Added acanline rendering. Fixed interrupts. Added XInput support

Desktop/Controller.cs

@@ -0,0 +1,27 @@
+using System.Runtime.InteropServices;
+
+public static class XInput
+{
+    // Reach into the Windows OS API
+    [DllImport("xinput1_4.dll")]
+    public static extern int XInputGetState(int dwUserIndex, out XINPUT_STATE pState);
+
+    [StructLayout(LayoutKind.Sequential)]
+    public struct XINPUT_STATE
+    {
+        public uint dwPacketNumber;
+        public XINPUT_GAMEPAD Gamepad;
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    public struct XINPUT_GAMEPAD
+    {
+        public ushort wButtons;
+        public byte bLeftTrigger;
+        public byte bRightTrigger;
+        public short sThumbLX;
+        public short sThumbLY;
+        public short sThumbRX;
+        public short sThumbRY;
+    }
+}