--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/devsound/devsoundpluginsupport/src/CustomInterfaces/CMMFDevSoundCIBitRate.cpp Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,459 @@
+/*
+* 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;
+ }
+
+