xserver git update 15/5/2010

1 files changed, 1387 insertions, 1387 deletions

diff --git a/xorg-server/randr/rrcrtc.c b/xorg-server/randr/rrcrtc.c
index a9eb2d262..2544903e9 100644
--- a/xorg-server/randr/rrcrtc.c
+++ b/xorg-server/randr/rrcrtc.c
@@ -1,1387 +1,1387 @@
-/*
- * Copyright © 2006 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 "randrstr.h"
-#include "swaprep.h"
-
-RESTYPE	RRCrtcType;
-
-/*
- * Notify the CRTC of some change
- */
-void
-RRCrtcChanged (RRCrtcPtr crtc, Bool layoutChanged)
-{
-    ScreenPtr	pScreen = crtc->pScreen;
-
-    crtc->changed = TRUE;
-    if (pScreen)
-    {
-	rrScrPriv(pScreen);
-    
-	pScrPriv->changed = TRUE;
-	/*
-	 * Send ConfigureNotify on any layout change
-	 */
-	if (layoutChanged)
-	    pScrPriv->layoutChanged = TRUE;
-    }
-}
-
-/*
- * Create a CRTC
- */
-RRCrtcPtr
-RRCrtcCreate (ScreenPtr pScreen, void *devPrivate)
-{
-    RRCrtcPtr	    crtc;
-    RRCrtcPtr	    *crtcs;
-    rrScrPrivPtr    pScrPriv;
-
-    if (!RRInit())
-	return NULL;
-    
-    pScrPriv = rrGetScrPriv(pScreen);
-
-    /* make space for the crtc pointer */
-    if (pScrPriv->numCrtcs)
-	crtcs = xrealloc (pScrPriv->crtcs, 
-			  (pScrPriv->numCrtcs + 1) * sizeof (RRCrtcPtr));
-    else
-	crtcs = xalloc (sizeof (RRCrtcPtr));
-    if (!crtcs)
-	return FALSE;
-    pScrPriv->crtcs = crtcs;
-    
-    crtc = xcalloc (1, sizeof (RRCrtcRec));
-    if (!crtc)
-	return NULL;
-    crtc->id = FakeClientID (0);
-    crtc->pScreen = pScreen;
-    crtc->mode = NULL;
-    crtc->x = 0;
-    crtc->y = 0;
-    crtc->rotation = RR_Rotate_0;
-    crtc->rotations = RR_Rotate_0;
-    crtc->outputs = NULL;
-    crtc->numOutputs = 0;
-    crtc->gammaSize = 0;
-    crtc->gammaRed = crtc->gammaBlue = crtc->gammaGreen = NULL;
-    crtc->changed = FALSE;
-    crtc->devPrivate = devPrivate;
-    RRTransformInit (&crtc->client_pending_transform);
-    RRTransformInit (&crtc->client_current_transform);
-    pixman_transform_init_identity (&crtc->transform);
-    pixman_f_transform_init_identity (&crtc->f_transform);
-    pixman_f_transform_init_identity (&crtc->f_inverse);
-
-    if (!AddResource (crtc->id, RRCrtcType, (pointer) crtc))
-	return NULL;
-
-    /* attach the screen and crtc together */
-    crtc->pScreen = pScreen;
-    pScrPriv->crtcs[pScrPriv->numCrtcs++] = crtc;
-    
-    return crtc;
-}
-
-/*
- * Set the allowed rotations on a CRTC
- */
-void
-RRCrtcSetRotations (RRCrtcPtr crtc, Rotation rotations)
-{
-    crtc->rotations = rotations;
-}
-
-/*
- * Set whether transforms are allowed on a CRTC
- */
-void
-RRCrtcSetTransformSupport (RRCrtcPtr crtc, Bool transforms)
-{
-    crtc->transforms = transforms;
-}
-
-/*
- * Notify the extension that the Crtc has been reconfigured,
- * the driver calls this whenever it has updated the mode
- */
-Bool
-RRCrtcNotify (RRCrtcPtr	    crtc,
-	      RRModePtr	    mode,
-	      int	    x,
-	      int	    y,
-	      Rotation	    rotation,
-	      RRTransformPtr transform,
-	      int	    numOutputs,
-	      RROutputPtr   *outputs)
-{
-    int	    i, j;
-    
-    /*
-     * Check to see if any of the new outputs were
-     * not in the old list and mark them as changed
-     */
-    for (i = 0; i < numOutputs; i++)
-    {
-	for (j = 0; j < crtc->numOutputs; j++)
-	    if (outputs[i] == crtc->outputs[j])
-		break;
-	if (j == crtc->numOutputs)
-	{
-	    outputs[i]->crtc = crtc;
-	    RROutputChanged (outputs[i], FALSE);
-	    RRCrtcChanged (crtc, FALSE);
-	}
-    }
-    /*
-     * Check to see if any of the old outputs are
-     * not in the new list and mark them as changed
-     */
-    for (j = 0; j < crtc->numOutputs; j++)
-    {
-	for (i = 0; i < numOutputs; i++)
-	    if (outputs[i] == crtc->outputs[j])
-		break;
-	if (i == numOutputs)
-	{
-	    if (crtc->outputs[j]->crtc == crtc)
-		crtc->outputs[j]->crtc = NULL;
-	    RROutputChanged (crtc->outputs[j], FALSE);
-	    RRCrtcChanged (crtc, FALSE);
-	}
-    }
-    /*
-     * Reallocate the crtc output array if necessary
-     */
-    if (numOutputs != crtc->numOutputs)
-    {
-	RROutputPtr *newoutputs;
-	
-	if (numOutputs)
-	{
-	    if (crtc->numOutputs)
-		newoutputs = xrealloc (crtc->outputs,
-				    numOutputs * sizeof (RROutputPtr));
-	    else
-		newoutputs = xalloc (numOutputs * sizeof (RROutputPtr));
-	    if (!newoutputs)
-		return FALSE;
-	}
-	else
-	{
-	    if (crtc->outputs)
-		xfree (crtc->outputs);
-	    newoutputs = NULL;
-	}
-	crtc->outputs = newoutputs;
-	crtc->numOutputs = numOutputs;
-    }
-    /*
-     * Copy the new list of outputs into the crtc
-     */
-    memcpy (crtc->outputs, outputs, numOutputs * sizeof (RROutputPtr));
-    /*
-     * Update remaining crtc fields
-     */
-    if (mode != crtc->mode)
-    {
-	if (crtc->mode)
-	    RRModeDestroy (crtc->mode);
-	crtc->mode = mode;
-	if (mode != NULL)
-	    mode->refcnt++;
-	RRCrtcChanged (crtc, TRUE);
-    }
-    if (x != crtc->x)
-    {
-	crtc->x = x;
-	RRCrtcChanged (crtc, TRUE);
-    }
-    if (y != crtc->y)
-    {
-	crtc->y = y;
-	RRCrtcChanged (crtc, TRUE);
-    }
-    if (rotation != crtc->rotation)
-    {
-	crtc->rotation = rotation;
-	RRCrtcChanged (crtc, TRUE);
-    }
-    if (!RRTransformEqual (transform, &crtc->client_current_transform)) {
-	RRTransformCopy (&crtc->client_current_transform, transform);
-	RRCrtcChanged (crtc, TRUE);
-    }
-    if (crtc->changed && mode)
-    {
-	RRTransformCompute (x, y,
-			    mode->mode.width, mode->mode.height,
-			    rotation,
-			    &crtc->client_current_transform,
-			    &crtc->transform, &crtc->f_transform,
-			    &crtc->f_inverse);
-    }
-    return TRUE;
-}
-
-void
-RRDeliverCrtcEvent (ClientPtr client, WindowPtr pWin, RRCrtcPtr crtc)
-{
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-    rrScrPriv (pScreen);
-    xRRCrtcChangeNotifyEvent	ce;
-    RRModePtr	mode = crtc->mode;
-    
-    ce.type = RRNotify + RREventBase;
-    ce.subCode = RRNotify_CrtcChange;
-    ce.sequenceNumber = client->sequence;
-    ce.timestamp = pScrPriv->lastSetTime.milliseconds;
-    ce.window = pWin->drawable.id;
-    ce.crtc = crtc->id;
-    ce.rotation = crtc->rotation;
-    if (mode)
-    {
-	ce.mode = mode->mode.id;
-	ce.x = crtc->x;
-	ce.y = crtc->y;
-	ce.width = mode->mode.width;
-	ce.height = mode->mode.height;
-    }
-    else
-    {
-	ce.mode = None;
-	ce.x = 0;
-	ce.y = 0;
-	ce.width = 0;
-	ce.height = 0;
-    }
-    WriteEventsToClient (client, 1, (xEvent *) &ce);
-}
-
-static Bool
-RRCrtcPendingProperties (RRCrtcPtr crtc)
-{
-    ScreenPtr	pScreen = crtc->pScreen;
-    rrScrPriv(pScreen);
-    int		o;
-
-    for (o = 0; o < pScrPriv->numOutputs; o++)
-    {
-	RROutputPtr output = pScrPriv->outputs[o];
-	if (output->crtc == crtc && output->pendingProperties)
-	    return TRUE;
-    }
-    return FALSE;
-}
-
-/*
- * Request that the Crtc be reconfigured
- */
-Bool
-RRCrtcSet (RRCrtcPtr    crtc,
-	   RRModePtr	mode,
-	   int		x,
-	   int		y,
-	   Rotation	rotation,
-	   int		numOutputs,
-	   RROutputPtr  *outputs)
-{
-    ScreenPtr	pScreen = crtc->pScreen;
-    Bool	ret = FALSE;
-    rrScrPriv(pScreen);
-
-    /* See if nothing changed */
-    if (crtc->mode == mode &&
-	crtc->x == x &&
-	crtc->y == y &&
-	crtc->rotation == rotation &&
-	crtc->numOutputs == numOutputs &&
-	!memcmp (crtc->outputs, outputs, numOutputs * sizeof (RROutputPtr)) &&
-	!RRCrtcPendingProperties (crtc) &&
-	!RRCrtcPendingTransform (crtc))
-    {
-	ret = TRUE;
-    }
-    else
-    {
-#if RANDR_12_INTERFACE
-	if (pScrPriv->rrCrtcSet)
-	{
-	    ret = (*pScrPriv->rrCrtcSet) (pScreen, crtc, mode, x, y, 
-					  rotation, numOutputs, outputs);
-	}
-	else
-#endif
-	{
-#if RANDR_10_INTERFACE
-	    if (pScrPriv->rrSetConfig)
-	    {
-		RRScreenSize	    size;
-		RRScreenRate	    rate;
-
-		if (!mode)
-		{
-		    RRCrtcNotify (crtc, NULL, x, y, rotation, NULL, 0, NULL);
-		    ret = TRUE;
-		}
-		else
-		{
-		    size.width = mode->mode.width;
-		    size.height = mode->mode.height;
-		    if (outputs[0]->mmWidth && outputs[0]->mmHeight)
-		    {
-			size.mmWidth = outputs[0]->mmWidth;
-			size.mmHeight = outputs[0]->mmHeight;
-		    }
-		    else
-		    {
-			size.mmWidth = pScreen->mmWidth;
-			size.mmHeight = pScreen->mmHeight;
-		    }
-		    size.nRates = 1;
-		    rate.rate = RRVerticalRefresh (&mode->mode);
-		    size.pRates = &rate;
-		    ret = (*pScrPriv->rrSetConfig) (pScreen, rotation, rate.rate, &size);
-		    /*
-		     * Old 1.0 interface tied screen size to mode size
-		     */
-		    if (ret)
-		    {
-			RRCrtcNotify (crtc, mode, x, y, rotation, NULL, 1, outputs);
-			RRScreenSizeNotify (pScreen);
-		    }
-		}
-	    }
-#endif
-	}
-	if (ret)
-	{
-	    int	o;
-	    RRTellChanged (pScreen);
-
-	    for (o = 0; o < numOutputs; o++)
-		RRPostPendingProperties (outputs[o]);
-	}
-    }
-    return ret;
-}
-
-/*
- * Return crtc transform
- */
-RRTransformPtr
-RRCrtcGetTransform (RRCrtcPtr crtc)
-{
-    RRTransformPtr  transform = &crtc->client_pending_transform;
-
-    if (pixman_transform_is_identity (&transform->transform))
-	return NULL;
-    return transform;
-}
-
-/*
- * Check whether the pending and current transforms are the same
- */
-Bool
-RRCrtcPendingTransform (RRCrtcPtr crtc)
-{
-    return memcmp (&crtc->client_current_transform.transform,
-		   &crtc->client_pending_transform.transform,
-		   sizeof (PictTransform)) != 0;
-}
-
-/*
- * Destroy a Crtc at shutdown
- */
-void
-RRCrtcDestroy (RRCrtcPtr crtc)
-{
-    FreeResource (crtc->id, 0);
-}
-
-static int
-RRCrtcDestroyResource (pointer value, XID pid)
-{
-    RRCrtcPtr	crtc = (RRCrtcPtr) value;
-    ScreenPtr	pScreen = crtc->pScreen;
-
-    if (pScreen)
-    {
-	rrScrPriv(pScreen);
-	int		i;
-    
-	for (i = 0; i < pScrPriv->numCrtcs; i++)
-	{
-	    if (pScrPriv->crtcs[i] == crtc)
-	    {
-		memmove (pScrPriv->crtcs + i, pScrPriv->crtcs + i + 1,
-			 (pScrPriv->numCrtcs - (i + 1)) * sizeof (RRCrtcPtr));
-		--pScrPriv->numCrtcs;
-		break;
-	    }
-	}
-    }
-    if (crtc->gammaRed)
-	xfree (crtc->gammaRed);
-    if (crtc->mode)
-	RRModeDestroy (crtc->mode);
-    xfree (crtc);
-    return 1;
-}
-
-/*
- * Request that the Crtc gamma be changed
- */
-
-Bool
-RRCrtcGammaSet (RRCrtcPtr   crtc,
-		CARD16	    *red,
-		CARD16	    *green,
-		CARD16	    *blue)
-{
-    Bool	ret = TRUE;
-#if RANDR_12_INTERFACE
-    ScreenPtr	pScreen = crtc->pScreen;
-#endif
-    
-    memcpy (crtc->gammaRed, red, crtc->gammaSize * sizeof (CARD16));
-    memcpy (crtc->gammaGreen, green, crtc->gammaSize * sizeof (CARD16));
-    memcpy (crtc->gammaBlue, blue, crtc->gammaSize * sizeof (CARD16));
-#if RANDR_12_INTERFACE
-    if (pScreen)
-    {
-	rrScrPriv(pScreen);
-	if (pScrPriv->rrCrtcSetGamma)
-	    ret = (*pScrPriv->rrCrtcSetGamma) (pScreen, crtc);
-    }
-#endif
-    return ret;
-}
-
-/*
- * Request current gamma back from the DDX (if possible).
- * This includes gamma size.
- */
-Bool
-RRCrtcGammaGet(RRCrtcPtr crtc)
-{
-    Bool ret = TRUE;
-#if RANDR_12_INTERFACE
-    ScreenPtr	pScreen = crtc->pScreen;
-#endif
-
-#if RANDR_12_INTERFACE
-    if (pScreen)
-    {
-        rrScrPriv(pScreen);
-        if (pScrPriv->rrCrtcGetGamma)
-            ret = (*pScrPriv->rrCrtcGetGamma) (pScreen, crtc);
-    }
-#endif
-    return ret;
-}
-
-/*
- * Notify the extension that the Crtc gamma has been changed
- * The driver calls this whenever it has changed the gamma values
- * in the RRCrtcRec
- */
-
-Bool
-RRCrtcGammaNotify (RRCrtcPtr	crtc)
-{
-    return TRUE;    /* not much going on here */
-}
-
-static void
-RRModeGetScanoutSize (RRModePtr mode, PictTransformPtr transform,
-		      int *width, int *height)
-{
-    BoxRec  box;
-
-    if (mode == NULL) {
-	*width = 0;
-	*height = 0;
-	return;
-    }
-
-    box.x1 = 0;
-    box.y1 = 0;
-    box.x2 = mode->mode.width;
-    box.y2 = mode->mode.height;
-
-    pixman_transform_bounds (transform, &box);
-    *width = box.x2 - box.x1;
-    *height = box.y2 - box.y1;
-}
-
-/**
- * Returns the width/height that the crtc scans out from the framebuffer
- */
-void
-RRCrtcGetScanoutSize(RRCrtcPtr crtc, int *width, int *height)
-{
-    return RRModeGetScanoutSize (crtc->mode, &crtc->transform, width, height);
-}
-
-/*
- * Set the size of the gamma table at server startup time
- */
-
-Bool
-RRCrtcGammaSetSize (RRCrtcPtr	crtc,
-		    int		size)
-{
-    CARD16  *gamma;
-
-    if (size == crtc->gammaSize)
-	return TRUE;
-    if (size)
-    {
-	gamma = xalloc (size * 3 * sizeof (CARD16));
-	if (!gamma)
-	    return FALSE;
-    }
-    else
-	gamma = NULL;
-    if (crtc->gammaRed)
-	xfree (crtc->gammaRed);
-    crtc->gammaRed = gamma;
-    crtc->gammaGreen = gamma + size;
-    crtc->gammaBlue = gamma + size*2;
-    crtc->gammaSize = size;
-    return TRUE;
-}
-
-/*
- * Set the pending CRTC transformation
- */
-
-int
-RRCrtcTransformSet (RRCrtcPtr		crtc,
-		    PictTransformPtr	transform,
-		    struct pixman_f_transform *f_transform,
-		    struct pixman_f_transform *f_inverse,
-		    char		*filter_name,
-		    int			filter_len,
-		    xFixed		*params,
-		    int			nparams)
-{
-    PictFilterPtr   filter = NULL;
-    int		    width = 0, height = 0;
-
-    if (!crtc->transforms)
-	return BadValue;
-
-    if (filter_len)
-    {
-	filter = PictureFindFilter (crtc->pScreen,
-				    filter_name,
-				    filter_len);
-	if (!filter)
-	    return BadName;
-	if (filter->ValidateParams)
-	{
-	    if (!filter->ValidateParams (crtc->pScreen, filter->id,
-					 params, nparams, &width, &height))
-		return BadMatch;
-	}
-	else {
-	    width = filter->width;
-	    height = filter->height;
-	}
-    }
-    else
-    {
-	if (nparams)
-	    return BadMatch;
-    }
-    if (!RRTransformSetFilter (&crtc->client_pending_transform,
-			       filter, params, nparams, width, height))
-	return BadAlloc;
-
-    crtc->client_pending_transform.transform = *transform;
-    crtc->client_pending_transform.f_transform = *f_transform;
-    crtc->client_pending_transform.f_inverse = *f_inverse;
-    return Success;
-}
-
-/*
- * Initialize crtc type
- */
-Bool
-RRCrtcInit (void)
-{
-    RRCrtcType = CreateNewResourceType (RRCrtcDestroyResource, "CRTC");
-    if (!RRCrtcType)
-	return FALSE;
-    return TRUE;
-}
-
-int
-ProcRRGetCrtcInfo (ClientPtr client)
-{
-    REQUEST(xRRGetCrtcInfoReq);
-    xRRGetCrtcInfoReply	rep;
-    RRCrtcPtr			crtc;
-    CARD8			*extra;
-    unsigned long		extraLen;
-    ScreenPtr			pScreen;
-    rrScrPrivPtr		pScrPriv;
-    RRModePtr			mode;
-    RROutput			*outputs;
-    RROutput			*possible;
-    int				i, j, k, n;
-    int				width, height;
-    BoxRec			panned_area;
-    
-    REQUEST_SIZE_MATCH(xRRGetCrtcInfoReq);
-    VERIFY_RR_CRTC(stuff->crtc, crtc, DixReadAccess);
-
-    /* All crtcs must be associated with screens before client
-     * requests are processed
-     */
-    pScreen = crtc->pScreen;
-    pScrPriv = rrGetScrPriv(pScreen);
-
-    mode = crtc->mode;
-    
-    rep.type = X_Reply;
-    rep.status = RRSetConfigSuccess;
-    rep.sequenceNumber = client->sequence;
-    rep.length = 0;
-    rep.timestamp = pScrPriv->lastSetTime.milliseconds;
-    if (pScrPriv->rrGetPanning &&
-	pScrPriv->rrGetPanning (pScreen, crtc, &panned_area, NULL, NULL) &&
-	(panned_area.x2 > panned_area.x1) && (panned_area.y2 > panned_area.y1))
-    {
- 	rep.x = panned_area.x1;
-	rep.y = panned_area.y1;
-	rep.width = panned_area.x2 - panned_area.x1;
-	rep.height = panned_area.y2 - panned_area.y1;
-    }
-    else
-    {
-	RRCrtcGetScanoutSize (crtc, &width, &height);
-	rep.x = crtc->x;
-	rep.y = crtc->y;
-	rep.width = width;
-	rep.height = height;
-    }
-    rep.mode = mode ? mode->mode.id : 0;
-    rep.rotation = crtc->rotation;
-    rep.rotations = crtc->rotations;
-    rep.nOutput = crtc->numOutputs;
-    k = 0;
-    for (i = 0; i < pScrPriv->numOutputs; i++)
-	for (j = 0; j < pScrPriv->outputs[i]->numCrtcs; j++)
-	    if (pScrPriv->outputs[i]->crtcs[j] == crtc)
-		k++;
-    rep.nPossibleOutput = k;
-    
-    rep.length = rep.nOutput + rep.nPossibleOutput;
-
-    extraLen = rep.length << 2;
-    if (extraLen)
-    {
-	extra = xalloc (extraLen);
-	if (!extra)
-	    return BadAlloc;
-    }
-    else
-	extra = NULL;
-
-    outputs = (RROutput *) extra;
-    possible = (RROutput *) (outputs + rep.nOutput);
-    
-    for (i = 0; i < crtc->numOutputs; i++)
-    {
-	outputs[i] = crtc->outputs[i]->id;
-	if (client->swapped)
-	    swapl (&outputs[i], n);
-    }
-    k = 0;
-    for (i = 0; i < pScrPriv->numOutputs; i++)
-	for (j = 0; j < pScrPriv->outputs[i]->numCrtcs; j++)
-	    if (pScrPriv->outputs[i]->crtcs[j] == crtc)
-	    {
-		possible[k] = pScrPriv->outputs[i]->id;
-		if (client->swapped)
-		    swapl (&possible[k], n);
-		k++;
-	    }
-    
-    if (client->swapped) {
-	swaps(&rep.sequenceNumber, n);
-	swapl(&rep.length, n);
-	swapl(&rep.timestamp, n);
-	swaps(&rep.x, n);
-	swaps(&rep.y, n);
-	swaps(&rep.width, n);
-	swaps(&rep.height, n);
-	swapl(&rep.mode, n);
-	swaps(&rep.rotation, n);
-	swaps(&rep.rotations, n);
-	swaps(&rep.nOutput, n);
-	swaps(&rep.nPossibleOutput, n);
-    }
-    WriteToClient(client, sizeof(xRRGetCrtcInfoReply), (char *)&rep);
-    if (extraLen)
-    {
-	WriteToClient (client, extraLen, (char *) extra);
-	xfree (extra);
-    }
-    
-    return client->noClientException;
-}
-
-int
-ProcRRSetCrtcConfig (ClientPtr client)
-{
-    REQUEST(xRRSetCrtcConfigReq);
-    xRRSetCrtcConfigReply   rep;
-    ScreenPtr		    pScreen;
-    rrScrPrivPtr	    pScrPriv;
-    RRCrtcPtr		    crtc;
-    RRModePtr		    mode;
-    int			    numOutputs;
-    RROutputPtr		    *outputs = NULL;
-    RROutput		    *outputIds;
-    TimeStamp		    configTime;
-    TimeStamp		    time;
-    Rotation		    rotation;
-    int			    rc, i, j;
-    
-    REQUEST_AT_LEAST_SIZE(xRRSetCrtcConfigReq);
-    numOutputs = (stuff->length - bytes_to_int32(SIZEOF (xRRSetCrtcConfigReq)));
-    
-    VERIFY_RR_CRTC(stuff->crtc, crtc, DixSetAttrAccess);
-
-    if (stuff->mode == None)
-    {
-	mode = NULL;
-	if (numOutputs > 0)
-	    return BadMatch;
-    }
-    else
-    {
-	VERIFY_RR_MODE(stuff->mode, mode, DixSetAttrAccess);
-	if (numOutputs == 0)
-	    return BadMatch;
-    }
-    if (numOutputs)
-    {
-	outputs = xalloc (numOutputs * sizeof (RROutputPtr));
-	if (!outputs)
-	    return BadAlloc;
-    }
-    else
-	outputs = NULL;
-    
-    outputIds = (RROutput *) (stuff + 1);
-    for (i = 0; i < numOutputs; i++)
-    {
-	rc = dixLookupResourceByType((pointer *)(outputs + i), outputIds[i],
-				     RROutputType, client, DixSetAttrAccess);
-	if (rc != Success)
-	{
-	    if (outputs)
-		xfree (outputs);
-	    return (rc == BadValue) ? RRErrorBase + BadRROutput : rc;
-	}
-	/* validate crtc for this output */
-	for (j = 0; j < outputs[i]->numCrtcs; j++)
-	    if (outputs[i]->crtcs[j] == crtc)
-		break;
-	if (j == outputs[i]->numCrtcs)
-	{
-	    if (outputs)
-		xfree (outputs);
-	    return BadMatch;
-	}
-	/* validate mode for this output */
-	for (j = 0; j < outputs[i]->numModes + outputs[i]->numUserModes; j++)
-	{
-	    RRModePtr	m = (j < outputs[i]->numModes ? 
-			     outputs[i]->modes[j] :
-			     outputs[i]->userModes[j - outputs[i]->numModes]);
-	    if (m == mode)
-		break;
-	}
-	if (j == outputs[i]->numModes + outputs[i]->numUserModes)
-	{
-	    if (outputs)
-		xfree (outputs);
-	    return BadMatch;
-	}
-    }
-    /* validate clones */
-    for (i = 0; i < numOutputs; i++)
-    {
-	for (j = 0; j < numOutputs; j++)
-	{
-	    int k;
-	    if (i == j)
-		continue;
-	    for (k = 0; k < outputs[i]->numClones; k++)
-	    {
-		if (outputs[i]->clones[k] == outputs[j])
-		    break;
-	    }
-	    if (k == outputs[i]->numClones)
-	    {
-		if (outputs)
-		    xfree (outputs);
-		return BadMatch;
-	    }
-	}
-    }
-
-    pScreen = crtc->pScreen;
-    pScrPriv = rrGetScrPriv(pScreen);
-    
-    time = ClientTimeToServerTime(stuff->timestamp);
-    configTime = ClientTimeToServerTime(stuff->configTimestamp);
-    
-    if (!pScrPriv)
-    {
-	time = currentTime;
-	rep.status = RRSetConfigFailed;
-	goto sendReply;
-    }
-    
-#if 0
-    /*
-     * if the client's config timestamp is not the same as the last config
-     * timestamp, then the config information isn't up-to-date and
-     * can't even be validated
-     */
-    if (CompareTimeStamps (configTime, pScrPriv->lastConfigTime) != 0)
-    {
-	rep.status = RRSetConfigInvalidConfigTime;
-	goto sendReply;
-    }
-#endif
-    
-    /*
-     * Validate requested rotation
-     */
-    rotation = (Rotation) stuff->rotation;
-
-    /* test the rotation bits only! */
-    switch (rotation & 0xf) {
-    case RR_Rotate_0:
-    case RR_Rotate_90:
-    case RR_Rotate_180:
-    case RR_Rotate_270:
-	break;
-    default:
-	/*
-	 * Invalid rotation
-	 */
-	client->errorValue = stuff->rotation;
-	if (outputs)
-	    xfree (outputs);
-	return BadValue;
-    }
-
-    if (mode)
-    {
-	if ((~crtc->rotations) & rotation)
-	{
-	    /*
-	     * requested rotation or reflection not supported by screen
-	     */
-	    client->errorValue = stuff->rotation;
-	    if (outputs)
-		xfree (outputs);
-	    return BadMatch;
-	}
-    
-#ifdef RANDR_12_INTERFACE
-	/*
-	 * Check screen size bounds if the DDX provides a 1.2 interface
-	 * for setting screen size. Else, assume the CrtcSet sets
-	 * the size along with the mode. If the driver supports transforms,
-	 * then it must allow crtcs to display a subset of the screen, so
-	 * only do this check for drivers without transform support.
-	 */
-	if (pScrPriv->rrScreenSetSize && !crtc->transforms)
-	{
-	    int source_width;
-	    int	source_height;
-	    PictTransform transform;
-	    struct pixman_f_transform f_transform, f_inverse;
-
-	    RRTransformCompute (stuff->x, stuff->y,
-				mode->mode.width, mode->mode.height,
-				rotation,
-				&crtc->client_pending_transform,
-				&transform, &f_transform, &f_inverse);
-
-	    RRModeGetScanoutSize (mode, &transform, &source_width, &source_height);
-	    if (stuff->x + source_width > pScreen->width)
-	    {
-		client->errorValue = stuff->x;
-		if (outputs)
-		    xfree (outputs);
-		return BadValue;
-	    }
-	    
-	    if (stuff->y + source_height > pScreen->height)
-	    {
-		client->errorValue = stuff->y;
-		if (outputs)
-		    xfree (outputs);
-		return BadValue;
-	    }
-	}
-#endif
-    }
-    
-    /*
-     * Make sure the requested set-time is not older than
-     * the last set-time
-     */
-    if (CompareTimeStamps (time, pScrPriv->lastSetTime) < 0)
-    {
-	rep.status = RRSetConfigInvalidTime;
-	goto sendReply;
-    }
-
-    if (!RRCrtcSet (crtc, mode, stuff->x, stuff->y,
-		   rotation, numOutputs, outputs))
-    {
-	rep.status = RRSetConfigFailed;
-	goto sendReply;
-    }
-    rep.status = RRSetConfigSuccess;
-    pScrPriv->lastSetTime = time;
-    
-sendReply:
-    if (outputs)
-	xfree (outputs);
-    
-    rep.type = X_Reply;
-    /* rep.status has already been filled in */
-    rep.length = 0;
-    rep.sequenceNumber = client->sequence;
-    rep.newTimestamp = pScrPriv->lastSetTime.milliseconds;
-
-    if (client->swapped) 
-    {
-	int n;
-    	swaps(&rep.sequenceNumber, n);
-    	swapl(&rep.length, n);
-	swapl(&rep.newTimestamp, n);
-    }
-    WriteToClient(client, sizeof(xRRSetCrtcConfigReply), (char *)&rep);
-    
-    return client->noClientException;
-}
-
-int
-ProcRRGetPanning (ClientPtr client)
-{
-    REQUEST(xRRGetPanningReq);
-    xRRGetPanningReply	rep;
-    RRCrtcPtr		crtc;
-    ScreenPtr		pScreen;
-    rrScrPrivPtr	pScrPriv;
-    BoxRec		total;
-    BoxRec		tracking;
-    INT16		border[4];
-    int			n;
-    
-    REQUEST_SIZE_MATCH(xRRGetPanningReq);
-    VERIFY_RR_CRTC(stuff->crtc, crtc, DixReadAccess);
-
-    /* All crtcs must be associated with screens before client
-     * requests are processed
-     */
-    pScreen = crtc->pScreen;
-    pScrPriv = rrGetScrPriv(pScreen);
-
-    if (!pScrPriv)
-	return RRErrorBase + BadRRCrtc;
-
-    memset(&rep, 0, sizeof(rep));
-    rep.type = X_Reply;
-    rep.status = RRSetConfigSuccess;
-    rep.sequenceNumber = client->sequence;
-    rep.length = 1;
-    rep.timestamp = pScrPriv->lastSetTime.milliseconds;
-
-    if (pScrPriv->rrGetPanning &&
-	pScrPriv->rrGetPanning (pScreen, crtc, &total, &tracking, border)) {
-	rep.left          = total.x1;
-	rep.top           = total.y1;
-	rep.width         = total.x2 - total.x1;
-	rep.height        = total.y2 - total.y1;
-	rep.track_left    = tracking.x1;
-	rep.track_top     = tracking.y1;
-	rep.track_width   = tracking.x2 - tracking.x1;
-	rep.track_height  = tracking.y2 - tracking.y1;
-	rep.border_left   = border[0];
-	rep.border_top    = border[1];
-	rep.border_right  = border[2];
-	rep.border_bottom = border[3];
-    }
-
-    if (client->swapped) {
-	swaps(&rep.sequenceNumber, n);
-	swapl(&rep.length, n);
-	swaps(&rep.timestamp, n);
-	swaps(&rep.left, n);
-	swaps(&rep.top, n);
-	swaps(&rep.width, n);
-	swaps(&rep.height, n);
-	swaps(&rep.track_left, n);
-	swaps(&rep.track_top, n);
-	swaps(&rep.track_width, n);
-	swaps(&rep.track_height, n);
-	swaps(&rep.border_left, n);
-	swaps(&rep.border_top, n);
-	swaps(&rep.border_right, n);
-	swaps(&rep.border_bottom, n);
-    }
-    WriteToClient(client, sizeof(xRRGetPanningReply), (char *)&rep);
-    return client->noClientException;
-}
-
-int
-ProcRRSetPanning (ClientPtr client)
-{
-    REQUEST(xRRSetPanningReq);
-    xRRSetPanningReply	rep;
-    RRCrtcPtr		crtc;
-    ScreenPtr		pScreen;
-    rrScrPrivPtr	pScrPriv;
-    TimeStamp		time;
-    BoxRec		total;
-    BoxRec		tracking;
-    INT16		border[4];
-    int			n;
-    
-    REQUEST_SIZE_MATCH(xRRSetPanningReq);
-    VERIFY_RR_CRTC(stuff->crtc, crtc, DixReadAccess);
-
-    /* All crtcs must be associated with screens before client
-     * requests are processed
-     */
-    pScreen = crtc->pScreen;
-    pScrPriv = rrGetScrPriv(pScreen);
-
-    if (!pScrPriv) {
-	time = currentTime;
-	rep.status = RRSetConfigFailed;
-	goto sendReply;
-    }
-    
-    time = ClientTimeToServerTime(stuff->timestamp);
-    
-    /*
-     * Make sure the requested set-time is not older than
-     * the last set-time
-     */
-    if (CompareTimeStamps (time, pScrPriv->lastSetTime) < 0)
-    {
-	rep.status = RRSetConfigInvalidTime;
-	goto sendReply;
-    }
-
-    if (!pScrPriv->rrGetPanning)
-	return RRErrorBase + BadRRCrtc;
-
-    total.x1    = stuff->left;
-    total.y1    = stuff->top;
-    total.x2    = total.x1 + stuff->width;
-    total.y2    = total.y1 + stuff->height;
-    tracking.x1 = stuff->track_left;
-    tracking.y1 = stuff->track_top;
-    tracking.x2 = tracking.x1 + stuff->track_width;
-    tracking.y2 = tracking.y1 + stuff->track_height;
-    border[0]   = stuff->border_left;
-    border[1]   = stuff->border_top;
-    border[2]   = stuff->border_right;
-    border[3]   = stuff->border_bottom;
-
-    if (! pScrPriv->rrSetPanning (pScreen, crtc, &total, &tracking, border))
-	return BadMatch;
-
-    pScrPriv->lastSetTime = time;
-
-    rep.status = RRSetConfigSuccess;
-
-sendReply:
-    rep.type = X_Reply;
-    rep.sequenceNumber = client->sequence;
-    rep.length = 0;
-    rep.newTimestamp = pScrPriv->lastSetTime.milliseconds;
-
-    if (client->swapped) {
-	swaps(&rep.sequenceNumber, n);
-	swapl(&rep.length, n);
-	swaps(&rep.newTimestamp, n);
-    }
-    WriteToClient(client, sizeof(xRRSetPanningReply), (char *)&rep);
-    return client->noClientException;
-}
-
-int
-ProcRRGetCrtcGammaSize (ClientPtr client)
-{
-    REQUEST(xRRGetCrtcGammaSizeReq);
-    xRRGetCrtcGammaSizeReply	reply;
-    RRCrtcPtr			crtc;
-    int				n;
-
-    REQUEST_SIZE_MATCH(xRRGetCrtcGammaSizeReq);
-    VERIFY_RR_CRTC(stuff->crtc, crtc, DixReadAccess);
-
-    /* Gamma retrieval failed, any better error? */
-    if (!RRCrtcGammaGet(crtc))
-        return RRErrorBase + BadRRCrtc;
-
-    reply.type = X_Reply;
-    reply.sequenceNumber = client->sequence;
-    reply.length = 0;
-    reply.size = crtc->gammaSize;
-    if (client->swapped) {
-	swaps (&reply.sequenceNumber, n);
-	swapl (&reply.length, n);
-	swaps (&reply.size, n);
-    }
-    WriteToClient (client, sizeof (xRRGetCrtcGammaSizeReply), (char *) &reply);
-    return client->noClientException;
-}
-
-int
-ProcRRGetCrtcGamma (ClientPtr client)
-{
-    REQUEST(xRRGetCrtcGammaReq);
-    xRRGetCrtcGammaReply	reply;
-    RRCrtcPtr			crtc;
-    int				n;
-    unsigned long		len;
-    char			*extra = NULL;
-    
-    REQUEST_SIZE_MATCH(xRRGetCrtcGammaReq);
-    VERIFY_RR_CRTC(stuff->crtc, crtc, DixReadAccess);
-
-    /* Gamma retrieval failed, any better error? */
-    if (!RRCrtcGammaGet(crtc))
-        return RRErrorBase + BadRRCrtc;
-
-    len = crtc->gammaSize * 3 * 2;
-    
-    if (crtc->gammaSize) {
-	extra = xalloc(len);
-	if (!extra)
-	    return BadAlloc;
-    }
-
-    reply.type = X_Reply;
-    reply.sequenceNumber = client->sequence;
-    reply.length = bytes_to_int32(len);
-    reply.size = crtc->gammaSize;
-    if (client->swapped) {
-	swaps (&reply.sequenceNumber, n);
-	swapl (&reply.length, n);
-	swaps (&reply.size, n);
-    }
-    WriteToClient (client, sizeof (xRRGetCrtcGammaReply), (char *) &reply);
-    if (crtc->gammaSize)
-    {
-	memcpy(extra, crtc->gammaRed, len);
-	client->pSwapReplyFunc = (ReplySwapPtr)CopySwap16Write;
-	WriteSwappedDataToClient (client, len, extra);
-	xfree(extra);
-    }
-    return client->noClientException;
-}
-
-int
-ProcRRSetCrtcGamma (ClientPtr client)
-{
-    REQUEST(xRRSetCrtcGammaReq);
-    RRCrtcPtr			crtc;
-    unsigned long		len;
-    CARD16			*red, *green, *blue;
-    
-    REQUEST_AT_LEAST_SIZE(xRRSetCrtcGammaReq);
-    VERIFY_RR_CRTC(stuff->crtc, crtc, DixReadAccess);
-    
-    len = client->req_len - bytes_to_int32(sizeof (xRRSetCrtcGammaReq));
-    if (len < (stuff->size * 3 + 1) >> 1)
-	return BadLength;
-
-    if (stuff->size != crtc->gammaSize)
-	return BadMatch;
-    
-    red = (CARD16 *) (stuff + 1);
-    green = red + crtc->gammaSize;
-    blue = green + crtc->gammaSize;
-    
-    RRCrtcGammaSet (crtc, red, green, blue);
-
-    return Success;
-}
-
-/* Version 1.3 additions */
-
-int
-ProcRRSetCrtcTransform (ClientPtr client)
-{
-    REQUEST(xRRSetCrtcTransformReq);
-    RRCrtcPtr		    crtc;
-    PictTransform	    transform;
-    struct pixman_f_transform f_transform, f_inverse;
-    char		    *filter;
-    int			    nbytes;
-    xFixed		    *params;
-    int			    nparams;
-
-    REQUEST_AT_LEAST_SIZE(xRRSetCrtcTransformReq);
-    VERIFY_RR_CRTC(stuff->crtc, crtc, DixReadAccess);
-
-    PictTransform_from_xRenderTransform (&transform, &stuff->transform);
-    pixman_f_transform_from_pixman_transform (&f_transform, &transform);
-    if (!pixman_f_transform_invert (&f_inverse, &f_transform))
-	return BadMatch;
-
-    filter = (char *) (stuff + 1);
-    nbytes = stuff->nbytesFilter;
-    params = (xFixed *) (filter + pad_to_int32(nbytes));
-    nparams = ((xFixed *) stuff + client->req_len) - params;
-    if (nparams < 0)
-	return BadLength;
-
-    return RRCrtcTransformSet (crtc, &transform, &f_transform, &f_inverse,
-			       filter, nbytes, params, nparams);
-}
-
-
-#define CrtcTransformExtra	(SIZEOF(xRRGetCrtcTransformReply) - 32)
-				
-static int
-transform_filter_length (RRTransformPtr transform)
-{
-    int	nbytes, nparams;
-
-    if (transform->filter == NULL)
-	return 0;
-    nbytes = strlen (transform->filter->name);
-    nparams = transform->nparams;
-    return pad_to_int32(nbytes) + (nparams * sizeof (xFixed));
-}
-
-static int
-transform_filter_encode (ClientPtr client, char *output,
-			 CARD16	*nbytesFilter,
-			 CARD16	*nparamsFilter,
-			 RRTransformPtr transform)
-{
-    int	    nbytes, nparams;
-    int	    n;
-
-    if (transform->filter == NULL) {
-	*nbytesFilter = 0;
-	*nparamsFilter = 0;
-	return 0;
-    }
-    nbytes = strlen (transform->filter->name);
-    nparams = transform->nparams;
-    *nbytesFilter = nbytes;
-    *nparamsFilter = nparams;
-    memcpy (output, transform->filter->name, nbytes);
-    while ((nbytes & 3) != 0)
-	output[nbytes++] = 0;
-    memcpy (output + nbytes, transform->params, nparams * sizeof (xFixed));
-    if (client->swapped) {
-	swaps (nbytesFilter, n);
-	swaps (nparamsFilter, n);
-	SwapLongs ((CARD32 *) (output + nbytes), nparams);
-    }
-    nbytes += nparams * sizeof (xFixed);
-    return nbytes;
-}
-
-static void
-transform_encode (ClientPtr client, xRenderTransform *wire, PictTransform *pict)
-{
-    xRenderTransform_from_PictTransform (wire, pict);
-    if (client->swapped)
-	SwapLongs ((CARD32 *) wire, bytes_to_int32(sizeof(xRenderTransform)));
-}
-
-int
-ProcRRGetCrtcTransform (ClientPtr client)
-{
-    REQUEST(xRRGetCrtcTransformReq);
-    xRRGetCrtcTransformReply	*reply;
-    RRCrtcPtr			crtc;
-    int				n, nextra;
-    RRTransformPtr		current, pending;
-    char			*extra;
-
-    REQUEST_SIZE_MATCH (xRRGetCrtcTransformReq);
-    VERIFY_RR_CRTC(stuff->crtc, crtc, DixReadAccess);
-
-    pending = &crtc->client_pending_transform;
-    current = &crtc->client_current_transform;
-
-    nextra = (transform_filter_length (pending) +
-	      transform_filter_length (current));
-
-    reply = xalloc (sizeof (xRRGetCrtcTransformReply) + nextra);
-    if (!reply)
-	return BadAlloc;
-
-    extra = (char *) (reply + 1);
-    reply->type = X_Reply;
-    reply->sequenceNumber = client->sequence;
-    reply->length = bytes_to_int32(CrtcTransformExtra + nextra);
-
-    reply->hasTransforms = crtc->transforms;
-
-    transform_encode (client, &reply->pendingTransform, &pending->transform);
-    extra += transform_filter_encode (client, extra,
-				      &reply->pendingNbytesFilter,
-				      &reply->pendingNparamsFilter,
-				      pending);
-
-    transform_encode (client, &reply->currentTransform, &current->transform);
-    extra += transform_filter_encode (client, extra,
-				      &reply->currentNbytesFilter,
-				      &reply->currentNparamsFilter,
-				      current);
-
-    if (client->swapped) {
-	swaps (&reply->sequenceNumber, n);
-	swapl (&reply->length, n);
-    }
-    WriteToClient (client, sizeof (xRRGetCrtcTransformReply) + nextra, (char *) reply);
-    xfree(reply);
-    return client->noClientException;
-}
+/*

+ * Copyright © 2006 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 "randrstr.h"

+#include "swaprep.h"

+

+RESTYPE	RRCrtcType;

+

+/*

+ * Notify the CRTC of some change

+ */

+void

+RRCrtcChanged (RRCrtcPtr crtc, Bool layoutChanged)

+{

+    ScreenPtr	pScreen = crtc->pScreen;

+

+    crtc->changed = TRUE;

+    if (pScreen)

+    {

+	rrScrPriv(pScreen);

+    

+	pScrPriv->changed = TRUE;

+	/*

+	 * Send ConfigureNotify on any layout change

+	 */

+	if (layoutChanged)

+	    pScrPriv->layoutChanged = TRUE;

+    }

+}

+

+/*

+ * Create a CRTC

+ */

+RRCrtcPtr

+RRCrtcCreate (ScreenPtr pScreen, void *devPrivate)

+{

+    RRCrtcPtr	    crtc;

+    RRCrtcPtr	    *crtcs;

+    rrScrPrivPtr    pScrPriv;

+

+    if (!RRInit())

+	return NULL;

+    

+    pScrPriv = rrGetScrPriv(pScreen);

+

+    /* make space for the crtc pointer */

+    if (pScrPriv->numCrtcs)

+	crtcs = realloc(pScrPriv->crtcs, 

+			  (pScrPriv->numCrtcs + 1) * sizeof (RRCrtcPtr));

+    else

+	crtcs = malloc(sizeof (RRCrtcPtr));

+    if (!crtcs)

+	return FALSE;

+    pScrPriv->crtcs = crtcs;

+    

+    crtc = calloc(1, sizeof (RRCrtcRec));

+    if (!crtc)

+	return NULL;

+    crtc->id = FakeClientID (0);

+    crtc->pScreen = pScreen;

+    crtc->mode = NULL;

+    crtc->x = 0;

+    crtc->y = 0;

+    crtc->rotation = RR_Rotate_0;

+    crtc->rotations = RR_Rotate_0;

+    crtc->outputs = NULL;

+    crtc->numOutputs = 0;

+    crtc->gammaSize = 0;

+    crtc->gammaRed = crtc->gammaBlue = crtc->gammaGreen = NULL;

+    crtc->changed = FALSE;

+    crtc->devPrivate = devPrivate;

+    RRTransformInit (&crtc->client_pending_transform);

+    RRTransformInit (&crtc->client_current_transform);

+    pixman_transform_init_identity (&crtc->transform);

+    pixman_f_transform_init_identity (&crtc->f_transform);

+    pixman_f_transform_init_identity (&crtc->f_inverse);

+

+    if (!AddResource (crtc->id, RRCrtcType, (pointer) crtc))

+	return NULL;

+

+    /* attach the screen and crtc together */

+    crtc->pScreen = pScreen;

+    pScrPriv->crtcs[pScrPriv->numCrtcs++] = crtc;

+    

+    return crtc;

+}

+

+/*

+ * Set the allowed rotations on a CRTC

+ */

+void

+RRCrtcSetRotations (RRCrtcPtr crtc, Rotation rotations)

+{

+    crtc->rotations = rotations;

+}

+

+/*

+ * Set whether transforms are allowed on a CRTC

+ */

+void

+RRCrtcSetTransformSupport (RRCrtcPtr crtc, Bool transforms)

+{

+    crtc->transforms = transforms;

+}

+

+/*

+ * Notify the extension that the Crtc has been reconfigured,

+ * the driver calls this whenever it has updated the mode

+ */

+Bool

+RRCrtcNotify (RRCrtcPtr	    crtc,

+	      RRModePtr	    mode,

+	      int	    x,

+	      int	    y,

+	      Rotation	    rotation,

+	      RRTransformPtr transform,

+	      int	    numOutputs,

+	      RROutputPtr   *outputs)

+{

+    int	    i, j;

+    

+    /*

+     * Check to see if any of the new outputs were

+     * not in the old list and mark them as changed

+     */

+    for (i = 0; i < numOutputs; i++)

+    {

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

+	    if (outputs[i] == crtc->outputs[j])

+		break;

+	if (j == crtc->numOutputs)

+	{

+	    outputs[i]->crtc = crtc;

+	    RROutputChanged (outputs[i], FALSE);

+	    RRCrtcChanged (crtc, FALSE);

+	}

+    }

+    /*

+     * Check to see if any of the old outputs are

+     * not in the new list and mark them as changed

+     */

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

+    {

+	for (i = 0; i < numOutputs; i++)

+	    if (outputs[i] == crtc->outputs[j])

+		break;

+	if (i == numOutputs)

+	{

+	    if (crtc->outputs[j]->crtc == crtc)

+		crtc->outputs[j]->crtc = NULL;

+	    RROutputChanged (crtc->outputs[j], FALSE);

+	    RRCrtcChanged (crtc, FALSE);

+	}

+    }

+    /*

+     * Reallocate the crtc output array if necessary

+     */

+    if (numOutputs != crtc->numOutputs)

+    {

+	RROutputPtr *newoutputs;

+	

+	if (numOutputs)

+	{

+	    if (crtc->numOutputs)

+		newoutputs = realloc(crtc->outputs,

+				    numOutputs * sizeof (RROutputPtr));

+	    else

+		newoutputs = malloc(numOutputs * sizeof (RROutputPtr));

+	    if (!newoutputs)

+		return FALSE;

+	}

+	else

+	{

+	    if (crtc->outputs)

+		free(crtc->outputs);

+	    newoutputs = NULL;

+	}

+	crtc->outputs = newoutputs;

+	crtc->numOutputs = numOutputs;

+    }

+    /*

+     * Copy the new list of outputs into the crtc

+     */

+    memcpy (crtc->outputs, outputs, numOutputs * sizeof (RROutputPtr));

+    /*

+     * Update remaining crtc fields

+     */

+    if (mode != crtc->mode)

+    {

+	if (crtc->mode)

+	    RRModeDestroy (crtc->mode);

+	crtc->mode = mode;

+	if (mode != NULL)

+	    mode->refcnt++;

+	RRCrtcChanged (crtc, TRUE);

+    }

+    if (x != crtc->x)

+    {

+	crtc->x = x;

+	RRCrtcChanged (crtc, TRUE);

+    }

+    if (y != crtc->y)

+    {

+	crtc->y = y;

+	RRCrtcChanged (crtc, TRUE);

+    }

+    if (rotation != crtc->rotation)

+    {

+	crtc->rotation = rotation;

+	RRCrtcChanged (crtc, TRUE);

+    }

+    if (!RRTransformEqual (transform, &crtc->client_current_transform)) {

+	RRTransformCopy (&crtc->client_current_transform, transform);

+	RRCrtcChanged (crtc, TRUE);

+    }

+    if (crtc->changed && mode)

+    {

+	RRTransformCompute (x, y,

+			    mode->mode.width, mode->mode.height,

+			    rotation,

+			    &crtc->client_current_transform,

+			    &crtc->transform, &crtc->f_transform,

+			    &crtc->f_inverse);

+    }

+    return TRUE;

+}

+

+void

+RRDeliverCrtcEvent (ClientPtr client, WindowPtr pWin, RRCrtcPtr crtc)

+{

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+    rrScrPriv (pScreen);

+    xRRCrtcChangeNotifyEvent	ce;

+    RRModePtr	mode = crtc->mode;

+    

+    ce.type = RRNotify + RREventBase;

+    ce.subCode = RRNotify_CrtcChange;

+    ce.sequenceNumber = client->sequence;

+    ce.timestamp = pScrPriv->lastSetTime.milliseconds;

+    ce.window = pWin->drawable.id;

+    ce.crtc = crtc->id;

+    ce.rotation = crtc->rotation;

+    if (mode)

+    {

+	ce.mode = mode->mode.id;

+	ce.x = crtc->x;

+	ce.y = crtc->y;

+	ce.width = mode->mode.width;

+	ce.height = mode->mode.height;

+    }

+    else

+    {

+	ce.mode = None;

+	ce.x = 0;

+	ce.y = 0;

+	ce.width = 0;

+	ce.height = 0;

+    }

+    WriteEventsToClient (client, 1, (xEvent *) &ce);

+}

+

+static Bool

+RRCrtcPendingProperties (RRCrtcPtr crtc)

+{

+    ScreenPtr	pScreen = crtc->pScreen;

+    rrScrPriv(pScreen);

+    int		o;

+

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

+    {

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

+	if (output->crtc == crtc && output->pendingProperties)

+	    return TRUE;

+    }

+    return FALSE;

+}

+

+/*

+ * Request that the Crtc be reconfigured

+ */

+Bool

+RRCrtcSet (RRCrtcPtr    crtc,

+	   RRModePtr	mode,

+	   int		x,

+	   int		y,

+	   Rotation	rotation,

+	   int		numOutputs,

+	   RROutputPtr  *outputs)

+{

+    ScreenPtr	pScreen = crtc->pScreen;

+    Bool	ret = FALSE;

+    rrScrPriv(pScreen);

+

+    /* See if nothing changed */

+    if (crtc->mode == mode &&

+	crtc->x == x &&

+	crtc->y == y &&

+	crtc->rotation == rotation &&

+	crtc->numOutputs == numOutputs &&

+	!memcmp (crtc->outputs, outputs, numOutputs * sizeof (RROutputPtr)) &&

+	!RRCrtcPendingProperties (crtc) &&

+	!RRCrtcPendingTransform (crtc))

+    {

+	ret = TRUE;

+    }

+    else

+    {

+#if RANDR_12_INTERFACE

+	if (pScrPriv->rrCrtcSet)

+	{

+	    ret = (*pScrPriv->rrCrtcSet) (pScreen, crtc, mode, x, y, 

+					  rotation, numOutputs, outputs);

+	}

+	else

+#endif

+	{

+#if RANDR_10_INTERFACE

+	    if (pScrPriv->rrSetConfig)

+	    {

+		RRScreenSize	    size;

+		RRScreenRate	    rate;

+

+		if (!mode)

+		{

+		    RRCrtcNotify (crtc, NULL, x, y, rotation, NULL, 0, NULL);

+		    ret = TRUE;

+		}

+		else

+		{

+		    size.width = mode->mode.width;

+		    size.height = mode->mode.height;

+		    if (outputs[0]->mmWidth && outputs[0]->mmHeight)

+		    {

+			size.mmWidth = outputs[0]->mmWidth;

+			size.mmHeight = outputs[0]->mmHeight;

+		    }

+		    else

+		    {

+			size.mmWidth = pScreen->mmWidth;

+			size.mmHeight = pScreen->mmHeight;

+		    }

+		    size.nRates = 1;

+		    rate.rate = RRVerticalRefresh (&mode->mode);

+		    size.pRates = &rate;

+		    ret = (*pScrPriv->rrSetConfig) (pScreen, rotation, rate.rate, &size);

+		    /*

+		     * Old 1.0 interface tied screen size to mode size

+		     */

+		    if (ret)

+		    {

+			RRCrtcNotify (crtc, mode, x, y, rotation, NULL, 1, outputs);

+			RRScreenSizeNotify (pScreen);

+		    }

+		}

+	    }

+#endif

+	}

+	if (ret)

+	{

+	    int	o;

+	    RRTellChanged (pScreen);

+

+	    for (o = 0; o < numOutputs; o++)

+		RRPostPendingProperties (outputs[o]);

+	}

+    }

+    return ret;

+}

+

+/*

+ * Return crtc transform

+ */

+RRTransformPtr

+RRCrtcGetTransform (RRCrtcPtr crtc)

+{

+    RRTransformPtr  transform = &crtc->client_pending_transform;

+

+    if (pixman_transform_is_identity (&transform->transform))

+	return NULL;

+    return transform;

+}

+

+/*

+ * Check whether the pending and current transforms are the same

+ */

+Bool

+RRCrtcPendingTransform (RRCrtcPtr crtc)

+{

+    return memcmp (&crtc->client_current_transform.transform,

+		   &crtc->client_pending_transform.transform,

+		   sizeof (PictTransform)) != 0;

+}

+

+/*

+ * Destroy a Crtc at shutdown

+ */

+void

+RRCrtcDestroy (RRCrtcPtr crtc)

+{

+    FreeResource (crtc->id, 0);

+}

+

+static int

+RRCrtcDestroyResource (pointer value, XID pid)

+{

+    RRCrtcPtr	crtc = (RRCrtcPtr) value;

+    ScreenPtr	pScreen = crtc->pScreen;

+

+    if (pScreen)

+    {

+	rrScrPriv(pScreen);

+	int		i;

+    

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

+	{

+	    if (pScrPriv->crtcs[i] == crtc)

+	    {

+		memmove (pScrPriv->crtcs + i, pScrPriv->crtcs + i + 1,

+			 (pScrPriv->numCrtcs - (i + 1)) * sizeof (RRCrtcPtr));

+		--pScrPriv->numCrtcs;

+		break;

+	    }

+	}

+    }

+    if (crtc->gammaRed)

+	free(crtc->gammaRed);

+    if (crtc->mode)

+	RRModeDestroy (crtc->mode);

+    free(crtc);

+    return 1;

+}

+

+/*

+ * Request that the Crtc gamma be changed

+ */

+

+Bool

+RRCrtcGammaSet (RRCrtcPtr   crtc,

+		CARD16	    *red,

+		CARD16	    *green,

+		CARD16	    *blue)

+{

+    Bool	ret = TRUE;

+#if RANDR_12_INTERFACE

+    ScreenPtr	pScreen = crtc->pScreen;

+#endif

+    

+    memcpy (crtc->gammaRed, red, crtc->gammaSize * sizeof (CARD16));

+    memcpy (crtc->gammaGreen, green, crtc->gammaSize * sizeof (CARD16));

+    memcpy (crtc->gammaBlue, blue, crtc->gammaSize * sizeof (CARD16));

+#if RANDR_12_INTERFACE

+    if (pScreen)

+    {

+	rrScrPriv(pScreen);

+	if (pScrPriv->rrCrtcSetGamma)

+	    ret = (*pScrPriv->rrCrtcSetGamma) (pScreen, crtc);

+    }

+#endif

+    return ret;

+}

+

+/*

+ * Request current gamma back from the DDX (if possible).

+ * This includes gamma size.

+ */

+Bool

+RRCrtcGammaGet(RRCrtcPtr crtc)

+{

+    Bool ret = TRUE;

+#if RANDR_12_INTERFACE

+    ScreenPtr	pScreen = crtc->pScreen;

+#endif

+

+#if RANDR_12_INTERFACE

+    if (pScreen)

+    {

+        rrScrPriv(pScreen);

+        if (pScrPriv->rrCrtcGetGamma)

+            ret = (*pScrPriv->rrCrtcGetGamma) (pScreen, crtc);

+    }

+#endif

+    return ret;

+}

+

+/*

+ * Notify the extension that the Crtc gamma has been changed

+ * The driver calls this whenever it has changed the gamma values

+ * in the RRCrtcRec

+ */

+

+Bool

+RRCrtcGammaNotify (RRCrtcPtr	crtc)

+{

+    return TRUE;    /* not much going on here */

+}

+

+static void

+RRModeGetScanoutSize (RRModePtr mode, PictTransformPtr transform,

+		      int *width, int *height)

+{

+    BoxRec  box;

+

+    if (mode == NULL) {

+	*width = 0;

+	*height = 0;

+	return;

+    }

+

+    box.x1 = 0;

+    box.y1 = 0;

+    box.x2 = mode->mode.width;

+    box.y2 = mode->mode.height;

+

+    pixman_transform_bounds (transform, &box);

+    *width = box.x2 - box.x1;

+    *height = box.y2 - box.y1;

+}

+

+/**

+ * Returns the width/height that the crtc scans out from the framebuffer

+ */

+void

+RRCrtcGetScanoutSize(RRCrtcPtr crtc, int *width, int *height)

+{

+    return RRModeGetScanoutSize (crtc->mode, &crtc->transform, width, height);

+}

+

+/*

+ * Set the size of the gamma table at server startup time

+ */

+

+Bool

+RRCrtcGammaSetSize (RRCrtcPtr	crtc,

+		    int		size)

+{

+    CARD16  *gamma;

+

+    if (size == crtc->gammaSize)

+	return TRUE;

+    if (size)

+    {

+	gamma = malloc(size * 3 * sizeof (CARD16));

+	if (!gamma)

+	    return FALSE;

+    }

+    else

+	gamma = NULL;

+    if (crtc->gammaRed)

+	free(crtc->gammaRed);

+    crtc->gammaRed = gamma;

+    crtc->gammaGreen = gamma + size;

+    crtc->gammaBlue = gamma + size*2;

+    crtc->gammaSize = size;

+    return TRUE;

+}

+

+/*

+ * Set the pending CRTC transformation

+ */

+

+int

+RRCrtcTransformSet (RRCrtcPtr		crtc,

+		    PictTransformPtr	transform,

+		    struct pixman_f_transform *f_transform,

+		    struct pixman_f_transform *f_inverse,

+		    char		*filter_name,

+		    int			filter_len,

+		    xFixed		*params,

+		    int			nparams)

+{

+    PictFilterPtr   filter = NULL;

+    int		    width = 0, height = 0;

+

+    if (!crtc->transforms)

+	return BadValue;

+

+    if (filter_len)

+    {

+	filter = PictureFindFilter (crtc->pScreen,

+				    filter_name,

+				    filter_len);

+	if (!filter)

+	    return BadName;

+	if (filter->ValidateParams)

+	{

+	    if (!filter->ValidateParams (crtc->pScreen, filter->id,

+					 params, nparams, &width, &height))

+		return BadMatch;

+	}

+	else {

+	    width = filter->width;

+	    height = filter->height;

+	}

+    }

+    else

+    {

+	if (nparams)

+	    return BadMatch;

+    }

+    if (!RRTransformSetFilter (&crtc->client_pending_transform,

+			       filter, params, nparams, width, height))

+	return BadAlloc;

+

+    crtc->client_pending_transform.transform = *transform;

+    crtc->client_pending_transform.f_transform = *f_transform;

+    crtc->client_pending_transform.f_inverse = *f_inverse;

+    return Success;

+}

+

+/*

+ * Initialize crtc type

+ */

+Bool

+RRCrtcInit (void)

+{

+    RRCrtcType = CreateNewResourceType (RRCrtcDestroyResource, "CRTC");

+    if (!RRCrtcType)

+	return FALSE;

+    return TRUE;

+}

+

+int

+ProcRRGetCrtcInfo (ClientPtr client)

+{

+    REQUEST(xRRGetCrtcInfoReq);

+    xRRGetCrtcInfoReply	rep;

+    RRCrtcPtr			crtc;

+    CARD8			*extra;

+    unsigned long		extraLen;

+    ScreenPtr			pScreen;

+    rrScrPrivPtr		pScrPriv;

+    RRModePtr			mode;

+    RROutput			*outputs;

+    RROutput			*possible;

+    int				i, j, k, n;

+    int				width, height;

+    BoxRec			panned_area;

+    

+    REQUEST_SIZE_MATCH(xRRGetCrtcInfoReq);

+    VERIFY_RR_CRTC(stuff->crtc, crtc, DixReadAccess);

+

+    /* All crtcs must be associated with screens before client

+     * requests are processed

+     */

+    pScreen = crtc->pScreen;

+    pScrPriv = rrGetScrPriv(pScreen);

+

+    mode = crtc->mode;

+    

+    rep.type = X_Reply;

+    rep.status = RRSetConfigSuccess;

+    rep.sequenceNumber = client->sequence;

+    rep.length = 0;

+    rep.timestamp = pScrPriv->lastSetTime.milliseconds;

+    if (pScrPriv->rrGetPanning &&

+	pScrPriv->rrGetPanning (pScreen, crtc, &panned_area, NULL, NULL) &&

+	(panned_area.x2 > panned_area.x1) && (panned_area.y2 > panned_area.y1))

+    {

+ 	rep.x = panned_area.x1;

+	rep.y = panned_area.y1;

+	rep.width = panned_area.x2 - panned_area.x1;

+	rep.height = panned_area.y2 - panned_area.y1;

+    }

+    else

+    {

+	RRCrtcGetScanoutSize (crtc, &width, &height);

+	rep.x = crtc->x;

+	rep.y = crtc->y;

+	rep.width = width;

+	rep.height = height;

+    }

+    rep.mode = mode ? mode->mode.id : 0;

+    rep.rotation = crtc->rotation;

+    rep.rotations = crtc->rotations;

+    rep.nOutput = crtc->numOutputs;

+    k = 0;

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

+	for (j = 0; j < pScrPriv->outputs[i]->numCrtcs; j++)

+	    if (pScrPriv->outputs[i]->crtcs[j] == crtc)

+		k++;

+    rep.nPossibleOutput = k;

+    

+    rep.length = rep.nOutput + rep.nPossibleOutput;

+

+    extraLen = rep.length << 2;

+    if (extraLen)

+    {

+	extra = malloc(extraLen);

+	if (!extra)

+	    return BadAlloc;

+    }

+    else

+	extra = NULL;

+

+    outputs = (RROutput *) extra;

+    possible = (RROutput *) (outputs + rep.nOutput);

+    

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

+    {

+	outputs[i] = crtc->outputs[i]->id;

+	if (client->swapped)

+	    swapl (&outputs[i], n);

+    }

+    k = 0;

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

+	for (j = 0; j < pScrPriv->outputs[i]->numCrtcs; j++)

+	    if (pScrPriv->outputs[i]->crtcs[j] == crtc)

+	    {

+		possible[k] = pScrPriv->outputs[i]->id;

+		if (client->swapped)

+		    swapl (&possible[k], n);

+		k++;

+	    }

+    

+    if (client->swapped) {

+	swaps(&rep.sequenceNumber, n);

+	swapl(&rep.length, n);

+	swapl(&rep.timestamp, n);

+	swaps(&rep.x, n);

+	swaps(&rep.y, n);

+	swaps(&rep.width, n);

+	swaps(&rep.height, n);

+	swapl(&rep.mode, n);

+	swaps(&rep.rotation, n);

+	swaps(&rep.rotations, n);

+	swaps(&rep.nOutput, n);

+	swaps(&rep.nPossibleOutput, n);

+    }

+    WriteToClient(client, sizeof(xRRGetCrtcInfoReply), (char *)&rep);

+    if (extraLen)

+    {

+	WriteToClient (client, extraLen, (char *) extra);

+	free(extra);

+    }

+    

+    return Success;

+}

+

+int

+ProcRRSetCrtcConfig (ClientPtr client)

+{

+    REQUEST(xRRSetCrtcConfigReq);

+    xRRSetCrtcConfigReply   rep;

+    ScreenPtr		    pScreen;

+    rrScrPrivPtr	    pScrPriv;

+    RRCrtcPtr		    crtc;

+    RRModePtr		    mode;

+    int			    numOutputs;

+    RROutputPtr		    *outputs = NULL;

+    RROutput		    *outputIds;

+    TimeStamp		    configTime;

+    TimeStamp		    time;

+    Rotation		    rotation;

+    int			    rc, i, j;

+    

+    REQUEST_AT_LEAST_SIZE(xRRSetCrtcConfigReq);

+    numOutputs = (stuff->length - bytes_to_int32(SIZEOF (xRRSetCrtcConfigReq)));

+    

+    VERIFY_RR_CRTC(stuff->crtc, crtc, DixSetAttrAccess);

+

+    if (stuff->mode == None)

+    {

+	mode = NULL;

+	if (numOutputs > 0)

+	    return BadMatch;

+    }

+    else

+    {

+	VERIFY_RR_MODE(stuff->mode, mode, DixSetAttrAccess);

+	if (numOutputs == 0)

+	    return BadMatch;

+    }

+    if (numOutputs)

+    {

+	outputs = malloc(numOutputs * sizeof (RROutputPtr));

+	if (!outputs)

+	    return BadAlloc;

+    }

+    else

+	outputs = NULL;

+    

+    outputIds = (RROutput *) (stuff + 1);

+    for (i = 0; i < numOutputs; i++)

+    {

+	rc = dixLookupResourceByType((pointer *)(outputs + i), outputIds[i],

+				     RROutputType, client, DixSetAttrAccess);

+	if (rc != Success)

+	{

+	    if (outputs)

+		free(outputs);

+	    return (rc == BadValue) ? RRErrorBase + BadRROutput : rc;

+	}

+	/* validate crtc for this output */

+	for (j = 0; j < outputs[i]->numCrtcs; j++)

+	    if (outputs[i]->crtcs[j] == crtc)

+		break;

+	if (j == outputs[i]->numCrtcs)

+	{

+	    if (outputs)

+		free(outputs);

+	    return BadMatch;

+	}

+	/* validate mode for this output */

+	for (j = 0; j < outputs[i]->numModes + outputs[i]->numUserModes; j++)

+	{

+	    RRModePtr	m = (j < outputs[i]->numModes ? 

+			     outputs[i]->modes[j] :

+			     outputs[i]->userModes[j - outputs[i]->numModes]);

+	    if (m == mode)

+		break;

+	}

+	if (j == outputs[i]->numModes + outputs[i]->numUserModes)

+	{

+	    if (outputs)

+		free(outputs);

+	    return BadMatch;

+	}

+    }

+    /* validate clones */

+    for (i = 0; i < numOutputs; i++)

+    {

+	for (j = 0; j < numOutputs; j++)

+	{

+	    int k;

+	    if (i == j)

+		continue;

+	    for (k = 0; k < outputs[i]->numClones; k++)

+	    {

+		if (outputs[i]->clones[k] == outputs[j])

+		    break;

+	    }

+	    if (k == outputs[i]->numClones)

+	    {

+		if (outputs)

+		    free(outputs);

+		return BadMatch;

+	    }

+	}

+    }

+

+    pScreen = crtc->pScreen;

+    pScrPriv = rrGetScrPriv(pScreen);

+    

+    time = ClientTimeToServerTime(stuff->timestamp);

+    configTime = ClientTimeToServerTime(stuff->configTimestamp);

+    

+    if (!pScrPriv)

+    {

+	time = currentTime;

+	rep.status = RRSetConfigFailed;

+	goto sendReply;

+    }

+    

+#if 0

+    /*

+     * if the client's config timestamp is not the same as the last config

+     * timestamp, then the config information isn't up-to-date and

+     * can't even be validated

+     */

+    if (CompareTimeStamps (configTime, pScrPriv->lastConfigTime) != 0)

+    {

+	rep.status = RRSetConfigInvalidConfigTime;

+	goto sendReply;

+    }

+#endif

+    

+    /*

+     * Validate requested rotation

+     */

+    rotation = (Rotation) stuff->rotation;

+

+    /* test the rotation bits only! */

+    switch (rotation & 0xf) {

+    case RR_Rotate_0:

+    case RR_Rotate_90:

+    case RR_Rotate_180:

+    case RR_Rotate_270:

+	break;

+    default:

+	/*

+	 * Invalid rotation

+	 */

+	client->errorValue = stuff->rotation;

+	if (outputs)

+	    free(outputs);

+	return BadValue;

+    }

+

+    if (mode)

+    {

+	if ((~crtc->rotations) & rotation)

+	{

+	    /*

+	     * requested rotation or reflection not supported by screen

+	     */

+	    client->errorValue = stuff->rotation;

+	    if (outputs)

+		free(outputs);

+	    return BadMatch;

+	}

+    

+#ifdef RANDR_12_INTERFACE

+	/*

+	 * Check screen size bounds if the DDX provides a 1.2 interface

+	 * for setting screen size. Else, assume the CrtcSet sets

+	 * the size along with the mode. If the driver supports transforms,

+	 * then it must allow crtcs to display a subset of the screen, so

+	 * only do this check for drivers without transform support.

+	 */

+	if (pScrPriv->rrScreenSetSize && !crtc->transforms)

+	{

+	    int source_width;

+	    int	source_height;

+	    PictTransform transform;

+	    struct pixman_f_transform f_transform, f_inverse;

+

+	    RRTransformCompute (stuff->x, stuff->y,

+				mode->mode.width, mode->mode.height,

+				rotation,

+				&crtc->client_pending_transform,

+				&transform, &f_transform, &f_inverse);

+

+	    RRModeGetScanoutSize (mode, &transform, &source_width, &source_height);

+	    if (stuff->x + source_width > pScreen->width)

+	    {

+		client->errorValue = stuff->x;

+		if (outputs)

+		    free(outputs);

+		return BadValue;

+	    }

+	    

+	    if (stuff->y + source_height > pScreen->height)

+	    {

+		client->errorValue = stuff->y;

+		if (outputs)

+		    free(outputs);

+		return BadValue;

+	    }

+	}

+#endif

+    }

+    

+    /*

+     * Make sure the requested set-time is not older than

+     * the last set-time

+     */

+    if (CompareTimeStamps (time, pScrPriv->lastSetTime) < 0)

+    {

+	rep.status = RRSetConfigInvalidTime;

+	goto sendReply;

+    }

+

+    if (!RRCrtcSet (crtc, mode, stuff->x, stuff->y,

+		   rotation, numOutputs, outputs))

+    {

+	rep.status = RRSetConfigFailed;

+	goto sendReply;

+    }

+    rep.status = RRSetConfigSuccess;

+    pScrPriv->lastSetTime = time;

+    

+sendReply:

+    if (outputs)

+	free(outputs);

+    

+    rep.type = X_Reply;

+    /* rep.status has already been filled in */

+    rep.length = 0;

+    rep.sequenceNumber = client->sequence;

+    rep.newTimestamp = pScrPriv->lastSetTime.milliseconds;

+

+    if (client->swapped) 

+    {

+	int n;

+    	swaps(&rep.sequenceNumber, n);

+    	swapl(&rep.length, n);

+	swapl(&rep.newTimestamp, n);

+    }

+    WriteToClient(client, sizeof(xRRSetCrtcConfigReply), (char *)&rep);

+    

+    return Success;

+}

+

+int

+ProcRRGetPanning (ClientPtr client)

+{

+    REQUEST(xRRGetPanningReq);

+    xRRGetPanningReply	rep;

+    RRCrtcPtr		crtc;

+    ScreenPtr		pScreen;

+    rrScrPrivPtr	pScrPriv;

+    BoxRec		total;

+    BoxRec		tracking;

+    INT16		border[4];

+    int			n;

+    

+    REQUEST_SIZE_MATCH(xRRGetPanningReq);

+    VERIFY_RR_CRTC(stuff->crtc, crtc, DixReadAccess);

+

+    /* All crtcs must be associated with screens before client

+     * requests are processed

+     */

+    pScreen = crtc->pScreen;

+    pScrPriv = rrGetScrPriv(pScreen);

+

+    if (!pScrPriv)

+	return RRErrorBase + BadRRCrtc;

+

+    memset(&rep, 0, sizeof(rep));

+    rep.type = X_Reply;

+    rep.status = RRSetConfigSuccess;

+    rep.sequenceNumber = client->sequence;

+    rep.length = 1;

+    rep.timestamp = pScrPriv->lastSetTime.milliseconds;

+

+    if (pScrPriv->rrGetPanning &&

+	pScrPriv->rrGetPanning (pScreen, crtc, &total, &tracking, border)) {

+	rep.left          = total.x1;

+	rep.top           = total.y1;

+	rep.width         = total.x2 - total.x1;

+	rep.height        = total.y2 - total.y1;

+	rep.track_left    = tracking.x1;

+	rep.track_top     = tracking.y1;

+	rep.track_width   = tracking.x2 - tracking.x1;

+	rep.track_height  = tracking.y2 - tracking.y1;

+	rep.border_left   = border[0];

+	rep.border_top    = border[1];

+	rep.border_right  = border[2];

+	rep.border_bottom = border[3];

+    }

+

+    if (client->swapped) {

+	swaps(&rep.sequenceNumber, n);

+	swapl(&rep.length, n);

+	swaps(&rep.timestamp, n);

+	swaps(&rep.left, n);

+	swaps(&rep.top, n);

+	swaps(&rep.width, n);

+	swaps(&rep.height, n);

+	swaps(&rep.track_left, n);

+	swaps(&rep.track_top, n);

+	swaps(&rep.track_width, n);

+	swaps(&rep.track_height, n);

+	swaps(&rep.border_left, n);

+	swaps(&rep.border_top, n);

+	swaps(&rep.border_right, n);

+	swaps(&rep.border_bottom, n);

+    }

+    WriteToClient(client, sizeof(xRRGetPanningReply), (char *)&rep);

+    return Success;

+}

+

+int

+ProcRRSetPanning (ClientPtr client)

+{

+    REQUEST(xRRSetPanningReq);

+    xRRSetPanningReply	rep;

+    RRCrtcPtr		crtc;

+    ScreenPtr		pScreen;

+    rrScrPrivPtr	pScrPriv;

+    TimeStamp		time;

+    BoxRec		total;

+    BoxRec		tracking;

+    INT16		border[4];

+    int			n;

+    

+    REQUEST_SIZE_MATCH(xRRSetPanningReq);

+    VERIFY_RR_CRTC(stuff->crtc, crtc, DixReadAccess);

+

+    /* All crtcs must be associated with screens before client

+     * requests are processed

+     */

+    pScreen = crtc->pScreen;

+    pScrPriv = rrGetScrPriv(pScreen);

+

+    if (!pScrPriv) {

+	time = currentTime;

+	rep.status = RRSetConfigFailed;

+	goto sendReply;

+    }

+    

+    time = ClientTimeToServerTime(stuff->timestamp);

+    

+    /*

+     * Make sure the requested set-time is not older than

+     * the last set-time

+     */

+    if (CompareTimeStamps (time, pScrPriv->lastSetTime) < 0)

+    {

+	rep.status = RRSetConfigInvalidTime;

+	goto sendReply;

+    }

+

+    if (!pScrPriv->rrGetPanning)

+	return RRErrorBase + BadRRCrtc;

+

+    total.x1    = stuff->left;

+    total.y1    = stuff->top;

+    total.x2    = total.x1 + stuff->width;

+    total.y2    = total.y1 + stuff->height;

+    tracking.x1 = stuff->track_left;

+    tracking.y1 = stuff->track_top;

+    tracking.x2 = tracking.x1 + stuff->track_width;

+    tracking.y2 = tracking.y1 + stuff->track_height;

+    border[0]   = stuff->border_left;

+    border[1]   = stuff->border_top;

+    border[2]   = stuff->border_right;

+    border[3]   = stuff->border_bottom;

+

+    if (! pScrPriv->rrSetPanning (pScreen, crtc, &total, &tracking, border))

+	return BadMatch;

+

+    pScrPriv->lastSetTime = time;

+

+    rep.status = RRSetConfigSuccess;

+

+sendReply:

+    rep.type = X_Reply;

+    rep.sequenceNumber = client->sequence;

+    rep.length = 0;

+    rep.newTimestamp = pScrPriv->lastSetTime.milliseconds;

+

+    if (client->swapped) {

+	swaps(&rep.sequenceNumber, n);

+	swapl(&rep.length, n);

+	swaps(&rep.newTimestamp, n);

+    }

+    WriteToClient(client, sizeof(xRRSetPanningReply), (char *)&rep);

+    return Success;

+}

+

+int

+ProcRRGetCrtcGammaSize (ClientPtr client)

+{

+    REQUEST(xRRGetCrtcGammaSizeReq);

+    xRRGetCrtcGammaSizeReply	reply;

+    RRCrtcPtr			crtc;

+    int				n;

+

+    REQUEST_SIZE_MATCH(xRRGetCrtcGammaSizeReq);

+    VERIFY_RR_CRTC(stuff->crtc, crtc, DixReadAccess);

+

+    /* Gamma retrieval failed, any better error? */

+    if (!RRCrtcGammaGet(crtc))

+        return RRErrorBase + BadRRCrtc;

+

+    reply.type = X_Reply;

+    reply.sequenceNumber = client->sequence;

+    reply.length = 0;

+    reply.size = crtc->gammaSize;

+    if (client->swapped) {

+	swaps (&reply.sequenceNumber, n);

+	swapl (&reply.length, n);

+	swaps (&reply.size, n);

+    }

+    WriteToClient (client, sizeof (xRRGetCrtcGammaSizeReply), (char *) &reply);

+    return Success;

+}

+

+int

+ProcRRGetCrtcGamma (ClientPtr client)

+{

+    REQUEST(xRRGetCrtcGammaReq);

+    xRRGetCrtcGammaReply	reply;

+    RRCrtcPtr			crtc;

+    int				n;

+    unsigned long		len;

+    char			*extra = NULL;

+    

+    REQUEST_SIZE_MATCH(xRRGetCrtcGammaReq);

+    VERIFY_RR_CRTC(stuff->crtc, crtc, DixReadAccess);

+

+    /* Gamma retrieval failed, any better error? */

+    if (!RRCrtcGammaGet(crtc))

+        return RRErrorBase + BadRRCrtc;

+

+    len = crtc->gammaSize * 3 * 2;

+    

+    if (crtc->gammaSize) {

+	extra = malloc(len);

+	if (!extra)

+	    return BadAlloc;

+    }

+

+    reply.type = X_Reply;

+    reply.sequenceNumber = client->sequence;

+    reply.length = bytes_to_int32(len);

+    reply.size = crtc->gammaSize;

+    if (client->swapped) {

+	swaps (&reply.sequenceNumber, n);

+	swapl (&reply.length, n);

+	swaps (&reply.size, n);

+    }

+    WriteToClient (client, sizeof (xRRGetCrtcGammaReply), (char *) &reply);

+    if (crtc->gammaSize)

+    {

+	memcpy(extra, crtc->gammaRed, len);

+	client->pSwapReplyFunc = (ReplySwapPtr)CopySwap16Write;

+	WriteSwappedDataToClient (client, len, extra);

+	free(extra);

+    }

+    return Success;

+}

+

+int

+ProcRRSetCrtcGamma (ClientPtr client)

+{

+    REQUEST(xRRSetCrtcGammaReq);

+    RRCrtcPtr			crtc;

+    unsigned long		len;

+    CARD16			*red, *green, *blue;

+    

+    REQUEST_AT_LEAST_SIZE(xRRSetCrtcGammaReq);

+    VERIFY_RR_CRTC(stuff->crtc, crtc, DixReadAccess);

+    

+    len = client->req_len - bytes_to_int32(sizeof (xRRSetCrtcGammaReq));

+    if (len < (stuff->size * 3 + 1) >> 1)

+	return BadLength;

+

+    if (stuff->size != crtc->gammaSize)

+	return BadMatch;

+    

+    red = (CARD16 *) (stuff + 1);

+    green = red + crtc->gammaSize;

+    blue = green + crtc->gammaSize;

+    

+    RRCrtcGammaSet (crtc, red, green, blue);

+

+    return Success;

+}

+

+/* Version 1.3 additions */

+

+int

+ProcRRSetCrtcTransform (ClientPtr client)

+{

+    REQUEST(xRRSetCrtcTransformReq);

+    RRCrtcPtr		    crtc;

+    PictTransform	    transform;

+    struct pixman_f_transform f_transform, f_inverse;

+    char		    *filter;

+    int			    nbytes;

+    xFixed		    *params;

+    int			    nparams;

+

+    REQUEST_AT_LEAST_SIZE(xRRSetCrtcTransformReq);

+    VERIFY_RR_CRTC(stuff->crtc, crtc, DixReadAccess);

+

+    PictTransform_from_xRenderTransform (&transform, &stuff->transform);

+    pixman_f_transform_from_pixman_transform (&f_transform, &transform);

+    if (!pixman_f_transform_invert (&f_inverse, &f_transform))

+	return BadMatch;

+

+    filter = (char *) (stuff + 1);

+    nbytes = stuff->nbytesFilter;

+    params = (xFixed *) (filter + pad_to_int32(nbytes));

+    nparams = ((xFixed *) stuff + client->req_len) - params;

+    if (nparams < 0)

+	return BadLength;

+

+    return RRCrtcTransformSet (crtc, &transform, &f_transform, &f_inverse,

+			       filter, nbytes, params, nparams);

+}

+

+

+#define CrtcTransformExtra	(SIZEOF(xRRGetCrtcTransformReply) - 32)

+				

+static int

+transform_filter_length (RRTransformPtr transform)

+{

+    int	nbytes, nparams;

+

+    if (transform->filter == NULL)

+	return 0;

+    nbytes = strlen (transform->filter->name);

+    nparams = transform->nparams;

+    return pad_to_int32(nbytes) + (nparams * sizeof (xFixed));

+}

+

+static int

+transform_filter_encode (ClientPtr client, char *output,

+			 CARD16	*nbytesFilter,

+			 CARD16	*nparamsFilter,

+			 RRTransformPtr transform)

+{

+    int	    nbytes, nparams;

+    int	    n;

+

+    if (transform->filter == NULL) {

+	*nbytesFilter = 0;

+	*nparamsFilter = 0;

+	return 0;

+    }

+    nbytes = strlen (transform->filter->name);

+    nparams = transform->nparams;

+    *nbytesFilter = nbytes;

+    *nparamsFilter = nparams;

+    memcpy (output, transform->filter->name, nbytes);

+    while ((nbytes & 3) != 0)

+	output[nbytes++] = 0;

+    memcpy (output + nbytes, transform->params, nparams * sizeof (xFixed));

+    if (client->swapped) {

+	swaps (nbytesFilter, n);

+	swaps (nparamsFilter, n);

+	SwapLongs ((CARD32 *) (output + nbytes), nparams);

+    }

+    nbytes += nparams * sizeof (xFixed);

+    return nbytes;

+}

+

+static void

+transform_encode (ClientPtr client, xRenderTransform *wire, PictTransform *pict)

+{

+    xRenderTransform_from_PictTransform (wire, pict);

+    if (client->swapped)

+	SwapLongs ((CARD32 *) wire, bytes_to_int32(sizeof(xRenderTransform)));

+}

+

+int

+ProcRRGetCrtcTransform (ClientPtr client)

+{

+    REQUEST(xRRGetCrtcTransformReq);

+    xRRGetCrtcTransformReply	*reply;

+    RRCrtcPtr			crtc;

+    int				n, nextra;

+    RRTransformPtr		current, pending;

+    char			*extra;

+

+    REQUEST_SIZE_MATCH (xRRGetCrtcTransformReq);

+    VERIFY_RR_CRTC(stuff->crtc, crtc, DixReadAccess);

+

+    pending = &crtc->client_pending_transform;

+    current = &crtc->client_current_transform;

+

+    nextra = (transform_filter_length (pending) +

+	      transform_filter_length (current));

+

+    reply = malloc(sizeof (xRRGetCrtcTransformReply) + nextra);

+    if (!reply)

+	return BadAlloc;

+

+    extra = (char *) (reply + 1);

+    reply->type = X_Reply;

+    reply->sequenceNumber = client->sequence;

+    reply->length = bytes_to_int32(CrtcTransformExtra + nextra);

+

+    reply->hasTransforms = crtc->transforms;

+

+    transform_encode (client, &reply->pendingTransform, &pending->transform);

+    extra += transform_filter_encode (client, extra,

+				      &reply->pendingNbytesFilter,

+				      &reply->pendingNparamsFilter,

+				      pending);

+

+    transform_encode (client, &reply->currentTransform, &current->transform);

+    extra += transform_filter_encode (client, extra,

+				      &reply->currentNbytesFilter,

+				      &reply->currentNparamsFilter,

+				      current);

+

+    if (client->swapped) {

+	swaps (&reply->sequenceNumber, n);

+	swapl (&reply->length, n);

+    }

+    WriteToClient (client, sizeof (xRRGetCrtcTransformReply) + nextra, (char *) reply);

+    free(reply);

+    return Success;

+}