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/***************************************************************************
* Copyright (C) 2005-2019 by the FIFE team *
* http://www.fifengine.net *
* This file is part of FIFE. *
* *
* FIFE is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public *
* License as published by the Free Software Foundation; either *
* version 2.1 of the License, or (at your option) any later version. *
* *
* This library 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
***************************************************************************/
#ifndef FIFE_LZSSDECODER_H
#define FIFE_LZSSDECODER_H
// Standard C++ library includes
// 3rd party library includes
// FIFE includes
#include "util/base/fife_stdint.h"
#include "vfs/vfs.h"
namespace FIFE {
/** A helper class for unpacking LZSS encoded data
* @bug just a quick&dirty LZSS implementation, optimized a bit
* see revision 719 for the original one and 795 for the broken optimized one
* @bug the lzss decoder might very well crash on corrupt data.
*/
class LZSSDecoder {
public:
/** Constructor
*/
LZSSDecoder();
/** Destructor
*/
~LZSSDecoder();
/** Decodes from a file into a pointer.
* @param input The VFS file to read from
* @param output The memory location to write to
* @param outputsize The size of the memory location in byte
*/
void decode(RawData* input, uint8_t* output, const uint32_t outputsize);
private:
uint32_t m_outlen;
uint32_t m_outindex;
void LZSSDecode(uint8_t* in, int64_t len, uint8_t* out);
};
}
#endif
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