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