); - ((mng_movep)*ppChunk)->iMovex = mng_get_int32 (pRawdata+5); - ((mng_movep)*ppChunk)->iMovey = mng_get_int32 (pRawdata+9); - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_MOVE, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_clip) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_CLIP, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen != 21) /* check the length */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_retcode iRetcode; - /* create a CLIP animation object */ - iRetcode = create_ani_clip (pData, mng_get_uint16 (pRawdata), - mng_get_uint16 (pRawdata+2), - *(pRawdata+4), - mng_get_int32 (pRawdata+5), - mng_get_int32 (pRawdata+9), - mng_get_int32 (pRawdata+13), - mng_get_int32 (pRawdata+17)); - - if (!iRetcode) /* process the clipping */ - iRetcode = process_display_clip (pData, - mng_get_uint16 (pRawdata), - mng_get_uint16 (pRawdata+2), - *(pRawdata+4), - mng_get_int32 (pRawdata+5), - mng_get_int32 (pRawdata+9), - mng_get_int32 (pRawdata+13), - mng_get_int32 (pRawdata+17)); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_clipp)*ppChunk)->iFirstid = mng_get_uint16 (pRawdata); - ((mng_clipp)*ppChunk)->iLastid = mng_get_uint16 (pRawdata+2); - ((mng_clipp)*ppChunk)->iCliptype = *(pRawdata+4); - ((mng_clipp)*ppChunk)->iClipl = mng_get_int32 (pRawdata+5); - ((mng_clipp)*ppChunk)->iClipr = mng_get_int32 (pRawdata+9); - ((mng_clipp)*ppChunk)->iClipt = mng_get_int32 (pRawdata+13); - ((mng_clipp)*ppChunk)->iClipb = mng_get_int32 (pRawdata+17); - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_CLIP, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_show) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_SHOW, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* check the length */ - if ((iRawlen != 0) && (iRawlen != 2) && (iRawlen != 4) && (iRawlen != 5)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_retcode iRetcode; - - if (iRawlen) /* determine parameters if any */ - { - pData->iSHOWfromid = mng_get_uint16 (pRawdata); - - if (iRawlen > 2) - pData->iSHOWtoid = mng_get_uint16 (pRawdata+2); - else - pData->iSHOWtoid = pData->iSHOWfromid; - - if (iRawlen > 4) - pData->iSHOWmode = *(pRawdata+4); - else - pData->iSHOWmode = 0; - } - else /* use defaults then */ - { - pData->iSHOWmode = 2; - pData->iSHOWfromid = 1; - pData->iSHOWtoid = 65535; - } - /* create a SHOW animation object */ - iRetcode = create_ani_show (pData, pData->iSHOWfromid, pData->iSHOWtoid, - pData->iSHOWmode); - - if (!iRetcode) /* go and do it! */ - iRetcode = process_display_show (pData); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_showp)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - - if (iRawlen) - { - ((mng_showp)*ppChunk)->iFirstid = mng_get_uint16 (pRawdata); - - if (iRawlen > 2) - ((mng_showp)*ppChunk)->iLastid = mng_get_uint16 (pRawdata+2); - - if (iRawlen > 4) - ((mng_showp)*ppChunk)->iMode = *(pRawdata+4); - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_SHOW, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_term) -{ - mng_uint8 iTermaction; - mng_uint8 iIteraction = 0; - mng_uint32 iDelay = 0; - mng_uint32 iItermax = 0; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_TERM, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (pData->bHasLOOP) /* no way, jose! */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (pData->bHasTERM) /* only 1 allowed! */ - MNG_ERROR (pData, MNG_MULTIPLEERROR) - /* check the length */ - if ((iRawlen != 1) && (iRawlen != 10)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - pData->bHasTERM = MNG_TRUE; - /* TODO: remove in 1.0.0 !!! */ - if ((!pData->bHasSAVE) && (pData->iChunkseq > 2)) - pData->bEMNGMAhack = MNG_TRUE; - - iTermaction = *pRawdata; /* get the fields */ - - if (iRawlen > 1) - { - iIteraction = *(pRawdata+1); - iDelay = mng_get_uint32 (pRawdata+2); - iItermax = mng_get_uint32 (pRawdata+6); - } - - if (pData->fProcessterm) /* inform the app ? */ - if (!pData->fProcessterm (((mng_handle)pData), iTermaction, iIteraction, - iDelay, iItermax)) - MNG_ERROR (pData, MNG_APPMISCERROR) - -#ifdef MNG_SUPPORT_DISPLAY - { /* create the TERM ani-object */ - mng_retcode iRetcode = create_ani_term (pData, iTermaction, iIteraction, - iDelay, iItermax); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* save for future reference */ - pData->pTermaniobj = pData->pLastaniobj; - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_termp)*ppChunk)->iTermaction = iTermaction; - ((mng_termp)*ppChunk)->iIteraction = iIteraction; - ((mng_termp)*ppChunk)->iDelay = iDelay; - ((mng_termp)*ppChunk)->iItermax = iItermax; - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_TERM, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_save) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_SAVE, MNG_LC_START) -#endif - /* sequence checks */ - if ((!pData->bHasMHDR) || (pData->bHasSAVE)) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - pData->bHasSAVE = MNG_TRUE; - - if (pData->fProcesssave) /* inform the application ? */ - { - mng_bool bOke = pData->fProcesssave ((mng_handle)pData); - - if (!bOke) - MNG_ERROR (pData, MNG_APPMISCERROR) - } - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_retcode iRetcode; - - - /* TODO: something with the parameters */ - - - /* create a SAVE animation object */ - iRetcode = create_ani_save (pData); - - if (!iRetcode) /* process it */ - iRetcode = process_display_save (pData); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_savep)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - - if (iRawlen) /* not empty ? */ - { - mng_uint8 iOtype = *pRawdata; - mng_uint8 iEtype; - mng_uint32 iCount = 0; - mng_uint8p pTemp; - mng_uint8p pNull; - mng_uint32 iLen; - mng_uint32 iOffset[2]; - mng_uint32 iStarttime[2]; - mng_uint32 iFramenr; - mng_uint32 iLayernr; - mng_uint32 iX; - mng_save_entryp pEntry = MNG_NULL; - mng_uint32 iNamesize; - - if ((iOtype != 4) && (iOtype != 8)) - MNG_ERROR (pData, MNG_INVOFFSETSIZE); - - ((mng_savep)*ppChunk)->iOffsettype = iOtype; - - for (iX = 0; iX < 2; iX++) /* do this twice to get the count first ! */ - { - pTemp = pRawdata + 1; - iLen = iRawlen - 1; - - if (iX) /* second run ? */ - { - MNG_ALLOC (pData, pEntry, (iCount * sizeof (mng_save_entry))) - - ((mng_savep)*ppChunk)->iCount = iCount; - ((mng_savep)*ppChunk)->pEntries = pEntry; - } - - while (iLen) /* anything left ? */ - { - iEtype = *pTemp; /* entrytype */ - - if ((iEtype != 0) && (iEtype != 1) && (iEtype != 2) && (iEtype != 3)) - MNG_ERROR (pData, MNG_INVENTRYTYPE); - - pTemp++; - - if (iEtype > 1) - { - iOffset [0] = 0; - iOffset [1] = 0; - iStarttime [0] = 0; - iStarttime [1] = 0; - iLayernr = 0; - iFramenr = 0; - } - else - { - if (iOtype == 4) - { - iOffset [0] = 0; - iOffset [1] = mng_get_uint32 (pTemp); - - pTemp += 4; - } - else - { - iOffset [0] = mng_get_uint32 (pTemp); - iOffset [1] = mng_get_uint32 (pTemp+4); - - pTemp += 8; - } - - if (iEtype > 0) - { - iStarttime [0] = 0; - iStarttime [1] = 0; - iLayernr = 0; - iFramenr = 0; - } - else - { - if (iOtype == 4) - { - iStarttime [0] = 0; - iStarttime [1] = mng_get_uint32 (pTemp+0); - iLayernr = mng_get_uint32 (pTemp+4); - iFramenr = mng_get_uint32 (pTemp+8); - - pTemp += 12; - } - else - { - iStarttime [0] = mng_get_uint32 (pTemp+0); - iStarttime [1] = mng_get_uint32 (pTemp+4); - iLayernr = mng_get_uint32 (pTemp+8); - iFramenr = mng_get_uint32 (pTemp+12); - - pTemp += 16; - } - } - } - - pNull = find_null (pTemp); /* get the name length */ - - if ((pNull - pRawdata) > (mng_int32)iRawlen) - { - iNamesize = iLen; /* no null found; so end of SAVE */ - iLen = 0; - } - else - { - iNamesize = pNull - pTemp; /* should be another entry */ - iLen -= iNamesize; - - if (!iLen) /* must not end with a null ! */ - MNG_ERROR (pData, MNG_ENDWITHNULL) - } - - if (!pEntry) - { - iCount++; - } - else - { - pEntry->iEntrytype = iEtype; - pEntry->iOffset [0] = iOffset [0]; - pEntry->iOffset [1] = iOffset [1]; - pEntry->iStarttime [0] = iStarttime [0]; - pEntry->iStarttime [1] = iStarttime [1]; - pEntry->iLayernr = iLayernr; - pEntry->iFramenr = iFramenr; - pEntry->iNamesize = iNamesize; - - if (iNamesize) - { - MNG_ALLOC (pData, pEntry->zName, iNamesize+1) - MNG_COPY (pEntry->zName, pTemp, iNamesize) - } - - pEntry++; - } - - pTemp += iNamesize; - } - } - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_SAVE, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_seek) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_SEEK, MNG_LC_START) -#endif - /* sequence checks */ - if ((!pData->bHasMHDR) || (!pData->bHasSAVE)) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (pData->fProcessseek) /* inform the app ? */ - { - mng_bool bOke; - mng_pchar zName; - - MNG_ALLOC (pData, zName, iRawlen + 1) - - if (iRawlen) - MNG_COPY (zName, pRawdata, iRawlen) - - bOke = pData->fProcessseek ((mng_handle)pData, zName); - - MNG_FREEX (pData, zName, iRawlen + 1) - - if (!bOke) - MNG_ERROR (pData, MNG_APPMISCERROR) - } - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_retcode iRetcode; - - - /* TODO: something with the name ??? */ - - - - /* create a SEEK animation object */ - iRetcode = create_ani_seek (pData); - - if (!iRetcode) /* process it */ - iRetcode = process_display_seek (pData); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_seekp)*ppChunk)->iNamesize = iRawlen; - - if (iRawlen) - { - MNG_ALLOC (pData, ((mng_seekp)*ppChunk)->zName, iRawlen+1) - MNG_COPY (((mng_seekp)*ppChunk)->zName, pRawdata, iRawlen) - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_SEEK, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_expi) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_EXPI, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen < 3) /* check the length */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - - - /* TODO: something !!! */ - - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_expip)*ppChunk)->iSnapshotid = mng_get_uint16 (pRawdata); - ((mng_expip)*ppChunk)->iNamesize = iRawlen - 2; - - if (((mng_expip)*ppChunk)->iNamesize) - { - MNG_ALLOC (pData, ((mng_expip)*ppChunk)->zName, - ((mng_expip)*ppChunk)->iNamesize + 1) - MNG_COPY (((mng_expip)*ppChunk)->zName, pRawdata+2, - ((mng_expip)*ppChunk)->iNamesize) - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_EXPI, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_fpri) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_FPRI, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen != 2) /* must be two bytes long */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - - - /* TODO: something !!! */ - - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_fprip)*ppChunk)->iDeltatype = *pRawdata; - ((mng_fprip)*ppChunk)->iPriority = *(pRawdata+1); - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_FPRI, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -mng_bool CheckKeyword (mng_datap pData, - mng_uint8p pKeyword) -{ - mng_chunkid handled_chunks [] = - { - MNG_UINT_BACK, - MNG_UINT_BASI, - MNG_UINT_CLIP, - MNG_UINT_CLON, -/* TODO: MNG_UINT_DBYK, */ - MNG_UINT_DEFI, - MNG_UINT_DHDR, - MNG_UINT_DISC, -/* TODO: MNG_UINT_DROP, */ - MNG_UINT_ENDL, - MNG_UINT_FRAM, - MNG_UINT_IDAT, - MNG_UINT_IEND, - MNG_UINT_IHDR, - MNG_UINT_IJNG, - MNG_UINT_IPNG, -#ifdef MNG_INCLUDE_JNG - MNG_UINT_JDAA, - MNG_UINT_JDAT, - MNG_UINT_JHDR, -/* TODO: MNG_UINT_JSEP, */ - MNG_UINT_JdAA, -#endif - MNG_UINT_LOOP, - MNG_UINT_MAGN, - MNG_UINT_MEND, - MNG_UINT_MHDR, - MNG_UINT_MOVE, -/* TODO: MNG_UINT_ORDR, */ -/* TODO: MNG_UINT_PAST, */ - MNG_UINT_PLTE, - MNG_UINT_PPLT, - MNG_UINT_PROM, - MNG_UINT_SAVE, - MNG_UINT_SEEK, - MNG_UINT_SHOW, - MNG_UINT_TERM, - MNG_UINT_bKGD, - MNG_UINT_cHRM, -/* TODO: MNG_UINT_eXPI, */ -/* TODO: MNG_UINT_fPRI, */ - MNG_UINT_gAMA, -/* TODO: MNG_UINT_hIST, */ - MNG_UINT_iCCP, - MNG_UINT_iTXt, - MNG_UINT_nEED, -/* TODO: MNG_UINT_oFFs, */ -/* TODO: MNG_UINT_pCAL, */ -/* TODO: MNG_UINT_pHYg, */ -/* TODO: MNG_UINT_pHYs, */ -/* TODO: MNG_UINT_sBIT, */ -/* TODO: MNG_UINT_sCAL, */ -/* TODO: MNG_UINT_sPLT, */ - MNG_UINT_sRGB, - MNG_UINT_tEXt, - MNG_UINT_tIME, - MNG_UINT_tRNS, - MNG_UINT_zTXt, - }; - - mng_bool bOke = MNG_FALSE; - - if (pData->fProcessneed) /* does the app handle it ? */ - bOke = pData->fProcessneed ((mng_handle)pData, (mng_pchar)pKeyword); - - if (!bOke) - { /* find the keyword length */ - mng_uint8p pNull = find_null (pKeyword); - - if (pNull - pKeyword == 4) /* test a chunk ? */ - { /* get the chunk-id */ - mng_chunkid iChunkid = (*pKeyword << 24) + (*(pKeyword+1) << 16) + - (*(pKeyword+2) << 8) + (*(pKeyword+3) ); - /* binary search variables */ - mng_int32 iTop, iLower, iUpper, iMiddle; - /* determine max index of table */ - iTop = (sizeof (handled_chunks) / sizeof (handled_chunks [0])) - 1; - - /* binary search; with 52 chunks, worst-case is 7 comparisons */ - iLower = 0; - iMiddle = iTop >> 1; - iUpper = iTop; - - do /* the binary search itself */ - { - if (handled_chunks [iMiddle] < iChunkid) - iLower = iMiddle + 1; - else if (handled_chunks [iMiddle] > iChunkid) - iUpper = iMiddle - 1; - else - { - bOke = MNG_TRUE; - break; - } - - iMiddle = (iLower + iUpper) >> 1; - } - while (iLower <= iUpper); - } - /* test draft ? */ - if ((!bOke) && (pNull - pKeyword == 8) && - (*pKeyword == 'd') && (*(pKeyword+1) == 'r') && - (*(pKeyword+2) == 'a') && (*(pKeyword+3) == 'f') && - (*(pKeyword+4) == 't') && (*(pKeyword+5) == ' ')) - { - mng_uint32 iDraft; - - iDraft = (*(pKeyword+6) - '0') * 10 + (*(pKeyword+7) - '0'); - bOke = (mng_bool)(iDraft <= MNG_MNG_DRAFT); - } - /* test MNG 1.0 ? */ - if ((!bOke) && (pNull - pKeyword == 7) && - (*pKeyword == 'M') && (*(pKeyword+1) == 'N') && - (*(pKeyword+2) == 'G') && (*(pKeyword+3) == '-') && - (*(pKeyword+4) == '1') && (*(pKeyword+5) == '.') && - (*(pKeyword+6) == '0')) - bOke = MNG_TRUE; - - } - - return bOke; -} - -/* ************************************************************************** */ - -READ_CHUNK (read_need) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_NEED, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen < 1) /* check the length */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - { /* let's check it */ - mng_bool bOke = MNG_TRUE; - mng_pchar zKeywords; - mng_uint8p pNull, pTemp; - - MNG_ALLOC (pData, zKeywords, iRawlen + 1) - - if (iRawlen) - MNG_COPY (zKeywords, pRawdata, iRawlen) - - pTemp = (mng_uint8p)zKeywords; - pNull = find_null (pTemp); - - while ((bOke) && (pNull < (mng_uint8p)zKeywords + iRawlen)) - { - bOke = CheckKeyword (pData, pTemp); - pTemp = pNull + 1; - pNull = find_null (pTemp); - } - - if (bOke) - bOke = CheckKeyword (pData, pTemp); - - MNG_FREEX (pData, zKeywords, iRawlen + 1) - - if (!bOke) - MNG_ERROR (pData, MNG_UNSUPPORTEDNEED) - } - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_needp)*ppChunk)->iKeywordssize = iRawlen; - - if (iRawlen) - { - MNG_ALLOC (pData, ((mng_needp)*ppChunk)->zKeywords, iRawlen+1) - MNG_COPY (((mng_needp)*ppChunk)->zKeywords, pRawdata, iRawlen) - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_NEED, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_phyg) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_PHYG, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* it's 9 bytes or empty; no more, no less! */ - if ((iRawlen != 9) && (iRawlen != 0)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - - - /* TODO: something !!! */ - - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_phygp)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - - if (iRawlen) - { - ((mng_phygp)*ppChunk)->iSizex = mng_get_uint32 (pRawdata); - ((mng_phygp)*ppChunk)->iSizey = mng_get_uint32 (pRawdata+4); - ((mng_phygp)*ppChunk)->iUnit = *(pRawdata+8); - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_PHYG, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -#ifdef MNG_INCLUDE_JNG -READ_CHUNK (read_jhdr) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_JHDR, MNG_LC_START) -#endif - /* sequence checks */ - if ((pData->eSigtype != mng_it_jng) && (pData->eSigtype != mng_it_mng)) - MNG_ERROR (pData, MNG_CHUNKNOTALLOWED) - - if ((pData->eSigtype == mng_it_jng) && (pData->iChunkseq > 1)) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen != 16) /* length oke ? */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - /* inside a JHDR-IEND block now */ - pData->bHasJHDR = MNG_TRUE; - /* and store interesting fields */ - pData->iDatawidth = mng_get_uint32 (pRawdata); - pData->iDataheight = mng_get_uint32 (pRawdata+4); - pData->iJHDRcolortype = *(pRawdata+8); - pData->iJHDRimgbitdepth = *(pRawdata+9); - pData->iJHDRimgcompression = *(pRawdata+10); - pData->iJHDRimginterlace = *(pRawdata+11); - pData->iJHDRalphabitdepth = *(pRawdata+12); - pData->iJHDRalphacompression = *(pRawdata+13); - pData->iJHDRalphafilter = *(pRawdata+14); - pData->iJHDRalphainterlace = *(pRawdata+15); - /* parameter validity checks */ - if ((pData->iJHDRcolortype != MNG_COLORTYPE_JPEGGRAY ) && - (pData->iJHDRcolortype != MNG_COLORTYPE_JPEGCOLOR ) && - (pData->iJHDRcolortype != MNG_COLORTYPE_JPEGGRAYA ) && - (pData->iJHDRcolortype != MNG_COLORTYPE_JPEGCOLORA) ) - MNG_ERROR (pData, MNG_INVALIDCOLORTYPE) - - if ((pData->iJHDRimgbitdepth != 8) && - (pData->iJHDRimgbitdepth != 12) && - (pData->iJHDRimgbitdepth != 20) ) - MNG_ERROR (pData, MNG_INVALIDBITDEPTH) - - if (pData->iJHDRimgcompression != MNG_COMPRESSION_BASELINEJPEG) - MNG_ERROR (pData, MNG_INVALIDCOMPRESS) - - if ((pData->iJHDRimginterlace != MNG_INTERLACE_SETQUENTIAL ) && - (pData->iJHDRimginterlace != MNG_INTERLACE_PROGRESSIVE) ) - MNG_ERROR (pData, MNG_INVALIDINTERLACE) - - if ((pData->iJHDRcolortype == MNG_COLORTYPE_JPEGGRAYA ) || - (pData->iJHDRcolortype == MNG_COLORTYPE_JPEGCOLORA) ) - { - if ((pData->iJHDRalphabitdepth != 1) && - (pData->iJHDRalphabitdepth != 2) && - (pData->iJHDRalphabitdepth != 4) && - (pData->iJHDRalphabitdepth != 8) && - (pData->iJHDRalphabitdepth != 16) ) - MNG_ERROR (pData, MNG_INVALIDBITDEPTH) - - if ((pData->iJHDRalphacompression != MNG_COMPRESSION_DEFLATE ) && - (pData->iJHDRalphacompression != MNG_COMPRESSION_BASELINEJPEG) ) - MNG_ERROR (pData, MNG_INVALIDCOMPRESS) - - if ((pData->iJHDRalphacompression == MNG_COMPRESSION_BASELINEJPEG) && - (pData->iJHDRalphabitdepth != 8 ) ) - MNG_ERROR (pData, MNG_INVALIDBITDEPTH) - - if (pData->iJHDRalphafilter & (~MNG_FILTER_DIFFERING)) - MNG_ERROR (pData, MNG_INVALIDFILTER) - - if ((pData->iJHDRalphainterlace != MNG_INTERLACE_NONE ) && - (pData->iJHDRalphainterlace != MNG_INTERLACE_ADAM7) ) - MNG_ERROR (pData, MNG_INVALIDINTERLACE) - - } - else - { - if (pData->iJHDRalphabitdepth != 0) - MNG_ERROR (pData, MNG_INVALIDBITDEPTH) - - if (pData->iJHDRalphacompression != 0) - MNG_ERROR (pData, MNG_INVALIDCOMPRESS) - - if (pData->iJHDRalphafilter != 0) - MNG_ERROR (pData, MNG_INVALIDFILTER) - - if (pData->iJHDRalphainterlace != 0) - MNG_ERROR (pData, MNG_INVALIDINTERLACE) - - } - - if (!pData->bHasheader) /* first chunk ? */ - { - pData->bHasheader = MNG_TRUE; /* we've got a header */ - pData->eImagetype = mng_it_jng; /* then this must be a JNG */ - pData->iWidth = mng_get_uint32 (pRawdata); - pData->iHeight = mng_get_uint32 (pRawdata+4); - /* predict alpha-depth ! */ - if ((pData->iJHDRcolortype == MNG_COLORTYPE_JPEGGRAYA ) || - (pData->iJHDRcolortype == MNG_COLORTYPE_JPEGCOLORA) ) - pData->iAlphadepth = pData->iJHDRalphabitdepth; - else - pData->iAlphadepth = 0; - /* fits on maximum canvas ? */ - if ((pData->iWidth > pData->iMaxwidth) || (pData->iHeight > pData->iMaxheight)) - MNG_WARNING (pData, MNG_IMAGETOOLARGE) - - if (pData->fProcessheader) /* inform the app ? */ - if (!pData->fProcessheader (((mng_handle)pData), pData->iWidth, pData->iHeight)) - MNG_ERROR (pData, MNG_APPMISCERROR) - - } - - pData->iColortype = 0; /* fake grayscale for other routines */ - pData->iImagelevel++; /* one level deeper */ - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_retcode iRetcode = process_display_jhdr (pData); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_jhdrp)*ppChunk)->iWidth = mng_get_uint32 (pRawdata); - ((mng_jhdrp)*ppChunk)->iHeight = mng_get_uint32 (pRawdata+4); - ((mng_jhdrp)*ppChunk)->iColortype = *(pRawdata+8); - ((mng_jhdrp)*ppChunk)->iImagesampledepth = *(pRawdata+9); - ((mng_jhdrp)*ppChunk)->iImagecompression = *(pRawdata+10); - ((mng_jhdrp)*ppChunk)->iImageinterlace = *(pRawdata+11); - ((mng_jhdrp)*ppChunk)->iAlphasampledepth = *(pRawdata+12); - ((mng_jhdrp)*ppChunk)->iAlphacompression = *(pRawdata+13); - ((mng_jhdrp)*ppChunk)->iAlphafilter = *(pRawdata+14); - ((mng_jhdrp)*ppChunk)->iAlphainterlace = *(pRawdata+15); - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_JHDR, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} -#else -#define read_jhdr 0 -#endif /* MNG_INCLUDE_JNG */ - -/* ************************************************************************** */ - -#ifdef MNG_INCLUDE_JNG -READ_CHUNK (read_jdaa) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_JDAA, MNG_LC_START) -#endif - /* sequence checks */ - if ((!pData->bHasJHDR) && (!pData->bHasDHDR)) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (pData->bHasJSEP) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (pData->iJHDRalphacompression != MNG_COMPRESSION_BASELINEJPEG) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen == 0) /* can never be empty */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - pData->bHasJDAA = MNG_TRUE; /* got some JDAA now, don't we */ - -#ifdef MNG_SUPPORT_DISPLAY - if (iRawlen) - { /* display processing for non-empty chunks */ - mng_retcode iRetcode = process_display_jdaa (pData, iRawlen, pRawdata); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_jdaap)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - ((mng_jdaap)*ppChunk)->iDatasize = iRawlen; - - if (iRawlen != 0) /* is there any data ? */ - { - MNG_ALLOC (pData, ((mng_jdaap)*ppChunk)->pData, iRawlen) - MNG_COPY (((mng_jdaap)*ppChunk)->pData, pRawdata, iRawlen) - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_JDAA, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} -#else -#define read_jdaa 0 -#endif /* MNG_INCLUDE_JNG */ - -/* ************************************************************************** */ - -#ifdef MNG_INCLUDE_JNG -READ_CHUNK (read_jdat) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_JDAT, MNG_LC_START) -#endif - /* sequence checks */ - if ((!pData->bHasJHDR) && (!pData->bHasDHDR)) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen == 0) /* can never be empty */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - pData->bHasJDAT = MNG_TRUE; /* got some JDAT now, don't we */ - -#ifdef MNG_SUPPORT_DISPLAY - if (iRawlen) - { /* display processing for non-empty chunks */ - mng_retcode iRetcode = process_display_jdat (pData, iRawlen, pRawdata); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_jdatp)*ppChunk)->bEmpty = (mng_bool)(iRawlen == 0); - ((mng_jdatp)*ppChunk)->iDatasize = iRawlen; - - if (iRawlen != 0) /* is there any data ? */ - { - MNG_ALLOC (pData, ((mng_jdatp)*ppChunk)->pData, iRawlen) - MNG_COPY (((mng_jdatp)*ppChunk)->pData, pRawdata, iRawlen) - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_JDAT, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} -#else -#define read_jdat 0 -#endif /* MNG_INCLUDE_JNG */ - -/* ************************************************************************** */ - -#ifdef MNG_INCLUDE_JNG -READ_CHUNK (read_jsep) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_JSEP, MNG_LC_START) -#endif - - if (!pData->bHasJHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen != 0) /* must be empty ! */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - pData->bHasJSEP = MNG_TRUE; /* indicate we've had the 8-/12-bit separator */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_JSEP, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} -#else -#define read_jsep 0 -#endif /* MNG_INCLUDE_JNG */ - -/* ************************************************************************** */ - -READ_CHUNK (read_dhdr) -{ - mng_uint8 iImagetype, iDeltatype; -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_DHDR, MNG_LC_START) -#endif - - if (!pData->bHasMHDR) /* sequence checks */ - MNG_ERROR (pData, MNG_SETQUENCEERROR) - -#ifdef MNG_INCLUDE_JNG - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* check for valid length */ - if ((iRawlen != 4) && (iRawlen != 12) && (iRawlen != 20)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - iImagetype = *(pRawdata+2); /* check fields for validity */ - iDeltatype = *(pRawdata+3); - - if (iImagetype > MNG_IMAGETYPE_JNG) - MNG_ERROR (pData, MNG_INVIMAGETYPE) - - if (iDeltatype > MNG_DELTATYPE_NOCHANGE) - MNG_ERROR (pData, MNG_INVDELTATYPE) - - if ((iDeltatype == MNG_DELTATYPE_REPLACE) && (iRawlen > 12)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - if ((iDeltatype == MNG_DELTATYPE_NOCHANGE) && (iRawlen > 4)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - pData->bHasDHDR = MNG_TRUE; /* inside a DHDR-IEND block now */ - - pData->iImagelevel++; /* one level deeper */ - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_uint16 iObjectid = mng_get_uint16 (pRawdata); - mng_uint32 iBlockwidth = 0; - mng_uint32 iBlockheight = 0; - mng_uint32 iBlockx = 0; - mng_uint32 iBlocky = 0; - mng_retcode iRetcode; - - if (iRawlen > 4) - { - iBlockwidth = mng_get_uint32 (pRawdata+4); - iBlockheight = mng_get_uint32 (pRawdata+8); - } - - if (iRawlen > 12) - { - iBlockx = mng_get_uint32 (pRawdata+12); - iBlocky = mng_get_uint32 (pRawdata+16); - } - - iRetcode = create_ani_dhdr (pData, iObjectid, iImagetype, iDeltatype, - iBlockwidth, iBlockheight, iBlockx, iBlocky); - - if (!iRetcode) /* display processing ? */ - iRetcode = process_display_dhdr (pData, iObjectid, iImagetype, iDeltatype, - iBlockwidth, iBlockheight, iBlockx, iBlocky); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_dhdrp)*ppChunk)->iObjectid = mng_get_uint16 (pRawdata); - ((mng_dhdrp)*ppChunk)->iImagetype = iImagetype; - ((mng_dhdrp)*ppChunk)->iDeltatype = iDeltatype; - - if (iRawlen > 4) - { - ((mng_dhdrp)*ppChunk)->iBlockwidth = mng_get_uint32 (pRawdata+4); - ((mng_dhdrp)*ppChunk)->iBlockheight = mng_get_uint32 (pRawdata+8); - } - - if (iRawlen > 12) - { - ((mng_dhdrp)*ppChunk)->iBlockx = mng_get_uint32 (pRawdata+12); - ((mng_dhdrp)*ppChunk)->iBlocky = mng_get_uint32 (pRawdata+16); - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_DHDR, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_prom) -{ - mng_uint8 iColortype; - mng_uint8 iSampledepth; - mng_uint8 iFilltype; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_PROM, MNG_LC_START) -#endif - /* sequence checks */ - if ((!pData->bHasMHDR) || (!pData->bHasDHDR)) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen != 3) /* gotta be exactly 3 bytes */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - iColortype = *pRawdata; /* check fields for validity */ - iSampledepth = *(pRawdata+1); - iFilltype = *(pRawdata+2); - - if ((iColortype != MNG_COLORTYPE_GRAY ) && - (iColortype != MNG_COLORTYPE_RGB ) && - (iColortype != MNG_COLORTYPE_INDEXED) && - (iColortype != MNG_COLORTYPE_GRAYA ) && - (iColortype != MNG_COLORTYPE_RGBA ) ) - MNG_ERROR (pData, MNG_INVALIDCOLORTYPE) - - if ((iSampledepth != MNG_BITDEPTH_1 ) && - (iSampledepth != MNG_BITDEPTH_2 ) && - (iSampledepth != MNG_BITDEPTH_4 ) && - (iSampledepth != MNG_BITDEPTH_8 ) && - (iSampledepth != MNG_BITDEPTH_16) ) - MNG_ERROR (pData, MNG_INVSAMPLEDEPTH) - - if ((iFilltype != MNG_FILLMETHOD_LEFTBITREPLICATE) && - (iFilltype != MNG_FILLMETHOD_ZEROFILL ) ) - MNG_ERROR (pData, MNG_INVFILLMETHOD) - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_retcode iRetcode = create_ani_prom (pData, iSampledepth, iColortype, iFilltype); - - if (!iRetcode) /* display processing ? */ - iRetcode = process_display_prom (pData, iSampledepth, - iColortype, iFilltype); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_promp)*ppChunk)->iColortype = iColortype; - ((mng_promp)*ppChunk)->iSampledepth = iSampledepth; - ((mng_promp)*ppChunk)->iFilltype = iFilltype; - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_PROM, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_ipng) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_IPNG, MNG_LC_START) -#endif - /* sequence checks */ - if ((!pData->bHasMHDR) || (!pData->bHasDHDR)) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen != 0) /* gotta be empty */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_retcode iRetcode = create_ani_ipng (pData); - - if (!iRetcode) /* process it */ - iRetcode = process_display_ipng (pData); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_IPNG, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_pplt) -{ - mng_uint8 iDeltatype; - mng_uint8p pTemp; - mng_uint32 iLen; - mng_uint8 iX, iM; - mng_uint32 iY; - mng_uint32 iMax; - mng_rgbpaltab aIndexentries; - mng_uint8arr aAlphaentries; - mng_uint8arr aUsedentries; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_PPLT, MNG_LC_START) -#endif - /* sequence checks */ - if ((!pData->bHasMHDR) && (!pData->bHasDHDR)) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen < 1) /* must have at least 1 byte */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - iDeltatype = *pRawdata; - /* valid ? */ - if (iDeltatype > MNG_DELTATYPE_DELTARGBA) - MNG_ERROR (pData, MNG_INVDELTATYPE) - /* must be indexed color ! */ - if (pData->iColortype != MNG_COLORTYPE_INDEXED) - MNG_ERROR (pData, MNG_INVALIDCOLORTYPE) - - pTemp = pRawdata + 1; - iLen = iRawlen - 1; - iMax = 0; - - for (iY = 0; iY < 256; iY++) /* reset arrays */ - { - aIndexentries [iY].iRed = 0; - aIndexentries [iY].iGreen = 0; - aIndexentries [iY].iBlue = 0; - aAlphaentries [iY] = 255; - aUsedentries [iY] = 0; - } - - while (iLen) /* as long as there are entries left ... */ - { - mng_uint32 iDiff; - - if (iLen < 2) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - iX = *pTemp; /* get start and end index */ - iM = *(pTemp+1); - - if (iM < iX) - MNG_ERROR (pData, MNG_INVALIDINDEX) - - if ((mng_uint32)iM >= iMax) /* determine highest used index */ - iMax = (mng_uint32)iM + 1; - - pTemp += 2; - iLen -= 2; - - if ((iDeltatype == MNG_DELTATYPE_REPLACERGB ) || - (iDeltatype == MNG_DELTATYPE_DELTARGB ) ) - iDiff = (iM - iX + 1) * 3; - else - if ((iDeltatype == MNG_DELTATYPE_REPLACEALPHA) || - (iDeltatype == MNG_DELTATYPE_DELTAALPHA ) ) - iDiff = (iM - iX + 1); - else - iDiff = (iM - iX + 1) * 4; - - if (iLen < iDiff) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - if ((iDeltatype == MNG_DELTATYPE_REPLACERGB ) || - (iDeltatype == MNG_DELTATYPE_DELTARGB ) ) - { - for (iY = (mng_uint32)iX; iY <= (mng_uint32)iM; iY++) - { - aIndexentries [iY].iRed = *pTemp; - aIndexentries [iY].iGreen = *(pTemp+1); - aIndexentries [iY].iBlue = *(pTemp+2); - aUsedentries [iY] = 1; - - pTemp += 3; - iLen -= 3; - } - } - else - if ((iDeltatype == MNG_DELTATYPE_REPLACEALPHA) || - (iDeltatype == MNG_DELTATYPE_DELTAALPHA ) ) - { - for (iY = (mng_uint32)iX; iY <= (mng_uint32)iM; iY++) - { - aAlphaentries [iY] = *pTemp; - aUsedentries [iY] = 1; - - pTemp++; - iLen--; - } - } - else - { - for (iY = (mng_uint32)iX; iY <= (mng_uint32)iM; iY++) - { - aIndexentries [iY].iRed = *pTemp; - aIndexentries [iY].iGreen = *(pTemp+1); - aIndexentries [iY].iBlue = *(pTemp+2); - aAlphaentries [iY] = *(pTemp+3); - aUsedentries [iY] = 1; - - pTemp += 4; - iLen -= 4; - } - } - } - - switch (pData->iBitdepth) /* check maximum allowed entries for bitdepth */ - { - case MNG_BITDEPTH_1 : { - if (iMax > 2) - MNG_ERROR (pData, MNG_INVALIDINDEX) - break; - } - case MNG_BITDEPTH_2 : { - if (iMax > 4) - MNG_ERROR (pData, MNG_INVALIDINDEX) - break; - } - case MNG_BITDEPTH_4 : { - if (iMax > 16) - MNG_ERROR (pData, MNG_INVALIDINDEX) - break; - } - } - -#ifdef MNG_SUPPORT_DISPLAY - { /* create animation object */ - mng_retcode iRetcode = create_ani_pplt (pData, iDeltatype, iMax, - aIndexentries, aAlphaentries, - aUsedentries); - - if (!iRetcode) /* execute it now ? */ - iRetcode = process_display_pplt (pData, iDeltatype, iMax, aIndexentries, - aAlphaentries, aUsedentries); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_ppltp)*ppChunk)->iDeltatype = iDeltatype; - ((mng_ppltp)*ppChunk)->iCount = iMax; - - for (iY = 0; iY < 256; iY++) - { - ((mng_ppltp)*ppChunk)->aEntries [iY].iRed = aIndexentries [iY].iRed; - ((mng_ppltp)*ppChunk)->aEntries [iY].iGreen = aIndexentries [iY].iGreen; - ((mng_ppltp)*ppChunk)->aEntries [iY].iBlue = aIndexentries [iY].iBlue; - ((mng_ppltp)*ppChunk)->aEntries [iY].iAlpha = aAlphaentries [iY]; - ((mng_ppltp)*ppChunk)->aEntries [iY].bUsed = (mng_bool)(aUsedentries [iY]); - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_PPLT, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_ijng) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_IJNG, MNG_LC_START) -#endif - /* sequence checks */ - if ((!pData->bHasMHDR) || (!pData->bHasDHDR)) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen != 0) /* gotta be empty */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_retcode iRetcode = create_ani_ijng (pData); - - if (!iRetcode) /* process it */ - iRetcode = process_display_ijng (pData); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_IJNG, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_drop) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_DROP, MNG_LC_START) -#endif - /* sequence checks */ - if ((!pData->bHasMHDR) || (!pData->bHasDHDR)) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* check length */ - if ((iRawlen < 4) || ((iRawlen % 4) != 0)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - - - /* TODO: something !!! */ - - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_dropp)*ppChunk)->iCount = iRawlen / 4; - - if (iRawlen) - { - mng_uint32 iX; - mng_uint8p pTemp = pRawdata; - mng_uint32p pEntry; - - MNG_ALLOC (pData, pEntry, iRawlen) - - ((mng_dropp)*ppChunk)->pChunknames = (mng_ptr)pEntry; - - for (iX = 0; iX < iRawlen / 4; iX++) - { - *pEntry = mng_get_uint32 (pTemp); - - pTemp += 4; - pEntry++; - } - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_DROP, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_dbyk) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_DBYK, MNG_LC_START) -#endif - /* sequence checks */ - if ((!pData->bHasMHDR) || (!pData->bHasDHDR)) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - - if (iRawlen < 6) /* must be at least 6 long */ - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - - - /* TODO: something !!! */ - - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_dbykp)*ppChunk)->iChunkname = mng_get_uint32 (pRawdata); - ((mng_dbykp)*ppChunk)->iPolarity = *(pRawdata+4); - ((mng_dbykp)*ppChunk)->iKeywordssize = iRawlen - 5; - - if (iRawlen > 5) - { - MNG_ALLOC (pData, ((mng_dbykp)*ppChunk)->zKeywords, iRawlen-4) - MNG_COPY (((mng_dbykp)*ppChunk)->zKeywords, pRawdata+5, iRawlen-5) - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_DBYK, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_ordr) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_ORDR, MNG_LC_START) -#endif - /* sequence checks */ - if ((!pData->bHasMHDR) || (!pData->bHasDHDR)) - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* check length */ - if ((iRawlen < 5) || ((iRawlen % 5) != 0)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - -#ifdef MNG_SUPPORT_DISPLAY - { - - - /* TODO: something !!! */ - - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_ordrp)*ppChunk)->iCount = iRawlen / 5; - - if (iRawlen) - { - mng_uint32 iX; - mng_ordr_entryp pEntry; - mng_uint8p pTemp = pRawdata; - - MNG_ALLOC (pData, pEntry, iRawlen) - - ((mng_ordrp)*ppChunk)->pEntries = pEntry; - - for (iX = 0; iX < iRawlen / 5; iX++) - { - pEntry->iChunkname = mng_get_uint32 (pTemp); - pEntry->iOrdertype = *(pTemp+4); - - pTemp += 5; - pEntry++; - } - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_ORDR, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_magn) -{ - mng_uint16 iFirstid, iLastid; - mng_uint16 iMethodX, iMethodY; - mng_uint16 iMX, iMY, iML, iMR, iMT, iMB; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_MAGN, MNG_LC_START) -#endif - /* sequence checks */ -#ifdef MNG_SUPPORT_JNG - if ((!pData->bHasMHDR) || (pData->bHasIHDR) || (pData->bHasDHDR) || (pData->bHasJHDR)) -#else - if ((!pData->bHasMHDR) || (pData->bHasIHDR) || (pData->bHasDHDR)) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* check length */ - if ((iRawlen > 20) || ((iRawlen & 0x01) != 0)) - MNG_ERROR (pData, MNG_INVALIDLENGTH) - - if (iRawlen > 0) /* get the fields */ - iFirstid = mng_get_uint16 (pRawdata); - else - iFirstid = 0; - - if (iRawlen > 2) - iLastid = mng_get_uint16 (pRawdata+2); - else - iLastid = iFirstid; - - if (iRawlen > 4) - iMethodX = mng_get_uint16 (pRawdata+4); - else - iMethodX = 0; - - if (iRawlen > 6) - iMX = mng_get_uint16 (pRawdata+6); - else - iMX = 1; - - if (iRawlen > 8) - iMY = mng_get_uint16 (pRawdata+8); - else - iMY = iMX; - - if (iRawlen > 10) - iML = mng_get_uint16 (pRawdata+10); - else - iML = iMX; - - if (iRawlen > 12) - iMR = mng_get_uint16 (pRawdata+12); - else - iMR = iMX; - - if (iRawlen > 14) - iMT = mng_get_uint16 (pRawdata+14); - else - iMT = iMY; - - if (iRawlen > 16) - iMB = mng_get_uint16 (pRawdata+16); - else - iMB = iMY; - - if (iRawlen > 18) - iMethodY = mng_get_uint16 (pRawdata+18); - else - iMethodY = iMethodX; - /* check field validity */ - if ((iMethodX > 5) || (iMethodY > 5)) - MNG_ERROR (pData, MNG_INVALIDMETHOD) - -#ifdef MNG_SUPPORT_DISPLAY - { - mng_retcode iRetcode; - - iRetcode = create_ani_magn (pData, iFirstid, iLastid, iMethodX, - iMX, iMY, iML, iMR, iMT, iMB, iMethodY); - - if (!iRetcode) /* display processing ? */ - iRetcode = process_display_magn (pData, iFirstid, iLastid, iMethodX, - iMX, iMY, iML, iMR, iMT, iMB, iMethodY); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - } -#endif /* MNG_SUPPORT_DISPLAY */ - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the fields */ - ((mng_magnp)*ppChunk)->iFirstid = iFirstid; - ((mng_magnp)*ppChunk)->iLastid = iLastid; - ((mng_magnp)*ppChunk)->iMethodX = iMethodX; - ((mng_magnp)*ppChunk)->iMX = iMX; - ((mng_magnp)*ppChunk)->iMY = iMY; - ((mng_magnp)*ppChunk)->iML = iML; - ((mng_magnp)*ppChunk)->iMR = iMR; - ((mng_magnp)*ppChunk)->iMT = iMT; - ((mng_magnp)*ppChunk)->iMB = iMB; - ((mng_magnp)*ppChunk)->iMethodY = iMethodY; - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_MAGN, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -READ_CHUNK (read_unknown) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_UNKNOWN, MNG_LC_START) -#endif - /* sequence checks */ -#ifdef MNG_INCLUDE_JNG - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) && (!pData->bHasJHDR)) -#else - if ((!pData->bHasMHDR) && (!pData->bHasIHDR) && - (!pData->bHasBASI) && (!pData->bHasDHDR) ) -#endif - MNG_ERROR (pData, MNG_SETQUENCEERROR) - /* critical chunk ? */ - if (((mng_uint32)pData->iChunkname & 0x20000000) == 0) - MNG_ERROR (pData, MNG_UNKNOWNCRITICAL) - - if (pData->fProcessunknown) /* let the app handle it ? */ - { - mng_bool bOke = pData->fProcessunknown ((mng_handle)pData, pData->iChunkname, - iRawlen, (mng_ptr)pRawdata); - - if (!bOke) - MNG_ERROR (pData, MNG_APPMISCERROR) - } - -#ifdef MNG_STORE_CHUNKS - if (pData->bStorechunks) - { /* initialize storage */ - mng_retcode iRetcode = ((mng_chunk_headerp)pHeader)->fCreate (pData, pHeader, ppChunk); - - if (iRetcode) /* on error bail out */ - return iRetcode; - /* store the length */ - ((mng_chunk_headerp)*ppChunk)->iChunkname = pData->iChunkname; - ((mng_unknown_chunkp)*ppChunk)->iDatasize = iRawlen; - - if (iRawlen == 0) /* any data at all ? */ - ((mng_unknown_chunkp)*ppChunk)->pData = 0; - else - { /* then store it */ - MNG_ALLOC (pData, ((mng_unknown_chunkp)*ppChunk)->pData, iRawlen) - MNG_COPY (((mng_unknown_chunkp)*ppChunk)->pData, pRawdata, iRawlen) - } - } -#endif /* MNG_STORE_CHUNKS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_READ_UNKNOWN, MNG_LC_END) -#endif - - return MNG_NOERROR; /* done */ -} - -/* ************************************************************************** */ - -#endif /* MNG_INCLUDE_READ_PROCS */ - -/* ************************************************************************** */ -/* * * */ -/* * chunk write functions * */ -/* * * */ -/* ************************************************************************** */ - -#ifdef MNG_INCLUDE_WRITE_PROCS - -/* ************************************************************************** */ - -WRITE_CHUNK (write_ihdr) -{ - mng_ihdrp pIHDR; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_IHDR, MNG_LC_START) -#endif - - pIHDR = (mng_ihdrp)pChunk; /* address the proper chunk */ - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 13; - /* fill the output buffer */ - mng_put_uint32 (pRawdata, pIHDR->iWidth); - mng_put_uint32 (pRawdata+4, pIHDR->iHeight); - - *(pRawdata+8) = pIHDR->iBitdepth; - *(pRawdata+9) = pIHDR->iColortype; - *(pRawdata+10) = pIHDR->iCompression; - *(pRawdata+11) = pIHDR->iFilter; - *(pRawdata+12) = pIHDR->iInterlace; - /* and write it */ - iRetcode = write_raw_chunk (pData, pIHDR->sHeader.iChunkname, iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_IHDR, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_plte) -{ - mng_pltep pPLTE; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_uint8p pTemp; - mng_uint32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_PLTE, MNG_LC_START) -#endif - - pPLTE = (mng_pltep)pChunk; /* address the proper chunk */ - - if (pPLTE->bEmpty) /* write empty chunk ? */ - iRetcode = write_raw_chunk (pData, pPLTE->sHeader.iChunkname, 0, 0); - else - { - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = pPLTE->iEntrycount * 3; - /* fill the output buffer */ - pTemp = pRawdata; - - for (iX = 0; iX < pPLTE->iEntrycount; iX++) - { - *pTemp = pPLTE->aEntries [iX].iRed; - *(pTemp+1) = pPLTE->aEntries [iX].iGreen; - *(pTemp+2) = pPLTE->aEntries [iX].iBlue; - - pTemp += 3; - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pPLTE->sHeader.iChunkname, iRawlen, pRawdata); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_PLTE, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_idat) -{ - mng_idatp pIDAT; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_IDAT, MNG_LC_START) -#endif - - pIDAT = (mng_idatp)pChunk; /* address the proper chunk */ - - if (pIDAT->bEmpty) /* and write it */ - iRetcode = write_raw_chunk (pData, pIDAT->sHeader.iChunkname, 0, 0); - else - iRetcode = write_raw_chunk (pData, pIDAT->sHeader.iChunkname, - pIDAT->iDatasize, pIDAT->pData); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_IDAT, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_iend) -{ - mng_iendp pIEND; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_IEND, MNG_LC_START) -#endif - - pIEND = (mng_iendp)pChunk; /* address the proper chunk */ - /* and write it */ - iRetcode = write_raw_chunk (pData, pIEND->sHeader.iChunkname, 0, 0); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_IEND, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_trns) -{ - mng_trnsp pTRNS; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_uint8p pTemp; - mng_uint32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_TRNS, MNG_LC_START) -#endif - - pTRNS = (mng_trnsp)pChunk; /* address the proper chunk */ - - if (pTRNS->bEmpty) /* write empty chunk ? */ - iRetcode = write_raw_chunk (pData, pTRNS->sHeader.iChunkname, 0, 0); - else - if (pTRNS->bGlobal) /* write global chunk ? */ - iRetcode = write_raw_chunk (pData, pTRNS->sHeader.iChunkname, - pTRNS->iRawlen, (mng_uint8p)pTRNS->aRawdata); - else - { - pRawdata = pData->pWritebuf+8; /* init output buffer */ - iRawlen = 0; /* and default size */ - - switch (pTRNS->iType) - { - case 0: { - iRawlen = 2; /* fill the size & output buffer */ - mng_put_uint16 (pRawdata, pTRNS->iGray); - - break; - } - case 2: { - iRawlen = 6; /* fill the size & output buffer */ - mng_put_uint16 (pRawdata, pTRNS->iRed); - mng_put_uint16 (pRawdata+2, pTRNS->iGreen); - mng_put_uint16 (pRawdata+4, pTRNS->iBlue); - - break; - } - case 3: { /* init output buffer size */ - iRawlen = pTRNS->iCount; - - pTemp = pRawdata; /* fill the output buffer */ - - for (iX = 0; iX < pTRNS->iCount; iX++) - { - *pTemp = pTRNS->aEntries[iX]; - pTemp++; - } - - break; - } - } - /* write the chunk */ - iRetcode = write_raw_chunk (pData, pTRNS->sHeader.iChunkname, - iRawlen, pRawdata); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_TRNS, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_gama) -{ - mng_gamap pGAMA; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_GAMA, MNG_LC_START) -#endif - - pGAMA = (mng_gamap)pChunk; /* address the proper chunk */ - - if (pGAMA->bEmpty) /* write empty ? */ - iRetcode = write_raw_chunk (pData, pGAMA->sHeader.iChunkname, 0, 0); - else - { - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 4; - /* fill the buffer */ - mng_put_uint32 (pRawdata, pGAMA->iGamma); - /* and write it */ - iRetcode = write_raw_chunk (pData, pGAMA->sHeader.iChunkname, - iRawlen, pRawdata); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_GAMA, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_chrm) -{ - mng_chrmp pCHRM; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_CHRM, MNG_LC_START) -#endif - - pCHRM = (mng_chrmp)pChunk; /* address the proper chunk */ - - if (pCHRM->bEmpty) /* write empty ? */ - iRetcode = write_raw_chunk (pData, pCHRM->sHeader.iChunkname, 0, 0); - else - { - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 32; - /* fill the buffer */ - mng_put_uint32 (pRawdata, pCHRM->iWhitepointx); - mng_put_uint32 (pRawdata+4, pCHRM->iWhitepointy); - mng_put_uint32 (pRawdata+8, pCHRM->iRedx); - mng_put_uint32 (pRawdata+12, pCHRM->iRedy); - mng_put_uint32 (pRawdata+16, pCHRM->iGreenx); - mng_put_uint32 (pRawdata+20, pCHRM->iGreeny); - mng_put_uint32 (pRawdata+24, pCHRM->iBluex); - mng_put_uint32 (pRawdata+28, pCHRM->iBluey); - /* and write it */ - iRetcode = write_raw_chunk (pData, pCHRM->sHeader.iChunkname, - iRawlen, pRawdata); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_CHRM, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_srgb) -{ - mng_srgbp pSRGB; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_SRGB, MNG_LC_START) -#endif - - pSRGB = (mng_srgbp)pChunk; /* address the proper chunk */ - - if (pSRGB->bEmpty) /* write empty ? */ - iRetcode = write_raw_chunk (pData, pSRGB->sHeader.iChunkname, 0, 0); - else - { - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 1; - /* fill the buffer */ - *pRawdata = pSRGB->iRenderingintent; - /* and write it */ - iRetcode = write_raw_chunk (pData, pSRGB->sHeader.iChunkname, - iRawlen, pRawdata); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_SRGB, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_iccp) -{ - mng_iccpp pICCP; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_uint8p pTemp; - mng_uint8p pBuf = 0; - mng_uint32 iBuflen; - mng_uint32 iReallen; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_ICCP, MNG_LC_START) -#endif - - pICCP = (mng_iccpp)pChunk; /* address the proper chunk */ - - if (pICCP->bEmpty) /* write empty ? */ - iRetcode = write_raw_chunk (pData, pICCP->sHeader.iChunkname, 0, 0); - else - { /* compress the profile */ - iRetcode = deflate_buffer (pData, pICCP->pProfile, pICCP->iProfilesize, - &pBuf, &iBuflen, &iReallen); - - if (!iRetcode) /* still oke ? */ - { - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = pICCP->iNamesize + 2 + iReallen; - /* requires large buffer ? */ - if (iRawlen > pData->iWritebufsize) - MNG_ALLOC (pData, pRawdata, iRawlen) - - pTemp = pRawdata; /* fill the buffer */ - - if (pICCP->iNamesize) - { - MNG_COPY (pTemp, pICCP->zName, pICCP->iNamesize) - pTemp += pICCP->iNamesize; - } - - *pTemp = 0; - *(pTemp+1) = pICCP->iCompression; - pTemp += 2; - - if (iReallen) - MNG_COPY (pTemp, pBuf, iReallen) - /* and write it */ - iRetcode = write_raw_chunk (pData, pICCP->sHeader.iChunkname, - iRawlen, pRawdata); - /* drop the temp buffer ? */ - if (iRawlen > pData->iWritebufsize) - MNG_FREEX (pData, pRawdata, iRawlen) - - } - - MNG_FREEX (pData, pBuf, iBuflen) /* always drop the extra buffer */ - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_ICCP, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_text) -{ - mng_textp pTEXT; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_uint8p pTemp; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_TEXT, MNG_LC_START) -#endif - - pTEXT = (mng_textp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = pTEXT->iKeywordsize + 1 + pTEXT->iTextsize; - /* requires large buffer ? */ - if (iRawlen > pData->iWritebufsize) - MNG_ALLOC (pData, pRawdata, iRawlen) - - pTemp = pRawdata; /* fill the buffer */ - - if (pTEXT->iKeywordsize) - { - MNG_COPY (pTemp, pTEXT->zKeyword, pTEXT->iKeywordsize) - pTemp += pTEXT->iKeywordsize; - } - - *pTemp = 0; - pTemp += 1; - - if (pTEXT->iTextsize) - MNG_COPY (pTemp, pTEXT->zText, pTEXT->iTextsize) - /* and write it */ - iRetcode = write_raw_chunk (pData, pTEXT->sHeader.iChunkname, - iRawlen, pRawdata); - - if (iRawlen > pData->iWritebufsize) /* drop the temp buffer ? */ - MNG_FREEX (pData, pRawdata, iRawlen) - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_TEXT, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_ztxt) -{ - mng_ztxtp pZTXT; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_uint8p pTemp; - mng_uint8p pBuf = 0; - mng_uint32 iBuflen; - mng_uint32 iReallen; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_ZTXT, MNG_LC_START) -#endif - - pZTXT = (mng_ztxtp)pChunk; /* address the proper chunk */ - /* compress the text */ - iRetcode = deflate_buffer (pData, (mng_uint8p)pZTXT->zText, pZTXT->iTextsize, - &pBuf, &iBuflen, &iReallen); - - if (!iRetcode) /* all ok ? */ - { - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = pZTXT->iKeywordsize + 2 + iReallen; - /* requires large buffer ? */ - if (iRawlen > pData->iWritebufsize) - MNG_ALLOC (pData, pRawdata, iRawlen) - - pTemp = pRawdata; /* fill the buffer */ - - if (pZTXT->iKeywordsize) - { - MNG_COPY (pTemp, pZTXT->zKeyword, pZTXT->iKeywordsize) - pTemp += pZTXT->iKeywordsize; - } - - *pTemp = 0; /* terminator zero */ - pTemp++; - *pTemp = 0; /* compression type */ - pTemp++; - - if (iReallen) - MNG_COPY (pTemp, pBuf, iReallen) - /* and write it */ - iRetcode = write_raw_chunk (pData, pZTXT->sHeader.iChunkname, - iRawlen, pRawdata); - /* drop the temp buffer ? */ - if (iRawlen > pData->iWritebufsize) - MNG_FREEX (pData, pRawdata, iRawlen) - - } - - MNG_FREEX (pData, pBuf, iBuflen); /* always drop the compression buffer */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_ZTXT, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_itxt) -{ - mng_itxtp pITXT; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_uint8p pTemp; - mng_uint8p pBuf = 0; - mng_uint32 iBuflen; - mng_uint32 iReallen; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_ITXT, MNG_LC_START) -#endif - - pITXT = (mng_itxtp)pChunk; /* address the proper chunk */ - - if (pITXT->iCompressionflag) /* compress the text */ - iRetcode = deflate_buffer (pData, (mng_uint8p)pITXT->zText, pITXT->iTextsize, - &pBuf, &iBuflen, &iReallen); - else - iRetcode = MNG_NOERROR; - - if (!iRetcode) /* all ok ? */ - { - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = pITXT->iKeywordsize + pITXT->iLanguagesize + - pITXT->iTranslationsize + 5; - - if (pITXT->iCompressionflag) - iRawlen = iRawlen + iReallen; - else - iRawlen = iRawlen + pITXT->iTextsize; - /* requires large buffer ? */ - if (iRawlen > pData->iWritebufsize) - MNG_ALLOC (pData, pRawdata, iRawlen) - - pTemp = pRawdata; /* fill the buffer */ - - if (pITXT->iKeywordsize) - { - MNG_COPY (pTemp, pITXT->zKeyword, pITXT->iKeywordsize) - pTemp += pITXT->iKeywordsize; - } - - *pTemp = 0; - pTemp++; - *pTemp = pITXT->iCompressionflag; - pTemp++; - *pTemp = pITXT->iCompressionmethod; - pTemp++; - - if (pITXT->iLanguagesize) - { - MNG_COPY (pTemp, pITXT->zLanguage, pITXT->iLanguagesize) - pTemp += pITXT->iLanguagesize; - } - - *pTemp = 0; - pTemp++; - - if (pITXT->iTranslationsize) - { - MNG_COPY (pTemp, pITXT->zTranslation, pITXT->iTranslationsize) - pTemp += pITXT->iTranslationsize; - } - - *pTemp = 0; - pTemp++; - - if (pITXT->iCompressionflag) - { - if (iReallen) - MNG_COPY (pTemp, pBuf, iReallen) - } - else - { - if (pITXT->iTextsize) - MNG_COPY (pTemp, pITXT->zText, pITXT->iTextsize) - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pITXT->sHeader.iChunkname, - iRawlen, pRawdata); - /* drop the temp buffer ? */ - if (iRawlen > pData->iWritebufsize) - MNG_FREEX (pData, pRawdata, iRawlen) - - } - - MNG_FREEX (pData, pBuf, iBuflen); /* always drop the compression buffer */ - - if (iRetcode) /* on error bail out */ - return iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_ITXT, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_bkgd) -{ - mng_bkgdp pBKGD; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_BKGD, MNG_LC_START) -#endif - - pBKGD = (mng_bkgdp)pChunk; /* address the proper chunk */ - - if (pBKGD->bEmpty) /* write empty ? */ - iRetcode = write_raw_chunk (pData, pBKGD->sHeader.iChunkname, 0, 0); - else - { - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 0; /* and default size */ - - switch (pBKGD->iType) - { - case 0: { /* gray */ - iRawlen = 2; /* fill the size & output buffer */ - mng_put_uint16 (pRawdata, pBKGD->iGray); - - break; - } - case 2: { /* rgb */ - iRawlen = 6; /* fill the size & output buffer */ - mng_put_uint16 (pRawdata, pBKGD->iRed); - mng_put_uint16 (pRawdata+2, pBKGD->iGreen); - mng_put_uint16 (pRawdata+4, pBKGD->iBlue); - - break; - } - case 3: { /* indexed */ - iRawlen = 1; /* fill the size & output buffer */ - *pRawdata = pBKGD->iIndex; - - break; - } - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pBKGD->sHeader.iChunkname, - iRawlen, pRawdata); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_BKGD, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_phys) -{ - mng_physp pPHYS; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_PHYS, MNG_LC_START) -#endif - - pPHYS = (mng_physp)pChunk; /* address the proper chunk */ - - if (pPHYS->bEmpty) /* write empty ? */ - iRetcode = write_raw_chunk (pData, pPHYS->sHeader.iChunkname, 0, 0); - else - { - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 9; - /* fill the output buffer */ - mng_put_uint32 (pRawdata, pPHYS->iSizex); - mng_put_uint32 (pRawdata+4, pPHYS->iSizey); - - *(pRawdata+8) = pPHYS->iUnit; - /* and write it */ - iRetcode = write_raw_chunk (pData, pPHYS->sHeader.iChunkname, - iRawlen, pRawdata); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_PHYS, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_sbit) -{ - mng_sbitp pSBIT; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_SBIT, MNG_LC_START) -#endif - - pSBIT = (mng_sbitp)pChunk; /* address the proper chunk */ - - if (pSBIT->bEmpty) /* write empty ? */ - iRetcode = write_raw_chunk (pData, pSBIT->sHeader.iChunkname, 0, 0); - else - { - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 0; /* and default size */ - - switch (pSBIT->iType) - { - case 0: { /* gray */ - iRawlen = 1; /* fill the size & output buffer */ - *pRawdata = pSBIT->aBits[0]; - - break; - } - case 2: { /* rgb */ - iRawlen = 3; /* fill the size & output buffer */ - *pRawdata = pSBIT->aBits[0]; - *(pRawdata+1) = pSBIT->aBits[1]; - *(pRawdata+2) = pSBIT->aBits[2]; - - break; - } - case 3: { /* indexed */ - iRawlen = 1; /* fill the size & output buffer */ - *pRawdata = pSBIT->aBits[0]; - - break; - } - case 4: { /* gray + alpha */ - iRawlen = 2; /* fill the size & output buffer */ - *pRawdata = pSBIT->aBits[0]; - *(pRawdata+1) = pSBIT->aBits[1]; - - break; - } - case 6: { /* rgb + alpha */ - iRawlen = 4; /* fill the size & output buffer */ - *pRawdata = pSBIT->aBits[0]; - *(pRawdata+1) = pSBIT->aBits[1]; - *(pRawdata+2) = pSBIT->aBits[2]; - *(pRawdata+3) = pSBIT->aBits[3]; - - break; - } - case 10: { /* jpeg gray */ - iRawlen = 1; /* fill the size & output buffer */ - *pRawdata = pSBIT->aBits[0]; - - break; - } - case 12: { /* jpeg rgb */ - iRawlen = 3; /* fill the size & output buffer */ - *pRawdata = pSBIT->aBits[0]; - *(pRawdata+1) = pSBIT->aBits[1]; - *(pRawdata+2) = pSBIT->aBits[2]; - - break; - } - case 14: { /* jpeg gray + alpha */ - iRawlen = 2; /* fill the size & output buffer */ - *pRawdata = pSBIT->aBits[0]; - *(pRawdata+1) = pSBIT->aBits[1]; - - break; - } - case 16: { /* jpeg rgb + alpha */ - iRawlen = 4; /* fill the size & output buffer */ - *pRawdata = pSBIT->aBits[0]; - *(pRawdata+1) = pSBIT->aBits[1]; - *(pRawdata+2) = pSBIT->aBits[2]; - *(pRawdata+3) = pSBIT->aBits[3]; - - break; - } - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pSBIT->sHeader.iChunkname, - iRawlen, pRawdata); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_SBIT, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_splt) -{ - mng_spltp pSPLT; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_uint32 iEntrieslen; - mng_uint8p pTemp; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_SPLT, MNG_LC_START) -#endif - - pSPLT = (mng_spltp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iEntrieslen = ((pSPLT->iSampledepth >> 3) * 4 + 2) * pSPLT->iEntrycount; - iRawlen = pSPLT->iNamesize + 2 + iEntrieslen; - /* requires large buffer ? */ - if (iRawlen > pData->iWritebufsize) - MNG_ALLOC (pData, pRawdata, iRawlen) - - pTemp = pRawdata; /* fill the buffer */ - - if (pSPLT->iNamesize) - { - MNG_COPY (pTemp, pSPLT->zName, pSPLT->iNamesize) - pTemp += pSPLT->iNamesize; - } - - *pTemp = 0; - *(pTemp+1) = pSPLT->iSampledepth; - pTemp += 2; - - if (pSPLT->iEntrycount) - MNG_COPY (pTemp, pSPLT->pEntries, iEntrieslen) - /* and write it */ - iRetcode = write_raw_chunk (pData, pSPLT->sHeader.iChunkname, - iRawlen, pRawdata); - - if (iRawlen > pData->iWritebufsize) /* drop the temp buffer ? */ - MNG_FREEX (pData, pRawdata, iRawlen) - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_SPLT, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_hist) -{ - mng_histp pHIST; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_uint8p pTemp; - mng_uint32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_HIST, MNG_LC_START) -#endif - - pHIST = (mng_histp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = pHIST->iEntrycount << 1; - - pTemp = pRawdata; /* fill the output buffer */ - - for (iX = 0; iX < pHIST->iEntrycount; iX++) - { - mng_put_uint16 (pTemp, pHIST->aEntries [iX]); - pTemp += 2; - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pHIST->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_HIST, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_time) -{ - mng_timep pTIME; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_TIME, MNG_LC_START) -#endif - - pTIME = (mng_timep)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 7; - /* fill the output buffer */ - mng_put_uint16 (pRawdata, pTIME->iYear); - - *(pRawdata+2) = pTIME->iMonth; - *(pRawdata+3) = pTIME->iDay; - *(pRawdata+4) = pTIME->iHour; - *(pRawdata+5) = pTIME->iMinute; - *(pRawdata+6) = pTIME->iSecond; - /* and write it */ - iRetcode = write_raw_chunk (pData, pTIME->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_TIME, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_mhdr) -{ - mng_mhdrp pMHDR; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_MHDR, MNG_LC_START) -#endif - - pMHDR = (mng_mhdrp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 28; - /* fill the output buffer */ - mng_put_uint32 (pRawdata, pMHDR->iWidth); - mng_put_uint32 (pRawdata+4, pMHDR->iHeight); - mng_put_uint32 (pRawdata+8, pMHDR->iTicks); - mng_put_uint32 (pRawdata+12, pMHDR->iLayercount); - mng_put_uint32 (pRawdata+16, pMHDR->iFramecount); - mng_put_uint32 (pRawdata+20, pMHDR->iPlaytime); - mng_put_uint32 (pRawdata+24, pMHDR->iSimplicity); - - /* and write it */ - iRetcode = write_raw_chunk (pData, pMHDR->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_MHDR, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_mend) -{ - mng_mendp pMEND; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_MEND, MNG_LC_START) -#endif - - pMEND = (mng_mendp)pChunk; /* address the proper chunk */ - /* and write it */ - iRetcode = write_raw_chunk (pData, pMEND->sHeader.iChunkname, 0, 0); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_MEND, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_loop) -{ - mng_loopp pLOOP; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_uint8p pTemp1; - mng_uint32p pTemp2; - mng_uint32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_LOOP, MNG_LC_START) -#endif - - pLOOP = (mng_loopp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 5; - /* fill the output buffer */ - *pRawdata = pLOOP->iLevel; - mng_put_uint32 (pRawdata+1, pLOOP->iRepeat); - - if (pLOOP->iTermination) - { - iRawlen++; - *(pRawdata+5) = pLOOP->iTermination; - - if ((pLOOP->iCount) || - (pLOOP->iItermin != 1) || (pLOOP->iItermax != 0x7FFFFFFFL)) - { - iRawlen += 8; - - mng_put_uint32 (pRawdata+6, pLOOP->iItermin); - mng_put_uint32 (pRawdata+10, pLOOP->iItermax); - - if (pLOOP->iCount) - { - iRawlen += pLOOP->iCount * 4; - - pTemp1 = pRawdata+14; - pTemp2 = pLOOP->pSignals; - - for (iX = 0; iX < pLOOP->iCount; iX++) - { - mng_put_uint32 (pTemp1, *pTemp2); - - pTemp1 += 4; - pTemp2++; - } - } - } - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pLOOP->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_LOOP, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_endl) -{ - mng_endlp pENDL; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_ENDL, MNG_LC_START) -#endif - - pENDL = (mng_endlp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 1; - - *pRawdata = pENDL->iLevel; /* fill the output buffer */ - /* and write it */ - iRetcode = write_raw_chunk (pData, pENDL->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_ENDL, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_defi) -{ - mng_defip pDEFI; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_DEFI, MNG_LC_START) -#endif - - pDEFI = (mng_defip)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 2; - /* fill the output buffer */ - mng_put_uint16 (pRawdata, pDEFI->iObjectid); - - if ((pDEFI->iDonotshow) || (pDEFI->iConcrete) || (pDEFI->bHasloca) || (pDEFI->bHasclip)) - { - iRawlen++; - *(pRawdata+2) = pDEFI->iDonotshow; - - if ((pDEFI->iConcrete) || (pDEFI->bHasloca) || (pDEFI->bHasclip)) - { - iRawlen++; - *(pRawdata+3) = pDEFI->iConcrete; - - if ((pDEFI->bHasloca) || (pDEFI->bHasclip)) - { - iRawlen += 8; - - mng_put_uint32 (pRawdata+4, pDEFI->iXlocation); - mng_put_uint32 (pRawdata+8, pDEFI->iYlocation); - - if (pDEFI->bHasclip) - { - iRawlen += 16; - - mng_put_uint32 (pRawdata+12, pDEFI->iLeftcb); - mng_put_uint32 (pRawdata+16, pDEFI->iRightcb); - mng_put_uint32 (pRawdata+20, pDEFI->iTopcb); - mng_put_uint32 (pRawdata+24, pDEFI->iBottomcb); - } - } - } - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pDEFI->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_DEFI, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_basi) -{ - mng_basip pBASI; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_bool bOpaque; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_BASI, MNG_LC_START) -#endif - - pBASI = (mng_basip)pChunk; /* address the proper chunk */ - - if (pBASI->iBitdepth <= 8) /* determine opacity alpha-field */ - bOpaque = (mng_bool)(pBASI->iAlpha == 0xFF); - else - bOpaque = (mng_bool)(pBASI->iAlpha == 0xFFFF); - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 13; - /* fill the output buffer */ - mng_put_uint32 (pRawdata, pBASI->iWidth); - mng_put_uint32 (pRawdata+4, pBASI->iHeight); - - *(pRawdata+8) = pBASI->iBitdepth; - *(pRawdata+9) = pBASI->iColortype; - *(pRawdata+10) = pBASI->iCompression; - *(pRawdata+11) = pBASI->iFilter; - *(pRawdata+12) = pBASI->iInterlace; - - if ((pBASI->iRed) || (pBASI->iGreen) || (pBASI->iBlue) || - (!bOpaque) || (pBASI->iViewable)) - { - iRawlen += 6; - mng_put_uint16 (pRawdata+13, pBASI->iRed); - mng_put_uint16 (pRawdata+15, pBASI->iGreen); - mng_put_uint16 (pRawdata+17, pBASI->iBlue); - - if ((!bOpaque) || (pBASI->iViewable)) - { - iRawlen += 2; - mng_put_uint16 (pRawdata+19, pBASI->iAlpha); - - if (pBASI->iViewable) - { - iRawlen++; - *(pRawdata+21) = pBASI->iViewable; - } - } - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pBASI->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_BASI, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_clon) -{ - mng_clonp pCLON; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_CLON, MNG_LC_START) -#endif - - pCLON = (mng_clonp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 4; - /* fill the output buffer */ - mng_put_uint16 (pRawdata, pCLON->iSourceid); - mng_put_uint16 (pRawdata+2, pCLON->iCloneid); - - if ((pCLON->iClonetype) || (pCLON->iDonotshow) || (pCLON->iConcrete) || (pCLON->bHasloca)) - { - iRawlen++; - *(pRawdata+4) = pCLON->iClonetype; - - if ((pCLON->iDonotshow) || (pCLON->iConcrete) || (pCLON->bHasloca)) - { - iRawlen++; - *(pRawdata+5) = pCLON->iDonotshow; - - if ((pCLON->iConcrete) || (pCLON->bHasloca)) - { - iRawlen++; - *(pRawdata+6) = pCLON->iConcrete; - - if (pCLON->bHasloca) - { - iRawlen += 9; - *(pRawdata+7) = pCLON->iLocationtype; - mng_put_int32 (pRawdata+8, pCLON->iLocationx); - mng_put_int32 (pRawdata+12, pCLON->iLocationy); - } - } - } - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pCLON->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_CLON, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_past) -{ - mng_pastp pPAST; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_past_sourcep pSource; - mng_uint32 iX; - mng_uint8p pTemp; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_PAST, MNG_LC_START) -#endif - - pPAST = (mng_pastp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 11 + (30 * pPAST->iCount); - /* requires large buffer ? */ - if (iRawlen > pData->iWritebufsize) - MNG_ALLOC (pData, pRawdata, iRawlen) - /* fill the output buffer */ - mng_put_uint16 (pRawdata, pPAST->iDestid); - - *(pRawdata+2) = pPAST->iTargettype; - - mng_put_int32 (pRawdata+3, pPAST->iTargetx); - mng_put_int32 (pRawdata+7, pPAST->iTargety); - - pTemp = pRawdata+11; - pSource = pPAST->pSources; - - for (iX = 0; iX < pPAST->iCount; iX++) - { - mng_put_uint16 (pTemp, pSource->iSourceid); - - *(pTemp+2) = pSource->iComposition; - *(pTemp+3) = pSource->iOrientation; - *(pTemp+4) = pSource->iOffsettype; - - mng_put_int32 (pTemp+5, pSource->iOffsetx); - mng_put_int32 (pTemp+9, pSource->iOffsety); - - *(pTemp+13) = pSource->iBoundarytype; - - mng_put_int32 (pTemp+14, pSource->iBoundaryl); - mng_put_int32 (pTemp+18, pSource->iBoundaryr); - mng_put_int32 (pTemp+22, pSource->iBoundaryt); - mng_put_int32 (pTemp+26, pSource->iBoundaryb); - - pSource++; - pTemp += 30; - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pPAST->sHeader.iChunkname, - iRawlen, pRawdata); - /* free temporary buffer ? */ - if (iRawlen > pData->iWritebufsize) - MNG_FREEX (pData, pRawdata, iRawlen) - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_PAST, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_disc) -{ - mng_discp pDISC; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_uint32 iX; - mng_uint8p pTemp1; - mng_uint16p pTemp2; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_DISC, MNG_LC_START) -#endif - - pDISC = (mng_discp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = pDISC->iCount << 1; - - pTemp1 = pRawdata; /* fill the output buffer */ - pTemp2 = pDISC->pObjectids; - - for (iX = 0; iX < pDISC->iCount; iX++) - { - mng_put_uint16 (pTemp1, *pTemp2); - - pTemp2++; - pTemp1 += 2; - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pDISC->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_DISC, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_back) -{ - mng_backp pBACK; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_BACK, MNG_LC_START) -#endif - - pBACK = (mng_backp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 6; - /* fill the output buffer */ - mng_put_uint16 (pRawdata, pBACK->iRed); - mng_put_uint16 (pRawdata+2, pBACK->iGreen); - mng_put_uint16 (pRawdata+4, pBACK->iBlue); - - if ((pBACK->iMandatory) || (pBACK->iImageid) || (pBACK->iTile)) - { - iRawlen++; - *(pRawdata+6) = pBACK->iMandatory; - - if ((pBACK->iImageid) || (pBACK->iTile)) - { - iRawlen += 2; - mng_put_uint16 (pRawdata+7, pBACK->iImageid); - - if (pBACK->iTile) - { - iRawlen++; - *(pRawdata+9) = pBACK->iTile; - } - } - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pBACK->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_BACK, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_fram) -{ - mng_framp pFRAM; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_uint8p pTemp; - mng_uint32p pTemp2; - mng_uint32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_FRAM, MNG_LC_START) -#endif - - pFRAM = (mng_framp)pChunk; /* address the proper chunk */ - - if (pFRAM->bEmpty) /* empty ? */ - iRetcode = write_raw_chunk (pData, pFRAM->sHeader.iChunkname, 0, 0); - else - { - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 1; - /* fill the output buffer */ - *pRawdata = pFRAM->iMode; - - if ((pFRAM->iNamesize ) || - (pFRAM->iChangedelay ) || (pFRAM->iChangetimeout) || - (pFRAM->iChangeclipping) || (pFRAM->iChangesyncid ) ) - { - if (pFRAM->iNamesize) - MNG_COPY (pRawdata+1, pFRAM->zName, pFRAM->iNamesize) - - iRawlen += pFRAM->iNamesize; - pTemp = pRawdata + pFRAM->iNamesize + 1; - - if ((pFRAM->iChangedelay ) || (pFRAM->iChangetimeout) || - (pFRAM->iChangeclipping) || (pFRAM->iChangesyncid ) ) - { - *pTemp = 0; - *(pTemp+1) = pFRAM->iChangedelay; - *(pTemp+2) = pFRAM->iChangetimeout; - *(pTemp+3) = pFRAM->iChangeclipping; - *(pTemp+4) = pFRAM->iChangesyncid; - - iRawlen += 5; - pTemp += 5; - - if (pFRAM->iChangedelay) - { - mng_put_uint32 (pTemp, pFRAM->iDelay); - iRawlen += 4; - pTemp += 4; - } - - if (pFRAM->iChangetimeout) - { - mng_put_uint32 (pTemp, pFRAM->iTimeout); - iRawlen += 4; - pTemp += 4; - } - - if (pFRAM->iChangeclipping) - { - *pTemp = pFRAM->iBoundarytype; - - mng_put_uint32 (pTemp+1, pFRAM->iBoundaryl); - mng_put_uint32 (pTemp+5, pFRAM->iBoundaryr); - mng_put_uint32 (pTemp+9, pFRAM->iBoundaryt); - mng_put_uint32 (pTemp+13, pFRAM->iBoundaryb); - - iRawlen += 17; - pTemp += 17; - } - - if (pFRAM->iChangesyncid) - { - iRawlen += pFRAM->iCount * 4; - pTemp2 = pFRAM->pSyncids; - - for (iX = 0; iX < pFRAM->iCount; iX++) - { - mng_put_uint32 (pTemp, *pTemp2); - - pTemp2++; - pTemp += 4; - } - } - } - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pFRAM->sHeader.iChunkname, - iRawlen, pRawdata); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_FRAM, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_move) -{ - mng_movep pMOVE; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_MOVE, MNG_LC_START) -#endif - - pMOVE = (mng_movep)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 13; - /* fill the output buffer */ - mng_put_uint16 (pRawdata, pMOVE->iFirstid); - mng_put_uint16 (pRawdata+2, pMOVE->iLastid); - - *(pRawdata+4) = pMOVE->iMovetype; - - mng_put_int32 (pRawdata+5, pMOVE->iMovex); - mng_put_int32 (pRawdata+9, pMOVE->iMovey); - /* and write it */ - iRetcode = write_raw_chunk (pData, pMOVE->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_MOVE, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_clip) -{ - mng_clipp pCLIP; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_CLIP, MNG_LC_START) -#endif - - pCLIP = (mng_clipp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 21; - /* fill the output buffer */ - mng_put_uint16 (pRawdata, pCLIP->iFirstid); - mng_put_uint16 (pRawdata+2, pCLIP->iLastid); - - *(pRawdata+4) = pCLIP->iCliptype; - - mng_put_int32 (pRawdata+5, pCLIP->iClipl); - mng_put_int32 (pRawdata+9, pCLIP->iClipr); - mng_put_int32 (pRawdata+13, pCLIP->iClipt); - mng_put_int32 (pRawdata+17, pCLIP->iClipb); - /* and write it */ - iRetcode = write_raw_chunk (pData, pCLIP->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_CLIP, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_show) -{ - mng_showp pSHOW; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_SHOW, MNG_LC_START) -#endif - - pSHOW = (mng_showp)pChunk; /* address the proper chunk */ - - if (pSHOW->bEmpty) /* empty ? */ - iRetcode = write_raw_chunk (pData, pSHOW->sHeader.iChunkname, 0, 0); - else - { - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 2; - /* fill the output buffer */ - mng_put_uint16 (pRawdata, pSHOW->iFirstid); - - if ((pSHOW->iLastid != pSHOW->iFirstid) || (pSHOW->iMode)) - { - iRawlen += 2; - mng_put_uint16 (pRawdata+2, pSHOW->iLastid); - - if (pSHOW->iMode) - { - iRawlen++; - *(pRawdata+4) = pSHOW->iMode; - } - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pSHOW->sHeader.iChunkname, - iRawlen, pRawdata); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_SHOW, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_term) -{ - mng_termp pTERM; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_TERM, MNG_LC_START) -#endif - - pTERM = (mng_termp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 1; - - *pRawdata = pTERM->iTermaction; /* fill the output buffer */ - - if (pTERM->iTermaction == 3) - { - iRawlen = 10; - *(pRawdata+1) = pTERM->iIteraction; - - mng_put_uint32 (pRawdata+2, pTERM->iDelay); - mng_put_uint32 (pRawdata+6, pTERM->iItermax); - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pTERM->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_TERM, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_save) -{ - mng_savep pSAVE; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_save_entryp pEntry; - mng_uint32 iEntrysize; - mng_uint8p pTemp; - mng_uint32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_SAVE, MNG_LC_START) -#endif - - pSAVE = (mng_savep)pChunk; /* address the proper chunk */ - - if (pSAVE->bEmpty) /* empty ? */ - iRetcode = write_raw_chunk (pData, pSAVE->sHeader.iChunkname, 0, 0); - else - { - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 1; - - *pRawdata = pSAVE->iOffsettype; /* fill the output buffer */ - - if (pSAVE->iOffsettype == 16) - iEntrysize = 25; - else - iEntrysize = 17; - - pTemp = pRawdata+1; - pEntry = pSAVE->pEntries; - - for (iX = 0; iX < pSAVE->iCount; iX++) - { - if (iX) /* put separator null-byte, except the first */ - { - *pTemp = 0; - pTemp++; - iRawlen++; - } - - iRawlen += iEntrysize + pEntry->iNamesize; - *pTemp = pEntry->iEntrytype; - - if (pSAVE->iOffsettype == 16) - { - mng_put_uint32 (pTemp+1, pEntry->iOffset[0]); - mng_put_uint32 (pTemp+5, pEntry->iOffset[1]); - mng_put_uint32 (pTemp+9, pEntry->iStarttime[0]); - mng_put_uint32 (pTemp+13, pEntry->iStarttime[1]); - mng_put_uint32 (pTemp+17, pEntry->iLayernr); - mng_put_uint32 (pTemp+21, pEntry->iFramenr); - - pTemp += 25; - } - else - { - mng_put_uint32 (pTemp+1, pEntry->iOffset[1]); - mng_put_uint32 (pTemp+5, pEntry->iStarttime[1]); - mng_put_uint32 (pTemp+9, pEntry->iLayernr); - mng_put_uint32 (pTemp+13, pEntry->iFramenr); - - pTemp += 17; - } - - if (pEntry->iNamesize) - { - MNG_COPY (pTemp, pEntry->zName, pEntry->iNamesize); - pTemp += pEntry->iNamesize; - } - - pEntry++; - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pSAVE->sHeader.iChunkname, - iRawlen, pRawdata); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_SAVE, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_seek) -{ - mng_seekp pSEEK; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_SEEK, MNG_LC_START) -#endif - - pSEEK = (mng_seekp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = pSEEK->iNamesize; - - if (iRawlen) /* fill the output buffer */ - MNG_COPY (pRawdata, pSEEK->zName, iRawlen) - /* and write it */ - iRetcode = write_raw_chunk (pData, pSEEK->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_SEEK, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_expi) -{ - mng_expip pEXPI; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_EXPI, MNG_LC_START) -#endif - - pEXPI = (mng_expip)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 2 + pEXPI->iNamesize; - /* fill the output buffer */ - mng_put_uint16 (pRawdata, pEXPI->iSnapshotid); - - if (pEXPI->iNamesize) - MNG_COPY (pRawdata+2, pEXPI->zName, pEXPI->iNamesize) - /* and write it */ - iRetcode = write_raw_chunk (pData, pEXPI->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_EXPI, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_fpri) -{ - mng_fprip pFPRI; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_FPRI, MNG_LC_START) -#endif - - pFPRI = (mng_fprip)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 2; - - *pRawdata = pFPRI->iDeltatype; /* fill the output buffer */ - *(pRawdata+1) = pFPRI->iPriority; - /* and write it */ - iRetcode = write_raw_chunk (pData, pFPRI->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_FPRI, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_need) -{ - mng_needp pNEED; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_NEED, MNG_LC_START) -#endif - - pNEED = (mng_needp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = pNEED->iKeywordssize; - /* fill the output buffer */ - if (pNEED->iKeywordssize) - MNG_COPY (pRawdata, pNEED->zKeywords, pNEED->iKeywordssize) - /* and write it */ - iRetcode = write_raw_chunk (pData, pNEED->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_NEED, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_phyg) -{ - mng_phygp pPHYG; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_PHYG, MNG_LC_START) -#endif - - pPHYG = (mng_phygp)pChunk; /* address the proper chunk */ - - if (pPHYG->bEmpty) /* write empty ? */ - iRetcode = write_raw_chunk (pData, pPHYG->sHeader.iChunkname, 0, 0); - else - { - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 9; - /* fill the output buffer */ - mng_put_uint32 (pRawdata, pPHYG->iSizex); - mng_put_uint32 (pRawdata+4, pPHYG->iSizey); - - *(pRawdata+8) = pPHYG->iUnit; - /* and write it */ - iRetcode = write_raw_chunk (pData, pPHYG->sHeader.iChunkname, - iRawlen, pRawdata); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_PHYG, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -/* B004 */ -#ifdef MNG_INCLUDE_JNG -/* B004 */ -WRITE_CHUNK (write_jhdr) -{ - mng_jhdrp pJHDR; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_JHDR, MNG_LC_START) -#endif - - pJHDR = (mng_jhdrp)pChunk; /* address the proper chunk */ - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 16; - /* fill the output buffer */ - mng_put_uint32 (pRawdata, pJHDR->iWidth); - mng_put_uint32 (pRawdata+4, pJHDR->iHeight); - - *(pRawdata+8) = pJHDR->iColortype; - *(pRawdata+9) = pJHDR->iImagesampledepth; - *(pRawdata+10) = pJHDR->iImagecompression; - *(pRawdata+11) = pJHDR->iImageinterlace; - *(pRawdata+12) = pJHDR->iAlphasampledepth; - *(pRawdata+13) = pJHDR->iAlphacompression; - *(pRawdata+14) = pJHDR->iAlphafilter; - *(pRawdata+15) = pJHDR->iAlphainterlace; - /* and write it */ - iRetcode = write_raw_chunk (pData, pJHDR->sHeader.iChunkname, iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_JHDR, MNG_LC_END) -#endif - - return iRetcode; -} -#else -#define write_jhdr 0 -/* B004 */ -#endif /* MNG_INCLUDE_JNG */ -/* B004 */ - -/* ************************************************************************** */ - -#ifdef MNG_INCLUDE_JNG -WRITE_CHUNK (write_jdaa) -{ - mng_jdatp pJDAA; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_JDAA, MNG_LC_START) -#endif - - pJDAA = (mng_jdaap)pChunk; /* address the proper chunk */ - - if (pJDAA->bEmpty) /* and write it */ - iRetcode = write_raw_chunk (pData, pJDAA->sHeader.iChunkname, 0, 0); - else - iRetcode = write_raw_chunk (pData, pJDAA->sHeader.iChunkname, - pJDAA->iDatasize, pJDAA->pData); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_JDAA, MNG_LC_END) -#endif - - return iRetcode; -} -#else -#define write_jdaa 0 -#endif /* MNG_INCLUDE_JNG */ - -/* ************************************************************************** */ - -/* B004 */ -#ifdef MNG_INCLUDE_JNG -/* B004 */ -WRITE_CHUNK (write_jdat) -{ - mng_jdatp pJDAT; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_JDAT, MNG_LC_START) -#endif - - pJDAT = (mng_jdatp)pChunk; /* address the proper chunk */ - - if (pJDAT->bEmpty) /* and write it */ - iRetcode = write_raw_chunk (pData, pJDAT->sHeader.iChunkname, 0, 0); - else - iRetcode = write_raw_chunk (pData, pJDAT->sHeader.iChunkname, - pJDAT->iDatasize, pJDAT->pData); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_JDAT, MNG_LC_END) -#endif - - return iRetcode; -} -#else -#define write_jdat 0 -/* B004 */ -#endif /* MNG_INCLUDE_JNG */ -/* B004 */ - -/* ************************************************************************** */ - -/* B004 */ -#ifdef MNG_INCLUDE_JNG -/* B004 */ -WRITE_CHUNK (write_jsep) -{ - mng_jsepp pJSEP; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_JSEP, MNG_LC_START) -#endif - - pJSEP = (mng_jsepp)pChunk; /* address the proper chunk */ - /* and write it */ - iRetcode = write_raw_chunk (pData, pJSEP->sHeader.iChunkname, 0, 0); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_JSEP, MNG_LC_END) -#endif - - return iRetcode; -} -#else -#define write_jsep 0 -/* B004 */ -#endif /* MNG_INCLUDE_JNG */ -/* B004 */ - -/* ************************************************************************** */ - -WRITE_CHUNK (write_dhdr) -{ - mng_dhdrp pDHDR; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_DHDR, MNG_LC_START) -#endif - - pDHDR = (mng_dhdrp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 4; - /* fill the output buffer */ - mng_put_uint16 (pRawdata, pDHDR->iObjectid); - - *(pRawdata+2) = pDHDR->iImagetype; - *(pRawdata+3) = pDHDR->iDeltatype; - - if (pDHDR->iDeltatype != 7) - { - iRawlen += 8; - mng_put_uint32 (pRawdata+4, pDHDR->iBlockwidth); - mng_put_uint32 (pRawdata+8, pDHDR->iBlockheight); - - if (pDHDR->iDeltatype != 0) - { - iRawlen += 8; - mng_put_uint32 (pRawdata+12, pDHDR->iBlockx); - mng_put_uint32 (pRawdata+16, pDHDR->iBlocky); - } - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pDHDR->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_DHDR, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_prom) -{ - mng_promp pPROM; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_PROM, MNG_LC_START) -#endif - - pPROM = (mng_promp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 3; - - *pRawdata = pPROM->iColortype; /* fill the output buffer */ - *(pRawdata+1) = pPROM->iSampledepth; - *(pRawdata+2) = pPROM->iFilltype; - /* and write it */ - iRetcode = write_raw_chunk (pData, pPROM->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_PROM, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_ipng) -{ - mng_ipngp pIPNG; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_IPNG, MNG_LC_START) -#endif - - pIPNG = (mng_ipngp)pChunk; /* address the proper chunk */ - /* and write it */ - iRetcode = write_raw_chunk (pData, pIPNG->sHeader.iChunkname, 0, 0); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_IPNG, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_pplt) -{ - mng_ppltp pPPLT; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_pplt_entryp pEntry; - mng_uint8p pTemp; - mng_uint32 iX; - mng_bool bHasgroup; - mng_uint8p pLastid = 0; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_PPLT, MNG_LC_START) -#endif - - pPPLT = (mng_ppltp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 1; - - *pRawdata = pPPLT->iDeltatype; /* fill the output buffer */ - - pTemp = pRawdata+1; - bHasgroup = MNG_FALSE; - - for (iX = 0; iX < pPPLT->iCount; iX++) - { - pEntry = &pPPLT->aEntries[iX]; - - if (pEntry->bUsed) /* valid entry ? */ - { - if (!bHasgroup) /* start a new group ? */ - { - bHasgroup = MNG_TRUE; - pLastid = pTemp+1; - - *pTemp = (mng_uint8)iX; - *(pTemp+1) = 0; - - pTemp += 2; - } - - switch (pPPLT->iDeltatype) /* add group-entry depending on type */ - { - case 0: ; - case 1: { - *pTemp = pEntry->iRed; - *(pTemp+1) = pEntry->iGreen; - *(pTemp+2) = pEntry->iBlue; - - pTemp += 3; - - break; - } - - case 2: ; - case 3: { - *pTemp = pEntry->iAlpha; - - pTemp++; - - break; - } - - case 4: ; - case 5: { - *pTemp = pEntry->iRed; - *(pTemp+1) = pEntry->iGreen; - *(pTemp+2) = pEntry->iBlue; - *(pTemp+3) = pEntry->iAlpha; - - pTemp += 4; - - break; - } - - } - } - else - { - if (bHasgroup) /* finish off a group ? */ - *pLastid = (mng_uint8)(iX-1); - - bHasgroup = MNG_FALSE; - } - } - - if (bHasgroup) /* last group unfinished ? */ - *pLastid = (mng_uint8)(pPPLT->iCount-1); - /* write the output buffer */ - iRetcode = write_raw_chunk (pData, pPPLT->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_PPLT, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_ijng) -{ - mng_ijngp pIJNG; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_IJNG, MNG_LC_START) -#endif - - pIJNG = (mng_ijngp)pChunk; /* address the proper chunk */ - /* and write it */ - iRetcode = write_raw_chunk (pData, pIJNG->sHeader.iChunkname, 0, 0); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_IJNG, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_drop) -{ - mng_dropp pDROP; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_uint32 iX; - mng_uint8p pTemp1; - mng_chunkidp pTemp2; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_DROP, MNG_LC_START) -#endif - - pDROP = (mng_dropp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = pDROP->iCount << 2; - - pTemp1 = pRawdata; /* fill the output buffer */ - pTemp2 = pDROP->pChunknames; - - for (iX = 0; iX < pDROP->iCount; iX++) - { - mng_put_uint32 (pTemp1, (mng_uint32)*pTemp2); - - pTemp2++; - pTemp1 += 4; - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pDROP->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_DROP, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_dbyk) -{ - mng_dbykp pDBYK; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_DBYK, MNG_LC_START) -#endif - - pDBYK = (mng_dbykp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 5 + pDBYK->iKeywordssize; - /* fill the output buffer */ - mng_put_uint32 (pRawdata, pDBYK->iChunkname); - *(pRawdata+4) = pDBYK->iPolarity; - - if (pDBYK->iKeywordssize) - MNG_COPY (pRawdata+5, pDBYK->zKeywords, pDBYK->iKeywordssize) - /* and write it */ - iRetcode = write_raw_chunk (pData, pDBYK->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_DBYK, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_ordr) -{ - mng_ordrp pORDR; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - mng_uint8p pTemp; - mng_ordr_entryp pEntry; - mng_uint32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_ORDR, MNG_LC_START) -#endif - - pORDR = (mng_ordrp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = pORDR->iCount * 5; - - pTemp = pRawdata; /* fill the output buffer */ - pEntry = pORDR->pEntries; - - for (iX = 0; iX < pORDR->iCount; iX++) - { - mng_put_uint32 (pTemp, pEntry->iChunkname); - *(pTemp+4) = pEntry->iOrdertype; - pTemp += 5; - pEntry++; - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pORDR->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_ORDR, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_magn) -{ - mng_magnp pMAGN; - mng_uint8p pRawdata; - mng_uint32 iRawlen; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_MAGN, MNG_LC_START) -#endif - - pMAGN = (mng_magnp)pChunk; /* address the proper chunk */ - - pRawdata = pData->pWritebuf+8; /* init output buffer & size */ - iRawlen = 20; - /* fill the output buffer */ - mng_put_uint16 (pRawdata, pMAGN->iFirstid); - mng_put_uint16 (pRawdata+2, pMAGN->iLastid); - mng_put_uint16 (pRawdata+4, pMAGN->iMethodX); - mng_put_uint16 (pRawdata+6, pMAGN->iMX); - mng_put_uint16 (pRawdata+8, pMAGN->iMY); - mng_put_uint16 (pRawdata+10, pMAGN->iML); - mng_put_uint16 (pRawdata+12, pMAGN->iMR); - mng_put_uint16 (pRawdata+14, pMAGN->iMT); - mng_put_uint16 (pRawdata+16, pMAGN->iMB); - mng_put_uint16 (pRawdata+18, pMAGN->iMethodY); - /* optimize length */ - if (pMAGN->iMethodY == pMAGN->iMethodX) - { - iRawlen -= 2; - - if (pMAGN->iMB == pMAGN->iMY) - { - iRawlen -= 2; - - if (pMAGN->iMT == pMAGN->iMY) - { - iRawlen -= 2; - - if (pMAGN->iMR == pMAGN->iMX) - { - iRawlen -= 2; - - if (pMAGN->iML == pMAGN->iMX) - { - iRawlen -= 2; - - if (pMAGN->iMY == pMAGN->iMX) - { - iRawlen -= 2; - - if (pMAGN->iMX == 1) - { - iRawlen -= 2; - - if (pMAGN->iMethodX == 0) - { - iRawlen -= 2; - - if (pMAGN->iLastid == pMAGN->iFirstid) - { - iRawlen -= 2; - - if (pMAGN->iFirstid == 0) - iRawlen = 0; - - } - } - } - } - } - } - } - } - } - /* and write it */ - iRetcode = write_raw_chunk (pData, pMAGN->sHeader.iChunkname, - iRawlen, pRawdata); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_MAGN, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -WRITE_CHUNK (write_unknown) -{ - mng_unknown_chunkp pUnknown; - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_UNKNOWN, MNG_LC_START) -#endif - /* address the proper chunk */ - pUnknown = (mng_unknown_chunkp)pChunk; - /* and write it */ - iRetcode = write_raw_chunk (pData, pUnknown->sHeader.iChunkname, - pUnknown->iDatasize, pUnknown->pData); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_WRITE_UNKNOWN, MNG_LC_END) -#endif - - return iRetcode; -} - -/* ************************************************************************** */ - -#endif /* MNG_INCLUDE_WRITE_PROCS */ - -/* ************************************************************************** */ -/* * end of file * */ -/* ************************************************************************** */ - - - - - |