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// Copyright (c) 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 "tsurfacehelper.h"
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#include <w32std.h>
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CSurfaceHelper* CSurfaceHelper::NewL()
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{
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CSurfaceHelper* helper = new(ELeave)CSurfaceHelper;
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CleanupStack::PushL(helper);
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helper->ConstructL();
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CleanupStack::Pop(helper);
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return helper;
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}
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CSurfaceHelper::~CSurfaceHelper()
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{
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DestroySurfaces();
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iSurfaces.Close();
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iManager.Close();
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}
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/**
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* Load logical device and open a surface manager
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*/
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void CSurfaceHelper::ConstructL()
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{
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TInt res = iManager.Open();
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if (res != KErrNone)
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{
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User::Leave(res);
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}
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}
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/**
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* Create the surface with the given parameters.
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* The surface will be owned by the instance of this class
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*/
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TSurfaceId CSurfaceHelper::CreateSurfaceL(const TSize& aSize, TUidPixelFormat aPixelFormat, TInt aStride, TInt aBuffers)
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{
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RSurfaceManager::TSurfaceCreationAttributesBuf bf;
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RSurfaceManager::TSurfaceCreationAttributes& b = bf();
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b.iSize.iWidth = aSize.iWidth;
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b.iSize.iHeight = aSize.iHeight;
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b.iBuffers = aBuffers; // number of buffers in the surface
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b.iPixelFormat = aPixelFormat;
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b.iStride = aStride; // Number of bytes between start of one line and start of next
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b.iOffsetToFirstBuffer = 0; // way of reserving space before the surface pixel data
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b.iAlignment = 4; // alignment, 1,2,4,8 byte aligned
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b.iContiguous = EFalse;
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b.iMappable = ETrue;
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TSurfaceId surface = TSurfaceId::CreateNullId();
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User::LeaveIfError(iManager.CreateSurface(bf, surface));
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iSurfaces.AppendL(surface);
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return surface;
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}
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/**
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* Destroy all surfaces wich have been created by the instance of this class
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*/
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void CSurfaceHelper::DestroySurfaces()
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{
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TInt numSurfaces = iSurfaces.Count();
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for (TInt index = 0; index < numSurfaces; index++)
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{
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TSurfaceId surfaceId = iSurfaces[index];
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TInt err = iManager.CloseSurface(surfaceId);
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__ASSERT_DEBUG(err ==KErrNone, User::Panic(_L("CSurfaceHelper::DestroySurfaces"), err));
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}
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iSurfaces.Reset();
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}
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/**
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Fill a rectangle on the given surface.
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@param aSurface The surface to be filled.
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@param aStartPos Where to place the rectangle.
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@param aSize Size of the rectangle.
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@param aColor The colour to fill it with.
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*/
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void CSurfaceHelper::FillRectangleL(const TSurfaceId& aSurface, const TPoint& aStartPos, const TSize& aSize, const TRgb& aColor)
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{
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RSurfaceManager::TInfoBuf infoBuf;
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RSurfaceManager::TSurfaceInfoV01& info = infoBuf();
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User::LeaveIfError(iManager.SurfaceInfo(aSurface, infoBuf));
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TUint32 color = 0;
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if (info.iSize.iHeight<0 || info.iSize.iWidth<0 || info.iStride<0)
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{
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User::Leave(KErrCorrupt);
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}
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if (info.iSize.iHeight==0 || info.iSize.iWidth==0 || info.iStride==0)
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{
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User::Leave(KErrNotReady);
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}
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switch (info.iPixelFormat)
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{
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case EUidPixelFormatXRGB_8888:
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{
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color = aColor.Color16MU();
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#ifdef ALPHA_FIX_24BIT
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color |= ((ALPHA_FIX_24BIT)&0xff)<<24;
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#endif
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break;
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}
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case EUidPixelFormatARGB_8888:
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{
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color = aColor.Color16MA();
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break;
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}
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case EUidPixelFormatARGB_8888_PRE:
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{
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color = aColor.Color16MAP();
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break;
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}
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case EUidPixelFormatRGB_565:
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{
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color = aColor.Color64K();
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break;
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}
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default:
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{
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User::Leave(KErrNotSupported);
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break;
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}
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}
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RChunk chunk;
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User::LeaveIfError(iManager.MapSurface(aSurface, chunk));
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CleanupClosePushL(chunk);
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TUint8* surfacePtr = chunk.Base();
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// Check for out of bounds
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TBool validRect = ETrue;
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TInt surfaceWidth = info.iSize.iWidth;
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TInt surfaceHeight = info.iSize.iHeight;
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// Width and Height
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if ((aStartPos.iX + aSize.iWidth) > surfaceWidth)
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{
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validRect = EFalse;
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}
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if ((aStartPos.iY + aSize.iHeight) > surfaceHeight)
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{
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validRect = EFalse;
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}
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// Starting position
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if ((aStartPos.iX < 0) || (aStartPos.iY < 0))
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{
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validRect = EFalse;
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}
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if (!validRect)
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{
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User::Leave(KErrOverflow);
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}
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if (info.iPixelFormat == EUidPixelFormatRGB_565)
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{//2 bytes per pixel
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if ( info.iSize.iWidth*2>info.iStride)
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{
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User::Leave(KErrOverflow);
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}
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TInt offset;
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User::LeaveIfError(iManager.GetBufferOffset(aSurface, 0, offset));
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TUint16* ptr = reinterpret_cast<TUint16*>(surfacePtr + offset);
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// Fill the rectangle
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TInt yPos = aStartPos.iY;
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TInt xPos = aStartPos.iX;
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for (TInt yy = 0; yy < aSize.iHeight; ++yy)
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{
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ptr = reinterpret_cast<TUint16*>(surfacePtr + (yPos*info.iStride));
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for (TInt xx = 0; xx < aSize.iWidth; ++xx)
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{
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ptr[xPos] = color;
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xPos++;
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}
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xPos = aStartPos.iX;
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yPos++;
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}
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}
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else
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{
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if ( info.iSize.iWidth*4>info.iStride)
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{
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User::Leave(KErrOverflow);
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}
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TInt offset;
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User::LeaveIfError(iManager.GetBufferOffset(aSurface, 0, offset));
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TUint32* ptr = reinterpret_cast<TUint32*>(surfacePtr + offset);
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// Fill the rectangle
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TInt yPos = aStartPos.iY;
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TInt xPos = aStartPos.iX;
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for (TInt yy = 0; yy < aSize.iHeight; ++yy)
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{
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ptr = reinterpret_cast<TUint32*>(surfacePtr+(yPos*info.iStride));
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for (TInt xx = 0; xx < aSize.iWidth; ++xx)
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{
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ptr[xPos] = color;
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xPos++;
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}
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xPos = aStartPos.iX;
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yPos++;
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}
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}
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CleanupStack::PopAndDestroy(&chunk);
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}
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