HW: Don't be responsible for g_controller_interface

Currently, `g_controller_interface` is initialized and shut down by each
of `GCKeyboard`, `GCPad`, `Wiimote`, and `HotkeyManager`.

This 1) is weird conceptually, because it necessitates passing a pointer
to the native window to each of those classes, which don't need it, and
2) can cause issues when controller backends are initialized or shutdown
multiple times in succession.

Source/Core/Core/Core.cpp

@@ -510,8 +510,9 @@ void EmuThread()
   bool init_controllers = false;
   if (!g_controller_interface.IsInit())
   {
-    Pad::Initialize(s_window_handle);
-    Keyboard::Initialize(s_window_handle);
+    g_controller_interface.Initialize(s_window_handle);
+    Pad::Initialize();
+    Keyboard::Initialize();
     init_controllers = true;
   }
   else
@@ -525,9 +526,9 @@ void EmuThread()
   if (core_parameter.bWii && !SConfig::GetInstance().m_bt_passthrough_enabled)
   {
     if (init_controllers)
-      Wiimote::Initialize(s_window_handle, !s_state_filename.empty() ?
-                                               Wiimote::InitializeMode::DO_WAIT_FOR_WIIMOTES :
-                                               Wiimote::InitializeMode::DO_NOT_WAIT_FOR_WIIMOTES);
+      Wiimote::Initialize(!s_state_filename.empty() ?
+                              Wiimote::InitializeMode::DO_WAIT_FOR_WIIMOTES :
+                              Wiimote::InitializeMode::DO_NOT_WAIT_FOR_WIIMOTES);
     else
       Wiimote::LoadConfig();
 
@@ -651,6 +652,7 @@ void EmuThread()
     Wiimote::Shutdown();
     Keyboard::Shutdown();
     Pad::Shutdown();
+    g_controller_interface.Shutdown();
     init_controllers = false;
   }
 

Source/Core/Core/HW/GCKeyboard.cpp

@@ -23,11 +23,9 @@ InputConfig* GetConfig()
 void Shutdown()
 {
   s_config.ClearControllers();
-
-  g_controller_interface.Shutdown();
 }
 
-void Initialize(void* const hwnd)
+void Initialize()
 {
   if (s_config.ControllersNeedToBeCreated())
   {
@@ -35,7 +33,6 @@ void Initialize(void* const hwnd)
       s_config.CreateController<GCKeyboard>(i);
   }
 
-  g_controller_interface.Initialize(hwnd);
   g_controller_interface.RegisterHotplugCallback(LoadConfig);
 
   // Load the saved controller config

Source/Core/Core/HW/GCKeyboard.h

@@ -12,7 +12,7 @@ struct KeyboardStatus;
 namespace Keyboard
 {
 void Shutdown();
-void Initialize(void* const hwnd);
+void Initialize();
 void LoadConfig();
 
 InputConfig* GetConfig();

Source/Core/Core/HW/GCPad.cpp

@@ -22,11 +22,9 @@ InputConfig* GetConfig()
 void Shutdown()
 {
   s_config.ClearControllers();
-
-  g_controller_interface.Shutdown();
 }
 
-void Initialize(void* const hwnd)
+void Initialize()
 {
   if (s_config.ControllersNeedToBeCreated())
   {
@@ -34,7 +32,6 @@ void Initialize(void* const hwnd)
       s_config.CreateController<GCPad>(i);
   }
 
-  g_controller_interface.Initialize(hwnd);
   g_controller_interface.RegisterHotplugCallback(LoadConfig);
 
   // Load the saved controller config

Source/Core/Core/HW/GCPad.h

@@ -13,7 +13,7 @@ struct GCPadStatus;
 namespace Pad
 {
 void Shutdown();
-void Initialize(void* const hwnd);
+void Initialize();
 void LoadConfig();
 
 InputConfig* GetConfig();

Source/Core/Core/HW/Wiimote.cpp

@@ -24,11 +24,9 @@ void Shutdown()
   s_config.ClearControllers();
 
   WiimoteReal::Stop();
-
-  g_controller_interface.Shutdown();
 }
 
-void Initialize(void* const hwnd, InitializeMode init_mode)
+void Initialize(InitializeMode init_mode)
 {
   if (s_config.ControllersNeedToBeCreated())
   {
@@ -36,7 +34,6 @@ void Initialize(void* const hwnd, InitializeMode init_mode)
       s_config.CreateController<WiimoteEmu::Wiimote>(i);
   }
 
-  g_controller_interface.Initialize(hwnd);
   g_controller_interface.RegisterHotplugCallback(LoadConfig);
 
   s_config.LoadConfig(false);

Source/Core/Core/HW/Wiimote.h

@@ -42,7 +42,7 @@ enum class InitializeMode
 };
 
 void Shutdown();
-void Initialize(void* const hwnd, InitializeMode init_mode);
+void Initialize(InitializeMode init_mode);
 void ResetAllWiimotes();
 void LoadConfig();
 void Resume();

Source/Core/Core/HotkeyManager.cpp

@@ -182,12 +182,11 @@ bool IsPressed(int Id, bool held)
   return false;
 }
 
-void Initialize(void* const hwnd)
+void Initialize()
 {
   if (s_config.ControllersNeedToBeCreated())
     s_config.CreateController<HotkeyManager>();
 
-  g_controller_interface.Initialize(hwnd);
   g_controller_interface.RegisterHotplugCallback(LoadConfig);
 
   // load the saved controller config
@@ -207,8 +206,6 @@ void LoadConfig()
 void Shutdown()
 {
   s_config.ClearControllers();
-
-  g_controller_interface.Shutdown();
 }
 }
 

Source/Core/Core/HotkeyManager.h

@@ -155,7 +155,7 @@ private:
 
 namespace HotkeyManagerEmu
 {
-void Initialize(void* const hwnd);
+void Initialize();
 void Shutdown();
 void LoadConfig();
 

Source/Core/DolphinWX/Frame.cpp

@@ -333,19 +333,16 @@ bool CFrame::InitControllers()
   if (!g_controller_interface.IsInit())
   {
 #if defined(HAVE_X11) && HAVE_X11
-    Window win = X11Utils::XWindowFromHandle(GetHandle());
-    Pad::Initialize(reinterpret_cast<void*>(win));
-    Keyboard::Initialize(reinterpret_cast<void*>(win));
-    Wiimote::Initialize(reinterpret_cast<void*>(win),
-                        Wiimote::InitializeMode::DO_NOT_WAIT_FOR_WIIMOTES);
-    HotkeyManagerEmu::Initialize(reinterpret_cast<void*>(win));
+    void* win = reinterpret_cast<void*>(X11Utils::XWindowFromHandle(GetHandle()));
 #else
-    Pad::Initialize(reinterpret_cast<void*>(GetHandle()));
-    Keyboard::Initialize(reinterpret_cast<void*>(GetHandle()));
-    Wiimote::Initialize(reinterpret_cast<void*>(GetHandle()),
-                        Wiimote::InitializeMode::DO_NOT_WAIT_FOR_WIIMOTES);
-    HotkeyManagerEmu::Initialize(reinterpret_cast<void*>(GetHandle()));
+    void* win = reinterpret_cast<void*>(GetHandle());
 #endif
+    g_controller_interface.Initialize(win);
+    Pad::Initialize();
+    Keyboard::Initialize();
+    Wiimote::Initialize(Wiimote::InitializeMode::DO_NOT_WAIT_FOR_WIIMOTES);
+    HotkeyManagerEmu::Initialize();
+
     return true;
   }
   return false;
@@ -547,6 +544,7 @@ CFrame::~CFrame()
   Keyboard::Shutdown();
   Pad::Shutdown();
   HotkeyManagerEmu::Shutdown();
+  g_controller_interface.Shutdown();
 
   drives.clear();