sg_make_image crash when Xcode Metal API Validation enabled

[cai502]

Crash occurs on macbook pro 19 only when Xcode Metal API Validation enabled.

But macbook pro 21(with M1 Chip) is ok.

[cai502]

info added for macbook pro 19

1. Xcode Version: 14.3
2. macOS: Ventura 13.3.1(a)

[floooh]

Hmm, ok. That code is relatively recent, looks like I ignored this little tidbit that StorageModeShared textures are not allowed on Intel GPUs:

https://developer.apple.com/documentation/metal/mtlstoragemode/mtlstoragemodeshared#discussion

Since it looks like that by default Metal does the right thing, I will just remove the explicit storage mode selection again.

Thanks for the bug report!

[floooh]

PS: for a quick workaround you can set the sg_desc.mtl_force_managed_storage_mode option to true in the sg_setup() call, but I'll try to provide a proper fix asap.

[floooh]

PPS: after dusting off my old Intel Mac with Big Sur and Xcode 12 I actually have a couple of more problems (sokol_gfx.h doesn't build because some declarations from more recents SDKs aren't properly conditionally compiled.

I'll see if I can get this stuff to work later today.

[floooh]

Ok, this should be fixed in #907, basically Intel Macs now use managed storage mode for all resource types (that's the same as it worked before I tried to be clever). On Apple GPUs (and generally on iOS) shared resource storage mode is used.

I'll merge this in a couple of hours.

[cai502]

Cool, thanks very much!

[floooh]

PS: I tested this on my mid-2014 13" MBP with Big Sur and Xcode 12, my M1 MBP, and the iOS simulator.