Re: Re: Sub-pixel area computations

Around 13 o'clock on May 3, Carl Worth wrote:

> As you mentioned, the precise values returned by the area function
> really doesn't matter as long as it behaves deterministically. In the
> same sense, the precise values returned by the alpha function are not
> that important either, (as long as the sum of the polygon alphas is
> the same as the alpha of the whole pixel). 

Yes, I think I agree.  Your computation is significantly simpler, please 
use it instead.

Keith Packard        XFree86 Core Team        Compaq Cambridge Research Lab