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127 lines
3.5 KiB
C++
127 lines
3.5 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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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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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*
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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, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef VIDEO_PACODECODER_H
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#define VIDEO_PACODECODER_H
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#include "audio/audiostream.h"
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#include "common/list.h"
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#include "common/rect.h"
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#include "video/video_decoder.h"
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namespace Common {
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class SeekableReadStream;
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}
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namespace Graphics {
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struct PixelFormat;
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struct Surface;
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} // namespace Graphics
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namespace Video {
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/**
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* Decoder for PACo videos.
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*
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* Video decoder used in engines:
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* - director
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*/
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class PacoDecoder : public VideoDecoder {
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public:
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PacoDecoder();
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virtual ~PacoDecoder();
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virtual bool loadStream(Common::SeekableReadStream *stream) override;
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const Common::List<Common::Rect> *getDirtyRects() const;
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void clearDirtyRects();
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void copyDirtyRectsToBuffer(uint8 *dst, uint pitch);
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const byte *getPalette();
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virtual void readNextPacket() override;
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protected:
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class PacoVideoTrack : public FixedRateVideoTrack {
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public:
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PacoVideoTrack(
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uint16 frameRate, uint16 frameCount, uint16 width, uint16 height);
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~PacoVideoTrack();
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bool endOfTrack() const override;
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virtual bool isRewindable() const override { return false; }
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uint16 getWidth() const override;
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uint16 getHeight() const override;
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Graphics::PixelFormat getPixelFormat() const override;
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int getCurFrame() const override { return _curFrame; }
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int getFrameCount() const override { return _frameCount; }
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virtual const Graphics::Surface *decodeNextFrame() override;
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virtual void handleFrame(Common::SeekableReadStream *fileStream, uint32 chunkSize, int curFrame);
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void handlePalette(Common::SeekableReadStream *fileStream);
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const byte *getPalette() const override;
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bool hasDirtyPalette() const override { return _dirtyPalette; }
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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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Common::Rational getFrameRate() const override { return Common::Rational(_frameRate, 1); }
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protected:
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Graphics::Surface *_surface;
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byte *_palette;
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mutable bool _dirtyPalette;
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int _curFrame;
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uint32 _frameCount;
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uint32 _frameDelay;
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uint16 _frameRate;
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Common::List<Common::Rect> _dirtyRects;
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};
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class PacoAudioTrack : public AudioTrack {
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public:
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PacoAudioTrack(int samplingRate);
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void queueSound(Common::SeekableReadStream *fileStream, uint32 chunkSize);
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protected:
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Audio::AudioStream *getAudioStream() const { return _packetStream; }
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private:
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Audio::PacketizedAudioStream *_packetStream;
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int _samplingRate;
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};
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private:
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PacoVideoTrack *_videoTrack;
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PacoAudioTrack *_audioTrack;
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Common::SeekableReadStream *_fileStream;
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int _curFrame = 0;
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int _frameSizes[65536]; // can be done differently?
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int getAudioSamplingRate();
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};
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} // End of namespace Video
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#endif
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