devsoundextensions/mmfcustominterfaces/SpeechEncoderConfig/SpeechEncoderConfigMsgHdlr/src/SpeechEncoderConfigMsgHdlr.cpp
changeset 0 40261b775718
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/devsoundextensions/mmfcustominterfaces/SpeechEncoderConfig/SpeechEncoderConfigMsgHdlr/src/SpeechEncoderConfigMsgHdlr.cpp	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,299 @@
+/*
+* 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:   Message handler for speech encoder configuration interface
+*
+*/
+
+
+
+// INCLUDE FILES
+#include    "SpeechEncoderConfigMsgHdlr.h"
+#include    "SpeechEncoderConfigMsgs.h"
+#include    <SpeechEncoderConfig.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 ===============================
+
+// -----------------------------------------------------------------------------
+// CSpeechEncoderConfigMsgHdlr::CSpeechEncoderConfigMsgHdlr
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CSpeechEncoderConfigMsgHdlr::CSpeechEncoderConfigMsgHdlr(
+                                 CSpeechEncoderConfig* aSpeechEncoderConfigCI) :
+	CMMFObject(KUidSpeechEncoderConfig)
+    {
+    iSpeechEncoderConfigCI = aSpeechEncoderConfigCI;
+    }
+
+// -----------------------------------------------------------------------------
+// CSpeechEncoderConfigMsgHdlr::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CSpeechEncoderConfigMsgHdlr::ConstructL()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// CSpeechEncoderConfigMsgHdlr::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CSpeechEncoderConfigMsgHdlr* CSpeechEncoderConfigMsgHdlr::NewL(
+                                                  TAny*  aSpeechEncoderConfigCI)
+    {
+    CSpeechEncoderConfig* speechEncoderConfigCI = 
+                                  (CSpeechEncoderConfig*)aSpeechEncoderConfigCI;
+    CSpeechEncoderConfigMsgHdlr* self = 
+                new (ELeave) CSpeechEncoderConfigMsgHdlr(speechEncoderConfigCI);
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// Destructor
+EXPORT_C CSpeechEncoderConfigMsgHdlr::~CSpeechEncoderConfigMsgHdlr()
+	{
+	iSupportedBitrates.Close();
+	delete iDataCopyBuffer;
+	delete iSpeechEncoderConfigCI;
+	}
+
+// ---------------------------------------------------------
+// CSpeechEncoderConfigMsgHdlr::HandleRequest
+// Handles the messages from the proxy.
+// Calls a subfunction which determines which custom interface to call.
+// A subfunction is used to contain multiple leaving functions for a single
+// trap.
+// (other items were commented in a header).
+// ---------------------------------------------------------
+//
+EXPORT_C void CSpeechEncoderConfigMsgHdlr::HandleRequest(TMMFMessage& aMessage)
+	{
+    // debug panic
+	ASSERT(aMessage.Destination().InterfaceId() == KUidSpeechEncoderConfig);
+	TRAPD(error,DoHandleRequestL(aMessage));
+	if(error)
+		{
+		aMessage.Complete(error);
+		}
+	}
+
+// ---------------------------------------------------------
+// CSpeechEncoderConfigMsgHdlr::DoHandleRequestL
+// Determines which custom interface to call.
+// (other items were commented in a header).
+// ---------------------------------------------------------
+//
+void CSpeechEncoderConfigMsgHdlr::DoHandleRequestL(TMMFMessage& aMessage)
+	{
+	switch(aMessage.Function())
+		{
+		case ESecmGetNumOfSupportedBitrates:
+			{
+			DoGetNumOfSupportedBitratesL(aMessage);
+			break;
+			}
+		case ESecmGetSupportedBitrates:
+			{
+			DoGetSupportedBitratesL(aMessage);
+			break;
+			}
+		case ESecmSetBitrate:
+			{
+			DoSetBitrateL(aMessage);
+			break;
+			}
+		case ESecmGetBitrate:
+			{
+			DoGetBitrateL(aMessage);
+			break;
+			}
+		case ESecmSetVadMode:
+			{
+			DoSetVadModeL(aMessage);
+			break;
+			}
+		case ESecmGetVadMode:
+			{
+			DoGetVadModeL(aMessage);
+			break;
+			}
+		default:
+			{
+			aMessage.Complete(KErrNotSupported);
+			}
+		}
+	}
+
+// ---------------------------------------------------------
+// CSpeechEncoderConfigMsgHdlr::DoGetNumOfSupportedBitratesL
+// Handles the message from the proxy and calls the custom interface.
+// The custom interface returns the data requested and this function
+// writes it back to the proxy. It also creates a buffer and fills
+// it with the bitrate data to be returned in the subsequent call
+// of DoGetSupportedBitratesL().
+// (other items were commented in a header).
+// ---------------------------------------------------------
+//
+void CSpeechEncoderConfigMsgHdlr::DoGetNumOfSupportedBitratesL(
+                                                       TMMFMessage& aMessage)
+	{
+	iSupportedBitrates.Reset();
+	TInt status = iSpeechEncoderConfigCI->GetSupportedBitrates(
+	                                                     iSupportedBitrates);
+	CreateBufFromUintArrayL(iSupportedBitrates);
+	if (status == KErrNone)
+    	{
+	    TPckgBuf<TUint> pckg;
+    	pckg() = iSupportedBitrates.Count();
+	    aMessage.WriteDataToClientL(pckg);
+	    }
+    aMessage.Complete(status);
+	}
+
+// ---------------------------------------------------------
+// CSpeechEncoderConfigMsgHdlr::CreateBufFromUintArrayL
+// Utility function used to create a buffer a fill it with data from the array
+// passed in.
+// (other items were commented in a header).
+// ---------------------------------------------------------
+//
+void CSpeechEncoderConfigMsgHdlr::CreateBufFromUintArrayL(RArray<TUint>& aArray)
+	{
+	delete iDataCopyBuffer;
+	iDataCopyBuffer = NULL;
+
+	iDataCopyBuffer = CBufFlat::NewL(8);
+	RBufWriteStream stream;
+	stream.Open(*iDataCopyBuffer);
+	CleanupClosePushL(stream);
+	for (TInt i=0;i<aArray.Count();i++)
+		stream.WriteUint32L(aArray[i]);
+	CleanupStack::PopAndDestroy(&stream);//stream
+	}
+	
+// ---------------------------------------------------------
+// CSpeechEncoderConfigMsgHdlr::DoGetSupportedBitratesL
+// Handles the message from the proxy and calls the custom interface.
+// The custom interface returns the data requested and this function
+// writes it back to the proxy.
+// (other items were commented in a header).
+// ---------------------------------------------------------
+//
+void CSpeechEncoderConfigMsgHdlr::DoGetSupportedBitratesL(TMMFMessage& aMessage)
+	{
+	if (!iDataCopyBuffer)
+		User::Leave(KErrNotReady);
+	aMessage.WriteDataToClientL(iDataCopyBuffer->Ptr(0));
+    aMessage.Complete(KErrNone);
+	}
+	
+// ---------------------------------------------------------
+// CSpeechEncoderConfigMsgHdlr::DoSetBitrateL
+// Handles the message from the proxy and calls the custom interface method.
+// The data passed from the proxy is read from the message and passed to
+// the custom interface.
+// (other items were commented in a header).
+// ---------------------------------------------------------
+//
+void CSpeechEncoderConfigMsgHdlr::DoSetBitrateL(TMMFMessage& aMessage)
+	{
+	TPckgBuf<TUint> pckg;
+	aMessage.ReadData1FromClientL(pckg);
+	TInt status = iSpeechEncoderConfigCI->SetBitrate(pckg());
+    aMessage.Complete(status);
+	}
+
+// ---------------------------------------------------------
+// CSpeechEncoderConfigMsgHdlr::DoGetBitrateL
+// Handles the message from the proxy and calls the custom interface.
+// The custom interface returns the data requested and this function
+// writes it back to the proxy.
+// (other items were commented in a header).
+// ---------------------------------------------------------
+//
+void CSpeechEncoderConfigMsgHdlr::DoGetBitrateL(TMMFMessage& aMessage)
+	{
+	TUint bitrate;
+	TInt status = iSpeechEncoderConfigCI->GetBitrate(bitrate);
+	if (status == KErrNone)
+    	{
+    	TPckgBuf<TUint> pckg;
+    	pckg() = bitrate;
+	    aMessage.WriteDataToClientL(pckg);
+    	}
+    aMessage.Complete(status);
+	}
+
+// ---------------------------------------------------------
+// CSpeechEncoderConfigMsgHdlr::DoSetVadModeL
+// Handles the message from the proxy and calls the custom interface method.
+// The data passed from the proxy is read from the message and passed to
+// the custom interface.
+// (other items were commented in a header).
+// ---------------------------------------------------------
+//
+void CSpeechEncoderConfigMsgHdlr::DoSetVadModeL(TMMFMessage& aMessage)
+	{
+	TPckgBuf<TBool> pckg;
+	aMessage.ReadData1FromClientL(pckg);
+	TInt status = iSpeechEncoderConfigCI->SetVadMode(pckg());
+    aMessage.Complete(status);
+	}
+
+// ---------------------------------------------------------
+// CSpeechEncoderConfigMsgHdlr::DoGetVadModeL
+// Handles the message from the proxy and calls the custom interface.
+// The custom interface returns the data requested and this function
+// writes it back to the proxy.
+// (other items were commented in a header).
+// ---------------------------------------------------------
+//
+void CSpeechEncoderConfigMsgHdlr::DoGetVadModeL(TMMFMessage& aMessage)
+	{
+	TBool vadMode;
+	TInt status = iSpeechEncoderConfigCI->GetVadMode(vadMode);
+	if (status == KErrNone)
+    	{
+    	TPckgBuf<TBool> pckg;
+	    pckg() = vadMode;
+    	aMessage.WriteDataToClientL(pckg);
+    	}
+    aMessage.Complete(status);
+	}
+
+
+
+// End of File