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/** \file
* \brief Data Compression Utilities
*
* See Copyright Notice in im_lib.h
* $Id: im_compress.cpp,v 1.1 2008/10/17 06:10:16 scuri Exp $
*/
#include <math.h>
#include "im_util.h"
#include "zlib.h"
extern "C" {
#include "lzf.h"
}
int imCompressDataZ(const void* src_data, int src_size, void* dst_data, int dst_size, int zip_quality)
{
uLongf ret_size = (uLongf)dst_size;
if (compress2((Bytef*)dst_data, &ret_size, (const Bytef*)src_data, src_size, zip_quality) != Z_OK)
return 0;
return (int)ret_size;
}
int imCompressDataUnZ(const void* src_data, int src_size, void* dst_data, int dst_size)
{
uLongf ret_size = (uLongf)dst_size;
if (uncompress((Bytef*)dst_data, &ret_size, (const Bytef*)src_data, src_size) != Z_OK)
return 0;
return (int)ret_size;
}
int imCompressDataLZF(const void* src_data, int src_size, void* dst_data, int dst_size)
{
return lzf_compress(src_data, src_size, dst_data, dst_size);
}
int imCompressDataUnLZF(const void* src_data, int src_size, void* dst_data, int dst_size)
{
return lzf_decompress(src_data, src_size, dst_data, dst_size);
}
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