LGTM1 On Fri, Sep 4, 2026 at 10:39 PM Chromestatus < [email protected]> wrote:
> *Contact emails* > [email protected] > > *Specification* > > https://html.spec.whatwg.org/multipage/canvas.html#colour-spaces-and-colour-correction > > *Summary* > Add srgb-linear and display-p3-linear color spaces (as defined by CSS) to > PredefinedColorSpace for use with canvases. > > *Blink component* > Blink>Canvas > <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ECanvas%22> > > *Web Feature ID* > canvas-2d-color-management > <https://webstatus.dev/features/canvas-2d-color-management> > > *Motivation* > Linear color spaces (where pixel values correspond linearly to luminance) > are extremely commonly used in applications with connections to physical > light rendering (e.g, games) or spatial processing (e.g, decimation, > anti-aliasing, and interpolation). > > *Initial public proposal* > *No information provided* > > *TAG review* > https://github.com/w3ctag/design-reviews/issues/1194 (Note that this is > for the full HDR on the web project, which this is a part of) > > *TAG review status* > Issues addressed > > *Goals for experimentation* > None > > *Risks* > > > *Interoperability and Compatibility* > *No information provided* > > *Gecko*: No signal > > *WebKit*: Positive Suggested by WebKit, already implemented in WebKit. > > *Web developers*: Positive Partners have repeatedly requested linear > working color spaces > > *Other signals*: > > *Ergonomics* > None > > *Activation* > None > > *Security* > None > > *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* > The corresponding CSS color spaces are supported in DevTools (DevTools > does not have any features related to canvas bitmap color spaces). > > *Will this feature be supported on all six Blink platforms (Windows, Mac, > Linux, ChromeOS, Android, and Android WebView)?* > Yes > > *Is this feature fully tested by web-platform-tests > <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?* > Yes > API tests (setting and getting): > https://wpt.fyi/results/html/canvas/element/manual/context-attributes/getContextAttributes.html > Draw-and-readback tests: > https://wpt.fyi/results/?label=experimental&label=master&aligned&q=2d.color.space > Chromium CLs: > https://chromium-review.git.corp.google.com/c/chromium/src/+/8313909 > Roundtrip tests (toDataURL, toBlob, etc): > https://chromium-review.git.corp.google.com/c/chromium/src/+/8312949 > https://chromium-review.git.corp.google.com/c/chromium/src/+/8314209 > > *Flag name on about://flags* > *No information provided* > > *Finch feature name* > ColorSpacePredefinedLinearSpaces > > *Rollout plan* > Will ship enabled for all users > > *Requires code in //chrome?* > False > > *Tracking bug* > https://issuetracker.google.com/issues/454152417 > > *Availability expectation* > Feature is available on Web Platform Baseline within 12 months of launch > in Chrome. > > *Adoption expectation* > Feature is considered a best practice for some use case within 12 months > of reaching Web Platform baseline. This is a very common space for > physically-based rendering applications in WebGL and WebGPU. > > *Adoption plan* > None. > > *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? > None > > *Estimated milestones* > Shipping on desktop 155 > Shipping on Android 155 > Shipping on WebView 155 > > *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). > A further color space in this class (either rec2100-linear or > rec2020-linear) has been requested but is not added in this feature. That > particular space has controversies that neither of these do, which we need > to be very careful to get right. > > *Link to entry on the Chrome Platform Status* > https://chromestatus.com/feature/5122501071994880?gate=6522766912258048 > > This intent message was generated by Chrome Platform Status > <https://chromestatus.com>. > > -- > You received this message because you are subscribed to the Google Groups > "blink-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6a9b2c7c.81999fdc.db953.0248.GAE%40google.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6a9b2c7c.81999fdc.db953.0248.GAE%40google.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. 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