[cairo] Bug with paint_with_alpha and perf issues when compositing with SOURCE
behdad at behdad.org
Tue May 27 00:20:15 PDT 2008
On Tue, 2008-05-27 at 00:42 -0400, Antoine Azar wrote:
> Hey all, I sent out this email some time ago but didn't get any
> feedback. Does anyone have any objection to having a composite_source
> function in the backends,
Yes. There's no rationale for that.
> and a fallback to pixman for the backends that don't support it the
> way we define it?
What's the point then? I don't see any. Backends can already condition
on the source. What does a new backend function offer?
> That would allow big speedups and correct rendering. Or is it
> useless to spend much time and effort on that as SOURCE compositing is
> not frequently used (and/or no one ever complained about it?) ?
Yeah, that too.
"Those who would give up Essential Liberty to purchase a little
Temporary Safety, deserve neither Liberty nor Safety."
-- Benjamin Franklin, 1759
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