31465 Commits

Author SHA1 Message Date
Jim Graham
7e5f1053e9
[Impeller] Fix perspective clips with a large perspective bias (#181434)
Fixes: https://github.com/flutter/flutter/issues/173104

We were precomputing the perspective adjustment inside the clipping
vertex shader, which prevented the GPU from performing correct clipping
against the camera plane.
2026-01-24 05:43:20 +00:00
Jim Graham
42d0a3de52
[Impeller] Fix interpolation error in Rect::TransformAndClipBounds (#181420)
We had been interpolating the points backwards in the
`Rect::TransformAndClipBounds` code.

When we transform a rectangle under a perspective transform, some of the
points may generate a homogenous bias (W) that is less than 0. This is a
special condition that means that the point was transformed "behind the
camera" (this is one way of looking at it and helps explain why we avoid
such values). In order for it to contribute properly to the bounds in
front of the "camera", it needs to be moved back into the positive (W>0)
space. We do this by interpolating from that out of bounds coordinate to
either of its adjacent neighbors which are in bounds (i.e. their W>0) to
move the point to a bias value that is just slightly in the "in bounds"
half-space - we choose W=(1/2^14) as our "in bounds" bias value.

Unfortunately, the code to interpolate the 2 coordinates was written
with conflicting definitions of which direction we computed the `t`
value and which direction we applied it to the 2 coordinates - thus
generating nonsensical values.

This turned up while debugging a fix for
https://github.com/flutter/flutter/issues/173104 where we fixed the
transform logic in the clip code, but the rectangle was still partially
clipped due to a bad result from the `GetCoverage` method of the rect
geometry code. Note that this fix alone does not correct the problem in
that Issue, it merely fixes a needed utility method that the fix will
rely on.
2026-01-24 00:03:14 +00:00
gaaclarke
71ec25bde7
Adds contents of keys file when a skia gold error occurs. (#181401)
in service of debugging flake
https://github.com/flutter/flutter/issues/181399

test exempt: is test

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2026-01-23 20:52:24 +00:00
b-luk
65701bd31b
Re-enable fragment_shader_tests.dart 'Shader Compiler appropriately pads vec3 uniform arrays' test on Vulkan (#181292)
- The
[shader](3b20617345/engine/src/flutter/lib/ui/fixtures/shaders/general_shaders/vec3_uniform.frag)
has `uniform vec3[4] color_array;` and sets `fragColor =
vec4(color_array[3].xyz, 1);`. Update the test to use the correct
indexes for `color_array[3]`: 9, 10, 11 instead of 12, 13, 14.
- Skip the test for metal. Metal seems like it has some weird index
padding issue. From testing it out:
- `color_array[0].xyz` is set when setting indexes 0, 1, 2, as expected.
- `color_array[1].xyz` should use indexes 3, 4, 5. But it seems to use
indexes 4, 5, 6. Maybe there's some incorrect math making it skip index
3.
- `color_array[2].xyz` should use indexes 6, 7, 8. But it seems to use
indexes 8, 9, 10. Maybe there's some incorrect math making it skip
indexes 3 and 7.
- `color_array[3].xyz` should use indexes 9, 10, 11. But it seems to be
impossible to set. Maybe it skips indexes 3, 7, and 11 and then tries to
look at out-of-bounds indexes 12, 13, 14?
- Fix incorrect logic in the `_expectShaderRendersColor()` method.
- The 4 bytes for each pixel of an image are in the format `0xRRGGBBAA`.
- This method used to use `renderedBytes.buffer.asUint32List()`. This
reads 4 bytes to a Uint32, but uses `Endian.host` endianness. Maybe this
differs on different platforms, but on my Mac this is little endian. So
the image's `0xRRGGBBAA` bytes are read into a Uint32 as `0xAABBGGRR`.
- This is then compared to the target `Color.value`, which is in ARGB32
format: `0xAARRGGBB`.
- So it's comparing the each image's pixel as `0xAABBGGRR` to the target
color as `0xAARRGGBB`. It switches the RR and BB channels for every
comparison.
- This did not result in any test failures because
`_expectShaderRendersColor()` is only ever used as a helper function for
`_expectShaderRendersGreen()` and `_expectShaderRendersBlack()`. And
(un)luckily, those perfectly ignore the RR and BB channels.
- Fix the logic by reading each pixel's bytes with separate `getUint8()`
calls and parsing them into a `Color` with `fromARGB()`, using the
correct byte offsets for each channel.

Partially addresses #180932. Re-enables the test for Vulkan, but it's
still disabled for Metal.

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2026-01-23 00:33:13 +00:00
Jason Simmons
8dc541ce30
[Impeller] Make dynamically created shader metadata for runtime effects consistent with metadata for built-in shaders (#181201)
* Set byte_length to the total byte length of all array elements
* The runtime stage flatbuffer will represent an unspecified
array_elements value as the default value of zero. Convert that to an
empty std::optional in the metadata.

Fixes https://github.com/flutter/flutter/issues/180068
2026-01-23 00:15:24 +00:00
b-luk
e13db189f2
Broaden the applicability of Color fix_data rules from flutter/painting.dart (#181093)
See the conversation at
https://github.com/dart-lang/sdk/issues/59764#issuecomment-3599823329
for more context.

Prior to this, these `Color` fix_data rules would only be visible to
users that explicitly import `package: flutter/painting.dart`. This PR
broadens the applicability of these rules so they are visible for users
that import `dart:ui`, or import any one of the `flutter/` packages that
expose `Color`.

#### Enabling `Color` fix_data fixes for `dart:ui`:
- Adds a `fix_data.yaml` file for `'dart:ui'` fixes to
`engine/src/flutter/lib/ui/`. This contains `Color` fixes copied from
`packages/flutter/lib/fix_data/fix_painting.yaml`.
- Typically `fix_data` files go in a Dart package's `lib/` directory.
But `dart:ui` is not a standard Dart package and doesn't have a typical
`lib` directory. This directory is the closest thing to a `lib`
directory for the `dart:ui` package that I can find. It contains the
Dart code that implements the `dart:ui` package.
- The actual Dart package for `dart:ui` is generated by
`engine/src/flutter/sky/packages/sky_engine/BUILD.gn` with the package
name `sky_engine`. I updated the build rule to copy the new
`fix_data.yaml` file into the generated `sky_engine/lib/` directory.

#### Enabling `Color` fix_data fixes for `package:flutter/` libraries:
- The `Color` fixes from
`packages/flutter/lib/fix_data/fix_painting.yaml` are remove, and copied
to over to a new `packages/flutter/lib/fix_data/fix_dart_ui.yaml` file.
- This fix_data file specifies all the `flutter/` libraries which export
`Color`. With this change, importing any of these libraries will surface
the `Color` fixes, rather than only surfacing the fixes only when
`package:flutter/painting.dart` is specifically imported.

#### Other related changes
- Updates some entries in `fix_cupertino.yaml` and `fix_material.yaml`
which used the old `Color.withOpacity` method.
- Updates existing flutter package `test_fixes` tests.
- The color tests from the `painting` `test_fixes` test are moved to a
new `dart_ui` test. Note that this only runs the test with only one of
the `flutter/` libraries specified in `fix_dart_ui.yaml`
(`animation.dart`). Ideally I think we should run this test while
independently importing each one of the `flutter/` libraries specified
in `fix_dart_ui.yaml`. But AFAICT there's no easy way to do this without
creating a lot of duplicate code.
- There is no `fix_data` test for `dart:ui`. Because this isn't a
standard Dart library, I don't think there's an easy way to test its
`fix_data.yaml` in a similar way to the `flutter/` library fixes.


Somewhat fixes #180933 (makes the fixes more broadly available).
Somewhat addresses
https://github.com/dart-lang/sdk/issues/59764#issuecomment-3599823329
(establishes a way to use `fix_data.yaml` files for `dart:X` libraries).

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2026-01-23 00:11:10 +00:00
sutes-work
6173c0dd81
Roll Fuchsia GN SDK from NAEC5tfgSl8g94nwp... to JLBh4Z9PKsjIJcqDU... (#181139)
and fix logging which has changed.

Bug: b/456458551

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This fixes the Fuchsia SDK roll which was blocked due to some logging
changes that were made.

This fixes internal bug b/456458551.

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Co-authored-by: zijiehe@ <68449066+zijiehe-google-com@users.noreply.github.com>
2026-01-22 23:33:56 +00:00
Jason Simmons
6c50f5605d
Reland "Fix capitalization of the path to FlutterWindowControllerTest.mm in the macOS platform build script" (#181200)
Also fixes clang-tidy warnings in that file.

Fixes https://github.com/flutter/flutter/issues/180963
2026-01-22 20:33:57 +00:00
gaaclarke
867339e934
Enables fragment shader test for impeller (fixes mat2 on vulkan) (#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: https://github.com/flutter/flutter/issues/180873

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2026-01-22 00:13:33 +00:00
Rusino
3b20617345
Fixing getPositionForOffset (#180913)
It had few bugs and also baseline APIs for WebParagraph were not
implemented (they make little sense but still)

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---------

Co-authored-by: Dmitry Grand <dmgr@google.com>
2026-01-21 20:25:58 +00:00
Mohellebi abdessalem
e9ec7d0e46
Remove unused UrlStringAttribute class (#181146)
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2026-01-21 18:30:10 +00:00
Kostia Sokolovskyi
697572a67c
[Android] Add display corner radii support. (#179219)
Closes https://github.com/flutter/flutter/issues/97349
Unblocks https://github.com/flutter/flutter/issues/178463

### Description

This PR focuses only on the Android side.

As was discussed in https://github.com/flutter/flutter/issues/97349, the
iOS API for getting display corner radii is private. The only safe way
to get the radii values is to generate a lookup table ahead and use its
values at runtime. I would be happy to work on the iOS implementation in
a separate PR after this lands.

- Adds `displayCornerRadii` in the physical pixels to the engine's
window metrics
- Adds `displayCornerRadii` support on the Android API 31+
- Adds `displayCornerRadii` in the logical pixels to the `MediaQuery`
- Adds and updates tests

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---------

Co-authored-by: Matt Boetger <matt.boetger@gmail.com>
2026-01-21 18:13:00 +00:00
bungeman
9c66d267b4
Use SkPathBuilder with SkPathMeasure::getSegment (#181205)
Migrate calls from the now deprecated SkPathMeasure::getSegment which
took SkPath to the new version of SkPathMeasure::getSegment which takes
SkPathBuilder.
2026-01-21 16:01:29 +00:00
Mohellebi abdessalem
d28a513d4c
Improve code quality in ViewUtils.java (#181147)
<img width="512" height="98" alt="Screenshot 2026-01-19 at 11 09 21"
src="https://github.com/user-attachments/assets/d2739ba7-7da8-494f-aded-079b50129a93"
/>

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2026-01-20 19:17:20 +00:00
Kaylee Lubick
ca81cdf9f9
[skia] Remove VMA from build logic (#181183)
Skia is disabling the automatic use of an internal Vulkan Memory
Allocator when no memory allocator is specified.

Flutter already [disables
VMA](ae5c3603d0/tools/gn (L615))
and uses `flutter::FlutterSkiaVulkanMemoryAllocator::Make` to handle
this memory. Thus, we can delete the GN logic (which is always off).

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2026-01-20 20:57:53 +00:00
Mohellebi abdessalem
e0d238e9f8
Remove unnecessary Integer.toString in FlutterShellArgs.java (#180993)
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2026-01-20 18:51:18 +00:00
Tong Mu
5d93b2e71b
Improve the algorithm for rounded superellipse paths to work better at very large ratio (#180453)
This PR uses a new algorithm that approximates the superellipse curve
with two conic curves, instead of one cubic curves. This algorithm works
much better at very large ratio. Fixes
https://github.com/flutter/flutter/issues/179875 .

A new playground is added in this PR to show enlarged corner of a
rounded superellipse at very large ratio and compares its path version
and filled version.

<details>
<summary>
For comparison: The best result possible with one cubic curve
</summary>

As the following video shows, the flat segment of the superellipse curve
is the hardest to approximate, since most of its curvature happens near
the right end. The best that a single cubic curve can do is close to a
straight line.


https://github.com/user-attachments/assets/2ed1666d-f96c-4465-9d5c-1f8f4a660bba

Although the largest deviation is only ~1e-6, the "feeling" from the
lack of curvature is sensible as shown in the following screenshot.

<img width="476" height="543" alt="image"
src="https://github.com/user-attachments/assets/6e6b96ed-80b3-487c-b621-3cddd4537ec0"
/>

</details>

**Result after this PR:**


https://github.com/user-attachments/assets/d0012e62-f61f-4d69-95a5-27646c0bb750

The following screenshot shows the reproduction app as commented in
https://github.com/flutter/flutter/issues/179875#issuecomment-3672426282
after the PR:

<img width="476" height="543" alt="image"
src="https://github.com/user-attachments/assets/d93b83be-a9fc-4b25-aca2-0e2c3f9a7e56"
/>

For comparison, the following screenshot shows the same shape drawn as
filled:

<img width="476" height="543" alt="image"
src="https://github.com/user-attachments/assets/bf94a20a-278b-42a2-9162-5aa4a61915af"
/>

**Before the PR:**
<img width="1024" height="796" alt="image"
src="https://github.com/user-attachments/assets/053cc229-01f1-4181-97a6-48b96bf16fcf"
/>

Also, a new golden test:
<img width="2400" height="1800" alt="image"
src="https://github.com/user-attachments/assets/6e741066-89a3-4282-bdc2-fa02b1eea14d"
/>


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2026-01-20 18:36:24 +00:00
Mohellebi abdessalem
7feeea6720
Remove unnecessary String.valueOf in FlutterJNI.java (#180995)
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2026-01-20 18:23:19 +00:00
Kaylee Lubick
2d7c3105aa
[skia] Use renamed GNI filegroup (#180853)
Skia renamed this GNI file group to emphasize this is only libpng (and
not rust png).

https://review.skia.org/1139996

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2026-01-20 17:31:41 +00:00
巢鹏
d21322b1b6
Add route for 'tmp' to Flutter runner (#181044)
The flaky test shows test realm miss "tmp" route to Flutter runner

Bug: b/468371588

## Pre-launch Checklist

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2026-01-19 16:30:19 +00:00
Harry Terkelsen
c652e45cd1
Fix style_manager_test for Firefox (#181084)
Fixes style_manager_test.dart for Firefox by

1. changing the CSS to explicitly set `outline: rgb(0, 0, 0) none 0px`
2. actually focusing the element before checking it's computed style

Fixes https://github.com/flutter/flutter/issues/180940

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[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
2026-01-17 00:52:09 +00:00
walley892
3b49eb4429
Add support for fetching array uniforms by name (#180647)
Adds support for fetching objects representing array Uniforms of type
float, vec2, vec3, and vec4. Happy new year!

Before this change, setting an array of uniforms was verbose.
```glsl
uniform vec3[2] uColors;
```

```dart
shader.setFloat(0, 1.0);
shader.setFloat(1, 0.0);
shader.setFloat(2, 1.0);
shader.setFloat(3, 0.0);
shader.setFloat(4, 1.0);
shader.setFloat(5, 0.0);
```

After this change, we have:

```glsl
uniform vec3[2] uColors;
```

```dart
final colors = shader.getUniformVec3Array("uColors");
colors[0].set(1.0, 0.0, 1.0);
colors[1].set(0.0, 1.0, 0.0);
```

- Adds a class UniformArray to represent uniform arrays in Dart.
- Adds a bunch of methods that construct these arrays for various
datatypes
- Adds tests
- Also removes some of the awkwardness in the _getUniformFloatIndex
function by replacing that function entirely

## 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.
2026-01-17 00:47:54 +00:00
bungeman
38a22ff523
Remove use of SkDeserialProcs::fTypefaceProc (#181047)
SkDeserialProcs::fTypefaceProc took a void* and size_t, but the
expectation was that the void* was a SkStream** and the size_t was
always sizeof(SkStream*). Users should now use the less confusing
replacement SkDeserialProcs::fTypefaceStreamProc which takes an
SkStream&.
2026-01-17 00:47:54 +00:00
bungeman
e9693c66e1
Migrate gradient creation to the new SkShaders API (#180766)
Update calls from the deprecated SkGradientShader::MakeLinear and
SkGradientShader::MakeRadial to the new SkShaders::LinearGradient and
SkShaders::RadialGradient functions. This implies updating the gradient
color specifications from SkColor to SkColor4f. The macro
SK_SUPPORT_LEGACY_UNSPANNED_GRADIENTS is removed.
2026-01-17 00:47:53 +00:00
auto-submit[bot]
af121ba5f3
Reverts "Fix capitalization of the path to FlutterWindowControllerTest.mm in the macOS platform build script (#181045)" (#181091)
<!-- start_original_pr_link -->
Reverts: flutter/flutter#181045
<!-- end_original_pr_link -->
<!-- start_initiating_author -->
Initiated by: jason-simmons
<!-- end_initiating_author -->
<!-- start_revert_reason -->
Reason for reverting: `FlutterWindowControllerTest.mm` has clang-tidy
warnings.

The clang_tidy script did not previously process this file because the
capitalization of the file's path in `compile_commands.json` (derived
from `BUILD.gn`) did not match the path in the source tree.
<!-- end_revert_reason -->
<!-- start_original_pr_author -->
Original PR Author: jason-simmons
<!-- end_original_pr_author -->

<!-- start_reviewers -->
Reviewed By: {jtmcdole, jmagman}
<!-- end_reviewers -->

<!-- start_revert_body -->
This change reverts the following previous change:
Fixes https://github.com/flutter/flutter/issues/180963
<!-- end_revert_body -->

Co-authored-by: auto-submit[bot] <flutter-engprod-team@google.com>
2026-01-16 22:51:27 +00:00
Jason Simmons
3ca6ba1797
Fix capitalization of the path to FlutterWindowControllerTest.mm in the macOS platform build script (#181045)
Fixes https://github.com/flutter/flutter/issues/180963
2026-01-16 18:15:52 +00:00
Gray Mackall
215ff2e7fe
Fix hcpp flicker when scrolling off/on screen (#181009)
Don't apply the transaction immediately, but let it be applied with
flutter frame timing.

Fixes https://github.com/flutter/flutter/issues/175547

See videos:

<table width="100%">
  <thead>
    <tr>
      <th align="center">With Change</th>
      <th align="center">Without Change</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td align="center" width="50%">
<video
src="https://github.com/user-attachments/assets/0370a7bc-88b5-49f0-8702-ac844309a50d"
controls="controls" style="max-width: 100%;"></video>
      </td>
      <td align="center" width="50%">
<video
src="https://github.com/user-attachments/assets/5f18cdbe-4218-4c7d-b582-5d175aa964b6"
controls="controls" style="max-width: 100%;"></video>
      </td>
    </tr>
    <tr>
      <td align="center">
<video
src="https://github.com/user-attachments/assets/21ef1c37-47cc-4d04-ae49-d8acb9145aa8"
controls="controls" style="max-width: 100%;"></video>
      </td>
      <td align="center">
<video
src="https://github.com/user-attachments/assets/091c9ff5-0e25-4696-a006-73823fc0fd8d"
controls="controls" style="max-width: 100%;"></video>
      </td>
    </tr>
  </tbody>
</table>



## 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 `///`).
- [ ] 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
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**Note**: The Flutter team is currently trialing the use of [Gemini Code
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<!-- Links -->
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[Tree Hygiene]:
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[test-exempt]:
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[Features we expect every widget to implement]:
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[CLA]: https://cla.developers.google.com/
[flutter/tests]: https://github.com/flutter/tests
[breaking change policy]:
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[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

---------

Co-authored-by: Gray Mackall <mackall@google.com>
2026-01-16 02:30:12 +00:00
Harry Terkelsen
5cefaad4a5
Fix bug in multisurfacerenderer where canvases do not have "position: absolute" (#181053)
When using MultiSurfaceRasterizer, the on-screen canvases did not have
`position: absolute`, causing layout issues when platform views with
overlaid content was rendered.

Fixes internal bug b/475770800

## 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
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Comments from the `gemini-code-assist` bot should not be taken as
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<!-- Links -->
[Contributor Guide]:
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[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]:
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[Features we expect every widget to implement]:
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[CLA]: https://cla.developers.google.com/
[flutter/tests]: https://github.com/flutter/tests
[breaking change policy]:
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2026-01-16 02:26:12 +00:00
auto-submit[bot]
5648089dbd
Reverts "Fix style manager test by actually focusing the tested element. (#181012)" (#181060)
<!-- start_original_pr_link -->
Reverts: flutter/flutter#181012
<!-- end_original_pr_link -->
<!-- start_initiating_author -->
Initiated by: harryterkelsen
<!-- end_initiating_author -->
<!-- start_revert_reason -->
Reason for reverting: test is still failing in CI
<!-- end_revert_reason -->
<!-- start_original_pr_author -->
Original PR Author: harryterkelsen
<!-- end_original_pr_author -->

<!-- start_reviewers -->
Reviewed By: {mdebbar, ditman}
<!-- end_reviewers -->

<!-- start_revert_body -->
This change reverts the following previous change:
The test was incorrect before since it assumed
`getComputedStyle(element, 'focus')` gets the style for element when it
is focused. Instead, it just gets the default style since the `'focus'`
parameter doesn't specify a real pseudo-element or pseudo-class. This
fixes the test by manually focusing the element and then getting the
computed style. This returns the computed style of the element when it
is focused.

Fixes https://github.com/flutter/flutter/issues/180940

## 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
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<!-- Links -->
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[test-exempt]:
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[Features we expect every widget to implement]:
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[CLA]: https://cla.developers.google.com/
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<!-- end_revert_body -->

Co-authored-by: auto-submit[bot] <flutter-engprod-team@google.com>
2026-01-16 00:51:47 +00:00
Harry Terkelsen
abe64db7ba
Fix style manager test by actually focusing the tested element. (#181012)
The test was incorrect before since it assumed
`getComputedStyle(element, 'focus')` gets the style for element when it
is focused. Instead, it just gets the default style since the `'focus'`
parameter doesn't specify a real pseudo-element or pseudo-class. This
fixes the test by manually focusing the element and then getting the
computed style. This returns the computed style of the element when it
is focused.

Fixes https://github.com/flutter/flutter/issues/180940

## 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
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**Note**: The Flutter team is currently trialing the use of [Gemini Code
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[Features we expect every widget to implement]:
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[flutter/tests]: https://github.com/flutter/tests
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2026-01-15 20:22:03 +00:00
engine-flutter-autoroll
c9a5d71226
Roll Dart SDK from 311a435e153e to 27326ef2fe32 (2 revisions) (#181037)
https://dart.googlesource.com/sdk.git/+log/311a435e153e..27326ef2fe32

2026-01-15 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com
Version 3.12.0-32.0.dev
2026-01-15 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com
Version 3.12.0-31.0.dev

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/dart-sdk-flutter
Please CC dart-vm-team@google.com,jimgraham@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
2026-01-15 19:45:32 +00:00
Jason Simmons
7d755d1093
Remove setup_hooks.dart and move _setupHooks back into natives.dart (#181008)
_setupHooks had been extracted into a separate file as part of Impeller
Scene, which was later removed from the engine.

setup_hooks.dart was not distributed with Flutter releases, and the
reference to a nonexistent file in the dart:ui library caused issues for
tools like source_gen
2026-01-15 15:59:18 +00:00
Harry Terkelsen
0eab137bcd
Skip flaky test on Firefox (#180941)
Skips flaky test on Firefox until
https://github.com/flutter/flutter/issues/180940 is fixed.

## 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
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---------

Co-authored-by: Mouad Debbar <mouad.debbar@gmail.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
2026-01-14 21:59:51 +00:00
David Iglesias
c62f8891b7
Add support for reduced motion/disable animations on the web (#180041)
This PR listens to changes to the value of the `(prefers-reduced-motion:
reduce)` media query to update the `reduceMotion` and
`disableAnimations` properties of the `AccessibilityFeatures`
configuration object.

This is achieved by introducing a new `MediaQueryManager` object to the
`EnginePlatformDispatcher` that handles handles all the engine
configuration values that are driven by media queries: "reduced motion",
"high contrast" and "dark mode".

Unifying the code paths of all these values, allows this PR to slightly
increase testing coverage of those values, by injecting fake browser
events in the `platform_dispatcher_test.dart` file.

### Issues

* Fixes #167566

### Testing

* Added browser tests for new (and existing) media-queries
* Deployed test app to: https://dit-tests.web.app (may get offline!)

## 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
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**Note**: The Flutter team is currently trialing the use of [Gemini Code
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<!-- Links -->
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2026-01-14 20:42:12 +00:00
b-luk
72b2728bfc
Add missing 'throw' to ImageFilter.shader's validation check (#180923)
An error StringBuffer was created and populated, but was left unused.
This PR `throw`s it.

This fixes and re-enables fragment_shader_test.dart's ImageFilter error
test. The test is re-enabled as an impeller-only test because
ImageFilter.shader requires impeller.

Fixes #180763

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2026-01-14 18:05:47 +00:00
b-luk
d8b975d4db
Fix 'ImageFilter.shader can be applied to canvas operations' test (#180929)
The test draws a red pixel onto a canvas with an ImageFilter that swaps
colors channels with
`frag_color = texture(u_texture, FlutterFragCoord().xy / u_size).bgra;`.

This PR fixes two things:
- When reading the output color, we can't construct a `Color` directly
from the byte data. The byte data is RGBA. But the `Color` int
constructor takes ARGB. So this was incorrectly reading the output
color. Instead, read the RGBA components individually and use them to
construct a color with `Color.fromARGB`.
- The input color red, when given to the color-swapping `bgra` shader,
outputs blue (0xFF0000FF), not green (0xFF00FF00).

Fixes #180927

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2026-01-14 18:05:46 +00:00
Kostia Sokolovskyi
bc63dfe662
[web] Fix loading of fragment shader with space in name. (#180919)
Fixes https://github.com/flutter/flutter/issues/180862

### Description

- Adds `assetKey` encoding in `FragmentProgram.fromAsset` in `web_ui` to
be consistent with the implementation in `ui`

7e176f8c3f/engine/src/flutter/lib/ui/painting.dart (L5354-L5369)
- Adds test

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2026-01-14 14:55:29 +00:00
Harry Terkelsen
3b7caba768
[canvaskit] Fix image decoding in CPU-only mode (#180706)
In CPU-only rendering mode, we were using
`MakeLazyImageFromTextureSource` which only works if a WebGL context is
available (which it isn't in CPU-only mode). This fixes the problem by
using `MakeImageFromCanvasImageSource` which uses a 2d canvas when we
have fallen back to software rendering.

Fixes https://github.com/flutter/flutter/issues/175423

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2026-01-14 01:07:10 +00:00
walley892
264816f75c
Move all getUniformX tests to web_ui/test. (#180910)
- Moves all the existing web tests for getUniformX to web_ui/tests.

- Commits shaders to github in addition to the impellerc generated
string. Had to manually translate them from the dumped SKSL string to
GLSL and recompile, there may be small differences.

- Updates the impellerc generated strings

Does not fix the web testing build system to have this happen in a
non-brittle way. That should happen at some point.
2026-01-13 22:15:12 +00:00
Jim Graham
aec9901a88
[Impeller] Fix crash trying to check for duplicate vertices in shadow_path code (#180920)
The new general convex path shadow code was checking for duplicate
vertices without actually checking if the vectors contained any
vertices. Thus, <vector>.back() was being called on empty vectors, which
is bad. This led to a crash in G3 as their code is being run with a
vector implementation that protects against this, but apparently we do
not have such a vector implementation in our local building and testing.

No tests because this covered by existing test cases and a new
FML_DCHECK, however I'm not sure if we have DCHECKs enabled in CI...?
2026-01-13 22:11:34 +00:00
gaaclarke
a6af15651f
Reenable 4 fragment shader tests (#180875)
issue https://github.com/flutter/flutter/issues/180764

turns on 4 disabled tests

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2026-01-13 18:20:59 +00:00
Mohellebi abdessalem
7674e4682f
Removes RequiresApi 23 (#180629)
Fixes : 
<img width="535" height="255" alt="Screenshot 2026-01-07 at 12 02 30"
src="https://github.com/user-attachments/assets/b796c871-7fb4-4944-9c7f-54be8b76a726"
/>

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2026-01-13 17:35:12 +00:00
gaaclarke
141886358e
Adds metal background to engine dart tests (#180700)
Dart tests now also run against the metal backend on platforms where
that is supported.

test exempt: it is a test

issue: https://github.com/flutter/flutter/issues/180601

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2026-01-13 16:09:24 +00:00
b-luk
3dda832e05
Add build-time checks for ImpellerC's SkSL compiler (#180861)
Adds build-time checks for ImpellerC's SkSL compiler in two places:
- The `CompilerSkSL` class in `spirv_sksl.cc` generates the compiled
SkSL from the user's input shader code. It has an existing
`detect_unsupported_resources` method which analyzes the generated
`ParsedIR` to detect various features that SkSL does not support (e.g.
UBOs and SSBOs, push constant blocks, and user specified inputs). This
PR adds additional checks to `detect_unsupported_resources` to detect
array initialization using array initializers (e.g. `float[](1.0,
2.0)`), which is not supported by SkSL. This specifically addresses
#125630.
- In the main `Compiler` class in `compiler.cc`, when compiling to SkSL,
validate the compiled SkSL by using it to create a `SkRuntimeEffect`.
Some invalid SkSL cases, like array assignment (`float[2] float_array =
another_float_array;`) are hard to detect from the `ParsedIR`, so
`CompilerSkSL` does not attempt to detect these invalid cases. The
validation added in `Compiler` will catch all of these cases after SkSL
compilation. The error messages produced from this validation are less
informative than error messages from `CompilerSkSL`'s checks. It
surfaces the error produced by Skia's SkSL parser and outputs the entire
generated SkSL file (which can be substantially different from the
user's input shader code).

Fixes #125630.

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2026-01-13 16:05:45 +00:00
Jason Simmons
8ee6d3572e
Roll libpng to version 1.6.53 (#180712)
See https://github.com/flutter/flutter/issues/180191
2026-01-12 22:51:56 +00:00
gaaclarke
82d232df03
Turn on fragment shader equality test (#180784)
fixes https://github.com/flutter/flutter/issues/180762

I manually tested against
https://github.com/flutter/flutter/issues/163302 which still works.

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2026-01-12 21:31:20 +00:00
Mohellebi abdessalem
4c27bcc9ba
Update PlatformPlugin to not call setStatusBarColor, setNavigationBarColor, setNavigationBarDividerColor when disabled (#180061)
fixes #165582
towards #165327 (see
https://discord.com/channels/608014603317936148/846507907876257822/1451187625116569660)

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---------

Co-authored-by: Camille Simon <43054281+camsim99@users.noreply.github.com>
Co-authored-by: Reid Baker <1063596+reidbaker@users.noreply.github.com>
2026-01-12 20:52:02 +00:00
Mohellebi abdessalem
be87f786f9
Fix documentation member not recognized because of missing import in FlutterEngine.java (#180731)
before :

<img width="575" height="24" alt="Screenshot 2026-01-09 at 11 32 49"
src="https://github.com/user-attachments/assets/0935ae33-2a1c-4fbf-ae3c-7bb815850eea"
/>

after : 

<img width="608" height="27" alt="Screenshot 2026-01-09 at 11 35 26"
src="https://github.com/user-attachments/assets/407d6a02-dae1-40d4-9ef2-767da3f49637"
/>

also fixed a small typo.


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2026-01-12 18:55:05 +00:00
Mohellebi abdessalem
9a36f6d725
Improve code quality in BinaryMessenger.java (#180733)
Fixes :
- unnecessary static and public modifiers 

for ref
[this](https://docs.oracle.com/javase/specs/jls/se16/html/jls-9.html):
`A nested interface is any interface whose declaration occurs within the
body of another class or interface declaration. A nested interface may
be a member interface, or a local interface`.
section `9.1.1.3. static Interfaces` says : `A nested interface is
implicitly static. That is, every member interface and local interface
is static.` .

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2026-01-12 17:40:01 +00:00
gaaclarke
f5bf8abcda
Reland Enabled some disabled impeller fragment shader dart tests (#180788)
relands https://github.com/flutter/flutter/pull/180759

changes since revert:
1) waits for async tests now
1) keeps 2 tests that don't pass on impeller disabled

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2026-01-12 17:35:41 +00:00