private static TrueTypeNameRecord GetTrueTypeNameRecord(NameRecordBuilder nameRecord, TrueTypeDataBytes data, uint offset)
{
try
{
var encoding = OtherEncodings.Iso88591;
switch (nameRecord.PlatformId)
{
case TrueTypePlatformIdentifier.Windows:
{
var platformEncoding = (TrueTypeWindowsEncodingIdentifier)nameRecord.PlatformEncodingId;
if (platformEncoding == TrueTypeWindowsEncodingIdentifier.Symbol ||
platformEncoding == TrueTypeWindowsEncodingIdentifier.UnicodeBmp)
{
encoding = Encoding.BigEndianUnicode;
}
break;
}
case TrueTypePlatformIdentifier.Unicode:
{
encoding = Encoding.BigEndianUnicode;
break;
}
case TrueTypePlatformIdentifier.Iso:
{
switch (nameRecord.PlatformEncodingId)
{
case 0:
encoding = Encoding.GetEncoding("US-ASCII");
break;
case 1:
encoding = Encoding.GetEncoding("ISO-10646-UCS-2");
break;
}
break;
}
}
var position = offset + nameRecord.Offset;
if (position >= data.Length)
{
return(null);
}
data.Seek(position);
if (data.TryReadString(nameRecord.Length, encoding, out var str))
{
return(nameRecord.ToNameRecord(str));
}
// Damaged font
return(null);
}
catch
{
return(null);
}
}
