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author | axis <qt-info@nokia.com> | 2009-04-24 11:34:15 (GMT) |
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committer | axis <qt-info@nokia.com> | 2009-04-24 11:34:15 (GMT) |
commit | 8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76 (patch) | |
tree | a17e1a767a89542ab59907462206d7dcf2e504b2 /src/3rdparty/libmng/libmng_write.c | |
download | Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.zip Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.tar.gz Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.tar.bz2 |
Long live Qt for S60!
Diffstat (limited to 'src/3rdparty/libmng/libmng_write.c')
-rw-r--r-- | src/3rdparty/libmng/libmng_write.c | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/src/3rdparty/libmng/libmng_write.c b/src/3rdparty/libmng/libmng_write.c new file mode 100644 index 0000000..79ff544 --- /dev/null +++ b/src/3rdparty/libmng/libmng_write.c @@ -0,0 +1,198 @@ +/* ************************************************************************** */ +/* * For conditions of distribution and use, * */ +/* * see copyright notice in libmng.h * */ +/* ************************************************************************** */ +/* * * */ +/* * project : libmng * */ +/* * file : libmng_write.c copyright (c) 2000-2004 G.Juyn * */ +/* * version : 1.0.9 * */ +/* * * */ +/* * purpose : Write management (implementation) * */ +/* * * */ +/* * author : G.Juyn * */ +/* * * */ +/* * comment : implementation of the write management routines * */ +/* * * */ +/* * changes : 0.5.1 - 05/08/2000 - G.Juyn * */ +/* * - changed strict-ANSI stuff * */ +/* * 0.5.1 - 05/12/2000 - G.Juyn * */ +/* * - changed trace to macro for callback error-reporting * */ +/* * 0.5.1 - 05/16/2000 - G.Juyn * */ +/* * - moved the actual write_graphic functionality from * */ +/* * mng_hlapi to its appropriate function here * */ +/* * * */ +/* * 0.9.1 - 07/19/2000 - G.Juyn * */ +/* * - fixed writing of signature * */ +/* * * */ +/* * 0.9.2 - 08/05/2000 - G.Juyn * */ +/* * - changed file-prefixes * */ +/* * * */ +/* * 1.0.5 - 08/19/2002 - G.Juyn * */ +/* * - B597134 - libmng pollutes the linker namespace * */ +/* * * */ +/* * 1.0.8 - 07/06/2004 - G.R-P * */ +/* * - added conditionals around openstream/closestream * */ +/* * - defend against using undefined Open/Closestream function * */ +/* * 1.0.8 - 08/02/2004 - G.Juyn * */ +/* * - added conditional to allow easier writing of large MNG's * */ +/* * * */ +/* * 1.0.9 - 09/25/2004 - G.Juyn * */ +/* * - replaced MNG_TWEAK_LARGE_FILES with permanent solution * */ +/* * 1.0.9 - 12/20/2004 - G.Juyn * */ +/* * - cleaned up macro-invocations (thanks to D. Airlie) * */ +/* * * */ +/* ************************************************************************** */ + +#include "libmng.h" +#include "libmng_data.h" +#include "libmng_error.h" +#include "libmng_trace.h" +#ifdef __BORLANDC__ +#pragma hdrstop +#endif +#include "libmng_memory.h" +#include "libmng_chunks.h" +#include "libmng_chunk_io.h" +#include "libmng_write.h" + +#if defined(__BORLANDC__) && defined(MNG_STRICT_ANSI) +#pragma option -A /* force ANSI-C */ +#endif + +/* ************************************************************************** */ + +#if defined(MNG_SUPPORT_READ) || defined(MNG_SUPPORT_WRITE) +mng_retcode mng_drop_chunks (mng_datap pData) +{ + mng_chunkp pChunk; + mng_chunkp pNext; + mng_cleanupchunk fCleanup; + +#ifdef MNG_SUPPORT_TRACE + MNG_TRACE (pData, MNG_FN_DROP_CHUNKS, MNG_LC_START); +#endif + + pChunk = pData->pFirstchunk; /* and get first stored chunk (if any) */ + + while (pChunk) /* more chunks to discard ? */ + { + pNext = ((mng_chunk_headerp)pChunk)->pNext; + /* call appropriate cleanup */ + fCleanup = ((mng_chunk_headerp)pChunk)->fCleanup; + fCleanup (pData, pChunk); + + pChunk = pNext; /* neeeext */ + } + + pData->pFirstchunk = MNG_NULL; + pData->pLastchunk = MNG_NULL; + +#ifdef MNG_SUPPORT_TRACE + MNG_TRACE (pData, MNG_FN_DROP_CHUNKS, MNG_LC_END); +#endif + + return MNG_NOERROR; +} +#endif /* MNG_SUPPORT_READ || MNG_SUPPORT_WRITE */ + +/* ************************************************************************** */ + +#ifdef MNG_INCLUDE_WRITE_PROCS + +/* ************************************************************************** */ + +mng_retcode mng_write_graphic (mng_datap pData) +{ + mng_chunkp pChunk; + mng_retcode iRetcode; + mng_uint32 iWritten; + +#ifdef MNG_SUPPORT_TRACE + MNG_TRACE (pData, MNG_FN_WRITE_GRAPHIC, MNG_LC_START); +#endif + + pChunk = pData->pFirstchunk; /* we'll start with the first, thank you */ + + if (pChunk) /* is there anything to write ? */ + { /* open the file */ + if (!pData->bWriting) + { +#ifndef MNG_NO_OPEN_CLOSE_STREAM + if (pData->fOpenstream && !pData->fOpenstream ((mng_handle)pData)) + MNG_ERROR (pData, MNG_APPIOERROR); +#endif + { + pData->bWriting = MNG_TRUE; /* indicate writing */ + pData->iWritebufsize = 32768; /* get a temporary write buffer */ + /* reserve 12 bytes for length, chunkname & crc */ + MNG_ALLOC (pData, pData->pWritebuf, pData->iWritebufsize+12); + + /* write the signature */ + if (((mng_chunk_headerp)pChunk)->iChunkname == MNG_UINT_IHDR) + mng_put_uint32 (pData->pWritebuf, PNG_SIG); + else + if (((mng_chunk_headerp)pChunk)->iChunkname == MNG_UINT_JHDR) + mng_put_uint32 (pData->pWritebuf, JNG_SIG); + else + mng_put_uint32 (pData->pWritebuf, MNG_SIG); + + mng_put_uint32 (pData->pWritebuf+4, POST_SIG); + + if (!pData->fWritedata ((mng_handle)pData, pData->pWritebuf, 8, &iWritten)) + { + MNG_FREE (pData, pData->pWritebuf, pData->iWritebufsize+12); + MNG_ERROR (pData, MNG_APPIOERROR); + } + + if (iWritten != 8) /* disk full ? */ + { + MNG_FREE (pData, pData->pWritebuf, pData->iWritebufsize+12); + MNG_ERROR (pData, MNG_OUTPUTERROR); + } + } + } + + while (pChunk) /* so long as there's something to write */ + { /* let's call its output routine */ + iRetcode = ((mng_chunk_headerp)pChunk)->fWrite (pData, pChunk); + if (iRetcode) /* on error bail out */ + return iRetcode; + /* neeeext */ + pChunk = ((mng_chunk_headerp)pChunk)->pNext; + } + + if (!pData->bCreating) + { /* free the temporary buffer */ + MNG_FREE (pData, pData->pWritebuf, pData->iWritebufsize+12); + + pData->bWriting = MNG_FALSE; /* done writing */ + /* close the stream now */ +#ifndef MNG_NO_OPEN_CLOSE_STREAM + if (pData->fClosestream && !pData->fClosestream ((mng_handle)pData)) + MNG_ERROR (pData, MNG_APPIOERROR); +#endif + + } else { + /* cleanup the written chunks */ + iRetcode = mng_drop_chunks (pData); + if (iRetcode) /* on error bail out */ + return iRetcode; + } + } + +#ifdef MNG_SUPPORT_TRACE + MNG_TRACE (pData, MNG_FN_WRITE_GRAPHIC, MNG_LC_END); +#endif + + return MNG_NOERROR; +} + +/* ************************************************************************** */ + +#endif /* MNG_INCLUDE_WRITE_PROCS */ + +/* ************************************************************************** */ +/* * end of file * */ +/* ************************************************************************** */ + + |