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                 ret = tdm_output_get_mode(output, &mode);
 388                 if (ret == TDM_ERROR_NONE && 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         tdm_error ret = TDM_ERROR_NONE;
 460
 461         TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
 462         TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 463
 464         TDM_INFO("pid: %u, name: %s, fps: %d", pid, name, fps);
 465
 466         pthread_mutex_lock(&valid_list_lock);
 467         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 468                 struct wl_client *client;
 469                 pid_t client_pid = 0;
 470
 471                 if (!v->resource)
 472                         continue;
 473
 474                 client = wl_resource_get_client(v->resource);
 475                 if (!client)
 476                         continue;
 477
 478                 wl_client_get_credentials(client, &client_pid, NULL, NULL);
 479
 480                 if (client_pid != pid)
 481                         continue;
 482
 483                 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
 484                         if (strncmp(v->name, name, TDM_NAME_LEN))
 485                                 continue;
 486                 }
 487
 488                 ret = tdm_vblank_set_fps(v, fps);
 489                 if (ret == TDM_ERROR_NONE)
 490                         TDM_INFO("(pid:%u) '%s' fps changed: %d", pid, v->name, fps);
 491                 else
 492                         TDM_ERR("(pid:%u) '%s' fps changing failed: %d", pid, v->name, fps);
 493         }
 494         pthread_mutex_unlock(&valid_list_lock);
 495
 496         return TDM_ERROR_NONE;
 497 }
 498
 499 EXTERN tdm_error
 500 tdm_vblank_set_client_ignore_global_fps(unsigned int pid, const char *name, unsigned int ignore)
 501 {
 502         tdm_private_vblank *v = NULL;
 503         tdm_error ret = TDM_ERROR_NONE;
 504
 505         TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
 506
 507         TDM_INFO("pid: %u, name: %s, ignore: %u", pid, name, ignore);
 508
 509         pthread_mutex_lock(&valid_list_lock);
 510         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 511                 struct wl_client *client;
 512                 pid_t client_pid = 0;
 513
 514                 if (!v->resource)
 515                         continue;
 516
 517                 client = wl_resource_get_client(v->resource);
 518                 if (!client)
 519                         continue;
 520
 521                 wl_client_get_credentials(client, &client_pid, NULL, NULL);
 522
 523                 if (client_pid != pid)
 524                         continue;
 525
 526                 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
 527                         if (strncmp(v->name, name, TDM_NAME_LEN))
 528                                 continue;
 529                 }
 530
 531                 ret = tdm_vblank_ignore_global_fps(v, ignore);
 532                 if (ret == TDM_ERROR_NONE)
 533                         TDM_INFO("(pid:%u) '%s' ignore changed: %u", pid, v->name, ignore);
 534                 else
 535                         TDM_ERR("(pid:%u) '%s' ignore changing failed: %u", pid, v->name, ignore);
 536         }
 537         pthread_mutex_unlock(&valid_list_lock);
 538
 539         return TDM_ERROR_NONE;
 540 }
 541
 542 EXTERN tdm_error
 543 tdm_vblank_enable_global_fps(unsigned int enable, unsigned int fps)
 544 {
 545         tdm_private_vblank *v = NULL;
 546
 547         if (enable)
 548                 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 549
 550         TDM_INFO("global fps: %s fps(%d)", (enable) ? "enabled" : "disabled", fps);
 551
 552         pthread_mutex_lock(&valid_list_lock);
 553
 554         vblank_global_fps = (enable) ? fps : 0;
 555
 556         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 557                 /* skip if vblank is created in server side */
 558                 if (!v->resource)
 559                         continue;
 560
 561                 v->check_HW_or_SW = 1;
 562         }
 563         pthread_mutex_unlock(&valid_list_lock);
 564
 565         return TDM_ERROR_NONE;
 566 }
 567
 568 static void
 569 _tdm_vblank_thread_cb_create(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data)
 570 {
 571         tdm_thread_cb_vblank_create *vblank_create = (tdm_thread_cb_vblank_create *)cb_base;
 572         tdm_vblank_create_handler_info *ch_info = user_data;
 573         tdm_private_vblank *private_vblank;
 574
 575         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 576
 577         assert(ch_info != NULL);
 578
 579         private_vblank = _tdm_vblank_find_object(private_display, vblank_create->vblank_stamp);
 580         if (!private_vblank) {
 581                 TDM_DBG("can't find vblank(%.0f) from valid_list", vblank_create->vblank_stamp);
 582                 return;
 583         }
 584
 585         private_vblank->in_create_handler = 1;
 586         tdm_display_unlock(private_display);
 587         ch_info->func(private_vblank, ch_info->user_data);
 588         tdm_display_lock(private_display);
 589         private_vblank->in_create_handler = 0;
 590 }
 591
 592 static tdm_error
 593 _tdm_vblank_call_thread_cb(tdm_private_vblank *private_vblank)
 594 {
 595         tdm_thread_cb_vblank_create vblank_create;
 596         tdm_error ret;
 597
 598         memset(&vblank_create, 0, sizeof vblank_create);
 599         vblank_create.base.type = TDM_THREAD_CB_VBLANK_CREATE;
 600         vblank_create.base.length = sizeof vblank_create;
 601         vblank_create.base.object_stamp = 1;
 602         vblank_create.base.data = NULL;
 603         vblank_create.base.sync = 0;
 604         vblank_create.vblank_stamp = private_vblank->stamp;
 605
 606         ret = tdm_thread_cb_call(private_vblank->dpy, &vblank_create.base);
 607         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 608
 609         return TDM_ERROR_NONE;
 610 }
 611
 612 EXTERN tdm_error
 613 tdm_vblank_add_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
 614 {
 615         tdm_vblank_create_handler_info *ch_info = NULL;
 616         tdm_error ret;
 617
 618         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 619         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 620
 621         pthread_mutex_lock(&valid_list_lock);
 622
 623         LIST_FOR_EACH_ENTRY(ch_info, &create_handler_list, link) {
 624                 if (ch_info->func == func && ch_info->user_data == user_data) {
 625                         TDM_ERR("can't be added twice");
 626                         pthread_mutex_unlock(&valid_list_lock);
 627                         return TDM_ERROR_BAD_REQUEST;
 628                 }
 629         }
 630
 631         ch_info = calloc(1, sizeof *ch_info);
 632         if (!ch_info) {
 633                 TDM_ERR("alloc failed: %m");
 634                 pthread_mutex_unlock(&valid_list_lock);
 635                 return TDM_ERROR_OUT_OF_MEMORY;
 636         }
 637
 638         tdm_display_lock(dpy);
 639         ret = tdm_thread_cb_add(dpy, TDM_THREAD_CB_VBLANK_CREATE, NULL, _tdm_vblank_thread_cb_create, ch_info);
 640         tdm_display_unlock(dpy);
 641
 642         if (ret != TDM_ERROR_NONE) {
 643                 TDM_ERR("tdm_thread_cb_add failed");
 644                 free(ch_info);
 645                 pthread_mutex_unlock(&valid_list_lock);
 646                 return ret;
 647         }
 648
 649         ch_info->func = func;
 650         ch_info->user_data = user_data;
 651
 652         LIST_ADDTAIL(&ch_info->link, &create_handler_list);
 653
 654         pthread_mutex_unlock(&valid_list_lock);
 655
 656         return TDM_ERROR_NONE;
 657 }
 658
 659 EXTERN void
 660 tdm_vblank_remove_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
 661 {
 662         tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
 663
 664         TDM_RETURN_IF_FAIL(dpy != NULL);
 665         TDM_RETURN_IF_FAIL(func != NULL);
 666
 667         tdm_display_lock(dpy);
 668         pthread_mutex_lock(&valid_list_lock);
 669         LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
 670                 if (ch_info->func != func || ch_info->user_data != user_data)
 671                         continue;
 672
 673                 tdm_thread_cb_remove(dpy, TDM_THREAD_CB_VBLANK_CREATE, NULL, _tdm_vblank_thread_cb_create, ch_info);
 674
 675                 LIST_DEL(&ch_info->link);
 676                 free(ch_info);
 677                 pthread_mutex_unlock(&valid_list_lock);
 678                 tdm_display_unlock(dpy);
 679                 return;
 680         }
 681         pthread_mutex_unlock(&valid_list_lock);
 682         tdm_display_unlock(dpy);
 683 }
 684
 685 static void*
 686 _tdm_vblank_find_display(tdm_private_display *private_display, double stamp)
 687 {
 688         return private_display;
 689 }
 690
 691 INTERN tdm_error
 692 tdm_vblank_init(tdm_display *dpy)
 693 {
 694         if (vblank_list_inited)
 695                 return TDM_ERROR_NONE;
 696
 697         LIST_INITHEAD(&valid_vblank_list);
 698         LIST_INITHEAD(&valid_wait_list);
 699         LIST_INITHEAD(&create_handler_list);
 700
 701         tdm_thread_cb_set_find_func(TDM_THREAD_CB_VBLANK_SW, _tdm_vblank_find_object);
 702         tdm_thread_cb_set_find_func(TDM_THREAD_CB_VBLANK_CREATE, _tdm_vblank_find_display);
 703
 704         vblank_list_inited = 1;
 705
 706         return TDM_ERROR_NONE;
 707 }
 708
 709 INTERN void
 710 tdm_vblank_deinit(tdm_display *dpy)
 711 {
 712         tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
 713
 714         if (!vblank_list_inited)
 715                 return;
 716
 717         if (!LIST_IS_EMPTY(&valid_vblank_list))
 718                 TDM_NEVER_GET_HERE();
 719
 720         if (!LIST_IS_EMPTY(&valid_wait_list))
 721                 TDM_NEVER_GET_HERE();
 722
 723         LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
 724                 LIST_DEL(&ch_info->link);
 725                 free(ch_info);
 726         }
 727
 728         vblank_list_inited = 0;
 729 }
 730
 731 EXTERN tdm_vblank *
 732 tdm_vblank_create(tdm_display *dpy, tdm_output *output, tdm_error *error)
 733 {
 734         tdm_private_vblank *private_vblank;
 735         tdm_error ret;
 736
 737         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_display_is_valid(dpy), TDM_ERROR_INVALID_PARAMETER, NULL);
 738         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_output_is_valid(output), TDM_ERROR_INVALID_PARAMETER, NULL);
 739
 740         if (error)
 741                 *error = TDM_ERROR_NONE;
 742
 743         private_vblank = calloc(1, sizeof * private_vblank);
 744         if (!private_vblank) {
 745                 /* LCOV_EXCL_START */
 746                 if (error)
 747                         *error = TDM_ERROR_OUT_OF_MEMORY;
 748                 TDM_ERR("alloc failed");
 749                 return NULL;
 750                 /* LCOV_EXCL_STOP */
 751         }
 752
 753         ret = tdm_output_add_change_handler(output, _tdm_vblank_cb_output_change, private_vblank);
 754         if (ret != TDM_ERROR_NONE) {
 755                 free(private_vblank);
 756                 if (error)
 757                         *error = TDM_ERROR_OPERATION_FAILED;
 758                 TDM_ERR("tdm_output_add_change_handler failed");
 759                 return NULL;
 760         }
 761
 762         private_vblank->stamp = ++stamp;
 763         private_vblank->owner_tid = syscall(SYS_gettid);
 764         private_vblank->dpy = dpy;
 765         private_vblank->output = output;
 766         private_vblank->check_HW_or_SW = 1;
 767         private_vblank->fps_changeable = 1;
 768         private_vblank->last_interval = -1;
 769
 770         _tdm_vblank_update_output_info(private_vblank);
 771
 772         strncpy(private_vblank->name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN - 1);
 773         private_vblank->name[TDM_NAME_LEN - 1] = '\0';
 774
 775         LIST_INITHEAD(&private_vblank->HW_wait_list);
 776         LIST_INITHEAD(&private_vblank->SW_wait_list);
 777
 778         _tdm_vblank_valid_list_add(&private_vblank->valid_link, &valid_vblank_list);
 779
 780         VIN("created. vrefresh(%d) connection(%d)",
 781                 private_vblank->vrefresh, private_vblank->connection);
 782
 783         tdm_display_lock(private_vblank->dpy);
 784         _tdm_vblank_call_thread_cb(private_vblank);
 785         tdm_display_unlock(private_vblank->dpy);
 786
 787         return (tdm_vblank *)private_vblank;
 788 }
 789
 790 EXTERN void
 791 tdm_vblank_destroy(tdm_vblank *vblank)
 792 {
 793         tdm_private_vblank *private_vblank = vblank;
 794         tdm_vblank_wait_info *w = NULL, *ww = NULL;
 795
 796         TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(vblank));
 797
 798         if (private_vblank->in_create_handler) {
 799                 TDM_ERR("NOT allowed to be called in a create handler");
 800                 return;
 801         }
 802
 803         _tdm_vblank_valid_list_del(&private_vblank->valid_link);
 804
 805         if (private_vblank->SW_timer) {
 806                 tdm_display_lock(private_vblank->dpy);
 807                 tdm_thread_cb_remove(private_vblank, TDM_THREAD_CB_VBLANK_SW, NULL, _tdm_vblank_cb_vblank_SW, NULL);
 808                 tdm_event_loop_source_remove(private_vblank->SW_timer);
 809                 tdm_display_unlock(private_vblank->dpy);
 810         }
 811
 812         tdm_output_remove_change_handler(private_vblank->output,
 813                                                                          _tdm_vblank_cb_output_change, private_vblank);
 814
 815         _tdm_vblank_free_HW_wait(private_vblank, 0, 0);
 816
 817         if (!LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
 818                 pid_t pid;
 819                 const char *proc_name;
 820                 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
 821                 VER("TDM SW vblank destroyed forcely!! (pid: %u, name: %s)", pid, proc_name);
 822         }
 823
 824         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
 825                 LIST_DEL(&w->link);
 826                 _tdm_vblank_valid_list_del(&w->valid_link);
 827                 free(w);
 828         }
 829
 830         if (private_vblank->timeout_timer) {
 831                 tdm_display_lock(private_vblank->dpy);
 832                 tdm_event_loop_source_remove(private_vblank->timeout_timer);
 833                 tdm_display_unlock(private_vblank->dpy);
 834         }
 835
 836         VIN("destroyed");
 837
 838         free(private_vblank);
 839 }
 840
 841 EXTERN tdm_output *
 842 tdm_vblank_get_output(tdm_vblank *vblank, tdm_error *error)
 843 {
 844         tdm_private_vblank *private_vblank = vblank;
 845         tdm_error ret = TDM_ERROR_NONE;
 846
 847         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER, NULL);
 848
 849         if (error)
 850                 *error = TDM_ERROR_NONE;
 851
 852         return private_vblank->output;
 853 }
 854
 855 EXTERN tdm_error
 856 tdm_vblank_get_client_pid(tdm_vblank *vblank, pid_t *pid)
 857 {
 858         tdm_private_vblank *private_vblank = vblank;
 859         struct wl_client *client;
 860
 861         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 862         TDM_RETURN_VAL_IF_FAIL(pid != NULL, TDM_ERROR_INVALID_PARAMETER);
 863
 864         if (!private_vblank->resource) {
 865                 *pid = 0;
 866                 return TDM_ERROR_NONE;
 867         }
 868
 869         client = wl_resource_get_client(private_vblank->resource);
 870         if (!client) {
 871                 *pid = 0;
 872                 return TDM_ERROR_NONE;
 873         }
 874
 875         wl_client_get_credentials(client, pid, NULL, NULL);
 876
 877         return TDM_ERROR_NONE;
 878 }
 879
 880 EXTERN tdm_error
 881 tdm_vblank_set_name(tdm_vblank *vblank, const char *name)
 882 {
 883         tdm_private_vblank *private_vblank = vblank;
 884
 885         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 886
 887         if (!name)
 888                 name = TDM_VBLANK_DEFAULT_NAME;
 889
 890         strncpy(private_vblank->name, name, TDM_NAME_LEN - 1);
 891         private_vblank->name[TDM_NAME_LEN - 1] = '\0';
 892
 893         VIN("name(%s)", name);
 894
 895         return TDM_ERROR_NONE;
 896 }
 897
 898 EXTERN tdm_error
 899 tdm_vblank_get_name(tdm_vblank *vblank, const char **name)
 900 {
 901         tdm_private_vblank *private_vblank = vblank;
 902
 903         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 904         TDM_RETURN_VAL_IF_FAIL(name != NULL, TDM_ERROR_INVALID_PARAMETER);
 905
 906         *name = (const char*)private_vblank->name;
 907
 908         return TDM_ERROR_NONE;
 909 }
 910
 911 EXTERN tdm_error
 912 tdm_vblank_set_fps(tdm_vblank *vblank, unsigned int fps)
 913 {
 914         tdm_private_vblank *private_vblank = vblank;
 915
 916         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 917         TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 918
 919         if (private_vblank->fps_fixed) {
 920                 VIN("fps(%u) can't be changed", private_vblank->fps);
 921                 return TDM_ERROR_NONE;
 922         }
 923
 924         private_vblank->fps_changeable = 0;
 925
 926         if (private_vblank->fps == fps)
 927                 return TDM_ERROR_NONE;
 928
 929         private_vblank->fps = fps;
 930         private_vblank->check_HW_or_SW = 1;
 931
 932         VIN("fps(%u) changed", fps);
 933
 934         return TDM_ERROR_NONE;
 935 }
 936
 937 EXTERN tdm_error
 938 tdm_vblank_get_fps(tdm_vblank *vblank, unsigned int *fps)
 939 {
 940         tdm_private_vblank *private_vblank = vblank;
 941
 942         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 943         TDM_RETURN_VAL_IF_FAIL(fps != NULL, TDM_ERROR_INVALID_PARAMETER);
 944
 945         *fps = private_vblank->fps;
 946
 947         return TDM_ERROR_NONE;
 948 }
 949
 950 EXTERN tdm_error
 951 tdm_vblank_set_fixed_fps(tdm_vblank *vblank, unsigned int fps)
 952 {
 953         tdm_private_vblank *private_vblank = vblank;
 954
 955         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 956         TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 957
 958         private_vblank->fps_changeable = 0;
 959         private_vblank->fps_fixed = 1;
 960
 961         if (private_vblank->fps == fps)
 962                 return TDM_ERROR_NONE;
 963
 964         private_vblank->fps = fps;
 965         private_vblank->check_HW_or_SW = 1;
 966
 967         VIN("fps(%u) fixed", fps);
 968
 969         return TDM_ERROR_NONE;
 970 }
 971
 972 EXTERN tdm_error
 973 tdm_vblank_ignore_global_fps(tdm_vblank *vblank, unsigned int ignore)
 974 {
 975         tdm_private_vblank *private_vblank = vblank;
 976
 977         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 978
 979         if (private_vblank->ignore_global_fps == ignore)
 980                 return TDM_ERROR_NONE;
 981
 982         private_vblank->ignore_global_fps = ignore;
 983         private_vblank->check_HW_or_SW = 1;
 984
 985         VIN("ignore_global_fps(%u)", private_vblank->ignore_global_fps);
 986
 987         return TDM_ERROR_NONE;
 988 }
 989
 990 EXTERN tdm_error
 991 tdm_vblank_set_offset(tdm_vblank *vblank, int offset)
 992 {
 993         tdm_private_vblank *private_vblank = vblank;
 994
 995         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 996         TDM_RETURN_VAL_IF_FAIL(offset >= 0, TDM_ERROR_INVALID_PARAMETER);
 997
 998         if (private_vblank->offset == offset)
 999                 return TDM_ERROR_NONE;
1000
1001         private_vblank->offset = offset;
1002         private_vblank->check_HW_or_SW = 1;
1003
1004         VIN("offset(%u)", private_vblank->offset);
1005
1006         return TDM_ERROR_NONE;
1007 }
1008
1009 EXTERN tdm_error
1010 tdm_vblank_get_offset(tdm_vblank *vblank, int *offset)
1011 {
1012         tdm_private_vblank *private_vblank = vblank;
1013
1014         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1015         TDM_RETURN_VAL_IF_FAIL(offset != NULL, TDM_ERROR_INVALID_PARAMETER);
1016
1017         *offset = private_vblank->offset;
1018
1019         return TDM_ERROR_NONE;
1020 }
1021
1022 EXTERN tdm_error
1023 tdm_vblank_set_enable_fake(tdm_vblank *vblank, unsigned int enable_fake)
1024 {
1025         tdm_private_vblank *private_vblank = vblank;
1026
1027         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1028
1029         if (private_vblank->enable_fake == enable_fake)
1030                 return TDM_ERROR_NONE;
1031
1032         private_vblank->enable_fake = enable_fake;
1033
1034         VIN("enable_fake(%u)", private_vblank->enable_fake);
1035
1036         return TDM_ERROR_NONE;
1037 }
1038
1039 EXTERN tdm_error
1040 tdm_vblank_get_enable_fake(tdm_vblank *vblank, unsigned int *enable_fake)
1041 {
1042         tdm_private_vblank *private_vblank = vblank;
1043
1044         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1045         TDM_RETURN_VAL_IF_FAIL(enable_fake != NULL, TDM_ERROR_INVALID_PARAMETER);
1046
1047         *enable_fake = private_vblank->enable_fake;
1048
1049         return TDM_ERROR_NONE;
1050 }
1051
1052 static tdm_error
1053 _tdm_vblank_timeout_timer_cb(void *user_data)
1054 {
1055         tdm_private_vblank *private_vblank = user_data;
1056         tdm_vblank_wait_info *w = NULL;
1057         pid_t pid;
1058         const char *proc_name;
1059
1060         TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_OPERATION_FAILED);
1061
1062         _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
1063
1064         VER("TDM vblank TIMEOUT!! (pid: %u, name: %s)", pid, proc_name);
1065         VER("quotient(%u) last_seq(%u) last_time(%.6f)", private_vblank->quotient, private_vblank->last_seq, private_vblank->last_time);
1066
1067         LIST_FOR_EACH_ENTRY(w, &private_vblank->HW_wait_list, link) {
1068                 VER("wait_info(%p) req_time(%.6f) target_seq(%u) interval(%u) hw_interval(%d)",
1069                         w, w->req_time, w->target_seq, w->interval, w->hw_interval);
1070                 tdm_output_vblank_print_wait_information(private_vblank->output, w);
1071         }
1072
1073         LIST_FOR_EACH_ENTRY(w, &private_vblank->SW_wait_list, link) {
1074                 VER("wait_info(%p) req_time(%.6f) target_time(%.6f) target_seq(%u) interval(%u)",
1075                         w, w->req_time, w->target_time, w->target_seq, w->interval);
1076         }
1077
1078         return TDM_ERROR_NONE;
1079 }
1080
1081 static void
1082 _tdm_vblank_timeout_timer_update(tdm_private_vblank *private_vblank, int ms_delay)
1083 {
1084         tdm_error ret;
1085
1086         if (!private_vblank->timeout_timer) {
1087                 private_vblank->timeout_timer =
1088                         tdm_event_loop_add_timer_handler(private_vblank->dpy,
1089                                                                                          _tdm_vblank_timeout_timer_cb,
1090                                                                                          private_vblank,
1091                                                                                          &ret);
1092                 if (!private_vblank->timeout_timer) {
1093                         VER("couldn't add timer");
1094                         return;
1095                 }
1096                 VIN("Create Timeout timer");
1097         }
1098
1099         ret = tdm_event_loop_source_timer_update(private_vblank->timeout_timer, ms_delay);
1100         if (ret != TDM_ERROR_NONE) {
1101                 VER("couldn't update timer");
1102                 return;
1103         }
1104
1105         if (ms_delay != 0)
1106                 VDB("timeout timer updated");
1107         else
1108                 VDB("timeout timer disabled");
1109 }
1110
1111 static tdm_error
1112 _tdm_vblank_sw_timer_update(tdm_private_vblank *private_vblank)
1113 {
1114         tdm_vblank_wait_info *first_wait_info = NULL;
1115         double curr, target;
1116         int ms_delay;
1117         tdm_error ret;
1118
1119         if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1120                 VER("no wait_info");
1121                 return TDM_ERROR_OPERATION_FAILED;
1122         }
1123
1124         first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1125         curr = tdm_helper_get_time();
1126         target = first_wait_info->target_time;
1127
1128         /* ms_delay should be more that 1 */
1129         if (target < curr)
1130                 ms_delay = 1;
1131         else
1132                 ms_delay = ceil((target - curr) * 1000.0);
1133
1134         if (ms_delay < 1)
1135                 ms_delay = 1;
1136
1137         if (ms_delay > 5000)
1138                 VER("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1139         else
1140                 VDB("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1141
1142         tdm_display_lock(private_vblank->dpy);
1143
1144         if (!private_vblank->SW_timer) {
1145                 private_vblank->SW_timer =
1146                         tdm_event_loop_add_timer_handler(private_vblank->dpy,
1147                                                                                          _tdm_vblank_cb_timeout_SW,
1148                                                                                          private_vblank,
1149                                                                                          &ret);
1150                 if (!private_vblank->SW_timer) {
1151                         tdm_display_unlock(private_vblank->dpy);
1152                         VER("couldn't add timer");
1153                         return ret;
1154                 }
1155
1156                 ret = tdm_thread_cb_add(private_vblank, TDM_THREAD_CB_VBLANK_SW, NULL, _tdm_vblank_cb_vblank_SW, NULL);
1157                 if (ret != TDM_ERROR_NONE) {
1158                         tdm_event_loop_source_remove(private_vblank->SW_timer);
1159                         private_vblank->SW_timer = NULL;
1160                         tdm_display_unlock(private_vblank->dpy);
1161                         VER("couldn't add thread_cb");
1162                         return ret;
1163                 }
1164
1165                 VIN("Create SW timer");
1166         }
1167
1168         private_vblank->last_interval = ms_delay;
1169
1170         ret = tdm_event_loop_source_timer_update(private_vblank->SW_timer, ms_delay);
1171         if (ret != TDM_ERROR_NONE) {
1172                 /* LCOV_EXCL_START */
1173                 tdm_display_unlock(private_vblank->dpy);
1174                 VER("couldn't update timer");
1175                 return ret;
1176                 /* LCOV_EXCL_STOP */
1177         }
1178
1179         tdm_display_unlock(private_vblank->dpy);
1180
1181         return TDM_ERROR_NONE;
1182 }
1183
1184 static void
1185 _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
1186                                                  unsigned int tv_sec, unsigned int tv_usec,
1187                                                  void *user_data)
1188 {
1189         tdm_vblank_wait_info *wait_info = user_data;
1190         tdm_private_vblank *private_vblank;
1191
1192         if (!_tdm_vblank_check_valid_wait(wait_info)) {
1193                 TDM_ERR("can't find wait(%p) from valid_wait_list", wait_info);
1194                 return;
1195         }
1196
1197         private_vblank = wait_info->private_vblank;
1198         TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
1199
1200         assert(private_vblank->owner_tid == syscall(SYS_gettid));
1201
1202         if (!_tdm_vblank_find_wait(wait_info, &private_vblank->HW_wait_list)) {
1203                 VER("can't find wait(%p)", wait_info);
1204                 return;
1205         }
1206
1207         if (wait_info->type == VBLANK_TYPE_HW_SW) {
1208                 tdm_error ret;
1209
1210                 LIST_DEL(&wait_info->link);
1211
1212                 /* kernel sends the wrong time of first vblank event. and the time of
1213                  * second vblank is correct.
1214                  */
1215                 wait_info->target_time = TDM_TIME(tv_sec, tv_usec);
1216                 wait_info->target_time += (((double)private_vblank->offset) / 1000.0);
1217
1218                 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1219
1220                 ret = _tdm_vblank_sw_timer_update(private_vblank);
1221
1222                 /* wait_info will be freed in _tdm_vblank_cb_timeout_SW() */
1223                 if (ret == TDM_ERROR_NONE) {
1224                         VIN("wait(%p) SW timer", wait_info);
1225                         return;
1226                 }
1227
1228                 VER("couldn't update sw timer");
1229         }
1230
1231         tdm_display_lock(private_vblank->dpy);
1232         _tdm_vblank_timeout_timer_update(private_vblank, 0);
1233         tdm_display_unlock(private_vblank->dpy);
1234
1235         LIST_DEL(&wait_info->link);
1236         _tdm_vblank_valid_list_del(&wait_info->valid_link);
1237
1238         /* tv_sec & tv_usec shouldn't be zero. But sometimes they are zero in some hardware.
1239          * We need to prohibit that last_time becomes zero because "last_time == 0" means
1240          * that a tdm_vblank object is just created and doesn't have the first vblank event.
1241          * If last_time becomes 0, it would make issue.
1242          */
1243         if (tv_sec == 0 && tv_usec == 0) {
1244                 double curr = tdm_helper_get_time();
1245                 tv_sec = TDM_TIME_SEC(curr);
1246                 tv_usec = TDM_TIME_USEC(curr);
1247         }
1248
1249         private_vblank->last_seq = wait_info->target_seq;
1250         private_vblank->last_time = TDM_TIME(tv_sec, tv_usec);
1251
1252         VDB("wait(%p) last(%.6f) sequence(%u) done", wait_info, private_vblank->last_time, wait_info->target_seq);
1253
1254         if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1255                 TDM_TRACE_ASYNC_END((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1256
1257         if (wait_info->func)
1258                 wait_info->func(private_vblank, TDM_ERROR_NONE, wait_info->target_seq,
1259                                                 tv_sec, tv_usec, wait_info->user_data);
1260
1261         free(wait_info);
1262 }
1263
1264 static tdm_error
1265 _tdm_vblank_wait_HW(tdm_vblank_wait_info *wait_info)
1266 {
1267         tdm_private_vblank *private_vblank = wait_info->private_vblank;
1268         int hw_interval;
1269         tdm_error ret;
1270
1271         if (private_vblank->last_type != VBLANK_EVENT_TYPE_HW) {
1272                 VIN("Use HW vblank");
1273                 private_vblank->last_type = VBLANK_EVENT_TYPE_HW;
1274         }
1275
1276         _tdm_vblank_insert_wait(wait_info, &private_vblank->HW_wait_list);
1277
1278         if (private_vblank->last_time == 0) {
1279                 hw_interval = wait_info->interval * private_vblank->quotient;
1280
1281                 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1282                 private_vblank->last_seq = 0;
1283                 private_vblank->last_time = tdm_helper_get_time();
1284
1285                 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1286                 wait_info->target_seq = 1;
1287
1288                 VDB("wait(%p) last(%.6f) hw_itvl(%d) targ_seq(%u)",
1289                         wait_info, private_vblank->last_time, hw_interval, wait_info->target_seq);
1290         } else {
1291                 double last, prev, req, curr, target;
1292                 unsigned int skip;
1293
1294                 last = private_vblank->last_time;
1295                 req = wait_info->req_time;
1296
1297                 /* make sure that req time is bigger than last. */
1298                 if (req < last)
1299                         req = last;
1300
1301                 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1302                 prev = last + private_vblank->vblank_gap * skip;
1303
1304                 curr = tdm_helper_get_time();
1305                 target = last;
1306                 while (target < curr)
1307                         target += (private_vblank->vblank_gap * wait_info->interval);
1308
1309                 hw_interval = (unsigned int)((target - curr) / private_vblank->HW_vblank_gap + TDM_TIME_MARGIN) + 1;
1310
1311                 wait_info->target_seq = private_vblank->last_seq;
1312                 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1313
1314                 if (hw_interval > 300)
1315                         VER("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1316                                 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1317                                 skip, hw_interval, wait_info->target_seq);
1318                 else
1319                         VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1320                                 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1321                                 skip, hw_interval, wait_info->target_seq);
1322         }
1323
1324         private_vblank->last_interval = hw_interval;
1325         wait_info->hw_interval = hw_interval;
1326
1327         if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1328                 TDM_TRACE_ASYNC_BEGIN((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1329
1330         if (private_vblank->add_front)
1331                 ret = tdm_output_wait_vblank_add_front(private_vblank->output, hw_interval, 0,
1332                                                                                            _tdm_vblank_cb_vblank_HW, wait_info);
1333         else
1334                 ret = tdm_output_wait_vblank(private_vblank->output, hw_interval, 0,
1335                                                                          _tdm_vblank_cb_vblank_HW, wait_info);
1336
1337         if (ret != TDM_ERROR_NONE) {
1338                 LIST_DEL(&wait_info->link);
1339                 return ret;
1340         }
1341
1342         VDB("wait(%p) waiting", wait_info);
1343
1344         return TDM_ERROR_NONE;
1345 }
1346
1347 static void
1348 _tdm_vblank_cb_vblank_SW(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data)
1349 {
1350         tdm_private_vblank *private_vblank = object;
1351         tdm_vblank_wait_info *first_wait_info = NULL, *w = NULL, *ww = NULL;
1352
1353         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
1354
1355         assert(private_vblank->owner_tid == syscall(SYS_gettid));
1356
1357         if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1358                 VER("no wait_info");
1359                 return;
1360         }
1361
1362         if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list))
1363                 TDM_NEVER_GET_HERE();
1364
1365         first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1366         TDM_RETURN_IF_FAIL(first_wait_info != NULL);
1367
1368         _tdm_vblank_timeout_timer_update(private_vblank, 0);
1369
1370         if (private_vblank->last_seq >= first_wait_info->target_seq)
1371                 TDM_ERR("last_seq(%u) target_seq(%u)", private_vblank->last_seq, first_wait_info->target_seq);
1372
1373         private_vblank->last_seq = first_wait_info->target_seq;
1374         private_vblank->last_time = first_wait_info->target_time;
1375
1376         VDB("wait(%p) last(%.6f) sequence(%u) done", first_wait_info, private_vblank->last_time, first_wait_info->target_seq);
1377
1378         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
1379                 if (w->target_time != first_wait_info->target_time)
1380                         break;
1381
1382                 LIST_DEL(&w->link);
1383                 _tdm_vblank_valid_list_del(&w->valid_link);
1384
1385                 if (w->func) {
1386                         tdm_display_unlock(private_vblank->dpy);
1387                         w->func(private_vblank, TDM_ERROR_NONE, w->target_seq,
1388                                         TDM_TIME_SEC(w->target_time), TDM_TIME_USEC(w->target_time),
1389                                         w->user_data);
1390                         tdm_display_lock(private_vblank->dpy);
1391                 }
1392
1393                 free(w);
1394         }
1395 }
1396
1397 static tdm_error
1398 _tdm_vblank_cb_timeout_SW(void *user_data)
1399 {
1400         tdm_private_vblank *private_vblank = user_data;
1401         tdm_thread_cb_vblank_sw vblank_sw;
1402         tdm_error ret;
1403
1404         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(private_vblank), TDM_ERROR_OPERATION_FAILED);
1405
1406         VIN("timeout_SW -> thread-cb");
1407
1408         memset(&vblank_sw, 0, sizeof vblank_sw);
1409         vblank_sw.base.type = TDM_THREAD_CB_VBLANK_SW;
1410         vblank_sw.base.length = sizeof vblank_sw;
1411         vblank_sw.base.object_stamp = private_vblank->stamp;
1412         vblank_sw.base.data = NULL;
1413         vblank_sw.base.sync = 0;
1414
1415         ret = tdm_thread_cb_call(private_vblank, &vblank_sw.base);
1416         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
1417
1418         return TDM_ERROR_NONE;
1419 }
1420
1421 static tdm_error
1422 _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info)
1423 {
1424         tdm_private_vblank *private_vblank = wait_info->private_vblank;
1425         tdm_error ret;
1426
1427         if (private_vblank->last_type != VBLANK_EVENT_TYPE_SW) {
1428                 VIN("Use SW vblank");
1429                 private_vblank->last_type = VBLANK_EVENT_TYPE_SW;
1430         }
1431
1432         if (private_vblank->last_time == 0) {
1433                 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1434                 private_vblank->last_seq = 0;
1435                 private_vblank->last_time = tdm_helper_get_time();
1436
1437                 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1438                 wait_info->target_seq = 1;
1439                 wait_info->target_time = private_vblank->last_time + 0.001;
1440
1441                 VDB("wait(%p) last(%.6f) target(%.6f) target sequence(%u)",
1442                         wait_info, private_vblank->last_time, wait_info->target_time, wait_info->target_seq);
1443         } else {
1444                 double last, prev, req, curr, target;
1445                 unsigned int skip;
1446
1447                 last = private_vblank->last_time;
1448                 req = wait_info->req_time;
1449
1450                 /* make sure that req time is bigger than last. */
1451                 if (req < last)
1452                         req = last;
1453
1454                 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1455                 prev = last + private_vblank->vblank_gap * skip;
1456
1457                 curr = tdm_helper_get_time();
1458                 target = prev + private_vblank->vblank_gap * wait_info->interval;
1459
1460                 while (target < curr)
1461                         target += private_vblank->vblank_gap;
1462
1463                 wait_info->target_seq = private_vblank->last_seq;
1464                 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1465
1466                 wait_info->target_time = target;
1467
1468                 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) targ_seq(%u)",
1469                         wait_info, last, req - last, prev - last, curr - last,
1470                         target, target - last, skip, wait_info->target_seq);
1471         }
1472
1473         _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1474
1475         ret = _tdm_vblank_sw_timer_update(private_vblank);
1476         if (ret != TDM_ERROR_NONE) {
1477                 /* LCOV_EXCL_START */
1478                 LIST_DEL(&wait_info->link);
1479                 VER("couldn't update sw timer");
1480                 return ret;
1481                 /* LCOV_EXCL_STOP */
1482         }
1483
1484         return TDM_ERROR_NONE;
1485 }
1486
1487 EXTERN tdm_error
1488 tdm_vblank_wait(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1489                                 unsigned int interval, tdm_vblank_handler func, void *user_data)
1490 {
1491         tdm_private_vblank *private_vblank = vblank;
1492         tdm_vblank_wait_info *wait_info;
1493         tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1494         unsigned int fps;
1495         tdm_error ret;
1496
1497         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1498         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1499         TDM_RETURN_VAL_IF_FAIL(interval > 0, TDM_ERROR_INVALID_PARAMETER);
1500
1501         if (private_vblank->in_create_handler) {
1502                 TDM_ERR("NOT allowed to be called in a create handler");
1503                 return TDM_ERROR_BAD_REQUEST;
1504         }
1505
1506         if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1507                 TDM_ERR("SHOULD be called in the owner thread(%d)", (int)private_vblank->owner_tid);
1508                 return TDM_ERROR_BAD_REQUEST;
1509         }
1510
1511         tdm_output_get_dpms(private_vblank->output, &dpms);
1512
1513         if (!private_vblank->enable_fake) {
1514                 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
1515                         VER("can't wait a vblank: output disconnected");
1516                         return TDM_ERROR_OUTPUT_DISCONNECTED;
1517                 }
1518                 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms)) {
1519                         VER("can't wait a vblank: DPMS %s", tdm_dpms_str(dpms));
1520                         return TDM_ERROR_DPMS_OFF;
1521                 }
1522         }
1523
1524         wait_info = calloc(1, sizeof * wait_info);
1525         if (!wait_info) {
1526                 /* LCOV_EXCL_START */
1527                 VER("alloc failed");
1528                 return TDM_ERROR_OUT_OF_MEMORY;
1529                 /* LCOV_EXCL_STOP */
1530         }
1531         _tdm_vblank_update_output_info(private_vblank);
1532
1533         /* set request time to current time if 0. This function seems to be called in server side. */
1534         if (req_sec == 0 && req_usec == 0) {
1535                 double curr = tdm_helper_get_time();
1536                 req_sec = TDM_TIME_SEC(curr);
1537                 req_usec = TDM_TIME_USEC(curr);
1538         }
1539
1540         LIST_INITHEAD(&wait_info->link);
1541
1542         _tdm_vblank_valid_list_add(&wait_info->valid_link, &valid_wait_list);
1543
1544         wait_info->stamp = ++stamp;
1545         wait_info->req_time = TDM_TIME(req_sec, req_usec);
1546         wait_info->interval = interval;
1547         wait_info->func = func;
1548         wait_info->user_data = user_data;
1549         wait_info->private_vblank = private_vblank;
1550
1551         if (!private_vblank->resource ||
1552                 private_vblank->ignore_global_fps ||
1553                 vblank_global_fps == 0 ||
1554                 private_vblank->fps < vblank_global_fps)
1555                 fps = private_vblank->fps;
1556         else
1557                 fps = vblank_global_fps;
1558
1559         if (private_vblank->check_HW_or_SW) {
1560                 private_vblank->check_HW_or_SW = 0;
1561                 private_vblank->vblank_gap = 1.0 / fps;
1562                 private_vblank->quotient = private_vblank->vrefresh / fps;
1563         }
1564
1565         /* 1) if fps != factor of vrefresh, SW timer
1566          * 2) if fps == factor of vrefresh && dpms == off, SW timer (Fake HW vblank)
1567          * 2) if fps == factor of vrefresh && dpms == on && offset == 0, HW vblank
1568          * 3) if fps == factor of vrefresh && dpms == on && offset != 0, HW vblank + SW timer
1569          * In case of 1), we really don't need to align with HW vblank.
1570          */
1571         if (private_vblank->vrefresh % fps)
1572                 wait_info->type = VBLANK_TYPE_SW;
1573         else if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms) ||
1574                          private_vblank->connection != TDM_OUTPUT_CONN_STATUS_MODE_SETTED)
1575                 wait_info->type = VBLANK_TYPE_SW_FAKE;
1576         else if (private_vblank->offset == 0)
1577                 wait_info->type = VBLANK_TYPE_HW;
1578         else
1579                 wait_info->type = VBLANK_TYPE_HW_SW;
1580
1581         if (wait_info->type == VBLANK_TYPE_SW || wait_info->type == VBLANK_TYPE_SW_FAKE) {
1582                 ret = _tdm_vblank_wait_SW(wait_info);
1583                 if (ret != TDM_ERROR_NONE)
1584                         TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1585         } else {
1586                 ret = _tdm_vblank_wait_HW(wait_info);
1587                 if (ret != TDM_ERROR_NONE)
1588                         TDM_ERR("_tdm_vblank_wait_HW failed: ret(%d)", ret);
1589
1590                 if (ret == TDM_ERROR_OUTPUT_DISCONNECTED || ret == TDM_ERROR_DPMS_OFF) {
1591                         ret = _tdm_vblank_wait_SW(wait_info);
1592                         if (ret != TDM_ERROR_NONE)
1593                                 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1594                 }
1595         }
1596
1597         if (ret != TDM_ERROR_NONE) {
1598                 /* LCOV_EXCL_START */
1599                 LIST_DEL(&wait_info->link);
1600                 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1601
1602                 tdm_display_lock(private_vblank->dpy);
1603                 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, wait_info);
1604                 tdm_display_unlock(private_vblank->dpy);
1605
1606                 free(wait_info);
1607                 return ret;
1608                 /* LCOV_EXCL_STOP */
1609         }
1610
1611         tdm_display_lock(private_vblank->dpy);
1612         _tdm_vblank_timeout_timer_update(private_vblank, 1000);
1613         tdm_display_unlock(private_vblank->dpy);
1614
1615         return TDM_ERROR_NONE;
1616 }
1617
1618 EXTERN tdm_error
1619 tdm_vblank_wait_seq(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1620                                         unsigned int sequence, tdm_vblank_handler func, void *user_data)
1621 {
1622         tdm_private_vblank *private_vblank = vblank;
1623         unsigned int interval;
1624
1625         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1626         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1627
1628         /* if the sequence of vblank reaches the max value, sequence can be 0. */
1629
1630         if (private_vblank->last_seq == 0) {
1631                 VWR("can't calculate interval with sequence(%u)", sequence);
1632                 interval = 1;
1633         } else if (sequence > private_vblank->last_seq ||
1634                            TDM_VBLANK_SEQ_REACHED_MAX(sequence, private_vblank->last_seq)) {
1635                 double last, curr, seq_target;
1636
1637                 last = private_vblank->last_time;
1638                 curr = tdm_helper_get_time();
1639                 seq_target = last + private_vblank->vblank_gap * (sequence - private_vblank->last_seq);
1640
1641                 /* If target is old or too close(1ms) to current, we call the handler immediately.
1642                  * 2ms? it seems too much.
1643                  */
1644                 if (seq_target < curr) {
1645                         func(vblank, TDM_ERROR_NONE, sequence,
1646                                  TDM_TIME_SEC(seq_target), TDM_TIME_USEC(seq_target),
1647                                  user_data);
1648                         return TDM_ERROR_NONE;
1649                 } else if ((seq_target - curr) < 0.001) {  /* 1ms */
1650                         func(vblank, TDM_ERROR_NONE, sequence,
1651                                  TDM_TIME_SEC(curr), TDM_TIME_USEC(curr),
1652                                  user_data);
1653                         return TDM_ERROR_NONE;
1654                 }
1655
1656                 interval = (unsigned int)((seq_target - curr) / private_vblank->vblank_gap + TDM_TIME_MARGIN) + 1;
1657         } else {
1658                 /* this seems error. But we handle this like normal to avoid the unexpected error in cliend side */
1659                 VER("sequence(%u) should be over the last sequence(%u)", sequence, private_vblank->last_seq);
1660                 func(vblank, TDM_ERROR_NONE, private_vblank->last_seq,
1661                          TDM_TIME_SEC(private_vblank->last_time), TDM_TIME_USEC(private_vblank->last_time),
1662                          user_data);
1663                 return TDM_ERROR_NONE;
1664         }
1665
1666         return tdm_vblank_wait(vblank, req_sec, req_usec, interval, func, user_data);
1667 }
1668
1669 /* LCOV_EXCL_START */
1670 INTERN tdm_error
1671 tdm_vblank_set_add_front(tdm_vblank *vblank, unsigned int add_front)
1672 {
1673         tdm_private_vblank *private_vblank = vblank;
1674
1675         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1676
1677         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
1678
1679         if (private_vblank->add_front == add_front)
1680                 return TDM_ERROR_NONE;
1681
1682         private_vblank->add_front = add_front;
1683
1684         return TDM_ERROR_NONE;
1685 }
1686 /* LCOV_EXCL_STOP */
1687
1688 INTERN tdm_error
1689 tdm_vblank_set_resource(tdm_vblank *vblank, struct wl_resource *resource)
1690 {
1691         tdm_private_vblank *private_vblank = vblank;
1692
1693         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1694         TDM_RETURN_VAL_IF_FAIL(private_vblank->resource == NULL, TDM_ERROR_OPERATION_FAILED);
1695
1696         private_vblank->resource = resource;
1697
1698         return TDM_ERROR_NONE;
1699 }
1700
1701 INTERN double
1702 tdm_vblank_get_stamp(tdm_vblank *vblank)
1703 {
1704         tdm_private_vblank *private_vblank = vblank;
1705
1706         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1707
1708         return private_vblank->stamp;
1709 }
1710
1711 static unsigned int
1712 _tdm_vblank_get_waiting_count(tdm_private_vblank *private_vblank)
1713 {
1714         tdm_vblank_wait_info *wait_info = NULL;
1715         unsigned int count = 0;
1716
1717         LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->HW_wait_list, link) {
1718                 count++;
1719         }
1720
1721         LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->SW_wait_list, link) {
1722                 count++;
1723         }
1724
1725         return count;
1726 }
1727
1728 static void
1729 _tdm_vblank_get_client_information(tdm_private_vblank *private_vblank, pid_t *pid, const char **name)
1730 {
1731         struct wl_client *client;
1732
1733         if (!private_vblank->resource)
1734                 goto no_client;
1735
1736         client = wl_resource_get_client(private_vblank->resource);
1737         if (!client)
1738                 goto no_client;
1739
1740         wl_client_get_credentials(client, pid, NULL, NULL);
1741         *name = tdm_server_get_client_name(*pid);
1742
1743         return;
1744
1745 no_client:
1746         *pid = 0;
1747         *name = NULL;
1748         return;
1749 }
1750
1751 /* LCOV_EXCL_START */
1752 INTERN void
1753 tdm_vblank_get_vblank_list_information(tdm_display *dpy, char *reply, int *len)
1754 {
1755         tdm_private_vblank *v = NULL;
1756         tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1757         tdm_output *output = tdm_display_get_output(dpy, 0, NULL);
1758
1759         if (output)
1760                 tdm_output_get_dpms(output, &dpms);
1761
1762         TDM_SNPRINTF(reply, len, "[Client Vblank List]\n");
1763         TDM_SNPRINTF(reply, len, "* DPMS: %s\n", tdm_dpms_str(dpms));
1764         TDM_SNPRINTF(reply, len, "* global fps: %u\n", vblank_global_fps);
1765         TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1766         TDM_SNPRINTF(reply, len, "Name                 Type Wait Interval Sequence Fps Ignore Offset Fake Process\n");
1767         TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1768
1769         pthread_mutex_lock(&valid_list_lock);
1770         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
1771                 const char *proc_name = NULL;
1772                 pid_t pid = 0;
1773                 unsigned int count;
1774
1775                 _tdm_vblank_get_client_information(v, &pid, &proc_name);
1776
1777                 count = _tdm_vblank_get_waiting_count(v);
1778
1779                 TDM_SNPRINTF(reply, len, "%-8s(%p) ", v->name, v);
1780                 TDM_SNPRINTF(reply, len, "%-4s ", (v->last_type == VBLANK_EVENT_TYPE_HW) ? "HW" : "SW");
1781                 TDM_SNPRINTF(reply, len, "%-4s ", (count > 0) ? "O" : " ");
1782                 TDM_SNPRINTF(reply, len, "%-8d ", v->last_interval);
1783                 TDM_SNPRINTF(reply, len, "%-8u ", v->last_seq);
1784                 TDM_SNPRINTF(reply, len, "%-3u ", v->fps);
1785                 TDM_SNPRINTF(reply, len, "%-6u ", v->ignore_global_fps);
1786                 TDM_SNPRINTF(reply, len, "%-6d ", v->offset);
1787                 TDM_SNPRINTF(reply, len, "%-4u ", v->enable_fake);
1788                 TDM_SNPRINTF(reply, len, "%s(pid:%d)\n", (proc_name) ? proc_name : "Unknown", pid);
1789         }
1790         pthread_mutex_unlock(&valid_list_lock);
1791
1792         TDM_SNPRINTF(reply, len, "\n");
1793 }
1794 /* LCOV_EXCL_STOP */
1795