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