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 #include <libweston/backend-headless.h>
  43 #ifdef HAVE_BACKEND_X11
  44 #include <libweston/backend-x11.h>
  45 #endif
  46 #include <libweston/libweston.h>
  47 #include <libweston/windowed-output-api.h>
  48 #include <libweston/config-parser.h>
  49 #include <libweston/weston-log.h>
  50 #include <weston/weston.h>
  51
  52 #include "shared/os-compatibility.h"
  53 #include "shared/helpers.h"
  54
  55 #include "agl-shell-server-protocol.h"
  56
  57 #ifdef HAVE_REMOTING
  58 #include "remote.h"
  59 #endif
  60
  61 #ifdef HAVE_WALTHAM
  62 #include <waltham-transmitter/transmitter_api.h>
  63 #endif
  64
  65 static int cached_tm_mday = -1;
  66 static struct weston_log_scope *log_scope;
  67
  68 struct ivi_compositor *
  69 to_ivi_compositor(struct weston_compositor *ec)
  70 {
  71         return weston_compositor_get_user_data(ec);
  72 }
  73
  74 static void
  75 handle_output_destroy(struct wl_listener *listener, void *data)
  76 {
  77         struct ivi_output *output;
  78
  79         output = wl_container_of(listener, output, output_destroy);
  80         assert(output->output == data);
  81
  82         if (output->fullscreen_view.fs->view) {
  83                 weston_surface_destroy(output->fullscreen_view.fs->view->surface);
  84                 output->fullscreen_view.fs->view = NULL;
  85         }
  86
  87         output->output = NULL;
  88         wl_list_remove(&output->output_destroy.link);
  89 }
  90
  91 struct ivi_output *
  92 to_ivi_output(struct weston_output *o)
  93 {
  94         struct wl_listener *listener;
  95         struct ivi_output *output;
  96
  97         listener = weston_output_get_destroy_listener(o, handle_output_destroy);
  98         output = wl_container_of(listener, output, output_destroy);
  99
 100         return output;
 101 }
 102
 103 static void
 104 ivi_output_configure_app_id(struct ivi_output *ivi_output)
 105 {
 106         if (ivi_output->config) {
 107                 if (ivi_output->app_id != NULL)
 108                         return;
 109
 110                 weston_config_section_get_string(ivi_output->config,
 111                                                  "agl-shell-app-id",
 112                                                  &ivi_output->app_id,
 113                                                  NULL);
 114
 115                 if (ivi_output->app_id == NULL)
 116                         return;
 117
 118                 weston_log("Will place app_id %s on output %s\n",
 119                                 ivi_output->app_id, ivi_output->name);
 120         }
 121 }
 122
 123 static struct ivi_output *
 124 ivi_ensure_output(struct ivi_compositor *ivi, char *name,
 125                   struct weston_config_section *config)
 126 {
 127         struct ivi_output *output = NULL;
 128         wl_list_for_each(output, &ivi->outputs, link) {
 129                 if (strcmp(output->name, name) == 0) {
 130                         free(name);
 131                         return output;
 132                 }
 133         }
 134
 135         output = zalloc(sizeof *output);
 136         if (!output) {
 137                 free(name);
 138                 return NULL;
 139         }
 140
 141         output->ivi = ivi;
 142         output->name = name;
 143         output->config = config;
 144
 145         output->output = weston_compositor_create_output(ivi->compositor, name);
 146         if (!output->output) {
 147                 free(output->name);
 148                 free(output);
 149                 return NULL;
 150         }
 151
 152         output->output_destroy.notify = handle_output_destroy;
 153         weston_output_add_destroy_listener(output->output,
 154                                            &output->output_destroy);
 155
 156         wl_list_insert(&ivi->outputs, &output->link);
 157         ivi_output_configure_app_id(output);
 158         return output;
 159 }
 160
 161 static int
 162 count_heads(struct weston_output *output)
 163 {
 164         struct weston_head *iter = NULL;
 165         int n = 0;
 166
 167         while ((iter = weston_output_iterate_heads(output, iter)))
 168                 ++n;
 169
 170         return n;
 171 }
 172
 173 static void
 174 handle_head_destroy(struct wl_listener *listener, void *data)
 175 {
 176         struct weston_head *head = data;
 177         struct weston_output *output;
 178
 179         wl_list_remove(&listener->link);
 180         free(listener);
 181
 182         output = weston_head_get_output(head);
 183
 184         /* On shutdown path, the output might be already gone. */
 185         if (!output)
 186                 return;
 187
 188         /* We're the last head */
 189         if (count_heads(output) <= 1)
 190                 weston_output_destroy(output);
 191 }
 192
 193 static void
 194 add_head_destroyed_listener(struct weston_head *head)
 195 {
 196         /* We already have a destroy listener */
 197         if (weston_head_get_destroy_listener(head, handle_head_destroy))
 198                 return;
 199
 200         struct wl_listener *listener = zalloc(sizeof *listener);
 201         if (!listener)
 202                 return;
 203
 204         listener->notify = handle_head_destroy;
 205         weston_head_add_destroy_listener(head, listener);
 206 }
 207
 208 static int
 209 drm_configure_output(struct ivi_output *output)
 210 {
 211         struct ivi_compositor *ivi = output->ivi;
 212         struct weston_config_section *section = output->config;
 213         enum weston_drm_backend_output_mode mode =
 214                 WESTON_DRM_BACKEND_OUTPUT_PREFERRED;
 215         char *modeline = NULL;
 216         char *gbm_format = NULL;
 217         char *seat = NULL;
 218
 219         if (section) {
 220                 char *m;
 221                 weston_config_section_get_string(section, "mode", &m, "preferred");
 222
 223                 /* This should have been handled earlier */
 224                 assert(strcmp(m, "off") != 0);
 225
 226                 if (ivi->cmdline.use_current_mode || strcmp(m, "current") == 0) {
 227                         mode = WESTON_DRM_BACKEND_OUTPUT_CURRENT;
 228                 } else if (strcmp(m, "preferred") != 0) {
 229                         modeline = m;
 230                         m = NULL;
 231                 }
 232                 free(m);
 233
 234                 weston_config_section_get_string(section, "gbm-format",
 235                                                  &gbm_format, NULL);
 236
 237                 weston_config_section_get_string(section, "seat", &seat, "");
 238         }
 239
 240         if (ivi->drm_api->set_mode(output->output, mode, modeline) < 0) {
 241                 weston_log("Cannot configure output using weston_drm_output_api.\n");
 242                 free(modeline);
 243                 return -1;
 244         }
 245         free(modeline);
 246
 247         ivi->drm_api->set_gbm_format(output->output, gbm_format);
 248         free(gbm_format);
 249
 250         ivi->drm_api->set_seat(output->output, seat);
 251         free(seat);
 252
 253         return 0;
 254 }
 255
 256 #define WINDOWED_DEFAULT_WIDTH 1024
 257 #define WINDOWED_DEFAULT_HEIGHT 768
 258
 259 static int
 260 windowed_configure_output(struct ivi_output *output)
 261 {
 262         struct ivi_compositor *ivi = output->ivi;
 263         struct weston_config_section *section = output->config;
 264         int width = WINDOWED_DEFAULT_WIDTH;
 265         int height = WINDOWED_DEFAULT_HEIGHT;
 266
 267         if (section) {
 268                 char *mode;
 269
 270                 weston_config_section_get_string(section, "mode", &mode, NULL);
 271                 if (!mode || sscanf(mode, "%dx%d", &width, &height) != 2) {
 272                         weston_log("Invalid mode for output %s. Using defaults.\n",
 273                                    output->name);
 274                         width = WINDOWED_DEFAULT_WIDTH;
 275                         height = WINDOWED_DEFAULT_HEIGHT;
 276                 }
 277                 free(mode);
 278         }
 279
 280         if (ivi->cmdline.width)
 281                 width = ivi->cmdline.width;
 282         if (ivi->cmdline.height)
 283                 height = ivi->cmdline.height;
 284         if (ivi->cmdline.scale)
 285                 weston_output_set_scale(output->output, ivi->cmdline.scale);
 286
 287         if (ivi->window_api->output_set_size(output->output, width, height) < 0) {
 288                 weston_log("Cannot configure output '%s' using weston_windowed_output_api.\n",
 289                            output->name);
 290                 return -1;
 291         }
 292
 293         weston_log("Configured windowed_output_api to %dx%d\n", width, height);
 294
 295         return 0;
 296 }
 297
 298 static int
 299 parse_transform(const char *transform, uint32_t *out)
 300 {
 301         static const struct { const char *name; uint32_t token; } transforms[] = {
 302                 { "normal",     WL_OUTPUT_TRANSFORM_NORMAL },
 303                 { "90",         WL_OUTPUT_TRANSFORM_90 },
 304                 { "180",        WL_OUTPUT_TRANSFORM_180 },
 305                 { "270",        WL_OUTPUT_TRANSFORM_270 },
 306                 { "flipped",    WL_OUTPUT_TRANSFORM_FLIPPED },
 307                 { "flipped-90", WL_OUTPUT_TRANSFORM_FLIPPED_90 },
 308                 { "flipped-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 },
 309                 { "flipped-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 },
 310         };
 311
 312         for (size_t i = 0; i < ARRAY_LENGTH(transforms); i++)
 313                 if (strcmp(transforms[i].name, transform) == 0) {
 314                         *out = transforms[i].token;
 315                         return 0;
 316                 }
 317
 318         *out = WL_OUTPUT_TRANSFORM_NORMAL;
 319         return -1;
 320 }
 321
 322 static int
 323 configure_output(struct ivi_output *output)
 324 {
 325         struct ivi_compositor *ivi = output->ivi;
 326         struct weston_config_section *section = output->config;
 327         int32_t scale = 1;
 328         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
 329
 330         /*
 331          * This can happen with the wayland backend with 'sprawl'. The config
 332          * is hard-coded, so we don't need to do anything.
 333          */
 334         if (!ivi->drm_api && !ivi->window_api)
 335                 return 0;
 336
 337         if (section) {
 338                 char *t;
 339
 340                 weston_config_section_get_int(section, "scale", &scale, 1);
 341                 weston_config_section_get_string(section, "transform", &t, "normal");
 342                 if (parse_transform(t, &transform) < 0)
 343                         weston_log("Invalid transform \"%s\" for output %s\n",
 344                                    t, output->name);
 345                 free(t);
 346         }
 347
 348         weston_output_set_scale(output->output, scale);
 349         weston_output_set_transform(output->output, transform);
 350
 351         if (ivi->drm_api)
 352                 return drm_configure_output(output);
 353         else
 354                 return windowed_configure_output(output);
 355 }
 356
 357 /*
 358  * Reorgainizes the output's add array into two sections.
 359  * add[0..ret-1] are the heads that failed to get attached.
 360  * add[ret..add_len] are the heads that were successfully attached.
 361  *
 362  * The order between elements in each section is stable.
 363  */
 364 static size_t
 365 try_attach_heads(struct ivi_output *output)
 366 {
 367         size_t fail_len = 0;
 368
 369         for (size_t i = 0; i < output->add_len; ++i) {
 370                 if (weston_output_attach_head(output->output, output->add[i]) < 0) {
 371                         struct weston_head *tmp = output->add[i];
 372                         memmove(&output->add[fail_len + 1], output->add[fail_len],
 373                                 sizeof output->add[0] * (i - fail_len));
 374                         output->add[fail_len++] = tmp;
 375                 }
 376         }
 377
 378         return fail_len;
 379 }
 380
 381 /*
 382  * Like try_attach_heads, this reorganizes the output's add array into a failed
 383  * and successful section.
 384  * i is the number of heads that already failed the previous step.
 385  */
 386 static size_t
 387 try_enable_output(struct ivi_output *output, size_t i)
 388 {
 389         for (; i < output->add_len; ++i) {
 390                 struct weston_head *head;
 391
 392                 if (weston_output_enable(output->output) == 0)
 393                         break;
 394
 395                 head = output->add[output->add_len - 1];
 396                 memmove(&output->add[i + 1], &output->add[i],
 397                         sizeof output->add[0] * (output->add_len - i));
 398                 output->add[i] = head;
 399
 400                 weston_head_detach(head);
 401         }
 402
 403         return i;
 404 }
 405
 406 static int
 407 try_attach_enable_heads(struct ivi_output *output)
 408 {
 409         size_t fail_len;
 410         assert(!output->output->enabled);
 411
 412         fail_len = try_attach_heads(output);
 413
 414         if (configure_output(output) < 0)
 415                 return -1;
 416
 417         fail_len = try_enable_output(output, fail_len);
 418
 419         /* All heads failed to be attached */
 420         if (fail_len == output->add_len)
 421                 return -1;
 422
 423         /* For each successful head attached */
 424         for (size_t i = fail_len; i < output->add_len; ++i)
 425                 add_head_destroyed_listener(output->add[i]);
 426
 427         output->add_len = fail_len;
 428         return 0;
 429 }
 430
 431 static int
 432 process_output(struct ivi_output *output)
 433 {
 434         if (output->output->enabled) {
 435                 output->add_len = try_attach_heads(output);
 436                 return output->add_len == 0 ? 0 : -1;
 437         }
 438
 439         return try_attach_enable_heads(output);
 440 }
 441
 442 static void
 443 head_disable(struct ivi_compositor *ivi, struct weston_head *head)
 444 {
 445         struct weston_output *output;
 446         struct ivi_output *ivi_output;
 447         struct wl_listener *listener;
 448
 449         output = weston_head_get_output(head);
 450         assert(output);
 451
 452         listener = weston_output_get_destroy_listener(output,
 453                                                       handle_output_destroy);
 454         assert(listener);
 455
 456         ivi_output = wl_container_of(listener, ivi_output, output_destroy);
 457         assert(ivi_output->output == output);
 458
 459         weston_head_detach(head);
 460         if (count_heads(ivi_output->output) == 0) {
 461                 weston_output_disable(ivi_output->output);
 462         }
 463 }
 464
 465 static struct weston_config_section *
 466 find_controlling_output_config(struct weston_config *config,
 467                                const char *name)
 468 {
 469         struct weston_config_section *section;
 470         char *same_as;
 471         int depth = 0;
 472
 473         same_as = strdup(name);
 474         do {
 475                 section = weston_config_get_section(config, "output",
 476                                                     "name", same_as);
 477                 if (!section && depth > 0)
 478                         weston_log("Configuration error: output section reffered"
 479                                    "to by same-as=%s not found.\n", same_as);
 480                 free(same_as);
 481
 482                 if (!section)
 483                         return NULL;
 484
 485                 if (depth++ > 8) {
 486                         weston_log("Configuration error: same-as nested too "
 487                                    "deep for output '%s'.\n", name);
 488                         return NULL;
 489                 }
 490
 491                 weston_config_section_get_string(section, "same-as",
 492                                                  &same_as, NULL);
 493         } while (same_as);
 494
 495         return section;
 496 }
 497
 498 static void
 499 head_prepare_enable(struct ivi_compositor *ivi, struct weston_head *head)
 500 {
 501         const char *name = weston_head_get_name(head);
 502         struct weston_config_section *section;
 503         struct ivi_output *output;
 504         char *output_name = NULL;
 505
 506         section = find_controlling_output_config(ivi->config, name);
 507         if (section) {
 508                 char *mode;
 509
 510                 weston_config_section_get_string(section, "mode", &mode, NULL);
 511                 if (mode && strcmp(mode, "off") == 0) {
 512                         free(mode);
 513                         return;
 514                 }
 515                 free(mode);
 516
 517                 weston_config_section_get_string(section, "name",
 518                                                  &output_name, NULL);
 519         } else {
 520                 output_name = strdup(name);
 521         }
 522
 523         if (!output_name)
 524                 return;
 525
 526         output = ivi_ensure_output(ivi, output_name, section);
 527         if (!output)
 528                 return;
 529
 530         if (output->add_len >= ARRAY_LENGTH(output->add))
 531                 return;
 532
 533         output->add[output->add_len++] = head;
 534 }
 535
 536 static void
 537 heads_changed(struct wl_listener *listener, void *arg)
 538 {
 539         struct weston_compositor *compositor = arg;
 540         struct weston_head *head = NULL;
 541         struct ivi_compositor *ivi = to_ivi_compositor(compositor);
 542         struct ivi_output *output;
 543
 544         while ((head = weston_compositor_iterate_heads(ivi->compositor, head))) {
 545                 bool connected = weston_head_is_connected(head);
 546                 bool enabled = weston_head_is_enabled(head);
 547                 bool changed = weston_head_is_device_changed(head);
 548                 bool non_desktop = weston_head_is_non_desktop(head);
 549
 550                 if (connected && !enabled && !non_desktop)
 551                         head_prepare_enable(ivi, head);
 552                 else if (!connected && enabled)
 553                         head_disable(ivi, head);
 554                 else if (enabled && changed)
 555                         weston_log("Detected a monitor change on head '%s', "
 556                                    "not bothering to do anything about it.\n",
 557                                    weston_head_get_name(head));
 558
 559                 weston_head_reset_device_changed(head);
 560         }
 561
 562         wl_list_for_each(output, &ivi->outputs, link) {
 563                 if (output->add_len == 0)
 564                         continue;
 565
 566                 if (process_output(output) < 0) {
 567                         output->add_len = 0;
 568                         ivi->init_failed = true;
 569                 }
 570         }
 571 }
 572
 573 #ifdef HAVE_WALTHAM
 574 static int
 575 load_waltham_plugin(struct ivi_compositor *ivi, struct weston_config *config)
 576 {
 577         struct weston_compositor *compositor = ivi->compositor;
 578         int (*module_init)(struct weston_compositor *wc);
 579
 580         module_init = weston_load_module("waltham-transmitter.so",
 581                                          "wet_module_init");
 582         if (!module_init)
 583                 return -1;
 584
 585         if (module_init(compositor) < 0)
 586                 return -1;
 587
 588         ivi->waltham_transmitter_api = weston_get_transmitter_api(compositor);
 589         if (!ivi->waltham_transmitter_api) {
 590                 weston_log("Failed to load waltham-transmitter plugin.\n");
 591                 return -1;
 592         }
 593
 594         weston_log("waltham-transmitter plug-in loaded\n");
 595         return 0;
 596 }
 597 #else
 598 static int
 599 load_waltham_plugin(struct ivi_compositor *ivi, struct weston_config *config)
 600 {
 601         return -1;
 602 }
 603 #endif
 604
 605 #ifdef HAVE_REMOTING
 606 static int
 607 drm_backend_remoted_output_configure(struct weston_output *output,
 608                                      struct weston_config_section *section,
 609                                      char *modeline,
 610                                      const struct weston_remoting_api *api)
 611 {
 612         char *gbm_format = NULL;
 613         char *seat = NULL;
 614         char *host = NULL;
 615         char *pipeline = NULL;
 616         int port, ret;
 617         int32_t scale = 1;
 618         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
 619         char *trans;
 620
 621         ret = api->set_mode(output, modeline);
 622         if (ret < 0) {
 623                 weston_log("Cannot configure an output \"%s\" using "
 624                                 "weston_remoting_api. Invalid mode\n",
 625                                 output->name);
 626                 return -1;
 627         }
 628
 629         weston_config_section_get_int(section, "scale", &scale, 1);
 630         weston_output_set_scale(output, scale);
 631
 632         weston_config_section_get_string(section, "transform", &trans, "normal");
 633         if (parse_transform(trans, &transform) < 0) {
 634                 weston_log("Invalid transform \"%s\" for output %s\n",
 635                            trans, output->name);
 636         }
 637         weston_output_set_transform(output, transform);
 638
 639         weston_config_section_get_string(section, "gbm-format",
 640                                          &gbm_format, NULL);
 641         api->set_gbm_format(output, gbm_format);
 642         free(gbm_format);
 643
 644         weston_config_section_get_string(section, "seat", &seat, "");
 645
 646         api->set_seat(output, seat);
 647         free(seat);
 648
 649         weston_config_section_get_string(section, "gst-pipeline", &pipeline,
 650                         NULL);
 651         if (pipeline) {
 652                 api->set_gst_pipeline(output, pipeline);
 653                 free(pipeline);
 654                 return 0;
 655         }
 656
 657         weston_config_section_get_string(section, "host", &host, NULL);
 658         weston_config_section_get_int(section, "port", &port, 0);
 659         if (!host || port <= 0 || 65533 < port) {
 660                 weston_log("Cannot configure an output \"%s\". "
 661                                 "Need to specify gst-pipeline or "
 662                                 "host and port (1-65533).\n", output->name);
 663         }
 664         api->set_host(output, host);
 665         free(host);
 666         api->set_port(output, port);
 667
 668         return 0;
 669 }
 670
 671
 672 static int
 673 remote_output_init(struct ivi_output *ivi_output,
 674                    struct weston_compositor *compositor,
 675                    struct weston_config_section *section,
 676                    const struct weston_remoting_api *api)
 677 {
 678         char *output_name, *modeline = NULL;
 679         int ret = -1;
 680
 681         weston_config_section_get_string(section, "name", &output_name, NULL);
 682         if (!output_name)
 683                 return ret;
 684
 685         weston_config_section_get_string(section, "mode", &modeline, "off");
 686         if (strcmp(modeline, "off") == 0)
 687                 goto err;
 688
 689         ivi_output->output = api->create_output(compositor, output_name);
 690         if (!ivi_output->output) {
 691                 weston_log("Cannot create remoted output \"%s\".\n",
 692                                 output_name);
 693                 goto err;
 694         }
 695
 696         ret = drm_backend_remoted_output_configure(ivi_output->output, section,
 697                                                    modeline, api);
 698         if (ret < 0) {
 699                 weston_log("Cannot configure remoted output \"%s\".\n",
 700                                 output_name);
 701                 goto err;
 702         }
 703
 704         if (weston_output_enable(ivi_output->output) < 0) {
 705                 weston_log("Enabling remoted output \"%s\" failed.\n",
 706                                 output_name);
 707                 goto err;
 708         }
 709
 710         free(modeline);
 711         free(output_name);
 712         weston_log("remoted output '%s' enabled\n", ivi_output->output->name);
 713
 714         return 0;
 715
 716 err:
 717         free(modeline);
 718         free(output_name);
 719         if (ivi_output->output)
 720                 weston_output_destroy(ivi_output->output);
 721
 722         return ret;
 723 }
 724
 725 static void
 726 ivi_enable_remote_outputs(struct ivi_compositor *ivi)
 727 {
 728         struct weston_config_section *remote_section = NULL;
 729         const char *section_name;
 730         struct weston_config *config = ivi->config;
 731
 732         while (weston_config_next_section(config, &remote_section, &section_name)) {
 733                 if (strcmp(section_name, "remote-output"))
 734                         continue;
 735
 736                 struct ivi_output *ivi_output = NULL;
 737                 bool output_found = false;
 738                 char *_name = NULL;
 739
 740                 weston_config_section_get_string(remote_section,
 741                                                  "name", &_name, NULL);
 742                 wl_list_for_each(ivi_output, &ivi->outputs, link) {
 743                         if (!strcmp(ivi_output->name, _name)) {
 744                                 output_found = true;
 745                                 break;
 746                         }
 747                 }
 748
 749                 if (output_found) {
 750                         free(_name);
 751                         continue;
 752                 }
 753
 754                 ivi_output = zalloc(sizeof(*ivi_output));
 755
 756                 ivi_output->ivi = ivi;
 757                 ivi_output->name = _name;
 758                 ivi_output->config = remote_section;
 759                 ivi_output->type = OUTPUT_REMOTE;
 760
 761                 if (remote_output_init(ivi_output, ivi->compositor,
 762                                        remote_section, ivi->remoting_api)) {
 763                         free(ivi_output->name);
 764                         free(ivi_output);
 765                         continue;
 766                 }
 767
 768                 ivi_output->output_destroy.notify = handle_output_destroy;
 769                 weston_output_add_destroy_listener(ivi_output->output,
 770                                                    &ivi_output->output_destroy);
 771
 772                 wl_list_insert(&ivi->outputs, &ivi_output->link);
 773                 ivi_output_configure_app_id(ivi_output);
 774         }
 775 }
 776
 777 static void
 778 ivi_enable_waltham_outputs(struct ivi_compositor *ivi)
 779 {
 780         struct weston_config_section *transmitter_section = NULL;
 781         const char *sect_name;
 782         struct weston_config *config = ivi->config;
 783
 784         while (weston_config_next_section(config, &transmitter_section, &sect_name)) {
 785                 if (strcmp(sect_name, "transmitter-output"))
 786                         continue;
 787
 788                 struct ivi_output *ivi_output = NULL;
 789                 bool output_found = false;
 790                 char *_name = NULL;
 791
 792                 weston_config_section_get_string(transmitter_section,
 793                                 "name", &_name, NULL);
 794                 wl_list_for_each(ivi_output, &ivi->outputs, link) {
 795                         if (!strcmp(ivi_output->name, _name)) {
 796                                 output_found = true;
 797                                 break;
 798                         }
 799                 }
 800
 801                 if (output_found) {
 802                         free(_name);
 803                         continue;
 804                 }
 805
 806                 ivi_output = zalloc(sizeof(*ivi_output));
 807
 808                 ivi_output->ivi = ivi;
 809                 ivi_output->name = _name;
 810                 ivi_output->config = transmitter_section;
 811
 812                 if (remote_output_init(ivi_output, ivi->compositor,
 813                                         transmitter_section, ivi->remoting_api)) {
 814                         free(ivi_output->name);
 815                         free(ivi_output);
 816                         continue;
 817                 }
 818
 819                 ivi_output->type = OUTPUT_WALTHAM;
 820                 ivi_output->output_destroy.notify = handle_output_destroy;
 821                 weston_output_add_destroy_listener(ivi_output->output,
 822                                 &ivi_output->output_destroy);
 823
 824                 wl_list_insert(&ivi->outputs, &ivi_output->link);
 825                 ivi_output_configure_app_id(ivi_output);
 826         }
 827 }
 828
 829 static int
 830 load_remoting_plugin(struct ivi_compositor *ivi, struct weston_config *config)
 831 {
 832         struct weston_compositor *compositor = ivi->compositor;
 833         int (*module_init)(struct weston_compositor *wc);
 834
 835         module_init = weston_load_module("remoting-plugin.so",
 836                                          "weston_module_init");
 837         if (!module_init)
 838                 return -1;
 839
 840         if (module_init(compositor) < 0)
 841                 return -1;
 842
 843         ivi->remoting_api = weston_remoting_get_api(compositor);
 844         if (!ivi->remoting_api)
 845                 return -1;
 846         return 0;
 847 }
 848 #else
 849 static int
 850 load_remoting_plugin(struct weston_compositor *compositor, struct weston_config *config)
 851 {
 852         return -1;
 853 }
 854 #endif
 855
 856 static int
 857 load_drm_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 858 {
 859         struct weston_drm_backend_config config = {
 860                 .base = {
 861                         .struct_version = WESTON_DRM_BACKEND_CONFIG_VERSION,
 862                         .struct_size = sizeof config,
 863                 },
 864         };
 865         struct weston_config_section *section;
 866         int use_current_mode = 0;
 867         int use_pixman = 0;
 868         bool use_shadow;
 869         int ret;
 870
 871         const struct weston_option options[] = {
 872                 { WESTON_OPTION_STRING, "seat", 0, &config.seat_id },
 873                 { WESTON_OPTION_INTEGER, "tty", 0, &config.tty },
 874                 { WESTON_OPTION_STRING, "drm-device", 0, &config.specific_device },
 875                 { WESTON_OPTION_BOOLEAN, "current-mode", 0, &use_current_mode },
 876                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman },
 877         };
 878
 879         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 880         config.use_pixman = use_pixman;
 881         ivi->cmdline.use_current_mode = use_current_mode;
 882
 883         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
 884         weston_config_section_get_string(section, "gbm-format",
 885                                          &config.gbm_format, NULL);
 886         weston_config_section_get_uint(section, "pageflip-timeout",
 887                                        &config.pageflip_timeout, 0);
 888         weston_config_section_get_bool(section, "pixman-shadow", &use_shadow, 1);
 889         config.use_pixman_shadow = use_shadow;
 890
 891         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_DRM,
 892                                              &config.base);
 893         if (ret < 0)
 894                 return ret;
 895
 896         ivi->drm_api = weston_drm_output_get_api(ivi->compositor);
 897         if (!ivi->drm_api) {
 898                 weston_log("Cannot use drm output api.\n");
 899                 ret = -1;
 900                 goto error;
 901         }
 902
 903         load_remoting_plugin(ivi, ivi->config);
 904         load_waltham_plugin(ivi, ivi->config);
 905
 906 error:
 907         free(config.gbm_format);
 908         free(config.seat_id);
 909         return ret;
 910 }
 911
 912 static void
 913 windowed_parse_common_options(struct ivi_compositor *ivi, int *argc, char *argv[],
 914                               bool *use_pixman, bool *fullscreen, int *output_count)
 915 {
 916         struct weston_config_section *section;
 917         bool pixman;
 918         int fs = 0;
 919
 920         const struct weston_option options[] = {
 921                 { WESTON_OPTION_INTEGER, "width", 0, &ivi->cmdline.width },
 922                 { WESTON_OPTION_INTEGER, "height", 0, &ivi->cmdline.height },
 923                 { WESTON_OPTION_INTEGER, "scale", 0, &ivi->cmdline.scale },
 924                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &pixman },
 925                 { WESTON_OPTION_BOOLEAN, "fullscreen", 0, &fs },
 926                 { WESTON_OPTION_INTEGER, "output-count", 0, output_count },
 927         };
 928
 929         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
 930         weston_config_section_get_bool(section, "use-pixman", &pixman, 0);
 931
 932         *output_count = 1;
 933         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 934         *use_pixman = pixman;
 935         *fullscreen = fs;
 936 }
 937
 938 static int
 939 windowed_create_outputs(struct ivi_compositor *ivi, int output_count,
 940                         const char *match_prefix, const char *name_prefix)
 941 {
 942         struct weston_config_section *section = NULL;
 943         const char *section_name;
 944         char *default_output = NULL;
 945         int i = 0;
 946         size_t match_len = strlen(match_prefix);
 947
 948         while (weston_config_next_section(ivi->config, &section, &section_name)) {
 949                 char *output_name;
 950
 951                 if (i >= output_count)
 952                         break;
 953
 954                 if (strcmp(section_name, "output") != 0)
 955                         continue;
 956
 957                 weston_config_section_get_string(section, "name", &output_name, NULL);
 958                 if (output_name == NULL)
 959                         continue;
 960                 if (strncmp(output_name, match_prefix, match_len) != 0) {
 961                         free(output_name);
 962                         continue;
 963                 }
 964
 965                 if (ivi->window_api->create_head(ivi->compositor, output_name) < 0) {
 966                         free(output_name);
 967                         return -1;
 968                 }
 969
 970                 free(output_name);
 971                 ++i;
 972         }
 973
 974         for (; i < output_count; ++i) {
 975                 if (asprintf(&default_output, "%s%d", name_prefix, i) < 0)
 976                         return -1;
 977
 978                 if (ivi->window_api->create_head(ivi->compositor, default_output) < 0) {
 979                         free(default_output);
 980                         return -1;
 981                 }
 982
 983                 free(default_output);
 984         }
 985
 986         return 0;
 987 }
 988
 989 static int
 990 load_wayland_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 991 {
 992         struct weston_wayland_backend_config config = {
 993                 .base = {
 994                         .struct_version = WESTON_WAYLAND_BACKEND_CONFIG_VERSION,
 995                         .struct_size = sizeof config,
 996                 },
 997         };
 998         struct weston_config_section *section;
 999         int sprawl = 0;
1000         int output_count;
1001         int ret;
1002
1003         const struct weston_option options[] = {
1004                 { WESTON_OPTION_STRING, "display", 0, &config.display_name },
1005                 { WESTON_OPTION_STRING, "sprawl", 0, &sprawl },
1006         };
1007
1008         windowed_parse_common_options(ivi, argc, argv, &config.use_pixman,
1009                                       &config.fullscreen, &output_count);
1010
1011         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1012         config.sprawl = sprawl;
1013
1014         section = weston_config_get_section(ivi->config, "shell", NULL, NULL);
1015         weston_config_section_get_string(section, "cursor-theme",
1016                                          &config.cursor_theme, NULL);
1017         weston_config_section_get_int(section, "cursor-size",
1018                                       &config.cursor_size, 32);
1019
1020         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_WAYLAND,
1021                                              &config.base);
1022
1023         free(config.cursor_theme);
1024         free(config.display_name);
1025
1026         if (ret < 0)
1027                 return ret;
1028
1029         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
1030
1031         /*
1032          * We will just assume if load_backend() finished cleanly and
1033          * windowed_output_api is not present that wayland backend is started
1034          * with --sprawl or runs on fullscreen-shell. In this case, all values
1035          * are hardcoded, so nothing can be configured; simply create and
1036          * enable an output.
1037          */
1038         if (ivi->window_api == NULL)
1039                 return 0;
1040
1041         return windowed_create_outputs(ivi, output_count, "WL", "wayland");
1042 }
1043
1044 #ifdef HAVE_BACKEND_X11
1045 static int
1046 load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
1047 {
1048         struct weston_x11_backend_config config = {
1049                 .base = {
1050                         .struct_version = WESTON_X11_BACKEND_CONFIG_VERSION,
1051                         .struct_size = sizeof config,
1052                 },
1053         };
1054         int no_input = 0;
1055         int output_count;
1056         int ret;
1057
1058         const struct weston_option options[] = {
1059                { WESTON_OPTION_BOOLEAN, "no-input", 0, &no_input },
1060         };
1061
1062         windowed_parse_common_options(ivi, argc, argv, &config.use_pixman,
1063                                       &config.fullscreen, &output_count);
1064
1065         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1066         config.no_input = no_input;
1067
1068         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_X11,
1069                                              &config.base);
1070
1071         if (ret < 0)
1072                 return ret;
1073
1074         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
1075         if (!ivi->window_api) {
1076                 weston_log("Cannot use weston_windowed_output_api.\n");
1077                 return -1;
1078         }
1079
1080         return windowed_create_outputs(ivi, output_count, "X", "screen");
1081 }
1082 #else
1083 static int
1084 load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
1085 {
1086         return -1;
1087 }
1088 #endif
1089
1090 static int
1091 load_headless_backend(struct ivi_compositor *ivi, int *argc, char **argv)
1092 {
1093         struct weston_headless_backend_config config = {};
1094         int ret = 0;
1095
1096         bool use_pixman;
1097         bool fullscreen;
1098         bool use_gl;
1099         int output_count;
1100
1101         struct weston_compositor *c = ivi->compositor;
1102
1103         const struct weston_option options[] = {
1104                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman },
1105                 { WESTON_OPTION_BOOLEAN, "use-gl", 0, &use_gl },
1106         };
1107
1108         windowed_parse_common_options(ivi, argc, argv, &use_pixman,
1109                         &fullscreen, &output_count);
1110
1111         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1112         config.use_pixman = use_pixman;
1113         config.use_gl = use_gl;
1114
1115         config.base.struct_version = WESTON_HEADLESS_BACKEND_CONFIG_VERSION;
1116         config.base.struct_size = sizeof(struct weston_headless_backend_config);
1117
1118         /* load the actual headless-backend and configure it */
1119         ret = weston_compositor_load_backend(c, WESTON_BACKEND_HEADLESS,
1120                                              &config.base);
1121         if (ret < 0)
1122                 return ret;
1123
1124         ivi->window_api = weston_windowed_output_get_api(c);
1125         if (!ivi->window_api) {
1126                 weston_log("Cannot use weston_windowed_output_api.\n");
1127                 return -1;
1128         }
1129
1130         if (ivi->window_api->create_head(c, "headless") < 0) {
1131                 weston_log("Cannot create headless back-end\n");
1132                 return -1;
1133         }
1134
1135         return 0;
1136 }
1137
1138 static int
1139 load_backend(struct ivi_compositor *ivi, const char *backend,
1140              int *argc, char *argv[])
1141 {
1142         if (strcmp(backend, "drm-backend.so") == 0) {
1143                 return load_drm_backend(ivi, argc, argv);
1144         } else if (strcmp(backend, "wayland-backend.so") == 0) {
1145                 return load_wayland_backend(ivi, argc, argv);
1146         } else if (strcmp(backend, "x11-backend.so") == 0) {
1147                 return load_x11_backend(ivi, argc, argv);
1148         } else if (strcmp(backend, "headless-backend.so") == 0) {
1149                 return load_headless_backend(ivi, argc, argv);
1150         }
1151
1152         weston_log("fatal: unknown backend '%s'.\n", backend);
1153         return -1;
1154 }
1155
1156 static int
1157 load_modules(struct ivi_compositor *ivi, const char *modules,
1158              int *argc, char *argv[], bool *xwayland)
1159 {
1160         const char *p, *end;
1161         char buffer[256];
1162         int (*module_init)(struct weston_compositor *wc, int argc, char *argv[]);
1163
1164         if (modules == NULL)
1165                 return 0;
1166
1167         p = modules;
1168         while (*p) {
1169                 end = strchrnul(p, ',');
1170                 snprintf(buffer, sizeof buffer, "%.*s", (int) (end - p), p);
1171
1172                 if (strstr(buffer, "xwayland.so")) {
1173                         weston_log("Xwayland plug-in not supported!\n");
1174                         p = end;
1175                         while (*p == ',')
1176                                 p++;
1177                         continue;
1178                 }
1179
1180                 if (strstr(buffer, "systemd-notify.so")) {
1181                         weston_log("systemd-notify plug-in already loaded!\n");
1182                         p = end;
1183                         while (*p == ',')
1184                                 p++;
1185                         continue;
1186                 }
1187
1188                 module_init = weston_load_module(buffer, "wet_module_init");
1189                 if (!module_init)
1190                         return -1;
1191
1192                 if (module_init(ivi->compositor, *argc, argv) < 0)
1193                         return -1;
1194
1195                 p = end;
1196                 while (*p == ',')
1197                         p++;
1198         }
1199
1200         return 0;
1201 }
1202
1203
1204 static char *
1205 choose_default_backend(void)
1206 {
1207         char *backend = NULL;
1208
1209         if (getenv("WAYLAND_DISPLAY") || getenv("WAYLAND_SOCKET"))
1210                 backend = strdup("wayland-backend.so");
1211         else if (getenv("DISPLAY"))
1212                 backend = strdup("x11-backend.so");
1213         else
1214                 backend = strdup("drm-backend.so");
1215
1216         return backend;
1217 }
1218
1219 static int
1220 compositor_init_config(struct weston_compositor *compositor,
1221                        struct weston_config *config)
1222 {
1223         struct xkb_rule_names xkb_names;
1224         struct weston_config_section *section;
1225         int repaint_msec;
1226         bool vt_switching;
1227         bool require_input;
1228
1229         /* agl-compositor.ini [keyboard] */
1230         section = weston_config_get_section(config, "keyboard", NULL, NULL);
1231         weston_config_section_get_string(section, "keymap_rules",
1232                                          (char **) &xkb_names.rules, NULL);
1233         weston_config_section_get_string(section, "keymap_model",
1234                                          (char **) &xkb_names.model, NULL);
1235         weston_config_section_get_string(section, "keymap_layout",
1236                                          (char **) &xkb_names.layout, NULL);
1237         weston_config_section_get_string(section, "keymap_variant",
1238                                          (char **) &xkb_names.variant, NULL);
1239         weston_config_section_get_string(section, "keymap_options",
1240                                          (char **) &xkb_names.options, NULL);
1241
1242         if (weston_compositor_set_xkb_rule_names(compositor, &xkb_names) < 0)
1243                 return -1;
1244
1245         weston_config_section_get_int(section, "repeat-rate",
1246                                       &compositor->kb_repeat_rate, 40);
1247         weston_config_section_get_int(section, "repeat-delay",
1248                                       &compositor->kb_repeat_delay, 400);
1249
1250         weston_config_section_get_bool(section, "vt-switching",
1251                                        &vt_switching, false);
1252         compositor->vt_switching = vt_switching;
1253
1254         /* agl-compositor.ini [core] */
1255         section = weston_config_get_section(config, "core", NULL, NULL);
1256
1257         weston_config_section_get_bool(section, "require-input", &require_input, true);
1258         compositor->require_input = require_input;
1259
1260         weston_config_section_get_int(section, "repaint-window", &repaint_msec,
1261                                       compositor->repaint_msec);
1262         if (repaint_msec < -10 || repaint_msec > 1000) {
1263                 weston_log("Invalid repaint_window value in config: %d\n",
1264                            repaint_msec);
1265         } else {
1266                 compositor->repaint_msec = repaint_msec;
1267         }
1268         weston_log("Output repaint window is %d ms maximum.\n",
1269                    compositor->repaint_msec);
1270
1271         return 0;
1272 }
1273
1274 struct ivi_surface *
1275 to_ivi_surface(struct weston_surface *surface)
1276 {
1277         struct weston_desktop_surface *dsurface;
1278
1279         dsurface = weston_surface_get_desktop_surface(surface);
1280         if (!dsurface)
1281                 return NULL;
1282
1283         return weston_desktop_surface_get_user_data(dsurface);
1284 }
1285
1286 static void
1287 activate_binding(struct weston_seat *seat,
1288                  struct weston_view *focus_view)
1289 {
1290         struct weston_surface *focus = focus_view->surface;
1291         struct weston_surface *main_surface =
1292                 weston_surface_get_main_surface(focus);
1293         struct ivi_surface *surface;
1294
1295         surface = to_ivi_surface(main_surface);
1296         if (!surface)
1297                 return;
1298
1299         weston_seat_set_keyboard_focus(seat, focus);
1300 }
1301
1302 static void
1303 click_to_activate_binding(struct weston_pointer *pointer,
1304                           const struct timespec *time,
1305                           uint32_t button, void *data)
1306 {
1307         if (pointer->grab != &pointer->default_grab)
1308                 return;
1309         if (pointer->focus == NULL)
1310                 return;
1311
1312         activate_binding(pointer->seat, pointer->focus);
1313 }
1314
1315 static void
1316 touch_to_activate_binding(struct weston_touch *touch,
1317                           const struct timespec *time,
1318                           void *data)
1319 {
1320         if (touch->grab != &touch->default_grab)
1321                 return;
1322         if (touch->focus == NULL)
1323                 return;
1324
1325         activate_binding(touch->seat, touch->focus);
1326 }
1327
1328 static void
1329 add_bindings(struct weston_compositor *compositor)
1330 {
1331         weston_compositor_add_button_binding(compositor, BTN_LEFT, 0,
1332                                              click_to_activate_binding,
1333                                              NULL);
1334         weston_compositor_add_button_binding(compositor, BTN_RIGHT, 0,
1335                                              click_to_activate_binding,
1336                                              NULL);
1337         weston_compositor_add_touch_binding(compositor, 0,
1338                                             touch_to_activate_binding,
1339                                             NULL);
1340 }
1341
1342 static int
1343 create_listening_socket(struct wl_display *display, const char *socket_name)
1344 {
1345         if (socket_name) {
1346                 if (wl_display_add_socket(display, socket_name)) {
1347                         weston_log("fatal: failed to add socket: %s\n",
1348                                    strerror(errno));
1349                         return -1;
1350                 }
1351         } else {
1352                 socket_name = wl_display_add_socket_auto(display);
1353                 if (!socket_name) {
1354                         weston_log("fatal: failed to add socket: %s\n",
1355                                    strerror(errno));
1356                         return -1;
1357                 }
1358         }
1359
1360         setenv("WAYLAND_DISPLAY", socket_name, 1);
1361
1362         return 0;
1363 }
1364
1365 static bool
1366 global_filter(const struct wl_client *client, const struct wl_global *global,
1367               void *data)
1368 {
1369         return true;
1370 }
1371
1372 static int
1373 load_config(struct weston_config **config, bool no_config,
1374             const char *config_file)
1375 {
1376         const char *file = "agl-compositor.ini";
1377         const char *full_path;
1378
1379         if (config_file)
1380                 file = config_file;
1381
1382         if (!no_config)
1383                 *config = weston_config_parse(file);
1384
1385         if (*config) {
1386                 full_path = weston_config_get_full_path(*config);
1387
1388                 weston_log("Using config file '%s'.\n", full_path);
1389                 setenv(WESTON_CONFIG_FILE_ENV_VAR, full_path, 1);
1390
1391                 return 0;
1392         }
1393
1394         if (config_file && !no_config) {
1395                 weston_log("fatal: error opening or reading config file '%s'.\n",
1396                         config_file);
1397
1398                 return -1;
1399         }
1400
1401         weston_log("Starting with no config file.\n");
1402         setenv(WESTON_CONFIG_FILE_ENV_VAR, "", 1);
1403
1404         return 0;
1405 }
1406
1407 static FILE *logfile;
1408
1409 static char *
1410 log_timestamp(char *buf, size_t len)
1411 {
1412         struct timeval tv;
1413         struct tm *brokendown_time;
1414         char datestr[128];
1415         char timestr[128];
1416
1417         gettimeofday(&tv, NULL);
1418
1419         brokendown_time = localtime(&tv.tv_sec);
1420         if (brokendown_time == NULL) {
1421                 snprintf(buf, len, "%s", "[(NULL)localtime] ");
1422                 return buf;
1423         }
1424
1425         memset(datestr, 0, sizeof(datestr));
1426         if (brokendown_time->tm_mday != cached_tm_mday) {
1427                 strftime(datestr, sizeof(datestr), "Date: %Y-%m-%d %Z\n",
1428                                 brokendown_time);
1429                 cached_tm_mday = brokendown_time->tm_mday;
1430         }
1431
1432         strftime(timestr, sizeof(timestr), "%H:%M:%S", brokendown_time);
1433         /* if datestr is empty it prints only timestr*/
1434         snprintf(buf, len, "%s[%s.%03li]", datestr,
1435                         timestr, (tv.tv_usec / 1000));
1436
1437         return buf;
1438 }
1439
1440 static void
1441 custom_handler(const char *fmt, va_list arg)
1442 {
1443         char timestr[512];
1444
1445         weston_log_scope_printf(log_scope, "%s libwayland: ",
1446                         log_timestamp(timestr, sizeof(timestr)));
1447         weston_log_scope_vprintf(log_scope, fmt, arg);
1448 }
1449
1450 static void
1451 log_file_open(const char *filename)
1452 {
1453         wl_log_set_handler_server(custom_handler);
1454
1455         if (filename)
1456                 logfile = fopen(filename, "a");
1457
1458         if (!logfile) {
1459                 logfile = stderr;
1460         } else {
1461                 os_fd_set_cloexec(fileno(logfile));
1462                 setvbuf(logfile, NULL, _IOLBF, 256);
1463         }
1464 }
1465
1466 static void
1467 log_file_close(void)
1468 {
1469         if (logfile && logfile != stderr)
1470                 fclose(logfile);
1471         logfile = stderr;
1472 }
1473
1474 static int
1475 vlog(const char *fmt, va_list ap)
1476 {
1477         const char *oom = "Out of memory";
1478         char timestr[128];
1479         int len = 0;
1480         char *str;
1481
1482         if (weston_log_scope_is_enabled(log_scope)) {
1483                 int len_va;
1484                 char *xlog_timestamp = log_timestamp(timestr, sizeof(timestr));
1485                 len_va = vasprintf(&str, fmt, ap);
1486                 if (len_va >= 0) {
1487                         len = weston_log_scope_printf(log_scope, "%s %s",
1488                                         xlog_timestamp, str);
1489                         free(str);
1490                 } else {
1491                         len = weston_log_scope_printf(log_scope, "%s %s",
1492                                         xlog_timestamp, oom);
1493                 }
1494         }
1495
1496         return len;
1497 }
1498
1499
1500 static int
1501 vlog_continue(const char *fmt, va_list ap)
1502 {
1503         return weston_log_scope_vprintf(log_scope, fmt, ap);
1504 }
1505
1506 static int
1507 on_term_signal(int signo, void *data)
1508 {
1509         struct wl_display *display = data;
1510
1511         weston_log("caught signal %d\n", signo);
1512         wl_display_terminate(display);
1513
1514         return 1;
1515 }
1516
1517 static void
1518 handle_exit(struct weston_compositor *compositor)
1519 {
1520         wl_display_terminate(compositor->wl_display);
1521 }
1522
1523 static void
1524 usage(int error_code)
1525 {
1526         FILE *out = error_code == EXIT_SUCCESS ? stdout : stderr;
1527         fprintf(out,
1528                 "Usage: agl-compositor [OPTIONS]\n"
1529                 "\n"
1530                 "This is " PACKAGE_STRING ", the reference compositor for\n"
1531                 "Automotive Grade Linux. " PACKAGE_STRING " supports multiple "
1532                 "backends,\nand depending on which backend is in use different "
1533                 "options will be accepted.\n"
1534                 "\n"
1535                 "Core options:\n"
1536                 "\n"
1537                 "  --version\t\tPrint agl-compositor version\n"
1538                 "  -B, --backend=MODULE\tBackend module, one of\n"
1539                         "\t\t\t\tdrm-backend.so\n"
1540                         "\t\t\t\twayland-backend.so\n"
1541                         "\t\t\t\tx11-backend.so\n"
1542                         "\t\t\t\theadless-backend.so\n"
1543                 "  -S, --socket=NAME\tName of socket to listen on\n"
1544                 "  --log=FILE\t\tLog to the given file\n"
1545                 "  -c, --config=FILE\tConfig file to load, defaults to agl-compositor.ini\n"
1546                 "  --no-config\t\tDo not read agl-compositor.ini\n"
1547                 "  --debug\t\tEnable debug extension(s)\n"
1548                 "  -h, --help\t\tThis help message\n"
1549                 "\n");
1550         exit(error_code);
1551 }
1552
1553 static char *
1554 copy_command_line(int argc, char * const argv[])
1555 {
1556         FILE *fp;
1557         char *str = NULL;
1558         size_t size = 0;
1559         int i;
1560
1561         fp = open_memstream(&str, &size);
1562         if (!fp)
1563                 return NULL;
1564
1565         fprintf(fp, "%s", argv[0]);
1566         for (i = 1; i < argc; i++)
1567                 fprintf(fp, " %s", argv[i]);
1568         fclose(fp);
1569
1570         return str;
1571 }
1572
1573 WL_EXPORT
1574 int wet_main(int argc, char *argv[])
1575 {
1576         struct ivi_compositor ivi = { 0 };
1577         char *cmdline;
1578         struct wl_display *display = NULL;
1579         struct wl_event_loop *loop;
1580         struct wl_event_source *signals[3] = { 0 };
1581         struct weston_config_section *section;
1582         /* Command line options */
1583         char *backend = NULL;
1584         char *socket_name = NULL;
1585         char *log = NULL;
1586         char *modules = NULL;
1587         char *option_modules = NULL;
1588         int help = 0;
1589         int version = 0;
1590         int no_config = 0;
1591         int debug = 0;
1592         char *config_file = NULL;
1593         struct weston_log_context *log_ctx = NULL;
1594         struct weston_log_subscriber *logger;
1595         int ret = EXIT_FAILURE;
1596         bool xwayland = false;
1597
1598         const struct weston_option core_options[] = {
1599                 { WESTON_OPTION_STRING, "backend", 'B', &backend },
1600                 { WESTON_OPTION_STRING, "socket", 'S', &socket_name },
1601                 { WESTON_OPTION_STRING, "log", 0, &log },
1602                 { WESTON_OPTION_BOOLEAN, "help", 'h', &help },
1603                 { WESTON_OPTION_BOOLEAN, "version", 0, &version },
1604                 { WESTON_OPTION_BOOLEAN, "no-config", 0, &no_config },
1605                 { WESTON_OPTION_BOOLEAN, "debug", 0, &debug },
1606                 { WESTON_OPTION_STRING, "config", 'c', &config_file },
1607                 { WESTON_OPTION_STRING, "modules", 0, &option_modules },
1608         };
1609
1610         wl_list_init(&ivi.outputs);
1611         wl_list_init(&ivi.surfaces);
1612         wl_list_init(&ivi.pending_surfaces);
1613         wl_list_init(&ivi.popup_pending_apps);
1614         wl_list_init(&ivi.fullscreen_pending_apps);
1615         wl_list_init(&ivi.split_pending_apps);
1616         wl_list_init(&ivi.remote_pending_apps);
1617         wl_list_init(&ivi.desktop_clients);
1618
1619         /* Prevent any clients we spawn getting our stdin */
1620         os_fd_set_cloexec(STDIN_FILENO);
1621
1622         cmdline = copy_command_line(argc, argv);
1623         parse_options(core_options, ARRAY_LENGTH(core_options), &argc, argv);
1624
1625         if (help)
1626                 usage(EXIT_SUCCESS);
1627
1628         if (version) {
1629                 printf(PACKAGE_STRING "\n");
1630                 return EXIT_SUCCESS;
1631         }
1632
1633         log_ctx = weston_log_ctx_compositor_create();
1634         if (!log_ctx) {
1635                 fprintf(stderr, "Failed to initialize weston debug framework.\n");
1636                 return ret;
1637         }
1638
1639         log_scope = weston_compositor_add_log_scope(log_ctx, "log",
1640                                                     "agl-compositor log\n",
1641                                                     NULL, NULL, NULL);
1642
1643         log_file_open(log);
1644         weston_log_set_handler(vlog, vlog_continue);
1645
1646         logger = weston_log_subscriber_create_log(logfile);
1647         weston_log_subscribe(log_ctx, logger, "log");
1648
1649         weston_log("Command line: %s\n", cmdline);
1650         free(cmdline);
1651
1652         if (load_config(&ivi.config, no_config, config_file) < 0)
1653                 goto error_signals;
1654         section = weston_config_get_section(ivi.config, "core", NULL, NULL);
1655         if (!backend) {
1656                 weston_config_section_get_string(section, "backend", &backend,
1657                                                  NULL);
1658                 if (!backend)
1659                         backend = choose_default_backend();
1660         }
1661         /* from [core] */
1662         weston_config_section_get_bool(section, "hide-cursor", &ivi.hide_cursor, false);
1663         weston_config_section_get_bool(section, "activate-by-default", &ivi.activate_by_default, true);
1664
1665         display = wl_display_create();
1666         loop = wl_display_get_event_loop(display);
1667
1668         wl_display_set_global_filter(display,
1669                                      global_filter, &ivi);
1670
1671         /* Register signal handlers so we shut down cleanly */
1672
1673         signals[0] = wl_event_loop_add_signal(loop, SIGTERM, on_term_signal,
1674                                               display);
1675         signals[1] = wl_event_loop_add_signal(loop, SIGINT, on_term_signal,
1676                                               display);
1677         signals[2] = wl_event_loop_add_signal(loop, SIGQUIT, on_term_signal,
1678                                               display);
1679
1680         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
1681                 if (!signals[i])
1682                         goto error_signals;
1683
1684         ivi.compositor = weston_compositor_create(display, log_ctx, &ivi);
1685         if (!ivi.compositor) {
1686                 weston_log("fatal: failed to create compositor.\n");
1687                 goto error_signals;
1688         }
1689
1690         if (compositor_init_config(ivi.compositor, ivi.config) < 0)
1691                 goto error_compositor;
1692
1693         if (load_backend(&ivi, backend, &argc, argv) < 0) {
1694                 weston_log("fatal: failed to create compositor backend.\n");
1695                 goto error_compositor;
1696         }
1697
1698         ivi.heads_changed.notify = heads_changed;
1699         weston_compositor_add_heads_changed_listener(ivi.compositor,
1700                                                      &ivi.heads_changed);
1701
1702         if (ivi_desktop_init(&ivi) < 0)
1703                 goto error_compositor;
1704
1705         ivi_seat_init(&ivi);
1706
1707         /* load additional modules */
1708         weston_config_section_get_string(section, "modules", &modules, "");
1709         if (load_modules(&ivi, modules, &argc, argv, &xwayland) < 0)
1710                 goto error_compositor;
1711
1712         if (load_modules(&ivi, option_modules, &argc, argv, &xwayland) < 0)
1713                 goto error_compositor;
1714
1715         if (ivi_policy_init(&ivi) < 0)
1716                 goto error_compositor;
1717
1718         if (ivi_shell_init(&ivi) < 0)
1719                 goto error_compositor;
1720
1721         add_bindings(ivi.compositor);
1722
1723         weston_compositor_flush_heads_changed(ivi.compositor);
1724
1725         if (ivi.remoting_api)
1726                 ivi_enable_remote_outputs(&ivi);
1727
1728         if (ivi.waltham_transmitter_api)
1729                 ivi_enable_waltham_outputs(&ivi);
1730
1731         if (create_listening_socket(display, socket_name) < 0)
1732                 goto error_compositor;
1733
1734         ivi_shell_init_black_fs(&ivi);
1735
1736         ivi.compositor->exit = handle_exit;
1737
1738         weston_compositor_wake(ivi.compositor);
1739
1740         ivi_shell_create_global(&ivi);
1741         ivi_launch_shell_client(&ivi);
1742         if (debug)
1743                 ivi_screenshooter_create(&ivi);
1744         ivi_agl_systemd_notify(&ivi);
1745
1746         wl_display_run(display);
1747
1748         ret = ivi.compositor->exit_code;
1749
1750         wl_display_destroy_clients(display);
1751
1752 error_compositor:
1753         weston_compositor_tear_down(ivi.compositor);
1754
1755         weston_compositor_log_scope_destroy(log_scope);
1756         log_scope = NULL;
1757
1758         weston_log_ctx_compositor_destroy(ivi.compositor);
1759         weston_compositor_destroy(ivi.compositor);
1760
1761         weston_log_subscriber_destroy_log(logger);
1762
1763         ivi_policy_destroy(ivi.policy);
1764
1765 error_signals:
1766         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
1767                 if (signals[i])
1768                         wl_event_source_remove(signals[i]);
1769
1770         wl_display_destroy(display);
1771
1772         log_file_close();
1773         if (ivi.config)
1774                 weston_config_destroy(ivi.config);
1775
1776         return ret;
1777 }