public static bool ReadTables(FontParser parser, FontFace font) { int hmMetricCount = 0; int tableOffset = parser.TableOffset("OS/2"); if (tableOffset != 0) { // OS/2 table: OS2Tables.Load(parser, tableOffset, font); } tableOffset = parser.TableOffset("hhea"); if (tableOffset != 0) { // Hhea table (always after OS/2): HheaTables.Load(parser, tableOffset, font, out hmMetricCount); } // Handle meta if it's not been loaded yet: if (font.Ascender == 0f) { // Requires info from both HHEA and OS/2: parser.ApplyWindowsMetrics(font); } // General metadata - the name table: tableOffset = parser.TableOffset("name"); if (tableOffset != 0) { NameTables.Load(parser, tableOffset, font); } // Glyph data next! Glyph[] glyphs = null; int locaOffset = parser.TableOffset("loca"); tableOffset = parser.TableOffset("glyf"); if (tableOffset != 0 && locaOffset != 0) { bool shortVersion = (parser.IndexToLocFormat == 0); // Load a loca table (temporary): uint[] locaTable = LocaTables.Load(parser, locaOffset, parser.GlyphCount, shortVersion); // Load the glyph set: glyphs = GlyfTables.Load(parser, tableOffset, locaTable, font); HmtxTables.Load(parser, parser.TableOffset("hmtx"), font, glyphs, hmMetricCount); } else { tableOffset = parser.TableOffset("CFF "); if (tableOffset != 0) { int postOffset = parser.TableOffset("post"); if (postOffset != 0) { // Post table: int postGlyphCount; PostTables.Load(parser, postOffset, font, out postGlyphCount); if (parser.GlyphCount == 0 && postGlyphCount != -1) { parser.GlyphCount = postGlyphCount; } } // Load the CFF (PostScript glyph) table: glyphs = CffTables.Load(parser, tableOffset, font); } else { // Unrecognised/ bad font. return(false); } } if (glyphs != null && glyphs.Length > 0) { font.NotDefined = glyphs[0]; } // Kerning table next: tableOffset = parser.TableOffset("kern"); if (tableOffset != 0) { // Kerning table: KerningTables.Load(parser, tableOffset, font, glyphs); } else { // Try GPOS instead: tableOffset = parser.TableOffset("GPOS"); if (tableOffset != 0) { // GPOS table (also kerning data): GposTables.Load(parser, tableOffset, font, glyphs); } } // GSUB(stitution): tableOffset = parser.TableOffset("GSUB"); if (tableOffset != 0) { GsubTables.Load(parser, tableOffset, font); } // Finally, the character map: tableOffset = parser.TableOffset("cmap"); if (tableOffset != 0) { // Load the charmap: CharMapTables.Load(parser, tableOffset, font, glyphs); } if (Fonts.Preload) { font.AllGlyphsLoaded(); } return(true); }