--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicsdeviceinterface/screendriver/swins/SCMON2.CPP Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,95 @@
+// 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 CDrawTwoBppScreenBitmap::InitScreen()
+ {
+ TRect drawRect;
+ GetDrawRect(drawRect);
+ RWindows* window = ::WindowHandler(iScreenNo);
+ window->iDisplayMode = DisplayMode();
+ window->iEpocBitmapSize = drawRect.Size();
+ window->iEpocBitmapLinePitch = (iScanLineWords*4);
+
+ return KErrNone;
+ }
+
+void CDrawTwoBppScreenBitmap::OrientationsAvailable(TBool aOrientation[4])
+ {
+ aOrientation[EOrientationNormal] = ETrue;
+ aOrientation[EOrientationRotated90] = EFalse;
+ aOrientation[EOrientationRotated180] = EFalse;
+ aOrientation[EOrientationRotated270] = EFalse;
+ }
+
+void CDrawTwoBppScreenBitmap::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);
+
+ const TUint8 gray4lookup[4] = {0, 85, 170, 255};
+
+ TInt lx = aRect.iTl.iX & ~0xf;
+ TInt rx = (aRect.iBr.iX + 15) & ~0xf;
+
+ TUint8* srcePtr = ((TUint8*)(ScanLine(aRect.iTl.iY))) + (lx / 4);
+ TUint8* srcePtrLimit = srcePtr + ((rx - lx) / 4);
+
+ TInt byteWidth = iScanLineWords * 4;
+
+ 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 >> 2) & 0x03);
+ TUint8 pixelValue3 = TUint8((pixelValue1 >> 4) & 0x03);
+ TUint8 pixelValue4 = TUint8((pixelValue1 >> 6) & 0x03);
+ pixelValue1 &= 0x03;
+
+ TUint8 pixelGray = gray4lookup[pixelValue1];
+ destPixel[0] = pixelGray;
+ destPixel[1] = pixelGray;
+ destPixel[2] = pixelGray;
+
+ pixelGray = gray4lookup[pixelValue2];
+ destPixel[3] = pixelGray;
+ destPixel[4] = pixelGray;
+ destPixel[5] = pixelGray;
+
+ pixelGray = gray4lookup[pixelValue3];
+ destPixel[6] = pixelGray;
+ destPixel[7] = pixelGray;
+ destPixel[8] = pixelGray;
+
+ pixelGray = gray4lookup[pixelValue4];
+ destPixel[9] = pixelGray;
+ destPixel[10] = pixelGray;
+ destPixel[11] = pixelGray;
+
+ destPixel += 12;
+ }
+
+ srcePtr += byteWidth;
+ srcePtrLimit += byteWidth;
+ }
+ }
+