Added PSP Accept/Cance

src/dusksdl2/input/inputsdl2.c

@@ -73,6 +73,11 @@ float_t inputButtonGetValueSDL2(const inputbutton_t button) {
 
     #ifdef DUSK_INPUT_GAMEPAD
       case INPUT_BUTTON_TYPE_GAMEPAD: {
+        assertTrue(
+          button.gpButton < SDL_CONTROLLER_BUTTON_MAX,
+          "Gamepad button out of range"
+        );
+
         if(SDL_GameControllerGetButton(
           INPUT.platform.controller, button.gpButton
         )) {