| 1 | /* ************************************************************************** */
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| 2 | /* * For conditions of distribution and use, * */
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| 3 | /* * see copyright notice in libmng.h * */
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| 4 | /* ************************************************************************** */
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| 5 | /* * * */
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| 6 | /* * project : libmng * */
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| 7 | /* * file : libmng_write.c copyright (c) 2000-2004 G.Juyn * */
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| 8 | /* * version : 1.0.9 * */
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| 9 | /* * * */
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| 10 | /* * purpose : Write management (implementation) * */
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| 11 | /* * * */
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| 12 | /* * author : G.Juyn * */
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| 13 | /* * * */
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| 14 | /* * comment : implementation of the write management routines * */
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| 15 | /* * * */
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| 16 | /* * changes : 0.5.1 - 05/08/2000 - G.Juyn * */
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| 17 | /* * - changed strict-ANSI stuff * */
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| 18 | /* * 0.5.1 - 05/12/2000 - G.Juyn * */
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| 19 | /* * - changed trace to macro for callback error-reporting * */
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| 20 | /* * 0.5.1 - 05/16/2000 - G.Juyn * */
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| 21 | /* * - moved the actual write_graphic functionality from * */
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| 22 | /* * mng_hlapi to its appropriate function here * */
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| 23 | /* * * */
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| 24 | /* * 0.9.1 - 07/19/2000 - G.Juyn * */
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| 25 | /* * - fixed writing of signature * */
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| 26 | /* * * */
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| 27 | /* * 0.9.2 - 08/05/2000 - G.Juyn * */
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| 28 | /* * - changed file-prefixes * */
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| 29 | /* * * */
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| 30 | /* * 1.0.5 - 08/19/2002 - G.Juyn * */
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| 31 | /* * - B597134 - libmng pollutes the linker namespace * */
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| 32 | /* * * */
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| 33 | /* * 1.0.8 - 07/06/2004 - G.R-P * */
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| 34 | /* * - added conditionals around openstream/closestream * */
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| 35 | /* * - defend against using undefined Open/Closestream function * */
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| 36 | /* * 1.0.8 - 08/02/2004 - G.Juyn * */
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| 37 | /* * - added conditional to allow easier writing of large MNG's * */
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| 38 | /* * * */
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| 39 | /* * 1.0.9 - 09/25/2004 - G.Juyn * */
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| 40 | /* * - replaced MNG_TWEAK_LARGE_FILES with permanent solution * */
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| 41 | /* * 1.0.9 - 12/20/2004 - G.Juyn * */
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| 42 | /* * - cleaned up macro-invocations (thanks to D. Airlie) * */
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| 43 | /* * * */
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| 44 | /* ************************************************************************** */
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| 45 |
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| 46 | #include "libmng.h"
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| 47 | #include "libmng_data.h"
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| 48 | #include "libmng_error.h"
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| 49 | #include "libmng_trace.h"
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| 50 | #ifdef __BORLANDC__
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| 51 | #pragma hdrstop
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| 52 | #endif
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| 53 | #include "libmng_memory.h"
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| 54 | #include "libmng_chunks.h"
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| 55 | #include "libmng_chunk_io.h"
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| 56 | #include "libmng_write.h"
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| 57 |
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| 58 | #if defined(__BORLANDC__) && defined(MNG_STRICT_ANSI)
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| 59 | #pragma option -A /* force ANSI-C */
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| 60 | #endif
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| 61 |
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| 62 | /* ************************************************************************** */
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| 63 |
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| 64 | #if defined(MNG_SUPPORT_READ) || defined(MNG_SUPPORT_WRITE)
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| 65 | mng_retcode mng_drop_chunks (mng_datap pData)
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| 66 | {
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| 67 | mng_chunkp pChunk;
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| 68 | mng_chunkp pNext;
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| 69 | mng_cleanupchunk fCleanup;
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| 70 |
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| 71 | #ifdef MNG_SUPPORT_TRACE
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| 72 | MNG_TRACE (pData, MNG_FN_DROP_CHUNKS, MNG_LC_START);
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