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 virtual location of the SoundSource3D.

    15 *

    16 */

    17 

    18 

    19 // INCLUDE FILES

    20 #include <logger.h>

    21 #include <e32math.h>

    22 #include "cammsemcspectatorlocationcontrol.h"

    23 

    24 #ifdef _DEBUG

    25 // CONSTANTS

    26 const TInt KAMMSMinRadius = 0;

    27 #endif // _DEBUG

    28 

    29 

    30 // ============================ MEMBER FUNCTIONS ===============================

    31 

    32 // -----------------------------------------------------------------------------

    33 // CAMMSEMCSpectatorLocationControl::NewLC

    34 // Two-phased constructor.

    35 // -----------------------------------------------------------------------------

    36 CAMMSEMCSpectatorLocationControl* CAMMSEMCSpectatorLocationControl::NewLC(

    37     CMMAPlayer* aPlayer)

    38 {

    39     CAMMSEMCSpectatorLocationControl* self =

    40         new(ELeave) CAMMSEMCSpectatorLocationControl(aPlayer);

    41 

    42     CleanupStack::PushL(self);

    43 

    44     return self;

    45 }

    46 

    47 // Destructor

    48 CAMMSEMCSpectatorLocationControl::~CAMMSEMCSpectatorLocationControl()

    49 {

    50     LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCSpectatorLocationControl::CAMMSEMCSpectatorLocationControl");

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

    52     DeallocateControl();

    53 }

    54 

    55 // -----------------------------------------------------------------------------

    56 // CAMMSEMCSpectatorLocationControl::PrepareControlL

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

    58 // -----------------------------------------------------------------------------

    59 //

    60 void CAMMSEMCSpectatorLocationControl::PrepareControlL()

    61 {

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

    63     if (!iMListenerLocationControl)

    64     {

    65         LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCSpectatorLocationControl::PrepareControlL");

    66         //Create Location Effect Control

    67         iStreamControl = (static_cast<CMMAEMCAudioPlayer*>(iMMAPlayer))->StreamControl();

    68         iFactory = (static_cast<CMMAEMCAudioPlayer*>(iMMAPlayer))->MMFactory();

    69 

    70         MEffectControl* temp(NULL);

    71         User::LeaveIfError(iFactory->CreateEffectControl(KListenerLocationEffectControl, temp));

    72         iMListenerLocationControl  = static_cast<MListenerLocationControl*>(temp);

    73         User::LeaveIfError(iStreamControl->AddEffect(*iMListenerLocationControl));

    74         iMListenerLocationControl->Enable();

    75     }

    76 }

    77 

    78 // -----------------------------------------------------------------------------

    79 // CAMMSEMCSpectatorLocationControl::DeallocateControl

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

    81 // -----------------------------------------------------------------------------

    82 //

    83 void CAMMSEMCSpectatorLocationControl::DeallocateControl()

    84 {

    85     if (iMListenerLocationControl)

    86     {

    87         LOG( EJavaAMMS, EInfo, "AMMS::CAMMSEMCSpectatorLocationControl::DeallocateControl");

    88 

    89         // Location for Audio can be disabled or enabled

    90         iMListenerLocationControl->Disable();

    91         //return the control to factory

    92         MEffectControl* temp = iMListenerLocationControl;

    93         iStreamControl->RemoveEffect(*temp);

    94         // Delete the Effect

    95         MEffectControl* tempCtrl = iMListenerLocationControl;

    96         iFactory->DeleteEffectControl(tempCtrl);

    97         iMListenerLocationControl = NULL;

    98     }

    99 }

   100 

   101 const TDesC& CAMMSEMCSpectatorLocationControl::ClassName() const

   102 {

   103     return KAMMSEMCSpectatorLocationControl;

   104 }

   105 

   106 

   107 // -----------------------------------------------------------------------------

   108 // CAMMSEMCSpectatorLocationControl::SetLocationCartesianL

   109 // Moves the object to the new location.

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

   111 void CAMMSEMCSpectatorLocationControl::SetLocationCartesianL(

   112     TInt& aX,

   113     TInt& aY,

   114     TInt& aZ)

   115 {

   116     // Sets the cartesian coordinates for the source location.

   117 

   118     LOG3( EJavaAMMS, EInfo, "AMMS::CAMMSEMCSpectatorLocationControl::SetLocationCartesianL: %d, %d, %d",

   119                aX, aY, aZ);

   120 

   121     iMListenerLocationControl->SetLocationCartesian(aX, aY, aZ);

   122 

   123     // Apply updated settings to EMC API.

   124     iMListenerLocationControl->Apply();

   125 }

   126 

   127 // -----------------------------------------------------------------------------

   128 // CAMMSEMCSpectatorLocationControl::LocationCartesian

   129 // Gets the coordinates of the current location.

   130 // -----------------------------------------------------------------------------

   131 void CAMMSEMCSpectatorLocationControl::LocationCartesian(

   132     TInt& aX, TInt& aY, TInt& aZ)

   133 {

   134     // Gets the cartesian coordinates for the location of the Listener position.

   135     // The coordinates of the positions are in millimeters.

   136     iMListenerLocationControl->LocationCartesian(aX, aY, aZ);

   137 }

   138 

   139 // -----------------------------------------------------------------------------

   140 // CAMMSEMCSpectatorLocationControl::SetLocationSphericalL

   141 // Moves the object to the new location.

   142 // -----------------------------------------------------------------------------

   143 void CAMMSEMCSpectatorLocationControl::SetLocationSphericalL(

   144     TInt& aAzimuth,

   145     TInt& aElevation,

   146     TInt& aRadius)

   147 {

   148     // Check in debug build that aRadius is within valid range.

   149     __ASSERT_DEBUG(aRadius >= KAMMSMinRadius, User::Invariant());

   150 

   151     // Sets the spherical coordinates for the location of the source position.

   152     // The parameters are thousandths of radians

   153 

   154     LOG3( EJavaAMMS, EInfo, "AMMS::CAMMSEMCSpectatorLocationControl::SetLocationSphericalL: %d, %d, %d",

   155                aAzimuth, aElevation, aRadius);

   156 

   157     TInt32 convertedAzimuth = (TInt32)(aAzimuth *

   158                                        KDegToRad * 1000);

   159 

   160     TInt32 convertedElevation = (TInt32)(aElevation *

   161                                          KDegToRad * 1000);

   162 

   163     LOG2( EJavaAMMS, EInfo, "AMMS::CAMMSEMCSpectatorLocationControl::SetLocationSphericalL: %d, %d",

   164                convertedAzimuth, convertedElevation);

   165 

   166     iMListenerLocationControl->SetLocationSpherical(

   167         convertedAzimuth, convertedElevation, (TInt32&)aRadius);

   168 

   169     // Apply updated settings to EMC API.

   170     iMListenerLocationControl->Apply();

   171 }

   172 

   173 // -----------------------------------------------------------------------------

   174 // CAMMSEMCSpectatorLocationControl::CAMMSEMCSpectatorLocationControl

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

   176 // might leave.

   177 // -----------------------------------------------------------------------------

   178 CAMMSEMCSpectatorLocationControl::CAMMSEMCSpectatorLocationControl(CMMAPlayer* aPlayer)

   179         : CAMMSLocationControl(aPlayer)

   180 {

   181     iMMAPlayer = aPlayer;

   182 }

   183 

   184 //  End of File