Surface Resizing in Vulkan
Or more accurately how to detect that a surface has been resized when using
Vulkan and the Wayland extension (VK_KHR_wayland_surface). In some WSI
(Window System Integration) extensions the WSI will provide an error code
VK_ERROR_OUT_OF_DATE_KHR or VK_SUBOPTIMAL_KHR upon return of
vkQueuePresentKHR. This is not guaranteed though as indicated in
Handling resizes explicitly.
The implementation of extension
VK_KHR_xcb_surface (x11_present_to_x11_sw)
and
VK_KHR_wayland_surface (wsi_wl_swapchain_queue_present)
in mesa show how the geometry of the surface is only checked by the XCB
implementation and not Wayland.
Wayland is an asynchronous protocol and calls to a Wayland compositor are
permitted only in certain circumstances, during the call to vkQueuePresentKHR
is one of those times but actual detection of a resize event might be difficult
since a callback must be registered. I don't see why that would be so much of a
problem but maybe there is something I do not know.