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  • In CanvasPath::transform/shift, copy the source path into the target SkPathBuilder and then execute the transform within the SkPathBuilder
  • Obtain SkPath snapshots through CanvasPath::path, which will cache the SkPath within a DlPath

See #178395

…I migration

* In CanvasPath::transform/shift, copy the source path into the target
  SkPathBuilder and then execute the transform within the SkPathBuilder
* Obtain SkPath snapshots through CanvasPath::path, which will cache
  the SkPath within a DlPath

See flutter#178395
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It looks like this pull request may not have tests. Please make sure to add tests or get an explicit test exemption before merging.

If you are not sure if you need tests, consider this rule of thumb: the purpose of a test is to make sure someone doesn't accidentally revert the fix. Ask yourself, is there anything in your PR that you feel it is important we not accidentally revert back to how it was before your fix?

Reviewers: Read the Tree Hygiene page and make sure this patch meets those guidelines before LGTMing. If you believe this PR qualifies for a test exemption, contact "@test-exemption-reviewer" in the #hackers channel in Discord (don't just cc them here, they won't see it!). The test exemption team is a small volunteer group, so all reviewers should feel empowered to ask for tests, without delegating that responsibility entirely to the test exemption group.

@github-actions github-actions bot added the engine flutter/engine related. See also e: labels. label Nov 14, 2025
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Code Review

This pull request introduces several optimizations to CanvasPath to reduce data copying, aligning with the ongoing SkPathBuilder API migration. The changes primarily involve leveraging a cached SkPath via the path() method to avoid redundant snapshots in operations like addPath and op. Additionally, the shift and transform methods have been refactored to perform more efficient in-place modifications on a copied SkPathBuilder, rather than creating intermediate path objects. These changes improve performance and also fix a minor bug by removing an incorrect resetVolatility() call. The implementation is clean and consistent.

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Testing: this is a performance improvement with no change in behavior

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lgtm!

@jason-simmons jason-simmons added the autosubmit Merge PR when tree becomes green via auto submit App label Nov 17, 2025
@auto-submit auto-submit bot added this pull request to the merge queue Nov 17, 2025
Merged via the queue into flutter:master with commit c5c9cc6 Nov 17, 2025
186 checks passed
@flutter-dashboard flutter-dashboard bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Nov 17, 2025
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Nov 17, 2025
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Nov 17, 2025
auto-submit bot pushed a commit to flutter/packages that referenced this pull request Nov 18, 2025
…#10455)

Manual roll Flutter from 9b5ad8031646 to cc14ef529014 (143 revisions)

Manual roll requested by [email protected]

flutter/flutter@9b5ad80...cc14ef5

2025-11-17 [email protected] [ Widget Preview ] Fix crash when `widget_preview_scaffold/.dart_tool` doesn't exist (flutter/flutter#178662)
2025-11-17 [email protected] Dev proxy correctly copy query parameters from original request (flutter/flutter#178162)
2025-11-17 [email protected] Roll Dart SDK from ac5942fe75d0 to cf94632d94a1 (1 revision) (flutter/flutter#178664)
2025-11-17 [email protected] Improve code quality `FlutterViewTest.java`  (flutter/flutter#178594)
2025-11-17 [email protected] Roll customer tests (flutter/flutter#178652)
2025-11-17 [email protected] Corrects invalid Flutter wiki links (flutter/flutter#178158)
2025-11-17 [email protected] Fix LateInitializationError in didChangeTextScaleFactor code example. (flutter/flutter#178375)
2025-11-17 [email protected] Roll Skia from d877de9fc23e to 84c83c0dfb4a (3 revisions) (flutter/flutter#178653)
2025-11-17 [email protected] Small refactor in `DartMessenger.java` to use method reference (flutter/flutter#178584)
2025-11-17 [email protected] fix typos in `PlatformChannel.java‎` docs (flutter/flutter#178589)
2025-11-17 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Enable UIScene Migration and update create templates (#178328)" (flutter/flutter#178665)
2025-11-17 [email protected] Remove unnecessary `String.valueOf` in `‎ListenableEditingState.java‎` (flutter/flutter#178597)
2025-11-17 [email protected] Update `Metadata.java‎` to use `getBytes` in a static context (flutter/flutter#178587)
2025-11-17 [email protected] Reduce the data copying in CanvasPath related to the SkPathBuilder API migration (flutter/flutter#178512)
2025-11-17 [email protected] Roll Packages from 799b62c to ce44ebb (10 revisions) (flutter/flutter#178649)
2025-11-17 [email protected] Enable UIScene Migration and update create templates (flutter/flutter#178328)
2025-11-17 [email protected] Roll Skia from 5fb44352b232 to d877de9fc23e (1 revision) (flutter/flutter#178647)
2025-11-17 [email protected] Revert "Separate copying dsym into its own target (#178261)" (flutter/flutter#178545)
2025-11-17 [email protected] [web] Reduce Skwasm test shards to 2 (flutter/flutter#178239)
2025-11-17 [email protected] Roll Dart SDK from ee793f732959 to ac5942fe75d0 (1 revision) (flutter/flutter#178637)
2025-11-17 [email protected] Roll Skia from b30859d35b89 to 5fb44352b232 (1 revision) (flutter/flutter#178636)
2025-11-17 [email protected] Roll Skia from 5b7f8f61528e to b30859d35b89 (1 revision) (flutter/flutter#178634)
2025-11-17 [email protected] Roll Skia from aad0515710a9 to 5b7f8f61528e (7 revisions) (flutter/flutter#178631)
2025-11-17 [email protected] Roll Skia from 761e1fe67e15 to aad0515710a9 (1 revision) (flutter/flutter#178624)
2025-11-16 [email protected] Roll Skia from 5f9157717150 to 761e1fe67e15 (1 revision) (flutter/flutter#178614)
2025-11-16 [email protected] Roll Skia from 1b435b65e754 to 5f9157717150 (1 revision) (flutter/flutter#178612)
2025-11-16 [email protected] Roll Dart SDK from dffc5f3f9be6 to ee793f732959 (1 revision) (flutter/flutter#178607)
2025-11-16 [email protected] Roll Skia from ce2168cf2b6c to 1b435b65e754 (1 revision) (flutter/flutter#178604)
2025-11-15 [email protected] Roll Dart SDK from 50eca21d80c4 to dffc5f3f9be6 (1 revision) (flutter/flutter#178603)
2025-11-15 [email protected] [macOS] Implement dialog window (flutter/flutter#176893)
2025-11-15 [email protected] Roll Dart SDK from f6f88ed5e5a1 to 50eca21d80c4 (1 revision) (flutter/flutter#178599)
2025-11-15 [email protected] Roll Dart SDK from 9eda5b525ca9 to f6f88ed5e5a1 (1 revision) (flutter/flutter#178576)
2025-11-15 [email protected] Roll Skia from c5c3399b3a84 to ce2168cf2b6c (1 revision) (flutter/flutter#178577)
2025-11-15 [email protected] Add a `RepeatingAnimationBuilder` API (flutter/flutter#174014)
2025-11-15 [email protected] Roll Dart SDK from 486be9c17488 to 9eda5b525ca9 (1 revision) (flutter/flutter#178562)
2025-11-15 [email protected] Roll Skia from f5d29842bf45 to c5c3399b3a84 (1 revision) (flutter/flutter#178559)
2025-11-14 [email protected] Roll Skia from f58b1b8052a2 to f5d29842bf45 (3 revisions) (flutter/flutter#178556)
2025-11-14 [email protected] Roll Dart SDK from c6c5f6c169a9 to 486be9c17488 (1 revision) (flutter/flutter#178555)
2025-11-14 [email protected] [ Widget Preview ] Gracefully handle unexpected analysis context disposal (flutter/flutter#178550)
2025-11-14 [email protected] docs: Add documentation for running devicelab tests in a PR (flutter/flutter#178554)
2025-11-14 [email protected] [Reland] Generate new Gradle lockfiles and delete ignore files (flutter/flutter#178553)
2025-11-14 [email protected] Fix crash when doing a SaveLayer under a non-invertible transform (flutter/flutter#178507)
2025-11-14 [email protected] [Reland] Generate ignore lockfiles and Update Android Embedder Dependencies (flutter/flutter#178538)
2025-11-14 [email protected] Roll Skia from 4c02d9fc79c1 to f58b1b8052a2 (1 revision) (flutter/flutter#178543)
...
IvoneDjaja pushed a commit to IvoneDjaja/flutter that referenced this pull request Nov 22, 2025
…I migration (flutter#178512)

* In CanvasPath::transform/shift, copy the source path into the target
SkPathBuilder and then execute the transform within the SkPathBuilder
* Obtain SkPath snapshots through CanvasPath::path, which will cache the
SkPath within a DlPath

See flutter#178395
mboetger pushed a commit to mboetger/flutter that referenced this pull request Dec 2, 2025
…I migration (flutter#178512)

* In CanvasPath::transform/shift, copy the source path into the target
SkPathBuilder and then execute the transform within the SkPathBuilder
* Obtain SkPath snapshots through CanvasPath::path, which will cache the
SkPath within a DlPath

See flutter#178395
reidbaker pushed a commit to AbdeMohlbi/flutter that referenced this pull request Dec 10, 2025
…I migration (flutter#178512)

* In CanvasPath::transform/shift, copy the source path into the target
SkPathBuilder and then execute the transform within the SkPathBuilder
* Obtain SkPath snapshots through CanvasPath::path, which will cache the
SkPath within a DlPath

See flutter#178395
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