84     struct PointerBarrier barrier;  member
86     /* num_devices/device_ids are devices the barrier applies to */
144 barrier_is_horizontal(const struct PointerBarrier *barrier)  in barrier_is_horizontal()  argument
146     return barrier->y1 == barrier->y2;  in barrier_is_horizontal()
150 barrier_is_vertical(const struct PointerBarrier *barrier)  in barrier_is_vertical()  argument
152     return barrier->x1 == barrier->x2;  in barrier_is_vertical()
156  * @return The set of barrier movement directions the movement vector
178  * Test if the barrier may block movement in the direction defined by
180  * blocked, it does not test if the barrier actually blocks the movement.
182  * @return TRUE if the barrier blocks the direction of movement or FALSE
186 barrier_is_blocking_direction(const struct PointerBarrier * barrier,  in barrier_is_blocking_direction()  argument
190     return (barrier->directions & direction) != direction;  in barrier_is_blocking_direction()
211  * barrier. A movement vector with the startpoint or endpoint adjacent to
212  * the barrier itself counts as intersecting.
219  * intersection with the barrier (if applicable).
220  * @return TRUE if the barrier intersects with the given vector
223 barrier_is_blocking(const struct PointerBarrier * barrier,  in barrier_is_blocking()  argument
226     if (barrier_is_vertical(barrier)) {  in barrier_is_blocking()
228         t = T(barrier->x1, x1, x2);  in barrier_is_blocking()
232         /* Edge case: moving away from barrier. */  in barrier_is_blocking()
237         if (!inside_segment(y, barrier->y1, barrier->y2))  in barrier_is_blocking()
240         *distance = sqrt((pow(y - y1, 2) + pow(barrier->x1 - x1, 2)));  in barrier_is_blocking()
245         t = T(barrier->y1, y1, y2);  in barrier_is_blocking()
249         /* Edge case: moving away from barrier. */  in barrier_is_blocking()
254         if (!inside_segment(x, barrier->x1, barrier->x2))  in barrier_is_blocking()
257         *distance = sqrt((pow(x - x1, 2) + pow(barrier->y1 - y1, 2)));  in barrier_is_blocking()
264 barrier_inside_hit_box(struct PointerBarrier *barrier, int x, int y)  in barrier_inside_hit_box()  argument
269     x1 = barrier->x1;  in barrier_inside_hit_box()
270     x2 = barrier->x2;  in barrier_inside_hit_box()
271     y1 = barrier->y1;  in barrier_inside_hit_box()
272     y2 = barrier->y2;  in barrier_inside_hit_box()
273     dir = ~(barrier->directions);  in barrier_inside_hit_box()
275     if (barrier_is_vertical(barrier)) {  in barrier_inside_hit_box()
281     if (barrier_is_horizontal(barrier)) {  in barrier_inside_hit_box()
317  * Find the nearest barrier client that is blocking movement from x1/y1 to x2/y2.
324  * @return The barrier nearest to the movement origin that blocks this movement.
335         struct PointerBarrier *b = &c->barrier;  in barrier_find_nearest()
361  * Clamp to the given barrier given the movement direction specified in dir.
363  * @param barrier The barrier to clamp to
369 barrier_clamp_to_barrier(struct PointerBarrier *barrier, int dir, int *x,  in barrier_clamp_to_barrier()  argument
372     if (barrier_is_vertical(barrier)) {  in barrier_clamp_to_barrier()
373         if ((dir & BarrierNegativeX) & ~barrier->directions)  in barrier_clamp_to_barrier()
374             *x = barrier->x1;  in barrier_clamp_to_barrier()
375         if ((dir & BarrierPositiveX) & ~barrier->directions)  in barrier_clamp_to_barrier()
376             *x = barrier->x1 - 1;  in barrier_clamp_to_barrier()
378     if (barrier_is_horizontal(barrier)) {  in barrier_clamp_to_barrier()
379         if ((dir & BarrierNegativeY) & ~barrier->directions)  in barrier_clamp_to_barrier()
380             *y = barrier->y1;  in barrier_clamp_to_barrier()
381         if ((dir & BarrierPositiveY) & ~barrier->directions)  in barrier_clamp_to_barrier()
382             *y = barrier->y1 - 1;  in barrier_clamp_to_barrier()
429      * Given the origin and the movement vector, get the nearest barrier  in input_constrain_cursor()
431      * Clamp to that barrier.  in input_constrain_cursor()
433      * destination, again finding the nearest barrier and clamping.  in input_constrain_cursor()
445         nearest = &c->barrier;  in input_constrain_cursor()
492         if (barrier_inside_hit_box(&c->barrier, x, y))  in input_constrain_cursor()
619     ret->id = stuff->barrier;  in CreatePointerBarrierClient()
620     ret->barrier.x1 = stuff->x1;  in CreatePointerBarrierClient()
621     ret->barrier.x2 = stuff->x2;  in CreatePointerBarrierClient()
622     ret->barrier.y1 = stuff->y1;  in CreatePointerBarrierClient()
623     ret->barrier.y2 = stuff->y2;  in CreatePointerBarrierClient()
624     sort_min_max(&ret->barrier.x1, &ret->barrier.x2);  in CreatePointerBarrierClient()
625     sort_min_max(&ret->barrier.y1, &ret->barrier.y2);  in CreatePointerBarrierClient()
626     ret->barrier.directions = stuff->directions & 0x0f;  in CreatePointerBarrierClient()
627     if (barrier_is_horizontal(&ret->barrier))  in CreatePointerBarrierClient()
628         ret->barrier.directions &= ~(BarrierPositiveX | BarrierNegativeX);  in CreatePointerBarrierClient()
629     if (barrier_is_vertical(&ret->barrier))  in CreatePointerBarrierClient()
630         ret->barrier.directions &= ~(BarrierPositiveY | BarrierNegativeY);  in CreatePointerBarrierClient()
652     c = container_of(data, struct PointerBarrierClient, barrier);  in BarrierFreeBarrier()
707     struct PointerBarrierClient *barrier;  in add_master_func()  local
712     barrier = container_of(b, struct PointerBarrierClient, barrier);  in add_master_func()
719     xorg_list_add(&pbd->entry, &barrier->per_device);  in add_master_func()
726     struct PointerBarrierClient *barrier;  in remove_master_func()  local
738     barrier = container_of(b, struct PointerBarrierClient, barrier);  in remove_master_func()
740     pbd = GetBarrierDevice(barrier, *deviceid);  in remove_master_func()
752             .root = barrier->screen->root->drawable.id,  in remove_master_func()
753             .window = barrier->window,  in remove_master_func()
757             .barrierid = barrier->id,  in remove_master_func()
784     struct PointerBarrierClient *barrier;  in XICreatePointerBarrier()  local
806     if ((err = CreatePointerBarrierClient(client, stuff, &barrier)))  in XICreatePointerBarrier()
809     if (!AddResource(stuff->barrier, PointerBarrierType, &barrier->barrier))  in XICreatePointerBarrier()
820     void *barrier;  in XIDestroyPointerBarrier()  local
822     err = dixLookupResourceByType((void **) &barrier, stuff->barrier,  in XIDestroyPointerBarrier()
825         client->errorValue = stuff->barrier;  in XIDestroyPointerBarrier()
829     if (CLIENT_ID(stuff->barrier) != client->index)  in XIDestroyPointerBarrier()
832     FreeResource(stuff->barrier, RT_NONE);  in XIDestroyPointerBarrier()
854         swapl(&info->barrier);  in SProcXIBarrierReleasePointer()
866     struct PointerBarrierClient *barrier;  in ProcXIBarrierReleasePointer()  local
883         barrier_id = info->barrier;  in ProcXIBarrierReleasePointer()
903         barrier = container_of(b, struct PointerBarrierClient, barrier);  in ProcXIBarrierReleasePointer()
905         pbd = GetBarrierDevice(barrier, dev->id);  in ProcXIBarrierReleasePointer()