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/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2003 The ScummVM project
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#ifndef CODEC37_H
#define CODEC37_H
#include "decoder.h"
class Codec37Decoder : public Decoder {
private:
int32 _deltaSize;
byte *_deltaBufs[2];
byte *_deltaBuf;
int16 *_offsetTable;
int32 _curtable;
uint16 _prevSeqNb;
int32 _tableLastPitch;
int32 _tableLastIndex;
public:
bool initSize(const Point &, const Rect &);
Codec37Decoder();
void clean();
virtual ~Codec37Decoder();
protected:
void maketable(int32, int32);
void bompDecode(byte *dst, byte *src, int32 len);
void proc3WithFDFE(byte *, byte *, int32, int32, int32, int32, int16 *);
void proc3WithoutFDFE(byte *, byte *, int32, int32, int32, int32, int16 *);
void proc4WithFDFE(byte *, byte *, int32, int32, int32, int32, int16 *);
void proc4WithoutFDFE(byte *, byte *, int32, int32, int32, int32, int16 *);
public:
bool decode(Blitter &, Chunk &);
};
#endif
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