sl@0: // Copyright (c) 1995-2010 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #ifndef SERVER_H
sl@0: #define SERVER_H
sl@0: 
sl@0: #include <e32base.h>
sl@0: #include <f32file.h>
sl@0: #include <fbs.h>
sl@0: #include <sgresource/sgimage.h>
sl@0: #include "UTILS.H"
sl@0: #include "FBSMBMC.H"
sl@0: #include "FbsMessage.H"
sl@0: #include "glyphatlas.h"
sl@0: 
sl@0: class CFbTop;
sl@0: class CFbsBackgroundCompression;
sl@0: class CFbsBackgroundCompressionQueueElement;
sl@0: class TOpenFontGlyphData;
sl@0: 
sl@0: 
sl@0: NONSHARABLE_CLASS(CFontObject): public CObject
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: 	{
sl@0: public:
sl@0: 	CFontObject(CFontStore* aFontStore, CGlyphAtlas* aGlyphAtlas);
sl@0: 	~CFontObject();
sl@0: public:
sl@0: 	CBitmapFont* iAddressPointer;
sl@0: 	CFontStore* iFontStore;
sl@0: 	TInt iHeightInTwips;
sl@0: 	CGlyphAtlas* iGlyphAtlas;
sl@0: 	};
sl@0: 
sl@0: NONSHARABLE_CLASS(CBitmapObject): public CObject
sl@0: /**
sl@0: Provides reference counting facilities for bitmaps managed by CFbTop.
sl@0: @internalComponent
sl@0: */
sl@0: 	{
sl@0: 	friend class CFbsBackgroundCompression;
sl@0: 	friend class CFbsBackgroundCompressionQueueElement;
sl@0: protected:
sl@0: 	CBitmapObject(CFbTop& aFbTop, CBitwiseBitmap* aBmp);
sl@0: 	void ConstructL(TBool aReplacement);
sl@0: public:
sl@0: 	static CBitmapObject* NewL(CFbTop& aFbTop, CBitwiseBitmap* aBmp, TBool aReplacement);
sl@0: 	~CBitmapObject();
sl@0: 	inline CBitwiseBitmap* Address() const;
sl@0: 	inline TInt Handle() const;
sl@0: 	inline CBitmapObject* CleanBitmap() const;
sl@0: 	inline TBool IsInCompressionQueue() const;
sl@0: 	void SetCleanBitmap(CBitmapObject* aNewBmpObj);
sl@0: 	virtual void Close();
sl@0: 	static TInt Compare(const CBitmapObject& aBmpObj1, const CBitmapObject& aBmpObj2);
sl@0: 	static TInt Compare(const TInt* aHandle, const CBitmapObject& aBmpObj);
sl@0: protected:
sl@0: 	CFbTop* iFbTop;
sl@0: private:
sl@0: 	CBitwiseBitmap* iAddressPointer;
sl@0: 	TInt iHandle;
sl@0: 	CBitmapObject* iCleanBitmap;
sl@0: 	CFbsBackgroundCompressionQueueElement* iCompressionQueueElement;
sl@0: 	};
sl@0: 
sl@0: NONSHARABLE_CLASS(CSharedBitmapObject): public CBitmapObject
sl@0: /**
sl@0: Provides reference counting facilities for shared bitmaps managed by CFbTop.
sl@0: Shared bitmaps are only loaded once.  They are uniquely identified by the
sl@0: combination of the filename, bitmap ID and last modified time of the file.
sl@0: @internalComponent
sl@0: */
sl@0: 	{
sl@0: friend class CHashMap;
sl@0: private:
sl@0: 	CSharedBitmapObject(CFbTop& aFbTop, CBitwiseBitmap* aBmp, TDesC* aKey);
sl@0: 	void ConstructL(TUint aHash);
sl@0: public:
sl@0: 	static CSharedBitmapObject* NewL(CFbTop& aFbTop, CBitwiseBitmap* aBmp, TDesC* aKey, TUint aHash);
sl@0: 	~CSharedBitmapObject();
sl@0: 	static HBufC* KeyLC(const TDesC& aFileName, TInt aId, const TTime& aModTime);
sl@0: private:
sl@0: 	TDesC* iKey;
sl@0: 	mutable CSharedBitmapObject* iNext;    // Next object in a linked list
sl@0: 	};
sl@0: 
sl@0: NONSHARABLE_CLASS(CFontBitmapServer): public CPolicyServer
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: 	{
sl@0: public:
sl@0: 	CFontBitmapServer();
sl@0: 	~CFontBitmapServer();
sl@0: 	static CFontBitmapServer* NewL();
sl@0: 	CSession2* NewSessionL(const TVersion& aVersion, const RMessage2& aMessage) const;
sl@0: 	TInt Init();
sl@0: #ifdef _DEBUG
sl@0: 	void ProcMessage(const RMessage2& aMessage, TInt aSession, TInt& aRet);
sl@0: #else	
sl@0: 	void ProcMessage(const RMessage2& aMessage, TInt aSession);
sl@0: #endif	
sl@0: 	CFbTop* TopLevelStore();
sl@0: 
sl@0: private:
sl@0: 	void ConstructL();
sl@0: 	void GetHeapSizesL(const RMessage2& aMessage);
sl@0: 	TInt HandleMesgTypefaceSupport(const RMessage2& aMessage, TBool& aClientPanicRequired);
sl@0: 	TInt HandleMesgFontHeight(const RMessage2& aMessage, TBool aInTwips);
sl@0: 
sl@0: protected:
sl@0: 	TUint iConnectionId;
sl@0: 	CFbTop* iTopLevelStore;
sl@0: 	};
sl@0: 
sl@0: class TFontFileIndex
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: 	{
sl@0: public:
sl@0: 	TUid iUid;
sl@0: 	TInt iAccessCount;
sl@0: 	};
sl@0: 
sl@0: 
sl@0: class CFbClient;
sl@0: 
sl@0: NONSHARABLE_CLASS(TFbClientHelper): public TDblQueLink
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: 	{
sl@0: public:
sl@0: 	inline TFbClientHelper(CFbClient& aClient);
sl@0: 
sl@0: public:
sl@0: 	CFbClient& iClient;
sl@0: 	RMessagePtr2 iMessage;
sl@0: 	TBool iDirty;
sl@0: 	};
sl@0: 
sl@0: NONSHARABLE_CLASS(CFbClient): public CSession2
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: 	{
sl@0: public:
sl@0: 	static CFbClient* NewL(RHeap* aHeap);
sl@0: 	~CFbClient();
sl@0: 	void Init(TUint aConnectionHandle);
sl@0: 	void CreateL();
sl@0: 	CFontBitmapServer* FontBitmapServer();
sl@0: 	CFbTop* TopLevelStore();
sl@0: 	void CopyFontInfo(CFontObject* aFontObjPtr,TInt aHandle,TFontInfo& aFontInfo);
sl@0: 	void ServiceL(const RMessage2& aMessage);
sl@0: 	void ProcFontMessage(const RMessage2& aMessage);
sl@0: 	void ProcBitmapMessage(const RMessage2& aMessage);
sl@0: 	void NotifyDirtyBitmap(CBitmapObject& aBmpObj);
sl@0: 	void AddFontFileIndexL(TUid aId);
sl@0: 	void RemoveFontFileIndex(TUid aId);
sl@0: 	void Disconnect(const RMessage2 &aMessage);
sl@0: #ifdef _DEBUG
sl@0: 	void ProcMemMessage (const RMessage2& aMessage);
sl@0: 	void ProcAtlasMessage (const RMessage2& aMessage);
sl@0: #endif	
sl@0: private:
sl@0: 	void ConstructL();
sl@0: 	CFbClient(RHeap* aHeap);
sl@0: 	TInt HandleMesgFontDuplicate(const RMessage2& aMessage, TBool& aPanicRequired);
sl@0: 	TInt HandleMesgGetNearestFont(const RMessage2& aMessage, TBool& aPanicRequired);
sl@0: 	TInt HandleMesgGetFontById(const RMessage2& aMessage, TBool& aPanicRequired);
sl@0: 	TInt CopyFontInfoIntoReturnMessage(const RMessage2& aMessage, TBool& aPanicRequired, CFontObject* aFontObj, TInt iWritePosition);
sl@0: 	TInt HandleMesgAddOrInstallFontFile(const RMessage2& aMessage, TBool& aPanicRequired);
sl@0: 	TInt HandleMesgRemoveFontFile(const RMessage2& aMessage);
sl@0: 	TInt HandleMesgRasterize(const RMessage2& aMessage, TBool& aPanicRequired);
sl@0: 	TInt HandleMesgFaceAttrib(const RMessage2& aMessage, TBool& aPanicRequired);
sl@0: 	TInt HandleMesgHasCharacter(const RMessage2& aMessage, TBool& aPanicRequired);
sl@0: 	TInt HandleMesgShapeText(const RMessage2& aMessage, TBool& aPanicRequired);
sl@0: 	TInt HandleMesgShapeDelete(const RMessage2& aMessage, TBool& aPanicRequired);
sl@0: 	TInt HandleMesgGetFontTable(const RMessage2& aMessage, TBool& aPanicRequired);
sl@0: 	TInt HandleMesgGetGlyphOutline(const RMessage2& aMessage, TBool& aPanicRequired);
sl@0: 	TInt HandleMesgReleaseGlyphOutline(const RMessage2& aMessage, TBool& aPanicRequired);
sl@0: 	TInt HandleMesgReleaseFontTable(const RMessage2& aMessage, TBool& aPanicRequired);
sl@0: 	TInt HandleMesgGetGlyphs(const RMessage2& aMessage, TBool& aPanicRequired);
sl@0: 	TInt HandleMesgGetGlyphMetrics(const RMessage2& aMessage, TBool& aPanicRequired);
sl@0: 	TInt HandleMesgOogmStatus(const RMessage2& aMessage);
sl@0: 	void HandleMesgGlyphCacheMetrics(const RMessage2& aMessage);
sl@0: 
sl@0: protected:
sl@0: 	TUint iConnectionHandle;
sl@0: 	CObjectIx* iIx;
sl@0: 	TInt iResourceCount;
sl@0: 	CArrayFixFlat<TFontFileIndex>* iFontFileIndex;
sl@0: 	RHeap* iHeap;							// the heap containing iOpenFontGlyphData
sl@0: 	TOpenFontGlyphData* iOpenFontGlyphData;	// the metrics and bitmap, in shared memory, of the last character rasterized
sl@0: 	TInt iSessionHandle;					// used to identify client-specific glyph caches for the new font system
sl@0: 	TFbClientHelper* iHelper;				// used to notify client of any bitmap becoming dirty
sl@0: 
sl@0: private:
sl@0: 	RBuf16 iTextToShape;						// buffer used to hold incoming text that needs shaping
sl@0: 	RArray<RSgImage> iGlyphImagesInTransit;	// last glyph images retrieved from glyph atlas
sl@0: #ifdef _DEBUG	
sl@0: 	TBool iOwnHeapCheck; //for the process heap - current state
sl@0: 	TBool iHeapCheck;	//for iHeap - current state
sl@0: 	TBool iOwnHeapCheckFlip; //for the process heap - to switch the current state
sl@0: 	TBool iHeapCheckFlip;	//for iHeap - used to switch the current state
sl@0: 	TInt iOwnHeapFailNumber; //the number for the memory fail to be set to. -1: don't set.
sl@0: 	TInt iSharedHeapFailNumber; //the number for the memory fail to be set to. -1 don't set
sl@0: 	TInt iRet;
sl@0: 	TInt iFontDuplicateToFail; //when this is set calls to HandleMesgFontDuplicate() fail for the class.
sl@0: #endif	
sl@0: 	};
sl@0: 
sl@0: NONSHARABLE_CLASS(CFbActiveScheduler): public CActiveScheduler
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: 	{
sl@0: public:
sl@0: 	CFbActiveScheduler();
sl@0: 	virtual void Error(TInt anError) const;
sl@0: 	};
sl@0: 
sl@0: class CFontStore;
sl@0: 
sl@0: NONSHARABLE_CLASS(CHashMap): public CBase
sl@0: /**
sl@0: A HashMap data structure for storing pointers to CSharedBitmapObjects.
sl@0: Provides fast insert/lookup/removal based on a key.
sl@0: @internalComponent
sl@0: */
sl@0: 	{
sl@0: public:
sl@0: 	CHashMap();
sl@0: 	~CHashMap();
sl@0: 
sl@0: 	void Insert(CSharedBitmapObject& aBmpObj, TUint aHash);
sl@0: 	CSharedBitmapObject* Lookup(const TDesC& aKey, TUint aHash) const;
sl@0: 	TInt Remove(const CSharedBitmapObject& aBmpObj);
sl@0: 	static TUint Hash(const TDesC16& aKey);
sl@0: 
sl@0: private:
sl@0: 	CSharedBitmapObject* iHashTable[1<<KFBSERVSharedBitmapHashTableSizeInBits]; // Array of pointers to singularly linked lists.  Linked list elements are CSharedBitmapObjects.
sl@0: 	TInt iTableSize;
sl@0: 	TInt iMask;
sl@0: 	};
sl@0: 
sl@0: 
sl@0: IMPORT_C extern const TInt KFbServSharedHeapMaxSize;
sl@0: IMPORT_C extern const TInt KFbServGlyphAtlasCacheLimit;
sl@0: 
sl@0: 
sl@0: NONSHARABLE_CLASS(CFbTop): public CBase
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: 	{
sl@0: 	friend class CFontBitmapServer;
sl@0: 	friend class CBitmapObject;
sl@0: 	friend class CSharedBitmapObject;
sl@0: public:
sl@0: 	~CFbTop();
sl@0: 	static CFbTop* NewL();
sl@0: 	TInt GetNearestFont(CFontObject*& aFontObjPtr, TFbsMessage aMessage, const TFontSpec& aFontSpec, TInt aMaxHeight = 0);
sl@0: 	TInt GetFontById(CFontObject*& aFontObjPtr,TUid aUid,const TAlgStyle& aAlgStyle);
sl@0: 	CBitmapObject* CreateBitmapL(const TSize& aSize, TDisplayMode aDispMode, TUid aUid, TBool aReplacement, TInt aDataSize = 0);
sl@0: 	CBitmapObject* LoadBitmapL(const TDesC& aFilename, TInt32 aId, TUint aFileOffset,RFile* aFile, TInt aSessionHandle);
sl@0: 	CSharedBitmapObject* ShareBitmapL(TDes& aFilename, TInt32 aId, TUint aFileOffset,RFile* aFile, TInt aSessionHandle);
sl@0: 	TInt GetCleanBitmap(CBitmapObject*& aBmpObjPtr);
sl@0: 	CBitmapObject* FindBitmap(TInt aHandle);
sl@0: 	TBool ValidFontHandle(TInt aHandle);
sl@0: 	CFontStore* FontStore() const;
sl@0: 	RHeap* Heap() const;
sl@0: 	CChunkPile* Pile() const;
sl@0: 	TInt HeapBase() const;
sl@0: 	void SetFontNameAliasL(const RMessage2& aMessage);
sl@0: 	void SetDefaultLanguageForMetrics(const RMessage2& aMessage);
sl@0: 	inline CFbsBackgroundCompression* BackgroundCompression() const;
sl@0: 	void CloseFileStores(TInt aSessionHandle);
sl@0: 	void SetSystemDefaultTypefaceName(const TDesC& aFontTypefaceName);
sl@0: 	TInt GetAllBitmapHandles(const RMessage2& aMessage) const;
sl@0: 	inline RFs& FileSession();
sl@0: 	void AddClientHelper(TFbClientHelper& aHelper);
sl@0: 	void NotifyDirtyBitmap(CBitmapObject& aBmpObj, CFbClient* aClient);
sl@0: 	TInt BitmapConUniqueID() const;
sl@0: 	TInt FontConUniqueID() const;
sl@0: 	CGlyphAtlas* GlyphAtlas() const;
sl@0: private:
sl@0: 	CFbTop();
sl@0: 	void ConstructL();
sl@0: 	CBitwiseBitmap* DoLoadBitmapLC(const TDesC& aFilename, TInt32 aId, TUint aFileOffset, RFile* aFile, TInt aSessionHandle);
sl@0: 	void LoadOpenFontLibraries();
sl@0: 	void SafeInstallOfRasterizerL(TUid aInterfaceImplUid);
sl@0: 	TInt FindFontNameAlias(const TDesC& aAlias);
sl@0: 	void LoadShaperFactories();
sl@0: 	void SafeInstallOfShaperFactoryL(TUid aInterfaceImplUid);
sl@0: 	TInt GetFontObjectFromFont(CFontObject*& aFontObjPtr, CFont* aFont);
sl@0: 	TInt GetNearestNonAliasedFont(CFont*& aFont, TFbsMessage aMessage, const TFontSpec&	aFontSpec, TInt	aMaxHeight);
sl@0: private:
sl@0: 	RFs iFilesys;
sl@0: 	CFontStore* iFontStore;
sl@0: 	CObjectCon* iBitmapCon;
sl@0: 	CObjectCon* iFontCon;
sl@0: 	CObjectConIx* iConIx;
sl@0: 	RHeap* iHeap;
sl@0: 	RChunk iChunk;
sl@0: 	RChunk iLargeBitmapChunk;
sl@0: 	RMutex iDebugMutex; // used only in builds with SYMBIAN_DEBUG_FBS_LOCKHEAP defined
sl@0: 	CChunkPile* iPile;
sl@0: 	RPointerArray<HBufC> iFontNameAlias;
sl@0: 	RPointerArray<CBitmapObject> iBitmapObjectIndex;
sl@0: 	CHashMap iSharedBitmapObjectHashMap;
sl@0: 	CFbTopStreamIdCache* iMBMCache;
sl@0: 	TLanguage iDefaultLanguageForMetrics;
sl@0: 	CFbsBackgroundCompression* iBackgroundCompression;
sl@0: 	TBuf<KMaxTypefaceNameLength> iSystemDefaultFontTypefaceName;
sl@0: 	TDblQue<TFbClientHelper> iClientHelpers;
sl@0: 	TInt64 iNextAvailableSerialNumber;
sl@0: 	CGlyphAtlas* iGlyphAtlas;
sl@0: 	};
sl@0: 
sl@0: inline CBitwiseBitmap* CBitmapObject::Address() const
sl@0: 	{
sl@0: 	return iAddressPointer;
sl@0: 	}
sl@0: 
sl@0: inline TInt CBitmapObject::Handle() const
sl@0: 	{
sl@0: 	return iHandle;
sl@0: 	}
sl@0: 
sl@0: inline CBitmapObject* CBitmapObject::CleanBitmap() const
sl@0: 	{
sl@0: 	return iCleanBitmap;
sl@0: 	}
sl@0: 
sl@0: inline TBool CBitmapObject::IsInCompressionQueue() const
sl@0: 	{
sl@0: 	return iCompressionQueueElement != NULL;
sl@0: 	}
sl@0: 
sl@0: inline TFbClientHelper::TFbClientHelper(CFbClient& aClient)
sl@0: 	: iClient(aClient), iDirty(EFalse)
sl@0: 	{}
sl@0: 
sl@0: inline CFbsBackgroundCompression* CFbTop::BackgroundCompression() const
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iBackgroundCompression != NULL, User::Invariant());
sl@0: 	return iBackgroundCompression;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: It returns the file session handle.
sl@0: 
sl@0: @internalComponent
sl@0: */
sl@0: inline RFs& CFbTop::FileSession()
sl@0: 	{
sl@0: 	return iFilesys;
sl@0: 	}
sl@0: 
sl@0: #endif // SERVER_H
sl@0: