[Webkit-unassigned] [Bug 240865] [GTK] Webpages completely slow down when CSS blur filter is in use
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Thu Sep 29 05:11:31 PDT 2022
https://bugs.webkit.org/show_bug.cgi?id=240865
--- Comment #4 from Carlos Garcia Campos <cgarcia at igalia.com> ---
Created attachment 462701
--> https://bugs.webkit.org/attachment.cgi?id=462701&action=review
Test case
There are two files in the tarball:
- test-cpu.html: it has several images with blur filter. It's slow, it's easier to reproduce by resizing the window rather than just scrolling.
- test-gpu: it's the same but adding a translateZ transform to force the images to be accelerated. Performance is much better, but there are two issues:
+ Rendering is ot the same as the sofotware version, it looks like pixelated.
+ Images disappear when scrolling and they aren't rendered anymore even if the window is resized.
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