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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.
*
* $URL$
* $Id$
*
*/
#ifndef VIDEO_FLICDECODER_H
#define VIDEO_FLICDECODER_H
#include "video/video_decoder.h"
#include "common/list.h"
#include "common/rational.h"
#include "graphics/pixelformat.h"
#include "graphics/surface.h"
namespace Common {
struct Rect;
class SeekableReadStream;
}
namespace Video {
/**
* Decoder for FLIC videos.
*
* Video decoder used in engines:
* - tucker
*/
class FlicDecoder : public FixedRateVideoDecoder {
public:
FlicDecoder();
virtual ~FlicDecoder();
/**
* Load a video file
* @param stream the stream to load
*/
bool loadStream(Common::SeekableReadStream *stream);
void close();
/**
* Decode the next frame and return the frame's surface
* @note the return surface should *not* be freed
* @note this may return 0, in which case the last frame should be kept on screen
*/
const Graphics::Surface *decodeNextFrame();
bool isVideoLoaded() const { return _fileStream != 0; }
uint16 getWidth() const { return _surface->w; }
uint16 getHeight() const { return _surface->h; }
uint32 getFrameCount() const { return _frameCount; }
Graphics::PixelFormat getPixelFormat() const { return Graphics::PixelFormat::createFormatCLUT8(); }
const Common::List<Common::Rect> *getDirtyRects() const { return &_dirtyRects; }
void clearDirtyRects() { _dirtyRects.clear(); }
void copyDirtyRectsToBuffer(uint8 *dst, uint pitch);
const byte *getPalette() { _paletteChanged = false; return _palette; }
bool hasDirtyPalette() const { return _paletteChanged; }
void reset();
protected:
Common::Rational getFrameRate() const { return _frameRate; }
private:
uint16 _offsetFrame1;
uint16 _offsetFrame2;
byte *_palette;
bool _paletteChanged;
void decodeByteRun(uint8 *data);
void decodeDeltaFLC(uint8 *data);
void unpackPalette(uint8 *mem);
Common::SeekableReadStream *_fileStream;
Graphics::Surface *_surface;
uint32 _frameCount;
Common::Rational _frameRate;
Common::List<Common::Rect> _dirtyRects;
};
} // End of namespace Video
#endif
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