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61 lines
1.6 KiB
C++
61 lines
1.6 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 SMUSH_CODEC_47_H
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#define SMUSH_CODEC_47_H
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#include "common/scummsys.h"
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class Codec47Decoder {
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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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byte *_curBuf;
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int32 _prevSeqNb;
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int _lastTableWidth;
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const byte *_d_src, *_paramPtr;
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int _d_pitch;
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int32 _offset1, _offset2;
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byte *_tableBig;
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byte *_tableSmall;
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int16 _table[256];
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int32 _frameSize;
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int _width, _height;
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void makeTablesInterpolation(int param);
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void makeTables47(int width);
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void level1(byte *d_dst);
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void level2(byte *d_dst);
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void level3(byte *d_dst);
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void decode2(byte *dst, const byte *src, int width, int height, const byte *param_ptr);
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public:
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Codec47Decoder();
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~Codec47Decoder();
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void init(int width, int height);
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void deinit();
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bool decode(byte *dst, const byte *src);
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};
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#endif
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