/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you under the Apache * License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.apache.org/licenses/LICENSE-2.0 . */ #ifndef _SV_GLYPHCACHE_HXX #define _SV_GLYPHCACHE_HXX #include class GlyphCache; class GlyphMetric; class GlyphData; class ServerFont; class GlyphCachePeer; class ServerFontLayoutEngine; class ServerFontLayout; class ExtraKernInfo; struct ImplKernPairData; class ImplFontOptions; #include #include #include #include namespace basegfx { class B2DPolyPolygon; } class RawBitmap; #include #include class ServerFontLayout; #include #include #if ENABLE_GRAPHITE class GraphiteFaceWrapper; #endif #include #include FT_FREETYPE_H #include FT_GLYPH_H namespace vcl { struct FontCapabilities; } // ======================================================================= class VCL_DLLPUBLIC GlyphCache { public: explicit GlyphCache( GlyphCachePeer& ); /*virtual*/ ~GlyphCache(); static GlyphCache& GetInstance(); void AddFontFile( const OString& rNormalizedName, int nFaceNum, sal_IntPtr nFontId, const ImplDevFontAttributes&, const ExtraKernInfo* = NULL ); void AnnounceFonts( ImplDevFontList* ) const; ServerFont* CacheFont( const FontSelectPattern& ); void UncacheFont( ServerFont& ); void ClearFontCache(); void InvalidateAllGlyphs(); protected: GlyphCachePeer& mrPeer; private: friend class ServerFont; // used by ServerFont class only void AddedGlyph( ServerFont&, GlyphData& ); void RemovingGlyph( ServerFont&, GlyphData&, int nGlyphIndex ); void UsingGlyph( ServerFont&, GlyphData& ); void GrowNotify(); private: void GarbageCollect(); // the GlyphCache's FontList matches a font request to a serverfont instance // the FontList key's mpFontData member is reinterpreted as integer font id struct IFSD_Equal{ bool operator()( const FontSelectPattern&, const FontSelectPattern& ) const; }; struct IFSD_Hash{ size_t operator()( const FontSelectPattern& ) const; }; typedef ::boost::unordered_map FontList; FontList maFontList; sal_uLong mnMaxSize; // max overall cache size in bytes mutable sal_uLong mnBytesUsed; mutable long mnLruIndex; mutable int mnGlyphCount; ServerFont* mpCurrentGCFont; class FreetypeManager* mpFtManager; }; // ======================================================================= class GlyphMetric { public: Point GetOffset() const { return maOffset; } Point GetDelta() const { return maDelta; } Size GetSize() const { return maSize; } long GetCharWidth() const { return mnAdvanceWidth; } protected: friend class GlyphData; void SetOffset( int nX, int nY ) { maOffset = Point( nX, nY); } void SetDelta( int nX, int nY ) { maDelta = Point( nX, nY); } void SetSize( const Size& s ) { maSize = s; } void SetCharWidth( long nW ) { mnAdvanceWidth = nW; } private: long mnAdvanceWidth; Point maDelta; Point maOffset; Size maSize; }; // ----------------------------------------------------------------------- // the glyph specific data needed by a GlyphCachePeer is usually trivial, // not attaching it to the corresponding GlyphData would be overkill struct ExtGlyphData { int meInfo; void* mpData; ExtGlyphData() : meInfo(0), mpData(NULL) {} }; // ----------------------------------------------------------------------- class GlyphData { public: const GlyphMetric& GetMetric() const { return maMetric; } Size GetSize() const { return maMetric.GetSize(); } void SetSize( const Size& s) { maMetric.SetSize( s ); } void SetOffset( int nX, int nY ) { maMetric.SetOffset( nX, nY ); } void SetDelta( int nX, int nY ) { maMetric.SetDelta( nX, nY ); } void SetCharWidth( long nW ) { maMetric.SetCharWidth( nW ); } void SetLruValue( int n ) const { mnLruValue = n; } long GetLruValue() const { return mnLruValue;} ExtGlyphData& ExtDataRef() { return maExtData; } const ExtGlyphData& ExtDataRef() const { return maExtData; } private: GlyphMetric maMetric; ExtGlyphData maExtData; // used by GlyphCache for cache LRU algorithm mutable long mnLruValue; }; // ======================================================================= class FtFontInfo; class VCL_DLLPUBLIC ServerFont { public: ServerFont( const FontSelectPattern&, FtFontInfo* ); virtual ~ServerFont(); const OString* GetFontFileName() const; bool TestFont() const; FT_Face GetFtFace() const; int GetLoadFlags() const { return (mnLoadFlags & ~FT_LOAD_IGNORE_TRANSFORM); } void SetFontOptions( boost::shared_ptr ); boost::shared_ptr GetFontOptions() const; bool NeedsArtificialBold() const { return mbArtBold; } bool NeedsArtificialItalic() const { return mbArtItalic; } const FontSelectPattern& GetFontSelData() const { return maFontSelData; } void FetchFontMetric( ImplFontMetricData&, long& rFactor ) const; sal_uLong GetKernPairs( ImplKernPairData** ) const; const unsigned char* GetTable( const char* pName, sal_uLong* pLength ); int GetEmUnits() const; const FT_Size_Metrics& GetMetricsFT() const { return maSizeFT->metrics; } const ImplFontCharMap* GetImplFontCharMap() const; bool GetFontCapabilities(vcl::FontCapabilities &) const; GlyphData& GetGlyphData( int nGlyphIndex ); const GlyphMetric& GetGlyphMetric( int nGlyphIndex ) { return GetGlyphData( nGlyphIndex ).GetMetric(); } #if ENABLE_GRAPHITE virtual GraphiteFaceWrapper* GetGraphiteFace() const; #endif int GetGlyphIndex( sal_UCS4 ) const; int GetRawGlyphIndex( sal_UCS4 ) const; int FixupGlyphIndex( int nGlyphIndex, sal_UCS4 ) const; bool GetGlyphOutline( int nGlyphIndex, ::basegfx::B2DPolyPolygon& ) const; bool GetAntialiasAdvice( void ) const; bool GetGlyphBitmap1( int nGlyphIndex, RawBitmap& ) const; bool GetGlyphBitmap8( int nGlyphIndex, RawBitmap& ) const; void SetExtended( int nInfo, void* ppVoid ); int GetExtInfo() { return mnExtInfo; } void* GetExtPointer() { return mpExtData; } private: friend class GlyphCache; friend class ServerFontLayout; friend class ImplServerFontEntry; friend class X11SalGraphics; void AddRef() const { ++mnRefCount; } long GetRefCount() const { return mnRefCount; } long Release() const; sal_uLong GetByteCount() const { return mnBytesUsed; } void InitGlyphData( int nGlyphIndex, GlyphData& ) const; void GarbageCollect( long ); void ReleaseFromGarbageCollect(); int ApplyGlyphTransform( int nGlyphFlags, FT_GlyphRec_*, bool ) const; bool ApplyGSUB( const FontSelectPattern& ); ServerFontLayoutEngine* GetLayoutEngine(); typedef ::boost::unordered_map GlyphList; mutable GlyphList maGlyphList; const FontSelectPattern maFontSelData; // info for GlyphcachePeer int mnExtInfo; void* mpExtData; // used by GlyphCache for cache LRU algorithm mutable long mnRefCount; mutable sal_uLong mnBytesUsed; ServerFont* mpPrevGCFont; ServerFont* mpNextGCFont; // 16.16 fixed point values used for a rotated font long mnCos; long mnSin; int mnZWJ; int mnZWNJ; bool mbCollectedZW; int mnWidth; int mnPrioEmbedded; int mnPrioAntiAlias; int mnPrioAutoHint; FtFontInfo* mpFontInfo; FT_Int mnLoadFlags; double mfStretch; FT_FaceRec_* maFaceFT; FT_SizeRec_* maSizeFT; boost::shared_ptr mpFontOptions; bool mbFaceOk; bool mbArtItalic; bool mbArtBold; bool mbUseGamma; typedef ::boost::unordered_map GlyphSubstitution; GlyphSubstitution maGlyphSubstitution; rtl_UnicodeToTextConverter maRecodeConverter; ServerFontLayoutEngine* mpLayoutEngine; }; // ======================================================================= // a class for cache entries for physical font instances that are based on serverfonts class VCL_DLLPUBLIC ImplServerFontEntry : public ImplFontEntry { private: ServerFont* mpServerFont; boost::shared_ptr mpFontOptions; bool mbGotFontOptions; public: ImplServerFontEntry( FontSelectPattern& ); virtual ~ImplServerFontEntry(); void SetServerFont(ServerFont* p); void HandleFontOptions(); }; // ======================================================================= class VCL_DLLPUBLIC ServerFontLayout : public GenericSalLayout { private: ServerFont& mrServerFont; // enforce proper copy semantic SAL_DLLPRIVATE ServerFontLayout( const ServerFontLayout& ); SAL_DLLPRIVATE ServerFontLayout& operator=( const ServerFontLayout& ); public: ServerFontLayout( ServerFont& ); virtual bool LayoutText( ImplLayoutArgs& ); virtual void AdjustLayout( ImplLayoutArgs& ); virtual void ApplyDXArray( ImplLayoutArgs& ); virtual void DrawText( SalGraphics& ) const; ServerFont& GetServerFont() const { return mrServerFont; } }; // ======================================================================= class ServerFontLayoutEngine { public: virtual ~ServerFontLayoutEngine() {} virtual bool layout(ServerFontLayout&, ImplLayoutArgs&) = 0; }; // ======================================================================= class GlyphCachePeer { protected: GlyphCachePeer() : mnBytesUsed(0) {} virtual ~GlyphCachePeer() {} public: sal_Int32 GetByteCount() const { return mnBytesUsed; } virtual void RemovingFont( ServerFont& ) {} virtual void RemovingGlyph( ServerFont&, GlyphData&, int ) {} protected: sal_Int32 mnBytesUsed; }; // ======================================================================= class VCL_DLLPUBLIC RawBitmap { public: RawBitmap(); ~RawBitmap(); bool Rotate( int nAngle ); public: unsigned char* mpBits; sal_uLong mnAllocated; sal_uLong mnWidth; sal_uLong mnHeight; sal_uLong mnScanlineSize; sal_uLong mnBitCount; int mnXOffset; int mnYOffset; }; // ======================================================================= inline void ServerFont::SetExtended( int nInfo, void* pVoid ) { mnExtInfo = nInfo; mpExtData = pVoid; } // ======================================================================= // ExtraKernInfo allows an on-demand query of extra kerning info #i29881# // The kerning values have to be scaled to match the font size before use class VCL_DLLPUBLIC ExtraKernInfo { public: ExtraKernInfo( sal_IntPtr nFontId ); virtual ~ExtraKernInfo() {} int GetUnscaledKernPairs( ImplKernPairData** ) const; protected: mutable bool mbInitialized; virtual void Initialize() const = 0; protected: sal_IntPtr mnFontId; // container to map a unicode pair to an unscaled kerning value struct PairEqual{ int operator()(const ImplKernPairData& rA, const ImplKernPairData& rB) const { return (rA.mnChar1 == rB.mnChar1) && (rA.mnChar2 == rB.mnChar2); } }; struct PairHash{ int operator()(const ImplKernPairData& rA) const { return (rA.mnChar1) * 256 ^ rA.mnChar2; } }; typedef boost::unordered_set< ImplKernPairData, PairHash, PairEqual > UnicodeKernPairs; mutable UnicodeKernPairs maUnicodeKernPairs; }; // ======================================================================= #endif // _SV_GLYPHCACHE_HXX /* vim:set shiftwidth=4 softtabstop=4 expandtab: */