diff -r bf6a71c50e42 -r 09fa7c3c5079 stdlibs/libz/zlib/compress.cpp --- a/stdlibs/libz/zlib/compress.cpp Wed Aug 18 11:27:44 2010 +0300 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,99 +0,0 @@ -/* compress.cpp -- compress a memory buffer - * Copyright (C) 1995-2003 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id: compress.cpp,v 1.1.2.1 2008/08/14 15:26:57 e0222316 Exp $ */ - -#define ZLIB_INTERNAL -#include "libzcore.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. -*/ - -#ifdef __SYMBIAN32__ -EXPORT_C int compress2_r (Bytef * dest, uLongf * destLen,const Bytef * source,uLong sourceLen,int level) -#else -int ZEXPORT compress2 (dest, destLen, source, sourceLen, level) - Bytef *dest; - uLongf *destLen; - const Bytef *source; - uLong sourceLen; - int level; -#endif //__SYMBIAN32__ -{ - 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_r(&stream, level); - if (err != Z_OK) return err; - - err = deflate_r(&stream, Z_FINISH); - if (err != Z_STREAM_END) { - deflateEnd_r(&stream); - return err == Z_OK ? Z_BUF_ERROR : err; - } - *destLen = stream.total_out; - - err = deflateEnd_r(&stream); - return err; -} - -/* =========================================================================== - */ - -#ifdef __SYMBIAN32__ -EXPORT_C int compress_r (Bytef * dest, uLongf * destLen, const Bytef * source, uLong sourceLen) -#else -int ZEXPORT compress (dest, destLen, source, sourceLen) - Bytef *dest; - uLongf *destLen; - const Bytef *source; - uLong sourceLen; -#endif //__SYMBIAN32__ -{ - return compress2_r(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION); -} - - -/* =========================================================================== - If the default memLevel or windowBits for deflateInit() is changed, then - this function needs to be updated. - */ - - -#ifdef __SYMBIAN32__ -EXPORT_C uLong compressBound_r (uLong sourceLen) -#else -uLong ZEXPORT compressBound (sourceLen) - uLong sourceLen; -#endif //__SYMBIAN32__ -{ - return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + 11; -} - - -