projects / mesa.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
vulkan/wsi: Store the instance allocator in wsi_device
[mesa.git] / src / vulkan / wsi / wsi_common_display.c
1 /*
2 * Copyright © 2017 Keith Packard
3 *
4 * Permission to use, copy, modify, distribute, and sell this software and its
5 * documentation for any purpose is hereby granted without fee, provided that
6 * the above copyright notice appear in all copies and that both that copyright
7 * notice and this permission notice appear in supporting documentation, and
8 * that the name of the copyright holders not be used in advertising or
9 * publicity pertaining to distribution of the software without specific,
10 * written prior permission. The copyright holders make no representations
11 * about the suitability of this software for any purpose. It is provided "as
12 * is" without express or implied warranty.
13 *
14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
20 * OF THIS SOFTWARE.
21 */
22
23 #include "util/macros.h"
24 #include <stdlib.h>
25 #include <stdio.h>
26 #include <unistd.h>
27 #include <errno.h>
28 #include <string.h>
29 #include <fcntl.h>
30 #include <poll.h>
31 #include <stdbool.h>
32 #include <math.h>
33 #include <xf86drm.h>
34 #include <xf86drmMode.h>
35 #include <drm_fourcc.h>
36 #ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
37 #include <xcb/randr.h>
38 #include <X11/Xlib-xcb.h>
39 #endif
40 #include "util/hash_table.h"
41 #include "util/list.h"
42
43 #include "vk_util.h"
44 #include "wsi_common_private.h"
45 #include "wsi_common_display.h"
46 #include "wsi_common_queue.h"
47
48 #if 0
49 #define wsi_display_debug(...) fprintf(stderr, __VA_ARGS__)
50 #define wsi_display_debug_code(...) __VA_ARGS__
51 #else
52 #define wsi_display_debug(...)
53 #define wsi_display_debug_code(...)
54 #endif
55
56 /* These have lifetime equal to the instance, so they effectively
57 * never go away. This means we must keep track of them separately
58 * from all other resources.
59 */
60 typedef struct wsi_display_mode {
61 struct list_head list;
62 struct wsi_display_connector *connector;
63 bool valid; /* was found in most recent poll */
64 bool preferred;
65 uint32_t clock; /* in kHz */
66 uint16_t hdisplay, hsync_start, hsync_end, htotal, hskew;
67 uint16_t vdisplay, vsync_start, vsync_end, vtotal, vscan;
68 uint32_t flags;
69 } wsi_display_mode;
70
71 typedef struct wsi_display_connector {
72 struct list_head list;
73 struct wsi_display *wsi;
74 uint32_t id;
75 uint32_t crtc_id;
76 char *name;
77 bool connected;
78 bool active;
79 struct list_head display_modes;
80 wsi_display_mode *current_mode;
81 drmModeModeInfo current_drm_mode;
82 uint32_t dpms_property;
83 #ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
84 xcb_randr_output_t output;
85 #endif
86 } wsi_display_connector;
87
88 struct wsi_display {
89 struct wsi_interface base;
90
91 const VkAllocationCallbacks *alloc;
92
93 int fd;
94
95 pthread_mutex_t wait_mutex;
96 pthread_cond_t wait_cond;
97 pthread_t wait_thread;
98
99 struct list_head connectors;
100 };
101
102 #define wsi_for_each_display_mode(_mode, _conn) \
103 list_for_each_entry_safe(struct wsi_display_mode, _mode, \
104 &(_conn)->display_modes, list)
105
106 #define wsi_for_each_connector(_conn, _dev) \
107 list_for_each_entry_safe(struct wsi_display_connector, _conn, \
108 &(_dev)->connectors, list)
109
110 enum wsi_image_state {
111 WSI_IMAGE_IDLE,
112 WSI_IMAGE_DRAWING,
113 WSI_IMAGE_QUEUED,
114 WSI_IMAGE_FLIPPING,
115 WSI_IMAGE_DISPLAYING
116 };
117
118 struct wsi_display_image {
119 struct wsi_image base;
120 struct wsi_display_swapchain *chain;
121 enum wsi_image_state state;
122 uint32_t fb_id;
123 uint32_t buffer[4];
124 uint64_t flip_sequence;
125 };
126
127 struct wsi_display_swapchain {
128 struct wsi_swapchain base;
129 struct wsi_display *wsi;
130 VkIcdSurfaceDisplay *surface;
131 uint64_t flip_sequence;
132 VkResult status;
133 struct wsi_display_image images[0];
134 };
135
136 struct wsi_display_fence {
137 struct wsi_fence base;
138 bool event_received;
139 bool destroyed;
140 uint64_t sequence;
141 };
142
143 static uint64_t fence_sequence;
144
145 ICD_DEFINE_NONDISP_HANDLE_CASTS(wsi_display_mode, VkDisplayModeKHR)
146 ICD_DEFINE_NONDISP_HANDLE_CASTS(wsi_display_connector, VkDisplayKHR)
147
148 static bool
149 wsi_display_mode_matches_drm(wsi_display_mode *wsi,
150 drmModeModeInfoPtr drm)
151 {
152 return wsi->clock == drm->clock &&
153 wsi->hdisplay == drm->hdisplay &&
154 wsi->hsync_start == drm->hsync_start &&
155 wsi->hsync_end == drm->hsync_end &&
156 wsi->htotal == drm->htotal &&
157 wsi->hskew == drm->hskew &&
158 wsi->vdisplay == drm->vdisplay &&
159 wsi->vsync_start == drm->vsync_start &&
160 wsi->vsync_end == drm->vsync_end &&
161 wsi->vtotal == drm->vtotal &&
162 MAX2(wsi->vscan, 1) == MAX2(drm->vscan, 1) &&
163 wsi->flags == drm->flags;
164 }
165
166 static double
167 wsi_display_mode_refresh(struct wsi_display_mode *wsi)
168 {
169 return (double) wsi->clock * 1000.0 / ((double) wsi->htotal *
170 (double) wsi->vtotal *
171 (double) MAX2(wsi->vscan, 1));
172 }
173
174 static uint64_t wsi_get_current_monotonic(void)
175 {
176 struct timespec tv;
177
178 clock_gettime(CLOCK_MONOTONIC, &tv);
179 return tv.tv_nsec + tv.tv_sec*1000000000ull;
180 }
181
182 static uint64_t wsi_rel_to_abs_time(uint64_t rel_time)
183 {
184 uint64_t current_time = wsi_get_current_monotonic();
185
186 /* check for overflow */
187 if (rel_time > UINT64_MAX - current_time)
188 return UINT64_MAX;
189
190 return current_time + rel_time;
191 }
192
193 static struct wsi_display_mode *
194 wsi_display_find_drm_mode(struct wsi_device *wsi_device,
195 struct wsi_display_connector *connector,
196 drmModeModeInfoPtr mode)
197 {
198 wsi_for_each_display_mode(display_mode, connector) {
199 if (wsi_display_mode_matches_drm(display_mode, mode))
200 return display_mode;
201 }
202 return NULL;
203 }
204
205 static void
206 wsi_display_invalidate_connector_modes(struct wsi_device *wsi_device,
207 struct wsi_display_connector *connector)
208 {
209 wsi_for_each_display_mode(display_mode, connector) {
210 display_mode->valid = false;
211 }
212 }
213
214 static VkResult
215 wsi_display_register_drm_mode(struct wsi_device *wsi_device,
216 struct wsi_display_connector *connector,
217 drmModeModeInfoPtr drm_mode)
218 {
219 struct wsi_display *wsi =
220 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
221 struct wsi_display_mode *display_mode =
222 wsi_display_find_drm_mode(wsi_device, connector, drm_mode);
223
224 if (display_mode) {
225 display_mode->valid = true;
226 return VK_SUCCESS;
227 }
228
229 display_mode = vk_zalloc(wsi->alloc, sizeof (struct wsi_display_mode),
230 8, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
231 if (!display_mode)
232 return VK_ERROR_OUT_OF_HOST_MEMORY;
233
234 display_mode->connector = connector;
235 display_mode->valid = true;
236 display_mode->preferred = (drm_mode->type & DRM_MODE_TYPE_PREFERRED) != 0;
237 display_mode->clock = drm_mode->clock; /* kHz */
238 display_mode->hdisplay = drm_mode->hdisplay;
239 display_mode->hsync_start = drm_mode->hsync_start;
240 display_mode->hsync_end = drm_mode->hsync_end;
241 display_mode->htotal = drm_mode->htotal;
242 display_mode->hskew = drm_mode->hskew;
243 display_mode->vdisplay = drm_mode->vdisplay;
244 display_mode->vsync_start = drm_mode->vsync_start;
245 display_mode->vsync_end = drm_mode->vsync_end;
246 display_mode->vtotal = drm_mode->vtotal;
247 display_mode->vscan = drm_mode->vscan;
248 display_mode->flags = drm_mode->flags;
249
250 list_addtail(&display_mode->list, &connector->display_modes);
251 return VK_SUCCESS;
252 }
253
254 /*
255 * Update our information about a specific connector
256 */
257
258 static struct wsi_display_connector *
259 wsi_display_find_connector(struct wsi_device *wsi_device,
260 uint32_t connector_id)
261 {
262 struct wsi_display *wsi =
263 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
264
265 wsi_for_each_connector(connector, wsi) {
266 if (connector->id == connector_id)
267 return connector;
268 }
269
270 return NULL;
271 }
272
273 static struct wsi_display_connector *
274 wsi_display_alloc_connector(struct wsi_display *wsi,
275 uint32_t connector_id)
276 {
277 struct wsi_display_connector *connector =
278 vk_zalloc(wsi->alloc, sizeof (struct wsi_display_connector),
279 8, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
280
281 connector->id = connector_id;
282 connector->wsi = wsi;
283 connector->active = false;
284 /* XXX use EDID name */
285 connector->name = "monitor";
286 list_inithead(&connector->display_modes);
287 return connector;
288 }
289
290 static struct wsi_display_connector *
291 wsi_display_get_connector(struct wsi_device *wsi_device,
292 uint32_t connector_id)
293 {
294 struct wsi_display *wsi =
295 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
296
297 if (wsi->fd < 0)
298 return NULL;
299
300 drmModeConnectorPtr drm_connector =
301 drmModeGetConnector(wsi->fd, connector_id);
302
303 if (!drm_connector)
304 return NULL;
305
306 struct wsi_display_connector *connector =
307 wsi_display_find_connector(wsi_device, connector_id);
308
309 if (!connector) {
310 connector = wsi_display_alloc_connector(wsi, connector_id);
311 if (!connector) {
312 drmModeFreeConnector(drm_connector);
313 return NULL;
314 }
315 list_addtail(&connector->list, &wsi->connectors);
316 }
317
318 connector->connected = drm_connector->connection != DRM_MODE_DISCONNECTED;
319
320 /* Look for a DPMS property if we haven't already found one */
321 for (int p = 0; connector->dpms_property == 0 &&
322 p < drm_connector->count_props; p++)
323 {
324 drmModePropertyPtr prop = drmModeGetProperty(wsi->fd,
325 drm_connector->props[p]);
326 if (!prop)
327 continue;
328 if (prop->flags & DRM_MODE_PROP_ENUM) {
329 if (!strcmp(prop->name, "DPMS"))
330 connector->dpms_property = drm_connector->props[p];
331 }
332 drmModeFreeProperty(prop);
333 }
334
335 /* Mark all connector modes as invalid */
336 wsi_display_invalidate_connector_modes(wsi_device, connector);
337
338 /*
339 * List current modes, adding new ones and marking existing ones as
340 * valid
341 */
342 for (int m = 0; m < drm_connector->count_modes; m++) {
343 VkResult result = wsi_display_register_drm_mode(wsi_device,
344 connector,
345 &drm_connector->modes[m]);
346 if (result != VK_SUCCESS) {
347 drmModeFreeConnector(drm_connector);
348 return NULL;
349 }
350 }
351
352 drmModeFreeConnector(drm_connector);
353
354 return connector;
355 }
356
357 #define MM_PER_PIXEL (1.0/96.0 * 25.4)
358
359 static uint32_t
360 mode_size(struct wsi_display_mode *mode)
361 {
362 /* fortunately, these are both uint16_t, so this is easy */
363 return (uint32_t) mode->hdisplay * (uint32_t) mode->vdisplay;
364 }
365
366 static void
367 wsi_display_fill_in_display_properties(struct wsi_device *wsi_device,
368 struct wsi_display_connector *connector,
369 VkDisplayProperties2KHR *properties2)
370 {
371 assert(properties2->sType == VK_STRUCTURE_TYPE_DISPLAY_PROPERTIES_2_KHR);
372 VkDisplayPropertiesKHR *properties = &properties2->displayProperties;
373
374 properties->display = wsi_display_connector_to_handle(connector);
375 properties->displayName = connector->name;
376
377 /* Find the first preferred mode and assume that's the physical
378 * resolution. If there isn't a preferred mode, find the largest mode and
379 * use that.
380 */
381
382 struct wsi_display_mode *preferred_mode = NULL, *largest_mode = NULL;
383 wsi_for_each_display_mode(display_mode, connector) {
384 if (!display_mode->valid)
385 continue;
386 if (display_mode->preferred) {
387 preferred_mode = display_mode;
388 break;
389 }
390 if (largest_mode == NULL ||
391 mode_size(display_mode) > mode_size(largest_mode))
392 {
393 largest_mode = display_mode;
394 }
395 }
396
397 if (preferred_mode) {
398 properties->physicalResolution.width = preferred_mode->hdisplay;
399 properties->physicalResolution.height = preferred_mode->vdisplay;
400 } else if (largest_mode) {
401 properties->physicalResolution.width = largest_mode->hdisplay;
402 properties->physicalResolution.height = largest_mode->vdisplay;
403 } else {
404 properties->physicalResolution.width = 1024;
405 properties->physicalResolution.height = 768;
406 }
407
408 /* Make up physical size based on 96dpi */
409 properties->physicalDimensions.width =
410 floor(properties->physicalResolution.width * MM_PER_PIXEL + 0.5);
411 properties->physicalDimensions.height =
412 floor(properties->physicalResolution.height * MM_PER_PIXEL + 0.5);
413
414 properties->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
415 properties->planeReorderPossible = VK_FALSE;
416 properties->persistentContent = VK_FALSE;
417 }
418
419 /*
420 * Implement vkGetPhysicalDeviceDisplayPropertiesKHR (VK_KHR_display)
421 */
422 VkResult
423 wsi_display_get_physical_device_display_properties(
424 VkPhysicalDevice physical_device,
425 struct wsi_device *wsi_device,
426 uint32_t *property_count,
427 VkDisplayPropertiesKHR *properties)
428 {
429 struct wsi_display *wsi =
430 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
431
432 if (properties == NULL) {
433 return wsi_display_get_physical_device_display_properties2(
434 physical_device, wsi_device, property_count, NULL);
435 } else {
436 /* If we're actually returning properties, allocate a temporary array of
437 * VkDisplayProperties2KHR structs, call properties2 to fill them out,
438 * and then copy them to the client. This seems a bit expensive but
439 * wsi_display_get_physical_device_display_properties2() calls
440 * drmModeGetResources() which does an ioctl and then a bunch of
441 * allocations so this should get lost in the noise.
442 */
443 VkDisplayProperties2KHR *props2 =
444 vk_zalloc(wsi->alloc, sizeof(*props2) * *property_count, 8,
445 VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
446 if (props2 == NULL)
447 return VK_ERROR_OUT_OF_HOST_MEMORY;
448
449 for (uint32_t i = 0; i < *property_count; i++)
450 props2[i].sType = VK_STRUCTURE_TYPE_DISPLAY_PROPERTIES_2_KHR;
451
452 VkResult result = wsi_display_get_physical_device_display_properties2(
453 physical_device, wsi_device, property_count, props2);
454
455 if (result == VK_SUCCESS || result == VK_INCOMPLETE) {
456 for (uint32_t i = 0; i < *property_count; i++)
457 properties[i] = props2[i].displayProperties;
458 }
459
460 vk_free(wsi->alloc, props2);
461
462 return result;
463 }
464 }
465
466 VkResult
467 wsi_display_get_physical_device_display_properties2(
468 VkPhysicalDevice physical_device,
469 struct wsi_device *wsi_device,
470 uint32_t *property_count,
471 VkDisplayProperties2KHR *properties)
472 {
473 struct wsi_display *wsi =
474 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
475
476 if (wsi->fd < 0)
477 goto bail;
478
479 drmModeResPtr mode_res = drmModeGetResources(wsi->fd);
480
481 if (!mode_res)
482 goto bail;
483
484 VK_OUTARRAY_MAKE(conn, properties, property_count);
485
486 /* Get current information */
487
488 for (int c = 0; c < mode_res->count_connectors; c++) {
489 struct wsi_display_connector *connector =
490 wsi_display_get_connector(wsi_device, mode_res->connectors[c]);
491
492 if (!connector) {
493 drmModeFreeResources(mode_res);
494 return VK_ERROR_OUT_OF_HOST_MEMORY;
495 }
496
497 if (connector->connected) {
498 vk_outarray_append(&conn, prop) {
499 wsi_display_fill_in_display_properties(wsi_device,
500 connector,
501 prop);
502 }
503 }
504 }
505
506 drmModeFreeResources(mode_res);
507
508 return vk_outarray_status(&conn);
509
510 bail:
511 *property_count = 0;
512 return VK_SUCCESS;
513 }
514
515 /*
516 * Implement vkGetPhysicalDeviceDisplayPlanePropertiesKHR (VK_KHR_display
517 */
518 static void
519 wsi_display_fill_in_display_plane_properties(
520 struct wsi_device *wsi_device,
521 struct wsi_display_connector *connector,
522 VkDisplayPlaneProperties2KHR *properties)
523 {
524 assert(properties->sType == VK_STRUCTURE_TYPE_DISPLAY_PLANE_PROPERTIES_2_KHR);
525 VkDisplayPlanePropertiesKHR *prop = &properties->displayPlaneProperties;
526
527 if (connector && connector->active) {
528 prop->currentDisplay = wsi_display_connector_to_handle(connector);
529 prop->currentStackIndex = 0;
530 } else {
531 prop->currentDisplay = VK_NULL_HANDLE;
532 prop->currentStackIndex = 0;
533 }
534 }
535
536 VkResult
537 wsi_display_get_physical_device_display_plane_properties(
538 VkPhysicalDevice physical_device,
539 struct wsi_device *wsi_device,
540 uint32_t *property_count,
541 VkDisplayPlanePropertiesKHR *properties)
542 {
543 struct wsi_display *wsi =
544 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
545
546 VK_OUTARRAY_MAKE(conn, properties, property_count);
547
548 wsi_for_each_connector(connector, wsi) {
549 vk_outarray_append(&conn, prop) {
550 VkDisplayPlaneProperties2KHR prop2 = {
551 .sType = VK_STRUCTURE_TYPE_DISPLAY_PLANE_PROPERTIES_2_KHR,
552 };
553 wsi_display_fill_in_display_plane_properties(wsi_device, connector,
554 &prop2);
555 *prop = prop2.displayPlaneProperties;
556 }
557 }
558 return vk_outarray_status(&conn);
559 }
560
561 VkResult
562 wsi_display_get_physical_device_display_plane_properties2(
563 VkPhysicalDevice physical_device,
564 struct wsi_device *wsi_device,
565 uint32_t *property_count,
566 VkDisplayPlaneProperties2KHR *properties)
567 {
568 struct wsi_display *wsi =
569 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
570
571 VK_OUTARRAY_MAKE(conn, properties, property_count);
572
573 wsi_for_each_connector(connector, wsi) {
574 vk_outarray_append(&conn, prop) {
575 wsi_display_fill_in_display_plane_properties(wsi_device, connector,
576 prop);
577 }
578 }
579 return vk_outarray_status(&conn);
580 }
581
582 /*
583 * Implement vkGetDisplayPlaneSupportedDisplaysKHR (VK_KHR_display)
584 */
585
586 VkResult
587 wsi_display_get_display_plane_supported_displays(
588 VkPhysicalDevice physical_device,
589 struct wsi_device *wsi_device,
590 uint32_t plane_index,
591 uint32_t *display_count,
592 VkDisplayKHR *displays)
593 {
594 struct wsi_display *wsi =
595 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
596
597 VK_OUTARRAY_MAKE(conn, displays, display_count);
598
599 int c = 0;
600
601 wsi_for_each_connector(connector, wsi) {
602 if (c == plane_index && connector->connected) {
603 vk_outarray_append(&conn, display) {
604 *display = wsi_display_connector_to_handle(connector);
605 }
606 }
607 c++;
608 }
609 return vk_outarray_status(&conn);
610 }
611
612 /*
613 * Implement vkGetDisplayModePropertiesKHR (VK_KHR_display)
614 */
615
616 static void
617 wsi_display_fill_in_display_mode_properties(
618 struct wsi_device *wsi_device,
619 struct wsi_display_mode *display_mode,
620 VkDisplayModeProperties2KHR *properties)
621 {
622 assert(properties->sType == VK_STRUCTURE_TYPE_DISPLAY_MODE_PROPERTIES_2_KHR);
623 VkDisplayModePropertiesKHR *prop = &properties->displayModeProperties;
624
625 prop->displayMode = wsi_display_mode_to_handle(display_mode);
626 prop->parameters.visibleRegion.width = display_mode->hdisplay;
627 prop->parameters.visibleRegion.height = display_mode->vdisplay;
628 prop->parameters.refreshRate =
629 (uint32_t) (wsi_display_mode_refresh(display_mode) * 1000 + 0.5);
630 }
631
632 VkResult
633 wsi_display_get_display_mode_properties(VkPhysicalDevice physical_device,
634 struct wsi_device *wsi_device,
635 VkDisplayKHR display,
636 uint32_t *property_count,
637 VkDisplayModePropertiesKHR *properties)
638 {
639 struct wsi_display_connector *connector =
640 wsi_display_connector_from_handle(display);
641
642 VK_OUTARRAY_MAKE(conn, properties, property_count);
643
644 wsi_for_each_display_mode(display_mode, connector) {
645 if (!display_mode->valid)
646 continue;
647
648 vk_outarray_append(&conn, prop) {
649 VkDisplayModeProperties2KHR prop2 = {
650 .sType = VK_STRUCTURE_TYPE_DISPLAY_MODE_PROPERTIES_2_KHR,
651 };
652 wsi_display_fill_in_display_mode_properties(wsi_device,
653 display_mode, &prop2);
654 *prop = prop2.displayModeProperties;
655 }
656 }
657 return vk_outarray_status(&conn);
658 }
659
660 VkResult
661 wsi_display_get_display_mode_properties2(VkPhysicalDevice physical_device,
662 struct wsi_device *wsi_device,
663 VkDisplayKHR display,
664 uint32_t *property_count,
665 VkDisplayModeProperties2KHR *properties)
666 {
667 struct wsi_display_connector *connector =
668 wsi_display_connector_from_handle(display);
669
670 VK_OUTARRAY_MAKE(conn, properties, property_count);
671
672 wsi_for_each_display_mode(display_mode, connector) {
673 if (!display_mode->valid)
674 continue;
675
676 vk_outarray_append(&conn, prop) {
677 wsi_display_fill_in_display_mode_properties(wsi_device,
678 display_mode, prop);
679 }
680 }
681 return vk_outarray_status(&conn);
682 }
683
684 static bool
685 wsi_display_mode_matches_vk(wsi_display_mode *wsi,
686 const VkDisplayModeParametersKHR *vk)
687 {
688 return (vk->visibleRegion.width == wsi->hdisplay &&
689 vk->visibleRegion.height == wsi->vdisplay &&
690 fabs(wsi_display_mode_refresh(wsi) * 1000.0 - vk->refreshRate) < 10);
691 }
692
693 /*
694 * Implement vkCreateDisplayModeKHR (VK_KHR_display)
695 */
696 VkResult
697 wsi_display_create_display_mode(VkPhysicalDevice physical_device,
698 struct wsi_device *wsi_device,
699 VkDisplayKHR display,
700 const VkDisplayModeCreateInfoKHR *create_info,
701 const VkAllocationCallbacks *allocator,
702 VkDisplayModeKHR *mode)
703 {
704 struct wsi_display_connector *connector =
705 wsi_display_connector_from_handle(display);
706
707 if (create_info->flags != 0)
708 return VK_ERROR_INITIALIZATION_FAILED;
709
710 /* Check and see if the requested mode happens to match an existing one and
711 * return that. This makes the conformance suite happy. Doing more than
712 * this would involve embedding the CVT function into the driver, which seems
713 * excessive.
714 */
715 wsi_for_each_display_mode(display_mode, connector) {
716 if (display_mode->valid) {
717 if (wsi_display_mode_matches_vk(display_mode, &create_info->parameters)) {
718 *mode = wsi_display_mode_to_handle(display_mode);
719 return VK_SUCCESS;
720 }
721 }
722 }
723 return VK_ERROR_INITIALIZATION_FAILED;
724 }
725
726 /*
727 * Implement vkGetDisplayPlaneCapabilities
728 */
729 VkResult
730 wsi_get_display_plane_capabilities(VkPhysicalDevice physical_device,
731 struct wsi_device *wsi_device,
732 VkDisplayModeKHR mode_khr,
733 uint32_t plane_index,
734 VkDisplayPlaneCapabilitiesKHR *capabilities)
735 {
736 struct wsi_display_mode *mode = wsi_display_mode_from_handle(mode_khr);
737
738 /* XXX use actual values */
739 capabilities->supportedAlpha = VK_DISPLAY_PLANE_ALPHA_OPAQUE_BIT_KHR;
740 capabilities->minSrcPosition.x = 0;
741 capabilities->minSrcPosition.y = 0;
742 capabilities->maxSrcPosition.x = 0;
743 capabilities->maxSrcPosition.y = 0;
744 capabilities->minSrcExtent.width = mode->hdisplay;
745 capabilities->minSrcExtent.height = mode->vdisplay;
746 capabilities->maxSrcExtent.width = mode->hdisplay;
747 capabilities->maxSrcExtent.height = mode->vdisplay;
748 capabilities->minDstPosition.x = 0;
749 capabilities->minDstPosition.y = 0;
750 capabilities->maxDstPosition.x = 0;
751 capabilities->maxDstPosition.y = 0;
752 capabilities->minDstExtent.width = mode->hdisplay;
753 capabilities->minDstExtent.height = mode->vdisplay;
754 capabilities->maxDstExtent.width = mode->hdisplay;
755 capabilities->maxDstExtent.height = mode->vdisplay;
756 return VK_SUCCESS;
757 }
758
759 VkResult
760 wsi_get_display_plane_capabilities2(
761 VkPhysicalDevice physical_device,
762 struct wsi_device *wsi_device,
763 const VkDisplayPlaneInfo2KHR *pDisplayPlaneInfo,
764 VkDisplayPlaneCapabilities2KHR *capabilities)
765 {
766 assert(capabilities->sType ==
767 VK_STRUCTURE_TYPE_DISPLAY_PLANE_CAPABILITIES_2_KHR);
768
769 return wsi_get_display_plane_capabilities(physical_device, wsi_device,
770 pDisplayPlaneInfo->mode,
771 pDisplayPlaneInfo->planeIndex,
772 &capabilities->capabilities);
773 }
774
775 VkResult
776 wsi_create_display_surface(VkInstance instance,
777 const VkAllocationCallbacks *allocator,
778 const VkDisplaySurfaceCreateInfoKHR *create_info,
779 VkSurfaceKHR *surface_khr)
780 {
781 VkIcdSurfaceDisplay *surface = vk_zalloc(allocator, sizeof *surface, 8,
782 VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
783
784 if (surface == NULL)
785 return VK_ERROR_OUT_OF_HOST_MEMORY;
786
787 surface->base.platform = VK_ICD_WSI_PLATFORM_DISPLAY;
788
789 surface->displayMode = create_info->displayMode;
790 surface->planeIndex = create_info->planeIndex;
791 surface->planeStackIndex = create_info->planeStackIndex;
792 surface->transform = create_info->transform;
793 surface->globalAlpha = create_info->globalAlpha;
794 surface->alphaMode = create_info->alphaMode;
795 surface->imageExtent = create_info->imageExtent;
796
797 *surface_khr = VkIcdSurfaceBase_to_handle(&surface->base);
798 return VK_SUCCESS;
799 }
800
801
802 static VkResult
803 wsi_display_surface_get_support(VkIcdSurfaceBase *surface,
804 struct wsi_device *wsi_device,
805 uint32_t queueFamilyIndex,
806 int local_fd,
807 VkBool32* pSupported)
808 {
809 *pSupported = VK_TRUE;
810 return VK_SUCCESS;
811 }
812
813 static VkResult
814 wsi_display_surface_get_capabilities(VkIcdSurfaceBase *surface_base,
815 VkSurfaceCapabilitiesKHR* caps)
816 {
817 VkIcdSurfaceDisplay *surface = (VkIcdSurfaceDisplay *) surface_base;
818 wsi_display_mode *mode = wsi_display_mode_from_handle(surface->displayMode);
819
820 caps->currentExtent.width = mode->hdisplay;
821 caps->currentExtent.height = mode->vdisplay;
822
823 /* XXX Figure out extents based on driver capabilities */
824 caps->maxImageExtent = caps->minImageExtent = caps->currentExtent;
825
826 caps->supportedCompositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
827
828 caps->minImageCount = 2;
829 caps->maxImageCount = 0;
830
831 caps->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
832 caps->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
833 caps->maxImageArrayLayers = 1;
834 caps->supportedUsageFlags =
835 VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
836 VK_IMAGE_USAGE_SAMPLED_BIT |
837 VK_IMAGE_USAGE_TRANSFER_DST_BIT |
838 VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
839
840 return VK_SUCCESS;
841 }
842
843 static VkResult
844 wsi_display_surface_get_surface_counters(
845 VkIcdSurfaceBase *surface_base,
846 VkSurfaceCounterFlagsEXT *counters)
847 {
848 *counters = VK_SURFACE_COUNTER_VBLANK_EXT;
849 return VK_SUCCESS;
850 }
851
852 static VkResult
853 wsi_display_surface_get_capabilities2(VkIcdSurfaceBase *icd_surface,
854 const void *info_next,
855 VkSurfaceCapabilities2KHR *caps)
856 {
857 assert(caps->sType == VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES_2_KHR);
858 VkResult result;
859
860 result = wsi_display_surface_get_capabilities(icd_surface,
861 &caps->surfaceCapabilities);
862 if (result != VK_SUCCESS)
863 return result;
864
865 struct wsi_surface_supported_counters *counters =
866 vk_find_struct( caps->pNext, WSI_SURFACE_SUPPORTED_COUNTERS_MESA);
867
868 if (counters) {
869 result = wsi_display_surface_get_surface_counters(
870 icd_surface,
871 &counters->supported_surface_counters);
872 }
873
874 return result;
875 }
876
877 static const struct {
878 VkFormat format;
879 uint32_t drm_format;
880 } available_surface_formats[] = {
881 { .format = VK_FORMAT_B8G8R8A8_SRGB, .drm_format = DRM_FORMAT_XRGB8888 },
882 { .format = VK_FORMAT_B8G8R8A8_UNORM, .drm_format = DRM_FORMAT_XRGB8888 },
883 };
884
885 static VkResult
886 wsi_display_surface_get_formats(VkIcdSurfaceBase *icd_surface,
887 struct wsi_device *wsi_device,
888 uint32_t *surface_format_count,
889 VkSurfaceFormatKHR *surface_formats)
890 {
891 VK_OUTARRAY_MAKE(out, surface_formats, surface_format_count);
892
893 for (unsigned i = 0; i < ARRAY_SIZE(available_surface_formats); i++) {
894 vk_outarray_append(&out, f) {
895 f->format = available_surface_formats[i].format;
896 f->colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
897 }
898 }
899
900 return vk_outarray_status(&out);
901 }
902
903 static VkResult
904 wsi_display_surface_get_formats2(VkIcdSurfaceBase *surface,
905 struct wsi_device *wsi_device,
906 const void *info_next,
907 uint32_t *surface_format_count,
908 VkSurfaceFormat2KHR *surface_formats)
909 {
910 VK_OUTARRAY_MAKE(out, surface_formats, surface_format_count);
911
912 for (unsigned i = 0; i < ARRAY_SIZE(available_surface_formats); i++) {
913 vk_outarray_append(&out, f) {
914 assert(f->sType == VK_STRUCTURE_TYPE_SURFACE_FORMAT_2_KHR);
915 f->surfaceFormat.format = available_surface_formats[i].format;
916 f->surfaceFormat.colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
917 }
918 }
919
920 return vk_outarray_status(&out);
921 }
922
923 static VkResult
924 wsi_display_surface_get_present_modes(VkIcdSurfaceBase *surface,
925 uint32_t *present_mode_count,
926 VkPresentModeKHR *present_modes)
927 {
928 VK_OUTARRAY_MAKE(conn, present_modes, present_mode_count);
929
930 vk_outarray_append(&conn, present) {
931 *present = VK_PRESENT_MODE_FIFO_KHR;
932 }
933
934 return vk_outarray_status(&conn);
935 }
936
937 static void
938 wsi_display_destroy_buffer(struct wsi_display *wsi,
939 uint32_t buffer)
940 {
941 (void) drmIoctl(wsi->fd, DRM_IOCTL_MODE_DESTROY_DUMB,
942 &((struct drm_mode_destroy_dumb) { .handle = buffer }));
943 }
944
945 static VkResult
946 wsi_display_image_init(VkDevice device_h,
947 struct wsi_swapchain *drv_chain,
948 const VkSwapchainCreateInfoKHR *create_info,
949 const VkAllocationCallbacks *allocator,
950 struct wsi_display_image *image)
951 {
952 struct wsi_display_swapchain *chain =
953 (struct wsi_display_swapchain *) drv_chain;
954 struct wsi_display *wsi = chain->wsi;
955 uint32_t drm_format = 0;
956
957 for (unsigned i = 0; i < ARRAY_SIZE(available_surface_formats); i++) {
958 if (create_info->imageFormat == available_surface_formats[i].format) {
959 drm_format = available_surface_formats[i].drm_format;
960 break;
961 }
962 }
963
964 /* the application provided an invalid format, bail */
965 if (drm_format == 0)
966 return VK_ERROR_DEVICE_LOST;
967
968 VkResult result = wsi_create_native_image(&chain->base, create_info,
969 0, NULL, NULL,
970 &image->base);
971 if (result != VK_SUCCESS)
972 return result;
973
974 memset(image->buffer, 0, sizeof (image->buffer));
975
976 for (unsigned int i = 0; i < image->base.num_planes; i++) {
977 int ret = drmPrimeFDToHandle(wsi->fd, image->base.fds[i],
978 &image->buffer[i]);
979
980 close(image->base.fds[i]);
981 image->base.fds[i] = -1;
982 if (ret < 0)
983 goto fail_handle;
984 }
985
986 image->chain = chain;
987 image->state = WSI_IMAGE_IDLE;
988 image->fb_id = 0;
989
990 int ret = drmModeAddFB2(wsi->fd,
991 create_info->imageExtent.width,
992 create_info->imageExtent.height,
993 drm_format,
994 image->buffer,
995 image->base.row_pitches,
996 image->base.offsets,
997 &image->fb_id, 0);
998
999 if (ret)
1000 goto fail_fb;
1001
1002 return VK_SUCCESS;
1003
1004 fail_fb:
1005 fail_handle:
1006 for (unsigned int i = 0; i < image->base.num_planes; i++) {
1007 if (image->buffer[i])
1008 wsi_display_destroy_buffer(wsi, image->buffer[i]);
1009 if (image->base.fds[i] != -1) {
1010 close(image->base.fds[i]);
1011 image->base.fds[i] = -1;
1012 }
1013 }
1014
1015 wsi_destroy_image(&chain->base, &image->base);
1016
1017 return VK_ERROR_OUT_OF_HOST_MEMORY;
1018 }
1019
1020 static void
1021 wsi_display_image_finish(struct wsi_swapchain *drv_chain,
1022 const VkAllocationCallbacks *allocator,
1023 struct wsi_display_image *image)
1024 {
1025 struct wsi_display_swapchain *chain =
1026 (struct wsi_display_swapchain *) drv_chain;
1027 struct wsi_display *wsi = chain->wsi;
1028
1029 drmModeRmFB(wsi->fd, image->fb_id);
1030 for (unsigned int i = 0; i < image->base.num_planes; i++)
1031 wsi_display_destroy_buffer(wsi, image->buffer[i]);
1032 wsi_destroy_image(&chain->base, &image->base);
1033 }
1034
1035 static VkResult
1036 wsi_display_swapchain_destroy(struct wsi_swapchain *drv_chain,
1037 const VkAllocationCallbacks *allocator)
1038 {
1039 struct wsi_display_swapchain *chain =
1040 (struct wsi_display_swapchain *) drv_chain;
1041
1042 for (uint32_t i = 0; i < chain->base.image_count; i++)
1043 wsi_display_image_finish(drv_chain, allocator, &chain->images[i]);
1044 vk_free(allocator, chain);
1045 return VK_SUCCESS;
1046 }
1047
1048 static struct wsi_image *
1049 wsi_display_get_wsi_image(struct wsi_swapchain *drv_chain,
1050 uint32_t image_index)
1051 {
1052 struct wsi_display_swapchain *chain =
1053 (struct wsi_display_swapchain *) drv_chain;
1054
1055 return &chain->images[image_index].base;
1056 }
1057
1058 static void
1059 wsi_display_idle_old_displaying(struct wsi_display_image *active_image)
1060 {
1061 struct wsi_display_swapchain *chain = active_image->chain;
1062
1063 wsi_display_debug("idle everyone but %ld\n",
1064 active_image - &(chain->images[0]));
1065 for (uint32_t i = 0; i < chain->base.image_count; i++)
1066 if (chain->images[i].state == WSI_IMAGE_DISPLAYING &&
1067 &chain->images[i] != active_image)
1068 {
1069 wsi_display_debug("idle %d\n", i);
1070 chain->images[i].state = WSI_IMAGE_IDLE;
1071 }
1072 }
1073
1074 static VkResult
1075 _wsi_display_queue_next(struct wsi_swapchain *drv_chain);
1076
1077 static void
1078 wsi_display_page_flip_handler2(int fd,
1079 unsigned int frame,
1080 unsigned int sec,
1081 unsigned int usec,
1082 uint32_t crtc_id,
1083 void *data)
1084 {
1085 struct wsi_display_image *image = data;
1086 struct wsi_display_swapchain *chain = image->chain;
1087
1088 wsi_display_debug("image %ld displayed at %d\n",
1089 image - &(image->chain->images[0]), frame);
1090 image->state = WSI_IMAGE_DISPLAYING;
1091 wsi_display_idle_old_displaying(image);
1092 VkResult result = _wsi_display_queue_next(&(chain->base));
1093 if (result != VK_SUCCESS)
1094 chain->status = result;
1095 }
1096
1097 static void wsi_display_fence_event_handler(struct wsi_display_fence *fence);
1098
1099 static void wsi_display_page_flip_handler(int fd,
1100 unsigned int frame,
1101 unsigned int sec,
1102 unsigned int usec,
1103 void *data)
1104 {
1105 wsi_display_page_flip_handler2(fd, frame, sec, usec, 0, data);
1106 }
1107
1108 static void wsi_display_vblank_handler(int fd, unsigned int frame,
1109 unsigned int sec, unsigned int usec,
1110 void *data)
1111 {
1112 struct wsi_display_fence *fence = data;
1113
1114 wsi_display_fence_event_handler(fence);
1115 }
1116
1117 static void wsi_display_sequence_handler(int fd, uint64_t frame,
1118 uint64_t nsec, uint64_t user_data)
1119 {
1120 struct wsi_display_fence *fence =
1121 (struct wsi_display_fence *) (uintptr_t) user_data;
1122
1123 wsi_display_fence_event_handler(fence);
1124 }
1125
1126 static drmEventContext event_context = {
1127 .version = DRM_EVENT_CONTEXT_VERSION,
1128 .page_flip_handler = wsi_display_page_flip_handler,
1129 #if DRM_EVENT_CONTEXT_VERSION >= 3
1130 .page_flip_handler2 = wsi_display_page_flip_handler2,
1131 #endif
1132 .vblank_handler = wsi_display_vblank_handler,
1133 .sequence_handler = wsi_display_sequence_handler,
1134 };
1135
1136 static void *
1137 wsi_display_wait_thread(void *data)
1138 {
1139 struct wsi_display *wsi = data;
1140 struct pollfd pollfd = {
1141 .fd = wsi->fd,
1142 .events = POLLIN
1143 };
1144
1145 pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
1146 for (;;) {
1147 int ret = poll(&pollfd, 1, -1);
1148 if (ret > 0) {
1149 pthread_mutex_lock(&wsi->wait_mutex);
1150 (void) drmHandleEvent(wsi->fd, &event_context);
1151 pthread_mutex_unlock(&wsi->wait_mutex);
1152 pthread_cond_broadcast(&wsi->wait_cond);
1153 }
1154 }
1155 return NULL;
1156 }
1157
1158 static int
1159 wsi_display_start_wait_thread(struct wsi_display *wsi)
1160 {
1161 if (!wsi->wait_thread) {
1162 int ret = pthread_create(&wsi->wait_thread, NULL,
1163 wsi_display_wait_thread, wsi);
1164 if (ret)
1165 return ret;
1166 }
1167 return 0;
1168 }
1169
1170 /*
1171 * Wait for at least one event from the kernel to be processed.
1172 * Call with wait_mutex held
1173 */
1174 static int
1175 wsi_display_wait_for_event(struct wsi_display *wsi,
1176 uint64_t timeout_ns)
1177 {
1178 int ret;
1179
1180 ret = wsi_display_start_wait_thread(wsi);
1181
1182 if (ret)
1183 return ret;
1184
1185 struct timespec abs_timeout = {
1186 .tv_sec = timeout_ns / 1000000000ULL,
1187 .tv_nsec = timeout_ns % 1000000000ULL,
1188 };
1189
1190 ret = pthread_cond_timedwait(&wsi->wait_cond, &wsi->wait_mutex,
1191 &abs_timeout);
1192
1193 wsi_display_debug("%9ld done waiting for event %d\n", pthread_self(), ret);
1194 return ret;
1195 }
1196
1197 static VkResult
1198 wsi_display_acquire_next_image(struct wsi_swapchain *drv_chain,
1199 const VkAcquireNextImageInfoKHR *info,
1200 uint32_t *image_index)
1201 {
1202 struct wsi_display_swapchain *chain =
1203 (struct wsi_display_swapchain *)drv_chain;
1204 struct wsi_display *wsi = chain->wsi;
1205 int ret = 0;
1206 VkResult result = VK_SUCCESS;
1207
1208 /* Bail early if the swapchain is broken */
1209 if (chain->status != VK_SUCCESS)
1210 return chain->status;
1211
1212 uint64_t timeout = info->timeout;
1213 if (timeout != 0 && timeout != UINT64_MAX)
1214 timeout = wsi_rel_to_abs_time(timeout);
1215
1216 pthread_mutex_lock(&wsi->wait_mutex);
1217 for (;;) {
1218 for (uint32_t i = 0; i < chain->base.image_count; i++) {
1219 if (chain->images[i].state == WSI_IMAGE_IDLE) {
1220 *image_index = i;
1221 wsi_display_debug("image %d available\n", i);
1222 chain->images[i].state = WSI_IMAGE_DRAWING;
1223 result = VK_SUCCESS;
1224 goto done;
1225 }
1226 wsi_display_debug("image %d state %d\n", i, chain->images[i].state);
1227 }
1228
1229 if (ret == ETIMEDOUT) {
1230 result = VK_TIMEOUT;
1231 goto done;
1232 }
1233
1234 ret = wsi_display_wait_for_event(wsi, timeout);
1235
1236 if (ret && ret != ETIMEDOUT) {
1237 result = VK_ERROR_SURFACE_LOST_KHR;
1238 goto done;
1239 }
1240 }
1241 done:
1242 pthread_mutex_unlock(&wsi->wait_mutex);
1243
1244 if (result != VK_SUCCESS)
1245 return result;
1246
1247 return chain->status;
1248 }
1249
1250 /*
1251 * Check whether there are any other connectors driven by this crtc
1252 */
1253 static bool
1254 wsi_display_crtc_solo(struct wsi_display *wsi,
1255 drmModeResPtr mode_res,
1256 drmModeConnectorPtr connector,
1257 uint32_t crtc_id)
1258 {
1259 /* See if any other connectors share the same encoder */
1260 for (int c = 0; c < mode_res->count_connectors; c++) {
1261 if (mode_res->connectors[c] == connector->connector_id)
1262 continue;
1263
1264 drmModeConnectorPtr other_connector =
1265 drmModeGetConnector(wsi->fd, mode_res->connectors[c]);
1266
1267 if (other_connector) {
1268 bool match = (other_connector->encoder_id == connector->encoder_id);
1269 drmModeFreeConnector(other_connector);
1270 if (match)
1271 return false;
1272 }
1273 }
1274
1275 /* See if any other encoders share the same crtc */
1276 for (int e = 0; e < mode_res->count_encoders; e++) {
1277 if (mode_res->encoders[e] == connector->encoder_id)
1278 continue;
1279
1280 drmModeEncoderPtr other_encoder =
1281 drmModeGetEncoder(wsi->fd, mode_res->encoders[e]);
1282
1283 if (other_encoder) {
1284 bool match = (other_encoder->crtc_id == crtc_id);
1285 drmModeFreeEncoder(other_encoder);
1286 if (match)
1287 return false;
1288 }
1289 }
1290 return true;
1291 }
1292
1293 /*
1294 * Pick a suitable CRTC to drive this connector. Prefer a CRTC which is
1295 * currently driving this connector and not any others. Settle for a CRTC
1296 * which is currently idle.
1297 */
1298 static uint32_t
1299 wsi_display_select_crtc(const struct wsi_display_connector *connector,
1300 drmModeResPtr mode_res,
1301 drmModeConnectorPtr drm_connector)
1302 {
1303 struct wsi_display *wsi = connector->wsi;
1304
1305 /* See what CRTC is currently driving this connector */
1306 if (drm_connector->encoder_id) {
1307 drmModeEncoderPtr encoder =
1308 drmModeGetEncoder(wsi->fd, drm_connector->encoder_id);
1309
1310 if (encoder) {
1311 uint32_t crtc_id = encoder->crtc_id;
1312 drmModeFreeEncoder(encoder);
1313 if (crtc_id) {
1314 if (wsi_display_crtc_solo(wsi, mode_res, drm_connector, crtc_id))
1315 return crtc_id;
1316 }
1317 }
1318 }
1319 uint32_t crtc_id = 0;
1320 for (int c = 0; crtc_id == 0 && c < mode_res->count_crtcs; c++) {
1321 drmModeCrtcPtr crtc = drmModeGetCrtc(wsi->fd, mode_res->crtcs[c]);
1322 if (crtc && crtc->buffer_id == 0)
1323 crtc_id = crtc->crtc_id;
1324 drmModeFreeCrtc(crtc);
1325 }
1326 return crtc_id;
1327 }
1328
1329 static VkResult
1330 wsi_display_setup_connector(wsi_display_connector *connector,
1331 wsi_display_mode *display_mode)
1332 {
1333 struct wsi_display *wsi = connector->wsi;
1334
1335 if (connector->current_mode == display_mode && connector->crtc_id)
1336 return VK_SUCCESS;
1337
1338 VkResult result = VK_SUCCESS;
1339
1340 drmModeResPtr mode_res = drmModeGetResources(wsi->fd);
1341 if (!mode_res) {
1342 if (errno == ENOMEM)
1343 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1344 else
1345 result = VK_ERROR_SURFACE_LOST_KHR;
1346 goto bail;
1347 }
1348
1349 drmModeConnectorPtr drm_connector =
1350 drmModeGetConnectorCurrent(wsi->fd, connector->id);
1351
1352 if (!drm_connector) {
1353 if (errno == ENOMEM)
1354 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1355 else
1356 result = VK_ERROR_SURFACE_LOST_KHR;
1357 goto bail_mode_res;
1358 }
1359
1360 /* Pick a CRTC if we don't have one */
1361 if (!connector->crtc_id) {
1362 connector->crtc_id = wsi_display_select_crtc(connector,
1363 mode_res, drm_connector);
1364 if (!connector->crtc_id) {
1365 result = VK_ERROR_SURFACE_LOST_KHR;
1366 goto bail_connector;
1367 }
1368 }
1369
1370 if (connector->current_mode != display_mode) {
1371
1372 /* Find the drm mode corresponding to the requested VkDisplayMode */
1373 drmModeModeInfoPtr drm_mode = NULL;
1374
1375 for (int m = 0; m < drm_connector->count_modes; m++) {
1376 drm_mode = &drm_connector->modes[m];
1377 if (wsi_display_mode_matches_drm(display_mode, drm_mode))
1378 break;
1379 drm_mode = NULL;
1380 }
1381
1382 if (!drm_mode) {
1383 result = VK_ERROR_SURFACE_LOST_KHR;
1384 goto bail_connector;
1385 }
1386
1387 connector->current_mode = display_mode;
1388 connector->current_drm_mode = *drm_mode;
1389 }
1390
1391 bail_connector:
1392 drmModeFreeConnector(drm_connector);
1393 bail_mode_res:
1394 drmModeFreeResources(mode_res);
1395 bail:
1396 return result;
1397
1398 }
1399
1400 static VkResult
1401 wsi_display_fence_wait(struct wsi_fence *fence_wsi, uint64_t timeout)
1402 {
1403 const struct wsi_device *wsi_device = fence_wsi->wsi_device;
1404 struct wsi_display *wsi =
1405 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1406 struct wsi_display_fence *fence = (struct wsi_display_fence *) fence_wsi;
1407
1408 wsi_display_debug("%9lu wait fence %lu %ld\n",
1409 pthread_self(), fence->sequence,
1410 (int64_t) (timeout - wsi_get_current_monotonic()));
1411 wsi_display_debug_code(uint64_t start_ns = wsi_get_current_monotonic());
1412 pthread_mutex_lock(&wsi->wait_mutex);
1413
1414 VkResult result;
1415 int ret = 0;
1416 for (;;) {
1417 if (fence->event_received) {
1418 wsi_display_debug("%9lu fence %lu passed\n",
1419 pthread_self(), fence->sequence);
1420 result = VK_SUCCESS;
1421 break;
1422 }
1423
1424 if (ret == ETIMEDOUT) {
1425 wsi_display_debug("%9lu fence %lu timeout\n",
1426 pthread_self(), fence->sequence);
1427 result = VK_TIMEOUT;
1428 break;
1429 }
1430
1431 ret = wsi_display_wait_for_event(wsi, timeout);
1432
1433 if (ret && ret != ETIMEDOUT) {
1434 wsi_display_debug("%9lu fence %lu error\n",
1435 pthread_self(), fence->sequence);
1436 result = VK_ERROR_DEVICE_LOST;
1437 break;
1438 }
1439 }
1440 pthread_mutex_unlock(&wsi->wait_mutex);
1441 wsi_display_debug("%9lu fence wait %f ms\n",
1442 pthread_self(),
1443 ((int64_t) (wsi_get_current_monotonic() - start_ns)) /
1444 1.0e6);
1445 return result;
1446 }
1447
1448 static void
1449 wsi_display_fence_check_free(struct wsi_display_fence *fence)
1450 {
1451 if (fence->event_received && fence->destroyed)
1452 vk_free(fence->base.alloc, fence);
1453 }
1454
1455 static void wsi_display_fence_event_handler(struct wsi_display_fence *fence)
1456 {
1457 fence->event_received = true;
1458 wsi_display_fence_check_free(fence);
1459 }
1460
1461 static void
1462 wsi_display_fence_destroy(struct wsi_fence *fence_wsi)
1463 {
1464 struct wsi_display_fence *fence = (struct wsi_display_fence *) fence_wsi;
1465
1466 assert(!fence->destroyed);
1467 fence->destroyed = true;
1468 wsi_display_fence_check_free(fence);
1469 }
1470
1471 static struct wsi_display_fence *
1472 wsi_display_fence_alloc(VkDevice device,
1473 const struct wsi_device *wsi_device,
1474 VkDisplayKHR display,
1475 const VkAllocationCallbacks *allocator)
1476 {
1477 struct wsi_display *wsi =
1478 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1479 struct wsi_display_fence *fence =
1480 vk_zalloc2(wsi->alloc, allocator, sizeof (*fence),
1481 8, VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
1482
1483 if (!fence)
1484 return NULL;
1485
1486 fence->base.device = device;
1487 fence->base.display = display;
1488 fence->base.wsi_device = wsi_device;
1489 fence->base.alloc = allocator ? allocator : wsi->alloc;
1490 fence->base.wait = wsi_display_fence_wait;
1491 fence->base.destroy = wsi_display_fence_destroy;
1492 fence->event_received = false;
1493 fence->destroyed = false;
1494 fence->sequence = ++fence_sequence;
1495 return fence;
1496 }
1497
1498 static VkResult
1499 wsi_register_vblank_event(struct wsi_display_fence *fence,
1500 const struct wsi_device *wsi_device,
1501 VkDisplayKHR display,
1502 uint32_t flags,
1503 uint64_t frame_requested,
1504 uint64_t *frame_queued)
1505 {
1506 struct wsi_display *wsi =
1507 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1508 struct wsi_display_connector *connector =
1509 wsi_display_connector_from_handle(display);
1510
1511 if (wsi->fd < 0)
1512 return VK_ERROR_INITIALIZATION_FAILED;
1513
1514 for (;;) {
1515 int ret = drmCrtcQueueSequence(wsi->fd, connector->crtc_id,
1516 flags,
1517 frame_requested,
1518 frame_queued,
1519 (uintptr_t) fence);
1520
1521 if (!ret)
1522 return VK_SUCCESS;
1523
1524 if (errno != ENOMEM) {
1525
1526 /* Something unexpected happened. Pause for a moment so the
1527 * application doesn't just spin and then return a failure indication
1528 */
1529
1530 wsi_display_debug("queue vblank event %lu failed\n", fence->sequence);
1531 struct timespec delay = {
1532 .tv_sec = 0,
1533 .tv_nsec = 100000000ull,
1534 };
1535 nanosleep(&delay, NULL);
1536 return VK_ERROR_OUT_OF_HOST_MEMORY;
1537 }
1538
1539 /* The kernel event queue is full. Wait for some events to be
1540 * processed and try again
1541 */
1542
1543 pthread_mutex_lock(&wsi->wait_mutex);
1544 ret = wsi_display_wait_for_event(wsi, wsi_rel_to_abs_time(100000000ull));
1545 pthread_mutex_unlock(&wsi->wait_mutex);
1546
1547 if (ret) {
1548 wsi_display_debug("vblank queue full, event wait failed\n");
1549 return VK_ERROR_OUT_OF_HOST_MEMORY;
1550 }
1551 }
1552 }
1553
1554 /*
1555 * Check to see if the kernel has no flip queued and if there's an image
1556 * waiting to be displayed.
1557 */
1558 static VkResult
1559 _wsi_display_queue_next(struct wsi_swapchain *drv_chain)
1560 {
1561 struct wsi_display_swapchain *chain =
1562 (struct wsi_display_swapchain *) drv_chain;
1563 struct wsi_display *wsi = chain->wsi;
1564 VkIcdSurfaceDisplay *surface = chain->surface;
1565 wsi_display_mode *display_mode =
1566 wsi_display_mode_from_handle(surface->displayMode);
1567 wsi_display_connector *connector = display_mode->connector;
1568
1569 if (wsi->fd < 0)
1570 return VK_ERROR_SURFACE_LOST_KHR;
1571
1572 if (display_mode != connector->current_mode)
1573 connector->active = false;
1574
1575 for (;;) {
1576
1577 /* Check to see if there is an image to display, or if some image is
1578 * already queued */
1579
1580 struct wsi_display_image *image = NULL;
1581
1582 for (uint32_t i = 0; i < chain->base.image_count; i++) {
1583 struct wsi_display_image *tmp_image = &chain->images[i];
1584
1585 switch (tmp_image->state) {
1586 case WSI_IMAGE_FLIPPING:
1587 /* already flipping, don't send another to the kernel yet */
1588 return VK_SUCCESS;
1589 case WSI_IMAGE_QUEUED:
1590 /* find the oldest queued */
1591 if (!image || tmp_image->flip_sequence < image->flip_sequence)
1592 image = tmp_image;
1593 break;
1594 default:
1595 break;
1596 }
1597 }
1598
1599 if (!image)
1600 return VK_SUCCESS;
1601
1602 int ret;
1603 if (connector->active) {
1604 ret = drmModePageFlip(wsi->fd, connector->crtc_id, image->fb_id,
1605 DRM_MODE_PAGE_FLIP_EVENT, image);
1606 if (ret == 0) {
1607 image->state = WSI_IMAGE_FLIPPING;
1608 return VK_SUCCESS;
1609 }
1610 wsi_display_debug("page flip err %d %s\n", ret, strerror(-ret));
1611 } else {
1612 ret = -EINVAL;
1613 }
1614
1615 if (ret == -EINVAL) {
1616 VkResult result = wsi_display_setup_connector(connector, display_mode);
1617
1618 if (result != VK_SUCCESS) {
1619 image->state = WSI_IMAGE_IDLE;
1620 return result;
1621 }
1622
1623 /* XXX allow setting of position */
1624 ret = drmModeSetCrtc(wsi->fd, connector->crtc_id,
1625 image->fb_id, 0, 0,
1626 &connector->id, 1,
1627 &connector->current_drm_mode);
1628 if (ret == 0) {
1629 /* Assume that the mode set is synchronous and that any
1630 * previous image is now idle.
1631 */
1632 image->state = WSI_IMAGE_DISPLAYING;
1633 wsi_display_idle_old_displaying(image);
1634 connector->active = true;
1635 return VK_SUCCESS;
1636 }
1637 }
1638
1639 if (ret != -EACCES) {
1640 connector->active = false;
1641 image->state = WSI_IMAGE_IDLE;
1642 return VK_ERROR_SURFACE_LOST_KHR;
1643 }
1644
1645 /* Some other VT is currently active. Sit here waiting for
1646 * our VT to become active again by polling once a second
1647 */
1648 usleep(1000 * 1000);
1649 connector->active = false;
1650 }
1651 }
1652
1653 static VkResult
1654 wsi_display_queue_present(struct wsi_swapchain *drv_chain,
1655 uint32_t image_index,
1656 const VkPresentRegionKHR *damage)
1657 {
1658 struct wsi_display_swapchain *chain =
1659 (struct wsi_display_swapchain *) drv_chain;
1660 struct wsi_display *wsi = chain->wsi;
1661 struct wsi_display_image *image = &chain->images[image_index];
1662 VkResult result;
1663
1664 /* Bail early if the swapchain is broken */
1665 if (chain->status != VK_SUCCESS)
1666 return chain->status;
1667
1668 assert(image->state == WSI_IMAGE_DRAWING);
1669 wsi_display_debug("present %d\n", image_index);
1670
1671 pthread_mutex_lock(&wsi->wait_mutex);
1672
1673 image->flip_sequence = ++chain->flip_sequence;
1674 image->state = WSI_IMAGE_QUEUED;
1675
1676 result = _wsi_display_queue_next(drv_chain);
1677 if (result != VK_SUCCESS)
1678 chain->status = result;
1679
1680 pthread_mutex_unlock(&wsi->wait_mutex);
1681
1682 if (result != VK_SUCCESS)
1683 return result;
1684
1685 return chain->status;
1686 }
1687
1688 static VkResult
1689 wsi_display_surface_create_swapchain(
1690 VkIcdSurfaceBase *icd_surface,
1691 VkDevice device,
1692 struct wsi_device *wsi_device,
1693 int local_fd,
1694 const VkSwapchainCreateInfoKHR *create_info,
1695 const VkAllocationCallbacks *allocator,
1696 struct wsi_swapchain **swapchain_out)
1697 {
1698 struct wsi_display *wsi =
1699 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1700
1701 assert(create_info->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
1702
1703 const unsigned num_images = create_info->minImageCount;
1704 struct wsi_display_swapchain *chain =
1705 vk_zalloc(allocator,
1706 sizeof(*chain) + num_images * sizeof(chain->images[0]),
1707 8, VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
1708
1709 if (chain == NULL)
1710 return VK_ERROR_OUT_OF_HOST_MEMORY;
1711
1712 VkResult result = wsi_swapchain_init(wsi_device, &chain->base, device,
1713 create_info, allocator);
1714 if (result != VK_SUCCESS) {
1715 vk_free(allocator, chain);
1716 return result;
1717 }
1718
1719 chain->base.destroy = wsi_display_swapchain_destroy;
1720 chain->base.get_wsi_image = wsi_display_get_wsi_image;
1721 chain->base.acquire_next_image = wsi_display_acquire_next_image;
1722 chain->base.queue_present = wsi_display_queue_present;
1723 chain->base.present_mode = create_info->presentMode;
1724 chain->base.image_count = num_images;
1725
1726 chain->wsi = wsi;
1727 chain->status = VK_SUCCESS;
1728
1729 chain->surface = (VkIcdSurfaceDisplay *) icd_surface;
1730
1731 for (uint32_t image = 0; image < chain->base.image_count; image++) {
1732 result = wsi_display_image_init(device, &chain->base,
1733 create_info, allocator,
1734 &chain->images[image]);
1735 if (result != VK_SUCCESS) {
1736 while (image > 0) {
1737 --image;
1738 wsi_display_image_finish(&chain->base, allocator,
1739 &chain->images[image]);
1740 }
1741 vk_free(allocator, chain);
1742 goto fail_init_images;
1743 }
1744 }
1745
1746 *swapchain_out = &chain->base;
1747
1748 return VK_SUCCESS;
1749
1750 fail_init_images:
1751 return result;
1752 }
1753
1754 static bool
1755 wsi_init_pthread_cond_monotonic(pthread_cond_t *cond)
1756 {
1757 pthread_condattr_t condattr;
1758 bool ret = false;
1759
1760 if (pthread_condattr_init(&condattr) != 0)
1761 goto fail_attr_init;
1762
1763 if (pthread_condattr_setclock(&condattr, CLOCK_MONOTONIC) != 0)
1764 goto fail_attr_set;
1765
1766 if (pthread_cond_init(cond, &condattr) != 0)
1767 goto fail_cond_init;
1768
1769 ret = true;
1770
1771 fail_cond_init:
1772 fail_attr_set:
1773 pthread_condattr_destroy(&condattr);
1774 fail_attr_init:
1775 return ret;
1776 }
1777
1778 VkResult
1779 wsi_display_init_wsi(struct wsi_device *wsi_device,
1780 const VkAllocationCallbacks *alloc,
1781 int display_fd)
1782 {
1783 struct wsi_display *wsi = vk_zalloc(alloc, sizeof(*wsi), 8,
1784 VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
1785 VkResult result;
1786
1787 if (!wsi) {
1788 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1789 goto fail;
1790 }
1791
1792 wsi->fd = display_fd;
1793 wsi->alloc = alloc;
1794
1795 list_inithead(&wsi->connectors);
1796
1797 int ret = pthread_mutex_init(&wsi->wait_mutex, NULL);
1798 if (ret) {
1799 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1800 goto fail_mutex;
1801 }
1802
1803 if (!wsi_init_pthread_cond_monotonic(&wsi->wait_cond)) {
1804 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1805 goto fail_cond;
1806 }
1807
1808 wsi->base.get_support = wsi_display_surface_get_support;
1809 wsi->base.get_capabilities2 = wsi_display_surface_get_capabilities2;
1810 wsi->base.get_formats = wsi_display_surface_get_formats;
1811 wsi->base.get_formats2 = wsi_display_surface_get_formats2;
1812 wsi->base.get_present_modes = wsi_display_surface_get_present_modes;
1813 wsi->base.create_swapchain = wsi_display_surface_create_swapchain;
1814
1815 wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY] = &wsi->base;
1816
1817 return VK_SUCCESS;
1818
1819 fail_cond:
1820 pthread_mutex_destroy(&wsi->wait_mutex);
1821 fail_mutex:
1822 vk_free(alloc, wsi);
1823 fail:
1824 return result;
1825 }
1826
1827 void
1828 wsi_display_finish_wsi(struct wsi_device *wsi_device,
1829 const VkAllocationCallbacks *alloc)
1830 {
1831 struct wsi_display *wsi =
1832 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1833
1834 if (wsi) {
1835 wsi_for_each_connector(connector, wsi) {
1836 wsi_for_each_display_mode(mode, connector) {
1837 vk_free(wsi->alloc, mode);
1838 }
1839 vk_free(wsi->alloc, connector);
1840 }
1841
1842 pthread_mutex_lock(&wsi->wait_mutex);
1843 if (wsi->wait_thread) {
1844 pthread_cancel(wsi->wait_thread);
1845 pthread_join(wsi->wait_thread, NULL);
1846 }
1847 pthread_mutex_unlock(&wsi->wait_mutex);
1848 pthread_mutex_destroy(&wsi->wait_mutex);
1849 pthread_cond_destroy(&wsi->wait_cond);
1850
1851 vk_free(alloc, wsi);
1852 }
1853 }
1854
1855 /*
1856 * Implement vkReleaseDisplay
1857 */
1858 VkResult
1859 wsi_release_display(VkPhysicalDevice physical_device,
1860 struct wsi_device *wsi_device,
1861 VkDisplayKHR display)
1862 {
1863 struct wsi_display *wsi =
1864 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1865
1866 if (wsi->fd >= 0) {
1867 close(wsi->fd);
1868 wsi->fd = -1;
1869 }
1870 #ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
1871 wsi_display_connector_from_handle(display)->output = None;
1872 #endif
1873
1874 return VK_SUCCESS;
1875 }
1876
1877 #ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
1878
1879 static struct wsi_display_connector *
1880 wsi_display_find_output(struct wsi_device *wsi_device,
1881 xcb_randr_output_t output)
1882 {
1883 struct wsi_display *wsi =
1884 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1885
1886 wsi_for_each_connector(connector, wsi) {
1887 if (connector->output == output)
1888 return connector;
1889 }
1890
1891 return NULL;
1892 }
1893
1894 /*
1895 * Given a RandR output, find the associated kernel connector_id by
1896 * looking at the CONNECTOR_ID property provided by the X server
1897 */
1898
1899 static uint32_t
1900 wsi_display_output_to_connector_id(xcb_connection_t *connection,
1901 xcb_atom_t *connector_id_atom_p,
1902 xcb_randr_output_t output)
1903 {
1904 uint32_t connector_id = 0;
1905 xcb_atom_t connector_id_atom = *connector_id_atom_p;
1906
1907 if (connector_id_atom == 0) {
1908 /* Go dig out the CONNECTOR_ID property */
1909 xcb_intern_atom_cookie_t ia_c = xcb_intern_atom(connection,
1910 true,
1911 12,
1912 "CONNECTOR_ID");
1913 xcb_intern_atom_reply_t *ia_r = xcb_intern_atom_reply(connection,
1914 ia_c,
1915 NULL);
1916 if (ia_r) {
1917 *connector_id_atom_p = connector_id_atom = ia_r->atom;
1918 free(ia_r);
1919 }
1920 }
1921
1922 /* If there's an CONNECTOR_ID atom in the server, then there may be a
1923 * CONNECTOR_ID property. Otherwise, there will not be and we don't even
1924 * need to bother.
1925 */
1926 if (connector_id_atom) {
1927
1928 xcb_randr_query_version_cookie_t qv_c =
1929 xcb_randr_query_version(connection, 1, 6);
1930 xcb_randr_get_output_property_cookie_t gop_c =
1931 xcb_randr_get_output_property(connection,
1932 output,
1933 connector_id_atom,
1934 0,
1935 0,
1936 0xffffffffUL,
1937 0,
1938 0);
1939 xcb_randr_query_version_reply_t *qv_r =
1940 xcb_randr_query_version_reply(connection, qv_c, NULL);
1941 free(qv_r);
1942 xcb_randr_get_output_property_reply_t *gop_r =
1943 xcb_randr_get_output_property_reply(connection, gop_c, NULL);
1944 if (gop_r) {
1945 if (gop_r->num_items == 1 && gop_r->format == 32)
1946 memcpy(&connector_id, xcb_randr_get_output_property_data(gop_r), 4);
1947 free(gop_r);
1948 }
1949 }
1950 return connector_id;
1951 }
1952
1953 static bool
1954 wsi_display_check_randr_version(xcb_connection_t *connection)
1955 {
1956 xcb_randr_query_version_cookie_t qv_c =
1957 xcb_randr_query_version(connection, 1, 6);
1958 xcb_randr_query_version_reply_t *qv_r =
1959 xcb_randr_query_version_reply(connection, qv_c, NULL);
1960 bool ret = false;
1961
1962 if (!qv_r)
1963 return false;
1964
1965 /* Check for version 1.6 or newer */
1966 ret = (qv_r->major_version > 1 ||
1967 (qv_r->major_version == 1 && qv_r->minor_version >= 6));
1968
1969 free(qv_r);
1970 return ret;
1971 }
1972
1973 /*
1974 * Given a kernel connector id, find the associated RandR output using the
1975 * CONNECTOR_ID property
1976 */
1977
1978 static xcb_randr_output_t
1979 wsi_display_connector_id_to_output(xcb_connection_t *connection,
1980 uint32_t connector_id)
1981 {
1982 if (!wsi_display_check_randr_version(connection))
1983 return 0;
1984
1985 const xcb_setup_t *setup = xcb_get_setup(connection);
1986
1987 xcb_atom_t connector_id_atom = 0;
1988 xcb_randr_output_t output = 0;
1989
1990 /* Search all of the screens for the provided output */
1991 xcb_screen_iterator_t iter;
1992 for (iter = xcb_setup_roots_iterator(setup);
1993 output == 0 && iter.rem;
1994 xcb_screen_next(&iter))
1995 {
1996 xcb_randr_get_screen_resources_cookie_t gsr_c =
1997 xcb_randr_get_screen_resources(connection, iter.data->root);
1998 xcb_randr_get_screen_resources_reply_t *gsr_r =
1999 xcb_randr_get_screen_resources_reply(connection, gsr_c, NULL);
2000
2001 if (!gsr_r)
2002 return 0;
2003
2004 xcb_randr_output_t *ro = xcb_randr_get_screen_resources_outputs(gsr_r);
2005 int o;
2006
2007 for (o = 0; o < gsr_r->num_outputs; o++) {
2008 if (wsi_display_output_to_connector_id(connection,
2009 &connector_id_atom, ro[o])
2010 == connector_id)
2011 {
2012 output = ro[o];
2013 break;
2014 }
2015 }
2016 free(gsr_r);
2017 }
2018 return output;
2019 }
2020
2021 /*
2022 * Given a RandR output, find out which screen it's associated with
2023 */
2024 static xcb_window_t
2025 wsi_display_output_to_root(xcb_connection_t *connection,
2026 xcb_randr_output_t output)
2027 {
2028 if (!wsi_display_check_randr_version(connection))
2029 return 0;
2030
2031 const xcb_setup_t *setup = xcb_get_setup(connection);
2032 xcb_window_t root = 0;
2033
2034 /* Search all of the screens for the provided output */
2035 for (xcb_screen_iterator_t iter = xcb_setup_roots_iterator(setup);
2036 root == 0 && iter.rem;
2037 xcb_screen_next(&iter))
2038 {
2039 xcb_randr_get_screen_resources_cookie_t gsr_c =
2040 xcb_randr_get_screen_resources(connection, iter.data->root);
2041 xcb_randr_get_screen_resources_reply_t *gsr_r =
2042 xcb_randr_get_screen_resources_reply(connection, gsr_c, NULL);
2043
2044 if (!gsr_r)
2045 return 0;
2046
2047 xcb_randr_output_t *ro = xcb_randr_get_screen_resources_outputs(gsr_r);
2048
2049 for (int o = 0; o < gsr_r->num_outputs; o++) {
2050 if (ro[o] == output) {
2051 root = iter.data->root;
2052 break;
2053 }
2054 }
2055 free(gsr_r);
2056 }
2057 return root;
2058 }
2059
2060 static bool
2061 wsi_display_mode_matches_x(struct wsi_display_mode *wsi,
2062 xcb_randr_mode_info_t *xcb)
2063 {
2064 return wsi->clock == (xcb->dot_clock + 500) / 1000 &&
2065 wsi->hdisplay == xcb->width &&
2066 wsi->hsync_start == xcb->hsync_start &&
2067 wsi->hsync_end == xcb->hsync_end &&
2068 wsi->htotal == xcb->htotal &&
2069 wsi->hskew == xcb->hskew &&
2070 wsi->vdisplay == xcb->height &&
2071 wsi->vsync_start == xcb->vsync_start &&
2072 wsi->vsync_end == xcb->vsync_end &&
2073 wsi->vtotal == xcb->vtotal &&
2074 wsi->vscan <= 1 &&
2075 wsi->flags == xcb->mode_flags;
2076 }
2077
2078 static struct wsi_display_mode *
2079 wsi_display_find_x_mode(struct wsi_device *wsi_device,
2080 struct wsi_display_connector *connector,
2081 xcb_randr_mode_info_t *mode)
2082 {
2083 wsi_for_each_display_mode(display_mode, connector) {
2084 if (wsi_display_mode_matches_x(display_mode, mode))
2085 return display_mode;
2086 }
2087 return NULL;
2088 }
2089
2090 static VkResult
2091 wsi_display_register_x_mode(struct wsi_device *wsi_device,
2092 struct wsi_display_connector *connector,
2093 xcb_randr_mode_info_t *x_mode,
2094 bool preferred)
2095 {
2096 struct wsi_display *wsi =
2097 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2098 struct wsi_display_mode *display_mode =
2099 wsi_display_find_x_mode(wsi_device, connector, x_mode);
2100
2101 if (display_mode) {
2102 display_mode->valid = true;
2103 return VK_SUCCESS;
2104 }
2105
2106 display_mode = vk_zalloc(wsi->alloc, sizeof (struct wsi_display_mode),
2107 8, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
2108 if (!display_mode)
2109 return VK_ERROR_OUT_OF_HOST_MEMORY;
2110
2111 display_mode->connector = connector;
2112 display_mode->valid = true;
2113 display_mode->preferred = preferred;
2114 display_mode->clock = (x_mode->dot_clock + 500) / 1000; /* kHz */
2115 display_mode->hdisplay = x_mode->width;
2116 display_mode->hsync_start = x_mode->hsync_start;
2117 display_mode->hsync_end = x_mode->hsync_end;
2118 display_mode->htotal = x_mode->htotal;
2119 display_mode->hskew = x_mode->hskew;
2120 display_mode->vdisplay = x_mode->height;
2121 display_mode->vsync_start = x_mode->vsync_start;
2122 display_mode->vsync_end = x_mode->vsync_end;
2123 display_mode->vtotal = x_mode->vtotal;
2124 display_mode->vscan = 0;
2125 display_mode->flags = x_mode->mode_flags;
2126
2127 list_addtail(&display_mode->list, &connector->display_modes);
2128 return VK_SUCCESS;
2129 }
2130
2131 static struct wsi_display_connector *
2132 wsi_display_get_output(struct wsi_device *wsi_device,
2133 xcb_connection_t *connection,
2134 xcb_randr_output_t output)
2135 {
2136 struct wsi_display *wsi =
2137 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2138 struct wsi_display_connector *connector;
2139 uint32_t connector_id;
2140
2141 xcb_window_t root = wsi_display_output_to_root(connection, output);
2142 if (!root)
2143 return NULL;
2144
2145 /* See if we already have a connector for this output */
2146 connector = wsi_display_find_output(wsi_device, output);
2147
2148 if (!connector) {
2149 xcb_atom_t connector_id_atom = 0;
2150
2151 /*
2152 * Go get the kernel connector ID for this X output
2153 */
2154 connector_id = wsi_display_output_to_connector_id(connection,
2155 &connector_id_atom,
2156 output);
2157
2158 /* Any X server with lease support will have this atom */
2159 if (!connector_id) {
2160 return NULL;
2161 }
2162
2163 /* See if we already have a connector for this id */
2164 connector = wsi_display_find_connector(wsi_device, connector_id);
2165
2166 if (connector == NULL) {
2167 connector = wsi_display_alloc_connector(wsi, connector_id);
2168 if (!connector) {
2169 return NULL;
2170 }
2171 list_addtail(&connector->list, &wsi->connectors);
2172 }
2173 connector->output = output;
2174 }
2175
2176 xcb_randr_get_screen_resources_cookie_t src =
2177 xcb_randr_get_screen_resources(connection, root);
2178 xcb_randr_get_output_info_cookie_t oic =
2179 xcb_randr_get_output_info(connection, output, XCB_CURRENT_TIME);
2180 xcb_randr_get_screen_resources_reply_t *srr =
2181 xcb_randr_get_screen_resources_reply(connection, src, NULL);
2182 xcb_randr_get_output_info_reply_t *oir =
2183 xcb_randr_get_output_info_reply(connection, oic, NULL);
2184
2185 if (oir && srr) {
2186 /* Get X modes and add them */
2187
2188 connector->connected =
2189 oir->connection != XCB_RANDR_CONNECTION_DISCONNECTED;
2190
2191 wsi_display_invalidate_connector_modes(wsi_device, connector);
2192
2193 xcb_randr_mode_t *x_modes = xcb_randr_get_output_info_modes(oir);
2194 for (int m = 0; m < oir->num_modes; m++) {
2195 xcb_randr_mode_info_iterator_t i =
2196 xcb_randr_get_screen_resources_modes_iterator(srr);
2197 while (i.rem) {
2198 xcb_randr_mode_info_t *mi = i.data;
2199 if (mi->id == x_modes[m]) {
2200 VkResult result = wsi_display_register_x_mode(
2201 wsi_device, connector, mi, m < oir->num_preferred);
2202 if (result != VK_SUCCESS) {
2203 free(oir);
2204 free(srr);
2205 return NULL;
2206 }
2207 break;
2208 }
2209 xcb_randr_mode_info_next(&i);
2210 }
2211 }
2212 }
2213
2214 free(oir);
2215 free(srr);
2216 return connector;
2217 }
2218
2219 static xcb_randr_crtc_t
2220 wsi_display_find_crtc_for_output(xcb_connection_t *connection,
2221 xcb_window_t root,
2222 xcb_randr_output_t output)
2223 {
2224 xcb_randr_get_screen_resources_cookie_t gsr_c =
2225 xcb_randr_get_screen_resources(connection, root);
2226 xcb_randr_get_screen_resources_reply_t *gsr_r =
2227 xcb_randr_get_screen_resources_reply(connection, gsr_c, NULL);
2228
2229 if (!gsr_r)
2230 return 0;
2231
2232 xcb_randr_crtc_t *rc = xcb_randr_get_screen_resources_crtcs(gsr_r);
2233 xcb_randr_crtc_t idle_crtc = 0;
2234 xcb_randr_crtc_t active_crtc = 0;
2235
2236 /* Find either a crtc already connected to the desired output or idle */
2237 for (int c = 0; active_crtc == 0 && c < gsr_r->num_crtcs; c++) {
2238 xcb_randr_get_crtc_info_cookie_t gci_c =
2239 xcb_randr_get_crtc_info(connection, rc[c], gsr_r->config_timestamp);
2240 xcb_randr_get_crtc_info_reply_t *gci_r =
2241 xcb_randr_get_crtc_info_reply(connection, gci_c, NULL);
2242
2243 if (gci_r) {
2244 if (gci_r->mode) {
2245 int num_outputs = xcb_randr_get_crtc_info_outputs_length(gci_r);
2246 xcb_randr_output_t *outputs =
2247 xcb_randr_get_crtc_info_outputs(gci_r);
2248
2249 if (num_outputs == 1 && outputs[0] == output)
2250 active_crtc = rc[c];
2251
2252 } else if (idle_crtc == 0) {
2253 int num_possible = xcb_randr_get_crtc_info_possible_length(gci_r);
2254 xcb_randr_output_t *possible =
2255 xcb_randr_get_crtc_info_possible(gci_r);
2256
2257 for (int p = 0; p < num_possible; p++)
2258 if (possible[p] == output) {
2259 idle_crtc = rc[c];
2260 break;
2261 }
2262 }
2263 free(gci_r);
2264 }
2265 }
2266 free(gsr_r);
2267
2268 if (active_crtc)
2269 return active_crtc;
2270 return idle_crtc;
2271 }
2272
2273 VkResult
2274 wsi_acquire_xlib_display(VkPhysicalDevice physical_device,
2275 struct wsi_device *wsi_device,
2276 Display *dpy,
2277 VkDisplayKHR display)
2278 {
2279 struct wsi_display *wsi =
2280 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2281 xcb_connection_t *connection = XGetXCBConnection(dpy);
2282 struct wsi_display_connector *connector =
2283 wsi_display_connector_from_handle(display);
2284 xcb_window_t root;
2285
2286 /* XXX no support for multiple leases yet */
2287 if (wsi->fd >= 0)
2288 return VK_ERROR_INITIALIZATION_FAILED;
2289
2290 if (!connector->output) {
2291 connector->output = wsi_display_connector_id_to_output(connection,
2292 connector->id);
2293
2294 /* Check and see if we found the output */
2295 if (!connector->output)
2296 return VK_ERROR_INITIALIZATION_FAILED;
2297 }
2298
2299 root = wsi_display_output_to_root(connection, connector->output);
2300 if (!root)
2301 return VK_ERROR_INITIALIZATION_FAILED;
2302
2303 xcb_randr_crtc_t crtc = wsi_display_find_crtc_for_output(connection,
2304 root,
2305 connector->output);
2306
2307 if (!crtc)
2308 return VK_ERROR_INITIALIZATION_FAILED;
2309
2310 #ifdef HAVE_DRI3_MODIFIERS
2311 xcb_randr_lease_t lease = xcb_generate_id(connection);
2312 xcb_randr_create_lease_cookie_t cl_c =
2313 xcb_randr_create_lease(connection, root, lease, 1, 1,
2314 &crtc, &connector->output);
2315 xcb_randr_create_lease_reply_t *cl_r =
2316 xcb_randr_create_lease_reply(connection, cl_c, NULL);
2317 if (!cl_r)
2318 return VK_ERROR_INITIALIZATION_FAILED;
2319
2320 int fd = -1;
2321 if (cl_r->nfd > 0) {
2322 int *rcl_f = xcb_randr_create_lease_reply_fds(connection, cl_r);
2323
2324 fd = rcl_f[0];
2325 }
2326 free (cl_r);
2327 if (fd < 0)
2328 return VK_ERROR_INITIALIZATION_FAILED;
2329
2330 wsi->fd = fd;
2331 #endif
2332
2333 return VK_SUCCESS;
2334 }
2335
2336 VkResult
2337 wsi_get_randr_output_display(VkPhysicalDevice physical_device,
2338 struct wsi_device *wsi_device,
2339 Display *dpy,
2340 RROutput output,
2341 VkDisplayKHR *display)
2342 {
2343 xcb_connection_t *connection = XGetXCBConnection(dpy);
2344 struct wsi_display_connector *connector =
2345 wsi_display_get_output(wsi_device, connection, (xcb_randr_output_t) output);
2346
2347 if (connector)
2348 *display = wsi_display_connector_to_handle(connector);
2349 else
2350 *display = VK_NULL_HANDLE;
2351 return VK_SUCCESS;
2352 }
2353
2354 #endif
2355
2356 /* VK_EXT_display_control */
2357 VkResult
2358 wsi_display_power_control(VkDevice device,
2359 struct wsi_device *wsi_device,
2360 VkDisplayKHR display,
2361 const VkDisplayPowerInfoEXT *display_power_info)
2362 {
2363 struct wsi_display *wsi =
2364 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2365 struct wsi_display_connector *connector =
2366 wsi_display_connector_from_handle(display);
2367 int mode;
2368
2369 if (wsi->fd < 0)
2370 return VK_ERROR_INITIALIZATION_FAILED;
2371
2372 switch (display_power_info->powerState) {
2373 case VK_DISPLAY_POWER_STATE_OFF_EXT:
2374 mode = DRM_MODE_DPMS_OFF;
2375 break;
2376 case VK_DISPLAY_POWER_STATE_SUSPEND_EXT:
2377 mode = DRM_MODE_DPMS_SUSPEND;
2378 break;
2379 default:
2380 mode = DRM_MODE_DPMS_ON;
2381 break;
2382 }
2383 drmModeConnectorSetProperty(wsi->fd,
2384 connector->id,
2385 connector->dpms_property,
2386 mode);
2387 return VK_SUCCESS;
2388 }
2389
2390 VkResult
2391 wsi_register_device_event(VkDevice device,
2392 struct wsi_device *wsi_device,
2393 const VkDeviceEventInfoEXT *device_event_info,
2394 const VkAllocationCallbacks *allocator,
2395 struct wsi_fence **fence_p)
2396 {
2397 return VK_ERROR_FEATURE_NOT_PRESENT;
2398 }
2399
2400 VkResult
2401 wsi_register_display_event(VkDevice device,
2402 struct wsi_device *wsi_device,
2403 VkDisplayKHR display,
2404 const VkDisplayEventInfoEXT *display_event_info,
2405 const VkAllocationCallbacks *allocator,
2406 struct wsi_fence **fence_p)
2407 {
2408 struct wsi_display *wsi =
2409 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2410 struct wsi_display_fence *fence;
2411 VkResult ret;
2412
2413 switch (display_event_info->displayEvent) {
2414 case VK_DISPLAY_EVENT_TYPE_FIRST_PIXEL_OUT_EXT:
2415
2416 fence = wsi_display_fence_alloc(device, wsi_device, display, allocator);
2417
2418 if (!fence)
2419 return VK_ERROR_OUT_OF_HOST_MEMORY;
2420
2421 ret = wsi_register_vblank_event(fence, wsi_device, display,
2422 DRM_CRTC_SEQUENCE_RELATIVE, 1, NULL);
2423
2424 if (ret == VK_SUCCESS)
2425 *fence_p = &fence->base;
2426 else if (fence != NULL)
2427 vk_free2(wsi->alloc, allocator, fence);
2428
2429 break;
2430 default:
2431 ret = VK_ERROR_FEATURE_NOT_PRESENT;
2432 break;
2433 }
2434
2435 return ret;
2436 }
2437
2438
2439 VkResult
2440 wsi_get_swapchain_counter(VkDevice device,
2441 struct wsi_device *wsi_device,
2442 VkSwapchainKHR _swapchain,
2443 VkSurfaceCounterFlagBitsEXT flag_bits,
2444 uint64_t *value)
2445 {
2446 struct wsi_display *wsi =
2447 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2448 struct wsi_display_swapchain *swapchain =
2449 (struct wsi_display_swapchain *) wsi_swapchain_from_handle(_swapchain);
2450 struct wsi_display_connector *connector =
2451 wsi_display_mode_from_handle(swapchain->surface->displayMode)->connector;
2452
2453 if (wsi->fd < 0)
2454 return VK_ERROR_INITIALIZATION_FAILED;
2455
2456 if (!connector->active) {
2457 *value = 0;
2458 return VK_SUCCESS;
2459 }
2460
2461 int ret = drmCrtcGetSequence(wsi->fd, connector->crtc_id, value, NULL);
2462 if (ret)
2463 *value = 0;
2464
2465 return VK_SUCCESS;
2466 }
2467