Function main

source/main.cpp:110–687

}

int main(int argc, char* argv[])
{
	// Make sure asset folder is present from the current working directory
	if (!std::filesystem::is_directory("assets")) {
		std::cerr << "Could not locate assets folder from current working directory\n";
		exit(-1);
	}
	chk(SDL_Init(SDL_INIT_VIDEO));
	chk(SDL_Vulkan_LoadLibrary(NULL));
	volkInitialize();
	// Instance
	VkApplicationInfo appInfo{ .sType = VK_STRUCTURE_TYPE_APPLICATION_INFO, .pApplicationName = "How to Vulkan", .apiVersion = VK_API_VERSION_1_3 };
	uint32_t instanceExtensionsCount{ 0 };
	char const* const* instanceExtensions{ SDL_Vulkan_GetInstanceExtensions(&instanceExtensionsCount) };
	VkInstanceCreateInfo instanceCI{
		.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
		.pApplicationInfo = &appInfo,
		.enabledExtensionCount = instanceExtensionsCount,
		.ppEnabledExtensionNames = instanceExtensions,
	};
	chk(vkCreateInstance(&instanceCI, nullptr, &instance));
	volkLoadInstance(instance);
	// Device
	uint32_t deviceCount{ 0 };
	chk(vkEnumeratePhysicalDevices(instance, &deviceCount, nullptr));
	std::vector<VkPhysicalDevice> devices(deviceCount);
	chk(vkEnumeratePhysicalDevices(instance, &deviceCount, devices.data()));
	uint32_t deviceIndex{ 0 };
	if (argc > 1) {
		deviceIndex = std::stoi(argv[1]);
		assert(deviceIndex < deviceCount);
	}
	VkPhysicalDeviceProperties2 deviceProperties{ .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2 };
	vkGetPhysicalDeviceProperties2(devices[deviceIndex], &deviceProperties);
	std::cout << "Selected device: " << deviceProperties.properties.deviceName << "\n";
	// Find a queue family for graphics
	uint32_t queueFamilyCount{ 0 };
	vkGetPhysicalDeviceQueueFamilyProperties(devices[deviceIndex], &queueFamilyCount, nullptr);
	std::vector<VkQueueFamilyProperties> queueFamilies(queueFamilyCount);
	vkGetPhysicalDeviceQueueFamilyProperties(devices[deviceIndex], &queueFamilyCount, queueFamilies.data());
	uint32_t queueFamily{ 0 };
	for (size_t i = 0; i < queueFamilies.size(); i++) {
		if (queueFamilies[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) {
			queueFamily = i;
			break;
		}
	}
	chk(SDL_Vulkan_GetPresentationSupport(instance, devices[deviceIndex], queueFamily));
	// Logical device
	const float qfpriorities{ 1.0f };
	VkDeviceQueueCreateInfo queueCI{ .sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO, .queueFamilyIndex = queueFamily, .queueCount = 1, .pQueuePriorities = &qfpriorities };
	VkPhysicalDeviceVulkan12Features enabledVk12Features{ .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_2_FEATURES, .descriptorIndexing = true, .shaderSampledImageArrayNonUniformIndexing = true, .descriptorBindingVariableDescriptorCount = true, .runtimeDescriptorArray = true, .bufferDeviceAddress = true };
	VkPhysicalDeviceVulkan13Features enabledVk13Features{ .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_3_FEATURES, .pNext = &enabledVk12Features, .synchronization2 = true, .dynamicRendering = true };
	VkPhysicalDeviceFeatures enabledVk10Features{ .samplerAnisotropy = VK_TRUE };
	const std::vector<const char*> deviceExtensions{ VK_KHR_SWAPCHAIN_EXTENSION_NAME };
	VkDeviceCreateInfo deviceCI{
		.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO,
		.pNext = &enabledVk13Features,