Contact emails
[email protected]

Explainer
No information provided


Specification
https://github.com/gpuweb/cts/pull/4516


Summary
Functionality added to the WebGPU spec after its first shipment in a browser. 
Adds a new scope to the uniformity analysis and changes which parts of the 
language are checked in each to allow subgroup functionality to be considered 
uniform in more cases.


Blink component
Blink>WebGPU


Web Feature ID
webgpu


Motivation
This feature allows subgroup functionality to be considered uniform in more 
cases representing better quality-of-life for developers and less likelihood of 
disabling uniformity checks altogether.


Initial public proposal
No information provided


TAG review
No information provided


TAG review status
Pending


Risks




Interoperability and Compatibility
Approved as a WebGPU language feature at W3C. Meetings include participants 
from Firefox and Safari.

Gecko: No signal 
(https://github.com/mozilla/standards-positions/issues/1205#issuecomment-3312534193)

WebKit: Closed Without a Position 
(https://github.com/WebKit/standards-positions/issues/294#issuecomment-1877411933)

Web developers: No signals

Other signals:


WebView application risks

Does this intent deprecate or change behavior of existing APIs, such that it 
has potentially high risk for Android WebView-based applications?
No information provided



Debuggability
No information provided


Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, 
ChromeOS, Android, and Android WebView)?
Yes
All platforms will eventually have support. Will immediately be available on 
Android, Android WebView, ChromeOS, Mac, and Windows, since those platforms 
already support WebGPU. WebGPU will also start shipping on Linux in M145 on 
some devices, so this feature will become available when WebGPU does.


Is this feature fully tested by web-platform-tests?
Yes
WebGPU conformance tests were added in https://github.com/gpuweb/cts/pull/4516


Flag name on about://flags
Enable Unsafe WebGPU


Finch feature name
UnsafeWGSLFeatures


Rollout plan
Will ship enabled for all users


Requires code in //chrome?
False


Tracking bug
https://crbug.com/454653380


Estimated milestones


Shipping on desktop 145

Shipping on Android 145

Shipping on WebView 145




Anticipated spec changes

Open questions about a feature may be a source of future web compat or interop 
issues. Please list open issues (eg links to known github issues in the project 
for the feature specification) whose resolution may introduce web 
compat/interop risk (eg, changing to naming or structure of the API in a 
non-backward-compatible way).
No information provided


Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5673998232977408?gate=5020649787621376


This intent message was generated by Chrome Platform Status.

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