Bug 228315

Summary:	layout tests should be runnable with non-sRGB color profiles
Product:	WebKit	Reporter:	Cameron McCormack (:heycam) <heycam>
Component:	Tools / Tests	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	ap, jbedard, simon.fraser, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Local Build
Hardware:	Unspecified
OS:	Unspecified
Bug Depends on:
Bug Blocks:	188320

Description Cameron McCormack (:heycam) 2021-07-26 23:07:16 PDT

Currently if you write a layout test that compares say

  <div style="width: 100px; height: 100px; background-color: red;"></div>

with

  <div style="width: 100px; height: 100px; background-color: color(display-p3 1 0 0 0);"></div>

then the test will pass.  We should probably have a way to run a test in a way that doesn't cause wide gamut colors to get clamped down to sRGB.

On macOS, we switch the display to an sRGB color profile and run all tests in this mode, but it looks like it's not sufficient to leave a Display P3 display with its factory color profile for the tests to pass.

Comment 1 Radar WebKit Bug Importer 2021-07-26 23:07:47 PDT

<rdar://problem/81147970>