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Turned on impeller by default on macos#186546

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gaaclarke:macos-impeller-by-default
May 28, 2026
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Turned on impeller by default on macos#186546
auto-submit[bot] merged 1 commit into
flutter:masterfrom
gaaclarke:macos-impeller-by-default

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@gaaclarke

@gaaclarke gaaclarke commented May 14, 2026

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fixes #183045

Pre-launch Checklist

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

If this change needs to override an active code freeze, provide a comment explaining why. The code freeze workflow can be overridden by code reviewers. See pinned issues for any active code freezes with guidance.

Note: The Flutter team is currently trialing the use of Gemini Code Assist for GitHub. Comments from the gemini-code-assist bot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed.

@flutter-dashboard flutter-dashboard Bot added the CICD Run CI/CD label May 14, 2026
@github-actions github-actions Bot added engine flutter/engine related. See also e: labels. platform-macos Building on or for macOS specifically a: desktop Running on desktop team-macos Owned by the macOS platform team labels May 14, 2026
@gaaclarke gaaclarke force-pushed the macos-impeller-by-default branch from 30b23fb to f49d6fe Compare May 27, 2026 21:06
@gaaclarke gaaclarke marked this pull request as ready for review May 27, 2026 21:07
@gaaclarke gaaclarke requested a review from a team as a code owner May 27, 2026 21:07
@gaaclarke gaaclarke requested review from flar and walley892 May 27, 2026 21:07

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Code Review

This pull request enables Impeller by default on macOS by updating the default return value of enableImpeller to YES in FlutterDartProject.mm. It also updates the hello_world_impeller_macos_sdfs devicelab task to run without the explicit --enable-impeller flag. A formatting issue was identified in the Dart test file where a line exceeds the length limit and needs to be wrapped to comply with the style guide.

'run',
options: <String>['--enable-impeller', '-d', 'macos'],
);
final Process process = await startFlutter('run', options: <String>['-d', 'macos']);

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medium

This line exceeds the 80-character limit and will be wrapped by dart format. Please format it to comply with the style guide and avoid CI failures.

Suggested change
final Process process = await startFlutter('run', options: <String>['-d', 'macos']);
final Process process = await startFlutter(
'run',
options: <String>['-d', 'macos'],
);
References
  1. All Dart code is formatted using dart format. This is enforced by CI. (link)

@github-actions github-actions Bot removed the CICD Run CI/CD label May 27, 2026

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lgtm_clap.mp4

@jtmcdole jtmcdole added the CICD Run CI/CD label May 27, 2026

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LGTM

@gaaclarke gaaclarke added the autosubmit Merge PR when tree becomes green via auto submit App label May 28, 2026
@auto-submit auto-submit Bot added this pull request to the merge queue May 28, 2026
Merged via the queue into flutter:master with commit 543b75f May 28, 2026
207 checks passed
@flutter-dashboard flutter-dashboard Bot removed the autosubmit Merge PR when tree becomes green via auto submit App label May 28, 2026
auto-submit Bot pushed a commit to flutter/packages that referenced this pull request May 29, 2026
flutter/flutter@e70534d...b05a9d7

2026-05-29 engine-flutter-autoroll@skia.org Roll Skia from 47155534833e to d9d6b440c4e7 (1 revision) (flutter/flutter#187301)
2026-05-29 engine-flutter-autoroll@skia.org Roll Skia from f93ed13d77fb to 47155534833e (4 revisions) (flutter/flutter#187291)
2026-05-29 kevmoo@users.noreply.github.com [web_ui] Optimize skwasm text layout and path decoding to eliminate dynamic boxing churn under Wasm (flutter/flutter#186978)
2026-05-29 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from SBpmmPxqx3lAvGojE... to jMR_VXQi07kAk8vbR... (flutter/flutter#187279)
2026-05-29 burak.karahan@mail.ru Remove Material import from sliver tree rendering test (flutter/flutter#187000)
2026-05-29 bdero@google.com [Impeller] Remove the y_coord_scale Y-flip plumbing (flutter/flutter#187224)
2026-05-29 31859944+LongCatIsLooong@users.noreply.github.com Add/remove overlay child RenderObject from the tree in `attach`/`detach` (flutter/flutter#186564)
2026-05-29 engine-flutter-autoroll@skia.org Roll Skia from fcfe5975c945 to f93ed13d77fb (4 revisions) (flutter/flutter#187273)
2026-05-28 evanwall@buffalo.edu Handle complex RSE rendering in the uber SDF pipeline (flutter/flutter#186434)
2026-05-28 engine-flutter-autoroll@skia.org Roll Dart SDK from 082191101fcc to 683322426411 (2 revisions) (flutter/flutter#187270)
2026-05-28 mvincentong@gmail.com Clarify route transition animations (flutter/flutter#186552)
2026-05-28 116356835+AbdeMohlbi@users.noreply.github.com document that the default Key is null and explain proper usage in list diffing (flutter/flutter#185197)
2026-05-28 srawlins@google.com [flutter_tools] Use super parameters in missed spots (flutter/flutter#186197)
2026-05-28 mr_nadeem_iqbal@yahoo.com docs: Document MediaQueryData.alwaysUse24HourFormat on macOS, Windows, Linux, web (#160664) (flutter/flutter#186642)
2026-05-28 engine-flutter-autoroll@skia.org Roll Skia from 5493e4c144cd to fcfe5975c945 (3 revisions) (flutter/flutter#187256)
2026-05-28 30870216+gaaclarke@users.noreply.github.com Shares opengles golden context (flutter/flutter#187243)
2026-05-28 jason-simmons@users.noreply.github.com Update the Curl CIPD package in .ci.yaml to version 8.20.0 (flutter/flutter#187133)
2026-05-28 737941+loic-sharma@users.noreply.github.com Improve SizedBox's docs (flutter/flutter#187208)
2026-05-28 bdero@google.com [Impeller] Support instanced rendering across all backends (flutter/flutter#186653)
2026-05-28 43054281+camsim99@users.noreply.github.com [Android] Reset system UI visibility flags when setting edge-to-edge mode (flutter/flutter#187207)
2026-05-28 engine-flutter-autoroll@skia.org Roll Skia from a38708fb7926 to 5493e4c144cd (7 revisions) (flutter/flutter#187241)
2026-05-28 30870216+gaaclarke@users.noreply.github.com Turned on impeller by default on macos (flutter/flutter#186546)
2026-05-28 mvincentong@gmail.com Clarify lazy scroll extent docs (flutter/flutter#186864)
2026-05-28 mdebbar@google.com [web] Fix WebParagraph locales test (flutter/flutter#186813)
2026-05-28 engine-flutter-autoroll@skia.org Roll Packages from 4b424d7 to 10cbdc5 (3 revisions) (flutter/flutter#187238)
2026-05-28 engine-flutter-autoroll@skia.org Roll Dart SDK from f3db7b7d9801 to 082191101fcc (8 revisions) (flutter/flutter#187235)
2026-05-28 engine-flutter-autoroll@skia.org Roll Skia from 32acea791248 to a38708fb7926 (1 revision) (flutter/flutter#187221)
2026-05-28 bdero@google.com [Flutter GPU] Add r32Float and remove Apple-only XR pixel formats (flutter/flutter#187069)

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

To file a bug in Packages: 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
creatorpiyush pushed a commit to creatorpiyush/packages that referenced this pull request Jun 10, 2026
…r#11803)

flutter/flutter@e70534d...b05a9d7

2026-05-29 engine-flutter-autoroll@skia.org Roll Skia from 47155534833e to d9d6b440c4e7 (1 revision) (flutter/flutter#187301)
2026-05-29 engine-flutter-autoroll@skia.org Roll Skia from f93ed13d77fb to 47155534833e (4 revisions) (flutter/flutter#187291)
2026-05-29 kevmoo@users.noreply.github.com [web_ui] Optimize skwasm text layout and path decoding to eliminate dynamic boxing churn under Wasm (flutter/flutter#186978)
2026-05-29 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from SBpmmPxqx3lAvGojE... to jMR_VXQi07kAk8vbR... (flutter/flutter#187279)
2026-05-29 burak.karahan@mail.ru Remove Material import from sliver tree rendering test (flutter/flutter#187000)
2026-05-29 bdero@google.com [Impeller] Remove the y_coord_scale Y-flip plumbing (flutter/flutter#187224)
2026-05-29 31859944+LongCatIsLooong@users.noreply.github.com Add/remove overlay child RenderObject from the tree in `attach`/`detach` (flutter/flutter#186564)
2026-05-29 engine-flutter-autoroll@skia.org Roll Skia from fcfe5975c945 to f93ed13d77fb (4 revisions) (flutter/flutter#187273)
2026-05-28 evanwall@buffalo.edu Handle complex RSE rendering in the uber SDF pipeline (flutter/flutter#186434)
2026-05-28 engine-flutter-autoroll@skia.org Roll Dart SDK from 082191101fcc to 683322426411 (2 revisions) (flutter/flutter#187270)
2026-05-28 mvincentong@gmail.com Clarify route transition animations (flutter/flutter#186552)
2026-05-28 116356835+AbdeMohlbi@users.noreply.github.com document that the default Key is null and explain proper usage in list diffing (flutter/flutter#185197)
2026-05-28 srawlins@google.com [flutter_tools] Use super parameters in missed spots (flutter/flutter#186197)
2026-05-28 mr_nadeem_iqbal@yahoo.com docs: Document MediaQueryData.alwaysUse24HourFormat on macOS, Windows, Linux, web (#160664) (flutter/flutter#186642)
2026-05-28 engine-flutter-autoroll@skia.org Roll Skia from 5493e4c144cd to fcfe5975c945 (3 revisions) (flutter/flutter#187256)
2026-05-28 30870216+gaaclarke@users.noreply.github.com Shares opengles golden context (flutter/flutter#187243)
2026-05-28 jason-simmons@users.noreply.github.com Update the Curl CIPD package in .ci.yaml to version 8.20.0 (flutter/flutter#187133)
2026-05-28 737941+loic-sharma@users.noreply.github.com Improve SizedBox's docs (flutter/flutter#187208)
2026-05-28 bdero@google.com [Impeller] Support instanced rendering across all backends (flutter/flutter#186653)
2026-05-28 43054281+camsim99@users.noreply.github.com [Android] Reset system UI visibility flags when setting edge-to-edge mode (flutter/flutter#187207)
2026-05-28 engine-flutter-autoroll@skia.org Roll Skia from a38708fb7926 to 5493e4c144cd (7 revisions) (flutter/flutter#187241)
2026-05-28 30870216+gaaclarke@users.noreply.github.com Turned on impeller by default on macos (flutter/flutter#186546)
2026-05-28 mvincentong@gmail.com Clarify lazy scroll extent docs (flutter/flutter#186864)
2026-05-28 mdebbar@google.com [web] Fix WebParagraph locales test (flutter/flutter#186813)
2026-05-28 engine-flutter-autoroll@skia.org Roll Packages from 4b424d7 to 10cbdc5 (3 revisions) (flutter/flutter#187238)
2026-05-28 engine-flutter-autoroll@skia.org Roll Dart SDK from f3db7b7d9801 to 082191101fcc (8 revisions) (flutter/flutter#187235)
2026-05-28 engine-flutter-autoroll@skia.org Roll Skia from 32acea791248 to a38708fb7926 (1 revision) (flutter/flutter#187221)
2026-05-28 bdero@google.com [Flutter GPU] Add r32Float and remove Apple-only XR pixel formats (flutter/flutter#187069)

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

To file a bug in Packages: 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
via-guy pushed a commit to via-guy/flutter that referenced this pull request Jun 26, 2026
fixes flutter#183045

## Pre-launch Checklist

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there for submitting PRs.
- [x] I read the [AI contribution guidelines] and understand my
responsibilities, or I am not using AI tools.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.

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

If this change needs to override an active code freeze, provide a
comment explaining why. The code freeze workflow can be overridden by
code reviewers. See pinned issues for any active code freezes with
guidance.

**Note**: The Flutter team is currently trialing the use of [Gemini Code
Assist for
GitHub](https://developers.google.com/gemini-code-assist/docs/review-github-code).
Comments from the `gemini-code-assist` bot should not be taken as
authoritative feedback from the Flutter team. If you find its comments
useful you can update your code accordingly, but if you are unsure or
disagree with the feedback, please feel free to wait for a Flutter team
member's review for guidance on which automated comments should be
addressed.

<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview
[AI contribution guidelines]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#ai-contribution-guidelines
[Tree Hygiene]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md
[test-exempt]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests
[Flutter Style Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md
[Features we expect every widget to implement]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement
[CLA]: https://cla.developers.google.com/
[flutter/tests]: https://github.com/flutter/tests
[breaking change policy]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes
[Discord]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md
[Data Driven Fixes]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
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a: desktop Running on desktop CICD Run CI/CD engine flutter/engine related. See also e: labels. platform-macos Building on or for macOS specifically team-macos Owned by the macOS platform team

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Set Impeller as the default renderer on macOS

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