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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 VOYEUR_ANIMATION_H
#define VOYEUR_ANIMATION_H
#include "video/video_decoder.h"
#include "audio/audiostream.h"
#include "audio/mixer.h"
#include "common/list.h"
#include "common/rect.h"
#include "common/stream.h"
namespace Video {
/**
* Decoder for RL2 videos.
*
* Video decoder used in engines:
* - voyeur
*/
class RL2Decoder : public VideoDecoder {
class RL2FileHeader {
public:
uint32 _form;
uint32 _backSize;
uint32 _signature;
uint32 _dataSize;
int _numFrames;
int _method;
int _soundRate;
int _rate;
int _channels;
int _defSoundSize;
int _videoBase;
int _colorCount;
byte _palette[768];
uint32 *_frameOffsets;
int *_frameSoundSizes;
public:
RL2FileHeader();
~RL2FileHeader();
void load(Common::SeekableReadStream *stream);
bool isValid() const;
};
private:
Audio::Mixer::SoundType _soundType;
RL2FileHeader _header;
public:
RL2Decoder(Audio::Mixer::SoundType soundType = Audio::Mixer::kPlainSoundType);
virtual ~RL2Decoder();
bool loadStream(Common::SeekableReadStream *stream);
const Common::List<Common::Rect> *getDirtyRects() const;
void clearDirtyRects();
void copyDirtyRectsToBuffer(uint8 *dst, uint pitch);
private:
class RL2AudioTrack : public AudioTrack {
public:
RL2AudioTrack(const RL2FileHeader &header, Common::SeekableReadStream *stream,
Audio::Mixer::SoundType soundType);
~RL2AudioTrack();
void queueSound(Common::SeekableReadStream *stream, int size);
Audio::Mixer::SoundType getSoundType() const { return _soundType; }
protected:
Audio::AudioStream *getAudioStream() const;
private:
Audio::Mixer::SoundType _soundType;
const RL2FileHeader &_header;
Audio::QueuingAudioStream *_audStream;
Audio::QueuingAudioStream *createAudioStream();
};
class RL2VideoTrack : public VideoTrack {
public:
RL2VideoTrack(const RL2FileHeader &header, RL2AudioTrack *audioTrack,
Common::SeekableReadStream *stream);
~RL2VideoTrack();
bool endOfTrack() const;
bool isRewindable() const { return true; }
bool rewind();
uint16 getWidth() const;
uint16 getHeight() const;
Graphics::PixelFormat getPixelFormat() const;
int getCurFrame() const { return _curFrame; }
int getFrameCount() const { return _header._numFrames; }
uint32 getNextFrameStartTime() const { return _nextFrameStartTime; }
const Graphics::Surface *decodeNextFrame();
const byte *getPalette() const { _dirtyPalette = false; return _header._palette; }
bool hasDirtyPalette() const { return _dirtyPalette; }
const Common::List<Common::Rect> *getDirtyRects() const { return &_dirtyRects; }
void clearDirtyRects() { _dirtyRects.clear(); }
void copyDirtyRectsToBuffer(uint8 *dst, uint pitch);
private:
Common::SeekableReadStream *_fileStream;
const RL2FileHeader &_header;
RL2AudioTrack *_audioTrack;
Graphics::Surface *_surface;
Graphics::Surface *_backSurface;
mutable bool _dirtyPalette;
int _curFrame;
uint32 _videoBase;
uint32 *_frameOffsets;
uint32 _frameDelay;
uint32 _nextFrameStartTime;
Common::List<Common::Rect> _dirtyRects;
void copyFrame(uint8 *data);
void rl2DecodeFrameWithBackground();
void rl2DecodeFrameWithoutBackground(int screenOffset = -1);
};
};
} // End of namespace Video
#endif /* VOYEUR_ANIMATION_H */
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