sl@0: // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: 
sl@0: 
sl@0: #include "audiogaincontrol.h"
sl@0: #include <a3f/audioprocessingunittypeuids.h>
sl@0: 
sl@0: // ======== LOCAL FUNCTIONS ========
sl@0: void Panic(TInt aPanicCode)
sl@0: 	{
sl@0: 	_LIT(KAudioGainControlPanicCategory, "audiogaincontrol");
sl@0: 	User::Panic(KAudioGainControlPanicCategory, aPanicCode);
sl@0: 	}
sl@0: 
sl@0: // ======== MEMBER FUNCTIONS ========
sl@0: 
sl@0: // ---------------------------------------------------------------------------
sl@0: // Constructor
sl@0: // ---------------------------------------------------------------------------
sl@0: CAudioGainControl::CAudioGainControl()
sl@0: 	{
sl@0: 	TRACE_CREATE();
sl@0: 	DP_CONTEXT(CAudioGainControl::CAudioGainControl *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	DP_OUT();
sl@0: 	}
sl@0: 
sl@0: // ---------------------------------------------------------------------------
sl@0: // Factory method
sl@0: // ---------------------------------------------------------------------------
sl@0: EXPORT_C CAudioGainControl* CAudioGainControl::NewL()
sl@0: 	{
sl@0: 	DP_STATIC_CONTEXT(CAudioGainControl::NewL *CD0*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	CAudioGainControl* self = new(ELeave)CAudioGainControl();
sl@0: 	CleanupStack::PushL(self);
sl@0: 	self->ConstructL();
sl@0: 	CleanupStack::Pop(self);
sl@0: 	DP0_RET(self, "0x%x");
sl@0: 	}
sl@0: 
sl@0: // ---------------------------------------------------------------------------
sl@0: // Second phase constructor
sl@0: // ---------------------------------------------------------------------------
sl@0: void CAudioGainControl::ConstructL()
sl@0: 	{
sl@0: 	DP_CONTEXT(CAudioGainControl::ConstructL *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	DP_OUT();
sl@0: 	}
sl@0: 
sl@0: // ---------------------------------------------------------------------------
sl@0: // Destructor
sl@0: // ---------------------------------------------------------------------------
sl@0: CAudioGainControl::~CAudioGainControl()
sl@0: 	{
sl@0: 	DP_CONTEXT(CAudioGainControl::~CAudioGainControl *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	iGainObservers.Close();
sl@0: 	DP_OUT();
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void CAudioGainControl::SetHelper(MGainHelper &aHelper)
sl@0: 	{
sl@0: 	iHelper = &aHelper;
sl@0: 	}
sl@0: // ---------------------------------------------------------------------------
sl@0: // CAudioGainControl::IssueGainChangedCallBack
sl@0: // ---------------------------------------------------------------------------
sl@0: EXPORT_C void CAudioGainControl::IssueGainChangedCallBack(TInt aError)
sl@0: 	{
sl@0: 	DP_CONTEXT(CAudioGainControl::IssueGainChangedCallBack *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	TUint count = iGainObservers.Count();
sl@0: 	for(TUint i(0); i<count; i++)
sl@0: 		{
sl@0: 		iGainObservers[i]->GainChanged(*this, aError);
sl@0: 		}
sl@0: 	DP_OUT();
sl@0: 	}
sl@0: 
sl@0: // ---------------------------------------------------------------------------
sl@0: // CAudioGainControl::IssueMaxGainChangedCallBack
sl@0: // ---------------------------------------------------------------------------
sl@0: void CAudioGainControl::IssueMaxGainChangedCallBack()
sl@0: 	{
sl@0: 	DP_CONTEXT(CAudioGainControl::IssueMaxGainChangedCallBack *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	TUint count = iGainObservers.Count();
sl@0: 	for(TUint i(0); i<count; i++)
sl@0: 		{
sl@0: 		iGainObservers[i]->MaxGainChanged(*this);
sl@0: 		}
sl@0: 	DP_OUT();
sl@0: 	}
sl@0: 
sl@0: // ---------------------------------------------------------------------------
sl@0: // CAudioGainControl::IssueMaxRampTimeGainChangedCallBack
sl@0: // ---------------------------------------------------------------------------
sl@0: void CAudioGainControl::IssueMaxRampTimeChangedCallBack()
sl@0: 	{
sl@0: 	DP_CONTEXT(CAudioGainControl::IssueMaxRampTimeChangedCallBack *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	TUint count = iGainObservers.Count();
sl@0: 	for(TUint i(0); i<count; i++)
sl@0: 		{
sl@0: 		 iGainObservers[i]->MaxRampTimeChanged(*this);
sl@0: 		}
sl@0: 	DP_OUT();
sl@0: 	}
sl@0: 
sl@0: // ---------------------------------------------------------------------------
sl@0: // CAudioGainControl::ConfigureRamp
sl@0: // ---------------------------------------------------------------------------
sl@0: EXPORT_C TInt CAudioGainControl::ConfigureRamp(TUid aRampOperation, const TTimeIntervalMicroSeconds& aRampDuration)
sl@0: 	{
sl@0: 	DP_CONTEXT(CAudioGainControl::ConfigureRamp *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 
sl@0: 	TInt err = KErrNone;
sl@0: 	// Apply ramp
sl@0: 	if(iHelper)
sl@0: 		{
sl@0: 		err = iHelper->ConfigureRamp(aRampOperation, aRampDuration);
sl@0: 		}
sl@0: 		
sl@0: 	DP0_RET(err, "%d");
sl@0: 	}
sl@0: 
sl@0: // ---------------------------------------------------------------------------
sl@0: // from class MAudioGainControl
sl@0: // CAudioGainControl::GetMaxGain
sl@0: // ---------------------------------------------------------------------------
sl@0: TInt CAudioGainControl::GetMaxGain(TInt& aMaxGain) const
sl@0: 	{
sl@0: 	DP_CONTEXT(CAudioGainControl::GetMaxGain *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	TInt err = KErrNone;
sl@0: 	aMaxGain = KDefaultMaxGain;
sl@0: 	DP0_RET(err, "%d");
sl@0: 	}
sl@0: 
sl@0: // ---------------------------------------------------------------------------
sl@0: // from class MAudioGainControl
sl@0: // CAudioGainControl::GetMaxRampTime
sl@0: // ---------------------------------------------------------------------------
sl@0: TInt CAudioGainControl::GetMaxRampTime(TTimeIntervalMicroSeconds& aMaxRampTime) const
sl@0: 	{
sl@0: 	DP_CONTEXT(CAudioGainControl::GetMaxRampTime *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	aMaxRampTime = KDefaultMaxRampTime;
sl@0: 	DP0_RET(KErrNone, "%d");
sl@0: 	} 
sl@0: 
sl@0: // ---------------------------------------------------------------------------
sl@0: // from class MAudioGainControl
sl@0: // CAudioGainControl::GetGain
sl@0: // ---------------------------------------------------------------------------
sl@0: TInt CAudioGainControl::GetGain(RArray<TAudioChannelGain>& aChannels) const
sl@0: 	{
sl@0: 	DP_CONTEXT(CAudioGainControl::GetGain *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	TInt err = KErrNone;
sl@0: 
sl@0: 	aChannels.Reset();
sl@0: 	TInt count = iGains.Count();
sl@0: 
sl@0: 	for (TUint i(0); i < count; i++)
sl@0: 		{
sl@0: 		err = aChannels.Append(iGains[i]);
sl@0: 		if(err != KErrNone)
sl@0: 			{
sl@0: 			break;
sl@0: 			}
sl@0: 		}
sl@0: 	
sl@0: 	DP0_RET(err, "%d");
sl@0: 	}
sl@0: 
sl@0: // ---------------------------------------------------------------------------
sl@0: // from class MAudioGainControl
sl@0: // CAudioGainControl::SetGain
sl@0: // ---------------------------------------------------------------------------
sl@0: TInt CAudioGainControl::SetGain( RArray<TAudioChannelGain>& /*aChannels*/, TUid /*aRampOperation*/, 
sl@0: 	const TTimeIntervalMicroSeconds& /*aRampDuration*/)
sl@0: 	{
sl@0: 	DP_CONTEXT(CAudioGainControl::SetGain *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	__ASSERT_DEBUG(EFalse, Panic(EAdaptationOldSetGainCalledPanic));
sl@0: 	DP0_RET(KErrNone, "%d");
sl@0: 	}
sl@0: 
sl@0: // ---------------------------------------------------------------------------
sl@0: // from class MAudioGainControl
sl@0: // CAudioGainControl::SetGain
sl@0: // ---------------------------------------------------------------------------
sl@0: TInt CAudioGainControl::SetGain(RArray<TAudioChannelGain>& aChannels)
sl@0: 	{
sl@0: 	DP_CONTEXT(CAudioGainControl::SetGain *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	TInt err = KErrNone;
sl@0: 
sl@0: 	// Keep array cache
sl@0: 	iGains.Reset();
sl@0: 	TUint count = aChannels.Count();
sl@0: 	for (TUint i(0); i < count; i++)
sl@0: 		{
sl@0: 		err = iGains.Append(aChannels[i]);
sl@0: 		if(err != KErrNone)
sl@0: 			{
sl@0: 			break;
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	// Apply gain
sl@0: 	if(iHelper && err == KErrNone)
sl@0: 		{
sl@0: 		err = iHelper->SetGain(aChannels);
sl@0: 		}
sl@0: 	DP0_RET(KErrNone, "%d");
sl@0: 	}
sl@0: 
sl@0: // ---------------------------------------------------------------------------
sl@0: // from class MAudioGainControl
sl@0: // CAudioGainControl::RegisterAudioGainControlObserver
sl@0: // ---------------------------------------------------------------------------
sl@0: TInt CAudioGainControl::RegisterAudioGainControlObserver(MAudioGainControlObserver& aObserver)
sl@0: 	{
sl@0: 	DP_CONTEXT(CAudioGainControl::RegisterAudioStreamObserver *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	TInt err = iGainObservers.Find(&aObserver);
sl@0: 	if(err == KErrNotFound)
sl@0: 		{
sl@0: 		err = iGainObservers.Append(&aObserver);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		err = KErrAlreadyExists;
sl@0: 		}
sl@0: 	DP0_RET(err, "%d");
sl@0: 	}
sl@0: 
sl@0: // ---------------------------------------------------------------------------
sl@0: // from class MAudioGainControl
sl@0: // CAudioGainControl::UnregisterAudioGainControlObserver
sl@0: // ---------------------------------------------------------------------------
sl@0: void CAudioGainControl::UnregisterAudioGainControlObserver(MAudioGainControlObserver& aObserver)
sl@0: 	{
sl@0: 	DP_CONTEXT(CAudioGainControl::UnregisterAudioStreamObserver *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	TInt idxOrErr = iGainObservers.Find(&aObserver);
sl@0: 	if( idxOrErr != KErrNotFound )
sl@0: 		{
sl@0: 		iGainObservers.Remove(idxOrErr);
sl@0: 		}
sl@0: 	DP_OUT();
sl@0: 	}
sl@0: 
sl@0: // end of file