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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef NANCY_DECOMPRESS_H
#define NANCY_DECOMPRESS_H
#include "common/scummsys.h"
namespace Common {
class ReadStream;
class WriteStream;
class MemoryWriteStream;
}
namespace Nancy {
class Decompressor {
public:
Decompressor();
~Decompressor();
// Decompresses data from input until the end of the stream
// The output stream must have the right size for the decompressed data
bool decompress(Common::SeekableReadStream &input, Common::MemoryWriteStream &output);
private:
enum {
kBufSize = 4096,
kBufStart = 4078
};
void init(Common::SeekableReadStream &input, Common::WriteStream &output);
bool readByte(byte &b);
bool writeByte(byte b);
byte _buf[kBufSize];
uint _bufpos;
bool _err;
byte _val;
Common::WriteStream *_output;
byte *_input;
byte *_pos;
byte *_end;
};
} // End of namespace Nancy
#endif // NANCY_DECOMPRESS_H
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