1951487 - [wpt-sync] Sync PR 51062 - Full implementation of scale transform render surface trigger

Status: RESOLVED FIXED

(Core :: Web Painting, task, P4)

Description

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Sync web-platform-tests PR 51062 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/51062
Details from upstream follow.

Chris Harrelson <[e-mail]> wrote:

Full implementation of scale transform render surface trigger

The general approach is as follows:

• Look for 2D scale transforms, and allocate effect nodes for them
  (if all goes well, this should have little or no effect on cc layer
  count or render surfaces)
• Upgrade the effect node for a 2D scale transform to a render surface
  if it doesn't have a backdrop filter in a descendant effect node, and
  has at least two composited layers under it.

Also, in particular this approach:

• Relies on implicit compositing of scale transform due to presence of
  composited descendants

Bug: 40084005

Change-Id: If7fff045752f5cf1c09e574a81d181b2a8ac4959
Reviewed-on: https://chromium-review.googlesource.com/6299812
WPT-Export-Revision: d3362bf8c863e18fb6fef45fb2faaae1aa5f2191

Comment 1

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Pushed to try (stability) https://treeherder.mozilla.org/#/jobs?repo=try&revision=94917d66b068b4d029dae390461ad46d6386c552

Comment 2

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

CI Results

Ran 7 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 2 tests

Status Summary

Firefox

PASS: 1
FAIL: 1

Chrome

PASS: 2

Safari

PASS: 1
FAIL: 1

Links

Gecko CI (Treeherder)
GitHub PR Head
GitHub PR Base

Details

New Tests That Don't Pass

• /svg/extensibility/foreignObject/foreign-object-scale-scroll.html [wpt.fyi]: FAIL (Chrome: PASS, Safari: FAIL)

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/54c122e8d50e
[wpt PR 51062] - Full implementation of scale transform render surface trigger, a=testonly

Comment 4

[Cristina Horotan [:chorotan]]

https://hg.mozilla.org/mozilla-central/rev/54c122e8d50e