xserver git update 15/5/2010

1 files changed, 496 insertions, 496 deletions

diff --git a/xorg-server/randr/randr.c b/xorg-server/randr/randr.c
index b63a7f22e..b843f588d 100644
--- a/xorg-server/randr/randr.c
+++ b/xorg-server/randr/randr.c
@@ -1,496 +1,496 @@
-/*
- * Copyright © 2000 Compaq Computer Corporation
- * Copyright © 2002 Hewlett-Packard Company
- * Copyright © 2006 Intel Corporation
- *
- * 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.
- *
- * Author:  Jim Gettys, Hewlett-Packard Company, Inc.
- *	    Keith Packard, Intel Corporation
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include "randrstr.h"
-
-/* From render.h */
-#ifndef SubPixelUnknown
-#define SubPixelUnknown 0
-#endif
-
-#define RR_VALIDATE
-static int	RRNScreens;
-
-#define wrap(priv,real,mem,func) {\
-    priv->mem = real->mem; \
-    real->mem = func; \
-}
-
-#define unwrap(priv,real,mem) {\
-    real->mem = priv->mem; \
-}
-
-static int ProcRRDispatch (ClientPtr pClient);
-static int SProcRRDispatch (ClientPtr pClient);
-
-int	RREventBase;
-int	RRErrorBase;
-RESTYPE RRClientType, RREventType; /* resource types for event masks */
-static int RRClientPrivateKeyIndex;
-DevPrivateKey RRClientPrivateKey = &RRClientPrivateKeyIndex;
-
-static int rrPrivKeyIndex;
-DevPrivateKey rrPrivKey = &rrPrivKeyIndex;
-
-static void
-RRClientCallback (CallbackListPtr	*list,
-		  pointer		closure,
-		  pointer		data)
-{
-    NewClientInfoRec	*clientinfo = (NewClientInfoRec *) data;
-    ClientPtr		pClient = clientinfo->client;
-    rrClientPriv(pClient);
-    RRTimesPtr		pTimes = (RRTimesPtr) (pRRClient + 1);
-    int			i;
-
-    pRRClient->major_version = 0;
-    pRRClient->minor_version = 0;
-    for (i = 0; i < screenInfo.numScreens; i++)
-    {
-	ScreenPtr   pScreen = screenInfo.screens[i];
-	rrScrPriv(pScreen);
-
-	if (pScrPriv)
-	{
-	    pTimes[i].setTime = pScrPriv->lastSetTime;
-	    pTimes[i].configTime = pScrPriv->lastConfigTime;
-	}
-    }
-}
-
-static Bool
-RRCloseScreen (int i, ScreenPtr pScreen)
-{
-    rrScrPriv(pScreen);
-    int		    j;
-
-    unwrap (pScrPriv, pScreen, CloseScreen);
-    for (j = pScrPriv->numCrtcs - 1; j >= 0; j--)
-	RRCrtcDestroy (pScrPriv->crtcs[j]);
-    for (j = pScrPriv->numOutputs - 1; j >= 0; j--)
-	RROutputDestroy (pScrPriv->outputs[j]);
-    
-    xfree (pScrPriv->crtcs);
-    xfree (pScrPriv->outputs);
-    xfree (pScrPriv);
-    RRNScreens -= 1;	/* ok, one fewer screen with RandR running */
-    return (*pScreen->CloseScreen) (i, pScreen);    
-}
-
-static void
-SRRScreenChangeNotifyEvent(xRRScreenChangeNotifyEvent *from,
-			   xRRScreenChangeNotifyEvent *to)
-{
-    to->type = from->type;
-    to->rotation = from->rotation;
-    cpswaps(from->sequenceNumber, to->sequenceNumber);
-    cpswapl(from->timestamp, to->timestamp);
-    cpswapl(from->configTimestamp, to->configTimestamp);
-    cpswapl(from->root, to->root);
-    cpswapl(from->window, to->window);
-    cpswaps(from->sizeID, to->sizeID);
-    cpswaps(from->subpixelOrder, to->subpixelOrder);
-    cpswaps(from->widthInPixels, to->widthInPixels);
-    cpswaps(from->heightInPixels, to->heightInPixels);
-    cpswaps(from->widthInMillimeters, to->widthInMillimeters);
-    cpswaps(from->heightInMillimeters, to->heightInMillimeters);
-}
-
-static void
-SRRCrtcChangeNotifyEvent(xRRCrtcChangeNotifyEvent *from,
-			 xRRCrtcChangeNotifyEvent *to)
-{
-    to->type = from->type;
-    to->subCode = from->subCode;
-    cpswaps(from->sequenceNumber, to->sequenceNumber);
-    cpswapl(from->timestamp, to->timestamp);
-    cpswapl(from->window, to->window);
-    cpswapl(from->crtc, to->crtc);
-    cpswapl(from->mode, to->mode);
-    cpswaps(from->rotation, to->rotation);
-    /* pad1 */
-    cpswaps(from->x, to->x);
-    cpswaps(from->y, to->y);
-    cpswaps(from->width, to->width);
-    cpswaps(from->height, to->height);
-}
-
-static void
-SRROutputChangeNotifyEvent(xRROutputChangeNotifyEvent *from,
-			   xRROutputChangeNotifyEvent *to)
-{
-    to->type = from->type;
-    to->subCode = from->subCode;
-    cpswaps(from->sequenceNumber, to->sequenceNumber);
-    cpswapl(from->timestamp, to->timestamp);
-    cpswapl(from->configTimestamp, to->configTimestamp);
-    cpswapl(from->window, to->window);
-    cpswapl(from->output, to->output);
-    cpswapl(from->crtc, to->crtc);
-    cpswapl(from->mode, to->mode);
-    cpswaps(from->rotation, to->rotation);
-    to->connection = from->connection;
-    to->subpixelOrder = from->subpixelOrder;
-}
-
-static void
-SRROutputPropertyNotifyEvent(xRROutputPropertyNotifyEvent *from,
-			     xRROutputPropertyNotifyEvent *to)
-{
-    to->type = from->type;
-    to->subCode = from->subCode;
-    cpswaps(from->sequenceNumber, to->sequenceNumber);
-    cpswapl(from->window, to->window);
-    cpswapl(from->output, to->output);
-    cpswapl(from->atom, to->atom);
-    cpswapl(from->timestamp, to->timestamp);
-    to->state = from->state;
-    /* pad1 */
-    /* pad2 */
-    /* pad3 */
-    /* pad4 */
-}
-
-static void
-SRRNotifyEvent (xEvent *from,
-		xEvent *to)
-{
-    switch (from->u.u.detail) {
-    case RRNotify_CrtcChange:
-	SRRCrtcChangeNotifyEvent ((xRRCrtcChangeNotifyEvent *) from,
-				  (xRRCrtcChangeNotifyEvent *) to);
-	break;
-    case RRNotify_OutputChange:
-	SRROutputChangeNotifyEvent ((xRROutputChangeNotifyEvent *) from,
-				    (xRROutputChangeNotifyEvent *) to);
-	break;
-    case RRNotify_OutputProperty:
-	SRROutputPropertyNotifyEvent ((xRROutputPropertyNotifyEvent *) from,
-				      (xRROutputPropertyNotifyEvent *) to);
-	break;
-    default:
-	break;
-    }
-}
-
-static int RRGeneration;
-
-Bool RRInit (void)
-{
-    if (RRGeneration != serverGeneration)
-    {
-	if (!RRModeInit ())
-	    return FALSE;
-	if (!RRCrtcInit ())
-	    return FALSE;
-	if (!RROutputInit ())
-	    return FALSE;
-	RRGeneration = serverGeneration;
-    }
-    return TRUE;
-}
-
-Bool RRScreenInit(ScreenPtr pScreen)
-{
-    rrScrPrivPtr   pScrPriv;
-
-    if (!RRInit ())
-	return FALSE;
-
-    pScrPriv = (rrScrPrivPtr) xcalloc (1, sizeof (rrScrPrivRec));
-    if (!pScrPriv)
-	return FALSE;
-
-    SetRRScreen(pScreen, pScrPriv);
-
-    /*
-     * Calling function best set these function vectors
-     */
-    pScrPriv->rrGetInfo = 0;
-    pScrPriv->maxWidth = pScrPriv->minWidth = pScreen->width;
-    pScrPriv->maxHeight = pScrPriv->minHeight = pScreen->height;
-    
-    pScrPriv->width = pScreen->width;
-    pScrPriv->height = pScreen->height;
-    pScrPriv->mmWidth = pScreen->mmWidth;
-    pScrPriv->mmHeight = pScreen->mmHeight;
-#if RANDR_12_INTERFACE
-    pScrPriv->rrScreenSetSize = NULL;
-    pScrPriv->rrCrtcSet = NULL;
-    pScrPriv->rrCrtcSetGamma = NULL;
-#endif
-#if RANDR_10_INTERFACE    
-    pScrPriv->rrSetConfig = 0;
-    pScrPriv->rotations = RR_Rotate_0;
-    pScrPriv->reqWidth = pScreen->width;
-    pScrPriv->reqHeight = pScreen->height;
-    pScrPriv->nSizes = 0;
-    pScrPriv->pSizes = NULL;
-    pScrPriv->rotation = RR_Rotate_0;
-    pScrPriv->rate = 0;
-    pScrPriv->size = 0;
-#endif
-    
-    /*
-     * This value doesn't really matter -- any client must call
-     * GetScreenInfo before reading it which will automatically update
-     * the time
-     */
-    pScrPriv->lastSetTime = currentTime;
-    pScrPriv->lastConfigTime = currentTime;
-    
-    wrap (pScrPriv, pScreen, CloseScreen, RRCloseScreen);
-
-    pScrPriv->numOutputs = 0;
-    pScrPriv->outputs = NULL;
-    pScrPriv->numCrtcs = 0;
-    pScrPriv->crtcs = NULL;
-    
-    RRNScreens += 1;	/* keep count of screens that implement randr */
-    return TRUE;
-}
-
-/*ARGSUSED*/
-static int
-RRFreeClient (pointer data, XID id)
-{
-    RREventPtr   pRREvent;
-    WindowPtr	    pWin;
-    RREventPtr   *pHead, pCur, pPrev;
-
-    pRREvent = (RREventPtr) data;
-    pWin = pRREvent->window;
-    dixLookupResourceByType((pointer *)&pHead, pWin->drawable.id,
-			    RREventType, serverClient, DixDestroyAccess);
-    if (pHead) {
-	pPrev = 0;
-	for (pCur = *pHead; pCur && pCur != pRREvent; pCur=pCur->next)
-	    pPrev = pCur;
-	if (pCur)
-	{
-	    if (pPrev)
-	    	pPrev->next = pRREvent->next;
-	    else
-	    	*pHead = pRREvent->next;
-	}
-    }
-    xfree ((pointer) pRREvent);
-    return 1;
-}
-
-/*ARGSUSED*/
-static int
-RRFreeEvents (pointer data, XID id)
-{
-    RREventPtr   *pHead, pCur, pNext;
-
-    pHead = (RREventPtr *) data;
-    for (pCur = *pHead; pCur; pCur = pNext) {
-	pNext = pCur->next;
-	FreeResource (pCur->clientResource, RRClientType);
-	xfree ((pointer) pCur);
-    }
-    xfree ((pointer) pHead);
-    return 1;
-}
-
-void
-RRExtensionInit (void)
-{
-    ExtensionEntry *extEntry;
-
-    if (RRNScreens == 0) return;
-
-    if (!dixRequestPrivate(RRClientPrivateKey,
-				sizeof (RRClientRec) +
-				screenInfo.numScreens * sizeof (RRTimesRec)))
-	return;
-    if (!AddCallback (&ClientStateCallback, RRClientCallback, 0))
-	return;
-
-    RRClientType = CreateNewResourceType(RRFreeClient, "RandRClient");
-    if (!RRClientType)
-	return;
-    RREventType = CreateNewResourceType(RRFreeEvents, "RandREvent");
-    if (!RREventType)
-	return;
-    extEntry = AddExtension (RANDR_NAME, RRNumberEvents, RRNumberErrors,
-			     ProcRRDispatch, SProcRRDispatch,
-			     NULL, StandardMinorOpcode);
-    if (!extEntry)
-	return;
-    RRErrorBase = extEntry->errorBase;
-    RREventBase = extEntry->eventBase;
-    EventSwapVector[RREventBase + RRScreenChangeNotify] = (EventSwapPtr) 
-	SRRScreenChangeNotifyEvent;
-    EventSwapVector[RREventBase + RRNotify] = (EventSwapPtr)
-	SRRNotifyEvent;
-#ifdef PANORAMIX
-    RRXineramaExtensionInit();
-#endif
-}
-
-static int
-TellChanged (WindowPtr pWin, pointer value)
-{
-    RREventPtr			*pHead, pRREvent;
-    ClientPtr			client;
-    ScreenPtr			pScreen = pWin->drawable.pScreen;
-    rrScrPriv(pScreen);
-    int				i;
-
-    dixLookupResourceByType((pointer *)&pHead, pWin->drawable.id,
-			    RREventType, serverClient, DixReadAccess);
-    if (!pHead)
-	return WT_WALKCHILDREN;
-
-    for (pRREvent = *pHead; pRREvent; pRREvent = pRREvent->next) 
-    {
-	client = pRREvent->client;
-	if (client == serverClient || client->clientGone)
-	    continue;
-
-	if (pRREvent->mask & RRScreenChangeNotifyMask)
-	    RRDeliverScreenEvent (client, pWin, pScreen);
-	
-	if (pRREvent->mask & RRCrtcChangeNotifyMask)
-	{
-	    for (i = 0; i < pScrPriv->numCrtcs; i++)
-	    {
-		RRCrtcPtr   crtc = pScrPriv->crtcs[i];
-		if (crtc->changed)
-		    RRDeliverCrtcEvent (client, pWin, crtc);
-	    }
-	}
-	
-	if (pRREvent->mask & RROutputChangeNotifyMask)
-	{
-	    for (i = 0; i < pScrPriv->numOutputs; i++)
-	    {
-		RROutputPtr   output = pScrPriv->outputs[i];
-		if (output->changed)
-		    RRDeliverOutputEvent (client, pWin, output);
-	    }
-	}
-    }
-    return WT_WALKCHILDREN;
-}
-
-/*
- * Something changed; send events and adjust pointer position
- */
-void
-RRTellChanged (ScreenPtr pScreen)
-{
-    rrScrPriv (pScreen);
-    int i;
-    
-    if (pScrPriv->changed)
-    {
-	UpdateCurrentTime ();
-	if (pScrPriv->configChanged)
-	{
-	    pScrPriv->lastConfigTime = currentTime;
-	    pScrPriv->configChanged = FALSE;
-	}
-	pScrPriv->changed = FALSE;
-	WalkTree (pScreen, TellChanged, (pointer) pScreen);
-	for (i = 0; i < pScrPriv->numOutputs; i++)
-	    pScrPriv->outputs[i]->changed = FALSE;
-	for (i = 0; i < pScrPriv->numCrtcs; i++)
-	    pScrPriv->crtcs[i]->changed = FALSE;
-	if (pScrPriv->layoutChanged)
-	{
-	    pScrPriv->layoutChanged = FALSE;
-	    RRPointerScreenConfigured (pScreen);
-	    RRSendConfigNotify (pScreen);
-	}
-    }
-}
-
-/*
- * Return the first output which is connected to an active CRTC
- * Used in emulating 1.0 behaviour
- */
-RROutputPtr
-RRFirstOutput (ScreenPtr pScreen)
-{
-    rrScrPriv(pScreen);
-    RROutputPtr		    output;
-    int	i, j;
-    
-    if (pScrPriv->primaryOutput && pScrPriv->primaryOutput->crtc)
-	return pScrPriv->primaryOutput;
-
-    for (i = 0; i < pScrPriv->numCrtcs; i++)
-    {
-	RRCrtcPtr   crtc = pScrPriv->crtcs[i];
-	for (j = 0; j < pScrPriv->numOutputs; j++)
-	{
-	    output = pScrPriv->outputs[j];
-	    if (output->crtc == crtc)
-		return output;
-	}
-    }
-    return NULL;
-}
-
-CARD16
-RRVerticalRefresh (xRRModeInfo *mode)
-{
-    CARD32  refresh;
-    CARD32  dots = mode->hTotal * mode->vTotal;
-    if (!dots)
-	return 0;
-    refresh = (mode->dotClock + dots/2) / dots;
-    if (refresh > 0xffff)
-	refresh = 0xffff;
-    return (CARD16) refresh;
-}
-
-static int
-ProcRRDispatch (ClientPtr client)
-{
-    REQUEST(xReq);
-    if (stuff->data >= RRNumberRequests || !ProcRandrVector[stuff->data])
-	return BadRequest;
-    return (*ProcRandrVector[stuff->data]) (client);
-}
-
-static int
-SProcRRDispatch (ClientPtr client)
-{
-    REQUEST(xReq);
-    if (stuff->data >= RRNumberRequests || !ProcRandrVector[stuff->data])
-	return BadRequest;
-    return (*SProcRandrVector[stuff->data]) (client);
-}
-
+/*

+ * Copyright © 2000 Compaq Computer Corporation

+ * Copyright © 2002 Hewlett-Packard Company

+ * Copyright © 2006 Intel Corporation

+ *

+ * 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.

+ *

+ * Author:  Jim Gettys, Hewlett-Packard Company, Inc.

+ *	    Keith Packard, Intel Corporation

+ */

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include "randrstr.h"

+

+/* From render.h */

+#ifndef SubPixelUnknown

+#define SubPixelUnknown 0

+#endif

+

+#define RR_VALIDATE

+static int	RRNScreens;

+

+#define wrap(priv,real,mem,func) {\

+    priv->mem = real->mem; \

+    real->mem = func; \

+}

+

+#define unwrap(priv,real,mem) {\

+    real->mem = priv->mem; \

+}

+

+static int ProcRRDispatch (ClientPtr pClient);

+static int SProcRRDispatch (ClientPtr pClient);

+

+int	RREventBase;

+int	RRErrorBase;

+RESTYPE RRClientType, RREventType; /* resource types for event masks */

+static int RRClientPrivateKeyIndex;

+DevPrivateKey RRClientPrivateKey = &RRClientPrivateKeyIndex;

+

+static int rrPrivKeyIndex;

+DevPrivateKey rrPrivKey = &rrPrivKeyIndex;

+

+static void

+RRClientCallback (CallbackListPtr	*list,

+		  pointer		closure,

+		  pointer		data)

+{

+    NewClientInfoRec	*clientinfo = (NewClientInfoRec *) data;

+    ClientPtr		pClient = clientinfo->client;

+    rrClientPriv(pClient);

+    RRTimesPtr		pTimes = (RRTimesPtr) (pRRClient + 1);

+    int			i;

+

+    pRRClient->major_version = 0;

+    pRRClient->minor_version = 0;

+    for (i = 0; i < screenInfo.numScreens; i++)

+    {

+	ScreenPtr   pScreen = screenInfo.screens[i];

+	rrScrPriv(pScreen);

+

+	if (pScrPriv)

+	{

+	    pTimes[i].setTime = pScrPriv->lastSetTime;

+	    pTimes[i].configTime = pScrPriv->lastConfigTime;

+	}

+    }

+}

+

+static Bool

+RRCloseScreen (int i, ScreenPtr pScreen)

+{

+    rrScrPriv(pScreen);

+    int		    j;

+

+    unwrap (pScrPriv, pScreen, CloseScreen);

+    for (j = pScrPriv->numCrtcs - 1; j >= 0; j--)

+	RRCrtcDestroy (pScrPriv->crtcs[j]);

+    for (j = pScrPriv->numOutputs - 1; j >= 0; j--)

+	RROutputDestroy (pScrPriv->outputs[j]);

+    

+    free(pScrPriv->crtcs);

+    free(pScrPriv->outputs);

+    free(pScrPriv);

+    RRNScreens -= 1;	/* ok, one fewer screen with RandR running */

+    return (*pScreen->CloseScreen) (i, pScreen);    

+}

+

+static void

+SRRScreenChangeNotifyEvent(xRRScreenChangeNotifyEvent *from,

+			   xRRScreenChangeNotifyEvent *to)

+{

+    to->type = from->type;

+    to->rotation = from->rotation;

+    cpswaps(from->sequenceNumber, to->sequenceNumber);

+    cpswapl(from->timestamp, to->timestamp);

+    cpswapl(from->configTimestamp, to->configTimestamp);

+    cpswapl(from->root, to->root);

+    cpswapl(from->window, to->window);

+    cpswaps(from->sizeID, to->sizeID);

+    cpswaps(from->subpixelOrder, to->subpixelOrder);

+    cpswaps(from->widthInPixels, to->widthInPixels);

+    cpswaps(from->heightInPixels, to->heightInPixels);

+    cpswaps(from->widthInMillimeters, to->widthInMillimeters);

+    cpswaps(from->heightInMillimeters, to->heightInMillimeters);

+}

+

+static void

+SRRCrtcChangeNotifyEvent(xRRCrtcChangeNotifyEvent *from,

+			 xRRCrtcChangeNotifyEvent *to)

+{

+    to->type = from->type;

+    to->subCode = from->subCode;

+    cpswaps(from->sequenceNumber, to->sequenceNumber);

+    cpswapl(from->timestamp, to->timestamp);

+    cpswapl(from->window, to->window);

+    cpswapl(from->crtc, to->crtc);

+    cpswapl(from->mode, to->mode);

+    cpswaps(from->rotation, to->rotation);

+    /* pad1 */

+    cpswaps(from->x, to->x);

+    cpswaps(from->y, to->y);

+    cpswaps(from->width, to->width);

+    cpswaps(from->height, to->height);

+}

+

+static void

+SRROutputChangeNotifyEvent(xRROutputChangeNotifyEvent *from,

+			   xRROutputChangeNotifyEvent *to)

+{

+    to->type = from->type;

+    to->subCode = from->subCode;

+    cpswaps(from->sequenceNumber, to->sequenceNumber);

+    cpswapl(from->timestamp, to->timestamp);

+    cpswapl(from->configTimestamp, to->configTimestamp);

+    cpswapl(from->window, to->window);

+    cpswapl(from->output, to->output);

+    cpswapl(from->crtc, to->crtc);

+    cpswapl(from->mode, to->mode);

+    cpswaps(from->rotation, to->rotation);

+    to->connection = from->connection;

+    to->subpixelOrder = from->subpixelOrder;

+}

+

+static void

+SRROutputPropertyNotifyEvent(xRROutputPropertyNotifyEvent *from,

+			     xRROutputPropertyNotifyEvent *to)

+{

+    to->type = from->type;

+    to->subCode = from->subCode;

+    cpswaps(from->sequenceNumber, to->sequenceNumber);

+    cpswapl(from->window, to->window);

+    cpswapl(from->output, to->output);

+    cpswapl(from->atom, to->atom);

+    cpswapl(from->timestamp, to->timestamp);

+    to->state = from->state;

+    /* pad1 */

+    /* pad2 */

+    /* pad3 */

+    /* pad4 */

+}

+

+static void

+SRRNotifyEvent (xEvent *from,

+		xEvent *to)

+{

+    switch (from->u.u.detail) {

+    case RRNotify_CrtcChange:

+	SRRCrtcChangeNotifyEvent ((xRRCrtcChangeNotifyEvent *) from,

+				  (xRRCrtcChangeNotifyEvent *) to);

+	break;

+    case RRNotify_OutputChange:

+	SRROutputChangeNotifyEvent ((xRROutputChangeNotifyEvent *) from,

+				    (xRROutputChangeNotifyEvent *) to);

+	break;

+    case RRNotify_OutputProperty:

+	SRROutputPropertyNotifyEvent ((xRROutputPropertyNotifyEvent *) from,

+				      (xRROutputPropertyNotifyEvent *) to);

+	break;

+    default:

+	break;

+    }

+}

+

+static int RRGeneration;

+

+Bool RRInit (void)

+{

+    if (RRGeneration != serverGeneration)

+    {

+	if (!RRModeInit ())

+	    return FALSE;

+	if (!RRCrtcInit ())

+	    return FALSE;

+	if (!RROutputInit ())

+	    return FALSE;

+	RRGeneration = serverGeneration;

+    }

+    return TRUE;

+}

+

+Bool RRScreenInit(ScreenPtr pScreen)

+{

+    rrScrPrivPtr   pScrPriv;

+

+    if (!RRInit ())

+	return FALSE;

+

+    pScrPriv = (rrScrPrivPtr) calloc(1, sizeof (rrScrPrivRec));

+    if (!pScrPriv)

+	return FALSE;

+

+    SetRRScreen(pScreen, pScrPriv);

+

+    /*

+     * Calling function best set these function vectors

+     */

+    pScrPriv->rrGetInfo = 0;

+    pScrPriv->maxWidth = pScrPriv->minWidth = pScreen->width;

+    pScrPriv->maxHeight = pScrPriv->minHeight = pScreen->height;

+    

+    pScrPriv->width = pScreen->width;

+    pScrPriv->height = pScreen->height;

+    pScrPriv->mmWidth = pScreen->mmWidth;

+    pScrPriv->mmHeight = pScreen->mmHeight;

+#if RANDR_12_INTERFACE

+    pScrPriv->rrScreenSetSize = NULL;

+    pScrPriv->rrCrtcSet = NULL;

+    pScrPriv->rrCrtcSetGamma = NULL;

+#endif

+#if RANDR_10_INTERFACE    

+    pScrPriv->rrSetConfig = 0;

+    pScrPriv->rotations = RR_Rotate_0;

+    pScrPriv->reqWidth = pScreen->width;

+    pScrPriv->reqHeight = pScreen->height;

+    pScrPriv->nSizes = 0;

+    pScrPriv->pSizes = NULL;

+    pScrPriv->rotation = RR_Rotate_0;

+    pScrPriv->rate = 0;

+    pScrPriv->size = 0;

+#endif

+    

+    /*

+     * This value doesn't really matter -- any client must call

+     * GetScreenInfo before reading it which will automatically update

+     * the time

+     */

+    pScrPriv->lastSetTime = currentTime;

+    pScrPriv->lastConfigTime = currentTime;

+    

+    wrap (pScrPriv, pScreen, CloseScreen, RRCloseScreen);

+

+    pScrPriv->numOutputs = 0;

+    pScrPriv->outputs = NULL;

+    pScrPriv->numCrtcs = 0;

+    pScrPriv->crtcs = NULL;

+    

+    RRNScreens += 1;	/* keep count of screens that implement randr */

+    return TRUE;

+}

+

+/*ARGSUSED*/

+static int

+RRFreeClient (pointer data, XID id)

+{

+    RREventPtr   pRREvent;

+    WindowPtr	    pWin;

+    RREventPtr   *pHead, pCur, pPrev;

+

+    pRREvent = (RREventPtr) data;

+    pWin = pRREvent->window;

+    dixLookupResourceByType((pointer *)&pHead, pWin->drawable.id,

+			    RREventType, serverClient, DixDestroyAccess);

+    if (pHead) {

+	pPrev = 0;

+	for (pCur = *pHead; pCur && pCur != pRREvent; pCur=pCur->next)

+	    pPrev = pCur;

+	if (pCur)

+	{

+	    if (pPrev)

+	    	pPrev->next = pRREvent->next;

+	    else

+	    	*pHead = pRREvent->next;

+	}

+    }

+    free((pointer) pRREvent);

+    return 1;

+}

+

+/*ARGSUSED*/

+static int

+RRFreeEvents (pointer data, XID id)

+{

+    RREventPtr   *pHead, pCur, pNext;

+

+    pHead = (RREventPtr *) data;

+    for (pCur = *pHead; pCur; pCur = pNext) {

+	pNext = pCur->next;

+	FreeResource (pCur->clientResource, RRClientType);

+	free((pointer) pCur);

+    }

+    free((pointer) pHead);

+    return 1;

+}

+

+void

+RRExtensionInit (void)

+{

+    ExtensionEntry *extEntry;

+

+    if (RRNScreens == 0) return;

+

+    if (!dixRequestPrivate(RRClientPrivateKey,

+				sizeof (RRClientRec) +

+				screenInfo.numScreens * sizeof (RRTimesRec)))

+	return;

+    if (!AddCallback (&ClientStateCallback, RRClientCallback, 0))

+	return;

+

+    RRClientType = CreateNewResourceType(RRFreeClient, "RandRClient");

+    if (!RRClientType)

+	return;

+    RREventType = CreateNewResourceType(RRFreeEvents, "RandREvent");

+    if (!RREventType)

+	return;

+    extEntry = AddExtension (RANDR_NAME, RRNumberEvents, RRNumberErrors,

+			     ProcRRDispatch, SProcRRDispatch,

+			     NULL, StandardMinorOpcode);

+    if (!extEntry)

+	return;

+    RRErrorBase = extEntry->errorBase;

+    RREventBase = extEntry->eventBase;

+    EventSwapVector[RREventBase + RRScreenChangeNotify] = (EventSwapPtr) 

+	SRRScreenChangeNotifyEvent;

+    EventSwapVector[RREventBase + RRNotify] = (EventSwapPtr)

+	SRRNotifyEvent;

+#ifdef PANORAMIX

+    RRXineramaExtensionInit();

+#endif

+}

+

+static int

+TellChanged (WindowPtr pWin, pointer value)

+{

+    RREventPtr			*pHead, pRREvent;

+    ClientPtr			client;

+    ScreenPtr			pScreen = pWin->drawable.pScreen;

+    rrScrPriv(pScreen);

+    int				i;

+

+    dixLookupResourceByType((pointer *)&pHead, pWin->drawable.id,

+			    RREventType, serverClient, DixReadAccess);

+    if (!pHead)

+	return WT_WALKCHILDREN;

+

+    for (pRREvent = *pHead; pRREvent; pRREvent = pRREvent->next) 

+    {

+	client = pRREvent->client;

+	if (client == serverClient || client->clientGone)

+	    continue;

+

+	if (pRREvent->mask & RRScreenChangeNotifyMask)

+	    RRDeliverScreenEvent (client, pWin, pScreen);

+	

+	if (pRREvent->mask & RRCrtcChangeNotifyMask)

+	{

+	    for (i = 0; i < pScrPriv->numCrtcs; i++)

+	    {

+		RRCrtcPtr   crtc = pScrPriv->crtcs[i];

+		if (crtc->changed)

+		    RRDeliverCrtcEvent (client, pWin, crtc);

+	    }

+	}

+	

+	if (pRREvent->mask & RROutputChangeNotifyMask)

+	{

+	    for (i = 0; i < pScrPriv->numOutputs; i++)

+	    {

+		RROutputPtr   output = pScrPriv->outputs[i];

+		if (output->changed)

+		    RRDeliverOutputEvent (client, pWin, output);

+	    }

+	}

+    }

+    return WT_WALKCHILDREN;

+}

+

+/*

+ * Something changed; send events and adjust pointer position

+ */

+void

+RRTellChanged (ScreenPtr pScreen)

+{

+    rrScrPriv (pScreen);

+    int i;

+    

+    if (pScrPriv->changed)

+    {

+	UpdateCurrentTime ();

+	if (pScrPriv->configChanged)

+	{

+	    pScrPriv->lastConfigTime = currentTime;

+	    pScrPriv->configChanged = FALSE;

+	}

+	pScrPriv->changed = FALSE;

+	WalkTree (pScreen, TellChanged, (pointer) pScreen);

+	for (i = 0; i < pScrPriv->numOutputs; i++)

+	    pScrPriv->outputs[i]->changed = FALSE;

+	for (i = 0; i < pScrPriv->numCrtcs; i++)

+	    pScrPriv->crtcs[i]->changed = FALSE;

+	if (pScrPriv->layoutChanged)

+	{

+	    pScrPriv->layoutChanged = FALSE;

+	    RRPointerScreenConfigured (pScreen);

+	    RRSendConfigNotify (pScreen);

+	}

+    }

+}

+

+/*

+ * Return the first output which is connected to an active CRTC

+ * Used in emulating 1.0 behaviour

+ */

+RROutputPtr

+RRFirstOutput (ScreenPtr pScreen)

+{

+    rrScrPriv(pScreen);

+    RROutputPtr		    output;

+    int	i, j;

+    

+    if (pScrPriv->primaryOutput && pScrPriv->primaryOutput->crtc)

+	return pScrPriv->primaryOutput;

+

+    for (i = 0; i < pScrPriv->numCrtcs; i++)

+    {

+	RRCrtcPtr   crtc = pScrPriv->crtcs[i];

+	for (j = 0; j < pScrPriv->numOutputs; j++)

+	{

+	    output = pScrPriv->outputs[j];

+	    if (output->crtc == crtc)

+		return output;

+	}

+    }

+    return NULL;

+}

+

+CARD16

+RRVerticalRefresh (xRRModeInfo *mode)

+{

+    CARD32  refresh;

+    CARD32  dots = mode->hTotal * mode->vTotal;

+    if (!dots)

+	return 0;

+    refresh = (mode->dotClock + dots/2) / dots;

+    if (refresh > 0xffff)

+	refresh = 0xffff;

+    return (CARD16) refresh;

+}

+

+static int

+ProcRRDispatch (ClientPtr client)

+{

+    REQUEST(xReq);

+    if (stuff->data >= RRNumberRequests || !ProcRandrVector[stuff->data])

+	return BadRequest;

+    return (*ProcRandrVector[stuff->data]) (client);

+}

+

+static int

+SProcRRDispatch (ClientPtr client)

+{

+    REQUEST(xReq);

+    if (stuff->data >= RRNumberRequests || !ProcRandrVector[stuff->data])

+	return BadRequest;

+    return (*SProcRandrVector[stuff->data]) (client);

+}

+