author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 17 Sep 2010 08:36:49 +0300 | |
changeset 183 | 6a1564a2f3e6 |
permissions | -rw-r--r-- |
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// Copyright (c) 2010 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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/** |
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@file |
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@publishedPartner |
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@prototype |
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*/ |
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#include "eglwindowinterface.h" |
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#include "eglwindow.h" |
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#include <e32base.h> |
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#include <w32std.h> |
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#include <hal.h> |
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EXPORT_C TEglWindowInterface::TEglWindowInterface(EGLNativeWindowType aNativeWindow) : |
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iEglWindow(reinterpret_cast<REglWindowBase*>(aNativeWindow)) |
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{ |
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} |
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EXPORT_C TBool TEglWindowInterface::IsValid() const |
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{ |
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if(iEglWindow->IsRWindow()) |
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{ |
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TInt wsHandle = reinterpret_cast<const RWindow*>(iEglWindow)->WsHandle(); |
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return (wsHandle != 0); |
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} |
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else |
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{ |
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return iEglWindow->IsValid(); |
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} |
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} |
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EXPORT_C TSize TEglWindowInterface::SizeInPixels() const |
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{ |
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if(iEglWindow->IsRWindow()) |
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{ |
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return reinterpret_cast<const RWindow*>(iEglWindow)->Size(); |
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} |
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else |
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{ |
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return iEglWindow->SizeInPixels(); |
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} |
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} |
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EXPORT_C TSize TEglWindowInterface::SizeInTwips() const |
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{ |
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if(iEglWindow->IsRWindow()) |
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{ |
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//This is a simple solution to get the twip size of an RWindow. |
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//A temporary CWsScreenDevice is constructed for the screen that |
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//the RWindow exists on and is used to convert the size in pixels |
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//to a size in twips. The temporary CWsScreenDevice is then destructed. |
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//If this is found to be non-performant, we could use a TLS thread |
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//singleton that lazily creates screen devices and maintains a list |
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//thoughout its lifetime. The singleton could be destroyed though a |
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//static function on TEglWindowInterface as part of eglReleaseThread(). |
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//This represents more complexity and should only be considered as an |
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//optimisation if it is found to be neccessary. Note that use of the HAL |
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//interface is not really an option, since we need to find the pixel |
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//size of the screen and this could be virtualised by the screen. |
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|
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const RWindow* window = reinterpret_cast<const RWindow*>(iEglWindow); |
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RWsSession* winSession = window->Session(); |
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EGL_WINDOW_ASSERT_DEBUG(winSession, EEglWindowPanicRWindowHasNoSession); |
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|
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//Do a placement new to avoid the possible KErrNoMemory error. |
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TUint8 screenDevMem[sizeof(CWsScreenDevice)]; |
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CWsScreenDevice* screenDev = new (screenDevMem) CWsScreenDevice(*winSession); |
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//Nothing we can do about this error. |
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TInt err = screenDev->Construct(window->ScreenNumber()); |
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if(err != KErrNone) |
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{ |
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screenDev->~CWsScreenDevice(); |
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return TSize(0,0); |
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} |
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TSize pixelSize = window->Size(); |
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TInt twipWidth = screenDev->HorizontalPixelsToTwips(pixelSize.iWidth); |
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TInt twipHeight = screenDev->VerticalPixelsToTwips(pixelSize.iHeight); |
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TSize twipSize(twipWidth, twipHeight); |
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screenDev->~CWsScreenDevice(); |
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return twipSize; |
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} |
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else |
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{ |
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return iEglWindow->SizeInTwips(); |
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} |
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} |
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EXPORT_C TInt TEglWindowInterface::ScreenNumber() const |
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{ |
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if(iEglWindow->IsRWindow()) |
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{ |
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return reinterpret_cast<const RWindow*>(iEglWindow)->ScreenNumber(); |
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} |
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else |
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{ |
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return iEglWindow->ScreenNumber(); |
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} |
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} |
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EXPORT_C void TEglWindowInterface::SetBackgroundColor(TRgb aColor, TBool aTriggerRedraw) |
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{ |
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if(iEglWindow->IsRWindow()) |
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{ |
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RWindow* window = reinterpret_cast<RWindow*>(iEglWindow); |
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window->SetBackgroundColor(aColor); |
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if(aTriggerRedraw) |
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{ |
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window->Invalidate(); |
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} |
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} |
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else |
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{ |
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iEglWindow->SetBackgroundColor(aColor, aTriggerRedraw); |
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} |
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} |
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|
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EXPORT_C TInt TEglWindowInterface::SetBackgroundSurface(const TSurfaceConfiguration &aConfiguration, TBool aTriggerRedraw) |
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{ |
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if(iEglWindow->IsRWindow()) |
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{ |
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#ifdef _DEBUG |
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TSurfaceId surface; |
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aConfiguration.GetSurfaceId(surface); |
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EGL_WINDOW_ASSERT_DEBUG(!surface.IsNull(), EEglWindowPanicInvalidSurface); |
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#endif |
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return reinterpret_cast<RWindow*>(iEglWindow)->SetBackgroundSurface(aConfiguration, aTriggerRedraw); |
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} |
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else |
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{ |
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return iEglWindow->SetBackgroundSurface(aConfiguration, aTriggerRedraw); |
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} |
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} |
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|
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EXPORT_C void TEglWindowInterface::RemoveBackgroundSurface(TBool aTriggerRedraw) |
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{ |
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if(iEglWindow->IsRWindow()) |
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{ |
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RWindow* window = reinterpret_cast<RWindow*>(iEglWindow); |
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RWsSession* winSession = window->Session(); |
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EGL_WINDOW_ASSERT_DEBUG(winSession, EEglWindowPanicRWindowHasNoSession); |
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window->RemoveBackgroundSurface(aTriggerRedraw); |
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} |
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else |
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{ |
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iEglWindow->RemoveBackgroundSurface(aTriggerRedraw); |
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} |
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} |