Finalize input shutdown in the core

Eliminate trailing whitespace

Review changes 1

Review changes 2

Review changes 3

Review change 4

Review changes 5

src/core/system.cpp

@@ -28,7 +28,7 @@ void Init(EmuWindow* emu_window) {
 }
 
 void Shutdown() {
-    //InputCommon::Shutdown();
+    InputCommon::Shutdown();
     VideoCore::Shutdown();
     HLE::Shutdown();
     Kernel::Shutdown();

src/input_common/input_common.cpp

@@ -3,7 +3,10 @@
 // Refer to the license.txt file included.
 
 #include "input_common/input_common.h"
+
+#ifdef _SDL_H
     #include "input_common/sdl_input/sdl_input.h"
+#endif
 
 #include "core/core_timing.h"
 #include "core/settings.h"
@@ -35,17 +38,18 @@ std::string ControllerBase::GetDeviceName() const {
     return device_name;
 }
 
-
 const Service::HID::PadState ControllerBase::GetPadState() const {
     return controller.pad_state;
 }
 
 void Init(ControllerBackends backend) {
     switch (backend) {
+        #ifdef _SDL_H
             //SDL2 backend selected
             case SDL2_JOY:
                 g_user_input = new SDLController();
                 break;
+        #endif
 
         //No backend selected
         case NO_JOY:
@@ -57,8 +61,8 @@ void Init(ControllerBackends backend) {
     }
 
     //Shutdown immediately if backend failed to initialize
-    if((g_user_input != nullptr) && (!g_user_input->activated)) {
-        ShutDown();
+    if (g_user_input != nullptr && !g_user_input->activated) {
+        Shutdown();
         return;
     }
 
@@ -69,8 +73,8 @@ void Init(ControllerBackends backend) {
     CoreTiming::ScheduleEvent(frame_ticks, input_event);
 }
 
-void ShutDown() {
-    if((g_user_input != nullptr)
+void Shutdown() {
+    if (g_user_input != nullptr) {
         delete g_user_input;
         g_user_input = nullptr;
     }

src/input_common/input_common.h

@@ -30,7 +30,7 @@ public:
     virtual void Poll() = 0;
 
     /// Shuts down all backend related data
-    virtual void ShutDown() = 0;
+    virtual void Shutdown() = 0;
 
     /// Returns internal name of currently selected device. Expose this to the UI
     std::string GetDeviceName() const;
@@ -52,11 +52,9 @@ protected:
 void Init(ControllerBackends backend);
 
 /// Deactive the user input system
-void ShutDown();
+void Shutdown();
 
 /// InputCommon 'plugin'
 extern ControllerBase* g_user_input;
 
 } // namespace
-
-

src/input_common/sdl_input/sdl_input.cpp

@@ -22,7 +22,7 @@ SDLController::SDLController() {
 }
 
 SDLController::~SDLController() {
-    ShutDown();
+    Shutdown();
 }
 
 bool SDLController::Init() {
@@ -55,7 +55,7 @@ bool SDLController::Init() {
 
 void SDLController::DiscoverDevices() {}
 
-void SDLController::ShutDown() {
+void SDLController::Shutdown() {
     //Attempt to close joystick with SDL
     if (jpad != nullptr) {
         SDL_JoystickClose(jpad);
@@ -64,8 +64,8 @@ void SDLController::ShutDown() {
 
 void SDLController::Poll() {
     if (SDL_PollEvent(&input_event)) {
-        if((input_event.type == SDL_JOYBUTTONDOWN) || (input_event.type == SDL_JOYBUTTONUP) 
-        || (input_event.type == SDL_JOYAXISMOTION) || (input_event.type == SDL_JOYHATMOTION)) { 
+        if (input_event.type == SDL_JOYBUTTONDOWN || input_event.type == SDL_JOYBUTTONUP
+        || input_event.type == SDL_JOYAXISMOTION || input_event.type == SDL_JOYHATMOTION) {
             ProcessInput();
         }
     }

src/input_common/sdl_input/sdl_input.h

@@ -10,22 +10,22 @@
 
 namespace InputCommon {
 
-class SDLController  : virtual public ControllerBase {
+class SDLController final : public ControllerBase {
 public:
     SDLController();
     ~SDLController();
 
     /// Initializes input via SDL2
-    bool Init();
+    bool Init() override;
 
     /// Grabs a list of devices supported by the backend
-    void DiscoverDevices();
+    void DiscoverDevices() override;
 
     /// Grab and process input via SDL2
-    void Poll();
+    void Poll() override;
 
     /// Shuts down all joysticks opened by SDL2
-    void ShutDown();
+    void Shutdown() override;
 
     /// Processes input when polling
     void ProcessInput();
@@ -55,5 +55,3 @@ private:
 };
 
 } //namespace
-
-