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);
}