projects / mesa.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
drm-uapi: use local files, not system libdrm
[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-uapi/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 struct wsi_device *wsi_device,
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 caps->minImageExtent = (VkExtent2D) { 1, 1 };
824 caps->maxImageExtent = (VkExtent2D) {
825 wsi_device->maxImageDimension2D,
826 wsi_device->maxImageDimension2D,
827 };
828
829 caps->supportedCompositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
830
831 caps->minImageCount = 2;
832 caps->maxImageCount = 0;
833
834 caps->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
835 caps->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
836 caps->maxImageArrayLayers = 1;
837 caps->supportedUsageFlags =
838 VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
839 VK_IMAGE_USAGE_SAMPLED_BIT |
840 VK_IMAGE_USAGE_TRANSFER_DST_BIT |
841 VK_IMAGE_USAGE_STORAGE_BIT |
842 VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
843
844 return VK_SUCCESS;
845 }
846
847 static VkResult
848 wsi_display_surface_get_surface_counters(
849 VkIcdSurfaceBase *surface_base,
850 VkSurfaceCounterFlagsEXT *counters)
851 {
852 *counters = VK_SURFACE_COUNTER_VBLANK_EXT;
853 return VK_SUCCESS;
854 }
855
856 static VkResult
857 wsi_display_surface_get_capabilities2(VkIcdSurfaceBase *icd_surface,
858 struct wsi_device *wsi_device,
859 const void *info_next,
860 VkSurfaceCapabilities2KHR *caps)
861 {
862 assert(caps->sType == VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES_2_KHR);
863 VkResult result;
864
865 result = wsi_display_surface_get_capabilities(icd_surface, wsi_device,
866 &caps->surfaceCapabilities);
867 if (result != VK_SUCCESS)
868 return result;
869
870 struct wsi_surface_supported_counters *counters =
871 vk_find_struct( caps->pNext, WSI_SURFACE_SUPPORTED_COUNTERS_MESA);
872
873 if (counters) {
874 result = wsi_display_surface_get_surface_counters(
875 icd_surface,
876 &counters->supported_surface_counters);
877 }
878
879 return result;
880 }
881
882 static const struct {
883 VkFormat format;
884 uint32_t drm_format;
885 } available_surface_formats[] = {
886 { .format = VK_FORMAT_B8G8R8A8_SRGB, .drm_format = DRM_FORMAT_XRGB8888 },
887 { .format = VK_FORMAT_B8G8R8A8_UNORM, .drm_format = DRM_FORMAT_XRGB8888 },
888 };
889
890 static VkResult
891 wsi_display_surface_get_formats(VkIcdSurfaceBase *icd_surface,
892 struct wsi_device *wsi_device,
893 uint32_t *surface_format_count,
894 VkSurfaceFormatKHR *surface_formats)
895 {
896 VK_OUTARRAY_MAKE(out, surface_formats, surface_format_count);
897
898 for (unsigned i = 0; i < ARRAY_SIZE(available_surface_formats); i++) {
899 vk_outarray_append(&out, f) {
900 f->format = available_surface_formats[i].format;
901 f->colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
902 }
903 }
904
905 return vk_outarray_status(&out);
906 }
907
908 static VkResult
909 wsi_display_surface_get_formats2(VkIcdSurfaceBase *surface,
910 struct wsi_device *wsi_device,
911 const void *info_next,
912 uint32_t *surface_format_count,
913 VkSurfaceFormat2KHR *surface_formats)
914 {
915 VK_OUTARRAY_MAKE(out, surface_formats, surface_format_count);
916
917 for (unsigned i = 0; i < ARRAY_SIZE(available_surface_formats); i++) {
918 vk_outarray_append(&out, f) {
919 assert(f->sType == VK_STRUCTURE_TYPE_SURFACE_FORMAT_2_KHR);
920 f->surfaceFormat.format = available_surface_formats[i].format;
921 f->surfaceFormat.colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
922 }
923 }
924
925 return vk_outarray_status(&out);
926 }
927
928 static VkResult
929 wsi_display_surface_get_present_modes(VkIcdSurfaceBase *surface,
930 uint32_t *present_mode_count,
931 VkPresentModeKHR *present_modes)
932 {
933 VK_OUTARRAY_MAKE(conn, present_modes, present_mode_count);
934
935 vk_outarray_append(&conn, present) {
936 *present = VK_PRESENT_MODE_FIFO_KHR;
937 }
938
939 return vk_outarray_status(&conn);
940 }
941
942 static VkResult
943 wsi_display_surface_get_present_rectangles(VkIcdSurfaceBase *surface_base,
944 struct wsi_device *wsi_device,
945 uint32_t* pRectCount,
946 VkRect2D* pRects)
947 {
948 VkIcdSurfaceDisplay *surface = (VkIcdSurfaceDisplay *) surface_base;
949 wsi_display_mode *mode = wsi_display_mode_from_handle(surface->displayMode);
950 VK_OUTARRAY_MAKE(out, pRects, pRectCount);
951
952 if (wsi_device_matches_drm_fd(wsi_device, mode->connector->wsi->fd)) {
953 vk_outarray_append(&out, rect) {
954 *rect = (VkRect2D) {
955 .offset = { 0, 0 },
956 .extent = { mode->hdisplay, mode->vdisplay },
957 };
958 }
959 }
960
961 return vk_outarray_status(&out);
962 }
963
964 static void
965 wsi_display_destroy_buffer(struct wsi_display *wsi,
966 uint32_t buffer)
967 {
968 (void) drmIoctl(wsi->fd, DRM_IOCTL_MODE_DESTROY_DUMB,
969 &((struct drm_mode_destroy_dumb) { .handle = buffer }));
970 }
971
972 static VkResult
973 wsi_display_image_init(VkDevice device_h,
974 struct wsi_swapchain *drv_chain,
975 const VkSwapchainCreateInfoKHR *create_info,
976 const VkAllocationCallbacks *allocator,
977 struct wsi_display_image *image)
978 {
979 struct wsi_display_swapchain *chain =
980 (struct wsi_display_swapchain *) drv_chain;
981 struct wsi_display *wsi = chain->wsi;
982 uint32_t drm_format = 0;
983
984 for (unsigned i = 0; i < ARRAY_SIZE(available_surface_formats); i++) {
985 if (create_info->imageFormat == available_surface_formats[i].format) {
986 drm_format = available_surface_formats[i].drm_format;
987 break;
988 }
989 }
990
991 /* the application provided an invalid format, bail */
992 if (drm_format == 0)
993 return VK_ERROR_DEVICE_LOST;
994
995 VkResult result = wsi_create_native_image(&chain->base, create_info,
996 0, NULL, NULL,
997 &image->base);
998 if (result != VK_SUCCESS)
999 return result;
1000
1001 memset(image->buffer, 0, sizeof (image->buffer));
1002
1003 for (unsigned int i = 0; i < image->base.num_planes; i++) {
1004 int ret = drmPrimeFDToHandle(wsi->fd, image->base.fds[i],
1005 &image->buffer[i]);
1006
1007 close(image->base.fds[i]);
1008 image->base.fds[i] = -1;
1009 if (ret < 0)
1010 goto fail_handle;
1011 }
1012
1013 image->chain = chain;
1014 image->state = WSI_IMAGE_IDLE;
1015 image->fb_id = 0;
1016
1017 int ret = drmModeAddFB2(wsi->fd,
1018 create_info->imageExtent.width,
1019 create_info->imageExtent.height,
1020 drm_format,
1021 image->buffer,
1022 image->base.row_pitches,
1023 image->base.offsets,
1024 &image->fb_id, 0);
1025
1026 if (ret)
1027 goto fail_fb;
1028
1029 return VK_SUCCESS;
1030
1031 fail_fb:
1032 fail_handle:
1033 for (unsigned int i = 0; i < image->base.num_planes; i++) {
1034 if (image->buffer[i])
1035 wsi_display_destroy_buffer(wsi, image->buffer[i]);
1036 if (image->base.fds[i] != -1) {
1037 close(image->base.fds[i]);
1038 image->base.fds[i] = -1;
1039 }
1040 }
1041
1042 wsi_destroy_image(&chain->base, &image->base);
1043
1044 return VK_ERROR_OUT_OF_HOST_MEMORY;
1045 }
1046
1047 static void
1048 wsi_display_image_finish(struct wsi_swapchain *drv_chain,
1049 const VkAllocationCallbacks *allocator,
1050 struct wsi_display_image *image)
1051 {
1052 struct wsi_display_swapchain *chain =
1053 (struct wsi_display_swapchain *) drv_chain;
1054 struct wsi_display *wsi = chain->wsi;
1055
1056 drmModeRmFB(wsi->fd, image->fb_id);
1057 for (unsigned int i = 0; i < image->base.num_planes; i++)
1058 wsi_display_destroy_buffer(wsi, image->buffer[i]);
1059 wsi_destroy_image(&chain->base, &image->base);
1060 }
1061
1062 static VkResult
1063 wsi_display_swapchain_destroy(struct wsi_swapchain *drv_chain,
1064 const VkAllocationCallbacks *allocator)
1065 {
1066 struct wsi_display_swapchain *chain =
1067 (struct wsi_display_swapchain *) drv_chain;
1068
1069 for (uint32_t i = 0; i < chain->base.image_count; i++)
1070 wsi_display_image_finish(drv_chain, allocator, &chain->images[i]);
1071
1072 wsi_swapchain_finish(&chain->base);
1073 vk_free(allocator, chain);
1074 return VK_SUCCESS;
1075 }
1076
1077 static struct wsi_image *
1078 wsi_display_get_wsi_image(struct wsi_swapchain *drv_chain,
1079 uint32_t image_index)
1080 {
1081 struct wsi_display_swapchain *chain =
1082 (struct wsi_display_swapchain *) drv_chain;
1083
1084 return &chain->images[image_index].base;
1085 }
1086
1087 static void
1088 wsi_display_idle_old_displaying(struct wsi_display_image *active_image)
1089 {
1090 struct wsi_display_swapchain *chain = active_image->chain;
1091
1092 wsi_display_debug("idle everyone but %ld\n",
1093 active_image - &(chain->images[0]));
1094 for (uint32_t i = 0; i < chain->base.image_count; i++)
1095 if (chain->images[i].state == WSI_IMAGE_DISPLAYING &&
1096 &chain->images[i] != active_image)
1097 {
1098 wsi_display_debug("idle %d\n", i);
1099 chain->images[i].state = WSI_IMAGE_IDLE;
1100 }
1101 }
1102
1103 static VkResult
1104 _wsi_display_queue_next(struct wsi_swapchain *drv_chain);
1105
1106 static void
1107 wsi_display_page_flip_handler2(int fd,
1108 unsigned int frame,
1109 unsigned int sec,
1110 unsigned int usec,
1111 uint32_t crtc_id,
1112 void *data)
1113 {
1114 struct wsi_display_image *image = data;
1115 struct wsi_display_swapchain *chain = image->chain;
1116
1117 wsi_display_debug("image %ld displayed at %d\n",
1118 image - &(image->chain->images[0]), frame);
1119 image->state = WSI_IMAGE_DISPLAYING;
1120 wsi_display_idle_old_displaying(image);
1121 VkResult result = _wsi_display_queue_next(&(chain->base));
1122 if (result != VK_SUCCESS)
1123 chain->status = result;
1124 }
1125
1126 static void wsi_display_fence_event_handler(struct wsi_display_fence *fence);
1127
1128 static void wsi_display_page_flip_handler(int fd,
1129 unsigned int frame,
1130 unsigned int sec,
1131 unsigned int usec,
1132 void *data)
1133 {
1134 wsi_display_page_flip_handler2(fd, frame, sec, usec, 0, data);
1135 }
1136
1137 static void wsi_display_vblank_handler(int fd, unsigned int frame,
1138 unsigned int sec, unsigned int usec,
1139 void *data)
1140 {
1141 struct wsi_display_fence *fence = data;
1142
1143 wsi_display_fence_event_handler(fence);
1144 }
1145
1146 static void wsi_display_sequence_handler(int fd, uint64_t frame,
1147 uint64_t nsec, uint64_t user_data)
1148 {
1149 struct wsi_display_fence *fence =
1150 (struct wsi_display_fence *) (uintptr_t) user_data;
1151
1152 wsi_display_fence_event_handler(fence);
1153 }
1154
1155 static drmEventContext event_context = {
1156 .version = DRM_EVENT_CONTEXT_VERSION,
1157 .page_flip_handler = wsi_display_page_flip_handler,
1158 #if DRM_EVENT_CONTEXT_VERSION >= 3
1159 .page_flip_handler2 = wsi_display_page_flip_handler2,
1160 #endif
1161 .vblank_handler = wsi_display_vblank_handler,
1162 .sequence_handler = wsi_display_sequence_handler,
1163 };
1164
1165 static void *
1166 wsi_display_wait_thread(void *data)
1167 {
1168 struct wsi_display *wsi = data;
1169 struct pollfd pollfd = {
1170 .fd = wsi->fd,
1171 .events = POLLIN
1172 };
1173
1174 pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
1175 for (;;) {
1176 int ret = poll(&pollfd, 1, -1);
1177 if (ret > 0) {
1178 pthread_mutex_lock(&wsi->wait_mutex);
1179 (void) drmHandleEvent(wsi->fd, &event_context);
1180 pthread_mutex_unlock(&wsi->wait_mutex);
1181 pthread_cond_broadcast(&wsi->wait_cond);
1182 }
1183 }
1184 return NULL;
1185 }
1186
1187 static int
1188 wsi_display_start_wait_thread(struct wsi_display *wsi)
1189 {
1190 if (!wsi->wait_thread) {
1191 int ret = pthread_create(&wsi->wait_thread, NULL,
1192 wsi_display_wait_thread, wsi);
1193 if (ret)
1194 return ret;
1195 }
1196 return 0;
1197 }
1198
1199 /*
1200 * Wait for at least one event from the kernel to be processed.
1201 * Call with wait_mutex held
1202 */
1203 static int
1204 wsi_display_wait_for_event(struct wsi_display *wsi,
1205 uint64_t timeout_ns)
1206 {
1207 int ret;
1208
1209 ret = wsi_display_start_wait_thread(wsi);
1210
1211 if (ret)
1212 return ret;
1213
1214 struct timespec abs_timeout = {
1215 .tv_sec = timeout_ns / 1000000000ULL,
1216 .tv_nsec = timeout_ns % 1000000000ULL,
1217 };
1218
1219 ret = pthread_cond_timedwait(&wsi->wait_cond, &wsi->wait_mutex,
1220 &abs_timeout);
1221
1222 wsi_display_debug("%9ld done waiting for event %d\n", pthread_self(), ret);
1223 return ret;
1224 }
1225
1226 static VkResult
1227 wsi_display_acquire_next_image(struct wsi_swapchain *drv_chain,
1228 const VkAcquireNextImageInfoKHR *info,
1229 uint32_t *image_index)
1230 {
1231 struct wsi_display_swapchain *chain =
1232 (struct wsi_display_swapchain *)drv_chain;
1233 struct wsi_display *wsi = chain->wsi;
1234 int ret = 0;
1235 VkResult result = VK_SUCCESS;
1236
1237 /* Bail early if the swapchain is broken */
1238 if (chain->status != VK_SUCCESS)
1239 return chain->status;
1240
1241 uint64_t timeout = info->timeout;
1242 if (timeout != 0 && timeout != UINT64_MAX)
1243 timeout = wsi_rel_to_abs_time(timeout);
1244
1245 pthread_mutex_lock(&wsi->wait_mutex);
1246 for (;;) {
1247 for (uint32_t i = 0; i < chain->base.image_count; i++) {
1248 if (chain->images[i].state == WSI_IMAGE_IDLE) {
1249 *image_index = i;
1250 wsi_display_debug("image %d available\n", i);
1251 chain->images[i].state = WSI_IMAGE_DRAWING;
1252 result = VK_SUCCESS;
1253 goto done;
1254 }
1255 wsi_display_debug("image %d state %d\n", i, chain->images[i].state);
1256 }
1257
1258 if (ret == ETIMEDOUT) {
1259 result = VK_TIMEOUT;
1260 goto done;
1261 }
1262
1263 ret = wsi_display_wait_for_event(wsi, timeout);
1264
1265 if (ret && ret != ETIMEDOUT) {
1266 result = VK_ERROR_SURFACE_LOST_KHR;
1267 goto done;
1268 }
1269 }
1270 done:
1271 pthread_mutex_unlock(&wsi->wait_mutex);
1272
1273 if (result != VK_SUCCESS)
1274 return result;
1275
1276 return chain->status;
1277 }
1278
1279 /*
1280 * Check whether there are any other connectors driven by this crtc
1281 */
1282 static bool
1283 wsi_display_crtc_solo(struct wsi_display *wsi,
1284 drmModeResPtr mode_res,
1285 drmModeConnectorPtr connector,
1286 uint32_t crtc_id)
1287 {
1288 /* See if any other connectors share the same encoder */
1289 for (int c = 0; c < mode_res->count_connectors; c++) {
1290 if (mode_res->connectors[c] == connector->connector_id)
1291 continue;
1292
1293 drmModeConnectorPtr other_connector =
1294 drmModeGetConnector(wsi->fd, mode_res->connectors[c]);
1295
1296 if (other_connector) {
1297 bool match = (other_connector->encoder_id == connector->encoder_id);
1298 drmModeFreeConnector(other_connector);
1299 if (match)
1300 return false;
1301 }
1302 }
1303
1304 /* See if any other encoders share the same crtc */
1305 for (int e = 0; e < mode_res->count_encoders; e++) {
1306 if (mode_res->encoders[e] == connector->encoder_id)
1307 continue;
1308
1309 drmModeEncoderPtr other_encoder =
1310 drmModeGetEncoder(wsi->fd, mode_res->encoders[e]);
1311
1312 if (other_encoder) {
1313 bool match = (other_encoder->crtc_id == crtc_id);
1314 drmModeFreeEncoder(other_encoder);
1315 if (match)
1316 return false;
1317 }
1318 }
1319 return true;
1320 }
1321
1322 /*
1323 * Pick a suitable CRTC to drive this connector. Prefer a CRTC which is
1324 * currently driving this connector and not any others. Settle for a CRTC
1325 * which is currently idle.
1326 */
1327 static uint32_t
1328 wsi_display_select_crtc(const struct wsi_display_connector *connector,
1329 drmModeResPtr mode_res,
1330 drmModeConnectorPtr drm_connector)
1331 {
1332 struct wsi_display *wsi = connector->wsi;
1333
1334 /* See what CRTC is currently driving this connector */
1335 if (drm_connector->encoder_id) {
1336 drmModeEncoderPtr encoder =
1337 drmModeGetEncoder(wsi->fd, drm_connector->encoder_id);
1338
1339 if (encoder) {
1340 uint32_t crtc_id = encoder->crtc_id;
1341 drmModeFreeEncoder(encoder);
1342 if (crtc_id) {
1343 if (wsi_display_crtc_solo(wsi, mode_res, drm_connector, crtc_id))
1344 return crtc_id;
1345 }
1346 }
1347 }
1348 uint32_t crtc_id = 0;
1349 for (int c = 0; crtc_id == 0 && c < mode_res->count_crtcs; c++) {
1350 drmModeCrtcPtr crtc = drmModeGetCrtc(wsi->fd, mode_res->crtcs[c]);
1351 if (crtc && crtc->buffer_id == 0)
1352 crtc_id = crtc->crtc_id;
1353 drmModeFreeCrtc(crtc);
1354 }
1355 return crtc_id;
1356 }
1357
1358 static VkResult
1359 wsi_display_setup_connector(wsi_display_connector *connector,
1360 wsi_display_mode *display_mode)
1361 {
1362 struct wsi_display *wsi = connector->wsi;
1363
1364 if (connector->current_mode == display_mode && connector->crtc_id)
1365 return VK_SUCCESS;
1366
1367 VkResult result = VK_SUCCESS;
1368
1369 drmModeResPtr mode_res = drmModeGetResources(wsi->fd);
1370 if (!mode_res) {
1371 if (errno == ENOMEM)
1372 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1373 else
1374 result = VK_ERROR_SURFACE_LOST_KHR;
1375 goto bail;
1376 }
1377
1378 drmModeConnectorPtr drm_connector =
1379 drmModeGetConnectorCurrent(wsi->fd, connector->id);
1380
1381 if (!drm_connector) {
1382 if (errno == ENOMEM)
1383 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1384 else
1385 result = VK_ERROR_SURFACE_LOST_KHR;
1386 goto bail_mode_res;
1387 }
1388
1389 /* Pick a CRTC if we don't have one */
1390 if (!connector->crtc_id) {
1391 connector->crtc_id = wsi_display_select_crtc(connector,
1392 mode_res, drm_connector);
1393 if (!connector->crtc_id) {
1394 result = VK_ERROR_SURFACE_LOST_KHR;
1395 goto bail_connector;
1396 }
1397 }
1398
1399 if (connector->current_mode != display_mode) {
1400
1401 /* Find the drm mode corresponding to the requested VkDisplayMode */
1402 drmModeModeInfoPtr drm_mode = NULL;
1403
1404 for (int m = 0; m < drm_connector->count_modes; m++) {
1405 drm_mode = &drm_connector->modes[m];
1406 if (wsi_display_mode_matches_drm(display_mode, drm_mode))
1407 break;
1408 drm_mode = NULL;
1409 }
1410
1411 if (!drm_mode) {
1412 result = VK_ERROR_SURFACE_LOST_KHR;
1413 goto bail_connector;
1414 }
1415
1416 connector->current_mode = display_mode;
1417 connector->current_drm_mode = *drm_mode;
1418 }
1419
1420 bail_connector:
1421 drmModeFreeConnector(drm_connector);
1422 bail_mode_res:
1423 drmModeFreeResources(mode_res);
1424 bail:
1425 return result;
1426
1427 }
1428
1429 static VkResult
1430 wsi_display_fence_wait(struct wsi_fence *fence_wsi, uint64_t timeout)
1431 {
1432 const struct wsi_device *wsi_device = fence_wsi->wsi_device;
1433 struct wsi_display *wsi =
1434 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1435 struct wsi_display_fence *fence = (struct wsi_display_fence *) fence_wsi;
1436
1437 wsi_display_debug("%9lu wait fence %lu %ld\n",
1438 pthread_self(), fence->sequence,
1439 (int64_t) (timeout - wsi_get_current_monotonic()));
1440 wsi_display_debug_code(uint64_t start_ns = wsi_get_current_monotonic());
1441 pthread_mutex_lock(&wsi->wait_mutex);
1442
1443 VkResult result;
1444 int ret = 0;
1445 for (;;) {
1446 if (fence->event_received) {
1447 wsi_display_debug("%9lu fence %lu passed\n",
1448 pthread_self(), fence->sequence);
1449 result = VK_SUCCESS;
1450 break;
1451 }
1452
1453 if (ret == ETIMEDOUT) {
1454 wsi_display_debug("%9lu fence %lu timeout\n",
1455 pthread_self(), fence->sequence);
1456 result = VK_TIMEOUT;
1457 break;
1458 }
1459
1460 ret = wsi_display_wait_for_event(wsi, timeout);
1461
1462 if (ret && ret != ETIMEDOUT) {
1463 wsi_display_debug("%9lu fence %lu error\n",
1464 pthread_self(), fence->sequence);
1465 result = VK_ERROR_DEVICE_LOST;
1466 break;
1467 }
1468 }
1469 pthread_mutex_unlock(&wsi->wait_mutex);
1470 wsi_display_debug("%9lu fence wait %f ms\n",
1471 pthread_self(),
1472 ((int64_t) (wsi_get_current_monotonic() - start_ns)) /
1473 1.0e6);
1474 return result;
1475 }
1476
1477 static void
1478 wsi_display_fence_check_free(struct wsi_display_fence *fence)
1479 {
1480 if (fence->event_received && fence->destroyed)
1481 vk_free(fence->base.alloc, fence);
1482 }
1483
1484 static void wsi_display_fence_event_handler(struct wsi_display_fence *fence)
1485 {
1486 fence->event_received = true;
1487 wsi_display_fence_check_free(fence);
1488 }
1489
1490 static void
1491 wsi_display_fence_destroy(struct wsi_fence *fence_wsi)
1492 {
1493 struct wsi_display_fence *fence = (struct wsi_display_fence *) fence_wsi;
1494
1495 assert(!fence->destroyed);
1496 fence->destroyed = true;
1497 wsi_display_fence_check_free(fence);
1498 }
1499
1500 static struct wsi_display_fence *
1501 wsi_display_fence_alloc(VkDevice device,
1502 const struct wsi_device *wsi_device,
1503 VkDisplayKHR display,
1504 const VkAllocationCallbacks *allocator)
1505 {
1506 struct wsi_display *wsi =
1507 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1508 struct wsi_display_fence *fence =
1509 vk_zalloc2(wsi->alloc, allocator, sizeof (*fence),
1510 8, VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
1511
1512 if (!fence)
1513 return NULL;
1514
1515 fence->base.device = device;
1516 fence->base.display = display;
1517 fence->base.wsi_device = wsi_device;
1518 fence->base.alloc = allocator ? allocator : wsi->alloc;
1519 fence->base.wait = wsi_display_fence_wait;
1520 fence->base.destroy = wsi_display_fence_destroy;
1521 fence->event_received = false;
1522 fence->destroyed = false;
1523 fence->sequence = ++fence_sequence;
1524 return fence;
1525 }
1526
1527 static VkResult
1528 wsi_register_vblank_event(struct wsi_display_fence *fence,
1529 const struct wsi_device *wsi_device,
1530 VkDisplayKHR display,
1531 uint32_t flags,
1532 uint64_t frame_requested,
1533 uint64_t *frame_queued)
1534 {
1535 struct wsi_display *wsi =
1536 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1537 struct wsi_display_connector *connector =
1538 wsi_display_connector_from_handle(display);
1539
1540 if (wsi->fd < 0)
1541 return VK_ERROR_INITIALIZATION_FAILED;
1542
1543 for (;;) {
1544 int ret = drmCrtcQueueSequence(wsi->fd, connector->crtc_id,
1545 flags,
1546 frame_requested,
1547 frame_queued,
1548 (uintptr_t) fence);
1549
1550 if (!ret)
1551 return VK_SUCCESS;
1552
1553 if (errno != ENOMEM) {
1554
1555 /* Something unexpected happened. Pause for a moment so the
1556 * application doesn't just spin and then return a failure indication
1557 */
1558
1559 wsi_display_debug("queue vblank event %lu failed\n", fence->sequence);
1560 struct timespec delay = {
1561 .tv_sec = 0,
1562 .tv_nsec = 100000000ull,
1563 };
1564 nanosleep(&delay, NULL);
1565 return VK_ERROR_OUT_OF_HOST_MEMORY;
1566 }
1567
1568 /* The kernel event queue is full. Wait for some events to be
1569 * processed and try again
1570 */
1571
1572 pthread_mutex_lock(&wsi->wait_mutex);
1573 ret = wsi_display_wait_for_event(wsi, wsi_rel_to_abs_time(100000000ull));
1574 pthread_mutex_unlock(&wsi->wait_mutex);
1575
1576 if (ret) {
1577 wsi_display_debug("vblank queue full, event wait failed\n");
1578 return VK_ERROR_OUT_OF_HOST_MEMORY;
1579 }
1580 }
1581 }
1582
1583 /*
1584 * Check to see if the kernel has no flip queued and if there's an image
1585 * waiting to be displayed.
1586 */
1587 static VkResult
1588 _wsi_display_queue_next(struct wsi_swapchain *drv_chain)
1589 {
1590 struct wsi_display_swapchain *chain =
1591 (struct wsi_display_swapchain *) drv_chain;
1592 struct wsi_display *wsi = chain->wsi;
1593 VkIcdSurfaceDisplay *surface = chain->surface;
1594 wsi_display_mode *display_mode =
1595 wsi_display_mode_from_handle(surface->displayMode);
1596 wsi_display_connector *connector = display_mode->connector;
1597
1598 if (wsi->fd < 0)
1599 return VK_ERROR_SURFACE_LOST_KHR;
1600
1601 if (display_mode != connector->current_mode)
1602 connector->active = false;
1603
1604 for (;;) {
1605
1606 /* Check to see if there is an image to display, or if some image is
1607 * already queued */
1608
1609 struct wsi_display_image *image = NULL;
1610
1611 for (uint32_t i = 0; i < chain->base.image_count; i++) {
1612 struct wsi_display_image *tmp_image = &chain->images[i];
1613
1614 switch (tmp_image->state) {
1615 case WSI_IMAGE_FLIPPING:
1616 /* already flipping, don't send another to the kernel yet */
1617 return VK_SUCCESS;
1618 case WSI_IMAGE_QUEUED:
1619 /* find the oldest queued */
1620 if (!image || tmp_image->flip_sequence < image->flip_sequence)
1621 image = tmp_image;
1622 break;
1623 default:
1624 break;
1625 }
1626 }
1627
1628 if (!image)
1629 return VK_SUCCESS;
1630
1631 int ret;
1632 if (connector->active) {
1633 ret = drmModePageFlip(wsi->fd, connector->crtc_id, image->fb_id,
1634 DRM_MODE_PAGE_FLIP_EVENT, image);
1635 if (ret == 0) {
1636 image->state = WSI_IMAGE_FLIPPING;
1637 return VK_SUCCESS;
1638 }
1639 wsi_display_debug("page flip err %d %s\n", ret, strerror(-ret));
1640 } else {
1641 ret = -EINVAL;
1642 }
1643
1644 if (ret == -EINVAL) {
1645 VkResult result = wsi_display_setup_connector(connector, display_mode);
1646
1647 if (result != VK_SUCCESS) {
1648 image->state = WSI_IMAGE_IDLE;
1649 return result;
1650 }
1651
1652 /* XXX allow setting of position */
1653 ret = drmModeSetCrtc(wsi->fd, connector->crtc_id,
1654 image->fb_id, 0, 0,
1655 &connector->id, 1,
1656 &connector->current_drm_mode);
1657 if (ret == 0) {
1658 /* Assume that the mode set is synchronous and that any
1659 * previous image is now idle.
1660 */
1661 image->state = WSI_IMAGE_DISPLAYING;
1662 wsi_display_idle_old_displaying(image);
1663 connector->active = true;
1664 return VK_SUCCESS;
1665 }
1666 }
1667
1668 if (ret != -EACCES) {
1669 connector->active = false;
1670 image->state = WSI_IMAGE_IDLE;
1671 return VK_ERROR_SURFACE_LOST_KHR;
1672 }
1673
1674 /* Some other VT is currently active. Sit here waiting for
1675 * our VT to become active again by polling once a second
1676 */
1677 usleep(1000 * 1000);
1678 connector->active = false;
1679 }
1680 }
1681
1682 static VkResult
1683 wsi_display_queue_present(struct wsi_swapchain *drv_chain,
1684 uint32_t image_index,
1685 const VkPresentRegionKHR *damage)
1686 {
1687 struct wsi_display_swapchain *chain =
1688 (struct wsi_display_swapchain *) drv_chain;
1689 struct wsi_display *wsi = chain->wsi;
1690 struct wsi_display_image *image = &chain->images[image_index];
1691 VkResult result;
1692
1693 /* Bail early if the swapchain is broken */
1694 if (chain->status != VK_SUCCESS)
1695 return chain->status;
1696
1697 assert(image->state == WSI_IMAGE_DRAWING);
1698 wsi_display_debug("present %d\n", image_index);
1699
1700 pthread_mutex_lock(&wsi->wait_mutex);
1701
1702 image->flip_sequence = ++chain->flip_sequence;
1703 image->state = WSI_IMAGE_QUEUED;
1704
1705 result = _wsi_display_queue_next(drv_chain);
1706 if (result != VK_SUCCESS)
1707 chain->status = result;
1708
1709 pthread_mutex_unlock(&wsi->wait_mutex);
1710
1711 if (result != VK_SUCCESS)
1712 return result;
1713
1714 return chain->status;
1715 }
1716
1717 static VkResult
1718 wsi_display_surface_create_swapchain(
1719 VkIcdSurfaceBase *icd_surface,
1720 VkDevice device,
1721 struct wsi_device *wsi_device,
1722 const VkSwapchainCreateInfoKHR *create_info,
1723 const VkAllocationCallbacks *allocator,
1724 struct wsi_swapchain **swapchain_out)
1725 {
1726 struct wsi_display *wsi =
1727 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1728
1729 assert(create_info->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
1730
1731 const unsigned num_images = create_info->minImageCount;
1732 struct wsi_display_swapchain *chain =
1733 vk_zalloc(allocator,
1734 sizeof(*chain) + num_images * sizeof(chain->images[0]),
1735 8, VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
1736
1737 if (chain == NULL)
1738 return VK_ERROR_OUT_OF_HOST_MEMORY;
1739
1740 VkResult result = wsi_swapchain_init(wsi_device, &chain->base, device,
1741 create_info, allocator);
1742 if (result != VK_SUCCESS) {
1743 vk_free(allocator, chain);
1744 return result;
1745 }
1746
1747 chain->base.destroy = wsi_display_swapchain_destroy;
1748 chain->base.get_wsi_image = wsi_display_get_wsi_image;
1749 chain->base.acquire_next_image = wsi_display_acquire_next_image;
1750 chain->base.queue_present = wsi_display_queue_present;
1751 chain->base.present_mode = create_info->presentMode;
1752 chain->base.image_count = num_images;
1753
1754 chain->wsi = wsi;
1755 chain->status = VK_SUCCESS;
1756
1757 chain->surface = (VkIcdSurfaceDisplay *) icd_surface;
1758
1759 for (uint32_t image = 0; image < chain->base.image_count; image++) {
1760 result = wsi_display_image_init(device, &chain->base,
1761 create_info, allocator,
1762 &chain->images[image]);
1763 if (result != VK_SUCCESS) {
1764 while (image > 0) {
1765 --image;
1766 wsi_display_image_finish(&chain->base, allocator,
1767 &chain->images[image]);
1768 }
1769 vk_free(allocator, chain);
1770 goto fail_init_images;
1771 }
1772 }
1773
1774 *swapchain_out = &chain->base;
1775
1776 return VK_SUCCESS;
1777
1778 fail_init_images:
1779 return result;
1780 }
1781
1782 static bool
1783 wsi_init_pthread_cond_monotonic(pthread_cond_t *cond)
1784 {
1785 pthread_condattr_t condattr;
1786 bool ret = false;
1787
1788 if (pthread_condattr_init(&condattr) != 0)
1789 goto fail_attr_init;
1790
1791 if (pthread_condattr_setclock(&condattr, CLOCK_MONOTONIC) != 0)
1792 goto fail_attr_set;
1793
1794 if (pthread_cond_init(cond, &condattr) != 0)
1795 goto fail_cond_init;
1796
1797 ret = true;
1798
1799 fail_cond_init:
1800 fail_attr_set:
1801 pthread_condattr_destroy(&condattr);
1802 fail_attr_init:
1803 return ret;
1804 }
1805
1806 VkResult
1807 wsi_display_init_wsi(struct wsi_device *wsi_device,
1808 const VkAllocationCallbacks *alloc,
1809 int display_fd)
1810 {
1811 struct wsi_display *wsi = vk_zalloc(alloc, sizeof(*wsi), 8,
1812 VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
1813 VkResult result;
1814
1815 if (!wsi) {
1816 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1817 goto fail;
1818 }
1819
1820 wsi->fd = display_fd;
1821 wsi->alloc = alloc;
1822
1823 list_inithead(&wsi->connectors);
1824
1825 int ret = pthread_mutex_init(&wsi->wait_mutex, NULL);
1826 if (ret) {
1827 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1828 goto fail_mutex;
1829 }
1830
1831 if (!wsi_init_pthread_cond_monotonic(&wsi->wait_cond)) {
1832 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1833 goto fail_cond;
1834 }
1835
1836 wsi->base.get_support = wsi_display_surface_get_support;
1837 wsi->base.get_capabilities2 = wsi_display_surface_get_capabilities2;
1838 wsi->base.get_formats = wsi_display_surface_get_formats;
1839 wsi->base.get_formats2 = wsi_display_surface_get_formats2;
1840 wsi->base.get_present_modes = wsi_display_surface_get_present_modes;
1841 wsi->base.get_present_rectangles = wsi_display_surface_get_present_rectangles;
1842 wsi->base.create_swapchain = wsi_display_surface_create_swapchain;
1843
1844 wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY] = &wsi->base;
1845
1846 return VK_SUCCESS;
1847
1848 fail_cond:
1849 pthread_mutex_destroy(&wsi->wait_mutex);
1850 fail_mutex:
1851 vk_free(alloc, wsi);
1852 fail:
1853 return result;
1854 }
1855
1856 void
1857 wsi_display_finish_wsi(struct wsi_device *wsi_device,
1858 const VkAllocationCallbacks *alloc)
1859 {
1860 struct wsi_display *wsi =
1861 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1862
1863 if (wsi) {
1864 wsi_for_each_connector(connector, wsi) {
1865 wsi_for_each_display_mode(mode, connector) {
1866 vk_free(wsi->alloc, mode);
1867 }
1868 vk_free(wsi->alloc, connector);
1869 }
1870
1871 pthread_mutex_lock(&wsi->wait_mutex);
1872 if (wsi->wait_thread) {
1873 pthread_cancel(wsi->wait_thread);
1874 pthread_join(wsi->wait_thread, NULL);
1875 }
1876 pthread_mutex_unlock(&wsi->wait_mutex);
1877 pthread_mutex_destroy(&wsi->wait_mutex);
1878 pthread_cond_destroy(&wsi->wait_cond);
1879
1880 vk_free(alloc, wsi);
1881 }
1882 }
1883
1884 /*
1885 * Implement vkReleaseDisplay
1886 */
1887 VkResult
1888 wsi_release_display(VkPhysicalDevice physical_device,
1889 struct wsi_device *wsi_device,
1890 VkDisplayKHR display)
1891 {
1892 struct wsi_display *wsi =
1893 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1894
1895 if (wsi->fd >= 0) {
1896 close(wsi->fd);
1897 wsi->fd = -1;
1898 }
1899 #ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
1900 wsi_display_connector_from_handle(display)->output = None;
1901 #endif
1902
1903 return VK_SUCCESS;
1904 }
1905
1906 #ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
1907
1908 static struct wsi_display_connector *
1909 wsi_display_find_output(struct wsi_device *wsi_device,
1910 xcb_randr_output_t output)
1911 {
1912 struct wsi_display *wsi =
1913 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1914
1915 wsi_for_each_connector(connector, wsi) {
1916 if (connector->output == output)
1917 return connector;
1918 }
1919
1920 return NULL;
1921 }
1922
1923 /*
1924 * Given a RandR output, find the associated kernel connector_id by
1925 * looking at the CONNECTOR_ID property provided by the X server
1926 */
1927
1928 static uint32_t
1929 wsi_display_output_to_connector_id(xcb_connection_t *connection,
1930 xcb_atom_t *connector_id_atom_p,
1931 xcb_randr_output_t output)
1932 {
1933 uint32_t connector_id = 0;
1934 xcb_atom_t connector_id_atom = *connector_id_atom_p;
1935
1936 if (connector_id_atom == 0) {
1937 /* Go dig out the CONNECTOR_ID property */
1938 xcb_intern_atom_cookie_t ia_c = xcb_intern_atom(connection,
1939 true,
1940 12,
1941 "CONNECTOR_ID");
1942 xcb_intern_atom_reply_t *ia_r = xcb_intern_atom_reply(connection,
1943 ia_c,
1944 NULL);
1945 if (ia_r) {
1946 *connector_id_atom_p = connector_id_atom = ia_r->atom;
1947 free(ia_r);
1948 }
1949 }
1950
1951 /* If there's an CONNECTOR_ID atom in the server, then there may be a
1952 * CONNECTOR_ID property. Otherwise, there will not be and we don't even
1953 * need to bother.
1954 */
1955 if (connector_id_atom) {
1956
1957 xcb_randr_query_version_cookie_t qv_c =
1958 xcb_randr_query_version(connection, 1, 6);
1959 xcb_randr_get_output_property_cookie_t gop_c =
1960 xcb_randr_get_output_property(connection,
1961 output,
1962 connector_id_atom,
1963 0,
1964 0,
1965 0xffffffffUL,
1966 0,
1967 0);
1968 xcb_randr_query_version_reply_t *qv_r =
1969 xcb_randr_query_version_reply(connection, qv_c, NULL);
1970 free(qv_r);
1971 xcb_randr_get_output_property_reply_t *gop_r =
1972 xcb_randr_get_output_property_reply(connection, gop_c, NULL);
1973 if (gop_r) {
1974 if (gop_r->num_items == 1 && gop_r->format == 32)
1975 memcpy(&connector_id, xcb_randr_get_output_property_data(gop_r), 4);
1976 free(gop_r);
1977 }
1978 }
1979 return connector_id;
1980 }
1981
1982 static bool
1983 wsi_display_check_randr_version(xcb_connection_t *connection)
1984 {
1985 xcb_randr_query_version_cookie_t qv_c =
1986 xcb_randr_query_version(connection, 1, 6);
1987 xcb_randr_query_version_reply_t *qv_r =
1988 xcb_randr_query_version_reply(connection, qv_c, NULL);
1989 bool ret = false;
1990
1991 if (!qv_r)
1992 return false;
1993
1994 /* Check for version 1.6 or newer */
1995 ret = (qv_r->major_version > 1 ||
1996 (qv_r->major_version == 1 && qv_r->minor_version >= 6));
1997
1998 free(qv_r);
1999 return ret;
2000 }
2001
2002 /*
2003 * Given a kernel connector id, find the associated RandR output using the
2004 * CONNECTOR_ID property
2005 */
2006
2007 static xcb_randr_output_t
2008 wsi_display_connector_id_to_output(xcb_connection_t *connection,
2009 uint32_t connector_id)
2010 {
2011 if (!wsi_display_check_randr_version(connection))
2012 return 0;
2013
2014 const xcb_setup_t *setup = xcb_get_setup(connection);
2015
2016 xcb_atom_t connector_id_atom = 0;
2017 xcb_randr_output_t output = 0;
2018
2019 /* Search all of the screens for the provided output */
2020 xcb_screen_iterator_t iter;
2021 for (iter = xcb_setup_roots_iterator(setup);
2022 output == 0 && iter.rem;
2023 xcb_screen_next(&iter))
2024 {
2025 xcb_randr_get_screen_resources_cookie_t gsr_c =
2026 xcb_randr_get_screen_resources(connection, iter.data->root);
2027 xcb_randr_get_screen_resources_reply_t *gsr_r =
2028 xcb_randr_get_screen_resources_reply(connection, gsr_c, NULL);
2029
2030 if (!gsr_r)
2031 return 0;
2032
2033 xcb_randr_output_t *ro = xcb_randr_get_screen_resources_outputs(gsr_r);
2034 int o;
2035
2036 for (o = 0; o < gsr_r->num_outputs; o++) {
2037 if (wsi_display_output_to_connector_id(connection,
2038 &connector_id_atom, ro[o])
2039 == connector_id)
2040 {
2041 output = ro[o];
2042 break;
2043 }
2044 }
2045 free(gsr_r);
2046 }
2047 return output;
2048 }
2049
2050 /*
2051 * Given a RandR output, find out which screen it's associated with
2052 */
2053 static xcb_window_t
2054 wsi_display_output_to_root(xcb_connection_t *connection,
2055 xcb_randr_output_t output)
2056 {
2057 if (!wsi_display_check_randr_version(connection))
2058 return 0;
2059
2060 const xcb_setup_t *setup = xcb_get_setup(connection);
2061 xcb_window_t root = 0;
2062
2063 /* Search all of the screens for the provided output */
2064 for (xcb_screen_iterator_t iter = xcb_setup_roots_iterator(setup);
2065 root == 0 && iter.rem;
2066 xcb_screen_next(&iter))
2067 {
2068 xcb_randr_get_screen_resources_cookie_t gsr_c =
2069 xcb_randr_get_screen_resources(connection, iter.data->root);
2070 xcb_randr_get_screen_resources_reply_t *gsr_r =
2071 xcb_randr_get_screen_resources_reply(connection, gsr_c, NULL);
2072
2073 if (!gsr_r)
2074 return 0;
2075
2076 xcb_randr_output_t *ro = xcb_randr_get_screen_resources_outputs(gsr_r);
2077
2078 for (int o = 0; o < gsr_r->num_outputs; o++) {
2079 if (ro[o] == output) {
2080 root = iter.data->root;
2081 break;
2082 }
2083 }
2084 free(gsr_r);
2085 }
2086 return root;
2087 }
2088
2089 static bool
2090 wsi_display_mode_matches_x(struct wsi_display_mode *wsi,
2091 xcb_randr_mode_info_t *xcb)
2092 {
2093 return wsi->clock == (xcb->dot_clock + 500) / 1000 &&
2094 wsi->hdisplay == xcb->width &&
2095 wsi->hsync_start == xcb->hsync_start &&
2096 wsi->hsync_end == xcb->hsync_end &&
2097 wsi->htotal == xcb->htotal &&
2098 wsi->hskew == xcb->hskew &&
2099 wsi->vdisplay == xcb->height &&
2100 wsi->vsync_start == xcb->vsync_start &&
2101 wsi->vsync_end == xcb->vsync_end &&
2102 wsi->vtotal == xcb->vtotal &&
2103 wsi->vscan <= 1 &&
2104 wsi->flags == xcb->mode_flags;
2105 }
2106
2107 static struct wsi_display_mode *
2108 wsi_display_find_x_mode(struct wsi_device *wsi_device,
2109 struct wsi_display_connector *connector,
2110 xcb_randr_mode_info_t *mode)
2111 {
2112 wsi_for_each_display_mode(display_mode, connector) {
2113 if (wsi_display_mode_matches_x(display_mode, mode))
2114 return display_mode;
2115 }
2116 return NULL;
2117 }
2118
2119 static VkResult
2120 wsi_display_register_x_mode(struct wsi_device *wsi_device,
2121 struct wsi_display_connector *connector,
2122 xcb_randr_mode_info_t *x_mode,
2123 bool preferred)
2124 {
2125 struct wsi_display *wsi =
2126 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2127 struct wsi_display_mode *display_mode =
2128 wsi_display_find_x_mode(wsi_device, connector, x_mode);
2129
2130 if (display_mode) {
2131 display_mode->valid = true;
2132 return VK_SUCCESS;
2133 }
2134
2135 display_mode = vk_zalloc(wsi->alloc, sizeof (struct wsi_display_mode),
2136 8, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
2137 if (!display_mode)
2138 return VK_ERROR_OUT_OF_HOST_MEMORY;
2139
2140 display_mode->connector = connector;
2141 display_mode->valid = true;
2142 display_mode->preferred = preferred;
2143 display_mode->clock = (x_mode->dot_clock + 500) / 1000; /* kHz */
2144 display_mode->hdisplay = x_mode->width;
2145 display_mode->hsync_start = x_mode->hsync_start;
2146 display_mode->hsync_end = x_mode->hsync_end;
2147 display_mode->htotal = x_mode->htotal;
2148 display_mode->hskew = x_mode->hskew;
2149 display_mode->vdisplay = x_mode->height;
2150 display_mode->vsync_start = x_mode->vsync_start;
2151 display_mode->vsync_end = x_mode->vsync_end;
2152 display_mode->vtotal = x_mode->vtotal;
2153 display_mode->vscan = 0;
2154 display_mode->flags = x_mode->mode_flags;
2155
2156 list_addtail(&display_mode->list, &connector->display_modes);
2157 return VK_SUCCESS;
2158 }
2159
2160 static struct wsi_display_connector *
2161 wsi_display_get_output(struct wsi_device *wsi_device,
2162 xcb_connection_t *connection,
2163 xcb_randr_output_t output)
2164 {
2165 struct wsi_display *wsi =
2166 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2167 struct wsi_display_connector *connector;
2168 uint32_t connector_id;
2169
2170 xcb_window_t root = wsi_display_output_to_root(connection, output);
2171 if (!root)
2172 return NULL;
2173
2174 /* See if we already have a connector for this output */
2175 connector = wsi_display_find_output(wsi_device, output);
2176
2177 if (!connector) {
2178 xcb_atom_t connector_id_atom = 0;
2179
2180 /*
2181 * Go get the kernel connector ID for this X output
2182 */
2183 connector_id = wsi_display_output_to_connector_id(connection,
2184 &connector_id_atom,
2185 output);
2186
2187 /* Any X server with lease support will have this atom */
2188 if (!connector_id) {
2189 return NULL;
2190 }
2191
2192 /* See if we already have a connector for this id */
2193 connector = wsi_display_find_connector(wsi_device, connector_id);
2194
2195 if (connector == NULL) {
2196 connector = wsi_display_alloc_connector(wsi, connector_id);
2197 if (!connector) {
2198 return NULL;
2199 }
2200 list_addtail(&connector->list, &wsi->connectors);
2201 }
2202 connector->output = output;
2203 }
2204
2205 xcb_randr_get_screen_resources_cookie_t src =
2206 xcb_randr_get_screen_resources(connection, root);
2207 xcb_randr_get_output_info_cookie_t oic =
2208 xcb_randr_get_output_info(connection, output, XCB_CURRENT_TIME);
2209 xcb_randr_get_screen_resources_reply_t *srr =
2210 xcb_randr_get_screen_resources_reply(connection, src, NULL);
2211 xcb_randr_get_output_info_reply_t *oir =
2212 xcb_randr_get_output_info_reply(connection, oic, NULL);
2213
2214 if (oir && srr) {
2215 /* Get X modes and add them */
2216
2217 connector->connected =
2218 oir->connection != XCB_RANDR_CONNECTION_DISCONNECTED;
2219
2220 wsi_display_invalidate_connector_modes(wsi_device, connector);
2221
2222 xcb_randr_mode_t *x_modes = xcb_randr_get_output_info_modes(oir);
2223 for (int m = 0; m < oir->num_modes; m++) {
2224 xcb_randr_mode_info_iterator_t i =
2225 xcb_randr_get_screen_resources_modes_iterator(srr);
2226 while (i.rem) {
2227 xcb_randr_mode_info_t *mi = i.data;
2228 if (mi->id == x_modes[m]) {
2229 VkResult result = wsi_display_register_x_mode(
2230 wsi_device, connector, mi, m < oir->num_preferred);
2231 if (result != VK_SUCCESS) {
2232 free(oir);
2233 free(srr);
2234 return NULL;
2235 }
2236 break;
2237 }
2238 xcb_randr_mode_info_next(&i);
2239 }
2240 }
2241 }
2242
2243 free(oir);
2244 free(srr);
2245 return connector;
2246 }
2247
2248 static xcb_randr_crtc_t
2249 wsi_display_find_crtc_for_output(xcb_connection_t *connection,
2250 xcb_window_t root,
2251 xcb_randr_output_t output)
2252 {
2253 xcb_randr_get_screen_resources_cookie_t gsr_c =
2254 xcb_randr_get_screen_resources(connection, root);
2255 xcb_randr_get_screen_resources_reply_t *gsr_r =
2256 xcb_randr_get_screen_resources_reply(connection, gsr_c, NULL);
2257
2258 if (!gsr_r)
2259 return 0;
2260
2261 xcb_randr_crtc_t *rc = xcb_randr_get_screen_resources_crtcs(gsr_r);
2262 xcb_randr_crtc_t idle_crtc = 0;
2263 xcb_randr_crtc_t active_crtc = 0;
2264
2265 /* Find either a crtc already connected to the desired output or idle */
2266 for (int c = 0; active_crtc == 0 && c < gsr_r->num_crtcs; c++) {
2267 xcb_randr_get_crtc_info_cookie_t gci_c =
2268 xcb_randr_get_crtc_info(connection, rc[c], gsr_r->config_timestamp);
2269 xcb_randr_get_crtc_info_reply_t *gci_r =
2270 xcb_randr_get_crtc_info_reply(connection, gci_c, NULL);
2271
2272 if (gci_r) {
2273 if (gci_r->mode) {
2274 int num_outputs = xcb_randr_get_crtc_info_outputs_length(gci_r);
2275 xcb_randr_output_t *outputs =
2276 xcb_randr_get_crtc_info_outputs(gci_r);
2277
2278 if (num_outputs == 1 && outputs[0] == output)
2279 active_crtc = rc[c];
2280
2281 } else if (idle_crtc == 0) {
2282 int num_possible = xcb_randr_get_crtc_info_possible_length(gci_r);
2283 xcb_randr_output_t *possible =
2284 xcb_randr_get_crtc_info_possible(gci_r);
2285
2286 for (int p = 0; p < num_possible; p++)
2287 if (possible[p] == output) {
2288 idle_crtc = rc[c];
2289 break;
2290 }
2291 }
2292 free(gci_r);
2293 }
2294 }
2295 free(gsr_r);
2296
2297 if (active_crtc)
2298 return active_crtc;
2299 return idle_crtc;
2300 }
2301
2302 VkResult
2303 wsi_acquire_xlib_display(VkPhysicalDevice physical_device,
2304 struct wsi_device *wsi_device,
2305 Display *dpy,
2306 VkDisplayKHR display)
2307 {
2308 struct wsi_display *wsi =
2309 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2310 xcb_connection_t *connection = XGetXCBConnection(dpy);
2311 struct wsi_display_connector *connector =
2312 wsi_display_connector_from_handle(display);
2313 xcb_window_t root;
2314
2315 /* XXX no support for multiple leases yet */
2316 if (wsi->fd >= 0)
2317 return VK_ERROR_INITIALIZATION_FAILED;
2318
2319 if (!connector->output) {
2320 connector->output = wsi_display_connector_id_to_output(connection,
2321 connector->id);
2322
2323 /* Check and see if we found the output */
2324 if (!connector->output)
2325 return VK_ERROR_INITIALIZATION_FAILED;
2326 }
2327
2328 root = wsi_display_output_to_root(connection, connector->output);
2329 if (!root)
2330 return VK_ERROR_INITIALIZATION_FAILED;
2331
2332 xcb_randr_crtc_t crtc = wsi_display_find_crtc_for_output(connection,
2333 root,
2334 connector->output);
2335
2336 if (!crtc)
2337 return VK_ERROR_INITIALIZATION_FAILED;
2338
2339 #ifdef HAVE_DRI3_MODIFIERS
2340 xcb_randr_lease_t lease = xcb_generate_id(connection);
2341 xcb_randr_create_lease_cookie_t cl_c =
2342 xcb_randr_create_lease(connection, root, lease, 1, 1,
2343 &crtc, &connector->output);
2344 xcb_randr_create_lease_reply_t *cl_r =
2345 xcb_randr_create_lease_reply(connection, cl_c, NULL);
2346 if (!cl_r)
2347 return VK_ERROR_INITIALIZATION_FAILED;
2348
2349 int fd = -1;
2350 if (cl_r->nfd > 0) {
2351 int *rcl_f = xcb_randr_create_lease_reply_fds(connection, cl_r);
2352
2353 fd = rcl_f[0];
2354 }
2355 free (cl_r);
2356 if (fd < 0)
2357 return VK_ERROR_INITIALIZATION_FAILED;
2358
2359 wsi->fd = fd;
2360 #endif
2361
2362 return VK_SUCCESS;
2363 }
2364
2365 VkResult
2366 wsi_get_randr_output_display(VkPhysicalDevice physical_device,
2367 struct wsi_device *wsi_device,
2368 Display *dpy,
2369 RROutput output,
2370 VkDisplayKHR *display)
2371 {
2372 xcb_connection_t *connection = XGetXCBConnection(dpy);
2373 struct wsi_display_connector *connector =
2374 wsi_display_get_output(wsi_device, connection, (xcb_randr_output_t) output);
2375
2376 if (connector)
2377 *display = wsi_display_connector_to_handle(connector);
2378 else
2379 *display = VK_NULL_HANDLE;
2380 return VK_SUCCESS;
2381 }
2382
2383 #endif
2384
2385 /* VK_EXT_display_control */
2386 VkResult
2387 wsi_display_power_control(VkDevice device,
2388 struct wsi_device *wsi_device,
2389 VkDisplayKHR display,
2390 const VkDisplayPowerInfoEXT *display_power_info)
2391 {
2392 struct wsi_display *wsi =
2393 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2394 struct wsi_display_connector *connector =
2395 wsi_display_connector_from_handle(display);
2396 int mode;
2397
2398 if (wsi->fd < 0)
2399 return VK_ERROR_INITIALIZATION_FAILED;
2400
2401 switch (display_power_info->powerState) {
2402 case VK_DISPLAY_POWER_STATE_OFF_EXT:
2403 mode = DRM_MODE_DPMS_OFF;
2404 break;
2405 case VK_DISPLAY_POWER_STATE_SUSPEND_EXT:
2406 mode = DRM_MODE_DPMS_SUSPEND;
2407 break;
2408 default:
2409 mode = DRM_MODE_DPMS_ON;
2410 break;
2411 }
2412 drmModeConnectorSetProperty(wsi->fd,
2413 connector->id,
2414 connector->dpms_property,
2415 mode);
2416 return VK_SUCCESS;
2417 }
2418
2419 VkResult
2420 wsi_register_device_event(VkDevice device,
2421 struct wsi_device *wsi_device,
2422 const VkDeviceEventInfoEXT *device_event_info,
2423 const VkAllocationCallbacks *allocator,
2424 struct wsi_fence **fence_p)
2425 {
2426 return VK_ERROR_FEATURE_NOT_PRESENT;
2427 }
2428
2429 VkResult
2430 wsi_register_display_event(VkDevice device,
2431 struct wsi_device *wsi_device,
2432 VkDisplayKHR display,
2433 const VkDisplayEventInfoEXT *display_event_info,
2434 const VkAllocationCallbacks *allocator,
2435 struct wsi_fence **fence_p)
2436 {
2437 struct wsi_display *wsi =
2438 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2439 struct wsi_display_fence *fence;
2440 VkResult ret;
2441
2442 switch (display_event_info->displayEvent) {
2443 case VK_DISPLAY_EVENT_TYPE_FIRST_PIXEL_OUT_EXT:
2444
2445 fence = wsi_display_fence_alloc(device, wsi_device, display, allocator);
2446
2447 if (!fence)
2448 return VK_ERROR_OUT_OF_HOST_MEMORY;
2449
2450 ret = wsi_register_vblank_event(fence, wsi_device, display,
2451 DRM_CRTC_SEQUENCE_RELATIVE, 1, NULL);
2452
2453 if (ret == VK_SUCCESS)
2454 *fence_p = &fence->base;
2455 else if (fence != NULL)
2456 vk_free2(wsi->alloc, allocator, fence);
2457
2458 break;
2459 default:
2460 ret = VK_ERROR_FEATURE_NOT_PRESENT;
2461 break;
2462 }
2463
2464 return ret;
2465 }
2466
2467
2468 VkResult
2469 wsi_get_swapchain_counter(VkDevice device,
2470 struct wsi_device *wsi_device,
2471 VkSwapchainKHR _swapchain,
2472 VkSurfaceCounterFlagBitsEXT flag_bits,
2473 uint64_t *value)
2474 {
2475 struct wsi_display *wsi =
2476 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2477 struct wsi_display_swapchain *swapchain =
2478 (struct wsi_display_swapchain *) wsi_swapchain_from_handle(_swapchain);
2479 struct wsi_display_connector *connector =
2480 wsi_display_mode_from_handle(swapchain->surface->displayMode)->connector;
2481
2482 if (wsi->fd < 0)
2483 return VK_ERROR_INITIALIZATION_FAILED;
2484
2485 if (!connector->active) {
2486 *value = 0;
2487 return VK_SUCCESS;
2488 }
2489
2490 int ret = drmCrtcGetSequence(wsi->fd, connector->crtc_id, value, NULL);
2491 if (ret)
2492 *value = 0;
2493
2494 return VK_SUCCESS;
2495 }
2496