graphicsdeviceinterface/screendriver/smomap/sccol24u.cpp
author hgs
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permissions -rw-r--r--
201037_1
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// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// This module implements the class for a 24 bpp unpack color screen.
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// 
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//
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/**
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 @file
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*/
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#include <hal.h>
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#include <e32std.h>
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#include <bitdraw.h>
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#include "scdraw.h"
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void CDrawUTwentyFourBppScreenBitmap::SetSize(const TSize& aSize) 
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	{
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    CDrawBitmap::SetSize(aSize);
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    __ASSERT_DEBUG(iSize == aSize, User::Invariant());
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	iLongWidth = iScanLineWords;
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	}
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void CDrawUTwentyFourBppScreenBitmap::SetDisplayMode(CFbsDrawDevice* aDrawDevice)
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	{
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	CopyOldSettings(aDrawDevice);
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	InitScreen();
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	}
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TInt CDrawUTwentyFourBppScreenBitmap::HorzTwipsPerThousandPixels() const
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	{
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	if (iSize.iWidth == 0)
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		return 0;
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    TInt displayMode;
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    TInt r = HAL::Get(iScreenNo, HAL::EDisplayMode, displayMode);
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    if (r != KErrNone)
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    	return 0;
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    TInt width = displayMode;
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    r = HAL::Get(iScreenNo, HAL::EDisplayXTwips, width);
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	if (r != KErrNone)
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    	return 0;
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    return (width * 1000) / iSize.iWidth;
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	}
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TInt CDrawUTwentyFourBppScreenBitmap::VertTwipsPerThousandPixels() const
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	{
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	if (iSize.iHeight == 0)
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		return 0;
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    TInt displayMode;
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    TInt r = HAL::Get(iScreenNo, HAL::EDisplayMode, displayMode);
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    if (r != KErrNone)
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    	return 0;
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    TInt height = displayMode;
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    r = HAL::Get(iScreenNo, HAL::EDisplayYTwips, height);
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    if (r != KErrNone)
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    	return 0;
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    return (height * 1000) / iSize.iHeight;
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	}
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TInt CDrawUTwentyFourBppScreenBitmap::InitScreen()
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	{
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	return KErrNone;
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	}
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TInt CDrawUTwentyFourBppScreenBitmap::ConstructScreenL(TInt aScreenNo, TAny* aBitmapAddress, TSize aSize)
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	{
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    iScreenNo = aScreenNo;
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    TInt displayMode;
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    TInt ret = HAL::Get(aScreenNo, HALData::EDisplayMode, displayMode);
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    if (ret != KErrNone)
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    	return ret;
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    TInt linepitchInBytes = displayMode;
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    ret = HAL::Get(aScreenNo,HALData::EDisplayOffsetBetweenLines,linepitchInBytes);
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    if (ret != KErrNone)
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    	return ret;
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	iScanLineWords = linepitchInBytes / 4;
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	ret = CDrawUTwentyFourBppBitmap::Construct(aSize);
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	if (ret != KErrNone)
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		return ret;
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	TInt offsetToFirstPixel = displayMode;
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	ret = HAL::Get(aScreenNo,HALData::EDisplayOffsetToFirstPixel, offsetToFirstPixel);
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	if (ret != KErrNone)
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		return ret;
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	iBits = (TUint32*)((TUint32)aBitmapAddress + offsetToFirstPixel);
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	return KErrNone;
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	}
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void CDrawUTwentyFourBppScreenBitmap::OrientationsAvailable(TBool aOrientation[4])
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	{
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	aOrientation[EOrientationNormal]     = ETrue;
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	aOrientation[EOrientationRotated90]  = ETrue;
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	aOrientation[EOrientationRotated180] = ETrue;
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	aOrientation[EOrientationRotated270] = ETrue;
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	}
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TBool CDrawUTwentyFourBppScreenBitmap::SetOrientation(TOrientation aOrientation)
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	{
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	iOrientation = aOrientation ;
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	return ETrue ;
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	}
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   124