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 tdm_error _tdm_vblank_cb_vblank_SW(void *user_data);
173 static tdm_error _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info);
174 static void _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
175 unsigned int tv_sec, unsigned int tv_usec,
177 static void _tdm_vblank_timeout_timer_update(tdm_private_vblank *private_vblank, int ms_delay);
178 static void _tdm_vblank_get_client_information(tdm_private_vblank *private_vblank,
179 pid_t *pid, const char **name);
183 _print_list(struct list_head *list)
185 tdm_vblank_wait_info *w = NULL;
187 LIST_FOR_EACH_ENTRY(w, list, link) {
188 printf(" %d", w->interval);
195 tdm_vblank_is_valid(tdm_vblank *vblank)
197 tdm_private_vblank *v = NULL;
199 if (vblank && vblank_list_inited) {
200 pthread_mutex_lock(&valid_list_lock);
201 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
202 if (v == (tdm_private_vblank *)vblank) {
203 pthread_mutex_unlock(&valid_list_lock);
207 pthread_mutex_unlock(&valid_list_lock);
214 _tdm_vblank_valid_list_add(struct list_head *valid_link, struct list_head *valid_list)
216 pthread_mutex_lock(&valid_list_lock);
217 LIST_ADDTAIL(valid_link, valid_list);
218 pthread_mutex_unlock(&valid_list_lock);
222 _tdm_vblank_valid_list_del(struct list_head *valid_link)
224 pthread_mutex_lock(&valid_list_lock);
225 LIST_DEL(valid_link);
226 pthread_mutex_unlock(&valid_list_lock);
229 static inline tdm_private_vblank*
230 _tdm_vblank_find(double vblank_stamp)
232 tdm_private_vblank *v = NULL;
237 pthread_mutex_lock(&valid_list_lock);
238 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
239 if (v->stamp == vblank_stamp) {
240 pthread_mutex_unlock(&valid_list_lock);
244 pthread_mutex_unlock(&valid_list_lock);
249 static inline unsigned int
250 _tdm_vblank_check_valid_wait(tdm_vblank_wait_info *wait_info)
252 tdm_vblank_wait_info *w = NULL;
257 pthread_mutex_lock(&valid_list_lock);
258 LIST_FOR_EACH_ENTRY(w, &valid_wait_list, valid_link) {
259 if (w == wait_info) {
260 pthread_mutex_unlock(&valid_list_lock);
264 pthread_mutex_unlock(&valid_list_lock);
269 static inline unsigned int
270 _tdm_vblank_find_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
272 tdm_vblank_wait_info *w = NULL;
277 LIST_FOR_EACH_ENTRY(w, list, link) {
278 if (w->stamp == wait_info->stamp)
286 _tdm_vblank_insert_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
288 tdm_vblank_wait_info *w = NULL;
289 tdm_vblank_wait_info *found = NULL;
291 if (LIST_IS_EMPTY(list)) {
292 LIST_ADDTAIL(&wait_info->link, list);
296 LIST_FOR_EACH_ENTRY(w, list, link) {
297 if (wait_info->type == VBLANK_TYPE_SW) {
298 if (wait_info->target_time == 0)
299 TDM_NEVER_GET_HERE();
300 if (w->target_time <= wait_info->target_time) {
305 if (w->interval <= wait_info->interval) {
313 LIST_ADD(&wait_info->link, &found->link);
315 LIST_ADDTAIL(&wait_info->link, list->next);
319 _tdm_vblank_change_to_SW(tdm_private_vblank *private_vblank)
321 tdm_vblank_wait_info *w = NULL, *ww = NULL;
323 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
326 tdm_display_lock(private_vblank->dpy);
327 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, w);
328 tdm_display_unlock(private_vblank->dpy);
330 w->type = VBLANK_TYPE_SW_FAKE;
331 _tdm_vblank_wait_SW(w);
336 _tdm_vblank_free_HW_wait(tdm_private_vblank *private_vblank, tdm_error error, unsigned int call_cb)
338 tdm_vblank_wait_info *w = NULL, *ww = NULL;
340 if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list)) {
342 const char *proc_name;
343 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
344 VER("TDM HW vblank destroyed forcely!! (pid: %u, name: %s)", pid, proc_name);
347 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
349 _tdm_vblank_valid_list_del(&w->valid_link);
351 tdm_display_lock(private_vblank->dpy);
352 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, w);
353 tdm_display_unlock(private_vblank->dpy);
355 VDB("wait(%p) last(%.6f) sequence(%u) done (error:%d, call_cb:%u)",
356 w, 0, w->target_seq, error, call_cb);
358 if (call_cb && w->func)
359 w->func(private_vblank, error, 0, 0, 0, w->user_data);
366 _tdm_vblank_update_output_info(tdm_private_vblank *private_vblank)
368 tdm_output *output = private_vblank->output;
369 tdm_output_conn_status connection = TDM_OUTPUT_CONN_STATUS_DISCONNECTED;
370 unsigned int vrefresh = 0;
373 ret = tdm_output_get_conn_status(output, &connection);
374 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
376 if (connection != TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
377 const tdm_output_mode *mode = NULL;
378 tdm_output_get_mode(output, &mode);
380 vrefresh = mode->vrefresh;
382 VWR("mode not setted!!!");
386 VWR("vrefresh can't be zero !!!");
387 vrefresh = TDM_VBLANK_DEFAULT_VREFRESH;
390 private_vblank->connection = connection;
391 private_vblank->vrefresh = vrefresh;
392 private_vblank->HW_vblank_gap = 1.0 / private_vblank->vrefresh;
394 if (private_vblank->fps_changeable)
395 private_vblank->fps = vrefresh;
397 VIN("connection(%d) vrefresh(%d) fps(%d) fps_changeable(%d)",
398 private_vblank->connection,
399 private_vblank->vrefresh, private_vblank->fps, private_vblank->fps_changeable);
402 /* LCOV_EXCL_START */
404 _tdm_vblank_cb_output_change(tdm_output *output, tdm_output_change_type type,
405 tdm_value value, void *user_data)
407 tdm_private_vblank *private_vblank = user_data;
409 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
412 case TDM_OUTPUT_CHANGE_DPMS:
413 VIN("dpms %s", tdm_dpms_str(value.u32));
414 private_vblank->check_HW_or_SW = 1;
415 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(value.u32)) {
416 if (private_vblank->enable_fake)
417 _tdm_vblank_change_to_SW(private_vblank);
419 tdm_display_lock(private_vblank->dpy);
420 _tdm_vblank_timeout_timer_update(private_vblank, 0);
421 tdm_display_unlock(private_vblank->dpy);
423 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_DPMS_OFF, 1);
427 case TDM_OUTPUT_CHANGE_CONNECTION:
428 if (private_vblank->connection == value.u32)
430 VIN("output %s", tdm_status_str(value.u32));
431 _tdm_vblank_update_output_info(private_vblank);
432 private_vblank->check_HW_or_SW = 1;
433 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
434 if (private_vblank->enable_fake)
435 _tdm_vblank_change_to_SW(private_vblank);
437 tdm_display_lock(private_vblank->dpy);
438 _tdm_vblank_timeout_timer_update(private_vblank, 0);
439 tdm_display_unlock(private_vblank->dpy);
441 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_OUTPUT_DISCONNECTED, 1);
452 tdm_vblank_set_client_vblank_fps(unsigned int pid, const char *name, unsigned int fps)
454 tdm_private_vblank *v = NULL;
456 TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
457 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
459 TDM_INFO("pid: %u, name: %s, fps: %d", pid, name, fps);
461 pthread_mutex_lock(&valid_list_lock);
462 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
463 struct wl_client *client;
464 pid_t client_pid = 0;
469 client = wl_resource_get_client(v->resource);
473 wl_client_get_credentials(client, &client_pid, NULL, NULL);
475 if (client_pid != pid)
478 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
479 if (strncmp(v->name, name, TDM_NAME_LEN))
483 tdm_vblank_set_fps(v, fps);
485 TDM_INFO("(pid:%u) '%s' fps changed: %d", pid, v->name, fps);
487 pthread_mutex_unlock(&valid_list_lock);
489 return TDM_ERROR_NONE;
493 tdm_vblank_set_client_ignore_global_fps(unsigned int pid, const char *name, unsigned int ignore)
495 tdm_private_vblank *v = NULL;
497 TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
499 TDM_INFO("pid: %u, name: %s, ignore: %u", pid, name, ignore);
501 pthread_mutex_lock(&valid_list_lock);
502 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
503 struct wl_client *client;
504 pid_t client_pid = 0;
509 client = wl_resource_get_client(v->resource);
513 wl_client_get_credentials(client, &client_pid, NULL, NULL);
515 if (client_pid != pid)
518 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
519 if (strncmp(v->name, name, TDM_NAME_LEN))
523 tdm_vblank_ignore_global_fps(v, ignore);
525 TDM_INFO("(pid:%u) '%s' ignore changed: %u", pid, v->name, ignore);
527 pthread_mutex_unlock(&valid_list_lock);
529 return TDM_ERROR_NONE;
533 tdm_vblank_enable_global_fps(unsigned int enable, unsigned int fps)
535 tdm_private_vblank *v = NULL;
538 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
540 TDM_INFO("global fps: %s fps(%d)", (enable) ? "enabled" : "disabled", fps);
542 pthread_mutex_lock(&valid_list_lock);
544 vblank_global_fps = (enable) ? fps : 0;
546 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
547 /* skip if vblank is created in server side */
551 v->check_HW_or_SW = 1;
553 pthread_mutex_unlock(&valid_list_lock);
555 return TDM_ERROR_NONE;
559 tdm_vblank_cb_vblank_create(tdm_vblank *vblank, double vblank_stamp)
561 tdm_private_vblank *private_vblank;
562 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
564 TDM_RETURN_VAL_IF_FAIL(vblank || vblank_stamp > 0, TDM_ERROR_INVALID_PARAMETER);
567 private_vblank = vblank;
569 private_vblank = _tdm_vblank_find(vblank_stamp);
570 if (!private_vblank) {
571 TDM_DBG("can't find vblank(%.0f) from valid_list", vblank_stamp);
572 return TDM_ERROR_NONE;
576 if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
577 tdm_thread_cb_vblank_create vblank_create;
578 tdm_private_display *private_display = private_vblank->dpy;
581 vblank_create.base.type = TDM_THREAD_CB_VBLANK_CREATE;
582 vblank_create.base.length = sizeof vblank_create;
583 vblank_create.vblank_stamp = private_vblank->stamp;
585 ret = tdm_thread_send_cb(private_display->private_loop, &vblank_create.base);
586 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
588 return TDM_ERROR_NONE;
591 LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
592 private_vblank->in_create_handler = 1;
593 ch_info->func(private_vblank, ch_info->user_data);
594 private_vblank->in_create_handler = 0;
597 return TDM_ERROR_NONE;
601 tdm_vblank_add_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
603 tdm_vblank_create_handler_info *ch_info;
605 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
607 /* we don't allow adding a create handler in sub-thread because tdm_vblank_create()
608 * can be called in both threads and tdm_thread_send_cb supports only one-way
611 if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
612 TDM_ERR("add_create_handler should be called in main thread");
613 return TDM_ERROR_BAD_REQUEST;
616 ch_info = calloc(1, sizeof *ch_info);
617 TDM_RETURN_VAL_IF_FAIL(ch_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
619 ch_info->func = func;
620 ch_info->user_data = user_data;
622 LIST_ADDTAIL(&ch_info->link, &create_handler_list);
624 return TDM_ERROR_NONE;
628 tdm_vblank_remove_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
630 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
632 /* we don't allow adding a create handler in sub-thread because tdm_vblank_create()
633 * can be called in both threads and tdm_thread_send_cb supports only one-way
636 if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
637 TDM_ERR("remove_create_handler should be called in main thread");
641 LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
642 if (ch_info->func != func && ch_info->user_data != user_data)
645 LIST_DEL(&ch_info->link);
652 tdm_vblank_init(tdm_display *dpy)
654 if (vblank_list_inited)
655 return TDM_ERROR_NONE;
657 if (pthread_mutex_init(&valid_list_lock, NULL)) {
658 TDM_ERR("mutex init failed: %m");
659 return TDM_ERROR_OUT_OF_MEMORY;
662 LIST_INITHEAD(&valid_vblank_list);
663 LIST_INITHEAD(&valid_wait_list);
664 LIST_INITHEAD(&create_handler_list);
666 vblank_list_inited = 1;
668 return TDM_ERROR_NONE;
672 tdm_vblank_deinit(tdm_display *dpy)
674 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
676 if (!vblank_list_inited)
679 if (!LIST_IS_EMPTY(&valid_vblank_list))
680 TDM_NEVER_GET_HERE();
682 if (!LIST_IS_EMPTY(&valid_wait_list))
683 TDM_NEVER_GET_HERE();
685 LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
686 LIST_DEL(&ch_info->link);
690 pthread_mutex_destroy(&valid_list_lock);
692 vblank_list_inited = 0;
696 tdm_vblank_create(tdm_display *dpy, tdm_output *output, tdm_error *error)
698 tdm_private_vblank *private_vblank;
701 TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_display_is_valid(dpy), TDM_ERROR_INVALID_PARAMETER, NULL);
702 TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_output_is_valid(output), TDM_ERROR_INVALID_PARAMETER, NULL);
705 *error = TDM_ERROR_NONE;
707 private_vblank = calloc(1, sizeof * private_vblank);
708 if (!private_vblank) {
709 /* LCOV_EXCL_START */
711 *error = TDM_ERROR_OUT_OF_MEMORY;
712 TDM_ERR("alloc failed");
717 tdm_output_add_change_handler(output, _tdm_vblank_cb_output_change, private_vblank);
719 private_vblank->stamp = ++stamp;
720 private_vblank->owner_tid = syscall(SYS_gettid);
721 private_vblank->dpy = dpy;
722 private_vblank->output = output;
723 private_vblank->check_HW_or_SW = 1;
724 private_vblank->fps_changeable = 1;
725 private_vblank->last_interval = -1;
727 _tdm_vblank_update_output_info(private_vblank);
729 strncpy(private_vblank->name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN - 1);
730 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
732 LIST_INITHEAD(&private_vblank->HW_wait_list);
733 LIST_INITHEAD(&private_vblank->SW_wait_list);
735 _tdm_vblank_valid_list_add(&private_vblank->valid_link, &valid_vblank_list);
737 VIN("created. vrefresh(%d) connection(%d)",
738 private_vblank->vrefresh, private_vblank->connection);
740 tdm_display_lock(private_vblank->dpy);
741 tdm_vblank_cb_vblank_create(NULL, private_vblank->stamp);
742 tdm_display_unlock(private_vblank->dpy);
744 return (tdm_vblank *)private_vblank;
748 tdm_vblank_destroy(tdm_vblank *vblank)
750 tdm_private_vblank *private_vblank = vblank;
751 tdm_vblank_wait_info *w = NULL, *ww = NULL;
753 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(vblank));
755 if (private_vblank->in_create_handler) {
756 TDM_ERR("NOT allowed to be called in a create handler");
760 _tdm_vblank_valid_list_del(&private_vblank->valid_link);
762 if (private_vblank->SW_timer) {
763 tdm_display_lock(private_vblank->dpy);
764 tdm_event_loop_source_remove(private_vblank->SW_timer);
765 tdm_display_unlock(private_vblank->dpy);
768 tdm_output_remove_change_handler(private_vblank->output,
769 _tdm_vblank_cb_output_change, private_vblank);
771 _tdm_vblank_free_HW_wait(private_vblank, 0, 0);
773 if (!LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
775 const char *proc_name;
776 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
777 VER("TDM SW vblank destroyed forcely!! (pid: %u, name: %s)", pid, proc_name);
780 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
782 _tdm_vblank_valid_list_del(&w->valid_link);
786 if (private_vblank->timeout_timer) {
787 tdm_display_lock(private_vblank->dpy);
788 tdm_event_loop_source_remove(private_vblank->timeout_timer);
789 tdm_display_unlock(private_vblank->dpy);
794 free(private_vblank);
798 tdm_vblank_get_client_pid(tdm_vblank *vblank, pid_t *pid)
800 tdm_private_vblank *private_vblank = vblank;
801 struct wl_client *client;
803 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
804 TDM_RETURN_VAL_IF_FAIL(pid != NULL, TDM_ERROR_INVALID_PARAMETER);
806 if (!private_vblank->resource) {
808 return TDM_ERROR_NONE;
811 client = wl_resource_get_client(private_vblank->resource);
814 return TDM_ERROR_NONE;
817 wl_client_get_credentials(client, pid, NULL, NULL);
819 return TDM_ERROR_NONE;
823 tdm_vblank_set_name(tdm_vblank *vblank, const char *name)
825 tdm_private_vblank *private_vblank = vblank;
827 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
830 name = TDM_VBLANK_DEFAULT_NAME;
832 strncpy(private_vblank->name, name, TDM_NAME_LEN - 1);
833 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
835 VIN("name(%s)", name);
837 return TDM_ERROR_NONE;
841 tdm_vblank_get_name(tdm_vblank *vblank, const char **name)
843 tdm_private_vblank *private_vblank = vblank;
845 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
846 TDM_RETURN_VAL_IF_FAIL(name != NULL, TDM_ERROR_INVALID_PARAMETER);
848 *name = (const char*)private_vblank->name;
850 return TDM_ERROR_NONE;
854 tdm_vblank_set_fps(tdm_vblank *vblank, unsigned int fps)
856 tdm_private_vblank *private_vblank = vblank;
858 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
859 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
861 if (private_vblank->fps_fixed) {
862 VIN("fps(%d) can't be changed", private_vblank->fps);
863 return TDM_ERROR_NONE;
866 private_vblank->fps_changeable = 0;
868 if (private_vblank->fps == fps)
869 return TDM_ERROR_NONE;
871 private_vblank->fps = fps;
872 private_vblank->check_HW_or_SW = 1;
874 VIN("fps(%d) changed", fps);
876 return TDM_ERROR_NONE;
880 tdm_vblank_get_fps(tdm_vblank *vblank, unsigned int *fps)
882 tdm_private_vblank *private_vblank = vblank;
884 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
885 TDM_RETURN_VAL_IF_FAIL(fps != NULL, TDM_ERROR_INVALID_PARAMETER);
887 *fps = private_vblank->fps;
889 return TDM_ERROR_NONE;
893 tdm_vblank_set_fixed_fps(tdm_vblank *vblank, unsigned int fps)
895 tdm_private_vblank *private_vblank = vblank;
897 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
898 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
900 private_vblank->fps_changeable = 0;
901 private_vblank->fps_fixed = 1;
903 if (private_vblank->fps == fps)
904 return TDM_ERROR_NONE;
906 private_vblank->fps = fps;
907 private_vblank->check_HW_or_SW = 1;
909 VIN("fps(%d) fixed", fps);
911 return TDM_ERROR_NONE;
915 tdm_vblank_ignore_global_fps(tdm_vblank *vblank, unsigned int ignore)
917 tdm_private_vblank *private_vblank = vblank;
919 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
921 if (private_vblank->ignore_global_fps == ignore)
922 return TDM_ERROR_NONE;
924 private_vblank->ignore_global_fps = ignore;
925 private_vblank->check_HW_or_SW = 1;
927 VIN("ignore_global_fps(%d)", private_vblank->ignore_global_fps);
929 return TDM_ERROR_NONE;
933 tdm_vblank_set_offset(tdm_vblank *vblank, int offset)
935 tdm_private_vblank *private_vblank = vblank;
937 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
939 if (private_vblank->offset == offset)
940 return TDM_ERROR_NONE;
942 private_vblank->offset = offset;
943 private_vblank->check_HW_or_SW = 1;
945 VIN("offset(%d)", private_vblank->offset);
947 return TDM_ERROR_NONE;
951 tdm_vblank_get_offset(tdm_vblank *vblank, int *offset)
953 tdm_private_vblank *private_vblank = vblank;
955 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
956 TDM_RETURN_VAL_IF_FAIL(offset != NULL, TDM_ERROR_INVALID_PARAMETER);
958 *offset = private_vblank->offset;
960 return TDM_ERROR_NONE;
964 tdm_vblank_set_enable_fake(tdm_vblank *vblank, unsigned int enable_fake)
966 tdm_private_vblank *private_vblank = vblank;
968 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
970 if (private_vblank->enable_fake == enable_fake)
971 return TDM_ERROR_NONE;
973 private_vblank->enable_fake = enable_fake;
975 VIN("enable_fake(%d)", private_vblank->enable_fake);
977 return TDM_ERROR_NONE;
981 tdm_vblank_get_enable_fake(tdm_vblank *vblank, unsigned int *enable_fake)
983 tdm_private_vblank *private_vblank = vblank;
985 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
986 TDM_RETURN_VAL_IF_FAIL(enable_fake != NULL, TDM_ERROR_INVALID_PARAMETER);
988 *enable_fake = private_vblank->enable_fake;
990 return TDM_ERROR_NONE;
994 _tdm_vblank_timeout_timer_cb(void *user_data)
996 tdm_private_vblank *private_vblank = user_data;
997 tdm_vblank_wait_info *w = NULL;
999 const char *proc_name;
1001 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_OPERATION_FAILED);
1003 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
1005 VER("TDM vblank TIMEOUT!! (pid: %u, name: %s)", pid, proc_name);
1006 VER("quotient(%u) last_seq(%u) last_time(%.6f)", private_vblank->quotient, private_vblank->last_seq, private_vblank->last_time);
1008 LIST_FOR_EACH_ENTRY(w, &private_vblank->HW_wait_list, link) {
1009 VER("wait_info(%p) req_time(%.6f) target_seq(%u) interval(%u) hw_interval(%d)",
1010 w, w->req_time, w->target_seq, w->interval, w->hw_interval);
1011 tdm_output_vblank_print_wait_information(private_vblank->output, w);
1014 LIST_FOR_EACH_ENTRY(w, &private_vblank->SW_wait_list, link) {
1015 VER("wait_info(%p) req_time(%.6f) target_time(%.6f) target_seq(%u) interval(%u)",
1016 w, w->req_time, w->target_time, w->target_seq, w->interval);
1019 return TDM_ERROR_NONE;
1023 _tdm_vblank_timeout_timer_update(tdm_private_vblank *private_vblank, int ms_delay)
1027 if (!private_vblank->timeout_timer) {
1028 private_vblank->timeout_timer =
1029 tdm_event_loop_add_timer_handler(private_vblank->dpy,
1030 _tdm_vblank_timeout_timer_cb,
1033 if (!private_vblank->timeout_timer) {
1034 VER("couldn't add timer");
1037 VIN("Create Timeout timer");
1040 ret = tdm_event_loop_source_timer_update(private_vblank->timeout_timer, ms_delay);
1041 if (ret != TDM_ERROR_NONE) {
1042 VER("couldn't update timer");
1047 VDB("timeout timer updated");
1049 VDB("timeout timer disabled");
1053 _tdm_vblank_sw_timer_update(tdm_private_vblank *private_vblank)
1055 tdm_vblank_wait_info *first_wait_info = NULL;
1056 double curr, target;
1060 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1061 VER("no wait_info");
1062 return TDM_ERROR_OPERATION_FAILED;
1065 first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1066 curr = tdm_helper_get_time();
1067 target = first_wait_info->target_time;
1069 /* ms_delay should be more that 1 */
1073 ms_delay = ceil((target - curr) * 1000.0);
1078 if (ms_delay > 5000)
1079 VER("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1081 VDB("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1083 tdm_display_lock(private_vblank->dpy);
1085 if (!private_vblank->SW_timer) {
1086 private_vblank->SW_timer =
1087 tdm_event_loop_add_timer_handler(private_vblank->dpy,
1088 _tdm_vblank_cb_vblank_SW,
1091 if (!private_vblank->SW_timer) {
1092 tdm_display_unlock(private_vblank->dpy);
1093 VER("couldn't add timer");
1096 VIN("Create SW timer");
1099 private_vblank->last_interval = ms_delay;
1101 ret = tdm_event_loop_source_timer_update(private_vblank->SW_timer, ms_delay);
1102 if (ret != TDM_ERROR_NONE) {
1103 /* LCOV_EXCL_START */
1104 tdm_display_unlock(private_vblank->dpy);
1105 VER("couldn't update timer");
1107 /* LCOV_EXCL_STOP */
1110 tdm_display_unlock(private_vblank->dpy);
1112 return TDM_ERROR_NONE;
1116 _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
1117 unsigned int tv_sec, unsigned int tv_usec,
1120 tdm_vblank_wait_info *wait_info = user_data;
1121 tdm_private_vblank *private_vblank;
1123 if (!_tdm_vblank_check_valid_wait(wait_info)) {
1124 TDM_ERR("can't find wait(%p) from valid_wait_list", wait_info);
1128 private_vblank = wait_info->private_vblank;
1129 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
1131 if (!_tdm_vblank_find_wait(wait_info, &private_vblank->HW_wait_list)) {
1132 VER("can't find wait(%p)", wait_info);
1136 if (wait_info->type == VBLANK_TYPE_HW_SW) {
1139 LIST_DEL(&wait_info->link);
1141 /* kernel sends the wrong time of first vblank event. and the time of
1142 * second vblank is correct.
1144 wait_info->target_time = TDM_TIME(tv_sec, tv_usec);
1145 wait_info->target_time += (((double)private_vblank->offset) / 1000.0);
1147 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1149 ret = _tdm_vblank_sw_timer_update(private_vblank);
1151 /* wait_info will be freed in _tdm_vblank_cb_vblank_SW() */
1152 if (ret == TDM_ERROR_NONE) {
1153 VIN("wait(%p) SW timer", wait_info);
1157 VER("couldn't update sw timer");
1160 tdm_display_lock(private_vblank->dpy);
1161 _tdm_vblank_timeout_timer_update(private_vblank, 0);
1162 tdm_display_unlock(private_vblank->dpy);
1164 LIST_DEL(&wait_info->link);
1165 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1167 /* tv_sec & tv_usec shouldn't be zero. But sometimes they are zero in some hardware.
1168 * We need to prohibit that last_time becomes zero because "last_time == 0" means
1169 * that a tdm_vblank object is just created and doesn't have the first vblank event.
1170 * If last_time becomes 0, it would make issue.
1172 if (tv_sec == 0 && tv_usec == 0) {
1173 double curr = tdm_helper_get_time();
1174 tv_sec = TDM_TIME_SEC(curr);
1175 tv_usec = TDM_TIME_USEC(curr);
1178 private_vblank->last_seq = wait_info->target_seq;
1179 private_vblank->last_time = TDM_TIME(tv_sec, tv_usec);
1181 VDB("wait(%p) last(%.6f) sequence(%u) done", wait_info, private_vblank->last_time, wait_info->target_seq);
1183 if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1184 TDM_TRACE_ASYNC_END((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1186 if (wait_info->func)
1187 wait_info->func(private_vblank, TDM_ERROR_NONE, wait_info->target_seq,
1188 tv_sec, tv_usec, wait_info->user_data);
1194 _tdm_vblank_wait_HW(tdm_vblank_wait_info *wait_info)
1196 tdm_private_vblank *private_vblank = wait_info->private_vblank;
1200 if (private_vblank->last_type != VBLANK_EVENT_TYPE_HW) {
1201 VIN("Use HW vblank");
1202 private_vblank->last_type = VBLANK_EVENT_TYPE_HW;
1205 _tdm_vblank_insert_wait(wait_info, &private_vblank->HW_wait_list);
1207 if (private_vblank->last_time == 0) {
1208 hw_interval = wait_info->interval * private_vblank->quotient;
1210 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1211 private_vblank->last_seq = 0;
1212 private_vblank->last_time = tdm_helper_get_time();
1214 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1215 wait_info->target_seq = 1;
1217 VDB("wait(%p) last(%.6f) hw_itvl(%d) targ_seq(%u)",
1218 wait_info, private_vblank->last_time, hw_interval, wait_info->target_seq);
1220 double last, prev, req, curr, target;
1223 last = private_vblank->last_time;
1224 req = wait_info->req_time;
1226 /* make sure that req time is bigger than last. */
1230 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1231 prev = last + private_vblank->vblank_gap * skip;
1233 curr = tdm_helper_get_time();
1235 while (target < curr)
1236 target += (private_vblank->vblank_gap * wait_info->interval);
1238 hw_interval = (unsigned int)((target - curr) / private_vblank->HW_vblank_gap + TDM_TIME_MARGIN) + 1;
1240 wait_info->target_seq = private_vblank->last_seq;
1241 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1243 if (hw_interval > 300)
1244 VER("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1245 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1246 skip, hw_interval, wait_info->target_seq);
1248 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1249 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1250 skip, hw_interval, wait_info->target_seq);
1253 private_vblank->last_interval = hw_interval;
1254 wait_info->hw_interval = hw_interval;
1256 if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1257 TDM_TRACE_ASYNC_BEGIN((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1259 if (private_vblank->add_front)
1260 ret = tdm_output_wait_vblank_add_front(private_vblank->output, hw_interval, 0,
1261 _tdm_vblank_cb_vblank_HW, wait_info);
1263 ret = tdm_output_wait_vblank(private_vblank->output, hw_interval, 0,
1264 _tdm_vblank_cb_vblank_HW, wait_info);
1266 if (ret != TDM_ERROR_NONE) {
1267 LIST_DEL(&wait_info->link);
1271 VDB("wait(%p) waiting", wait_info);
1273 return TDM_ERROR_NONE;
1277 _tdm_vblank_cb_vblank_SW(void *user_data)
1279 tdm_private_vblank *private_vblank = user_data;
1281 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(private_vblank), TDM_ERROR_OPERATION_FAILED);
1283 return tdm_vblank_cb_vblank_SW(private_vblank, 0);
1287 tdm_vblank_cb_vblank_SW(tdm_vblank *vblank, double vblank_stamp)
1289 tdm_private_vblank *private_vblank;
1290 tdm_vblank_wait_info *first_wait_info = NULL, *w = NULL, *ww = NULL;
1292 TDM_RETURN_VAL_IF_FAIL(vblank || vblank_stamp > 0, TDM_ERROR_INVALID_PARAMETER);
1295 private_vblank = vblank;
1297 private_vblank = _tdm_vblank_find(vblank_stamp);
1298 if (!private_vblank) {
1299 TDM_ERR("can't find vblank(%.0f) from valid_list", vblank_stamp);
1300 return TDM_ERROR_NONE;
1304 if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1305 tdm_thread_cb_vblank_sw vblank_sw;
1306 tdm_private_display *private_display = private_vblank->dpy;
1309 vblank_sw.base.type = TDM_THREAD_CB_VBLANK_SW;
1310 vblank_sw.base.length = sizeof vblank_sw;
1311 vblank_sw.vblank_stamp = private_vblank->stamp;
1313 ret = tdm_thread_send_cb(private_display->private_loop, &vblank_sw.base);
1314 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
1316 return TDM_ERROR_NONE;
1319 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1320 VER("no wait_info");
1321 return TDM_ERROR_OPERATION_FAILED;
1324 if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list))
1325 TDM_NEVER_GET_HERE();
1327 first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1328 TDM_RETURN_VAL_IF_FAIL(first_wait_info != NULL, TDM_ERROR_OPERATION_FAILED);
1330 _tdm_vblank_timeout_timer_update(private_vblank, 0);
1332 if (private_vblank->last_seq >= first_wait_info->target_seq)
1333 TDM_ERR("last_seq(%u) target_seq(%u)", private_vblank->last_seq, first_wait_info->target_seq);
1335 private_vblank->last_seq = first_wait_info->target_seq;
1336 private_vblank->last_time = first_wait_info->target_time;
1338 VDB("wait(%p) last(%.6f) sequence(%u) done", first_wait_info, private_vblank->last_time, first_wait_info->target_seq);
1340 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
1341 if (w->target_time != first_wait_info->target_time)
1345 _tdm_vblank_valid_list_del(&w->valid_link);
1348 tdm_display_unlock(private_vblank->dpy);
1349 w->func(private_vblank, TDM_ERROR_NONE, w->target_seq,
1350 TDM_TIME_SEC(w->target_time), TDM_TIME_USEC(w->target_time),
1352 tdm_display_lock(private_vblank->dpy);
1358 return TDM_ERROR_NONE;
1362 _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info)
1364 tdm_private_vblank *private_vblank = wait_info->private_vblank;
1367 if (private_vblank->last_type != VBLANK_EVENT_TYPE_SW) {
1368 VIN("Use SW vblank");
1369 private_vblank->last_type = VBLANK_EVENT_TYPE_SW;
1372 if (private_vblank->last_time == 0) {
1373 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1374 private_vblank->last_seq = 0;
1375 private_vblank->last_time = tdm_helper_get_time();
1377 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1378 wait_info->target_seq = 1;
1379 wait_info->target_time = private_vblank->last_time + 0.001;
1381 VDB("wait(%p) last(%.6f) target(%.6f) target sequence(%u)",
1382 wait_info, private_vblank->last_time, wait_info->target_time, wait_info->target_seq);
1384 double last, prev, req, curr, target;
1387 last = private_vblank->last_time;
1388 req = wait_info->req_time;
1390 /* make sure that req time is bigger than last. */
1394 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1395 prev = last + private_vblank->vblank_gap * skip;
1397 curr = tdm_helper_get_time();
1398 target = prev + private_vblank->vblank_gap * wait_info->interval;
1400 while (target < curr)
1401 target += private_vblank->vblank_gap;
1403 wait_info->target_seq = private_vblank->last_seq;
1404 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1406 wait_info->target_time = target;
1408 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) targ_seq(%u)",
1409 wait_info, last, req - last, prev - last, curr - last,
1410 target, target - last, skip, wait_info->target_seq);
1413 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1415 ret = _tdm_vblank_sw_timer_update(private_vblank);
1416 if (ret != TDM_ERROR_NONE) {
1417 /* LCOV_EXCL_START */
1418 LIST_DEL(&wait_info->link);
1419 VER("couldn't update sw timer");
1421 /* LCOV_EXCL_STOP */
1424 return TDM_ERROR_NONE;
1428 tdm_vblank_wait(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1429 unsigned int interval, tdm_vblank_handler func, void *user_data)
1431 tdm_private_vblank *private_vblank = vblank;
1432 tdm_vblank_wait_info *wait_info;
1433 tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1437 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1438 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1440 if (private_vblank->in_create_handler) {
1441 TDM_ERR("NOT allowed to be called in a create handler");
1442 return TDM_ERROR_BAD_REQUEST;
1445 if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1446 TDM_ERR("SHOULD be called in the owner thread(%d)", (int)private_vblank->owner_tid);
1447 return TDM_ERROR_BAD_REQUEST;
1450 tdm_output_get_dpms(private_vblank->output, &dpms);
1452 if (!private_vblank->enable_fake) {
1453 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
1454 VER("can't wait a vblank: output disconnected");
1455 return TDM_ERROR_OUTPUT_DISCONNECTED;
1457 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms)) {
1458 VER("can't wait a vblank: DPMS %s", tdm_dpms_str(dpms));
1459 return TDM_ERROR_DPMS_OFF;
1463 wait_info = calloc(1, sizeof * wait_info);
1465 /* LCOV_EXCL_START */
1466 VER("alloc failed");
1467 return TDM_ERROR_OUT_OF_MEMORY;
1468 /* LCOV_EXCL_STOP */
1471 /* set request time to current time if 0. This function seems to be called in server side. */
1472 if (req_sec == 0 && req_usec == 0) {
1473 double curr = tdm_helper_get_time();
1474 req_sec = TDM_TIME_SEC(curr);
1475 req_usec = TDM_TIME_USEC(curr);
1478 LIST_INITHEAD(&wait_info->link);
1480 _tdm_vblank_valid_list_add(&wait_info->valid_link, &valid_wait_list);
1482 wait_info->stamp = ++stamp;
1483 wait_info->req_time = TDM_TIME(req_sec, req_usec);
1484 wait_info->interval = interval;
1485 wait_info->func = func;
1486 wait_info->user_data = user_data;
1487 wait_info->private_vblank = private_vblank;
1489 if (private_vblank->ignore_global_fps ||
1490 vblank_global_fps == 0 ||
1491 private_vblank->fps < vblank_global_fps)
1492 fps = private_vblank->fps;
1494 fps = vblank_global_fps;
1496 if (private_vblank->check_HW_or_SW) {
1497 private_vblank->check_HW_or_SW = 0;
1498 private_vblank->vblank_gap = 1.0 / fps;
1499 private_vblank->quotient = private_vblank->vrefresh / fps;
1502 /* 1) if fps != factor of vrefresh, SW timer
1503 * 2) if fps == factor of vrefresh && dpms == off, SW timer (Fake HW vblank)
1504 * 2) if fps == factor of vrefresh && dpms == on && offset == 0, HW vblank
1505 * 3) if fps == factor of vrefresh && dpms == on && offset != 0, HW vblank + SW timer
1506 * In case of 1), we really don't need to align with HW vblank.
1508 if (private_vblank->vrefresh % fps)
1509 wait_info->type = VBLANK_TYPE_SW;
1510 else if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms) ||
1511 private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED)
1512 wait_info->type = VBLANK_TYPE_SW_FAKE;
1513 else if (private_vblank->offset == 0)
1514 wait_info->type = VBLANK_TYPE_HW;
1516 wait_info->type = VBLANK_TYPE_HW_SW;
1518 if (wait_info->type == VBLANK_TYPE_SW || wait_info->type == VBLANK_TYPE_SW_FAKE) {
1519 ret = _tdm_vblank_wait_SW(wait_info);
1520 if (ret != TDM_ERROR_NONE)
1521 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1523 ret = _tdm_vblank_wait_HW(wait_info);
1524 if (ret != TDM_ERROR_NONE)
1525 TDM_ERR("_tdm_vblank_wait_HW failed: ret(%d)", ret);
1527 if (ret == TDM_ERROR_OUTPUT_DISCONNECTED || ret == TDM_ERROR_DPMS_OFF) {
1528 ret = _tdm_vblank_wait_SW(wait_info);
1529 if (ret != TDM_ERROR_NONE)
1530 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1534 if (ret != TDM_ERROR_NONE) {
1535 /* LCOV_EXCL_START */
1536 LIST_DEL(&wait_info->link);
1537 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1539 tdm_display_lock(private_vblank->dpy);
1540 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, wait_info);
1541 tdm_display_unlock(private_vblank->dpy);
1545 /* LCOV_EXCL_STOP */
1548 tdm_display_lock(private_vblank->dpy);
1549 _tdm_vblank_timeout_timer_update(private_vblank, 1000);
1550 tdm_display_unlock(private_vblank->dpy);
1552 return TDM_ERROR_NONE;
1556 tdm_vblank_wait_seq(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1557 unsigned int sequence, tdm_vblank_handler func, void *user_data)
1559 tdm_private_vblank *private_vblank = vblank;
1560 unsigned int interval;
1562 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1563 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1565 /* if the sequence of vblank reaches the max value, sequence can be 0. */
1567 if (private_vblank->last_seq == 0) {
1568 VWR("can't calculate interval with sequence(%u)", sequence);
1570 } else if (sequence > private_vblank->last_seq ||
1571 TDM_VBLANK_SEQ_REACHED_MAX(sequence, private_vblank->last_seq)) {
1572 double last, curr, seq_target;
1574 last = private_vblank->last_time;
1575 curr = tdm_helper_get_time();
1576 seq_target = last + private_vblank->vblank_gap * (sequence - private_vblank->last_seq);
1578 /* If target is old or too close(1ms) to current, we call the handler immediately.
1579 * 2ms? it seems too much.
1581 if (seq_target < curr) {
1582 func(vblank, TDM_ERROR_NONE, sequence,
1583 TDM_TIME_SEC(seq_target), TDM_TIME_USEC(seq_target),
1585 return TDM_ERROR_NONE;
1586 } else if ((seq_target - curr) < 0.001) { /* 1ms */
1587 func(vblank, TDM_ERROR_NONE, sequence,
1588 TDM_TIME_SEC(curr), TDM_TIME_USEC(curr),
1590 return TDM_ERROR_NONE;
1593 interval = (unsigned int)((seq_target - curr) / private_vblank->vblank_gap + TDM_TIME_MARGIN) + 1;
1595 /* this seems error. But we handle this like normal to avoid the unexpected error in cliend side */
1596 VER("sequence(%u) should be over the last sequence(%u)", sequence, private_vblank->last_seq);
1597 func(vblank, TDM_ERROR_NONE, private_vblank->last_seq,
1598 TDM_TIME_SEC(private_vblank->last_time), TDM_TIME_USEC(private_vblank->last_time),
1600 return TDM_ERROR_NONE;
1603 return tdm_vblank_wait(vblank, req_sec, req_usec, interval, func, user_data);
1606 /* LCOV_EXCL_START */
1608 tdm_vblank_set_add_front(tdm_vblank *vblank, unsigned int add_front)
1610 tdm_private_vblank *private_vblank = vblank;
1612 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1614 TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
1616 if (private_vblank->add_front == add_front)
1617 return TDM_ERROR_NONE;
1619 private_vblank->add_front = add_front;
1621 return TDM_ERROR_NONE;
1623 /* LCOV_EXCL_STOP */
1626 tdm_vblank_set_resource(tdm_vblank *vblank, struct wl_resource *resource)
1628 tdm_private_vblank *private_vblank = vblank;
1630 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1631 TDM_RETURN_VAL_IF_FAIL(private_vblank->resource == NULL, TDM_ERROR_OPERATION_FAILED);
1633 private_vblank->resource = resource;
1635 return TDM_ERROR_NONE;
1639 tdm_vblank_get_stamp(tdm_vblank *vblank)
1641 tdm_private_vblank *private_vblank = vblank;
1643 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1645 return private_vblank->stamp;
1649 _tdm_vblank_get_waiting_count(tdm_private_vblank *private_vblank)
1651 tdm_vblank_wait_info *wait_info = NULL;
1652 unsigned int count = 0;
1654 LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->HW_wait_list, link) {
1658 LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->SW_wait_list, link) {
1666 _tdm_vblank_get_client_information(tdm_private_vblank *private_vblank, pid_t *pid, const char **name)
1668 struct wl_client *client;
1670 if (!private_vblank->resource)
1673 client = wl_resource_get_client(private_vblank->resource);
1677 wl_client_get_credentials(client, pid, NULL, NULL);
1678 *name = tdm_server_get_client_name(*pid);
1688 /* LCOV_EXCL_START */
1690 tdm_vblank_get_vblank_list_information(tdm_display *dpy, char *reply, int *len)
1692 tdm_private_vblank *v = NULL;
1693 tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1694 tdm_output *output = tdm_display_get_output(dpy, 0, NULL);
1697 tdm_output_get_dpms(output, &dpms);
1699 TDM_SNPRINTF(reply, len, "[Client Vblank List]\n");
1700 TDM_SNPRINTF(reply, len, "* DPMS: %s\n", tdm_dpms_str(dpms));
1701 TDM_SNPRINTF(reply, len, "* global fps: %u\n", vblank_global_fps);
1702 TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1703 TDM_SNPRINTF(reply, len, "Name Type Wait Interval Sequence Fps Ignore Offset Fake Process\n");
1704 TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1706 pthread_mutex_lock(&valid_list_lock);
1707 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
1708 const char *proc_name = NULL;
1712 _tdm_vblank_get_client_information(v, &pid, &proc_name);
1714 count = _tdm_vblank_get_waiting_count(v);
1716 TDM_SNPRINTF(reply, len, "%-8s(%p) ", v->name, v);
1717 TDM_SNPRINTF(reply, len, "%-4s ", (v->last_type == VBLANK_EVENT_TYPE_HW) ? "HW" : "SW");
1718 TDM_SNPRINTF(reply, len, "%-4s ", (count > 0) ? "O" : " ");
1719 TDM_SNPRINTF(reply, len, "%-8d ", v->last_interval);
1720 TDM_SNPRINTF(reply, len, "%-8u ", v->last_seq);
1721 TDM_SNPRINTF(reply, len, "%-3u ", v->fps);
1722 TDM_SNPRINTF(reply, len, "%-6u ", v->ignore_global_fps);
1723 TDM_SNPRINTF(reply, len, "%-6d ", v->offset);
1724 TDM_SNPRINTF(reply, len, "%-4u ", v->enable_fake);
1725 TDM_SNPRINTF(reply, len, "%s(pid:%d)\n", (proc_name) ? proc_name : "Unknown", pid);
1727 pthread_mutex_unlock(&valid_list_lock);
1729 TDM_SNPRINTF(reply, len, "\n");
1731 /* LCOV_EXCL_STOP */