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author | Dimitri van Heesch <dimitri@stack.nl> | 2009-08-14 14:49:07 (GMT) |
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committer | Dimitri van Heesch <dimitri@stack.nl> | 2009-08-14 14:49:07 (GMT) |
commit | 8c6ca30831818a77a6947baad63ab99cb8cd8c31 (patch) | |
tree | fed426d0d7216311cbd009a1fcd2786176478b5e /libpng/compress.c | |
parent | 142b4807d2ae7479691bd0800d28364b9857b82f (diff) | |
download | Doxygen-8c6ca30831818a77a6947baad63ab99cb8cd8c31.zip Doxygen-8c6ca30831818a77a6947baad63ab99cb8cd8c31.tar.gz Doxygen-8c6ca30831818a77a6947baad63ab99cb8cd8c31.tar.bz2 |
Release-1.5.9-20090814
Diffstat (limited to 'libpng/compress.c')
-rw-r--r-- | libpng/compress.c | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/libpng/compress.c b/libpng/compress.c deleted file mode 100644 index df04f01..0000000 --- a/libpng/compress.c +++ /dev/null @@ -1,79 +0,0 @@ -/* compress.c -- compress a memory buffer - * Copyright (C) 1995-2003 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#define ZLIB_INTERNAL -#include "zlib.h" - -/* =========================================================================== - Compresses the source buffer into the destination buffer. The level - parameter has the same meaning as in deflateInit. sourceLen is the byte - length of the source buffer. Upon entry, destLen is the total size of the - destination buffer, which must be at least 0.1% larger than sourceLen plus - 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. - - compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_BUF_ERROR if there was not enough room in the output buffer, - Z_STREAM_ERROR if the level parameter is invalid. -*/ -int ZEXPORT compress2 (dest, destLen, source, sourceLen, level) - Bytef *dest; - uLongf *destLen; - const Bytef *source; - uLong sourceLen; - int level; -{ - z_stream stream; - int err; - - stream.next_in = (Bytef*)source; - stream.avail_in = (uInt)sourceLen; -#ifdef MAXSEG_64K - /* Check for source > 64K on 16-bit machine: */ - if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; -#endif - stream.next_out = dest; - stream.avail_out = (uInt)*destLen; - if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR; - - stream.zalloc = (alloc_func)0; - stream.zfree = (free_func)0; - stream.opaque = (voidpf)0; - - err = deflateInit(&stream, level); - if (err != Z_OK) return err; - - err = deflate(&stream, Z_FINISH); - if (err != Z_STREAM_END) { - deflateEnd(&stream); - return err == Z_OK ? Z_BUF_ERROR : err; - } - *destLen = stream.total_out; - - err = deflateEnd(&stream); - return err; -} - -/* =========================================================================== - */ -int ZEXPORT compress (dest, destLen, source, sourceLen) - Bytef *dest; - uLongf *destLen; - const Bytef *source; - uLong sourceLen; -{ - return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION); -} - -/* =========================================================================== - If the default memLevel or windowBits for deflateInit() is changed, then - this function needs to be updated. - */ -uLong ZEXPORT compressBound (sourceLen) - uLong sourceLen; -{ - return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + 11; -} |