Enables fragment shader test for impeller (fixes mat2 on vulkan)#181013
Conversation
There was a problem hiding this comment.
Code Review
This pull request enables a fragment shader test for Impeller by fixing an issue with mat2 reflection on Vulkan. The core change is in reflector.cc, where logic is added to correctly handle mat2 types according to std140 layout rules. This is supported by a new unit test and a corresponding fragment shader. Additionally, some Dart tests are now enabled for Impeller, with one being skipped on Metal as it's not yet supported. The code quality is also improved with better documentation and consistent styling. The changes are well-structured and effectively address the issue. I have one minor suggestion to improve code readability.
walley892
left a comment
There was a problem hiding this comment.
Wild. Main thing is it would be nice to have another test with the fragment shader stuff.
walley892
left a comment
There was a problem hiding this comment.
Very slick programming by steamboat willie
|
autosubmit label was removed for flutter/flutter/181013, because - The status or check suite Linux linux_license has failed. Please fix the issues identified (or deflake) before re-applying this label. |
|
autosubmit label was removed for flutter/flutter/181013, because - The status or check suite Mac mac_unopt has failed. Please fix the issues identified (or deflake) before re-applying this label. |
Roll Flutter from 48c2475 to bfc9041eb118 (173 revisions) flutter/flutter@48c2475...bfc9041 2026-01-23 matt.kosarek@canonical.com No longer exiting the application when the RegularWindow is destroyed + resolving the window created promise after runWidget (flutter/flutter#181339) 2026-01-23 kazbek.sultanov.doc@gmail.com Remove unnecessary Material import from dialog_test.dart (flutter/flutter#181249) 2026-01-23 engine-flutter-autoroll@skia.org Roll Skia from 8e516fe6828f to db10db8bd55f (1 revision) (flutter/flutter#181379) 2026-01-23 50643541+Mairramer@users.noreply.github.com Reset TextFormField to initial value after state change (flutter/flutter#181199) 2026-01-23 engine-flutter-autoroll@skia.org Roll Dart SDK from 980b2b41d36e to e82d7ad1855e (1 revision) (flutter/flutter#181375) 2026-01-23 engine-flutter-autoroll@skia.org Roll Skia from 3e86f377d300 to 8e516fe6828f (4 revisions) (flutter/flutter#181370) 2026-01-23 kazbek.sultanov.doc@gmail.com Remove unnecessary Material import from sliver_visibility_test (flutter/flutter#181248) 2026-01-23 43635580+Lilian-C@users.noreply.github.com Add bottom navigation bar item semantics label (flutter/flutter#180577) 2026-01-23 58190796+MitchellGoodwin@users.noreply.github.com Make topGap not required for CupertinoSheetTransition (flutter/flutter#181269) 2026-01-23 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from b4cLyhuxciUC-4zCJ... to n7NohL9DPpEuPjNt9... (flutter/flutter#181365) 2026-01-23 engine-flutter-autoroll@skia.org Roll Dart SDK from 806f04638561 to 980b2b41d36e (1 revision) (flutter/flutter#181364) 2026-01-23 34871572+gmackall@users.noreply.github.com Reland hybrid views test (flutter/flutter#181336) 2026-01-23 git@reb0.org Revert DropdownMenu non-nullable breaking change (flutter/flutter#181074) 2026-01-23 dkwingsmt@users.noreply.github.com Fix leaks in `flutter_test` tests (flutter/flutter#180879) 2026-01-23 97480502+b-luk@users.noreply.github.com Re-enable fragment_shader_tests.dart 'Shader Compiler appropriately pads vec3 uniform arrays' test on Vulkan (flutter/flutter#181292) 2026-01-23 bkonyi@google.com [ Tool ] Fix `update-packages` failing due to mismatched dependencies between flutter_tools and the framework (flutter/flutter#181335) 2026-01-23 jason-simmons@users.noreply.github.com [Impeller] Make dynamically created shader metadata for runtime effects consistent with metadata for built-in shaders (flutter/flutter#181201) 2026-01-23 97480502+b-luk@users.noreply.github.com Broaden the applicability of `Color` fix_data rules from flutter/painting.dart (flutter/flutter#181093) 2026-01-23 15619084+vashworth@users.noreply.github.com Fixes macOS App.framework not being codesigned or find framework (flutter/flutter#181348) 2026-01-22 69134234+sutes-work@users.noreply.github.com Roll Fuchsia GN SDK from NAEC5tfgSl8g94nwp... to JLBh4Z9PKsjIJcqDU... (flutter/flutter#181139) 2026-01-22 engine-flutter-autoroll@skia.org Roll Dart SDK from ab4640ea82e9 to 806f04638561 (2 revisions) (flutter/flutter#181347) 2026-01-22 sokolovskyi.konstantin@gmail.com Add ExpansibleController.toggle method. (flutter/flutter#181320) 2026-01-22 42980667+srivats22@users.noreply.github.com Fixes Typo in codebase (flutter/flutter#181256) 2026-01-22 engine-flutter-autoroll@skia.org Roll Skia from 4766615bcc96 to 3e86f377d300 (3 revisions) (flutter/flutter#181346) 2026-01-22 ahmedsameha1@gmail.com Make sure that a Hero doesn't crash in 0x0 environment (flutter/flutter#180954) 2026-01-22 jason-simmons@users.noreply.github.com Reland "Fix capitalization of the path to FlutterWindowControllerTest.mm in the macOS platform build script" (flutter/flutter#181200) 2026-01-22 engine-flutter-autoroll@skia.org Roll Skia from 6e9746be8c4a to 4766615bcc96 (3 revisions) (flutter/flutter#181331) 2026-01-22 kazbek.sultanov.doc@gmail.com Fix remove material import textfield (flutter/flutter#181254) 2026-01-22 15619084+vashworth@users.noreply.github.com Add FlutterFramework as an Xcode SwiftPM local package override (flutter/flutter#179512) 2026-01-22 engine-flutter-autoroll@skia.org Roll Dart SDK from 7bd4c68b625c to ab4640ea82e9 (1 revision) (flutter/flutter#181324) 2026-01-22 engine-flutter-autoroll@skia.org Roll Packages from d80c60e to 9010299 (9 revisions) (flutter/flutter#181323) 2026-01-22 engine-flutter-autoroll@skia.org Roll Dart SDK from 2d53a77adc5d to 7bd4c68b625c (2 revisions) (flutter/flutter#181316) 2026-01-22 engine-flutter-autoroll@skia.org Roll Skia from 3f6949bc5780 to 6e9746be8c4a (2 revisions) (flutter/flutter#181311) 2026-01-22 engine-flutter-autoroll@skia.org Roll Skia from ef6efc358b4a to 3f6949bc5780 (2 revisions) (flutter/flutter#181307) 2026-01-22 engine-flutter-autoroll@skia.org Roll Dart SDK from 5d7c8faf2e41 to 2d53a77adc5d (1 revision) (flutter/flutter#181305) 2026-01-22 120639059+Enderjua@users.noreply.github.com [Material] update hourFormat to use Dart 3 switch expression (flutter/flutter#181041) 2026-01-22 146823759+brahim-guaali@users.noreply.github.com Use null-aware elements in cupertino/nav_bar.dart (flutter/flutter#181237) 2026-01-22 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from b2KIEXVAlEqImQ9VO... to b4cLyhuxciUC-4zCJ... (flutter/flutter#181297) 2026-01-22 137456488+flutter-pub-roller-bot@users.noreply.github.com Roll pub packages (flutter/flutter#181295) 2026-01-22 30870216+gaaclarke@users.noreply.github.com Enables fragment shader test for impeller (fixes mat2 on vulkan) (flutter/flutter#181013) 2026-01-21 engine-flutter-autoroll@skia.org Roll Dart SDK from 366200db1aa1 to 5d7c8faf2e41 (4 revisions) (flutter/flutter#181290) 2026-01-21 engine-flutter-autoroll@skia.org Roll Skia from b5ec89e31f59 to ef6efc358b4a (19 revisions) (flutter/flutter#181289) 2026-01-21 brackenavaron@gmail.com fix description for semantics finders (flutter/flutter#181214) 2026-01-21 ahmedsameha1@gmail.com Make sure that an Icon doesn't crash in 0x0 environment (flutter/flutter#181021) 2026-01-21 ahmedsameha1@gmail.com Make sure that a GridPaper doesn't crash in 0x0 environment (flutter/flutter#180906) 2026-01-21 magder@google.com Bring Linux coverage out of bringup (flutter/flutter#181280) ...
…tter#181013) This rearranges the packing of mat2 fields in structs which was causing an existing fragment shader test to fail. The test still doesn't work on Metal, but this PR fixes it for Vulkan. I suspect the fix for metal may be similar but since the uniforms aren't in a virtual struct the code isn't hitting this fix. issue: flutter#180873 ## 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], 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]. **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 [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
…tter#181013) This rearranges the packing of mat2 fields in structs which was causing an existing fragment shader test to fail. The test still doesn't work on Metal, but this PR fixes it for Vulkan. I suspect the fix for metal may be similar but since the uniforms aren't in a virtual struct the code isn't hitting this fix. issue: flutter#180873 ## 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], 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]. **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 [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
Reland `Enabled some disabled impeller fragment shader dart tests` (flutter#180788) relands flutter#180759 changes since revert: 1) waits for async tests now 1) keeps 2 tests that don't pass on impeller disabled - [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], 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]. **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 [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 Enables fragment shader test for impeller (fixes mat2 on vulkan) (flutter#181013) This rearranges the packing of mat2 fields in structs which was causing an existing fragment shader test to fail. The test still doesn't work on Metal, but this PR fixes it for Vulkan. I suspect the fix for metal may be similar but since the uniforms aren't in a virtual struct the code isn't hitting this fix. issue: flutter#180873 - [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], 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]. **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 [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 Account for vec3 padding in Metal (flutter#181563) Re-landing of flutter#181340 incorporating flutter#181550. Vec3 uniforms on the metal backend are vec4-aligned. This PR accounts for that padding. --------- Co-authored-by: gaaclarke <30870216+gaaclarke@users.noreply.github.com> Fixes getUniformX for Vulkan (flutter#181286) Does what it says on the tin! This PR adds struct member information to the runtime flatbuffer format. This allows dart code to introspect structs at runtime. Also modifies the runtime_stage tests to verify formats for all supported uniform types. Bubbles up struct member information to dart, and uses that information to grab struct members in `getUniformX` related functions. This is necessary on Vulkan because all uniforms are packaged into a single struct. Also re-enables tests - [ ] 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], including [Features we expect every widget to implement]. - [ ] I signed the [CLA]. - [ ] I listed at least one issue that this PR fixes in the description above. - [ ] I updated/added relevant documentation (doc comments with `///`). - [ ] I added new tests to check the change I am making, or this PR is [test-exempt]. - [ ] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [ ] All existing and new tests are passing. Organize and update fragment shader uniform tests. (flutter#181822) Adds more comprehensive testing for setFloat and getUniform* on fragment shaders. Deletes redundant tests. Fixes getUniformVecX indexing errors. Update web ui fragment shader tests (flutter#181877) Adds a bunch of tests for uniform setting functionality for custom fragment shaders on the web. Deletes redundant tests. Fixes a discovered issue in the uniform offset calculation. We were previously using the `location`, which is the integer offset of the uniform, not the offset in floats.
Reland `Enabled some disabled impeller fragment shader dart tests` (flutter#180788) relands flutter#180759 changes since revert: 1) waits for async tests now 1) keeps 2 tests that don't pass on impeller disabled - [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], 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]. **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 [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 Enables fragment shader test for impeller (fixes mat2 on vulkan) (flutter#181013) This rearranges the packing of mat2 fields in structs which was causing an existing fragment shader test to fail. The test still doesn't work on Metal, but this PR fixes it for Vulkan. I suspect the fix for metal may be similar but since the uniforms aren't in a virtual struct the code isn't hitting this fix. issue: flutter#180873 - [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], 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]. **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 [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 Account for vec3 padding in Metal (flutter#181563) Re-landing of flutter#181340 incorporating flutter#181550. Vec3 uniforms on the metal backend are vec4-aligned. This PR accounts for that padding. --------- Co-authored-by: gaaclarke <30870216+gaaclarke@users.noreply.github.com> Fixes getUniformX for Vulkan (flutter#181286) Does what it says on the tin! This PR adds struct member information to the runtime flatbuffer format. This allows dart code to introspect structs at runtime. Also modifies the runtime_stage tests to verify formats for all supported uniform types. Bubbles up struct member information to dart, and uses that information to grab struct members in `getUniformX` related functions. This is necessary on Vulkan because all uniforms are packaged into a single struct. Also re-enables tests - [ ] 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], including [Features we expect every widget to implement]. - [ ] I signed the [CLA]. - [ ] I listed at least one issue that this PR fixes in the description above. - [ ] I updated/added relevant documentation (doc comments with `///`). - [ ] I added new tests to check the change I am making, or this PR is [test-exempt]. - [ ] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [ ] All existing and new tests are passing. Organize and update fragment shader uniform tests. (flutter#181822) Adds more comprehensive testing for setFloat and getUniform* on fragment shaders. Deletes redundant tests. Fixes getUniformVecX indexing errors. Update web ui fragment shader tests (flutter#181877) Adds a bunch of tests for uniform setting functionality for custom fragment shaders on the web. Deletes redundant tests. Fixes a discovered issue in the uniform offset calculation. We were previously using the `location`, which is the integer offset of the uniform, not the offset in floats.
) Roll Flutter from 48c2475 to bfc9041eb118 (173 revisions) flutter/flutter@48c2475...bfc9041 2026-01-23 matt.kosarek@canonical.com No longer exiting the application when the RegularWindow is destroyed + resolving the window created promise after runWidget (flutter/flutter#181339) 2026-01-23 kazbek.sultanov.doc@gmail.com Remove unnecessary Material import from dialog_test.dart (flutter/flutter#181249) 2026-01-23 engine-flutter-autoroll@skia.org Roll Skia from 8e516fe6828f to db10db8bd55f (1 revision) (flutter/flutter#181379) 2026-01-23 50643541+Mairramer@users.noreply.github.com Reset TextFormField to initial value after state change (flutter/flutter#181199) 2026-01-23 engine-flutter-autoroll@skia.org Roll Dart SDK from 980b2b41d36e to e82d7ad1855e (1 revision) (flutter/flutter#181375) 2026-01-23 engine-flutter-autoroll@skia.org Roll Skia from 3e86f377d300 to 8e516fe6828f (4 revisions) (flutter/flutter#181370) 2026-01-23 kazbek.sultanov.doc@gmail.com Remove unnecessary Material import from sliver_visibility_test (flutter/flutter#181248) 2026-01-23 43635580+Lilian-C@users.noreply.github.com Add bottom navigation bar item semantics label (flutter/flutter#180577) 2026-01-23 58190796+MitchellGoodwin@users.noreply.github.com Make topGap not required for CupertinoSheetTransition (flutter/flutter#181269) 2026-01-23 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from b4cLyhuxciUC-4zCJ... to n7NohL9DPpEuPjNt9... (flutter/flutter#181365) 2026-01-23 engine-flutter-autoroll@skia.org Roll Dart SDK from 806f04638561 to 980b2b41d36e (1 revision) (flutter/flutter#181364) 2026-01-23 34871572+gmackall@users.noreply.github.com Reland hybrid views test (flutter/flutter#181336) 2026-01-23 git@reb0.org Revert DropdownMenu non-nullable breaking change (flutter/flutter#181074) 2026-01-23 dkwingsmt@users.noreply.github.com Fix leaks in `flutter_test` tests (flutter/flutter#180879) 2026-01-23 97480502+b-luk@users.noreply.github.com Re-enable fragment_shader_tests.dart 'Shader Compiler appropriately pads vec3 uniform arrays' test on Vulkan (flutter/flutter#181292) 2026-01-23 bkonyi@google.com [ Tool ] Fix `update-packages` failing due to mismatched dependencies between flutter_tools and the framework (flutter/flutter#181335) 2026-01-23 jason-simmons@users.noreply.github.com [Impeller] Make dynamically created shader metadata for runtime effects consistent with metadata for built-in shaders (flutter/flutter#181201) 2026-01-23 97480502+b-luk@users.noreply.github.com Broaden the applicability of `Color` fix_data rules from flutter/painting.dart (flutter/flutter#181093) 2026-01-23 15619084+vashworth@users.noreply.github.com Fixes macOS App.framework not being codesigned or find framework (flutter/flutter#181348) 2026-01-22 69134234+sutes-work@users.noreply.github.com Roll Fuchsia GN SDK from NAEC5tfgSl8g94nwp... to JLBh4Z9PKsjIJcqDU... (flutter/flutter#181139) 2026-01-22 engine-flutter-autoroll@skia.org Roll Dart SDK from ab4640ea82e9 to 806f04638561 (2 revisions) (flutter/flutter#181347) 2026-01-22 sokolovskyi.konstantin@gmail.com Add ExpansibleController.toggle method. (flutter/flutter#181320) 2026-01-22 42980667+srivats22@users.noreply.github.com Fixes Typo in codebase (flutter/flutter#181256) 2026-01-22 engine-flutter-autoroll@skia.org Roll Skia from 4766615bcc96 to 3e86f377d300 (3 revisions) (flutter/flutter#181346) 2026-01-22 ahmedsameha1@gmail.com Make sure that a Hero doesn't crash in 0x0 environment (flutter/flutter#180954) 2026-01-22 jason-simmons@users.noreply.github.com Reland "Fix capitalization of the path to FlutterWindowControllerTest.mm in the macOS platform build script" (flutter/flutter#181200) 2026-01-22 engine-flutter-autoroll@skia.org Roll Skia from 6e9746be8c4a to 4766615bcc96 (3 revisions) (flutter/flutter#181331) 2026-01-22 kazbek.sultanov.doc@gmail.com Fix remove material import textfield (flutter/flutter#181254) 2026-01-22 15619084+vashworth@users.noreply.github.com Add FlutterFramework as an Xcode SwiftPM local package override (flutter/flutter#179512) 2026-01-22 engine-flutter-autoroll@skia.org Roll Dart SDK from 7bd4c68b625c to ab4640ea82e9 (1 revision) (flutter/flutter#181324) 2026-01-22 engine-flutter-autoroll@skia.org Roll Packages from d80c60e to 9010299 (9 revisions) (flutter/flutter#181323) 2026-01-22 engine-flutter-autoroll@skia.org Roll Dart SDK from 2d53a77adc5d to 7bd4c68b625c (2 revisions) (flutter/flutter#181316) 2026-01-22 engine-flutter-autoroll@skia.org Roll Skia from 3f6949bc5780 to 6e9746be8c4a (2 revisions) (flutter/flutter#181311) 2026-01-22 engine-flutter-autoroll@skia.org Roll Skia from ef6efc358b4a to 3f6949bc5780 (2 revisions) (flutter/flutter#181307) 2026-01-22 engine-flutter-autoroll@skia.org Roll Dart SDK from 5d7c8faf2e41 to 2d53a77adc5d (1 revision) (flutter/flutter#181305) 2026-01-22 120639059+Enderjua@users.noreply.github.com [Material] update hourFormat to use Dart 3 switch expression (flutter/flutter#181041) 2026-01-22 146823759+brahim-guaali@users.noreply.github.com Use null-aware elements in cupertino/nav_bar.dart (flutter/flutter#181237) 2026-01-22 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from b2KIEXVAlEqImQ9VO... to b4cLyhuxciUC-4zCJ... (flutter/flutter#181297) 2026-01-22 137456488+flutter-pub-roller-bot@users.noreply.github.com Roll pub packages (flutter/flutter#181295) 2026-01-22 30870216+gaaclarke@users.noreply.github.com Enables fragment shader test for impeller (fixes mat2 on vulkan) (flutter/flutter#181013) 2026-01-21 engine-flutter-autoroll@skia.org Roll Dart SDK from 366200db1aa1 to 5d7c8faf2e41 (4 revisions) (flutter/flutter#181290) 2026-01-21 engine-flutter-autoroll@skia.org Roll Skia from b5ec89e31f59 to ef6efc358b4a (19 revisions) (flutter/flutter#181289) 2026-01-21 brackenavaron@gmail.com fix description for semantics finders (flutter/flutter#181214) 2026-01-21 ahmedsameha1@gmail.com Make sure that an Icon doesn't crash in 0x0 environment (flutter/flutter#181021) 2026-01-21 ahmedsameha1@gmail.com Make sure that a GridPaper doesn't crash in 0x0 environment (flutter/flutter#180906) 2026-01-21 magder@google.com Bring Linux coverage out of bringup (flutter/flutter#181280) ...
This rearranges the packing of mat2 fields in structs which was causing an existing fragment shader test to fail.
The test still doesn't work on Metal, but this PR fixes it for Vulkan. I suspect the fix for metal may be similar but since the uniforms aren't in a virtual struct the code isn't hitting this fix.
issue: #180873
Pre-launch Checklist
///).If you need help, consider asking for advice on the #hackers-new channel on Discord.
Note: The Flutter team is currently trialing the use of Gemini Code Assist for GitHub. Comments from the
gemini-code-assistbot 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.