naga 28 update

[ChristopherBiscardi]

This is a working naga 28 update. I noticed some tests haven't passed (specifically cargo test --all-features) since before 0.14, so this PR doesn't attempt to make them pass.

enumerate_adaptors

instance.enumerate_adapters is async now (and available on webgpu): gfx-rs/wgpu#8230 . more details in the wgpu release notes.

ControlBarrier & MemoryBarrier

Barrier was split in two to support MemoryBarriers: gfx-rs/wgpu#7630

From the PR, it seems like falling back to ControlBarrier is fine so that's what I did.

Ray Query enable

ray queries require enable wgpu_ray_query;: gfx-rs/wgpu#8545

This doesn't currently seem to make it through, and the relevant test fails.

ImageAtomic

Image atomics were added in gfx-rs/wgpu#6706

Mesh Shaders

Mesh shaders are a major feature of wgpu 28, but I've set their fields to None here in the interest of doing an upgrade and not a feature add at the same time

https://github.com/gfx-rs/wgpu/releases/tag/v28.0.0

update: I found some time and built a wgpu mesh/task shader demo and used that to validate some of the mesh shader functionality. I've used this to successfully compile a task shader with naga-oil and run it, but there's still something missing from the mesh shader module output here.

[ChristopherBiscardi]

oh actually, cargo test --all-features doesn't pass on master and hasn't even been able to compile since 0.15. 0.14 (7031ca1) fails the test in the same way.

I'm going to back up a bit and just get cargo test to work instead.

[ChristopherBiscardi]

wgsl directive support was added in #123 and actually works for the ray queries, as long as the add_composable_module function is not used. (so a single file with all the content works)

This seems like a pattern solari actually uses at the moment, so I'm not modifying the test to make it pass, but #123 mentions that trying to make this work got complicated.

Other than that (and no actual implementation for mesh shaders) this seems like the v28 upgrade completed.

[ChristopherBiscardi]

I was able to fix the rayquery test.

for composable modules, the enable extension needs to be below the #define_import_path like this:

#define_import_path test_module

enable wgpu_ray_query;

If it is not, the error will indicate that the extension is not enabled.

called Result::unwrap() on an Err value: ComposerError { inner: WgslParseError(ParseError { message: "the wgpu_ray_query enable extension is not enabled", labels: [(Span { start: 67, end: 89 }, "the wgpu_ray_query "Enable Extension" is needed for this functionality, but it is not currently enabled.")], notes: ["You can enable this extension by adding enable wgpu_ray_query; at the top of the shader, before any other items."] }), source: Module { name: "test_module", offset: 0, defs: {} } }