--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicsutils/commongraphicsheaders/inc/surface.h	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,91 @@
+// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// surface
+// 
+//
+
+/**
+ @file
+ @publishedPartner
+ @released
+*/
+#ifndef __SURFACE_H__
+#define __SURFACE_H__
+
+#include <e32def.h>
+
+class TSurfaceId
+	{
+	public:
+	enum
+		{
+		EInvalidSurface = 0,
+		EScreenSurface = 1,
+		EStreamHandle = 2,
+		EAdaptationSurfaceBase = 33,
+		};
+	struct TSurfaceUsage 			 //TSurfaceId::TSurfaceUsage::
+		{
+		enum	
+			{
+			//screen usage
+			EScreenField=0,
+			EHalField=1,
+			EHalFlippedFlag=0x80000000,
+			ETypeGuidField=2,
+			//stream handle usage
+			EObjectRefField=0,
+			//general class usage
+			ETypeClassField=3,
+			ETypeClassShift=24
+			};
+		};
+	typedef TSurfaceUsage TScreenSurfaceUsage; 			 //Backward compatibility
+	
+	
+	inline static TSurfaceId CreateNullId(void) 
+		{
+		TSurfaceId id = TSurfaceId();
+		for (TInt i = 0; i < 4; ++i) id.iInternal[i] = 0; 
+		return id;
+		};
+	inline TBool IsNull() const 
+		{
+		return ((iInternal[0] == 0) &&
+				(iInternal[1] == 0) &&
+				(iInternal[2] == 0) &&
+				(iInternal[3] == 0));
+			
+		};
+	inline TInt Type() const {return (TInt)(iInternal[3] >> 24);}
+	public:
+	TUint32 iInternal[4];
+	};
+
+
+inline bool operator == (const TSurfaceId& lhs, const TSurfaceId& rhs)
+	{
+	return ((lhs.iInternal[0] == rhs.iInternal[0]) &&
+			(lhs.iInternal[1] == rhs.iInternal[1]) &&
+			(lhs.iInternal[2] == rhs.iInternal[2]) &&
+			(lhs.iInternal[3] == rhs.iInternal[3]));
+	}
+
+inline bool operator != (const TSurfaceId& lhs, const TSurfaceId& rhs)
+	{
+	return !(lhs == rhs);
+	}
+
+#endif
+