Bug 244845

Summary:	[iOS] screen.colorDepth reports incorrect value
Product:	WebKit	Reporter:	Ali Juma <ajuma>
Component:	Media	Assignee:	Anne van Kesteren <annevk>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	annevk, dino, greg323464, simon.fraser, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Ali Juma 2022-09-06 07:59:59 PDT

On iOS, screen.colorDepth is hard-coded to return 32 (see https://github.com/WebKit/WebKit/blob/main/Source/WebCore/platform/ios/PlatformScreenIOS.mm#L52).

However, according to the spec (https://drafts.csswg.org/cssom-view/#dom-screen-colordepth), the return value is meant to be the number of bits allocated to colors, excluding the alpha channel, so 32 seems generally incorrect.

Comment 1 Radar WebKit Bug Importer 2022-09-13 08:00:19 PDT

<rdar://problem/99871925>

Comment 2 Alexey Proskuryakov 2023-03-27 15:13:54 PDT

*** Bug 254488 has been marked as a duplicate of this bug. ***

Comment 3 Anne van Kesteren 2023-03-28 10:44:01 PDT

Pull request: https://github.com/WebKit/WebKit/pull/12062

Comment 4 EWS 2023-03-30 22:41:46 PDT

Committed 262386@main (c073b6cbaccd): <https://commits.webkit.org/262386@main>

Reviewed commits have been landed. Closing PR #12062 and removing active labels.