/* ljoy_process_new_data: [fdwatch thread]
*
* Process new data arriving in the joystick's fd.
*/
static void ljoy_process_new_data(void *data)
{
ALLEGRO_JOYSTICK_LINUX *joy = data;
ALLEGRO_EVENT_SOURCE *es = al_get_joystick_event_source();
if (!es) {
// Joystick driver not fully initialized
return;
}
_al_event_source_lock(es);
{
struct input_event input_events[32];
int bytes, nr, i;
while ((bytes = read(joy->fd, &input_events, sizeof input_events)) > 0) {
nr = bytes / sizeof(struct input_event);
for (i = 0; i < nr; i++) {
int type = input_events[i].type;
int code = input_events[i].code;
int value = input_events[i].value;
if (type == EV_KEY) {
int number = map_button_number(joy, code);
if (number >= 0) {
if (value)
joy->joystate.button[number] = 32767;
else
joy->joystate.button[number] = 0;
ljoy_generate_button_event(joy, number,
(value
? ALLEGRO_EVENT_JOYSTICK_BUTTON_DOWN
: ALLEGRO_EVENT_JOYSTICK_BUTTON_UP));
}
}
else if (type == EV_ABS) {
int number = code;
if (number < TOTAL_JOYSTICK_AXES) {
const AXIS_MAPPING *map = &joy->axis_mapping[number];
int stick = map->stick;
int axis = map->axis;
float pos = norm_pos(map, value);
joy->joystate.stick[stick].axis[axis] = pos;
ljoy_generate_axis_event(joy, stick, axis, pos);
}
}
}
}
}
_al_event_source_unlock(es);
}
/* ljoy_process_new_data: [fdwatch thread]
*
* Process new data arriving in the joystick's fd.
*/
static void ljoy_process_new_data(void *data)
{
ALLEGRO_JOYSTICK_LINUX *joy = data;
_al_event_source_lock(&joy->parent.es);
{
struct js_event js_events[32];
int bytes, nr, i;
while ((bytes = read(joy->fd, &js_events, sizeof js_events)) > 0) {
nr = bytes / sizeof(struct js_event);
for (i = 0; i < nr; i++) {
int type = js_events[i].type;
int number = js_events[i].number;
int value = js_events[i].value;
if (type & JS_EVENT_BUTTON) {
if (number < _AL_MAX_JOYSTICK_BUTTONS) {
if (value)
joy->joystate.button[number] = 32767;
else
joy->joystate.button[number] = 0;
ljoy_generate_button_event(joy, number,
(value
? ALLEGRO_EVENT_JOYSTICK_BUTTON_DOWN
: ALLEGRO_EVENT_JOYSTICK_BUTTON_UP));
}
}
else if (type & JS_EVENT_AXIS) {
if (number < TOTAL_JOYSTICK_AXES) {
int stick = joy->axis_mapping[number].stick;
int axis = joy->axis_mapping[number].axis;
float pos = value / 32767.0;
joy->joystate.stick[stick].axis[axis] = pos;
ljoy_generate_axis_event(joy, stick, axis, pos);
}
}
}
}
}
_al_event_source_unlock(&joy->parent.es);
}