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 and valid_wait_list should be protected by valid_list_lock because
162 * tdm_vblank can be used in multi-thread.
164 static pthread_mutex_t valid_list_lock;
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 /* use in_create_handler instead of mutext unlock/lock */
580 private_vblank->in_create_handler = 1;
581 ch_info->func(private_vblank, ch_info->user_data);
582 private_vblank->in_create_handler = 0;
586 _tdm_vblank_call_thread_cb(tdm_private_vblank *private_vblank)
588 tdm_thread_cb_vblank_create vblank_create;
591 memset(&vblank_create, 0, sizeof vblank_create);
592 vblank_create.base.type = TDM_THREAD_CB_VBLANK_CREATE;
593 vblank_create.base.length = sizeof vblank_create;
594 vblank_create.base.object_stamp = 1;
595 vblank_create.base.data = NULL;
596 vblank_create.base.sync = 0;
597 vblank_create.vblank_stamp = private_vblank->stamp;
599 ret = tdm_thread_cb_call(private_vblank->dpy, &vblank_create.base);
600 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
602 return TDM_ERROR_NONE;
606 tdm_vblank_add_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
608 tdm_vblank_create_handler_info *ch_info = NULL;
611 TDM_RETURN_VAL_IF_FAIL(!TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
612 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
614 LIST_FOR_EACH_ENTRY(ch_info, &create_handler_list, link) {
615 if (ch_info->func == func && ch_info->user_data == user_data) {
616 TDM_ERR("can't be added twice");
617 return TDM_ERROR_BAD_REQUEST;
621 ch_info = calloc(1, sizeof *ch_info);
622 TDM_RETURN_VAL_IF_FAIL(ch_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
624 tdm_display_lock(dpy);
625 ret = tdm_thread_cb_add(dpy, TDM_THREAD_CB_VBLANK_CREATE, NULL, _tdm_vblank_thread_cb_create, ch_info);
626 tdm_display_unlock(dpy);
628 if (ret != TDM_ERROR_NONE) {
629 TDM_ERR("tdm_thread_cb_add failed");
634 ch_info->func = func;
635 ch_info->user_data = user_data;
637 LIST_ADDTAIL(&ch_info->link, &create_handler_list);
638 return TDM_ERROR_NONE;
642 tdm_vblank_remove_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
644 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
646 TDM_RETURN_IF_FAIL(!TDM_MUTEX_IS_LOCKED());
648 /* we don't allow adding a create handler in sub-thread because tdm_vblank_create()
649 * can be called in both threads and tdm_thread_send_cb supports only one-way
652 if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
653 TDM_ERR("remove_create_handler should be called in main thread");
657 tdm_display_lock(dpy);
659 LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
660 if (ch_info->func != func && ch_info->user_data != user_data)
663 tdm_thread_cb_remove(dpy, TDM_THREAD_CB_VBLANK_CREATE, NULL, _tdm_vblank_thread_cb_create, ch_info);
665 LIST_DEL(&ch_info->link);
667 tdm_display_unlock(dpy);
671 tdm_display_unlock(dpy);
675 _tdm_vblank_find_display(tdm_private_display *private_display, double stamp)
677 return private_display;
681 tdm_vblank_init(tdm_display *dpy)
683 if (vblank_list_inited)
684 return TDM_ERROR_NONE;
686 if (pthread_mutex_init(&valid_list_lock, NULL)) {
687 TDM_ERR("mutex init failed: %m");
688 return TDM_ERROR_OUT_OF_MEMORY;
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 pthread_mutex_destroy(&valid_list_lock);
724 vblank_list_inited = 0;
728 tdm_vblank_create(tdm_display *dpy, tdm_output *output, tdm_error *error)
730 tdm_private_vblank *private_vblank;
733 TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_display_is_valid(dpy), TDM_ERROR_INVALID_PARAMETER, NULL);
734 TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_output_is_valid(output), TDM_ERROR_INVALID_PARAMETER, NULL);
737 *error = TDM_ERROR_NONE;
739 private_vblank = calloc(1, sizeof * private_vblank);
740 if (!private_vblank) {
741 /* LCOV_EXCL_START */
743 *error = TDM_ERROR_OUT_OF_MEMORY;
744 TDM_ERR("alloc failed");
749 tdm_output_add_change_handler(output, _tdm_vblank_cb_output_change, private_vblank);
751 private_vblank->stamp = ++stamp;
752 private_vblank->owner_tid = syscall(SYS_gettid);
753 private_vblank->dpy = dpy;
754 private_vblank->output = output;
755 private_vblank->check_HW_or_SW = 1;
756 private_vblank->fps_changeable = 1;
757 private_vblank->last_interval = -1;
759 _tdm_vblank_update_output_info(private_vblank);
761 strncpy(private_vblank->name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN - 1);
762 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
764 LIST_INITHEAD(&private_vblank->HW_wait_list);
765 LIST_INITHEAD(&private_vblank->SW_wait_list);
767 _tdm_vblank_valid_list_add(&private_vblank->valid_link, &valid_vblank_list);
769 VIN("created. vrefresh(%d) connection(%d)",
770 private_vblank->vrefresh, private_vblank->connection);
772 tdm_display_lock(private_vblank->dpy);
773 _tdm_vblank_call_thread_cb(private_vblank);
774 tdm_display_unlock(private_vblank->dpy);
776 return (tdm_vblank *)private_vblank;
780 tdm_vblank_destroy(tdm_vblank *vblank)
782 tdm_private_vblank *private_vblank = vblank;
783 tdm_vblank_wait_info *w = NULL, *ww = NULL;
785 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(vblank));
787 if (private_vblank->in_create_handler) {
788 TDM_ERR("NOT allowed to be called in a create handler");
792 _tdm_vblank_valid_list_del(&private_vblank->valid_link);
794 if (private_vblank->SW_timer) {
795 tdm_display_lock(private_vblank->dpy);
796 tdm_thread_cb_remove(private_vblank, TDM_THREAD_CB_VBLANK_SW, NULL, _tdm_vblank_cb_vblank_SW, NULL);
797 tdm_event_loop_source_remove(private_vblank->SW_timer);
798 tdm_display_unlock(private_vblank->dpy);
801 tdm_output_remove_change_handler(private_vblank->output,
802 _tdm_vblank_cb_output_change, private_vblank);
804 _tdm_vblank_free_HW_wait(private_vblank, 0, 0);
806 if (!LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
808 const char *proc_name;
809 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
810 VER("TDM SW vblank destroyed forcely!! (pid: %u, name: %s)", pid, proc_name);
813 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
815 _tdm_vblank_valid_list_del(&w->valid_link);
819 if (private_vblank->timeout_timer) {
820 tdm_display_lock(private_vblank->dpy);
821 tdm_event_loop_source_remove(private_vblank->timeout_timer);
822 tdm_display_unlock(private_vblank->dpy);
827 free(private_vblank);
831 tdm_vblank_get_client_pid(tdm_vblank *vblank, pid_t *pid)
833 tdm_private_vblank *private_vblank = vblank;
834 struct wl_client *client;
836 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
837 TDM_RETURN_VAL_IF_FAIL(pid != NULL, TDM_ERROR_INVALID_PARAMETER);
839 if (!private_vblank->resource) {
841 return TDM_ERROR_NONE;
844 client = wl_resource_get_client(private_vblank->resource);
847 return TDM_ERROR_NONE;
850 wl_client_get_credentials(client, pid, NULL, NULL);
852 return TDM_ERROR_NONE;
856 tdm_vblank_set_name(tdm_vblank *vblank, const char *name)
858 tdm_private_vblank *private_vblank = vblank;
860 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
863 name = TDM_VBLANK_DEFAULT_NAME;
865 strncpy(private_vblank->name, name, TDM_NAME_LEN - 1);
866 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
868 VIN("name(%s)", name);
870 return TDM_ERROR_NONE;
874 tdm_vblank_get_name(tdm_vblank *vblank, const char **name)
876 tdm_private_vblank *private_vblank = vblank;
878 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
879 TDM_RETURN_VAL_IF_FAIL(name != NULL, TDM_ERROR_INVALID_PARAMETER);
881 *name = (const char*)private_vblank->name;
883 return TDM_ERROR_NONE;
887 tdm_vblank_set_fps(tdm_vblank *vblank, unsigned int fps)
889 tdm_private_vblank *private_vblank = vblank;
891 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
892 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
894 if (private_vblank->fps_fixed) {
895 VIN("fps(%d) can't be changed", private_vblank->fps);
896 return TDM_ERROR_NONE;
899 private_vblank->fps_changeable = 0;
901 if (private_vblank->fps == fps)
902 return TDM_ERROR_NONE;
904 private_vblank->fps = fps;
905 private_vblank->check_HW_or_SW = 1;
907 VIN("fps(%d) changed", fps);
909 return TDM_ERROR_NONE;
913 tdm_vblank_get_fps(tdm_vblank *vblank, unsigned int *fps)
915 tdm_private_vblank *private_vblank = vblank;
917 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
918 TDM_RETURN_VAL_IF_FAIL(fps != NULL, TDM_ERROR_INVALID_PARAMETER);
920 *fps = private_vblank->fps;
922 return TDM_ERROR_NONE;
926 tdm_vblank_set_fixed_fps(tdm_vblank *vblank, unsigned int fps)
928 tdm_private_vblank *private_vblank = vblank;
930 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
931 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
933 private_vblank->fps_changeable = 0;
934 private_vblank->fps_fixed = 1;
936 if (private_vblank->fps == fps)
937 return TDM_ERROR_NONE;
939 private_vblank->fps = fps;
940 private_vblank->check_HW_or_SW = 1;
942 VIN("fps(%d) fixed", fps);
944 return TDM_ERROR_NONE;
948 tdm_vblank_ignore_global_fps(tdm_vblank *vblank, unsigned int ignore)
950 tdm_private_vblank *private_vblank = vblank;
952 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
954 if (private_vblank->ignore_global_fps == ignore)
955 return TDM_ERROR_NONE;
957 private_vblank->ignore_global_fps = ignore;
958 private_vblank->check_HW_or_SW = 1;
960 VIN("ignore_global_fps(%d)", private_vblank->ignore_global_fps);
962 return TDM_ERROR_NONE;
966 tdm_vblank_set_offset(tdm_vblank *vblank, int offset)
968 tdm_private_vblank *private_vblank = vblank;
970 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
972 if (private_vblank->offset == offset)
973 return TDM_ERROR_NONE;
975 private_vblank->offset = offset;
976 private_vblank->check_HW_or_SW = 1;
978 VIN("offset(%d)", private_vblank->offset);
980 return TDM_ERROR_NONE;
984 tdm_vblank_get_offset(tdm_vblank *vblank, int *offset)
986 tdm_private_vblank *private_vblank = vblank;
988 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
989 TDM_RETURN_VAL_IF_FAIL(offset != NULL, TDM_ERROR_INVALID_PARAMETER);
991 *offset = private_vblank->offset;
993 return TDM_ERROR_NONE;
997 tdm_vblank_set_enable_fake(tdm_vblank *vblank, unsigned int enable_fake)
999 tdm_private_vblank *private_vblank = vblank;
1001 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1003 if (private_vblank->enable_fake == enable_fake)
1004 return TDM_ERROR_NONE;
1006 private_vblank->enable_fake = enable_fake;
1008 VIN("enable_fake(%d)", private_vblank->enable_fake);
1010 return TDM_ERROR_NONE;
1014 tdm_vblank_get_enable_fake(tdm_vblank *vblank, unsigned int *enable_fake)
1016 tdm_private_vblank *private_vblank = vblank;
1018 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1019 TDM_RETURN_VAL_IF_FAIL(enable_fake != NULL, TDM_ERROR_INVALID_PARAMETER);
1021 *enable_fake = private_vblank->enable_fake;
1023 return TDM_ERROR_NONE;
1027 _tdm_vblank_timeout_timer_cb(void *user_data)
1029 tdm_private_vblank *private_vblank = user_data;
1030 tdm_vblank_wait_info *w = NULL;
1032 const char *proc_name;
1034 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_OPERATION_FAILED);
1036 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
1038 VER("TDM vblank TIMEOUT!! (pid: %u, name: %s)", pid, proc_name);
1039 VER("quotient(%u) last_seq(%u) last_time(%.6f)", private_vblank->quotient, private_vblank->last_seq, private_vblank->last_time);
1041 LIST_FOR_EACH_ENTRY(w, &private_vblank->HW_wait_list, link) {
1042 VER("wait_info(%p) req_time(%.6f) target_seq(%u) interval(%u) hw_interval(%d)",
1043 w, w->req_time, w->target_seq, w->interval, w->hw_interval);
1044 tdm_output_vblank_print_wait_information(private_vblank->output, w);
1047 LIST_FOR_EACH_ENTRY(w, &private_vblank->SW_wait_list, link) {
1048 VER("wait_info(%p) req_time(%.6f) target_time(%.6f) target_seq(%u) interval(%u)",
1049 w, w->req_time, w->target_time, w->target_seq, w->interval);
1052 return TDM_ERROR_NONE;
1056 _tdm_vblank_timeout_timer_update(tdm_private_vblank *private_vblank, int ms_delay)
1060 if (!private_vblank->timeout_timer) {
1061 private_vblank->timeout_timer =
1062 tdm_event_loop_add_timer_handler(private_vblank->dpy,
1063 _tdm_vblank_timeout_timer_cb,
1066 if (!private_vblank->timeout_timer) {
1067 VER("couldn't add timer");
1070 VIN("Create Timeout timer");
1073 ret = tdm_event_loop_source_timer_update(private_vblank->timeout_timer, ms_delay);
1074 if (ret != TDM_ERROR_NONE) {
1075 VER("couldn't update timer");
1080 VDB("timeout timer updated");
1082 VDB("timeout timer disabled");
1086 _tdm_vblank_sw_timer_update(tdm_private_vblank *private_vblank)
1088 tdm_vblank_wait_info *first_wait_info = NULL;
1089 double curr, target;
1093 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1094 VER("no wait_info");
1095 return TDM_ERROR_OPERATION_FAILED;
1098 first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1099 curr = tdm_helper_get_time();
1100 target = first_wait_info->target_time;
1102 /* ms_delay should be more that 1 */
1106 ms_delay = ceil((target - curr) * 1000.0);
1111 if (ms_delay > 5000)
1112 VER("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1114 VDB("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1116 tdm_display_lock(private_vblank->dpy);
1118 if (!private_vblank->SW_timer) {
1119 private_vblank->SW_timer =
1120 tdm_event_loop_add_timer_handler(private_vblank->dpy,
1121 _tdm_vblank_cb_timeout_SW,
1124 if (!private_vblank->SW_timer) {
1125 tdm_display_unlock(private_vblank->dpy);
1126 VER("couldn't add timer");
1130 ret = tdm_thread_cb_add(private_vblank, TDM_THREAD_CB_VBLANK_SW, NULL, _tdm_vblank_cb_vblank_SW, NULL);
1131 if (ret != TDM_ERROR_NONE) {
1132 tdm_event_loop_source_remove(private_vblank->SW_timer);
1133 private_vblank->SW_timer = NULL;
1134 tdm_display_unlock(private_vblank->dpy);
1135 VER("couldn't add thread_cb");
1139 VIN("Create SW timer");
1142 private_vblank->last_interval = ms_delay;
1144 ret = tdm_event_loop_source_timer_update(private_vblank->SW_timer, ms_delay);
1145 if (ret != TDM_ERROR_NONE) {
1146 /* LCOV_EXCL_START */
1147 tdm_display_unlock(private_vblank->dpy);
1148 VER("couldn't update timer");
1150 /* LCOV_EXCL_STOP */
1153 tdm_display_unlock(private_vblank->dpy);
1155 return TDM_ERROR_NONE;
1159 _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
1160 unsigned int tv_sec, unsigned int tv_usec,
1163 tdm_vblank_wait_info *wait_info = user_data;
1164 tdm_private_vblank *private_vblank;
1166 if (!_tdm_vblank_check_valid_wait(wait_info)) {
1167 TDM_ERR("can't find wait(%p) from valid_wait_list", wait_info);
1171 private_vblank = wait_info->private_vblank;
1172 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
1174 assert(private_vblank->owner_tid == syscall(SYS_gettid));
1176 if (!_tdm_vblank_find_wait(wait_info, &private_vblank->HW_wait_list)) {
1177 VER("can't find wait(%p)", wait_info);
1181 if (wait_info->type == VBLANK_TYPE_HW_SW) {
1184 LIST_DEL(&wait_info->link);
1186 /* kernel sends the wrong time of first vblank event. and the time of
1187 * second vblank is correct.
1189 wait_info->target_time = TDM_TIME(tv_sec, tv_usec);
1190 wait_info->target_time += (((double)private_vblank->offset) / 1000.0);
1192 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1194 ret = _tdm_vblank_sw_timer_update(private_vblank);
1196 /* wait_info will be freed in _tdm_vblank_cb_timeout_SW() */
1197 if (ret == TDM_ERROR_NONE) {
1198 VIN("wait(%p) SW timer", wait_info);
1202 VER("couldn't update sw timer");
1205 tdm_display_lock(private_vblank->dpy);
1206 _tdm_vblank_timeout_timer_update(private_vblank, 0);
1207 tdm_display_unlock(private_vblank->dpy);
1209 LIST_DEL(&wait_info->link);
1210 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1212 /* tv_sec & tv_usec shouldn't be zero. But sometimes they are zero in some hardware.
1213 * We need to prohibit that last_time becomes zero because "last_time == 0" means
1214 * that a tdm_vblank object is just created and doesn't have the first vblank event.
1215 * If last_time becomes 0, it would make issue.
1217 if (tv_sec == 0 && tv_usec == 0) {
1218 double curr = tdm_helper_get_time();
1219 tv_sec = TDM_TIME_SEC(curr);
1220 tv_usec = TDM_TIME_USEC(curr);
1223 private_vblank->last_seq = wait_info->target_seq;
1224 private_vblank->last_time = TDM_TIME(tv_sec, tv_usec);
1226 VDB("wait(%p) last(%.6f) sequence(%u) done", wait_info, private_vblank->last_time, wait_info->target_seq);
1228 if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1229 TDM_TRACE_ASYNC_END((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1231 if (wait_info->func)
1232 wait_info->func(private_vblank, TDM_ERROR_NONE, wait_info->target_seq,
1233 tv_sec, tv_usec, wait_info->user_data);
1239 _tdm_vblank_wait_HW(tdm_vblank_wait_info *wait_info)
1241 tdm_private_vblank *private_vblank = wait_info->private_vblank;
1245 if (private_vblank->last_type != VBLANK_EVENT_TYPE_HW) {
1246 VIN("Use HW vblank");
1247 private_vblank->last_type = VBLANK_EVENT_TYPE_HW;
1250 _tdm_vblank_insert_wait(wait_info, &private_vblank->HW_wait_list);
1252 if (private_vblank->last_time == 0) {
1253 hw_interval = wait_info->interval * private_vblank->quotient;
1255 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1256 private_vblank->last_seq = 0;
1257 private_vblank->last_time = tdm_helper_get_time();
1259 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1260 wait_info->target_seq = 1;
1262 VDB("wait(%p) last(%.6f) hw_itvl(%d) targ_seq(%u)",
1263 wait_info, private_vblank->last_time, hw_interval, wait_info->target_seq);
1265 double last, prev, req, curr, target;
1268 last = private_vblank->last_time;
1269 req = wait_info->req_time;
1271 /* make sure that req time is bigger than last. */
1275 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1276 prev = last + private_vblank->vblank_gap * skip;
1278 curr = tdm_helper_get_time();
1280 while (target < curr)
1281 target += (private_vblank->vblank_gap * wait_info->interval);
1283 hw_interval = (unsigned int)((target - curr) / private_vblank->HW_vblank_gap + TDM_TIME_MARGIN) + 1;
1285 wait_info->target_seq = private_vblank->last_seq;
1286 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1288 if (hw_interval > 300)
1289 VER("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1290 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1291 skip, hw_interval, wait_info->target_seq);
1293 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1294 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1295 skip, hw_interval, wait_info->target_seq);
1298 private_vblank->last_interval = hw_interval;
1299 wait_info->hw_interval = hw_interval;
1301 if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1302 TDM_TRACE_ASYNC_BEGIN((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1304 if (private_vblank->add_front)
1305 ret = tdm_output_wait_vblank_add_front(private_vblank->output, hw_interval, 0,
1306 _tdm_vblank_cb_vblank_HW, wait_info);
1308 ret = tdm_output_wait_vblank(private_vblank->output, hw_interval, 0,
1309 _tdm_vblank_cb_vblank_HW, wait_info);
1311 if (ret != TDM_ERROR_NONE) {
1312 LIST_DEL(&wait_info->link);
1316 VDB("wait(%p) waiting", wait_info);
1318 return TDM_ERROR_NONE;
1322 _tdm_vblank_cb_vblank_SW(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data)
1324 tdm_private_vblank *private_vblank = object;
1325 tdm_vblank_wait_info *first_wait_info = NULL, *w = NULL, *ww = NULL;
1327 TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
1329 assert(private_vblank->owner_tid == syscall(SYS_gettid));
1331 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1332 VER("no wait_info");
1336 if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list))
1337 TDM_NEVER_GET_HERE();
1339 first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1340 TDM_RETURN_IF_FAIL(first_wait_info != NULL);
1342 _tdm_vblank_timeout_timer_update(private_vblank, 0);
1344 if (private_vblank->last_seq >= first_wait_info->target_seq)
1345 TDM_ERR("last_seq(%u) target_seq(%u)", private_vblank->last_seq, first_wait_info->target_seq);
1347 private_vblank->last_seq = first_wait_info->target_seq;
1348 private_vblank->last_time = first_wait_info->target_time;
1350 VDB("wait(%p) last(%.6f) sequence(%u) done", first_wait_info, private_vblank->last_time, first_wait_info->target_seq);
1352 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
1353 if (w->target_time != first_wait_info->target_time)
1357 _tdm_vblank_valid_list_del(&w->valid_link);
1360 tdm_display_unlock(private_vblank->dpy);
1361 w->func(private_vblank, TDM_ERROR_NONE, w->target_seq,
1362 TDM_TIME_SEC(w->target_time), TDM_TIME_USEC(w->target_time),
1364 tdm_display_lock(private_vblank->dpy);
1372 _tdm_vblank_cb_timeout_SW(void *user_data)
1374 tdm_private_vblank *private_vblank = user_data;
1375 tdm_thread_cb_vblank_sw vblank_sw;
1378 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(private_vblank), TDM_ERROR_OPERATION_FAILED);
1380 VIN("timeout_SW -> thread-cb");
1382 memset(&vblank_sw, 0, sizeof vblank_sw);
1383 vblank_sw.base.type = TDM_THREAD_CB_VBLANK_SW;
1384 vblank_sw.base.length = sizeof vblank_sw;
1385 vblank_sw.base.object_stamp = private_vblank->stamp;
1386 vblank_sw.base.data = NULL;
1387 vblank_sw.base.sync = 0;
1389 ret = tdm_thread_cb_call(private_vblank, &vblank_sw.base);
1390 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
1392 return TDM_ERROR_NONE;
1396 _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info)
1398 tdm_private_vblank *private_vblank = wait_info->private_vblank;
1401 if (private_vblank->last_type != VBLANK_EVENT_TYPE_SW) {
1402 VIN("Use SW vblank");
1403 private_vblank->last_type = VBLANK_EVENT_TYPE_SW;
1406 if (private_vblank->last_time == 0) {
1407 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1408 private_vblank->last_seq = 0;
1409 private_vblank->last_time = tdm_helper_get_time();
1411 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1412 wait_info->target_seq = 1;
1413 wait_info->target_time = private_vblank->last_time + 0.001;
1415 VDB("wait(%p) last(%.6f) target(%.6f) target sequence(%u)",
1416 wait_info, private_vblank->last_time, wait_info->target_time, wait_info->target_seq);
1418 double last, prev, req, curr, target;
1421 last = private_vblank->last_time;
1422 req = wait_info->req_time;
1424 /* make sure that req time is bigger than last. */
1428 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1429 prev = last + private_vblank->vblank_gap * skip;
1431 curr = tdm_helper_get_time();
1432 target = prev + private_vblank->vblank_gap * wait_info->interval;
1434 while (target < curr)
1435 target += private_vblank->vblank_gap;
1437 wait_info->target_seq = private_vblank->last_seq;
1438 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1440 wait_info->target_time = target;
1442 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) targ_seq(%u)",
1443 wait_info, last, req - last, prev - last, curr - last,
1444 target, target - last, skip, wait_info->target_seq);
1447 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1449 ret = _tdm_vblank_sw_timer_update(private_vblank);
1450 if (ret != TDM_ERROR_NONE) {
1451 /* LCOV_EXCL_START */
1452 LIST_DEL(&wait_info->link);
1453 VER("couldn't update sw timer");
1455 /* LCOV_EXCL_STOP */
1458 return TDM_ERROR_NONE;
1462 tdm_vblank_wait(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1463 unsigned int interval, tdm_vblank_handler func, void *user_data)
1465 tdm_private_vblank *private_vblank = vblank;
1466 tdm_vblank_wait_info *wait_info;
1467 tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1471 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1472 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1474 if (private_vblank->in_create_handler) {
1475 TDM_ERR("NOT allowed to be called in a create handler");
1476 return TDM_ERROR_BAD_REQUEST;
1479 if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1480 TDM_ERR("SHOULD be called in the owner thread(%d)", (int)private_vblank->owner_tid);
1481 return TDM_ERROR_BAD_REQUEST;
1484 tdm_output_get_dpms(private_vblank->output, &dpms);
1486 if (!private_vblank->enable_fake) {
1487 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
1488 VER("can't wait a vblank: output disconnected");
1489 return TDM_ERROR_OUTPUT_DISCONNECTED;
1491 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms)) {
1492 VER("can't wait a vblank: DPMS %s", tdm_dpms_str(dpms));
1493 return TDM_ERROR_DPMS_OFF;
1497 wait_info = calloc(1, sizeof * wait_info);
1499 /* LCOV_EXCL_START */
1500 VER("alloc failed");
1501 return TDM_ERROR_OUT_OF_MEMORY;
1502 /* LCOV_EXCL_STOP */
1504 _tdm_vblank_update_output_info(private_vblank);
1506 /* set request time to current time if 0. This function seems to be called in server side. */
1507 if (req_sec == 0 && req_usec == 0) {
1508 double curr = tdm_helper_get_time();
1509 req_sec = TDM_TIME_SEC(curr);
1510 req_usec = TDM_TIME_USEC(curr);
1513 LIST_INITHEAD(&wait_info->link);
1515 _tdm_vblank_valid_list_add(&wait_info->valid_link, &valid_wait_list);
1517 wait_info->stamp = ++stamp;
1518 wait_info->req_time = TDM_TIME(req_sec, req_usec);
1519 wait_info->interval = interval;
1520 wait_info->func = func;
1521 wait_info->user_data = user_data;
1522 wait_info->private_vblank = private_vblank;
1524 if (private_vblank->ignore_global_fps ||
1525 vblank_global_fps == 0 ||
1526 private_vblank->fps < vblank_global_fps)
1527 fps = private_vblank->fps;
1529 fps = vblank_global_fps;
1531 if (private_vblank->check_HW_or_SW) {
1532 private_vblank->check_HW_or_SW = 0;
1533 private_vblank->vblank_gap = 1.0 / fps;
1534 private_vblank->quotient = private_vblank->vrefresh / fps;
1537 /* 1) if fps != factor of vrefresh, SW timer
1538 * 2) if fps == factor of vrefresh && dpms == off, SW timer (Fake HW vblank)
1539 * 2) if fps == factor of vrefresh && dpms == on && offset == 0, HW vblank
1540 * 3) if fps == factor of vrefresh && dpms == on && offset != 0, HW vblank + SW timer
1541 * In case of 1), we really don't need to align with HW vblank.
1543 if (private_vblank->vrefresh % fps)
1544 wait_info->type = VBLANK_TYPE_SW;
1545 else if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms) ||
1546 private_vblank->connection != TDM_OUTPUT_CONN_STATUS_MODE_SETTED)
1547 wait_info->type = VBLANK_TYPE_SW_FAKE;
1548 else if (private_vblank->offset == 0)
1549 wait_info->type = VBLANK_TYPE_HW;
1551 wait_info->type = VBLANK_TYPE_HW_SW;
1553 if (wait_info->type == VBLANK_TYPE_SW || wait_info->type == VBLANK_TYPE_SW_FAKE) {
1554 ret = _tdm_vblank_wait_SW(wait_info);
1555 if (ret != TDM_ERROR_NONE)
1556 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1558 ret = _tdm_vblank_wait_HW(wait_info);
1559 if (ret != TDM_ERROR_NONE)
1560 TDM_ERR("_tdm_vblank_wait_HW failed: ret(%d)", ret);
1562 if (ret == TDM_ERROR_OUTPUT_DISCONNECTED || ret == TDM_ERROR_DPMS_OFF) {
1563 ret = _tdm_vblank_wait_SW(wait_info);
1564 if (ret != TDM_ERROR_NONE)
1565 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1569 if (ret != TDM_ERROR_NONE) {
1570 /* LCOV_EXCL_START */
1571 LIST_DEL(&wait_info->link);
1572 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1574 tdm_display_lock(private_vblank->dpy);
1575 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, wait_info);
1576 tdm_display_unlock(private_vblank->dpy);
1580 /* LCOV_EXCL_STOP */
1583 tdm_display_lock(private_vblank->dpy);
1584 _tdm_vblank_timeout_timer_update(private_vblank, 1000);
1585 tdm_display_unlock(private_vblank->dpy);
1587 return TDM_ERROR_NONE;
1591 tdm_vblank_wait_seq(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1592 unsigned int sequence, tdm_vblank_handler func, void *user_data)
1594 tdm_private_vblank *private_vblank = vblank;
1595 unsigned int interval;
1597 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1598 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1600 /* if the sequence of vblank reaches the max value, sequence can be 0. */
1602 if (private_vblank->last_seq == 0) {
1603 VWR("can't calculate interval with sequence(%u)", sequence);
1605 } else if (sequence > private_vblank->last_seq ||
1606 TDM_VBLANK_SEQ_REACHED_MAX(sequence, private_vblank->last_seq)) {
1607 double last, curr, seq_target;
1609 last = private_vblank->last_time;
1610 curr = tdm_helper_get_time();
1611 seq_target = last + private_vblank->vblank_gap * (sequence - private_vblank->last_seq);
1613 /* If target is old or too close(1ms) to current, we call the handler immediately.
1614 * 2ms? it seems too much.
1616 if (seq_target < curr) {
1617 func(vblank, TDM_ERROR_NONE, sequence,
1618 TDM_TIME_SEC(seq_target), TDM_TIME_USEC(seq_target),
1620 return TDM_ERROR_NONE;
1621 } else if ((seq_target - curr) < 0.001) { /* 1ms */
1622 func(vblank, TDM_ERROR_NONE, sequence,
1623 TDM_TIME_SEC(curr), TDM_TIME_USEC(curr),
1625 return TDM_ERROR_NONE;
1628 interval = (unsigned int)((seq_target - curr) / private_vblank->vblank_gap + TDM_TIME_MARGIN) + 1;
1630 /* this seems error. But we handle this like normal to avoid the unexpected error in cliend side */
1631 VER("sequence(%u) should be over the last sequence(%u)", sequence, private_vblank->last_seq);
1632 func(vblank, TDM_ERROR_NONE, private_vblank->last_seq,
1633 TDM_TIME_SEC(private_vblank->last_time), TDM_TIME_USEC(private_vblank->last_time),
1635 return TDM_ERROR_NONE;
1638 return tdm_vblank_wait(vblank, req_sec, req_usec, interval, func, user_data);
1641 /* LCOV_EXCL_START */
1643 tdm_vblank_set_add_front(tdm_vblank *vblank, unsigned int add_front)
1645 tdm_private_vblank *private_vblank = vblank;
1647 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1649 TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
1651 if (private_vblank->add_front == add_front)
1652 return TDM_ERROR_NONE;
1654 private_vblank->add_front = add_front;
1656 return TDM_ERROR_NONE;
1658 /* LCOV_EXCL_STOP */
1661 tdm_vblank_set_resource(tdm_vblank *vblank, struct wl_resource *resource)
1663 tdm_private_vblank *private_vblank = vblank;
1665 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1666 TDM_RETURN_VAL_IF_FAIL(private_vblank->resource == NULL, TDM_ERROR_OPERATION_FAILED);
1668 private_vblank->resource = resource;
1670 return TDM_ERROR_NONE;
1674 tdm_vblank_get_stamp(tdm_vblank *vblank)
1676 tdm_private_vblank *private_vblank = vblank;
1678 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1680 return private_vblank->stamp;
1684 _tdm_vblank_get_waiting_count(tdm_private_vblank *private_vblank)
1686 tdm_vblank_wait_info *wait_info = NULL;
1687 unsigned int count = 0;
1689 LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->HW_wait_list, link) {
1693 LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->SW_wait_list, link) {
1701 _tdm_vblank_get_client_information(tdm_private_vblank *private_vblank, pid_t *pid, const char **name)
1703 struct wl_client *client;
1705 if (!private_vblank->resource)
1708 client = wl_resource_get_client(private_vblank->resource);
1712 wl_client_get_credentials(client, pid, NULL, NULL);
1713 *name = tdm_server_get_client_name(*pid);
1723 /* LCOV_EXCL_START */
1725 tdm_vblank_get_vblank_list_information(tdm_display *dpy, char *reply, int *len)
1727 tdm_private_vblank *v = NULL;
1728 tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1729 tdm_output *output = tdm_display_get_output(dpy, 0, NULL);
1732 tdm_output_get_dpms(output, &dpms);
1734 TDM_SNPRINTF(reply, len, "[Client Vblank List]\n");
1735 TDM_SNPRINTF(reply, len, "* DPMS: %s\n", tdm_dpms_str(dpms));
1736 TDM_SNPRINTF(reply, len, "* global fps: %u\n", vblank_global_fps);
1737 TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1738 TDM_SNPRINTF(reply, len, "Name Type Wait Interval Sequence Fps Ignore Offset Fake Process\n");
1739 TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1741 pthread_mutex_lock(&valid_list_lock);
1742 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
1743 const char *proc_name = NULL;
1747 _tdm_vblank_get_client_information(v, &pid, &proc_name);
1749 count = _tdm_vblank_get_waiting_count(v);
1751 TDM_SNPRINTF(reply, len, "%-8s(%p) ", v->name, v);
1752 TDM_SNPRINTF(reply, len, "%-4s ", (v->last_type == VBLANK_EVENT_TYPE_HW) ? "HW" : "SW");
1753 TDM_SNPRINTF(reply, len, "%-4s ", (count > 0) ? "O" : " ");
1754 TDM_SNPRINTF(reply, len, "%-8d ", v->last_interval);
1755 TDM_SNPRINTF(reply, len, "%-8u ", v->last_seq);
1756 TDM_SNPRINTF(reply, len, "%-3u ", v->fps);
1757 TDM_SNPRINTF(reply, len, "%-6u ", v->ignore_global_fps);
1758 TDM_SNPRINTF(reply, len, "%-6d ", v->offset);
1759 TDM_SNPRINTF(reply, len, "%-4u ", v->enable_fake);
1760 TDM_SNPRINTF(reply, len, "%s(pid:%d)\n", (proc_name) ? proc_name : "Unknown", pid);
1762 pthread_mutex_unlock(&valid_list_lock);
1764 TDM_SNPRINTF(reply, len, "\n");
1766 /* LCOV_EXCL_STOP */