int
SDL_SYS_JoystickInit(void)
{
SDL_SYS_JoystickDetect();
if (SDL_GetHintBoolean(SDL_HINT_ACCELEROMETER_AS_JOYSTICK, SDL_TRUE)) {
/* Default behavior, accelerometer as joystick */
Android_AddJoystick(ANDROID_ACCELEROMETER_DEVICE_ID, ANDROID_ACCELEROMETER_NAME, ANDROID_ACCELEROMETER_NAME, SDL_TRUE, 0, 3, 0, 0);
}
return (numjoysticks);
}
void
SDL_JoystickUpdate(void)
{
SDL_Joystick *joystick;
joystick = SDL_joysticks;
while (joystick) {
SDL_Joystick *joysticknext;
/* save off the next pointer, the Update call may cause a joystick removed event
* and cause our joystick pointer to be freed
*/
joysticknext = joystick->next;
SDL_updating_joystick = joystick;
SDL_SYS_JoystickUpdate(joystick);
if (joystick->force_recentering) {
int i;
/* Tell the app that everything is centered/unpressed... */
for (i = 0; i < joystick->naxes; i++) {
SDL_PrivateJoystickAxis(joystick, i, joystick->axes_zero[i]);
}
for (i = 0; i < joystick->nbuttons; i++) {
SDL_PrivateJoystickButton(joystick, i, 0);
}
for (i = 0; i < joystick->nhats; i++) {
SDL_PrivateJoystickHat(joystick, i, SDL_HAT_CENTERED);
}
joystick->force_recentering = SDL_FALSE;
}
SDL_updating_joystick = NULL;
/* If the joystick was closed while updating, free it here */
if (joystick->ref_count <= 0) {
SDL_JoystickClose(joystick);
}
joystick = joysticknext;
}
/* this needs to happen AFTER walking the joystick list above, so that any
dangling hardware data from removed devices can be free'd
*/
SDL_SYS_JoystickDetect();
}
int
SDL_SYS_JoystickInit(void)
{
const char *hint;
SDL_SYS_JoystickDetect();
hint = SDL_GetHint(SDL_HINT_ACCELEROMETER_AS_JOYSTICK);
if (!hint || SDL_atoi(hint)) {
/* Default behavior, accelerometer as joystick */
Android_AddJoystick(ANDROID_ACCELEROMETER_DEVICE_ID, ANDROID_ACCELEROMETER_NAME, SDL_TRUE, 0, 3, 0, 0);
}
return (numjoysticks);
}
static SDL_joylist_item *
JoystickByDeviceId(int device_id)
{
SDL_joylist_item *item = SDL_joylist;
while (item != NULL) {
if (item->device_id == device_id) {
return item;
}
item = item->next;
}
/* Joystick not found, try adding it */
SDL_SYS_JoystickDetect();
while (item != NULL) {
if (item->device_id == device_id) {
return item;
}
item = item->next;
}
return NULL;
}
void
SDL_JoystickUpdate(void)
{
SDL_Joystick *joystick;
SDL_LockJoystickList();
if (SDL_updating_joystick) {
/* The joysticks are already being updated */
SDL_UnlockJoystickList();
return;
}
SDL_updating_joystick = SDL_TRUE;
/* Make sure the list is unlocked while dispatching events to prevent application deadlocks */
SDL_UnlockJoystickList();
for (joystick = SDL_joysticks; joystick; joystick = joystick->next) {
SDL_SYS_JoystickUpdate(joystick);
if (joystick->force_recentering) {
int i;
/* Tell the app that everything is centered/unpressed... */
for (i = 0; i < joystick->naxes; i++) {
if (joystick->axes[i].has_initial_value) {
SDL_PrivateJoystickAxis(joystick, i, joystick->axes[i].zero);
}
}
for (i = 0; i < joystick->nbuttons; i++) {
SDL_PrivateJoystickButton(joystick, i, 0);
}
for (i = 0; i < joystick->nhats; i++) {
SDL_PrivateJoystickHat(joystick, i, SDL_HAT_CENTERED);
}
joystick->force_recentering = SDL_FALSE;
}
}
SDL_LockJoystickList();
SDL_updating_joystick = SDL_FALSE;
/* If any joysticks were closed while updating, free them here */
for (joystick = SDL_joysticks; joystick; joystick = joystick->next) {
if (joystick->ref_count <= 0) {
SDL_JoystickClose(joystick);
}
}
/* this needs to happen AFTER walking the joystick list above, so that any
dangling hardware data from removed devices can be free'd
*/
SDL_SYS_JoystickDetect();
SDL_UnlockJoystickList();
}