xserver pixman git update 7-12-2010

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;

+}