--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/devsound/a3fdevsound/src/a3ffourcclookup/a3ffourcclookup.cpp	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,234 @@
+//a3ffourcclookup.cpp
+
+// Copyright (c) 2007-2009 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:
+//
+
+#include <a3f/a3ffourcclookup.h>
+#include "a3ffourcclookup.hrh"
+#include <a3f/a3f_trace_utils.h>
+#include <mm/mmcleanup.h>
+
+#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS
+#include <a3f/a3f_trace_ctxt_def.h>
+#endif
+_LIT8(KHexPrefix, "0x");
+_LIT8(KHexPrefix2, "0X");
+_LIT8(uTag,"<u>");
+_LIT8(mTag,"<m>");
+_LIT8(fTag,"<f>");
+
+const TInt KUidLength = 10;
+const TInt KTagLength = 3;
+const TInt KFourCCLength = 4;
+
+// ---------------------------------------------------------------------------
+// Function to compute Hash value
+// ---------------------------------------------------------------------------
+TUint32 TIntegerHash(const TUint32& aInt)
+	{
+	return DefaultHash::Integer(aInt);
+	}
+	
+// ---------------------------------------------------------------------------
+// Function to Check similar identities from Hash Table
+// ---------------------------------------------------------------------------
+TBool TIntegerIdent(const TUint32& /*aL*/, const TUint32& /*aR*/)
+	{
+	return ETrue;
+	}
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+CFourCCConvertor::~CFourCCConvertor()
+	{
+	if(iHashFourCCToFormat)
+		{
+		iHashFourCCToFormat->Close();
+		delete iHashFourCCToFormat;		
+		iHashFourCCToFormat = NULL;
+		}
+	if(iHashFormatToFourCC)
+		{
+		iHashFormatToFourCC->Close();	
+		delete iHashFormatToFourCC;
+		iHashFormatToFourCC = NULL;
+		}	
+	}
+	
+// ---------------------------------------------------------------------------
+// Default constructor
+// ---------------------------------------------------------------------------
+CFourCCConvertor::CFourCCConvertor()
+	{
+	TRACE_CREATE();
+	DP_CONTEXT(CFourCCConvertor::CFourCCConvertor *CD1*, CtxDevSound, DPLOCAL);
+	DP_IN();
+	DP_OUT();
+	}
+
+// ---------------------------------------------------------------------------
+// CFourCCConvertor::NewL
+// ---------------------------------------------------------------------------
+EXPORT_C CFourCCConvertor* CFourCCConvertor::NewL()
+	{
+	DP_STATIC_CONTEXT(CFourCCConvertor::NewL *CD0*, CtxDevSound, DPLOCAL);
+	DP_IN();
+	CFourCCConvertor* self = new(ELeave) CFourCCConvertor();
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	CleanupStack::Pop(self);
+	DP0_RET(self, "0x%x");
+	}
+		
+// ---------------------------------------------------------------------------
+// Second Phase Constructor
+// ---------------------------------------------------------------------------
+void CFourCCConvertor::ConstructL()
+	{
+	DP_CONTEXT(CCFourCCConvertor::ConstructL *CD1*, CtxDevSound, DPLOCAL);
+	DP_IN();
+	iHashFourCCToFormat = new(ELeave) RHashMap<TUint32,TUint32>(&TIntegerHash,&TIntegerIdent);
+	iHashFormatToFourCC = new(ELeave) RHashMap<TUint32,TUint32>(&TIntegerHash,&TIntegerIdent);
+	LoadL();
+	DP_OUT();
+	}
+
+// ---------------------------------------------------------------------------
+// CFourCCConvertor::LoadL
+// ---------------------------------------------------------------------------
+void CFourCCConvertor::LoadL()
+	{
+	DP_CONTEXT(CCFourCCConvertor::LoadL *CD1*, CtxDevSound, DPLOCAL);
+	DP_IN();
+	TUid KFourCCInterfaceDefinitionUid = {KUidA3fFourCCConvertorPlugin};
+
+	RImplInfoPtrArray ecomArray;
+	REComSession::ListImplementationsL(KFourCCInterfaceDefinitionUid, ecomArray);
+	CleanupResetAndDestroyPushL(ecomArray);
+
+	ASSERT(iHashFourCCToFormat);
+	ASSERT(iHashFormatToFourCC);
+	
+	TInt index;
+	index = ecomArray.Count();
+
+	if(index == 0)
+		{
+		User::Leave(KErrNotFound);
+		}
+	TInt tagPosition=0;
+	TUint32 formatIdValue = 0;
+	
+	// Construct the hash map
+	for (TInt i=0; i<index; i++)
+		{
+		// Get opaque data field
+		const TPtrC8 opaquedata(ecomArray[i]->OpaqueData());
+		TInt length = opaquedata.Length();
+				
+		// Extracting format uid
+		tagPosition = opaquedata.Find(uTag);
+		
+		if( (tagPosition >= 0) && ( (length-tagPosition) >= (KUidLength + KTagLength) ) )
+			{
+			// Format Uid
+			if(((((opaquedata).Mid(tagPosition + KTagLength, KUidLength) ).Length()) == KUidLength) &&
+				((((opaquedata).Mid(tagPosition + KTagLength, KUidLength)).Find(KHexPrefix)) ==0) ||
+				((((opaquedata).Mid(tagPosition + KTagLength, KUidLength)).Find(KHexPrefix2)) ==0))
+				{
+				TLex8 lexFormatUid(((opaquedata).Mid(tagPosition + KTagLength, KUidLength)).Right(8));
+				User::LeaveIfError(lexFormatUid.Val(formatIdValue,EHex));
+				}
+			// Check if this is master FourCC
+			TInt tagMasterFourCC=0;
+			tagMasterFourCC= (opaquedata).Find(mTag);
+
+			// Extract fourCC
+			tagPosition = (opaquedata).Find(fTag);
+			if((tagPosition >=0) && (length-tagPosition>=(KFourCCLength + KTagLength)))
+				{
+				TFourCC tempFourCC((opaquedata).Mid(tagPosition + KTagLength, KFourCCLength));
+				if(tempFourCC.FourCC() != 0)
+					{
+					iHashFourCCToFormat->InsertL(tempFourCC.FourCC(),formatIdValue); 
+					}
+				// Only fourCC master should be inserted
+				if(tagMasterFourCC >= 0)
+					{
+					iHashFormatToFourCC->InsertL(formatIdValue, tempFourCC.FourCC());
+					}
+				}
+			else
+				{
+				DP0(DLINFO,"CCFourCCConvertor::<f> tag not found or <f> tag should have four characters entry in resource file ");	
+				}
+			}
+		else
+			{
+			DP0(DLINFO,"CCFourCCConvertor::<u> tag not found or <u> tag should have ten characters e.g. 0X12122121 entry in resource file");
+			}
+		}
+		
+	CleanupStack::PopAndDestroy(&ecomArray);
+	DP_OUT();
+	}
+
+// ---------------------------------------------------------------------------
+// CFourCCConvertor::FormatToFourCC
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CFourCCConvertor::FormatToFourCC(TUid aFormat,TFourCC &aFourCC)
+	{
+	DP_CONTEXT(CCFourCCConvertor::FormatToFourCC *CD1*, CtxDevSound, DPLOCAL);
+	DP_IN();
+
+	ASSERT(iHashFormatToFourCC);
+
+	TInt err = KErrNone;
+	TUint32 *mime = iHashFormatToFourCC->Find(aFormat.iUid);
+	if(mime == NULL)
+		{
+		err = KErrNotFound;
+		}
+	else
+		{
+		aFourCC.Set(*mime);
+		}
+	DP0_RET(err, "%d");
+	}
+
+// ---------------------------------------------------------------------------
+// CFourCCConvertor::FourCCToFormat
+// ---------------------------------------------------------------------------
+EXPORT_C TInt CFourCCConvertor::FourCCToFormat(TFourCC aFourCC, TUid &aFormat) const
+	{
+	DP_CONTEXT(CCFourCCConvertor::FourCCToFormat *CD1*, CtxDevSound, DPLOCAL);
+	DP_IN();
+
+	ASSERT(iHashFourCCToFormat);
+
+	TInt err = KErrNone;
+	TUint32 *mime= iHashFourCCToFormat->Find(aFourCC.FourCC());
+	if(mime == NULL)
+		{
+		err = KErrNotFound;
+		}
+	else
+		{
+		aFormat.iUid = *mime;
+		}
+	DP0_RET(err, "%d");
+	}