// 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;

	}