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(ivi->compositor, head, head->name);
 333                 if (!output->output) {
 334                         free(output->name);
 335                         free(output);
 336                         return NULL;
 337                 }
 338
 339                 int ret = ivi->simple_output_configure(output->output);
 340                 if (ret < 0) {
 341                         weston_log("Configuring output \"%s\" failed.\n",
 342                                         weston_head_get_name(head));
 343                         weston_output_destroy(output->output);
 344                         ivi->init_failed = true;
 345                         return NULL;
 346                 }
 347
 348                 if (weston_output_enable(output->output) < 0) {
 349                         weston_log("Enabling output \"%s\" failed.\n",
 350                                         weston_head_get_name(head));
 351                         weston_output_destroy(output->output);
 352                         ivi->init_failed = true;
 353                         return NULL;
 354                 }
 355
 356         } else {
 357                 output->output =
 358                         weston_compositor_create_output(ivi->compositor, head, name);
 359                 if (!output->output) {
 360                         free(output->name);
 361                         free(output);
 362                         return NULL;
 363                 }
 364         }
 365
 366         output->output_destroy.notify = handle_output_destroy;
 367         weston_output_add_destroy_listener(output->output,
 368                                            &output->output_destroy);
 369
 370         wl_list_insert(&ivi->outputs, &output->link);
 371         ivi_output_configure_app_id(output);
 372         return output;
 373 }
 374
 375 static int
 376 count_heads(struct weston_output *output)
 377 {
 378         struct weston_head *iter = NULL;
 379         int n = 0;
 380
 381         while ((iter = weston_output_iterate_heads(output, iter)))
 382                 ++n;
 383
 384         return n;
 385 }
 386
 387 static void
 388 handle_head_destroy(struct wl_listener *listener, void *data)
 389 {
 390         struct weston_head *head = data;
 391         struct weston_output *output;
 392
 393         wl_list_remove(&listener->link);
 394         free(listener);
 395
 396         output = weston_head_get_output(head);
 397
 398         /* On shutdown path, the output might be already gone. */
 399         if (!output)
 400                 return;
 401
 402         /* We're the last head */
 403         if (count_heads(output) <= 1)
 404                 weston_output_destroy(output);
 405 }
 406
 407 static void
 408 add_head_destroyed_listener(struct weston_head *head)
 409 {
 410         /* We already have a destroy listener */
 411         if (weston_head_get_destroy_listener(head, handle_head_destroy))
 412                 return;
 413
 414         struct wl_listener *listener = zalloc(sizeof *listener);
 415         if (!listener)
 416                 return;
 417
 418         listener->notify = handle_head_destroy;
 419         weston_head_add_destroy_listener(head, listener);
 420 }
 421
 422 static int
 423 drm_configure_output(struct ivi_output *output)
 424 {
 425         struct ivi_compositor *ivi = output->ivi;
 426         struct weston_config_section *section = output->config;
 427         enum weston_drm_backend_output_mode mode =
 428                 WESTON_DRM_BACKEND_OUTPUT_PREFERRED;
 429         char *modeline = NULL;
 430         char *gbm_format = NULL;
 431         char *seat = NULL;
 432
 433         if (section) {
 434                 char *m;
 435                 weston_config_section_get_string(section, "mode", &m, "preferred");
 436
 437                 /* This should have been handled earlier */
 438                 assert(strcmp(m, "off") != 0);
 439
 440                 if (ivi->cmdline.use_current_mode || strcmp(m, "current") == 0) {
 441                         mode = WESTON_DRM_BACKEND_OUTPUT_CURRENT;
 442                 } else if (strcmp(m, "preferred") != 0) {
 443                         modeline = m;
 444                         m = NULL;
 445                 }
 446                 free(m);
 447
 448                 weston_config_section_get_string(section, "gbm-format",
 449                                                  &gbm_format, NULL);
 450
 451                 weston_config_section_get_string(section, "seat", &seat, "");
 452         }
 453
 454         if (ivi->drm_api->set_mode(output->output, mode, modeline) < 0) {
 455                 weston_log("Cannot configure output using weston_drm_output_api.\n");
 456                 free(modeline);
 457                 return -1;
 458         }
 459         free(modeline);
 460
 461         ivi->drm_api->set_gbm_format(output->output, gbm_format);
 462         free(gbm_format);
 463
 464         ivi->drm_api->set_seat(output->output, seat);
 465         free(seat);
 466
 467         return 0;
 468 }
 469
 470 #define WINDOWED_DEFAULT_WIDTH 1024
 471 #define WINDOWED_DEFAULT_HEIGHT 768
 472
 473 static int
 474 windowed_configure_output(struct ivi_output *output)
 475 {
 476         struct ivi_compositor *ivi = output->ivi;
 477         struct weston_config_section *section = output->config;
 478         int width = WINDOWED_DEFAULT_WIDTH;
 479         int height = WINDOWED_DEFAULT_HEIGHT;
 480
 481         if (section) {
 482                 char *mode;
 483
 484                 weston_config_section_get_string(section, "mode", &mode, NULL);
 485                 if (!mode || sscanf(mode, "%dx%d", &width, &height) != 2) {
 486                         weston_log("Invalid mode for output %s. Using defaults.\n",
 487                                    output->name);
 488                         width = WINDOWED_DEFAULT_WIDTH;
 489                         height = WINDOWED_DEFAULT_HEIGHT;
 490                 }
 491                 free(mode);
 492         }
 493
 494         if (ivi->cmdline.width)
 495                 width = ivi->cmdline.width;
 496         if (ivi->cmdline.height)
 497                 height = ivi->cmdline.height;
 498         if (ivi->cmdline.scale)
 499                 weston_output_set_scale(output->output, ivi->cmdline.scale);
 500
 501         if (ivi->window_api->output_set_size(output->output, width, height) < 0) {
 502                 weston_log("Cannot configure output '%s' using weston_windowed_output_api.\n",
 503                            output->name);
 504                 return -1;
 505         }
 506
 507         weston_log("Configured windowed_output_api to %dx%d\n", width, height);
 508
 509         return 0;
 510 }
 511
 512 static int
 513 parse_transform(const char *transform, uint32_t *out)
 514 {
 515         static const struct { const char *name; uint32_t token; } transforms[] = {
 516                 { "normal",             WL_OUTPUT_TRANSFORM_NORMAL },
 517                 { "rotate-90",          WL_OUTPUT_TRANSFORM_90 },
 518                 { "rotate-180",         WL_OUTPUT_TRANSFORM_180 },
 519                 { "rotate-270",         WL_OUTPUT_TRANSFORM_270 },
 520                 { "flipped",            WL_OUTPUT_TRANSFORM_FLIPPED },
 521                 { "flipped-rotate-90",  WL_OUTPUT_TRANSFORM_FLIPPED_90 },
 522                 { "flipped-rotate-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 },
 523                 { "flipped-rotate-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 },
 524         };
 525
 526         for (size_t i = 0; i < ARRAY_LENGTH(transforms); i++)
 527                 if (strcmp(transforms[i].name, transform) == 0) {
 528                         *out = transforms[i].token;
 529                         return 0;
 530                 }
 531
 532         *out = WL_OUTPUT_TRANSFORM_NORMAL;
 533         return -1;
 534 }
 535
 536 int
 537 parse_activation_area(const char *geometry, struct ivi_output *output)
 538 {
 539         int n;
 540         unsigned width, height, x, y;
 541
 542         n = sscanf(geometry, "%ux%u+%u,%u", &width, &height, &x, &y);
 543         if (n != 4) {
 544                 return -1;
 545         }
 546         output->area_activation.width = width;
 547         output->area_activation.height = height;
 548         output->area_activation.x = x;
 549         output->area_activation.y = y;
 550         return 0;
 551 }
 552
 553 static int
 554 configure_output(struct ivi_output *output)
 555 {
 556         struct ivi_compositor *ivi = output->ivi;
 557         struct weston_config_section *section = output->config;
 558         int32_t scale = 1;
 559         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
 560
 561         /*
 562          * This can happen with the wayland backend with 'sprawl'. The config
 563          * is hard-coded, so we don't need to do anything.
 564          */
 565         if (!ivi->drm_api && !ivi->window_api)
 566                 return 0;
 567
 568         if (section) {
 569                 char *t;
 570
 571                 weston_config_section_get_int(section, "scale", &scale, 1);
 572                 weston_config_section_get_string(section, "transform", &t, "normal");
 573                 if (parse_transform(t, &transform) < 0)
 574                         weston_log("Invalid transform \"%s\" for output %s\n",
 575                                    t, output->name);
 576                 weston_config_section_get_string(section, "activation-area", &t, "");
 577                 if (parse_activation_area(t, output) < 0)
 578                         weston_log("Invalid activation-area \"%s\" for output %s\n",
 579                                    t, output->name);
 580                 free(t);
 581         }
 582
 583         weston_output_set_scale(output->output, scale);
 584         weston_output_set_transform(output->output, transform);
 585
 586         if (ivi->drm_api)
 587                 return drm_configure_output(output);
 588         else
 589                 return windowed_configure_output(output);
 590 }
 591
 592 /*
 593  * Reorgainizes the output's add array into two sections.
 594  * add[0..ret-1] are the heads that failed to get attached.
 595  * add[ret..add_len] are the heads that were successfully attached.
 596  *
 597  * The order between elements in each section is stable.
 598  */
 599 static size_t
 600 try_attach_heads(struct ivi_output *output)
 601 {
 602         size_t fail_len = 0;
 603
 604         for (size_t i = 1; i < output->add_len; i++) {
 605                 if (weston_output_attach_head(output->output, output->add[i]) < 0) {
 606                         struct weston_head *tmp = output->add[i];
 607                         memmove(&output->add[fail_len + 1], output->add[fail_len],
 608                                 sizeof output->add[0] * (i - fail_len));
 609                         output->add[fail_len++] = tmp;
 610                 }
 611         }
 612         return fail_len;
 613 }
 614
 615 /* Place output exactly to the right of the most recently enabled output.
 616  *
 617  * Historically, we haven't given much thought to output placement,
 618  * simply adding outputs in a horizontal line as they're enabled. This
 619  * function simply sets an output's x coordinate to the right of the
 620  * most recently enabled output, and its y to zero.
 621  *
 622  * If you're adding new calls to this function, you're also not giving
 623  * much thought to output placement, so please consider carefully if
 624  * it's really doing what you want.
 625  *
 626  * You especially don't want to use this for any code that won't
 627  * immediately enable the passed output.
 628  */
 629 static void
 630 weston_output_lazy_align(struct weston_output *output)
 631 {
 632         struct weston_compositor *c;
 633         struct weston_output *peer;
 634         int next_x = 0;
 635
 636         /* Put this output to the right of the most recently enabled output */
 637         c = output->compositor;
 638         if (!wl_list_empty(&c->output_list)) {
 639                 peer = container_of(c->output_list.prev,
 640                                 struct weston_output, link);
 641                 next_x = peer->pos.c.x + peer->width;
 642         }
 643         output->pos.c.x = next_x;
 644         output->pos.c.y = 0;
 645 }
 646
 647
 648 /*
 649  * Like try_attach_heads, this reorganizes the output's add array into a failed
 650  * and successful section.
 651  * i is the number of heads that already failed the previous step.
 652  */
 653 static size_t
 654 try_enable_output(struct ivi_output *output, size_t i)
 655 {
 656         for (; i < output->add_len; ++i) {
 657                 struct weston_head *head;
 658
 659                 weston_output_lazy_align(output->output);
 660
 661                 if (weston_output_enable(output->output) == 0)
 662                         break;
 663
 664                 head = output->add[output->add_len - 1];
 665                 memmove(&output->add[i + 1], &output->add[i],
 666                         sizeof output->add[0] * (output->add_len - i));
 667                 output->add[i] = head;
 668
 669                 weston_head_detach(head);
 670         }
 671
 672         return i;
 673 }
 674
 675 static int
 676 try_attach_enable_heads(struct ivi_output *output)
 677 {
 678         size_t fail_len;
 679         assert(!output->output->enabled);
 680
 681         fail_len = try_attach_heads(output);
 682
 683         if (configure_output(output) < 0)
 684                 return -1;
 685
 686         fail_len = try_enable_output(output, fail_len);
 687
 688         /* All heads failed to be attached */
 689         if (fail_len == output->add_len)
 690                 return -1;
 691
 692         /* For each successful head attached */
 693         for (size_t i = fail_len; i < output->add_len; ++i)
 694                 add_head_destroyed_listener(output->add[i]);
 695
 696         ivi_layout_restore(output->ivi, output);
 697
 698         output->add_len = fail_len;
 699         return 0;
 700 }
 701
 702 static int
 703 process_output(struct ivi_output *output)
 704 {
 705         if (output->output->enabled) {
 706                 output->add_len = try_attach_heads(output);
 707                 return output->add_len == 0 ? 0 : -1;
 708         }
 709
 710         return try_attach_enable_heads(output);
 711 }
 712
 713 static void
 714 head_disable(struct ivi_compositor *ivi, struct weston_head *head)
 715 {
 716         struct weston_output *output;
 717         struct ivi_output *ivi_output;
 718         struct wl_listener *listener;
 719
 720         output = weston_head_get_output(head);
 721         assert(output);
 722
 723         listener = weston_output_get_destroy_listener(output,
 724                                                       handle_output_destroy);
 725         assert(listener);
 726
 727         ivi_output = wl_container_of(listener, ivi_output, output_destroy);
 728         assert(ivi_output->output == output);
 729
 730         weston_head_detach(head);
 731         if (count_heads(ivi_output->output) == 0) {
 732                 if (ivi_output->output) {
 733                         /* ivi_output->output destruction may be deferred in
 734                          * some cases (see drm_output_destroy()), so we need to
 735                          * forcibly trigger the destruction callback now, or
 736                          * otherwise would later access data that we are about
 737                          * to free
 738                          */
 739                         struct weston_output *save = ivi_output->output;
 740
 741                         handle_output_destroy(&ivi_output->output_destroy, save);
 742                         weston_output_destroy(save);
 743                 }
 744         }
 745         wl_list_remove(&ivi_output->link);
 746         free(ivi_output->app_ids);
 747         free(ivi_output);
 748 }
 749
 750 static struct weston_config_section *
 751 find_controlling_output_config(struct weston_config *config,
 752                                const char *name)
 753 {
 754         struct weston_config_section *section;
 755         char *same_as;
 756         int depth = 0;
 757
 758         same_as = strdup(name);
 759         do {
 760                 section = weston_config_get_section(config, "output",
 761                                                     "name", same_as);
 762                 if (!section && depth > 0)
 763                         weston_log("Configuration error: output section reffered"
 764                                    "to by same-as=%s not found.\n", same_as);
 765                 free(same_as);
 766
 767                 if (!section)
 768                         return NULL;
 769
 770                 if (depth++ > 8) {
 771                         weston_log("Configuration error: same-as nested too "
 772                                    "deep for output '%s'.\n", name);
 773                         return NULL;
 774                 }
 775
 776                 weston_config_section_get_string(section, "same-as",
 777                                                  &same_as, NULL);
 778         } while (same_as);
 779
 780         return section;
 781 }
 782
 783 static void
 784 head_prepare_enable(struct ivi_compositor *ivi, struct weston_head *head)
 785 {
 786         const char *name = weston_head_get_name(head);
 787         struct weston_config_section *section;
 788         struct ivi_output *output;
 789         char *output_name = NULL;
 790
 791
 792         section = find_controlling_output_config(ivi->config, name);
 793         if (section) {
 794                 char *mode;
 795
 796                 weston_config_section_get_string(section, "mode", &mode, NULL);
 797                 if (mode && strcmp(mode, "off") == 0) {
 798                         free(mode);
 799                         return;
 800                 }
 801                 free(mode);
 802
 803                 weston_config_section_get_string(section, "name",
 804                                                  &output_name, NULL);
 805         } else {
 806                 output_name = strdup(name);
 807         }
 808
 809         if (!output_name)
 810                 return;
 811
 812         output = ivi_ensure_output(ivi, output_name, section, head);
 813         if (!output)
 814                 return;
 815
 816         if (output->add_len >= ARRAY_LENGTH(output->add))
 817                 return;
 818
 819         output->add[output->add_len++] = head;
 820 }
 821
 822 static void
 823 heads_changed(struct wl_listener *listener, void *arg)
 824 {
 825         struct weston_compositor *compositor = arg;
 826         struct weston_head *head = NULL;
 827         struct ivi_compositor *ivi = to_ivi_compositor(compositor);
 828         struct ivi_output *output;
 829
 830         while ((head = weston_compositor_iterate_heads(ivi->compositor, head))) {
 831                 bool connected = weston_head_is_connected(head);
 832                 bool enabled = weston_head_is_enabled(head);
 833                 bool changed = weston_head_is_device_changed(head);
 834                 bool non_desktop = weston_head_is_non_desktop(head);
 835
 836                 if (connected && !enabled && !non_desktop)
 837                         head_prepare_enable(ivi, head);
 838                 else if (!connected && enabled)
 839                         head_disable(ivi, head);
 840                 else if (enabled && changed)
 841                         weston_log("Detected a monitor change on head '%s', "
 842                                    "not bothering to do anything about it.\n",
 843                                    weston_head_get_name(head));
 844
 845                 weston_head_reset_device_changed(head);
 846         }
 847
 848         wl_list_for_each(output, &ivi->outputs, link) {
 849                 if (output->add_len == 0)
 850                         continue;
 851
 852                 if (process_output(output) < 0) {
 853                         output->add_len = 0;
 854                         ivi->init_failed = true;
 855                 }
 856         }
 857 }
 858
 859 #ifdef HAVE_REMOTING
 860 static int
 861 drm_backend_remoted_output_configure(struct weston_output *output,
 862                                      struct weston_config_section *section,
 863                                      char *modeline,
 864                                      const struct weston_remoting_api *api)
 865 {
 866         char *gbm_format = NULL;
 867         char *seat = NULL;
 868         char *host = NULL;
 869         char *pipeline = NULL;
 870         int port, ret;
 871         int32_t scale = 1;
 872         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
 873         char *trans;
 874
 875         ret = api->set_mode(output, modeline);
 876         if (ret < 0) {
 877                 weston_log("Cannot configure an output \"%s\" using "
 878                                 "weston_remoting_api. Invalid mode\n",
 879                                 output->name);
 880                 return -1;
 881         }
 882
 883         weston_config_section_get_int(section, "scale", &scale, 1);
 884         weston_output_set_scale(output, scale);
 885
 886         weston_config_section_get_string(section, "transform", &trans, "normal");
 887         if (parse_transform(trans, &transform) < 0) {
 888                 weston_log("Invalid transform \"%s\" for output %s\n",
 889                            trans, output->name);
 890         }
 891         weston_output_set_transform(output, transform);
 892
 893         weston_config_section_get_string(section, "gbm-format",
 894                                          &gbm_format, NULL);
 895         api->set_gbm_format(output, gbm_format);
 896         free(gbm_format);
 897
 898         weston_config_section_get_string(section, "seat", &seat, "");
 899
 900         api->set_seat(output, seat);
 901         free(seat);
 902
 903         weston_config_section_get_string(section, "gst-pipeline", &pipeline,
 904                         NULL);
 905         if (pipeline) {
 906                 api->set_gst_pipeline(output, pipeline);
 907                 free(pipeline);
 908                 return 0;
 909         }
 910
 911         weston_config_section_get_string(section, "host", &host, NULL);
 912         weston_config_section_get_int(section, "port", &port, 0);
 913         if (!host || port <= 0 || 65533 < port) {
 914                 weston_log("Cannot configure an output \"%s\". "
 915                                 "Need to specify gst-pipeline or "
 916                                 "host and port (1-65533).\n", output->name);
 917         }
 918         api->set_host(output, host);
 919         free(host);
 920         api->set_port(output, port);
 921
 922         return 0;
 923 }
 924
 925
 926 static int
 927 remote_output_init(struct ivi_output *ivi_output,
 928                    struct weston_compositor *compositor,
 929                    struct weston_config_section *section,
 930                    const struct weston_remoting_api *api)
 931 {
 932         char *output_name, *modeline = NULL;
 933         int ret = -1;
 934
 935         weston_config_section_get_string(section, "name", &output_name, NULL);
 936         if (!output_name)
 937                 return ret;
 938
 939         weston_config_section_get_string(section, "mode", &modeline, "off");
 940         if (strcmp(modeline, "off") == 0)
 941                 goto err;
 942
 943         ivi_output->output = api->create_output(compositor, output_name);
 944         if (!ivi_output->output) {
 945                 weston_log("Cannot create remoted output \"%s\".\n",
 946                                 output_name);
 947                 goto err;
 948         }
 949
 950         ret = drm_backend_remoted_output_configure(ivi_output->output, section,
 951                                                    modeline, api);
 952         if (ret < 0) {
 953                 weston_log("Cannot configure remoted output \"%s\".\n",
 954                                 output_name);
 955                 goto err;
 956         }
 957
 958         if ((ret = weston_output_enable(ivi_output->output)) < 0) {
 959                 weston_log("Enabling remoted output \"%s\" failed.\n",
 960                                 output_name);
 961                 goto err;
 962         }
 963
 964         free(modeline);
 965         free(output_name);
 966         weston_log("remoted output '%s' enabled\n", ivi_output->output->name);
 967
 968         return 0;
 969
 970 err:
 971         free(modeline);
 972         free(output_name);
 973         if (ivi_output->output)
 974                 weston_output_destroy(ivi_output->output);
 975
 976         return ret;
 977 }
 978
 979 static void
 980 ivi_enable_remote_outputs(struct ivi_compositor *ivi)
 981 {
 982         struct weston_config_section *remote_section = NULL;
 983         const char *section_name;
 984         struct weston_config *config = ivi->config;
 985
 986         while (weston_config_next_section(config, &remote_section, &section_name)) {
 987                 if (strcmp(section_name, "remote-output"))
 988                         continue;
 989
 990                 struct ivi_output *ivi_output = NULL;
 991                 bool output_found = false;
 992                 char *_name = NULL;
 993
 994                 weston_config_section_get_string(remote_section,
 995                                                  "name", &_name, NULL);
 996                 wl_list_for_each(ivi_output, &ivi->outputs, link) {
 997                         if (!strcmp(ivi_output->name, _name)) {
 998                                 output_found = true;
 999                                 break;
1000                         }
1001                 }
1002
1003                 if (output_found) {
1004                         free(_name);
1005                         continue;
1006                 }
1007
1008                 ivi_output = zalloc(sizeof(*ivi_output));
1009                 if (!ivi_output) {
1010                         free(_name);
1011                         continue;
1012                 }
1013
1014                 ivi_output->ivi = ivi;
1015                 ivi_output->name = _name;
1016                 ivi_output->config = remote_section;
1017                 ivi_output->type = OUTPUT_REMOTE;
1018
1019                 if (remote_output_init(ivi_output, ivi->compositor,
1020                                        remote_section, ivi->remoting_api)) {
1021                         free(ivi_output->name);
1022                         free(ivi_output);
1023                         continue;
1024                 }
1025
1026                 ivi_output->output_destroy.notify = handle_output_destroy;
1027                 weston_output_add_destroy_listener(ivi_output->output,
1028                                                    &ivi_output->output_destroy);
1029
1030                 wl_list_insert(&ivi->outputs, &ivi_output->link);
1031                 ivi_output_configure_app_id(ivi_output);
1032         }
1033 }
1034
1035 static int
1036 load_remoting_plugin(struct ivi_compositor *ivi, struct weston_config *config)
1037 {
1038         struct weston_compositor *compositor = ivi->compositor;
1039         int (*module_init)(struct weston_compositor *wc);
1040
1041         module_init = weston_load_module("remoting-plugin.so",
1042                                          "weston_module_init",
1043                                          LIBWESTON_MODULEDIR);
1044         if (!module_init)
1045                 return -1;
1046
1047         if (module_init(compositor) < 0)
1048                 return -1;
1049
1050         ivi->remoting_api = weston_remoting_get_api(compositor);
1051         if (!ivi->remoting_api)
1052                 return -1;
1053         return 0;
1054 }
1055 #else
1056 static int
1057 load_remoting_plugin(struct weston_compositor *compositor, struct weston_config *config)
1058 {
1059         return -1;
1060 }
1061 #endif
1062
1063 static int
1064 load_drm_backend(struct ivi_compositor *ivi, int *argc, char *argv[],
1065                  enum weston_renderer_type renderer)
1066 {
1067         struct weston_drm_backend_config config = {
1068                 .base = {
1069                         .struct_version = WESTON_DRM_BACKEND_CONFIG_VERSION,
1070                         .struct_size = sizeof config,
1071                 },
1072         };
1073         struct weston_config_section *section;
1074         int use_current_mode = 0;
1075         bool force_pixman = false;
1076         bool use_shadow;
1077         bool without_input = false;
1078
1079         const struct weston_option options[] = {
1080                 { WESTON_OPTION_STRING, "seat", 0, &config.seat_id },
1081                 { WESTON_OPTION_STRING, "drm-device", 0, &config.specific_device },
1082                 { WESTON_OPTION_BOOLEAN, "current-mode", 0, &use_current_mode },
1083                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &force_pixman },
1084                 { WESTON_OPTION_BOOLEAN, "continue-without-input", false, &without_input }
1085         };
1086
1087         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1088
1089         if (force_pixman)
1090                 config.renderer = WESTON_RENDERER_PIXMAN;
1091         else
1092                 config.renderer = WESTON_RENDERER_AUTO;
1093
1094         ivi->cmdline.use_current_mode = use_current_mode;
1095
1096         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
1097         weston_config_section_get_string(section, "gbm-format",
1098                                          &config.gbm_format, NULL);
1099         weston_config_section_get_uint(section, "pageflip-timeout",
1100                                        &config.pageflip_timeout, 0);
1101         weston_config_section_get_bool(section, "pixman-shadow", &use_shadow, 1);
1102         config.use_pixman_shadow = use_shadow;
1103
1104         if (without_input)
1105                 ivi->compositor->require_input = !without_input;
1106
1107         ivi->heads_changed.notify = heads_changed;
1108         weston_compositor_add_heads_changed_listener(ivi->compositor,
1109                                                      &ivi->heads_changed);
1110
1111         if (!weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_DRM,
1112                                             &config.base))
1113                 return -1;
1114
1115         ivi->drm_api = weston_drm_output_get_api(ivi->compositor);
1116         if (!ivi->drm_api) {
1117                 weston_log("Cannot use drm output api.\n");
1118                 goto error;
1119         }
1120
1121         load_remoting_plugin(ivi, ivi->config);
1122
1123         return 0;
1124
1125 error:
1126         free(config.gbm_format);
1127         free(config.seat_id);
1128         return -1;
1129 }
1130
1131 static void
1132 windowed_parse_common_options(struct ivi_compositor *ivi, int *argc, char *argv[],
1133                               bool *force_pixman, bool *fullscreen, int *output_count)
1134 {
1135         struct weston_config_section *section;
1136         bool pixman;
1137         int fs = 0;
1138
1139         const struct weston_option options[] = {
1140                 { WESTON_OPTION_INTEGER, "width", 0, &ivi->cmdline.width },
1141                 { WESTON_OPTION_INTEGER, "height", 0, &ivi->cmdline.height },
1142                 { WESTON_OPTION_INTEGER, "scale", 0, &ivi->cmdline.scale },
1143                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &force_pixman },
1144                 { WESTON_OPTION_BOOLEAN, "fullscreen", 0, &fs },
1145                 { WESTON_OPTION_INTEGER, "output-count", 0, output_count },
1146         };
1147
1148         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
1149         weston_config_section_get_bool(section, "use-pixman", &pixman, false);
1150
1151         *output_count = 1;
1152         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1153         *force_pixman = pixman;
1154         *fullscreen = fs;
1155 }
1156
1157 static int
1158 windowed_create_outputs(struct ivi_compositor *ivi, int output_count,
1159                         const char *match_prefix, const char *name_prefix)
1160 {
1161         struct weston_config_section *section = NULL;
1162         const char *section_name;
1163         char *default_output = NULL;
1164         int i = 0;
1165         size_t match_len = strlen(match_prefix);
1166
1167         while (weston_config_next_section(ivi->config, &section, &section_name)) {
1168                 char *output_name;
1169
1170                 if (i >= output_count)
1171                         break;
1172
1173                 if (strcmp(section_name, "output") != 0)
1174                         continue;
1175
1176                 weston_config_section_get_string(section, "name", &output_name, NULL);
1177                 if (output_name == NULL)
1178                         continue;
1179                 if (strncmp(output_name, match_prefix, match_len) != 0) {
1180                         free(output_name);
1181                         continue;
1182                 }
1183
1184                 if (ivi->window_api->create_head(ivi->backend, output_name) < 0) {
1185                         free(output_name);
1186                         return -1;
1187                 }
1188
1189                 free(output_name);
1190                 ++i;
1191         }
1192
1193         for (; i < output_count; ++i) {
1194                 if (asprintf(&default_output, "%s%d", name_prefix, i) < 0)
1195                         return -1;
1196
1197                 if (ivi->window_api->create_head(ivi->backend, default_output) < 0) {
1198                         free(default_output);
1199                         return -1;
1200                 }
1201
1202                 free(default_output);
1203         }
1204
1205         return 0;
1206 }
1207
1208 static int
1209 load_wayland_backend(struct ivi_compositor *ivi, int *argc, char *argv[],
1210                      enum weston_renderer_type renderer)
1211 {
1212         struct weston_wayland_backend_config config = {
1213                 .base = {
1214                         .struct_version = WESTON_WAYLAND_BACKEND_CONFIG_VERSION,
1215                         .struct_size = sizeof config,
1216                 },
1217         };
1218         struct weston_config_section *section;
1219         int sprawl = 0;
1220         int output_count;
1221         bool force_pixman = false;
1222
1223         const struct weston_option options[] = {
1224                 { WESTON_OPTION_STRING, "display", 0, &config.display_name },
1225                 { WESTON_OPTION_STRING, "sprawl", 0, &sprawl },
1226         };
1227
1228         windowed_parse_common_options(ivi, argc, argv, &force_pixman,
1229                                       &config.fullscreen, &output_count);
1230
1231         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1232         config.sprawl = sprawl;
1233
1234         section = weston_config_get_section(ivi->config, "shell", NULL, NULL);
1235         weston_config_section_get_string(section, "cursor-theme",
1236                                          &config.cursor_theme, NULL);
1237         weston_config_section_get_int(section, "cursor-size",
1238                                       &config.cursor_size, 32);
1239
1240         ivi->backend = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_WAYLAND,
1241                                                       &config.base);
1242
1243         free(config.cursor_theme);
1244         free(config.display_name);
1245
1246         if (!ivi->backend)
1247                 return -1;
1248
1249         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
1250
1251         /*
1252          * We will just assume if load_backend() finished cleanly and
1253          * windowed_output_api is not present that wayland backend is started
1254          * with --sprawl or runs on fullscreen-shell. In this case, all values
1255          * are hardcoded, so nothing can be configured; simply create and
1256          * enable an output.
1257          */
1258         if (ivi->window_api == NULL)
1259                 return 0;
1260
1261         return windowed_create_outputs(ivi, output_count, "WL", "wayland");
1262 }
1263
1264 #ifdef HAVE_BACKEND_X11
1265 static int
1266 load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[],
1267                  enum weston_renderer_type renderer)
1268 {
1269         struct weston_x11_backend_config config = {
1270                 .base = {
1271                         .struct_version = WESTON_X11_BACKEND_CONFIG_VERSION,
1272                         .struct_size = sizeof config,
1273                 },
1274         };
1275         int no_input = 0;
1276         int output_count;
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         if (!weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_X11, &config.base))
1294                 return -1;
1295
1296         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
1297         if (!ivi->window_api) {
1298                 weston_log("Cannot use weston_windowed_output_api.\n");
1299                 return -1;
1300         }
1301
1302         return windowed_create_outputs(ivi, output_count, "X", "screen");
1303 }
1304 #else
1305 static int
1306 load_x11_backend(struct ivi_compositor *ivi, int *argc, char **argv,
1307                  enum weston_renderer_type renderer)
1308 {
1309         return -1;
1310 }
1311 #endif
1312
1313 #ifdef HAVE_BACKEND_HEADLESS
1314 static int
1315 load_headless_backend(struct ivi_compositor *ivi, int *argc, char **argv,
1316                       enum weston_renderer_type renderer)
1317 {
1318         struct weston_headless_backend_config config = {};
1319
1320         bool force_pixman = false;
1321         bool fullscreen;
1322         bool force_gl = false;
1323         int output_count;
1324
1325         struct weston_compositor *c = ivi->compositor;
1326         struct weston_backend *wb = NULL;
1327
1328         const struct weston_option options[] = {
1329                 { WESTON_OPTION_BOOLEAN, "use-pixman", false, &force_pixman },
1330                 { WESTON_OPTION_BOOLEAN, "use-gl", false, &force_gl },
1331         };
1332
1333         windowed_parse_common_options(ivi, argc, argv, &force_pixman,
1334                         &fullscreen, &output_count);
1335
1336         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1337
1338         if ((force_pixman && force_gl) ||
1339             (renderer != WESTON_RENDERER_AUTO && (force_pixman || force_gl))) {
1340                 weston_log("Conflicting renderer specifications\n");
1341                 return -1;
1342         } else if (force_pixman) {
1343                 config.renderer = WESTON_RENDERER_PIXMAN;
1344         } else if (force_gl) {
1345                 config.renderer = WESTON_RENDERER_GL;
1346         } else {
1347                 config.renderer = renderer;
1348         }
1349
1350         config.base.struct_version = WESTON_HEADLESS_BACKEND_CONFIG_VERSION;
1351         config.base.struct_size = sizeof(struct weston_headless_backend_config);
1352
1353         /* load the actual headless-backend and configure it */
1354         if (!weston_compositor_load_backend(c, WESTON_BACKEND_HEADLESS, &config.base))
1355                 return -1;
1356
1357         ivi->window_api = weston_windowed_output_get_api(c);
1358         if (!ivi->window_api) {
1359                 weston_log("Cannot use weston_windowed_output_api.\n");
1360                 return -1;
1361         }
1362
1363         wb = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_HEADLESS, &config.base);
1364         if (!wb)
1365                 return -1;
1366
1367         if (ivi->window_api->create_head(wb, "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         struct weston_mode new_mode = {};
1412
1413         assert(parsed_options);
1414
1415         if (!api) {
1416                 weston_log("Cannot use weston_rdp_output_api.\n");
1417                 return -1;
1418         }
1419
1420         section = weston_config_get_section(ivi->config, "rdp", NULL, NULL);
1421
1422         if (parsed_options->width)
1423                 width = parsed_options->width;
1424
1425         if (parsed_options->height)
1426                 height = parsed_options->height;
1427
1428         weston_output_set_scale(output, 1);
1429
1430         weston_config_section_get_int(section, "width",
1431                         &width, width);
1432
1433         weston_config_section_get_int(section, "height",
1434                         &height, height);
1435
1436         if (parsed_options->transform)
1437                 transform = parsed_options->transform;
1438
1439         weston_config_section_get_string(section, "transform",
1440                         &transform_string, "normal");
1441
1442         if (parse_transform(transform_string, &transform) < 0) {
1443                 weston_log("Invalid transform \"%s\" for output %s\n",
1444                            transform_string, output->name);
1445                 return -1;
1446         }
1447
1448
1449         new_mode.width = width;
1450         new_mode.height = height;
1451
1452         api->output_set_mode(output, &new_mode);
1453         weston_output_set_transform(output, transform);
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         struct weston_config_section *section;
1463
1464         struct ivi_output_config *parsed_options = ivi_init_parsed_options(ivi->compositor);
1465         if (!parsed_options)
1466                 return -1;
1467
1468         weston_rdp_backend_config_init(&config);
1469
1470         const struct weston_option rdp_options[] = {
1471                 { WESTON_OPTION_BOOLEAN, "env-socket", 0, &config.env_socket },
1472                 { WESTON_OPTION_INTEGER, "width", 0, &parsed_options->width },
1473                 { WESTON_OPTION_INTEGER, "height", 0, &parsed_options->height },
1474                 { WESTON_OPTION_INTEGER, "transform", 0, &parsed_options->transform },
1475                 { WESTON_OPTION_INTEGER, "scale", 0, &parsed_options->scale },
1476                 { WESTON_OPTION_STRING,  "address", 0, &config.bind_address },
1477                 { WESTON_OPTION_INTEGER, "port", 0, &config.port },
1478                 { WESTON_OPTION_BOOLEAN, "no-clients-resize", 0, &config.no_clients_resize },
1479                 { WESTON_OPTION_STRING,  "rdp4-key", 0, &config.rdp_key },
1480                 { WESTON_OPTION_STRING,  "rdp-tls-cert", 0, &config.server_cert },
1481                 { WESTON_OPTION_STRING,  "rdp-tls-key", 0, &config.server_key },
1482                 { WESTON_OPTION_BOOLEAN, "force-no-compression", 0, &config.force_no_compression },
1483         };
1484
1485         section = weston_config_get_section(ivi->config, "rdp", NULL, NULL);
1486
1487         weston_config_section_get_string(section, "tls-cert",
1488                         &config.server_cert, config.server_cert);
1489
1490         weston_config_section_get_string(section, "tls-key",
1491                         &config.server_key, config.server_key);
1492
1493
1494         parse_options(rdp_options, ARRAY_LENGTH(rdp_options), argc, argv);
1495
1496         ivi->simple_output_configure = rdp_backend_output_configure;
1497         if (!weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_RDP, &config.base))
1498                 return -1;
1499
1500         free(config.bind_address);
1501         free(config.rdp_key);
1502         free(config.server_cert);
1503         free(config.server_key);
1504
1505         return 0;
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
1533         switch (backend) {
1534         case WESTON_BACKEND_DRM:
1535                 return load_drm_backend(ivi, argc, argv, renderer);
1536         case WESTON_BACKEND_HEADLESS:
1537                 return load_headless_backend(ivi, argc, argv, renderer);
1538         case WESTON_BACKEND_RDP:
1539                 return load_rdp_backend(ivi, argc, argv);
1540         case WESTON_BACKEND_WAYLAND:
1541                 return load_wayland_backend(ivi, argc, argv, renderer);
1542         case WESTON_BACKEND_X11:
1543                 return load_x11_backend(ivi, argc, argv, renderer);
1544         default:
1545                 assert(!"unknown backend type in load_backend()");
1546         }
1547
1548         return 0;
1549 }
1550
1551 static int
1552 load_modules(struct ivi_compositor *ivi, const char *modules,
1553              int *argc, char *argv[], bool *xwayland)
1554 {
1555         const char *p, *end;
1556         char buffer[256];
1557         int (*module_init)(struct weston_compositor *wc, int argc, char *argv[]);
1558
1559         if (modules == NULL)
1560                 return 0;
1561
1562         p = modules;
1563         while (*p) {
1564                 end = strchrnul(p, ',');
1565                 snprintf(buffer, sizeof buffer, "%.*s", (int) (end - p), p);
1566
1567                 if (strstr(buffer, "xwayland.so")) {
1568                         *xwayland = true;
1569                 } else if (strstr(buffer, "systemd-notify.so")) {
1570                         weston_log("systemd-notify plug-in already loaded!\n");
1571                 } else {
1572                         module_init = weston_load_module(buffer, "wet_module_init", WESTON_MODULEDIR);
1573                         if (!module_init)
1574                                 return -1;
1575
1576                         if (module_init(ivi->compositor, *argc, argv) < 0)
1577                                 return -1;
1578
1579                 }
1580
1581                 p = end;
1582                 while (*p == ',')
1583                         p++;
1584         }
1585
1586         return 0;
1587 }
1588
1589
1590 static char *
1591 choose_default_backend(void)
1592 {
1593         char *backend = NULL;
1594
1595         if (getenv("WAYLAND_DISPLAY") || getenv("WAYLAND_SOCKET"))
1596                 backend = strdup("wayland-backend.so");
1597         else if (getenv("DISPLAY"))
1598                 backend = strdup("x11-backend.so");
1599         else
1600                 backend = strdup("drm-backend.so");
1601
1602         return backend;
1603 }
1604
1605 static int
1606 compositor_init_config(struct ivi_compositor *ivi)
1607 {
1608         struct xkb_rule_names xkb_names;
1609         struct weston_config_section *section;
1610         struct weston_compositor *compositor = ivi->compositor;
1611         struct weston_config *config = ivi->config;
1612         int repaint_msec;
1613         bool vt_switching;
1614         bool require_input;
1615
1616         /* agl-compositor.ini [keyboard] */
1617         section = weston_config_get_section(config, "keyboard", NULL, NULL);
1618         weston_config_section_get_string(section, "keymap_rules",
1619                                          (char **) &xkb_names.rules, NULL);
1620         weston_config_section_get_string(section, "keymap_model",
1621                                          (char **) &xkb_names.model, NULL);
1622         weston_config_section_get_string(section, "keymap_layout",
1623                                          (char **) &xkb_names.layout, NULL);
1624         weston_config_section_get_string(section, "keymap_variant",
1625                                          (char **) &xkb_names.variant, NULL);
1626         weston_config_section_get_string(section, "keymap_options",
1627                                          (char **) &xkb_names.options, NULL);
1628
1629         if (weston_compositor_set_xkb_rule_names(compositor, &xkb_names) < 0)
1630                 return -1;
1631
1632         weston_config_section_get_int(section, "repeat-rate",
1633                                       &compositor->kb_repeat_rate, 40);
1634         weston_config_section_get_int(section, "repeat-delay",
1635                                       &compositor->kb_repeat_delay, 400);
1636
1637         weston_config_section_get_bool(section, "vt-switching",
1638                                        &vt_switching, false);
1639         compositor->vt_switching = vt_switching;
1640
1641         /* agl-compositor.ini [core] */
1642         section = weston_config_get_section(config, "core", NULL, NULL);
1643
1644         weston_config_section_get_bool(section, "disable-cursor",
1645                                        &ivi->disable_cursor, false);
1646         weston_config_section_get_bool(section, "activate-by-default",
1647                                        &ivi->activate_by_default, true);
1648
1649         weston_config_section_get_bool(section, "require-input", &require_input, true);
1650         compositor->require_input = require_input;
1651
1652         weston_config_section_get_int(section, "repaint-window", &repaint_msec,
1653                                       compositor->repaint_msec);
1654         if (repaint_msec < -10 || repaint_msec > 1000) {
1655                 weston_log("Invalid repaint_window value in config: %d\n",
1656                            repaint_msec);
1657         } else {
1658                 compositor->repaint_msec = repaint_msec;
1659         }
1660         weston_log("Output repaint window is %d ms maximum.\n",
1661                    compositor->repaint_msec);
1662
1663         return 0;
1664 }
1665
1666 struct ivi_surface *
1667 to_ivi_surface(struct weston_surface *surface)
1668 {
1669         struct weston_desktop_surface *dsurface;
1670
1671         dsurface = weston_surface_get_desktop_surface(surface);
1672         if (!dsurface)
1673                 return NULL;
1674
1675         return weston_desktop_surface_get_user_data(dsurface);
1676 }
1677
1678 static void
1679 activate_binding(struct weston_seat *seat,
1680                  struct weston_view *focus_view, uint32_t flags)
1681 {
1682         struct weston_surface *focus_surface;
1683         struct weston_surface *main_surface;
1684         struct ivi_surface *ivi_surface;
1685         struct ivi_shell_seat *ivi_seat = get_ivi_shell_seat(seat);
1686
1687         if (!focus_view)
1688                 return;
1689
1690         focus_surface = focus_view->surface;
1691         main_surface = weston_surface_get_main_surface(focus_surface);
1692
1693         ivi_surface = to_ivi_surface(main_surface);
1694         if (!ivi_surface)
1695                 return;
1696
1697         if (ivi_seat)
1698                 ivi_shell_activate_surface(ivi_surface, ivi_seat, flags);
1699 }
1700
1701 static void
1702 click_to_activate_binding(struct weston_pointer *pointer,
1703                           const struct timespec *time,
1704                           uint32_t button, void *data)
1705 {
1706         if (pointer->grab != &pointer->default_grab)
1707                 return;
1708         if (pointer->focus == NULL)
1709                 return;
1710
1711         activate_binding(pointer->seat, pointer->focus,
1712                          WESTON_ACTIVATE_FLAG_CLICKED);
1713 }
1714
1715 static void
1716 touch_to_activate_binding(struct weston_touch *touch,
1717                           const struct timespec *time,
1718                           void *data)
1719 {
1720         if (touch->grab != &touch->default_grab)
1721                 return;
1722         if (touch->focus == NULL)
1723                 return;
1724
1725         activate_binding(touch->seat, touch->focus,
1726                          WESTON_ACTIVATE_FLAG_NONE);
1727 }
1728
1729 static void
1730 add_bindings(struct weston_compositor *compositor)
1731 {
1732         weston_compositor_add_button_binding(compositor, BTN_LEFT, 0,
1733                                              click_to_activate_binding,
1734                                              NULL);
1735         weston_compositor_add_button_binding(compositor, BTN_RIGHT, 0,
1736                                              click_to_activate_binding,
1737                                              NULL);
1738         weston_compositor_add_touch_binding(compositor, 0,
1739                                             touch_to_activate_binding,
1740                                             NULL);
1741 }
1742
1743 static int
1744 create_listening_socket(struct wl_display *display, const char *socket_name)
1745 {
1746         if (socket_name) {
1747                 if (wl_display_add_socket(display, socket_name)) {
1748                         weston_log("fatal: failed to add socket: %s\n",
1749                                    strerror(errno));
1750                         return -1;
1751                 }
1752         } else {
1753                 socket_name = wl_display_add_socket_auto(display);
1754                 if (!socket_name) {
1755                         weston_log("fatal: failed to add socket: %s\n",
1756                                    strerror(errno));
1757                         return -1;
1758                 }
1759         }
1760
1761         setenv("WAYLAND_DISPLAY", socket_name, 1);
1762
1763         return 0;
1764 }
1765
1766 static bool
1767 global_filter(const struct wl_client *client, const struct wl_global *global,
1768               void *data)
1769 {
1770         return true;
1771 }
1772
1773 static int
1774 load_config(struct weston_config **config, bool no_config,
1775             const char *config_file)
1776 {
1777         const char *file = "agl-compositor.ini";
1778         const char *full_path;
1779
1780         if (config_file)
1781                 file = config_file;
1782
1783         if (!no_config)
1784                 *config = weston_config_parse(file);
1785
1786         if (*config) {
1787                 full_path = weston_config_get_full_path(*config);
1788
1789                 weston_log("Using config file '%s'.\n", full_path);
1790                 setenv(WESTON_CONFIG_FILE_ENV_VAR, full_path, 1);
1791
1792                 return 0;
1793         }
1794
1795         if (config_file && !no_config) {
1796                 weston_log("fatal: error opening or reading config file '%s'.\n",
1797                         config_file);
1798
1799                 return -1;
1800         }
1801
1802         weston_log("Starting with no config file.\n");
1803         setenv(WESTON_CONFIG_FILE_ENV_VAR, "", 1);
1804
1805         return 0;
1806 }
1807
1808 static FILE *logfile;
1809
1810 static char *
1811 log_timestamp(char *buf, size_t len)
1812 {
1813         struct timeval tv;
1814         struct tm *brokendown_time;
1815         char datestr[128];
1816         char timestr[128];
1817
1818         gettimeofday(&tv, NULL);
1819
1820         brokendown_time = localtime(&tv.tv_sec);
1821         if (brokendown_time == NULL) {
1822                 snprintf(buf, len, "%s", "[(NULL)localtime] ");
1823                 return buf;
1824         }
1825
1826         memset(datestr, 0, sizeof(datestr));
1827         if (brokendown_time->tm_mday != cached_tm_mday) {
1828                 strftime(datestr, sizeof(datestr), "Date: %Y-%m-%d %Z\n",
1829                                 brokendown_time);
1830                 cached_tm_mday = brokendown_time->tm_mday;
1831         }
1832
1833         strftime(timestr, sizeof(timestr), "%H:%M:%S", brokendown_time);
1834         /* if datestr is empty it prints only timestr*/
1835         snprintf(buf, len, "%s[%s.%03li]", datestr,
1836                         timestr, (tv.tv_usec / 1000));
1837
1838         return buf;
1839 }
1840
1841 static void
1842 custom_handler(const char *fmt, va_list arg)
1843 {
1844         char timestr[512];
1845
1846         weston_log_scope_printf(log_scope, "%s libwayland: ",
1847                         log_timestamp(timestr, sizeof(timestr)));
1848         weston_log_scope_vprintf(log_scope, fmt, arg);
1849 }
1850
1851 static void
1852 log_file_open(const char *filename)
1853 {
1854         wl_log_set_handler_server(custom_handler);
1855
1856         if (filename)
1857                 logfile = fopen(filename, "a");
1858
1859         if (!logfile) {
1860                 logfile = stderr;
1861         } else {
1862                 os_fd_set_cloexec(fileno(logfile));
1863                 setvbuf(logfile, NULL, _IOLBF, 256);
1864         }
1865 }
1866
1867 static void
1868 log_file_close(void)
1869 {
1870         if (logfile && logfile != stderr)
1871                 fclose(logfile);
1872         logfile = stderr;
1873 }
1874
1875 static int
1876 vlog(const char *fmt, va_list ap)
1877 {
1878         const char *oom = "Out of memory";
1879         char timestr[128];
1880         int len = 0;
1881         char *str;
1882
1883         if (weston_log_scope_is_enabled(log_scope)) {
1884                 int len_va;
1885                 char *xlog_timestamp = log_timestamp(timestr, sizeof(timestr));
1886                 len_va = vasprintf(&str, fmt, ap);
1887                 if (len_va >= 0) {
1888                         len = weston_log_scope_printf(log_scope, "%s %s",
1889                                         xlog_timestamp, str);
1890                         free(str);
1891                 } else {
1892                         len = weston_log_scope_printf(log_scope, "%s %s",
1893                                         xlog_timestamp, oom);
1894                 }
1895         }
1896
1897         return len;
1898 }
1899
1900
1901 static int
1902 vlog_continue(const char *fmt, va_list ap)
1903 {
1904         return weston_log_scope_vprintf(log_scope, fmt, ap);
1905 }
1906
1907 static int
1908 on_term_signal(int signo, void *data)
1909 {
1910         struct wl_display *display = data;
1911
1912         weston_log("caught signal %d\n", signo);
1913         wl_display_terminate(display);
1914
1915         return 1;
1916 }
1917
1918 static void
1919 handle_exit(struct weston_compositor *compositor)
1920 {
1921         wl_display_terminate(compositor->wl_display);
1922 }
1923
1924 static void
1925 usage(int error_code)
1926 {
1927         FILE *out = error_code == EXIT_SUCCESS ? stdout : stderr;
1928         fprintf(out,
1929                 "Usage: agl-compositor [OPTIONS]\n"
1930                 "\n"
1931                 "This is " PACKAGE_STRING ", the reference compositor for\n"
1932                 "Automotive Grade Linux. " PACKAGE_STRING " supports multiple "
1933                 "backends,\nand depending on which backend is in use different "
1934                 "options will be accepted.\n"
1935                 "\n"
1936                 "Core options:\n"
1937                 "\n"
1938                 "  --version\t\tPrint agl-compositor version\n"
1939                 "  -B, --backend=MODULE\tBackend module, one of\n"
1940                         "\t\t\t\tdrm-backend.so\n"
1941                         "\t\t\t\twayland-backend.so\n"
1942                         "\t\t\t\tx11-backend.so\n"
1943                         "\t\t\t\theadless-backend.so\n"
1944                 "  -r, --renderer=NAME\tName of renderer to use: auto, gl, noop, pixman\n"
1945                 "  -S, --socket=NAME\tName of socket to listen on\n"
1946                 "  --log=FILE\t\tLog to the given file\n"
1947                 "  -c, --config=FILE\tConfig file to load, defaults to agl-compositor.ini\n"
1948                 "  --no-config\t\tDo not read agl-compositor.ini\n"
1949                 "  --debug\t\tEnable debug extension(s)\n"
1950                 "  -h, --help\t\tThis help message\n"
1951                 "\n");
1952         exit(error_code);
1953 }
1954
1955 static char *
1956 copy_command_line(int argc, char * const argv[])
1957 {
1958         FILE *fp;
1959         char *str = NULL;
1960         size_t size = 0;
1961         int i;
1962
1963         fp = open_memstream(&str, &size);
1964         if (!fp)
1965                 return NULL;
1966
1967         fprintf(fp, "%s", argv[0]);
1968         for (i = 1; i < argc; i++)
1969                 fprintf(fp, " %s", argv[i]);
1970         fclose(fp);
1971
1972         return str;
1973 }
1974
1975 #if !defined(BUILD_XWAYLAND)
1976 void *
1977 wet_load_xwayland(struct weston_compositor *comp)
1978 {
1979         weston_log("Attempted to load xwayland library but compositor "
1980                    "was *not* built with xwayland support!\n");
1981         return NULL;
1982 }
1983 #endif
1984
1985 static void
1986 weston_log_setup_scopes(struct weston_log_context *log_ctx,
1987                         struct weston_log_subscriber *subscriber,
1988                         const char *names)
1989 {
1990         assert(log_ctx);
1991         assert(subscriber);
1992
1993         char *tokenize = strdup(names);
1994         char *token = strtok(tokenize, ",");
1995         while (token) {
1996                 weston_log_subscribe(log_ctx, subscriber, token);
1997                 token = strtok(NULL, ",");
1998         }
1999         free(tokenize);
2000 }
2001
2002 static void
2003 weston_log_subscribe_to_scopes(struct weston_log_context *log_ctx,
2004                                struct weston_log_subscriber *logger,
2005                                const char *debug_scopes)
2006 {
2007         if (logger && debug_scopes)
2008                 weston_log_setup_scopes(log_ctx, logger, debug_scopes);
2009         else
2010                 weston_log_subscribe(log_ctx, logger, "log");
2011 }
2012
2013 WL_EXPORT
2014 int wet_main(int argc, char *argv[], const struct weston_testsuite_data *test_data)
2015 {
2016         struct ivi_compositor ivi = { 0 };
2017         char *cmdline;
2018         struct wl_display *display = NULL;
2019         struct wl_event_loop *loop;
2020         struct wl_event_source *signals[3] = { 0 };
2021         struct weston_config_section *section;
2022         /* Command line options */
2023         char *backend = NULL;
2024         char *socket_name = NULL;
2025         char *log = NULL;
2026         char *modules = NULL;
2027         char *option_modules = NULL;
2028         char *debug_scopes = NULL;
2029         int help = 0;
2030         int version = 0;
2031         int no_config = 0;
2032         int debug = 0;
2033         bool list_debug_scopes = false;
2034         char *config_file = NULL;
2035         struct weston_log_context *log_ctx = NULL;
2036         struct weston_log_subscriber *logger;
2037         int ret = EXIT_FAILURE;
2038         bool xwayland = false;
2039         struct sigaction action;
2040         char *renderer = NULL;
2041
2042         const struct weston_option core_options[] = {
2043                 { WESTON_OPTION_STRING, "renderer", 'r', &renderer },
2044                 { WESTON_OPTION_STRING, "backend", 'B', &backend },
2045                 { WESTON_OPTION_STRING, "socket", 'S', &socket_name },
2046                 { WESTON_OPTION_STRING, "log", 0, &log },
2047                 { WESTON_OPTION_BOOLEAN, "help", 'h', &help },
2048                 { WESTON_OPTION_BOOLEAN, "version", 0, &version },
2049                 { WESTON_OPTION_BOOLEAN, "no-config", 0, &no_config },
2050                 { WESTON_OPTION_BOOLEAN, "debug", 0, &debug },
2051                 { WESTON_OPTION_STRING, "config", 'c', &config_file },
2052                 { WESTON_OPTION_STRING, "modules", 0, &option_modules },
2053                 { WESTON_OPTION_STRING, "debug-scopes", 'l', &debug_scopes },
2054                 { WESTON_OPTION_STRING, "list-debug-scopes", 'L', &list_debug_scopes },
2055         };
2056
2057         wl_list_init(&ivi.outputs);
2058         wl_list_init(&ivi.saved_outputs);
2059         wl_list_init(&ivi.surfaces);
2060         wl_list_init(&ivi.pending_surfaces);
2061         wl_list_init(&ivi.popup_pending_apps);
2062         wl_list_init(&ivi.fullscreen_pending_apps);
2063         wl_list_init(&ivi.split_pending_apps);
2064         wl_list_init(&ivi.remote_pending_apps);
2065         wl_list_init(&ivi.desktop_clients);
2066         wl_list_init(&ivi.child_process_list);
2067         wl_list_init(&ivi.pending_apps);
2068
2069         /* Prevent any clients we spawn getting our stdin */
2070         os_fd_set_cloexec(STDIN_FILENO);
2071
2072         cmdline = copy_command_line(argc, argv);
2073         parse_options(core_options, ARRAY_LENGTH(core_options), &argc, argv);
2074
2075         if (help)
2076                 usage(EXIT_SUCCESS);
2077
2078         if (version) {
2079                 printf(PACKAGE_STRING "\n");
2080                 ret = EXIT_SUCCESS;
2081                 goto exit_signals;
2082         }
2083
2084         log_ctx = weston_log_ctx_create();
2085         if (!log_ctx) {
2086                 fprintf(stderr, "Failed to initialize weston debug framework.\n");
2087                 goto exit_signals;
2088         }
2089
2090         log_scope = weston_log_ctx_add_log_scope(log_ctx, "log",
2091                                                  "agl-compositor log\n",
2092                                                  NULL, NULL, NULL);
2093
2094         log_file_open(log);
2095         weston_log_set_handler(vlog, vlog_continue);
2096
2097         logger = weston_log_subscriber_create_log(logfile);
2098         weston_log_subscribe_to_scopes(log_ctx, logger, debug_scopes);
2099
2100         weston_log("Command line: %s\n", cmdline);
2101         free(cmdline);
2102
2103         if (load_config(&ivi.config, no_config, config_file) < 0)
2104                 goto error_signals;
2105         section = weston_config_get_section(ivi.config, "core", NULL, NULL);
2106         if (!backend) {
2107                 weston_config_section_get_string(section, "backend", &backend,
2108                                                  NULL);
2109                 if (!backend)
2110                         backend = choose_default_backend();
2111         }
2112
2113         display = wl_display_create();
2114         loop = wl_display_get_event_loop(display);
2115
2116         wl_display_set_global_filter(display,
2117                                      global_filter, &ivi);
2118
2119         /* Register signal handlers so we shut down cleanly */
2120
2121         signals[0] = wl_event_loop_add_signal(loop, SIGTERM, on_term_signal,
2122                                               display);
2123         signals[1] = wl_event_loop_add_signal(loop, SIGUSR2, on_term_signal,
2124                                               display);
2125         signals[2] = wl_event_loop_add_signal(loop, SIGCHLD, sigchld_handler,
2126                                               display);
2127
2128         /* When debugging the compositor, if use wl_event_loop_add_signal() to
2129          * catch SIGINT, the debugger can't catch it, and attempting to stop
2130          * the compositor from within the debugger results in weston exiting
2131          * cleanly.
2132          *
2133          * Instead, use the sigaction() function, which sets up the signal in a
2134          * way that gdb can successfully catch, but have the handler for SIGINT
2135          * send SIGUSR2 (xwayland uses SIGUSR1), which we catch via
2136          * wl_event_loop_add_signal().
2137          */
2138         action.sa_handler = sigint_helper;
2139         sigemptyset(&action.sa_mask);
2140         action.sa_flags = 0;
2141         sigaction(SIGINT, &action, NULL);
2142
2143         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
2144                 if (!signals[i])
2145                         goto error_signals;
2146
2147         ivi.compositor = weston_compositor_create(display, log_ctx, &ivi, test_data);
2148         if (!ivi.compositor) {
2149                 weston_log("fatal: failed to create compositor.\n");
2150                 goto error_signals;
2151         }
2152
2153         if (compositor_init_config(&ivi) < 0)
2154                 goto error_compositor;
2155
2156         if (load_backend(&ivi, &argc, argv, backend, renderer) < 0) {
2157                 weston_log("fatal: failed to create compositor backend.\n");
2158                 goto error_compositor;
2159         }
2160
2161         if (weston_compositor_backends_loaded(ivi.compositor) < 0)
2162                 goto error_compositor;
2163
2164         weston_compositor_flush_heads_changed(ivi.compositor);
2165
2166         if (ivi_desktop_init(&ivi) < 0)
2167                 goto error_compositor;
2168
2169         ivi_seat_init(&ivi);
2170
2171         /* load additional modules */
2172         weston_config_section_get_string(section, "modules", &modules, "");
2173         if (load_modules(&ivi, modules, &argc, argv, &xwayland) < 0)
2174                 goto error_compositor;
2175
2176         if (load_modules(&ivi, option_modules, &argc, argv, &xwayland) < 0)
2177                 goto error_compositor;
2178
2179         if (!xwayland) {
2180                 weston_config_section_get_bool(section, "xwayland", &xwayland,
2181                                                false);
2182         }
2183
2184         if (ivi_shell_init(&ivi) < 0)
2185                 goto error_compositor;
2186
2187         if (xwayland) {
2188                 if (!wet_load_xwayland(ivi.compositor))
2189                         goto error_compositor;
2190         }
2191
2192         if (ivi_policy_init(&ivi) < 0)
2193                 goto error_compositor;
2194
2195
2196         if (list_debug_scopes) {
2197                 struct weston_log_scope *nscope = NULL;
2198
2199                 weston_log("Printing available debug scopes:\n");
2200
2201                 while ((nscope = weston_log_scopes_iterate(log_ctx, nscope))) {
2202                         weston_log("\tscope name: %s, desc: %s",
2203                                         weston_log_scope_get_name(nscope),
2204                                         weston_log_scope_get_description(nscope));
2205                 }
2206
2207                 weston_log("\n");
2208
2209                 goto error_compositor;
2210         }
2211
2212         add_bindings(ivi.compositor);
2213
2214         if (ivi.remoting_api)
2215                 ivi_enable_remote_outputs(&ivi);
2216
2217         if (create_listening_socket(display, socket_name) < 0)
2218                 goto error_compositor;
2219
2220         ivi_shell_init_black_fs(&ivi);
2221
2222         ivi.compositor->exit = handle_exit;
2223
2224         weston_compositor_wake(ivi.compositor);
2225
2226         ivi_shell_create_global(&ivi);
2227
2228         ivi_launch_shell_client(&ivi, "shell-client",
2229                                 &ivi.shell_client.client);
2230         ivi_launch_shell_client(&ivi, "shell-client-ext",
2231                                 &ivi.shell_client_ext.client);
2232
2233         if (debug)
2234                 ivi_screenshooter_create(&ivi);
2235         ivi_agl_systemd_notify(&ivi);
2236
2237         wl_display_run(display);
2238
2239         ret = ivi.compositor->exit_code;
2240
2241         wl_display_destroy_clients(display);
2242
2243 error_compositor:
2244         free(backend);
2245         backend = NULL;
2246         free(modules);
2247         modules = NULL;
2248
2249         weston_compositor_destroy(ivi.compositor);
2250
2251         weston_log_scope_destroy(log_scope);
2252         log_scope = NULL;
2253
2254         weston_log_subscriber_destroy(logger);
2255         weston_log_ctx_destroy(log_ctx);
2256
2257         ivi_policy_destroy(ivi.policy);
2258
2259 error_signals:
2260         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
2261                 if (signals[i])
2262                         wl_event_source_remove(signals[i]);
2263
2264         wl_display_destroy(display);
2265
2266         log_file_close();
2267         if (ivi.config)
2268                 weston_config_destroy(ivi.config);
2269
2270 exit_signals:
2271         free(log);
2272         free(config_file);
2273         free(socket_name);
2274         free(option_modules);
2275         return ret;
2276 }