--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicsdeviceinterface/screendriver/swins/SCCOL4.CPP	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,84 @@
+// Copyright (c) 1997-2009 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:
+//
+
+#include "SCDRAW.H"
+#include "_WININC.H"
+
+TInt CDrawFourBppScreenBitmapColor::InitScreen()
+	{
+	TRect drawRect;
+	GetDrawRect(drawRect);
+    RWindows* window = ::WindowHandler(iScreenNo);
+	window->iDisplayMode = DisplayMode();
+	window->iEpocBitmapSize = drawRect.Size();
+	window->iEpocBitmapLinePitch = (iScanLineWords*4);
+
+	return KErrNone;
+	}
+
+void CDrawFourBppScreenBitmapColor::OrientationsAvailable(TBool aOrientation[4])
+	{
+	aOrientation[EOrientationNormal] = ETrue;
+	aOrientation[EOrientationRotated90] = EFalse;
+	aOrientation[EOrientationRotated180] = EFalse;
+	aOrientation[EOrientationRotated270] = EFalse;
+	}
+
+void CDrawFourBppScreenBitmapColor::UpdateRect(const TRect& aRect) const
+	{
+	ASSERT(aRect.iTl.iX >= 0 && aRect.iTl.iY >= 0);
+	ASSERT(aRect.iBr.iX <= iSize.iWidth);
+	ASSERT(aRect.iBr.iY <= iSize.iHeight);
+
+	TInt lx = aRect.iTl.iX & ~7;
+	TInt rx = (aRect.iBr.iX + 7) & ~7;
+
+	TUint8* srcePtr = ((TUint8*)(ScanLine(aRect.iTl.iY))) + (lx / 2);
+	TUint8* srcePtrLimit = srcePtr + ((rx - lx) / 2);
+
+	TInt byteWidth = iScanLineWords * 4;
+	TRgb pixelColor;
+
+	for(TInt row = aRect.iTl.iY; row < aRect.iBr.iY; row++)
+		{
+		TUint8* tempSrcePtr = srcePtr;
+		TUint8* destPixel = WinPixelAddress(lx,row);
+
+		while (tempSrcePtr < srcePtrLimit)
+			{
+			TUint8 pixelValue1 = *tempSrcePtr++;
+			TUint8 pixelValue2 = TUint8(pixelValue1 >> 4);
+			pixelValue1 &= 0xf;
+
+			pixelColor = TRgb::Color16(pixelValue1);
+			destPixel[0] = TUint8(pixelColor.Blue());
+			destPixel[1] = TUint8(pixelColor.Green());
+			destPixel[2] = TUint8(pixelColor.Red());
+
+			if (pixelValue2 != pixelValue1)
+				pixelColor = TRgb::Color16(pixelValue2);
+
+			destPixel[3] = TUint8(pixelColor.Blue());
+			destPixel[4] = TUint8(pixelColor.Green());
+			destPixel[5] = TUint8(pixelColor.Red());
+
+			destPixel += 6;
+			}
+
+		srcePtr += byteWidth;
+		srcePtrLimit += byteWidth;
+		}
+	}
+