e00cf1274bdcd65737d4a01fe8b478d1453e913d
[src/agl-compositor.git] / src / main.c
1 /*
2  * Copyright © 2012-2019 Collabora, Ltd.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining
5  * a copy of this software and associated documentation files (the
6  * "Software"), to deal in the Software without restriction, including
7  * without limitation the rights to use, copy, modify, merge, publish,
8  * distribute, sublicense, and/or sell copies of the Software, and to
9  * permit persons to whom the Software is furnished to do so, subject to
10  * the following conditions:
11  *
12  * The above copyright notice and this permission notice (including the
13  * next paragraph) shall be included in all copies or substantial
14  * portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19  * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
20  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
21  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23  * SOFTWARE.
24  */
25
26 #include "ivi-compositor.h"
27 #include "policy.h"
28
29 #include <assert.h>
30 #include <errno.h>
31 #include <signal.h>
32 #include <stdarg.h>
33 #include <stdbool.h>
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <string.h>
37 #include <unistd.h>
38 #include <linux/input.h>
39
40 #include <libweston/backend-drm.h>
41 #include <libweston/backend-wayland.h>
42 #ifdef HAVE_BACKEND_X11
43 #include <libweston/backend-x11.h>
44 #endif
45 #include <libweston/libweston.h>
46 #include <libweston/windowed-output-api.h>
47 #include <libweston/config-parser.h>
48 #include <libweston/weston-log.h>
49 #include <weston/weston.h>
50
51 #include "shared/os-compatibility.h"
52 #include "shared/helpers.h"
53
54 #include "agl-shell-server-protocol.h"
55
56 #ifdef HAVE_REMOTING
57 #include "remote.h"
58 #endif
59
60 #ifdef HAVE_WALTHAM
61 #include <waltham-transmitter/transmitter_api.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 static void
74 handle_output_destroy(struct wl_listener *listener, void *data)
75 {
76         struct ivi_output *output;
77
78         output = wl_container_of(listener, output, output_destroy);
79         assert(output->output == data);
80
81         output->output = NULL;
82         wl_list_remove(&output->output_destroy.link);
83 }
84
85 struct ivi_output *
86 to_ivi_output(struct weston_output *o)
87 {
88         struct wl_listener *listener;
89         struct ivi_output *output;
90
91         listener = weston_output_get_destroy_listener(o, handle_output_destroy);
92         output = wl_container_of(listener, output, output_destroy);
93
94         return output;
95 }
96
97 static void
98 ivi_output_configure_app_id(struct ivi_output *ivi_output)
99 {
100         if (ivi_output->config) {
101                 if (ivi_output->app_id != NULL)
102                         return;
103
104                 weston_config_section_get_string(ivi_output->config,
105                                                  "agl-shell-app-id",
106                                                  &ivi_output->app_id,
107                                                  NULL);
108
109                 if (ivi_output->app_id == NULL)
110                         return;
111
112                 weston_log("Will place app_id %s on output %s\n",
113                                 ivi_output->app_id, ivi_output->name);
114         }
115 }
116
117 static struct ivi_output *
118 ivi_ensure_output(struct ivi_compositor *ivi, char *name,
119                   struct weston_config_section *config)
120 {
121         struct ivi_output *output = NULL;
122         wl_list_for_each(output, &ivi->outputs, link) {
123                 if (strcmp(output->name, name) == 0) {
124                         free(name);
125                         return output;
126                 }
127         }
128
129         output = zalloc(sizeof *output);
130         if (!output) {
131                 free(name);
132                 return NULL;
133         }
134
135         output->ivi = ivi;
136         output->name = name;
137         output->config = config;
138
139         output->output = weston_compositor_create_output(ivi->compositor, name);
140         if (!output->output) {
141                 free(output->name);
142                 free(output);
143                 return NULL;
144         }
145
146         output->output_destroy.notify = handle_output_destroy;
147         weston_output_add_destroy_listener(output->output,
148                                            &output->output_destroy);
149
150         wl_list_insert(&ivi->outputs, &output->link);
151         ivi_output_configure_app_id(output);
152         return output;
153 }
154
155 static int
156 count_heads(struct weston_output *output)
157 {
158         struct weston_head *iter = NULL;
159         int n = 0;
160
161         while ((iter = weston_output_iterate_heads(output, iter)))
162                 ++n;
163
164         return n;
165 }
166
167 static void
168 handle_head_destroy(struct wl_listener *listener, void *data)
169 {
170         struct weston_head *head = data;
171         struct weston_output *output;
172
173         wl_list_remove(&listener->link);
174         free(listener);
175
176         output = weston_head_get_output(head);
177
178         /* On shutdown path, the output might be already gone. */
179         if (!output)
180                 return;
181
182         /* We're the last head */
183         if (count_heads(output) <= 1)
184                 weston_output_destroy(output);
185 }
186
187 static void
188 add_head_destroyed_listener(struct weston_head *head)
189 {
190         /* We already have a destroy listener */
191         if (weston_head_get_destroy_listener(head, handle_head_destroy))
192                 return;
193
194         struct wl_listener *listener = zalloc(sizeof *listener);
195         if (!listener)
196                 return;
197
198         listener->notify = handle_head_destroy;
199         weston_head_add_destroy_listener(head, listener);
200 }
201
202 static int
203 drm_configure_output(struct ivi_output *output)
204 {
205         struct ivi_compositor *ivi = output->ivi;
206         struct weston_config_section *section = output->config;
207         enum weston_drm_backend_output_mode mode =
208                 WESTON_DRM_BACKEND_OUTPUT_PREFERRED;
209         char *modeline = NULL;
210         char *gbm_format = NULL;
211         char *seat = NULL;
212
213         if (section) {
214                 char *m;
215                 weston_config_section_get_string(section, "mode", &m, "preferred");
216
217                 /* This should have been handled earlier */
218                 assert(strcmp(m, "off") != 0);
219
220                 if (ivi->cmdline.use_current_mode || strcmp(m, "current") == 0) {
221                         mode = WESTON_DRM_BACKEND_OUTPUT_CURRENT;
222                 } else if (strcmp(m, "preferred") != 0) {
223                         modeline = m;
224                         m = NULL;
225                 }
226                 free(m);
227
228                 weston_config_section_get_string(section, "gbm-format",
229                                                  &gbm_format, NULL);
230
231                 weston_config_section_get_string(section, "seat", &seat, "");
232         }
233
234         if (ivi->drm_api->set_mode(output->output, mode, modeline) < 0) {
235                 weston_log("Cannot configure output using weston_drm_output_api.\n");
236                 free(modeline);
237                 return -1;
238         }
239         free(modeline);
240
241         ivi->drm_api->set_gbm_format(output->output, gbm_format);
242         free(gbm_format);
243
244         ivi->drm_api->set_seat(output->output, seat);
245         free(seat);
246
247         return 0;
248 }
249
250 #define WINDOWED_DEFAULT_WIDTH 1024
251 #define WINDOWED_DEFAULT_HEIGHT 768
252
253 static int
254 windowed_configure_output(struct ivi_output *output)
255 {
256         struct ivi_compositor *ivi = output->ivi;
257         struct weston_config_section *section = output->config;
258         int width = WINDOWED_DEFAULT_WIDTH;
259         int height = WINDOWED_DEFAULT_HEIGHT;
260
261         if (section) {
262                 char *mode;
263
264                 weston_config_section_get_string(section, "mode", &mode, NULL);
265                 if (!mode || sscanf(mode, "%dx%d", &width, &height) != 2) {
266                         weston_log("Invalid mode for output %s. Using defaults.\n",
267                                    output->name);
268                         width = WINDOWED_DEFAULT_WIDTH;
269                         height = WINDOWED_DEFAULT_HEIGHT;
270                 }
271                 free(mode);
272         }
273
274         if (ivi->cmdline.width)
275                 width = ivi->cmdline.width;
276         if (ivi->cmdline.height)
277                 height = ivi->cmdline.height;
278         if (ivi->cmdline.scale)
279                 weston_output_set_scale(output->output, ivi->cmdline.scale);
280
281         if (ivi->window_api->output_set_size(output->output, width, height) < 0) {
282                 weston_log("Cannot configure output '%s' using weston_windowed_output_api.\n",
283                            output->name);
284                 return -1;
285         }
286
287         return 0;
288 }
289
290 static int
291 parse_transform(const char *transform, uint32_t *out)
292 {
293         static const struct { const char *name; uint32_t token; } transforms[] = {
294                 { "normal",     WL_OUTPUT_TRANSFORM_NORMAL },
295                 { "90",         WL_OUTPUT_TRANSFORM_90 },
296                 { "180",        WL_OUTPUT_TRANSFORM_180 },
297                 { "270",        WL_OUTPUT_TRANSFORM_270 },
298                 { "flipped",    WL_OUTPUT_TRANSFORM_FLIPPED },
299                 { "flipped-90", WL_OUTPUT_TRANSFORM_FLIPPED_90 },
300                 { "flipped-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 },
301                 { "flipped-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 },
302         };
303
304         for (size_t i = 0; i < ARRAY_LENGTH(transforms); i++)
305                 if (strcmp(transforms[i].name, transform) == 0) {
306                         *out = transforms[i].token;
307                         return 0;
308                 }
309
310         *out = WL_OUTPUT_TRANSFORM_NORMAL;
311         return -1;
312 }
313
314 static int
315 configure_output(struct ivi_output *output)
316 {
317         struct ivi_compositor *ivi = output->ivi;
318         struct weston_config_section *section = output->config;
319         int32_t scale = 1;
320         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
321
322         /*
323          * This can happen with the wayland backend with 'sprawl'. The config
324          * is hard-coded, so we don't need to do anything.
325          */
326         if (!ivi->drm_api && !ivi->window_api)
327                 return 0;
328
329         if (section) {
330                 char *t;
331
332                 weston_config_section_get_int(section, "scale", &scale, 1);
333                 weston_config_section_get_string(section, "transform", &t, "normal");
334                 if (parse_transform(t, &transform) < 0)
335                         weston_log("Invalid transform \"%s\" for output %s\n",
336                                    t, output->name);
337                 free(t);
338         }
339
340         weston_output_set_scale(output->output, scale);
341         weston_output_set_transform(output->output, transform);
342
343         if (ivi->drm_api)
344                 return drm_configure_output(output);
345         else
346                 return windowed_configure_output(output);
347 }
348
349 /*
350  * Reorgainizes the output's add array into two sections.
351  * add[0..ret-1] are the heads that failed to get attached.
352  * add[ret..add_len] are the heads that were successfully attached.
353  *
354  * The order between elements in each section is stable.
355  */
356 static size_t
357 try_attach_heads(struct ivi_output *output)
358 {
359         size_t fail_len = 0;
360
361         for (size_t i = 0; i < output->add_len; ++i) {
362                 if (weston_output_attach_head(output->output, output->add[i]) < 0) {
363                         struct weston_head *tmp = output->add[i];
364                         memmove(&output->add[fail_len + 1], output->add[fail_len],
365                                 sizeof output->add[0] * (i - fail_len));
366                         output->add[fail_len++] = tmp;
367                 }
368         }
369
370         return fail_len;
371 }
372
373 /*
374  * Like try_attach_heads, this reorganizes the output's add array into a failed
375  * and successful section.
376  * i is the number of heads that already failed the previous step.
377  */
378 static size_t
379 try_enable_output(struct ivi_output *output, size_t i)
380 {
381         for (; i < output->add_len; ++i) {
382                 struct weston_head *head;
383
384                 if (weston_output_enable(output->output) == 0)
385                         break;
386
387                 head = output->add[output->add_len - 1];
388                 memmove(&output->add[i + 1], &output->add[i],
389                         sizeof output->add[0] * (output->add_len - i));
390                 output->add[i] = head;
391
392                 weston_head_detach(head);
393         }
394
395         return i;
396 }
397
398 static int
399 try_attach_enable_heads(struct ivi_output *output)
400 {
401         size_t fail_len;
402         assert(!output->output->enabled);
403
404         fail_len = try_attach_heads(output);
405
406         if (configure_output(output) < 0)
407                 return -1;
408
409         fail_len = try_enable_output(output, fail_len);
410
411         /* All heads failed to be attached */
412         if (fail_len == output->add_len)
413                 return -1;
414
415         /* For each successful head attached */
416         for (size_t i = fail_len; i < output->add_len; ++i)
417                 add_head_destroyed_listener(output->add[i]);
418
419         output->add_len = fail_len;
420         return 0;
421 }
422
423 static int
424 process_output(struct ivi_output *output)
425 {
426         if (output->output->enabled) {
427                 output->add_len = try_attach_heads(output);
428                 return output->add_len == 0 ? 0 : -1;
429         }
430
431         return try_attach_enable_heads(output);
432 }
433
434 static void
435 head_disable(struct ivi_compositor *ivi, struct weston_head *head)
436 {
437         struct weston_output *output;
438         struct ivi_output *ivi_output;
439         struct wl_listener *listener;
440
441         output = weston_head_get_output(head);
442         assert(output);
443
444         listener = weston_output_get_destroy_listener(output,
445                                                       handle_output_destroy);
446         assert(listener);
447
448         ivi_output = wl_container_of(listener, ivi_output, output_destroy);
449         assert(ivi_output->output == output);
450
451         weston_head_detach(head);
452         if (count_heads(ivi_output->output) == 0) {
453                 weston_output_disable(ivi_output->output);
454         }
455 }
456
457 static struct weston_config_section *
458 find_controlling_output_config(struct weston_config *config,
459                                const char *name)
460 {
461         struct weston_config_section *section;
462         char *same_as;
463         int depth = 0;
464
465         same_as = strdup(name);
466         do {
467                 section = weston_config_get_section(config, "output",
468                                                     "name", same_as);
469                 if (!section && depth > 0)
470                         weston_log("Configuration error: output section reffered"
471                                    "to by same-as=%s not found.\n", same_as);
472                 free(same_as);
473
474                 if (!section)
475                         return NULL;
476
477                 if (depth++ > 8) {
478                         weston_log("Configuration error: same-as nested too "
479                                    "deep for output '%s'.\n", name);
480                         return NULL;
481                 }
482
483                 weston_config_section_get_string(section, "same-as",
484                                                  &same_as, NULL);
485         } while (same_as);
486
487         return section;
488 }
489
490 static void
491 head_prepare_enable(struct ivi_compositor *ivi, struct weston_head *head)
492 {
493         const char *name = weston_head_get_name(head);
494         struct weston_config_section *section;
495         struct ivi_output *output;
496         char *output_name = NULL;
497
498         section = find_controlling_output_config(ivi->config, name);
499         if (section) {
500                 char *mode;
501
502                 weston_config_section_get_string(section, "mode", &mode, NULL);
503                 if (mode && strcmp(mode, "off") == 0) {
504                         free(mode);
505                         return;
506                 }
507                 free(mode);
508
509                 weston_config_section_get_string(section, "name",
510                                                  &output_name, NULL);
511         } else {
512                 output_name = strdup(name);
513         }
514
515         if (!output_name)
516                 return;
517
518         output = ivi_ensure_output(ivi, output_name, section);
519         if (!output)
520                 return;
521
522         if (output->add_len >= ARRAY_LENGTH(output->add))
523                 return;
524
525         output->add[output->add_len++] = head;
526 }
527
528 static void
529 heads_changed(struct wl_listener *listener, void *arg)
530 {
531         struct weston_compositor *compositor = arg;
532         struct weston_head *head = NULL;
533         struct ivi_compositor *ivi = to_ivi_compositor(compositor);
534         struct ivi_output *output;
535
536         while ((head = weston_compositor_iterate_heads(ivi->compositor, head))) {
537                 bool connected = weston_head_is_connected(head);
538                 bool enabled = weston_head_is_enabled(head);
539                 bool changed = weston_head_is_device_changed(head);
540                 bool non_desktop = weston_head_is_non_desktop(head);
541
542                 if (connected && !enabled && !non_desktop)
543                         head_prepare_enable(ivi, head);
544                 else if (!connected && enabled)
545                         head_disable(ivi, head);
546                 else if (enabled && changed)
547                         weston_log("Detected a monitor change on head '%s', "
548                                    "not bothering to do anything about it.\n",
549                                    weston_head_get_name(head));
550
551                 weston_head_reset_device_changed(head);
552         }
553
554         wl_list_for_each(output, &ivi->outputs, link) {
555                 if (output->add_len == 0)
556                         continue;
557
558                 if (process_output(output) < 0) {
559                         output->add_len = 0;
560                         ivi->init_failed = true;
561                 }
562         }
563 }
564
565 #ifdef HAVE_WALTHAM
566 static int
567 load_waltham_plugin(struct ivi_compositor *ivi, struct weston_config *config)
568 {
569         struct weston_compositor *compositor = ivi->compositor;
570         int (*module_init)(struct weston_compositor *wc);
571
572         module_init = weston_load_module("waltham-transmitter.so",
573                                          "wet_module_init");
574         if (!module_init)
575                 return -1;
576
577         if (module_init(compositor) < 0)
578                 return -1;
579
580         ivi->waltham_transmitter_api = weston_get_transmitter_api(compositor);
581         if (!ivi->waltham_transmitter_api) {
582                 weston_log("Failed to load waltham-transmitter plugin.\n");
583                 return -1;
584         }
585
586         weston_log("waltham-transmitter plug-in loaded\n");
587         return 0;
588 }
589 #else
590 static int
591 load_waltham_plugin(struct ivi_compositor *ivi, struct weston_config *config)
592 {
593         return -1;
594 }
595 #endif
596
597 #ifdef HAVE_REMOTING
598 static int
599 drm_backend_remoted_output_configure(struct weston_output *output,
600                                      struct weston_config_section *section,
601                                      char *modeline,
602                                      const struct weston_remoting_api *api)
603 {
604         char *gbm_format = NULL;
605         char *seat = NULL;
606         char *host = NULL;
607         char *pipeline = NULL;
608         int port, ret;
609         int32_t scale = 1;
610         uint32_t transform = WL_OUTPUT_TRANSFORM_NORMAL;
611         char *trans;
612
613         ret = api->set_mode(output, modeline);
614         if (ret < 0) {
615                 weston_log("Cannot configure an output \"%s\" using "
616                                 "weston_remoting_api. Invalid mode\n",
617                                 output->name);
618                 return -1;
619         }
620
621         weston_config_section_get_int(section, "scale", &scale, 1);
622         weston_output_set_scale(output, scale);
623
624         weston_config_section_get_string(section, "transform", &trans, "normal");
625         if (parse_transform(trans, &transform) < 0) {
626                 weston_log("Invalid transform \"%s\" for output %s\n",
627                            trans, output->name);
628         }
629         weston_output_set_transform(output, transform);
630
631         weston_config_section_get_string(section, "gbm-format",
632                                          &gbm_format, NULL);
633         api->set_gbm_format(output, gbm_format);
634         free(gbm_format);
635
636         weston_config_section_get_string(section, "seat", &seat, "");
637
638         api->set_seat(output, seat);
639         free(seat);
640
641         weston_config_section_get_string(section, "gst-pipeline", &pipeline,
642                         NULL);
643         if (pipeline) {
644                 api->set_gst_pipeline(output, pipeline);
645                 free(pipeline);
646                 return 0;
647         }
648
649         weston_config_section_get_string(section, "host", &host, NULL);
650         weston_config_section_get_int(section, "port", &port, 0);
651         if (!host || port <= 0 || 65533 < port) {
652                 weston_log("Cannot configure an output \"%s\". "
653                                 "Need to specify gst-pipeline or "
654                                 "host and port (1-65533).\n", output->name);
655         }
656         api->set_host(output, host);
657         free(host);
658         api->set_port(output, port);
659
660         return 0;
661 }
662
663
664 static int
665 remote_output_init(struct ivi_output *ivi_output,
666                    struct weston_compositor *compositor,
667                    struct weston_config_section *section,
668                    const struct weston_remoting_api *api)
669 {
670         char *output_name, *modeline = NULL;
671         int ret = -1;
672
673         weston_config_section_get_string(section, "name", &output_name, NULL);
674         if (!output_name)
675                 return ret;
676
677         weston_config_section_get_string(section, "mode", &modeline, "off");
678         if (strcmp(modeline, "off") == 0)
679                 goto err;
680
681         ivi_output->output = api->create_output(compositor, output_name);
682         if (!ivi_output->output) {
683                 weston_log("Cannot create remoted output \"%s\".\n",
684                                 output_name);
685                 goto err;
686         }
687
688         ret = drm_backend_remoted_output_configure(ivi_output->output, section,
689                                                    modeline, api);
690         if (ret < 0) {
691                 weston_log("Cannot configure remoted output \"%s\".\n",
692                                 output_name);
693                 goto err;
694         }
695
696         if (weston_output_enable(ivi_output->output) < 0) {
697                 weston_log("Enabling remoted output \"%s\" failed.\n",
698                                 output_name);
699                 goto err;
700         }
701
702         free(modeline);
703         free(output_name);
704         weston_log("remoted output '%s' enabled\n", ivi_output->output->name);
705
706         return 0;
707
708 err:
709         free(modeline);
710         free(output_name);
711         if (ivi_output->output)
712                 weston_output_destroy(ivi_output->output);
713
714         return ret;
715 }
716
717 static void
718 ivi_enable_remote_outputs(struct ivi_compositor *ivi)
719 {
720         struct weston_config_section *remote_section = NULL;
721         const char *section_name;
722         struct weston_config *config = ivi->config;
723
724         while (weston_config_next_section(config, &remote_section, &section_name)) {
725                 if (strcmp(section_name, "remote-output"))
726                         continue;
727
728                 struct ivi_output *ivi_output = NULL;
729                 bool output_found = false;
730                 char *_name = NULL;
731
732                 weston_config_section_get_string(remote_section,
733                                                  "name", &_name, NULL);
734                 wl_list_for_each(ivi_output, &ivi->outputs, link) {
735                         if (!strcmp(ivi_output->name, _name)) {
736                                 output_found = true;
737                                 break;
738                         }
739                 }
740
741                 if (output_found) {
742                         free(_name);
743                         continue;
744                 }
745
746                 ivi_output = zalloc(sizeof(*ivi_output));
747
748                 ivi_output->ivi = ivi;
749                 ivi_output->name = _name;
750                 ivi_output->config = remote_section;
751                 ivi_output->type = OUTPUT_REMOTE;
752
753                 if (remote_output_init(ivi_output, ivi->compositor,
754                                        remote_section, ivi->remoting_api)) {
755                         free(ivi_output->name);
756                         free(ivi_output);
757                         continue;
758                 }
759
760                 ivi_output->output_destroy.notify = handle_output_destroy;
761                 weston_output_add_destroy_listener(ivi_output->output,
762                                                    &ivi_output->output_destroy);
763
764                 wl_list_insert(&ivi->outputs, &ivi_output->link);
765                 ivi_output_configure_app_id(ivi_output);
766         }
767 }
768
769 static int
770 load_remoting_plugin(struct ivi_compositor *ivi, struct weston_config *config)
771 {
772         struct weston_compositor *compositor = ivi->compositor;
773         int (*module_init)(struct weston_compositor *wc);
774
775         module_init = weston_load_module("remoting-plugin.so",
776                                          "weston_module_init");
777         if (!module_init)
778                 return -1;
779
780         if (module_init(compositor) < 0)
781                 return -1;
782
783         ivi->remoting_api = weston_remoting_get_api(compositor);
784         if (!ivi->remoting_api)
785                 return -1;
786         return 0;
787 }
788 #else
789 static int
790 load_remoting_plugin(struct weston_compositor *compositor, struct weston_config *config)
791 {
792         return -1;
793 }
794 #endif
795
796 static int
797 load_drm_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
798 {
799         struct weston_drm_backend_config config = {
800                 .base = {
801                         .struct_version = WESTON_DRM_BACKEND_CONFIG_VERSION,
802                         .struct_size = sizeof config,
803                 },
804         };
805         struct weston_config_section *section;
806         int use_current_mode = 0;
807         int use_pixman = 0;
808         bool use_shadow;
809         int ret;
810
811         const struct weston_option options[] = {
812                 { WESTON_OPTION_STRING, "seat", 0, &config.seat_id },
813                 { WESTON_OPTION_INTEGER, "tty", 0, &config.tty },
814                 { WESTON_OPTION_STRING, "drm-device", 0, &config.specific_device },
815                 { WESTON_OPTION_BOOLEAN, "current-mode", 0, &use_current_mode },
816                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman },
817         };
818
819         parse_options(options, ARRAY_LENGTH(options), argc, argv);
820         config.use_pixman = use_pixman;
821         ivi->cmdline.use_current_mode = use_current_mode;
822
823         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
824         weston_config_section_get_string(section, "gbm-format",
825                                          &config.gbm_format, NULL);
826         weston_config_section_get_uint(section, "pageflip-timeout",
827                                        &config.pageflip_timeout, 0);
828         weston_config_section_get_bool(section, "pixman-shadow", &use_shadow, 1);
829         config.use_pixman_shadow = use_shadow;
830
831         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_DRM,
832                                              &config.base);
833         if (ret < 0)
834                 return ret;
835
836         ivi->drm_api = weston_drm_output_get_api(ivi->compositor);
837         if (!ivi->drm_api) {
838                 weston_log("Cannot use drm output api.\n");
839                 ret = -1;
840                 goto error;
841         }
842
843         load_remoting_plugin(ivi, ivi->config);
844         load_waltham_plugin(ivi, ivi->config);
845
846 error:
847         free(config.gbm_format);
848         free(config.seat_id);
849         return ret;
850 }
851
852 static void
853 windowed_parse_common_options(struct ivi_compositor *ivi, int *argc, char *argv[],
854                               bool *use_pixman, bool *fullscreen, int *output_count)
855 {
856         struct weston_config_section *section;
857         bool pixman;
858         int fs = 0;
859
860         const struct weston_option options[] = {
861                 { WESTON_OPTION_INTEGER, "width", 0, &ivi->cmdline.width },
862                 { WESTON_OPTION_INTEGER, "height", 0, &ivi->cmdline.height },
863                 { WESTON_OPTION_INTEGER, "scale", 0, &ivi->cmdline.scale },
864                 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &pixman },
865                 { WESTON_OPTION_BOOLEAN, "fullscreen", 0, &fs },
866                 { WESTON_OPTION_INTEGER, "output-count", 0, output_count },
867         };
868
869         section = weston_config_get_section(ivi->config, "core", NULL, NULL);
870         weston_config_section_get_bool(section, "use-pixman", &pixman, 0);
871
872         *output_count = 1;
873         parse_options(options, ARRAY_LENGTH(options), argc, argv);
874         *use_pixman = pixman;
875         *fullscreen = fs;
876 }
877
878 static int
879 windowed_create_outputs(struct ivi_compositor *ivi, int output_count,
880                         const char *match_prefix, const char *name_prefix)
881 {
882         struct weston_config_section *section = NULL;
883         const char *section_name;
884         char *default_output = NULL;
885         int i = 0;
886         size_t match_len = strlen(match_prefix);
887
888         while (weston_config_next_section(ivi->config, &section, &section_name)) {
889                 char *output_name;
890
891                 if (i >= output_count)
892                         break;
893
894                 if (strcmp(section_name, "output") != 0)
895                         continue;
896
897                 weston_config_section_get_string(section, "name", &output_name, NULL);
898                 if (output_name == NULL)
899                         continue;
900                 if (strncmp(output_name, match_prefix, match_len) != 0) {
901                         free(output_name);
902                         continue;
903                 }
904
905                 if (ivi->window_api->create_head(ivi->compositor, output_name) < 0) {
906                         free(output_name);
907                         return -1;
908                 }
909
910                 free(output_name);
911                 ++i;
912         }
913
914         for (; i < output_count; ++i) {
915                 if (asprintf(&default_output, "%s%d", name_prefix, i) < 0)
916                         return -1;
917
918                 if (ivi->window_api->create_head(ivi->compositor, default_output) < 0) {
919                         free(default_output);
920                         return -1;
921                 }
922
923                 free(default_output);
924         }
925
926         return 0;
927 }
928
929 static int
930 load_wayland_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
931 {
932         struct weston_wayland_backend_config config = {
933                 .base = {
934                         .struct_version = WESTON_WAYLAND_BACKEND_CONFIG_VERSION,
935                         .struct_size = sizeof config,
936                 },
937         };
938         struct weston_config_section *section;
939         int sprawl = 0;
940         int output_count;
941         int ret;
942
943         const struct weston_option options[] = {
944                 { WESTON_OPTION_STRING, "display", 0, &config.display_name },
945                 { WESTON_OPTION_STRING, "sprawl", 0, &sprawl },
946         };
947
948         windowed_parse_common_options(ivi, argc, argv, &config.use_pixman,
949                                       &config.fullscreen, &output_count);
950
951         parse_options(options, ARRAY_LENGTH(options), argc, argv);
952         config.sprawl = sprawl;
953
954         section = weston_config_get_section(ivi->config, "shell", NULL, NULL);
955         weston_config_section_get_string(section, "cursor-theme",
956                                          &config.cursor_theme, NULL);
957         weston_config_section_get_int(section, "cursor-size",
958                                       &config.cursor_size, 32);
959
960         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_WAYLAND,
961                                              &config.base);
962
963         free(config.cursor_theme);
964         free(config.display_name);
965
966         if (ret < 0)
967                 return ret;
968
969         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
970
971         /*
972          * We will just assume if load_backend() finished cleanly and
973          * windowed_output_api is not present that wayland backend is started
974          * with --sprawl or runs on fullscreen-shell. In this case, all values
975          * are hardcoded, so nothing can be configured; simply create and
976          * enable an output.
977          */
978         if (ivi->window_api == NULL)
979                 return 0;
980
981         return windowed_create_outputs(ivi, output_count, "WL", "wayland");
982 }
983
984 #ifdef HAVE_BACKEND_X11
985 static int
986 load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
987 {
988         struct weston_x11_backend_config config = {
989                 .base = {
990                         .struct_version = WESTON_X11_BACKEND_CONFIG_VERSION,
991                         .struct_size = sizeof config,
992                 },
993         };
994         int no_input = 0;
995         int output_count;
996         int ret;
997
998         const struct weston_option options[] = {
999                { WESTON_OPTION_BOOLEAN, "no-input", 0, &no_input },
1000         };
1001
1002         windowed_parse_common_options(ivi, argc, argv, &config.use_pixman,
1003                                       &config.fullscreen, &output_count);
1004
1005         parse_options(options, ARRAY_LENGTH(options), argc, argv);
1006         config.no_input = no_input;
1007
1008         ret = weston_compositor_load_backend(ivi->compositor, WESTON_BACKEND_X11,
1009                                              &config.base);
1010
1011         if (ret < 0)
1012                 return ret;
1013
1014         ivi->window_api = weston_windowed_output_get_api(ivi->compositor);
1015         if (!ivi->window_api) {
1016                 weston_log("Cannot use weston_windowed_output_api.\n");
1017                 return -1;
1018         }
1019
1020         return windowed_create_outputs(ivi, output_count, "X", "screen");
1021 }
1022 #else
1023 static int
1024 load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
1025 {
1026         return -1;
1027 }
1028 #endif
1029
1030 static int
1031 load_backend(struct ivi_compositor *ivi, const char *backend,
1032              int *argc, char *argv[])
1033 {
1034         if (strcmp(backend, "drm-backend.so") == 0) {
1035                 return load_drm_backend(ivi, argc, argv);
1036         } else if (strcmp(backend, "wayland-backend.so") == 0) {
1037                 return load_wayland_backend(ivi, argc, argv);
1038         } else if (strcmp(backend, "x11-backend.so") == 0) {
1039                 return load_x11_backend(ivi, argc, argv);
1040         }
1041
1042         weston_log("fatal: unknown backend '%s'.\n", backend);
1043         return -1;
1044 }
1045
1046 static char *
1047 choose_default_backend(void)
1048 {
1049         char *backend = NULL;
1050
1051         if (getenv("WAYLAND_DISPLAY") || getenv("WAYLAND_SOCKET"))
1052                 backend = strdup("wayland-backend.so");
1053         else if (getenv("DISPLAY"))
1054                 backend = strdup("x11-backend.so");
1055         else
1056                 backend = strdup("drm-backend.so");
1057
1058         return backend;
1059 }
1060
1061 static int
1062 compositor_init_config(struct weston_compositor *compositor,
1063                        struct weston_config *config)
1064 {
1065         struct xkb_rule_names xkb_names;
1066         struct weston_config_section *section;
1067         int repaint_msec;
1068         bool vt_switching;
1069         bool require_input;
1070
1071         /* agl-compositor.ini [keyboard] */
1072         section = weston_config_get_section(config, "keyboard", NULL, NULL);
1073         weston_config_section_get_string(section, "keymap_rules",
1074                                          (char **) &xkb_names.rules, NULL);
1075         weston_config_section_get_string(section, "keymap_model",
1076                                          (char **) &xkb_names.model, NULL);
1077         weston_config_section_get_string(section, "keymap_layout",
1078                                          (char **) &xkb_names.layout, NULL);
1079         weston_config_section_get_string(section, "keymap_variant",
1080                                          (char **) &xkb_names.variant, NULL);
1081         weston_config_section_get_string(section, "keymap_options",
1082                                          (char **) &xkb_names.options, NULL);
1083
1084         if (weston_compositor_set_xkb_rule_names(compositor, &xkb_names) < 0)
1085                 return -1;
1086
1087         weston_config_section_get_int(section, "repeat-rate",
1088                                       &compositor->kb_repeat_rate, 40);
1089         weston_config_section_get_int(section, "repeat-delay",
1090                                       &compositor->kb_repeat_delay, 400);
1091
1092         weston_config_section_get_bool(section, "vt-switching",
1093                                        &vt_switching, true);
1094         compositor->vt_switching = vt_switching;
1095
1096         /* agl-compositor.ini [core] */
1097         section = weston_config_get_section(config, "core", NULL, NULL);
1098
1099         weston_config_section_get_bool(section, "require-input", &require_input, true);
1100         compositor->require_input = require_input;
1101
1102         weston_config_section_get_int(section, "repaint-window", &repaint_msec,
1103                                       compositor->repaint_msec);
1104         if (repaint_msec < -10 || repaint_msec > 1000) {
1105                 weston_log("Invalid repaint_window value in config: %d\n",
1106                            repaint_msec);
1107         } else {
1108                 compositor->repaint_msec = repaint_msec;
1109         }
1110         weston_log("Output repaint window is %d ms maximum.\n",
1111                    compositor->repaint_msec);
1112
1113         return 0;
1114 }
1115
1116 struct ivi_surface *
1117 to_ivi_surface(struct weston_surface *surface)
1118 {
1119         struct weston_desktop_surface *dsurface;
1120
1121         dsurface = weston_surface_get_desktop_surface(surface);
1122         if (!dsurface)
1123                 return NULL;
1124
1125         return weston_desktop_surface_get_user_data(dsurface);
1126 }
1127
1128 static void
1129 activate_binding(struct weston_seat *seat,
1130                  struct weston_view *focus_view)
1131 {
1132         struct weston_surface *focus = focus_view->surface;
1133         struct weston_surface *main_surface =
1134                 weston_surface_get_main_surface(focus);
1135         struct ivi_surface *surface;
1136
1137         surface = to_ivi_surface(main_surface);
1138         if (!surface)
1139                 return;
1140
1141         weston_seat_set_keyboard_focus(seat, focus);
1142 }
1143
1144 static void
1145 click_to_activate_binding(struct weston_pointer *pointer,
1146                           const struct timespec *time,
1147                           uint32_t button, void *data)
1148 {
1149         if (pointer->grab != &pointer->default_grab)
1150                 return;
1151         if (pointer->focus == NULL)
1152                 return;
1153
1154         activate_binding(pointer->seat, pointer->focus);
1155 }
1156
1157 static void
1158 touch_to_activate_binding(struct weston_touch *touch,
1159                           const struct timespec *time,
1160                           void *data)
1161 {
1162         if (touch->grab != &touch->default_grab)
1163                 return;
1164         if (touch->focus == NULL)
1165                 return;
1166
1167         activate_binding(touch->seat, touch->focus);
1168 }
1169
1170 static void
1171 add_bindings(struct weston_compositor *compositor)
1172 {
1173         weston_compositor_add_button_binding(compositor, BTN_LEFT, 0,
1174                                              click_to_activate_binding,
1175                                              NULL);
1176         weston_compositor_add_button_binding(compositor, BTN_RIGHT, 0,
1177                                              click_to_activate_binding,
1178                                              NULL);
1179         weston_compositor_add_touch_binding(compositor, 0,
1180                                             touch_to_activate_binding,
1181                                             NULL);
1182 }
1183
1184 static int
1185 create_listening_socket(struct wl_display *display, const char *socket_name)
1186 {
1187         if (socket_name) {
1188                 if (wl_display_add_socket(display, socket_name)) {
1189                         weston_log("fatal: failed to add socket: %s\n",
1190                                    strerror(errno));
1191                         return -1;
1192                 }
1193         } else {
1194                 socket_name = wl_display_add_socket_auto(display);
1195                 if (!socket_name) {
1196                         weston_log("fatal: failed to add socket: %s\n",
1197                                    strerror(errno));
1198                         return -1;
1199                 }
1200         }
1201
1202         setenv("WAYLAND_DISPLAY", socket_name, 1);
1203
1204         return 0;
1205 }
1206
1207 static bool
1208 global_filter(const struct wl_client *client, const struct wl_global *global,
1209               void *data)
1210 {
1211         return true;
1212 }
1213
1214 static int
1215 load_config(struct weston_config **config, bool no_config,
1216             const char *config_file)
1217 {
1218         const char *file = "agl-compositor.ini";
1219         const char *full_path;
1220
1221         if (config_file)
1222                 file = config_file;
1223
1224         if (!no_config)
1225                 *config = weston_config_parse(file);
1226
1227         if (*config) {
1228                 full_path = weston_config_get_full_path(*config);
1229
1230                 weston_log("Using config file '%s'.\n", full_path);
1231                 setenv(WESTON_CONFIG_FILE_ENV_VAR, full_path, 1);
1232
1233                 return 0;
1234         }
1235
1236         if (config_file && !no_config) {
1237                 weston_log("fatal: error opening or reading config file '%s'.\n",
1238                         config_file);
1239
1240                 return -1;
1241         }
1242
1243         weston_log("Starting with no config file.\n");
1244         setenv(WESTON_CONFIG_FILE_ENV_VAR, "", 1);
1245
1246         return 0;
1247 }
1248
1249 static FILE *logfile;
1250
1251 static char *
1252 log_timestamp(char *buf, size_t len)
1253 {
1254         struct timeval tv;
1255         struct tm *brokendown_time;
1256         char datestr[128];
1257         char timestr[128];
1258
1259         gettimeofday(&tv, NULL);
1260
1261         brokendown_time = localtime(&tv.tv_sec);
1262         if (brokendown_time == NULL) {
1263                 snprintf(buf, len, "%s", "[(NULL)localtime] ");
1264                 return buf;
1265         }
1266
1267         memset(datestr, 0, sizeof(datestr));
1268         if (brokendown_time->tm_mday != cached_tm_mday) {
1269                 strftime(datestr, sizeof(datestr), "Date: %Y-%m-%d %Z\n",
1270                                 brokendown_time);
1271                 cached_tm_mday = brokendown_time->tm_mday;
1272         }
1273
1274         strftime(timestr, sizeof(timestr), "%H:%M:%S", brokendown_time);
1275         /* if datestr is empty it prints only timestr*/
1276         snprintf(buf, len, "%s[%s.%03li]", datestr,
1277                         timestr, (tv.tv_usec / 1000));
1278
1279         return buf;
1280 }
1281
1282 static void
1283 custom_handler(const char *fmt, va_list arg)
1284 {
1285         char timestr[512];
1286
1287         weston_log_scope_printf(log_scope, "%s libwayland: ",
1288                         log_timestamp(timestr, sizeof(timestr)));
1289         weston_log_scope_vprintf(log_scope, fmt, arg);
1290 }
1291
1292 static void
1293 log_file_open(const char *filename)
1294 {
1295         wl_log_set_handler_server(custom_handler);
1296
1297         if (filename)
1298                 logfile = fopen(filename, "a");
1299
1300         if (!logfile) {
1301                 logfile = stderr;
1302         } else {
1303                 os_fd_set_cloexec(fileno(logfile));
1304                 setvbuf(logfile, NULL, _IOLBF, 256);
1305         }
1306 }
1307
1308 static void
1309 log_file_close(void)
1310 {
1311         if (logfile && logfile != stderr)
1312                 fclose(logfile);
1313         logfile = stderr;
1314 }
1315
1316 static int
1317 vlog(const char *fmt, va_list ap)
1318 {
1319         const char *oom = "Out of memory";
1320         char timestr[128];
1321         int len = 0;
1322         char *str;
1323
1324         if (weston_log_scope_is_enabled(log_scope)) {
1325                 int len_va;
1326                 char *xlog_timestamp = log_timestamp(timestr, sizeof(timestr));
1327                 len_va = vasprintf(&str, fmt, ap);
1328                 if (len_va >= 0) {
1329                         len = weston_log_scope_printf(log_scope, "%s %s",
1330                                         xlog_timestamp, str);
1331                         free(str);
1332                 } else {
1333                         len = weston_log_scope_printf(log_scope, "%s %s",
1334                                         xlog_timestamp, oom);
1335                 }
1336         }
1337
1338         return len;
1339 }
1340
1341
1342 static int
1343 vlog_continue(const char *fmt, va_list ap)
1344 {
1345         return weston_log_scope_vprintf(log_scope, fmt, ap);
1346 }
1347
1348 static int
1349 on_term_signal(int signo, void *data)
1350 {
1351         struct wl_display *display = data;
1352
1353         weston_log("caught signal %d\n", signo);
1354         wl_display_terminate(display);
1355
1356         return 1;
1357 }
1358
1359 static void
1360 handle_exit(struct weston_compositor *compositor)
1361 {
1362         wl_display_terminate(compositor->wl_display);
1363 }
1364
1365 static void
1366 usage(int error_code)
1367 {
1368         FILE *out = error_code == EXIT_SUCCESS ? stdout : stderr;
1369         fprintf(out,
1370                 "Usage: agl-compositor [OPTIONS]\n"
1371                 "\n"
1372                 "This is " PACKAGE_STRING ", the reference compositor for\n"
1373                 "Automotive Grade Linux. Weston-ivi supports multiple backends, and depending\n"
1374                 "on which backend is in use different options will be accepted.\n"
1375                 "\n"
1376                 "Core options:\n"
1377                 "\n"
1378                 "  --version\t\tPrint agl-compositor version\n"
1379                 "  -B, --backend=MODULE\tBackend module, one of\n"
1380                         "\t\t\t\tdrm-backend.so\n"
1381                         "\t\t\t\twayland-backend.so\n"
1382                         "\t\t\t\tx11-backend.so\n"
1383                 "  -S, --socket=NAME\tName of socket to listen on\n"
1384                 "  --log=FILE\t\tLog to the given file\n"
1385                 "  -c, --config=FILE\tConfig file to load, defaults to agl-compositor.ini\n"
1386                 "  --no-config\t\tDo not read agl-compositor.ini\n"
1387                 "  --debug\t\tEnable debug extension(s)\n"
1388                 "  -h, --help\t\tThis help message\n"
1389                 "\n");
1390         exit(error_code);
1391 }
1392
1393 int main(int argc, char *argv[])
1394 {
1395         struct ivi_compositor ivi = { 0 };
1396         struct wl_display *display = NULL;
1397         struct wl_event_loop *loop;
1398         struct wl_event_source *signals[3] = { 0 };
1399         struct weston_config_section *section;
1400         /* Command line options */
1401         char *backend = NULL;
1402         char *socket_name = NULL;
1403         char *log = NULL;
1404         int help = 0;
1405         int version = 0;
1406         int no_config = 0;
1407         int debug = 0;
1408         char *config_file = NULL;
1409         struct weston_log_context *log_ctx = NULL;
1410         struct weston_log_subscriber *logger;
1411         int ret = EXIT_FAILURE;
1412
1413         const struct weston_option core_options[] = {
1414                 { WESTON_OPTION_STRING, "backend", 'B', &backend },
1415                 { WESTON_OPTION_STRING, "socket", 'S', &socket_name },
1416                 { WESTON_OPTION_STRING, "log", 0, &log },
1417                 { WESTON_OPTION_BOOLEAN, "help", 'h', &help },
1418                 { WESTON_OPTION_BOOLEAN, "version", 0, &version },
1419                 { WESTON_OPTION_BOOLEAN, "no-config", 0, &no_config },
1420                 { WESTON_OPTION_BOOLEAN, "debug", 0, &debug },
1421                 { WESTON_OPTION_STRING, "config", 'c', &config_file },
1422         };
1423
1424         wl_list_init(&ivi.outputs);
1425         wl_list_init(&ivi.surfaces);
1426         wl_list_init(&ivi.pending_surfaces);
1427         wl_list_init(&ivi.popup_pending_apps);
1428         wl_list_init(&ivi.fullscreen_pending_apps);
1429         wl_list_init(&ivi.split_pending_apps);
1430         wl_list_init(&ivi.remote_pending_apps);
1431         wl_list_init(&ivi.desktop_clients);
1432
1433         /* Prevent any clients we spawn getting our stdin */
1434         os_fd_set_cloexec(STDIN_FILENO);
1435
1436         parse_options(core_options, ARRAY_LENGTH(core_options), &argc, argv);
1437
1438         if (help)
1439                 usage(EXIT_SUCCESS);
1440
1441         if (version) {
1442                 printf(PACKAGE_STRING "\n");
1443                 return EXIT_SUCCESS;
1444         }
1445
1446         log_ctx = weston_log_ctx_compositor_create();
1447         if (!log_ctx) {
1448                 fprintf(stderr, "Failed to initialize weston debug framework.\n");
1449                 return ret;
1450         }
1451
1452         log_scope = weston_compositor_add_log_scope(log_ctx, "log",
1453                                                     "agl-compositor log\n",
1454                                                     NULL, NULL, NULL);
1455
1456         log_file_open(log);
1457         weston_log_set_handler(vlog, vlog_continue);
1458
1459         logger = weston_log_subscriber_create_log(logfile);
1460         weston_log_subscribe(log_ctx, logger, "log");
1461
1462         if (load_config(&ivi.config, no_config, config_file) < 0)
1463                 goto error_signals;
1464         section = weston_config_get_section(ivi.config, "core", NULL, NULL);
1465         if (!backend) {
1466                 weston_config_section_get_string(section, "backend", &backend,
1467                                                  NULL);
1468                 if (!backend)
1469                         backend = choose_default_backend();
1470         }
1471         /* from [core] */
1472         weston_config_section_get_bool(section, "hide-cursor", &ivi.hide_cursor, false);
1473
1474         display = wl_display_create();
1475         loop = wl_display_get_event_loop(display);
1476
1477         wl_display_set_global_filter(display,
1478                                      global_filter, &ivi);
1479
1480         /* Register signal handlers so we shut down cleanly */
1481
1482         signals[0] = wl_event_loop_add_signal(loop, SIGTERM, on_term_signal,
1483                                               display);
1484         signals[1] = wl_event_loop_add_signal(loop, SIGINT, on_term_signal,
1485                                               display);
1486         signals[2] = wl_event_loop_add_signal(loop, SIGQUIT, on_term_signal,
1487                                               display);
1488
1489         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
1490                 if (!signals[i])
1491                         goto error_signals;
1492
1493         ivi.compositor = weston_compositor_create(display, log_ctx, &ivi);
1494         if (!ivi.compositor) {
1495                 weston_log("fatal: failed to create compositor.\n");
1496                 goto error_signals;
1497         }
1498
1499         if (compositor_init_config(ivi.compositor, ivi.config) < 0)
1500                 goto error_compositor;
1501
1502         if (load_backend(&ivi, backend, &argc, argv) < 0) {
1503                 weston_log("fatal: failed to create compositor backend.\n");
1504                 goto error_compositor;
1505         }
1506
1507         ivi.heads_changed.notify = heads_changed;
1508         weston_compositor_add_heads_changed_listener(ivi.compositor,
1509                                                      &ivi.heads_changed);
1510
1511         if (ivi_desktop_init(&ivi) < 0)
1512                 goto error_compositor;
1513
1514         ivi_seat_init(&ivi);
1515
1516         if (ivi_policy_init(&ivi) < 0)
1517                 goto error_compositor;
1518
1519         if (ivi_shell_init(&ivi) < 0)
1520                 goto error_compositor;
1521
1522         add_bindings(ivi.compositor);
1523
1524         weston_compositor_flush_heads_changed(ivi.compositor);
1525
1526         if (ivi.remoting_api)
1527                 ivi_enable_remote_outputs(&ivi);
1528
1529         if (create_listening_socket(display, socket_name) < 0)
1530                 goto error_compositor;
1531
1532         ivi_shell_init_black_fs(&ivi);
1533
1534         ivi.compositor->exit = handle_exit;
1535
1536         weston_compositor_wake(ivi.compositor);
1537
1538         ivi_shell_create_global(&ivi);
1539         ivi_launch_shell_client(&ivi);
1540         if (debug)
1541                 ivi_screenshooter_create(&ivi);
1542         ivi_agl_systemd_notify(&ivi);
1543
1544         wl_display_run(display);
1545
1546         ret = ivi.compositor->exit_code;
1547
1548         wl_display_destroy_clients(display);
1549
1550 error_compositor:
1551         weston_compositor_tear_down(ivi.compositor);
1552
1553         weston_compositor_log_scope_destroy(log_scope);
1554         log_scope = NULL;
1555
1556         weston_log_ctx_compositor_destroy(ivi.compositor);
1557         weston_compositor_destroy(ivi.compositor);
1558
1559         weston_log_subscriber_destroy_log(logger);
1560
1561         ivi_policy_destroy(ivi.policy);
1562
1563 error_signals:
1564         for (size_t i = 0; i < ARRAY_LENGTH(signals); ++i)
1565                 if (signals[i])
1566                         wl_event_source_remove(signals[i]);
1567
1568         wl_display_destroy(display);
1569
1570         log_file_close();
1571         if (ivi.config)
1572                 weston_config_destroy(ivi.config);
1573
1574         return ret;
1575 }