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 **************************************************************************/
41 #include "tdm_private.h"
43 #include "tdm_macro.h"
46 * Basically tdm vblank doesn't care about thread things.
47 * However, to use tdm_event_loop_xxx functions, have to use the internal function.
48 * So need to lock/unlock the mutex of private_display. And valid_vblank_list and
49 * valid_wait_list should be protected by valid_list_lock because tdm_vblank can
50 * be used in multi-thread.
54 * - aligned by HW vblank
55 * - use a tdm_event_loop_source object only.
58 #define TDM_VBLANK_DEFAULT_VREFRESH 30
60 /* We expact "(unsigned int)(0.0016667 / 0.0016667) = 1". But it becomes 0. */
61 #define TDM_TIME_MARGIN 0.0000001
63 #define TDM_VBLANK_UINT_MAX 4294967295U
64 #define TDM_VBLANK_UINT_1Q 1073741823U /* UINT_MAX / 4 */
65 #define TDM_VBLANK_UINT_3Q 3221225471U /* UINT_MAX / 4 * 3 */
67 /* (seq < TDM_VBLANK_UINT_1Q && TDM_VBLANK_UINT_3Q < last_seq) means
68 * that the sequence value has reached the max value and started from 0 again.
70 #define TDM_VBLANK_SEQ_REACHED_MAX(seq, last_seq) \
71 ((seq) < TDM_VBLANK_UINT_1Q && TDM_VBLANK_UINT_3Q < (last_seq))
73 #define VER(fmt, arg...) TDM_ERR("[%p] "fmt, private_vblank, ##arg)
74 #define VWR(fmt, arg...) TDM_WRN("[%p] "fmt, private_vblank, ##arg)
75 #define VIN(fmt, arg...) do { if (tdm_debug_module & TDM_DEBUG_VBLANK) TDM_INFO("[%p] "fmt, private_vblank, ##arg); } while (0)
76 #define VDB(fmt, arg...) do { if (tdm_debug_module & TDM_DEBUG_VBLANK) TDM_DBG("[%p] "fmt, private_vblank, ##arg); } while (0)
83 } tdm_vblank_wait_type;
86 VBLANK_EVENT_TYPE_NONE,
89 } tdm_vblank_event_type;
91 typedef struct _tdm_vblank_wait_info tdm_vblank_wait_info;
93 typedef struct _tdm_private_vblank {
94 struct list_head valid_link;
101 tdm_output_conn_status connection;
102 unsigned int vrefresh;
104 tdm_vblank_event_type last_type;
105 unsigned int check_HW_or_SW;
106 char name[TDM_NAME_LEN];
108 unsigned int fps_changeable;
109 unsigned int fps_fixed;
111 unsigned int enable_fake;
112 unsigned int ignore_global_fps;
113 unsigned int in_create_handler;
116 unsigned int quotient;
118 unsigned int last_seq;
121 unsigned int add_front;
122 struct wl_resource *resource;
125 double HW_vblank_gap;
126 struct list_head HW_wait_list;
129 tdm_event_loop_source *SW_timer;
130 struct list_head SW_wait_list;
131 } tdm_private_vblank;
133 struct _tdm_vblank_wait_info {
134 struct list_head link;
135 struct list_head valid_link;
140 unsigned int interval;
142 tdm_vblank_handler func;
144 tdm_private_vblank *private_vblank;
146 tdm_vblank_wait_type type;
149 unsigned int target_seq;
152 typedef struct _tdm_vblank_create_handler_info {
153 struct list_head link;
155 tdm_vblank_create_handler func;
157 } tdm_vblank_create_handler_info;
159 /* valid_vblank_list and valid_wait_list should be protected by valid_list_lock because
160 * tdm_vblank can be used in multi-thread.
162 static pthread_mutex_t valid_list_lock;
163 static struct list_head valid_vblank_list;
164 static struct list_head valid_wait_list;
165 static struct list_head create_handler_list;
166 static unsigned int vblank_list_inited;
167 static unsigned int vblank_global_fps;
168 static double stamp = 0;
170 static tdm_error _tdm_vblank_cb_vblank_SW(void *user_data);
171 static tdm_error _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info);
172 static void _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
173 unsigned int tv_sec, unsigned int tv_usec,
178 _print_list(struct list_head *list)
180 tdm_vblank_wait_info *w = NULL;
182 LIST_FOR_EACH_ENTRY(w, list, link) {
183 printf(" %d", w->interval);
190 tdm_vblank_is_valid(tdm_vblank *vblank)
192 tdm_private_vblank *v = NULL;
194 if (vblank && vblank_list_inited) {
195 pthread_mutex_lock(&valid_list_lock);
196 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
197 if (v == (tdm_private_vblank *)vblank) {
198 pthread_mutex_unlock(&valid_list_lock);
202 pthread_mutex_unlock(&valid_list_lock);
209 _tdm_vblank_valid_list_add(struct list_head *valid_link, struct list_head *valid_list)
211 pthread_mutex_lock(&valid_list_lock);
212 LIST_ADDTAIL(valid_link, valid_list);
213 pthread_mutex_unlock(&valid_list_lock);
217 _tdm_vblank_valid_list_del(struct list_head *valid_link)
219 pthread_mutex_lock(&valid_list_lock);
220 LIST_DEL(valid_link);
221 pthread_mutex_unlock(&valid_list_lock);
224 static inline tdm_private_vblank*
225 _tdm_vblank_find(double vblank_stamp)
227 tdm_private_vblank *v = NULL;
232 pthread_mutex_lock(&valid_list_lock);
233 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
234 if (v->stamp == vblank_stamp) {
235 pthread_mutex_unlock(&valid_list_lock);
239 pthread_mutex_unlock(&valid_list_lock);
244 static inline unsigned int
245 _tdm_vblank_check_valid_wait(tdm_vblank_wait_info *wait_info)
247 tdm_vblank_wait_info *w = NULL;
252 pthread_mutex_lock(&valid_list_lock);
253 LIST_FOR_EACH_ENTRY(w, &valid_wait_list, valid_link) {
254 if (w == wait_info) {
255 pthread_mutex_unlock(&valid_list_lock);
259 pthread_mutex_unlock(&valid_list_lock);
264 static inline unsigned int
265 _tdm_vblank_find_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
267 tdm_vblank_wait_info *w = NULL;
272 LIST_FOR_EACH_ENTRY(w, list, link) {
273 if (w->stamp == wait_info->stamp)
281 _tdm_vblank_insert_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
283 tdm_vblank_wait_info *w = NULL;
284 tdm_vblank_wait_info *found = NULL;
286 if (LIST_IS_EMPTY(list)) {
287 LIST_ADDTAIL(&wait_info->link, list);
291 LIST_FOR_EACH_ENTRY(w, list, link) {
292 if (wait_info->type == VBLANK_TYPE_SW) {
293 if (wait_info->target_time == 0)
294 TDM_NEVER_GET_HERE();
295 if (w->target_time <= wait_info->target_time) {
300 if (w->interval <= wait_info->interval) {
308 LIST_ADD(&wait_info->link, &found->link);
310 LIST_ADDTAIL(&wait_info->link, list->next);
314 _tdm_vblank_change_to_SW(tdm_private_vblank *private_vblank)
316 tdm_vblank_wait_info *w = NULL, *ww = NULL;
318 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
321 tdm_display_lock(private_vblank->dpy);
322 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, w);
323 tdm_display_unlock(private_vblank->dpy);
325 w->type = VBLANK_TYPE_SW_FAKE;
326 _tdm_vblank_wait_SW(w);
331 _tdm_vblank_free_HW_wait(tdm_private_vblank *private_vblank, tdm_error error, unsigned int call_cb)
333 tdm_vblank_wait_info *w = NULL, *ww = NULL;
335 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
337 _tdm_vblank_valid_list_del(&w->valid_link);
339 tdm_display_lock(private_vblank->dpy);
340 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, w);
341 tdm_display_unlock(private_vblank->dpy);
343 if (call_cb && w->func)
344 w->func(private_vblank, error, 0, 0, 0, w->user_data);
351 _tdm_vblank_update_output_info(tdm_private_vblank *private_vblank)
353 tdm_output *output = private_vblank->output;
354 tdm_output_conn_status connection = TDM_OUTPUT_CONN_STATUS_DISCONNECTED;
355 unsigned int vrefresh = 0;
358 ret = tdm_output_get_conn_status(output, &connection);
359 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
361 if (connection != TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
362 const tdm_output_mode *mode = NULL;
363 tdm_output_get_mode(output, &mode);
365 vrefresh = mode->vrefresh;
367 VWR("mode not setted!!!");
371 VWR("vrefresh can't be zero !!!");
372 vrefresh = TDM_VBLANK_DEFAULT_VREFRESH;
375 private_vblank->connection = connection;
376 private_vblank->vrefresh = vrefresh;
377 private_vblank->HW_vblank_gap = 1.0 / private_vblank->vrefresh;
379 if (private_vblank->fps_changeable)
380 private_vblank->fps = vrefresh;
382 VIN("connection(%d) vrefresh(%d) fps(%d) fps_changeable(%d)",
383 private_vblank->connection,
384 private_vblank->vrefresh, private_vblank->fps, private_vblank->fps_changeable);
387 /* LCOV_EXCL_START */
389 _tdm_vblank_cb_output_change(tdm_output *output, tdm_output_change_type type,
390 tdm_value value, void *user_data)
392 tdm_private_vblank *private_vblank = user_data;
394 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
397 case TDM_OUTPUT_CHANGE_DPMS:
398 VIN("dpms %s", tdm_dpms_str(value.u32));
399 private_vblank->check_HW_or_SW = 1;
400 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(value.u32)) {
401 if (private_vblank->enable_fake)
402 _tdm_vblank_change_to_SW(private_vblank);
404 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_DPMS_OFF, 1);
407 case TDM_OUTPUT_CHANGE_CONNECTION:
408 if (private_vblank->connection == value.u32)
410 VIN("output %s", tdm_status_str(value.u32));
411 _tdm_vblank_update_output_info(private_vblank);
412 private_vblank->check_HW_or_SW = 1;
413 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
414 if (private_vblank->enable_fake)
415 _tdm_vblank_change_to_SW(private_vblank);
417 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_OUTPUT_DISCONNECTED, 1);
427 tdm_vblank_set_client_vblank_fps(unsigned int pid, const char *name, unsigned int fps)
429 tdm_private_vblank *v = NULL;
431 TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
432 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
434 TDM_INFO("pid: %u, name: %s, fps: %d", pid, name, fps);
436 pthread_mutex_lock(&valid_list_lock);
437 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
438 struct wl_client *client;
439 pid_t client_pid = 0;
444 client = wl_resource_get_client(v->resource);
448 wl_client_get_credentials(client, &client_pid, NULL, NULL);
450 if (client_pid != pid)
453 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
454 if (strncmp(v->name, name, TDM_NAME_LEN))
458 tdm_vblank_set_fps(v, fps);
460 TDM_INFO("(pid:%u) '%s' fps changed: %d", pid, v->name, fps);
462 pthread_mutex_unlock(&valid_list_lock);
464 return TDM_ERROR_NONE;
468 tdm_vblank_enable_global_fps(unsigned int enable, unsigned int fps)
470 tdm_private_vblank *v = NULL;
473 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
475 TDM_INFO("global fps: %s fps(%d)", (enable) ? "enabled" : "disabled", fps);
477 pthread_mutex_lock(&valid_list_lock);
479 vblank_global_fps = (enable) ? fps : 0;
481 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
482 /* skip if vblank is created in server side */
486 v->check_HW_or_SW = 1;
488 pthread_mutex_unlock(&valid_list_lock);
490 return TDM_ERROR_NONE;
494 tdm_vblank_cb_vblank_create(tdm_vblank *vblank, double vblank_stamp)
496 tdm_private_vblank *private_vblank;
497 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
499 TDM_RETURN_VAL_IF_FAIL(vblank || vblank_stamp > 0, TDM_ERROR_INVALID_PARAMETER);
502 private_vblank = vblank;
504 private_vblank = _tdm_vblank_find(vblank_stamp);
505 if (!private_vblank) {
506 TDM_DBG("can't find vblank(%.0f) from valid_list", vblank_stamp);
507 return TDM_ERROR_NONE;
511 if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
512 tdm_thread_cb_vblank_create vblank_create;
513 tdm_private_display *private_display = private_vblank->dpy;
516 vblank_create.base.type = TDM_THREAD_CB_VBLANK_CREATE;
517 vblank_create.base.length = sizeof vblank_create;
518 vblank_create.vblank_stamp = private_vblank->stamp;
520 ret = tdm_thread_send_cb(private_display->private_loop, &vblank_create.base);
521 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
523 return TDM_ERROR_NONE;
526 LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
527 private_vblank->in_create_handler = 1;
528 ch_info->func(private_vblank, ch_info->user_data);
529 private_vblank->in_create_handler = 0;
532 return TDM_ERROR_NONE;
536 tdm_vblank_add_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
538 tdm_vblank_create_handler_info *ch_info;
540 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
542 /* we don't allow adding a create handler in sub-thread because tdm_vblank_create()
543 * can be called in both threads and tdm_thread_send_cb supports only one-way
546 if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
547 TDM_ERR("add_create_handler should be called in main thread");
548 return TDM_ERROR_BAD_REQUEST;
551 ch_info = calloc(1, sizeof *ch_info);
552 TDM_RETURN_VAL_IF_FAIL(ch_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
554 ch_info->func = func;
555 ch_info->user_data = user_data;
557 LIST_ADDTAIL(&ch_info->link, &create_handler_list);
559 return TDM_ERROR_NONE;
563 tdm_vblank_remove_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
565 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
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("remove_create_handler should be called in main thread");
576 LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
577 if (ch_info->func != func && ch_info->user_data != user_data)
580 LIST_DEL(&ch_info->link);
587 tdm_vblank_init(tdm_display *dpy)
589 if (vblank_list_inited)
590 return TDM_ERROR_NONE;
592 if (pthread_mutex_init(&valid_list_lock, NULL)) {
593 TDM_ERR("mutex init failed: %m");
594 return TDM_ERROR_OUT_OF_MEMORY;
597 LIST_INITHEAD(&valid_vblank_list);
598 LIST_INITHEAD(&valid_wait_list);
599 LIST_INITHEAD(&create_handler_list);
601 vblank_list_inited = 1;
603 return TDM_ERROR_NONE;
607 tdm_vblank_deinit(tdm_display *dpy)
609 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
611 if (!vblank_list_inited)
614 if (!LIST_IS_EMPTY(&valid_vblank_list))
615 TDM_NEVER_GET_HERE();
617 if (!LIST_IS_EMPTY(&valid_wait_list))
618 TDM_NEVER_GET_HERE();
620 LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
621 LIST_DEL(&ch_info->link);
625 pthread_mutex_destroy(&valid_list_lock);
627 vblank_list_inited = 0;
631 tdm_vblank_create(tdm_display *dpy, tdm_output *output, tdm_error *error)
633 tdm_private_vblank *private_vblank;
636 TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_display_is_valid(dpy), TDM_ERROR_INVALID_PARAMETER, NULL);
637 TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_output_is_valid(output), TDM_ERROR_INVALID_PARAMETER, NULL);
640 *error = TDM_ERROR_NONE;
642 private_vblank = calloc(1, sizeof * private_vblank);
643 if (!private_vblank) {
644 /* LCOV_EXCL_START */
646 *error = TDM_ERROR_OUT_OF_MEMORY;
652 tdm_output_add_change_handler(output, _tdm_vblank_cb_output_change, private_vblank);
654 private_vblank->stamp = ++stamp;
655 private_vblank->owner_tid = syscall(SYS_gettid);
656 private_vblank->dpy = dpy;
657 private_vblank->output = output;
658 private_vblank->check_HW_or_SW = 1;
659 private_vblank->fps_changeable = 1;
661 _tdm_vblank_update_output_info(private_vblank);
663 strncpy(private_vblank->name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN - 1);
664 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
666 LIST_INITHEAD(&private_vblank->HW_wait_list);
667 LIST_INITHEAD(&private_vblank->SW_wait_list);
669 _tdm_vblank_valid_list_add(&private_vblank->valid_link, &valid_vblank_list);
671 VIN("created. vrefresh(%d) connection(%d)",
672 private_vblank->vrefresh, private_vblank->connection);
674 tdm_display_lock(private_vblank->dpy);
675 tdm_vblank_cb_vblank_create(NULL, private_vblank->stamp);
676 tdm_display_unlock(private_vblank->dpy);
678 return (tdm_vblank *)private_vblank;
682 tdm_vblank_destroy(tdm_vblank *vblank)
684 tdm_private_vblank *private_vblank = vblank;
685 tdm_vblank_wait_info *w = NULL, *ww = NULL;
687 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(vblank));
689 if (private_vblank->in_create_handler) {
690 TDM_ERR("NOT allowed to be called in a create handler");
694 _tdm_vblank_valid_list_del(&private_vblank->valid_link);
696 if (private_vblank->SW_timer) {
697 tdm_display_lock(private_vblank->dpy);
698 tdm_event_loop_source_remove(private_vblank->SW_timer);
699 tdm_display_unlock(private_vblank->dpy);
702 tdm_output_remove_change_handler(private_vblank->output,
703 _tdm_vblank_cb_output_change, private_vblank);
705 _tdm_vblank_free_HW_wait(private_vblank, 0, 0);
707 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
709 _tdm_vblank_valid_list_del(&w->valid_link);
715 free(private_vblank);
719 tdm_vblank_get_client_pid(tdm_vblank *vblank, pid_t *pid)
721 tdm_private_vblank *private_vblank = vblank;
722 struct wl_client *client;
724 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
725 TDM_RETURN_VAL_IF_FAIL(pid != NULL, TDM_ERROR_INVALID_PARAMETER);
727 if (!private_vblank->resource) {
729 return TDM_ERROR_NONE;
732 client = wl_resource_get_client(private_vblank->resource);
735 return TDM_ERROR_NONE;
738 wl_client_get_credentials(client, pid, NULL, NULL);
740 return TDM_ERROR_NONE;
744 tdm_vblank_set_name(tdm_vblank *vblank, const char *name)
746 tdm_private_vblank *private_vblank = vblank;
748 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
751 name = TDM_VBLANK_DEFAULT_NAME;
753 strncpy(private_vblank->name, name, TDM_NAME_LEN - 1);
754 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
756 VIN("name(%s)", name);
758 return TDM_ERROR_NONE;
762 tdm_vblank_get_name(tdm_vblank *vblank, const char **name)
764 tdm_private_vblank *private_vblank = vblank;
766 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
767 TDM_RETURN_VAL_IF_FAIL(name != NULL, TDM_ERROR_INVALID_PARAMETER);
769 *name = (const char*)private_vblank->name;
771 return TDM_ERROR_NONE;
775 tdm_vblank_set_fps(tdm_vblank *vblank, unsigned int fps)
777 tdm_private_vblank *private_vblank = vblank;
779 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
780 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
782 if (private_vblank->fps_fixed) {
783 VIN("fps(%d) can't be changed", private_vblank->fps);
784 return TDM_ERROR_NONE;
787 private_vblank->fps_changeable = 0;
789 if (private_vblank->fps == fps)
790 return TDM_ERROR_NONE;
792 private_vblank->fps = fps;
793 private_vblank->check_HW_or_SW = 1;
795 VIN("fps(%d) changed", fps);
797 return TDM_ERROR_NONE;
801 tdm_vblank_get_fps(tdm_vblank *vblank, unsigned int *fps)
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(fps != NULL, TDM_ERROR_INVALID_PARAMETER);
808 *fps = private_vblank->fps;
810 return TDM_ERROR_NONE;
814 tdm_vblank_set_fixed_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 private_vblank->fps_changeable = 0;
822 private_vblank->fps_fixed = 1;
824 if (private_vblank->fps == fps)
825 return TDM_ERROR_NONE;
827 private_vblank->fps = fps;
828 private_vblank->check_HW_or_SW = 1;
830 VIN("fps(%d) fixed", fps);
832 return TDM_ERROR_NONE;
836 tdm_vblank_ignore_global_fps(tdm_vblank *vblank, unsigned int ignore)
838 tdm_private_vblank *private_vblank = vblank;
840 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
842 if (private_vblank->ignore_global_fps == ignore)
843 return TDM_ERROR_NONE;
845 private_vblank->ignore_global_fps = ignore;
846 private_vblank->check_HW_or_SW = 1;
848 VIN("ignore_global_fps(%d)", private_vblank->ignore_global_fps);
850 return TDM_ERROR_NONE;
854 tdm_vblank_set_offset(tdm_vblank *vblank, int offset)
856 tdm_private_vblank *private_vblank = vblank;
858 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
860 if (private_vblank->offset == offset)
861 return TDM_ERROR_NONE;
863 private_vblank->offset = offset;
864 private_vblank->check_HW_or_SW = 1;
866 VIN("offset(%d)", private_vblank->offset);
868 return TDM_ERROR_NONE;
872 tdm_vblank_get_offset(tdm_vblank *vblank, int *offset)
874 tdm_private_vblank *private_vblank = vblank;
876 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
877 TDM_RETURN_VAL_IF_FAIL(offset != NULL, TDM_ERROR_INVALID_PARAMETER);
879 *offset = private_vblank->offset;
881 return TDM_ERROR_NONE;
885 tdm_vblank_set_enable_fake(tdm_vblank *vblank, unsigned int enable_fake)
887 tdm_private_vblank *private_vblank = vblank;
889 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
891 if (private_vblank->enable_fake == enable_fake)
892 return TDM_ERROR_NONE;
894 private_vblank->enable_fake = enable_fake;
896 VIN("enable_fake(%d)", private_vblank->enable_fake);
898 return TDM_ERROR_NONE;
902 tdm_vblank_get_enable_fake(tdm_vblank *vblank, unsigned int *enable_fake)
904 tdm_private_vblank *private_vblank = vblank;
906 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
907 TDM_RETURN_VAL_IF_FAIL(enable_fake != NULL, TDM_ERROR_INVALID_PARAMETER);
909 *enable_fake = private_vblank->enable_fake;
911 return TDM_ERROR_NONE;
915 _tdm_vblank_sw_timer_update(tdm_private_vblank *private_vblank)
917 tdm_vblank_wait_info *first_wait_info = NULL;
922 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
924 return TDM_ERROR_OPERATION_FAILED;
927 first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
928 curr = tdm_helper_get_time();
929 target = first_wait_info->target_time;
931 /* ms_delay should be more that 1 */
935 ms_delay = ceil((target - curr) * 1000.0);
941 VER("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
943 VDB("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
945 tdm_display_lock(private_vblank->dpy);
947 if (!private_vblank->SW_timer) {
948 private_vblank->SW_timer =
949 tdm_event_loop_add_timer_handler(private_vblank->dpy,
950 _tdm_vblank_cb_vblank_SW,
953 if (!private_vblank->SW_timer) {
954 tdm_display_unlock(private_vblank->dpy);
955 VER("couldn't add timer");
958 VIN("Create SW timer");
961 ret = tdm_event_loop_source_timer_update(private_vblank->SW_timer, ms_delay);
962 if (ret != TDM_ERROR_NONE) {
963 /* LCOV_EXCL_START */
964 tdm_display_unlock(private_vblank->dpy);
965 VER("couldn't update timer");
970 tdm_display_unlock(private_vblank->dpy);
972 return TDM_ERROR_NONE;
976 _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
977 unsigned int tv_sec, unsigned int tv_usec,
980 tdm_vblank_wait_info *wait_info = user_data;
981 tdm_private_vblank *private_vblank;
983 if (!_tdm_vblank_check_valid_wait(wait_info)) {
984 TDM_DBG("can't find wait(%p) from valid_wait_list", wait_info);
988 private_vblank = wait_info->private_vblank;
989 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
991 if (!_tdm_vblank_find_wait(wait_info, &private_vblank->HW_wait_list)) {
992 VDB("can't find wait(%p)", wait_info);
996 if (wait_info->type == VBLANK_TYPE_HW_SW) {
999 LIST_DEL(&wait_info->link);
1001 /* kernel sends the wrong time of first vblank event. and the time of
1002 * second vblank is correct.
1004 wait_info->target_time = TDM_TIME(tv_sec, tv_usec);
1005 wait_info->target_time += (((double)private_vblank->offset) / 1000.0);
1007 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1009 ret = _tdm_vblank_sw_timer_update(private_vblank);
1011 /* wait_info will be freed in _tdm_vblank_cb_vblank_SW() */
1012 if (ret == TDM_ERROR_NONE) {
1013 VDB("wait(%p) SW timer", wait_info);
1017 VWR("couldn't update sw timer");
1020 LIST_DEL(&wait_info->link);
1021 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1023 /* tv_sec & tv_usec shouldn't be zero. But sometimes they are zero in some hardware.
1024 * We need to prohibit that last_time becomes zero because "last_time == 0" means
1025 * that a tdm_vblank object is just created and doesn't have the first vblank event.
1026 * If last_time becomes 0, it would make issue.
1028 if (tv_sec == 0 && tv_usec == 0) {
1029 double curr = tdm_helper_get_time();
1030 tv_sec = TDM_TIME_SEC(curr);
1031 tv_usec = TDM_TIME_USEC(curr);
1034 private_vblank->last_seq = wait_info->target_seq;
1035 private_vblank->last_time = TDM_TIME(tv_sec, tv_usec);
1037 VDB("wait(%p) last(%.6f) sequence(%u) done", wait_info, private_vblank->last_time, wait_info->target_seq);
1039 if (wait_info->func)
1040 wait_info->func(private_vblank, TDM_ERROR_NONE, wait_info->target_seq,
1041 tv_sec, tv_usec, wait_info->user_data);
1047 _tdm_vblank_wait_HW(tdm_vblank_wait_info *wait_info)
1049 tdm_private_vblank *private_vblank = wait_info->private_vblank;
1053 if (private_vblank->last_type != VBLANK_EVENT_TYPE_HW) {
1054 VIN("Use HW vblank");
1055 private_vblank->last_type = VBLANK_EVENT_TYPE_HW;
1058 _tdm_vblank_insert_wait(wait_info, &private_vblank->HW_wait_list);
1060 hw_interval = wait_info->interval * private_vblank->quotient;
1062 if (private_vblank->last_time == 0) {
1063 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1064 private_vblank->last_seq = 0;
1065 private_vblank->last_time = tdm_helper_get_time();
1067 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1068 wait_info->target_seq = 1;
1070 VDB("wait(%p) last(%.6f) hw_itvl(%d) targ_seq(%u)",
1071 wait_info, private_vblank->last_time, hw_interval, wait_info->target_seq);
1073 double last, prev, req, curr, target;
1076 last = private_vblank->last_time;
1077 req = wait_info->req_time;
1079 /* make sure that req time is bigger than last. */
1083 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1084 prev = last + private_vblank->vblank_gap * skip;
1086 curr = tdm_helper_get_time();
1088 while (target < curr)
1089 target += (private_vblank->vblank_gap * wait_info->interval);
1091 hw_interval = (unsigned int)((target - curr) / private_vblank->HW_vblank_gap + TDM_TIME_MARGIN) + 1;
1093 wait_info->target_seq = private_vblank->last_seq;
1094 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1096 if (hw_interval > 300)
1097 VER("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1098 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1099 skip, hw_interval, wait_info->target_seq);
1101 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1102 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1103 skip, hw_interval, wait_info->target_seq);
1106 if (private_vblank->add_front)
1107 ret = tdm_output_wait_vblank_add_front(private_vblank->output, hw_interval, 0,
1108 _tdm_vblank_cb_vblank_HW, wait_info);
1110 ret = tdm_output_wait_vblank(private_vblank->output, hw_interval, 0,
1111 _tdm_vblank_cb_vblank_HW, wait_info);
1113 if (ret != TDM_ERROR_NONE) {
1114 LIST_DEL(&wait_info->link);
1118 VDB("wait(%p) waiting", wait_info);
1120 return TDM_ERROR_NONE;
1124 _tdm_vblank_cb_vblank_SW(void *user_data)
1126 tdm_private_vblank *private_vblank = user_data;
1128 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(private_vblank), TDM_ERROR_OPERATION_FAILED);
1130 return tdm_vblank_cb_vblank_SW(private_vblank, 0);
1134 tdm_vblank_cb_vblank_SW(tdm_vblank *vblank, double vblank_stamp)
1136 tdm_private_vblank *private_vblank;
1137 tdm_vblank_wait_info *first_wait_info = NULL, *w = NULL, *ww = NULL;
1139 TDM_RETURN_VAL_IF_FAIL(vblank || vblank_stamp > 0, TDM_ERROR_INVALID_PARAMETER);
1142 private_vblank = vblank;
1144 private_vblank = _tdm_vblank_find(vblank_stamp);
1145 if (!private_vblank) {
1146 TDM_DBG("can't find vblank(%.0f) from valid_list", vblank_stamp);
1147 return TDM_ERROR_NONE;
1151 if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1152 tdm_thread_cb_vblank_sw vblank_sw;
1153 tdm_private_display *private_display = private_vblank->dpy;
1156 vblank_sw.base.type = TDM_THREAD_CB_VBLANK_SW;
1157 vblank_sw.base.length = sizeof vblank_sw;
1158 vblank_sw.vblank_stamp = private_vblank->stamp;
1160 ret = tdm_thread_send_cb(private_display->private_loop, &vblank_sw.base);
1161 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
1163 return TDM_ERROR_NONE;
1166 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1167 VER("no wait_info");
1168 return TDM_ERROR_OPERATION_FAILED;
1171 first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1172 TDM_RETURN_VAL_IF_FAIL(first_wait_info != NULL, TDM_ERROR_OPERATION_FAILED);
1174 if (private_vblank->last_seq >= first_wait_info->target_seq)
1175 TDM_ERR("last_seq(%u) target_seq(%u)", private_vblank->last_seq, first_wait_info->target_seq);
1177 private_vblank->last_seq = first_wait_info->target_seq;
1178 private_vblank->last_time = first_wait_info->target_time;
1180 VDB("wait(%p) last(%.6f) sequence(%u) done", first_wait_info, private_vblank->last_time, first_wait_info->target_seq);
1182 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
1183 if (w->target_time != first_wait_info->target_time)
1187 _tdm_vblank_valid_list_del(&w->valid_link);
1190 tdm_display_unlock(private_vblank->dpy);
1191 w->func(private_vblank, TDM_ERROR_NONE, w->target_seq,
1192 TDM_TIME_SEC(w->target_time), TDM_TIME_USEC(w->target_time),
1194 tdm_display_lock(private_vblank->dpy);
1200 return TDM_ERROR_NONE;
1204 _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info)
1206 tdm_private_vblank *private_vblank = wait_info->private_vblank;
1209 if (private_vblank->last_type != VBLANK_EVENT_TYPE_SW) {
1210 VIN("Use SW vblank");
1211 private_vblank->last_type = VBLANK_EVENT_TYPE_SW;
1214 if (private_vblank->last_time == 0) {
1215 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1216 private_vblank->last_seq = 0;
1217 private_vblank->last_time = tdm_helper_get_time();
1219 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1220 wait_info->target_seq = 1;
1221 wait_info->target_time = private_vblank->last_time + 0.001;
1223 VDB("wait(%p) last(%.6f) target(%.6f) target sequence(%u)",
1224 wait_info, private_vblank->last_time, wait_info->target_time, wait_info->target_seq);
1226 double last, prev, req, curr, target;
1229 last = private_vblank->last_time;
1230 req = wait_info->req_time;
1232 /* make sure that req time is bigger than last. */
1236 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1237 prev = last + private_vblank->vblank_gap * skip;
1239 curr = tdm_helper_get_time();
1240 target = prev + private_vblank->vblank_gap * wait_info->interval;
1242 while (target < curr)
1243 target += private_vblank->vblank_gap;
1245 wait_info->target_seq = private_vblank->last_seq;
1246 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1248 wait_info->target_time = target;
1250 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) targ_seq(%u)",
1251 wait_info, last, req - last, prev - last, curr - last,
1252 target, target - last, skip, wait_info->target_seq);
1255 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1257 ret = _tdm_vblank_sw_timer_update(private_vblank);
1258 if (ret != TDM_ERROR_NONE) {
1259 /* LCOV_EXCL_START */
1260 LIST_DEL(&wait_info->link);
1261 VER("couldn't update sw timer");
1263 /* LCOV_EXCL_STOP */
1266 return TDM_ERROR_NONE;
1270 tdm_vblank_wait(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1271 unsigned int interval, tdm_vblank_handler func, void *user_data)
1273 tdm_private_vblank *private_vblank = vblank;
1274 tdm_vblank_wait_info *wait_info;
1275 tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1279 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1280 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1282 if (private_vblank->in_create_handler) {
1283 TDM_ERR("NOT allowed to be called in a create handler");
1284 return TDM_ERROR_BAD_REQUEST;
1287 if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1288 TDM_ERR("SHOULD be called in the owner thread(%d)", (int)private_vblank->owner_tid);
1289 return TDM_ERROR_BAD_REQUEST;
1292 tdm_output_get_dpms(private_vblank->output, &dpms);
1294 if (!private_vblank->enable_fake) {
1295 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
1296 VER("can't wait a vblank: output disconnected");
1297 return TDM_ERROR_OUTPUT_DISCONNECTED;
1299 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms)) {
1300 VER("can't wait a vblank: DPMS %s", tdm_dpms_str(dpms));
1301 return TDM_ERROR_DPMS_OFF;
1305 wait_info = calloc(1, sizeof * wait_info);
1307 /* LCOV_EXCL_START */
1308 VER("alloc failed");
1309 return TDM_ERROR_OUT_OF_MEMORY;
1310 /* LCOV_EXCL_STOP */
1313 /* set request time to current time if 0. This function seems to be called in server side. */
1314 if (req_sec == 0 && req_usec == 0) {
1315 double curr = tdm_helper_get_time();
1316 req_sec = TDM_TIME_SEC(curr);
1317 req_usec = TDM_TIME_USEC(curr);
1320 LIST_INITHEAD(&wait_info->link);
1322 _tdm_vblank_valid_list_add(&wait_info->valid_link, &valid_wait_list);
1324 wait_info->stamp = ++stamp;
1325 wait_info->req_time = TDM_TIME(req_sec, req_usec);
1326 wait_info->interval = interval;
1327 wait_info->func = func;
1328 wait_info->user_data = user_data;
1329 wait_info->private_vblank = private_vblank;
1331 if (private_vblank->ignore_global_fps ||
1332 vblank_global_fps == 0 ||
1333 private_vblank->fps < vblank_global_fps)
1334 fps = private_vblank->fps;
1336 fps = vblank_global_fps;
1338 if (private_vblank->check_HW_or_SW) {
1339 private_vblank->check_HW_or_SW = 0;
1340 private_vblank->vblank_gap = 1.0 / fps;
1341 private_vblank->quotient = private_vblank->vrefresh / fps;
1344 /* 1) if fps != factor of vrefresh, SW timer
1345 * 2) if fps == factor of vrefresh && dpms == off, SW timer (Fake HW vblank)
1346 * 2) if fps == factor of vrefresh && dpms == on && offset == 0, HW vblank
1347 * 3) if fps == factor of vrefresh && dpms == on && offset != 0, HW vblank + SW timer
1348 * In case of 1), we really don't need to align with HW vblank.
1350 if (private_vblank->vrefresh % fps)
1351 wait_info->type = VBLANK_TYPE_SW;
1352 else if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms) ||
1353 private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED)
1354 wait_info->type = VBLANK_TYPE_SW_FAKE;
1355 else if (private_vblank->offset == 0)
1356 wait_info->type = VBLANK_TYPE_HW;
1358 wait_info->type = VBLANK_TYPE_HW_SW;
1360 if (wait_info->type == VBLANK_TYPE_SW || wait_info->type == VBLANK_TYPE_SW_FAKE) {
1361 ret = _tdm_vblank_wait_SW(wait_info);
1362 if (ret != TDM_ERROR_NONE)
1363 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1365 ret = _tdm_vblank_wait_HW(wait_info);
1366 if (ret != TDM_ERROR_NONE)
1367 TDM_ERR("_tdm_vblank_wait_HW failed: ret(%d)", ret);
1369 if (ret == TDM_ERROR_OUTPUT_DISCONNECTED || ret == TDM_ERROR_DPMS_OFF) {
1370 ret = _tdm_vblank_wait_SW(wait_info);
1371 if (ret != TDM_ERROR_NONE)
1372 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1376 if (ret != TDM_ERROR_NONE) {
1377 /* LCOV_EXCL_START */
1378 LIST_DEL(&wait_info->link);
1379 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1381 tdm_display_lock(private_vblank->dpy);
1382 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, wait_info);
1383 tdm_display_unlock(private_vblank->dpy);
1387 /* LCOV_EXCL_STOP */
1390 return TDM_ERROR_NONE;
1394 tdm_vblank_wait_seq(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1395 unsigned int sequence, tdm_vblank_handler func, void *user_data)
1397 tdm_private_vblank *private_vblank = vblank;
1398 unsigned int interval;
1400 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1401 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1403 /* if the sequence of vblank reaches the max value, sequence can be 0. */
1405 if (private_vblank->last_seq == 0) {
1406 TDM_WRN("can't calculate interval with sequence(%u)", sequence);
1408 } else if (sequence > private_vblank->last_seq ||
1409 TDM_VBLANK_SEQ_REACHED_MAX(sequence, private_vblank->last_seq)) {
1410 double last, curr, seq_target;
1412 last = private_vblank->last_time;
1413 curr = tdm_helper_get_time();
1414 seq_target = last + private_vblank->vblank_gap * (sequence - private_vblank->last_seq);
1416 /* If target is old or too close(1ms) to current, we call the handler immediately.
1417 * 2ms? it seems too much.
1419 if (seq_target < curr) {
1420 func(vblank, TDM_ERROR_NONE, sequence,
1421 TDM_TIME_SEC(seq_target), TDM_TIME_USEC(seq_target),
1423 return TDM_ERROR_NONE;
1424 } else if ((seq_target - curr) < 0.001) { /* 1ms */
1425 func(vblank, TDM_ERROR_NONE, sequence,
1426 TDM_TIME_SEC(curr), TDM_TIME_USEC(curr),
1428 return TDM_ERROR_NONE;
1431 interval = (unsigned int)((seq_target - curr) / private_vblank->vblank_gap + TDM_TIME_MARGIN) + 1;
1433 /* this seems error. But we handle this like normal to avoid the unexpected error in cliend side */
1434 TDM_WRN("sequence(%u) should be over the last sequence(%u)", sequence, private_vblank->last_seq);
1435 func(vblank, TDM_ERROR_NONE, private_vblank->last_seq,
1436 TDM_TIME_SEC(private_vblank->last_time), TDM_TIME_USEC(private_vblank->last_time),
1438 return TDM_ERROR_NONE;
1441 return tdm_vblank_wait(vblank, req_sec, req_usec, interval, func, user_data);
1444 /* LCOV_EXCL_START */
1446 tdm_vblank_set_add_front(tdm_vblank *vblank, unsigned int add_front)
1448 tdm_private_vblank *private_vblank = vblank;
1450 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1452 TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
1454 if (private_vblank->add_front == add_front)
1455 return TDM_ERROR_NONE;
1457 private_vblank->add_front = add_front;
1459 return TDM_ERROR_NONE;
1461 /* LCOV_EXCL_STOP */
1464 tdm_vblank_set_resource(tdm_vblank *vblank, struct wl_resource *resource)
1466 tdm_private_vblank *private_vblank = vblank;
1468 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1469 TDM_RETURN_VAL_IF_FAIL(private_vblank->resource == NULL, TDM_ERROR_OPERATION_FAILED);
1471 private_vblank->resource = resource;
1473 return TDM_ERROR_NONE;
1477 tdm_vblank_get_stamp(tdm_vblank *vblank)
1479 tdm_private_vblank *private_vblank = vblank;
1481 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1483 return private_vblank->stamp;
1486 /* LCOV_EXCL_START */
1488 tdm_vblank_get_vblank_list_information(tdm_display *dpy, char *reply, int *len)
1490 tdm_private_vblank *v = NULL;
1492 TDM_SNPRINTF(reply, len, "[Client Vblank List]\n");
1493 TDM_SNPRINTF(reply, len, "* global fps: %u\n", vblank_global_fps);
1494 TDM_SNPRINTF(reply, len, "---------------------------------------------------------------\n");
1495 TDM_SNPRINTF(reply, len, "name fps ignore offset fake process\n");
1496 TDM_SNPRINTF(reply, len, "---------------------------------------------------------------\n");
1498 pthread_mutex_lock(&valid_list_lock);
1499 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
1500 const char *proc_name = NULL;
1504 struct wl_client *client = wl_resource_get_client(v->resource);
1506 wl_client_get_credentials(client, &pid, NULL, NULL);
1507 proc_name = tdm_server_get_client_name(pid);
1511 TDM_SNPRINTF(reply, len, "%-12s %u %u %d %u %s (pid: %u)\n",
1512 v->name, v->fps, v->ignore_global_fps, v->offset, v->enable_fake,
1513 (proc_name) ? proc_name : "Unknown", pid);
1515 pthread_mutex_unlock(&valid_list_lock);
1517 TDM_SNPRINTF(reply, len, "\n");
1519 /* LCOV_EXCL_STOP */