diff --git a/src/joystick/SDL_gamepad.c b/src/joystick/SDL_gamepad.c index 049a6857f..2048ecba6 100644 --- a/src/joystick/SDL_gamepad.c +++ b/src/joystick/SDL_gamepad.c @@ -754,9 +754,12 @@ static ControllerMapping_t *SDL_PrivateMatchControllerMappingForGUID(SDL_Joystic if (SDL_memcmp(&guid, &mapping_guid, sizeof(guid)) == 0) { Uint16 mapping_crc = 0; - const char *crc_string = SDL_strstr(mapping->mapping, SDL_GAMEPAD_CRC_FIELD); - if (crc_string) { - mapping_crc = (Uint16)SDL_strtol(crc_string + SDL_GAMEPAD_CRC_FIELD_SIZE, NULL, 16); + + if (match_crc) { + const char *crc_string = SDL_strstr(mapping->mapping, SDL_GAMEPAD_CRC_FIELD); + if (crc_string) { + mapping_crc = (Uint16)SDL_strtol(crc_string + SDL_GAMEPAD_CRC_FIELD_SIZE, NULL, 16); + } } if (crc == mapping_crc) { return mapping; @@ -769,7 +772,7 @@ static ControllerMapping_t *SDL_PrivateMatchControllerMappingForGUID(SDL_Joystic /* * Helper function to scan the mappings database for a gamepad with the specified GUID */ -static ControllerMapping_t *SDL_PrivateGetControllerMappingForGUID(SDL_JoystickGUID guid) +static ControllerMapping_t *SDL_PrivateGetControllerMappingForGUID(SDL_JoystickGUID guid, SDL_bool create_mapping) { ControllerMapping_t *mapping; Uint16 vendor, product, crc; @@ -804,6 +807,10 @@ static ControllerMapping_t *SDL_PrivateGetControllerMappingForGUID(SDL_JoystickG } } + if (!create_mapping) { + return NULL; + } + #if SDL_JOYSTICK_XINPUT if (SDL_IsJoystickXInput(guid)) { /* This is an XInput device */ @@ -1274,7 +1281,7 @@ static ControllerMapping_t *SDL_PrivateAddMappingForGUID(SDL_JoystickGUID jGUID, } } - pControllerMapping = SDL_PrivateMatchControllerMappingForGUID(jGUID, SDL_TRUE, SDL_TRUE); + pControllerMapping = SDL_PrivateGetControllerMappingForGUID(jGUID, SDL_FALSE); if (pControllerMapping) { /* Only overwrite the mapping if the priority is the same or higher. */ if (pControllerMapping->priority <= priority) { @@ -1336,7 +1343,7 @@ static ControllerMapping_t *SDL_PrivateGetControllerMappingForNameAndGUID(const SDL_AssertJoysticksLocked(); - mapping = SDL_PrivateGetControllerMappingForGUID(guid); + mapping = SDL_PrivateGetControllerMappingForGUID(guid, SDL_TRUE); #ifdef __LINUX__ if (mapping == NULL && name) { if (SDL_strstr(name, "Xbox 360 Wireless Receiver")) { @@ -1773,7 +1780,7 @@ char *SDL_GetGamepadMappingForGUID(SDL_JoystickGUID guid) SDL_LockJoysticks(); { - ControllerMapping_t *mapping = SDL_PrivateGetControllerMappingForGUID(guid); + ControllerMapping_t *mapping = SDL_PrivateGetControllerMappingForGUID(guid, SDL_TRUE); if (mapping) { retval = CreateMappingString(mapping, guid); } else {