Bug 233527

Summary: [CSS Color 5] Update color-mix() to latest spec (again)
Product: WebKit Reporter: Sam Weinig <sam>
Component: CSSAssignee: Sam Weinig <sam>
Status: RESOLVED FIXED    
Severity: Normal CC: cdumez, darin, dino, esprehn+autocc, ews-watchlist, glenn, gyuyoung.kim, heycam, macpherson, menard, simon.fraser, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
WIP
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Description Sam Weinig 2021-11-26 11:06:44 PST 
color-mix() has been updated with support for specific hue interpolation methods based on the new <color-interpolation-method> construction https://drafts.csswg.org/css-color-4/#color-interpolation-method.

Since <color-interpolation-method> is also been adopted for specifying CSS gradient interpolation (https://drafts.csswg.org/css-images-4/#gradients) so it would be good to make sure it is useable for both.
Comment 1 Sam Weinig 2021-11-27 11:12:37 PST Comment hidden (obsolete)
Comment 2 Sam Weinig 2021-11-27 20:51:45 PST 
Created attachment 445230 [details]
Patch
Comment 3 Sam Weinig 2021-11-27 20:52:56 PST 
This addresses most of the changes. Still not addressed (and will be handled separately):

- None/missing components (we need to support them first)
- Alpha premultiplication (I need a bit more clarity on this)
Comment 4 EWS 2021-11-28 10:55:11 PST 
Committed r286196 (244578@main): <https://commits.webkit.org/244578@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 445230 [details].
Comment 5 Radar WebKit Bug Importer 2021-11-28 10:56:20 PST 
<rdar://problem/85788950>