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55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2002-2003 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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#ifndef CODEC37_H
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#define CODEC37_H
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#include "decoder.h"
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class Codec37Decoder : public Decoder {
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private:
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int32 _deltaSize;
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byte *_deltaBufs[2];
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byte *_deltaBuf;
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int16 *_offsetTable;
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int32 _curtable;
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uint16 _prevSeqNb;
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int32 _tableLastPitch;
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int32 _tableLastIndex;
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public:
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bool initSize(const Point &, const Rect &);
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Codec37Decoder();
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void clean();
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virtual ~Codec37Decoder();
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protected:
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void maketable(int32, int32);
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void bompDecode(byte *dst, const byte *src, int len);
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void proc3WithFDFE(byte *dst, const byte *src, int32, int32, int32, int32, int16 *);
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void proc3WithoutFDFE(byte *dst, const byte *src, int32, int32, int32, int32, int16 *);
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void proc4WithFDFE(byte *dst, const byte *src, int32, int32, int32, int32, int16 *);
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void proc4WithoutFDFE(byte *dst, const byte *src, int32, int32, int32, int32, int16 *);
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public:
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bool decode(byte *dst, const byte *src, int length);
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};
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#endif
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