1.1 --- a/sourcepawn/compiler/zlib/compress.c Fri Jul 11 06:51:21 2008 +0000
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,79 +0,0 @@
1.4 -/* compress.c -- compress a memory buffer
1.5 - * Copyright (C) 1995-2003 Jean-loup Gailly.
1.6 - * For conditions of distribution and use, see copyright notice in zlib.h
1.7 - */
1.8 -
1.9 -/* @(#) $Id$ */
1.10 -
1.11 -#define ZLIB_INTERNAL
1.12 -#include "zlib.h"
1.13 -
1.14 -/* ===========================================================================
1.15 - Compresses the source buffer into the destination buffer. The level
1.16 - parameter has the same meaning as in deflateInit. sourceLen is the byte
1.17 - length of the source buffer. Upon entry, destLen is the total size of the
1.18 - destination buffer, which must be at least 0.1% larger than sourceLen plus
1.19 - 12 bytes. Upon exit, destLen is the actual size of the compressed buffer.
1.20 -
1.21 - compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
1.22 - memory, Z_BUF_ERROR if there was not enough room in the output buffer,
1.23 - Z_STREAM_ERROR if the level parameter is invalid.
1.24 -*/
1.25 -int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
1.26 - Bytef *dest;
1.27 - uLongf *destLen;
1.28 - const Bytef *source;
1.29 - uLong sourceLen;
1.30 - int level;
1.31 -{
1.32 - z_stream stream;
1.33 - int err;
1.34 -
1.35 - stream.next_in = (Bytef*)source;
1.36 - stream.avail_in = (uInt)sourceLen;
1.37 -#ifdef MAXSEG_64K
1.38 - /* Check for source > 64K on 16-bit machine: */
1.39 - if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;
1.40 -#endif
1.41 - stream.next_out = dest;
1.42 - stream.avail_out = (uInt)*destLen;
1.43 - if ((uLong)stream.avail_out != *destLen) return Z_BUF_ERROR;
1.44 -
1.45 - stream.zalloc = (alloc_func)0;
1.46 - stream.zfree = (free_func)0;
1.47 - stream.opaque = (voidpf)0;
1.48 -
1.49 - err = deflateInit(&stream, level);
1.50 - if (err != Z_OK) return err;
1.51 -
1.52 - err = deflate(&stream, Z_FINISH);
1.53 - if (err != Z_STREAM_END) {
1.54 - deflateEnd(&stream);
1.55 - return err == Z_OK ? Z_BUF_ERROR : err;
1.56 - }
1.57 - *destLen = stream.total_out;
1.58 -
1.59 - err = deflateEnd(&stream);
1.60 - return err;
1.61 -}
1.62 -
1.63 -/* ===========================================================================
1.64 - */
1.65 -int ZEXPORT compress (dest, destLen, source, sourceLen)
1.66 - Bytef *dest;
1.67 - uLongf *destLen;
1.68 - const Bytef *source;
1.69 - uLong sourceLen;
1.70 -{
1.71 - return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION);
1.72 -}
1.73 -
1.74 -/* ===========================================================================
1.75 - If the default memLevel or windowBits for deflateInit() is changed, then
1.76 - this function needs to be updated.
1.77 - */
1.78 -uLong ZEXPORT compressBound (sourceLen)
1.79 - uLong sourceLen;
1.80 -{
1.81 - return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + 11;
1.82 -}