mirror of
https://github.com/libretro/scummvm.git
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129 lines
3.4 KiB
C++
129 lines
3.4 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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*/
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#ifndef SCI_VIDEO_ROBOT_DECODER_H
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#define SCI_VIDEO_ROBOT_DECODER_H
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#include "common/rational.h"
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#include "common/rect.h"
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#include "video/video_decoder.h"
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namespace Audio {
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class QueuingAudioStream;
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}
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namespace Common {
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class SeekableSubReadStreamEndian;
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}
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namespace Sci {
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class RobotDecoder : public Video::VideoDecoder {
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public:
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RobotDecoder(bool isBigEndian);
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virtual ~RobotDecoder();
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bool loadStream(Common::SeekableReadStream *stream);
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bool load(GuiResourceId id);
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void close();
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void setPos(uint16 x, uint16 y) { _pos = Common::Point(x, y); }
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Common::Point getPos() const { return _pos; }
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protected:
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void readNextPacket();
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private:
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class RobotVideoTrack : public FixedRateVideoTrack {
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public:
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RobotVideoTrack(int frameCount);
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~RobotVideoTrack();
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uint16 getWidth() const;
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uint16 getHeight() const;
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Graphics::PixelFormat getPixelFormat() const;
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int getCurFrame() const { return _curFrame; }
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int getFrameCount() const { return _frameCount; }
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const Graphics::Surface *decodeNextFrame() { return _surface; }
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const byte *getPalette() const { _dirtyPalette = false; return _palette; }
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bool hasDirtyPalette() const { return _dirtyPalette; }
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void readPaletteChunk(Common::SeekableSubReadStreamEndian *stream, uint16 chunkSize);
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void calculateVideoDimensions(Common::SeekableSubReadStreamEndian *stream, uint32 *frameSizes);
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Graphics::Surface *getSurface() { return _surface; }
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void increaseCurFrame() { _curFrame++; }
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protected:
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Common::Rational getFrameRate() const { return Common::Rational(60, 10); }
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private:
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int _frameCount;
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int _curFrame;
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byte _palette[256 * 3];
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mutable bool _dirtyPalette;
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Graphics::Surface *_surface;
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};
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class RobotAudioTrack : public AudioTrack {
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public:
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RobotAudioTrack();
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~RobotAudioTrack();
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Audio::Mixer::SoundType getSoundType() const { return Audio::Mixer::kMusicSoundType; }
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void queueBuffer(byte *buffer, int size);
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protected:
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Audio::AudioStream *getAudioStream() const;
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private:
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Audio::QueuingAudioStream *_audioStream;
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};
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struct RobotHeader {
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// 6 bytes, identifier bytes
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uint16 version;
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uint16 audioChunkSize;
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uint16 audioSilenceSize;
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// 2 bytes, unknown
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uint16 frameCount;
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uint16 paletteDataSize;
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uint16 unkChunkDataSize;
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// 5 bytes, unknown
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byte hasSound;
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// 34 bytes, unknown
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} _header;
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void readHeaderChunk();
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void readFrameSizesChunk();
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Common::Point _pos;
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bool _isBigEndian;
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uint32 *_frameTotalSize;
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Common::SeekableSubReadStreamEndian *_fileStream;
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};
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} // End of namespace Sci
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#endif
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