Assertion `imagesInFlight == get_config_number_of_presentable_images()' fails in certain conditions

[libreliu]

Hi,

Thanks for the awesome library!

I'm using ArchLinux, and it seems when using AMD Integrated Graphics + mesa radv vulkan + kwin (wayland) , the assertion under avk::window::construct_backbuffers() will fail for the initial window creation.

Looking into the problem, it seems at least for some of the mesa-implemented vulkan drivers, the driver reports surface capabilities with minImageCount=3, maxImageCount=0, but taking 3 into the SwapChainCreateInfo will result in a swapchain with 5 images.

It seems that the same issue is also addressed in issues in a fork of mesa. According to Vulkan spec, it seems that implementations are able to create a swapchain with more images than requested.

A quick walkaround would be setting mainWnd->set_number_of_presentable_images(5u); from user side. But I think this might be worth noted in case someone ran into the same problem.

Thanks!