author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 19 Aug 2010 10:48:02 +0300 | |
branch | RCL_3 |
changeset 50 | 1801340c26a2 |
parent 0 | 15bf7259bb7c |
permissions | -rw-r--r-- |
0
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// Copyright (c) 2008-2009 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 "screencaptureutil.h" |
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#include <e32std.h> |
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#include <e32base.h> |
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#include "panic.h" |
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#include <fbs.h> |
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#include <graphics/wsgraphicscontext.h> |
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#include <graphics/wsdisplaycontrol.h> |
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#include <graphics/wsscene.h> |
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#include <graphics/wsdisplaymapping.h> |
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//#include <graphics/testscreencapture.h> |
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//#include <graphics/wsscreendeviceutils.h> |
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#include <graphics/wsscreendevice.h> |
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CScreenCaptureUtil* CScreenCaptureUtil::NewL(CWsRenderStage* aOwner) |
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{ |
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CScreenCaptureUtil * util = new(ELeave) CScreenCaptureUtil; |
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CleanupStack::PushL(util); |
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util->ConstructL(aOwner); |
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CleanupStack::Pop(util); |
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return util; |
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} |
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void CScreenCaptureUtil::ConstructL(CWsRenderStage* aOwner) |
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{ |
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// initialise the references to the interfaces of interest |
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iScene = aOwner->ObjectInterface<MWsScene>(); |
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STD_ASSERT_ALWAYS(iScene, EPluginPanicSceneMissing); |
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iScreenDevice = aOwner->ObjectInterface<MWsScreenDevice>(); |
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STD_ASSERT_ALWAYS(iScreenDevice, EPluginPanicSceneMissing); |
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iDisplayMapping = aOwner->ObjectInterface<MWsDisplayMapping>(); |
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// create the local surface |
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User::LeaveIfError(iSurfaceManager.Open()); |
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User::LeaveIfError(iSurfaceUpdateSession.Connect()); |
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} |
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CScreenCaptureUtil::CScreenCaptureUtil() |
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{ |
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} |
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CScreenCaptureUtil::~CScreenCaptureUtil() |
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{ |
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iScene->UnregisterSurface(iLocalSurface); |
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iSurfaceManager.CloseSurface(iLocalSurface); |
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iSurfaceManager.Close(); |
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iSurfaceUpdateSession.Close(); |
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} |
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void CScreenCaptureUtil::ComposeScreenL(TInt aHandle) |
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{ |
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TInt ret = KErrNone; |
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//Let's duplicate the bitmap |
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CFbsBitmap* bitmap=new(ELeave) CFbsBitmap(); |
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CleanupStack::PushL(bitmap); |
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TInt r = bitmap->Duplicate(aHandle); |
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if (r == KErrNoMemory) |
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{ |
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User::Leave(KErrNoMemory); |
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} |
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ret = KErrBadHandle; |
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if (r == KErrNone) |
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{ |
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CreateLocalSurfaceL(); |
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// check that the bitmap format is matching our requirements |
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if (VerifyBitmapFormatL(*bitmap)) |
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{ |
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ret = iScene->RegisterSurface(iLocalSurface); |
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if (ret == KErrNone) |
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{ |
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TRequestStatus cRs = KErrNone; |
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iScene->ComposePendingScene(iLocalSurface, &cRs); |
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User::WaitForRequest(cRs); |
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ret = CopySurfaceToBitmapL(*bitmap); |
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} |
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} |
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else |
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{ |
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// we accept only matching bitmap formats |
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ret = KErrArgument; |
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} |
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} |
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|
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CleanupStack::PopAndDestroy(bitmap); |
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107 |
} |
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108 |
/* |
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void CScreenCaptureUtil::TranslateExtentL(const TWsScsComposeScreenCommand& aMessage) |
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110 |
{ |
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TPoint srcTopLeft(aMessage.iParameter.iExtent.iTl.iX, aMessage.iParameter.iExtent.iTl.iY); |
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TPoint srcBottomRight(aMessage.iParameter.iExtent.iBr.iX, aMessage.iParameter.iExtent.iBr.iY); |
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113 |
TRect rectSrc(srcTopLeft, srcBottomRight); |
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TRect rectRes; |
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TInt ret = iDisplayMapping->MapCoordinates(EApplicationSpace, rectSrc, ECompositionSpace, rectRes); |
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116 |
aUtils.ReplyBuf(&rectRes, sizeof(TRect)); |
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117 |
aUtils.SetReply(ret); |
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118 |
} |
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119 |
*/ |
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120 |
TSurfaceId CScreenCaptureUtil::CreateSurfaceL(const TSize& aSize, TUidPixelFormat aPixelFormat, TInt aStride) |
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121 |
{ |
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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 = 1; // 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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133 |
|
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TSurfaceId surface = TSurfaceId::CreateNullId(); |
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User::LeaveIfError(iSurfaceManager.CreateSurface(bf, surface)); |
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136 |
return surface; |
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137 |
} |
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138 |
|
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139 |
void CScreenCaptureUtil::CreateLocalSurfaceL() |
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140 |
{ |
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141 |
TSize surfaceSize; |
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142 |
GetCompositionAreaSize(surfaceSize); |
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143 |
|
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144 |
if (!iLocalSurface.IsNull()) |
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145 |
{ |
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146 |
RSurfaceManager::TInfoBuf infoBuf; |
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RSurfaceManager::TSurfaceInfoV01& info = infoBuf(); |
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148 |
if ((KErrNone != iSurfaceManager.SurfaceInfo(iLocalSurface, infoBuf)) || |
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149 |
(info.iSize != surfaceSize)) |
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150 |
{ |
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151 |
iScene->UnregisterSurface(iLocalSurface); |
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152 |
iSurfaceManager.CloseSurface(iLocalSurface); |
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153 |
iLocalSurface = TSurfaceId::CreateNullId(); |
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154 |
} |
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155 |
} |
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|
156 |
|
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157 |
if (iLocalSurface.IsNull()) |
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158 |
{ |
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|
159 |
iLocalSurface = CreateSurfaceL(surfaceSize, KSurfacePixelFormat, KSurfaceBytesPerPixel*surfaceSize.iWidth); |
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160 |
} |
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161 |
} |
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|
162 |
|
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163 |
TBool CScreenCaptureUtil::VerifyBitmapFormatL(const CFbsBitmap& aBitmap) |
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164 |
{ |
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165 |
RSurfaceManager::TInfoBuf infoBuf; |
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166 |
RSurfaceManager::TSurfaceInfoV01& info = infoBuf(); |
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167 |
User::LeaveIfError(iSurfaceManager.SurfaceInfo(iLocalSurface, infoBuf)); |
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|
168 |
|
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169 |
return ((info.iSize == aBitmap.SizeInPixels()) && (EColor16MU == aBitmap.DisplayMode())); |
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170 |
} |
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|
171 |
|
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172 |
void CScreenCaptureUtil::GetCompositionAreaSize(TSize& aSize) const |
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173 |
{ |
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174 |
TSize uiSize; |
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175 |
uiSize = iScreenDevice->SizeInPixels(); |
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176 |
TRect uiRect(TPoint(0,0), uiSize); |
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177 |
TRect compositionRect; |
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|
178 |
iDisplayMapping->MapCoordinates(EFullScreenSpace, uiRect, ECompositionSpace, compositionRect); |
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179 |
aSize = compositionRect.Size(); |
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180 |
} |
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|
181 |
|
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182 |
TInt CScreenCaptureUtil::CopySurfaceToBitmapL(CFbsBitmap& aCopyToBitmap) |
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|
183 |
{ |
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|
184 |
RSurfaceManager::TInfoBuf infoBuf; |
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|
185 |
RSurfaceManager::TSurfaceInfoV01& info = infoBuf(); |
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|
186 |
|
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187 |
User::LeaveIfError(iSurfaceManager.SurfaceInfo(iLocalSurface, infoBuf)); |
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|
188 |
|
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|
189 |
TInt bytesPerPixel=0; |
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190 |
TDisplayMode bitmapMode = ENone; |
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|
191 |
|
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|
192 |
switch (info.iPixelFormat) |
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|
193 |
{ |
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|
194 |
case EUidPixelFormatXRGB_8888: |
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|
195 |
{ |
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196 |
bitmapMode = EColor16MU; |
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|
197 |
bytesPerPixel = 4; |
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198 |
break; |
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199 |
} |
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200 |
default: |
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|
201 |
{ |
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202 |
return KErrCorrupt; |
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203 |
} |
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204 |
} |
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|
205 |
|
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206 |
if ((aCopyToBitmap.SizeInPixels() != info.iSize) || (aCopyToBitmap.DisplayMode() != bitmapMode)) |
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207 |
{ |
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208 |
return KErrCorrupt; |
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209 |
} |
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Revision: 201003
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210 |
|
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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RChunk chunk; |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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212 |
CleanupClosePushL(chunk); |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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User::LeaveIfError(iSurfaceManager.MapSurface(iLocalSurface, chunk)); |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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TUint8* surfacePtr = chunk.Base(); |
15bf7259bb7c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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TUint8* bitmapPtr = (TUint8*)aCopyToBitmap.DataAddress(); |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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TInt copyBytes=info.iSize.iWidth*bytesPerPixel; |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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for (TInt y=0; y<info.iSize.iHeight; y++) |
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Revision: 201003
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218 |
{ |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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Mem::Copy(bitmapPtr,surfacePtr,copyBytes); |
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Revision: 201003
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surfacePtr += info.iStride; |
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Revision: 201003
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bitmapPtr += aCopyToBitmap.DataStride(); |
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222 |
} |
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Revision: 201003
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223 |
CleanupStack::PopAndDestroy(&chunk); |
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return KErrNone; |
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Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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} |