LGTM2 because I don't believe that there are no web developer signals.
Surely there is demand for this?
/Daniel
On 2025-04-09 17:33, Chris Harrelson wrote:
LGTM1
On Tue, Apr 8, 2025 at 3:09 AM ccameron chromium
<ccame...@chromium.org> wrote:
Hello blink-dev!
Floating-point support for 2D canvas and for ImageData is now here
🎉. This is the last API that needed support (after WebGPU and
WebGL added it in previous years). This will enable unified high
bit depth (e.g, medical) and high dynamic range (e.g, shiny)
application support across all canvas APIs, and across all of the
(wildly varying) operating systems that Blink ships on.
Contact emails
ccame...@chromium.org, yi...@chromium.org
Explainer
https://github.com/ccameron-chromium/ColorWeb-CG/blob/canvas2d_float/canvas_float.md
Specification
https://github.com/w3c/ColorWeb-CG/blob/master/canvas_float.md
Summary
Introduce the ability to use floating point pixel formats (as
opposed to 8-bit fixed point) with CanvasRenderingContext2D,
OffscreenCanvasRenderingContext2D, and ImageData. This is
necessary for high precision applications (e.g, medical
visualization), high dynamic range content, and linear working
color spaces.
Blink component
Blink>Canvas
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ECanvas%22>
TAG review
https://github.com/w3ctag/design-reviews/issues/1030
TAG review status
Issues addressed
Risks
Interoperability and Compatibility
None.
/Gecko/: Positive
(https://github.com/mozilla/standards-positions/issues/708)
/WebKit/: No signal
(https://github.com/WebKit/standards-positions/issues/91) Updates
off-bug has been positive.
/Web developers/: No signals
/Other signals/:
Ergonomics
This will frequently be used with the (under development) HDR
canvas support.
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
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
Flag name on about://flags
None
Finch feature name
CanvasFloatingPoint
Rollout plan
Will ship enabled for all users
Requires code in //chrome?
False
Tracking bug
https://crbug.com/40245602
Availability expectation
Feature is available on Web Platform Baseline within <<12 months
of launch in Chrome.
Adoption expectation
Feature is used by specific partner(s) to provide functionality
within <<12 months of launch in Chrome.
Estimated milestones
Shipping on desktop 137
Shipping on Android 137
Shipping on WebView 137
Anticipated spec changes
No future spec changes.
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5086141338877952?gate=5074492622110720
Links to previous Intent discussions
Intent to Prototype:
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAGnfxj_7FCH9mmGGB3Q3ZKJqP1EamLGUpOzjSpZYHXVkVOWW_w%40mail.gmail.com
This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.
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