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/*
* 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"
#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, XSyncValue 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;
}
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