--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicsdeviceinterface/screendriver/swins/SCMON4.CPP	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,97 @@
+// 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 CDrawFourBppScreenBitmapGray::InitScreen()
+	{
+	TRect drawRect;
+	GetDrawRect(drawRect);
+    RWindows* window = ::WindowHandler(iScreenNo);
+	window->iDisplayMode = DisplayMode();
+	window->iEpocBitmapSize = drawRect.Size();
+	window->iEpocBitmapLinePitch = (iScanLineWords*4);
+
+	return KErrNone;
+	}
+
+void CDrawFourBppScreenBitmapGray::OrientationsAvailable(TBool aOrientation[4])
+	{
+	aOrientation[EOrientationNormal] = ETrue;
+	aOrientation[EOrientationRotated90] = EFalse;
+	aOrientation[EOrientationRotated180] = EFalse;
+	aOrientation[EOrientationRotated270] = EFalse;
+	}
+
+void CDrawFourBppScreenBitmapGray::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;
+	TInt wordwidth = (rx - lx) >> 3;
+
+	for (TInt row = aRect.iTl.iY; row < aRect.iBr.iY; row++)
+		{
+		TUint8* destPixel = WinPixelAddress(lx,row);
+		TInt wordx = lx;
+
+		for(TInt word = 0; word < wordwidth; word++)
+			{
+			TUint32 data;
+			ReadLine(wordx,row,8,&data);
+
+			TUint8 grayIndex = TUint8((data & 0xf) * 17);
+			destPixel[0] = grayIndex;
+			destPixel[1] = grayIndex;
+			destPixel[2] = grayIndex;
+			grayIndex = TUint8(((data >> 4) & 0xf) * 17);
+			destPixel[3] = grayIndex;
+			destPixel[4] = grayIndex;
+			destPixel[5] = grayIndex;
+			grayIndex = TUint8(((data >> 8) & 0xf) * 17);
+			destPixel[6] = grayIndex;
+			destPixel[7] = grayIndex;
+			destPixel[8] = grayIndex;
+			grayIndex = TUint8(((data >> 12) & 0xf) * 17);
+			destPixel[9] = grayIndex;
+			destPixel[10] = grayIndex;
+			destPixel[11] = grayIndex;
+			grayIndex = TUint8(((data >> 16) & 0xf) * 17);
+			destPixel[12] = grayIndex;
+			destPixel[13] = grayIndex;
+			destPixel[14] = grayIndex;
+			grayIndex = TUint8(((data >> 20) & 0xf) * 17);
+			destPixel[15] = grayIndex;
+			destPixel[16] = grayIndex;
+			destPixel[17] = grayIndex;
+			grayIndex = TUint8(((data >> 24) & 0xf) * 17);
+			destPixel[18] = grayIndex;
+			destPixel[19] = grayIndex;
+			destPixel[20] = grayIndex;
+			grayIndex = TUint8(((data >> 28) & 0xf) * 17);
+			destPixel[21] = grayIndex;
+			destPixel[22] = grayIndex;
+			destPixel[23] = grayIndex;
+
+			destPixel += 24;
+			wordx += 8;
+			}
+		}
+	}
+