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"
45 * Basically tdm vblank doesn't care about thread things.
46 * However, to use tdm_event_loop_xxx functions, have to use the internal function.
47 * So need to lock/unlock the mutex of private_display. And valid_vblank_list and
48 * valid_wait_list should be protected by valid_list_lock because tdm_vblank can
49 * be used in multi-thread.
53 * - aligned by HW vblank
54 * - use a tdm_event_loop_source object only.
57 #define TDM_VBLANK_DEFAULT_VREFRESH 30
59 /* We expact "(unsigned int)(0.0016667 / 0.0016667) = 1". But it becomes 0. */
60 #define TDM_TIME_MARGIN 0.0000001
62 #define TDM_VBLANK_UINT_MAX 4294967295U
63 #define TDM_VBLANK_UINT_1Q 1073741823U /* UINT_MAX / 4 */
64 #define TDM_VBLANK_UINT_3Q 3221225471U /* UINT_MAX / 4 * 3 */
66 /* (seq < TDM_VBLANK_UINT_1Q && TDM_VBLANK_UINT_3Q < last_seq) means
67 * that the sequence value has reached the max value and started from 0 again.
69 #define TDM_VBLANK_SEQ_REACHED_MAX(seq, last_seq) \
70 ((seq) < TDM_VBLANK_UINT_1Q && TDM_VBLANK_UINT_3Q < (last_seq))
72 #define VER(fmt, arg...) TDM_ERR("[%p] "fmt, private_vblank, ##arg)
73 #define VWR(fmt, arg...) TDM_WRN("[%p] "fmt, private_vblank, ##arg)
74 #define VIN(fmt, arg...) do { if (tdm_debug_module & TDM_DEBUG_VBLANK) TDM_INFO("[%p] "fmt, private_vblank, ##arg); } while (0)
75 #define VDB(fmt, arg...) do { if (tdm_debug_module & TDM_DEBUG_VBLANK) TDM_DBG("[%p] "fmt, private_vblank, ##arg); } while (0)
82 } tdm_vblank_wait_type;
85 VBLANK_EVENT_TYPE_NONE,
88 } tdm_vblank_event_type;
90 typedef struct _tdm_vblank_wait_info tdm_vblank_wait_info;
92 typedef struct _tdm_private_vblank {
93 struct list_head valid_link;
100 tdm_output_conn_status connection;
101 unsigned int vrefresh;
103 tdm_vblank_event_type last_type;
104 unsigned int check_HW_or_SW;
105 char name[TDM_NAME_LEN];
107 unsigned int fps_changeable;
109 unsigned int enable_fake;
110 unsigned int ignore_global_fps;
113 unsigned int quotient;
115 unsigned int last_seq;
118 unsigned int add_front;
119 struct wl_resource *resource;
122 double HW_vblank_gap;
123 struct list_head HW_wait_list;
126 tdm_event_loop_source *SW_timer;
127 struct list_head SW_wait_list;
128 } tdm_private_vblank;
130 struct _tdm_vblank_wait_info {
131 struct list_head link;
132 struct list_head valid_link;
137 unsigned int interval;
139 tdm_vblank_handler func;
141 tdm_private_vblank *private_vblank;
143 tdm_vblank_wait_type type;
146 unsigned int target_seq;
149 /* valid_vblank_list and valid_wait_list should be protected by valid_list_lock because
150 * tdm_vblank can be used in multi-thread.
152 static pthread_mutex_t valid_list_lock;
153 static struct list_head valid_vblank_list;
154 static struct list_head valid_wait_list;
155 static unsigned int vblank_list_inited;
156 static unsigned int vblank_global_fps;
157 static double stamp = 0;
159 static tdm_error _tdm_vblank_cb_vblank_SW(void *user_data);
160 static tdm_error _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info);
161 static void _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
162 unsigned int tv_sec, unsigned int tv_usec,
167 _print_list(struct list_head *list)
169 tdm_vblank_wait_info *w = NULL;
171 LIST_FOR_EACH_ENTRY(w, list, link) {
172 printf(" %d", w->interval);
179 _tdm_vblank_valid_list_add(struct list_head *valid_link, struct list_head *valid_list)
181 pthread_mutex_lock(&valid_list_lock);
182 LIST_ADDTAIL(valid_link, valid_list);
183 pthread_mutex_unlock(&valid_list_lock);
187 _tdm_vblank_valid_list_del(struct list_head *valid_link)
189 pthread_mutex_lock(&valid_list_lock);
190 LIST_DEL(valid_link);
191 pthread_mutex_unlock(&valid_list_lock);
194 static inline tdm_private_vblank*
195 _tdm_vblank_find(double vblank_stamp)
197 tdm_private_vblank *v = NULL;
202 pthread_mutex_lock(&valid_list_lock);
203 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
204 if (v->stamp == vblank_stamp) {
205 pthread_mutex_unlock(&valid_list_lock);
209 pthread_mutex_unlock(&valid_list_lock);
214 static inline unsigned int
215 _tdm_vblank_check_valid_wait(tdm_vblank_wait_info *wait_info)
217 tdm_vblank_wait_info *w = NULL;
222 pthread_mutex_lock(&valid_list_lock);
223 LIST_FOR_EACH_ENTRY(w, &valid_wait_list, valid_link) {
224 if (w == wait_info) {
225 pthread_mutex_unlock(&valid_list_lock);
229 pthread_mutex_unlock(&valid_list_lock);
234 static inline unsigned int
235 _tdm_vblank_find_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
237 tdm_vblank_wait_info *w = NULL;
242 LIST_FOR_EACH_ENTRY(w, list, link) {
243 if (w->stamp == wait_info->stamp)
251 _tdm_vblank_insert_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
253 tdm_vblank_wait_info *w = NULL;
254 tdm_vblank_wait_info *found = NULL;
256 if (LIST_IS_EMPTY(list)) {
257 LIST_ADDTAIL(&wait_info->link, list);
261 LIST_FOR_EACH_ENTRY(w, list, link) {
262 if (wait_info->type == VBLANK_TYPE_SW) {
263 if (wait_info->target_time == 0)
264 TDM_NEVER_GET_HERE();
265 if (w->target_time <= wait_info->target_time) {
270 if (w->interval <= wait_info->interval) {
278 LIST_ADD(&wait_info->link, &found->link);
280 LIST_ADDTAIL(&wait_info->link, list->next);
284 _tdm_vblank_change_to_SW(tdm_private_vblank *private_vblank)
286 tdm_vblank_wait_info *w = NULL, *ww = NULL;
288 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
291 tdm_display_lock(private_vblank->dpy);
292 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, w);
293 tdm_display_unlock(private_vblank->dpy);
295 w->type = VBLANK_TYPE_SW_FAKE;
296 _tdm_vblank_wait_SW(w);
301 _tdm_vblank_free_HW_wait(tdm_private_vblank *private_vblank, tdm_error error, unsigned int call_cb)
303 tdm_vblank_wait_info *w = NULL, *ww = NULL;
305 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
307 _tdm_vblank_valid_list_del(&w->valid_link);
309 tdm_display_lock(private_vblank->dpy);
310 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, w);
311 tdm_display_unlock(private_vblank->dpy);
313 if (call_cb && w->func)
314 w->func(private_vblank, error, 0, 0, 0, w->user_data);
321 _tdm_vblank_update_output_info(tdm_private_vblank *private_vblank)
323 tdm_output *output = private_vblank->output;
324 tdm_output_conn_status connection = TDM_OUTPUT_CONN_STATUS_DISCONNECTED;
325 unsigned int vrefresh = 0;
328 ret = tdm_output_get_conn_status(output, &connection);
329 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
331 if (connection != TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
332 const tdm_output_mode *mode = NULL;
333 tdm_output_get_mode(output, &mode);
335 vrefresh = mode->vrefresh;
337 VWR("mode not setted!!!");
341 VWR("vrefresh can't be zero !!!");
342 vrefresh = TDM_VBLANK_DEFAULT_VREFRESH;
345 private_vblank->connection = connection;
346 private_vblank->vrefresh = vrefresh;
347 private_vblank->HW_vblank_gap = 1.0 / private_vblank->vrefresh;
349 if (private_vblank->fps_changeable)
350 private_vblank->fps = vrefresh;
352 VIN("connection(%d) vrefresh(%d) fps(%d) fps_changeable(%d)",
353 private_vblank->connection,
354 private_vblank->vrefresh, private_vblank->fps, private_vblank->fps_changeable);
357 /* LCOV_EXCL_START */
359 _tdm_vblank_cb_output_change(tdm_output *output, tdm_output_change_type type,
360 tdm_value value, void *user_data)
362 tdm_private_vblank *private_vblank = user_data;
364 TDM_RETURN_IF_FAIL(private_vblank != NULL);
367 case TDM_OUTPUT_CHANGE_DPMS:
368 VIN("dpms %s", tdm_dpms_str(value.u32));
369 private_vblank->check_HW_or_SW = 1;
370 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(value.u32)) {
371 if (private_vblank->enable_fake)
372 _tdm_vblank_change_to_SW(private_vblank);
374 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_DPMS_OFF, 1);
377 case TDM_OUTPUT_CHANGE_CONNECTION:
378 if (private_vblank->connection == value.u32)
380 VIN("output %s", tdm_status_str(value.u32));
381 _tdm_vblank_update_output_info(private_vblank);
382 private_vblank->check_HW_or_SW = 1;
383 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
384 if (private_vblank->enable_fake)
385 _tdm_vblank_change_to_SW(private_vblank);
387 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_OUTPUT_DISCONNECTED, 1);
397 tdm_vblank_set_client_vblank_fps(unsigned int pid, const char *name, unsigned int fps)
399 tdm_private_vblank *v = NULL;
401 TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
402 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
404 TDM_INFO("pid: %u, name: %s, fps: %d", pid, name, fps);
406 pthread_mutex_lock(&valid_list_lock);
407 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
408 struct wl_client *client;
409 pid_t client_pid = 0;
414 client = wl_resource_get_client(v->resource);
418 wl_client_get_credentials(client, &client_pid, NULL, NULL);
420 if (client_pid != pid)
423 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
424 if (strncmp(v->name, name, TDM_NAME_LEN))
428 tdm_vblank_set_fps(v, fps);
430 TDM_INFO("(pid:%u) '%s' fps changed: %d", pid, v->name, fps);
432 pthread_mutex_unlock(&valid_list_lock);
434 return TDM_ERROR_NONE;
438 tdm_vblank_enable_global_fps(unsigned int enable, unsigned int fps)
440 tdm_private_vblank *v = NULL;
443 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
445 TDM_INFO("global fps: %s fps(%d)", (enable) ? "enabled" : "disabled", fps);
447 pthread_mutex_lock(&valid_list_lock);
449 vblank_global_fps = (enable) ? fps : 0;
451 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
452 /* skip if vblank is created in server side */
456 v->check_HW_or_SW = 1;
458 pthread_mutex_unlock(&valid_list_lock);
460 return TDM_ERROR_NONE;
464 tdm_vblank_create(tdm_display *dpy, tdm_output *output, tdm_error *error)
466 tdm_private_vblank *private_vblank;
469 TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(dpy != NULL, TDM_ERROR_INVALID_PARAMETER, NULL);
470 TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(output != NULL, TDM_ERROR_INVALID_PARAMETER, NULL);
473 *error = TDM_ERROR_NONE;
475 if (!vblank_list_inited) {
476 if (pthread_mutex_init(&valid_list_lock, NULL)) {
477 /* LCOV_EXCL_START */
478 TDM_ERR("mutex init failed: %m");
480 *error = TDM_ERROR_OPERATION_FAILED;
484 LIST_INITHEAD(&valid_vblank_list);
485 LIST_INITHEAD(&valid_wait_list);
486 vblank_list_inited = 1;
489 private_vblank = calloc(1, sizeof * private_vblank);
490 if (!private_vblank) {
491 /* LCOV_EXCL_START */
493 *error = TDM_ERROR_OUT_OF_MEMORY;
499 tdm_output_add_change_handler(output, _tdm_vblank_cb_output_change, private_vblank);
501 private_vblank->stamp = ++stamp;
502 private_vblank->owner_tid = syscall(SYS_gettid);
503 private_vblank->dpy = dpy;
504 private_vblank->output = output;
505 private_vblank->check_HW_or_SW = 1;
506 private_vblank->fps_changeable = 1;
508 _tdm_vblank_update_output_info(private_vblank);
510 strncpy(private_vblank->name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN - 1);
511 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
513 LIST_INITHEAD(&private_vblank->HW_wait_list);
514 LIST_INITHEAD(&private_vblank->SW_wait_list);
516 _tdm_vblank_valid_list_add(&private_vblank->valid_link, &valid_vblank_list);
518 VIN("created. vrefresh(%d) connection(%d)",
519 private_vblank->vrefresh, private_vblank->connection);
521 return (tdm_vblank *)private_vblank;
525 tdm_vblank_destroy(tdm_vblank *vblank)
527 tdm_private_vblank *private_vblank = vblank;
528 tdm_vblank_wait_info *w = NULL, *ww = NULL;
533 _tdm_vblank_valid_list_del(&private_vblank->valid_link);
535 if (private_vblank->SW_timer) {
536 tdm_display_lock(private_vblank->dpy);
537 tdm_event_loop_source_remove(private_vblank->SW_timer);
538 tdm_display_unlock(private_vblank->dpy);
541 tdm_output_remove_change_handler(private_vblank->output,
542 _tdm_vblank_cb_output_change, private_vblank);
544 _tdm_vblank_free_HW_wait(private_vblank, 0, 0);
546 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
548 _tdm_vblank_valid_list_del(&w->valid_link);
554 free(private_vblank);
558 tdm_vblank_set_name(tdm_vblank *vblank, const char *name)
560 tdm_private_vblank *private_vblank = vblank;
562 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
565 name = TDM_VBLANK_DEFAULT_NAME;
567 strncpy(private_vblank->name, name, TDM_NAME_LEN - 1);
568 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
570 VIN("name(%s)", name);
572 return TDM_ERROR_NONE;
576 tdm_vblank_get_name(tdm_vblank *vblank, const char **name)
578 tdm_private_vblank *private_vblank = vblank;
580 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
581 TDM_RETURN_VAL_IF_FAIL(name != NULL, TDM_ERROR_INVALID_PARAMETER);
583 *name = (const char*)private_vblank->name;
585 return TDM_ERROR_NONE;
589 tdm_vblank_set_fps(tdm_vblank *vblank, unsigned int fps)
591 tdm_private_vblank *private_vblank = vblank;
593 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
594 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
596 if (private_vblank->fps != fps || private_vblank->fps_changeable)
597 VIN("fps(%d) fps_changeable(0)", fps);
599 private_vblank->fps_changeable = 0;
601 if (private_vblank->fps == fps)
602 return TDM_ERROR_NONE;
604 private_vblank->fps = fps;
605 private_vblank->check_HW_or_SW = 1;
607 return TDM_ERROR_NONE;
611 tdm_vblank_get_fps(tdm_vblank *vblank, unsigned int *fps)
613 tdm_private_vblank *private_vblank = vblank;
615 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
616 TDM_RETURN_VAL_IF_FAIL(fps != NULL, TDM_ERROR_INVALID_PARAMETER);
618 *fps = private_vblank->fps;
620 return TDM_ERROR_NONE;
624 tdm_vblank_ignore_global_fps(tdm_vblank *vblank, unsigned int ignore)
626 tdm_private_vblank *private_vblank = vblank;
628 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
630 if (private_vblank->ignore_global_fps == ignore)
631 return TDM_ERROR_NONE;
633 private_vblank->ignore_global_fps = ignore;
634 private_vblank->check_HW_or_SW = 1;
636 VIN("ignore_global_fps(%d)", private_vblank->ignore_global_fps);
638 return TDM_ERROR_NONE;
642 tdm_vblank_set_offset(tdm_vblank *vblank, int offset)
644 tdm_private_vblank *private_vblank = vblank;
646 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
648 if (private_vblank->offset == offset)
649 return TDM_ERROR_NONE;
651 private_vblank->offset = offset;
652 private_vblank->check_HW_or_SW = 1;
654 VIN("offset(%d)", private_vblank->offset);
656 return TDM_ERROR_NONE;
660 tdm_vblank_get_offset(tdm_vblank *vblank, int *offset)
662 tdm_private_vblank *private_vblank = vblank;
664 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
665 TDM_RETURN_VAL_IF_FAIL(offset != NULL, TDM_ERROR_INVALID_PARAMETER);
667 *offset = private_vblank->offset;
669 return TDM_ERROR_NONE;
673 tdm_vblank_set_enable_fake(tdm_vblank *vblank, unsigned int enable_fake)
675 tdm_private_vblank *private_vblank = vblank;
677 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
679 if (private_vblank->enable_fake == enable_fake)
680 return TDM_ERROR_NONE;
682 private_vblank->enable_fake = enable_fake;
684 VIN("enable_fake(%d)", private_vblank->enable_fake);
686 return TDM_ERROR_NONE;
690 tdm_vblank_get_enable_fake(tdm_vblank *vblank, unsigned int *enable_fake)
692 tdm_private_vblank *private_vblank = vblank;
694 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
695 TDM_RETURN_VAL_IF_FAIL(enable_fake != NULL, TDM_ERROR_INVALID_PARAMETER);
697 *enable_fake = private_vblank->enable_fake;
699 return TDM_ERROR_NONE;
703 _tdm_vblank_sw_timer_update(tdm_private_vblank *private_vblank)
705 tdm_vblank_wait_info *first_wait_info = NULL;
710 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
712 return TDM_ERROR_OPERATION_FAILED;
715 first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
716 curr = tdm_helper_get_time();
717 target = first_wait_info->target_time;
719 /* ms_delay should be more that 1 */
723 ms_delay = ceil((target - curr) * 1000.0);
729 VER("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
731 VDB("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
733 tdm_display_lock(private_vblank->dpy);
735 if (!private_vblank->SW_timer) {
736 private_vblank->SW_timer =
737 tdm_event_loop_add_timer_handler(private_vblank->dpy,
738 _tdm_vblank_cb_vblank_SW,
741 if (!private_vblank->SW_timer) {
742 tdm_display_unlock(private_vblank->dpy);
743 VER("couldn't add timer");
746 VIN("Create SW timer");
749 ret = tdm_event_loop_source_timer_update(private_vblank->SW_timer, ms_delay);
750 if (ret != TDM_ERROR_NONE) {
751 /* LCOV_EXCL_START */
752 tdm_display_unlock(private_vblank->dpy);
753 VER("couldn't update timer");
758 tdm_display_unlock(private_vblank->dpy);
760 return TDM_ERROR_NONE;
764 _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
765 unsigned int tv_sec, unsigned int tv_usec,
768 tdm_vblank_wait_info *wait_info = user_data;
769 tdm_private_vblank *private_vblank;
771 if (!_tdm_vblank_check_valid_wait(wait_info)) {
772 TDM_DBG("can't find wait(%p) from valid_wait_list", wait_info);
776 private_vblank = wait_info->private_vblank;
777 TDM_RETURN_IF_FAIL(private_vblank != NULL);
779 if (!_tdm_vblank_find_wait(wait_info, &private_vblank->HW_wait_list)) {
780 VDB("can't find wait(%p)", wait_info);
784 if (wait_info->type == VBLANK_TYPE_HW_SW) {
787 LIST_DEL(&wait_info->link);
789 /* kernel sends the wrong time of first vblank event. and the time of
790 * second vblank is correct.
792 wait_info->target_time = TDM_TIME(tv_sec, tv_usec);
793 wait_info->target_time += (((double)private_vblank->offset) / 1000.0);
795 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
797 ret = _tdm_vblank_sw_timer_update(private_vblank);
799 /* wait_info will be freed in _tdm_vblank_cb_vblank_SW() */
800 if (ret == TDM_ERROR_NONE) {
801 VDB("wait(%p) SW timer", wait_info);
805 VWR("couldn't update sw timer");
808 LIST_DEL(&wait_info->link);
809 _tdm_vblank_valid_list_del(&wait_info->valid_link);
811 /* tv_sec & tv_usec shouldn't be zero. But sometimes they are zero in some hardware.
812 * We need to prohibit that last_time becomes zero because "last_time == 0" means
813 * that a tdm_vblank object is just created and doesn't have the first vblank event.
814 * If last_time becomes 0, it would make issue.
816 if (tv_sec == 0 && tv_usec == 0) {
817 double curr = tdm_helper_get_time();
818 tv_sec = TDM_TIME_SEC(curr);
819 tv_usec = TDM_TIME_USEC(curr);
822 private_vblank->last_seq = wait_info->target_seq;
823 private_vblank->last_time = TDM_TIME(tv_sec, tv_usec);
825 VDB("wait(%p) last(%.6f) sequence(%u) done", wait_info, private_vblank->last_time, wait_info->target_seq);
828 wait_info->func(private_vblank, TDM_ERROR_NONE, wait_info->target_seq,
829 tv_sec, tv_usec, wait_info->user_data);
835 _tdm_vblank_wait_HW(tdm_vblank_wait_info *wait_info)
837 tdm_private_vblank *private_vblank = wait_info->private_vblank;
841 if (private_vblank->last_type != VBLANK_EVENT_TYPE_HW) {
842 VIN("Use HW vblank");
843 private_vblank->last_type = VBLANK_EVENT_TYPE_HW;
846 _tdm_vblank_insert_wait(wait_info, &private_vblank->HW_wait_list);
848 hw_interval = wait_info->interval * private_vblank->quotient;
850 if (private_vblank->last_time == 0) {
851 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
852 private_vblank->last_seq = 0;
853 private_vblank->last_time = tdm_helper_get_time();
855 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
856 wait_info->target_seq = 1;
858 VDB("wait(%p) last(%.6f) hw_itvl(%d) targ_seq(%u)",
859 wait_info, private_vblank->last_time, hw_interval, wait_info->target_seq);
861 double last, prev, req, curr, target;
864 last = private_vblank->last_time;
865 req = wait_info->req_time;
867 /* make sure that req time is bigger than last. */
871 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
872 prev = last + private_vblank->vblank_gap * skip;
874 curr = tdm_helper_get_time();
876 while (target < curr)
877 target += (private_vblank->vblank_gap * wait_info->interval);
879 hw_interval = (unsigned int)((target - curr) / private_vblank->HW_vblank_gap + TDM_TIME_MARGIN) + 1;
881 wait_info->target_seq = private_vblank->last_seq;
882 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
884 if (hw_interval > 300)
885 VER("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
886 wait_info, last, req - last, prev - last, curr - last, target, target - last,
887 skip, hw_interval, wait_info->target_seq);
889 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
890 wait_info, last, req - last, prev - last, curr - last, target, target - last,
891 skip, hw_interval, wait_info->target_seq);
894 if (private_vblank->add_front)
895 ret = tdm_output_wait_vblank_add_front(private_vblank->output, hw_interval, 0,
896 _tdm_vblank_cb_vblank_HW, wait_info);
898 ret = tdm_output_wait_vblank(private_vblank->output, hw_interval, 0,
899 _tdm_vblank_cb_vblank_HW, wait_info);
901 if (ret != TDM_ERROR_NONE) {
902 LIST_DEL(&wait_info->link);
906 VDB("wait(%p) waiting", wait_info);
908 return TDM_ERROR_NONE;
912 _tdm_vblank_cb_vblank_SW(void *user_data)
914 tdm_private_vblank *private_vblank = user_data;
916 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_OPERATION_FAILED);
918 return tdm_vblank_cb_vblank_SW(private_vblank, 0);
922 tdm_vblank_cb_vblank_SW(tdm_vblank *vblank, double vblank_stamp)
924 tdm_private_vblank *private_vblank;
925 tdm_vblank_wait_info *first_wait_info = NULL, *w = NULL, *ww = NULL;
927 TDM_RETURN_VAL_IF_FAIL(vblank || vblank_stamp > 0, TDM_ERROR_INVALID_PARAMETER);
930 private_vblank = vblank;
932 private_vblank = _tdm_vblank_find(vblank_stamp);
933 if (!private_vblank) {
934 TDM_DBG("can't find vblank(%.0f) from valid_list", vblank_stamp);
935 return TDM_ERROR_NONE;
939 if (private_vblank->owner_tid != syscall(SYS_gettid)) {
940 tdm_thread_cb_vblank_sw vblank_sw;
941 tdm_private_display *private_display = private_vblank->dpy;
944 vblank_sw.base.type = TDM_THREAD_CB_VBLANK_SW;
945 vblank_sw.base.length = sizeof vblank_sw;
946 vblank_sw.vblank_stamp = private_vblank->stamp;
948 ret = tdm_thread_send_cb(private_display->private_loop, &vblank_sw.base);
949 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
951 return TDM_ERROR_NONE;
954 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
956 return TDM_ERROR_OPERATION_FAILED;
959 first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
960 TDM_RETURN_VAL_IF_FAIL(first_wait_info != NULL, TDM_ERROR_OPERATION_FAILED);
962 if (private_vblank->last_seq >= first_wait_info->target_seq)
963 TDM_ERR("last_seq(%u) target_seq(%u)", private_vblank->last_seq, first_wait_info->target_seq);
965 private_vblank->last_seq = first_wait_info->target_seq;
966 private_vblank->last_time = first_wait_info->target_time;
968 VDB("wait(%p) last(%.6f) sequence(%u) done", first_wait_info, private_vblank->last_time, first_wait_info->target_seq);
970 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
971 if (w->target_time != first_wait_info->target_time)
974 TDM_TRACE_ASYNC_END((int)w->req_time, "TDM_SW_Vblank:%u", (unsigned int)private_vblank->stamp);
977 _tdm_vblank_valid_list_del(&w->valid_link);
980 tdm_display_unlock(private_vblank->dpy);
981 w->func(private_vblank, TDM_ERROR_NONE, w->target_seq,
982 TDM_TIME_SEC(w->target_time), TDM_TIME_USEC(w->target_time),
984 tdm_display_lock(private_vblank->dpy);
990 return TDM_ERROR_NONE;
994 _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info)
996 tdm_private_vblank *private_vblank = wait_info->private_vblank;
999 if (private_vblank->last_type != VBLANK_EVENT_TYPE_SW) {
1000 VIN("Use SW vblank");
1001 private_vblank->last_type = VBLANK_EVENT_TYPE_SW;
1004 if (private_vblank->last_time == 0) {
1005 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1006 private_vblank->last_seq = 0;
1007 private_vblank->last_time = tdm_helper_get_time();
1009 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1010 wait_info->target_seq = 1;
1011 wait_info->target_time = private_vblank->last_time + 0.001;
1013 VDB("wait(%p) last(%.6f) target(%.6f) target sequence(%u)",
1014 wait_info, private_vblank->last_time, wait_info->target_time, wait_info->target_seq);
1016 double last, prev, req, curr, target;
1019 last = private_vblank->last_time;
1020 req = wait_info->req_time;
1022 /* make sure that req time is bigger than last. */
1026 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1027 prev = last + private_vblank->vblank_gap * skip;
1029 curr = tdm_helper_get_time();
1030 target = prev + private_vblank->vblank_gap * wait_info->interval;
1032 while (target < curr)
1033 target += private_vblank->vblank_gap;
1035 wait_info->target_seq = private_vblank->last_seq;
1036 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1038 wait_info->target_time = target;
1040 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) targ_seq(%u)",
1041 wait_info, last, req - last, prev - last, curr - last,
1042 target, target - last, skip, wait_info->target_seq);
1045 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1047 TDM_TRACE_ASYNC_BEGIN((int)wait_info->req_time, "TDM_SW_Vblank:%u", (unsigned int)private_vblank->stamp);
1049 ret = _tdm_vblank_sw_timer_update(private_vblank);
1050 if (ret != TDM_ERROR_NONE) {
1051 /* LCOV_EXCL_START */
1052 LIST_DEL(&wait_info->link);
1053 VER("couldn't update sw timer");
1055 /* LCOV_EXCL_STOP */
1058 return TDM_ERROR_NONE;
1062 tdm_vblank_wait(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1063 unsigned int interval, tdm_vblank_handler func, void *user_data)
1065 tdm_private_vblank *private_vblank = vblank;
1066 tdm_vblank_wait_info *wait_info;
1067 tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1071 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
1072 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1074 if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1075 TDM_ERR("SHOULD be called in the owner thread(%d)", (int)private_vblank->owner_tid);
1076 return TDM_ERROR_BAD_REQUEST;
1079 tdm_output_get_dpms(private_vblank->output, &dpms);
1081 if (!private_vblank->enable_fake) {
1082 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
1083 VER("can't wait a vblank: output disconnected");
1084 return TDM_ERROR_OUTPUT_DISCONNECTED;
1086 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms)) {
1087 VER("can't wait a vblank: DPMS %s", tdm_dpms_str(dpms));
1088 return TDM_ERROR_DPMS_OFF;
1092 wait_info = calloc(1, sizeof * wait_info);
1094 /* LCOV_EXCL_START */
1095 VER("alloc failed");
1096 return TDM_ERROR_OUT_OF_MEMORY;
1097 /* LCOV_EXCL_STOP */
1100 /* set request time to current time if 0. This function seems to be called in server side. */
1101 if (req_sec == 0 && req_usec == 0) {
1102 double curr = tdm_helper_get_time();
1103 req_sec = TDM_TIME_SEC(curr);
1104 req_usec = TDM_TIME_USEC(curr);
1107 LIST_INITHEAD(&wait_info->link);
1109 _tdm_vblank_valid_list_add(&wait_info->valid_link, &valid_wait_list);
1111 wait_info->stamp = ++stamp;
1112 wait_info->req_time = TDM_TIME(req_sec, req_usec);
1113 wait_info->interval = interval;
1114 wait_info->func = func;
1115 wait_info->user_data = user_data;
1116 wait_info->private_vblank = private_vblank;
1118 if (private_vblank->ignore_global_fps ||
1119 vblank_global_fps == 0 ||
1120 private_vblank->fps < vblank_global_fps)
1121 fps = private_vblank->fps;
1123 fps = vblank_global_fps;
1125 if (private_vblank->check_HW_or_SW) {
1126 private_vblank->check_HW_or_SW = 0;
1127 private_vblank->vblank_gap = 1.0 / fps;
1128 private_vblank->quotient = private_vblank->vrefresh / fps;
1131 /* 1) if fps != factor of vrefresh, SW timer
1132 * 2) if fps == factor of vrefresh && dpms == off, SW timer (Fake HW vblank)
1133 * 2) if fps == factor of vrefresh && dpms == on && offset == 0, HW vblank
1134 * 3) if fps == factor of vrefresh && dpms == on && offset != 0, HW vblank + SW timer
1135 * In case of 1), we really don't need to align with HW vblank.
1137 if (private_vblank->vrefresh % fps)
1138 wait_info->type = VBLANK_TYPE_SW;
1139 else if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms) ||
1140 private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED)
1141 wait_info->type = VBLANK_TYPE_SW_FAKE;
1142 else if (private_vblank->offset == 0)
1143 wait_info->type = VBLANK_TYPE_HW;
1145 wait_info->type = VBLANK_TYPE_HW_SW;
1147 if (wait_info->type == VBLANK_TYPE_SW || wait_info->type == VBLANK_TYPE_SW_FAKE) {
1148 ret = _tdm_vblank_wait_SW(wait_info);
1149 if (ret != TDM_ERROR_NONE)
1150 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1152 ret = _tdm_vblank_wait_HW(wait_info);
1153 if (ret != TDM_ERROR_NONE)
1154 TDM_ERR("_tdm_vblank_wait_HW failed: ret(%d)", ret);
1156 if (ret == TDM_ERROR_OUTPUT_DISCONNECTED || ret == TDM_ERROR_DPMS_OFF) {
1157 ret = _tdm_vblank_wait_SW(wait_info);
1158 if (ret != TDM_ERROR_NONE)
1159 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1163 if (ret != TDM_ERROR_NONE) {
1164 /* LCOV_EXCL_START */
1165 LIST_DEL(&wait_info->link);
1166 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1168 tdm_display_lock(private_vblank->dpy);
1169 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, wait_info);
1170 tdm_display_unlock(private_vblank->dpy);
1174 /* LCOV_EXCL_STOP */
1177 return TDM_ERROR_NONE;
1181 tdm_vblank_wait_seq(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1182 unsigned int sequence, tdm_vblank_handler func, void *user_data)
1184 tdm_private_vblank *private_vblank = vblank;
1185 unsigned int interval;
1187 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
1188 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1190 /* if the sequence of vblank reaches the max value, sequence can be 0. */
1192 if (private_vblank->last_seq == 0) {
1193 TDM_WRN("can't calculate interval with sequence(%u)", sequence);
1195 } else if (sequence > private_vblank->last_seq ||
1196 TDM_VBLANK_SEQ_REACHED_MAX(sequence, private_vblank->last_seq)) {
1197 double last, curr, seq_target;
1199 last = private_vblank->last_time;
1200 curr = tdm_helper_get_time();
1201 seq_target = last + private_vblank->vblank_gap * (sequence - private_vblank->last_seq);
1203 /* If target is old or too close(1ms) to current, we call the handler immediately.
1204 * 2ms? it seems too much.
1206 if (seq_target < curr) {
1207 func(vblank, TDM_ERROR_NONE, sequence,
1208 TDM_TIME_SEC(seq_target), TDM_TIME_USEC(seq_target),
1210 return TDM_ERROR_NONE;
1211 } else if ((seq_target - curr) < 0.001) { /* 1ms */
1212 func(vblank, TDM_ERROR_NONE, sequence,
1213 TDM_TIME_SEC(curr), TDM_TIME_USEC(curr),
1215 return TDM_ERROR_NONE;
1218 interval = (unsigned int)((seq_target - curr) / private_vblank->vblank_gap + TDM_TIME_MARGIN) + 1;
1220 /* this seems error. But we handle this like normal to avoid the unexpected error in cliend side */
1221 TDM_WRN("sequence(%u) should be over the last sequence(%u)", sequence, private_vblank->last_seq);
1222 func(vblank, TDM_ERROR_NONE, private_vblank->last_seq,
1223 TDM_TIME_SEC(private_vblank->last_time), TDM_TIME_USEC(private_vblank->last_time),
1225 return TDM_ERROR_NONE;
1228 return tdm_vblank_wait(vblank, req_sec, req_usec, interval, func, user_data);
1231 /* LCOV_EXCL_START */
1233 tdm_vblank_set_add_front(tdm_vblank *vblank, unsigned int add_front)
1235 tdm_private_vblank *private_vblank = vblank;
1237 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
1239 TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
1241 if (private_vblank->add_front == add_front)
1242 return TDM_ERROR_NONE;
1244 private_vblank->add_front = add_front;
1246 return TDM_ERROR_NONE;
1248 /* LCOV_EXCL_STOP */
1251 tdm_vblank_set_resource(tdm_vblank *vblank, struct wl_resource *resource)
1253 tdm_private_vblank *private_vblank = vblank;
1255 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
1256 TDM_RETURN_VAL_IF_FAIL(private_vblank->resource == NULL, TDM_ERROR_OPERATION_FAILED);
1258 private_vblank->resource = resource;
1260 return TDM_ERROR_NONE;
1264 tdm_vblank_get_stamp(tdm_vblank *vblank)
1266 tdm_private_vblank *private_vblank = vblank;
1268 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_INVALID_PARAMETER);
1270 return private_vblank->stamp;
1273 /* LCOV_EXCL_START */
1275 tdm_vblank_get_vblank_list_information(tdm_display *dpy, char *reply, int *len)
1277 tdm_private_vblank *v = NULL;
1279 TDM_SNPRINTF(reply, len, "[Client Vblank List]\n");
1280 TDM_SNPRINTF(reply, len, "* global fps: %u\n", vblank_global_fps);
1281 TDM_SNPRINTF(reply, len, "---------------------------------------------------------------\n");
1282 TDM_SNPRINTF(reply, len, "name fps ignore offset fake process\n");
1283 TDM_SNPRINTF(reply, len, "---------------------------------------------------------------\n");
1285 pthread_mutex_lock(&valid_list_lock);
1286 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
1287 const char *proc_name = NULL;
1291 struct wl_client *client = wl_resource_get_client(v->resource);
1293 wl_client_get_credentials(client, &pid, NULL, NULL);
1294 proc_name = tdm_server_get_client_name(pid);
1298 TDM_SNPRINTF(reply, len, "%-12s %u %u %d %u %s (pid: %u)\n",
1299 v->name, v->fps, v->ignore_global_fps, v->offset, v->enable_fake,
1300 (proc_name) ? proc_name : "Unknown", pid);
1302 pthread_mutex_unlock(&valid_list_lock);
1304 TDM_SNPRINTF(reply, len, "\n");
1306 /* LCOV_EXCL_STOP */