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 #include <libweston/backend-x11.h>
  42 #include <libweston/libweston.h>
  43 #include <libweston/windowed-output-api.h>
  44 #include <libweston/config-parser.h>
  45 #include <libweston/weston-log.h>
  46
  47 #include "shared/os-compatibility.h"
  48
  49 #include "agl-shell-server-protocol.h"
  50
  51 struct ivi_compositor *
  52 to_ivi_compositor(struct weston_compositor *ec)
  53 {
  54         return weston_compositor_get_user_data(ec);
  55 }
  56
  57 static void
  58 handle_output_destroy(struct wl_listener *listener, void *data)
  59 {
  60         struct ivi_output *output;
  61
  62         output = wl_container_of(listener, output, output_destroy);
  63         assert(output->output == data);
  64
  65         output->output = NULL;
  66         wl_list_remove(&output->output_destroy.link);
  67 }
  68
  69 struct ivi_output *
  70 to_ivi_output(struct weston_output *o)
  71 {
  72         struct wl_listener *listener;
  73         struct ivi_output *output;
  74
  75         listener = weston_output_get_destroy_listener(o, handle_output_destroy);
  76         output = wl_container_of(listener, output, output_destroy);
  77
  78         return output;
  79 }
  80
  81 static struct ivi_output *
  82 ivi_ensure_output(struct ivi_compositor *ivi, char *name,
  83                   struct weston_config_section *config)
  84 {
  85         struct ivi_output *output = NULL;
  86         wl_list_for_each(output, &ivi->outputs, link) {
  87                 if (strcmp(output->name, name) == 0) {
  88                         free(name);
  89                         return output;
  90                 }
  91         }
  92
  93         output = zalloc(sizeof *output);
  94         if (!output) {
  95                 free(name);
  96                 return NULL;
  97         }
  98
  99         output->ivi = ivi;
 100         output->name = name;
 101         output->config = config;
 102
 103         output->output = weston_compositor_create_output(ivi->compositor, name);
 104         if (!output->output) {
 105                 free(output->name);
 106                 free(output);
 107                 return NULL;
 108         }
 109
 110         output->output_destroy.notify = handle_output_destroy;
 111         weston_output_add_destroy_listener(output->output,
 112                                            &output->output_destroy);
 113
 114         wl_list_insert(&ivi->outputs, &output->link);
 115         return output;
 116 }
 117
 118 static int
 119 count_heads(struct weston_output *output)
 120 {
 121         struct weston_head *iter = NULL;
 122         int n = 0;
 123
 124         while ((iter = weston_output_iterate_heads(output, iter)))
 125                 ++n;
 126
 127         return n;
 128 }
 129
 130 static void
 131 handle_head_destroy(struct wl_listener *listener, void *data)
 132 {
 133         struct weston_head *head = data;
 134         struct weston_output *output;
 135
 136         wl_list_remove(&listener->link);
 137         free(listener);
 138
 139         output = weston_head_get_output(head);
 140
 141         /* On shutdown path, the output might be already gone. */
 142         if (!output)
 143                 return;
 144
 145         /* We're the last head */
 146         if (count_heads(output) <= 1)
 147                 weston_output_destroy(output);
 148 }
 149
 150 static void
 151 add_head_destroyed_listener(struct weston_head *head)
 152 {
 153         /* We already have a destroy listener */
 154         if (weston_head_get_destroy_listener(head, handle_head_destroy))
 155                 return;
 156
 157         struct wl_listener *listener = zalloc(sizeof *listener);
 158         if (!listener)
 159                 return;
 160
 161         listener->notify = handle_head_destroy;
 162         weston_head_add_destroy_listener(head, listener);
 163 }
 164
 165 static int
 166 drm_configure_output(struct ivi_output *output)
 167 {
 168         struct ivi_compositor *ivi = output->ivi;
 169         struct weston_config_section *section = output->config;
 170         enum weston_drm_backend_output_mode mode =
 171                 WESTON_DRM_BACKEND_OUTPUT_PREFERRED;
 172         char *modeline = NULL;
 173         char *gbm_format = NULL;
 174         char *seat = NULL;
 175
 176         if (section) {
 177                 char *m;
 178                 weston_config_section_get_string(section, "mode", &m, "preferred");
 179
 180                 /* This should have been handled earlier */
 181                 assert(strcmp(m, "off") != 0);
 182
 183                 if (ivi->cmdline.use_current_mode || strcmp(m, "current") == 0) {
 184                         mode = WESTON_DRM_BACKEND_OUTPUT_CURRENT;
 185                 } else if (strcmp(m, "preferred") != 0) {
 186                         modeline = m;
 187                         m = NULL;
 188                 }
 189                 free(m);
 190
 191                 weston_config_section_get_string(section, "gbm-format",
 192                                                  &gbm_format, NULL);
 193
 194                 weston_config_section_get_string(section, "seat", &seat, "");
 195         }
 196
 197         if (ivi->drm_api->set_mode(output->output, mode, modeline) < 0) {
 198                 weston_log("Cannot configure output using weston_drm_output_api.\n");
 199                 free(modeline);
 200                 return -1;
 201         }
 202         free(modeline);
 203
 204         ivi->drm_api->set_gbm_format(output->output, gbm_format);
 205         free(gbm_format);
 206
 207         ivi->drm_api->set_seat(output->output, seat);
 208         free(seat);
 209
 210         return 0;
 211 }
 212
 213 #define WINDOWED_DEFAULT_WIDTH 1024
 214 #define WINDOWED_DEFAULT_HEIGHT 768
 215
 216 static int
 217 windowed_configure_output(struct ivi_output *output)
 218 {
 219         struct ivi_compositor *ivi = output->ivi;
 220         struct weston_config_section *section = output->config;
 221         int width = WINDOWED_DEFAULT_WIDTH;
 222         int height = WINDOWED_DEFAULT_HEIGHT;
 223
 224         if (section) {
 225                 char *mode;
 226
 227                 weston_config_section_get_string(section, "mode", &mode, NULL);
 228                 if (!mode || sscanf(mode, "%dx%d", &width, &height) != 2) {
 229                         weston_log("Invalid mode for output %s. Using defaults.\n",
 230                                    output->name);
 231                         width = WINDOWED_DEFAULT_WIDTH;
 232                         height = WINDOWED_DEFAULT_HEIGHT;
 233                 }
 234                 free(mode);
 235         }
 236
 237         if (ivi->cmdline.width)
 238                 width = ivi->cmdline.width;
 239         if (ivi->cmdline.height)
 240                 height = ivi->cmdline.height;
 241         if (ivi->cmdline.scale)
 242                 weston_output_set_scale(output->output, ivi->cmdline.scale);
 243
 244         if (ivi->window_api->output_set_size(output->output, width, height) < 0) {
 245                 weston_log("Cannot configure output '%s' using weston_windowed_output_api.\n",
 246                            output->name);
 247                 return -1;
 248         }
 249
 250         return 0;
 251 }
 252
 253 static int
 254 parse_transform(const char *transform, uint32_t *out)
 255 {
 256         static const struct { const char *name; uint32_t token; } transforms[] = {
 257                 { "normal",     WL_OUTPUT_TRANSFORM_NORMAL },
 258                 { "90",         WL_OUTPUT_TRANSFORM_90 },
 259                 { "180",        WL_OUTPUT_TRANSFORM_180 },
 260                 { "270",        WL_OUTPUT_TRANSFORM_270 },
 261                 { "flipped",    WL_OUTPUT_TRANSFORM_FLIPPED },
 262                 { "flipped-90", WL_OUTPUT_TRANSFORM_FLIPPED_90 },
 263                 { "flipped-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 },
 264                 { "flipped-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 },
 265         };
 266
 267         for (size_t i = 0; i < ARRAY_LENGTH(transforms); i++)
 268                 if (strcmp(transforms[i].name, transform) == 0) {
 269                         *out = transforms[i].token;
 270                         return 0;
 271                 }
 272
 273         *out = WL_OUTPUT_TRANSFORM_NORMAL;
 274         return -1;
 275 }
 276
 277 static int
 278 configure_output(struct ivi_output *output)
 279 {
 280         struct ivi_compositor *ivi = output->ivi;
 281         struct weston_config_section *section = output->config;
 282         int32_t scale = 1;
 283         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
 284
 285         /*
 286          * This can happen with the wayland backend with 'sprawl'. The config
 287          * is hard-coded, so we don't need to do anything.
 288          */
 289         if (!ivi->drm_api && !ivi->window_api)
 290                 return 0;
 291
 292         if (section) {
 293                 char *t;
 294
 295                 weston_config_section_get_int(section, "scale", &scale, 1);
 296                 weston_config_section_get_string(section, "transform", &t, "normal");
 297                 if (parse_transform(t, &transform) < 0)
 298                         weston_log("Invalid transform \"%s\" for output %s\n",
 299                                    t, output->name);
 300                 free(t);
 301         }
 302
 303         weston_output_set_scale(output->output, scale);
 304         weston_output_set_transform(output->output, transform);
 305
 306         if (ivi->drm_api)
 307                 return drm_configure_output(output);
 308         else
 309                 return windowed_configure_output(output);
 310 }
 311
 312 /*
 313  * Reorgainizes the output's add array into two sections.
 314  * add[0..ret-1] are the heads that failed to get attached.
 315  * add[ret..add_len] are the heads that were successfully attached.
 316  *
 317  * The order between elements in each section is stable.
 318  */
 319 static size_t
 320 try_attach_heads(struct ivi_output *output)
 321 {
 322         size_t fail_len = 0;
 323
 324         for (size_t i = 0; i < output->add_len; ++i) {
 325                 if (weston_output_attach_head(output->output, output->add[i]) < 0) {
 326                         struct weston_head *tmp = output->add[i];
 327                         memmove(&output->add[fail_len + 1], output->add[fail_len],
 328                                 sizeof output->add[0] * (i - fail_len));
 329                         output->add[fail_len++] = tmp;
 330                 }
 331         }
 332
 333         return fail_len;
 334 }
 335
 336 /*
 337  * Like try_attach_heads, this reorganizes the output's add array into a failed
 338  * and successful section.
 339  * i is the number of heads that already failed the previous step.
 340  */
 341 static size_t
 342 try_enable_output(struct ivi_output *output, size_t i)
 343 {
 344         for (; i < output->add_len; ++i) {
 345                 struct weston_head *head;
 346
 347                 if (weston_output_enable(output->output) == 0)
 348                         break;
 349
 350                 head = output->add[output->add_len - 1];
 351                 memmove(&output->add[i + 1], &output->add[i],
 352                         sizeof output->add[0] * (output->add_len - i));
 353                 output->add[i] = head;
 354
 355                 weston_head_detach(head);
 356         }
 357
 358         return i;
 359 }
 360
 361 static int
 362 try_attach_enable_heads(struct ivi_output *output)
 363 {
 364         size_t fail_len;
 365         assert(!output->output->enabled);
 366
 367         fail_len = try_attach_heads(output);
 368
 369         if (configure_output(output) < 0)
 370                 return -1;
 371
 372         fail_len = try_enable_output(output, fail_len);
 373
 374         /* All heads failed to be attached */
 375         if (fail_len == output->add_len)
 376                 return -1;
 377
 378         /* For each successful head attached */
 379         for (size_t i = fail_len; i < output->add_len; ++i)
 380                 add_head_destroyed_listener(output->add[i]);
 381
 382         output->add_len = fail_len;
 383         return 0;
 384 }
 385
 386 static int
 387 process_output(struct ivi_output *output)
 388 {
 389         if (output->output->enabled) {
 390                 output->add_len = try_attach_heads(output);
 391                 return output->add_len == 0 ? 0 : -1;
 392         }
 393
 394         return try_attach_enable_heads(output);
 395 }
 396
 397 static void
 398 head_disable(struct ivi_compositor *ivi, struct weston_head *head)
 399 {
 400         struct weston_output *output;
 401         struct ivi_output *ivi_output;
 402         struct wl_listener *listener;
 403
 404         output = weston_head_get_output(head);
 405         assert(output);
 406
 407         listener = weston_output_get_destroy_listener(output,
 408                                                       handle_output_destroy);
 409         assert(listener);
 410
 411         ivi_output = wl_container_of(listener, ivi_output, output_destroy);
 412         assert(ivi_output->output == output);
 413
 414         weston_head_detach(head);
 415         if (count_heads(ivi_output->output) == 0) {
 416                 weston_output_disable(ivi_output->output);
 417         }
 418 }
 419
 420 static struct weston_config_section *
 421 find_controlling_output_config(struct weston_config *config,
 422                                const char *name)
 423 {
 424         struct weston_config_section *section;
 425         char *same_as;
 426         int depth = 0;
 427
 428         same_as = strdup(name);
 429         do {
 430                 section = weston_config_get_section(config, "output",
 431                                                     "name", same_as);
 432                 if (!section && depth > 0)
 433                         weston_log("Configuration error: output section reffered"
 434                                    "to by same-as=%s not found.\n", same_as);
 435                 free(same_as);
 436
 437                 if (!section)
 438                         return NULL;
 439
 440                 if (depth++ > 8) {
 441                         weston_log("Configuration error: same-as nested too "
 442                                    "deep for output '%s'.\n", name);
 443                         return NULL;
 444                 }
 445
 446                 weston_config_section_get_string(section, "same-as",
 447                                                  &same_as, NULL);
 448         } while (same_as);
 449
 450         return section;
 451 }
 452
 453 static void
 454 head_prepare_enable(struct ivi_compositor *ivi, struct weston_head *head)
 455 {
 456         const char *name = weston_head_get_name(head);
 457         struct weston_config_section *section;
 458         struct ivi_output *output;
 459         char *output_name = NULL;
 460
 461         section = find_controlling_output_config(ivi->config, name);
 462         if (section) {
 463                 char *mode;
 464
 465                 weston_config_section_get_string(section, "mode", &mode, NULL);
 466                 if (mode && strcmp(mode, "off") == 0) {
 467                         free(mode);
 468                         return;
 469                 }
 470                 free(mode);
 471
 472                 weston_config_section_get_string(section, "name",
 473                                                  &output_name, NULL);
 474         } else {
 475                 output_name = strdup(name);
 476         }
 477
 478         if (!output_name)
 479                 return;
 480
 481         output = ivi_ensure_output(ivi, output_name, section);
 482         if (!output)
 483                 return;
 484
 485         if (output->add_len >= ARRAY_LENGTH(output->add))
 486                 return;
 487
 488         output->add[output->add_len++] = head;
 489 }
 490
 491 static void
 492 heads_changed(struct wl_listener *listener, void *arg)
 493 {
 494         struct weston_compositor *compositor = arg;
 495         struct weston_head *head = NULL;
 496         struct ivi_compositor *ivi = to_ivi_compositor(compositor);
 497         struct ivi_output *output;
 498
 499         while ((head = weston_compositor_iterate_heads(ivi->compositor, head))) {
 500                 bool connected = weston_head_is_connected(head);
 501                 bool enabled = weston_head_is_enabled(head);
 502                 bool changed = weston_head_is_device_changed(head);
 503                 bool non_desktop = weston_head_is_non_desktop(head);
 504
 505                 if (connected && !enabled && !non_desktop)
 506                         head_prepare_enable(ivi, head);
 507                 else if (!connected && enabled)
 508                         head_disable(ivi, head);
 509                 else if (enabled && changed)
 510                         weston_log("Detected a monitor change on head '%s', "
 511                                    "not bothering to do anything about it.\n",
 512                                    weston_head_get_name(head));
 513
 514                 weston_head_reset_device_changed(head);
 515         }
 516
 517         wl_list_for_each(output, &ivi->outputs, link) {
 518                 if (output->add_len == 0)
 519                         continue;
 520
 521                 if (process_output(output) < 0) {
 522                         output->add_len = 0;
 523                         ivi->init_failed = true;
 524                 }
 525         }
 526 }
 527
 528 static int
 529 load_drm_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 530 {
 531         struct weston_drm_backend_config config = {
 532                 .base = {
 533                         .struct_version = WESTON_DRM_BACKEND_CONFIG_VERSION,
 534                         .struct_size = sizeof config,
 535                 },
 536         };
 537         struct weston_config_section *section;
 538         int use_current_mode = 0;
 539         int use_pixman = 0;
 540         int use_shadow;
 541         int ret;
 542
 543         const struct weston_option options[] = {
 544                 { WESTON_OPTION_STRING, "seat", 0, &config.seat_id },
 545                 { WESTON_OPTION_INTEGER, "tty", 0, &config.tty },
 546                 { WESTON_OPTION_STRING, "drm-device", 0, &config.specific_device },
 547                 { WESTON_OPTION_BOOLEAN, "current-mode", 0, &use_current_mode },
 548                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman },
 549         };
 550
 551         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 552         config.use_pixman = use_pixman;
 553         ivi->cmdline.use_current_mode = use_current_mode;
 554
 555         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
 556         weston_config_section_get_string(section, "gbm-format",
 557                                          &config.gbm_format, NULL);
 558         weston_config_section_get_uint(section, "pageflip-timeout",
 559                                        &config.pageflip_timeout, 0);
 560         weston_config_section_get_bool(section, "pixman-shadow", &use_shadow, 1);
 561         config.use_pixman_shadow = use_shadow;
 562
 563         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_DRM,
 564                                              &config.base);
 565         if (ret < 0)
 566                 return ret;
 567
 568         ivi->drm_api = weston_drm_output_get_api(ivi->compositor);
 569         if (!ivi->drm_api) {
 570                 weston_log("Cannot use drm output api.\n");
 571                 ret = -1;
 572                 goto error;
 573         }
 574
 575 error:
 576         free(config.gbm_format);
 577         free(config.seat_id);
 578         return ret;
 579 }
 580
 581 static void
 582 windowed_parse_common_options(struct ivi_compositor *ivi, int *argc, char *argv[],
 583                               bool *use_pixman, bool *fullscreen, int *output_count)
 584 {
 585         struct weston_config_section *section;
 586         int pixman;
 587         int fs = 0;
 588
 589         const struct weston_option options[] = {
 590                 { WESTON_OPTION_INTEGER, "width", 0, &ivi->cmdline.width },
 591                 { WESTON_OPTION_INTEGER, "height", 0, &ivi->cmdline.height },
 592                 { WESTON_OPTION_INTEGER, "scale", 0, &ivi->cmdline.scale },
 593                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &pixman },
 594                 { WESTON_OPTION_BOOLEAN, "fullscreen", 0, &fs },
 595                 { WESTON_OPTION_INTEGER, "output-count", 0, output_count },
 596         };
 597
 598         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
 599         weston_config_section_get_bool(section, "use-pixman", &pixman, 0);
 600
 601         *output_count = 1;
 602         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 603         *use_pixman = pixman;
 604         *fullscreen = fs;
 605 }
 606
 607 static int
 608 windowed_create_outputs(struct ivi_compositor *ivi, int output_count,
 609                         const char *match_prefix, const char *name_prefix)
 610 {
 611         struct weston_config_section *section = NULL;
 612         const char *section_name;
 613         char *default_output = NULL;
 614         int i = 0;
 615         size_t match_len = strlen(match_prefix);
 616
 617         while (weston_config_next_section(ivi->config, &section, &section_name)) {
 618                 char *output_name;
 619
 620                 if (i >= output_count)
 621                         break;
 622
 623                 if (strcmp(section_name, "output") != 0)
 624                         continue;
 625
 626                 weston_config_section_get_string(section, "name", &output_name, NULL);
 627                 if (output_name == NULL)
 628                         continue;
 629                 if (strncmp(output_name, match_prefix, match_len) != 0) {
 630                         free(output_name);
 631                         continue;
 632                 }
 633
 634                 if (ivi->window_api->create_head(ivi->compositor, output_name) < 0) {
 635                         free(output_name);
 636                         return -1;
 637                 }
 638
 639                 free(output_name);
 640                 ++i;
 641         }
 642
 643         for (; i < output_count; ++i) {
 644                 if (asprintf(&default_output, "%s%d", name_prefix, i) < 0)
 645                         return -1;
 646
 647                 if (ivi->window_api->create_head(ivi->compositor, default_output) < 0) {
 648                         free(default_output);
 649                         return -1;
 650                 }
 651
 652                 free(default_output);
 653         }
 654
 655         return 0;
 656 }
 657
 658 static int
 659 load_wayland_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 660 {
 661         struct weston_wayland_backend_config config = {
 662                 .base = {
 663                         .struct_version = WESTON_WAYLAND_BACKEND_CONFIG_VERSION,
 664                         .struct_size = sizeof config,
 665                 },
 666         };
 667         struct weston_config_section *section;
 668         int sprawl = 0;
 669         int output_count;
 670         int ret;
 671
 672         const struct weston_option options[] = {
 673                 { WESTON_OPTION_STRING, "display", 0, &config.display_name },
 674                 { WESTON_OPTION_STRING, "sprawl", 0, &sprawl },
 675         };
 676
 677         windowed_parse_common_options(ivi, argc, argv, &config.use_pixman,
 678                                       &config.fullscreen, &output_count);
 679
 680         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 681         config.sprawl = sprawl;
 682
 683         section = weston_config_get_section(ivi->config, "shell", NULL, NULL);
 684         weston_config_section_get_string(section, "cursor-theme",
 685                                          &config.cursor_theme, NULL);
 686         weston_config_section_get_int(section, "cursor-size",
 687                                       &config.cursor_size, 32);
 688
 689         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_WAYLAND,
 690                                              &config.base);
 691
 692         free(config.cursor_theme);
 693         free(config.display_name);
 694
 695         if (ret < 0)
 696                 return ret;
 697
 698         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
 699
 700         /*
 701          * We will just assume if load_backend() finished cleanly and
 702          * windowed_output_api is not present that wayland backend is started
 703          * with --sprawl or runs on fullscreen-shell. In this case, all values
 704          * are hardcoded, so nothing can be configured; simply create and
 705          * enable an output.
 706          */
 707         if (ivi->window_api == NULL)
 708                 return 0;
 709
 710         return windowed_create_outputs(ivi, output_count, "WL", "wayland");
 711 }
 712
 713 static int
 714 load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 715 {
 716         struct weston_x11_backend_config config = {
 717                 .base = {
 718                         .struct_version = WESTON_X11_BACKEND_CONFIG_VERSION,
 719                         .struct_size = sizeof config,
 720                 },
 721         };
 722         int no_input = 0;
 723         int output_count;
 724         int ret;
 725
 726         const struct weston_option options[] = {
 727                { WESTON_OPTION_BOOLEAN, "no-input", 0, &no_input },
 728         };
 729
 730         windowed_parse_common_options(ivi, argc, argv, &config.use_pixman,
 731                                       &config.fullscreen, &output_count);
 732
 733         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 734         config.no_input = no_input;
 735
 736         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_X11,
 737                                              &config.base);
 738
 739         if (ret < 0)
 740                 return ret;
 741
 742         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
 743         if (!ivi->window_api) {
 744                 weston_log("Cannot use weston_windowed_output_api.\n");
 745                 return -1;
 746         }
 747
 748         return windowed_create_outputs(ivi, output_count, "X", "screen");
 749 }
 750
 751 static int
 752 load_backend(struct ivi_compositor *ivi, const char *backend,
 753              int *argc, char *argv[])
 754 {
 755         if (strcmp(backend, "drm-backend.so") == 0) {
 756                 return load_drm_backend(ivi, argc, argv);
 757         } else if (strcmp(backend, "wayland-backend.so") == 0) {
 758                 return load_wayland_backend(ivi, argc, argv);
 759         } else if (strcmp(backend, "x11-backend.so") == 0) {
 760                 return load_x11_backend(ivi, argc, argv);
 761         }
 762
 763         weston_log("fatal: unknown backend '%s'.\n", backend);
 764         return -1;
 765 }
 766
 767 static char *
 768 choose_default_backend(void)
 769 {
 770         char *backend = NULL;
 771
 772         if (getenv("WAYLAND_DISPLAY") || getenv("WAYLAND_SOCKET"))
 773                 backend = strdup("wayland-backend.so");
 774         else if (getenv("DISPLAY"))
 775                 backend = strdup("x11-backend.so");
 776         else
 777                 backend = strdup("drm-backend.so");
 778
 779         return backend;
 780 }
 781
 782 static int
 783 compositor_init_config(struct weston_compositor *compositor,
 784                        struct weston_config *config)
 785 {
 786         struct xkb_rule_names xkb_names;
 787         struct weston_config_section *section;
 788         int repaint_msec;
 789         int vt_switching;
 790         int require_input;
 791
 792         /* agl-compositor.ini [keyboard] */
 793         section = weston_config_get_section(config, "keyboard", NULL, NULL);
 794         weston_config_section_get_string(section, "keymap_rules",
 795                                          (char **) &xkb_names.rules, NULL);
 796         weston_config_section_get_string(section, "keymap_model",
 797                                          (char **) &xkb_names.model, NULL);
 798         weston_config_section_get_string(section, "keymap_layout",
 799                                          (char **) &xkb_names.layout, NULL);
 800         weston_config_section_get_string(section, "keymap_variant",
 801                                          (char **) &xkb_names.variant, NULL);
 802         weston_config_section_get_string(section, "keymap_options",
 803                                          (char **) &xkb_names.options, NULL);
 804
 805         if (weston_compositor_set_xkb_rule_names(compositor, &xkb_names) < 0)
 806                 return -1;
 807
 808         weston_config_section_get_int(section, "repeat-rate",
 809                                       &compositor->kb_repeat_rate, 40);
 810         weston_config_section_get_int(section, "repeat-delay",
 811                                       &compositor->kb_repeat_delay, 400);
 812
 813         weston_config_section_get_bool(section, "vt-switching",
 814                                        &vt_switching, true);
 815         compositor->vt_switching = vt_switching;
 816
 817         /* agl-compositor.ini [core] */
 818         section = weston_config_get_section(config, "core", NULL, NULL);
 819
 820         weston_config_section_get_bool(section, "require-input", &require_input, true);
 821         compositor->require_input = require_input;
 822
 823         weston_config_section_get_int(section, "repaint-window", &repaint_msec,
 824                                       compositor->repaint_msec);
 825         if (repaint_msec < -10 || repaint_msec > 1000) {
 826                 weston_log("Invalid repaint_window value in config: %d\n",
 827                            repaint_msec);
 828         } else {
 829                 compositor->repaint_msec = repaint_msec;
 830         }
 831         weston_log("Output repaint window is %d ms maximum.\n",
 832                    compositor->repaint_msec);
 833
 834         return 0;
 835 }
 836
 837 struct ivi_surface *
 838 to_ivi_surface(struct weston_surface *surface)
 839 {
 840         struct weston_desktop_surface *dsurface;
 841
 842         dsurface = weston_surface_get_desktop_surface(surface);
 843         if (!dsurface)
 844                 return NULL;
 845
 846         return weston_desktop_surface_get_user_data(dsurface);
 847 }
 848
 849 static void
 850 activate_binding(struct weston_seat *seat,
 851                  struct weston_view *focus_view)
 852 {
 853         struct weston_surface *focus = focus_view->surface;
 854         struct weston_surface *main_surface =
 855                 weston_surface_get_main_surface(focus);
 856         struct ivi_surface *surface;
 857
 858         surface = to_ivi_surface(main_surface);
 859         if (!surface)
 860                 return;
 861
 862         weston_seat_set_keyboard_focus(seat, focus);
 863 }
 864
 865 static void
 866 click_to_activate_binding(struct weston_pointer *pointer,
 867                           const struct timespec *time,
 868                           uint32_t button, void *data)
 869 {
 870         if (pointer->grab != &pointer->default_grab)
 871                 return;
 872         if (pointer->focus == NULL)
 873                 return;
 874
 875         activate_binding(pointer->seat, pointer->focus);
 876 }
 877
 878 static void
 879 touch_to_activate_binding(struct weston_touch *touch,
 880                           const struct timespec *time,
 881                           void *data)
 882 {
 883         if (touch->grab != &touch->default_grab)
 884                 return;
 885         if (touch->focus == NULL)
 886                 return;
 887
 888         activate_binding(touch->seat, touch->focus);
 889 }
 890
 891 static void
 892 add_bindings(struct weston_compositor *compositor)
 893 {
 894         weston_compositor_add_button_binding(compositor, BTN_LEFT, 0,
 895                                              click_to_activate_binding,
 896                                              NULL);
 897         weston_compositor_add_button_binding(compositor, BTN_RIGHT, 0,
 898                                              click_to_activate_binding,
 899                                              NULL);
 900         weston_compositor_add_touch_binding(compositor, 0,
 901                                             touch_to_activate_binding,
 902                                             NULL);
 903 }
 904
 905 static int
 906 create_listening_socket(struct wl_display *display, const char *socket_name)
 907 {
 908         if (socket_name) {
 909                 if (wl_display_add_socket(display, socket_name)) {
 910                         weston_log("fatal: failed to add socket: %s\n",
 911                                    strerror(errno));
 912                         return -1;
 913                 }
 914         } else {
 915                 socket_name = wl_display_add_socket_auto(display);
 916                 if (!socket_name) {
 917                         weston_log("fatal: failed to add socket: %s\n",
 918                                    strerror(errno));
 919                         return -1;
 920                 }
 921         }
 922
 923         setenv("WAYLAND_DISPLAY", socket_name, 1);
 924
 925         return 0;
 926 }
 927
 928 static bool
 929 global_filter(const struct wl_client *client, const struct wl_global *global,
 930               void *data)
 931 {
 932         return true;
 933 }
 934
 935 static int
 936 load_config(struct weston_config **config, bool no_config,
 937             const char *config_file)
 938 {
 939         const char *file = "agl-compositor.ini";
 940         const char *full_path;
 941
 942         if (config_file)
 943                 file = config_file;
 944
 945         if (!no_config)
 946                 *config = weston_config_parse(file);
 947
 948         if (*config) {
 949                 full_path = weston_config_get_full_path(*config);
 950
 951                 weston_log("Using config file '%s'.\n", full_path);
 952                 setenv(WESTON_CONFIG_FILE_ENV_VAR, full_path, 1);
 953
 954                 return 0;
 955         }
 956
 957         if (config_file && !no_config) {
 958                 weston_log("fatal: error opening or reading config file '%s'.\n",
 959                         config_file);
 960
 961                 return -1;
 962         }
 963
 964         weston_log("Starting with no config file.\n");
 965         setenv(WESTON_CONFIG_FILE_ENV_VAR, "", 1);
 966
 967         return 0;
 968 }
 969
 970 static FILE *logfile;
 971
 972 static int
 973 log_timestamp(void)
 974 {
 975         static int cached_tm_mday = -1;
 976         struct timespec ts;
 977         struct tm brokendown_time;
 978         char buf[128];
 979
 980         clock_gettime(CLOCK_REALTIME, &ts);
 981         if (!localtime_r(&ts.tv_sec, &brokendown_time))
 982                 return fprintf(logfile, "[(NULL)localtime] ");
 983
 984         if (brokendown_time.tm_mday != cached_tm_mday) {
 985                 strftime(buf, sizeof buf, "%Y-%m-%d %Z", &brokendown_time);
 986                 fprintf(logfile, "Date: %s\n", buf);
 987
 988                 cached_tm_mday = brokendown_time.tm_mday;
 989         }
 990
 991         strftime(buf, sizeof buf, "%H:%M:%S", &brokendown_time);
 992
 993         return fprintf(logfile, "[%s.%03ld] ", buf, ts.tv_nsec / 1000000);
 994 }
 995
 996 static void
 997 custom_handler(const char *fmt, va_list arg)
 998 {
 999         log_timestamp();
1000         fprintf(logfile, "libwayland: ");
1001         vfprintf(logfile, fmt, arg);
1002 }
1003
1004 static void
1005 log_file_open(const char *filename)
1006 {
1007         wl_log_set_handler_server(custom_handler);
1008
1009         if (filename)
1010                 logfile = fopen(filename, "a");
1011
1012         if (!logfile) {
1013                 logfile = stderr;
1014         } else {
1015                 os_fd_set_cloexec(fileno(logfile));
1016                 setvbuf(logfile, NULL, _IOLBF, 256);
1017         }
1018 }
1019
1020 static void
1021 log_file_close(void)
1022 {
1023         if (logfile && logfile != stderr)
1024                 fclose(logfile);
1025         logfile = stderr;
1026 }
1027
1028 static int
1029 vlog(const char *fmt, va_list ap)
1030 {
1031         int l;
1032
1033         l = log_timestamp();
1034         l += vfprintf(logfile, fmt, ap);
1035
1036         return l;
1037 }
1038
1039 static int
1040 vlog_continue(const char *fmt, va_list ap)
1041 {
1042         return vfprintf(logfile, fmt, ap);
1043 }
1044
1045 static int
1046 on_term_signal(int signo, void *data)
1047 {
1048         struct wl_display *display = data;
1049
1050         weston_log("caught signal %d\n", signo);
1051         wl_display_terminate(display);
1052
1053         return 1;
1054 }
1055
1056 static void
1057 handle_exit(struct weston_compositor *compositor)
1058 {
1059         wl_display_terminate(compositor->wl_display);
1060 }
1061
1062 static void
1063 usage(int error_code)
1064 {
1065         FILE *out = error_code == EXIT_SUCCESS ? stdout : stderr;
1066         fprintf(out,
1067                 "Usage: agl-compositor [OPTIONS]\n"
1068                 "\n"
1069                 "This is " PACKAGE_STRING ", the reference compositor for\n"
1070                 "Automotive Grade Linux. Weston-ivi supports multiple backends, and depending\n"
1071                 "on which backend is in use different options will be accepted.\n"
1072                 "\n"
1073                 "Core options:\n"
1074                 "\n"
1075                 "  --version\t\tPrint agl-compositor version\n"
1076                 "  -B, --backend=MODULE\tBackend module, one of\n"
1077                         "\t\t\t\tdrm-backend.so\n"
1078                         "\t\t\t\twayland-backend.so\n"
1079                         "\t\t\t\tx11-backend.so\n"
1080                 "  -S, --socket=NAME\tName of socket to listen on\n"
1081                 "  --log=FILE\t\tLog to the given file\n"
1082                 "  -c, --config=FILE\tConfig file to load, defaults to agl-compositor.ini\n"
1083                 "  --no-config\t\tDo not read agl-compositor.ini\n"
1084                 "  --debug\t\tEnable debug extension\n"
1085                 "  -h, --help\t\tThis help message\n"
1086                 "\n");
1087         exit(error_code);
1088 }
1089
1090 static void
1091 ivi_compositor_get_quirks(struct ivi_compositor *ivi)
1092 {
1093         struct weston_config_section *section;
1094
1095         if (!ivi->config)
1096                 return;
1097
1098         section = weston_config_get_section(ivi->config, "shell", NULL, NULL);
1099         weston_config_section_get_bool(section, "activate-by-default",
1100                         &ivi->quirks.activate_apps_by_default, 0);
1101
1102 }
1103
1104 int main(int argc, char *argv[])
1105 {
1106         struct ivi_compositor ivi = { 0 };
1107         struct wl_display *display = NULL;
1108         struct wl_event_loop *loop;
1109         struct wl_event_source *signals[3] = { 0 };
1110         struct weston_config_section *section;
1111         /* Command line options */
1112         char *backend = NULL;
1113         char *socket_name = NULL;
1114         char *log = NULL;
1115         int help = 0;
1116         int version = 0;
1117         int no_config = 0;
1118         char *config_file = NULL;
1119         int debug_protocol = 0;
1120         struct weston_log_context *log_ctx = NULL;
1121         struct weston_log_scope *log_scope;
1122         struct weston_log_subscriber *logger;
1123
1124         const struct weston_option core_options[] = {
1125                 { WESTON_OPTION_STRING, "backend", 'B', &backend },
1126                 { WESTON_OPTION_STRING, "socket", 'S', &socket_name },
1127                 { WESTON_OPTION_STRING, "log", 0, &log },
1128                 { WESTON_OPTION_BOOLEAN, "help", 'h', &help },
1129                 { WESTON_OPTION_BOOLEAN, "version", 0, &version },
1130                 { WESTON_OPTION_BOOLEAN, "no-config", 0, &no_config },
1131                 { WESTON_OPTION_STRING, "config", 'c', &config_file },
1132                 { WESTON_OPTION_BOOLEAN, "debug", 0, &debug_protocol },
1133         };
1134
1135         wl_list_init(&ivi.outputs);
1136         wl_list_init(&ivi.surfaces);
1137         wl_list_init(&ivi.pending_surfaces);
1138
1139         /* Prevent any clients we spawn getting our stdin */
1140         os_fd_set_cloexec(STDIN_FILENO);
1141
1142         parse_options(core_options, ARRAY_LENGTH(core_options), &argc, argv);
1143
1144         if (help)
1145                 usage(EXIT_SUCCESS);
1146
1147         if (version) {
1148                 printf(PACKAGE_STRING "\n");
1149                 return EXIT_SUCCESS;
1150         }
1151
1152         log_ctx = weston_log_ctx_compositor_create();
1153         if (!log_ctx) {
1154                 fprintf(stderr, "Failed to initialize weston debug framework.\n");
1155                 return EXIT_FAILURE;
1156         }
1157
1158         log_scope = weston_compositor_add_log_scope(log_ctx, "log",
1159                                                     "agl-compositor log\n",
1160                                                     NULL, NULL);
1161
1162         log_file_open(log);
1163         weston_log_set_handler(vlog, vlog_continue);
1164
1165         logger = weston_log_subscriber_create_log(logfile);
1166
1167         if (load_config(&ivi.config, no_config, config_file) < 0)
1168                 goto error_signals;
1169         section = weston_config_get_section(ivi.config, "core", NULL, NULL);
1170         if (!backend) {
1171                 weston_config_section_get_string(section, "backend", &backend,
1172                                                  NULL);
1173                 if (!backend)
1174                         backend = choose_default_backend();
1175         }
1176
1177         ivi_compositor_get_quirks(&ivi);
1178
1179         display = wl_display_create();
1180         loop = wl_display_get_event_loop(display);
1181
1182         wl_display_set_global_filter(display,
1183                                      global_filter, &ivi);
1184
1185         /* Register signal handlers so we shut down cleanly */
1186
1187         signals[0] = wl_event_loop_add_signal(loop, SIGTERM, on_term_signal,
1188                                               display);
1189         signals[1] = wl_event_loop_add_signal(loop, SIGINT, on_term_signal,
1190                                               display);
1191         signals[2] = wl_event_loop_add_signal(loop, SIGQUIT, on_term_signal,
1192                                               display);
1193
1194         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
1195                 if (!signals[i])
1196                         goto error_signals;
1197
1198         ivi.compositor = weston_compositor_create(display, log_ctx, &ivi);
1199         if (!ivi.compositor) {
1200                 weston_log("fatal: failed to create compositor.\n");
1201                 goto error_signals;
1202         }
1203
1204         if (compositor_init_config(ivi.compositor, ivi.config) < 0)
1205                 goto error_compositor;
1206
1207         if (load_backend(&ivi, backend, &argc, argv) < 0) {
1208                 weston_log("fatal: failed to create compositor backend.\n");
1209                 goto error_compositor;
1210         }
1211
1212         ivi.heads_changed.notify = heads_changed;
1213         weston_compositor_add_heads_changed_listener(ivi.compositor,
1214                                                      &ivi.heads_changed);
1215
1216         if (ivi_desktop_init(&ivi) < 0)
1217                 goto error_compositor;
1218
1219         if (ivi_shell_init(&ivi) < 0)
1220                 goto error_compositor;
1221
1222         add_bindings(ivi.compositor);
1223
1224         weston_compositor_flush_heads_changed(ivi.compositor);
1225
1226         ivi_shell_init_black_fs(&ivi);
1227
1228         if (create_listening_socket(display, socket_name) < 0)
1229                 goto error_compositor;
1230
1231         ivi.compositor->exit = handle_exit;
1232
1233         weston_compositor_wake(ivi.compositor);
1234
1235         ivi_shell_create_global(&ivi);
1236         ivi_launch_shell_client(&ivi);
1237         ivi_agl_systemd_notify(&ivi);
1238
1239         wl_display_run(display);
1240
1241         wl_display_destroy_clients(display);
1242
1243 error_compositor:
1244         weston_compositor_tear_down(ivi.compositor);
1245
1246         weston_compositor_log_scope_destroy(log_scope);
1247         log_scope = NULL;
1248
1249         weston_log_ctx_compositor_destroy(ivi.compositor);
1250         weston_compositor_destroy(ivi.compositor);
1251
1252         weston_log_subscriber_destroy_log(logger);
1253
1254 error_signals:
1255         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
1256                 if (signals[i])
1257                         wl_event_source_remove(signals[i]);
1258
1259         wl_display_destroy(display);
1260
1261         log_file_close();
1262         if (ivi.config)
1263                 weston_config_destroy(ivi.config);
1264 }