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         TDM_RETURN_IF_FAIL(hwc_commit_handler->private_hwc != NULL);
 216
 217         private_output = hwc_commit_handler->private_hwc->private_output;
 218         TDM_RETURN_IF_FAIL(private_output != NULL);
 219
 220         private_display = private_output->private_display;
 221
 222         _pthread_mutex_lock(&private_display->lock);
 223
 224         _tdm_hwc_got_wait_vblank(sequence, tv_sec, tv_usec, user_data);
 225
 226         _pthread_mutex_unlock(&private_display->lock);
 227 }
 228
 229 static tdm_error
 230 _tdm_hwc_vblank(tdm_private_hwc *private_hwc, tdm_private_hwc_commit_handler *hwc_commit_handler)
 231 {
 232         tdm_private_display *private_display;
 233         tdm_private_output *private_output;
 234         tdm_error ret = TDM_ERROR_NONE;
 235
 236         private_output = private_hwc->private_output;
 237         TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_INVALID_PARAMETER);
 238         private_display = private_output->private_display;
 239
 240         if (!private_output->vblank) {
 241                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 242                 _pthread_mutex_unlock(&private_display->lock);
 243                 private_output->vblank = tdm_vblank_create(private_display, private_output, NULL);
 244                 _pthread_mutex_lock(&private_display->lock);
 245                 TDM_RETURN_VAL_IF_FAIL(private_output->vblank != NULL, TDM_ERROR_OPERATION_FAILED);
 246         }
 247
 248         if (!private_output->layer_waiting_vblank) {
 249                 ret = tdm_vblank_set_fps(private_output->vblank, hwc_vblank_fps);
 250                 if (ret != TDM_ERROR_NONE)
 251                         goto done;
 252
 253                 hwc_commit_handler->use_vblank = 1;
 254                 private_output->layer_waiting_vblank = 1;
 255
 256                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 257                 _pthread_mutex_unlock(&private_display->lock);
 258                 ret = tdm_vblank_wait(private_output->vblank, 0, 0, 1, _tdm_hwc_cb_wait_vblank, hwc_commit_handler);
 259                 _pthread_mutex_lock(&private_display->lock);
 260                 if (ret != TDM_ERROR_NONE) {
 261                         if (!TDM_OUTPUT_DPMS_VSYNC_IS_OFF(private_output->current_dpms_value)) {
 262                                 hwc_commit_handler->use_vblank = 0;
 263                                 private_output->layer_waiting_vblank = 0;
 264                         }
 265                 }
 266         }
 267
 268 done:
 269         return ret;
 270 }
 271
 272 INTERN tdm_error
 273 tdm_hwc_init(tdm_private_display *private_display)
 274 {
 275         tdm_thread_cb_set_find_func(TDM_THREAD_CB_HWC_COMMIT, tdm_display_find_hwc_stamp);
 276
 277         return TDM_ERROR_NONE;
 278 }
 279
 280 INTERN void
 281 tdm_hwc_set_vblank(unsigned int fps)
 282 {
 283         hwc_use_vblank = 1;
 284         hwc_vblank_fps = fps;
 285 }
 286
 287 INTERN void
 288 tdm_hwc_unset_vblank(void)
 289 {
 290         hwc_use_vblank = 0;
 291         hwc_vblank_fps = 0;
 292 }
 293
 294 EXTERN tdm_hwc_window *
 295 tdm_hwc_create_window(tdm_hwc *hwc, tdm_error *error)
 296 {
 297         tdm_hwc_window *hwc_window = NULL;
 298
 299         HWC_FUNC_ENTRY_ERROR();
 300
 301         _pthread_mutex_lock(&private_display->lock);
 302
 303         hwc_window = (tdm_hwc_window *)tdm_hwc_window_create_internal(private_hwc, error);
 304
 305         _pthread_mutex_unlock(&private_display->lock);
 306
 307         return hwc_window;
 308 }
 309
 310 EXTERN tdm_error
 311 tdm_hwc_get_video_supported_formats(tdm_hwc *hwc, const tbm_format **formats, int *count)
 312 {
 313         tdm_private_module *private_module;
 314         tdm_func_hwc *func_hwc;
 315
 316         HWC_FUNC_ENTRY();
 317
 318         TDM_RETURN_VAL_IF_FAIL(formats != NULL, TDM_ERROR_INVALID_PARAMETER);
 319         TDM_RETURN_VAL_IF_FAIL(count != NULL, TDM_ERROR_INVALID_PARAMETER);
 320
 321         _pthread_mutex_lock(&private_display->lock);
 322
 323         private_module = private_output->private_module;
 324         func_hwc = &private_module->func_hwc;
 325
 326         if (!func_hwc->hwc_get_video_supported_formats) {
 327                 /* LCOV_EXCL_START */
 328                 _pthread_mutex_unlock(&private_display->lock);
 329                 TDM_WRN("not implemented!!");
 330                 return TDM_ERROR_NOT_IMPLEMENTED;
 331                 /* LCOV_EXCL_STOP */
 332         }
 333
 334         ret = func_hwc->hwc_get_video_supported_formats(private_hwc->hwc_backend, formats, count);
 335
 336         _pthread_mutex_unlock(&private_display->lock);
 337
 338         return ret;
 339 }
 340
 341 EXTERN tdm_error
 342 tdm_hwc_get_video_available_properties(tdm_hwc *hwc, const tdm_prop **props, int *count)
 343 {
 344         tdm_private_module *private_module;
 345         tdm_func_hwc *func_hwc = NULL;
 346
 347         HWC_FUNC_ENTRY();
 348
 349         TDM_RETURN_VAL_IF_FAIL(props != NULL, TDM_ERROR_INVALID_PARAMETER);
 350         TDM_RETURN_VAL_IF_FAIL(count != NULL, TDM_ERROR_INVALID_PARAMETER);
 351
 352         _pthread_mutex_lock(&private_display->lock);
 353
 354         private_module = private_output->private_module;
 355         func_hwc = &private_module->func_hwc;
 356
 357         if (!func_hwc->hwc_get_video_available_properties) {
 358                 /* LCOV_EXCL_START */
 359                 _pthread_mutex_unlock(&private_display->lock);
 360                 TDM_WRN("not implemented!!");
 361                 return TDM_ERROR_NOT_IMPLEMENTED;
 362                 /* LCOV_EXCL_STOP */
 363         }
 364
 365         ret = func_hwc->hwc_get_video_available_properties(private_hwc->hwc_backend, props, count);
 366
 367         _pthread_mutex_unlock(&private_display->lock);
 368
 369         return ret;
 370 }
 371
 372 EXTERN tdm_error
 373 tdm_hwc_get_capabilities(tdm_hwc *hwc, tdm_hwc_capability *capabilities)
 374 {
 375         tdm_private_module *private_module;
 376         tdm_func_hwc *func_hwc;
 377
 378         HWC_FUNC_ENTRY();
 379
 380         _pthread_mutex_lock(&private_display->lock);
 381
 382         private_module = private_output->private_module;
 383         func_hwc = &private_module->func_hwc;
 384
 385         if (!func_hwc->hwc_get_capabilities) {
 386                 _pthread_mutex_unlock(&private_display->lock);
 387                 TDM_WRN("not implemented!!");
 388                 return TDM_ERROR_NOT_IMPLEMENTED;
 389         }
 390
 391         ret = func_hwc->hwc_get_capabilities(private_hwc->hwc_backend, capabilities);
 392
 393         _pthread_mutex_unlock(&private_display->lock);
 394
 395         return ret;
 396 }
 397
 398 EXTERN tdm_error
 399 tdm_hwc_get_available_properties(tdm_hwc *hwc, const tdm_prop **props, int *count)
 400 {
 401         tdm_private_module *private_module;
 402         tdm_func_hwc *func_hwc = NULL;
 403
 404         HWC_FUNC_ENTRY();
 405
 406         TDM_RETURN_VAL_IF_FAIL(props != NULL, TDM_ERROR_INVALID_PARAMETER);
 407         TDM_RETURN_VAL_IF_FAIL(count != NULL, TDM_ERROR_INVALID_PARAMETER);
 408
 409         _pthread_mutex_lock(&private_display->lock);
 410
 411         private_module = private_output->private_module;
 412         func_hwc = &private_module->func_hwc;
 413
 414         if (!func_hwc->hwc_get_available_properties) {
 415                 /* LCOV_EXCL_START */
 416                 _pthread_mutex_unlock(&private_display->lock);
 417                 TDM_WRN("not implemented!!");
 418                 return TDM_ERROR_NOT_IMPLEMENTED;
 419                 /* LCOV_EXCL_STOP */
 420         }
 421
 422         ret = func_hwc->hwc_get_available_properties(private_hwc->hwc_backend, props, count);
 423
 424         _pthread_mutex_unlock(&private_display->lock);
 425
 426         return ret;
 427 }
 428
 429 EXTERN tbm_surface_queue_h
 430 tdm_hwc_get_client_target_buffer_queue(tdm_hwc *hwc, tdm_error *error)
 431 {
 432         tdm_private_module *private_module;
 433         tdm_func_hwc *func_hwc = NULL;
 434         tbm_surface_queue_h queue = NULL;
 435
 436         HWC_FUNC_ENTRY_ERROR();
 437
 438         _pthread_mutex_lock(&private_display->lock);
 439
 440         private_module = private_hwc->private_module;
 441         func_hwc = &private_module->func_hwc;
 442
 443         if (!func_hwc->hwc_get_client_target_buffer_queue) {
 444                 /* LCOV_EXCL_START */
 445                 _pthread_mutex_unlock(&private_display->lock);
 446                 TDM_WRN("not implemented!!");
 447                 return NULL;
 448                 /* LCOV_EXCL_STOP */
 449         }
 450
 451         queue = func_hwc->hwc_get_client_target_buffer_queue(private_hwc->hwc_backend, error);
 452
 453         _pthread_mutex_unlock(&private_display->lock);
 454
 455         return queue;
 456 }
 457
 458 EXTERN tdm_error
 459 tdm_hwc_set_client_target_buffer(tdm_hwc *hwc, tbm_surface_h target_buffer, tdm_region damage)
 460 {
 461         tdm_private_module *private_module;
 462         tdm_func_hwc *func_hwc = NULL;
 463
 464         HWC_FUNC_ENTRY();
 465
 466         _pthread_mutex_lock(&private_display->lock);
 467
 468         if (tdm_debug_dump & TDM_DUMP_FLAG_WINDOW) {
 469                 /* LCOV_EXCL_START */
 470                 char str[TDM_PATH_LEN];
 471                 static int i;
 472                 snprintf(str, TDM_PATH_LEN, "target_window_%03d", i++);
 473                 tdm_helper_dump_buffer_str(target_buffer, tdm_debug_dump_dir, str);
 474                 /* LCOV_EXCL_STOP */
 475         }
 476
 477         private_module = private_hwc->private_module;
 478         func_hwc = &private_module->func_hwc;
 479
 480         if (!func_hwc->hwc_set_client_target_buffer) {
 481                 /* LCOV_EXCL_START */
 482                 _pthread_mutex_unlock(&private_display->lock);
 483                 TDM_WRN("not implemented!!");
 484                 return TDM_ERROR_NOT_IMPLEMENTED;
 485                 /* LCOV_EXCL_STOP */
 486         }
 487
 488         ret = func_hwc->hwc_set_client_target_buffer(private_hwc->hwc_backend, target_buffer, damage);
 489
 490         if (private_hwc->display_target_buffer) {
 491                 if (private_hwc->display_target_buffer != target_buffer) {
 492                         tbm_surface_internal_unref(private_hwc->display_target_buffer);
 493                         private_hwc->display_target_buffer = target_buffer;
 494                         if (target_buffer)
 495                                 tbm_surface_internal_ref(private_hwc->display_target_buffer);
 496                 }
 497         } else {
 498                 if (target_buffer) {
 499                         private_hwc->display_target_buffer = target_buffer;
 500                         tbm_surface_internal_ref(private_hwc->display_target_buffer);
 501                 }
 502         }
 503
 504         _pthread_mutex_unlock(&private_display->lock);
 505
 506         return ret;
 507 }
 508
 509
 510 EXTERN tdm_error
 511 tdm_hwc_validate(tdm_hwc *hwc, tdm_hwc_window **composited_wnds, uint32_t num_wnds, uint32_t *num_types)
 512 {
 513         tdm_private_module *private_module;
 514         tdm_func_hwc *func_hwc = NULL;
 515         tdm_private_hwc_window **composited_wnds_frontend = NULL;
 516         tdm_hwc_window **composited_wnds_backend = NULL;
 517         int i;
 518
 519         HWC_FUNC_ENTRY();
 520
 521         TDM_RETURN_VAL_IF_FAIL(num_types != NULL, TDM_ERROR_INVALID_PARAMETER);
 522
 523         _pthread_mutex_lock(&private_display->lock);
 524
 525         private_module = private_hwc->private_module;
 526         func_hwc = &private_module->func_hwc;
 527
 528         if (!func_hwc->hwc_validate) {
 529                 /* LCOV_EXCL_START */
 530                 _pthread_mutex_unlock(&private_display->lock);
 531                 TDM_WRN("not implemented!!");
 532                 return TDM_ERROR_NOT_IMPLEMENTED;
 533                 /* LCOV_EXCL_STOP */
 534         }
 535
 536         if (num_wnds == 0) {
 537                 ret = func_hwc->hwc_validate(private_hwc->hwc_backend, NULL, 0, num_types);
 538
 539                 _pthread_mutex_unlock(&private_display->lock);
 540                 return ret;
 541         }
 542
 543         composited_wnds_backend = calloc(num_wnds, sizeof(tdm_hwc_window *));
 544         if (!composited_wnds_backend) {
 545                 /* LCOV_EXCL_START */
 546                 _pthread_mutex_unlock(&private_display->lock);
 547                 return TDM_ERROR_OUT_OF_MEMORY;
 548                 /* LCOV_EXCL_STOP */
 549         }
 550
 551         composited_wnds_frontend = (tdm_private_hwc_window **)composited_wnds;
 552
 553         for (i = 0; i < num_wnds; i++)
 554                 composited_wnds_backend[i] = composited_wnds_frontend[i]->hwc_window_backend;
 555
 556         ret = func_hwc->hwc_validate(private_hwc->hwc_backend, composited_wnds_backend,
 557                                                                 num_wnds, num_types);
 558
 559         free(composited_wnds_backend);
 560
 561         _pthread_mutex_unlock(&private_display->lock);
 562
 563         return ret;
 564 }
 565
 566 EXTERN tdm_error
 567 tdm_hwc_get_changed_composition_types(tdm_hwc *hwc, uint32_t *num_elements,
 568                                                                 tdm_hwc_window **hwc_window,
 569                                                                 tdm_hwc_window_composition *composition_types)
 570 {
 571         tdm_private_module *private_module;
 572         tdm_func_hwc *func_hwc = NULL;
 573         tdm_private_hwc_window * private_hwc_window = NULL;
 574         int i = 0;
 575
 576         HWC_FUNC_ENTRY();
 577
 578         TDM_RETURN_VAL_IF_FAIL(num_elements != NULL, TDM_ERROR_INVALID_PARAMETER);
 579
 580         _pthread_mutex_lock(&private_display->lock);
 581
 582         private_module = private_hwc->private_module;
 583         func_hwc = &private_module->func_hwc;
 584
 585         if (!func_hwc->hwc_get_changed_composition_types) {
 586                 /* LCOV_EXCL_START */
 587                 _pthread_mutex_unlock(&private_display->lock);
 588                 TDM_WRN("not implemented!!");
 589                 return TDM_ERROR_NOT_IMPLEMENTED;
 590                 /* LCOV_EXCL_STOP */
 591         }
 592
 593         ret = func_hwc->hwc_get_changed_composition_types(private_hwc->hwc_backend,
 594                                                         num_elements, hwc_window, composition_types);
 595         if (ret != TDM_ERROR_NONE) {
 596                 /* LCOV_EXCL_START */
 597                 _pthread_mutex_unlock(&private_display->lock);
 598                 return ret;
 599                 /* LCOV_EXCL_STOP */
 600         }
 601
 602         if (hwc_window == NULL || composition_types == NULL) {
 603                 _pthread_mutex_unlock(&private_display->lock);
 604                 return TDM_ERROR_NONE;
 605         }
 606
 607         for (i = 0; i < *num_elements; i++) {
 608                 private_hwc_window = _tdm_hwc_find_private_hwc_window(private_hwc, hwc_window[i]);
 609                 if (private_hwc_window == NULL) {
 610                         /* LCOV_EXCL_START */
 611                         TDM_ERR("failed! This should never happen!");
 612                         tdm_hwc_window_destroy_internal(private_hwc_window);
 613                         *num_elements = 0;
 614                         _pthread_mutex_unlock(&private_display->lock);
 615                         return TDM_ERROR_OPERATION_FAILED;
 616                         /* LCOV_EXCL_STOP */
 617                 }
 618
 619                 hwc_window[i] = (tdm_hwc_window*)private_hwc_window;
 620         }
 621
 622         _pthread_mutex_unlock(&private_display->lock);
 623
 624         return ret;
 625 }
 626
 627 EXTERN tdm_error
 628 tdm_hwc_accept_validation(tdm_hwc *hwc)
 629 {
 630         tdm_private_module *private_module;
 631         tdm_func_hwc *func_hwc = NULL;
 632
 633         HWC_FUNC_ENTRY();
 634
 635         _pthread_mutex_lock(&private_display->lock);
 636
 637         private_module = private_hwc->private_module;
 638         func_hwc = &private_module->func_hwc;
 639
 640         if (!func_hwc->hwc_validate) {
 641                 /* LCOV_EXCL_START */
 642                 _pthread_mutex_unlock(&private_display->lock);
 643                 TDM_WRN("not implemented!!");
 644                 return TDM_ERROR_NOT_IMPLEMENTED;
 645                 /* LCOV_EXCL_STOP */
 646         }
 647
 648         ret = func_hwc->hwc_accept_validation(private_hwc->hwc_backend);
 649
 650         _pthread_mutex_unlock(&private_display->lock);
 651
 652         return ret;
 653 }
 654
 655 EXTERN tdm_error
 656 tdm_hwc_commit(tdm_hwc *hwc, int sync, tdm_hwc_commit_handler func, void *user_data)
 657 {
 658         tdm_private_module *private_module;
 659         tdm_func_hwc *func_hwc = NULL;
 660         tdm_private_hwc_commit_handler *hwc_commit_handler = NULL;
 661         tdm_private_voutput *private_voutput = NULL;
 662         tdm_private_voutput_commit_handler *voutput_commit_handler = NULL;
 663
 664         HWC_FUNC_ENTRY();
 665
 666         _pthread_mutex_lock(&private_display->lock);
 667
 668         private_module = private_hwc->private_module;
 669         func_hwc = &private_module->func_hwc;
 670
 671         if (!func_hwc->hwc_commit) {
 672                 /* LCOV_EXCL_START */
 673                 TDM_WRN("not implemented!!");
 674                 _pthread_mutex_unlock(&private_display->lock);
 675                 return TDM_ERROR_NOT_IMPLEMENTED;
 676                 /* LCOV_EXCL_STOP */
 677         }
 678
 679 //TODO: I am not sure yet whether we have to check the dpms at hwc_commit.
 680 #if 0
 681         /* check if the dpms is off */
 682         if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(private_output->current_dpms_value)) {
 683                 TDM_ERR("hwc(%d) dpms: %s", private_hwc->index,
 684                                 tdm_dpms_str(private_output->current_dpms_value));
 685                 _pthread_mutex_unlock(&private_display->lock);
 686                 return TDM_ERROR_DPMS_OFF;
 687         }
 688 #endif
 689
 690         if (tdm_debug_module & TDM_DEBUG_COMMIT)
 691                 TDM_INFO("hwc(%d) commit", private_hwc->index);
 692
 693         if (private_module == private_display->virtual_module) {
 694                 if (!private_output->private_voutput) {
 695                         TDM_ERR("virtual module but don't have voutput");
 696                         _pthread_mutex_unlock(&private_display->lock);
 697                         return TDM_ERROR_BAD_MODULE;
 698                 }
 699         }
 700
 701         if (!private_hwc->regist_commit_cb) {
 702                 private_hwc->regist_commit_cb = 1;
 703                 ret = func_hwc->hwc_set_commit_handler(private_hwc->hwc_backend, _tdm_hwc_cb_commit);
 704                 /* LCOV_EXCL_START */
 705                 if (ret != TDM_ERROR_NONE) {
 706                         private_hwc->regist_commit_cb = 0;
 707                         TDM_ERR("hwc(%d) fail to set hwc_set_commit_handler", private_hwc->index);
 708                         _pthread_mutex_unlock(&private_display->lock);
 709                         return ret;
 710                 /* LCOV_EXCL_STOP */
 711                 }
 712         }
 713
 714         hwc_commit_handler = calloc(1, sizeof(tdm_private_hwc_commit_handler));
 715         if (!hwc_commit_handler) {
 716                 /* LCOV_EXCL_START */
 717                 TDM_ERR("failed: alloc memory");
 718                 _pthread_mutex_unlock(&private_display->lock);
 719                 return TDM_ERROR_OUT_OF_MEMORY;
 720                 /* LCOV_EXCL_STOP */
 721         }
 722
 723         ret = tdm_thread_cb_add(private_hwc, TDM_THREAD_CB_HWC_COMMIT, hwc_commit_handler,
 724                                         _tdm_hwc_thread_cb_commit, NULL);
 725         if (ret != TDM_ERROR_NONE) {
 726                 TDM_ERR("tdm_thread_cb_add failed");
 727                 free(hwc_commit_handler);
 728                 _pthread_mutex_unlock(&private_display->lock);
 729                 return ret;
 730         }
 731
 732         LIST_ADDTAIL(&hwc_commit_handler->link, &private_hwc->hwc_commit_handler_list);
 733         hwc_commit_handler->private_hwc = private_hwc;
 734         hwc_commit_handler->func = func;
 735         hwc_commit_handler->user_data = user_data;
 736         hwc_commit_handler->owner_tid = syscall(SYS_gettid);
 737
 738         if (private_module == private_display->virtual_module) {
 739                 private_voutput = private_output->private_voutput;
 740
 741                 if (LIST_LENGTH(&private_voutput->voutput_commit_handler_list) != 0) {
 742                         voutput_commit_handler = LIST_FIRST_ENTRY(&private_voutput->voutput_commit_handler_list, tdm_private_voutput_commit_handler, link);
 743                         voutput_commit_handler->user_data = private_hwc->display_target_buffer;
 744                 }
 745         }
 746
 747         ret = func_hwc->hwc_commit(private_hwc->hwc_backend, sync, hwc_commit_handler);
 748         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, commit_failed);
 749
 750         if (hwc_use_vblank) {
 751                 ret = _tdm_hwc_vblank(private_hwc, hwc_commit_handler);
 752                 if (ret == TDM_ERROR_NONE) {
 753                         if (tdm_debug_module & TDM_DEBUG_COMMIT)
 754                                 TDM_INFO("hwc(%d) backend commit: wait vblank handle(%p) func(%p) user_data(%p)",
 755                                         private_hwc->index, hwc_commit_handler, func, user_data);
 756                 } else
 757                         goto commit_failed;
 758         } else {
 759                 if (tdm_debug_module & TDM_DEBUG_COMMIT)
 760                         TDM_INFO("hwc(%d) backend commit: handle(%p) func(%p) user_data(%p)",
 761                                         private_hwc->index, hwc_commit_handler, func, user_data);
 762         }
 763
 764         _pthread_mutex_unlock(&private_display->lock);
 765
 766         return ret;
 767
 768 commit_failed:
 769         /* LCOV_EXCL_START */
 770         if (hwc_commit_handler) {
 771                 tdm_thread_cb_remove(private_hwc, TDM_THREAD_CB_HWC_COMMIT, hwc_commit_handler,
 772                                                 _tdm_hwc_thread_cb_commit, NULL);
 773                 LIST_DEL(&hwc_commit_handler->link);
 774                 free(hwc_commit_handler);
 775         }
 776
 777         _pthread_mutex_unlock(&private_display->lock);
 778
 779         return ret;
 780         /* LCOV_EXCL_STOP */
 781 }
 782
 783 tdm_error
 784 tdm_hwc_set_property(tdm_hwc *hwc, uint32_t id, tdm_value value)
 785 {
 786         tdm_private_module *private_module;
 787         tdm_func_hwc *func_hwc = NULL;
 788
 789         HWC_FUNC_ENTRY();
 790
 791         _pthread_mutex_lock(&private_display->lock);
 792
 793         private_module = private_hwc->private_module;
 794         func_hwc = &private_module->func_hwc;
 795
 796         if (!func_hwc->hwc_set_property) {
 797                 /* LCOV_EXCL_START */
 798                 _pthread_mutex_unlock(&private_display->lock);
 799                 TDM_WRN("not implemented!!");
 800                 return TDM_ERROR_NOT_IMPLEMENTED;
 801                 /* LCOV_EXCL_STOP */
 802         }
 803
 804         ret = func_hwc->hwc_set_property(private_hwc->hwc_backend, id, value);
 805
 806         _pthread_mutex_unlock(&private_display->lock);
 807
 808         return ret;
 809 }
 810
 811 tdm_error
 812 tdm_hwc_get_property(tdm_hwc *hwc, uint32_t id, tdm_value *value)
 813 {
 814         tdm_private_module *private_module;
 815         tdm_func_hwc *func_hwc = NULL;
 816
 817         HWC_FUNC_ENTRY();
 818
 819         _pthread_mutex_lock(&private_display->lock);
 820
 821         private_module = private_hwc->private_module;
 822         func_hwc = &private_module->func_hwc;
 823
 824         if (!func_hwc->hwc_get_property) {
 825                 /* LCOV_EXCL_START */
 826                 _pthread_mutex_unlock(&private_display->lock);
 827                 TDM_WRN("not implemented!!");
 828                 return TDM_ERROR_NOT_IMPLEMENTED;
 829                 /* LCOV_EXCL_STOP */
 830         }
 831
 832         ret = func_hwc->hwc_get_property(private_hwc->hwc_backend, id, value);
 833
 834         _pthread_mutex_unlock(&private_display->lock);
 835
 836         return ret;
 837 }