src/compositor.c

   1 /*
   2  * Copyright © 2012-2021 Collabora, Ltd.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining
   5  * a copy of this software and associated documentation files (the
   6  * "Software"), to deal in the Software without restriction, including
   7  * without limitation the rights to use, copy, modify, merge, publish,
   8  * distribute, sublicense, and/or sell copies of the Software, and to
   9  * permit persons to whom the Software is furnished to do so, subject to
  10  * the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial
  14  * portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19  * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  20  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  21  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  */
  25
  26 #include "ivi-compositor.h"
  27 #include "policy.h"
  28
  29 #include <assert.h>
  30 #include <errno.h>
  31 #include <signal.h>
  32 #include <stdarg.h>
  33 #include <stdbool.h>
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <unistd.h>
  38 #include <linux/input.h>
  39
  40 #include <libweston/backend-drm.h>
  41 #include <libweston/backend-wayland.h>
  42 #ifdef HAVE_BACKEND_RDP
  43 #include <libweston/backend-rdp.h>
  44 #endif
  45 #ifdef HAVE_BACKEND_HEADLESS
  46 #include <libweston/backend-headless.h>
  47 #endif
  48 #ifdef HAVE_BACKEND_X11
  49 #include <libweston/backend-x11.h>
  50 #endif
  51 #include <libweston/libweston.h>
  52 #include <libweston/windowed-output-api.h>
  53 #include <libweston/config-parser.h>
  54 #include <libweston/weston-log.h>
  55 #include <weston.h>
  56
  57 #include "shared/os-compatibility.h"
  58 #include "shared/helpers.h"
  59
  60 #include "agl-shell-server-protocol.h"
  61
  62 #ifdef HAVE_REMOTING
  63 #include "remote.h"
  64 #endif
  65
  66 static int cached_tm_mday = -1;
  67 static struct weston_log_scope *log_scope;
  68
  69 struct ivi_compositor *
  70 to_ivi_compositor(struct weston_compositor *ec)
  71 {
  72         return weston_compositor_get_user_data(ec);
  73 }
  74
  75 static struct ivi_output_config *
  76 ivi_init_parsed_options(struct weston_compositor *compositor)
  77 {
  78         struct ivi_compositor *ivi = to_ivi_compositor(compositor);
  79         struct ivi_output_config *config;
  80
  81         config = zalloc(sizeof *config);
  82         if (!config)
  83                 return NULL;
  84
  85         config->width = 0;
  86         config->height = 0;
  87         config->scale = 0;
  88         config->transform = UINT32_MAX;
  89
  90         ivi->parsed_options = config;
  91
  92         return config;
  93 }
  94
  95
  96
  97 static void
  98 sigint_helper(int sig)
  99 {
 100        raise(SIGUSR2);
 101 }
 102
 103 void
 104 ivi_layout_save(struct ivi_compositor *ivi, struct ivi_output *output)
 105 {
 106         struct ivi_output *new_output;
 107         ivi->need_ivi_output_relayout = true;
 108
 109         new_output = zalloc(sizeof(*new_output));
 110
 111         new_output->ivi = ivi;
 112         new_output->background = output->background;
 113
 114         new_output->top = output->top;
 115         new_output->bottom = output->bottom;
 116         new_output->left = output->left;
 117         new_output->right = output->right;
 118
 119         new_output->active = output->active;
 120         new_output->previous_active = output->previous_active;
 121         new_output->name = strdup(output->name);
 122         if (output->app_ids)
 123                 new_output->app_ids = strdup(output->app_ids);
 124
 125         new_output->area = output->area;
 126         new_output->area_saved = output->area_saved;
 127         new_output->area_activation = output->area_activation;
 128
 129         weston_log("saving output layout for output %s\n", new_output->name);
 130
 131         wl_list_insert(&ivi->saved_outputs, &new_output->link);
 132 }
 133
 134 void
 135 ivi_layout_restore(struct ivi_compositor *ivi, struct ivi_output *n_output)
 136 {
 137         struct ivi_output *output = NULL;
 138         struct ivi_output *iter_output;
 139
 140         if (!ivi->need_ivi_output_relayout)
 141                 return;
 142
 143         ivi->need_ivi_output_relayout = false;
 144
 145         wl_list_for_each(iter_output, &ivi->saved_outputs, link) {
 146                 if (strcmp(n_output->name, iter_output->name) == 0) {
 147                         output = iter_output;
 148                         break;
 149                 }
 150         }
 151
 152         if (!output)
 153                 return;
 154
 155         weston_log("restoring output layout for output %s\n", output->name);
 156         n_output->background = output->background;
 157
 158         n_output->top = output->top;
 159         n_output->bottom = output->bottom;
 160         n_output->left = output->left;
 161         n_output->right = output->right;
 162
 163         n_output->active = output->active;
 164         n_output->previous_active = output->previous_active;
 165         if (output->app_ids)
 166                 n_output->app_ids = strdup(output->app_ids);
 167
 168         n_output->area = output->area;
 169         n_output->area_saved = output->area_saved;
 170         n_output->area_activation = output->area_activation;
 171
 172         free(output->app_ids);
 173         free(output->name);
 174         wl_list_remove(&output->link);
 175         free(output);
 176 }
 177
 178 void
 179 ivi_layout_destroy_saved_outputs(struct ivi_compositor *ivi)
 180 {
 181         struct ivi_output *output, *output_next;
 182
 183         wl_list_for_each_safe(output, output_next, &ivi->saved_outputs, link) {
 184                 free(output->app_ids);
 185                 free(output->name);
 186
 187                 wl_list_remove(&output->link);
 188                 free(output);
 189         }
 190 }
 191
 192 static void
 193 handle_output_destroy(struct wl_listener *listener, void *data)
 194 {
 195         struct ivi_output *output;
 196
 197         output = wl_container_of(listener, output, output_destroy);
 198         assert(output->output == data);
 199
 200         if (output->fullscreen_view.fs &&
 201             output->fullscreen_view.fs->view) {
 202                 weston_surface_destroy(output->fullscreen_view.fs->view->surface);
 203                 output->fullscreen_view.fs->view = NULL;
 204         }
 205
 206         ivi_layout_save(output->ivi, output);
 207
 208         output->output = NULL;
 209         wl_list_remove(&output->output_destroy.link);
 210 }
 211
 212 struct ivi_output *
 213 to_ivi_output(struct weston_output *o)
 214 {
 215         struct wl_listener *listener;
 216         struct ivi_output *output;
 217
 218         listener = weston_output_get_destroy_listener(o, handle_output_destroy);
 219         output = wl_container_of(listener, output, output_destroy);
 220
 221         return output;
 222 }
 223
 224 static void
 225 ivi_output_configure_app_id(struct ivi_output *ivi_output)
 226 {
 227         if (ivi_output->config) {
 228                 if (ivi_output->app_ids != NULL)
 229                         return;
 230
 231                 weston_config_section_get_string(ivi_output->config,
 232                                                  "agl-shell-app-id",
 233                                                  &ivi_output->app_ids,
 234                                                  NULL);
 235
 236                 if (ivi_output->app_ids == NULL)
 237                         return;
 238
 239                 weston_log("Will place app_id %s on output %s\n",
 240                                 ivi_output->app_ids, ivi_output->name);
 241         }
 242 }
 243
 244 static struct ivi_output *
 245 ivi_ensure_output(struct ivi_compositor *ivi, char *name,
 246                   struct weston_config_section *config,
 247                   struct weston_head *head)
 248 {
 249         struct ivi_output *output = NULL;
 250         wl_list_for_each(output, &ivi->outputs, link) {
 251                 if (strcmp(output->name, name) == 0) {
 252                         free(name);
 253                         return output;
 254                 }
 255         }
 256
 257         output = zalloc(sizeof *output);
 258         if (!output) {
 259                 free(name);
 260                 return NULL;
 261         }
 262
 263         output->ivi = ivi;
 264         output->name = name;
 265         output->config = config;
 266
 267         if (ivi->simple_output_configure) {
 268                 output->output =
 269                         weston_compositor_create_output_with_head(ivi->compositor,
 270                                                                   head);
 271                 if (!output->output) {
 272                         free(output->name);
 273                         free(output);
 274                         return NULL;
 275                 }
 276
 277                 int ret = ivi->simple_output_configure(output->output);
 278                 if (ret < 0) {
 279                         weston_log("Configuring output \"%s\" failed.\n",
 280                                         weston_head_get_name(head));
 281                         weston_output_destroy(output->output);
 282                         ivi->init_failed = true;
 283                         return NULL;
 284                 }
 285
 286                 if (weston_output_enable(output->output) < 0) {
 287                         weston_log("Enabling output \"%s\" failed.\n",
 288                                         weston_head_get_name(head));
 289                         weston_output_destroy(output->output);
 290                         ivi->init_failed = true;
 291                         return NULL;
 292                 }
 293
 294         } else {
 295                 output->output =
 296                         weston_compositor_create_output(ivi->compositor, name);
 297                 if (!output->output) {
 298                         free(output->name);
 299                         free(output);
 300                         return NULL;
 301                 }
 302         }
 303
 304         output->output_destroy.notify = handle_output_destroy;
 305         weston_output_add_destroy_listener(output->output,
 306                                            &output->output_destroy);
 307
 308         wl_list_insert(&ivi->outputs, &output->link);
 309         ivi_output_configure_app_id(output);
 310         return output;
 311 }
 312
 313 static int
 314 count_heads(struct weston_output *output)
 315 {
 316         struct weston_head *iter = NULL;
 317         int n = 0;
 318
 319         while ((iter = weston_output_iterate_heads(output, iter)))
 320                 ++n;
 321
 322         return n;
 323 }
 324
 325 static void
 326 handle_head_destroy(struct wl_listener *listener, void *data)
 327 {
 328         struct weston_head *head = data;
 329         struct weston_output *output;
 330
 331         wl_list_remove(&listener->link);
 332         free(listener);
 333
 334         output = weston_head_get_output(head);
 335
 336         /* On shutdown path, the output might be already gone. */
 337         if (!output)
 338                 return;
 339
 340         /* We're the last head */
 341         if (count_heads(output) <= 1)
 342                 weston_output_destroy(output);
 343 }
 344
 345 static void
 346 add_head_destroyed_listener(struct weston_head *head)
 347 {
 348         /* We already have a destroy listener */
 349         if (weston_head_get_destroy_listener(head, handle_head_destroy))
 350                 return;
 351
 352         struct wl_listener *listener = zalloc(sizeof *listener);
 353         if (!listener)
 354                 return;
 355
 356         listener->notify = handle_head_destroy;
 357         weston_head_add_destroy_listener(head, listener);
 358 }
 359
 360 static int
 361 drm_configure_output(struct ivi_output *output)
 362 {
 363         struct ivi_compositor *ivi = output->ivi;
 364         struct weston_config_section *section = output->config;
 365         enum weston_drm_backend_output_mode mode =
 366                 WESTON_DRM_BACKEND_OUTPUT_PREFERRED;
 367         char *modeline = NULL;
 368         char *gbm_format = NULL;
 369         char *seat = NULL;
 370
 371         if (section) {
 372                 char *m;
 373                 weston_config_section_get_string(section, "mode", &m, "preferred");
 374
 375                 /* This should have been handled earlier */
 376                 assert(strcmp(m, "off") != 0);
 377
 378                 if (ivi->cmdline.use_current_mode || strcmp(m, "current") == 0) {
 379                         mode = WESTON_DRM_BACKEND_OUTPUT_CURRENT;
 380                 } else if (strcmp(m, "preferred") != 0) {
 381                         modeline = m;
 382                         m = NULL;
 383                 }
 384                 free(m);
 385
 386                 weston_config_section_get_string(section, "gbm-format",
 387                                                  &gbm_format, NULL);
 388
 389                 weston_config_section_get_string(section, "seat", &seat, "");
 390         }
 391
 392         if (ivi->drm_api->set_mode(output->output, mode, modeline) < 0) {
 393                 weston_log("Cannot configure output using weston_drm_output_api.\n");
 394                 free(modeline);
 395                 return -1;
 396         }
 397         free(modeline);
 398
 399         ivi->drm_api->set_gbm_format(output->output, gbm_format);
 400         free(gbm_format);
 401
 402         ivi->drm_api->set_seat(output->output, seat);
 403         free(seat);
 404
 405         return 0;
 406 }
 407
 408 #define WINDOWED_DEFAULT_WIDTH 1024
 409 #define WINDOWED_DEFAULT_HEIGHT 768
 410
 411 static int
 412 windowed_configure_output(struct ivi_output *output)
 413 {
 414         struct ivi_compositor *ivi = output->ivi;
 415         struct weston_config_section *section = output->config;
 416         int width = WINDOWED_DEFAULT_WIDTH;
 417         int height = WINDOWED_DEFAULT_HEIGHT;
 418
 419         if (section) {
 420                 char *mode;
 421
 422                 weston_config_section_get_string(section, "mode", &mode, NULL);
 423                 if (!mode || sscanf(mode, "%dx%d", &width, &height) != 2) {
 424                         weston_log("Invalid mode for output %s. Using defaults.\n",
 425                                    output->name);
 426                         width = WINDOWED_DEFAULT_WIDTH;
 427                         height = WINDOWED_DEFAULT_HEIGHT;
 428                 }
 429                 free(mode);
 430         }
 431
 432         if (ivi->cmdline.width)
 433                 width = ivi->cmdline.width;
 434         if (ivi->cmdline.height)
 435                 height = ivi->cmdline.height;
 436         if (ivi->cmdline.scale)
 437                 weston_output_set_scale(output->output, ivi->cmdline.scale);
 438
 439         if (ivi->window_api->output_set_size(output->output, width, height) < 0) {
 440                 weston_log("Cannot configure output '%s' using weston_windowed_output_api.\n",
 441                            output->name);
 442                 return -1;
 443         }
 444
 445         weston_log("Configured windowed_output_api to %dx%d\n", width, height);
 446
 447         return 0;
 448 }
 449
 450 static int
 451 parse_transform(const char *transform, uint32_t *out)
 452 {
 453         static const struct { const char *name; uint32_t token; } transforms[] = {
 454                 { "normal",             WL_OUTPUT_TRANSFORM_NORMAL },
 455                 { "rotate-90",          WL_OUTPUT_TRANSFORM_90 },
 456                 { "rotate-180",         WL_OUTPUT_TRANSFORM_180 },
 457                 { "rotate-270",         WL_OUTPUT_TRANSFORM_270 },
 458                 { "flipped",            WL_OUTPUT_TRANSFORM_FLIPPED },
 459                 { "flipped-rotate-90",  WL_OUTPUT_TRANSFORM_FLIPPED_90 },
 460                 { "flipped-rotate-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 },
 461                 { "flipped-rotate-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 },
 462         };
 463
 464         for (size_t i = 0; i < ARRAY_LENGTH(transforms); i++)
 465                 if (strcmp(transforms[i].name, transform) == 0) {
 466                         *out = transforms[i].token;
 467                         return 0;
 468                 }
 469
 470         *out = WL_OUTPUT_TRANSFORM_NORMAL;
 471         return -1;
 472 }
 473
 474 int
 475 parse_activation_area(const char *geometry, struct ivi_output *output)
 476 {
 477         int n;
 478         unsigned width, height, x, y;
 479
 480         n = sscanf(geometry, "%ux%u+%u,%u", &width, &height, &x, &y);
 481         if (n != 4) {
 482                 return -1;
 483         }
 484         output->area_activation.width = width;
 485         output->area_activation.height = height;
 486         output->area_activation.x = x;
 487         output->area_activation.y = y;
 488         return 0;
 489 }
 490
 491 static int
 492 configure_output(struct ivi_output *output)
 493 {
 494         struct ivi_compositor *ivi = output->ivi;
 495         struct weston_config_section *section = output->config;
 496         int32_t scale = 1;
 497         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
 498
 499         /*
 500          * This can happen with the wayland backend with 'sprawl'. The config
 501          * is hard-coded, so we don't need to do anything.
 502          */
 503         if (!ivi->drm_api && !ivi->window_api)
 504                 return 0;
 505
 506         if (section) {
 507                 char *t;
 508
 509                 weston_config_section_get_int(section, "scale", &scale, 1);
 510                 weston_config_section_get_string(section, "transform", &t, "normal");
 511                 if (parse_transform(t, &transform) < 0)
 512                         weston_log("Invalid transform \"%s\" for output %s\n",
 513                                    t, output->name);
 514                 weston_config_section_get_string(section, "activation-area", &t, "");
 515                 if (parse_activation_area(t, output) < 0)
 516                         weston_log("Invalid activation-area \"%s\" for output %s\n",
 517                                    t, output->name);
 518                 free(t);
 519         }
 520
 521         weston_output_set_scale(output->output, scale);
 522         weston_output_set_transform(output->output, transform);
 523
 524         if (ivi->drm_api)
 525                 return drm_configure_output(output);
 526         else
 527                 return windowed_configure_output(output);
 528 }
 529
 530 /*
 531  * Reorgainizes the output's add array into two sections.
 532  * add[0..ret-1] are the heads that failed to get attached.
 533  * add[ret..add_len] are the heads that were successfully attached.
 534  *
 535  * The order between elements in each section is stable.
 536  */
 537 static size_t
 538 try_attach_heads(struct ivi_output *output)
 539 {
 540         size_t fail_len = 0;
 541
 542         for (size_t i = 0; i < output->add_len; ++i) {
 543                 if (weston_output_attach_head(output->output, output->add[i]) < 0) {
 544                         struct weston_head *tmp = output->add[i];
 545                         memmove(&output->add[fail_len + 1], output->add[fail_len],
 546                                 sizeof output->add[0] * (i - fail_len));
 547                         output->add[fail_len++] = tmp;
 548                 }
 549         }
 550         return fail_len;
 551 }
 552
 553 /*
 554  * Like try_attach_heads, this reorganizes the output's add array into a failed
 555  * and successful section.
 556  * i is the number of heads that already failed the previous step.
 557  */
 558 static size_t
 559 try_enable_output(struct ivi_output *output, size_t i)
 560 {
 561         for (; i < output->add_len; ++i) {
 562                 struct weston_head *head;
 563
 564                 if (weston_output_enable(output->output) == 0)
 565                         break;
 566
 567                 head = output->add[output->add_len - 1];
 568                 memmove(&output->add[i + 1], &output->add[i],
 569                         sizeof output->add[0] * (output->add_len - i));
 570                 output->add[i] = head;
 571
 572                 weston_head_detach(head);
 573         }
 574
 575         return i;
 576 }
 577
 578 static int
 579 try_attach_enable_heads(struct ivi_output *output)
 580 {
 581         size_t fail_len;
 582         assert(!output->output->enabled);
 583
 584         fail_len = try_attach_heads(output);
 585
 586         if (configure_output(output) < 0)
 587                 return -1;
 588
 589         fail_len = try_enable_output(output, fail_len);
 590
 591         /* All heads failed to be attached */
 592         if (fail_len == output->add_len)
 593                 return -1;
 594
 595         /* For each successful head attached */
 596         for (size_t i = fail_len; i < output->add_len; ++i)
 597                 add_head_destroyed_listener(output->add[i]);
 598
 599         ivi_layout_restore(output->ivi, output);
 600
 601         output->add_len = fail_len;
 602         return 0;
 603 }
 604
 605 static int
 606 process_output(struct ivi_output *output)
 607 {
 608         if (output->output->enabled) {
 609                 output->add_len = try_attach_heads(output);
 610                 return output->add_len == 0 ? 0 : -1;
 611         }
 612
 613         return try_attach_enable_heads(output);
 614 }
 615
 616 static void
 617 head_disable(struct ivi_compositor *ivi, struct weston_head *head)
 618 {
 619         struct weston_output *output;
 620         struct ivi_output *ivi_output;
 621         struct wl_listener *listener;
 622
 623         output = weston_head_get_output(head);
 624         assert(output);
 625
 626         listener = weston_output_get_destroy_listener(output,
 627                                                       handle_output_destroy);
 628         assert(listener);
 629
 630         ivi_output = wl_container_of(listener, ivi_output, output_destroy);
 631         assert(ivi_output->output == output);
 632
 633         weston_head_detach(head);
 634         if (count_heads(ivi_output->output) == 0) {
 635                 if (ivi_output->output) {
 636                         /* ivi_output->output destruction may be deferred in
 637                          * some cases (see drm_output_destroy()), so we need to
 638                          * forcibly trigger the destruction callback now, or
 639                          * otherwise would later access data that we are about
 640                          * to free
 641                          */
 642                         struct weston_output *save = ivi_output->output;
 643
 644                         handle_output_destroy(&ivi_output->output_destroy, save);
 645                         weston_output_destroy(save);
 646                 }
 647         }
 648         wl_list_remove(&ivi_output->link);
 649         free(ivi_output->app_ids);
 650         free(ivi_output);
 651 }
 652
 653 static struct weston_config_section *
 654 find_controlling_output_config(struct weston_config *config,
 655                                const char *name)
 656 {
 657         struct weston_config_section *section;
 658         char *same_as;
 659         int depth = 0;
 660
 661         same_as = strdup(name);
 662         do {
 663                 section = weston_config_get_section(config, "output",
 664                                                     "name", same_as);
 665                 if (!section && depth > 0)
 666                         weston_log("Configuration error: output section reffered"
 667                                    "to by same-as=%s not found.\n", same_as);
 668                 free(same_as);
 669
 670                 if (!section)
 671                         return NULL;
 672
 673                 if (depth++ > 8) {
 674                         weston_log("Configuration error: same-as nested too "
 675                                    "deep for output '%s'.\n", name);
 676                         return NULL;
 677                 }
 678
 679                 weston_config_section_get_string(section, "same-as",
 680                                                  &same_as, NULL);
 681         } while (same_as);
 682
 683         return section;
 684 }
 685
 686 static void
 687 head_prepare_enable(struct ivi_compositor *ivi, struct weston_head *head)
 688 {
 689         const char *name = weston_head_get_name(head);
 690         struct weston_config_section *section;
 691         struct ivi_output *output;
 692         char *output_name = NULL;
 693
 694
 695         section = find_controlling_output_config(ivi->config, name);
 696         if (section) {
 697                 char *mode;
 698
 699                 weston_config_section_get_string(section, "mode", &mode, NULL);
 700                 if (mode && strcmp(mode, "off") == 0) {
 701                         free(mode);
 702                         return;
 703                 }
 704                 free(mode);
 705
 706                 weston_config_section_get_string(section, "name",
 707                                                  &output_name, NULL);
 708         } else {
 709                 output_name = strdup(name);
 710         }
 711
 712         if (!output_name)
 713                 return;
 714
 715         output = ivi_ensure_output(ivi, output_name, section, head);
 716         if (!output)
 717                 return;
 718
 719         if (output->add_len >= ARRAY_LENGTH(output->add))
 720                 return;
 721
 722         output->add[output->add_len++] = head;
 723 }
 724
 725 static void
 726 heads_changed(struct wl_listener *listener, void *arg)
 727 {
 728         struct weston_compositor *compositor = arg;
 729         struct weston_head *head = NULL;
 730         struct ivi_compositor *ivi = to_ivi_compositor(compositor);
 731         struct ivi_output *output;
 732
 733         while ((head = weston_compositor_iterate_heads(ivi->compositor, head))) {
 734                 bool connected = weston_head_is_connected(head);
 735                 bool enabled = weston_head_is_enabled(head);
 736                 bool changed = weston_head_is_device_changed(head);
 737                 bool non_desktop = weston_head_is_non_desktop(head);
 738
 739                 if (connected && !enabled && !non_desktop)
 740                         head_prepare_enable(ivi, head);
 741                 else if (!connected && enabled)
 742                         head_disable(ivi, head);
 743                 else if (enabled && changed)
 744                         weston_log("Detected a monitor change on head '%s', "
 745                                    "not bothering to do anything about it.\n",
 746                                    weston_head_get_name(head));
 747
 748                 weston_head_reset_device_changed(head);
 749         }
 750
 751         wl_list_for_each(output, &ivi->outputs, link) {
 752                 if (output->add_len == 0)
 753                         continue;
 754
 755                 if (process_output(output) < 0) {
 756                         output->add_len = 0;
 757                         ivi->init_failed = true;
 758                 }
 759         }
 760 }
 761
 762 #ifdef HAVE_REMOTING
 763 static int
 764 drm_backend_remoted_output_configure(struct weston_output *output,
 765                                      struct weston_config_section *section,
 766                                      char *modeline,
 767                                      const struct weston_remoting_api *api)
 768 {
 769         char *gbm_format = NULL;
 770         char *seat = NULL;
 771         char *host = NULL;
 772         char *pipeline = NULL;
 773         int port, ret;
 774         int32_t scale = 1;
 775         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
 776         char *trans;
 777
 778         ret = api->set_mode(output, modeline);
 779         if (ret < 0) {
 780                 weston_log("Cannot configure an output \"%s\" using "
 781                                 "weston_remoting_api. Invalid mode\n",
 782                                 output->name);
 783                 return -1;
 784         }
 785
 786         weston_config_section_get_int(section, "scale", &scale, 1);
 787         weston_output_set_scale(output, scale);
 788
 789         weston_config_section_get_string(section, "transform", &trans, "normal");
 790         if (parse_transform(trans, &transform) < 0) {
 791                 weston_log("Invalid transform \"%s\" for output %s\n",
 792                            trans, output->name);
 793         }
 794         weston_output_set_transform(output, transform);
 795
 796         weston_config_section_get_string(section, "gbm-format",
 797                                          &gbm_format, NULL);
 798         api->set_gbm_format(output, gbm_format);
 799         free(gbm_format);
 800
 801         weston_config_section_get_string(section, "seat", &seat, "");
 802
 803         api->set_seat(output, seat);
 804         free(seat);
 805
 806         weston_config_section_get_string(section, "gst-pipeline", &pipeline,
 807                         NULL);
 808         if (pipeline) {
 809                 api->set_gst_pipeline(output, pipeline);
 810                 free(pipeline);
 811                 return 0;
 812         }
 813
 814         weston_config_section_get_string(section, "host", &host, NULL);
 815         weston_config_section_get_int(section, "port", &port, 0);
 816         if (!host || port <= 0 || 65533 < port) {
 817                 weston_log("Cannot configure an output \"%s\". "
 818                                 "Need to specify gst-pipeline or "
 819                                 "host and port (1-65533).\n", output->name);
 820         }
 821         api->set_host(output, host);
 822         free(host);
 823         api->set_port(output, port);
 824
 825         return 0;
 826 }
 827
 828
 829 static int
 830 remote_output_init(struct ivi_output *ivi_output,
 831                    struct weston_compositor *compositor,
 832                    struct weston_config_section *section,
 833                    const struct weston_remoting_api *api)
 834 {
 835         char *output_name, *modeline = NULL;
 836         int ret = -1;
 837
 838         weston_config_section_get_string(section, "name", &output_name, NULL);
 839         if (!output_name)
 840                 return ret;
 841
 842         weston_config_section_get_string(section, "mode", &modeline, "off");
 843         if (strcmp(modeline, "off") == 0)
 844                 goto err;
 845
 846         ivi_output->output = api->create_output(compositor, output_name);
 847         if (!ivi_output->output) {
 848                 weston_log("Cannot create remoted output \"%s\".\n",
 849                                 output_name);
 850                 goto err;
 851         }
 852
 853         ret = drm_backend_remoted_output_configure(ivi_output->output, section,
 854                                                    modeline, api);
 855         if (ret < 0) {
 856                 weston_log("Cannot configure remoted output \"%s\".\n",
 857                                 output_name);
 858                 goto err;
 859         }
 860
 861         if ((ret = weston_output_enable(ivi_output->output)) < 0) {
 862                 weston_log("Enabling remoted output \"%s\" failed.\n",
 863                                 output_name);
 864                 goto err;
 865         }
 866
 867         free(modeline);
 868         free(output_name);
 869         weston_log("remoted output '%s' enabled\n", ivi_output->output->name);
 870
 871         return 0;
 872
 873 err:
 874         free(modeline);
 875         free(output_name);
 876         if (ivi_output->output)
 877                 weston_output_destroy(ivi_output->output);
 878
 879         return ret;
 880 }
 881
 882 static void
 883 ivi_enable_remote_outputs(struct ivi_compositor *ivi)
 884 {
 885         struct weston_config_section *remote_section = NULL;
 886         const char *section_name;
 887         struct weston_config *config = ivi->config;
 888
 889         while (weston_config_next_section(config, &remote_section, &section_name)) {
 890                 if (strcmp(section_name, "remote-output"))
 891                         continue;
 892
 893                 struct ivi_output *ivi_output = NULL;
 894                 bool output_found = false;
 895                 char *_name = NULL;
 896
 897                 weston_config_section_get_string(remote_section,
 898                                                  "name", &_name, NULL);
 899                 wl_list_for_each(ivi_output, &ivi->outputs, link) {
 900                         if (!strcmp(ivi_output->name, _name)) {
 901                                 output_found = true;
 902                                 break;
 903                         }
 904                 }
 905
 906                 if (output_found) {
 907                         free(_name);
 908                         continue;
 909                 }
 910
 911                 ivi_output = zalloc(sizeof(*ivi_output));
 912                 if (!ivi_output) {
 913                         free(_name);
 914                         continue;
 915                 }
 916
 917                 ivi_output->ivi = ivi;
 918                 ivi_output->name = _name;
 919                 ivi_output->config = remote_section;
 920                 ivi_output->type = OUTPUT_REMOTE;
 921
 922                 if (remote_output_init(ivi_output, ivi->compositor,
 923                                        remote_section, ivi->remoting_api)) {
 924                         free(ivi_output->name);
 925                         free(ivi_output);
 926                         continue;
 927                 }
 928
 929                 ivi_output->output_destroy.notify = handle_output_destroy;
 930                 weston_output_add_destroy_listener(ivi_output->output,
 931                                                    &ivi_output->output_destroy);
 932
 933                 wl_list_insert(&ivi->outputs, &ivi_output->link);
 934                 ivi_output_configure_app_id(ivi_output);
 935         }
 936 }
 937
 938 static int
 939 load_remoting_plugin(struct ivi_compositor *ivi, struct weston_config *config)
 940 {
 941         struct weston_compositor *compositor = ivi->compositor;
 942         int (*module_init)(struct weston_compositor *wc);
 943
 944         module_init = weston_load_module("remoting-plugin.so",
 945                                          "weston_module_init");
 946         if (!module_init)
 947                 return -1;
 948
 949         if (module_init(compositor) < 0)
 950                 return -1;
 951
 952         ivi->remoting_api = weston_remoting_get_api(compositor);
 953         if (!ivi->remoting_api)
 954                 return -1;
 955         return 0;
 956 }
 957 #else
 958 static int
 959 load_remoting_plugin(struct weston_compositor *compositor, struct weston_config *config)
 960 {
 961         return -1;
 962 }
 963 #endif
 964
 965 static int
 966 load_drm_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 967 {
 968         struct weston_drm_backend_config config = {
 969                 .base = {
 970                         .struct_version = WESTON_DRM_BACKEND_CONFIG_VERSION,
 971                         .struct_size = sizeof config,
 972                 },
 973         };
 974         struct weston_config_section *section;
 975         int use_current_mode = 0;
 976         int use_pixman = 0;
 977         bool use_shadow;
 978         bool without_input = false;
 979         int ret;
 980
 981         const struct weston_option options[] = {
 982                 { WESTON_OPTION_STRING, "seat", 0, &config.seat_id },
 983                 { WESTON_OPTION_STRING, "drm-device", 0, &config.specific_device },
 984                 { WESTON_OPTION_BOOLEAN, "current-mode", 0, &use_current_mode },
 985                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman },
 986                 { WESTON_OPTION_BOOLEAN, "continue-without-input", false, &without_input }
 987         };
 988
 989         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 990         config.use_pixman = use_pixman;
 991         ivi->cmdline.use_current_mode = use_current_mode;
 992
 993         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
 994         weston_config_section_get_string(section, "gbm-format",
 995                                          &config.gbm_format, NULL);
 996         weston_config_section_get_uint(section, "pageflip-timeout",
 997                                        &config.pageflip_timeout, 0);
 998         weston_config_section_get_bool(section, "pixman-shadow", &use_shadow, 1);
 999         config.use_pixman_shadow = use_shadow;
1000
1001         if (without_input)
1002                 ivi->compositor->require_input = !without_input;
1003
1004         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_DRM,
1005                                              &config.base);
1006         if (ret < 0)
1007                 return ret;
1008
1009         ivi->drm_api = weston_drm_output_get_api(ivi->compositor);
1010         if (!ivi->drm_api) {
1011                 weston_log("Cannot use drm output api.\n");
1012                 ret = -1;
1013                 goto error;
1014         }
1015
1016         load_remoting_plugin(ivi, ivi->config);
1017
1018 error:
1019         free(config.gbm_format);
1020         free(config.seat_id);
1021         return ret;
1022 }
1023
1024 static void
1025 windowed_parse_common_options(struct ivi_compositor *ivi, int *argc, char *argv[],
1026                               bool *use_pixman, bool *fullscreen, int *output_count)
1027 {
1028         struct weston_config_section *section;
1029         bool pixman;
1030         int fs = 0;
1031
1032         const struct weston_option options[] = {
1033                 { WESTON_OPTION_INTEGER, "width", 0, &ivi->cmdline.width },
1034                 { WESTON_OPTION_INTEGER, "height", 0, &ivi->cmdline.height },
1035                 { WESTON_OPTION_INTEGER, "scale", 0, &ivi->cmdline.scale },
1036                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &pixman },
1037                 { WESTON_OPTION_BOOLEAN, "fullscreen", 0, &fs },
1038                 { WESTON_OPTION_INTEGER, "output-count", 0, output_count },
1039         };
1040
1041         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
1042         weston_config_section_get_bool(section, "use-pixman", &pixman, 0);
1043
1044         *output_count = 1;
1045         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1046         *use_pixman = pixman;
1047         *fullscreen = fs;
1048 }
1049
1050 static int
1051 windowed_create_outputs(struct ivi_compositor *ivi, int output_count,
1052                         const char *match_prefix, const char *name_prefix)
1053 {
1054         struct weston_config_section *section = NULL;
1055         const char *section_name;
1056         char *default_output = NULL;
1057         int i = 0;
1058         size_t match_len = strlen(match_prefix);
1059
1060         while (weston_config_next_section(ivi->config, &section, &section_name)) {
1061                 char *output_name;
1062
1063                 if (i >= output_count)
1064                         break;
1065
1066                 if (strcmp(section_name, "output") != 0)
1067                         continue;
1068
1069                 weston_config_section_get_string(section, "name", &output_name, NULL);
1070                 if (output_name == NULL)
1071                         continue;
1072                 if (strncmp(output_name, match_prefix, match_len) != 0) {
1073                         free(output_name);
1074                         continue;
1075                 }
1076
1077                 if (ivi->window_api->create_head(ivi->compositor, output_name) < 0) {
1078                         free(output_name);
1079                         return -1;
1080                 }
1081
1082                 free(output_name);
1083                 ++i;
1084         }
1085
1086         for (; i < output_count; ++i) {
1087                 if (asprintf(&default_output, "%s%d", name_prefix, i) < 0)
1088                         return -1;
1089
1090                 if (ivi->window_api->create_head(ivi->compositor, default_output) < 0) {
1091                         free(default_output);
1092                         return -1;
1093                 }
1094
1095                 free(default_output);
1096         }
1097
1098         return 0;
1099 }
1100
1101 static int
1102 load_wayland_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
1103 {
1104         struct weston_wayland_backend_config config = {
1105                 .base = {
1106                         .struct_version = WESTON_WAYLAND_BACKEND_CONFIG_VERSION,
1107                         .struct_size = sizeof config,
1108                 },
1109         };
1110         struct weston_config_section *section;
1111         int sprawl = 0;
1112         int output_count;
1113         int ret;
1114
1115         const struct weston_option options[] = {
1116                 { WESTON_OPTION_STRING, "display", 0, &config.display_name },
1117                 { WESTON_OPTION_STRING, "sprawl", 0, &sprawl },
1118         };
1119
1120         windowed_parse_common_options(ivi, argc, argv, &config.use_pixman,
1121                                       &config.fullscreen, &output_count);
1122
1123         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1124         config.sprawl = sprawl;
1125
1126         section = weston_config_get_section(ivi->config, "shell", NULL, NULL);
1127         weston_config_section_get_string(section, "cursor-theme",
1128                                          &config.cursor_theme, NULL);
1129         weston_config_section_get_int(section, "cursor-size",
1130                                       &config.cursor_size, 32);
1131
1132         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_WAYLAND,
1133                                              &config.base);
1134
1135         free(config.cursor_theme);
1136         free(config.display_name);
1137
1138         if (ret < 0)
1139                 return ret;
1140
1141         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
1142
1143         /*
1144          * We will just assume if load_backend() finished cleanly and
1145          * windowed_output_api is not present that wayland backend is started
1146          * with --sprawl or runs on fullscreen-shell. In this case, all values
1147          * are hardcoded, so nothing can be configured; simply create and
1148          * enable an output.
1149          */
1150         if (ivi->window_api == NULL)
1151                 return 0;
1152
1153         return windowed_create_outputs(ivi, output_count, "WL", "wayland");
1154 }
1155
1156 #ifdef HAVE_BACKEND_X11
1157 static int
1158 load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
1159 {
1160         struct weston_x11_backend_config config = {
1161                 .base = {
1162                         .struct_version = WESTON_X11_BACKEND_CONFIG_VERSION,
1163                         .struct_size = sizeof config,
1164                 },
1165         };
1166         int no_input = 0;
1167         int output_count;
1168         int ret;
1169
1170         const struct weston_option options[] = {
1171                { WESTON_OPTION_BOOLEAN, "no-input", 0, &no_input },
1172         };
1173
1174         windowed_parse_common_options(ivi, argc, argv, &config.use_pixman,
1175                                       &config.fullscreen, &output_count);
1176
1177         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1178         config.no_input = no_input;
1179
1180         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_X11,
1181                                              &config.base);
1182
1183         if (ret < 0)
1184                 return ret;
1185
1186         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
1187         if (!ivi->window_api) {
1188                 weston_log("Cannot use weston_windowed_output_api.\n");
1189                 return -1;
1190         }
1191
1192         return windowed_create_outputs(ivi, output_count, "X", "screen");
1193 }
1194 #else
1195 static int
1196 load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
1197 {
1198         return -1;
1199 }
1200 #endif
1201
1202 #ifdef HAVE_BACKEND_HEADLESS
1203 static int
1204 load_headless_backend(struct ivi_compositor *ivi, int *argc, char **argv)
1205 {
1206         struct weston_headless_backend_config config = {};
1207         int ret = 0;
1208
1209         bool use_pixman;
1210         bool fullscreen;
1211         bool use_gl;
1212         int output_count;
1213
1214         struct weston_compositor *c = ivi->compositor;
1215
1216         const struct weston_option options[] = {
1217                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman },
1218                 { WESTON_OPTION_BOOLEAN, "use-gl", 0, &use_gl },
1219         };
1220
1221         windowed_parse_common_options(ivi, argc, argv, &use_pixman,
1222                         &fullscreen, &output_count);
1223
1224         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1225         config.use_pixman = use_pixman;
1226         config.use_gl = use_gl;
1227
1228         config.base.struct_version = WESTON_HEADLESS_BACKEND_CONFIG_VERSION;
1229         config.base.struct_size = sizeof(struct weston_headless_backend_config);
1230
1231         /* load the actual headless-backend and configure it */
1232         ret = weston_compositor_load_backend(c, WESTON_BACKEND_HEADLESS,
1233                                              &config.base);
1234         if (ret < 0)
1235                 return ret;
1236
1237         ivi->window_api = weston_windowed_output_get_api(c);
1238         if (!ivi->window_api) {
1239                 weston_log("Cannot use weston_windowed_output_api.\n");
1240                 return -1;
1241         }
1242
1243         if (ivi->window_api->create_head(c, "headless") < 0) {
1244                 weston_log("Cannot create headless back-end\n");
1245                 return -1;
1246         }
1247
1248         return 0;
1249 }
1250 #else
1251 static int
1252 load_headless_backend(struct ivi_compositor *ivi, int *argc, char **argv)
1253 {
1254         return -1;
1255 }
1256 #endif
1257
1258 #ifdef HAVE_BACKEND_RDP
1259 static void
1260 weston_rdp_backend_config_init(struct weston_rdp_backend_config *config)
1261 {
1262         config->base.struct_version = WESTON_RDP_BACKEND_CONFIG_VERSION;
1263         config->base.struct_size = sizeof(struct weston_rdp_backend_config);
1264
1265         config->bind_address = NULL;
1266         config->port = 3389;
1267         config->rdp_key = NULL;
1268         config->server_cert = NULL;
1269         config->server_key = NULL;
1270         config->env_socket = 0;
1271         config->no_clients_resize = 1;
1272         config->force_no_compression = 0;
1273 }
1274
1275 static int
1276 rdp_backend_output_configure(struct weston_output *output)
1277 {
1278         struct ivi_compositor *ivi = to_ivi_compositor(output->compositor);
1279         struct ivi_output_config *parsed_options = ivi->parsed_options;
1280         const struct weston_rdp_output_api *api =
1281                 weston_rdp_output_get_api(output->compositor);
1282         int width = 640;
1283         int height = 480;
1284
1285         assert(parsed_options);
1286
1287         if (!api) {
1288                 weston_log("Cannot use weston_rdp_output_api.\n");
1289                 return -1;
1290         }
1291
1292         if (parsed_options->width)
1293                 width = parsed_options->width;
1294
1295         if (parsed_options->height)
1296                 height = parsed_options->height;
1297
1298         weston_output_set_scale(output, 1);
1299         weston_output_set_transform(output, WL_OUTPUT_TRANSFORM_NORMAL);
1300
1301         if (api->output_set_size(output, width, height) < 0) {
1302                 weston_log("Cannot configure output \"%s\" using weston_rdp_output_api.\n",
1303                                 output->name);
1304                 return -1;
1305         }
1306
1307         return 0;
1308 }
1309
1310 static int
1311 load_rdp_backend(struct ivi_compositor *ivi, int *argc, char **argv)
1312 {
1313         struct weston_rdp_backend_config config = {};
1314         int ret = 0;
1315
1316         struct ivi_output_config *parsed_options = ivi_init_parsed_options(ivi->compositor);
1317         if (!parsed_options)
1318                 return -1;
1319
1320         weston_rdp_backend_config_init(&config);
1321
1322         const struct weston_option rdp_options[] = {
1323                 { WESTON_OPTION_BOOLEAN, "env-socket", 0, &config.env_socket },
1324                 { WESTON_OPTION_INTEGER, "width", 0, &parsed_options->width },
1325                 { WESTON_OPTION_INTEGER, "height", 0, &parsed_options->height },
1326                 { WESTON_OPTION_STRING,  "address", 0, &config.bind_address },
1327                 { WESTON_OPTION_INTEGER, "port", 0, &config.port },
1328                 { WESTON_OPTION_BOOLEAN, "no-clients-resize", 0, &config.no_clients_resize },
1329                 { WESTON_OPTION_STRING,  "rdp4-key", 0, &config.rdp_key },
1330                 { WESTON_OPTION_STRING,  "rdp-tls-cert", 0, &config.server_cert },
1331                 { WESTON_OPTION_STRING,  "rdp-tls-key", 0, &config.server_key },
1332                 { WESTON_OPTION_BOOLEAN, "force-no-compression", 0, &config.force_no_compression },
1333         };
1334
1335         parse_options(rdp_options, ARRAY_LENGTH(rdp_options), argc, argv);
1336
1337         ivi->simple_output_configure = rdp_backend_output_configure;
1338         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_RDP, &config.base);
1339
1340         free(config.bind_address);
1341         free(config.rdp_key);
1342         free(config.server_cert);
1343         free(config.server_key);
1344
1345         return ret;
1346 }
1347 #else
1348 static int
1349 load_rdp_backend(struct ivi_compositor *ivi, int *argc, char **argv)
1350 {
1351         return -1;
1352 }
1353 #endif
1354
1355
1356 static int
1357 load_backend(struct ivi_compositor *ivi, const char *backend,
1358              int *argc, char *argv[])
1359 {
1360         if (strcmp(backend, "drm-backend.so") == 0) {
1361                 return load_drm_backend(ivi, argc, argv);
1362         } else if (strcmp(backend, "wayland-backend.so") == 0) {
1363                 return load_wayland_backend(ivi, argc, argv);
1364         } else if (strcmp(backend, "x11-backend.so") == 0) {
1365                 return load_x11_backend(ivi, argc, argv);
1366         } else if (strcmp(backend, "headless-backend.so") == 0) {
1367                 return load_headless_backend(ivi, argc, argv);
1368         } else if (strcmp(backend, "rdp-backend.so") == 0) {
1369                 return load_rdp_backend(ivi, argc, argv);
1370         }
1371
1372         weston_log("fatal: unknown backend '%s'.\n", backend);
1373         return -1;
1374 }
1375
1376 static int
1377 load_modules(struct ivi_compositor *ivi, const char *modules,
1378              int *argc, char *argv[], bool *xwayland)
1379 {
1380         const char *p, *end;
1381         char buffer[256];
1382         int (*module_init)(struct weston_compositor *wc, int argc, char *argv[]);
1383
1384         if (modules == NULL)
1385                 return 0;
1386
1387         p = modules;
1388         while (*p) {
1389                 end = strchrnul(p, ',');
1390                 snprintf(buffer, sizeof buffer, "%.*s", (int) (end - p), p);
1391
1392                 if (strstr(buffer, "xwayland.so")) {
1393                         *xwayland = true;
1394                 } else if (strstr(buffer, "systemd-notify.so")) {
1395                         weston_log("systemd-notify plug-in already loaded!\n");
1396                 } else {
1397                         module_init = weston_load_module(buffer, "wet_module_init");
1398                         if (!module_init)
1399                                 return -1;
1400
1401                         if (module_init(ivi->compositor, *argc, argv) < 0)
1402                                 return -1;
1403
1404                 }
1405
1406                 p = end;
1407                 while (*p == ',')
1408                         p++;
1409         }
1410
1411         return 0;
1412 }
1413
1414
1415 static char *
1416 choose_default_backend(void)
1417 {
1418         char *backend = NULL;
1419
1420         if (getenv("WAYLAND_DISPLAY") || getenv("WAYLAND_SOCKET"))
1421                 backend = strdup("wayland-backend.so");
1422         else if (getenv("DISPLAY"))
1423                 backend = strdup("x11-backend.so");
1424         else
1425                 backend = strdup("drm-backend.so");
1426
1427         return backend;
1428 }
1429
1430 static int
1431 compositor_init_config(struct ivi_compositor *ivi)
1432 {
1433         struct xkb_rule_names xkb_names;
1434         struct weston_config_section *section;
1435         struct weston_compositor *compositor = ivi->compositor;
1436         struct weston_config *config = ivi->config;
1437         int repaint_msec;
1438         bool vt_switching;
1439         bool require_input;
1440
1441         /* agl-compositor.ini [keyboard] */
1442         section = weston_config_get_section(config, "keyboard", NULL, NULL);
1443         weston_config_section_get_string(section, "keymap_rules",
1444                                          (char **) &xkb_names.rules, NULL);
1445         weston_config_section_get_string(section, "keymap_model",
1446                                          (char **) &xkb_names.model, NULL);
1447         weston_config_section_get_string(section, "keymap_layout",
1448                                          (char **) &xkb_names.layout, NULL);
1449         weston_config_section_get_string(section, "keymap_variant",
1450                                          (char **) &xkb_names.variant, NULL);
1451         weston_config_section_get_string(section, "keymap_options",
1452                                          (char **) &xkb_names.options, NULL);
1453
1454         if (weston_compositor_set_xkb_rule_names(compositor, &xkb_names) < 0)
1455                 return -1;
1456
1457         weston_config_section_get_int(section, "repeat-rate",
1458                                       &compositor->kb_repeat_rate, 40);
1459         weston_config_section_get_int(section, "repeat-delay",
1460                                       &compositor->kb_repeat_delay, 400);
1461
1462         weston_config_section_get_bool(section, "vt-switching",
1463                                        &vt_switching, false);
1464         compositor->vt_switching = vt_switching;
1465
1466         /* agl-compositor.ini [core] */
1467         section = weston_config_get_section(config, "core", NULL, NULL);
1468
1469         weston_config_section_get_bool(section, "disable-cursor",
1470                                        &ivi->disable_cursor, false);
1471         weston_config_section_get_bool(section, "activate-by-default",
1472                                        &ivi->activate_by_default, true);
1473
1474         weston_config_section_get_bool(section, "require-input", &require_input, true);
1475         compositor->require_input = require_input;
1476
1477         weston_config_section_get_int(section, "repaint-window", &repaint_msec,
1478                                       compositor->repaint_msec);
1479         if (repaint_msec < -10 || repaint_msec > 1000) {
1480                 weston_log("Invalid repaint_window value in config: %d\n",
1481                            repaint_msec);
1482         } else {
1483                 compositor->repaint_msec = repaint_msec;
1484         }
1485         weston_log("Output repaint window is %d ms maximum.\n",
1486                    compositor->repaint_msec);
1487
1488         return 0;
1489 }
1490
1491 struct ivi_surface *
1492 to_ivi_surface(struct weston_surface *surface)
1493 {
1494         struct weston_desktop_surface *dsurface;
1495
1496         dsurface = weston_surface_get_desktop_surface(surface);
1497         if (!dsurface)
1498                 return NULL;
1499
1500         return weston_desktop_surface_get_user_data(dsurface);
1501 }
1502
1503 static void
1504 activate_binding(struct weston_seat *seat,
1505                  struct weston_view *focus_view, uint32_t flags)
1506 {
1507         struct weston_surface *focus_surface;
1508         struct weston_surface *main_surface;
1509         struct ivi_surface *ivi_surface;
1510         struct ivi_shell_seat *ivi_seat = get_ivi_shell_seat(seat);
1511
1512         if (!focus_view)
1513                 return;
1514
1515         focus_surface = focus_view->surface;
1516         main_surface = weston_surface_get_main_surface(focus_surface);
1517
1518         ivi_surface = to_ivi_surface(main_surface);
1519         if (!ivi_surface)
1520                 return;
1521
1522         if (ivi_seat)
1523                 ivi_shell_activate_surface(ivi_surface, ivi_seat, flags);
1524 }
1525
1526 static void
1527 click_to_activate_binding(struct weston_pointer *pointer,
1528                           const struct timespec *time,
1529                           uint32_t button, void *data)
1530 {
1531         if (pointer->grab != &pointer->default_grab)
1532                 return;
1533         if (pointer->focus == NULL)
1534                 return;
1535
1536         activate_binding(pointer->seat, pointer->focus,
1537                          WESTON_ACTIVATE_FLAG_CLICKED);
1538 }
1539
1540 static void
1541 touch_to_activate_binding(struct weston_touch *touch,
1542                           const struct timespec *time,
1543                           void *data)
1544 {
1545         if (touch->grab != &touch->default_grab)
1546                 return;
1547         if (touch->focus == NULL)
1548                 return;
1549
1550         activate_binding(touch->seat, touch->focus,
1551                          WESTON_ACTIVATE_FLAG_NONE);
1552 }
1553
1554 static void
1555 add_bindings(struct weston_compositor *compositor)
1556 {
1557         weston_compositor_add_button_binding(compositor, BTN_LEFT, 0,
1558                                              click_to_activate_binding,
1559                                              NULL);
1560         weston_compositor_add_button_binding(compositor, BTN_RIGHT, 0,
1561                                              click_to_activate_binding,
1562                                              NULL);
1563         weston_compositor_add_touch_binding(compositor, 0,
1564                                             touch_to_activate_binding,
1565                                             NULL);
1566 }
1567
1568 static int
1569 create_listening_socket(struct wl_display *display, const char *socket_name)
1570 {
1571         if (socket_name) {
1572                 if (wl_display_add_socket(display, socket_name)) {
1573                         weston_log("fatal: failed to add socket: %s\n",
1574                                    strerror(errno));
1575                         return -1;
1576                 }
1577         } else {
1578                 socket_name = wl_display_add_socket_auto(display);
1579                 if (!socket_name) {
1580                         weston_log("fatal: failed to add socket: %s\n",
1581                                    strerror(errno));
1582                         return -1;
1583                 }
1584         }
1585
1586         setenv("WAYLAND_DISPLAY", socket_name, 1);
1587
1588         return 0;
1589 }
1590
1591 static bool
1592 global_filter(const struct wl_client *client, const struct wl_global *global,
1593               void *data)
1594 {
1595         return true;
1596 }
1597
1598 static int
1599 load_config(struct weston_config **config, bool no_config,
1600             const char *config_file)
1601 {
1602         const char *file = "agl-compositor.ini";
1603         const char *full_path;
1604
1605         if (config_file)
1606                 file = config_file;
1607
1608         if (!no_config)
1609                 *config = weston_config_parse(file);
1610
1611         if (*config) {
1612                 full_path = weston_config_get_full_path(*config);
1613
1614                 weston_log("Using config file '%s'.\n", full_path);
1615                 setenv(WESTON_CONFIG_FILE_ENV_VAR, full_path, 1);
1616
1617                 return 0;
1618         }
1619
1620         if (config_file && !no_config) {
1621                 weston_log("fatal: error opening or reading config file '%s'.\n",
1622                         config_file);
1623
1624                 return -1;
1625         }
1626
1627         weston_log("Starting with no config file.\n");
1628         setenv(WESTON_CONFIG_FILE_ENV_VAR, "", 1);
1629
1630         return 0;
1631 }
1632
1633 static FILE *logfile;
1634
1635 static char *
1636 log_timestamp(char *buf, size_t len)
1637 {
1638         struct timeval tv;
1639         struct tm *brokendown_time;
1640         char datestr[128];
1641         char timestr[128];
1642
1643         gettimeofday(&tv, NULL);
1644
1645         brokendown_time = localtime(&tv.tv_sec);
1646         if (brokendown_time == NULL) {
1647                 snprintf(buf, len, "%s", "[(NULL)localtime] ");
1648                 return buf;
1649         }
1650
1651         memset(datestr, 0, sizeof(datestr));
1652         if (brokendown_time->tm_mday != cached_tm_mday) {
1653                 strftime(datestr, sizeof(datestr), "Date: %Y-%m-%d %Z\n",
1654                                 brokendown_time);
1655                 cached_tm_mday = brokendown_time->tm_mday;
1656         }
1657
1658         strftime(timestr, sizeof(timestr), "%H:%M:%S", brokendown_time);
1659         /* if datestr is empty it prints only timestr*/
1660         snprintf(buf, len, "%s[%s.%03li]", datestr,
1661                         timestr, (tv.tv_usec / 1000));
1662
1663         return buf;
1664 }
1665
1666 static void
1667 custom_handler(const char *fmt, va_list arg)
1668 {
1669         char timestr[512];
1670
1671         weston_log_scope_printf(log_scope, "%s libwayland: ",
1672                         log_timestamp(timestr, sizeof(timestr)));
1673         weston_log_scope_vprintf(log_scope, fmt, arg);
1674 }
1675
1676 static void
1677 log_file_open(const char *filename)
1678 {
1679         wl_log_set_handler_server(custom_handler);
1680
1681         if (filename)
1682                 logfile = fopen(filename, "a");
1683
1684         if (!logfile) {
1685                 logfile = stderr;
1686         } else {
1687                 os_fd_set_cloexec(fileno(logfile));
1688                 setvbuf(logfile, NULL, _IOLBF, 256);
1689         }
1690 }
1691
1692 static void
1693 log_file_close(void)
1694 {
1695         if (logfile && logfile != stderr)
1696                 fclose(logfile);
1697         logfile = stderr;
1698 }
1699
1700 static int
1701 vlog(const char *fmt, va_list ap)
1702 {
1703         const char *oom = "Out of memory";
1704         char timestr[128];
1705         int len = 0;
1706         char *str;
1707
1708         if (weston_log_scope_is_enabled(log_scope)) {
1709                 int len_va;
1710                 char *xlog_timestamp = log_timestamp(timestr, sizeof(timestr));
1711                 len_va = vasprintf(&str, fmt, ap);
1712                 if (len_va >= 0) {
1713                         len = weston_log_scope_printf(log_scope, "%s %s",
1714                                         xlog_timestamp, str);
1715                         free(str);
1716                 } else {
1717                         len = weston_log_scope_printf(log_scope, "%s %s",
1718                                         xlog_timestamp, oom);
1719                 }
1720         }
1721
1722         return len;
1723 }
1724
1725
1726 static int
1727 vlog_continue(const char *fmt, va_list ap)
1728 {
1729         return weston_log_scope_vprintf(log_scope, fmt, ap);
1730 }
1731
1732 static int
1733 on_term_signal(int signo, void *data)
1734 {
1735         struct wl_display *display = data;
1736
1737         weston_log("caught signal %d\n", signo);
1738         wl_display_terminate(display);
1739
1740         return 1;
1741 }
1742
1743 static void
1744 handle_exit(struct weston_compositor *compositor)
1745 {
1746         wl_display_terminate(compositor->wl_display);
1747 }
1748
1749 static void
1750 usage(int error_code)
1751 {
1752         FILE *out = error_code == EXIT_SUCCESS ? stdout : stderr;
1753         fprintf(out,
1754                 "Usage: agl-compositor [OPTIONS]\n"
1755                 "\n"
1756                 "This is " PACKAGE_STRING ", the reference compositor for\n"
1757                 "Automotive Grade Linux. " PACKAGE_STRING " supports multiple "
1758                 "backends,\nand depending on which backend is in use different "
1759                 "options will be accepted.\n"
1760                 "\n"
1761                 "Core options:\n"
1762                 "\n"
1763                 "  --version\t\tPrint agl-compositor version\n"
1764                 "  -B, --backend=MODULE\tBackend module, one of\n"
1765                         "\t\t\t\tdrm-backend.so\n"
1766                         "\t\t\t\twayland-backend.so\n"
1767                         "\t\t\t\tx11-backend.so\n"
1768                         "\t\t\t\theadless-backend.so\n"
1769                 "  -S, --socket=NAME\tName of socket to listen on\n"
1770                 "  --log=FILE\t\tLog to the given file\n"
1771                 "  -c, --config=FILE\tConfig file to load, defaults to agl-compositor.ini\n"
1772                 "  --no-config\t\tDo not read agl-compositor.ini\n"
1773                 "  --debug\t\tEnable debug extension(s)\n"
1774                 "  -h, --help\t\tThis help message\n"
1775                 "\n");
1776         exit(error_code);
1777 }
1778
1779 static char *
1780 copy_command_line(int argc, char * const argv[])
1781 {
1782         FILE *fp;
1783         char *str = NULL;
1784         size_t size = 0;
1785         int i;
1786
1787         fp = open_memstream(&str, &size);
1788         if (!fp)
1789                 return NULL;
1790
1791         fprintf(fp, "%s", argv[0]);
1792         for (i = 1; i < argc; i++)
1793                 fprintf(fp, " %s", argv[i]);
1794         fclose(fp);
1795
1796         return str;
1797 }
1798
1799 #if !defined(BUILD_XWAYLAND)
1800 int
1801 wet_load_xwayland(struct weston_compositor *comp)
1802 {
1803         weston_log("Attempted to load xwayland library but compositor "
1804                    "was *not* built with xwayland support!\n");
1805         return -1;
1806 }
1807 #endif
1808
1809 static void
1810 weston_log_setup_scopes(struct weston_log_context *log_ctx,
1811                         struct weston_log_subscriber *subscriber,
1812                         const char *names)
1813 {
1814         assert(log_ctx);
1815         assert(subscriber);
1816
1817         char *tokenize = strdup(names);
1818         char *token = strtok(tokenize, ",");
1819         while (token) {
1820                 weston_log_subscribe(log_ctx, subscriber, token);
1821                 token = strtok(NULL, ",");
1822         }
1823         free(tokenize);
1824 }
1825
1826 static void
1827 weston_log_subscribe_to_scopes(struct weston_log_context *log_ctx,
1828                                struct weston_log_subscriber *logger,
1829                                const char *debug_scopes)
1830 {
1831         if (logger && debug_scopes)
1832                 weston_log_setup_scopes(log_ctx, logger, debug_scopes);
1833         else
1834                 weston_log_subscribe(log_ctx, logger, "log");
1835 }
1836
1837 WL_EXPORT
1838 int wet_main(int argc, char *argv[], const struct weston_testsuite_data *test_data)
1839 {
1840         struct ivi_compositor ivi = { 0 };
1841         char *cmdline;
1842         struct wl_display *display = NULL;
1843         struct wl_event_loop *loop;
1844         struct wl_event_source *signals[3] = { 0 };
1845         struct weston_config_section *section;
1846         /* Command line options */
1847         char *backend = NULL;
1848         char *socket_name = NULL;
1849         char *log = NULL;
1850         char *modules = NULL;
1851         char *option_modules = NULL;
1852         char *debug_scopes = NULL;
1853         int help = 0;
1854         int version = 0;
1855         int no_config = 0;
1856         int debug = 0;
1857         bool list_debug_scopes = false;
1858         char *config_file = NULL;
1859         struct weston_log_context *log_ctx = NULL;
1860         struct weston_log_subscriber *logger;
1861         int ret = EXIT_FAILURE;
1862         bool xwayland = false;
1863         struct sigaction action;
1864
1865         const struct weston_option core_options[] = {
1866                 { WESTON_OPTION_STRING, "backend", 'B', &backend },
1867                 { WESTON_OPTION_STRING, "socket", 'S', &socket_name },
1868                 { WESTON_OPTION_STRING, "log", 0, &log },
1869                 { WESTON_OPTION_BOOLEAN, "help", 'h', &help },
1870                 { WESTON_OPTION_BOOLEAN, "version", 0, &version },
1871                 { WESTON_OPTION_BOOLEAN, "no-config", 0, &no_config },
1872                 { WESTON_OPTION_BOOLEAN, "debug", 0, &debug },
1873                 { WESTON_OPTION_STRING, "config", 'c', &config_file },
1874                 { WESTON_OPTION_STRING, "modules", 0, &option_modules },
1875                 { WESTON_OPTION_STRING, "debug-scopes", 'l', &debug_scopes },
1876                 { WESTON_OPTION_STRING, "list-debug-scopes", 'L', &list_debug_scopes },
1877         };
1878
1879         wl_list_init(&ivi.outputs);
1880         wl_list_init(&ivi.saved_outputs);
1881         wl_list_init(&ivi.surfaces);
1882         wl_list_init(&ivi.pending_surfaces);
1883         wl_list_init(&ivi.popup_pending_apps);
1884         wl_list_init(&ivi.fullscreen_pending_apps);
1885         wl_list_init(&ivi.split_pending_apps);
1886         wl_list_init(&ivi.remote_pending_apps);
1887         wl_list_init(&ivi.desktop_clients);
1888         wl_list_init(&ivi.child_process_list);
1889         wl_list_init(&ivi.pending_apps);
1890
1891         /* Prevent any clients we spawn getting our stdin */
1892         os_fd_set_cloexec(STDIN_FILENO);
1893
1894         cmdline = copy_command_line(argc, argv);
1895         parse_options(core_options, ARRAY_LENGTH(core_options), &argc, argv);
1896
1897         if (help)
1898                 usage(EXIT_SUCCESS);
1899
1900         if (version) {
1901                 printf(PACKAGE_STRING "\n");
1902                 ret = EXIT_SUCCESS;
1903                 goto exit_signals;
1904         }
1905
1906         log_ctx = weston_log_ctx_create();
1907         if (!log_ctx) {
1908                 fprintf(stderr, "Failed to initialize weston debug framework.\n");
1909                 goto exit_signals;
1910         }
1911
1912         log_scope = weston_log_ctx_add_log_scope(log_ctx, "log",
1913                                                  "agl-compositor log\n",
1914                                                  NULL, NULL, NULL);
1915
1916         log_file_open(log);
1917         weston_log_set_handler(vlog, vlog_continue);
1918
1919         logger = weston_log_subscriber_create_log(logfile);
1920         weston_log_subscribe_to_scopes(log_ctx, logger, debug_scopes);
1921
1922         weston_log("Command line: %s\n", cmdline);
1923         free(cmdline);
1924
1925         if (load_config(&ivi.config, no_config, config_file) < 0)
1926                 goto error_signals;
1927         section = weston_config_get_section(ivi.config, "core", NULL, NULL);
1928         if (!backend) {
1929                 weston_config_section_get_string(section, "backend", &backend,
1930                                                  NULL);
1931                 if (!backend)
1932                         backend = choose_default_backend();
1933         }
1934
1935         display = wl_display_create();
1936         loop = wl_display_get_event_loop(display);
1937
1938         wl_display_set_global_filter(display,
1939                                      global_filter, &ivi);
1940
1941         /* Register signal handlers so we shut down cleanly */
1942
1943         signals[0] = wl_event_loop_add_signal(loop, SIGTERM, on_term_signal,
1944                                               display);
1945         signals[1] = wl_event_loop_add_signal(loop, SIGUSR2, on_term_signal,
1946                                               display);
1947         signals[2] = wl_event_loop_add_signal(loop, SIGCHLD, sigchld_handler,
1948                                               display);
1949
1950         /* When debugging the compositor, if use wl_event_loop_add_signal() to
1951          * catch SIGINT, the debugger can't catch it, and attempting to stop
1952          * the compositor from within the debugger results in weston exiting
1953          * cleanly.
1954          *
1955          * Instead, use the sigaction() function, which sets up the signal in a
1956          * way that gdb can successfully catch, but have the handler for SIGINT
1957          * send SIGUSR2 (xwayland uses SIGUSR1), which we catch via
1958          * wl_event_loop_add_signal().
1959          */
1960         action.sa_handler = sigint_helper;
1961         sigemptyset(&action.sa_mask);
1962         action.sa_flags = 0;
1963         sigaction(SIGINT, &action, NULL);
1964
1965         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
1966                 if (!signals[i])
1967                         goto error_signals;
1968
1969         ivi.compositor = weston_compositor_create(display, log_ctx, &ivi, test_data);
1970         if (!ivi.compositor) {
1971                 weston_log("fatal: failed to create compositor.\n");
1972                 goto error_signals;
1973         }
1974
1975         if (compositor_init_config(&ivi) < 0)
1976                 goto error_compositor;
1977
1978         if (load_backend(&ivi, backend, &argc, argv) < 0) {
1979                 weston_log("fatal: failed to create compositor backend.\n");
1980                 goto error_compositor;
1981         }
1982
1983         ivi.heads_changed.notify = heads_changed;
1984         weston_compositor_add_heads_changed_listener(ivi.compositor,
1985                                                      &ivi.heads_changed);
1986
1987         weston_compositor_flush_heads_changed(ivi.compositor);
1988         if (ivi_desktop_init(&ivi) < 0)
1989                 goto error_compositor;
1990
1991         ivi_seat_init(&ivi);
1992
1993         /* load additional modules */
1994         weston_config_section_get_string(section, "modules", &modules, "");
1995         if (load_modules(&ivi, modules, &argc, argv, &xwayland) < 0)
1996                 goto error_compositor;
1997
1998         if (load_modules(&ivi, option_modules, &argc, argv, &xwayland) < 0)
1999                 goto error_compositor;
2000
2001         if (!xwayland) {
2002                 weston_config_section_get_bool(section, "xwayland", &xwayland,
2003                                                false);
2004         }
2005
2006         if (ivi_shell_init(&ivi) < 0)
2007                 goto error_compositor;
2008
2009         if (xwayland) {
2010                 if (wet_load_xwayland(ivi.compositor) < 0)
2011                         goto error_compositor;
2012         }
2013
2014         if (ivi_policy_init(&ivi) < 0)
2015                 goto error_compositor;
2016
2017
2018         if (list_debug_scopes) {
2019                 struct weston_log_scope *nscope = NULL;
2020
2021                 weston_log("Printing available debug scopes:\n");
2022
2023                 while ((nscope = weston_log_scopes_iterate(log_ctx, nscope))) {
2024                         weston_log("\tscope name: %s, desc: %s",
2025                                         weston_log_scope_get_name(nscope),
2026                                         weston_log_scope_get_description(nscope));
2027                 }
2028
2029                 weston_log("\n");
2030
2031                 goto error_compositor;
2032         }
2033
2034         add_bindings(ivi.compositor);
2035
2036         if (ivi.remoting_api)
2037                 ivi_enable_remote_outputs(&ivi);
2038
2039         if (create_listening_socket(display, socket_name) < 0)
2040                 goto error_compositor;
2041
2042         ivi_shell_init_black_fs(&ivi);
2043
2044         ivi.compositor->exit = handle_exit;
2045
2046         weston_compositor_wake(ivi.compositor);
2047
2048         ivi_shell_create_global(&ivi);
2049
2050         ivi_launch_shell_client(&ivi, "shell-client",
2051                                 &ivi.shell_client.client);
2052         ivi_launch_shell_client(&ivi, "shell-client-ext",
2053                                 &ivi.shell_client_ext.client);
2054
2055         if (debug)
2056                 ivi_screenshooter_create(&ivi);
2057         ivi_agl_systemd_notify(&ivi);
2058
2059         wl_display_run(display);
2060
2061         ret = ivi.compositor->exit_code;
2062
2063         wl_display_destroy_clients(display);
2064
2065 error_compositor:
2066         free(backend);
2067         backend = NULL;
2068         free(modules);
2069         modules = NULL;
2070
2071         weston_compositor_destroy(ivi.compositor);
2072
2073         weston_log_scope_destroy(log_scope);
2074         log_scope = NULL;
2075
2076         weston_log_subscriber_destroy(logger);
2077         weston_log_ctx_destroy(log_ctx);
2078
2079         ivi_policy_destroy(ivi.policy);
2080
2081 error_signals:
2082         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
2083                 if (signals[i])
2084                         wl_event_source_remove(signals[i]);
2085
2086         wl_display_destroy(display);
2087
2088         log_file_close();
2089         if (ivi.config)
2090                 weston_config_destroy(ivi.config);
2091
2092 exit_signals:
2093         free(log);
2094         free(config_file);
2095         free(socket_name);
2096         free(option_modules);
2097         return ret;
2098 }