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102 lines
2.8 KiB
C++
102 lines
2.8 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#ifndef VIDEO_FLICDECODER_H
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#define VIDEO_FLICDECODER_H
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#include "video/video_decoder.h"
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#include "common/list.h"
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#include "common/rect.h"
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namespace Common {
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class SeekableReadStream;
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}
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namespace Video {
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/**
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* Decoder for FLIC videos.
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*
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* Video decoder used in engines:
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* - tucker
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*/
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class FlicDecoder : public FixedRateVideoDecoder {
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public:
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FlicDecoder();
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virtual ~FlicDecoder();
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/**
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* Load a video file
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* @param stream the stream to load
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*/
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bool loadStream(Common::SeekableReadStream *stream);
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void close();
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/**
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* Decode the next frame and return the frame's surface
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* @note the return surface should *not* be freed
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* @note this may return 0, in which case the last frame should be kept on screen
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*/
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const Graphics::Surface *decodeNextFrame();
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bool isVideoLoaded() const { return _fileStream != 0; }
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uint16 getWidth() const { return _surface->w; }
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uint16 getHeight() const { return _surface->h; }
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uint32 getFrameCount() const { return _frameCount; }
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Graphics::PixelFormat getPixelFormat() const { return Graphics::PixelFormat::createFormatCLUT8(); }
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const Common::List<Common::Rect> *getDirtyRects() const { return &_dirtyRects; }
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void clearDirtyRects() { _dirtyRects.clear(); }
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void copyDirtyRectsToBuffer(uint8 *dst, uint pitch);
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const byte *getPalette() { _paletteChanged = false; return _palette; }
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bool hasDirtyPalette() const { return _paletteChanged; }
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void reset();
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protected:
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Common::Rational getFrameRate() const { return _frameRate; }
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private:
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uint16 _offsetFrame1;
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uint16 _offsetFrame2;
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byte *_palette;
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bool _paletteChanged;
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void decodeByteRun(uint8 *data);
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void decodeDeltaFLC(uint8 *data);
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void unpackPalette(uint8 *mem);
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Common::SeekableReadStream *_fileStream;
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Graphics::Surface *_surface;
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uint32 _frameCount;
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Common::Rational _frameRate;
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Common::List<Common::Rect> _dirtyRects;
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};
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} // End of namespace Video
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#endif
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