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".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #include "SCDRAW.H"

    17 #include "_WININC.H"

    18 

    19 TInt CDrawSixteenBppScreenBitmap::InitScreen()

    20 	{

    21 	TRect drawRect;

    22 	GetDrawRect(drawRect);

    23     RWindows* window = ::WindowHandler(iScreenNo);

    24 	window->iDisplayMode = DisplayMode();

    25 	window->iEpocBitmapSize = drawRect.Size();

    26 	window->iEpocBitmapLinePitch = (iScanLineWords*4);

    27 

    28 	return KErrNone;

    29 	}

    30 

    31 TBool CDrawSixteenBppScreenBitmap::SetOrientation(TOrientation aOrientation)

    32 	{

    33 	if (aOrientation == iEmulatorOrientation)

    34 		return ETrue;

    35 

    36 	SetScreenOrientation(aOrientation);

    37 	iEmulatorOrientation = aOrientation;

    38 	iOrientation = aOrientation ;

    39 	return ETrue;

    40 	}

    41 

    42 void CDrawSixteenBppScreenBitmap::UpdateRect(const TRect& aRect) const

    43 	{

    44 	ASSERT(aRect.iTl.iX >= 0 && aRect.iTl.iY >= 0);

    45 #if defined(_DEBUG)

    46 	if (iOrientation&1)

    47 		{

    48 		ASSERT(aRect.iBr.iX <= iSize.iHeight);

    49 		ASSERT(aRect.iBr.iY <= iSize.iWidth);

    50 		}

    51 	else

    52 		{

    53 		ASSERT(aRect.iBr.iX <= iSize.iWidth);

    54 		ASSERT(aRect.iBr.iY <= iSize.iHeight);

    55 		}

    56 #endif

    57 	TInt scanLineLen=iLongWidth;

    58 	TInt srcPixelStep=1;

    59 	TPoint srcStart(aRect.iTl);

    60 	switch(iOrientation)

    61 		{

    62 	case CFbsDrawDevice::EOrientationRotated90:

    63 		srcPixelStep=scanLineLen;

    64 		scanLineLen=-1;

    65 		srcStart.iX=iSize.iWidth-1-aRect.iTl.iY;

    66 		srcStart.iY=aRect.iTl.iX;

    67 		break;

    68 	case CFbsDrawDevice::EOrientationRotated180:

    69 		srcPixelStep=-1;

    70 		scanLineLen=-scanLineLen;

    71 		srcStart.iX=iSize.iWidth-1-aRect.iTl.iX;

    72 		srcStart.iY=iSize.iHeight-1-aRect.iTl.iY;

    73 		break;

    74 	case CFbsDrawDevice::EOrientationRotated270:

    75 		srcPixelStep=-scanLineLen;

    76 		scanLineLen=1;

    77 		srcStart.iX=aRect.iTl.iY;

    78 		srcStart.iY=iSize.iHeight-1-aRect.iTl.iX;

    79 		break;

    80 		}

    81 	TUint16* srcePtr = CDrawSixteenBppBitmapCommon::PixelAddress(srcStart.iX,srcStart.iY);

    82 	TUint16* srcePtrLimit = srcePtr + aRect.Width()*srcPixelStep;

    83 	TInt rowMax = aRect.iTl.iY+aRect.Height();

    84 	for(TInt row = aRect.iTl.iY; row < rowMax; row++)

    85 		{

    86 		TUint16* tempSrcePtr = srcePtr;

    87 		TUint8* destPixel = WinPixelAddress(aRect.iTl.iX,row);

    88 

    89 		while (tempSrcePtr != srcePtrLimit)

    90 			{

    91 			destPixel[0]=TUint8((*tempSrcePtr&0x001f)<<3);

    92 			destPixel[0]=TUint8(destPixel[0]+(destPixel[0]>>5));

    93 			destPixel[1]=TUint8((*tempSrcePtr&0x07e0)>>3);

    94 			destPixel[1]=TUint8(destPixel[1]+(destPixel[1]>>6));

    95 			destPixel[2]=TUint8((*tempSrcePtr&0xf800)>>8);

    96 			destPixel[2]=TUint8(destPixel[2]+(destPixel[2]>>5));

    97 			tempSrcePtr+=srcPixelStep;

    98 			

    99 			destPixel += 3;

   100 			}

   101 

   102 		srcePtr += scanLineLen;

   103 		srcePtrLimit += scanLineLen;

   104 		}

   105 	}

   106