present_scmd.c (28199B)
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 #include "present_priv.h" 24 #include <misync.h> 25 #include <misyncstr.h> 26 #ifdef MONOTONIC_CLOCK 27 #include <time.h> 28 #endif 29 30 /* 31 * Screen flip mode 32 * 33 * Provides the default mode for drivers, that do not 34 * support flips and the full screen flip mode. 35 * 36 */ 37 38 static uint64_t present_scmd_event_id; 39 40 static struct xorg_list present_exec_queue; 41 static struct xorg_list present_flip_queue; 42 43 static void 44 present_execute(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc); 45 46 static inline PixmapPtr 47 present_flip_pending_pixmap(ScreenPtr screen) 48 { 49 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 50 51 if (!screen_priv) 52 return NULL; 53 54 if (!screen_priv->flip_pending) 55 return NULL; 56 57 return screen_priv->flip_pending->pixmap; 58 } 59 60 static Bool 61 present_check_flip(RRCrtcPtr crtc, 62 WindowPtr window, 63 PixmapPtr pixmap, 64 Bool sync_flip, 65 RegionPtr valid, 66 int16_t x_off, 67 int16_t y_off, 68 PresentFlipReason *reason) 69 { 70 ScreenPtr screen = window->drawable.pScreen; 71 PixmapPtr window_pixmap; 72 WindowPtr root = screen->root; 73 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 74 75 if (crtc) { 76 screen_priv = present_screen_priv(crtc->pScreen); 77 } 78 if (reason) 79 *reason = PRESENT_FLIP_REASON_UNKNOWN; 80 81 if (!screen_priv) 82 return FALSE; 83 84 if (!screen_priv->info) 85 return FALSE; 86 87 if (!crtc) 88 return FALSE; 89 90 /* Check to see if the driver supports flips at all */ 91 if (!screen_priv->info->flip) 92 return FALSE; 93 94 /* Make sure the window hasn't been redirected with Composite */ 95 window_pixmap = screen->GetWindowPixmap(window); 96 if (window_pixmap != screen->GetScreenPixmap(screen) && 97 window_pixmap != screen_priv->flip_pixmap && 98 window_pixmap != present_flip_pending_pixmap(screen)) 99 return FALSE; 100 101 /* Check for full-screen window */ 102 if (!RegionEqual(&window->clipList, &root->winSize)) { 103 return FALSE; 104 } 105 106 /* Source pixmap must align with window exactly */ 107 if (x_off || y_off) { 108 return FALSE; 109 } 110 111 /* Make sure the area marked as valid fills the screen */ 112 if (valid && !RegionEqual(valid, &root->winSize)) { 113 return FALSE; 114 } 115 116 /* Does the window match the pixmap exactly? */ 117 if (window->drawable.x != 0 || window->drawable.y != 0 || 118 #ifdef COMPOSITE 119 window->drawable.x != pixmap->screen_x || window->drawable.y != pixmap->screen_y || 120 #endif 121 window->drawable.width != pixmap->drawable.width || 122 window->drawable.height != pixmap->drawable.height) { 123 return FALSE; 124 } 125 126 /* Ask the driver for permission */ 127 if (screen_priv->info->version >= 1 && screen_priv->info->check_flip2) { 128 if (!(*screen_priv->info->check_flip2) (crtc, window, pixmap, sync_flip, reason)) { 129 DebugPresent(("\td %08" PRIx32 " -> %08" PRIx32 "\n", window->drawable.id, pixmap ? pixmap->drawable.id : 0)); 130 return FALSE; 131 } 132 } else if (screen_priv->info->check_flip) { 133 if (!(*screen_priv->info->check_flip) (crtc, window, pixmap, sync_flip)) { 134 DebugPresent(("\td %08" PRIx32 " -> %08" PRIx32 "\n", window->drawable.id, pixmap ? pixmap->drawable.id : 0)); 135 return FALSE; 136 } 137 } 138 139 return TRUE; 140 } 141 142 static Bool 143 present_flip(RRCrtcPtr crtc, 144 uint64_t event_id, 145 uint64_t target_msc, 146 PixmapPtr pixmap, 147 Bool sync_flip) 148 { 149 ScreenPtr screen = crtc->pScreen; 150 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 151 152 return (*screen_priv->info->flip) (crtc, event_id, target_msc, pixmap, sync_flip); 153 } 154 155 static RRCrtcPtr 156 present_scmd_get_crtc(present_screen_priv_ptr screen_priv, WindowPtr window) 157 { 158 if (!screen_priv->info) 159 return NULL; 160 161 return (*screen_priv->info->get_crtc)(window); 162 } 163 164 static uint32_t 165 present_scmd_query_capabilities(present_screen_priv_ptr screen_priv) 166 { 167 if (!screen_priv->info) 168 return 0; 169 170 return screen_priv->info->capabilities; 171 } 172 173 static int 174 present_get_ust_msc(ScreenPtr screen, RRCrtcPtr crtc, uint64_t *ust, uint64_t *msc) 175 { 176 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 177 present_screen_priv_ptr crtc_screen_priv = screen_priv; 178 if (crtc) 179 crtc_screen_priv = present_screen_priv(crtc->pScreen); 180 181 if (crtc == NULL) 182 return present_fake_get_ust_msc(screen, ust, msc); 183 else 184 return (*crtc_screen_priv->info->get_ust_msc)(crtc, ust, msc); 185 } 186 187 static void 188 present_flush(WindowPtr window) 189 { 190 ScreenPtr screen = window->drawable.pScreen; 191 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 192 193 if (!screen_priv) 194 return; 195 196 if (!screen_priv->info) 197 return; 198 199 (*screen_priv->info->flush) (window); 200 } 201 202 static int 203 present_queue_vblank(ScreenPtr screen, 204 WindowPtr window, 205 RRCrtcPtr crtc, 206 uint64_t event_id, 207 uint64_t msc) 208 { 209 Bool ret; 210 211 if (crtc == NULL) 212 ret = present_fake_queue_vblank(screen, event_id, msc); 213 else 214 { 215 present_screen_priv_ptr screen_priv = present_screen_priv(crtc->pScreen); 216 ret = (*screen_priv->info->queue_vblank) (crtc, event_id, msc); 217 } 218 return ret; 219 } 220 221 /* 222 * When the wait fence or previous flip is completed, it's time 223 * to re-try the request 224 */ 225 static void 226 present_re_execute(present_vblank_ptr vblank) 227 { 228 uint64_t ust = 0, crtc_msc = 0; 229 230 if (vblank->crtc) 231 (void) present_get_ust_msc(vblank->screen, vblank->crtc, &ust, &crtc_msc); 232 233 present_execute(vblank, ust, crtc_msc); 234 } 235 236 static void 237 present_flip_try_ready(ScreenPtr screen) 238 { 239 present_vblank_ptr vblank; 240 241 xorg_list_for_each_entry(vblank, &present_flip_queue, event_queue) { 242 if (vblank->queued) { 243 present_re_execute(vblank); 244 return; 245 } 246 } 247 } 248 249 static void 250 present_flip_idle(ScreenPtr screen) 251 { 252 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 253 254 if (screen_priv->flip_pixmap) { 255 present_pixmap_idle(screen_priv->flip_pixmap, screen_priv->flip_window, 256 screen_priv->flip_serial, screen_priv->flip_idle_fence); 257 if (screen_priv->flip_idle_fence) 258 present_fence_destroy(screen_priv->flip_idle_fence); 259 dixDestroyPixmap(screen_priv->flip_pixmap, screen_priv->flip_pixmap->drawable.id); 260 screen_priv->flip_crtc = NULL; 261 screen_priv->flip_window = NULL; 262 screen_priv->flip_serial = 0; 263 screen_priv->flip_pixmap = NULL; 264 screen_priv->flip_idle_fence = NULL; 265 } 266 } 267 268 void 269 present_restore_screen_pixmap(ScreenPtr screen) 270 { 271 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 272 PixmapPtr screen_pixmap = (*screen->GetScreenPixmap)(screen); 273 PixmapPtr flip_pixmap; 274 WindowPtr flip_window; 275 276 if (screen_priv->flip_pending) { 277 flip_window = screen_priv->flip_pending->window; 278 flip_pixmap = screen_priv->flip_pending->pixmap; 279 } else { 280 flip_window = screen_priv->flip_window; 281 flip_pixmap = screen_priv->flip_pixmap; 282 } 283 284 assert (flip_pixmap); 285 286 /* Update the screen pixmap with the current flip pixmap contents 287 * Only do this the first time for a particular unflip operation, or 288 * we'll probably scribble over other windows 289 */ 290 if (screen->root && screen->GetWindowPixmap(screen->root) == flip_pixmap) 291 present_copy_region(&screen_pixmap->drawable, flip_pixmap, NULL, 0, 0); 292 293 /* Switch back to using the screen pixmap now to avoid 294 * 2D applications drawing to the wrong pixmap. 295 */ 296 if (flip_window) 297 present_set_tree_pixmap(flip_window, flip_pixmap, screen_pixmap); 298 if (screen->root) 299 present_set_tree_pixmap(screen->root, NULL, screen_pixmap); 300 } 301 302 void 303 present_set_abort_flip(ScreenPtr screen) 304 { 305 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 306 307 if (!screen_priv->flip_pending->abort_flip) { 308 present_restore_screen_pixmap(screen); 309 screen_priv->flip_pending->abort_flip = TRUE; 310 } 311 } 312 313 static void 314 present_unflip(ScreenPtr screen) 315 { 316 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 317 318 assert (!screen_priv->unflip_event_id); 319 assert (!screen_priv->flip_pending); 320 321 present_restore_screen_pixmap(screen); 322 323 screen_priv->unflip_event_id = ++present_scmd_event_id; 324 DebugPresent(("u %" PRIu64 "\n", screen_priv->unflip_event_id)); 325 (*screen_priv->info->unflip) (screen, screen_priv->unflip_event_id); 326 } 327 328 static void 329 present_flip_notify(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc) 330 { 331 ScreenPtr screen = vblank->screen; 332 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 333 334 DebugPresent(("\tn %" PRIu64 " %p %" PRIu64 " %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 "\n", 335 vblank->event_id, vblank, vblank->exec_msc, vblank->target_msc, 336 vblank->pixmap ? vblank->pixmap->drawable.id : 0, 337 vblank->window ? vblank->window->drawable.id : 0)); 338 339 assert (vblank == screen_priv->flip_pending); 340 341 present_flip_idle(screen); 342 343 xorg_list_del(&vblank->event_queue); 344 345 /* Transfer reference for pixmap and fence from vblank to screen_priv */ 346 screen_priv->flip_crtc = vblank->crtc; 347 screen_priv->flip_window = vblank->window; 348 screen_priv->flip_serial = vblank->serial; 349 screen_priv->flip_pixmap = vblank->pixmap; 350 screen_priv->flip_sync = vblank->sync_flip; 351 screen_priv->flip_idle_fence = vblank->idle_fence; 352 353 vblank->pixmap = NULL; 354 vblank->idle_fence = NULL; 355 356 screen_priv->flip_pending = NULL; 357 358 if (vblank->abort_flip) 359 present_unflip(screen); 360 361 present_vblank_notify(vblank, PresentCompleteKindPixmap, PresentCompleteModeFlip, ust, crtc_msc); 362 present_vblank_destroy(vblank); 363 364 present_flip_try_ready(screen); 365 } 366 367 void 368 present_event_notify(uint64_t event_id, uint64_t ust, uint64_t msc) 369 { 370 present_vblank_ptr vblank; 371 int s; 372 373 if (!event_id) 374 return; 375 DebugPresent(("\te %" PRIu64 " ust %" PRIu64 " msc %" PRIu64 "\n", event_id, ust, msc)); 376 xorg_list_for_each_entry(vblank, &present_exec_queue, event_queue) { 377 int64_t match = event_id - vblank->event_id; 378 if (match == 0) { 379 present_execute(vblank, ust, msc); 380 return; 381 } 382 } 383 xorg_list_for_each_entry(vblank, &present_flip_queue, event_queue) { 384 if (vblank->event_id == event_id) { 385 if (vblank->queued) 386 present_execute(vblank, ust, msc); 387 else 388 present_flip_notify(vblank, ust, msc); 389 return; 390 } 391 } 392 393 for (s = 0; s < screenInfo.numScreens; s++) { 394 ScreenPtr screen = screenInfo.screens[s]; 395 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 396 397 if (event_id == screen_priv->unflip_event_id) { 398 DebugPresent(("\tun %" PRIu64 "\n", event_id)); 399 screen_priv->unflip_event_id = 0; 400 present_flip_idle(screen); 401 present_flip_try_ready(screen); 402 return; 403 } 404 } 405 } 406 407 /* 408 * 'window' is being reconfigured. Check to see if it is involved 409 * in flipping and clean up as necessary 410 */ 411 static void 412 present_check_flip_window (WindowPtr window) 413 { 414 ScreenPtr screen = window->drawable.pScreen; 415 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 416 present_window_priv_ptr window_priv = present_window_priv(window); 417 present_vblank_ptr flip_pending = screen_priv->flip_pending; 418 present_vblank_ptr vblank; 419 PresentFlipReason reason; 420 421 /* If this window hasn't ever been used with Present, it can't be 422 * flipping 423 */ 424 if (!window_priv) 425 return; 426 427 if (screen_priv->unflip_event_id) 428 return; 429 430 if (flip_pending) { 431 /* 432 * Check pending flip 433 */ 434 if (flip_pending->window == window) { 435 if (!present_check_flip(flip_pending->crtc, window, flip_pending->pixmap, 436 flip_pending->sync_flip, NULL, 0, 0, NULL)) 437 present_set_abort_flip(screen); 438 } 439 } else { 440 /* 441 * Check current flip 442 */ 443 if (window == screen_priv->flip_window) { 444 if (!present_check_flip(screen_priv->flip_crtc, window, screen_priv->flip_pixmap, screen_priv->flip_sync, NULL, 0, 0, NULL)) 445 present_unflip(screen); 446 } 447 } 448 449 /* Now check any queued vblanks */ 450 xorg_list_for_each_entry(vblank, &window_priv->vblank, window_list) { 451 if (vblank->queued && vblank->flip && !present_check_flip(vblank->crtc, window, vblank->pixmap, vblank->sync_flip, NULL, 0, 0, &reason)) { 452 vblank->flip = FALSE; 453 vblank->reason = reason; 454 if (vblank->sync_flip) 455 vblank->exec_msc = vblank->target_msc; 456 } 457 } 458 } 459 460 static Bool 461 present_scmd_can_window_flip(WindowPtr window) 462 { 463 ScreenPtr screen = window->drawable.pScreen; 464 PixmapPtr window_pixmap; 465 WindowPtr root = screen->root; 466 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 467 468 if (!screen_priv) 469 return FALSE; 470 471 if (!screen_priv->info) 472 return FALSE; 473 474 /* Check to see if the driver supports flips at all */ 475 if (!screen_priv->info->flip) 476 return FALSE; 477 478 /* Make sure the window hasn't been redirected with Composite */ 479 window_pixmap = screen->GetWindowPixmap(window); 480 if (window_pixmap != screen->GetScreenPixmap(screen) && 481 window_pixmap != screen_priv->flip_pixmap && 482 window_pixmap != present_flip_pending_pixmap(screen)) 483 return FALSE; 484 485 /* Check for full-screen window */ 486 if (!RegionEqual(&window->clipList, &root->winSize)) { 487 return FALSE; 488 } 489 490 /* Does the window match the pixmap exactly? */ 491 if (window->drawable.x != 0 || window->drawable.y != 0) { 492 return FALSE; 493 } 494 495 return TRUE; 496 } 497 498 /* 499 * Clean up any pending or current flips for this window 500 */ 501 static void 502 present_scmd_clear_window_flip(WindowPtr window) 503 { 504 ScreenPtr screen = window->drawable.pScreen; 505 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 506 present_vblank_ptr flip_pending = screen_priv->flip_pending; 507 508 if (flip_pending && flip_pending->window == window) { 509 present_set_abort_flip(screen); 510 flip_pending->window = NULL; 511 } 512 if (screen_priv->flip_window == window) { 513 present_restore_screen_pixmap(screen); 514 screen_priv->flip_window = NULL; 515 } 516 } 517 518 /* 519 * Once the required MSC has been reached, execute the pending request. 520 * 521 * For requests to actually present something, either blt contents to 522 * the screen or queue a frame buffer swap. 523 * 524 * For requests to just get the current MSC/UST combo, skip that part and 525 * go straight to event delivery 526 */ 527 528 static void 529 present_execute(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc) 530 { 531 WindowPtr window = vblank->window; 532 ScreenPtr screen = window->drawable.pScreen; 533 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 534 if (vblank && vblank->crtc) { 535 screen_priv=present_screen_priv(vblank->crtc->pScreen); 536 } 537 538 if (present_execute_wait(vblank, crtc_msc)) 539 return; 540 541 if (vblank->flip && vblank->pixmap && vblank->window) { 542 if (screen_priv->flip_pending || screen_priv->unflip_event_id) { 543 DebugPresent(("\tr %" PRIu64 " %p (pending %p unflip %" PRIu64 ")\n", 544 vblank->event_id, vblank, 545 screen_priv->flip_pending, screen_priv->unflip_event_id)); 546 xorg_list_del(&vblank->event_queue); 547 xorg_list_append(&vblank->event_queue, &present_flip_queue); 548 vblank->flip_ready = TRUE; 549 return; 550 } 551 } 552 553 xorg_list_del(&vblank->event_queue); 554 xorg_list_del(&vblank->window_list); 555 vblank->queued = FALSE; 556 557 if (vblank->pixmap && vblank->window) { 558 559 if (vblank->flip) { 560 561 DebugPresent(("\tf %" PRIu64 " %p %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 "\n", 562 vblank->event_id, vblank, crtc_msc, 563 vblank->pixmap->drawable.id, vblank->window->drawable.id)); 564 565 /* Prepare to flip by placing it in the flip queue and 566 * and sticking it into the flip_pending field 567 */ 568 screen_priv->flip_pending = vblank; 569 570 xorg_list_add(&vblank->event_queue, &present_flip_queue); 571 /* Try to flip 572 */ 573 if (present_flip(vblank->crtc, vblank->event_id, vblank->target_msc, vblank->pixmap, vblank->sync_flip)) { 574 RegionPtr damage; 575 576 /* Fix window pixmaps: 577 * 1) Restore previous flip window pixmap 578 * 2) Set current flip window pixmap to the new pixmap 579 */ 580 if (screen_priv->flip_window && screen_priv->flip_window != window) 581 present_set_tree_pixmap(screen_priv->flip_window, 582 screen_priv->flip_pixmap, 583 (*screen->GetScreenPixmap)(screen)); 584 present_set_tree_pixmap(vblank->window, NULL, vblank->pixmap); 585 present_set_tree_pixmap(screen->root, NULL, vblank->pixmap); 586 587 /* Report update region as damaged 588 */ 589 if (vblank->update) { 590 damage = vblank->update; 591 RegionIntersect(damage, damage, &window->clipList); 592 } else 593 damage = &window->clipList; 594 595 DamageDamageRegion(&vblank->window->drawable, damage); 596 return; 597 } 598 599 xorg_list_del(&vblank->event_queue); 600 /* Oops, flip failed. Clear the flip_pending field 601 */ 602 screen_priv->flip_pending = NULL; 603 vblank->flip = FALSE; 604 vblank->exec_msc = vblank->target_msc; 605 } 606 DebugPresent(("\tc %p %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 "\n", 607 vblank, crtc_msc, vblank->pixmap->drawable.id, vblank->window->drawable.id)); 608 if (screen_priv->flip_pending) { 609 610 /* Check pending flip 611 */ 612 if (window == screen_priv->flip_pending->window) 613 present_set_abort_flip(screen); 614 } else if (!screen_priv->unflip_event_id) { 615 616 /* Check current flip 617 */ 618 if (window == screen_priv->flip_window) 619 present_unflip(screen); 620 } 621 622 present_execute_copy(vblank, crtc_msc); 623 624 if (vblank->queued) { 625 xorg_list_add(&vblank->event_queue, &present_exec_queue); 626 xorg_list_append(&vblank->window_list, 627 &present_get_window_priv(window, TRUE)->vblank); 628 return; 629 } 630 } 631 632 present_execute_post(vblank, ust, crtc_msc); 633 } 634 635 static void 636 present_scmd_update_window_crtc(WindowPtr window, RRCrtcPtr crtc, uint64_t new_msc) 637 { 638 present_window_priv_ptr window_priv = present_get_window_priv(window, TRUE); 639 uint64_t old_ust, old_msc; 640 641 /* Crtc unchanged, no offset. */ 642 if (crtc == window_priv->crtc) 643 return; 644 645 /* No crtc earlier to offset against, just set the crtc. */ 646 if (window_priv->crtc == PresentCrtcNeverSet) { 647 window_priv->crtc = crtc; 648 return; 649 } 650 651 /* Crtc may have been turned off or be destroyed, just use whatever previous MSC we'd seen from this CRTC. */ 652 if (!RRCrtcExists(window->drawable.pScreen, window_priv->crtc) || 653 present_get_ust_msc(window->drawable.pScreen, window_priv->crtc, &old_ust, &old_msc) != Success) 654 old_msc = window_priv->msc; 655 656 window_priv->msc_offset += new_msc - old_msc; 657 window_priv->crtc = crtc; 658 } 659 660 static int 661 present_scmd_pixmap(WindowPtr window, 662 PixmapPtr pixmap, 663 CARD32 serial, 664 RegionPtr valid, 665 RegionPtr update, 666 int16_t x_off, 667 int16_t y_off, 668 RRCrtcPtr target_crtc, 669 SyncFence *wait_fence, 670 SyncFence *idle_fence, 671 uint32_t options, 672 uint64_t target_window_msc, 673 uint64_t divisor, 674 uint64_t remainder, 675 present_notify_ptr notifies, 676 int num_notifies) 677 { 678 uint64_t ust = 0; 679 uint64_t target_msc; 680 uint64_t crtc_msc = 0; 681 int ret; 682 present_vblank_ptr vblank, tmp; 683 ScreenPtr screen = window->drawable.pScreen; 684 present_window_priv_ptr window_priv = present_get_window_priv(window, TRUE); 685 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 686 687 if (!window_priv) 688 return BadAlloc; 689 690 if (!screen_priv || !screen_priv->info) 691 target_crtc = NULL; 692 else if (!target_crtc) { 693 /* Update the CRTC if we have a pixmap or we don't have a CRTC 694 */ 695 if (!pixmap) 696 target_crtc = window_priv->crtc; 697 698 if (!target_crtc || target_crtc == PresentCrtcNeverSet) 699 target_crtc = present_get_crtc(window); 700 } 701 702 ret = present_get_ust_msc(screen, target_crtc, &ust, &crtc_msc); 703 704 present_scmd_update_window_crtc(window, target_crtc, crtc_msc); 705 706 if (ret == Success) { 707 /* Stash the current MSC away in case we need it later 708 */ 709 window_priv->msc = crtc_msc; 710 } 711 712 target_msc = present_get_target_msc(target_window_msc + window_priv->msc_offset, 713 crtc_msc, 714 divisor, 715 remainder, 716 options); 717 718 /* 719 * Look for a matching presentation already on the list and 720 * don't bother doing the previous one if this one will overwrite it 721 * in the same frame 722 */ 723 724 if (!update && pixmap) { 725 xorg_list_for_each_entry_safe(vblank, tmp, &window_priv->vblank, window_list) { 726 727 if (!vblank->pixmap) 728 continue; 729 730 if (!vblank->queued) 731 continue; 732 733 if (vblank->crtc != target_crtc || vblank->target_msc != target_msc) 734 continue; 735 736 present_vblank_scrap(vblank); 737 if (vblank->flip_ready) 738 present_re_execute(vblank); 739 } 740 } 741 742 vblank = present_vblank_create(window, 743 pixmap, 744 serial, 745 valid, 746 update, 747 x_off, 748 y_off, 749 target_crtc, 750 wait_fence, 751 idle_fence, 752 options, 753 screen_priv->info ? screen_priv->info->capabilities : 0, 754 notifies, 755 num_notifies, 756 target_msc, 757 crtc_msc); 758 759 if (!vblank) 760 return BadAlloc; 761 762 vblank->event_id = ++present_scmd_event_id; 763 764 if (vblank->flip && vblank->sync_flip) 765 vblank->exec_msc--; 766 767 xorg_list_append(&vblank->event_queue, &present_exec_queue); 768 vblank->queued = TRUE; 769 if (msc_is_after(vblank->exec_msc, crtc_msc)) { 770 ret = present_queue_vblank(screen, window, target_crtc, vblank->event_id, vblank->exec_msc); 771 if (ret == Success) 772 return Success; 773 774 DebugPresent(("present_queue_vblank failed\n")); 775 } 776 777 present_execute(vblank, ust, crtc_msc); 778 779 return Success; 780 } 781 782 static void 783 present_scmd_abort_vblank(ScreenPtr screen, WindowPtr window, RRCrtcPtr crtc, uint64_t event_id, uint64_t msc) 784 { 785 present_vblank_ptr vblank; 786 787 if (crtc == NULL) 788 present_fake_abort_vblank(screen, event_id, msc); 789 else 790 { 791 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 792 793 (*screen_priv->info->abort_vblank) (crtc, event_id, msc); 794 } 795 796 xorg_list_for_each_entry(vblank, &present_exec_queue, event_queue) { 797 int64_t match = event_id - vblank->event_id; 798 if (match == 0) { 799 xorg_list_del(&vblank->event_queue); 800 vblank->queued = FALSE; 801 return; 802 } 803 } 804 xorg_list_for_each_entry(vblank, &present_flip_queue, event_queue) { 805 if (vblank->event_id == event_id) { 806 xorg_list_del(&vblank->event_queue); 807 vblank->queued = FALSE; 808 return; 809 } 810 } 811 } 812 813 static void 814 present_scmd_flip_destroy(ScreenPtr screen) 815 { 816 present_screen_priv_ptr screen_priv = present_screen_priv(screen); 817 818 /* Reset window pixmaps back to the screen pixmap */ 819 if (screen_priv->flip_pending) 820 present_set_abort_flip(screen); 821 822 /* Drop reference to any pending flip or unflip pixmaps. */ 823 present_flip_idle(screen); 824 } 825 826 void 827 present_scmd_init_mode_hooks(present_screen_priv_ptr screen_priv) 828 { 829 screen_priv->query_capabilities = &present_scmd_query_capabilities; 830 screen_priv->get_crtc = &present_scmd_get_crtc; 831 832 screen_priv->check_flip = &present_check_flip; 833 screen_priv->check_flip_window = &present_check_flip_window; 834 screen_priv->can_window_flip = &present_scmd_can_window_flip; 835 screen_priv->clear_window_flip = &present_scmd_clear_window_flip; 836 837 screen_priv->present_pixmap = &present_scmd_pixmap; 838 839 screen_priv->queue_vblank = &present_queue_vblank; 840 screen_priv->flush = &present_flush; 841 screen_priv->re_execute = &present_re_execute; 842 843 screen_priv->abort_vblank = &present_scmd_abort_vblank; 844 screen_priv->flip_destroy = &present_scmd_flip_destroy; 845 } 846 847 Bool 848 present_init(void) 849 { 850 xorg_list_init(&present_exec_queue); 851 xorg_list_init(&present_flip_queue); 852 present_fake_queue_init(); 853 return TRUE; 854 }