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// Copyright (c) 2006-2009 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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//
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#include "audiogaincontrol.h"
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#include <a3f/audioprocessingunittypeuids.h>
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// ======== LOCAL FUNCTIONS ========
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void Panic(TInt aPanicCode)
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{
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_LIT(KAudioGainControlPanicCategory, "audiogaincontrol");
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User::Panic(KAudioGainControlPanicCategory, aPanicCode);
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}
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// ======== MEMBER FUNCTIONS ========
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// ---------------------------------------------------------------------------
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// Constructor
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// ---------------------------------------------------------------------------
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CAudioGainControl::CAudioGainControl()
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{
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TRACE_CREATE();
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DP_CONTEXT(CAudioGainControl::CAudioGainControl *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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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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EXPORT_C CAudioGainControl* CAudioGainControl::NewL()
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{
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DP_STATIC_CONTEXT(CAudioGainControl::NewL *CD0*, CtxDevSound, DPLOCAL);
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DP_IN();
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CAudioGainControl* self = new(ELeave)CAudioGainControl();
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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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void CAudioGainControl::ConstructL()
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{
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DP_CONTEXT(CAudioGainControl::ConstructL *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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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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CAudioGainControl::~CAudioGainControl()
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{
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DP_CONTEXT(CAudioGainControl::~CAudioGainControl *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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iGainObservers.Close();
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DP_OUT();
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}
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EXPORT_C void CAudioGainControl::SetHelper(MGainHelper &aHelper)
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{
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iHelper = &aHelper;
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}
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// ---------------------------------------------------------------------------
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// CAudioGainControl::IssueGainChangedCallBack
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// ---------------------------------------------------------------------------
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EXPORT_C void CAudioGainControl::IssueGainChangedCallBack(TInt aError)
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{
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DP_CONTEXT(CAudioGainControl::IssueGainChangedCallBack *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TUint count = iGainObservers.Count();
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for(TUint i(0); i<count; i++)
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{
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iGainObservers[i]->GainChanged(*this, aError);
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}
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DP_OUT();
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}
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// ---------------------------------------------------------------------------
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// CAudioGainControl::IssueMaxGainChangedCallBack
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// ---------------------------------------------------------------------------
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void CAudioGainControl::IssueMaxGainChangedCallBack()
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{
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DP_CONTEXT(CAudioGainControl::IssueMaxGainChangedCallBack *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TUint count = iGainObservers.Count();
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for(TUint i(0); i<count; i++)
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{
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iGainObservers[i]->MaxGainChanged(*this);
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}
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DP_OUT();
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}
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// ---------------------------------------------------------------------------
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// CAudioGainControl::IssueMaxRampTimeGainChangedCallBack
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// ---------------------------------------------------------------------------
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void CAudioGainControl::IssueMaxRampTimeChangedCallBack()
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{
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DP_CONTEXT(CAudioGainControl::IssueMaxRampTimeChangedCallBack *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TUint count = iGainObservers.Count();
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for(TUint i(0); i<count; i++)
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{
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iGainObservers[i]->MaxRampTimeChanged(*this);
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}
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DP_OUT();
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}
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// ---------------------------------------------------------------------------
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// CAudioGainControl::ConfigureRamp
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// ---------------------------------------------------------------------------
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EXPORT_C TInt CAudioGainControl::ConfigureRamp(TUid aRampOperation, const TTimeIntervalMicroSeconds& aRampDuration)
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{
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DP_CONTEXT(CAudioGainControl::ConfigureRamp *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TInt err = KErrNone;
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// Apply ramp
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if(iHelper)
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{
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err = iHelper->ConfigureRamp(aRampOperation, aRampDuration);
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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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// CAudioGainControl::GetMaxGain
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// ---------------------------------------------------------------------------
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TInt CAudioGainControl::GetMaxGain(TInt& aMaxGain) const
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{
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DP_CONTEXT(CAudioGainControl::GetMaxGain *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TInt err = KErrNone;
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aMaxGain = KDefaultMaxGain;
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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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// CAudioGainControl::GetMaxRampTime
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// ---------------------------------------------------------------------------
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TInt CAudioGainControl::GetMaxRampTime(TTimeIntervalMicroSeconds& aMaxRampTime) const
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{
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DP_CONTEXT(CAudioGainControl::GetMaxRampTime *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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aMaxRampTime = KDefaultMaxRampTime;
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DP0_RET(KErrNone, "%d");
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}
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// ---------------------------------------------------------------------------
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// from class MAudioGainControl
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// CAudioGainControl::GetGain
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// ---------------------------------------------------------------------------
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TInt CAudioGainControl::GetGain(RArray<TAudioChannelGain>& aChannels) const
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{
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DP_CONTEXT(CAudioGainControl::GetGain *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TInt err = KErrNone;
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aChannels.Reset();
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TInt count = iGains.Count();
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for (TUint i(0); i < count; i++)
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{
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err = aChannels.Append(iGains[i]);
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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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DP0_RET(err, "%d");
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}
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// ---------------------------------------------------------------------------
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// from class MAudioGainControl
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// CAudioGainControl::SetGain
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// ---------------------------------------------------------------------------
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TInt CAudioGainControl::SetGain( RArray<TAudioChannelGain>& /*aChannels*/, TUid /*aRampOperation*/,
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const TTimeIntervalMicroSeconds& /*aRampDuration*/)
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{
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DP_CONTEXT(CAudioGainControl::SetGain *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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__ASSERT_DEBUG(EFalse, Panic(EAdaptationOldSetGainCalledPanic));
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DP0_RET(KErrNone, "%d");
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}
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// ---------------------------------------------------------------------------
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// from class MAudioGainControl
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// CAudioGainControl::SetGain
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// ---------------------------------------------------------------------------
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TInt CAudioGainControl::SetGain(RArray<TAudioChannelGain>& aChannels)
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{
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DP_CONTEXT(CAudioGainControl::SetGain *CD1*, CtxDevSound, DPLOCAL);
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DP_IN();
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TInt err = KErrNone;
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// Keep array cache
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iGains.Reset();
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TUint count = aChannels.Count();
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for (TUint i(0); i < count; i++)
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{
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err = iGains.Append(aChannels[i]);
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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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// Apply gain
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if(iHelper && err == KErrNone)
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{
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err = iHelper->SetGain(aChannels);
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}
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DP0_RET(KErrNone, "%d");
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}
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// ---------------------------------------------------------------------------
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// from class MAudioGainControl
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// CAudioGainControl::RegisterAudioGainControlObserver
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// ---------------------------------------------------------------------------
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TInt CAudioGainControl::RegisterAudioGainControlObserver(MAudioGainControlObserver& aObserver)
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{
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DP_CONTEXT(CAudioGainControl::RegisterAudioStreamObserver *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 = iGainObservers.Append(&aObserver);
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}
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else
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{
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err = KErrAlreadyExists;
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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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// CAudioGainControl::UnregisterAudioGainControlObserver
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// ---------------------------------------------------------------------------
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void CAudioGainControl::UnregisterAudioGainControlObserver(MAudioGainControlObserver& aObserver)
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{
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DP_CONTEXT(CAudioGainControl::UnregisterAudioStreamObserver *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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// end of file
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