This doesn't map directly to any particular Vulkan object but is,
instead, a base class for the internal implementations of both VkFence
and VkSemaphore. Its utility will become evident in later patches.
The design of vk_sync will look familiar to anyone with significant
experience in DRM. The base object itself is just a pointer to a vfunc
table with function pointers providing the implementation of the various
operations. Depending on how the vk_sync will be used some of of those
vfuncs are optional. If it's only going to be used for VkSemaphore, for
instance, there's no need for reset().
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13427>
Jason Ekstrand
3cf5fced4c