diff options
Diffstat (limited to 'tqtinterface/qt4/src/3rdparty/libmng/libmng_write.c')
| -rw-r--r-- | tqtinterface/qt4/src/3rdparty/libmng/libmng_write.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/tqtinterface/qt4/src/3rdparty/libmng/libmng_write.c b/tqtinterface/qt4/src/3rdparty/libmng/libmng_write.c new file mode 100644 index 0000000..07a530f --- /dev/null +++ b/tqtinterface/qt4/src/3rdparty/libmng/libmng_write.c @@ -0,0 +1,139 @@ +/* ************************************************************************** */ +/* * For conditions of distribution and use, * */ +/* * see copyright notice in libmng.h * */ +/* ************************************************************************** */ +/* * * */ +/* * project : libmng * */ +/* * file : libmng_write.c copyright (c) 2000 G.Juyn * */ +/* * version : 1.0.0 * */ +/* * * */ +/* * purpose : Write management (implementation) * */ +/* * * */ +/* * author : G.Juyn * */ +/* * web : http://www.3-t.com * */ +/* * email : mailto:info@3-t.com * */ +/* * * */ +/* * 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 it's 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 * */ +/* * * */ +/* ************************************************************************** */ + +#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 + +/* ************************************************************************** */ + +#ifdef MNG_INCLUDE_WRITE_PROCS + +/* ************************************************************************** */ + +mng_retcode 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->fOpenstream ((mng_handle)pData)) + MNG_ERROR (pData, MNG_APPIOERROR) + else + { + 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 it's output routine */ + iRetcode = ((mng_chunk_headerp)pChunk)->fWrite (pData, pChunk); + + if (iRetcode) /* on error bail out */ + { + MNG_FREE (pData, pData->pWritebuf, pData->iWritebufsize+12) + return iRetcode; + } + /* neeeext */ + pChunk = ((mng_chunk_headerp)pChunk)->pNext; + } + /* free the temporary buffer */ + MNG_FREE (pData, pData->pWritebuf, pData->iWritebufsize+12) + + pData->bWriting = MNG_FALSE; /* done writing */ + /* close the stream now */ + if (!pData->fClosestream ((mng_handle)pData)) + MNG_ERROR (pData, MNG_APPIOERROR) + + } + } + +#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 * */ +/* ************************************************************************** */ + + |