src/tdm_output.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.h"
  41 #include "tdm_backend.h"
  42 #include "tdm_private.h"
  43 #include "tdm_helper.h"
  44
  45 #define COUNT_MAX   10
  46
  47 #define OUTPUT_FUNC_ENTRY() \
  48         tdm_private_display *private_display; \
  49         tdm_private_output *private_output; \
  50         tdm_error ret = TDM_ERROR_NONE; /* default TDM_ERROR_NONE */\
  51         TDM_RETURN_VAL_IF_FAIL(output != NULL, TDM_ERROR_INVALID_PARAMETER); \
  52         private_output = (tdm_private_output*)output; \
  53         private_display = private_output->private_display
  54
  55 #define OUTPUT_FUNC_ENTRY_ERROR() \
  56         tdm_private_display *private_display; \
  57         tdm_private_output *private_output; \
  58         tdm_error ret = TDM_ERROR_NONE; /* default TDM_ERROR_NONE */\
  59         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(output != NULL, TDM_ERROR_INVALID_PARAMETER, NULL); \
  60         private_output = (tdm_private_output*)output; \
  61         private_display = private_output->private_display
  62
  63
  64 static tdm_private_hwc_window *
  65 _tdm_output_find_private_hwc_window(tdm_private_output *private_output,
  66                                                                 tdm_hwc_window *hwc_window_backend)
  67 {
  68         tdm_private_hwc_window *private_hwc_window = NULL;
  69
  70         LIST_FOR_EACH_ENTRY(private_hwc_window, &private_output->hwc_window_list, link) {
  71                 if (private_hwc_window->hwc_window_backend == hwc_window_backend)
  72                         return private_hwc_window;
  73         }
  74
  75         return NULL;
  76 }
  77
  78 EXTERN tdm_error
  79 tdm_output_get_model_info(tdm_output *output, const char **maker,
  80                                                   const char **model, const char **name)
  81 {
  82         OUTPUT_FUNC_ENTRY();
  83
  84         _pthread_mutex_lock(&private_display->lock);
  85
  86         if (maker)
  87                 *maker = private_output->caps.maker;
  88         if (model)
  89                 *model = private_output->caps.model;
  90         if (name)
  91                 *name = private_output->caps.name;
  92
  93         _pthread_mutex_unlock(&private_display->lock);
  94
  95         return ret;
  96 }
  97
  98 EXTERN tdm_error
  99 tdm_output_get_capabilities(tdm_output *output, tdm_output_capability *capabilities)
 100 {
 101         OUTPUT_FUNC_ENTRY();
 102
 103         TDM_RETURN_VAL_IF_FAIL(capabilities != NULL, TDM_ERROR_INVALID_PARAMETER);
 104
 105         _pthread_mutex_lock(&private_display->lock);
 106
 107         *capabilities = private_output->caps.capabilities;
 108
 109         _pthread_mutex_unlock(&private_display->lock);
 110
 111         return ret;
 112 }
 113
 114 EXTERN tdm_error
 115 tdm_output_get_conn_status(tdm_output *output, tdm_output_conn_status *status)
 116 {
 117         OUTPUT_FUNC_ENTRY();
 118
 119         TDM_RETURN_VAL_IF_FAIL(status != NULL, TDM_ERROR_INVALID_PARAMETER);
 120
 121         _pthread_mutex_lock(&private_display->lock);
 122
 123         *status = private_output->caps.status;
 124
 125         _pthread_mutex_unlock(&private_display->lock);
 126
 127         return ret;
 128 }
 129
 130 /* LCOV_EXCL_START */
 131 static void
 132 _tdm_output_update(tdm_output *output_backend, void *user_data)
 133 {
 134         tdm_private_display *private_display;
 135         tdm_private_output *private_output = user_data;
 136         tdm_error ret;
 137
 138         TDM_RETURN_IF_FAIL(private_output);
 139
 140         private_display = private_output->private_display;
 141
 142         ret = tdm_display_update_output(private_display, output_backend, private_output->pipe);
 143         TDM_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
 144 }
 145
 146 INTERN void
 147 tdm_output_cb_status(tdm_output *output_backend, tdm_output_conn_status status,
 148                                          void *user_data)
 149 {
 150         tdm_private_display *private_display;
 151         tdm_private_output *private_output = user_data;
 152         tdm_value value;
 153
 154         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 155         TDM_RETURN_IF_FAIL(private_output);
 156
 157         private_display = private_output->private_display;
 158
 159         if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
 160                 tdm_thread_cb_output_status output_status;
 161                 tdm_error ret;
 162
 163                 TDM_INFO("output(%d) %s", private_output->pipe, tdm_status_str(status));
 164
 165                 _tdm_output_update(output_backend, user_data);
 166
 167                 output_status.base.type = TDM_THREAD_CB_OUTPUT_STATUS;
 168                 output_status.base.length = sizeof output_status;
 169                 output_status.output_stamp = private_output->stamp;
 170                 output_status.status = status;
 171                 output_status.user_data = user_data;
 172
 173                 value.u32 = status;
 174                 tdm_output_call_change_handler_internal(private_output,
 175                                                                                                 &private_output->change_handler_list_sub,
 176                                                                                                 TDM_OUTPUT_CHANGE_CONNECTION,
 177                                                                                                 value, 0);
 178
 179                 ret = tdm_thread_send_cb(private_display->private_loop, &output_status.base);
 180                 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 181
 182                 return;
 183         }
 184
 185         TDM_INFO("output(%d) %s", private_output->pipe, tdm_status_str(status));
 186
 187         if (!tdm_thread_is_running())
 188                 _tdm_output_update(output_backend, user_data);
 189
 190         value.u32 = status;
 191         tdm_output_call_change_handler_internal(private_output,
 192                                                                                         &private_output->change_handler_list_main,
 193                                                                                         TDM_OUTPUT_CHANGE_CONNECTION,
 194                                                                                         value, 0);
 195 }
 196 /* LCOV_EXCL_STOP */
 197
 198 EXTERN tdm_error
 199 tdm_output_add_change_handler(tdm_output *output,
 200                                                           tdm_output_change_handler func,
 201                                                           void *user_data)
 202 {
 203         tdm_private_change_handler *change_handler;
 204         OUTPUT_FUNC_ENTRY();
 205
 206         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 207
 208         pthread_mutex_lock(&private_display->lock);
 209
 210         change_handler = calloc(1, sizeof(tdm_private_change_handler));
 211         if (!change_handler) {
 212                 /* LCOV_EXCL_START */
 213                 TDM_ERR("failed: alloc memory");
 214                 _pthread_mutex_unlock(&private_display->lock);
 215                 return TDM_ERROR_OUT_OF_MEMORY;
 216                 /* LCOV_EXCL_STOP */
 217         }
 218
 219         change_handler->private_output = private_output;
 220         change_handler->func = func;
 221         change_handler->user_data = user_data;
 222         change_handler->owner_tid = syscall(SYS_gettid);
 223
 224         if (!tdm_thread_in_display_thread(change_handler->owner_tid))
 225                 LIST_ADDTAIL(&change_handler->link, &private_output->change_handler_list_sub);
 226         else
 227                 LIST_ADDTAIL(&change_handler->link, &private_output->change_handler_list_main);
 228
 229         _pthread_mutex_unlock(&private_display->lock);
 230
 231         return ret;
 232 }
 233
 234 EXTERN void
 235 tdm_output_remove_change_handler(tdm_output *output,
 236                                                                  tdm_output_change_handler func,
 237                                                                  void *user_data)
 238 {
 239         tdm_private_display *private_display;
 240         tdm_private_output *private_output;
 241         tdm_private_change_handler *h = NULL, *hh = NULL;
 242
 243         TDM_RETURN_IF_FAIL(output != NULL);
 244         TDM_RETURN_IF_FAIL(func != NULL);
 245
 246         private_output = (tdm_private_output*)output;
 247         private_display = private_output->private_display;
 248
 249         _pthread_mutex_lock(&private_display->lock);
 250
 251         LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list_main, link) {
 252                 if (h->func != func || h->user_data != user_data)
 253                         continue;
 254
 255                 LIST_DEL(&h->link);
 256                 free(h);
 257
 258                 _pthread_mutex_unlock(&private_display->lock);
 259
 260                 return;
 261         }
 262
 263         LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list_sub, link) {
 264                 if (h->func != func || h->user_data != user_data)
 265                         continue;
 266
 267                 LIST_DEL(&h->link);
 268                 free(h);
 269
 270                 _pthread_mutex_unlock(&private_display->lock);
 271
 272                 return;
 273         }
 274
 275         _pthread_mutex_unlock(&private_display->lock);
 276 }
 277
 278 EXTERN tdm_error
 279 tdm_output_get_output_type(tdm_output *output, tdm_output_type *type)
 280 {
 281         OUTPUT_FUNC_ENTRY();
 282
 283         TDM_RETURN_VAL_IF_FAIL(type != NULL, TDM_ERROR_INVALID_PARAMETER);
 284
 285         _pthread_mutex_lock(&private_display->lock);
 286
 287         *type = private_output->caps.type;
 288
 289         _pthread_mutex_unlock(&private_display->lock);
 290
 291         return ret;
 292 }
 293
 294 EXTERN tdm_error
 295 tdm_output_get_layer_count(tdm_output *output, int *count)
 296 {
 297         tdm_private_layer *private_layer = NULL;
 298
 299         OUTPUT_FUNC_ENTRY();
 300
 301         TDM_RETURN_VAL_IF_FAIL(count != NULL, TDM_ERROR_INVALID_PARAMETER);
 302
 303         _pthread_mutex_lock(&private_display->lock);
 304
 305         if (private_output->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC) {
 306                 TDM_ERR("output(%p) support HWC. Use HWC functions", private_output);
 307                 *count = 0;
 308                 _pthread_mutex_unlock(&private_display->lock);
 309                 return TDM_ERROR_BAD_REQUEST;
 310         }
 311
 312         *count = 0;
 313         LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link)
 314         (*count)++;
 315         if (*count == 0) {
 316                 _pthread_mutex_unlock(&private_display->lock);
 317                 return TDM_ERROR_NONE;
 318         }
 319
 320         _pthread_mutex_unlock(&private_display->lock);
 321
 322         return ret;
 323 }
 324
 325
 326 EXTERN tdm_layer *
 327 tdm_output_get_layer(tdm_output *output, int index, tdm_error *error)
 328 {
 329         tdm_private_layer *private_layer = NULL;
 330
 331         OUTPUT_FUNC_ENTRY_ERROR();
 332
 333         _pthread_mutex_lock(&private_display->lock);
 334
 335         if (error)
 336                 *error = TDM_ERROR_NONE;
 337
 338         if (private_output->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC) {
 339                 _pthread_mutex_unlock(&private_display->lock);
 340                 TDM_ERR("output(%p) support HWC. Use HWC functions", private_output);
 341                 if (error)
 342                         *error = TDM_ERROR_BAD_REQUEST;
 343                 return NULL;
 344         }
 345
 346         LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
 347                 if (private_layer->index == index) {
 348                         _pthread_mutex_unlock(&private_display->lock);
 349                         return private_layer;
 350                 }
 351         }
 352
 353         _pthread_mutex_unlock(&private_display->lock);
 354
 355         return NULL;
 356 }
 357
 358 EXTERN tdm_error
 359 tdm_output_get_available_properties(tdm_output *output, const tdm_prop **props,
 360                                                                         int *count)
 361 {
 362         OUTPUT_FUNC_ENTRY();
 363
 364         TDM_RETURN_VAL_IF_FAIL(props != NULL, TDM_ERROR_INVALID_PARAMETER);
 365         TDM_RETURN_VAL_IF_FAIL(count != NULL, TDM_ERROR_INVALID_PARAMETER);
 366
 367         _pthread_mutex_lock(&private_display->lock);
 368
 369         *props = (const tdm_prop *)private_output->caps.props;
 370         *count = private_output->caps.prop_count;
 371
 372         _pthread_mutex_unlock(&private_display->lock);
 373
 374         return ret;
 375 }
 376
 377 EXTERN tdm_error
 378 tdm_output_get_available_modes(tdm_output *output,
 379                                                            const tdm_output_mode **modes, int *count)
 380 {
 381         OUTPUT_FUNC_ENTRY();
 382
 383         TDM_RETURN_VAL_IF_FAIL(modes != NULL, TDM_ERROR_INVALID_PARAMETER);
 384         TDM_RETURN_VAL_IF_FAIL(count != NULL, TDM_ERROR_INVALID_PARAMETER);
 385
 386         _pthread_mutex_lock(&private_display->lock);
 387
 388         *modes = (const tdm_output_mode *)private_output->caps.modes;
 389         *count = private_output->caps.mode_count;
 390
 391         _pthread_mutex_unlock(&private_display->lock);
 392
 393         return ret;
 394 }
 395
 396 EXTERN tdm_error
 397 tdm_output_get_available_size(tdm_output *output, int *min_w, int *min_h,
 398                                                           int *max_w, int *max_h, int *preferred_align)
 399 {
 400         OUTPUT_FUNC_ENTRY();
 401
 402         _pthread_mutex_lock(&private_display->lock);
 403
 404         if (min_w)
 405                 *min_w = TDM_FRONT_VALUE(private_output->caps.min_w);
 406         if (min_h)
 407                 *min_h = TDM_FRONT_VALUE(private_output->caps.min_h);
 408         if (max_w)
 409                 *max_w = TDM_FRONT_VALUE(private_output->caps.max_w);
 410         if (max_h)
 411                 *max_h = TDM_FRONT_VALUE(private_output->caps.max_h);
 412         if (preferred_align)
 413                 *preferred_align = TDM_FRONT_VALUE(private_output->caps.preferred_align);
 414
 415         _pthread_mutex_unlock(&private_display->lock);
 416
 417         return ret;
 418 }
 419
 420 EXTERN tdm_error
 421 tdm_output_get_cursor_available_size(tdm_output *output, int *min_w, int *min_h,
 422                                                                          int *max_w, int *max_h, int *preferred_align)
 423 {
 424         OUTPUT_FUNC_ENTRY();
 425
 426         _pthread_mutex_lock(&private_display->lock);
 427
 428         if (!tdm_display_check_module_abi(private_display, 1, 5)) {
 429
 430                 if (min_w)
 431                         *min_w = -1;
 432                 if (min_h)
 433                         *min_h = -1;
 434                 if (max_w)
 435                         *max_w = -1;
 436                 if (max_h)
 437                         *max_h = -1;
 438                 if (preferred_align)
 439                         *preferred_align = -1;
 440
 441                 _pthread_mutex_unlock(&private_display->lock);
 442
 443                 return TDM_ERROR_BAD_MODULE;
 444         }
 445
 446         if (min_w)
 447                 *min_w = TDM_FRONT_VALUE(private_output->caps.cursor_min_w);
 448         if (min_h)
 449                 *min_h = TDM_FRONT_VALUE(private_output->caps.cursor_min_h);
 450         if (max_w)
 451                 *max_w = TDM_FRONT_VALUE(private_output->caps.cursor_max_w);
 452         if (max_h)
 453                 *max_h = TDM_FRONT_VALUE(private_output->caps.cursor_max_h);
 454         if (preferred_align)
 455                 *preferred_align = TDM_FRONT_VALUE(private_output->caps.cursor_preferred_align);
 456
 457         _pthread_mutex_unlock(&private_display->lock);
 458
 459         return ret;
 460 }
 461
 462 EXTERN tdm_error
 463 tdm_output_get_physical_size(tdm_output *output, unsigned int *mmWidth,
 464                                                          unsigned int *mmHeight)
 465 {
 466         OUTPUT_FUNC_ENTRY();
 467
 468         _pthread_mutex_lock(&private_display->lock);
 469
 470         if (mmWidth)
 471                 *mmWidth = private_output->caps.mmWidth;
 472         if (mmHeight)
 473                 *mmHeight = private_output->caps.mmHeight;
 474
 475         _pthread_mutex_unlock(&private_display->lock);
 476
 477         return ret;
 478 }
 479
 480 EXTERN tdm_error
 481 tdm_output_get_subpixel(tdm_output *output, unsigned int *subpixel)
 482 {
 483         OUTPUT_FUNC_ENTRY();
 484         TDM_RETURN_VAL_IF_FAIL(subpixel != NULL, TDM_ERROR_INVALID_PARAMETER);
 485
 486         _pthread_mutex_lock(&private_display->lock);
 487
 488         *subpixel = private_output->caps.subpixel;
 489
 490         _pthread_mutex_unlock(&private_display->lock);
 491
 492         return ret;
 493 }
 494
 495 EXTERN tdm_error
 496 tdm_output_get_pipe(tdm_output *output, unsigned int *pipe)
 497 {
 498         OUTPUT_FUNC_ENTRY();
 499         TDM_RETURN_VAL_IF_FAIL(pipe != NULL, TDM_ERROR_INVALID_PARAMETER);
 500
 501         _pthread_mutex_lock(&private_display->lock);
 502
 503         *pipe = private_output->pipe;
 504
 505         _pthread_mutex_unlock(&private_display->lock);
 506
 507         return ret;
 508 }
 509
 510 EXTERN tdm_error
 511 tdm_output_get_primary_index(tdm_output *output, int *index)
 512 {
 513         tdm_private_layer *private_layer = NULL;
 514
 515         OUTPUT_FUNC_ENTRY();
 516         TDM_RETURN_VAL_IF_FAIL(index != NULL, TDM_ERROR_INVALID_PARAMETER);
 517
 518         _pthread_mutex_lock(&private_display->lock);
 519
 520         LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
 521                 if (private_layer->caps.capabilities & TDM_LAYER_CAPABILITY_PRIMARY) {
 522                         *index = private_layer->index;
 523                         break;
 524                 }
 525         }
 526
 527         _pthread_mutex_unlock(&private_display->lock);
 528
 529         return ret;
 530 }
 531
 532 EXTERN tdm_error
 533 tdm_output_set_property(tdm_output *output, unsigned int id, tdm_value value)
 534 {
 535         tdm_func_output *func_output;
 536         OUTPUT_FUNC_ENTRY();
 537
 538         _pthread_mutex_lock(&private_display->lock);
 539
 540         func_output = &private_display->func_output;
 541
 542         if (!func_output->output_set_property) {
 543                 /* LCOV_EXCL_START */
 544                 _pthread_mutex_unlock(&private_display->lock);
 545                 TDM_ERR("not implemented!!");
 546                 return TDM_ERROR_NOT_IMPLEMENTED;
 547                 /* LCOV_EXCL_STOP */
 548         }
 549
 550         ret = func_output->output_set_property(private_output->output_backend, id,
 551                                                                                    value);
 552
 553         _pthread_mutex_unlock(&private_display->lock);
 554
 555         return ret;
 556 }
 557
 558 EXTERN tdm_error
 559 tdm_output_get_property(tdm_output *output, unsigned int id, tdm_value *value)
 560 {
 561         tdm_func_output *func_output;
 562         OUTPUT_FUNC_ENTRY();
 563
 564         TDM_RETURN_VAL_IF_FAIL(value != NULL, TDM_ERROR_INVALID_PARAMETER);
 565
 566         _pthread_mutex_lock(&private_display->lock);
 567
 568         func_output = &private_display->func_output;
 569
 570         if (!func_output->output_get_property) {
 571                 /* LCOV_EXCL_START */
 572                 _pthread_mutex_unlock(&private_display->lock);
 573                 TDM_ERR("not implemented!!");
 574                 return TDM_ERROR_NOT_IMPLEMENTED;
 575                 /* LCOV_EXCL_STOP */
 576         }
 577
 578         ret = func_output->output_get_property(private_output->output_backend, id,
 579                                                                                    value);
 580
 581         _pthread_mutex_unlock(&private_display->lock);
 582
 583         return ret;
 584 }
 585
 586 INTERN void
 587 tdm_output_cb_vblank(tdm_output *output_backend, unsigned int sequence,
 588                                          unsigned int tv_sec, unsigned int tv_usec, void *user_data)
 589 {
 590         tdm_private_vblank_handler *vblank_handler = user_data;
 591         tdm_private_vblank_handler *v = NULL, *vv = NULL;
 592         tdm_private_output *private_output;
 593         tdm_private_display *private_display;
 594         struct list_head clone_list;
 595         int interval, sync;
 596         pid_t tid = syscall(SYS_gettid);
 597
 598         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 599         TDM_RETURN_IF_FAIL(vblank_handler);
 600
 601         private_output = vblank_handler->private_output;
 602         private_display = private_output->private_display;
 603
 604         if (vblank_handler->owner_tid != tid) {
 605                 tdm_thread_cb_output_vblank output_vblank;
 606                 tdm_error ret;
 607
 608                 output_vblank.base.type = TDM_THREAD_CB_OUTPUT_VBLANK;
 609                 output_vblank.base.length = sizeof output_vblank;
 610                 output_vblank.output_stamp = vblank_handler->private_output->stamp;
 611                 output_vblank.sequence = sequence;
 612                 output_vblank.tv_sec = tv_sec;
 613                 output_vblank.tv_usec = tv_usec;
 614                 output_vblank.user_data = user_data;
 615
 616                 ret = tdm_thread_send_cb(private_display->private_loop, &output_vblank.base);
 617                 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 618
 619                 return;
 620         }
 621
 622         if (vblank_handler->owner_tid != tid)
 623                 TDM_NEVER_GET_HERE();
 624
 625         interval = vblank_handler->interval;
 626         sync = vblank_handler->sync;
 627
 628         LIST_INITHEAD(&clone_list);
 629
 630         LIST_FOR_EACH_ENTRY_SAFE(v, vv, &private_output->vblank_handler_list, link) {
 631                 if (v->interval != interval || v->sync != sync || v->owner_tid != tid)
 632                         continue;
 633
 634                 LIST_DEL(&v->link);
 635                 LIST_ADDTAIL(&v->link, &clone_list);
 636         }
 637
 638         if (tdm_debug_module & TDM_DEBUG_COMMIT)
 639                 TDM_INFO("----------------------------------------- output(%d) got vblank", private_output->pipe);
 640
 641         _pthread_mutex_unlock(&private_display->lock);
 642         LIST_FOR_EACH_ENTRY_SAFE(v, vv, &clone_list, link) {
 643                 if (tdm_debug_module & TDM_DEBUG_COMMIT)
 644                         TDM_INFO("handler(%p)", v);
 645
 646                 LIST_DEL(&v->link);
 647
 648                 if (v->func)
 649                         v->func(v->private_output, sequence, tv_sec, tv_usec, v->user_data);
 650
 651                 free(v);
 652         }
 653         _pthread_mutex_lock(&private_display->lock);
 654
 655         if (tdm_debug_module & TDM_DEBUG_COMMIT)
 656                 TDM_INFO("-----------------------------------------...");
 657 }
 658
 659 INTERN void
 660 tdm_output_cb_commit(tdm_output *output_backend, unsigned int sequence,
 661                                          unsigned int tv_sec, unsigned int tv_usec, void *user_data)
 662 {
 663         tdm_private_output_commit_handler *output_commit_handler = user_data;
 664         tdm_private_display *private_display;
 665         tdm_private_output *private_output;
 666         tdm_private_layer *private_layer = NULL;
 667
 668         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 669
 670         if (!output_commit_handler)
 671                 return;
 672
 673         private_output = output_commit_handler->private_output;
 674         private_display = private_output->private_display;
 675
 676         if (output_commit_handler->owner_tid != syscall(SYS_gettid)) {
 677                 tdm_thread_cb_output_commit output_commit;
 678                 tdm_error ret;
 679
 680                 output_commit.base.type = TDM_THREAD_CB_OUTPUT_COMMIT;
 681                 output_commit.base.length = sizeof output_commit;
 682                 output_commit.output_stamp = private_output->stamp;
 683                 output_commit.sequence = sequence;
 684                 output_commit.tv_sec = tv_sec;
 685                 output_commit.tv_usec = tv_usec;
 686                 output_commit.user_data = user_data;
 687
 688                 ret = tdm_thread_send_cb(private_display->private_loop, &output_commit.base);
 689                 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 690
 691                 return;
 692         }
 693
 694         LIST_DEL(&output_commit_handler->link);
 695
 696         if (tdm_debug_module & TDM_DEBUG_COMMIT) {
 697                 TDM_INFO("----------------------------------------- output(%d) committed", private_output->pipe);
 698                 TDM_INFO("handler(%p)", output_commit_handler);
 699         }
 700
 701         if (private_output->commit_type == TDM_COMMIT_TYPE_OUTPUT) {
 702                 /* In case of layer commit, the below will be handled in the layer commit callback */
 703                 LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
 704                         if (private_layer->committed_buffer)
 705                                 tdm_layer_committed(private_layer, &private_layer->committed_buffer);
 706                 }
 707         }
 708
 709         if (output_commit_handler->func) {
 710                 _pthread_mutex_unlock(&private_display->lock);
 711                 output_commit_handler->func(private_output, sequence,
 712                                                                         tv_sec, tv_usec, output_commit_handler->user_data);
 713                 _pthread_mutex_lock(&private_display->lock);
 714         }
 715
 716         free(output_commit_handler);
 717
 718         if (tdm_debug_module & TDM_DEBUG_COMMIT)
 719                 TDM_INFO("-----------------------------------------...");
 720 }
 721
 722 /* add_front: To distinguish between the user vblank handlers and the layer
 723  *            commit vblank handlers. The layer commit handlers will be called
 724  *            before calling the user vblank handlers.
 725  */
 726 static tdm_error
 727 _tdm_output_wait_vblank(tdm_output *output, int interval, int sync,
 728                                                 tdm_output_vblank_handler func, void *user_data,
 729                                                 unsigned int add_front)
 730 {
 731         tdm_func_output *func_output;
 732         tdm_private_vblank_handler *vblank_handler = NULL, *v = NULL;
 733         unsigned int skip_request = 0;
 734         pid_t tid = syscall(SYS_gettid);
 735
 736         OUTPUT_FUNC_ENTRY();
 737
 738         func_output = &private_display->func_output;
 739
 740         /* interval SHOULD be at least 1 */
 741         if (interval <= 0)
 742                 interval = 1;
 743
 744         if (!func_output->output_wait_vblank) {
 745                 /* LCOV_EXCL_START */
 746                 TDM_ERR("not implemented!!");
 747                 return TDM_ERROR_NOT_IMPLEMENTED;
 748                 /* LCOV_EXCL_STOP */
 749         }
 750
 751         if (!private_output->regist_vblank_cb) {
 752                 private_output->regist_vblank_cb = 1;
 753                 ret = func_output->output_set_vblank_handler(private_output->output_backend,
 754                                 tdm_output_cb_vblank);
 755         }
 756
 757         vblank_handler = calloc(1, sizeof(tdm_private_vblank_handler));
 758         if (!vblank_handler) {
 759                 /* LCOV_EXCL_START */
 760                 TDM_ERR("failed: alloc memory");
 761                 return TDM_ERROR_OUT_OF_MEMORY;
 762                 /* LCOV_EXCL_STOP */
 763         }
 764
 765         if (tdm_debug_module & TDM_DEBUG_COMMIT)
 766                 TDM_INFO("output(%d) wait_vblank: handler(%p)", private_output->pipe, vblank_handler);
 767
 768         LIST_FOR_EACH_ENTRY(v, &private_output->vblank_handler_list, link) {
 769                 if (v->interval == interval && v->sync == sync && v->owner_tid == tid) {
 770                         skip_request = 1;
 771                         break;
 772                 }
 773         }
 774
 775         if (add_front)
 776                 LIST_ADD(&vblank_handler->link, &private_output->vblank_handler_list);
 777         else
 778                 LIST_ADDTAIL(&vblank_handler->link, &private_output->vblank_handler_list);
 779
 780         vblank_handler->private_output = private_output;
 781         vblank_handler->interval = interval;
 782         vblank_handler->sync = sync;
 783         vblank_handler->func = func;
 784         vblank_handler->user_data = user_data;
 785         vblank_handler->owner_tid = tid;
 786
 787         /* If there is the previous request, we can skip to call output_wait_vblank() */
 788         if (!skip_request) {
 789                 ret = func_output->output_wait_vblank(private_output->output_backend, interval,
 790                                                                                           sync, vblank_handler);
 791                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, wait_failed);
 792
 793                 if (tdm_debug_module & TDM_DEBUG_COMMIT)
 794                         TDM_INFO("output(%d) backend wait_vblank", private_output->pipe);
 795         }
 796
 797         return ret;
 798
 799 wait_failed:
 800         /* LCOV_EXCL_START */
 801         if (vblank_handler) {
 802                 LIST_DEL(&vblank_handler->link);
 803                 free(vblank_handler);
 804         }
 805         return ret;
 806         /* LCOV_EXCL_STOP */
 807 }
 808
 809 EXTERN tdm_error
 810 tdm_output_wait_vblank(tdm_output *output, int interval, int sync,
 811                                            tdm_output_vblank_handler func, void *user_data)
 812 {
 813         OUTPUT_FUNC_ENTRY();
 814
 815         _pthread_mutex_lock(&private_display->lock);
 816
 817         if (private_output->current_dpms_value > TDM_OUTPUT_DPMS_ON) {
 818                 TDM_WRN("output(%d) dpms: %s", private_output->pipe,
 819                                 tdm_dpms_str(private_output->current_dpms_value));
 820                 _pthread_mutex_unlock(&private_display->lock);
 821                 return TDM_ERROR_DPMS_OFF;
 822         }
 823
 824         ret = _tdm_output_wait_vblank(output, interval, sync, func, user_data, 0);
 825
 826         _pthread_mutex_unlock(&private_display->lock);
 827
 828         return ret;
 829 }
 830
 831 /* LCOV_EXCL_START */
 832 EXTERN tdm_error
 833 tdm_output_wait_vblank_add_front(tdm_output *output, int interval, int sync,
 834                                                                  tdm_output_vblank_handler func, void *user_data)
 835 {
 836         OUTPUT_FUNC_ENTRY();
 837
 838         _pthread_mutex_lock(&private_display->lock);
 839
 840         if (private_output->current_dpms_value > TDM_OUTPUT_DPMS_ON) {
 841                 TDM_WRN("output(%d) dpms: %s", private_output->pipe,
 842                                 tdm_dpms_str(private_output->current_dpms_value));
 843                 _pthread_mutex_unlock(&private_display->lock);
 844                 return TDM_ERROR_DPMS_OFF;
 845         }
 846
 847         ret = _tdm_output_wait_vblank(output, interval, sync, func, user_data, 1);
 848
 849         _pthread_mutex_unlock(&private_display->lock);
 850
 851         return ret;
 852 }
 853 /* LCOV_EXCL_STOP */
 854
 855 INTERN void
 856 tdm_output_remove_vblank_handler_internal(tdm_output *output, tdm_output_vblank_handler func, void *user_data)
 857 {
 858         tdm_private_output *private_output = (tdm_private_output*)output;
 859         tdm_private_vblank_handler *v = NULL;
 860
 861         TDM_RETURN_IF_FAIL(private_output != NULL);
 862         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 863
 864         LIST_FOR_EACH_ENTRY(v, &private_output->vblank_handler_list, link) {
 865                 if (v->func == func && v->user_data == user_data) {
 866                         /* only set func & user_data to NULL. It will be freed when an event occurs */
 867                         v->func = NULL;
 868                         v->user_data = NULL;
 869                         break;
 870                 }
 871         }
 872 }
 873
 874 INTERN void
 875 tdm_output_remove_commit_handler_internal(tdm_output *output, tdm_output_commit_handler func, void *user_data)
 876 {
 877         tdm_private_output *private_output = (tdm_private_output*)output;
 878         tdm_private_output_commit_handler *c = NULL;
 879
 880         TDM_RETURN_IF_FAIL(private_output != NULL);
 881         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 882
 883         LIST_FOR_EACH_ENTRY(c, &private_output->output_commit_handler_list, link) {
 884                 if (c->func == func && c->user_data == user_data) {
 885                         /* only set func & user_data to NULL. It will be freed when an event occurs */
 886                         c->func = NULL;
 887                         c->user_data = NULL;
 888                         break;
 889                 }
 890         }
 891 }
 892
 893 EXTERN tdm_error
 894 tdm_output_remove_vblank_handler(tdm_output *output, tdm_output_vblank_handler func, void *user_data)
 895 {
 896         OUTPUT_FUNC_ENTRY();
 897
 898         _pthread_mutex_lock(&private_display->lock);
 899
 900         tdm_output_remove_vblank_handler_internal(output, func, user_data);
 901
 902         _pthread_mutex_unlock(&private_display->lock);
 903
 904         return ret;
 905 }
 906
 907 EXTERN tdm_error
 908 tdm_output_remove_commit_handler(tdm_output *output, tdm_output_commit_handler func, void *user_data)
 909 {
 910         OUTPUT_FUNC_ENTRY();
 911
 912         _pthread_mutex_lock(&private_display->lock);
 913
 914         tdm_output_remove_commit_handler_internal(output, func, user_data);
 915
 916         _pthread_mutex_unlock(&private_display->lock);
 917
 918         return ret;
 919 }
 920
 921 INTERN tdm_error
 922 tdm_output_commit_internal(tdm_output *output, int sync, tdm_output_commit_handler func, void *user_data)
 923 {
 924         tdm_func_output *func_output;
 925         tdm_private_output_commit_handler *output_commit_handler = NULL;
 926         tdm_private_layer *private_layer = NULL;
 927         tdm_output_dpms dpms_value = TDM_OUTPUT_DPMS_ON;
 928
 929         OUTPUT_FUNC_ENTRY();
 930
 931         func_output = &private_display->func_output;
 932
 933         if (!func_output->output_commit) {
 934                 /* LCOV_EXCL_START */
 935                 TDM_ERR("not implemented!!");
 936                 return TDM_ERROR_NOT_IMPLEMENTED;
 937                 /* LCOV_EXCL_STOP */
 938         }
 939
 940         ret = tdm_output_get_dpms_internal(output, &dpms_value);
 941         TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 942
 943         if (dpms_value == TDM_OUTPUT_DPMS_ON) {
 944                 if (func) {
 945                         if (!private_output->regist_commit_cb) {
 946                                 private_output->regist_commit_cb = 1;
 947                                 ret = func_output->output_set_commit_handler(private_output->output_backend,
 948                                                         tdm_output_cb_commit);
 949                                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, commit_failed);
 950                         }
 951
 952                         output_commit_handler = calloc(1, sizeof(tdm_private_output_commit_handler));
 953                         if (!output_commit_handler) {
 954                                 /* LCOV_EXCL_START */
 955                                 TDM_ERR("failed: alloc memory");
 956                                 return TDM_ERROR_OUT_OF_MEMORY;
 957                                 /* LCOV_EXCL_STOP */
 958                         }
 959
 960                         LIST_ADDTAIL(&output_commit_handler->link, &private_output->output_commit_handler_list);
 961                         output_commit_handler->private_output = private_output;
 962                         output_commit_handler->func = func;
 963                         output_commit_handler->user_data = user_data;
 964                         output_commit_handler->owner_tid = syscall(SYS_gettid);
 965                 }
 966
 967                 ret = func_output->output_commit(private_output->output_backend, sync,
 968                                 output_commit_handler);
 969                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, commit_failed);
 970
 971                 if (tdm_debug_module & TDM_DEBUG_COMMIT)
 972                         TDM_INFO("output(%d) backend commit: handle(%p) func(%p) user_data(%p)",
 973                                         private_output->pipe, output_commit_handler, func, user_data);
 974         }
 975
 976         /* Even if DPMS is off, committed_buffer should be changed because it will be referred
 977          * for tdm_layer_committed() function.
 978          */
 979         LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
 980                 if (!private_layer->waiting_buffer)
 981                         continue;
 982
 983                 private_layer->committed_buffer = private_layer->waiting_buffer;
 984                 private_layer->waiting_buffer = NULL;
 985                 if (tdm_debug_module & TDM_DEBUG_BUFFER)
 986                         TDM_INFO("layer(%p) waiting_buffer(%p) committed_buffer(%p)",
 987                                          private_layer, private_layer->waiting_buffer,
 988                                          private_layer->committed_buffer->buffer);
 989         }
 990
 991         if (dpms_value != TDM_OUTPUT_DPMS_ON) {
 992                 TDM_WRN("TDM_OUTPUT_DPMS_OFF. Directly call commit handler instead of commit.");
 993                 if (func)
 994                         func(output, 0, 0, 0, user_data);
 995         }
 996
 997         return ret;
 998
 999 commit_failed:
1000         /* LCOV_EXCL_START */
1001         if (output_commit_handler) {
1002                 LIST_DEL(&output_commit_handler->link);
1003                 free(output_commit_handler);
1004         }
1005         return ret;
1006         /* LCOV_EXCL_STOP */
1007 }
1008
1009 EXTERN tdm_error
1010 tdm_output_commit(tdm_output *output, int sync, tdm_output_commit_handler func,
1011                                   void *user_data)
1012 {
1013         tdm_private_layer *private_layer = NULL;
1014
1015         OUTPUT_FUNC_ENTRY();
1016
1017         _pthread_mutex_lock(&private_display->lock);
1018
1019         if (private_output->commit_type == TDM_COMMIT_TYPE_NONE)
1020                 private_output->commit_type = TDM_COMMIT_TYPE_OUTPUT;
1021         else if (private_output->commit_type == TDM_COMMIT_TYPE_LAYER) {
1022                 TDM_ERR("Can't supported. Use tdm_layer_commit");
1023                 _pthread_mutex_unlock(&private_display->lock);
1024                 return TDM_ERROR_BAD_REQUEST;
1025         }
1026
1027         if (private_output->commit_per_vblank) {
1028                 TDM_ERR("Use tdm_layer_commit");
1029                 _pthread_mutex_unlock(&private_display->lock);
1030                 return TDM_ERROR_BAD_REQUEST;
1031         }
1032
1033         if (private_output->current_dpms_value > TDM_OUTPUT_DPMS_ON) {
1034                 TDM_ERR("output(%d) dpms: %s", private_output->pipe,
1035                                 tdm_dpms_str(private_output->current_dpms_value));
1036                 _pthread_mutex_unlock(&private_display->lock);
1037                 return TDM_ERROR_DPMS_OFF;
1038         }
1039
1040         if (tdm_debug_module & TDM_DEBUG_COMMIT)
1041                 TDM_INFO("output(%d) commit", private_output->pipe);
1042
1043         /* apply the pending data of all layers */
1044         LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
1045                 tdm_layer_commit_pending_data(private_layer);
1046         }
1047
1048         ret = tdm_output_commit_internal(output, sync, func, user_data);
1049
1050         _pthread_mutex_unlock(&private_display->lock);
1051
1052         return ret;
1053 }
1054
1055 EXTERN tdm_error
1056 tdm_output_set_mode(tdm_output *output, const tdm_output_mode *mode)
1057 {
1058         tdm_func_output *func_output;
1059         OUTPUT_FUNC_ENTRY();
1060
1061         TDM_RETURN_VAL_IF_FAIL(mode != NULL, TDM_ERROR_INVALID_PARAMETER);
1062
1063         _pthread_mutex_lock(&private_display->lock);
1064
1065         func_output = &private_display->func_output;
1066
1067         if (!func_output->output_set_mode) {
1068                 /* LCOV_EXCL_START */
1069                 _pthread_mutex_unlock(&private_display->lock);
1070                 TDM_ERR("not implemented!!");
1071                 return TDM_ERROR_NOT_IMPLEMENTED;
1072                 /* LCOV_EXCL_STOP */
1073         }
1074
1075         ret = func_output->output_set_mode(private_output->output_backend, mode);
1076         if (ret == TDM_ERROR_NONE) {
1077                 private_output->current_mode = mode;
1078                 TDM_INFO("mode: %dx%d %dhz", mode->hdisplay, mode->vdisplay, mode->vrefresh);
1079         }
1080
1081         _pthread_mutex_unlock(&private_display->lock);
1082
1083         return ret;
1084 }
1085
1086 EXTERN tdm_error
1087 tdm_output_get_mode(tdm_output *output, const tdm_output_mode **mode)
1088 {
1089         OUTPUT_FUNC_ENTRY();
1090
1091         TDM_RETURN_VAL_IF_FAIL(mode != NULL, TDM_ERROR_INVALID_PARAMETER);
1092
1093         _pthread_mutex_lock(&private_display->lock);
1094
1095         *mode = private_output->current_mode;
1096
1097         _pthread_mutex_unlock(&private_display->lock);
1098
1099         return ret;
1100 }
1101
1102 static tdm_error
1103 _tdm_output_dpms_changed_timeout(void *user_data)
1104 {
1105         tdm_private_output *private_output = user_data;
1106         tdm_value value;
1107
1108         value.u32 = private_output->current_dpms_value;
1109         tdm_output_call_change_handler_internal(private_output,
1110                                                                                         &private_output->change_handler_list_sub,
1111                                                                                         TDM_OUTPUT_CHANGE_DPMS,
1112                                                                                         value, 0);
1113
1114         return TDM_ERROR_NONE;
1115 }
1116
1117 /* LCOV_EXCL_START */
1118 INTERN void
1119 tdm_output_cb_dpms(tdm_output *output_backend, tdm_output_dpms dpms, void *user_data)
1120 {
1121         tdm_private_display *private_display;
1122         tdm_private_output *private_output = user_data;
1123         tdm_value value;
1124
1125         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
1126         TDM_RETURN_IF_FAIL(private_output);
1127
1128         private_display = private_output->private_display;
1129
1130         if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
1131                 tdm_thread_cb_output_dpms output_dpms;
1132                 tdm_error ret;
1133
1134                 _tdm_output_update(output_backend, user_data);
1135
1136                 output_dpms.base.type = TDM_THREAD_CB_OUTPUT_DPMS;
1137                 output_dpms.base.length = sizeof output_dpms;
1138                 output_dpms.output_stamp = private_output->stamp;
1139                 output_dpms.dpms = dpms;
1140                 output_dpms.user_data = user_data;
1141
1142                 value.u32 = dpms;
1143                 tdm_output_call_change_handler_internal(private_output,
1144                                                                                                 &private_output->change_handler_list_sub,
1145                                                                                                 TDM_OUTPUT_CHANGE_DPMS,
1146                                                                                                 value, 0);
1147
1148                 ret = tdm_thread_send_cb(private_display->private_loop, &output_dpms.base);
1149                 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
1150
1151                 return;
1152         }
1153
1154         private_output->current_dpms_value = dpms;
1155         private_output->waiting_dpms_change = 0;
1156
1157         TDM_INFO("output(%d) dpms async '%s' done", private_output->pipe, tdm_dpms_str(dpms));
1158
1159         value.u32 = dpms;
1160         tdm_output_call_change_handler_internal(private_output,
1161                                                                                         &private_output->change_handler_list_main,
1162                                                                                         TDM_OUTPUT_CHANGE_DPMS,
1163                                                                                         value, 0);
1164 }
1165 /* LCOV_EXCL_STOP */
1166
1167 EXTERN tdm_error
1168 tdm_output_set_dpms(tdm_output *output, tdm_output_dpms dpms_value)
1169 {
1170         tdm_func_output *func_output;
1171         OUTPUT_FUNC_ENTRY();
1172
1173         if (dpms_value > TDM_OUTPUT_DPMS_OFF)
1174                 dpms_value = TDM_OUTPUT_DPMS_OFF;
1175
1176         _pthread_mutex_lock(&private_display->lock);
1177
1178         if (private_output->waiting_dpms_change) {
1179                 TDM_ERR("DPMS is not changed yet. Can't be changed twice");
1180                 _pthread_mutex_unlock(&private_display->lock);
1181                 return TDM_ERROR_BAD_REQUEST;
1182         }
1183
1184         if (private_output->current_dpms_value == dpms_value) {
1185                 _pthread_mutex_unlock(&private_display->lock);
1186                 return TDM_ERROR_NONE;
1187         }
1188
1189         /** Use timer to call the output change callback of the sub-thread.
1190          * The output change callback of tdm_server and tdm_vblank was called
1191          * in the main thread. And it made the multi thread issue. If we use
1192          * the timer, we can call the sub-thread's output change callback in
1193          * sub-thread.
1194          */
1195         if (!private_output->dpms_changed_timer) {
1196                 private_output->dpms_changed_timer =
1197                         tdm_event_loop_add_timer_handler(private_output->private_display,
1198                                                                                          _tdm_output_dpms_changed_timeout, private_output, NULL);
1199                 if (!private_output->dpms_changed_timer) {
1200                         /* LCOV_EXCL_START */
1201                         TDM_ERR("can't create dpms timer!!");
1202                         _pthread_mutex_unlock(&private_display->lock);
1203                         return TDM_ERROR_OUT_OF_MEMORY;
1204                         /* LCOV_EXCL_STOP */
1205                 }
1206         }
1207
1208         func_output = &private_display->func_output;
1209
1210         TDM_INFO("output(%d) dpms '%s'", private_output->pipe, tdm_dpms_str(dpms_value));
1211
1212         if (func_output->output_set_dpms)
1213                 ret = func_output->output_set_dpms(private_output->output_backend, dpms_value);
1214         else {
1215                 /* LCOV_EXCL_START */
1216                 ret = TDM_ERROR_NONE;
1217                 TDM_WRN("not implemented!!");
1218                 goto done;
1219                 /* LCOV_EXCL_STOP */
1220         }
1221
1222 done:
1223         if (ret == TDM_ERROR_NONE) {
1224                 tdm_value value;
1225
1226                 private_output->current_dpms_value = dpms_value;
1227                 TDM_INFO("output(%d) dpms '%s' done", private_output->pipe, tdm_dpms_str(dpms_value));
1228
1229                 value.u32 = dpms_value;
1230                 tdm_output_call_change_handler_internal(private_output,
1231                                                                                                 &private_output->change_handler_list_main,
1232                                                                                                 TDM_OUTPUT_CHANGE_DPMS,
1233                                                                                                 value, 0);
1234
1235                 if (!LIST_IS_EMPTY(&private_output->change_handler_list_sub)) {
1236                         ret = tdm_event_loop_source_timer_update(private_output->dpms_changed_timer, 1);
1237                         if (ret != TDM_ERROR_NONE)
1238                                 TDM_NEVER_GET_HERE();
1239                 }
1240         }
1241
1242         _pthread_mutex_unlock(&private_display->lock);
1243
1244         return ret;
1245 }
1246
1247 /* LCOV_EXCL_START */
1248 EXTERN tdm_error
1249 tdm_output_set_dpms_async(tdm_output *output, tdm_output_dpms dpms_value)
1250 {
1251         tdm_func_output *func_output;
1252         OUTPUT_FUNC_ENTRY();
1253
1254         if (!(private_output->caps.capabilities & TDM_OUTPUT_CAPABILITY_ASYNC_DPMS)) {
1255                 TDM_ERR("output doesn't support the asynchronous DPMS control!");
1256                 return TDM_ERROR_BAD_REQUEST;
1257         }
1258
1259         if (dpms_value > TDM_OUTPUT_DPMS_OFF)
1260                 dpms_value = TDM_OUTPUT_DPMS_OFF;
1261
1262         _pthread_mutex_lock(&private_display->lock);
1263
1264         if (private_output->waiting_dpms_change) {
1265                 TDM_ERR("DPMS is not changed yet. Can't be changed twice");
1266                 _pthread_mutex_unlock(&private_display->lock);
1267                 return TDM_ERROR_BAD_REQUEST;
1268         }
1269
1270         if (private_output->current_dpms_value == dpms_value) {
1271                 _pthread_mutex_unlock(&private_display->lock);
1272                 return TDM_ERROR_NONE;
1273         }
1274
1275         func_output = &private_display->func_output;
1276         if (!func_output->output_set_dpms_handler) {
1277                 TDM_ERR("not implemented: output_set_dpms_handler");
1278                 _pthread_mutex_unlock(&private_display->lock);
1279                 return TDM_ERROR_NOT_IMPLEMENTED;
1280         }
1281
1282         if (!func_output->output_set_dpms_async) {
1283                 TDM_ERR("not implemented: output_set_dpms_async");
1284                 _pthread_mutex_unlock(&private_display->lock);
1285                 return TDM_ERROR_NOT_IMPLEMENTED;
1286         }
1287
1288         if (!private_output->regist_dpms_cb) {
1289                 private_output->regist_dpms_cb = 1;
1290                 ret = func_output->output_set_dpms_handler(private_output->output_backend,
1291                                 tdm_output_cb_dpms, private_output);
1292                 if (ret != TDM_ERROR_NONE) {
1293                         _pthread_mutex_unlock(&private_display->lock);
1294                         TDM_ERR("Can't set the dpms handler!!");
1295                         return ret;
1296                 }
1297         }
1298
1299         TDM_INFO("output(%d) dpms async '%s'", private_output->pipe, tdm_dpms_str(dpms_value));
1300
1301         ret = func_output->output_set_dpms_async(private_output->output_backend, dpms_value);
1302
1303         if (ret == TDM_ERROR_NONE) {
1304                 private_output->waiting_dpms_change = 1;
1305                 TDM_INFO("output(%d) dpms async '%s' waiting", private_output->pipe, tdm_dpms_str(dpms_value));
1306         }
1307
1308         _pthread_mutex_unlock(&private_display->lock);
1309
1310         return ret;
1311 }
1312 /* LCOV_EXCL_STOP */
1313
1314 INTERN tdm_error
1315 tdm_output_get_dpms_internal(tdm_output *output, tdm_output_dpms *dpms_value)
1316 {
1317         tdm_func_output *func_output;
1318         OUTPUT_FUNC_ENTRY();
1319
1320         TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_INVALID_PARAMETER);
1321
1322         /* TODO: this is ugly. But before calling backend's output_get_dpms(), we have
1323          * to check if all backends's DPMS operation has no problem. In future, we'd
1324          * better use new env instead of using commit_per_vblank variable to distinguish
1325          * whether we use the stored value or backend's output_get_dpms.
1326          */
1327         if (!private_output->commit_per_vblank) {
1328                 *dpms_value = private_output->current_dpms_value;
1329                 return TDM_ERROR_NONE;
1330         }
1331
1332         func_output = &private_display->func_output;
1333
1334         if (!func_output->output_get_dpms) {
1335                 /* LCOV_EXCL_START */
1336                 *dpms_value = private_output->current_dpms_value;
1337                 TDM_WRN("not implemented!!");
1338                 return TDM_ERROR_NONE;
1339                 /* LCOV_EXCL_STOP */
1340         }
1341
1342         ret = func_output->output_get_dpms(private_output->output_backend, dpms_value);
1343         if (ret != TDM_ERROR_NONE) {
1344                 /* LCOV_EXCL_START */
1345                 TDM_ERR("output_get_dpms failed");
1346                 *dpms_value = TDM_OUTPUT_DPMS_OFF;
1347                 /* LCOV_EXCL_STOP */
1348         }
1349
1350         /* TODO: this is ugly. But we have to check if all backends's DPMS operation has no problem. */
1351         if (private_output->commit_per_vblank)
1352                 if (*dpms_value != private_output->current_dpms_value) {
1353                         private_output->current_dpms_value = *dpms_value;
1354                         TDM_ERR("output(%d) dpms changed suddenly: %s",
1355                                         private_output->pipe, tdm_dpms_str(*dpms_value));
1356                 }
1357
1358         return ret;
1359 }
1360
1361 EXTERN tdm_error
1362 tdm_output_get_dpms(tdm_output *output, tdm_output_dpms *dpms_value)
1363 {
1364         OUTPUT_FUNC_ENTRY();
1365
1366         TDM_RETURN_VAL_IF_FAIL(dpms_value != NULL, TDM_ERROR_INVALID_PARAMETER);
1367
1368         _pthread_mutex_lock(&private_display->lock);
1369
1370         ret = tdm_output_get_dpms_internal(output, dpms_value);
1371
1372         _pthread_mutex_unlock(&private_display->lock);
1373
1374         return ret;
1375 }
1376
1377 EXTERN tdm_capture *
1378 tdm_output_create_capture(tdm_output *output, tdm_error *error)
1379 {
1380         tdm_capture *capture = NULL;
1381
1382         OUTPUT_FUNC_ENTRY_ERROR();
1383
1384         _pthread_mutex_lock(&private_display->lock);
1385
1386         capture = (tdm_capture *)tdm_capture_create_output_internal(private_output, error);
1387
1388         _pthread_mutex_unlock(&private_display->lock);
1389
1390         return capture;
1391 }
1392
1393 EXTERN tdm_hwc_window *
1394 tdm_output_hwc_create_window(tdm_output *output, tdm_error *error)
1395 {
1396         tdm_hwc_window *hwc_window = NULL;
1397
1398         OUTPUT_FUNC_ENTRY_ERROR();
1399
1400         _pthread_mutex_lock(&private_display->lock);
1401
1402         if (private_output->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)
1403                 hwc_window = (tdm_hwc_window *)tdm_hwc_window_create_internal(private_output, error);
1404         else {
1405                 /* LCOV_EXCL_START */
1406                 TDM_ERR("output(%p) not support HWC", private_output);
1407                 if (error)
1408                         *error = TDM_ERROR_BAD_REQUEST;
1409                 /* LCOV_EXCL_STOP */
1410         }
1411
1412         _pthread_mutex_unlock(&private_display->lock);
1413
1414         return hwc_window;
1415 }
1416
1417 EXTERN tdm_error
1418 tdm_output_hwc_destroy_window(tdm_output *output, tdm_hwc_window *hwc_window)
1419 {
1420         OUTPUT_FUNC_ENTRY();
1421
1422         TDM_RETURN_VAL_IF_FAIL(hwc_window != NULL, TDM_ERROR_INVALID_PARAMETER);
1423
1424         _pthread_mutex_lock(&private_display->lock);
1425
1426         ret = tdm_hwc_window_destroy_internal(hwc_window);
1427
1428         _pthread_mutex_unlock(&private_display->lock);
1429
1430         return ret;
1431 }
1432
1433 EXTERN tdm_error
1434 tdm_output_hwc_validate(tdm_output *output, uint32_t *num_types)
1435 {
1436         tdm_func_output *func_output = NULL;
1437
1438         OUTPUT_FUNC_ENTRY();
1439
1440         TDM_RETURN_VAL_IF_FAIL(num_types != NULL, TDM_ERROR_INVALID_PARAMETER);
1441
1442         _pthread_mutex_lock(&private_display->lock);
1443
1444         if (!(private_output->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)) {
1445                 TDM_ERR("output(%p) not support HWC", private_output);
1446                 _pthread_mutex_unlock(&private_display->lock);
1447                 return TDM_ERROR_BAD_REQUEST;
1448         }
1449
1450         func_output = &private_display->func_output;
1451
1452         if (!func_output->output_hwc_validate) {
1453                 /* LCOV_EXCL_START */
1454                 _pthread_mutex_unlock(&private_display->lock);
1455                 TDM_ERR("not implemented!!");
1456                 return TDM_ERROR_NOT_IMPLEMENTED;
1457                 /* LCOV_EXCL_STOP */
1458         }
1459
1460         ret = func_output->output_hwc_validate(private_output->output_backend, num_types);
1461
1462         _pthread_mutex_unlock(&private_display->lock);
1463
1464         return ret;
1465 }
1466
1467 EXTERN tdm_error
1468 tdm_output_hwc_set_need_validate_handler(tdm_output *output,
1469                 tdm_output_need_validate_handler hndl)
1470 {
1471         OUTPUT_FUNC_ENTRY();
1472
1473         TDM_RETURN_VAL_IF_FAIL(hndl != NULL, TDM_ERROR_INVALID_PARAMETER);
1474
1475         _pthread_mutex_lock(&private_display->lock);
1476
1477         if (!(private_output->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)) {
1478                 TDM_ERR("output(%p) not support HWC", private_output);
1479                 _pthread_mutex_unlock(&private_display->lock);
1480                 return TDM_ERROR_BAD_REQUEST;
1481         }
1482
1483         /* there's no reason to allow this */
1484         if (private_output->need_validate.hndl) {
1485
1486                 _pthread_mutex_unlock(&private_display->lock);
1487                 return TDM_ERROR_OPERATION_FAILED;
1488         }
1489
1490         private_output->need_validate.hndl = hndl;
1491
1492         _pthread_mutex_unlock(&private_display->lock);
1493
1494         return ret;
1495 }
1496
1497 EXTERN tdm_error
1498 tdm_output_hwc_get_changed_composition_types(tdm_output *output,
1499                                                                                  uint32_t *num_elements,
1500                                                                                  tdm_hwc_window **hwc_window,
1501                                                                                  tdm_hwc_window_composition *composition_types)
1502 {
1503         tdm_func_output *func_output = NULL;
1504         tdm_private_hwc_window * private_hwc_window = NULL;
1505         int i = 0;
1506
1507         OUTPUT_FUNC_ENTRY();
1508
1509         TDM_RETURN_VAL_IF_FAIL(num_elements != NULL, TDM_ERROR_INVALID_PARAMETER);
1510
1511         _pthread_mutex_lock(&private_display->lock);
1512
1513         if (!(private_output->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)) {
1514                 TDM_ERR("output(%p) not support HWC", private_output);
1515                 _pthread_mutex_unlock(&private_display->lock);
1516                 return TDM_ERROR_BAD_REQUEST;
1517         }
1518
1519         func_output = &private_display->func_output;
1520
1521         if (!func_output->output_hwc_get_changed_composition_types) {
1522                 /* LCOV_EXCL_START */
1523                 _pthread_mutex_unlock(&private_display->lock);
1524                 TDM_ERR("not implemented!!");
1525                 return TDM_ERROR_NOT_IMPLEMENTED;
1526                 /* LCOV_EXCL_STOP */
1527         }
1528
1529         ret = func_output->output_hwc_get_changed_composition_types(private_output->output_backend,
1530                                                         num_elements, hwc_window, composition_types);
1531         if (ret != TDM_ERROR_NONE) {
1532                 /* LCOV_EXCL_START */
1533                 _pthread_mutex_unlock(&private_display->lock);
1534                 return ret;
1535                 /* LCOV_EXCL_STOP */
1536         }
1537
1538         if (hwc_window == NULL || composition_types == NULL) {
1539                 _pthread_mutex_unlock(&private_display->lock);
1540                 return TDM_ERROR_NONE;
1541         }
1542
1543         for (i = 0; i < *num_elements; i++) {
1544
1545                 private_hwc_window = _tdm_output_find_private_hwc_window(private_output, hwc_window[i]);
1546
1547                 if (private_hwc_window == NULL) {
1548                         /* LCOV_EXCL_START */
1549                         TDM_ERR("failed! This should never happen!");
1550                         func_output->output_hwc_destroy_window(private_output->output_backend, hwc_window[i]);
1551                         *num_elements = 0;
1552                         _pthread_mutex_unlock(&private_display->lock);
1553                         return TDM_ERROR_OPERATION_FAILED;
1554                         /* LCOV_EXCL_STOP */
1555                 }
1556
1557                 hwc_window[i] = (tdm_hwc_window*)private_hwc_window;
1558         }
1559
1560         _pthread_mutex_unlock(&private_display->lock);
1561
1562         return ret;
1563 }
1564
1565 tdm_error
1566 tdm_output_hwc_accept_changes(tdm_output *output)
1567 {
1568         tdm_func_output *func_output = NULL;
1569
1570         OUTPUT_FUNC_ENTRY();
1571
1572         _pthread_mutex_lock(&private_display->lock);
1573
1574         if (!(private_output->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)) {
1575                 TDM_ERR("output(%p) not support HWC", private_output);
1576                 _pthread_mutex_unlock(&private_display->lock);
1577                 return TDM_ERROR_BAD_REQUEST;
1578         }
1579
1580         func_output = &private_display->func_output;
1581
1582         if (!func_output->output_hwc_validate) {
1583                 /* LCOV_EXCL_START */
1584                 _pthread_mutex_unlock(&private_display->lock);
1585                 TDM_ERR("not implemented!!");
1586                 return TDM_ERROR_NOT_IMPLEMENTED;
1587                 /* LCOV_EXCL_STOP */
1588         }
1589
1590         ret = func_output->output_hwc_accept_changes(private_output->output_backend);
1591
1592         _pthread_mutex_unlock(&private_display->lock);
1593
1594         return ret;
1595 }
1596
1597 tbm_surface_queue_h
1598 tdm_output_hwc_get_target_buffer_queue(tdm_output *output, tdm_error *error)
1599 {
1600         tdm_func_output *func_output = NULL;
1601         tbm_surface_queue_h queue = NULL;
1602
1603         OUTPUT_FUNC_ENTRY_ERROR();
1604
1605         _pthread_mutex_lock(&private_display->lock);
1606
1607         if (!(private_output->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)) {
1608                 TDM_ERR("output(%p) not support HWC", private_output);
1609                 if (error)
1610                         *error = TDM_ERROR_BAD_REQUEST;
1611                 _pthread_mutex_unlock(&private_display->lock);
1612                 return NULL;
1613         }
1614
1615         func_output = &private_display->func_output;
1616
1617         if (!func_output->output_hwc_get_target_buffer_queue) {
1618                 /* LCOV_EXCL_START */
1619                 _pthread_mutex_unlock(&private_display->lock);
1620                 TDM_ERR("not implemented!!");
1621                 return NULL;
1622                 /* LCOV_EXCL_STOP */
1623         }
1624
1625         queue = func_output->output_hwc_get_target_buffer_queue(private_output->output_backend, error);
1626
1627         _pthread_mutex_unlock(&private_display->lock);
1628
1629         return queue;
1630 }
1631
1632 /* LCOV_EXCL_START */
1633 static void
1634 _tdm_target_window_dump_buffer(tdm_private_output *private_output, tbm_surface_h buffer)
1635 {
1636         unsigned int pipe;
1637         char fname[PATH_MAX];
1638
1639         pipe = private_output->pipe;
1640
1641         snprintf(fname, sizeof(fname), "tdm_%d_target_win", pipe);
1642
1643         tbm_surface_internal_dump_buffer(buffer, fname);
1644         TDM_DBG("%s dump excute", fname);
1645
1646         return;
1647 }
1648 /* LCOV_EXCL_STOP */
1649
1650 EXTERN tdm_error
1651 tdm_output_hwc_set_client_target_buffer(tdm_output *output, tbm_surface_h target_buffer,
1652                                                                         tdm_hwc_region damage)
1653 {
1654         tdm_func_output *func_output = NULL;
1655
1656         OUTPUT_FUNC_ENTRY();
1657
1658         _pthread_mutex_lock(&private_display->lock);
1659
1660         if (!(private_output->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)) {
1661                 TDM_ERR("output(%p) not support HWC", private_output);
1662                 _pthread_mutex_unlock(&private_display->lock);
1663                 return TDM_ERROR_BAD_REQUEST;
1664         }
1665
1666         if (tdm_debug_dump & TDM_DUMP_FLAG_WINDOW) {
1667                 /* LCOV_EXCL_START */
1668                 char str[TDM_PATH_LEN];
1669                 static int i;
1670                 snprintf(str, TDM_PATH_LEN, "target_window_%d_%03d",
1671                                  private_output->index, i++);
1672                 tdm_helper_dump_buffer_str(target_buffer, tdm_debug_dump_dir, str);
1673                 /* LCOV_EXCL_STOP */
1674         }
1675
1676         func_output = &private_display->func_output;
1677
1678         if (!func_output->output_hwc_set_client_target_buffer) {
1679                 /* LCOV_EXCL_START */
1680                 _pthread_mutex_unlock(&private_display->lock);
1681                 TDM_ERR("not implemented!!");
1682                 return TDM_ERROR_NOT_IMPLEMENTED;
1683                 /* LCOV_EXCL_STOP */
1684         }
1685
1686         /* dump buffer */
1687         if (tdm_dump_enable)
1688         /* LCOV_EXCL_START */
1689                 _tdm_target_window_dump_buffer((tdm_private_output *)output, target_buffer);
1690         /* LCOV_EXCL_STOP */
1691
1692         ret = func_output->output_hwc_set_client_target_buffer(private_output->output_backend, target_buffer, damage);
1693
1694         _pthread_mutex_unlock(&private_display->lock);
1695
1696         return ret;
1697 }
1698
1699 INTERN void
1700 tdm_output_call_change_handler_internal(tdm_private_output *private_output,
1701                                                                                 struct list_head *change_handler_list,
1702                                                                                 tdm_output_change_type type,
1703                                                                                 tdm_value value,
1704                                                                                 int no_check_thread_id)
1705 {
1706         tdm_private_display *private_display;
1707         tdm_private_change_handler *change_handler = NULL;
1708
1709         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
1710         TDM_RETURN_IF_FAIL(private_output);
1711
1712         private_display = private_output->private_display;
1713         if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
1714                 if (type & TDM_OUTPUT_CHANGE_CONNECTION)
1715                         TDM_INFO("output(%d) changed: %s (%d)",
1716                                          private_output->pipe, tdm_status_str(value.u32), value.u32);
1717                 if (type & TDM_OUTPUT_CHANGE_DPMS)
1718                         TDM_INFO("output(%d) changed: dpms %s (%d)",
1719                                          private_output->pipe, tdm_dpms_str(value.u32), value.u32);
1720         }
1721
1722         if (LIST_IS_EMPTY(change_handler_list))
1723                 return;
1724
1725         LIST_FOR_EACH_ENTRY(change_handler, change_handler_list, link) {
1726                 if (!no_check_thread_id && change_handler->owner_tid != syscall(SYS_gettid))
1727                         TDM_NEVER_GET_HERE();
1728
1729                 _pthread_mutex_unlock(&private_display->lock);
1730                 change_handler->func(private_output, type,
1731                                                          value, change_handler->user_data);
1732                 _pthread_mutex_lock(&private_display->lock);
1733         }
1734 }
1735
1736
1737 /* gets called on behalf of the ecore-main-loop thread */
1738 INTERN tdm_error
1739 tdm_output_cb_need_validate(tdm_private_output *private_output)
1740 {
1741         TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_INVALID_PARAMETER);
1742
1743         TDM_INFO("tdm-backend asks for revalidation for the output:%p.", private_output);
1744
1745         if (private_output->need_validate.hndl)
1746                 private_output->need_validate.hndl((tdm_output*)private_output);
1747
1748         return TDM_ERROR_NONE;
1749 }
1750
1751 /* gets called on behalf of the tdm-thread */
1752 static tdm_error
1753 _need_validate_handler(int fd, tdm_event_loop_mask mask, void *user_data)
1754 {
1755         tdm_thread_cb_need_validate ev;
1756         tdm_private_output *private_output;
1757         tdm_error ret;
1758
1759         private_output = (tdm_private_output *)user_data;
1760
1761         ev.base.type = TDM_THREAD_CB_NEED_VALIDATE;
1762         ev.base.length = sizeof ev;
1763         ev.o = private_output;
1764
1765         ret = tdm_thread_send_cb(private_output->private_display->private_loop, &ev.base);
1766         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
1767
1768         TDM_INFO("tdm-thread: get a 'need to revalidate' event for the ouptut:%p.", private_output);
1769
1770         /* who cares about this? */
1771         return TDM_ERROR_NONE;
1772 }
1773
1774 INTERN tdm_error
1775 tdm_output_need_validate_event_init(tdm_output *output)
1776 {
1777         int fd;
1778
1779         OUTPUT_FUNC_ENTRY();
1780
1781         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
1782
1783         if (!(private_output->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)) {
1784                 TDM_ERR("output(%p) not support HWC", private_output);
1785                 return TDM_ERROR_BAD_REQUEST;
1786         }
1787
1788         /* build in eventfd fds into event_loop listened & handled by the tdm-thread */
1789         fd = eventfd(0, 0);
1790         TDM_WARNING_IF_FAIL(fd >= 0);
1791
1792         tdm_event_loop_add_fd_handler(private_display, fd,      TDM_EVENT_LOOP_READABLE,
1793                         _need_validate_handler, private_output, &ret);
1794         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
1795
1796         private_output->need_validate.event_fd = fd;
1797
1798         TDM_INFO("register an output:%p for the revalidation, event_fd:%d.", private_output, fd);
1799
1800         return ret;
1801 }
1802
1803 INTERN tdm_error
1804 tdm_output_choose_commit_per_vblank_mode(tdm_private_output *private_output, int mode)
1805 {
1806         if (!private_output)
1807                 return TDM_ERROR_INVALID_PARAMETER;
1808
1809         if (mode < 0 || mode > 2)
1810                 return TDM_ERROR_INVALID_PARAMETER;
1811
1812         private_output->commit_per_vblank = mode;
1813
1814         if (private_output->commit_per_vblank == 0)
1815                 TDM_INFO("commit per vblank: disable");
1816         else if (private_output->commit_per_vblank == 1)
1817                 TDM_INFO("commit per vblank: enable (1 layer)");
1818         else if (private_output->commit_per_vblank == 2)
1819                 TDM_INFO("commit per vblank: enable (previous commit)");
1820
1821         return TDM_ERROR_NONE;
1822 }