diff -r 000000000000 -r bde4ae8d615e os/graphics/graphicsdeviceinterface/screendriver/sgeneric/scdraw.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/graphics/graphicsdeviceinterface/screendriver/sgeneric/scdraw.h	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,251 @@
+// Copyright (c) 2006-2010 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:
+// This module define the class and constants used for the different display
+// mode supported.
+// Include files                                                   
+// 
+//
+
+/**
+ @file
+ @internalComponent
+ @prototype
+*/
+/********************************************************************/
+#ifndef __SCDRAW_H__
+#define __SCDRAW_H__
+
+#if !defined(__E32SVR_H__)
+    #include <e32svr.h>
+#endif /* __E32SVR_H__ */
+
+#include <graphics/surfaceupdateclient.h>
+#include "BMDRAW.H"
+#include "BitDrawInterfaceId.h"
+#include "bitdrawsurface.h"
+#include <graphics/surface.h>
+#include <pixelformats.h>
+
+
+class TSurfaceId;
+
+/**
+The maximum number of rectangles to be held in the update region. This must be
+at least 3, since it has to be able to hold the union of two rectangles using
+disjoint rectangles.
+*/
+const TInt		KMaxUpdateRegionRectangles	= 10;
+
+/**
+ * Provide common features shared between screen devices. Included by composition
+ * rather than inheritance, to avoid multiple inheritance of implementation.
+ */
+NONSHARABLE_CLASS(CScreenDeviceHelper) : public CBase
+	{
+public:
+	// Default constructor.
+	TInt Construct(TInt aScreenNo, TUidPixelFormat aPixelFormat, TUint aHalMode);
+	~CScreenDeviceHelper();
+
+	inline TInt ScreenNumber() const { return iSurface.iInternal[TSurfaceId::TScreenSurfaceUsage::EScreenField]; }
+
+	void Update();
+	void Update(TRequestStatus& aStatus);
+
+	void UpdateRegion(const TRect& aRect);
+	void ResetUpdateRegion();
+	void NotifyWhenAvailable(TRequestStatus& aStatus);
+	void CancelUpdateNotification();
+
+	void GetSurface(TSurfaceId& aSid) const ;
+	TUint DeviceOrientationsAvailable(const TSize& aScreenSize) const ;
+	TUint BytesPerScanline() const;
+	void* AddressFirstPixel() const;
+
+	TBool SetDeviceOrientation(TDeviceOrientation aOrientation, TSize& aNewSize);
+	
+	TDeviceOrientation DeviceOrientation() const ;
+	TBool	DeviceFlipped() const;
+
+	TInt	HorzTwipsPerThousandPixels(const TSize& aPixels)const; 
+	TInt	VertTwipsPerThousandPixels(const TSize& aPixels)const; 
+	
+protected:
+	template <class Type> Type SecondIfFlipped(Type aValueUnFlipped,Type aValueFlipped)const
+		{
+		if (DeviceFlipped())
+			{
+			return aValueFlipped;
+			}
+		else
+			{
+			return aValueUnFlipped;
+			}
+		}
+	TBool SetDeviceFlipMode(TBool aFlip, TSize& aNewSize);
+	inline static TBool ConvertFlip(TDeviceOrientation aOrientation)
+		{
+		return (aOrientation&(EDeviceOrientation90CW|EDeviceOrientation270CW))!=0;
+		}
+		
+private:
+    TSurfaceId iSurface;
+    TDeviceOrientation iAssignedOrientation;
+	RSurfaceUpdateSession iSurfaceUpdateSession;
+	TRegionFix<KMaxUpdateRegionRectangles> iUpdateRegion;
+	RChunk iChunk;
+	TBool  iHasChunk;
+	};
+
+/**
+This template class is a helper to genericise the common implementation of the screen device.
+This class implements all the non-specific implementation.
+**/
+template <class TCDrawXxxBppBitmap> 
+class CGenericScreenDevice : public TCDrawXxxBppBitmap , public MSurfaceId
+	{
+public:
+	typedef TCDrawXxxBppBitmap		CDrawXxxBppBitmap;
+	virtual TInt  InitScreen() ;
+	virtual TInt  ConstructScreen(TInt aScreenNo, TAny *aBitmapAddress, TSize aSize, TInt aHalMode) ;
+    virtual void SetDisplayMode(CFbsDrawDevice*);
+   	virtual TInt HorzTwipsPerThousandPixels() const;
+	virtual TInt VertTwipsPerThousandPixels() const;
+
+	virtual void Update();
+	virtual void Update(const TRegion& aRegion);
+	virtual void UpdateRegion(const TRect& aRect);
+
+	virtual TInt GetInterface(TInt aInterfaceId, TAny*& aInterface);
+
+	// From MSurfaceId
+	virtual void GetSurface(TSurfaceId& aSid) const ;
+	virtual TUint DeviceOrientationsAvailable() const ;
+	virtual TDeviceOrientation DeviceOrientation() const ;
+protected:
+	//derived classes must implement virtual void SetSize(const TSize& aSize);
+	//derived classes must implement virtual TBool SetDeviceOrientation(TDeviceOrientation aOrientation)=0;
+	CScreenDeviceHelper iHelper;
+
+	};
+
+/**
+This template class is a helper to genericise the common implementation of the screen device.
+This class implements the "bits per pixel" specific implementation for modes that do not have GUIDs,
+but probably have palettes instead.
+params:	
+	-	CDrawXxxBppBitmap	The base pixel class that provides most of the drawing functionality.
+	-	displayMode			The symbian enumeraion for the mode - used when no GUID is defined.
+	-	pixelsPerWord		Number of pixels packed in a 32-bit word
+**/
+template <class TCDrawXxxBppBitmap,TDisplayMode displayMode,TInt pixelsPerWord>
+class CPalettizedScreenDevice : public CGenericScreenDevice<TCDrawXxxBppBitmap>
+	{
+public:
+	typedef  CGenericScreenDevice<TCDrawXxxBppBitmap>	CGenericScreenDevice;
+	virtual TInt  ConstructScreen(TInt aScreenNo, TAny *aBitmapAddress, TSize aSize, TInt aHalMode) ;
+	virtual TBool SetDeviceOrientation(TDeviceOrientation aOrientation);
+protected:
+	virtual void SetSize(const TSize& aSize);
+	};
+
+/**
+This template class is a helper to genericise the common implementation of the screen device.
+This class implements the "bits per pixel" specific implementation for modes that do have GUIDs.
+params:	
+	-	CDrawXxxBppBitmap	The base pixel class that provides most of the drawing functionality.
+	-	guidMode			The GUID for the mode - used by GCE
+	-	pixelsPerWord		Number of pixels packed in a 32-bit word
+**/
+template <class TCDrawXxxBppBitmap,TUidPixelFormat guidMode,TInt pixelsPerWord> 
+class CGuidScreenDevice : public CGenericScreenDevice<TCDrawXxxBppBitmap>
+	{
+public:
+	typedef  ::CGenericScreenDevice<TCDrawXxxBppBitmap>	CGenericScreenDevice;
+	virtual TInt  ConstructScreen(TInt aScreenNo, TAny *aBitmapAddress, TSize aSize, TInt aHalMode) ;
+	virtual TBool SetDeviceOrientation(TDeviceOrientation aOrientation);
+protected:
+	virtual void SetSize(const TSize& aSize);
+	};
+
+/**
+@internalComponent
+*/
+class CDrawOneBppScreenBitmap : public CPalettizedScreenDevice<CDrawOneBppBitmap,EGray2,32>
+	{};
+
+/**
+@internalComponent
+*/
+class CDrawTwoBppScreenBitmap : public CPalettizedScreenDevice<CDrawTwoBppBitmap,EGray4,16>
+	{};
+
+/**
+@internalComponent
+*/
+class CDrawFourBppScreenBitmapGray : public CPalettizedScreenDevice<CDrawFourBppBitmapGray,EGray16,8>
+	{};
+
+/**
+@internalComponent
+*/
+class CDrawFourBppScreenBitmapColor : public CPalettizedScreenDevice<CDrawFourBppBitmapColor,EColor16,8>
+	{};
+
+/**
+@internalComponent
+*/
+class CDrawEightBppScreenBitmapGray : public CPalettizedScreenDevice<CDrawEightBppBitmapGray,EGray256,4>
+	{};
+
+/**
+@internalComponent
+*/
+class CDrawEightBppScreenBitmapColor : public CPalettizedScreenDevice<CDrawEightBppBitmapColor,EColor256,4>
+	{};
+
+/**
+@internalComponent
+*/
+class CDrawTwelveBppScreenBitmapColor : public CGuidScreenDevice<CDrawTwelveBppBitmap,EUidPixelFormatXRGB_4444,2>
+	{};
+
+/**
+@internalComponent
+*/
+class CDrawSixteenBppScreenBitmap : public CGuidScreenDevice<CDrawSixteenBppBitmap,EUidPixelFormatRGB_565,2>
+	{};
+
+/**
+@internalComponent
+*/
+class CDrawUTwentyFourBppScreenBitmap : public CGuidScreenDevice<CDrawUTwentyFourBppBitmap,EUidPixelFormatXRGB_8888,1>
+	{};
+
+/**
+@internalComponent
+*/
+class CDrawThirtyTwoBppScreenBitmapAlpha : public CGuidScreenDevice<CDrawThirtyTwoBppBitmapAlpha,EUidPixelFormatARGB_8888,1>
+	{};
+
+
+/**
+@internalComponent
+*/
+class CDrawThirtyTwoBppScreenBitmapAlphaPM : public CGuidScreenDevice<CDrawThirtyTwoBppBitmapAlphaPM,EUidPixelFormatARGB_8888_PRE,1>
+	{};
+
+
+#endif /* __SCDRAW_H__ */
+