···11+st/gui: Refactor a few OpenGL drawing code into helper.
+4
doc/changes/xrt/mr.1957.md
···11+Add `xrt_limited_unique_id` and `xrt_limited_unique_id_t` types to donate a
22+special id that is unique to the current process. Use that to decorate
33+`xrt_swapchain_native` with a limited unique id, useful for caching of the
44+`xrt_image_native` imports of swapchains and other objects.