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 #include "policy.h"
  28
  29 #include <assert.h>
  30 #include <errno.h>
  31 #include <signal.h>
  32 #include <stdarg.h>
  33 #include <stdbool.h>
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <unistd.h>
  38 #include <linux/input.h>
  39
  40 #include <libweston/backend-drm.h>
  41 #include <libweston/backend-wayland.h>
  42 #ifdef HAVE_BACKEND_X11
  43 #include <libweston/backend-x11.h>
  44 #endif
  45 #include <libweston/libweston.h>
  46 #include <libweston/windowed-output-api.h>
  47 #include <libweston/config-parser.h>
  48 #include <libweston/weston-log.h>
  49 #include <weston/weston.h>
  50
  51 #include "shared/os-compatibility.h"
  52 #include "shared/helpers.h"
  53
  54 #include "agl-shell-server-protocol.h"
  55
  56 static int cached_tm_mday = -1;
  57 static struct weston_log_scope *log_scope;
  58
  59 struct ivi_compositor *
  60 to_ivi_compositor(struct weston_compositor *ec)
  61 {
  62         return weston_compositor_get_user_data(ec);
  63 }
  64
  65 static void
  66 handle_output_destroy(struct wl_listener *listener, void *data)
  67 {
  68         struct ivi_output *output;
  69
  70         output = wl_container_of(listener, output, output_destroy);
  71         assert(output->output == data);
  72
  73         output->output = NULL;
  74         wl_list_remove(&output->output_destroy.link);
  75 }
  76
  77 struct ivi_output *
  78 to_ivi_output(struct weston_output *o)
  79 {
  80         struct wl_listener *listener;
  81         struct ivi_output *output;
  82
  83         listener = weston_output_get_destroy_listener(o, handle_output_destroy);
  84         output = wl_container_of(listener, output, output_destroy);
  85
  86         return output;
  87 }
  88
  89 static void
  90 ivi_output_configure_app_id(struct ivi_output *ivi_output)
  91 {
  92         if (ivi_output->config) {
  93                 if (ivi_output->app_id != NULL)
  94                         return;
  95
  96                 weston_config_section_get_string(ivi_output->config,
  97                                                  "agl-shell-app-id",
  98                                                  &ivi_output->app_id,
  99                                                  NULL);
 100         }
 101 }
 102
 103 static struct ivi_output *
 104 ivi_ensure_output(struct ivi_compositor *ivi, char *name,
 105                   struct weston_config_section *config)
 106 {
 107         struct ivi_output *output = NULL;
 108         wl_list_for_each(output, &ivi->outputs, link) {
 109                 if (strcmp(output->name, name) == 0) {
 110                         free(name);
 111                         return output;
 112                 }
 113         }
 114
 115         output = zalloc(sizeof *output);
 116         if (!output) {
 117                 free(name);
 118                 return NULL;
 119         }
 120
 121         output->ivi = ivi;
 122         output->name = name;
 123         output->config = config;
 124
 125         output->output = weston_compositor_create_output(ivi->compositor, name);
 126         if (!output->output) {
 127                 free(output->name);
 128                 free(output);
 129                 return NULL;
 130         }
 131
 132         output->output_destroy.notify = handle_output_destroy;
 133         weston_output_add_destroy_listener(output->output,
 134                                            &output->output_destroy);
 135
 136         wl_list_insert(&ivi->outputs, &output->link);
 137         ivi_output_configure_app_id(output);
 138         return output;
 139 }
 140
 141 static int
 142 count_heads(struct weston_output *output)
 143 {
 144         struct weston_head *iter = NULL;
 145         int n = 0;
 146
 147         while ((iter = weston_output_iterate_heads(output, iter)))
 148                 ++n;
 149
 150         return n;
 151 }
 152
 153 static void
 154 handle_head_destroy(struct wl_listener *listener, void *data)
 155 {
 156         struct weston_head *head = data;
 157         struct weston_output *output;
 158
 159         wl_list_remove(&listener->link);
 160         free(listener);
 161
 162         output = weston_head_get_output(head);
 163
 164         /* On shutdown path, the output might be already gone. */
 165         if (!output)
 166                 return;
 167
 168         /* We're the last head */
 169         if (count_heads(output) <= 1)
 170                 weston_output_destroy(output);
 171 }
 172
 173 static void
 174 add_head_destroyed_listener(struct weston_head *head)
 175 {
 176         /* We already have a destroy listener */
 177         if (weston_head_get_destroy_listener(head, handle_head_destroy))
 178                 return;
 179
 180         struct wl_listener *listener = zalloc(sizeof *listener);
 181         if (!listener)
 182                 return;
 183
 184         listener->notify = handle_head_destroy;
 185         weston_head_add_destroy_listener(head, listener);
 186 }
 187
 188 static int
 189 drm_configure_output(struct ivi_output *output)
 190 {
 191         struct ivi_compositor *ivi = output->ivi;
 192         struct weston_config_section *section = output->config;
 193         enum weston_drm_backend_output_mode mode =
 194                 WESTON_DRM_BACKEND_OUTPUT_PREFERRED;
 195         char *modeline = NULL;
 196         char *gbm_format = NULL;
 197         char *seat = NULL;
 198
 199         if (section) {
 200                 char *m;
 201                 weston_config_section_get_string(section, "mode", &m, "preferred");
 202
 203                 /* This should have been handled earlier */
 204                 assert(strcmp(m, "off") != 0);
 205
 206                 if (ivi->cmdline.use_current_mode || strcmp(m, "current") == 0) {
 207                         mode = WESTON_DRM_BACKEND_OUTPUT_CURRENT;
 208                 } else if (strcmp(m, "preferred") != 0) {
 209                         modeline = m;
 210                         m = NULL;
 211                 }
 212                 free(m);
 213
 214                 weston_config_section_get_string(section, "gbm-format",
 215                                                  &gbm_format, NULL);
 216
 217                 weston_config_section_get_string(section, "seat", &seat, "");
 218         }
 219
 220         if (ivi->drm_api->set_mode(output->output, mode, modeline) < 0) {
 221                 weston_log("Cannot configure output using weston_drm_output_api.\n");
 222                 free(modeline);
 223                 return -1;
 224         }
 225         free(modeline);
 226
 227         ivi->drm_api->set_gbm_format(output->output, gbm_format);
 228         free(gbm_format);
 229
 230         ivi->drm_api->set_seat(output->output, seat);
 231         free(seat);
 232
 233         return 0;
 234 }
 235
 236 #define WINDOWED_DEFAULT_WIDTH 1024
 237 #define WINDOWED_DEFAULT_HEIGHT 768
 238
 239 static int
 240 windowed_configure_output(struct ivi_output *output)
 241 {
 242         struct ivi_compositor *ivi = output->ivi;
 243         struct weston_config_section *section = output->config;
 244         int width = WINDOWED_DEFAULT_WIDTH;
 245         int height = WINDOWED_DEFAULT_HEIGHT;
 246
 247         if (section) {
 248                 char *mode;
 249
 250                 weston_config_section_get_string(section, "mode", &mode, NULL);
 251                 if (!mode || sscanf(mode, "%dx%d", &width, &height) != 2) {
 252                         weston_log("Invalid mode for output %s. Using defaults.\n",
 253                                    output->name);
 254                         width = WINDOWED_DEFAULT_WIDTH;
 255                         height = WINDOWED_DEFAULT_HEIGHT;
 256                 }
 257                 free(mode);
 258         }
 259
 260         if (ivi->cmdline.width)
 261                 width = ivi->cmdline.width;
 262         if (ivi->cmdline.height)
 263                 height = ivi->cmdline.height;
 264         if (ivi->cmdline.scale)
 265                 weston_output_set_scale(output->output, ivi->cmdline.scale);
 266
 267         if (ivi->window_api->output_set_size(output->output, width, height) < 0) {
 268                 weston_log("Cannot configure output '%s' using weston_windowed_output_api.\n",
 269                            output->name);
 270                 return -1;
 271         }
 272
 273         return 0;
 274 }
 275
 276 static int
 277 parse_transform(const char *transform, uint32_t *out)
 278 {
 279         static const struct { const char *name; uint32_t token; } transforms[] = {
 280                 { "normal",     WL_OUTPUT_TRANSFORM_NORMAL },
 281                 { "90",         WL_OUTPUT_TRANSFORM_90 },
 282                 { "180",        WL_OUTPUT_TRANSFORM_180 },
 283                 { "270",        WL_OUTPUT_TRANSFORM_270 },
 284                 { "flipped",    WL_OUTPUT_TRANSFORM_FLIPPED },
 285                 { "flipped-90", WL_OUTPUT_TRANSFORM_FLIPPED_90 },
 286                 { "flipped-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 },
 287                 { "flipped-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 },
 288         };
 289
 290         for (size_t i = 0; i < ARRAY_LENGTH(transforms); i++)
 291                 if (strcmp(transforms[i].name, transform) == 0) {
 292                         *out = transforms[i].token;
 293                         return 0;
 294                 }
 295
 296         *out = WL_OUTPUT_TRANSFORM_NORMAL;
 297         return -1;
 298 }
 299
 300 static int
 301 configure_output(struct ivi_output *output)
 302 {
 303         struct ivi_compositor *ivi = output->ivi;
 304         struct weston_config_section *section = output->config;
 305         int32_t scale = 1;
 306         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
 307
 308         /*
 309          * This can happen with the wayland backend with 'sprawl'. The config
 310          * is hard-coded, so we don't need to do anything.
 311          */
 312         if (!ivi->drm_api && !ivi->window_api)
 313                 return 0;
 314
 315         if (section) {
 316                 char *t;
 317
 318                 weston_config_section_get_int(section, "scale", &scale, 1);
 319                 weston_config_section_get_string(section, "transform", &t, "normal");
 320                 if (parse_transform(t, &transform) < 0)
 321                         weston_log("Invalid transform \"%s\" for output %s\n",
 322                                    t, output->name);
 323                 free(t);
 324         }
 325
 326         weston_output_set_scale(output->output, scale);
 327         weston_output_set_transform(output->output, transform);
 328
 329         if (ivi->drm_api)
 330                 return drm_configure_output(output);
 331         else
 332                 return windowed_configure_output(output);
 333 }
 334
 335 /*
 336  * Reorgainizes the output's add array into two sections.
 337  * add[0..ret-1] are the heads that failed to get attached.
 338  * add[ret..add_len] are the heads that were successfully attached.
 339  *
 340  * The order between elements in each section is stable.
 341  */
 342 static size_t
 343 try_attach_heads(struct ivi_output *output)
 344 {
 345         size_t fail_len = 0;
 346
 347         for (size_t i = 0; i < output->add_len; ++i) {
 348                 if (weston_output_attach_head(output->output, output->add[i]) < 0) {
 349                         struct weston_head *tmp = output->add[i];
 350                         memmove(&output->add[fail_len + 1], output->add[fail_len],
 351                                 sizeof output->add[0] * (i - fail_len));
 352                         output->add[fail_len++] = tmp;
 353                 }
 354         }
 355
 356         return fail_len;
 357 }
 358
 359 /*
 360  * Like try_attach_heads, this reorganizes the output's add array into a failed
 361  * and successful section.
 362  * i is the number of heads that already failed the previous step.
 363  */
 364 static size_t
 365 try_enable_output(struct ivi_output *output, size_t i)
 366 {
 367         for (; i < output->add_len; ++i) {
 368                 struct weston_head *head;
 369
 370                 if (weston_output_enable(output->output) == 0)
 371                         break;
 372
 373                 head = output->add[output->add_len - 1];
 374                 memmove(&output->add[i + 1], &output->add[i],
 375                         sizeof output->add[0] * (output->add_len - i));
 376                 output->add[i] = head;
 377
 378                 weston_head_detach(head);
 379         }
 380
 381         return i;
 382 }
 383
 384 static int
 385 try_attach_enable_heads(struct ivi_output *output)
 386 {
 387         size_t fail_len;
 388         assert(!output->output->enabled);
 389
 390         fail_len = try_attach_heads(output);
 391
 392         if (configure_output(output) < 0)
 393                 return -1;
 394
 395         fail_len = try_enable_output(output, fail_len);
 396
 397         /* All heads failed to be attached */
 398         if (fail_len == output->add_len)
 399                 return -1;
 400
 401         /* For each successful head attached */
 402         for (size_t i = fail_len; i < output->add_len; ++i)
 403                 add_head_destroyed_listener(output->add[i]);
 404
 405         output->add_len = fail_len;
 406         return 0;
 407 }
 408
 409 static int
 410 process_output(struct ivi_output *output)
 411 {
 412         if (output->output->enabled) {
 413                 output->add_len = try_attach_heads(output);
 414                 return output->add_len == 0 ? 0 : -1;
 415         }
 416
 417         return try_attach_enable_heads(output);
 418 }
 419
 420 static void
 421 head_disable(struct ivi_compositor *ivi, struct weston_head *head)
 422 {
 423         struct weston_output *output;
 424         struct ivi_output *ivi_output;
 425         struct wl_listener *listener;
 426
 427         output = weston_head_get_output(head);
 428         assert(output);
 429
 430         listener = weston_output_get_destroy_listener(output,
 431                                                       handle_output_destroy);
 432         assert(listener);
 433
 434         ivi_output = wl_container_of(listener, ivi_output, output_destroy);
 435         assert(ivi_output->output == output);
 436
 437         weston_head_detach(head);
 438         if (count_heads(ivi_output->output) == 0) {
 439                 weston_output_disable(ivi_output->output);
 440         }
 441 }
 442
 443 static struct weston_config_section *
 444 find_controlling_output_config(struct weston_config *config,
 445                                const char *name)
 446 {
 447         struct weston_config_section *section;
 448         char *same_as;
 449         int depth = 0;
 450
 451         same_as = strdup(name);
 452         do {
 453                 section = weston_config_get_section(config, "output",
 454                                                     "name", same_as);
 455                 if (!section && depth > 0)
 456                         weston_log("Configuration error: output section reffered"
 457                                    "to by same-as=%s not found.\n", same_as);
 458                 free(same_as);
 459
 460                 if (!section)
 461                         return NULL;
 462
 463                 if (depth++ > 8) {
 464                         weston_log("Configuration error: same-as nested too "
 465                                    "deep for output '%s'.\n", name);
 466                         return NULL;
 467                 }
 468
 469                 weston_config_section_get_string(section, "same-as",
 470                                                  &same_as, NULL);
 471         } while (same_as);
 472
 473         return section;
 474 }
 475
 476 static void
 477 head_prepare_enable(struct ivi_compositor *ivi, struct weston_head *head)
 478 {
 479         const char *name = weston_head_get_name(head);
 480         struct weston_config_section *section;
 481         struct ivi_output *output;
 482         char *output_name = NULL;
 483
 484         section = find_controlling_output_config(ivi->config, name);
 485         if (section) {
 486                 char *mode;
 487
 488                 weston_config_section_get_string(section, "mode", &mode, NULL);
 489                 if (mode && strcmp(mode, "off") == 0) {
 490                         free(mode);
 491                         return;
 492                 }
 493                 free(mode);
 494
 495                 weston_config_section_get_string(section, "name",
 496                                                  &output_name, NULL);
 497         } else {
 498                 output_name = strdup(name);
 499         }
 500
 501         if (!output_name)
 502                 return;
 503
 504         output = ivi_ensure_output(ivi, output_name, section);
 505         if (!output)
 506                 return;
 507
 508         if (output->add_len >= ARRAY_LENGTH(output->add))
 509                 return;
 510
 511         output->add[output->add_len++] = head;
 512 }
 513
 514 static void
 515 heads_changed(struct wl_listener *listener, void *arg)
 516 {
 517         struct weston_compositor *compositor = arg;
 518         struct weston_head *head = NULL;
 519         struct ivi_compositor *ivi = to_ivi_compositor(compositor);
 520         struct ivi_output *output;
 521
 522         while ((head = weston_compositor_iterate_heads(ivi->compositor, head))) {
 523                 bool connected = weston_head_is_connected(head);
 524                 bool enabled = weston_head_is_enabled(head);
 525                 bool changed = weston_head_is_device_changed(head);
 526                 bool non_desktop = weston_head_is_non_desktop(head);
 527
 528                 if (connected && !enabled && !non_desktop)
 529                         head_prepare_enable(ivi, head);
 530                 else if (!connected && enabled)
 531                         head_disable(ivi, head);
 532                 else if (enabled && changed)
 533                         weston_log("Detected a monitor change on head '%s', "
 534                                    "not bothering to do anything about it.\n",
 535                                    weston_head_get_name(head));
 536
 537                 weston_head_reset_device_changed(head);
 538         }
 539
 540         wl_list_for_each(output, &ivi->outputs, link) {
 541                 if (output->add_len == 0)
 542                         continue;
 543
 544                 if (process_output(output) < 0) {
 545                         output->add_len = 0;
 546                         ivi->init_failed = true;
 547                 }
 548         }
 549 }
 550
 551 static int
 552 load_drm_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 553 {
 554         struct weston_drm_backend_config config = {
 555                 .base = {
 556                         .struct_version = WESTON_DRM_BACKEND_CONFIG_VERSION,
 557                         .struct_size = sizeof config,
 558                 },
 559         };
 560         struct weston_config_section *section;
 561         int use_current_mode = 0;
 562         int use_pixman = 0;
 563         bool use_shadow;
 564         int ret;
 565
 566         const struct weston_option options[] = {
 567                 { WESTON_OPTION_STRING, "seat", 0, &config.seat_id },
 568                 { WESTON_OPTION_INTEGER, "tty", 0, &config.tty },
 569                 { WESTON_OPTION_STRING, "drm-device", 0, &config.specific_device },
 570                 { WESTON_OPTION_BOOLEAN, "current-mode", 0, &use_current_mode },
 571                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman },
 572         };
 573
 574         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 575         config.use_pixman = use_pixman;
 576         ivi->cmdline.use_current_mode = use_current_mode;
 577
 578         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
 579         weston_config_section_get_string(section, "gbm-format",
 580                                          &config.gbm_format, NULL);
 581         weston_config_section_get_uint(section, "pageflip-timeout",
 582                                        &config.pageflip_timeout, 0);
 583         weston_config_section_get_bool(section, "pixman-shadow", &use_shadow, 1);
 584         config.use_pixman_shadow = use_shadow;
 585
 586         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_DRM,
 587                                              &config.base);
 588         if (ret < 0)
 589                 return ret;
 590
 591         ivi->drm_api = weston_drm_output_get_api(ivi->compositor);
 592         if (!ivi->drm_api) {
 593                 weston_log("Cannot use drm output api.\n");
 594                 ret = -1;
 595                 goto error;
 596         }
 597
 598 error:
 599         free(config.gbm_format);
 600         free(config.seat_id);
 601         return ret;
 602 }
 603
 604 static void
 605 windowed_parse_common_options(struct ivi_compositor *ivi, int *argc, char *argv[],
 606                               bool *use_pixman, bool *fullscreen, int *output_count)
 607 {
 608         struct weston_config_section *section;
 609         bool pixman;
 610         int fs = 0;
 611
 612         const struct weston_option options[] = {
 613                 { WESTON_OPTION_INTEGER, "width", 0, &ivi->cmdline.width },
 614                 { WESTON_OPTION_INTEGER, "height", 0, &ivi->cmdline.height },
 615                 { WESTON_OPTION_INTEGER, "scale", 0, &ivi->cmdline.scale },
 616                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &pixman },
 617                 { WESTON_OPTION_BOOLEAN, "fullscreen", 0, &fs },
 618                 { WESTON_OPTION_INTEGER, "output-count", 0, output_count },
 619         };
 620
 621         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
 622         weston_config_section_get_bool(section, "use-pixman", &pixman, 0);
 623
 624         *output_count = 1;
 625         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 626         *use_pixman = pixman;
 627         *fullscreen = fs;
 628 }
 629
 630 static int
 631 windowed_create_outputs(struct ivi_compositor *ivi, int output_count,
 632                         const char *match_prefix, const char *name_prefix)
 633 {
 634         struct weston_config_section *section = NULL;
 635         const char *section_name;
 636         char *default_output = NULL;
 637         int i = 0;
 638         size_t match_len = strlen(match_prefix);
 639
 640         while (weston_config_next_section(ivi->config, &section, &section_name)) {
 641                 char *output_name;
 642
 643                 if (i >= output_count)
 644                         break;
 645
 646                 if (strcmp(section_name, "output") != 0)
 647                         continue;
 648
 649                 weston_config_section_get_string(section, "name", &output_name, NULL);
 650                 if (output_name == NULL)
 651                         continue;
 652                 if (strncmp(output_name, match_prefix, match_len) != 0) {
 653                         free(output_name);
 654                         continue;
 655                 }
 656
 657                 if (ivi->window_api->create_head(ivi->compositor, output_name) < 0) {
 658                         free(output_name);
 659                         return -1;
 660                 }
 661
 662                 free(output_name);
 663                 ++i;
 664         }
 665
 666         for (; i < output_count; ++i) {
 667                 if (asprintf(&default_output, "%s%d", name_prefix, i) < 0)
 668                         return -1;
 669
 670                 if (ivi->window_api->create_head(ivi->compositor, default_output) < 0) {
 671                         free(default_output);
 672                         return -1;
 673                 }
 674
 675                 free(default_output);
 676         }
 677
 678         return 0;
 679 }
 680
 681 static int
 682 load_wayland_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 683 {
 684         struct weston_wayland_backend_config config = {
 685                 .base = {
 686                         .struct_version = WESTON_WAYLAND_BACKEND_CONFIG_VERSION,
 687                         .struct_size = sizeof config,
 688                 },
 689         };
 690         struct weston_config_section *section;
 691         int sprawl = 0;
 692         int output_count;
 693         int ret;
 694
 695         const struct weston_option options[] = {
 696                 { WESTON_OPTION_STRING, "display", 0, &config.display_name },
 697                 { WESTON_OPTION_STRING, "sprawl", 0, &sprawl },
 698         };
 699
 700         windowed_parse_common_options(ivi, argc, argv, &config.use_pixman,
 701                                       &config.fullscreen, &output_count);
 702
 703         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 704         config.sprawl = sprawl;
 705
 706         section = weston_config_get_section(ivi->config, "shell", NULL, NULL);
 707         weston_config_section_get_string(section, "cursor-theme",
 708                                          &config.cursor_theme, NULL);
 709         weston_config_section_get_int(section, "cursor-size",
 710                                       &config.cursor_size, 32);
 711
 712         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_WAYLAND,
 713                                              &config.base);
 714
 715         free(config.cursor_theme);
 716         free(config.display_name);
 717
 718         if (ret < 0)
 719                 return ret;
 720
 721         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
 722
 723         /*
 724          * We will just assume if load_backend() finished cleanly and
 725          * windowed_output_api is not present that wayland backend is started
 726          * with --sprawl or runs on fullscreen-shell. In this case, all values
 727          * are hardcoded, so nothing can be configured; simply create and
 728          * enable an output.
 729          */
 730         if (ivi->window_api == NULL)
 731                 return 0;
 732
 733         return windowed_create_outputs(ivi, output_count, "WL", "wayland");
 734 }
 735
 736 #ifdef HAVE_BACKEND_X11
 737 static int
 738 load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 739 {
 740         struct weston_x11_backend_config config = {
 741                 .base = {
 742                         .struct_version = WESTON_X11_BACKEND_CONFIG_VERSION,
 743                         .struct_size = sizeof config,
 744                 },
 745         };
 746         int no_input = 0;
 747         int output_count;
 748         int ret;
 749
 750         const struct weston_option options[] = {
 751                { WESTON_OPTION_BOOLEAN, "no-input", 0, &no_input },
 752         };
 753
 754         windowed_parse_common_options(ivi, argc, argv, &config.use_pixman,
 755                                       &config.fullscreen, &output_count);
 756
 757         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 758         config.no_input = no_input;
 759
 760         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_X11,
 761                                              &config.base);
 762
 763         if (ret < 0)
 764                 return ret;
 765
 766         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
 767         if (!ivi->window_api) {
 768                 weston_log("Cannot use weston_windowed_output_api.\n");
 769                 return -1;
 770         }
 771
 772         return windowed_create_outputs(ivi, output_count, "X", "screen");
 773 }
 774 #else
 775 static int
 776 load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 777 {
 778         return -1;
 779 }
 780 #endif
 781
 782 static int
 783 load_backend(struct ivi_compositor *ivi, const char *backend,
 784              int *argc, char *argv[])
 785 {
 786         if (strcmp(backend, "drm-backend.so") == 0) {
 787                 return load_drm_backend(ivi, argc, argv);
 788         } else if (strcmp(backend, "wayland-backend.so") == 0) {
 789                 return load_wayland_backend(ivi, argc, argv);
 790         } else if (strcmp(backend, "x11-backend.so") == 0) {
 791                 return load_x11_backend(ivi, argc, argv);
 792         }
 793
 794         weston_log("fatal: unknown backend '%s'.\n", backend);
 795         return -1;
 796 }
 797
 798 static char *
 799 choose_default_backend(void)
 800 {
 801         char *backend = NULL;
 802
 803         if (getenv("WAYLAND_DISPLAY") || getenv("WAYLAND_SOCKET"))
 804                 backend = strdup("wayland-backend.so");
 805         else if (getenv("DISPLAY"))
 806                 backend = strdup("x11-backend.so");
 807         else
 808                 backend = strdup("drm-backend.so");
 809
 810         return backend;
 811 }
 812
 813 static int
 814 compositor_init_config(struct weston_compositor *compositor,
 815                        struct weston_config *config)
 816 {
 817         struct xkb_rule_names xkb_names;
 818         struct weston_config_section *section;
 819         int repaint_msec;
 820         bool vt_switching;
 821         bool require_input;
 822
 823         /* agl-compositor.ini [keyboard] */
 824         section = weston_config_get_section(config, "keyboard", NULL, NULL);
 825         weston_config_section_get_string(section, "keymap_rules",
 826                                          (char **) &xkb_names.rules, NULL);
 827         weston_config_section_get_string(section, "keymap_model",
 828                                          (char **) &xkb_names.model, NULL);
 829         weston_config_section_get_string(section, "keymap_layout",
 830                                          (char **) &xkb_names.layout, NULL);
 831         weston_config_section_get_string(section, "keymap_variant",
 832                                          (char **) &xkb_names.variant, NULL);
 833         weston_config_section_get_string(section, "keymap_options",
 834                                          (char **) &xkb_names.options, NULL);
 835
 836         if (weston_compositor_set_xkb_rule_names(compositor, &xkb_names) < 0)
 837                 return -1;
 838
 839         weston_config_section_get_int(section, "repeat-rate",
 840                                       &compositor->kb_repeat_rate, 40);
 841         weston_config_section_get_int(section, "repeat-delay",
 842                                       &compositor->kb_repeat_delay, 400);
 843
 844         weston_config_section_get_bool(section, "vt-switching",
 845                                        &vt_switching, true);
 846         compositor->vt_switching = vt_switching;
 847
 848         /* agl-compositor.ini [core] */
 849         section = weston_config_get_section(config, "core", NULL, NULL);
 850
 851         weston_config_section_get_bool(section, "require-input", &require_input, true);
 852         compositor->require_input = require_input;
 853
 854         weston_config_section_get_int(section, "repaint-window", &repaint_msec,
 855                                       compositor->repaint_msec);
 856         if (repaint_msec < -10 || repaint_msec > 1000) {
 857                 weston_log("Invalid repaint_window value in config: %d\n",
 858                            repaint_msec);
 859         } else {
 860                 compositor->repaint_msec = repaint_msec;
 861         }
 862         weston_log("Output repaint window is %d ms maximum.\n",
 863                    compositor->repaint_msec);
 864
 865         return 0;
 866 }
 867
 868 struct ivi_surface *
 869 to_ivi_surface(struct weston_surface *surface)
 870 {
 871         struct weston_desktop_surface *dsurface;
 872
 873         dsurface = weston_surface_get_desktop_surface(surface);
 874         if (!dsurface)
 875                 return NULL;
 876
 877         return weston_desktop_surface_get_user_data(dsurface);
 878 }
 879
 880 static void
 881 activate_binding(struct weston_seat *seat,
 882                  struct weston_view *focus_view)
 883 {
 884         struct weston_surface *focus = focus_view->surface;
 885         struct weston_surface *main_surface =
 886                 weston_surface_get_main_surface(focus);
 887         struct ivi_surface *surface;
 888
 889         surface = to_ivi_surface(main_surface);
 890         if (!surface)
 891                 return;
 892
 893         weston_seat_set_keyboard_focus(seat, focus);
 894 }
 895
 896 static void
 897 click_to_activate_binding(struct weston_pointer *pointer,
 898                           const struct timespec *time,
 899                           uint32_t button, void *data)
 900 {
 901         if (pointer->grab != &pointer->default_grab)
 902                 return;
 903         if (pointer->focus == NULL)
 904                 return;
 905
 906         activate_binding(pointer->seat, pointer->focus);
 907 }
 908
 909 static void
 910 touch_to_activate_binding(struct weston_touch *touch,
 911                           const struct timespec *time,
 912                           void *data)
 913 {
 914         if (touch->grab != &touch->default_grab)
 915                 return;
 916         if (touch->focus == NULL)
 917                 return;
 918
 919         activate_binding(touch->seat, touch->focus);
 920 }
 921
 922 static void
 923 add_bindings(struct weston_compositor *compositor)
 924 {
 925         weston_compositor_add_button_binding(compositor, BTN_LEFT, 0,
 926                                              click_to_activate_binding,
 927                                              NULL);
 928         weston_compositor_add_button_binding(compositor, BTN_RIGHT, 0,
 929                                              click_to_activate_binding,
 930                                              NULL);
 931         weston_compositor_add_touch_binding(compositor, 0,
 932                                             touch_to_activate_binding,
 933                                             NULL);
 934 }
 935
 936 static int
 937 create_listening_socket(struct wl_display *display, const char *socket_name)
 938 {
 939         if (socket_name) {
 940                 if (wl_display_add_socket(display, socket_name)) {
 941                         weston_log("fatal: failed to add socket: %s\n",
 942                                    strerror(errno));
 943                         return -1;
 944                 }
 945         } else {
 946                 socket_name = wl_display_add_socket_auto(display);
 947                 if (!socket_name) {
 948                         weston_log("fatal: failed to add socket: %s\n",
 949                                    strerror(errno));
 950                         return -1;
 951                 }
 952         }
 953
 954         setenv("WAYLAND_DISPLAY", socket_name, 1);
 955
 956         return 0;
 957 }
 958
 959 static bool
 960 global_filter(const struct wl_client *client, const struct wl_global *global,
 961               void *data)
 962 {
 963         return true;
 964 }
 965
 966 static int
 967 load_config(struct weston_config **config, bool no_config,
 968             const char *config_file)
 969 {
 970         const char *file = "agl-compositor.ini";
 971         const char *full_path;
 972
 973         if (config_file)
 974                 file = config_file;
 975
 976         if (!no_config)
 977                 *config = weston_config_parse(file);
 978
 979         if (*config) {
 980                 full_path = weston_config_get_full_path(*config);
 981
 982                 weston_log("Using config file '%s'.\n", full_path);
 983                 setenv(WESTON_CONFIG_FILE_ENV_VAR, full_path, 1);
 984
 985                 return 0;
 986         }
 987
 988         if (config_file && !no_config) {
 989                 weston_log("fatal: error opening or reading config file '%s'.\n",
 990                         config_file);
 991
 992                 return -1;
 993         }
 994
 995         weston_log("Starting with no config file.\n");
 996         setenv(WESTON_CONFIG_FILE_ENV_VAR, "", 1);
 997
 998         return 0;
 999 }
1000
1001 static FILE *logfile;
1002
1003 static char *
1004 log_timestamp(char *buf, size_t len)
1005 {
1006         struct timeval tv;
1007         struct tm *brokendown_time;
1008         char datestr[128];
1009         char timestr[128];
1010
1011         gettimeofday(&tv, NULL);
1012
1013         brokendown_time = localtime(&tv.tv_sec);
1014         if (brokendown_time == NULL) {
1015                 snprintf(buf, len, "%s", "[(NULL)localtime] ");
1016                 return buf;
1017         }
1018
1019         memset(datestr, 0, sizeof(datestr));
1020         if (brokendown_time->tm_mday != cached_tm_mday) {
1021                 strftime(datestr, sizeof(datestr), "Date: %Y-%m-%d %Z\n",
1022                                 brokendown_time);
1023                 cached_tm_mday = brokendown_time->tm_mday;
1024         }
1025
1026         strftime(timestr, sizeof(timestr), "%H:%M:%S", brokendown_time);
1027         /* if datestr is empty it prints only timestr*/
1028         snprintf(buf, len, "%s[%s.%03li]", datestr,
1029                         timestr, (tv.tv_usec / 1000));
1030
1031         return buf;
1032 }
1033
1034 static void
1035 custom_handler(const char *fmt, va_list arg)
1036 {
1037         char timestr[512];
1038
1039         weston_log_scope_printf(log_scope, "%s libwayland: ",
1040                         log_timestamp(timestr, sizeof(timestr)));
1041         weston_log_scope_vprintf(log_scope, fmt, arg);
1042 }
1043
1044 static void
1045 log_file_open(const char *filename)
1046 {
1047         wl_log_set_handler_server(custom_handler);
1048
1049         if (filename)
1050                 logfile = fopen(filename, "a");
1051
1052         if (!logfile) {
1053                 logfile = stderr;
1054         } else {
1055                 os_fd_set_cloexec(fileno(logfile));
1056                 setvbuf(logfile, NULL, _IOLBF, 256);
1057         }
1058 }
1059
1060 static void
1061 log_file_close(void)
1062 {
1063         if (logfile && logfile != stderr)
1064                 fclose(logfile);
1065         logfile = stderr;
1066 }
1067
1068 static int
1069 vlog(const char *fmt, va_list ap)
1070 {
1071         const char *oom = "Out of memory";
1072         char timestr[128];
1073         int len = 0;
1074         char *str;
1075
1076         if (weston_log_scope_is_enabled(log_scope)) {
1077                 int len_va;
1078                 char *xlog_timestamp = log_timestamp(timestr, sizeof(timestr));
1079                 len_va = vasprintf(&str, fmt, ap);
1080                 if (len_va >= 0) {
1081                         len = weston_log_scope_printf(log_scope, "%s %s",
1082                                         xlog_timestamp, str);
1083                         free(str);
1084                 } else {
1085                         len = weston_log_scope_printf(log_scope, "%s %s",
1086                                         xlog_timestamp, oom);
1087                 }
1088         }
1089
1090         return len;
1091 }
1092
1093
1094 static int
1095 vlog_continue(const char *fmt, va_list ap)
1096 {
1097         return weston_log_scope_vprintf(log_scope, fmt, ap);
1098 }
1099
1100 static int
1101 on_term_signal(int signo, void *data)
1102 {
1103         struct wl_display *display = data;
1104
1105         weston_log("caught signal %d\n", signo);
1106         wl_display_terminate(display);
1107
1108         return 1;
1109 }
1110
1111 static void
1112 handle_exit(struct weston_compositor *compositor)
1113 {
1114         wl_display_terminate(compositor->wl_display);
1115 }
1116
1117 static void
1118 usage(int error_code)
1119 {
1120         FILE *out = error_code == EXIT_SUCCESS ? stdout : stderr;
1121         fprintf(out,
1122                 "Usage: agl-compositor [OPTIONS]\n"
1123                 "\n"
1124                 "This is " PACKAGE_STRING ", the reference compositor for\n"
1125                 "Automotive Grade Linux. Weston-ivi supports multiple backends, and depending\n"
1126                 "on which backend is in use different options will be accepted.\n"
1127                 "\n"
1128                 "Core options:\n"
1129                 "\n"
1130                 "  --version\t\tPrint agl-compositor version\n"
1131                 "  -B, --backend=MODULE\tBackend module, one of\n"
1132                         "\t\t\t\tdrm-backend.so\n"
1133                         "\t\t\t\twayland-backend.so\n"
1134                         "\t\t\t\tx11-backend.so\n"
1135                 "  -S, --socket=NAME\tName of socket to listen on\n"
1136                 "  --log=FILE\t\tLog to the given file\n"
1137                 "  -c, --config=FILE\tConfig file to load, defaults to agl-compositor.ini\n"
1138                 "  --no-config\t\tDo not read agl-compositor.ini\n"
1139                 "  --debug\t\tEnable debug extension\n"
1140                 "  -h, --help\t\tThis help message\n"
1141                 "\n");
1142         exit(error_code);
1143 }
1144
1145 int main(int argc, char *argv[])
1146 {
1147         struct ivi_compositor ivi = { 0 };
1148         struct wl_display *display = NULL;
1149         struct wl_event_loop *loop;
1150         struct wl_event_source *signals[3] = { 0 };
1151         struct weston_config_section *section;
1152         /* Command line options */
1153         char *backend = NULL;
1154         char *socket_name = NULL;
1155         char *log = NULL;
1156         int help = 0;
1157         int version = 0;
1158         int no_config = 0;
1159         char *config_file = NULL;
1160         struct weston_log_context *log_ctx = NULL;
1161         struct weston_log_subscriber *logger;
1162         int ret = EXIT_FAILURE;
1163
1164         const struct weston_option core_options[] = {
1165                 { WESTON_OPTION_STRING, "backend", 'B', &backend },
1166                 { WESTON_OPTION_STRING, "socket", 'S', &socket_name },
1167                 { WESTON_OPTION_STRING, "log", 0, &log },
1168                 { WESTON_OPTION_BOOLEAN, "help", 'h', &help },
1169                 { WESTON_OPTION_BOOLEAN, "version", 0, &version },
1170                 { WESTON_OPTION_BOOLEAN, "no-config", 0, &no_config },
1171                 { WESTON_OPTION_STRING, "config", 'c', &config_file },
1172         };
1173
1174         wl_list_init(&ivi.outputs);
1175         wl_list_init(&ivi.surfaces);
1176         wl_list_init(&ivi.pending_surfaces);
1177         wl_list_init(&ivi.popup_pending_apps);
1178         wl_list_init(&ivi.fullscreen_pending_apps);
1179         wl_list_init(&ivi.split_pending_apps);
1180         wl_list_init(&ivi.remote_pending_apps);
1181         wl_list_init(&ivi.desktop_clients);
1182
1183         /* Prevent any clients we spawn getting our stdin */
1184         os_fd_set_cloexec(STDIN_FILENO);
1185
1186         parse_options(core_options, ARRAY_LENGTH(core_options), &argc, argv);
1187
1188         if (help)
1189                 usage(EXIT_SUCCESS);
1190
1191         if (version) {
1192                 printf(PACKAGE_STRING "\n");
1193                 return EXIT_SUCCESS;
1194         }
1195
1196         log_ctx = weston_log_ctx_compositor_create();
1197         if (!log_ctx) {
1198                 fprintf(stderr, "Failed to initialize weston debug framework.\n");
1199                 return ret;
1200         }
1201
1202         log_scope = weston_compositor_add_log_scope(log_ctx, "log",
1203                                                     "agl-compositor log\n",
1204                                                     NULL, NULL, NULL);
1205
1206         log_file_open(log);
1207         weston_log_set_handler(vlog, vlog_continue);
1208
1209         logger = weston_log_subscriber_create_log(logfile);
1210         weston_log_subscribe(log_ctx, logger, "log");
1211
1212         if (load_config(&ivi.config, no_config, config_file) < 0)
1213                 goto error_signals;
1214         section = weston_config_get_section(ivi.config, "core", NULL, NULL);
1215         if (!backend) {
1216                 weston_config_section_get_string(section, "backend", &backend,
1217                                                  NULL);
1218                 if (!backend)
1219                         backend = choose_default_backend();
1220         }
1221
1222         display = wl_display_create();
1223         loop = wl_display_get_event_loop(display);
1224
1225         wl_display_set_global_filter(display,
1226                                      global_filter, &ivi);
1227
1228         /* Register signal handlers so we shut down cleanly */
1229
1230         signals[0] = wl_event_loop_add_signal(loop, SIGTERM, on_term_signal,
1231                                               display);
1232         signals[1] = wl_event_loop_add_signal(loop, SIGINT, on_term_signal,
1233                                               display);
1234         signals[2] = wl_event_loop_add_signal(loop, SIGQUIT, on_term_signal,
1235                                               display);
1236
1237         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
1238                 if (!signals[i])
1239                         goto error_signals;
1240
1241         ivi.compositor = weston_compositor_create(display, log_ctx, &ivi);
1242         if (!ivi.compositor) {
1243                 weston_log("fatal: failed to create compositor.\n");
1244                 goto error_signals;
1245         }
1246
1247         if (compositor_init_config(ivi.compositor, ivi.config) < 0)
1248                 goto error_compositor;
1249
1250         if (load_backend(&ivi, backend, &argc, argv) < 0) {
1251                 weston_log("fatal: failed to create compositor backend.\n");
1252                 goto error_compositor;
1253         }
1254
1255         ivi.heads_changed.notify = heads_changed;
1256         weston_compositor_add_heads_changed_listener(ivi.compositor,
1257                                                      &ivi.heads_changed);
1258
1259         if (ivi_desktop_init(&ivi) < 0)
1260                 goto error_compositor;
1261
1262         if (ivi_policy_init(&ivi) < 0)
1263                 goto error_compositor;
1264
1265         if (ivi_shell_init(&ivi) < 0)
1266                 goto error_compositor;
1267
1268         add_bindings(ivi.compositor);
1269
1270         weston_compositor_flush_heads_changed(ivi.compositor);
1271
1272         ivi_shell_init_black_fs(&ivi);
1273
1274         if (create_listening_socket(display, socket_name) < 0)
1275                 goto error_compositor;
1276
1277         ivi.compositor->exit = handle_exit;
1278
1279         weston_compositor_wake(ivi.compositor);
1280
1281         ivi_shell_create_global(&ivi);
1282         ivi_launch_shell_client(&ivi);
1283         ivi_agl_systemd_notify(&ivi);
1284
1285         wl_display_run(display);
1286
1287         ret = ivi.compositor->exit_code;
1288
1289         wl_display_destroy_clients(display);
1290
1291 error_compositor:
1292         weston_compositor_tear_down(ivi.compositor);
1293
1294         weston_compositor_log_scope_destroy(log_scope);
1295         log_scope = NULL;
1296
1297         weston_log_ctx_compositor_destroy(ivi.compositor);
1298         weston_compositor_destroy(ivi.compositor);
1299
1300         weston_log_subscriber_destroy_log(logger);
1301
1302         ivi_policy_destroy(ivi.policy);
1303
1304 error_signals:
1305         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
1306                 if (signals[i])
1307                         wl_event_source_remove(signals[i]);
1308
1309         wl_display_destroy(display);
1310
1311         log_file_close();
1312         if (ivi.config)
1313                 weston_config_destroy(ivi.config);
1314
1315         return ret;
1316 }