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 and valid_wait_list should be protected by valid_list_lock because
 162  * tdm_vblank can be used in multi-thread.
 163  */
 164 static pthread_mutex_t valid_list_lock;
 165 static struct list_head valid_vblank_list;
 166 static struct list_head valid_wait_list;
 167 static struct list_head create_handler_list;
 168 static unsigned int vblank_list_inited;
 169 static unsigned int vblank_global_fps;
 170 static double stamp = 0;
 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         /* use in_create_handler instead of mutext unlock/lock */
 580         private_vblank->in_create_handler = 1;
 581         ch_info->func(private_vblank, ch_info->user_data);
 582         private_vblank->in_create_handler = 0;
 583 }
 584
 585 static tdm_error
 586 _tdm_vblank_call_thread_cb(tdm_private_vblank *private_vblank)
 587 {
 588         tdm_thread_cb_vblank_create vblank_create;
 589         tdm_error ret;
 590
 591         memset(&vblank_create, 0, sizeof vblank_create);
 592         vblank_create.base.type = TDM_THREAD_CB_VBLANK_CREATE;
 593         vblank_create.base.length = sizeof vblank_create;
 594         vblank_create.base.object_stamp = 1;
 595         vblank_create.base.data = NULL;
 596         vblank_create.base.sync = 0;
 597         vblank_create.vblank_stamp = private_vblank->stamp;
 598
 599         ret = tdm_thread_cb_call(private_vblank->dpy, &vblank_create.base);
 600         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 601
 602         return TDM_ERROR_NONE;
 603 }
 604
 605 EXTERN tdm_error
 606 tdm_vblank_add_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
 607 {
 608         tdm_vblank_create_handler_info *ch_info = NULL;
 609         tdm_error ret;
 610
 611         TDM_RETURN_VAL_IF_FAIL(!TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
 612         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 613
 614         LIST_FOR_EACH_ENTRY(ch_info, &create_handler_list, link) {
 615                 if (ch_info->func == func && ch_info->user_data == user_data) {
 616                         TDM_ERR("can't be added twice");
 617                         return TDM_ERROR_BAD_REQUEST;
 618                 }
 619         }
 620
 621         ch_info = calloc(1, sizeof *ch_info);
 622         TDM_RETURN_VAL_IF_FAIL(ch_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
 623
 624         tdm_display_lock(dpy);
 625         ret = tdm_thread_cb_add(dpy, TDM_THREAD_CB_VBLANK_CREATE, NULL, _tdm_vblank_thread_cb_create, ch_info);
 626         tdm_display_unlock(dpy);
 627
 628         if (ret != TDM_ERROR_NONE) {
 629                 TDM_ERR("tdm_thread_cb_add failed");
 630                 free(ch_info);
 631                 return ret;
 632         }
 633
 634         ch_info->func = func;
 635         ch_info->user_data = user_data;
 636
 637         LIST_ADDTAIL(&ch_info->link, &create_handler_list);
 638         return TDM_ERROR_NONE;
 639 }
 640
 641 EXTERN void
 642 tdm_vblank_remove_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
 643 {
 644         tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
 645
 646         TDM_RETURN_IF_FAIL(!TDM_MUTEX_IS_LOCKED());
 647
 648         /* we don't allow adding a create handler in sub-thread because tdm_vblank_create()
 649          * can be called in both threads and tdm_thread_send_cb supports only one-way
 650          * communication now.
 651          */
 652         if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
 653                 TDM_ERR("remove_create_handler should be called in main thread");
 654                 return;
 655         }
 656
 657         tdm_display_lock(dpy);
 658
 659         LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
 660                 if (ch_info->func != func && ch_info->user_data != user_data)
 661                         continue;
 662
 663                 tdm_thread_cb_remove(dpy, TDM_THREAD_CB_VBLANK_CREATE, NULL, _tdm_vblank_thread_cb_create, ch_info);
 664
 665                 LIST_DEL(&ch_info->link);
 666                 free(ch_info);
 667                 tdm_display_unlock(dpy);
 668                 return;
 669         }
 670
 671         tdm_display_unlock(dpy);
 672 }
 673
 674 static void*
 675 _tdm_vblank_find_display(tdm_private_display *private_display, double stamp)
 676 {
 677         return private_display;
 678 }
 679
 680 INTERN tdm_error
 681 tdm_vblank_init(tdm_display *dpy)
 682 {
 683         if (vblank_list_inited)
 684                 return TDM_ERROR_NONE;
 685
 686         if (pthread_mutex_init(&valid_list_lock, NULL)) {
 687                 TDM_ERR("mutex init failed: %m");
 688                 return TDM_ERROR_OUT_OF_MEMORY;
 689         }
 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         pthread_mutex_destroy(&valid_list_lock);
 723
 724         vblank_list_inited = 0;
 725 }
 726
 727 EXTERN tdm_vblank *
 728 tdm_vblank_create(tdm_display *dpy, tdm_output *output, tdm_error *error)
 729 {
 730         tdm_private_vblank *private_vblank;
 731         tdm_error ret;
 732
 733         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_display_is_valid(dpy), TDM_ERROR_INVALID_PARAMETER, NULL);
 734         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_output_is_valid(output), TDM_ERROR_INVALID_PARAMETER, NULL);
 735
 736         if (error)
 737                 *error = TDM_ERROR_NONE;
 738
 739         private_vblank = calloc(1, sizeof * private_vblank);
 740         if (!private_vblank) {
 741                 /* LCOV_EXCL_START */
 742                 if (error)
 743                         *error = TDM_ERROR_OUT_OF_MEMORY;
 744                 TDM_ERR("alloc failed");
 745                 return NULL;
 746                 /* LCOV_EXCL_STOP */
 747         }
 748
 749         tdm_output_add_change_handler(output, _tdm_vblank_cb_output_change, private_vblank);
 750
 751         private_vblank->stamp = ++stamp;
 752         private_vblank->owner_tid = syscall(SYS_gettid);
 753         private_vblank->dpy = dpy;
 754         private_vblank->output = output;
 755         private_vblank->check_HW_or_SW = 1;
 756         private_vblank->fps_changeable = 1;
 757         private_vblank->last_interval = -1;
 758
 759         _tdm_vblank_update_output_info(private_vblank);
 760
 761         strncpy(private_vblank->name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN - 1);
 762         private_vblank->name[TDM_NAME_LEN - 1] = '\0';
 763
 764         LIST_INITHEAD(&private_vblank->HW_wait_list);
 765         LIST_INITHEAD(&private_vblank->SW_wait_list);
 766
 767         _tdm_vblank_valid_list_add(&private_vblank->valid_link, &valid_vblank_list);
 768
 769         VIN("created. vrefresh(%d) connection(%d)",
 770                 private_vblank->vrefresh, private_vblank->connection);
 771
 772         tdm_display_lock(private_vblank->dpy);
 773         _tdm_vblank_call_thread_cb(private_vblank);
 774         tdm_display_unlock(private_vblank->dpy);
 775
 776         return (tdm_vblank *)private_vblank;
 777 }
 778
 779 EXTERN void
 780 tdm_vblank_destroy(tdm_vblank *vblank)
 781 {
 782         tdm_private_vblank *private_vblank = vblank;
 783         tdm_vblank_wait_info *w = NULL, *ww = NULL;
 784
 785         TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(vblank));
 786
 787         if (private_vblank->in_create_handler) {
 788                 TDM_ERR("NOT allowed to be called in a create handler");
 789                 return;
 790         }
 791
 792         _tdm_vblank_valid_list_del(&private_vblank->valid_link);
 793
 794         if (private_vblank->SW_timer) {
 795                 tdm_display_lock(private_vblank->dpy);
 796                 tdm_thread_cb_remove(private_vblank, TDM_THREAD_CB_VBLANK_SW, NULL, _tdm_vblank_cb_vblank_SW, NULL);
 797                 tdm_event_loop_source_remove(private_vblank->SW_timer);
 798                 tdm_display_unlock(private_vblank->dpy);
 799         }
 800
 801         tdm_output_remove_change_handler(private_vblank->output,
 802                                                                          _tdm_vblank_cb_output_change, private_vblank);
 803
 804         _tdm_vblank_free_HW_wait(private_vblank, 0, 0);
 805
 806         if (!LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
 807                 pid_t pid;
 808                 const char *proc_name;
 809                 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
 810                 VER("TDM SW vblank destroyed forcely!! (pid: %u, name: %s)", pid, proc_name);
 811         }
 812
 813         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
 814                 LIST_DEL(&w->link);
 815                 _tdm_vblank_valid_list_del(&w->valid_link);
 816                 free(w);
 817         }
 818
 819         if (private_vblank->timeout_timer) {
 820                 tdm_display_lock(private_vblank->dpy);
 821                 tdm_event_loop_source_remove(private_vblank->timeout_timer);
 822                 tdm_display_unlock(private_vblank->dpy);
 823         }
 824
 825         VIN("destroyed");
 826
 827         free(private_vblank);
 828 }
 829
 830 EXTERN tdm_output *
 831 tdm_vblank_get_output(tdm_vblank *vblank, tdm_error *error)
 832 {
 833         tdm_private_vblank *private_vblank = vblank;
 834         tdm_error ret = TDM_ERROR_NONE;
 835
 836         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER, NULL);
 837
 838         if (error)
 839                 *error = TDM_ERROR_NONE;
 840
 841         return private_vblank->output;
 842 }
 843
 844 EXTERN tdm_error
 845 tdm_vblank_get_client_pid(tdm_vblank *vblank, pid_t *pid)
 846 {
 847         tdm_private_vblank *private_vblank = vblank;
 848         struct wl_client *client;
 849
 850         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 851         TDM_RETURN_VAL_IF_FAIL(pid != NULL, TDM_ERROR_INVALID_PARAMETER);
 852
 853         if (!private_vblank->resource) {
 854                 *pid = 0;
 855                 return TDM_ERROR_NONE;
 856         }
 857
 858         client = wl_resource_get_client(private_vblank->resource);
 859         if (!client) {
 860                 *pid = 0;
 861                 return TDM_ERROR_NONE;
 862         }
 863
 864         wl_client_get_credentials(client, pid, NULL, NULL);
 865
 866         return TDM_ERROR_NONE;
 867 }
 868
 869 EXTERN tdm_error
 870 tdm_vblank_set_name(tdm_vblank *vblank, const char *name)
 871 {
 872         tdm_private_vblank *private_vblank = vblank;
 873
 874         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 875
 876         if (!name)
 877                 name = TDM_VBLANK_DEFAULT_NAME;
 878
 879         strncpy(private_vblank->name, name, TDM_NAME_LEN - 1);
 880         private_vblank->name[TDM_NAME_LEN - 1] = '\0';
 881
 882         VIN("name(%s)", name);
 883
 884         return TDM_ERROR_NONE;
 885 }
 886
 887 EXTERN tdm_error
 888 tdm_vblank_get_name(tdm_vblank *vblank, const char **name)
 889 {
 890         tdm_private_vblank *private_vblank = vblank;
 891
 892         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 893         TDM_RETURN_VAL_IF_FAIL(name != NULL, TDM_ERROR_INVALID_PARAMETER);
 894
 895         *name = (const char*)private_vblank->name;
 896
 897         return TDM_ERROR_NONE;
 898 }
 899
 900 EXTERN tdm_error
 901 tdm_vblank_set_fps(tdm_vblank *vblank, unsigned int fps)
 902 {
 903         tdm_private_vblank *private_vblank = vblank;
 904
 905         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 906         TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 907
 908         if (private_vblank->fps_fixed) {
 909                 VIN("fps(%d) can't be changed", private_vblank->fps);
 910                 return TDM_ERROR_NONE;
 911         }
 912
 913         private_vblank->fps_changeable = 0;
 914
 915         if (private_vblank->fps == fps)
 916                 return TDM_ERROR_NONE;
 917
 918         private_vblank->fps = fps;
 919         private_vblank->check_HW_or_SW = 1;
 920
 921         VIN("fps(%d) changed", fps);
 922
 923         return TDM_ERROR_NONE;
 924 }
 925
 926 EXTERN tdm_error
 927 tdm_vblank_get_fps(tdm_vblank *vblank, unsigned int *fps)
 928 {
 929         tdm_private_vblank *private_vblank = vblank;
 930
 931         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 932         TDM_RETURN_VAL_IF_FAIL(fps != NULL, TDM_ERROR_INVALID_PARAMETER);
 933
 934         *fps = private_vblank->fps;
 935
 936         return TDM_ERROR_NONE;
 937 }
 938
 939 EXTERN tdm_error
 940 tdm_vblank_set_fixed_fps(tdm_vblank *vblank, unsigned int fps)
 941 {
 942         tdm_private_vblank *private_vblank = vblank;
 943
 944         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 945         TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 946
 947         private_vblank->fps_changeable = 0;
 948         private_vblank->fps_fixed = 1;
 949
 950         if (private_vblank->fps == fps)
 951                 return TDM_ERROR_NONE;
 952
 953         private_vblank->fps = fps;
 954         private_vblank->check_HW_or_SW = 1;
 955
 956         VIN("fps(%d) fixed", fps);
 957
 958         return TDM_ERROR_NONE;
 959 }
 960
 961 EXTERN tdm_error
 962 tdm_vblank_ignore_global_fps(tdm_vblank *vblank, unsigned int ignore)
 963 {
 964         tdm_private_vblank *private_vblank = vblank;
 965
 966         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 967
 968         if (private_vblank->ignore_global_fps == ignore)
 969                 return TDM_ERROR_NONE;
 970
 971         private_vblank->ignore_global_fps = ignore;
 972         private_vblank->check_HW_or_SW = 1;
 973
 974         VIN("ignore_global_fps(%d)", private_vblank->ignore_global_fps);
 975
 976         return TDM_ERROR_NONE;
 977 }
 978
 979 EXTERN tdm_error
 980 tdm_vblank_set_offset(tdm_vblank *vblank, int offset)
 981 {
 982         tdm_private_vblank *private_vblank = vblank;
 983
 984         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 985
 986         if (private_vblank->offset == offset)
 987                 return TDM_ERROR_NONE;
 988
 989         private_vblank->offset = offset;
 990         private_vblank->check_HW_or_SW = 1;
 991
 992         VIN("offset(%d)", private_vblank->offset);
 993
 994         return TDM_ERROR_NONE;
 995 }
 996
 997 EXTERN tdm_error
 998 tdm_vblank_get_offset(tdm_vblank *vblank, int *offset)
 999 {
1000         tdm_private_vblank *private_vblank = vblank;
1001
1002         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1003         TDM_RETURN_VAL_IF_FAIL(offset != NULL, TDM_ERROR_INVALID_PARAMETER);
1004
1005         *offset = private_vblank->offset;
1006
1007         return TDM_ERROR_NONE;
1008 }
1009
1010 EXTERN tdm_error
1011 tdm_vblank_set_enable_fake(tdm_vblank *vblank, unsigned int enable_fake)
1012 {
1013         tdm_private_vblank *private_vblank = vblank;
1014
1015         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1016
1017         if (private_vblank->enable_fake == enable_fake)
1018                 return TDM_ERROR_NONE;
1019
1020         private_vblank->enable_fake = enable_fake;
1021
1022         VIN("enable_fake(%d)", private_vblank->enable_fake);
1023
1024         return TDM_ERROR_NONE;
1025 }
1026
1027 EXTERN tdm_error
1028 tdm_vblank_get_enable_fake(tdm_vblank *vblank, unsigned int *enable_fake)
1029 {
1030         tdm_private_vblank *private_vblank = vblank;
1031
1032         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1033         TDM_RETURN_VAL_IF_FAIL(enable_fake != NULL, TDM_ERROR_INVALID_PARAMETER);
1034
1035         *enable_fake = private_vblank->enable_fake;
1036
1037         return TDM_ERROR_NONE;
1038 }
1039
1040 static tdm_error
1041 _tdm_vblank_timeout_timer_cb(void *user_data)
1042 {
1043         tdm_private_vblank *private_vblank = user_data;
1044         tdm_vblank_wait_info *w = NULL;
1045         pid_t pid;
1046         const char *proc_name;
1047
1048         TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_OPERATION_FAILED);
1049
1050         _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
1051
1052         VER("TDM vblank TIMEOUT!! (pid: %u, name: %s)", pid, proc_name);
1053         VER("quotient(%u) last_seq(%u) last_time(%.6f)", private_vblank->quotient, private_vblank->last_seq, private_vblank->last_time);
1054
1055         LIST_FOR_EACH_ENTRY(w, &private_vblank->HW_wait_list, link) {
1056                 VER("wait_info(%p) req_time(%.6f) target_seq(%u) interval(%u) hw_interval(%d)",
1057                         w, w->req_time, w->target_seq, w->interval, w->hw_interval);
1058                 tdm_output_vblank_print_wait_information(private_vblank->output, w);
1059         }
1060
1061         LIST_FOR_EACH_ENTRY(w, &private_vblank->SW_wait_list, link) {
1062                 VER("wait_info(%p) req_time(%.6f) target_time(%.6f) target_seq(%u) interval(%u)",
1063                         w, w->req_time, w->target_time, w->target_seq, w->interval);
1064         }
1065
1066         return TDM_ERROR_NONE;
1067 }
1068
1069 static void
1070 _tdm_vblank_timeout_timer_update(tdm_private_vblank *private_vblank, int ms_delay)
1071 {
1072         tdm_error ret;
1073
1074         if (!private_vblank->timeout_timer) {
1075                 private_vblank->timeout_timer =
1076                         tdm_event_loop_add_timer_handler(private_vblank->dpy,
1077                                                                                          _tdm_vblank_timeout_timer_cb,
1078                                                                                          private_vblank,
1079                                                                                          &ret);
1080                 if (!private_vblank->timeout_timer) {
1081                         VER("couldn't add timer");
1082                         return;
1083                 }
1084                 VIN("Create Timeout timer");
1085         }
1086
1087         ret = tdm_event_loop_source_timer_update(private_vblank->timeout_timer, ms_delay);
1088         if (ret != TDM_ERROR_NONE) {
1089                 VER("couldn't update timer");
1090                 return;
1091         }
1092
1093         if (ms_delay != 0)
1094                 VDB("timeout timer updated");
1095         else
1096                 VDB("timeout timer disabled");
1097 }
1098
1099 static tdm_error
1100 _tdm_vblank_sw_timer_update(tdm_private_vblank *private_vblank)
1101 {
1102         tdm_vblank_wait_info *first_wait_info = NULL;
1103         double curr, target;
1104         int ms_delay;
1105         tdm_error ret;
1106
1107         if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1108                 VER("no wait_info");
1109                 return TDM_ERROR_OPERATION_FAILED;
1110         }
1111
1112         first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1113         curr = tdm_helper_get_time();
1114         target = first_wait_info->target_time;
1115
1116         /* ms_delay should be more that 1 */
1117         if (target < curr)
1118                 ms_delay = 1;
1119         else
1120                 ms_delay = ceil((target - curr) * 1000.0);
1121
1122         if (ms_delay < 1)
1123                 ms_delay = 1;
1124
1125         if (ms_delay > 5000)
1126                 VER("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1127         else
1128                 VDB("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1129
1130         tdm_display_lock(private_vblank->dpy);
1131
1132         if (!private_vblank->SW_timer) {
1133                 private_vblank->SW_timer =
1134                         tdm_event_loop_add_timer_handler(private_vblank->dpy,
1135                                                                                          _tdm_vblank_cb_timeout_SW,
1136                                                                                          private_vblank,
1137                                                                                          &ret);
1138                 if (!private_vblank->SW_timer) {
1139                         tdm_display_unlock(private_vblank->dpy);
1140                         VER("couldn't add timer");
1141                         return ret;
1142                 }
1143
1144                 ret = tdm_thread_cb_add(private_vblank, TDM_THREAD_CB_VBLANK_SW, NULL, _tdm_vblank_cb_vblank_SW, NULL);
1145                 if (ret != TDM_ERROR_NONE) {
1146                         tdm_event_loop_source_remove(private_vblank->SW_timer);
1147                         private_vblank->SW_timer = NULL;
1148                         tdm_display_unlock(private_vblank->dpy);
1149                         VER("couldn't add thread_cb");
1150                         return ret;
1151                 }
1152
1153                 VIN("Create SW timer");
1154         }
1155
1156         private_vblank->last_interval = ms_delay;
1157
1158         ret = tdm_event_loop_source_timer_update(private_vblank->SW_timer, ms_delay);
1159         if (ret != TDM_ERROR_NONE) {
1160                 /* LCOV_EXCL_START */
1161                 tdm_display_unlock(private_vblank->dpy);
1162                 VER("couldn't update timer");
1163                 return ret;
1164                 /* LCOV_EXCL_STOP */
1165         }
1166
1167         tdm_display_unlock(private_vblank->dpy);
1168
1169         return TDM_ERROR_NONE;
1170 }
1171
1172 static void
1173 _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
1174                                                  unsigned int tv_sec, unsigned int tv_usec,
1175                                                  void *user_data)
1176 {
1177         tdm_vblank_wait_info *wait_info = user_data;
1178         tdm_private_vblank *private_vblank;
1179
1180         if (!_tdm_vblank_check_valid_wait(wait_info)) {
1181                 TDM_ERR("can't find wait(%p) from valid_wait_list", wait_info);
1182                 return;
1183         }
1184
1185         private_vblank = wait_info->private_vblank;
1186         TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
1187
1188         assert(private_vblank->owner_tid == syscall(SYS_gettid));
1189
1190         if (!_tdm_vblank_find_wait(wait_info, &private_vblank->HW_wait_list)) {
1191                 VER("can't find wait(%p)", wait_info);
1192                 return;
1193         }
1194
1195         if (wait_info->type == VBLANK_TYPE_HW_SW) {
1196                 tdm_error ret;
1197
1198                 LIST_DEL(&wait_info->link);
1199
1200                 /* kernel sends the wrong time of first vblank event. and the time of
1201                  * second vblank is correct.
1202                  */
1203                 wait_info->target_time = TDM_TIME(tv_sec, tv_usec);
1204                 wait_info->target_time += (((double)private_vblank->offset) / 1000.0);
1205
1206                 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1207
1208                 ret = _tdm_vblank_sw_timer_update(private_vblank);
1209
1210                 /* wait_info will be freed in _tdm_vblank_cb_timeout_SW() */
1211                 if (ret == TDM_ERROR_NONE) {
1212                         VIN("wait(%p) SW timer", wait_info);
1213                         return;
1214                 }
1215
1216                 VER("couldn't update sw timer");
1217         }
1218
1219         tdm_display_lock(private_vblank->dpy);
1220         _tdm_vblank_timeout_timer_update(private_vblank, 0);
1221         tdm_display_unlock(private_vblank->dpy);
1222
1223         LIST_DEL(&wait_info->link);
1224         _tdm_vblank_valid_list_del(&wait_info->valid_link);
1225
1226         /* tv_sec & tv_usec shouldn't be zero. But sometimes they are zero in some hardware.
1227          * We need to prohibit that last_time becomes zero because "last_time == 0" means
1228          * that a tdm_vblank object is just created and doesn't have the first vblank event.
1229          * If last_time becomes 0, it would make issue.
1230          */
1231         if (tv_sec == 0 && tv_usec == 0) {
1232                 double curr = tdm_helper_get_time();
1233                 tv_sec = TDM_TIME_SEC(curr);
1234                 tv_usec = TDM_TIME_USEC(curr);
1235         }
1236
1237         private_vblank->last_seq = wait_info->target_seq;
1238         private_vblank->last_time = TDM_TIME(tv_sec, tv_usec);
1239
1240         VDB("wait(%p) last(%.6f) sequence(%u) done", wait_info, private_vblank->last_time, wait_info->target_seq);
1241
1242         if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1243                 TDM_TRACE_ASYNC_END((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1244
1245         if (wait_info->func)
1246                 wait_info->func(private_vblank, TDM_ERROR_NONE, wait_info->target_seq,
1247                                                 tv_sec, tv_usec, wait_info->user_data);
1248
1249         free(wait_info);
1250 }
1251
1252 static tdm_error
1253 _tdm_vblank_wait_HW(tdm_vblank_wait_info *wait_info)
1254 {
1255         tdm_private_vblank *private_vblank = wait_info->private_vblank;
1256         int hw_interval;
1257         tdm_error ret;
1258
1259         if (private_vblank->last_type != VBLANK_EVENT_TYPE_HW) {
1260                 VIN("Use HW vblank");
1261                 private_vblank->last_type = VBLANK_EVENT_TYPE_HW;
1262         }
1263
1264         _tdm_vblank_insert_wait(wait_info, &private_vblank->HW_wait_list);
1265
1266         if (private_vblank->last_time == 0) {
1267                 hw_interval = wait_info->interval * private_vblank->quotient;
1268
1269                 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1270                 private_vblank->last_seq = 0;
1271                 private_vblank->last_time = tdm_helper_get_time();
1272
1273                 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1274                 wait_info->target_seq = 1;
1275
1276                 VDB("wait(%p) last(%.6f) hw_itvl(%d) targ_seq(%u)",
1277                         wait_info, private_vblank->last_time, hw_interval, wait_info->target_seq);
1278         } else {
1279                 double last, prev, req, curr, target;
1280                 unsigned int skip;
1281
1282                 last = private_vblank->last_time;
1283                 req = wait_info->req_time;
1284
1285                 /* make sure that req time is bigger than last. */
1286                 if (req < last)
1287                         req = last;
1288
1289                 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1290                 prev = last + private_vblank->vblank_gap * skip;
1291
1292                 curr = tdm_helper_get_time();
1293                 target = last;
1294                 while (target < curr)
1295                         target += (private_vblank->vblank_gap * wait_info->interval);
1296
1297                 hw_interval = (unsigned int)((target - curr) / private_vblank->HW_vblank_gap + TDM_TIME_MARGIN) + 1;
1298
1299                 wait_info->target_seq = private_vblank->last_seq;
1300                 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1301
1302                 if (hw_interval > 300)
1303                         VER("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1304                                 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1305                                 skip, hw_interval, wait_info->target_seq);
1306                 else
1307                         VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1308                                 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1309                                 skip, hw_interval, wait_info->target_seq);
1310         }
1311
1312         private_vblank->last_interval = hw_interval;
1313         wait_info->hw_interval = hw_interval;
1314
1315         if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1316                 TDM_TRACE_ASYNC_BEGIN((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1317
1318         if (private_vblank->add_front)
1319                 ret = tdm_output_wait_vblank_add_front(private_vblank->output, hw_interval, 0,
1320                                                                                            _tdm_vblank_cb_vblank_HW, wait_info);
1321         else
1322                 ret = tdm_output_wait_vblank(private_vblank->output, hw_interval, 0,
1323                                                                          _tdm_vblank_cb_vblank_HW, wait_info);
1324
1325         if (ret != TDM_ERROR_NONE) {
1326                 LIST_DEL(&wait_info->link);
1327                 return ret;
1328         }
1329
1330         VDB("wait(%p) waiting", wait_info);
1331
1332         return TDM_ERROR_NONE;
1333 }
1334
1335 static void
1336 _tdm_vblank_cb_vblank_SW(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data)
1337 {
1338         tdm_private_vblank *private_vblank = object;
1339         tdm_vblank_wait_info *first_wait_info = NULL, *w = NULL, *ww = NULL;
1340
1341         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
1342
1343         assert(private_vblank->owner_tid == syscall(SYS_gettid));
1344
1345         if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1346                 VER("no wait_info");
1347                 return;
1348         }
1349
1350         if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list))
1351                 TDM_NEVER_GET_HERE();
1352
1353         first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1354         TDM_RETURN_IF_FAIL(first_wait_info != NULL);
1355
1356         _tdm_vblank_timeout_timer_update(private_vblank, 0);
1357
1358         if (private_vblank->last_seq >= first_wait_info->target_seq)
1359                 TDM_ERR("last_seq(%u) target_seq(%u)", private_vblank->last_seq, first_wait_info->target_seq);
1360
1361         private_vblank->last_seq = first_wait_info->target_seq;
1362         private_vblank->last_time = first_wait_info->target_time;
1363
1364         VDB("wait(%p) last(%.6f) sequence(%u) done", first_wait_info, private_vblank->last_time, first_wait_info->target_seq);
1365
1366         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
1367                 if (w->target_time != first_wait_info->target_time)
1368                         break;
1369
1370                 LIST_DEL(&w->link);
1371                 _tdm_vblank_valid_list_del(&w->valid_link);
1372
1373                 if (w->func) {
1374                         tdm_display_unlock(private_vblank->dpy);
1375                         w->func(private_vblank, TDM_ERROR_NONE, w->target_seq,
1376                                         TDM_TIME_SEC(w->target_time), TDM_TIME_USEC(w->target_time),
1377                                         w->user_data);
1378                         tdm_display_lock(private_vblank->dpy);
1379                 }
1380
1381                 free(w);
1382         }
1383 }
1384
1385 static tdm_error
1386 _tdm_vblank_cb_timeout_SW(void *user_data)
1387 {
1388         tdm_private_vblank *private_vblank = user_data;
1389         tdm_thread_cb_vblank_sw vblank_sw;
1390         tdm_error ret;
1391
1392         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(private_vblank), TDM_ERROR_OPERATION_FAILED);
1393
1394         VIN("timeout_SW -> thread-cb");
1395
1396         memset(&vblank_sw, 0, sizeof vblank_sw);
1397         vblank_sw.base.type = TDM_THREAD_CB_VBLANK_SW;
1398         vblank_sw.base.length = sizeof vblank_sw;
1399         vblank_sw.base.object_stamp = private_vblank->stamp;
1400         vblank_sw.base.data = NULL;
1401         vblank_sw.base.sync = 0;
1402
1403         ret = tdm_thread_cb_call(private_vblank, &vblank_sw.base);
1404         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
1405
1406         return TDM_ERROR_NONE;
1407 }
1408
1409 static tdm_error
1410 _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info)
1411 {
1412         tdm_private_vblank *private_vblank = wait_info->private_vblank;
1413         tdm_error ret;
1414
1415         if (private_vblank->last_type != VBLANK_EVENT_TYPE_SW) {
1416                 VIN("Use SW vblank");
1417                 private_vblank->last_type = VBLANK_EVENT_TYPE_SW;
1418         }
1419
1420         if (private_vblank->last_time == 0) {
1421                 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1422                 private_vblank->last_seq = 0;
1423                 private_vblank->last_time = tdm_helper_get_time();
1424
1425                 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1426                 wait_info->target_seq = 1;
1427                 wait_info->target_time = private_vblank->last_time + 0.001;
1428
1429                 VDB("wait(%p) last(%.6f) target(%.6f) target sequence(%u)",
1430                         wait_info, private_vblank->last_time, wait_info->target_time, wait_info->target_seq);
1431         } else {
1432                 double last, prev, req, curr, target;
1433                 unsigned int skip;
1434
1435                 last = private_vblank->last_time;
1436                 req = wait_info->req_time;
1437
1438                 /* make sure that req time is bigger than last. */
1439                 if (req < last)
1440                         req = last;
1441
1442                 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1443                 prev = last + private_vblank->vblank_gap * skip;
1444
1445                 curr = tdm_helper_get_time();
1446                 target = prev + private_vblank->vblank_gap * wait_info->interval;
1447
1448                 while (target < curr)
1449                         target += private_vblank->vblank_gap;
1450
1451                 wait_info->target_seq = private_vblank->last_seq;
1452                 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1453
1454                 wait_info->target_time = target;
1455
1456                 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) targ_seq(%u)",
1457                         wait_info, last, req - last, prev - last, curr - last,
1458                         target, target - last, skip, wait_info->target_seq);
1459         }
1460
1461         _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1462
1463         ret = _tdm_vblank_sw_timer_update(private_vblank);
1464         if (ret != TDM_ERROR_NONE) {
1465                 /* LCOV_EXCL_START */
1466                 LIST_DEL(&wait_info->link);
1467                 VER("couldn't update sw timer");
1468                 return ret;
1469                 /* LCOV_EXCL_STOP */
1470         }
1471
1472         return TDM_ERROR_NONE;
1473 }
1474
1475 EXTERN tdm_error
1476 tdm_vblank_wait(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1477                                 unsigned int interval, tdm_vblank_handler func, void *user_data)
1478 {
1479         tdm_private_vblank *private_vblank = vblank;
1480         tdm_vblank_wait_info *wait_info;
1481         tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1482         unsigned int fps;
1483         tdm_error ret;
1484
1485         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1486         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1487
1488         if (private_vblank->in_create_handler) {
1489                 TDM_ERR("NOT allowed to be called in a create handler");
1490                 return TDM_ERROR_BAD_REQUEST;
1491         }
1492
1493         if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1494                 TDM_ERR("SHOULD be called in the owner thread(%d)", (int)private_vblank->owner_tid);
1495                 return TDM_ERROR_BAD_REQUEST;
1496         }
1497
1498         tdm_output_get_dpms(private_vblank->output, &dpms);
1499
1500         if (!private_vblank->enable_fake) {
1501                 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
1502                         VER("can't wait a vblank: output disconnected");
1503                         return TDM_ERROR_OUTPUT_DISCONNECTED;
1504                 }
1505                 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms)) {
1506                         VER("can't wait a vblank: DPMS %s", tdm_dpms_str(dpms));
1507                         return TDM_ERROR_DPMS_OFF;
1508                 }
1509         }
1510
1511         wait_info = calloc(1, sizeof * wait_info);
1512         if (!wait_info) {
1513                 /* LCOV_EXCL_START */
1514                 VER("alloc failed");
1515                 return TDM_ERROR_OUT_OF_MEMORY;
1516                 /* LCOV_EXCL_STOP */
1517         }
1518         _tdm_vblank_update_output_info(private_vblank);
1519
1520         /* set request time to current time if 0. This function seems to be called in server side. */
1521         if (req_sec == 0 && req_usec == 0) {
1522                 double curr = tdm_helper_get_time();
1523                 req_sec = TDM_TIME_SEC(curr);
1524                 req_usec = TDM_TIME_USEC(curr);
1525         }
1526
1527         LIST_INITHEAD(&wait_info->link);
1528
1529         _tdm_vblank_valid_list_add(&wait_info->valid_link, &valid_wait_list);
1530
1531         wait_info->stamp = ++stamp;
1532         wait_info->req_time = TDM_TIME(req_sec, req_usec);
1533         wait_info->interval = interval;
1534         wait_info->func = func;
1535         wait_info->user_data = user_data;
1536         wait_info->private_vblank = private_vblank;
1537
1538         if (private_vblank->ignore_global_fps ||
1539                 vblank_global_fps == 0 ||
1540                 private_vblank->fps < vblank_global_fps)
1541                 fps = private_vblank->fps;
1542         else
1543                 fps = vblank_global_fps;
1544
1545         if (private_vblank->check_HW_or_SW) {
1546                 private_vblank->check_HW_or_SW = 0;
1547                 private_vblank->vblank_gap = 1.0 / fps;
1548                 private_vblank->quotient = private_vblank->vrefresh / fps;
1549         }
1550
1551         /* 1) if fps != factor of vrefresh, SW timer
1552          * 2) if fps == factor of vrefresh && dpms == off, SW timer (Fake HW vblank)
1553          * 2) if fps == factor of vrefresh && dpms == on && offset == 0, HW vblank
1554          * 3) if fps == factor of vrefresh && dpms == on && offset != 0, HW vblank + SW timer
1555          * In case of 1), we really don't need to align with HW vblank.
1556          */
1557         if (private_vblank->vrefresh % fps)
1558                 wait_info->type = VBLANK_TYPE_SW;
1559         else if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms) ||
1560                          private_vblank->connection != TDM_OUTPUT_CONN_STATUS_MODE_SETTED)
1561                 wait_info->type = VBLANK_TYPE_SW_FAKE;
1562         else if (private_vblank->offset == 0)
1563                 wait_info->type = VBLANK_TYPE_HW;
1564         else
1565                 wait_info->type = VBLANK_TYPE_HW_SW;
1566
1567         if (wait_info->type == VBLANK_TYPE_SW || wait_info->type == VBLANK_TYPE_SW_FAKE) {
1568                 ret = _tdm_vblank_wait_SW(wait_info);
1569                 if (ret != TDM_ERROR_NONE)
1570                         TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1571         } else {
1572                 ret = _tdm_vblank_wait_HW(wait_info);
1573                 if (ret != TDM_ERROR_NONE)
1574                         TDM_ERR("_tdm_vblank_wait_HW failed: ret(%d)", ret);
1575
1576                 if (ret == TDM_ERROR_OUTPUT_DISCONNECTED || ret == TDM_ERROR_DPMS_OFF) {
1577                         ret = _tdm_vblank_wait_SW(wait_info);
1578                         if (ret != TDM_ERROR_NONE)
1579                                 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1580                 }
1581         }
1582
1583         if (ret != TDM_ERROR_NONE) {
1584                 /* LCOV_EXCL_START */
1585                 LIST_DEL(&wait_info->link);
1586                 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1587
1588                 tdm_display_lock(private_vblank->dpy);
1589                 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, wait_info);
1590                 tdm_display_unlock(private_vblank->dpy);
1591
1592                 free(wait_info);
1593                 return ret;
1594                 /* LCOV_EXCL_STOP */
1595         }
1596
1597         tdm_display_lock(private_vblank->dpy);
1598         _tdm_vblank_timeout_timer_update(private_vblank, 1000);
1599         tdm_display_unlock(private_vblank->dpy);
1600
1601         return TDM_ERROR_NONE;
1602 }
1603
1604 EXTERN tdm_error
1605 tdm_vblank_wait_seq(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1606                                         unsigned int sequence, tdm_vblank_handler func, void *user_data)
1607 {
1608         tdm_private_vblank *private_vblank = vblank;
1609         unsigned int interval;
1610
1611         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1612         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1613
1614         /* if the sequence of vblank reaches the max value, sequence can be 0. */
1615
1616         if (private_vblank->last_seq == 0) {
1617                 VWR("can't calculate interval with sequence(%u)", sequence);
1618                 interval = 1;
1619         } else if (sequence > private_vblank->last_seq ||
1620                            TDM_VBLANK_SEQ_REACHED_MAX(sequence, private_vblank->last_seq)) {
1621                 double last, curr, seq_target;
1622
1623                 last = private_vblank->last_time;
1624                 curr = tdm_helper_get_time();
1625                 seq_target = last + private_vblank->vblank_gap * (sequence - private_vblank->last_seq);
1626
1627                 /* If target is old or too close(1ms) to current, we call the handler immediately.
1628                  * 2ms? it seems too much.
1629                  */
1630                 if (seq_target < curr) {
1631                         func(vblank, TDM_ERROR_NONE, sequence,
1632                                  TDM_TIME_SEC(seq_target), TDM_TIME_USEC(seq_target),
1633                                  user_data);
1634                         return TDM_ERROR_NONE;
1635                 } else if ((seq_target - curr) < 0.001) {  /* 1ms */
1636                         func(vblank, TDM_ERROR_NONE, sequence,
1637                                  TDM_TIME_SEC(curr), TDM_TIME_USEC(curr),
1638                                  user_data);
1639                         return TDM_ERROR_NONE;
1640                 }
1641
1642                 interval = (unsigned int)((seq_target - curr) / private_vblank->vblank_gap + TDM_TIME_MARGIN) + 1;
1643         } else {
1644                 /* this seems error. But we handle this like normal to avoid the unexpected error in cliend side */
1645                 VER("sequence(%u) should be over the last sequence(%u)", sequence, private_vblank->last_seq);
1646                 func(vblank, TDM_ERROR_NONE, private_vblank->last_seq,
1647                          TDM_TIME_SEC(private_vblank->last_time), TDM_TIME_USEC(private_vblank->last_time),
1648                          user_data);
1649                 return TDM_ERROR_NONE;
1650         }
1651
1652         return tdm_vblank_wait(vblank, req_sec, req_usec, interval, func, user_data);
1653 }
1654
1655 /* LCOV_EXCL_START */
1656 INTERN tdm_error
1657 tdm_vblank_set_add_front(tdm_vblank *vblank, unsigned int add_front)
1658 {
1659         tdm_private_vblank *private_vblank = vblank;
1660
1661         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1662
1663         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
1664
1665         if (private_vblank->add_front == add_front)
1666                 return TDM_ERROR_NONE;
1667
1668         private_vblank->add_front = add_front;
1669
1670         return TDM_ERROR_NONE;
1671 }
1672 /* LCOV_EXCL_STOP */
1673
1674 INTERN tdm_error
1675 tdm_vblank_set_resource(tdm_vblank *vblank, struct wl_resource *resource)
1676 {
1677         tdm_private_vblank *private_vblank = vblank;
1678
1679         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1680         TDM_RETURN_VAL_IF_FAIL(private_vblank->resource == NULL, TDM_ERROR_OPERATION_FAILED);
1681
1682         private_vblank->resource = resource;
1683
1684         return TDM_ERROR_NONE;
1685 }
1686
1687 INTERN double
1688 tdm_vblank_get_stamp(tdm_vblank *vblank)
1689 {
1690         tdm_private_vblank *private_vblank = vblank;
1691
1692         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1693
1694         return private_vblank->stamp;
1695 }
1696
1697 static unsigned int
1698 _tdm_vblank_get_waiting_count(tdm_private_vblank *private_vblank)
1699 {
1700         tdm_vblank_wait_info *wait_info = NULL;
1701         unsigned int count = 0;
1702
1703         LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->HW_wait_list, link) {
1704                 count++;
1705         }
1706
1707         LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->SW_wait_list, link) {
1708                 count++;
1709         }
1710
1711         return count;
1712 }
1713
1714 static void
1715 _tdm_vblank_get_client_information(tdm_private_vblank *private_vblank, pid_t *pid, const char **name)
1716 {
1717         struct wl_client *client;
1718
1719         if (!private_vblank->resource)
1720                 goto no_client;
1721
1722         client = wl_resource_get_client(private_vblank->resource);
1723         if (!client)
1724                 goto no_client;
1725
1726         wl_client_get_credentials(client, pid, NULL, NULL);
1727         *name = tdm_server_get_client_name(*pid);
1728
1729         return;
1730
1731 no_client:
1732         *pid = 0;
1733         *name = NULL;
1734         return;
1735 }
1736
1737 /* LCOV_EXCL_START */
1738 INTERN void
1739 tdm_vblank_get_vblank_list_information(tdm_display *dpy, char *reply, int *len)
1740 {
1741         tdm_private_vblank *v = NULL;
1742         tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1743         tdm_output *output = tdm_display_get_output(dpy, 0, NULL);
1744
1745         if (output)
1746                 tdm_output_get_dpms(output, &dpms);
1747
1748         TDM_SNPRINTF(reply, len, "[Client Vblank List]\n");
1749         TDM_SNPRINTF(reply, len, "* DPMS: %s\n", tdm_dpms_str(dpms));
1750         TDM_SNPRINTF(reply, len, "* global fps: %u\n", vblank_global_fps);
1751         TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1752         TDM_SNPRINTF(reply, len, "Name                 Type Wait Interval Sequence Fps Ignore Offset Fake Process\n");
1753         TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1754
1755         pthread_mutex_lock(&valid_list_lock);
1756         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
1757                 const char *proc_name = NULL;
1758                 pid_t pid = 0;
1759                 unsigned int count;
1760
1761                 _tdm_vblank_get_client_information(v, &pid, &proc_name);
1762
1763                 count = _tdm_vblank_get_waiting_count(v);
1764
1765                 TDM_SNPRINTF(reply, len, "%-8s(%p) ", v->name, v);
1766                 TDM_SNPRINTF(reply, len, "%-4s ", (v->last_type == VBLANK_EVENT_TYPE_HW) ? "HW" : "SW");
1767                 TDM_SNPRINTF(reply, len, "%-4s ", (count > 0) ? "O" : " ");
1768                 TDM_SNPRINTF(reply, len, "%-8d ", v->last_interval);
1769                 TDM_SNPRINTF(reply, len, "%-8u ", v->last_seq);
1770                 TDM_SNPRINTF(reply, len, "%-3u ", v->fps);
1771                 TDM_SNPRINTF(reply, len, "%-6u ", v->ignore_global_fps);
1772                 TDM_SNPRINTF(reply, len, "%-6d ", v->offset);
1773                 TDM_SNPRINTF(reply, len, "%-4u ", v->enable_fake);
1774                 TDM_SNPRINTF(reply, len, "%s(pid:%d)\n", (proc_name) ? proc_name : "Unknown", pid);
1775         }
1776         pthread_mutex_unlock(&valid_list_lock);
1777
1778         TDM_SNPRINTF(reply, len, "\n");
1779 }
1780 /* LCOV_EXCL_STOP */
1781