use ash::vk; fn find_graphics_queue_family( instance: &ash::Instance, physical_device: vk::PhysicalDevice, ) -> u32 { let queue_families = unsafe { instance.get_physical_device_queue_family_properties(physical_device) }; // find the most specialized transfer queue. for (index, queue_family) in queue_families.iter().enumerate() { if queue_family.queue_count > 0 && queue_family.queue_flags.contains(vk::QueueFlags::GRAPHICS) { return index as u32 } } return 0 } pub fn get_graphics_queue(instance: &ash::Instance, device: &ash::Device, physical_device: vk::PhysicalDevice) -> vk::Queue { let queue_family = find_graphics_queue_family(instance, physical_device); unsafe { device.get_device_queue(queue_family, 0) } }