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                 /* LCOV_EXCL_START */
 134                 char str[TDM_PATH_LEN];
 135                 static int i;
 136                 snprintf(str, TDM_PATH_LEN, "capture_%03d", i++);
 137                 tdm_helper_dump_buffer_str(buffer, tdm_debug_dump_dir, str);
 138                 /* LCOV_EXCL_STOP */
 139         }
 140
 141         if (tdm_debug_module & TDM_DEBUG_BUFFER)
 142                 TDM_INFO("capture(%p) done: %p", private_capture, buffer);
 143
 144         if (!LIST_IS_EMPTY(&private_capture->buffer_list)) {
 145                 first_entry = container_of((&private_capture->buffer_list)->next, capture_buffer, link);
 146                 if (first_entry->buffer != buffer)
 147                         TDM_ERR("buffer(%p) is skipped", first_entry->buffer);
 148         } else {
 149                 TDM_NEVER_GET_HERE();
 150         }
 151
 152         if ((capture_buffer = _tdm_capture_find_tbm_buffer(&private_capture->buffer_list, buffer))) {
 153                 LIST_DEL(&capture_buffer->link);
 154                 LIST_DELINIT(&capture_buffer->commit_link);
 155
 156                 _pthread_mutex_unlock(&private_display->lock);
 157                 if (private_capture->done_func)
 158                         private_capture->done_func(capture_buffer, buffer, private_capture->done_user_data);
 159                 tdm_buffer_unref_backend(buffer);
 160                 _pthread_mutex_lock(&private_display->lock);
 161
 162                 free(capture_buffer);
 163         }
 164 }
 165
 166 INTERN tdm_private_capture *
 167 tdm_capture_find_stamp(tdm_private_display *private_display, double stamp)
 168 {
 169         tdm_private_capture *private_capture = NULL;
 170
 171         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), NULL);
 172
 173         LIST_FOR_EACH_ENTRY(private_capture, &private_display->capture_list, display_link) {
 174                 if (private_capture->stamp == stamp)
 175                         return private_capture;
 176         }
 177
 178         return NULL;
 179 }
 180
 181 INTERN tdm_private_capture *
 182 tdm_capture_create_output_internal(tdm_private_output *private_output,
 183                                                                    tdm_error *error)
 184 {
 185         tdm_private_display *private_display = private_output->private_display;
 186         tdm_func_output *func_output = &private_display->func_output;
 187         tdm_func_capture *func_capture = &private_display->func_capture;
 188         tdm_private_capture *private_capture = NULL;
 189         tdm_capture *capture_backend = NULL;
 190         tdm_error ret = TDM_ERROR_NONE;
 191
 192         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), NULL);
 193
 194         if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE)) {
 195                 /* LCOV_EXCL_START */
 196                 TDM_ERR("no capture capability");
 197                 if (error)
 198                         *error = TDM_ERROR_NO_CAPABILITY;
 199                 return NULL;
 200                 /* LCOV_EXCL_STOP */
 201         }
 202
 203         if (!(private_display->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)) {
 204                 /* LCOV_EXCL_START */
 205                 TDM_ERR("no output capture capability");
 206                 if (error)
 207                         *error = TDM_ERROR_NO_CAPABILITY;
 208                 return NULL;
 209                 /* LCOV_EXCL_STOP */
 210         }
 211
 212         capture_backend = func_output->output_create_capture(
 213                                                   private_output->output_backend, &ret);
 214         if (ret != TDM_ERROR_NONE) {
 215                 /* LCOV_EXCL_START */
 216                 if (error)
 217                         *error = ret;
 218                 return NULL;
 219                 /* LCOV_EXCL_STOP */
 220         }
 221
 222         private_capture = calloc(1, sizeof(tdm_private_capture));
 223         if (!private_capture) {
 224                 /* LCOV_EXCL_START */
 225                 TDM_ERR("failed: alloc memory");
 226                 func_capture->capture_destroy(capture_backend);
 227                 if (error)
 228                         *error = TDM_ERROR_OUT_OF_MEMORY;
 229                 return NULL;
 230                 /* LCOV_EXCL_STOP */
 231         }
 232
 233         ret = func_capture->capture_set_done_handler(capture_backend,
 234                         tdm_capture_cb_done, private_capture);
 235         if (ret != TDM_ERROR_NONE) {
 236                 /* LCOV_EXCL_START */
 237                 TDM_ERR("capture(%p) set capture_done_handler failed", private_capture);
 238                 func_capture->capture_destroy(capture_backend);
 239                 if (error)
 240                         *error = ret;
 241                 return NULL;
 242                 /* LCOV_EXCL_STOP */
 243         }
 244
 245         private_capture->stamp = tdm_helper_get_time();
 246         while (tdm_capture_find_stamp(private_display, private_capture->stamp))
 247                 private_capture->stamp++;
 248
 249         LIST_ADD(&private_capture->link, &private_output->capture_list);
 250         LIST_ADD(&private_capture->display_link, &private_display->capture_list);
 251
 252         private_capture->target = TDM_CAPTURE_TARGET_OUTPUT;
 253         private_capture->private_display = private_display;
 254         private_capture->private_output = private_output;
 255         private_capture->private_layer = NULL;
 256         private_capture->capture_backend = capture_backend;
 257         private_capture->owner_tid = syscall(SYS_gettid);
 258
 259         LIST_INITHEAD(&private_capture->pending_buffer_list);
 260         LIST_INITHEAD(&private_capture->buffer_list);
 261
 262         TDM_DBG("capture(%p) create", private_capture);
 263
 264         if (error)
 265                 *error = TDM_ERROR_NONE;
 266
 267         return private_capture;
 268 }
 269
 270 /* LCOV_EXCL_START */
 271 INTERN tdm_private_capture *
 272 tdm_capture_create_layer_internal(tdm_private_layer *private_layer,
 273                                                                   tdm_error *error)
 274 {
 275         tdm_private_output *private_output = private_layer->private_output;
 276         tdm_private_display *private_display = private_output->private_display;
 277         tdm_func_layer *func_layer = &private_display->func_layer;
 278         tdm_func_capture *func_capture = &private_display->func_capture;
 279         tdm_private_capture *private_capture = NULL;
 280         tdm_capture *capture_backend = NULL;
 281         tdm_error ret = TDM_ERROR_NONE;
 282
 283         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), NULL);
 284
 285         if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE)) {
 286                 TDM_ERR("no capture capability");
 287                 if (error)
 288                         *error = TDM_ERROR_NO_CAPABILITY;
 289                 return NULL;
 290         }
 291
 292         if (!(private_display->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)) {
 293                 TDM_ERR("no layer capture capability");
 294                 if (error)
 295                         *error = TDM_ERROR_NO_CAPABILITY;
 296                 return NULL;
 297         }
 298
 299         capture_backend = func_layer->layer_create_capture(private_layer->layer_backend,
 300                                           &ret);
 301         if (ret != TDM_ERROR_NONE)
 302                 return NULL;
 303
 304         private_capture = calloc(1, sizeof(tdm_private_capture));
 305         if (!private_capture) {
 306                 TDM_ERR("failed: alloc memory");
 307                 func_capture->capture_destroy(capture_backend);
 308                 if (error)
 309                         *error = TDM_ERROR_OUT_OF_MEMORY;
 310                 return NULL;
 311         }
 312
 313         private_capture->stamp = tdm_helper_get_time();
 314         while (tdm_capture_find_stamp(private_display, private_capture->stamp))
 315                 private_capture->stamp++;
 316
 317         LIST_ADD(&private_capture->link, &private_layer->capture_list);
 318         LIST_ADD(&private_capture->display_link, &private_display->capture_list);
 319
 320         private_capture->target = TDM_CAPTURE_TARGET_LAYER;
 321         private_capture->private_display = private_display;
 322         private_capture->private_output = private_output;
 323         private_capture->private_layer = private_layer;
 324         private_capture->capture_backend = capture_backend;
 325         private_capture->owner_tid = syscall(SYS_gettid);
 326
 327         LIST_INITHEAD(&private_capture->pending_buffer_list);
 328         LIST_INITHEAD(&private_capture->buffer_list);
 329
 330         TDM_DBG("capture(%p) create", private_capture);
 331
 332         if (error)
 333                 *error = TDM_ERROR_NONE;
 334
 335         return private_capture;
 336 }
 337 /* LCOV_EXCL_STOP */
 338
 339 INTERN void
 340 tdm_capture_destroy_internal(tdm_private_capture *private_capture)
 341 {
 342         tdm_private_display *private_display;
 343         tdm_func_capture *func_capture;
 344         tdm_capture_private_buffer *b = NULL, *bb = NULL;
 345         struct list_head clone_list;
 346
 347         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 348
 349         if (!private_capture)
 350                 return;
 351
 352         private_display = private_capture->private_display;
 353
 354         LIST_DEL(&private_capture->link);
 355         LIST_DEL(&private_capture->display_link);
 356
 357         func_capture = &private_capture->private_display->func_capture;
 358         func_capture->capture_destroy(private_capture->capture_backend);
 359
 360         if (!LIST_IS_EMPTY(&private_capture->pending_buffer_list)) {
 361                 TDM_WRN("capture(%p) not finished:", private_capture);
 362                 _tdm_capture_print_list(&private_capture->pending_buffer_list);
 363
 364                 LIST_INITHEAD(&clone_list);
 365                 LIST_FOR_EACH_ENTRY_SAFE(b, bb, &private_capture->pending_buffer_list, link) {
 366                         LIST_DEL(&b->link);
 367                         LIST_ADDTAIL(&b->link, &clone_list);
 368                 }
 369
 370                 _pthread_mutex_unlock(&private_display->lock);
 371                 LIST_FOR_EACH_ENTRY_SAFE(b, bb, &clone_list, link) {
 372                         LIST_DEL(&b->link);
 373                         tdm_buffer_unref_backend(b->buffer);
 374                         free(b);
 375                 }
 376                 _pthread_mutex_lock(&private_display->lock);
 377         }
 378
 379         if (!LIST_IS_EMPTY(&private_capture->buffer_list)) {
 380                 TDM_WRN("capture(%p) not finished:", private_capture);
 381                 _tdm_capture_print_list(&private_capture->buffer_list);
 382
 383                 LIST_INITHEAD(&clone_list);
 384                 LIST_FOR_EACH_ENTRY_SAFE(b, bb, &private_capture->buffer_list, link) {
 385                         LIST_DEL(&b->link);
 386                         LIST_ADDTAIL(&b->link, &clone_list);
 387                 }
 388
 389                 _pthread_mutex_unlock(&private_display->lock);
 390                 LIST_FOR_EACH_ENTRY_SAFE(b, bb, &clone_list, link) {
 391                         LIST_DEL(&b->link);
 392                         tdm_buffer_unref_backend(b->buffer);
 393                         free(b);
 394                 }
 395                 _pthread_mutex_lock(&private_display->lock);
 396         }
 397
 398         private_capture->stamp = 0;
 399         free(private_capture);
 400 }
 401
 402 EXTERN void
 403 tdm_capture_destroy(tdm_capture *capture)
 404 {
 405         tdm_private_capture *private_capture = capture;
 406         tdm_private_display *private_display;
 407
 408         if (!private_capture)
 409                 return;
 410
 411         TDM_DBG("capture(%p) destroy", private_capture);
 412
 413         private_display = private_capture->private_display;
 414
 415         _pthread_mutex_lock(&private_display->lock);
 416         tdm_capture_destroy_internal(private_capture);
 417         _pthread_mutex_unlock(&private_display->lock);
 418 }
 419
 420 EXTERN tdm_error
 421 tdm_capture_set_info(tdm_capture *capture, tdm_info_capture *info)
 422 {
 423         CAPTURE_FUNC_ENTRY();
 424
 425         TDM_RETURN_VAL_IF_FAIL(info != NULL, TDM_ERROR_INVALID_PARAMETER);
 426         TDM_RETURN_VAL_IF_FAIL(info->type != 0, TDM_ERROR_INVALID_PARAMETER);
 427
 428         _pthread_mutex_lock(&private_display->lock);
 429
 430         if (!func_capture->capture_set_info) {
 431                 /* LCOV_EXCL_START */
 432                 _pthread_mutex_unlock(&private_display->lock);
 433                 TDM_DBG("failed: not implemented!!");
 434                 return TDM_ERROR_NOT_IMPLEMENTED;
 435                 /* LCOV_EXCL_STOP */
 436         }
 437
 438         if (info->type == TDM_CAPTURE_TYPE_STREAM && info->frequency == 0) {
 439                 tdm_private_output *private_output = private_capture->private_output;
 440                 info->frequency = private_output->current_mode->vrefresh;
 441         }
 442
 443         TDM_INFO("capture(%p) info: dst(%dx%d %d,%d %dx%d %c%c%c%c) trans(%d) type(%d) freq(%d) flags(%x)",
 444                          private_capture,
 445                          info->dst_config.size.h, info->dst_config.size.v,
 446                          info->dst_config.pos.x, info->dst_config.pos.y,
 447                          info->dst_config.pos.w, info->dst_config.pos.h,
 448                          FOURCC_STR(info->dst_config.format),
 449                          info->transform, info->type, info->frequency, info->flags);
 450
 451         ret = func_capture->capture_set_info(private_capture->capture_backend, info);
 452         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 453
 454         private_capture->info = *info;
 455
 456         _pthread_mutex_unlock(&private_display->lock);
 457
 458         return ret;
 459 }
 460
 461 EXTERN tdm_error
 462 tdm_capture_set_done_handler(tdm_capture *capture, tdm_capture_done_handler func, void *user_data)
 463 {
 464         tdm_private_display *private_display;
 465         tdm_private_capture *private_capture;
 466         tdm_error ret = TDM_ERROR_NONE;
 467
 468         TDM_RETURN_VAL_IF_FAIL(capture != NULL, TDM_ERROR_INVALID_PARAMETER);
 469
 470         private_capture = (tdm_private_capture*)capture;
 471         private_display = private_capture->private_display;
 472
 473         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 474
 475         _pthread_mutex_lock(&private_display->lock);
 476
 477         private_capture->done_func = func;
 478         private_capture->done_user_data = user_data;
 479
 480         _pthread_mutex_unlock(&private_display->lock);
 481
 482         return ret;
 483 }
 484
 485 EXTERN tdm_error
 486 tdm_capture_attach(tdm_capture *capture, tbm_surface_h buffer)
 487 {
 488         tdm_capture_private_buffer *capture_buffer;
 489
 490         CAPTURE_FUNC_ENTRY();
 491
 492         TDM_RETURN_VAL_IF_FAIL(buffer != NULL, TDM_ERROR_INVALID_PARAMETER);
 493
 494         _pthread_mutex_lock(&private_display->lock);
 495
 496         if (!func_capture->capture_attach) {
 497                 /* LCOV_EXCL_START */
 498                 _pthread_mutex_unlock(&private_display->lock);
 499                 TDM_DBG("failed: not implemented!!");
 500                 return TDM_ERROR_NOT_IMPLEMENTED;
 501                 /* LCOV_EXCL_STOP */
 502         }
 503
 504         if (tdm_display_check_module_abi(private_display, 1, 2) &&
 505                 private_display->caps_capture.max_attach_count > 0) {
 506                 /* LCOV_EXCL_START */
 507                 int length = LIST_LENGTH(&private_capture->pending_buffer_list) +
 508                                          LIST_LENGTH(&private_capture->buffer_list);
 509                 if (length >= private_display->caps_capture.max_attach_count) {
 510                         _pthread_mutex_unlock(&private_display->lock);
 511                         TDM_DBG("failed: too many attached!! max_attach_count(%d)",
 512                                         private_display->caps_capture.max_attach_count);
 513                         return TDM_ERROR_BAD_REQUEST;
 514                 }
 515                 /* LCOV_EXCL_STOP */
 516         }
 517
 518         capture_buffer = calloc(1, sizeof * capture_buffer);
 519         if (!capture_buffer) {
 520                 /* LCOV_EXCL_START */
 521                 _pthread_mutex_unlock(&private_display->lock);
 522                 TDM_ERR("alloc failed");
 523                 return TDM_ERROR_OUT_OF_MEMORY;
 524                 /* LCOV_EXCL_STOP */
 525         }
 526
 527         ret = func_capture->capture_attach(private_capture->capture_backend, buffer);
 528         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 529
 530         if (ret != TDM_ERROR_NONE) {
 531                 /* LCOV_EXCL_START */
 532                 free(capture_buffer);
 533                 _pthread_mutex_unlock(&private_display->lock);
 534                 TDM_ERR("attach failed");
 535                 return ret;
 536                 /* LCOV_EXCL_STOP */
 537         }
 538
 539         LIST_ADDTAIL(&capture_buffer->link, &private_capture->pending_buffer_list);
 540         capture_buffer->buffer = tdm_buffer_ref_backend(buffer);
 541
 542         if (tdm_debug_module & TDM_DEBUG_BUFFER) {
 543                 TDM_INFO("capture(%p) attached:", private_capture);
 544                 tdm_buffer_list_dump(&private_capture->buffer_list);
 545         }
 546
 547         _pthread_mutex_unlock(&private_display->lock);
 548
 549         return ret;
 550 }
 551
 552 EXTERN tdm_error
 553 tdm_capture_commit(tdm_capture *capture)
 554 {
 555         tdm_capture_private_buffer *b = NULL, *bb = NULL;
 556         tdm_private_output *private_output;
 557         struct list_head commit_buffer_list;
 558
 559         CAPTURE_FUNC_ENTRY();
 560
 561         _pthread_mutex_lock(&private_display->lock);
 562
 563         private_output = private_capture->private_output;
 564         if (private_output->current_dpms_value > TDM_OUTPUT_DPMS_ON) {
 565                 TDM_ERR("output(%d) dpms: %s", private_output->pipe,
 566                                 tdm_dpms_str(private_output->current_dpms_value));
 567                 _pthread_mutex_unlock(&private_display->lock);
 568                 return TDM_ERROR_BAD_REQUEST;
 569         }
 570
 571         if (!func_capture->capture_commit) {
 572                 /* LCOV_EXCL_START */
 573                 _pthread_mutex_unlock(&private_display->lock);
 574                 TDM_DBG("failed: not implemented!!");
 575                 return TDM_ERROR_NOT_IMPLEMENTED;
 576                 /* LCOV_EXCL_STOP */
 577         }
 578
 579         LIST_INITHEAD(&commit_buffer_list);
 580
 581         LIST_FOR_EACH_ENTRY_SAFE(b, bb, &private_capture->pending_buffer_list, link) {
 582                 LIST_DEL(&b->link);
 583                 LIST_ADDTAIL(&b->link, &private_capture->buffer_list);
 584                 LIST_ADDTAIL(&b->commit_link, &commit_buffer_list);
 585         }
 586
 587         ret = func_capture->capture_commit(private_capture->capture_backend);
 588         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 589
 590         LIST_FOR_EACH_ENTRY_SAFE(b, bb, &commit_buffer_list, commit_link) {
 591                 LIST_DELINIT(&b->commit_link);
 592
 593                 if (!_tdm_capture_find_buffer(&private_capture->buffer_list, b))
 594                         continue;
 595
 596                 if (ret != TDM_ERROR_NONE) {
 597                         /* LCOV_EXCL_START */
 598                         /* Not to call the user release handler when failed.
 599                          * Do we have to call this function here really?
 600                          * User better use set_done_handler to know when pp is done. Using
 601                          * buffer_release_handler is not good.
 602                          */
 603                         tdm_buffer_remove_release_handler_internal(b->buffer);
 604
 605                         _pthread_mutex_unlock(&private_display->lock);
 606                         tdm_buffer_unref_backend(b->buffer);
 607                         _pthread_mutex_lock(&private_display->lock);
 608                         LIST_DEL(&b->link);
 609
 610                         free(b);
 611                         /* LCOV_EXCL_STOP */
 612                 }
 613         }
 614
 615         _pthread_mutex_unlock(&private_display->lock);
 616
 617         return ret;
 618 }