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engines/groovie/video/roq.h

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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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef GROOVIE_VIDEO_ROQ_H
+#define GROOVIE_VIDEO_ROQ_H
+
+#include "groovie/video/player.h"
+#include "audio/mixer.h"
+
+namespace Video {
+class VideoDecoder;
+}
+
+namespace Groovie {
+
+class GroovieEngine;
+
+struct ROQBlockHeader {
+	uint16 type;
+	uint32 size;
+	uint16 param;
+};
+
+class ROQPlayer : public VideoPlayer {
+public:
+	ROQPlayer(GroovieEngine *vm);
+	~ROQPlayer();
+	void setOrigin(int16 x, int16 y) override;
+
+	Audio::SoundHandle getSoundHandle() {
+		return _soundHandle;
+	}
+
+	void drawString(Graphics::Surface *surface, const Common::String &text, int posx, int posy, uint32 color, bool blackBackground) override;
+	void copyfgtobg(uint8 arg) override;
+
+	bool isFileHandled() override { return _isFileHandled; }
+
+protected:
+	void waitFrame() override;
+	uint16 loadInternal() override;
+	bool playFrameInternal() override;
+	void stopAudioStream() override;
+	virtual void createAudioStream(bool stereo);
+
+	Audio::SoundHandle _soundHandle;
+	Graphics::Surface *_bg, *_screen, *_overBuf;
+	Graphics::Surface *_currBuf, *_prevBuf;
+
+private:
+	bool readBlockHeader(ROQBlockHeader &blockHeader);
+
+	bool isValidBlockHeaderType(uint16 blockHeaderType);
+	bool processBlock();
+	bool processBlockInfo(ROQBlockHeader &blockHeader);
+	bool processBlockQuadCodebook(ROQBlockHeader &blockHeader);
+	bool processBlockQuadVector(ROQBlockHeader &blockHeader);
+	void processBlockQuadVectorBlock(int baseX, int baseY);
+	void processBlockQuadVectorBlockSub(int baseX, int baseY);
+	bool processBlockStill(ROQBlockHeader &blockHeader);
+	bool processBlockSoundMono(ROQBlockHeader &blockHeader);
+	bool processBlockSoundStereo(ROQBlockHeader &blockHeader);
+	bool processBlockAudioContainer(ROQBlockHeader &blockHeader);
+	bool playFirstFrame() { return _flagNoPlay; }; // _alpha && !_flagOverlay; }
+	void clearOverlay();
+	void dumpAllSurfaces(const Common::String &funcname);
+
+	void paint2(byte i, int destx, int desty);
+	void paint4(byte i, int destx, int desty);
+	void paint8(byte i, int destx, int desty);
+	void copy(byte size, int destx, int desty, int dx, int dy);
+
+	// Origin
+	int16 _origX, _origY;
+	//int16 _screenOffset;
+	void calcStartStop(int &start, int &stop, int origin, int length);
+
+	// Block coding type
+	byte getCodingType();
+	uint16 _codingType;
+	byte _codingTypeCount;
+
+	// Codebooks
+	uint16 _num2blocks;
+	uint16 _num4blocks;
+	uint32 _codebook2[256 * 4];
+	byte _codebook4[256 * 4];
+
+	// Flags
+	bool _flagNoPlay;	 //!< Play only first frame and do not print the image to the screen
+	bool _flagOverlay;	 //!< If _flagNoPlay is set. Copy frame to the foreground otherwise to the background
+	bool _altMotionDecoder; // Some ROQ vids use a variation on the copy codeblock
+	bool _flagMasked; //!< Clear the video instead of play it, used in pente
+
+	// Buffers
+	void redrawRestoreArea(int screenOffset, bool force);
+	void buildShowBuf();
+	byte _scaleX, _scaleY;
+	byte _offScale;
+	int8 _motionOffX, _motionOffY;
+	bool _interlacedVideo;
+	bool _dirty;
+	byte _alpha;
+	bool _firstFrame;
+	Common::Rect *_restoreArea;	// Area to be repainted by foreground
+
+	Video::VideoDecoder *_videoDecoder;
+	bool _isFileHandled;
+};
+
+class ROQSoundPlayer : public ROQPlayer {
+public:
+	ROQSoundPlayer(GroovieEngine *vm);
+	~ROQSoundPlayer();
+	void createAudioStream(bool stereo) override;
+};
+
+} // End of Groovie namespace
+
+#endif // GROOVIE_VIDEO_ROQ_H