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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 "SCDRAW.H"
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#include "_WININC.H"
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TInt CDrawFourBppScreenBitmapGray::InitScreen()
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{
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TRect drawRect;
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GetDrawRect(drawRect);
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RWindows* window = ::WindowHandler(iScreenNo);
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window->iDisplayMode = DisplayMode();
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window->iEpocBitmapSize = drawRect.Size();
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window->iEpocBitmapLinePitch = (iScanLineWords*4);
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return KErrNone;
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}
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void CDrawFourBppScreenBitmapGray::OrientationsAvailable(TBool aOrientation[4])
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{
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aOrientation[EOrientationNormal] = ETrue;
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aOrientation[EOrientationRotated90] = EFalse;
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aOrientation[EOrientationRotated180] = EFalse;
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aOrientation[EOrientationRotated270] = EFalse;
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}
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void CDrawFourBppScreenBitmapGray::UpdateRect(const TRect& aRect) const
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{
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ASSERT(aRect.iTl.iX >= 0 && aRect.iTl.iY >= 0);
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ASSERT(aRect.iBr.iX <= iSize.iWidth);
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ASSERT(aRect.iBr.iY <= iSize.iHeight);
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TInt lx = aRect.iTl.iX & ~7;
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TInt rx = (aRect.iBr.iX + 7) & ~7;
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TInt wordwidth = (rx - lx) >> 3;
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for (TInt row = aRect.iTl.iY; row < aRect.iBr.iY; row++)
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{
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TUint8* destPixel = WinPixelAddress(lx,row);
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TInt wordx = lx;
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for(TInt word = 0; word < wordwidth; word++)
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{
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TUint32 data;
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ReadLine(wordx,row,8,&data);
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TUint8 grayIndex = TUint8((data & 0xf) * 17);
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destPixel[0] = grayIndex;
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destPixel[1] = grayIndex;
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destPixel[2] = grayIndex;
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grayIndex = TUint8(((data >> 4) & 0xf) * 17);
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destPixel[3] = grayIndex;
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destPixel[4] = grayIndex;
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destPixel[5] = grayIndex;
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grayIndex = TUint8(((data >> 8) & 0xf) * 17);
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destPixel[6] = grayIndex;
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destPixel[7] = grayIndex;
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destPixel[8] = grayIndex;
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grayIndex = TUint8(((data >> 12) & 0xf) * 17);
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destPixel[9] = grayIndex;
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destPixel[10] = grayIndex;
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destPixel[11] = grayIndex;
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grayIndex = TUint8(((data >> 16) & 0xf) * 17);
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destPixel[12] = grayIndex;
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destPixel[13] = grayIndex;
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destPixel[14] = grayIndex;
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grayIndex = TUint8(((data >> 20) & 0xf) * 17);
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destPixel[15] = grayIndex;
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destPixel[16] = grayIndex;
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destPixel[17] = grayIndex;
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grayIndex = TUint8(((data >> 24) & 0xf) * 17);
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destPixel[18] = grayIndex;
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destPixel[19] = grayIndex;
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destPixel[20] = grayIndex;
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grayIndex = TUint8(((data >> 28) & 0xf) * 17);
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destPixel[21] = grayIndex;
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destPixel[22] = grayIndex;
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destPixel[23] = grayIndex;
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destPixel += 24;
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wordx += 8;
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}
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}
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}
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