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// Copyright (c) 2003-2009 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 16 bpp color screen.
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// Include files
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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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/********************************************************************/
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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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/********************************************************************/
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/* Implementation of CDrawSixteenBppScreenBitmap class */
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/********************************************************************/
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void CDrawSixteenBppScreenBitmap::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 *2;
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}
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void CDrawSixteenBppScreenBitmap::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 CDrawSixteenBppScreenBitmap::HorzTwipsPerThousandPixels() const
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{
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if (iSize.iWidth == 0)
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return 0 ;
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TMachineInfoV1Buf miBuf ;
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UserHal::MachineInfo(miBuf) ;
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return miBuf().iPhysicalScreenSize.iWidth * 1000 / iSize.iWidth ;
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}
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TInt CDrawSixteenBppScreenBitmap::VertTwipsPerThousandPixels() const
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{
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if (iSize.iHeight == 0)
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return 0 ;
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TMachineInfoV1Buf miBuf ;
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UserHal::MachineInfo(miBuf) ;
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return miBuf().iPhysicalScreenSize.iHeight * 1000 / iSize.iHeight ;
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}
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/**
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This function initialize the palette. In this mode, there is no palette
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defined
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*/
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TInt CDrawSixteenBppScreenBitmap::InitScreen()
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{
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return KErrNone ;
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}
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/**
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Constructs the CDrawSixteenBppScreenBitmap 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 CDrawSixteenBppScreenBitmap::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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CDrawBitmap::iScanLineWords = linepitchInBytes / 4;
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ret = CDrawSixteenBppBitmap::Construct(aSize);
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if (ret != KErrNone)
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return ret ;
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/* Set the pointer on the first pixel */
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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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/**
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Define the screen orientation available
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*/
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void CDrawSixteenBppScreenBitmap::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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/**
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Set the current display orientation
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*/
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TBool CDrawSixteenBppScreenBitmap::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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