The vulkan loader doesn't load layers for apps that require a newer
version of vulkan, so this layer didn't get loaded for vulkan 1.2 apps.
I would like to just stick 1.09 in there but it might be worth
validating it works at new version of vulkan I suppose and the major
doesn't revise that often
Fixes: 9bc5b2d169 ("vulkan: add initial device selection layer. (v6)")
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8508>
This is code Bas has out of tree but I think mesa should be shipping it, and I've improved it.
Initially-written-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
v2: add infinite recursion fix (Bas)
v3: Fix wayland/xcb barrier, whitespace
v4: use a macro for getting apis, shorten some lines, use outarray
v5: rewrite in C, use hash_table/mutex.
v6: use once_init to init the mutex, fix freeing ht
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/1766>