[cairo-bugs] [Bug 87438] [IVB/BDW Bisected] Firefox-fishbowl.trace and Firefox-fishtank.trace performance reduced ~96%

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87438

--- Comment #2 from Bill Spitzak <spitzak at gmail.com> ---
If the filter is left at the default of CAIRO_FILTER_GOOD this is to be
expected. Changing the filter to CAIRO_FILTER_BILINEAR should restore the
speed.

An actual fix will require adding code to pixman so that the filtering can be
done in the X server. Otherwise making images into pixmaps in an attempt to
speed things up actually make it slower as they just have to be read back into
the client program to do the transform.

It may also be necessary to implement 2-pass filtering.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.cairographics.org/archives/cairo-bugs/attachments/20141222/f18074ad/attachment.html>