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Avoid duplicate joystick axis events

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Sam Lantinga 2017-09-22 08:56:09 -07:00
parent d58b502fad
commit 0273dd1d92
1 changed files with 3 additions and 0 deletions
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3
src/joystick/SDL_joystick.c
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@ -672,6 +672,9 @@ SDL_PrivateJoystickAxis(SDL_Joystick * joystick, Uint8 axis, Sint16 value)
joystick->axes[axis].zero = value; joystick->axes[axis].zero = value;
joystick->axes[axis].has_initial_value = SDL_TRUE; joystick->axes[axis].has_initial_value = SDL_TRUE;
} }
if (value == joystick->axes[axis].value) {
return 0;
}
if (!joystick->axes[axis].sent_initial_value) { if (!joystick->axes[axis].sent_initial_value) {
/* Make sure we don't send motion until there's real activity on this axis */ /* Make sure we don't send motion until there's real activity on this axis */
const int MAX_ALLOWED_JITTER = SDL_JOYSTICK_AXIS_MAX / 80; /* ShanWan PS3 controller needed 96 */ const int MAX_ALLOWED_JITTER = SDL_JOYSTICK_AXIS_MAX / 80; /* ShanWan PS3 controller needed 96 */