diff -r 000000000000 -r bde4ae8d615e os/graphics/graphicsdeviceinterface/bitgdi/tbit/TAlphaBlend.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/graphics/graphicsdeviceinterface/bitgdi/tbit/TAlphaBlend.h	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,88 @@
+// Copyright (c) 2004-2009 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:
+//
+
+#ifndef __TALPHABLEND_H__
+#define __TALPHABLEND_H__
+
+#include <bitdev.h>
+#include "TGraphicsHarness.h"
+
+
+class CTAlphaBlending : public CTGraphicsBase
+	{
+public:
+	CTAlphaBlending(CTestStep* aStep);
+	~CTAlphaBlending();
+
+protected:
+//from 	CTGraphicsStep
+	virtual void RunTestCaseL(TInt aCurTestCase);
+
+private:
+	TInt CreateScreenDevice(TDisplayMode aDisplayMode, CFbsBitGc::TGraphicsOrientation aOrientation=CFbsBitGc::EGraphicsOrientationNormal);
+	void DeleteScreenDevice();
+	void DeleteGraphicsContext();
+
+	void TestAlphaBlendingL();
+	void DoAlphaBlendingTestsL(const TPoint& aOrigin,
+							   const TPoint& aDestPt, 
+							   const TRect& aSrcRc1, 
+							   const TPoint& aScrPt2,
+							   const TPoint& aAlphaPt);
+	void DoAlphaBlendingTestL(CFbsBitmap* aScreenBmp, 
+							  const CFbsBitmap* aSrcBmp, 
+							  const CFbsBitmap* aAlphaBmp,
+							  const TPoint& aDestPt, 
+							  const TRect& aSrcRc1, 
+							  const TPoint& aSrcPt2,
+							  const TPoint& aAlphaPt);
+
+	void CreateAlphaBlendingBitmapsLC(CFbsBitmap*& aScreenBmp, 
+									  CFbsBitmap*& aSrcBmp, 
+									  CFbsBitmap*& aAlphaBmp,
+									  TDisplayMode aMode);
+	void DestroyAlphaBlendingBitmaps(CFbsBitmap*& aScreenBmp, 
+									 CFbsBitmap*& aSrcBmp, 
+									 CFbsBitmap*& aAlphaBmp);
+
+	void DoDrawBitmapTestL(TDisplayMode aTestDisplayMode);
+	void DoDrawBitmapTestsL();
+	void TestAlphaBlending2L();
+
+	void TestAlphaBlendCorrect(TDisplayMode aScreenMode, TDisplayMode aBitmapMode);
+	void TestAlphaBlendingPlotL();
+	TUint32 GetRawPixel(CFbsBitmap* aBitmap, TPoint aPos);
+
+private:
+	CFbsScreenDevice* iDevice;
+	CFbsBitGc* iGc;
+	};
+
+
+
+class CTAlphaBlendingStep : public CTGraphicsStep
+	{
+public:
+	CTAlphaBlendingStep();
+protected:	
+	//from CTGraphicsStep
+	virtual CTGraphicsBase* CreateTestL();
+	virtual void TestSetupL();
+	};
+
+_LIT(KTAlphaBlendingStep,"TAlphaBlending");
+
+
+#endif