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If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 #ifndef _SV_GCACHFTYP_HXX 29 #define _SV_GCACHFTYP_HXX 30 31 #include <glyphcache.hxx> 32 #include <rtl/textcvt.h> 33 34 #include <ft2build.h> 35 #include FT_FREETYPE_H 36 37 class FreetypeServerFont; 38 struct FT_GlyphRec_; 39 40 // ----------------------------------------------------------------------- 41 42 // FtFontFile has the responsibility that a font file is only mapped once. 43 // (#86621#) the old directly ft-managed solution caused it to be mapped 44 // in up to nTTC*nSizes*nOrientation*nSynthetic times 45 class FtFontFile 46 { 47 public: 48 static FtFontFile* FindFontFile( const ::rtl::OString& rNativeFileName ); 49 50 bool Map(); 51 void Unmap(); 52 53 const unsigned char* GetBuffer() const { return mpFileMap; } 54 int GetFileSize() const { return mnFileSize; } 55 const ::rtl::OString* GetFileName() const { return &maNativeFileName; } 56 int GetLangBoost() const { return mnLangBoost; } 57 58 private: 59 FtFontFile( const ::rtl::OString& rNativeFileName ); 60 61 const ::rtl::OString maNativeFileName; 62 const unsigned char* mpFileMap; 63 int mnFileSize; 64 int mnRefCount; 65 int mnLangBoost; 66 }; 67 68 // ----------------------------------------------------------------------- 69 70 // FtFontInfo corresponds to an unscaled font face 71 class FtFontInfo 72 { 73 public: 74 FtFontInfo( const ImplDevFontAttributes&, 75 const ::rtl::OString& rNativeFileName, 76 int nFaceNum, sal_IntPtr nFontId, int nSynthetic, 77 const ExtraKernInfo* ); 78 ~FtFontInfo(); 79 80 const unsigned char* GetTable( const char*, sal_uLong* pLength=0 ) const; 81 82 FT_FaceRec_* GetFaceFT(); 83 void ReleaseFaceFT( FT_FaceRec_* ); 84 85 const ::rtl::OString* GetFontFileName() const { return mpFontFile->GetFileName(); } 86 int GetFaceNum() const { return mnFaceNum; } 87 int GetSynthetic() const { return mnSynthetic; } 88 sal_IntPtr GetFontId() const { return mnFontId; } 89 bool IsSymbolFont() const { return maDevFontAttributes.IsSymbolFont(); } 90 const ImplFontAttributes& GetFontAttributes() const { return maDevFontAttributes; } 91 92 void AnnounceFont( ImplDevFontList* ); 93 94 int GetGlyphIndex( sal_UCS4 cChar ) const; 95 void CacheGlyphIndex( sal_UCS4 cChar, int nGI ) const; 96 97 bool GetFontCodeRanges( CmapResult& ) const; 98 const ImplFontCharMap* GetImplFontCharMap( void ); 99 100 bool HasExtraKerning() const; 101 int GetExtraKernPairs( ImplKernPairData** ) const; 102 int GetExtraGlyphKernValue( int nLeftGlyph, int nRightGlyph ) const; 103 104 private: 105 FT_FaceRec_* maFaceFT; 106 FtFontFile* mpFontFile; 107 const int mnFaceNum; 108 int mnRefCount; 109 const int mnSynthetic; 110 111 sal_IntPtr mnFontId; 112 ImplDevFontAttributes maDevFontAttributes; 113 114 const ImplFontCharMap* mpFontCharMap; 115 116 // cache unicode->glyphid mapping because looking it up is expensive 117 // TODO: change to hash_multimap when a use case requires a m:n mapping 118 typedef ::std::hash_map<int,int> Int2IntMap; 119 mutable Int2IntMap* mpChar2Glyph; 120 mutable Int2IntMap* mpGlyph2Char; 121 void InitHashes() const; 122 123 const ExtraKernInfo* mpExtraKernInfo; 124 }; 125 126 // these two inlines are very important for performance 127 128 inline int FtFontInfo::GetGlyphIndex( sal_UCS4 cChar ) const 129 { 130 if( !mpChar2Glyph ) 131 return -1; 132 Int2IntMap::const_iterator it = mpChar2Glyph->find( cChar ); 133 if( it == mpChar2Glyph->end() ) 134 return -1; 135 return it->second; 136 } 137 138 inline void FtFontInfo::CacheGlyphIndex( sal_UCS4 cChar, int nIndex ) const 139 { 140 if( !mpChar2Glyph ) 141 InitHashes(); 142 (*mpChar2Glyph)[ cChar ] = nIndex; 143 (*mpGlyph2Char)[ nIndex ] = cChar; 144 } 145 146 // ----------------------------------------------------------------------- 147 148 class FreetypeManager 149 { 150 public: 151 FreetypeManager(); 152 ~FreetypeManager(); 153 154 long AddFontDir( const String& rUrlName ); 155 void AddFontFile( const rtl::OString& rNormalizedName, 156 int nFaceNum, sal_IntPtr nFontId, const ImplDevFontAttributes&, 157 const ExtraKernInfo* ); 158 void AnnounceFonts( ImplDevFontList* ) const; 159 void ClearFontList(); 160 161 FreetypeServerFont* CreateFont( const ImplFontSelectData& ); 162 163 private: 164 typedef ::std::hash_map<sal_IntPtr,FtFontInfo*> FontList; 165 FontList maFontList; 166 167 sal_IntPtr mnMaxFontId; 168 sal_IntPtr mnNextFontId; 169 }; 170 171 // ----------------------------------------------------------------------- 172 173 class FreetypeServerFont : public ServerFont 174 { 175 public: 176 FreetypeServerFont( const ImplFontSelectData&, FtFontInfo* ); 177 virtual ~FreetypeServerFont(); 178 179 virtual const ::rtl::OString* GetFontFileName() const { return mpFontInfo->GetFontFileName(); } 180 virtual int GetFontFaceNum() const { return mpFontInfo->GetFaceNum(); } 181 virtual bool TestFont() const; 182 virtual void* GetFtFace() const; 183 virtual void SetFontOptions( const ImplFontOptions&); 184 virtual int GetLoadFlags() const { return (mnLoadFlags & ~FT_LOAD_IGNORE_TRANSFORM); } 185 virtual bool NeedsArtificialBold() const { return mbArtBold; } 186 virtual bool NeedsArtificialItalic() const { return mbArtItalic; } 187 188 virtual void FetchFontMetric( ImplFontMetricData&, long& rFactor ) const; 189 virtual const ImplFontCharMap* GetImplFontCharMap( void ) const; 190 191 virtual int GetGlyphIndex( sal_UCS4 ) const; 192 int GetRawGlyphIndex( sal_UCS4 ) const; 193 int FixupGlyphIndex( int nGlyphIndex, sal_UCS4 ) const; 194 195 virtual bool GetAntialiasAdvice( void ) const; 196 virtual bool GetGlyphBitmap1( int nGlyphIndex, RawBitmap& ) const; 197 virtual bool GetGlyphBitmap8( int nGlyphIndex, RawBitmap& ) const; 198 virtual bool GetGlyphOutline( int nGlyphIndex, ::basegfx::B2DPolyPolygon& ) const; 199 virtual int GetGlyphKernValue( int nLeftGlyph, int nRightGlyph ) const; 200 virtual sal_uLong GetKernPairs( ImplKernPairData** ) const; 201 202 const unsigned char* GetTable( const char* pName, sal_uLong* pLength ) 203 { return mpFontInfo->GetTable( pName, pLength ); } 204 int GetEmUnits() const; 205 const FT_Size_Metrics& GetMetricsFT() const { return maSizeFT->metrics; } 206 207 protected: 208 friend class GlyphCache; 209 210 int ApplyGlyphTransform( int nGlyphFlags, FT_GlyphRec_*, bool ) const; 211 virtual void InitGlyphData( int nGlyphIndex, GlyphData& ) const; 212 bool ApplyGSUB( const ImplFontSelectData& ); 213 virtual ServerFontLayoutEngine* GetLayoutEngine(); 214 215 private: 216 int mnWidth; 217 int mnPrioEmbedded; 218 int mnPrioAntiAlias; 219 int mnPrioAutoHint; 220 FtFontInfo* mpFontInfo; 221 FT_Int mnLoadFlags; 222 double mfStretch; 223 FT_FaceRec_* maFaceFT; 224 FT_SizeRec_* maSizeFT; 225 226 bool mbFaceOk; 227 bool mbArtItalic; 228 bool mbArtBold; 229 bool mbUseGamma; 230 231 typedef ::std::hash_map<int,int> GlyphSubstitution; 232 GlyphSubstitution maGlyphSubstitution; 233 rtl_UnicodeToTextConverter maRecodeConverter; 234 235 ServerFontLayoutEngine* mpLayoutEngine; 236 }; 237 238 // ----------------------------------------------------------------------- 239 240 class ImplFTSFontData : public ImplFontData 241 { 242 private: 243 FtFontInfo* mpFtFontInfo; 244 enum { IFTSFONT_MAGIC = 0x1F150A1C }; 245 246 public: 247 ImplFTSFontData( FtFontInfo*, const ImplDevFontAttributes& ); 248 249 FtFontInfo* GetFtFontInfo() const { return mpFtFontInfo; } 250 251 virtual ImplFontEntry* CreateFontInstance( ImplFontSelectData& ) const; 252 virtual ImplFontData* Clone() const { return new ImplFTSFontData( *this ); } 253 virtual sal_IntPtr GetFontId() const { return mpFtFontInfo->GetFontId(); } 254 255 static bool CheckFontData( const ImplFontData& r ) { return r.CheckMagic( IFTSFONT_MAGIC ); } 256 }; 257 258 // ----------------------------------------------------------------------- 259 260 #endif // _SV_GCACHFTYP_HXX 261