src/main.c

   1 /*
   2  * Copyright © 2012-2019 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
  28 #include <assert.h>
  29 #include <errno.h>
  30 #include <signal.h>
  31 #include <stdarg.h>
  32 #include <stdbool.h>
  33 #include <stdio.h>
  34 #include <stdlib.h>
  35 #include <string.h>
  36 #include <unistd.h>
  37 #include <linux/input.h>
  38
  39 #include <libweston/backend-drm.h>
  40 #include <libweston/backend-wayland.h>
  41 #ifdef HAVE_BACKEND_X11
  42 #include <libweston/backend-x11.h>
  43 #endif
  44 #include <libweston/libweston.h>
  45 #include <libweston/windowed-output-api.h>
  46 #include <libweston/config-parser.h>
  47
  48 #include "shared/os-compatibility.h"
  49
  50 #include "agl-shell-server-protocol.h"
  51
  52 struct ivi_compositor *
  53 to_ivi_compositor(struct weston_compositor *ec)
  54 {
  55         return weston_compositor_get_user_data(ec);
  56 }
  57
  58 static void
  59 handle_output_destroy(struct wl_listener *listener, void *data)
  60 {
  61         struct ivi_output *output;
  62
  63         output = wl_container_of(listener, output, output_destroy);
  64         assert(output->output == data);
  65
  66         output->output = NULL;
  67         wl_list_remove(&output->output_destroy.link);
  68 }
  69
  70 struct ivi_output *
  71 to_ivi_output(struct weston_output *o)
  72 {
  73         struct wl_listener *listener;
  74         struct ivi_output *output;
  75
  76         listener = weston_output_get_destroy_listener(o, handle_output_destroy);
  77         output = wl_container_of(listener, output, output_destroy);
  78
  79         return output;
  80 }
  81
  82 static struct ivi_output *
  83 ivi_ensure_output(struct ivi_compositor *ivi, char *name,
  84                   struct weston_config_section *config)
  85 {
  86         struct ivi_output *output = NULL;
  87         wl_list_for_each(output, &ivi->outputs, link) {
  88                 if (strcmp(output->name, name) == 0) {
  89                         free(name);
  90                         return output;
  91                 }
  92         }
  93
  94         output = zalloc(sizeof *output);
  95         if (!output) {
  96                 free(name);
  97                 return NULL;
  98         }
  99
 100         output->ivi = ivi;
 101         output->name = name;
 102         output->config = config;
 103
 104         output->output = weston_compositor_create_output(ivi->compositor, name);
 105         if (!output->output) {
 106                 free(output->name);
 107                 free(output);
 108                 return NULL;
 109         }
 110
 111         output->output_destroy.notify = handle_output_destroy;
 112         weston_output_add_destroy_listener(output->output,
 113                                            &output->output_destroy);
 114
 115         wl_list_insert(&ivi->outputs, &output->link);
 116         return output;
 117 }
 118
 119 static int
 120 count_heads(struct weston_output *output)
 121 {
 122         struct weston_head *iter = NULL;
 123         int n = 0;
 124
 125         while ((iter = weston_output_iterate_heads(output, iter)))
 126                 ++n;
 127
 128         return n;
 129 }
 130
 131 static void
 132 handle_head_destroy(struct wl_listener *listener, void *data)
 133 {
 134         struct weston_head *head = data;
 135         struct weston_output *output;
 136
 137         wl_list_remove(&listener->link);
 138         free(listener);
 139
 140         output = weston_head_get_output(head);
 141
 142         /* On shutdown path, the output might be already gone. */
 143         if (!output)
 144                 return;
 145
 146         /* We're the last head */
 147         if (count_heads(output) <= 1)
 148                 weston_output_destroy(output);
 149 }
 150
 151 static void
 152 add_head_destroyed_listener(struct weston_head *head)
 153 {
 154         /* We already have a destroy listener */
 155         if (weston_head_get_destroy_listener(head, handle_head_destroy))
 156                 return;
 157
 158         struct wl_listener *listener = zalloc(sizeof *listener);
 159         if (!listener)
 160                 return;
 161
 162         listener->notify = handle_head_destroy;
 163         weston_head_add_destroy_listener(head, listener);
 164 }
 165
 166 static int
 167 drm_configure_output(struct ivi_output *output)
 168 {
 169         struct ivi_compositor *ivi = output->ivi;
 170         struct weston_config_section *section = output->config;
 171         enum weston_drm_backend_output_mode mode =
 172                 WESTON_DRM_BACKEND_OUTPUT_PREFERRED;
 173         char *modeline = NULL;
 174         char *gbm_format = NULL;
 175         char *seat = NULL;
 176
 177         if (section) {
 178                 char *m;
 179                 weston_config_section_get_string(section, "mode", &m, "preferred");
 180
 181                 /* This should have been handled earlier */
 182                 assert(strcmp(m, "off") != 0);
 183
 184                 if (ivi->cmdline.use_current_mode || strcmp(m, "current") == 0) {
 185                         mode = WESTON_DRM_BACKEND_OUTPUT_CURRENT;
 186                 } else if (strcmp(m, "preferred") != 0) {
 187                         modeline = m;
 188                         m = NULL;
 189                 }
 190                 free(m);
 191
 192                 weston_config_section_get_string(section, "gbm-format",
 193                                                  &gbm_format, NULL);
 194
 195                 weston_config_section_get_string(section, "seat", &seat, "");
 196         }
 197
 198         if (ivi->drm_api->set_mode(output->output, mode, modeline) < 0) {
 199                 weston_log("Cannot configure output using weston_drm_output_api.\n");
 200                 free(modeline);
 201                 return -1;
 202         }
 203         free(modeline);
 204
 205         ivi->drm_api->set_gbm_format(output->output, gbm_format);
 206         free(gbm_format);
 207
 208         ivi->drm_api->set_seat(output->output, seat);
 209         free(seat);
 210
 211         return 0;
 212 }
 213
 214 #define WINDOWED_DEFAULT_WIDTH 1024
 215 #define WINDOWED_DEFAULT_HEIGHT 768
 216
 217 static int
 218 windowed_configure_output(struct ivi_output *output)
 219 {
 220         struct ivi_compositor *ivi = output->ivi;
 221         struct weston_config_section *section = output->config;
 222         int width = WINDOWED_DEFAULT_WIDTH;
 223         int height = WINDOWED_DEFAULT_HEIGHT;
 224
 225         if (section) {
 226                 char *mode;
 227
 228                 weston_config_section_get_string(section, "mode", &mode, NULL);
 229                 if (!mode || sscanf(mode, "%dx%d", &width, &height) != 2) {
 230                         weston_log("Invalid mode for output %s. Using defaults.\n",
 231                                    output->name);
 232                         width = WINDOWED_DEFAULT_WIDTH;
 233                         height = WINDOWED_DEFAULT_HEIGHT;
 234                 }
 235                 free(mode);
 236         }
 237
 238         if (ivi->cmdline.width)
 239                 width = ivi->cmdline.width;
 240         if (ivi->cmdline.height)
 241                 height = ivi->cmdline.height;
 242         if (ivi->cmdline.scale)
 243                 weston_output_set_scale(output->output, ivi->cmdline.scale);
 244
 245         if (ivi->window_api->output_set_size(output->output, width, height) < 0) {
 246                 weston_log("Cannot configure output '%s' using weston_windowed_output_api.\n",
 247                            output->name);
 248                 return -1;
 249         }
 250
 251         return 0;
 252 }
 253
 254 static int
 255 parse_transform(const char *transform, uint32_t *out)
 256 {
 257         static const struct { const char *name; uint32_t token; } transforms[] = {
 258                 { "normal",     WL_OUTPUT_TRANSFORM_NORMAL },
 259                 { "90",         WL_OUTPUT_TRANSFORM_90 },
 260                 { "180",        WL_OUTPUT_TRANSFORM_180 },
 261                 { "270",        WL_OUTPUT_TRANSFORM_270 },
 262                 { "flipped",    WL_OUTPUT_TRANSFORM_FLIPPED },
 263                 { "flipped-90", WL_OUTPUT_TRANSFORM_FLIPPED_90 },
 264                 { "flipped-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 },
 265                 { "flipped-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 },
 266         };
 267
 268         for (size_t i = 0; i < ARRAY_LENGTH(transforms); i++)
 269                 if (strcmp(transforms[i].name, transform) == 0) {
 270                         *out = transforms[i].token;
 271                         return 0;
 272                 }
 273
 274         *out = WL_OUTPUT_TRANSFORM_NORMAL;
 275         return -1;
 276 }
 277
 278 static int
 279 configure_output(struct ivi_output *output)
 280 {
 281         struct ivi_compositor *ivi = output->ivi;
 282         struct weston_config_section *section = output->config;
 283         int32_t scale = 1;
 284         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
 285
 286         /*
 287          * This can happen with the wayland backend with 'sprawl'. The config
 288          * is hard-coded, so we don't need to do anything.
 289          */
 290         if (!ivi->drm_api && !ivi->window_api)
 291                 return 0;
 292
 293         if (section) {
 294                 char *t;
 295
 296                 weston_config_section_get_int(section, "scale", &scale, 1);
 297                 weston_config_section_get_string(section, "transform", &t, "normal");
 298                 if (parse_transform(t, &transform) < 0)
 299                         weston_log("Invalid transform \"%s\" for output %s\n",
 300                                    t, output->name);
 301                 free(t);
 302         }
 303
 304         weston_output_set_scale(output->output, scale);
 305         weston_output_set_transform(output->output, transform);
 306
 307         if (ivi->drm_api)
 308                 return drm_configure_output(output);
 309         else
 310                 return windowed_configure_output(output);
 311 }
 312
 313 /*
 314  * Reorgainizes the output's add array into two sections.
 315  * add[0..ret-1] are the heads that failed to get attached.
 316  * add[ret..add_len] are the heads that were successfully attached.
 317  *
 318  * The order between elements in each section is stable.
 319  */
 320 static size_t
 321 try_attach_heads(struct ivi_output *output)
 322 {
 323         size_t fail_len = 0;
 324
 325         for (size_t i = 0; i < output->add_len; ++i) {
 326                 if (weston_output_attach_head(output->output, output->add[i]) < 0) {
 327                         struct weston_head *tmp = output->add[i];
 328                         memmove(&output->add[fail_len + 1], output->add[fail_len],
 329                                 sizeof output->add[0] * (i - fail_len));
 330                         output->add[fail_len++] = tmp;
 331                 }
 332         }
 333
 334         return fail_len;
 335 }
 336
 337 /*
 338  * Like try_attach_heads, this reorganizes the output's add array into a failed
 339  * and successful section.
 340  * i is the number of heads that already failed the previous step.
 341  */
 342 static size_t
 343 try_enable_output(struct ivi_output *output, size_t i)
 344 {
 345         for (; i < output->add_len; ++i) {
 346                 struct weston_head *head;
 347
 348                 if (weston_output_enable(output->output) == 0)
 349                         break;
 350
 351                 head = output->add[output->add_len - 1];
 352                 memmove(&output->add[i + 1], &output->add[i],
 353                         sizeof output->add[0] * (output->add_len - i));
 354                 output->add[i] = head;
 355
 356                 weston_head_detach(head);
 357         }
 358
 359         return i;
 360 }
 361
 362 static int
 363 try_attach_enable_heads(struct ivi_output *output)
 364 {
 365         size_t fail_len;
 366         assert(!output->output->enabled);
 367
 368         fail_len = try_attach_heads(output);
 369
 370         if (configure_output(output) < 0)
 371                 return -1;
 372
 373         fail_len = try_enable_output(output, fail_len);
 374
 375         /* All heads failed to be attached */
 376         if (fail_len == output->add_len)
 377                 return -1;
 378
 379         /* For each successful head attached */
 380         for (size_t i = fail_len; i < output->add_len; ++i)
 381                 add_head_destroyed_listener(output->add[i]);
 382
 383         output->add_len = fail_len;
 384         return 0;
 385 }
 386
 387 static int
 388 process_output(struct ivi_output *output)
 389 {
 390         if (output->output->enabled) {
 391                 output->add_len = try_attach_heads(output);
 392                 return output->add_len == 0 ? 0 : -1;
 393         }
 394
 395         return try_attach_enable_heads(output);
 396 }
 397
 398 static void
 399 head_disable(struct ivi_compositor *ivi, struct weston_head *head)
 400 {
 401         struct weston_output *output;
 402         struct ivi_output *ivi_output;
 403         struct wl_listener *listener;
 404
 405         output = weston_head_get_output(head);
 406         assert(output);
 407
 408         listener = weston_output_get_destroy_listener(output,
 409                                                       handle_output_destroy);
 410         assert(listener);
 411
 412         ivi_output = wl_container_of(listener, ivi_output, output_destroy);
 413         assert(ivi_output->output == output);
 414
 415         weston_head_detach(head);
 416         if (count_heads(ivi_output->output) == 0) {
 417                 weston_output_disable(ivi_output->output);
 418         }
 419 }
 420
 421 static struct weston_config_section *
 422 find_controlling_output_config(struct weston_config *config,
 423                                const char *name)
 424 {
 425         struct weston_config_section *section;
 426         char *same_as;
 427         int depth = 0;
 428
 429         same_as = strdup(name);
 430         do {
 431                 section = weston_config_get_section(config, "output",
 432                                                     "name", same_as);
 433                 if (!section && depth > 0)
 434                         weston_log("Configuration error: output section reffered"
 435                                    "to by same-as=%s not found.\n", same_as);
 436                 free(same_as);
 437
 438                 if (!section)
 439                         return NULL;
 440
 441                 if (depth++ > 8) {
 442                         weston_log("Configuration error: same-as nested too "
 443                                    "deep for output '%s'.\n", name);
 444                         return NULL;
 445                 }
 446
 447                 weston_config_section_get_string(section, "same-as",
 448                                                  &same_as, NULL);
 449         } while (same_as);
 450
 451         return section;
 452 }
 453
 454 static void
 455 head_prepare_enable(struct ivi_compositor *ivi, struct weston_head *head)
 456 {
 457         const char *name = weston_head_get_name(head);
 458         struct weston_config_section *section;
 459         struct ivi_output *output;
 460         char *output_name = NULL;
 461
 462         section = find_controlling_output_config(ivi->config, name);
 463         if (section) {
 464                 char *mode;
 465
 466                 weston_config_section_get_string(section, "mode", &mode, NULL);
 467                 if (mode && strcmp(mode, "off") == 0) {
 468                         free(mode);
 469                         return;
 470                 }
 471                 free(mode);
 472
 473                 weston_config_section_get_string(section, "name",
 474                                                  &output_name, NULL);
 475         } else {
 476                 output_name = strdup(name);
 477         }
 478
 479         if (!output_name)
 480                 return;
 481
 482         output = ivi_ensure_output(ivi, output_name, section);
 483         if (!output)
 484                 return;
 485
 486         if (output->add_len >= ARRAY_LENGTH(output->add))
 487                 return;
 488
 489         output->add[output->add_len++] = head;
 490 }
 491
 492 static void
 493 heads_changed(struct wl_listener *listener, void *arg)
 494 {
 495         struct weston_compositor *compositor = arg;
 496         struct weston_head *head = NULL;
 497         struct ivi_compositor *ivi = to_ivi_compositor(compositor);
 498         struct ivi_output *output;
 499
 500         while ((head = weston_compositor_iterate_heads(ivi->compositor, head))) {
 501                 bool connected = weston_head_is_connected(head);
 502                 bool enabled = weston_head_is_enabled(head);
 503                 bool changed = weston_head_is_device_changed(head);
 504                 bool non_desktop = weston_head_is_non_desktop(head);
 505
 506                 if (connected && !enabled && !non_desktop)
 507                         head_prepare_enable(ivi, head);
 508                 else if (!connected && enabled)
 509                         head_disable(ivi, head);
 510                 else if (enabled && changed)
 511                         weston_log("Detected a monitor change on head '%s', "
 512                                    "not bothering to do anything about it.\n",
 513                                    weston_head_get_name(head));
 514
 515                 weston_head_reset_device_changed(head);
 516         }
 517
 518         wl_list_for_each(output, &ivi->outputs, link) {
 519                 if (output->add_len == 0)
 520                         continue;
 521
 522                 if (process_output(output) < 0) {
 523                         output->add_len = 0;
 524                         ivi->init_failed = true;
 525                 }
 526         }
 527 }
 528
 529 static int
 530 load_drm_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 531 {
 532         struct weston_drm_backend_config config = {
 533                 .base = {
 534                         .struct_version = WESTON_DRM_BACKEND_CONFIG_VERSION,
 535                         .struct_size = sizeof config,
 536                 },
 537         };
 538         struct weston_config_section *section;
 539         int use_current_mode = 0;
 540         int use_pixman = 0;
 541         int use_shadow;
 542         int ret;
 543
 544         const struct weston_option options[] = {
 545                 { WESTON_OPTION_STRING, "seat", 0, &config.seat_id },
 546                 { WESTON_OPTION_INTEGER, "tty", 0, &config.tty },
 547                 { WESTON_OPTION_STRING, "drm-device", 0, &config.specific_device },
 548                 { WESTON_OPTION_BOOLEAN, "current-mode", 0, &use_current_mode },
 549                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman },
 550         };
 551
 552         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 553         config.use_pixman = use_pixman;
 554         ivi->cmdline.use_current_mode = use_current_mode;
 555
 556         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
 557         weston_config_section_get_string(section, "gbm-format",
 558                                          &config.gbm_format, NULL);
 559         weston_config_section_get_uint(section, "pageflip-timeout",
 560                                        &config.pageflip_timeout, 0);
 561         weston_config_section_get_bool(section, "pixman-shadow", &use_shadow, 1);
 562         config.use_pixman_shadow = use_shadow;
 563
 564         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_DRM,
 565                                              &config.base);
 566         if (ret < 0)
 567                 return ret;
 568
 569         ivi->drm_api = weston_drm_output_get_api(ivi->compositor);
 570         if (!ivi->drm_api) {
 571                 weston_log("Cannot use drm output api.\n");
 572                 ret = -1;
 573                 goto error;
 574         }
 575
 576 error:
 577         free(config.gbm_format);
 578         free(config.seat_id);
 579         return ret;
 580 }
 581
 582 static void
 583 windowed_parse_common_options(struct ivi_compositor *ivi, int *argc, char *argv[],
 584                               bool *use_pixman, bool *fullscreen, int *output_count)
 585 {
 586         struct weston_config_section *section;
 587         int pixman;
 588         int fs = 0;
 589
 590         const struct weston_option options[] = {
 591                 { WESTON_OPTION_INTEGER, "width", 0, &ivi->cmdline.width },
 592                 { WESTON_OPTION_INTEGER, "height", 0, &ivi->cmdline.height },
 593                 { WESTON_OPTION_INTEGER, "scale", 0, &ivi->cmdline.scale },
 594                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &pixman },
 595                 { WESTON_OPTION_BOOLEAN, "fullscreen", 0, &fs },
 596                 { WESTON_OPTION_INTEGER, "output-count", 0, output_count },
 597         };
 598
 599         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
 600         weston_config_section_get_bool(section, "use-pixman", &pixman, 0);
 601
 602         *output_count = 1;
 603         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 604         *use_pixman = pixman;
 605         *fullscreen = fs;
 606 }
 607
 608 static int
 609 windowed_create_outputs(struct ivi_compositor *ivi, int output_count,
 610                         const char *match_prefix, const char *name_prefix)
 611 {
 612         struct weston_config_section *section = NULL;
 613         const char *section_name;
 614         char *default_output = NULL;
 615         int i = 0;
 616         size_t match_len = strlen(match_prefix);
 617
 618         while (weston_config_next_section(ivi->config, &section, &section_name)) {
 619                 char *output_name;
 620
 621                 if (i >= output_count)
 622                         break;
 623
 624                 if (strcmp(section_name, "output") != 0)
 625                         continue;
 626
 627                 weston_config_section_get_string(section, "name", &output_name, NULL);
 628                 if (output_name == NULL)
 629                         continue;
 630                 if (strncmp(output_name, match_prefix, match_len) != 0) {
 631                         free(output_name);
 632                         continue;
 633                 }
 634
 635                 if (ivi->window_api->create_head(ivi->compositor, output_name) < 0) {
 636                         free(output_name);
 637                         return -1;
 638                 }
 639
 640                 free(output_name);
 641                 ++i;
 642         }
 643
 644         for (; i < output_count; ++i) {
 645                 if (asprintf(&default_output, "%s%d", name_prefix, i) < 0)
 646                         return -1;
 647
 648                 if (ivi->window_api->create_head(ivi->compositor, default_output) < 0) {
 649                         free(default_output);
 650                         return -1;
 651                 }
 652
 653                 free(default_output);
 654         }
 655
 656         return 0;
 657 }
 658
 659 static int
 660 load_wayland_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 661 {
 662         struct weston_wayland_backend_config config = {
 663                 .base = {
 664                         .struct_version = WESTON_WAYLAND_BACKEND_CONFIG_VERSION,
 665                         .struct_size = sizeof config,
 666                 },
 667         };
 668         struct weston_config_section *section;
 669         int sprawl = 0;
 670         int output_count;
 671         int ret;
 672
 673         const struct weston_option options[] = {
 674                 { WESTON_OPTION_STRING, "display", 0, &config.display_name },
 675                 { WESTON_OPTION_STRING, "sprawl", 0, &sprawl },
 676         };
 677
 678         windowed_parse_common_options(ivi, argc, argv, &config.use_pixman,
 679                                       &config.fullscreen, &output_count);
 680
 681         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 682         config.sprawl = sprawl;
 683
 684         section = weston_config_get_section(ivi->config, "shell", NULL, NULL);
 685         weston_config_section_get_string(section, "cursor-theme",
 686                                          &config.cursor_theme, NULL);
 687         weston_config_section_get_int(section, "cursor-size",
 688                                       &config.cursor_size, 32);
 689
 690         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_WAYLAND,
 691                                              &config.base);
 692
 693         free(config.cursor_theme);
 694         free(config.display_name);
 695
 696         if (ret < 0)
 697                 return ret;
 698
 699         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
 700
 701         /*
 702          * We will just assume if load_backend() finished cleanly and
 703          * windowed_output_api is not present that wayland backend is started
 704          * with --sprawl or runs on fullscreen-shell. In this case, all values
 705          * are hardcoded, so nothing can be configured; simply create and
 706          * enable an output.
 707          */
 708         if (ivi->window_api == NULL)
 709                 return 0;
 710
 711         return windowed_create_outputs(ivi, output_count, "WL", "wayland");
 712 }
 713
 714 #ifdef HAVE_BACKEND_X11
 715 static int
 716 load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 717 {
 718         struct weston_x11_backend_config config = {
 719                 .base = {
 720                         .struct_version = WESTON_X11_BACKEND_CONFIG_VERSION,
 721                         .struct_size = sizeof config,
 722                 },
 723         };
 724         int no_input = 0;
 725         int output_count;
 726         int ret;
 727
 728         const struct weston_option options[] = {
 729                { WESTON_OPTION_BOOLEAN, "no-input", 0, &no_input },
 730         };
 731
 732         windowed_parse_common_options(ivi, argc, argv, &config.use_pixman,
 733                                       &config.fullscreen, &output_count);
 734
 735         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 736         config.no_input = no_input;
 737
 738         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_X11,
 739                                              &config.base);
 740
 741         if (ret < 0)
 742                 return ret;
 743
 744         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
 745         if (!ivi->window_api) {
 746                 weston_log("Cannot use weston_windowed_output_api.\n");
 747                 return -1;
 748         }
 749
 750         return windowed_create_outputs(ivi, output_count, "X", "screen");
 751 }
 752 #else
 753 static int
 754 load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 755 {
 756         return -1;
 757 }
 758 #endif
 759
 760 static int
 761 load_backend(struct ivi_compositor *ivi, const char *backend,
 762              int *argc, char *argv[])
 763 {
 764         if (strcmp(backend, "drm-backend.so") == 0) {
 765                 return load_drm_backend(ivi, argc, argv);
 766         } else if (strcmp(backend, "wayland-backend.so") == 0) {
 767                 return load_wayland_backend(ivi, argc, argv);
 768         } else if (strcmp(backend, "x11-backend.so") == 0) {
 769                 return load_x11_backend(ivi, argc, argv);
 770         }
 771
 772         weston_log("fatal: unknown backend '%s'.\n", backend);
 773         return -1;
 774 }
 775
 776 static char *
 777 choose_default_backend(void)
 778 {
 779         char *backend = NULL;
 780
 781         if (getenv("WAYLAND_DISPLAY") || getenv("WAYLAND_SOCKET"))
 782                 backend = strdup("wayland-backend.so");
 783         else if (getenv("DISPLAY"))
 784                 backend = strdup("x11-backend.so");
 785         else
 786                 backend = strdup("drm-backend.so");
 787
 788         return backend;
 789 }
 790
 791 static int
 792 compositor_init_config(struct weston_compositor *compositor,
 793                        struct weston_config *config)
 794 {
 795         struct xkb_rule_names xkb_names;
 796         struct weston_config_section *section;
 797         int repaint_msec;
 798         int vt_switching;
 799         int require_input;
 800
 801         /* agl-compositor.ini [keyboard] */
 802         section = weston_config_get_section(config, "keyboard", NULL, NULL);
 803         weston_config_section_get_string(section, "keymap_rules",
 804                                          (char **) &xkb_names.rules, NULL);
 805         weston_config_section_get_string(section, "keymap_model",
 806                                          (char **) &xkb_names.model, NULL);
 807         weston_config_section_get_string(section, "keymap_layout",
 808                                          (char **) &xkb_names.layout, NULL);
 809         weston_config_section_get_string(section, "keymap_variant",
 810                                          (char **) &xkb_names.variant, NULL);
 811         weston_config_section_get_string(section, "keymap_options",
 812                                          (char **) &xkb_names.options, NULL);
 813
 814         if (weston_compositor_set_xkb_rule_names(compositor, &xkb_names) < 0)
 815                 return -1;
 816
 817         weston_config_section_get_int(section, "repeat-rate",
 818                                       &compositor->kb_repeat_rate, 40);
 819         weston_config_section_get_int(section, "repeat-delay",
 820                                       &compositor->kb_repeat_delay, 400);
 821
 822         weston_config_section_get_bool(section, "vt-switching",
 823                                        &vt_switching, true);
 824         compositor->vt_switching = vt_switching;
 825
 826         /* agl-compositor.ini [core] */
 827         section = weston_config_get_section(config, "core", NULL, NULL);
 828
 829         weston_config_section_get_bool(section, "require-input", &require_input, true);
 830         compositor->require_input = require_input;
 831
 832         weston_config_section_get_int(section, "repaint-window", &repaint_msec,
 833                                       compositor->repaint_msec);
 834         if (repaint_msec < -10 || repaint_msec > 1000) {
 835                 weston_log("Invalid repaint_window value in config: %d\n",
 836                            repaint_msec);
 837         } else {
 838                 compositor->repaint_msec = repaint_msec;
 839         }
 840         weston_log("Output repaint window is %d ms maximum.\n",
 841                    compositor->repaint_msec);
 842
 843         return 0;
 844 }
 845
 846 struct ivi_surface *
 847 to_ivi_surface(struct weston_surface *surface)
 848 {
 849         struct weston_desktop_surface *dsurface;
 850
 851         dsurface = weston_surface_get_desktop_surface(surface);
 852         if (!dsurface)
 853                 return NULL;
 854
 855         return weston_desktop_surface_get_user_data(dsurface);
 856 }
 857
 858 static void
 859 activate_binding(struct weston_seat *seat,
 860                  struct weston_view *focus_view)
 861 {
 862         struct weston_surface *focus = focus_view->surface;
 863         struct weston_surface *main_surface =
 864                 weston_surface_get_main_surface(focus);
 865         struct ivi_surface *surface;
 866
 867         surface = to_ivi_surface(main_surface);
 868         if (!surface)
 869                 return;
 870
 871         weston_seat_set_keyboard_focus(seat, focus);
 872 }
 873
 874 static void
 875 click_to_activate_binding(struct weston_pointer *pointer,
 876                           const struct timespec *time,
 877                           uint32_t button, void *data)
 878 {
 879         if (pointer->grab != &pointer->default_grab)
 880                 return;
 881         if (pointer->focus == NULL)
 882                 return;
 883
 884         activate_binding(pointer->seat, pointer->focus);
 885 }
 886
 887 static void
 888 touch_to_activate_binding(struct weston_touch *touch,
 889                           const struct timespec *time,
 890                           void *data)
 891 {
 892         if (touch->grab != &touch->default_grab)
 893                 return;
 894         if (touch->focus == NULL)
 895                 return;
 896
 897         activate_binding(touch->seat, touch->focus);
 898 }
 899
 900 static void
 901 add_bindings(struct weston_compositor *compositor)
 902 {
 903         weston_compositor_add_button_binding(compositor, BTN_LEFT, 0,
 904                                              click_to_activate_binding,
 905                                              NULL);
 906         weston_compositor_add_button_binding(compositor, BTN_RIGHT, 0,
 907                                              click_to_activate_binding,
 908                                              NULL);
 909         weston_compositor_add_touch_binding(compositor, 0,
 910                                             touch_to_activate_binding,
 911                                             NULL);
 912 }
 913
 914 static int
 915 create_listening_socket(struct wl_display *display, const char *socket_name)
 916 {
 917         if (socket_name) {
 918                 if (wl_display_add_socket(display, socket_name)) {
 919                         weston_log("fatal: failed to add socket: %s\n",
 920                                    strerror(errno));
 921                         return -1;
 922                 }
 923         } else {
 924                 socket_name = wl_display_add_socket_auto(display);
 925                 if (!socket_name) {
 926                         weston_log("fatal: failed to add socket: %s\n",
 927                                    strerror(errno));
 928                         return -1;
 929                 }
 930         }
 931
 932         setenv("WAYLAND_DISPLAY", socket_name, 1);
 933
 934         return 0;
 935 }
 936
 937 static bool
 938 global_filter(const struct wl_client *client, const struct wl_global *global,
 939               void *data)
 940 {
 941         return true;
 942 }
 943
 944 static int
 945 load_config(struct weston_config **config, bool no_config,
 946             const char *config_file)
 947 {
 948         const char *file = "agl-compositor.ini";
 949         const char *full_path;
 950
 951         if (config_file)
 952                 file = config_file;
 953
 954         if (!no_config)
 955                 *config = weston_config_parse(file);
 956
 957         if (*config) {
 958                 full_path = weston_config_get_full_path(*config);
 959
 960                 weston_log("Using config file '%s'.\n", full_path);
 961                 setenv(WESTON_CONFIG_FILE_ENV_VAR, full_path, 1);
 962
 963                 return 0;
 964         }
 965
 966         if (config_file && !no_config) {
 967                 weston_log("fatal: error opening or reading config file '%s'.\n",
 968                         config_file);
 969
 970                 return -1;
 971         }
 972
 973         weston_log("Starting with no config file.\n");
 974         setenv(WESTON_CONFIG_FILE_ENV_VAR, "", 1);
 975
 976         return 0;
 977 }
 978
 979 static FILE *logfile;
 980 //static struct weston_log_scope *log_scope;
 981 //static struct weston_log_scope *protocol_scope;
 982
 983 static int
 984 log_timestamp(void)
 985 {
 986         static int cached_tm_mday = -1;
 987         struct timespec ts;
 988         struct tm brokendown_time;
 989         char buf[128];
 990
 991         clock_gettime(CLOCK_REALTIME, &ts);
 992         if (!localtime_r(&ts.tv_sec, &brokendown_time))
 993                 return fprintf(logfile, "[(NULL)localtime] ");
 994
 995         if (brokendown_time.tm_mday != cached_tm_mday) {
 996                 strftime(buf, sizeof buf, "%Y-%m-%d %Z", &brokendown_time);
 997                 fprintf(logfile, "Date: %s\n", buf);
 998
 999                 cached_tm_mday = brokendown_time.tm_mday;
1000         }
1001
1002         strftime(buf, sizeof buf, "%H:%M:%S", &brokendown_time);
1003
1004         return fprintf(logfile, "[%s.%03ld] ", buf, ts.tv_nsec / 1000000);
1005 }
1006
1007 static void
1008 custom_handler(const char *fmt, va_list arg)
1009 {
1010         log_timestamp();
1011         fprintf(logfile, "libwayland: ");
1012         vfprintf(logfile, fmt, arg);
1013 }
1014
1015 static void
1016 log_file_open(const char *filename)
1017 {
1018         wl_log_set_handler_server(custom_handler);
1019
1020         if (filename)
1021                 logfile = fopen(filename, "a");
1022
1023         if (!logfile) {
1024                 logfile = stderr;
1025         } else {
1026                 os_fd_set_cloexec(fileno(logfile));
1027                 setvbuf(logfile, NULL, _IOLBF, 256);
1028         }
1029 }
1030
1031 static void
1032 log_file_close(void)
1033 {
1034         if (logfile && logfile != stderr)
1035                 fclose(logfile);
1036         logfile = stderr;
1037 }
1038
1039 static int
1040 vlog(const char *fmt, va_list ap)
1041 {
1042         int l;
1043
1044         l = log_timestamp();
1045         l += vfprintf(logfile, fmt, ap);
1046
1047         return l;
1048 }
1049
1050 static int
1051 vlog_continue(const char *fmt, va_list ap)
1052 {
1053         return vfprintf(logfile, fmt, ap);
1054 }
1055
1056 static int
1057 on_term_signal(int signo, void *data)
1058 {
1059         struct wl_display *display = data;
1060
1061         weston_log("caught signal %d\n", signo);
1062         wl_display_terminate(display);
1063
1064         return 1;
1065 }
1066
1067 static void
1068 handle_exit(struct weston_compositor *compositor)
1069 {
1070         wl_display_terminate(compositor->wl_display);
1071 }
1072
1073 static void
1074 usage(int error_code)
1075 {
1076         FILE *out = error_code == EXIT_SUCCESS ? stdout : stderr;
1077         fprintf(out,
1078                 "Usage: agl-compositor [OPTIONS]\n"
1079                 "\n"
1080                 "This is " PACKAGE_STRING ", the reference compositor for\n"
1081                 "Automotive Grade Linux. Weston-ivi supports multiple backends, and depending\n"
1082                 "on which backend is in use different options will be accepted.\n"
1083                 "\n"
1084                 "Core options:\n"
1085                 "\n"
1086                 "  --version\t\tPrint agl-compositor version\n"
1087                 "  -B, --backend=MODULE\tBackend module, one of\n"
1088                         "\t\t\t\tdrm-backend.so\n"
1089                         "\t\t\t\twayland-backend.so\n"
1090                         "\t\t\t\tx11-backend.so\n"
1091                 "  -S, --socket=NAME\tName of socket to listen on\n"
1092                 "  --log=FILE\t\tLog to the given file\n"
1093                 "  -c, --config=FILE\tConfig file to load, defaults to agl-compositor.ini\n"
1094                 "  --no-config\t\tDo not read agl-compositor.ini\n"
1095                 "  --debug\t\tEnable debug extension\n"
1096                 "  -h, --help\t\tThis help message\n"
1097                 "\n");
1098         exit(error_code);
1099 }
1100
1101 static void
1102 ivi_compositor_get_quirks(struct ivi_compositor *ivi)
1103 {
1104         struct weston_config_section *section;
1105
1106         if (!ivi->config)
1107                 return;
1108
1109         section = weston_config_get_section(ivi->config, "shell", NULL, NULL);
1110         weston_config_section_get_bool(section, "activate-by-default",
1111                         &ivi->quirks.activate_apps_by_default, 0);
1112
1113 }
1114
1115 int main(int argc, char *argv[])
1116 {
1117         struct ivi_compositor ivi = { 0 };
1118         struct wl_display *display = NULL;
1119         struct wl_event_loop *loop;
1120         struct wl_event_source *signals[3] = { 0 };
1121         struct weston_config_section *section;
1122         /* Command line options */
1123         char *backend = NULL;
1124         char *socket_name = NULL;
1125         char *log = NULL;
1126         int help = 0;
1127         int version = 0;
1128         int no_config = 0;
1129         char *config_file = NULL;
1130         int debug_protocol = 0;
1131
1132         const struct weston_option core_options[] = {
1133                 { WESTON_OPTION_STRING, "backend", 'B', &backend },
1134                 { WESTON_OPTION_STRING, "socket", 'S', &socket_name },
1135                 { WESTON_OPTION_STRING, "log", 0, &log },
1136                 { WESTON_OPTION_BOOLEAN, "help", 'h', &help },
1137                 { WESTON_OPTION_BOOLEAN, "version", 0, &version },
1138                 { WESTON_OPTION_BOOLEAN, "no-config", 0, &no_config },
1139                 { WESTON_OPTION_STRING, "config", 'c', &config_file },
1140                 { WESTON_OPTION_BOOLEAN, "debug", 0, &debug_protocol },
1141         };
1142
1143         wl_list_init(&ivi.outputs);
1144         wl_list_init(&ivi.surfaces);
1145         wl_list_init(&ivi.pending_surfaces);
1146
1147         /* Prevent any clients we spawn getting our stdin */
1148         os_fd_set_cloexec(STDIN_FILENO);
1149
1150         parse_options(core_options, ARRAY_LENGTH(core_options), &argc, argv);
1151
1152         if (help)
1153                 usage(EXIT_SUCCESS);
1154
1155         if (version) {
1156                 printf(PACKAGE_STRING "\n");
1157                 return EXIT_SUCCESS;
1158         }
1159
1160         log_file_open(log);
1161         weston_log_set_handler(vlog, vlog_continue);
1162
1163         if (load_config(&ivi.config, no_config, config_file) < 0)
1164                 goto error_signals;
1165         section = weston_config_get_section(ivi.config, "core", NULL, NULL);
1166         if (!backend) {
1167                 weston_config_section_get_string(section, "backend", &backend,
1168                                                  NULL);
1169                 if (!backend)
1170                         backend = choose_default_backend();
1171         }
1172
1173         ivi_compositor_get_quirks(&ivi);
1174
1175         display = wl_display_create();
1176         loop = wl_display_get_event_loop(display);
1177
1178         wl_display_set_global_filter(display,
1179                                      global_filter, &ivi);
1180
1181         /* Register signal handlers so we shut down cleanly */
1182
1183         signals[0] = wl_event_loop_add_signal(loop, SIGTERM, on_term_signal,
1184                                               display);
1185         signals[1] = wl_event_loop_add_signal(loop, SIGINT, on_term_signal,
1186                                               display);
1187         signals[2] = wl_event_loop_add_signal(loop, SIGQUIT, on_term_signal,
1188                                               display);
1189
1190         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
1191                 if (!signals[i])
1192                         goto error_signals;
1193
1194         ivi.compositor = weston_compositor_create(display, &ivi);
1195         if (!ivi.compositor) {
1196                 weston_log("fatal: failed to create compositor.\n");
1197                 goto error_signals;
1198         }
1199
1200         if (compositor_init_config(ivi.compositor, ivi.config) < 0)
1201                 goto error_compositor;
1202
1203         if (load_backend(&ivi, backend, &argc, argv) < 0) {
1204                 weston_log("fatal: failed to create compositor backend.\n");
1205                 goto error_compositor;
1206         }
1207
1208         ivi.heads_changed.notify = heads_changed;
1209         weston_compositor_add_heads_changed_listener(ivi.compositor,
1210                                                      &ivi.heads_changed);
1211
1212         if (ivi_desktop_init(&ivi) < 0)
1213                 goto error_compositor;
1214
1215         if (ivi_shell_init(&ivi) < 0)
1216                 goto error_compositor;
1217
1218         add_bindings(ivi.compositor);
1219
1220         weston_compositor_flush_heads_changed(ivi.compositor);
1221
1222         ivi_shell_init_black_fs(&ivi);
1223
1224         if (create_listening_socket(display, socket_name) < 0)
1225                 goto error_compositor;
1226
1227         ivi.compositor->exit = handle_exit;
1228
1229         weston_compositor_wake(ivi.compositor);
1230
1231         ivi_shell_create_global(&ivi);
1232         ivi_launch_shell_client(&ivi);
1233         ivi_agl_systemd_notify(&ivi);
1234
1235         wl_display_run(display);
1236
1237         wl_display_destroy_clients(display);
1238
1239 error_compositor:
1240         weston_compositor_destroy(ivi.compositor);
1241
1242 error_signals:
1243         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
1244                 if (signals[i])
1245                         wl_event_source_remove(signals[i]);
1246
1247         wl_display_destroy(display);
1248
1249         log_file_close();
1250         if (ivi.config)
1251                 weston_config_destroy(ivi.config);
1252 }