Add ISurfaceProvider

Author: Perksey

sources/Windowing/Common/Hosting/ISurfaceHost.cs

@@ -15,7 +15,7 @@ namespace Silk.NET.Windowing.Hosting;
 /// assembly's main function.
 /// </remarks>
 [MockStaticAbstract]
-public interface ISurfaceHost
+public interface ISurfaceHost : ISurfaceProvider
 {
     /// <summary>
     /// Whether multiple surfaces can be spawned as children of the first surface created.

sources/Windowing/Common/ISurfaceProvider.cs

@@ -0,0 +1,19 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+namespace Silk.NET.Windowing;
+
+/// <summary>
+/// Represents a windowing backend that can provide surfaces.
+/// </summary>
+public interface ISurfaceProvider
+{
+    /// <summary>
+    /// Creates a surface with the given configuration.
+    /// </summary>
+    /// <param name="config">The configuration for the surface..</param>
+    /// <typeparam name="TExtra">The type of the configuration for the surface.</typeparam>
+    /// <returns>The surface.</returns>
+    static abstract Surface Create<TExtra>(TExtra config)
+        where TExtra : IConfigureHost;
+}

sources/Windowing/Common/Surface.cs

@@ -50,6 +50,7 @@ public static Surface Create<TExtra, TImpl>(TExtra config)
     /// <typeparam name="TExtra">The type of the configuration for the surface.</typeparam>
     /// <typeparam name="TImpl">The surface implementation.</typeparam>
     /// <returns>The surface.</returns>
+    /// <remarks>This is not recommended for use if you intend to create multiple windows.</remarks>
     public static Surface<TImpl> CreateSingleThreaded<TExtra, TImpl>(TExtra config)
         where TExtra : IConfigureHost
         where TImpl : ISurfaceHost => Surface<TImpl>.Create(config);