compositor/compositor-drm.c

   1 /*
   2  * Copyright © 2008-2010 Kristian Høgsberg
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software Foundation,
  16  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17  */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22 #include <fcntl.h>
  23 #include <unistd.h>
  24
  25 #include <signal.h>
  26 #include <linux/kd.h>
  27 #include <linux/vt.h>
  28 #include <linux/input.h>
  29
  30 #define GL_GLEXT_PROTOTYPES
  31 #define EGL_EGLEXT_PROTOTYPES
  32 #include <GLES2/gl2.h>
  33 #include <GLES2/gl2ext.h>
  34 #include <EGL/egl.h>
  35 #include <EGL/eglext.h>
  36
  37 #include "compositor.h"
  38
  39 struct drm_compositor {
  40         struct wlsc_compositor base;
  41
  42         struct udev *udev;
  43         struct wl_event_source *drm_source;
  44
  45         struct wl_event_source *term_signal_source;
  46
  47         /* tty handling state */
  48         int tty_fd;
  49         uint32_t vt_active : 1;
  50
  51         struct termios terminal_attributes;
  52         struct wl_event_source *tty_input_source;
  53         struct wl_event_source *enter_vt_source;
  54         struct wl_event_source *leave_vt_source;
  55 };
  56
  57 struct drm_output {
  58         struct wlsc_output   base;
  59
  60         drmModeModeInfo mode;
  61         uint32_t crtc_id;
  62         uint32_t connector_id;
  63         GLuint rbo[2];
  64         uint32_t fb_id[2];
  65         EGLImageKHR image[2];
  66         uint32_t current;
  67 };
  68
  69 struct drm_input {
  70         struct wlsc_input_device base;
  71 };
  72
  73 struct evdev_input_device {
  74         struct drm_input *master;
  75         struct wl_event_source *source;
  76         int tool, new_x, new_y;
  77         int base_x, base_y;
  78         int fd;
  79 };
  80
  81 static void evdev_input_device_data(int fd, uint32_t mask, void *data)
  82 {
  83         struct drm_compositor *c;
  84         struct evdev_input_device *device = data;
  85         struct input_event ev[8], *e, *end;
  86         int len, value, dx, dy, absolute_event;
  87         int x, y;
  88         uint32_t time;
  89
  90         c = (struct drm_compositor *) device->master->base.ec;
  91         if (!c->vt_active)
  92                 return;
  93
  94         dx = 0;
  95         dy = 0;
  96         absolute_event = 0;
  97         x = device->master->base.x;
  98         y = device->master->base.y;
  99
 100         len = read(fd, &ev, sizeof ev);
 101         if (len < 0 || len % sizeof e[0] != 0) {
 102                 /* FIXME: handle error... reopen device? */;
 103                 return;
 104         }
 105
 106         e = ev;
 107         end = (void *) ev + len;
 108         for (e = ev; e < end; e++) {
 109                 /* Get the signed value, earlier kernels had this as unsigned */
 110                 value = e->value;
 111                 time = e->time.tv_sec * 1000 + e->time.tv_usec / 1000;
 112
 113                 switch (e->type) {
 114                 case EV_REL:
 115                         switch (e->code) {
 116                         case REL_X:
 117                                 dx += value;
 118                                 break;
 119
 120                         case REL_Y:
 121                                 dy += value;
 122                                 break;
 123                         }
 124                         break;
 125
 126                 case EV_ABS:
 127                         absolute_event = 1;
 128                         switch (e->code) {
 129                         case ABS_X:
 130                                 if (device->new_x) {
 131                                         device->base_x = x - value;
 132                                         device->new_x = 0;
 133                                 }
 134                                 x = device->base_x + value;
 135                                 break;
 136                         case ABS_Y:
 137                                 if (device->new_y) {
 138                                         device->base_y = y - value;
 139                                         device->new_y = 0;
 140                                 }
 141                                 y = device->base_y + value;
 142                                 break;
 143                         }
 144                         break;
 145
 146                 case EV_KEY:
 147                         if (value == 2)
 148                                 break;
 149
 150                         switch (e->code) {
 151                         case BTN_TOUCH:
 152                         case BTN_TOOL_PEN:
 153                         case BTN_TOOL_RUBBER:
 154                         case BTN_TOOL_BRUSH:
 155                         case BTN_TOOL_PENCIL:
 156                         case BTN_TOOL_AIRBRUSH:
 157                         case BTN_TOOL_FINGER:
 158                         case BTN_TOOL_MOUSE:
 159                         case BTN_TOOL_LENS:
 160                                 if (device->tool == 0 && value) {
 161                                         device->new_x = 1;
 162                                         device->new_y = 1;
 163                                 }
 164                                 device->tool = value ? e->code : 0;
 165                                 break;
 166
 167                         case BTN_LEFT:
 168                         case BTN_RIGHT:
 169                         case BTN_MIDDLE:
 170                         case BTN_SIDE:
 171                         case BTN_EXTRA:
 172                         case BTN_FORWARD:
 173                         case BTN_BACK:
 174                         case BTN_TASK:
 175                                 notify_button(&device->master->base,
 176                                               time, e->code, value);
 177                                 break;
 178
 179                         default:
 180                                 notify_key(&device->master->base,
 181                                            time, e->code, value);
 182                                 break;
 183                         }
 184                 }
 185         }
 186
 187         if (dx != 0 || dy != 0)
 188                 notify_motion(&device->master->base, time, x + dx, y + dy);
 189         if (absolute_event && device->tool)
 190                 notify_motion(&device->master->base, time, x, y);
 191 }
 192
 193 static struct evdev_input_device *
 194 evdev_input_device_create(struct drm_input *master,
 195                           struct wl_display *display, const char *path)
 196 {
 197         struct evdev_input_device *device;
 198         struct wl_event_loop *loop;
 199
 200         device = malloc(sizeof *device);
 201         if (device == NULL)
 202                 return NULL;
 203
 204         device->tool = 1;
 205         device->new_x = 1;
 206         device->new_y = 1;
 207         device->master = master;
 208
 209         device->fd = open(path, O_RDONLY);
 210         if (device->fd < 0) {
 211                 free(device);
 212                 fprintf(stderr, "couldn't create pointer for %s: %m\n", path);
 213                 return NULL;
 214         }
 215
 216         loop = wl_display_get_event_loop(display);
 217         device->source = wl_event_loop_add_fd(loop, device->fd,
 218                                               WL_EVENT_READABLE,
 219                                               evdev_input_device_data, device);
 220         if (device->source == NULL) {
 221                 close(device->fd);
 222                 free(device);
 223                 return NULL;
 224         }
 225
 226         return device;
 227 }
 228
 229 static void
 230 drm_input_create(struct drm_compositor *c)
 231 {
 232         struct drm_input *input;
 233         struct udev_enumerate *e;
 234         struct udev_list_entry *entry;
 235         struct udev_device *device;
 236         const char *path;
 237
 238         input = malloc(sizeof *input);
 239         if (input == NULL)
 240                 return;
 241
 242         memset(input, 0, sizeof *input);
 243         wlsc_input_device_init(&input->base, &c->base);
 244
 245         e = udev_enumerate_new(c->udev);
 246         udev_enumerate_add_match_subsystem(e, "input");
 247         udev_enumerate_add_match_property(e, "WAYLAND_SEAT", "1");
 248         udev_enumerate_scan_devices(e);
 249         udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
 250                 path = udev_list_entry_get_name(entry);
 251                 device = udev_device_new_from_syspath(c->udev, path);
 252                 evdev_input_device_create(input, c->base.wl_display,
 253                                           udev_device_get_devnode(device));
 254         }
 255         udev_enumerate_unref(e);
 256
 257         c->base.input_device = &input->base;
 258 }
 259
 260 static void
 261 drm_compositor_present(struct wlsc_compositor *ec)
 262 {
 263         struct drm_compositor *c = (struct drm_compositor *) ec;
 264         struct drm_output *output;
 265
 266         wl_list_for_each(output, &ec->output_list, base.link) {
 267                 output->current ^= 1;
 268
 269                 glFramebufferRenderbuffer(GL_FRAMEBUFFER,
 270                                           GL_COLOR_ATTACHMENT0,
 271                                           GL_RENDERBUFFER,
 272                                           output->rbo[output->current]);
 273
 274                 drmModePageFlip(c->base.drm.fd, output->crtc_id,
 275                                 output->fb_id[output->current ^ 1],
 276                                 DRM_MODE_PAGE_FLIP_EVENT, output);
 277         }
 278 }
 279
 280 static void
 281 page_flip_handler(int fd, unsigned int frame,
 282                   unsigned int sec, unsigned int usec, void *data)
 283 {
 284         struct wlsc_output *output = data;
 285         struct wlsc_compositor *compositor = output->compositor;
 286         uint32_t msecs;
 287
 288         msecs = sec * 1000 + usec / 1000;
 289         wlsc_compositor_finish_frame(compositor, msecs);
 290 }
 291
 292 static void
 293 on_drm_input(int fd, uint32_t mask, void *data)
 294 {
 295         drmEventContext evctx;
 296
 297         memset(&evctx, 0, sizeof evctx);
 298         evctx.version = DRM_EVENT_CONTEXT_VERSION;
 299         evctx.page_flip_handler = page_flip_handler;
 300         drmHandleEvent(fd, &evctx);
 301 }
 302
 303 static int
 304 init_egl(struct drm_compositor *ec, struct udev_device *device)
 305 {
 306         EGLint major, minor;
 307         const char *extensions, *filename;
 308         int fd;
 309         static const EGLint context_attribs[] = {
 310                 EGL_CONTEXT_CLIENT_VERSION, 2,
 311                 EGL_NONE
 312         };
 313
 314         filename = udev_device_get_devnode(device);
 315         fd = open(filename, O_RDWR);
 316         if (fd < 0) {
 317                 /* Probably permissions error */
 318                 fprintf(stderr, "couldn't open %s, skipping\n",
 319                         udev_device_get_devnode(device));
 320                 return -1;
 321         }
 322
 323         wlsc_drm_init(&ec->base, fd, filename);
 324
 325         ec->base.display = eglGetDRMDisplayMESA(ec->base.drm.fd);
 326         if (ec->base.display == NULL) {
 327                 fprintf(stderr, "failed to create display\n");
 328                 return -1;
 329         }
 330
 331         if (!eglInitialize(ec->base.display, &major, &minor)) {
 332                 fprintf(stderr, "failed to initialize display\n");
 333                 return -1;
 334         }
 335
 336         extensions = eglQueryString(ec->base.display, EGL_EXTENSIONS);
 337         if (!strstr(extensions, "EGL_KHR_surfaceless_opengl")) {
 338                 fprintf(stderr, "EGL_KHR_surfaceless_opengl not available\n");
 339                 return -1;
 340         }
 341
 342         eglBindAPI(EGL_OPENGL_ES_API);
 343         ec->base.context = eglCreateContext(ec->base.display, NULL,
 344                                             EGL_NO_CONTEXT, context_attribs);
 345         if (ec->base.context == NULL) {
 346                 fprintf(stderr, "failed to create context\n");
 347                 return -1;
 348         }
 349
 350         if (!eglMakeCurrent(ec->base.display, EGL_NO_SURFACE,
 351                             EGL_NO_SURFACE, ec->base.context)) {
 352                 fprintf(stderr, "failed to make context current\n");
 353                 return -1;
 354         }
 355
 356         return 0;
 357 }
 358
 359 static drmModeModeInfo builtin_1024x768 = {
 360         63500,                  /* clock */
 361         1024, 1072, 1176, 1328, 0,
 362         768, 771, 775, 798, 0,
 363         59920,
 364         DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC,
 365         0,
 366         "1024x768"
 367 };
 368
 369 static int
 370 create_output_for_connector(struct drm_compositor *ec,
 371                             drmModeRes *resources,
 372                             drmModeConnector *connector)
 373 {
 374         struct drm_output *output;
 375         drmModeEncoder *encoder;
 376         drmModeModeInfo *mode;
 377         int i, ret;
 378         EGLint handle, stride, attribs[] = {
 379                 EGL_WIDTH,              0,
 380                 EGL_HEIGHT,             0,
 381                 EGL_DRM_BUFFER_FORMAT_MESA,     EGL_DRM_BUFFER_FORMAT_ARGB32_MESA,
 382                 EGL_DRM_BUFFER_USE_MESA,        EGL_DRM_BUFFER_USE_SCANOUT_MESA,
 383                 EGL_NONE
 384         };
 385
 386         output = malloc(sizeof *output);
 387         if (output == NULL)
 388                 return -1;
 389
 390         if (connector->count_modes > 0)
 391                 mode = &connector->modes[0];
 392         else
 393                 mode = &builtin_1024x768;
 394
 395         encoder = drmModeGetEncoder(ec->base.drm.fd, connector->encoders[0]);
 396         if (encoder == NULL) {
 397                 fprintf(stderr, "No encoder for connector.\n");
 398                 return -1;
 399         }
 400
 401         for (i = 0; i < resources->count_crtcs; i++) {
 402                 if (encoder->possible_crtcs & (1 << i))
 403                         break;
 404         }
 405         if (i == resources->count_crtcs) {
 406                 fprintf(stderr, "No usable crtc for encoder.\n");
 407                 return -1;
 408         }
 409
 410         memset(output, 0, sizeof *output);
 411         wlsc_output_init(&output->base, &ec->base, 0, 0,
 412                          mode->hdisplay, mode->vdisplay);
 413
 414         output->crtc_id = resources->crtcs[i];
 415         output->connector_id = connector->connector_id;
 416         output->mode = *mode;
 417
 418         drmModeFreeEncoder(encoder);
 419
 420         glGenRenderbuffers(2, output->rbo);
 421         for (i = 0; i < 2; i++) {
 422                 glBindRenderbuffer(GL_RENDERBUFFER, output->rbo[i]);
 423
 424                 attribs[1] = output->base.width;
 425                 attribs[3] = output->base.height;
 426                 output->image[i] =
 427                         eglCreateDRMImageMESA(ec->base.display, attribs);
 428                 glEGLImageTargetRenderbufferStorageOES(GL_RENDERBUFFER,
 429                                                        output->image[i]);
 430                 eglExportDRMImageMESA(ec->base.display, output->image[i],
 431                                       NULL, &handle, &stride);
 432
 433                 ret = drmModeAddFB(ec->base.drm.fd,
 434                                    output->base.width, output->base.height,
 435                                    32, 32, stride, handle, &output->fb_id[i]);
 436                 if (ret) {
 437                         fprintf(stderr, "failed to add fb %d: %m\n", i);
 438                         return -1;
 439                 }
 440         }
 441
 442         output->current = 0;
 443         glFramebufferRenderbuffer(GL_FRAMEBUFFER,
 444                                   GL_COLOR_ATTACHMENT0,
 445                                   GL_RENDERBUFFER,
 446                                   output->rbo[output->current]);
 447         ret = drmModeSetCrtc(ec->base.drm.fd, output->crtc_id,
 448                              output->fb_id[output->current ^ 1], 0, 0,
 449                              &output->connector_id, 1, &output->mode);
 450         if (ret) {
 451                 fprintf(stderr, "failed to set mode: %m\n");
 452                 return -1;
 453         }
 454
 455         wl_list_insert(ec->base.output_list.prev, &output->base.link);
 456
 457         return 0;
 458 }
 459
 460 static int
 461 create_outputs(struct drm_compositor *ec, int option_connector)
 462 {
 463         drmModeConnector *connector;
 464         drmModeRes *resources;
 465         int i;
 466
 467         resources = drmModeGetResources(ec->base.drm.fd);
 468         if (!resources) {
 469                 fprintf(stderr, "drmModeGetResources failed\n");
 470                 return -1;
 471         }
 472
 473         for (i = 0; i < resources->count_connectors; i++) {
 474                 connector = drmModeGetConnector(ec->base.drm.fd, resources->connectors[i]);
 475                 if (connector == NULL)
 476                         continue;
 477
 478                 if (connector->connection == DRM_MODE_CONNECTED &&
 479                     (option_connector == 0 ||
 480                      connector->connector_id == option_connector))
 481                         if (create_output_for_connector(ec, resources, connector) < 0)
 482                                 return -1;
 483
 484                 drmModeFreeConnector(connector);
 485         }
 486
 487         if (wl_list_empty(&ec->base.output_list)) {
 488                 fprintf(stderr, "No currently active connector found.\n");
 489                 return -1;
 490         }
 491
 492         drmModeFreeResources(resources);
 493
 494         return 0;
 495 }
 496
 497 static void on_enter_vt(int signal_number, void *data)
 498 {
 499         struct drm_compositor *ec = data;
 500         struct drm_output *output;
 501         int ret;
 502
 503         ret = drmSetMaster(ec->base.drm.fd);
 504         if (ret) {
 505                 fprintf(stderr, "failed to set drm master\n");
 506                 kill(0, SIGTERM);
 507                 return;
 508         }
 509
 510         fprintf(stderr, "enter vt\n");
 511
 512         ioctl(ec->tty_fd, VT_RELDISP, VT_ACKACQ);
 513         ret = ioctl(ec->tty_fd, KDSETMODE, KD_GRAPHICS);
 514         if (ret)
 515                 fprintf(stderr, "failed to set KD_GRAPHICS mode on console: %m\n");
 516         ec->vt_active = 1;
 517
 518         wl_list_for_each(output, &ec->base.output_list, base.link) {
 519                 ret = drmModeSetCrtc(ec->base.drm.fd, output->crtc_id,
 520                                      output->fb_id[output->current ^ 1], 0, 0,
 521                                      &output->connector_id, 1, &output->mode);
 522                 if (ret)
 523                         fprintf(stderr,
 524                                 "failed to set mode for connector %d: %m\n",
 525                                 output->connector_id);
 526         }
 527 }
 528
 529 static void on_leave_vt(int signal_number, void *data)
 530 {
 531         struct drm_compositor *ec = data;
 532         int ret;
 533
 534         ret = drmDropMaster(ec->base.drm.fd);
 535         if (ret) {
 536                 fprintf(stderr, "failed to drop drm master\n");
 537                 kill(0, SIGTERM);
 538                 return;
 539         }
 540
 541         ioctl (ec->tty_fd, VT_RELDISP, 1);
 542         ret = ioctl(ec->tty_fd, KDSETMODE, KD_TEXT);
 543         if (ret)
 544                 fprintf(stderr, "failed to set KD_TEXT mode on console: %m\n");
 545         ec->vt_active = 0;
 546 }
 547
 548 static void
 549 on_tty_input(int fd, uint32_t mask, void *data)
 550 {
 551         struct drm_compositor *ec = data;
 552
 553         /* Ignore input to tty.  We get keyboard events from evdev
 554          */
 555         tcflush(ec->tty_fd, TCIFLUSH);
 556 }
 557
 558 static void on_term_signal(int signal_number, void *data)
 559 {
 560         struct drm_compositor *ec = data;
 561
 562         if (tcsetattr(ec->tty_fd, TCSANOW, &ec->terminal_attributes) < 0)
 563                 fprintf(stderr, "could not restore terminal to canonical mode\n");
 564
 565         exit(0);
 566 }
 567
 568 static int setup_tty(struct drm_compositor *ec, struct wl_event_loop *loop)
 569 {
 570         struct termios raw_attributes;
 571         struct vt_mode mode = { 0 };
 572         int ret;
 573
 574         ec->tty_fd = open("/dev/tty0", O_RDWR | O_NOCTTY);
 575         if (ec->tty_fd <= 0) {
 576                 fprintf(stderr, "failed to open active tty: %m\n");
 577                 return -1;
 578         }
 579
 580         if (tcgetattr(ec->tty_fd, &ec->terminal_attributes) < 0) {
 581                 fprintf(stderr, "could not get terminal attributes: %m\n");
 582                 return -1;
 583         }
 584
 585         /* Ignore control characters and disable echo */
 586         raw_attributes = ec->terminal_attributes;
 587         cfmakeraw(&raw_attributes);
 588
 589         /* Fix up line endings to be normal (cfmakeraw hoses them) */
 590         raw_attributes.c_oflag |= OPOST | OCRNL;
 591
 592         if (tcsetattr(ec->tty_fd, TCSANOW, &raw_attributes) < 0)
 593                 fprintf(stderr, "could not put terminal into raw mode: %m\n");
 594
 595         ec->term_signal_source =
 596                 wl_event_loop_add_signal(loop, SIGTERM, on_term_signal, ec);
 597
 598         ec->tty_input_source =
 599                 wl_event_loop_add_fd(loop, ec->tty_fd,
 600                                      WL_EVENT_READABLE, on_tty_input, ec);
 601
 602         ret = ioctl(ec->tty_fd, KDSETMODE, KD_GRAPHICS);
 603         if (ret)
 604                 fprintf(stderr, "failed to set KD_GRAPHICS mode on tty: %m\n");
 605
 606         ec->vt_active = 1;
 607         mode.mode = VT_PROCESS;
 608         mode.relsig = SIGUSR1;
 609         mode.acqsig = SIGUSR2;
 610         if (!ioctl(ec->tty_fd, VT_SETMODE, &mode) < 0) {
 611                 fprintf(stderr, "failed to take control of vt handling\n");
 612         }
 613
 614         ec->leave_vt_source =
 615                 wl_event_loop_add_signal(loop, SIGUSR1, on_leave_vt, ec);
 616         ec->enter_vt_source =
 617                 wl_event_loop_add_signal(loop, SIGUSR2, on_enter_vt, ec);
 618
 619         return 0;
 620 }
 621
 622 static int
 623 drm_authenticate(struct wlsc_compositor *c, uint32_t id)
 624 {
 625         struct drm_compositor *ec = (struct drm_compositor *) c;
 626
 627         return drmAuthMagic(ec->base.drm.fd, id);
 628 }
 629
 630 struct wlsc_compositor *
 631 drm_compositor_create(struct wl_display *display, int connector)
 632 {
 633         struct drm_compositor *ec;
 634         struct udev_enumerate *e;
 635         struct udev_list_entry *entry;
 636         struct udev_device *device;
 637         const char *path;
 638         struct wl_event_loop *loop;
 639
 640         ec = malloc(sizeof *ec);
 641         if (ec == NULL)
 642                 return NULL;
 643
 644         memset(ec, 0, sizeof *ec);
 645         ec->udev = udev_new();
 646         if (ec->udev == NULL) {
 647                 fprintf(stderr, "failed to initialize udev context\n");
 648                 return NULL;
 649         }
 650
 651         e = udev_enumerate_new(ec->udev);
 652         udev_enumerate_add_match_subsystem(e, "drm");
 653         udev_enumerate_add_match_property(e, "WAYLAND_SEAT", "1");
 654         udev_enumerate_scan_devices(e);
 655         device = NULL;
 656         udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
 657                 path = udev_list_entry_get_name(entry);
 658                 device = udev_device_new_from_syspath(ec->udev, path);
 659                 break;
 660         }
 661         udev_enumerate_unref(e);
 662
 663         if (device == NULL) {
 664                 fprintf(stderr, "no drm device found\n");
 665                 return NULL;
 666         }
 667
 668         ec->base.wl_display = display;
 669         if (init_egl(ec, device) < 0) {
 670                 fprintf(stderr, "failed to initialize egl\n");
 671                 return NULL;
 672         }
 673
 674         /* Can't init base class until we have a current egl context */
 675         if (wlsc_compositor_init(&ec->base, display) < 0)
 676                 return NULL;
 677
 678         if (create_outputs(ec, connector) < 0) {
 679                 fprintf(stderr, "failed to create output for %s\n", path);
 680                 return NULL;
 681         }
 682
 683         drm_input_create(ec);
 684
 685         loop = wl_display_get_event_loop(ec->base.wl_display);
 686         ec->drm_source =
 687                 wl_event_loop_add_fd(loop, ec->base.drm.fd,
 688                                      WL_EVENT_READABLE, on_drm_input, ec);
 689         setup_tty(ec, loop);
 690         ec->base.authenticate = drm_authenticate;
 691         ec->base.present = drm_compositor_present;
 692         ec->base.focus = 1;
 693
 694         return &ec->base;
 695 }