[Bug 35579] Poor performance in Firefox 4

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Mar 25 18:22:15 PDT 2011


--- Comment #25 from Konstantin Svist <fry.kun at gmail.com> 2011-03-25 18:22:15 PDT ---
(In reply to comment #24)
> One way to hardware accelerate it would be to treat the texture as argb, but
> first copy the alpha channel of the border pixels somewhere else, then replace
> the alpha channel with 0xff, then copy the old alpha channel back.
> Also, with:
>         Option "ShadowFB" "true"
>         Option "noaccel"
> and pixman master I get 13-18 FPS.

Hopefully that won't be necessary -- looks like Moz guys are planning to switch
to RepeatPad

But how come ShadowFB+noaccel is so much faster than fallback? (I see ~5FPS in
that case)

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