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gecko-dev/modules/libimg/mng/libmng_chunk_io.c

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/* ************************************************************************** */
/* * 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_SEQUENCEERROR)
#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_SEQUENCEERROR)
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_SEQUENCEERROR)
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasIDAT) || (pData->bHasJHDR))
#else
if (pData->bHasIDAT)
#endif
MNG_ERROR (pData, MNG_SEQUENCEERROR)
/* 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_SEQUENCEERROR)
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasJHDR) &&
(pData->iJHDRalphacompression != MNG_COMPRESSION_DEFLATE))
MNG_ERROR (pData, MNG_SEQUENCEERROR)
if (pData->bHasJSEP)
MNG_ERROR (pData, MNG_SEQUENCEERROR)
#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_SEQUENCEERROR)
/* 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 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_SEQUENCEERROR)
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasIDAT) || (pData->bHasJHDR))
#else
if (pData->bHasIDAT)
#endif
MNG_ERROR (pData, MNG_SEQUENCEERROR)
/* 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_SEQUENCEERROR)
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasIDAT) || (pData->bHasPLTE) || (pData->bHasJDAT) || (pData->bHasJDAA))
#else
if ((pData->bHasIDAT) || (pData->bHasPLTE))
#endif
MNG_ERROR (pData, MNG_SEQUENCEERROR)
#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_SEQUENCEERROR)
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasIDAT) || (pData->bHasPLTE) || (pData->bHasJDAT) || (pData->bHasJDAA))
#else
if ((pData->bHasIDAT) || (pData->bHasPLTE))
#endif
MNG_ERROR (pData, MNG_SEQUENCEERROR)
#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_SEQUENCEERROR)
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasIDAT) || (pData->bHasPLTE) || (pData->bHasJDAT) || (pData->bHasJDAA))
#else
if ((pData->bHasIDAT) || (pData->bHasPLTE))
#endif
MNG_ERROR (pData, MNG_SEQUENCEERROR)
#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_SEQUENCEERROR)
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasIDAT) || (pData->bHasPLTE) || (pData->bHasJDAT) || (pData->bHasJDAA))
#else
if ((pData->bHasIDAT) || (pData->bHasPLTE))
#endif
MNG_ERROR (pData, MNG_SEQUENCEERROR)
#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_SEQUENCEERROR)
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_SEQUENCEERROR)
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_SEQUENCEERROR)
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_SEQUENCEERROR)
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasIDAT) || (pData->bHasJDAT) || (pData->bHasJDAA))
#else
if (pData->bHasIDAT)
#endif
MNG_ERROR (pData, MNG_SEQUENCEERROR)
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_SEQUENCEERROR)
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasIDAT) || (pData->bHasJDAT) || (pData->bHasJDAA))
#else
if (pData->bHasIDAT)
#endif
MNG_ERROR (pData, MNG_SEQUENCEERROR)
/* 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_SEQUENCEERROR)
#ifdef MNG_INCLUDE_JNG
if ((pData->bHasPLTE) || (pData->bHasIDAT) || (pData->bHasJDAT) || (pData->bHasJDAA))
#else
if ((pData->bHasPLTE) || (pData->bHasIDAT))
#endif
MNG_ERROR (pData, MNG_SEQUENCEERROR)
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_SEQUENCEERROR)
if (pData->bHasIDAT)
MNG_ERROR (pData, MNG_SEQUENCEERROR)
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_SEQUENCEERROR)
if ((!pData->bHasPLTE) || (pData->bHasIDAT))
MNG_ERROR (pData, MNG_SEQUENCEERROR)
/* 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_SEQUENCEERROR)
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_SEQUENCEERROR)
/* 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_SEQUENCEERROR)
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_SEQUENCEERROR)
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_SEQUENCEERROR)
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 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_SEQUENCEERROR)
#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_SEQUENCEERROR)
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_SEQUENCEERROR)
#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_SEQUENCEERROR)
/* 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_SEQUENCEERROR)
#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_SEQUENCEERROR)
/* 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_SEQUENCEERROR)
#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_SEQUENCEERROR)
/* 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_SEQUENCEERROR)
#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_SEQUENCEERROR)
/* 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_SEQUENCEERROR)
#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_SEQUENCEERROR)
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_SEQUENCEERROR)
#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_SEQUENCEERROR)
/* 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_SEQUENCEERROR)
#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_SEQUENCEERROR)
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_SEQUENCEERROR)
#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_SEQUENCEERROR)
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_SEQUENCEERROR)
#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_SEQUENCEERROR)
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_SEQUENCEERROR)
#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_SEQUENCEERROR)
/* 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_SEQUENCEERROR)
#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_SEQUENCEERROR)
if (pData->bHasLOOP) /* no way, jose! */
MNG_ERROR (pData, MNG_SEQUENCEERROR)
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_SEQUENCEERROR)
#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_SEQUENCEERROR)
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_SEQUENCEERROR)
#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_SEQUENCEERROR)
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_SEQUENCEERROR)
#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_SEQUENCEERROR)
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_SEQUENCEERROR)
#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_SEQUENCEERROR)
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_SEQUENCEERROR)
#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_SEQUENCEERROR)
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_SEQUENCEERROR)
#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_SEQUENCEERROR)
/* 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_SEQUENCEERROR)
if ((pData->bHasIHDR) || (pData->bHasBASI) || (pData->bHasDHDR) || (pData->bHasJHDR))
MNG_ERROR (pData, MNG_SEQUENCEERROR)
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_SEQUENTIAL ) &&
(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_SEQUENCEERROR)
if (pData->bHasJSEP)
MNG_ERROR (pData, MNG_SEQUENCEERROR)
if (pData->iJHDRalphacompression != MNG_COMPRESSION_BASELINEJPEG)
MNG_ERROR (pData, MNG_SEQUENCEERROR)
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_SEQUENCEERROR)
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_SEQUENCEERROR)
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_SEQUENCEERROR)
#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_SEQUENCEERROR)
/* 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_SEQUENCEERROR)
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_SEQUENCEERROR)
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_SEQUENCEERROR)
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_SEQUENCEERROR)
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_SEQUENCEERROR)
/* 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_SEQUENCEERROR)
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_SEQUENCEERROR)
/* 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_SEQUENCEERROR)
/* 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_SEQUENCEERROR)
/* 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 * */
/* ************************************************************************** */
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