diff -r 000000000000 -r 5d03bc08d59c fbs/fontandbitmapserver/sfbs/FBSTOP.CPP
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fbs/fontandbitmapserver/sfbs/FBSTOP.CPP	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,726 @@
+// Copyright (c) 1995-2009 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 <hal.h>
+#include <gdi.h>
+#include <fntstore.h>
+#include <bitmap.h>
+#include <ecom/ecom.h>
+#include "fbsmessage.h"
+#include <graphics/bitmapuid.h>
+#include "SERVER.H"
+#include "BackGroundCompression.h"
+#include "BitwiseBitmap.inl"
+#include "bitmapconst.h"
+#include <graphics/openfontconstants.h>
+#include <graphics/openfontrasterizer.h>
+#include <graphics/gdi/glyphsample.h>
+
+// Local utility functions
+void ListImplementationsWithRetry(TUid& aInterfaceUid, RImplInfoPtrArray &aImplementationArray, TBool aRomOnly);
+
+
+CFbTop::CFbTop():
+	iDefaultLanguageForMetrics(ELangNone)
+	{
+	}
+
+CFbTop::~CFbTop()
+	{
+	if (iConIx)
+		{
+		iConIx->Remove(iBitmapCon);
+		iConIx->Remove(iFontCon);
+		}
+	// there are no bitmap objects left, so the background compression queue must be empty
+	delete iBackgroundCompression;
+	delete iMBMCache;
+	delete iFontStore;
+	iFilesys.Close();
+	iHeap->Check();
+	__RHEAP_MARKEND(iHeap);
+	delete iPile;
+	iHeap->Close();
+	iChunk.Close();
+	iLargeBitmapChunk.Close();
+	delete iConIx;
+#ifdef SYMBIAN_DEBUG_FBS_LOCKHEAP
+	iDebugMutex.Close();
+#endif
+	iFontNameAlias.ResetAndDestroy();
+	iBitmapObjectIndex.Reset();
+	REComSession::FinalClose();
+	}
+
+CFbTop* CFbTop::NewL()
+	{
+	CFbTop* pT=new(ELeave) CFbTop;
+	CleanupStack::PushL(pT);
+	pT->ConstructL();
+	CleanupStack::Pop();
+	return(pT);
+	}
+
+void CFbTop::ConstructL()
+	{
+	TInt maxmem = 0;
+	HAL::Get(HALData::EMemoryRAM, maxmem);
+	ASSERT(maxmem > 0);
+	TInt maxHeapSize = Min(maxmem, KFbServSharedHeapMaxSize);
+	
+	TChunkHeapCreateInfo sharedHeapCreateInfo(KFBSERVInitialHeapSize, maxHeapSize);
+	sharedHeapCreateInfo.SetCreateChunk(&KFBSERVSharedChunkName);
+	sharedHeapCreateInfo.SetSingleThread(EFalse);
+	sharedHeapCreateInfo.SetAlignment(0);
+	sharedHeapCreateInfo.SetGrowBy(KMinHeapGrowBy * KFBSERVHeapGrowByMultiplier);
+
+	if(KFbServWritableDataPagingMode == EFbsWdpPageBitmapDataAndSharedHeapChunksOnly)
+		{
+		//Request that the shared heap chunk is paged.
+		sharedHeapCreateInfo.SetPaging(TChunkHeapCreateInfo::EPaged);
+		}
+	else
+		{
+		//Use the creating process's paging attributes.
+		sharedHeapCreateInfo.SetPaging(TChunkHeapCreateInfo::EUnspecified);
+		}
+
+	iHeap = UserHeap::ChunkHeap(sharedHeapCreateInfo);
+	
+	User::LeaveIfError(iChunk.OpenGlobal(KFBSERVSharedChunkName,ETrue));
+	TInt virtualSize = CChunkPile::VirtualSize();
+	
+	TChunkCreateInfo createInfo;
+	createInfo.SetDisconnected(0, 0, virtualSize);
+	createInfo.SetGlobal(KFBSERVLargeChunkName);
+	createInfo.SetOwner(EOwnerProcess);
+	createInfo.SetClearByte(0xff); // clear to white on creation
+
+	if(KFbServWritableDataPagingMode == EFbsWdpPageBitmapDataChunkOnly || 
+		KFbServWritableDataPagingMode == EFbsWdpPageBitmapDataAndSharedHeapChunksOnly)
+		{
+		//Request that large bitmap chunk is paged.
+		createInfo.SetPaging(TChunkCreateInfo::EPaged);
+		}
+	else
+		{
+		//Use the creating process's paging attributes.
+		createInfo.SetPaging(TChunkCreateInfo::EUnspecified);
+		}
+
+	User::LeaveIfError(iLargeBitmapChunk.Create(createInfo));
+	__RHEAP_MARK(iHeap);
+	iConIx=CObjectConIx::NewL();
+	iBitmapCon=iConIx->CreateL();
+	iFontCon=iConIx->CreateL();
+	User::LeaveIfError(iFilesys.Connect());
+#ifdef SYMBIAN_DEBUG_FBS_LOCKHEAP
+	User::LeaveIfError(iDebugMutex.CreateGlobal(KFBSERVDebugMutexName));
+#endif
+	iPile = CChunkPile::NewL(iLargeBitmapChunk);
+	iFontStore=CFontStore::NewL(iHeap);
+	//Constructing a cache to store the stream ids of the bitmaps from a mbm file.
+	//The cache here will store maximum 30 bitmaps before  & maximum 30 after the 
+	//current loaded bitmap.These values are chosen as to optimize the boottime performance
+	//as we notice during the boottime logs,sequential loading of bitmaps never exceed 30 bitmaps.
+	// The cache will also store maximum 5 mbm files. This number must be as low as possible
+	// while trying to minimize flushing of the cache due to mbm file switching.
+	iMBMCache=new (ELeave) CFbTopStreamIdCache(30,30,5);
+
+	LoadOpenFontLibraries();
+	
+	iFontStore->LoadFontsAtStartupL();
+	LoadShaperFactories();
+
+	// start a new thread for background compression after all the other objects have been created
+	iBackgroundCompression = CFbsBackgroundCompression::NewL(*this);
+	}
+
+
+
+
+/*
+Load all ECOM implemented rasterizer DLLs.
+*/
+
+void CFbTop::LoadOpenFontLibraries()
+	{
+	RImplInfoPtrArray implementationArray;
+	TUid uid = {KUidOpenFontRasterizerPlunginInterface};
+
+	// get implementation list
+	ListImplementationsWithRetry(uid, implementationArray, EFalse);
+
+	const TInt availCount = implementationArray.Count();
+	for (TInt count=0; count < availCount; ++count)
+		{
+		const CImplementationInformation* info = implementationArray[count];
+		// Create & install a rasterizer
+		// ignore Leaves, as any necessary cleanup will have already been done through the cleanup stack
+		TRAP_IGNORE(SafeInstallOfRasterizerL(info->ImplementationUid()));
+		}
+	
+	// free memory
+	implementationArray.ResetAndDestroy();
+	}
+
+
+/*
+Load all ECOM implemented shaper factory DLLs.
+*/	
+void CFbTop::LoadShaperFactories()
+	{
+	RImplInfoPtrArray implementationArray;
+	TUid uid = {KUidShaperFactoryPlunginInterface};
+
+	// get implementation list
+	ListImplementationsWithRetry(uid, implementationArray, ETrue);
+
+	const TInt availCount = implementationArray.Count();
+	for (TInt count=0;count<availCount;++count)
+		{
+		const CImplementationInformation* info = implementationArray[count];
+		// Create & install a shaper factory
+		// ignore Leaves, as any necessary cleanup will have already been done through the cleanup stack
+		TRAP_IGNORE(SafeInstallOfShaperFactoryL(info->ImplementationUid()));
+		}
+
+	// free memory
+	implementationArray.ResetAndDestroy();
+	}
+
+
+void ListImplementationsWithRetry(TUid& aInterfaceUid, RImplInfoPtrArray &aImplementationArray, TBool aRomOnly)
+	{
+	// Making sure that no race situation arises between FBserv and Ecom
+	// If ECom is not ready, give it another chance and try again. if it still doesn't work 
+	// after the third try, then it just carries on quietly and fails... 
+	for (TInt ecomnotready =0; ecomnotready <3; ecomnotready++)
+		{
+		TInt ecomError = KErrNone;
+		if (aRomOnly)
+			{
+			TEComResolverParams resParams;
+			TRAP(ecomError, REComSession::ListImplementationsL(aInterfaceUid, resParams, KRomOnlyResolverUid, aImplementationArray));
+			}
+		else
+			{ // default resolver
+			TRAP(ecomError, REComSession::ListImplementationsL(aInterfaceUid, aImplementationArray));
+			}
+
+		if (!ecomError)
+			{
+			return;
+			}
+		else
+			{
+			User::After(0);
+			}
+		}
+	}
+
+// utility methods to transfer ownership, or destroy object on failure
+void CFbTop::SafeInstallOfRasterizerL(TUid aInterfaceImplUid)
+	{
+	COpenFontRasterizer* rasterizer = COpenFontRasterizer::NewL(aInterfaceImplUid);
+	CleanupStack::PushL(rasterizer);
+	// Install it in the font store.
+	iFontStore->InstallRasterizerL(rasterizer);
+	CleanupStack::Pop(rasterizer);
+	}
+
+
+void CFbTop::SafeInstallOfShaperFactoryL(TUid aInterfaceImplUid)
+	{
+	CShaperFactory* shaperFactory = CShaperFactory::NewL(aInterfaceImplUid);
+	CleanupStack::PushL(shaperFactory);
+	// Install it in the font store.
+	iFontStore->InstallShaperFactoryL(shaperFactory);
+	CleanupStack::Pop(shaperFactory);
+	}
+
+/**
+Gets the nearest matching font for a given font specification. If the named font cannot be found 
+font aliases are checked. 
+
+@param aFontObjPtr On success this contains the font object that is the closest match.
+@param aMessage The font request message.
+@param aFontSpec The font spec to match.
+@param aMaxHeight The maximum height of the font to match.
+@return KErrNone if successful, KErrNotFound if the font is not found, or one of the other System Error codes.
+ */
+TInt CFbTop::GetNearestFont(
+	CFontObject*&		aFontObjPtr,
+	TFbsMessage			aMessage,
+	const TFontSpec&	aFontSpec,
+	TInt				aMaxHeight)
+	{
+#ifdef _DEBUG
+	User::Heap().Check();
+	iHeap->Check();
+#endif
+	aFontObjPtr = NULL;
+
+	TFontSpec fontSpec(aFontSpec);
+
+	// Check if the font typeface is empty and if so use the system default font if it is set
+	if (fontSpec.iTypeface.iName.Length() == 0 && iSystemDefaultFontTypefaceName.Length() != 0)
+		{
+		fontSpec.iTypeface.iName = iSystemDefaultFontTypefaceName;
+		}
+
+	if (GlyphSample::EScriptDefault == fontSpec.ScriptTypeForMetrics())
+		{
+		fontSpec.SetScriptTypeForMetrics(iDefaultLanguageForMetrics);
+		}
+
+	// Find the requested font
+	TBool familyNameExistsInTypefaceStore = iFontStore->HaveTypefaceFamilyName(fontSpec.iTypeface.iName);
+	
+	// If the font is not found try finding an alias font
+	if (!familyNameExistsInTypefaceStore) 
+		{
+		TInt aliasIndex = FindFontNameAlias(fontSpec.iTypeface.iName);
+		//KErrNotFound is the only error which can be returned
+		if (aliasIndex != KErrNotFound)
+			{
+			fontSpec.iTypeface.iName = *iFontNameAlias[aliasIndex + 1];
+			}
+		}
+
+	CFont* font = NULL;
+	TInt ret = GetNearestNonAliasedFont(font, aMessage, fontSpec, aMaxHeight);
+
+	if (ret != KErrNone)
+		{
+		return ret;
+		}
+
+	return CreateFontObjectFromFont(aFontObjPtr, font);
+	}
+	
+/**
+Gets the nearest matching loaded font for a given font specification.
+
+@param aFont On success this contains the font object that is the closest match.
+@param aMessage The font request message.
+@param aFontSpec The font spec to match.
+@param aMaxHeight The maximum height of the font to match.
+@return KErrNone if successful, KErrNotFound if the font is not found, or one of the other System Error codes.
+*/
+TInt CFbTop::GetNearestNonAliasedFont(CFont*& aFont, TFbsMessage aMessage, const TFontSpec&	aFontSpec, TInt	aMaxHeight)
+	{
+	TInt ret = KErrNotSupported;
+	switch (aMessage)
+		{
+		case EFbsMessGetNearestFontToDesignHeightInTwips:
+			{
+			ret = iFontStore->GetNearestFontToDesignHeightInTwips(aFont, aFontSpec);
+			break;
+			}
+		case EFbsMessGetNearestFontToDesignHeightInPixels:
+			{
+			ret = iFontStore->GetNearestFontToDesignHeightInPixels(aFont, aFontSpec);
+			break;
+			}
+		case EFbsMessGetNearestFontToMaxHeightInTwips:
+			{
+			ret = iFontStore->GetNearestFontToMaxHeightInTwips(aFont, aFontSpec, aMaxHeight);
+			break;
+			}
+		case EFbsMessGetNearestFontToMaxHeightInPixels:
+			{
+			ret = iFontStore->GetNearestFontToMaxHeightInPixels(aFont, aFontSpec, aMaxHeight);
+			break;
+			}
+		}
+	return ret;
+	}
+
+TInt CFbTop::CreateFontObjectFromFont(CFontObject*& aFontObjPtr, CFont* aFont)
+	{
+	CFontObject* fontObjPtr = new CFontObject(iFontStore);
+	if (!fontObjPtr)
+		{
+		iFontStore->ReleaseFont(aFont);
+		return KErrNoMemory;
+		}
+	
+	fontObjPtr->iAddressPointer = reinterpret_cast<CBitmapFont*>(aFont);
+	fontObjPtr->iHeightInTwips = ((aFont->HeightInPixels() * iFontStore->iKPixelHeightInTwips) + 667) / 1000;
+	TRAPD(ret, iFontCon->AddL(fontObjPtr));
+	if (ret != KErrNone)
+		{
+		fontObjPtr->Close();
+		}
+	else
+		{ // transfer ownership
+		aFontObjPtr = fontObjPtr;
+		}
+	return ret;
+	}
+
+
+/** Create a Bitmap Font, from a UID and Algorithmic drawing Style see CFontStore::GetFontById()
+@internalComponent
+*/
+TInt CFbTop::GetFontById(CFontObject*& aFontObjPtr,TUid aUid,const TAlgStyle& aAlgStyle)
+	{
+#ifdef _DEBUG
+	User::Heap().Check();
+	iHeap->Check();
+#endif
+	aFontObjPtr=NULL;
+	CBitmapFont* font=NULL;
+	TInt ret=iFontStore->GetFontById((CFont*&)font,aUid,(TAlgStyle&)aAlgStyle);
+	if (ret != KErrNone)
+		{
+		return ret;
+		}
+	return CreateFontObjectFromFont(aFontObjPtr, font);
+	}
+
+
+/** Create a bitmap with the given size, display mode and UID.
+
+@param aSize Size of the bitmap in pixels.
+@param aDispMode Display mode of the bitmap.
+@param aUid The UID to use for bitmap creation. This can be:
+	- KUidCFbsBitmapCreation for standard bitmaps.
+	- The application UID for hardware bitmaps.
+	- The data type UID for extended bitmaps.
+@param aReplacement If ETrue the bitmap is being created as a replacement
+	for a bitmap being made dirty by a resize or compress operation.
+@param aDataSize If different from zero, it indicates that the bitmap to create
+	is an extended bitmap and specifies the size in bytes of the bitmap.
+	If equal to zero, it indicates that the bitmap to create is a standard
+	bitmap or a hardware bitmap, depending on the value of aUid, and the size
+	in bytes is calculated from the size in pixels and the display mode.
+@internalComponent
+*/
+CBitmapObject* CFbTop::CreateBitmapL(const TSize& aSize, TDisplayMode aDispMode, TUid aUid, TBool aReplacement, TInt aDataSize)
+	{
+#ifdef _DEBUG
+	User::Heap().Check();
+	iHeap->Check();
+#endif
+	CBitwiseBitmap* bmp=(CBitwiseBitmap*)iHeap->AllocL(sizeof(CBitwiseBitmap) + sizeof(CBitwiseBitmap::TExtra));
+	new(bmp) CBitwiseBitmap(iHeap,iPile);
+	CleanupDeletePushL(bmp);  // CBitwiseBitmap is not derived from CBase!
+
+	if (aDataSize == 0)
+		User::LeaveIfError(bmp->Construct(aSize, aDispMode, aUid));
+	else
+		User::LeaveIfError(bmp->ConstructExtended(aSize, aDispMode, aUid, aDataSize));
+	// bmp popped out of the clean-up stack by NewL
+	CBitmapObject* bmpObj = CBitmapObject::NewL(*this, bmp, aReplacement);
+	if (!aReplacement)
+		{
+		bmp->Extra()->iSerialNumber = iNextAvailableSerialNumber++;
+		}
+
+	return bmpObj;
+	}
+
+CBitmapObject* CFbTop::LoadBitmapL(const TDesC& aFilename, TInt32 aId, TUint aFileOffset, RFile* aFile, TInt aSessionHandle)
+	{
+	CBitwiseBitmap* bmp=DoLoadBitmapLC(aFilename, aId, aFileOffset, aFile, aSessionHandle);
+	// bmp popped out of the clean-up stack by NewL
+	CBitmapObject* bmpObj = CBitmapObject::NewL(*this, bmp, EFalse);
+
+	return bmpObj;
+	}
+
+_LIT(KZDrive, "z:");
+
+CBitwiseBitmap* CFbTop::DoLoadBitmapLC(const TDesC& aFilename, TInt32 aId, TUint aFileOffset, RFile* aFile, TInt aSessionHandle)
+	{
+#ifdef _DEBUG
+	User::Heap().Check();
+	iHeap->Check();
+#endif
+	CBitwiseBitmap* bmp=(CBitwiseBitmap*)iHeap->AllocL(sizeof(CBitwiseBitmap) + sizeof(CBitwiseBitmap::TExtra));
+	new(bmp) CBitwiseBitmap(iHeap,iPile);
+	bmp->Extra()->iSerialNumber = iNextAvailableSerialNumber++;
+	CleanupDeletePushL(bmp);  // CBitwiseBitmap is not derived from CBase!
+
+	if (NULL == aFile)
+		{
+		// In this case file should be in z: drive
+		// so load the bitmap from the mbm cache
+		TStreamId streamid(0);
+		streamid=iMBMCache->GetStreamIdL(iFilesys,aFilename,aId,aFileOffset,aSessionHandle);
+		bmp->ConstructL(iMBMCache->MruFileStore(),streamid);
+		}
+	else
+		{
+		//only use the cache when it is Rom File which is read only because when using
+		//the cache the file store is always opened as read access until it is replaced by
+		//another different file, Trying to write it(RAM file) will cause access violation
+		//and therefore we have to split the implementation into two parts one for ROM
+		//and one for RAM
+		if (aFilename.Left(2).CompareF(KZDrive))
+			{
+			// File is not in ROFS
+			bmp->ConstructL(*aFile,aId,aFileOffset);
+			}
+		else
+			{
+			// File is in ROFS
+			TStreamId streamid(0);
+			streamid=iMBMCache->GetStreamIdL(*aFile,aFilename,aId,aFileOffset,aSessionHandle);
+
+			bmp->ConstructL(iMBMCache->MruFileStore(),streamid);
+			}
+		}
+	return bmp;
+	}
+
+
+/* Similar to LoadBitmap.
+This function only performs a load the first time it is called for a
+particular bitmap.  Subsequent calls increment a reference counting object.
+
+Upon return, aBmpObjPtr points to an object containing a pointer to the loaded bitmap.
+*/
+CSharedBitmapObject* CFbTop::ShareBitmapL(TDes& aFilename, TInt32 aId, TUint aFileOffset, RFile* aFile, TInt aSessionHandle)
+	{
+	TTime modtime(0);
+	if (aFilename.Left(2).CompareF(KZDrive))// instead of Compare, CompareF is used to perform folding prior to Compare which is safe with Unicode.
+		{
+		// file is not in z: drive so it should not be null.
+		__ASSERT_DEBUG(aFile != NULL, User::Panic(KFBSERVPanicCategory, KErrBadHandle));
+		// File is not in ROM so ModTime is needed to identify it
+		User::LeaveIfError(aFile->Modified(modtime));
+		}
+
+	// Creation of the key is performed here so that it can potentially be
+	// reused in both object lookup and object creation
+	HBufC* key = CSharedBitmapObject::KeyLC(aFilename, aId, modtime);
+
+	// Calculation of the hash value is performed here so that it can 
+	// potentially be reused in both object lookup and object insert.
+	const TUint hash = iSharedBitmapObjectHashMap.Hash(*key);    
+
+	CSharedBitmapObject* bmpObj = iSharedBitmapObjectHashMap.Lookup(*key, hash);
+	
+	if (bmpObj)
+		{
+		// Bitmap already in memory
+		CleanupStack::PopAndDestroy(key);      // key will not be needed
+		User::LeaveIfError(bmpObj->Open());    // increase reference count
+		}
+	else
+		{
+		// Bitmap not in memory
+		CBitwiseBitmap* bmp = DoLoadBitmapLC(aFilename, aId, aFileOffset, aFile, aSessionHandle);
+		// bmp and key popped out of the clean-up stack by NewL
+		bmpObj = CSharedBitmapObject::NewL(*this, bmp, key, hash);
+		}
+
+	return bmpObj;
+	}
+
+TInt CFbTop::GetCleanBitmap(CBitmapObject*& aBmpObjPtr)
+	{
+	while (aBmpObjPtr->CleanBitmap() != NULL)
+		{
+		aBmpObjPtr = aBmpObjPtr->CleanBitmap();
+		}
+	if (aBmpObjPtr->IsInCompressionQueue())
+		return KErrInUse;
+	return KErrNone;
+	}
+
+CBitmapObject* CFbTop::FindBitmap(TInt aHandle)
+	{
+	TInt index = iBitmapObjectIndex.FindInOrder(aHandle, CBitmapObject::Compare);
+	if (index != KErrNotFound)
+		return iBitmapObjectIndex[index];
+	return NULL;
+	}
+
+TBool CFbTop::ValidFontHandle(TInt aHandle)
+	{
+	TInt limit=iFontCon->Count();
+	for(TInt count=0;count<limit;count++)
+		if(aHandle==(TInt)((*iFontCon)[count]))
+			return(ETrue);
+	return(EFalse);
+	}
+	
+TBool CFbTop::ValidBitmapFont(TInt aHandle)
+	{
+	TInt limit=iFontCon->Count();
+	for(TInt count=0;count<limit;count++)
+		{
+		CFontObject* fontObjPtr = reinterpret_cast<CFontObject*>((*iFontCon)[count]);
+		if(aHandle==(TInt)(fontObjPtr->iAddressPointer))
+			return(ETrue);
+		}
+	return(EFalse);
+	}
+
+CFontStore* CFbTop::FontStore() const
+	{
+	return(iFontStore);
+	}
+
+RHeap* CFbTop::Heap() const
+	{
+	return(iHeap);
+	}
+
+CChunkPile* CFbTop::Pile() const
+	{
+	return(iPile);
+	}
+
+TInt CFbTop::HeapBase() const
+	{
+	return(TInt(iChunk.Base()));
+	}
+
+void CFbTop::SetFontNameAliasL(const RMessage2& aMessage)
+	{
+	const TInt aliasNameLength = aMessage.Int1();
+	if (aliasNameLength <= 0)
+		return; // No alias name to set
+	
+	if(aliasNameLength * sizeof(TText) * 2 >= KMaxTInt)
+		{
+		aMessage.Panic(KFBSERVPanicCategory,KErrArgument);
+		return;
+		}
+		
+	HBufC* aliasName = HBufC::NewMaxLC(aliasNameLength);
+	TPtr aliasNamePtr(aliasName->Des());
+	aMessage.ReadL(0,aliasNamePtr);
+
+	const TInt aliasIndex = FindFontNameAlias(*aliasName);
+
+	const TInt fontNameLength = aMessage.Int3();
+
+	if (fontNameLength > 0)
+		{ // Set or change an alias
+		HBufC* fontName = HBufC::NewMaxLC(fontNameLength);
+		TPtr fontNamePtr(fontName->Des());
+		aMessage.ReadL(2,fontNamePtr);
+
+		if (aliasIndex != KErrNotFound)
+			{ // Change an existing alias
+			delete iFontNameAlias[aliasIndex + 1];
+			iFontNameAlias[aliasIndex + 1] = fontName;
+
+			CleanupStack::Pop(); // fontName
+			CleanupStack::PopAndDestroy(); // aliasName
+			}
+		else
+			{ // Set a new alias
+			User::LeaveIfError(iFontNameAlias.Append(aliasName));
+			TInt ret = iFontNameAlias.Append(fontName);
+			if (ret != KErrNone)
+				{
+				iFontNameAlias.Remove(iFontNameAlias.Count() - 1);
+				User::Leave(ret);
+				}
+
+			CleanupStack::Pop(); // fontName
+			CleanupStack::Pop(); // aliasName
+			}
+		}
+	else
+		{ // No fontName so delete the alias
+		CleanupStack::PopAndDestroy(); // aliasName
+		if (aliasIndex != KErrNotFound)
+			{
+			delete iFontNameAlias[aliasIndex];
+			iFontNameAlias.Remove(aliasIndex);
+			delete iFontNameAlias[aliasIndex];
+			iFontNameAlias.Remove(aliasIndex);
+			}
+		}
+	}
+
+TInt CFbTop::FindFontNameAlias(const TDesC& aAlias)
+	{
+	const TInt fontNameAliasCount = iFontNameAlias.Count();
+
+	for (TInt index = 0; index < fontNameAliasCount; index += 2)
+		{
+		if ((*iFontNameAlias[index]).CompareF(aAlias)==0)
+			{
+			return index;
+			}
+		}
+
+	return KErrNotFound;
+	}
+
+void CFbTop::SetDefaultLanguageForMetrics(const RMessage2& aMessage)
+	{
+	iDefaultLanguageForMetrics = static_cast<TLanguage>(aMessage.Int0());
+	}
+
+void CFbTop::CloseFileStores(TInt aSessionHandle)
+	{
+	iMBMCache->CloseFileStores(aSessionHandle);
+	}
+
+void CFbTop::SetSystemDefaultTypefaceName(const TDesC& aFontTypefaceName)
+	{
+	iSystemDefaultFontTypefaceName = aFontTypefaceName;
+	}
+
+TInt CFbTop::GetAllBitmapHandles(const RMessage2& aMessage) const
+	{
+	TPckgBuf<TInt> handleBuffer; // Use this buffer to store the bitmap handles to write to the message buffer
+	const TInt numBitmaps = iBitmapObjectIndex.Count();
+	TInt ret = KErrNone;
+	for (TInt count=0; count<numBitmaps; ++count)
+		{
+		handleBuffer() = iBitmapObjectIndex[count]->Handle();
+		ret = aMessage.Write(0, handleBuffer, KNumBytesPerBitmapHandle * count);
+		if (ret!=KErrNone)
+			break;
+		}	
+	return ret;
+	}
+
+void CFbTop::AddClientHelper(TFbClientHelper& aHelper)
+	{
+	iClientHelpers.AddLast(aHelper);
+	}
+
+void CFbTop::NotifyDirtyBitmap(CBitmapObject& aBmpObj, CFbClient* aClient)
+	{
+	TDblQueIter<TFbClientHelper> iterator(iClientHelpers);
+	TFbClientHelper* helper;
+	while ((helper = iterator++) != NULL)
+		{
+		if (aClient != &helper->iClient)
+			helper->iClient.NotifyDirtyBitmap(aBmpObj);
+		}
+	}
+
+TInt CFbTop::BitmapConUniqueID() const
+	{
+	return iBitmapCon->UniqueID();
+	}
+
+TInt CFbTop::FontConUniqueID() const
+	{
+	return iFontCon->UniqueID();
+	}