[Bug 35579] Poor performance in Firefox 4

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=35579

--- Comment #23 from Michel Dänzer <michel at daenzer.net> 2011-03-25 11:10:12 PDT ---
(In reply to comment #22)
> Didn't look obviously incorrect, though TBH it was moving so fast I wouldn't
> notice. I'm sure it can be slowed down and checked pixel-by-pixel.

I'd expect the problem to be more obvious than that. Basically, something being
(not) there when it's (not) supposed to around the edges of the transformed
picture.

> As for alpha channel -- is the caller (Firefox) made aware of this limitation,
> i.e. can it add the alpha channel automatically?

No, I'm afraid users of the RENDER extension have to actively avoid the quirks
of its semantics.

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