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/*
* This file is part of the Advance project.
*
* Copyright (C) 2002 Andrea Mazzoleni
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __COMPRESS_H
#define __COMPRESS_H
#include "7z/7z.h"
extern "C" {
#include "libdeflate/libdeflate.h"
}
extern "C" {
#include "zopfli/zopfli.h"
}
#if USE_BZIP2
#include <bzlib.h>
#endif
#include <zlib.h>
#define RETRY_FOR_SMALL_FILES 65536 /**< Size for which we try multiple algorithms */
unsigned oversize_deflate(unsigned size);
unsigned oversize_zlib(unsigned size);
bool decompress_deflate_zlib(const unsigned char* in_data, unsigned in_size, unsigned char* out_data, unsigned out_size);
bool compress_deflate_zlib(const unsigned char* in_data, unsigned in_size, unsigned char* out_data, unsigned& out_size, int compression_level, int strategy, int mem_level);
bool decompress_bzip2(const unsigned char* in_data, unsigned in_size, unsigned char* out_data, unsigned out_size);
bool compress_bzip2(const unsigned char* in_data, unsigned in_size, unsigned char* out_data, unsigned& out_size, int blocksize, int workfactor);
bool decompress_rfc1950_zlib(const unsigned char* in_data, unsigned in_size, unsigned char* out_data, unsigned out_size);
bool compress_rfc1950_zlib(const unsigned char* in_data, unsigned in_size, unsigned char* out_data, unsigned& out_size, int compression_level, int strategy, int mem_level);
bool compress_deflate_libdeflate(const unsigned char* in_data, unsigned in_size, unsigned char* out_data, unsigned& out_size, int compression_level);
bool compress_rfc1950_libdeflate(const unsigned char* in_data, unsigned in_size, unsigned char* out_data, unsigned& out_size, int compression_level);
enum shrink_level_t {
shrink_none,
shrink_fast,
shrink_normal,
shrink_extra,
shrink_insane
};
struct shrink_t {
enum shrink_level_t level;
unsigned iter;
};
bool compress_zlib(shrink_t level, unsigned char* out_data, unsigned& out_size, const unsigned char* in_data, unsigned in_size);
bool compress_deflate(shrink_t level, unsigned char* out_data, unsigned& out_size, const unsigned char* in_data, unsigned in_size);
#endif
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