diff -r 000000000000 -r bde4ae8d615e os/graphics/windowing/windowserver/inc/Graphics/wsscreendevice.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/graphics/windowing/windowserver/inc/Graphics/wsscreendevice.h	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,79 @@
+// Copyright (c) 2008-2009 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:
+// Interface for Render Stage Screen Abstraction
+// 
+//
+
+/**
+ @publishedPartner
+ @prototype
+*/
+
+#ifndef WSSCREENDEVICE_H
+#define WSSCREENDEVICE_H
+
+#include <w32std.h>
+#include <graphics/wsgraphicdrawerinterface.h>
+
+/** Render Stage Palette support.
+
+This interface is intended to be optionally provided by a Render Stage
+when the pixel target can provide a Colour Palette.  Not all pixel targets have
+this feature, for example OpenVG only targets.
+@publishedPartner
+@prototype
+*/
+class MWsPalette : public MWsObjectProvider
+	{
+public:
+	DECLARE_WS_TYPE_ID(KMWsPalette)
+	virtual void PaletteAttributes(TBool& aModifiable,TInt& aNumEntries) const = 0;
+	virtual TInt GetPalette(CPalette*& aPalette) const = 0;
+	virtual TInt SetCustomPalette(const CPalette* aPalette) = 0;
+	};
+
+
+/** Render Stage Screen Device abstraction.
+
+Render Stages provide this interface as an abstraction of the target screen.
+The screen may not be pixel based, in which case read back of pixel data may
+not be a reflection of what appears on the screen.  The screen might also only
+be partially readable, for example external video surfaces may be blanked out
+when a read back is done.  The intention of the CopyScreenToBitmap methods is
+to provide a means to obtain a snapshot of the entire screen for architectures
+where a composition of the screen can be done once followed by a read back
+of the entire screen, as opposed to servicing a sequence of GetScanLine calls
+which may be prohibitively expensive.
+
+@publishedPartner
+@prototype
+*/
+class MWsScreenDevice : public MWsObjectProvider
+	{
+public:
+	DECLARE_WS_TYPE_ID(KMWsScreenDevice)
+
+	virtual TInt ScreenNumber() const = 0;
+	virtual TDisplayMode DisplayMode() const = 0;
+	virtual TSize SizeInPixels() const = 0;
+	virtual TSize SizeInTwips() const = 0;
+	virtual TRect PointerRect() const = 0;
+	virtual void GetPixel(TRgb& aColor,const TPoint& aPixel) const = 0;
+	virtual void GetScanLine(TDes8& aScanLine,const TPoint& aStartPixel,TInt aPixelLength, TDisplayMode aDispMode) const = 0;
+	virtual TBool RectCompare(const TRect& aRect1, const TRect& aRect2) const = 0;
+	virtual void CopyScreenToBitmapL(CFbsBitmap* aBitmap, const TRect& aRect) const = 0;
+	virtual void ClearDisplay(TRgb aBackColor)=0;
+	};
+
+#endif // WSSCREENDEVICE_H