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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 EnvironmentalReverb effect message handler class.
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*
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*/
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// INCLUDE FILES
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#include "EnvironmentalReverbMessageHandler.h"
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#include "EnvironmentalReverbMessageTypes.h"
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#include <EnvironmentalReverbBase.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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CEnvironmentalReverbMessageHandler::CEnvironmentalReverbMessageHandler(
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CEnvironmentalReverb* aEnvironmentalReverb )
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: CMMFObject(KUidEnvironmentalReverbEffect),
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iEnvironmentalReverb(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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iEnvironmentalReverb = aEnvironmentalReverb;
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}
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EXPORT_C CEnvironmentalReverbMessageHandler* CEnvironmentalReverbMessageHandler::NewL(
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TAny* aCustomInterface )
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{
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CEnvironmentalReverb* environmentalReverb = (CEnvironmentalReverb*)aCustomInterface;
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CEnvironmentalReverbMessageHandler* self = new (ELeave) CEnvironmentalReverbMessageHandler(environmentalReverb);
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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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// CEnvironmentalReverbMessageHandler::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 CEnvironmentalReverbMessageHandler::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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// CEnvironmentalReverbMessageHandler::~CEnvironmentalReverbMessageHandler
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// Before going away, unregister with the CI EnvironmentalReverb 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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CEnvironmentalReverbMessageHandler::~CEnvironmentalReverbMessageHandler()
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{
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#ifdef _DEBUG
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RDebug::Print(_L("CEnvironmentalReverbMessageHandler::~CEnvironmentalReverbMessageHandler"));
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#endif
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if(iEnvironmentalReverb)
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iEnvironmentalReverb->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 iEnvironmentalReverb;
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}
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// ---------------------------------------------------------
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// CEnvironmentalReverbMessageHandler::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 CEnvironmentalReverbMessageHandler::HandleRequest(
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TMMFMessage& aMessage )
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{
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ASSERT(aMessage.Destination().InterfaceId() == KUidEnvironmentalReverbEffect);
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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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// CEnvironmentalReverbMessageHandler::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 CEnvironmentalReverbMessageHandler::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 EErfInitialize:
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{
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DoInitializeL(aMessage);
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break;
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}
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case EErfApply:
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{
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DoApplyL(aMessage);
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break;
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}
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case EErfObserve:
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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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// CEnvironmentalReverbMessageHandler::DoInitializeL
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// ---------------------------------------------------------
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//
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void CEnvironmentalReverbMessageHandler::DoInitializeL(TMMFMessage& aMessage)
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{
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#ifdef _DEBUG
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RDebug::Print(_L("CEnvironmentalReverbMessageHandler::DoInitializeL"));
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#endif
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aMessage.WriteDataToClient(iEnvironmentalReverb->DoEffectData());
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aMessage.Complete(KErrNone);
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}
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// ---------------------------------------------------------
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// CEnvironmentalReverbMessageHandler::DoApplyL
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// Extracts the data from the message. The client EnvironmentalReverb
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// data is applied to the CI EnvironmentalReverb object.
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// ---------------------------------------------------------
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//
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void CEnvironmentalReverbMessageHandler::DoApplyL(
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TMMFMessage& aMessage )
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{
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#ifdef _DEBUG
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RDebug::Print(_L("CEnvironmentalReverbMessageHandler::DoApplyL"));
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#endif
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TEfEnvReverbDataPckg environmentalReverbPckgFromClient;
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aMessage.ReadData1FromClient(environmentalReverbPckgFromClient);
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iEnvironmentalReverb->SetEffectData(environmentalReverbPckgFromClient);
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iEnvironmentalReverb->ApplyL();
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aMessage.Complete(KErrNone);
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}
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// ---------------------------------------------------------
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// CEnvironmentalReverbMessageHandler::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 CEnvironmentalReverbMessageHandler::DoObserveL(
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TMMFMessage& aMessage )
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{
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#ifdef _DEBUG
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RDebug::Print(_L("CEnvironmentalReverbMessageHandler::DoObserveL"));
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#endif
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if ( !iRegistered )
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{
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iEnvironmentalReverb->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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TEfEnvReverbDataPckg 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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// CEnvironmentalReverbMessageHandler::EffectChanged
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// The CI EnvironmentalReverb 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 EnvironmentalReverb object's data is
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// packaged and queued.
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// ---------------------------------------------------------
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//
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void CEnvironmentalReverbMessageHandler::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("CEnvironmentalReverbMessageHandler::EffectChanged"));
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#endif
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if ( iMessage && !iMessage->IsCompleted() && iEffectDataQue->IsEmpty() )
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{
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iMessage->WriteDataToClient(((CEnvironmentalReverb*)aAudioEffect)->DoEffectData());
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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 = ((CEnvironmentalReverb*)aAudioEffect)->DoEffectData().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("CEnvironmentalReverbMessageHandler::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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