Explicitly load Metal symbols

[gfx-rs]

Explicitly load Metal symbols

[grovesNL]

@GopherJ not yet, we might experiment with the first approach above (i.e. using weak_framework and a helper function to check if it's loaded)

[grovesNL]

If it's possible, would it make sense to use weak_framework here, and expose a helper function to check if Metal is available?

we load symbols when metal-rs objects are created (or some kind of a Metal context is initialized) instead of dynamically checking for symbols on each and every call

If we want to use libloading for this, how should this work? Would we internally share a map of function pointers?

[GopherJ]

Hi, any news on this?

[GopherJ]

@grovesNL ok thanks take your time and ping me if it's resolved, I'll be excited to test again. 😄

[kvark]

Would #[link(name = "Metal", kind = "weak_framework")] work?

[grovesNL]

Yeah I think something like that should work – just need to test it out

[grovesNL]

Update: I asked on the Rust Zulip and Discourse (https://users.rust-lang.org/t/how-to-use-weak-linking-on-macos-link-with-weak-framework/50732) but had no response yet