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->hwc_window_list);
 406                 LIST_INITHEAD(&private_output->capture_list);
 407                 LIST_INITHEAD(&private_output->vblank_handler_list);
 408                 LIST_INITHEAD(&private_output->output_commit_handler_list);
 409                 LIST_INITHEAD(&private_output->layer_commit_handler_list);
 410                 LIST_INITHEAD(&private_output->pending_commit_handler_list);
 411                 LIST_INITHEAD(&private_output->change_handler_list_main);
 412                 LIST_INITHEAD(&private_output->change_handler_list_sub);
 413
 414                 if (func_output->output_set_status_handler) {
 415                         func_output->output_set_status_handler(private_output->output_backend,
 416                                                                                                    tdm_output_cb_status,
 417                                                                                                    private_output);
 418                         private_output->regist_change_cb = 1;
 419                 }
 420
 421                 ret = _tdm_display_update_caps_output(private_display, pipe, output_backend,
 422                                                                                           &private_output->caps);
 423                 if (ret != TDM_ERROR_NONE)
 424                         return ret;
 425         } else {
 426                 tdm_caps_output new_caps;
 427
 428                 ret = _tdm_display_update_caps_output(private_display, pipe, output_backend,
 429                                                                                           &new_caps);
 430                 if (ret != TDM_ERROR_NONE)
 431                         return ret;
 432
 433                 /* FIXME: This is very ugly. need to fix after the TDM ABI is changed. */
 434                 if (private_output->caps.status != new_caps.status) {
 435                         _tdm_display_destroy_caps_output(&private_output->caps);
 436                         private_output->caps = new_caps;
 437                         private_output->current_mode = NULL;
 438                 } else {
 439                         tdm_output_mode *old_modes = private_output->caps.modes;
 440                         unsigned int old_mode_count = private_output->caps.mode_count;
 441                         if (new_caps.modes)
 442                                 free(new_caps.modes);
 443                         new_caps.modes = old_modes;
 444                         new_caps.mode_count = old_mode_count;
 445                         if (private_output->caps.props)
 446                                 free(private_output->caps.props);
 447                         private_output->caps = new_caps;
 448                 }
 449         }
 450
 451         layers = func_output->output_get_layers(output_backend, &layer_count, &ret);
 452         if (ret != TDM_ERROR_NONE)
 453                 goto failed_update;
 454
 455         for (i = 0; i < layer_count; i++) {
 456                 ret = _tdm_display_update_layer(private_display, private_output, layers[i], i);
 457                 if (ret != TDM_ERROR_NONE)
 458                         goto failed_update;
 459         }
 460
 461         free(layers);
 462
 463         return TDM_ERROR_NONE;
 464 failed_update:
 465         _tdm_display_destroy_private_output(private_output);
 466         free(layers);
 467         return ret;
 468 }
 469
 470 static tdm_output **
 471 _tdm_display_set_main_first(tdm_output **outputs, int index)
 472 {
 473         tdm_output *output_tmp = NULL;
 474
 475         if (index == 0)
 476                 return outputs;
 477
 478         output_tmp = outputs[0];
 479         outputs[0] = outputs[index];
 480         outputs[index] = output_tmp;
 481
 482         return outputs;
 483 }
 484
 485 static tdm_output **
 486 _tdm_display_get_ordered_outputs(tdm_private_display *private_display, int *count)
 487 {
 488         tdm_func_display *func_display = &private_display->func_display;
 489         tdm_output **outputs = NULL;
 490         tdm_output **new_outputs = NULL;
 491         tdm_output *output_dsi = NULL;
 492         tdm_output *output_lvds = NULL;
 493         tdm_output *output_hdmia = NULL;
 494         tdm_output *output_hdmib = NULL;
 495         int i, output_count = 0, output_connected_count = 0;
 496         int index_dsi = 0, index_lvds = 0, index_hdmia = 0, index_hdmib = 0;
 497         tdm_error ret;
 498
 499         /* don't change list order if not init time */
 500         if (private_display->outputs)
 501                 return private_display->outputs;
 502
 503         outputs = func_display->display_get_outputs(private_display->bdata, &output_count, &ret);
 504         if (ret != TDM_ERROR_NONE)
 505                 goto failed_get_outputs;
 506
 507         *count = output_count;
 508
 509         if (output_count == 0)
 510                 goto failed_get_outputs;
 511         else if (output_count == 1) {
 512                 private_display->outputs = outputs;
 513                 return outputs;
 514         }
 515
 516         /* count connected outputs */
 517         for (i = 0; i < output_count; i++) {
 518                 tdm_func_output *func_output = &private_display->func_output;
 519                 tdm_caps_output caps;
 520                 memset(&caps, 0, sizeof(tdm_caps_output));
 521
 522                 if (!func_output->output_get_capability) {
 523                         TDM_ERR("no output_get_capability()");
 524                         goto failed_get_outputs;
 525                 }
 526
 527                 ret = func_output->output_get_capability(outputs[i], &caps);
 528                 if (ret != TDM_ERROR_NONE) {
 529                         TDM_ERR("output_get_capability() failed");
 530                         goto failed_get_outputs;
 531                 }
 532
 533                 if (caps.status == TDM_OUTPUT_CONN_STATUS_CONNECTED) {
 534                         output_connected_count++;
 535
 536                         switch (caps.type) {
 537                         case TDM_OUTPUT_TYPE_DSI:
 538                                 output_dsi = outputs[i];
 539                                 index_dsi = i;
 540                                 break;
 541                         case TDM_OUTPUT_TYPE_LVDS:
 542                                 output_lvds = outputs[i];
 543                                 index_lvds = i;
 544                                 break;
 545                         case TDM_OUTPUT_TYPE_HDMIA:
 546                                 output_hdmia = outputs[i];
 547                                 index_hdmia = i;
 548                                 break;
 549                         case TDM_OUTPUT_TYPE_HDMIB:
 550                                 output_hdmib = outputs[i];
 551                                 index_hdmib = i;
 552                                 break;
 553                         default:
 554                                 break;
 555                         }
 556                 }
 557
 558                 _tdm_display_destroy_caps_output(&caps);
 559         }
 560
 561         /* ordering : main output is first */
 562         /* If there is no connected output, lvds or dsi cannot be main display. (cannot connect after booting)
 563           * But hdmi is possible, so set hdmi to main display.
 564           * If connected only one output, it is main output.
 565           * If connected outputs over 2, has priority like below.
 566           * (dsi > lvds > hdmi > else)
 567           */
 568         if (output_connected_count == 0) {
 569                 /* hdmi > dsi > lvds > else */
 570                 if (output_hdmia != NULL)
 571                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 572                 else if (output_hdmib != NULL)
 573                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 574                 else if (output_dsi != NULL)
 575                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 576                 else if (output_lvds != NULL)
 577                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 578                 else
 579                         new_outputs = outputs;
 580         } else { /* (output_connected_count > 1) */
 581                 /* dsi > lvds > hdmi > else */
 582                 if (output_dsi != NULL)
 583                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 584                 else if (output_lvds != NULL)
 585                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 586                 else if (output_hdmia != NULL)
 587                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 588                 else if (output_hdmib != NULL)
 589                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 590                 else
 591                         new_outputs = outputs;
 592         }
 593
 594         private_display->outputs = new_outputs;
 595
 596         return new_outputs;
 597
 598 failed_get_outputs:
 599         free(outputs);
 600         *count = 0;
 601         return NULL;
 602 }
 603
 604 static tdm_error
 605 _tdm_display_update_internal(tdm_private_display *private_display,
 606                                                          int only_display)
 607 {
 608         tdm_output **outputs = NULL;
 609         int output_count = 0, i;
 610         tdm_error ret = TDM_ERROR_NONE;
 611
 612         LIST_INITHEAD(&private_display->output_list);
 613         LIST_INITHEAD(&private_display->pp_list);
 614         LIST_INITHEAD(&private_display->capture_list);
 615
 616         if (!only_display) {
 617                 ret = _tdm_display_update_caps_pp(private_display, &private_display->caps_pp);
 618                 if (ret != TDM_ERROR_NONE)
 619                         goto failed_update;
 620
 621                 ret = _tdm_display_update_caps_capture(private_display,
 622                                                                                            &private_display->caps_capture);
 623                 if (ret != TDM_ERROR_NONE)
 624                         goto failed_update;
 625         }
 626
 627         outputs = _tdm_display_get_ordered_outputs(private_display, &output_count);
 628         if (!outputs)
 629                 goto failed_update;
 630
 631         for (i = 0; i < output_count; i++) {
 632                 ret = tdm_display_update_output(private_display, outputs[i], i);
 633                 if (ret != TDM_ERROR_NONE)
 634                         goto failed_update;
 635         }
 636
 637         return TDM_ERROR_NONE;
 638
 639 failed_update:
 640         _tdm_display_destroy_private_display(private_display);
 641         return ret;
 642 }
 643
 644 EXTERN tdm_error
 645 tdm_display_update(tdm_display *dpy)
 646 {
 647         tdm_private_display *private_display;
 648         tdm_error ret;
 649
 650         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 651
 652         private_display = dpy;
 653         _pthread_mutex_lock(&private_display->lock);
 654
 655         ret = _tdm_display_update_internal(private_display, 1);
 656
 657         _pthread_mutex_unlock(&private_display->lock);
 658
 659         return ret;
 660 }
 661
 662 #define SUFFIX_MODULE    ".so"
 663 #define DEFAULT_MODULE   "libtdm-default"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 = 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 configured path */
 856         n = scandir(TDM_MODULE_PATH, &namelist, 0, alphasort);
 857         if (n < 0) {
 858                 TDM_ERR("no module in '%s'\n", TDM_MODULE_PATH);
 859                 return TDM_ERROR_BAD_MODULE;
 860         }
 861
 862         ret = TDM_ERROR_BAD_MODULE;
 863         while (n--) {
 864                 if (ret < 0 && strstr(namelist[n]->d_name, SUFFIX_MODULE))
 865                         ret = _tdm_display_load_module_with_file(private_display, namelist[n]->d_name);
 866
 867                 free(namelist[n]);
 868         }
 869         free(namelist);
 870
 871         return ret;
 872 }
 873
 874 static void
 875 _tdm_display_unload_module(tdm_private_display *private_display)
 876 {
 877         if (private_display->module_data)
 878                 private_display->module_data->deinit(private_display->bdata);
 879         if (private_display->module)
 880                 dlclose(private_display->module);
 881
 882         private_display->bdata = NULL;
 883         private_display->module_data = NULL;
 884         private_display->module = NULL;
 885 }
 886
 887 EXTERN tdm_display *
 888 tdm_display_init(tdm_error *error)
 889 {
 890         tdm_private_display *private_display = NULL;
 891         const char *str;
 892         tdm_error ret;
 893         double stamp1, stamp2, start;
 894
 895         pthread_mutex_lock(&gLock);
 896
 897         if (g_private_display) {
 898                 g_private_display->init_count++;
 899                 pthread_mutex_unlock(&gLock);
 900                 if (error)
 901                         *error = TDM_ERROR_NONE;
 902                 return g_private_display;
 903         }
 904
 905         start = stamp1 = tdm_helper_get_time();
 906
 907         private_display = calloc(1, sizeof(tdm_private_display));
 908         if (!private_display) {
 909                 ret = TDM_ERROR_OUT_OF_MEMORY;
 910                 TDM_ERR("'private_display != NULL' failed");
 911                 goto failed_alloc;
 912         }
 913
 914         str = getenv("TDM_DEBUG_MODULE");
 915         if (str)
 916                 tdm_display_enable_debug_module(str);
 917
 918         str = getenv("TDM_DEBUG_DUMP");
 919         if (str)
 920                 tdm_display_enable_dump(private_display, str, NULL, NULL);
 921
 922         str = getenv("TDM_DEBUG_PATH");
 923         if (str)
 924                 tdm_display_enable_path(str);
 925
 926         str = getenv("TDM_COMMIT_PER_VBLANK");
 927         if (str) {
 928                 char *end;
 929                 int enable = strtol(str, &end, 10);
 930
 931                 tdm_display_enable_commit_per_vblank(private_display, enable);
 932         }
 933
 934         str = getenv("TDM_HWC");
 935         if (str) {
 936                 char *end;
 937                 int enable = strtol(str, &end, 10);
 938                 private_display->hwc_enable = enable;
 939         }
 940
 941         if (pthread_mutex_init(&private_display->lock, NULL)) {
 942                 ret = TDM_ERROR_OPERATION_FAILED;
 943                 TDM_ERR("mutex init failed: %m");
 944                 goto failed_mutex_init;
 945         }
 946
 947         _pthread_mutex_lock(&private_display->lock);
 948
 949         stamp2 = tdm_helper_get_time();
 950         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 951         stamp1 = stamp2;
 952
 953         ret = tdm_event_loop_init(private_display);
 954         if (ret != TDM_ERROR_NONE)
 955                 goto failed_event;
 956
 957         stamp2 = tdm_helper_get_time();
 958         TDM_DBG("creating event loop time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 959         stamp1 = stamp2;
 960
 961         ret = _tdm_display_load_module(private_display);
 962         if (ret != TDM_ERROR_NONE)
 963                 goto failed_load;
 964
 965         if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_HWC))
 966                 private_display->hwc_enable = 0;
 967
 968         stamp2 = tdm_helper_get_time();
 969         TDM_DBG("loading backend time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 970         stamp1 = stamp2;
 971
 972 #ifdef INIT_BUFMGR
 973         int tdm_drm_fd = tdm_helper_get_fd("TDM_DRM_MASTER_FD");
 974         if (tdm_drm_fd >= 0) {
 975                 private_display->bufmgr = tbm_bufmgr_init(tdm_drm_fd);
 976                 close(tdm_drm_fd);
 977                 if (!private_display->bufmgr) {
 978                         TDM_ERR("tbm_bufmgr_init failed");
 979                         goto failed_update;
 980                 } else {
 981                         TDM_INFO("tbm_bufmgr_init successed");
 982                 }
 983
 984                 stamp2 = tdm_helper_get_time();
 985                 TDM_DBG("initializing bufmgr time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 986                 stamp1 = stamp2;
 987         }
 988 #endif
 989
 990         TDM_TRACE_BEGIN(Update_Display);
 991         ret = _tdm_display_update_internal(private_display, 0);
 992         TDM_TRACE_END();
 993         if (ret != TDM_ERROR_NONE)
 994                 goto failed_update;
 995
 996         stamp2 = tdm_helper_get_time();
 997         TDM_DBG("updating display time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 998         stamp1 = stamp2;
 999
1000         tdm_event_loop_create_backend_source(private_display);
1001
1002         private_display->init_count = 1;
1003         private_display->commit_type = TDM_COMMIT_TYPE_NONE;
1004
1005         g_private_display = private_display;
1006
1007         if (error)
1008                 *error = TDM_ERROR_NONE;
1009
1010         _pthread_mutex_unlock(&private_display->lock);
1011         pthread_mutex_unlock(&gLock);
1012
1013         TDM_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1014
1015         return (tdm_display *)private_display;
1016
1017 failed_update:
1018         _tdm_display_unload_module(private_display);
1019 failed_load:
1020         tdm_event_loop_deinit(private_display);
1021 failed_event:
1022         _pthread_mutex_unlock(&private_display->lock);
1023         pthread_mutex_destroy(&private_display->lock);
1024 failed_mutex_init:
1025         free(private_display);
1026 failed_alloc:
1027         if (error)
1028                 *error = ret;
1029         pthread_mutex_unlock(&gLock);
1030         return NULL;
1031 }
1032
1033 EXTERN void
1034 tdm_display_deinit(tdm_display *dpy)
1035 {
1036         tdm_private_display *private_display = dpy;
1037
1038         if (!private_display)
1039                 return;
1040
1041         pthread_mutex_lock(&gLock);
1042
1043         private_display->init_count--;
1044         if (private_display->init_count > 0) {
1045                 pthread_mutex_unlock(&gLock);
1046                 return;
1047         }
1048
1049         /* dont move the position of lock/unlock. all resource should be protected
1050          * during destroying. after tdm_event_loop_deinit, we don't worry about thread
1051          * things because it's finalized.
1052          */
1053         _pthread_mutex_lock(&private_display->lock);
1054         tdm_event_loop_deinit(private_display);
1055         _pthread_mutex_unlock(&private_display->lock);
1056
1057         _tdm_display_destroy_private_display(private_display);
1058         _tdm_display_unload_module(private_display);
1059
1060 #ifdef INIT_BUFMGR
1061         if (private_display->bufmgr)
1062                 tbm_bufmgr_deinit(private_display->bufmgr);
1063 #endif
1064
1065         tdm_helper_set_fd("TDM_DRM_MASTER_FD", -1);
1066
1067         pthread_mutex_destroy(&private_display->lock);
1068         free(private_display);
1069         g_private_display = NULL;
1070
1071         if (tdm_debug_dump_dir) {
1072                 free(tdm_debug_dump_dir);
1073                 tdm_debug_dump_dir = NULL;
1074         }
1075
1076         pthread_mutex_unlock(&gLock);
1077
1078         TDM_INFO("done");
1079 }
1080
1081 INTERN int
1082 tdm_display_check_module_abi(tdm_private_display *private_display, int abimaj, int abimin)
1083 {
1084         tdm_backend_module *module = private_display->module_data;
1085
1086         if (TDM_BACKEND_GET_ABI_MAJOR(module->abi_version) < abimaj)
1087                 return 0;
1088
1089         if (TDM_BACKEND_GET_ABI_MINOR(module->abi_version) < abimin)
1090                 return 0;
1091
1092         return 1;
1093 }
1094
1095 INTERN tdm_error
1096 tdm_display_enable_debug_module(const char*modules)
1097 {
1098         char temp[TDM_PATH_LEN];
1099         char *arg;
1100         char *end;
1101
1102         snprintf(temp, TDM_PATH_LEN, "%s", modules);
1103
1104         tdm_debug_module = 0;
1105
1106         arg = strtok_r(temp, TDM_DELIM, &end);
1107         while (arg) {
1108                 if (!strncmp(arg, "none", 4)) {
1109                         tdm_debug_module = 0;
1110                         return TDM_ERROR_NONE;
1111                 }
1112                 if (!strncmp(arg, "all", 3)) {
1113                         tdm_debug_module = 0xFFFFFFFF;
1114                         return TDM_ERROR_NONE;
1115                 }
1116                 if (!strncmp(arg, "buffer", 6))
1117                         tdm_debug_module |= TDM_DEBUG_BUFFER;
1118                 else if (!strncmp(arg, "thread", 6))
1119                         tdm_debug_module |= TDM_DEBUG_THREAD;
1120                 else if (!strncmp(arg, "mutex", 5))
1121                         tdm_debug_module |= TDM_DEBUG_MUTEX;
1122                 else if (!strncmp(arg, "vblank", 6))
1123                         tdm_debug_module |= TDM_DEBUG_VBLANK;
1124                 else if (!strncmp(arg, "commit", 6))
1125                         tdm_debug_module |= TDM_DEBUG_COMMIT;
1126                 else
1127                         return TDM_ERROR_BAD_REQUEST;
1128
1129                 arg = strtok_r(NULL, TDM_DELIM, &end);
1130         }
1131
1132         TDM_INFO("module debugging... '%s'", modules);
1133
1134         return TDM_ERROR_NONE;
1135 }
1136
1137 INTERN tdm_error
1138 tdm_display_enable_dump(tdm_private_display *private_display, const char *dump_str, char *reply, int *len)
1139 {
1140         char temp[TDM_PATH_LEN] = {0,}, temp2[TDM_PATH_LEN] = {0,};
1141         char *path = NULL, *path2;
1142         char *arg;
1143         char *end;
1144
1145         snprintf(temp2, TDM_PATH_LEN, "%s", dump_str);
1146         path2 = strtostr(temp, TDM_PATH_LEN, temp2, "@");
1147         if (!path2 || path2[0] == '\0')
1148                 path2 = TDM_DUMP_DIR;
1149         else
1150                 path2++;
1151
1152         tdm_debug_dump = 0;
1153
1154         snprintf(temp, sizeof(temp), "%s", dump_str);
1155         arg = strtok_r(temp, ",", &end);
1156         TDM_GOTO_IF_FAIL(arg != NULL, done);
1157
1158         if (!strncmp(arg, "none", 4)) {
1159                 tdm_debug_dump = 0;
1160                 TDM_SNPRINTF(reply, len, "path: %s\n", (tdm_debug_dump_dir) ? : "unknown");
1161                 if (tdm_debug_dump_dir) {
1162                         free(tdm_debug_dump_dir);
1163                         tdm_debug_dump_dir = NULL;
1164                 }
1165                 goto done;
1166         }
1167
1168         path = tdm_helper_dump_make_directory(path2, reply, len);
1169         TDM_GOTO_IF_FAIL(path != NULL, done);
1170
1171         if (!strncmp(arg, "current", 7)) {
1172                 tdm_private_output *o = NULL;
1173                 if (!private_display) {
1174                         TDM_WRN("no private_display");
1175                         goto done;
1176                 }
1177
1178                 LIST_FOR_EACH_ENTRY(o, &private_display->output_list, link) {
1179                         tdm_private_layer *l = NULL;
1180                         LIST_FOR_EACH_ENTRY(l, &o->layer_list, link) {
1181                                 char str[TDM_PATH_LEN];
1182                                 if (l->usable || l->caps.capabilities & TDM_LAYER_CAPABILITY_VIDEO)
1183                                         continue;
1184                                 if (!l->showing_buffer)
1185                                         continue;
1186                                 snprintf(str, TDM_PATH_LEN, "layer_%d_%d", o->index, l->index);
1187                                 tdm_helper_dump_buffer_str(l->showing_buffer->buffer, path, str);
1188                         }
1189                 }
1190
1191                 TDM_SNPRINTF(reply, len, "path: %s\n", path);
1192                 goto done;
1193         }
1194
1195         TDM_SNPRINTF(reply, len, "dump: %s\n", arg);
1196
1197         while (arg) {
1198                 if (!strncmp(arg, "all", 3)) {
1199                         tdm_debug_dump = 0xFFFFFFFF;
1200                         goto done;
1201                 } else if (!strncmp(arg, "layer", 5)) {
1202                         tdm_debug_dump |= TDM_DUMP_FLAG_LAYER;
1203                 } else if (!strncmp(arg, "pp", 2)) {
1204                         tdm_debug_dump |= TDM_DUMP_FLAG_PP;
1205                 } else if (!strncmp(arg, "capture", 7)) {
1206                         tdm_debug_dump |= TDM_DUMP_FLAG_CAPTURE;
1207                 } else
1208                         goto done;
1209
1210                 arg = strtok_r(NULL, ",", &end);
1211         }
1212
1213         if (tdm_debug_dump_dir)
1214                 free(tdm_debug_dump_dir);
1215
1216         tdm_debug_dump_dir = strndup(path, TDM_PATH_LEN);
1217
1218         TDM_INFO("dump... '%s'", dump_str);
1219
1220 done:
1221         if (path)
1222                 free(path);
1223
1224         return TDM_ERROR_NONE;
1225 }
1226
1227 INTERN tdm_error
1228 tdm_display_enable_path(const char *path)
1229 {
1230         static int old_stdout = -1;
1231         char fd_name[TDM_PATH_LEN];
1232         int  log_fd = -1;
1233         FILE *log_fl;
1234
1235         if (old_stdout == -1)
1236                 old_stdout = dup(STDOUT_FILENO);
1237
1238         tdm_log_enable_dlog(0);
1239
1240         snprintf(fd_name, TDM_PATH_LEN, "%s", path);
1241
1242         log_fl = fopen(fd_name, "a");
1243         if (!log_fl) {
1244                 TDM_ERR("failed: open file(%s)\n", fd_name);
1245                 return TDM_ERROR_OPERATION_FAILED;
1246         }
1247
1248         fflush(stderr);
1249         close(STDOUT_FILENO);
1250
1251         setvbuf(log_fl, NULL, _IOLBF, 512);
1252         log_fd = fileno(log_fl);
1253
1254         dup2(log_fd, STDOUT_FILENO);
1255         fclose(log_fl);
1256
1257         return TDM_ERROR_NONE;
1258 }
1259
1260
1261 static void
1262 _tdm_display_ttrace_vblank_cb(tdm_vblank *vblank, tdm_error error, unsigned int sequence,
1263                                                           unsigned int tv_sec, unsigned int tv_usec, void *user_data)
1264 {
1265         tdm_error ret = TDM_ERROR_NONE;
1266
1267         TDM_TRACE_MARK(VBlank);
1268
1269         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1270         TDM_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
1271 }
1272
1273 INTERN tdm_error
1274 tdm_display_enable_ttrace_vblank(tdm_display *dpy, tdm_output *output, int enable)
1275 {
1276         static tdm_vblank *vblank = NULL;
1277         tdm_error ret = TDM_ERROR_NONE;
1278
1279         if (!enable) {
1280                 if (vblank)
1281                         tdm_vblank_destroy(vblank);
1282                 vblank = NULL;
1283                 return TDM_ERROR_NONE;
1284         } else {
1285                 const tdm_output_mode *mode = NULL;
1286
1287                 if (vblank)
1288                         return TDM_ERROR_NONE;
1289
1290                 vblank = tdm_vblank_create(dpy, output, &ret);
1291                 TDM_RETURN_VAL_IF_FAIL(vblank != NULL, ret);
1292
1293                 ret = tdm_output_get_mode(output, &mode);
1294                 TDM_GOTO_IF_FAIL(mode != NULL, enable_fail);
1295
1296                 ret = tdm_vblank_set_fps(vblank, mode->vrefresh);
1297                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1298
1299                 ret = tdm_vblank_set_enable_fake(vblank, 1);
1300                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1301
1302                 ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1303                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1304         }
1305
1306         return TDM_ERROR_NONE;
1307
1308 enable_fail:
1309         if (vblank)
1310                 tdm_vblank_destroy(vblank);
1311         vblank = NULL;
1312         return ret;
1313 }
1314
1315 INTERN tdm_error
1316 tdm_display_enable_commit_per_vblank(tdm_private_display *private_display, int enable)
1317 {
1318         private_display->commit_per_vblank = enable;
1319
1320         if (private_display->commit_per_vblank == 0)
1321                 TDM_INFO("commit per vblank: disable");
1322         else if (private_display->commit_per_vblank == 1)
1323                 TDM_INFO("commit per vblank: enable (1 layer)");
1324         else if (private_display->commit_per_vblank == 2)
1325                 TDM_INFO("commit per vblank: enable (previous commit)");
1326         else {
1327                 private_display->commit_per_vblank = 1;
1328                 TDM_INFO("commit per vblank: enable (changed to 1 layer)");
1329         }
1330
1331         return TDM_ERROR_NONE;
1332 }
1333
1334 INTERN tdm_error
1335 tdm_display_enable_fps(tdm_private_display *private_display, int enable)
1336 {
1337         private_display->print_fps = enable;
1338
1339         TDM_INFO("print fps: %s", (enable) ? "enable" : "disable");
1340
1341         return TDM_ERROR_NONE;
1342 }