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 tdm_output_add_change_handler(output, _tdm_vblank_cb_output_change, private_vblank);
749 private_vblank->stamp = ++stamp;
750 private_vblank->owner_tid = syscall(SYS_gettid);
751 private_vblank->dpy = dpy;
752 private_vblank->output = output;
753 private_vblank->check_HW_or_SW = 1;
754 private_vblank->fps_changeable = 1;
755 private_vblank->last_interval = -1;
757 _tdm_vblank_update_output_info(private_vblank);
759 strncpy(private_vblank->name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN - 1);
760 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
762 LIST_INITHEAD(&private_vblank->HW_wait_list);
763 LIST_INITHEAD(&private_vblank->SW_wait_list);
765 _tdm_vblank_valid_list_add(&private_vblank->valid_link, &valid_vblank_list);
767 VIN("created. vrefresh(%d) connection(%d)",
768 private_vblank->vrefresh, private_vblank->connection);
770 tdm_display_lock(private_vblank->dpy);
771 _tdm_vblank_call_thread_cb(private_vblank);
772 tdm_display_unlock(private_vblank->dpy);
774 return (tdm_vblank *)private_vblank;
778 tdm_vblank_destroy(tdm_vblank *vblank)
780 tdm_private_vblank *private_vblank = vblank;
781 tdm_vblank_wait_info *w = NULL, *ww = NULL;
783 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(vblank));
785 if (private_vblank->in_create_handler) {
786 TDM_ERR("NOT allowed to be called in a create handler");
790 _tdm_vblank_valid_list_del(&private_vblank->valid_link);
792 if (private_vblank->SW_timer) {
793 tdm_display_lock(private_vblank->dpy);
794 tdm_thread_cb_remove(private_vblank, TDM_THREAD_CB_VBLANK_SW, NULL, _tdm_vblank_cb_vblank_SW, NULL);
795 tdm_event_loop_source_remove(private_vblank->SW_timer);
796 tdm_display_unlock(private_vblank->dpy);
799 tdm_output_remove_change_handler(private_vblank->output,
800 _tdm_vblank_cb_output_change, private_vblank);
802 _tdm_vblank_free_HW_wait(private_vblank, 0, 0);
804 if (!LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
806 const char *proc_name;
807 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
808 VER("TDM SW vblank destroyed forcely!! (pid: %u, name: %s)", pid, proc_name);
811 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
813 _tdm_vblank_valid_list_del(&w->valid_link);
817 if (private_vblank->timeout_timer) {
818 tdm_display_lock(private_vblank->dpy);
819 tdm_event_loop_source_remove(private_vblank->timeout_timer);
820 tdm_display_unlock(private_vblank->dpy);
825 free(private_vblank);
829 tdm_vblank_get_output(tdm_vblank *vblank, tdm_error *error)
831 tdm_private_vblank *private_vblank = vblank;
832 tdm_error ret = TDM_ERROR_NONE;
834 TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER, NULL);
837 *error = TDM_ERROR_NONE;
839 return private_vblank->output;
843 tdm_vblank_get_client_pid(tdm_vblank *vblank, pid_t *pid)
845 tdm_private_vblank *private_vblank = vblank;
846 struct wl_client *client;
848 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
849 TDM_RETURN_VAL_IF_FAIL(pid != NULL, TDM_ERROR_INVALID_PARAMETER);
851 if (!private_vblank->resource) {
853 return TDM_ERROR_NONE;
856 client = wl_resource_get_client(private_vblank->resource);
859 return TDM_ERROR_NONE;
862 wl_client_get_credentials(client, pid, NULL, NULL);
864 return TDM_ERROR_NONE;
868 tdm_vblank_set_name(tdm_vblank *vblank, const char *name)
870 tdm_private_vblank *private_vblank = vblank;
872 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
875 name = TDM_VBLANK_DEFAULT_NAME;
877 strncpy(private_vblank->name, name, TDM_NAME_LEN - 1);
878 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
880 VIN("name(%s)", name);
882 return TDM_ERROR_NONE;
886 tdm_vblank_get_name(tdm_vblank *vblank, const char **name)
888 tdm_private_vblank *private_vblank = vblank;
890 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
891 TDM_RETURN_VAL_IF_FAIL(name != NULL, TDM_ERROR_INVALID_PARAMETER);
893 *name = (const char*)private_vblank->name;
895 return TDM_ERROR_NONE;
899 tdm_vblank_set_fps(tdm_vblank *vblank, unsigned int fps)
901 tdm_private_vblank *private_vblank = vblank;
903 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
904 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
906 if (private_vblank->fps_fixed) {
907 VIN("fps(%u) can't be changed", private_vblank->fps);
908 return TDM_ERROR_NONE;
911 private_vblank->fps_changeable = 0;
913 if (private_vblank->fps == fps)
914 return TDM_ERROR_NONE;
916 private_vblank->fps = fps;
917 private_vblank->check_HW_or_SW = 1;
919 VIN("fps(%u) changed", fps);
921 return TDM_ERROR_NONE;
925 tdm_vblank_get_fps(tdm_vblank *vblank, unsigned int *fps)
927 tdm_private_vblank *private_vblank = vblank;
929 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
930 TDM_RETURN_VAL_IF_FAIL(fps != NULL, TDM_ERROR_INVALID_PARAMETER);
932 *fps = private_vblank->fps;
934 return TDM_ERROR_NONE;
938 tdm_vblank_set_fixed_fps(tdm_vblank *vblank, unsigned int fps)
940 tdm_private_vblank *private_vblank = vblank;
942 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
943 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
945 private_vblank->fps_changeable = 0;
946 private_vblank->fps_fixed = 1;
948 if (private_vblank->fps == fps)
949 return TDM_ERROR_NONE;
951 private_vblank->fps = fps;
952 private_vblank->check_HW_or_SW = 1;
954 VIN("fps(%u) fixed", fps);
956 return TDM_ERROR_NONE;
960 tdm_vblank_ignore_global_fps(tdm_vblank *vblank, unsigned int ignore)
962 tdm_private_vblank *private_vblank = vblank;
964 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
966 if (private_vblank->ignore_global_fps == ignore)
967 return TDM_ERROR_NONE;
969 private_vblank->ignore_global_fps = ignore;
970 private_vblank->check_HW_or_SW = 1;
972 VIN("ignore_global_fps(%u)", private_vblank->ignore_global_fps);
974 return TDM_ERROR_NONE;
978 tdm_vblank_set_offset(tdm_vblank *vblank, int offset)
980 tdm_private_vblank *private_vblank = vblank;
982 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
983 TDM_RETURN_VAL_IF_FAIL(offset >= 0, TDM_ERROR_INVALID_PARAMETER);
985 if (private_vblank->offset == offset)
986 return TDM_ERROR_NONE;
988 private_vblank->offset = offset;
989 private_vblank->check_HW_or_SW = 1;
991 VIN("offset(%u)", private_vblank->offset);
993 return TDM_ERROR_NONE;
997 tdm_vblank_get_offset(tdm_vblank *vblank, int *offset)
999 tdm_private_vblank *private_vblank = vblank;
1001 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1002 TDM_RETURN_VAL_IF_FAIL(offset != NULL, TDM_ERROR_INVALID_PARAMETER);
1004 *offset = private_vblank->offset;
1006 return TDM_ERROR_NONE;
1010 tdm_vblank_set_enable_fake(tdm_vblank *vblank, unsigned int enable_fake)
1012 tdm_private_vblank *private_vblank = vblank;
1014 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1016 if (private_vblank->enable_fake == enable_fake)
1017 return TDM_ERROR_NONE;
1019 private_vblank->enable_fake = enable_fake;
1021 VIN("enable_fake(%u)", private_vblank->enable_fake);
1023 return TDM_ERROR_NONE;
1027 tdm_vblank_get_enable_fake(tdm_vblank *vblank, unsigned int *enable_fake)
1029 tdm_private_vblank *private_vblank = vblank;
1031 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1032 TDM_RETURN_VAL_IF_FAIL(enable_fake != NULL, TDM_ERROR_INVALID_PARAMETER);
1034 *enable_fake = private_vblank->enable_fake;
1036 return TDM_ERROR_NONE;
1040 _tdm_vblank_timeout_timer_cb(void *user_data)
1042 tdm_private_vblank *private_vblank = user_data;
1043 tdm_vblank_wait_info *w = NULL;
1045 const char *proc_name;
1047 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_OPERATION_FAILED);
1049 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
1051 VER("TDM vblank TIMEOUT!! (pid: %u, name: %s)", pid, proc_name);
1052 VER("quotient(%u) last_seq(%u) last_time(%.6f)", private_vblank->quotient, private_vblank->last_seq, private_vblank->last_time);
1054 LIST_FOR_EACH_ENTRY(w, &private_vblank->HW_wait_list, link) {
1055 VER("wait_info(%p) req_time(%.6f) target_seq(%u) interval(%u) hw_interval(%d)",
1056 w, w->req_time, w->target_seq, w->interval, w->hw_interval);
1057 tdm_output_vblank_print_wait_information(private_vblank->output, w);
1060 LIST_FOR_EACH_ENTRY(w, &private_vblank->SW_wait_list, link) {
1061 VER("wait_info(%p) req_time(%.6f) target_time(%.6f) target_seq(%u) interval(%u)",
1062 w, w->req_time, w->target_time, w->target_seq, w->interval);
1065 return TDM_ERROR_NONE;
1069 _tdm_vblank_timeout_timer_update(tdm_private_vblank *private_vblank, int ms_delay)
1073 if (!private_vblank->timeout_timer) {
1074 private_vblank->timeout_timer =
1075 tdm_event_loop_add_timer_handler(private_vblank->dpy,
1076 _tdm_vblank_timeout_timer_cb,
1079 if (!private_vblank->timeout_timer) {
1080 VER("couldn't add timer");
1083 VIN("Create Timeout timer");
1086 ret = tdm_event_loop_source_timer_update(private_vblank->timeout_timer, ms_delay);
1087 if (ret != TDM_ERROR_NONE) {
1088 VER("couldn't update timer");
1093 VDB("timeout timer updated");
1095 VDB("timeout timer disabled");
1099 _tdm_vblank_sw_timer_update(tdm_private_vblank *private_vblank)
1101 tdm_vblank_wait_info *first_wait_info = NULL;
1102 double curr, target;
1106 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1107 VER("no wait_info");
1108 return TDM_ERROR_OPERATION_FAILED;
1111 first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1112 curr = tdm_helper_get_time();
1113 target = first_wait_info->target_time;
1115 /* ms_delay should be more that 1 */
1119 ms_delay = ceil((target - curr) * 1000.0);
1124 if (ms_delay > 5000)
1125 VER("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1127 VDB("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1129 tdm_display_lock(private_vblank->dpy);
1131 if (!private_vblank->SW_timer) {
1132 private_vblank->SW_timer =
1133 tdm_event_loop_add_timer_handler(private_vblank->dpy,
1134 _tdm_vblank_cb_timeout_SW,
1137 if (!private_vblank->SW_timer) {
1138 tdm_display_unlock(private_vblank->dpy);
1139 VER("couldn't add timer");
1143 ret = tdm_thread_cb_add(private_vblank, TDM_THREAD_CB_VBLANK_SW, NULL, _tdm_vblank_cb_vblank_SW, NULL);
1144 if (ret != TDM_ERROR_NONE) {
1145 tdm_event_loop_source_remove(private_vblank->SW_timer);
1146 private_vblank->SW_timer = NULL;
1147 tdm_display_unlock(private_vblank->dpy);
1148 VER("couldn't add thread_cb");
1152 VIN("Create SW timer");
1155 private_vblank->last_interval = ms_delay;
1157 ret = tdm_event_loop_source_timer_update(private_vblank->SW_timer, ms_delay);
1158 if (ret != TDM_ERROR_NONE) {
1159 /* LCOV_EXCL_START */
1160 tdm_display_unlock(private_vblank->dpy);
1161 VER("couldn't update timer");
1163 /* LCOV_EXCL_STOP */
1166 tdm_display_unlock(private_vblank->dpy);
1168 return TDM_ERROR_NONE;
1172 _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
1173 unsigned int tv_sec, unsigned int tv_usec,
1176 tdm_vblank_wait_info *wait_info = user_data;
1177 tdm_private_vblank *private_vblank;
1179 if (!_tdm_vblank_check_valid_wait(wait_info)) {
1180 TDM_ERR("can't find wait(%p) from valid_wait_list", wait_info);
1184 private_vblank = wait_info->private_vblank;
1185 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
1187 assert(private_vblank->owner_tid == syscall(SYS_gettid));
1189 if (!_tdm_vblank_find_wait(wait_info, &private_vblank->HW_wait_list)) {
1190 VER("can't find wait(%p)", wait_info);
1194 if (wait_info->type == VBLANK_TYPE_HW_SW) {
1197 LIST_DEL(&wait_info->link);
1199 /* kernel sends the wrong time of first vblank event. and the time of
1200 * second vblank is correct.
1202 wait_info->target_time = TDM_TIME(tv_sec, tv_usec);
1203 wait_info->target_time += (((double)private_vblank->offset) / 1000.0);
1205 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1207 ret = _tdm_vblank_sw_timer_update(private_vblank);
1209 /* wait_info will be freed in _tdm_vblank_cb_timeout_SW() */
1210 if (ret == TDM_ERROR_NONE) {
1211 VIN("wait(%p) SW timer", wait_info);
1215 VER("couldn't update sw timer");
1218 tdm_display_lock(private_vblank->dpy);
1219 _tdm_vblank_timeout_timer_update(private_vblank, 0);
1220 tdm_display_unlock(private_vblank->dpy);
1222 LIST_DEL(&wait_info->link);
1223 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1225 /* tv_sec & tv_usec shouldn't be zero. But sometimes they are zero in some hardware.
1226 * We need to prohibit that last_time becomes zero because "last_time == 0" means
1227 * that a tdm_vblank object is just created and doesn't have the first vblank event.
1228 * If last_time becomes 0, it would make issue.
1230 if (tv_sec == 0 && tv_usec == 0) {
1231 double curr = tdm_helper_get_time();
1232 tv_sec = TDM_TIME_SEC(curr);
1233 tv_usec = TDM_TIME_USEC(curr);
1236 private_vblank->last_seq = wait_info->target_seq;
1237 private_vblank->last_time = TDM_TIME(tv_sec, tv_usec);
1239 VDB("wait(%p) last(%.6f) sequence(%u) done", wait_info, private_vblank->last_time, wait_info->target_seq);
1241 if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1242 TDM_TRACE_ASYNC_END((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1244 if (wait_info->func)
1245 wait_info->func(private_vblank, TDM_ERROR_NONE, wait_info->target_seq,
1246 tv_sec, tv_usec, wait_info->user_data);
1252 _tdm_vblank_wait_HW(tdm_vblank_wait_info *wait_info)
1254 tdm_private_vblank *private_vblank = wait_info->private_vblank;
1258 if (private_vblank->last_type != VBLANK_EVENT_TYPE_HW) {
1259 VIN("Use HW vblank");
1260 private_vblank->last_type = VBLANK_EVENT_TYPE_HW;
1263 _tdm_vblank_insert_wait(wait_info, &private_vblank->HW_wait_list);
1265 if (private_vblank->last_time == 0) {
1266 hw_interval = wait_info->interval * private_vblank->quotient;
1268 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1269 private_vblank->last_seq = 0;
1270 private_vblank->last_time = tdm_helper_get_time();
1272 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1273 wait_info->target_seq = 1;
1275 VDB("wait(%p) last(%.6f) hw_itvl(%d) targ_seq(%u)",
1276 wait_info, private_vblank->last_time, hw_interval, wait_info->target_seq);
1278 double last, prev, req, curr, target;
1281 last = private_vblank->last_time;
1282 req = wait_info->req_time;
1284 /* make sure that req time is bigger than last. */
1288 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1289 prev = last + private_vblank->vblank_gap * skip;
1291 curr = tdm_helper_get_time();
1293 while (target < curr)
1294 target += (private_vblank->vblank_gap * wait_info->interval);
1296 hw_interval = (unsigned int)((target - curr) / private_vblank->HW_vblank_gap + TDM_TIME_MARGIN) + 1;
1298 wait_info->target_seq = private_vblank->last_seq;
1299 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1301 if (hw_interval > 300)
1302 VER("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1303 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1304 skip, hw_interval, wait_info->target_seq);
1306 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1307 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1308 skip, hw_interval, wait_info->target_seq);
1311 private_vblank->last_interval = hw_interval;
1312 wait_info->hw_interval = hw_interval;
1314 if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1315 TDM_TRACE_ASYNC_BEGIN((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1317 if (private_vblank->add_front)
1318 ret = tdm_output_wait_vblank_add_front(private_vblank->output, hw_interval, 0,
1319 _tdm_vblank_cb_vblank_HW, wait_info);
1321 ret = tdm_output_wait_vblank(private_vblank->output, hw_interval, 0,
1322 _tdm_vblank_cb_vblank_HW, wait_info);
1324 if (ret != TDM_ERROR_NONE) {
1325 LIST_DEL(&wait_info->link);
1329 VDB("wait(%p) waiting", wait_info);
1331 return TDM_ERROR_NONE;
1335 _tdm_vblank_cb_vblank_SW(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data)
1337 tdm_private_vblank *private_vblank = object;
1338 tdm_vblank_wait_info *first_wait_info = NULL, *w = NULL, *ww = NULL;
1340 TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
1342 assert(private_vblank->owner_tid == syscall(SYS_gettid));
1344 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1345 VER("no wait_info");
1349 if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list))
1350 TDM_NEVER_GET_HERE();
1352 first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1353 TDM_RETURN_IF_FAIL(first_wait_info != NULL);
1355 _tdm_vblank_timeout_timer_update(private_vblank, 0);
1357 if (private_vblank->last_seq >= first_wait_info->target_seq)
1358 TDM_ERR("last_seq(%u) target_seq(%u)", private_vblank->last_seq, first_wait_info->target_seq);
1360 private_vblank->last_seq = first_wait_info->target_seq;
1361 private_vblank->last_time = first_wait_info->target_time;
1363 VDB("wait(%p) last(%.6f) sequence(%u) done", first_wait_info, private_vblank->last_time, first_wait_info->target_seq);
1365 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
1366 if (w->target_time != first_wait_info->target_time)
1370 _tdm_vblank_valid_list_del(&w->valid_link);
1373 tdm_display_unlock(private_vblank->dpy);
1374 w->func(private_vblank, TDM_ERROR_NONE, w->target_seq,
1375 TDM_TIME_SEC(w->target_time), TDM_TIME_USEC(w->target_time),
1377 tdm_display_lock(private_vblank->dpy);
1385 _tdm_vblank_cb_timeout_SW(void *user_data)
1387 tdm_private_vblank *private_vblank = user_data;
1388 tdm_thread_cb_vblank_sw vblank_sw;
1391 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(private_vblank), TDM_ERROR_OPERATION_FAILED);
1393 VIN("timeout_SW -> thread-cb");
1395 memset(&vblank_sw, 0, sizeof vblank_sw);
1396 vblank_sw.base.type = TDM_THREAD_CB_VBLANK_SW;
1397 vblank_sw.base.length = sizeof vblank_sw;
1398 vblank_sw.base.object_stamp = private_vblank->stamp;
1399 vblank_sw.base.data = NULL;
1400 vblank_sw.base.sync = 0;
1402 ret = tdm_thread_cb_call(private_vblank, &vblank_sw.base);
1403 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
1405 return TDM_ERROR_NONE;
1409 _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info)
1411 tdm_private_vblank *private_vblank = wait_info->private_vblank;
1414 if (private_vblank->last_type != VBLANK_EVENT_TYPE_SW) {
1415 VIN("Use SW vblank");
1416 private_vblank->last_type = VBLANK_EVENT_TYPE_SW;
1419 if (private_vblank->last_time == 0) {
1420 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1421 private_vblank->last_seq = 0;
1422 private_vblank->last_time = tdm_helper_get_time();
1424 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1425 wait_info->target_seq = 1;
1426 wait_info->target_time = private_vblank->last_time + 0.001;
1428 VDB("wait(%p) last(%.6f) target(%.6f) target sequence(%u)",
1429 wait_info, private_vblank->last_time, wait_info->target_time, wait_info->target_seq);
1431 double last, prev, req, curr, target;
1434 last = private_vblank->last_time;
1435 req = wait_info->req_time;
1437 /* make sure that req time is bigger than last. */
1441 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1442 prev = last + private_vblank->vblank_gap * skip;
1444 curr = tdm_helper_get_time();
1445 target = prev + private_vblank->vblank_gap * wait_info->interval;
1447 while (target < curr)
1448 target += private_vblank->vblank_gap;
1450 wait_info->target_seq = private_vblank->last_seq;
1451 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1453 wait_info->target_time = target;
1455 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) targ_seq(%u)",
1456 wait_info, last, req - last, prev - last, curr - last,
1457 target, target - last, skip, wait_info->target_seq);
1460 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1462 ret = _tdm_vblank_sw_timer_update(private_vblank);
1463 if (ret != TDM_ERROR_NONE) {
1464 /* LCOV_EXCL_START */
1465 LIST_DEL(&wait_info->link);
1466 VER("couldn't update sw timer");
1468 /* LCOV_EXCL_STOP */
1471 return TDM_ERROR_NONE;
1475 tdm_vblank_wait(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1476 unsigned int interval, tdm_vblank_handler func, void *user_data)
1478 tdm_private_vblank *private_vblank = vblank;
1479 tdm_vblank_wait_info *wait_info;
1480 tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1484 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1485 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1486 TDM_RETURN_VAL_IF_FAIL(interval > 0, TDM_ERROR_INVALID_PARAMETER);
1488 if (private_vblank->in_create_handler) {
1489 TDM_ERR("NOT allowed to be called in a create handler");
1490 return TDM_ERROR_BAD_REQUEST;
1493 if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1494 TDM_ERR("SHOULD be called in the owner thread(%d)", (int)private_vblank->owner_tid);
1495 return TDM_ERROR_BAD_REQUEST;
1498 tdm_output_get_dpms(private_vblank->output, &dpms);
1500 if (!private_vblank->enable_fake) {
1501 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
1502 VER("can't wait a vblank: output disconnected");
1503 return TDM_ERROR_OUTPUT_DISCONNECTED;
1505 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms)) {
1506 VER("can't wait a vblank: DPMS %s", tdm_dpms_str(dpms));
1507 return TDM_ERROR_DPMS_OFF;
1511 wait_info = calloc(1, sizeof * wait_info);
1513 /* LCOV_EXCL_START */
1514 VER("alloc failed");
1515 return TDM_ERROR_OUT_OF_MEMORY;
1516 /* LCOV_EXCL_STOP */
1518 _tdm_vblank_update_output_info(private_vblank);
1520 /* set request time to current time if 0. This function seems to be called in server side. */
1521 if (req_sec == 0 && req_usec == 0) {
1522 double curr = tdm_helper_get_time();
1523 req_sec = TDM_TIME_SEC(curr);
1524 req_usec = TDM_TIME_USEC(curr);
1527 LIST_INITHEAD(&wait_info->link);
1529 _tdm_vblank_valid_list_add(&wait_info->valid_link, &valid_wait_list);
1531 wait_info->stamp = ++stamp;
1532 wait_info->req_time = TDM_TIME(req_sec, req_usec);
1533 wait_info->interval = interval;
1534 wait_info->func = func;
1535 wait_info->user_data = user_data;
1536 wait_info->private_vblank = private_vblank;
1538 if (private_vblank->ignore_global_fps ||
1539 vblank_global_fps == 0 ||
1540 private_vblank->fps < vblank_global_fps)
1541 fps = private_vblank->fps;
1543 fps = vblank_global_fps;
1545 if (private_vblank->check_HW_or_SW) {
1546 private_vblank->check_HW_or_SW = 0;
1547 private_vblank->vblank_gap = 1.0 / fps;
1548 private_vblank->quotient = private_vblank->vrefresh / fps;
1551 /* 1) if fps != factor of vrefresh, SW timer
1552 * 2) if fps == factor of vrefresh && dpms == off, SW timer (Fake HW vblank)
1553 * 2) if fps == factor of vrefresh && dpms == on && offset == 0, HW vblank
1554 * 3) if fps == factor of vrefresh && dpms == on && offset != 0, HW vblank + SW timer
1555 * In case of 1), we really don't need to align with HW vblank.
1557 if (private_vblank->vrefresh % fps)
1558 wait_info->type = VBLANK_TYPE_SW;
1559 else if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms) ||
1560 private_vblank->connection != TDM_OUTPUT_CONN_STATUS_MODE_SETTED)
1561 wait_info->type = VBLANK_TYPE_SW_FAKE;
1562 else if (private_vblank->offset == 0)
1563 wait_info->type = VBLANK_TYPE_HW;
1565 wait_info->type = VBLANK_TYPE_HW_SW;
1567 if (wait_info->type == VBLANK_TYPE_SW || wait_info->type == VBLANK_TYPE_SW_FAKE) {
1568 ret = _tdm_vblank_wait_SW(wait_info);
1569 if (ret != TDM_ERROR_NONE)
1570 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1572 ret = _tdm_vblank_wait_HW(wait_info);
1573 if (ret != TDM_ERROR_NONE)
1574 TDM_ERR("_tdm_vblank_wait_HW failed: ret(%d)", ret);
1576 if (ret == TDM_ERROR_OUTPUT_DISCONNECTED || ret == TDM_ERROR_DPMS_OFF) {
1577 ret = _tdm_vblank_wait_SW(wait_info);
1578 if (ret != TDM_ERROR_NONE)
1579 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1583 if (ret != TDM_ERROR_NONE) {
1584 /* LCOV_EXCL_START */
1585 LIST_DEL(&wait_info->link);
1586 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1588 tdm_display_lock(private_vblank->dpy);
1589 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, wait_info);
1590 tdm_display_unlock(private_vblank->dpy);
1594 /* LCOV_EXCL_STOP */
1597 tdm_display_lock(private_vblank->dpy);
1598 _tdm_vblank_timeout_timer_update(private_vblank, 1000);
1599 tdm_display_unlock(private_vblank->dpy);
1601 return TDM_ERROR_NONE;
1605 tdm_vblank_wait_seq(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1606 unsigned int sequence, tdm_vblank_handler func, void *user_data)
1608 tdm_private_vblank *private_vblank = vblank;
1609 unsigned int interval;
1611 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1612 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1614 /* if the sequence of vblank reaches the max value, sequence can be 0. */
1616 if (private_vblank->last_seq == 0) {
1617 VWR("can't calculate interval with sequence(%u)", sequence);
1619 } else if (sequence > private_vblank->last_seq ||
1620 TDM_VBLANK_SEQ_REACHED_MAX(sequence, private_vblank->last_seq)) {
1621 double last, curr, seq_target;
1623 last = private_vblank->last_time;
1624 curr = tdm_helper_get_time();
1625 seq_target = last + private_vblank->vblank_gap * (sequence - private_vblank->last_seq);
1627 /* If target is old or too close(1ms) to current, we call the handler immediately.
1628 * 2ms? it seems too much.
1630 if (seq_target < curr) {
1631 func(vblank, TDM_ERROR_NONE, sequence,
1632 TDM_TIME_SEC(seq_target), TDM_TIME_USEC(seq_target),
1634 return TDM_ERROR_NONE;
1635 } else if ((seq_target - curr) < 0.001) { /* 1ms */
1636 func(vblank, TDM_ERROR_NONE, sequence,
1637 TDM_TIME_SEC(curr), TDM_TIME_USEC(curr),
1639 return TDM_ERROR_NONE;
1642 interval = (unsigned int)((seq_target - curr) / private_vblank->vblank_gap + TDM_TIME_MARGIN) + 1;
1644 /* this seems error. But we handle this like normal to avoid the unexpected error in cliend side */
1645 VER("sequence(%u) should be over the last sequence(%u)", sequence, private_vblank->last_seq);
1646 func(vblank, TDM_ERROR_NONE, private_vblank->last_seq,
1647 TDM_TIME_SEC(private_vblank->last_time), TDM_TIME_USEC(private_vblank->last_time),
1649 return TDM_ERROR_NONE;
1652 return tdm_vblank_wait(vblank, req_sec, req_usec, interval, func, user_data);
1655 /* LCOV_EXCL_START */
1657 tdm_vblank_set_add_front(tdm_vblank *vblank, unsigned int add_front)
1659 tdm_private_vblank *private_vblank = vblank;
1661 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1663 TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
1665 if (private_vblank->add_front == add_front)
1666 return TDM_ERROR_NONE;
1668 private_vblank->add_front = add_front;
1670 return TDM_ERROR_NONE;
1672 /* LCOV_EXCL_STOP */
1675 tdm_vblank_set_resource(tdm_vblank *vblank, struct wl_resource *resource)
1677 tdm_private_vblank *private_vblank = vblank;
1679 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1680 TDM_RETURN_VAL_IF_FAIL(private_vblank->resource == NULL, TDM_ERROR_OPERATION_FAILED);
1682 private_vblank->resource = resource;
1684 return TDM_ERROR_NONE;
1688 tdm_vblank_get_stamp(tdm_vblank *vblank)
1690 tdm_private_vblank *private_vblank = vblank;
1692 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1694 return private_vblank->stamp;
1698 _tdm_vblank_get_waiting_count(tdm_private_vblank *private_vblank)
1700 tdm_vblank_wait_info *wait_info = NULL;
1701 unsigned int count = 0;
1703 LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->HW_wait_list, link) {
1707 LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->SW_wait_list, link) {
1715 _tdm_vblank_get_client_information(tdm_private_vblank *private_vblank, pid_t *pid, const char **name)
1717 struct wl_client *client;
1719 if (!private_vblank->resource)
1722 client = wl_resource_get_client(private_vblank->resource);
1726 wl_client_get_credentials(client, pid, NULL, NULL);
1727 *name = tdm_server_get_client_name(*pid);
1737 /* LCOV_EXCL_START */
1739 tdm_vblank_get_vblank_list_information(tdm_display *dpy, char *reply, int *len)
1741 tdm_private_vblank *v = NULL;
1742 tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1743 tdm_output *output = tdm_display_get_output(dpy, 0, NULL);
1746 tdm_output_get_dpms(output, &dpms);
1748 TDM_SNPRINTF(reply, len, "[Client Vblank List]\n");
1749 TDM_SNPRINTF(reply, len, "* DPMS: %s\n", tdm_dpms_str(dpms));
1750 TDM_SNPRINTF(reply, len, "* global fps: %u\n", vblank_global_fps);
1751 TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1752 TDM_SNPRINTF(reply, len, "Name Type Wait Interval Sequence Fps Ignore Offset Fake Process\n");
1753 TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1755 pthread_mutex_lock(&valid_list_lock);
1756 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
1757 const char *proc_name = NULL;
1761 _tdm_vblank_get_client_information(v, &pid, &proc_name);
1763 count = _tdm_vblank_get_waiting_count(v);
1765 TDM_SNPRINTF(reply, len, "%-8s(%p) ", v->name, v);
1766 TDM_SNPRINTF(reply, len, "%-4s ", (v->last_type == VBLANK_EVENT_TYPE_HW) ? "HW" : "SW");
1767 TDM_SNPRINTF(reply, len, "%-4s ", (count > 0) ? "O" : " ");
1768 TDM_SNPRINTF(reply, len, "%-8d ", v->last_interval);
1769 TDM_SNPRINTF(reply, len, "%-8u ", v->last_seq);
1770 TDM_SNPRINTF(reply, len, "%-3u ", v->fps);
1771 TDM_SNPRINTF(reply, len, "%-6u ", v->ignore_global_fps);
1772 TDM_SNPRINTF(reply, len, "%-6d ", v->offset);
1773 TDM_SNPRINTF(reply, len, "%-4u ", v->enable_fake);
1774 TDM_SNPRINTF(reply, len, "%s(pid:%d)\n", (proc_name) ? proc_name : "Unknown", pid);
1776 pthread_mutex_unlock(&valid_list_lock);
1778 TDM_SNPRINTF(reply, len, "\n");
1780 /* LCOV_EXCL_STOP */