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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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef GROOVIE_ROQ_H
#define GROOVIE_ROQ_H
#include "groovie/player.h"
namespace Groovie {
class GroovieEngine;
struct ROQBlockHeader {
uint16 type;
uint32 size;
uint16 param;
};
class ROQPlayer : public VideoPlayer {
public:
ROQPlayer(GroovieEngine *vm);
~ROQPlayer();
protected:
uint16 loadInternal();
bool playFrameInternal();
private:
bool readBlockHeader(ROQBlockHeader &blockHeader);
bool processBlock();
bool processBlockInfo(ROQBlockHeader &blockHeader);
bool processBlockQuadCodebook(ROQBlockHeader &blockHeader);
bool processBlockQuadVector(ROQBlockHeader &blockHeader);
void processBlockQuadVectorBlock(int baseX, int baseY, int8 Mx, int8 My);
void processBlockQuadVectorBlockSub(int baseX, int baseY, int8 Mx, int8 My);
bool processBlockStill(ROQBlockHeader &blockHeader);
bool processBlockSoundMono(ROQBlockHeader &blockHeader);
bool processBlockSoundStereo(ROQBlockHeader &blockHeader);
bool processBlockAudioContainer(ROQBlockHeader &blockHeader);
bool playFirstFrame() { return _alpha && !_flagTwo; }
void paint2(byte i, int destx, int desty);
void paint4(byte i, int destx, int desty);
void paint8(byte i, int destx, int desty);
void copy(byte size, int destx, int desty, int offx, int offy);
// Block coding type
byte getCodingType();
uint16 _codingType;
byte _codingTypeCount;
// Codebooks
uint16 _num2blocks;
uint16 _num4blocks;
uint32 _codebook2[256 * 4];
byte _codebook4[256 * 4];
// Flags
bool _flagTwo;
// Buffers
Graphics::Surface *_fg, *_bg;
Graphics::Surface *_currBuf, *_prevBuf;
void buildShowBuf();
byte _scaleX, _scaleY;
byte _offScale;
bool _dirty;
byte _alpha;
bool _firstFrame;
};
} // End of Groovie namespace
#endif // GROOVIE_ROQ_H
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