VKQueueFamilyIndices.h

#pragma once

#define GLFW_INCLUDE_VULKAN
#include <GLFW/glfw3.h>
#include <vector>

class VKQueueFamilyIndices {

	public:

		int graphicsFamily = -1;
		int presentFamily = -1;

		bool isComplete() { return graphicsFamily >= 0 && presentFamily >= 0; }

		static VKQueueFamilyIndices findQueueFamilies( VkPhysicalDevice device, VkSurfaceKHR &surface ) {

			VKQueueFamilyIndices indices;

			uint32_t queueFamilyCount = 0;
			vkGetPhysicalDeviceQueueFamilyProperties(device, &queueFamilyCount, nullptr);

			std::vector<VkQueueFamilyProperties> queueFamilies(queueFamilyCount);
			vkGetPhysicalDeviceQueueFamilyProperties(device, &queueFamilyCount, queueFamilies.data());

			int i = 0;
			for (const auto& queueFamily : queueFamilies) {
				if (queueFamily.queueCount > 0 && queueFamily.queueFlags & VK_QUEUE_GRAPHICS_BIT) {
					indices.graphicsFamily = i;
				}

				VkBool32 presentSupport = false;
				vkGetPhysicalDeviceSurfaceSupportKHR( device, i, surface, &presentSupport);

				if (queueFamily.queueCount > 0 && presentSupport) {
					indices.presentFamily = i;
				}

				if (indices.isComplete()) {
					break;
				}

				i++;
			}

			return indices;


		}
	
};