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Don't clobber an existing entry with a different version when adding a gamepad mapping

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(cherry picked from commit 727c7d4e2f44102bb571180929bfbb5d527f4f27)
This commit is contained in:
Sam Lantinga 2023-03-01 16:38:48 -08:00
parent 6ff3e49b6f
commit 660fc89967
1 changed files with 22 additions and 21 deletions
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23
src/joystick/SDL_gamecontroller.c
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@ -771,7 +771,7 @@ static ControllerMapping_t *SDL_PrivateMatchControllerMappingForGUID(SDL_Joystic
/* /*
* Helper function to scan the mappings database for a controller with the specified GUID * Helper function to scan the mappings database for a controller with the specified GUID
*/ */
static ControllerMapping_t *SDL_PrivateGetControllerMappingForGUID(SDL_JoystickGUID guid, SDL_bool create_mapping) static ControllerMapping_t *SDL_PrivateGetControllerMappingForGUID(SDL_JoystickGUID guid, SDL_bool adding_mapping)
{ {
ControllerMapping_t *mapping; ControllerMapping_t *mapping;
Uint16 vendor, product, crc; Uint16 vendor, product, crc;
@ -791,6 +791,13 @@ static ControllerMapping_t *SDL_PrivateGetControllerMappingForGUID(SDL_JoystickG
return mapping; return mapping;
} }
if (adding_mapping) {
/* We didn't find an existing mapping */
return NULL;
}
/* Try harder to get the best match, or create a mapping */
if (vendor && product) { if (vendor && product) {
/* Try again, ignoring the version */ /* Try again, ignoring the version */
if (crc) { if (crc) {
@ -806,17 +813,12 @@ static ControllerMapping_t *SDL_PrivateGetControllerMappingForGUID(SDL_JoystickG
} }
} }
if (!create_mapping) {
return NULL;
}
#if SDL_JOYSTICK_XINPUT #if SDL_JOYSTICK_XINPUT
if (SDL_IsJoystickXInput(guid)) { if (SDL_IsJoystickXInput(guid)) {
/* This is an XInput device */ /* This is an XInput device */
return s_pXInputMapping; return s_pXInputMapping;
} }
#endif #endif
if (mapping == NULL) {
if (SDL_IsJoystickHIDAPI(guid)) { if (SDL_IsJoystickHIDAPI(guid)) {
mapping = SDL_CreateMappingForHIDAPIController(guid); mapping = SDL_CreateMappingForHIDAPIController(guid);
} else if (SDL_IsJoystickRAWINPUT(guid)) { } else if (SDL_IsJoystickRAWINPUT(guid)) {
@ -828,9 +830,8 @@ static ControllerMapping_t *SDL_PrivateGetControllerMappingForGUID(SDL_JoystickG
#ifdef __ANDROID__ #ifdef __ANDROID__
} else { } else {
mapping = SDL_CreateMappingForAndroidController(guid); mapping = SDL_CreateMappingForAndroidController(guid);
}
#endif #endif
}
}
return mapping; return mapping;
} }
@ -1278,7 +1279,7 @@ static ControllerMapping_t *SDL_PrivateAddMappingForGUID(SDL_JoystickGUID jGUID,
} }
} }
pControllerMapping = SDL_PrivateGetControllerMappingForGUID(jGUID, SDL_FALSE); pControllerMapping = SDL_PrivateGetControllerMappingForGUID(jGUID, SDL_TRUE);
if (pControllerMapping) { if (pControllerMapping) {
/* Only overwrite the mapping if the priority is the same or higher. */ /* Only overwrite the mapping if the priority is the same or higher. */
if (pControllerMapping->priority <= priority) { if (pControllerMapping->priority <= priority) {
@ -1340,7 +1341,7 @@ static ControllerMapping_t *SDL_PrivateGetControllerMappingForNameAndGUID(const
SDL_AssertJoysticksLocked(); SDL_AssertJoysticksLocked();
mapping = SDL_PrivateGetControllerMappingForGUID(guid, SDL_TRUE); mapping = SDL_PrivateGetControllerMappingForGUID(guid, SDL_FALSE);
#ifdef __LINUX__ #ifdef __LINUX__
if (mapping == NULL && name) { if (mapping == NULL && name) {
if (SDL_strstr(name, "Xbox 360 Wireless Receiver")) { if (SDL_strstr(name, "Xbox 360 Wireless Receiver")) {
@ -1777,7 +1778,7 @@ char *SDL_GameControllerMappingForGUID(SDL_JoystickGUID guid)
SDL_LockJoysticks(); SDL_LockJoysticks();
{ {
ControllerMapping_t *mapping = SDL_PrivateGetControllerMappingForGUID(guid, SDL_TRUE); ControllerMapping_t *mapping = SDL_PrivateGetControllerMappingForGUID(guid, SDL_FALSE);
if (mapping) { if (mapping) {
retval = CreateMappingString(mapping, guid); retval = CreateMappingString(mapping, guid);
} else { } else {