// 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;

		}

	}