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