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 <boram1288.park@samsung.com>
  13  *
  14  * Permission is hereby granted, free of charge, to any person obtaining a
  15  * copy of this software and associated documentation files (the
  16  * "Software"), to deal in the Software without restriction, including
  17  * without limitation the rights to use, copy, modify, merge, publish,
  18  * distribute, sub license, and/or sell copies of the Software, and to
  19  * permit persons to whom the Software is furnished to do so, subject to
  20  * the following conditions:
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  27  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  29  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  30  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  31  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  32  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33  *
  34 **************************************************************************/
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include "config.h"
  38 #endif
  39
  40 #include "tdm_private.h"
  41
  42 #define CAPTURE_FUNC_ENTRY() \
  43         tdm_func_capture *func_capture; \
  44         tdm_private_display *private_display; \
  45         tdm_private_module *private_module; \
  46         tdm_private_capture *private_capture; \
  47         tdm_error ret = TDM_ERROR_NONE; \
  48         TDM_RETURN_VAL_IF_FAIL(capture != NULL, TDM_ERROR_INVALID_PARAMETER); \
  49         private_capture = (tdm_private_capture*)capture; \
  50         private_display = private_capture->private_display; \
  51         private_module = private_capture->private_module; \
  52         func_capture = &private_module->func_capture
  53
  54 static void
  55 _tdm_capture_print_list(struct list_head *list)
  56 {
  57         tdm_capture_private_buffer *b = NULL;
  58         char str[512], *p;
  59         int len = sizeof(str);
  60
  61         TDM_RETURN_IF_FAIL(list != NULL);
  62
  63         str[0] = '\0';
  64         p = str;
  65         LIST_FOR_EACH_ENTRY(b, list, link) {
  66                 if (len > 0) {
  67                         tbm_bo bo = tbm_surface_internal_get_bo(b->buffer, 0);
  68                         int flags = tbm_bo_get_flags(bo);
  69                         int l = snprintf(p, len, " (%p[bo_flags:%x])", b->buffer, flags);
  70                         p += l;
  71                         len -= l;
  72                 } else
  73                         break;
  74         }
  75
  76         TDM_INFO("\t %s", str);
  77 }
  78
  79 static tdm_capture_private_buffer *
  80 _tdm_capture_find_tbm_buffer(struct list_head *list, tbm_surface_h buffer)
  81 {
  82         tdm_capture_private_buffer *b = NULL, *bb = NULL;
  83
  84         LIST_FOR_EACH_ENTRY_SAFE(b, bb, list, link) {
  85                 if (b->buffer == buffer)
  86                         return b;
  87         }
  88
  89         return NULL;
  90 }
  91
  92 static tdm_capture_private_buffer *
  93 _tdm_capture_find_buffer(struct list_head *list, tdm_capture_private_buffer *capture_buffer)
  94 {
  95         tdm_capture_private_buffer *b = NULL, *bb = NULL;
  96
  97         LIST_FOR_EACH_ENTRY_SAFE(b, bb, list, link) {
  98                 if (b == capture_buffer)
  99                         return b;
 100         }
 101
 102         return NULL;
 103 }
 104
 105 static void
 106 _tdm_capture_thread_cb_done(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data)
 107 {
 108         tdm_thread_cb_capture_done *capture_done = (tdm_thread_cb_capture_done *)cb_base;
 109         tdm_private_capture *private_capture = object;
 110         tdm_capture_private_buffer *capture_buffer = NULL, *first_entry = NULL;
 111         tbm_surface_h buffer;
 112
 113         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 114
 115         assert(private_capture->owner_tid == syscall(SYS_gettid));
 116
 117         buffer = capture_done->buffer;
 118
 119         if (tdm_debug_dump & TDM_DUMP_FLAG_CAPTURE) {
 120                 /* LCOV_EXCL_START */
 121                 char str[TDM_PATH_LEN];
 122                 static int i;
 123                 snprintf(str, TDM_PATH_LEN, "capture_%03d", i++);
 124                 tdm_helper_dump_buffer_str(buffer, tdm_debug_dump_dir, str);
 125                 /* LCOV_EXCL_STOP */
 126         }
 127
 128         if (tdm_debug_module & TDM_DEBUG_BUFFER)
 129                 TDM_INFO("capture(%p) done: %p", private_capture, buffer);
 130
 131         if (tdm_ttrace_module & TDM_TTRACE_CAPTURE) {
 132                 tbm_bo bo = tbm_surface_internal_get_bo(buffer, 0);
 133                 TDM_TRACE_ASYNC_END((intptr_t)private_capture, "[CAPTURE] %d", tbm_bo_export(bo));
 134         }
 135
 136         if (!LIST_IS_EMPTY(&private_capture->buffer_list)) {
 137                 first_entry = container_of((&private_capture->buffer_list)->next, capture_buffer, link);
 138                 if (first_entry->buffer != buffer)
 139                         TDM_ERR("buffer(%p) is skipped", first_entry->buffer);
 140         }
 141
 142         if ((capture_buffer = _tdm_capture_find_tbm_buffer(&private_capture->buffer_list, buffer))) {
 143                 LIST_DEL(&capture_buffer->link);
 144                 LIST_DELINIT(&capture_buffer->commit_link);
 145
 146                 _pthread_mutex_unlock(&private_display->lock);
 147                 if (private_capture->done_func)
 148                         private_capture->done_func(capture_buffer, buffer, private_capture->done_user_data);
 149                 tdm_buffer_unref_backend(buffer);
 150                 _pthread_mutex_lock(&private_display->lock);
 151
 152                 free(capture_buffer);
 153         }
 154 }
 155
 156 static void
 157 _tdm_capture_cb_done(tdm_capture *capture_module, tbm_surface_h buffer, void *user_data)
 158 {
 159         tdm_private_capture *private_capture = user_data;
 160         tdm_thread_cb_capture_done capture_done;
 161         tdm_error ret;
 162
 163         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 164
 165         memset(&capture_done, 0, sizeof capture_done);
 166         capture_done.base.type = TDM_THREAD_CB_CAPTURE_DONE;
 167         capture_done.base.length = sizeof capture_done;
 168         capture_done.base.object_stamp = private_capture->stamp;
 169         capture_done.base.data = NULL;
 170         capture_done.base.sync = 0;
 171         capture_done.buffer = buffer;
 172
 173         ret = tdm_thread_cb_call(private_capture, &capture_done.base, 1);
 174         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 175 }
 176
 177 static void *
 178 _tdm_capture_find_object(tdm_private_display *private_display, double stamp)
 179 {
 180         tdm_private_module *private_module = NULL;
 181         tdm_private_capture *private_capture = NULL;
 182
 183         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), NULL);
 184
 185         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 186                 LIST_FOR_EACH_ENTRY(private_capture, &private_module->capture_list, display_link) {
 187                         if (private_capture->stamp == stamp)
 188                                 return private_capture;
 189                 }
 190         }
 191
 192         return NULL;
 193 }
 194
 195 INTERN tdm_error
 196 tdm_capture_init(tdm_private_display *private_display)
 197 {
 198         tdm_thread_cb_set_find_func(TDM_THREAD_CB_CAPTURE_DONE, _tdm_capture_find_object);
 199
 200         return TDM_ERROR_NONE;
 201 }
 202
 203 INTERN tdm_private_capture *
 204 tdm_capture_create_output_internal(tdm_private_output *private_output,
 205                                                                    tdm_error *error)
 206 {
 207         tdm_private_display *private_display = private_output->private_display;
 208         tdm_private_module *private_module = private_output->private_module;
 209         tdm_func_output *func_output = &private_module->func_output;
 210         tdm_func_capture *func_capture = &private_module->func_capture;
 211         tdm_private_capture *private_capture = NULL;
 212         tdm_capture *capture_module = NULL;
 213         tdm_error ret = TDM_ERROR_NONE;
 214
 215         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), NULL);
 216
 217         if (!(private_module->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE)) {
 218                 /* LCOV_EXCL_START */
 219                 TDM_ERR("backend(%s) no capture capability", private_module->module_data->name);
 220                 if (error)
 221                         *error = TDM_ERROR_NO_CAPABILITY;
 222                 return NULL;
 223                 /* LCOV_EXCL_STOP */
 224         }
 225
 226         if (!(private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)) {
 227                 /* LCOV_EXCL_START */
 228                 TDM_ERR("backend(%s) no output capture capability", private_module->module_data->name);
 229                 if (error)
 230                         *error = TDM_ERROR_NO_CAPABILITY;
 231                 return NULL;
 232                 /* LCOV_EXCL_STOP */
 233         }
 234
 235         capture_module = func_output->output_create_capture(
 236                                                   private_output->output_backend, &ret);
 237         if (ret != TDM_ERROR_NONE) {
 238                 /* LCOV_EXCL_START */
 239                 if (error)
 240                         *error = ret;
 241                 return NULL;
 242                 /* LCOV_EXCL_STOP */
 243         }
 244
 245         private_capture = calloc(1, sizeof(tdm_private_capture));
 246         if (!private_capture) {
 247                 /* LCOV_EXCL_START */
 248                 TDM_ERR("failed: alloc memory");
 249                 func_capture->capture_destroy(capture_module);
 250                 if (error)
 251                         *error = TDM_ERROR_OUT_OF_MEMORY;
 252                 return NULL;
 253                 /* LCOV_EXCL_STOP */
 254         }
 255
 256         ret = tdm_thread_cb_add(private_capture, TDM_THREAD_CB_CAPTURE_DONE, NULL, _tdm_capture_thread_cb_done, NULL);
 257         if (ret != TDM_ERROR_NONE) {
 258                 TDM_ERR("capture tdm_thread_cb_add failed");
 259                 func_capture->capture_destroy(capture_module);
 260                 free(private_capture);
 261                 if (error)
 262                         *error = ret;
 263                 return NULL;
 264         }
 265
 266         ret = func_capture->capture_set_done_handler(capture_module, _tdm_capture_cb_done, private_capture);
 267         if (ret != TDM_ERROR_NONE) {
 268                 /* LCOV_EXCL_START */
 269                 TDM_ERR("capture(%p) set capture_done_handler failed", private_capture);
 270                 func_capture->capture_destroy(capture_module);
 271                 free(private_capture);
 272                 if (error)
 273                         *error = ret;
 274                 return NULL;
 275                 /* LCOV_EXCL_STOP */
 276         }
 277
 278         private_capture->stamp = tdm_helper_get_time();
 279         while (_tdm_capture_find_object(private_display, private_capture->stamp))
 280                 private_capture->stamp++;
 281
 282         LIST_ADD(&private_capture->link, &private_output->capture_list);
 283         LIST_ADD(&private_capture->display_link, &private_module->capture_list);
 284
 285         private_capture->private_module = private_module;
 286
 287         private_capture->target = TDM_CAPTURE_TARGET_OUTPUT;
 288         private_capture->private_display = private_display;
 289         private_capture->private_output = private_output;
 290         private_capture->private_layer = NULL;
 291         private_capture->capture_module = capture_module;
 292         private_capture->owner_tid = syscall(SYS_gettid);
 293
 294         LIST_INITHEAD(&private_capture->pending_buffer_list);
 295         LIST_INITHEAD(&private_capture->buffer_list);
 296
 297         TDM_DBG("capture(%p) create", private_capture);
 298
 299         if (error)
 300                 *error = TDM_ERROR_NONE;
 301
 302         return private_capture;
 303 }
 304
 305 /* LCOV_EXCL_START */
 306 INTERN tdm_private_capture *
 307 tdm_capture_create_layer_internal(tdm_private_layer *private_layer,
 308                                                                   tdm_error *error)
 309 {
 310         tdm_private_output *private_output = private_layer->private_output;
 311         tdm_private_module *private_module = private_layer->private_module;
 312         tdm_private_display *private_display = private_output->private_display;
 313         tdm_func_layer *func_layer = &private_module->func_layer;
 314         tdm_func_capture *func_capture = &private_module->func_capture;
 315         tdm_private_capture *private_capture = NULL;
 316         tdm_capture *capture_module = NULL;
 317         tdm_error ret = TDM_ERROR_NONE;
 318
 319         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), NULL);
 320
 321         if (!(private_module->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE)) {
 322                 TDM_ERR("backend(%s) no capture capability", private_module->module_data->name);
 323                 if (error)
 324                         *error = TDM_ERROR_NO_CAPABILITY;
 325                 return NULL;
 326         }
 327
 328         if (!(private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)) {
 329                 TDM_ERR("backend(%s) no layer capture capability", private_module->module_data->name);
 330                 if (error)
 331                         *error = TDM_ERROR_NO_CAPABILITY;
 332                 return NULL;
 333         }
 334
 335         capture_module = func_layer->layer_create_capture(private_layer->layer_backend,
 336                                           &ret);
 337         if (ret != TDM_ERROR_NONE)
 338                 return NULL;
 339
 340         private_capture = calloc(1, sizeof(tdm_private_capture));
 341         if (!private_capture) {
 342                 TDM_ERR("failed: alloc memory");
 343                 func_capture->capture_destroy(capture_module);
 344                 if (error)
 345                         *error = TDM_ERROR_OUT_OF_MEMORY;
 346                 return NULL;
 347         }
 348
 349         private_capture->stamp = tdm_helper_get_time();
 350         while (_tdm_capture_find_object(private_display, private_capture->stamp))
 351                 private_capture->stamp++;
 352
 353         LIST_ADD(&private_capture->link, &private_layer->capture_list);
 354         LIST_ADD(&private_capture->display_link, &private_module->capture_list);
 355
 356         private_capture->private_module = private_module;
 357
 358         private_capture->target = TDM_CAPTURE_TARGET_LAYER;
 359         private_capture->private_display = private_display;
 360         private_capture->private_output = private_output;
 361         private_capture->private_layer = private_layer;
 362         private_capture->capture_module = capture_module;
 363         private_capture->owner_tid = syscall(SYS_gettid);
 364
 365         LIST_INITHEAD(&private_capture->pending_buffer_list);
 366         LIST_INITHEAD(&private_capture->buffer_list);
 367
 368         TDM_DBG("capture(%p) create", private_capture);
 369
 370         if (error)
 371                 *error = TDM_ERROR_NONE;
 372
 373         return private_capture;
 374 }
 375 /* LCOV_EXCL_STOP */
 376
 377 INTERN void
 378 tdm_capture_destroy_internal(tdm_private_capture *private_capture)
 379 {
 380         tdm_private_display *private_display;
 381         tdm_private_module *private_module;
 382         tdm_func_capture *func_capture;
 383         tdm_capture_private_buffer *b = NULL, *bb = NULL;
 384         struct list_head clone_list;
 385
 386         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 387
 388         if (!private_capture)
 389                 return;
 390
 391         private_display = private_capture->private_display;
 392
 393         tdm_thread_cb_remove(private_capture, TDM_THREAD_CB_CAPTURE_DONE, NULL, _tdm_capture_thread_cb_done, NULL);
 394
 395         LIST_DEL(&private_capture->link);
 396         LIST_DEL(&private_capture->display_link);
 397
 398         private_module = private_capture->private_module;
 399         func_capture = &private_module->func_capture;
 400         func_capture->capture_destroy(private_capture->capture_module);
 401
 402         if (!LIST_IS_EMPTY(&private_capture->pending_buffer_list)) {
 403                 TDM_WRN("capture(%p) not finished:", private_capture);
 404                 _tdm_capture_print_list(&private_capture->pending_buffer_list);
 405
 406                 LIST_INITHEAD(&clone_list);
 407                 LIST_FOR_EACH_ENTRY_SAFE(b, bb, &private_capture->pending_buffer_list, link) {
 408                         LIST_DEL(&b->link);
 409                         LIST_ADDTAIL(&b->link, &clone_list);
 410                 }
 411
 412                 _pthread_mutex_unlock(&private_display->lock);
 413                 LIST_FOR_EACH_ENTRY_SAFE(b, bb, &clone_list, link) {
 414                         LIST_DEL(&b->link);
 415
 416                         if (tdm_ttrace_module & TDM_TTRACE_CAPTURE) {
 417                                 tbm_bo bo = tbm_surface_internal_get_bo(b->buffer, 0);
 418                                 TDM_TRACE_ASYNC_END((intptr_t)private_capture, "[CAPTURE] %d", tbm_bo_export(bo));
 419                         }
 420
 421                         tdm_buffer_unref_backend(b->buffer);
 422                         free(b);
 423                 }
 424                 _pthread_mutex_lock(&private_display->lock);
 425         }
 426
 427         if (!LIST_IS_EMPTY(&private_capture->buffer_list)) {
 428                 TDM_WRN("capture(%p) not finished:", private_capture);
 429                 _tdm_capture_print_list(&private_capture->buffer_list);
 430
 431                 LIST_INITHEAD(&clone_list);
 432                 LIST_FOR_EACH_ENTRY_SAFE(b, bb, &private_capture->buffer_list, link) {
 433                         LIST_DEL(&b->link);
 434                         LIST_ADDTAIL(&b->link, &clone_list);
 435                 }
 436
 437                 _pthread_mutex_unlock(&private_display->lock);
 438                 LIST_FOR_EACH_ENTRY_SAFE(b, bb, &clone_list, link) {
 439                         LIST_DEL(&b->link);
 440
 441                         if (tdm_ttrace_module & TDM_TTRACE_CAPTURE) {
 442                                 tbm_bo bo = tbm_surface_internal_get_bo(b->buffer, 0);
 443                                 TDM_TRACE_ASYNC_END((intptr_t)private_capture, "[CAPTURE] %d", tbm_bo_export(bo));
 444                         }
 445
 446                         tdm_buffer_unref_backend(b->buffer);
 447                         free(b);
 448                 }
 449                 _pthread_mutex_lock(&private_display->lock);
 450         }
 451
 452         private_capture->stamp = 0;
 453         free(private_capture);
 454 }
 455
 456 EXTERN void
 457 tdm_capture_destroy(tdm_capture *capture)
 458 {
 459         tdm_private_capture *private_capture = capture;
 460         tdm_private_display *private_display;
 461
 462         if (!private_capture)
 463                 return;
 464
 465         TDM_DBG("capture(%p) destroy", private_capture);
 466
 467         private_display = private_capture->private_display;
 468
 469         _pthread_mutex_lock(&private_display->lock);
 470         tdm_capture_destroy_internal(private_capture);
 471         _pthread_mutex_unlock(&private_display->lock);
 472 }
 473
 474 EXTERN tdm_error
 475 tdm_capture_set_info(tdm_capture *capture, tdm_info_capture *info)
 476 {
 477         CAPTURE_FUNC_ENTRY();
 478
 479         TDM_RETURN_VAL_IF_FAIL(info != NULL, TDM_ERROR_INVALID_PARAMETER);
 480         TDM_RETURN_VAL_IF_FAIL(info->type != 0, TDM_ERROR_INVALID_PARAMETER);
 481
 482         _pthread_mutex_lock(&private_display->lock);
 483
 484         if (!func_capture->capture_set_info) {
 485                 /* LCOV_EXCL_START */
 486                 _pthread_mutex_unlock(&private_display->lock);
 487                 TDM_DBG("failed: not implemented!!");
 488                 return TDM_ERROR_NOT_IMPLEMENTED;
 489                 /* LCOV_EXCL_STOP */
 490         }
 491
 492         if (info->type == TDM_CAPTURE_TYPE_STREAM && info->frequency == 0) {
 493                 tdm_private_output *private_output = private_capture->private_output;
 494                 info->frequency = private_output->current_mode->vrefresh;
 495         }
 496
 497         TDM_INFO("capture(%p) info: dst(%ux%u %u,%u %ux%u %c%c%c%c) trans(%d) type(%d) freq(%d) flags(%x)",
 498                          private_capture,
 499                          info->dst_config.size.h, info->dst_config.size.v,
 500                          info->dst_config.pos.x, info->dst_config.pos.y,
 501                          info->dst_config.pos.w, info->dst_config.pos.h,
 502                          FOURCC_STR(info->dst_config.format),
 503                          info->transform, info->type, info->frequency, info->flags);
 504
 505         ret = func_capture->capture_set_info(private_capture->capture_module, info);
 506         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 507
 508         private_capture->info = *info;
 509
 510         _pthread_mutex_unlock(&private_display->lock);
 511
 512         return ret;
 513 }
 514
 515 EXTERN tdm_error
 516 tdm_capture_set_done_handler(tdm_capture *capture, tdm_capture_done_handler func, void *user_data)
 517 {
 518         tdm_private_display *private_display;
 519         tdm_private_capture *private_capture;
 520         tdm_error ret = TDM_ERROR_NONE;
 521
 522         TDM_RETURN_VAL_IF_FAIL(capture != NULL, TDM_ERROR_INVALID_PARAMETER);
 523
 524         private_capture = (tdm_private_capture*)capture;
 525         private_display = private_capture->private_display;
 526
 527         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 528
 529         _pthread_mutex_lock(&private_display->lock);
 530
 531         private_capture->done_func = func;
 532         private_capture->done_user_data = user_data;
 533
 534         _pthread_mutex_unlock(&private_display->lock);
 535
 536         return ret;
 537 }
 538
 539 EXTERN tdm_error
 540 tdm_capture_attach(tdm_capture *capture, tbm_surface_h buffer)
 541 {
 542         tdm_capture_private_buffer *capture_buffer;
 543
 544         CAPTURE_FUNC_ENTRY();
 545
 546         TDM_RETURN_VAL_IF_FAIL(buffer != NULL, TDM_ERROR_INVALID_PARAMETER);
 547
 548         _pthread_mutex_lock(&private_display->lock);
 549
 550         if (!func_capture->capture_attach) {
 551                 /* LCOV_EXCL_START */
 552                 _pthread_mutex_unlock(&private_display->lock);
 553                 TDM_DBG("failed: not implemented!!");
 554                 return TDM_ERROR_NOT_IMPLEMENTED;
 555                 /* LCOV_EXCL_STOP */
 556         }
 557
 558         if (tdm_module_check_abi(private_module, 1, 2) &&
 559                 private_module->caps_capture.max_attach_count > 0) {
 560                 /* LCOV_EXCL_START */
 561                 int length = LIST_LENGTH(&private_capture->pending_buffer_list) +
 562                                          LIST_LENGTH(&private_capture->buffer_list);
 563                 if (length >= private_module->caps_capture.max_attach_count) {
 564                         _pthread_mutex_unlock(&private_display->lock);
 565                         TDM_DBG("failed: backend(%s) too many attached!! max_attach_count(%d)",
 566                                         private_module->module_data->name, private_module->caps_capture.max_attach_count);
 567                         return TDM_ERROR_BAD_REQUEST;
 568                 }
 569                 /* LCOV_EXCL_STOP */
 570         }
 571
 572         capture_buffer = calloc(1, sizeof * capture_buffer);
 573         if (!capture_buffer) {
 574                 /* LCOV_EXCL_START */
 575                 _pthread_mutex_unlock(&private_display->lock);
 576                 TDM_ERR("alloc failed");
 577                 return TDM_ERROR_OUT_OF_MEMORY;
 578                 /* LCOV_EXCL_STOP */
 579         }
 580
 581         ret = func_capture->capture_attach(private_capture->capture_module, buffer);
 582         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 583
 584         if (ret != TDM_ERROR_NONE) {
 585                 /* LCOV_EXCL_START */
 586                 free(capture_buffer);
 587                 _pthread_mutex_unlock(&private_display->lock);
 588                 TDM_ERR("attach failed");
 589                 return ret;
 590                 /* LCOV_EXCL_STOP */
 591         }
 592
 593         LIST_ADDTAIL(&capture_buffer->link, &private_capture->pending_buffer_list);
 594         capture_buffer->buffer = tdm_buffer_ref_backend(buffer);
 595
 596         if (tdm_debug_module & TDM_DEBUG_BUFFER) {
 597                 TDM_INFO("capture(%p) attached:", private_capture);
 598                 _tdm_capture_print_list(&private_capture->pending_buffer_list);
 599                 _tdm_capture_print_list(&private_capture->buffer_list);
 600         }
 601
 602         if (tdm_ttrace_module & TDM_TTRACE_CAPTURE) {
 603                 tbm_bo bo = tbm_surface_internal_get_bo(buffer, 0);
 604                 TDM_TRACE_ASYNC_BEGIN((intptr_t)capture, "[CAPTURE] %d", tbm_bo_export(bo));
 605         }
 606
 607         _pthread_mutex_unlock(&private_display->lock);
 608
 609         return ret;
 610 }
 611
 612 EXTERN tdm_error
 613 tdm_capture_commit(tdm_capture *capture)
 614 {
 615         tdm_capture_private_buffer *b = NULL, *bb = NULL;
 616         tdm_private_output *private_output;
 617         struct list_head commit_buffer_list;
 618
 619         CAPTURE_FUNC_ENTRY();
 620
 621         _pthread_mutex_lock(&private_display->lock);
 622
 623         private_output = private_capture->private_output;
 624
 625         /* TODO: possible when standby mode? can't decide it yet. no scenario. */
 626         if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(private_output->current_dpms_value)) {
 627                 TDM_ERR("output(%d) dpms: %s", private_output->pipe,
 628                                 tdm_dpms_str(private_output->current_dpms_value));
 629                 _pthread_mutex_unlock(&private_display->lock);
 630                 return TDM_ERROR_BAD_REQUEST;
 631         }
 632
 633         if (!func_capture->capture_commit) {
 634                 /* LCOV_EXCL_START */
 635                 _pthread_mutex_unlock(&private_display->lock);
 636                 TDM_DBG("failed: not implemented!!");
 637                 return TDM_ERROR_NOT_IMPLEMENTED;
 638                 /* LCOV_EXCL_STOP */
 639         }
 640
 641         LIST_INITHEAD(&commit_buffer_list);
 642
 643         LIST_FOR_EACH_ENTRY_SAFE(b, bb, &private_capture->pending_buffer_list, link) {
 644                 LIST_DEL(&b->link);
 645                 LIST_ADDTAIL(&b->link, &private_capture->buffer_list);
 646                 LIST_ADDTAIL(&b->commit_link, &commit_buffer_list);
 647         }
 648
 649         if (tdm_debug_module & TDM_DEBUG_BUFFER) {
 650                 TDM_INFO("capture(%p) committed:", private_capture);
 651                 _tdm_capture_print_list(&private_capture->pending_buffer_list);
 652                 _tdm_capture_print_list(&private_capture->buffer_list);
 653         }
 654
 655         ret = func_capture->capture_commit(private_capture->capture_module);
 656         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 657
 658         LIST_FOR_EACH_ENTRY_SAFE(b, bb, &commit_buffer_list, commit_link) {
 659                 LIST_DELINIT(&b->commit_link);
 660
 661                 if (!_tdm_capture_find_buffer(&private_capture->buffer_list, b))
 662                         continue;
 663
 664                 if (ret != TDM_ERROR_NONE) {
 665                         /* LCOV_EXCL_START */
 666
 667                         _pthread_mutex_unlock(&private_display->lock);
 668                         tdm_buffer_unref_backend(b->buffer);
 669                         _pthread_mutex_lock(&private_display->lock);
 670                         LIST_DEL(&b->link);
 671
 672                         free(b);
 673                         /* LCOV_EXCL_STOP */
 674                 }
 675         }
 676
 677         _pthread_mutex_unlock(&private_display->lock);
 678
 679         return ret;
 680 }