ANGLE+DXGI experiment, window/GL init rewrite (#1982)

Robust.Client/Utility/ClientDllMap.cs

@@ -0,0 +1,40 @@
+using System;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace Robust.Client.Utility
+{
+    internal static class ClientDllMap
+    {
+        [ModuleInitializer]
+        internal static void Initialize()
+        {
+            if (OperatingSystem.IsWindows())
+                return;
+
+            NativeLibrary.SetDllImportResolver(typeof(ClientDllMap).Assembly, (name, assembly, path) =>
+            {
+                if (name == "swnfd.dll")
+                {
+                    if (OperatingSystem.IsLinux())
+                        return NativeLibrary.Load("libswnfd.so", assembly, path);
+
+                    if (OperatingSystem.IsMacOS())
+                        return NativeLibrary.Load("libswnfd.dylib", assembly, path);
+
+                    return IntPtr.Zero;
+                }
+
+                if (name == "libEGL.dll")
+                {
+                    if (OperatingSystem.IsLinux())
+                        return NativeLibrary.Load("libEGL.so", assembly, path);
+
+                    return IntPtr.Zero;
+                }
+
+                return IntPtr.Zero;
+            });
+        }
+    }
+}