// Copyright (c) 2006-2009 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 CDrawThirtyTwoBppScreenBitmapAlphaPM::InitScreen()

 	{

 	TRect drawRect;

 	GetDrawRect(drawRect);

 	RWindows* window = ::WindowHandler(iScreenNo);

 	window->iDisplayMode = DisplayMode();

 	window->iEpocBitmapSize = drawRect.Size();

 	window->iEpocBitmapLinePitch = iScanLineWords * 4;

 	return KErrNone;

 	}

 TBool CDrawThirtyTwoBppScreenBitmapAlphaPM::SetOrientation(TOrientation aOrientation)

 	{

 	if (aOrientation == iEmulatorOrientation)

 		return ETrue;

 	SetScreenOrientation(aOrientation);

 	iEmulatorOrientation = aOrientation;

 	iOrientation = aOrientation ;

 	return ETrue;

 	}

 void CDrawThirtyTwoBppScreenBitmapAlphaPM::UpdateRect(const TRect& aRect) const

 	{

 	ASSERT(aRect.iTl.iX >= 0 && aRect.iTl.iY >= 0);

 #if defined(_DEBUG)

 	if (iOrientation&1)

 		{

 		ASSERT(aRect.iBr.iX <= iSize.iHeight);

 		ASSERT(aRect.iBr.iY <= iSize.iWidth);

 		}

 	else

 		{

 		ASSERT(aRect.iBr.iX <= iSize.iWidth);

 		ASSERT(aRect.iBr.iY <= iSize.iHeight);

 		}

 #endif

 	TInt scanLineLen=iLongWidth*4;

 	TInt srcPixelStep=4;

 	TPoint srcStart(aRect.iTl);

 	switch(iOrientation)

 		{

 	case CFbsDrawDevice::EOrientationRotated90:

 		srcPixelStep=scanLineLen;

 		scanLineLen=-4;

 		srcStart.iX=iSize.iWidth-1-aRect.iTl.iY;

 		srcStart.iY=aRect.iTl.iX;

 		break;

 	case CFbsDrawDevice::EOrientationRotated180:

 		srcPixelStep=-4;

 		scanLineLen=-scanLineLen;

 		srcStart.iX=iSize.iWidth-1-aRect.iTl.iX;

 		srcStart.iY=iSize.iHeight-1-aRect.iTl.iY;

 		break;

 	case CFbsDrawDevice::EOrientationRotated270:

 		srcPixelStep=-scanLineLen;

 		scanLineLen=4;

 		srcStart.iX=aRect.iTl.iY;

 		srcStart.iY=iSize.iHeight-1-aRect.iTl.iX;

 		break;

 		}

 	TUint8* srcePtr = (TUint8*)PixelAddress(srcStart.iX,srcStart.iY);

 	TUint8* srcePtrLimit = srcePtr + aRect.Width()*srcPixelStep;

 	TInt rowMax = aRect.iTl.iY+aRect.Height();

 	srcPixelStep-=3;	// as we increment while reading it

 	for(TInt row = aRect.iTl.iY; row < rowMax; row++)

 		{

 		TUint8* tempSrcePtr = srcePtr;

 		TUint8* destPixel = WinPixelAddress(aRect.iTl.iX,row);

 		while (tempSrcePtr != srcePtrLimit)

  			{

 			*destPixel++=*tempSrcePtr++;

 			*destPixel++=*tempSrcePtr++;

 			*destPixel++=*tempSrcePtr++;

 			tempSrcePtr += srcPixelStep;

  			}

  		srcePtr+=scanLineLen;

  		srcePtrLimit+=scanLineLen;

 		}

 	}