GRAPHICS: Move graphics/video/ to video/. Step 1/2

svn-id: r55473

1 files changed, 101 insertions, 0 deletions

diff --git a/video/dxa_decoder.h b/video/dxa_decoder.h
new file mode 100644
index 0000000000..a9a656e46d
--- /dev/null
+++ b/video/dxa_decoder.h
@@ -0,0 +1,101 @@
+/* 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifndef GRAPHICS_VIDEO_DXA_PLAYER_H
+#define GRAPHICS_VIDEO_DXA_PLAYER_H
+
+#include "graphics/video/video_decoder.h"
+
+namespace Graphics {
+
+/**
+ * Decoder for DXA videos.
+ *
+ * Video decoder used in engines:
+ *  - agos
+ *  - sword1
+ *  - sword2
+ */
+class DXADecoder : public FixedRateVideoDecoder {
+public:
+	DXADecoder();
+	virtual ~DXADecoder();
+
+	bool load(Common::SeekableReadStream *stream);
+	void close();
+
+	bool isVideoLoaded() const { return _fileStream != 0; }
+	uint16 getWidth() const { return _width; }
+	uint16 getHeight() const { return _height; }
+	uint32 getFrameCount() const { return _frameCount; }
+	const Surface *decodeNextFrame();
+	PixelFormat getPixelFormat() const { return PixelFormat::createFormatCLUT8(); }
+	const byte *getPalette() { _dirtyPalette = false; return _palette; }
+	bool hasDirtyPalette() const { return _dirtyPalette; }
+
+	/**
+	 * Get the sound chunk tag of the loaded DXA file
+	 */
+	uint32 getSoundTag() { return _soundTag; }
+
+protected:
+	Common::Rational getFrameRate() const { return _frameRate; }
+
+	Common::SeekableReadStream *_fileStream;
+
+private:
+	void decodeZlib(byte *data, int size, int totalSize);
+	void decode12(int size);
+	void decode13(int size);
+
+	enum ScaleMode {
+		S_NONE,
+		S_INTERLACED,
+		S_DOUBLE
+	};
+
+	Graphics::Surface *_surface;
+	byte _palette[256 * 3];
+	bool _dirtyPalette;
+
+	byte *_frameBuffer1;
+	byte *_frameBuffer2;
+	byte *_scaledBuffer;
+	byte *_inBuffer;
+	uint32 _inBufferSize;
+	byte *_decompBuffer;
+	uint32 _decompBufferSize;
+	uint16 _curHeight;
+	uint32 _frameSize;
+	ScaleMode _scaleMode;
+	uint32 _soundTag;
+	uint16 _width, _height;
+	uint32 _frameRate;
+	uint32 _frameCount;
+};
+
+} // End of namespace Graphics
+
+#endif