Implement Rumble Pak support. (#2101)

src/frontend/qt_sdl/EmuInstance.h

@@ -127,6 +127,8 @@ public:
     void inputInit();
     void inputDeInit();
     void inputLoadConfig();
+    void inputRumbleStart(melonDS::u32 len_ms);
+    void inputRumbleStop();
 
     void setJoystick(int id);
     int getJoystickID() { return joystickID; }
@@ -291,6 +293,9 @@ private:
 
     int joystickID;
     SDL_Joystick* joystick;
+    SDL_GameController* controller;
+    bool hasRumble = false;
+    bool isRumbling = false;
 
     melonDS::u32 keyInputMask, joyInputMask;
     melonDS::u32 keyHotkeyMask, joyHotkeyMask;

src/frontend/qt_sdl/EmuInstanceInput.cpp

@@ -72,6 +72,9 @@ void EmuInstance::inputInit()
     lastHotkeyMask = 0;
 
     joystick = nullptr;
+    controller = nullptr;
+    hasRumble = false;
+    isRumbling = false;
     inputLoadConfig();
 }
 
@@ -100,6 +103,24 @@ void EmuInstance::inputLoadConfig()
     setJoystick(localCfg.GetInt("JoystickID"));
 }
 
+void EmuInstance::inputRumbleStart(melonDS::u32 len_ms)
+{
+    if (controller && hasRumble && !isRumbling)
+    {
+	SDL_GameControllerRumble(controller, 0xFFFF, 0xFFFF, len_ms);
+	isRumbling = true;
+    }
+}
+
+void EmuInstance::inputRumbleStop()
+{
+    if (controller && hasRumble && isRumbling)
+    {
+	SDL_GameControllerRumble(controller, 0, 0, 0);
+	isRumbling = false;
+    }
+}
+
 
 void EmuInstance::setJoystick(int id)
 {
@@ -109,12 +130,16 @@ void EmuInstance::setJoystick(int id)
 
 void EmuInstance::openJoystick()
 {
+    if (controller) SDL_GameControllerClose(controller);
+
     if (joystick) SDL_JoystickClose(joystick);
 
     int num = SDL_NumJoysticks();
     if (num < 1)
     {
+	controller = nullptr;
         joystick = nullptr;
+	hasRumble = false;
         return;
     }
 
@@ -122,10 +147,30 @@ void EmuInstance::openJoystick()
         joystickID = 0;
 
     joystick = SDL_JoystickOpen(joystickID);
+
+    if (SDL_IsGameController(joystickID))
+    {
+	controller = SDL_GameControllerOpen(joystickID);
+    }
+
+    if (controller)
+    {
+	if (SDL_GameControllerHasRumble(controller))
+	{
+	    hasRumble = true;
+	}
+    }
 }
 
 void EmuInstance::closeJoystick()
 {
+    if (controller)
+    {
+	SDL_GameControllerClose(controller);
+	controller = nullptr;
+	hasRumble = false;
+    }
+
     if (joystick)
     {
         SDL_JoystickClose(joystick);

src/frontend/qt_sdl/Platform.cpp

@@ -538,6 +538,16 @@ void Camera_CaptureFrame(int num, u32* frame, int width, int height, bool yuv, v
     return camManager[num]->captureFrame(frame, width, height, yuv);
 }
 
+void Addon_RumbleStart(u32 len, void* userdata)
+{
+    ((EmuInstance*)userdata)->inputRumbleStart(len);
+}
+
+void Addon_RumbleStop(void* userdata)
+{
+    ((EmuInstance*)userdata)->inputRumbleStop();
+}
+
 DynamicLibrary* DynamicLibrary_Load(const char* lib)
 {
     return (DynamicLibrary*) SDL_LoadObject(lib);

src/frontend/qt_sdl/Window.cpp

@@ -312,6 +312,10 @@ MainWindow::MainWindow(int id, EmuInstance* inst, QWidget* parent) :
             actInsertGBAAddon[0] = submenu->addAction("Memory expansion");
             actInsertGBAAddon[0]->setData(QVariant(GBAAddon_RAMExpansion));
             connect(actInsertGBAAddon[0], &QAction::triggered, this, &MainWindow::onInsertGBAAddon);
+
+            actInsertGBAAddon[1] = submenu->addAction("Rumble Pak");
+            actInsertGBAAddon[1]->setData(QVariant(GBAAddon_RumblePak));
+            connect(actInsertGBAAddon[1], &QAction::triggered, this, &MainWindow::onInsertGBAAddon);
         }
 
         actEjectGBACart = menu->addAction("Eject cart");

src/frontend/qt_sdl/Window.h

@@ -258,7 +258,7 @@ public:
     QAction* actEjectCart;
     QAction* actCurrentGBACart;
     QAction* actInsertGBACart;
-    QAction* actInsertGBAAddon[1];
+    QAction* actInsertGBAAddon[2];
     QAction* actEjectGBACart;
     QAction* actImportSavefile;
     QAction* actSaveState[9];