Re: [ft-devel] ftgrays - exact pixel coverage?

[Werner LEMBERG]

>> I believe there is discrepancy between what's written in ftgrays.c
>> and its actual functioning.  It is said it "computes the _exact_
>> coverage of the outline on each pixel cell".  But the following
>> program shows this is not true.

Good point!  Thanks for reminding us.  Consequently, I think that...

> To speed up the rendering ftgrays flattens the curves, i.e., it
> renders them as short straight segments.  This explains your
> observation.  Note that the statement is still true for straight
> segments.

... this deserves a comment in the code (near the word `exact' :-).
Alexei, can you prepare something?


    Werner