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;
129 } tdm_private_vblank;
131 struct _tdm_vblank_wait_info {
132 struct list_head link;
133 struct list_head valid_link;
138 unsigned int interval;
140 tdm_vblank_handler func;
142 tdm_private_vblank *private_vblank;
144 tdm_vblank_wait_type type;
147 unsigned int target_seq;
150 typedef struct _tdm_vblank_create_handler_info {
151 struct list_head link;
153 tdm_vblank_create_handler func;
155 } tdm_vblank_create_handler_info;
157 /* valid_vblank_list and valid_wait_list should be protected by valid_list_lock because
158 * tdm_vblank can be used in multi-thread.
160 static pthread_mutex_t valid_list_lock;
161 static struct list_head valid_vblank_list;
162 static struct list_head valid_wait_list;
163 static struct list_head create_handler_list;
164 static unsigned int vblank_list_inited;
165 static unsigned int vblank_global_fps;
166 static double stamp = 0;
168 static tdm_error _tdm_vblank_cb_vblank_SW(void *user_data);
169 static tdm_error _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info);
170 static void _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
171 unsigned int tv_sec, unsigned int tv_usec,
176 _print_list(struct list_head *list)
178 tdm_vblank_wait_info *w = NULL;
180 LIST_FOR_EACH_ENTRY(w, list, link) {
181 printf(" %d", w->interval);
188 tdm_vblank_is_valid(tdm_vblank *vblank)
190 tdm_private_vblank *v = NULL;
192 if (vblank && vblank_list_inited) {
193 pthread_mutex_lock(&valid_list_lock);
194 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
195 if (v == (tdm_private_vblank *)vblank) {
196 pthread_mutex_unlock(&valid_list_lock);
200 pthread_mutex_unlock(&valid_list_lock);
207 _tdm_vblank_valid_list_add(struct list_head *valid_link, struct list_head *valid_list)
209 pthread_mutex_lock(&valid_list_lock);
210 LIST_ADDTAIL(valid_link, valid_list);
211 pthread_mutex_unlock(&valid_list_lock);
215 _tdm_vblank_valid_list_del(struct list_head *valid_link)
217 pthread_mutex_lock(&valid_list_lock);
218 LIST_DEL(valid_link);
219 pthread_mutex_unlock(&valid_list_lock);
222 static inline tdm_private_vblank*
223 _tdm_vblank_find(double vblank_stamp)
225 tdm_private_vblank *v = NULL;
230 pthread_mutex_lock(&valid_list_lock);
231 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
232 if (v->stamp == vblank_stamp) {
233 pthread_mutex_unlock(&valid_list_lock);
237 pthread_mutex_unlock(&valid_list_lock);
242 static inline unsigned int
243 _tdm_vblank_check_valid_wait(tdm_vblank_wait_info *wait_info)
245 tdm_vblank_wait_info *w = NULL;
250 pthread_mutex_lock(&valid_list_lock);
251 LIST_FOR_EACH_ENTRY(w, &valid_wait_list, valid_link) {
252 if (w == wait_info) {
253 pthread_mutex_unlock(&valid_list_lock);
257 pthread_mutex_unlock(&valid_list_lock);
262 static inline unsigned int
263 _tdm_vblank_find_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
265 tdm_vblank_wait_info *w = NULL;
270 LIST_FOR_EACH_ENTRY(w, list, link) {
271 if (w->stamp == wait_info->stamp)
279 _tdm_vblank_insert_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
281 tdm_vblank_wait_info *w = NULL;
282 tdm_vblank_wait_info *found = NULL;
284 if (LIST_IS_EMPTY(list)) {
285 LIST_ADDTAIL(&wait_info->link, list);
289 LIST_FOR_EACH_ENTRY(w, list, link) {
290 if (wait_info->type == VBLANK_TYPE_SW) {
291 if (wait_info->target_time == 0)
292 TDM_NEVER_GET_HERE();
293 if (w->target_time <= wait_info->target_time) {
298 if (w->interval <= wait_info->interval) {
306 LIST_ADD(&wait_info->link, &found->link);
308 LIST_ADDTAIL(&wait_info->link, list->next);
312 _tdm_vblank_change_to_SW(tdm_private_vblank *private_vblank)
314 tdm_vblank_wait_info *w = NULL, *ww = NULL;
316 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
319 tdm_display_lock(private_vblank->dpy);
320 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, w);
321 tdm_display_unlock(private_vblank->dpy);
323 w->type = VBLANK_TYPE_SW_FAKE;
324 _tdm_vblank_wait_SW(w);
329 _tdm_vblank_free_HW_wait(tdm_private_vblank *private_vblank, tdm_error error, unsigned int call_cb)
331 tdm_vblank_wait_info *w = NULL, *ww = NULL;
333 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
335 _tdm_vblank_valid_list_del(&w->valid_link);
337 tdm_display_lock(private_vblank->dpy);
338 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, w);
339 tdm_display_unlock(private_vblank->dpy);
341 VDB("wait(%p) last(%.6f) sequence(%u) done (error:%d, call_cb:%u)",
342 w, 0, w->target_seq, error, call_cb);
344 if (call_cb && w->func)
345 w->func(private_vblank, error, 0, 0, 0, w->user_data);
352 _tdm_vblank_update_output_info(tdm_private_vblank *private_vblank)
354 tdm_output *output = private_vblank->output;
355 tdm_output_conn_status connection = TDM_OUTPUT_CONN_STATUS_DISCONNECTED;
356 unsigned int vrefresh = 0;
359 ret = tdm_output_get_conn_status(output, &connection);
360 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
362 if (connection != TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
363 const tdm_output_mode *mode = NULL;
364 tdm_output_get_mode(output, &mode);
366 vrefresh = mode->vrefresh;
368 VWR("mode not setted!!!");
372 VWR("vrefresh can't be zero !!!");
373 vrefresh = TDM_VBLANK_DEFAULT_VREFRESH;
376 private_vblank->connection = connection;
377 private_vblank->vrefresh = vrefresh;
378 private_vblank->HW_vblank_gap = 1.0 / private_vblank->vrefresh;
380 if (private_vblank->fps_changeable)
381 private_vblank->fps = vrefresh;
383 VIN("connection(%d) vrefresh(%d) fps(%d) fps_changeable(%d)",
384 private_vblank->connection,
385 private_vblank->vrefresh, private_vblank->fps, private_vblank->fps_changeable);
388 /* LCOV_EXCL_START */
390 _tdm_vblank_cb_output_change(tdm_output *output, tdm_output_change_type type,
391 tdm_value value, void *user_data)
393 tdm_private_vblank *private_vblank = user_data;
395 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
398 case TDM_OUTPUT_CHANGE_DPMS:
399 VIN("dpms %s", tdm_dpms_str(value.u32));
400 private_vblank->check_HW_or_SW = 1;
401 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(value.u32)) {
402 if (private_vblank->enable_fake)
403 _tdm_vblank_change_to_SW(private_vblank);
405 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_DPMS_OFF, 1);
408 case TDM_OUTPUT_CHANGE_CONNECTION:
409 if (private_vblank->connection == value.u32)
411 VIN("output %s", tdm_status_str(value.u32));
412 _tdm_vblank_update_output_info(private_vblank);
413 private_vblank->check_HW_or_SW = 1;
414 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
415 if (private_vblank->enable_fake)
416 _tdm_vblank_change_to_SW(private_vblank);
418 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_OUTPUT_DISCONNECTED, 1);
428 tdm_vblank_set_client_vblank_fps(unsigned int pid, const char *name, unsigned int fps)
430 tdm_private_vblank *v = NULL;
432 TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
433 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
435 TDM_INFO("pid: %u, name: %s, fps: %d", pid, name, fps);
437 pthread_mutex_lock(&valid_list_lock);
438 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
439 struct wl_client *client;
440 pid_t client_pid = 0;
445 client = wl_resource_get_client(v->resource);
449 wl_client_get_credentials(client, &client_pid, NULL, NULL);
451 if (client_pid != pid)
454 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
455 if (strncmp(v->name, name, TDM_NAME_LEN))
459 tdm_vblank_set_fps(v, fps);
461 TDM_INFO("(pid:%u) '%s' fps changed: %d", pid, v->name, fps);
463 pthread_mutex_unlock(&valid_list_lock);
465 return TDM_ERROR_NONE;
469 tdm_vblank_enable_global_fps(unsigned int enable, unsigned int fps)
471 tdm_private_vblank *v = NULL;
474 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
476 TDM_INFO("global fps: %s fps(%d)", (enable) ? "enabled" : "disabled", fps);
478 pthread_mutex_lock(&valid_list_lock);
480 vblank_global_fps = (enable) ? fps : 0;
482 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
483 /* skip if vblank is created in server side */
487 v->check_HW_or_SW = 1;
489 pthread_mutex_unlock(&valid_list_lock);
491 return TDM_ERROR_NONE;
495 tdm_vblank_cb_vblank_create(tdm_vblank *vblank, double vblank_stamp)
497 tdm_private_vblank *private_vblank;
498 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
500 TDM_RETURN_VAL_IF_FAIL(vblank || vblank_stamp > 0, TDM_ERROR_INVALID_PARAMETER);
503 private_vblank = vblank;
505 private_vblank = _tdm_vblank_find(vblank_stamp);
506 if (!private_vblank) {
507 TDM_DBG("can't find vblank(%.0f) from valid_list", vblank_stamp);
508 return TDM_ERROR_NONE;
512 if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
513 tdm_thread_cb_vblank_create vblank_create;
514 tdm_private_display *private_display = private_vblank->dpy;
517 vblank_create.base.type = TDM_THREAD_CB_VBLANK_CREATE;
518 vblank_create.base.length = sizeof vblank_create;
519 vblank_create.vblank_stamp = private_vblank->stamp;
521 ret = tdm_thread_send_cb(private_display->private_loop, &vblank_create.base);
522 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
524 return TDM_ERROR_NONE;
527 LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
528 private_vblank->in_create_handler = 1;
529 ch_info->func(private_vblank, ch_info->user_data);
530 private_vblank->in_create_handler = 0;
533 return TDM_ERROR_NONE;
537 tdm_vblank_add_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
539 tdm_vblank_create_handler_info *ch_info;
541 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
543 /* we don't allow adding a create handler in sub-thread because tdm_vblank_create()
544 * can be called in both threads and tdm_thread_send_cb supports only one-way
547 if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
548 TDM_ERR("add_create_handler should be called in main thread");
549 return TDM_ERROR_BAD_REQUEST;
552 ch_info = calloc(1, sizeof *ch_info);
553 TDM_RETURN_VAL_IF_FAIL(ch_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
555 ch_info->func = func;
556 ch_info->user_data = user_data;
558 LIST_ADDTAIL(&ch_info->link, &create_handler_list);
560 return TDM_ERROR_NONE;
564 tdm_vblank_remove_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
566 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
568 /* we don't allow adding a create handler in sub-thread because tdm_vblank_create()
569 * can be called in both threads and tdm_thread_send_cb supports only one-way
572 if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
573 TDM_ERR("remove_create_handler should be called in main thread");
577 LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
578 if (ch_info->func != func && ch_info->user_data != user_data)
581 LIST_DEL(&ch_info->link);
588 tdm_vblank_init(tdm_display *dpy)
590 if (vblank_list_inited)
591 return TDM_ERROR_NONE;
593 if (pthread_mutex_init(&valid_list_lock, NULL)) {
594 TDM_ERR("mutex init failed: %m");
595 return TDM_ERROR_OUT_OF_MEMORY;
598 LIST_INITHEAD(&valid_vblank_list);
599 LIST_INITHEAD(&valid_wait_list);
600 LIST_INITHEAD(&create_handler_list);
602 vblank_list_inited = 1;
604 return TDM_ERROR_NONE;
608 tdm_vblank_deinit(tdm_display *dpy)
610 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
612 if (!vblank_list_inited)
615 if (!LIST_IS_EMPTY(&valid_vblank_list))
616 TDM_NEVER_GET_HERE();
618 if (!LIST_IS_EMPTY(&valid_wait_list))
619 TDM_NEVER_GET_HERE();
621 LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
622 LIST_DEL(&ch_info->link);
626 pthread_mutex_destroy(&valid_list_lock);
628 vblank_list_inited = 0;
632 tdm_vblank_create(tdm_display *dpy, tdm_output *output, tdm_error *error)
634 tdm_private_vblank *private_vblank;
637 TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_display_is_valid(dpy), TDM_ERROR_INVALID_PARAMETER, NULL);
638 TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_output_is_valid(output), TDM_ERROR_INVALID_PARAMETER, NULL);
641 *error = TDM_ERROR_NONE;
643 private_vblank = calloc(1, sizeof * private_vblank);
644 if (!private_vblank) {
645 /* LCOV_EXCL_START */
647 *error = TDM_ERROR_OUT_OF_MEMORY;
653 tdm_output_add_change_handler(output, _tdm_vblank_cb_output_change, private_vblank);
655 private_vblank->stamp = ++stamp;
656 private_vblank->owner_tid = syscall(SYS_gettid);
657 private_vblank->dpy = dpy;
658 private_vblank->output = output;
659 private_vblank->check_HW_or_SW = 1;
660 private_vblank->fps_changeable = 1;
661 private_vblank->last_interval = -1;
663 _tdm_vblank_update_output_info(private_vblank);
665 strncpy(private_vblank->name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN - 1);
666 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
668 LIST_INITHEAD(&private_vblank->HW_wait_list);
669 LIST_INITHEAD(&private_vblank->SW_wait_list);
671 _tdm_vblank_valid_list_add(&private_vblank->valid_link, &valid_vblank_list);
673 VIN("created. vrefresh(%d) connection(%d)",
674 private_vblank->vrefresh, private_vblank->connection);
676 tdm_display_lock(private_vblank->dpy);
677 tdm_vblank_cb_vblank_create(NULL, private_vblank->stamp);
678 tdm_display_unlock(private_vblank->dpy);
680 return (tdm_vblank *)private_vblank;
684 tdm_vblank_destroy(tdm_vblank *vblank)
686 tdm_private_vblank *private_vblank = vblank;
687 tdm_vblank_wait_info *w = NULL, *ww = NULL;
689 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(vblank));
691 if (private_vblank->in_create_handler) {
692 TDM_ERR("NOT allowed to be called in a create handler");
696 _tdm_vblank_valid_list_del(&private_vblank->valid_link);
698 if (private_vblank->SW_timer) {
699 tdm_display_lock(private_vblank->dpy);
700 tdm_event_loop_source_remove(private_vblank->SW_timer);
701 tdm_display_unlock(private_vblank->dpy);
704 tdm_output_remove_change_handler(private_vblank->output,
705 _tdm_vblank_cb_output_change, private_vblank);
707 _tdm_vblank_free_HW_wait(private_vblank, 0, 0);
709 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
711 _tdm_vblank_valid_list_del(&w->valid_link);
717 free(private_vblank);
721 tdm_vblank_get_client_pid(tdm_vblank *vblank, pid_t *pid)
723 tdm_private_vblank *private_vblank = vblank;
724 struct wl_client *client;
726 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
727 TDM_RETURN_VAL_IF_FAIL(pid != NULL, TDM_ERROR_INVALID_PARAMETER);
729 if (!private_vblank->resource) {
731 return TDM_ERROR_NONE;
734 client = wl_resource_get_client(private_vblank->resource);
737 return TDM_ERROR_NONE;
740 wl_client_get_credentials(client, pid, NULL, NULL);
742 return TDM_ERROR_NONE;
746 tdm_vblank_set_name(tdm_vblank *vblank, const char *name)
748 tdm_private_vblank *private_vblank = vblank;
750 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
753 name = TDM_VBLANK_DEFAULT_NAME;
755 strncpy(private_vblank->name, name, TDM_NAME_LEN - 1);
756 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
758 VIN("name(%s)", name);
760 return TDM_ERROR_NONE;
764 tdm_vblank_get_name(tdm_vblank *vblank, const char **name)
766 tdm_private_vblank *private_vblank = vblank;
768 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
769 TDM_RETURN_VAL_IF_FAIL(name != NULL, TDM_ERROR_INVALID_PARAMETER);
771 *name = (const char*)private_vblank->name;
773 return TDM_ERROR_NONE;
777 tdm_vblank_set_fps(tdm_vblank *vblank, unsigned int fps)
779 tdm_private_vblank *private_vblank = vblank;
781 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
782 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
784 if (private_vblank->fps_fixed) {
785 VIN("fps(%d) can't be changed", private_vblank->fps);
786 return TDM_ERROR_NONE;
789 private_vblank->fps_changeable = 0;
791 if (private_vblank->fps == fps)
792 return TDM_ERROR_NONE;
794 private_vblank->fps = fps;
795 private_vblank->check_HW_or_SW = 1;
797 VIN("fps(%d) changed", fps);
799 return TDM_ERROR_NONE;
803 tdm_vblank_get_fps(tdm_vblank *vblank, unsigned int *fps)
805 tdm_private_vblank *private_vblank = vblank;
807 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
808 TDM_RETURN_VAL_IF_FAIL(fps != NULL, TDM_ERROR_INVALID_PARAMETER);
810 *fps = private_vblank->fps;
812 return TDM_ERROR_NONE;
816 tdm_vblank_set_fixed_fps(tdm_vblank *vblank, unsigned int fps)
818 tdm_private_vblank *private_vblank = vblank;
820 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
821 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
823 private_vblank->fps_changeable = 0;
824 private_vblank->fps_fixed = 1;
826 if (private_vblank->fps == fps)
827 return TDM_ERROR_NONE;
829 private_vblank->fps = fps;
830 private_vblank->check_HW_or_SW = 1;
832 VIN("fps(%d) fixed", fps);
834 return TDM_ERROR_NONE;
838 tdm_vblank_ignore_global_fps(tdm_vblank *vblank, unsigned int ignore)
840 tdm_private_vblank *private_vblank = vblank;
842 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
844 if (private_vblank->ignore_global_fps == ignore)
845 return TDM_ERROR_NONE;
847 private_vblank->ignore_global_fps = ignore;
848 private_vblank->check_HW_or_SW = 1;
850 VIN("ignore_global_fps(%d)", private_vblank->ignore_global_fps);
852 return TDM_ERROR_NONE;
856 tdm_vblank_set_offset(tdm_vblank *vblank, int offset)
858 tdm_private_vblank *private_vblank = vblank;
860 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
862 if (private_vblank->offset == offset)
863 return TDM_ERROR_NONE;
865 private_vblank->offset = offset;
866 private_vblank->check_HW_or_SW = 1;
868 VIN("offset(%d)", private_vblank->offset);
870 return TDM_ERROR_NONE;
874 tdm_vblank_get_offset(tdm_vblank *vblank, int *offset)
876 tdm_private_vblank *private_vblank = vblank;
878 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
879 TDM_RETURN_VAL_IF_FAIL(offset != NULL, TDM_ERROR_INVALID_PARAMETER);
881 *offset = private_vblank->offset;
883 return TDM_ERROR_NONE;
887 tdm_vblank_set_enable_fake(tdm_vblank *vblank, unsigned int enable_fake)
889 tdm_private_vblank *private_vblank = vblank;
891 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
893 if (private_vblank->enable_fake == enable_fake)
894 return TDM_ERROR_NONE;
896 private_vblank->enable_fake = enable_fake;
898 VIN("enable_fake(%d)", private_vblank->enable_fake);
900 return TDM_ERROR_NONE;
904 tdm_vblank_get_enable_fake(tdm_vblank *vblank, unsigned int *enable_fake)
906 tdm_private_vblank *private_vblank = vblank;
908 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
909 TDM_RETURN_VAL_IF_FAIL(enable_fake != NULL, TDM_ERROR_INVALID_PARAMETER);
911 *enable_fake = private_vblank->enable_fake;
913 return TDM_ERROR_NONE;
917 _tdm_vblank_sw_timer_update(tdm_private_vblank *private_vblank)
919 tdm_vblank_wait_info *first_wait_info = NULL;
924 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
926 return TDM_ERROR_OPERATION_FAILED;
929 first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
930 curr = tdm_helper_get_time();
931 target = first_wait_info->target_time;
933 /* ms_delay should be more that 1 */
937 ms_delay = ceil((target - curr) * 1000.0);
943 VER("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
945 VDB("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
947 tdm_display_lock(private_vblank->dpy);
949 if (!private_vblank->SW_timer) {
950 private_vblank->SW_timer =
951 tdm_event_loop_add_timer_handler(private_vblank->dpy,
952 _tdm_vblank_cb_vblank_SW,
955 if (!private_vblank->SW_timer) {
956 tdm_display_unlock(private_vblank->dpy);
957 VER("couldn't add timer");
960 VIN("Create SW timer");
963 private_vblank->last_interval = ms_delay;
965 ret = tdm_event_loop_source_timer_update(private_vblank->SW_timer, ms_delay);
966 if (ret != TDM_ERROR_NONE) {
967 /* LCOV_EXCL_START */
968 tdm_display_unlock(private_vblank->dpy);
969 VER("couldn't update timer");
974 tdm_display_unlock(private_vblank->dpy);
976 return TDM_ERROR_NONE;
980 _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
981 unsigned int tv_sec, unsigned int tv_usec,
984 tdm_vblank_wait_info *wait_info = user_data;
985 tdm_private_vblank *private_vblank;
987 if (!_tdm_vblank_check_valid_wait(wait_info)) {
988 TDM_DBG("can't find wait(%p) from valid_wait_list", wait_info);
992 private_vblank = wait_info->private_vblank;
993 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
995 if (!_tdm_vblank_find_wait(wait_info, &private_vblank->HW_wait_list)) {
996 VDB("can't find wait(%p)", wait_info);
1000 if (wait_info->type == VBLANK_TYPE_HW_SW) {
1003 LIST_DEL(&wait_info->link);
1005 /* kernel sends the wrong time of first vblank event. and the time of
1006 * second vblank is correct.
1008 wait_info->target_time = TDM_TIME(tv_sec, tv_usec);
1009 wait_info->target_time += (((double)private_vblank->offset) / 1000.0);
1011 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1013 ret = _tdm_vblank_sw_timer_update(private_vblank);
1015 /* wait_info will be freed in _tdm_vblank_cb_vblank_SW() */
1016 if (ret == TDM_ERROR_NONE) {
1017 VDB("wait(%p) SW timer", wait_info);
1021 VWR("couldn't update sw timer");
1024 LIST_DEL(&wait_info->link);
1025 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1027 /* tv_sec & tv_usec shouldn't be zero. But sometimes they are zero in some hardware.
1028 * We need to prohibit that last_time becomes zero because "last_time == 0" means
1029 * that a tdm_vblank object is just created and doesn't have the first vblank event.
1030 * If last_time becomes 0, it would make issue.
1032 if (tv_sec == 0 && tv_usec == 0) {
1033 double curr = tdm_helper_get_time();
1034 tv_sec = TDM_TIME_SEC(curr);
1035 tv_usec = TDM_TIME_USEC(curr);
1038 private_vblank->last_seq = wait_info->target_seq;
1039 private_vblank->last_time = TDM_TIME(tv_sec, tv_usec);
1041 VDB("wait(%p) last(%.6f) sequence(%u) done", wait_info, private_vblank->last_time, wait_info->target_seq);
1043 if (wait_info->func)
1044 wait_info->func(private_vblank, TDM_ERROR_NONE, wait_info->target_seq,
1045 tv_sec, tv_usec, wait_info->user_data);
1051 _tdm_vblank_wait_HW(tdm_vblank_wait_info *wait_info)
1053 tdm_private_vblank *private_vblank = wait_info->private_vblank;
1057 if (private_vblank->last_type != VBLANK_EVENT_TYPE_HW) {
1058 VIN("Use HW vblank");
1059 private_vblank->last_type = VBLANK_EVENT_TYPE_HW;
1062 _tdm_vblank_insert_wait(wait_info, &private_vblank->HW_wait_list);
1064 hw_interval = wait_info->interval * private_vblank->quotient;
1066 if (private_vblank->last_time == 0) {
1067 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1068 private_vblank->last_seq = 0;
1069 private_vblank->last_time = tdm_helper_get_time();
1071 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1072 wait_info->target_seq = 1;
1074 VDB("wait(%p) last(%.6f) hw_itvl(%d) targ_seq(%u)",
1075 wait_info, private_vblank->last_time, hw_interval, wait_info->target_seq);
1077 double last, prev, req, curr, target;
1080 last = private_vblank->last_time;
1081 req = wait_info->req_time;
1083 /* make sure that req time is bigger than last. */
1087 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1088 prev = last + private_vblank->vblank_gap * skip;
1090 curr = tdm_helper_get_time();
1092 while (target < curr)
1093 target += (private_vblank->vblank_gap * wait_info->interval);
1095 hw_interval = (unsigned int)((target - curr) / private_vblank->HW_vblank_gap + TDM_TIME_MARGIN) + 1;
1097 wait_info->target_seq = private_vblank->last_seq;
1098 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1100 if (hw_interval > 300)
1101 VER("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);
1105 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1106 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1107 skip, hw_interval, wait_info->target_seq);
1110 private_vblank->last_interval = hw_interval;
1112 if (private_vblank->add_front)
1113 ret = tdm_output_wait_vblank_add_front(private_vblank->output, hw_interval, 0,
1114 _tdm_vblank_cb_vblank_HW, wait_info);
1116 ret = tdm_output_wait_vblank(private_vblank->output, hw_interval, 0,
1117 _tdm_vblank_cb_vblank_HW, wait_info);
1119 if (ret != TDM_ERROR_NONE) {
1120 LIST_DEL(&wait_info->link);
1124 VDB("wait(%p) waiting", wait_info);
1126 return TDM_ERROR_NONE;
1130 _tdm_vblank_cb_vblank_SW(void *user_data)
1132 tdm_private_vblank *private_vblank = user_data;
1134 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(private_vblank), TDM_ERROR_OPERATION_FAILED);
1136 return tdm_vblank_cb_vblank_SW(private_vblank, 0);
1140 tdm_vblank_cb_vblank_SW(tdm_vblank *vblank, double vblank_stamp)
1142 tdm_private_vblank *private_vblank;
1143 tdm_vblank_wait_info *first_wait_info = NULL, *w = NULL, *ww = NULL;
1145 TDM_RETURN_VAL_IF_FAIL(vblank || vblank_stamp > 0, TDM_ERROR_INVALID_PARAMETER);
1148 private_vblank = vblank;
1150 private_vblank = _tdm_vblank_find(vblank_stamp);
1151 if (!private_vblank) {
1152 TDM_DBG("can't find vblank(%.0f) from valid_list", vblank_stamp);
1153 return TDM_ERROR_NONE;
1157 if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1158 tdm_thread_cb_vblank_sw vblank_sw;
1159 tdm_private_display *private_display = private_vblank->dpy;
1162 vblank_sw.base.type = TDM_THREAD_CB_VBLANK_SW;
1163 vblank_sw.base.length = sizeof vblank_sw;
1164 vblank_sw.vblank_stamp = private_vblank->stamp;
1166 ret = tdm_thread_send_cb(private_display->private_loop, &vblank_sw.base);
1167 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
1169 return TDM_ERROR_NONE;
1172 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1173 VER("no wait_info");
1174 return TDM_ERROR_OPERATION_FAILED;
1177 first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1178 TDM_RETURN_VAL_IF_FAIL(first_wait_info != NULL, TDM_ERROR_OPERATION_FAILED);
1180 if (private_vblank->last_seq >= first_wait_info->target_seq)
1181 TDM_ERR("last_seq(%u) target_seq(%u)", private_vblank->last_seq, first_wait_info->target_seq);
1183 private_vblank->last_seq = first_wait_info->target_seq;
1184 private_vblank->last_time = first_wait_info->target_time;
1186 VDB("wait(%p) last(%.6f) sequence(%u) done", first_wait_info, private_vblank->last_time, first_wait_info->target_seq);
1188 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
1189 if (w->target_time != first_wait_info->target_time)
1193 _tdm_vblank_valid_list_del(&w->valid_link);
1196 tdm_display_unlock(private_vblank->dpy);
1197 w->func(private_vblank, TDM_ERROR_NONE, w->target_seq,
1198 TDM_TIME_SEC(w->target_time), TDM_TIME_USEC(w->target_time),
1200 tdm_display_lock(private_vblank->dpy);
1206 return TDM_ERROR_NONE;
1210 _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info)
1212 tdm_private_vblank *private_vblank = wait_info->private_vblank;
1215 if (private_vblank->last_type != VBLANK_EVENT_TYPE_SW) {
1216 VIN("Use SW vblank");
1217 private_vblank->last_type = VBLANK_EVENT_TYPE_SW;
1220 if (private_vblank->last_time == 0) {
1221 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1222 private_vblank->last_seq = 0;
1223 private_vblank->last_time = tdm_helper_get_time();
1225 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1226 wait_info->target_seq = 1;
1227 wait_info->target_time = private_vblank->last_time + 0.001;
1229 VDB("wait(%p) last(%.6f) target(%.6f) target sequence(%u)",
1230 wait_info, private_vblank->last_time, wait_info->target_time, wait_info->target_seq);
1232 double last, prev, req, curr, target;
1235 last = private_vblank->last_time;
1236 req = wait_info->req_time;
1238 /* make sure that req time is bigger than last. */
1242 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1243 prev = last + private_vblank->vblank_gap * skip;
1245 curr = tdm_helper_get_time();
1246 target = prev + private_vblank->vblank_gap * wait_info->interval;
1248 while (target < curr)
1249 target += private_vblank->vblank_gap;
1251 wait_info->target_seq = private_vblank->last_seq;
1252 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1254 wait_info->target_time = target;
1256 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) targ_seq(%u)",
1257 wait_info, last, req - last, prev - last, curr - last,
1258 target, target - last, skip, wait_info->target_seq);
1261 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1263 ret = _tdm_vblank_sw_timer_update(private_vblank);
1264 if (ret != TDM_ERROR_NONE) {
1265 /* LCOV_EXCL_START */
1266 LIST_DEL(&wait_info->link);
1267 VER("couldn't update sw timer");
1269 /* LCOV_EXCL_STOP */
1272 return TDM_ERROR_NONE;
1276 tdm_vblank_wait(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1277 unsigned int interval, tdm_vblank_handler func, void *user_data)
1279 tdm_private_vblank *private_vblank = vblank;
1280 tdm_vblank_wait_info *wait_info;
1281 tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1285 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1286 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1288 if (private_vblank->in_create_handler) {
1289 TDM_ERR("NOT allowed to be called in a create handler");
1290 return TDM_ERROR_BAD_REQUEST;
1293 if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1294 TDM_ERR("SHOULD be called in the owner thread(%d)", (int)private_vblank->owner_tid);
1295 return TDM_ERROR_BAD_REQUEST;
1298 tdm_output_get_dpms(private_vblank->output, &dpms);
1300 if (!private_vblank->enable_fake) {
1301 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
1302 VER("can't wait a vblank: output disconnected");
1303 return TDM_ERROR_OUTPUT_DISCONNECTED;
1305 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms)) {
1306 VER("can't wait a vblank: DPMS %s", tdm_dpms_str(dpms));
1307 return TDM_ERROR_DPMS_OFF;
1311 wait_info = calloc(1, sizeof * wait_info);
1313 /* LCOV_EXCL_START */
1314 VER("alloc failed");
1315 return TDM_ERROR_OUT_OF_MEMORY;
1316 /* LCOV_EXCL_STOP */
1319 /* set request time to current time if 0. This function seems to be called in server side. */
1320 if (req_sec == 0 && req_usec == 0) {
1321 double curr = tdm_helper_get_time();
1322 req_sec = TDM_TIME_SEC(curr);
1323 req_usec = TDM_TIME_USEC(curr);
1326 LIST_INITHEAD(&wait_info->link);
1328 _tdm_vblank_valid_list_add(&wait_info->valid_link, &valid_wait_list);
1330 wait_info->stamp = ++stamp;
1331 wait_info->req_time = TDM_TIME(req_sec, req_usec);
1332 wait_info->interval = interval;
1333 wait_info->func = func;
1334 wait_info->user_data = user_data;
1335 wait_info->private_vblank = private_vblank;
1337 if (private_vblank->ignore_global_fps ||
1338 vblank_global_fps == 0 ||
1339 private_vblank->fps < vblank_global_fps)
1340 fps = private_vblank->fps;
1342 fps = vblank_global_fps;
1344 if (private_vblank->check_HW_or_SW) {
1345 private_vblank->check_HW_or_SW = 0;
1346 private_vblank->vblank_gap = 1.0 / fps;
1347 private_vblank->quotient = private_vblank->vrefresh / fps;
1350 /* 1) if fps != factor of vrefresh, SW timer
1351 * 2) if fps == factor of vrefresh && dpms == off, SW timer (Fake HW vblank)
1352 * 2) if fps == factor of vrefresh && dpms == on && offset == 0, HW vblank
1353 * 3) if fps == factor of vrefresh && dpms == on && offset != 0, HW vblank + SW timer
1354 * In case of 1), we really don't need to align with HW vblank.
1356 if (private_vblank->vrefresh % fps)
1357 wait_info->type = VBLANK_TYPE_SW;
1358 else if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms) ||
1359 private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED)
1360 wait_info->type = VBLANK_TYPE_SW_FAKE;
1361 else if (private_vblank->offset == 0)
1362 wait_info->type = VBLANK_TYPE_HW;
1364 wait_info->type = VBLANK_TYPE_HW_SW;
1366 if (wait_info->type == VBLANK_TYPE_SW || wait_info->type == VBLANK_TYPE_SW_FAKE) {
1367 ret = _tdm_vblank_wait_SW(wait_info);
1368 if (ret != TDM_ERROR_NONE)
1369 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1371 ret = _tdm_vblank_wait_HW(wait_info);
1372 if (ret != TDM_ERROR_NONE)
1373 TDM_ERR("_tdm_vblank_wait_HW failed: ret(%d)", ret);
1375 if (ret == TDM_ERROR_OUTPUT_DISCONNECTED || ret == TDM_ERROR_DPMS_OFF) {
1376 ret = _tdm_vblank_wait_SW(wait_info);
1377 if (ret != TDM_ERROR_NONE)
1378 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1382 if (ret != TDM_ERROR_NONE) {
1383 /* LCOV_EXCL_START */
1384 LIST_DEL(&wait_info->link);
1385 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1387 tdm_display_lock(private_vblank->dpy);
1388 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, wait_info);
1389 tdm_display_unlock(private_vblank->dpy);
1393 /* LCOV_EXCL_STOP */
1396 return TDM_ERROR_NONE;
1400 tdm_vblank_wait_seq(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1401 unsigned int sequence, tdm_vblank_handler func, void *user_data)
1403 tdm_private_vblank *private_vblank = vblank;
1404 unsigned int interval;
1406 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1407 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1409 /* if the sequence of vblank reaches the max value, sequence can be 0. */
1411 if (private_vblank->last_seq == 0) {
1412 TDM_WRN("can't calculate interval with sequence(%u)", sequence);
1414 } else if (sequence > private_vblank->last_seq ||
1415 TDM_VBLANK_SEQ_REACHED_MAX(sequence, private_vblank->last_seq)) {
1416 double last, curr, seq_target;
1418 last = private_vblank->last_time;
1419 curr = tdm_helper_get_time();
1420 seq_target = last + private_vblank->vblank_gap * (sequence - private_vblank->last_seq);
1422 /* If target is old or too close(1ms) to current, we call the handler immediately.
1423 * 2ms? it seems too much.
1425 if (seq_target < curr) {
1426 func(vblank, TDM_ERROR_NONE, sequence,
1427 TDM_TIME_SEC(seq_target), TDM_TIME_USEC(seq_target),
1429 return TDM_ERROR_NONE;
1430 } else if ((seq_target - curr) < 0.001) { /* 1ms */
1431 func(vblank, TDM_ERROR_NONE, sequence,
1432 TDM_TIME_SEC(curr), TDM_TIME_USEC(curr),
1434 return TDM_ERROR_NONE;
1437 interval = (unsigned int)((seq_target - curr) / private_vblank->vblank_gap + TDM_TIME_MARGIN) + 1;
1439 /* this seems error. But we handle this like normal to avoid the unexpected error in cliend side */
1440 TDM_WRN("sequence(%u) should be over the last sequence(%u)", sequence, private_vblank->last_seq);
1441 func(vblank, TDM_ERROR_NONE, private_vblank->last_seq,
1442 TDM_TIME_SEC(private_vblank->last_time), TDM_TIME_USEC(private_vblank->last_time),
1444 return TDM_ERROR_NONE;
1447 return tdm_vblank_wait(vblank, req_sec, req_usec, interval, func, user_data);
1450 /* LCOV_EXCL_START */
1452 tdm_vblank_set_add_front(tdm_vblank *vblank, unsigned int add_front)
1454 tdm_private_vblank *private_vblank = vblank;
1456 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1458 TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
1460 if (private_vblank->add_front == add_front)
1461 return TDM_ERROR_NONE;
1463 private_vblank->add_front = add_front;
1465 return TDM_ERROR_NONE;
1467 /* LCOV_EXCL_STOP */
1470 tdm_vblank_set_resource(tdm_vblank *vblank, struct wl_resource *resource)
1472 tdm_private_vblank *private_vblank = vblank;
1474 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1475 TDM_RETURN_VAL_IF_FAIL(private_vblank->resource == NULL, TDM_ERROR_OPERATION_FAILED);
1477 private_vblank->resource = resource;
1479 return TDM_ERROR_NONE;
1483 tdm_vblank_get_stamp(tdm_vblank *vblank)
1485 tdm_private_vblank *private_vblank = vblank;
1487 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1489 return private_vblank->stamp;
1493 _tdm_vblank_get_waiting_count(tdm_private_vblank *private_vblank)
1495 tdm_vblank_wait_info *wait_info = NULL;
1496 unsigned int count = 0;
1498 LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->HW_wait_list, link) {
1502 LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->SW_wait_list, link) {
1509 /* LCOV_EXCL_START */
1511 tdm_vblank_get_vblank_list_information(tdm_display *dpy, char *reply, int *len)
1513 tdm_private_vblank *v = NULL;
1514 tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1515 tdm_output *output = tdm_display_get_output(dpy, 0, NULL);
1518 tdm_output_get_dpms(output, &dpms);
1520 TDM_SNPRINTF(reply, len, "[Client Vblank List]\n");
1521 TDM_SNPRINTF(reply, len, "* DPMS: %s\n", tdm_dpms_str(dpms));
1522 TDM_SNPRINTF(reply, len, "* global fps: %u\n", vblank_global_fps);
1523 TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1524 TDM_SNPRINTF(reply, len, "Name Type Wait Interval Sequence Fps Ignore Offset Fake Process\n");
1525 TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1527 pthread_mutex_lock(&valid_list_lock);
1528 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
1529 const char *proc_name = NULL;
1534 struct wl_client *client = wl_resource_get_client(v->resource);
1536 wl_client_get_credentials(client, &pid, NULL, NULL);
1537 proc_name = tdm_server_get_client_name(pid);
1541 count = _tdm_vblank_get_waiting_count(v);
1543 TDM_SNPRINTF(reply, len, "%-8s(%p) ", v->name, v);
1544 TDM_SNPRINTF(reply, len, "%-4s ", (v->last_type == VBLANK_EVENT_TYPE_HW) ? "HW" : "SW");
1545 TDM_SNPRINTF(reply, len, "%-4s ", (count > 0) ? "O" : " ");
1546 TDM_SNPRINTF(reply, len, "%-8d ", v->last_interval);
1547 TDM_SNPRINTF(reply, len, "%-8u ", v->last_seq);
1548 TDM_SNPRINTF(reply, len, "%-3u ", v->fps);
1549 TDM_SNPRINTF(reply, len, "%-6u ", v->ignore_global_fps);
1550 TDM_SNPRINTF(reply, len, "%-6d ", v->offset);
1551 TDM_SNPRINTF(reply, len, "%-4u ", v->enable_fake);
1552 TDM_SNPRINTF(reply, len, "%s(pid:%d)\n", (proc_name) ? proc_name : "Unknown", pid);
1554 pthread_mutex_unlock(&valid_list_lock);
1556 TDM_SNPRINTF(reply, len, "\n");
1558 /* LCOV_EXCL_STOP */