Bug 223307

Summary:

Avoid unnecessary repaints when transforms change

Product:

WebKit

Reporter:

Simon Fraser (smfr) <simon.fraser>

Component:

Layout and Rendering

Assignee:

Simon Fraser (smfr) <simon.fraser>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

bfulgham, changseok, esprehn+autocc, ews-watchlist, glenn, jonlee, kondapallykalyan, pdr, sam, simon.fraser, webkit-bug-importer, zalan

Priority:

Keywords:

InRadar

Version:

WebKit Nightly Build

Hardware:

Unspecified

OS:

Unspecified

Attachments:

Description	Flags
Patch	zalan: review+

Description Simon Fraser (smfr) 2021-03-16 22:29:02 PDT

Avoid unnecessary repaints when transforms change

Comment 1 Simon Fraser (smfr) 2021-03-16 22:32:19 PDT

Created attachment 423436 [details]
Patch

Comment 2 Sam Weinig 2021-03-17 07:39:07 PDT

Comment on attachment 423436 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=423436&action=review

> Source/WebCore/ChangeLog:17
> +        This reduces some repaint calls in the MotionMark leaves test.

This seems like something that would be great to be able to write tests for. Any ideas on how we could make this testable?

Comment 3 Radar WebKit Bug Importer 2021-03-17 13:53:00 PDT

<rdar://problem/75542232>

Comment 4 Simon Fraser (smfr) 2021-03-17 16:13:17 PDT

Landed with a test:
https://trac.webkit.org/changeset/274597/webkit