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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/array.h"
#include "common/list.h"
#include "common/rect.h"
#include "common/stream.h"
#include "voyeur/files.h"
namespace Audio {
class Timestamp;
}
namespace Voyeur {
class VoyeurEngine;
/**
* Decoder for RL2 videos.
*
* Video decoder used in engines:
* - voyeur
*/
class RL2Decoder : public Video::VideoDecoder {
private:
class RL2FileHeader {
public:
RL2FileHeader();
~RL2FileHeader();
int _channels;
int _colorCount;
int _numFrames;
int _rate;
int _soundRate;
int _videoBase;
int *_frameSoundSizes;
uint32 _backSize;
uint32 _signature;
uint32 *_frameOffsets;
byte _palette[768];
void load(Common::SeekableReadStream *stream);
Common::Rational getFrameRate() const;
bool isValid() const;
private:
uint32 _form; // Unused variable
uint32 _dataSize; // Unused variable
int _method; // Unused variable
int _defSoundSize;
};
class SoundFrame {
public:
int _offset;
int _size;
SoundFrame(int offset, int size);
};
class RL2AudioTrack : public AudioTrack {
private:
const RL2FileHeader &_header;
Audio::QueuingAudioStream *_audStream;
protected:
Audio::AudioStream *getAudioStream() const;
public:
RL2AudioTrack(const RL2FileHeader &header, Common::SeekableReadStream *stream,
Audio::Mixer::SoundType soundType);
~RL2AudioTrack();
int numQueuedStreams() const { return _audStream->numQueuedStreams(); }
virtual bool isSeekable() const { return true; }
virtual bool seek(const Audio::Timestamp &time) { return true; }
void queueSound(Common::SeekableReadStream *stream, int size);
};
class RL2VideoTrack : public FixedRateVideoTrack {
public:
RL2VideoTrack(const RL2FileHeader &header, RL2AudioTrack *audioTrack,
Common::SeekableReadStream *stream);
~RL2VideoTrack();
uint16 getWidth() const;
uint16 getHeight() const;
Graphics::Surface *getSurface() { return _surface; }
Graphics::Surface *getBackSurface();
Graphics::PixelFormat getPixelFormat() const;
int getCurFrame() const { return _curFrame; }
int getFrameCount() const { return _header._numFrames; }
const Graphics::Surface *decodeNextFrame();
const byte *getPalette() const { _dirtyPalette = false; return _header._palette; }
int getPaletteCount() const { return _header._colorCount; }
bool hasDirtyPalette() const { return _dirtyPalette; }
const Common::List<Common::Rect> *getDirtyRects() const { return &_dirtyRects; }
void clearDirtyRects() { _dirtyRects.clear(); }
void copyDirtyRectsToBuffer(uint8 *dst, uint pitch);
virtual Common::Rational getFrameRate() const { return _header.getFrameRate(); }
virtual bool isSeekable() const { return true; }
virtual bool seek(const Audio::Timestamp &time);
private:
Common::SeekableReadStream *_fileStream;
const RL2FileHeader &_header;
Graphics::Surface *_surface;
Graphics::Surface *_backSurface;
bool _hasBackFrame;
mutable bool _dirtyPalette;
bool _initialFrame;
int _curFrame;
uint32 _videoBase;
uint32 *_frameOffsets;
Common::List<Common::Rect> _dirtyRects;
void copyFrame(uint8 *data);
void rl2DecodeFrameWithTransparency(int screenOffset);
void rl2DecodeFrameWithoutTransparency(int screenOffset = -1);
void initBackSurface();
};
private:
RL2AudioTrack *_audioTrack;
RL2VideoTrack *_videoTrack;
Common::SeekableReadStream *_fileStream;
RL2FileHeader _header;
int _paletteStart;
Common::Array<SoundFrame> _soundFrames;
int _soundFrameNumber;
const Common::List<Common::Rect> *getDirtyRects() const;
void clearDirtyRects();
void copyDirtyRectsToBuffer(uint8 *dst, uint pitch);
int getPaletteStart() const { return _paletteStart; }
const RL2FileHeader &getHeader() { return _header; }
virtual void readNextPacket();
virtual bool seekIntern(const Audio::Timestamp &time);
public:
RL2Decoder();
virtual ~RL2Decoder();
virtual void close();
bool loadStream(Common::SeekableReadStream *stream);
bool loadRL2File(const Common::String &file, bool palFlag);
bool loadVideo(int videoId);
int getPaletteCount() const { return _header._colorCount; }
/**
* Play back a given Voyeur RL2 video
* @param vm Engine reference
* @param resourceOffset Starting resource to use for frame pictures
* @param frames Optional frame numbers resource for when to apply image data
* @param imgPos Position to draw image data
*/
void play(VoyeurEngine *vm, int resourceOffset = 0, byte *frames = NULL, byte *imgPos = NULL);
RL2VideoTrack *getRL2VideoTrack() { return _videoTrack; }
RL2AudioTrack *getRL2AudioTrack() { return _audioTrack; }
};
} // End of namespace Voyeur
#endif /* VOYEUR_ANIMATION_H */
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