| 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 | #include <gcstruct.h> |
| 29 | #include <misync.h> |
| 30 | #include <misyncstr.h> |
| 31 | |
| 32 | /* |
| 33 | * Wraps SyncFence objects so we can add a SyncTrigger to find out |
| 34 | * when the SyncFence gets destroyed and clean up appropriately |
| 35 | */ |
| 36 | |
| 37 | struct present_fence { |
| 38 | SyncTrigger trigger; |
| 39 | SyncFence *fence; |
| 40 | void (*callback)(void *param); |
| 41 | void *param; |
| 42 | }; |
| 43 | |
| 44 | /* |
| 45 | * SyncTrigger callbacks |
| 46 | */ |
| 47 | static Bool |
| 48 | present_fence_sync_check_trigger(SyncTrigger *trigger, XSyncValue oldval) |
| 49 | { |
| 50 | struct present_fence *present_fence = container_of(trigger, struct present_fence, trigger); |
| 51 | |
| 52 | return present_fence->callback != NULL; |
| 53 | } |
| 54 | |
| 55 | static void |
| 56 | present_fence_sync_trigger_fired(SyncTrigger *trigger) |
| 57 | { |
| 58 | struct present_fence *present_fence = container_of(trigger, struct present_fence, trigger); |
| 59 | |
| 60 | if (present_fence->callback) |
| 61 | (*present_fence->callback)(present_fence->param); |
| 62 | } |
| 63 | |
| 64 | static void |
| 65 | present_fence_sync_counter_destroyed(SyncTrigger *trigger) |
| 66 | { |
| 67 | struct present_fence *present_fence = container_of(trigger, struct present_fence, trigger); |
| 68 | |
| 69 | present_fence->fence = NULL; |
| 70 | } |
| 71 | |
| 72 | struct present_fence * |
| 73 | present_fence_create(SyncFence *fence) |
| 74 | { |
| 75 | struct present_fence *present_fence; |
| 76 | |
| 77 | present_fence = calloc (1, sizeof (struct present_fence)); |
| 78 | if (!present_fence) |
| 79 | return NULL; |
| 80 | |
| 81 | present_fence->fence = fence; |
| 82 | present_fence->trigger.pSync = (SyncObject *) fence; |
| 83 | present_fence->trigger.CheckTrigger = present_fence_sync_check_trigger; |
| 84 | present_fence->trigger.TriggerFired = present_fence_sync_trigger_fired; |
| 85 | present_fence->trigger.CounterDestroyed = present_fence_sync_counter_destroyed; |
| 86 | |
| 87 | if (SyncAddTriggerToSyncObject(&present_fence->trigger) != Success) { |
| 88 | free (present_fence); |
| 89 | return NULL; |
| 90 | } |
| 91 | return present_fence; |
| 92 | } |
| 93 | |
| 94 | void |
| 95 | present_fence_destroy(struct present_fence *present_fence) |
| 96 | { |
| 97 | if (present_fence) { |
| 98 | if (present_fence->fence) |
| 99 | SyncDeleteTriggerFromSyncObject(&present_fence->trigger); |
| 100 | free(present_fence); |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | void |
| 105 | present_fence_set_triggered(struct present_fence *present_fence) |
| 106 | { |
| 107 | if (present_fence) |
| 108 | if (present_fence->fence) |
| 109 | (*present_fence->fence->funcs.SetTriggered) (present_fence->fence); |
| 110 | } |
| 111 | |
| 112 | Bool |
| 113 | present_fence_check_triggered(struct present_fence *present_fence) |
| 114 | { |
| 115 | if (!present_fence) |
| 116 | return TRUE; |
| 117 | if (!present_fence->fence) |
| 118 | return TRUE; |
| 119 | return (*present_fence->fence->funcs.CheckTriggered)(present_fence->fence); |
| 120 | } |
| 121 | |
| 122 | void |
| 123 | present_fence_set_callback(struct present_fence *present_fence, |
| 124 | void (*callback) (void *param), |
| 125 | void *param) |
| 126 | { |
| 127 | present_fence->callback = callback; |
| 128 | present_fence->param = param; |
| 129 | } |
| 130 | |
| 131 | XID |
| 132 | present_fence_id(struct present_fence *present_fence) |
| 133 | { |
| 134 | if (!present_fence) |
| 135 | return None; |
| 136 | if (!present_fence->fence) |
| 137 | return None; |
| 138 | return present_fence->fence->sync.id; |
| 139 | } |