1 /*
2 * Copyright © 2015 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #include <X11/Xlib-xcb.h>
25 #include <X11/xshmfence.h>
26 #include <xcb/xcb.h>
27 #include <xcb/dri3.h>
28 #include <xcb/present.h>
29 #include <xcb/shm.h>
30
31 #include "util/macros.h"
32 #include <stdatomic.h>
33 #include <stdlib.h>
34 #include <stdio.h>
35 #include <unistd.h>
36 #include <errno.h>
37 #include <string.h>
38 #include <fcntl.h>
39 #include <poll.h>
40 #include <xf86drm.h>
41 #include "drm-uapi/drm_fourcc.h"
42 #include "util/hash_table.h"
43 #include "util/os_file.h"
44 #include "util/os_time.h"
45 #include "util/u_debug.h"
46 #include "util/u_thread.h"
47 #include "util/xmlconfig.h"
48
49 #include "vk_instance.h"
50 #include "vk_physical_device.h"
51 #include "vk_util.h"
52 #include "vk_enum_to_str.h"
53 #include "wsi_common_entrypoints.h"
54 #include "wsi_common_private.h"
55 #include "wsi_common_queue.h"
56
57 #ifdef HAVE_SYS_SHM_H
58 #include <sys/ipc.h>
59 #include <sys/shm.h>
60 #endif
61
62 struct wsi_x11_connection {
63 bool has_dri3;
64 bool has_dri3_modifiers;
65 bool has_present;
66 bool is_proprietary_x11;
67 bool is_xwayland;
68 bool has_mit_shm;
69 bool has_xfixes;
70 };
71
72 struct wsi_x11 {
73 struct wsi_interface base;
74
75 pthread_mutex_t mutex;
76 /* Hash table of xcb_connection -> wsi_x11_connection mappings */
77 struct hash_table *connections;
78 };
79
80
81 /**
82 * Wrapper around xcb_dri3_open. Returns the opened fd or -1 on error.
83 */
84 static int
wsi_dri3_open(xcb_connection_t * conn,xcb_window_t root,uint32_t provider)85 wsi_dri3_open(xcb_connection_t *conn,
86 xcb_window_t root,
87 uint32_t provider)
88 {
89 xcb_dri3_open_cookie_t cookie;
90 xcb_dri3_open_reply_t *reply;
91 int fd;
92
93 cookie = xcb_dri3_open(conn,
94 root,
95 provider);
96
97 reply = xcb_dri3_open_reply(conn, cookie, NULL);
98 if (!reply)
99 return -1;
100
101 /* According to DRI3 extension nfd must equal one. */
102 if (reply->nfd != 1) {
103 free(reply);
104 return -1;
105 }
106
107 fd = xcb_dri3_open_reply_fds(conn, reply)[0];
108 free(reply);
109 fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC);
110
111 return fd;
112 }
113
114 /**
115 * Checks compatibility of the device wsi_dev with the device the X server
116 * provides via DRI3.
117 *
118 * This returns true when no device could be retrieved from the X server or when
119 * the information for the X server device indicate that it is the same device.
120 */
121 static bool
wsi_x11_check_dri3_compatible(const struct wsi_device * wsi_dev,xcb_connection_t * conn)122 wsi_x11_check_dri3_compatible(const struct wsi_device *wsi_dev,
123 xcb_connection_t *conn)
124 {
125 xcb_screen_iterator_t screen_iter =
126 xcb_setup_roots_iterator(xcb_get_setup(conn));
127 xcb_screen_t *screen = screen_iter.data;
128
129 /* Open the DRI3 device from the X server. If we do not retrieve one we
130 * assume our local device is compatible.
131 */
132 int dri3_fd = wsi_dri3_open(conn, screen->root, None);
133 if (dri3_fd == -1)
134 return true;
135
136 bool match = wsi_device_matches_drm_fd(wsi_dev, dri3_fd);
137
138 close(dri3_fd);
139
140 return match;
141 }
142
143 static bool
wsi_x11_detect_xwayland(xcb_connection_t * conn)144 wsi_x11_detect_xwayland(xcb_connection_t *conn)
145 {
146 xcb_randr_query_version_cookie_t ver_cookie =
147 xcb_randr_query_version_unchecked(conn, 1, 3);
148 xcb_randr_query_version_reply_t *ver_reply =
149 xcb_randr_query_version_reply(conn, ver_cookie, NULL);
150 bool has_randr_v1_3 = ver_reply && (ver_reply->major_version > 1 ||
151 ver_reply->minor_version >= 3);
152 free(ver_reply);
153
154 if (!has_randr_v1_3)
155 return false;
156
157 const xcb_setup_t *setup = xcb_get_setup(conn);
158 xcb_screen_iterator_t iter = xcb_setup_roots_iterator(setup);
159
160 xcb_randr_get_screen_resources_current_cookie_t gsr_cookie =
161 xcb_randr_get_screen_resources_current_unchecked(conn, iter.data->root);
162 xcb_randr_get_screen_resources_current_reply_t *gsr_reply =
163 xcb_randr_get_screen_resources_current_reply(conn, gsr_cookie, NULL);
164
165 if (!gsr_reply || gsr_reply->num_outputs == 0) {
166 free(gsr_reply);
167 return false;
168 }
169
170 xcb_randr_output_t *randr_outputs =
171 xcb_randr_get_screen_resources_current_outputs(gsr_reply);
172 xcb_randr_get_output_info_cookie_t goi_cookie =
173 xcb_randr_get_output_info(conn, randr_outputs[0], gsr_reply->config_timestamp);
174 free(gsr_reply);
175
176 xcb_randr_get_output_info_reply_t *goi_reply =
177 xcb_randr_get_output_info_reply(conn, goi_cookie, NULL);
178 if (!goi_reply) {
179 return false;
180 }
181
182 char *output_name = (char*)xcb_randr_get_output_info_name(goi_reply);
183 bool is_xwayland = output_name && strncmp(output_name, "XWAYLAND", 8) == 0;
184 free(goi_reply);
185
186 return is_xwayland;
187 }
188
189 static struct wsi_x11_connection *
wsi_x11_connection_create(struct wsi_device * wsi_dev,xcb_connection_t * conn)190 wsi_x11_connection_create(struct wsi_device *wsi_dev,
191 xcb_connection_t *conn)
192 {
193 xcb_query_extension_cookie_t dri3_cookie, pres_cookie, randr_cookie,
194 amd_cookie, nv_cookie, shm_cookie, sync_cookie,
195 xfixes_cookie;
196 xcb_query_extension_reply_t *dri3_reply, *pres_reply, *randr_reply,
197 *amd_reply, *nv_reply, *shm_reply = NULL,
198 *xfixes_reply;
199 bool wants_shm = wsi_dev->sw && !(WSI_DEBUG & WSI_DEBUG_NOSHM) &&
200 wsi_dev->has_import_memory_host;
201 bool has_dri3_v1_2 = false;
202 bool has_present_v1_2 = false;
203
204 struct wsi_x11_connection *wsi_conn =
205 vk_alloc(&wsi_dev->instance_alloc, sizeof(*wsi_conn), 8,
206 VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
207 if (!wsi_conn)
208 return NULL;
209
210 sync_cookie = xcb_query_extension(conn, 4, "SYNC");
211 dri3_cookie = xcb_query_extension(conn, 4, "DRI3");
212 pres_cookie = xcb_query_extension(conn, 7, "Present");
213 randr_cookie = xcb_query_extension(conn, 5, "RANDR");
214 xfixes_cookie = xcb_query_extension(conn, 6, "XFIXES");
215
216 if (wants_shm)
217 shm_cookie = xcb_query_extension(conn, 7, "MIT-SHM");
218
219 /* We try to be nice to users and emit a warning if they try to use a
220 * Vulkan application on a system without DRI3 enabled. However, this ends
221 * up spewing the warning when a user has, for example, both Intel
222 * integrated graphics and a discrete card with proprietary drivers and are
223 * running on the discrete card with the proprietary DDX. In this case, we
224 * really don't want to print the warning because it just confuses users.
225 * As a heuristic to detect this case, we check for a couple of proprietary
226 * X11 extensions.
227 */
228 amd_cookie = xcb_query_extension(conn, 11, "ATIFGLRXDRI");
229 nv_cookie = xcb_query_extension(conn, 10, "NV-CONTROL");
230
231 xcb_discard_reply(conn, sync_cookie.sequence);
232 dri3_reply = xcb_query_extension_reply(conn, dri3_cookie, NULL);
233 pres_reply = xcb_query_extension_reply(conn, pres_cookie, NULL);
234 randr_reply = xcb_query_extension_reply(conn, randr_cookie, NULL);
235 amd_reply = xcb_query_extension_reply(conn, amd_cookie, NULL);
236 nv_reply = xcb_query_extension_reply(conn, nv_cookie, NULL);
237 xfixes_reply = xcb_query_extension_reply(conn, xfixes_cookie, NULL);
238 if (wants_shm)
239 shm_reply = xcb_query_extension_reply(conn, shm_cookie, NULL);
240 if (!dri3_reply || !pres_reply || !xfixes_reply) {
241 free(dri3_reply);
242 free(pres_reply);
243 free(xfixes_reply);
244 free(randr_reply);
245 free(amd_reply);
246 free(nv_reply);
247 if (wants_shm)
248 free(shm_reply);
249 vk_free(&wsi_dev->instance_alloc, wsi_conn);
250 return NULL;
251 }
252
253 wsi_conn->has_dri3 = dri3_reply->present != 0;
254 #ifdef HAVE_DRI3_MODIFIERS
255 if (wsi_conn->has_dri3) {
256 xcb_dri3_query_version_cookie_t ver_cookie;
257 xcb_dri3_query_version_reply_t *ver_reply;
258
259 ver_cookie = xcb_dri3_query_version(conn, 1, 2);
260 ver_reply = xcb_dri3_query_version_reply(conn, ver_cookie, NULL);
261 has_dri3_v1_2 = ver_reply != NULL &&
262 (ver_reply->major_version > 1 || ver_reply->minor_version >= 2);
263 free(ver_reply);
264 }
265 #endif
266
267 wsi_conn->has_present = pres_reply->present != 0;
268 #ifdef HAVE_DRI3_MODIFIERS
269 if (wsi_conn->has_present) {
270 xcb_present_query_version_cookie_t ver_cookie;
271 xcb_present_query_version_reply_t *ver_reply;
272
273 ver_cookie = xcb_present_query_version(conn, 1, 2);
274 ver_reply = xcb_present_query_version_reply(conn, ver_cookie, NULL);
275 has_present_v1_2 =
276 (ver_reply->major_version > 1 || ver_reply->minor_version >= 2);
277 free(ver_reply);
278 }
279 #endif
280
281 wsi_conn->has_xfixes = xfixes_reply->present != 0;
282 if (wsi_conn->has_xfixes) {
283 xcb_xfixes_query_version_cookie_t ver_cookie;
284 xcb_xfixes_query_version_reply_t *ver_reply;
285
286 ver_cookie = xcb_xfixes_query_version(conn, 6, 0);
287 ver_reply = xcb_xfixes_query_version_reply(conn, ver_cookie, NULL);
288 wsi_conn->has_xfixes = (ver_reply->major_version >= 2);
289 free(ver_reply);
290 }
291
292 if (randr_reply && randr_reply->present != 0)
293 wsi_conn->is_xwayland = wsi_x11_detect_xwayland(conn);
294 else
295 wsi_conn->is_xwayland = false;
296
297 wsi_conn->has_dri3_modifiers = has_dri3_v1_2 && has_present_v1_2;
298 wsi_conn->is_proprietary_x11 = false;
299 if (amd_reply && amd_reply->present)
300 wsi_conn->is_proprietary_x11 = true;
301 if (nv_reply && nv_reply->present)
302 wsi_conn->is_proprietary_x11 = true;
303
304 wsi_conn->has_mit_shm = false;
305 if (wsi_conn->has_dri3 && wsi_conn->has_present && wants_shm) {
306 bool has_mit_shm = shm_reply->present != 0;
307
308 xcb_shm_query_version_cookie_t ver_cookie;
309 xcb_shm_query_version_reply_t *ver_reply;
310
311 ver_cookie = xcb_shm_query_version(conn);
312 ver_reply = xcb_shm_query_version_reply(conn, ver_cookie, NULL);
313
314 has_mit_shm = ver_reply->shared_pixmaps;
315 free(ver_reply);
316 xcb_void_cookie_t cookie;
317 xcb_generic_error_t *error;
318
319 if (has_mit_shm) {
320 cookie = xcb_shm_detach_checked(conn, 0);
321 if ((error = xcb_request_check(conn, cookie))) {
322 if (error->error_code != BadRequest)
323 wsi_conn->has_mit_shm = true;
324 free(error);
325 }
326 }
327 }
328
329 free(dri3_reply);
330 free(pres_reply);
331 free(randr_reply);
332 free(amd_reply);
333 free(nv_reply);
334 free(xfixes_reply);
335 if (wants_shm)
336 free(shm_reply);
337
338 return wsi_conn;
339 }
340
341 static void
wsi_x11_connection_destroy(struct wsi_device * wsi_dev,struct wsi_x11_connection * conn)342 wsi_x11_connection_destroy(struct wsi_device *wsi_dev,
343 struct wsi_x11_connection *conn)
344 {
345 vk_free(&wsi_dev->instance_alloc, conn);
346 }
347
348 static bool
wsi_x11_check_for_dri3(struct wsi_x11_connection * wsi_conn)349 wsi_x11_check_for_dri3(struct wsi_x11_connection *wsi_conn)
350 {
351 if (wsi_conn->has_dri3)
352 return true;
353 if (!wsi_conn->is_proprietary_x11) {
354 fprintf(stderr, "vulkan: No DRI3 support detected - required for presentation\n"
355 "Note: you can probably enable DRI3 in your Xorg config\n");
356 }
357 return false;
358 }
359
360 /**
361 * Get internal struct representing an xcb_connection_t.
362 *
363 * This can allocate the struct but the caller does not own the struct. It is
364 * deleted on wsi_x11_finish_wsi by the hash table it is inserted.
365 *
366 * If the allocation fails NULL is returned.
367 */
368 static struct wsi_x11_connection *
wsi_x11_get_connection(struct wsi_device * wsi_dev,xcb_connection_t * conn)369 wsi_x11_get_connection(struct wsi_device *wsi_dev,
370 xcb_connection_t *conn)
371 {
372 struct wsi_x11 *wsi =
373 (struct wsi_x11 *)wsi_dev->wsi[VK_ICD_WSI_PLATFORM_XCB];
374
375 pthread_mutex_lock(&wsi->mutex);
376
377 struct hash_entry *entry = _mesa_hash_table_search(wsi->connections, conn);
378 if (!entry) {
379 /* We're about to make a bunch of blocking calls. Let's drop the
380 * mutex for now so we don't block up too badly.
381 */
382 pthread_mutex_unlock(&wsi->mutex);
383
384 struct wsi_x11_connection *wsi_conn =
385 wsi_x11_connection_create(wsi_dev, conn);
386 if (!wsi_conn)
387 return NULL;
388
389 pthread_mutex_lock(&wsi->mutex);
390
391 entry = _mesa_hash_table_search(wsi->connections, conn);
392 if (entry) {
393 /* Oops, someone raced us to it */
394 wsi_x11_connection_destroy(wsi_dev, wsi_conn);
395 } else {
396 entry = _mesa_hash_table_insert(wsi->connections, conn, wsi_conn);
397 }
398 }
399
400 pthread_mutex_unlock(&wsi->mutex);
401
402 return entry->data;
403 }
404
405 struct surface_format {
406 VkFormat format;
407 unsigned bits_per_rgb;
408 };
409
410 static const struct surface_format formats[] = {
411 { VK_FORMAT_B8G8R8A8_SRGB, 8 },
412 { VK_FORMAT_B8G8R8A8_UNORM, 8 },
413 { VK_FORMAT_A2R10G10B10_UNORM_PACK32, 10 },
414 };
415
416 static const VkPresentModeKHR present_modes[] = {
417 VK_PRESENT_MODE_IMMEDIATE_KHR,
418 VK_PRESENT_MODE_MAILBOX_KHR,
419 VK_PRESENT_MODE_FIFO_KHR,
420 VK_PRESENT_MODE_FIFO_RELAXED_KHR,
421 };
422
423 static xcb_screen_t *
get_screen_for_root(xcb_connection_t * conn,xcb_window_t root)424 get_screen_for_root(xcb_connection_t *conn, xcb_window_t root)
425 {
426 xcb_screen_iterator_t screen_iter =
427 xcb_setup_roots_iterator(xcb_get_setup(conn));
428
429 for (; screen_iter.rem; xcb_screen_next (&screen_iter)) {
430 if (screen_iter.data->root == root)
431 return screen_iter.data;
432 }
433
434 return NULL;
435 }
436
437 static xcb_visualtype_t *
screen_get_visualtype(xcb_screen_t * screen,xcb_visualid_t visual_id,unsigned * depth)438 screen_get_visualtype(xcb_screen_t *screen, xcb_visualid_t visual_id,
439 unsigned *depth)
440 {
441 xcb_depth_iterator_t depth_iter =
442 xcb_screen_allowed_depths_iterator(screen);
443
444 for (; depth_iter.rem; xcb_depth_next (&depth_iter)) {
445 xcb_visualtype_iterator_t visual_iter =
446 xcb_depth_visuals_iterator (depth_iter.data);
447
448 for (; visual_iter.rem; xcb_visualtype_next (&visual_iter)) {
449 if (visual_iter.data->visual_id == visual_id) {
450 if (depth)
451 *depth = depth_iter.data->depth;
452 return visual_iter.data;
453 }
454 }
455 }
456
457 return NULL;
458 }
459
460 static xcb_visualtype_t *
connection_get_visualtype(xcb_connection_t * conn,xcb_visualid_t visual_id)461 connection_get_visualtype(xcb_connection_t *conn, xcb_visualid_t visual_id)
462 {
463 xcb_screen_iterator_t screen_iter =
464 xcb_setup_roots_iterator(xcb_get_setup(conn));
465
466 /* For this we have to iterate over all of the screens which is rather
467 * annoying. Fortunately, there is probably only 1.
468 */
469 for (; screen_iter.rem; xcb_screen_next (&screen_iter)) {
470 xcb_visualtype_t *visual = screen_get_visualtype(screen_iter.data,
471 visual_id, NULL);
472 if (visual)
473 return visual;
474 }
475
476 return NULL;
477 }
478
479 static xcb_visualtype_t *
get_visualtype_for_window(xcb_connection_t * conn,xcb_window_t window,unsigned * depth)480 get_visualtype_for_window(xcb_connection_t *conn, xcb_window_t window,
481 unsigned *depth)
482 {
483 xcb_query_tree_cookie_t tree_cookie;
484 xcb_get_window_attributes_cookie_t attrib_cookie;
485 xcb_query_tree_reply_t *tree;
486 xcb_get_window_attributes_reply_t *attrib;
487
488 tree_cookie = xcb_query_tree(conn, window);
489 attrib_cookie = xcb_get_window_attributes(conn, window);
490
491 tree = xcb_query_tree_reply(conn, tree_cookie, NULL);
492 attrib = xcb_get_window_attributes_reply(conn, attrib_cookie, NULL);
493 if (attrib == NULL || tree == NULL) {
494 free(attrib);
495 free(tree);
496 return NULL;
497 }
498
499 xcb_window_t root = tree->root;
500 xcb_visualid_t visual_id = attrib->visual;
501 free(attrib);
502 free(tree);
503
504 xcb_screen_t *screen = get_screen_for_root(conn, root);
505 if (screen == NULL)
506 return NULL;
507
508 return screen_get_visualtype(screen, visual_id, depth);
509 }
510
511 static bool
visual_has_alpha(xcb_visualtype_t * visual,unsigned depth)512 visual_has_alpha(xcb_visualtype_t *visual, unsigned depth)
513 {
514 uint32_t rgb_mask = visual->red_mask |
515 visual->green_mask |
516 visual->blue_mask;
517
518 uint32_t all_mask = 0xffffffff >> (32 - depth);
519
520 /* Do we have bits left over after RGB? */
521 return (all_mask & ~rgb_mask) != 0;
522 }
523
524 static bool
visual_supported(xcb_visualtype_t * visual)525 visual_supported(xcb_visualtype_t *visual)
526 {
527 if (!visual)
528 return false;
529
530 return visual->bits_per_rgb_value == 8 || visual->bits_per_rgb_value == 10;
531 }
532
533 VKAPI_ATTR VkBool32 VKAPI_CALL
wsi_GetPhysicalDeviceXcbPresentationSupportKHR(VkPhysicalDevice physicalDevice,uint32_t queueFamilyIndex,xcb_connection_t * connection,xcb_visualid_t visual_id)534 wsi_GetPhysicalDeviceXcbPresentationSupportKHR(VkPhysicalDevice physicalDevice,
535 uint32_t queueFamilyIndex,
536 xcb_connection_t *connection,
537 xcb_visualid_t visual_id)
538 {
539 VK_FROM_HANDLE(vk_physical_device, pdevice, physicalDevice);
540 struct wsi_device *wsi_device = pdevice->wsi_device;
541 struct wsi_x11_connection *wsi_conn =
542 wsi_x11_get_connection(wsi_device, connection);
543
544 if (!wsi_conn)
545 return false;
546
547 if (!wsi_device->sw) {
548 if (!wsi_x11_check_for_dri3(wsi_conn))
549 return false;
550 }
551
552 if (!visual_supported(connection_get_visualtype(connection, visual_id)))
553 return false;
554
555 return true;
556 }
557
558 VKAPI_ATTR VkBool32 VKAPI_CALL
wsi_GetPhysicalDeviceXlibPresentationSupportKHR(VkPhysicalDevice physicalDevice,uint32_t queueFamilyIndex,Display * dpy,VisualID visualID)559 wsi_GetPhysicalDeviceXlibPresentationSupportKHR(VkPhysicalDevice physicalDevice,
560 uint32_t queueFamilyIndex,
561 Display *dpy,
562 VisualID visualID)
563 {
564 return wsi_GetPhysicalDeviceXcbPresentationSupportKHR(physicalDevice,
565 queueFamilyIndex,
566 XGetXCBConnection(dpy),
567 visualID);
568 }
569
570 static xcb_connection_t*
x11_surface_get_connection(VkIcdSurfaceBase * icd_surface)571 x11_surface_get_connection(VkIcdSurfaceBase *icd_surface)
572 {
573 if (icd_surface->platform == VK_ICD_WSI_PLATFORM_XLIB)
574 return XGetXCBConnection(((VkIcdSurfaceXlib *)icd_surface)->dpy);
575 else
576 return ((VkIcdSurfaceXcb *)icd_surface)->connection;
577 }
578
579 static xcb_window_t
x11_surface_get_window(VkIcdSurfaceBase * icd_surface)580 x11_surface_get_window(VkIcdSurfaceBase *icd_surface)
581 {
582 if (icd_surface->platform == VK_ICD_WSI_PLATFORM_XLIB)
583 return ((VkIcdSurfaceXlib *)icd_surface)->window;
584 else
585 return ((VkIcdSurfaceXcb *)icd_surface)->window;
586 }
587
588 static VkResult
x11_surface_get_support(VkIcdSurfaceBase * icd_surface,struct wsi_device * wsi_device,uint32_t queueFamilyIndex,VkBool32 * pSupported)589 x11_surface_get_support(VkIcdSurfaceBase *icd_surface,
590 struct wsi_device *wsi_device,
591 uint32_t queueFamilyIndex,
592 VkBool32* pSupported)
593 {
594 xcb_connection_t *conn = x11_surface_get_connection(icd_surface);
595 xcb_window_t window = x11_surface_get_window(icd_surface);
596
597 struct wsi_x11_connection *wsi_conn =
598 wsi_x11_get_connection(wsi_device, conn);
599 if (!wsi_conn)
600 return VK_ERROR_OUT_OF_HOST_MEMORY;
601
602 if (!wsi_device->sw) {
603 if (!wsi_x11_check_for_dri3(wsi_conn)) {
604 *pSupported = false;
605 return VK_SUCCESS;
606 }
607 }
608
609 if (!visual_supported(get_visualtype_for_window(conn, window, NULL))) {
610 *pSupported = false;
611 return VK_SUCCESS;
612 }
613
614 *pSupported = true;
615 return VK_SUCCESS;
616 }
617
618 static uint32_t
x11_get_min_image_count(const struct wsi_device * wsi_device)619 x11_get_min_image_count(const struct wsi_device *wsi_device)
620 {
621 if (wsi_device->x11.override_minImageCount)
622 return wsi_device->x11.override_minImageCount;
623
624 /* For IMMEDIATE and FIFO, most games work in a pipelined manner where the
625 * can produce frames at a rate of 1/MAX(CPU duration, GPU duration), but
626 * the render latency is CPU duration + GPU duration.
627 *
628 * This means that with scanout from pageflipping we need 3 frames to run
629 * full speed:
630 * 1) CPU rendering work
631 * 2) GPU rendering work
632 * 3) scanout
633 *
634 * Once we have a nonblocking acquire that returns a semaphore we can merge
635 * 1 and 3. Hence the ideal implementation needs only 2 images, but games
636 * cannot tellwe currently do not have an ideal implementation and that
637 * hence they need to allocate 3 images. So let us do it for them.
638 *
639 * This is a tradeoff as it uses more memory than needed for non-fullscreen
640 * and non-performance intensive applications.
641 */
642 return 3;
643 }
644
645 static VkResult
x11_surface_get_capabilities(VkIcdSurfaceBase * icd_surface,struct wsi_device * wsi_device,VkSurfaceCapabilitiesKHR * caps)646 x11_surface_get_capabilities(VkIcdSurfaceBase *icd_surface,
647 struct wsi_device *wsi_device,
648 VkSurfaceCapabilitiesKHR *caps)
649 {
650 xcb_connection_t *conn = x11_surface_get_connection(icd_surface);
651 xcb_window_t window = x11_surface_get_window(icd_surface);
652 xcb_get_geometry_cookie_t geom_cookie;
653 xcb_generic_error_t *err;
654 xcb_get_geometry_reply_t *geom;
655 unsigned visual_depth;
656
657 geom_cookie = xcb_get_geometry(conn, window);
658
659 /* This does a round-trip. This is why we do get_geometry first and
660 * wait to read the reply until after we have a visual.
661 */
662 xcb_visualtype_t *visual =
663 get_visualtype_for_window(conn, window, &visual_depth);
664
665 if (!visual)
666 return VK_ERROR_SURFACE_LOST_KHR;
667
668 geom = xcb_get_geometry_reply(conn, geom_cookie, &err);
669 if (geom) {
670 VkExtent2D extent = { geom->width, geom->height };
671 caps->currentExtent = extent;
672 caps->minImageExtent = extent;
673 caps->maxImageExtent = extent;
674 }
675 free(err);
676 free(geom);
677 if (!geom)
678 return VK_ERROR_SURFACE_LOST_KHR;
679
680 if (visual_has_alpha(visual, visual_depth)) {
681 caps->supportedCompositeAlpha = VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR |
682 VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR;
683 } else {
684 caps->supportedCompositeAlpha = VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR |
685 VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
686 }
687
688 caps->minImageCount = x11_get_min_image_count(wsi_device);
689 /* There is no real maximum */
690 caps->maxImageCount = 0;
691
692 caps->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
693 caps->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
694 caps->maxImageArrayLayers = 1;
695 caps->supportedUsageFlags =
696 VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
697 VK_IMAGE_USAGE_SAMPLED_BIT |
698 VK_IMAGE_USAGE_TRANSFER_DST_BIT |
699 VK_IMAGE_USAGE_STORAGE_BIT |
700 VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |
701 VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT;
702
703 return VK_SUCCESS;
704 }
705
706 static VkResult
x11_surface_get_capabilities2(VkIcdSurfaceBase * icd_surface,struct wsi_device * wsi_device,const void * info_next,VkSurfaceCapabilities2KHR * caps)707 x11_surface_get_capabilities2(VkIcdSurfaceBase *icd_surface,
708 struct wsi_device *wsi_device,
709 const void *info_next,
710 VkSurfaceCapabilities2KHR *caps)
711 {
712 assert(caps->sType == VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES_2_KHR);
713
714 VkResult result =
715 x11_surface_get_capabilities(icd_surface, wsi_device,
716 &caps->surfaceCapabilities);
717
718 if (result != VK_SUCCESS)
719 return result;
720
721 vk_foreach_struct(ext, caps->pNext) {
722 switch (ext->sType) {
723 case VK_STRUCTURE_TYPE_SURFACE_PROTECTED_CAPABILITIES_KHR: {
724 VkSurfaceProtectedCapabilitiesKHR *protected = (void *)ext;
725 protected->supportsProtected = VK_FALSE;
726 break;
727 }
728
729 default:
730 /* Ignored */
731 break;
732 }
733 }
734
735 return result;
736 }
737
738 static bool
get_sorted_vk_formats(VkIcdSurfaceBase * surface,struct wsi_device * wsi_device,VkFormat * sorted_formats,unsigned * count)739 get_sorted_vk_formats(VkIcdSurfaceBase *surface, struct wsi_device *wsi_device,
740 VkFormat *sorted_formats, unsigned *count)
741 {
742 xcb_connection_t *conn = x11_surface_get_connection(surface);
743 xcb_window_t window = x11_surface_get_window(surface);
744 xcb_visualtype_t *visual = get_visualtype_for_window(conn, window, NULL);
745 if (!visual)
746 return false;
747
748 *count = 0;
749 for (unsigned i = 0; i < ARRAY_SIZE(formats); i++) {
750 if (formats[i].bits_per_rgb == visual->bits_per_rgb_value)
751 sorted_formats[(*count)++] = formats[i].format;
752 }
753
754 if (wsi_device->force_bgra8_unorm_first) {
755 for (unsigned i = 0; i < *count; i++) {
756 if (sorted_formats[i] == VK_FORMAT_B8G8R8A8_UNORM) {
757 sorted_formats[i] = sorted_formats[0];
758 sorted_formats[0] = VK_FORMAT_B8G8R8A8_UNORM;
759 break;
760 }
761 }
762 }
763
764 return true;
765 }
766
767 static VkResult
x11_surface_get_formats(VkIcdSurfaceBase * surface,struct wsi_device * wsi_device,uint32_t * pSurfaceFormatCount,VkSurfaceFormatKHR * pSurfaceFormats)768 x11_surface_get_formats(VkIcdSurfaceBase *surface,
769 struct wsi_device *wsi_device,
770 uint32_t *pSurfaceFormatCount,
771 VkSurfaceFormatKHR *pSurfaceFormats)
772 {
773 VK_OUTARRAY_MAKE_TYPED(VkSurfaceFormatKHR, out,
774 pSurfaceFormats, pSurfaceFormatCount);
775
776 unsigned count;
777 VkFormat sorted_formats[ARRAY_SIZE(formats)];
778 if (!get_sorted_vk_formats(surface, wsi_device, sorted_formats, &count))
779 return VK_ERROR_SURFACE_LOST_KHR;
780
781 for (unsigned i = 0; i < count; i++) {
782 vk_outarray_append_typed(VkSurfaceFormatKHR, &out, f) {
783 f->format = sorted_formats[i];
784 f->colorSpace = VK_COLOR_SPACE_SRGB_NONLINEAR_KHR;
785 }
786 }
787
788 return vk_outarray_status(&out);
789 }
790
791 static VkResult
x11_surface_get_formats2(VkIcdSurfaceBase * surface,struct wsi_device * wsi_device,const void * info_next,uint32_t * pSurfaceFormatCount,VkSurfaceFormat2KHR * pSurfaceFormats)792 x11_surface_get_formats2(VkIcdSurfaceBase *surface,
793 struct wsi_device *wsi_device,
794 const void *info_next,
795 uint32_t *pSurfaceFormatCount,
796 VkSurfaceFormat2KHR *pSurfaceFormats)
797 {
798 VK_OUTARRAY_MAKE_TYPED(VkSurfaceFormat2KHR, out,
799 pSurfaceFormats, pSurfaceFormatCount);
800
801 unsigned count;
802 VkFormat sorted_formats[ARRAY_SIZE(formats)];
803 if (!get_sorted_vk_formats(surface, wsi_device, sorted_formats, &count))
804 return VK_ERROR_SURFACE_LOST_KHR;
805
806 for (unsigned i = 0; i < count; i++) {
807 vk_outarray_append_typed(VkSurfaceFormat2KHR, &out, f) {
808 assert(f->sType == VK_STRUCTURE_TYPE_SURFACE_FORMAT_2_KHR);
809 f->surfaceFormat.format = sorted_formats[i];
810 f->surfaceFormat.colorSpace = VK_COLOR_SPACE_SRGB_NONLINEAR_KHR;
811 }
812 }
813
814 return vk_outarray_status(&out);
815 }
816
817 static VkResult
x11_surface_get_present_modes(VkIcdSurfaceBase * surface,uint32_t * pPresentModeCount,VkPresentModeKHR * pPresentModes)818 x11_surface_get_present_modes(VkIcdSurfaceBase *surface,
819 uint32_t *pPresentModeCount,
820 VkPresentModeKHR *pPresentModes)
821 {
822 if (pPresentModes == NULL) {
823 *pPresentModeCount = ARRAY_SIZE(present_modes);
824 return VK_SUCCESS;
825 }
826
827 *pPresentModeCount = MIN2(*pPresentModeCount, ARRAY_SIZE(present_modes));
828 typed_memcpy(pPresentModes, present_modes, *pPresentModeCount);
829
830 return *pPresentModeCount < ARRAY_SIZE(present_modes) ?
831 VK_INCOMPLETE : VK_SUCCESS;
832 }
833
834 static VkResult
x11_surface_get_present_rectangles(VkIcdSurfaceBase * icd_surface,struct wsi_device * wsi_device,uint32_t * pRectCount,VkRect2D * pRects)835 x11_surface_get_present_rectangles(VkIcdSurfaceBase *icd_surface,
836 struct wsi_device *wsi_device,
837 uint32_t* pRectCount,
838 VkRect2D* pRects)
839 {
840 xcb_connection_t *conn = x11_surface_get_connection(icd_surface);
841 xcb_window_t window = x11_surface_get_window(icd_surface);
842 VK_OUTARRAY_MAKE_TYPED(VkRect2D, out, pRects, pRectCount);
843
844 vk_outarray_append_typed(VkRect2D, &out, rect) {
845 xcb_generic_error_t *err = NULL;
846 xcb_get_geometry_cookie_t geom_cookie = xcb_get_geometry(conn, window);
847 xcb_get_geometry_reply_t *geom =
848 xcb_get_geometry_reply(conn, geom_cookie, &err);
849 free(err);
850 if (geom) {
851 *rect = (VkRect2D) {
852 .offset = { 0, 0 },
853 .extent = { geom->width, geom->height },
854 };
855 }
856 free(geom);
857 if (!geom)
858 return VK_ERROR_SURFACE_LOST_KHR;
859 }
860
861 return vk_outarray_status(&out);
862 }
863
864 VKAPI_ATTR VkResult VKAPI_CALL
wsi_CreateXcbSurfaceKHR(VkInstance _instance,const VkXcbSurfaceCreateInfoKHR * pCreateInfo,const VkAllocationCallbacks * pAllocator,VkSurfaceKHR * pSurface)865 wsi_CreateXcbSurfaceKHR(VkInstance _instance,
866 const VkXcbSurfaceCreateInfoKHR *pCreateInfo,
867 const VkAllocationCallbacks *pAllocator,
868 VkSurfaceKHR *pSurface)
869 {
870 VK_FROM_HANDLE(vk_instance, instance, _instance);
871 VkIcdSurfaceXcb *surface;
872
873 assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR);
874
875 surface = vk_alloc2(&instance->alloc, pAllocator, sizeof *surface, 8,
876 VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
877 if (surface == NULL)
878 return VK_ERROR_OUT_OF_HOST_MEMORY;
879
880 surface->base.platform = VK_ICD_WSI_PLATFORM_XCB;
881 surface->connection = pCreateInfo->connection;
882 surface->window = pCreateInfo->window;
883
884 *pSurface = VkIcdSurfaceBase_to_handle(&surface->base);
885 return VK_SUCCESS;
886 }
887
888 VKAPI_ATTR VkResult VKAPI_CALL
wsi_CreateXlibSurfaceKHR(VkInstance _instance,const VkXlibSurfaceCreateInfoKHR * pCreateInfo,const VkAllocationCallbacks * pAllocator,VkSurfaceKHR * pSurface)889 wsi_CreateXlibSurfaceKHR(VkInstance _instance,
890 const VkXlibSurfaceCreateInfoKHR *pCreateInfo,
891 const VkAllocationCallbacks *pAllocator,
892 VkSurfaceKHR *pSurface)
893 {
894 VK_FROM_HANDLE(vk_instance, instance, _instance);
895 VkIcdSurfaceXlib *surface;
896
897 assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR);
898
899 surface = vk_alloc2(&instance->alloc, pAllocator, sizeof *surface, 8,
900 VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
901 if (surface == NULL)
902 return VK_ERROR_OUT_OF_HOST_MEMORY;
903
904 surface->base.platform = VK_ICD_WSI_PLATFORM_XLIB;
905 surface->dpy = pCreateInfo->dpy;
906 surface->window = pCreateInfo->window;
907
908 *pSurface = VkIcdSurfaceBase_to_handle(&surface->base);
909 return VK_SUCCESS;
910 }
911
912 struct x11_image {
913 struct wsi_image base;
914 xcb_pixmap_t pixmap;
915 xcb_xfixes_region_t update_region; /* long lived XID */
916 xcb_xfixes_region_t update_area; /* the above or None */
917 bool busy;
918 bool present_queued;
919 struct xshmfence * shm_fence;
920 uint32_t sync_fence;
921 uint32_t serial;
922 xcb_shm_seg_t shmseg;
923 int shmid;
924 uint8_t * shmaddr;
925 };
926
927 struct x11_swapchain {
928 struct wsi_swapchain base;
929
930 bool has_dri3_modifiers;
931 bool has_mit_shm;
932
933 xcb_connection_t * conn;
934 xcb_window_t window;
935 xcb_gc_t gc;
936 uint32_t depth;
937 VkExtent2D extent;
938
939 xcb_present_event_t event_id;
940 xcb_special_event_t * special_event;
941 uint64_t send_sbc;
942 uint64_t last_present_msc;
943 uint32_t stamp;
944 atomic_int sent_image_count;
945
946 bool has_present_queue;
947 bool has_acquire_queue;
948 VkResult status;
949 bool copy_is_suboptimal;
950 struct wsi_queue present_queue;
951 struct wsi_queue acquire_queue;
952 pthread_t queue_manager;
953
954 struct x11_image images[0];
955 };
956 VK_DEFINE_NONDISP_HANDLE_CASTS(x11_swapchain, base.base, VkSwapchainKHR,
957 VK_OBJECT_TYPE_SWAPCHAIN_KHR)
958
959 /**
960 * Update the swapchain status with the result of an operation, and return
961 * the combined status. The chain status will eventually be returned from
962 * AcquireNextImage and QueuePresent.
963 *
964 * We make sure to 'stick' more pessimistic statuses: an out-of-date error
965 * is permanent once seen, and every subsequent call will return this. If
966 * this has not been seen, success will be returned.
967 */
968 static VkResult
_x11_swapchain_result(struct x11_swapchain * chain,VkResult result,const char * file,int line)969 _x11_swapchain_result(struct x11_swapchain *chain, VkResult result,
970 const char *file, int line)
971 {
972 /* Prioritise returning existing errors for consistency. */
973 if (chain->status < 0)
974 return chain->status;
975
976 /* If we have a new error, mark it as permanent on the chain and return. */
977 if (result < 0) {
978 #ifndef NDEBUG
979 fprintf(stderr, "%s:%d: Swapchain status changed to %s\n",
980 file, line, vk_Result_to_str(result));
981 #endif
982 chain->status = result;
983 return result;
984 }
985
986 /* Return temporary errors, but don't persist them. */
987 if (result == VK_TIMEOUT || result == VK_NOT_READY)
988 return result;
989
990 /* Suboptimal isn't an error, but is a status which sticks to the swapchain
991 * and is always returned rather than success.
992 */
993 if (result == VK_SUBOPTIMAL_KHR) {
994 #ifndef NDEBUG
995 if (chain->status != VK_SUBOPTIMAL_KHR) {
996 fprintf(stderr, "%s:%d: Swapchain status changed to %s\n",
997 file, line, vk_Result_to_str(result));
998 }
999 #endif
1000 chain->status = result;
1001 return result;
1002 }
1003
1004 /* No changes, so return the last status. */
1005 return chain->status;
1006 }
1007 #define x11_swapchain_result(chain, result) \
1008 _x11_swapchain_result(chain, result, __FILE__, __LINE__)
1009
1010 static struct wsi_image *
x11_get_wsi_image(struct wsi_swapchain * wsi_chain,uint32_t image_index)1011 x11_get_wsi_image(struct wsi_swapchain *wsi_chain, uint32_t image_index)
1012 {
1013 struct x11_swapchain *chain = (struct x11_swapchain *)wsi_chain;
1014 return &chain->images[image_index].base;
1015 }
1016
1017 /**
1018 * Process an X11 Present event. Does not update chain->status.
1019 */
1020 static VkResult
x11_handle_dri3_present_event(struct x11_swapchain * chain,xcb_present_generic_event_t * event)1021 x11_handle_dri3_present_event(struct x11_swapchain *chain,
1022 xcb_present_generic_event_t *event)
1023 {
1024 switch (event->evtype) {
1025 case XCB_PRESENT_CONFIGURE_NOTIFY: {
1026 xcb_present_configure_notify_event_t *config = (void *) event;
1027
1028 if (config->width != chain->extent.width ||
1029 config->height != chain->extent.height)
1030 return VK_SUBOPTIMAL_KHR;
1031
1032 break;
1033 }
1034
1035 case XCB_PRESENT_EVENT_IDLE_NOTIFY: {
1036 xcb_present_idle_notify_event_t *idle = (void *) event;
1037
1038 for (unsigned i = 0; i < chain->base.image_count; i++) {
1039 if (chain->images[i].pixmap == idle->pixmap) {
1040 chain->images[i].busy = false;
1041 chain->sent_image_count--;
1042 assert(chain->sent_image_count >= 0);
1043 if (chain->has_acquire_queue)
1044 wsi_queue_push(&chain->acquire_queue, i);
1045 break;
1046 }
1047 }
1048
1049 break;
1050 }
1051
1052 case XCB_PRESENT_EVENT_COMPLETE_NOTIFY: {
1053 xcb_present_complete_notify_event_t *complete = (void *) event;
1054 if (complete->kind == XCB_PRESENT_COMPLETE_KIND_PIXMAP) {
1055 unsigned i;
1056 for (i = 0; i < chain->base.image_count; i++) {
1057 struct x11_image *image = &chain->images[i];
1058 if (image->present_queued && image->serial == complete->serial)
1059 image->present_queued = false;
1060 }
1061 chain->last_present_msc = complete->msc;
1062 }
1063
1064 VkResult result = VK_SUCCESS;
1065 switch (complete->mode) {
1066 case XCB_PRESENT_COMPLETE_MODE_COPY:
1067 if (chain->copy_is_suboptimal)
1068 result = VK_SUBOPTIMAL_KHR;
1069 break;
1070 case XCB_PRESENT_COMPLETE_MODE_FLIP:
1071 /* If we ever go from flipping to copying, the odds are very likely
1072 * that we could reallocate in a more optimal way if we didn't have
1073 * to care about scanout, so we always do this.
1074 */
1075 chain->copy_is_suboptimal = true;
1076 break;
1077 #ifdef HAVE_DRI3_MODIFIERS
1078 case XCB_PRESENT_COMPLETE_MODE_SUBOPTIMAL_COPY:
1079 /* The winsys is now trying to flip directly and cannot due to our
1080 * configuration. Request the user reallocate.
1081 */
1082 result = VK_SUBOPTIMAL_KHR;
1083 break;
1084 #endif
1085 default:
1086 break;
1087 }
1088
1089 return result;
1090 }
1091
1092 default:
1093 break;
1094 }
1095
1096 return VK_SUCCESS;
1097 }
1098
1099
wsi_get_absolute_timeout(uint64_t timeout)1100 static uint64_t wsi_get_absolute_timeout(uint64_t timeout)
1101 {
1102 uint64_t current_time = os_time_get_nano();
1103
1104 timeout = MIN2(UINT64_MAX - current_time, timeout);
1105
1106 return current_time + timeout;
1107 }
1108
1109 /**
1110 * Acquire a ready-to-use image directly from our swapchain. If all images are
1111 * busy wait until one is not anymore or till timeout.
1112 */
1113 static VkResult
x11_acquire_next_image_poll_x11(struct x11_swapchain * chain,uint32_t * image_index,uint64_t timeout)1114 x11_acquire_next_image_poll_x11(struct x11_swapchain *chain,
1115 uint32_t *image_index, uint64_t timeout)
1116 {
1117 xcb_generic_event_t *event;
1118 struct pollfd pfds;
1119 uint64_t atimeout;
1120 while (1) {
1121 for (uint32_t i = 0; i < chain->base.image_count; i++) {
1122 if (!chain->images[i].busy) {
1123 /* We found a non-busy image */
1124 xshmfence_await(chain->images[i].shm_fence);
1125 *image_index = i;
1126 chain->images[i].busy = true;
1127 return x11_swapchain_result(chain, VK_SUCCESS);
1128 }
1129 }
1130
1131 xcb_flush(chain->conn);
1132
1133 if (timeout == UINT64_MAX) {
1134 event = xcb_wait_for_special_event(chain->conn, chain->special_event);
1135 if (!event)
1136 return x11_swapchain_result(chain, VK_ERROR_SURFACE_LOST_KHR);
1137 } else {
1138 event = xcb_poll_for_special_event(chain->conn, chain->special_event);
1139 if (!event) {
1140 int ret;
1141 if (timeout == 0)
1142 return x11_swapchain_result(chain, VK_NOT_READY);
1143
1144 atimeout = wsi_get_absolute_timeout(timeout);
1145
1146 pfds.fd = xcb_get_file_descriptor(chain->conn);
1147 pfds.events = POLLIN;
1148 ret = poll(&pfds, 1, timeout / 1000 / 1000);
1149 if (ret == 0)
1150 return x11_swapchain_result(chain, VK_TIMEOUT);
1151 if (ret == -1)
1152 return x11_swapchain_result(chain, VK_ERROR_OUT_OF_DATE_KHR);
1153
1154 /* If a non-special event happens, the fd will still
1155 * poll. So recalculate the timeout now just in case.
1156 */
1157 uint64_t current_time = os_time_get_nano();
1158 if (atimeout > current_time)
1159 timeout = atimeout - current_time;
1160 else
1161 timeout = 0;
1162 continue;
1163 }
1164 }
1165
1166 /* Update the swapchain status here. We may catch non-fatal errors here,
1167 * in which case we need to update the status and continue.
1168 */
1169 VkResult result = x11_handle_dri3_present_event(chain, (void *)event);
1170 /* Ensure that VK_SUBOPTIMAL_KHR is reported to the application */
1171 result = x11_swapchain_result(chain, result);
1172 free(event);
1173 if (result < 0)
1174 return result;
1175 }
1176 }
1177
1178 /**
1179 * Acquire a ready-to-use image from the acquire-queue. Only relevant in fifo
1180 * presentation mode.
1181 */
1182 static VkResult
x11_acquire_next_image_from_queue(struct x11_swapchain * chain,uint32_t * image_index_out,uint64_t timeout)1183 x11_acquire_next_image_from_queue(struct x11_swapchain *chain,
1184 uint32_t *image_index_out, uint64_t timeout)
1185 {
1186 assert(chain->has_acquire_queue);
1187
1188 uint32_t image_index;
1189 VkResult result = wsi_queue_pull(&chain->acquire_queue,
1190 &image_index, timeout);
1191 if (result < 0 || result == VK_TIMEOUT) {
1192 /* On error, the thread has shut down, so safe to update chain->status.
1193 * Calling x11_swapchain_result with VK_TIMEOUT won't modify
1194 * chain->status so that is also safe.
1195 */
1196 return x11_swapchain_result(chain, result);
1197 } else if (chain->status < 0) {
1198 return chain->status;
1199 }
1200
1201 assert(image_index < chain->base.image_count);
1202 xshmfence_await(chain->images[image_index].shm_fence);
1203
1204 *image_index_out = image_index;
1205
1206 return chain->status;
1207 }
1208
1209 /**
1210 * Send image to X server via Present extension.
1211 */
1212 static VkResult
x11_present_to_x11_dri3(struct x11_swapchain * chain,uint32_t image_index,uint64_t target_msc)1213 x11_present_to_x11_dri3(struct x11_swapchain *chain, uint32_t image_index,
1214 uint64_t target_msc)
1215 {
1216 struct x11_image *image = &chain->images[image_index];
1217
1218 assert(image_index < chain->base.image_count);
1219
1220 uint32_t options = XCB_PRESENT_OPTION_NONE;
1221
1222 int64_t divisor = 0;
1223 int64_t remainder = 0;
1224
1225 struct wsi_x11_connection *wsi_conn =
1226 wsi_x11_get_connection((struct wsi_device*)chain->base.wsi, chain->conn);
1227 if (!wsi_conn)
1228 return VK_ERROR_OUT_OF_HOST_MEMORY;
1229
1230 if (chain->base.present_mode == VK_PRESENT_MODE_IMMEDIATE_KHR ||
1231 (chain->base.present_mode == VK_PRESENT_MODE_MAILBOX_KHR &&
1232 wsi_conn->is_xwayland) ||
1233 chain->base.present_mode == VK_PRESENT_MODE_FIFO_RELAXED_KHR)
1234 options |= XCB_PRESENT_OPTION_ASYNC;
1235
1236 #ifdef HAVE_DRI3_MODIFIERS
1237 if (chain->has_dri3_modifiers)
1238 options |= XCB_PRESENT_OPTION_SUBOPTIMAL;
1239 #endif
1240
1241 /* Poll for any available event and update the swapchain status. This could
1242 * update the status of the swapchain to SUBOPTIMAL or OUT_OF_DATE if the
1243 * associated X11 surface has been resized.
1244 */
1245 xcb_generic_event_t *event;
1246 while ((event = xcb_poll_for_special_event(chain->conn, chain->special_event))) {
1247 VkResult result = x11_handle_dri3_present_event(chain, (void *)event);
1248 /* Ensure that VK_SUBOPTIMAL_KHR is reported to the application */
1249 result = x11_swapchain_result(chain, result);
1250 free(event);
1251 if (result < 0)
1252 return result;
1253 }
1254
1255 xshmfence_reset(image->shm_fence);
1256
1257 ++chain->sent_image_count;
1258 assert(chain->sent_image_count <= chain->base.image_count);
1259
1260 ++chain->send_sbc;
1261 image->present_queued = true;
1262 image->serial = (uint32_t) chain->send_sbc;
1263
1264 xcb_void_cookie_t cookie =
1265 xcb_present_pixmap_checked(chain->conn,
1266 chain->window,
1267 image->pixmap,
1268 image->serial,
1269 0, /* valid */
1270 image->update_area, /* update */
1271 0, /* x_off */
1272 0, /* y_off */
1273 XCB_NONE, /* target_crtc */
1274 XCB_NONE,
1275 image->sync_fence,
1276 options,
1277 target_msc,
1278 divisor,
1279 remainder, 0, NULL);
1280 xcb_generic_error_t *error = xcb_request_check(chain->conn, cookie);
1281 if (error) {
1282 free(error);
1283 return x11_swapchain_result(chain, VK_ERROR_SURFACE_LOST_KHR);
1284 }
1285
1286 return x11_swapchain_result(chain, VK_SUCCESS);
1287 }
1288
1289 /**
1290 * Send image to X server unaccelerated (software drivers).
1291 */
1292 static VkResult
x11_present_to_x11_sw(struct x11_swapchain * chain,uint32_t image_index,uint64_t target_msc)1293 x11_present_to_x11_sw(struct x11_swapchain *chain, uint32_t image_index,
1294 uint64_t target_msc)
1295 {
1296 struct x11_image *image = &chain->images[image_index];
1297
1298 xcb_void_cookie_t cookie;
1299 void *myptr = image->base.cpu_map;
1300 size_t hdr_len = sizeof(xcb_put_image_request_t);
1301 int stride_b = image->base.row_pitches[0];
1302 size_t size = (hdr_len + stride_b * chain->extent.height) >> 2;
1303 uint64_t max_req_len = xcb_get_maximum_request_length(chain->conn);
1304 chain->images[image_index].busy = false;
1305
1306 if (size < max_req_len) {
1307 cookie = xcb_put_image(chain->conn, XCB_IMAGE_FORMAT_Z_PIXMAP,
1308 chain->window,
1309 chain->gc,
1310 image->base.row_pitches[0] / 4,
1311 chain->extent.height,
1312 0,0,0,24,
1313 image->base.row_pitches[0] * chain->extent.height,
1314 image->base.cpu_map);
1315 xcb_discard_reply(chain->conn, cookie.sequence);
1316 } else {
1317 int num_lines = ((max_req_len << 2) - hdr_len) / stride_b;
1318 int y_start = 0;
1319 int y_todo = chain->extent.height;
1320 while (y_todo) {
1321 int this_lines = MIN2(num_lines, y_todo);
1322 cookie = xcb_put_image(chain->conn, XCB_IMAGE_FORMAT_Z_PIXMAP,
1323 chain->window,
1324 chain->gc,
1325 image->base.row_pitches[0] / 4,
1326 this_lines,
1327 0,y_start,0,24,
1328 this_lines * stride_b,
1329 (const uint8_t *)myptr + (y_start * stride_b));
1330 xcb_discard_reply(chain->conn, cookie.sequence);
1331 y_start += this_lines;
1332 y_todo -= this_lines;
1333 }
1334 }
1335
1336 xcb_flush(chain->conn);
1337 return x11_swapchain_result(chain, VK_SUCCESS);
1338 }
1339
1340 /**
1341 * Send image to the X server for presentation at target_msc.
1342 */
1343 static VkResult
x11_present_to_x11(struct x11_swapchain * chain,uint32_t image_index,uint64_t target_msc)1344 x11_present_to_x11(struct x11_swapchain *chain, uint32_t image_index,
1345 uint64_t target_msc)
1346 {
1347 if (chain->base.wsi->sw && !chain->has_mit_shm)
1348 return x11_present_to_x11_sw(chain, image_index, target_msc);
1349 return x11_present_to_x11_dri3(chain, image_index, target_msc);
1350 }
1351
1352 /**
1353 * Acquire a ready-to-use image from the swapchain.
1354 *
1355 * This means usually that the image is not waiting on presentation and that the
1356 * image has been released by the X server to be used again by the consumer.
1357 */
1358 static VkResult
x11_acquire_next_image(struct wsi_swapchain * anv_chain,const VkAcquireNextImageInfoKHR * info,uint32_t * image_index)1359 x11_acquire_next_image(struct wsi_swapchain *anv_chain,
1360 const VkAcquireNextImageInfoKHR *info,
1361 uint32_t *image_index)
1362 {
1363 struct x11_swapchain *chain = (struct x11_swapchain *)anv_chain;
1364 uint64_t timeout = info->timeout;
1365
1366 /* If the swapchain is in an error state, don't go any further. */
1367 if (chain->status < 0)
1368 return chain->status;
1369
1370 if (chain->base.wsi->sw && !chain->has_mit_shm) {
1371 for (unsigned i = 0; i < chain->base.image_count; i++) {
1372 if (!chain->images[i].busy) {
1373 *image_index = i;
1374 chain->images[i].busy = true;
1375 xcb_generic_error_t *err;
1376
1377 xcb_get_geometry_cookie_t geom_cookie = xcb_get_geometry(chain->conn, chain->window);
1378 xcb_get_geometry_reply_t *geom = xcb_get_geometry_reply(chain->conn, geom_cookie, &err);
1379 VkResult result = VK_SUCCESS;
1380 if (geom) {
1381 if (chain->extent.width != geom->width ||
1382 chain->extent.height != geom->height)
1383 result = VK_SUBOPTIMAL_KHR;
1384 } else {
1385 result = VK_ERROR_SURFACE_LOST_KHR;
1386 }
1387 free(err);
1388 free(geom);
1389 return result;
1390 }
1391 }
1392 return VK_NOT_READY;
1393 }
1394
1395 if (chain->has_acquire_queue) {
1396 return x11_acquire_next_image_from_queue(chain, image_index, timeout);
1397 } else {
1398 return x11_acquire_next_image_poll_x11(chain, image_index, timeout);
1399 }
1400 }
1401
1402 #define MAX_DAMAGE_RECTS 64
1403
1404 /**
1405 * Queue a new presentation of an image that was previously acquired by the
1406 * consumer.
1407 *
1408 * Note that in immediate presentation mode this does not really queue the
1409 * presentation but directly asks the X server to show it.
1410 */
1411 static VkResult
x11_queue_present(struct wsi_swapchain * anv_chain,uint32_t image_index,const VkPresentRegionKHR * damage)1412 x11_queue_present(struct wsi_swapchain *anv_chain,
1413 uint32_t image_index,
1414 const VkPresentRegionKHR *damage)
1415 {
1416 struct x11_swapchain *chain = (struct x11_swapchain *)anv_chain;
1417 xcb_xfixes_region_t update_area = 0;
1418
1419 /* If the swapchain is in an error state, don't go any further. */
1420 if (chain->status < 0)
1421 return chain->status;
1422
1423 if (damage && damage->pRectangles && damage->rectangleCount > 0 &&
1424 damage->rectangleCount <= MAX_DAMAGE_RECTS) {
1425 xcb_rectangle_t rects[MAX_DAMAGE_RECTS];
1426
1427 update_area = chain->images[image_index].update_region;
1428 for (unsigned i = 0; i < damage->rectangleCount; i++) {
1429 const VkRectLayerKHR *rect = &damage->pRectangles[i];
1430 assert(rect->layer == 0);
1431 rects[i].x = rect->offset.x;
1432 rects[i].y = rect->offset.y;
1433 rects[i].width = rect->extent.width;
1434 rects[i].height = rect->extent.height;
1435 }
1436 xcb_xfixes_set_region(chain->conn, update_area, damage->rectangleCount, rects);
1437 }
1438 chain->images[image_index].update_area = update_area;
1439
1440 chain->images[image_index].busy = true;
1441 if (chain->has_present_queue) {
1442 wsi_queue_push(&chain->present_queue, image_index);
1443 return chain->status;
1444 } else {
1445 /* No present queue means immedate mode, so we present immediately. */
1446 return x11_present_to_x11(chain, image_index, 0);
1447 }
1448 }
1449
1450 /**
1451 * Decides if an early wait on buffer fences before buffer submission is required. That is for:
1452 * - Mailbox mode, as otherwise the latest image in the queue might not be fully rendered at
1453 * present time, what could lead to missing a frame.
1454 * - Immediate mode under Xwayland, as it works practically the same as mailbox mode using the
1455 * mailbox mechanism of Wayland. Sending a buffer with fences not yet signalled can make the
1456 * compositor miss a frame when compositing the final image with this buffer.
1457 *
1458 * Note though that early waits can be disabled in general on Xwayland by setting the
1459 * 'vk_xwayland_wait_ready' DRIConf option to false.
1460 */
1461 static bool
x11_needs_wait_for_fences(const struct wsi_device * wsi_device,struct wsi_x11_connection * wsi_conn,VkPresentModeKHR present_mode)1462 x11_needs_wait_for_fences(const struct wsi_device *wsi_device,
1463 struct wsi_x11_connection *wsi_conn,
1464 VkPresentModeKHR present_mode)
1465 {
1466 if (wsi_conn->is_xwayland && !wsi_device->x11.xwaylandWaitReady) {
1467 return false;
1468 }
1469
1470 switch (present_mode) {
1471 case VK_PRESENT_MODE_MAILBOX_KHR:
1472 return true;
1473 case VK_PRESENT_MODE_IMMEDIATE_KHR:
1474 return wsi_conn->is_xwayland;
1475 default:
1476 return false;
1477 }
1478 }
1479
1480 /**
1481 * The number of images that are not owned by X11:
1482 * (1) in the ownership of the app, or
1483 * (2) app to take ownership through an acquire, or
1484 * (3) in the present queue waiting for the FIFO thread to present to X11.
1485 */
x11_driver_owned_images(const struct x11_swapchain * chain)1486 static unsigned x11_driver_owned_images(const struct x11_swapchain *chain)
1487 {
1488 return chain->base.image_count - chain->sent_image_count;
1489 }
1490
1491 /**
1492 * Our queue manager. Albeit called x11_manage_fifo_queues only directly
1493 * manages the present-queue and does this in general in fifo and mailbox presentation
1494 * modes (there is no present-queue in immediate mode with the exception of Xwayland).
1495 *
1496 * Runs in a separate thread, blocks and reacts to queued images on the
1497 * present-queue
1498 *
1499 * In mailbox mode the queue management is simplified since we only need to
1500 * pull new images from the present queue and can directly present them.
1501 *
1502 * In fifo mode images can only be presented one after the other. For that after
1503 * sending the image to the X server we wait until the image either has been
1504 * presented or released and only then pull a new image from the present-queue.
1505 */
1506 static void *
x11_manage_fifo_queues(void * state)1507 x11_manage_fifo_queues(void *state)
1508 {
1509 struct x11_swapchain *chain = state;
1510 struct wsi_x11_connection *wsi_conn =
1511 wsi_x11_get_connection((struct wsi_device*)chain->base.wsi, chain->conn);
1512 VkResult result = VK_SUCCESS;
1513
1514 assert(chain->has_present_queue);
1515
1516 u_thread_setname("WSI swapchain queue");
1517
1518 while (chain->status >= 0) {
1519 /* We can block here unconditionally because after an image was sent to
1520 * the server (later on in this loop) we ensure at least one image is
1521 * acquirable by the consumer or wait there on such an event.
1522 */
1523 uint32_t image_index = 0;
1524 result = wsi_queue_pull(&chain->present_queue, &image_index, INT64_MAX);
1525 assert(result != VK_TIMEOUT);
1526
1527 if (result < 0) {
1528 goto fail;
1529 } else if (chain->status < 0) {
1530 /* The status can change underneath us if the swapchain is destroyed
1531 * from another thread.
1532 */
1533 return NULL;
1534 }
1535
1536 /* Waiting for the GPU work to finish at this point in time is required in certain usage
1537 * scenarios. Otherwise we wait as usual in wsi_common_queue_present.
1538 */
1539 if (x11_needs_wait_for_fences(chain->base.wsi, wsi_conn,
1540 chain->base.present_mode)) {
1541 result = chain->base.wsi->WaitForFences(chain->base.device, 1,
1542 &chain->base.fences[image_index],
1543 true, UINT64_MAX);
1544 if (result != VK_SUCCESS) {
1545 result = VK_ERROR_OUT_OF_DATE_KHR;
1546 goto fail;
1547 }
1548 }
1549
1550 uint64_t target_msc = 0;
1551 if (chain->has_acquire_queue)
1552 target_msc = chain->last_present_msc + 1;
1553
1554 result = x11_present_to_x11(chain, image_index, target_msc);
1555 if (result < 0)
1556 goto fail;
1557
1558 if (chain->has_acquire_queue) {
1559 /* Assume this isn't a swapchain where we force 5 images, because those
1560 * don't end up with an acquire queue at the moment.
1561 */
1562 unsigned min_image_count = x11_get_min_image_count(chain->base.wsi);
1563
1564 /* With drirc overrides some games have swapchain with less than
1565 * minimum number of images. */
1566 min_image_count = MIN2(min_image_count, chain->base.image_count);
1567
1568 /* We always need to ensure that the app can have this number of images
1569 * acquired concurrently in between presents:
1570 * "VUID-vkAcquireNextImageKHR-swapchain-01802
1571 * If the number of currently acquired images is greater than the difference
1572 * between the number of images in swapchain and the value of
1573 * VkSurfaceCapabilitiesKHR::minImageCount as returned by a call to
1574 * vkGetPhysicalDeviceSurfaceCapabilities2KHR with the surface used to
1575 * create swapchain, timeout must not be UINT64_MAX"
1576 */
1577 unsigned forward_progress_guaranteed_acquired_images =
1578 chain->base.image_count - min_image_count + 1;
1579
1580 /* Wait for our presentation to occur and ensure we have at least one
1581 * image that can be acquired by the client afterwards. This ensures we
1582 * can pull on the present-queue on the next loop.
1583 */
1584 while (chain->images[image_index].present_queued ||
1585 /* If we have images in the present queue the outer loop won't block and a break
1586 * here would end up at this loop again, otherwise a break here satisfies
1587 * VUID-vkAcquireNextImageKHR-swapchain-01802 */
1588 x11_driver_owned_images(chain) < forward_progress_guaranteed_acquired_images) {
1589
1590 xcb_generic_event_t *event =
1591 xcb_wait_for_special_event(chain->conn, chain->special_event);
1592 if (!event) {
1593 result = VK_ERROR_SURFACE_LOST_KHR;
1594 goto fail;
1595 }
1596
1597 result = x11_handle_dri3_present_event(chain, (void *)event);
1598 /* Ensure that VK_SUBOPTIMAL_KHR is reported to the application */
1599 result = x11_swapchain_result(chain, result);
1600 free(event);
1601 if (result < 0)
1602 goto fail;
1603 }
1604 }
1605 }
1606
1607 fail:
1608 x11_swapchain_result(chain, result);
1609 if (chain->has_acquire_queue)
1610 wsi_queue_push(&chain->acquire_queue, UINT32_MAX);
1611
1612 return NULL;
1613 }
1614
1615 static uint8_t *
alloc_shm(struct wsi_image * imagew,unsigned size)1616 alloc_shm(struct wsi_image *imagew, unsigned size)
1617 {
1618 #ifdef HAVE_SYS_SHM_H
1619 struct x11_image *image = (struct x11_image *)imagew;
1620 image->shmid = shmget(IPC_PRIVATE, size, IPC_CREAT | 0600);
1621 if (image->shmid < 0)
1622 return NULL;
1623
1624 uint8_t *addr = (uint8_t *)shmat(image->shmid, 0, 0);
1625 /* mark the segment immediately for deletion to avoid leaks */
1626 shmctl(image->shmid, IPC_RMID, 0);
1627
1628 if (addr == (uint8_t *) -1)
1629 return NULL;
1630
1631 image->shmaddr = addr;
1632 return addr;
1633 #else
1634 return NULL;
1635 #endif
1636 }
1637
1638 static VkResult
x11_image_init(VkDevice device_h,struct x11_swapchain * chain,const VkSwapchainCreateInfoKHR * pCreateInfo,const VkAllocationCallbacks * pAllocator,struct x11_image * image)1639 x11_image_init(VkDevice device_h, struct x11_swapchain *chain,
1640 const VkSwapchainCreateInfoKHR *pCreateInfo,
1641 const VkAllocationCallbacks* pAllocator,
1642 struct x11_image *image)
1643 {
1644 xcb_void_cookie_t cookie;
1645 VkResult result;
1646 uint32_t bpp = 32;
1647 int fence_fd;
1648
1649 result = wsi_create_image(&chain->base, &chain->base.image_info,
1650 &image->base);
1651 if (result != VK_SUCCESS)
1652 return result;
1653
1654 image->update_region = xcb_generate_id(chain->conn);
1655 xcb_xfixes_create_region(chain->conn, image->update_region, 0, NULL);
1656
1657 if (chain->base.wsi->sw) {
1658 if (!chain->has_mit_shm) {
1659 image->busy = false;
1660 return VK_SUCCESS;
1661 }
1662
1663 image->shmseg = xcb_generate_id(chain->conn);
1664
1665 xcb_shm_attach(chain->conn,
1666 image->shmseg,
1667 image->shmid,
1668 0);
1669 image->pixmap = xcb_generate_id(chain->conn);
1670 cookie = xcb_shm_create_pixmap_checked(chain->conn,
1671 image->pixmap,
1672 chain->window,
1673 image->base.row_pitches[0] / 4,
1674 pCreateInfo->imageExtent.height,
1675 chain->depth,
1676 image->shmseg, 0);
1677 xcb_discard_reply(chain->conn, cookie.sequence);
1678 goto out_fence;
1679 }
1680 image->pixmap = xcb_generate_id(chain->conn);
1681
1682 #ifdef HAVE_DRI3_MODIFIERS
1683 if (image->base.drm_modifier != DRM_FORMAT_MOD_INVALID) {
1684 /* If the image has a modifier, we must have DRI3 v1.2. */
1685 assert(chain->has_dri3_modifiers);
1686
1687 /* XCB requires an array of file descriptors but we only have one */
1688 int fds[4] = { -1, -1, -1, -1 };
1689 for (int i = 0; i < image->base.num_planes; i++) {
1690 fds[i] = os_dupfd_cloexec(image->base.dma_buf_fd);
1691 if (fds[i] == -1) {
1692 for (int j = 0; j < i; j++)
1693 close(fds[j]);
1694
1695 return VK_ERROR_OUT_OF_HOST_MEMORY;
1696 }
1697 }
1698
1699 cookie =
1700 xcb_dri3_pixmap_from_buffers_checked(chain->conn,
1701 image->pixmap,
1702 chain->window,
1703 image->base.num_planes,
1704 pCreateInfo->imageExtent.width,
1705 pCreateInfo->imageExtent.height,
1706 image->base.row_pitches[0],
1707 image->base.offsets[0],
1708 image->base.row_pitches[1],
1709 image->base.offsets[1],
1710 image->base.row_pitches[2],
1711 image->base.offsets[2],
1712 image->base.row_pitches[3],
1713 image->base.offsets[3],
1714 chain->depth, bpp,
1715 image->base.drm_modifier,
1716 fds);
1717 } else
1718 #endif
1719 {
1720 /* Without passing modifiers, we can't have multi-plane RGB images. */
1721 assert(image->base.num_planes == 1);
1722
1723 /* XCB will take ownership of the FD we pass it. */
1724 int fd = os_dupfd_cloexec(image->base.dma_buf_fd);
1725 if (fd == -1)
1726 return VK_ERROR_OUT_OF_HOST_MEMORY;
1727
1728 cookie =
1729 xcb_dri3_pixmap_from_buffer_checked(chain->conn,
1730 image->pixmap,
1731 chain->window,
1732 image->base.sizes[0],
1733 pCreateInfo->imageExtent.width,
1734 pCreateInfo->imageExtent.height,
1735 image->base.row_pitches[0],
1736 chain->depth, bpp, fd);
1737 }
1738
1739 xcb_discard_reply(chain->conn, cookie.sequence);
1740
1741 out_fence:
1742 fence_fd = xshmfence_alloc_shm();
1743 if (fence_fd < 0)
1744 goto fail_pixmap;
1745
1746 image->shm_fence = xshmfence_map_shm(fence_fd);
1747 if (image->shm_fence == NULL)
1748 goto fail_shmfence_alloc;
1749
1750 image->sync_fence = xcb_generate_id(chain->conn);
1751 xcb_dri3_fence_from_fd(chain->conn,
1752 image->pixmap,
1753 image->sync_fence,
1754 false,
1755 fence_fd);
1756
1757 image->busy = false;
1758 xshmfence_trigger(image->shm_fence);
1759
1760 return VK_SUCCESS;
1761
1762 fail_shmfence_alloc:
1763 close(fence_fd);
1764
1765 fail_pixmap:
1766 cookie = xcb_free_pixmap(chain->conn, image->pixmap);
1767 xcb_discard_reply(chain->conn, cookie.sequence);
1768
1769 wsi_destroy_image(&chain->base, &image->base);
1770
1771 return VK_ERROR_INITIALIZATION_FAILED;
1772 }
1773
1774 static void
x11_image_finish(struct x11_swapchain * chain,const VkAllocationCallbacks * pAllocator,struct x11_image * image)1775 x11_image_finish(struct x11_swapchain *chain,
1776 const VkAllocationCallbacks* pAllocator,
1777 struct x11_image *image)
1778 {
1779 xcb_void_cookie_t cookie;
1780
1781 if (!chain->base.wsi->sw || chain->has_mit_shm) {
1782 cookie = xcb_sync_destroy_fence(chain->conn, image->sync_fence);
1783 xcb_discard_reply(chain->conn, cookie.sequence);
1784 xshmfence_unmap_shm(image->shm_fence);
1785
1786 cookie = xcb_free_pixmap(chain->conn, image->pixmap);
1787 xcb_discard_reply(chain->conn, cookie.sequence);
1788
1789 cookie = xcb_xfixes_destroy_region(chain->conn, image->update_region);
1790 xcb_discard_reply(chain->conn, cookie.sequence);
1791 }
1792
1793 wsi_destroy_image(&chain->base, &image->base);
1794 #ifdef HAVE_SYS_SHM_H
1795 if (image->shmaddr)
1796 shmdt(image->shmaddr);
1797 #endif
1798 }
1799
1800 static void
wsi_x11_get_dri3_modifiers(struct wsi_x11_connection * wsi_conn,xcb_connection_t * conn,xcb_window_t window,uint8_t depth,uint8_t bpp,VkCompositeAlphaFlagsKHR vk_alpha,uint64_t ** modifiers_in,uint32_t * num_modifiers_in,uint32_t * num_tranches_in,const VkAllocationCallbacks * pAllocator)1801 wsi_x11_get_dri3_modifiers(struct wsi_x11_connection *wsi_conn,
1802 xcb_connection_t *conn, xcb_window_t window,
1803 uint8_t depth, uint8_t bpp,
1804 VkCompositeAlphaFlagsKHR vk_alpha,
1805 uint64_t **modifiers_in, uint32_t *num_modifiers_in,
1806 uint32_t *num_tranches_in,
1807 const VkAllocationCallbacks *pAllocator)
1808 {
1809 if (!wsi_conn->has_dri3_modifiers)
1810 goto out;
1811
1812 #ifdef HAVE_DRI3_MODIFIERS
1813 xcb_generic_error_t *error = NULL;
1814 xcb_dri3_get_supported_modifiers_cookie_t mod_cookie =
1815 xcb_dri3_get_supported_modifiers(conn, window, depth, bpp);
1816 xcb_dri3_get_supported_modifiers_reply_t *mod_reply =
1817 xcb_dri3_get_supported_modifiers_reply(conn, mod_cookie, &error);
1818 free(error);
1819
1820 if (!mod_reply || (mod_reply->num_window_modifiers == 0 &&
1821 mod_reply->num_screen_modifiers == 0)) {
1822 free(mod_reply);
1823 goto out;
1824 }
1825
1826 uint32_t n = 0;
1827 uint32_t counts[2];
1828 uint64_t *modifiers[2];
1829
1830 if (mod_reply->num_window_modifiers) {
1831 counts[n] = mod_reply->num_window_modifiers;
1832 modifiers[n] = vk_alloc(pAllocator,
1833 counts[n] * sizeof(uint64_t),
1834 8, VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
1835 if (!modifiers[n]) {
1836 free(mod_reply);
1837 goto out;
1838 }
1839
1840 memcpy(modifiers[n],
1841 xcb_dri3_get_supported_modifiers_window_modifiers(mod_reply),
1842 counts[n] * sizeof(uint64_t));
1843 n++;
1844 }
1845
1846 if (mod_reply->num_screen_modifiers) {
1847 counts[n] = mod_reply->num_screen_modifiers;
1848 modifiers[n] = vk_alloc(pAllocator,
1849 counts[n] * sizeof(uint64_t),
1850 8, VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
1851 if (!modifiers[n]) {
1852 if (n > 0)
1853 vk_free(pAllocator, modifiers[0]);
1854 free(mod_reply);
1855 goto out;
1856 }
1857
1858 memcpy(modifiers[n],
1859 xcb_dri3_get_supported_modifiers_screen_modifiers(mod_reply),
1860 counts[n] * sizeof(uint64_t));
1861 n++;
1862 }
1863
1864 for (int i = 0; i < n; i++) {
1865 modifiers_in[i] = modifiers[i];
1866 num_modifiers_in[i] = counts[i];
1867 }
1868 *num_tranches_in = n;
1869
1870 free(mod_reply);
1871 return;
1872 #endif
1873 out:
1874 *num_tranches_in = 0;
1875 }
1876
1877 static VkResult
x11_swapchain_destroy(struct wsi_swapchain * anv_chain,const VkAllocationCallbacks * pAllocator)1878 x11_swapchain_destroy(struct wsi_swapchain *anv_chain,
1879 const VkAllocationCallbacks *pAllocator)
1880 {
1881 struct x11_swapchain *chain = (struct x11_swapchain *)anv_chain;
1882 xcb_void_cookie_t cookie;
1883
1884 if (chain->has_present_queue) {
1885 chain->status = VK_ERROR_OUT_OF_DATE_KHR;
1886 /* Push a UINT32_MAX to wake up the manager */
1887 wsi_queue_push(&chain->present_queue, UINT32_MAX);
1888 pthread_join(chain->queue_manager, NULL);
1889
1890 if (chain->has_acquire_queue)
1891 wsi_queue_destroy(&chain->acquire_queue);
1892 wsi_queue_destroy(&chain->present_queue);
1893 }
1894
1895 for (uint32_t i = 0; i < chain->base.image_count; i++)
1896 x11_image_finish(chain, pAllocator, &chain->images[i]);
1897 wsi_destroy_image_info(&chain->base, &chain->base.image_info);
1898
1899 xcb_unregister_for_special_event(chain->conn, chain->special_event);
1900 cookie = xcb_present_select_input_checked(chain->conn, chain->event_id,
1901 chain->window,
1902 XCB_PRESENT_EVENT_MASK_NO_EVENT);
1903 xcb_discard_reply(chain->conn, cookie.sequence);
1904
1905 wsi_swapchain_finish(&chain->base);
1906
1907 vk_free(pAllocator, chain);
1908
1909 return VK_SUCCESS;
1910 }
1911
1912 static void
wsi_x11_set_adaptive_sync_property(xcb_connection_t * conn,xcb_drawable_t drawable,uint32_t state)1913 wsi_x11_set_adaptive_sync_property(xcb_connection_t *conn,
1914 xcb_drawable_t drawable,
1915 uint32_t state)
1916 {
1917 static char const name[] = "_VARIABLE_REFRESH";
1918 xcb_intern_atom_cookie_t cookie;
1919 xcb_intern_atom_reply_t* reply;
1920 xcb_void_cookie_t check;
1921
1922 cookie = xcb_intern_atom(conn, 0, strlen(name), name);
1923 reply = xcb_intern_atom_reply(conn, cookie, NULL);
1924 if (reply == NULL)
1925 return;
1926
1927 if (state)
1928 check = xcb_change_property_checked(conn, XCB_PROP_MODE_REPLACE,
1929 drawable, reply->atom,
1930 XCB_ATOM_CARDINAL, 32, 1, &state);
1931 else
1932 check = xcb_delete_property_checked(conn, drawable, reply->atom);
1933
1934 xcb_discard_reply(conn, check.sequence);
1935 free(reply);
1936 }
1937
1938 /**
1939 * Create the swapchain.
1940 *
1941 * Supports immediate, fifo and mailbox presentation mode.
1942 *
1943 */
1944 static VkResult
x11_surface_create_swapchain(VkIcdSurfaceBase * icd_surface,VkDevice device,struct wsi_device * wsi_device,const VkSwapchainCreateInfoKHR * pCreateInfo,const VkAllocationCallbacks * pAllocator,struct wsi_swapchain ** swapchain_out)1945 x11_surface_create_swapchain(VkIcdSurfaceBase *icd_surface,
1946 VkDevice device,
1947 struct wsi_device *wsi_device,
1948 const VkSwapchainCreateInfoKHR *pCreateInfo,
1949 const VkAllocationCallbacks* pAllocator,
1950 struct wsi_swapchain **swapchain_out)
1951 {
1952 struct x11_swapchain *chain;
1953 xcb_void_cookie_t cookie;
1954 VkResult result;
1955 VkPresentModeKHR present_mode = wsi_swapchain_get_present_mode(wsi_device, pCreateInfo);
1956
1957 assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
1958
1959 /* Get xcb connection from the icd_surface and from that our internal struct
1960 * representing it.
1961 */
1962 xcb_connection_t *conn = x11_surface_get_connection(icd_surface);
1963 struct wsi_x11_connection *wsi_conn =
1964 wsi_x11_get_connection(wsi_device, conn);
1965 if (!wsi_conn)
1966 return VK_ERROR_OUT_OF_HOST_MEMORY;
1967
1968 /* Get number of images in our swapchain. This count depends on:
1969 * - requested minimal image count
1970 * - device characteristics
1971 * - presentation mode.
1972 */
1973 unsigned num_images = pCreateInfo->minImageCount;
1974 if (wsi_device->x11.strict_imageCount)
1975 num_images = pCreateInfo->minImageCount;
1976 else if (x11_needs_wait_for_fences(wsi_device, wsi_conn, present_mode))
1977 num_images = MAX2(num_images, 5);
1978 else if (wsi_device->x11.ensure_minImageCount)
1979 num_images = MAX2(num_images, x11_get_min_image_count(wsi_device));
1980
1981 /* Check that we have a window up-front. It is an error to not have one. */
1982 xcb_window_t window = x11_surface_get_window(icd_surface);
1983
1984 /* Get the geometry of that window. The bit depth of the swapchain will be fitted and the
1985 * chain's images extents should fit it for performance-optimizing flips.
1986 */
1987 xcb_get_geometry_reply_t *geometry =
1988 xcb_get_geometry_reply(conn, xcb_get_geometry(conn, window), NULL);
1989 if (geometry == NULL)
1990 return VK_ERROR_SURFACE_LOST_KHR;
1991 const uint32_t bit_depth = geometry->depth;
1992 const uint16_t cur_width = geometry->width;
1993 const uint16_t cur_height = geometry->height;
1994 free(geometry);
1995
1996 /* Allocate the actual swapchain. The size depends on image count. */
1997 size_t size = sizeof(*chain) + num_images * sizeof(chain->images[0]);
1998 chain = vk_zalloc(pAllocator, size, 8,
1999 VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
2000 if (chain == NULL)
2001 return VK_ERROR_OUT_OF_HOST_MEMORY;
2002
2003 /* When our local device is not compatible with the DRI3 device provided by
2004 * the X server we assume this is a PRIME system.
2005 */
2006 bool use_buffer_blit = false;
2007 if (!wsi_device->sw)
2008 if (!wsi_x11_check_dri3_compatible(wsi_device, conn))
2009 use_buffer_blit = true;
2010
2011 result = wsi_swapchain_init(wsi_device, &chain->base, device,
2012 pCreateInfo, pAllocator, use_buffer_blit);
2013 if (result != VK_SUCCESS)
2014 goto fail_alloc;
2015
2016 chain->base.destroy = x11_swapchain_destroy;
2017 chain->base.get_wsi_image = x11_get_wsi_image;
2018 chain->base.acquire_next_image = x11_acquire_next_image;
2019 chain->base.queue_present = x11_queue_present;
2020 chain->base.present_mode = present_mode;
2021 chain->base.image_count = num_images;
2022 chain->conn = conn;
2023 chain->window = window;
2024 chain->depth = bit_depth;
2025 chain->extent = pCreateInfo->imageExtent;
2026 chain->send_sbc = 0;
2027 chain->sent_image_count = 0;
2028 chain->last_present_msc = 0;
2029 chain->has_acquire_queue = false;
2030 chain->has_present_queue = false;
2031 chain->status = VK_SUCCESS;
2032 chain->has_dri3_modifiers = wsi_conn->has_dri3_modifiers;
2033 chain->has_mit_shm = wsi_conn->has_mit_shm;
2034
2035 /* When images in the swapchain don't fit the window, X can still present them, but it won't
2036 * happen by flip, only by copy. So this is a suboptimal copy, because if the client would change
2037 * the chain extents X may be able to flip
2038 */
2039 if (chain->extent.width != cur_width || chain->extent.height != cur_height)
2040 chain->status = VK_SUBOPTIMAL_KHR;
2041
2042 /* On a new swapchain this helper variable is set to false. Once we present it will have an
2043 * impact once we ever do at least one flip and go back to copying afterwards. It is presumed
2044 * that in this case here is a high likelihood X could do flips again if the client reallocates a
2045 * new swapchain.
2046 *
2047 * Note that we used to inheritted this property from 'pCreateInfo->oldSwapchain'. But when it
2048 * was true, and when the next present was completed with copying, we would return
2049 * VK_SUBOPTIMAL_KHR and hint the app to reallocate again for no good reason. If all following
2050 * presents on the surface were completed with copying because of some surface state change, we
2051 * would always return VK_SUBOPTIMAL_KHR no matter how many times the app had reallocated.
2052 *
2053 * Note also that is is questionable in general if that mechanism is really useful. It ist not
2054 * clear why on a change from flipping to copying we can assume a reallocation has a high chance
2055 * of making flips work again per se. In other words it is not clear why there is need for
2056 * another way to inform clients about suboptimal copies besides forwarding the
2057 * 'PresentOptionSuboptimal' complete mode.
2058 */
2059 chain->copy_is_suboptimal = false;
2060
2061 /* For our swapchain we need to listen to following Present extension events:
2062 * - Configure: Window dimensions changed. Images in the swapchain might need
2063 * to be reallocated.
2064 * - Complete: An image from our swapchain was presented on the output.
2065 * - Idle: An image from our swapchain is not anymore accessed by the X
2066 * server and can be reused.
2067 */
2068 chain->event_id = xcb_generate_id(chain->conn);
2069 xcb_present_select_input(chain->conn, chain->event_id, chain->window,
2070 XCB_PRESENT_EVENT_MASK_CONFIGURE_NOTIFY |
2071 XCB_PRESENT_EVENT_MASK_COMPLETE_NOTIFY |
2072 XCB_PRESENT_EVENT_MASK_IDLE_NOTIFY);
2073
2074 /* Create an XCB event queue to hold present events outside of the usual
2075 * application event queue
2076 */
2077 chain->special_event =
2078 xcb_register_for_special_xge(chain->conn, &xcb_present_id,
2079 chain->event_id, NULL);
2080
2081 /* Create the graphics context. */
2082 chain->gc = xcb_generate_id(chain->conn);
2083 if (!chain->gc) {
2084 /* FINISHME: Choose a better error. */
2085 result = VK_ERROR_OUT_OF_HOST_MEMORY;
2086 goto fail_register;
2087 }
2088
2089 cookie = xcb_create_gc(chain->conn,
2090 chain->gc,
2091 chain->window,
2092 XCB_GC_GRAPHICS_EXPOSURES,
2093 (uint32_t []) { 0 });
2094 xcb_discard_reply(chain->conn, cookie.sequence);
2095
2096 uint64_t *modifiers[2] = {NULL, NULL};
2097 uint32_t num_modifiers[2] = {0, 0};
2098 uint32_t num_tranches = 0;
2099 if (wsi_device->supports_modifiers)
2100 wsi_x11_get_dri3_modifiers(wsi_conn, conn, window, chain->depth, 32,
2101 pCreateInfo->compositeAlpha,
2102 modifiers, num_modifiers, &num_tranches,
2103 pAllocator);
2104
2105 if (wsi_device->sw) {
2106 result = wsi_configure_cpu_image(&chain->base, pCreateInfo,
2107 chain->has_mit_shm ? &alloc_shm : NULL,
2108 &chain->base.image_info);
2109 } else if (chain->base.use_buffer_blit) {
2110 bool use_modifier = num_tranches > 0;
2111 result = wsi_configure_prime_image(&chain->base, pCreateInfo,
2112 use_modifier,
2113 &chain->base.image_info);
2114 } else {
2115 result = wsi_configure_native_image(&chain->base, pCreateInfo,
2116 num_tranches, num_modifiers,
2117 (const uint64_t *const *)modifiers,
2118 &chain->base.image_info);
2119 }
2120 if (result != VK_SUCCESS)
2121 goto fail_modifiers;
2122
2123 uint32_t image = 0;
2124 for (; image < chain->base.image_count; image++) {
2125 result = x11_image_init(device, chain, pCreateInfo, pAllocator,
2126 &chain->images[image]);
2127 if (result != VK_SUCCESS)
2128 goto fail_init_images;
2129 }
2130
2131 /* Initialize queues for images in our swapchain. Possible queues are:
2132 * - Present queue: for images sent to the X server but not yet presented.
2133 * - Acquire queue: for images already presented but not yet released by the
2134 * X server.
2135 *
2136 * In general queues are not used on software drivers, otherwise which queues
2137 * are used depends on our presentation mode:
2138 * - Fifo: present and acquire
2139 * - Mailbox: present only
2140 * - Immediate: present when we wait on fences before buffer submission (Xwayland)
2141 */
2142 if ((chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR ||
2143 chain->base.present_mode == VK_PRESENT_MODE_FIFO_RELAXED_KHR ||
2144 x11_needs_wait_for_fences(wsi_device, wsi_conn,
2145 chain->base.present_mode)) &&
2146 !chain->base.wsi->sw) {
2147 chain->has_present_queue = true;
2148
2149 /* The queues have a length of base.image_count + 1 because we will
2150 * occasionally use UINT32_MAX to signal the other thread that an error
2151 * has occurred and we don't want an overflow.
2152 */
2153 int ret;
2154 ret = wsi_queue_init(&chain->present_queue, chain->base.image_count + 1);
2155 if (ret) {
2156 goto fail_init_images;
2157 }
2158
2159 if (chain->base.present_mode == VK_PRESENT_MODE_FIFO_KHR ||
2160 chain->base.present_mode == VK_PRESENT_MODE_FIFO_RELAXED_KHR) {
2161 chain->has_acquire_queue = true;
2162
2163 ret = wsi_queue_init(&chain->acquire_queue, chain->base.image_count + 1);
2164 if (ret) {
2165 wsi_queue_destroy(&chain->present_queue);
2166 goto fail_init_images;
2167 }
2168
2169 for (unsigned i = 0; i < chain->base.image_count; i++)
2170 wsi_queue_push(&chain->acquire_queue, i);
2171 }
2172
2173 ret = pthread_create(&chain->queue_manager, NULL,
2174 x11_manage_fifo_queues, chain);
2175 if (ret) {
2176 wsi_queue_destroy(&chain->present_queue);
2177 if (chain->has_acquire_queue)
2178 wsi_queue_destroy(&chain->acquire_queue);
2179
2180 goto fail_init_images;
2181 }
2182 }
2183
2184 assert(chain->has_present_queue || !chain->has_acquire_queue);
2185
2186 for (int i = 0; i < ARRAY_SIZE(modifiers); i++)
2187 vk_free(pAllocator, modifiers[i]);
2188
2189 /* It is safe to set it here as only one swapchain can be associated with
2190 * the window, and swapchain creation does the association. At this point
2191 * we know the creation is going to succeed. */
2192 wsi_x11_set_adaptive_sync_property(conn, window,
2193 wsi_device->enable_adaptive_sync);
2194
2195 *swapchain_out = &chain->base;
2196
2197 return VK_SUCCESS;
2198
2199 fail_init_images:
2200 for (uint32_t j = 0; j < image; j++)
2201 x11_image_finish(chain, pAllocator, &chain->images[j]);
2202
2203 wsi_destroy_image_info(&chain->base, &chain->base.image_info);
2204
2205 fail_modifiers:
2206 for (int i = 0; i < ARRAY_SIZE(modifiers); i++)
2207 vk_free(pAllocator, modifiers[i]);
2208
2209 fail_register:
2210 xcb_unregister_for_special_event(chain->conn, chain->special_event);
2211
2212 wsi_swapchain_finish(&chain->base);
2213
2214 fail_alloc:
2215 vk_free(pAllocator, chain);
2216
2217 return result;
2218 }
2219
2220 VkResult
wsi_x11_init_wsi(struct wsi_device * wsi_device,const VkAllocationCallbacks * alloc,const struct driOptionCache * dri_options)2221 wsi_x11_init_wsi(struct wsi_device *wsi_device,
2222 const VkAllocationCallbacks *alloc,
2223 const struct driOptionCache *dri_options)
2224 {
2225 struct wsi_x11 *wsi;
2226 VkResult result;
2227
2228 wsi = vk_alloc(alloc, sizeof(*wsi), 8,
2229 VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
2230 if (!wsi) {
2231 result = VK_ERROR_OUT_OF_HOST_MEMORY;
2232 goto fail;
2233 }
2234
2235 int ret = pthread_mutex_init(&wsi->mutex, NULL);
2236 if (ret != 0) {
2237 if (ret == ENOMEM) {
2238 result = VK_ERROR_OUT_OF_HOST_MEMORY;
2239 } else {
2240 /* FINISHME: Choose a better error. */
2241 result = VK_ERROR_OUT_OF_HOST_MEMORY;
2242 }
2243
2244 goto fail_alloc;
2245 }
2246
2247 wsi->connections = _mesa_hash_table_create(NULL, _mesa_hash_pointer,
2248 _mesa_key_pointer_equal);
2249 if (!wsi->connections) {
2250 result = VK_ERROR_OUT_OF_HOST_MEMORY;
2251 goto fail_mutex;
2252 }
2253
2254 if (dri_options) {
2255 if (driCheckOption(dri_options, "vk_x11_override_min_image_count", DRI_INT)) {
2256 wsi_device->x11.override_minImageCount =
2257 driQueryOptioni(dri_options, "vk_x11_override_min_image_count");
2258 }
2259 if (driCheckOption(dri_options, "vk_x11_strict_image_count", DRI_BOOL)) {
2260 wsi_device->x11.strict_imageCount =
2261 driQueryOptionb(dri_options, "vk_x11_strict_image_count");
2262 }
2263 if (driCheckOption(dri_options, "vk_x11_ensure_min_image_count", DRI_BOOL)) {
2264 wsi_device->x11.ensure_minImageCount =
2265 driQueryOptionb(dri_options, "vk_x11_ensure_min_image_count");
2266 }
2267 wsi_device->x11.xwaylandWaitReady = true;
2268 if (driCheckOption(dri_options, "vk_xwayland_wait_ready", DRI_BOOL)) {
2269 wsi_device->x11.xwaylandWaitReady =
2270 driQueryOptionb(dri_options, "vk_xwayland_wait_ready");
2271 }
2272 }
2273
2274 wsi->base.get_support = x11_surface_get_support;
2275 wsi->base.get_capabilities2 = x11_surface_get_capabilities2;
2276 wsi->base.get_formats = x11_surface_get_formats;
2277 wsi->base.get_formats2 = x11_surface_get_formats2;
2278 wsi->base.get_present_modes = x11_surface_get_present_modes;
2279 wsi->base.get_present_rectangles = x11_surface_get_present_rectangles;
2280 wsi->base.create_swapchain = x11_surface_create_swapchain;
2281
2282 wsi_device->wsi[VK_ICD_WSI_PLATFORM_XCB] = &wsi->base;
2283 wsi_device->wsi[VK_ICD_WSI_PLATFORM_XLIB] = &wsi->base;
2284
2285 return VK_SUCCESS;
2286
2287 fail_mutex:
2288 pthread_mutex_destroy(&wsi->mutex);
2289 fail_alloc:
2290 vk_free(alloc, wsi);
2291 fail:
2292 wsi_device->wsi[VK_ICD_WSI_PLATFORM_XCB] = NULL;
2293 wsi_device->wsi[VK_ICD_WSI_PLATFORM_XLIB] = NULL;
2294
2295 return result;
2296 }
2297
2298 void
wsi_x11_finish_wsi(struct wsi_device * wsi_device,const VkAllocationCallbacks * alloc)2299 wsi_x11_finish_wsi(struct wsi_device *wsi_device,
2300 const VkAllocationCallbacks *alloc)
2301 {
2302 struct wsi_x11 *wsi =
2303 (struct wsi_x11 *)wsi_device->wsi[VK_ICD_WSI_PLATFORM_XCB];
2304
2305 if (wsi) {
2306 hash_table_foreach(wsi->connections, entry)
2307 wsi_x11_connection_destroy(wsi_device, entry->data);
2308
2309 _mesa_hash_table_destroy(wsi->connections, NULL);
2310
2311 pthread_mutex_destroy(&wsi->mutex);
2312
2313 vk_free(alloc, wsi);
2314 }
2315 }
2316