Bug 242811

Summary:	[Cocoa] Hard code the IOSurface bytesPerRowAlignment to 64
Product:	WebKit	Reporter:	Said Abou-Hallawa <sabouhallawa>
Component:	Layout and Rendering	Assignee:	Said Abou-Hallawa <sabouhallawa>
Status:	RESOLVED WONTFIX
Severity:	Normal	CC:	bfulgham, simon.fraser, webkit-bug-importer, zalan
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=242815

Said Abou-Hallawa

Reported 2022-07-15 11:01:39 PDT

In WebKit, we use IOSurfaceAlignProperty(kIOSurfaceBytesPerRow, ...) to ask IOKit to do the alignment for us. And we use IOSurfaceGetPropertyAlignment() when we do the alignment manually. It seems other Cocoa frameworks sometimes use different alignment values. If the alignment values are different, these frameworks will fail to complete IOSurface operations.

Attachments
Add attachment proposed patch, testcase, etc.

Said Abou-Hallawa

Comment 1 2022-07-15 11:02:01 PDT

rdar://79626142

Said Abou-Hallawa

Comment 2 2022-07-15 11:10:37 PDT

Pull request: https://github.com/WebKit/WebKit/pull/2460

Note You need to log in before you can comment on or make changes to this bug.