// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

#include "cdevtonecontrol.h"

#include <a3f/maudiocontext.h>

#include <a3f/mbuffersource.h>

#include <a3f/maudiocodec.h>

#include <a3f/maudiogaincontrol.h>

#include <a3f/audioprocessingunittypeuids.h>

// ---------------------------------------------------------------------------

// Default constructor

// ---------------------------------------------------------------------------

//

CDevToneControl::CDevToneControl()

	{

	TRACE_CREATE();

	DP_CONTEXT(CDevToneControl::CDevToneControl *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	DP_OUT();

	}

// -----------------------------------------------------------------------------

// Symbian 2nd phase constructor

// -----------------------------------------------------------------------------

//

void CDevToneControl::ConstructL(CDevAudio* aDevAudio, MDevSoundAdaptationObserver& aDevSoundObserver)

	{

	DP_CONTEXT(CDevToneControl::ConstructL *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	CDevAudioControl::ConstructL(aDevAudio, aDevSoundObserver);

	DP_OUT();

	}

// -----------------------------------------------------------------------------

// Symbian constructor

// -----------------------------------------------------------------------------

//

CDevToneControl* CDevToneControl::NewL(CDevAudio* aDevAudio, MDevSoundAdaptationObserver& aDevSoundObserver)

	{

	DP_STATIC_CONTEXT(CDevToneControl::NewL *CD0*, CtxDevSound, DPLOCAL);

	DP_IN();

	CDevToneControl* self = new (ELeave) CDevToneControl();

	CleanupStack::PushL(self);

	self->ConstructL(aDevAudio, aDevSoundObserver);

	CleanupStack::Pop(self);

	DP0_RET(self, "0x%x");

	}

// ---------------------------------------------------------------------------

// Destructor

// ---------------------------------------------------------------------------

//

CDevToneControl::~CDevToneControl()

	{

	DP_CONTEXT(CDevToneControl::~CDevToneControl *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	DP_OUT();

	}

// -----------------------------------------------------------------------------

// CDevToneControl::Initialize

// -----------------------------------------------------------------------------

//

TInt CDevToneControl::Initialize(TUid aFormat)

	{

	DP_CONTEXT(CDevToneControl::Initialize *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	ASSERT(iDevAudio->iAudioSource && iDevAudio->iAudioCodec && iGainControl);

	TInt err(KErrNone);

	// Adding pUnits

	err = iDevAudio->iAudioStream->AddSource(iDevAudio->iAudioSource);

	if (err == KErrNone)

		{

		err = iDevAudio->iAudioStream->AddSink(iDevAudio->iAudioSink);

		if (err == KErrNone)

			{

			err = iDevAudio->iAudioStream->AddAudioCodec(iDevAudio->iAudioCodec);

			}

		}

	// KErrAlreadyExist shouldn't occurr 

	// It's mandatory unregister any observer when no more events are required

	// Otherwise the notifications will be sent to all previously registered observer

	// when reinitialising for different mode

	err = iDevAudio->iAudioStream->RegisterAudioStreamObserver(*this);

	if (err != KErrNone)

		{

		DP0_RET(err, "Stream observer registeration failed, err = %d");

		}

	iGainControl->RegisterAudioGainControlObserver(*this);

	if (err != KErrNone)

		{

		DP0_RET(err, "Gaincontrol observer registeration failed, err = %d");

		}

	err = CacheAudioCodecIf();

	if (err != KErrNone)

		{

		DP0_RET(err, "CacheAudioCodecIf() failed, err = %d");

		}

	err = iAudioCodecIf->RegisterAudioCodecObserver(*this);

	if(err != KErrNone)

		{

		DP0_RET(err, "Registration failed, err = %d");

		}

	__ASSERT_ALWAYS (iAudioCodecIf, CDevAudioControl::Panic(EAudioCodecIsNull));

	err = iAudioCodecIf->SetFormat(aFormat);

	if (err!=KErrNone)

		{

		DP0_RET(err, "SetFormat() failed, err = %d");

		}

	// Needed to get ProcessingUnitError notification 

	err = iDevAudio->iAudioCodec->RegisterProcessingUnitObserver(*this);

	if ((err != KErrAlreadyExists) && (err != KErrNone))

		{

		DP0_RET(err, "Audiocodec observer registeration failed, err = %d");

		}

	// get correct BufferSource interface of DevAudio::iAudioSource

	TAny* interface = iDevAudio->iAudioSource->Interface(KUidMmfBufferSource);

	if (interface == NULL)

		{

		DP0_RET(KErrNotSupported, "Incorrect source type! %d");

		}

	else

		{

		iBufferSource = static_cast<MMMFBufferSource*>(interface);

		err = iBufferSource->SetDataSupplier(*this);

		if (err != KErrNone )

			{

			DP0_RET(err, "Data suplier setting failed, err = %d");

			}

		}

	err = iDevAudio->iAudioStream->Initialize();

	if (err == KErrNone)

		{

		err = iDevAudio->CommitAudioContext();

		}

	if (err == KErrNone)

		{

		iDevAudio->iActiveState = EDevSoundAdaptorInitialising;

		}

	DP0_RET(err,"%d");

	}

// -----------------------------------------------------------------------------

// CDevToneControl::ProcessInit

// -----------------------------------------------------------------------------

//

TInt CDevToneControl::ProcessInit()

	{

	DP_CONTEXT(CDevToneControl::ProcessInit *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	PRF(PRF_ID, PRF_START, PRF_TIME, AA_DS_PlayTone, "");

	TInt err(KErrNone);

	DP1(DLINFO,"iActiveState = %d", iDevAudio->iActiveState);

	switch (iDevAudio->iActiveState)

		{

		case EDevSoundAdaptorInitialised_Initialised:

			{

			if (iDevAudio->IsPrioritySet())

				{

				TAudioTypeSettings priority;

				iDevAudio->GetPrioritySettings(priority);

				err = iDevAudio->iAudioStream->SetAudioType(priority);

				}

			if ( err == KErrNone)

				{

				err = iDevAudio->iAudioStream->Load();

				}

			if ( err == KErrNone)

				{

				err = iDevAudio->CommitAudioContext();

				}

			if(err == KErrNone)

				{

				iDevAudio->iActiveState = EDevSoundAdaptorLoading;

				}

			}

			break;

		case EDevSoundAdaptorGoingActive:

			{

			//If following condition is false, then we are here because of a

			//pre-emption clash in last Commit cycle started from

			//CDevCommonControl::ContextEventUpdateWithStateEventNoError.

			if(iDevAudio->iPreviousState != EDevSoundAdaptorActivating)

				{

				break;

				}

			//Fall through as required

			}

		case EDevSoundAdaptorPaused_Primed:

		case EDevSoundAdaptorInitialised_Idle:

			{

			//If following condition is true, then we are here because of a

			//pre-emption clash in last Commit cycle started from

			//CDevCommonControl::ContextEventUpdateWithStateEventAndError.

			if(iDevAudio->iPreviousState == EDevSoundAdaptorUnloading)

				{

				err = Unload();

				break;

				}

			DP0(DLINFO, "Already in loaded state");

			err = iDevAudio->RequestGainAndBalance(this);

			if (err==KErrNone)

				{

				err = iDevAudio->iAudioStream->Activate();

				}

			if (err == KErrNone)

				{

				err = iDevAudio->CommitAudioContext();

				}

			if (err == KErrNone)

				{

				iDevAudio->iActiveState = EDevSoundAdaptorActivating;

				}

			break;

			}

		case EDevSoundAdaptorActive_Active:

		default:

			err = KErrNotReady;

			break;

		}

	DP0_RET(err,"%d");

	}

// -----------------------------------------------------------------------------

// CDevToneControl::ProcessData

// -----------------------------------------------------------------------------

//

void CDevToneControl::ProcessData()

	{

	DP_CONTEXT(CDevToneControl::ProcessData *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	DP_OUT();

	}

// -----------------------------------------------------------------------------

// From class MAudioDataSupplier

// CDevToneControl::BufferToBeFilled

// -----------------------------------------------------------------------------

//

void CDevToneControl::BufferToBeFilled(MMMFBufferSource* aSource, CMMFBuffer* aBuffer)

	{

	DP_CONTEXT(CDevToneControl::BufferToBeFilled *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	__ASSERT_ALWAYS(iBufferSource==aSource, CDevAudioControl::Panic(EBufferMismatch));

	TInt err = KErrNone;

	CMMFDataBuffer* myBuffer = static_cast<CMMFDataBuffer*> (aBuffer);

	Mem::Copy((TAny*)(myBuffer->Data().Ptr()), (TAny*)(&iToneData), sizeof(TToneData) );

	myBuffer->SetLastBuffer(ETrue);

	err = iBufferSource->BufferFilled(myBuffer); 

	if ( err != KErrNone)

		{

		iErrorCondition = err;

		Stop();

		}

	DP_OUT();

	}

// -----------------------------------------------------------------------------

// From class MAudioDataSupplier

// CDevToneControl::DiscardBuffers

// -----------------------------------------------------------------------------

//

void CDevToneControl::DiscardBuffers(MMMFBufferSource* /*aSource*/)

	{

	DP_CONTEXT(CDevToneControl::DiscardBuffers *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	DP_OUT();

	}

// -----------------------------------------------------------------------------

// CDevToneControl::ProcessingFinished

// -----------------------------------------------------------------------------

//

void CDevToneControl::ProcessingFinished(MAudioStream& /*aStream*/)

	{

	DP_CONTEXT(CDevToneControl::ProcessingFinished *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	PRF(PRF_ID, PRF_STOP, PRF_TIME, AA_DS_PlayTone, "");

	if(iCallbackFromAdaptor == KCallbackNone)

		{

		iCallbackFromAdaptor = KCallbackProcessingFinished;

		iAdaptationObserver->CallbackFromAdaptorReceived(KCallbackProcessingFinished, KErrNone);

		}

	else

		{

		// Multiple callbacks from adaptor

		DP0(DLERR, "Multiple callbacks from adaptor");

		}

	DP_OUT();

	}

// -----------------------------------------------------------------------------

// CDevToneControl::SetToneData

// -----------------------------------------------------------------------------

//

TInt CDevToneControl::SetToneData(TToneData& aToneData)

	{

	DP_CONTEXT(CDevToneControl::SetToneData *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	iToneData = aToneData;

	DP0_RET(KErrNone, "%d");

	}

// -----------------------------------------------------------------------------

// CDevToneControl::FinishWithError

// -----------------------------------------------------------------------------

//

void CDevToneControl::FinishWithError(TInt aError) // from CDevCommonControl

    {

    iAdaptationObserver->ToneFinished(aError);

    }

// -----------------------------------------------------------------------------

// CDevPlayControl::ProcessingFinishedReceived

// -----------------------------------------------------------------------------

//

TInt CDevToneControl::ProcessingFinishedReceived(TBool& asyncOperation)

	{

	DP_CONTEXT(CDevToneControl::ProcessingFinishedReceived *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	asyncOperation = EFalse;

	TInt err = iDevAudio->iAudioStream->Stop();

	if ( err == KErrNone)

		{

		err = iDevAudio->CommitAudioContext();

		if(err == KErrNone)

			{

			iDevAudio->iActiveState = EDevSoundAdaptorStopping;

			asyncOperation = ETrue;

			}

		}

	// Something was wrong, clear the flag.

	if (err != KErrNone)

		{

		iCallbackFromAdaptor = KCallbackNone;

		}

	DP0_RET(err,"%d");

	}

// ---------------------------------------------------------------------------

// CDevToneControl::ProcessingError

// ---------------------------------------------------------------------------

TInt CDevToneControl::ProcessingError(TBool& aAyncOperation)

    {

    TInt err = ProcessingFinishedReceived(aAyncOperation);

    return err;

    }

// End of file