From 0111e2707146a50a467b40b806cc10c498ea1d90 Mon Sep 17 00:00:00 2001
From: ManiacDC <trashbarrel2@gmail.com>
Date: Mon, 15 May 2017 08:32:21 -0400
Subject: [PATCH] Fix for slow DirectInput enumerations. Eliminates
 enumerations on generic DI8DEVTYPE_DEVICE and only checks to see if a devices
 is an XInputDevice for DI8DEVTYPE_GAMEPAD, DI8DEVTYPE_DRIVING,
 DI8DEVTYPE_JOYSTICK, and DI8DEVTYPE_FLIGHT.

---
 Source/nragev20/DirectInput.cpp | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/Source/nragev20/DirectInput.cpp b/Source/nragev20/DirectInput.cpp
index d7551c40e..faad248ff 100644
--- a/Source/nragev20/DirectInput.cpp
+++ b/Source/nragev20/DirectInput.cpp
@@ -678,8 +678,23 @@ BOOL CALLBACK EnumGetEffectTypes( LPCDIEFFECTINFO pdei, LPVOID pvRef )
 // EnumMakeDeviceList has been rewritten. --rabid
 BOOL CALLBACK EnumMakeDeviceList( LPCDIDEVICEINSTANCE lpddi, LPVOID pvRef )
 {
-	if( IsXInputDevice( &lpddi->guidProduct ) )		// Check if is XInput device --tecnicors
-        return DIENUM_CONTINUE;
+	switch (GET_DIDEVICE_TYPE(lpddi->dwDevType)) {
+	// we don't need to do anything with these generic devices
+	case DI8DEVTYPE_DEVICE:
+		return DIENUM_CONTINUE;
+		break;
+	// these are potential xinput controllers, check them
+	case DI8DEVTYPE_GAMEPAD:
+	case DI8DEVTYPE_DRIVING:
+	case DI8DEVTYPE_JOYSTICK:
+	case DI8DEVTYPE_FLIGHT:
+		if (IsXInputDevice(&lpddi->guidProduct))		// Check if is XInput device --tecnicors
+			return DIENUM_CONTINUE;
+		break;
+	// for all other devices, contine on
+	default:
+		break;
+	}
 
 	if (IsEqualGUID(g_sysMouse.guidInstance, lpddi->guidInstance))
 		return DIENUM_CONTINUE;