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wsi/wayland: only finish() a successfully init()ed display
[mesa.git] / src / vulkan / wsi / wsi_common_display.c
1 /*
2 * Copyright © 2017 Keith Packard
3 *
4 * Permission to use, copy, modify, distribute, and sell this software and its
5 * documentation for any purpose is hereby granted without fee, provided that
6 * the above copyright notice appear in all copies and that both that copyright
7 * notice and this permission notice appear in supporting documentation, and
8 * that the name of the copyright holders not be used in advertising or
9 * publicity pertaining to distribution of the software without specific,
10 * written prior permission. The copyright holders make no representations
11 * about the suitability of this software for any purpose. It is provided "as
12 * is" without express or implied warranty.
13 *
14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
20 * OF THIS SOFTWARE.
21 */
22
23 #include "util/macros.h"
24 #include <stdlib.h>
25 #include <stdio.h>
26 #include <unistd.h>
27 #include <errno.h>
28 #include <string.h>
29 #include <fcntl.h>
30 #include <poll.h>
31 #include <stdbool.h>
32 #include <math.h>
33 #include <xf86drm.h>
34 #include <xf86drmMode.h>
35 #include <drm_fourcc.h>
36 #ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
37 #include <xcb/randr.h>
38 #include <X11/Xlib-xcb.h>
39 #endif
40 #include "util/hash_table.h"
41 #include "util/list.h"
42
43 #include "vk_util.h"
44 #include "wsi_common_private.h"
45 #include "wsi_common_display.h"
46 #include "wsi_common_queue.h"
47
48 #if 0
49 #define wsi_display_debug(...) fprintf(stderr, __VA_ARGS__)
50 #define wsi_display_debug_code(...) __VA_ARGS__
51 #else
52 #define wsi_display_debug(...)
53 #define wsi_display_debug_code(...)
54 #endif
55
56 /* These have lifetime equal to the instance, so they effectively
57 * never go away. This means we must keep track of them separately
58 * from all other resources.
59 */
60 typedef struct wsi_display_mode {
61 struct list_head list;
62 struct wsi_display_connector *connector;
63 bool valid; /* was found in most recent poll */
64 bool preferred;
65 uint32_t clock; /* in kHz */
66 uint16_t hdisplay, hsync_start, hsync_end, htotal, hskew;
67 uint16_t vdisplay, vsync_start, vsync_end, vtotal, vscan;
68 uint32_t flags;
69 } wsi_display_mode;
70
71 typedef struct wsi_display_connector {
72 struct list_head list;
73 struct wsi_display *wsi;
74 uint32_t id;
75 uint32_t crtc_id;
76 char *name;
77 bool connected;
78 bool active;
79 struct list_head display_modes;
80 wsi_display_mode *current_mode;
81 drmModeModeInfo current_drm_mode;
82 uint32_t dpms_property;
83 #ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
84 xcb_randr_output_t output;
85 #endif
86 } wsi_display_connector;
87
88 struct wsi_display {
89 struct wsi_interface base;
90
91 const VkAllocationCallbacks *alloc;
92
93 int fd;
94
95 pthread_mutex_t wait_mutex;
96 pthread_cond_t wait_cond;
97 pthread_t wait_thread;
98
99 struct list_head connectors;
100 };
101
102 #define wsi_for_each_display_mode(_mode, _conn) \
103 list_for_each_entry_safe(struct wsi_display_mode, _mode, \
104 &(_conn)->display_modes, list)
105
106 #define wsi_for_each_connector(_conn, _dev) \
107 list_for_each_entry_safe(struct wsi_display_connector, _conn, \
108 &(_dev)->connectors, list)
109
110 enum wsi_image_state {
111 WSI_IMAGE_IDLE,
112 WSI_IMAGE_DRAWING,
113 WSI_IMAGE_QUEUED,
114 WSI_IMAGE_FLIPPING,
115 WSI_IMAGE_DISPLAYING
116 };
117
118 struct wsi_display_image {
119 struct wsi_image base;
120 struct wsi_display_swapchain *chain;
121 enum wsi_image_state state;
122 uint32_t fb_id;
123 uint32_t buffer[4];
124 uint64_t flip_sequence;
125 };
126
127 struct wsi_display_swapchain {
128 struct wsi_swapchain base;
129 struct wsi_display *wsi;
130 VkIcdSurfaceDisplay *surface;
131 uint64_t flip_sequence;
132 VkResult status;
133 struct wsi_display_image images[0];
134 };
135
136 struct wsi_display_fence {
137 struct wsi_fence base;
138 bool event_received;
139 bool destroyed;
140 uint64_t sequence;
141 };
142
143 static uint64_t fence_sequence;
144
145 ICD_DEFINE_NONDISP_HANDLE_CASTS(wsi_display_mode, VkDisplayModeKHR)
146 ICD_DEFINE_NONDISP_HANDLE_CASTS(wsi_display_connector, VkDisplayKHR)
147
148 static bool
149 wsi_display_mode_matches_drm(wsi_display_mode *wsi,
150 drmModeModeInfoPtr drm)
151 {
152 return wsi->clock == drm->clock &&
153 wsi->hdisplay == drm->hdisplay &&
154 wsi->hsync_start == drm->hsync_start &&
155 wsi->hsync_end == drm->hsync_end &&
156 wsi->htotal == drm->htotal &&
157 wsi->hskew == drm->hskew &&
158 wsi->vdisplay == drm->vdisplay &&
159 wsi->vsync_start == drm->vsync_start &&
160 wsi->vsync_end == drm->vsync_end &&
161 wsi->vtotal == drm->vtotal &&
162 MAX2(wsi->vscan, 1) == MAX2(drm->vscan, 1) &&
163 wsi->flags == drm->flags;
164 }
165
166 static double
167 wsi_display_mode_refresh(struct wsi_display_mode *wsi)
168 {
169 return (double) wsi->clock * 1000.0 / ((double) wsi->htotal *
170 (double) wsi->vtotal *
171 (double) MAX2(wsi->vscan, 1));
172 }
173
174 static uint64_t wsi_get_current_monotonic(void)
175 {
176 struct timespec tv;
177
178 clock_gettime(CLOCK_MONOTONIC, &tv);
179 return tv.tv_nsec + tv.tv_sec*1000000000ull;
180 }
181
182 static uint64_t wsi_rel_to_abs_time(uint64_t rel_time)
183 {
184 uint64_t current_time = wsi_get_current_monotonic();
185
186 /* check for overflow */
187 if (rel_time > UINT64_MAX - current_time)
188 return UINT64_MAX;
189
190 return current_time + rel_time;
191 }
192
193 static struct wsi_display_mode *
194 wsi_display_find_drm_mode(struct wsi_device *wsi_device,
195 struct wsi_display_connector *connector,
196 drmModeModeInfoPtr mode)
197 {
198 wsi_for_each_display_mode(display_mode, connector) {
199 if (wsi_display_mode_matches_drm(display_mode, mode))
200 return display_mode;
201 }
202 return NULL;
203 }
204
205 static void
206 wsi_display_invalidate_connector_modes(struct wsi_device *wsi_device,
207 struct wsi_display_connector *connector)
208 {
209 wsi_for_each_display_mode(display_mode, connector) {
210 display_mode->valid = false;
211 }
212 }
213
214 static VkResult
215 wsi_display_register_drm_mode(struct wsi_device *wsi_device,
216 struct wsi_display_connector *connector,
217 drmModeModeInfoPtr drm_mode)
218 {
219 struct wsi_display *wsi =
220 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
221 struct wsi_display_mode *display_mode =
222 wsi_display_find_drm_mode(wsi_device, connector, drm_mode);
223
224 if (display_mode) {
225 display_mode->valid = true;
226 return VK_SUCCESS;
227 }
228
229 display_mode = vk_zalloc(wsi->alloc, sizeof (struct wsi_display_mode),
230 8, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
231 if (!display_mode)
232 return VK_ERROR_OUT_OF_HOST_MEMORY;
233
234 display_mode->connector = connector;
235 display_mode->valid = true;
236 display_mode->preferred = (drm_mode->type & DRM_MODE_TYPE_PREFERRED) != 0;
237 display_mode->clock = drm_mode->clock; /* kHz */
238 display_mode->hdisplay = drm_mode->hdisplay;
239 display_mode->hsync_start = drm_mode->hsync_start;
240 display_mode->hsync_end = drm_mode->hsync_end;
241 display_mode->htotal = drm_mode->htotal;
242 display_mode->hskew = drm_mode->hskew;
243 display_mode->vdisplay = drm_mode->vdisplay;
244 display_mode->vsync_start = drm_mode->vsync_start;
245 display_mode->vsync_end = drm_mode->vsync_end;
246 display_mode->vtotal = drm_mode->vtotal;
247 display_mode->vscan = drm_mode->vscan;
248 display_mode->flags = drm_mode->flags;
249
250 list_addtail(&display_mode->list, &connector->display_modes);
251 return VK_SUCCESS;
252 }
253
254 /*
255 * Update our information about a specific connector
256 */
257
258 static struct wsi_display_connector *
259 wsi_display_find_connector(struct wsi_device *wsi_device,
260 uint32_t connector_id)
261 {
262 struct wsi_display *wsi =
263 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
264
265 wsi_for_each_connector(connector, wsi) {
266 if (connector->id == connector_id)
267 return connector;
268 }
269
270 return NULL;
271 }
272
273 static struct wsi_display_connector *
274 wsi_display_alloc_connector(struct wsi_display *wsi,
275 uint32_t connector_id)
276 {
277 struct wsi_display_connector *connector =
278 vk_zalloc(wsi->alloc, sizeof (struct wsi_display_connector),
279 8, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
280
281 connector->id = connector_id;
282 connector->wsi = wsi;
283 connector->active = false;
284 /* XXX use EDID name */
285 connector->name = "monitor";
286 list_inithead(&connector->display_modes);
287 return connector;
288 }
289
290 static struct wsi_display_connector *
291 wsi_display_get_connector(struct wsi_device *wsi_device,
292 uint32_t connector_id)
293 {
294 struct wsi_display *wsi =
295 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
296
297 if (wsi->fd < 0)
298 return NULL;
299
300 drmModeConnectorPtr drm_connector =
301 drmModeGetConnector(wsi->fd, connector_id);
302
303 if (!drm_connector)
304 return NULL;
305
306 struct wsi_display_connector *connector =
307 wsi_display_find_connector(wsi_device, connector_id);
308
309 if (!connector) {
310 connector = wsi_display_alloc_connector(wsi, connector_id);
311 if (!connector) {
312 drmModeFreeConnector(drm_connector);
313 return NULL;
314 }
315 list_addtail(&connector->list, &wsi->connectors);
316 }
317
318 connector->connected = drm_connector->connection != DRM_MODE_DISCONNECTED;
319
320 /* Look for a DPMS property if we haven't already found one */
321 for (int p = 0; connector->dpms_property == 0 &&
322 p < drm_connector->count_props; p++)
323 {
324 drmModePropertyPtr prop = drmModeGetProperty(wsi->fd,
325 drm_connector->props[p]);
326 if (!prop)
327 continue;
328 if (prop->flags & DRM_MODE_PROP_ENUM) {
329 if (!strcmp(prop->name, "DPMS"))
330 connector->dpms_property = drm_connector->props[p];
331 }
332 drmModeFreeProperty(prop);
333 }
334
335 /* Mark all connector modes as invalid */
336 wsi_display_invalidate_connector_modes(wsi_device, connector);
337
338 /*
339 * List current modes, adding new ones and marking existing ones as
340 * valid
341 */
342 for (int m = 0; m < drm_connector->count_modes; m++) {
343 VkResult result = wsi_display_register_drm_mode(wsi_device,
344 connector,
345 &drm_connector->modes[m]);
346 if (result != VK_SUCCESS) {
347 drmModeFreeConnector(drm_connector);
348 return NULL;
349 }
350 }
351
352 drmModeFreeConnector(drm_connector);
353
354 return connector;
355 }
356
357 #define MM_PER_PIXEL (1.0/96.0 * 25.4)
358
359 static uint32_t
360 mode_size(struct wsi_display_mode *mode)
361 {
362 /* fortunately, these are both uint16_t, so this is easy */
363 return (uint32_t) mode->hdisplay * (uint32_t) mode->vdisplay;
364 }
365
366 static void
367 wsi_display_fill_in_display_properties(struct wsi_device *wsi_device,
368 struct wsi_display_connector *connector,
369 VkDisplayProperties2KHR *properties2)
370 {
371 assert(properties2->sType == VK_STRUCTURE_TYPE_DISPLAY_PROPERTIES_2_KHR);
372 VkDisplayPropertiesKHR *properties = &properties2->displayProperties;
373
374 properties->display = wsi_display_connector_to_handle(connector);
375 properties->displayName = connector->name;
376
377 /* Find the first preferred mode and assume that's the physical
378 * resolution. If there isn't a preferred mode, find the largest mode and
379 * use that.
380 */
381
382 struct wsi_display_mode *preferred_mode = NULL, *largest_mode = NULL;
383 wsi_for_each_display_mode(display_mode, connector) {
384 if (!display_mode->valid)
385 continue;
386 if (display_mode->preferred) {
387 preferred_mode = display_mode;
388 break;
389 }
390 if (largest_mode == NULL ||
391 mode_size(display_mode) > mode_size(largest_mode))
392 {
393 largest_mode = display_mode;
394 }
395 }
396
397 if (preferred_mode) {
398 properties->physicalResolution.width = preferred_mode->hdisplay;
399 properties->physicalResolution.height = preferred_mode->vdisplay;
400 } else if (largest_mode) {
401 properties->physicalResolution.width = largest_mode->hdisplay;
402 properties->physicalResolution.height = largest_mode->vdisplay;
403 } else {
404 properties->physicalResolution.width = 1024;
405 properties->physicalResolution.height = 768;
406 }
407
408 /* Make up physical size based on 96dpi */
409 properties->physicalDimensions.width =
410 floor(properties->physicalResolution.width * MM_PER_PIXEL + 0.5);
411 properties->physicalDimensions.height =
412 floor(properties->physicalResolution.height * MM_PER_PIXEL + 0.5);
413
414 properties->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
415 properties->planeReorderPossible = VK_FALSE;
416 properties->persistentContent = VK_FALSE;
417 }
418
419 /*
420 * Implement vkGetPhysicalDeviceDisplayPropertiesKHR (VK_KHR_display)
421 */
422 VkResult
423 wsi_display_get_physical_device_display_properties(
424 VkPhysicalDevice physical_device,
425 struct wsi_device *wsi_device,
426 uint32_t *property_count,
427 VkDisplayPropertiesKHR *properties)
428 {
429 struct wsi_display *wsi =
430 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
431
432 if (properties == NULL) {
433 return wsi_display_get_physical_device_display_properties2(
434 physical_device, wsi_device, property_count, NULL);
435 } else {
436 /* If we're actually returning properties, allocate a temporary array of
437 * VkDisplayProperties2KHR structs, call properties2 to fill them out,
438 * and then copy them to the client. This seems a bit expensive but
439 * wsi_display_get_physical_device_display_properties2() calls
440 * drmModeGetResources() which does an ioctl and then a bunch of
441 * allocations so this should get lost in the noise.
442 */
443 VkDisplayProperties2KHR *props2 =
444 vk_zalloc(wsi->alloc, sizeof(*props2) * *property_count, 8,
445 VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
446 if (props2 == NULL)
447 return VK_ERROR_OUT_OF_HOST_MEMORY;
448
449 for (uint32_t i = 0; i < *property_count; i++)
450 props2[i].sType = VK_STRUCTURE_TYPE_DISPLAY_PROPERTIES_2_KHR;
451
452 VkResult result = wsi_display_get_physical_device_display_properties2(
453 physical_device, wsi_device, property_count, props2);
454
455 if (result == VK_SUCCESS || result == VK_INCOMPLETE) {
456 for (uint32_t i = 0; i < *property_count; i++)
457 properties[i] = props2[i].displayProperties;
458 }
459
460 vk_free(wsi->alloc, props2);
461
462 return result;
463 }
464 }
465
466 VkResult
467 wsi_display_get_physical_device_display_properties2(
468 VkPhysicalDevice physical_device,
469 struct wsi_device *wsi_device,
470 uint32_t *property_count,
471 VkDisplayProperties2KHR *properties)
472 {
473 struct wsi_display *wsi =
474 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
475
476 if (wsi->fd < 0)
477 goto bail;
478
479 drmModeResPtr mode_res = drmModeGetResources(wsi->fd);
480
481 if (!mode_res)
482 goto bail;
483
484 VK_OUTARRAY_MAKE(conn, properties, property_count);
485
486 /* Get current information */
487
488 for (int c = 0; c < mode_res->count_connectors; c++) {
489 struct wsi_display_connector *connector =
490 wsi_display_get_connector(wsi_device, mode_res->connectors[c]);
491
492 if (!connector) {
493 drmModeFreeResources(mode_res);
494 return VK_ERROR_OUT_OF_HOST_MEMORY;
495 }
496
497 if (connector->connected) {
498 vk_outarray_append(&conn, prop) {
499 wsi_display_fill_in_display_properties(wsi_device,
500 connector,
501 prop);
502 }
503 }
504 }
505
506 drmModeFreeResources(mode_res);
507
508 return vk_outarray_status(&conn);
509
510 bail:
511 *property_count = 0;
512 return VK_SUCCESS;
513 }
514
515 /*
516 * Implement vkGetPhysicalDeviceDisplayPlanePropertiesKHR (VK_KHR_display
517 */
518 static void
519 wsi_display_fill_in_display_plane_properties(
520 struct wsi_device *wsi_device,
521 struct wsi_display_connector *connector,
522 VkDisplayPlaneProperties2KHR *properties)
523 {
524 assert(properties->sType == VK_STRUCTURE_TYPE_DISPLAY_PLANE_PROPERTIES_2_KHR);
525 VkDisplayPlanePropertiesKHR *prop = &properties->displayPlaneProperties;
526
527 if (connector && connector->active) {
528 prop->currentDisplay = wsi_display_connector_to_handle(connector);
529 prop->currentStackIndex = 0;
530 } else {
531 prop->currentDisplay = VK_NULL_HANDLE;
532 prop->currentStackIndex = 0;
533 }
534 }
535
536 VkResult
537 wsi_display_get_physical_device_display_plane_properties(
538 VkPhysicalDevice physical_device,
539 struct wsi_device *wsi_device,
540 uint32_t *property_count,
541 VkDisplayPlanePropertiesKHR *properties)
542 {
543 struct wsi_display *wsi =
544 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
545
546 VK_OUTARRAY_MAKE(conn, properties, property_count);
547
548 wsi_for_each_connector(connector, wsi) {
549 vk_outarray_append(&conn, prop) {
550 VkDisplayPlaneProperties2KHR prop2 = {
551 .sType = VK_STRUCTURE_TYPE_DISPLAY_PLANE_PROPERTIES_2_KHR,
552 };
553 wsi_display_fill_in_display_plane_properties(wsi_device, connector,
554 &prop2);
555 *prop = prop2.displayPlaneProperties;
556 }
557 }
558 return vk_outarray_status(&conn);
559 }
560
561 VkResult
562 wsi_display_get_physical_device_display_plane_properties2(
563 VkPhysicalDevice physical_device,
564 struct wsi_device *wsi_device,
565 uint32_t *property_count,
566 VkDisplayPlaneProperties2KHR *properties)
567 {
568 struct wsi_display *wsi =
569 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
570
571 VK_OUTARRAY_MAKE(conn, properties, property_count);
572
573 wsi_for_each_connector(connector, wsi) {
574 vk_outarray_append(&conn, prop) {
575 wsi_display_fill_in_display_plane_properties(wsi_device, connector,
576 prop);
577 }
578 }
579 return vk_outarray_status(&conn);
580 }
581
582 /*
583 * Implement vkGetDisplayPlaneSupportedDisplaysKHR (VK_KHR_display)
584 */
585
586 VkResult
587 wsi_display_get_display_plane_supported_displays(
588 VkPhysicalDevice physical_device,
589 struct wsi_device *wsi_device,
590 uint32_t plane_index,
591 uint32_t *display_count,
592 VkDisplayKHR *displays)
593 {
594 struct wsi_display *wsi =
595 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
596
597 VK_OUTARRAY_MAKE(conn, displays, display_count);
598
599 int c = 0;
600
601 wsi_for_each_connector(connector, wsi) {
602 if (c == plane_index && connector->connected) {
603 vk_outarray_append(&conn, display) {
604 *display = wsi_display_connector_to_handle(connector);
605 }
606 }
607 c++;
608 }
609 return vk_outarray_status(&conn);
610 }
611
612 /*
613 * Implement vkGetDisplayModePropertiesKHR (VK_KHR_display)
614 */
615
616 static void
617 wsi_display_fill_in_display_mode_properties(
618 struct wsi_device *wsi_device,
619 struct wsi_display_mode *display_mode,
620 VkDisplayModeProperties2KHR *properties)
621 {
622 assert(properties->sType == VK_STRUCTURE_TYPE_DISPLAY_MODE_PROPERTIES_2_KHR);
623 VkDisplayModePropertiesKHR *prop = &properties->displayModeProperties;
624
625 prop->displayMode = wsi_display_mode_to_handle(display_mode);
626 prop->parameters.visibleRegion.width = display_mode->hdisplay;
627 prop->parameters.visibleRegion.height = display_mode->vdisplay;
628 prop->parameters.refreshRate =
629 (uint32_t) (wsi_display_mode_refresh(display_mode) * 1000 + 0.5);
630 }
631
632 VkResult
633 wsi_display_get_display_mode_properties(VkPhysicalDevice physical_device,
634 struct wsi_device *wsi_device,
635 VkDisplayKHR display,
636 uint32_t *property_count,
637 VkDisplayModePropertiesKHR *properties)
638 {
639 struct wsi_display_connector *connector =
640 wsi_display_connector_from_handle(display);
641
642 VK_OUTARRAY_MAKE(conn, properties, property_count);
643
644 wsi_for_each_display_mode(display_mode, connector) {
645 if (!display_mode->valid)
646 continue;
647
648 vk_outarray_append(&conn, prop) {
649 VkDisplayModeProperties2KHR prop2 = {
650 .sType = VK_STRUCTURE_TYPE_DISPLAY_MODE_PROPERTIES_2_KHR,
651 };
652 wsi_display_fill_in_display_mode_properties(wsi_device,
653 display_mode, &prop2);
654 *prop = prop2.displayModeProperties;
655 }
656 }
657 return vk_outarray_status(&conn);
658 }
659
660 VkResult
661 wsi_display_get_display_mode_properties2(VkPhysicalDevice physical_device,
662 struct wsi_device *wsi_device,
663 VkDisplayKHR display,
664 uint32_t *property_count,
665 VkDisplayModeProperties2KHR *properties)
666 {
667 struct wsi_display_connector *connector =
668 wsi_display_connector_from_handle(display);
669
670 VK_OUTARRAY_MAKE(conn, properties, property_count);
671
672 wsi_for_each_display_mode(display_mode, connector) {
673 if (!display_mode->valid)
674 continue;
675
676 vk_outarray_append(&conn, prop) {
677 wsi_display_fill_in_display_mode_properties(wsi_device,
678 display_mode, prop);
679 }
680 }
681 return vk_outarray_status(&conn);
682 }
683
684 static bool
685 wsi_display_mode_matches_vk(wsi_display_mode *wsi,
686 const VkDisplayModeParametersKHR *vk)
687 {
688 return (vk->visibleRegion.width == wsi->hdisplay &&
689 vk->visibleRegion.height == wsi->vdisplay &&
690 fabs(wsi_display_mode_refresh(wsi) * 1000.0 - vk->refreshRate) < 10);
691 }
692
693 /*
694 * Implement vkCreateDisplayModeKHR (VK_KHR_display)
695 */
696 VkResult
697 wsi_display_create_display_mode(VkPhysicalDevice physical_device,
698 struct wsi_device *wsi_device,
699 VkDisplayKHR display,
700 const VkDisplayModeCreateInfoKHR *create_info,
701 const VkAllocationCallbacks *allocator,
702 VkDisplayModeKHR *mode)
703 {
704 struct wsi_display_connector *connector =
705 wsi_display_connector_from_handle(display);
706
707 if (create_info->flags != 0)
708 return VK_ERROR_INITIALIZATION_FAILED;
709
710 /* Check and see if the requested mode happens to match an existing one and
711 * return that. This makes the conformance suite happy. Doing more than
712 * this would involve embedding the CVT function into the driver, which seems
713 * excessive.
714 */
715 wsi_for_each_display_mode(display_mode, connector) {
716 if (display_mode->valid) {
717 if (wsi_display_mode_matches_vk(display_mode, &create_info->parameters)) {
718 *mode = wsi_display_mode_to_handle(display_mode);
719 return VK_SUCCESS;
720 }
721 }
722 }
723 return VK_ERROR_INITIALIZATION_FAILED;
724 }
725
726 /*
727 * Implement vkGetDisplayPlaneCapabilities
728 */
729 VkResult
730 wsi_get_display_plane_capabilities(VkPhysicalDevice physical_device,
731 struct wsi_device *wsi_device,
732 VkDisplayModeKHR mode_khr,
733 uint32_t plane_index,
734 VkDisplayPlaneCapabilitiesKHR *capabilities)
735 {
736 struct wsi_display_mode *mode = wsi_display_mode_from_handle(mode_khr);
737
738 /* XXX use actual values */
739 capabilities->supportedAlpha = VK_DISPLAY_PLANE_ALPHA_OPAQUE_BIT_KHR;
740 capabilities->minSrcPosition.x = 0;
741 capabilities->minSrcPosition.y = 0;
742 capabilities->maxSrcPosition.x = 0;
743 capabilities->maxSrcPosition.y = 0;
744 capabilities->minSrcExtent.width = mode->hdisplay;
745 capabilities->minSrcExtent.height = mode->vdisplay;
746 capabilities->maxSrcExtent.width = mode->hdisplay;
747 capabilities->maxSrcExtent.height = mode->vdisplay;
748 capabilities->minDstPosition.x = 0;
749 capabilities->minDstPosition.y = 0;
750 capabilities->maxDstPosition.x = 0;
751 capabilities->maxDstPosition.y = 0;
752 capabilities->minDstExtent.width = mode->hdisplay;
753 capabilities->minDstExtent.height = mode->vdisplay;
754 capabilities->maxDstExtent.width = mode->hdisplay;
755 capabilities->maxDstExtent.height = mode->vdisplay;
756 return VK_SUCCESS;
757 }
758
759 VkResult
760 wsi_get_display_plane_capabilities2(
761 VkPhysicalDevice physical_device,
762 struct wsi_device *wsi_device,
763 const VkDisplayPlaneInfo2KHR *pDisplayPlaneInfo,
764 VkDisplayPlaneCapabilities2KHR *capabilities)
765 {
766 assert(capabilities->sType ==
767 VK_STRUCTURE_TYPE_DISPLAY_PLANE_CAPABILITIES_2_KHR);
768
769 return wsi_get_display_plane_capabilities(physical_device, wsi_device,
770 pDisplayPlaneInfo->mode,
771 pDisplayPlaneInfo->planeIndex,
772 &capabilities->capabilities);
773 }
774
775 VkResult
776 wsi_create_display_surface(VkInstance instance,
777 const VkAllocationCallbacks *allocator,
778 const VkDisplaySurfaceCreateInfoKHR *create_info,
779 VkSurfaceKHR *surface_khr)
780 {
781 VkIcdSurfaceDisplay *surface = vk_zalloc(allocator, sizeof *surface, 8,
782 VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
783
784 if (surface == NULL)
785 return VK_ERROR_OUT_OF_HOST_MEMORY;
786
787 surface->base.platform = VK_ICD_WSI_PLATFORM_DISPLAY;
788
789 surface->displayMode = create_info->displayMode;
790 surface->planeIndex = create_info->planeIndex;
791 surface->planeStackIndex = create_info->planeStackIndex;
792 surface->transform = create_info->transform;
793 surface->globalAlpha = create_info->globalAlpha;
794 surface->alphaMode = create_info->alphaMode;
795 surface->imageExtent = create_info->imageExtent;
796
797 *surface_khr = VkIcdSurfaceBase_to_handle(&surface->base);
798 return VK_SUCCESS;
799 }
800
801
802 static VkResult
803 wsi_display_surface_get_support(VkIcdSurfaceBase *surface,
804 struct wsi_device *wsi_device,
805 uint32_t queueFamilyIndex,
806 VkBool32* pSupported)
807 {
808 *pSupported = VK_TRUE;
809 return VK_SUCCESS;
810 }
811
812 static VkResult
813 wsi_display_surface_get_capabilities(VkIcdSurfaceBase *surface_base,
814 VkSurfaceCapabilitiesKHR* caps)
815 {
816 VkIcdSurfaceDisplay *surface = (VkIcdSurfaceDisplay *) surface_base;
817 wsi_display_mode *mode = wsi_display_mode_from_handle(surface->displayMode);
818
819 caps->currentExtent.width = mode->hdisplay;
820 caps->currentExtent.height = mode->vdisplay;
821
822 /* XXX Figure out extents based on driver capabilities */
823 caps->maxImageExtent = caps->minImageExtent = caps->currentExtent;
824
825 caps->supportedCompositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
826
827 caps->minImageCount = 2;
828 caps->maxImageCount = 0;
829
830 caps->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
831 caps->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
832 caps->maxImageArrayLayers = 1;
833 caps->supportedUsageFlags =
834 VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
835 VK_IMAGE_USAGE_SAMPLED_BIT |
836 VK_IMAGE_USAGE_TRANSFER_DST_BIT |
837 VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
838
839 return VK_SUCCESS;
840 }
841
842 static VkResult
843 wsi_display_surface_get_surface_counters(
844 VkIcdSurfaceBase *surface_base,
845 VkSurfaceCounterFlagsEXT *counters)
846 {
847 *counters = VK_SURFACE_COUNTER_VBLANK_EXT;
848 return VK_SUCCESS;
849 }
850
851 static VkResult
852 wsi_display_surface_get_capabilities2(VkIcdSurfaceBase *icd_surface,
853 const void *info_next,
854 VkSurfaceCapabilities2KHR *caps)
855 {
856 assert(caps->sType == VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES_2_KHR);
857 VkResult result;
858
859 result = wsi_display_surface_get_capabilities(icd_surface,
860 &caps->surfaceCapabilities);
861 if (result != VK_SUCCESS)
862 return result;
863
864 struct wsi_surface_supported_counters *counters =
865 vk_find_struct( caps->pNext, WSI_SURFACE_SUPPORTED_COUNTERS_MESA);
866
867 if (counters) {
868 result = wsi_display_surface_get_surface_counters(
869 icd_surface,
870 &counters->supported_surface_counters);
871 }
872
873 return result;
874 }
875
876 static const struct {
877 VkFormat format;
878 uint32_t drm_format;
879 } available_surface_formats[] = {
880 { .format = VK_FORMAT_B8G8R8A8_SRGB, .drm_format = DRM_FORMAT_XRGB8888 },
881 { .format = VK_FORMAT_B8G8R8A8_UNORM, .drm_format = DRM_FORMAT_XRGB8888 },
882 };
883
884 static VkResult
885 wsi_display_surface_get_formats(VkIcdSurfaceBase *icd_surface,
886 struct wsi_device *wsi_device,
887 uint32_t *surface_format_count,
888 VkSurfaceFormatKHR *surface_formats)
889 {
890 VK_OUTARRAY_MAKE(out, surface_formats, surface_format_count);
891
892 for (unsigned i = 0; i < ARRAY_SIZE(available_surface_formats); i++) {
893 vk_outarray_append(&out, f) {
894 f->format = available_surface_formats[i].format;
895 f->colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
896 }
897 }
898
899 return vk_outarray_status(&out);
900 }
901
902 static VkResult
903 wsi_display_surface_get_formats2(VkIcdSurfaceBase *surface,
904 struct wsi_device *wsi_device,
905 const void *info_next,
906 uint32_t *surface_format_count,
907 VkSurfaceFormat2KHR *surface_formats)
908 {
909 VK_OUTARRAY_MAKE(out, surface_formats, surface_format_count);
910
911 for (unsigned i = 0; i < ARRAY_SIZE(available_surface_formats); i++) {
912 vk_outarray_append(&out, f) {
913 assert(f->sType == VK_STRUCTURE_TYPE_SURFACE_FORMAT_2_KHR);
914 f->surfaceFormat.format = available_surface_formats[i].format;
915 f->surfaceFormat.colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
916 }
917 }
918
919 return vk_outarray_status(&out);
920 }
921
922 static VkResult
923 wsi_display_surface_get_present_modes(VkIcdSurfaceBase *surface,
924 uint32_t *present_mode_count,
925 VkPresentModeKHR *present_modes)
926 {
927 VK_OUTARRAY_MAKE(conn, present_modes, present_mode_count);
928
929 vk_outarray_append(&conn, present) {
930 *present = VK_PRESENT_MODE_FIFO_KHR;
931 }
932
933 return vk_outarray_status(&conn);
934 }
935
936 static VkResult
937 wsi_display_surface_get_present_rectangles(VkIcdSurfaceBase *surface_base,
938 struct wsi_device *wsi_device,
939 uint32_t* pRectCount,
940 VkRect2D* pRects)
941 {
942 VkIcdSurfaceDisplay *surface = (VkIcdSurfaceDisplay *) surface_base;
943 wsi_display_mode *mode = wsi_display_mode_from_handle(surface->displayMode);
944 VK_OUTARRAY_MAKE(out, pRects, pRectCount);
945
946 if (wsi_device_matches_drm_fd(wsi_device, mode->connector->wsi->fd)) {
947 vk_outarray_append(&out, rect) {
948 *rect = (VkRect2D) {
949 .offset = { 0, 0 },
950 .extent = { mode->hdisplay, mode->vdisplay },
951 };
952 }
953 }
954
955 return vk_outarray_status(&out);
956 }
957
958 static void
959 wsi_display_destroy_buffer(struct wsi_display *wsi,
960 uint32_t buffer)
961 {
962 (void) drmIoctl(wsi->fd, DRM_IOCTL_MODE_DESTROY_DUMB,
963 &((struct drm_mode_destroy_dumb) { .handle = buffer }));
964 }
965
966 static VkResult
967 wsi_display_image_init(VkDevice device_h,
968 struct wsi_swapchain *drv_chain,
969 const VkSwapchainCreateInfoKHR *create_info,
970 const VkAllocationCallbacks *allocator,
971 struct wsi_display_image *image)
972 {
973 struct wsi_display_swapchain *chain =
974 (struct wsi_display_swapchain *) drv_chain;
975 struct wsi_display *wsi = chain->wsi;
976 uint32_t drm_format = 0;
977
978 for (unsigned i = 0; i < ARRAY_SIZE(available_surface_formats); i++) {
979 if (create_info->imageFormat == available_surface_formats[i].format) {
980 drm_format = available_surface_formats[i].drm_format;
981 break;
982 }
983 }
984
985 /* the application provided an invalid format, bail */
986 if (drm_format == 0)
987 return VK_ERROR_DEVICE_LOST;
988
989 VkResult result = wsi_create_native_image(&chain->base, create_info,
990 0, NULL, NULL,
991 &image->base);
992 if (result != VK_SUCCESS)
993 return result;
994
995 memset(image->buffer, 0, sizeof (image->buffer));
996
997 for (unsigned int i = 0; i < image->base.num_planes; i++) {
998 int ret = drmPrimeFDToHandle(wsi->fd, image->base.fds[i],
999 &image->buffer[i]);
1000
1001 close(image->base.fds[i]);
1002 image->base.fds[i] = -1;
1003 if (ret < 0)
1004 goto fail_handle;
1005 }
1006
1007 image->chain = chain;
1008 image->state = WSI_IMAGE_IDLE;
1009 image->fb_id = 0;
1010
1011 int ret = drmModeAddFB2(wsi->fd,
1012 create_info->imageExtent.width,
1013 create_info->imageExtent.height,
1014 drm_format,
1015 image->buffer,
1016 image->base.row_pitches,
1017 image->base.offsets,
1018 &image->fb_id, 0);
1019
1020 if (ret)
1021 goto fail_fb;
1022
1023 return VK_SUCCESS;
1024
1025 fail_fb:
1026 fail_handle:
1027 for (unsigned int i = 0; i < image->base.num_planes; i++) {
1028 if (image->buffer[i])
1029 wsi_display_destroy_buffer(wsi, image->buffer[i]);
1030 if (image->base.fds[i] != -1) {
1031 close(image->base.fds[i]);
1032 image->base.fds[i] = -1;
1033 }
1034 }
1035
1036 wsi_destroy_image(&chain->base, &image->base);
1037
1038 return VK_ERROR_OUT_OF_HOST_MEMORY;
1039 }
1040
1041 static void
1042 wsi_display_image_finish(struct wsi_swapchain *drv_chain,
1043 const VkAllocationCallbacks *allocator,
1044 struct wsi_display_image *image)
1045 {
1046 struct wsi_display_swapchain *chain =
1047 (struct wsi_display_swapchain *) drv_chain;
1048 struct wsi_display *wsi = chain->wsi;
1049
1050 drmModeRmFB(wsi->fd, image->fb_id);
1051 for (unsigned int i = 0; i < image->base.num_planes; i++)
1052 wsi_display_destroy_buffer(wsi, image->buffer[i]);
1053 wsi_destroy_image(&chain->base, &image->base);
1054 }
1055
1056 static VkResult
1057 wsi_display_swapchain_destroy(struct wsi_swapchain *drv_chain,
1058 const VkAllocationCallbacks *allocator)
1059 {
1060 struct wsi_display_swapchain *chain =
1061 (struct wsi_display_swapchain *) drv_chain;
1062
1063 for (uint32_t i = 0; i < chain->base.image_count; i++)
1064 wsi_display_image_finish(drv_chain, allocator, &chain->images[i]);
1065 vk_free(allocator, chain);
1066 return VK_SUCCESS;
1067 }
1068
1069 static struct wsi_image *
1070 wsi_display_get_wsi_image(struct wsi_swapchain *drv_chain,
1071 uint32_t image_index)
1072 {
1073 struct wsi_display_swapchain *chain =
1074 (struct wsi_display_swapchain *) drv_chain;
1075
1076 return &chain->images[image_index].base;
1077 }
1078
1079 static void
1080 wsi_display_idle_old_displaying(struct wsi_display_image *active_image)
1081 {
1082 struct wsi_display_swapchain *chain = active_image->chain;
1083
1084 wsi_display_debug("idle everyone but %ld\n",
1085 active_image - &(chain->images[0]));
1086 for (uint32_t i = 0; i < chain->base.image_count; i++)
1087 if (chain->images[i].state == WSI_IMAGE_DISPLAYING &&
1088 &chain->images[i] != active_image)
1089 {
1090 wsi_display_debug("idle %d\n", i);
1091 chain->images[i].state = WSI_IMAGE_IDLE;
1092 }
1093 }
1094
1095 static VkResult
1096 _wsi_display_queue_next(struct wsi_swapchain *drv_chain);
1097
1098 static void
1099 wsi_display_page_flip_handler2(int fd,
1100 unsigned int frame,
1101 unsigned int sec,
1102 unsigned int usec,
1103 uint32_t crtc_id,
1104 void *data)
1105 {
1106 struct wsi_display_image *image = data;
1107 struct wsi_display_swapchain *chain = image->chain;
1108
1109 wsi_display_debug("image %ld displayed at %d\n",
1110 image - &(image->chain->images[0]), frame);
1111 image->state = WSI_IMAGE_DISPLAYING;
1112 wsi_display_idle_old_displaying(image);
1113 VkResult result = _wsi_display_queue_next(&(chain->base));
1114 if (result != VK_SUCCESS)
1115 chain->status = result;
1116 }
1117
1118 static void wsi_display_fence_event_handler(struct wsi_display_fence *fence);
1119
1120 static void wsi_display_page_flip_handler(int fd,
1121 unsigned int frame,
1122 unsigned int sec,
1123 unsigned int usec,
1124 void *data)
1125 {
1126 wsi_display_page_flip_handler2(fd, frame, sec, usec, 0, data);
1127 }
1128
1129 static void wsi_display_vblank_handler(int fd, unsigned int frame,
1130 unsigned int sec, unsigned int usec,
1131 void *data)
1132 {
1133 struct wsi_display_fence *fence = data;
1134
1135 wsi_display_fence_event_handler(fence);
1136 }
1137
1138 static void wsi_display_sequence_handler(int fd, uint64_t frame,
1139 uint64_t nsec, uint64_t user_data)
1140 {
1141 struct wsi_display_fence *fence =
1142 (struct wsi_display_fence *) (uintptr_t) user_data;
1143
1144 wsi_display_fence_event_handler(fence);
1145 }
1146
1147 static drmEventContext event_context = {
1148 .version = DRM_EVENT_CONTEXT_VERSION,
1149 .page_flip_handler = wsi_display_page_flip_handler,
1150 #if DRM_EVENT_CONTEXT_VERSION >= 3
1151 .page_flip_handler2 = wsi_display_page_flip_handler2,
1152 #endif
1153 .vblank_handler = wsi_display_vblank_handler,
1154 .sequence_handler = wsi_display_sequence_handler,
1155 };
1156
1157 static void *
1158 wsi_display_wait_thread(void *data)
1159 {
1160 struct wsi_display *wsi = data;
1161 struct pollfd pollfd = {
1162 .fd = wsi->fd,
1163 .events = POLLIN
1164 };
1165
1166 pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
1167 for (;;) {
1168 int ret = poll(&pollfd, 1, -1);
1169 if (ret > 0) {
1170 pthread_mutex_lock(&wsi->wait_mutex);
1171 (void) drmHandleEvent(wsi->fd, &event_context);
1172 pthread_mutex_unlock(&wsi->wait_mutex);
1173 pthread_cond_broadcast(&wsi->wait_cond);
1174 }
1175 }
1176 return NULL;
1177 }
1178
1179 static int
1180 wsi_display_start_wait_thread(struct wsi_display *wsi)
1181 {
1182 if (!wsi->wait_thread) {
1183 int ret = pthread_create(&wsi->wait_thread, NULL,
1184 wsi_display_wait_thread, wsi);
1185 if (ret)
1186 return ret;
1187 }
1188 return 0;
1189 }
1190
1191 /*
1192 * Wait for at least one event from the kernel to be processed.
1193 * Call with wait_mutex held
1194 */
1195 static int
1196 wsi_display_wait_for_event(struct wsi_display *wsi,
1197 uint64_t timeout_ns)
1198 {
1199 int ret;
1200
1201 ret = wsi_display_start_wait_thread(wsi);
1202
1203 if (ret)
1204 return ret;
1205
1206 struct timespec abs_timeout = {
1207 .tv_sec = timeout_ns / 1000000000ULL,
1208 .tv_nsec = timeout_ns % 1000000000ULL,
1209 };
1210
1211 ret = pthread_cond_timedwait(&wsi->wait_cond, &wsi->wait_mutex,
1212 &abs_timeout);
1213
1214 wsi_display_debug("%9ld done waiting for event %d\n", pthread_self(), ret);
1215 return ret;
1216 }
1217
1218 static VkResult
1219 wsi_display_acquire_next_image(struct wsi_swapchain *drv_chain,
1220 const VkAcquireNextImageInfoKHR *info,
1221 uint32_t *image_index)
1222 {
1223 struct wsi_display_swapchain *chain =
1224 (struct wsi_display_swapchain *)drv_chain;
1225 struct wsi_display *wsi = chain->wsi;
1226 int ret = 0;
1227 VkResult result = VK_SUCCESS;
1228
1229 /* Bail early if the swapchain is broken */
1230 if (chain->status != VK_SUCCESS)
1231 return chain->status;
1232
1233 uint64_t timeout = info->timeout;
1234 if (timeout != 0 && timeout != UINT64_MAX)
1235 timeout = wsi_rel_to_abs_time(timeout);
1236
1237 pthread_mutex_lock(&wsi->wait_mutex);
1238 for (;;) {
1239 for (uint32_t i = 0; i < chain->base.image_count; i++) {
1240 if (chain->images[i].state == WSI_IMAGE_IDLE) {
1241 *image_index = i;
1242 wsi_display_debug("image %d available\n", i);
1243 chain->images[i].state = WSI_IMAGE_DRAWING;
1244 result = VK_SUCCESS;
1245 goto done;
1246 }
1247 wsi_display_debug("image %d state %d\n", i, chain->images[i].state);
1248 }
1249
1250 if (ret == ETIMEDOUT) {
1251 result = VK_TIMEOUT;
1252 goto done;
1253 }
1254
1255 ret = wsi_display_wait_for_event(wsi, timeout);
1256
1257 if (ret && ret != ETIMEDOUT) {
1258 result = VK_ERROR_SURFACE_LOST_KHR;
1259 goto done;
1260 }
1261 }
1262 done:
1263 pthread_mutex_unlock(&wsi->wait_mutex);
1264
1265 if (result != VK_SUCCESS)
1266 return result;
1267
1268 return chain->status;
1269 }
1270
1271 /*
1272 * Check whether there are any other connectors driven by this crtc
1273 */
1274 static bool
1275 wsi_display_crtc_solo(struct wsi_display *wsi,
1276 drmModeResPtr mode_res,
1277 drmModeConnectorPtr connector,
1278 uint32_t crtc_id)
1279 {
1280 /* See if any other connectors share the same encoder */
1281 for (int c = 0; c < mode_res->count_connectors; c++) {
1282 if (mode_res->connectors[c] == connector->connector_id)
1283 continue;
1284
1285 drmModeConnectorPtr other_connector =
1286 drmModeGetConnector(wsi->fd, mode_res->connectors[c]);
1287
1288 if (other_connector) {
1289 bool match = (other_connector->encoder_id == connector->encoder_id);
1290 drmModeFreeConnector(other_connector);
1291 if (match)
1292 return false;
1293 }
1294 }
1295
1296 /* See if any other encoders share the same crtc */
1297 for (int e = 0; e < mode_res->count_encoders; e++) {
1298 if (mode_res->encoders[e] == connector->encoder_id)
1299 continue;
1300
1301 drmModeEncoderPtr other_encoder =
1302 drmModeGetEncoder(wsi->fd, mode_res->encoders[e]);
1303
1304 if (other_encoder) {
1305 bool match = (other_encoder->crtc_id == crtc_id);
1306 drmModeFreeEncoder(other_encoder);
1307 if (match)
1308 return false;
1309 }
1310 }
1311 return true;
1312 }
1313
1314 /*
1315 * Pick a suitable CRTC to drive this connector. Prefer a CRTC which is
1316 * currently driving this connector and not any others. Settle for a CRTC
1317 * which is currently idle.
1318 */
1319 static uint32_t
1320 wsi_display_select_crtc(const struct wsi_display_connector *connector,
1321 drmModeResPtr mode_res,
1322 drmModeConnectorPtr drm_connector)
1323 {
1324 struct wsi_display *wsi = connector->wsi;
1325
1326 /* See what CRTC is currently driving this connector */
1327 if (drm_connector->encoder_id) {
1328 drmModeEncoderPtr encoder =
1329 drmModeGetEncoder(wsi->fd, drm_connector->encoder_id);
1330
1331 if (encoder) {
1332 uint32_t crtc_id = encoder->crtc_id;
1333 drmModeFreeEncoder(encoder);
1334 if (crtc_id) {
1335 if (wsi_display_crtc_solo(wsi, mode_res, drm_connector, crtc_id))
1336 return crtc_id;
1337 }
1338 }
1339 }
1340 uint32_t crtc_id = 0;
1341 for (int c = 0; crtc_id == 0 && c < mode_res->count_crtcs; c++) {
1342 drmModeCrtcPtr crtc = drmModeGetCrtc(wsi->fd, mode_res->crtcs[c]);
1343 if (crtc && crtc->buffer_id == 0)
1344 crtc_id = crtc->crtc_id;
1345 drmModeFreeCrtc(crtc);
1346 }
1347 return crtc_id;
1348 }
1349
1350 static VkResult
1351 wsi_display_setup_connector(wsi_display_connector *connector,
1352 wsi_display_mode *display_mode)
1353 {
1354 struct wsi_display *wsi = connector->wsi;
1355
1356 if (connector->current_mode == display_mode && connector->crtc_id)
1357 return VK_SUCCESS;
1358
1359 VkResult result = VK_SUCCESS;
1360
1361 drmModeResPtr mode_res = drmModeGetResources(wsi->fd);
1362 if (!mode_res) {
1363 if (errno == ENOMEM)
1364 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1365 else
1366 result = VK_ERROR_SURFACE_LOST_KHR;
1367 goto bail;
1368 }
1369
1370 drmModeConnectorPtr drm_connector =
1371 drmModeGetConnectorCurrent(wsi->fd, connector->id);
1372
1373 if (!drm_connector) {
1374 if (errno == ENOMEM)
1375 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1376 else
1377 result = VK_ERROR_SURFACE_LOST_KHR;
1378 goto bail_mode_res;
1379 }
1380
1381 /* Pick a CRTC if we don't have one */
1382 if (!connector->crtc_id) {
1383 connector->crtc_id = wsi_display_select_crtc(connector,
1384 mode_res, drm_connector);
1385 if (!connector->crtc_id) {
1386 result = VK_ERROR_SURFACE_LOST_KHR;
1387 goto bail_connector;
1388 }
1389 }
1390
1391 if (connector->current_mode != display_mode) {
1392
1393 /* Find the drm mode corresponding to the requested VkDisplayMode */
1394 drmModeModeInfoPtr drm_mode = NULL;
1395
1396 for (int m = 0; m < drm_connector->count_modes; m++) {
1397 drm_mode = &drm_connector->modes[m];
1398 if (wsi_display_mode_matches_drm(display_mode, drm_mode))
1399 break;
1400 drm_mode = NULL;
1401 }
1402
1403 if (!drm_mode) {
1404 result = VK_ERROR_SURFACE_LOST_KHR;
1405 goto bail_connector;
1406 }
1407
1408 connector->current_mode = display_mode;
1409 connector->current_drm_mode = *drm_mode;
1410 }
1411
1412 bail_connector:
1413 drmModeFreeConnector(drm_connector);
1414 bail_mode_res:
1415 drmModeFreeResources(mode_res);
1416 bail:
1417 return result;
1418
1419 }
1420
1421 static VkResult
1422 wsi_display_fence_wait(struct wsi_fence *fence_wsi, uint64_t timeout)
1423 {
1424 const struct wsi_device *wsi_device = fence_wsi->wsi_device;
1425 struct wsi_display *wsi =
1426 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1427 struct wsi_display_fence *fence = (struct wsi_display_fence *) fence_wsi;
1428
1429 wsi_display_debug("%9lu wait fence %lu %ld\n",
1430 pthread_self(), fence->sequence,
1431 (int64_t) (timeout - wsi_get_current_monotonic()));
1432 wsi_display_debug_code(uint64_t start_ns = wsi_get_current_monotonic());
1433 pthread_mutex_lock(&wsi->wait_mutex);
1434
1435 VkResult result;
1436 int ret = 0;
1437 for (;;) {
1438 if (fence->event_received) {
1439 wsi_display_debug("%9lu fence %lu passed\n",
1440 pthread_self(), fence->sequence);
1441 result = VK_SUCCESS;
1442 break;
1443 }
1444
1445 if (ret == ETIMEDOUT) {
1446 wsi_display_debug("%9lu fence %lu timeout\n",
1447 pthread_self(), fence->sequence);
1448 result = VK_TIMEOUT;
1449 break;
1450 }
1451
1452 ret = wsi_display_wait_for_event(wsi, timeout);
1453
1454 if (ret && ret != ETIMEDOUT) {
1455 wsi_display_debug("%9lu fence %lu error\n",
1456 pthread_self(), fence->sequence);
1457 result = VK_ERROR_DEVICE_LOST;
1458 break;
1459 }
1460 }
1461 pthread_mutex_unlock(&wsi->wait_mutex);
1462 wsi_display_debug("%9lu fence wait %f ms\n",
1463 pthread_self(),
1464 ((int64_t) (wsi_get_current_monotonic() - start_ns)) /
1465 1.0e6);
1466 return result;
1467 }
1468
1469 static void
1470 wsi_display_fence_check_free(struct wsi_display_fence *fence)
1471 {
1472 if (fence->event_received && fence->destroyed)
1473 vk_free(fence->base.alloc, fence);
1474 }
1475
1476 static void wsi_display_fence_event_handler(struct wsi_display_fence *fence)
1477 {
1478 fence->event_received = true;
1479 wsi_display_fence_check_free(fence);
1480 }
1481
1482 static void
1483 wsi_display_fence_destroy(struct wsi_fence *fence_wsi)
1484 {
1485 struct wsi_display_fence *fence = (struct wsi_display_fence *) fence_wsi;
1486
1487 assert(!fence->destroyed);
1488 fence->destroyed = true;
1489 wsi_display_fence_check_free(fence);
1490 }
1491
1492 static struct wsi_display_fence *
1493 wsi_display_fence_alloc(VkDevice device,
1494 const struct wsi_device *wsi_device,
1495 VkDisplayKHR display,
1496 const VkAllocationCallbacks *allocator)
1497 {
1498 struct wsi_display *wsi =
1499 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1500 struct wsi_display_fence *fence =
1501 vk_zalloc2(wsi->alloc, allocator, sizeof (*fence),
1502 8, VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
1503
1504 if (!fence)
1505 return NULL;
1506
1507 fence->base.device = device;
1508 fence->base.display = display;
1509 fence->base.wsi_device = wsi_device;
1510 fence->base.alloc = allocator ? allocator : wsi->alloc;
1511 fence->base.wait = wsi_display_fence_wait;
1512 fence->base.destroy = wsi_display_fence_destroy;
1513 fence->event_received = false;
1514 fence->destroyed = false;
1515 fence->sequence = ++fence_sequence;
1516 return fence;
1517 }
1518
1519 static VkResult
1520 wsi_register_vblank_event(struct wsi_display_fence *fence,
1521 const struct wsi_device *wsi_device,
1522 VkDisplayKHR display,
1523 uint32_t flags,
1524 uint64_t frame_requested,
1525 uint64_t *frame_queued)
1526 {
1527 struct wsi_display *wsi =
1528 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1529 struct wsi_display_connector *connector =
1530 wsi_display_connector_from_handle(display);
1531
1532 if (wsi->fd < 0)
1533 return VK_ERROR_INITIALIZATION_FAILED;
1534
1535 for (;;) {
1536 int ret = drmCrtcQueueSequence(wsi->fd, connector->crtc_id,
1537 flags,
1538 frame_requested,
1539 frame_queued,
1540 (uintptr_t) fence);
1541
1542 if (!ret)
1543 return VK_SUCCESS;
1544
1545 if (errno != ENOMEM) {
1546
1547 /* Something unexpected happened. Pause for a moment so the
1548 * application doesn't just spin and then return a failure indication
1549 */
1550
1551 wsi_display_debug("queue vblank event %lu failed\n", fence->sequence);
1552 struct timespec delay = {
1553 .tv_sec = 0,
1554 .tv_nsec = 100000000ull,
1555 };
1556 nanosleep(&delay, NULL);
1557 return VK_ERROR_OUT_OF_HOST_MEMORY;
1558 }
1559
1560 /* The kernel event queue is full. Wait for some events to be
1561 * processed and try again
1562 */
1563
1564 pthread_mutex_lock(&wsi->wait_mutex);
1565 ret = wsi_display_wait_for_event(wsi, wsi_rel_to_abs_time(100000000ull));
1566 pthread_mutex_unlock(&wsi->wait_mutex);
1567
1568 if (ret) {
1569 wsi_display_debug("vblank queue full, event wait failed\n");
1570 return VK_ERROR_OUT_OF_HOST_MEMORY;
1571 }
1572 }
1573 }
1574
1575 /*
1576 * Check to see if the kernel has no flip queued and if there's an image
1577 * waiting to be displayed.
1578 */
1579 static VkResult
1580 _wsi_display_queue_next(struct wsi_swapchain *drv_chain)
1581 {
1582 struct wsi_display_swapchain *chain =
1583 (struct wsi_display_swapchain *) drv_chain;
1584 struct wsi_display *wsi = chain->wsi;
1585 VkIcdSurfaceDisplay *surface = chain->surface;
1586 wsi_display_mode *display_mode =
1587 wsi_display_mode_from_handle(surface->displayMode);
1588 wsi_display_connector *connector = display_mode->connector;
1589
1590 if (wsi->fd < 0)
1591 return VK_ERROR_SURFACE_LOST_KHR;
1592
1593 if (display_mode != connector->current_mode)
1594 connector->active = false;
1595
1596 for (;;) {
1597
1598 /* Check to see if there is an image to display, or if some image is
1599 * already queued */
1600
1601 struct wsi_display_image *image = NULL;
1602
1603 for (uint32_t i = 0; i < chain->base.image_count; i++) {
1604 struct wsi_display_image *tmp_image = &chain->images[i];
1605
1606 switch (tmp_image->state) {
1607 case WSI_IMAGE_FLIPPING:
1608 /* already flipping, don't send another to the kernel yet */
1609 return VK_SUCCESS;
1610 case WSI_IMAGE_QUEUED:
1611 /* find the oldest queued */
1612 if (!image || tmp_image->flip_sequence < image->flip_sequence)
1613 image = tmp_image;
1614 break;
1615 default:
1616 break;
1617 }
1618 }
1619
1620 if (!image)
1621 return VK_SUCCESS;
1622
1623 int ret;
1624 if (connector->active) {
1625 ret = drmModePageFlip(wsi->fd, connector->crtc_id, image->fb_id,
1626 DRM_MODE_PAGE_FLIP_EVENT, image);
1627 if (ret == 0) {
1628 image->state = WSI_IMAGE_FLIPPING;
1629 return VK_SUCCESS;
1630 }
1631 wsi_display_debug("page flip err %d %s\n", ret, strerror(-ret));
1632 } else {
1633 ret = -EINVAL;
1634 }
1635
1636 if (ret == -EINVAL) {
1637 VkResult result = wsi_display_setup_connector(connector, display_mode);
1638
1639 if (result != VK_SUCCESS) {
1640 image->state = WSI_IMAGE_IDLE;
1641 return result;
1642 }
1643
1644 /* XXX allow setting of position */
1645 ret = drmModeSetCrtc(wsi->fd, connector->crtc_id,
1646 image->fb_id, 0, 0,
1647 &connector->id, 1,
1648 &connector->current_drm_mode);
1649 if (ret == 0) {
1650 /* Assume that the mode set is synchronous and that any
1651 * previous image is now idle.
1652 */
1653 image->state = WSI_IMAGE_DISPLAYING;
1654 wsi_display_idle_old_displaying(image);
1655 connector->active = true;
1656 return VK_SUCCESS;
1657 }
1658 }
1659
1660 if (ret != -EACCES) {
1661 connector->active = false;
1662 image->state = WSI_IMAGE_IDLE;
1663 return VK_ERROR_SURFACE_LOST_KHR;
1664 }
1665
1666 /* Some other VT is currently active. Sit here waiting for
1667 * our VT to become active again by polling once a second
1668 */
1669 usleep(1000 * 1000);
1670 connector->active = false;
1671 }
1672 }
1673
1674 static VkResult
1675 wsi_display_queue_present(struct wsi_swapchain *drv_chain,
1676 uint32_t image_index,
1677 const VkPresentRegionKHR *damage)
1678 {
1679 struct wsi_display_swapchain *chain =
1680 (struct wsi_display_swapchain *) drv_chain;
1681 struct wsi_display *wsi = chain->wsi;
1682 struct wsi_display_image *image = &chain->images[image_index];
1683 VkResult result;
1684
1685 /* Bail early if the swapchain is broken */
1686 if (chain->status != VK_SUCCESS)
1687 return chain->status;
1688
1689 assert(image->state == WSI_IMAGE_DRAWING);
1690 wsi_display_debug("present %d\n", image_index);
1691
1692 pthread_mutex_lock(&wsi->wait_mutex);
1693
1694 image->flip_sequence = ++chain->flip_sequence;
1695 image->state = WSI_IMAGE_QUEUED;
1696
1697 result = _wsi_display_queue_next(drv_chain);
1698 if (result != VK_SUCCESS)
1699 chain->status = result;
1700
1701 pthread_mutex_unlock(&wsi->wait_mutex);
1702
1703 if (result != VK_SUCCESS)
1704 return result;
1705
1706 return chain->status;
1707 }
1708
1709 static VkResult
1710 wsi_display_surface_create_swapchain(
1711 VkIcdSurfaceBase *icd_surface,
1712 VkDevice device,
1713 struct wsi_device *wsi_device,
1714 const VkSwapchainCreateInfoKHR *create_info,
1715 const VkAllocationCallbacks *allocator,
1716 struct wsi_swapchain **swapchain_out)
1717 {
1718 struct wsi_display *wsi =
1719 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1720
1721 assert(create_info->sType == VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR);
1722
1723 const unsigned num_images = create_info->minImageCount;
1724 struct wsi_display_swapchain *chain =
1725 vk_zalloc(allocator,
1726 sizeof(*chain) + num_images * sizeof(chain->images[0]),
1727 8, VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
1728
1729 if (chain == NULL)
1730 return VK_ERROR_OUT_OF_HOST_MEMORY;
1731
1732 VkResult result = wsi_swapchain_init(wsi_device, &chain->base, device,
1733 create_info, allocator);
1734 if (result != VK_SUCCESS) {
1735 vk_free(allocator, chain);
1736 return result;
1737 }
1738
1739 chain->base.destroy = wsi_display_swapchain_destroy;
1740 chain->base.get_wsi_image = wsi_display_get_wsi_image;
1741 chain->base.acquire_next_image = wsi_display_acquire_next_image;
1742 chain->base.queue_present = wsi_display_queue_present;
1743 chain->base.present_mode = create_info->presentMode;
1744 chain->base.image_count = num_images;
1745
1746 chain->wsi = wsi;
1747 chain->status = VK_SUCCESS;
1748
1749 chain->surface = (VkIcdSurfaceDisplay *) icd_surface;
1750
1751 for (uint32_t image = 0; image < chain->base.image_count; image++) {
1752 result = wsi_display_image_init(device, &chain->base,
1753 create_info, allocator,
1754 &chain->images[image]);
1755 if (result != VK_SUCCESS) {
1756 while (image > 0) {
1757 --image;
1758 wsi_display_image_finish(&chain->base, allocator,
1759 &chain->images[image]);
1760 }
1761 vk_free(allocator, chain);
1762 goto fail_init_images;
1763 }
1764 }
1765
1766 *swapchain_out = &chain->base;
1767
1768 return VK_SUCCESS;
1769
1770 fail_init_images:
1771 return result;
1772 }
1773
1774 static bool
1775 wsi_init_pthread_cond_monotonic(pthread_cond_t *cond)
1776 {
1777 pthread_condattr_t condattr;
1778 bool ret = false;
1779
1780 if (pthread_condattr_init(&condattr) != 0)
1781 goto fail_attr_init;
1782
1783 if (pthread_condattr_setclock(&condattr, CLOCK_MONOTONIC) != 0)
1784 goto fail_attr_set;
1785
1786 if (pthread_cond_init(cond, &condattr) != 0)
1787 goto fail_cond_init;
1788
1789 ret = true;
1790
1791 fail_cond_init:
1792 fail_attr_set:
1793 pthread_condattr_destroy(&condattr);
1794 fail_attr_init:
1795 return ret;
1796 }
1797
1798 VkResult
1799 wsi_display_init_wsi(struct wsi_device *wsi_device,
1800 const VkAllocationCallbacks *alloc,
1801 int display_fd)
1802 {
1803 struct wsi_display *wsi = vk_zalloc(alloc, sizeof(*wsi), 8,
1804 VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
1805 VkResult result;
1806
1807 if (!wsi) {
1808 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1809 goto fail;
1810 }
1811
1812 wsi->fd = display_fd;
1813 wsi->alloc = alloc;
1814
1815 list_inithead(&wsi->connectors);
1816
1817 int ret = pthread_mutex_init(&wsi->wait_mutex, NULL);
1818 if (ret) {
1819 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1820 goto fail_mutex;
1821 }
1822
1823 if (!wsi_init_pthread_cond_monotonic(&wsi->wait_cond)) {
1824 result = VK_ERROR_OUT_OF_HOST_MEMORY;
1825 goto fail_cond;
1826 }
1827
1828 wsi->base.get_support = wsi_display_surface_get_support;
1829 wsi->base.get_capabilities2 = wsi_display_surface_get_capabilities2;
1830 wsi->base.get_formats = wsi_display_surface_get_formats;
1831 wsi->base.get_formats2 = wsi_display_surface_get_formats2;
1832 wsi->base.get_present_modes = wsi_display_surface_get_present_modes;
1833 wsi->base.get_present_rectangles = wsi_display_surface_get_present_rectangles;
1834 wsi->base.create_swapchain = wsi_display_surface_create_swapchain;
1835
1836 wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY] = &wsi->base;
1837
1838 return VK_SUCCESS;
1839
1840 fail_cond:
1841 pthread_mutex_destroy(&wsi->wait_mutex);
1842 fail_mutex:
1843 vk_free(alloc, wsi);
1844 fail:
1845 return result;
1846 }
1847
1848 void
1849 wsi_display_finish_wsi(struct wsi_device *wsi_device,
1850 const VkAllocationCallbacks *alloc)
1851 {
1852 struct wsi_display *wsi =
1853 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1854
1855 if (wsi) {
1856 wsi_for_each_connector(connector, wsi) {
1857 wsi_for_each_display_mode(mode, connector) {
1858 vk_free(wsi->alloc, mode);
1859 }
1860 vk_free(wsi->alloc, connector);
1861 }
1862
1863 pthread_mutex_lock(&wsi->wait_mutex);
1864 if (wsi->wait_thread) {
1865 pthread_cancel(wsi->wait_thread);
1866 pthread_join(wsi->wait_thread, NULL);
1867 }
1868 pthread_mutex_unlock(&wsi->wait_mutex);
1869 pthread_mutex_destroy(&wsi->wait_mutex);
1870 pthread_cond_destroy(&wsi->wait_cond);
1871
1872 vk_free(alloc, wsi);
1873 }
1874 }
1875
1876 /*
1877 * Implement vkReleaseDisplay
1878 */
1879 VkResult
1880 wsi_release_display(VkPhysicalDevice physical_device,
1881 struct wsi_device *wsi_device,
1882 VkDisplayKHR display)
1883 {
1884 struct wsi_display *wsi =
1885 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1886
1887 if (wsi->fd >= 0) {
1888 close(wsi->fd);
1889 wsi->fd = -1;
1890 }
1891 #ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
1892 wsi_display_connector_from_handle(display)->output = None;
1893 #endif
1894
1895 return VK_SUCCESS;
1896 }
1897
1898 #ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
1899
1900 static struct wsi_display_connector *
1901 wsi_display_find_output(struct wsi_device *wsi_device,
1902 xcb_randr_output_t output)
1903 {
1904 struct wsi_display *wsi =
1905 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
1906
1907 wsi_for_each_connector(connector, wsi) {
1908 if (connector->output == output)
1909 return connector;
1910 }
1911
1912 return NULL;
1913 }
1914
1915 /*
1916 * Given a RandR output, find the associated kernel connector_id by
1917 * looking at the CONNECTOR_ID property provided by the X server
1918 */
1919
1920 static uint32_t
1921 wsi_display_output_to_connector_id(xcb_connection_t *connection,
1922 xcb_atom_t *connector_id_atom_p,
1923 xcb_randr_output_t output)
1924 {
1925 uint32_t connector_id = 0;
1926 xcb_atom_t connector_id_atom = *connector_id_atom_p;
1927
1928 if (connector_id_atom == 0) {
1929 /* Go dig out the CONNECTOR_ID property */
1930 xcb_intern_atom_cookie_t ia_c = xcb_intern_atom(connection,
1931 true,
1932 12,
1933 "CONNECTOR_ID");
1934 xcb_intern_atom_reply_t *ia_r = xcb_intern_atom_reply(connection,
1935 ia_c,
1936 NULL);
1937 if (ia_r) {
1938 *connector_id_atom_p = connector_id_atom = ia_r->atom;
1939 free(ia_r);
1940 }
1941 }
1942
1943 /* If there's an CONNECTOR_ID atom in the server, then there may be a
1944 * CONNECTOR_ID property. Otherwise, there will not be and we don't even
1945 * need to bother.
1946 */
1947 if (connector_id_atom) {
1948
1949 xcb_randr_query_version_cookie_t qv_c =
1950 xcb_randr_query_version(connection, 1, 6);
1951 xcb_randr_get_output_property_cookie_t gop_c =
1952 xcb_randr_get_output_property(connection,
1953 output,
1954 connector_id_atom,
1955 0,
1956 0,
1957 0xffffffffUL,
1958 0,
1959 0);
1960 xcb_randr_query_version_reply_t *qv_r =
1961 xcb_randr_query_version_reply(connection, qv_c, NULL);
1962 free(qv_r);
1963 xcb_randr_get_output_property_reply_t *gop_r =
1964 xcb_randr_get_output_property_reply(connection, gop_c, NULL);
1965 if (gop_r) {
1966 if (gop_r->num_items == 1 && gop_r->format == 32)
1967 memcpy(&connector_id, xcb_randr_get_output_property_data(gop_r), 4);
1968 free(gop_r);
1969 }
1970 }
1971 return connector_id;
1972 }
1973
1974 static bool
1975 wsi_display_check_randr_version(xcb_connection_t *connection)
1976 {
1977 xcb_randr_query_version_cookie_t qv_c =
1978 xcb_randr_query_version(connection, 1, 6);
1979 xcb_randr_query_version_reply_t *qv_r =
1980 xcb_randr_query_version_reply(connection, qv_c, NULL);
1981 bool ret = false;
1982
1983 if (!qv_r)
1984 return false;
1985
1986 /* Check for version 1.6 or newer */
1987 ret = (qv_r->major_version > 1 ||
1988 (qv_r->major_version == 1 && qv_r->minor_version >= 6));
1989
1990 free(qv_r);
1991 return ret;
1992 }
1993
1994 /*
1995 * Given a kernel connector id, find the associated RandR output using the
1996 * CONNECTOR_ID property
1997 */
1998
1999 static xcb_randr_output_t
2000 wsi_display_connector_id_to_output(xcb_connection_t *connection,
2001 uint32_t connector_id)
2002 {
2003 if (!wsi_display_check_randr_version(connection))
2004 return 0;
2005
2006 const xcb_setup_t *setup = xcb_get_setup(connection);
2007
2008 xcb_atom_t connector_id_atom = 0;
2009 xcb_randr_output_t output = 0;
2010
2011 /* Search all of the screens for the provided output */
2012 xcb_screen_iterator_t iter;
2013 for (iter = xcb_setup_roots_iterator(setup);
2014 output == 0 && iter.rem;
2015 xcb_screen_next(&iter))
2016 {
2017 xcb_randr_get_screen_resources_cookie_t gsr_c =
2018 xcb_randr_get_screen_resources(connection, iter.data->root);
2019 xcb_randr_get_screen_resources_reply_t *gsr_r =
2020 xcb_randr_get_screen_resources_reply(connection, gsr_c, NULL);
2021
2022 if (!gsr_r)
2023 return 0;
2024
2025 xcb_randr_output_t *ro = xcb_randr_get_screen_resources_outputs(gsr_r);
2026 int o;
2027
2028 for (o = 0; o < gsr_r->num_outputs; o++) {
2029 if (wsi_display_output_to_connector_id(connection,
2030 &connector_id_atom, ro[o])
2031 == connector_id)
2032 {
2033 output = ro[o];
2034 break;
2035 }
2036 }
2037 free(gsr_r);
2038 }
2039 return output;
2040 }
2041
2042 /*
2043 * Given a RandR output, find out which screen it's associated with
2044 */
2045 static xcb_window_t
2046 wsi_display_output_to_root(xcb_connection_t *connection,
2047 xcb_randr_output_t output)
2048 {
2049 if (!wsi_display_check_randr_version(connection))
2050 return 0;
2051
2052 const xcb_setup_t *setup = xcb_get_setup(connection);
2053 xcb_window_t root = 0;
2054
2055 /* Search all of the screens for the provided output */
2056 for (xcb_screen_iterator_t iter = xcb_setup_roots_iterator(setup);
2057 root == 0 && iter.rem;
2058 xcb_screen_next(&iter))
2059 {
2060 xcb_randr_get_screen_resources_cookie_t gsr_c =
2061 xcb_randr_get_screen_resources(connection, iter.data->root);
2062 xcb_randr_get_screen_resources_reply_t *gsr_r =
2063 xcb_randr_get_screen_resources_reply(connection, gsr_c, NULL);
2064
2065 if (!gsr_r)
2066 return 0;
2067
2068 xcb_randr_output_t *ro = xcb_randr_get_screen_resources_outputs(gsr_r);
2069
2070 for (int o = 0; o < gsr_r->num_outputs; o++) {
2071 if (ro[o] == output) {
2072 root = iter.data->root;
2073 break;
2074 }
2075 }
2076 free(gsr_r);
2077 }
2078 return root;
2079 }
2080
2081 static bool
2082 wsi_display_mode_matches_x(struct wsi_display_mode *wsi,
2083 xcb_randr_mode_info_t *xcb)
2084 {
2085 return wsi->clock == (xcb->dot_clock + 500) / 1000 &&
2086 wsi->hdisplay == xcb->width &&
2087 wsi->hsync_start == xcb->hsync_start &&
2088 wsi->hsync_end == xcb->hsync_end &&
2089 wsi->htotal == xcb->htotal &&
2090 wsi->hskew == xcb->hskew &&
2091 wsi->vdisplay == xcb->height &&
2092 wsi->vsync_start == xcb->vsync_start &&
2093 wsi->vsync_end == xcb->vsync_end &&
2094 wsi->vtotal == xcb->vtotal &&
2095 wsi->vscan <= 1 &&
2096 wsi->flags == xcb->mode_flags;
2097 }
2098
2099 static struct wsi_display_mode *
2100 wsi_display_find_x_mode(struct wsi_device *wsi_device,
2101 struct wsi_display_connector *connector,
2102 xcb_randr_mode_info_t *mode)
2103 {
2104 wsi_for_each_display_mode(display_mode, connector) {
2105 if (wsi_display_mode_matches_x(display_mode, mode))
2106 return display_mode;
2107 }
2108 return NULL;
2109 }
2110
2111 static VkResult
2112 wsi_display_register_x_mode(struct wsi_device *wsi_device,
2113 struct wsi_display_connector *connector,
2114 xcb_randr_mode_info_t *x_mode,
2115 bool preferred)
2116 {
2117 struct wsi_display *wsi =
2118 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2119 struct wsi_display_mode *display_mode =
2120 wsi_display_find_x_mode(wsi_device, connector, x_mode);
2121
2122 if (display_mode) {
2123 display_mode->valid = true;
2124 return VK_SUCCESS;
2125 }
2126
2127 display_mode = vk_zalloc(wsi->alloc, sizeof (struct wsi_display_mode),
2128 8, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
2129 if (!display_mode)
2130 return VK_ERROR_OUT_OF_HOST_MEMORY;
2131
2132 display_mode->connector = connector;
2133 display_mode->valid = true;
2134 display_mode->preferred = preferred;
2135 display_mode->clock = (x_mode->dot_clock + 500) / 1000; /* kHz */
2136 display_mode->hdisplay = x_mode->width;
2137 display_mode->hsync_start = x_mode->hsync_start;
2138 display_mode->hsync_end = x_mode->hsync_end;
2139 display_mode->htotal = x_mode->htotal;
2140 display_mode->hskew = x_mode->hskew;
2141 display_mode->vdisplay = x_mode->height;
2142 display_mode->vsync_start = x_mode->vsync_start;
2143 display_mode->vsync_end = x_mode->vsync_end;
2144 display_mode->vtotal = x_mode->vtotal;
2145 display_mode->vscan = 0;
2146 display_mode->flags = x_mode->mode_flags;
2147
2148 list_addtail(&display_mode->list, &connector->display_modes);
2149 return VK_SUCCESS;
2150 }
2151
2152 static struct wsi_display_connector *
2153 wsi_display_get_output(struct wsi_device *wsi_device,
2154 xcb_connection_t *connection,
2155 xcb_randr_output_t output)
2156 {
2157 struct wsi_display *wsi =
2158 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2159 struct wsi_display_connector *connector;
2160 uint32_t connector_id;
2161
2162 xcb_window_t root = wsi_display_output_to_root(connection, output);
2163 if (!root)
2164 return NULL;
2165
2166 /* See if we already have a connector for this output */
2167 connector = wsi_display_find_output(wsi_device, output);
2168
2169 if (!connector) {
2170 xcb_atom_t connector_id_atom = 0;
2171
2172 /*
2173 * Go get the kernel connector ID for this X output
2174 */
2175 connector_id = wsi_display_output_to_connector_id(connection,
2176 &connector_id_atom,
2177 output);
2178
2179 /* Any X server with lease support will have this atom */
2180 if (!connector_id) {
2181 return NULL;
2182 }
2183
2184 /* See if we already have a connector for this id */
2185 connector = wsi_display_find_connector(wsi_device, connector_id);
2186
2187 if (connector == NULL) {
2188 connector = wsi_display_alloc_connector(wsi, connector_id);
2189 if (!connector) {
2190 return NULL;
2191 }
2192 list_addtail(&connector->list, &wsi->connectors);
2193 }
2194 connector->output = output;
2195 }
2196
2197 xcb_randr_get_screen_resources_cookie_t src =
2198 xcb_randr_get_screen_resources(connection, root);
2199 xcb_randr_get_output_info_cookie_t oic =
2200 xcb_randr_get_output_info(connection, output, XCB_CURRENT_TIME);
2201 xcb_randr_get_screen_resources_reply_t *srr =
2202 xcb_randr_get_screen_resources_reply(connection, src, NULL);
2203 xcb_randr_get_output_info_reply_t *oir =
2204 xcb_randr_get_output_info_reply(connection, oic, NULL);
2205
2206 if (oir && srr) {
2207 /* Get X modes and add them */
2208
2209 connector->connected =
2210 oir->connection != XCB_RANDR_CONNECTION_DISCONNECTED;
2211
2212 wsi_display_invalidate_connector_modes(wsi_device, connector);
2213
2214 xcb_randr_mode_t *x_modes = xcb_randr_get_output_info_modes(oir);
2215 for (int m = 0; m < oir->num_modes; m++) {
2216 xcb_randr_mode_info_iterator_t i =
2217 xcb_randr_get_screen_resources_modes_iterator(srr);
2218 while (i.rem) {
2219 xcb_randr_mode_info_t *mi = i.data;
2220 if (mi->id == x_modes[m]) {
2221 VkResult result = wsi_display_register_x_mode(
2222 wsi_device, connector, mi, m < oir->num_preferred);
2223 if (result != VK_SUCCESS) {
2224 free(oir);
2225 free(srr);
2226 return NULL;
2227 }
2228 break;
2229 }
2230 xcb_randr_mode_info_next(&i);
2231 }
2232 }
2233 }
2234
2235 free(oir);
2236 free(srr);
2237 return connector;
2238 }
2239
2240 static xcb_randr_crtc_t
2241 wsi_display_find_crtc_for_output(xcb_connection_t *connection,
2242 xcb_window_t root,
2243 xcb_randr_output_t output)
2244 {
2245 xcb_randr_get_screen_resources_cookie_t gsr_c =
2246 xcb_randr_get_screen_resources(connection, root);
2247 xcb_randr_get_screen_resources_reply_t *gsr_r =
2248 xcb_randr_get_screen_resources_reply(connection, gsr_c, NULL);
2249
2250 if (!gsr_r)
2251 return 0;
2252
2253 xcb_randr_crtc_t *rc = xcb_randr_get_screen_resources_crtcs(gsr_r);
2254 xcb_randr_crtc_t idle_crtc = 0;
2255 xcb_randr_crtc_t active_crtc = 0;
2256
2257 /* Find either a crtc already connected to the desired output or idle */
2258 for (int c = 0; active_crtc == 0 && c < gsr_r->num_crtcs; c++) {
2259 xcb_randr_get_crtc_info_cookie_t gci_c =
2260 xcb_randr_get_crtc_info(connection, rc[c], gsr_r->config_timestamp);
2261 xcb_randr_get_crtc_info_reply_t *gci_r =
2262 xcb_randr_get_crtc_info_reply(connection, gci_c, NULL);
2263
2264 if (gci_r) {
2265 if (gci_r->mode) {
2266 int num_outputs = xcb_randr_get_crtc_info_outputs_length(gci_r);
2267 xcb_randr_output_t *outputs =
2268 xcb_randr_get_crtc_info_outputs(gci_r);
2269
2270 if (num_outputs == 1 && outputs[0] == output)
2271 active_crtc = rc[c];
2272
2273 } else if (idle_crtc == 0) {
2274 int num_possible = xcb_randr_get_crtc_info_possible_length(gci_r);
2275 xcb_randr_output_t *possible =
2276 xcb_randr_get_crtc_info_possible(gci_r);
2277
2278 for (int p = 0; p < num_possible; p++)
2279 if (possible[p] == output) {
2280 idle_crtc = rc[c];
2281 break;
2282 }
2283 }
2284 free(gci_r);
2285 }
2286 }
2287 free(gsr_r);
2288
2289 if (active_crtc)
2290 return active_crtc;
2291 return idle_crtc;
2292 }
2293
2294 VkResult
2295 wsi_acquire_xlib_display(VkPhysicalDevice physical_device,
2296 struct wsi_device *wsi_device,
2297 Display *dpy,
2298 VkDisplayKHR display)
2299 {
2300 struct wsi_display *wsi =
2301 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2302 xcb_connection_t *connection = XGetXCBConnection(dpy);
2303 struct wsi_display_connector *connector =
2304 wsi_display_connector_from_handle(display);
2305 xcb_window_t root;
2306
2307 /* XXX no support for multiple leases yet */
2308 if (wsi->fd >= 0)
2309 return VK_ERROR_INITIALIZATION_FAILED;
2310
2311 if (!connector->output) {
2312 connector->output = wsi_display_connector_id_to_output(connection,
2313 connector->id);
2314
2315 /* Check and see if we found the output */
2316 if (!connector->output)
2317 return VK_ERROR_INITIALIZATION_FAILED;
2318 }
2319
2320 root = wsi_display_output_to_root(connection, connector->output);
2321 if (!root)
2322 return VK_ERROR_INITIALIZATION_FAILED;
2323
2324 xcb_randr_crtc_t crtc = wsi_display_find_crtc_for_output(connection,
2325 root,
2326 connector->output);
2327
2328 if (!crtc)
2329 return VK_ERROR_INITIALIZATION_FAILED;
2330
2331 #ifdef HAVE_DRI3_MODIFIERS
2332 xcb_randr_lease_t lease = xcb_generate_id(connection);
2333 xcb_randr_create_lease_cookie_t cl_c =
2334 xcb_randr_create_lease(connection, root, lease, 1, 1,
2335 &crtc, &connector->output);
2336 xcb_randr_create_lease_reply_t *cl_r =
2337 xcb_randr_create_lease_reply(connection, cl_c, NULL);
2338 if (!cl_r)
2339 return VK_ERROR_INITIALIZATION_FAILED;
2340
2341 int fd = -1;
2342 if (cl_r->nfd > 0) {
2343 int *rcl_f = xcb_randr_create_lease_reply_fds(connection, cl_r);
2344
2345 fd = rcl_f[0];
2346 }
2347 free (cl_r);
2348 if (fd < 0)
2349 return VK_ERROR_INITIALIZATION_FAILED;
2350
2351 wsi->fd = fd;
2352 #endif
2353
2354 return VK_SUCCESS;
2355 }
2356
2357 VkResult
2358 wsi_get_randr_output_display(VkPhysicalDevice physical_device,
2359 struct wsi_device *wsi_device,
2360 Display *dpy,
2361 RROutput output,
2362 VkDisplayKHR *display)
2363 {
2364 xcb_connection_t *connection = XGetXCBConnection(dpy);
2365 struct wsi_display_connector *connector =
2366 wsi_display_get_output(wsi_device, connection, (xcb_randr_output_t) output);
2367
2368 if (connector)
2369 *display = wsi_display_connector_to_handle(connector);
2370 else
2371 *display = VK_NULL_HANDLE;
2372 return VK_SUCCESS;
2373 }
2374
2375 #endif
2376
2377 /* VK_EXT_display_control */
2378 VkResult
2379 wsi_display_power_control(VkDevice device,
2380 struct wsi_device *wsi_device,
2381 VkDisplayKHR display,
2382 const VkDisplayPowerInfoEXT *display_power_info)
2383 {
2384 struct wsi_display *wsi =
2385 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2386 struct wsi_display_connector *connector =
2387 wsi_display_connector_from_handle(display);
2388 int mode;
2389
2390 if (wsi->fd < 0)
2391 return VK_ERROR_INITIALIZATION_FAILED;
2392
2393 switch (display_power_info->powerState) {
2394 case VK_DISPLAY_POWER_STATE_OFF_EXT:
2395 mode = DRM_MODE_DPMS_OFF;
2396 break;
2397 case VK_DISPLAY_POWER_STATE_SUSPEND_EXT:
2398 mode = DRM_MODE_DPMS_SUSPEND;
2399 break;
2400 default:
2401 mode = DRM_MODE_DPMS_ON;
2402 break;
2403 }
2404 drmModeConnectorSetProperty(wsi->fd,
2405 connector->id,
2406 connector->dpms_property,
2407 mode);
2408 return VK_SUCCESS;
2409 }
2410
2411 VkResult
2412 wsi_register_device_event(VkDevice device,
2413 struct wsi_device *wsi_device,
2414 const VkDeviceEventInfoEXT *device_event_info,
2415 const VkAllocationCallbacks *allocator,
2416 struct wsi_fence **fence_p)
2417 {
2418 return VK_ERROR_FEATURE_NOT_PRESENT;
2419 }
2420
2421 VkResult
2422 wsi_register_display_event(VkDevice device,
2423 struct wsi_device *wsi_device,
2424 VkDisplayKHR display,
2425 const VkDisplayEventInfoEXT *display_event_info,
2426 const VkAllocationCallbacks *allocator,
2427 struct wsi_fence **fence_p)
2428 {
2429 struct wsi_display *wsi =
2430 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2431 struct wsi_display_fence *fence;
2432 VkResult ret;
2433
2434 switch (display_event_info->displayEvent) {
2435 case VK_DISPLAY_EVENT_TYPE_FIRST_PIXEL_OUT_EXT:
2436
2437 fence = wsi_display_fence_alloc(device, wsi_device, display, allocator);
2438
2439 if (!fence)
2440 return VK_ERROR_OUT_OF_HOST_MEMORY;
2441
2442 ret = wsi_register_vblank_event(fence, wsi_device, display,
2443 DRM_CRTC_SEQUENCE_RELATIVE, 1, NULL);
2444
2445 if (ret == VK_SUCCESS)
2446 *fence_p = &fence->base;
2447 else if (fence != NULL)
2448 vk_free2(wsi->alloc, allocator, fence);
2449
2450 break;
2451 default:
2452 ret = VK_ERROR_FEATURE_NOT_PRESENT;
2453 break;
2454 }
2455
2456 return ret;
2457 }
2458
2459
2460 VkResult
2461 wsi_get_swapchain_counter(VkDevice device,
2462 struct wsi_device *wsi_device,
2463 VkSwapchainKHR _swapchain,
2464 VkSurfaceCounterFlagBitsEXT flag_bits,
2465 uint64_t *value)
2466 {
2467 struct wsi_display *wsi =
2468 (struct wsi_display *) wsi_device->wsi[VK_ICD_WSI_PLATFORM_DISPLAY];
2469 struct wsi_display_swapchain *swapchain =
2470 (struct wsi_display_swapchain *) wsi_swapchain_from_handle(_swapchain);
2471 struct wsi_display_connector *connector =
2472 wsi_display_mode_from_handle(swapchain->surface->displayMode)->connector;
2473
2474 if (wsi->fd < 0)
2475 return VK_ERROR_INITIALIZATION_FAILED;
2476
2477 if (!connector->active) {
2478 *value = 0;
2479 return VK_SUCCESS;
2480 }
2481
2482 int ret = drmCrtcGetSequence(wsi->fd, connector->crtc_id, value, NULL);
2483 if (ret)
2484 *value = 0;
2485
2486 return VK_SUCCESS;
2487 }
2488