Edit
IABSD.fr/xenocara/xserver/present/present_screen.c
matthieu
- xserver/present/present_screen.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. */ #include "present_priv.h" int present_request; DevPrivateKeyRec present_screen_private_key; DevPrivateKeyRec present_window_private_key; /* * Get a pointer to a present window private, creating if necessary */ present_window_priv_ptr present_get_window_priv(WindowPtr window, Bool create) { present_window_priv_ptr window_priv = present_window_priv(window); if (!create || window_priv != NULL) return window_priv; window_priv = calloc (1, sizeof (present_window_priv_rec)); if (!window_priv) return NULL; xorg_list_init(&window_priv->vblank); xorg_list_init(&window_priv->notifies); window_priv->window = window; window_priv->crtc = PresentCrtcNeverSet; dixSetPrivate(&window->devPrivates, &present_window_private_key, window_priv); return window_priv; } /* * Hook the close screen function to clean up our screen private */ static Bool present_close_screen(ScreenPtr screen) { present_screen_priv_ptr screen_priv = present_screen_priv(screen); if (screen_priv->flip_destroy) screen_priv->flip_destroy(screen); unwrap(screen_priv, screen, CloseScreen); (*screen->CloseScreen) (screen); free(screen_priv); return TRUE; } /* * Free any queued presentations for this window */ static void present_free_window_vblank(WindowPtr window) { ScreenPtr screen = window->drawable.pScreen; present_screen_priv_ptr screen_priv = present_screen_priv(screen); present_window_priv_ptr window_priv = present_window_priv(window); present_vblank_ptr vblank, tmp; xorg_list_for_each_entry_safe(vblank, tmp, &window_priv->vblank, window_list) { screen_priv->abort_vblank(window->drawable.pScreen, window, vblank->crtc, vblank->event_id, vblank->target_msc); present_vblank_destroy(vblank); } } /* * Hook the close window function to clean up our window private */ static Bool present_destroy_window(WindowPtr window) { Bool ret; ScreenPtr screen = window->drawable.pScreen; present_screen_priv_ptr screen_priv = present_screen_priv(screen); present_window_priv_ptr window_priv = present_window_priv(window); present_send_config_notify(window, window->drawable.x, window->drawable.y, window->drawable.width, window->drawable.height, window->borderWidth, window->nextSib, PresentWindowDestroyed); if (window_priv) { present_clear_window_notifies(window); present_free_events(window); present_free_window_vblank(window); screen_priv->clear_window_flip(window); free(window_priv); } unwrap(screen_priv, screen, DestroyWindow); if (screen->DestroyWindow) ret = screen->DestroyWindow (window); else ret = TRUE; wrap(screen_priv, screen, DestroyWindow, present_destroy_window); return ret; } /* * Hook the config notify screen function to deliver present config notify events */ static int present_config_notify(WindowPtr window, int x, int y, int w, int h, int bw, WindowPtr sibling) { int ret; ScreenPtr screen = window->drawable.pScreen; present_screen_priv_ptr screen_priv = present_screen_priv(screen); present_send_config_notify(window, x, y, w, h, bw, sibling, 0); unwrap(screen_priv, screen, ConfigNotify); if (screen->ConfigNotify) ret = screen->ConfigNotify (window, x, y, w, h, bw, sibling); else ret = 0; wrap(screen_priv, screen, ConfigNotify, present_config_notify); return ret; } /* * Hook the clip notify screen function to un-flip as necessary */ static void present_clip_notify(WindowPtr window, int dx, int dy) { ScreenPtr screen = window->drawable.pScreen; present_screen_priv_ptr screen_priv = present_screen_priv(screen); screen_priv->check_flip_window(window); unwrap(screen_priv, screen, ClipNotify) if (screen->ClipNotify) screen->ClipNotify (window, dx, dy); wrap(screen_priv, screen, ClipNotify, present_clip_notify); } Bool present_screen_register_priv_keys(void) { if (!dixRegisterPrivateKey(&present_screen_private_key, PRIVATE_SCREEN, 0)) return FALSE; if (!dixRegisterPrivateKey(&present_window_private_key, PRIVATE_WINDOW, 0)) return FALSE; return TRUE; } present_screen_priv_ptr present_screen_priv_init(ScreenPtr screen) { present_screen_priv_ptr screen_priv; screen_priv = calloc(1, sizeof (present_screen_priv_rec)); if (!screen_priv) return NULL; wrap(screen_priv, screen, CloseScreen, present_close_screen); wrap(screen_priv, screen, DestroyWindow, present_destroy_window); wrap(screen_priv, screen, ConfigNotify, present_config_notify); wrap(screen_priv, screen, ClipNotify, present_clip_notify); dixSetPrivate(&screen->devPrivates, &present_screen_private_key, screen_priv); return screen_priv; } /* * Initialize a screen for use with present in default screen flip mode (scmd) */ int present_screen_init(ScreenPtr screen, present_screen_info_ptr info) { if (!present_screen_register_priv_keys()) return FALSE; if (!present_screen_priv(screen)) { present_screen_priv_ptr screen_priv = present_screen_priv_init(screen); if (!screen_priv) return FALSE; screen_priv->info = info; present_scmd_init_mode_hooks(screen_priv); present_fake_screen_init(screen); } return TRUE; } /* * Initialize the present extension */ void present_extension_init(void) { ExtensionEntry *extension; int i; #ifdef PANORAMIX if (!noPanoramiXExtension) return; #endif extension = AddExtension(PRESENT_NAME, PresentNumberEvents, PresentNumberErrors, proc_present_dispatch, sproc_present_dispatch, NULL, StandardMinorOpcode); if (!extension) goto bail; present_request = extension->base; if (!present_init()) goto bail; if (!present_event_init()) goto bail; for (i = 0; i < screenInfo.numScreens; i++) { if (!present_screen_init(screenInfo.screens[i], NULL)) goto bail; } return; bail: FatalError("Cannot initialize Present extension"); }