2 * Copyright © 2013 Jonas Ådahl
4 * Permission to use, copy, modify, distribute, and sell this software and
5 * its documentation for any purpose is hereby granted without fee, provided
6 * that the above copyright notice appear in all copies and that both that
7 * copyright notice and this permission notice appear in supporting
8 * documentation, and that the name of the copyright holders not be used in
9 * advertising or publicity pertaining to distribution of the software
10 * without specific, written prior permission. The copyright holders make
11 * no representations about the suitability of this software for any
12 * purpose. It is provided "as is" without express or implied warranty.
14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
15 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
16 * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
17 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
18 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
19 * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
20 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
29 #include <sys/epoll.h>
34 #include "libinput-private.h"
38 struct libinput_source {
39 libinput_source_dispatch_t dispatch;
45 struct libinput_event {
46 enum libinput_event_type type;
47 struct libinput_device *device;
50 struct libinput_event_device_notify {
51 struct libinput_event base;
54 struct libinput_event_keyboard {
55 struct libinput_event base;
58 uint32_t seat_key_count;
59 enum libinput_keyboard_key_state state;
62 struct libinput_event_pointer {
63 struct libinput_event base;
68 uint32_t seat_button_count;
69 enum libinput_button_state state;
70 enum libinput_pointer_axis axis;
74 struct libinput_event_touch {
75 struct libinput_event base;
84 libinput_default_log_func(enum libinput_log_priority priority,
86 const char *format, va_list args)
91 case LIBINPUT_LOG_PRIORITY_DEBUG: prefix = "debug"; break;
92 case LIBINPUT_LOG_PRIORITY_INFO: prefix = "info"; break;
93 case LIBINPUT_LOG_PRIORITY_ERROR: prefix = "error"; break;
94 default: prefix="<invalid priority>"; break;
97 fprintf(stderr, "libinput %s: ", prefix);
98 vfprintf(stderr, format, args);
102 enum libinput_log_priority priority;
103 libinput_log_handler handler;
107 static struct log_data log_data = {
108 .priority = LIBINPUT_LOG_PRIORITY_ERROR,
109 .handler = libinput_default_log_func,
114 log_msg_va(enum libinput_log_priority priority,
118 if (log_data.handler && log_data.priority <= priority)
119 log_data.handler(priority, log_data.user_data, format, args);
123 log_msg(enum libinput_log_priority priority, const char *format, ...)
127 va_start(args, format);
128 log_msg_va(priority, format, args);
133 libinput_log_set_priority(enum libinput_log_priority priority)
135 log_data.priority = priority;
138 LIBINPUT_EXPORT enum libinput_log_priority
139 libinput_log_get_priority(void)
141 return log_data.priority;
145 libinput_log_set_handler(libinput_log_handler log_handler,
148 log_data.handler = log_handler;
149 log_data.user_data = user_data;
153 libinput_post_event(struct libinput *libinput,
154 struct libinput_event *event);
156 LIBINPUT_EXPORT enum libinput_event_type
157 libinput_event_get_type(struct libinput_event *event)
162 LIBINPUT_EXPORT struct libinput *
163 libinput_event_get_context(struct libinput_event *event)
165 return event->device->seat->libinput;
168 LIBINPUT_EXPORT struct libinput_device *
169 libinput_event_get_device(struct libinput_event *event)
171 return event->device;
174 LIBINPUT_EXPORT struct libinput_event_pointer *
175 libinput_event_get_pointer_event(struct libinput_event *event)
177 switch (event->type) {
178 case LIBINPUT_EVENT_NONE:
179 abort(); /* not used as actual event type */
180 case LIBINPUT_EVENT_DEVICE_ADDED:
181 case LIBINPUT_EVENT_DEVICE_REMOVED:
182 case LIBINPUT_EVENT_KEYBOARD_KEY:
184 case LIBINPUT_EVENT_POINTER_MOTION:
185 case LIBINPUT_EVENT_POINTER_MOTION_ABSOLUTE:
186 case LIBINPUT_EVENT_POINTER_BUTTON:
187 case LIBINPUT_EVENT_POINTER_AXIS:
188 return (struct libinput_event_pointer *) event;
189 case LIBINPUT_EVENT_TOUCH_DOWN:
190 case LIBINPUT_EVENT_TOUCH_UP:
191 case LIBINPUT_EVENT_TOUCH_MOTION:
192 case LIBINPUT_EVENT_TOUCH_CANCEL:
193 case LIBINPUT_EVENT_TOUCH_FRAME:
200 LIBINPUT_EXPORT struct libinput_event_keyboard *
201 libinput_event_get_keyboard_event(struct libinput_event *event)
203 switch (event->type) {
204 case LIBINPUT_EVENT_NONE:
205 abort(); /* not used as actual event type */
206 case LIBINPUT_EVENT_DEVICE_ADDED:
207 case LIBINPUT_EVENT_DEVICE_REMOVED:
209 case LIBINPUT_EVENT_KEYBOARD_KEY:
210 return (struct libinput_event_keyboard *) event;
211 case LIBINPUT_EVENT_POINTER_MOTION:
212 case LIBINPUT_EVENT_POINTER_MOTION_ABSOLUTE:
213 case LIBINPUT_EVENT_POINTER_BUTTON:
214 case LIBINPUT_EVENT_POINTER_AXIS:
215 case LIBINPUT_EVENT_TOUCH_DOWN:
216 case LIBINPUT_EVENT_TOUCH_UP:
217 case LIBINPUT_EVENT_TOUCH_MOTION:
218 case LIBINPUT_EVENT_TOUCH_CANCEL:
219 case LIBINPUT_EVENT_TOUCH_FRAME:
226 LIBINPUT_EXPORT struct libinput_event_touch *
227 libinput_event_get_touch_event(struct libinput_event *event)
229 switch (event->type) {
230 case LIBINPUT_EVENT_NONE:
231 abort(); /* not used as actual event type */
232 case LIBINPUT_EVENT_DEVICE_ADDED:
233 case LIBINPUT_EVENT_DEVICE_REMOVED:
234 case LIBINPUT_EVENT_KEYBOARD_KEY:
235 case LIBINPUT_EVENT_POINTER_MOTION:
236 case LIBINPUT_EVENT_POINTER_MOTION_ABSOLUTE:
237 case LIBINPUT_EVENT_POINTER_BUTTON:
238 case LIBINPUT_EVENT_POINTER_AXIS:
240 case LIBINPUT_EVENT_TOUCH_DOWN:
241 case LIBINPUT_EVENT_TOUCH_UP:
242 case LIBINPUT_EVENT_TOUCH_MOTION:
243 case LIBINPUT_EVENT_TOUCH_CANCEL:
244 case LIBINPUT_EVENT_TOUCH_FRAME:
245 return (struct libinput_event_touch *) event;
251 LIBINPUT_EXPORT struct libinput_event_device_notify *
252 libinput_event_get_device_notify_event(struct libinput_event *event)
254 switch (event->type) {
255 case LIBINPUT_EVENT_NONE:
256 abort(); /* not used as actual event type */
257 case LIBINPUT_EVENT_DEVICE_ADDED:
258 case LIBINPUT_EVENT_DEVICE_REMOVED:
259 return (struct libinput_event_device_notify *) event;
260 case LIBINPUT_EVENT_KEYBOARD_KEY:
261 case LIBINPUT_EVENT_POINTER_MOTION:
262 case LIBINPUT_EVENT_POINTER_MOTION_ABSOLUTE:
263 case LIBINPUT_EVENT_POINTER_BUTTON:
264 case LIBINPUT_EVENT_POINTER_AXIS:
265 case LIBINPUT_EVENT_TOUCH_DOWN:
266 case LIBINPUT_EVENT_TOUCH_UP:
267 case LIBINPUT_EVENT_TOUCH_MOTION:
268 case LIBINPUT_EVENT_TOUCH_CANCEL:
269 case LIBINPUT_EVENT_TOUCH_FRAME:
276 LIBINPUT_EXPORT uint32_t
277 libinput_event_keyboard_get_time(struct libinput_event_keyboard *event)
282 LIBINPUT_EXPORT uint32_t
283 libinput_event_keyboard_get_key(struct libinput_event_keyboard *event)
288 LIBINPUT_EXPORT enum libinput_keyboard_key_state
289 libinput_event_keyboard_get_key_state(struct libinput_event_keyboard *event)
294 LIBINPUT_EXPORT uint32_t
295 libinput_event_keyboard_get_seat_key_count(
296 struct libinput_event_keyboard *event)
298 return event->seat_key_count;
301 LIBINPUT_EXPORT uint32_t
302 libinput_event_pointer_get_time(struct libinput_event_pointer *event)
307 LIBINPUT_EXPORT double
308 libinput_event_pointer_get_dx(struct libinput_event_pointer *event)
313 LIBINPUT_EXPORT double
314 libinput_event_pointer_get_dy(struct libinput_event_pointer *event)
319 LIBINPUT_EXPORT double
320 libinput_event_pointer_get_absolute_x(struct libinput_event_pointer *event)
322 struct evdev_device *device =
323 (struct evdev_device *) event->base.device;
325 return evdev_convert_to_mm(device->abs.absinfo_x, event->x);
328 LIBINPUT_EXPORT double
329 libinput_event_pointer_get_absolute_y(struct libinput_event_pointer *event)
331 struct evdev_device *device =
332 (struct evdev_device *) event->base.device;
334 return evdev_convert_to_mm(device->abs.absinfo_y, event->y);
337 LIBINPUT_EXPORT double
338 libinput_event_pointer_get_absolute_x_transformed(
339 struct libinput_event_pointer *event,
342 struct evdev_device *device =
343 (struct evdev_device *) event->base.device;
345 return evdev_device_transform_x(device, event->x, width);
348 LIBINPUT_EXPORT double
349 libinput_event_pointer_get_absolute_y_transformed(
350 struct libinput_event_pointer *event,
353 struct evdev_device *device =
354 (struct evdev_device *) event->base.device;
356 return evdev_device_transform_y(device, event->y, height);
359 LIBINPUT_EXPORT uint32_t
360 libinput_event_pointer_get_button(struct libinput_event_pointer *event)
362 return event->button;
365 LIBINPUT_EXPORT enum libinput_button_state
366 libinput_event_pointer_get_button_state(struct libinput_event_pointer *event)
371 LIBINPUT_EXPORT uint32_t
372 libinput_event_pointer_get_seat_button_count(
373 struct libinput_event_pointer *event)
375 return event->seat_button_count;
378 LIBINPUT_EXPORT enum libinput_pointer_axis
379 libinput_event_pointer_get_axis(struct libinput_event_pointer *event)
384 LIBINPUT_EXPORT double
385 libinput_event_pointer_get_axis_value(struct libinput_event_pointer *event)
390 LIBINPUT_EXPORT uint32_t
391 libinput_event_touch_get_time(struct libinput_event_touch *event)
396 LIBINPUT_EXPORT int32_t
397 libinput_event_touch_get_slot(struct libinput_event_touch *event)
402 LIBINPUT_EXPORT int32_t
403 libinput_event_touch_get_seat_slot(struct libinput_event_touch *event)
405 return event->seat_slot;
408 LIBINPUT_EXPORT double
409 libinput_event_touch_get_x(struct libinput_event_touch *event)
411 struct evdev_device *device =
412 (struct evdev_device *) event->base.device;
414 return evdev_convert_to_mm(device->abs.absinfo_x, event->x);
417 LIBINPUT_EXPORT double
418 libinput_event_touch_get_x_transformed(struct libinput_event_touch *event,
421 struct evdev_device *device =
422 (struct evdev_device *) event->base.device;
424 return evdev_device_transform_x(device, event->x, width);
427 LIBINPUT_EXPORT double
428 libinput_event_touch_get_y_transformed(struct libinput_event_touch *event,
431 struct evdev_device *device =
432 (struct evdev_device *) event->base.device;
434 return evdev_device_transform_y(device, event->y, height);
437 LIBINPUT_EXPORT double
438 libinput_event_touch_get_y(struct libinput_event_touch *event)
440 struct evdev_device *device =
441 (struct evdev_device *) event->base.device;
443 return evdev_convert_to_mm(device->abs.absinfo_y, event->y);
446 struct libinput_source *
447 libinput_add_fd(struct libinput *libinput,
449 libinput_source_dispatch_t dispatch,
452 struct libinput_source *source;
453 struct epoll_event ep;
455 source = malloc(sizeof *source);
459 source->dispatch = dispatch;
460 source->user_data = user_data;
463 memset(&ep, 0, sizeof ep);
465 ep.data.ptr = source;
467 if (epoll_ctl(libinput->epoll_fd, EPOLL_CTL_ADD, fd, &ep) < 0) {
477 libinput_remove_source(struct libinput *libinput,
478 struct libinput_source *source)
480 epoll_ctl(libinput->epoll_fd, EPOLL_CTL_DEL, source->fd, NULL);
482 list_insert(&libinput->source_destroy_list, &source->link);
486 libinput_init(struct libinput *libinput,
487 const struct libinput_interface *interface,
488 const struct libinput_interface_backend *interface_backend,
491 libinput->epoll_fd = epoll_create1(EPOLL_CLOEXEC);;
492 if (libinput->epoll_fd < 0)
495 libinput->events_len = 4;
496 libinput->events = zalloc(libinput->events_len * sizeof(*libinput->events));
497 if (!libinput->events) {
498 close(libinput->epoll_fd);
502 libinput->interface = interface;
503 libinput->interface_backend = interface_backend;
504 libinput->user_data = user_data;
505 list_init(&libinput->source_destroy_list);
506 list_init(&libinput->seat_list);
508 if (libinput_timer_subsys_init(libinput) != 0) {
509 free(libinput->events);
510 close(libinput->epoll_fd);
518 libinput_device_destroy(struct libinput_device *device);
521 libinput_seat_destroy(struct libinput_seat *seat);
524 libinput_drop_destroyed_sources(struct libinput *libinput)
526 struct libinput_source *source, *next;
528 list_for_each_safe(source, next, &libinput->source_destroy_list, link)
530 list_init(&libinput->source_destroy_list);
534 libinput_destroy(struct libinput *libinput)
536 struct libinput_event *event;
537 struct libinput_device *device, *next_device;
538 struct libinput_seat *seat, *next_seat;
540 if (libinput == NULL)
543 libinput_suspend(libinput);
545 libinput->interface_backend->destroy(libinput);
547 while ((event = libinput_get_event(libinput)))
548 libinput_event_destroy(event);
550 free(libinput->events);
552 list_for_each_safe(seat, next_seat, &libinput->seat_list, link) {
553 list_for_each_safe(device, next_device,
556 libinput_device_destroy(device);
558 libinput_seat_destroy(seat);
561 libinput_timer_subsys_destroy(libinput);
562 libinput_drop_destroyed_sources(libinput);
563 close(libinput->epoll_fd);
568 libinput_event_destroy(struct libinput_event *event)
574 libinput_device_unref(event->device);
580 open_restricted(struct libinput *libinput,
581 const char *path, int flags)
583 return libinput->interface->open_restricted(path,
585 libinput->user_data);
589 close_restricted(struct libinput *libinput, int fd)
591 return libinput->interface->close_restricted(fd, libinput->user_data);
595 libinput_seat_init(struct libinput_seat *seat,
596 struct libinput *libinput,
597 const char *physical_name,
598 const char *logical_name,
599 libinput_seat_destroy_func destroy)
602 seat->libinput = libinput;
603 seat->physical_name = strdup(physical_name);
604 seat->logical_name = strdup(logical_name);
605 seat->destroy = destroy;
606 list_init(&seat->devices_list);
607 list_insert(&libinput->seat_list, &seat->link);
611 libinput_seat_ref(struct libinput_seat *seat)
617 libinput_seat_destroy(struct libinput_seat *seat)
619 list_remove(&seat->link);
620 free(seat->logical_name);
621 free(seat->physical_name);
626 libinput_seat_unref(struct libinput_seat *seat)
628 assert(seat->refcount > 0);
630 if (seat->refcount == 0)
631 libinput_seat_destroy(seat);
635 libinput_seat_set_user_data(struct libinput_seat *seat, void *user_data)
637 seat->user_data = user_data;
640 LIBINPUT_EXPORT void *
641 libinput_seat_get_user_data(struct libinput_seat *seat)
643 return seat->user_data;
646 LIBINPUT_EXPORT const char *
647 libinput_seat_get_physical_name(struct libinput_seat *seat)
649 return seat->physical_name;
652 LIBINPUT_EXPORT const char *
653 libinput_seat_get_logical_name(struct libinput_seat *seat)
655 return seat->logical_name;
659 libinput_device_init(struct libinput_device *device,
660 struct libinput_seat *seat)
663 device->refcount = 1;
667 libinput_device_ref(struct libinput_device *device)
673 libinput_device_destroy(struct libinput_device *device)
675 evdev_device_destroy((struct evdev_device *) device);
679 libinput_device_unref(struct libinput_device *device)
681 assert(device->refcount > 0);
683 if (device->refcount == 0)
684 libinput_device_destroy(device);
688 libinput_get_fd(struct libinput *libinput)
690 return libinput->epoll_fd;
694 libinput_dispatch(struct libinput *libinput)
696 struct libinput_source *source;
697 struct epoll_event ep[32];
700 count = epoll_wait(libinput->epoll_fd, ep, ARRAY_LENGTH(ep), 0);
704 for (i = 0; i < count; ++i) {
705 source = ep[i].data.ptr;
706 if (source->fd == -1)
709 source->dispatch(source->user_data);
712 libinput_drop_destroyed_sources(libinput);
718 update_seat_key_count(struct libinput_seat *seat,
720 enum libinput_keyboard_key_state state)
722 assert(key >= 0 && key <= KEY_MAX);
725 case LIBINPUT_KEYBOARD_KEY_STATE_PRESSED:
726 return ++seat->button_count[key];
727 case LIBINPUT_KEYBOARD_KEY_STATE_RELEASED:
728 /* We might not have received the first PRESSED event. */
729 if (seat->button_count[key] == 0)
732 return --seat->button_count[key];
739 update_seat_button_count(struct libinput_seat *seat,
741 enum libinput_button_state state)
743 assert(button >= 0 && button <= KEY_MAX);
746 case LIBINPUT_BUTTON_STATE_PRESSED:
747 return ++seat->button_count[button];
748 case LIBINPUT_BUTTON_STATE_RELEASED:
749 /* We might not have received the first PRESSED event. */
750 if (seat->button_count[button] == 0)
753 return --seat->button_count[button];
760 init_event_base(struct libinput_event *event,
761 struct libinput_device *device,
762 enum libinput_event_type type)
765 event->device = device;
769 post_base_event(struct libinput_device *device,
770 enum libinput_event_type type,
771 struct libinput_event *event)
773 struct libinput *libinput = device->seat->libinput;
774 init_event_base(event, device, type);
775 libinput_post_event(libinput, event);
779 post_device_event(struct libinput_device *device,
780 enum libinput_event_type type,
781 struct libinput_event *event)
783 init_event_base(event, device, type);
784 libinput_post_event(device->seat->libinput, event);
788 notify_added_device(struct libinput_device *device)
790 struct libinput_event_device_notify *added_device_event;
792 added_device_event = zalloc(sizeof *added_device_event);
793 if (!added_device_event)
796 post_base_event(device,
797 LIBINPUT_EVENT_DEVICE_ADDED,
798 &added_device_event->base);
802 notify_removed_device(struct libinput_device *device)
804 struct libinput_event_device_notify *removed_device_event;
806 removed_device_event = zalloc(sizeof *removed_device_event);
807 if (!removed_device_event)
810 post_base_event(device,
811 LIBINPUT_EVENT_DEVICE_REMOVED,
812 &removed_device_event->base);
816 keyboard_notify_key(struct libinput_device *device,
819 enum libinput_keyboard_key_state state)
821 struct libinput_event_keyboard *key_event;
822 uint32_t seat_key_count;
824 key_event = zalloc(sizeof *key_event);
828 seat_key_count = update_seat_key_count(device->seat, key, state);
830 *key_event = (struct libinput_event_keyboard) {
834 .seat_key_count = seat_key_count,
837 post_device_event(device,
838 LIBINPUT_EVENT_KEYBOARD_KEY,
843 pointer_notify_motion(struct libinput_device *device,
848 struct libinput_event_pointer *motion_event;
850 motion_event = zalloc(sizeof *motion_event);
854 *motion_event = (struct libinput_event_pointer) {
860 post_device_event(device,
861 LIBINPUT_EVENT_POINTER_MOTION,
862 &motion_event->base);
866 pointer_notify_motion_absolute(struct libinput_device *device,
871 struct libinput_event_pointer *motion_absolute_event;
873 motion_absolute_event = zalloc(sizeof *motion_absolute_event);
874 if (!motion_absolute_event)
877 *motion_absolute_event = (struct libinput_event_pointer) {
883 post_device_event(device,
884 LIBINPUT_EVENT_POINTER_MOTION_ABSOLUTE,
885 &motion_absolute_event->base);
889 pointer_notify_button(struct libinput_device *device,
892 enum libinput_button_state state)
894 struct libinput_event_pointer *button_event;
895 int32_t seat_button_count;
897 button_event = zalloc(sizeof *button_event);
901 seat_button_count = update_seat_button_count(device->seat,
905 *button_event = (struct libinput_event_pointer) {
909 .seat_button_count = seat_button_count,
912 post_device_event(device,
913 LIBINPUT_EVENT_POINTER_BUTTON,
914 &button_event->base);
918 pointer_notify_axis(struct libinput_device *device,
920 enum libinput_pointer_axis axis,
923 struct libinput_event_pointer *axis_event;
925 axis_event = zalloc(sizeof *axis_event);
929 *axis_event = (struct libinput_event_pointer) {
935 post_device_event(device,
936 LIBINPUT_EVENT_POINTER_AXIS,
941 touch_notify_touch_down(struct libinput_device *device,
948 struct libinput_event_touch *touch_event;
950 touch_event = zalloc(sizeof *touch_event);
954 *touch_event = (struct libinput_event_touch) {
957 .seat_slot = seat_slot,
962 post_device_event(device,
963 LIBINPUT_EVENT_TOUCH_DOWN,
968 touch_notify_touch_motion(struct libinput_device *device,
975 struct libinput_event_touch *touch_event;
977 touch_event = zalloc(sizeof *touch_event);
981 *touch_event = (struct libinput_event_touch) {
984 .seat_slot = seat_slot,
989 post_device_event(device,
990 LIBINPUT_EVENT_TOUCH_MOTION,
995 touch_notify_touch_up(struct libinput_device *device,
1000 struct libinput_event_touch *touch_event;
1002 touch_event = zalloc(sizeof *touch_event);
1006 *touch_event = (struct libinput_event_touch) {
1009 .seat_slot = seat_slot,
1012 post_device_event(device,
1013 LIBINPUT_EVENT_TOUCH_UP,
1014 &touch_event->base);
1018 touch_notify_frame(struct libinput_device *device,
1021 struct libinput_event_touch *touch_event;
1023 touch_event = zalloc(sizeof *touch_event);
1027 *touch_event = (struct libinput_event_touch) {
1031 post_device_event(device,
1032 LIBINPUT_EVENT_TOUCH_FRAME,
1033 &touch_event->base);
1038 libinput_post_event(struct libinput *libinput,
1039 struct libinput_event *event)
1041 struct libinput_event **events = libinput->events;
1042 size_t events_len = libinput->events_len;
1043 size_t events_count = libinput->events_count;
1048 if (events_count > events_len) {
1050 events = realloc(events, events_len * sizeof *events);
1052 fprintf(stderr, "Failed to reallocate event ring "
1057 if (libinput->events_count > 0 && libinput->events_in == 0) {
1058 libinput->events_in = libinput->events_len;
1059 } else if (libinput->events_count > 0 &&
1060 libinput->events_out >= libinput->events_in) {
1061 move_len = libinput->events_len - libinput->events_out;
1062 new_out = events_len - move_len;
1063 memmove(events + new_out,
1064 events + libinput->events_out,
1065 move_len * sizeof *events);
1066 libinput->events_out = new_out;
1069 libinput->events = events;
1070 libinput->events_len = events_len;
1074 libinput_device_ref(event->device);
1076 libinput->events_count = events_count;
1077 events[libinput->events_in] = event;
1078 libinput->events_in = (libinput->events_in + 1) % libinput->events_len;
1081 LIBINPUT_EXPORT struct libinput_event *
1082 libinput_get_event(struct libinput *libinput)
1084 struct libinput_event *event;
1086 if (libinput->events_count == 0)
1089 event = libinput->events[libinput->events_out];
1090 libinput->events_out =
1091 (libinput->events_out + 1) % libinput->events_len;
1092 libinput->events_count--;
1097 LIBINPUT_EXPORT enum libinput_event_type
1098 libinput_next_event_type(struct libinput *libinput)
1100 struct libinput_event *event;
1102 if (libinput->events_count == 0)
1103 return LIBINPUT_EVENT_NONE;
1105 event = libinput->events[libinput->events_out];
1109 LIBINPUT_EXPORT void *
1110 libinput_get_user_data(struct libinput *libinput)
1112 return libinput->user_data;
1116 libinput_resume(struct libinput *libinput)
1118 return libinput->interface_backend->resume(libinput);
1121 LIBINPUT_EXPORT void
1122 libinput_suspend(struct libinput *libinput)
1124 libinput->interface_backend->suspend(libinput);
1127 LIBINPUT_EXPORT void
1128 libinput_device_set_user_data(struct libinput_device *device, void *user_data)
1130 device->user_data = user_data;
1133 LIBINPUT_EXPORT void *
1134 libinput_device_get_user_data(struct libinput_device *device)
1136 return device->user_data;
1139 LIBINPUT_EXPORT const char *
1140 libinput_device_get_sysname(struct libinput_device *device)
1142 return evdev_device_get_sysname((struct evdev_device *) device);
1145 LIBINPUT_EXPORT const char *
1146 libinput_device_get_output_name(struct libinput_device *device)
1148 return evdev_device_get_output((struct evdev_device *) device);
1151 LIBINPUT_EXPORT struct libinput_seat *
1152 libinput_device_get_seat(struct libinput_device *device)
1154 return device->seat;
1157 LIBINPUT_EXPORT void
1158 libinput_device_led_update(struct libinput_device *device,
1159 enum libinput_led leds)
1161 evdev_device_led_update((struct evdev_device *) device, leds);
1165 libinput_device_get_keys(struct libinput_device *device,
1166 char *keys, size_t size)
1168 return evdev_device_get_keys((struct evdev_device *) device,
1173 LIBINPUT_EXPORT void
1174 libinput_device_calibrate(struct libinput_device *device,
1175 float calibration[6])
1177 evdev_device_calibrate((struct evdev_device *) device, calibration);
1181 libinput_device_has_capability(struct libinput_device *device,
1182 enum libinput_device_capability capability)
1184 return evdev_device_has_capability((struct evdev_device *) device,
1189 libinput_device_get_size(struct libinput_device *device,
1193 return evdev_device_get_size((struct evdev_device *)device,
1198 LIBINPUT_EXPORT struct libinput_event *
1199 libinput_event_device_notify_get_base_event(struct libinput_event_device_notify *event)
1201 return &event->base;
1204 LIBINPUT_EXPORT struct libinput_event *
1205 libinput_event_keyboard_get_base_event(struct libinput_event_keyboard *event)
1207 return &event->base;
1210 LIBINPUT_EXPORT struct libinput_event *
1211 libinput_event_pointer_get_base_event(struct libinput_event_pointer *event)
1213 return &event->base;
1216 LIBINPUT_EXPORT struct libinput_event *
1217 libinput_event_touch_get_base_event(struct libinput_event_touch *event)
1219 return &event->base;