[Impeller] PowerVR devices rendering incorrectly if vertex/fragment stage varyings have mismatched relaxed precision. #143573
Description
Steps to reproduce
Build and run app with impeller enabled on a Galaxy Tab 7 Lite (Android 14)
Immediately visible
Expected results
Properly working app
Actual results
Ugly font, unreadable
Green backgrounds
Missing icons
See screenshots
Code sample
Code sample
Just use the default demo app. And add this to the AndroidManifest.xml in release:<meta-data
android:name="io.flutter.embedding.android.EnableImpeller"
android:value="true" />Screenshots or Video
Screenshots / Video demonstration
[Upload media here]
Logs
Logs
wouter$ flutter run --release -d "SM T220"
Launching lib/main.dart on SM T220 in release mode...
Running Gradle task 'assembleRelease'... 94.3s
✓ Built build/app/outputs/flutter-apk/app-release.apk (6.9MB).
Installing build/app/outputs/flutter-apk/app-release.apk... 16.9s
Flutter run key commands.
h List all available interactive commands.
c Clear the screen
q Quit (terminate the application on the device).
E/flutter (23388): [ERROR:flutter/shell/platform/android/android_context_vulkan_impeller.cc(52)] Using the Impeller rendering backend (Vulkan).
Flutter Doctor output
Doctor output
[✓] Flutter (Channel stable, 3.19.0, on macOS 14.3.1 23D60 darwin-arm64, locale en-NL)
• Flutter version 3.19.0 on channel stable at /Users/wouter/.flutter_sdk
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision bae5e49bc2 (2 days ago), 2024-02-13 17:46:18 -0800
• Engine revision 04817c99c9
• Dart version 3.3.0
• DevTools version 2.31.1
[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
• Android SDK at /Users/wouter/Library/Android/sdk
• Platform android-34, build-tools 34.0.0
• ANDROID_SDK_ROOT = /Users/wouter/Library/Android/sdk
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 17.0.7+0-17.0.7b1000.6-10550314)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 15.2)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 15C500b
• CocoaPods version 1.15.2
[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Android Studio (version 2023.1)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 17.0.7+0-17.0.7b1000.6-10550314)
[✓] VS Code (version 1.86.2)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.82.0
[✓] Connected device (3 available)
• Touwer (mobile) • 00008110-000864E211FB801E • ios • iOS 17.3.1 21D61
• macOS (desktop) • macos • darwin-arm64 • macOS 14.3.1 23D60 darwin-arm64
• Chrome (web) • chrome • web-javascript • Google Chrome 121.0.6167.184
[✓] Network resources
• All expected network resources are available.
• No issues found!Metadata
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Important issues not at the top of the work listTablets and landscape phonesUI glitches reported at the engine/skia or impeller rendering levelOnly manifests on certain devicesImpeller rendering backend issues and features requestsAndroid applications specificallyIssue is closed as already fixed in a newer versionOwned by Engine teamTriaged by Engine team