// Copyright (c) 2007-2009 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:

 // This module implements the class for a 32ap bpp color screen with premultiplied

 // alpha.

 // 

 //

 /**

  @file

 */

 #include <hal.h>

 #include <e32std.h>

 #include <bitdraw.h>

 #include "scdraw.h"

 void CDrawThirtyTwoBppScreenBitmapAlphaPM::SetSize(const TSize& aSize) 

 	{

     CDrawBitmap::SetSize(aSize);

     __ASSERT_DEBUG(iSize == aSize, User::Invariant());

 	iLongWidth = iScanLineWords;

 	}

 void CDrawThirtyTwoBppScreenBitmapAlphaPM::SetDisplayMode(CFbsDrawDevice* aDrawDevice)

 	{

 	CopyOldSettings(aDrawDevice) ;

 	InitScreen() ;

 	}

 TInt CDrawThirtyTwoBppScreenBitmapAlphaPM::HorzTwipsPerThousandPixels() const

 	{

 	if (iSize.iWidth == 0)

 		return 0;

     TInt displayMode;

     TInt r = HAL::Get(iScreenNo, HAL::EDisplayMode, displayMode);

     if (r != KErrNone)

     	return 0;

     TInt width = displayMode;

     r = HAL::Get(iScreenNo, HAL::EDisplayXTwips, width);

 	if (r != KErrNone)

     	return 0;

     return (width * 1000) / iSize.iWidth;

 	}

 TInt CDrawThirtyTwoBppScreenBitmapAlphaPM::VertTwipsPerThousandPixels() const

 	{

 	if (iSize.iHeight == 0)

 		return 0;

     TInt displayMode;

     TInt r = HAL::Get(iScreenNo, HAL::EDisplayMode, displayMode);

     if (r != KErrNone)

     	return 0;

     TInt height = displayMode;

     r = HAL::Get(iScreenNo, HAL::EDisplayYTwips, height);

     if (r != KErrNone)

     	return 0;

     return (height * 1000) / iSize.iHeight;

 	}

 TInt CDrawThirtyTwoBppScreenBitmapAlphaPM::InitScreen()

 	{

 	return KErrNone ;

 	}

 TInt CDrawThirtyTwoBppScreenBitmapAlphaPM::ConstructScreenL(TInt aScreenNo, TAny* aBitmapAddress, TSize aSize)

 	{

 	iScreenNo = aScreenNo;

     TInt displayMode;

 	TInt ret = HAL::Get(aScreenNo, HALData::EDisplayMode, displayMode);

     if (ret != KErrNone)

     	return ret;

     TInt linepitchInBytes = displayMode;

     ret = HAL::Get(aScreenNo,HALData::EDisplayOffsetBetweenLines,linepitchInBytes);

     if (ret != KErrNone)

     	return ret;

 	iScanLineWords = linepitchInBytes / 4;

 	ret = CDrawThirtyTwoBppBitmapAlphaPM::Construct(aSize);

 	if (ret != KErrNone)

 		return ret;

 	TInt offsetToFirstPixel = displayMode;

 	ret = HAL::Get(aScreenNo,HALData::EDisplayOffsetToFirstPixel, offsetToFirstPixel);

 	if (ret != KErrNone)

 		return ret;

 	iBits = (TUint32*)((TUint32)aBitmapAddress + offsetToFirstPixel);

 	return KErrNone;

 	}

 void CDrawThirtyTwoBppScreenBitmapAlphaPM::OrientationsAvailable(TBool aOrientation[4])

 	{

 	aOrientation[EOrientationNormal]     = ETrue ;

 	aOrientation[EOrientationRotated90]  = ETrue ;

 	aOrientation[EOrientationRotated180] = ETrue ;

 	aOrientation[EOrientationRotated270] = ETrue ;

 	}

 TBool CDrawThirtyTwoBppScreenBitmapAlphaPM::SetOrientation(TOrientation aOrientation)

 	{

 	iOrientation = aOrientation ;

 	return ETrue ;

 	}