Bug 286742

Summary:	[CoordinatedGraphics] The layer backing store might not change after being set to nullptr
Product:	WebKit	Reporter:	Carlos Garcia Campos <cgarcia>
Component:	Platform	Assignee:	Carlos Garcia Campos <cgarcia>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Carlos Garcia Campos

Reported 2025-01-30 05:06:59 PST

This is because CoordinatedPlatformLayer::flushCompositingState returns early if there aren't pending changes and m_backingStoreProxy is nullptr. So, if backing store is reset and nothing else changes we don't change the target layer.

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Carlos Garcia Campos

Comment 1 2025-01-30 05:10:20 PST

Pull request: https://github.com/WebKit/WebKit/pull/39760

EWS

Comment 2 2025-01-31 01:20:14 PST

Committed 289602@main (8702d7ebc9db): <https://commits.webkit.org/289602@main> Reviewed commits have been landed. Closing PR #39760 and removing active labels.

Radar WebKit Bug Importer

Comment 3 2025-01-31 01:21:12 PST

<rdar://problem/143945783>

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