1 /*
2 * Copyright © 2013 Jonas Ådahl
3 * Copyright © 2013-2015 Red Hat, Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 */
24
25 #ifndef LIBINPUT_PRIVATE_H
26 #define LIBINPUT_PRIVATE_H
27
28 #include "config.h"
29
30 #include <errno.h>
31 #include <math.h>
32 #include <stdarg.h>
33
34 #if HAVE_LIBWACOM
35 #include <libwacom/libwacom.h>
36 #endif
37
38 #include "linux/input.h"
39
40 #include "libinput.h"
41 #include "libinput-private-config.h"
42 #include "libinput-util.h"
43 #include "libinput-version.h"
44
45 struct libinput_source;
46
47 /* A coordinate pair in device coordinates */
48 struct device_coords {
49 int x, y;
50 };
51
52 /*
53 * A coordinate pair in device coordinates, capable of holding non discrete
54 * values, this is necessary e.g. when device coordinates get averaged.
55 */
56 struct device_float_coords {
57 double x, y;
58 };
59
60 /* A dpi-normalized coordinate pair */
61 struct normalized_coords {
62 double x, y;
63 };
64
65 /* A discrete step pair (mouse wheels) */
66 struct discrete_coords {
67 int x, y;
68 };
69
70 /* A pair of coordinates normalized to a [0,1] or [-1, 1] range */
71 struct normalized_range_coords {
72 double x, y;
73 };
74
75 /* A pair of angles in degrees */
76 struct wheel_angle {
77 double x, y;
78 };
79
80 /* A pair of wheel click data for the 120-normalized range */
81 struct wheel_v120 {
82 int x, y;
83 };
84
85 /* A pair of angles in degrees */
86 struct tilt_degrees {
87 double x, y;
88 };
89
90 /* A threshold with an upper and lower limit */
91 struct threshold {
92 int upper;
93 int lower;
94 };
95
96 /* A pair of coordinates in mm */
97 struct phys_coords {
98 double x;
99 double y;
100 };
101
102 /* A rectangle in mm, x/y is the top-left corner */
103 struct phys_rect {
104 double x, y;
105 double w, h;
106 };
107
108 /* A rectangle in device coordinates, x/y is the top-left corner */
109 struct device_coord_rect {
110 int x, y;
111 int w, h;
112 };
113
114 /* A pair of major/minor in mm */
115 struct phys_ellipsis {
116 double major;
117 double minor;
118 };
119
120 struct libinput_interface_backend {
121 int (*resume)(struct libinput *libinput);
122 void (*suspend)(struct libinput *libinput);
123 void (*destroy)(struct libinput *libinput);
124 int (*device_change_seat)(struct libinput_device *device,
125 const char *seat_name);
126 };
127
128 struct libinput {
129 int epoll_fd;
130 struct list source_destroy_list;
131
132 struct list seat_list;
133
134 struct {
135 struct list list;
136 struct libinput_source *source;
137 int fd;
138 uint64_t next_expiry;
139 } timer;
140
141 struct libinput_event **events;
142 size_t events_count;
143 size_t events_len;
144 size_t events_in;
145 size_t events_out;
146
147 struct list tool_list;
148
149 const struct libinput_interface *interface;
150 const struct libinput_interface_backend *interface_backend;
151
152 libinput_log_handler log_handler;
153 enum libinput_log_priority log_priority;
154 void *user_data;
155 int refcount;
156
157 struct list device_group_list;
158
159 uint64_t last_event_time;
160 uint64_t dispatch_time;
161
162 bool quirks_initialized;
163 struct quirks_context *quirks;
164
165 #if HAVE_LIBWACOM
166 struct {
167 WacomDeviceDatabase *db;
168 size_t refcount;
169 } libwacom;
170 #endif
171 };
172
173 typedef void (*libinput_seat_destroy_func) (struct libinput_seat *seat);
174
175 struct libinput_seat {
176 struct libinput *libinput;
177 struct list link;
178 struct list devices_list;
179 void *user_data;
180 int refcount;
181 libinput_seat_destroy_func destroy;
182
183 char *physical_name;
184 char *logical_name;
185
186 uint32_t slot_map;
187
188 uint32_t button_count[KEY_CNT];
189 };
190
191 struct libinput_device_config_tap {
192 int (*count)(struct libinput_device *device);
193 enum libinput_config_status (*set_enabled)(struct libinput_device *device,
194 enum libinput_config_tap_state enable);
195 enum libinput_config_tap_state (*get_enabled)(struct libinput_device *device);
196 enum libinput_config_tap_state (*get_default)(struct libinput_device *device);
197
198 enum libinput_config_status (*set_map)(struct libinput_device *device,
199 enum libinput_config_tap_button_map map);
200 enum libinput_config_tap_button_map (*get_map)(struct libinput_device *device);
201 enum libinput_config_tap_button_map (*get_default_map)(struct libinput_device *device);
202
203 enum libinput_config_status (*set_drag_enabled)(struct libinput_device *device,
204 enum libinput_config_drag_state);
205 enum libinput_config_drag_state (*get_drag_enabled)(struct libinput_device *device);
206 enum libinput_config_drag_state (*get_default_drag_enabled)(struct libinput_device *device);
207
208 enum libinput_config_status (*set_draglock_enabled)(struct libinput_device *device,
209 enum libinput_config_drag_lock_state);
210 enum libinput_config_drag_lock_state (*get_draglock_enabled)(struct libinput_device *device);
211 enum libinput_config_drag_lock_state (*get_default_draglock_enabled)(struct libinput_device *device);
212 };
213
214 struct libinput_device_config_calibration {
215 int (*has_matrix)(struct libinput_device *device);
216 enum libinput_config_status (*set_matrix)(struct libinput_device *device,
217 const float matrix[6]);
218 int (*get_matrix)(struct libinput_device *device,
219 float matrix[6]);
220 int (*get_default_matrix)(struct libinput_device *device,
221 float matrix[6]);
222 };
223
224 struct libinput_device_config_send_events {
225 uint32_t (*get_modes)(struct libinput_device *device);
226 enum libinput_config_status (*set_mode)(struct libinput_device *device,
227 enum libinput_config_send_events_mode mode);
228 enum libinput_config_send_events_mode (*get_mode)(struct libinput_device *device);
229 enum libinput_config_send_events_mode (*get_default_mode)(struct libinput_device *device);
230 };
231
232 struct libinput_device_config_accel {
233 int (*available)(struct libinput_device *device);
234 enum libinput_config_status (*set_speed)(struct libinput_device *device,
235 double speed);
236 double (*get_speed)(struct libinput_device *device);
237 double (*get_default_speed)(struct libinput_device *device);
238
239 uint32_t (*get_profiles)(struct libinput_device *device);
240 enum libinput_config_status (*set_profile)(struct libinput_device *device,
241 enum libinput_config_accel_profile);
242 enum libinput_config_accel_profile (*get_profile)(struct libinput_device *device);
243 enum libinput_config_accel_profile (*get_default_profile)(struct libinput_device *device);
244 };
245
246 struct libinput_device_config_natural_scroll {
247 int (*has)(struct libinput_device *device);
248 enum libinput_config_status (*set_enabled)(struct libinput_device *device,
249 int enabled);
250 int (*get_enabled)(struct libinput_device *device);
251 int (*get_default_enabled)(struct libinput_device *device);
252 };
253
254 struct libinput_device_config_left_handed {
255 int (*has)(struct libinput_device *device);
256 enum libinput_config_status (*set)(struct libinput_device *device, int left_handed);
257 int (*get)(struct libinput_device *device);
258 int (*get_default)(struct libinput_device *device);
259 };
260
261 struct libinput_device_config_scroll_method {
262 uint32_t (*get_methods)(struct libinput_device *device);
263 enum libinput_config_status (*set_method)(struct libinput_device *device,
264 enum libinput_config_scroll_method method);
265 enum libinput_config_scroll_method (*get_method)(struct libinput_device *device);
266 enum libinput_config_scroll_method (*get_default_method)(struct libinput_device *device);
267 enum libinput_config_status (*set_button)(struct libinput_device *device,
268 uint32_t button);
269 uint32_t (*get_button)(struct libinput_device *device);
270 uint32_t (*get_default_button)(struct libinput_device *device);
271 enum libinput_config_status (*set_button_lock)(struct libinput_device *device,
272 enum libinput_config_scroll_button_lock_state);
273 enum libinput_config_scroll_button_lock_state (*get_button_lock)(struct libinput_device *device);
274 enum libinput_config_scroll_button_lock_state (*get_default_button_lock)(struct libinput_device *device);
275 };
276
277 struct libinput_device_config_click_method {
278 uint32_t (*get_methods)(struct libinput_device *device);
279 enum libinput_config_status (*set_method)(struct libinput_device *device,
280 enum libinput_config_click_method method);
281 enum libinput_config_click_method (*get_method)(struct libinput_device *device);
282 enum libinput_config_click_method (*get_default_method)(struct libinput_device *device);
283 };
284
285 struct libinput_device_config_middle_emulation {
286 int (*available)(struct libinput_device *device);
287 enum libinput_config_status (*set)(
288 struct libinput_device *device,
289 enum libinput_config_middle_emulation_state);
290 enum libinput_config_middle_emulation_state (*get)(
291 struct libinput_device *device);
292 enum libinput_config_middle_emulation_state (*get_default)(
293 struct libinput_device *device);
294 };
295
296 struct libinput_device_config_dwt {
297 int (*is_available)(struct libinput_device *device);
298 enum libinput_config_status (*set_enabled)(
299 struct libinput_device *device,
300 enum libinput_config_dwt_state enable);
301 enum libinput_config_dwt_state (*get_enabled)(
302 struct libinput_device *device);
303 enum libinput_config_dwt_state (*get_default_enabled)(
304 struct libinput_device *device);
305 };
306
307 struct libinput_device_config_rotation {
308 int (*is_available)(struct libinput_device *device);
309 enum libinput_config_status (*set_angle)(
310 struct libinput_device *device,
311 unsigned int degrees_cw);
312 unsigned int (*get_angle)(struct libinput_device *device);
313 unsigned int (*get_default_angle)(struct libinput_device *device);
314 };
315
316 struct libinput_device_config_gesture {
317 enum libinput_config_status (*set_hold_enabled)(struct libinput_device *device,
318 enum libinput_config_hold_state enabled);
319 enum libinput_config_hold_state (*get_hold_enabled)(struct libinput_device *device);
320 enum libinput_config_hold_state (*get_hold_default)(struct libinput_device *device);
321 };
322
323 struct libinput_device_config {
324 struct libinput_device_config_tap *tap;
325 struct libinput_device_config_calibration *calibration;
326 struct libinput_device_config_send_events *sendevents;
327 struct libinput_device_config_accel *accel;
328 struct libinput_device_config_natural_scroll *natural_scroll;
329 struct libinput_device_config_left_handed *left_handed;
330 struct libinput_device_config_scroll_method *scroll_method;
331 struct libinput_device_config_click_method *click_method;
332 struct libinput_device_config_middle_emulation *middle_emulation;
333 struct libinput_device_config_dwt *dwt;
334 struct libinput_device_config_rotation *rotation;
335 struct libinput_device_config_gesture *gesture;
336 };
337
338 struct libinput_device_group {
339 int refcount;
340 void *user_data;
341 char *identifier; /* unique identifier or NULL for singletons */
342
343 struct list link;
344 };
345
346 struct libinput_device {
347 struct libinput_seat *seat;
348 struct libinput_device_group *group;
349 struct list link;
350 struct list event_listeners;
351 void *user_data;
352 int refcount;
353 struct libinput_device_config config;
354 };
355
356 enum libinput_tablet_tool_axis {
357 LIBINPUT_TABLET_TOOL_AXIS_X = 1,
358 LIBINPUT_TABLET_TOOL_AXIS_Y = 2,
359 LIBINPUT_TABLET_TOOL_AXIS_DISTANCE = 3,
360 LIBINPUT_TABLET_TOOL_AXIS_PRESSURE = 4,
361 LIBINPUT_TABLET_TOOL_AXIS_TILT_X = 5,
362 LIBINPUT_TABLET_TOOL_AXIS_TILT_Y = 6,
363 LIBINPUT_TABLET_TOOL_AXIS_ROTATION_Z = 7,
364 LIBINPUT_TABLET_TOOL_AXIS_SLIDER = 8,
365 LIBINPUT_TABLET_TOOL_AXIS_REL_WHEEL = 9,
366 LIBINPUT_TABLET_TOOL_AXIS_SIZE_MAJOR = 10,
367 LIBINPUT_TABLET_TOOL_AXIS_SIZE_MINOR = 11,
368 };
369
370 #define LIBINPUT_TABLET_TOOL_AXIS_MAX LIBINPUT_TABLET_TOOL_AXIS_SIZE_MINOR
371
372 struct tablet_axes {
373 struct device_coords point;
374 struct normalized_coords delta;
375 double distance;
376 double pressure;
377 struct tilt_degrees tilt;
378 double rotation;
379 double slider;
380 double wheel;
381 int wheel_discrete;
382 struct phys_ellipsis size;
383 };
384
385 struct libinput_tablet_tool {
386 struct list link;
387 uint32_t serial;
388 uint32_t tool_id;
389 enum libinput_tablet_tool_type type;
390 unsigned char axis_caps[NCHARS(LIBINPUT_TABLET_TOOL_AXIS_MAX + 1)];
391 unsigned char buttons[NCHARS(KEY_MAX) + 1];
392 int refcount;
393 void *user_data;
394
395 struct {
396 /* The pressure threshold assumes a pressure_offset of 0 */
397 struct threshold threshold;
398 /* pressure_offset includes axis->minimum */
399 int offset;
400 bool has_offset;
401 } pressure;
402 };
403
404 struct libinput_tablet_pad_mode_group {
405 struct libinput_device *device;
406 struct list link;
407 int refcount;
408 void *user_data;
409
410 unsigned int index;
411 unsigned int num_modes;
412 unsigned int current_mode;
413
414 uint32_t button_mask;
415 uint32_t ring_mask;
416 uint32_t strip_mask;
417
418 uint32_t toggle_button_mask;
419
420 void (*destroy)(struct libinput_tablet_pad_mode_group *group);
421 };
422
423 struct libinput_event {
424 enum libinput_event_type type;
425 struct libinput_device *device;
426 };
427
428 struct libinput_event_listener {
429 struct list link;
430 void (*notify_func)(uint64_t time, struct libinput_event *ev, void *notify_func_data);
431 void *notify_func_data;
432 };
433
434 typedef void (*libinput_source_dispatch_t)(void *data);
435
436 #define log_debug(li_, ...) log_msg((li_), LIBINPUT_LOG_PRIORITY_DEBUG, __VA_ARGS__)
437 #define log_info(li_, ...) log_msg((li_), LIBINPUT_LOG_PRIORITY_INFO, __VA_ARGS__)
438 #define log_error(li_, ...) log_msg((li_), LIBINPUT_LOG_PRIORITY_ERROR, __VA_ARGS__)
439 #define log_bug_kernel(li_, ...) log_msg((li_), LIBINPUT_LOG_PRIORITY_ERROR, "kernel bug: " __VA_ARGS__)
440 #define log_bug_libinput(li_, ...) log_msg((li_), LIBINPUT_LOG_PRIORITY_ERROR, "libinput bug: " __VA_ARGS__)
441 #define log_bug_client(li_, ...) log_msg((li_), LIBINPUT_LOG_PRIORITY_ERROR, "client bug: " __VA_ARGS__)
442
443 #define log_debug_ratelimit(li_, r_, ...) log_msg_ratelimit((li_), (r_), LIBINPUT_LOG_PRIORITY_DEBUG, __VA_ARGS__)
444 #define log_info_ratelimit(li_, r_, ...) log_msg_ratelimit((li_), (r_), LIBINPUT_LOG_PRIORITY_INFO, __VA_ARGS__)
445 #define log_error_ratelimit(li_, r_, ...) log_msg_ratelimit((li_), (r_), LIBINPUT_LOG_PRIORITY_ERROR, __VA_ARGS__)
446 #define log_bug_kernel_ratelimit(li_, r_, ...) log_msg_ratelimit((li_), (r_), LIBINPUT_LOG_PRIORITY_ERROR, "kernel bug: " __VA_ARGS__)
447 #define log_bug_libinput_ratelimit(li_, r_, ...) log_msg_ratelimit((li_), (r_), LIBINPUT_LOG_PRIORITY_ERROR, "libinput bug: " __VA_ARGS__)
448 #define log_bug_client_ratelimit(li_, r_, ...) log_msg_ratelimit((li_), (r_), LIBINPUT_LOG_PRIORITY_ERROR, "client bug: " __VA_ARGS__)
449
450 static inline bool
is_logged(const struct libinput * libinput,enum libinput_log_priority priority)451 is_logged(const struct libinput *libinput,
452 enum libinput_log_priority priority)
453 {
454 return libinput->log_handler &&
455 libinput->log_priority <= priority;
456 }
457
458
459 void
460 log_msg_ratelimit(struct libinput *libinput,
461 struct ratelimit *ratelimit,
462 enum libinput_log_priority priority,
463 const char *format, ...)
464 LIBINPUT_ATTRIBUTE_PRINTF(4, 5);
465
466 void
467 log_msg(struct libinput *libinput,
468 enum libinput_log_priority priority,
469 const char *format, ...)
470 LIBINPUT_ATTRIBUTE_PRINTF(3, 4);
471
472 void
473 log_msg_va(struct libinput *libinput,
474 enum libinput_log_priority priority,
475 const char *format,
476 va_list args)
477 LIBINPUT_ATTRIBUTE_PRINTF(3, 0);
478
479 int
480 libinput_init(struct libinput *libinput,
481 const struct libinput_interface *interface,
482 const struct libinput_interface_backend *interface_backend,
483 void *user_data);
484
485 void
486 libinput_init_quirks(struct libinput *libinput);
487
488 struct libinput_source *
489 libinput_add_fd(struct libinput *libinput,
490 int fd,
491 libinput_source_dispatch_t dispatch,
492 void *data);
493
494 void
495 libinput_remove_source(struct libinput *libinput,
496 struct libinput_source *source);
497
498 int
499 open_restricted(struct libinput *libinput,
500 const char *path, int flags);
501
502 void
503 close_restricted(struct libinput *libinput, int fd);
504
505 bool
506 ignore_litest_test_suite_device(struct udev_device *device);
507
508 void
509 libinput_seat_init(struct libinput_seat *seat,
510 struct libinput *libinput,
511 const char *physical_name,
512 const char *logical_name,
513 libinput_seat_destroy_func destroy);
514
515 void
516 libinput_device_init(struct libinput_device *device,
517 struct libinput_seat *seat);
518
519 struct libinput_device_group *
520 libinput_device_group_create(struct libinput *libinput,
521 const char *identifier);
522
523 struct libinput_device_group *
524 libinput_device_group_find_group(struct libinput *libinput,
525 const char *identifier);
526
527 void
528 libinput_device_set_device_group(struct libinput_device *device,
529 struct libinput_device_group *group);
530
531 void
532 libinput_device_init_event_listener(struct libinput_event_listener *listener);
533
534 void
535 libinput_device_add_event_listener(struct libinput_device *device,
536 struct libinput_event_listener *listener,
537 void (*notify_func)(
538 uint64_t time,
539 struct libinput_event *event,
540 void *notify_func_data),
541 void *notify_func_data);
542
543 void
544 libinput_device_remove_event_listener(struct libinput_event_listener *listener);
545
546 void
547 notify_added_device(struct libinput_device *device);
548
549 void
550 notify_removed_device(struct libinput_device *device);
551
552 void
553 keyboard_notify_key(struct libinput_device *device,
554 uint64_t time,
555 uint32_t key,
556 enum libinput_key_state state);
557
558 void
559 pointer_notify_motion(struct libinput_device *device,
560 uint64_t time,
561 const struct normalized_coords *delta,
562 const struct device_float_coords *raw);
563
564 void
565 pointer_notify_motion_absolute(struct libinput_device *device,
566 uint64_t time,
567 const struct device_coords *point);
568
569 void
570 pointer_notify_button(struct libinput_device *device,
571 uint64_t time,
572 int32_t button,
573 enum libinput_button_state state);
574
575 void
576 pointer_notify_axis_finger(struct libinput_device *device,
577 uint64_t time,
578 uint32_t axes,
579 const struct normalized_coords *delta);
580 void
581 pointer_notify_axis_continuous(struct libinput_device *device,
582 uint64_t time,
583 uint32_t axes,
584 const struct normalized_coords *delta);
585
586 void
587 pointer_notify_axis_legacy_wheel(struct libinput_device *device,
588 uint64_t time,
589 uint32_t axes,
590 const struct normalized_coords *delta,
591 const struct discrete_coords *discrete);
592
593 void
594 pointer_notify_axis_wheel(struct libinput_device *device,
595 uint64_t time,
596 uint32_t axes,
597 const struct normalized_coords *delta,
598 const struct wheel_v120 *v120);
599
600 void
601 touch_notify_touch_down(struct libinput_device *device,
602 uint64_t time,
603 int32_t slot,
604 int32_t seat_slot,
605 const struct device_coords *point);
606
607 void
608 touch_notify_touch_motion(struct libinput_device *device,
609 uint64_t time,
610 int32_t slot,
611 int32_t seat_slot,
612 const struct device_coords *point);
613
614 void
615 touch_notify_touch_up(struct libinput_device *device,
616 uint64_t time,
617 int32_t slot,
618 int32_t seat_slot);
619
620 void
621 touch_notify_touch_cancel(struct libinput_device *device,
622 uint64_t time,
623 int32_t slot,
624 int32_t seat_slot);
625
626 void
627 touch_notify_frame(struct libinput_device *device,
628 uint64_t time);
629
630 void
631 gesture_notify_swipe(struct libinput_device *device,
632 uint64_t time,
633 enum libinput_event_type type,
634 int finger_count,
635 const struct normalized_coords *delta,
636 const struct normalized_coords *unaccel);
637
638 void
639 gesture_notify_swipe_end(struct libinput_device *device,
640 uint64_t time,
641 int finger_count,
642 bool cancelled);
643
644 void
645 gesture_notify_pinch(struct libinput_device *device,
646 uint64_t time,
647 enum libinput_event_type type,
648 int finger_count,
649 const struct normalized_coords *delta,
650 const struct normalized_coords *unaccel,
651 double scale,
652 double angle);
653
654 void
655 gesture_notify_pinch_end(struct libinput_device *device,
656 uint64_t time,
657 int finger_count,
658 double scale,
659 bool cancelled);
660
661 void
662 gesture_notify_hold(struct libinput_device *device,
663 uint64_t time,
664 int finger_count);
665
666 void
667 gesture_notify_hold_end(struct libinput_device *device,
668 uint64_t time,
669 int finger_count,
670 bool cancelled);
671
672 void
673 tablet_notify_axis(struct libinput_device *device,
674 uint64_t time,
675 struct libinput_tablet_tool *tool,
676 enum libinput_tablet_tool_tip_state tip_state,
677 unsigned char *changed_axes,
678 const struct tablet_axes *axes);
679
680 void
681 tablet_notify_proximity(struct libinput_device *device,
682 uint64_t time,
683 struct libinput_tablet_tool *tool,
684 enum libinput_tablet_tool_proximity_state state,
685 unsigned char *changed_axes,
686 const struct tablet_axes *axes);
687
688 void
689 tablet_notify_tip(struct libinput_device *device,
690 uint64_t time,
691 struct libinput_tablet_tool *tool,
692 enum libinput_tablet_tool_tip_state tip_state,
693 unsigned char *changed_axes,
694 const struct tablet_axes *axes);
695
696 void
697 tablet_notify_button(struct libinput_device *device,
698 uint64_t time,
699 struct libinput_tablet_tool *tool,
700 enum libinput_tablet_tool_tip_state tip_state,
701 const struct tablet_axes *axes,
702 int32_t button,
703 enum libinput_button_state state);
704
705 void
706 tablet_pad_notify_button(struct libinput_device *device,
707 uint64_t time,
708 int32_t button,
709 enum libinput_button_state state,
710 struct libinput_tablet_pad_mode_group *group);
711 void
712 tablet_pad_notify_ring(struct libinput_device *device,
713 uint64_t time,
714 unsigned int number,
715 double value,
716 enum libinput_tablet_pad_ring_axis_source source,
717 struct libinput_tablet_pad_mode_group *group);
718 void
719 tablet_pad_notify_strip(struct libinput_device *device,
720 uint64_t time,
721 unsigned int number,
722 double value,
723 enum libinput_tablet_pad_strip_axis_source source,
724 struct libinput_tablet_pad_mode_group *group);
725 void
726 tablet_pad_notify_key(struct libinput_device *device,
727 uint64_t time,
728 int32_t key,
729 enum libinput_key_state state);
730 void
731 switch_notify_toggle(struct libinput_device *device,
732 uint64_t time,
733 enum libinput_switch sw,
734 enum libinput_switch_state state);
735
736 static inline uint64_t
libinput_now(struct libinput * libinput)737 libinput_now(struct libinput *libinput)
738 {
739 struct timespec ts = { 0, 0 };
740
741 if (clock_gettime(CLOCK_MONOTONIC, &ts) != 0) {
742 log_error(libinput, "clock_gettime failed: %s\n", strerror(errno));
743 return 0;
744 }
745
746 return s2us(ts.tv_sec) + ns2us(ts.tv_nsec);
747 }
748
749 static inline struct device_float_coords
device_delta(const struct device_coords a,const struct device_coords b)750 device_delta(const struct device_coords a, const struct device_coords b)
751 {
752 struct device_float_coords delta;
753
754 delta.x = a.x - b.x;
755 delta.y = a.y - b.y;
756
757 return delta;
758 }
759
760 static inline struct device_float_coords
device_average(const struct device_coords a,const struct device_coords b)761 device_average(const struct device_coords a, const struct device_coords b)
762 {
763 struct device_float_coords average;
764
765 average.x = (a.x + b.x) / 2.0;
766 average.y = (a.y + b.y) / 2.0;
767
768 return average;
769 }
770
771 static inline struct device_float_coords
device_float_delta(const struct device_float_coords a,const struct device_float_coords b)772 device_float_delta(const struct device_float_coords a, const struct device_float_coords b)
773 {
774 struct device_float_coords delta;
775
776 delta.x = a.x - b.x;
777 delta.y = a.y - b.y;
778
779 return delta;
780 }
781
782 static inline struct device_float_coords
device_float_average(const struct device_float_coords a,const struct device_float_coords b)783 device_float_average(const struct device_float_coords a, const struct device_float_coords b)
784 {
785 struct device_float_coords average;
786
787 average.x = (a.x + b.x) / 2.0;
788 average.y = (a.y + b.y) / 2.0;
789
790 return average;
791 }
792
793 static inline bool
device_float_is_zero(const struct device_float_coords coords)794 device_float_is_zero(const struct device_float_coords coords)
795 {
796 return coords.x == 0.0 && coords.y == 0.0;
797 }
798
799 static inline double
normalized_length(const struct normalized_coords norm)800 normalized_length(const struct normalized_coords norm)
801 {
802 return hypot(norm.x, norm.y);
803 }
804
805 static inline bool
normalized_is_zero(const struct normalized_coords norm)806 normalized_is_zero(const struct normalized_coords norm)
807 {
808 return norm.x == 0.0 && norm.y == 0.0;
809 }
810
811 static inline double
length_in_mm(const struct phys_coords mm)812 length_in_mm(const struct phys_coords mm)
813 {
814 return hypot(mm.x, mm.y);
815 }
816
817 enum directions {
818 N = bit(0),
819 NE = bit(1),
820 E = bit(2),
821 SE = bit(3),
822 S = bit(4),
823 SW = bit(5),
824 W = bit(6),
825 NW = bit(7),
826 UNDEFINED_DIRECTION = 0xff
827 };
828
829 static inline uint32_t
xy_get_direction(double x,double y)830 xy_get_direction(double x, double y)
831 {
832 uint32_t dir = UNDEFINED_DIRECTION;
833 int d1, d2;
834 double r;
835
836 if (fabs(x) < 2.0 && fabs(y) < 2.0) {
837 if (x > 0.0 && y > 0.0)
838 dir = S | SE | E;
839 else if (x > 0.0 && y < 0.0)
840 dir = N | NE | E;
841 else if (x < 0.0 && y > 0.0)
842 dir = S | SW | W;
843 else if (x < 0.0 && y < 0.0)
844 dir = N | NW | W;
845 else if (x > 0.0)
846 dir = NE | E | SE;
847 else if (x < 0.0)
848 dir = NW | W | SW;
849 else if (y > 0.0)
850 dir = SE | S | SW;
851 else if (y < 0.0)
852 dir = NE | N | NW;
853 } else {
854 /* Calculate r within the interval [0 to 8)
855 *
856 * r = [0 .. 2π] where 0 is North
857 * d_f = r / 2π ([0 .. 1))
858 * d_8 = 8 * d_f
859 */
860 r = atan2(y, x);
861 r = fmod(r + 2.5*M_PI, 2*M_PI);
862 r *= 4*M_1_PI;
863
864 /* Mark one or two close enough octants */
865 d1 = (int)(r + 0.9) % 8;
866 d2 = (int)(r + 0.1) % 8;
867
868 dir = (1 << d1) | (1 << d2);
869 }
870
871 return dir;
872 }
873
874 static inline uint32_t
phys_get_direction(const struct phys_coords mm)875 phys_get_direction(const struct phys_coords mm)
876 {
877 return xy_get_direction(mm.x, mm.y);
878 }
879
880 /**
881 * Get the direction for the given set of coordinates.
882 * assumption: coordinates are normalized to one axis resolution.
883 */
884 static inline uint32_t
device_float_get_direction(const struct device_float_coords coords)885 device_float_get_direction(const struct device_float_coords coords)
886 {
887 return xy_get_direction(coords.x, coords.y);
888 }
889
890 /**
891 * Returns true if the point is within the given rectangle, including the
892 * left edge but excluding the right edge.
893 */
894 static inline bool
point_in_rect(const struct device_coords * point,const struct device_coord_rect * rect)895 point_in_rect(const struct device_coords *point,
896 const struct device_coord_rect *rect)
897 {
898 return (point->x >= rect->x &&
899 point->x < rect->x + rect->w &&
900 point->y >= rect->y &&
901 point->y < rect->y + rect->h);
902 }
903
904 #if HAVE_LIBWACOM
905 WacomDeviceDatabase *
906 libinput_libwacom_ref(struct libinput *li);
907 void
908 libinput_libwacom_unref(struct libinput *li);
909 #else
libinput_libwacom_ref(struct libinput * li)910 static inline void *libinput_libwacom_ref(struct libinput *li) { return NULL; }
libinput_libwacom_unref(struct libinput * li)911 static inline void libinput_libwacom_unref(struct libinput *li) {}
912 #endif
913
914
915 #endif /* LIBINPUT_PRIVATE_H */
916