Edit
IABSD.fr/xenocara/xserver/present/present.c
matthieu
- xserver/present/present.c
-
/* * Copyright © 2013 Keith Packard * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that copyright * notice and this permission notice appear in supporting documentation, and * that the name of the copyright holders not be used in advertising or * publicity pertaining to distribution of the software without specific, * written prior permission. The copyright holders make no representations * about the suitability of this software for any purpose. It is provided "as * is" without express or implied warranty. * * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE * OF THIS SOFTWARE. */ #ifdef HAVE_XORG_CONFIG_H #include <xorg-config.h> #endif #include "present_priv.h" #include <gcstruct.h> /* * Returns: * TRUE if the first MSC value is equal to or after the second one * FALSE if the first MSC value is before the second one */ static Bool msc_is_equal_or_after(uint64_t test, uint64_t reference) { return (int64_t)(test - reference) >= 0; } uint32_t present_query_capabilities(RRCrtcPtr crtc) { present_screen_priv_ptr screen_priv; if (!crtc) return 0; screen_priv = present_screen_priv(crtc->pScreen); if (!screen_priv) return 0; return screen_priv->query_capabilities(screen_priv); } RRCrtcPtr present_get_crtc(WindowPtr window) { ScreenPtr screen = window->drawable.pScreen; present_screen_priv_ptr screen_priv = present_screen_priv(screen); if (!screen_priv) return NULL; return screen_priv->get_crtc(screen_priv, window); } /* * Copies the update region from a pixmap to the target drawable */ void present_copy_region(DrawablePtr drawable, PixmapPtr pixmap, RegionPtr update, int16_t x_off, int16_t y_off) { ScreenPtr screen = drawable->pScreen; GCPtr gc; gc = GetScratchGC(drawable->depth, screen); if (update) { ChangeGCVal changes[2]; changes[0].val = x_off; changes[1].val = y_off; ChangeGC(serverClient, gc, GCClipXOrigin|GCClipYOrigin, changes); (*gc->funcs->ChangeClip)(gc, CT_REGION, update, 0); } ValidateGC(drawable, gc); (*gc->ops->CopyArea)(&pixmap->drawable, drawable, gc, 0, 0, pixmap->drawable.width, pixmap->drawable.height, x_off, y_off); if (update) (*gc->funcs->ChangeClip)(gc, CT_NONE, NULL, 0); FreeScratchGC(gc); } void present_pixmap_idle(PixmapPtr pixmap, WindowPtr window, CARD32 serial, struct present_fence *present_fence) { if (present_fence) present_fence_set_triggered(present_fence); if (window) { DebugPresent(("\ti %08" PRIx32 "\n", pixmap ? pixmap->drawable.id : 0)); present_send_idle_notify(window, serial, pixmap, present_fence); } } struct pixmap_visit { PixmapPtr old; PixmapPtr new; }; static int present_set_tree_pixmap_visit(WindowPtr window, void *data) { struct pixmap_visit *visit = data; ScreenPtr screen = window->drawable.pScreen; if ((*screen->GetWindowPixmap)(window) != visit->old) return WT_DONTWALKCHILDREN; (*screen->SetWindowPixmap)(window, visit->new); return WT_WALKCHILDREN; } void present_set_tree_pixmap(WindowPtr window, PixmapPtr expected, PixmapPtr pixmap) { struct pixmap_visit visit; ScreenPtr screen = window->drawable.pScreen; visit.old = (*screen->GetWindowPixmap)(window); if (expected && visit.old != expected) return; visit.new = pixmap; if (visit.old == visit.new) return; TraverseTree(window, present_set_tree_pixmap_visit, &visit); } Bool present_can_window_flip(WindowPtr window) { ScreenPtr screen = window->drawable.pScreen; present_screen_priv_ptr screen_priv = present_screen_priv(screen); return screen_priv->can_window_flip(window); } void present_adjust_timings(uint32_t options, uint64_t *crtc_msc, uint64_t *target_msc, uint64_t divisor, uint64_t remainder) { /* Adjust target_msc to match modulus */ if (msc_is_equal_or_after(*crtc_msc, *target_msc)) { if (divisor != 0) { *target_msc = *crtc_msc - (*crtc_msc % divisor) + remainder; if (options & PresentOptionAsync) { if (msc_is_after(*crtc_msc, *target_msc)) *target_msc += divisor; } else { if (msc_is_equal_or_after(*crtc_msc, *target_msc)) *target_msc += divisor; } } else { *target_msc = *crtc_msc; if (!(options & PresentOptionAsync)) (*target_msc)++; } } } int present_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) { ScreenPtr screen = window->drawable.pScreen; present_screen_priv_ptr screen_priv = present_screen_priv(screen); return screen_priv->present_pixmap(window, pixmap, serial, valid, update, x_off, y_off, target_crtc, wait_fence, idle_fence, options, window_msc, divisor, remainder, notifies, num_notifies); } int present_notify_msc(WindowPtr window, CARD32 serial, uint64_t target_msc, uint64_t divisor, uint64_t remainder) { return present_pixmap(window, NULL, serial, NULL, NULL, 0, 0, NULL, NULL, NULL, divisor == 0 ? PresentOptionAsync : 0, target_msc, divisor, remainder, NULL, 0); }