Dart WebGPU

Dart bindings of the WebGPU graphics API.

WARNING: Experimental, Work In Progress

Development is on-going, and not everything works.

Async functions like mapAsync currently trigger a crash in Dawn that I’m trying to track down.

To update the webgpu bindings, run python build_libwebgpu.py

This will download the required third-party libraries, build them, and generate an updated version of the ffi Dart bindings using ffigen.

Dart WebGPU uses the following third party libraries:

Dawn: https://dawn.googlesource.com/dawn
- This is Google’s implementation of WebGPU.
lib_webgpu: https://github.com/juj/wasm_webgpu
- This is a wrapper around Dawn that simplifies the API making binding easier.

Build libwebgpu with python build_libwebgpu.py
Make sure to load the Debug build of the library by adding wgpu.initializeWebGPU(debug: true); to the top of the Dart program.
Add a breakpoint to the Dart code, run in debugger, pausing execution at the breakpoint.
Open libwebgpu/_build/Debug/libwebgpu.sln in Visual Studio
In VS Debug / Attach To Process...
- Find the dart.exe process that has the dart program as an argument.
- Open the lib_webgpu or Dawn cpp file you want to debug in VS, add a breakpoint to the line you want to catch with the debugger.
- Unpause the Dart Debugger