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_enable_global_fps(unsigned int enable, unsigned int fps)
495 tdm_private_vblank *v = NULL;
498 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
500 TDM_INFO("global fps: %s fps(%d)", (enable) ? "enabled" : "disabled", fps);
502 pthread_mutex_lock(&valid_list_lock);
504 vblank_global_fps = (enable) ? fps : 0;
506 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
507 /* skip if vblank is created in server side */
511 v->check_HW_or_SW = 1;
513 pthread_mutex_unlock(&valid_list_lock);
515 return TDM_ERROR_NONE;
519 tdm_vblank_cb_vblank_create(tdm_vblank *vblank, double vblank_stamp)
521 tdm_private_vblank *private_vblank;
522 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
524 TDM_RETURN_VAL_IF_FAIL(vblank || vblank_stamp > 0, TDM_ERROR_INVALID_PARAMETER);
527 private_vblank = vblank;
529 private_vblank = _tdm_vblank_find(vblank_stamp);
530 if (!private_vblank) {
531 TDM_DBG("can't find vblank(%.0f) from valid_list", vblank_stamp);
532 return TDM_ERROR_NONE;
536 if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
537 tdm_thread_cb_vblank_create vblank_create;
538 tdm_private_display *private_display = private_vblank->dpy;
541 vblank_create.base.type = TDM_THREAD_CB_VBLANK_CREATE;
542 vblank_create.base.length = sizeof vblank_create;
543 vblank_create.vblank_stamp = private_vblank->stamp;
545 ret = tdm_thread_send_cb(private_display->private_loop, &vblank_create.base);
546 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
548 return TDM_ERROR_NONE;
551 LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
552 private_vblank->in_create_handler = 1;
553 ch_info->func(private_vblank, ch_info->user_data);
554 private_vblank->in_create_handler = 0;
557 return TDM_ERROR_NONE;
561 tdm_vblank_add_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
563 tdm_vblank_create_handler_info *ch_info;
565 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
567 /* we don't allow adding a create handler in sub-thread because tdm_vblank_create()
568 * can be called in both threads and tdm_thread_send_cb supports only one-way
571 if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
572 TDM_ERR("add_create_handler should be called in main thread");
573 return TDM_ERROR_BAD_REQUEST;
576 ch_info = calloc(1, sizeof *ch_info);
577 TDM_RETURN_VAL_IF_FAIL(ch_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
579 ch_info->func = func;
580 ch_info->user_data = user_data;
582 LIST_ADDTAIL(&ch_info->link, &create_handler_list);
584 return TDM_ERROR_NONE;
588 tdm_vblank_remove_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
590 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
592 /* we don't allow adding a create handler in sub-thread because tdm_vblank_create()
593 * can be called in both threads and tdm_thread_send_cb supports only one-way
596 if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
597 TDM_ERR("remove_create_handler should be called in main thread");
601 LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
602 if (ch_info->func != func && ch_info->user_data != user_data)
605 LIST_DEL(&ch_info->link);
612 tdm_vblank_init(tdm_display *dpy)
614 if (vblank_list_inited)
615 return TDM_ERROR_NONE;
617 if (pthread_mutex_init(&valid_list_lock, NULL)) {
618 TDM_ERR("mutex init failed: %m");
619 return TDM_ERROR_OUT_OF_MEMORY;
622 LIST_INITHEAD(&valid_vblank_list);
623 LIST_INITHEAD(&valid_wait_list);
624 LIST_INITHEAD(&create_handler_list);
626 vblank_list_inited = 1;
628 return TDM_ERROR_NONE;
632 tdm_vblank_deinit(tdm_display *dpy)
634 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
636 if (!vblank_list_inited)
639 if (!LIST_IS_EMPTY(&valid_vblank_list))
640 TDM_NEVER_GET_HERE();
642 if (!LIST_IS_EMPTY(&valid_wait_list))
643 TDM_NEVER_GET_HERE();
645 LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
646 LIST_DEL(&ch_info->link);
650 pthread_mutex_destroy(&valid_list_lock);
652 vblank_list_inited = 0;
656 tdm_vblank_create(tdm_display *dpy, tdm_output *output, tdm_error *error)
658 tdm_private_vblank *private_vblank;
661 TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_display_is_valid(dpy), TDM_ERROR_INVALID_PARAMETER, NULL);
662 TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_output_is_valid(output), TDM_ERROR_INVALID_PARAMETER, NULL);
665 *error = TDM_ERROR_NONE;
667 private_vblank = calloc(1, sizeof * private_vblank);
668 if (!private_vblank) {
669 /* LCOV_EXCL_START */
671 *error = TDM_ERROR_OUT_OF_MEMORY;
672 TDM_ERR("alloc failed");
677 tdm_output_add_change_handler(output, _tdm_vblank_cb_output_change, private_vblank);
679 private_vblank->stamp = ++stamp;
680 private_vblank->owner_tid = syscall(SYS_gettid);
681 private_vblank->dpy = dpy;
682 private_vblank->output = output;
683 private_vblank->check_HW_or_SW = 1;
684 private_vblank->fps_changeable = 1;
685 private_vblank->last_interval = -1;
687 _tdm_vblank_update_output_info(private_vblank);
689 strncpy(private_vblank->name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN - 1);
690 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
692 LIST_INITHEAD(&private_vblank->HW_wait_list);
693 LIST_INITHEAD(&private_vblank->SW_wait_list);
695 _tdm_vblank_valid_list_add(&private_vblank->valid_link, &valid_vblank_list);
697 VIN("created. vrefresh(%d) connection(%d)",
698 private_vblank->vrefresh, private_vblank->connection);
700 tdm_display_lock(private_vblank->dpy);
701 tdm_vblank_cb_vblank_create(NULL, private_vblank->stamp);
702 tdm_display_unlock(private_vblank->dpy);
704 return (tdm_vblank *)private_vblank;
708 tdm_vblank_destroy(tdm_vblank *vblank)
710 tdm_private_vblank *private_vblank = vblank;
711 tdm_vblank_wait_info *w = NULL, *ww = NULL;
713 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(vblank));
715 if (private_vblank->in_create_handler) {
716 TDM_ERR("NOT allowed to be called in a create handler");
720 _tdm_vblank_valid_list_del(&private_vblank->valid_link);
722 if (private_vblank->SW_timer) {
723 tdm_display_lock(private_vblank->dpy);
724 tdm_event_loop_source_remove(private_vblank->SW_timer);
725 tdm_display_unlock(private_vblank->dpy);
728 tdm_output_remove_change_handler(private_vblank->output,
729 _tdm_vblank_cb_output_change, private_vblank);
731 _tdm_vblank_free_HW_wait(private_vblank, 0, 0);
733 if (!LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
735 const char *proc_name;
736 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
737 VER("TDM SW vblank destroyed forcely!! (pid: %u, name: %s)", pid, proc_name);
740 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
742 _tdm_vblank_valid_list_del(&w->valid_link);
746 if (private_vblank->timeout_timer) {
747 tdm_display_lock(private_vblank->dpy);
748 tdm_event_loop_source_remove(private_vblank->timeout_timer);
749 tdm_display_unlock(private_vblank->dpy);
754 free(private_vblank);
758 tdm_vblank_get_client_pid(tdm_vblank *vblank, pid_t *pid)
760 tdm_private_vblank *private_vblank = vblank;
761 struct wl_client *client;
763 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
764 TDM_RETURN_VAL_IF_FAIL(pid != NULL, TDM_ERROR_INVALID_PARAMETER);
766 if (!private_vblank->resource) {
768 return TDM_ERROR_NONE;
771 client = wl_resource_get_client(private_vblank->resource);
774 return TDM_ERROR_NONE;
777 wl_client_get_credentials(client, pid, NULL, NULL);
779 return TDM_ERROR_NONE;
783 tdm_vblank_set_name(tdm_vblank *vblank, const char *name)
785 tdm_private_vblank *private_vblank = vblank;
787 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
790 name = TDM_VBLANK_DEFAULT_NAME;
792 strncpy(private_vblank->name, name, TDM_NAME_LEN - 1);
793 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
795 VIN("name(%s)", name);
797 return TDM_ERROR_NONE;
801 tdm_vblank_get_name(tdm_vblank *vblank, const char **name)
803 tdm_private_vblank *private_vblank = vblank;
805 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
806 TDM_RETURN_VAL_IF_FAIL(name != NULL, TDM_ERROR_INVALID_PARAMETER);
808 *name = (const char*)private_vblank->name;
810 return TDM_ERROR_NONE;
814 tdm_vblank_set_fps(tdm_vblank *vblank, unsigned int fps)
816 tdm_private_vblank *private_vblank = vblank;
818 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
819 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
821 if (private_vblank->fps_fixed) {
822 VIN("fps(%d) can't be changed", private_vblank->fps);
823 return TDM_ERROR_NONE;
826 private_vblank->fps_changeable = 0;
828 if (private_vblank->fps == fps)
829 return TDM_ERROR_NONE;
831 private_vblank->fps = fps;
832 private_vblank->check_HW_or_SW = 1;
834 VIN("fps(%d) changed", fps);
836 return TDM_ERROR_NONE;
840 tdm_vblank_get_fps(tdm_vblank *vblank, unsigned int *fps)
842 tdm_private_vblank *private_vblank = vblank;
844 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
845 TDM_RETURN_VAL_IF_FAIL(fps != NULL, TDM_ERROR_INVALID_PARAMETER);
847 *fps = private_vblank->fps;
849 return TDM_ERROR_NONE;
853 tdm_vblank_set_fixed_fps(tdm_vblank *vblank, unsigned int fps)
855 tdm_private_vblank *private_vblank = vblank;
857 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
858 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
860 private_vblank->fps_changeable = 0;
861 private_vblank->fps_fixed = 1;
863 if (private_vblank->fps == fps)
864 return TDM_ERROR_NONE;
866 private_vblank->fps = fps;
867 private_vblank->check_HW_or_SW = 1;
869 VIN("fps(%d) fixed", fps);
871 return TDM_ERROR_NONE;
875 tdm_vblank_ignore_global_fps(tdm_vblank *vblank, unsigned int ignore)
877 tdm_private_vblank *private_vblank = vblank;
879 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
881 if (private_vblank->ignore_global_fps == ignore)
882 return TDM_ERROR_NONE;
884 private_vblank->ignore_global_fps = ignore;
885 private_vblank->check_HW_or_SW = 1;
887 VIN("ignore_global_fps(%d)", private_vblank->ignore_global_fps);
889 return TDM_ERROR_NONE;
893 tdm_vblank_set_offset(tdm_vblank *vblank, int offset)
895 tdm_private_vblank *private_vblank = vblank;
897 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
899 if (private_vblank->offset == offset)
900 return TDM_ERROR_NONE;
902 private_vblank->offset = offset;
903 private_vblank->check_HW_or_SW = 1;
905 VIN("offset(%d)", private_vblank->offset);
907 return TDM_ERROR_NONE;
911 tdm_vblank_get_offset(tdm_vblank *vblank, int *offset)
913 tdm_private_vblank *private_vblank = vblank;
915 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
916 TDM_RETURN_VAL_IF_FAIL(offset != NULL, TDM_ERROR_INVALID_PARAMETER);
918 *offset = private_vblank->offset;
920 return TDM_ERROR_NONE;
924 tdm_vblank_set_enable_fake(tdm_vblank *vblank, unsigned int enable_fake)
926 tdm_private_vblank *private_vblank = vblank;
928 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
930 if (private_vblank->enable_fake == enable_fake)
931 return TDM_ERROR_NONE;
933 private_vblank->enable_fake = enable_fake;
935 VIN("enable_fake(%d)", private_vblank->enable_fake);
937 return TDM_ERROR_NONE;
941 tdm_vblank_get_enable_fake(tdm_vblank *vblank, unsigned int *enable_fake)
943 tdm_private_vblank *private_vblank = vblank;
945 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
946 TDM_RETURN_VAL_IF_FAIL(enable_fake != NULL, TDM_ERROR_INVALID_PARAMETER);
948 *enable_fake = private_vblank->enable_fake;
950 return TDM_ERROR_NONE;
954 _tdm_vblank_timeout_timer_cb(void *user_data)
956 tdm_private_vblank *private_vblank = user_data;
957 tdm_vblank_wait_info *w = NULL;
959 const char *proc_name;
961 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_OPERATION_FAILED);
963 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
965 VER("TDM vblank TIMEOUT!! (pid: %u, name: %s)", pid, proc_name);
966 VER("quotient(%u) last_seq(%u) last_time(%.6f)", private_vblank->quotient, private_vblank->last_seq, private_vblank->last_time);
968 LIST_FOR_EACH_ENTRY(w, &private_vblank->HW_wait_list, link) {
969 VER("wait_info(%p) req_time(%.6f) target_seq(%u) interval(%u) hw_interval(%d)",
970 w, w->req_time, w->target_seq, w->interval, w->hw_interval);
971 tdm_output_vblank_print_wait_information(private_vblank->output, w);
974 LIST_FOR_EACH_ENTRY(w, &private_vblank->SW_wait_list, link) {
975 VER("wait_info(%p) req_time(%.6f) target_time(%.6f) target_seq(%u) interval(%u)",
976 w, w->req_time, w->target_time, w->target_seq, w->interval);
979 return TDM_ERROR_NONE;
983 _tdm_vblank_timeout_timer_update(tdm_private_vblank *private_vblank, int ms_delay)
987 if (!private_vblank->timeout_timer) {
988 private_vblank->timeout_timer =
989 tdm_event_loop_add_timer_handler(private_vblank->dpy,
990 _tdm_vblank_timeout_timer_cb,
993 if (!private_vblank->timeout_timer) {
994 VER("couldn't add timer");
997 VIN("Create Timeout timer");
1000 ret = tdm_event_loop_source_timer_update(private_vblank->timeout_timer, ms_delay);
1001 if (ret != TDM_ERROR_NONE) {
1002 VER("couldn't update timer");
1007 VDB("timeout timer updated");
1009 VDB("timeout timer disabled");
1013 _tdm_vblank_sw_timer_update(tdm_private_vblank *private_vblank)
1015 tdm_vblank_wait_info *first_wait_info = NULL;
1016 double curr, target;
1020 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1021 VER("no wait_info");
1022 return TDM_ERROR_OPERATION_FAILED;
1025 first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1026 curr = tdm_helper_get_time();
1027 target = first_wait_info->target_time;
1029 /* ms_delay should be more that 1 */
1033 ms_delay = ceil((target - curr) * 1000.0);
1038 if (ms_delay > 5000)
1039 VER("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1041 VDB("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1043 tdm_display_lock(private_vblank->dpy);
1045 if (!private_vblank->SW_timer) {
1046 private_vblank->SW_timer =
1047 tdm_event_loop_add_timer_handler(private_vblank->dpy,
1048 _tdm_vblank_cb_vblank_SW,
1051 if (!private_vblank->SW_timer) {
1052 tdm_display_unlock(private_vblank->dpy);
1053 VER("couldn't add timer");
1056 VIN("Create SW timer");
1059 private_vblank->last_interval = ms_delay;
1061 ret = tdm_event_loop_source_timer_update(private_vblank->SW_timer, ms_delay);
1062 if (ret != TDM_ERROR_NONE) {
1063 /* LCOV_EXCL_START */
1064 tdm_display_unlock(private_vblank->dpy);
1065 VER("couldn't update timer");
1067 /* LCOV_EXCL_STOP */
1070 tdm_display_unlock(private_vblank->dpy);
1072 return TDM_ERROR_NONE;
1076 _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
1077 unsigned int tv_sec, unsigned int tv_usec,
1080 tdm_vblank_wait_info *wait_info = user_data;
1081 tdm_private_vblank *private_vblank;
1083 if (!_tdm_vblank_check_valid_wait(wait_info)) {
1084 TDM_ERR("can't find wait(%p) from valid_wait_list", wait_info);
1088 private_vblank = wait_info->private_vblank;
1089 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
1091 if (!_tdm_vblank_find_wait(wait_info, &private_vblank->HW_wait_list)) {
1092 VER("can't find wait(%p)", wait_info);
1096 if (wait_info->type == VBLANK_TYPE_HW_SW) {
1099 LIST_DEL(&wait_info->link);
1101 /* kernel sends the wrong time of first vblank event. and the time of
1102 * second vblank is correct.
1104 wait_info->target_time = TDM_TIME(tv_sec, tv_usec);
1105 wait_info->target_time += (((double)private_vblank->offset) / 1000.0);
1107 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1109 ret = _tdm_vblank_sw_timer_update(private_vblank);
1111 /* wait_info will be freed in _tdm_vblank_cb_vblank_SW() */
1112 if (ret == TDM_ERROR_NONE) {
1113 VIN("wait(%p) SW timer", wait_info);
1117 VER("couldn't update sw timer");
1120 tdm_display_lock(private_vblank->dpy);
1121 _tdm_vblank_timeout_timer_update(private_vblank, 0);
1122 tdm_display_unlock(private_vblank->dpy);
1124 LIST_DEL(&wait_info->link);
1125 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1127 /* tv_sec & tv_usec shouldn't be zero. But sometimes they are zero in some hardware.
1128 * We need to prohibit that last_time becomes zero because "last_time == 0" means
1129 * that a tdm_vblank object is just created and doesn't have the first vblank event.
1130 * If last_time becomes 0, it would make issue.
1132 if (tv_sec == 0 && tv_usec == 0) {
1133 double curr = tdm_helper_get_time();
1134 tv_sec = TDM_TIME_SEC(curr);
1135 tv_usec = TDM_TIME_USEC(curr);
1138 private_vblank->last_seq = wait_info->target_seq;
1139 private_vblank->last_time = TDM_TIME(tv_sec, tv_usec);
1141 VDB("wait(%p) last(%.6f) sequence(%u) done", wait_info, private_vblank->last_time, wait_info->target_seq);
1143 if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1144 TDM_TRACE_ASYNC_END((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1146 if (wait_info->func)
1147 wait_info->func(private_vblank, TDM_ERROR_NONE, wait_info->target_seq,
1148 tv_sec, tv_usec, wait_info->user_data);
1154 _tdm_vblank_wait_HW(tdm_vblank_wait_info *wait_info)
1156 tdm_private_vblank *private_vblank = wait_info->private_vblank;
1160 if (private_vblank->last_type != VBLANK_EVENT_TYPE_HW) {
1161 VIN("Use HW vblank");
1162 private_vblank->last_type = VBLANK_EVENT_TYPE_HW;
1165 _tdm_vblank_insert_wait(wait_info, &private_vblank->HW_wait_list);
1167 if (private_vblank->last_time == 0) {
1168 hw_interval = wait_info->interval * private_vblank->quotient;
1170 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1171 private_vblank->last_seq = 0;
1172 private_vblank->last_time = tdm_helper_get_time();
1174 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1175 wait_info->target_seq = 1;
1177 VDB("wait(%p) last(%.6f) hw_itvl(%d) targ_seq(%u)",
1178 wait_info, private_vblank->last_time, hw_interval, wait_info->target_seq);
1180 double last, prev, req, curr, target;
1183 last = private_vblank->last_time;
1184 req = wait_info->req_time;
1186 /* make sure that req time is bigger than last. */
1190 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1191 prev = last + private_vblank->vblank_gap * skip;
1193 curr = tdm_helper_get_time();
1195 while (target < curr)
1196 target += (private_vblank->vblank_gap * wait_info->interval);
1198 hw_interval = (unsigned int)((target - curr) / private_vblank->HW_vblank_gap + TDM_TIME_MARGIN) + 1;
1200 wait_info->target_seq = private_vblank->last_seq;
1201 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1203 if (hw_interval > 300)
1204 VER("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1205 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1206 skip, hw_interval, wait_info->target_seq);
1208 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1209 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1210 skip, hw_interval, wait_info->target_seq);
1213 private_vblank->last_interval = hw_interval;
1214 wait_info->hw_interval = hw_interval;
1216 if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1217 TDM_TRACE_ASYNC_BEGIN((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1219 if (private_vblank->add_front)
1220 ret = tdm_output_wait_vblank_add_front(private_vblank->output, hw_interval, 0,
1221 _tdm_vblank_cb_vblank_HW, wait_info);
1223 ret = tdm_output_wait_vblank(private_vblank->output, hw_interval, 0,
1224 _tdm_vblank_cb_vblank_HW, wait_info);
1226 if (ret != TDM_ERROR_NONE) {
1227 LIST_DEL(&wait_info->link);
1231 VDB("wait(%p) waiting", wait_info);
1233 return TDM_ERROR_NONE;
1237 _tdm_vblank_cb_vblank_SW(void *user_data)
1239 tdm_private_vblank *private_vblank = user_data;
1241 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(private_vblank), TDM_ERROR_OPERATION_FAILED);
1243 return tdm_vblank_cb_vblank_SW(private_vblank, 0);
1247 tdm_vblank_cb_vblank_SW(tdm_vblank *vblank, double vblank_stamp)
1249 tdm_private_vblank *private_vblank;
1250 tdm_vblank_wait_info *first_wait_info = NULL, *w = NULL, *ww = NULL;
1252 TDM_RETURN_VAL_IF_FAIL(vblank || vblank_stamp > 0, TDM_ERROR_INVALID_PARAMETER);
1255 private_vblank = vblank;
1257 private_vblank = _tdm_vblank_find(vblank_stamp);
1258 if (!private_vblank) {
1259 TDM_ERR("can't find vblank(%.0f) from valid_list", vblank_stamp);
1260 return TDM_ERROR_NONE;
1264 if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1265 tdm_thread_cb_vblank_sw vblank_sw;
1266 tdm_private_display *private_display = private_vblank->dpy;
1269 vblank_sw.base.type = TDM_THREAD_CB_VBLANK_SW;
1270 vblank_sw.base.length = sizeof vblank_sw;
1271 vblank_sw.vblank_stamp = private_vblank->stamp;
1273 ret = tdm_thread_send_cb(private_display->private_loop, &vblank_sw.base);
1274 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
1276 return TDM_ERROR_NONE;
1279 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1280 VER("no wait_info");
1281 return TDM_ERROR_OPERATION_FAILED;
1284 if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list))
1285 TDM_NEVER_GET_HERE();
1287 first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1288 TDM_RETURN_VAL_IF_FAIL(first_wait_info != NULL, TDM_ERROR_OPERATION_FAILED);
1290 _tdm_vblank_timeout_timer_update(private_vblank, 0);
1292 if (private_vblank->last_seq >= first_wait_info->target_seq)
1293 TDM_ERR("last_seq(%u) target_seq(%u)", private_vblank->last_seq, first_wait_info->target_seq);
1295 private_vblank->last_seq = first_wait_info->target_seq;
1296 private_vblank->last_time = first_wait_info->target_time;
1298 VDB("wait(%p) last(%.6f) sequence(%u) done", first_wait_info, private_vblank->last_time, first_wait_info->target_seq);
1300 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
1301 if (w->target_time != first_wait_info->target_time)
1305 _tdm_vblank_valid_list_del(&w->valid_link);
1308 tdm_display_unlock(private_vblank->dpy);
1309 w->func(private_vblank, TDM_ERROR_NONE, w->target_seq,
1310 TDM_TIME_SEC(w->target_time), TDM_TIME_USEC(w->target_time),
1312 tdm_display_lock(private_vblank->dpy);
1318 return TDM_ERROR_NONE;
1322 _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info)
1324 tdm_private_vblank *private_vblank = wait_info->private_vblank;
1327 if (private_vblank->last_type != VBLANK_EVENT_TYPE_SW) {
1328 VIN("Use SW vblank");
1329 private_vblank->last_type = VBLANK_EVENT_TYPE_SW;
1332 if (private_vblank->last_time == 0) {
1333 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1334 private_vblank->last_seq = 0;
1335 private_vblank->last_time = tdm_helper_get_time();
1337 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1338 wait_info->target_seq = 1;
1339 wait_info->target_time = private_vblank->last_time + 0.001;
1341 VDB("wait(%p) last(%.6f) target(%.6f) target sequence(%u)",
1342 wait_info, private_vblank->last_time, wait_info->target_time, wait_info->target_seq);
1344 double last, prev, req, curr, target;
1347 last = private_vblank->last_time;
1348 req = wait_info->req_time;
1350 /* make sure that req time is bigger than last. */
1354 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1355 prev = last + private_vblank->vblank_gap * skip;
1357 curr = tdm_helper_get_time();
1358 target = prev + private_vblank->vblank_gap * wait_info->interval;
1360 while (target < curr)
1361 target += private_vblank->vblank_gap;
1363 wait_info->target_seq = private_vblank->last_seq;
1364 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1366 wait_info->target_time = target;
1368 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) targ_seq(%u)",
1369 wait_info, last, req - last, prev - last, curr - last,
1370 target, target - last, skip, wait_info->target_seq);
1373 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1375 ret = _tdm_vblank_sw_timer_update(private_vblank);
1376 if (ret != TDM_ERROR_NONE) {
1377 /* LCOV_EXCL_START */
1378 LIST_DEL(&wait_info->link);
1379 VER("couldn't update sw timer");
1381 /* LCOV_EXCL_STOP */
1384 return TDM_ERROR_NONE;
1388 tdm_vblank_wait(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1389 unsigned int interval, tdm_vblank_handler func, void *user_data)
1391 tdm_private_vblank *private_vblank = vblank;
1392 tdm_vblank_wait_info *wait_info;
1393 tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1397 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1398 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1400 if (private_vblank->in_create_handler) {
1401 TDM_ERR("NOT allowed to be called in a create handler");
1402 return TDM_ERROR_BAD_REQUEST;
1405 if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1406 TDM_ERR("SHOULD be called in the owner thread(%d)", (int)private_vblank->owner_tid);
1407 return TDM_ERROR_BAD_REQUEST;
1410 tdm_output_get_dpms(private_vblank->output, &dpms);
1412 if (!private_vblank->enable_fake) {
1413 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
1414 VER("can't wait a vblank: output disconnected");
1415 return TDM_ERROR_OUTPUT_DISCONNECTED;
1417 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms)) {
1418 VER("can't wait a vblank: DPMS %s", tdm_dpms_str(dpms));
1419 return TDM_ERROR_DPMS_OFF;
1423 wait_info = calloc(1, sizeof * wait_info);
1425 /* LCOV_EXCL_START */
1426 VER("alloc failed");
1427 return TDM_ERROR_OUT_OF_MEMORY;
1428 /* LCOV_EXCL_STOP */
1431 /* set request time to current time if 0. This function seems to be called in server side. */
1432 if (req_sec == 0 && req_usec == 0) {
1433 double curr = tdm_helper_get_time();
1434 req_sec = TDM_TIME_SEC(curr);
1435 req_usec = TDM_TIME_USEC(curr);
1438 LIST_INITHEAD(&wait_info->link);
1440 _tdm_vblank_valid_list_add(&wait_info->valid_link, &valid_wait_list);
1442 wait_info->stamp = ++stamp;
1443 wait_info->req_time = TDM_TIME(req_sec, req_usec);
1444 wait_info->interval = interval;
1445 wait_info->func = func;
1446 wait_info->user_data = user_data;
1447 wait_info->private_vblank = private_vblank;
1449 if (private_vblank->ignore_global_fps ||
1450 vblank_global_fps == 0 ||
1451 private_vblank->fps < vblank_global_fps)
1452 fps = private_vblank->fps;
1454 fps = vblank_global_fps;
1456 if (private_vblank->check_HW_or_SW) {
1457 private_vblank->check_HW_or_SW = 0;
1458 private_vblank->vblank_gap = 1.0 / fps;
1459 private_vblank->quotient = private_vblank->vrefresh / fps;
1462 /* 1) if fps != factor of vrefresh, SW timer
1463 * 2) if fps == factor of vrefresh && dpms == off, SW timer (Fake HW vblank)
1464 * 2) if fps == factor of vrefresh && dpms == on && offset == 0, HW vblank
1465 * 3) if fps == factor of vrefresh && dpms == on && offset != 0, HW vblank + SW timer
1466 * In case of 1), we really don't need to align with HW vblank.
1468 if (private_vblank->vrefresh % fps)
1469 wait_info->type = VBLANK_TYPE_SW;
1470 else if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms) ||
1471 private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED)
1472 wait_info->type = VBLANK_TYPE_SW_FAKE;
1473 else if (private_vblank->offset == 0)
1474 wait_info->type = VBLANK_TYPE_HW;
1476 wait_info->type = VBLANK_TYPE_HW_SW;
1478 if (wait_info->type == VBLANK_TYPE_SW || wait_info->type == VBLANK_TYPE_SW_FAKE) {
1479 ret = _tdm_vblank_wait_SW(wait_info);
1480 if (ret != TDM_ERROR_NONE)
1481 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1483 ret = _tdm_vblank_wait_HW(wait_info);
1484 if (ret != TDM_ERROR_NONE)
1485 TDM_ERR("_tdm_vblank_wait_HW failed: ret(%d)", ret);
1487 if (ret == TDM_ERROR_OUTPUT_DISCONNECTED || ret == TDM_ERROR_DPMS_OFF) {
1488 ret = _tdm_vblank_wait_SW(wait_info);
1489 if (ret != TDM_ERROR_NONE)
1490 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1494 if (ret != TDM_ERROR_NONE) {
1495 /* LCOV_EXCL_START */
1496 LIST_DEL(&wait_info->link);
1497 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1499 tdm_display_lock(private_vblank->dpy);
1500 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, wait_info);
1501 tdm_display_unlock(private_vblank->dpy);
1505 /* LCOV_EXCL_STOP */
1508 tdm_display_lock(private_vblank->dpy);
1509 _tdm_vblank_timeout_timer_update(private_vblank, 1000);
1510 tdm_display_unlock(private_vblank->dpy);
1512 return TDM_ERROR_NONE;
1516 tdm_vblank_wait_seq(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1517 unsigned int sequence, tdm_vblank_handler func, void *user_data)
1519 tdm_private_vblank *private_vblank = vblank;
1520 unsigned int interval;
1522 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1523 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1525 /* if the sequence of vblank reaches the max value, sequence can be 0. */
1527 if (private_vblank->last_seq == 0) {
1528 VWR("can't calculate interval with sequence(%u)", sequence);
1530 } else if (sequence > private_vblank->last_seq ||
1531 TDM_VBLANK_SEQ_REACHED_MAX(sequence, private_vblank->last_seq)) {
1532 double last, curr, seq_target;
1534 last = private_vblank->last_time;
1535 curr = tdm_helper_get_time();
1536 seq_target = last + private_vblank->vblank_gap * (sequence - private_vblank->last_seq);
1538 /* If target is old or too close(1ms) to current, we call the handler immediately.
1539 * 2ms? it seems too much.
1541 if (seq_target < curr) {
1542 func(vblank, TDM_ERROR_NONE, sequence,
1543 TDM_TIME_SEC(seq_target), TDM_TIME_USEC(seq_target),
1545 return TDM_ERROR_NONE;
1546 } else if ((seq_target - curr) < 0.001) { /* 1ms */
1547 func(vblank, TDM_ERROR_NONE, sequence,
1548 TDM_TIME_SEC(curr), TDM_TIME_USEC(curr),
1550 return TDM_ERROR_NONE;
1553 interval = (unsigned int)((seq_target - curr) / private_vblank->vblank_gap + TDM_TIME_MARGIN) + 1;
1555 /* this seems error. But we handle this like normal to avoid the unexpected error in cliend side */
1556 VER("sequence(%u) should be over the last sequence(%u)", sequence, private_vblank->last_seq);
1557 func(vblank, TDM_ERROR_NONE, private_vblank->last_seq,
1558 TDM_TIME_SEC(private_vblank->last_time), TDM_TIME_USEC(private_vblank->last_time),
1560 return TDM_ERROR_NONE;
1563 return tdm_vblank_wait(vblank, req_sec, req_usec, interval, func, user_data);
1566 /* LCOV_EXCL_START */
1568 tdm_vblank_set_add_front(tdm_vblank *vblank, unsigned int add_front)
1570 tdm_private_vblank *private_vblank = vblank;
1572 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1574 TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
1576 if (private_vblank->add_front == add_front)
1577 return TDM_ERROR_NONE;
1579 private_vblank->add_front = add_front;
1581 return TDM_ERROR_NONE;
1583 /* LCOV_EXCL_STOP */
1586 tdm_vblank_set_resource(tdm_vblank *vblank, struct wl_resource *resource)
1588 tdm_private_vblank *private_vblank = vblank;
1590 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1591 TDM_RETURN_VAL_IF_FAIL(private_vblank->resource == NULL, TDM_ERROR_OPERATION_FAILED);
1593 private_vblank->resource = resource;
1595 return TDM_ERROR_NONE;
1599 tdm_vblank_get_stamp(tdm_vblank *vblank)
1601 tdm_private_vblank *private_vblank = vblank;
1603 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1605 return private_vblank->stamp;
1609 _tdm_vblank_get_waiting_count(tdm_private_vblank *private_vblank)
1611 tdm_vblank_wait_info *wait_info = NULL;
1612 unsigned int count = 0;
1614 LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->HW_wait_list, link) {
1618 LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->SW_wait_list, link) {
1626 _tdm_vblank_get_client_information(tdm_private_vblank *private_vblank, pid_t *pid, const char **name)
1628 struct wl_client *client;
1630 if (!private_vblank->resource)
1633 client = wl_resource_get_client(private_vblank->resource);
1637 wl_client_get_credentials(client, pid, NULL, NULL);
1638 *name = tdm_server_get_client_name(*pid);
1648 /* LCOV_EXCL_START */
1650 tdm_vblank_get_vblank_list_information(tdm_display *dpy, char *reply, int *len)
1652 tdm_private_vblank *v = NULL;
1653 tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1654 tdm_output *output = tdm_display_get_output(dpy, 0, NULL);
1657 tdm_output_get_dpms(output, &dpms);
1659 TDM_SNPRINTF(reply, len, "[Client Vblank List]\n");
1660 TDM_SNPRINTF(reply, len, "* DPMS: %s\n", tdm_dpms_str(dpms));
1661 TDM_SNPRINTF(reply, len, "* global fps: %u\n", vblank_global_fps);
1662 TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1663 TDM_SNPRINTF(reply, len, "Name Type Wait Interval Sequence Fps Ignore Offset Fake Process\n");
1664 TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1666 pthread_mutex_lock(&valid_list_lock);
1667 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
1668 const char *proc_name = NULL;
1672 _tdm_vblank_get_client_information(v, &pid, &proc_name);
1674 count = _tdm_vblank_get_waiting_count(v);
1676 TDM_SNPRINTF(reply, len, "%-8s(%p) ", v->name, v);
1677 TDM_SNPRINTF(reply, len, "%-4s ", (v->last_type == VBLANK_EVENT_TYPE_HW) ? "HW" : "SW");
1678 TDM_SNPRINTF(reply, len, "%-4s ", (count > 0) ? "O" : " ");
1679 TDM_SNPRINTF(reply, len, "%-8d ", v->last_interval);
1680 TDM_SNPRINTF(reply, len, "%-8u ", v->last_seq);
1681 TDM_SNPRINTF(reply, len, "%-3u ", v->fps);
1682 TDM_SNPRINTF(reply, len, "%-6u ", v->ignore_global_fps);
1683 TDM_SNPRINTF(reply, len, "%-6d ", v->offset);
1684 TDM_SNPRINTF(reply, len, "%-4u ", v->enable_fake);
1685 TDM_SNPRINTF(reply, len, "%s(pid:%d)\n", (proc_name) ? proc_name : "Unknown", pid);
1687 pthread_mutex_unlock(&valid_list_lock);
1689 TDM_SNPRINTF(reply, len, "\n");
1691 /* LCOV_EXCL_STOP */