VOYEUR: Implemented RL2 video decoder

1 files changed, 100 insertions, 0 deletions

diff --git a/engines/voyeur/animation.h b/engines/voyeur/animation.h
new file mode 100644
index 0000000000..dccf409e92
--- /dev/null
+++ b/engines/voyeur/animation.h
@@ -0,0 +1,100 @@
+/* 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.
+ *
+ */
+
+#ifndef VOYEUR_ANIMATION_H
+#define VOYEUR_ANIMATION_H
+
+#include "video/video_decoder.h"
+#include "common/list.h"
+#include "common/rect.h"
+#include "common/stream.h"
+
+namespace Video {
+
+/**
+ * Decoder for RL2 videos.
+ *
+ * Video decoder used in engines:
+ *  - voyeur
+ */
+class RL2Decoder : public VideoDecoder {
+public:
+	RL2Decoder();
+	virtual ~RL2Decoder();
+
+	bool loadStream(Common::SeekableReadStream *stream);
+
+	const Common::List<Common::Rect> *getDirtyRects() const;
+	void clearDirtyRects();
+	void copyDirtyRectsToBuffer(uint8 *dst, uint pitch);
+
+private:
+	class RL2VideoTrack : public VideoTrack {
+	public:
+		RL2VideoTrack(Common::SeekableReadStream *stream);
+		~RL2VideoTrack();
+
+		bool endOfTrack() const;
+		bool isRewindable() const { return true; }
+		bool rewind();
+
+		uint16 getWidth() const;
+		uint16 getHeight() const;
+		Graphics::PixelFormat getPixelFormat() const;
+		int getCurFrame() const { return _curFrame; }
+		int getFrameCount() const { return _frameCount; }
+		uint32 getNextFrameStartTime() const { return _nextFrameStartTime; }
+		const Graphics::Surface *decodeNextFrame();
+		const byte *getPalette() const { _dirtyPalette = false; return _palette; }
+		bool hasDirtyPalette() const { return _dirtyPalette; }
+
+		const Common::List<Common::Rect> *getDirtyRects() const { return &_dirtyRects; }
+		void clearDirtyRects() { _dirtyRects.clear(); }
+		void copyDirtyRectsToBuffer(uint8 *dst, uint pitch);
+
+	private:
+		Common::SeekableReadStream *_fileStream;
+		Graphics::Surface *_surface;
+		Graphics::Surface *_backSurface;
+
+		int _curFrame;
+
+		byte *_palette;
+		mutable bool _dirtyPalette;
+
+		uint32 _frameCount;
+		uint32 _videoBase;
+		uint32 *_frameOffset;
+		uint32 _frameDelay;
+		uint32 _nextFrameStartTime;
+
+		Common::List<Common::Rect> _dirtyRects;
+
+		void copyFrame(uint8 *data);
+		void rl2DecodeFrameWithBackground();
+		void rl2DecodeFrameWithoutBackground(int screenOffset = -1);
+	};
+};
+
+} // End of namespace Video
+
+#endif /* VOYEUR_ANIMATION_H */