Correct, `constrained-high` will render content somewhere between "how it would appear on an extremely capable HDR display" (`high`) and "how it would appear on an SDR display" (`standard`). Generally, this lines up with how content would appear on a "borderline HDR" display (one that has about 1 stop of headroom <https://drafts.csswg.org/css-color-hdr/#introducing-headroom>).
On Mon, Dec 9, 2024 at 2:10 PM Mike Taylor <miketa...@chromium.org> wrote: > Can you explain how `dynamic-range-limit: constrained-high` works with the > dynamic-range media feature? Would it match standard or high (my > understanding it that it's somewhere in between). > On 12/9/24 6:25 PM, ccameron chromium wrote: > > Post-weekend ping of this CSS property. > > On Wed, Dec 4, 2024 at 1:40 PM ccameron chromium <ccame...@chromium.org> > wrote: > >> Contact emails ccame...@chromium.org, sbouko...@google.com >> >> Explainer >> https://github.com/ccameron-chromium/hdr-headroom-limit/blob/main/EXPLAINER.md >> >> Specification >> https://drafts.csswg.org/css-color-hdr/#the-dynamic-range-limit-property >> >> Summary >> >> Enables a page to limit the maximum brightness of HDR content. >> >> >> Blink component Blink>CSS >> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ECSS> >> >> TAG review None >> >> TAG review status Not applicable >> >> Risks >> >> >> Interoperability and Compatibility >> >> None >> >> >> *Gecko*: No signal ( >> https://github.com/mozilla/standards-positions/issues/979) >> >> *WebKit*: No signal ( >> https://github.com/WebKit/standards-positions/issues/312) WebKit >> engineers have expressed positive views of this proposal (it is similar to >> features available on macOS and iOS). >> >> *Web developers*: Positive ( >> https://github.com/w3c/csswg-drafts/issues/9074) Adobe has endorsed this >> proposal. Internal developers at Google have also requested this proposal. >> >> *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? >> >> N/A >> >> >> Debuggability >> >> None >> >> >> 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. Extensive tests of CSS properties in wpt/css/css-color-hdr. >> >> Full end-to-end testing requires observation on an HDR display. There >> does not yet exist a way to test high dynamic range (or wide color gamut) >> rendering: https://github.com/web-platform-tests/wpt/issues/44320 >> >> >> Flag name on about://flags Experimental web platform features >> >> Finch feature name CSSDynamicRangeLimit >> >> Requires code in //chrome? False >> >> Tracking bug https://crbug.com/1470298 >> >> Availability expectation Feature available on Web Platform in browsers >> as they add HDR image support (only Chromium supports HDR images so far). >> >> Adoption expectation Feature is requested by specific partners. >> >> 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. >> >> Sample links >> https://ccameron-chromium.github.io/hdr-headroom-limit/example.html >> >> Estimated milestones >> Shipping on desktop 133 >> Shipping on Android 133 >> Shipping on WebView 133 >> Anticipated spec changes No anticipated future spec changes. >> >> Link to entry on the Chrome Platform Status >> https://chromestatus.com/feature/5146250411769856?gate=5206008539906048 >> >> Links to previous Intent discussions Intent to Prototype: >> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAGnfxj-m-wA4B%3Dy4eQ-MwyHFgs4abfm9JW5XcP6s_X2bpEtc8w%40mail.gmail.com >> >> >> 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 blink-dev+unsubscr...@chromium.org. > To view this discussion visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CALpoW6R%3D_hW3_xBfNGGOq4G1NV%3DeuQ-nCOD%3DeM%2BMOaPsm_dfMQ%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CALpoW6R%3D_hW3_xBfNGGOq4G1NV%3DeuQ-nCOD%3DeM%2BMOaPsm_dfMQ%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > -- 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 blink-dev+unsubscr...@chromium.org. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CALpoW6S3kugKZ4P8EY5J%3D%2BMvKkKk%3DQnLMK7MyShwftym10Q8-w%40mail.gmail.com.
