xwayland-screen.c 21.7 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
/*
 * Copyright © 2011-2014 Intel Corporation
 *
 * Permission to use, copy, modify, distribute, and sell this software
 * and its documentation for any purpose is hereby granted without
 * fee, provided that the above copyright notice appear in all copies
 * and that both that copyright notice and this permission notice
 * appear in supporting documentation, and that the name of the
 * copyright holders not be used in advertising or publicity
 * pertaining to distribution of the software without specific,
 * written prior permission.  The copyright holders make no
 * representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied
 * warranty.
 *
 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE.
 */

#include <xwayland-config.h>

#include <stdio.h>
#include <unistd.h>
#include <errno.h>

32
33
34
35
#ifdef XWL_HAS_GLAMOR
#include <glamor.h>
#endif

36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
#include <X11/Xatom.h>
#include <micmap.h>
#include <misyncshm.h>
#include <os.h>
#include <fb.h>
#include <dixstruct.h>
#include <propertyst.h>
#include <inputstr.h>
#include <xserver_poll.h>

#include "xwayland-cursor.h"
#include "xwayland-screen.h"
#include "xwayland-window.h"
#include "xwayland-input.h"
#include "xwayland-output.h"
#include "xwayland-pixmap.h"
#include "xwayland-present.h"
#include "xwayland-shm.h"

#include "xdg-output-unstable-v1-client-protocol.h"
#include "viewporter-client-protocol.h"
57
#include "xdg-shell-client-protocol.h"
58
59
60
61

static DevPrivateKeyRec xwl_screen_private_key;
static DevPrivateKeyRec xwl_client_private_key;

62
63
#define DEFAULT_DPI 96

64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
_X_NORETURN
static void _X_ATTRIBUTE_PRINTF(1, 2)
xwl_give_up(const char *f, ...)
{
    va_list args;

    va_start(args, f);
    VErrorFSigSafe(f, args);
    va_end(args);

    CloseWellKnownConnections();
    OsCleanup(TRUE);
    fflush(stderr);
    exit(1);
}

struct xwl_client *
xwl_client_get(ClientPtr client)
{
    return dixLookupPrivate(&client->devPrivates, &xwl_client_private_key);
}

struct xwl_screen *
xwl_screen_get(ScreenPtr screen)
{
    return dixLookupPrivate(&screen->devPrivates, &xwl_screen_private_key);
}

Bool
xwl_screen_has_viewport_support(struct xwl_screen *xwl_screen)
{
    return wl_compositor_get_version(xwl_screen->compositor) >=
                            WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION &&
           xwl_screen->viewporter != NULL;
}

Bool
xwl_screen_has_resolution_change_emulation(struct xwl_screen *xwl_screen)
{
    /* Resolution change emulation is only supported in rootless mode and
     * it requires viewport support.
     */
    return xwl_screen->rootless && xwl_screen_has_viewport_support(xwl_screen);
}

/* Return the output @ 0x0, falling back to the first output in the list */
struct xwl_output *
xwl_screen_get_first_output(struct xwl_screen *xwl_screen)
{
    struct xwl_output *xwl_output;

    xorg_list_for_each_entry(xwl_output, &xwl_screen->output_list, link) {
        if (xwl_output->x == 0 && xwl_output->y == 0)
            return xwl_output;
    }

    if (xorg_list_is_empty(&xwl_screen->output_list))
        return NULL;

    return xorg_list_first_entry(&xwl_screen->output_list, struct xwl_output, link);
}

static void
xwl_property_callback(CallbackListPtr *pcbl, void *closure,
                      void *calldata)
{
    ScreenPtr screen = closure;
    PropertyStateRec *rec = calldata;
    struct xwl_screen *xwl_screen;
    struct xwl_window *xwl_window;

    if (rec->win->drawable.pScreen != screen)
        return;

    xwl_window = xwl_window_get(rec->win);
    if (!xwl_window)
        return;

    xwl_screen = xwl_screen_get(screen);

    if (rec->prop->propertyName == xwl_screen->allow_commits_prop)
        xwl_window_update_property(xwl_window, rec);
}

Bool
xwl_close_screen(ScreenPtr screen)
{
    struct xwl_screen *xwl_screen = xwl_screen_get(screen);
    struct xwl_output *xwl_output, *next_xwl_output;
    struct xwl_seat *xwl_seat, *next_xwl_seat;

    DeleteCallback(&PropertyStateCallback, xwl_property_callback, screen);

    xorg_list_for_each_entry_safe(xwl_output, next_xwl_output,
                                  &xwl_screen->output_list, link)
        xwl_output_destroy(xwl_output);

    xorg_list_for_each_entry_safe(xwl_seat, next_xwl_seat,
                                  &xwl_screen->seat_list, link)
        xwl_seat_destroy(xwl_seat);

    xwl_screen_release_tablet_manager(xwl_screen);

    RemoveNotifyFd(xwl_screen->wayland_fd);

    wl_display_disconnect(xwl_screen->display);

    screen->CloseScreen = xwl_screen->CloseScreen;
    free(xwl_screen);

    return screen->CloseScreen(screen);
}

static struct xwl_seat *
xwl_screen_get_default_seat(struct xwl_screen *xwl_screen)
{
    if (xorg_list_is_empty(&xwl_screen->seat_list))
        return NULL;

    return container_of(xwl_screen->seat_list.prev,
                        struct xwl_seat,
                        link);
}

static void
xwl_cursor_warped_to(DeviceIntPtr device,
                     ScreenPtr screen,
                     ClientPtr client,
                     WindowPtr window,
                     SpritePtr sprite,
                     int x, int y)
{
    struct xwl_screen *xwl_screen = xwl_screen_get(screen);
    struct xwl_seat *xwl_seat = device->public.devicePrivate;
    struct xwl_window *xwl_window;
    WindowPtr focus;

    if (!xwl_seat)
        xwl_seat = xwl_screen_get_default_seat(xwl_screen);

    if (!window)
        window = XYToWindow(sprite, x, y);

    xwl_window = xwl_window_from_window(window);
    if (!xwl_window && xwl_seat->focus_window) {
        focus = xwl_seat->focus_window->window;

        /* Warps on non wl_surface backed Windows are only allowed
         * as long as the pointer stays within the focus window.
         */
        if (x >= focus->drawable.x &&
            y >= focus->drawable.y &&
            x < focus->drawable.x + focus->drawable.width &&
            y < focus->drawable.y + focus->drawable.height) {
            if (!window) {
                DebugF("Warp relative to pointer, assuming pointer focus\n");
                xwl_window = xwl_seat->focus_window;
            } else if (window == screen->root) {
                DebugF("Warp on root window, assuming pointer focus\n");
                xwl_window = xwl_seat->focus_window;
            }
        }
    }
    if (!xwl_window)
        return;

    xwl_seat_emulate_pointer_warp(xwl_seat, xwl_window, sprite, x, y);
}

233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
static struct xwl_window *
find_matching_input_output_window(struct xwl_screen *xwl_screen,
                                  WindowPtr window)
{
    struct xwl_window *xwl_window;

    xorg_list_for_each_entry(xwl_window, &xwl_screen->window_list, link_window) {
        /* When confining happens on InputOnly windows, work out the InputOutput
         * window that would be covered by its geometry.
         */
        if (window->drawable.x < xwl_window->window->drawable.x ||
            window->drawable.x + window->drawable.width >
            xwl_window->window->drawable.x + xwl_window->window->drawable.width ||
            window->drawable.y < xwl_window->window->drawable.y ||
            window->drawable.y + window->drawable.height >
            xwl_window->window->drawable.y + xwl_window->window->drawable.height)
            continue;

        if (xwl_window->window->drawable.class == InputOnly)
            continue;

        return xwl_window;
    }

    return NULL;
}

260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
static void
xwl_cursor_confined_to(DeviceIntPtr device,
                       ScreenPtr screen,
                       WindowPtr window)
{
    struct xwl_screen *xwl_screen = xwl_screen_get(screen);
    struct xwl_seat *xwl_seat = device->public.devicePrivate;
    struct xwl_window *xwl_window;

    if (!xwl_seat)
        xwl_seat = xwl_screen_get_default_seat(xwl_screen);

    /* xwl_seat hasn't been setup yet, don't do anything just yet */
    if (!xwl_seat)
        return;

    if (window == screen->root) {
        xwl_seat_unconfine_pointer(xwl_seat);
        return;
    }

    xwl_window = xwl_window_from_window(window);
282
283
284
    if (!xwl_window && window->drawable.class == InputOnly) {
        DebugF("Confine on InputOnly window, finding matching toplevel\n");
        xwl_window = find_matching_input_output_window(xwl_screen, window);
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
    }
    if (!xwl_window)
        return;

    xwl_seat_confine_pointer(xwl_seat, xwl_window);
}

void
xwl_screen_check_resolution_change_emulation(struct xwl_screen *xwl_screen)
{
    struct xwl_window *xwl_window;

    xorg_list_for_each_entry(xwl_window, &xwl_screen->window_list, link_window)
        xwl_window_check_resolution_change_emulation(xwl_window);
}

static void
xwl_screen_post_damage(struct xwl_screen *xwl_screen)
{
    struct xwl_window *xwl_window, *next_xwl_window;
305
306
307
    struct xorg_list commit_window_list;

    xorg_list_init(&commit_window_list);
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324

    xorg_list_for_each_entry_safe(xwl_window, next_xwl_window,
                                  &xwl_screen->damage_window_list, link_damage) {
        /* If we're waiting on a frame callback from the server,
         * don't attach a new buffer. */
        if (xwl_window->frame_callback)
            continue;

        if (!xwl_window->allow_commits)
            continue;

#ifdef XWL_HAS_GLAMOR
        if (xwl_screen->glamor && !xwl_glamor_allow_commits(xwl_window))
            continue;
#endif

        xwl_window_post_damage(xwl_window);
325
326
327
328
329
330
331
        xorg_list_del(&xwl_window->link_damage);
        xorg_list_append(&xwl_window->link_damage, &commit_window_list);
    }

    if (xorg_list_is_empty(&commit_window_list))
        return;

332
333
334
335
336
337
338
#ifdef XWL_HAS_GLAMOR
    if (xwl_screen->glamor &&
        xwl_screen->egl_backend == &xwl_screen->gbm_backend) {
        glamor_block_handler(xwl_screen->screen);
    }
#endif

339
340
341
342
    xorg_list_for_each_entry_safe(xwl_window, next_xwl_window,
                                  &commit_window_list, link_damage) {
        wl_surface_commit(xwl_window->surface);
        xorg_list_del(&xwl_window->link_damage);
343
344
345
    }
}

346
347
348
349
350
351
352
353
354
355
356
static void
xdg_wm_base_ping(void *data, struct xdg_wm_base *xdg_wm_base,
                 uint32_t serial)
{
    xdg_wm_base_pong(xdg_wm_base, serial);
}

static const struct xdg_wm_base_listener xdg_wm_base_listener = {
    xdg_wm_base_ping,
};

357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
static void
registry_global(void *data, struct wl_registry *registry, uint32_t id,
                const char *interface, uint32_t version)
{
    struct xwl_screen *xwl_screen = data;

    if (strcmp(interface, "wl_compositor") == 0) {
        uint32_t request_version = 1;

        if (version >= WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION)
            request_version = WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION;

        xwl_screen->compositor =
            wl_registry_bind(registry, id, &wl_compositor_interface, request_version);
    }
    else if (strcmp(interface, "wl_shm") == 0) {
        xwl_screen->shm = wl_registry_bind(registry, id, &wl_shm_interface, 1);
    }
375
376
377
378
379
380
    else if (strcmp(interface, "xdg_wm_base") == 0) {
        xwl_screen->xdg_wm_base =
            wl_registry_bind(registry, id, &xdg_wm_base_interface, 1);
        xdg_wm_base_add_listener(xwl_screen->xdg_wm_base,
                                 &xdg_wm_base_listener,
                                 NULL);
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
    }
    else if (strcmp(interface, "wl_output") == 0 && version >= 2) {
        if (xwl_output_create(xwl_screen, id))
            xwl_screen->expecting_event++;
    }
    else if (strcmp(interface, "zxdg_output_manager_v1") == 0) {
        /* We support xdg-output from version 1 to version 3 */
        version = min(version, 3);
        xwl_screen->xdg_output_manager =
            wl_registry_bind(registry, id, &zxdg_output_manager_v1_interface, version);
        xwl_screen_init_xdg_output(xwl_screen);
    }
    else if (strcmp(interface, "wp_viewporter") == 0) {
        xwl_screen->viewporter = wl_registry_bind(registry, id, &wp_viewporter_interface, 1);
    }
#ifdef XWL_HAS_GLAMOR
    else if (xwl_screen->glamor) {
        xwl_glamor_init_wl_registry(xwl_screen, registry, id, interface,
                                    version);
    }
#endif
}

static void
global_remove(void *data, struct wl_registry *registry, uint32_t name)
{
    struct xwl_screen *xwl_screen = data;
    struct xwl_output *xwl_output, *tmp_xwl_output;

    xorg_list_for_each_entry_safe(xwl_output, tmp_xwl_output,
                                  &xwl_screen->output_list, link) {
        if (xwl_output->server_output_id == name) {
            xwl_output_remove(xwl_output);
            break;
        }
    }
}

static const struct wl_registry_listener registry_listener = {
    registry_global,
    global_remove
};

static void
xwl_read_events (struct xwl_screen *xwl_screen)
{
    int ret;

    if (xwl_screen->wait_flush)
        return;

    ret = wl_display_read_events(xwl_screen->display);
    if (ret == -1)
        xwl_give_up("failed to read Wayland events: %s\n", strerror(errno));

    xwl_screen->prepare_read = 0;

    ret = wl_display_dispatch_pending(xwl_screen->display);
    if (ret == -1)
        xwl_give_up("failed to dispatch Wayland events: %s\n", strerror(errno));
}

static int
xwl_display_pollout (struct xwl_screen *xwl_screen, int timeout)
{
    struct pollfd poll_fd;

    poll_fd.fd = wl_display_get_fd(xwl_screen->display);
    poll_fd.events = POLLOUT;

    return xserver_poll(&poll_fd, 1, timeout);
}

static void
xwl_dispatch_events (struct xwl_screen *xwl_screen)
{
    int ret = 0;
    int ready;

    if (xwl_screen->wait_flush)
        goto pollout;

    while (xwl_screen->prepare_read == 0 &&
           wl_display_prepare_read(xwl_screen->display) == -1) {
        ret = wl_display_dispatch_pending(xwl_screen->display);
        if (ret == -1)
            xwl_give_up("failed to dispatch Wayland events: %s\n",
                       strerror(errno));
    }

    xwl_screen->prepare_read = 1;

pollout:
    ready = xwl_display_pollout(xwl_screen, 5);
    if (ready == -1 && errno != EINTR)
        xwl_give_up("error polling on XWayland fd: %s\n", strerror(errno));

    if (ready > 0)
        ret = wl_display_flush(xwl_screen->display);

    if (ret == -1 && errno != EAGAIN)
        xwl_give_up("failed to write to XWayland fd: %s\n", strerror(errno));

    xwl_screen->wait_flush = (ready == 0 || ready == -1 || ret == -1);
}

static void
socket_handler(int fd, int ready, void *data)
{
    struct xwl_screen *xwl_screen = data;

    xwl_read_events (xwl_screen);
}

static void
wakeup_handler(void *data, int err)
{
}

static void
block_handler(void *data, void *timeout)
{
    struct xwl_screen *xwl_screen = data;

    xwl_screen_post_damage(xwl_screen);
    xwl_dispatch_events (xwl_screen);
}

void
xwl_sync_events (struct xwl_screen *xwl_screen)
{
    xwl_dispatch_events (xwl_screen);
    xwl_read_events (xwl_screen);
}

516
517
518
519
520
521
522
523
524
525
void xwl_surface_damage(struct xwl_screen *xwl_screen,
                        struct wl_surface *surface,
                        int32_t x, int32_t y, int32_t width, int32_t height)
{
    if (wl_surface_get_version(surface) >= WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION)
        wl_surface_damage_buffer(surface, x, y, width, height);
    else
        wl_surface_damage(surface, x, y, width, height);
}

526
527
528
529
530
531
532
533
534
535
536
537
538
void
xwl_screen_roundtrip(struct xwl_screen *xwl_screen)
{
    int ret;

    ret = wl_display_roundtrip(xwl_screen->display);
    while (ret >= 0 && xwl_screen->expecting_event)
        ret = wl_display_roundtrip(xwl_screen->display);

    if (ret < 0)
        xwl_give_up("could not connect to wayland server\n");
}

539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
Bool
xwl_screen_init(ScreenPtr pScreen, int argc, char **argv)
{
    static const char allow_commits[] = "_XWAYLAND_ALLOW_COMMITS";
    struct xwl_screen *xwl_screen;
    Pixel red_mask, blue_mask, green_mask;
    int ret, bpc, green_bpc, i;
#ifdef XWL_HAS_GLAMOR
    Bool use_eglstreams = FALSE;
#endif

    xwl_screen = calloc(1, sizeof *xwl_screen);
    if (xwl_screen == NULL)
        return FALSE;

    if (!dixRegisterPrivateKey(&xwl_screen_private_key, PRIVATE_SCREEN, 0))
        return FALSE;
    if (!xwl_pixmap_init())
        return FALSE;
    if (!xwl_window_init())
        return FALSE;
    /* There are no easy to use new / delete client hooks, we could use a
     * ClientStateCallback, but it is easier to let the dix code manage the
     * memory for us. This will zero fill the initial xwl_client data.
     */
    if (!dixRegisterPrivateKey(&xwl_client_private_key, PRIVATE_CLIENT,
                               sizeof(struct xwl_client)))
        return FALSE;

    dixSetPrivate(&pScreen->devPrivates, &xwl_screen_private_key, xwl_screen);
    xwl_screen->screen = pScreen;

#ifdef XWL_HAS_GLAMOR
    xwl_screen->glamor = 1;
#endif

    for (i = 1; i < argc; i++) {
        if (strcmp(argv[i], "-rootless") == 0) {
            xwl_screen->rootless = 1;
        }
        else if (strcmp(argv[i], "-shm") == 0) {
            xwl_screen->glamor = 0;
        }
        else if (strcmp(argv[i], "-eglstream") == 0) {
#ifdef XWL_HAS_EGLSTREAM
            use_eglstreams = TRUE;
#else
            ErrorF("xwayland glamor: this build does not have EGLStream support\n");
#endif
        }
    }

#ifdef XWL_HAS_GLAMOR
    if (xwl_screen->glamor)
        xwl_glamor_init_backends(xwl_screen, use_eglstreams);
#endif

    /* In rootless mode, we don't have any screen storage, and the only
     * rendering should be to redirected mode. */
    if (xwl_screen->rootless)
        xwl_screen->root_clip_mode = ROOT_CLIP_INPUT_ONLY;
    else
        xwl_screen->root_clip_mode = ROOT_CLIP_FULL;

    xorg_list_init(&xwl_screen->output_list);
    xorg_list_init(&xwl_screen->seat_list);
    xorg_list_init(&xwl_screen->damage_window_list);
    xorg_list_init(&xwl_screen->window_list);
    xwl_screen->depth = 24;

609
610
611
    if (!monitorResolution)
        monitorResolution = DEFAULT_DPI;

612
613
614
615
616
617
618
619
620
621
622
623
624
    xwl_screen->display = wl_display_connect(NULL);
    if (xwl_screen->display == NULL) {
        ErrorF("could not connect to wayland server\n");
        return FALSE;
    }

    if (!xwl_screen_init_output(xwl_screen))
        return FALSE;

    xwl_screen->expecting_event = 0;
    xwl_screen->registry = wl_display_get_registry(xwl_screen->display);
    wl_registry_add_listener(xwl_screen->registry,
                             &registry_listener, xwl_screen);
625
    xwl_screen_roundtrip(xwl_screen);
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641

    bpc = xwl_screen->depth / 3;
    green_bpc = xwl_screen->depth - 2 * bpc;
    blue_mask = (1 << bpc) - 1;
    green_mask = ((1 << green_bpc) - 1) << bpc;
    red_mask = blue_mask << (green_bpc + bpc);

    miSetVisualTypesAndMasks(xwl_screen->depth,
                             ((1 << TrueColor) | (1 << DirectColor)),
                             green_bpc, TrueColor,
                             red_mask, green_mask, blue_mask);

    miSetPixmapDepths();

    ret = fbScreenInit(pScreen, NULL,
                       xwl_screen->width, xwl_screen->height,
642
                       monitorResolution, monitorResolution, 0,
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
                       BitsPerPixel(xwl_screen->depth));
    if (!ret)
        return FALSE;

    fbPictureInit(pScreen, 0, 0);

#ifdef HAVE_XSHMFENCE
    if (!miSyncShmScreenInit(pScreen))
        return FALSE;
#endif

    xwl_screen->wayland_fd = wl_display_get_fd(xwl_screen->display);
    SetNotifyFd(xwl_screen->wayland_fd, socket_handler, X_NOTIFY_READ, xwl_screen);
    RegisterBlockAndWakeupHandlers(block_handler, wakeup_handler, xwl_screen);

    pScreen->blackPixel = 0;
    pScreen->whitePixel = 1;

    ret = fbCreateDefColormap(pScreen);

    if (!xwl_screen_init_cursor(xwl_screen))
        return FALSE;

#ifdef XWL_HAS_GLAMOR
    if (xwl_screen->glamor) {
        xwl_glamor_select_backend(xwl_screen, use_eglstreams);

        if (xwl_screen->egl_backend == NULL || !xwl_glamor_init(xwl_screen)) {
           ErrorF("Failed to initialize glamor, falling back to sw\n");
           xwl_screen->glamor = 0;
        }
    }

    if (xwl_screen->glamor && xwl_screen->rootless)
        xwl_screen->present = xwl_present_init(pScreen);
#endif

    if (!xwl_screen->glamor) {
        xwl_screen->CreateScreenResources = pScreen->CreateScreenResources;
        pScreen->CreateScreenResources = xwl_shm_create_screen_resources;
        pScreen->CreatePixmap = xwl_shm_create_pixmap;
        pScreen->DestroyPixmap = xwl_shm_destroy_pixmap;
    }

    xwl_screen->RealizeWindow = pScreen->RealizeWindow;
    pScreen->RealizeWindow = xwl_realize_window;

    xwl_screen->UnrealizeWindow = pScreen->UnrealizeWindow;
    pScreen->UnrealizeWindow = xwl_unrealize_window;

    xwl_screen->DestroyWindow = pScreen->DestroyWindow;
    pScreen->DestroyWindow = xwl_destroy_window;

    xwl_screen->CloseScreen = pScreen->CloseScreen;
    pScreen->CloseScreen = xwl_close_screen;

699
700
701
    xwl_screen->ChangeWindowAttributes = pScreen->ChangeWindowAttributes;
    pScreen->ChangeWindowAttributes = xwl_change_window_attributes;

702
703
704
    xwl_screen->ResizeWindow = pScreen->ResizeWindow;
    pScreen->ResizeWindow = xwl_resize_window;

705
706
707
    xwl_screen->MoveWindow = pScreen->MoveWindow;
    pScreen->MoveWindow = xwl_move_window;

708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
    if (xwl_screen->rootless) {
        xwl_screen->SetWindowPixmap = pScreen->SetWindowPixmap;
        pScreen->SetWindowPixmap = xwl_window_set_window_pixmap;
    }

    pScreen->CursorWarpedTo = xwl_cursor_warped_to;
    pScreen->CursorConfinedTo = xwl_cursor_confined_to;

    xwl_screen->allow_commits_prop = MakeAtom(allow_commits,
                                              strlen(allow_commits),
                                              TRUE);
    if (xwl_screen->allow_commits_prop == BAD_RESOURCE)
        return FALSE;

    AddCallback(&PropertyStateCallback, xwl_property_callback, pScreen);

724
    xwl_screen_roundtrip(xwl_screen);
725
726
727

    return ret;
}