1 // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
2 // All rights reserved.
3 // This component and the accompanying materials are made available
4 // under the terms of "Eclipse Public License v1.0"
5 // which accompanies this distribution, and is available
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
8 // Initial Contributors:
9 // Nokia Corporation - initial contribution.
19 TInt CDrawFourBppScreenBitmapGray::InitScreen()
22 GetDrawRect(drawRect);
23 RWindows* window = ::WindowHandler(iScreenNo);
24 window->iDisplayMode = DisplayMode();
25 window->iEpocBitmapSize = drawRect.Size();
26 window->iEpocBitmapLinePitch = (iScanLineWords*4);
31 void CDrawFourBppScreenBitmapGray::OrientationsAvailable(TBool aOrientation[4])
33 aOrientation[EOrientationNormal] = ETrue;
34 aOrientation[EOrientationRotated90] = EFalse;
35 aOrientation[EOrientationRotated180] = EFalse;
36 aOrientation[EOrientationRotated270] = EFalse;
39 void CDrawFourBppScreenBitmapGray::UpdateRect(const TRect& aRect) const
41 ASSERT(aRect.iTl.iX >= 0 && aRect.iTl.iY >= 0);
42 ASSERT(aRect.iBr.iX <= iSize.iWidth);
43 ASSERT(aRect.iBr.iY <= iSize.iHeight);
45 TInt lx = aRect.iTl.iX & ~7;
46 TInt rx = (aRect.iBr.iX + 7) & ~7;
47 TInt wordwidth = (rx - lx) >> 3;
49 for (TInt row = aRect.iTl.iY; row < aRect.iBr.iY; row++)
51 TUint8* destPixel = WinPixelAddress(lx,row);
54 for(TInt word = 0; word < wordwidth; word++)
57 ReadLine(wordx,row,8,&data);
59 TUint8 grayIndex = TUint8((data & 0xf) * 17);
60 destPixel[0] = grayIndex;
61 destPixel[1] = grayIndex;
62 destPixel[2] = grayIndex;
63 grayIndex = TUint8(((data >> 4) & 0xf) * 17);
64 destPixel[3] = grayIndex;
65 destPixel[4] = grayIndex;
66 destPixel[5] = grayIndex;
67 grayIndex = TUint8(((data >> 8) & 0xf) * 17);
68 destPixel[6] = grayIndex;
69 destPixel[7] = grayIndex;
70 destPixel[8] = grayIndex;
71 grayIndex = TUint8(((data >> 12) & 0xf) * 17);
72 destPixel[9] = grayIndex;
73 destPixel[10] = grayIndex;
74 destPixel[11] = grayIndex;
75 grayIndex = TUint8(((data >> 16) & 0xf) * 17);
76 destPixel[12] = grayIndex;
77 destPixel[13] = grayIndex;
78 destPixel[14] = grayIndex;
79 grayIndex = TUint8(((data >> 20) & 0xf) * 17);
80 destPixel[15] = grayIndex;
81 destPixel[16] = grayIndex;
82 destPixel[17] = grayIndex;
83 grayIndex = TUint8(((data >> 24) & 0xf) * 17);
84 destPixel[18] = grayIndex;
85 destPixel[19] = grayIndex;
86 destPixel[20] = grayIndex;
87 grayIndex = TUint8(((data >> 28) & 0xf) * 17);
88 destPixel[21] = grayIndex;
89 destPixel[22] = grayIndex;
90 destPixel[23] = grayIndex;