Added paddle mapping for combined Joy-Cons

src/joystick/SDL_gamecontroller.c

@@ -609,9 +609,9 @@ static ControllerMapping_t *SDL_CreateMappingForHIDAPIController(SDL_JoystickGUI
             if (SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI_VERTICAL_JOY_CONS, SDL_FALSE)) {
                 /* Vertical mode */
                 if (guid.data[15] == k_eSwitchDeviceInfoControllerType_JoyConLeft) {
-                    SDL_strlcat(mapping_string, "back:b4,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,leftshoulder:b9,leftstick:b7,lefttrigger:a4,leftx:a0,lefty:a1,misc1:b15,", sizeof(mapping_string));
+                    SDL_strlcat(mapping_string, "back:b4,dpdown:b12,dpleft:b13,dpright:b14,dpup:b11,leftshoulder:b9,leftstick:b7,lefttrigger:a4,leftx:a0,lefty:a1,misc1:b15,paddle2:b17,paddle4:b19,", sizeof(mapping_string));
                 } else {
-                    SDL_strlcat(mapping_string, "a:b0,b:b1,guide:b5,rightshoulder:b10,rightstick:b8,righttrigger:a5,rightx:a2,righty:a3,start:b6,x:b2,y:b3,", sizeof(mapping_string));
+                    SDL_strlcat(mapping_string, "a:b0,b:b1,guide:b5,rightshoulder:b10,rightstick:b8,righttrigger:a5,rightx:a2,righty:a3,start:b6,x:b2,y:b3,paddle1:b16,paddle3:b18,", sizeof(mapping_string));
                 }
             } else {
                 /* Mini gamepad mode */
@@ -633,8 +633,8 @@ static ControllerMapping_t *SDL_CreateMappingForHIDAPIController(SDL_JoystickGUI
             /* Steam controllers have 2 back paddle buttons */
             SDL_strlcat(mapping_string, "paddle1:b16,paddle2:b15,", sizeof(mapping_string));
         } else if (SDL_IsJoystickNintendoSwitchJoyConPair(vendor, product)) {
-            /* The Nintendo Switch Joy-Con combined controller has a share button */
-            SDL_strlcat(mapping_string, "misc1:b15,", sizeof(mapping_string));
+            /* The Nintendo Switch Joy-Con combined controller has a share button and paddles */
+            SDL_strlcat(mapping_string, "misc1:b15,paddle1:b16,paddle2:b17,paddle3:b18,paddle4:b19,", sizeof(mapping_string));
         } else {
             switch (SDL_GetJoystickGameControllerTypeFromGUID(guid, NULL)) {
             case SDL_CONTROLLER_TYPE_PS4: