Method setupInstance

examples/vulkan/Vulkan.cpp:405–505

Setup Vulkan instance

    // Setup Vulkan instance
    void setupInstance()
    {
        // Load bootstrap entry points
        gladLoadVulkan({}, getVulkanFunction);

        if (!vkCreateInstance)
        {
            vulkanAvailable = false;
            return;
        }

        // Retrieve the available instance layers
        std::uint32_t objectCount = 0;

        std::vector<VkLayerProperties> layers;

        if (vkEnumerateInstanceLayerProperties(&objectCount, nullptr) != VK_SUCCESS)
        {
            vulkanAvailable = false;
            return;
        }

        layers.resize(objectCount);

        if (vkEnumerateInstanceLayerProperties(&objectCount, layers.data()) != VK_SUCCESS)
        {
            vulkanAvailable = false;
            return;
        }

        // Activate the layers we are interested in
        std::vector<const char*> validationLayers;

        for (VkLayerProperties& layer : layers)
        {
            // VK_LAYER_LUNARG_standard_validation, meta-layer for the following layers:
            // -- VK_LAYER_GOOGLE_threading
            // -- VK_LAYER_LUNARG_parameter_validation
            // -- VK_LAYER_LUNARG_device_limits
            // -- VK_LAYER_LUNARG_object_tracker
            // -- VK_LAYER_LUNARG_image
            // -- VK_LAYER_LUNARG_core_validation
            // -- VK_LAYER_LUNARG_swapchain
            // -- VK_LAYER_GOOGLE_unique_objects
            // These layers perform error checking and warn about bad or sub-optimal Vulkan API usage
            // VK_LAYER_LUNARG_monitor appends an FPS counter to the window title
            if (std::string_view(layer.layerName) == "VK_LAYER_LUNARG_standard_validation")
            {
                validationLayers.push_back("VK_LAYER_LUNARG_standard_validation");
            }
            else if (std::string_view(layer.layerName) == "VK_LAYER_LUNARG_monitor")
            {
                validationLayers.push_back("VK_LAYER_LUNARG_monitor");
            }
        }

        // Retrieve the extensions we need to enable in order to use Vulkan with SFML
        std::vector<const char*> requiredExtensions = sf::Vulkan::getGraphicsRequiredInstanceExtensions();