private byte[] BuildPostTable()
{
PostScriptTable post = ttf.PostScript;
if (post == null || keepTables != null && !keepTables.Contains("post", StringComparer.Ordinal))
{
return(null);
}
using (var bos = new MemoryStream())
using (var output = new BinaryWriter(bos))
{
WriteFixed(output, 2.0); // version
WriteFixed(output, post.ItalicAngle);
WriteSInt16(output, post.UnderlinePosition);
WriteSInt16(output, post.UnderlineThickness);
WriteUint32(output, post.IsFixedPitch);
WriteUint32(output, post.MinMemType42);
WriteUint32(output, post.MaxMemType42);
WriteUint32(output, post.MinMemType1);
WriteUint32(output, post.MaxMemType1);
// version 2.0
// numberOfGlyphs
WriteUint16(output, glyphIds.Count);
// glyphNameIndex[numGlyphs]
ConcurrentDictionary <string, int> names = new ConcurrentDictionary <string, int>(StringComparer.Ordinal);
foreach (int gid in glyphIds)
{
string name = post.GetName(gid);
if (WGL4Names.MAC_GLYPH_NAMES_INDICES.TryGetValue(name, out int macId))
{
// the name input implicit, as it's from MacRoman
WriteUint16(output, macId);
}
else
{
// the name will be written explicitly
int ordinal = names.GetOrAdd(name, (p) => names.Count);
WriteUint16(output, 258 + ordinal);
}
}
// names[numberNewGlyphs]
foreach (string name in names.Keys)
{
byte[] buf = Charset.ASCII.GetBytes(name);
WriteUint8(output, buf.Length);
output.Write(buf);
}
output.Flush();
return(bos.ToArray());
}
}
