1808602 - Add prefs to limit WebGPU `requestAdapters` to return only specific adapters

Status: RESOLVED FIXED

(Core :: Graphics: WebGPU, enhancement, P1)

Description

[Jim Blandy :jimb]

For testing purposes (fuzzer test case reduction, for example), it would valuable to have a pref that forces GPU.requestAdapter to only consider one specific backend.

This comment probably marks where the check should go.

Comment 1

[Jim Blandy :jimb]

When this is implemented, let :jkratzer know.

Comment 2

[Jim Blandy :jimb]

Tyson says that if the pref selects something that isn't available on the current platform, WebGPU should just fall back to something reasonable, since the fuzzing people don't have an easy way to restrict pref values to something appropriate to the platform.

Comment 3

[Jim Blandy :jimb]

Attachment: Bug 1808602: Implement 'dom.webgpu.wgpu-backend' pref. r?jrmuizel

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/07b81afaa59e
Implement 'dom.webgpu.wgpu-backend' pref. r=jrmuizel

Comment 5

[Norisz Fay [:noriszfay]]

Backed out for causing python failure on test_generate_static_pref_list.py

Backout link

Push with failures

Failure log

Comment 6

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/27f1b00025ab
Implement 'dom.webgpu.wgpu-backend' pref. r=jrmuizel

Comment 7

[Cristina Horotan [:chorotan]]

https://hg.mozilla.org/mozilla-central/rev/27f1b00025ab