Thanks for humoring me, I think my question doesn't really make much
sense upon further reflection. @media(dynamic-range: standard) and
@media(dynamic-range: high) are matching UA+device support, while
dynamic-range-limit is telling the UA how to display elements on said
device.
LGTM1
On 12/9/24 10:30 PM, ccameron chromium wrote:
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/ad01b00f-ca35-43e0-97aa-e35bc35cc744%40chromium.org.
