Fixes https://github.com/flutter/flutter/issues/122823 Fixes https://github.com/flutter/flutter/issues/129659 Fixes https://github.com/flutter/flutter/issues/123741 This patch makes runtime stage/fragment program stuff work on Vulkan for Android. It will need flutter/flutter#140976 for that to become a reality for flutter_tools users. Compiling with relaxed Vulkan semantics still has an issue: shaders that use `sampler2D` with an explicitly set `location` on the `layout` will fail to compile with an error documented in https://github.com/flutter/flutter/issues/141219. I think there might still be some issues with fragment programs on Vulkan, but this should at least be a good starting point and unblocks ink_sparkle.frag usage in the framework. I've deleted some runtime_stage related code that would never get used - for example, enum related code that indicates we might support a bunch of data types that we do not and probably never will support in this API.
Flutter Engine
Flutter is Google's SDK for crafting beautiful, fast user experiences for mobile, web, and desktop from a single codebase. Flutter works with existing code, is used by developers and organizations around the world, and is free and open source.
The Flutter Engine is a portable runtime for hosting Flutter applications. It implements Flutter's core libraries, including animation and graphics, file and network I/O, accessibility support, plugin architecture, and a Dart runtime and compile toolchain. Most developers will interact with Flutter via the Flutter Framework, which provides a modern, reactive framework, and a rich set of platform, layout and foundation widgets.
If you want to run/contribute to Flutter Web engine, more tooling can be found at felt. This is a tool written to make web engine development experience easy.
If you are new to Flutter, then you will find more general information on the Flutter project, including tutorials and samples, on our Web site at Flutter.dev. For specific information about Flutter's APIs, consider our API reference which can be found at the docs.flutter.dev.
Flutter is a fully open source project, and we welcome contributions. Information on how to get started can be found at our contributor guide.