diff --git a/test/controllermap.c b/test/controllermap.c index 0f7de702b..34fc13319 100644 --- a/test/controllermap.c +++ b/test/controllermap.c @@ -143,6 +143,7 @@ static SDL_GameControllerExtendedBind s_arrBindings[BINDING_COUNT]; typedef struct { SDL_bool m_bMoving; + int m_nLastValue; int m_nStartingValue; int m_nFarthestValue; } AxisState; @@ -461,14 +462,20 @@ WatchJoystick(SDL_Joystick * joystick) break; case SDL_JOYAXISMOTION: if (event.jaxis.which == nJoystickID) { + const int MAX_ALLOWED_JITTER = SDL_JOYSTICK_AXIS_MAX / 80; /* ShanWan PS3 controller needed 96 */ AxisState *pAxisState = &s_arrAxisState[event.jaxis.axis]; int nValue = event.jaxis.value; int nCurrentDistance, nFarthestDistance; if (!pAxisState->m_bMoving) { Sint16 nInitialValue; pAxisState->m_bMoving = SDL_JoystickGetAxisInitialState(joystick, event.jaxis.axis, &nInitialValue); + pAxisState->m_nLastValue = nInitialValue; pAxisState->m_nStartingValue = nInitialValue; pAxisState->m_nFarthestValue = nInitialValue; + } else if (SDL_abs(nValue - pAxisState->m_nLastValue) <= MAX_ALLOWED_JITTER) { + break; + } else { + pAxisState->m_nLastValue = nValue; } nCurrentDistance = SDL_abs(nValue - pAxisState->m_nStartingValue); nFarthestDistance = SDL_abs(pAxisState->m_nFarthestValue - pAxisState->m_nStartingValue);