Merge pull request #137 from death-droid/NRageChanges

Change XInput to be loaded into memory at startup rather than every time...

Source/nragev20/NRagePluginV2.cpp

@@ -44,6 +44,7 @@ DWORD WINAPI DelayedShortcut(LPVOID lpParam);
 
 // Global Variables //
 HMODULE g_hDirectInputDLL = NULL;	// Handle to DirectInput8 library
+HMODULE g_hXInputDLL = NULL;		// Handle to XInput Library
 HMODULE g_hResourceDLL = NULL;		// Handle to resource library; used by LoadString for internationalization
 HANDLE g_hHeap = NULL;				// Handle to our heap
 int g_nDevices = 0;					// number of devices in g_devList
@@ -215,6 +216,15 @@ EXPORT void CALL DllConfig ( HWND hParent )
 		}
 	}
 
+	if (g_hXInputDLL == NULL)
+	{
+		if (!InitXinput())
+		{
+			//TODO Disable ability to set XInput
+			//TODO Make XInput and DirectInput settings same page
+		}
+	}
+
 	if( g_pDIHandle && !g_bConfiguring )
 	{	
 		g_bConfiguring = true;
@@ -324,6 +334,15 @@ EXPORT void CALL InitiateControllers (CONTROL_INFO * ControlInfo)
 			return;
 	}
 
+	if (g_hXInputDLL == NULL)
+	{
+		if (!InitXinput())
+		{
+			//TODO Disable ability to set XInput
+			//TODO Make XInput and DirectInput settings same page
+		}
+	}
+
 	int iDevice;
 
 	EnterCriticalSection( &g_critical );
@@ -761,7 +780,7 @@ EXPORT void CALL CloseDLL (void)
 	// ZeroMemory( g_pcControllers, sizeof(g_pcControllers) ); // why zero the memory if we're just going to close down?
 	
 	FreeDirectInput();
-
+	FreeXinput();
 	return;
 }
 

Source/nragev20/NRagePluginV2.h

@@ -362,6 +362,7 @@ typedef struct _MSHORTCUT {
 
 extern HANDLE g_hHeap;
 extern HMODULE g_hDirectInputDLL;
+extern HMODULE g_hXInputDLL;
 extern HMODULE g_hResourceDLL;
 extern EMULATOR_INFO g_strEmuInfo;
 extern TCHAR g_aszDefFolders[3][MAX_PATH];

Source/nragev20/XInputController.cpp

@@ -306,20 +306,40 @@ void VibrateXInputController( DWORD nController, int LeftMotorVal, int RightMoto
 	fnXInputSetState(nController, &vibration);
 }
 
-bool InitiateXInputController( LPXCONTROLLER gController, int nControl )
+bool InitXinput()
 {
-	HMODULE hInput = LoadLibrary("Xinput1_4.dll");
-	if (hInput == NULL)
+	//Lets dynamically load in the XInput library
+	if (g_hXInputDLL == NULL)
+		g_hXInputDLL = LoadLibrary("Xinput1_4.dll");
+
+	if (g_hXInputDLL == NULL)
 	{
-		hInput = LoadLibrary("Xinput9_1_0.dll");
+		//Ok since 1.4 is present, try 9.1.0 as its present on Vista and newer
+		g_hXInputDLL = LoadLibrary("Xinput9_1_0.dll");
 	}
-	if (hInput == NULL)
+	if (g_hXInputDLL == NULL)
 	{
 		return false;
 	}
 
-	fnXInputSetState = (DWORD(WINAPI *) (DWORD, XINPUT_VIBRATION*))GetProcAddress(hInput, "XInputSetState");
-	fnXInputGetState = (DWORD(WINAPI *) (DWORD, XINPUT_STATE*))GetProcAddress(hInput, "XInputGetState");
+	//Prepare the functions where going to use, nice and simple for XInput
+	fnXInputSetState = (DWORD(WINAPI *) (DWORD, XINPUT_VIBRATION*))GetProcAddress(g_hXInputDLL, "XInputSetState");
+	fnXInputGetState = (DWORD(WINAPI *) (DWORD, XINPUT_STATE*))GetProcAddress(g_hXInputDLL, "XInputGetState");
+	return true;
+}
+
+void FreeXinput()
+{
+	//Unload the Library
+	if (g_hXInputDLL != NULL)
+	{
+		FreeLibrary(g_hXInputDLL);
+		g_hXInputDLL = NULL;
+	}
+}
+
+bool InitiateXInputController( LPXCONTROLLER gController, int nControl )
+{
 	if (fnXInputGetState == NULL || fnXInputSetState == NULL)
 	{
 		return false;

Source/nragev20/XInputController.h

@@ -105,6 +105,10 @@ typedef struct _XCONTROLLER		// XInput controller struct
 
 typedef XCONTROLLER *LPXCONTROLLER;
 
+//Initiates XInput library
+bool InitXinput();
+//Free the Xinput library
+void FreeXinput();
 // Sets the keys pressed for Xinput controller gController, into keys.
 void GetXInputControllerKeys( const int indexController, LPDWORD Keys );
 // Sets the default keys for Xinput controller gController.