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/*
* Copyright © 2014 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 "glamor_priv.h"
#include "misyncshm.h"
#include "misyncstr.h"
#if XSYNC
/*
* This whole file exists to wrap a sync fence trigger operation so
* that we can flush GL to provide serialization between the server
* and the shm fence client
*/
static DevPrivateKeyRec glamor_sync_fence_key;
struct glamor_sync_fence {
SyncFenceSetTriggeredFunc set_triggered;
};
static inline struct glamor_sync_fence *
glamor_get_sync_fence(SyncFence *fence)
{
return (struct glamor_sync_fence *) dixLookupPrivate(&fence->devPrivates, &glamor_sync_fence_key);
}
static void
glamor_sync_fence_set_triggered (SyncFence *fence)
{
ScreenPtr screen = fence->pScreen;
glamor_screen_private *glamor = glamor_get_screen_private(screen);
struct glamor_sync_fence *glamor_fence = glamor_get_sync_fence(fence);
/* Flush pending rendering operations */
glamor_make_current(glamor);
glFlush();
fence->funcs.SetTriggered = glamor_fence->set_triggered;
fence->funcs.SetTriggered(fence);
glamor_fence->set_triggered = fence->funcs.SetTriggered;
fence->funcs.SetTriggered = glamor_sync_fence_set_triggered;
}
static void
glamor_sync_create_fence(ScreenPtr screen,
SyncFence *fence,
Bool initially_triggered)
{
glamor_screen_private *glamor = glamor_get_screen_private(screen);
SyncScreenFuncsPtr screen_funcs = miSyncGetScreenFuncs(screen);
struct glamor_sync_fence *glamor_fence = glamor_get_sync_fence(fence);
screen_funcs->CreateFence = glamor->saved_procs.sync_screen_funcs.CreateFence;
screen_funcs->CreateFence(screen, fence, initially_triggered);
glamor->saved_procs.sync_screen_funcs.CreateFence = screen_funcs->CreateFence;
screen_funcs->CreateFence = glamor_sync_create_fence;
glamor_fence->set_triggered = fence->funcs.SetTriggered;
fence->funcs.SetTriggered = glamor_sync_fence_set_triggered;
}
#endif
Bool
glamor_sync_init(ScreenPtr screen)
{
#if XSYNC
glamor_screen_private *glamor = glamor_get_screen_private(screen);
SyncScreenFuncsPtr screen_funcs;
if (!dixPrivateKeyRegistered(&glamor_sync_fence_key)) {
if (!dixRegisterPrivateKey(&glamor_sync_fence_key,
PRIVATE_SYNC_FENCE,
sizeof (struct glamor_sync_fence)))
return FALSE;
}
#ifdef HAVE_XSHMFENCE
if (!miSyncShmScreenInit(screen))
return FALSE;
#else
if (!miSyncSetup(screen))
return FALSE;
#endif
screen_funcs = miSyncGetScreenFuncs(screen);
glamor->saved_procs.sync_screen_funcs.CreateFence = screen_funcs->CreateFence;
screen_funcs->CreateFence = glamor_sync_create_fence;
#endif
return TRUE;
}
void
glamor_sync_close(ScreenPtr screen)
{
#if XSYNC
glamor_screen_private *glamor = glamor_get_screen_private(screen);
SyncScreenFuncsPtr screen_funcs = miSyncGetScreenFuncs(screen);
if (screen_funcs)
screen_funcs->CreateFence = glamor->saved_procs.sync_screen_funcs.CreateFence;
#endif
}
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