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os/mm/mdfdevvideoextensions/nga_mdf_postprocessor_shai/src/NGAPostProcSessionManager.cpp
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib. 
     1 /*

     2 * Copyright (c) 2006 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 #include <e32base.h>

    20 #include <graphics/surfaceupdateclient.h> //RSurfaceUpdateSession

    21 #include <graphics/surfacemanager.h> //RSurfaceManager

    22 #include <graphics/suerror.h> //KAllScreens

    23  

    24 #include "NGAPostProcSessionManager.h" 

    25 #include "NGAPostProcSessionManagerObserver.h"

    26 #include "MdfRDebug.h"

    27 #include "NGAPostProcNotifier.h"

    28 

    29 // --- Constants ---

    30 const TInt KMessageSlots      = 4; 

    31 

    32 //**************************************************

    33 

    34 CNGAPostProcSessionManager* CNGAPostProcSessionManager::NewL() 

    35 { 

    36    PP_DEBUG(_L("CNGAPostProcSessionManager:NewL() ++"));

    37 

    38     CNGAPostProcSessionManager* self = new (ELeave) CNGAPostProcSessionManager; 

    39     CleanupStack::PushL(self);

    40     self->ConstructL(); 

    41     CleanupStack::Pop();

    42 

    43    PP_DEBUG(_L("CNGAPostProcSessionManager:NewL() --"));

    44     return self; 

    45 }

    46 

    47 CNGAPostProcSessionManager::CNGAPostProcSessionManager() 

    48 :iSurfaceUpdateSession(NULL),

    49  iObserver(NULL)

    50  

    51 {

    52 }

    53 

    54 void CNGAPostProcSessionManager::ConstructL() 

    55 { 

    56    PP_DEBUG(_L("CNGAPostProcSessionManager[%x]:ConstructL() ++"), this);

    57     

    58     iSurfaceUpdateSession = new (ELeave) RSurfaceUpdateSession();

    59     User::LeaveIfError(iSurfaceUpdateSession->Connect(KMessageSlots));

    60     

    61    PP_DEBUG(_L("CNGAPostProcSessionManager[%x]:ConstructL() --"), this);

    62 }

    63 

    64 void CNGAPostProcSessionManager::CreateNotifierL(TInt aNumSurfaceBuffers)

    65     {

    66     PP_DEBUG(_L("CNGAPostProcSessionManager[%x]:CreateNotifierL() ++"), this);

    67     

    68     CNGAPostProcNotifier* notifier;

    69     for(TInt index = 0; index < aNumSurfaceBuffers; ++index)

    70         {

    71         notifier = CNGAPostProcNotifier::NewL(*this);

    72         CleanupStack::PushL(notifier);

    73         

    74         iAOList.AppendL(notifier); 

    75         

    76         CleanupStack::Pop();

    77         }   

    78     PP_DEBUG(_L("CNGAPostProcSessionManager[%x]:CreateNotifierL() --"), this);

    79     }

    80 

    81 CNGAPostProcSessionManager::~CNGAPostProcSessionManager()

    82 {

    83    PP_DEBUG(_L("CNGAPostProcSessionManager[%x]:~() ++"), this);

    84    //Its safer to destry notifiers before surfaceupdatesession object since notifiers

    85    //guarantee synchronous cancellation.

    86    iAOList.ResetAndDestroy();

    87    

    88     if(iSurfaceUpdateSession)

    89     {

    90     	CancelUpdate();

    91     	iSurfaceUpdateSession->Close();

    92     	delete iSurfaceUpdateSession;

    93     	iSurfaceUpdateSession = NULL;

    94 	}

    95     

    96     

    97    PP_DEBUG(_L("CNGAPostProcSessionManager[%x]:~() --"), this);

    98 }

    99 

   100 TInt CNGAPostProcSessionManager::PostPicture(const TSurfaceId& aSurfaceId,

   101 								TInt aBufId, TBool aNotifyRequired) 

   102 { 

   103    PP_DEBUG(_L("CNGAPostProcSessionManager[%x]:PostPicture() ++"), this);

   104    TInt err = KErrNone;

   105 	if(aNotifyRequired)

   106 	{

   107 	    CNGAPostProcNotifier* notifier = NULL;

   108 		for(TInt j=0; j < iAOList.Count(); j++)

   109 		{

   110             //notifier = iAOList[j];

   111             if(!iAOList[j]->IsActive())

   112             {

   113                 notifier = iAOList[j];

   114                 iAOList.Remove(j);

   115                 //iAOList.Compress(); //why this is required? may create fragmentation.

   116                 break;

   117             }

   118 		}

   119 		if(!notifier)

   120 		{

   121 			

   122 			return KErrInUse;

   123 	        

   124 		}

   125 		

   126 		notifier->SetBufferId(aBufId);

   127 		notifier->Activate();

   128 		iSurfaceUpdateSession->NotifyWhenAvailable(notifier->iStatus);

   129 		iAOList.Append(notifier);

   130 		

   131 		

   132 	}

   133 	err = iSurfaceUpdateSession->SubmitUpdate(KAllScreens, aSurfaceId, aBufId);

   134 

   135    PP_DEBUG(_L("CNGAPostProcSessionManager[%x]:PostPicture() -- err = %d"), this, err);

   136    return err;

   137 }

   138 

   139 void CNGAPostProcSessionManager::CancelUpdate() 

   140 { 

   141    PP_DEBUG(_L("CNGAPostProcSessionManager[%x]:CancelUpdate() ++"), this);

   142 	iSurfaceUpdateSession->CancelAllUpdateNotifications();

   143    PP_DEBUG(_L("CNGAPostProcSessionManager[%x]:CancelUpdate() --"), this);

   144 }

   145 

   146 void CNGAPostProcSessionManager::CancelNotifiers() 

   147 { 

   148     

   149    PP_DEBUG(_L("CNGAPostProcSessionManager[%x]:CancelNotifiers() ++"), this);

   150    TInt notifierCount = iAOList.Count();

   151    for (TInt i = notifierCount - 1; i >= 0; --i) //reverse loop since the active notifier is appended to the list

   152    {

   153        if (iAOList[i]->IsActive())

   154        {

   155            iAOList[i]->Cancel();

   156        }

   157        else

   158        {

   159            break;

   160        }

   161    }

   162    

   163 

   164    

   165    PP_DEBUG(_L("CNGAPostProcSessionManager[%x]:CancelNotifiers() --"), this);

   166 

   167 	

   168 	

   169 }

   170 

   171 void CNGAPostProcSessionManager::HandleBufferRelease(TInt aBufId, TInt aStatus) 

   172 { 

   173    PP_DEBUG(_L("CNGAPostProcSessionManager[%x]:HandleBufferRelease() ++"), this);

   174     if(iObserver)

   175     {

   176 		iObserver->BufferAvailable(aBufId, aStatus);

   177 	}

   178    PP_DEBUG(_L("CNGAPostProcSessionManager[%x]:HandleBufferRelease() --"), this);

   179 }

   180 

   181 void CNGAPostProcSessionManager::SetObserver(MNGAPostProcSessionManagerObserver& aObserver) 

   182 { 

   183    PP_DEBUG(_L("CNGAPostProcSessionManager[%x]:SetClockSource() ++"), this);

   184 	iObserver = &aObserver;

   185    PP_DEBUG(_L("CNGAPostProcSessionManager[%x]:SetClockSource() --"), this);

   186 }

   187
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