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Removed heap allocations for conical, radial and sweep gradients #57143

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Dec 11, 2024

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fixes flutter/flutter#154650

Pre-launch Checklist

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  • 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.
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@@ -35,15 +35,23 @@ class DlConicalGradientColorSource final : public DlGradientColorSourceBase {
bool equals_(DlColorSource const& other) const override;

private:
template <typename Colors>
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These constructors are so huge but have basically zero logic so I decided not to duplicate them and instead use a template to avoid any sort of bugs where they get out of sync.

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SGTM

@gaaclarke gaaclarke marked this pull request as ready for review December 11, 2024 22:36
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LGTM

@gaaclarke gaaclarke merged commit 92de3d0 into flutter:main Dec 11, 2024
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engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Dec 12, 2024
github-merge-queue bot pushed a commit to flutter/flutter that referenced this pull request Dec 12, 2024
…160132)

flutter/engine@e352461...92de3d0

2024-12-11 [email protected] Removed heap
allocations for conical, radial and sweep gradients
(flutter/engine#57143)

If this roll has caused a breakage, revert this CL and stop the roller
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Please CC [email protected],[email protected] on the revert to
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nick9822 pushed a commit to nick9822/flutter that referenced this pull request Dec 18, 2024
…tter/engine#57143)

fixes flutter#154650

## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide] and the [C++,
Objective-C, Java style guides].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] 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.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I signed the [CLA].
- [x] All existing and new tests are passing.

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

<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/flutter/blob/master/docs/contributing/Tree-hygiene.md#overview
[Tree Hygiene]:
https://github.com/flutter/flutter/blob/master/docs/contributing/Tree-hygiene.md
[test-exempt]:
https://github.com/flutter/flutter/blob/master/docs/contributing/Tree-hygiene.md#tests
[Flutter Style Guide]:
https://github.com/flutter/flutter/blob/master/docs/contributing/Style-guide-for-Flutter-repo.md
[C++, Objective-C, Java style guides]:
https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style
[testing the engine]:
https://github.com/flutter/engine/blob/main/docs/testing/Testing-the-engine.md
[CLA]: https://cla.developers.google.com/
[flutter/tests]: https://github.com/flutter/tests
[breaking change policy]:
https://github.com/flutter/flutter/blob/master/docs/contributing/Tree-hygiene.md#handling-breaking-changes
[Discord]:
https://github.com/flutter/flutter/blob/master/docs/contributing/Chat.md
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Eliminate heap allocations for gradient color conversions
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