devsound/devsoundpluginsupport/src/CustomInterfaces/CMMFDevSoundCIBitRate.cpp
changeset 29 eb1e5d7cc688
parent 26 c36d67f77f75
child 30 9707f1c07383
--- a/devsound/devsoundpluginsupport/src/CustomInterfaces/CMMFDevSoundCIBitRate.cpp	Thu Jun 24 10:37:45 2010 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,459 +0,0 @@
-/*
-* Copyright (c) 2005 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 "cmmfdevsoundcibitrateimplementationuid.hrh"
-
-#include <ecom/implementationproxy.h>
-#include <ecom/ecom.h>
-#include <s32mem.h>
-
-#include "cmmfdevsoundcibitrate.h"
-
-// __________________________________________________________________________
-// Implementation
-
-////////////////////////////////////////// MUX /////////////////////
-
-TInt CMMFDevSoundCIBitRateMux::OpenInterface(TUid /*aInterfaceId*/)
-	{
-	// attempt to open the interface link with the
-	// remote slave device
-	iRemoteHandle = -1;
-	TUid slaveId = {KMmfUidCustomInterfaceBitRateDeMux};
-		
-	TInt handle = iUtility->OpenSlave(slaveId, KNullDesC8);
-	if (handle >= 0)
-		{
-		iRemoteHandle = handle;
-		}
-		
-	return iRemoteHandle;
-	}
-
-void CMMFDevSoundCIBitRateMux::Release()
-	{
-	// close the slave device if it exists
-	if (iRemoteHandle != -1)
-		{
-		// we assume the slave is closed correctly
-		iUtility->CloseSlave(iRemoteHandle);
-		}
-	
-	TUid key = iKey;
-	delete this;
-	
-	// tell ECom to destroy us
-	REComSession::DestroyedImplementation(key);
-	}
-	
-void CMMFDevSoundCIBitRateMux::PassDestructorKey(TUid aDestructorKey)
-	{
-	// store the destructor key
-	iKey = aDestructorKey;
-	}
-
-void CMMFDevSoundCIBitRateMux::CompleteConstructL(MMMFDevSoundCustomInterfaceMuxUtility* aCustomUtility)
-	{
-	// store a pointer to the utility
-	iUtility = aCustomUtility;
-	}
-	
-MMMFDevSoundCustomInterfaceMuxPlugin* CMMFDevSoundCIBitRateMux::NewL()
-	{
-	CMMFDevSoundCIBitRateMux* self = new (ELeave) CMMFDevSoundCIBitRateMux;
-	return self;
-	}
-	
-TAny* CMMFDevSoundCIBitRateMux::CustomInterface(TUid /*aInterfaceId*/)
-	{
-	MMMFDevSoundCustomInterfaceBitRate* interface = this;
-	return interface;
-	}
-	
-CMMFDevSoundCIBitRateMux::CMMFDevSoundCIBitRateMux() :
-	iRemoteHandle(-1)
-	{	
-	}
-
-CMMFDevSoundCIBitRateMux::~CMMFDevSoundCIBitRateMux()
-	{	
-	}
-
-// from MMMFDevSoundCustomInterfaceBitRate
-void CMMFDevSoundCIBitRateMux::GetSupportedBitRatesL(RArray<TInt>& aSupportedBitRates)
-	{
-	if (iRemoteHandle == -1)
-		{
-		User::Leave(KErrNotReady);
-		}
-	
-	// first clear out the array
-	aSupportedBitRates.Reset();
-	
-	// now fetch the count from the server
-	TInt count = -1;
-	count = iUtility->SendSlaveSyncCommand(iRemoteHandle, EMMFDevSoundCIBitRateGetSupportedBitRates, KNullDesC8);
-	
-	// if count is negative then the server side left with an error
-	if (count < 0)
-		{
-		User::Leave(count);
-		}
-	
-	// no point getting the data if the count is zero
-	if (count != 0)
-		{
-		// allocate a temporary buffer to hold the bitrates
-		HBufC8* buf = HBufC8::NewLC(count * sizeof(TInt32));
-		TPtr8 ptr = buf->Des();
-	
-		// fetch the bitrates - but send over the received count to be sure
-		TPckgBuf<TInt> countBuf(count);
-		User::LeaveIfError(iUtility->SendSlaveSyncCommandResult(
-											 iRemoteHandle, 
-											 EMMFDevSoundCIBitRateGetSupportedBitRatesArray,
-											 countBuf, ptr));
-	
-		// stream data into the pointer
-		RDesReadStream stream(ptr);
-		CleanupClosePushL(stream);
-				
-		TInt err = KErrNone;
-		for (TInt i = 0; i < count; i++)
-			{
-			// note we don't destroy array because we don't own it
-			// but we do reset it as it is incomplete
-			err = aSupportedBitRates.Append(stream.ReadInt32L());
-			if (err != KErrNone)
-				{
-				aSupportedBitRates.Reset();
-				User::Leave(KErrCorrupt);
-				}
-			}
-		
-		CleanupStack::PopAndDestroy(2, buf);// stream, buf
-		}
-	}
-	
-TInt CMMFDevSoundCIBitRateMux::BitRateL()
-	{
-	if (iRemoteHandle == -1)
-		{
-		User::Leave(KErrNotReady);
-		}
-	
-	// send EMMFDevSoundCIBitRateBitRate command to slave
-	TInt bitrate = 0;
-	bitrate = iUtility->SendSlaveSyncCommand(iRemoteHandle, EMMFDevSoundCIBitRateBitRate, KNullDesC8);
-	
-	// if bitrate is negative then remote side left with an error
-	if (bitrate < 0)
-		{
-		User::Leave(bitrate);
-		}
-	
-	return bitrate;
-	}
-	
-void CMMFDevSoundCIBitRateMux::SetBitRateL(TInt aBitRate)
-	{
-	if (iRemoteHandle == -1)
-		{
-		User::Leave(KErrNotReady);
-		}
-	
-	// send the bitrate in the sync command
-	TPckgBuf<TInt> bitBuffer(aBitRate);
-	
-	// any return code other than zero is an error
-	User::LeaveIfError(iUtility->SendSlaveSyncCommand(iRemoteHandle, EMMFDevSoundCIBitRateSetBitRate, bitBuffer));
-	}
-
-/////////////////////////////////////// DEMUX //////////////////////	
-	
-
-TInt CMMFDevSoundCIBitRateDeMux::OpenInterface(TUid /*aInterfaceId*/)
-	{
-	return KErrNone;
-	}
-	
-void CMMFDevSoundCIBitRateDeMux::Release()
-	{
-	TUid key = iKey;
-	
-	delete this;
-	
-	// tell ECom to destroy us
-	REComSession::DestroyedImplementation(key);
-	}
-	
-void CMMFDevSoundCIBitRateDeMux::PassDestructorKey(TUid aDestructorKey)
-	{
-	// store the destructor key
-	iKey = aDestructorKey;
-	}
-	
-void CMMFDevSoundCIBitRateDeMux::SetInterfaceTarget(MMMFDevSoundCustomInterfaceTarget* aTarget)
-	{
-	iTarget = aTarget;
-	}
-	
-void CMMFDevSoundCIBitRateDeMux::CompleteConstructL(MMMFDevSoundCustomInterfaceDeMuxUtility* aCustomUtility)
-	{
-	// store a pointer to the utility
-	iUtility = aCustomUtility;
-	}
-
-void CMMFDevSoundCIBitRateDeMux::RefreshL()
-	{
-	// refetch the bitrate custom interface if we already have a target
-	if (iTarget)
-		{
-		MMMFDevSoundCustomInterfaceBitRate* ptr = NULL;
-		ptr = static_cast <MMMFDevSoundCustomInterfaceBitRate*> (iTarget->CustomInterface(KUidCustomInterfaceDevSoundBitRate));
-	
-		if (!ptr)
-			{
-			iBitRateInterface = NULL;
-			User::Leave(KErrNotSupported);
-			}
-		else
-			{
-			iBitRateInterface = ptr;
-			}	
-		}
-	}
-
-
-MMMFDevSoundCustomInterfaceDeMuxPlugin* CMMFDevSoundCIBitRateDeMux::NewL()
-	{
-	CMMFDevSoundCIBitRateDeMux* self = new (ELeave) CMMFDevSoundCIBitRateDeMux;
-	return self;
-	}
-	
-CMMFDevSoundCIBitRateDeMux::CMMFDevSoundCIBitRateDeMux()
-	{
-	
-	}
-
-CMMFDevSoundCIBitRateDeMux::~CMMFDevSoundCIBitRateDeMux()
-	{
-	iBitRateArray.Reset();
-	iBitRateArray.Close();
-	}
-
-
-TInt CMMFDevSoundCIBitRateDeMux::DoOpenSlaveL(TUid /*aInterface*/, const TDesC8& /*aPackageBuf*/)
-	{
-	// fetch the bitrate custom interface
-	MMMFDevSoundCustomInterfaceBitRate* ptr = NULL;
-	ptr = static_cast <MMMFDevSoundCustomInterfaceBitRate*> (iTarget->CustomInterface(KUidCustomInterfaceDevSoundBitRate));
-	
-	if (!ptr)
-		{
-		iBitRateInterface = NULL;
-		User::Leave(KErrNotSupported);
-		}
-	else
-		{
-		iBitRateInterface = ptr;
-		}
-	return KErrNone;
-	}
-	
-void CMMFDevSoundCIBitRateDeMux::DoCloseSlaveL(TInt /*aHandle*/)
-	{
-	// nothing to do
-	}
-
-// original RMessage is supplied so that remote demux plugin can extract necessary details
-// using DeMux utility
-TInt CMMFDevSoundCIBitRateDeMux::DoSendSlaveSyncCommandL(const RMmfIpcMessage& aMessage)
-	{
-	TMMFDevSoundCIMessageData data;
-	
-	// decode message
-	iUtility->GetSyncMessageDataL(aMessage, data);
-	TInt retVal = -1;
-	
-	switch (data.iCommand)
-		{
-		case EMMFDevSoundCIBitRateBitRate:
-			{
-			retVal = DoBitRateL();
-			break;
-			}
-		case EMMFDevSoundCIBitRateSetBitRate:
-			{
-			// we know that offset 2 contains a TInt
-			TPckgBuf<TInt> bitBuffer;
-			iUtility->ReadFromInputDesL(aMessage, &bitBuffer);
-			
-			DoSetBitRateL(bitBuffer());
-			retVal = KErrNone;
-			break;
-			}
-		case EMMFDevSoundCIBitRateGetSupportedBitRates:
-			{
-			// reset the current bitrate array
-			iBitRateArray.Reset();
-			DoGetSupportedBitRatesL(iBitRateArray);
-			
-			// send back the array count
-			TInt count = iBitRateArray.Count();
-			retVal = count;
-			break;
-			}
-		default:
-			{
-			User::Leave(KErrNotSupported);
-			}
-		}
-		
-	return retVal;
-	}
-	
-TInt CMMFDevSoundCIBitRateDeMux::DoSendSlaveSyncCommandResultL(const RMmfIpcMessage& aMessage)
-	{
-	TMMFDevSoundCIMessageData data;
-	
-	// decode message
-	iUtility->GetSyncMessageDataL(aMessage, data);
-	
-	switch (data.iCommand)
-		{
-		case EMMFDevSoundCIBitRateGetSupportedBitRatesArray:
-			{
-			DoCopyBitRateBufferToClientL(aMessage);		
-			break;
-			}
-		default:
-			{
-			User::Leave(KErrNotSupported);
-			}
-		}
-	return KErrNone;
-	}
-	
-void CMMFDevSoundCIBitRateDeMux::DoSendSlaveAsyncCommandL(const RMmfIpcMessage& /*aMessage*/)
-	{
-	// not used in this interface
-	}
-	
-void CMMFDevSoundCIBitRateDeMux::DoSendSlaveAsyncCommandResultL(const RMmfIpcMessage& /*aMessage*/)
-	{
-	// not used in this interface
-	}
-
-// bitrate custom interface implementation
-void CMMFDevSoundCIBitRateDeMux::DoGetSupportedBitRatesL(RArray<TInt>& aSupportedBitRates)
-	{
-	if (!iBitRateInterface)
-		{
-		User::Leave(KErrNotReady);
-		}
-		
-	iBitRateInterface->GetSupportedBitRatesL(aSupportedBitRates);
-	}
-
-
-void CMMFDevSoundCIBitRateDeMux::DoCopyBitRateBufferToClientL(const RMmfIpcMessage& aMessage)
-	{
-	if (!iBitRateInterface)
-		{
-		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 != iBitRateArray.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(iBitRateArray[i]);
-		}
-	
-	// write the data to the supplied descriptor buffer
-	TPtr8 ptrBuf = dataCopyBuffer->Ptr(0);
-	iUtility->WriteToOutputDesL(aMessage, ptrBuf);
-	stream.Close();
-
-	CleanupStack::PopAndDestroy(2); // iDataCopyBuffer, stream
-	}
-
-
-TInt CMMFDevSoundCIBitRateDeMux::DoBitRateL()
-	{
-	if (!iBitRateInterface)
-		{
-		User::Leave(KErrNotReady);
-		}
-	return iBitRateInterface->BitRateL();
-	}
-
-void CMMFDevSoundCIBitRateDeMux::DoSetBitRateL(TInt aBitRate)
-	{
-	if (!iBitRateInterface)
-		{
-		User::Leave(KErrNotReady);
-		}
-			
-	// set the bitrate		
-	iBitRateInterface->SetBitRateL(aBitRate);
-	}
-
-
-
-//
-// ImplementationTable
-//
-
-const TImplementationProxy ImplementationTable[] = 
-	{
-	IMPLEMENTATION_PROXY_ENTRY(KMmfUidCustomInterfaceBitRateMux,	CMMFDevSoundCIBitRateMux::NewL),
-	IMPLEMENTATION_PROXY_ENTRY(KMmfUidCustomInterfaceBitRateDeMux,	CMMFDevSoundCIBitRateDeMux::NewL),
-	};
-
-
-//
-// ImplementationGroupProxy
-//
-////////////////////////////////////////////////////////////////////////////////
-
-EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
-	{
-	aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);
-
-	return ImplementationTable;
-	}
-
-