os/mm/mdfdevvideoextensions/nga_mdf_postprocessor/inc/NGAPostProcSessionManager.h
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
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/*
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* Copyright (c) 2008 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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#ifndef __NGAPOSTPROCSESSIONMANAGER_H__
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#define __NGAPOSTPROCSESSIONMANAGER_H__
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#include <graphics/surface.h> //TSurfaceId
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#include <graphics/surfacemanager.h> //RSurfaceManager
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#include <e32std.h>
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#include <e32base.h>
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class RSurfaceUpdateSession;
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class MNGAPostProcSessionManagerObserver;
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class CNGAPostProcNotifier;
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class CNGAPostProcSessionManager
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{
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public: 
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    //  === Constructors and destructor ===
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    /**
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    * Two-phased constructor.   
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    * @return pointer to an instance of CNGAPostProcSessionManager
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    */
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    static CNGAPostProcSessionManager* NewL();
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    /**
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    * Destructor.
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    */
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    ~CNGAPostProcSessionManager();
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public: 
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    /**
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    submits buffer to GCE for displaying.
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    @param  "aBufId"   "ID of the buffer that needs to be displayed."
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    @pre    "This method can only be called before the hwdevice has been initialized with Initialize()."
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    */
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    void PostPicture(const TSurfaceId& aSurfaceId, TInt aBufId, TInt aNumOfBuf, TBool aNotifyRequired);
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    /**
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    Sets the device output format.
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    */
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    void CancelUpdate();
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    /**
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	Removes display from the system, if it is already existing. 
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    @param  "aDisplayId"  "ID of the display that needs to be removed from the system"
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    */
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    void HandleBufferRelease(TInt aBufId, TInt aStatus);
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    /**
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	Removes display from the system, if it is already existing. 
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    @param  "aDisplayId"  "ID of the display that needs to be removed from the system"
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    */
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    void SetObserver(MNGAPostProcSessionManagerObserver& aObserver);
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protected:
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	CNGAPostProcSessionManager();
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    /**
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     *  Symbian 2nd phase constructor .
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     */
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    void ConstructL();
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private: 
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    RSurfaceUpdateSession*      			iSurfaceUpdateSession;
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    MNGAPostProcSessionManagerObserver*		iObserver;
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    RArray<CNGAPostProcNotifier*>			iAOList;
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};    
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#endif //__NGAPOSTPROCSESSIONMANAGER_H__