Contact emails

fbeauf...@google.com

Explainer

It is important for libraries that take user-provided GPUDevice objects to
access information about the physical GPU, as they may need to optimize or
implement workarounds based on the GPU architecture. While it is possible
to access this information through the GPUAdapter object, there is no
direct way to get it from a GPUDevice alone. This can be inconvenient, as
it may require users to provide additional information alongside the
GPUDevice.
To address this problem, we expose GPUAdapterInfo through the GPUDevice
adapterInfo attribute. Those are similar to the existing GPUAdapter info
attribute.
https://github.com/gpuweb/gpuweb/pull/4809

Specification

https://www.w3.org/TR/webgpu/#dom-gpudevice-adapterinfo

Summary

Functionality added to the WebGPU spec after its first shipment in a
browser.

The GPUDevice adapterInfo attribute exposes the same GPUAdapterInfo as the
GPUAdapter object..

Blink component

Blink>WebGPU
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EWebGPU>

TAG review

None

TAG review status

Not applicable

Risks

Interoperability and Compatibility

This feature has not yet been implemented in any browser. It has been
approved by the GPU for the Web Community Group, with representatives from
Chrome, Firefox, and Safari. See minutes at
https://docs.google.com/document/d/1FlVeiqRzx5t-9z03Ocx7_gw-lPpysUaw_83xofJyxQQ/edit
and https://github.com/gpuweb/gpuweb/pull/4809

Gecko: No signal (Mozilla members have requested during weekly
standardization meetings that we postpone filing standard positions until
we reach Candidate Recommendation (CR) status in Q4.)

WebKit: Positive (
https://github.com/WebKit/standards-positions/issues/294#issuecomment-1877411933
)

Web developers: Positive (https://github.com/gpuweb/gpuweb/issues/4810)

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?

None


Debuggability

None


Will this feature be supported on all six Blink platforms (Windows, Mac,
Linux, ChromeOS, Android, and Android WebView)?

No

All platforms will eventually have support. Will immediately be available
on Android, Android WebView, ChromeOS, Mac, and Windows, since those
platforms already support WebGPU. Linux is planned to have WebGPU support
in the future, so this feature will become available when WebGPU does.

Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
?

Yes

WebGPU/WGSL have a conformance test suite (https://github.com/gpuweb/cts)
that is regularly pulled into Chromium and part of the testing of Dawn/Tint
in Chromium. While the CTS can be embedded in WPT, the WebGPU team opted to
keep it separate in Chromium testing to use a customized harness for
robustness and performance. All the tests about this feature in WebGPU CTS
can be found through the below link: https://github.com/gpuweb/cts/pull/4023

Flag name on chrome://flags

chrome://flags/#enable-unsafe-webgpu

Finch feature name

WebGPUDeviceAdapterInfo

Requires code in //chrome?

False

Tracking bug

https://issues.chromium.org/issues/376600838

Estimated milestones

DevTrial on desktop

132

DevTrial  on Android

132




Anticipated spec changes

Open questions about a feature may be a source of future web compat or
interop issues. Please list open issues (e.g. links to known github issues
in the project for the feature specification) whose resolution may
introduce web compat/interop risk (e.g., changing to naming or structure of
the API in a non-backward-compatible way).

None


Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/6221851301511168?gate=6054578968330240

This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.

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