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Reverts "Reland: [macOS] Use CVDisplayLink to drive repaint (#51126)" #51192

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@auto-submit auto-submit bot commented Mar 5, 2024

Reverts #51126

Initiated by: cbracken

Reason for reverting: looks like this regressed Skia benchmarks: https://flutter-flutter-perf.skia.org/e/?keys=Xbf8dce9c233bce34d20e2280e3f1d8db&selected=commit%3D39653%26name%3D%2Carch%3Dintel%2Cbranch%3Dmaster%2Cconfig%3Ddefault%2Cdevice_type%3Dnone%2Cdevice_version%3Dnone%2Chost_type%3Dmac%2Csub_result%3DtimeToFirstFrameRasterizedMicros%2Ctest%3Dflutter_gallery_macos__start_up%2C&xbaroffset=39569

The regression s

Original PR Author: knopp

Reviewed By: {cbracken}

This change reverts the following previous change:
Original Description:
This relands the PR reverted in #51095

Changes since the original PR:

  • The macOS embedder does not assume particular clock when calling the embedder API, but converts CAMediaTime to engine time and back (FlutterTimeConverter)
  • FlutterVSyncWaiter does not wait for displaylink callback during warmup frame. This should prevent timeToFirstFrameRasterizedMicros regressions.
  • When enforcing frame pacing the raster thread is not blocked. This should prevent average_frame_rasterizer_time_millis regressions.

Pre-launch Checklist

  • I read the Contributor Guide and followed the process outlined there for submitting PRs.
  • I read the Tree Hygiene wiki page, which explains my responsibilities.
  • I read and followed the Flutter Style Guide and the C++, Objective-C, Java style guides.
  • I listed at least one issue that this PR fixes in the description above.
  • I added new tests to check the change I am making or feature I am adding, or the PR is test-exempt. See testing the engine for instructions on writing and running engine tests.
  • I updated/added relevant documentation (doc comments with ///).
  • I signed the CLA.
  • All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel on Discord.

@auto-submit auto-submit bot added the revert of Bot Only: Tracking label for bot. Tracks new revert of pull requests. label Mar 5, 2024
@auto-submit auto-submit bot merged commit 78cecee into main Mar 5, 2024
7 checks passed
@auto-submit auto-submit bot deleted the revert_40018811ec0e364fc7f52e9d29a157f9df5778f3 branch March 5, 2024 03:25
auto-submit bot pushed a commit to flutter/flutter that referenced this pull request Mar 5, 2024
…144607)

flutter/engine@d514a30...17a4b66

2024-03-05 skia-flutter-autoroll@skia.org Roll Skia from a577399ed6fb to 5839a94bf28b (1 revision) (flutter/engine#51194)
2024-03-05 bdero@google.com [Impeller] Turn off StC. (flutter/engine#51191)
2024-03-05 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Reland: [macOS] Use CVDisplayLink to drive repaint (#51126)" (flutter/engine#51192)
2024-03-05 skia-flutter-autoroll@skia.org Roll Skia from 9c62e7b382cf to a577399ed6fb (1 revision) (flutter/engine#51190)
2024-03-05 31859944+LongCatIsLooong@users.noreply.github.com Reland "Remove migration flag and unused header files #50216" (flutter/engine#50259)
2024-03-05 zanderso@users.noreply.github.com Shift git version fetching to tools/gn (flutter/engine#51175)
2024-03-05 1889916+miguelfrde@users.noreply.github.com [fuchsia] Remove now unnecessary diagnostics directory (flutter/engine#51180)
2024-03-05 bdero@google.com [Impeller] Enable depth buffer clipping & Stencil-then-Cover path rendering. (flutter/engine#50856)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-engine-flutter-autoroll
Please CC rmistry@google.com,zra@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
knopp added a commit to knopp/engine that referenced this pull request Mar 5, 2024
knopp added a commit to knopp/engine that referenced this pull request Mar 13, 2024
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