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