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-6/compositor-drm.h>
  40 #include <libweston-6/compositor-wayland.h>
  41 #include <libweston-6/compositor-x11.h>
  42 #include <libweston-6/compositor.h>
  43 #include <libweston-6/windowed-output-api.h>
  44 #include <libweston-6/config-parser.h>
  45
  46 #include "shared/os-compatibility.h"
  47
  48 #include "agl-shell-server-protocol.h"
  49
  50 struct ivi_compositor *
  51 to_ivi_compositor(struct weston_compositor *ec)
  52 {
  53         return weston_compositor_get_user_data(ec);
  54 }
  55
  56 static void
  57 handle_output_destroy(struct wl_listener *listener, void *data)
  58 {
  59         struct ivi_output *output;
  60
  61         output = wl_container_of(listener, output, output_destroy);
  62         assert(output->output == data);
  63
  64         output->output = NULL;
  65         wl_list_remove(&output->output_destroy.link);
  66 }
  67
  68 struct ivi_output *
  69 to_ivi_output(struct weston_output *o)
  70 {
  71         struct wl_listener *listener;
  72         struct ivi_output *output;
  73
  74         listener = weston_output_get_destroy_listener(o, handle_output_destroy);
  75         output = wl_container_of(listener, output, output_destroy);
  76
  77         return output;
  78 }
  79
  80 static struct ivi_output *
  81 ivi_ensure_output(struct ivi_compositor *ivi, char *name,
  82                   struct weston_config_section *config)
  83 {
  84         struct ivi_output *output = NULL;
  85         wl_list_for_each(output, &ivi->outputs, link) {
  86                 if (strcmp(output->name, name) == 0) {
  87                         free(name);
  88                         return output;
  89                 }
  90         }
  91
  92         output = zalloc(sizeof *output);
  93         if (!output) {
  94                 free(name);
  95                 return NULL;
  96         }
  97
  98         output->ivi = ivi;
  99         output->name = name;
 100         output->config = config;
 101
 102         output->output = weston_compositor_create_output(ivi->compositor, name);
 103         if (!output->output) {
 104                 free(output->name);
 105                 free(output);
 106                 return NULL;
 107         }
 108
 109         output->output_destroy.notify = handle_output_destroy;
 110         weston_output_add_destroy_listener(output->output,
 111                                            &output->output_destroy);
 112
 113         wl_list_insert(&ivi->outputs, &output->link);
 114         return output;
 115 }
 116
 117 static int
 118 count_heads(struct weston_output *output)
 119 {
 120         struct weston_head *iter = NULL;
 121         int n = 0;
 122
 123         while ((iter = weston_output_iterate_heads(output, iter)))
 124                 ++n;
 125
 126         return n;
 127 }
 128
 129 static void
 130 handle_head_destroy(struct wl_listener *listener, void *data)
 131 {
 132         struct weston_head *head = data;
 133         struct weston_output *output;
 134
 135         wl_list_remove(&listener->link);
 136         free(listener);
 137
 138         output = weston_head_get_output(head);
 139
 140         /* On shutdown path, the output might be already gone. */
 141         if (!output)
 142                 return;
 143
 144         /* We're the last head */
 145         if (count_heads(output) <= 1)
 146                 weston_output_destroy(output);
 147 }
 148
 149 static void
 150 add_head_destroyed_listener(struct weston_head *head)
 151 {
 152         /* We already have a destroy listener */
 153         if (weston_head_get_destroy_listener(head, handle_head_destroy))
 154                 return;
 155
 156         struct wl_listener *listener = zalloc(sizeof *listener);
 157         if (!listener)
 158                 return;
 159
 160         listener->notify = handle_head_destroy;
 161         weston_head_add_destroy_listener(head, listener);
 162 }
 163
 164 static int
 165 drm_configure_output(struct ivi_output *output)
 166 {
 167         struct ivi_compositor *ivi = output->ivi;
 168         struct weston_config_section *section = output->config;
 169         enum weston_drm_backend_output_mode mode =
 170                 WESTON_DRM_BACKEND_OUTPUT_PREFERRED;
 171         char *modeline = NULL;
 172         char *gbm_format = NULL;
 173         char *seat = NULL;
 174
 175         if (section) {
 176                 char *m;
 177                 weston_config_section_get_string(section, "mode", &m, "preferred");
 178
 179                 /* This should have been handled earlier */
 180                 assert(strcmp(m, "off") != 0);
 181
 182                 if (ivi->cmdline.use_current_mode || strcmp(m, "current") == 0) {
 183                         mode = WESTON_DRM_BACKEND_OUTPUT_CURRENT;
 184                 } else if (strcmp(m, "preferred") != 0) {
 185                         modeline = m;
 186                         m = NULL;
 187                 }
 188                 free(m);
 189
 190                 weston_config_section_get_string(section, "gbm-format",
 191                                                  &gbm_format, NULL);
 192
 193                 weston_config_section_get_string(section, "seat", &seat, "");
 194         }
 195
 196         if (ivi->drm_api->set_mode(output->output, mode, modeline) < 0) {
 197                 weston_log("Cannot configure output using weston_drm_output_api.\n");
 198                 free(modeline);
 199                 return -1;
 200         }
 201         free(modeline);
 202
 203         ivi->drm_api->set_gbm_format(output->output, gbm_format);
 204         free(gbm_format);
 205
 206         ivi->drm_api->set_seat(output->output, seat);
 207         free(seat);
 208
 209         return 0;
 210 }
 211
 212 #define WINDOWED_DEFAULT_WIDTH 1024
 213 #define WINDOWED_DEFAULT_HEIGHT 768
 214
 215 static int
 216 windowed_configure_output(struct ivi_output *output)
 217 {
 218         struct ivi_compositor *ivi = output->ivi;
 219         struct weston_config_section *section = output->config;
 220         int width = WINDOWED_DEFAULT_WIDTH;
 221         int height = WINDOWED_DEFAULT_HEIGHT;
 222
 223         if (section) {
 224                 char *mode;
 225
 226                 weston_config_section_get_string(section, "mode", &mode, NULL);
 227                 if (!mode || sscanf(mode, "%dx%d", &width, &height) != 2) {
 228                         weston_log("Invalid mode for output %s. Using defaults.\n",
 229                                    output->name);
 230                         width = WINDOWED_DEFAULT_WIDTH;
 231                         height = WINDOWED_DEFAULT_HEIGHT;
 232                 }
 233                 free(mode);
 234         }
 235
 236         if (ivi->cmdline.width)
 237                 width = ivi->cmdline.width;
 238         if (ivi->cmdline.height)
 239                 height = ivi->cmdline.height;
 240         if (ivi->cmdline.scale)
 241                 weston_output_set_scale(output->output, ivi->cmdline.scale);
 242
 243         if (ivi->window_api->output_set_size(output->output, width, height) < 0) {
 244                 weston_log("Cannot configure output '%s' using weston_windowed_output_api.\n",
 245                            output->name);
 246                 return -1;
 247         }
 248
 249         return 0;
 250 }
 251
 252 static int
 253 parse_transform(const char *transform, uint32_t *out)
 254 {
 255         static const struct { const char *name; uint32_t token; } transforms[] = {
 256                 { "normal",     WL_OUTPUT_TRANSFORM_NORMAL },
 257                 { "90",         WL_OUTPUT_TRANSFORM_90 },
 258                 { "180",        WL_OUTPUT_TRANSFORM_180 },
 259                 { "270",        WL_OUTPUT_TRANSFORM_270 },
 260                 { "flipped",    WL_OUTPUT_TRANSFORM_FLIPPED },
 261                 { "flipped-90", WL_OUTPUT_TRANSFORM_FLIPPED_90 },
 262                 { "flipped-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 },
 263                 { "flipped-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 },
 264         };
 265
 266         for (size_t i = 0; i < ARRAY_LENGTH(transforms); i++)
 267                 if (strcmp(transforms[i].name, transform) == 0) {
 268                         *out = transforms[i].token;
 269                         return 0;
 270                 }
 271
 272         *out = WL_OUTPUT_TRANSFORM_NORMAL;
 273         return -1;
 274 }
 275
 276 static int
 277 configure_output(struct ivi_output *output)
 278 {
 279         struct ivi_compositor *ivi = output->ivi;
 280         struct weston_config_section *section = output->config;
 281         int32_t scale = 1;
 282         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
 283
 284         /*
 285          * This can happen with the wayland backend with 'sprawl'. The config
 286          * is hard-coded, so we don't need to do anything.
 287          */
 288         if (!ivi->drm_api && !ivi->window_api)
 289                 return 0;
 290
 291         if (section) {
 292                 char *t;
 293
 294                 weston_config_section_get_int(section, "scale", &scale, 1);
 295                 weston_config_section_get_string(section, "transform", &t, "normal");
 296                 if (parse_transform(t, &transform) < 0)
 297                         weston_log("Invalid transform \"%s\" for output %s\n",
 298                                    t, output->name);
 299                 free(t);
 300         }
 301
 302         weston_output_set_scale(output->output, scale);
 303         weston_output_set_transform(output->output, transform);
 304
 305         if (ivi->drm_api)
 306                 return drm_configure_output(output);
 307         else
 308                 return windowed_configure_output(output);
 309 }
 310
 311 /*
 312  * Reorgainizes the output's add array into two sections.
 313  * add[0..ret-1] are the heads that failed to get attached.
 314  * add[ret..add_len] are the heads that were successfully attached.
 315  *
 316  * The order between elements in each section is stable.
 317  */
 318 static size_t
 319 try_attach_heads(struct ivi_output *output)
 320 {
 321         size_t fail_len = 0;
 322
 323         for (size_t i = 0; i < output->add_len; ++i) {
 324                 if (weston_output_attach_head(output->output, output->add[i]) < 0) {
 325                         struct weston_head *tmp = output->add[i];
 326                         memmove(&output->add[fail_len + 1], output->add[fail_len],
 327                                 sizeof output->add[0] * (i - fail_len));
 328                         output->add[fail_len++] = tmp;
 329                 }
 330         }
 331
 332         return fail_len;
 333 }
 334
 335 /*
 336  * Like try_attach_heads, this reorganizes the output's add array into a failed
 337  * and successful section.
 338  * i is the number of heads that already failed the previous step.
 339  */
 340 static size_t
 341 try_enable_output(struct ivi_output *output, size_t i)
 342 {
 343         for (; i < output->add_len; ++i) {
 344                 struct weston_head *head;
 345
 346                 if (weston_output_enable(output->output) == 0)
 347                         break;
 348
 349                 head = output->add[output->add_len - 1];
 350                 memmove(&output->add[i + 1], &output->add[i],
 351                         sizeof output->add[0] * (output->add_len - i));
 352                 output->add[i] = head;
 353
 354                 weston_head_detach(head);
 355         }
 356
 357         return i;
 358 }
 359
 360 static int
 361 try_attach_enable_heads(struct ivi_output *output)
 362 {
 363         size_t fail_len;
 364         assert(!output->output->enabled);
 365
 366         fail_len = try_attach_heads(output);
 367
 368         if (configure_output(output) < 0)
 369                 return -1;
 370
 371         fail_len = try_enable_output(output, fail_len);
 372
 373         /* All heads failed to be attached */
 374         if (fail_len == output->add_len)
 375                 return -1;
 376
 377         /* For each successful head attached */
 378         for (size_t i = fail_len; i < output->add_len; ++i)
 379                 add_head_destroyed_listener(output->add[i]);
 380
 381         output->add_len = fail_len;
 382         return 0;
 383 }
 384
 385 static int
 386 process_output(struct ivi_output *output)
 387 {
 388         if (output->output->enabled) {
 389                 output->add_len = try_attach_heads(output);
 390                 return output->add_len == 0 ? 0 : -1;
 391         }
 392
 393         return try_attach_enable_heads(output);
 394 }
 395
 396 static void
 397 head_disable(struct ivi_compositor *ivi, struct weston_head *head)
 398 {
 399         struct weston_output *output;
 400         struct ivi_output *ivi_output;
 401         struct wl_listener *listener;
 402
 403         output = weston_head_get_output(head);
 404         assert(output);
 405
 406         listener = weston_output_get_destroy_listener(output,
 407                                                       handle_output_destroy);
 408         assert(listener);
 409
 410         ivi_output = wl_container_of(listener, ivi_output, output_destroy);
 411         assert(ivi_output->output == output);
 412
 413         weston_head_detach(head);
 414         if (count_heads(ivi_output->output) == 0) {
 415                 weston_output_disable(ivi_output->output);
 416         }
 417 }
 418
 419 static struct weston_config_section *
 420 find_controlling_output_config(struct weston_config *config,
 421                                const char *name)
 422 {
 423         struct weston_config_section *section;
 424         char *same_as;
 425         int depth = 0;
 426
 427         same_as = strdup(name);
 428         do {
 429                 section = weston_config_get_section(config, "output",
 430                                                     "name", same_as);
 431                 if (!section && depth > 0)
 432                         weston_log("Configuration error: output section reffered"
 433                                    "to by same-as=%s not found.\n", same_as);
 434                 free(same_as);
 435
 436                 if (!section)
 437                         return NULL;
 438
 439                 if (depth++ > 8) {
 440                         weston_log("Configuration error: same-as nested too "
 441                                    "deep for output '%s'.\n", name);
 442                         return NULL;
 443                 }
 444
 445                 weston_config_section_get_string(section, "same-as",
 446                                                  &same_as, NULL);
 447         } while (same_as);
 448
 449         return section;
 450 }
 451
 452 static void
 453 head_prepare_enable(struct ivi_compositor *ivi, struct weston_head *head)
 454 {
 455         const char *name = weston_head_get_name(head);
 456         struct weston_config_section *section;
 457         struct ivi_output *output;
 458         char *output_name = NULL;
 459
 460         section = find_controlling_output_config(ivi->config, name);
 461         if (section) {
 462                 char *mode;
 463
 464                 weston_config_section_get_string(section, "mode", &mode, NULL);
 465                 if (mode && strcmp(mode, "off") == 0) {
 466                         free(mode);
 467                         return;
 468                 }
 469                 free(mode);
 470
 471                 weston_config_section_get_string(section, "name",
 472                                                  &output_name, NULL);
 473         } else {
 474                 output_name = strdup(name);
 475         }
 476
 477         if (!output_name)
 478                 return;
 479
 480         output = ivi_ensure_output(ivi, output_name, section);
 481         if (!output)
 482                 return;
 483
 484         if (output->add_len >= ARRAY_LENGTH(output->add))
 485                 return;
 486
 487         output->add[output->add_len++] = head;
 488 }
 489
 490 static void
 491 heads_changed(struct wl_listener *listener, void *arg)
 492 {
 493         struct weston_compositor *compositor = arg;
 494         struct weston_head *head = NULL;
 495         struct ivi_compositor *ivi = to_ivi_compositor(compositor);
 496         struct ivi_output *output;
 497
 498         while ((head = weston_compositor_iterate_heads(ivi->compositor, head))) {
 499                 bool connected = weston_head_is_connected(head);
 500                 bool enabled = weston_head_is_enabled(head);
 501                 bool changed = weston_head_is_device_changed(head);
 502                 bool non_desktop = weston_head_is_non_desktop(head);
 503
 504                 if (connected && !enabled && !non_desktop)
 505                         head_prepare_enable(ivi, head);
 506                 else if (!connected && enabled)
 507                         head_disable(ivi, head);
 508                 else if (enabled && changed)
 509                         weston_log("Detected a monitor change on head '%s', "
 510                                    "not bothering to do anything about it.\n",
 511                                    weston_head_get_name(head));
 512
 513                 weston_head_reset_device_changed(head);
 514         }
 515
 516         wl_list_for_each(output, &ivi->outputs, link) {
 517                 if (output->add_len == 0)
 518                         continue;
 519
 520                 if (process_output(output) < 0) {
 521                         output->add_len = 0;
 522                         ivi->init_failed = true;
 523                 }
 524         }
 525 }
 526
 527 static int
 528 load_drm_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 529 {
 530         struct weston_drm_backend_config config = {
 531                 .base = {
 532                         .struct_version = WESTON_DRM_BACKEND_CONFIG_VERSION,
 533                         .struct_size = sizeof config,
 534                 },
 535         };
 536         struct weston_config_section *section;
 537         int use_current_mode = 0;
 538         int use_pixman = 0;
 539         int use_shadow;
 540         int ret;
 541
 542         const struct weston_option options[] = {
 543                 { WESTON_OPTION_STRING, "seat", 0, &config.seat_id },
 544                 { WESTON_OPTION_INTEGER, "tty", 0, &config.tty },
 545                 { WESTON_OPTION_STRING, "drm-device", 0, &config.specific_device },
 546                 { WESTON_OPTION_BOOLEAN, "current-mode", 0, &use_current_mode },
 547                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman },
 548         };
 549
 550         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 551         config.use_pixman = use_pixman;
 552         ivi->cmdline.use_current_mode = use_current_mode;
 553
 554         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
 555         weston_config_section_get_string(section, "gbm-format",
 556                                          &config.gbm_format, NULL);
 557         weston_config_section_get_uint(section, "pageflip-timeout",
 558                                        &config.pageflip_timeout, 0);
 559         weston_config_section_get_bool(section, "pixman-shadow", &use_shadow, 1);
 560         config.use_pixman_shadow = use_shadow;
 561
 562         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_DRM,
 563                                              &config.base);
 564         if (ret < 0)
 565                 return ret;
 566
 567         ivi->drm_api = weston_drm_output_get_api(ivi->compositor);
 568         if (!ivi->drm_api) {
 569                 weston_log("Cannot use drm output api.\n");
 570                 ret = -1;
 571                 goto error;
 572         }
 573
 574 error:
 575         free(config.gbm_format);
 576         free(config.seat_id);
 577         return ret;
 578 }
 579
 580 static void
 581 windowed_parse_common_options(struct ivi_compositor *ivi, int *argc, char *argv[],
 582                               bool *use_pixman, bool *fullscreen, int *output_count)
 583 {
 584         struct weston_config_section *section;
 585         int pixman;
 586         int fs = 0;
 587
 588         const struct weston_option options[] = {
 589                 { WESTON_OPTION_INTEGER, "width", 0, &ivi->cmdline.width },
 590                 { WESTON_OPTION_INTEGER, "height", 0, &ivi->cmdline.height },
 591                 { WESTON_OPTION_INTEGER, "scale", 0, &ivi->cmdline.scale },
 592                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &pixman },
 593                 { WESTON_OPTION_BOOLEAN, "fullscreen", 0, &fs },
 594                 { WESTON_OPTION_INTEGER, "output-count", 0, output_count },
 595         };
 596
 597         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
 598         weston_config_section_get_bool(section, "use-pixman", &pixman, 0);
 599
 600         *output_count = 1;
 601         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 602         *use_pixman = pixman;
 603         *fullscreen = fs;
 604 }
 605
 606 static int
 607 windowed_create_outputs(struct ivi_compositor *ivi, int output_count,
 608                         const char *match_prefix, const char *name_prefix)
 609 {
 610         struct weston_config_section *section = NULL;
 611         const char *section_name;
 612         char *default_output = NULL;
 613         int i = 0;
 614         size_t match_len = strlen(match_prefix);
 615
 616         while (weston_config_next_section(ivi->config, &section, &section_name)) {
 617                 char *output_name;
 618
 619                 if (i >= output_count)
 620                         break;
 621
 622                 if (strcmp(section_name, "output") != 0)
 623                         continue;
 624
 625                 weston_config_section_get_string(section, "name", &output_name, NULL);
 626                 if (output_name == NULL)
 627                         continue;
 628                 if (strncmp(output_name, match_prefix, match_len) != 0) {
 629                         free(output_name);
 630                         continue;
 631                 }
 632
 633                 if (ivi->window_api->create_head(ivi->compositor, output_name) < 0) {
 634                         free(output_name);
 635                         return -1;
 636                 }
 637
 638                 free(output_name);
 639                 ++i;
 640         }
 641
 642         for (; i < output_count; ++i) {
 643                 if (asprintf(&default_output, "%s%d", name_prefix, i) < 0)
 644                         return -1;
 645
 646                 if (ivi->window_api->create_head(ivi->compositor, default_output) < 0) {
 647                         free(default_output);
 648                         return -1;
 649                 }
 650
 651                 free(default_output);
 652         }
 653
 654         return 0;
 655 }
 656
 657 static int
 658 load_wayland_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 659 {
 660         struct weston_wayland_backend_config config = {
 661                 .base = {
 662                         .struct_version = WESTON_WAYLAND_BACKEND_CONFIG_VERSION,
 663                         .struct_size = sizeof config,
 664                 },
 665         };
 666         struct weston_config_section *section;
 667         int sprawl = 0;
 668         int output_count;
 669         int ret;
 670
 671         const struct weston_option options[] = {
 672                 { WESTON_OPTION_STRING, "display", 0, &config.display_name },
 673                 { WESTON_OPTION_STRING, "sprawl", 0, &sprawl },
 674         };
 675
 676         windowed_parse_common_options(ivi, argc, argv, &config.use_pixman,
 677                                       &config.fullscreen, &output_count);
 678
 679         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 680         config.sprawl = sprawl;
 681
 682         section = weston_config_get_section(ivi->config, "shell", NULL, NULL);
 683         weston_config_section_get_string(section, "cursor-theme",
 684                                          &config.cursor_theme, NULL);
 685         weston_config_section_get_int(section, "cursor-size",
 686                                       &config.cursor_size, 32);
 687
 688         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_WAYLAND,
 689                                              &config.base);
 690
 691         free(config.cursor_theme);
 692         free(config.display_name);
 693
 694         if (ret < 0)
 695                 return ret;
 696
 697         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
 698
 699         /*
 700          * We will just assume if load_backend() finished cleanly and
 701          * windowed_output_api is not present that wayland backend is started
 702          * with --sprawl or runs on fullscreen-shell. In this case, all values
 703          * are hardcoded, so nothing can be configured; simply create and
 704          * enable an output.
 705          */
 706         if (ivi->window_api == NULL)
 707                 return 0;
 708
 709         return windowed_create_outputs(ivi, output_count, "WL", "wayland");
 710 }
 711
 712 static int
 713 load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 714 {
 715         struct weston_x11_backend_config config = {
 716                 .base = {
 717                         .struct_version = WESTON_X11_BACKEND_CONFIG_VERSION,
 718                         .struct_size = sizeof config,
 719                 },
 720         };
 721         int no_input = 0;
 722         int output_count;
 723         int ret;
 724
 725         const struct weston_option options[] = {
 726                { WESTON_OPTION_BOOLEAN, "no-input", 0, &no_input },
 727         };
 728
 729         windowed_parse_common_options(ivi, argc, argv, &config.use_pixman,
 730                                       &config.fullscreen, &output_count);
 731
 732         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 733         config.no_input = no_input;
 734
 735         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_X11,
 736                                              &config.base);
 737
 738         if (ret < 0)
 739                 return ret;
 740
 741         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
 742         if (!ivi->window_api) {
 743                 weston_log("Cannot use weston_windowed_output_api.\n");
 744                 return -1;
 745         }
 746
 747         return windowed_create_outputs(ivi, output_count, "X", "screen");
 748 }
 749
 750 static int
 751 load_backend(struct ivi_compositor *ivi, const char *backend,
 752              int *argc, char *argv[])
 753 {
 754         if (strcmp(backend, "drm-backend.so") == 0) {
 755                 return load_drm_backend(ivi, argc, argv);
 756         } else if (strcmp(backend, "wayland-backend.so") == 0) {
 757                 return load_wayland_backend(ivi, argc, argv);
 758         } else if (strcmp(backend, "x11-backend.so") == 0) {
 759                 return load_x11_backend(ivi, argc, argv);
 760         }
 761
 762         weston_log("fatal: unknown backend '%s'.\n", backend);
 763         return -1;
 764 }
 765
 766 static char *
 767 choose_default_backend(void)
 768 {
 769         char *backend = NULL;
 770
 771         if (getenv("WAYLAND_DISPLAY") || getenv("WAYLAND_SOCKET"))
 772                 backend = strdup("wayland-backend.so");
 773         else if (getenv("DISPLAY"))
 774                 backend = strdup("x11-backend.so");
 775         else
 776                 backend = strdup("drm-backend.so");
 777
 778         return backend;
 779 }
 780
 781 static int
 782 compositor_init_config(struct weston_compositor *compositor,
 783                        struct weston_config *config)
 784 {
 785         struct xkb_rule_names xkb_names;
 786         struct weston_config_section *section;
 787         int repaint_msec;
 788         int vt_switching;
 789         int require_input;
 790
 791         /* agl-compositor.ini [keyboard] */
 792         section = weston_config_get_section(config, "keyboard", NULL, NULL);
 793         weston_config_section_get_string(section, "keymap_rules",
 794                                          (char **) &xkb_names.rules, NULL);
 795         weston_config_section_get_string(section, "keymap_model",
 796                                          (char **) &xkb_names.model, NULL);
 797         weston_config_section_get_string(section, "keymap_layout",
 798                                          (char **) &xkb_names.layout, NULL);
 799         weston_config_section_get_string(section, "keymap_variant",
 800                                          (char **) &xkb_names.variant, NULL);
 801         weston_config_section_get_string(section, "keymap_options",
 802                                          (char **) &xkb_names.options, NULL);
 803
 804         if (weston_compositor_set_xkb_rule_names(compositor, &xkb_names) < 0)
 805                 return -1;
 806
 807         weston_config_section_get_int(section, "repeat-rate",
 808                                       &compositor->kb_repeat_rate, 40);
 809         weston_config_section_get_int(section, "repeat-delay",
 810                                       &compositor->kb_repeat_delay, 400);
 811
 812         weston_config_section_get_bool(section, "vt-switching",
 813                                        &vt_switching, true);
 814         compositor->vt_switching = vt_switching;
 815
 816         /* agl-compositor.ini [core] */
 817         section = weston_config_get_section(config, "core", NULL, NULL);
 818
 819         weston_config_section_get_bool(section, "require-input", &require_input, true);
 820         compositor->require_input = require_input;
 821
 822         weston_config_section_get_int(section, "repaint-window", &repaint_msec,
 823                                       compositor->repaint_msec);
 824         if (repaint_msec < -10 || repaint_msec > 1000) {
 825                 weston_log("Invalid repaint_window value in config: %d\n",
 826                            repaint_msec);
 827         } else {
 828                 compositor->repaint_msec = repaint_msec;
 829         }
 830         weston_log("Output repaint window is %d ms maximum.\n",
 831                    compositor->repaint_msec);
 832
 833         return 0;
 834 }
 835
 836 struct ivi_surface *
 837 to_ivi_surface(struct weston_surface *surface)
 838 {
 839         struct weston_desktop_surface *dsurface;
 840
 841         dsurface = weston_surface_get_desktop_surface(surface);
 842         if (!dsurface)
 843                 return NULL;
 844
 845         return weston_desktop_surface_get_user_data(dsurface);
 846 }
 847
 848 static void
 849 activate_binding(struct weston_seat *seat,
 850                  struct weston_view *focus_view)
 851 {
 852         struct weston_surface *focus = focus_view->surface;
 853         struct weston_surface *main_surface =
 854                 weston_surface_get_main_surface(focus);
 855         struct ivi_surface *surface;
 856
 857         surface = to_ivi_surface(main_surface);
 858         if (!surface)
 859                 return;
 860
 861         weston_seat_set_keyboard_focus(seat, focus);
 862 }
 863
 864 static void
 865 click_to_activate_binding(struct weston_pointer *pointer,
 866                           const struct timespec *time,
 867                           uint32_t button, void *data)
 868 {
 869         if (pointer->grab != &pointer->default_grab)
 870                 return;
 871         if (pointer->focus == NULL)
 872                 return;
 873
 874         activate_binding(pointer->seat, pointer->focus);
 875 }
 876
 877 static void
 878 touch_to_activate_binding(struct weston_touch *touch,
 879                           const struct timespec *time,
 880                           void *data)
 881 {
 882         if (touch->grab != &touch->default_grab)
 883                 return;
 884         if (touch->focus == NULL)
 885                 return;
 886
 887         activate_binding(touch->seat, touch->focus);
 888 }
 889
 890 static void
 891 add_bindings(struct weston_compositor *compositor)
 892 {
 893         weston_compositor_add_button_binding(compositor, BTN_LEFT, 0,
 894                                              click_to_activate_binding,
 895                                              NULL);
 896         weston_compositor_add_button_binding(compositor, BTN_RIGHT, 0,
 897                                              click_to_activate_binding,
 898                                              NULL);
 899         weston_compositor_add_touch_binding(compositor, 0,
 900                                             touch_to_activate_binding,
 901                                             NULL);
 902 }
 903
 904 static int
 905 create_listening_socket(struct wl_display *display, const char *socket_name)
 906 {
 907         if (socket_name) {
 908                 if (wl_display_add_socket(display, socket_name)) {
 909                         weston_log("fatal: failed to add socket: %s\n",
 910                                    strerror(errno));
 911                         return -1;
 912                 }
 913         } else {
 914                 socket_name = wl_display_add_socket_auto(display);
 915                 if (!socket_name) {
 916                         weston_log("fatal: failed to add socket: %s\n",
 917                                    strerror(errno));
 918                         return -1;
 919                 }
 920         }
 921
 922         setenv("WAYLAND_DISPLAY", socket_name, 1);
 923
 924         return 0;
 925 }
 926
 927 static bool
 928 global_filter(const struct wl_client *client, const struct wl_global *global,
 929               void *data)
 930 {
 931         return true;
 932 }
 933
 934 static int
 935 load_config(struct weston_config **config, bool no_config,
 936             const char *config_file)
 937 {
 938         const char *file = "agl-compositor.ini";
 939         const char *full_path;
 940
 941         if (config_file)
 942                 file = config_file;
 943
 944         if (!no_config)
 945                 *config = weston_config_parse(file);
 946
 947         if (*config) {
 948                 full_path = weston_config_get_full_path(*config);
 949
 950                 weston_log("Using config file '%s'.\n", full_path);
 951                 setenv(WESTON_CONFIG_FILE_ENV_VAR, full_path, 1);
 952
 953                 return 0;
 954         }
 955
 956         if (config_file && !no_config) {
 957                 weston_log("fatal: error opening or reading config file '%s'.\n",
 958                         config_file);
 959
 960                 return -1;
 961         }
 962
 963         weston_log("Starting with no config file.\n");
 964         setenv(WESTON_CONFIG_FILE_ENV_VAR, "", 1);
 965
 966         return 0;
 967 }
 968
 969 static FILE *logfile;
 970 //static struct weston_log_scope *log_scope;
 971 //static struct weston_log_scope *protocol_scope;
 972
 973 static int
 974 log_timestamp(void)
 975 {
 976         static int cached_tm_mday = -1;
 977         struct timespec ts;
 978         struct tm brokendown_time;
 979         char buf[128];
 980
 981         clock_gettime(CLOCK_REALTIME, &ts);
 982         if (!localtime_r(&ts.tv_sec, &brokendown_time))
 983                 return fprintf(logfile, "[(NULL)localtime] ");
 984
 985         if (brokendown_time.tm_mday != cached_tm_mday) {
 986                 strftime(buf, sizeof buf, "%Y-%m-%d %Z", &brokendown_time);
 987                 fprintf(logfile, "Date: %s\n", buf);
 988
 989                 cached_tm_mday = brokendown_time.tm_mday;
 990         }
 991
 992         strftime(buf, sizeof buf, "%H:%M:%S", &brokendown_time);
 993
 994         return fprintf(logfile, "[%s.%03ld] ", buf, ts.tv_nsec / 1000000);
 995 }
 996
 997 static void
 998 custom_handler(const char *fmt, va_list arg)
 999 {
1000         log_timestamp();
1001         fprintf(logfile, "libwayland: ");
1002         vfprintf(logfile, fmt, arg);
1003 }
1004
1005 static void
1006 log_file_open(const char *filename)
1007 {
1008         wl_log_set_handler_server(custom_handler);
1009
1010         if (filename)
1011                 logfile = fopen(filename, "a");
1012
1013         if (!logfile) {
1014                 logfile = stderr;
1015         } else {
1016                 os_fd_set_cloexec(fileno(logfile));
1017                 setvbuf(logfile, NULL, _IOLBF, 256);
1018         }
1019 }
1020
1021 static void
1022 log_file_close(void)
1023 {
1024         if (logfile && logfile != stderr)
1025                 fclose(logfile);
1026         logfile = stderr;
1027 }
1028
1029 static int
1030 vlog(const char *fmt, va_list ap)
1031 {
1032         int l;
1033
1034         l = log_timestamp();
1035         l += vfprintf(logfile, fmt, ap);
1036
1037         return l;
1038 }
1039
1040 static int
1041 vlog_continue(const char *fmt, va_list ap)
1042 {
1043         return vfprintf(logfile, fmt, ap);
1044 }
1045
1046 static int
1047 on_term_signal(int signo, void *data)
1048 {
1049         struct wl_display *display = data;
1050
1051         weston_log("caught signal %d\n", signo);
1052         wl_display_terminate(display);
1053
1054         return 1;
1055 }
1056
1057 static void
1058 handle_exit(struct weston_compositor *compositor)
1059 {
1060         wl_display_terminate(compositor->wl_display);
1061 }
1062
1063 static void
1064 usage(int error_code)
1065 {
1066         FILE *out = error_code == EXIT_SUCCESS ? stdout : stderr;
1067         fprintf(out,
1068                 "Usage: agl-compositor [OPTIONS]\n"
1069                 "\n"
1070                 "This is " PACKAGE_STRING ", the reference compositor for\n"
1071                 "Automotive Grade Linux. Weston-ivi supports multiple backends, and depending\n"
1072                 "on which backend is in use different options will be accepted.\n"
1073                 "\n"
1074                 "Core options:\n"
1075                 "\n"
1076                 "  --version\t\tPrint agl-compositor version\n"
1077                 "  -B, --backend=MODULE\tBackend module, one of\n"
1078                         "\t\t\t\tdrm-backend.so\n"
1079                         "\t\t\t\twayland-backend.so\n"
1080                         "\t\t\t\tx11-backend.so\n"
1081                 "  -S, --socket=NAME\tName of socket to listen on\n"
1082                 "  --log=FILE\t\tLog to the given file\n"
1083                 "  -c, --config=FILE\tConfig file to load, defaults to agl-compositor.ini\n"
1084                 "  --no-config\t\tDo not read agl-compositor.ini\n"
1085                 "  --debug\t\tEnable debug extension\n"
1086                 "  -h, --help\t\tThis help message\n"
1087                 "\n");
1088         exit(error_code);
1089 }
1090
1091 int main(int argc, char *argv[])
1092 {
1093         struct ivi_compositor ivi = { 0 };
1094         struct wl_display *display;
1095         struct wl_event_loop *loop;
1096         struct wl_event_source *signals[3] = { 0 };
1097         struct weston_config_section *section;
1098         /* Command line options */
1099         char *backend = NULL;
1100         char *socket_name = NULL;
1101         char *log = NULL;
1102         int help = 0;
1103         int version = 0;
1104         int no_config = 0;
1105         char *config_file = NULL;
1106         int debug_protocol = 0;
1107
1108         const struct weston_option core_options[] = {
1109                 { WESTON_OPTION_STRING, "backend", 'B', &backend },
1110                 { WESTON_OPTION_STRING, "socket", 'S', &socket_name },
1111                 { WESTON_OPTION_STRING, "log", 0, &log },
1112                 { WESTON_OPTION_BOOLEAN, "help", 'h', &help },
1113                 { WESTON_OPTION_BOOLEAN, "version", 0, &version },
1114                 { WESTON_OPTION_BOOLEAN, "no-config", 0, &no_config },
1115                 { WESTON_OPTION_STRING, "config", 'c', &config_file },
1116                 { WESTON_OPTION_BOOLEAN, "debug", 0, &debug_protocol },
1117         };
1118
1119         wl_list_init(&ivi.outputs);
1120         wl_list_init(&ivi.surfaces);
1121         wl_list_init(&ivi.pending_surfaces);
1122
1123         /* Prevent any clients we spawn getting our stdin */
1124         os_fd_set_cloexec(STDIN_FILENO);
1125
1126         parse_options(core_options, ARRAY_LENGTH(core_options), &argc, argv);
1127
1128         if (help)
1129                 usage(EXIT_SUCCESS);
1130
1131         if (version) {
1132                 printf(PACKAGE_STRING "\n");
1133                 return EXIT_SUCCESS;
1134         }
1135
1136         log_file_open(log);
1137         weston_log_set_handler(vlog, vlog_continue);
1138
1139         if (load_config(&ivi.config, no_config, config_file) < 0)
1140                 goto error_signals;
1141         section = weston_config_get_section(ivi.config, "core", NULL, NULL);
1142         if (!backend) {
1143                 weston_config_section_get_string(section, "backend", &backend,
1144                                                  NULL);
1145                 if (!backend)
1146                         backend = choose_default_backend();
1147         }
1148
1149         display = wl_display_create();
1150         loop = wl_display_get_event_loop(display);
1151
1152         wl_display_set_global_filter(display,
1153                                      global_filter, &ivi);
1154
1155         /* Register signal handlers so we shut down cleanly */
1156
1157         signals[0] = wl_event_loop_add_signal(loop, SIGTERM, on_term_signal,
1158                                               display);
1159         signals[1] = wl_event_loop_add_signal(loop, SIGINT, on_term_signal,
1160                                               display);
1161         signals[2] = wl_event_loop_add_signal(loop, SIGQUIT, on_term_signal,
1162                                               display);
1163
1164         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
1165                 if (!signals[i])
1166                         goto error_signals;
1167
1168         ivi.compositor = weston_compositor_create(display, &ivi);
1169         if (!ivi.compositor) {
1170                 weston_log("fatal: failed to create compositor.\n");
1171                 goto error_signals;
1172         }
1173
1174         if (compositor_init_config(ivi.compositor, ivi.config) < 0)
1175                 goto error_compositor;
1176
1177         if (load_backend(&ivi, backend, &argc, argv) < 0) {
1178                 weston_log("fatal: failed to create compositor backend.\n");
1179                 goto error_compositor;
1180         }
1181
1182         ivi.heads_changed.notify = heads_changed;
1183         weston_compositor_add_heads_changed_listener(ivi.compositor,
1184                                                      &ivi.heads_changed);
1185
1186         if (ivi_desktop_init(&ivi) < 0)
1187                 goto error_compositor;
1188
1189         if (ivi_shell_init(&ivi) < 0)
1190                 goto error_compositor;
1191
1192         add_bindings(ivi.compositor);
1193
1194         weston_compositor_flush_heads_changed(ivi.compositor);
1195
1196         if (create_listening_socket(display, socket_name) < 0)
1197                 goto error_compositor;
1198
1199         ivi.compositor->exit = handle_exit;
1200
1201         weston_compositor_wake(ivi.compositor);
1202
1203         ivi_shell_create_global(&ivi);
1204         ivi_launch_shell_client(&ivi);
1205
1206         wl_display_run(display);
1207
1208         wl_display_destroy_clients(display);
1209
1210 error_compositor:
1211         weston_compositor_destroy(ivi.compositor);
1212
1213 error_signals:
1214         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
1215                 if (signals[i])
1216                         wl_event_source_remove(signals[i]);
1217
1218         wl_display_destroy(display);
1219
1220         log_file_close();
1221         if (ivi.config)
1222                 weston_config_destroy(ivi.config);
1223 }