[cairo] Non-antialiased rendering in image surface

Chris Wilson chris at chris-wilson.co.uk
Sat Jun 26 08:23:28 PDT 2010


On Sat, 26 Jun 2010 10:48:03 -0400, cu <cairouser at yahoo.com> wrote:
> After the previous set of issues with non-antialiased rendering, there
> is a question that I think went unanswered.
> Someone mentioned "non-optimized code path" "with a1" - I didn't quite
> get a reference, so I'll ask directly:
> 
> Is there something about non-antialiased rendering that makes it less
> preferred or slower than antialiased rendering wrt image surface?

There are no optimised fast paths for a1 rendering (or use of a1 masks)
in either pixman or modern graphics cards. (AFAIK)
-ickle

-- 
Chris Wilson, Intel Open Source Technology Centre


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