| 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 | |
| 29 | /* |
| 30 | * Mark all pending notifies for 'window' as invalid when |
| 31 | * the window is destroyed |
| 32 | */ |
| 33 | |
| 34 | void |
| 35 | present_clear_window_notifies(WindowPtr window) |
| 36 | { |
| 37 | present_notify_ptr notify; |
| 38 | present_window_priv_ptr window_priv = present_window_priv(window); |
| 39 | |
| 40 | if (!window_priv) |
| 41 | return; |
| 42 | |
| 43 | xorg_list_for_each_entry(notify, &window_priv->notifies, window_list) { |
| 44 | notify->window = NULL; |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | /* |
| 49 | * 'notify' is being freed; remove it from the window's notify list |
| 50 | */ |
| 51 | |
| 52 | void |
| 53 | present_free_window_notify(present_notify_ptr notify) |
| 54 | { |
| 55 | xorg_list_del(¬ify->window_list); |
| 56 | } |
| 57 | |
| 58 | /* |
| 59 | * 'notify' is new; add it to the specified window |
| 60 | */ |
| 61 | |
| 62 | int |
| 63 | present_add_window_notify(present_notify_ptr notify) |
| 64 | { |
| 65 | WindowPtr window = notify->window; |
| 66 | present_window_priv_ptr window_priv = present_get_window_priv(window, TRUE); |
| 67 | |
| 68 | if (!window_priv) |
| 69 | return BadAlloc; |
| 70 | |
| 71 | xorg_list_add(¬ify->window_list, &window_priv->notifies); |
| 72 | return Success; |
| 73 | } |
| 74 | |
| 75 | int |
| 76 | present_create_notifies(ClientPtr client, int num_notifies, xPresentNotify *x_notifies, present_notify_ptr *p_notifies) |
| 77 | { |
| 78 | present_notify_ptr notifies; |
| 79 | int i; |
| 80 | int added = 0; |
| 81 | int status; |
| 82 | |
| 83 | notifies = calloc (num_notifies, sizeof (present_notify_rec)); |
| 84 | if (!notifies) |
| 85 | return BadAlloc; |
| 86 | |
| 87 | for (i = 0; i < num_notifies; i++) { |
| 88 | status = dixLookupWindow(¬ifies[i].window, x_notifies[i].window, client, DixGetAttrAccess); |
| 89 | if (status != Success) |
| 90 | goto bail; |
| 91 | |
| 92 | notifies[i].serial = x_notifies[i].serial; |
| 93 | status = present_add_window_notify(¬ifies[i]); |
| 94 | if (status != Success) |
| 95 | goto bail; |
| 96 | |
| 97 | added = i; |
| 98 | } |
| 99 | return Success; |
| 100 | |
| 101 | bail: |
| 102 | present_destroy_notifies(notifies, added); |
| 103 | return status; |
| 104 | } |
| 105 | |
| 106 | void |
| 107 | present_destroy_notifies(present_notify_ptr notifies, int num_notifies) |
| 108 | { |
| 109 | int i; |
| 110 | for (i = 0; i < num_notifies; i++) |
| 111 | present_free_window_notify(¬ifies[i]); |
| 112 | |
| 113 | free(notifies); |
| 114 | } |