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// Copyright (c) 1997-2009 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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//
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#include <hal.h>
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#include "scdraw.h"
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/**
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Constructs the CDrawScreenBitmap object.
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@param aScreenNo Screen number. It will be used in HAL::Get() calls.
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@param aBitmapAddress The screen memory address.
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@param aSize Screen size
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@return System-wide error codes, KErrNone if the construction was successfull.
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*/
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TInt CDrawScreenBitmap::ConstructScreen(TInt aScreenNo, TAny* aBitmapAddress,TSize aSize)
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{
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iScreenNo = aScreenNo;
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TInt ret = SCREEN_LAYOUT_BASE_BITMAP::Construct(aSize);
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if (ret != KErrNone)
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return ret;
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//fixup for emulating smaller screen
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TInt offset = 0;
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ret = HAL::Get(iScreenNo, HALData::EDisplayOffsetBetweenLines, offset);
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if (ret == KErrNone && (offset != aSize.iWidth))
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{
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iLongWidth = offset;
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iScanLineWords = iLongWidth / 4;
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User::Heap().Free(iScanLineBuffer);
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iScanLineBuffer = (TUint32*)(User::Heap().Alloc(offset));
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if(iScanLineBuffer == NULL)
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return KErrNoMemory;
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}
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//fixup for emulating smaller screen
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offset = 0; // Pass in display mode
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ret = HAL::Get(iScreenNo, HALData::EDisplayOffsetToFirstPixel,offset);
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iBits = (TUint32*)aBitmapAddress;
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iBits += offset / sizeof(TUint32);
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return ret;
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}
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void CDrawScreenBitmap::SetDisplayMode(CFbsDrawDevice* aDrawDevice)
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{
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CopyOldSettings(aDrawDevice);
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}
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void CDrawScreenBitmap::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 CDrawScreenBitmap::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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TInt CDrawScreenBitmap::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 twips = 0;
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HAL::Get(iScreenNo, HALData::EDisplayXTwips,twips);
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return twips * 1000 / iSize.iWidth; // iSize gets iWidth and iHeight swapped by changing the orientation so always use iWidth
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}
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TInt CDrawScreenBitmap::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 twips = 0;
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HAL::Get(iScreenNo, HALData::EDisplayYTwips,twips);
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return twips * 1000 / iSize.iHeight;
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}
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