You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
136 lines
4.1 KiB
C
136 lines
4.1 KiB
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"
|
|
#include <gcstruct.h>
|
|
#include <misync.h>
|
|
#include <misyncstr.h>
|
|
|
|
/*
|
|
* Wraps SyncFence objects so we can add a SyncTrigger to find out
|
|
* when the SyncFence gets destroyed and clean up appropriately
|
|
*/
|
|
|
|
struct present_fence {
|
|
SyncTrigger trigger;
|
|
SyncFence *fence;
|
|
void (*callback)(void *param);
|
|
void *param;
|
|
};
|
|
|
|
/*
|
|
* SyncTrigger callbacks
|
|
*/
|
|
static Bool
|
|
present_fence_sync_check_trigger(SyncTrigger *trigger, int64_t oldval)
|
|
{
|
|
struct present_fence *present_fence = container_of(trigger, struct present_fence, trigger);
|
|
|
|
return present_fence->callback != NULL;
|
|
}
|
|
|
|
static void
|
|
present_fence_sync_trigger_fired(SyncTrigger *trigger)
|
|
{
|
|
struct present_fence *present_fence = container_of(trigger, struct present_fence, trigger);
|
|
|
|
if (present_fence->callback)
|
|
(*present_fence->callback)(present_fence->param);
|
|
}
|
|
|
|
static void
|
|
present_fence_sync_counter_destroyed(SyncTrigger *trigger)
|
|
{
|
|
struct present_fence *present_fence = container_of(trigger, struct present_fence, trigger);
|
|
|
|
present_fence->fence = NULL;
|
|
}
|
|
|
|
struct present_fence *
|
|
present_fence_create(SyncFence *fence)
|
|
{
|
|
struct present_fence *present_fence;
|
|
|
|
present_fence = calloc (1, sizeof (struct present_fence));
|
|
if (!present_fence)
|
|
return NULL;
|
|
|
|
present_fence->fence = fence;
|
|
present_fence->trigger.pSync = (SyncObject *) fence;
|
|
present_fence->trigger.CheckTrigger = present_fence_sync_check_trigger;
|
|
present_fence->trigger.TriggerFired = present_fence_sync_trigger_fired;
|
|
present_fence->trigger.CounterDestroyed = present_fence_sync_counter_destroyed;
|
|
|
|
if (SyncAddTriggerToSyncObject(&present_fence->trigger) != Success) {
|
|
free (present_fence);
|
|
return NULL;
|
|
}
|
|
return present_fence;
|
|
}
|
|
|
|
void
|
|
present_fence_destroy(struct present_fence *present_fence)
|
|
{
|
|
if (present_fence) {
|
|
if (present_fence->fence)
|
|
SyncDeleteTriggerFromSyncObject(&present_fence->trigger);
|
|
free(present_fence);
|
|
}
|
|
}
|
|
|
|
void
|
|
present_fence_set_triggered(struct present_fence *present_fence)
|
|
{
|
|
if (present_fence)
|
|
if (present_fence->fence)
|
|
(*present_fence->fence->funcs.SetTriggered) (present_fence->fence);
|
|
}
|
|
|
|
Bool
|
|
present_fence_check_triggered(struct present_fence *present_fence)
|
|
{
|
|
if (!present_fence)
|
|
return TRUE;
|
|
if (!present_fence->fence)
|
|
return TRUE;
|
|
return (*present_fence->fence->funcs.CheckTriggered)(present_fence->fence);
|
|
}
|
|
|
|
void
|
|
present_fence_set_callback(struct present_fence *present_fence,
|
|
void (*callback) (void *param),
|
|
void *param)
|
|
{
|
|
present_fence->callback = callback;
|
|
present_fence->param = param;
|
|
}
|
|
|
|
XID
|
|
present_fence_id(struct present_fence *present_fence)
|
|
{
|
|
if (!present_fence)
|
|
return None;
|
|
if (!present_fence->fence)
|
|
return None;
|
|
return present_fence->fence->sync.id;
|
|
}
|