Bug 257358

Summary:	REGRESSION (264433@main): Drawing small images becomes slower
Product:	WebKit	Reporter:	Said Abou-Hallawa <sabouhallawa>
Component:	Images	Assignee:	Said Abou-Hallawa <sabouhallawa>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	sabouhallawa, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=256620 https://bugs.webkit.org/show_bug.cgi?id=257722 https://bugs.webkit.org/show_bug.cgi?id=258092

Description Said Abou-Hallawa 2023-05-25 15:53:42 PDT

264433@main made RenderBoxModelObject::decodingModeForImageDraw() call RenderElement::imageVisibleInViewport() for all images including the small ones which do not require async image decoding unless the attribute decoding="async" is specified.

This regressed the score of the MotionMark Leaves sub-test by almost 2.5%.

Comment 1 Said Abou-Hallawa 2023-05-25 15:55:00 PDT

rdar://109810640

Comment 2 Said Abou-Hallawa 2023-05-25 17:09:50 PDT

Pull request: https://github.com/WebKit/WebKit/pull/14376

Comment 3 EWS 2023-05-30 09:43:10 PDT

Committed 264679@main (efb71a57dadd): <https://commits.webkit.org/264679@main>

Reviewed commits have been landed. Closing PR #14376 and removing active labels.