LGTM2
On 1/17/24 7:49 PM, Chris Harrelson wrote:
LGTM1 (as noted in the other intent, tests are needed but we aren't
blocking approval on them in this case)
On Mon, Jan 8, 2024 at 2:04 AM 'François Beaufort' via blink-dev
<[email protected]> wrote:
On Mon, Jan 8, 2024 at 11:01 AM Yoav Weiss
<[email protected]> wrote:
On Fri, Jan 5, 2024, 14:19 Corentin Wallez
<[email protected]> wrote:
Contact emails
[email protected]
Explainer
None
Specification
https://gpuweb.github.io/gpuweb/#dom-gpustoragetextureaccess-read-write
Is there a way for developers to feature detect support for
this extra value?
Yes. All they have to do is check wgslLanguageFeatures
<https://gpuweb.github.io/gpuweb/#gpuwgsllanguagefeatures> as below.
if
(navigator.gpu.wgslLanguageFeatures.has("readonly_and_readwrite_storage_textures"))
{
// Read-only and read-write storage textures are supported!
}
Summary
Functionality added to the WebGPU/WGSL spec after its
first shipment in a browser. Adds support for (read-only
and) read-write storage textures which allow more general
access to texture memory for GPU computation and can
unlock more advanced graphical algorithms. This feature
has been request by developers very often.
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
Read-write storage textures have not yet been implemented
in any browser, but have 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/948)
/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/: Strongly positive One of the most
requested additional features for 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://flags
None
Finch feature name
None
Non-finch justification
None
Requires code in //chrome?
False
Tracking bug
https://bugs.chromium.org/p/dawn/issues/detail?id=1972
Availability expectation
Feature 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/6469283075063808
This intent message was generated by Chrome Platform
Status <https://chromestatus.com/>.
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