[cairo] API to disable subpixel antialiasing per-surface

[Jeff Muizelaar]

On 10/01/11 10:24 PM, Bill Spitzak wrote:
> Robert O'Callahan wrote:
>
>> Sometimes we're setting font options to CAIRO_ANTIALIAS_SUBPIXEL 
>> explicitly (e.g. downloaded fonts need Cleartype in Windows XP even 
>> if the user hasn't enabled Cleartype)
>
> If the fonts won't render without cleartype than it would seem the 
> font backend should use cleartype automatically without the program 
> having to request it!
The fonts will render without cleartype, however they often don't have 
hints so they can look quite bad without cleartype. i.e. this is an 
application policy decision and not something that has a correct an 
obvious answer.

-Jeff