/*

* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Engine class that uses the Effects API and saves changes.

*

*/

// INCLUDE FILES

#include <centralrepository.h>

#include <CustomCommandUtility.h>

#include <mpxplaybackutility.h>

#include <mpxplaybackmessage.h>

#include <EnvironmentalReverbUtility.h>

#include <EnvironmentalReverbUtilityData.h>

#include <StereoWideningBase.h>

#include <StereoWideningData.h>

#include <BassBoostBase.h>

#include <BassBoostData.h>

#include <LoudnessBase.h>

#include <LoudnessData.h>

#include <AudioEqualizerUtility.h>

#include <EqualizerConstants.h>

#include <mpxlog.h>

#include "mpxaudioeffectengine.h"

const TUid KMPCenRepSettingsFeature = {0x10207C92};

const TUint32 KMPCenRepSettingPresetIdKey = 0x00000004;

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

// -----------------------------------------------------------------------------

// CMPXAudioEffectEngine::NewL()

// Standard 2-Phased Constructor

// -----------------------------------------------------------------------------

// 

EXPORT_C CMPXAudioEffectEngine* CMPXAudioEffectEngine::NewL(

    CMdaAudioPlayerUtility* aPlayer )

    {

    CMPXAudioEffectEngine* self = new( ELeave ) CMPXAudioEffectEngine( aPlayer );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

// -----------------------------------------------------------------------------

// CMPXAudioEffectEngine::CMPXAudioEffectEngine()

// Constructor

// -----------------------------------------------------------------------------

// 

CMPXAudioEffectEngine::CMPXAudioEffectEngine(CMdaAudioPlayerUtility* aPlayer)

                                    :iMdaPlayer(aPlayer)   

    {

    }

// -----------------------------------------------------------------------------

// CMPXAudioEffectEngine::~CMPXAudioEffectEngine()

// Virtual destructor

// -----------------------------------------------------------------------------

// 

EXPORT_C CMPXAudioEffectEngine::~CMPXAudioEffectEngine()

    {    

    if (iProp)

        {

        delete iProp;

        }

    DestroyAudioEffect();

    }

// -----------------------------------------------------------------------------

// CMPXAudioEffectEngine::ConstructL()

// Standard Second Phased Constructor

// -----------------------------------------------------------------------------

// 

void CMPXAudioEffectEngine::ConstructL()

    {

    iProp = new(ELeave) CMPXAudioEffectProperties();   

    MPX_TRAPD( err, iProp->LoadFromFileL() ); //Loads saved settings if available

    if( err != KErrNone )

        {

        MPX_DEBUG1("CMPXAudioEffectEngine::ConstructL -- reset save to file");

        iProp->Reset();

        iProp->SaveToFileL();        

        }

    }

// -----------------------------------------------------------------------------

// CMPXAudioEffectEngine::SetBalanceL()

// (other items were commented in a header).

// -----------------------------------------------------------------------------

// 

EXPORT_C void CMPXAudioEffectEngine::SetBalanceL()

    {

    iProp->LoadFromFileL();

    if(iMdaPlayer)

        {

        if(iMdaPlayer->SetBalance(iProp->Balance())!=KErrNone)

            {

            User::Leave(KErrNotSupported);

            }

        } 

    }

// -----------------------------------------------------------------------------

// CMPXAudioEffectEngine::SetReverberationL()

// (other items were commented in a header).

// -----------------------------------------------------------------------------

// 

EXPORT_C void CMPXAudioEffectEngine::SetReverberationL()

    {

#ifdef _REVERB

    if(!iReverbEffect)

        {

         //Effect enabled immediately, cmdUtil ownership passed into new object

        MPX_TRAPD(error, iReverbEffect = 

                            CEnvironmentalReverbUtility::NewL(*iMdaPlayer));

        if(!error)

            {

            SetReverberationL();

            }

        }

    iProp->LoadFromFileL();

    TBuf16<32> reverbation;

    TBuf16<32> reverbation2;

    switch( iProp->Reverb() ) //aIndex ranges always from 0 to 7

        {

        case 1:   _LIT( KRevName, "Alley" );

              reverbation.Append( KRevName );

              break;

        case 2:   _LIT( KRevName2, "Bathroom" );

              reverbation.Append( KRevName2 );

              break;

        case 3:   _LIT( KRevName3, "Underwater" );

              reverbation.Append( KRevName3 );

              break;

        case 4:   _LIT( KRevName4, "Small room" );

              reverbation.Append( KRevName4 );

              break;

        case 5:   _LIT( KRevName5, "Medium room" );

              reverbation.Append( KRevName5 );

              break;

        case 6:   _LIT( KRevName6, "Large room" );

              reverbation.Append( KRevName6 );

              break;

        case 7:   _LIT( KRevName7, "Large hall" );

              reverbation.Append( KRevName7 );

              break;

        default:  break;

        }

    TUint32 count;

    count = iReverbEffect->NumberOfPreDefinedPresets();

    TArray<TEfEnvironmentalReverbUtilityPreset> array = iReverbEffect->Presets();

    if( 0 != iProp->Reverb() )

        {

        TInt i = 0;

        do    //compare descriptors and apply preset if descriptors match

          {

          reverbation2.Copy( array[i].iPresetName );

          if( reverbation2.Compare(reverbation) == 0 )

            {

            iReverbEffect->ApplyPresetL( i );

            i = count;

            }

          i++;

          }while( i < count );

        }

    else

        {

        iReverbEffect->DisableEnvironmentalReverbL();

        }

#endif

    }

// -----------------------------------------------------------------------------

// CMPXAudioEffectEngine::SetStereoWideningL()

// (other items were commented in a header).

// -----------------------------------------------------------------------------

// 

EXPORT_C void CMPXAudioEffectEngine::SetStereoWideningL()

    {

#ifdef _STEREO

    iProp->LoadFromFileL();

    if(iProp->Stereo())

        {

        if(!iStereoEffect)  // If stereo widening is ON and not constructed

            {

            // cmdUtil ownership passed into new object           

            MPX_TRAPD(error, 

                  iStereoEffect = CStereoWidening::NewL(*iMdaPlayer, 

                                                        EFalse, stereoLevel));

            if(error)

                {

                iStereoEffect = NULL;

                User::Leave(KErrNotSupported);

                }

            }

        iStereoEffect->EnableL();

        iStereoEffect->SetStereoWideningLevelL( level );

        iStereoEffect->ApplyL();

        }

    else

        {

        if (iStereoEffect)   // If audio effects was not on, then no need to disable

            { 

            iStereoEffect->DisableL();

            }

        }

#endif

    }

// -----------------------------------------------------------------------------

// CMPXAudioEffectEngine::SetBassBoostL()

// (other items were commented in a header).

// -----------------------------------------------------------------------------

// 

EXPORT_C void CMPXAudioEffectEngine::SetBassBoostL()

  {

#ifdef _BASSBOOST

    iProp->LoadFromFileL();

    if(iProp->BassBoost())

        {

        if (!iBassBoostEffect)

            {

            // cmdUtil ownership passed into new object           

            MPX_TRAPD(error, 

                  iBassBoostEffect = CBassBoost::NewL(*iMdaPlayer, 

                                                      iProp->BassBoost()));

            if (error)

                {

                User::Leave(KErrNotSupported);

                }

            }

        iBassBoostEffect->EnableL();

        }

    else

        {

        if (iBassBoostEffect)

            {

            iBassBoostEffect->DisableL();    

            }

        }

#endif

  }

// -----------------------------------------------------------------------------

// CMPXAudioEffectEngine::SetLoudnessL()

// (other items were commented in a header).

// -----------------------------------------------------------------------------

// 

EXPORT_C void CMPXAudioEffectEngine::SetLoudnessL()

    {

#ifdef _LOUDNESS

    iProp->LoadFromFileL();

    if(iProp->Loudness())

        {

        if(!iLoudnessEffect)

            {

            // cmdUtil ownership passed into new object           

            MPX_TRAPD(error, 

                  iLoudnessEffect = CLoudness::NewL(*iMdaPlayer, 

                                                    iProp->Loudness()));

            if(error)

                {

                iLoudnessEffect = NULL;

                User::Leave(KErrNotSupported);

                }

            else

                {

                }

            } 

        iLoudnessEffect->EnableL();

        }

    else

        {

        if( iLoudnessEffect )   // Only disable if it was constructed

            {

            iLoudnessEffect->DisableL();

            }

        }

#endif

    }

// -----------------------------------------------------------------------------

// Sets the equalizer

// (other items were commented in a header).

// -----------------------------------------------------------------------------

// 

EXPORT_C void CMPXAudioEffectEngine::SetEqualizerL()

    {

    MPX_DEBUG1("CMPXAudioEffectEngine::SetEqualizerL <--");

    // Create the effect

    //

    if( !iEqualizerEffect )

        {

        iEqualizerEffect = CAudioEqualizerUtility::NewL(*iMdaPlayer);

        }

    // Get equalizer preset id from cenrep

    //

    TInt presetId( KEqualizerPresetNone );

    TRAP_IGNORE(

        {

        repository->Get( KMPCenRepSettingPresetIdKey, presetId );

        delete repository;

        repository = NULL;

        } );

    // Translate preset ID to index

    //

    MPX_DEBUG1("CMPXAudioEffectEngine::SetEqualizerL = finding preset index");

    TInt index( KErrNotFound );

    if ( iEqualizerEffect && presetId != KEqualizerPresetNone )

        {

        TArray<TEfAudioEqualizerUtilityPreset> presetArray = 

            iEqualizerEffect->Presets();

        TBool found( EFalse );

        for ( TInt i = 0; i < presetArray.Count() && found == EFalse; i++ )

            {

            if ( presetArray[i].iPresetNameKey == 

                static_cast<TUint32>( presetId ) )

                {

                found = ETrue;

                index = i;

                }

            }

        }

    MPX_DEBUG2("CMPXAudioEffectEngine::SetEqualizerL effect index: %i", index);

    // Apply preset index index or disable if not found

    //

    if ( KErrNotFound != index )

        {

        iEqualizerEffect->ApplyPresetL( index );

        }

    else

        {

        iEqualizerEffect->DisableEqualizerL();    

        }

    MPX_DEBUG1("CMPXAudioEffectEngine::SetEqualizerL -->");

    }

// ---------------------------------------------------------------------------

// CreateAudioEffectsL

// ---------------------------------------------------------------------------

//

EXPORT_C void CMPXAudioEffectEngine::CreateAudioEffectsL()

    {

    SetEqualizerL();

    SetStereoWideningL();

    SetBalanceL();

    SetLoudnessL();

    }

// -----------------------------------------------------------------------------

// Destroy audio effect

// -----------------------------------------------------------------------------

// 

EXPORT_C void CMPXAudioEffectEngine::DestroyAudioEffect()

    {

    if (iReverbEffect)

        {

        delete iReverbEffect;     //effect automatically disabled

        iReverbEffect = NULL;

        }

    if (iStereoEffect)

        {

        delete iStereoEffect;     //effect automatically disabled

        iStereoEffect = NULL;

        }

    if (iBassBoostEffect)

        {

        delete iBassBoostEffect;  //effect automatically disabled

        iBassBoostEffect = NULL;

        }

    if (iLoudnessEffect)

        {

        delete iLoudnessEffect;   //effect automatically disabled

        iLoudnessEffect = NULL;

        }

    if (iEqualizerEffect)

        {

        delete iEqualizerEffect;  //effect automatically disabled

        iEqualizerEffect = NULL;

        }

    }

//End of File