Hey Rick,

The spec PRs for all of these intents are landed but you're correct that
all the tests are. Tests aren't blocked, they just need someone to get to
it (myself for this particular feature) and we won't turn the feature on
until they are finished. I didn't realize that LGTMs waited on tests to be
finished. We have a pretty strong focus on testing in WebGPU and will
definitely not let a feature get enabled without tests being completed so
hopefully it's ok to LGTM without them? We totally expect some of these
recent I2S to slip to M123 because tests are still needed, we just don't
know which ones yet.

Cheers,

Corentin

On Wed, Jan 10, 2024 at 4:00 PM Rick Byers <rby...@chromium.org> wrote:

> Hi Corentin,
> This looks minor and probably pretty easy. But we do normally like to see
> spec PRs and tests land (or have a discussion around why they're blocked)
> before approving. Thoughts?
>
> Rick
>
> On Fri, Jan 5, 2024 at 8:18 AM Corentin Wallez <cwal...@chromium.org>
> wrote:
>
>> Contact emailscwal...@google.com
>>
>> ExplainerNone
>>
>> Specificationhttps://github.com/gpuweb/gpuweb/pull/4331
>>
>> Summary
>>
>> Functionality added to the WebGPU/WGSL spec after its first shipment in a
>> browser. Loosens a restriction where using readonly depth-stencil
>> attachments in a render pass required both aspects (depth and stencil) to
>> be readonly. This was too strict, and prevent use-cases where for example
>> the depth is used readonly for contact shadow tracing, while the stencil
>> buffer is written to do identify pixels for further processing. (Both Unity
>> and Unreal do things with mixed depth-stencil readonliness).
>>
>>
>> Blink componentBlink>WebGPU
>> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EWebGPU>
>>
>> TAG reviewNone
>>
>> TAG review statusNot applicable
>>
>> Risks
>>
>>
>> Interoperability and Compatibility
>>
>> Separate RODS has not yet been implemented in any browser, but has been
>> approved by the GPU for the Web Community Group, with representatives from
>> Chrome, Firefox, and Safari.
>>
>>
>> *Gecko*: No signal (
>> https://github.com/mozilla/standards-positions/issues/953)
>>
>> *WebKit*: Positive (
>> https://github.com/WebKit/standards-positions/issues/294#issuecomment-1877411933)
>> Note that this is a blanket approval from Safari for additions to the v1
>> WebGPU/WGSL spec.
>>
>> *Web developers*: Positive Requested by multiple developers including
>> for ports of the Unity and Unreal engines to WebGPU.
>>
>> *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 at the moment, WebGPU currently does not ship on Android WebView.
>>
>>
>> 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, 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. Note that tests are still being written, but the feature will
>> not be launched until it is fully tested.
>>
>>
>> Flag name on chrome://flagsNone
>>
>> Finch feature nameNone
>>
>> Non-finch justificationNone
>>
>> Requires code in //chrome?False
>>
>> Tracking bughttps://bugs.chromium.org/p/dawn/issues/detail?id=2146
>>
>> Availability expectationFeature is available only in Chromium browsers
>> for the near future, on the order of months. Other browsers intend to ship
>> WebGPU support, but don't have specified timelines.
>>
>> Non-OSS dependencies
>>
>> Does the feature depend on any code or APIs outside the Chromium open
>> source repository and its open-source dependencies to function?
>> No
>>
>> Estimated milestones
>>
>> No milestones specified
>>
>>
>> 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/5074024696905728
>>
>> This intent message was generated by Chrome Platform Status
>> <https://chromestatus.com/>.
>>
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>> .
>>
>

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