> > So are you suggesting that `sfwoff2.c' directly output the total
> > number of faces and named instances (if the index is < 0) and exit
> > with error so that FT_Open_Face does not try to read and output this
> > data again?
>
> In case this makes life simpler, please do it! The alternative
> So are you suggesting that `sfwoff2.c' directly output the total
> number of faces and named instances (if the index is < 0) and exit
> with error so that FT_Open_Face does not try to read and output this
> data again?
In case this makes life simpler, please do it! The alternative as
> What am I missing?
My main concern is that *after* `woff2_open_font' returns,
`sfnt_init_face' attempts to read the TTC header and extract
information about the total number of faces, and stores this in
`face->num_faces', which will override the value stored by
`woff2_open_font'.
--
Nikhil
>
> This means that you can quickly extract the number of TTC subfonts,
> right?
Yes, this value is also stored in `WOFF2_HeaderRec' as `num_fonts'.
>
> > One solution is to load all the faces in the WOFF2 and write all
> > tables along with the TTC header. This may slow down the process if
>
> `woff2_open_font' reads the WOFF2 TTC header and uses that
> information to get tables for the requested font index.
This means that you can quickly extract the number of TTC subfonts,
right?
>> However, to get the number of named instances for a variation font
>> with index N, loading this
