src/compositor.c

   1 /*
   2  * Copyright © 2012-2024 Collabora, Ltd.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining
   5  * a copy of this software and associated documentation files (the
   6  * "Software"), to deal in the Software without restriction, including
   7  * without limitation the rights to use, copy, modify, merge, publish,
   8  * distribute, sublicense, and/or sell copies of the Software, and to
   9  * permit persons to whom the Software is furnished to do so, subject to
  10  * the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial
  14  * portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19  * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  20  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  21  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  */
  25
  26 #include "ivi-compositor.h"
  27 #include "policy.h"
  28
  29 #include <assert.h>
  30 #include <errno.h>
  31 #include <signal.h>
  32 #include <stdarg.h>
  33 #include <stdbool.h>
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <unistd.h>
  38 #include <linux/input.h>
  39
  40 #include <libweston/backend-drm.h>
  41 #include <libweston/backend-wayland.h>
  42 #ifdef HAVE_BACKEND_RDP
  43 #include <libweston/backend-rdp.h>
  44 #endif
  45 #ifdef HAVE_BACKEND_X11
  46 #include <libweston/backend-x11.h>
  47 #endif
  48 #include <libweston/libweston.h>
  49 #include <libweston/windowed-output-api.h>
  50 #include <libweston/config-parser.h>
  51 #include <libweston/weston-log.h>
  52 #include <weston.h>
  53
  54 #include "shared/os-compatibility.h"
  55 #include "shared/helpers.h"
  56
  57 #include "config.h"
  58 #include "agl-shell-server-protocol.h"
  59
  60 #ifdef HAVE_REMOTING
  61 #include "remote.h"
  62 #endif
  63
  64 static int cached_tm_mday = -1;
  65 static struct weston_log_scope *log_scope;
  66
  67 struct ivi_compositor *
  68 to_ivi_compositor(struct weston_compositor *ec)
  69 {
  70         return weston_compositor_get_user_data(ec);
  71 }
  72
  73 struct ivi_output_config *
  74 ivi_init_parsed_options(struct weston_compositor *compositor)
  75 {
  76         struct ivi_compositor *ivi = to_ivi_compositor(compositor);
  77         struct ivi_output_config *config;
  78
  79         config = zalloc(sizeof *config);
  80         if (!config)
  81                 return NULL;
  82
  83         config->width = 0;
  84         config->height = 0;
  85         config->scale = 0;
  86         config->transform = UINT32_MAX;
  87
  88         ivi->parsed_options = config;
  89
  90         return config;
  91 }
  92
  93 static void
  94 sigint_helper(int sig)
  95 {
  96        raise(SIGUSR2);
  97 }
  98
  99 struct {
 100         char *name;
 101         enum weston_renderer_type renderer;
 102 } renderer_name_map[] = {
 103         { "auto", WESTON_RENDERER_AUTO },
 104         { "gl", WESTON_RENDERER_GL },
 105         { "noop", WESTON_RENDERER_NOOP },
 106         { "pixman", WESTON_RENDERER_PIXMAN },
 107 };
 108
 109 struct {
 110         char *short_name;
 111         char *long_name;
 112         enum weston_compositor_backend backend;
 113 } backend_name_map[] = {
 114         { "drm", "drm-backend.so", WESTON_BACKEND_DRM },
 115         { "rdp", "rdp-backend.so", WESTON_BACKEND_RDP },
 116         { "wayland", "wayland-backend.so", WESTON_BACKEND_WAYLAND },
 117         { "x11", "x11-backend.so", WESTON_BACKEND_X11 },
 118 };
 119
 120 bool
 121 get_backend_from_string(const char *name,
 122                 enum weston_compositor_backend *backend)
 123 {
 124         size_t i;
 125
 126         for (i = 0; i < ARRAY_LENGTH(backend_name_map); i++) {
 127                 if (strcmp(name, backend_name_map[i].short_name) == 0 ||
 128                                 strcmp(name, backend_name_map[i].long_name) == 0) {
 129                         *backend = backend_name_map[i].backend;
 130                         return true;
 131                 }
 132         }
 133
 134         return false;
 135 }
 136
 137 bool
 138 get_renderer_from_string(const char *name, enum weston_renderer_type *renderer)
 139 {
 140         size_t i;
 141
 142         if (!name)
 143                 name = "auto";
 144
 145         for (i = 0; i < ARRAY_LENGTH(renderer_name_map); i++) {
 146                 if (strcmp(name, renderer_name_map[i].name) == 0) {
 147                         *renderer = renderer_name_map[i].renderer;
 148                         return true;
 149                 }
 150         }
 151
 152         return false;
 153 }
 154
 155 static void
 156 handle_output_destroy(struct wl_listener *listener, void *data)
 157 {
 158         struct ivi_output *output;
 159
 160         output = wl_container_of(listener, output, output_destroy);
 161         assert(output->output == data);
 162
 163         if (output->fullscreen_view.fs &&
 164             output->fullscreen_view.fs->view) {
 165                 weston_surface_unref(output->fullscreen_view.fs->view->surface);
 166                 weston_buffer_destroy_solid(output->fullscreen_view.buffer_ref);
 167                 output->fullscreen_view.fs->view = NULL;
 168         }
 169
 170         ivi_layout_save(output->ivi, output);
 171
 172         output->output = NULL;
 173         wl_list_remove(&output->output_destroy.link);
 174 }
 175
 176 struct ivi_output *
 177 to_ivi_output(struct weston_output *o)
 178 {
 179         struct wl_listener *listener;
 180         struct ivi_output *output;
 181
 182         listener = weston_output_get_destroy_listener(o, handle_output_destroy);
 183         output = wl_container_of(listener, output, output_destroy);
 184
 185         return output;
 186 }
 187
 188 static void
 189 ivi_output_configure_app_id(struct ivi_output *ivi_output)
 190 {
 191         if (ivi_output->config) {
 192                 if (ivi_output->app_ids != NULL)
 193                         return;
 194
 195                 weston_config_section_get_string(ivi_output->config,
 196                                                  "agl-shell-app-id",
 197                                                  &ivi_output->app_ids,
 198                                                  NULL);
 199
 200                 if (ivi_output->app_ids == NULL)
 201                         return;
 202
 203                 weston_log("Will place app_id %s on output %s\n",
 204                                 ivi_output->app_ids, ivi_output->name);
 205         }
 206 }
 207
 208 static struct ivi_output *
 209 ivi_ensure_output(struct ivi_compositor *ivi, char *name,
 210                   struct weston_config_section *config,
 211                   struct weston_head *head)
 212 {
 213         struct ivi_output *output = NULL;
 214         wl_list_for_each(output, &ivi->outputs, link) {
 215                 if (strcmp(output->name, name) == 0) {
 216                         free(name);
 217                         return output;
 218                 }
 219         }
 220
 221         output = zalloc(sizeof *output);
 222         if (!output) {
 223                 free(name);
 224                 return NULL;
 225         }
 226
 227         output->ivi = ivi;
 228         output->name = name;
 229         output->config = config;
 230
 231         output->output =
 232                 weston_compositor_create_output(ivi->compositor, head, head->name);
 233         if (!output->output) {
 234                 free(output->name);
 235                 free(output);
 236                 return NULL;
 237         }
 238
 239         if (ivi->simple_output_configure) {
 240                 int ret = ivi->simple_output_configure(output->output);
 241                 if (ret < 0) {
 242                         weston_log("Configuring output \"%s\" failed.\n",
 243                                         weston_head_get_name(head));
 244                         weston_output_destroy(output->output);
 245                         ivi->init_failed = true;
 246                         return NULL;
 247                 }
 248
 249                 if (weston_output_enable(output->output) < 0) {
 250                         weston_log("Enabling output \"%s\" failed.\n",
 251                                         weston_head_get_name(head));
 252                         weston_output_destroy(output->output);
 253                         ivi->init_failed = true;
 254                         return NULL;
 255                 }
 256         }
 257
 258         output->output_destroy.notify = handle_output_destroy;
 259         weston_output_add_destroy_listener(output->output,
 260                                            &output->output_destroy);
 261
 262         wl_list_insert(&ivi->outputs, &output->link);
 263         ivi_output_configure_app_id(output);
 264         return output;
 265 }
 266
 267 static int
 268 count_heads(struct weston_output *output)
 269 {
 270         struct weston_head *iter = NULL;
 271         int n = 0;
 272
 273         while ((iter = weston_output_iterate_heads(output, iter)))
 274                 ++n;
 275
 276         return n;
 277 }
 278
 279 static void
 280 handle_head_destroy(struct wl_listener *listener, void *data)
 281 {
 282         struct weston_head *head = data;
 283         struct weston_output *output;
 284
 285         wl_list_remove(&listener->link);
 286         free(listener);
 287
 288         output = weston_head_get_output(head);
 289
 290         /* On shutdown path, the output might be already gone. */
 291         if (!output)
 292                 return;
 293
 294         /* We're the last head */
 295         if (count_heads(output) <= 1)
 296                 weston_output_destroy(output);
 297 }
 298
 299 static void
 300 add_head_destroyed_listener(struct weston_head *head)
 301 {
 302         /* We already have a destroy listener */
 303         if (weston_head_get_destroy_listener(head, handle_head_destroy))
 304                 return;
 305
 306         struct wl_listener *listener = zalloc(sizeof *listener);
 307         if (!listener)
 308                 return;
 309
 310         listener->notify = handle_head_destroy;
 311         weston_head_add_destroy_listener(head, listener);
 312 }
 313
 314 static int
 315 drm_configure_output(struct ivi_output *output)
 316 {
 317         struct ivi_compositor *ivi = output->ivi;
 318         struct weston_config_section *section = output->config;
 319         enum weston_drm_backend_output_mode mode =
 320                 WESTON_DRM_BACKEND_OUTPUT_PREFERRED;
 321         char *modeline = NULL;
 322         char *gbm_format = NULL;
 323         char *seat = NULL;
 324
 325         if (section) {
 326                 char *m;
 327                 weston_config_section_get_string(section, "mode", &m, "preferred");
 328
 329                 /* This should have been handled earlier */
 330                 assert(strcmp(m, "off") != 0);
 331
 332                 if (ivi->cmdline.use_current_mode || strcmp(m, "current") == 0) {
 333                         mode = WESTON_DRM_BACKEND_OUTPUT_CURRENT;
 334                 } else if (strcmp(m, "preferred") != 0) {
 335                         modeline = m;
 336                         m = NULL;
 337                 }
 338                 free(m);
 339
 340                 weston_config_section_get_string(section, "gbm-format",
 341                                                  &gbm_format, NULL);
 342
 343                 weston_config_section_get_string(section, "seat", &seat, "");
 344         }
 345
 346         if (ivi->drm_api->set_mode(output->output, mode, modeline) < 0) {
 347                 weston_log("Cannot configure output using weston_drm_output_api.\n");
 348                 free(modeline);
 349                 return -1;
 350         }
 351         free(modeline);
 352
 353         ivi->drm_api->set_gbm_format(output->output, gbm_format);
 354         free(gbm_format);
 355
 356         ivi->drm_api->set_seat(output->output, seat);
 357         free(seat);
 358
 359         return 0;
 360 }
 361
 362 #define WINDOWED_DEFAULT_WIDTH 1024
 363 #define WINDOWED_DEFAULT_HEIGHT 768
 364
 365 static int
 366 windowed_configure_output(struct ivi_output *output)
 367 {
 368         struct ivi_compositor *ivi = output->ivi;
 369         struct weston_config_section *section = output->config;
 370         int width = WINDOWED_DEFAULT_WIDTH;
 371         int height = WINDOWED_DEFAULT_HEIGHT;
 372
 373         if (section) {
 374                 char *mode;
 375
 376                 weston_config_section_get_string(section, "mode", &mode, NULL);
 377                 if (!mode || sscanf(mode, "%dx%d", &width, &height) != 2) {
 378                         weston_log("Invalid mode for output %s. Using defaults.\n",
 379                                    output->name);
 380                         width = WINDOWED_DEFAULT_WIDTH;
 381                         height = WINDOWED_DEFAULT_HEIGHT;
 382                 }
 383                 free(mode);
 384         }
 385
 386         if (ivi->cmdline.width)
 387                 width = ivi->cmdline.width;
 388         if (ivi->cmdline.height)
 389                 height = ivi->cmdline.height;
 390         if (ivi->cmdline.scale)
 391                 weston_output_set_scale(output->output, ivi->cmdline.scale);
 392
 393         if (ivi->window_api->output_set_size(output->output, width, height) < 0) {
 394                 weston_log("Cannot configure output '%s' using weston_windowed_output_api.\n",
 395                            output->name);
 396                 return -1;
 397         }
 398
 399         weston_log("Configured windowed_output_api to %dx%d\n", width, height);
 400
 401         return 0;
 402 }
 403
 404 static int
 405 parse_transform(const char *transform, uint32_t *out)
 406 {
 407         static const struct { const char *name; uint32_t token; } transforms[] = {
 408                 { "normal",             WL_OUTPUT_TRANSFORM_NORMAL },
 409                 { "rotate-90",          WL_OUTPUT_TRANSFORM_90 },
 410                 { "rotate-180",         WL_OUTPUT_TRANSFORM_180 },
 411                 { "rotate-270",         WL_OUTPUT_TRANSFORM_270 },
 412                 { "flipped",            WL_OUTPUT_TRANSFORM_FLIPPED },
 413                 { "flipped-rotate-90",  WL_OUTPUT_TRANSFORM_FLIPPED_90 },
 414                 { "flipped-rotate-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 },
 415                 { "flipped-rotate-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 },
 416         };
 417
 418         for (size_t i = 0; i < ARRAY_LENGTH(transforms); i++)
 419                 if (strcmp(transforms[i].name, transform) == 0) {
 420                         *out = transforms[i].token;
 421                         return 0;
 422                 }
 423
 424         *out = WL_OUTPUT_TRANSFORM_NORMAL;
 425         return -1;
 426 }
 427
 428 int
 429 parse_activation_area(const char *geometry, struct ivi_output *output)
 430 {
 431         int n;
 432         unsigned width, height, x, y;
 433
 434         n = sscanf(geometry, "%ux%u+%u,%u", &width, &height, &x, &y);
 435         if (n != 4) {
 436                 return -1;
 437         }
 438         output->area_activation.width = width;
 439         output->area_activation.height = height;
 440         output->area_activation.x = x;
 441         output->area_activation.y = y;
 442         return 0;
 443 }
 444
 445 static int
 446 configure_output(struct ivi_output *output)
 447 {
 448         struct ivi_compositor *ivi = output->ivi;
 449         struct weston_config_section *section = output->config;
 450         int32_t scale = 1;
 451         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
 452
 453         /*
 454          * This can happen with the wayland backend with 'sprawl'. The config
 455          * is hard-coded, so we don't need to do anything.
 456          */
 457         if (!ivi->drm_api && !ivi->window_api)
 458                 return 0;
 459
 460         if (section) {
 461                 char *t;
 462
 463                 weston_config_section_get_int(section, "scale", &scale, 1);
 464                 weston_config_section_get_string(section, "transform", &t, "normal");
 465                 if (parse_transform(t, &transform) < 0)
 466                         weston_log("Invalid transform \"%s\" for output %s\n",
 467                                    t, output->name);
 468                 weston_config_section_get_string(section, "activation-area", &t, "");
 469                 if (parse_activation_area(t, output) < 0)
 470                         weston_log("Invalid activation-area \"%s\" for output %s\n",
 471                                    t, output->name);
 472                 free(t);
 473         }
 474
 475         weston_output_set_scale(output->output, scale);
 476         weston_output_set_transform(output->output, transform);
 477
 478         if (ivi->drm_api)
 479                 return drm_configure_output(output);
 480         else
 481                 return windowed_configure_output(output);
 482 }
 483
 484 /*
 485  * Reorgainizes the output's add array into two sections.
 486  * add[0..ret-1] are the heads that failed to get attached.
 487  * add[ret..add_len] are the heads that were successfully attached.
 488  *
 489  * The order between elements in each section is stable.
 490  */
 491 static size_t
 492 try_attach_heads(struct ivi_output *output)
 493 {
 494         size_t fail_len = 0;
 495
 496         for (size_t i = 1; i < output->add_len; i++) {
 497                 if (weston_output_attach_head(output->output, output->add[i]) < 0) {
 498                         struct weston_head *tmp = output->add[i];
 499                         memmove(&output->add[fail_len + 1], output->add[fail_len],
 500                                 sizeof output->add[0] * (i - fail_len));
 501                         output->add[fail_len++] = tmp;
 502                 }
 503         }
 504         return fail_len;
 505 }
 506
 507 /* Place output exactly to the right of the most recently enabled output.
 508  *
 509  * Historically, we haven't given much thought to output placement,
 510  * simply adding outputs in a horizontal line as they're enabled. This
 511  * function simply sets an output's x coordinate to the right of the
 512  * most recently enabled output, and its y to zero.
 513  *
 514  * If you're adding new calls to this function, you're also not giving
 515  * much thought to output placement, so please consider carefully if
 516  * it's really doing what you want.
 517  *
 518  * You especially don't want to use this for any code that won't
 519  * immediately enable the passed output.
 520  */
 521 static void
 522 weston_output_lazy_align(struct weston_output *output)
 523 {
 524         struct weston_compositor *c;
 525         struct weston_output *peer;
 526         int next_x = 0;
 527
 528         /* Put this output to the right of the most recently enabled output */
 529         c = output->compositor;
 530         if (!wl_list_empty(&c->output_list)) {
 531                 peer = container_of(c->output_list.prev,
 532                                 struct weston_output, link);
 533                 next_x = peer->pos.c.x + peer->width;
 534         }
 535         output->pos.c.x = next_x;
 536         output->pos.c.y = 0;
 537 }
 538
 539
 540 /*
 541  * Like try_attach_heads, this reorganizes the output's add array into a failed
 542  * and successful section.
 543  * i is the number of heads that already failed the previous step.
 544  */
 545 static size_t
 546 try_enable_output(struct ivi_output *output, size_t i)
 547 {
 548         for (; i < output->add_len; ++i) {
 549                 struct weston_head *head;
 550
 551                 weston_output_lazy_align(output->output);
 552
 553                 if (weston_output_enable(output->output) == 0)
 554                         break;
 555
 556                 head = output->add[output->add_len - 1];
 557                 memmove(&output->add[i + 1], &output->add[i],
 558                         sizeof output->add[0] * (output->add_len - i));
 559                 output->add[i] = head;
 560
 561                 weston_head_detach(head);
 562         }
 563
 564         return i;
 565 }
 566
 567 static int
 568 try_attach_enable_heads(struct ivi_output *output)
 569 {
 570         size_t fail_len;
 571         assert(!output->output->enabled);
 572
 573         fail_len = try_attach_heads(output);
 574
 575         if (configure_output(output) < 0)
 576                 return -1;
 577
 578         fail_len = try_enable_output(output, fail_len);
 579
 580         /* All heads failed to be attached */
 581         if (fail_len == output->add_len)
 582                 return -1;
 583
 584         /* For each successful head attached */
 585         for (size_t i = fail_len; i < output->add_len; ++i)
 586                 add_head_destroyed_listener(output->add[i]);
 587
 588         ivi_layout_restore(output->ivi, output);
 589
 590         output->add_len = fail_len;
 591         return 0;
 592 }
 593
 594 static int
 595 process_output(struct ivi_output *output)
 596 {
 597         if (output->output->enabled) {
 598                 output->add_len = try_attach_heads(output);
 599                 return output->add_len == 0 ? 0 : -1;
 600         }
 601
 602         return try_attach_enable_heads(output);
 603 }
 604
 605 static void
 606 head_disable(struct ivi_compositor *ivi, struct weston_head *head)
 607 {
 608         struct weston_output *output;
 609         struct ivi_output *ivi_output;
 610         struct wl_listener *listener;
 611
 612         output = weston_head_get_output(head);
 613         assert(output);
 614
 615         listener = weston_output_get_destroy_listener(output,
 616                                                       handle_output_destroy);
 617         assert(listener);
 618
 619         ivi_output = wl_container_of(listener, ivi_output, output_destroy);
 620         assert(ivi_output->output == output);
 621
 622         weston_head_detach(head);
 623         if (count_heads(ivi_output->output) == 0) {
 624                 if (ivi_output->output) {
 625                         /* ivi_output->output destruction may be deferred in
 626                          * some cases (see drm_output_destroy()), so we need to
 627                          * forcibly trigger the destruction callback now, or
 628                          * otherwise would later access data that we are about
 629                          * to free
 630                          */
 631                         struct weston_output *save = ivi_output->output;
 632
 633                         handle_output_destroy(&ivi_output->output_destroy, save);
 634                         weston_output_destroy(save);
 635                 }
 636         }
 637         wl_list_remove(&ivi_output->link);
 638         free(ivi_output->app_ids);
 639         free(ivi_output);
 640 }
 641
 642 static struct weston_config_section *
 643 find_controlling_output_config(struct weston_config *config,
 644                                const char *name)
 645 {
 646         struct weston_config_section *section;
 647         char *same_as;
 648         int depth = 0;
 649
 650         same_as = strdup(name);
 651         do {
 652                 section = weston_config_get_section(config, "output",
 653                                                     "name", same_as);
 654                 if (!section && depth > 0)
 655                         weston_log("Configuration error: output section reffered"
 656                                    "to by same-as=%s not found.\n", same_as);
 657                 free(same_as);
 658
 659                 if (!section)
 660                         return NULL;
 661
 662                 if (depth++ > 8) {
 663                         weston_log("Configuration error: same-as nested too "
 664                                    "deep for output '%s'.\n", name);
 665                         return NULL;
 666                 }
 667
 668                 weston_config_section_get_string(section, "same-as",
 669                                                  &same_as, NULL);
 670         } while (same_as);
 671
 672         return section;
 673 }
 674
 675 static void
 676 head_prepare_enable(struct ivi_compositor *ivi, struct weston_head *head)
 677 {
 678         const char *name = weston_head_get_name(head);
 679         struct weston_config_section *section;
 680         struct ivi_output *output;
 681         char *output_name = NULL;
 682
 683
 684         section = find_controlling_output_config(ivi->config, name);
 685         if (section) {
 686                 char *mode;
 687
 688                 weston_config_section_get_string(section, "mode", &mode, NULL);
 689                 if (mode && strcmp(mode, "off") == 0) {
 690                         free(mode);
 691                         return;
 692                 }
 693                 free(mode);
 694
 695                 weston_config_section_get_string(section, "name",
 696                                                  &output_name, NULL);
 697         } else {
 698                 output_name = strdup(name);
 699         }
 700
 701         if (!output_name)
 702                 return;
 703
 704         output = ivi_ensure_output(ivi, output_name, section, head);
 705         if (!output)
 706                 return;
 707
 708         if (output->add_len >= ARRAY_LENGTH(output->add))
 709                 return;
 710
 711         output->add[output->add_len++] = head;
 712 }
 713
 714 static void
 715 heads_changed(struct wl_listener *listener, void *arg)
 716 {
 717         struct weston_compositor *compositor = arg;
 718         struct weston_head *head = NULL;
 719         struct ivi_compositor *ivi = to_ivi_compositor(compositor);
 720         struct ivi_output *output;
 721
 722         while ((head = weston_compositor_iterate_heads(ivi->compositor, head))) {
 723                 bool connected = weston_head_is_connected(head);
 724                 bool enabled = weston_head_is_enabled(head);
 725                 bool changed = weston_head_is_device_changed(head);
 726                 bool non_desktop = weston_head_is_non_desktop(head);
 727
 728                 if (connected && !enabled && !non_desktop)
 729                         head_prepare_enable(ivi, head);
 730                 else if (!connected && enabled)
 731                         head_disable(ivi, head);
 732                 else if (enabled && changed)
 733                         weston_log("Detected a monitor change on head '%s', "
 734                                    "not bothering to do anything about it.\n",
 735                                    weston_head_get_name(head));
 736
 737                 weston_head_reset_device_changed(head);
 738         }
 739
 740         wl_list_for_each(output, &ivi->outputs, link) {
 741                 if (output->add_len == 0)
 742                         continue;
 743
 744                 if (process_output(output) < 0) {
 745                         output->add_len = 0;
 746                         ivi->init_failed = true;
 747                 }
 748         }
 749 }
 750
 751 #ifdef HAVE_REMOTING
 752 static int
 753 drm_backend_remoted_output_configure(struct weston_output *output,
 754                                      struct weston_config_section *section,
 755                                      char *modeline,
 756                                      const struct weston_remoting_api *api)
 757 {
 758         char *gbm_format = NULL;
 759         char *seat = NULL;
 760         char *host = NULL;
 761         char *pipeline = NULL;
 762         int port, ret;
 763         int32_t scale = 1;
 764         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
 765         char *trans;
 766
 767         ret = api->set_mode(output, modeline);
 768         if (ret < 0) {
 769                 weston_log("Cannot configure an output \"%s\" using "
 770                                 "weston_remoting_api. Invalid mode\n",
 771                                 output->name);
 772                 return -1;
 773         }
 774
 775         weston_config_section_get_int(section, "scale", &scale, 1);
 776         weston_output_set_scale(output, scale);
 777
 778         weston_config_section_get_string(section, "transform", &trans, "normal");
 779         if (parse_transform(trans, &transform) < 0) {
 780                 weston_log("Invalid transform \"%s\" for output %s\n",
 781                            trans, output->name);
 782         }
 783         weston_output_set_transform(output, transform);
 784
 785         weston_config_section_get_string(section, "gbm-format",
 786                                          &gbm_format, NULL);
 787         api->set_gbm_format(output, gbm_format);
 788         free(gbm_format);
 789
 790         weston_config_section_get_string(section, "seat", &seat, "");
 791
 792         api->set_seat(output, seat);
 793         free(seat);
 794
 795         weston_config_section_get_string(section, "gst-pipeline", &pipeline,
 796                         NULL);
 797         if (pipeline) {
 798                 api->set_gst_pipeline(output, pipeline);
 799                 free(pipeline);
 800                 return 0;
 801         }
 802
 803         weston_config_section_get_string(section, "host", &host, NULL);
 804         weston_config_section_get_int(section, "port", &port, 0);
 805         if (!host || port <= 0 || 65533 < port) {
 806                 weston_log("Cannot configure an output \"%s\". "
 807                                 "Need to specify gst-pipeline or "
 808                                 "host and port (1-65533).\n", output->name);
 809         }
 810         api->set_host(output, host);
 811         free(host);
 812         api->set_port(output, port);
 813
 814         return 0;
 815 }
 816
 817
 818 static int
 819 remote_output_init(struct ivi_output *ivi_output,
 820                    struct weston_compositor *compositor,
 821                    struct weston_config_section *section,
 822                    const struct weston_remoting_api *api)
 823 {
 824         char *output_name, *modeline = NULL;
 825         int ret = -1;
 826
 827         weston_config_section_get_string(section, "name", &output_name, NULL);
 828         if (!output_name)
 829                 return ret;
 830
 831         weston_config_section_get_string(section, "mode", &modeline, "off");
 832         if (strcmp(modeline, "off") == 0)
 833                 goto err;
 834
 835         ivi_output->output = api->create_output(compositor, output_name);
 836         if (!ivi_output->output) {
 837                 weston_log("Cannot create remoted output \"%s\".\n",
 838                                 output_name);
 839                 goto err;
 840         }
 841
 842         ret = drm_backend_remoted_output_configure(ivi_output->output, section,
 843                                                    modeline, api);
 844         if (ret < 0) {
 845                 weston_log("Cannot configure remoted output \"%s\".\n",
 846                                 output_name);
 847                 goto err;
 848         }
 849
 850         if ((ret = weston_output_enable(ivi_output->output)) < 0) {
 851                 weston_log("Enabling remoted output \"%s\" failed.\n",
 852                                 output_name);
 853                 goto err;
 854         }
 855
 856         free(modeline);
 857         free(output_name);
 858         weston_log("remoted output '%s' enabled\n", ivi_output->output->name);
 859
 860         return 0;
 861
 862 err:
 863         free(modeline);
 864         free(output_name);
 865         if (ivi_output->output)
 866                 weston_output_destroy(ivi_output->output);
 867
 868         return ret;
 869 }
 870
 871 static void
 872 ivi_enable_remote_outputs(struct ivi_compositor *ivi)
 873 {
 874         struct weston_config_section *remote_section = NULL;
 875         const char *section_name;
 876         struct weston_config *config = ivi->config;
 877
 878         while (weston_config_next_section(config, &remote_section, &section_name)) {
 879                 if (strcmp(section_name, "remote-output"))
 880                         continue;
 881
 882                 struct ivi_output *ivi_output = NULL;
 883                 bool output_found = false;
 884                 char *_name = NULL;
 885
 886                 weston_config_section_get_string(remote_section,
 887                                                  "name", &_name, NULL);
 888                 wl_list_for_each(ivi_output, &ivi->outputs, link) {
 889                         if (!strcmp(ivi_output->name, _name)) {
 890                                 output_found = true;
 891                                 break;
 892                         }
 893                 }
 894
 895                 if (output_found) {
 896                         free(_name);
 897                         continue;
 898                 }
 899
 900                 ivi_output = zalloc(sizeof(*ivi_output));
 901                 if (!ivi_output) {
 902                         free(_name);
 903                         continue;
 904                 }
 905
 906                 ivi_output->ivi = ivi;
 907                 ivi_output->name = _name;
 908                 ivi_output->config = remote_section;
 909                 ivi_output->type = OUTPUT_REMOTE;
 910
 911                 if (remote_output_init(ivi_output, ivi->compositor,
 912                                        remote_section, ivi->remoting_api)) {
 913                         free(ivi_output->name);
 914                         free(ivi_output);
 915                         continue;
 916                 }
 917
 918                 ivi_output->output_destroy.notify = handle_output_destroy;
 919                 weston_output_add_destroy_listener(ivi_output->output,
 920                                                    &ivi_output->output_destroy);
 921
 922                 wl_list_insert(&ivi->outputs, &ivi_output->link);
 923                 ivi_output_configure_app_id(ivi_output);
 924         }
 925 }
 926
 927 static int
 928 load_remoting_plugin(struct ivi_compositor *ivi, struct weston_config *config)
 929 {
 930         struct weston_compositor *compositor = ivi->compositor;
 931         int (*module_init)(struct weston_compositor *wc);
 932
 933         module_init = weston_load_module("remoting-plugin.so",
 934                                          "weston_module_init",
 935                                          LIBWESTON_MODULEDIR);
 936         if (!module_init)
 937                 return -1;
 938
 939         if (module_init(compositor) < 0)
 940                 return -1;
 941
 942         ivi->remoting_api = weston_remoting_get_api(compositor);
 943         if (!ivi->remoting_api)
 944                 return -1;
 945         return 0;
 946 }
 947 #else
 948 static int
 949 load_remoting_plugin(struct weston_compositor *compositor, struct weston_config *config)
 950 {
 951         return -1;
 952 }
 953 #endif
 954
 955 static int
 956 load_drm_backend(struct ivi_compositor *ivi, int *argc, char *argv[],
 957                  enum weston_renderer_type renderer)
 958 {
 959         struct weston_drm_backend_config config = {
 960                 .base = {
 961                         .struct_version = WESTON_DRM_BACKEND_CONFIG_VERSION,
 962                         .struct_size = sizeof config,
 963                 },
 964         };
 965         struct weston_config_section *section;
 966         int use_current_mode = 0;
 967         bool force_pixman = false;
 968         bool use_shadow;
 969         bool without_input = false;
 970
 971         const struct weston_option options[] = {
 972                 { WESTON_OPTION_STRING, "seat", 0, &config.seat_id },
 973                 { WESTON_OPTION_STRING, "drm-device", 0, &config.specific_device },
 974                 { WESTON_OPTION_BOOLEAN, "current-mode", 0, &use_current_mode },
 975                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &force_pixman },
 976                 { WESTON_OPTION_BOOLEAN, "continue-without-input", false, &without_input }
 977         };
 978
 979         parse_options(options, ARRAY_LENGTH(options), argc, argv);
 980
 981         if (force_pixman)
 982                 config.renderer = WESTON_RENDERER_PIXMAN;
 983         else
 984                 config.renderer = WESTON_RENDERER_AUTO;
 985
 986         ivi->cmdline.use_current_mode = use_current_mode;
 987
 988         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
 989         weston_config_section_get_string(section, "gbm-format",
 990                                          &config.gbm_format, NULL);
 991         weston_config_section_get_uint(section, "pageflip-timeout",
 992                                        &config.pageflip_timeout, 0);
 993         weston_config_section_get_bool(section, "pixman-shadow", &use_shadow, 1);
 994         config.use_pixman_shadow = use_shadow;
 995
 996         if (without_input)
 997                 ivi->compositor->require_input = !without_input;
 998
 999         ivi->heads_changed.notify = heads_changed;
1000         weston_compositor_add_heads_changed_listener(ivi->compositor,
1001                                                      &ivi->heads_changed);
1002
1003         if (!weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_DRM,
1004                                             &config.base))
1005                 return -1;
1006
1007         ivi->drm_api = weston_drm_output_get_api(ivi->compositor);
1008         if (!ivi->drm_api) {
1009                 weston_log("Cannot use drm output api.\n");
1010                 goto error;
1011         }
1012
1013         load_remoting_plugin(ivi, ivi->config);
1014
1015         return 0;
1016
1017 error:
1018         free(config.gbm_format);
1019         free(config.seat_id);
1020         return -1;
1021 }
1022
1023 static void
1024 windowed_parse_common_options(struct ivi_compositor *ivi, int *argc, char *argv[],
1025                               bool *force_pixman, bool *fullscreen, int *output_count)
1026 {
1027         struct weston_config_section *section;
1028         bool pixman;
1029         int fs = 0;
1030
1031         const struct weston_option options[] = {
1032                 { WESTON_OPTION_INTEGER, "width", 0, &ivi->cmdline.width },
1033                 { WESTON_OPTION_INTEGER, "height", 0, &ivi->cmdline.height },
1034                 { WESTON_OPTION_INTEGER, "scale", 0, &ivi->cmdline.scale },
1035                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &force_pixman },
1036                 { WESTON_OPTION_BOOLEAN, "fullscreen", 0, &fs },
1037                 { WESTON_OPTION_INTEGER, "output-count", 0, output_count },
1038         };
1039
1040         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
1041         weston_config_section_get_bool(section, "use-pixman", &pixman, false);
1042
1043         *output_count = 1;
1044         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1045         *force_pixman = pixman;
1046         *fullscreen = fs;
1047 }
1048
1049 static int
1050 windowed_create_outputs(struct ivi_compositor *ivi, int output_count,
1051                         const char *match_prefix, const char *name_prefix)
1052 {
1053         struct weston_config_section *section = NULL;
1054         const char *section_name;
1055         char *default_output = NULL;
1056         int i = 0;
1057         size_t match_len = strlen(match_prefix);
1058
1059         while (weston_config_next_section(ivi->config, &section, &section_name)) {
1060                 char *output_name;
1061
1062                 if (i >= output_count)
1063                         break;
1064
1065                 if (strcmp(section_name, "output") != 0)
1066                         continue;
1067
1068                 weston_config_section_get_string(section, "name", &output_name, NULL);
1069                 if (output_name == NULL)
1070                         continue;
1071                 if (strncmp(output_name, match_prefix, match_len) != 0) {
1072                         free(output_name);
1073                         continue;
1074                 }
1075
1076                 if (ivi->window_api->create_head(ivi->backend, output_name) < 0) {
1077                         free(output_name);
1078                         return -1;
1079                 }
1080
1081                 free(output_name);
1082                 ++i;
1083         }
1084
1085         for (; i < output_count; ++i) {
1086                 if (asprintf(&default_output, "%s%d", name_prefix, i) < 0)
1087                         return -1;
1088
1089                 if (ivi->window_api->create_head(ivi->backend, default_output) < 0) {
1090                         free(default_output);
1091                         return -1;
1092                 }
1093
1094                 free(default_output);
1095         }
1096
1097         return 0;
1098 }
1099
1100 static int
1101 load_wayland_backend(struct ivi_compositor *ivi, int *argc, char *argv[],
1102                      enum weston_renderer_type renderer)
1103 {
1104         struct weston_wayland_backend_config config = {
1105                 .base = {
1106                         .struct_version = WESTON_WAYLAND_BACKEND_CONFIG_VERSION,
1107                         .struct_size = sizeof config,
1108                 },
1109         };
1110         struct weston_config_section *section;
1111         int sprawl = 0;
1112         int output_count;
1113         bool force_pixman = false;
1114
1115         const struct weston_option options[] = {
1116                 { WESTON_OPTION_STRING, "display", 0, &config.display_name },
1117                 { WESTON_OPTION_STRING, "sprawl", 0, &sprawl },
1118         };
1119
1120         windowed_parse_common_options(ivi, argc, argv, &force_pixman,
1121                                       &config.fullscreen, &output_count);
1122
1123         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1124         config.sprawl = sprawl;
1125
1126         section = weston_config_get_section(ivi->config, "shell", NULL, NULL);
1127         weston_config_section_get_string(section, "cursor-theme",
1128                                          &config.cursor_theme, NULL);
1129         weston_config_section_get_int(section, "cursor-size",
1130                                       &config.cursor_size, 32);
1131
1132         ivi->backend = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_WAYLAND,
1133                                                       &config.base);
1134
1135         free(config.cursor_theme);
1136         free(config.display_name);
1137
1138         if (!ivi->backend)
1139                 return -1;
1140
1141         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
1142
1143         /*
1144          * We will just assume if load_backend() finished cleanly and
1145          * windowed_output_api is not present that wayland backend is started
1146          * with --sprawl or runs on fullscreen-shell. In this case, all values
1147          * are hardcoded, so nothing can be configured; simply create and
1148          * enable an output.
1149          */
1150         if (ivi->window_api == NULL)
1151                 return 0;
1152
1153         return windowed_create_outputs(ivi, output_count, "WL", "wayland");
1154 }
1155
1156 #ifdef HAVE_BACKEND_X11
1157 static int
1158 load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[],
1159                  enum weston_renderer_type renderer)
1160 {
1161         struct weston_x11_backend_config config = {
1162                 .base = {
1163                         .struct_version = WESTON_X11_BACKEND_CONFIG_VERSION,
1164                         .struct_size = sizeof config,
1165                 },
1166         };
1167         int no_input = 0;
1168         int output_count;
1169         int ret;
1170         bool force_pixman = false;
1171
1172         const struct weston_option options[] = {
1173                { WESTON_OPTION_BOOLEAN, "no-input", 0, &no_input },
1174         };
1175
1176         windowed_parse_common_options(ivi, argc, argv, &force_pixman,
1177                                       &config.fullscreen, &output_count);
1178
1179         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1180         if (force_pixman)
1181                 config.renderer = WESTON_RENDERER_PIXMAN;
1182         else
1183                 config.renderer = WESTON_RENDERER_AUTO;
1184         config.no_input = no_input;
1185
1186         if (!weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_X11, &config.base))
1187                 return -1;
1188
1189         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
1190         if (!ivi->window_api) {
1191                 weston_log("Cannot use weston_windowed_output_api.\n");
1192                 return -1;
1193         }
1194
1195         return windowed_create_outputs(ivi, output_count, "X", "screen");
1196 }
1197 #else
1198 static int
1199 load_x11_backend(struct ivi_compositor *ivi, int *argc, char **argv,
1200                  enum weston_renderer_type renderer)
1201 {
1202         return -1;
1203 }
1204 #endif
1205
1206 #ifdef HAVE_BACKEND_RDP
1207 static void
1208 weston_rdp_backend_config_init(struct weston_rdp_backend_config *config)
1209 {
1210         config->base.struct_version = WESTON_RDP_BACKEND_CONFIG_VERSION;
1211         config->base.struct_size = sizeof(struct weston_rdp_backend_config);
1212
1213         config->bind_address = NULL;
1214         config->port = 3389;
1215         config->rdp_key = NULL;
1216         config->server_cert = NULL;
1217         config->server_key = NULL;
1218         config->env_socket = 0;
1219         config->no_clients_resize = 1;
1220         config->force_no_compression = 0;
1221 }
1222
1223 static int
1224 rdp_backend_output_configure(struct weston_output *output)
1225 {
1226         struct ivi_compositor *ivi = to_ivi_compositor(output->compositor);
1227         struct ivi_output_config *parsed_options = ivi->parsed_options;
1228         const struct weston_rdp_output_api *api =
1229                 weston_rdp_output_get_api(output->compositor);
1230         int width = 640;
1231         int height = 480;
1232         struct weston_config_section *section;
1233         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
1234         char *transform_string;
1235         struct weston_mode new_mode = {};
1236
1237         assert(parsed_options);
1238
1239         if (!api) {
1240                 weston_log("Cannot use weston_rdp_output_api.\n");
1241                 return -1;
1242         }
1243
1244         section = weston_config_get_section(ivi->config, "rdp", NULL, NULL);
1245
1246         if (parsed_options->width)
1247                 width = parsed_options->width;
1248
1249         if (parsed_options->height)
1250                 height = parsed_options->height;
1251
1252         weston_output_set_scale(output, 1);
1253
1254         weston_config_section_get_int(section, "width",
1255                         &width, width);
1256
1257         weston_config_section_get_int(section, "height",
1258                         &height, height);
1259
1260         if (parsed_options->transform)
1261                 transform = parsed_options->transform;
1262
1263         weston_config_section_get_string(section, "transform",
1264                         &transform_string, "normal");
1265
1266         if (parse_transform(transform_string, &transform) < 0) {
1267                 weston_log("Invalid transform \"%s\" for output %s\n",
1268                            transform_string, output->name);
1269                 return -1;
1270         }
1271
1272
1273         new_mode.width = width;
1274         new_mode.height = height;
1275
1276         api->output_set_mode(output, &new_mode);
1277         weston_output_set_transform(output, transform);
1278
1279         return 0;
1280 }
1281
1282 static int
1283 load_rdp_backend(struct ivi_compositor *ivi, int *argc, char **argv)
1284 {
1285         struct weston_rdp_backend_config config = {};
1286         struct weston_config_section *section;
1287
1288         struct ivi_output_config *parsed_options = ivi_init_parsed_options(ivi->compositor);
1289         if (!parsed_options)
1290                 return -1;
1291
1292         weston_rdp_backend_config_init(&config);
1293
1294         const struct weston_option rdp_options[] = {
1295                 { WESTON_OPTION_BOOLEAN, "env-socket", 0, &config.env_socket },
1296                 { WESTON_OPTION_INTEGER, "width", 0, &parsed_options->width },
1297                 { WESTON_OPTION_INTEGER, "height", 0, &parsed_options->height },
1298                 { WESTON_OPTION_INTEGER, "transform", 0, &parsed_options->transform },
1299                 { WESTON_OPTION_INTEGER, "scale", 0, &parsed_options->scale },
1300                 { WESTON_OPTION_STRING,  "address", 0, &config.bind_address },
1301                 { WESTON_OPTION_INTEGER, "port", 0, &config.port },
1302                 { WESTON_OPTION_BOOLEAN, "no-clients-resize", 0, &config.no_clients_resize },
1303                 { WESTON_OPTION_STRING,  "rdp4-key", 0, &config.rdp_key },
1304                 { WESTON_OPTION_STRING,  "rdp-tls-cert", 0, &config.server_cert },
1305                 { WESTON_OPTION_STRING,  "rdp-tls-key", 0, &config.server_key },
1306                 { WESTON_OPTION_BOOLEAN, "force-no-compression", 0, &config.force_no_compression },
1307         };
1308
1309         section = weston_config_get_section(ivi->config, "rdp", NULL, NULL);
1310
1311         weston_config_section_get_string(section, "tls-cert",
1312                         &config.server_cert, config.server_cert);
1313
1314         weston_config_section_get_string(section, "tls-key",
1315                         &config.server_key, config.server_key);
1316
1317
1318         parse_options(rdp_options, ARRAY_LENGTH(rdp_options), argc, argv);
1319
1320         ivi->simple_output_configure = rdp_backend_output_configure;
1321         if (!weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_RDP, &config.base))
1322                 return -1;
1323
1324         free(config.bind_address);
1325         free(config.rdp_key);
1326         free(config.server_cert);
1327         free(config.server_key);
1328
1329         return 0;
1330 }
1331 #else
1332 static int
1333 load_rdp_backend(struct ivi_compositor *ivi, int *argc, char **argv)
1334 {
1335         return -1;
1336 }
1337 #endif
1338
1339
1340 static int
1341 load_backend(struct ivi_compositor *ivi, int *argc, char **argv,
1342              const char *backend_name, const char *renderer_name)
1343 {
1344         enum weston_compositor_backend backend;
1345         enum weston_renderer_type renderer;
1346
1347         if (!get_backend_from_string(backend_name, &backend)) {
1348                 weston_log("Error: unknown backend \"%s\"\n", backend_name);
1349                 return -1;
1350         }
1351
1352         if (!get_renderer_from_string(renderer_name, &renderer)) {
1353                 weston_log("Error: unknown renderer \"%s\"\n", renderer_name);
1354                 return -1;
1355         }
1356
1357         switch (backend) {
1358         case WESTON_BACKEND_DRM:
1359                 return load_drm_backend(ivi, argc, argv, renderer);
1360         case WESTON_BACKEND_RDP:
1361                 return load_rdp_backend(ivi, argc, argv);
1362         case WESTON_BACKEND_WAYLAND:
1363                 return load_wayland_backend(ivi, argc, argv, renderer);
1364         case WESTON_BACKEND_X11:
1365                 return load_x11_backend(ivi, argc, argv, renderer);
1366         default:
1367                 assert(!"unknown backend type in load_backend()");
1368         }
1369
1370         return 0;
1371 }
1372
1373 static int
1374 load_modules(struct ivi_compositor *ivi, const char *modules,
1375              int *argc, char *argv[], bool *xwayland)
1376 {
1377         const char *p, *end;
1378         char buffer[256];
1379         int (*module_init)(struct weston_compositor *wc, int argc, char *argv[]);
1380
1381         if (modules == NULL)
1382                 return 0;
1383
1384         p = modules;
1385         while (*p) {
1386                 end = strchrnul(p, ',');
1387                 snprintf(buffer, sizeof buffer, "%.*s", (int) (end - p), p);
1388
1389                 if (strstr(buffer, "xwayland.so")) {
1390                         *xwayland = true;
1391                 } else if (strstr(buffer, "systemd-notify.so")) {
1392                         weston_log("systemd-notify plug-in already loaded!\n");
1393                 } else {
1394                         module_init = weston_load_module(buffer, "wet_module_init", WESTON_MODULEDIR);
1395                         if (!module_init)
1396                                 return -1;
1397
1398                         if (module_init(ivi->compositor, *argc, argv) < 0)
1399                                 return -1;
1400
1401                 }
1402
1403                 p = end;
1404                 while (*p == ',')
1405                         p++;
1406         }
1407
1408         return 0;
1409 }
1410
1411
1412 static char *
1413 choose_default_backend(void)
1414 {
1415         char *backend = NULL;
1416
1417         if (getenv("WAYLAND_DISPLAY") || getenv("WAYLAND_SOCKET"))
1418                 backend = strdup("wayland-backend.so");
1419         else if (getenv("DISPLAY"))
1420                 backend = strdup("x11-backend.so");
1421         else
1422                 backend = strdup("drm-backend.so");
1423
1424         return backend;
1425 }
1426
1427 static int
1428 compositor_init_config(struct ivi_compositor *ivi)
1429 {
1430         struct xkb_rule_names xkb_names;
1431         struct weston_config_section *section;
1432         struct weston_compositor *compositor = ivi->compositor;
1433         struct weston_config *config = ivi->config;
1434         int repaint_msec;
1435         bool vt_switching;
1436         bool require_input;
1437
1438         /* agl-compositor.ini [keyboard] */
1439         section = weston_config_get_section(config, "keyboard", NULL, NULL);
1440         weston_config_section_get_string(section, "keymap_rules",
1441                                          (char **) &xkb_names.rules, NULL);
1442         weston_config_section_get_string(section, "keymap_model",
1443                                          (char **) &xkb_names.model, NULL);
1444         weston_config_section_get_string(section, "keymap_layout",
1445                                          (char **) &xkb_names.layout, NULL);
1446         weston_config_section_get_string(section, "keymap_variant",
1447                                          (char **) &xkb_names.variant, NULL);
1448         weston_config_section_get_string(section, "keymap_options",
1449                                          (char **) &xkb_names.options, NULL);
1450
1451         if (weston_compositor_set_xkb_rule_names(compositor, &xkb_names) < 0)
1452                 return -1;
1453
1454         weston_config_section_get_int(section, "repeat-rate",
1455                                       &compositor->kb_repeat_rate, 40);
1456         weston_config_section_get_int(section, "repeat-delay",
1457                                       &compositor->kb_repeat_delay, 400);
1458
1459         weston_config_section_get_bool(section, "vt-switching",
1460                                        &vt_switching, false);
1461         compositor->vt_switching = vt_switching;
1462
1463         /* agl-compositor.ini [core] */
1464         section = weston_config_get_section(config, "core", NULL, NULL);
1465
1466         weston_config_section_get_bool(section, "disable-cursor",
1467                                        &ivi->disable_cursor, false);
1468         weston_config_section_get_bool(section, "activate-by-default",
1469                                        &ivi->activate_by_default, true);
1470
1471         weston_config_section_get_bool(section, "require-input", &require_input, true);
1472         compositor->require_input = require_input;
1473
1474         weston_config_section_get_int(section, "repaint-window", &repaint_msec,
1475                                       compositor->repaint_msec);
1476         if (repaint_msec < -10 || repaint_msec > 1000) {
1477                 weston_log("Invalid repaint_window value in config: %d\n",
1478                            repaint_msec);
1479         } else {
1480                 compositor->repaint_msec = repaint_msec;
1481         }
1482         weston_log("Output repaint window is %d ms maximum.\n",
1483                    compositor->repaint_msec);
1484
1485         return 0;
1486 }
1487
1488 struct ivi_surface *
1489 to_ivi_surface(struct weston_surface *surface)
1490 {
1491         struct weston_desktop_surface *dsurface;
1492
1493         dsurface = weston_surface_get_desktop_surface(surface);
1494         if (!dsurface)
1495                 return NULL;
1496
1497         return weston_desktop_surface_get_user_data(dsurface);
1498 }
1499
1500 static void
1501 activate_binding(struct weston_seat *seat,
1502                  struct weston_view *focus_view, uint32_t flags)
1503 {
1504         struct weston_surface *focus_surface;
1505         struct weston_surface *main_surface;
1506         struct ivi_surface *ivi_surface;
1507         struct ivi_shell_seat *ivi_seat = get_ivi_shell_seat(seat);
1508
1509         if (!focus_view)
1510                 return;
1511
1512         focus_surface = focus_view->surface;
1513         main_surface = weston_surface_get_main_surface(focus_surface);
1514
1515         ivi_surface = to_ivi_surface(main_surface);
1516         if (!ivi_surface)
1517                 return;
1518
1519         if (ivi_seat)
1520                 ivi_shell_activate_surface(ivi_surface, ivi_seat, flags);
1521 }
1522
1523 static void
1524 click_to_activate_binding(struct weston_pointer *pointer,
1525                           const struct timespec *time,
1526                           uint32_t button, void *data)
1527 {
1528         if (pointer->grab != &pointer->default_grab)
1529                 return;
1530         if (pointer->focus == NULL)
1531                 return;
1532
1533         activate_binding(pointer->seat, pointer->focus,
1534                          WESTON_ACTIVATE_FLAG_CLICKED);
1535 }
1536
1537 static void
1538 touch_to_activate_binding(struct weston_touch *touch,
1539                           const struct timespec *time,
1540                           void *data)
1541 {
1542         if (touch->grab != &touch->default_grab)
1543                 return;
1544         if (touch->focus == NULL)
1545                 return;
1546
1547         activate_binding(touch->seat, touch->focus,
1548                          WESTON_ACTIVATE_FLAG_NONE);
1549 }
1550
1551 static void
1552 add_bindings(struct weston_compositor *compositor)
1553 {
1554         weston_compositor_add_button_binding(compositor, BTN_LEFT, 0,
1555                                              click_to_activate_binding,
1556                                              NULL);
1557         weston_compositor_add_button_binding(compositor, BTN_RIGHT, 0,
1558                                              click_to_activate_binding,
1559                                              NULL);
1560         weston_compositor_add_touch_binding(compositor, 0,
1561                                             touch_to_activate_binding,
1562                                             NULL);
1563 }
1564
1565 static int
1566 create_listening_socket(struct wl_display *display, const char *socket_name)
1567 {
1568         if (socket_name) {
1569                 if (wl_display_add_socket(display, socket_name)) {
1570                         weston_log("fatal: failed to add socket: %s\n",
1571                                    strerror(errno));
1572                         return -1;
1573                 }
1574         } else {
1575                 socket_name = wl_display_add_socket_auto(display);
1576                 if (!socket_name) {
1577                         weston_log("fatal: failed to add socket: %s\n",
1578                                    strerror(errno));
1579                         return -1;
1580                 }
1581         }
1582
1583         setenv("WAYLAND_DISPLAY", socket_name, 1);
1584
1585         return 0;
1586 }
1587
1588 static bool
1589 global_filter(const struct wl_client *client, const struct wl_global *global,
1590               void *data)
1591 {
1592         return true;
1593 }
1594
1595 static int
1596 load_config(struct weston_config **config, bool no_config,
1597             const char *config_file)
1598 {
1599         const char *file = "agl-compositor.ini";
1600         const char *full_path;
1601
1602         if (config_file)
1603                 file = config_file;
1604
1605         if (!no_config)
1606                 *config = weston_config_parse(file);
1607
1608         if (*config) {
1609                 full_path = weston_config_get_full_path(*config);
1610
1611                 weston_log("Using config file '%s'.\n", full_path);
1612                 setenv(WESTON_CONFIG_FILE_ENV_VAR, full_path, 1);
1613
1614                 return 0;
1615         }
1616
1617         if (config_file && !no_config) {
1618                 weston_log("fatal: error opening or reading config file '%s'.\n",
1619                         config_file);
1620
1621                 return -1;
1622         }
1623
1624         weston_log("Starting with no config file.\n");
1625         setenv(WESTON_CONFIG_FILE_ENV_VAR, "", 1);
1626
1627         return 0;
1628 }
1629
1630 static FILE *logfile;
1631
1632 static char *
1633 log_timestamp(char *buf, size_t len)
1634 {
1635         struct timeval tv;
1636         struct tm *brokendown_time;
1637         char datestr[128];
1638         char timestr[128];
1639
1640         gettimeofday(&tv, NULL);
1641
1642         brokendown_time = localtime(&tv.tv_sec);
1643         if (brokendown_time == NULL) {
1644                 snprintf(buf, len, "%s", "[(NULL)localtime] ");
1645                 return buf;
1646         }
1647
1648         memset(datestr, 0, sizeof(datestr));
1649         if (brokendown_time->tm_mday != cached_tm_mday) {
1650                 strftime(datestr, sizeof(datestr), "Date: %Y-%m-%d %Z\n",
1651                                 brokendown_time);
1652                 cached_tm_mday = brokendown_time->tm_mday;
1653         }
1654
1655         strftime(timestr, sizeof(timestr), "%H:%M:%S", brokendown_time);
1656         /* if datestr is empty it prints only timestr*/
1657         snprintf(buf, len, "%s[%s.%03li]", datestr,
1658                         timestr, (tv.tv_usec / 1000));
1659
1660         return buf;
1661 }
1662
1663 static void
1664 custom_handler(const char *fmt, va_list arg)
1665 {
1666         char timestr[512];
1667
1668         weston_log_scope_printf(log_scope, "%s libwayland: ",
1669                         log_timestamp(timestr, sizeof(timestr)));
1670         weston_log_scope_vprintf(log_scope, fmt, arg);
1671 }
1672
1673 static void
1674 log_file_open(const char *filename)
1675 {
1676         wl_log_set_handler_server(custom_handler);
1677
1678         if (filename)
1679                 logfile = fopen(filename, "a");
1680
1681         if (!logfile) {
1682                 logfile = stderr;
1683         } else {
1684                 os_fd_set_cloexec(fileno(logfile));
1685                 setvbuf(logfile, NULL, _IOLBF, 256);
1686         }
1687 }
1688
1689 static void
1690 log_file_close(void)
1691 {
1692         if (logfile && logfile != stderr)
1693                 fclose(logfile);
1694         logfile = stderr;
1695 }
1696
1697 static int
1698 vlog(const char *fmt, va_list ap)
1699 {
1700         const char *oom = "Out of memory";
1701         char timestr[128];
1702         int len = 0;
1703         char *str;
1704
1705         if (weston_log_scope_is_enabled(log_scope)) {
1706                 int len_va;
1707                 char *xlog_timestamp = log_timestamp(timestr, sizeof(timestr));
1708                 len_va = vasprintf(&str, fmt, ap);
1709                 if (len_va >= 0) {
1710                         len = weston_log_scope_printf(log_scope, "%s %s",
1711                                         xlog_timestamp, str);
1712                         free(str);
1713                 } else {
1714                         len = weston_log_scope_printf(log_scope, "%s %s",
1715                                         xlog_timestamp, oom);
1716                 }
1717         }
1718
1719         return len;
1720 }
1721
1722
1723 static int
1724 vlog_continue(const char *fmt, va_list ap)
1725 {
1726         return weston_log_scope_vprintf(log_scope, fmt, ap);
1727 }
1728
1729 static int
1730 on_term_signal(int signo, void *data)
1731 {
1732         struct wl_display *display = data;
1733
1734         weston_log("caught signal %d\n", signo);
1735         wl_display_terminate(display);
1736
1737         return 1;
1738 }
1739
1740 static void
1741 handle_exit(struct weston_compositor *compositor)
1742 {
1743         wl_display_terminate(compositor->wl_display);
1744 }
1745
1746 static void
1747 usage(int error_code)
1748 {
1749         FILE *out = error_code == EXIT_SUCCESS ? stdout : stderr;
1750         fprintf(out,
1751                 "Usage: agl-compositor [OPTIONS]\n"
1752                 "\n"
1753                 "This is " PACKAGE_STRING ", the reference compositor for\n"
1754                 "Automotive Grade Linux. " PACKAGE_STRING " supports multiple "
1755                 "backends,\nand depending on which backend is in use different "
1756                 "options will be accepted.\n"
1757                 "\n"
1758                 "Core options:\n"
1759                 "\n"
1760                 "  --version\t\tPrint agl-compositor version\n"
1761                 "  -B, --backend=MODULE\tBackend module, one of\n"
1762                         "\t\t\t\tdrm-backend.so\n"
1763                         "\t\t\t\twayland-backend.so\n"
1764                         "\t\t\t\tx11-backend.so\n"
1765                         "\t\t\t\theadless-backend.so\n"
1766                 "  -r, --renderer=NAME\tName of renderer to use: auto, gl, noop, pixman\n"
1767                 "  -S, --socket=NAME\tName of socket to listen on\n"
1768                 "  --log=FILE\t\tLog to the given file\n"
1769                 "  -c, --config=FILE\tConfig file to load, defaults to agl-compositor.ini\n"
1770                 "  --no-config\t\tDo not read agl-compositor.ini\n"
1771                 "  --debug\t\tEnable debug extension(s)\n"
1772                 "  -h, --help\t\tThis help message\n"
1773                 "\n");
1774         exit(error_code);
1775 }
1776
1777 static char *
1778 copy_command_line(int argc, char * const argv[])
1779 {
1780         FILE *fp;
1781         char *str = NULL;
1782         size_t size = 0;
1783         int i;
1784
1785         fp = open_memstream(&str, &size);
1786         if (!fp)
1787                 return NULL;
1788
1789         fprintf(fp, "%s", argv[0]);
1790         for (i = 1; i < argc; i++)
1791                 fprintf(fp, " %s", argv[i]);
1792         fclose(fp);
1793
1794         return str;
1795 }
1796
1797 #if !defined(BUILD_XWAYLAND)
1798 void *
1799 wet_load_xwayland(struct weston_compositor *comp)
1800 {
1801         weston_log("Attempted to load xwayland library but compositor "
1802                    "was *not* built with xwayland support!\n");
1803         return NULL;
1804 }
1805 #endif
1806
1807 static void
1808 weston_log_setup_scopes(struct weston_log_context *log_ctx,
1809                         struct weston_log_subscriber *subscriber,
1810                         const char *names)
1811 {
1812         assert(log_ctx);
1813         assert(subscriber);
1814
1815         char *tokenize = strdup(names);
1816         char *token = strtok(tokenize, ",");
1817         while (token) {
1818                 weston_log_subscribe(log_ctx, subscriber, token);
1819                 token = strtok(NULL, ",");
1820         }
1821         free(tokenize);
1822 }
1823
1824 static void
1825 weston_log_subscribe_to_scopes(struct weston_log_context *log_ctx,
1826                                struct weston_log_subscriber *logger,
1827                                const char *debug_scopes)
1828 {
1829         if (logger && debug_scopes)
1830                 weston_log_setup_scopes(log_ctx, logger, debug_scopes);
1831         else
1832                 weston_log_subscribe(log_ctx, logger, "log");
1833 }
1834
1835 WL_EXPORT
1836 int wet_main(int argc, char *argv[], const struct weston_testsuite_data *test_data)
1837 {
1838         struct ivi_compositor ivi = { 0 };
1839         char *cmdline;
1840         struct wl_display *display = NULL;
1841         struct wl_event_loop *loop;
1842         struct wl_event_source *signals[3] = { 0 };
1843         struct weston_config_section *section;
1844         /* Command line options */
1845         char *backend = NULL;
1846         char *socket_name = NULL;
1847         char *log = NULL;
1848         char *modules = NULL;
1849         char *option_modules = NULL;
1850         char *debug_scopes = NULL;
1851         int help = 0;
1852         int version = 0;
1853         int no_config = 0;
1854         int debug = 0;
1855         bool list_debug_scopes = false;
1856         char *config_file = NULL;
1857         struct weston_log_context *log_ctx = NULL;
1858         struct weston_log_subscriber *logger;
1859         int ret = EXIT_FAILURE;
1860         bool xwayland = false;
1861         struct sigaction action;
1862         char *renderer = NULL;
1863
1864         const struct weston_option core_options[] = {
1865                 { WESTON_OPTION_STRING, "renderer", 'r', &renderer },
1866                 { WESTON_OPTION_STRING, "backend", 'B', &backend },
1867                 { WESTON_OPTION_STRING, "socket", 'S', &socket_name },
1868                 { WESTON_OPTION_STRING, "log", 0, &log },
1869                 { WESTON_OPTION_BOOLEAN, "help", 'h', &help },
1870                 { WESTON_OPTION_BOOLEAN, "version", 0, &version },
1871                 { WESTON_OPTION_BOOLEAN, "no-config", 0, &no_config },
1872                 { WESTON_OPTION_BOOLEAN, "debug", 0, &debug },
1873                 { WESTON_OPTION_STRING, "config", 'c', &config_file },
1874                 { WESTON_OPTION_STRING, "modules", 0, &option_modules },
1875                 { WESTON_OPTION_STRING, "debug-scopes", 'l', &debug_scopes },
1876                 { WESTON_OPTION_STRING, "list-debug-scopes", 'L', &list_debug_scopes },
1877         };
1878
1879         wl_list_init(&ivi.outputs);
1880         wl_list_init(&ivi.saved_outputs);
1881         wl_list_init(&ivi.surfaces);
1882         wl_list_init(&ivi.pending_surfaces);
1883         wl_list_init(&ivi.popup_pending_apps);
1884         wl_list_init(&ivi.fullscreen_pending_apps);
1885         wl_list_init(&ivi.split_pending_apps);
1886         wl_list_init(&ivi.remote_pending_apps);
1887         wl_list_init(&ivi.desktop_clients);
1888         wl_list_init(&ivi.child_process_list);
1889         wl_list_init(&ivi.pending_apps);
1890
1891         /* Prevent any clients we spawn getting our stdin */
1892         os_fd_set_cloexec(STDIN_FILENO);
1893
1894         cmdline = copy_command_line(argc, argv);
1895         parse_options(core_options, ARRAY_LENGTH(core_options), &argc, argv);
1896
1897         if (help)
1898                 usage(EXIT_SUCCESS);
1899
1900         if (version) {
1901                 printf(PACKAGE_STRING "\n");
1902                 ret = EXIT_SUCCESS;
1903                 goto exit_signals;
1904         }
1905
1906         log_ctx = weston_log_ctx_create();
1907         if (!log_ctx) {
1908                 fprintf(stderr, "Failed to initialize weston debug framework.\n");
1909                 goto exit_signals;
1910         }
1911
1912         log_scope = weston_log_ctx_add_log_scope(log_ctx, "log",
1913                                                  "agl-compositor log\n",
1914                                                  NULL, NULL, NULL);
1915
1916         log_file_open(log);
1917         weston_log_set_handler(vlog, vlog_continue);
1918
1919         logger = weston_log_subscriber_create_log(logfile);
1920         weston_log_subscribe_to_scopes(log_ctx, logger, debug_scopes);
1921
1922         weston_log("Command line: %s\n", cmdline);
1923         free(cmdline);
1924
1925         if (load_config(&ivi.config, no_config, config_file) < 0)
1926                 goto error_signals;
1927         section = weston_config_get_section(ivi.config, "core", NULL, NULL);
1928         if (!backend) {
1929                 weston_config_section_get_string(section, "backend", &backend,
1930                                                  NULL);
1931                 if (!backend)
1932                         backend = choose_default_backend();
1933         }
1934
1935         display = wl_display_create();
1936         loop = wl_display_get_event_loop(display);
1937
1938         wl_display_set_global_filter(display,
1939                                      global_filter, &ivi);
1940
1941         /* Register signal handlers so we shut down cleanly */
1942
1943         signals[0] = wl_event_loop_add_signal(loop, SIGTERM, on_term_signal,
1944                                               display);
1945         signals[1] = wl_event_loop_add_signal(loop, SIGUSR2, on_term_signal,
1946                                               display);
1947         signals[2] = wl_event_loop_add_signal(loop, SIGCHLD, sigchld_handler,
1948                                               display);
1949
1950         /* When debugging the compositor, if use wl_event_loop_add_signal() to
1951          * catch SIGINT, the debugger can't catch it, and attempting to stop
1952          * the compositor from within the debugger results in weston exiting
1953          * cleanly.
1954          *
1955          * Instead, use the sigaction() function, which sets up the signal in a
1956          * way that gdb can successfully catch, but have the handler for SIGINT
1957          * send SIGUSR2 (xwayland uses SIGUSR1), which we catch via
1958          * wl_event_loop_add_signal().
1959          */
1960         action.sa_handler = sigint_helper;
1961         sigemptyset(&action.sa_mask);
1962         action.sa_flags = 0;
1963         sigaction(SIGINT, &action, NULL);
1964
1965         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
1966                 if (!signals[i])
1967                         goto error_signals;
1968
1969         ivi.compositor = weston_compositor_create(display, log_ctx, &ivi, test_data);
1970         if (!ivi.compositor) {
1971                 weston_log("fatal: failed to create compositor.\n");
1972                 goto error_signals;
1973         }
1974
1975         if (compositor_init_config(&ivi) < 0)
1976                 goto error_compositor;
1977
1978         if (load_backend(&ivi, &argc, argv, backend, renderer) < 0) {
1979                 weston_log("fatal: failed to create compositor backend.\n");
1980                 goto error_compositor;
1981         }
1982
1983         if (weston_compositor_backends_loaded(ivi.compositor) < 0)
1984                 goto error_compositor;
1985
1986         weston_compositor_flush_heads_changed(ivi.compositor);
1987
1988         if (ivi_desktop_init(&ivi) < 0)
1989                 goto error_compositor;
1990
1991         ivi_seat_init(&ivi);
1992
1993         /* load additional modules */
1994         weston_config_section_get_string(section, "modules", &modules, "");
1995         if (load_modules(&ivi, modules, &argc, argv, &xwayland) < 0)
1996                 goto error_compositor;
1997
1998         if (load_modules(&ivi, option_modules, &argc, argv, &xwayland) < 0)
1999                 goto error_compositor;
2000
2001         if (!xwayland) {
2002                 weston_config_section_get_bool(section, "xwayland", &xwayland,
2003                                                false);
2004         }
2005
2006         if (ivi_shell_init(&ivi) < 0)
2007                 goto error_compositor;
2008
2009         if (xwayland) {
2010                 if (!wet_load_xwayland(ivi.compositor))
2011                         goto error_compositor;
2012         }
2013
2014         if (ivi_policy_init(&ivi) < 0)
2015                 goto error_compositor;
2016
2017
2018         if (list_debug_scopes) {
2019                 struct weston_log_scope *nscope = NULL;
2020
2021                 weston_log("Printing available debug scopes:\n");
2022
2023                 while ((nscope = weston_log_scopes_iterate(log_ctx, nscope))) {
2024                         weston_log("\tscope name: %s, desc: %s",
2025                                         weston_log_scope_get_name(nscope),
2026                                         weston_log_scope_get_description(nscope));
2027                 }
2028
2029                 weston_log("\n");
2030
2031                 goto error_compositor;
2032         }
2033
2034         add_bindings(ivi.compositor);
2035
2036         if (ivi.remoting_api)
2037                 ivi_enable_remote_outputs(&ivi);
2038
2039         if (create_listening_socket(display, socket_name) < 0)
2040                 goto error_compositor;
2041
2042         ivi_shell_init_black_fs(&ivi);
2043
2044         ivi.compositor->exit = handle_exit;
2045
2046         weston_compositor_wake(ivi.compositor);
2047
2048         ivi_shell_create_global(&ivi);
2049
2050         ivi_launch_shell_client(&ivi, "shell-client",
2051                                 &ivi.shell_client.client);
2052         ivi_launch_shell_client(&ivi, "shell-client-ext",
2053                                 &ivi.shell_client_ext.client);
2054
2055         if (debug)
2056                 ivi_screenshooter_create(&ivi);
2057         ivi_agl_systemd_notify(&ivi);
2058
2059         wl_display_run(display);
2060
2061         ret = ivi.compositor->exit_code;
2062
2063         wl_display_destroy_clients(display);
2064
2065 error_compositor:
2066         free(backend);
2067         backend = NULL;
2068         free(modules);
2069         modules = NULL;
2070
2071         weston_compositor_destroy(ivi.compositor);
2072
2073         weston_log_scope_destroy(log_scope);
2074         log_scope = NULL;
2075
2076         weston_log_subscriber_destroy(logger);
2077         weston_log_ctx_destroy(log_ctx);
2078
2079         ivi_policy_destroy(ivi.policy);
2080
2081 error_signals:
2082         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
2083                 if (signals[i])
2084                         wl_event_source_remove(signals[i]);
2085
2086         wl_display_destroy(display);
2087
2088         log_file_close();
2089         if (ivi.config)
2090                 weston_config_destroy(ivi.config);
2091
2092 exit_signals:
2093         free(log);
2094         free(config_file);
2095         free(socket_name);
2096         free(option_modules);
2097         return ret;
2098 }