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diff --git a/source/gameengine/Rasterizer/RAS_ICanvas.h b/source/gameengine/Rasterizer/RAS_ICanvas.h
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+++ b/source/gameengine/Rasterizer/RAS_ICanvas.h
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+/**
+ * $Id$
+ *
+ * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
+ *
+ * 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. The Blender
+ * Foundation also sells licenses for use in proprietary software under
+ * the Blender License.  See http://www.blender.org/BL/ for information
+ * about this.
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL/BL DUAL LICENSE BLOCK *****
+ */
+#ifndef __RAS_ICANVAS
+#define __RAS_ICANVAS
+
+/**
+ * 2D rendering device context. The connection from 3d rendercontext to 2d surface.
+ */
+
+class RAS_Rect;
+
+
+class RAS_ICanvas
+{
+public:
+	enum BufferType {
+		COLOR_BUFFER=1,
+		DEPTH_BUFFER=2
+	};
+
+	enum RAS_MouseState
+	{
+		MOUSE_INVISIBLE=1,
+		MOUSE_WAIT,
+		MOUSE_NORMAL
+	};
+
+	virtual 
+	~RAS_ICanvas(
+	) {
+	};
+
+	virtual 
+		void 
+	Init(
+	) = 0;
+
+	virtual 
+		void 
+	BeginFrame(
+	)=0;
+
+	virtual 
+		void 
+	EndFrame(
+	)=0;
+
+	/**
+	 * Initializes the canvas for drawing.  Drawing to the canvas is
+	 * only allowed between BeginDraw() and EndDraw().
+	 *
+	 * @retval false Acquiring the canvas failed.
+	 * @retval true Acquiring the canvas succeeded.
+	 *
+	 */
+
+	virtual 
+		bool 
+	BeginDraw(
+	)=0;
+
+	/**
+	 * Unitializes the canvas for drawing.
+	 */
+
+	virtual 
+		void 
+	EndDraw(
+	)=0;
+
+
+	/// probably needs some arguments for PS2 in future
+	virtual 
+		void 
+	SwapBuffers(
+	)=0;
+ 
+	virtual 
+		void 
+	ClearBuffer(
+		int type
+	)=0;
+
+	virtual 
+		void 
+	ClearColor(
+		float r,
+		float g,
+		float b,
+		float a
+	)=0;
+
+	virtual 
+		int	 
+	GetWidth(
+	) const = 0;
+
+	virtual 
+		int	 
+	GetHeight(
+	) const = 0;
+
+	virtual 
+		const RAS_Rect &
+	GetDisplayArea(
+	) const = 0;
+
+	virtual 
+		RAS_Rect &
+	GetDisplayArea(
+	) = 0;
+
+	/**
+	 * Set the visible vieport 
+	 */
+
+	virtual
+		void
+	SetViewPort(
+		int x1, int y1,
+		int x2, int y2
+	) = 0; 
+
+	virtual 
+		void 
+	SetMouseState(
+		RAS_MouseState mousestate
+	)=0;
+
+	virtual 
+		void 
+	SetMousePosition(
+		int x,
+		int y
+	)=0;
+
+	virtual 
+		void 
+	MakeScreenShot(
+		const char* filename
+	)=0;
+};
+#endif //__RAS_ICANVAS