/*

* Copyright (c) 2002-2004 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:   Interface proxy for speech encoder configuration.

*

*/

// INCLUDE FILES

#include "SpeechEncoderConfigProxy.h"

#include "SpeechEncoderConfigMsgs.h"

#include <CustomCommandUtility.h>

#include <CustomInterfaceUtility.h>

// EXTERNAL DATA STRUCTURES

// EXTERNAL FUNCTION PROTOTYPES  

// CONSTANTS

// MACROS

// LOCAL CONSTANTS AND MACROS

// MODULE DATA STRUCTURES

// LOCAL FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

// ============================= LOCAL FUNCTIONS ===============================

// ================= MEMBER FUNCTIONS =======================

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

// CSpeechEncoderConfigProxy::CSpeechEncoderConfigProxy

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

CSpeechEncoderConfigProxy::CSpeechEncoderConfigProxy(

                            TMMFMessageDestinationPckg aMessageHandler, 

                            MCustomCommand& aCustomCommand,

                            CCustomInterfaceUtility* aCustomInterfaceUtility) :

	iCustomCommand(aCustomCommand),

	iMessageHandler(aMessageHandler),

	iCustomInterfaceUtility(aCustomInterfaceUtility)

    {

    }

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

// CSpeechEncoderConfigProxy::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CSpeechEncoderConfigProxy::ConstructL()

    {

    }

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

// CSpeechEncoderConfigProxy::NewL

// Two-phased constructor.

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

//

EXPORT_C CSpeechEncoderConfigProxy* CSpeechEncoderConfigProxy::NewL(

                               TMMFMessageDestinationPckg aMessageHandler, 

                               MCustomCommand& aCustomCommand,

                               CCustomInterfaceUtility* aCustomInterfaceUtility)

    {

    CSpeechEncoderConfigProxy* self = new(ELeave) CSpeechEncoderConfigProxy(

                                                      aMessageHandler,

                                                      aCustomCommand,

                                                      aCustomInterfaceUtility);

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

// Destructor

EXPORT_C CSpeechEncoderConfigProxy::~CSpeechEncoderConfigProxy()

    {

    iCustomInterfaceUtility->RemoveCustomInterface(iMessageHandler);

    delete iCustomInterfaceUtility;

    }

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

// CSpeechEncoderConfigProxy::GetSupportedBitrates

// Calls a  subfunction which sends the appropriate custom command for this

// function to its message handler. A subfunction is used

// to contain multiple leaving functions for a single trap.

// (other items were commented in a header).

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

//

EXPORT_C TInt CSpeechEncoderConfigProxy::GetSupportedBitrates(

                                           RArray<TUint>& aSupportedBitrates)

    {

    TInt status;

    TRAP(status, GetSupportedBitratesL(aSupportedBitrates));

    return status;

    }

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

// CSpeechEncoderConfigProxy::GetSupportedBitratesL

// Sends the custom command for this function to its message handler.

// This requires two commands. The first is a request for the number of

// supported bitrates. A buffer is allocated locally to hold this number of

// bitrates that will be returned. A pointer to this buffer is sent with the

// next command which is a request for the bitrates. This buffer will be filled

// with the bitrate values. These bitrates are then copied into the array

// provided to this function and the local buffer is deleted.

// (other items were commented in a header).

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

//

void CSpeechEncoderConfigProxy::GetSupportedBitratesL(

                                            RArray<TUint>& aSupportedBitrates)

    {

	aSupportedBitrates.Reset();

	TPckgBuf<TUint> numberOfBitratesPckg;

	User::LeaveIfError(iCustomCommand.CustomCommandSync(

	                                           iMessageHandler, 

                                               ESecmGetNumOfSupportedBitrates, 

                                               KNullDesC8,

                                               KNullDesC8,

                                               numberOfBitratesPckg));

    HBufC8* buf = HBufC8::NewLC(numberOfBitratesPckg()*sizeof(TUint));

    // buf is left on cleanup 

    TPtr8 ptr = buf->Des();

    User::LeaveIfError(iCustomCommand.CustomCommandSync(

                                               iMessageHandler, 

                                               ESecmGetSupportedBitrates, 

                                               KNullDesC8,

                                               KNullDesC8,

                                               ptr));

   	RDesReadStream stream(ptr);

    CleanupClosePushL(stream); // stream on cleanup

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

      	{

   		aSupportedBitrates.AppendL(stream.ReadUint32L());

   		}

   	CleanupStack::PopAndDestroy(&stream);

   	CleanupStack::PopAndDestroy(buf);

    }

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

// CSpeechEncoderConfigProxy::SetBitrate

// Sends the custom command for this function to its message handler.

// (other items were commented in a header).

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

//

EXPORT_C TInt CSpeechEncoderConfigProxy::SetBitrate(TUint aBitrate)

	{

	TPckgBuf<TInt> bitratePckg(aBitrate);

	TInt status = iCustomCommand.CustomCommandSync(iMessageHandler,

	                                               ESecmSetBitrate,

	                                               bitratePckg,

	                                               KNullDesC8);

	return status;

	}

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

// CSpeechEncoderConfigProxy::GetBitrate

// Sends the custom command for this function to its message handler.

// (other items were commented in a header).

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

//

EXPORT_C TInt CSpeechEncoderConfigProxy::GetBitrate(TUint& aBitrate)

	{

	TInt bitrate = 0;

	TPckgBuf<TInt> bitratePckg(bitrate);

	TInt status = iCustomCommand.CustomCommandSync(iMessageHandler,

	                                               ESecmGetBitrate,

	                                               KNullDesC8,

	                                               KNullDesC8,

	                                               bitratePckg);

	if (status == KErrNone)

	    aBitrate = bitratePckg();

	return status;

	}

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

// CSpeechEncoderConfigProxy::SetVadMode

// Sends the custom command for this function to its message handler.

// (other items were commented in a header).

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

//

EXPORT_C TInt CSpeechEncoderConfigProxy::SetVadMode(TBool aVadMode)

	{

	TPckgBuf<TBool> pckgBuf(aVadMode);

	TInt status = iCustomCommand.CustomCommandSync(iMessageHandler,

	                                               ESecmSetVadMode,

	                                               pckgBuf,

	                                               KNullDesC8);

	return status;

	}

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

// CSpeechEncoderConfigProxy::GetVadMode

// Sends the custom command for this function to its message handler.

// (other items were commented in a header).

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

//

EXPORT_C TInt CSpeechEncoderConfigProxy::GetVadMode(TBool& aVadMode)

	{

	TInt vadMode = EFalse;

	TPckgBuf<TBool> pckgBuf(vadMode);

	TInt status = iCustomCommand.CustomCommandSync(iMessageHandler,

	                                               ESecmGetVadMode,

	                                               KNullDesC8,

	                                               KNullDesC8,

	                                               pckgBuf);

	if (status == KErrNone)

	    aVadMode = pckgBuf();

	return status;

	}

// End of File