1 /*
2 * Copyright © 2013 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 #ifdef HAVE_XORG_CONFIG_H
24 #include <xorg-config.h>
25 #endif
26
27 #include "present_priv.h"
28 #include <misync.h>
29 #include <misyncstr.h>
30 #ifdef MONOTONIC_CLOCK
31 #include <time.h>
32 #endif
33
34 /*
35 * Screen flip mode
36 *
37 * Provides the default mode for drivers, that do not
38 * support flips and the full screen flip mode.
39 *
40 */
41
42 static uint64_t present_event_id;
43 static struct xorg_list present_exec_queue;
44 static struct xorg_list present_flip_queue;
45
46 static void
47 present_execute(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc);
48
49 static void
present_scmd_create_event_id(present_window_priv_ptr window_priv,present_vblank_ptr vblank)50 present_scmd_create_event_id(present_window_priv_ptr window_priv,
51 present_vblank_ptr vblank)
52 {
53 vblank->event_id = ++present_event_id;
54 }
55
56 static inline PixmapPtr
present_flip_pending_pixmap(ScreenPtr screen)57 present_flip_pending_pixmap(ScreenPtr screen)
58 {
59 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
60
61 if (!screen_priv)
62 return NULL;
63
64 if (!screen_priv->flip_pending)
65 return NULL;
66
67 return screen_priv->flip_pending->pixmap;
68 }
69
70 static Bool
present_check_flip(RRCrtcPtr crtc,WindowPtr window,PixmapPtr pixmap,Bool sync_flip,RegionPtr valid,int16_t x_off,int16_t y_off,PresentFlipReason * reason)71 present_check_flip(RRCrtcPtr crtc,
72 WindowPtr window,
73 PixmapPtr pixmap,
74 Bool sync_flip,
75 RegionPtr valid,
76 int16_t x_off,
77 int16_t y_off,
78 PresentFlipReason *reason)
79 {
80 ScreenPtr screen = window->drawable.pScreen;
81 PixmapPtr window_pixmap;
82 WindowPtr root = screen->root;
83 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
84
85 if (reason)
86 *reason = PRESENT_FLIP_REASON_UNKNOWN;
87
88 if (!screen_priv)
89 return FALSE;
90
91 if (!screen_priv->info)
92 return FALSE;
93
94 if (!crtc)
95 return FALSE;
96
97 /* Check to see if the driver supports flips at all */
98 if (!screen_priv->info->flip)
99 return FALSE;
100
101 /* Make sure the window hasn't been redirected with Composite */
102 window_pixmap = screen->GetWindowPixmap(window);
103 if (window_pixmap != screen->GetScreenPixmap(screen) &&
104 window_pixmap != screen_priv->flip_pixmap &&
105 window_pixmap != present_flip_pending_pixmap(screen))
106 return FALSE;
107
108 /* Check for full-screen window */
109 if (!RegionEqual(&window->clipList, &root->winSize)) {
110 return FALSE;
111 }
112
113 /* Source pixmap must align with window exactly */
114 if (x_off || y_off) {
115 return FALSE;
116 }
117
118 /* Make sure the area marked as valid fills the screen */
119 if (valid && !RegionEqual(valid, &root->winSize)) {
120 return FALSE;
121 }
122
123 /* Does the window match the pixmap exactly? */
124 if (window->drawable.x != 0 || window->drawable.y != 0 ||
125 #ifdef COMPOSITE
126 window->drawable.x != pixmap->screen_x || window->drawable.y != pixmap->screen_y ||
127 #endif
128 window->drawable.width != pixmap->drawable.width ||
129 window->drawable.height != pixmap->drawable.height) {
130 return FALSE;
131 }
132
133 /* Ask the driver for permission */
134 if (screen_priv->info->version >= 1 && screen_priv->info->check_flip2) {
135 if (!(*screen_priv->info->check_flip2) (crtc, window, pixmap, sync_flip, reason)) {
136 DebugPresent(("\td %08" PRIx32 " -> %08" PRIx32 "\n", window->drawable.id, pixmap ? pixmap->drawable.id : 0));
137 return FALSE;
138 }
139 } else if (screen_priv->info->check_flip) {
140 if (!(*screen_priv->info->check_flip) (crtc, window, pixmap, sync_flip)) {
141 DebugPresent(("\td %08" PRIx32 " -> %08" PRIx32 "\n", window->drawable.id, pixmap ? pixmap->drawable.id : 0));
142 return FALSE;
143 }
144 }
145
146 return TRUE;
147 }
148
149 static Bool
present_flip(RRCrtcPtr crtc,uint64_t event_id,uint64_t target_msc,PixmapPtr pixmap,Bool sync_flip)150 present_flip(RRCrtcPtr crtc,
151 uint64_t event_id,
152 uint64_t target_msc,
153 PixmapPtr pixmap,
154 Bool sync_flip)
155 {
156 ScreenPtr screen = crtc->pScreen;
157 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
158
159 return (*screen_priv->info->flip) (crtc, event_id, target_msc, pixmap, sync_flip);
160 }
161
162 static RRCrtcPtr
present_scmd_get_crtc(present_screen_priv_ptr screen_priv,WindowPtr window)163 present_scmd_get_crtc(present_screen_priv_ptr screen_priv, WindowPtr window)
164 {
165 if (!screen_priv->info)
166 return NULL;
167
168 return (*screen_priv->info->get_crtc)(window);
169 }
170
171 static uint32_t
present_scmd_query_capabilities(present_screen_priv_ptr screen_priv)172 present_scmd_query_capabilities(present_screen_priv_ptr screen_priv)
173 {
174 if (!screen_priv->info)
175 return 0;
176
177 return screen_priv->info->capabilities;
178 }
179
180 static int
present_get_ust_msc(ScreenPtr screen,RRCrtcPtr crtc,uint64_t * ust,uint64_t * msc)181 present_get_ust_msc(ScreenPtr screen, RRCrtcPtr crtc, uint64_t *ust, uint64_t *msc)
182 {
183 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
184
185 if (crtc == NULL)
186 return present_fake_get_ust_msc(screen, ust, msc);
187 else
188 return (*screen_priv->info->get_ust_msc)(crtc, ust, msc);
189 }
190
191 static void
present_flush(WindowPtr window)192 present_flush(WindowPtr window)
193 {
194 ScreenPtr screen = window->drawable.pScreen;
195 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
196
197 if (!screen_priv)
198 return;
199
200 if (!screen_priv->info)
201 return;
202
203 (*screen_priv->info->flush) (window);
204 }
205
206 static int
present_queue_vblank(ScreenPtr screen,WindowPtr window,RRCrtcPtr crtc,uint64_t event_id,uint64_t msc)207 present_queue_vblank(ScreenPtr screen,
208 WindowPtr window,
209 RRCrtcPtr crtc,
210 uint64_t event_id,
211 uint64_t msc)
212 {
213 Bool ret;
214
215 if (crtc == NULL)
216 ret = present_fake_queue_vblank(screen, event_id, msc);
217 else
218 {
219 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
220 ret = (*screen_priv->info->queue_vblank) (crtc, event_id, msc);
221 }
222 return ret;
223 }
224
225 static uint64_t
present_window_to_crtc_msc(WindowPtr window,RRCrtcPtr crtc,uint64_t window_msc,uint64_t new_msc)226 present_window_to_crtc_msc(WindowPtr window, RRCrtcPtr crtc, uint64_t window_msc, uint64_t new_msc)
227 {
228 present_window_priv_ptr window_priv = present_get_window_priv(window, TRUE);
229
230 if (crtc != window_priv->crtc) {
231 uint64_t old_ust, old_msc;
232
233 if (window_priv->crtc == PresentCrtcNeverSet) {
234 window_priv->msc_offset = 0;
235 } else {
236 /* The old CRTC may have been turned off, in which case
237 * we'll just use whatever previous MSC we'd seen from this CRTC
238 */
239
240 if (present_get_ust_msc(window->drawable.pScreen, window_priv->crtc, &old_ust, &old_msc) != Success)
241 old_msc = window_priv->msc;
242
243 window_priv->msc_offset += new_msc - old_msc;
244 }
245 window_priv->crtc = crtc;
246 }
247
248 return window_msc + window_priv->msc_offset;
249 }
250
251 /*
252 * When the wait fence or previous flip is completed, it's time
253 * to re-try the request
254 */
255 static void
present_re_execute(present_vblank_ptr vblank)256 present_re_execute(present_vblank_ptr vblank)
257 {
258 uint64_t ust = 0, crtc_msc = 0;
259
260 if (vblank->crtc)
261 (void) present_get_ust_msc(vblank->screen, vblank->crtc, &ust, &crtc_msc);
262
263 present_execute(vblank, ust, crtc_msc);
264 }
265
266 static void
present_flip_try_ready(ScreenPtr screen)267 present_flip_try_ready(ScreenPtr screen)
268 {
269 present_vblank_ptr vblank;
270
271 xorg_list_for_each_entry(vblank, &present_flip_queue, event_queue) {
272 if (vblank->queued) {
273 present_re_execute(vblank);
274 return;
275 }
276 }
277 }
278
279 static void
present_flip_idle(ScreenPtr screen)280 present_flip_idle(ScreenPtr screen)
281 {
282 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
283
284 if (screen_priv->flip_pixmap) {
285 present_pixmap_idle(screen_priv->flip_pixmap, screen_priv->flip_window,
286 screen_priv->flip_serial, screen_priv->flip_idle_fence);
287 if (screen_priv->flip_idle_fence)
288 present_fence_destroy(screen_priv->flip_idle_fence);
289 dixDestroyPixmap(screen_priv->flip_pixmap, screen_priv->flip_pixmap->drawable.id);
290 screen_priv->flip_crtc = NULL;
291 screen_priv->flip_window = NULL;
292 screen_priv->flip_serial = 0;
293 screen_priv->flip_pixmap = NULL;
294 screen_priv->flip_idle_fence = NULL;
295 }
296 }
297
298 void
present_restore_screen_pixmap(ScreenPtr screen)299 present_restore_screen_pixmap(ScreenPtr screen)
300 {
301 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
302 PixmapPtr screen_pixmap = (*screen->GetScreenPixmap)(screen);
303 PixmapPtr flip_pixmap;
304 WindowPtr flip_window;
305
306 if (screen_priv->flip_pending) {
307 flip_window = screen_priv->flip_pending->window;
308 flip_pixmap = screen_priv->flip_pending->pixmap;
309 } else {
310 flip_window = screen_priv->flip_window;
311 flip_pixmap = screen_priv->flip_pixmap;
312 }
313
314 assert (flip_pixmap);
315
316 /* Update the screen pixmap with the current flip pixmap contents
317 * Only do this the first time for a particular unflip operation, or
318 * we'll probably scribble over other windows
319 */
320 if (screen->root && screen->GetWindowPixmap(screen->root) == flip_pixmap)
321 present_copy_region(&screen_pixmap->drawable, flip_pixmap, NULL, 0, 0);
322
323 /* Switch back to using the screen pixmap now to avoid
324 * 2D applications drawing to the wrong pixmap.
325 */
326 if (flip_window)
327 present_set_tree_pixmap(flip_window, flip_pixmap, screen_pixmap);
328 if (screen->root)
329 present_set_tree_pixmap(screen->root, NULL, screen_pixmap);
330 }
331
332 void
present_set_abort_flip(ScreenPtr screen)333 present_set_abort_flip(ScreenPtr screen)
334 {
335 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
336
337 if (!screen_priv->flip_pending->abort_flip) {
338 present_restore_screen_pixmap(screen);
339 screen_priv->flip_pending->abort_flip = TRUE;
340 }
341 }
342
343 static void
present_unflip(ScreenPtr screen)344 present_unflip(ScreenPtr screen)
345 {
346 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
347
348 assert (!screen_priv->unflip_event_id);
349 assert (!screen_priv->flip_pending);
350
351 present_restore_screen_pixmap(screen);
352
353 screen_priv->unflip_event_id = ++present_event_id;
354 DebugPresent(("u %" PRIu64 "\n", screen_priv->unflip_event_id));
355 (*screen_priv->info->unflip) (screen, screen_priv->unflip_event_id);
356 }
357
358 static void
present_flip_notify(present_vblank_ptr vblank,uint64_t ust,uint64_t crtc_msc)359 present_flip_notify(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc)
360 {
361 ScreenPtr screen = vblank->screen;
362 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
363
364 DebugPresent(("\tn %" PRIu64 " %p %" PRIu64 " %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 "\n",
365 vblank->event_id, vblank, vblank->exec_msc, vblank->target_msc,
366 vblank->pixmap ? vblank->pixmap->drawable.id : 0,
367 vblank->window ? vblank->window->drawable.id : 0));
368
369 assert (vblank == screen_priv->flip_pending);
370
371 present_flip_idle(screen);
372
373 xorg_list_del(&vblank->event_queue);
374
375 /* Transfer reference for pixmap and fence from vblank to screen_priv */
376 screen_priv->flip_crtc = vblank->crtc;
377 screen_priv->flip_window = vblank->window;
378 screen_priv->flip_serial = vblank->serial;
379 screen_priv->flip_pixmap = vblank->pixmap;
380 screen_priv->flip_sync = vblank->sync_flip;
381 screen_priv->flip_idle_fence = vblank->idle_fence;
382
383 vblank->pixmap = NULL;
384 vblank->idle_fence = NULL;
385
386 screen_priv->flip_pending = NULL;
387
388 if (vblank->abort_flip)
389 present_unflip(screen);
390
391 present_vblank_notify(vblank, PresentCompleteKindPixmap, PresentCompleteModeFlip, ust, crtc_msc);
392 present_vblank_destroy(vblank);
393
394 present_flip_try_ready(screen);
395 }
396
397 void
present_event_notify(uint64_t event_id,uint64_t ust,uint64_t msc)398 present_event_notify(uint64_t event_id, uint64_t ust, uint64_t msc)
399 {
400 present_vblank_ptr vblank;
401 int s;
402
403 if (!event_id)
404 return;
405 DebugPresent(("\te %" PRIu64 " ust %" PRIu64 " msc %" PRIu64 "\n", event_id, ust, msc));
406 xorg_list_for_each_entry(vblank, &present_exec_queue, event_queue) {
407 int64_t match = event_id - vblank->event_id;
408 if (match == 0) {
409 present_execute(vblank, ust, msc);
410 return;
411 }
412 }
413 xorg_list_for_each_entry(vblank, &present_flip_queue, event_queue) {
414 if (vblank->event_id == event_id) {
415 if (vblank->queued)
416 present_execute(vblank, ust, msc);
417 else
418 present_flip_notify(vblank, ust, msc);
419 return;
420 }
421 }
422
423 for (s = 0; s < screenInfo.numScreens; s++) {
424 ScreenPtr screen = screenInfo.screens[s];
425 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
426
427 if (event_id == screen_priv->unflip_event_id) {
428 DebugPresent(("\tun %" PRIu64 "\n", event_id));
429 screen_priv->unflip_event_id = 0;
430 present_flip_idle(screen);
431 present_flip_try_ready(screen);
432 return;
433 }
434 }
435 }
436
437 /*
438 * 'window' is being reconfigured. Check to see if it is involved
439 * in flipping and clean up as necessary
440 */
441 static void
present_check_flip_window(WindowPtr window)442 present_check_flip_window (WindowPtr window)
443 {
444 ScreenPtr screen = window->drawable.pScreen;
445 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
446 present_window_priv_ptr window_priv = present_window_priv(window);
447 present_vblank_ptr flip_pending = screen_priv->flip_pending;
448 present_vblank_ptr vblank;
449 PresentFlipReason reason;
450
451 /* If this window hasn't ever been used with Present, it can't be
452 * flipping
453 */
454 if (!window_priv)
455 return;
456
457 if (screen_priv->unflip_event_id)
458 return;
459
460 if (flip_pending) {
461 /*
462 * Check pending flip
463 */
464 if (flip_pending->window == window) {
465 if (!present_check_flip(flip_pending->crtc, window, flip_pending->pixmap,
466 flip_pending->sync_flip, NULL, 0, 0, NULL))
467 present_set_abort_flip(screen);
468 }
469 } else {
470 /*
471 * Check current flip
472 */
473 if (window == screen_priv->flip_window) {
474 if (!present_check_flip(screen_priv->flip_crtc, window, screen_priv->flip_pixmap, screen_priv->flip_sync, NULL, 0, 0, NULL))
475 present_unflip(screen);
476 }
477 }
478
479 /* Now check any queued vblanks */
480 xorg_list_for_each_entry(vblank, &window_priv->vblank, window_list) {
481 if (vblank->queued && vblank->flip && !present_check_flip(vblank->crtc, window, vblank->pixmap, vblank->sync_flip, NULL, 0, 0, &reason)) {
482 vblank->flip = FALSE;
483 vblank->reason = reason;
484 if (vblank->sync_flip)
485 vblank->exec_msc = vblank->target_msc;
486 }
487 }
488 }
489
490 static Bool
present_scmd_can_window_flip(WindowPtr window)491 present_scmd_can_window_flip(WindowPtr window)
492 {
493 ScreenPtr screen = window->drawable.pScreen;
494 PixmapPtr window_pixmap;
495 WindowPtr root = screen->root;
496 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
497
498 if (!screen_priv)
499 return FALSE;
500
501 if (!screen_priv->info)
502 return FALSE;
503
504 /* Check to see if the driver supports flips at all */
505 if (!screen_priv->info->flip)
506 return FALSE;
507
508 /* Make sure the window hasn't been redirected with Composite */
509 window_pixmap = screen->GetWindowPixmap(window);
510 if (window_pixmap != screen->GetScreenPixmap(screen) &&
511 window_pixmap != screen_priv->flip_pixmap &&
512 window_pixmap != present_flip_pending_pixmap(screen))
513 return FALSE;
514
515 /* Check for full-screen window */
516 if (!RegionEqual(&window->clipList, &root->winSize)) {
517 return FALSE;
518 }
519
520 /* Does the window match the pixmap exactly? */
521 if (window->drawable.x != 0 || window->drawable.y != 0) {
522 return FALSE;
523 }
524
525 return TRUE;
526 }
527
528 /*
529 * Once the required MSC has been reached, execute the pending request.
530 *
531 * For requests to actually present something, either blt contents to
532 * the screen or queue a frame buffer swap.
533 *
534 * For requests to just get the current MSC/UST combo, skip that part and
535 * go straight to event delivery
536 */
537
538 static void
present_execute(present_vblank_ptr vblank,uint64_t ust,uint64_t crtc_msc)539 present_execute(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc)
540 {
541 WindowPtr window = vblank->window;
542 ScreenPtr screen = window->drawable.pScreen;
543 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
544
545 if (present_execute_wait(vblank, crtc_msc))
546 return;
547
548 if (vblank->flip && vblank->pixmap && vblank->window) {
549 if (screen_priv->flip_pending || screen_priv->unflip_event_id) {
550 DebugPresent(("\tr %" PRIu64 " %p (pending %p unflip %" PRIu64 ")\n",
551 vblank->event_id, vblank,
552 screen_priv->flip_pending, screen_priv->unflip_event_id));
553 xorg_list_del(&vblank->event_queue);
554 xorg_list_append(&vblank->event_queue, &present_flip_queue);
555 vblank->flip_ready = TRUE;
556 return;
557 }
558 }
559
560 xorg_list_del(&vblank->event_queue);
561 xorg_list_del(&vblank->window_list);
562 vblank->queued = FALSE;
563
564 if (vblank->pixmap && vblank->window) {
565
566 if (vblank->flip) {
567
568 DebugPresent(("\tf %" PRIu64 " %p %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 "\n",
569 vblank->event_id, vblank, crtc_msc,
570 vblank->pixmap->drawable.id, vblank->window->drawable.id));
571
572 /* Prepare to flip by placing it in the flip queue and
573 * and sticking it into the flip_pending field
574 */
575 screen_priv->flip_pending = vblank;
576
577 xorg_list_add(&vblank->event_queue, &present_flip_queue);
578 /* Try to flip
579 */
580 if (present_flip(vblank->crtc, vblank->event_id, vblank->target_msc, vblank->pixmap, vblank->sync_flip)) {
581 RegionPtr damage;
582
583 /* Fix window pixmaps:
584 * 1) Restore previous flip window pixmap
585 * 2) Set current flip window pixmap to the new pixmap
586 */
587 if (screen_priv->flip_window && screen_priv->flip_window != window)
588 present_set_tree_pixmap(screen_priv->flip_window,
589 screen_priv->flip_pixmap,
590 (*screen->GetScreenPixmap)(screen));
591 present_set_tree_pixmap(vblank->window, NULL, vblank->pixmap);
592 present_set_tree_pixmap(screen->root, NULL, vblank->pixmap);
593
594 /* Report update region as damaged
595 */
596 if (vblank->update) {
597 damage = vblank->update;
598 RegionIntersect(damage, damage, &window->clipList);
599 } else
600 damage = &window->clipList;
601
602 DamageDamageRegion(&vblank->window->drawable, damage);
603 return;
604 }
605
606 xorg_list_del(&vblank->event_queue);
607 /* Oops, flip failed. Clear the flip_pending field
608 */
609 screen_priv->flip_pending = NULL;
610 vblank->flip = FALSE;
611 vblank->exec_msc = vblank->target_msc;
612 }
613 DebugPresent(("\tc %p %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 "\n",
614 vblank, crtc_msc, vblank->pixmap->drawable.id, vblank->window->drawable.id));
615 if (screen_priv->flip_pending) {
616
617 /* Check pending flip
618 */
619 if (window == screen_priv->flip_pending->window)
620 present_set_abort_flip(screen);
621 } else if (!screen_priv->unflip_event_id) {
622
623 /* Check current flip
624 */
625 if (window == screen_priv->flip_window)
626 present_unflip(screen);
627 }
628
629 present_execute_copy(vblank, crtc_msc);
630
631 if (vblank->queued) {
632 xorg_list_add(&vblank->event_queue, &present_exec_queue);
633 xorg_list_append(&vblank->window_list,
634 &present_get_window_priv(window, TRUE)->vblank);
635 return;
636 }
637 }
638
639 present_execute_post(vblank, ust, crtc_msc);
640 }
641
642 static int
present_scmd_pixmap(WindowPtr window,PixmapPtr pixmap,CARD32 serial,RegionPtr valid,RegionPtr update,int16_t x_off,int16_t y_off,RRCrtcPtr target_crtc,SyncFence * wait_fence,SyncFence * idle_fence,uint32_t options,uint64_t window_msc,uint64_t divisor,uint64_t remainder,present_notify_ptr notifies,int num_notifies)643 present_scmd_pixmap(WindowPtr window,
644 PixmapPtr pixmap,
645 CARD32 serial,
646 RegionPtr valid,
647 RegionPtr update,
648 int16_t x_off,
649 int16_t y_off,
650 RRCrtcPtr target_crtc,
651 SyncFence *wait_fence,
652 SyncFence *idle_fence,
653 uint32_t options,
654 uint64_t window_msc,
655 uint64_t divisor,
656 uint64_t remainder,
657 present_notify_ptr notifies,
658 int num_notifies)
659 {
660 uint64_t ust = 0;
661 uint64_t target_msc;
662 uint64_t crtc_msc = 0;
663 int ret;
664 present_vblank_ptr vblank, tmp;
665 ScreenPtr screen = window->drawable.pScreen;
666 present_window_priv_ptr window_priv = present_get_window_priv(window, TRUE);
667 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
668
669 if (!window_priv)
670 return BadAlloc;
671
672 if (!screen_priv || !screen_priv->info)
673 target_crtc = NULL;
674 else if (!target_crtc) {
675 /* Update the CRTC if we have a pixmap or we don't have a CRTC
676 */
677 if (!pixmap)
678 target_crtc = window_priv->crtc;
679
680 if (!target_crtc || target_crtc == PresentCrtcNeverSet)
681 target_crtc = present_get_crtc(window);
682 }
683
684 ret = present_get_ust_msc(screen, target_crtc, &ust, &crtc_msc);
685
686 target_msc = present_window_to_crtc_msc(window, target_crtc, window_msc, crtc_msc);
687
688 if (ret == Success) {
689 /* Stash the current MSC away in case we need it later
690 */
691 window_priv->msc = crtc_msc;
692 }
693
694 present_adjust_timings(options,
695 &crtc_msc,
696 &target_msc,
697 divisor,
698 remainder);
699
700 /*
701 * Look for a matching presentation already on the list and
702 * don't bother doing the previous one if this one will overwrite it
703 * in the same frame
704 */
705
706 if (!update && pixmap) {
707 xorg_list_for_each_entry_safe(vblank, tmp, &window_priv->vblank, window_list) {
708
709 if (!vblank->pixmap)
710 continue;
711
712 if (!vblank->queued)
713 continue;
714
715 if (vblank->crtc != target_crtc || vblank->target_msc != target_msc)
716 continue;
717
718 DebugPresent(("\tx %" PRIu64 " %p %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 " (crtc %p)\n",
719 vblank->event_id, vblank, vblank->target_msc,
720 vblank->pixmap->drawable.id, vblank->window->drawable.id,
721 vblank->crtc));
722
723 present_pixmap_idle(vblank->pixmap, vblank->window, vblank->serial, vblank->idle_fence);
724 present_fence_destroy(vblank->idle_fence);
725 dixDestroyPixmap(vblank->pixmap, vblank->pixmap->drawable.id);
726
727 vblank->pixmap = NULL;
728 vblank->idle_fence = NULL;
729 vblank->flip = FALSE;
730 if (vblank->flip_ready)
731 present_re_execute(vblank);
732 }
733 }
734
735 vblank = present_vblank_create(window,
736 pixmap,
737 serial,
738 valid,
739 update,
740 x_off,
741 y_off,
742 target_crtc,
743 wait_fence,
744 idle_fence,
745 options,
746 screen_priv->info ? &screen_priv->info->capabilities : NULL,
747 notifies,
748 num_notifies,
749 target_msc,
750 crtc_msc);
751
752 if (!vblank)
753 return BadAlloc;
754
755 if (vblank->flip && vblank->sync_flip)
756 vblank->exec_msc--;
757
758 xorg_list_append(&vblank->event_queue, &present_exec_queue);
759 vblank->queued = TRUE;
760 if (msc_is_after(vblank->exec_msc, crtc_msc)) {
761 ret = present_queue_vblank(screen, window, target_crtc, vblank->event_id, vblank->exec_msc);
762 if (ret == Success)
763 return Success;
764
765 DebugPresent(("present_queue_vblank failed\n"));
766 }
767
768 present_execute(vblank, ust, crtc_msc);
769
770 return Success;
771 }
772
773 static void
present_scmd_abort_vblank(ScreenPtr screen,WindowPtr window,RRCrtcPtr crtc,uint64_t event_id,uint64_t msc)774 present_scmd_abort_vblank(ScreenPtr screen, WindowPtr window, RRCrtcPtr crtc, uint64_t event_id, uint64_t msc)
775 {
776 present_vblank_ptr vblank;
777
778 if (crtc == NULL)
779 present_fake_abort_vblank(screen, event_id, msc);
780 else
781 {
782 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
783
784 (*screen_priv->info->abort_vblank) (crtc, event_id, msc);
785 }
786
787 xorg_list_for_each_entry(vblank, &present_exec_queue, event_queue) {
788 int64_t match = event_id - vblank->event_id;
789 if (match == 0) {
790 xorg_list_del(&vblank->event_queue);
791 vblank->queued = FALSE;
792 return;
793 }
794 }
795 xorg_list_for_each_entry(vblank, &present_flip_queue, event_queue) {
796 if (vblank->event_id == event_id) {
797 xorg_list_del(&vblank->event_queue);
798 vblank->queued = FALSE;
799 return;
800 }
801 }
802 }
803
804 static void
present_scmd_flip_destroy(ScreenPtr screen)805 present_scmd_flip_destroy(ScreenPtr screen)
806 {
807 present_screen_priv_ptr screen_priv = present_screen_priv(screen);
808
809 /* Reset window pixmaps back to the screen pixmap */
810 if (screen_priv->flip_pending)
811 present_set_abort_flip(screen);
812
813 /* Drop reference to any pending flip or unflip pixmaps. */
814 present_flip_idle(screen);
815 }
816
817 void
present_scmd_init_mode_hooks(present_screen_priv_ptr screen_priv)818 present_scmd_init_mode_hooks(present_screen_priv_ptr screen_priv)
819 {
820 screen_priv->query_capabilities = &present_scmd_query_capabilities;
821 screen_priv->get_crtc = &present_scmd_get_crtc;
822
823 screen_priv->check_flip = &present_check_flip;
824 screen_priv->check_flip_window = &present_check_flip_window;
825 screen_priv->can_window_flip = &present_scmd_can_window_flip;
826
827 screen_priv->present_pixmap = &present_scmd_pixmap;
828 screen_priv->create_event_id = &present_scmd_create_event_id;
829
830 screen_priv->queue_vblank = &present_queue_vblank;
831 screen_priv->flush = &present_flush;
832 screen_priv->re_execute = &present_re_execute;
833
834 screen_priv->abort_vblank = &present_scmd_abort_vblank;
835 screen_priv->flip_destroy = &present_scmd_flip_destroy;
836 }
837
838 Bool
present_init(void)839 present_init(void)
840 {
841 xorg_list_init(&present_exec_queue);
842 xorg_list_init(&present_flip_queue);
843 present_fake_queue_init();
844 return TRUE;
845 }
846