void SDL_PrivateJoystickRemoved(SDL_JoystickID device_instance)
{
#if !SDL_EVENTS_DISABLED
SDL_Event event;
event.type = SDL_JOYDEVICEREMOVED;
if (SDL_GetEventState(event.type) == SDL_ENABLE) {
event.jdevice.which = device_instance;
SDL_PushEvent(&event);
}
UpdateEventsForDeviceRemoval();
#endif /* !SDL_EVENTS_DISABLED */
}
/*
* Event filter to fire controller events from joystick ones
*/
static int SDL_GameControllerEventWatcher(void *userdata, SDL_Event * event)
{
switch(event->type) {
case SDL_JOYAXISMOTION:
{
SDL_GameController *controllerlist;
if (event->jaxis.axis >= k_nMaxReverseEntries)
{
SDL_SetError("SDL_GameControllerEventWatcher: Axis index %d too large, ignoring motion", (int)event->jaxis.axis);
break;
}
controllerlist = SDL_gamecontrollers;
while (controllerlist) {
if (controllerlist->joystick->instance_id == event->jaxis.which) {
if (controllerlist->mapping.raxes[event->jaxis.axis] >= 0) /* simple axis to axis, send it through */ {
SDL_GameControllerAxis axis = controllerlist->mapping.raxes[event->jaxis.axis];
Sint16 value = event->jaxis.value;
switch (axis) {
case SDL_CONTROLLER_AXIS_TRIGGERLEFT:
case SDL_CONTROLLER_AXIS_TRIGGERRIGHT:
value = value / 2 + 16384;
break;
default:
break;
}
SDL_PrivateGameControllerAxis(controllerlist, axis, value);
} else if (controllerlist->mapping.raxesasbutton[event->jaxis.axis] >= 0) { /* simulate an axis as a button */
SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.raxesasbutton[event->jaxis.axis], ABS(event->jaxis.value) > 32768/2 ? SDL_PRESSED : SDL_RELEASED);
}
break;
}
controllerlist = controllerlist->next;
}
}
break;
case SDL_JOYBUTTONDOWN:
case SDL_JOYBUTTONUP:
{
SDL_GameController *controllerlist;
if (event->jbutton.button >= k_nMaxReverseEntries)
{
SDL_SetError("SDL_GameControllerEventWatcher: Button index %d too large, ignoring update", (int)event->jbutton.button);
break;
}
controllerlist = SDL_gamecontrollers;
while (controllerlist) {
if (controllerlist->joystick->instance_id == event->jbutton.which) {
if (controllerlist->mapping.rbuttons[event->jbutton.button] >= 0) { /* simple button as button */
SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rbuttons[event->jbutton.button], event->jbutton.state);
} else if (controllerlist->mapping.rbuttonasaxis[event->jbutton.button] >= 0) { /* an button pretending to be an axis */
SDL_PrivateGameControllerAxis(controllerlist, controllerlist->mapping.rbuttonasaxis[event->jbutton.button], event->jbutton.state > 0 ? 32767 : 0);
}
break;
}
controllerlist = controllerlist->next;
}
}
break;
case SDL_JOYHATMOTION:
{
SDL_GameController *controllerlist;
if (event->jhat.hat >= 4) break;
controllerlist = SDL_gamecontrollers;
while (controllerlist) {
if (controllerlist->joystick->instance_id == event->jhat.which) {
Uint8 bSame = controllerlist->hatState[event->jhat.hat] & event->jhat.value;
/* Get list of removed bits (button release) */
Uint8 bChanged = controllerlist->hatState[event->jhat.hat] ^ bSame;
/* the hat idx in the high nibble */
int bHighHat = event->jhat.hat << 4;
if (bChanged & SDL_HAT_DOWN)
SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rhatasbutton[bHighHat | SDL_HAT_DOWN], SDL_RELEASED);
if (bChanged & SDL_HAT_UP)
SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rhatasbutton[bHighHat | SDL_HAT_UP], SDL_RELEASED);
if (bChanged & SDL_HAT_LEFT)
SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rhatasbutton[bHighHat | SDL_HAT_LEFT], SDL_RELEASED);
if (bChanged & SDL_HAT_RIGHT)
SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rhatasbutton[bHighHat | SDL_HAT_RIGHT], SDL_RELEASED);
/* Get list of added bits (button press) */
bChanged = event->jhat.value ^ bSame;
if (bChanged & SDL_HAT_DOWN)
SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rhatasbutton[bHighHat | SDL_HAT_DOWN], SDL_PRESSED);
if (bChanged & SDL_HAT_UP)
SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rhatasbutton[bHighHat | SDL_HAT_UP], SDL_PRESSED);
if (bChanged & SDL_HAT_LEFT)
SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rhatasbutton[bHighHat | SDL_HAT_LEFT], SDL_PRESSED);
if (bChanged & SDL_HAT_RIGHT)
SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rhatasbutton[bHighHat | SDL_HAT_RIGHT], SDL_PRESSED);
/* update our state cache */
controllerlist->hatState[event->jhat.hat] = event->jhat.value;
break;
}
controllerlist = controllerlist->next;
}
}
break;
case SDL_JOYDEVICEADDED:
{
if (SDL_IsGameController(event->jdevice.which)) {
SDL_Event deviceevent;
deviceevent.type = SDL_CONTROLLERDEVICEADDED;
deviceevent.cdevice.which = event->jdevice.which;
SDL_PushEvent(&deviceevent);
}
}
break;
case SDL_JOYDEVICEREMOVED:
{
SDL_GameController *controllerlist = SDL_gamecontrollers;
while (controllerlist) {
if (controllerlist->joystick->instance_id == event->jdevice.which) {
SDL_Event deviceevent;
deviceevent.type = SDL_CONTROLLERDEVICEREMOVED;
deviceevent.cdevice.which = event->jdevice.which;
SDL_PushEvent(&deviceevent);
UpdateEventsForDeviceRemoval();
break;
}
controllerlist = controllerlist->next;
}
}
break;
default:
break;
}
return 1;
}