Bug 238259 - [Nicosia] Images in webkit.org/blog/ don't show up with threaded rendering
Summary: [Nicosia] Images in webkit.org/blog/ don't show up with threaded rendering
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebKitGTK (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Miguel Gomez
URL:
Keywords:
Depends on:
Blocks: GTK4
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Reported: 2022-03-23 07:21 PDT by Alice Mikhaylenko
Modified: 2022-05-06 00:44 PDT (History)
6 users (show)

See Also:

Attachments
Patch (5.08 KB, patch)
2022-05-05 08:23 PDT, Miguel Gomez 		no flags Details | Formatted Diff | Diff
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Description Alice Mikhaylenko 2022-03-23 07:21:39 PDT 
For example with https://webkit.org/blog/12445/new-webkit-features-in-safari-15-4/

With GTK3 or WEBKIT_NICOSIA_PAINTING_THREADS=0 it works fine.
Comment 1 johnfactotum1 2022-03-31 23:36:02 PDT 
Seems to be caused by `filter: brightness(1)` on the `.preserve-color` class. In fact, all elements with any CSS filter applied seem to be invisible.

For example, on https://developer.mozilla.org/en-US/docs/Web/CSS/filter. Almost all of the examples show up blank.

The exceptions are the two "SVG equivalents" of `drop-shadow()`, which do show up but apparently without any filter effect.

With GTK 3 or WEBKIT_NICOSIA_PAINTING_THREADS=0 everything works as expected.
Comment 2 Miguel Gomez 2022-05-05 08:23:43 PDT 
Created attachment 458874 [details]
Patch
Comment 3 EWS 2022-05-06 00:44:36 PDT 
Committed r293883 (250341@main): <https://commits.webkit.org/250341@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 458874 [details].