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 "config.h"
  61 #include "agl-shell-server-protocol.h"
  62
  63 #ifdef HAVE_REMOTING
  64 #include "remote.h"
  65 #endif
  66
  67 static int cached_tm_mday = -1;
  68 static struct weston_log_scope *log_scope;
  69
  70 struct ivi_compositor *
  71 to_ivi_compositor(struct weston_compositor *ec)
  72 {
  73         return weston_compositor_get_user_data(ec);
  74 }
  75
  76 struct ivi_output_config *
  77 ivi_init_parsed_options(struct weston_compositor *compositor)
  78 {
  79         struct ivi_compositor *ivi = to_ivi_compositor(compositor);
  80         struct ivi_output_config *config;
  81
  82         config = zalloc(sizeof *config);
  83         if (!config)
  84                 return NULL;
  85
  86         config->width = 0;
  87         config->height = 0;
  88         config->scale = 0;
  89         config->transform = UINT32_MAX;
  90
  91         ivi->parsed_options = config;
  92
  93         return config;
  94 }
  95
  96
  97
  98 static void
  99 sigint_helper(int sig)
 100 {
 101        raise(SIGUSR2);
 102 }
 103
 104 struct {
 105         char *name;
 106         enum weston_renderer_type renderer;
 107 } renderer_name_map[] = {
 108         { "auto", WESTON_RENDERER_AUTO },
 109         { "gl", WESTON_RENDERER_GL },
 110         { "noop", WESTON_RENDERER_NOOP },
 111         { "pixman", WESTON_RENDERER_PIXMAN },
 112 };
 113
 114 struct {
 115         char *short_name;
 116         char *long_name;
 117         enum weston_compositor_backend backend;
 118 } backend_name_map[] = {
 119         { "drm", "drm-backend.so", WESTON_BACKEND_DRM },
 120         { "headless", "headless-backend.so", WESTON_BACKEND_HEADLESS },
 121         { "pipewire", "pipewire-backend.so", WESTON_BACKEND_PIPEWIRE },
 122         { "rdp", "rdp-backend.so", WESTON_BACKEND_RDP },
 123         { "vnc", "vnc-backend.so", WESTON_BACKEND_VNC },
 124         { "wayland", "wayland-backend.so", WESTON_BACKEND_WAYLAND },
 125         { "x11", "x11-backend.so", WESTON_BACKEND_X11 },
 126 };
 127
 128 bool
 129 get_backend_from_string(const char *name,
 130                 enum weston_compositor_backend *backend)
 131 {
 132         size_t i;
 133
 134         for (i = 0; i < ARRAY_LENGTH(backend_name_map); i++) {
 135                 if (strcmp(name, backend_name_map[i].short_name) == 0 ||
 136                                 strcmp(name, backend_name_map[i].long_name) == 0) {
 137                         *backend = backend_name_map[i].backend;
 138                         return true;
 139                 }
 140         }
 141
 142         return false;
 143 }
 144
 145
 146 bool
 147 get_renderer_from_string(const char *name, enum weston_renderer_type *renderer)
 148 {
 149         size_t i;
 150
 151         if (!name)
 152                 name = "auto";
 153
 154         for (i = 0; i < ARRAY_LENGTH(renderer_name_map); i++) {
 155                 if (strcmp(name, renderer_name_map[i].name) == 0) {
 156                         *renderer = renderer_name_map[i].renderer;
 157                         return true;
 158                 }
 159         }
 160
 161         return false;
 162 }
 163
 164
 165 void
 166 ivi_layout_save(struct ivi_compositor *ivi, struct ivi_output *output)
 167 {
 168         struct ivi_output *new_output;
 169         ivi->need_ivi_output_relayout = true;
 170
 171         new_output = zalloc(sizeof(*new_output));
 172
 173         new_output->ivi = ivi;
 174         new_output->background = output->background;
 175
 176         new_output->top = output->top;
 177         new_output->bottom = output->bottom;
 178         new_output->left = output->left;
 179         new_output->right = output->right;
 180
 181         new_output->active = output->active;
 182         new_output->previous_active = output->previous_active;
 183         new_output->name = strdup(output->name);
 184         if (output->app_ids)
 185                 new_output->app_ids = strdup(output->app_ids);
 186
 187         new_output->area = output->area;
 188         new_output->area_saved = output->area_saved;
 189         new_output->area_activation = output->area_activation;
 190
 191         weston_log("saving output layout for output %s\n", new_output->name);
 192
 193         wl_list_insert(&ivi->saved_outputs, &new_output->link);
 194 }
 195
 196 void
 197 ivi_layout_restore(struct ivi_compositor *ivi, struct ivi_output *n_output)
 198 {
 199         struct ivi_output *output = NULL;
 200         struct ivi_output *iter_output;
 201
 202         if (!ivi->need_ivi_output_relayout)
 203                 return;
 204
 205         ivi->need_ivi_output_relayout = false;
 206
 207         wl_list_for_each(iter_output, &ivi->saved_outputs, link) {
 208                 if (strcmp(n_output->name, iter_output->name) == 0) {
 209                         output = iter_output;
 210                         break;
 211                 }
 212         }
 213
 214         if (!output)
 215                 return;
 216
 217         weston_log("restoring output layout for output %s\n", output->name);
 218         n_output->background = output->background;
 219
 220         n_output->top = output->top;
 221         n_output->bottom = output->bottom;
 222         n_output->left = output->left;
 223         n_output->right = output->right;
 224
 225         n_output->active = output->active;
 226         n_output->previous_active = output->previous_active;
 227         if (output->app_ids)
 228                 n_output->app_ids = strdup(output->app_ids);
 229
 230         n_output->area = output->area;
 231         n_output->area_saved = output->area_saved;
 232         n_output->area_activation = output->area_activation;
 233
 234         free(output->app_ids);
 235         free(output->name);
 236         wl_list_remove(&output->link);
 237         free(output);
 238 }
 239
 240 void
 241 ivi_layout_destroy_saved_outputs(struct ivi_compositor *ivi)
 242 {
 243         struct ivi_output *output, *output_next;
 244
 245         wl_list_for_each_safe(output, output_next, &ivi->saved_outputs, link) {
 246                 free(output->app_ids);
 247                 free(output->name);
 248
 249                 wl_list_remove(&output->link);
 250                 free(output);
 251         }
 252 }
 253
 254 static void
 255 handle_output_destroy(struct wl_listener *listener, void *data)
 256 {
 257         struct ivi_output *output;
 258
 259         output = wl_container_of(listener, output, output_destroy);
 260         assert(output->output == data);
 261
 262         if (output->fullscreen_view.fs &&
 263             output->fullscreen_view.fs->view) {
 264                 weston_surface_unref(output->fullscreen_view.fs->view->surface);
 265                 weston_buffer_destroy_solid(output->fullscreen_view.buffer_ref);
 266                 output->fullscreen_view.fs->view = NULL;
 267         }
 268
 269         ivi_layout_save(output->ivi, output);
 270
 271         output->output = NULL;
 272         wl_list_remove(&output->output_destroy.link);
 273 }
 274
 275 struct ivi_output *
 276 to_ivi_output(struct weston_output *o)
 277 {
 278         struct wl_listener *listener;
 279         struct ivi_output *output;
 280
 281         listener = weston_output_get_destroy_listener(o, handle_output_destroy);
 282         output = wl_container_of(listener, output, output_destroy);
 283
 284         return output;
 285 }
 286
 287 static void
 288 ivi_output_configure_app_id(struct ivi_output *ivi_output)
 289 {
 290         if (ivi_output->config) {
 291                 if (ivi_output->app_ids != NULL)
 292                         return;
 293
 294                 weston_config_section_get_string(ivi_output->config,
 295                                                  "agl-shell-app-id",
 296                                                  &ivi_output->app_ids,
 297                                                  NULL);
 298
 299                 if (ivi_output->app_ids == NULL)
 300                         return;
 301
 302                 weston_log("Will place app_id %s on output %s\n",
 303                                 ivi_output->app_ids, ivi_output->name);
 304         }
 305 }
 306
 307 static struct ivi_output *
 308 ivi_ensure_output(struct ivi_compositor *ivi, char *name,
 309                   struct weston_config_section *config,
 310                   struct weston_head *head)
 311 {
 312         struct ivi_output *output = NULL;
 313         wl_list_for_each(output, &ivi->outputs, link) {
 314                 if (strcmp(output->name, name) == 0) {
 315                         free(name);
 316                         return output;
 317                 }
 318         }
 319
 320         output = zalloc(sizeof *output);
 321         if (!output) {
 322                 free(name);
 323                 return NULL;
 324         }
 325
 326         output->ivi = ivi;
 327         output->name = name;
 328         output->config = config;
 329
 330         if (ivi->simple_output_configure) {
 331                 output->output =
 332                         weston_compositor_create_output_with_head(ivi->compositor,
 333                                                                   head);
 334                 if (!output->output) {
 335                         free(output->name);
 336                         free(output);
 337                         return NULL;
 338                 }
 339
 340                 int ret = ivi->simple_output_configure(output->output);
 341                 if (ret < 0) {
 342                         weston_log("Configuring output \"%s\" failed.\n",
 343                                         weston_head_get_name(head));
 344                         weston_output_destroy(output->output);
 345                         ivi->init_failed = true;
 346                         return NULL;
 347                 }
 348
 349                 if (weston_output_enable(output->output) < 0) {
 350                         weston_log("Enabling output \"%s\" failed.\n",
 351                                         weston_head_get_name(head));
 352                         weston_output_destroy(output->output);
 353                         ivi->init_failed = true;
 354                         return NULL;
 355                 }
 356
 357         } else {
 358                 output->output =
 359                         weston_compositor_create_output(ivi->compositor, name);
 360                 if (!output->output) {
 361                         free(output->name);
 362                         free(output);
 363                         return NULL;
 364                 }
 365         }
 366
 367         output->output_destroy.notify = handle_output_destroy;
 368         weston_output_add_destroy_listener(output->output,
 369                                            &output->output_destroy);
 370
 371         wl_list_insert(&ivi->outputs, &output->link);
 372         ivi_output_configure_app_id(output);
 373         return output;
 374 }
 375
 376 static int
 377 count_heads(struct weston_output *output)
 378 {
 379         struct weston_head *iter = NULL;
 380         int n = 0;
 381
 382         while ((iter = weston_output_iterate_heads(output, iter)))
 383                 ++n;
 384
 385         return n;
 386 }
 387
 388 static void
 389 handle_head_destroy(struct wl_listener *listener, void *data)
 390 {
 391         struct weston_head *head = data;
 392         struct weston_output *output;
 393
 394         wl_list_remove(&listener->link);
 395         free(listener);
 396
 397         output = weston_head_get_output(head);
 398
 399         /* On shutdown path, the output might be already gone. */
 400         if (!output)
 401                 return;
 402
 403         /* We're the last head */
 404         if (count_heads(output) <= 1)
 405                 weston_output_destroy(output);
 406 }
 407
 408 static void
 409 add_head_destroyed_listener(struct weston_head *head)
 410 {
 411         /* We already have a destroy listener */
 412         if (weston_head_get_destroy_listener(head, handle_head_destroy))
 413                 return;
 414
 415         struct wl_listener *listener = zalloc(sizeof *listener);
 416         if (!listener)
 417                 return;
 418
 419         listener->notify = handle_head_destroy;
 420         weston_head_add_destroy_listener(head, listener);
 421 }
 422
 423 static int
 424 drm_configure_output(struct ivi_output *output)
 425 {
 426         struct ivi_compositor *ivi = output->ivi;
 427         struct weston_config_section *section = output->config;
 428         enum weston_drm_backend_output_mode mode =
 429                 WESTON_DRM_BACKEND_OUTPUT_PREFERRED;
 430         char *modeline = NULL;
 431         char *gbm_format = NULL;
 432         char *seat = NULL;
 433
 434         if (section) {
 435                 char *m;
 436                 weston_config_section_get_string(section, "mode", &m, "preferred");
 437
 438                 /* This should have been handled earlier */
 439                 assert(strcmp(m, "off") != 0);
 440
 441                 if (ivi->cmdline.use_current_mode || strcmp(m, "current") == 0) {
 442                         mode = WESTON_DRM_BACKEND_OUTPUT_CURRENT;
 443                 } else if (strcmp(m, "preferred") != 0) {
 444                         modeline = m;
 445                         m = NULL;
 446                 }
 447                 free(m);
 448
 449                 weston_config_section_get_string(section, "gbm-format",
 450                                                  &gbm_format, NULL);
 451
 452                 weston_config_section_get_string(section, "seat", &seat, "");
 453         }
 454
 455         if (ivi->drm_api->set_mode(output->output, mode, modeline) < 0) {
 456                 weston_log("Cannot configure output using weston_drm_output_api.\n");
 457                 free(modeline);
 458                 return -1;
 459         }
 460         free(modeline);
 461
 462         ivi->drm_api->set_gbm_format(output->output, gbm_format);
 463         free(gbm_format);
 464
 465         ivi->drm_api->set_seat(output->output, seat);
 466         free(seat);
 467
 468         return 0;
 469 }
 470
 471 #define WINDOWED_DEFAULT_WIDTH 1024
 472 #define WINDOWED_DEFAULT_HEIGHT 768
 473
 474 static int
 475 windowed_configure_output(struct ivi_output *output)
 476 {
 477         struct ivi_compositor *ivi = output->ivi;
 478         struct weston_config_section *section = output->config;
 479         int width = WINDOWED_DEFAULT_WIDTH;
 480         int height = WINDOWED_DEFAULT_HEIGHT;
 481
 482         if (section) {
 483                 char *mode;
 484
 485                 weston_config_section_get_string(section, "mode", &mode, NULL);
 486                 if (!mode || sscanf(mode, "%dx%d", &width, &height) != 2) {
 487                         weston_log("Invalid mode for output %s. Using defaults.\n",
 488                                    output->name);
 489                         width = WINDOWED_DEFAULT_WIDTH;
 490                         height = WINDOWED_DEFAULT_HEIGHT;
 491                 }
 492                 free(mode);
 493         }
 494
 495         if (ivi->cmdline.width)
 496                 width = ivi->cmdline.width;
 497         if (ivi->cmdline.height)
 498                 height = ivi->cmdline.height;
 499         if (ivi->cmdline.scale)
 500                 weston_output_set_scale(output->output, ivi->cmdline.scale);
 501
 502         if (ivi->window_api->output_set_size(output->output, width, height) < 0) {
 503                 weston_log("Cannot configure output '%s' using weston_windowed_output_api.\n",
 504                            output->name);
 505                 return -1;
 506         }
 507
 508         weston_log("Configured windowed_output_api to %dx%d\n", width, height);
 509
 510         return 0;
 511 }
 512
 513 static int
 514 parse_transform(const char *transform, uint32_t *out)
 515 {
 516         static const struct { const char *name; uint32_t token; } transforms[] = {
 517                 { "normal",             WL_OUTPUT_TRANSFORM_NORMAL },
 518                 { "rotate-90",          WL_OUTPUT_TRANSFORM_90 },
 519                 { "rotate-180",         WL_OUTPUT_TRANSFORM_180 },
 520                 { "rotate-270",         WL_OUTPUT_TRANSFORM_270 },
 521                 { "flipped",            WL_OUTPUT_TRANSFORM_FLIPPED },
 522                 { "flipped-rotate-90",  WL_OUTPUT_TRANSFORM_FLIPPED_90 },
 523                 { "flipped-rotate-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 },
 524                 { "flipped-rotate-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 },
 525         };
 526
 527         for (size_t i = 0; i < ARRAY_LENGTH(transforms); i++)
 528                 if (strcmp(transforms[i].name, transform) == 0) {
 529                         *out = transforms[i].token;
 530                         return 0;
 531                 }
 532
 533         *out = WL_OUTPUT_TRANSFORM_NORMAL;
 534         return -1;
 535 }
 536
 537 int
 538 parse_activation_area(const char *geometry, struct ivi_output *output)
 539 {
 540         int n;
 541         unsigned width, height, x, y;
 542
 543         n = sscanf(geometry, "%ux%u+%u,%u", &width, &height, &x, &y);
 544         if (n != 4) {
 545                 return -1;
 546         }
 547         output->area_activation.width = width;
 548         output->area_activation.height = height;
 549         output->area_activation.x = x;
 550         output->area_activation.y = y;
 551         return 0;
 552 }
 553
 554 static int
 555 configure_output(struct ivi_output *output)
 556 {
 557         struct ivi_compositor *ivi = output->ivi;
 558         struct weston_config_section *section = output->config;
 559         int32_t scale = 1;
 560         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
 561
 562         /*
 563          * This can happen with the wayland backend with 'sprawl'. The config
 564          * is hard-coded, so we don't need to do anything.
 565          */
 566         if (!ivi->drm_api && !ivi->window_api)
 567                 return 0;
 568
 569         if (section) {
 570                 char *t;
 571
 572                 weston_config_section_get_int(section, "scale", &scale, 1);
 573                 weston_config_section_get_string(section, "transform", &t, "normal");
 574                 if (parse_transform(t, &transform) < 0)
 575                         weston_log("Invalid transform \"%s\" for output %s\n",
 576                                    t, output->name);
 577                 weston_config_section_get_string(section, "activation-area", &t, "");
 578                 if (parse_activation_area(t, output) < 0)
 579                         weston_log("Invalid activation-area \"%s\" for output %s\n",
 580                                    t, output->name);
 581                 free(t);
 582         }
 583
 584         weston_output_set_scale(output->output, scale);
 585         weston_output_set_transform(output->output, transform);
 586
 587         if (ivi->drm_api)
 588                 return drm_configure_output(output);
 589         else
 590                 return windowed_configure_output(output);
 591 }
 592
 593 /*
 594  * Reorgainizes the output's add array into two sections.
 595  * add[0..ret-1] are the heads that failed to get attached.
 596  * add[ret..add_len] are the heads that were successfully attached.
 597  *
 598  * The order between elements in each section is stable.
 599  */
 600 static size_t
 601 try_attach_heads(struct ivi_output *output)
 602 {
 603         size_t fail_len = 0;
 604
 605         for (size_t i = 1; i < output->add_len; i++) {
 606                 if (weston_output_attach_head(output->output, output->add[i]) < 0) {
 607                         struct weston_head *tmp = output->add[i];
 608                         memmove(&output->add[fail_len + 1], output->add[fail_len],
 609                                 sizeof output->add[0] * (i - fail_len));
 610                         output->add[fail_len++] = tmp;
 611                 }
 612         }
 613         return fail_len;
 614 }
 615
 616 /* Place output exactly to the right of the most recently enabled output.
 617  *
 618  * Historically, we haven't given much thought to output placement,
 619  * simply adding outputs in a horizontal line as they're enabled. This
 620  * function simply sets an output's x coordinate to the right of the
 621  * most recently enabled output, and its y to zero.
 622  *
 623  * If you're adding new calls to this function, you're also not giving
 624  * much thought to output placement, so please consider carefully if
 625  * it's really doing what you want.
 626  *
 627  * You especially don't want to use this for any code that won't
 628  * immediately enable the passed output.
 629  */
 630 static void
 631 weston_output_lazy_align(struct weston_output *output)
 632 {
 633         struct weston_compositor *c;
 634         struct weston_output *peer;
 635         int next_x = 0;
 636
 637         /* Put this output to the right of the most recently enabled output */
 638         c = output->compositor;
 639         if (!wl_list_empty(&c->output_list)) {
 640                 peer = container_of(c->output_list.prev,
 641                                 struct weston_output, link);
 642                 next_x = peer->x + peer->width;
 643         }
 644         output->x = next_x;
 645         output->y = 0;
 646 }
 647
 648
 649 /*
 650  * Like try_attach_heads, this reorganizes the output's add array into a failed
 651  * and successful section.
 652  * i is the number of heads that already failed the previous step.
 653  */
 654 static size_t
 655 try_enable_output(struct ivi_output *output, size_t i)
 656 {
 657         for (; i < output->add_len; ++i) {
 658                 struct weston_head *head;
 659
 660                 weston_output_lazy_align(output->output);
 661
 662                 if (weston_output_enable(output->output) == 0)
 663                         break;
 664
 665                 head = output->add[output->add_len - 1];
 666                 memmove(&output->add[i + 1], &output->add[i],
 667                         sizeof output->add[0] * (output->add_len - i));
 668                 output->add[i] = head;
 669
 670                 weston_head_detach(head);
 671         }
 672
 673         return i;
 674 }
 675
 676 static int
 677 try_attach_enable_heads(struct ivi_output *output)
 678 {
 679         size_t fail_len;
 680         assert(!output->output->enabled);
 681
 682         fail_len = try_attach_heads(output);
 683
 684         if (configure_output(output) < 0)
 685                 return -1;
 686
 687         fail_len = try_enable_output(output, fail_len);
 688
 689         /* All heads failed to be attached */
 690         if (fail_len == output->add_len)
 691                 return -1;
 692
 693         /* For each successful head attached */
 694         for (size_t i = fail_len; i < output->add_len; ++i)
 695                 add_head_destroyed_listener(output->add[i]);
 696
 697         ivi_layout_restore(output->ivi, output);
 698
 699         output->add_len = fail_len;
 700         return 0;
 701 }
 702
 703 static int
 704 process_output(struct ivi_output *output)
 705 {
 706         if (output->output->enabled) {
 707                 output->add_len = try_attach_heads(output);
 708                 return output->add_len == 0 ? 0 : -1;
 709         }
 710
 711         return try_attach_enable_heads(output);
 712 }
 713
 714 static void
 715 head_disable(struct ivi_compositor *ivi, struct weston_head *head)
 716 {
 717         struct weston_output *output;
 718         struct ivi_output *ivi_output;
 719         struct wl_listener *listener;
 720
 721         output = weston_head_get_output(head);
 722         assert(output);
 723
 724         listener = weston_output_get_destroy_listener(output,
 725                                                       handle_output_destroy);
 726         assert(listener);
 727
 728         ivi_output = wl_container_of(listener, ivi_output, output_destroy);
 729         assert(ivi_output->output == output);
 730
 731         weston_head_detach(head);
 732         if (count_heads(ivi_output->output) == 0) {
 733                 if (ivi_output->output) {
 734                         /* ivi_output->output destruction may be deferred in
 735                          * some cases (see drm_output_destroy()), so we need to
 736                          * forcibly trigger the destruction callback now, or
 737                          * otherwise would later access data that we are about
 738                          * to free
 739                          */
 740                         struct weston_output *save = ivi_output->output;
 741
 742                         handle_output_destroy(&ivi_output->output_destroy, save);
 743                         weston_output_destroy(save);
 744                 }
 745         }
 746         wl_list_remove(&ivi_output->link);
 747         free(ivi_output->app_ids);
 748         free(ivi_output);
 749 }
 750
 751 static struct weston_config_section *
 752 find_controlling_output_config(struct weston_config *config,
 753                                const char *name)
 754 {
 755         struct weston_config_section *section;
 756         char *same_as;
 757         int depth = 0;
 758
 759         same_as = strdup(name);
 760         do {
 761                 section = weston_config_get_section(config, "output",
 762                                                     "name", same_as);
 763                 if (!section && depth > 0)
 764                         weston_log("Configuration error: output section reffered"
 765                                    "to by same-as=%s not found.\n", same_as);
 766                 free(same_as);
 767
 768                 if (!section)
 769                         return NULL;
 770
 771                 if (depth++ > 8) {
 772                         weston_log("Configuration error: same-as nested too "
 773                                    "deep for output '%s'.\n", name);
 774                         return NULL;
 775                 }
 776
 777                 weston_config_section_get_string(section, "same-as",
 778                                                  &same_as, NULL);
 779         } while (same_as);
 780
 781         return section;
 782 }
 783
 784 static void
 785 head_prepare_enable(struct ivi_compositor *ivi, struct weston_head *head)
 786 {
 787         const char *name = weston_head_get_name(head);
 788         struct weston_config_section *section;
 789         struct ivi_output *output;
 790         char *output_name = NULL;
 791
 792
 793         section = find_controlling_output_config(ivi->config, name);
 794         if (section) {
 795                 char *mode;
 796
 797                 weston_config_section_get_string(section, "mode", &mode, NULL);
 798                 if (mode && strcmp(mode, "off") == 0) {
 799                         free(mode);
 800                         return;
 801                 }
 802                 free(mode);
 803
 804                 weston_config_section_get_string(section, "name",
 805                                                  &output_name, NULL);
 806         } else {
 807                 output_name = strdup(name);
 808         }
 809
 810         if (!output_name)
 811                 return;
 812
 813         output = ivi_ensure_output(ivi, output_name, section, head);
 814         if (!output)
 815                 return;
 816
 817         if (output->add_len >= ARRAY_LENGTH(output->add))
 818                 return;
 819
 820         output->add[output->add_len++] = head;
 821 }
 822
 823 static void
 824 heads_changed(struct wl_listener *listener, void *arg)
 825 {
 826         struct weston_compositor *compositor = arg;
 827         struct weston_head *head = NULL;
 828         struct ivi_compositor *ivi = to_ivi_compositor(compositor);
 829         struct ivi_output *output;
 830
 831         while ((head = weston_compositor_iterate_heads(ivi->compositor, head))) {
 832                 bool connected = weston_head_is_connected(head);
 833                 bool enabled = weston_head_is_enabled(head);
 834                 bool changed = weston_head_is_device_changed(head);
 835                 bool non_desktop = weston_head_is_non_desktop(head);
 836
 837                 if (connected && !enabled && !non_desktop)
 838                         head_prepare_enable(ivi, head);
 839                 else if (!connected && enabled)
 840                         head_disable(ivi, head);
 841                 else if (enabled && changed)
 842                         weston_log("Detected a monitor change on head '%s', "
 843                                    "not bothering to do anything about it.\n",
 844                                    weston_head_get_name(head));
 845
 846                 weston_head_reset_device_changed(head);
 847         }
 848
 849         wl_list_for_each(output, &ivi->outputs, link) {
 850                 if (output->add_len == 0)
 851                         continue;
 852
 853                 if (process_output(output) < 0) {
 854                         output->add_len = 0;
 855                         ivi->init_failed = true;
 856                 }
 857         }
 858 }
 859
 860 #ifdef HAVE_REMOTING
 861 static int
 862 drm_backend_remoted_output_configure(struct weston_output *output,
 863                                      struct weston_config_section *section,
 864                                      char *modeline,
 865                                      const struct weston_remoting_api *api)
 866 {
 867         char *gbm_format = NULL;
 868         char *seat = NULL;
 869         char *host = NULL;
 870         char *pipeline = NULL;
 871         int port, ret;
 872         int32_t scale = 1;
 873         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
 874         char *trans;
 875
 876         ret = api->set_mode(output, modeline);
 877         if (ret < 0) {
 878                 weston_log("Cannot configure an output \"%s\" using "
 879                                 "weston_remoting_api. Invalid mode\n",
 880                                 output->name);
 881                 return -1;
 882         }
 883
 884         weston_config_section_get_int(section, "scale", &scale, 1);
 885         weston_output_set_scale(output, scale);
 886
 887         weston_config_section_get_string(section, "transform", &trans, "normal");
 888         if (parse_transform(trans, &transform) < 0) {
 889                 weston_log("Invalid transform \"%s\" for output %s\n",
 890                            trans, output->name);
 891         }
 892         weston_output_set_transform(output, transform);
 893
 894         weston_config_section_get_string(section, "gbm-format",
 895                                          &gbm_format, NULL);
 896         api->set_gbm_format(output, gbm_format);
 897         free(gbm_format);
 898
 899         weston_config_section_get_string(section, "seat", &seat, "");
 900
 901         api->set_seat(output, seat);
 902         free(seat);
 903
 904         weston_config_section_get_string(section, "gst-pipeline", &pipeline,
 905                         NULL);
 906         if (pipeline) {
 907                 api->set_gst_pipeline(output, pipeline);
 908                 free(pipeline);
 909                 return 0;
 910         }
 911
 912         weston_config_section_get_string(section, "host", &host, NULL);
 913         weston_config_section_get_int(section, "port", &port, 0);
 914         if (!host || port <= 0 || 65533 < port) {
 915                 weston_log("Cannot configure an output \"%s\". "
 916                                 "Need to specify gst-pipeline or "
 917                                 "host and port (1-65533).\n", output->name);
 918         }
 919         api->set_host(output, host);
 920         free(host);
 921         api->set_port(output, port);
 922
 923         return 0;
 924 }
 925
 926
 927 static int
 928 remote_output_init(struct ivi_output *ivi_output,
 929                    struct weston_compositor *compositor,
 930                    struct weston_config_section *section,
 931                    const struct weston_remoting_api *api)
 932 {
 933         char *output_name, *modeline = NULL;
 934         int ret = -1;
 935
 936         weston_config_section_get_string(section, "name", &output_name, NULL);
 937         if (!output_name)
 938                 return ret;
 939
 940         weston_config_section_get_string(section, "mode", &modeline, "off");
 941         if (strcmp(modeline, "off") == 0)
 942                 goto err;
 943
 944         ivi_output->output = api->create_output(compositor, output_name);
 945         if (!ivi_output->output) {
 946                 weston_log("Cannot create remoted output \"%s\".\n",
 947                                 output_name);
 948                 goto err;
 949         }
 950
 951         ret = drm_backend_remoted_output_configure(ivi_output->output, section,
 952                                                    modeline, api);
 953         if (ret < 0) {
 954                 weston_log("Cannot configure remoted output \"%s\".\n",
 955                                 output_name);
 956                 goto err;
 957         }
 958
 959         if ((ret = weston_output_enable(ivi_output->output)) < 0) {
 960                 weston_log("Enabling remoted output \"%s\" failed.\n",
 961                                 output_name);
 962                 goto err;
 963         }
 964
 965         free(modeline);
 966         free(output_name);
 967         weston_log("remoted output '%s' enabled\n", ivi_output->output->name);
 968
 969         return 0;
 970
 971 err:
 972         free(modeline);
 973         free(output_name);
 974         if (ivi_output->output)
 975                 weston_output_destroy(ivi_output->output);
 976
 977         return ret;
 978 }
 979
 980 static void
 981 ivi_enable_remote_outputs(struct ivi_compositor *ivi)
 982 {
 983         struct weston_config_section *remote_section = NULL;
 984         const char *section_name;
 985         struct weston_config *config = ivi->config;
 986
 987         while (weston_config_next_section(config, &remote_section, &section_name)) {
 988                 if (strcmp(section_name, "remote-output"))
 989                         continue;
 990
 991                 struct ivi_output *ivi_output = NULL;
 992                 bool output_found = false;
 993                 char *_name = NULL;
 994
 995                 weston_config_section_get_string(remote_section,
 996                                                  "name", &_name, NULL);
 997                 wl_list_for_each(ivi_output, &ivi->outputs, link) {
 998                         if (!strcmp(ivi_output->name, _name)) {
 999                                 output_found = true;
1000                                 break;
1001                         }
1002                 }
1003
1004                 if (output_found) {
1005                         free(_name);
1006                         continue;
1007                 }
1008
1009                 ivi_output = zalloc(sizeof(*ivi_output));
1010                 if (!ivi_output) {
1011                         free(_name);
1012                         continue;
1013                 }
1014
1015                 ivi_output->ivi = ivi;
1016                 ivi_output->name = _name;
1017                 ivi_output->config = remote_section;
1018                 ivi_output->type = OUTPUT_REMOTE;
1019
1020                 if (remote_output_init(ivi_output, ivi->compositor,
1021                                        remote_section, ivi->remoting_api)) {
1022                         free(ivi_output->name);
1023                         free(ivi_output);
1024                         continue;
1025                 }
1026
1027                 ivi_output->output_destroy.notify = handle_output_destroy;
1028                 weston_output_add_destroy_listener(ivi_output->output,
1029                                                    &ivi_output->output_destroy);
1030
1031                 wl_list_insert(&ivi->outputs, &ivi_output->link);
1032                 ivi_output_configure_app_id(ivi_output);
1033         }
1034 }
1035
1036 static int
1037 load_remoting_plugin(struct ivi_compositor *ivi, struct weston_config *config)
1038 {
1039         struct weston_compositor *compositor = ivi->compositor;
1040         int (*module_init)(struct weston_compositor *wc);
1041
1042         module_init = weston_load_module("remoting-plugin.so",
1043                                          "weston_module_init",
1044                                          LIBWESTON_MODULEDIR);
1045         if (!module_init)
1046                 return -1;
1047
1048         if (module_init(compositor) < 0)
1049                 return -1;
1050
1051         ivi->remoting_api = weston_remoting_get_api(compositor);
1052         if (!ivi->remoting_api)
1053                 return -1;
1054         return 0;
1055 }
1056 #else
1057 static int
1058 load_remoting_plugin(struct weston_compositor *compositor, struct weston_config *config)
1059 {
1060         return -1;
1061 }
1062 #endif
1063
1064 static int
1065 load_drm_backend(struct ivi_compositor *ivi, int *argc, char *argv[],
1066                  enum weston_renderer_type renderer)
1067 {
1068         struct weston_drm_backend_config config = {
1069                 .base = {
1070                         .struct_version = WESTON_DRM_BACKEND_CONFIG_VERSION,
1071                         .struct_size = sizeof config,
1072                 },
1073         };
1074         struct weston_config_section *section;
1075         int use_current_mode = 0;
1076         bool force_pixman = false;
1077         bool use_shadow;
1078         bool without_input = false;
1079         int ret;
1080
1081         const struct weston_option options[] = {
1082                 { WESTON_OPTION_STRING, "seat", 0, &config.seat_id },
1083                 { WESTON_OPTION_STRING, "drm-device", 0, &config.specific_device },
1084                 { WESTON_OPTION_BOOLEAN, "current-mode", 0, &use_current_mode },
1085                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &force_pixman },
1086                 { WESTON_OPTION_BOOLEAN, "continue-without-input", false, &without_input }
1087         };
1088
1089         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1090
1091         if (force_pixman)
1092                 config.renderer = WESTON_RENDERER_PIXMAN;
1093         else
1094                 config.renderer = WESTON_RENDERER_AUTO;
1095
1096         ivi->cmdline.use_current_mode = use_current_mode;
1097
1098         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
1099         weston_config_section_get_string(section, "gbm-format",
1100                                          &config.gbm_format, NULL);
1101         weston_config_section_get_uint(section, "pageflip-timeout",
1102                                        &config.pageflip_timeout, 0);
1103         weston_config_section_get_bool(section, "pixman-shadow", &use_shadow, 1);
1104         config.use_pixman_shadow = use_shadow;
1105
1106         if (without_input)
1107                 ivi->compositor->require_input = !without_input;
1108
1109         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_DRM,
1110                                              &config.base);
1111         if (ret < 0)
1112                 return ret;
1113
1114         ivi->drm_api = weston_drm_output_get_api(ivi->compositor);
1115         if (!ivi->drm_api) {
1116                 weston_log("Cannot use drm output api.\n");
1117                 ret = -1;
1118                 goto error;
1119         }
1120
1121         load_remoting_plugin(ivi, ivi->config);
1122
1123 error:
1124         free(config.gbm_format);
1125         free(config.seat_id);
1126         return ret;
1127 }
1128
1129 static void
1130 windowed_parse_common_options(struct ivi_compositor *ivi, int *argc, char *argv[],
1131                               bool *force_pixman, bool *fullscreen, int *output_count)
1132 {
1133         struct weston_config_section *section;
1134         bool pixman;
1135         int fs = 0;
1136
1137         const struct weston_option options[] = {
1138                 { WESTON_OPTION_INTEGER, "width", 0, &ivi->cmdline.width },
1139                 { WESTON_OPTION_INTEGER, "height", 0, &ivi->cmdline.height },
1140                 { WESTON_OPTION_INTEGER, "scale", 0, &ivi->cmdline.scale },
1141                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &force_pixman },
1142                 { WESTON_OPTION_BOOLEAN, "fullscreen", 0, &fs },
1143                 { WESTON_OPTION_INTEGER, "output-count", 0, output_count },
1144         };
1145
1146         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
1147         weston_config_section_get_bool(section, "use-pixman", &pixman, false);
1148
1149         *output_count = 1;
1150         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1151         *force_pixman = pixman;
1152         *fullscreen = fs;
1153 }
1154
1155 static int
1156 windowed_create_outputs(struct ivi_compositor *ivi, int output_count,
1157                         const char *match_prefix, const char *name_prefix)
1158 {
1159         struct weston_config_section *section = NULL;
1160         const char *section_name;
1161         char *default_output = NULL;
1162         int i = 0;
1163         size_t match_len = strlen(match_prefix);
1164
1165         while (weston_config_next_section(ivi->config, &section, &section_name)) {
1166                 char *output_name;
1167
1168                 if (i >= output_count)
1169                         break;
1170
1171                 if (strcmp(section_name, "output") != 0)
1172                         continue;
1173
1174                 weston_config_section_get_string(section, "name", &output_name, NULL);
1175                 if (output_name == NULL)
1176                         continue;
1177                 if (strncmp(output_name, match_prefix, match_len) != 0) {
1178                         free(output_name);
1179                         continue;
1180                 }
1181
1182                 if (ivi->window_api->create_head(ivi->compositor->backend, output_name) < 0) {
1183                         free(output_name);
1184                         return -1;
1185                 }
1186
1187                 free(output_name);
1188                 ++i;
1189         }
1190
1191         for (; i < output_count; ++i) {
1192                 if (asprintf(&default_output, "%s%d", name_prefix, i) < 0)
1193                         return -1;
1194
1195                 if (ivi->window_api->create_head(ivi->compositor->backend, default_output) < 0) {
1196                         free(default_output);
1197                         return -1;
1198                 }
1199
1200                 free(default_output);
1201         }
1202
1203         return 0;
1204 }
1205
1206 static int
1207 load_wayland_backend(struct ivi_compositor *ivi, int *argc, char *argv[],
1208                      enum weston_renderer_type renderer)
1209 {
1210         struct weston_wayland_backend_config config = {
1211                 .base = {
1212                         .struct_version = WESTON_WAYLAND_BACKEND_CONFIG_VERSION,
1213                         .struct_size = sizeof config,
1214                 },
1215         };
1216         struct weston_config_section *section;
1217         int sprawl = 0;
1218         int output_count;
1219         bool force_pixman = false;
1220         int ret;
1221
1222         const struct weston_option options[] = {
1223                 { WESTON_OPTION_STRING, "display", 0, &config.display_name },
1224                 { WESTON_OPTION_STRING, "sprawl", 0, &sprawl },
1225         };
1226
1227         windowed_parse_common_options(ivi, argc, argv, &force_pixman,
1228                                       &config.fullscreen, &output_count);
1229
1230         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1231         config.sprawl = sprawl;
1232
1233         section = weston_config_get_section(ivi->config, "shell", NULL, NULL);
1234         weston_config_section_get_string(section, "cursor-theme",
1235                                          &config.cursor_theme, NULL);
1236         weston_config_section_get_int(section, "cursor-size",
1237                                       &config.cursor_size, 32);
1238
1239         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_WAYLAND,
1240                                              &config.base);
1241
1242         free(config.cursor_theme);
1243         free(config.display_name);
1244
1245         if (ret < 0)
1246                 return ret;
1247
1248         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
1249
1250         /*
1251          * We will just assume if load_backend() finished cleanly and
1252          * windowed_output_api is not present that wayland backend is started
1253          * with --sprawl or runs on fullscreen-shell. In this case, all values
1254          * are hardcoded, so nothing can be configured; simply create and
1255          * enable an output.
1256          */
1257         if (ivi->window_api == NULL)
1258                 return 0;
1259
1260         return windowed_create_outputs(ivi, output_count, "WL", "wayland");
1261 }
1262
1263 #ifdef HAVE_BACKEND_X11
1264 static int
1265 load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[],
1266                  enum weston_renderer_type renderer)
1267 {
1268         struct weston_x11_backend_config config = {
1269                 .base = {
1270                         .struct_version = WESTON_X11_BACKEND_CONFIG_VERSION,
1271                         .struct_size = sizeof config,
1272                 },
1273         };
1274         int no_input = 0;
1275         int output_count;
1276         int ret;
1277         bool force_pixman = false;
1278
1279         const struct weston_option options[] = {
1280                { WESTON_OPTION_BOOLEAN, "no-input", 0, &no_input },
1281         };
1282
1283         windowed_parse_common_options(ivi, argc, argv, &force_pixman,
1284                                       &config.fullscreen, &output_count);
1285
1286         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1287         if (force_pixman)
1288                 config.renderer = WESTON_RENDERER_PIXMAN;
1289         else
1290                 config.renderer = WESTON_RENDERER_AUTO;
1291         config.no_input = no_input;
1292
1293         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_X11,
1294                                              &config.base);
1295
1296         if (ret < 0)
1297                 return ret;
1298
1299         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
1300         if (!ivi->window_api) {
1301                 weston_log("Cannot use weston_windowed_output_api.\n");
1302                 return -1;
1303         }
1304
1305         return windowed_create_outputs(ivi, output_count, "X", "screen");
1306 }
1307 #else
1308 static int
1309 load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
1310 {
1311         return -1;
1312 }
1313 #endif
1314
1315 #ifdef HAVE_BACKEND_HEADLESS
1316 static int
1317 load_headless_backend(struct ivi_compositor *ivi, int *argc, char **argv,
1318                       enum weston_renderer_type renderer)
1319 {
1320         struct weston_headless_backend_config config = {};
1321         int ret = 0;
1322
1323         bool force_pixman = false;
1324         bool fullscreen;
1325         bool force_gl = false;
1326         int output_count;
1327
1328         struct weston_compositor *c = ivi->compositor;
1329
1330         const struct weston_option options[] = {
1331                 { WESTON_OPTION_BOOLEAN, "use-pixman", false, &force_pixman },
1332                 { WESTON_OPTION_BOOLEAN, "use-gl", false, &force_gl },
1333         };
1334
1335         windowed_parse_common_options(ivi, argc, argv, &force_pixman,
1336                         &fullscreen, &output_count);
1337
1338         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1339
1340         if ((force_pixman && force_gl) ||
1341             (renderer != WESTON_RENDERER_AUTO && (force_pixman || force_gl))) {
1342                 weston_log("Conflicting renderer specifications\n");
1343                 return -1;
1344         } else if (force_pixman) {
1345                 config.renderer = WESTON_RENDERER_PIXMAN;
1346         } else if (force_gl) {
1347                 config.renderer = WESTON_RENDERER_GL;
1348         } else {
1349                 config.renderer = renderer;
1350         }
1351
1352         config.base.struct_version = WESTON_HEADLESS_BACKEND_CONFIG_VERSION;
1353         config.base.struct_size = sizeof(struct weston_headless_backend_config);
1354
1355         /* load the actual headless-backend and configure it */
1356         ret = weston_compositor_load_backend(c, WESTON_BACKEND_HEADLESS,
1357                                              &config.base);
1358         if (ret < 0)
1359                 return ret;
1360
1361         ivi->window_api = weston_windowed_output_get_api(c);
1362         if (!ivi->window_api) {
1363                 weston_log("Cannot use weston_windowed_output_api.\n");
1364                 return -1;
1365         }
1366
1367         if (ivi->window_api->create_head(c->backend, "headless") < 0) {
1368                 weston_log("Cannot create headless back-end\n");
1369                 return -1;
1370         }
1371
1372         return 0;
1373 }
1374 #else
1375 static int
1376 load_headless_backend(struct ivi_compositor *ivi, int *argc, char **argv, enum weston_renderer_type renderer)
1377 {
1378         return -1;
1379 }
1380 #endif
1381
1382 #ifdef HAVE_BACKEND_RDP
1383 static void
1384 weston_rdp_backend_config_init(struct weston_rdp_backend_config *config)
1385 {
1386         config->base.struct_version = WESTON_RDP_BACKEND_CONFIG_VERSION;
1387         config->base.struct_size = sizeof(struct weston_rdp_backend_config);
1388
1389         config->bind_address = NULL;
1390         config->port = 3389;
1391         config->rdp_key = NULL;
1392         config->server_cert = NULL;
1393         config->server_key = NULL;
1394         config->env_socket = 0;
1395         config->no_clients_resize = 1;
1396         config->force_no_compression = 0;
1397 }
1398
1399 static int
1400 rdp_backend_output_configure(struct weston_output *output)
1401 {
1402         struct ivi_compositor *ivi = to_ivi_compositor(output->compositor);
1403         struct ivi_output_config *parsed_options = ivi->parsed_options;
1404         const struct weston_rdp_output_api *api =
1405                 weston_rdp_output_get_api(output->compositor);
1406         int width = 640;
1407         int height = 480;
1408         struct weston_config_section *section;
1409         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
1410         char *transform_string;
1411
1412         assert(parsed_options);
1413
1414         if (!api) {
1415                 weston_log("Cannot use weston_rdp_output_api.\n");
1416                 return -1;
1417         }
1418
1419         section = weston_config_get_section(ivi->config, "rdp", NULL, NULL);
1420
1421         if (parsed_options->width)
1422                 width = parsed_options->width;
1423
1424         if (parsed_options->height)
1425                 height = parsed_options->height;
1426
1427         weston_output_set_scale(output, 1);
1428
1429         weston_config_section_get_int(section, "width",
1430                         &width, width);
1431
1432         weston_config_section_get_int(section, "height",
1433                         &height, height);
1434
1435         if (parsed_options->transform)
1436                 transform = parsed_options->transform;
1437
1438         weston_config_section_get_string(section, "transform",
1439                         &transform_string, "normal");
1440
1441         if (parse_transform(transform_string, &transform) < 0) {
1442                 weston_log("Invalid transform \"%s\" for output %s\n",
1443                            transform_string, output->name);
1444                 return -1;
1445         }
1446
1447         weston_output_set_transform(output, transform);
1448
1449         if (api->output_set_size(output, width, height) < 0) {
1450                 weston_log("Cannot configure output \"%s\" using weston_rdp_output_api.\n",
1451                                 output->name);
1452                 return -1;
1453         }
1454
1455         return 0;
1456 }
1457
1458 static int
1459 load_rdp_backend(struct ivi_compositor *ivi, int *argc, char **argv)
1460 {
1461         struct weston_rdp_backend_config config = {};
1462         int ret = 0;
1463         struct weston_config_section *section;
1464
1465         struct ivi_output_config *parsed_options = ivi_init_parsed_options(ivi->compositor);
1466         if (!parsed_options)
1467                 return -1;
1468
1469         weston_rdp_backend_config_init(&config);
1470
1471         const struct weston_option rdp_options[] = {
1472                 { WESTON_OPTION_BOOLEAN, "env-socket", 0, &config.env_socket },
1473                 { WESTON_OPTION_INTEGER, "width", 0, &parsed_options->width },
1474                 { WESTON_OPTION_INTEGER, "height", 0, &parsed_options->height },
1475                 { WESTON_OPTION_INTEGER, "transform", 0, &parsed_options->transform },
1476                 { WESTON_OPTION_INTEGER, "scale", 0, &parsed_options->scale },
1477                 { WESTON_OPTION_STRING,  "address", 0, &config.bind_address },
1478                 { WESTON_OPTION_INTEGER, "port", 0, &config.port },
1479                 { WESTON_OPTION_BOOLEAN, "no-clients-resize", 0, &config.no_clients_resize },
1480                 { WESTON_OPTION_STRING,  "rdp4-key", 0, &config.rdp_key },
1481                 { WESTON_OPTION_STRING,  "rdp-tls-cert", 0, &config.server_cert },
1482                 { WESTON_OPTION_STRING,  "rdp-tls-key", 0, &config.server_key },
1483                 { WESTON_OPTION_BOOLEAN, "force-no-compression", 0, &config.force_no_compression },
1484         };
1485
1486         section = weston_config_get_section(ivi->config, "rdp", NULL, NULL);
1487
1488         weston_config_section_get_string(section, "tls-cert",
1489                         &config.server_cert, config.server_cert);
1490
1491         weston_config_section_get_string(section, "tls-key",
1492                         &config.server_key, config.server_key);
1493
1494
1495         parse_options(rdp_options, ARRAY_LENGTH(rdp_options), argc, argv);
1496
1497         ivi->simple_output_configure = rdp_backend_output_configure;
1498         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_RDP, &config.base);
1499
1500         free(config.bind_address);
1501         free(config.rdp_key);
1502         free(config.server_cert);
1503         free(config.server_key);
1504
1505         return ret;
1506 }
1507 #else
1508 static int
1509 load_rdp_backend(struct ivi_compositor *ivi, int *argc, char **argv)
1510 {
1511         return -1;
1512 }
1513 #endif
1514
1515
1516 static int
1517 load_backend(struct ivi_compositor *ivi, int *argc, char **argv,
1518              const char *backend_name, const char *renderer_name)
1519 {
1520         enum weston_compositor_backend backend;
1521         enum weston_renderer_type renderer;
1522
1523         if (!get_backend_from_string(backend_name, &backend)) {
1524                 weston_log("Error: unknown backend \"%s\"\n", backend_name);
1525                 return -1;
1526         }
1527
1528         if (!get_renderer_from_string(renderer_name, &renderer)) {
1529                 weston_log("Error: unknown renderer \"%s\"\n", renderer_name);
1530                 return -1;
1531         }
1532         if (strcmp(backend, "drm-backend.so") == 0) {
1533                 return load_drm_backend(ivi, argc, argv);
1534         } else if (strcmp(backend, "wayland-backend.so") == 0) {
1535                 return load_wayland_backend(ivi, argc, argv);
1536         } else if (strcmp(backend, "x11-backend.so") == 0) {
1537                 return load_x11_backend(ivi, argc, argv);
1538         } else if (strcmp(backend, "headless-backend.so") == 0) {
1539                 return load_headless_backend(ivi, argc, argv);
1540         } else if (strcmp(backend, "rdp-backend.so") == 0) {
1541                 return load_rdp_backend(ivi, argc, argv);
1542
1543         weston_log("fatal: unknown backend '%s'.\n", backend_name);
1544         return -1;
1545 }
1546
1547 static int
1548 load_modules(struct ivi_compositor *ivi, const char *modules,
1549              int *argc, char *argv[], bool *xwayland)
1550 {
1551         const char *p, *end;
1552         char buffer[256];
1553         int (*module_init)(struct weston_compositor *wc, int argc, char *argv[]);
1554
1555         if (modules == NULL)
1556                 return 0;
1557
1558         p = modules;
1559         while (*p) {
1560                 end = strchrnul(p, ',');
1561                 snprintf(buffer, sizeof buffer, "%.*s", (int) (end - p), p);
1562
1563                 if (strstr(buffer, "xwayland.so")) {
1564                         *xwayland = true;
1565                 } else if (strstr(buffer, "systemd-notify.so")) {
1566                         weston_log("systemd-notify plug-in already loaded!\n");
1567                 } else {
1568                         module_init = weston_load_module(buffer, "wet_module_init", WESTON_MODULEDIR);
1569                         if (!module_init)
1570                                 return -1;
1571
1572                         if (module_init(ivi->compositor, *argc, argv) < 0)
1573                                 return -1;
1574
1575                 }
1576
1577                 p = end;
1578                 while (*p == ',')
1579                         p++;
1580         }
1581
1582         return 0;
1583 }
1584
1585
1586 static char *
1587 choose_default_backend(void)
1588 {
1589         char *backend = NULL;
1590
1591         if (getenv("WAYLAND_DISPLAY") || getenv("WAYLAND_SOCKET"))
1592                 backend = strdup("wayland-backend.so");
1593         else if (getenv("DISPLAY"))
1594                 backend = strdup("x11-backend.so");
1595         else
1596                 backend = strdup("drm-backend.so");
1597
1598         return backend;
1599 }
1600
1601 static int
1602 compositor_init_config(struct ivi_compositor *ivi)
1603 {
1604         struct xkb_rule_names xkb_names;
1605         struct weston_config_section *section;
1606         struct weston_compositor *compositor = ivi->compositor;
1607         struct weston_config *config = ivi->config;
1608         int repaint_msec;
1609         bool vt_switching;
1610         bool require_input;
1611
1612         /* agl-compositor.ini [keyboard] */
1613         section = weston_config_get_section(config, "keyboard", NULL, NULL);
1614         weston_config_section_get_string(section, "keymap_rules",
1615                                          (char **) &xkb_names.rules, NULL);
1616         weston_config_section_get_string(section, "keymap_model",
1617                                          (char **) &xkb_names.model, NULL);
1618         weston_config_section_get_string(section, "keymap_layout",
1619                                          (char **) &xkb_names.layout, NULL);
1620         weston_config_section_get_string(section, "keymap_variant",
1621                                          (char **) &xkb_names.variant, NULL);
1622         weston_config_section_get_string(section, "keymap_options",
1623                                          (char **) &xkb_names.options, NULL);
1624
1625         if (weston_compositor_set_xkb_rule_names(compositor, &xkb_names) < 0)
1626                 return -1;
1627
1628         weston_config_section_get_int(section, "repeat-rate",
1629                                       &compositor->kb_repeat_rate, 40);
1630         weston_config_section_get_int(section, "repeat-delay",
1631                                       &compositor->kb_repeat_delay, 400);
1632
1633         weston_config_section_get_bool(section, "vt-switching",
1634                                        &vt_switching, false);
1635         compositor->vt_switching = vt_switching;
1636
1637         /* agl-compositor.ini [core] */
1638         section = weston_config_get_section(config, "core", NULL, NULL);
1639
1640         weston_config_section_get_bool(section, "disable-cursor",
1641                                        &ivi->disable_cursor, false);
1642         weston_config_section_get_bool(section, "activate-by-default",
1643                                        &ivi->activate_by_default, true);
1644
1645         weston_config_section_get_bool(section, "require-input", &require_input, true);
1646         compositor->require_input = require_input;
1647
1648         weston_config_section_get_int(section, "repaint-window", &repaint_msec,
1649                                       compositor->repaint_msec);
1650         if (repaint_msec < -10 || repaint_msec > 1000) {
1651                 weston_log("Invalid repaint_window value in config: %d\n",
1652                            repaint_msec);
1653         } else {
1654                 compositor->repaint_msec = repaint_msec;
1655         }
1656         weston_log("Output repaint window is %d ms maximum.\n",
1657                    compositor->repaint_msec);
1658
1659         return 0;
1660 }
1661
1662 struct ivi_surface *
1663 to_ivi_surface(struct weston_surface *surface)
1664 {
1665         struct weston_desktop_surface *dsurface;
1666
1667         dsurface = weston_surface_get_desktop_surface(surface);
1668         if (!dsurface)
1669                 return NULL;
1670
1671         return weston_desktop_surface_get_user_data(dsurface);
1672 }
1673
1674 static void
1675 activate_binding(struct weston_seat *seat,
1676                  struct weston_view *focus_view, uint32_t flags)
1677 {
1678         struct weston_surface *focus_surface;
1679         struct weston_surface *main_surface;
1680         struct ivi_surface *ivi_surface;
1681         struct ivi_shell_seat *ivi_seat = get_ivi_shell_seat(seat);
1682
1683         if (!focus_view)
1684                 return;
1685
1686         focus_surface = focus_view->surface;
1687         main_surface = weston_surface_get_main_surface(focus_surface);
1688
1689         ivi_surface = to_ivi_surface(main_surface);
1690         if (!ivi_surface)
1691                 return;
1692
1693         if (ivi_seat)
1694                 ivi_shell_activate_surface(ivi_surface, ivi_seat, flags);
1695 }
1696
1697 static void
1698 click_to_activate_binding(struct weston_pointer *pointer,
1699                           const struct timespec *time,
1700                           uint32_t button, void *data)
1701 {
1702         if (pointer->grab != &pointer->default_grab)
1703                 return;
1704         if (pointer->focus == NULL)
1705                 return;
1706
1707         activate_binding(pointer->seat, pointer->focus,
1708                          WESTON_ACTIVATE_FLAG_CLICKED);
1709 }
1710
1711 static void
1712 touch_to_activate_binding(struct weston_touch *touch,
1713                           const struct timespec *time,
1714                           void *data)
1715 {
1716         if (touch->grab != &touch->default_grab)
1717                 return;
1718         if (touch->focus == NULL)
1719                 return;
1720
1721         activate_binding(touch->seat, touch->focus,
1722                          WESTON_ACTIVATE_FLAG_NONE);
1723 }
1724
1725 static void
1726 add_bindings(struct weston_compositor *compositor)
1727 {
1728         weston_compositor_add_button_binding(compositor, BTN_LEFT, 0,
1729                                              click_to_activate_binding,
1730                                              NULL);
1731         weston_compositor_add_button_binding(compositor, BTN_RIGHT, 0,
1732                                              click_to_activate_binding,
1733                                              NULL);
1734         weston_compositor_add_touch_binding(compositor, 0,
1735                                             touch_to_activate_binding,
1736                                             NULL);
1737 }
1738
1739 static int
1740 create_listening_socket(struct wl_display *display, const char *socket_name)
1741 {
1742         if (socket_name) {
1743                 if (wl_display_add_socket(display, socket_name)) {
1744                         weston_log("fatal: failed to add socket: %s\n",
1745                                    strerror(errno));
1746                         return -1;
1747                 }
1748         } else {
1749                 socket_name = wl_display_add_socket_auto(display);
1750                 if (!socket_name) {
1751                         weston_log("fatal: failed to add socket: %s\n",
1752                                    strerror(errno));
1753                         return -1;
1754                 }
1755         }
1756
1757         setenv("WAYLAND_DISPLAY", socket_name, 1);
1758
1759         return 0;
1760 }
1761
1762 static bool
1763 global_filter(const struct wl_client *client, const struct wl_global *global,
1764               void *data)
1765 {
1766         return true;
1767 }
1768
1769 static int
1770 load_config(struct weston_config **config, bool no_config,
1771             const char *config_file)
1772 {
1773         const char *file = "agl-compositor.ini";
1774         const char *full_path;
1775
1776         if (config_file)
1777                 file = config_file;
1778
1779         if (!no_config)
1780                 *config = weston_config_parse(file);
1781
1782         if (*config) {
1783                 full_path = weston_config_get_full_path(*config);
1784
1785                 weston_log("Using config file '%s'.\n", full_path);
1786                 setenv(WESTON_CONFIG_FILE_ENV_VAR, full_path, 1);
1787
1788                 return 0;
1789         }
1790
1791         if (config_file && !no_config) {
1792                 weston_log("fatal: error opening or reading config file '%s'.\n",
1793                         config_file);
1794
1795                 return -1;
1796         }
1797
1798         weston_log("Starting with no config file.\n");
1799         setenv(WESTON_CONFIG_FILE_ENV_VAR, "", 1);
1800
1801         return 0;
1802 }
1803
1804 static FILE *logfile;
1805
1806 static char *
1807 log_timestamp(char *buf, size_t len)
1808 {
1809         struct timeval tv;
1810         struct tm *brokendown_time;
1811         char datestr[128];
1812         char timestr[128];
1813
1814         gettimeofday(&tv, NULL);
1815
1816         brokendown_time = localtime(&tv.tv_sec);
1817         if (brokendown_time == NULL) {
1818                 snprintf(buf, len, "%s", "[(NULL)localtime] ");
1819                 return buf;
1820         }
1821
1822         memset(datestr, 0, sizeof(datestr));
1823         if (brokendown_time->tm_mday != cached_tm_mday) {
1824                 strftime(datestr, sizeof(datestr), "Date: %Y-%m-%d %Z\n",
1825                                 brokendown_time);
1826                 cached_tm_mday = brokendown_time->tm_mday;
1827         }
1828
1829         strftime(timestr, sizeof(timestr), "%H:%M:%S", brokendown_time);
1830         /* if datestr is empty it prints only timestr*/
1831         snprintf(buf, len, "%s[%s.%03li]", datestr,
1832                         timestr, (tv.tv_usec / 1000));
1833
1834         return buf;
1835 }
1836
1837 static void
1838 custom_handler(const char *fmt, va_list arg)
1839 {
1840         char timestr[512];
1841
1842         weston_log_scope_printf(log_scope, "%s libwayland: ",
1843                         log_timestamp(timestr, sizeof(timestr)));
1844         weston_log_scope_vprintf(log_scope, fmt, arg);
1845 }
1846
1847 static void
1848 log_file_open(const char *filename)
1849 {
1850         wl_log_set_handler_server(custom_handler);
1851
1852         if (filename)
1853                 logfile = fopen(filename, "a");
1854
1855         if (!logfile) {
1856                 logfile = stderr;
1857         } else {
1858                 os_fd_set_cloexec(fileno(logfile));
1859                 setvbuf(logfile, NULL, _IOLBF, 256);
1860         }
1861 }
1862
1863 static void
1864 log_file_close(void)
1865 {
1866         if (logfile && logfile != stderr)
1867                 fclose(logfile);
1868         logfile = stderr;
1869 }
1870
1871 static int
1872 vlog(const char *fmt, va_list ap)
1873 {
1874         const char *oom = "Out of memory";
1875         char timestr[128];
1876         int len = 0;
1877         char *str;
1878
1879         if (weston_log_scope_is_enabled(log_scope)) {
1880                 int len_va;
1881                 char *xlog_timestamp = log_timestamp(timestr, sizeof(timestr));
1882                 len_va = vasprintf(&str, fmt, ap);
1883                 if (len_va >= 0) {
1884                         len = weston_log_scope_printf(log_scope, "%s %s",
1885                                         xlog_timestamp, str);
1886                         free(str);
1887                 } else {
1888                         len = weston_log_scope_printf(log_scope, "%s %s",
1889                                         xlog_timestamp, oom);
1890                 }
1891         }
1892
1893         return len;
1894 }
1895
1896
1897 static int
1898 vlog_continue(const char *fmt, va_list ap)
1899 {
1900         return weston_log_scope_vprintf(log_scope, fmt, ap);
1901 }
1902
1903 static int
1904 on_term_signal(int signo, void *data)
1905 {
1906         struct wl_display *display = data;
1907
1908         weston_log("caught signal %d\n", signo);
1909         wl_display_terminate(display);
1910
1911         return 1;
1912 }
1913
1914 static void
1915 handle_exit(struct weston_compositor *compositor)
1916 {
1917         wl_display_terminate(compositor->wl_display);
1918 }
1919
1920 static void
1921 usage(int error_code)
1922 {
1923         FILE *out = error_code == EXIT_SUCCESS ? stdout : stderr;
1924         fprintf(out,
1925                 "Usage: agl-compositor [OPTIONS]\n"
1926                 "\n"
1927                 "This is " PACKAGE_STRING ", the reference compositor for\n"
1928                 "Automotive Grade Linux. " PACKAGE_STRING " supports multiple "
1929                 "backends,\nand depending on which backend is in use different "
1930                 "options will be accepted.\n"
1931                 "\n"
1932                 "Core options:\n"
1933                 "\n"
1934                 "  --version\t\tPrint agl-compositor version\n"
1935                 "  -B, --backend=MODULE\tBackend module, one of\n"
1936                         "\t\t\t\tdrm-backend.so\n"
1937                         "\t\t\t\twayland-backend.so\n"
1938                         "\t\t\t\tx11-backend.so\n"
1939                         "\t\t\t\theadless-backend.so\n"
1940                 "  -S, --socket=NAME\tName of socket to listen on\n"
1941                 "  --log=FILE\t\tLog to the given file\n"
1942                 "  -c, --config=FILE\tConfig file to load, defaults to agl-compositor.ini\n"
1943                 "  --no-config\t\tDo not read agl-compositor.ini\n"
1944                 "  --debug\t\tEnable debug extension(s)\n"
1945                 "  -h, --help\t\tThis help message\n"
1946                 "\n");
1947         exit(error_code);
1948 }
1949
1950 static char *
1951 copy_command_line(int argc, char * const argv[])
1952 {
1953         FILE *fp;
1954         char *str = NULL;
1955         size_t size = 0;
1956         int i;
1957
1958         fp = open_memstream(&str, &size);
1959         if (!fp)
1960                 return NULL;
1961
1962         fprintf(fp, "%s", argv[0]);
1963         for (i = 1; i < argc; i++)
1964                 fprintf(fp, " %s", argv[i]);
1965         fclose(fp);
1966
1967         return str;
1968 }
1969
1970 #if !defined(BUILD_XWAYLAND)
1971 int
1972 wet_load_xwayland(struct weston_compositor *comp)
1973 {
1974         weston_log("Attempted to load xwayland library but compositor "
1975                    "was *not* built with xwayland support!\n");
1976         return -1;
1977 }
1978 #endif
1979
1980 static void
1981 weston_log_setup_scopes(struct weston_log_context *log_ctx,
1982                         struct weston_log_subscriber *subscriber,
1983                         const char *names)
1984 {
1985         assert(log_ctx);
1986         assert(subscriber);
1987
1988         char *tokenize = strdup(names);
1989         char *token = strtok(tokenize, ",");
1990         while (token) {
1991                 weston_log_subscribe(log_ctx, subscriber, token);
1992                 token = strtok(NULL, ",");
1993         }
1994         free(tokenize);
1995 }
1996
1997 static void
1998 weston_log_subscribe_to_scopes(struct weston_log_context *log_ctx,
1999                                struct weston_log_subscriber *logger,
2000                                const char *debug_scopes)
2001 {
2002         if (logger && debug_scopes)
2003                 weston_log_setup_scopes(log_ctx, logger, debug_scopes);
2004         else
2005                 weston_log_subscribe(log_ctx, logger, "log");
2006 }
2007
2008 WL_EXPORT
2009 int wet_main(int argc, char *argv[], const struct weston_testsuite_data *test_data)
2010 {
2011         struct ivi_compositor ivi = { 0 };
2012         char *cmdline;
2013         struct wl_display *display = NULL;
2014         struct wl_event_loop *loop;
2015         struct wl_event_source *signals[3] = { 0 };
2016         struct weston_config_section *section;
2017         /* Command line options */
2018         char *backend = NULL;
2019         char *socket_name = NULL;
2020         char *log = NULL;
2021         char *modules = NULL;
2022         char *option_modules = NULL;
2023         char *debug_scopes = NULL;
2024         int help = 0;
2025         int version = 0;
2026         int no_config = 0;
2027         int debug = 0;
2028         bool list_debug_scopes = false;
2029         char *config_file = NULL;
2030         struct weston_log_context *log_ctx = NULL;
2031         struct weston_log_subscriber *logger;
2032         int ret = EXIT_FAILURE;
2033         bool xwayland = false;
2034         struct sigaction action;
2035         char *renderer = NULL;
2036
2037         const struct weston_option core_options[] = {
2038                 { WESTON_OPTION_STRING, "renderer", 0, &renderer },
2039                 { WESTON_OPTION_STRING, "backend", 'B', &backend },
2040                 { WESTON_OPTION_STRING, "socket", 'S', &socket_name },
2041                 { WESTON_OPTION_STRING, "log", 0, &log },
2042                 { WESTON_OPTION_BOOLEAN, "help", 'h', &help },
2043                 { WESTON_OPTION_BOOLEAN, "version", 0, &version },
2044                 { WESTON_OPTION_BOOLEAN, "no-config", 0, &no_config },
2045                 { WESTON_OPTION_BOOLEAN, "debug", 0, &debug },
2046                 { WESTON_OPTION_STRING, "config", 'c', &config_file },
2047                 { WESTON_OPTION_STRING, "modules", 0, &option_modules },
2048                 { WESTON_OPTION_STRING, "debug-scopes", 'l', &debug_scopes },
2049                 { WESTON_OPTION_STRING, "list-debug-scopes", 'L', &list_debug_scopes },
2050         };
2051
2052         wl_list_init(&ivi.outputs);
2053         wl_list_init(&ivi.saved_outputs);
2054         wl_list_init(&ivi.surfaces);
2055         wl_list_init(&ivi.pending_surfaces);
2056         wl_list_init(&ivi.popup_pending_apps);
2057         wl_list_init(&ivi.fullscreen_pending_apps);
2058         wl_list_init(&ivi.split_pending_apps);
2059         wl_list_init(&ivi.remote_pending_apps);
2060         wl_list_init(&ivi.desktop_clients);
2061         wl_list_init(&ivi.child_process_list);
2062         wl_list_init(&ivi.pending_apps);
2063
2064         /* Prevent any clients we spawn getting our stdin */
2065         os_fd_set_cloexec(STDIN_FILENO);
2066
2067         cmdline = copy_command_line(argc, argv);
2068         parse_options(core_options, ARRAY_LENGTH(core_options), &argc, argv);
2069
2070         if (help)
2071                 usage(EXIT_SUCCESS);
2072
2073         if (version) {
2074                 printf(PACKAGE_STRING "\n");
2075                 ret = EXIT_SUCCESS;
2076                 goto exit_signals;
2077         }
2078
2079         log_ctx = weston_log_ctx_create();
2080         if (!log_ctx) {
2081                 fprintf(stderr, "Failed to initialize weston debug framework.\n");
2082                 goto exit_signals;
2083         }
2084
2085         log_scope = weston_log_ctx_add_log_scope(log_ctx, "log",
2086                                                  "agl-compositor log\n",
2087                                                  NULL, NULL, NULL);
2088
2089         log_file_open(log);
2090         weston_log_set_handler(vlog, vlog_continue);
2091
2092         logger = weston_log_subscriber_create_log(logfile);
2093         weston_log_subscribe_to_scopes(log_ctx, logger, debug_scopes);
2094
2095         weston_log("Command line: %s\n", cmdline);
2096         free(cmdline);
2097
2098         if (load_config(&ivi.config, no_config, config_file) < 0)
2099                 goto error_signals;
2100         section = weston_config_get_section(ivi.config, "core", NULL, NULL);
2101         if (!backend) {
2102                 weston_config_section_get_string(section, "backend", &backend,
2103                                                  NULL);
2104                 if (!backend)
2105                         backend = choose_default_backend();
2106         }
2107
2108         display = wl_display_create();
2109         loop = wl_display_get_event_loop(display);
2110
2111         wl_display_set_global_filter(display,
2112                                      global_filter, &ivi);
2113
2114         /* Register signal handlers so we shut down cleanly */
2115
2116         signals[0] = wl_event_loop_add_signal(loop, SIGTERM, on_term_signal,
2117                                               display);
2118         signals[1] = wl_event_loop_add_signal(loop, SIGUSR2, on_term_signal,
2119                                               display);
2120         signals[2] = wl_event_loop_add_signal(loop, SIGCHLD, sigchld_handler,
2121                                               display);
2122
2123         /* When debugging the compositor, if use wl_event_loop_add_signal() to
2124          * catch SIGINT, the debugger can't catch it, and attempting to stop
2125          * the compositor from within the debugger results in weston exiting
2126          * cleanly.
2127          *
2128          * Instead, use the sigaction() function, which sets up the signal in a
2129          * way that gdb can successfully catch, but have the handler for SIGINT
2130          * send SIGUSR2 (xwayland uses SIGUSR1), which we catch via
2131          * wl_event_loop_add_signal().
2132          */
2133         action.sa_handler = sigint_helper;
2134         sigemptyset(&action.sa_mask);
2135         action.sa_flags = 0;
2136         sigaction(SIGINT, &action, NULL);
2137
2138         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
2139                 if (!signals[i])
2140                         goto error_signals;
2141
2142         ivi.compositor = weston_compositor_create(display, log_ctx, &ivi, test_data);
2143         if (!ivi.compositor) {
2144                 weston_log("fatal: failed to create compositor.\n");
2145                 goto error_signals;
2146         }
2147
2148         if (compositor_init_config(&ivi) < 0)
2149                 goto error_compositor;
2150
2151         if (load_backend(&ivi, &argc, argv, backend, renderer) < 0) {
2152                 weston_log("fatal: failed to create compositor backend.\n");
2153                 goto error_compositor;
2154         }
2155
2156         ivi.heads_changed.notify = heads_changed;
2157         weston_compositor_add_heads_changed_listener(ivi.compositor,
2158                                                      &ivi.heads_changed);
2159
2160         weston_compositor_flush_heads_changed(ivi.compositor);
2161         if (ivi_desktop_init(&ivi) < 0)
2162                 goto error_compositor;
2163
2164         ivi_seat_init(&ivi);
2165
2166         /* load additional modules */
2167         weston_config_section_get_string(section, "modules", &modules, "");
2168         if (load_modules(&ivi, modules, &argc, argv, &xwayland) < 0)
2169                 goto error_compositor;
2170
2171         if (load_modules(&ivi, option_modules, &argc, argv, &xwayland) < 0)
2172                 goto error_compositor;
2173
2174         if (!xwayland) {
2175                 weston_config_section_get_bool(section, "xwayland", &xwayland,
2176                                                false);
2177         }
2178
2179         if (ivi_shell_init(&ivi) < 0)
2180                 goto error_compositor;
2181
2182         if (xwayland) {
2183                 if (wet_load_xwayland(ivi.compositor) < 0)
2184                         goto error_compositor;
2185         }
2186
2187         if (ivi_policy_init(&ivi) < 0)
2188                 goto error_compositor;
2189
2190
2191         if (list_debug_scopes) {
2192                 struct weston_log_scope *nscope = NULL;
2193
2194                 weston_log("Printing available debug scopes:\n");
2195
2196                 while ((nscope = weston_log_scopes_iterate(log_ctx, nscope))) {
2197                         weston_log("\tscope name: %s, desc: %s",
2198                                         weston_log_scope_get_name(nscope),
2199                                         weston_log_scope_get_description(nscope));
2200                 }
2201
2202                 weston_log("\n");
2203
2204                 goto error_compositor;
2205         }
2206
2207         add_bindings(ivi.compositor);
2208
2209         if (ivi.remoting_api)
2210                 ivi_enable_remote_outputs(&ivi);
2211
2212         if (create_listening_socket(display, socket_name) < 0)
2213                 goto error_compositor;
2214
2215         ivi_shell_init_black_fs(&ivi);
2216
2217         ivi.compositor->exit = handle_exit;
2218
2219         weston_compositor_wake(ivi.compositor);
2220
2221         ivi_shell_create_global(&ivi);
2222
2223         ivi_launch_shell_client(&ivi, "shell-client",
2224                                 &ivi.shell_client.client);
2225         ivi_launch_shell_client(&ivi, "shell-client-ext",
2226                                 &ivi.shell_client_ext.client);
2227
2228         if (debug)
2229                 ivi_screenshooter_create(&ivi);
2230         ivi_agl_systemd_notify(&ivi);
2231
2232         wl_display_run(display);
2233
2234         ret = ivi.compositor->exit_code;
2235
2236         wl_display_destroy_clients(display);
2237
2238 error_compositor:
2239         free(backend);
2240         backend = NULL;
2241         free(modules);
2242         modules = NULL;
2243
2244         weston_compositor_destroy(ivi.compositor);
2245
2246         weston_log_scope_destroy(log_scope);
2247         log_scope = NULL;
2248
2249         weston_log_subscriber_destroy(logger);
2250         weston_log_ctx_destroy(log_ctx);
2251
2252         ivi_policy_destroy(ivi.policy);
2253
2254 error_signals:
2255         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
2256                 if (signals[i])
2257                         wl_event_source_remove(signals[i]);
2258
2259         wl_display_destroy(display);
2260
2261         log_file_close();
2262         if (ivi.config)
2263                 weston_config_destroy(ivi.config);
2264
2265 exit_signals:
2266         free(log);
2267         free(config_file);
2268         free(socket_name);
2269         free(option_modules);
2270         return ret;
2271 }