137 lines
4.1 KiB
C
137 lines
4.1 KiB
C
/*
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* Copyright © 2013 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include <dix-config.h>
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#include "present_priv.h"
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#include <gcstruct.h>
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#include <misync.h>
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#include <misyncstr.h>
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/*
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* Wraps SyncFence objects so we can add a SyncTrigger to find out
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* when the SyncFence gets destroyed and clean up appropriately
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*/
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struct present_fence {
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SyncTrigger trigger;
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SyncFence *fence;
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void (*callback)(void *param);
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void *param;
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};
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/*
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* SyncTrigger callbacks
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*/
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static Bool
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present_fence_sync_check_trigger(SyncTrigger *trigger, int64_t oldval)
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{
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struct present_fence *present_fence = container_of(trigger, struct present_fence, trigger);
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return present_fence->callback != NULL;
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}
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static void
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present_fence_sync_trigger_fired(SyncTrigger *trigger)
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{
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struct present_fence *present_fence = container_of(trigger, struct present_fence, trigger);
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if (present_fence->callback)
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(*present_fence->callback)(present_fence->param);
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}
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static void
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present_fence_sync_counter_destroyed(SyncTrigger *trigger)
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{
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struct present_fence *present_fence = container_of(trigger, struct present_fence, trigger);
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present_fence->fence = NULL;
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}
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struct present_fence *
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present_fence_create(SyncFence *fence)
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{
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struct present_fence *present_fence;
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present_fence = calloc (1, sizeof (struct present_fence));
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if (!present_fence)
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return NULL;
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present_fence->fence = fence;
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present_fence->trigger.pSync = (SyncObject *) fence;
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present_fence->trigger.CheckTrigger = present_fence_sync_check_trigger;
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present_fence->trigger.TriggerFired = present_fence_sync_trigger_fired;
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present_fence->trigger.CounterDestroyed = present_fence_sync_counter_destroyed;
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if (SyncAddTriggerToSyncObject(&present_fence->trigger) != Success) {
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free (present_fence);
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return NULL;
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}
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return present_fence;
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}
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void
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present_fence_destroy(struct present_fence *present_fence)
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{
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if (present_fence) {
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if (present_fence->fence)
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SyncDeleteTriggerFromSyncObject(&present_fence->trigger);
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free(present_fence);
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}
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}
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void
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present_fence_set_triggered(struct present_fence *present_fence)
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{
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if (present_fence)
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if (present_fence->fence)
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(*present_fence->fence->funcs.SetTriggered) (present_fence->fence);
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}
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Bool
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present_fence_check_triggered(struct present_fence *present_fence)
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{
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if (!present_fence)
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return TRUE;
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if (!present_fence->fence)
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return TRUE;
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return (*present_fence->fence->funcs.CheckTriggered)(present_fence->fence);
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}
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void
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present_fence_set_callback(struct present_fence *present_fence,
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void (*callback) (void *param),
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void *param)
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{
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present_fence->callback = callback;
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present_fence->param = param;
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}
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XID
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present_fence_id(struct present_fence *present_fence)
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{
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if (!present_fence)
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return None;
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if (!present_fence->fence)
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return None;
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return present_fence->fence->sync.id;
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}
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