Method isAvailable

src/SFML/Window/Win32/VulkanImplWin32.cpp:108–162

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{
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bool VulkanImpl::isAvailable(bool requireGraphics)
{
    static bool checked           = false;
    static bool computeAvailable  = false;
    static bool graphicsAvailable = false;

    if (!checked)
    {
        checked = true;

        // Check if the library is available
        computeAvailable = wrapper.loadLibrary();

        // To check for instance extensions we don't need to differentiate between graphics and compute
        graphicsAvailable = computeAvailable;

        if (graphicsAvailable)
        {
            // Retrieve the available instance extensions
            std::vector<VkExtensionProperties> extensionProperties;

            std::uint32_t extensionCount = 0;

            wrapper.vkEnumerateInstanceExtensionProperties(nullptr, &extensionCount, nullptr);

            extensionProperties.resize(extensionCount);

            wrapper.vkEnumerateInstanceExtensionProperties(nullptr, &extensionCount, extensionProperties.data());

            // Check if the necessary extensions are available
            bool hasVkKhrSurface         = false;
            bool hasVkKhrPlatformSurface = false;

            for (const VkExtensionProperties& properties : extensionProperties)
            {
                if (std::string_view(properties.extensionName) == VK_KHR_SURFACE_EXTENSION_NAME)
                {
                    hasVkKhrSurface = true;
                }
                else if (std::string_view(properties.extensionName) == VK_KHR_WIN32_SURFACE_EXTENSION_NAME)
                {
                    hasVkKhrPlatformSurface = true;
                }
            }

            if (!hasVkKhrSurface || !hasVkKhrPlatformSurface)
                graphicsAvailable = false;
        }
    }

    if (requireGraphics)
        return graphicsAvailable;

    return computeAvailable;
}


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