1 files changed, 178 insertions, 0 deletions
diff --git a/src/Ryujinx.Gtk3/Input/GTK3/GTK3MappingHelper.cs b/src/Ryujinx.Gtk3/Input/GTK3/GTK3MappingHelper.cs
new file mode 100644
index 00000000..422a9603
--- /dev/null
+++ b/src/Ryujinx.Gtk3/Input/GTK3/GTK3MappingHelper.cs
@@ -0,0 +1,178 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using GtkKey = Gdk.Key;
+
+namespace Ryujinx.Input.GTK3
+{
+    public static class GTK3MappingHelper
+    {
+        private static readonly GtkKey[] _keyMapping = new GtkKey[(int)Key.Count]
+        {
+            // NOTE: invalid
+            GtkKey.blank,
+
+            GtkKey.Shift_L,
+            GtkKey.Shift_R,
+            GtkKey.Control_L,
+            GtkKey.Control_R,
+            GtkKey.Alt_L,
+            GtkKey.Alt_R,
+            GtkKey.Super_L,
+            GtkKey.Super_R,
+            GtkKey.Menu,
+            GtkKey.F1,
+            GtkKey.F2,
+            GtkKey.F3,
+            GtkKey.F4,
+            GtkKey.F5,
+            GtkKey.F6,
+            GtkKey.F7,
+            GtkKey.F8,
+            GtkKey.F9,
+            GtkKey.F10,
+            GtkKey.F11,
+            GtkKey.F12,
+            GtkKey.F13,
+            GtkKey.F14,
+            GtkKey.F15,
+            GtkKey.F16,
+            GtkKey.F17,
+            GtkKey.F18,
+            GtkKey.F19,
+            GtkKey.F20,
+            GtkKey.F21,
+            GtkKey.F22,
+            GtkKey.F23,
+            GtkKey.F24,
+            GtkKey.F25,
+            GtkKey.F26,
+            GtkKey.F27,
+            GtkKey.F28,
+            GtkKey.F29,
+            GtkKey.F30,
+            GtkKey.F31,
+            GtkKey.F32,
+            GtkKey.F33,
+            GtkKey.F34,
+            GtkKey.F35,
+            GtkKey.Up,
+            GtkKey.Down,
+            GtkKey.Left,
+            GtkKey.Right,
+            GtkKey.Return,
+            GtkKey.Escape,
+            GtkKey.space,
+            GtkKey.Tab,
+            GtkKey.BackSpace,
+            GtkKey.Insert,
+            GtkKey.Delete,
+            GtkKey.Page_Up,
+            GtkKey.Page_Down,
+            GtkKey.Home,
+            GtkKey.End,
+            GtkKey.Caps_Lock,
+            GtkKey.Scroll_Lock,
+            GtkKey.Print,
+            GtkKey.Pause,
+            GtkKey.Num_Lock,
+            GtkKey.Clear,
+            GtkKey.KP_0,
+            GtkKey.KP_1,
+            GtkKey.KP_2,
+            GtkKey.KP_3,
+            GtkKey.KP_4,
+            GtkKey.KP_5,
+            GtkKey.KP_6,
+            GtkKey.KP_7,
+            GtkKey.KP_8,
+            GtkKey.KP_9,
+            GtkKey.KP_Divide,
+            GtkKey.KP_Multiply,
+            GtkKey.KP_Subtract,
+            GtkKey.KP_Add,
+            GtkKey.KP_Decimal,
+            GtkKey.KP_Enter,
+            GtkKey.a,
+            GtkKey.b,
+            GtkKey.c,
+            GtkKey.d,
+            GtkKey.e,
+            GtkKey.f,
+            GtkKey.g,
+            GtkKey.h,
+            GtkKey.i,
+            GtkKey.j,
+            GtkKey.k,
+            GtkKey.l,
+            GtkKey.m,
+            GtkKey.n,
+            GtkKey.o,
+            GtkKey.p,
+            GtkKey.q,
+            GtkKey.r,
+            GtkKey.s,
+            GtkKey.t,
+            GtkKey.u,
+            GtkKey.v,
+            GtkKey.w,
+            GtkKey.x,
+            GtkKey.y,
+            GtkKey.z,
+            GtkKey.Key_0,
+            GtkKey.Key_1,
+            GtkKey.Key_2,
+            GtkKey.Key_3,
+            GtkKey.Key_4,
+            GtkKey.Key_5,
+            GtkKey.Key_6,
+            GtkKey.Key_7,
+            GtkKey.Key_8,
+            GtkKey.Key_9,
+            GtkKey.grave,
+            GtkKey.grave,
+            GtkKey.minus,
+            GtkKey.plus,
+            GtkKey.bracketleft,
+            GtkKey.bracketright,
+            GtkKey.semicolon,
+            GtkKey.quoteright,
+            GtkKey.comma,
+            GtkKey.period,
+            GtkKey.slash,
+            GtkKey.backslash,
+
+            // NOTE: invalid
+            GtkKey.blank,
+        };
+
+        private static readonly Dictionary<GtkKey, Key> _gtkKeyMapping;
+
+        static GTK3MappingHelper()
+        {
+            var inputKeys = Enum.GetValues<Key>().SkipLast(1);
+
+            // GtkKey is not contiguous and quite large, so use a dictionary instead of an array.
+            _gtkKeyMapping = new Dictionary<GtkKey, Key>();
+
+            foreach (var key in inputKeys)
+            {
+                var index = ToGtkKey(key);
+                _gtkKeyMapping[index] = key;
+            }
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static GtkKey ToGtkKey(Key key)
+        {
+            return _keyMapping[(int)key];
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static Key ToInputKey(GtkKey key)
+        {
+            return _gtkKeyMapping.GetValueOrDefault(key, Key.Unknown);
+        }
+    }
+}