diff options
Diffstat (limited to 'xorg-server/present/present_screen.c')
| -rw-r--r-- | xorg-server/present/present_screen.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/xorg-server/present/present_screen.c b/xorg-server/present/present_screen.c new file mode 100644 index 000000000..50b2b2d23 --- /dev/null +++ b/xorg-server/present/present_screen.c @@ -0,0 +1,231 @@ +/* + * 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" + +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); + 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); + + present_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) +{ + 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) { + present_abort_vblank(window->drawable.pScreen, vblank->crtc, vblank->event_id, vblank->target_msc); + present_vblank_destroy(vblank); + } +} + +/* + * Clean up any pending or current flips for this window + */ +static void +present_clear_window_flip(WindowPtr window) +{ + ScreenPtr screen = window->drawable.pScreen; + present_screen_priv_ptr screen_priv = present_screen_priv(screen); + present_vblank_ptr flip_pending = screen_priv->flip_pending; + + if (flip_pending && flip_pending->window == window) { + assert (flip_pending->abort_flip); + flip_pending->window_destroyed = TRUE; + } + if (screen_priv->flip_window == window) + screen_priv->flip_window = NULL; +} + +/* + * 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); + + if (window_priv) { + present_clear_window_notifies(window); + present_free_events(window); + present_free_window_vblank(window); + present_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); + + 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); + + present_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); +} + +/* + * Initialize a screen for use with present + */ +int +present_screen_init(ScreenPtr screen, present_screen_info_ptr info) +{ + if (!dixRegisterPrivateKey(&present_screen_private_key, PRIVATE_SCREEN, 0)) + return FALSE; + + if (!dixRegisterPrivateKey(&present_window_private_key, PRIVATE_WINDOW, 0)) + return FALSE; + + if (!present_screen_priv(screen)) { + present_screen_priv_ptr screen_priv = calloc(1, sizeof (present_screen_priv_rec)); + if (!screen_priv) + return FALSE; + + 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); + + screen_priv->info = info; + + dixSetPrivate(&screen->devPrivates, &present_screen_private_key, screen_priv); + + present_fake_screen_init(screen); + } + + return TRUE; +} + +/* + * Initialize the present extension + */ +void +present_extension_init(void) +{ + ExtensionEntry *extension; + int i; + + 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"); +} |