src/tdm.c

   1 /**************************************************************************
   2  *
   3  * libtdm
   4  *
   5  * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
   6  *
   7  * Contact: Eunchul Kim <chulspro.kim@samsung.com>,
   8  *          JinYoung Jeon <jy0.jeon@samsung.com>,
   9  *          Taeheon Kim <th908.kim@samsung.com>,
  10  *          YoungJun Cho <yj44.cho@samsung.com>,
  11  *          SooChan Lim <sc1.lim@samsung.com>,
  12  *          Boram Park <sc1.lim@samsung.com>
  13  *
  14  * Permission is hereby granted, free of charge, to any person obtaining a
  15  * copy of this software and associated documentation files (the
  16  * "Software"), to deal in the Software without restriction, including
  17  * without limitation the rights to use, copy, modify, merge, publish,
  18  * distribute, sub license, and/or sell copies of the Software, and to
  19  * permit persons to whom the Software is furnished to do so, subject to
  20  * the following conditions:
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  27  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  29  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  30  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  31  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  32  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33  *
  34 **************************************************************************/
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include "config.h"
  38 #endif
  39
  40 #include "tdm.h"
  41 #include "tdm_backend.h"
  42 #include "tdm_private.h"
  43 #include "tdm_helper.h"
  44
  45 pthread_mutex_t tdm_mutex_check_lock = PTHREAD_MUTEX_INITIALIZER;
  46 int tdm_mutex_locked;
  47 const char *tdm_mutex_lock_func;
  48 int tdm_mutex_lock_line;
  49 const char *tdm_mutex_unlock_func;
  50 int tdm_mutex_unlock_line;
  51
  52 static tdm_private_layer *
  53 _tdm_display_find_private_layer(tdm_private_output *private_output,
  54                                                                 tdm_layer *layer_backend)
  55 {
  56         tdm_private_layer *private_layer = NULL;
  57
  58         LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
  59                 if (private_layer->layer_backend == layer_backend)
  60                         return private_layer;
  61         }
  62
  63         return NULL;
  64 }
  65
  66 static tdm_private_output *
  67 _tdm_display_find_private_output(tdm_private_display *private_display,
  68                                                                  tdm_output *output_backend)
  69 {
  70         tdm_private_output *private_output = NULL;
  71
  72         LIST_FOR_EACH_ENTRY(private_output, &private_display->output_list, link) {
  73                 if (private_output->output_backend == output_backend)
  74                         return private_output;
  75         }
  76
  77         return NULL;
  78 }
  79
  80 INTERN tdm_private_output *
  81 tdm_display_find_output_stamp(tdm_private_display *private_display, double stamp)
  82 {
  83         tdm_private_output *private_output = NULL;
  84
  85         LIST_FOR_EACH_ENTRY(private_output, &private_display->output_list, link) {
  86                 if (private_output->stamp == stamp)
  87                         return private_output;
  88         }
  89
  90         return NULL;
  91 }
  92
  93 static void
  94 _tdm_display_destroy_caps_pp(tdm_caps_pp *caps_pp)
  95 {
  96         if (caps_pp->formats)
  97                 free(caps_pp->formats);
  98
  99         memset(caps_pp, 0, sizeof(tdm_caps_pp));
 100 }
 101
 102 static void
 103 _tdm_display_destroy_caps_capture(tdm_caps_capture *caps_capture)
 104 {
 105         if (caps_capture->formats)
 106                 free(caps_capture->formats);
 107
 108         memset(caps_capture, 0, sizeof(tdm_caps_capture));
 109 }
 110
 111 static void
 112 _tdm_display_destroy_caps_layer(tdm_caps_layer *caps_layer)
 113 {
 114         if (caps_layer->formats)
 115                 free(caps_layer->formats);
 116
 117         if (caps_layer->props)
 118                 free(caps_layer->props);
 119
 120         memset(caps_layer, 0, sizeof(tdm_caps_layer));
 121 }
 122
 123 static void
 124 _tdm_display_destroy_caps_output(tdm_caps_output *caps_output)
 125 {
 126         if (caps_output->modes)
 127                 free(caps_output->modes);
 128
 129         if (caps_output->props)
 130                 free(caps_output->props);
 131
 132         memset(caps_output, 0, sizeof(tdm_caps_output));
 133 }
 134
 135 static void
 136 _tdm_display_destroy_private_layer(tdm_private_layer *private_layer)
 137 {
 138         tdm_private_capture *c = NULL, *cc = NULL;
 139
 140         LIST_DEL(&private_layer->link);
 141
 142         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_layer->capture_list, link)
 143         tdm_capture_destroy_internal(c);
 144
 145         _tdm_display_destroy_caps_layer(&private_layer->caps);
 146
 147         free(private_layer);
 148 }
 149
 150 static void
 151 _tdm_display_destroy_private_output(tdm_private_output *private_output)
 152 {
 153         tdm_private_display *private_display = private_output->private_display;
 154         tdm_private_layer *l = NULL, *ll = NULL;
 155         tdm_private_capture *c = NULL, *cc = NULL;
 156         tdm_private_vblank_handler *v = NULL, *vv = NULL;
 157         tdm_private_output_commit_handler *om = NULL, *omm = NULL;
 158         tdm_private_layer_commit_handler *lm = NULL, *lmm = NULL;
 159         tdm_private_change_handler *h = NULL, *hh = NULL;
 160
 161         LIST_DEL(&private_output->link);
 162
 163         free(private_output->layers_ptr);
 164
 165         LIST_FOR_EACH_ENTRY_SAFE(v, vv, &private_output->vblank_handler_list, link) {
 166                 LIST_DEL(&v->link);
 167                 free(v);
 168         }
 169
 170         LIST_FOR_EACH_ENTRY_SAFE(om, omm, &private_output->output_commit_handler_list, link) {
 171                 LIST_DEL(&om->link);
 172                 free(om);
 173         }
 174
 175         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->layer_commit_handler_list, link) {
 176                 LIST_DEL(&lm->link);
 177                 free(lm);
 178         }
 179
 180         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->pending_commit_handler_list, link) {
 181                 LIST_DEL(&lm->link);
 182                 free(lm);
 183         }
 184
 185         LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list_main, link) {
 186                 LIST_DEL(&h->link);
 187                 free(h);
 188         }
 189
 190         LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list_sub, link) {
 191                 LIST_DEL(&h->link);
 192                 free(h);
 193         }
 194
 195         if (private_output->vblank) {
 196                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 197                 _pthread_mutex_unlock(&private_display->lock);
 198                 tdm_vblank_destroy(private_output->vblank);
 199                 _pthread_mutex_lock(&private_display->lock);
 200         }
 201
 202         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_output->capture_list, link)
 203         tdm_capture_destroy_internal(c);
 204
 205         LIST_FOR_EACH_ENTRY_SAFE(l, ll, &private_output->layer_list, link)
 206         _tdm_display_destroy_private_layer(l);
 207
 208         _tdm_display_destroy_caps_output(&private_output->caps);
 209
 210         if (private_output->dpms_changed_timer)
 211                 tdm_event_loop_source_remove(private_output->dpms_changed_timer);
 212
 213         private_output->stamp = 0;
 214         free(private_output);
 215 }
 216
 217 static void
 218 _tdm_display_destroy_private_display(tdm_private_display *private_display)
 219 {
 220         tdm_private_output *o = NULL, *oo = NULL;
 221         tdm_private_pp *p = NULL, *pp = NULL;
 222
 223         free(private_display->outputs_ptr);
 224         if (private_display->outputs) {
 225                 free(private_display->outputs);
 226                 private_display->outputs = NULL;
 227         }
 228
 229         LIST_FOR_EACH_ENTRY_SAFE(p, pp, &private_display->pp_list, link)
 230         tdm_pp_destroy_internal(p);
 231
 232         LIST_FOR_EACH_ENTRY_SAFE(o, oo, &private_display->output_list, link)
 233         _tdm_display_destroy_private_output(o);
 234
 235         _tdm_display_destroy_caps_pp(&private_display->caps_pp);
 236         _tdm_display_destroy_caps_capture(&private_display->caps_capture);
 237
 238         private_display->capabilities = 0;
 239         private_display->caps_display.max_layer_count = 0;
 240 }
 241
 242 static tdm_error
 243 _tdm_display_update_caps_pp(tdm_private_display *private_display,
 244                                                         tdm_caps_pp *caps)
 245 {
 246         tdm_func_display *func_display = &private_display->func_display;
 247         tdm_error ret;
 248
 249         if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_PP))
 250                 return TDM_ERROR_NONE;
 251
 252         if (!func_display->display_get_pp_capability) {
 253                 TDM_ERR("no display_get_pp_capability()");
 254                 return TDM_ERROR_BAD_MODULE;
 255         }
 256
 257         ret = func_display->display_get_pp_capability(private_display->bdata, caps);
 258         if (ret != TDM_ERROR_NONE) {
 259                 TDM_ERR("display_get_pp_capability() failed");
 260                 return TDM_ERROR_BAD_MODULE;
 261         }
 262
 263         return TDM_ERROR_NONE;
 264 }
 265
 266 static tdm_error
 267 _tdm_display_update_caps_capture(tdm_private_display *private_display,
 268                                                                  tdm_caps_capture *caps)
 269 {
 270         tdm_func_display *func_display = &private_display->func_display;
 271         tdm_error ret;
 272
 273         if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE))
 274                 return TDM_ERROR_NONE;
 275
 276         if (!func_display->display_get_capture_capability) {
 277                 TDM_ERR("no display_get_capture_capability()");
 278                 return TDM_ERROR_BAD_MODULE;
 279         }
 280
 281         ret = func_display->display_get_capture_capability(private_display->bdata, caps);
 282         if (ret != TDM_ERROR_NONE) {
 283                 TDM_ERR("display_get_capture_capability() failed");
 284                 return TDM_ERROR_BAD_MODULE;
 285         }
 286
 287         return TDM_ERROR_NONE;
 288 }
 289
 290 static tdm_error
 291 _tdm_display_update_caps_layer(tdm_private_display *private_display,
 292                                                            tdm_layer *layer_backend, tdm_caps_layer *caps)
 293 {
 294         tdm_func_layer *func_layer = &private_display->func_layer;
 295         tdm_error ret;
 296
 297         if (!func_layer->layer_get_capability) {
 298                 TDM_ERR("no layer_get_capability()");
 299                 return TDM_ERROR_BAD_MODULE;
 300         }
 301
 302         ret = func_layer->layer_get_capability(layer_backend, caps);
 303         if (ret != TDM_ERROR_NONE) {
 304                 TDM_ERR("layer_get_capability() failed");
 305                 return TDM_ERROR_BAD_MODULE;
 306         }
 307
 308         return TDM_ERROR_NONE;
 309 }
 310
 311 static tdm_error
 312 _tdm_display_update_caps_output(tdm_private_display *private_display, int pipe,
 313                                                                 tdm_output *output_backend, tdm_caps_output *caps)
 314 {
 315         tdm_func_output *func_output = &private_display->func_output;
 316         char temp[TDM_NAME_LEN];
 317         tdm_error ret;
 318         double stamp;
 319
 320         if (!func_output->output_get_capability) {
 321                 TDM_ERR("no output_get_capability()");
 322                 return TDM_ERROR_BAD_MODULE;
 323         }
 324
 325         stamp = tdm_helper_get_time();
 326         ret = func_output->output_get_capability(output_backend, caps);
 327         TDM_DBG("backend output_get_capability() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 328
 329         if (ret != TDM_ERROR_NONE) {
 330                 TDM_ERR("output_get_capability() failed");
 331                 return TDM_ERROR_BAD_MODULE;
 332         }
 333
 334         /* FIXME: Use model for tdm client to distinguish amoung outputs */
 335         snprintf(temp, TDM_NAME_LEN, "%s-%d", caps->model, pipe);
 336         snprintf(caps->model, TDM_NAME_LEN, "%s", temp);
 337
 338         return TDM_ERROR_NONE;
 339 }
 340
 341 static tdm_error
 342 _tdm_display_update_layer(tdm_private_display *private_display,
 343                                                   tdm_private_output *private_output,
 344                                                   tdm_layer *layer_backend, int index)
 345 {
 346         tdm_private_layer *private_layer;
 347         tdm_error ret;
 348
 349         private_layer = _tdm_display_find_private_layer(private_output, layer_backend);
 350         if (!private_layer) {
 351                 private_layer = calloc(1, sizeof(tdm_private_layer));
 352                 TDM_RETURN_VAL_IF_FAIL(private_layer != NULL, TDM_ERROR_OUT_OF_MEMORY);
 353
 354                 LIST_ADDTAIL(&private_layer->link, &private_output->layer_list);
 355                 private_layer->index = index;
 356                 private_layer->private_display = private_display;
 357                 private_layer->private_output = private_output;
 358                 private_layer->layer_backend = layer_backend;
 359
 360                 LIST_INITHEAD(&private_layer->capture_list);
 361
 362                 private_layer->usable = 1;
 363         } else
 364                 _tdm_display_destroy_caps_layer(&private_layer->caps);
 365
 366         ret = _tdm_display_update_caps_layer(private_display, layer_backend,
 367                                                                                  &private_layer->caps);
 368         if (ret != TDM_ERROR_NONE)
 369                 goto failed_update;
 370
 371         return TDM_ERROR_NONE;
 372 failed_update:
 373         _tdm_display_destroy_private_layer(private_layer);
 374         return ret;
 375 }
 376
 377 INTERN tdm_error
 378 tdm_display_update_output(tdm_private_display *private_display,
 379                                                   tdm_output *output_backend, int pipe)
 380 {
 381         tdm_func_output *func_output = &private_display->func_output;
 382         tdm_private_output *private_output = NULL;
 383         tdm_layer **layers = NULL;
 384         int layer_count = 0, i;
 385         tdm_error ret;
 386
 387         private_output = _tdm_display_find_private_output(private_display, output_backend);
 388         if (!private_output) {
 389                 private_output = calloc(1, sizeof(tdm_private_output));
 390                 TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_OUT_OF_MEMORY);
 391
 392                 private_output->stamp = tdm_helper_get_time();
 393                 while (tdm_display_find_output_stamp(private_display, private_output->stamp))
 394                         private_output->stamp++;
 395
 396                 LIST_ADDTAIL(&private_output->link, &private_display->output_list);
 397
 398                 private_output->private_display = private_display;
 399                 private_output->current_dpms_value = TDM_OUTPUT_DPMS_OFF;
 400                 private_output->output_backend = output_backend;
 401                 private_output->pipe = pipe;
 402                 private_output->index = pipe;
 403
 404                 LIST_INITHEAD(&private_output->layer_list);
 405                 LIST_INITHEAD(&private_output->capture_list);
 406                 LIST_INITHEAD(&private_output->vblank_handler_list);
 407                 LIST_INITHEAD(&private_output->output_commit_handler_list);
 408                 LIST_INITHEAD(&private_output->layer_commit_handler_list);
 409                 LIST_INITHEAD(&private_output->pending_commit_handler_list);
 410                 LIST_INITHEAD(&private_output->change_handler_list_main);
 411                 LIST_INITHEAD(&private_output->change_handler_list_sub);
 412
 413                 if (func_output->output_set_status_handler) {
 414                         func_output->output_set_status_handler(private_output->output_backend,
 415                                                                                                    tdm_output_cb_status,
 416                                                                                                    private_output);
 417                         private_output->regist_change_cb = 1;
 418                 }
 419
 420                 ret = _tdm_display_update_caps_output(private_display, pipe, output_backend,
 421                                                                                           &private_output->caps);
 422                 if (ret != TDM_ERROR_NONE)
 423                         return ret;
 424         } else {
 425                 tdm_caps_output new_caps;
 426
 427                 ret = _tdm_display_update_caps_output(private_display, pipe, output_backend,
 428                                                                                           &new_caps);
 429                 if (ret != TDM_ERROR_NONE)
 430                         return ret;
 431
 432                 /* FIXME: This is very ugly. need to fix after the TDM ABI is changed. */
 433                 if (private_output->caps.status != new_caps.status) {
 434                         _tdm_display_destroy_caps_output(&private_output->caps);
 435                         private_output->caps = new_caps;
 436                         private_output->current_mode = NULL;
 437                 } else {
 438                         tdm_output_mode *old_modes = private_output->caps.modes;
 439                         unsigned int old_mode_count = private_output->caps.mode_count;
 440                         if (new_caps.modes)
 441                                 free(new_caps.modes);
 442                         new_caps.modes = old_modes;
 443                         new_caps.mode_count = old_mode_count;
 444                         if (private_output->caps.props)
 445                                 free(private_output->caps.props);
 446                         private_output->caps = new_caps;
 447                 }
 448         }
 449
 450         layers = func_output->output_get_layers(output_backend, &layer_count, &ret);
 451         if (ret != TDM_ERROR_NONE)
 452                 goto failed_update;
 453
 454         for (i = 0; i < layer_count; i++) {
 455                 ret = _tdm_display_update_layer(private_display, private_output, layers[i], i);
 456                 if (ret != TDM_ERROR_NONE)
 457                         goto failed_update;
 458         }
 459
 460         free(layers);
 461
 462         return TDM_ERROR_NONE;
 463 failed_update:
 464         _tdm_display_destroy_private_output(private_output);
 465         free(layers);
 466         return ret;
 467 }
 468
 469 static tdm_output **
 470 _tdm_display_set_main_first(tdm_output **outputs, int index)
 471 {
 472         tdm_output *output_tmp = NULL;
 473
 474         if (index == 0)
 475                 return outputs;
 476
 477         output_tmp = outputs[0];
 478         outputs[0] = outputs[index];
 479         outputs[index] = output_tmp;
 480
 481         return outputs;
 482 }
 483
 484 static tdm_output **
 485 _tdm_display_get_ordered_outputs(tdm_private_display *private_display, int *count)
 486 {
 487         tdm_func_display *func_display = &private_display->func_display;
 488         tdm_output **outputs = NULL;
 489         tdm_output **new_outputs = NULL;
 490         tdm_output *output_dsi = NULL;
 491         tdm_output *output_lvds = NULL;
 492         tdm_output *output_hdmia = NULL;
 493         tdm_output *output_hdmib = NULL;
 494         int i, output_count = 0, output_connected_count = 0;
 495         int index_dsi = 0, index_lvds = 0, index_hdmia = 0, index_hdmib = 0;
 496         tdm_error ret;
 497
 498         /* don't change list order if not init time */
 499         if (private_display->outputs)
 500                 return private_display->outputs;
 501
 502         outputs = func_display->display_get_outputs(private_display->bdata, &output_count, &ret);
 503         if (ret != TDM_ERROR_NONE)
 504                 goto failed_get_outputs;
 505
 506         *count = output_count;
 507
 508         if (output_count == 0)
 509                 goto failed_get_outputs;
 510         else if (output_count == 1) {
 511                 private_display->outputs = outputs;
 512                 return outputs;
 513         }
 514
 515         /* count connected outputs */
 516         for (i = 0; i < output_count; i++) {
 517                 tdm_func_output *func_output = &private_display->func_output;
 518                 tdm_caps_output caps;
 519                 memset(&caps, 0, sizeof(tdm_caps_output));
 520
 521                 if (!func_output->output_get_capability) {
 522                         TDM_ERR("no output_get_capability()");
 523                         goto failed_get_outputs;
 524                 }
 525
 526                 ret = func_output->output_get_capability(outputs[i], &caps);
 527                 if (ret != TDM_ERROR_NONE) {
 528                         TDM_ERR("output_get_capability() failed");
 529                         goto failed_get_outputs;
 530                 }
 531
 532                 if (caps.status == TDM_OUTPUT_CONN_STATUS_CONNECTED) {
 533                         output_connected_count++;
 534
 535                         switch (caps.type) {
 536                         case TDM_OUTPUT_TYPE_DSI:
 537                                 output_dsi = outputs[i];
 538                                 index_dsi = i;
 539                                 break;
 540                         case TDM_OUTPUT_TYPE_LVDS:
 541                                 output_lvds = outputs[i];
 542                                 index_lvds = i;
 543                                 break;
 544                         case TDM_OUTPUT_TYPE_HDMIA:
 545                                 output_hdmia = outputs[i];
 546                                 index_hdmia = i;
 547                                 break;
 548                         case TDM_OUTPUT_TYPE_HDMIB:
 549                                 output_hdmib = outputs[i];
 550                                 index_hdmib = i;
 551                                 break;
 552                         default:
 553                                 break;
 554                         }
 555                 }
 556
 557                 _tdm_display_destroy_caps_output(&caps);
 558         }
 559
 560         /* ordering : main output is first */
 561         /* If there is no connected output, lvds or dsi cannot be main display. (cannot connect after booting)
 562           * But hdmi is possible, so set hdmi to main display.
 563           * If connected only one output, it is main output.
 564           * If connected outputs over 2, has priority like below.
 565           * (dsi > lvds > hdmi > else)
 566           */
 567         if (output_connected_count == 0) {
 568                 /* hdmi > dsi > lvds > else */
 569                 if (output_hdmia != NULL)
 570                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 571                 else if (output_hdmib != NULL)
 572                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 573                 else if (output_dsi != NULL)
 574                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 575                 else if (output_lvds != NULL)
 576                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 577                 else
 578                         new_outputs = outputs;
 579         } else { /* (output_connected_count > 1) */
 580                 /* dsi > lvds > hdmi > else */
 581                 if (output_dsi != NULL)
 582                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 583                 else if (output_lvds != NULL)
 584                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 585                 else if (output_hdmia != NULL)
 586                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 587                 else if (output_hdmib != NULL)
 588                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 589                 else
 590                         new_outputs = outputs;
 591         }
 592
 593         private_display->outputs = new_outputs;
 594
 595         return new_outputs;
 596
 597 failed_get_outputs:
 598         free(outputs);
 599         *count = 0;
 600         return NULL;
 601 }
 602
 603 static tdm_error
 604 _tdm_display_update_internal(tdm_private_display *private_display,
 605                                                          int only_display)
 606 {
 607         tdm_output **outputs = NULL;
 608         int output_count = 0, i;
 609         tdm_error ret = TDM_ERROR_NONE;
 610
 611         LIST_INITHEAD(&private_display->output_list);
 612         LIST_INITHEAD(&private_display->pp_list);
 613         LIST_INITHEAD(&private_display->capture_list);
 614
 615         if (!only_display) {
 616                 ret = _tdm_display_update_caps_pp(private_display, &private_display->caps_pp);
 617                 if (ret != TDM_ERROR_NONE)
 618                         goto failed_update;
 619
 620                 ret = _tdm_display_update_caps_capture(private_display,
 621                                                                                            &private_display->caps_capture);
 622                 if (ret != TDM_ERROR_NONE)
 623                         goto failed_update;
 624         }
 625
 626         outputs = _tdm_display_get_ordered_outputs(private_display, &output_count);
 627         if (!outputs)
 628                 goto failed_update;
 629
 630         for (i = 0; i < output_count; i++) {
 631                 ret = tdm_display_update_output(private_display, outputs[i], i);
 632                 if (ret != TDM_ERROR_NONE)
 633                         goto failed_update;
 634         }
 635
 636         return TDM_ERROR_NONE;
 637
 638 failed_update:
 639         _tdm_display_destroy_private_display(private_display);
 640         return ret;
 641 }
 642
 643 EXTERN tdm_error
 644 tdm_display_update(tdm_display *dpy)
 645 {
 646         tdm_private_display *private_display;
 647         tdm_error ret;
 648
 649         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 650
 651         private_display = dpy;
 652         _pthread_mutex_lock(&private_display->lock);
 653
 654         ret = _tdm_display_update_internal(private_display, 1);
 655
 656         _pthread_mutex_unlock(&private_display->lock);
 657
 658         return ret;
 659 }
 660
 661 #define SUFFIX_MODULE    ".so"
 662 #define TDM_DEFAULT_MODULE   "libtdm-default"SUFFIX_MODULE
 663 #define TDM_DUMMY_MODULE     "libtdm-dummy"SUFFIX_MODULE
 664
 665 int tdm_debug_module;
 666 int tdm_debug_dump;
 667
 668 static tdm_private_display *g_private_display;
 669 static pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
 670
 671 static tdm_error
 672 _tdm_display_check_module(tdm_backend_module *module)
 673 {
 674         int major, minor;
 675
 676         TDM_INFO("TDM ABI version : %d.%d",
 677                          TDM_MAJOR_VERSION, TDM_MINOR_VERSION);
 678
 679         if (!module->name) {
 680                 TDM_ERR("TDM backend doesn't have name");
 681                 return TDM_ERROR_BAD_MODULE;
 682         }
 683
 684         if (!module->vendor) {
 685                 TDM_ERR("TDM backend doesn't have vendor");
 686                 return TDM_ERROR_BAD_MODULE;
 687         }
 688
 689         major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
 690         minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
 691
 692         TDM_INFO("TDM module name: %s", module->name);
 693         TDM_INFO("'%s' vendor: %s", module->name, module->vendor);
 694         TDM_INFO("'%s' version: %d.%d", module->name, major, minor);
 695
 696         if (major != TDM_MAJOR_VERSION) {
 697                 TDM_ERR("'%s' major version mismatch, %d != %d",
 698                                 module->name, major, TDM_MAJOR_VERSION);
 699                 return TDM_ERROR_BAD_MODULE;
 700         }
 701
 702         if (minor > TDM_MINOR_VERSION) {
 703                 TDM_ERR("'%s' minor version(%d) is newer than %d",
 704                                 module->name, minor, TDM_MINOR_VERSION);
 705                 return TDM_ERROR_BAD_MODULE;
 706         }
 707
 708         if (!module->init) {
 709                 TDM_ERR("'%s' doesn't have init function", module->name);
 710                 return TDM_ERROR_BAD_MODULE;
 711         }
 712
 713         if (!module->deinit) {
 714                 TDM_ERR("'%s' doesn't have deinit function", module->name);
 715                 return TDM_ERROR_BAD_MODULE;
 716         }
 717
 718         return TDM_ERROR_NONE;
 719 }
 720
 721 static tdm_error
 722 _tdm_display_check_backend_functions(tdm_private_display *private_display)
 723 {
 724         tdm_func_display *func_display = &private_display->func_display;
 725         tdm_func_output *func_output = &private_display->func_output;
 726         tdm_func_layer *func_layer = &private_display->func_layer;
 727         tdm_error ret;
 728
 729         /* below functions should be implemented in backend side */
 730
 731         TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_BAD_MODULE);
 732         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_outputs, TDM_ERROR_BAD_MODULE);
 733         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_capability, TDM_ERROR_BAD_MODULE);
 734         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_layers, TDM_ERROR_BAD_MODULE);
 735         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_capability, TDM_ERROR_BAD_MODULE);
 736
 737         ret = func_display->display_get_capability(private_display->bdata, &private_display->caps_display);
 738         if (ret != TDM_ERROR_NONE) {
 739                 TDM_ERR("display_get_capability() failed");
 740                 return TDM_ERROR_BAD_MODULE;
 741         }
 742
 743         if (private_display->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
 744                 tdm_func_pp *func_pp = &private_display->func_pp;
 745                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_pp_capability, TDM_ERROR_BAD_MODULE);
 746                 TDM_RETURN_VAL_IF_FAIL(func_display->display_create_pp, TDM_ERROR_BAD_MODULE);
 747                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_destroy, TDM_ERROR_BAD_MODULE);
 748                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_commit, TDM_ERROR_BAD_MODULE);
 749                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_set_done_handler, TDM_ERROR_BAD_MODULE);
 750         }
 751
 752         if (private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
 753                 tdm_func_capture *func_capture = &private_display->func_capture;
 754                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capture_capability, TDM_ERROR_BAD_MODULE);
 755                 if (private_display->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)
 756                         TDM_RETURN_VAL_IF_FAIL(func_output->output_create_capture, TDM_ERROR_BAD_MODULE);
 757                 if (private_display->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)
 758                         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_create_capture, TDM_ERROR_BAD_MODULE);
 759                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_destroy, TDM_ERROR_BAD_MODULE);
 760                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_commit, TDM_ERROR_BAD_MODULE);
 761                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_set_done_handler, TDM_ERROR_BAD_MODULE);
 762         }
 763
 764         return TDM_ERROR_NONE;
 765 }
 766
 767 static tdm_error
 768 _tdm_display_load_module_with_file(tdm_private_display *private_display,
 769                                                                    const char *file)
 770 {
 771         char path[PATH_MAX] = {0,};
 772         tdm_backend_module *module_data;
 773         void *module;
 774         tdm_error ret;
 775         double stamp;
 776
 777         snprintf(path, sizeof(path), TDM_MODULE_PATH "/%s", file);
 778
 779         stamp = tdm_helper_get_time();
 780         TDM_TRACE_BEGIN(Load_Backend);
 781
 782         module = dlopen(path, RTLD_LAZY);
 783         if (!module) {
 784                 TDM_ERR("failed to load module: %s(%s)", dlerror(), file);
 785                 TDM_TRACE_END();
 786                 return TDM_ERROR_BAD_MODULE;
 787         }
 788
 789         module_data = dlsym(module, "tdm_backend_module_data");
 790         if (!module_data) {
 791                 TDM_ERR("'%s' doesn't have data object", file);
 792                 ret = TDM_ERROR_BAD_MODULE;
 793                 TDM_TRACE_END();
 794                 goto failed_load;
 795         }
 796
 797         TDM_DBG("dlopen, dlsym time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 798
 799         private_display->module_data = module_data;
 800         private_display->module = module;
 801
 802         /* check if version, init() and deinit() are valid or not */
 803         ret = _tdm_display_check_module(module_data);
 804         if (ret != TDM_ERROR_NONE)
 805                 goto failed_load;
 806
 807         TDM_TRACE_END();
 808
 809         /* We don't care if backend_data is NULL or not. It's up to backend. */
 810         TDM_TRACE_BEGIN(Init_Backend);
 811         stamp = tdm_helper_get_time();
 812         private_display->bdata = module_data->init((tdm_display *)private_display, &ret);
 813         TDM_DBG("backend init() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 814         TDM_TRACE_END();
 815
 816         if (ret != TDM_ERROR_NONE) {
 817                 TDM_ERR("failed to init '%s' module", module_data->name);
 818                 goto failed_load;
 819         }
 820
 821         ret = _tdm_display_check_backend_functions(private_display);
 822         if (ret != TDM_ERROR_NONE) {
 823                 module_data->deinit(private_display->bdata);
 824                 private_display->bdata = NULL;
 825                 goto failed_load;
 826         }
 827
 828         TDM_INFO("Success to load '%s' module", module_data->name);
 829
 830         return TDM_ERROR_NONE;
 831 failed_load:
 832         dlclose(module);
 833         private_display->module_data = NULL;
 834         private_display->module = NULL;
 835         return ret;
 836 }
 837
 838 static tdm_error
 839 _tdm_display_load_module(tdm_private_display *private_display)
 840 {
 841         const char *module_name;
 842         struct dirent **namelist;
 843         int n;
 844         tdm_error ret = 0;
 845
 846         module_name = getenv("TDM_MODULE");
 847         if (!module_name)
 848                 module_name = TDM_DEFAULT_MODULE;
 849
 850         /* load bufmgr priv from default lib */
 851         ret = _tdm_display_load_module_with_file(private_display, module_name);
 852         if (ret == TDM_ERROR_NONE)
 853                 return TDM_ERROR_NONE;
 854
 855         /* load bufmgr priv from dummy lib */
 856         ret = _tdm_display_load_module_with_file(private_display, TDM_DUMMY_MODULE);
 857         if (ret == TDM_ERROR_NONE)
 858                 return TDM_ERROR_NONE;
 859
 860         /* load bufmgr priv from configured path */
 861         n = scandir(TDM_MODULE_PATH, &namelist, 0, alphasort);
 862         if (n < 0) {
 863                 TDM_ERR("no module in '%s'\n", TDM_MODULE_PATH);
 864                 return TDM_ERROR_BAD_MODULE;
 865         }
 866
 867         ret = TDM_ERROR_BAD_MODULE;
 868         while (n--) {
 869                 if (ret < 0 && strstr(namelist[n]->d_name, SUFFIX_MODULE))
 870                         ret = _tdm_display_load_module_with_file(private_display, namelist[n]->d_name);
 871
 872                 free(namelist[n]);
 873         }
 874         free(namelist);
 875
 876         return ret;
 877 }
 878
 879 static void
 880 _tdm_display_unload_module(tdm_private_display *private_display)
 881 {
 882         if (private_display->module_data)
 883                 private_display->module_data->deinit(private_display->bdata);
 884         if (private_display->module)
 885                 dlclose(private_display->module);
 886
 887         private_display->bdata = NULL;
 888         private_display->module_data = NULL;
 889         private_display->module = NULL;
 890 }
 891
 892 EXTERN tdm_display *
 893 tdm_display_init(tdm_error *error)
 894 {
 895         tdm_private_display *private_display = NULL;
 896         const char *str;
 897         tdm_error ret;
 898         double stamp1, stamp2, start;
 899
 900         pthread_mutex_lock(&gLock);
 901
 902         if (g_private_display) {
 903                 g_private_display->init_count++;
 904                 pthread_mutex_unlock(&gLock);
 905                 if (error)
 906                         *error = TDM_ERROR_NONE;
 907                 return g_private_display;
 908         }
 909
 910         start = stamp1 = tdm_helper_get_time();
 911
 912         private_display = calloc(1, sizeof(tdm_private_display));
 913         if (!private_display) {
 914                 ret = TDM_ERROR_OUT_OF_MEMORY;
 915                 TDM_ERR("'private_display != NULL' failed");
 916                 goto failed_alloc;
 917         }
 918
 919         str = getenv("TDM_DEBUG_MODULE");
 920         if (str)
 921                 tdm_display_enable_debug_module(str);
 922
 923         str = getenv("TDM_DEBUG_DUMP");
 924         if (str)
 925                 tdm_display_enable_dump(private_display, str, NULL, NULL);
 926
 927         str = getenv("TDM_DEBUG_PATH");
 928         if (str)
 929                 tdm_display_enable_path(str);
 930
 931         str = getenv("TDM_COMMIT_PER_VBLANK");
 932         if (str) {
 933                 char *end;
 934                 int enable = strtol(str, &end, 10);
 935
 936                 tdm_display_enable_commit_per_vblank(private_display, enable);
 937         }
 938
 939         if (pthread_mutex_init(&private_display->lock, NULL)) {
 940                 ret = TDM_ERROR_OPERATION_FAILED;
 941                 TDM_ERR("mutex init failed: %m");
 942                 goto failed_mutex_init;
 943         }
 944
 945         _pthread_mutex_lock(&private_display->lock);
 946
 947         stamp2 = tdm_helper_get_time();
 948         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 949         stamp1 = stamp2;
 950
 951         ret = tdm_event_loop_init(private_display);
 952         if (ret != TDM_ERROR_NONE)
 953                 goto failed_event;
 954
 955         stamp2 = tdm_helper_get_time();
 956         TDM_DBG("creating event loop time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 957         stamp1 = stamp2;
 958
 959         ret = _tdm_display_load_module(private_display);
 960         if (ret != TDM_ERROR_NONE)
 961                 goto failed_load;
 962
 963         stamp2 = tdm_helper_get_time();
 964         TDM_DBG("loading backend time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 965         stamp1 = stamp2;
 966
 967 #ifdef INIT_BUFMGR
 968         int tdm_drm_fd = tdm_helper_get_fd("TDM_DRM_MASTER_FD");
 969         if (tdm_drm_fd >= 0) {
 970                 private_display->bufmgr = tbm_bufmgr_init(tdm_drm_fd);
 971                 close(tdm_drm_fd);
 972                 if (!private_display->bufmgr) {
 973                         TDM_ERR("tbm_bufmgr_init failed");
 974                         goto failed_update;
 975                 } else {
 976                         TDM_INFO("tbm_bufmgr_init successed");
 977                 }
 978
 979                 stamp2 = tdm_helper_get_time();
 980                 TDM_DBG("initializing bufmgr time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 981                 stamp1 = stamp2;
 982         }
 983 #endif
 984
 985         TDM_TRACE_BEGIN(Update_Display);
 986         ret = _tdm_display_update_internal(private_display, 0);
 987         TDM_TRACE_END();
 988         if (ret != TDM_ERROR_NONE)
 989                 goto failed_update;
 990
 991         stamp2 = tdm_helper_get_time();
 992         TDM_DBG("updating display time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 993         stamp1 = stamp2;
 994
 995         tdm_event_loop_create_backend_source(private_display);
 996
 997         private_display->init_count = 1;
 998         private_display->commit_type = TDM_COMMIT_TYPE_NONE;
 999
1000         g_private_display = private_display;
1001
1002         if (error)
1003                 *error = TDM_ERROR_NONE;
1004
1005         _pthread_mutex_unlock(&private_display->lock);
1006         pthread_mutex_unlock(&gLock);
1007
1008         TDM_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1009
1010         return (tdm_display *)private_display;
1011
1012 failed_update:
1013         _tdm_display_unload_module(private_display);
1014 failed_load:
1015         tdm_event_loop_stop(private_display);
1016         tdm_event_loop_deinit(private_display);
1017 failed_event:
1018         _pthread_mutex_unlock(&private_display->lock);
1019         pthread_mutex_destroy(&private_display->lock);
1020 failed_mutex_init:
1021         free(private_display);
1022 failed_alloc:
1023         if (error)
1024                 *error = ret;
1025         pthread_mutex_unlock(&gLock);
1026         return NULL;
1027 }
1028
1029 EXTERN void
1030 tdm_display_deinit(tdm_display *dpy)
1031 {
1032         tdm_private_display *private_display = dpy;
1033
1034         if (!private_display)
1035                 return;
1036
1037         pthread_mutex_lock(&gLock);
1038
1039         private_display->init_count--;
1040         if (private_display->init_count > 0) {
1041                 pthread_mutex_unlock(&gLock);
1042                 return;
1043         }
1044
1045         /* dont move the position of lock/unlock. all resource should be protected
1046          * during destroying. after tdm_event_loop_deinit, we don't worry about thread
1047          * things because it's finalized.
1048          */
1049         _pthread_mutex_lock(&private_display->lock);
1050         tdm_event_loop_stop(private_display);
1051         _tdm_display_destroy_private_display(private_display);
1052         _tdm_display_unload_module(private_display);
1053         _pthread_mutex_unlock(&private_display->lock);
1054
1055         tdm_event_loop_deinit(private_display);
1056
1057 #ifdef INIT_BUFMGR
1058         if (private_display->bufmgr)
1059                 tbm_bufmgr_deinit(private_display->bufmgr);
1060 #endif
1061
1062         tdm_helper_set_fd("TDM_DRM_MASTER_FD", -1);
1063
1064         pthread_mutex_destroy(&private_display->lock);
1065         free(private_display);
1066         g_private_display = NULL;
1067
1068         if (tdm_debug_dump_dir) {
1069                 free(tdm_debug_dump_dir);
1070                 tdm_debug_dump_dir = NULL;
1071         }
1072
1073         pthread_mutex_unlock(&gLock);
1074
1075         TDM_INFO("done");
1076 }
1077
1078 INTERN int
1079 tdm_display_check_module_abi(tdm_private_display *private_display, int abimaj, int abimin)
1080 {
1081         tdm_backend_module *module = private_display->module_data;
1082
1083         if (TDM_BACKEND_GET_ABI_MAJOR(module->abi_version) < abimaj)
1084                 return 0;
1085
1086         if (TDM_BACKEND_GET_ABI_MINOR(module->abi_version) < abimin)
1087                 return 0;
1088
1089         return 1;
1090 }
1091
1092 INTERN tdm_error
1093 tdm_display_enable_debug_module(const char*modules)
1094 {
1095         char temp[TDM_PATH_LEN];
1096         char *arg;
1097         char *end;
1098
1099         snprintf(temp, TDM_PATH_LEN, "%s", modules);
1100
1101         tdm_debug_module = 0;
1102
1103         arg = strtok_r(temp, TDM_DELIM, &end);
1104         while (arg) {
1105                 if (!strncmp(arg, "none", 4)) {
1106                         tdm_debug_module = 0;
1107                         return TDM_ERROR_NONE;
1108                 }
1109                 if (!strncmp(arg, "all", 3)) {
1110                         tdm_debug_module = 0xFFFFFFFF;
1111                         return TDM_ERROR_NONE;
1112                 }
1113                 if (!strncmp(arg, "buffer", 6))
1114                         tdm_debug_module |= TDM_DEBUG_BUFFER;
1115                 else if (!strncmp(arg, "thread", 6))
1116                         tdm_debug_module |= TDM_DEBUG_THREAD;
1117                 else if (!strncmp(arg, "mutex", 5))
1118                         tdm_debug_module |= TDM_DEBUG_MUTEX;
1119                 else if (!strncmp(arg, "vblank", 6))
1120                         tdm_debug_module |= TDM_DEBUG_VBLANK;
1121                 else if (!strncmp(arg, "commit", 6))
1122                         tdm_debug_module |= TDM_DEBUG_COMMIT;
1123                 else
1124                         return TDM_ERROR_BAD_REQUEST;
1125
1126                 arg = strtok_r(NULL, TDM_DELIM, &end);
1127         }
1128
1129         TDM_INFO("module debugging... '%s'", modules);
1130
1131         return TDM_ERROR_NONE;
1132 }
1133
1134 INTERN tdm_error
1135 tdm_display_enable_dump(tdm_private_display *private_display, const char *dump_str, char *reply, int *len)
1136 {
1137         char temp[TDM_PATH_LEN] = {0,}, temp2[TDM_PATH_LEN] = {0,};
1138         char *path = NULL, *path2;
1139         char *arg;
1140         char *end;
1141
1142         snprintf(temp2, TDM_PATH_LEN, "%s", dump_str);
1143         path2 = strtostr(temp, TDM_PATH_LEN, temp2, "@");
1144         if (!path2 || path2[0] == '\0')
1145                 path2 = TDM_DUMP_DIR;
1146         else
1147                 path2++;
1148
1149         tdm_debug_dump = 0;
1150
1151         snprintf(temp, sizeof(temp), "%s", dump_str);
1152         arg = strtok_r(temp, ",", &end);
1153         TDM_GOTO_IF_FAIL(arg != NULL, done);
1154
1155         if (!strncmp(arg, "none", 4)) {
1156                 tdm_debug_dump = 0;
1157                 TDM_SNPRINTF(reply, len, "path: %s\n", (tdm_debug_dump_dir) ? : "unknown");
1158                 if (tdm_debug_dump_dir) {
1159                         free(tdm_debug_dump_dir);
1160                         tdm_debug_dump_dir = NULL;
1161                 }
1162                 goto done;
1163         }
1164
1165         path = tdm_helper_dump_make_directory(path2, reply, len);
1166         TDM_GOTO_IF_FAIL(path != NULL, done);
1167
1168         if (!strncmp(arg, "current", 7)) {
1169                 tdm_private_output *o = NULL;
1170                 if (!private_display) {
1171                         TDM_WRN("no private_display");
1172                         goto done;
1173                 }
1174
1175                 LIST_FOR_EACH_ENTRY(o, &private_display->output_list, link) {
1176                         tdm_private_layer *l = NULL;
1177                         LIST_FOR_EACH_ENTRY(l, &o->layer_list, link) {
1178                                 char str[TDM_PATH_LEN];
1179                                 if (l->usable || l->caps.capabilities & TDM_LAYER_CAPABILITY_VIDEO)
1180                                         continue;
1181                                 if (!l->showing_buffer)
1182                                         continue;
1183                                 snprintf(str, TDM_PATH_LEN, "layer_%d_%d", o->index, l->index);
1184                                 tdm_helper_dump_buffer_str(l->showing_buffer->buffer, path, str);
1185                         }
1186                 }
1187
1188                 TDM_SNPRINTF(reply, len, "path: %s\n", path);
1189                 goto done;
1190         }
1191
1192         TDM_SNPRINTF(reply, len, "dump: %s\n", arg);
1193
1194         while (arg) {
1195                 if (!strncmp(arg, "all", 3)) {
1196                         tdm_debug_dump = 0xFFFFFFFF;
1197                         goto done;
1198                 } else if (!strncmp(arg, "layer", 5)) {
1199                         tdm_debug_dump |= TDM_DUMP_FLAG_LAYER;
1200                 } else if (!strncmp(arg, "pp", 2)) {
1201                         tdm_debug_dump |= TDM_DUMP_FLAG_PP;
1202                 } else if (!strncmp(arg, "capture", 7)) {
1203                         tdm_debug_dump |= TDM_DUMP_FLAG_CAPTURE;
1204                 } else
1205                         goto done;
1206
1207                 arg = strtok_r(NULL, ",", &end);
1208         }
1209
1210         if (tdm_debug_dump_dir)
1211                 free(tdm_debug_dump_dir);
1212
1213         tdm_debug_dump_dir = strndup(path, TDM_PATH_LEN);
1214
1215         TDM_INFO("dump... '%s'", dump_str);
1216
1217 done:
1218         if (path)
1219                 free(path);
1220
1221         return TDM_ERROR_NONE;
1222 }
1223
1224 INTERN tdm_error
1225 tdm_display_enable_path(const char *path)
1226 {
1227         static int old_stdout = -1;
1228         char fd_name[TDM_PATH_LEN];
1229         int  log_fd = -1;
1230         FILE *log_fl;
1231
1232         if (old_stdout == -1)
1233                 old_stdout = dup(STDOUT_FILENO);
1234
1235         tdm_log_enable_dlog(0);
1236
1237         snprintf(fd_name, TDM_PATH_LEN, "%s", path);
1238
1239         log_fl = fopen(fd_name, "a");
1240         if (!log_fl) {
1241                 TDM_ERR("failed: open file(%s)\n", fd_name);
1242                 return TDM_ERROR_OPERATION_FAILED;
1243         }
1244
1245         fflush(stderr);
1246         close(STDOUT_FILENO);
1247
1248         setvbuf(log_fl, NULL, _IOLBF, 512);
1249         log_fd = fileno(log_fl);
1250
1251         dup2(log_fd, STDOUT_FILENO);
1252         fclose(log_fl);
1253
1254         return TDM_ERROR_NONE;
1255 }
1256
1257
1258 static void
1259 _tdm_display_ttrace_vblank_cb(tdm_vblank *vblank, tdm_error error, unsigned int sequence,
1260                                                           unsigned int tv_sec, unsigned int tv_usec, void *user_data)
1261 {
1262         tdm_error ret = TDM_ERROR_NONE;
1263
1264         TDM_TRACE_MARK(VBlank);
1265
1266         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1267         TDM_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
1268 }
1269
1270 INTERN tdm_error
1271 tdm_display_enable_ttrace_vblank(tdm_display *dpy, tdm_output *output, int enable)
1272 {
1273         static tdm_vblank *vblank = NULL;
1274         tdm_error ret = TDM_ERROR_NONE;
1275
1276         if (!enable) {
1277                 if (vblank)
1278                         tdm_vblank_destroy(vblank);
1279                 vblank = NULL;
1280                 return TDM_ERROR_NONE;
1281         } else {
1282                 const tdm_output_mode *mode = NULL;
1283
1284                 if (vblank)
1285                         return TDM_ERROR_NONE;
1286
1287                 vblank = tdm_vblank_create(dpy, output, &ret);
1288                 TDM_RETURN_VAL_IF_FAIL(vblank != NULL, ret);
1289
1290                 ret = tdm_output_get_mode(output, &mode);
1291                 TDM_GOTO_IF_FAIL(mode != NULL, enable_fail);
1292
1293                 ret = tdm_vblank_set_fps(vblank, mode->vrefresh);
1294                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1295
1296                 ret = tdm_vblank_set_enable_fake(vblank, 1);
1297                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1298
1299                 ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1300                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1301         }
1302
1303         return TDM_ERROR_NONE;
1304
1305 enable_fail:
1306         if (vblank)
1307                 tdm_vblank_destroy(vblank);
1308         vblank = NULL;
1309         return ret;
1310 }
1311
1312 INTERN tdm_error
1313 tdm_display_enable_commit_per_vblank(tdm_private_display *private_display, int enable)
1314 {
1315         private_display->commit_per_vblank = enable;
1316
1317         if (private_display->commit_per_vblank == 0)
1318                 TDM_INFO("commit per vblank: disable");
1319         else if (private_display->commit_per_vblank == 1)
1320                 TDM_INFO("commit per vblank: enable (1 layer)");
1321         else if (private_display->commit_per_vblank == 2)
1322                 TDM_INFO("commit per vblank: enable (previous commit)");
1323         else {
1324                 private_display->commit_per_vblank = 1;
1325                 TDM_INFO("commit per vblank: enable (changed to 1 layer)");
1326         }
1327
1328         return TDM_ERROR_NONE;
1329 }
1330
1331 INTERN tdm_error
1332 tdm_display_enable_fps(tdm_private_display *private_display, int enable)
1333 {
1334         private_display->print_fps = enable;
1335
1336         TDM_INFO("print fps: %s", (enable) ? "enable" : "disable");
1337
1338         return TDM_ERROR_NONE;
1339 }