LGTM3
/Daniel
On 2025-10-15 17:15, Chris Harrelson wrote:
LGTM2
On Wed, Oct 15, 2025 at 7:01 AM 'François Beaufort' via blink-dev
<[email protected]> wrote:
On Wed, Oct 15, 2025 at 3:46 PM Daniel Bratell
<[email protected]> wrote:
Judging from what you write, the explainer must be slightly
dated, but as it is, it clearly states that this must not
ship. Someone (TM) should update that text.
Thanks for flagging this issue. Someone (a nice person) has just
sent a PR: https://github.com/gpuweb/gpuweb/pull/5388
The signals from other vendors become a bit unclear when
everything "post initial release" is bundled together. The
positive signal from WebKit is a year old and I assume this
particular feature did not exist back then.
The Webkit representative who published this signal has also
approved the feature PR:
https://github.com/gpuweb/gpuweb/pull/5361#pullrequestreview-3325251580
Note that meeting notes linked show that both Mozilla and Safari
agreed on this feature.
Otherwise it seems like a small straightforward change.
Agree ;)
/Daniel
On 2025-10-14 21:03, 'François Beaufort' via blink-dev wrote:
*Contact emails*
[email protected]
*Explainer*
https://github.com/gpuweb/gpuweb/blob/main/proposals/texture-component-swizzle.md
*Specification*
https://gpuweb.github.io/gpuweb/#dom-gpufeaturename-texture-component-swizzle
*Summary*
Functionality added to the WebGPU spec after its first
shipment in a browser.
Allows GPUTextureViews to rearrange or replace the color
components from texture's red/green/blue/alpha channels when
accessed by a shader.
*Blink component*
Blink>WebGPU
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EWebGPU%22>
*Web Feature ID*
webgpu <https://webstatus.dev/features/webgpu>
*TAG review*
None
*TAG review status*
Pending
*Risks*
*Interoperability and Compatibility*
This feature has not yet been implemented yet 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://github.com/gpuweb/gpuweb/wiki/GPU-Web-2025%E2%80%9010-08#should-texture-swizzle-move-usage-restrictions-from-createview-to-createbindgroupbeginrenderpass-5298,
https://github.com/gpuweb/gpuweb/wiki/GPU-Web-2025%E2%80%9010-01#should-texture-swizzle-move-usage-restrictions-from-createview-to-createbindgroupbeginrenderpass-5298,
and
https://github.com/gpuweb/gpuweb/wiki/GPU-Web-2024-09-F2F#finalize-texture-swizzle
/Gecko/: No
signal
(https://github.com/mozilla/standards-positions/issues/1205#issuecomment-3312534193)
/WebKit/: Positive
(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?
None
*Debuggability*
None
*Will this feature be supported on all six Blink platforms
(Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?*
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 at
https://github.com/gpuweb/cts/pull/4427
*Flag name on about://flags*
Enable Unsafe WebGPU
*Finch feature name*
WebGPUTextureComponentSwizzle
*Rollout plan*
Will ship enabled for all users
*Requires code in //chrome?*
False
*Tracking bug*
https://issues.chromium.org/issues/414312052
*Estimated milestones*
DevTrial on desktop 142
DevTrial on Android 142
*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/5110223547269120?gate=5339076953767936
This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.
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