// Copyright (c) 2007-2009 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 <ecom/implementationproxy.h>

 #include <ecom/implementationproxy.h>

 #include <ecom/ecom.h>

 #include <s32mem.h>

 #include "aacdecoderconfigci.h"

 // MUX //

 TInt CMMFAacDecoderConfigMux::OpenInterface(TUid /*aInterfaceId*/)

 	{

 	// attempt to open the interface link with the

 	// remote slave device

 	iRemoteHandle = -1;

 	TUid slaveId = {KMmfUidCustomInterfaceAacDecoderConfigDeMux};

 	TInt handle = iUtility->OpenSlave(slaveId, KNullDesC8);

 	if (handle >= 0)

 		{

 		iRemoteHandle = handle;

 		}

 	return iRemoteHandle;

 	}

 void CMMFAacDecoderConfigMux::Release()

 	{

 	// close the slave device if it exists

 	if (iRemoteHandle > 0)

 		{

 		// we assume the slave is closed correctly

 		iUtility->CloseSlave(iRemoteHandle);

 		}

 	TUid key = iKey;

 	delete this;

 	// tell ECom to destroy us

 	REComSession::DestroyedImplementation(key);

 	}

 void CMMFAacDecoderConfigMux::PassDestructorKey(TUid aDestructorKey)

 	{

 	// store the destructor key

 	iKey = aDestructorKey;

 	}

 void CMMFAacDecoderConfigMux::CompleteConstructL(MMMFDevSoundCustomInterfaceMuxUtility* aCustomUtility)

 	{

 	// store a pointer to the utility

 	iUtility = aCustomUtility;

 	}

 MMMFDevSoundCustomInterfaceMuxPlugin* CMMFAacDecoderConfigMux::NewL()

 	{

 	CMMFAacDecoderConfigMux* self = new (ELeave) CMMFAacDecoderConfigMux;

 	return self;

 	}

 TAny* CMMFAacDecoderConfigMux::CustomInterface(TUid /*aInterfaceId*/)

 	{

 	MAacDecoderConfig* interface = this;

 	return interface;

 	}

 CMMFAacDecoderConfigMux::CMMFAacDecoderConfigMux() :

 iRemoteHandle(-1)

 	{

 	}

 CMMFAacDecoderConfigMux::~CMMFAacDecoderConfigMux()

 	{

 	}

 // from MAacDecoderConfig

 TInt CMMFAacDecoderConfigMux::SetAudioConfig(TAudioConfig& aAudioConfig)

 	{

 	TInt result = -1;

 	if (iRemoteHandle > 0)

 		{

 		// send the status in the sync command

 		TPckgBuf<TAudioConfig> audioConfig(aAudioConfig);

 		// any return code other than zero is an error

 		result = iUtility->SendSlaveSyncCommand(iRemoteHandle,

 												EMMFDevSoundCIAacDecoderConfigSetAudioConfig,

 												audioConfig);

 		}

 	return result;

 	}

 // from MAacDecoderConfig

 TInt CMMFAacDecoderConfigMux::GetSupportedAudioConfigs(RArray<TAudioConfig>& aSupportedAudioConfigs)

 	{

 	TInt result = KErrNone;

 	if (iRemoteHandle == -1)

 		{

 		return KErrBadHandle;

 		}

 	// first clear out the array

 	aSupportedAudioConfigs.Reset();

 	// now fetch the count from the server

 	TInt count = -1;

 	count = iUtility->SendSlaveSyncCommand(iRemoteHandle,

 										   EMMFDevSoundCIAacDecoderConfigGetSupportedAudioConfig,

 										   KNullDesC8);

 	// if count is negative then the server side left with an error

 	if (count < 0)

 		{

 		result = KErrNotReady;

 		}

 	// no point getting the data if the count is zero

 	if ( (count != 0) && (result == KErrNone) )

 		{

 		// allocate a temporary buffer to hold the audio configuration

 		HBufC8* buf = NULL;

 		TRAP(result, buf = HBufC8::NewL(count * sizeof(TAudioConfig)));

 		if (result != KErrNone)

 			{

 			return result;

 			}

 		TPtr8 ptr = buf->Des();

 		// fetch the audio configurations - but send over the received count to be sure

 		TPckgBuf<TInt> countBuf(count);

 		iUtility->SendSlaveSyncCommandResult(iRemoteHandle,

 											 EMMFDevSoundCIAacDecoderConfigGetSupportedAudioConfigArray,

 											 countBuf,

 											 ptr);

 		if (result != KErrNone)

 			{

 			return result;

 			}

 		// stream data into the pointer

 		RDesReadStream stream(ptr);

 		TInt err = KErrNone;

 		for (TInt i = 0; i < count; i++)

 			{

 			TAudioConfig audioConfig;

 			TRAP(result, audioConfig.iAudioObjectType = static_cast<TAudioConfig::TAudioObjectType>(stream.ReadInt32L());

 			err = aSupportedAudioConfigs.Append(audioConfig));

 			if ( (err != KErrNone) || (result != KErrNone) )

 				{

 				// note we don't destroy array because we don't own it

 				// but we do reset it if it is incomplete

 				aSupportedAudioConfigs.Reset();

 				result = KErrCorrupt;

 				}

 			}

 		stream.Close();

 		stream.Release();

 		delete buf;

 		}

 	return result;

 	}

 // DEMUX //

 TInt CMMFAacDecoderConfigDeMux::OpenInterface(TUid /*aInterfaceId*/)

 	{

 	return KErrNone;

 	}

 void CMMFAacDecoderConfigDeMux::Release()

 	{

 	TUid key = iKey;

 	delete this;

 	// tell ECom to destroy us

 	REComSession::DestroyedImplementation(key);

 	}

 void CMMFAacDecoderConfigDeMux::PassDestructorKey(TUid aDestructorKey)

 	{

 	// store the destructor key

 	iKey = aDestructorKey;

 	}

 void CMMFAacDecoderConfigDeMux::SetInterfaceTarget(MMMFDevSoundCustomInterfaceTarget* aTarget)

 	{

 	iTarget = aTarget;

 	}

 void CMMFAacDecoderConfigDeMux::CompleteConstructL(MMMFDevSoundCustomInterfaceDeMuxUtility* aCustomUtility)

 	{

 	// store a pointer to the utility

 	iUtility = aCustomUtility;

 	}

 void CMMFAacDecoderConfigDeMux::RefreshL()

 	{

 	// refetch the aac decoder config custom interface if we already have a target

 	if (iTarget)

 		{

 		iInterfaceAacDecoderConfig = static_cast <MAacDecoderConfig*> (iTarget->CustomInterface(KUidAacDecoderConfig));

 		if (!iInterfaceAacDecoderConfig)

 			{

 			iInterfaceAacDecoderConfig = NULL;

 			User::Leave(KErrNotSupported);

 			}

 		}

 	}

 MMMFDevSoundCustomInterfaceDeMuxPlugin* CMMFAacDecoderConfigDeMux::NewL()

 	{

 	CMMFAacDecoderConfigDeMux* self = new (ELeave) CMMFAacDecoderConfigDeMux;

 	return self;

 	}

 CMMFAacDecoderConfigDeMux::CMMFAacDecoderConfigDeMux()

 	{

 	}

 CMMFAacDecoderConfigDeMux::~CMMFAacDecoderConfigDeMux()

 	{

 	iSupportedAudioConfigs.Reset();

 	iSupportedAudioConfigs.Close();

 	}

 TInt CMMFAacDecoderConfigDeMux::DoOpenSlaveL(TUid /*aInterface*/, const TDesC8& /*aPackageBuf*/)

 	{

 	// fetch the Aac Decoder Config Hw Device custom interface

 	iInterfaceAacDecoderConfig = static_cast<MAacDecoderConfig*> (iTarget->CustomInterface(KUidAacDecoderConfig)); 

 	if (!iInterfaceAacDecoderConfig)

 		{

 		iInterfaceAacDecoderConfig = NULL;

 		User::Leave(KErrNotSupported);

 		}

 	return KErrNone;

 	}

 void CMMFAacDecoderConfigDeMux::DoCloseSlaveL(TInt /*aHandle*/)

 	{

 	// nothing to do

 	}

 // original RMessage is supplied so that remote demux plugin can extract necessary details

 // using DeMux utility

 TInt CMMFAacDecoderConfigDeMux::DoSendSlaveSyncCommandL(const RMmfIpcMessage& aMessage)

 	{

 	TMMFDevSoundCIMessageData data;

 	TInt result = KErrNotSupported;

 	// decode message

 	iUtility->GetSyncMessageDataL(aMessage, data);

 	switch (data.iCommand)

 		{

 		case EMMFDevSoundCIAacDecoderConfigSetAudioConfig:

 			{

 			TPckgBuf<MAacDecoderConfig::TAudioConfig> audioConfig; 

 			iUtility->ReadFromInputDesL(aMessage, &audioConfig);

 			result = DoSetAudioConfigL(audioConfig());

 			break;

 			}

 		case EMMFDevSoundCIAacDecoderConfigGetSupportedAudioConfig:

 			{

 			// reset the current AudioConfig array

 			iSupportedAudioConfigs.Reset();

 			result = DoGetSupportedAudioConfigsL(iSupportedAudioConfigs);

 			// send back the array count

 			TInt count = iSupportedAudioConfigs.Count();

 			result = count;

 			break;

 			}

 		default:

 			{

 			User::Leave(KErrNotSupported);

 			}

 		}

 	return result;

 	}

 TInt CMMFAacDecoderConfigDeMux::DoSendSlaveSyncCommandResultL(const RMmfIpcMessage& aMessage)

 	{

 	TMMFDevSoundCIMessageData data;

 	TInt result = KErrNotSupported;

 	// decode message

 	iUtility->GetSyncMessageDataL(aMessage, data);

 	switch (data.iCommand)

 		{

 		case EMMFDevSoundCIAacDecoderConfigGetSupportedAudioConfigArray:

 			{

 			DoCopyAudioConfigsBufferToClientL(aMessage);

 			break;

 			}

 		default:

 			{

 			User::Leave(KErrNotSupported);

 			}

 		}

 	return result;

 	}

 void CMMFAacDecoderConfigDeMux::DoSendSlaveAsyncCommandL(const RMmfIpcMessage& /*aMessage*/)

 	{

 	// not used in this interface

 	}

 void CMMFAacDecoderConfigDeMux::DoSendSlaveAsyncCommandResultL(const RMmfIpcMessage& /*aMessage*/)

 	{

 	// not used in this interface

 	}

 // Aac Decoder Config custom interface implementation

 TInt CMMFAacDecoderConfigDeMux::DoSetAudioConfigL(MAacDecoderConfig::TAudioConfig& aAudioConfig)

 	{

 	TInt result = KErrNotFound;

 	if (iInterfaceAacDecoderConfig)

 		{

 		result = iInterfaceAacDecoderConfig->SetAudioConfig(aAudioConfig);

 		}

 	return result;

 	}

 // Aac Decoder Config custom interface implementation

 TInt CMMFAacDecoderConfigDeMux::DoGetSupportedAudioConfigsL(RArray<MAacDecoderConfig::TAudioConfig>& aSupportedAudioConfigs)

 	{

 	TInt result = KErrNotFound;

 	if (iInterfaceAacDecoderConfig)

 		{

 		result = iInterfaceAacDecoderConfig->GetSupportedAudioConfigs(aSupportedAudioConfigs);

 		}

 	return result;

 	}

 // Aac Decoder Config custom interface implementation

 void CMMFAacDecoderConfigDeMux::DoCopyAudioConfigsBufferToClientL(const RMmfIpcMessage& aMessage)

 	{

 	if (!iInterfaceAacDecoderConfig)

 		{

 		User::Leave(KErrNotReady);

 		}

 	// check our count is the same as the client's

 	TPckgBuf<TInt> countBuffer;

 	iUtility->ReadFromInputDesL(aMessage, &countBuffer);

 	TInt count = countBuffer();

 	if (count != iSupportedAudioConfigs.Count())

 		{

 		User::Leave(KErrCorrupt);

 		}

 	// send back the array - the client has the count already

 	const TInt KBufExpandSize8 = 8; //two TInt's

 	CBufFlat* dataCopyBuffer = CBufFlat::NewL(KBufExpandSize8);

 	CleanupStack::PushL(dataCopyBuffer);

 	RBufWriteStream stream;

 	stream.Open(*dataCopyBuffer);

 	CleanupClosePushL(stream);

 	for (TInt i = 0; i < count; i++)

 		{

 		stream.WriteInt32L(iSupportedAudioConfigs[i].iAudioObjectType);

 		}

 	// write the data to the supplied descriptor buffer

 	TPtr8 ptrBuf = dataCopyBuffer->Ptr(0);

 	iUtility->WriteToOutputDesL(aMessage, ptrBuf);

 	stream.Close();

 	CleanupStack::PopAndDestroy(2, dataCopyBuffer); // dataCopyBuffer, stream

 	}

 //

 // ImplementationTable

 //

 const TImplementationProxy ImplementationTable[] = 

 	{

 	IMPLEMENTATION_PROXY_ENTRY(KMmfUidCustomInterfaceAacDecoderConfigMux,	CMMFAacDecoderConfigMux::NewL),

 	IMPLEMENTATION_PROXY_ENTRY(KMmfUidCustomInterfaceAacDecoderConfigDeMux,	CMMFAacDecoderConfigDeMux::NewL),

 	};

 //

 // ImplementationGroupProxy

 //

 EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)

 	{

 	aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);

 	return ImplementationTable;

 	}