[webkit-changes] [WebKit/WebKit] 126e9c: [threaded-animation-resolution] don't accelerate s...

[Antoine Quint]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 126e9c6fc2313c7e6232a538f382b8dbb6f3224c
      https://github.com/WebKit/WebKit/commit/126e9c6fc2313c7e6232a538f382b8dbb6f3224c
  Author: Antoine Quint <graouts at webkit.org>
  Date:   2024-02-16 (Fri, 16 Feb 2024)

  Changed paths:
    M Source/WebCore/animation/KeyframeEffect.cpp
    M Source/WebCore/rendering/RenderLayerBacking.cpp

  Log Message:
  -----------
  [threaded-animation-resolution] don't accelerate size-dependent transform interpolation with if width and `height` are animated
https://bugs.webkit.org/show_bug.cgi?id=269563

Reviewed by Dean Jackson.

We fixed a case in 272022 at main where animating `width` or `height` while also animating `translate` or `transform: translate()`
with relative values would require transform interpolation to not be accelerated.

We now do the same work with threaded animation resolution, which makes the following WPT tests pass:

- css/css-transforms/animation/transform-percent-with-width-and-height-separate.html: Added.
- css/css-transforms/animation/transform-percent-with-width-and-height.html: Added.
- css/css-transforms/animation/translate-percent-with-width-and-height-separate.html: Added.
- css/css-transforms/animation/translate-percent-with-width-and-height.html: Added.

* Source/WebCore/animation/KeyframeEffect.cpp:
(WebCore::KeyframeEffect::canBeAccelerated const):
* Source/WebCore/rendering/RenderLayerBacking.cpp:
(WebCore::RenderLayerBacking::updateAcceleratedEffectsAndBaseValues):

Canonical link: https://commits.webkit.org/274815@main