src/tdm_vblank.c

   1 /**************************************************************************
   2  *
   3  * libtdm
   4  *
   5  * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
   6  *
   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>
  13  *
  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:
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  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.
  33  *
  34 **************************************************************************/
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include "config.h"
  38 #endif
  39
  40 #include "tdm_private.h"
  41
  42 /* CAUTION:
  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.
  48  */
  49
  50 /* TDM vblank
  51  * - aligned by HW vblank
  52  * - use a tdm_event_loop_source object only.
  53  */
  54
  55 #define TDM_VBLANK_DEFAULT_VREFRESH    30
  56
  57 /* We expact "(unsigned int)(0.0016667 / 0.0016667) = 1". But it becomes 0. */
  58 #define TDM_TIME_MARGIN     0.0000001
  59
  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 */
  63
  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.
  66  */
  67 #define TDM_VBLANK_SEQ_REACHED_MAX(seq, last_seq) \
  68         ((seq) < TDM_VBLANK_UINT_1Q && TDM_VBLANK_UINT_3Q < (last_seq))
  69
  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)
  74
  75 typedef enum {
  76         VBLANK_TYPE_SW,
  77         VBLANK_TYPE_SW_FAKE,
  78         VBLANK_TYPE_HW,
  79         VBLANK_TYPE_HW_SW,
  80 } tdm_vblank_wait_type;
  81
  82 typedef enum {
  83         VBLANK_EVENT_TYPE_NONE,
  84         VBLANK_EVENT_TYPE_SW,
  85         VBLANK_EVENT_TYPE_HW,
  86 } tdm_vblank_event_type;
  87
  88 typedef struct _tdm_vblank_wait_info tdm_vblank_wait_info;
  89
  90 typedef struct _tdm_private_vblank {
  91         struct list_head valid_link;
  92
  93         double stamp;
  94         pid_t owner_tid;
  95
  96         tdm_display *dpy;
  97         tdm_output *output;
  98         tdm_output_conn_status connection;
  99         unsigned int vrefresh;
 100
 101         tdm_vblank_event_type last_type;
 102         unsigned int check_HW_or_SW;
 103         char name[TDM_NAME_LEN];
 104         unsigned int fps;
 105         unsigned int fps_changeable;
 106         unsigned int fps_fixed;
 107         int offset;
 108         unsigned int enable_fake;
 109         unsigned int ignore_global_fps;
 110         unsigned int in_create_handler;
 111
 112         double vblank_gap;
 113         unsigned int quotient;
 114
 115         int last_interval;
 116         unsigned int last_seq;
 117         double last_time;
 118
 119         unsigned int add_front;
 120         struct wl_resource *resource;
 121
 122         /* for HW */
 123         double HW_vblank_gap;
 124         struct list_head HW_wait_list;
 125
 126         /* for SW */
 127         tdm_event_loop_source *SW_timer;
 128         struct list_head SW_wait_list;
 129
 130         /* for timeout */
 131         tdm_event_loop_source *timeout_timer;
 132 } tdm_private_vblank;
 133
 134 struct _tdm_vblank_wait_info {
 135         struct list_head link;
 136         struct list_head valid_link;
 137
 138         double stamp;
 139
 140         double req_time;
 141         unsigned int interval;
 142         int hw_interval;
 143
 144         tdm_vblank_handler func;
 145         void *user_data;
 146         tdm_private_vblank *private_vblank;
 147
 148         tdm_vblank_wait_type type;
 149
 150         double target_time;
 151         unsigned int target_seq;
 152 };
 153
 154 typedef struct _tdm_vblank_create_handler_info {
 155         struct list_head link;
 156
 157         tdm_vblank_create_handler func;
 158         void *user_data;
 159 } tdm_vblank_create_handler_info;
 160
 161 /* valid_vblank_list, valid_wait_list and create_handler_list should be protected
 162  * by valid_list_lock because tdm_vblank can be used in multi-thread.
 163  */
 164 static pthread_mutex_t valid_list_lock = PTHREAD_MUTEX_INITIALIZER;
 165 static struct list_head valid_vblank_list;
 166 static struct list_head valid_wait_list;
 167 static struct list_head create_handler_list;
 168 static unsigned int vblank_list_inited;
 169 static unsigned int vblank_global_fps;
 170 static double stamp = 0;
 171
 172 static void _tdm_vblank_cb_vblank_SW(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data);
 173 static tdm_error _tdm_vblank_cb_timeout_SW(void *user_data);
 174 static tdm_error _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info);
 175 static void _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
 176                                                                          unsigned int tv_sec, unsigned int tv_usec,
 177                                                                          void *user_data);
 178 static void _tdm_vblank_timeout_timer_update(tdm_private_vblank *private_vblank, int ms_delay);
 179 static void _tdm_vblank_get_client_information(tdm_private_vblank *private_vblank,
 180                                                                                            pid_t *pid, const char **name);
 181
 182 #if 0
 183 static void
 184 _print_list(tdm_private_vblank *private_vblank)
 185 {
 186         tdm_vblank_wait_info *w = NULL;
 187         int count = 0;
 188
 189         LIST_FOR_EACH_ENTRY(w, &private_vblank->HW_wait_list, link) {
 190                 VIN("HW_wait(%p): type(%d) req_time(%.6f) target_time(%.6f) target_seq(%u)",
 191                         w, w->type, w->req_time, w->target_time, w->target_seq);
 192                 count++;
 193         }
 194
 195         LIST_FOR_EACH_ENTRY(w, &private_vblank->SW_wait_list, link) {
 196                 VIN("SW_wait(%p): type(%d) req_time(%.6f) target_time(%.6f) target_seq(%u)",
 197                         w, w->type, w->req_time, w->target_time, w->target_seq);
 198                 count++;
 199         }
 200
 201         if (!count)
 202                 VIN("NO_wait");
 203 }
 204 #endif
 205
 206 static int
 207 tdm_vblank_is_valid(tdm_vblank *vblank)
 208 {
 209         tdm_private_vblank *v = NULL;
 210
 211         if (vblank && vblank_list_inited) {
 212                 pthread_mutex_lock(&valid_list_lock);
 213                 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 214                         if (v == (tdm_private_vblank *)vblank) {
 215                                 pthread_mutex_unlock(&valid_list_lock);
 216                                 return 1;
 217                         }
 218                 }
 219                 pthread_mutex_unlock(&valid_list_lock);
 220
 221         }
 222         return 0;
 223 }
 224
 225 static void
 226 _tdm_vblank_valid_list_add(struct list_head *valid_link, struct list_head *valid_list)
 227 {
 228         pthread_mutex_lock(&valid_list_lock);
 229         LIST_ADDTAIL(valid_link, valid_list);
 230         pthread_mutex_unlock(&valid_list_lock);
 231 }
 232
 233 static void
 234 _tdm_vblank_valid_list_del(struct list_head *valid_link)
 235 {
 236         pthread_mutex_lock(&valid_list_lock);
 237         LIST_DEL(valid_link);
 238         pthread_mutex_unlock(&valid_list_lock);
 239 }
 240
 241 static inline void*
 242 _tdm_vblank_find_object(tdm_private_display *private_display, double vblank_stamp)
 243 {
 244         tdm_private_vblank *v = NULL;
 245
 246         pthread_mutex_lock(&valid_list_lock);
 247         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 248                 if (v->stamp == vblank_stamp) {
 249                         pthread_mutex_unlock(&valid_list_lock);
 250                         return v;
 251                 }
 252         }
 253         pthread_mutex_unlock(&valid_list_lock);
 254
 255         return NULL;
 256 }
 257
 258 static inline unsigned int
 259 _tdm_vblank_check_valid_wait(tdm_vblank_wait_info *wait_info)
 260 {
 261         tdm_vblank_wait_info *w = NULL;
 262
 263         if (!wait_info)
 264                 return 0;
 265
 266         pthread_mutex_lock(&valid_list_lock);
 267         LIST_FOR_EACH_ENTRY(w, &valid_wait_list, valid_link) {
 268                 if (w == wait_info) {
 269                         pthread_mutex_unlock(&valid_list_lock);
 270                         return 1;
 271                 }
 272         }
 273         pthread_mutex_unlock(&valid_list_lock);
 274
 275         return 0;
 276 }
 277
 278 static inline unsigned int
 279 _tdm_vblank_find_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
 280 {
 281         tdm_vblank_wait_info *w = NULL;
 282
 283         if (!wait_info)
 284                 return 0;
 285
 286         LIST_FOR_EACH_ENTRY(w, list, link) {
 287                 if (w->stamp == wait_info->stamp)
 288                         return 1;
 289         }
 290
 291         return 0;
 292 }
 293
 294 static inline void
 295 _tdm_vblank_insert_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
 296 {
 297         tdm_vblank_wait_info *w = NULL;
 298         tdm_vblank_wait_info *found = NULL;
 299
 300         if (LIST_IS_EMPTY(list)) {
 301                 LIST_ADDTAIL(&wait_info->link, list);
 302                 return;
 303         }
 304
 305         LIST_FOR_EACH_ENTRY(w, list, link) {
 306                 if (wait_info->type == VBLANK_TYPE_SW) {
 307                         if (wait_info->target_time == 0)
 308                                 TDM_NEVER_GET_HERE();
 309                         if (w->target_time <= wait_info->target_time) {
 310                                 found = w;
 311                                 continue;
 312                         }
 313                 } else {
 314                         if (w->interval <= wait_info->interval) {
 315                                 found = w;
 316                                 continue;
 317                         }
 318                 }
 319         }
 320
 321         if (found)
 322                 LIST_ADD(&wait_info->link, &found->link);
 323         else
 324                 LIST_ADDTAIL(&wait_info->link, list->next);
 325 }
 326
 327 static void
 328 _tdm_vblank_change_to_SW(tdm_private_vblank *private_vblank)
 329 {
 330         tdm_vblank_wait_info *w = NULL, *ww = NULL;
 331
 332         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
 333                 LIST_DEL(&w->link);
 334
 335                 tdm_display_lock(private_vblank->dpy);
 336                 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, w);
 337                 tdm_display_unlock(private_vblank->dpy);
 338
 339                 w->type = VBLANK_TYPE_SW_FAKE;
 340                 _tdm_vblank_wait_SW(w);
 341         }
 342 }
 343
 344 static void
 345 _tdm_vblank_free_HW_wait(tdm_private_vblank *private_vblank, tdm_error error, unsigned int call_cb)
 346 {
 347         tdm_vblank_wait_info *w = NULL, *ww = NULL;
 348
 349         if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list)) {
 350                 pid_t pid;
 351                 const char *proc_name;
 352                 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
 353                 VWR("TDM HW vblank destroyed forcely!! (pid: %u, name: %s)", pid, proc_name);
 354         }
 355
 356         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
 357                 LIST_DEL(&w->link);
 358                 _tdm_vblank_valid_list_del(&w->valid_link);
 359
 360                 tdm_display_lock(private_vblank->dpy);
 361                 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, w);
 362                 tdm_display_unlock(private_vblank->dpy);
 363
 364                 VDB("wait(%p) last(%.6f) sequence(%u) done (error:%d, call_cb:%u)",
 365                         w, (double)0.0, w->target_seq, error, call_cb);
 366
 367                 if (call_cb && w->func)
 368                         w->func(private_vblank, error, 0, 0, 0, w->user_data);
 369
 370                 free(w);
 371         }
 372 }
 373
 374 static void
 375 _tdm_vblank_update_output_info(tdm_private_vblank *private_vblank)
 376 {
 377         tdm_output *output = private_vblank->output;
 378         tdm_output_conn_status connection = TDM_OUTPUT_CONN_STATUS_DISCONNECTED;
 379         unsigned int vrefresh = TDM_VBLANK_DEFAULT_VREFRESH;
 380         tdm_error ret;
 381
 382         ret = tdm_output_get_conn_status(output, &connection);
 383         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 384
 385         if (connection == TDM_OUTPUT_CONN_STATUS_MODE_SETTED) {
 386                 const tdm_output_mode *mode = NULL;
 387                 tdm_output_get_mode(output, &mode);
 388                 if (mode)
 389                         vrefresh = mode->vrefresh;
 390                 else
 391                         VWR("mode not setted!!!");
 392         }
 393
 394         private_vblank->connection = connection;
 395         private_vblank->vrefresh = vrefresh;
 396         private_vblank->HW_vblank_gap = 1.0 / private_vblank->vrefresh;
 397
 398         if (private_vblank->fps_changeable)
 399                 private_vblank->fps = vrefresh;
 400
 401         VIN("connection(%d) vrefresh(%d) fps(%d) fps_changeable(%d)",
 402                 private_vblank->connection,
 403                 private_vblank->vrefresh, private_vblank->fps, private_vblank->fps_changeable);
 404 }
 405
 406 /* LCOV_EXCL_START */
 407 static void
 408 _tdm_vblank_cb_output_change(tdm_output *output, tdm_output_change_type type,
 409                                                          tdm_value value, void *user_data)
 410 {
 411         tdm_private_vblank *private_vblank = user_data;
 412
 413         TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
 414
 415         switch (type) {
 416         case TDM_OUTPUT_CHANGE_DPMS:
 417                 VIN("dpms %s", tdm_dpms_str(value.u32));
 418                 private_vblank->check_HW_or_SW = 1;
 419                 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(value.u32)) {
 420                         if (private_vblank->enable_fake)
 421                                 _tdm_vblank_change_to_SW(private_vblank);
 422                         else {
 423                                 tdm_display_lock(private_vblank->dpy);
 424                                 _tdm_vblank_timeout_timer_update(private_vblank, 0);
 425                                 tdm_display_unlock(private_vblank->dpy);
 426
 427                                 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_DPMS_OFF, 1);
 428                         }
 429                 }
 430                 break;
 431         case TDM_OUTPUT_CHANGE_CONNECTION:
 432                 if (private_vblank->connection == value.u32)
 433                         break;
 434                 VIN("output %s", tdm_status_str(value.u32));
 435                 _tdm_vblank_update_output_info(private_vblank);
 436                 private_vblank->check_HW_or_SW = 1;
 437                 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
 438                         if (private_vblank->enable_fake)
 439                                 _tdm_vblank_change_to_SW(private_vblank);
 440                         else {
 441                                 tdm_display_lock(private_vblank->dpy);
 442                                 _tdm_vblank_timeout_timer_update(private_vblank, 0);
 443                                 tdm_display_unlock(private_vblank->dpy);
 444
 445                                 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_OUTPUT_DISCONNECTED, 1);
 446                         }
 447                 }
 448                 break;
 449         default:
 450                 break;
 451         }
 452 }
 453 /* LCOV_EXCL_STOP */
 454
 455 EXTERN tdm_error
 456 tdm_vblank_set_client_vblank_fps(unsigned int pid, const char *name, unsigned int fps)
 457 {
 458         tdm_private_vblank *v = NULL;
 459
 460         TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
 461         TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 462
 463         TDM_INFO("pid: %u, name: %s, fps: %d", pid, name, fps);
 464
 465         pthread_mutex_lock(&valid_list_lock);
 466         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 467                 struct wl_client *client;
 468                 pid_t client_pid = 0;
 469
 470                 if (!v->resource)
 471                         continue;
 472
 473                 client = wl_resource_get_client(v->resource);
 474                 if (!client)
 475                         continue;
 476
 477                 wl_client_get_credentials(client, &client_pid, NULL, NULL);
 478
 479                 if (client_pid != pid)
 480                         continue;
 481
 482                 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
 483                         if (strncmp(v->name, name, TDM_NAME_LEN))
 484                                 continue;
 485                 }
 486
 487                 tdm_vblank_set_fps(v, fps);
 488
 489                 TDM_INFO("(pid:%u) '%s' fps changed: %d", pid, v->name, fps);
 490         }
 491         pthread_mutex_unlock(&valid_list_lock);
 492
 493         return TDM_ERROR_NONE;
 494 }
 495
 496 EXTERN tdm_error
 497 tdm_vblank_set_client_ignore_global_fps(unsigned int pid, const char *name, unsigned int ignore)
 498 {
 499         tdm_private_vblank *v = NULL;
 500
 501         TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
 502
 503         TDM_INFO("pid: %u, name: %s, ignore: %u", pid, name, ignore);
 504
 505         pthread_mutex_lock(&valid_list_lock);
 506         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 507                 struct wl_client *client;
 508                 pid_t client_pid = 0;
 509
 510                 if (!v->resource)
 511                         continue;
 512
 513                 client = wl_resource_get_client(v->resource);
 514                 if (!client)
 515                         continue;
 516
 517                 wl_client_get_credentials(client, &client_pid, NULL, NULL);
 518
 519                 if (client_pid != pid)
 520                         continue;
 521
 522                 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
 523                         if (strncmp(v->name, name, TDM_NAME_LEN))
 524                                 continue;
 525                 }
 526
 527                 tdm_vblank_ignore_global_fps(v, ignore);
 528
 529                 TDM_INFO("(pid:%u) '%s' ignore changed: %u", pid, v->name, ignore);
 530         }
 531         pthread_mutex_unlock(&valid_list_lock);
 532
 533         return TDM_ERROR_NONE;
 534 }
 535
 536 EXTERN tdm_error
 537 tdm_vblank_enable_global_fps(unsigned int enable, unsigned int fps)
 538 {
 539         tdm_private_vblank *v = NULL;
 540
 541         if (enable)
 542                 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 543
 544         TDM_INFO("global fps: %s fps(%d)", (enable) ? "enabled" : "disabled", fps);
 545
 546         pthread_mutex_lock(&valid_list_lock);
 547
 548         vblank_global_fps = (enable) ? fps : 0;
 549
 550         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 551                 /* skip if vblank is created in server side */
 552                 if (!v->resource)
 553                         continue;
 554
 555                 v->check_HW_or_SW = 1;
 556         }
 557         pthread_mutex_unlock(&valid_list_lock);
 558
 559         return TDM_ERROR_NONE;
 560 }
 561
 562 static void
 563 _tdm_vblank_thread_cb_create(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data)
 564 {
 565         tdm_thread_cb_vblank_create *vblank_create = (tdm_thread_cb_vblank_create *)cb_base;
 566         tdm_vblank_create_handler_info *ch_info = user_data;
 567         tdm_private_vblank *private_vblank;
 568
 569         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 570
 571         assert(ch_info != NULL);
 572
 573         private_vblank = _tdm_vblank_find_object(private_display, vblank_create->vblank_stamp);
 574         if (!private_vblank) {
 575                 TDM_DBG("can't find vblank(%.0f) from valid_list", vblank_create->vblank_stamp);
 576                 return;
 577         }
 578
 579         private_vblank->in_create_handler = 1;
 580         tdm_display_unlock(private_display);
 581         ch_info->func(private_vblank, ch_info->user_data);
 582         tdm_display_lock(private_display);
 583         private_vblank->in_create_handler = 0;
 584 }
 585
 586 static tdm_error
 587 _tdm_vblank_call_thread_cb(tdm_private_vblank *private_vblank)
 588 {
 589         tdm_thread_cb_vblank_create vblank_create;
 590         tdm_error ret;
 591
 592         memset(&vblank_create, 0, sizeof vblank_create);
 593         vblank_create.base.type = TDM_THREAD_CB_VBLANK_CREATE;
 594         vblank_create.base.length = sizeof vblank_create;
 595         vblank_create.base.object_stamp = 1;
 596         vblank_create.base.data = NULL;
 597         vblank_create.base.sync = 0;
 598         vblank_create.vblank_stamp = private_vblank->stamp;
 599
 600         ret = tdm_thread_cb_call(private_vblank->dpy, &vblank_create.base);
 601         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 602
 603         return TDM_ERROR_NONE;
 604 }
 605
 606 EXTERN tdm_error
 607 tdm_vblank_add_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
 608 {
 609         tdm_vblank_create_handler_info *ch_info = NULL;
 610         tdm_error ret;
 611
 612         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 613         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 614
 615         pthread_mutex_lock(&valid_list_lock);
 616
 617         LIST_FOR_EACH_ENTRY(ch_info, &create_handler_list, link) {
 618                 if (ch_info->func == func && ch_info->user_data == user_data) {
 619                         TDM_ERR("can't be added twice");
 620                         pthread_mutex_unlock(&valid_list_lock);
 621                         return TDM_ERROR_BAD_REQUEST;
 622                 }
 623         }
 624
 625         ch_info = calloc(1, sizeof *ch_info);
 626         if (!ch_info) {
 627                 TDM_ERR("alloc failed: %m");
 628                 pthread_mutex_unlock(&valid_list_lock);
 629                 return TDM_ERROR_OUT_OF_MEMORY;
 630         }
 631
 632         tdm_display_lock(dpy);
 633         ret = tdm_thread_cb_add(dpy, TDM_THREAD_CB_VBLANK_CREATE, NULL, _tdm_vblank_thread_cb_create, ch_info);
 634         tdm_display_unlock(dpy);
 635
 636         if (ret != TDM_ERROR_NONE) {
 637                 TDM_ERR("tdm_thread_cb_add failed");
 638                 free(ch_info);
 639                 pthread_mutex_unlock(&valid_list_lock);
 640                 return ret;
 641         }
 642
 643         ch_info->func = func;
 644         ch_info->user_data = user_data;
 645
 646         LIST_ADDTAIL(&ch_info->link, &create_handler_list);
 647
 648         pthread_mutex_unlock(&valid_list_lock);
 649
 650         return TDM_ERROR_NONE;
 651 }
 652
 653 EXTERN void
 654 tdm_vblank_remove_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
 655 {
 656         tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
 657
 658         TDM_RETURN_IF_FAIL(dpy != NULL);
 659         TDM_RETURN_IF_FAIL(func != NULL);
 660
 661         tdm_display_lock(dpy);
 662         pthread_mutex_lock(&valid_list_lock);
 663         LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
 664                 if (ch_info->func != func || ch_info->user_data != user_data)
 665                         continue;
 666
 667                 tdm_thread_cb_remove(dpy, TDM_THREAD_CB_VBLANK_CREATE, NULL, _tdm_vblank_thread_cb_create, ch_info);
 668
 669                 LIST_DEL(&ch_info->link);
 670                 free(ch_info);
 671                 pthread_mutex_unlock(&valid_list_lock);
 672                 tdm_display_unlock(dpy);
 673                 return;
 674         }
 675         pthread_mutex_unlock(&valid_list_lock);
 676         tdm_display_unlock(dpy);
 677 }
 678
 679 static void*
 680 _tdm_vblank_find_display(tdm_private_display *private_display, double stamp)
 681 {
 682         return private_display;
 683 }
 684
 685 INTERN tdm_error
 686 tdm_vblank_init(tdm_display *dpy)
 687 {
 688         if (vblank_list_inited)
 689                 return TDM_ERROR_NONE;
 690
 691         LIST_INITHEAD(&valid_vblank_list);
 692         LIST_INITHEAD(&valid_wait_list);
 693         LIST_INITHEAD(&create_handler_list);
 694
 695         tdm_thread_cb_set_find_func(TDM_THREAD_CB_VBLANK_SW, _tdm_vblank_find_object);
 696         tdm_thread_cb_set_find_func(TDM_THREAD_CB_VBLANK_CREATE, _tdm_vblank_find_display);
 697
 698         vblank_list_inited = 1;
 699
 700         return TDM_ERROR_NONE;
 701 }
 702
 703 INTERN void
 704 tdm_vblank_deinit(tdm_display *dpy)
 705 {
 706         tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
 707
 708         if (!vblank_list_inited)
 709                 return;
 710
 711         if (!LIST_IS_EMPTY(&valid_vblank_list))
 712                 TDM_NEVER_GET_HERE();
 713
 714         if (!LIST_IS_EMPTY(&valid_wait_list))
 715                 TDM_NEVER_GET_HERE();
 716
 717         LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
 718                 LIST_DEL(&ch_info->link);
 719                 free(ch_info);
 720         }
 721
 722         vblank_list_inited = 0;
 723 }
 724
 725 EXTERN tdm_vblank *
 726 tdm_vblank_create(tdm_display *dpy, tdm_output *output, tdm_error *error)
 727 {
 728         tdm_private_vblank *private_vblank;
 729         tdm_error ret;
 730
 731         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_display_is_valid(dpy), TDM_ERROR_INVALID_PARAMETER, NULL);
 732         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_output_is_valid(output), TDM_ERROR_INVALID_PARAMETER, NULL);
 733
 734         if (error)
 735                 *error = TDM_ERROR_NONE;
 736
 737         private_vblank = calloc(1, sizeof * private_vblank);
 738         if (!private_vblank) {
 739                 /* LCOV_EXCL_START */
 740                 if (error)
 741                         *error = TDM_ERROR_OUT_OF_MEMORY;
 742                 TDM_ERR("alloc failed");
 743                 return NULL;
 744                 /* LCOV_EXCL_STOP */
 745         }
 746
 747         ret = tdm_output_add_change_handler(output, _tdm_vblank_cb_output_change, private_vblank);
 748         if (ret != TDM_ERROR_NONE) {
 749                 free(private_vblank);
 750                 if (error)
 751                         *error = TDM_ERROR_OPERATION_FAILED;
 752                 TDM_ERR("tdm_output_add_change_handler failed");
 753                 return NULL;
 754         }
 755
 756         private_vblank->stamp = ++stamp;
 757         private_vblank->owner_tid = syscall(SYS_gettid);
 758         private_vblank->dpy = dpy;
 759         private_vblank->output = output;
 760         private_vblank->check_HW_or_SW = 1;
 761         private_vblank->fps_changeable = 1;
 762         private_vblank->last_interval = -1;
 763
 764         _tdm_vblank_update_output_info(private_vblank);
 765
 766         strncpy(private_vblank->name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN - 1);
 767         private_vblank->name[TDM_NAME_LEN - 1] = '\0';
 768
 769         LIST_INITHEAD(&private_vblank->HW_wait_list);
 770         LIST_INITHEAD(&private_vblank->SW_wait_list);
 771
 772         _tdm_vblank_valid_list_add(&private_vblank->valid_link, &valid_vblank_list);
 773
 774         VIN("created. vrefresh(%d) connection(%d)",
 775                 private_vblank->vrefresh, private_vblank->connection);
 776
 777         tdm_display_lock(private_vblank->dpy);
 778         _tdm_vblank_call_thread_cb(private_vblank);
 779         tdm_display_unlock(private_vblank->dpy);
 780
 781         return (tdm_vblank *)private_vblank;
 782 }
 783
 784 EXTERN void
 785 tdm_vblank_destroy(tdm_vblank *vblank)
 786 {
 787         tdm_private_vblank *private_vblank = vblank;
 788         tdm_vblank_wait_info *w = NULL, *ww = NULL;
 789
 790         TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(vblank));
 791
 792         if (private_vblank->in_create_handler) {
 793                 TDM_ERR("NOT allowed to be called in a create handler");
 794                 return;
 795         }
 796
 797         _tdm_vblank_valid_list_del(&private_vblank->valid_link);
 798
 799         if (private_vblank->SW_timer) {
 800                 tdm_display_lock(private_vblank->dpy);
 801                 tdm_thread_cb_remove(private_vblank, TDM_THREAD_CB_VBLANK_SW, NULL, _tdm_vblank_cb_vblank_SW, NULL);
 802                 tdm_event_loop_source_remove(private_vblank->SW_timer);
 803                 tdm_display_unlock(private_vblank->dpy);
 804         }
 805
 806         tdm_output_remove_change_handler(private_vblank->output,
 807                                                                          _tdm_vblank_cb_output_change, private_vblank);
 808
 809         _tdm_vblank_free_HW_wait(private_vblank, 0, 0);
 810
 811         if (!LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
 812                 pid_t pid;
 813                 const char *proc_name;
 814                 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
 815                 VER("TDM SW vblank destroyed forcely!! (pid: %u, name: %s)", pid, proc_name);
 816         }
 817
 818         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
 819                 LIST_DEL(&w->link);
 820                 _tdm_vblank_valid_list_del(&w->valid_link);
 821                 free(w);
 822         }
 823
 824         if (private_vblank->timeout_timer) {
 825                 tdm_display_lock(private_vblank->dpy);
 826                 tdm_event_loop_source_remove(private_vblank->timeout_timer);
 827                 tdm_display_unlock(private_vblank->dpy);
 828         }
 829
 830         VIN("destroyed");
 831
 832         free(private_vblank);
 833 }
 834
 835 EXTERN tdm_output *
 836 tdm_vblank_get_output(tdm_vblank *vblank, tdm_error *error)
 837 {
 838         tdm_private_vblank *private_vblank = vblank;
 839         tdm_error ret = TDM_ERROR_NONE;
 840
 841         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER, NULL);
 842
 843         if (error)
 844                 *error = TDM_ERROR_NONE;
 845
 846         return private_vblank->output;
 847 }
 848
 849 EXTERN tdm_error
 850 tdm_vblank_get_client_pid(tdm_vblank *vblank, pid_t *pid)
 851 {
 852         tdm_private_vblank *private_vblank = vblank;
 853         struct wl_client *client;
 854
 855         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 856         TDM_RETURN_VAL_IF_FAIL(pid != NULL, TDM_ERROR_INVALID_PARAMETER);
 857
 858         if (!private_vblank->resource) {
 859                 *pid = 0;
 860                 return TDM_ERROR_NONE;
 861         }
 862
 863         client = wl_resource_get_client(private_vblank->resource);
 864         if (!client) {
 865                 *pid = 0;
 866                 return TDM_ERROR_NONE;
 867         }
 868
 869         wl_client_get_credentials(client, pid, NULL, NULL);
 870
 871         return TDM_ERROR_NONE;
 872 }
 873
 874 EXTERN tdm_error
 875 tdm_vblank_set_name(tdm_vblank *vblank, const char *name)
 876 {
 877         tdm_private_vblank *private_vblank = vblank;
 878
 879         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 880
 881         if (!name)
 882                 name = TDM_VBLANK_DEFAULT_NAME;
 883
 884         strncpy(private_vblank->name, name, TDM_NAME_LEN - 1);
 885         private_vblank->name[TDM_NAME_LEN - 1] = '\0';
 886
 887         VIN("name(%s)", name);
 888
 889         return TDM_ERROR_NONE;
 890 }
 891
 892 EXTERN tdm_error
 893 tdm_vblank_get_name(tdm_vblank *vblank, const char **name)
 894 {
 895         tdm_private_vblank *private_vblank = vblank;
 896
 897         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 898         TDM_RETURN_VAL_IF_FAIL(name != NULL, TDM_ERROR_INVALID_PARAMETER);
 899
 900         *name = (const char*)private_vblank->name;
 901
 902         return TDM_ERROR_NONE;
 903 }
 904
 905 EXTERN tdm_error
 906 tdm_vblank_set_fps(tdm_vblank *vblank, unsigned int fps)
 907 {
 908         tdm_private_vblank *private_vblank = vblank;
 909
 910         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 911         TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 912
 913         if (private_vblank->fps_fixed) {
 914                 VIN("fps(%u) can't be changed", private_vblank->fps);
 915                 return TDM_ERROR_NONE;
 916         }
 917
 918         private_vblank->fps_changeable = 0;
 919
 920         if (private_vblank->fps == fps)
 921                 return TDM_ERROR_NONE;
 922
 923         private_vblank->fps = fps;
 924         private_vblank->check_HW_or_SW = 1;
 925
 926         VIN("fps(%u) changed", fps);
 927
 928         return TDM_ERROR_NONE;
 929 }
 930
 931 EXTERN tdm_error
 932 tdm_vblank_get_fps(tdm_vblank *vblank, unsigned int *fps)
 933 {
 934         tdm_private_vblank *private_vblank = vblank;
 935
 936         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 937         TDM_RETURN_VAL_IF_FAIL(fps != NULL, TDM_ERROR_INVALID_PARAMETER);
 938
 939         *fps = private_vblank->fps;
 940
 941         return TDM_ERROR_NONE;
 942 }
 943
 944 EXTERN tdm_error
 945 tdm_vblank_set_fixed_fps(tdm_vblank *vblank, unsigned int fps)
 946 {
 947         tdm_private_vblank *private_vblank = vblank;
 948
 949         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 950         TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 951
 952         private_vblank->fps_changeable = 0;
 953         private_vblank->fps_fixed = 1;
 954
 955         if (private_vblank->fps == fps)
 956                 return TDM_ERROR_NONE;
 957
 958         private_vblank->fps = fps;
 959         private_vblank->check_HW_or_SW = 1;
 960
 961         VIN("fps(%u) fixed", fps);
 962
 963         return TDM_ERROR_NONE;
 964 }
 965
 966 EXTERN tdm_error
 967 tdm_vblank_ignore_global_fps(tdm_vblank *vblank, unsigned int ignore)
 968 {
 969         tdm_private_vblank *private_vblank = vblank;
 970
 971         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 972
 973         if (private_vblank->ignore_global_fps == ignore)
 974                 return TDM_ERROR_NONE;
 975
 976         private_vblank->ignore_global_fps = ignore;
 977         private_vblank->check_HW_or_SW = 1;
 978
 979         VIN("ignore_global_fps(%u)", private_vblank->ignore_global_fps);
 980
 981         return TDM_ERROR_NONE;
 982 }
 983
 984 EXTERN tdm_error
 985 tdm_vblank_set_offset(tdm_vblank *vblank, int offset)
 986 {
 987         tdm_private_vblank *private_vblank = vblank;
 988
 989         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 990         TDM_RETURN_VAL_IF_FAIL(offset >= 0, TDM_ERROR_INVALID_PARAMETER);
 991
 992         if (private_vblank->offset == offset)
 993                 return TDM_ERROR_NONE;
 994
 995         private_vblank->offset = offset;
 996         private_vblank->check_HW_or_SW = 1;
 997
 998         VIN("offset(%u)", private_vblank->offset);
 999
1000         return TDM_ERROR_NONE;
1001 }
1002
1003 EXTERN tdm_error
1004 tdm_vblank_get_offset(tdm_vblank *vblank, int *offset)
1005 {
1006         tdm_private_vblank *private_vblank = vblank;
1007
1008         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1009         TDM_RETURN_VAL_IF_FAIL(offset != NULL, TDM_ERROR_INVALID_PARAMETER);
1010
1011         *offset = private_vblank->offset;
1012
1013         return TDM_ERROR_NONE;
1014 }
1015
1016 EXTERN tdm_error
1017 tdm_vblank_set_enable_fake(tdm_vblank *vblank, unsigned int enable_fake)
1018 {
1019         tdm_private_vblank *private_vblank = vblank;
1020
1021         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1022
1023         if (private_vblank->enable_fake == enable_fake)
1024                 return TDM_ERROR_NONE;
1025
1026         private_vblank->enable_fake = enable_fake;
1027
1028         VIN("enable_fake(%u)", private_vblank->enable_fake);
1029
1030         return TDM_ERROR_NONE;
1031 }
1032
1033 EXTERN tdm_error
1034 tdm_vblank_get_enable_fake(tdm_vblank *vblank, unsigned int *enable_fake)
1035 {
1036         tdm_private_vblank *private_vblank = vblank;
1037
1038         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1039         TDM_RETURN_VAL_IF_FAIL(enable_fake != NULL, TDM_ERROR_INVALID_PARAMETER);
1040
1041         *enable_fake = private_vblank->enable_fake;
1042
1043         return TDM_ERROR_NONE;
1044 }
1045
1046 static tdm_error
1047 _tdm_vblank_timeout_timer_cb(void *user_data)
1048 {
1049         tdm_private_vblank *private_vblank = user_data;
1050         tdm_vblank_wait_info *w = NULL;
1051         pid_t pid;
1052         const char *proc_name;
1053
1054         TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_OPERATION_FAILED);
1055
1056         _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
1057
1058         VER("TDM vblank TIMEOUT!! (pid: %u, name: %s)", pid, proc_name);
1059         VER("quotient(%u) last_seq(%u) last_time(%.6f)", private_vblank->quotient, private_vblank->last_seq, private_vblank->last_time);
1060
1061         LIST_FOR_EACH_ENTRY(w, &private_vblank->HW_wait_list, link) {
1062                 VER("wait_info(%p) req_time(%.6f) target_seq(%u) interval(%u) hw_interval(%d)",
1063                         w, w->req_time, w->target_seq, w->interval, w->hw_interval);
1064                 tdm_output_vblank_print_wait_information(private_vblank->output, w);
1065         }
1066
1067         LIST_FOR_EACH_ENTRY(w, &private_vblank->SW_wait_list, link) {
1068                 VER("wait_info(%p) req_time(%.6f) target_time(%.6f) target_seq(%u) interval(%u)",
1069                         w, w->req_time, w->target_time, w->target_seq, w->interval);
1070         }
1071
1072         return TDM_ERROR_NONE;
1073 }
1074
1075 static void
1076 _tdm_vblank_timeout_timer_update(tdm_private_vblank *private_vblank, int ms_delay)
1077 {
1078         tdm_error ret;
1079
1080         if (!private_vblank->timeout_timer) {
1081                 private_vblank->timeout_timer =
1082                         tdm_event_loop_add_timer_handler(private_vblank->dpy,
1083                                                                                          _tdm_vblank_timeout_timer_cb,
1084                                                                                          private_vblank,
1085                                                                                          &ret);
1086                 if (!private_vblank->timeout_timer) {
1087                         VER("couldn't add timer");
1088                         return;
1089                 }
1090                 VIN("Create Timeout timer");
1091         }
1092
1093         ret = tdm_event_loop_source_timer_update(private_vblank->timeout_timer, ms_delay);
1094         if (ret != TDM_ERROR_NONE) {
1095                 VER("couldn't update timer");
1096                 return;
1097         }
1098
1099         if (ms_delay != 0)
1100                 VDB("timeout timer updated");
1101         else
1102                 VDB("timeout timer disabled");
1103 }
1104
1105 static tdm_error
1106 _tdm_vblank_sw_timer_update(tdm_private_vblank *private_vblank)
1107 {
1108         tdm_vblank_wait_info *first_wait_info = NULL;
1109         double curr, target;
1110         int ms_delay;
1111         tdm_error ret;
1112
1113         if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1114                 VER("no wait_info");
1115                 return TDM_ERROR_OPERATION_FAILED;
1116         }
1117
1118         first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1119         curr = tdm_helper_get_time();
1120         target = first_wait_info->target_time;
1121
1122         /* ms_delay should be more that 1 */
1123         if (target < curr)
1124                 ms_delay = 1;
1125         else
1126                 ms_delay = ceil((target - curr) * 1000.0);
1127
1128         if (ms_delay < 1)
1129                 ms_delay = 1;
1130
1131         if (ms_delay > 5000)
1132                 VER("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1133         else
1134                 VDB("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1135
1136         tdm_display_lock(private_vblank->dpy);
1137
1138         if (!private_vblank->SW_timer) {
1139                 private_vblank->SW_timer =
1140                         tdm_event_loop_add_timer_handler(private_vblank->dpy,
1141                                                                                          _tdm_vblank_cb_timeout_SW,
1142                                                                                          private_vblank,
1143                                                                                          &ret);
1144                 if (!private_vblank->SW_timer) {
1145                         tdm_display_unlock(private_vblank->dpy);
1146                         VER("couldn't add timer");
1147                         return ret;
1148                 }
1149
1150                 ret = tdm_thread_cb_add(private_vblank, TDM_THREAD_CB_VBLANK_SW, NULL, _tdm_vblank_cb_vblank_SW, NULL);
1151                 if (ret != TDM_ERROR_NONE) {
1152                         tdm_event_loop_source_remove(private_vblank->SW_timer);
1153                         private_vblank->SW_timer = NULL;
1154                         tdm_display_unlock(private_vblank->dpy);
1155                         VER("couldn't add thread_cb");
1156                         return ret;
1157                 }
1158
1159                 VIN("Create SW timer");
1160         }
1161
1162         private_vblank->last_interval = ms_delay;
1163
1164         ret = tdm_event_loop_source_timer_update(private_vblank->SW_timer, ms_delay);
1165         if (ret != TDM_ERROR_NONE) {
1166                 /* LCOV_EXCL_START */
1167                 tdm_display_unlock(private_vblank->dpy);
1168                 VER("couldn't update timer");
1169                 return ret;
1170                 /* LCOV_EXCL_STOP */
1171         }
1172
1173         tdm_display_unlock(private_vblank->dpy);
1174
1175         return TDM_ERROR_NONE;
1176 }
1177
1178 static void
1179 _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
1180                                                  unsigned int tv_sec, unsigned int tv_usec,
1181                                                  void *user_data)
1182 {
1183         tdm_vblank_wait_info *wait_info = user_data;
1184         tdm_private_vblank *private_vblank;
1185
1186         if (!_tdm_vblank_check_valid_wait(wait_info)) {
1187                 TDM_ERR("can't find wait(%p) from valid_wait_list", wait_info);
1188                 return;
1189         }
1190
1191         private_vblank = wait_info->private_vblank;
1192         TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
1193
1194         assert(private_vblank->owner_tid == syscall(SYS_gettid));
1195
1196         if (!_tdm_vblank_find_wait(wait_info, &private_vblank->HW_wait_list)) {
1197                 VER("can't find wait(%p)", wait_info);
1198                 return;
1199         }
1200
1201         if (wait_info->type == VBLANK_TYPE_HW_SW) {
1202                 tdm_error ret;
1203
1204                 LIST_DEL(&wait_info->link);
1205
1206                 /* kernel sends the wrong time of first vblank event. and the time of
1207                  * second vblank is correct.
1208                  */
1209                 wait_info->target_time = TDM_TIME(tv_sec, tv_usec);
1210                 wait_info->target_time += (((double)private_vblank->offset) / 1000.0);
1211
1212                 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1213
1214                 ret = _tdm_vblank_sw_timer_update(private_vblank);
1215
1216                 /* wait_info will be freed in _tdm_vblank_cb_timeout_SW() */
1217                 if (ret == TDM_ERROR_NONE) {
1218                         VIN("wait(%p) SW timer", wait_info);
1219                         return;
1220                 }
1221
1222                 VER("couldn't update sw timer");
1223         }
1224
1225         tdm_display_lock(private_vblank->dpy);
1226         _tdm_vblank_timeout_timer_update(private_vblank, 0);
1227         tdm_display_unlock(private_vblank->dpy);
1228
1229         LIST_DEL(&wait_info->link);
1230         _tdm_vblank_valid_list_del(&wait_info->valid_link);
1231
1232         /* tv_sec & tv_usec shouldn't be zero. But sometimes they are zero in some hardware.
1233          * We need to prohibit that last_time becomes zero because "last_time == 0" means
1234          * that a tdm_vblank object is just created and doesn't have the first vblank event.
1235          * If last_time becomes 0, it would make issue.
1236          */
1237         if (tv_sec == 0 && tv_usec == 0) {
1238                 double curr = tdm_helper_get_time();
1239                 tv_sec = TDM_TIME_SEC(curr);
1240                 tv_usec = TDM_TIME_USEC(curr);
1241         }
1242
1243         private_vblank->last_seq = wait_info->target_seq;
1244         private_vblank->last_time = TDM_TIME(tv_sec, tv_usec);
1245
1246         VDB("wait(%p) last(%.6f) sequence(%u) done", wait_info, private_vblank->last_time, wait_info->target_seq);
1247
1248         if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1249                 TDM_TRACE_ASYNC_END((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1250
1251         if (wait_info->func)
1252                 wait_info->func(private_vblank, TDM_ERROR_NONE, wait_info->target_seq,
1253                                                 tv_sec, tv_usec, wait_info->user_data);
1254
1255         free(wait_info);
1256 }
1257
1258 static tdm_error
1259 _tdm_vblank_wait_HW(tdm_vblank_wait_info *wait_info)
1260 {
1261         tdm_private_vblank *private_vblank = wait_info->private_vblank;
1262         int hw_interval;
1263         tdm_error ret;
1264
1265         if (private_vblank->last_type != VBLANK_EVENT_TYPE_HW) {
1266                 VIN("Use HW vblank");
1267                 private_vblank->last_type = VBLANK_EVENT_TYPE_HW;
1268         }
1269
1270         _tdm_vblank_insert_wait(wait_info, &private_vblank->HW_wait_list);
1271
1272         if (private_vblank->last_time == 0) {
1273                 hw_interval = wait_info->interval * private_vblank->quotient;
1274
1275                 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1276                 private_vblank->last_seq = 0;
1277                 private_vblank->last_time = tdm_helper_get_time();
1278
1279                 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1280                 wait_info->target_seq = 1;
1281
1282                 VDB("wait(%p) last(%.6f) hw_itvl(%d) targ_seq(%u)",
1283                         wait_info, private_vblank->last_time, hw_interval, wait_info->target_seq);
1284         } else {
1285                 double last, prev, req, curr, target;
1286                 unsigned int skip;
1287
1288                 last = private_vblank->last_time;
1289                 req = wait_info->req_time;
1290
1291                 /* make sure that req time is bigger than last. */
1292                 if (req < last)
1293                         req = last;
1294
1295                 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1296                 prev = last + private_vblank->vblank_gap * skip;
1297
1298                 curr = tdm_helper_get_time();
1299                 target = last;
1300                 while (target < curr)
1301                         target += (private_vblank->vblank_gap * wait_info->interval);
1302
1303                 hw_interval = (unsigned int)((target - curr) / private_vblank->HW_vblank_gap + TDM_TIME_MARGIN) + 1;
1304
1305                 wait_info->target_seq = private_vblank->last_seq;
1306                 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1307
1308                 if (hw_interval > 300)
1309                         VER("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1310                                 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1311                                 skip, hw_interval, wait_info->target_seq);
1312                 else
1313                         VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1314                                 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1315                                 skip, hw_interval, wait_info->target_seq);
1316         }
1317
1318         private_vblank->last_interval = hw_interval;
1319         wait_info->hw_interval = hw_interval;
1320
1321         if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1322                 TDM_TRACE_ASYNC_BEGIN((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1323
1324         if (private_vblank->add_front)
1325                 ret = tdm_output_wait_vblank_add_front(private_vblank->output, hw_interval, 0,
1326                                                                                            _tdm_vblank_cb_vblank_HW, wait_info);
1327         else
1328                 ret = tdm_output_wait_vblank(private_vblank->output, hw_interval, 0,
1329                                                                          _tdm_vblank_cb_vblank_HW, wait_info);
1330
1331         if (ret != TDM_ERROR_NONE) {
1332                 LIST_DEL(&wait_info->link);
1333                 return ret;
1334         }
1335
1336         VDB("wait(%p) waiting", wait_info);
1337
1338         return TDM_ERROR_NONE;
1339 }
1340
1341 static void
1342 _tdm_vblank_cb_vblank_SW(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data)
1343 {
1344         tdm_private_vblank *private_vblank = object;
1345         tdm_vblank_wait_info *first_wait_info = NULL, *w = NULL, *ww = NULL;
1346
1347         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
1348
1349         assert(private_vblank->owner_tid == syscall(SYS_gettid));
1350
1351         if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1352                 VER("no wait_info");
1353                 return;
1354         }
1355
1356         if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list))
1357                 TDM_NEVER_GET_HERE();
1358
1359         first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1360         TDM_RETURN_IF_FAIL(first_wait_info != NULL);
1361
1362         _tdm_vblank_timeout_timer_update(private_vblank, 0);
1363
1364         if (private_vblank->last_seq >= first_wait_info->target_seq)
1365                 TDM_ERR("last_seq(%u) target_seq(%u)", private_vblank->last_seq, first_wait_info->target_seq);
1366
1367         private_vblank->last_seq = first_wait_info->target_seq;
1368         private_vblank->last_time = first_wait_info->target_time;
1369
1370         VDB("wait(%p) last(%.6f) sequence(%u) done", first_wait_info, private_vblank->last_time, first_wait_info->target_seq);
1371
1372         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
1373                 if (w->target_time != first_wait_info->target_time)
1374                         break;
1375
1376                 LIST_DEL(&w->link);
1377                 _tdm_vblank_valid_list_del(&w->valid_link);
1378
1379                 if (w->func) {
1380                         tdm_display_unlock(private_vblank->dpy);
1381                         w->func(private_vblank, TDM_ERROR_NONE, w->target_seq,
1382                                         TDM_TIME_SEC(w->target_time), TDM_TIME_USEC(w->target_time),
1383                                         w->user_data);
1384                         tdm_display_lock(private_vblank->dpy);
1385                 }
1386
1387                 free(w);
1388         }
1389 }
1390
1391 static tdm_error
1392 _tdm_vblank_cb_timeout_SW(void *user_data)
1393 {
1394         tdm_private_vblank *private_vblank = user_data;
1395         tdm_thread_cb_vblank_sw vblank_sw;
1396         tdm_error ret;
1397
1398         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(private_vblank), TDM_ERROR_OPERATION_FAILED);
1399
1400         VIN("timeout_SW -> thread-cb");
1401
1402         memset(&vblank_sw, 0, sizeof vblank_sw);
1403         vblank_sw.base.type = TDM_THREAD_CB_VBLANK_SW;
1404         vblank_sw.base.length = sizeof vblank_sw;
1405         vblank_sw.base.object_stamp = private_vblank->stamp;
1406         vblank_sw.base.data = NULL;
1407         vblank_sw.base.sync = 0;
1408
1409         ret = tdm_thread_cb_call(private_vblank, &vblank_sw.base);
1410         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
1411
1412         return TDM_ERROR_NONE;
1413 }
1414
1415 static tdm_error
1416 _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info)
1417 {
1418         tdm_private_vblank *private_vblank = wait_info->private_vblank;
1419         tdm_error ret;
1420
1421         if (private_vblank->last_type != VBLANK_EVENT_TYPE_SW) {
1422                 VIN("Use SW vblank");
1423                 private_vblank->last_type = VBLANK_EVENT_TYPE_SW;
1424         }
1425
1426         if (private_vblank->last_time == 0) {
1427                 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1428                 private_vblank->last_seq = 0;
1429                 private_vblank->last_time = tdm_helper_get_time();
1430
1431                 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1432                 wait_info->target_seq = 1;
1433                 wait_info->target_time = private_vblank->last_time + 0.001;
1434
1435                 VDB("wait(%p) last(%.6f) target(%.6f) target sequence(%u)",
1436                         wait_info, private_vblank->last_time, wait_info->target_time, wait_info->target_seq);
1437         } else {
1438                 double last, prev, req, curr, target;
1439                 unsigned int skip;
1440
1441                 last = private_vblank->last_time;
1442                 req = wait_info->req_time;
1443
1444                 /* make sure that req time is bigger than last. */
1445                 if (req < last)
1446                         req = last;
1447
1448                 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1449                 prev = last + private_vblank->vblank_gap * skip;
1450
1451                 curr = tdm_helper_get_time();
1452                 target = prev + private_vblank->vblank_gap * wait_info->interval;
1453
1454                 while (target < curr)
1455                         target += private_vblank->vblank_gap;
1456
1457                 wait_info->target_seq = private_vblank->last_seq;
1458                 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1459
1460                 wait_info->target_time = target;
1461
1462                 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) targ_seq(%u)",
1463                         wait_info, last, req - last, prev - last, curr - last,
1464                         target, target - last, skip, wait_info->target_seq);
1465         }
1466
1467         _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1468
1469         ret = _tdm_vblank_sw_timer_update(private_vblank);
1470         if (ret != TDM_ERROR_NONE) {
1471                 /* LCOV_EXCL_START */
1472                 LIST_DEL(&wait_info->link);
1473                 VER("couldn't update sw timer");
1474                 return ret;
1475                 /* LCOV_EXCL_STOP */
1476         }
1477
1478         return TDM_ERROR_NONE;
1479 }
1480
1481 EXTERN tdm_error
1482 tdm_vblank_wait(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1483                                 unsigned int interval, tdm_vblank_handler func, void *user_data)
1484 {
1485         tdm_private_vblank *private_vblank = vblank;
1486         tdm_vblank_wait_info *wait_info;
1487         tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1488         unsigned int fps;
1489         tdm_error ret;
1490
1491         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1492         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1493         TDM_RETURN_VAL_IF_FAIL(interval > 0, TDM_ERROR_INVALID_PARAMETER);
1494
1495         if (private_vblank->in_create_handler) {
1496                 TDM_ERR("NOT allowed to be called in a create handler");
1497                 return TDM_ERROR_BAD_REQUEST;
1498         }
1499
1500         if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1501                 TDM_ERR("SHOULD be called in the owner thread(%d)", (int)private_vblank->owner_tid);
1502                 return TDM_ERROR_BAD_REQUEST;
1503         }
1504
1505         tdm_output_get_dpms(private_vblank->output, &dpms);
1506
1507         if (!private_vblank->enable_fake) {
1508                 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
1509                         VER("can't wait a vblank: output disconnected");
1510                         return TDM_ERROR_OUTPUT_DISCONNECTED;
1511                 }
1512                 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms)) {
1513                         VER("can't wait a vblank: DPMS %s", tdm_dpms_str(dpms));
1514                         return TDM_ERROR_DPMS_OFF;
1515                 }
1516         }
1517
1518         wait_info = calloc(1, sizeof * wait_info);
1519         if (!wait_info) {
1520                 /* LCOV_EXCL_START */
1521                 VER("alloc failed");
1522                 return TDM_ERROR_OUT_OF_MEMORY;
1523                 /* LCOV_EXCL_STOP */
1524         }
1525         _tdm_vblank_update_output_info(private_vblank);
1526
1527         /* set request time to current time if 0. This function seems to be called in server side. */
1528         if (req_sec == 0 && req_usec == 0) {
1529                 double curr = tdm_helper_get_time();
1530                 req_sec = TDM_TIME_SEC(curr);
1531                 req_usec = TDM_TIME_USEC(curr);
1532         }
1533
1534         LIST_INITHEAD(&wait_info->link);
1535
1536         _tdm_vblank_valid_list_add(&wait_info->valid_link, &valid_wait_list);
1537
1538         wait_info->stamp = ++stamp;
1539         wait_info->req_time = TDM_TIME(req_sec, req_usec);
1540         wait_info->interval = interval;
1541         wait_info->func = func;
1542         wait_info->user_data = user_data;
1543         wait_info->private_vblank = private_vblank;
1544
1545         if (!private_vblank->resource ||
1546                 private_vblank->ignore_global_fps ||
1547                 vblank_global_fps == 0 ||
1548                 private_vblank->fps < vblank_global_fps)
1549                 fps = private_vblank->fps;
1550         else
1551                 fps = vblank_global_fps;
1552
1553         if (private_vblank->check_HW_or_SW) {
1554                 private_vblank->check_HW_or_SW = 0;
1555                 private_vblank->vblank_gap = 1.0 / fps;
1556                 private_vblank->quotient = private_vblank->vrefresh / fps;
1557         }
1558
1559         /* 1) if fps != factor of vrefresh, SW timer
1560          * 2) if fps == factor of vrefresh && dpms == off, SW timer (Fake HW vblank)
1561          * 2) if fps == factor of vrefresh && dpms == on && offset == 0, HW vblank
1562          * 3) if fps == factor of vrefresh && dpms == on && offset != 0, HW vblank + SW timer
1563          * In case of 1), we really don't need to align with HW vblank.
1564          */
1565         if (private_vblank->vrefresh % fps)
1566                 wait_info->type = VBLANK_TYPE_SW;
1567         else if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms) ||
1568                          private_vblank->connection != TDM_OUTPUT_CONN_STATUS_MODE_SETTED)
1569                 wait_info->type = VBLANK_TYPE_SW_FAKE;
1570         else if (private_vblank->offset == 0)
1571                 wait_info->type = VBLANK_TYPE_HW;
1572         else
1573                 wait_info->type = VBLANK_TYPE_HW_SW;
1574
1575         if (wait_info->type == VBLANK_TYPE_SW || wait_info->type == VBLANK_TYPE_SW_FAKE) {
1576                 ret = _tdm_vblank_wait_SW(wait_info);
1577                 if (ret != TDM_ERROR_NONE)
1578                         TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1579         } else {
1580                 ret = _tdm_vblank_wait_HW(wait_info);
1581                 if (ret != TDM_ERROR_NONE)
1582                         TDM_ERR("_tdm_vblank_wait_HW failed: ret(%d)", ret);
1583
1584                 if (ret == TDM_ERROR_OUTPUT_DISCONNECTED || ret == TDM_ERROR_DPMS_OFF) {
1585                         ret = _tdm_vblank_wait_SW(wait_info);
1586                         if (ret != TDM_ERROR_NONE)
1587                                 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1588                 }
1589         }
1590
1591         if (ret != TDM_ERROR_NONE) {
1592                 /* LCOV_EXCL_START */
1593                 LIST_DEL(&wait_info->link);
1594                 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1595
1596                 tdm_display_lock(private_vblank->dpy);
1597                 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, wait_info);
1598                 tdm_display_unlock(private_vblank->dpy);
1599
1600                 free(wait_info);
1601                 return ret;
1602                 /* LCOV_EXCL_STOP */
1603         }
1604
1605         tdm_display_lock(private_vblank->dpy);
1606         _tdm_vblank_timeout_timer_update(private_vblank, 1000);
1607         tdm_display_unlock(private_vblank->dpy);
1608
1609         return TDM_ERROR_NONE;
1610 }
1611
1612 EXTERN tdm_error
1613 tdm_vblank_wait_seq(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1614                                         unsigned int sequence, tdm_vblank_handler func, void *user_data)
1615 {
1616         tdm_private_vblank *private_vblank = vblank;
1617         unsigned int interval;
1618
1619         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1620         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1621
1622         /* if the sequence of vblank reaches the max value, sequence can be 0. */
1623
1624         if (private_vblank->last_seq == 0) {
1625                 VWR("can't calculate interval with sequence(%u)", sequence);
1626                 interval = 1;
1627         } else if (sequence > private_vblank->last_seq ||
1628                            TDM_VBLANK_SEQ_REACHED_MAX(sequence, private_vblank->last_seq)) {
1629                 double last, curr, seq_target;
1630
1631                 last = private_vblank->last_time;
1632                 curr = tdm_helper_get_time();
1633                 seq_target = last + private_vblank->vblank_gap * (sequence - private_vblank->last_seq);
1634
1635                 /* If target is old or too close(1ms) to current, we call the handler immediately.
1636                  * 2ms? it seems too much.
1637                  */
1638                 if (seq_target < curr) {
1639                         func(vblank, TDM_ERROR_NONE, sequence,
1640                                  TDM_TIME_SEC(seq_target), TDM_TIME_USEC(seq_target),
1641                                  user_data);
1642                         return TDM_ERROR_NONE;
1643                 } else if ((seq_target - curr) < 0.001) {  /* 1ms */
1644                         func(vblank, TDM_ERROR_NONE, sequence,
1645                                  TDM_TIME_SEC(curr), TDM_TIME_USEC(curr),
1646                                  user_data);
1647                         return TDM_ERROR_NONE;
1648                 }
1649
1650                 interval = (unsigned int)((seq_target - curr) / private_vblank->vblank_gap + TDM_TIME_MARGIN) + 1;
1651         } else {
1652                 /* this seems error. But we handle this like normal to avoid the unexpected error in cliend side */
1653                 VER("sequence(%u) should be over the last sequence(%u)", sequence, private_vblank->last_seq);
1654                 func(vblank, TDM_ERROR_NONE, private_vblank->last_seq,
1655                          TDM_TIME_SEC(private_vblank->last_time), TDM_TIME_USEC(private_vblank->last_time),
1656                          user_data);
1657                 return TDM_ERROR_NONE;
1658         }
1659
1660         return tdm_vblank_wait(vblank, req_sec, req_usec, interval, func, user_data);
1661 }
1662
1663 /* LCOV_EXCL_START */
1664 INTERN tdm_error
1665 tdm_vblank_set_add_front(tdm_vblank *vblank, unsigned int add_front)
1666 {
1667         tdm_private_vblank *private_vblank = vblank;
1668
1669         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1670
1671         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
1672
1673         if (private_vblank->add_front == add_front)
1674                 return TDM_ERROR_NONE;
1675
1676         private_vblank->add_front = add_front;
1677
1678         return TDM_ERROR_NONE;
1679 }
1680 /* LCOV_EXCL_STOP */
1681
1682 INTERN tdm_error
1683 tdm_vblank_set_resource(tdm_vblank *vblank, struct wl_resource *resource)
1684 {
1685         tdm_private_vblank *private_vblank = vblank;
1686
1687         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1688         TDM_RETURN_VAL_IF_FAIL(private_vblank->resource == NULL, TDM_ERROR_OPERATION_FAILED);
1689
1690         private_vblank->resource = resource;
1691
1692         return TDM_ERROR_NONE;
1693 }
1694
1695 INTERN double
1696 tdm_vblank_get_stamp(tdm_vblank *vblank)
1697 {
1698         tdm_private_vblank *private_vblank = vblank;
1699
1700         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1701
1702         return private_vblank->stamp;
1703 }
1704
1705 static unsigned int
1706 _tdm_vblank_get_waiting_count(tdm_private_vblank *private_vblank)
1707 {
1708         tdm_vblank_wait_info *wait_info = NULL;
1709         unsigned int count = 0;
1710
1711         LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->HW_wait_list, link) {
1712                 count++;
1713         }
1714
1715         LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->SW_wait_list, link) {
1716                 count++;
1717         }
1718
1719         return count;
1720 }
1721
1722 static void
1723 _tdm_vblank_get_client_information(tdm_private_vblank *private_vblank, pid_t *pid, const char **name)
1724 {
1725         struct wl_client *client;
1726
1727         if (!private_vblank->resource)
1728                 goto no_client;
1729
1730         client = wl_resource_get_client(private_vblank->resource);
1731         if (!client)
1732                 goto no_client;
1733
1734         wl_client_get_credentials(client, pid, NULL, NULL);
1735         *name = tdm_server_get_client_name(*pid);
1736
1737         return;
1738
1739 no_client:
1740         *pid = 0;
1741         *name = NULL;
1742         return;
1743 }
1744
1745 /* LCOV_EXCL_START */
1746 INTERN void
1747 tdm_vblank_get_vblank_list_information(tdm_display *dpy, char *reply, int *len)
1748 {
1749         tdm_private_vblank *v = NULL;
1750         tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1751         tdm_output *output = tdm_display_get_output(dpy, 0, NULL);
1752
1753         if (output)
1754                 tdm_output_get_dpms(output, &dpms);
1755
1756         TDM_SNPRINTF(reply, len, "[Client Vblank List]\n");
1757         TDM_SNPRINTF(reply, len, "* DPMS: %s\n", tdm_dpms_str(dpms));
1758         TDM_SNPRINTF(reply, len, "* global fps: %u\n", vblank_global_fps);
1759         TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1760         TDM_SNPRINTF(reply, len, "Name                 Type Wait Interval Sequence Fps Ignore Offset Fake Process\n");
1761         TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1762
1763         pthread_mutex_lock(&valid_list_lock);
1764         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
1765                 const char *proc_name = NULL;
1766                 pid_t pid = 0;
1767                 unsigned int count;
1768
1769                 _tdm_vblank_get_client_information(v, &pid, &proc_name);
1770
1771                 count = _tdm_vblank_get_waiting_count(v);
1772
1773                 TDM_SNPRINTF(reply, len, "%-8s(%p) ", v->name, v);
1774                 TDM_SNPRINTF(reply, len, "%-4s ", (v->last_type == VBLANK_EVENT_TYPE_HW) ? "HW" : "SW");
1775                 TDM_SNPRINTF(reply, len, "%-4s ", (count > 0) ? "O" : " ");
1776                 TDM_SNPRINTF(reply, len, "%-8d ", v->last_interval);
1777                 TDM_SNPRINTF(reply, len, "%-8u ", v->last_seq);
1778                 TDM_SNPRINTF(reply, len, "%-3u ", v->fps);
1779                 TDM_SNPRINTF(reply, len, "%-6u ", v->ignore_global_fps);
1780                 TDM_SNPRINTF(reply, len, "%-6d ", v->offset);
1781                 TDM_SNPRINTF(reply, len, "%-4u ", v->enable_fake);
1782                 TDM_SNPRINTF(reply, len, "%s(pid:%d)\n", (proc_name) ? proc_name : "Unknown", pid);
1783         }
1784         pthread_mutex_unlock(&valid_list_lock);
1785
1786         TDM_SNPRINTF(reply, len, "\n");
1787 }
1788 /* LCOV_EXCL_STOP */
1789