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// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// source\server\MmfBtSwCodecDatapath.cpp
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//
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//
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#include "mmfBtSwCodecDataPath.h"
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CMMFSwCodecDataPath::~CMMFSwCodecDataPath()
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{
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}
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/*
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* CycleAudioBufferL
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*
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* Sets up a usable buffer for passing to MMF
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*
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* This method has been written such that it must allocate a new buffer before
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* replacing the existing one. The purpose of this is to force creation of a
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* new buffer. Simply deleting and then re-allocing may result in the same
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* address being used.
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*
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* Only cycles if there is enough memory
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*
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*/
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#ifdef __CYCLE_MMF_DATABUFFERS__
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CMMFDataBuffer* CMMFSwCodecDataPath::CycleAudioBuffer(CMMFDataBuffer* aBuffer)
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{
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CMMFDataBuffer* buffer = NULL;
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TUint bufferSize = aBuffer->Data().MaxLength();
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#ifdef __USE_MMF_TRANSFERBUFFERS__
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TRAPD(err, buffer = CreateTransferBufferL(bufferSize, static_cast<CMMFTransferBuffer*>(aBuffer)));
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#else
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TRAPD(err,buffer = CMMFDataBuffer::NewL(bufferSize));
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if (err == KErrNone)
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{
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delete aBuffer;
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}
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#endif
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if (err != KErrNone)
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{//there was a problem creating buffer eg OOM so use same buffer
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buffer = aBuffer;
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}
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return buffer;
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}
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#endif
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/*
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* DoCleanupRHandleBase
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*
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* This method will initially Close the handle and then delete it.
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*
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*/
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#ifdef __USE_MMF_TRANSFERBUFFERS__
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inline static void DoCleanupRHandleBase(TAny* aRHandleBase)
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{
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ASSERT(aRHandleBase);
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RHandleBase* rHandleBase = STATIC_CAST(RHandleBase*, aRHandleBase);
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TRAPD(error, rHandleBase->Close());
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delete aRHandleBase;
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}
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CMMFTransferBuffer* CMMFSwCodecDataPath::CreateTransferBufferL(TUint aBufferSize, CMMFTransferBuffer* aOldBuffer)
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{
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CMMFTransferBuffer* buffer = NULL;
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RTransferBuffer* transBuffer = new (ELeave) RTransferBuffer;
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TCleanupItem bufferCleanupItem(DoCleanupRHandleBase, transBuffer); //closes and deletes.
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CleanupStack::PushL(bufferCleanupItem);
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RTransferWindow* transWindow = new (ELeave) RTransferWindow;
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TCleanupItem windowCleanupItem(DoCleanupRHandleBase, transWindow); //closes and deletes.
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CleanupStack::PushL(windowCleanupItem);
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User::LeaveIfError(transBuffer->Create(aBufferSize));
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User::LeaveIfError(transWindow->Create(aBufferSize));
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User::LeaveIfError(transWindow->MapInBuffer(*transBuffer));
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buffer = CMMFTransferBuffer::NewL(*transWindow);
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delete aOldBuffer; //closes RTransferWindow
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delete iTransferWindow;
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if(iTransferBuffer)
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{
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iTransferBuffer->Close();
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}
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delete iTransferBuffer;
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iTransferBuffer = transBuffer;
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iTransferWindow = transWindow;
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CleanupStack::Pop(transWindow);
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CleanupStack::Pop(transBuffer);
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return buffer;
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}
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#endif
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#ifdef __USE_MMF_PTRBUFFERS__
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CMMFPtrBuffer* CMMFSwCodecDataPath::CreatePtrBufferL(TUint aBufferSize)
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{
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CMMFPtrBuffer* buffer = NULL;
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if (iPtrBufferMemoryBlock)
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delete iPtrBufferMemoryBlock;//incase already exisits
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iPtrBufferMemoryBlock = HBufC8::NewL(aBufferSize);
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TPtr8 ptrMemoryBlock(iPtrBufferMemoryBlock->Des());
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buffer = CMMFPtrBuffer::NewL(ptrMemoryBlock);
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return buffer;
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}
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#endif // __USE_MMF_PTRBUFFERS__
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