31062 Commits

Author SHA1 Message Date
LouiseHsu
b683af0cec
Engine Support for Dynamic View Resizing (#173610)
Part of https://github.com/flutter/flutter/issues/169147 (iOS) and
https://github.com/flutter/flutter/issues/149033 (Android).
Implementation PRs coming up!

This enables support for dynamic view resizing in non-web embedders.
While this PR enables support, it does not _implement_ support.

Specifically, this creates the pipes (in viewport metrics) for min/max
width/height constraints that tell the engine and framework that when
rendering the frame it should adjust the width/height as needed for the
content. The engine should also discard layer trees that do not fit the
constraints.

Since the engine now relies on BoxConstraints, geometry.h has now been
moved out of embedder specific codepath so that both embedder and engine
can depend on it.

Related PRs:
`dart:ui`: https://github.com/flutter/engine/pull/48090
`framework`: https://github.com/flutter/flutter/pull/138648
`framework reland`: https://github.com/flutter/flutter/pull/140918
`Web`: https://github.com/flutter/engine/pull/50271

## Pre-launch Checklist
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---------

Co-authored-by: Matt Boetger <boetger@google.com>
Co-authored-by: Matt Boetger <matt.boetger@gmail.com>
2025-09-18 16:16:24 +00:00
Victoria Ashworth
ba2bcd62dc
Connect the FlutterEngine to the FlutterSceneDelegate (#174910)
Once the `FlutterViewController` is able to get its `UIWindowScene`,
pass itself to the `FlutterSceneDelegate` through the
`FlutterSceneLifeCycleProvider` protocol. The scene will store the
`FlutterEngine` in a weak pointer array.

This is an incremental change towards
https://github.com/flutter/flutter/issues/174398.

Fixes https://github.com/flutter/flutter/issues/174395.

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2025-09-18 14:56:05 +00:00
engine-flutter-autoroll
ef6c1d1851
Roll Dart SDK from de5dd0f1530f to 09a101793af4 (2 revisions) (#175583)
https://dart.googlesource.com/sdk.git/+log/de5dd0f1530f..09a101793af4

2025-09-18 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com
Version 3.10.0-217.0.dev
2025-09-18 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com
Version 3.10.0-216.0.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 chinmaygarde@google.com,dart-vm-team@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
2025-09-18 13:26:42 +00:00
gaaclarke
e929999892
Removes NOTICES from licenses input (#174967)
fixes https://github.com/flutter/flutter/issues/174996

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2025-09-18 02:48:21 +00:00
Harry Terkelsen
2e51c3f343
[reland][web] Refactor renderers to use the same frontend code #174588 (#175392)
Refactors the renderer code so both renderers (Skwasm and CanvasKit) use
the same SceneBuilder and platform view embedding code. This change is
discussed in a design doc here:
https://flutter.dev/go/web-renderer-unification

Fixes https://github.com/flutter/flutter/issues/172311
Fixes https://github.com/flutter/flutter/issues/172308
Fixes https://github.com/flutter/flutter/issues/142072

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2025-09-17 23:20:45 +00:00
Jason Simmons
7810162d7f
Ensure that the raster thread has an EGL context before submitting the command buffer in ImageEncodingImpeller (#175102)
Fixes https://github.com/flutter/flutter/issues/171946
2025-09-17 16:48:24 +00:00
Mohellebi abdessalem
a2de25a429
Update buildscript classpath dependency to fix IDE support on android studio (#175273)
fixes #175495
<img width="413" height="318" alt="check"
src="https://github.com/user-attachments/assets/ca82dfa5-ae3d-4fdc-8675-c50102dc5b16"
/>


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2025-09-17 16:36:08 +00:00
Mohellebi abdessalem
13b31d9eb6
Fix linter issues about C-style array in java code (#175497)
<img width="701" height="147" alt="01"
src="https://github.com/user-attachments/assets/75cf7800-8632-43b2-aac7-43319d3d2211"
/>

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2025-09-17 16:36:08 +00:00
Kostia Sokolovskyi
b392036b54
[web] Fix errors when using image filters with default values. (#175122)
Fixes https://github.com/flutter/flutter/issues/174583

- Fix WASM crash when image filter is null
- Adds support for dilate and erode image filters with default values to
CanvasKit
- Adds new tests to verify that image filters with default values can be
used without any issues/crashes

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2025-09-17 16:16:28 +00:00
Mouad Debbar
6b25ec9609
[web] Remove unused sceneHost property (#174997) 2025-09-17 16:10:13 +00:00
Mohellebi abdessalem
4de430f668
replace Charset.forName("UTF-8") with StandardCharsets.UTF_8 to address linter issues (#175275)
<img width="598" height="568" alt="utf_8_error"
src="https://github.com/user-attachments/assets/4eb61353-42fe-4fc5-b48f-deb0acff67c0"
/>

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2025-09-17 14:46:46 +00:00
Mohellebi abdessalem
d446b4e801
Remove redundant public modifier for interface members in MouseCursorPlugin.java (#175281)
<img width="836" height="257" alt="public"
src="https://github.com/user-attachments/assets/87f0dcb1-2b74-405a-bca8-9b3a9ffe5986"
/>

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2025-09-16 19:58:39 +00:00
Mohellebi abdessalem
f56f309203
Remove the unnecessary semicolon at the end of the line in ProcessTextPlugin.java (#175280)
Remove unnecessary semicolon at the end of the line in :
```java
public void onAttachedToActivity(@NonNull ActivityPluginBinding binding) {
    this.activityBinding = binding;
    this.activityBinding.addActivityResultListener(this);
  };
```
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2025-09-16 19:56:52 +00:00
Mohellebi abdessalem
fc03bafe7f
Remove unnecessary toString() call in ImageReaderPlatformViewRenderTarget.java (#175286)
<img width="557" height="559" alt="toString"
src="https://github.com/user-attachments/assets/89d646d8-4e23-4b11-a89c-2eacae3da46b"
/>
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2025-09-16 19:56:52 +00:00
Mohellebi abdessalem
16a2bc623c
Refactor AccessibilityBridge.java to address linter issues (#175277)
<img width="684" height="174" alt="unused_null"
src="https://github.com/user-attachments/assets/b2807f32-3382-4248-8be5-2e7212679b3f"
/>
<img width="508" height="416" alt="isEmpty"
src="https://github.com/user-attachments/assets/a16669ba-115c-420e-86ea-a4850e3aeabc"
/>

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2025-09-16 19:56:52 +00:00
Mohellebi abdessalem
3a7a4d3d88
Replace .size() == 0 with isEmpty() in PlatformPlugin.java (#175285)
Replace `overlaysToShow.size() == 0 ` with `overlaysToShow.isEmpty()` to
improve readability and to fix android studio lints about using
`isEmpty()` instead of `size() == 0`.

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2025-09-16 19:56:52 +00:00
John "codefu" McDole
e068a3e6c4
chore: move engine docs out of engine/ and into docs/ (#175195)
Moving docs to be co-located with other docs + updating links. This has
the benefit of not including docs in engine content hash semantics.
2025-09-16 18:19:50 +00:00
Jason Simmons
db3cbe51cb
[Impeller] Disable the render target cache when creating a snapshot in DlImageImpeller::MakeFromYUVTextures (#174912)
Also avoid inserting newly created render targets into the cache if the
cache is disabled. (Previously disabling the cache would skip lookups of
existing cache entries but would still add new entries to the cache)

The image created by DlImageImpeller::MakeFromYUVTextures should not
reuse a texture from the cache, and its texture should not be reused by
other operations.

Fixes https://github.com/flutter/flutter/issues/174794
2025-09-16 18:18:32 +00:00
Mohellebi abdessalem
6271ecc74f
Remove redundant public modifier in PlatformViewRenderTarget.java (#175284)
<img width="836" height="257" alt="public"
src="https://github.com/user-attachments/assets/172b25e2-2dc3-48f2-8781-d3dcd4b19a58"
/>

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2025-09-16 17:17:52 +00:00
jesswrd
5ecb23afdb
Update NDK to The Latest Stable (#175365)
Updated ndk to `28.2.13676358`. Android ndk `r28` is required to
automatically compile to 16KB page sizes
[here](https://developer.android.com/guide/practices/page-sizes#compile-r28).
Otherwise extra configurations and flags are required.

Have to update the configs in engine first. This is part 1.

Addresses https://github.com/flutter/flutter/issues/175022

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2025-09-16 16:49:11 +00:00
chunhtai
e8bef98051
Adds a11y section locale support for iOS (#175005)
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part of https://github.com/flutter/flutter/issues/99600

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2025-09-16 15:38:15 +00:00
Chinmay Garde
324c0eee08
Merge the engine README into the README of the old buildroot. (#175384)
That readme contained outdated instructions.
2025-09-15 22:53:10 +00:00
Robert Ancell
cbac57a245
Add a gn --ccache argument (#174621)
This enables the use of ccache on Linux and Mac systems.

---------

Co-authored-by: Loïc Sharma <737941+loic-sharma@users.noreply.github.com>
2025-09-15 22:12:20 +00:00
Mohellebi abdessalem
1ceedcd59f
Update build.gradle to remove deprecation warning in flutter\engine\src\flutter\shell\platform\android (#175305)
part of #173321

when excuting `./gradlew help --scan --warning-mode all` in
`flutter\engine\src\flutter\shell\platform\android`
i see a warning :
```gradle
> Configure project :
Build file 'C:\flutter\engine\src\flutter\shell\platform\android\build.gradle': line 25
Properties should be assigned using the 'propName = value' syntax. Setting a property via the Gradle-generated 'propName value' or 'propName(value)' syntax in Groovy DSL has been deprecated. This is scheduled to be removed in Gradle 10.0. Use assignment ('namespace = <value>') instead. Consult the upgrading guide for further information: https://docs.gradle.org/9.0-milestone-1/userguide/upgrading_version_8.html#groovy_space_assignment_syntax
        at build_6pliwxbny923etvz9fwvbblij$_run_closure2.doCall$original(C:\flutter\engine\src\flutter\shell\platform\android\build.gradle:25)
        (Run with --stacktrace to get the full stack trace of this deprecation warning.)
        at build_6pliwxbny923etvz9fwvbblij.run(C:\flutter\engine\src\flutter\shell\platform\android\build.gradle:24)
        (Run with --stacktrace to get the full stack trace of this deprecation warning.)
```
which is the line
```gradle
namespace "io.flutter.embedding"
```
after changing it to :
```gradle
namespace = "io.flutter.embedding"
```
the error is gone :
```gradle
C:\flutter\engine\src\flutter\shell\platform\android git:[master]
./gradlew help --scan --warning-mode all

> Task :help

Welcome to Gradle 9.0-milestone-1.

```
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2025-09-15 21:31:09 +00:00
hellohuanlin
fd88c47efa
[ios]Do not re-adds delaying recognizer on iOS 26 (#175097)
Removing since the workaround doesn't work anymore for iOS 26. It caused
our whole gesture blocking system to fail completely (see
https://github.com/flutter/flutter/issues/174513). We have to revert it
and find other solutions.


*List which issues are fixed by this PR. You must list at least one
issue. An issue is not required if the PR fixes something trivial like a
typo.*

Fixes https://github.com/flutter/flutter/issues/174513

Follow-up issue:  https://github.com/flutter/flutter/issues/175099


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2025-09-13 03:09:37 +00:00
Devon Carew
b88c067486
update deps to point to the new SOT repo for package:coverage (#175234)
This PR updates the deps to point to the new SOT repo for
package:coverage. The engine was referencing the old location;
package:test needs functionality from the latest package:coverage, and
we need to update the coverage reference here in order to roll the
latest `test` through dart and flutter.

Issues:
- roll failure trying to update the latest package:test into the Dart
SDK; https://dart-review.googlesource.com/c/sdk/+/448423

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2025-09-11 20:06:22 +00:00
Kostia Sokolovskyi
ed6e638756
[web] Fix image and color filters equality in SkWASM. (#175230)
Closes https://github.com/flutter/flutter/issues/173968

- Adds equality support to `ImageFilter`s in SkWASM
- Adds equality support to `ColorFilter`s in SkWASM
- Fixes test to not use const objects in the equality checks

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2025-09-11 19:15:22 +00:00
Matej Knopp
6fc3eefcf6
[shell] Fix engineId not being set after hot restart (#174451)
Fixes #173474

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2025-09-10 09:19:14 +00:00
Jason Simmons
d2215194e3
Update ImageReaderSurfaceProducer.MAX_IMAGES to include the maximum number of retained dequeued images (#174971)
MAX_IMAGES was set to 5 by
7a58dac0b1
in order to fix "client tried to acquire more than maxImages buffers"
warnings from ImageReader_JNI.


696251d25a
then converted lastDequeuedImage into a queue that retains up to
MAX_DEQUEUED_IMAGES in-flight images plus the latest dequeued image.
MAX_DEQUEUED_IMAGES was set to 2, but MAX_IMAGES was only incremented by
1. So the ImageReader_JNI warning may reappear in some cases.

This PR ensures that MAX_IMAGES provides enough capacity in the
ImageReader for the total number of images that may be in use.
2025-09-08 21:40:32 +00:00
Oreofe Solarin
b01f4a5447
Impeller: Convert GLProc name field and GLErrorToString to std::string_view (#173771)
This PR improves the OpenGL error handling and procedure table interface
in the Impeller renderer by changing `const char*` to `std::string_view`
for better memory safety.

### Testing:

Added unit tests to cover `GLErrorToString` return values and
`string_view` behavior

### Issues Fixed #135922

This PR addresses technical debt by improving string handling in the
OpenGL backend, and type safety without breaking existing functionality.

## Pre-launch Checklist

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[test-exempt].
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Fixes] where supported.
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2025-09-08 19:59:20 +00:00
Chinmay Garde
df8e02d5b8
Depend on operator overload synthesis for three-way and equality comparisons. (#174892)
This depends on the implicitly generated `operator!=` from `operator==`
in a few cases (see the exceptions below) and add `operator<=>` in some
of the more obvious instances.

I've tried to be extremely conservative in this first pass. There are a
few more candidates that were not converted because:

* `operator!=` was different from `!operator=.` For instance, if it had
early returns. Not sure how the compiler generated those and didn't want
the behavior or performance characteristics to change.
* They were virtual.
* `operator==` didn't actually compare all struct members. Dubious but I
didn't want to change existing behavior.
* There were template parameters.
2025-09-08 19:15:26 +00:00
Chinmay Garde
f356a80301
Define a concept for UniqueObjectTraits. (#174905)
Earlier, it was just a comment. If you didn't do what the comment said,
you'd get a mysterious compiler error when the template was instantiated
at the point where the trait method was invoked. This would be extremely
far away from where the template was instantiated and typically in
`fml/unique_object.h`.

Now, the exact reason and where a fix would go is printed in the
compiler error. For instance, if I delete the Free method in
`UniqueDirTraits`, I get (among other output):

```
no member named 'Free' in 'fml::internal::os_unix::UniqueDirTraits'
```
2025-09-08 19:15:26 +00:00
gaaclarke
135f367273
Added note about how to compile licenses_cpp (#174947)
fixes https://github.com/flutter/flutter/issues/174942

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2025-09-05 17:26:10 +00:00
Mouad Debbar
e6af6f9a0c
[web] Minor simplification in flutter.js loader (#174963) 2025-09-05 17:00:20 +00:00
gaaclarke
fd10d21948
deletes the old license checker. (#174719)
This has been replaced by `//engine/src/flutter/tools/licenses_cpp`

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2025-09-05 16:59:27 +00:00
Pedro Massango
00e428a200
fix(Semantics): Ensure semantics properties take priority over button's (#174473)
Fixes https://github.com/flutter/flutter/issues/157689

Flutter packages PR counterpart:
- https://github.com/flutter/packages/pull/9815



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2025-09-04 21:05:27 +00:00
Mouad Debbar
31aaf38a93
Remove 'terms of use' wording from web_unicode (#174939)
This library isn't used anywhere and will be deleted here:
https://github.com/flutter/flutter/pull/174896

I'm removing the "terms of use" wording to unblock the G3 roll while I
investigate the failures on the full deletion PR.
2025-09-04 18:16:51 +00:00
Victoria Ashworth
baf4de08b4
Prevent potential crash when accessing window in FlutterSceneDelegate (#174873)
Accessing `appDelegate.window` may crash if the AppDelegate doesn't have
the window property. This can happen when using a custom
`UIApplicationDelegate` (and not the `FlutterAppDelegate`).

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2025-09-04 18:13:03 +00:00
LongCatIsLooong
251f4a8d5b
Add a viewController property to the ios/macOS FlutterPluginRegistrar protocol (#174168)
#104117

Adds a `viewController` (per
https://github.com/flutter/flutter/issues/104117#issuecomment-3114772381,
presumably because iOS plugins want to presenting new view controllers)
getter that makes the single-view assumption. ~This is a method instead
of a weak + readonly property like the macOS registrar protocol because
existing getters are also methods, e.g.,~
```objc
- (NSObject<FlutterBinaryMessenger>*)messenger;
- (NSObject<FlutterTextureRegistry>*)textures;
```

~Unfortunately swift callers will have to use a preprocess macro and add
different code paths for macOS and iOS.~

#### Single view assumption

I've considered adding a `- (nullable
UIViewController*)viewControllerForViewID: ViewIDType;` method but that
will force plugins to make breaking changes in order to migrate off of
the deprecated `keyWindow` property. Take the text input plugin as an
example, it has to add a `viewID` argument to the `setTextInputClient`
call when establishing a new text input connection, so the text input
plugin knows which view hierarchy to add the text input view to. It is
unclear to me whether more `FlutterPluginRegistrar` changes are needed
to completely get rid of the single-view assumption in the protocol (the
views `FlutterPlatformViewFactory` creates are always added as subviews
to `flutterView` so I guess that interface may have to change in the
future? According to according to [Flutter’s multi-window
status](https://docs.google.com/document/d/13E27tD8_9f6lDgwg3MpGNTV8XIRCZH3ByI-t9kI9IUM/edit?tab=t.0#heading=h.8lxwn1tiky70),
only a `viewForIdentifier` method will be added to registrar), so IMO it
would be a better experience to not introduce the `viewID` concept right
now and force plugins to make break changes, since they may have to make
more breaking changes in the future.

Alternatively, we could also ignore the `viewID` args for now and always
return the view controller of the implicit view in the implementation,
so that plugin authors can use made-up view IDs to get the implicit view
controller. But that's going to make future multiview migrations
difficult since the compiler won't be able to catch unmigrated code if
the plugin is using a bogus view ID.

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2025-09-04 01:32:32 +00:00
chunhtai
f5ce9117ee
Wires up Android API to set section locale (#173364)
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related https://github.com/flutter/flutter/issues/99600

what still missing:
1. iOS equivalence
2. set application level locale 

internal only doc:
[go/flutter-semantics-language](http://goto.google.com/flutter-semantics-language)


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2025-09-03 23:37:31 +00:00
Chinmay Garde
3a18c9449e
Delete impeller::SPrintF. (#174900)
We have std::format at home.

This is superior for a few reasons. The caller doesn't have to remember
the format string for the type. I believe std::string_views that are not
null terminated are also handled correctly. Also, we don't have to
maintain and test our own SPrintF.
2025-09-03 23:09:14 +00:00
Chinmay Garde
1091786642
Fixup formatting of gn files in the old buildroot. (#174852)
`git ls-files "*.gn*" | xargs ./flutter/third_party/gn/gn format`

We already seem to enforce GN format on pull-requests. These seem to old
files in the buildroot no one has touched in a while.
2025-09-03 17:36:06 +00:00
Jim Graham
dbe229eba7
[Impeller] Fix overdraw in DrawRect geometry (#174735)
Fixes https://github.com/flutter/flutter/issues/174579

Vertex lists for stroked rects were fixed by being more careful about
the creation of the vertices so that they have no inherent overdraw.
These operations continue to use the fastest kNormal vertex mode but no
longer create rendering artifacts due to multiple triangles covering the
same area.
2025-09-02 23:19:36 +00:00
Chinmay Garde
754b93f151
Patch .clang-format files to specify C++20. (#174848)
Clang format will reject valid uses of C++ (like the spaceship operator
definition) because they are not valid C++11. This tweaks how
clang-format treats sources.

I tried to get rid of the redundant .clang-format files but they all
specify other options and don't cascade. So just let the files be and
only updated the version.
2025-09-02 23:02:06 +00:00
Chinmay Garde
c6f2de7aba
Build engine TUs with C++20. (#174471)
The changes:

* Creating a bit-mask with different enum values is now a warning. Fixed
offending instances.
* `char8_t` is a different type. Fixed those instances.
* Disabling modules in Objective-C requires bypassing the driver.
* Aggregate initialization fails when there are other constructors for
structs. Added explicit constructors.
* `gn format` doesn't seem to be run on erstwhile buildroot GN files.
Fixes the formatting. But can back this out since it is technically
unrelated to C++20.
2025-09-02 18:31:21 +00:00
gaaclarke
432cfa62ac
Made emulator check more thorough (#174731)
fixes https://github.com/flutter/flutter/issues/169931

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2025-09-02 17:31:02 +00:00
gaaclarke
a889fae0c2
Bind GL_FRAMEBUFFER with glReadPixels for gles2 compatibility (#174668)
fixes https://github.com/flutter/flutter/issues/164459

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2025-09-02 16:43:27 +00:00
chunhtai
03195e6990
Reapply "Add set semantics enabled API and wire iOS a11y bridge" (#174163)
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Previous pr is reverted due to internal test failure

This is a straight reland, no change from previous. only need to migrate
internal code

fixes https://github.com/flutter/flutter/issues/158399

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2025-08-29 19:29:12 +00:00
Jackson Gardner
c98cc294ba
[impeller] Support partitioned host buffer (#174463)
This change adds support for host buffer that keeps index buffers
separate from other general-purpose data. This is a requirement for
WebGL:
https://registry.khronos.org/webgl/specs/latest/2.0/#BUFFER_OBJECT_BINDING

No current backends use the partitioned implementation, but once I add
WebGL support it will use it to avoid
https://github.com/flutter/flutter/issues/149603
2025-08-29 01:08:47 +00:00
Robert Ancell
99012ee692
Check GTK calls are done on the same thread. (#174488) (#174624)
Resubmitted, as the previous PR had a merge error.

Fixes https://github.com/flutter/flutter/issues/173660
2025-08-29 01:05:21 +00:00