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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 Web Feature ID 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 (eg, games) or spatial processing (eg, 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? 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 (eg links to known github issues in the project for the feature specification) whose resolution may introduce web compat/interop risk (eg, 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. -- 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.
