Implement sf::Vulkan functions

src/SFML.Window/Vulkan.cs

@@ -0,0 +1,49 @@
+using System;
+using System.Runtime.InteropServices;
+using System.Security;
+using SFML.System;
+
+namespace SFML.Window
+{
+    /// <summary>Vulkan helper functions</summary>
+    public static class Vulkan
+    {
+        ////////////////////////////////////////////////////////////
+        /// <summary>
+        /// Tell whether or not the system supports Vulkan
+        ///
+        /// This function should always be called before using
+        /// the Vulkan features. If it returns false, then
+        /// any attempt to use Vulkan will fail.
+        /// 
+        /// If only compute is required, set <paramref name="requireGraphics"/>
+        /// to false to skip checking for the extensions necessary
+        /// for graphics rendering.
+        /// </summary>
+        /// <param name="requireGraphics"> True to skip checking for graphics extensions, false otherwise </param>
+        /// <returns>True if Vulkan is supported, false otherwise</returns>
+        ////////////////////////////////////////////////////////////
+        public static bool IsAvailable(bool requireGraphics = true) => sfVulkan_isAvailable(requireGraphics);
+
+        ////////////////////////////////////////////////////////////
+        /// <summary>
+        /// Get the address of a Vulkan function
+        /// </summary>
+        /// <param name="name"> Name of the function to get the address of </param>
+        /// <returns>Address of the Vulkan function, <see cref="IntPtr.Zero"/> on failure</returns>
+        ////////////////////////////////////////////////////////////
+        public static IntPtr GetFunction(string name) => sfVulkan_getFunction(name);
+
+        // TODO: Implement GetGraphicsRequiredInstanceExtensions
+
+        #region Imports
+        [DllImport(CSFML.window, CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+        private static extern bool sfVulkan_isAvailable(bool requireGraphics);
+
+        [DllImport(CSFML.window, CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+        private static extern IntPtr sfVulkan_getFunction(string name);
+
+        // TODO: Import sfVulkan_getGraphicsRequiredInstanceExtensions
+        #endregion
+    }
+}