Re: [ft-devel] Regarding head-table Bit 3: Force ppem to integer values for all internal scaler math

[Werner LEMBERG]

> Essentially it's about whether FreeType should respect bit 3 of
> head-table flags:
> 
>   http://www.microsoft.com/typography/otspec/head.htm
> 
> and implemented here:
> 
>   https://github.com/behdad/freetype/blob/master/src/truetype/ttobjs.c#L1189
> 
> I don't think applying this rounding makes sense when not doing
> bytecode hinting.  Indeed, it breaks linear scaling, etc.

Sounds sensible to disable it for the non-hinting case.  Can you
prepare a patch?

And do you have data on Windows behaviour for TrueType fonts with and
without hints?  Or Apple data, which might be relevant also since they
don't use hints...


    Werner