Re: [ft-devel] Clean-up of af_loader_load_glyph()

[Werner LEMBERG]

>> Sorry, bad wording.  I mean that the user wants to position the
>> glyph at a non-integer x value, and the auto-hinter tries to `warp'
>> the glyph horizontally so that it still gets aligned to the grid.
> 
> Ah, so fractional advance widths?

Yes.

> Aren't these conceptually incompatible with the autohinter method of
> snapping outer edges to the grid to achieve sharpness?

I don't think so, cf. the `warping' code in the auto-hinter.

> The only thing you could do would be to adjust stem thickness, but
> the autohinter doesn't do that iirc?

Correct, no stem thickness adjustment.  The warper does scaling and
shifting instead, trying some configurations until it finds a best
one.


    Werner