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__