WebGPU generation is missing.

[munrocket]

As I understand webgpu.idl is supported in package:web but it is impossible to use because navigator.gpu on page does not exist. Typical WebGPU example in JS starting like this:

const adapter = await navigator.gpu?.requestAdapter();
const device = await adapter?.requestDevice();
if (!device) {
  fail('need a browser that supports WebGPU');
  return;
}

// Get a WebGPU context from the canvas and configure it
const canvas = document.querySelector('canvas');
const context = canvas.getContext('webgpu');
const presentationFormat = navigator.gpu.getPreferredCanvasFormat();
context.configure({
  device,
  format: presentationFormat,
});

So this should compile in dart without commented lines.

import 'package:web/web.dart';
void main() async {
  console.log(window.navigator as dynamic);
  //console.log(window.navigator.gpu as dynamic);
}

[srujzs]

gpu is still experimental alas, and we avoid emitting such members. Supporting this within your own application is still possible through interop though e.g.

extension on Navigator {
  external GPU get gpu;
}

extension type GPU._(JSObject _) implements JSObject {
  external JSPromise<GPUAdapter> requestAdapter(JSObject options);
  // other members
}

extension type GPUAdapter._(JSObject _) implements JSObject {
  // other members
}

[munrocket]

Thanks.

[munrocket]

I will reopen issue, because webgpu.idl source seems not full. It’s not just missing navigator.gpu that can be easily patched.

Actual:

web/web/lib/src/dom/webgpu.dart

Line 4 in 3619fd8

//

Expected (roughly):
https://github.com/gpuweb/types/blob/main/dist/index.d.ts

Expected IDL source:
https://hg.mozilla.org/mozilla-central/file/tip/dom/webidl/WebGPU.webidl

WebGPU is really hot technology and implemented in Chrome Stable and behind the flag in Safari and Firefox.

[srujzs]

Sorry for the late response here, but I'm working on allowing the generator to generate all the bindings through a flag even if we never check them in. While we may not want to include all the bindings in the web package, being able to generate all of them allows you to avoid having to write the missing ones by hand at least.

[srujzs]

FYI, #302 has landed. If you check out this repo, and follow the instructions here, the generator will generate all the bindings, including WebGPU.

[munrocket]

Thanks, here patched version with examples.