1 /*

     2 * Copyright (c) 2005 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:  Manipulates the doppler effect of the SoundSource3D.

    15 *

    16 */

    17 

    18 

    19 // INCLUDE FILES

    20 #include <logger.h>

    21 #include "cammsaudiodopplercontrol.h"

    22 

    23 // ============================ MEMBER FUNCTIONS ===============================

    24 

    25 // -----------------------------------------------------------------------------

    26 // CAMMSAudioDopplerControl::NewLC

    27 // Two-phased constructor.

    28 // -----------------------------------------------------------------------------

    29 CAMMSAudioDopplerControl* CAMMSAudioDopplerControl::NewLC(CMMAPlayer* aPlayer)

    30 {

    31     CAMMSAudioDopplerControl* self =

    32         new(ELeave) CAMMSAudioDopplerControl(aPlayer);

    33 

    34     CleanupStack::PushL(self);

    35 

    36     return self;

    37 }

    38 

    39 // Destructor

    40 CAMMSAudioDopplerControl::~CAMMSAudioDopplerControl()

    41 {

    42     LOG( EJavaAMMS, EInfo, "AMMS::CAMMSAudioDopplerControl::~CAMMSAudioDopplerControl");

    43 

    44     // Perform DeallocateControl, if the state change has not yet performed it.

    45     DeallocateControl();

    46     delete(CAudioEffect*)iDopplerEffect;

    47 }

    48 

    49 // -----------------------------------------------------------------------------

    50 // CAMMSAudioDopplerControl::PrepareControlL

    51 // Function which is called after the correct state is set in Player.

    52 // -----------------------------------------------------------------------------

    53 //

    54 void CAMMSAudioDopplerControl::PrepareControlL()

    55 {

    56     // Perform the action only for the first time, skip if called afterwards

    57     if (!iDopplerEffect)

    58     {

    59         LOG( EJavaAMMS, EInfo, "AMMS::CAMMSAudioDopplerControl::PrepareControlL");

    60 

    61         CCustomCommandUtility* customCommandUtility =

    62             CreateCustomCommandUtilityL();

    63 

    64         // Set the base class location effect as CSourceDoppler

    65         // Effect API takes the ownership of customCommandUtility.

    66         iDopplerEffect = CSourceDoppler::NewL(customCommandUtility);

    67     }

    68 }

    69 

    70 // -----------------------------------------------------------------------------

    71 // CAMMSAudioDopplerControl::DeallocateControl

    72 // Function which is called after the correct state is set in Player.

    73 // -----------------------------------------------------------------------------

    74 //

    75 void CAMMSAudioDopplerControl::DeallocateControl()

    76 {

    77     if (iDopplerEffect)

    78     {

    79         LOG( EJavaAMMS, EInfo, "AMMS::CAMMSAudioDopplerControl::DeallocateControl");

    80 

    81         // Doppler for Audio can be disabled or enabled

    82         if (Enabled())

    83         {

    84             TRAPD(err, iDopplerEffect->DisableL());

    85             if (err != KErrNone)

    86             {

    87                 // The only even theoritically possible error code here would be

    88                 // KErrAccessDenied which is a result from Effect API calling

    89                 // ApplyL method without having update rights, but since the

    90                 // Effect is already created, that situation can be discarded.

    91             }

    92         }

    93 

    94         // Delete the Effect API class.

    95         delete(CAudioEffect*)iDopplerEffect;

    96         iDopplerEffect = NULL;

    97     }

    98 }

    99 

   100 const TDesC& CAMMSAudioDopplerControl::ClassName() const

   101 {

   102     return KAMMSAudioDopplerControl;

   103 }

   104 

   105 

   106 // -----------------------------------------------------------------------------

   107 // CAMMSAudioDopplerControl::CAMMSAudioDopplerControl

   108 // C++ default constructor can NOT contain any code, that

   109 // might leave.

   110 // -----------------------------------------------------------------------------

   111 CAMMSAudioDopplerControl::CAMMSAudioDopplerControl(

   112     CMMAPlayer* aPlayer)

   113         : CAMMSDopplerControl(aPlayer)

   114 {

   115 }

   116 //  End of File