1 /**************************************************************************
5 * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
7 * Contact: Eunchul Kim <chulspro.kim@samsung.com>,
8 * JinYoung Jeon <jy0.jeon@samsung.com>,
9 * Taeheon Kim <th908.kim@samsung.com>,
10 * YoungJun Cho <yj44.cho@samsung.com>,
11 * SooChan Lim <sc1.lim@samsung.com>,
12 * Boram Park <sc1.lim@samsung.com>
14 * Permission is hereby granted, free of charge, to any person obtaining a
15 * copy of this software and associated documentation files (the
16 * "Software"), to deal in the Software without restriction, including
17 * without limitation the rights to use, copy, modify, merge, publish,
18 * distribute, sub license, and/or sell copies of the Software, and to
19 * permit persons to whom the Software is furnished to do so, subject to
20 * the following conditions:
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
27 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
29 * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
30 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
31 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
32 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
34 **************************************************************************/
40 #include "tdm_private.h"
43 * Basically tdm vblank doesn't care about thread things.
44 * However, to use tdm_event_loop_xxx functions, have to use the internal function.
45 * So need to lock/unlock the mutex of private_display. And valid_vblank_list and
46 * valid_wait_list should be protected by valid_list_lock because tdm_vblank can
47 * be used in multi-thread.
51 * - aligned by HW vblank
52 * - use a tdm_event_loop_source object only.
55 #define TDM_VBLANK_DEFAULT_VREFRESH 30
57 /* We expact "(unsigned int)(0.0016667 / 0.0016667) = 1". But it becomes 0. */
58 #define TDM_TIME_MARGIN 0.0000001
60 #define TDM_VBLANK_UINT_MAX 4294967295U
61 #define TDM_VBLANK_UINT_1Q 1073741823U /* UINT_MAX / 4 */
62 #define TDM_VBLANK_UINT_3Q 3221225471U /* UINT_MAX / 4 * 3 */
64 /* (seq < TDM_VBLANK_UINT_1Q && TDM_VBLANK_UINT_3Q < last_seq) means
65 * that the sequence value has reached the max value and started from 0 again.
67 #define TDM_VBLANK_SEQ_REACHED_MAX(seq, last_seq) \
68 ((seq) < TDM_VBLANK_UINT_1Q && TDM_VBLANK_UINT_3Q < (last_seq))
70 #define VER(fmt, arg...) TDM_ERR("[%p] "fmt, private_vblank, ##arg)
71 #define VWR(fmt, arg...) TDM_WRN("[%p] "fmt, private_vblank, ##arg)
72 #define VIN(fmt, arg...) do { if (tdm_debug_module & TDM_DEBUG_VBLANK) TDM_INFO("[%p] "fmt, private_vblank, ##arg); } while (0)
73 #define VDB(fmt, arg...) do { if (tdm_debug_module & TDM_DEBUG_VBLANK) TDM_DBG("[%p] "fmt, private_vblank, ##arg); } while (0)
80 } tdm_vblank_wait_type;
83 VBLANK_EVENT_TYPE_NONE,
86 } tdm_vblank_event_type;
88 typedef struct _tdm_vblank_wait_info tdm_vblank_wait_info;
90 typedef struct _tdm_private_vblank {
91 struct list_head valid_link;
98 tdm_output_conn_status connection;
99 unsigned int vrefresh;
101 tdm_vblank_event_type last_type;
102 unsigned int check_HW_or_SW;
103 char name[TDM_NAME_LEN];
105 unsigned int fps_changeable;
106 unsigned int fps_fixed;
108 unsigned int enable_fake;
109 unsigned int ignore_global_fps;
110 unsigned int in_create_handler;
113 unsigned int quotient;
116 unsigned int last_seq;
119 unsigned int add_front;
120 struct wl_resource *resource;
123 double HW_vblank_gap;
124 struct list_head HW_wait_list;
127 tdm_event_loop_source *SW_timer;
128 struct list_head SW_wait_list;
131 tdm_event_loop_source *timeout_timer;
132 } tdm_private_vblank;
134 struct _tdm_vblank_wait_info {
135 struct list_head link;
136 struct list_head valid_link;
141 unsigned int interval;
144 tdm_vblank_handler func;
146 tdm_private_vblank *private_vblank;
148 tdm_vblank_wait_type type;
151 unsigned int target_seq;
154 typedef struct _tdm_vblank_create_handler_info {
155 struct list_head link;
157 tdm_vblank_create_handler func;
159 } tdm_vblank_create_handler_info;
161 /* valid_vblank_list, valid_wait_list and create_handler_list should be protected
162 * by valid_list_lock because tdm_vblank can be used in multi-thread.
164 static pthread_mutex_t valid_list_lock = PTHREAD_MUTEX_INITIALIZER;
165 static struct list_head valid_vblank_list;
166 static struct list_head valid_wait_list;
167 static struct list_head create_handler_list;
168 static unsigned int vblank_list_inited;
169 static unsigned int vblank_global_fps;
170 static double stamp = 0;
172 static void _tdm_vblank_cb_vblank_SW(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data);
173 static tdm_error _tdm_vblank_cb_timeout_SW(void *user_data);
174 static tdm_error _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info);
175 static void _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
176 unsigned int tv_sec, unsigned int tv_usec,
178 static void _tdm_vblank_timeout_timer_update(tdm_private_vblank *private_vblank, int ms_delay);
179 static void _tdm_vblank_get_client_information(tdm_private_vblank *private_vblank,
180 pid_t *pid, const char **name);
184 _print_list(tdm_private_vblank *private_vblank)
186 tdm_vblank_wait_info *w = NULL;
189 LIST_FOR_EACH_ENTRY(w, &private_vblank->HW_wait_list, link) {
190 VIN("HW_wait(%p): type(%d) req_time(%.6f) target_time(%.6f) target_seq(%u)",
191 w, w->type, w->req_time, w->target_time, w->target_seq);
195 LIST_FOR_EACH_ENTRY(w, &private_vblank->SW_wait_list, link) {
196 VIN("SW_wait(%p): type(%d) req_time(%.6f) target_time(%.6f) target_seq(%u)",
197 w, w->type, w->req_time, w->target_time, w->target_seq);
207 tdm_vblank_is_valid(tdm_vblank *vblank)
209 tdm_private_vblank *v = NULL;
211 if (vblank && vblank_list_inited) {
212 pthread_mutex_lock(&valid_list_lock);
213 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
214 if (v == (tdm_private_vblank *)vblank) {
215 pthread_mutex_unlock(&valid_list_lock);
219 pthread_mutex_unlock(&valid_list_lock);
226 _tdm_vblank_valid_list_add(struct list_head *valid_link, struct list_head *valid_list)
228 pthread_mutex_lock(&valid_list_lock);
229 LIST_ADDTAIL(valid_link, valid_list);
230 pthread_mutex_unlock(&valid_list_lock);
234 _tdm_vblank_valid_list_del(struct list_head *valid_link)
236 pthread_mutex_lock(&valid_list_lock);
237 LIST_DEL(valid_link);
238 pthread_mutex_unlock(&valid_list_lock);
242 _tdm_vblank_find_object(tdm_private_display *private_display, double vblank_stamp)
244 tdm_private_vblank *v = NULL;
246 pthread_mutex_lock(&valid_list_lock);
247 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
248 if (v->stamp == vblank_stamp) {
249 pthread_mutex_unlock(&valid_list_lock);
253 pthread_mutex_unlock(&valid_list_lock);
258 static inline unsigned int
259 _tdm_vblank_check_valid_wait(tdm_vblank_wait_info *wait_info)
261 tdm_vblank_wait_info *w = NULL;
266 pthread_mutex_lock(&valid_list_lock);
267 LIST_FOR_EACH_ENTRY(w, &valid_wait_list, valid_link) {
268 if (w == wait_info) {
269 pthread_mutex_unlock(&valid_list_lock);
273 pthread_mutex_unlock(&valid_list_lock);
278 static inline unsigned int
279 _tdm_vblank_find_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
281 tdm_vblank_wait_info *w = NULL;
286 LIST_FOR_EACH_ENTRY(w, list, link) {
287 if (w->stamp == wait_info->stamp)
295 _tdm_vblank_insert_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
297 tdm_vblank_wait_info *w = NULL;
298 tdm_vblank_wait_info *found = NULL;
300 if (LIST_IS_EMPTY(list)) {
301 LIST_ADDTAIL(&wait_info->link, list);
305 LIST_FOR_EACH_ENTRY(w, list, link) {
306 if (wait_info->type == VBLANK_TYPE_SW) {
307 if (wait_info->target_time == 0)
308 TDM_NEVER_GET_HERE();
309 if (w->target_time <= wait_info->target_time) {
314 if (w->interval <= wait_info->interval) {
322 LIST_ADD(&wait_info->link, &found->link);
324 LIST_ADDTAIL(&wait_info->link, list->next);
328 _tdm_vblank_change_to_SW(tdm_private_vblank *private_vblank)
330 tdm_vblank_wait_info *w = NULL, *ww = NULL;
332 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
335 tdm_display_lock(private_vblank->dpy);
336 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, w);
337 tdm_display_unlock(private_vblank->dpy);
339 w->type = VBLANK_TYPE_SW_FAKE;
340 _tdm_vblank_wait_SW(w);
345 _tdm_vblank_free_HW_wait(tdm_private_vblank *private_vblank, tdm_error error, unsigned int call_cb)
347 tdm_vblank_wait_info *w = NULL, *ww = NULL;
349 if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list)) {
351 const char *proc_name;
352 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
353 VWR("TDM HW vblank destroyed forcely!! (pid: %u, name: %s)", pid, proc_name);
356 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
358 _tdm_vblank_valid_list_del(&w->valid_link);
360 tdm_display_lock(private_vblank->dpy);
361 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, w);
362 tdm_display_unlock(private_vblank->dpy);
364 VDB("wait(%p) last(%.6f) sequence(%u) done (error:%d, call_cb:%u)",
365 w, (double)0.0, w->target_seq, error, call_cb);
367 if (call_cb && w->func)
368 w->func(private_vblank, error, 0, 0, 0, w->user_data);
375 _tdm_vblank_update_output_info(tdm_private_vblank *private_vblank)
377 tdm_output *output = private_vblank->output;
378 tdm_output_conn_status connection = TDM_OUTPUT_CONN_STATUS_DISCONNECTED;
379 unsigned int vrefresh = TDM_VBLANK_DEFAULT_VREFRESH;
382 ret = tdm_output_get_conn_status(output, &connection);
383 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
385 if (connection == TDM_OUTPUT_CONN_STATUS_MODE_SETTED) {
386 const tdm_output_mode *mode = NULL;
387 tdm_output_get_mode(output, &mode);
389 vrefresh = mode->vrefresh;
391 VWR("mode not setted!!!");
394 private_vblank->connection = connection;
395 private_vblank->vrefresh = vrefresh;
396 private_vblank->HW_vblank_gap = 1.0 / private_vblank->vrefresh;
398 if (private_vblank->fps_changeable)
399 private_vblank->fps = vrefresh;
401 VIN("connection(%d) vrefresh(%d) fps(%d) fps_changeable(%d)",
402 private_vblank->connection,
403 private_vblank->vrefresh, private_vblank->fps, private_vblank->fps_changeable);
406 /* LCOV_EXCL_START */
408 _tdm_vblank_cb_output_change(tdm_output *output, tdm_output_change_type type,
409 tdm_value value, void *user_data)
411 tdm_private_vblank *private_vblank = user_data;
413 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
416 case TDM_OUTPUT_CHANGE_DPMS:
417 VIN("dpms %s", tdm_dpms_str(value.u32));
418 private_vblank->check_HW_or_SW = 1;
419 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(value.u32)) {
420 if (private_vblank->enable_fake)
421 _tdm_vblank_change_to_SW(private_vblank);
423 tdm_display_lock(private_vblank->dpy);
424 _tdm_vblank_timeout_timer_update(private_vblank, 0);
425 tdm_display_unlock(private_vblank->dpy);
427 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_DPMS_OFF, 1);
431 case TDM_OUTPUT_CHANGE_CONNECTION:
432 if (private_vblank->connection == value.u32)
434 VIN("output %s", tdm_status_str(value.u32));
435 _tdm_vblank_update_output_info(private_vblank);
436 private_vblank->check_HW_or_SW = 1;
437 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
438 if (private_vblank->enable_fake)
439 _tdm_vblank_change_to_SW(private_vblank);
441 tdm_display_lock(private_vblank->dpy);
442 _tdm_vblank_timeout_timer_update(private_vblank, 0);
443 tdm_display_unlock(private_vblank->dpy);
445 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_OUTPUT_DISCONNECTED, 1);
456 tdm_vblank_set_client_vblank_fps(unsigned int pid, const char *name, unsigned int fps)
458 tdm_private_vblank *v = NULL;
460 TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
461 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
463 TDM_INFO("pid: %u, name: %s, fps: %d", pid, name, fps);
465 pthread_mutex_lock(&valid_list_lock);
466 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
467 struct wl_client *client;
468 pid_t client_pid = 0;
473 client = wl_resource_get_client(v->resource);
477 wl_client_get_credentials(client, &client_pid, NULL, NULL);
479 if (client_pid != pid)
482 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
483 if (strncmp(v->name, name, TDM_NAME_LEN))
487 tdm_vblank_set_fps(v, fps);
489 TDM_INFO("(pid:%u) '%s' fps changed: %d", pid, v->name, fps);
491 pthread_mutex_unlock(&valid_list_lock);
493 return TDM_ERROR_NONE;
497 tdm_vblank_set_client_ignore_global_fps(unsigned int pid, const char *name, unsigned int ignore)
499 tdm_private_vblank *v = NULL;
501 TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
503 TDM_INFO("pid: %u, name: %s, ignore: %u", pid, name, ignore);
505 pthread_mutex_lock(&valid_list_lock);
506 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
507 struct wl_client *client;
508 pid_t client_pid = 0;
513 client = wl_resource_get_client(v->resource);
517 wl_client_get_credentials(client, &client_pid, NULL, NULL);
519 if (client_pid != pid)
522 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
523 if (strncmp(v->name, name, TDM_NAME_LEN))
527 tdm_vblank_ignore_global_fps(v, ignore);
529 TDM_INFO("(pid:%u) '%s' ignore changed: %u", pid, v->name, ignore);
531 pthread_mutex_unlock(&valid_list_lock);
533 return TDM_ERROR_NONE;
537 tdm_vblank_enable_global_fps(unsigned int enable, unsigned int fps)
539 tdm_private_vblank *v = NULL;
542 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
544 TDM_INFO("global fps: %s fps(%d)", (enable) ? "enabled" : "disabled", fps);
546 pthread_mutex_lock(&valid_list_lock);
548 vblank_global_fps = (enable) ? fps : 0;
550 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
551 /* skip if vblank is created in server side */
555 v->check_HW_or_SW = 1;
557 pthread_mutex_unlock(&valid_list_lock);
559 return TDM_ERROR_NONE;
563 _tdm_vblank_thread_cb_create(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data)
565 tdm_thread_cb_vblank_create *vblank_create = (tdm_thread_cb_vblank_create *)cb_base;
566 tdm_vblank_create_handler_info *ch_info = user_data;
567 tdm_private_vblank *private_vblank;
569 TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
571 assert(ch_info != NULL);
573 private_vblank = _tdm_vblank_find_object(private_display, vblank_create->vblank_stamp);
574 if (!private_vblank) {
575 TDM_DBG("can't find vblank(%.0f) from valid_list", vblank_create->vblank_stamp);
579 private_vblank->in_create_handler = 1;
580 tdm_display_unlock(private_display);
581 ch_info->func(private_vblank, ch_info->user_data);
582 tdm_display_lock(private_display);
583 private_vblank->in_create_handler = 0;
587 _tdm_vblank_call_thread_cb(tdm_private_vblank *private_vblank)
589 tdm_thread_cb_vblank_create vblank_create;
592 memset(&vblank_create, 0, sizeof vblank_create);
593 vblank_create.base.type = TDM_THREAD_CB_VBLANK_CREATE;
594 vblank_create.base.length = sizeof vblank_create;
595 vblank_create.base.object_stamp = 1;
596 vblank_create.base.data = NULL;
597 vblank_create.base.sync = 0;
598 vblank_create.vblank_stamp = private_vblank->stamp;
600 ret = tdm_thread_cb_call(private_vblank->dpy, &vblank_create.base);
601 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
603 return TDM_ERROR_NONE;
607 tdm_vblank_add_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
609 tdm_vblank_create_handler_info *ch_info = NULL;
612 TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
613 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
615 pthread_mutex_lock(&valid_list_lock);
617 LIST_FOR_EACH_ENTRY(ch_info, &create_handler_list, link) {
618 if (ch_info->func == func && ch_info->user_data == user_data) {
619 TDM_ERR("can't be added twice");
620 pthread_mutex_unlock(&valid_list_lock);
621 return TDM_ERROR_BAD_REQUEST;
625 ch_info = calloc(1, sizeof *ch_info);
627 TDM_ERR("alloc failed: %m");
628 pthread_mutex_unlock(&valid_list_lock);
629 return TDM_ERROR_OUT_OF_MEMORY;
632 tdm_display_lock(dpy);
633 ret = tdm_thread_cb_add(dpy, TDM_THREAD_CB_VBLANK_CREATE, NULL, _tdm_vblank_thread_cb_create, ch_info);
634 tdm_display_unlock(dpy);
636 if (ret != TDM_ERROR_NONE) {
637 TDM_ERR("tdm_thread_cb_add failed");
639 pthread_mutex_unlock(&valid_list_lock);
643 ch_info->func = func;
644 ch_info->user_data = user_data;
646 LIST_ADDTAIL(&ch_info->link, &create_handler_list);
648 pthread_mutex_unlock(&valid_list_lock);
650 return TDM_ERROR_NONE;
654 tdm_vblank_remove_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
656 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
658 TDM_RETURN_IF_FAIL(dpy != NULL);
659 TDM_RETURN_IF_FAIL(func != NULL);
661 tdm_display_lock(dpy);
662 pthread_mutex_lock(&valid_list_lock);
663 LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
664 if (ch_info->func != func || ch_info->user_data != user_data)
667 tdm_thread_cb_remove(dpy, TDM_THREAD_CB_VBLANK_CREATE, NULL, _tdm_vblank_thread_cb_create, ch_info);
669 LIST_DEL(&ch_info->link);
671 pthread_mutex_unlock(&valid_list_lock);
672 tdm_display_unlock(dpy);
675 pthread_mutex_unlock(&valid_list_lock);
676 tdm_display_unlock(dpy);
680 _tdm_vblank_find_display(tdm_private_display *private_display, double stamp)
682 return private_display;
686 tdm_vblank_init(tdm_display *dpy)
688 if (vblank_list_inited)
689 return TDM_ERROR_NONE;
691 LIST_INITHEAD(&valid_vblank_list);
692 LIST_INITHEAD(&valid_wait_list);
693 LIST_INITHEAD(&create_handler_list);
695 tdm_thread_cb_set_find_func(TDM_THREAD_CB_VBLANK_SW, _tdm_vblank_find_object);
696 tdm_thread_cb_set_find_func(TDM_THREAD_CB_VBLANK_CREATE, _tdm_vblank_find_display);
698 vblank_list_inited = 1;
700 return TDM_ERROR_NONE;
704 tdm_vblank_deinit(tdm_display *dpy)
706 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
708 if (!vblank_list_inited)
711 if (!LIST_IS_EMPTY(&valid_vblank_list))
712 TDM_NEVER_GET_HERE();
714 if (!LIST_IS_EMPTY(&valid_wait_list))
715 TDM_NEVER_GET_HERE();
717 LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
718 LIST_DEL(&ch_info->link);
722 vblank_list_inited = 0;
726 tdm_vblank_create(tdm_display *dpy, tdm_output *output, tdm_error *error)
728 tdm_private_vblank *private_vblank;
731 TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_display_is_valid(dpy), TDM_ERROR_INVALID_PARAMETER, NULL);
732 TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_output_is_valid(output), TDM_ERROR_INVALID_PARAMETER, NULL);
735 *error = TDM_ERROR_NONE;
737 private_vblank = calloc(1, sizeof * private_vblank);
738 if (!private_vblank) {
739 /* LCOV_EXCL_START */
741 *error = TDM_ERROR_OUT_OF_MEMORY;
742 TDM_ERR("alloc failed");
747 ret = tdm_output_add_change_handler(output, _tdm_vblank_cb_output_change, private_vblank);
748 if (ret != TDM_ERROR_NONE) {
749 free(private_vblank);
751 *error = TDM_ERROR_OPERATION_FAILED;
752 TDM_ERR("tdm_output_add_change_handler failed");
756 private_vblank->stamp = ++stamp;
757 private_vblank->owner_tid = syscall(SYS_gettid);
758 private_vblank->dpy = dpy;
759 private_vblank->output = output;
760 private_vblank->check_HW_or_SW = 1;
761 private_vblank->fps_changeable = 1;
762 private_vblank->last_interval = -1;
764 _tdm_vblank_update_output_info(private_vblank);
766 strncpy(private_vblank->name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN - 1);
767 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
769 LIST_INITHEAD(&private_vblank->HW_wait_list);
770 LIST_INITHEAD(&private_vblank->SW_wait_list);
772 _tdm_vblank_valid_list_add(&private_vblank->valid_link, &valid_vblank_list);
774 VIN("created. vrefresh(%d) connection(%d)",
775 private_vblank->vrefresh, private_vblank->connection);
777 tdm_display_lock(private_vblank->dpy);
778 _tdm_vblank_call_thread_cb(private_vblank);
779 tdm_display_unlock(private_vblank->dpy);
781 return (tdm_vblank *)private_vblank;
785 tdm_vblank_destroy(tdm_vblank *vblank)
787 tdm_private_vblank *private_vblank = vblank;
788 tdm_vblank_wait_info *w = NULL, *ww = NULL;
790 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(vblank));
792 if (private_vblank->in_create_handler) {
793 TDM_ERR("NOT allowed to be called in a create handler");
797 _tdm_vblank_valid_list_del(&private_vblank->valid_link);
799 if (private_vblank->SW_timer) {
800 tdm_display_lock(private_vblank->dpy);
801 tdm_thread_cb_remove(private_vblank, TDM_THREAD_CB_VBLANK_SW, NULL, _tdm_vblank_cb_vblank_SW, NULL);
802 tdm_event_loop_source_remove(private_vblank->SW_timer);
803 tdm_display_unlock(private_vblank->dpy);
806 tdm_output_remove_change_handler(private_vblank->output,
807 _tdm_vblank_cb_output_change, private_vblank);
809 _tdm_vblank_free_HW_wait(private_vblank, 0, 0);
811 if (!LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
813 const char *proc_name;
814 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
815 VER("TDM SW vblank destroyed forcely!! (pid: %u, name: %s)", pid, proc_name);
818 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
820 _tdm_vblank_valid_list_del(&w->valid_link);
824 if (private_vblank->timeout_timer) {
825 tdm_display_lock(private_vblank->dpy);
826 tdm_event_loop_source_remove(private_vblank->timeout_timer);
827 tdm_display_unlock(private_vblank->dpy);
832 free(private_vblank);
836 tdm_vblank_get_output(tdm_vblank *vblank, tdm_error *error)
838 tdm_private_vblank *private_vblank = vblank;
839 tdm_error ret = TDM_ERROR_NONE;
841 TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER, NULL);
844 *error = TDM_ERROR_NONE;
846 return private_vblank->output;
850 tdm_vblank_get_client_pid(tdm_vblank *vblank, pid_t *pid)
852 tdm_private_vblank *private_vblank = vblank;
853 struct wl_client *client;
855 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
856 TDM_RETURN_VAL_IF_FAIL(pid != NULL, TDM_ERROR_INVALID_PARAMETER);
858 if (!private_vblank->resource) {
860 return TDM_ERROR_NONE;
863 client = wl_resource_get_client(private_vblank->resource);
866 return TDM_ERROR_NONE;
869 wl_client_get_credentials(client, pid, NULL, NULL);
871 return TDM_ERROR_NONE;
875 tdm_vblank_set_name(tdm_vblank *vblank, const char *name)
877 tdm_private_vblank *private_vblank = vblank;
879 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
882 name = TDM_VBLANK_DEFAULT_NAME;
884 strncpy(private_vblank->name, name, TDM_NAME_LEN - 1);
885 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
887 VIN("name(%s)", name);
889 return TDM_ERROR_NONE;
893 tdm_vblank_get_name(tdm_vblank *vblank, const char **name)
895 tdm_private_vblank *private_vblank = vblank;
897 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
898 TDM_RETURN_VAL_IF_FAIL(name != NULL, TDM_ERROR_INVALID_PARAMETER);
900 *name = (const char*)private_vblank->name;
902 return TDM_ERROR_NONE;
906 tdm_vblank_set_fps(tdm_vblank *vblank, unsigned int fps)
908 tdm_private_vblank *private_vblank = vblank;
910 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
911 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
913 if (private_vblank->fps_fixed) {
914 VIN("fps(%u) can't be changed", private_vblank->fps);
915 return TDM_ERROR_NONE;
918 private_vblank->fps_changeable = 0;
920 if (private_vblank->fps == fps)
921 return TDM_ERROR_NONE;
923 private_vblank->fps = fps;
924 private_vblank->check_HW_or_SW = 1;
926 VIN("fps(%u) changed", fps);
928 return TDM_ERROR_NONE;
932 tdm_vblank_get_fps(tdm_vblank *vblank, unsigned int *fps)
934 tdm_private_vblank *private_vblank = vblank;
936 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
937 TDM_RETURN_VAL_IF_FAIL(fps != NULL, TDM_ERROR_INVALID_PARAMETER);
939 *fps = private_vblank->fps;
941 return TDM_ERROR_NONE;
945 tdm_vblank_set_fixed_fps(tdm_vblank *vblank, unsigned int fps)
947 tdm_private_vblank *private_vblank = vblank;
949 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
950 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
952 private_vblank->fps_changeable = 0;
953 private_vblank->fps_fixed = 1;
955 if (private_vblank->fps == fps)
956 return TDM_ERROR_NONE;
958 private_vblank->fps = fps;
959 private_vblank->check_HW_or_SW = 1;
961 VIN("fps(%u) fixed", fps);
963 return TDM_ERROR_NONE;
967 tdm_vblank_ignore_global_fps(tdm_vblank *vblank, unsigned int ignore)
969 tdm_private_vblank *private_vblank = vblank;
971 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
973 if (private_vblank->ignore_global_fps == ignore)
974 return TDM_ERROR_NONE;
976 private_vblank->ignore_global_fps = ignore;
977 private_vblank->check_HW_or_SW = 1;
979 VIN("ignore_global_fps(%u)", private_vblank->ignore_global_fps);
981 return TDM_ERROR_NONE;
985 tdm_vblank_set_offset(tdm_vblank *vblank, int offset)
987 tdm_private_vblank *private_vblank = vblank;
989 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
990 TDM_RETURN_VAL_IF_FAIL(offset >= 0, TDM_ERROR_INVALID_PARAMETER);
992 if (private_vblank->offset == offset)
993 return TDM_ERROR_NONE;
995 private_vblank->offset = offset;
996 private_vblank->check_HW_or_SW = 1;
998 VIN("offset(%u)", private_vblank->offset);
1000 return TDM_ERROR_NONE;
1004 tdm_vblank_get_offset(tdm_vblank *vblank, int *offset)
1006 tdm_private_vblank *private_vblank = vblank;
1008 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1009 TDM_RETURN_VAL_IF_FAIL(offset != NULL, TDM_ERROR_INVALID_PARAMETER);
1011 *offset = private_vblank->offset;
1013 return TDM_ERROR_NONE;
1017 tdm_vblank_set_enable_fake(tdm_vblank *vblank, unsigned int enable_fake)
1019 tdm_private_vblank *private_vblank = vblank;
1021 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1023 if (private_vblank->enable_fake == enable_fake)
1024 return TDM_ERROR_NONE;
1026 private_vblank->enable_fake = enable_fake;
1028 VIN("enable_fake(%u)", private_vblank->enable_fake);
1030 return TDM_ERROR_NONE;
1034 tdm_vblank_get_enable_fake(tdm_vblank *vblank, unsigned int *enable_fake)
1036 tdm_private_vblank *private_vblank = vblank;
1038 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1039 TDM_RETURN_VAL_IF_FAIL(enable_fake != NULL, TDM_ERROR_INVALID_PARAMETER);
1041 *enable_fake = private_vblank->enable_fake;
1043 return TDM_ERROR_NONE;
1047 _tdm_vblank_timeout_timer_cb(void *user_data)
1049 tdm_private_vblank *private_vblank = user_data;
1050 tdm_vblank_wait_info *w = NULL;
1052 const char *proc_name;
1054 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_OPERATION_FAILED);
1056 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
1058 VER("TDM vblank TIMEOUT!! (pid: %u, name: %s)", pid, proc_name);
1059 VER("quotient(%u) last_seq(%u) last_time(%.6f)", private_vblank->quotient, private_vblank->last_seq, private_vblank->last_time);
1061 LIST_FOR_EACH_ENTRY(w, &private_vblank->HW_wait_list, link) {
1062 VER("wait_info(%p) req_time(%.6f) target_seq(%u) interval(%u) hw_interval(%d)",
1063 w, w->req_time, w->target_seq, w->interval, w->hw_interval);
1064 tdm_output_vblank_print_wait_information(private_vblank->output, w);
1067 LIST_FOR_EACH_ENTRY(w, &private_vblank->SW_wait_list, link) {
1068 VER("wait_info(%p) req_time(%.6f) target_time(%.6f) target_seq(%u) interval(%u)",
1069 w, w->req_time, w->target_time, w->target_seq, w->interval);
1072 return TDM_ERROR_NONE;
1076 _tdm_vblank_timeout_timer_update(tdm_private_vblank *private_vblank, int ms_delay)
1080 if (!private_vblank->timeout_timer) {
1081 private_vblank->timeout_timer =
1082 tdm_event_loop_add_timer_handler(private_vblank->dpy,
1083 _tdm_vblank_timeout_timer_cb,
1086 if (!private_vblank->timeout_timer) {
1087 VER("couldn't add timer");
1090 VIN("Create Timeout timer");
1093 ret = tdm_event_loop_source_timer_update(private_vblank->timeout_timer, ms_delay);
1094 if (ret != TDM_ERROR_NONE) {
1095 VER("couldn't update timer");
1100 VDB("timeout timer updated");
1102 VDB("timeout timer disabled");
1106 _tdm_vblank_sw_timer_update(tdm_private_vblank *private_vblank)
1108 tdm_vblank_wait_info *first_wait_info = NULL;
1109 double curr, target;
1113 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1114 VER("no wait_info");
1115 return TDM_ERROR_OPERATION_FAILED;
1118 first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1119 curr = tdm_helper_get_time();
1120 target = first_wait_info->target_time;
1122 /* ms_delay should be more that 1 */
1126 ms_delay = ceil((target - curr) * 1000.0);
1131 if (ms_delay > 5000)
1132 VER("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1134 VDB("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1136 tdm_display_lock(private_vblank->dpy);
1138 if (!private_vblank->SW_timer) {
1139 private_vblank->SW_timer =
1140 tdm_event_loop_add_timer_handler(private_vblank->dpy,
1141 _tdm_vblank_cb_timeout_SW,
1144 if (!private_vblank->SW_timer) {
1145 tdm_display_unlock(private_vblank->dpy);
1146 VER("couldn't add timer");
1150 ret = tdm_thread_cb_add(private_vblank, TDM_THREAD_CB_VBLANK_SW, NULL, _tdm_vblank_cb_vblank_SW, NULL);
1151 if (ret != TDM_ERROR_NONE) {
1152 tdm_event_loop_source_remove(private_vblank->SW_timer);
1153 private_vblank->SW_timer = NULL;
1154 tdm_display_unlock(private_vblank->dpy);
1155 VER("couldn't add thread_cb");
1159 VIN("Create SW timer");
1162 private_vblank->last_interval = ms_delay;
1164 ret = tdm_event_loop_source_timer_update(private_vblank->SW_timer, ms_delay);
1165 if (ret != TDM_ERROR_NONE) {
1166 /* LCOV_EXCL_START */
1167 tdm_display_unlock(private_vblank->dpy);
1168 VER("couldn't update timer");
1170 /* LCOV_EXCL_STOP */
1173 tdm_display_unlock(private_vblank->dpy);
1175 return TDM_ERROR_NONE;
1179 _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
1180 unsigned int tv_sec, unsigned int tv_usec,
1183 tdm_vblank_wait_info *wait_info = user_data;
1184 tdm_private_vblank *private_vblank;
1186 if (!_tdm_vblank_check_valid_wait(wait_info)) {
1187 TDM_ERR("can't find wait(%p) from valid_wait_list", wait_info);
1191 private_vblank = wait_info->private_vblank;
1192 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
1194 assert(private_vblank->owner_tid == syscall(SYS_gettid));
1196 if (!_tdm_vblank_find_wait(wait_info, &private_vblank->HW_wait_list)) {
1197 VER("can't find wait(%p)", wait_info);
1201 if (wait_info->type == VBLANK_TYPE_HW_SW) {
1204 LIST_DEL(&wait_info->link);
1206 /* kernel sends the wrong time of first vblank event. and the time of
1207 * second vblank is correct.
1209 wait_info->target_time = TDM_TIME(tv_sec, tv_usec);
1210 wait_info->target_time += (((double)private_vblank->offset) / 1000.0);
1212 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1214 ret = _tdm_vblank_sw_timer_update(private_vblank);
1216 /* wait_info will be freed in _tdm_vblank_cb_timeout_SW() */
1217 if (ret == TDM_ERROR_NONE) {
1218 VIN("wait(%p) SW timer", wait_info);
1222 VER("couldn't update sw timer");
1225 tdm_display_lock(private_vblank->dpy);
1226 _tdm_vblank_timeout_timer_update(private_vblank, 0);
1227 tdm_display_unlock(private_vblank->dpy);
1229 LIST_DEL(&wait_info->link);
1230 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1232 /* tv_sec & tv_usec shouldn't be zero. But sometimes they are zero in some hardware.
1233 * We need to prohibit that last_time becomes zero because "last_time == 0" means
1234 * that a tdm_vblank object is just created and doesn't have the first vblank event.
1235 * If last_time becomes 0, it would make issue.
1237 if (tv_sec == 0 && tv_usec == 0) {
1238 double curr = tdm_helper_get_time();
1239 tv_sec = TDM_TIME_SEC(curr);
1240 tv_usec = TDM_TIME_USEC(curr);
1243 private_vblank->last_seq = wait_info->target_seq;
1244 private_vblank->last_time = TDM_TIME(tv_sec, tv_usec);
1246 VDB("wait(%p) last(%.6f) sequence(%u) done", wait_info, private_vblank->last_time, wait_info->target_seq);
1248 if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1249 TDM_TRACE_ASYNC_END((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1251 if (wait_info->func)
1252 wait_info->func(private_vblank, TDM_ERROR_NONE, wait_info->target_seq,
1253 tv_sec, tv_usec, wait_info->user_data);
1259 _tdm_vblank_wait_HW(tdm_vblank_wait_info *wait_info)
1261 tdm_private_vblank *private_vblank = wait_info->private_vblank;
1265 if (private_vblank->last_type != VBLANK_EVENT_TYPE_HW) {
1266 VIN("Use HW vblank");
1267 private_vblank->last_type = VBLANK_EVENT_TYPE_HW;
1270 _tdm_vblank_insert_wait(wait_info, &private_vblank->HW_wait_list);
1272 if (private_vblank->last_time == 0) {
1273 hw_interval = wait_info->interval * private_vblank->quotient;
1275 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1276 private_vblank->last_seq = 0;
1277 private_vblank->last_time = tdm_helper_get_time();
1279 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1280 wait_info->target_seq = 1;
1282 VDB("wait(%p) last(%.6f) hw_itvl(%d) targ_seq(%u)",
1283 wait_info, private_vblank->last_time, hw_interval, wait_info->target_seq);
1285 double last, prev, req, curr, target;
1288 last = private_vblank->last_time;
1289 req = wait_info->req_time;
1291 /* make sure that req time is bigger than last. */
1295 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1296 prev = last + private_vblank->vblank_gap * skip;
1298 curr = tdm_helper_get_time();
1300 while (target < curr)
1301 target += (private_vblank->vblank_gap * wait_info->interval);
1303 hw_interval = (unsigned int)((target - curr) / private_vblank->HW_vblank_gap + TDM_TIME_MARGIN) + 1;
1305 wait_info->target_seq = private_vblank->last_seq;
1306 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1308 if (hw_interval > 300)
1309 VER("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1310 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1311 skip, hw_interval, wait_info->target_seq);
1313 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1314 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1315 skip, hw_interval, wait_info->target_seq);
1318 private_vblank->last_interval = hw_interval;
1319 wait_info->hw_interval = hw_interval;
1321 if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1322 TDM_TRACE_ASYNC_BEGIN((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1324 if (private_vblank->add_front)
1325 ret = tdm_output_wait_vblank_add_front(private_vblank->output, hw_interval, 0,
1326 _tdm_vblank_cb_vblank_HW, wait_info);
1328 ret = tdm_output_wait_vblank(private_vblank->output, hw_interval, 0,
1329 _tdm_vblank_cb_vblank_HW, wait_info);
1331 if (ret != TDM_ERROR_NONE) {
1332 LIST_DEL(&wait_info->link);
1336 VDB("wait(%p) waiting", wait_info);
1338 return TDM_ERROR_NONE;
1342 _tdm_vblank_cb_vblank_SW(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data)
1344 tdm_private_vblank *private_vblank = object;
1345 tdm_vblank_wait_info *first_wait_info = NULL, *w = NULL, *ww = NULL;
1347 TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
1349 assert(private_vblank->owner_tid == syscall(SYS_gettid));
1351 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1352 VER("no wait_info");
1356 if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list))
1357 TDM_NEVER_GET_HERE();
1359 first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1360 TDM_RETURN_IF_FAIL(first_wait_info != NULL);
1362 _tdm_vblank_timeout_timer_update(private_vblank, 0);
1364 if (private_vblank->last_seq >= first_wait_info->target_seq)
1365 TDM_ERR("last_seq(%u) target_seq(%u)", private_vblank->last_seq, first_wait_info->target_seq);
1367 private_vblank->last_seq = first_wait_info->target_seq;
1368 private_vblank->last_time = first_wait_info->target_time;
1370 VDB("wait(%p) last(%.6f) sequence(%u) done", first_wait_info, private_vblank->last_time, first_wait_info->target_seq);
1372 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
1373 if (w->target_time != first_wait_info->target_time)
1377 _tdm_vblank_valid_list_del(&w->valid_link);
1380 tdm_display_unlock(private_vblank->dpy);
1381 w->func(private_vblank, TDM_ERROR_NONE, w->target_seq,
1382 TDM_TIME_SEC(w->target_time), TDM_TIME_USEC(w->target_time),
1384 tdm_display_lock(private_vblank->dpy);
1392 _tdm_vblank_cb_timeout_SW(void *user_data)
1394 tdm_private_vblank *private_vblank = user_data;
1395 tdm_thread_cb_vblank_sw vblank_sw;
1398 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(private_vblank), TDM_ERROR_OPERATION_FAILED);
1400 VIN("timeout_SW -> thread-cb");
1402 memset(&vblank_sw, 0, sizeof vblank_sw);
1403 vblank_sw.base.type = TDM_THREAD_CB_VBLANK_SW;
1404 vblank_sw.base.length = sizeof vblank_sw;
1405 vblank_sw.base.object_stamp = private_vblank->stamp;
1406 vblank_sw.base.data = NULL;
1407 vblank_sw.base.sync = 0;
1409 ret = tdm_thread_cb_call(private_vblank, &vblank_sw.base);
1410 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
1412 return TDM_ERROR_NONE;
1416 _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info)
1418 tdm_private_vblank *private_vblank = wait_info->private_vblank;
1421 if (private_vblank->last_type != VBLANK_EVENT_TYPE_SW) {
1422 VIN("Use SW vblank");
1423 private_vblank->last_type = VBLANK_EVENT_TYPE_SW;
1426 if (private_vblank->last_time == 0) {
1427 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1428 private_vblank->last_seq = 0;
1429 private_vblank->last_time = tdm_helper_get_time();
1431 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1432 wait_info->target_seq = 1;
1433 wait_info->target_time = private_vblank->last_time + 0.001;
1435 VDB("wait(%p) last(%.6f) target(%.6f) target sequence(%u)",
1436 wait_info, private_vblank->last_time, wait_info->target_time, wait_info->target_seq);
1438 double last, prev, req, curr, target;
1441 last = private_vblank->last_time;
1442 req = wait_info->req_time;
1444 /* make sure that req time is bigger than last. */
1448 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1449 prev = last + private_vblank->vblank_gap * skip;
1451 curr = tdm_helper_get_time();
1452 target = prev + private_vblank->vblank_gap * wait_info->interval;
1454 while (target < curr)
1455 target += private_vblank->vblank_gap;
1457 wait_info->target_seq = private_vblank->last_seq;
1458 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1460 wait_info->target_time = target;
1462 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) targ_seq(%u)",
1463 wait_info, last, req - last, prev - last, curr - last,
1464 target, target - last, skip, wait_info->target_seq);
1467 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1469 ret = _tdm_vblank_sw_timer_update(private_vblank);
1470 if (ret != TDM_ERROR_NONE) {
1471 /* LCOV_EXCL_START */
1472 LIST_DEL(&wait_info->link);
1473 VER("couldn't update sw timer");
1475 /* LCOV_EXCL_STOP */
1478 return TDM_ERROR_NONE;
1482 tdm_vblank_wait(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1483 unsigned int interval, tdm_vblank_handler func, void *user_data)
1485 tdm_private_vblank *private_vblank = vblank;
1486 tdm_vblank_wait_info *wait_info;
1487 tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1491 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1492 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1493 TDM_RETURN_VAL_IF_FAIL(interval > 0, TDM_ERROR_INVALID_PARAMETER);
1495 if (private_vblank->in_create_handler) {
1496 TDM_ERR("NOT allowed to be called in a create handler");
1497 return TDM_ERROR_BAD_REQUEST;
1500 if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1501 TDM_ERR("SHOULD be called in the owner thread(%d)", (int)private_vblank->owner_tid);
1502 return TDM_ERROR_BAD_REQUEST;
1505 tdm_output_get_dpms(private_vblank->output, &dpms);
1507 if (!private_vblank->enable_fake) {
1508 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
1509 VER("can't wait a vblank: output disconnected");
1510 return TDM_ERROR_OUTPUT_DISCONNECTED;
1512 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms)) {
1513 VER("can't wait a vblank: DPMS %s", tdm_dpms_str(dpms));
1514 return TDM_ERROR_DPMS_OFF;
1518 wait_info = calloc(1, sizeof * wait_info);
1520 /* LCOV_EXCL_START */
1521 VER("alloc failed");
1522 return TDM_ERROR_OUT_OF_MEMORY;
1523 /* LCOV_EXCL_STOP */
1525 _tdm_vblank_update_output_info(private_vblank);
1527 /* set request time to current time if 0. This function seems to be called in server side. */
1528 if (req_sec == 0 && req_usec == 0) {
1529 double curr = tdm_helper_get_time();
1530 req_sec = TDM_TIME_SEC(curr);
1531 req_usec = TDM_TIME_USEC(curr);
1534 LIST_INITHEAD(&wait_info->link);
1536 _tdm_vblank_valid_list_add(&wait_info->valid_link, &valid_wait_list);
1538 wait_info->stamp = ++stamp;
1539 wait_info->req_time = TDM_TIME(req_sec, req_usec);
1540 wait_info->interval = interval;
1541 wait_info->func = func;
1542 wait_info->user_data = user_data;
1543 wait_info->private_vblank = private_vblank;
1545 if (private_vblank->ignore_global_fps ||
1546 vblank_global_fps == 0 ||
1547 private_vblank->fps < vblank_global_fps)
1548 fps = private_vblank->fps;
1550 fps = vblank_global_fps;
1552 if (private_vblank->check_HW_or_SW) {
1553 private_vblank->check_HW_or_SW = 0;
1554 private_vblank->vblank_gap = 1.0 / fps;
1555 private_vblank->quotient = private_vblank->vrefresh / fps;
1558 /* 1) if fps != factor of vrefresh, SW timer
1559 * 2) if fps == factor of vrefresh && dpms == off, SW timer (Fake HW vblank)
1560 * 2) if fps == factor of vrefresh && dpms == on && offset == 0, HW vblank
1561 * 3) if fps == factor of vrefresh && dpms == on && offset != 0, HW vblank + SW timer
1562 * In case of 1), we really don't need to align with HW vblank.
1564 if (private_vblank->vrefresh % fps)
1565 wait_info->type = VBLANK_TYPE_SW;
1566 else if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms) ||
1567 private_vblank->connection != TDM_OUTPUT_CONN_STATUS_MODE_SETTED)
1568 wait_info->type = VBLANK_TYPE_SW_FAKE;
1569 else if (private_vblank->offset == 0)
1570 wait_info->type = VBLANK_TYPE_HW;
1572 wait_info->type = VBLANK_TYPE_HW_SW;
1574 if (wait_info->type == VBLANK_TYPE_SW || wait_info->type == VBLANK_TYPE_SW_FAKE) {
1575 ret = _tdm_vblank_wait_SW(wait_info);
1576 if (ret != TDM_ERROR_NONE)
1577 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1579 ret = _tdm_vblank_wait_HW(wait_info);
1580 if (ret != TDM_ERROR_NONE)
1581 TDM_ERR("_tdm_vblank_wait_HW failed: ret(%d)", ret);
1583 if (ret == TDM_ERROR_OUTPUT_DISCONNECTED || ret == TDM_ERROR_DPMS_OFF) {
1584 ret = _tdm_vblank_wait_SW(wait_info);
1585 if (ret != TDM_ERROR_NONE)
1586 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1590 if (ret != TDM_ERROR_NONE) {
1591 /* LCOV_EXCL_START */
1592 LIST_DEL(&wait_info->link);
1593 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1595 tdm_display_lock(private_vblank->dpy);
1596 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, wait_info);
1597 tdm_display_unlock(private_vblank->dpy);
1601 /* LCOV_EXCL_STOP */
1604 tdm_display_lock(private_vblank->dpy);
1605 _tdm_vblank_timeout_timer_update(private_vblank, 1000);
1606 tdm_display_unlock(private_vblank->dpy);
1608 return TDM_ERROR_NONE;
1612 tdm_vblank_wait_seq(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1613 unsigned int sequence, tdm_vblank_handler func, void *user_data)
1615 tdm_private_vblank *private_vblank = vblank;
1616 unsigned int interval;
1618 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1619 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1621 /* if the sequence of vblank reaches the max value, sequence can be 0. */
1623 if (private_vblank->last_seq == 0) {
1624 VWR("can't calculate interval with sequence(%u)", sequence);
1626 } else if (sequence > private_vblank->last_seq ||
1627 TDM_VBLANK_SEQ_REACHED_MAX(sequence, private_vblank->last_seq)) {
1628 double last, curr, seq_target;
1630 last = private_vblank->last_time;
1631 curr = tdm_helper_get_time();
1632 seq_target = last + private_vblank->vblank_gap * (sequence - private_vblank->last_seq);
1634 /* If target is old or too close(1ms) to current, we call the handler immediately.
1635 * 2ms? it seems too much.
1637 if (seq_target < curr) {
1638 func(vblank, TDM_ERROR_NONE, sequence,
1639 TDM_TIME_SEC(seq_target), TDM_TIME_USEC(seq_target),
1641 return TDM_ERROR_NONE;
1642 } else if ((seq_target - curr) < 0.001) { /* 1ms */
1643 func(vblank, TDM_ERROR_NONE, sequence,
1644 TDM_TIME_SEC(curr), TDM_TIME_USEC(curr),
1646 return TDM_ERROR_NONE;
1649 interval = (unsigned int)((seq_target - curr) / private_vblank->vblank_gap + TDM_TIME_MARGIN) + 1;
1651 /* this seems error. But we handle this like normal to avoid the unexpected error in cliend side */
1652 VER("sequence(%u) should be over the last sequence(%u)", sequence, private_vblank->last_seq);
1653 func(vblank, TDM_ERROR_NONE, private_vblank->last_seq,
1654 TDM_TIME_SEC(private_vblank->last_time), TDM_TIME_USEC(private_vblank->last_time),
1656 return TDM_ERROR_NONE;
1659 return tdm_vblank_wait(vblank, req_sec, req_usec, interval, func, user_data);
1662 /* LCOV_EXCL_START */
1664 tdm_vblank_set_add_front(tdm_vblank *vblank, unsigned int add_front)
1666 tdm_private_vblank *private_vblank = vblank;
1668 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1670 TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
1672 if (private_vblank->add_front == add_front)
1673 return TDM_ERROR_NONE;
1675 private_vblank->add_front = add_front;
1677 return TDM_ERROR_NONE;
1679 /* LCOV_EXCL_STOP */
1682 tdm_vblank_set_resource(tdm_vblank *vblank, struct wl_resource *resource)
1684 tdm_private_vblank *private_vblank = vblank;
1686 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1687 TDM_RETURN_VAL_IF_FAIL(private_vblank->resource == NULL, TDM_ERROR_OPERATION_FAILED);
1689 private_vblank->resource = resource;
1691 return TDM_ERROR_NONE;
1695 tdm_vblank_get_stamp(tdm_vblank *vblank)
1697 tdm_private_vblank *private_vblank = vblank;
1699 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1701 return private_vblank->stamp;
1705 _tdm_vblank_get_waiting_count(tdm_private_vblank *private_vblank)
1707 tdm_vblank_wait_info *wait_info = NULL;
1708 unsigned int count = 0;
1710 LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->HW_wait_list, link) {
1714 LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->SW_wait_list, link) {
1722 _tdm_vblank_get_client_information(tdm_private_vblank *private_vblank, pid_t *pid, const char **name)
1724 struct wl_client *client;
1726 if (!private_vblank->resource)
1729 client = wl_resource_get_client(private_vblank->resource);
1733 wl_client_get_credentials(client, pid, NULL, NULL);
1734 *name = tdm_server_get_client_name(*pid);
1744 /* LCOV_EXCL_START */
1746 tdm_vblank_get_vblank_list_information(tdm_display *dpy, char *reply, int *len)
1748 tdm_private_vblank *v = NULL;
1749 tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1750 tdm_output *output = tdm_display_get_output(dpy, 0, NULL);
1753 tdm_output_get_dpms(output, &dpms);
1755 TDM_SNPRINTF(reply, len, "[Client Vblank List]\n");
1756 TDM_SNPRINTF(reply, len, "* DPMS: %s\n", tdm_dpms_str(dpms));
1757 TDM_SNPRINTF(reply, len, "* global fps: %u\n", vblank_global_fps);
1758 TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1759 TDM_SNPRINTF(reply, len, "Name Type Wait Interval Sequence Fps Ignore Offset Fake Process\n");
1760 TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1762 pthread_mutex_lock(&valid_list_lock);
1763 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
1764 const char *proc_name = NULL;
1768 _tdm_vblank_get_client_information(v, &pid, &proc_name);
1770 count = _tdm_vblank_get_waiting_count(v);
1772 TDM_SNPRINTF(reply, len, "%-8s(%p) ", v->name, v);
1773 TDM_SNPRINTF(reply, len, "%-4s ", (v->last_type == VBLANK_EVENT_TYPE_HW) ? "HW" : "SW");
1774 TDM_SNPRINTF(reply, len, "%-4s ", (count > 0) ? "O" : " ");
1775 TDM_SNPRINTF(reply, len, "%-8d ", v->last_interval);
1776 TDM_SNPRINTF(reply, len, "%-8u ", v->last_seq);
1777 TDM_SNPRINTF(reply, len, "%-3u ", v->fps);
1778 TDM_SNPRINTF(reply, len, "%-6u ", v->ignore_global_fps);
1779 TDM_SNPRINTF(reply, len, "%-6d ", v->offset);
1780 TDM_SNPRINTF(reply, len, "%-4u ", v->enable_fake);
1781 TDM_SNPRINTF(reply, len, "%s(pid:%d)\n", (proc_name) ? proc_name : "Unknown", pid);
1783 pthread_mutex_unlock(&valid_list_lock);
1785 TDM_SNPRINTF(reply, len, "\n");
1787 /* LCOV_EXCL_STOP */