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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 VIDEO_FLICDECODER_H
#define VIDEO_FLICDECODER_H

#include "video/video_decoder.h"
#include "common/list.h"
#include "common/rect.h"

namespace Common {
class SeekableReadStream;
}

namespace Graphics {
struct PixelFormat;
struct Surface;
}

namespace Video {

/**
* Decoder for FLIC videos.
*
* Video decoder used in engines:
* - tucker
*/
class FlicDecoder : public VideoDecoder {
public:
FlicDecoder();
virtual ~FlicDecoder();

bool loadStream(Common::SeekableReadStream *stream);

const Common::List<Common::Rect> *getDirtyRects() const;
void clearDirtyRects();
void copyDirtyRectsToBuffer(uint8 *dst, uint pitch);

private:
class FlicVideoTrack : public VideoTrack {
public:
FlicVideoTrack(Common::SeekableReadStream *stream, uint16 frameCount, uint16 width, uint16 height);
~FlicVideoTrack();

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 _frameCount; }
uint32 getNextFrameStartTime() const { return _nextFrameStartTime; }
const Graphics::Surface *decodeNextFrame();
const byte *getPalette() const { _dirtyPalette = false; return _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;
Graphics::Surface *_surface;

int _curFrame;
bool _atRingFrame;

uint16 _offsetFrame1;
uint16 _offsetFrame2;
byte *_palette;
mutable bool _dirtyPalette;

uint32 _frameCount;
uint32 _frameDelay, _startFrameDelay;
uint32 _nextFrameStartTime;

Common::List<Common::Rect> _dirtyRects;

void decodeByteRun(uint8 *data);
void decodeDeltaFLC(uint8 *data);
void unpackPalette(uint8 *mem);
};
};

} // End of namespace Video

#endif
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