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60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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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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*
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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, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef CODEC48_H
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#define CODEC48_H
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#include "common/scummsys.h"
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namespace Grim {
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class Codec48Decoder {
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public:
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Codec48Decoder();
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~Codec48Decoder();
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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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private:
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void makeTable(int pitch, int index);
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void bompDecodeLine(byte *dst, const byte *src, int len);
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void decode3(byte *dst, const byte *src, int bufOffset);
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void scaleBlock(byte *dst, const byte *src);
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void copyBlock(byte *dst, int deltaBufOffset, int offset);
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int _curBuf;
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byte *_deltaBuf[2];
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int _blockX, _blockY;
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int _pitch;
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int16 *_offsetTable;
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int _tableLastPitch, _tableLastIndex;
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int16 _prevSeqNb;
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int32 _frameSize;
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int _width, _height;
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byte *_interTable;
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};
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} // end of namespace Grim
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#endif
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