src/tdm_capture.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 CAPTURE_FUNC_ENTRY() \
  46         tdm_func_capture *func_capture; \
  47         tdm_private_display *private_display; \
  48         tdm_private_capture *private_capture; \
  49         tdm_error ret = TDM_ERROR_NONE; \
  50         TDM_RETURN_VAL_IF_FAIL(capture != NULL, TDM_ERROR_INVALID_PARAMETER); \
  51         private_capture = (tdm_private_capture*)capture; \
  52         private_display = private_capture->private_display; \
  53         func_capture = &private_display->func_capture
  54
  55 static void
  56 _tdm_capture_print_list(struct list_head *list)
  57 {
  58         tdm_capture_private_buffer *b = NULL;
  59         char str[512], *p;
  60         int len = sizeof(str);
  61
  62         TDM_RETURN_IF_FAIL(list != NULL);
  63
  64         p = str;
  65         LIST_FOR_EACH_ENTRY(b, list, link) {
  66                 if (len > 0) {
  67                         int l = snprintf(p, len, " (%p)", b->buffer);
  68                         p += l;
  69                         len -= l;
  70                 } else
  71                         break;
  72         }
  73
  74         TDM_INFO("\t %s", str);
  75 }
  76
  77 static tdm_capture_private_buffer *
  78 _tdm_capture_find_tbm_buffer(struct list_head *list, tbm_surface_h buffer)
  79 {
  80         tdm_capture_private_buffer *b = NULL, *bb = NULL;
  81
  82         LIST_FOR_EACH_ENTRY_SAFE(b, bb, list, link) {
  83                 if (b->buffer == buffer)
  84                         return b;
  85         }
  86
  87         return NULL;
  88 }
  89
  90 static tdm_capture_private_buffer *
  91 _tdm_capture_find_buffer(struct list_head *list, tdm_capture_private_buffer *capture_buffer)
  92 {
  93         tdm_capture_private_buffer *b = NULL, *bb = NULL;
  94
  95         LIST_FOR_EACH_ENTRY_SAFE(b, bb, list, link) {
  96                 if (b == capture_buffer)
  97                         return b;
  98         }
  99
 100         return NULL;
 101 }
 102
 103 INTERN void
 104 tdm_capture_cb_done(tdm_capture *capture_backend, tbm_surface_h buffer,
 105                                         void *user_data)
 106 {
 107         tdm_private_capture *private_capture = user_data;
 108         tdm_private_display *private_display = private_capture->private_display;
 109         tdm_capture_private_buffer *capture_buffer = NULL, *first_entry = NULL;
 110
 111         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 112
 113         if (private_capture->owner_tid != syscall(SYS_gettid)) {
 114                 tdm_thread_cb_capture_done capture_done;
 115                 tdm_error ret;
 116
 117                 capture_done.base.type = TDM_THREAD_CB_CAPTURE_DONE;
 118                 capture_done.base.length = sizeof capture_done;
 119                 capture_done.capture_stamp = private_capture->stamp;
 120                 capture_done.buffer = buffer;
 121                 capture_done.user_data = user_data;
 122
 123                 ret = tdm_thread_send_cb(private_display->private_loop, &capture_done.base);
 124                 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 125
 126                 return;
 127         }
 128
 129         if (private_capture->owner_tid != syscall(SYS_gettid))
 130                 TDM_NEVER_GET_HERE();
 131
 132         if (tdm_debug_dump & TDM_DUMP_FLAG_CAPTURE) {
 133                 char str[TDM_PATH_LEN];
 134                 static int i;
 135                 snprintf(str, TDM_PATH_LEN, "capture_%03d", i++);
 136                 tdm_helper_dump_buffer_str(buffer, tdm_debug_dump_dir, str);
 137         }
 138
 139         if (tdm_debug_module & TDM_DEBUG_BUFFER)
 140                 TDM_INFO("capture(%p) done: %p", private_capture, buffer);
 141
 142         if (tdm_ttrace_module & TDM_TTRACE_CAPTURE) {
 143                 tbm_bo bo = tbm_surface_internal_get_bo(buffer, 0);
 144                 TDM_TRACE_ASYNC_END((intptr_t)private_capture, "[CAPTURE] %d", tbm_bo_export(bo));
 145         }
 146
 147         if (!LIST_IS_EMPTY(&private_capture->buffer_list)) {
 148                 first_entry = container_of((&private_capture->buffer_list)->next, capture_buffer, link);
 149                 if (first_entry->buffer != buffer)
 150                         TDM_ERR("buffer(%p) is skipped", first_entry->buffer);
 151         } else {
 152                 TDM_NEVER_GET_HERE();
 153         }
 154
 155         if ((capture_buffer = _tdm_capture_find_tbm_buffer(&private_capture->buffer_list, buffer))) {
 156                 LIST_DEL(&capture_buffer->link);
 157                 LIST_DELINIT(&capture_buffer->commit_link);
 158
 159                 _pthread_mutex_unlock(&private_display->lock);
 160                 if (private_capture->done_func)
 161                         private_capture->done_func(capture_buffer, buffer, private_capture->done_user_data);
 162                 tdm_buffer_unref_backend(buffer);
 163                 _pthread_mutex_lock(&private_display->lock);
 164
 165                 free(capture_buffer);
 166         }
 167 }
 168
 169 INTERN tdm_private_capture *
 170 tdm_capture_find_stamp(tdm_private_display *private_display, double stamp)
 171 {
 172         tdm_private_capture *private_capture = NULL;
 173
 174         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), NULL);
 175
 176         LIST_FOR_EACH_ENTRY(private_capture, &private_display->capture_list, display_link) {
 177                 if (private_capture->stamp == stamp)
 178                         return private_capture;
 179         }
 180
 181         return NULL;
 182 }
 183
 184 INTERN tdm_private_capture *
 185 tdm_capture_create_output_internal(tdm_private_output *private_output,
 186                                                                    tdm_error *error)
 187 {
 188         tdm_private_display *private_display = private_output->private_display;
 189         tdm_func_output *func_output = &private_display->func_output;
 190         tdm_func_capture *func_capture = &private_display->func_capture;
 191         tdm_private_capture *private_capture = NULL;
 192         tdm_capture *capture_backend = NULL;
 193         tdm_error ret = TDM_ERROR_NONE;
 194
 195         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), NULL);
 196
 197         if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE)) {
 198                 TDM_ERR("no capture capability");
 199                 if (error)
 200                         *error = TDM_ERROR_NO_CAPABILITY;
 201                 return NULL;
 202         }
 203
 204         if (!(private_display->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)) {
 205                 TDM_ERR("no output capture capability");
 206                 if (error)
 207                         *error = TDM_ERROR_NO_CAPABILITY;
 208                 return NULL;
 209         }
 210
 211         capture_backend = func_output->output_create_capture(
 212                                                   private_output->output_backend, &ret);
 213         if (ret != TDM_ERROR_NONE) {
 214                 if (error)
 215                         *error = ret;
 216                 return NULL;
 217         }
 218
 219         private_capture = calloc(1, sizeof(tdm_private_capture));
 220         if (!private_capture) {
 221                 TDM_ERR("failed: alloc memory");
 222                 func_capture->capture_destroy(capture_backend);
 223                 if (error)
 224                         *error = TDM_ERROR_OUT_OF_MEMORY;
 225                 return NULL;
 226         }
 227
 228         ret = func_capture->capture_set_done_handler(capture_backend,
 229                         tdm_capture_cb_done, private_capture);
 230         if (ret != TDM_ERROR_NONE) {
 231                 TDM_ERR("capture(%p) set capture_done_handler failed", private_capture);
 232                 func_capture->capture_destroy(capture_backend);
 233                 if (error)
 234                         *error = ret;
 235                 return NULL;
 236         }
 237
 238         private_capture->stamp = tdm_helper_get_time();
 239         while (tdm_capture_find_stamp(private_display, private_capture->stamp))
 240                 private_capture->stamp++;
 241
 242         LIST_ADD(&private_capture->link, &private_output->capture_list);
 243         LIST_ADD(&private_capture->display_link, &private_display->capture_list);
 244
 245         private_capture->target = TDM_CAPTURE_TARGET_OUTPUT;
 246         private_capture->private_display = private_display;
 247         private_capture->private_output = private_output;
 248         private_capture->private_layer = NULL;
 249         private_capture->capture_backend = capture_backend;
 250         private_capture->owner_tid = syscall(SYS_gettid);
 251
 252         LIST_INITHEAD(&private_capture->pending_buffer_list);
 253         LIST_INITHEAD(&private_capture->buffer_list);
 254
 255         TDM_DBG("capture(%p) create", private_capture);
 256
 257         if (error)
 258                 *error = TDM_ERROR_NONE;
 259
 260         return private_capture;
 261 }
 262
 263 INTERN tdm_private_capture *
 264 tdm_capture_create_layer_internal(tdm_private_layer *private_layer,
 265                                                                   tdm_error *error)
 266 {
 267         tdm_private_output *private_output = private_layer->private_output;
 268         tdm_private_display *private_display = private_output->private_display;
 269         tdm_func_layer *func_layer = &private_display->func_layer;
 270         tdm_func_capture *func_capture = &private_display->func_capture;
 271         tdm_private_capture *private_capture = NULL;
 272         tdm_capture *capture_backend = NULL;
 273         tdm_error ret = TDM_ERROR_NONE;
 274
 275         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), NULL);
 276
 277         if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE)) {
 278                 TDM_ERR("no capture capability");
 279                 if (error)
 280                         *error = TDM_ERROR_NO_CAPABILITY;
 281                 return NULL;
 282         }
 283
 284         if (!(private_display->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)) {
 285                 TDM_ERR("no layer capture capability");
 286                 if (error)
 287                         *error = TDM_ERROR_NO_CAPABILITY;
 288                 return NULL;
 289         }
 290
 291         capture_backend = func_layer->layer_create_capture(private_layer->layer_backend,
 292                                           &ret);
 293         if (ret != TDM_ERROR_NONE)
 294                 return NULL;
 295
 296         private_capture = calloc(1, sizeof(tdm_private_capture));
 297         if (!private_capture) {
 298                 TDM_ERR("failed: alloc memory");
 299                 func_capture->capture_destroy(capture_backend);
 300                 if (error)
 301                         *error = TDM_ERROR_OUT_OF_MEMORY;
 302                 return NULL;
 303         }
 304
 305         private_capture->stamp = tdm_helper_get_time();
 306         while (tdm_capture_find_stamp(private_display, private_capture->stamp))
 307                 private_capture->stamp++;
 308
 309         LIST_ADD(&private_capture->link, &private_layer->capture_list);
 310         LIST_ADD(&private_capture->display_link, &private_display->capture_list);
 311
 312         private_capture->target = TDM_CAPTURE_TARGET_LAYER;
 313         private_capture->private_display = private_display;
 314         private_capture->private_output = private_output;
 315         private_capture->private_layer = private_layer;
 316         private_capture->capture_backend = capture_backend;
 317         private_capture->owner_tid = syscall(SYS_gettid);
 318
 319         LIST_INITHEAD(&private_capture->pending_buffer_list);
 320         LIST_INITHEAD(&private_capture->buffer_list);
 321
 322         TDM_DBG("capture(%p) create", private_capture);
 323
 324         if (error)
 325                 *error = TDM_ERROR_NONE;
 326
 327         return private_capture;
 328 }
 329
 330 INTERN void
 331 tdm_capture_destroy_internal(tdm_private_capture *private_capture)
 332 {
 333         tdm_private_display *private_display;
 334         tdm_func_capture *func_capture;
 335         tdm_capture_private_buffer *b = NULL, *bb = NULL;
 336         struct list_head clone_list;
 337
 338         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 339
 340         if (!private_capture)
 341                 return;
 342
 343         private_display = private_capture->private_display;
 344
 345         LIST_DEL(&private_capture->link);
 346         LIST_DEL(&private_capture->display_link);
 347
 348         func_capture = &private_capture->private_display->func_capture;
 349         func_capture->capture_destroy(private_capture->capture_backend);
 350
 351         if (!LIST_IS_EMPTY(&private_capture->pending_buffer_list)) {
 352                 TDM_WRN("capture(%p) not finished:", private_capture);
 353                 _tdm_capture_print_list(&private_capture->pending_buffer_list);
 354
 355                 LIST_INITHEAD(&clone_list);
 356                 LIST_FOR_EACH_ENTRY_SAFE(b, bb, &private_capture->pending_buffer_list, link) {
 357                         LIST_DEL(&b->link);
 358                         LIST_ADDTAIL(&b->link, &clone_list);
 359                 }
 360
 361                 _pthread_mutex_unlock(&private_display->lock);
 362                 LIST_FOR_EACH_ENTRY_SAFE(b, bb, &clone_list, link) {
 363                         LIST_DEL(&b->link);
 364
 365                         if (tdm_ttrace_module & TDM_TTRACE_CAPTURE) {
 366                                 tbm_bo bo = tbm_surface_internal_get_bo(b->buffer, 0);
 367                                 TDM_TRACE_ASYNC_END((intptr_t)private_capture, "[CAPTURE] %d", tbm_bo_export(bo));
 368                         }
 369
 370                         tdm_buffer_unref_backend(b->buffer);
 371                         free(b);
 372                 }
 373                 _pthread_mutex_lock(&private_display->lock);
 374         }
 375
 376         if (!LIST_IS_EMPTY(&private_capture->buffer_list)) {
 377                 TDM_WRN("capture(%p) not finished:", private_capture);
 378                 _tdm_capture_print_list(&private_capture->buffer_list);
 379
 380                 LIST_INITHEAD(&clone_list);
 381                 LIST_FOR_EACH_ENTRY_SAFE(b, bb, &private_capture->buffer_list, link) {
 382                         LIST_DEL(&b->link);
 383                         LIST_ADDTAIL(&b->link, &clone_list);
 384                 }
 385
 386                 _pthread_mutex_unlock(&private_display->lock);
 387                 LIST_FOR_EACH_ENTRY_SAFE(b, bb, &clone_list, link) {
 388                         LIST_DEL(&b->link);
 389
 390                         if (tdm_ttrace_module & TDM_TTRACE_CAPTURE) {
 391                                 tbm_bo bo = tbm_surface_internal_get_bo(b->buffer, 0);
 392                                 TDM_TRACE_ASYNC_END((intptr_t)private_capture, "[CAPTURE] %d", tbm_bo_export(bo));
 393                         }
 394
 395                         tdm_buffer_unref_backend(b->buffer);
 396                         free(b);
 397                 }
 398                 _pthread_mutex_lock(&private_display->lock);
 399         }
 400
 401         private_capture->stamp = 0;
 402         free(private_capture);
 403 }
 404
 405 EXTERN void
 406 tdm_capture_destroy(tdm_capture *capture)
 407 {
 408         tdm_private_capture *private_capture = capture;
 409         tdm_private_display *private_display;
 410
 411         if (!private_capture)
 412                 return;
 413
 414         TDM_DBG("capture(%p) destroy", private_capture);
 415
 416         private_display = private_capture->private_display;
 417
 418         _pthread_mutex_lock(&private_display->lock);
 419         tdm_capture_destroy_internal(private_capture);
 420         _pthread_mutex_unlock(&private_display->lock);
 421 }
 422
 423 EXTERN tdm_error
 424 tdm_capture_set_info(tdm_capture *capture, tdm_info_capture *info)
 425 {
 426         CAPTURE_FUNC_ENTRY();
 427
 428         TDM_RETURN_VAL_IF_FAIL(info != NULL, TDM_ERROR_INVALID_PARAMETER);
 429         TDM_RETURN_VAL_IF_FAIL(info->type != 0, TDM_ERROR_INVALID_PARAMETER);
 430
 431         _pthread_mutex_lock(&private_display->lock);
 432
 433         if (!func_capture->capture_set_info) {
 434                 _pthread_mutex_unlock(&private_display->lock);
 435                 TDM_DBG("failed: not implemented!!");
 436                 return TDM_ERROR_NOT_IMPLEMENTED;
 437         }
 438
 439         if (info->type == TDM_CAPTURE_TYPE_STREAM && info->frequency == 0) {
 440                 tdm_private_output *private_output = private_capture->private_output;
 441                 info->frequency = private_output->current_mode->vrefresh;
 442         }
 443
 444         TDM_INFO("capture(%p) info: dst(%ux%u %u,%u %ux%u %c%c%c%c) trans(%d) type(%d) freq(%d) flags(%x)",
 445                          private_capture,
 446                          info->dst_config.size.h, info->dst_config.size.v,
 447                          info->dst_config.pos.x, info->dst_config.pos.y,
 448                          info->dst_config.pos.w, info->dst_config.pos.h,
 449                          FOURCC_STR(info->dst_config.format),
 450                          info->transform, info->type, info->frequency, info->flags);
 451
 452         ret = func_capture->capture_set_info(private_capture->capture_backend, info);
 453         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 454
 455         private_capture->info = *info;
 456
 457         _pthread_mutex_unlock(&private_display->lock);
 458
 459         return ret;
 460 }
 461
 462 EXTERN tdm_error
 463 tdm_capture_set_done_handler(tdm_capture *capture, tdm_capture_done_handler func, void *user_data)
 464 {
 465         tdm_private_display *private_display;
 466         tdm_private_capture *private_capture;
 467         tdm_error ret = TDM_ERROR_NONE;
 468
 469         TDM_RETURN_VAL_IF_FAIL(capture != NULL, TDM_ERROR_INVALID_PARAMETER);
 470
 471         private_capture = (tdm_private_capture*)capture;
 472         private_display = private_capture->private_display;
 473
 474         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 475
 476         _pthread_mutex_lock(&private_display->lock);
 477
 478         private_capture->done_func = func;
 479         private_capture->done_user_data = user_data;
 480
 481         _pthread_mutex_unlock(&private_display->lock);
 482
 483         return ret;
 484 }
 485
 486 EXTERN tdm_error
 487 tdm_capture_attach(tdm_capture *capture, tbm_surface_h buffer)
 488 {
 489         tdm_capture_private_buffer *capture_buffer;
 490
 491         CAPTURE_FUNC_ENTRY();
 492
 493         TDM_RETURN_VAL_IF_FAIL(buffer != NULL, TDM_ERROR_INVALID_PARAMETER);
 494
 495         _pthread_mutex_lock(&private_display->lock);
 496
 497         if (!func_capture->capture_attach) {
 498                 _pthread_mutex_unlock(&private_display->lock);
 499                 TDM_DBG("failed: not implemented!!");
 500                 return TDM_ERROR_NOT_IMPLEMENTED;
 501         }
 502
 503         if (tdm_display_check_module_abi(private_display, 1, 2) &&
 504                 private_display->caps_capture.max_attach_count > 0) {
 505                 int length = LIST_LENGTH(&private_capture->pending_buffer_list) +
 506                                          LIST_LENGTH(&private_capture->buffer_list);
 507                 if (length >= private_display->caps_capture.max_attach_count) {
 508                         _pthread_mutex_unlock(&private_display->lock);
 509                         TDM_DBG("failed: too many attached!! max_attach_count(%d)",
 510                                         private_display->caps_capture.max_attach_count);
 511                         return TDM_ERROR_BAD_REQUEST;
 512                 }
 513         }
 514
 515         capture_buffer = calloc(1, sizeof * capture_buffer);
 516         if (!capture_buffer) {
 517                 _pthread_mutex_unlock(&private_display->lock);
 518                 TDM_ERR("alloc failed");
 519                 return TDM_ERROR_OUT_OF_MEMORY;
 520         }
 521
 522         ret = func_capture->capture_attach(private_capture->capture_backend, buffer);
 523         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 524
 525         if (ret != TDM_ERROR_NONE) {
 526                 free(capture_buffer);
 527                 _pthread_mutex_unlock(&private_display->lock);
 528                 TDM_ERR("attach failed");
 529                 return ret;
 530         }
 531
 532         LIST_ADDTAIL(&capture_buffer->link, &private_capture->pending_buffer_list);
 533         capture_buffer->buffer = tdm_buffer_ref_backend(buffer);
 534
 535         if (tdm_debug_module & TDM_DEBUG_BUFFER) {
 536                 TDM_INFO("capture(%p) attached:", private_capture);
 537                 tdm_buffer_list_dump(&private_capture->buffer_list);
 538         }
 539
 540         if (tdm_ttrace_module & TDM_TTRACE_CAPTURE) {
 541                 tbm_bo bo = tbm_surface_internal_get_bo(buffer, 0);
 542                 TDM_TRACE_ASYNC_BEGIN((intptr_t)capture, "[CAPTURE] %d", tbm_bo_export(bo));
 543         }
 544
 545         _pthread_mutex_unlock(&private_display->lock);
 546
 547         return ret;
 548 }
 549
 550 EXTERN tdm_error
 551 tdm_capture_commit(tdm_capture *capture)
 552 {
 553         tdm_capture_private_buffer *b = NULL, *bb = NULL;
 554         tdm_private_output *private_output;
 555         struct list_head commit_buffer_list;
 556
 557         CAPTURE_FUNC_ENTRY();
 558
 559         _pthread_mutex_lock(&private_display->lock);
 560
 561         private_output = private_capture->private_output;
 562         if (private_output->current_dpms_value > TDM_OUTPUT_DPMS_ON) {
 563                 TDM_ERR("output(%d) dpms: %s", private_output->pipe,
 564                                 tdm_dpms_str(private_output->current_dpms_value));
 565                 _pthread_mutex_unlock(&private_display->lock);
 566                 return TDM_ERROR_BAD_REQUEST;
 567         }
 568
 569         if (!func_capture->capture_commit) {
 570                 _pthread_mutex_unlock(&private_display->lock);
 571                 TDM_DBG("failed: not implemented!!");
 572                 return TDM_ERROR_NOT_IMPLEMENTED;
 573         }
 574
 575         LIST_INITHEAD(&commit_buffer_list);
 576
 577         LIST_FOR_EACH_ENTRY_SAFE(b, bb, &private_capture->pending_buffer_list, link) {
 578                 LIST_DEL(&b->link);
 579                 LIST_ADDTAIL(&b->link, &private_capture->buffer_list);
 580                 LIST_ADDTAIL(&b->commit_link, &commit_buffer_list);
 581         }
 582
 583         ret = func_capture->capture_commit(private_capture->capture_backend);
 584         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 585
 586         LIST_FOR_EACH_ENTRY_SAFE(b, bb, &commit_buffer_list, commit_link) {
 587                 LIST_DELINIT(&b->commit_link);
 588
 589                 if (!_tdm_capture_find_buffer(&private_capture->buffer_list, b))
 590                         continue;
 591
 592                 if (ret != TDM_ERROR_NONE) {
 593                         /* Not to call the user release handler when failed.
 594                          * Do we have to call this function here really?
 595                          * User better use set_done_handler to know when pp is done. Using
 596                          * buffer_release_handler is not good.
 597                          */
 598                         tdm_buffer_remove_release_handler_internal(b->buffer);
 599
 600                         _pthread_mutex_unlock(&private_display->lock);
 601                         tdm_buffer_unref_backend(b->buffer);
 602                         _pthread_mutex_lock(&private_display->lock);
 603                         LIST_DEL(&b->link);
 604
 605                         free(b);
 606                 }
 607         }
 608
 609         _pthread_mutex_unlock(&private_display->lock);
 610
 611         return ret;
 612 }