set metal resource labels - sokol_gfx.h

[danielchasehooper]

It would be useful if all the .label strings were passed on to the underlying MTLResource's label property, for easier debugging in the Metal Debugger.

[floooh]

Yes good idea, question is: only in debug mode, or also for release? I tend towards 'only in debug mode'.

[floooh]

Ok, I'll only do it in debug mode. I also implemented sg_push/pop_debug_group(), but only inside a render pass (because these are MTLCommandEncoder methods in Metal).

In some cases I'm adding a post-fix to the label (where sokol-gfx may create multiple Metal objects for a single sokol-gfx object). For the texcube-sapp it looks like this:

PS: also make sure to run your sokol-gfx frame inside an @autoreleasepool, not sure if I have mentioned that anywhere (sokol_app.h does this automatically).

I'll put the changes into a PR and close this ticket when merged.

[floooh]

PR: #890

[floooh]

Ok, fixed in a4d1119

[danielchasehooper]

Awesome! Thank you! I was also thinking only in debug mode.