projects / mesa.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
wsi/display: add comment
[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; /* list of all discovered 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 VkBool32* pSupported)
807 {
808 *pSupported = VK_TRUE;
809 return VK_SUCCESS;
810 }
811
812 static VkResult
813 wsi_display_surface_get_capabilities(VkIcdSurfaceBase *surface_base,
814 VkSurfaceCapabilitiesKHR* caps)
815 {
816 VkIcdSurfaceDisplay *surface = (VkIcdSurfaceDisplay *) surface_base;
817 wsi_display_mode *mode = wsi_display_mode_from_handle(surface->displayMode);
818
819 caps->currentExtent.width = mode->hdisplay;
820 caps->currentExtent.height = mode->vdisplay;
821
822 /* XXX Figure out extents based on driver capabilities */
823 caps->maxImageExtent = caps->minImageExtent = caps->currentExtent;
824
825 caps->supportedCompositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
826
827 caps->minImageCount = 2;
828 caps->maxImageCount = 0;
829
830 caps->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
831 caps->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
832 caps->maxImageArrayLayers = 1;
833 caps->supportedUsageFlags =
834 VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
835 VK_IMAGE_USAGE_SAMPLED_BIT |
836 VK_IMAGE_USAGE_TRANSFER_DST_BIT |
837 VK_IMAGE_USAGE_STORAGE_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 VkResult
938 wsi_display_surface_get_present_rectangles(VkIcdSurfaceBase *surface_base,
939 struct wsi_device *wsi_device,
940 uint32_t* pRectCount,
941 VkRect2D* pRects)
942 {
943 VkIcdSurfaceDisplay *surface = (VkIcdSurfaceDisplay *) surface_base;
944 wsi_display_mode *mode = wsi_display_mode_from_handle(surface->displayMode);
945 VK_OUTARRAY_MAKE(out, pRects, pRectCount);
946
947 if (wsi_device_matches_drm_fd(wsi_device, mode->connector->wsi->fd)) {
948 vk_outarray_append(&out, rect) {
949 *rect = (VkRect2D) {
950 .offset = { 0, 0 },
951 .extent = { mode->hdisplay, mode->vdisplay },
952 };
953 }
954 }
955
956 return vk_outarray_status(&out);
957 }
958
959 static void
960 wsi_display_destroy_buffer(struct wsi_display *wsi,
961 uint32_t buffer)
962 {
963 (void) drmIoctl(wsi->fd, DRM_IOCTL_MODE_DESTROY_DUMB,
964 &((struct drm_mode_destroy_dumb) { .handle = buffer }));
965 }
966
967 static VkResult
968 wsi_display_image_init(VkDevice device_h,
969 struct wsi_swapchain *drv_chain,
970 const VkSwapchainCreateInfoKHR *create_info,
971 const VkAllocationCallbacks *allocator,
972 struct wsi_display_image *image)
973 {
974 struct wsi_display_swapchain *chain =
975 (struct wsi_display_swapchain *) drv_chain;
976 struct wsi_display *wsi = chain->wsi;
977 uint32_t drm_format = 0;
978
979 for (unsigned i = 0; i < ARRAY_SIZE(available_surface_formats); i++) {
980 if (create_info->imageFormat == available_surface_formats[i].format) {
981 drm_format = available_surface_formats[i].drm_format;
982 break;
983 }
984 }
985
986 /* the application provided an invalid format, bail */
987 if (drm_format == 0)
988 return VK_ERROR_DEVICE_LOST;
989
990 VkResult result = wsi_create_native_image(&chain->base, create_info,
991 0, NULL, NULL,
992 &image->base);
993 if (result != VK_SUCCESS)
994 return result;
995
996 memset(image->buffer, 0, sizeof (image->buffer));
997
998 for (unsigned int i = 0; i < image->base.num_planes; i++) {
999 int ret = drmPrimeFDToHandle(wsi->fd, image->base.fds[i],
1000 &image->buffer[i]);
1001
1002 close(image->base.fds[i]);
1003 image->base.fds[i] = -1;
1004 if (ret < 0)
1005 goto fail_handle;
1006 }
1007
1008 image->chain = chain;
1009 image->state = WSI_IMAGE_IDLE;
1010 image->fb_id = 0;
1011
1012 int ret = drmModeAddFB2(wsi->fd,
1013 create_info->imageExtent.width,
1014 create_info->imageExtent.height,
1015 drm_format,
1016 image->buffer,
1017 image->base.row_pitches,
1018 image->base.offsets,
1019 &image->fb_id, 0);
1020
1021 if (ret)
1022 goto fail_fb;
1023
1024 return VK_SUCCESS;
1025
1026 fail_fb:
1027 fail_handle:
1028 for (unsigned int i = 0; i < image->base.num_planes; i++) {
1029 if (image->buffer[i])
1030 wsi_display_destroy_buffer(wsi, image->buffer[i]);
1031 if (image->base.fds[i] != -1) {
1032 close(image->base.fds[i]);
1033 image->base.fds[i] = -1;
1034 }
1035 }
1036
1037 wsi_destroy_image(&chain->base, &image->base);
1038
1039 return VK_ERROR_OUT_OF_HOST_MEMORY;
1040 }
1041
1042 static void
1043 wsi_display_image_finish(struct wsi_swapchain *drv_chain,
1044 const VkAllocationCallbacks *allocator,
1045 struct wsi_display_image *image)
1046 {
1047 struct wsi_display_swapchain *chain =
1048 (struct wsi_display_swapchain *) drv_chain;
1049 struct wsi_display *wsi = chain->wsi;
1050
1051 drmModeRmFB(wsi->fd, image->fb_id);
1052 for (unsigned int i = 0; i < image->base.num_planes; i++)
1053 wsi_display_destroy_buffer(wsi, image->buffer[i]);
1054 wsi_destroy_image(&chain->base, &image->base);
1055 }
1056
1057 static VkResult
1058 wsi_display_swapchain_destroy(struct wsi_swapchain *drv_chain,
1059 const VkAllocationCallbacks *allocator)
1060 {
1061 struct wsi_display_swapchain *chain =
1062 (struct wsi_display_swapchain *) drv_chain;
1063
1064 for (uint32_t i = 0; i < chain->base.image_count; i++)
1065 wsi_display_image_finish(drv_chain, allocator, &chain->images[i]);
1066
1067 wsi_swapchain_finish(&chain->base);
1068 vk_free(allocator, chain);
1069 return VK_SUCCESS;
1070 }
1071
1072 static struct wsi_image *
1073 wsi_display_get_wsi_image(struct wsi_swapchain *drv_chain,
1074 uint32_t image_index)
1075 {
1076 struct wsi_display_swapchain *chain =
1077 (struct wsi_display_swapchain *) drv_chain;
1078
1079 return &chain->images[image_index].base;
1080 }
1081
1082 static void
1083 wsi_display_idle_old_displaying(struct wsi_display_image *active_image)
1084 {
1085 struct wsi_display_swapchain *chain = active_image->chain;
1086
1087 wsi_display_debug("idle everyone but %ld\n",
1088 active_image - &(chain->images[0]));
1089 for (uint32_t i = 0; i < chain->base.image_count; i++)
1090 if (chain->images[i].state == WSI_IMAGE_DISPLAYING &&
1091 &chain->images[i] != active_image)
1092 {
1093 wsi_display_debug("idle %d\n", i);
1094 chain->images[i].state = WSI_IMAGE_IDLE;
1095 }
1096 }
1097
1098 static VkResult
1099 _wsi_display_queue_next(struct wsi_swapchain *drv_chain);
1100
1101 static void
1102 wsi_display_page_flip_handler2(int fd,
1103 unsigned int frame,
1104 unsigned int sec,
1105 unsigned int usec,
1106 uint32_t crtc_id,
1107 void *data)
1108 {
1109 struct wsi_display_image *image = data;
1110 struct wsi_display_swapchain *chain = image->chain;
1111
1112 wsi_display_debug("image %ld displayed at %d\n",
1113 image - &(image->chain->images[0]), frame);
1114 image->state = WSI_IMAGE_DISPLAYING;
1115 wsi_display_idle_old_displaying(image);
1116 VkResult result = _wsi_display_queue_next(&(chain->base));
1117 if (result != VK_SUCCESS)
1118 chain->status = result;
1119 }
1120
1121 static void wsi_display_fence_event_handler(struct wsi_display_fence *fence);
1122
1123 static void wsi_display_page_flip_handler(int fd,
1124 unsigned int frame,
1125 unsigned int sec,
1126 unsigned int usec,
1127 void *data)
1128 {
1129 wsi_display_page_flip_handler2(fd, frame, sec, usec, 0, data);
1130 }
1131
1132 static void wsi_display_vblank_handler(int fd, unsigned int frame,
1133 unsigned int sec, unsigned int usec,
1134 void *data)
1135 {
1136 struct wsi_display_fence *fence = data;
1137
1138 wsi_display_fence_event_handler(fence);
1139 }
1140
1141 static void wsi_display_sequence_handler(int fd, uint64_t frame,
1142 uint64_t nsec, uint64_t user_data)
1143 {
1144 struct wsi_display_fence *fence =
1145 (struct wsi_display_fence *) (uintptr_t) user_data;
1146
1147 wsi_display_fence_event_handler(fence);
1148 }
1149
1150 static drmEventContext event_context = {
1151 .version = DRM_EVENT_CONTEXT_VERSION,
1152 .page_flip_handler = wsi_display_page_flip_handler,
1153 #if DRM_EVENT_CONTEXT_VERSION >= 3
1154 .page_flip_handler2 = wsi_display_page_flip_handler2,
1155 #endif
1156 .vblank_handler = wsi_display_vblank_handler,
1157 .sequence_handler = wsi_display_sequence_handler,
1158 };
1159
1160 static void *
1161 wsi_display_wait_thread(void *data)
1162 {
1163 struct wsi_display *wsi = data;
1164 struct pollfd pollfd = {
1165 .fd = wsi->fd,
1166 .events = POLLIN
1167 };
1168
1169 pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
1170 for (;;) {
1171 int ret = poll(&pollfd, 1, -1);
1172 if (ret > 0) {
1173 pthread_mutex_lock(&wsi->wait_mutex);
1174 (void) drmHandleEvent(wsi->fd, &event_context);
1175 pthread_mutex_unlock(&wsi->wait_mutex);
1176 pthread_cond_broadcast(&wsi->wait_cond);
1177 }
1178 }
1179 return NULL;
1180 }
1181
1182 static int
1183 wsi_display_start_wait_thread(struct wsi_display *wsi)
1184 {
1185 if (!wsi->wait_thread) {
1186 int ret = pthread_create(&wsi->wait_thread, NULL,
1187 wsi_display_wait_thread, wsi);
1188 if (ret)
1189 return ret;
1190 }
1191 return 0;
1192 }
1193
1194 /*
1195 * Wait for at least one event from the kernel to be processed.
1196 * Call with wait_mutex held
1197 */
1198 static int
1199 wsi_display_wait_for_event(struct wsi_display *wsi,
1200 uint64_t timeout_ns)
1201 {
1202 int ret;
1203
1204 ret = wsi_display_start_wait_thread(wsi);
1205
1206 if (ret)
1207 return ret;
1208
1209 struct timespec abs_timeout = {
1210 .tv_sec = timeout_ns / 1000000000ULL,
1211 .tv_nsec = timeout_ns % 1000000000ULL,
1212 };
1213
1214 ret = pthread_cond_timedwait(&wsi->wait_cond, &wsi->wait_mutex,
1215 &abs_timeout);
1216
1217 wsi_display_debug("%9ld done waiting for event %d\n", pthread_self(), ret);
1218 return ret;
1219 }
1220
1221 static VkResult
1222 wsi_display_acquire_next_image(struct wsi_swapchain *drv_chain,
1223 const VkAcquireNextImageInfoKHR *info,
1224 uint32_t *image_index)
1225 {
1226 struct wsi_display_swapchain *chain =
1227 (struct wsi_display_swapchain *)drv_chain;
1228 struct wsi_display *wsi = chain->wsi;
1229 int ret = 0;
1230 VkResult result = VK_SUCCESS;
1231
1232 /* Bail early if the swapchain is broken */
1233 if (chain->status != VK_SUCCESS)
1234 return chain->status;
1235
1236 uint64_t timeout = info->timeout;
1237 if (timeout != 0 && timeout != UINT64_MAX)
1238 timeout = wsi_rel_to_abs_time(timeout);
1239
1240 pthread_mutex_lock(&wsi->wait_mutex);
1241 for (;;) {
1242 for (uint32_t i = 0; i < chain->base.image_count; i++) {
1243 if (chain->images[i].state == WSI_IMAGE_IDLE) {
1244 *image_index = i;
1245 wsi_display_debug("image %d available\n", i);
1246 chain->images[i].state = WSI_IMAGE_DRAWING;
1247 result = VK_SUCCESS;
1248 goto done;
1249 }
1250 wsi_display_debug("image %d state %d\n", i, chain->images[i].state);
1251 }
1252
1253 if (ret == ETIMEDOUT) {
1254 result = VK_TIMEOUT;
1255 goto done;
1256 }
1257
1258 ret = wsi_display_wait_for_event(wsi, timeout);
1259
1260 if (ret && ret != ETIMEDOUT) {
1261 result = VK_ERROR_SURFACE_LOST_KHR;
1262 goto done;
1263 }
1264 }
1265 done:
1266 pthread_mutex_unlock(&wsi->wait_mutex);
1267
1268 if (result != VK_SUCCESS)
1269 return result;
1270
1271 return chain->status;
1272 }
1273
1274 /*
1275 * Check whether there are any other connectors driven by this crtc
1276 */
1277 static bool
1278 wsi_display_crtc_solo(struct wsi_display *wsi,
1279 drmModeResPtr mode_res,
1280 drmModeConnectorPtr connector,
1281 uint32_t crtc_id)
1282 {
1283 /* See if any other connectors share the same encoder */
1284 for (int c = 0; c < mode_res->count_connectors; c++) {
1285 if (mode_res->connectors[c] == connector->connector_id)
1286 continue;
1287
1288 drmModeConnectorPtr other_connector =
1289 drmModeGetConnector(wsi->fd, mode_res->connectors[c]);
1290
1291 if (other_connector) {
1292 bool match = (other_connector->encoder_id == connector->encoder_id);
1293 drmModeFreeConnector(other_connector);
1294 if (match)
1295 return false;
1296 }
1297 }
1298
1299 /* See if any other encoders share the same crtc */
1300 for (int e = 0; e < mode_res->count_encoders; e++) {
1301 if (mode_res->encoders[e] == connector->encoder_id)
1302 continue;
1303
1304 drmModeEncoderPtr other_encoder =
1305 drmModeGetEncoder(wsi->fd, mode_res->encoders[e]);
1306
1307 if (other_encoder) {
1308 bool match = (other_encoder->crtc_id == crtc_id);
1309 drmModeFreeEncoder(other_encoder);
1310 if (match)
1311 return false;
1312 }
1313 }
1314 return true;
1315 }
1316
1317 /*
1318 * Pick a suitable CRTC to drive this connector. Prefer a CRTC which is
1319 * currently driving this connector and not any others. Settle for a CRTC
1320 * which is currently idle.
1321 */
1322 static uint32_t
1323 wsi_display_select_crtc(const struct wsi_display_connector *connector,
1324 drmModeResPtr mode_res,
1325 drmModeConnectorPtr drm_connector)
1326 {
1327 struct wsi_display *wsi = connector->wsi;
1328
1329 /* See what CRTC is currently driving this connector */
1330 if (drm_connector->encoder_id) {
1331 drmModeEncoderPtr encoder =
1332 drmModeGetEncoder(wsi->fd, drm_connector->encoder_id);
1333
1334 if (encoder) {
1335 uint32_t crtc_id = encoder->crtc_id;
1336 drmModeFreeEncoder(encoder);
1337 if (crtc_id) {
1338 if (wsi_display_crtc_solo(wsi, mode_res, drm_connector, crtc_id))
1339 return crtc_id;
1340 }
1341 }
1342 }
1343 uint32_t crtc_id = 0;
1344 for (int c = 0; crtc_id == 0 && c < mode_res->count_crtcs; c++) {
1345 drmModeCrtcPtr crtc = drmModeGetCrtc(wsi->fd, mode_res->crtcs[c]);
1346 if (crtc && crtc->buffer_id == 0)
1347 crtc_id = crtc->crtc_id;
1348 drmModeFreeCrtc(crtc);
1349 }
1350 return crtc_id;
1351 }
1352
1353 static VkResult
1354 wsi_display_setup_connector(wsi_display_connector *connector,
1355 wsi_display_mode *display_mode)
1356 {
1357 struct wsi_display *wsi = connector->wsi;
1358
1359 if (connector->current_mode == display_mode && connector->crtc_id)
1360 return VK_SUCCESS;
1361
1362 VkResult result = VK_SUCCESS;
1363
1364 drmModeResPtr mode_res = drmModeGetResources(wsi->fd);
1365 if (!mode_res) {
1366 if (errno == ENOMEM)
1367 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1368 else
1369 result = VK_ERROR_SURFACE_LOST_KHR;
1370 goto bail;
1371 }
1372
1373 drmModeConnectorPtr drm_connector =
1374 drmModeGetConnectorCurrent(wsi->fd, connector->id);
1375
1376 if (!drm_connector) {
1377 if (errno == ENOMEM)
1378 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1379 else
1380 result = VK_ERROR_SURFACE_LOST_KHR;
1381 goto bail_mode_res;
1382 }
1383
1384 /* Pick a CRTC if we don't have one */
1385 if (!connector->crtc_id) {
1386 connector->crtc_id = wsi_display_select_crtc(connector,
1387 mode_res, drm_connector);
1388 if (!connector->crtc_id) {
1389 result = VK_ERROR_SURFACE_LOST_KHR;
1390 goto bail_connector;
1391 }
1392 }
1393
1394 if (connector->current_mode != display_mode) {
1395
1396 /* Find the drm mode corresponding to the requested VkDisplayMode */
1397 drmModeModeInfoPtr drm_mode = NULL;
1398
1399 for (int m = 0; m < drm_connector->count_modes; m++) {
1400 drm_mode = &drm_connector->modes[m];
1401 if (wsi_display_mode_matches_drm(display_mode, drm_mode))
1402 break;
1403 drm_mode = NULL;
1404 }
1405
1406 if (!drm_mode) {
1407 result = VK_ERROR_SURFACE_LOST_KHR;
1408 goto bail_connector;
1409 }
1410
1411 connector->current_mode = display_mode;
1412 connector->current_drm_mode = *drm_mode;
1413 }
1414
1415 bail_connector:
1416 drmModeFreeConnector(drm_connector);
1417 bail_mode_res:
1418 drmModeFreeResources(mode_res);
1419 bail:
1420 return result;
1421
1422 }
1423
1424 static VkResult
1425 wsi_display_fence_wait(struct wsi_fence *fence_wsi, uint64_t timeout)
1426 {
1427 const struct wsi_device *wsi_device = fence_wsi->wsi_device;
1428 struct wsi_display *wsi =
1429 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1430 struct wsi_display_fence *fence = (struct wsi_display_fence *) fence_wsi;
1431
1432 wsi_display_debug("%9lu wait fence %lu %ld\n",
1433 pthread_self(), fence->sequence,
1434 (int64_t) (timeout - wsi_get_current_monotonic()));
1435 wsi_display_debug_code(uint64_t start_ns = wsi_get_current_monotonic());
1436 pthread_mutex_lock(&wsi->wait_mutex);
1437
1438 VkResult result;
1439 int ret = 0;
1440 for (;;) {
1441 if (fence->event_received) {
1442 wsi_display_debug("%9lu fence %lu passed\n",
1443 pthread_self(), fence->sequence);
1444 result = VK_SUCCESS;
1445 break;
1446 }
1447
1448 if (ret == ETIMEDOUT) {
1449 wsi_display_debug("%9lu fence %lu timeout\n",
1450 pthread_self(), fence->sequence);
1451 result = VK_TIMEOUT;
1452 break;
1453 }
1454
1455 ret = wsi_display_wait_for_event(wsi, timeout);
1456
1457 if (ret && ret != ETIMEDOUT) {
1458 wsi_display_debug("%9lu fence %lu error\n",
1459 pthread_self(), fence->sequence);
1460 result = VK_ERROR_DEVICE_LOST;
1461 break;
1462 }
1463 }
1464 pthread_mutex_unlock(&wsi->wait_mutex);
1465 wsi_display_debug("%9lu fence wait %f ms\n",
1466 pthread_self(),
1467 ((int64_t) (wsi_get_current_monotonic() - start_ns)) /
1468 1.0e6);
1469 return result;
1470 }
1471
1472 static void
1473 wsi_display_fence_check_free(struct wsi_display_fence *fence)
1474 {
1475 if (fence->event_received && fence->destroyed)
1476 vk_free(fence->base.alloc, fence);
1477 }
1478
1479 static void wsi_display_fence_event_handler(struct wsi_display_fence *fence)
1480 {
1481 fence->event_received = true;
1482 wsi_display_fence_check_free(fence);
1483 }
1484
1485 static void
1486 wsi_display_fence_destroy(struct wsi_fence *fence_wsi)
1487 {
1488 struct wsi_display_fence *fence = (struct wsi_display_fence *) fence_wsi;
1489
1490 assert(!fence->destroyed);
1491 fence->destroyed = true;
1492 wsi_display_fence_check_free(fence);
1493 }
1494
1495 static struct wsi_display_fence *
1496 wsi_display_fence_alloc(VkDevice device,
1497 const struct wsi_device *wsi_device,
1498 VkDisplayKHR display,
1499 const VkAllocationCallbacks *allocator)
1500 {
1501 struct wsi_display *wsi =
1502 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1503 struct wsi_display_fence *fence =
1504 vk_zalloc2(wsi->alloc, allocator, sizeof (*fence),
1505 8, VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
1506
1507 if (!fence)
1508 return NULL;
1509
1510 fence->base.device = device;
1511 fence->base.display = display;
1512 fence->base.wsi_device = wsi_device;
1513 fence->base.alloc = allocator ? allocator : wsi->alloc;
1514 fence->base.wait = wsi_display_fence_wait;
1515 fence->base.destroy = wsi_display_fence_destroy;
1516 fence->event_received = false;
1517 fence->destroyed = false;
1518 fence->sequence = ++fence_sequence;
1519 return fence;
1520 }
1521
1522 static VkResult
1523 wsi_register_vblank_event(struct wsi_display_fence *fence,
1524 const struct wsi_device *wsi_device,
1525 VkDisplayKHR display,
1526 uint32_t flags,
1527 uint64_t frame_requested,
1528 uint64_t *frame_queued)
1529 {
1530 struct wsi_display *wsi =
1531 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1532 struct wsi_display_connector *connector =
1533 wsi_display_connector_from_handle(display);
1534
1535 if (wsi->fd < 0)
1536 return VK_ERROR_INITIALIZATION_FAILED;
1537
1538 for (;;) {
1539 int ret = drmCrtcQueueSequence(wsi->fd, connector->crtc_id,
1540 flags,
1541 frame_requested,
1542 frame_queued,
1543 (uintptr_t) fence);
1544
1545 if (!ret)
1546 return VK_SUCCESS;
1547
1548 if (errno != ENOMEM) {
1549
1550 /* Something unexpected happened. Pause for a moment so the
1551 * application doesn't just spin and then return a failure indication
1552 */
1553
1554 wsi_display_debug("queue vblank event %lu failed\n", fence->sequence);
1555 struct timespec delay = {
1556 .tv_sec = 0,
1557 .tv_nsec = 100000000ull,
1558 };
1559 nanosleep(&delay, NULL);
1560 return VK_ERROR_OUT_OF_HOST_MEMORY;
1561 }
1562
1563 /* The kernel event queue is full. Wait for some events to be
1564 * processed and try again
1565 */
1566
1567 pthread_mutex_lock(&wsi->wait_mutex);
1568 ret = wsi_display_wait_for_event(wsi, wsi_rel_to_abs_time(100000000ull));
1569 pthread_mutex_unlock(&wsi->wait_mutex);
1570
1571 if (ret) {
1572 wsi_display_debug("vblank queue full, event wait failed\n");
1573 return VK_ERROR_OUT_OF_HOST_MEMORY;
1574 }
1575 }
1576 }
1577
1578 /*
1579 * Check to see if the kernel has no flip queued and if there's an image
1580 * waiting to be displayed.
1581 */
1582 static VkResult
1583 _wsi_display_queue_next(struct wsi_swapchain *drv_chain)
1584 {
1585 struct wsi_display_swapchain *chain =
1586 (struct wsi_display_swapchain *) drv_chain;
1587 struct wsi_display *wsi = chain->wsi;
1588 VkIcdSurfaceDisplay *surface = chain->surface;
1589 wsi_display_mode *display_mode =
1590 wsi_display_mode_from_handle(surface->displayMode);
1591 wsi_display_connector *connector = display_mode->connector;
1592
1593 if (wsi->fd < 0)
1594 return VK_ERROR_SURFACE_LOST_KHR;
1595
1596 if (display_mode != connector->current_mode)
1597 connector->active = false;
1598
1599 for (;;) {
1600
1601 /* Check to see if there is an image to display, or if some image is
1602 * already queued */
1603
1604 struct wsi_display_image *image = NULL;
1605
1606 for (uint32_t i = 0; i < chain->base.image_count; i++) {
1607 struct wsi_display_image *tmp_image = &chain->images[i];
1608
1609 switch (tmp_image->state) {
1610 case WSI_IMAGE_FLIPPING:
1611 /* already flipping, don't send another to the kernel yet */
1612 return VK_SUCCESS;
1613 case WSI_IMAGE_QUEUED:
1614 /* find the oldest queued */
1615 if (!image || tmp_image->flip_sequence < image->flip_sequence)
1616 image = tmp_image;
1617 break;
1618 default:
1619 break;
1620 }
1621 }
1622
1623 if (!image)
1624 return VK_SUCCESS;
1625
1626 int ret;
1627 if (connector->active) {
1628 ret = drmModePageFlip(wsi->fd, connector->crtc_id, image->fb_id,
1629 DRM_MODE_PAGE_FLIP_EVENT, image);
1630 if (ret == 0) {
1631 image->state = WSI_IMAGE_FLIPPING;
1632 return VK_SUCCESS;
1633 }
1634 wsi_display_debug("page flip err %d %s\n", ret, strerror(-ret));
1635 } else {
1636 ret = -EINVAL;
1637 }
1638
1639 if (ret == -EINVAL) {
1640 VkResult result = wsi_display_setup_connector(connector, display_mode);
1641
1642 if (result != VK_SUCCESS) {
1643 image->state = WSI_IMAGE_IDLE;
1644 return result;
1645 }
1646
1647 /* XXX allow setting of position */
1648 ret = drmModeSetCrtc(wsi->fd, connector->crtc_id,
1649 image->fb_id, 0, 0,
1650 &connector->id, 1,
1651 &connector->current_drm_mode);
1652 if (ret == 0) {
1653 /* Assume that the mode set is synchronous and that any
1654 * previous image is now idle.
1655 */
1656 image->state = WSI_IMAGE_DISPLAYING;
1657 wsi_display_idle_old_displaying(image);
1658 connector->active = true;
1659 return VK_SUCCESS;
1660 }
1661 }
1662
1663 if (ret != -EACCES) {
1664 connector->active = false;
1665 image->state = WSI_IMAGE_IDLE;
1666 return VK_ERROR_SURFACE_LOST_KHR;
1667 }
1668
1669 /* Some other VT is currently active. Sit here waiting for
1670 * our VT to become active again by polling once a second
1671 */
1672 usleep(1000 * 1000);
1673 connector->active = false;
1674 }
1675 }
1676
1677 static VkResult
1678 wsi_display_queue_present(struct wsi_swapchain *drv_chain,
1679 uint32_t image_index,
1680 const VkPresentRegionKHR *damage)
1681 {
1682 struct wsi_display_swapchain *chain =
1683 (struct wsi_display_swapchain *) drv_chain;
1684 struct wsi_display *wsi = chain->wsi;
1685 struct wsi_display_image *image = &chain->images[image_index];
1686 VkResult result;
1687
1688 /* Bail early if the swapchain is broken */
1689 if (chain->status != VK_SUCCESS)
1690 return chain->status;
1691
1692 assert(image->state == WSI_IMAGE_DRAWING);
1693 wsi_display_debug("present %d\n", image_index);
1694
1695 pthread_mutex_lock(&wsi->wait_mutex);
1696
1697 image->flip_sequence = ++chain->flip_sequence;
1698 image->state = WSI_IMAGE_QUEUED;
1699
1700 result = _wsi_display_queue_next(drv_chain);
1701 if (result != VK_SUCCESS)
1702 chain->status = result;
1703
1704 pthread_mutex_unlock(&wsi->wait_mutex);
1705
1706 if (result != VK_SUCCESS)
1707 return result;
1708
1709 return chain->status;
1710 }
1711
1712 static VkResult
1713 wsi_display_surface_create_swapchain(
1714 VkIcdSurfaceBase *icd_surface,
1715 VkDevice device,
1716 struct wsi_device *wsi_device,
1717 const VkSwapchainCreateInfoKHR *create_info,
1718 const VkAllocationCallbacks *allocator,
1719 struct wsi_swapchain **swapchain_out)
1720 {
1721 struct wsi_display *wsi =
1722 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1723
1724 assert(create_info->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
1725
1726 const unsigned num_images = create_info->minImageCount;
1727 struct wsi_display_swapchain *chain =
1728 vk_zalloc(allocator,
1729 sizeof(*chain) + num_images * sizeof(chain->images[0]),
1730 8, VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
1731
1732 if (chain == NULL)
1733 return VK_ERROR_OUT_OF_HOST_MEMORY;
1734
1735 VkResult result = wsi_swapchain_init(wsi_device, &chain->base, device,
1736 create_info, allocator);
1737 if (result != VK_SUCCESS) {
1738 vk_free(allocator, chain);
1739 return result;
1740 }
1741
1742 chain->base.destroy = wsi_display_swapchain_destroy;
1743 chain->base.get_wsi_image = wsi_display_get_wsi_image;
1744 chain->base.acquire_next_image = wsi_display_acquire_next_image;
1745 chain->base.queue_present = wsi_display_queue_present;
1746 chain->base.present_mode = create_info->presentMode;
1747 chain->base.image_count = num_images;
1748
1749 chain->wsi = wsi;
1750 chain->status = VK_SUCCESS;
1751
1752 chain->surface = (VkIcdSurfaceDisplay *) icd_surface;
1753
1754 for (uint32_t image = 0; image < chain->base.image_count; image++) {
1755 result = wsi_display_image_init(device, &chain->base,
1756 create_info, allocator,
1757 &chain->images[image]);
1758 if (result != VK_SUCCESS) {
1759 while (image > 0) {
1760 --image;
1761 wsi_display_image_finish(&chain->base, allocator,
1762 &chain->images[image]);
1763 }
1764 vk_free(allocator, chain);
1765 goto fail_init_images;
1766 }
1767 }
1768
1769 *swapchain_out = &chain->base;
1770
1771 return VK_SUCCESS;
1772
1773 fail_init_images:
1774 return result;
1775 }
1776
1777 static bool
1778 wsi_init_pthread_cond_monotonic(pthread_cond_t *cond)
1779 {
1780 pthread_condattr_t condattr;
1781 bool ret = false;
1782
1783 if (pthread_condattr_init(&condattr) != 0)
1784 goto fail_attr_init;
1785
1786 if (pthread_condattr_setclock(&condattr, CLOCK_MONOTONIC) != 0)
1787 goto fail_attr_set;
1788
1789 if (pthread_cond_init(cond, &condattr) != 0)
1790 goto fail_cond_init;
1791
1792 ret = true;
1793
1794 fail_cond_init:
1795 fail_attr_set:
1796 pthread_condattr_destroy(&condattr);
1797 fail_attr_init:
1798 return ret;
1799 }
1800
1801 VkResult
1802 wsi_display_init_wsi(struct wsi_device *wsi_device,
1803 const VkAllocationCallbacks *alloc,
1804 int display_fd)
1805 {
1806 struct wsi_display *wsi = vk_zalloc(alloc, sizeof(*wsi), 8,
1807 VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
1808 VkResult result;
1809
1810 if (!wsi) {
1811 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1812 goto fail;
1813 }
1814
1815 wsi->fd = display_fd;
1816 wsi->alloc = alloc;
1817
1818 list_inithead(&wsi->connectors);
1819
1820 int ret = pthread_mutex_init(&wsi->wait_mutex, NULL);
1821 if (ret) {
1822 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1823 goto fail_mutex;
1824 }
1825
1826 if (!wsi_init_pthread_cond_monotonic(&wsi->wait_cond)) {
1827 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1828 goto fail_cond;
1829 }
1830
1831 wsi->base.get_support = wsi_display_surface_get_support;
1832 wsi->base.get_capabilities2 = wsi_display_surface_get_capabilities2;
1833 wsi->base.get_formats = wsi_display_surface_get_formats;
1834 wsi->base.get_formats2 = wsi_display_surface_get_formats2;
1835 wsi->base.get_present_modes = wsi_display_surface_get_present_modes;
1836 wsi->base.get_present_rectangles = wsi_display_surface_get_present_rectangles;
1837 wsi->base.create_swapchain = wsi_display_surface_create_swapchain;
1838
1839 wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY] = &wsi->base;
1840
1841 return VK_SUCCESS;
1842
1843 fail_cond:
1844 pthread_mutex_destroy(&wsi->wait_mutex);
1845 fail_mutex:
1846 vk_free(alloc, wsi);
1847 fail:
1848 return result;
1849 }
1850
1851 void
1852 wsi_display_finish_wsi(struct wsi_device *wsi_device,
1853 const VkAllocationCallbacks *alloc)
1854 {
1855 struct wsi_display *wsi =
1856 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1857
1858 if (wsi) {
1859 wsi_for_each_connector(connector, wsi) {
1860 wsi_for_each_display_mode(mode, connector) {
1861 vk_free(wsi->alloc, mode);
1862 }
1863 vk_free(wsi->alloc, connector);
1864 }
1865
1866 pthread_mutex_lock(&wsi->wait_mutex);
1867 if (wsi->wait_thread) {
1868 pthread_cancel(wsi->wait_thread);
1869 pthread_join(wsi->wait_thread, NULL);
1870 }
1871 pthread_mutex_unlock(&wsi->wait_mutex);
1872 pthread_mutex_destroy(&wsi->wait_mutex);
1873 pthread_cond_destroy(&wsi->wait_cond);
1874
1875 vk_free(alloc, wsi);
1876 }
1877 }
1878
1879 /*
1880 * Implement vkReleaseDisplay
1881 */
1882 VkResult
1883 wsi_release_display(VkPhysicalDevice physical_device,
1884 struct wsi_device *wsi_device,
1885 VkDisplayKHR display)
1886 {
1887 struct wsi_display *wsi =
1888 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1889
1890 if (wsi->fd >= 0) {
1891 close(wsi->fd);
1892 wsi->fd = -1;
1893 }
1894 #ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
1895 wsi_display_connector_from_handle(display)->output = None;
1896 #endif
1897
1898 return VK_SUCCESS;
1899 }
1900
1901 #ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
1902
1903 static struct wsi_display_connector *
1904 wsi_display_find_output(struct wsi_device *wsi_device,
1905 xcb_randr_output_t output)
1906 {
1907 struct wsi_display *wsi =
1908 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1909
1910 wsi_for_each_connector(connector, wsi) {
1911 if (connector->output == output)
1912 return connector;
1913 }
1914
1915 return NULL;
1916 }
1917
1918 /*
1919 * Given a RandR output, find the associated kernel connector_id by
1920 * looking at the CONNECTOR_ID property provided by the X server
1921 */
1922
1923 static uint32_t
1924 wsi_display_output_to_connector_id(xcb_connection_t *connection,
1925 xcb_atom_t *connector_id_atom_p,
1926 xcb_randr_output_t output)
1927 {
1928 uint32_t connector_id = 0;
1929 xcb_atom_t connector_id_atom = *connector_id_atom_p;
1930
1931 if (connector_id_atom == 0) {
1932 /* Go dig out the CONNECTOR_ID property */
1933 xcb_intern_atom_cookie_t ia_c = xcb_intern_atom(connection,
1934 true,
1935 12,
1936 "CONNECTOR_ID");
1937 xcb_intern_atom_reply_t *ia_r = xcb_intern_atom_reply(connection,
1938 ia_c,
1939 NULL);
1940 if (ia_r) {
1941 *connector_id_atom_p = connector_id_atom = ia_r->atom;
1942 free(ia_r);
1943 }
1944 }
1945
1946 /* If there's an CONNECTOR_ID atom in the server, then there may be a
1947 * CONNECTOR_ID property. Otherwise, there will not be and we don't even
1948 * need to bother.
1949 */
1950 if (connector_id_atom) {
1951
1952 xcb_randr_query_version_cookie_t qv_c =
1953 xcb_randr_query_version(connection, 1, 6);
1954 xcb_randr_get_output_property_cookie_t gop_c =
1955 xcb_randr_get_output_property(connection,
1956 output,
1957 connector_id_atom,
1958 0,
1959 0,
1960 0xffffffffUL,
1961 0,
1962 0);
1963 xcb_randr_query_version_reply_t *qv_r =
1964 xcb_randr_query_version_reply(connection, qv_c, NULL);
1965 free(qv_r);
1966 xcb_randr_get_output_property_reply_t *gop_r =
1967 xcb_randr_get_output_property_reply(connection, gop_c, NULL);
1968 if (gop_r) {
1969 if (gop_r->num_items == 1 && gop_r->format == 32)
1970 memcpy(&connector_id, xcb_randr_get_output_property_data(gop_r), 4);
1971 free(gop_r);
1972 }
1973 }
1974 return connector_id;
1975 }
1976
1977 static bool
1978 wsi_display_check_randr_version(xcb_connection_t *connection)
1979 {
1980 xcb_randr_query_version_cookie_t qv_c =
1981 xcb_randr_query_version(connection, 1, 6);
1982 xcb_randr_query_version_reply_t *qv_r =
1983 xcb_randr_query_version_reply(connection, qv_c, NULL);
1984 bool ret = false;
1985
1986 if (!qv_r)
1987 return false;
1988
1989 /* Check for version 1.6 or newer */
1990 ret = (qv_r->major_version > 1 ||
1991 (qv_r->major_version == 1 && qv_r->minor_version >= 6));
1992
1993 free(qv_r);
1994 return ret;
1995 }
1996
1997 /*
1998 * Given a kernel connector id, find the associated RandR output using the
1999 * CONNECTOR_ID property
2000 */
2001
2002 static xcb_randr_output_t
2003 wsi_display_connector_id_to_output(xcb_connection_t *connection,
2004 uint32_t connector_id)
2005 {
2006 if (!wsi_display_check_randr_version(connection))
2007 return 0;
2008
2009 const xcb_setup_t *setup = xcb_get_setup(connection);
2010
2011 xcb_atom_t connector_id_atom = 0;
2012 xcb_randr_output_t output = 0;
2013
2014 /* Search all of the screens for the provided output */
2015 xcb_screen_iterator_t iter;
2016 for (iter = xcb_setup_roots_iterator(setup);
2017 output == 0 && iter.rem;
2018 xcb_screen_next(&iter))
2019 {
2020 xcb_randr_get_screen_resources_cookie_t gsr_c =
2021 xcb_randr_get_screen_resources(connection, iter.data->root);
2022 xcb_randr_get_screen_resources_reply_t *gsr_r =
2023 xcb_randr_get_screen_resources_reply(connection, gsr_c, NULL);
2024
2025 if (!gsr_r)
2026 return 0;
2027
2028 xcb_randr_output_t *ro = xcb_randr_get_screen_resources_outputs(gsr_r);
2029 int o;
2030
2031 for (o = 0; o < gsr_r->num_outputs; o++) {
2032 if (wsi_display_output_to_connector_id(connection,
2033 &connector_id_atom, ro[o])
2034 == connector_id)
2035 {
2036 output = ro[o];
2037 break;
2038 }
2039 }
2040 free(gsr_r);
2041 }
2042 return output;
2043 }
2044
2045 /*
2046 * Given a RandR output, find out which screen it's associated with
2047 */
2048 static xcb_window_t
2049 wsi_display_output_to_root(xcb_connection_t *connection,
2050 xcb_randr_output_t output)
2051 {
2052 if (!wsi_display_check_randr_version(connection))
2053 return 0;
2054
2055 const xcb_setup_t *setup = xcb_get_setup(connection);
2056 xcb_window_t root = 0;
2057
2058 /* Search all of the screens for the provided output */
2059 for (xcb_screen_iterator_t iter = xcb_setup_roots_iterator(setup);
2060 root == 0 && iter.rem;
2061 xcb_screen_next(&iter))
2062 {
2063 xcb_randr_get_screen_resources_cookie_t gsr_c =
2064 xcb_randr_get_screen_resources(connection, iter.data->root);
2065 xcb_randr_get_screen_resources_reply_t *gsr_r =
2066 xcb_randr_get_screen_resources_reply(connection, gsr_c, NULL);
2067
2068 if (!gsr_r)
2069 return 0;
2070
2071 xcb_randr_output_t *ro = xcb_randr_get_screen_resources_outputs(gsr_r);
2072
2073 for (int o = 0; o < gsr_r->num_outputs; o++) {
2074 if (ro[o] == output) {
2075 root = iter.data->root;
2076 break;
2077 }
2078 }
2079 free(gsr_r);
2080 }
2081 return root;
2082 }
2083
2084 static bool
2085 wsi_display_mode_matches_x(struct wsi_display_mode *wsi,
2086 xcb_randr_mode_info_t *xcb)
2087 {
2088 return wsi->clock == (xcb->dot_clock + 500) / 1000 &&
2089 wsi->hdisplay == xcb->width &&
2090 wsi->hsync_start == xcb->hsync_start &&
2091 wsi->hsync_end == xcb->hsync_end &&
2092 wsi->htotal == xcb->htotal &&
2093 wsi->hskew == xcb->hskew &&
2094 wsi->vdisplay == xcb->height &&
2095 wsi->vsync_start == xcb->vsync_start &&
2096 wsi->vsync_end == xcb->vsync_end &&
2097 wsi->vtotal == xcb->vtotal &&
2098 wsi->vscan <= 1 &&
2099 wsi->flags == xcb->mode_flags;
2100 }
2101
2102 static struct wsi_display_mode *
2103 wsi_display_find_x_mode(struct wsi_device *wsi_device,
2104 struct wsi_display_connector *connector,
2105 xcb_randr_mode_info_t *mode)
2106 {
2107 wsi_for_each_display_mode(display_mode, connector) {
2108 if (wsi_display_mode_matches_x(display_mode, mode))
2109 return display_mode;
2110 }
2111 return NULL;
2112 }
2113
2114 static VkResult
2115 wsi_display_register_x_mode(struct wsi_device *wsi_device,
2116 struct wsi_display_connector *connector,
2117 xcb_randr_mode_info_t *x_mode,
2118 bool preferred)
2119 {
2120 struct wsi_display *wsi =
2121 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2122 struct wsi_display_mode *display_mode =
2123 wsi_display_find_x_mode(wsi_device, connector, x_mode);
2124
2125 if (display_mode) {
2126 display_mode->valid = true;
2127 return VK_SUCCESS;
2128 }
2129
2130 display_mode = vk_zalloc(wsi->alloc, sizeof (struct wsi_display_mode),
2131 8, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
2132 if (!display_mode)
2133 return VK_ERROR_OUT_OF_HOST_MEMORY;
2134
2135 display_mode->connector = connector;
2136 display_mode->valid = true;
2137 display_mode->preferred = preferred;
2138 display_mode->clock = (x_mode->dot_clock + 500) / 1000; /* kHz */
2139 display_mode->hdisplay = x_mode->width;
2140 display_mode->hsync_start = x_mode->hsync_start;
2141 display_mode->hsync_end = x_mode->hsync_end;
2142 display_mode->htotal = x_mode->htotal;
2143 display_mode->hskew = x_mode->hskew;
2144 display_mode->vdisplay = x_mode->height;
2145 display_mode->vsync_start = x_mode->vsync_start;
2146 display_mode->vsync_end = x_mode->vsync_end;
2147 display_mode->vtotal = x_mode->vtotal;
2148 display_mode->vscan = 0;
2149 display_mode->flags = x_mode->mode_flags;
2150
2151 list_addtail(&display_mode->list, &connector->display_modes);
2152 return VK_SUCCESS;
2153 }
2154
2155 static struct wsi_display_connector *
2156 wsi_display_get_output(struct wsi_device *wsi_device,
2157 xcb_connection_t *connection,
2158 xcb_randr_output_t output)
2159 {
2160 struct wsi_display *wsi =
2161 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2162 struct wsi_display_connector *connector;
2163 uint32_t connector_id;
2164
2165 xcb_window_t root = wsi_display_output_to_root(connection, output);
2166 if (!root)
2167 return NULL;
2168
2169 /* See if we already have a connector for this output */
2170 connector = wsi_display_find_output(wsi_device, output);
2171
2172 if (!connector) {
2173 xcb_atom_t connector_id_atom = 0;
2174
2175 /*
2176 * Go get the kernel connector ID for this X output
2177 */
2178 connector_id = wsi_display_output_to_connector_id(connection,
2179 &connector_id_atom,
2180 output);
2181
2182 /* Any X server with lease support will have this atom */
2183 if (!connector_id) {
2184 return NULL;
2185 }
2186
2187 /* See if we already have a connector for this id */
2188 connector = wsi_display_find_connector(wsi_device, connector_id);
2189
2190 if (connector == NULL) {
2191 connector = wsi_display_alloc_connector(wsi, connector_id);
2192 if (!connector) {
2193 return NULL;
2194 }
2195 list_addtail(&connector->list, &wsi->connectors);
2196 }
2197 connector->output = output;
2198 }
2199
2200 xcb_randr_get_screen_resources_cookie_t src =
2201 xcb_randr_get_screen_resources(connection, root);
2202 xcb_randr_get_output_info_cookie_t oic =
2203 xcb_randr_get_output_info(connection, output, XCB_CURRENT_TIME);
2204 xcb_randr_get_screen_resources_reply_t *srr =
2205 xcb_randr_get_screen_resources_reply(connection, src, NULL);
2206 xcb_randr_get_output_info_reply_t *oir =
2207 xcb_randr_get_output_info_reply(connection, oic, NULL);
2208
2209 if (oir && srr) {
2210 /* Get X modes and add them */
2211
2212 connector->connected =
2213 oir->connection != XCB_RANDR_CONNECTION_DISCONNECTED;
2214
2215 wsi_display_invalidate_connector_modes(wsi_device, connector);
2216
2217 xcb_randr_mode_t *x_modes = xcb_randr_get_output_info_modes(oir);
2218 for (int m = 0; m < oir->num_modes; m++) {
2219 xcb_randr_mode_info_iterator_t i =
2220 xcb_randr_get_screen_resources_modes_iterator(srr);
2221 while (i.rem) {
2222 xcb_randr_mode_info_t *mi = i.data;
2223 if (mi->id == x_modes[m]) {
2224 VkResult result = wsi_display_register_x_mode(
2225 wsi_device, connector, mi, m < oir->num_preferred);
2226 if (result != VK_SUCCESS) {
2227 free(oir);
2228 free(srr);
2229 return NULL;
2230 }
2231 break;
2232 }
2233 xcb_randr_mode_info_next(&i);
2234 }
2235 }
2236 }
2237
2238 free(oir);
2239 free(srr);
2240 return connector;
2241 }
2242
2243 static xcb_randr_crtc_t
2244 wsi_display_find_crtc_for_output(xcb_connection_t *connection,
2245 xcb_window_t root,
2246 xcb_randr_output_t output)
2247 {
2248 xcb_randr_get_screen_resources_cookie_t gsr_c =
2249 xcb_randr_get_screen_resources(connection, root);
2250 xcb_randr_get_screen_resources_reply_t *gsr_r =
2251 xcb_randr_get_screen_resources_reply(connection, gsr_c, NULL);
2252
2253 if (!gsr_r)
2254 return 0;
2255
2256 xcb_randr_crtc_t *rc = xcb_randr_get_screen_resources_crtcs(gsr_r);
2257 xcb_randr_crtc_t idle_crtc = 0;
2258 xcb_randr_crtc_t active_crtc = 0;
2259
2260 /* Find either a crtc already connected to the desired output or idle */
2261 for (int c = 0; active_crtc == 0 && c < gsr_r->num_crtcs; c++) {
2262 xcb_randr_get_crtc_info_cookie_t gci_c =
2263 xcb_randr_get_crtc_info(connection, rc[c], gsr_r->config_timestamp);
2264 xcb_randr_get_crtc_info_reply_t *gci_r =
2265 xcb_randr_get_crtc_info_reply(connection, gci_c, NULL);
2266
2267 if (gci_r) {
2268 if (gci_r->mode) {
2269 int num_outputs = xcb_randr_get_crtc_info_outputs_length(gci_r);
2270 xcb_randr_output_t *outputs =
2271 xcb_randr_get_crtc_info_outputs(gci_r);
2272
2273 if (num_outputs == 1 && outputs[0] == output)
2274 active_crtc = rc[c];
2275
2276 } else if (idle_crtc == 0) {
2277 int num_possible = xcb_randr_get_crtc_info_possible_length(gci_r);
2278 xcb_randr_output_t *possible =
2279 xcb_randr_get_crtc_info_possible(gci_r);
2280
2281 for (int p = 0; p < num_possible; p++)
2282 if (possible[p] == output) {
2283 idle_crtc = rc[c];
2284 break;
2285 }
2286 }
2287 free(gci_r);
2288 }
2289 }
2290 free(gsr_r);
2291
2292 if (active_crtc)
2293 return active_crtc;
2294 return idle_crtc;
2295 }
2296
2297 VkResult
2298 wsi_acquire_xlib_display(VkPhysicalDevice physical_device,
2299 struct wsi_device *wsi_device,
2300 Display *dpy,
2301 VkDisplayKHR display)
2302 {
2303 struct wsi_display *wsi =
2304 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2305 xcb_connection_t *connection = XGetXCBConnection(dpy);
2306 struct wsi_display_connector *connector =
2307 wsi_display_connector_from_handle(display);
2308 xcb_window_t root;
2309
2310 /* XXX no support for multiple leases yet */
2311 if (wsi->fd >= 0)
2312 return VK_ERROR_INITIALIZATION_FAILED;
2313
2314 if (!connector->output) {
2315 connector->output = wsi_display_connector_id_to_output(connection,
2316 connector->id);
2317
2318 /* Check and see if we found the output */
2319 if (!connector->output)
2320 return VK_ERROR_INITIALIZATION_FAILED;
2321 }
2322
2323 root = wsi_display_output_to_root(connection, connector->output);
2324 if (!root)
2325 return VK_ERROR_INITIALIZATION_FAILED;
2326
2327 xcb_randr_crtc_t crtc = wsi_display_find_crtc_for_output(connection,
2328 root,
2329 connector->output);
2330
2331 if (!crtc)
2332 return VK_ERROR_INITIALIZATION_FAILED;
2333
2334 #ifdef HAVE_DRI3_MODIFIERS
2335 xcb_randr_lease_t lease = xcb_generate_id(connection);
2336 xcb_randr_create_lease_cookie_t cl_c =
2337 xcb_randr_create_lease(connection, root, lease, 1, 1,
2338 &crtc, &connector->output);
2339 xcb_randr_create_lease_reply_t *cl_r =
2340 xcb_randr_create_lease_reply(connection, cl_c, NULL);
2341 if (!cl_r)
2342 return VK_ERROR_INITIALIZATION_FAILED;
2343
2344 int fd = -1;
2345 if (cl_r->nfd > 0) {
2346 int *rcl_f = xcb_randr_create_lease_reply_fds(connection, cl_r);
2347
2348 fd = rcl_f[0];
2349 }
2350 free (cl_r);
2351 if (fd < 0)
2352 return VK_ERROR_INITIALIZATION_FAILED;
2353
2354 wsi->fd = fd;
2355 #endif
2356
2357 return VK_SUCCESS;
2358 }
2359
2360 VkResult
2361 wsi_get_randr_output_display(VkPhysicalDevice physical_device,
2362 struct wsi_device *wsi_device,
2363 Display *dpy,
2364 RROutput output,
2365 VkDisplayKHR *display)
2366 {
2367 xcb_connection_t *connection = XGetXCBConnection(dpy);
2368 struct wsi_display_connector *connector =
2369 wsi_display_get_output(wsi_device, connection, (xcb_randr_output_t) output);
2370
2371 if (connector)
2372 *display = wsi_display_connector_to_handle(connector);
2373 else
2374 *display = VK_NULL_HANDLE;
2375 return VK_SUCCESS;
2376 }
2377
2378 #endif
2379
2380 /* VK_EXT_display_control */
2381 VkResult
2382 wsi_display_power_control(VkDevice device,
2383 struct wsi_device *wsi_device,
2384 VkDisplayKHR display,
2385 const VkDisplayPowerInfoEXT *display_power_info)
2386 {
2387 struct wsi_display *wsi =
2388 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2389 struct wsi_display_connector *connector =
2390 wsi_display_connector_from_handle(display);
2391 int mode;
2392
2393 if (wsi->fd < 0)
2394 return VK_ERROR_INITIALIZATION_FAILED;
2395
2396 switch (display_power_info->powerState) {
2397 case VK_DISPLAY_POWER_STATE_OFF_EXT:
2398 mode = DRM_MODE_DPMS_OFF;
2399 break;
2400 case VK_DISPLAY_POWER_STATE_SUSPEND_EXT:
2401 mode = DRM_MODE_DPMS_SUSPEND;
2402 break;
2403 default:
2404 mode = DRM_MODE_DPMS_ON;
2405 break;
2406 }
2407 drmModeConnectorSetProperty(wsi->fd,
2408 connector->id,
2409 connector->dpms_property,
2410 mode);
2411 return VK_SUCCESS;
2412 }
2413
2414 VkResult
2415 wsi_register_device_event(VkDevice device,
2416 struct wsi_device *wsi_device,
2417 const VkDeviceEventInfoEXT *device_event_info,
2418 const VkAllocationCallbacks *allocator,
2419 struct wsi_fence **fence_p)
2420 {
2421 return VK_ERROR_FEATURE_NOT_PRESENT;
2422 }
2423
2424 VkResult
2425 wsi_register_display_event(VkDevice device,
2426 struct wsi_device *wsi_device,
2427 VkDisplayKHR display,
2428 const VkDisplayEventInfoEXT *display_event_info,
2429 const VkAllocationCallbacks *allocator,
2430 struct wsi_fence **fence_p)
2431 {
2432 struct wsi_display *wsi =
2433 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2434 struct wsi_display_fence *fence;
2435 VkResult ret;
2436
2437 switch (display_event_info->displayEvent) {
2438 case VK_DISPLAY_EVENT_TYPE_FIRST_PIXEL_OUT_EXT:
2439
2440 fence = wsi_display_fence_alloc(device, wsi_device, display, allocator);
2441
2442 if (!fence)
2443 return VK_ERROR_OUT_OF_HOST_MEMORY;
2444
2445 ret = wsi_register_vblank_event(fence, wsi_device, display,
2446 DRM_CRTC_SEQUENCE_RELATIVE, 1, NULL);
2447
2448 if (ret == VK_SUCCESS)
2449 *fence_p = &fence->base;
2450 else if (fence != NULL)
2451 vk_free2(wsi->alloc, allocator, fence);
2452
2453 break;
2454 default:
2455 ret = VK_ERROR_FEATURE_NOT_PRESENT;
2456 break;
2457 }
2458
2459 return ret;
2460 }
2461
2462
2463 VkResult
2464 wsi_get_swapchain_counter(VkDevice device,
2465 struct wsi_device *wsi_device,
2466 VkSwapchainKHR _swapchain,
2467 VkSurfaceCounterFlagBitsEXT flag_bits,
2468 uint64_t *value)
2469 {
2470 struct wsi_display *wsi =
2471 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2472 struct wsi_display_swapchain *swapchain =
2473 (struct wsi_display_swapchain *) wsi_swapchain_from_handle(_swapchain);
2474 struct wsi_display_connector *connector =
2475 wsi_display_mode_from_handle(swapchain->surface->displayMode)->connector;
2476
2477 if (wsi->fd < 0)
2478 return VK_ERROR_INITIALIZATION_FAILED;
2479
2480 if (!connector->active) {
2481 *value = 0;
2482 return VK_SUCCESS;
2483 }
2484
2485 int ret = drmCrtcGetSequence(wsi->fd, connector->crtc_id, value, NULL);
2486 if (ret)
2487 *value = 0;
2488
2489 return VK_SUCCESS;
2490 }
2491