src/tdm_hwc.c

   1 /**************************************************************************
   2  *
   3  * libtdm
   4  *
   5  * Copyright 2018 Samsung Electronics co., Ltd. All Rights Reserved.
   6  *
   7  * Contact: SooChan Lim <sc1.lim@samsung.com>,
   8  *          Boram Park <boram1288.park@samsung.com>,
   9  *          Changyeon Lee <cyeon.lee@samsung.com>,
  10  *          Sangjin Lee <lsj119@samsung.com>
  11  *
  12  * Permission is hereby granted, free of charge, to any person obtaining a
  13  * copy of this software and associated documentation files (the
  14  * "Software"), to deal in the Software without restriction, including
  15  * without limitation the rights to use, copy, modify, merge, publish,
  16  * distribute, sub license, and/or sell copies of the Software, and to
  17  * permit persons to whom the Software is furnished to do so, subject to
  18  * the following conditions:
  19  *
  20  * The above copyright notice and this permission notice (including the
  21  * next paragraph) shall be included in all copies or substantial portions
  22  * of the Software.
  23  *
  24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  25  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  27  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  28  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  29  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  30  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31  *
  32 **************************************************************************/
  33
  34 #ifdef HAVE_CONFIG_H
  35 #include "config.h"
  36 #endif
  37
  38 #include "tdm_private.h"
  39
  40 #define HWC_FUNC_ENTRY() \
  41         tdm_private_display *private_display; \
  42         tdm_private_output *private_output; \
  43         tdm_private_hwc *private_hwc; \
  44         tdm_error ret = TDM_ERROR_NONE; /* default TDM_ERROR_NONE */\
  45         TDM_RETURN_VAL_IF_FAIL(hwc != NULL, TDM_ERROR_INVALID_PARAMETER); \
  46         private_hwc = (tdm_private_hwc*)hwc; \
  47         private_output = private_hwc->private_output; \
  48         TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_INVALID_PARAMETER); \
  49         private_display = private_output->private_display
  50
  51 #define HWC_FUNC_ENTRY_ERROR() \
  52         tdm_private_display *private_display; \
  53         tdm_private_output *private_output; \
  54         tdm_private_hwc *private_hwc; \
  55         tdm_error ret = TDM_ERROR_NONE; /* default TDM_ERROR_NONE */\
  56         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(hwc != NULL, TDM_ERROR_INVALID_PARAMETER, NULL); \
  57         private_hwc = (tdm_private_hwc*)hwc; \
  58         private_output = private_hwc->private_output; \
  59         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(private_output != NULL, TDM_ERROR_INVALID_PARAMETER, NULL); \
  60         private_display = private_output->private_display
  61
  62 #define HWC_FUNC_ENTRY_VOID_RETURN() \
  63         tdm_private_display *private_display; \
  64         tdm_private_output *private_output; \
  65         tdm_private_hwc *private_hwc; \
  66         tdm_error ret = TDM_ERROR_NONE; /* default TDM_ERROR_NONE */\
  67         TDM_RETURN_IF_FAIL(hwc != NULL); \
  68         private_hwc = (tdm_private_hwc*)hwc; \
  69         private_output = private_hwc->private_output; \
  70         TDM_RETURN_IF_FAIL(private_output != NULL); \
  71         private_display = private_output->private_display
  72
  73 static int hwc_use_vblank;
  74 static unsigned int hwc_vblank_fps;
  75
  76 static tdm_private_hwc_window *
  77 _tdm_hwc_find_private_hwc_window(tdm_private_hwc *private_hwc, tdm_hwc_window *hwc_window_backend)
  78 {
  79         tdm_private_hwc_window *private_hwc_window = NULL;
  80
  81         LIST_FOR_EACH_ENTRY(private_hwc_window, &private_hwc->hwc_window_list, link) {
  82                 if (private_hwc_window->hwc_window_backend == hwc_window_backend)
  83                         return private_hwc_window;
  84         }
  85
  86         return NULL;
  87 }
  88
  89 static void
  90 _tdm_hwc_thread_cb_commit(tdm_private_display *private_display, void *object,
  91                                 tdm_thread_cb_base *cb_base, void *user_data)
  92 {
  93         tdm_thread_cb_hwc_commit *hwc_commit = (tdm_thread_cb_hwc_commit *)cb_base;
  94         tdm_private_hwc_commit_handler *hwc_commit_handler = hwc_commit->base.data;
  95         tdm_private_hwc *private_hwc = object;
  96
  97         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
  98
  99         if (!hwc_commit_handler)
 100                 return;
 101
 102         assert(hwc_commit_handler->owner_tid == syscall(SYS_gettid));
 103
 104         tdm_thread_cb_remove(private_hwc, TDM_THREAD_CB_HWC_COMMIT, hwc_commit_handler,
 105                                         _tdm_hwc_thread_cb_commit, NULL);
 106
 107         LIST_DEL(&hwc_commit_handler->link);
 108
 109         if (tdm_debug_module & TDM_DEBUG_COMMIT) {
 110                 TDM_INFO("----------------------------------------- hwc(%d) committed", private_hwc->index);
 111                 TDM_INFO("handler(%p)", hwc_commit_handler);
 112         }
 113
 114         /* LCOV_EXCL_START */
 115         if (private_display->print_fps) {
 116                 double curr = tdm_helper_get_time();
 117                 if (private_hwc->fps_stamp == 0) {
 118                         private_hwc->fps_stamp = curr;
 119                 } else if ((curr - private_hwc->fps_stamp) > 1.0) {
 120                         TDM_INFO("hwc(%p,%d) fps: %d",
 121                                          private_hwc, private_hwc->index, private_hwc->fps_count);
 122                         private_hwc->fps_count = 0;
 123                         private_hwc->fps_stamp = curr;
 124                 } else
 125                         private_hwc->fps_count++;
 126         } else if (private_hwc->fps_stamp != 0) {
 127                 private_hwc->fps_stamp = 0;
 128                 private_hwc->fps_count = 0;
 129         }
 130         /* LCOV_EXCL_STOP */
 131
 132         if (hwc_commit_handler->func) {
 133                 _pthread_mutex_unlock(&private_display->lock);
 134                 hwc_commit_handler->func(private_hwc,
 135                                                                         hwc_commit->sequence,
 136                                                                         hwc_commit->tv_sec,
 137                                                                         hwc_commit->tv_usec,
 138                                                                         hwc_commit_handler->user_data);
 139                 _pthread_mutex_lock(&private_display->lock);
 140         }
 141
 142         free(hwc_commit_handler);
 143
 144         if (tdm_debug_module & TDM_DEBUG_COMMIT)
 145                 TDM_INFO("-----------------------------------------...");
 146 }
 147
 148 static void
 149 _tdm_hwc_cb_commit(tdm_hwc *hwc_backend, unsigned int sequence,
 150                                           unsigned int tv_sec, unsigned int tv_usec, void *user_data)
 151 {
 152         tdm_private_hwc_commit_handler *hwc_commit_handler = user_data;
 153         tdm_private_hwc *private_hwc;
 154         tdm_thread_cb_hwc_commit hwc_commit;
 155         tdm_error ret;
 156
 157         if (hwc_commit_handler && hwc_commit_handler->use_vblank)
 158                 return;
 159
 160         if (hwc_commit_handler)
 161                 private_hwc = hwc_commit_handler->private_hwc;
 162         else
 163                 private_hwc = tdm_display_find_private_hwc(tdm_display_get(), hwc_backend);
 164
 165         memset(&hwc_commit, 0, sizeof hwc_commit);
 166         hwc_commit.base.type = TDM_THREAD_CB_HWC_COMMIT;
 167         hwc_commit.base.length = sizeof hwc_commit;
 168         hwc_commit.base.object_stamp = private_hwc->stamp;
 169         hwc_commit.base.data = hwc_commit_handler;
 170         hwc_commit.base.sync = 0;
 171         hwc_commit.sequence = sequence;
 172         hwc_commit.tv_sec = tv_sec;
 173         hwc_commit.tv_usec = tv_usec;
 174
 175         ret = tdm_thread_cb_call(private_hwc, &hwc_commit.base, 1);
 176         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 177 }
 178
 179 static void
 180 _tdm_hwc_got_wait_vblank(unsigned int sequence,
 181                                                  unsigned int tv_sec, unsigned int tv_usec, void *user_data)
 182 {
 183         tdm_private_hwc_commit_handler *hwc_commit_handler = user_data;
 184         tdm_private_hwc *private_hwc;
 185         tdm_thread_cb_hwc_commit hwc_commit;
 186
 187         private_hwc = hwc_commit_handler->private_hwc;
 188         private_hwc->private_output->layer_waiting_vblank = 0;
 189
 190         memset(&hwc_commit, 0, sizeof hwc_commit);
 191         hwc_commit.base.type = TDM_THREAD_CB_HWC_COMMIT;
 192         hwc_commit.base.length = sizeof hwc_commit;
 193         hwc_commit.base.object_stamp = private_hwc->stamp;
 194         hwc_commit.base.data = hwc_commit_handler;
 195         hwc_commit.base.sync = 0;
 196         hwc_commit.sequence = sequence;
 197         hwc_commit.tv_sec = tv_sec;
 198         hwc_commit.tv_usec = tv_usec;
 199
 200         _tdm_hwc_thread_cb_commit(private_hwc->private_output->private_display, private_hwc, &hwc_commit.base, user_data);
 201 }
 202
 203 static void
 204 _tdm_hwc_cb_wait_vblank(tdm_vblank *vblank, tdm_error error, unsigned int sequence,
 205                                                 unsigned int tv_sec, unsigned int tv_usec, void *user_data)
 206 {
 207         tdm_private_hwc_commit_handler *hwc_commit_handler = user_data;
 208         tdm_private_output *private_output = NULL;
 209         tdm_private_display *private_display;
 210
 211         if (!hwc_commit_handler->use_vblank)
 212                 return;
 213
 214         TDM_RETURN_IF_FAIL(hwc_commit_handler != NULL);
 215
 216         private_output = hwc_commit_handler->private_hwc->private_output;
 217         TDM_RETURN_IF_FAIL(private_output != NULL);
 218
 219         private_display = private_output->private_display;
 220
 221         _pthread_mutex_lock(&private_display->lock);
 222
 223         _tdm_hwc_got_wait_vblank(sequence, tv_sec, tv_usec, user_data);
 224
 225         _pthread_mutex_unlock(&private_display->lock);
 226 }
 227
 228 static tdm_error
 229 _tdm_hwc_vblank(tdm_private_hwc *private_hwc, tdm_private_hwc_commit_handler *hwc_commit_handler)
 230 {
 231         tdm_private_display *private_display;
 232         tdm_private_output *private_output;
 233         tdm_error ret = TDM_ERROR_NONE;
 234
 235         private_output = private_hwc->private_output;
 236         TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_INVALID_PARAMETER);
 237         private_display = private_output->private_display;
 238
 239         if (!private_output->vblank) {
 240                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 241                 _pthread_mutex_unlock(&private_display->lock);
 242                 private_output->vblank = tdm_vblank_create(private_display, private_output, NULL);
 243                 _pthread_mutex_lock(&private_display->lock);
 244                 TDM_RETURN_VAL_IF_FAIL(private_output->vblank != NULL, TDM_ERROR_OPERATION_FAILED);
 245         }
 246
 247         if (!private_output->layer_waiting_vblank) {
 248                 ret = tdm_vblank_set_fps(private_output->vblank, hwc_vblank_fps);
 249                 if (ret != TDM_ERROR_NONE)
 250                         goto done;
 251
 252                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 253                 _pthread_mutex_unlock(&private_display->lock);
 254                 ret = tdm_vblank_wait(private_output->vblank, 0, 0, 1, _tdm_hwc_cb_wait_vblank, hwc_commit_handler);
 255                 _pthread_mutex_lock(&private_display->lock);
 256                 if (ret != TDM_ERROR_NONE) {
 257                         if (!TDM_OUTPUT_DPMS_VSYNC_IS_OFF(private_output->current_dpms_value))
 258                                 goto done;
 259                 }
 260
 261                 hwc_commit_handler->use_vblank = 1;
 262                 private_output->layer_waiting_vblank = 1;
 263         }
 264
 265 done:
 266         return ret;
 267 }
 268
 269 INTERN tdm_error
 270 tdm_hwc_init(tdm_private_display *private_display)
 271 {
 272         tdm_thread_cb_set_find_func(TDM_THREAD_CB_HWC_COMMIT, tdm_display_find_hwc_stamp);
 273
 274         return TDM_ERROR_NONE;
 275 }
 276
 277 INTERN void
 278 tdm_hwc_set_vblank(unsigned int fps)
 279 {
 280         hwc_use_vblank = 1;
 281         hwc_vblank_fps = fps;
 282 }
 283
 284 INTERN void
 285 tdm_hwc_unset_vblank(void)
 286 {
 287         hwc_use_vblank = 0;
 288         hwc_vblank_fps = 0;
 289 }
 290
 291 EXTERN tdm_hwc_window *
 292 tdm_hwc_create_window(tdm_hwc *hwc, tdm_error *error)
 293 {
 294         tdm_hwc_window *hwc_window = NULL;
 295
 296         HWC_FUNC_ENTRY_ERROR();
 297
 298         _pthread_mutex_lock(&private_display->lock);
 299
 300         hwc_window = (tdm_hwc_window *)tdm_hwc_window_create_internal(private_hwc, error);
 301
 302         _pthread_mutex_unlock(&private_display->lock);
 303
 304         return hwc_window;
 305 }
 306
 307 EXTERN tdm_error
 308 tdm_hwc_get_video_supported_formats(tdm_hwc *hwc, const tbm_format **formats, int *count)
 309 {
 310         tdm_private_module *private_module;
 311         tdm_func_hwc *func_hwc;
 312
 313         HWC_FUNC_ENTRY();
 314
 315         TDM_RETURN_VAL_IF_FAIL(formats != NULL, TDM_ERROR_INVALID_PARAMETER);
 316         TDM_RETURN_VAL_IF_FAIL(count != NULL, TDM_ERROR_INVALID_PARAMETER);
 317
 318         _pthread_mutex_lock(&private_display->lock);
 319
 320         private_module = private_output->private_module;
 321         func_hwc = &private_module->func_hwc;
 322
 323         if (!func_hwc->hwc_get_video_supported_formats) {
 324                 /* LCOV_EXCL_START */
 325                 _pthread_mutex_unlock(&private_display->lock);
 326                 TDM_WRN("not implemented!!");
 327                 return TDM_ERROR_NOT_IMPLEMENTED;
 328                 /* LCOV_EXCL_STOP */
 329         }
 330
 331         ret = func_hwc->hwc_get_video_supported_formats(private_hwc->hwc_backend, formats, count);
 332
 333         _pthread_mutex_unlock(&private_display->lock);
 334
 335         return ret;
 336 }
 337
 338 EXTERN tdm_error
 339 tdm_hwc_get_video_available_properties(tdm_hwc *hwc, const tdm_prop **props, int *count)
 340 {
 341         tdm_private_module *private_module;
 342         tdm_func_hwc *func_hwc = NULL;
 343
 344         HWC_FUNC_ENTRY();
 345
 346         TDM_RETURN_VAL_IF_FAIL(props != NULL, TDM_ERROR_INVALID_PARAMETER);
 347         TDM_RETURN_VAL_IF_FAIL(count != NULL, TDM_ERROR_INVALID_PARAMETER);
 348
 349         _pthread_mutex_lock(&private_display->lock);
 350
 351         private_module = private_output->private_module;
 352         func_hwc = &private_module->func_hwc;
 353
 354         if (!func_hwc->hwc_get_video_available_properties) {
 355                 /* LCOV_EXCL_START */
 356                 _pthread_mutex_unlock(&private_display->lock);
 357                 TDM_WRN("not implemented!!");
 358                 return TDM_ERROR_NOT_IMPLEMENTED;
 359                 /* LCOV_EXCL_STOP */
 360         }
 361
 362         ret = func_hwc->hwc_get_video_available_properties(private_hwc->hwc_backend, props, count);
 363
 364         _pthread_mutex_unlock(&private_display->lock);
 365
 366         return ret;
 367 }
 368
 369 EXTERN tdm_error
 370 tdm_hwc_get_capabilities(tdm_hwc *hwc, tdm_hwc_capability *capabilities)
 371 {
 372         tdm_private_module *private_module;
 373         tdm_func_hwc *func_hwc;
 374
 375         HWC_FUNC_ENTRY();
 376
 377         _pthread_mutex_lock(&private_display->lock);
 378
 379         private_module = private_output->private_module;
 380         func_hwc = &private_module->func_hwc;
 381
 382         if (!func_hwc->hwc_get_capabilities) {
 383                 _pthread_mutex_unlock(&private_display->lock);
 384                 TDM_WRN("not implemented!!");
 385                 return TDM_ERROR_NOT_IMPLEMENTED;
 386         }
 387
 388         ret = func_hwc->hwc_get_capabilities(private_hwc->hwc_backend, capabilities);
 389
 390         _pthread_mutex_unlock(&private_display->lock);
 391
 392         return ret;
 393 }
 394
 395 EXTERN tdm_error
 396 tdm_hwc_get_available_properties(tdm_hwc *hwc, const tdm_prop **props, int *count)
 397 {
 398         tdm_private_module *private_module;
 399         tdm_func_hwc *func_hwc = NULL;
 400
 401         HWC_FUNC_ENTRY();
 402
 403         TDM_RETURN_VAL_IF_FAIL(props != NULL, TDM_ERROR_INVALID_PARAMETER);
 404         TDM_RETURN_VAL_IF_FAIL(count != NULL, TDM_ERROR_INVALID_PARAMETER);
 405
 406         _pthread_mutex_lock(&private_display->lock);
 407
 408         private_module = private_output->private_module;
 409         func_hwc = &private_module->func_hwc;
 410
 411         if (!func_hwc->hwc_get_available_properties) {
 412                 /* LCOV_EXCL_START */
 413                 _pthread_mutex_unlock(&private_display->lock);
 414                 TDM_WRN("not implemented!!");
 415                 return TDM_ERROR_NOT_IMPLEMENTED;
 416                 /* LCOV_EXCL_STOP */
 417         }
 418
 419         ret = func_hwc->hwc_get_available_properties(private_hwc->hwc_backend, props, count);
 420
 421         _pthread_mutex_unlock(&private_display->lock);
 422
 423         return ret;
 424 }
 425
 426 EXTERN tbm_surface_queue_h
 427 tdm_hwc_get_client_target_buffer_queue(tdm_hwc *hwc, tdm_error *error)
 428 {
 429         tdm_private_module *private_module;
 430         tdm_func_hwc *func_hwc = NULL;
 431         tbm_surface_queue_h queue = NULL;
 432
 433         HWC_FUNC_ENTRY_ERROR();
 434
 435         _pthread_mutex_lock(&private_display->lock);
 436
 437         private_module = private_hwc->private_module;
 438         func_hwc = &private_module->func_hwc;
 439
 440         if (!func_hwc->hwc_get_client_target_buffer_queue) {
 441                 /* LCOV_EXCL_START */
 442                 _pthread_mutex_unlock(&private_display->lock);
 443                 TDM_WRN("not implemented!!");
 444                 return NULL;
 445                 /* LCOV_EXCL_STOP */
 446         }
 447
 448         queue = func_hwc->hwc_get_client_target_buffer_queue(private_hwc->hwc_backend, error);
 449
 450         _pthread_mutex_unlock(&private_display->lock);
 451
 452         return queue;
 453 }
 454
 455 EXTERN tdm_error
 456 tdm_hwc_set_client_target_buffer(tdm_hwc *hwc, tbm_surface_h target_buffer, tdm_region damage)
 457 {
 458         tdm_private_module *private_module;
 459         tdm_func_hwc *func_hwc = NULL;
 460
 461         HWC_FUNC_ENTRY();
 462
 463         _pthread_mutex_lock(&private_display->lock);
 464
 465         if (tdm_debug_dump & TDM_DUMP_FLAG_WINDOW) {
 466                 /* LCOV_EXCL_START */
 467                 char str[TDM_PATH_LEN];
 468                 static int i;
 469                 snprintf(str, TDM_PATH_LEN, "target_window_%03d", i++);
 470                 tdm_helper_dump_buffer_str(target_buffer, tdm_debug_dump_dir, str);
 471                 /* LCOV_EXCL_STOP */
 472         }
 473
 474         private_module = private_hwc->private_module;
 475         func_hwc = &private_module->func_hwc;
 476
 477         if (!func_hwc->hwc_set_client_target_buffer) {
 478                 /* LCOV_EXCL_START */
 479                 _pthread_mutex_unlock(&private_display->lock);
 480                 TDM_WRN("not implemented!!");
 481                 return TDM_ERROR_NOT_IMPLEMENTED;
 482                 /* LCOV_EXCL_STOP */
 483         }
 484
 485         ret = func_hwc->hwc_set_client_target_buffer(private_hwc->hwc_backend, target_buffer, damage);
 486
 487         if (private_hwc->display_target_buffer) {
 488                 if (private_hwc->display_target_buffer != target_buffer) {
 489                         tbm_surface_internal_unref(private_hwc->display_target_buffer);
 490                         private_hwc->display_target_buffer = target_buffer;
 491                         if (target_buffer)
 492                                 tbm_surface_internal_ref(private_hwc->display_target_buffer);
 493                 }
 494         } else {
 495                 if (target_buffer) {
 496                         private_hwc->display_target_buffer = target_buffer;
 497                         tbm_surface_internal_ref(private_hwc->display_target_buffer);
 498                 }
 499         }
 500
 501         _pthread_mutex_unlock(&private_display->lock);
 502
 503         return ret;
 504 }
 505
 506
 507 EXTERN tdm_error
 508 tdm_hwc_validate(tdm_hwc *hwc, tdm_hwc_window **composited_wnds, uint32_t num_wnds, uint32_t *num_types)
 509 {
 510         tdm_private_module *private_module;
 511         tdm_func_hwc *func_hwc = NULL;
 512         tdm_private_hwc_window **composited_wnds_frontend = NULL;
 513         tdm_hwc_window **composited_wnds_backend = NULL;
 514         int i;
 515
 516         HWC_FUNC_ENTRY();
 517
 518         TDM_RETURN_VAL_IF_FAIL(num_types != NULL, TDM_ERROR_INVALID_PARAMETER);
 519
 520         _pthread_mutex_lock(&private_display->lock);
 521
 522         private_module = private_hwc->private_module;
 523         func_hwc = &private_module->func_hwc;
 524
 525         if (!func_hwc->hwc_validate) {
 526                 /* LCOV_EXCL_START */
 527                 _pthread_mutex_unlock(&private_display->lock);
 528                 TDM_WRN("not implemented!!");
 529                 return TDM_ERROR_NOT_IMPLEMENTED;
 530                 /* LCOV_EXCL_STOP */
 531         }
 532
 533         if (num_wnds == 0) {
 534                 ret = func_hwc->hwc_validate(private_hwc->hwc_backend, NULL, 0, num_types);
 535
 536                 _pthread_mutex_unlock(&private_display->lock);
 537                 return ret;
 538         }
 539
 540         composited_wnds_backend = calloc(num_wnds, sizeof(tdm_hwc_window *));
 541         if (!composited_wnds_backend) {
 542                 /* LCOV_EXCL_START */
 543                 _pthread_mutex_unlock(&private_display->lock);
 544                 return TDM_ERROR_OUT_OF_MEMORY;
 545                 /* LCOV_EXCL_STOP */
 546         }
 547
 548         composited_wnds_frontend = (tdm_private_hwc_window **)composited_wnds;
 549
 550         for (i = 0; i < num_wnds; i++)
 551                 composited_wnds_backend[i] = composited_wnds_frontend[i]->hwc_window_backend;
 552
 553         ret = func_hwc->hwc_validate(private_hwc->hwc_backend, composited_wnds_backend,
 554                                                                 num_wnds, num_types);
 555
 556         free(composited_wnds_backend);
 557
 558         _pthread_mutex_unlock(&private_display->lock);
 559
 560         return ret;
 561 }
 562
 563 EXTERN tdm_error
 564 tdm_hwc_get_changed_composition_types(tdm_hwc *hwc, uint32_t *num_elements,
 565                                                                 tdm_hwc_window **hwc_window,
 566                                                                 tdm_hwc_window_composition *composition_types)
 567 {
 568         tdm_private_module *private_module;
 569         tdm_func_hwc *func_hwc = NULL;
 570         tdm_private_hwc_window * private_hwc_window = NULL;
 571         int i = 0;
 572
 573         HWC_FUNC_ENTRY();
 574
 575         TDM_RETURN_VAL_IF_FAIL(num_elements != NULL, TDM_ERROR_INVALID_PARAMETER);
 576
 577         _pthread_mutex_lock(&private_display->lock);
 578
 579         private_module = private_hwc->private_module;
 580         func_hwc = &private_module->func_hwc;
 581
 582         if (!func_hwc->hwc_get_changed_composition_types) {
 583                 /* LCOV_EXCL_START */
 584                 _pthread_mutex_unlock(&private_display->lock);
 585                 TDM_WRN("not implemented!!");
 586                 return TDM_ERROR_NOT_IMPLEMENTED;
 587                 /* LCOV_EXCL_STOP */
 588         }
 589
 590         ret = func_hwc->hwc_get_changed_composition_types(private_hwc->hwc_backend,
 591                                                         num_elements, hwc_window, composition_types);
 592         if (ret != TDM_ERROR_NONE) {
 593                 /* LCOV_EXCL_START */
 594                 _pthread_mutex_unlock(&private_display->lock);
 595                 return ret;
 596                 /* LCOV_EXCL_STOP */
 597         }
 598
 599         if (hwc_window == NULL || composition_types == NULL) {
 600                 _pthread_mutex_unlock(&private_display->lock);
 601                 return TDM_ERROR_NONE;
 602         }
 603
 604         for (i = 0; i < *num_elements; i++) {
 605                 private_hwc_window = _tdm_hwc_find_private_hwc_window(private_hwc, hwc_window[i]);
 606                 if (private_hwc_window == NULL) {
 607                         /* LCOV_EXCL_START */
 608                         TDM_ERR("failed! This should never happen!");
 609                         tdm_hwc_window_destroy_internal(private_hwc_window);
 610                         *num_elements = 0;
 611                         _pthread_mutex_unlock(&private_display->lock);
 612                         return TDM_ERROR_OPERATION_FAILED;
 613                         /* LCOV_EXCL_STOP */
 614                 }
 615
 616                 hwc_window[i] = (tdm_hwc_window*)private_hwc_window;
 617         }
 618
 619         _pthread_mutex_unlock(&private_display->lock);
 620
 621         return ret;
 622 }
 623
 624 EXTERN tdm_error
 625 tdm_hwc_accept_validation(tdm_hwc *hwc)
 626 {
 627         tdm_private_module *private_module;
 628         tdm_func_hwc *func_hwc = NULL;
 629
 630         HWC_FUNC_ENTRY();
 631
 632         _pthread_mutex_lock(&private_display->lock);
 633
 634         private_module = private_hwc->private_module;
 635         func_hwc = &private_module->func_hwc;
 636
 637         if (!func_hwc->hwc_validate) {
 638                 /* LCOV_EXCL_START */
 639                 _pthread_mutex_unlock(&private_display->lock);
 640                 TDM_WRN("not implemented!!");
 641                 return TDM_ERROR_NOT_IMPLEMENTED;
 642                 /* LCOV_EXCL_STOP */
 643         }
 644
 645         ret = func_hwc->hwc_accept_validation(private_hwc->hwc_backend);
 646
 647         _pthread_mutex_unlock(&private_display->lock);
 648
 649         return ret;
 650 }
 651
 652 EXTERN tdm_error
 653 tdm_hwc_commit(tdm_hwc *hwc, int sync, tdm_hwc_commit_handler func, void *user_data)
 654 {
 655         tdm_private_module *private_module;
 656         tdm_func_hwc *func_hwc = NULL;
 657         tdm_private_hwc_commit_handler *hwc_commit_handler = NULL;
 658         tdm_private_voutput *private_voutput = NULL;
 659         tdm_private_voutput_commit_handler *voutput_commit_handler = NULL;
 660
 661         HWC_FUNC_ENTRY();
 662
 663         _pthread_mutex_lock(&private_display->lock);
 664
 665         private_module = private_hwc->private_module;
 666         func_hwc = &private_module->func_hwc;
 667
 668         if (!func_hwc->hwc_commit) {
 669                 /* LCOV_EXCL_START */
 670                 TDM_WRN("not implemented!!");
 671                 _pthread_mutex_unlock(&private_display->lock);
 672                 return TDM_ERROR_NOT_IMPLEMENTED;
 673                 /* LCOV_EXCL_STOP */
 674         }
 675
 676 //TODO: I am not sure yet whether we have to check the dpms at hwc_commit.
 677 #if 0
 678         /* check if the dpms is off */
 679         if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(private_output->current_dpms_value)) {
 680                 TDM_ERR("hwc(%d) dpms: %s", private_hwc->index,
 681                                 tdm_dpms_str(private_output->current_dpms_value));
 682                 _pthread_mutex_unlock(&private_display->lock);
 683                 return TDM_ERROR_DPMS_OFF;
 684         }
 685 #endif
 686
 687         if (tdm_debug_module & TDM_DEBUG_COMMIT)
 688                 TDM_INFO("hwc(%d) commit", private_hwc->index);
 689
 690         if (private_module == private_display->virtual_module) {
 691                 if (!private_output->private_voutput) {
 692                         TDM_ERR("virtual module but don't have voutput");
 693                         _pthread_mutex_unlock(&private_display->lock);
 694                         return TDM_ERROR_BAD_MODULE;
 695                 }
 696         }
 697
 698         if (!private_hwc->regist_commit_cb) {
 699                 private_hwc->regist_commit_cb = 1;
 700                 ret = func_hwc->hwc_set_commit_handler(private_hwc->hwc_backend, _tdm_hwc_cb_commit);
 701                 /* LCOV_EXCL_START */
 702                 if (ret != TDM_ERROR_NONE) {
 703                         private_hwc->regist_commit_cb = 0;
 704                         TDM_ERR("hwc(%d) fail to set hwc_set_commit_handler", private_hwc->index);
 705                         _pthread_mutex_unlock(&private_display->lock);
 706                         return ret;
 707                 /* LCOV_EXCL_STOP */
 708                 }
 709         }
 710
 711         hwc_commit_handler = calloc(1, sizeof(tdm_private_hwc_commit_handler));
 712         if (!hwc_commit_handler) {
 713                 /* LCOV_EXCL_START */
 714                 TDM_ERR("failed: alloc memory");
 715                 _pthread_mutex_unlock(&private_display->lock);
 716                 return TDM_ERROR_OUT_OF_MEMORY;
 717                 /* LCOV_EXCL_STOP */
 718         }
 719
 720         ret = tdm_thread_cb_add(private_hwc, TDM_THREAD_CB_HWC_COMMIT, hwc_commit_handler,
 721                                         _tdm_hwc_thread_cb_commit, NULL);
 722         if (ret != TDM_ERROR_NONE) {
 723                 TDM_ERR("tdm_thread_cb_add failed");
 724                 free(hwc_commit_handler);
 725                 _pthread_mutex_unlock(&private_display->lock);
 726                 return ret;
 727         }
 728
 729         LIST_ADDTAIL(&hwc_commit_handler->link, &private_hwc->hwc_commit_handler_list);
 730         hwc_commit_handler->private_hwc = private_hwc;
 731         hwc_commit_handler->func = func;
 732         hwc_commit_handler->user_data = user_data;
 733         hwc_commit_handler->owner_tid = syscall(SYS_gettid);
 734
 735         if (private_module == private_display->virtual_module) {
 736                 private_voutput = private_output->private_voutput;
 737
 738                 if (LIST_LENGTH(&private_voutput->voutput_commit_handler_list) != 0) {
 739                         voutput_commit_handler = LIST_FIRST_ENTRY(&private_voutput->voutput_commit_handler_list, tdm_private_voutput_commit_handler, link);
 740                         voutput_commit_handler->user_data = private_hwc->display_target_buffer;
 741                 }
 742         }
 743
 744         ret = func_hwc->hwc_commit(private_hwc->hwc_backend, sync, hwc_commit_handler);
 745         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, commit_failed);
 746
 747         if (hwc_use_vblank) {
 748                 ret = _tdm_hwc_vblank(private_hwc, hwc_commit_handler);
 749                 if (ret == TDM_ERROR_NONE) {
 750                         if (tdm_debug_module & TDM_DEBUG_COMMIT)
 751                                 TDM_INFO("hwc(%d) backend commit: wait vblank handle(%p) func(%p) user_data(%p)",
 752                                         private_hwc->index, hwc_commit_handler, func, user_data);
 753                 } else
 754                         goto commit_failed;
 755         } else {
 756                 if (tdm_debug_module & TDM_DEBUG_COMMIT)
 757                         TDM_INFO("hwc(%d) backend commit: handle(%p) func(%p) user_data(%p)",
 758                                         private_hwc->index, hwc_commit_handler, func, user_data);
 759         }
 760
 761         _pthread_mutex_unlock(&private_display->lock);
 762
 763         return ret;
 764
 765 commit_failed:
 766         /* LCOV_EXCL_START */
 767         if (hwc_commit_handler) {
 768                 tdm_thread_cb_remove(private_hwc, TDM_THREAD_CB_HWC_COMMIT, hwc_commit_handler,
 769                                                 _tdm_hwc_thread_cb_commit, NULL);
 770                 LIST_DEL(&hwc_commit_handler->link);
 771                 free(hwc_commit_handler);
 772         }
 773
 774         _pthread_mutex_unlock(&private_display->lock);
 775
 776         return ret;
 777         /* LCOV_EXCL_STOP */
 778 }
 779
 780 tdm_error
 781 tdm_hwc_set_property(tdm_hwc *hwc, uint32_t id, tdm_value value)
 782 {
 783         tdm_private_module *private_module;
 784         tdm_func_hwc *func_hwc = NULL;
 785
 786         HWC_FUNC_ENTRY();
 787
 788         _pthread_mutex_lock(&private_display->lock);
 789
 790         private_module = private_hwc->private_module;
 791         func_hwc = &private_module->func_hwc;
 792
 793         if (!func_hwc->hwc_set_property) {
 794                 /* LCOV_EXCL_START */
 795                 _pthread_mutex_unlock(&private_display->lock);
 796                 TDM_WRN("not implemented!!");
 797                 return TDM_ERROR_NOT_IMPLEMENTED;
 798                 /* LCOV_EXCL_STOP */
 799         }
 800
 801         ret = func_hwc->hwc_set_property(private_hwc->hwc_backend, id, value);
 802
 803         _pthread_mutex_unlock(&private_display->lock);
 804
 805         return ret;
 806 }
 807
 808 tdm_error
 809 tdm_hwc_get_property(tdm_hwc *hwc, uint32_t id, tdm_value *value)
 810 {
 811         tdm_private_module *private_module;
 812         tdm_func_hwc *func_hwc = NULL;
 813
 814         HWC_FUNC_ENTRY();
 815
 816         _pthread_mutex_lock(&private_display->lock);
 817
 818         private_module = private_hwc->private_module;
 819         func_hwc = &private_module->func_hwc;
 820
 821         if (!func_hwc->hwc_get_property) {
 822                 /* LCOV_EXCL_START */
 823                 _pthread_mutex_unlock(&private_display->lock);
 824                 TDM_WRN("not implemented!!");
 825                 return TDM_ERROR_NOT_IMPLEMENTED;
 826                 /* LCOV_EXCL_STOP */
 827         }
 828
 829         ret = func_hwc->hwc_get_property(private_hwc->hwc_backend, id, value);
 830
 831         _pthread_mutex_unlock(&private_display->lock);
 832
 833         return ret;
 834 }