diff options
Diffstat (limited to 'xorg-server/miext/sync/misync.c')
| -rw-r--r-- | xorg-server/miext/sync/misync.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/xorg-server/miext/sync/misync.c b/xorg-server/miext/sync/misync.c new file mode 100644 index 000000000..932376cf0 --- /dev/null +++ b/xorg-server/miext/sync/misync.c @@ -0,0 +1,201 @@ +/*
+ * Copyright © 2010 NVIDIA Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "scrnintstr.h"
+#include "misync.h"
+#include "misyncstr.h"
+
+static DevPrivateKeyRec syncScreenPrivateKeyRec;
+static DevPrivateKey syncScreenPrivateKey = &syncScreenPrivateKeyRec;
+
+#define SYNC_SCREEN_PRIV(pScreen) \
+ (SyncScreenPrivPtr) dixLookupPrivate(&pScreen->devPrivates, \
+ syncScreenPrivateKey)
+
+typedef struct _syncScreenPriv {
+ /* Wrappable sync-specific screen functions */
+ SyncScreenFuncsRec funcs;
+
+ /* Wrapped screen functions */
+ CloseScreenProcPtr CloseScreen;
+} SyncScreenPrivRec, *SyncScreenPrivPtr;
+
+/* Default implementations of the sync screen functions */
+void
+miSyncScreenCreateFence(ScreenPtr pScreen, SyncFence* pFence,
+ Bool initially_triggered)
+{
+ (void)pScreen;
+
+ pFence->triggered = initially_triggered;
+}
+
+void miSyncScreenDestroyFence(ScreenPtr pScreen, SyncFence* pFence)
+{
+ (void)pScreen;
+ (void)pFence;
+}
+
+/* Default implementations of the per-object functions */
+static void
+miSyncFenceSetTriggered(SyncFence* pFence)
+{
+ pFence->triggered = TRUE;
+}
+
+static void
+miSyncFenceReset(SyncFence* pFence)
+{
+ pFence->triggered = FALSE;
+}
+
+static Bool
+miSyncFenceCheckTriggered(SyncFence* pFence)
+{
+ return pFence->triggered;
+}
+
+static void
+miSyncFenceAddTrigger(SyncTrigger* pTrigger)
+{
+ (void)pTrigger;
+
+ return;
+}
+
+static void
+miSyncFenceDeleteTrigger(SyncTrigger* pTrigger)
+{
+ (void)pTrigger;
+
+ return;
+}
+
+/* Machine independent portion of the fence sync object implementation */
+void
+miSyncInitFence(ScreenPtr pScreen, SyncFence* pFence, Bool initially_triggered)
+{
+ SyncScreenPrivPtr pScreenPriv = SYNC_SCREEN_PRIV(pScreen);
+ static const SyncFenceFuncsRec miSyncFenceFuncs = {
+ &miSyncFenceSetTriggered,
+ &miSyncFenceReset,
+ &miSyncFenceCheckTriggered,
+ &miSyncFenceAddTrigger,
+ &miSyncFenceDeleteTrigger
+ };
+
+ pFence->pScreen = pScreen;
+ pFence->funcs = miSyncFenceFuncs;
+
+ pScreenPriv->funcs.CreateFence(pScreen, pFence, initially_triggered);
+}
+
+void
+miSyncDestroyFence(SyncFence* pFence)
+{
+ ScreenPtr pScreen = pFence->pScreen;
+ SyncScreenPrivPtr pScreenPriv = SYNC_SCREEN_PRIV(pScreen);
+ SyncTriggerList *ptl, *pNext;
+
+ pFence->sync.beingDestroyed = TRUE;
+ /* tell all the fence's triggers that the counter has been destroyed */
+ for (ptl = pFence->sync.pTriglist; ptl; ptl = pNext)
+ {
+ (*ptl->pTrigger->CounterDestroyed)(ptl->pTrigger);
+ pNext = ptl->next;
+ free(ptl); /* destroy the trigger list as we go */
+ }
+
+ pScreenPriv->funcs.DestroyFence(pScreen, pFence);
+
+ dixFreeObjectWithPrivates(pFence, PRIVATE_SYNC_FENCE);
+}
+
+void
+miSyncTriggerFence(SyncFence* pFence)
+{
+ SyncTriggerList *ptl, *pNext;
+ CARD64 unused;
+
+ pFence->funcs.SetTriggered(pFence);
+
+ XSyncIntToValue(&unused, 0L);
+
+ /* run through triggers to see if any fired */
+ for (ptl = pFence->sync.pTriglist; ptl; ptl = pNext)
+ {
+ pNext = ptl->next;
+ if ((*ptl->pTrigger->CheckTrigger)(ptl->pTrigger, unused))
+ (*ptl->pTrigger->TriggerFired)(ptl->pTrigger);
+ }
+}
+
+SyncScreenFuncsPtr miSyncGetScreenFuncs(ScreenPtr pScreen)
+{
+ SyncScreenPrivPtr pScreenPriv = SYNC_SCREEN_PRIV(pScreen);
+
+ return &pScreenPriv->funcs;
+}
+
+static Bool
+SyncCloseScreen (int i, ScreenPtr pScreen)
+{
+ SyncScreenPrivPtr pScreenPriv = SYNC_SCREEN_PRIV(pScreen);
+
+ pScreen->CloseScreen = pScreenPriv->CloseScreen;
+ free(pScreenPriv);
+
+ return (*pScreen->CloseScreen) (i, pScreen);
+}
+
+Bool
+miSyncSetup(ScreenPtr pScreen)
+{
+ SyncScreenPrivPtr pScreenPriv;
+
+ static const SyncScreenFuncsRec miSyncScreenFuncs = {
+ &miSyncScreenCreateFence,
+ &miSyncScreenDestroyFence
+ };
+
+ if (dixPrivateKeyRegistered(syncScreenPrivateKey))
+ return TRUE;
+
+ if (!dixRegisterPrivateKey(syncScreenPrivateKey, PRIVATE_SCREEN,
+ sizeof(SyncScreenPrivRec)))
+ return FALSE;
+
+ pScreenPriv = SYNC_SCREEN_PRIV(pScreen);
+
+ pScreenPriv->funcs = miSyncScreenFuncs;
+
+ /* Wrap CloseScreen to clean up */
+ pScreenPriv->CloseScreen = pScreen->CloseScreen;
+ pScreen->CloseScreen = SyncCloseScreen;
+
+ return TRUE;
+}
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