--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/devsound/devsoundrefplugin/src/plugin/audio/mmfpcm16SwapEndianhwdevice.cpp	Fri Oct 08 19:40:43 2010 +0100
@@ -0,0 +1,156 @@
+// Copyright (c) 2003-2009 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:
+// MmfMulawToPcm16HwDevice.cpp
+// 
+//
+
+#include "MMFAudioCodec.h"
+#include <mmf/common/mmfpaniccodes.h>
+#include "mmfpcm16SwapEndianhwdevice.h"
+
+/**
+*
+* NewL
+* @return 'CMMFPcm16SwapEndianHwDevice*'
+*
+*/
+CMMFPcm16SwapEndianHwDevice* CMMFPcm16SwapEndianHwDevice::NewL()
+	{
+	CMMFPcm16SwapEndianHwDevice* self=new(ELeave) CMMFPcm16SwapEndianHwDevice();
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+/**
+*
+* ~CMMFPcm16SwapEndianHwDevice
+*/
+CMMFPcm16SwapEndianHwDevice::~CMMFPcm16SwapEndianHwDevice()
+	{
+	}
+
+/**
+*
+* ConstructL
+*
+*/
+void CMMFPcm16SwapEndianHwDevice::ConstructL()
+	{
+	iCodec = new (ELeave)CMMFPcm16SwapEndianCodec();
+	}
+
+/**
+*
+* Codec
+*
+*/
+CMMFSwCodec &CMMFPcm16SwapEndianHwDevice::Codec()
+	{
+	return *iCodec;
+	}
+
+/**
+*
+* ProcessL
+* @param aSrc
+* @param aDst
+* @return 'CMMFSwCodec::TCodecProcessResult'
+*
+*/
+CMMFSwCodec::TCodecProcessResult CMMFPcm16SwapEndianCodec::ProcessL(const CMMFBuffer& aSrc, CMMFBuffer& aDst)
+	{
+	CMMFSwCodec::TCodecProcessResult result;
+	result.iCodecProcessStatus = TCodecProcessResult::EProcessComplete;
+	
+	//convert from generic CMMFBuffer to CMMFDataBuffer
+	const CMMFDataBuffer* src = STATIC_CAST(const CMMFDataBuffer*, &aSrc);
+	CMMFDataBuffer* dst = STATIC_CAST(CMMFDataBuffer*, &aDst);
+	
+	//[ check the preconditions ]
+	if( !CheckPreconditions( src, dst ))
+		{
+		//[ precondition violation ]
+		User::Leave( KErrArgument );
+		}
+	
+	TInt srcUse = src->Data().Length();
+	
+	//we need to cast away CONST even on the source, as the TClass needs a TUint8*	
+	TUint8* pSrc = CONST_CAST(TUint8*,src->Data().Ptr());
+	TUint8* pDst = CONST_CAST(TUint8*,dst->Data().Ptr());
+	
+	TInt noSamples = srcUse / 2; 	//divide by TWO as 2 bytes are equal to 1 sample
+	iPcm16EndianSwap.Convert(pSrc, pDst, noSamples );
+	
+	result.iCodecProcessStatus  = TCodecProcessResult::EProcessComplete;
+	result.iSrcBytesProcessed   = srcUse;
+	result.iDstBytesAdded       = srcUse;
+	
+	dst->Data().SetLength(srcUse);
+	
+	//[ check post conditions ]
+	__ASSERT_DEBUG( (src->Position() == 0), TMmfAudioCodecPanicsNameSpace::Panic( 	TMmfAudioCodecPanicsNameSpace::EPostConditionViolation ));
+	__ASSERT_DEBUG( (dst->Position() == 0), TMmfAudioCodecPanicsNameSpace::Panic( 	TMmfAudioCodecPanicsNameSpace::EPostConditionViolation ));
+	__ASSERT_DEBUG( src->Data().Length() == dst->Data().Length(), TMmfAudioCodecPanicsNameSpace::Panic( 	TMmfAudioCodecPanicsNameSpace::EPostConditionViolation )); 
+	__ASSERT_DEBUG( dst->Data().Length() % 2 == 0, TMmfAudioCodecPanicsNameSpace::Panic( 	TMmfAudioCodecPanicsNameSpace::EPostConditionViolation )); // pcm output
+	
+	return result;
+	}
+
+/**
+*
+* Preconditions
+* This methos tests the preconditions of the ProcessL method
+* @return TBool ETrue for sucess and EFalse for failure of the preconditions
+*
+**/
+TBool CMMFPcm16SwapEndianCodec::CheckPreconditions( const CMMFDataBuffer* aSrcBuffer, CMMFDataBuffer* aDestBuffer )
+	{
+	TBool result = EFalse;
+	
+	if(! aSrcBuffer )
+		{
+		return result;
+		}
+	
+	if( ! aDestBuffer )
+		{
+		return result;
+		}
+	
+	// Check position of src and dest are 0
+	if( aSrcBuffer->Position() )
+		{
+		return result;
+		}
+	
+	// Check position of src and dest are 0
+	if( aDestBuffer->Position() )
+		{
+		return result;
+		}
+	
+	// check there are sufficient bytes in the output to consume the input
+	if( ( aSrcBuffer->Data().Length() > aDestBuffer->Data().MaxLength() ) ||
+		( aSrcBuffer->Data().Length() % 2 != 0 ))
+		{
+		return result;
+		}
+	
+	result = ETrue;  // preconditions have been satisfied
+	
+	return result;
+	}