os/mm/mdfdevvideoextensions/nga_mdf_postprocessor_shai/inc/NGAPostProcSessionManager.h
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
     1 /*
     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
     3 * All rights reserved.
     4 * This component and the accompanying materials are made available
     5 * under the terms of "Eclipse Public License v1.0"
     6 * which accompanies this distribution, and is available
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
     8 *
     9 * Initial Contributors:
    10 * Nokia Corporation - initial contribution.
    11 *
    12 * Contributors:
    13 *
    14 * Description:
    15 *
    16 */
    17 
    18 
    19 #ifndef __NGAPOSTPROCSESSIONMANAGER_H__
    20 #define __NGAPOSTPROCSESSIONMANAGER_H__
    21 
    22 #include <graphics/surface.h> //TSurfaceId
    23 #include <graphics/surfacemanager.h> //RSurfaceManager
    24 #include <e32std.h>
    25 #include <e32base.h>
    26 
    27 class RSurfaceUpdateSession;
    28 class MNGAPostProcSessionManagerObserver;
    29 class CNGAPostProcNotifier;
    30 
    31 class CNGAPostProcSessionManager: public CBase
    32 {
    33 friend class CNGAPostProcNotifier;
    34 
    35 public: 
    36     //  === Constructors and destructor ===
    37     /**
    38     * Two-phased constructor.   
    39     * @return pointer to an instance of CNGAPostProcSessionManager
    40     */
    41     static CNGAPostProcSessionManager* NewL();
    42 
    43     /**
    44     * Destructor.
    45     */
    46     ~CNGAPostProcSessionManager();
    47 
    48 public: 
    49     
    50     /**
    51     submits buffer to GCE for displaying.
    52 
    53     @param  "aBufId"   "ID of the buffer that needs to be displayed."
    54     @pre    "This method can only be called before the hwdevice has been initialized with Initialize()."
    55     */
    56     TInt PostPicture(const TSurfaceId& aSurfaceId, TInt aBufId, TBool aNotifyRequired);
    57 
    58     
    59     
    60     /**
    61 	Removes display from the system, if it is already existing. 
    62 
    63     @param  "aDisplayId"  "ID of the display that needs to be removed from the system"
    64     */
    65     void HandleBufferRelease(TInt aBufId, TInt aStatus);
    66     
    67     /**
    68 	Removes display from the system, if it is already existing. 
    69 
    70     @param  "aDisplayId"  "ID of the display that needs to be removed from the system"
    71     */
    72     void SetObserver(MNGAPostProcSessionManagerObserver& aObserver);
    73 	  
    74 	
    75 	void CreateNotifierL(TInt aNumSurfaceBuffers);
    76 	
    77 	void CancelNotifiers(); 
    78 	  
    79 protected:
    80 	CNGAPostProcSessionManager();
    81     /**
    82      *  Symbian 2nd phase constructor .
    83      */
    84     void ConstructL();
    85 
    86 private:
    87     /**
    88     Cancels Surface Update Notifications
    89     */
    90     void CancelUpdate();
    91     
    92 private: 
    93 
    94     RSurfaceUpdateSession*      			iSurfaceUpdateSession;
    95     MNGAPostProcSessionManagerObserver*		iObserver;
    96     RPointerArray<CNGAPostProcNotifier>		iAOList;
    97 };    
    98 
    99 #endif //__NGAPOSTPROCSESSIONMANAGER_H__