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// Copyright (c) 2004-2009 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:
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// Name : audiogaincontrol.cpp
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// Part of : ACL Logical layer
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//
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#include "logicalaudiogaincontrol.h"
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#include <a3f/audioprocessingunittypeuids.h>
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#include <ecom/implementationproxy.h> // For making it ECom plugin
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// ======== LOCAL FUNCTIONS ========
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// __________________________________________________________________________
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// Exported proxy for instantiation method resolution
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// Define the interface UIDs
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// Moved from header
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const TInt KDefaultMaxRampTime = 10;
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const TImplementationProxy ImplementationTable[] =
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{
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IMPLEMENTATION_PROXY_ENTRY(KAudioGainControlUid, CLogicalAudioGainControl::NewL)
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};
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EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
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{
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aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);
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return ImplementationTable;
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}
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// ---------------------------------------------------------------------------
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// Constructor
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// ---------------------------------------------------------------------------
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//
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CLogicalAudioGainControl::CLogicalAudioGainControl(TAny* aParam) : CAudioProcessingUnit(aParam)
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{
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TRACE_CREATE();
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DP_CONTEXT(CLogicalAudioGainControl::CLogicalAudioGainControl *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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iMaxRampTime = KDefaultMaxRampTime;
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DP_OUT();
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}
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// ---------------------------------------------------------------------------
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// Factory method
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// ---------------------------------------------------------------------------
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//
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CLogicalAudioGainControl* CLogicalAudioGainControl::NewL(TAny* aParam)
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{
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DP_STATIC_CONTEXT(CLogicalAudioGainControl::NewL *CD0*, CtxDevSound, DPLOCAL);
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DP_IN();
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CLogicalAudioGainControl* self = new(ELeave)CLogicalAudioGainControl(aParam);
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CleanupStack::PushL(self);
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self->ConstructL();
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CleanupStack::Pop(self);
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DP0_RET(self, "0x%x");
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}
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// ---------------------------------------------------------------------------
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// Second phase constructor
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// ---------------------------------------------------------------------------
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//
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void CLogicalAudioGainControl::ConstructL()
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{
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DP_CONTEXT(CLogicalAudioGainControl::ConstructL *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TAudioChannelGain left;
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TAudioChannelGain right;
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left.iLocation = TAudioChannelGain::ELeft;
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right.iLocation = TAudioChannelGain::ERight;
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iDesiredChannels.AppendL(left);
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iDesiredChannels.AppendL(right);
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DP_OUT();
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}
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// ---------------------------------------------------------------------------
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// Destructor
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// ---------------------------------------------------------------------------
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//
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CLogicalAudioGainControl::~CLogicalAudioGainControl()
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{
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DP_CONTEXT(CLogicalAudioGainControl::~CLogicalAudioGainControl *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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iActiveChannels.Close();
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iDesiredChannels.Close();
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iGainObservers.Close();
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DP_OUT();
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}
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// ---------------------------------------------------------------------------
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// from class MAudioGainControl
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// CLogicalAudioGainControl::GetMaxGain
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// ---------------------------------------------------------------------------
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//
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TInt CLogicalAudioGainControl::GetMaxGain(TInt& aMaxGain) const
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{
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DP_CONTEXT(CLogicalAudioGainControl::GetMaxGain *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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// TODO: Fix this when the MMRC server is available
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// This adaptationGain pointer will be replaced by the a pointer gotten from
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// the "control mechanism" provided by the real MMRC server
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TInt err = KErrNotReady;
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if(iAdaptationGain)
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{
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err = iAdaptationGain->GetMaxGain(aMaxGain);
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}
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DP0_RET(err, "%d");
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}
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// ---------------------------------------------------------------------------
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// from class MAudioGainControl
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// CLogicalAudioGainControl::GetMaxRampTime
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// ---------------------------------------------------------------------------
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//
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TInt CLogicalAudioGainControl::GetMaxRampTime(TTimeIntervalMicroSeconds& aMaxRampTime) const
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{
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DP_CONTEXT(CLogicalAudioGainControl::GetMaxRampTime *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TInt err = KErrNone;
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aMaxRampTime = KDefaultMaxRampTime;
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if(iAdaptationGain)
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{
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err = iAdaptationGain->GetMaxRampTime(aMaxRampTime);
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}
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DP0_RET(err, "%d");
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}
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// ---------------------------------------------------------------------------
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// from class MAudioGainControl
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// CLogicalAudioGainControl::GetGain
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// ---------------------------------------------------------------------------
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//
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TInt CLogicalAudioGainControl::GetGain(RArray<TAudioChannelGain>& aChannels) const
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{
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DP_CONTEXT(CLogicalAudioGainControl::GetGain *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TInt err = KErrNone;
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TInt count = iDesiredChannels.Count();
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aChannels.Reset();
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for (TUint i(0); i < count; i++)
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{
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TInt err = aChannels.Append(iDesiredChannels[i]);
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}
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DP0_RET(err, "%d");
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}
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// ---------------------------------------------------------------------------
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// from class MAudioGainControl
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// CLogicalAudioGainControl::SetGain
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// ---------------------------------------------------------------------------
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//
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TInt CLogicalAudioGainControl::SetGain(RArray<TAudioChannelGain>& aChannels, TUid aRampOperation, const TTimeIntervalMicroSeconds& aRampDuration)
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{
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DP_CONTEXT(CLogicalAudioGainControl::SetGain *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TInt err = KErrNone;
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iDesiredRampTime = static_cast<TInt>(aRampDuration.Int64());
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iDesiredRampOperation = aRampOperation;
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// The gain values are clippped to MaxGain.
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TInt a3fMaxGain = 0;
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if(iAdaptationGain)
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{
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err = iAdaptationGain->GetMaxGain(a3fMaxGain);
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}
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if(err == KErrNone)
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{
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iDesiredChannels.Reset();
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TUint count = aChannels.Count();
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TAudioChannelGain gainChannel;
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for (TUint i(0); i < count; i++)
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{
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gainChannel = aChannels[i];
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//
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if(gainChannel.iGain > a3fMaxGain)
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{
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gainChannel.iGain = a3fMaxGain;
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}
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else if(gainChannel.iGain < 0)
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{
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err = KErrArgument;
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break;
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}
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err = iDesiredChannels.Append( gainChannel );
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if(err != KErrNone)
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{
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break;
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}
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}
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}
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if(err == KErrNone)
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{
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if(iSettingsObserver)
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{
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iSettingsObserver->ReceiveComponentSettingsChange(iType, EComponentAlterationGain);
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}
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}
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DP0_RET(err, "%d");
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}
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// ---------------------------------------------------------------------------
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// from class MAudioGainControl
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// CLogicalAudioGainControl::SetGain
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// ---------------------------------------------------------------------------
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//
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TInt CLogicalAudioGainControl::SetGain(RArray<TAudioChannelGain>& aChannels)
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{
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DP_CONTEXT(CLogicalAudioGainControl::SetGain *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TInt err = KErrNone;
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err = SetGain(aChannels, KNullUid, 0);
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DP0_RET(err, "%d");
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}
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// ---------------------------------------------------------------------------
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// from class MAudioGainControl
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// CLogicalAudioGainControl::RegisterAudioGainControlObserver
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// ---------------------------------------------------------------------------
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//
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TInt CLogicalAudioGainControl::RegisterAudioGainControlObserver(MAudioGainControlObserver& aObserver)
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{
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DP_CONTEXT(CLogicalAudioGainControl::RegisterAudioGainControlObserver *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TInt err = iGainObservers.Find(&aObserver);
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if( err != KErrNotFound )
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{
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err = KErrAlreadyExists;
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}
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else
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{
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err = iGainObservers.Append(&aObserver);
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}
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DP0_RET(err, "%d");
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}
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// ---------------------------------------------------------------------------
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// from class MAudioGainControl
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// CLogicalAudioGainControl::UnregisterAudioGainControlObserver
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// ---------------------------------------------------------------------------
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//
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void CLogicalAudioGainControl::UnregisterAudioGainControlObserver(MAudioGainControlObserver& aObserver)
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{
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DP_CONTEXT(CLogicalAudioGainControl::UnregisterAudioGainControlObserver *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TInt idxOrErr = iGainObservers.Find(&aObserver);
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if( idxOrErr != KErrNotFound )
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{
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iGainObservers.Remove(idxOrErr);
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}
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DP_OUT();
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}
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// ---------------------------------------------------------------------------
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// from class MAudioProcessingUnit
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// CLogicalAudioGainControl::IsTypeOf
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// ---------------------------------------------------------------------------
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TBool CLogicalAudioGainControl::IsTypeOf(TUid aTypeId) const
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{
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DP_CONTEXT(CLogicalAudioGainControl::IsTypeOf *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TBool result = EFalse;
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if (iType == aTypeId)
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{
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result = ETrue;
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}
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DP0_RET(result, "%d");
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}
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// ---------------------------------------------------------------------------
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// from class MAudioProcessingUnit
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// CLogicalAudioGainControl::Interface
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// ---------------------------------------------------------------------------
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TAny* CLogicalAudioGainControl::Interface(TUid aType)
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{
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DP_CONTEXT(CLogicalAudioGainControl::GetInterface *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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MAudioGainControl* ptr = NULL;
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if(aType==KUidAudioGainControl)
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{
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ptr = this;
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}
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DP_OUT();
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return ptr;
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}
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// ---------------------------------------------------------------------------
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// from class MAudioGainControlObserver
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// CLogicalAudioGainControl::MaxRampTimeChanged
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// ---------------------------------------------------------------------------
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void CLogicalAudioGainControl::MaxRampTimeChanged(MAudioGainControl& /*aGain*/)
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{
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DP_CONTEXT(CLogicalAudioGainControl::MaxRampTimeChanged *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TUint count = iGainObservers.Count();
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for ( TUint idx(0); idx < count; idx++ )
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{
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iGainObservers[idx]->MaxRampTimeChanged(*this);
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}
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DP_OUT();
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}
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// ---------------------------------------------------------------------------
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// from class MAudioGainControlObserver
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// CLogicalAudioGainControl::MaxGainChanged
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// ---------------------------------------------------------------------------
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void CLogicalAudioGainControl::MaxGainChanged(MAudioGainControl& /*aGain*/)
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{
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DP_CONTEXT(CLogicalAudioGainControl::MaxGainChanged *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TUint count = iGainObservers.Count();
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for ( TUint idx(0); idx < count; idx++ )
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{
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iGainObservers[idx]->MaxGainChanged(*this);
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}
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sl@0
|
334 |
DP_OUT();
|
sl@0
|
335 |
}
|
sl@0
|
336 |
|
sl@0
|
337 |
// ---------------------------------------------------------------------------
|
sl@0
|
338 |
// from class MAudioGainControlObserver
|
sl@0
|
339 |
// CLogicalAudioGainControl::GainChanged
|
sl@0
|
340 |
// ---------------------------------------------------------------------------
|
sl@0
|
341 |
void CLogicalAudioGainControl::GainChanged(MAudioGainControl& /*aGain*/, TInt aError)
|
sl@0
|
342 |
{
|
sl@0
|
343 |
DP_CONTEXT(CLogicalAudioGainControl::GainChanged *CD1*, CtxDevSound, DPLOCAL);
|
sl@0
|
344 |
DP_IN();
|
sl@0
|
345 |
TUint count = iDesiredChannels.Count();
|
sl@0
|
346 |
iActiveChannels.Reset();
|
sl@0
|
347 |
for(TUint i=0; i<count; i++)
|
sl@0
|
348 |
{
|
sl@0
|
349 |
iActiveChannels.Append(iDesiredChannels[i]);
|
sl@0
|
350 |
}
|
sl@0
|
351 |
count = iGainObservers.Count();
|
sl@0
|
352 |
for ( TUint idx(0); idx < count; idx++ )
|
sl@0
|
353 |
{
|
sl@0
|
354 |
iGainObservers[idx]->GainChanged(*this, aError);
|
sl@0
|
355 |
}
|
sl@0
|
356 |
DP_OUT();
|
sl@0
|
357 |
}
|