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/*
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* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Implementation of the AudioEqualizer effect message handler class.
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*
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*/
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// INCLUDE FILES
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#include "AudioEqualizerMessageHandler.h"
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#include "AudioEqualizerMessageTypes.h"
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#include <AudioEqualizerBase.h>
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#include "EffectDataQueItem.h"
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#ifdef _DEBUG
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#include <e32svr.h>
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#endif
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// ================= MEMBER FUNCTIONS =======================
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// C++ default constructor can NOT contain any code, that
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// might leave.
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//
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CAudioEqualizerMessageHandler::CAudioEqualizerMessageHandler(
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CAudioEqualizer* aAudioEqualizer )
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: CMMFObject(KUidAudioEqualizerEffect),
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iAudioEqualizer(NULL),
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iMessage(NULL),
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iRegistered(EFalse),
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iEffectDataQue(NULL)
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{
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iAudioEqualizer = aAudioEqualizer;
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}
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EXPORT_C CAudioEqualizerMessageHandler* CAudioEqualizerMessageHandler::NewL(
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TAny* aCustomInterface )
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{
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CAudioEqualizer* audioEqualizer = (CAudioEqualizer*)aCustomInterface;
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CAudioEqualizerMessageHandler* self = new (ELeave) CAudioEqualizerMessageHandler(audioEqualizer);
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CleanupStack::PushL(self);
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self->ConstructL();
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CleanupStack::Pop(self);
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return self;
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}
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// -----------------------------------------------------------------------------
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// CAudioEqualizerMessageHandler::ConstructL
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// Symbian 2nd phase constructor can leave.
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// Create and initializes the effect data queue.
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// -----------------------------------------------------------------------------
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//
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void CAudioEqualizerMessageHandler::ConstructL()
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{
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iEffectDataQue = new(ELeave) TSglQue<CEffectDataQueItem>(_FOFF(CEffectDataQueItem, iLink));
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}
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// -----------------------------------------------------------------------------
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// CAudioEqualizerMessageHandler::~CAudioEqualizerMessageHandler
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// Before going away, unregister with the CI AudioEqualizer object.
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// The observation message must be completed if outstanding.
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// The effect data queue must be emptied and destroyed.
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// -----------------------------------------------------------------------------
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//
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CAudioEqualizerMessageHandler::~CAudioEqualizerMessageHandler()
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{
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#ifdef _DEBUG
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RDebug::Print(_L("CAudioEqualizerMessageHandler::~CAudioEqualizerMessageHandler"));
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#endif
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if(iAudioEqualizer)
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iAudioEqualizer->UnRegisterObserver(*this);
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iRegistered = EFalse;
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if(iMessage)
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{
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if ( !iMessage->IsCompleted() )
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{
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iMessage->Complete(KErrCancel);
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delete iMessage;
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}
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}
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if ( iEffectDataQue )
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{
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CEffectDataQueItem* queItem;
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while ( !iEffectDataQue->IsEmpty() )
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{
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queItem = iEffectDataQue->First();
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iEffectDataQue->Remove(*queItem);
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delete queItem;
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}
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delete iEffectDataQue;
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}
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delete iAudioEqualizer;
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}
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// ---------------------------------------------------------
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// CAudioEqualizerMessageHandler::HandleRequest
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// (other items were commented in a header).
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// ---------------------------------------------------------
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//
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void CAudioEqualizerMessageHandler::HandleRequest(
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TMMFMessage& aMessage )
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{
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ASSERT(aMessage.Destination().InterfaceId() == KUidAudioEqualizerEffect);
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TRAPD(error,DoHandleRequestL(aMessage));
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if ( error )
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{
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aMessage.Complete(error);
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}
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}
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// ---------------------------------------------------------
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// CAudioEqualizerMessageHandler::DoHandleRequestL
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// Dispatches the message to the appropriate handler.
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// ---------------------------------------------------------
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//
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void CAudioEqualizerMessageHandler::DoHandleRequestL(
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TMMFMessage& aMessage )
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{
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switch( aMessage.Function() )
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{
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case EAefInitialize:
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{
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DoInitializeL(aMessage);
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break;
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}
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case EAefInitializeBand:
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{
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DoInitializeBandL(aMessage);
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break;
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}
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case EAefGetNumberOfBands:
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{
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DoGetNumberOfBandsL(aMessage);
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break;
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}
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case EAefApply:
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{
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DoApplyL(aMessage);
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break;
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}
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case EAefApplyBand:
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{
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DoApplyBandL(aMessage);
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break;
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}
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case EAefObserve:
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{
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DoObserveL(aMessage);
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break;
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}
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default:
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{
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aMessage.Complete(KErrNotSupported);
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}
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}
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}
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// ---------------------------------------------------------
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// CAudioEqualizerMessageHandler::DoInitializeL
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// ---------------------------------------------------------
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//
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void CAudioEqualizerMessageHandler::DoInitializeL(TMMFMessage& aMessage)
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{
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#ifdef _DEBUG
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RDebug::Print(_L("CAudioEqualizerMessageHandler::DoInitializeL"));
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#endif
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aMessage.WriteDataToClient(iAudioEqualizer->DoEffectData());
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aMessage.Complete(KErrNone);
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}
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// ---------------------------------------------------------
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// CAudioEqualizerMessageHandler::DoInitializeBandL
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// ---------------------------------------------------------
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//
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void CAudioEqualizerMessageHandler::DoInitializeBandL(TMMFMessage& aMessage)
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{
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#ifdef _DEBUG
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RDebug::Print(_L("CAudioEqualizerMessageHandler::DoInitializeBandL"));
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#endif
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TUint8 band = 0;
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TPckgBuf<TUint8> bandPckg;
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aMessage.ReadData1FromClient(bandPckg);
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band = bandPckg();
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aMessage.WriteDataToClient(iAudioEqualizer->DoBandDataL(band, EFalse));
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aMessage.Complete(KErrNone);
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}
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// ---------------------------------------------------------
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// CAudioEqualizerMessageHandler::DoGetNumberOfBandsL
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// ---------------------------------------------------------
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//
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void CAudioEqualizerMessageHandler::DoGetNumberOfBandsL(TMMFMessage& aMessage)
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{
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#ifdef _DEBUG
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RDebug::Print(_L("CAudioEqualizerMessageHandler::DoGetNumberOfBandsL"));
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#endif
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TUint8 band = iAudioEqualizer->NumberOfBands();
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TPckgBuf<TUint8> bandPckg(band);
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aMessage.WriteDataToClient(bandPckg);
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aMessage.Complete(KErrNone);
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}
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// ---------------------------------------------------------
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// CAudioEqualizerMessageHandler::DoApplyL
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// Extracts the data from the message. The client AudioEqualizer
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// data is applied to the CI AudioEqualizer object.
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// ---------------------------------------------------------
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//
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void CAudioEqualizerMessageHandler::DoApplyL(
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TMMFMessage& aMessage )
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{
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#ifdef _DEBUG
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RDebug::Print(_L("CAudioEqualizerMessageHandler::DoApplyL"));
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#endif
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TEfAudioEqualizerDataPckg audioEqualizerPckgFromClient;
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aMessage.ReadData1FromClient(audioEqualizerPckgFromClient);
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iAudioEqualizer->SetEffectData(audioEqualizerPckgFromClient);
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// iAudioEqualizer->ApplyL();
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aMessage.Complete(KErrNone);
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}
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// ---------------------------------------------------------
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// CAudioEqualizerMessageHandler::DoApplyBandL
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// Extracts the data from the message. The client Audio Equalizer
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// band data is applied to the CI AudioEqualizer object.
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// ---------------------------------------------------------
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//
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void CAudioEqualizerMessageHandler::DoApplyBandL(
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TMMFMessage& aMessage )
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{
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#ifdef _DEBUG
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RDebug::Print(_L("CAudioEqualizerMessageHandler::DoApplyBandL"));
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#endif
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TEfAudioEqualizerBandDataPckg audioEqualizerBandDataPckgFromClient;
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HBufC8* bandDataBuf = HBufC8::NewL(iAudioEqualizer->NumberOfBands() * sizeof(TEfAudioEqualizerBand));
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TPtr8 des = bandDataBuf->Des();
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des.SetLength(bandDataBuf->Size());
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aMessage.ReadData1FromClient(des);
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//aMessage.ReadData1FromClient(audioEqualizerBandDataPckgFromClient);
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//iAudioEqualizer->SetBandDataL(1,audioEqualizerBandDataPckgFromClient);
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iAudioEqualizer->SetBandDataL(2,des);
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delete bandDataBuf;
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iAudioEqualizer->ApplyL();
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aMessage.Complete(KErrNone);
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}
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// ---------------------------------------------------------
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// CAudioEqualizerMessageHandler::DoObserveL
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// Receives the observation request message and depending
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// on the status of the effect data queue, the message is
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// completed immediately or saved for later completion.
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// ---------------------------------------------------------
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//
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void CAudioEqualizerMessageHandler::DoObserveL(
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TMMFMessage& aMessage )
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{
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#ifdef _DEBUG
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RDebug::Print(_L("CAudioEqualizerMessageHandler::DoObserveL"));
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#endif
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if ( !iRegistered )
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{
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iAudioEqualizer->RegisterObserverL(*this);
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iRegistered = ETrue;
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}
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if ( iEffectDataQue->IsEmpty() )
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{
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//iMessage = &aMessage;
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iMessage = new(ELeave) TMMFMessage(aMessage);
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}
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else
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{
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TEfAudioEqualizerCombinedDataPckg dataPckg;
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CEffectDataQueItem* item = iEffectDataQue->First();
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dataPckg.Copy(item->EffectData());
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aMessage.WriteDataToClient(dataPckg);
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aMessage.Complete(KErrNone);
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iEffectDataQue->Remove(*item);
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delete item;
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}
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}
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// ---------------------------------------------------------
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// CAudioEqualizerMessageHandler::EffectChanged
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// The CI AudioEqualizer object has changed state.
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// The observation message is completed if no data has been
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// queued up. Otherwise, the CI AudioEqualizer object's data is
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// packaged and queued.
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// ---------------------------------------------------------
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//
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void CAudioEqualizerMessageHandler::EffectChanged(
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const CAudioEffect* aAudioEffect,
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TUint8 aEvent )
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{
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#ifdef _DEBUG
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RDebug::Print(_L("CAudioEqualizerMessageHandler::EffectChanged"));
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#endif
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TEfAudioEqualizerCombined data;
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data.iAudioEqualizerDataValid = EFalse;
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data.iAudioEqualizerBandDataValid = EFalse;
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if ( aEvent < MAudioEffectObserver::KSpecificEffectBase )
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{
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data.iEnabled = ((CAudioEqualizer*)aAudioEffect)->IsEnabled();
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data.iHaveUpdateRights = ((CAudioEqualizer*)aAudioEffect)->HaveUpdateRights();
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data.iEnforced = ((CAudioEqualizer*)aAudioEffect)->IsEnforced();
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data.iAudioEqualizerDataValid = ETrue;
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}
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else
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{
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TUint8 band = aEvent - MAudioEffectObserver::KSpecificEffectBase;
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data.iBandId = band;
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data.iBandLevel = ((CAudioEqualizer*)aAudioEffect)->BandLevel(band);
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data.iBandWidth = ((CAudioEqualizer*)aAudioEffect)->BandWidth(band);
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data.iCenterFrequency = ((CAudioEqualizer*)aAudioEffect)->CenterFrequency(band);
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data.iCrossoverFrequency = ((CAudioEqualizer*)aAudioEffect)->CrossoverFrequency(band);
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data.iAudioEqualizerBandDataValid = ETrue;
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}
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TEfAudioEqualizerCombinedDataPckg dataPckg(data);
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if ( iMessage && !iMessage->IsCompleted() && iEffectDataQue->IsEmpty() )
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{
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iMessage->WriteDataToClient(dataPckg);
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iMessage->Complete(KErrNone);
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delete iMessage;
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iMessage = NULL;
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}
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else
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{
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// Saves the data and complete an observation message next time around.
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HBufC8* data = NULL;
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TRAPD(err1,data = dataPckg.AllocL());
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if(!err1)
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{
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//CleanupStack::PushL(data);
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CEffectDataQueItem* item = NULL;
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TRAPD(err2,item = CEffectDataQueItem::NewL(data));
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if(!err2)
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{
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iEffectDataQue->AddLast(*item);
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}
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else
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{
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delete data;
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}
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}
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else
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{
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#ifdef _DEBUG
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RDebug::Print(_L("CAudioEqualizerMessageHandler::EffectChanged Error Allocating Memory %d"),err1);
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#endif
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}
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}
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}
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// ========================== OTHER EXPORTED FUNCTIONS =========================
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// End of File
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