svn merge ^/branches/released .

4 files changed, 3311 insertions, 3346 deletions

diff --git a/xorg-server/hw/dmx/config/xdmxconfig.c b/xorg-server/hw/dmx/config/xdmxconfig.c
index 033b52512..c67077aec 100644
--- a/xorg-server/hw/dmx/config/xdmxconfig.c
+++ b/xorg-server/hw/dmx/config/xdmxconfig.c
@@ -142,7 +142,7 @@ static void dmxConfigGetDims(int *maxWidth, int *maxHeight)
     DMXConfigEntryPtr e;
     
     *maxWidth = dmxConfigWallWidth  = 0;
-    *maxWidth = dmxConfigWallHeight = 0;
+    *maxHeight = dmxConfigWallHeight = 0;
     if (!dmxConfigCurrent) return;
     
     dmxConfigWallWidth  = dmxConfigCurrent->width;
diff --git a/xorg-server/hw/dmx/dmxextension.c b/xorg-server/hw/dmx/dmxextension.c
index 97f2a04b0..bd326ce2a 100644
--- a/xorg-server/hw/dmx/dmxextension.c
+++ b/xorg-server/hw/dmx/dmxextension.c
@@ -1,1618 +1,1620 @@
-/*

- * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.

- *

- * All Rights Reserved.

- *

- * Permission is hereby granted, free of charge, to any person obtaining

- * a copy of this software and associated documentation files (the

- * "Software"), to deal in the Software without restriction, including

- * without limitation on the rights to use, copy, modify, merge,

- * publish, distribute, sublicense, and/or sell copies of the Software,

- * and to permit persons to whom the Software is furnished to do so,

- * subject to the following conditions:

- *

- * The above copyright notice and this permission notice (including the

- * next paragraph) shall be included in all copies or substantial

- * portions of the Software.

- *

- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

- * NON-INFRINGEMENT.  IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS

- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

- * SOFTWARE.

- */

-

-/*

- * Author:

- *   Rickard E. (Rik) Faith <faith@redhat.com>

- *   Kevin E. Martin <kem@redhat.com>

- *

- */

-

-/** \file

- * This file provides the only interface to the X server extension support

- * in programs/Xserver/Xext.  Those programs should only include dmxext.h

- */

-

-#ifdef HAVE_DMX_CONFIG_H

-#include <dmx-config.h>

-#endif

-

-#include <stdlib.h>

-

-#include "dmx.h"

-#include "dmxinit.h"

-#include "dmxextension.h"

-#include "dmxwindow.h"

-#include "dmxcb.h"

-#include "dmxcursor.h"

-#include "dmxpixmap.h"

-#include "dmxgc.h"

-#include "dmxfont.h"

-#include "dmxcmap.h"

-#include "dmxpict.h"

-#include "dmxinput.h"

-#include "dmxsync.h"

-#include "dmxscrinit.h"

-#include "input/dmxinputinit.h"

-

-#include "windowstr.h"

-#include "inputstr.h"                 /* For DeviceIntRec */

-#include <X11/extensions/dmxproto.h>  /* For DMX_BAD_* */

-#include "cursorstr.h"

-

-/* The default font is declared in dix/globals.c, but is not included in

- * _any_ header files. */

-extern FontPtr  defaultFont;

-    

-/** This routine provides information to the DMX protocol extension

- * about a particular screen. */

-Bool dmxGetScreenAttributes(int physical, DMXScreenAttributesPtr attr)

-{

-    DMXScreenInfo *dmxScreen;

-

-    if (physical < 0 || physical >= dmxNumScreens) return FALSE;

-

-    dmxScreen = &dmxScreens[physical];

-    attr->displayName         = dmxScreen->name;

-#ifdef PANORAMIX

-    attr->logicalScreen       = noPanoramiXExtension ? dmxScreen->index : 0;

-#else

-    attr->logicalScreen       = dmxScreen->index;

-#endif

-

-    attr->screenWindowWidth   = dmxScreen->scrnWidth;

-    attr->screenWindowHeight  = dmxScreen->scrnHeight;

-    attr->screenWindowXoffset = dmxScreen->scrnX;

-    attr->screenWindowYoffset = dmxScreen->scrnY;

-

-    attr->rootWindowWidth     = dmxScreen->rootWidth;

-    attr->rootWindowHeight    = dmxScreen->rootHeight;

-    attr->rootWindowXoffset   = dmxScreen->rootX;

-    attr->rootWindowYoffset   = dmxScreen->rootY;

-

-    attr->rootWindowXorigin   = dmxScreen->rootXOrigin;

-    attr->rootWindowYorigin   = dmxScreen->rootYOrigin;

-

-    return TRUE;

-}

-

-/** This routine provides information to the DMX protocol extension

- * about a particular window. */

-Bool dmxGetWindowAttributes(WindowPtr pWindow, DMXWindowAttributesPtr attr)

-{

-    dmxWinPrivPtr pWinPriv = DMX_GET_WINDOW_PRIV(pWindow);

-

-    attr->screen         = pWindow->drawable.pScreen->myNum;

-    attr->window         = pWinPriv->window;

-

-    attr->pos.x          = pWindow->drawable.x;

-    attr->pos.y          = pWindow->drawable.y;

-    attr->pos.width      = pWindow->drawable.width;

-    attr->pos.height     = pWindow->drawable.height;

-

-    if (!pWinPriv->window || pWinPriv->offscreen) {

-        attr->vis.x      = 0;

-        attr->vis.y      = 0;

-        attr->vis.height = 0;

-        attr->vis.width  = 0;

-        return pWinPriv->window ? TRUE : FALSE;

-    }

-

-                                /* Compute display-relative coordinates */

-    attr->vis.x          = pWindow->drawable.x;

-    attr->vis.y          = pWindow->drawable.y;

-    attr->vis.width      = pWindow->drawable.width;

-    attr->vis.height     = pWindow->drawable.height;

-

-    if (attr->pos.x < 0) {

-        attr->vis.x     -= attr->pos.x;

-        attr->vis.width  = attr->pos.x + attr->pos.width - attr->vis.x;

-    }

-    if (attr->pos.x + attr->pos.width > pWindow->drawable.pScreen->width) {

-        if (attr->pos.x < 0)

-            attr->vis.width  = pWindow->drawable.pScreen->width;

-        else

-            attr->vis.width  = pWindow->drawable.pScreen->width - attr->pos.x;

-    }

-    if (attr->pos.y < 0) {

-        attr->vis.y     -= attr->pos.y;

-        attr->vis.height = attr->pos.y + attr->pos.height - attr->vis.y;

-    }

-    if (attr->pos.y + attr->pos.height > pWindow->drawable.pScreen->height) {

-        if (attr->pos.y < 0)

-            attr->vis.height = pWindow->drawable.pScreen->height;

-        else

-            attr->vis.height = pWindow->drawable.pScreen->height - attr->pos.y;

-    }

-

-                                /* Convert to window-relative coordinates */

-    attr->vis.x -= attr->pos.x;

-    attr->vis.y -= attr->pos.y;

-

-    return TRUE;

-}

-

-void dmxGetDesktopAttributes(DMXDesktopAttributesPtr attr)

-{

-    attr->width  = dmxGlobalWidth;

-    attr->height = dmxGlobalHeight;

-    attr->shiftX = 0;            /* NOTE: The upper left hand corner of */

-    attr->shiftY = 0;            /*       the desktop is always <0,0>. */

-}

-

-/** Return the total number of devices, not just #dmxNumInputs.  The

- * number returned should be the same as that returned by

- * XListInputDevices. */

-int dmxGetInputCount(void)

-{

-    int i, total;

-    

-    for (total = i = 0; i < dmxNumInputs; i++) total += dmxInputs[i].numDevs;

-    return total;

-}

-

-/** Return information about the device with id = \a deviceId.  This

- * information is primarily for the #ProcDMXGetInputAttributes()

- * function, which does not have access to the appropriate data

- * structure. */

-int dmxGetInputAttributes(int deviceId, DMXInputAttributesPtr attr)

-{

-    int          i, j;

-    DMXInputInfo *dmxInput;

-

-    if (deviceId < 0) return -1;

-    for (i = 0; i < dmxNumInputs; i++) {

-        dmxInput = &dmxInputs[i];

-        for (j = 0; j < dmxInput->numDevs; j++) {

-            DMXLocalInputInfoPtr dmxLocal = dmxInput->devs[j];

-            if (deviceId != dmxLocal->pDevice->id) continue;

-            attr->isCore             = !!dmxLocal->isCore;

-            attr->sendsCore          = !!dmxLocal->sendsCore;

-            attr->detached           = !!dmxInput->detached;

-            attr->physicalScreen     = -1;

-            attr->physicalId         = -1;

-            attr->name               = NULL;

-            switch (dmxLocal->extType) {

-            case DMX_LOCAL_TYPE_LOCAL:

-                attr->inputType      = 0;

-                break;

-            case DMX_LOCAL_TYPE_CONSOLE:

-                attr->inputType      = 1;

-                attr->name           = dmxInput->name;

-                attr->physicalId     = dmxLocal->deviceId;

-                break;

-            case DMX_LOCAL_TYPE_BACKEND:

-            case DMX_LOCAL_TYPE_COMMON:

-                attr->inputType      = 2;

-                attr->physicalScreen = dmxInput->scrnIdx;

-                attr->name           = dmxInput->name;

-                attr->physicalId     = dmxLocal->deviceId;

-                break;

-            }

-            return 0;           /* Success */

-        }

-    }

-    return -1;                  /* Failure */

-}

-

-/** Reinitialized the cursor boundaries. */

-static void dmxAdjustCursorBoundaries(void)

-{

-    int           i;

-

-    dmxReInitOrigins();

-    dmxInitOverlap();

-    dmxComputeWidthHeight(DMX_NO_RECOMPUTE_BOUNDING_BOX);

-    dmxConnectionBlockCallback();

-    for (i = 0; i < dmxNumInputs; i++) {

-        DMXInputInfo *dmxInput = &dmxInputs[i];

-	if (!dmxInput->detached) dmxInputReInit(dmxInput);

-    }

-

-    dmxCheckCursor();

-

-    for (i = 0; i < dmxNumInputs; i++) {

-        DMXInputInfo *dmxInput = &dmxInputs[i];

-	if (!dmxInput->detached) dmxInputLateReInit(dmxInput);

-    }

-}

-

-/** Add an input with the specified attributes.  If the input is added,

- * the physical id is returned in \a deviceId. */

-int dmxAddInput(DMXInputAttributesPtr attr, int *id)

-{

-    int retcode = BadValue;

-

-    if (attr->inputType == 1)   /* console */

-        retcode = dmxInputAttachConsole(attr->name, attr->sendsCore, id);

-    else if (attr->inputType == 2)   /* backend */

-        retcode = dmxInputAttachBackend(attr->physicalScreen,

-                                        attr->sendsCore,id);

-

-    if (retcode == Success) {

-        /* Adjust the cursor boundaries */

-        dmxAdjustCursorBoundaries();

-

-        /* Force completion of the changes */

-        dmxSync(NULL, TRUE);

-    }

-

-    return retcode;

-}

-

-/** Remove the input with physical id \a id. */

-int dmxRemoveInput(int id)

-{

-    return dmxInputDetachId(id);

-}

-

-/** Return the value of #dmxNumScreens -- the total number of backend

- * screens in use (these are logical screens and may be larger than the

- * number of backend displays). */

-unsigned long dmxGetNumScreens(void)

-{

-    return dmxNumScreens;

-}

-

-/** Make sure that #dmxCreateAndRealizeWindow has been called for \a

- * pWindow. */

-void dmxForceWindowCreation(WindowPtr pWindow)

-{

-    dmxWinPrivPtr pWinPriv = DMX_GET_WINDOW_PRIV(pWindow);

-    if (!pWinPriv->window) dmxCreateAndRealizeWindow(pWindow, TRUE);

-}

-

-/** Flush pending syncs for all screens. */

-void dmxFlushPendingSyncs(void)

-{

-    dmxSync(NULL, TRUE);

-}

-

-/** Update DMX's screen resources to match those of the newly moved

- *  and/or resized "root" window. */

-void dmxUpdateScreenResources(ScreenPtr pScreen, int x, int y, int w, int h)

-{

-    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];

-    WindowPtr      pRoot     = pScreen->root;

-    WindowPtr      pChild;

-    Bool           anyMarked = FALSE;

-

-    /* Handle special case where width and/or height are zero */

-    if (w == 0 || h == 0) {

-	w = 1;

-	h = 1;

-    }

-

-    /* Change screen size */

-    pScreen->width  = w;

-    pScreen->height = h;

-

-    /* Reset the root window's drawable's size */

-    pRoot->drawable.width  = w;

-    pRoot->drawable.height = h;

-

-    /* Set the root window's new winSize and borderSize */

-    pRoot->winSize.extents.x1 = 0;

-    pRoot->winSize.extents.y1 = 0;

-    pRoot->winSize.extents.x2 = w;

-    pRoot->winSize.extents.y2 = h;

-

-    pRoot->borderSize.extents.x1 = 0;

-    pRoot->borderSize.extents.y1 = 0;

-    pRoot->borderSize.extents.x2 = w;

-    pRoot->borderSize.extents.y2 = h;

-

-    /* Recompute this screen's mmWidth & mmHeight */

-    pScreen->mmWidth =

-	(w * 254 + dmxScreen->beXDPI * 5) / (dmxScreen->beXDPI * 10);

-    pScreen->mmHeight =

-	(h * 254 + dmxScreen->beYDPI * 5) / (dmxScreen->beYDPI * 10);

-

-    /* Recompute this screen's window's clip rects as follows: */

-    /*   1. Mark all of root's children's windows */

-    for (pChild = pRoot->firstChild; pChild; pChild = pChild->nextSib)

-	anyMarked |= pScreen->MarkOverlappedWindows(pChild, pChild,

-						    (WindowPtr *)NULL);

-

-    /*   2. Set the root window's borderClip */

-    pRoot->borderClip.extents.x1 = 0;

-    pRoot->borderClip.extents.y1 = 0;

-    pRoot->borderClip.extents.x2 = w;

-    pRoot->borderClip.extents.y2 = h;

-

-    /*   3. Set the root window's clipList */

-    if (anyMarked) {

-	/* If any windows have been marked, set the root window's

-	 * clipList to be broken since it will be recalculated in

-	 * ValidateTree()

-	 */

-	RegionBreak(&pRoot->clipList);

-    } else {

-	/* Otherwise, we just set it directly since there are no

-	 * windows visible on this screen

-	 */

-	pRoot->clipList.extents.x1 = 0;

-	pRoot->clipList.extents.y1 = 0;

-	pRoot->clipList.extents.x2 = w;

-	pRoot->clipList.extents.y2 = h;

-    }

-

-    /*   4. Revalidate all clip rects and generate expose events */

-    if (anyMarked) {

-	pScreen->ValidateTree(pRoot, NULL, VTBroken);

-	pScreen->HandleExposures(pRoot);

-	if (pScreen->PostValidateTree)

-	    pScreen->PostValidateTree(pRoot, NULL, VTBroken);

-    }

-}

-

-#ifdef PANORAMIX

-#include "panoramiXsrv.h"

-

-/** Change the "screen" window attributes by resizing the actual window

- *  on the back-end display (if necessary). */

-static void dmxConfigureScreenWindow(int idx,

-				     int x, int y, int w, int h)

-{

-    DMXScreenInfo *dmxScreen = &dmxScreens[idx];

-    ScreenPtr      pScreen   = screenInfo.screens[idx];

-

-    /* Resize "screen" window */

-    if (dmxScreen->scrnX      != x ||

-	dmxScreen->scrnY      != y ||

-	dmxScreen->scrnWidth  != w ||

-	dmxScreen->scrnHeight != h) {

-	dmxResizeScreenWindow(pScreen, x, y, w, h);

-    }

-

-    /* Change "screen" window values */

-    dmxScreen->scrnX      = x;

-    dmxScreen->scrnY      = y;

-    dmxScreen->scrnWidth  = w;

-    dmxScreen->scrnHeight = h;

-}

-				     

-/** Change the "root" window position and size by resizing the actual

- *  window on the back-end display (if necessary) and updating all of

- *  DMX's resources by calling #dmxUpdateScreenResources. */

-static void dmxConfigureRootWindow(int idx, int x, int y, int w, int h)

-{

-    DMXScreenInfo *dmxScreen = &dmxScreens[idx];

-    WindowPtr      pRoot     = screenInfo.screens[idx]->root;

-

-    /* NOTE: Either this function or the ones that it calls must handle

-     * the case where w == 0 || h == 0.  Currently, the functions that

-     * this one calls handle that case. */

-

-    /* 1. Resize "root" window */

-    if (dmxScreen->rootX      != x ||

-	dmxScreen->rootY      != y ||

-	dmxScreen->rootWidth  != w ||

-	dmxScreen->rootHeight != h) {

-	dmxResizeRootWindow(pRoot, x, y, w, h);

-    }

-

-    /* 2. Update all of the screen's resources associated with this root

-     *    window */

-    if (dmxScreen->rootWidth  != w ||

-	dmxScreen->rootHeight != h) {

-	dmxUpdateScreenResources(screenInfo.screens[idx], x, y, w, h);

-    }

-

-    /* Change "root" window values */

-    dmxScreen->rootX      = x;

-    dmxScreen->rootY      = y;

-    dmxScreen->rootWidth  = w;

-    dmxScreen->rootHeight = h;

-}

-

-/** Change the "root" window's origin by updating DMX's internal data

- *  structures (dix and Xinerama) to use the new origin and adjust the

- *  positions of windows that overlap this "root" window. */

-static void dmxSetRootWindowOrigin(int idx, int x, int y)

-{

-    DMXScreenInfo *dmxScreen = &dmxScreens[idx];

-    ScreenPtr      pScreen   = screenInfo.screens[idx];

-    WindowPtr      pRoot     = pScreen->root;

-    WindowPtr      pChild;

-    int            xoff;

-    int            yoff;

-

-    /* Change "root" window's origin */

-    dmxScreen->rootXOrigin = x;

-    dmxScreen->rootYOrigin = y;

-

-    /* Compute offsets here in case <x,y> has been changed above */

-    xoff = x - pScreen->x;

-    yoff = y - pScreen->y;

-

-    /* Adjust the root window's position */

-    pScreen->x = dmxScreen->rootXOrigin;

-    pScreen->y = dmxScreen->rootYOrigin;

-

-    /* Recalculate the Xinerama regions and data structs */

-    XineramaReinitData(pScreen);

-

-    /* Adjust each of the root window's children */

-    if (!idx) ReinitializeRootWindow(screenInfo.screens[0]->root, xoff, yoff);

-    pChild = pRoot->firstChild;

-    while (pChild) {

-	/* Adjust child window's position */

-	pScreen->MoveWindow(pChild,

-			    pChild->origin.x - wBorderWidth(pChild) - xoff,

-			    pChild->origin.y - wBorderWidth(pChild) - yoff,

-			    pChild->nextSib,

-			    VTMove);

-

-	/* Note that the call to MoveWindow will eventually call

-	 * dmxPositionWindow which will automatically create a

-	 * window if it is now exposed on screen (for lazy window

-	 * creation optimization) and it will properly set the

-	 * offscreen flag.

-	 */

-

-	pChild = pChild->nextSib;

-    }

-}

-

-/** Configure the attributes of each "screen" and "root" window. */

-int dmxConfigureScreenWindows(int nscreens,

-			      CARD32 *screens,

-			      DMXScreenAttributesPtr attribs,

-			      int *errorScreen)

-{

-    int           i;

-

-    for (i = 0; i < nscreens; i++) {

-	DMXScreenAttributesPtr  attr      = &attribs[i];

-	int                     idx       = screens[i];

-	DMXScreenInfo          *dmxScreen = &dmxScreens[idx];

-

-	if (errorScreen) *errorScreen = i;

-

-	if (!dmxScreen->beDisplay) return DMX_BAD_VALUE;

-

-	/* Check for illegal values */

-	if (idx < 0 || idx >= dmxNumScreens) return BadValue;

-

-	/* The "screen" and "root" windows must have valid sizes */

-	if (attr->screenWindowWidth <= 0 || attr->screenWindowHeight <= 0 ||

-	    attr->rootWindowWidth   <  0 || attr->rootWindowHeight   <  0)

-	    return DMX_BAD_VALUE;

-

-	/* The "screen" window must fit entirely within the BE display */

-	if (attr->screenWindowXoffset < 0 ||

-	    attr->screenWindowYoffset < 0 ||

-	    attr->screenWindowXoffset

-	    + attr->screenWindowWidth  > (unsigned)dmxScreen->beWidth ||

-	    attr->screenWindowYoffset

-	    + attr->screenWindowHeight > (unsigned)dmxScreen->beHeight)

-	    return DMX_BAD_VALUE;

-

-	/* The "root" window must fit entirely within the "screen" window */

-	if (attr->rootWindowXoffset < 0 ||

-	    attr->rootWindowYoffset < 0 ||

-	    attr->rootWindowXoffset

-	    + attr->rootWindowWidth  > attr->screenWindowWidth ||

-	    attr->rootWindowYoffset

-	    + attr->rootWindowHeight > attr->screenWindowHeight)

-	    return DMX_BAD_VALUE;

-

-	/* The "root" window must not expose unaddressable coordinates */

-	if (attr->rootWindowXorigin < 0 ||

-	    attr->rootWindowYorigin < 0 ||

-	    attr->rootWindowXorigin + attr->rootWindowWidth  > 32767 ||

-	    attr->rootWindowYorigin + attr->rootWindowHeight > 32767)

-	    return DMX_BAD_VALUE;

-

-	/* The "root" window must fit within the global bounding box */

-	if (attr->rootWindowXorigin

-	    + attr->rootWindowWidth > (unsigned)dmxGlobalWidth ||

-	    attr->rootWindowYorigin

-	    + attr->rootWindowHeight > (unsigned)dmxGlobalHeight)

-	    return DMX_BAD_VALUE;

-

-	/* FIXME: Handle the rest of the illegal value checking */

-    }

-

-    /* No illegal values found */

-    if (errorScreen) *errorScreen = 0;

-

-    for (i = 0; i < nscreens; i++) {

-	DMXScreenAttributesPtr  attr      = &attribs[i];

-	int                     idx       = screens[i];

-	DMXScreenInfo          *dmxScreen = &dmxScreens[idx];

-

-	dmxLog(dmxInfo, "Changing screen #%d attributes "

-	       "from %dx%d+%d+%d %dx%d+%d+%d +%d+%d "

-	       "to %dx%d+%d+%d %dx%d+%d+%d +%d+%d\n",

-	       idx,

-	       dmxScreen->scrnWidth,      dmxScreen->scrnHeight,

-	       dmxScreen->scrnX,          dmxScreen->scrnY,

-	       dmxScreen->rootWidth,      dmxScreen->rootHeight,

-	       dmxScreen->rootX,          dmxScreen->rootY,

-	       dmxScreen->rootXOrigin,    dmxScreen->rootYOrigin,

-	       attr->screenWindowWidth,   attr->screenWindowHeight,

-	       attr->screenWindowXoffset, attr->screenWindowYoffset,

-	       attr->rootWindowWidth,     attr->rootWindowHeight,

-	       attr->rootWindowXoffset,   attr->rootWindowYoffset,

-	       attr->rootWindowXorigin,   attr->rootWindowYorigin);

-

-	/* Configure "screen" window */

-	dmxConfigureScreenWindow(idx,

-				 attr->screenWindowXoffset,

-				 attr->screenWindowYoffset,

-				 attr->screenWindowWidth,

-				 attr->screenWindowHeight);

-

-	/* Configure "root" window */

-	dmxConfigureRootWindow(idx,

-			       attr->rootWindowXoffset,

-			       attr->rootWindowYoffset,

-			       attr->rootWindowWidth,

-			       attr->rootWindowHeight);

-

-

-	/* Set "root" window's origin */

-	dmxSetRootWindowOrigin(idx,

-			       attr->rootWindowXorigin,

-			       attr->rootWindowYorigin);

-    }

-

-    /* Adjust the cursor boundaries */

-    dmxAdjustCursorBoundaries();

-

-    /* Force completion of the changes */

-    dmxSync(NULL, TRUE);

-

-    return Success;

-}

-

-/** Configure the attributes of the global desktop. */

-int dmxConfigureDesktop(DMXDesktopAttributesPtr attribs)

-{

-    if (attribs->width  <= 0 || attribs->width  >= 32767 ||

-	attribs->height <= 0 || attribs->height >= 32767)

-	return DMX_BAD_VALUE;

-

-    /* If the desktop is shrinking, adjust the "root" windows on each

-     * "screen" window to only show the visible desktop.  Also, handle

-     * the special case where the desktop shrinks such that the it no

-     * longer overlaps an portion of a "screen" window. */

-    if (attribs->width < dmxGlobalWidth || attribs->height < dmxGlobalHeight) {

-	int   i;

-	for (i = 0; i < dmxNumScreens; i++) {

-	    DMXScreenInfo *dmxScreen = &dmxScreens[i];

-	    if (dmxScreen->rootXOrigin

-		+ dmxScreen->rootWidth  > attribs->width ||

-		dmxScreen->rootYOrigin

-		+ dmxScreen->rootHeight > attribs->height) {

-		int  w, h;

-		if ((w = attribs->width  - dmxScreen->rootXOrigin) < 0) w = 0;

-		if ((h = attribs->height - dmxScreen->rootYOrigin) < 0) h = 0;

-		if (w > dmxScreen->scrnWidth)  w = dmxScreen->scrnWidth;

-		if (h > dmxScreen->scrnHeight) h = dmxScreen->scrnHeight;

-		if (w > dmxScreen->rootWidth)  w = dmxScreen->rootWidth;

-		if (h > dmxScreen->rootHeight) h = dmxScreen->rootHeight;

-		dmxConfigureRootWindow(i,

-				       dmxScreen->rootX,

-				       dmxScreen->rootY,

-				       w, h);

-	    }

-	}

-    }

-

-    /* Set the global width/height */

-    dmxSetWidthHeight(attribs->width, attribs->height);

-

-    /* Handle shift[XY] changes */

-    if (attribs->shiftX || attribs->shiftY) {

-	int   i;

-	for (i = 0; i < dmxNumScreens; i++) {

-	    ScreenPtr  pScreen = screenInfo.screens[i];

-	    WindowPtr  pChild  = pScreen->root->firstChild;

-	    while (pChild) {

-		/* Adjust child window's position */

-		pScreen->MoveWindow(pChild,

-				    pChild->origin.x - wBorderWidth(pChild)

-				    - attribs->shiftX,

-				    pChild->origin.y - wBorderWidth(pChild)

-				    - attribs->shiftY,

-				    pChild->nextSib,

-				    VTMove);

-

-		/* Note that the call to MoveWindow will eventually call

-		 * dmxPositionWindow which will automatically create a

-		 * window if it is now exposed on screen (for lazy

-		 * window creation optimization) and it will properly

-		 * set the offscreen flag.

-		 */

-

-		pChild = pChild->nextSib;

-	    }

-	}

-    }

-

-    /* Update connection block, Xinerama, etc. -- these appears to

-     * already be handled in dmxConnectionBlockCallback(), which is

-     * called from dmxAdjustCursorBoundaries() [below]. */

-

-    /* Adjust the cursor boundaries */

-    dmxAdjustCursorBoundaries();

-

-    /* Force completion of the changes */

-    dmxSync(NULL, TRUE);

-

-    return Success;

-}

-#endif

-

-/** Create the scratch GCs per depth. */

-static void dmxBECreateScratchGCs(int scrnNum)

-{

-    ScreenPtr  pScreen = screenInfo.screens[scrnNum];

-    GCPtr     *ppGC    = pScreen->GCperDepth;

-    int        i;

-

-    for (i = 0; i <= pScreen->numDepths; i++)

-	dmxBECreateGC(pScreen, ppGC[i]);

-}

-

-#ifdef PANORAMIX

-static Bool FoundPixImage;

-

-/** Search the Xinerama XRT_PIXMAP resources for the pixmap that needs

- *  to have its image restored.  When it is found, see if there is

- *  another screen with the same image.  If so, copy the pixmap image

- *  from the existing screen to the newly created pixmap. */

-static void dmxBERestorePixmapImage(pointer value, XID id, RESTYPE type,

-				    pointer p)

-{

-    if ((type & TypeMask) == (XRT_PIXMAP & TypeMask)) {

-	PixmapPtr      pDst     = (PixmapPtr)p;

-	int            idx      = pDst->drawable.pScreen->myNum;

-	PanoramiXRes  *pXinPix  = (PanoramiXRes *)value;

-	PixmapPtr      pPix;

-	int            i;

-

-	dixLookupResourceByType((pointer*) &pPix, pXinPix->info[idx].id,

-				RT_PIXMAP, NullClient, DixUnknownAccess);

-	if (pPix != pDst) return; /* Not a match.... Next! */

-

-	for (i = 0; i < PanoramiXNumScreens; i++) {

-	    PixmapPtr      pSrc;

-	    dmxPixPrivPtr  pSrcPriv = NULL;

-

-	    if (i == idx) continue; /* Self replication is bad */

-

-	    dixLookupResourceByType((pointer*) &pSrc, pXinPix->info[i].id,

-				    RT_PIXMAP, NullClient, DixUnknownAccess);

-	    pSrcPriv = DMX_GET_PIXMAP_PRIV(pSrc);

-	    if (pSrcPriv->pixmap) {

-		DMXScreenInfo *dmxSrcScreen = &dmxScreens[i];

-		DMXScreenInfo *dmxDstScreen = &dmxScreens[idx];

-		dmxPixPrivPtr  pDstPriv = DMX_GET_PIXMAP_PRIV(pDst);

-		XImage        *img;

-		int            j;

-		XlibGC         gc = NULL;

-

-		/* This should never happen, but just in case.... */

-		if (pSrc->drawable.width  != pDst->drawable.width ||

-		    pSrc->drawable.height != pDst->drawable.height)

-		    return;

-

-		/* Copy from src pixmap to dst pixmap */

-		img = XGetImage(dmxSrcScreen->beDisplay,

-				pSrcPriv->pixmap,

-				0, 0,

-				pSrc->drawable.width, pSrc->drawable.height,

-				-1,

-				ZPixmap);

-

-		for (j = 0; j < dmxDstScreen->beNumPixmapFormats; j++) {

-		    if (dmxDstScreen->bePixmapFormats[j].depth == img->depth) {

-			unsigned long  m;

-			XGCValues      v;

-

-			m = GCFunction | GCPlaneMask | GCClipMask;

-			v.function = GXcopy;

-			v.plane_mask = AllPlanes;

-			v.clip_mask = None;

-

-			gc = XCreateGC(dmxDstScreen->beDisplay,

-				       dmxDstScreen->scrnDefDrawables[j],

-				       m, &v);

-			break;

-		    }

-		}

-

-		if (gc) {

-		    XPutImage(dmxDstScreen->beDisplay,

-			      pDstPriv->pixmap,

-			      gc, img, 0, 0, 0, 0,

-			      pDst->drawable.width, pDst->drawable.height);

-		    XFreeGC(dmxDstScreen->beDisplay, gc);

-		    FoundPixImage = True;

-		} else {

-		    dmxLog(dmxWarning, "Could not create GC\n");

-		}

-

-		XDestroyImage(img);

-		return;

-	    }

-	}

-    }

-}

-#endif

-

-/** Restore the pixmap image either from another screen or from an image

- *  that was saved when the screen was previously detached. */

-static void dmxBERestorePixmap(PixmapPtr pPixmap)

-{

-#ifdef PANORAMIX

-    int i;

-

-    /* If Xinerama is not active, there's nothing we can do (see comment

-     * in #else below for more info). */

-    if (noPanoramiXExtension) {

-	dmxLog(dmxWarning, "Cannot restore pixmap image\n");

-	return;

-    }

-

-    FoundPixImage = False;

-    for (i = currentMaxClients; --i >= 0; )

-	if (clients[i])

-	    FindAllClientResources(clients[i], dmxBERestorePixmapImage,

-				   (pointer)pPixmap);

-

-    /* No corresponding pixmap image was found on other screens, so we

-     * need to copy it from the saved image when the screen was detached

-     * (if available). */

-    if (!FoundPixImage) {

-	dmxPixPrivPtr  pPixPriv = DMX_GET_PIXMAP_PRIV(pPixmap);

-

-	if (pPixPriv->detachedImage) {

-	    ScreenPtr      pScreen   = pPixmap->drawable.pScreen;

-	    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];

-	    XlibGC         gc        = NULL;

-

-	    for (i = 0; i < dmxScreen->beNumPixmapFormats; i++) {

-		if (dmxScreen->bePixmapFormats[i].depth ==

-		    pPixPriv->detachedImage->depth) {

-		    unsigned long  m;

-		    XGCValues      v;

-

-		    m = GCFunction | GCPlaneMask | GCClipMask;

-		    v.function = GXcopy;

-		    v.plane_mask = AllPlanes;

-		    v.clip_mask = None;

-

-		    gc = XCreateGC(dmxScreen->beDisplay,

-				   dmxScreen->scrnDefDrawables[i],

-				   m, &v);

-		    break;

-		}

-	    }

-

-	    if (gc) {

-		XPutImage(dmxScreen->beDisplay,

-			  pPixPriv->pixmap,

-			  gc,

-			  pPixPriv->detachedImage,

-			  0, 0, 0, 0,

-		      pPixmap->drawable.width, pPixmap->drawable.height);

-		XFreeGC(dmxScreen->beDisplay, gc);

-	    } else {

-		dmxLog(dmxWarning, "Cannot restore pixmap image\n");

-	    }

-

-	    XDestroyImage(pPixPriv->detachedImage);

-	    pPixPriv->detachedImage = NULL;

-	} else {

-	    dmxLog(dmxWarning, "Cannot restore pixmap image\n");

-	}

-    }

-#else

-    /* If Xinerama is not enabled, then there is no other copy of the

-     * pixmap image that we can restore.  Saving all pixmap data is not

-     * a feasible option since there is no mechanism for updating pixmap

-     * data when a screen is detached, which means that the data that

-     * was previously saved would most likely be out of date. */

-    dmxLog(dmxWarning, "Cannot restore pixmap image\n");

-    return;

-#endif

-}

-

-/** Create resources on the back-end server.  This function is called

- *  from #dmxAttachScreen() via the dix layer's FindAllResources

- *  function.  It walks all resources, compares them to the screen

- *  number passed in as \a n and calls the appropriate DMX function to

- *  create the associated resource on the back-end server. */

-static void dmxBECreateResources(pointer value, XID id, RESTYPE type,

-				 pointer n)

-{

-    int        scrnNum = (int)n;

-    ScreenPtr  pScreen = screenInfo.screens[scrnNum];

-

-    if ((type & TypeMask) == (RT_WINDOW & TypeMask)) {

-	/* Window resources are created below in dmxBECreateWindowTree */

-    } else if ((type & TypeMask) == (RT_PIXMAP & TypeMask)) {

-	PixmapPtr  pPix = value;

-	if (pPix->drawable.pScreen->myNum == scrnNum) {

-	    dmxBECreatePixmap(pPix);

-	    dmxBERestorePixmap(pPix);

-	}

-    } else if ((type & TypeMask) == (RT_GC & TypeMask)) {

-	GCPtr  pGC = value;

-	if (pGC->pScreen->myNum == scrnNum) {

-	    /* Create the GC on the back-end server */

-	    dmxBECreateGC(pScreen, pGC);

-	    /* Create any pixmaps associated with this GC */

-	    if (!pGC->tileIsPixel) {

-		dmxBECreatePixmap(pGC->tile.pixmap);

-		dmxBERestorePixmap(pGC->tile.pixmap);

-	    }

-	    if (pGC->stipple != pScreen->PixmapPerDepth[0]) {

-		dmxBECreatePixmap(pGC->stipple);

-		dmxBERestorePixmap(pGC->stipple);

-	    }

-	    if (pGC->font != defaultFont) {

-		(void)dmxBELoadFont(pScreen, pGC->font);

-	    }

-	    /* Update the GC on the back-end server */

-	    dmxChangeGC(pGC, -1L);

-	}

-    } else if ((type & TypeMask) == (RT_FONT & TypeMask)) {

-	(void)dmxBELoadFont(pScreen, (FontPtr)value);

-    } else if ((type & TypeMask) == (RT_CURSOR & TypeMask)) {

-	dmxBECreateCursor(pScreen, (CursorPtr)value);

-    } else if ((type & TypeMask) == (RT_COLORMAP & TypeMask)) {

-	ColormapPtr  pCmap = value;

-	if (pCmap->pScreen->myNum == scrnNum)

-	    (void)dmxBECreateColormap((ColormapPtr)value);

-#if 0

-    /* TODO: Recreate Picture and GlyphSet resources */

-    } else if ((type & TypeMask) == (PictureType & TypeMask)) {

-	/* Picture resources are created when windows are created */

-    } else if ((type & TypeMask) == (GlyphSetType & TypeMask)) {

-	dmxBEFreeGlyphSet(pScreen, (GlyphSetPtr)value);

-#endif

-    } else {

-	/* Other resource types??? */

-    }

-}

-

-/** Create window hierachy on back-end server.  The window tree is

- *  created in a special order (bottom most subwindow first) so that the

- *  #dmxCreateNonRootWindow() function does not need to recursively call

- *  itself to create each window's parents.  This is required so that we

- *  have the opportunity to create each window's border and background

- *  pixmaps (where appropriate) before the window is created. */

-static void dmxBECreateWindowTree(int idx)

-{

-    DMXScreenInfo *dmxScreen = &dmxScreens[idx];

-    WindowPtr      pRoot     = screenInfo.screens[idx]->root;

-    dmxWinPrivPtr  pWinPriv  = DMX_GET_WINDOW_PRIV(pRoot);

-    WindowPtr      pWin;

-

-    /* Create the pixmaps associated with the root window */

-    if (!pRoot->borderIsPixel) {

-	dmxBECreatePixmap(pRoot->border.pixmap);

-	dmxBERestorePixmap(pRoot->border.pixmap);

-    }

-    if (pRoot->backgroundState == BackgroundPixmap) {

-	dmxBECreatePixmap(pRoot->background.pixmap);

-	dmxBERestorePixmap(pRoot->background.pixmap);

-    }

-

-    /* Create root window first */

-    dmxScreen->rootWin = pWinPriv->window = dmxCreateRootWindow(pRoot);

-    XMapWindow(dmxScreen->beDisplay, dmxScreen->rootWin);

-

-    pWin = pRoot->lastChild;

-    while (pWin) {

-	pWinPriv = DMX_GET_WINDOW_PRIV(pWin);

-

-	/* Create the pixmaps regardless of whether or not the

-	 * window is created or not due to lazy window creation.

-	 */

-	if (!pWin->borderIsPixel) {

-	    dmxBECreatePixmap(pWin->border.pixmap);

-	    dmxBERestorePixmap(pWin->border.pixmap);

-	}

-	if (pWin->backgroundState == BackgroundPixmap) {

-	    dmxBECreatePixmap(pWin->background.pixmap);

-	    dmxBERestorePixmap(pWin->background.pixmap);

-	}

-

-	/* Reset the window attributes */

-	dmxGetDefaultWindowAttributes(pWin,

-				      &pWinPriv->cmap,

-				      &pWinPriv->visual);

-

-	/* Create the window */

-	if (pWinPriv->mapped && !pWinPriv->offscreen)

-	    dmxCreateAndRealizeWindow(pWin, TRUE);

-

-	/* Next, create the bottom-most child */

-	if (pWin->lastChild) {

-	    pWin = pWin->lastChild;

-	    continue;

-	}

-

-	/* If the window has no children, move on to the next higher window */

-	while (!pWin->prevSib && (pWin != pRoot))

-	    pWin = pWin->parent;

-

-	if (pWin->prevSib) {

-	    pWin = pWin->prevSib;

-	    continue;

-	}

-

-	/* When we reach the root window, we are finished */

-	if (pWin == pRoot)

-	    break;

-    }

-}

-

-/* Refresh screen by generating exposure events for all windows */

-static void dmxForceExposures(int idx)

-{

-    ScreenPtr      pScreen   = screenInfo.screens[idx];

-    WindowPtr  pRoot     = pScreen->root;

-    Bool       anyMarked = FALSE;

-    WindowPtr  pChild;

-

-    for (pChild = pRoot->firstChild; pChild; pChild = pChild->nextSib)

-	anyMarked |= pScreen->MarkOverlappedWindows(pChild, pChild,

-						    (WindowPtr *)NULL);

-    if (anyMarked) {

-	/* If any windows have been marked, set the root window's

-	 * clipList to be broken since it will be recalculated in

-	 * ValidateTree()

-	 */

-	RegionBreak(&pRoot->clipList);

-	pScreen->ValidateTree(pRoot, NULL, VTBroken);

-	pScreen->HandleExposures(pRoot);

-	if (pScreen->PostValidateTree)

-	    pScreen->PostValidateTree(pRoot, NULL, VTBroken);

-    }

-}

-

-/** Compare the new and old screens to see if they are compatible. */

-static Bool dmxCompareScreens(DMXScreenInfo *new, DMXScreenInfo *old)

-{

-    int i;

-

-    if (new->beWidth != old->beWidth) return FALSE;

-    if (new->beHeight != old->beHeight) return FALSE;

-    if (new->beDepth != old->beDepth) return FALSE;

-    if (new->beBPP != old->beBPP) return FALSE;

-

-    if (new->beNumDepths != old->beNumDepths) return FALSE;

-    for (i = 0; i < old->beNumDepths; i++)

-	if (new->beDepths[i] != old->beDepths[i]) return FALSE;

-

-    if (new->beNumPixmapFormats != old->beNumPixmapFormats) return FALSE;

-    for (i = 0; i < old->beNumPixmapFormats; i++) {

-	if (new->bePixmapFormats[i].depth !=

-	    old->bePixmapFormats[i].depth) return FALSE;

-	if (new->bePixmapFormats[i].bits_per_pixel !=

-	    old->bePixmapFormats[i].bits_per_pixel) return FALSE;

-	if (new->bePixmapFormats[i].scanline_pad !=

-	    old->bePixmapFormats[i].scanline_pad) return FALSE;

-    }

-

-    if (new->beNumVisuals != old->beNumVisuals) return FALSE;

-    for (i = 0; i < old->beNumVisuals; i++) {

-	if (new->beVisuals[i].visualid !=

-	    old->beVisuals[i].visualid) return FALSE;

-	if (new->beVisuals[i].screen !=

-	    old->beVisuals[i].screen) return FALSE;

-	if (new->beVisuals[i].depth !=

-	    old->beVisuals[i].depth) return FALSE;

-	if (new->beVisuals[i].class !=

-	    old->beVisuals[i].class) return FALSE;

-	if (new->beVisuals[i].red_mask !=

-	    old->beVisuals[i].red_mask) return FALSE;

-	if (new->beVisuals[i].green_mask !=

-	    old->beVisuals[i].green_mask) return FALSE;

-	if (new->beVisuals[i].blue_mask !=

-	    old->beVisuals[i].blue_mask) return FALSE;

-	if (new->beVisuals[i].colormap_size !=

-	    old->beVisuals[i].colormap_size) return FALSE;

-	if (new->beVisuals[i].bits_per_rgb !=

-	    old->beVisuals[i].bits_per_rgb) return FALSE;

-    }

-

-    if (new->beDefVisualIndex != old->beDefVisualIndex) return FALSE;

-

-    return TRUE;

-}

-

-/** Restore Render's picture */

-static void dmxBERestoreRenderPict(pointer value, XID id, pointer n)

-{

-    PicturePtr   pPicture = value;               /* The picture */

-    DrawablePtr  pDraw    = pPicture->pDrawable; /* The picture's drawable */

-    int          scrnNum  = (int)n;

-

-    if (pDraw->pScreen->myNum != scrnNum) {

-	/* Picture not on the screen we are restoring*/

-	return;

-    }

-

-    if (pDraw->type == DRAWABLE_PIXMAP) {

-	PixmapPtr  pPixmap = (PixmapPtr)pDraw;

-	

-	/* Create and restore the pixmap drawable */

-	dmxBECreatePixmap(pPixmap);

-	dmxBERestorePixmap(pPixmap);

-    }

-

-    dmxBECreatePicture(pPicture);

-}

-

-/** Restore Render's glyphs */

-static void dmxBERestoreRenderGlyph(pointer value, XID id, pointer n)

-{

-    GlyphSetPtr      glyphSet   = value;

-    int              scrnNum    = (int)n;

-    dmxGlyphPrivPtr  glyphPriv  = DMX_GET_GLYPH_PRIV(glyphSet);

-    DMXScreenInfo   *dmxScreen  = &dmxScreens[scrnNum];

-    GlyphRefPtr      table;

-    char            *images;

-    Glyph           *gids;

-    XGlyphInfo      *glyphs;

-    char            *pos;

-    int              beret;

-    int              len_images = 0;

-    int              i;

-    int              ctr;

-

-    if (glyphPriv->glyphSets[scrnNum]) {

-	/* Only restore glyphs on the screen we are attaching */

-	return;

-    }

-

-    /* First we must create the glyph set on the backend. */

-    if ((beret = dmxBECreateGlyphSet(scrnNum, glyphSet)) != Success) {

-	dmxLog(dmxWarning,

-	       "\tdmxBERestoreRenderGlyph failed to create glyphset!\n");

-	return;

-    }

-

-    /* Now for the complex part, restore the glyph data */

-    table = glyphSet->hash.table;

-

-    /* We need to know how much memory to allocate for this part */

-    for (i = 0; i < glyphSet->hash.hashSet->size; i++) {

-	GlyphRefPtr  gr = &table[i];

-	GlyphPtr     gl = gr->glyph;

-

-	if (!gl || gl == DeletedGlyph) continue;

-	len_images += gl->size - sizeof(gl->info);

-    }

-

-    /* Now allocate the memory we need */

-    images = calloc(len_images, sizeof(char));

-    gids   = malloc(glyphSet->hash.tableEntries*sizeof(Glyph));

-    glyphs = malloc(glyphSet->hash.tableEntries*sizeof(XGlyphInfo));

-

-    pos = images;

-    ctr = 0;

-    

-    /* Fill the allocated memory with the proper data */

-    for (i = 0; i < glyphSet->hash.hashSet->size; i++) {

-	GlyphRefPtr  gr = &table[i];

-	GlyphPtr     gl = gr->glyph;

-

-	if (!gl || gl == DeletedGlyph) continue;

-

-	/* First lets put the data into gids */

-	gids[ctr] = gr->signature;

-

-	/* Next do the glyphs data structures */

-	glyphs[ctr].width  = gl->info.width;

-	glyphs[ctr].height = gl->info.height;

-	glyphs[ctr].x      = gl->info.x;

-	glyphs[ctr].y      = gl->info.y;

-	glyphs[ctr].xOff   = gl->info.xOff;

-	glyphs[ctr].yOff   = gl->info.yOff;

-

-	/* Copy the images from the DIX's data into the buffer */

-	memcpy(pos, gl+1, gl->size - sizeof(gl->info));

-	pos += gl->size - sizeof(gl->info);

-	ctr++;

-    }

-    

-    /* Now restore the glyph data */

-    XRenderAddGlyphs(dmxScreen->beDisplay, glyphPriv->glyphSets[scrnNum],

-		     gids,glyphs, glyphSet->hash.tableEntries, images,

-		     len_images);

-

-    /* Clean up */

-    free(images);

-    free(gids);

-    free(glyphs);    

-}

-

-/** Reattach previously detached back-end screen. */

-int dmxAttachScreen(int idx, DMXScreenAttributesPtr attr)

-{

-    ScreenPtr      pScreen;

-    DMXScreenInfo *dmxScreen;

-    CARD32         scrnNum   = idx;

-    DMXScreenInfo  oldDMXScreen;

-    int            i;

-

-    /* Return failure if dynamic addition/removal of screens is disabled */

-    if (!dmxAddRemoveScreens) {

-	dmxLog(dmxWarning,

-	       "Attempting to add a screen, but the AddRemoveScreen\n");

-	dmxLog(dmxWarning,

-	       "extension has not been enabled.  To enable this extension\n");

-	dmxLog(dmxWarning,

-	       "add the \"-addremovescreens\" option either to the command\n");

-	dmxLog(dmxWarning,

-	       "line or in the configuration file.\n");

-	return 1;

-    }

-

-    /* Cannot add a screen that does not exist */

-    if (idx < 0 || idx >= dmxNumScreens) return 1;

-    pScreen = screenInfo.screens[idx];

-    dmxScreen = &dmxScreens[idx];

-

-    /* Cannot attach to a screen that is already opened */

-    if (dmxScreen->beDisplay) {

-	dmxLog(dmxWarning,

-	       "Attempting to add screen #%d but a screen already exists\n",

-	       idx);

-	return 1;

-    }

-

-    dmxLogOutput(dmxScreen, "Attaching screen #%d\n", idx);

-

-    /* Save old info */

-    oldDMXScreen = *dmxScreen;

-

-    /* Copy the name to the new screen */

-    dmxScreen->name = strdup(attr->displayName);

-

-    /* Open display and get all of the screen info */

-    if (!dmxOpenDisplay(dmxScreen)) {

-	dmxLog(dmxWarning,

-               "dmxOpenDisplay: Unable to open display %s\n",

-               dmxScreen->name);

-

-	/* Restore the old screen */

-	*dmxScreen = oldDMXScreen;

-	return 1;

-    }

-

-    dmxSetErrorHandler(dmxScreen);

-    dmxCheckForWM(dmxScreen);

-    dmxGetScreenAttribs(dmxScreen);

-

-    if (!dmxGetVisualInfo(dmxScreen)) {

-	dmxLog(dmxWarning, "dmxGetVisualInfo: No matching visuals found\n");

-	XFree(dmxScreen->beVisuals);

-	XCloseDisplay(dmxScreen->beDisplay);

-

-	/* Restore the old screen */

-	*dmxScreen = oldDMXScreen;

-	return 1;

-    }

-

-    dmxGetColormaps(dmxScreen);

-    dmxGetPixmapFormats(dmxScreen);

-

-    /* Verify that the screen to be added has the same info as the

-     * previously added screen. */

-    if (!dmxCompareScreens(dmxScreen, &oldDMXScreen)) {

-	dmxLog(dmxWarning,

-	       "New screen data (%s) does not match previously\n",

-	       dmxScreen->name);

-	dmxLog(dmxWarning,

-	       "attached screen data (%s)\n",

-	       oldDMXScreen.name);

-	dmxLog(dmxWarning,

-	       "All data must match in order to attach to screen #%d\n",

-	       idx);

-	XFree(dmxScreen->beVisuals);

-	XFree(dmxScreen->beDepths);

-	XFree(dmxScreen->bePixmapFormats);

-	XCloseDisplay(dmxScreen->beDisplay);

-

-	/* Restore the old screen */

-	*dmxScreen = oldDMXScreen;

-	return 1;

-    }

-

-    /* Initialize the BE screen resources */

-    dmxBEScreenInit(idx, screenInfo.screens[idx]);

-

-    /* TODO: Handle GLX visual initialization.  GLXProxy needs to be

-     * updated to handle dynamic addition/removal of screens. */

-

-    /* Create default stipple */

-    dmxBECreatePixmap(pScreen->PixmapPerDepth[0]);

-    dmxBERestorePixmap(pScreen->PixmapPerDepth[0]);

-

-    /* Create the scratch GCs */

-    dmxBECreateScratchGCs(idx);

-

-    /* Create the default font */

-    (void)dmxBELoadFont(pScreen, defaultFont);

-

-    /* Create all resources that don't depend on windows */

-    for (i = currentMaxClients; --i >= 0; )

-	if (clients[i])

-	    FindAllClientResources(clients[i], dmxBECreateResources,

-				   (pointer)idx);

-

-    /* Create window hierarchy (top down) */

-    dmxBECreateWindowTree(idx);

-

-    /* Restore the picture state for RENDER */

-    for (i = currentMaxClients; --i >= 0; )

-	if (clients[i])

-	    FindClientResourcesByType(clients[i],PictureType, 

-				      dmxBERestoreRenderPict,(pointer)idx);

-

-    /* Restore the glyph state for RENDER */

-    for (i = currentMaxClients; --i >= 0; )

-	if (clients[i])

-	    FindClientResourcesByType(clients[i],GlyphSetType, 

-				      dmxBERestoreRenderGlyph,(pointer)idx);

-

-    /* Refresh screen by generating exposure events for all windows */

-    dmxForceExposures(idx);

-

-    dmxSync(&dmxScreens[idx], TRUE);

-

-    /* We used these to compare the old and new screens.  They are no

-     * longer needed since we have a newly attached screen, so we can

-     * now free the old screen's resources. */

-    XFree(oldDMXScreen.beVisuals);

-    XFree(oldDMXScreen.beDepths);

-    XFree(oldDMXScreen.bePixmapFormats);

-    /* TODO: should oldDMXScreen.name be freed?? */

-

-#ifdef PANORAMIX

-    if (!noPanoramiXExtension)

-	return dmxConfigureScreenWindows(1, &scrnNum, attr, NULL);

-    else

-#endif

-	return 0; /* Success */

-}

-

-/*

- * Resources that may have state on the BE server and need to be freed:

- *

- * RT_NONE

- * RT_WINDOW

- * RT_PIXMAP

- * RT_GC

- * RT_FONT

- * RT_CURSOR

- * RT_COLORMAP

- * RT_CMAPENTRY

- * RT_OTHERCLIENT

- * RT_PASSIVEGRAB

- * XRT_WINDOW

- * XRT_PIXMAP

- * XRT_GC

- * XRT_COLORMAP

- * XRT_PICTURE

- * PictureType

- * PictFormatType

- * GlyphSetType

- * ClientType

- * EventType

- * RT_INPUTCLIENT

- * XETrapType

- * RTCounter

- * RTAwait

- * RTAlarmClient

- * RT_XKBCLIENT

- * RTContext

- * TagResType

- * StalledResType

- * SecurityAuthorizationResType

- * RTEventClient

- * __glXContextRes

- * __glXClientRes

- * __glXPixmapRes

- * __glXWindowRes

- * __glXPbufferRes

- */

-

-#ifdef PANORAMIX

-/** Search the Xinerama XRT_PIXMAP resources for the pixmap that needs

- *  to have its image saved. */

-static void dmxBEFindPixmapImage(pointer value, XID id, RESTYPE type,

-				 pointer p)

-{

-    if ((type & TypeMask) == (XRT_PIXMAP & TypeMask)) {

-	PixmapPtr      pDst     = (PixmapPtr)p;

-	int            idx      = pDst->drawable.pScreen->myNum;

-	PanoramiXRes  *pXinPix  = (PanoramiXRes *)value;

-	PixmapPtr      pPix;

-	int            i;

-

-	dixLookupResourceByType((pointer*) &pPix, pXinPix->info[idx].id,

-				RT_PIXMAP, NullClient, DixUnknownAccess);

-	if (pPix != pDst) return; /* Not a match.... Next! */

-

-	for (i = 0; i < PanoramiXNumScreens; i++) {

-	    PixmapPtr      pSrc;

-	    dmxPixPrivPtr  pSrcPriv = NULL;

-

-	    if (i == idx) continue; /* Self replication is bad */

-

-	    dixLookupResourceByType((pointer*) &pSrc, pXinPix->info[i].id,

-				    RT_PIXMAP, NullClient, DixUnknownAccess);

-	    pSrcPriv = DMX_GET_PIXMAP_PRIV(pSrc);

-	    if (pSrcPriv->pixmap) {

-		FoundPixImage = True;

-		return;

-	    }

-	}

-    }

-}

-#endif

-

-/** Save the pixmap image only when there is not another screen with

- *  that pixmap from which the image can be read when the screen is

- *  reattached.  To do this, we first try to find a pixmap on another

- *  screen corresponding to the one we are trying to save.  If we find

- *  one, then we do not need to save the image data since during

- *  reattachment, the image data can be read from that other pixmap.

- *  However, if we do not find one, then we need to save the image data.

- *  The common case for these are for the default stipple and root

- *  tile. */

-static void dmxBESavePixmap(PixmapPtr pPixmap)

-{

-#ifdef PANORAMIX

-    int i;

-

-    /* If Xinerama is not active, there's nothing we can do (see comment

-     * in #else below for more info). */

-    if (noPanoramiXExtension) return;

-

-    FoundPixImage = False;

-    for (i = currentMaxClients; --i >= 0; )

-	if (clients[i])

-	    FindAllClientResources(clients[i], dmxBEFindPixmapImage,

-				   (pointer)pPixmap);

-

-    /* Save the image only if there is no other screens that have a

-     * pixmap that corresponds to the one we are trying to save. */

-    if (!FoundPixImage) {

-	dmxPixPrivPtr  pPixPriv = DMX_GET_PIXMAP_PRIV(pPixmap);

-

-	if (!pPixPriv->detachedImage) {

-	    ScreenPtr      pScreen   = pPixmap->drawable.pScreen;

-	    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];

-

-	    pPixPriv->detachedImage = XGetImage(dmxScreen->beDisplay,

-						pPixPriv->pixmap,

-						0, 0,

-						pPixmap->drawable.width,

-						pPixmap->drawable.height,

-						-1,

-						ZPixmap);

-	    if (!pPixPriv->detachedImage)

-		dmxLog(dmxWarning, "Cannot save pixmap image\n");

-	}

-    }

-#else

-    /* NOTE: The only time there is a pixmap on another screen that

-     * corresponds to the one we are trying to save is when Xinerama is

-     * active.  Otherwise, the pixmap image data is only stored on a

-     * single screen, which means that once it is detached, that data is

-     * lost.  We could save the data here, but then that would require

-     * us to implement the ability for Xdmx to keep the pixmap up to

-     * date while the screen is detached, which is beyond the scope of

-     * the current project. */

-    return;

-#endif

-}

-

-/** Destroy resources on the back-end server.  This function is called

- *  from #dmxDetachScreen() via the dix layer's FindAllResources

- *  function.  It walks all resources, compares them to the screen

- *  number passed in as \a n and calls the appropriate DMX function to

- *  free the associated resource on the back-end server. */

-static void dmxBEDestroyResources(pointer value, XID id, RESTYPE type,

-				  pointer n)

-{

-    int        scrnNum = (int)n;

-    ScreenPtr  pScreen = screenInfo.screens[scrnNum];

-

-    if ((type & TypeMask) == (RT_WINDOW & TypeMask)) {

-	/* Window resources are destroyed below in dmxBEDestroyWindowTree */

-    } else if ((type & TypeMask) == (RT_PIXMAP & TypeMask)) {

-	PixmapPtr  pPix = value;

-	if (pPix->drawable.pScreen->myNum == scrnNum) {

-	    dmxBESavePixmap(pPix);

-	    dmxBEFreePixmap(pPix);

-	}

-    } else if ((type & TypeMask) == (RT_GC & TypeMask)) {

-	GCPtr  pGC = value;

-	if (pGC->pScreen->myNum == scrnNum)

-	    dmxBEFreeGC(pGC);

-    } else if ((type & TypeMask) == (RT_FONT & TypeMask)) {

-	dmxBEFreeFont(pScreen, (FontPtr)value);

-    } else if ((type & TypeMask) == (RT_CURSOR & TypeMask)) {

-	dmxBEFreeCursor(pScreen, (CursorPtr)value);

-    } else if ((type & TypeMask) == (RT_COLORMAP & TypeMask)) {

-	ColormapPtr  pCmap = value;

-	if (pCmap->pScreen->myNum == scrnNum)

-	    dmxBEFreeColormap((ColormapPtr)value);

-    } else if ((type & TypeMask) == (PictureType & TypeMask)) {

-	PicturePtr  pPict = value;

-	if (pPict->pDrawable->pScreen->myNum == scrnNum) {

-	    /* Free the pixmaps on the backend if needed */

-	    if (pPict->pDrawable->type == DRAWABLE_PIXMAP) {

-		PixmapPtr pPixmap = (PixmapPtr)(pPict->pDrawable);

-		dmxBESavePixmap(pPixmap);

-		dmxBEFreePixmap(pPixmap);

-	    }

-	    dmxBEFreePicture((PicturePtr)value);

-	}

-    } else if ((type & TypeMask) == (GlyphSetType & TypeMask)) {

-	dmxBEFreeGlyphSet(pScreen, (GlyphSetPtr)value);

-    } else {

-	/* Other resource types??? */

-    }

-}

-

-/** Destroy the scratch GCs that are created per depth. */

-static void dmxBEDestroyScratchGCs(int scrnNum)

-{

-    ScreenPtr  pScreen = screenInfo.screens[scrnNum];

-    GCPtr     *ppGC    = pScreen->GCperDepth;

-    int        i;

-

-    for (i = 0; i <= pScreen->numDepths; i++)

-	dmxBEFreeGC(ppGC[i]);

-}

-

-/** Destroy window hierachy on back-end server.  To ensure that all

- *  XDestroyWindow() calls succeed, they must be performed in a bottom

- *  up order so that windows are not destroyed before their children.

- *  XDestroyWindow(), which is called from #dmxBEDestroyWindow(), will

- *  destroy a window as well as all of it's children. */

-static void dmxBEDestroyWindowTree(int idx)

-{

-    WindowPtr  pWin   = screenInfo.screens[idx]->root;

-    WindowPtr  pChild = pWin;

-

-    while (1) {

-	if (pChild->firstChild) {

-	    pChild = pChild->firstChild;

-	    continue;

-	}

-

-	/* Destroy the window */

-	dmxBEDestroyWindow(pChild);

-

-	/* Make sure we destroy the window's border and background

-	 * pixmaps if they exist */

-	if (!pChild->borderIsPixel) {

-	    dmxBESavePixmap(pChild->border.pixmap);

-	    dmxBEFreePixmap(pChild->border.pixmap);

-	}

-	if (pChild->backgroundState == BackgroundPixmap) {

-	    dmxBESavePixmap(pChild->background.pixmap);

-	    dmxBEFreePixmap(pChild->background.pixmap);

-	}

-

-	while (!pChild->nextSib && (pChild != pWin)) {

-	    pChild = pChild->parent;

-	    dmxBEDestroyWindow(pChild);

-	    if (!pChild->borderIsPixel) {

-		dmxBESavePixmap(pChild->border.pixmap);

-		dmxBEFreePixmap(pChild->border.pixmap);

-	    }

-	    if (pChild->backgroundState == BackgroundPixmap) {

-		dmxBESavePixmap(pChild->background.pixmap);

-		dmxBEFreePixmap(pChild->background.pixmap);

-	    }

-	}

-

-	if (pChild == pWin)

-	    break;

-

-	pChild = pChild->nextSib;

-    }

-}

-

-/** Detach back-end screen. */

-int dmxDetachScreen(int idx)

-{

-    DMXScreenInfo *dmxScreen = &dmxScreens[idx];

-    int            i;

-

-    /* Return failure if dynamic addition/removal of screens is disabled */

-    if (!dmxAddRemoveScreens) {

-	dmxLog(dmxWarning,

-	       "Attempting to remove a screen, but the AddRemoveScreen\n");

-	dmxLog(dmxWarning,

-	       "extension has not been enabled.  To enable this extension\n");

-	dmxLog(dmxWarning,

-	       "add the \"-addremovescreens\" option either to the command\n");

-	dmxLog(dmxWarning,

-	       "line or in the configuration file.\n");

-	return 1;

-    }

-

-    /* Cannot remove a screen that does not exist */

-    if (idx < 0 || idx >= dmxNumScreens) return 1;

-

-    /* Cannot detach from a screen that is not opened */

-    if (!dmxScreen->beDisplay) {

-	dmxLog(dmxWarning,

-	       "Attempting to remove screen #%d but it has not been opened\n",

-	       idx);

-	return 1;

-    }

-

-    dmxLogOutput(dmxScreen, "Detaching screen #%d\n", idx);

-

-    /* Detach input */

-    dmxInputDetachAll(dmxScreen);

-

-    /* Save all relevant state (TODO) */

-

-    /* Free all non-window resources related to this screen */

-    for (i = currentMaxClients; --i >= 0; )

-	if (clients[i])

-	    FindAllClientResources(clients[i], dmxBEDestroyResources,

-				   (pointer)idx);

-

-    /* Free scratch GCs */

-    dmxBEDestroyScratchGCs(idx);

-

-    /* Free window resources related to this screen */

-    dmxBEDestroyWindowTree(idx);

-

-    /* Free default stipple */

-    dmxBESavePixmap(screenInfo.screens[idx]->PixmapPerDepth[0]);

-    dmxBEFreePixmap(screenInfo.screens[idx]->PixmapPerDepth[0]);

-

-    /* Free the remaining screen resources and close the screen */

-    dmxBECloseScreen(screenInfo.screens[idx]);

-

-    /* Adjust the cursor boundaries (paints detached console window) */

-    dmxAdjustCursorBoundaries();

-

-    return 0; /* Success */

-}

+/*
+ * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.
+ *
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation on the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT.  IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/*
+ * Author:
+ *   Rickard E. (Rik) Faith <faith@redhat.com>
+ *   Kevin E. Martin <kem@redhat.com>
+ *
+ */
+
+/** \file
+ * This file provides the only interface to the X server extension support
+ * in programs/Xserver/Xext.  Those programs should only include dmxext.h
+ */
+
+#ifdef HAVE_DMX_CONFIG_H
+#include <dmx-config.h>
+#endif
+
+#include <stdlib.h>
+
+#include "dmx.h"
+#include "dmxinit.h"
+#include "dmxextension.h"
+#include "dmxwindow.h"
+#include "dmxcb.h"
+#include "dmxcursor.h"
+#include "dmxpixmap.h"
+#include "dmxgc.h"
+#include "dmxfont.h"
+#include "dmxcmap.h"
+#include "dmxpict.h"
+#include "dmxinput.h"
+#include "dmxsync.h"
+#include "dmxscrinit.h"
+#include "input/dmxinputinit.h"
+
+#include "windowstr.h"
+#include "inputstr.h"                 /* For DeviceIntRec */
+#include <X11/extensions/dmxproto.h>  /* For DMX_BAD_* */
+#include "cursorstr.h"
+
+/* The default font is declared in dix/globals.c, but is not included in
+ * _any_ header files. */
+extern FontPtr  defaultFont;
+    
+/** This routine provides information to the DMX protocol extension
+ * about a particular screen. */
+Bool dmxGetScreenAttributes(int physical, DMXScreenAttributesPtr attr)
+{
+    DMXScreenInfo *dmxScreen;
+
+    if (physical < 0 || physical >= dmxNumScreens) return FALSE;
+
+    dmxScreen = &dmxScreens[physical];
+    attr->displayName         = dmxScreen->name;
+#ifdef PANORAMIX
+    attr->logicalScreen       = noPanoramiXExtension ? dmxScreen->index : 0;
+#else
+    attr->logicalScreen       = dmxScreen->index;
+#endif
+
+    attr->screenWindowWidth   = dmxScreen->scrnWidth;
+    attr->screenWindowHeight  = dmxScreen->scrnHeight;
+    attr->screenWindowXoffset = dmxScreen->scrnX;
+    attr->screenWindowYoffset = dmxScreen->scrnY;
+
+    attr->rootWindowWidth     = dmxScreen->rootWidth;
+    attr->rootWindowHeight    = dmxScreen->rootHeight;
+    attr->rootWindowXoffset   = dmxScreen->rootX;
+    attr->rootWindowYoffset   = dmxScreen->rootY;
+
+    attr->rootWindowXorigin   = dmxScreen->rootXOrigin;
+    attr->rootWindowYorigin   = dmxScreen->rootYOrigin;
+
+    return TRUE;
+}
+
+/** This routine provides information to the DMX protocol extension
+ * about a particular window. */
+Bool dmxGetWindowAttributes(WindowPtr pWindow, DMXWindowAttributesPtr attr)
+{
+    dmxWinPrivPtr pWinPriv = DMX_GET_WINDOW_PRIV(pWindow);
+
+    attr->screen         = pWindow->drawable.pScreen->myNum;
+    attr->window         = pWinPriv->window;
+
+    attr->pos.x          = pWindow->drawable.x;
+    attr->pos.y          = pWindow->drawable.y;
+    attr->pos.width      = pWindow->drawable.width;
+    attr->pos.height     = pWindow->drawable.height;
+
+    if (!pWinPriv->window || pWinPriv->offscreen) {
+        attr->vis.x      = 0;
+        attr->vis.y      = 0;
+        attr->vis.height = 0;
+        attr->vis.width  = 0;
+        return pWinPriv->window ? TRUE : FALSE;
+    }
+
+                                /* Compute display-relative coordinates */
+    attr->vis.x          = pWindow->drawable.x;
+    attr->vis.y          = pWindow->drawable.y;
+    attr->vis.width      = pWindow->drawable.width;
+    attr->vis.height     = pWindow->drawable.height;
+
+    if (attr->pos.x < 0) {
+        attr->vis.x     -= attr->pos.x;
+        attr->vis.width  = attr->pos.x + attr->pos.width - attr->vis.x;
+    }
+    if (attr->pos.x + attr->pos.width > pWindow->drawable.pScreen->width) {
+        if (attr->pos.x < 0)
+            attr->vis.width  = pWindow->drawable.pScreen->width;
+        else
+            attr->vis.width  = pWindow->drawable.pScreen->width - attr->pos.x;
+    }
+    if (attr->pos.y < 0) {
+        attr->vis.y     -= attr->pos.y;
+        attr->vis.height = attr->pos.y + attr->pos.height - attr->vis.y;
+    }
+    if (attr->pos.y + attr->pos.height > pWindow->drawable.pScreen->height) {
+        if (attr->pos.y < 0)
+            attr->vis.height = pWindow->drawable.pScreen->height;
+        else
+            attr->vis.height = pWindow->drawable.pScreen->height - attr->pos.y;
+    }
+
+                                /* Convert to window-relative coordinates */
+    attr->vis.x -= attr->pos.x;
+    attr->vis.y -= attr->pos.y;
+
+    return TRUE;
+}
+
+void dmxGetDesktopAttributes(DMXDesktopAttributesPtr attr)
+{
+    attr->width  = dmxGlobalWidth;
+    attr->height = dmxGlobalHeight;
+    attr->shiftX = 0;            /* NOTE: The upper left hand corner of */
+    attr->shiftY = 0;            /*       the desktop is always <0,0>. */
+}
+
+/** Return the total number of devices, not just #dmxNumInputs.  The
+ * number returned should be the same as that returned by
+ * XListInputDevices. */
+int dmxGetInputCount(void)
+{
+    int i, total;
+    
+    for (total = i = 0; i < dmxNumInputs; i++) total += dmxInputs[i].numDevs;
+    return total;
+}
+
+/** Return information about the device with id = \a deviceId.  This
+ * information is primarily for the #ProcDMXGetInputAttributes()
+ * function, which does not have access to the appropriate data
+ * structure. */
+int dmxGetInputAttributes(int deviceId, DMXInputAttributesPtr attr)
+{
+    int          i, j;
+    DMXInputInfo *dmxInput;
+
+    if (deviceId < 0) return -1;
+    for (i = 0; i < dmxNumInputs; i++) {
+        dmxInput = &dmxInputs[i];
+        for (j = 0; j < dmxInput->numDevs; j++) {
+            DMXLocalInputInfoPtr dmxLocal = dmxInput->devs[j];
+            if (deviceId != dmxLocal->pDevice->id) continue;
+            attr->isCore             = !!dmxLocal->isCore;
+            attr->sendsCore          = !!dmxLocal->sendsCore;
+            attr->detached           = !!dmxInput->detached;
+            attr->physicalScreen     = -1;
+            attr->physicalId         = -1;
+            attr->name               = NULL;
+            switch (dmxLocal->extType) {
+            case DMX_LOCAL_TYPE_LOCAL:
+                attr->inputType      = 0;
+                break;
+            case DMX_LOCAL_TYPE_CONSOLE:
+                attr->inputType      = 1;
+                attr->name           = dmxInput->name;
+                attr->physicalId     = dmxLocal->deviceId;
+                break;
+            case DMX_LOCAL_TYPE_BACKEND:
+            case DMX_LOCAL_TYPE_COMMON:
+                attr->inputType      = 2;
+                attr->physicalScreen = dmxInput->scrnIdx;
+                attr->name           = dmxInput->name;
+                attr->physicalId     = dmxLocal->deviceId;
+                break;
+            }
+            return 0;           /* Success */
+        }
+    }
+    return -1;                  /* Failure */
+}
+
+/** Reinitialized the cursor boundaries. */
+static void dmxAdjustCursorBoundaries(void)
+{
+    int           i;
+
+    dmxReInitOrigins();
+    dmxInitOverlap();
+    dmxComputeWidthHeight(DMX_NO_RECOMPUTE_BOUNDING_BOX);
+    dmxConnectionBlockCallback();
+    for (i = 0; i < dmxNumInputs; i++) {
+        DMXInputInfo *dmxInput = &dmxInputs[i];
+	if (!dmxInput->detached) dmxInputReInit(dmxInput);
+    }
+
+    dmxCheckCursor();
+
+    for (i = 0; i < dmxNumInputs; i++) {
+        DMXInputInfo *dmxInput = &dmxInputs[i];
+	if (!dmxInput->detached) dmxInputLateReInit(dmxInput);
+    }
+}
+
+/** Add an input with the specified attributes.  If the input is added,
+ * the physical id is returned in \a deviceId. */
+int dmxAddInput(DMXInputAttributesPtr attr, int *id)
+{
+    int retcode = BadValue;
+
+    if (attr->inputType == 1)   /* console */
+        retcode = dmxInputAttachConsole(attr->name, attr->sendsCore, id);
+    else if (attr->inputType == 2)   /* backend */
+        retcode = dmxInputAttachBackend(attr->physicalScreen,
+                                        attr->sendsCore,id);
+
+    if (retcode == Success) {
+        /* Adjust the cursor boundaries */
+        dmxAdjustCursorBoundaries();
+
+        /* Force completion of the changes */
+        dmxSync(NULL, TRUE);
+    }
+
+    return retcode;
+}
+
+/** Remove the input with physical id \a id. */
+int dmxRemoveInput(int id)
+{
+    return dmxInputDetachId(id);
+}
+
+/** Return the value of #dmxNumScreens -- the total number of backend
+ * screens in use (these are logical screens and may be larger than the
+ * number of backend displays). */
+unsigned long dmxGetNumScreens(void)
+{
+    return dmxNumScreens;
+}
+
+/** Make sure that #dmxCreateAndRealizeWindow has been called for \a
+ * pWindow. */
+void dmxForceWindowCreation(WindowPtr pWindow)
+{
+    dmxWinPrivPtr pWinPriv = DMX_GET_WINDOW_PRIV(pWindow);
+    if (!pWinPriv->window) dmxCreateAndRealizeWindow(pWindow, TRUE);
+}
+
+/** Flush pending syncs for all screens. */
+void dmxFlushPendingSyncs(void)
+{
+    dmxSync(NULL, TRUE);
+}
+
+/** Update DMX's screen resources to match those of the newly moved
+ *  and/or resized "root" window. */
+void dmxUpdateScreenResources(ScreenPtr pScreen, int x, int y, int w, int h)
+{
+    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+    WindowPtr      pRoot     = pScreen->root;
+    WindowPtr      pChild;
+    Bool           anyMarked = FALSE;
+
+    /* Handle special case where width and/or height are zero */
+    if (w == 0 || h == 0) {
+	w = 1;
+	h = 1;
+    }
+
+    /* Change screen size */
+    pScreen->width  = w;
+    pScreen->height = h;
+
+    /* Reset the root window's drawable's size */
+    pRoot->drawable.width  = w;
+    pRoot->drawable.height = h;
+
+    /* Set the root window's new winSize and borderSize */
+    pRoot->winSize.extents.x1 = 0;
+    pRoot->winSize.extents.y1 = 0;
+    pRoot->winSize.extents.x2 = w;
+    pRoot->winSize.extents.y2 = h;
+
+    pRoot->borderSize.extents.x1 = 0;
+    pRoot->borderSize.extents.y1 = 0;
+    pRoot->borderSize.extents.x2 = w;
+    pRoot->borderSize.extents.y2 = h;
+
+    /* Recompute this screen's mmWidth & mmHeight */
+    pScreen->mmWidth =
+	(w * 254 + dmxScreen->beXDPI * 5) / (dmxScreen->beXDPI * 10);
+    pScreen->mmHeight =
+	(h * 254 + dmxScreen->beYDPI * 5) / (dmxScreen->beYDPI * 10);
+
+    /* Recompute this screen's window's clip rects as follows: */
+    /*   1. Mark all of root's children's windows */
+    for (pChild = pRoot->firstChild; pChild; pChild = pChild->nextSib)
+	anyMarked |= pScreen->MarkOverlappedWindows(pChild, pChild,
+						    (WindowPtr *)NULL);
+
+    /*   2. Set the root window's borderClip */
+    pRoot->borderClip.extents.x1 = 0;
+    pRoot->borderClip.extents.y1 = 0;
+    pRoot->borderClip.extents.x2 = w;
+    pRoot->borderClip.extents.y2 = h;
+
+    /*   3. Set the root window's clipList */
+    if (anyMarked) {
+	/* If any windows have been marked, set the root window's
+	 * clipList to be broken since it will be recalculated in
+	 * ValidateTree()
+	 */
+	RegionBreak(&pRoot->clipList);
+    } else {
+	/* Otherwise, we just set it directly since there are no
+	 * windows visible on this screen
+	 */
+	pRoot->clipList.extents.x1 = 0;
+	pRoot->clipList.extents.y1 = 0;
+	pRoot->clipList.extents.x2 = w;
+	pRoot->clipList.extents.y2 = h;
+    }
+
+    /*   4. Revalidate all clip rects and generate expose events */
+    if (anyMarked) {
+	pScreen->ValidateTree(pRoot, NULL, VTBroken);
+	pScreen->HandleExposures(pRoot);
+	if (pScreen->PostValidateTree)
+	    pScreen->PostValidateTree(pRoot, NULL, VTBroken);
+    }
+}
+
+#ifdef PANORAMIX
+#include "panoramiXsrv.h"
+
+/** Change the "screen" window attributes by resizing the actual window
+ *  on the back-end display (if necessary). */
+static void dmxConfigureScreenWindow(int idx,
+				     int x, int y, int w, int h)
+{
+    DMXScreenInfo *dmxScreen = &dmxScreens[idx];
+    ScreenPtr      pScreen   = screenInfo.screens[idx];
+
+    /* Resize "screen" window */
+    if (dmxScreen->scrnX      != x ||
+	dmxScreen->scrnY      != y ||
+	dmxScreen->scrnWidth  != w ||
+	dmxScreen->scrnHeight != h) {
+	dmxResizeScreenWindow(pScreen, x, y, w, h);
+    }
+
+    /* Change "screen" window values */
+    dmxScreen->scrnX      = x;
+    dmxScreen->scrnY      = y;
+    dmxScreen->scrnWidth  = w;
+    dmxScreen->scrnHeight = h;
+}
+				     
+/** Change the "root" window position and size by resizing the actual
+ *  window on the back-end display (if necessary) and updating all of
+ *  DMX's resources by calling #dmxUpdateScreenResources. */
+static void dmxConfigureRootWindow(int idx, int x, int y, int w, int h)
+{
+    DMXScreenInfo *dmxScreen = &dmxScreens[idx];
+    WindowPtr      pRoot     = screenInfo.screens[idx]->root;
+
+    /* NOTE: Either this function or the ones that it calls must handle
+     * the case where w == 0 || h == 0.  Currently, the functions that
+     * this one calls handle that case. */
+
+    /* 1. Resize "root" window */
+    if (dmxScreen->rootX      != x ||
+	dmxScreen->rootY      != y ||
+	dmxScreen->rootWidth  != w ||
+	dmxScreen->rootHeight != h) {
+	dmxResizeRootWindow(pRoot, x, y, w, h);
+    }
+
+    /* 2. Update all of the screen's resources associated with this root
+     *    window */
+    if (dmxScreen->rootWidth  != w ||
+	dmxScreen->rootHeight != h) {
+	dmxUpdateScreenResources(screenInfo.screens[idx], x, y, w, h);
+    }
+
+    /* Change "root" window values */
+    dmxScreen->rootX      = x;
+    dmxScreen->rootY      = y;
+    dmxScreen->rootWidth  = w;
+    dmxScreen->rootHeight = h;
+}
+
+/** Change the "root" window's origin by updating DMX's internal data
+ *  structures (dix and Xinerama) to use the new origin and adjust the
+ *  positions of windows that overlap this "root" window. */
+static void dmxSetRootWindowOrigin(int idx, int x, int y)
+{
+    DMXScreenInfo *dmxScreen = &dmxScreens[idx];
+    ScreenPtr      pScreen   = screenInfo.screens[idx];
+    WindowPtr      pRoot     = pScreen->root;
+    WindowPtr      pChild;
+    int            xoff;
+    int            yoff;
+
+    /* Change "root" window's origin */
+    dmxScreen->rootXOrigin = x;
+    dmxScreen->rootYOrigin = y;
+
+    /* Compute offsets here in case <x,y> has been changed above */
+    xoff = x - pScreen->x;
+    yoff = y - pScreen->y;
+
+    /* Adjust the root window's position */
+    pScreen->x = dmxScreen->rootXOrigin;
+    pScreen->y = dmxScreen->rootYOrigin;
+
+    /* Recalculate the Xinerama regions and data structs */
+    XineramaReinitData(pScreen);
+
+    /* Adjust each of the root window's children */
+    if (!idx) ReinitializeRootWindow(screenInfo.screens[0]->root, xoff, yoff);
+    pChild = pRoot->firstChild;
+    while (pChild) {
+	/* Adjust child window's position */
+	pScreen->MoveWindow(pChild,
+			    pChild->origin.x - wBorderWidth(pChild) - xoff,
+			    pChild->origin.y - wBorderWidth(pChild) - yoff,
+			    pChild->nextSib,
+			    VTMove);
+
+	/* Note that the call to MoveWindow will eventually call
+	 * dmxPositionWindow which will automatically create a
+	 * window if it is now exposed on screen (for lazy window
+	 * creation optimization) and it will properly set the
+	 * offscreen flag.
+	 */
+
+	pChild = pChild->nextSib;
+    }
+}
+
+/** Configure the attributes of each "screen" and "root" window. */
+int dmxConfigureScreenWindows(int nscreens,
+			      CARD32 *screens,
+			      DMXScreenAttributesPtr attribs,
+			      int *errorScreen)
+{
+    int           i;
+
+    for (i = 0; i < nscreens; i++) {
+	DMXScreenAttributesPtr  attr      = &attribs[i];
+	int                     idx       = screens[i];
+	DMXScreenInfo          *dmxScreen = &dmxScreens[idx];
+
+	if (errorScreen) *errorScreen = i;
+
+	if (!dmxScreen->beDisplay) return DMX_BAD_VALUE;
+
+	/* Check for illegal values */
+	if (idx < 0 || idx >= dmxNumScreens) return BadValue;
+
+	/* The "screen" and "root" windows must have valid sizes */
+	if (attr->screenWindowWidth <= 0 || attr->screenWindowHeight <= 0 ||
+	    attr->rootWindowWidth   <  0 || attr->rootWindowHeight   <  0)
+	    return DMX_BAD_VALUE;
+
+	/* The "screen" window must fit entirely within the BE display */
+	if (attr->screenWindowXoffset < 0 ||
+	    attr->screenWindowYoffset < 0 ||
+	    attr->screenWindowXoffset
+	    + attr->screenWindowWidth  > (unsigned)dmxScreen->beWidth ||
+	    attr->screenWindowYoffset
+	    + attr->screenWindowHeight > (unsigned)dmxScreen->beHeight)
+	    return DMX_BAD_VALUE;
+
+	/* The "root" window must fit entirely within the "screen" window */
+	if (attr->rootWindowXoffset < 0 ||
+	    attr->rootWindowYoffset < 0 ||
+	    attr->rootWindowXoffset
+	    + attr->rootWindowWidth  > attr->screenWindowWidth ||
+	    attr->rootWindowYoffset
+	    + attr->rootWindowHeight > attr->screenWindowHeight)
+	    return DMX_BAD_VALUE;
+
+	/* The "root" window must not expose unaddressable coordinates */
+	if (attr->rootWindowXorigin < 0 ||
+	    attr->rootWindowYorigin < 0 ||
+	    attr->rootWindowXorigin + attr->rootWindowWidth  > 32767 ||
+	    attr->rootWindowYorigin + attr->rootWindowHeight > 32767)
+	    return DMX_BAD_VALUE;
+
+	/* The "root" window must fit within the global bounding box */
+	if (attr->rootWindowXorigin
+	    + attr->rootWindowWidth > (unsigned)dmxGlobalWidth ||
+	    attr->rootWindowYorigin
+	    + attr->rootWindowHeight > (unsigned)dmxGlobalHeight)
+	    return DMX_BAD_VALUE;
+
+	/* FIXME: Handle the rest of the illegal value checking */
+    }
+
+    /* No illegal values found */
+    if (errorScreen) *errorScreen = 0;
+
+    for (i = 0; i < nscreens; i++) {
+	DMXScreenAttributesPtr  attr      = &attribs[i];
+	int                     idx       = screens[i];
+	DMXScreenInfo          *dmxScreen = &dmxScreens[idx];
+
+	dmxLog(dmxInfo, "Changing screen #%d attributes "
+	       "from %dx%d+%d+%d %dx%d+%d+%d +%d+%d "
+	       "to %dx%d+%d+%d %dx%d+%d+%d +%d+%d\n",
+	       idx,
+	       dmxScreen->scrnWidth,      dmxScreen->scrnHeight,
+	       dmxScreen->scrnX,          dmxScreen->scrnY,
+	       dmxScreen->rootWidth,      dmxScreen->rootHeight,
+	       dmxScreen->rootX,          dmxScreen->rootY,
+	       dmxScreen->rootXOrigin,    dmxScreen->rootYOrigin,
+	       attr->screenWindowWidth,   attr->screenWindowHeight,
+	       attr->screenWindowXoffset, attr->screenWindowYoffset,
+	       attr->rootWindowWidth,     attr->rootWindowHeight,
+	       attr->rootWindowXoffset,   attr->rootWindowYoffset,
+	       attr->rootWindowXorigin,   attr->rootWindowYorigin);
+
+	/* Configure "screen" window */
+	dmxConfigureScreenWindow(idx,
+				 attr->screenWindowXoffset,
+				 attr->screenWindowYoffset,
+				 attr->screenWindowWidth,
+				 attr->screenWindowHeight);
+
+	/* Configure "root" window */
+	dmxConfigureRootWindow(idx,
+			       attr->rootWindowXoffset,
+			       attr->rootWindowYoffset,
+			       attr->rootWindowWidth,
+			       attr->rootWindowHeight);
+
+
+	/* Set "root" window's origin */
+	dmxSetRootWindowOrigin(idx,
+			       attr->rootWindowXorigin,
+			       attr->rootWindowYorigin);
+    }
+
+    /* Adjust the cursor boundaries */
+    dmxAdjustCursorBoundaries();
+
+    /* Force completion of the changes */
+    dmxSync(NULL, TRUE);
+
+    return Success;
+}
+
+/** Configure the attributes of the global desktop. */
+int dmxConfigureDesktop(DMXDesktopAttributesPtr attribs)
+{
+    if (attribs->width  <= 0 || attribs->width  >= 32767 ||
+	attribs->height <= 0 || attribs->height >= 32767)
+	return DMX_BAD_VALUE;
+
+    /* If the desktop is shrinking, adjust the "root" windows on each
+     * "screen" window to only show the visible desktop.  Also, handle
+     * the special case where the desktop shrinks such that the it no
+     * longer overlaps an portion of a "screen" window. */
+    if (attribs->width < dmxGlobalWidth || attribs->height < dmxGlobalHeight) {
+	int   i;
+	for (i = 0; i < dmxNumScreens; i++) {
+	    DMXScreenInfo *dmxScreen = &dmxScreens[i];
+	    if (dmxScreen->rootXOrigin
+		+ dmxScreen->rootWidth  > attribs->width ||
+		dmxScreen->rootYOrigin
+		+ dmxScreen->rootHeight > attribs->height) {
+		int  w, h;
+		if ((w = attribs->width  - dmxScreen->rootXOrigin) < 0) w = 0;
+		if ((h = attribs->height - dmxScreen->rootYOrigin) < 0) h = 0;
+		if (w > dmxScreen->scrnWidth)  w = dmxScreen->scrnWidth;
+		if (h > dmxScreen->scrnHeight) h = dmxScreen->scrnHeight;
+		if (w > dmxScreen->rootWidth)  w = dmxScreen->rootWidth;
+		if (h > dmxScreen->rootHeight) h = dmxScreen->rootHeight;
+		dmxConfigureRootWindow(i,
+				       dmxScreen->rootX,
+				       dmxScreen->rootY,
+				       w, h);
+	    }
+	}
+    }
+
+    /* Set the global width/height */
+    dmxSetWidthHeight(attribs->width, attribs->height);
+
+    /* Handle shift[XY] changes */
+    if (attribs->shiftX || attribs->shiftY) {
+	int   i;
+	for (i = 0; i < dmxNumScreens; i++) {
+	    ScreenPtr  pScreen = screenInfo.screens[i];
+	    WindowPtr  pChild  = pScreen->root->firstChild;
+	    while (pChild) {
+		/* Adjust child window's position */
+		pScreen->MoveWindow(pChild,
+				    pChild->origin.x - wBorderWidth(pChild)
+				    - attribs->shiftX,
+				    pChild->origin.y - wBorderWidth(pChild)
+				    - attribs->shiftY,
+				    pChild->nextSib,
+				    VTMove);
+
+		/* Note that the call to MoveWindow will eventually call
+		 * dmxPositionWindow which will automatically create a
+		 * window if it is now exposed on screen (for lazy
+		 * window creation optimization) and it will properly
+		 * set the offscreen flag.
+		 */
+
+		pChild = pChild->nextSib;
+	    }
+	}
+    }
+
+    /* Update connection block, Xinerama, etc. -- these appears to
+     * already be handled in dmxConnectionBlockCallback(), which is
+     * called from dmxAdjustCursorBoundaries() [below]. */
+
+    /* Adjust the cursor boundaries */
+    dmxAdjustCursorBoundaries();
+
+    /* Force completion of the changes */
+    dmxSync(NULL, TRUE);
+
+    return Success;
+}
+#endif
+
+/** Create the scratch GCs per depth. */
+static void dmxBECreateScratchGCs(int scrnNum)
+{
+    ScreenPtr  pScreen = screenInfo.screens[scrnNum];
+    GCPtr     *ppGC    = pScreen->GCperDepth;
+    int        i;
+
+    for (i = 0; i <= pScreen->numDepths; i++)
+	dmxBECreateGC(pScreen, ppGC[i]);
+}
+
+#ifdef PANORAMIX
+static Bool FoundPixImage;
+
+/** Search the Xinerama XRT_PIXMAP resources for the pixmap that needs
+ *  to have its image restored.  When it is found, see if there is
+ *  another screen with the same image.  If so, copy the pixmap image
+ *  from the existing screen to the newly created pixmap. */
+static void dmxBERestorePixmapImage(pointer value, XID id, RESTYPE type,
+				    pointer p)
+{
+    if ((type & TypeMask) == (XRT_PIXMAP & TypeMask)) {
+	PixmapPtr      pDst     = (PixmapPtr)p;
+	int            idx      = pDst->drawable.pScreen->myNum;
+	PanoramiXRes  *pXinPix  = (PanoramiXRes *)value;
+	PixmapPtr      pPix;
+	int            i;
+
+	dixLookupResourceByType((pointer*) &pPix, pXinPix->info[idx].id,
+				RT_PIXMAP, NullClient, DixUnknownAccess);
+	if (pPix != pDst) return; /* Not a match.... Next! */
+
+	for (i = 0; i < PanoramiXNumScreens; i++) {
+	    PixmapPtr      pSrc;
+	    dmxPixPrivPtr  pSrcPriv = NULL;
+
+	    if (i == idx) continue; /* Self replication is bad */
+
+	    dixLookupResourceByType((pointer*) &pSrc, pXinPix->info[i].id,
+				    RT_PIXMAP, NullClient, DixUnknownAccess);
+	    pSrcPriv = DMX_GET_PIXMAP_PRIV(pSrc);
+	    if (pSrcPriv->pixmap) {
+		DMXScreenInfo *dmxSrcScreen = &dmxScreens[i];
+		DMXScreenInfo *dmxDstScreen = &dmxScreens[idx];
+		dmxPixPrivPtr  pDstPriv = DMX_GET_PIXMAP_PRIV(pDst);
+		XImage        *img;
+		int            j;
+		XlibGC         gc = NULL;
+
+		/* This should never happen, but just in case.... */
+		if (pSrc->drawable.width  != pDst->drawable.width ||
+		    pSrc->drawable.height != pDst->drawable.height)
+		    return;
+
+		/* Copy from src pixmap to dst pixmap */
+		img = XGetImage(dmxSrcScreen->beDisplay,
+				pSrcPriv->pixmap,
+				0, 0,
+				pSrc->drawable.width, pSrc->drawable.height,
+				-1,
+				ZPixmap);
+
+		for (j = 0; j < dmxDstScreen->beNumPixmapFormats; j++) {
+		    if (dmxDstScreen->bePixmapFormats[j].depth == img->depth) {
+			unsigned long  m;
+			XGCValues      v;
+
+			m = GCFunction | GCPlaneMask | GCClipMask;
+			v.function = GXcopy;
+			v.plane_mask = AllPlanes;
+			v.clip_mask = None;
+
+			gc = XCreateGC(dmxDstScreen->beDisplay,
+				       dmxDstScreen->scrnDefDrawables[j],
+				       m, &v);
+			break;
+		    }
+		}
+
+		if (gc) {
+		    XPutImage(dmxDstScreen->beDisplay,
+			      pDstPriv->pixmap,
+			      gc, img, 0, 0, 0, 0,
+			      pDst->drawable.width, pDst->drawable.height);
+		    XFreeGC(dmxDstScreen->beDisplay, gc);
+		    FoundPixImage = True;
+		} else {
+		    dmxLog(dmxWarning, "Could not create GC\n");
+		}
+
+		XDestroyImage(img);
+		return;
+	    }
+	}
+    }
+}
+#endif
+
+/** Restore the pixmap image either from another screen or from an image
+ *  that was saved when the screen was previously detached. */
+static void dmxBERestorePixmap(PixmapPtr pPixmap)
+{
+#ifdef PANORAMIX
+    int i;
+
+    /* If Xinerama is not active, there's nothing we can do (see comment
+     * in #else below for more info). */
+    if (noPanoramiXExtension) {
+	dmxLog(dmxWarning, "Cannot restore pixmap image\n");
+	return;
+    }
+
+    FoundPixImage = False;
+    for (i = currentMaxClients; --i >= 0; )
+	if (clients[i])
+	    FindAllClientResources(clients[i], dmxBERestorePixmapImage,
+				   (pointer)pPixmap);
+
+    /* No corresponding pixmap image was found on other screens, so we
+     * need to copy it from the saved image when the screen was detached
+     * (if available). */
+    if (!FoundPixImage) {
+	dmxPixPrivPtr  pPixPriv = DMX_GET_PIXMAP_PRIV(pPixmap);
+
+	if (pPixPriv->detachedImage) {
+	    ScreenPtr      pScreen   = pPixmap->drawable.pScreen;
+	    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+	    XlibGC         gc        = NULL;
+
+	    for (i = 0; i < dmxScreen->beNumPixmapFormats; i++) {
+		if (dmxScreen->bePixmapFormats[i].depth ==
+		    pPixPriv->detachedImage->depth) {
+		    unsigned long  m;
+		    XGCValues      v;
+
+		    m = GCFunction | GCPlaneMask | GCClipMask;
+		    v.function = GXcopy;
+		    v.plane_mask = AllPlanes;
+		    v.clip_mask = None;
+
+		    gc = XCreateGC(dmxScreen->beDisplay,
+				   dmxScreen->scrnDefDrawables[i],
+				   m, &v);
+		    break;
+		}
+	    }
+
+	    if (gc) {
+		XPutImage(dmxScreen->beDisplay,
+			  pPixPriv->pixmap,
+			  gc,
+			  pPixPriv->detachedImage,
+			  0, 0, 0, 0,
+		      pPixmap->drawable.width, pPixmap->drawable.height);
+		XFreeGC(dmxScreen->beDisplay, gc);
+	    } else {
+		dmxLog(dmxWarning, "Cannot restore pixmap image\n");
+	    }
+
+	    XDestroyImage(pPixPriv->detachedImage);
+	    pPixPriv->detachedImage = NULL;
+	} else {
+	    dmxLog(dmxWarning, "Cannot restore pixmap image\n");
+	}
+    }
+#else
+    /* If Xinerama is not enabled, then there is no other copy of the
+     * pixmap image that we can restore.  Saving all pixmap data is not
+     * a feasible option since there is no mechanism for updating pixmap
+     * data when a screen is detached, which means that the data that
+     * was previously saved would most likely be out of date. */
+    dmxLog(dmxWarning, "Cannot restore pixmap image\n");
+    return;
+#endif
+}
+
+/** Create resources on the back-end server.  This function is called
+ *  from #dmxAttachScreen() via the dix layer's FindAllResources
+ *  function.  It walks all resources, compares them to the screen
+ *  number passed in as \a n and calls the appropriate DMX function to
+ *  create the associated resource on the back-end server. */
+static void dmxBECreateResources(pointer value, XID id, RESTYPE type,
+				 pointer n)
+{
+    int        scrnNum = (uintptr_t)n;
+    ScreenPtr  pScreen = screenInfo.screens[scrnNum];
+
+    if ((type & TypeMask) == (RT_WINDOW & TypeMask)) {
+	/* Window resources are created below in dmxBECreateWindowTree */
+    } else if ((type & TypeMask) == (RT_PIXMAP & TypeMask)) {
+	PixmapPtr  pPix = value;
+	if (pPix->drawable.pScreen->myNum == scrnNum) {
+	    dmxBECreatePixmap(pPix);
+	    dmxBERestorePixmap(pPix);
+	}
+    } else if ((type & TypeMask) == (RT_GC & TypeMask)) {
+	GCPtr  pGC = value;
+	if (pGC->pScreen->myNum == scrnNum) {
+	    /* Create the GC on the back-end server */
+	    dmxBECreateGC(pScreen, pGC);
+	    /* Create any pixmaps associated with this GC */
+	    if (!pGC->tileIsPixel) {
+		dmxBECreatePixmap(pGC->tile.pixmap);
+		dmxBERestorePixmap(pGC->tile.pixmap);
+	    }
+	    if (pGC->stipple != pScreen->PixmapPerDepth[0]) {
+		dmxBECreatePixmap(pGC->stipple);
+		dmxBERestorePixmap(pGC->stipple);
+	    }
+	    if (pGC->font != defaultFont) {
+		(void)dmxBELoadFont(pScreen, pGC->font);
+	    }
+	    /* Update the GC on the back-end server */
+	    dmxChangeGC(pGC, -1L);
+	}
+    } else if ((type & TypeMask) == (RT_FONT & TypeMask)) {
+	(void)dmxBELoadFont(pScreen, (FontPtr)value);
+    } else if ((type & TypeMask) == (RT_CURSOR & TypeMask)) {
+	dmxBECreateCursor(pScreen, (CursorPtr)value);
+    } else if ((type & TypeMask) == (RT_COLORMAP & TypeMask)) {
+	ColormapPtr  pCmap = value;
+	if (pCmap->pScreen->myNum == scrnNum)
+	    (void)dmxBECreateColormap((ColormapPtr)value);
+#if 0
+    /* TODO: Recreate Picture and GlyphSet resources */
+    } else if ((type & TypeMask) == (PictureType & TypeMask)) {
+	/* Picture resources are created when windows are created */
+    } else if ((type & TypeMask) == (GlyphSetType & TypeMask)) {
+	dmxBEFreeGlyphSet(pScreen, (GlyphSetPtr)value);
+#endif
+    } else {
+	/* Other resource types??? */
+    }
+}
+
+/** Create window hierachy on back-end server.  The window tree is
+ *  created in a special order (bottom most subwindow first) so that the
+ *  #dmxCreateNonRootWindow() function does not need to recursively call
+ *  itself to create each window's parents.  This is required so that we
+ *  have the opportunity to create each window's border and background
+ *  pixmaps (where appropriate) before the window is created. */
+static void dmxBECreateWindowTree(int idx)
+{
+    DMXScreenInfo *dmxScreen = &dmxScreens[idx];
+    WindowPtr      pRoot     = screenInfo.screens[idx]->root;
+    dmxWinPrivPtr  pWinPriv  = DMX_GET_WINDOW_PRIV(pRoot);
+    WindowPtr      pWin;
+
+    /* Create the pixmaps associated with the root window */
+    if (!pRoot->borderIsPixel) {
+	dmxBECreatePixmap(pRoot->border.pixmap);
+	dmxBERestorePixmap(pRoot->border.pixmap);
+    }
+    if (pRoot->backgroundState == BackgroundPixmap) {
+	dmxBECreatePixmap(pRoot->background.pixmap);
+	dmxBERestorePixmap(pRoot->background.pixmap);
+    }
+
+    /* Create root window first */
+    dmxScreen->rootWin = pWinPriv->window = dmxCreateRootWindow(pRoot);
+    XMapWindow(dmxScreen->beDisplay, dmxScreen->rootWin);
+
+    pWin = pRoot->lastChild;
+    while (pWin) {
+	pWinPriv = DMX_GET_WINDOW_PRIV(pWin);
+
+	/* Create the pixmaps regardless of whether or not the
+	 * window is created or not due to lazy window creation.
+	 */
+	if (!pWin->borderIsPixel) {
+	    dmxBECreatePixmap(pWin->border.pixmap);
+	    dmxBERestorePixmap(pWin->border.pixmap);
+	}
+	if (pWin->backgroundState == BackgroundPixmap) {
+	    dmxBECreatePixmap(pWin->background.pixmap);
+	    dmxBERestorePixmap(pWin->background.pixmap);
+	}
+
+	/* Reset the window attributes */
+	dmxGetDefaultWindowAttributes(pWin,
+				      &pWinPriv->cmap,
+				      &pWinPriv->visual);
+
+	/* Create the window */
+	if (pWinPriv->mapped && !pWinPriv->offscreen)
+	    dmxCreateAndRealizeWindow(pWin, TRUE);
+
+	/* Next, create the bottom-most child */
+	if (pWin->lastChild) {
+	    pWin = pWin->lastChild;
+	    continue;
+	}
+
+	/* If the window has no children, move on to the next higher window */
+	while (!pWin->prevSib && (pWin != pRoot))
+	    pWin = pWin->parent;
+
+	if (pWin->prevSib) {
+	    pWin = pWin->prevSib;
+	    continue;
+	}
+
+	/* When we reach the root window, we are finished */
+	if (pWin == pRoot)
+	    break;
+    }
+}
+
+/* Refresh screen by generating exposure events for all windows */
+static void dmxForceExposures(int idx)
+{
+    ScreenPtr      pScreen   = screenInfo.screens[idx];
+    WindowPtr  pRoot     = pScreen->root;
+    Bool       anyMarked = FALSE;
+    WindowPtr  pChild;
+
+    for (pChild = pRoot->firstChild; pChild; pChild = pChild->nextSib)
+	anyMarked |= pScreen->MarkOverlappedWindows(pChild, pChild,
+						    (WindowPtr *)NULL);
+    if (anyMarked) {
+	/* If any windows have been marked, set the root window's
+	 * clipList to be broken since it will be recalculated in
+	 * ValidateTree()
+	 */
+	RegionBreak(&pRoot->clipList);
+	pScreen->ValidateTree(pRoot, NULL, VTBroken);
+	pScreen->HandleExposures(pRoot);
+	if (pScreen->PostValidateTree)
+	    pScreen->PostValidateTree(pRoot, NULL, VTBroken);
+    }
+}
+
+/** Compare the new and old screens to see if they are compatible. */
+static Bool dmxCompareScreens(DMXScreenInfo *new, DMXScreenInfo *old)
+{
+    int i;
+
+    if (new->beWidth != old->beWidth) return FALSE;
+    if (new->beHeight != old->beHeight) return FALSE;
+    if (new->beDepth != old->beDepth) return FALSE;
+    if (new->beBPP != old->beBPP) return FALSE;
+
+    if (new->beNumDepths != old->beNumDepths) return FALSE;
+    for (i = 0; i < old->beNumDepths; i++)
+	if (new->beDepths[i] != old->beDepths[i]) return FALSE;
+
+    if (new->beNumPixmapFormats != old->beNumPixmapFormats) return FALSE;
+    for (i = 0; i < old->beNumPixmapFormats; i++) {
+	if (new->bePixmapFormats[i].depth !=
+	    old->bePixmapFormats[i].depth) return FALSE;
+	if (new->bePixmapFormats[i].bits_per_pixel !=
+	    old->bePixmapFormats[i].bits_per_pixel) return FALSE;
+	if (new->bePixmapFormats[i].scanline_pad !=
+	    old->bePixmapFormats[i].scanline_pad) return FALSE;
+    }
+
+    if (new->beNumVisuals != old->beNumVisuals) return FALSE;
+    for (i = 0; i < old->beNumVisuals; i++) {
+	if (new->beVisuals[i].visualid !=
+	    old->beVisuals[i].visualid) return FALSE;
+	if (new->beVisuals[i].screen !=
+	    old->beVisuals[i].screen) return FALSE;
+	if (new->beVisuals[i].depth !=
+	    old->beVisuals[i].depth) return FALSE;
+	if (new->beVisuals[i].class !=
+	    old->beVisuals[i].class) return FALSE;
+	if (new->beVisuals[i].red_mask !=
+	    old->beVisuals[i].red_mask) return FALSE;
+	if (new->beVisuals[i].green_mask !=
+	    old->beVisuals[i].green_mask) return FALSE;
+	if (new->beVisuals[i].blue_mask !=
+	    old->beVisuals[i].blue_mask) return FALSE;
+	if (new->beVisuals[i].colormap_size !=
+	    old->beVisuals[i].colormap_size) return FALSE;
+	if (new->beVisuals[i].bits_per_rgb !=
+	    old->beVisuals[i].bits_per_rgb) return FALSE;
+    }
+
+    if (new->beDefVisualIndex != old->beDefVisualIndex) return FALSE;
+
+    return TRUE;
+}
+
+/** Restore Render's picture */
+static void dmxBERestoreRenderPict(pointer value, XID id, pointer n)
+{
+    PicturePtr   pPicture = value;               /* The picture */
+    DrawablePtr  pDraw    = pPicture->pDrawable; /* The picture's drawable */
+    int          scrnNum  = (uintptr_t)n;
+
+    if (pDraw->pScreen->myNum != scrnNum) {
+	/* Picture not on the screen we are restoring*/
+	return;
+    }
+
+    if (pDraw->type == DRAWABLE_PIXMAP) {
+	PixmapPtr  pPixmap = (PixmapPtr)pDraw;
+	
+	/* Create and restore the pixmap drawable */
+	dmxBECreatePixmap(pPixmap);
+	dmxBERestorePixmap(pPixmap);
+    }
+
+    dmxBECreatePicture(pPicture);
+}
+
+/** Restore Render's glyphs */
+static void dmxBERestoreRenderGlyph(pointer value, XID id, pointer n)
+{
+    GlyphSetPtr      glyphSet   = value;
+    int              scrnNum    = (uintptr_t)n;
+    dmxGlyphPrivPtr  glyphPriv  = DMX_GET_GLYPH_PRIV(glyphSet);
+    DMXScreenInfo   *dmxScreen  = &dmxScreens[scrnNum];
+    GlyphRefPtr      table;
+    char            *images;
+    Glyph           *gids;
+    XGlyphInfo      *glyphs;
+    char            *pos;
+    int              beret;
+    int              len_images = 0;
+    int              i;
+    int              ctr;
+
+    if (glyphPriv->glyphSets[scrnNum]) {
+	/* Only restore glyphs on the screen we are attaching */
+	return;
+    }
+
+    /* First we must create the glyph set on the backend. */
+    if ((beret = dmxBECreateGlyphSet(scrnNum, glyphSet)) != Success) {
+	dmxLog(dmxWarning,
+	       "\tdmxBERestoreRenderGlyph failed to create glyphset!\n");
+	return;
+    }
+
+    /* Now for the complex part, restore the glyph data */
+    table = glyphSet->hash.table;
+
+    /* We need to know how much memory to allocate for this part */
+    for (i = 0; i < glyphSet->hash.hashSet->size; i++) {
+	GlyphRefPtr  gr = &table[i];
+	GlyphPtr     gl = gr->glyph;
+
+	if (!gl || gl == DeletedGlyph) continue;
+	len_images += gl->size - sizeof(gl->info);
+    }
+
+    /* Now allocate the memory we need */
+    images = calloc(len_images, sizeof(char));
+    gids   = malloc(glyphSet->hash.tableEntries*sizeof(Glyph));
+    glyphs = malloc(glyphSet->hash.tableEntries*sizeof(XGlyphInfo));
+
+    pos = images;
+    ctr = 0;
+    
+    /* Fill the allocated memory with the proper data */
+    for (i = 0; i < glyphSet->hash.hashSet->size; i++) {
+	GlyphRefPtr  gr = &table[i];
+	GlyphPtr     gl = gr->glyph;
+
+	if (!gl || gl == DeletedGlyph) continue;
+
+	/* First lets put the data into gids */
+	gids[ctr] = gr->signature;
+
+	/* Next do the glyphs data structures */
+	glyphs[ctr].width  = gl->info.width;
+	glyphs[ctr].height = gl->info.height;
+	glyphs[ctr].x      = gl->info.x;
+	glyphs[ctr].y      = gl->info.y;
+	glyphs[ctr].xOff   = gl->info.xOff;
+	glyphs[ctr].yOff   = gl->info.yOff;
+
+	/* Copy the images from the DIX's data into the buffer */
+	memcpy(pos, gl+1, gl->size - sizeof(gl->info));
+	pos += gl->size - sizeof(gl->info);
+	ctr++;
+    }
+    
+    /* Now restore the glyph data */
+    XRenderAddGlyphs(dmxScreen->beDisplay, glyphPriv->glyphSets[scrnNum],
+		     gids,glyphs, glyphSet->hash.tableEntries, images,
+		     len_images);
+
+    /* Clean up */
+    free(images);
+    free(gids);
+    free(glyphs);    
+}
+
+/** Reattach previously detached back-end screen. */
+int dmxAttachScreen(int idx, DMXScreenAttributesPtr attr)
+{
+    ScreenPtr      pScreen;
+    DMXScreenInfo *dmxScreen;
+    CARD32         scrnNum   = idx;
+    DMXScreenInfo  oldDMXScreen;
+    int            i;
+
+    /* Return failure if dynamic addition/removal of screens is disabled */
+    if (!dmxAddRemoveScreens) {
+	dmxLog(dmxWarning,
+	       "Attempting to add a screen, but the AddRemoveScreen\n");
+	dmxLog(dmxWarning,
+	       "extension has not been enabled.  To enable this extension\n");
+	dmxLog(dmxWarning,
+	       "add the \"-addremovescreens\" option either to the command\n");
+	dmxLog(dmxWarning,
+	       "line or in the configuration file.\n");
+	return 1;
+    }
+
+    /* Cannot add a screen that does not exist */
+    if (idx < 0 || idx >= dmxNumScreens) return 1;
+    pScreen = screenInfo.screens[idx];
+    dmxScreen = &dmxScreens[idx];
+
+    /* Cannot attach to a screen that is already opened */
+    if (dmxScreen->beDisplay) {
+	dmxLog(dmxWarning,
+	       "Attempting to add screen #%d but a screen already exists\n",
+	       idx);
+	return 1;
+    }
+
+    dmxLogOutput(dmxScreen, "Attaching screen #%d\n", idx);
+
+    /* Save old info */
+    oldDMXScreen = *dmxScreen;
+
+    /* Copy the name to the new screen */
+    dmxScreen->name = strdup(attr->displayName);
+
+    /* Open display and get all of the screen info */
+    if (!dmxOpenDisplay(dmxScreen)) {
+	dmxLog(dmxWarning,
+               "dmxOpenDisplay: Unable to open display %s\n",
+               dmxScreen->name);
+
+	/* Restore the old screen */
+	*dmxScreen = oldDMXScreen;
+	return 1;
+    }
+
+    dmxSetErrorHandler(dmxScreen);
+    dmxCheckForWM(dmxScreen);
+    dmxGetScreenAttribs(dmxScreen);
+
+    if (!dmxGetVisualInfo(dmxScreen)) {
+	dmxLog(dmxWarning, "dmxGetVisualInfo: No matching visuals found\n");
+	XFree(dmxScreen->beVisuals);
+	XCloseDisplay(dmxScreen->beDisplay);
+
+	/* Restore the old screen */
+	*dmxScreen = oldDMXScreen;
+	return 1;
+    }
+
+    dmxGetColormaps(dmxScreen);
+    dmxGetPixmapFormats(dmxScreen);
+
+    /* Verify that the screen to be added has the same info as the
+     * previously added screen. */
+    if (!dmxCompareScreens(dmxScreen, &oldDMXScreen)) {
+	dmxLog(dmxWarning,
+	       "New screen data (%s) does not match previously\n",
+	       dmxScreen->name);
+	dmxLog(dmxWarning,
+	       "attached screen data (%s)\n",
+	       oldDMXScreen.name);
+	dmxLog(dmxWarning,
+	       "All data must match in order to attach to screen #%d\n",
+	       idx);
+	XFree(dmxScreen->beVisuals);
+	XFree(dmxScreen->beDepths);
+	XFree(dmxScreen->bePixmapFormats);
+	XCloseDisplay(dmxScreen->beDisplay);
+
+	/* Restore the old screen */
+	*dmxScreen = oldDMXScreen;
+	return 1;
+    }
+
+    /* Initialize the BE screen resources */
+    dmxBEScreenInit(idx, screenInfo.screens[idx]);
+
+    /* TODO: Handle GLX visual initialization.  GLXProxy needs to be
+     * updated to handle dynamic addition/removal of screens. */
+
+    /* Create default stipple */
+    dmxBECreatePixmap(pScreen->PixmapPerDepth[0]);
+    dmxBERestorePixmap(pScreen->PixmapPerDepth[0]);
+
+    /* Create the scratch GCs */
+    dmxBECreateScratchGCs(idx);
+
+    /* Create the default font */
+    (void)dmxBELoadFont(pScreen, defaultFont);
+
+    /* Create all resources that don't depend on windows */
+    for (i = currentMaxClients; --i >= 0; )
+	if (clients[i])
+	    FindAllClientResources(clients[i], dmxBECreateResources,
+				   (pointer)(uintptr_t)idx);
+
+    /* Create window hierarchy (top down) */
+    dmxBECreateWindowTree(idx);
+
+    /* Restore the picture state for RENDER */
+    for (i = currentMaxClients; --i >= 0; )
+	if (clients[i])
+	    FindClientResourcesByType(clients[i],PictureType, 
+				      dmxBERestoreRenderPict,
+				      (pointer)(uintptr_t)idx);
+
+    /* Restore the glyph state for RENDER */
+    for (i = currentMaxClients; --i >= 0; )
+	if (clients[i])
+	    FindClientResourcesByType(clients[i],GlyphSetType, 
+				      dmxBERestoreRenderGlyph,
+				      (pointer)(uintptr_t)idx);
+
+    /* Refresh screen by generating exposure events for all windows */
+    dmxForceExposures(idx);
+
+    dmxSync(&dmxScreens[idx], TRUE);
+
+    /* We used these to compare the old and new screens.  They are no
+     * longer needed since we have a newly attached screen, so we can
+     * now free the old screen's resources. */
+    XFree(oldDMXScreen.beVisuals);
+    XFree(oldDMXScreen.beDepths);
+    XFree(oldDMXScreen.bePixmapFormats);
+    /* TODO: should oldDMXScreen.name be freed?? */
+
+#ifdef PANORAMIX
+    if (!noPanoramiXExtension)
+	return dmxConfigureScreenWindows(1, &scrnNum, attr, NULL);
+    else
+#endif
+	return 0; /* Success */
+}
+
+/*
+ * Resources that may have state on the BE server and need to be freed:
+ *
+ * RT_NONE
+ * RT_WINDOW
+ * RT_PIXMAP
+ * RT_GC
+ * RT_FONT
+ * RT_CURSOR
+ * RT_COLORMAP
+ * RT_CMAPENTRY
+ * RT_OTHERCLIENT
+ * RT_PASSIVEGRAB
+ * XRT_WINDOW
+ * XRT_PIXMAP
+ * XRT_GC
+ * XRT_COLORMAP
+ * XRT_PICTURE
+ * PictureType
+ * PictFormatType
+ * GlyphSetType
+ * ClientType
+ * EventType
+ * RT_INPUTCLIENT
+ * XETrapType
+ * RTCounter
+ * RTAwait
+ * RTAlarmClient
+ * RT_XKBCLIENT
+ * RTContext
+ * TagResType
+ * StalledResType
+ * SecurityAuthorizationResType
+ * RTEventClient
+ * __glXContextRes
+ * __glXClientRes
+ * __glXPixmapRes
+ * __glXWindowRes
+ * __glXPbufferRes
+ */
+
+#ifdef PANORAMIX
+/** Search the Xinerama XRT_PIXMAP resources for the pixmap that needs
+ *  to have its image saved. */
+static void dmxBEFindPixmapImage(pointer value, XID id, RESTYPE type,
+				 pointer p)
+{
+    if ((type & TypeMask) == (XRT_PIXMAP & TypeMask)) {
+	PixmapPtr      pDst     = (PixmapPtr)p;
+	int            idx      = pDst->drawable.pScreen->myNum;
+	PanoramiXRes  *pXinPix  = (PanoramiXRes *)value;
+	PixmapPtr      pPix;
+	int            i;
+
+	dixLookupResourceByType((pointer*) &pPix, pXinPix->info[idx].id,
+				RT_PIXMAP, NullClient, DixUnknownAccess);
+	if (pPix != pDst) return; /* Not a match.... Next! */
+
+	for (i = 0; i < PanoramiXNumScreens; i++) {
+	    PixmapPtr      pSrc;
+	    dmxPixPrivPtr  pSrcPriv = NULL;
+
+	    if (i == idx) continue; /* Self replication is bad */
+
+	    dixLookupResourceByType((pointer*) &pSrc, pXinPix->info[i].id,
+				    RT_PIXMAP, NullClient, DixUnknownAccess);
+	    pSrcPriv = DMX_GET_PIXMAP_PRIV(pSrc);
+	    if (pSrcPriv->pixmap) {
+		FoundPixImage = True;
+		return;
+	    }
+	}
+    }
+}
+#endif
+
+/** Save the pixmap image only when there is not another screen with
+ *  that pixmap from which the image can be read when the screen is
+ *  reattached.  To do this, we first try to find a pixmap on another
+ *  screen corresponding to the one we are trying to save.  If we find
+ *  one, then we do not need to save the image data since during
+ *  reattachment, the image data can be read from that other pixmap.
+ *  However, if we do not find one, then we need to save the image data.
+ *  The common case for these are for the default stipple and root
+ *  tile. */
+static void dmxBESavePixmap(PixmapPtr pPixmap)
+{
+#ifdef PANORAMIX
+    int i;
+
+    /* If Xinerama is not active, there's nothing we can do (see comment
+     * in #else below for more info). */
+    if (noPanoramiXExtension) return;
+
+    FoundPixImage = False;
+    for (i = currentMaxClients; --i >= 0; )
+	if (clients[i])
+	    FindAllClientResources(clients[i], dmxBEFindPixmapImage,
+				   (pointer)pPixmap);
+
+    /* Save the image only if there is no other screens that have a
+     * pixmap that corresponds to the one we are trying to save. */
+    if (!FoundPixImage) {
+	dmxPixPrivPtr  pPixPriv = DMX_GET_PIXMAP_PRIV(pPixmap);
+
+	if (!pPixPriv->detachedImage) {
+	    ScreenPtr      pScreen   = pPixmap->drawable.pScreen;
+	    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+
+	    pPixPriv->detachedImage = XGetImage(dmxScreen->beDisplay,
+						pPixPriv->pixmap,
+						0, 0,
+						pPixmap->drawable.width,
+						pPixmap->drawable.height,
+						-1,
+						ZPixmap);
+	    if (!pPixPriv->detachedImage)
+		dmxLog(dmxWarning, "Cannot save pixmap image\n");
+	}
+    }
+#else
+    /* NOTE: The only time there is a pixmap on another screen that
+     * corresponds to the one we are trying to save is when Xinerama is
+     * active.  Otherwise, the pixmap image data is only stored on a
+     * single screen, which means that once it is detached, that data is
+     * lost.  We could save the data here, but then that would require
+     * us to implement the ability for Xdmx to keep the pixmap up to
+     * date while the screen is detached, which is beyond the scope of
+     * the current project. */
+    return;
+#endif
+}
+
+/** Destroy resources on the back-end server.  This function is called
+ *  from #dmxDetachScreen() via the dix layer's FindAllResources
+ *  function.  It walks all resources, compares them to the screen
+ *  number passed in as \a n and calls the appropriate DMX function to
+ *  free the associated resource on the back-end server. */
+static void dmxBEDestroyResources(pointer value, XID id, RESTYPE type,
+				  pointer n)
+{
+    int        scrnNum = (uintptr_t)n;
+    ScreenPtr  pScreen = screenInfo.screens[scrnNum];
+
+    if ((type & TypeMask) == (RT_WINDOW & TypeMask)) {
+	/* Window resources are destroyed below in dmxBEDestroyWindowTree */
+    } else if ((type & TypeMask) == (RT_PIXMAP & TypeMask)) {
+	PixmapPtr  pPix = value;
+	if (pPix->drawable.pScreen->myNum == scrnNum) {
+	    dmxBESavePixmap(pPix);
+	    dmxBEFreePixmap(pPix);
+	}
+    } else if ((type & TypeMask) == (RT_GC & TypeMask)) {
+	GCPtr  pGC = value;
+	if (pGC->pScreen->myNum == scrnNum)
+	    dmxBEFreeGC(pGC);
+    } else if ((type & TypeMask) == (RT_FONT & TypeMask)) {
+	dmxBEFreeFont(pScreen, (FontPtr)value);
+    } else if ((type & TypeMask) == (RT_CURSOR & TypeMask)) {
+	dmxBEFreeCursor(pScreen, (CursorPtr)value);
+    } else if ((type & TypeMask) == (RT_COLORMAP & TypeMask)) {
+	ColormapPtr  pCmap = value;
+	if (pCmap->pScreen->myNum == scrnNum)
+	    dmxBEFreeColormap((ColormapPtr)value);
+    } else if ((type & TypeMask) == (PictureType & TypeMask)) {
+	PicturePtr  pPict = value;
+	if (pPict->pDrawable->pScreen->myNum == scrnNum) {
+	    /* Free the pixmaps on the backend if needed */
+	    if (pPict->pDrawable->type == DRAWABLE_PIXMAP) {
+		PixmapPtr pPixmap = (PixmapPtr)(pPict->pDrawable);
+		dmxBESavePixmap(pPixmap);
+		dmxBEFreePixmap(pPixmap);
+	    }
+	    dmxBEFreePicture((PicturePtr)value);
+	}
+    } else if ((type & TypeMask) == (GlyphSetType & TypeMask)) {
+	dmxBEFreeGlyphSet(pScreen, (GlyphSetPtr)value);
+    } else {
+	/* Other resource types??? */
+    }
+}
+
+/** Destroy the scratch GCs that are created per depth. */
+static void dmxBEDestroyScratchGCs(int scrnNum)
+{
+    ScreenPtr  pScreen = screenInfo.screens[scrnNum];
+    GCPtr     *ppGC    = pScreen->GCperDepth;
+    int        i;
+
+    for (i = 0; i <= pScreen->numDepths; i++)
+	dmxBEFreeGC(ppGC[i]);
+}
+
+/** Destroy window hierachy on back-end server.  To ensure that all
+ *  XDestroyWindow() calls succeed, they must be performed in a bottom
+ *  up order so that windows are not destroyed before their children.
+ *  XDestroyWindow(), which is called from #dmxBEDestroyWindow(), will
+ *  destroy a window as well as all of it's children. */
+static void dmxBEDestroyWindowTree(int idx)
+{
+    WindowPtr  pWin   = screenInfo.screens[idx]->root;
+    WindowPtr  pChild = pWin;
+
+    while (1) {
+	if (pChild->firstChild) {
+	    pChild = pChild->firstChild;
+	    continue;
+	}
+
+	/* Destroy the window */
+	dmxBEDestroyWindow(pChild);
+
+	/* Make sure we destroy the window's border and background
+	 * pixmaps if they exist */
+	if (!pChild->borderIsPixel) {
+	    dmxBESavePixmap(pChild->border.pixmap);
+	    dmxBEFreePixmap(pChild->border.pixmap);
+	}
+	if (pChild->backgroundState == BackgroundPixmap) {
+	    dmxBESavePixmap(pChild->background.pixmap);
+	    dmxBEFreePixmap(pChild->background.pixmap);
+	}
+
+	while (!pChild->nextSib && (pChild != pWin)) {
+	    pChild = pChild->parent;
+	    dmxBEDestroyWindow(pChild);
+	    if (!pChild->borderIsPixel) {
+		dmxBESavePixmap(pChild->border.pixmap);
+		dmxBEFreePixmap(pChild->border.pixmap);
+	    }
+	    if (pChild->backgroundState == BackgroundPixmap) {
+		dmxBESavePixmap(pChild->background.pixmap);
+		dmxBEFreePixmap(pChild->background.pixmap);
+	    }
+	}
+
+	if (pChild == pWin)
+	    break;
+
+	pChild = pChild->nextSib;
+    }
+}
+
+/** Detach back-end screen. */
+int dmxDetachScreen(int idx)
+{
+    DMXScreenInfo *dmxScreen = &dmxScreens[idx];
+    int            i;
+
+    /* Return failure if dynamic addition/removal of screens is disabled */
+    if (!dmxAddRemoveScreens) {
+	dmxLog(dmxWarning,
+	       "Attempting to remove a screen, but the AddRemoveScreen\n");
+	dmxLog(dmxWarning,
+	       "extension has not been enabled.  To enable this extension\n");
+	dmxLog(dmxWarning,
+	       "add the \"-addremovescreens\" option either to the command\n");
+	dmxLog(dmxWarning,
+	       "line or in the configuration file.\n");
+	return 1;
+    }
+
+    /* Cannot remove a screen that does not exist */
+    if (idx < 0 || idx >= dmxNumScreens) return 1;
+
+    /* Cannot detach from a screen that is not opened */
+    if (!dmxScreen->beDisplay) {
+	dmxLog(dmxWarning,
+	       "Attempting to remove screen #%d but it has not been opened\n",
+	       idx);
+	return 1;
+    }
+
+    dmxLogOutput(dmxScreen, "Detaching screen #%d\n", idx);
+
+    /* Detach input */
+    dmxInputDetachAll(dmxScreen);
+
+    /* Save all relevant state (TODO) */
+
+    /* Free all non-window resources related to this screen */
+    for (i = currentMaxClients; --i >= 0; )
+	if (clients[i])
+	    FindAllClientResources(clients[i], dmxBEDestroyResources,
+				   (pointer)(uintptr_t)idx);
+
+    /* Free scratch GCs */
+    dmxBEDestroyScratchGCs(idx);
+
+    /* Free window resources related to this screen */
+    dmxBEDestroyWindowTree(idx);
+
+    /* Free default stipple */
+    dmxBESavePixmap(screenInfo.screens[idx]->PixmapPerDepth[0]);
+    dmxBEFreePixmap(screenInfo.screens[idx]->PixmapPerDepth[0]);
+
+    /* Free the remaining screen resources and close the screen */
+    dmxBECloseScreen(screenInfo.screens[idx]);
+
+    /* Adjust the cursor boundaries (paints detached console window) */
+    dmxAdjustCursorBoundaries();
+
+    return 0; /* Success */
+}
diff --git a/xorg-server/hw/dmx/dmxgc.c b/xorg-server/hw/dmx/dmxgc.c
index 10e93c110..f10f9a074 100644
--- a/xorg-server/hw/dmx/dmxgc.c
+++ b/xorg-server/hw/dmx/dmxgc.c
@@ -1,421 +1,416 @@
-/*

- * Copyright 2001-2004 Red Hat Inc., Durham, North Carolina.

- *

- * All Rights Reserved.

- *

- * Permission is hereby granted, free of charge, to any person obtaining

- * a copy of this software and associated documentation files (the

- * "Software"), to deal in the Software without restriction, including

- * without limitation on the rights to use, copy, modify, merge,

- * publish, distribute, sublicense, and/or sell copies of the Software,

- * and to permit persons to whom the Software is furnished to do so,

- * subject to the following conditions:

- *

- * The above copyright notice and this permission notice (including the

- * next paragraph) shall be included in all copies or substantial

- * portions of the Software.

- *

- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

- * NON-INFRINGEMENT.  IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS

- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

- * SOFTWARE.

- */

-

-/*

- * Authors:

- *   Kevin E. Martin <kem@redhat.com>

- *

- */

-

-/** \file

- * This file provides support for GCs. */

-

-#ifdef HAVE_DMX_CONFIG_H

-#include <dmx-config.h>

-#endif

-

-#include "dmx.h"

-#include "dmxsync.h"

-#include "dmxgc.h"

-#include "dmxgcops.h"

-#include "dmxpixmap.h"

-#include "dmxfont.h"

-

-#include "gcstruct.h"

-#include "pixmapstr.h"

-#include "migc.h"

-

-static GCFuncs dmxGCFuncs = {

-    dmxValidateGC,

-    dmxChangeGC,

-    dmxCopyGC,

-    dmxDestroyGC,

-    dmxChangeClip,

-    dmxDestroyClip,

-    dmxCopyClip,

-};

-

-static GCOps dmxGCOps = {

-    dmxFillSpans,

-    dmxSetSpans,

-    dmxPutImage,

-    dmxCopyArea,

-    dmxCopyPlane,

-    dmxPolyPoint,

-    dmxPolylines,

-    dmxPolySegment,

-    dmxPolyRectangle,

-    dmxPolyArc,

-    dmxFillPolygon,

-    dmxPolyFillRect,

-    dmxPolyFillArc,

-    dmxPolyText8,

-    dmxPolyText16,

-    dmxImageText8,

-    dmxImageText16,

-    dmxImageGlyphBlt,

-    dmxPolyGlyphBlt,

-    dmxPushPixels

-};

-

-/** Initialize the GC on \a pScreen */

-Bool dmxInitGC(ScreenPtr pScreen)

-{

-    if (!dixRegisterPrivateKey(&dmxGCPrivateKeyRec, PRIVATE_GC, sizeof(dmxGCPrivRec)))

-            return FALSE;

-    return TRUE;

-}

-

-/** Create the GC on the back-end server. */

-void dmxBECreateGC(ScreenPtr pScreen, GCPtr pGC)

-{

-    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];

-    dmxGCPrivPtr   pGCPriv = DMX_GET_GC_PRIV(pGC);

-    int            i;

-

-    for (i = 0; i < dmxScreen->beNumPixmapFormats; i++) {

-	if (pGC->depth == dmxScreen->bePixmapFormats[i].depth) {

-	    unsigned long  mask;

-	    XGCValues      gcvals;

-

-	    mask = GCGraphicsExposures;

-	    gcvals.graphics_exposures = FALSE;

-

-	    /* Create GC in the back-end servers */

-	    pGCPriv->gc = XCreateGC(dmxScreen->beDisplay,

-				    dmxScreen->scrnDefDrawables[i],

-				    mask, &gcvals);

-	    break;

-	}

-    }

-}

-

-/** Create a graphics context on the back-end server associated /a pGC's

- *  screen. */

-Bool dmxCreateGC(GCPtr pGC)

-{

-    ScreenPtr      pScreen = pGC->pScreen;

-    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];

-    dmxGCPrivPtr   pGCPriv = DMX_GET_GC_PRIV(pGC);

-    Bool           ret;

-

-    DMX_UNWRAP(CreateGC, dmxScreen, pScreen);

-    if ((ret = pScreen->CreateGC(pGC))) {

-	/* Save the old funcs */

-	pGCPriv->funcs = pGC->funcs;

-	pGCPriv->ops   = NULL;

-

-	pGC->funcs = &dmxGCFuncs;

-

-	if (dmxScreen->beDisplay) {

-	    dmxBECreateGC(pScreen, pGC);

-	} else {

-	    pGCPriv->gc = NULL;

-	}

-

-	/* Check for "magic special case"

-	 * 1. see CreateGC in dix/gc.c for more info

-	 * 2. see dmxChangeGC for more info

-	 */

-	pGCPriv->msc = (!pGC->tileIsPixel && !pGC->tile.pixmap);

-    }

-    DMX_WRAP(CreateGC, dmxCreateGC, dmxScreen, pScreen);

-

-    return ret;

-}

-

-/** Validate a graphics context, \a pGC, locally in the DMX server and

- *  recompute the composite clip, if necessary. */

-void dmxValidateGC(GCPtr pGC, unsigned long changes, DrawablePtr pDrawable)

-{

-    dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);

-

-    DMX_GC_FUNC_PROLOGUE(pGC);

-#if 0

-    pGC->funcs->ValidateGC(pGC, changes, pDrawable);

-#endif

-

-    if (pDrawable->type == DRAWABLE_WINDOW ||

-	pDrawable->type == DRAWABLE_PIXMAP) {

-	/* Save the old ops, since we're about to change the ops in the

-	 * epilogue.

-	 */

-	pGCPriv->ops = pGC->ops;

-    } else {

-	pGCPriv->ops = NULL;

-    }

-

-    /* If the client clip is different or moved OR the subwindowMode has

-     * changed OR the window's clip has changed since the last

-     * validation, then we need to recompute the composite clip.

-     */

-    if ((changes & (GCClipXOrigin |

-		    GCClipYOrigin |

-		    GCClipMask |

-		    GCSubwindowMode)) ||

-	(pDrawable->serialNumber !=

-	 (pGC->serialNumber & DRAWABLE_SERIAL_BITS))) {

-	miComputeCompositeClip(pGC, pDrawable);

-    }

-

-    DMX_GC_FUNC_EPILOGUE(pGC);

-}

-

-/** Set the values in the graphics context on the back-end server

- *  associated with \a pGC's screen. */

-void dmxChangeGC(GCPtr pGC, unsigned long mask)

-{

-    ScreenPtr      pScreen = pGC->pScreen;

-    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];

-    dmxGCPrivPtr   pGCPriv = DMX_GET_GC_PRIV(pGC);

-    XGCValues      v;

-

-    DMX_GC_FUNC_PROLOGUE(pGC);

-#if 0

-    pGC->funcs->ChangeGC(pGC, mask);

-#endif

-

-    /* Handle "magic special case" from CreateGC */

-    if (pGCPriv->msc) {

-	/* The "magic special case" is used to handle the case where a

-	 * foreground pixel is set when the GC is created so that a

-	 * "pseudo default-tile" can be created and used in case the

-	 * fillstyle was set to FillTiled.  This specific case is tested

-	 * in xtest (XCreateGC test #3).  What has happened in dix by

-	 * the time it reaches here is (1) the pGC->tile.pixel has been

-	 * set to pGC->fgPixel and pGC->tileIsPixel is set, (2) if a

-	 * tile has also been set, then pGC->tileIsPixel is unset and

-	 * pGC->tile.pixmap is initialized; else, the default tile is

-	 * created and pGC->tileIsPixel is unset and pGC->tile.pixmap is

-	 * initialized to the "pseudo default-tile".  In either case,

-	 * pGC->tile.pixmap is set; however, in the "magic special case"

-	 * the mask is not updated to allow us to detect that we should

-	 * initialize the GCTile in the back-end server.  Thus, we catch

-	 * this case in dmxCreateGC and add GCTile to the mask here.

-	 * Are there any cases that I've missed?

-	 */

-

-	/* Make sure that the tile.pixmap is set, just in case the user

-         * set GCTile in the mask but forgot to set vals.pixmap

-	 */

-	if (pGC->tile.pixmap) mask |= GCTile;

-

-	/* This only happens once when the GC is created */

-	pGCPriv->msc = FALSE;

-    }

-

-    /* Update back-end server's gc */

-    if (mask & GCFunction)          v.function = pGC->alu;

-    if (mask & GCPlaneMask)         v.plane_mask = pGC->planemask;

-    if (mask & GCForeground)        v.foreground = pGC->fgPixel;

-    if (mask & GCBackground)        v.background = pGC->bgPixel;

-    if (mask & GCLineWidth)         v.line_width = pGC->lineWidth;

-    if (mask & GCLineStyle)         v.line_style = pGC->lineStyle;

-    if (mask & GCCapStyle)          v.cap_style = pGC->capStyle;

-    if (mask & GCJoinStyle)         v.join_style = pGC->joinStyle;

-    if (mask & GCFillStyle)         v.fill_style = pGC->fillStyle;

-    if (mask & GCFillRule)          v.fill_rule = pGC->fillRule;

-    if (mask & GCTile) {

-	if (pGC->tileIsPixel) {

-	    mask &= ~GCTile;

-	} else {

-	    dmxPixPrivPtr  pPixPriv = DMX_GET_PIXMAP_PRIV(pGC->tile.pixmap);

-	    v.tile = (Drawable)pPixPriv->pixmap;

-	}

-    }

-    if (mask & GCStipple) {

-	dmxPixPrivPtr  pPixPriv = DMX_GET_PIXMAP_PRIV(pGC->stipple);

-	v.stipple = (Drawable)pPixPriv->pixmap;

-    }

-    if (mask & GCTileStipXOrigin)   v.ts_x_origin = pGC->patOrg.x; 

-    if (mask & GCTileStipYOrigin)   v.ts_y_origin = pGC->patOrg.y;

-    if (mask & GCFont) {

-	if (dmxScreen->beDisplay) {

-	    dmxFontPrivPtr  pFontPriv;

-	    pFontPriv = FontGetPrivate(pGC->font, dmxFontPrivateIndex);

-	    v.font = pFontPriv->font[pScreen->myNum]->fid;

-	} else {

-	    mask &= ~GCFont;

-	}

-    }

-    if (mask & GCSubwindowMode)     v.subwindow_mode = pGC->subWindowMode;

-

-    /* Graphics exposures are not needed on the back-ends since they can

-       be generated on the front-end thereby saving bandwidth. */

-    if (mask & GCGraphicsExposures) mask &= ~GCGraphicsExposures;

-

-    if (mask & GCClipXOrigin)       v.clip_x_origin = pGC->clipOrg.x;

-    if (mask & GCClipYOrigin)       v.clip_y_origin = pGC->clipOrg.y;

-    if (mask & GCClipMask)          mask &= ~GCClipMask; /* See ChangeClip */

-    if (mask & GCDashOffset)        v.dash_offset = pGC->dashOffset;

-    if (mask & GCDashList) {

-	mask &= ~GCDashList;

-	if (dmxScreen->beDisplay)

-	    XSetDashes(dmxScreen->beDisplay, pGCPriv->gc,

-		       pGC->dashOffset, (char *)pGC->dash,

-		       pGC->numInDashList);

-    }

-    if (mask & GCArcMode)           v.arc_mode = pGC->arcMode;

-

-    if (mask && dmxScreen->beDisplay) {

-	XChangeGC(dmxScreen->beDisplay, pGCPriv->gc, mask, &v);

-	dmxSync(dmxScreen, FALSE);

-    }

-

-    DMX_GC_FUNC_EPILOGUE(pGC);

-}

-

-/** Copy \a pGCSrc to \a pGCDst on the back-end server associated with

- *  \a pGCSrc's screen. */

-void dmxCopyGC(GCPtr pGCSrc, unsigned long changes, GCPtr pGCDst)

-{

-    ScreenPtr      pScreen = pGCSrc->pScreen;

-    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];

-    dmxGCPrivPtr   pGCSrcPriv = DMX_GET_GC_PRIV(pGCSrc);

-    dmxGCPrivPtr   pGCDstPriv = DMX_GET_GC_PRIV(pGCDst);

-

-    DMX_GC_FUNC_PROLOGUE(pGCDst);

-    pGCDst->funcs->CopyGC(pGCSrc, changes, pGCDst);

-

-    /* Copy the GC on the back-end server */

-    if (dmxScreen->beDisplay)

-	XCopyGC(dmxScreen->beDisplay, pGCSrcPriv->gc, changes, pGCDstPriv->gc);

-

-    DMX_GC_FUNC_EPILOGUE(pGCDst);

-}

-

-/** Free the \a pGC on the back-end server. */

-Bool dmxBEFreeGC(GCPtr pGC)

-{

-    ScreenPtr      pScreen   = pGC->pScreen;

-    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];

-    dmxGCPrivPtr   pGCPriv   = DMX_GET_GC_PRIV(pGC);

-

-    if (pGCPriv->gc) {

-	XFreeGC(dmxScreen->beDisplay, pGCPriv->gc);

-	pGCPriv->gc = NULL;

-	return TRUE;

-    }

-

-    return FALSE;

-}

-

-/** Destroy the graphics context, \a pGC and free the corresponding GC

- *  on the back-end server. */

-void dmxDestroyGC(GCPtr pGC)

-{

-    ScreenPtr      pScreen   = pGC->pScreen;

-    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];

-

-    DMX_GC_FUNC_PROLOGUE(pGC);

-

-    /* Free the GC on the back-end server */

-    if (dmxScreen->beDisplay)

-	dmxBEFreeGC(pGC);

-

-    pGC->funcs->DestroyGC(pGC);

-    DMX_GC_FUNC_EPILOGUE(pGC);

-}

-

-/** Change the clip rects for a GC. */

-void dmxChangeClip(GCPtr pGC, int type, pointer pvalue, int nrects)

-{

-    ScreenPtr      pScreen = pGC->pScreen;

-    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];

-    dmxGCPrivPtr   pGCPriv = DMX_GET_GC_PRIV(pGC);

-    XRectangle    *pRects;

-    BoxPtr         pBox;

-    int            i, nRects;

-

-    DMX_GC_FUNC_PROLOGUE(pGC);

-    pGC->funcs->ChangeClip(pGC, type, pvalue, nrects);

-

-    /* Set the client clip on the back-end server */

-    switch (pGC->clientClipType) {

-    case CT_NONE:

-	if (dmxScreen->beDisplay)

-	    XSetClipMask(dmxScreen->beDisplay, pGCPriv->gc, None);

-	break;

-

-    case CT_REGION:

-	if (dmxScreen->beDisplay) {

-	    nRects = RegionNumRects((RegionPtr)pGC->clientClip);

-	    pRects = malloc(nRects * sizeof(*pRects));

-	    pBox   = RegionRects((RegionPtr)pGC->clientClip);

-

-	    for (i = 0; i < nRects; i++) {

-		pRects[i].x      = pBox[i].x1;

-		pRects[i].y      = pBox[i].y1;

-		pRects[i].width  = pBox[i].x2 - pBox[i].x1;

-		pRects[i].height = pBox[i].y2 - pBox[i].y1;

-	    }

-

-	    XSetClipRectangles(dmxScreen->beDisplay, pGCPriv->gc,

-			       pGC->clipOrg.x, pGC->clipOrg.y,

-			       pRects, nRects, Unsorted);

-

-	    free(pRects);

-	}

-	break;

-

-    case CT_PIXMAP:

-    case CT_UNSORTED:

-    case CT_YSORTED:

-    case CT_YXSORTED:

-    case CT_YXBANDED:

-	/* These clip types are condensed down to either NONE or REGION

-           in the mi code */

-	break;

-    }

-

-    DMX_GC_FUNC_EPILOGUE(pGC);

-}

-

-/** Destroy a GC's clip rects. */

-void dmxDestroyClip(GCPtr pGC)

-{

-    ScreenPtr      pScreen = pGC->pScreen;

-    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];

-    dmxGCPrivPtr   pGCPriv = DMX_GET_GC_PRIV(pGC);

-

-    DMX_GC_FUNC_PROLOGUE(pGC);

-    pGC->funcs->DestroyClip(pGC);

-

-    /* Set the client clip on the back-end server to None */

-    if (dmxScreen->beDisplay)

-	XSetClipMask(dmxScreen->beDisplay, pGCPriv->gc, None);

-

-    DMX_GC_FUNC_EPILOGUE(pGC);

-}

-

-/** Copy a GC's clip rects. */

-void dmxCopyClip(GCPtr pGCDst, GCPtr pGCSrc)

-{

-    DMX_GC_FUNC_PROLOGUE(pGCDst);

-    pGCDst->funcs->CopyClip(pGCDst, pGCSrc);

-    DMX_GC_FUNC_EPILOGUE(pGCDst);

-}

+/*
+ * Copyright 2001-2004 Red Hat Inc., Durham, North Carolina.
+ *
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation on the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT.  IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/*
+ * Authors:
+ *   Kevin E. Martin <kem@redhat.com>
+ *
+ */
+
+/** \file
+ * This file provides support for GCs. */
+
+#ifdef HAVE_DMX_CONFIG_H
+#include <dmx-config.h>
+#endif
+
+#include "dmx.h"
+#include "dmxsync.h"
+#include "dmxgc.h"
+#include "dmxgcops.h"
+#include "dmxpixmap.h"
+#include "dmxfont.h"
+
+#include "gcstruct.h"
+#include "pixmapstr.h"
+#include "migc.h"
+
+static GCFuncs dmxGCFuncs = {
+    dmxValidateGC,
+    dmxChangeGC,
+    dmxCopyGC,
+    dmxDestroyGC,
+    dmxChangeClip,
+    dmxDestroyClip,
+    dmxCopyClip,
+};
+
+static GCOps dmxGCOps = {
+    dmxFillSpans,
+    dmxSetSpans,
+    dmxPutImage,
+    dmxCopyArea,
+    dmxCopyPlane,
+    dmxPolyPoint,
+    dmxPolylines,
+    dmxPolySegment,
+    dmxPolyRectangle,
+    dmxPolyArc,
+    dmxFillPolygon,
+    dmxPolyFillRect,
+    dmxPolyFillArc,
+    dmxPolyText8,
+    dmxPolyText16,
+    dmxImageText8,
+    dmxImageText16,
+    dmxImageGlyphBlt,
+    dmxPolyGlyphBlt,
+    dmxPushPixels
+};
+
+/** Initialize the GC on \a pScreen */
+Bool dmxInitGC(ScreenPtr pScreen)
+{
+    if (!dixRegisterPrivateKey(&dmxGCPrivateKeyRec, PRIVATE_GC, sizeof(dmxGCPrivRec)))
+            return FALSE;
+    return TRUE;
+}
+
+/** Create the GC on the back-end server. */
+void dmxBECreateGC(ScreenPtr pScreen, GCPtr pGC)
+{
+    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+    dmxGCPrivPtr   pGCPriv = DMX_GET_GC_PRIV(pGC);
+    int            i;
+
+    for (i = 0; i < dmxScreen->beNumPixmapFormats; i++) {
+	if (pGC->depth == dmxScreen->bePixmapFormats[i].depth) {
+	    unsigned long  mask;
+	    XGCValues      gcvals;
+
+	    mask = GCGraphicsExposures;
+	    gcvals.graphics_exposures = FALSE;
+
+	    /* Create GC in the back-end servers */
+	    pGCPriv->gc = XCreateGC(dmxScreen->beDisplay,
+				    dmxScreen->scrnDefDrawables[i],
+				    mask, &gcvals);
+	    break;
+	}
+    }
+}
+
+/** Create a graphics context on the back-end server associated /a pGC's
+ *  screen. */
+Bool dmxCreateGC(GCPtr pGC)
+{
+    ScreenPtr      pScreen = pGC->pScreen;
+    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+    dmxGCPrivPtr   pGCPriv = DMX_GET_GC_PRIV(pGC);
+    Bool           ret;
+
+    DMX_UNWRAP(CreateGC, dmxScreen, pScreen);
+    if ((ret = pScreen->CreateGC(pGC))) {
+	/* Save the old funcs */
+	pGCPriv->funcs = pGC->funcs;
+	pGCPriv->ops   = NULL;
+
+	pGC->funcs = &dmxGCFuncs;
+
+	if (dmxScreen->beDisplay) {
+	    dmxBECreateGC(pScreen, pGC);
+	} else {
+	    pGCPriv->gc = NULL;
+	}
+
+	/* Check for "magic special case"
+	 * 1. see CreateGC in dix/gc.c for more info
+	 * 2. see dmxChangeGC for more info
+	 */
+	pGCPriv->msc = (!pGC->tileIsPixel && !pGC->tile.pixmap);
+    }
+    DMX_WRAP(CreateGC, dmxCreateGC, dmxScreen, pScreen);
+
+    return ret;
+}
+
+/** Validate a graphics context, \a pGC, locally in the DMX server and
+ *  recompute the composite clip, if necessary. */
+void dmxValidateGC(GCPtr pGC, unsigned long changes, DrawablePtr pDrawable)
+{
+    dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
+
+    DMX_GC_FUNC_PROLOGUE(pGC);
+#if 0
+    pGC->funcs->ValidateGC(pGC, changes, pDrawable);
+#endif
+
+    if (pDrawable->type == DRAWABLE_WINDOW ||
+	pDrawable->type == DRAWABLE_PIXMAP) {
+	/* Save the old ops, since we're about to change the ops in the
+	 * epilogue.
+	 */
+	pGCPriv->ops = pGC->ops;
+    } else {
+	pGCPriv->ops = NULL;
+    }
+
+    /* If the client clip is different or moved OR the subwindowMode has
+     * changed OR the window's clip has changed since the last
+     * validation, then we need to recompute the composite clip.
+     */
+    if ((changes & (GCClipXOrigin |
+		    GCClipYOrigin |
+		    GCClipMask |
+		    GCSubwindowMode)) ||
+	(pDrawable->serialNumber !=
+	 (pGC->serialNumber & DRAWABLE_SERIAL_BITS))) {
+	miComputeCompositeClip(pGC, pDrawable);
+    }
+
+    DMX_GC_FUNC_EPILOGUE(pGC);
+}
+
+/** Set the values in the graphics context on the back-end server
+ *  associated with \a pGC's screen. */
+void dmxChangeGC(GCPtr pGC, unsigned long mask)
+{
+    ScreenPtr      pScreen = pGC->pScreen;
+    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+    dmxGCPrivPtr   pGCPriv = DMX_GET_GC_PRIV(pGC);
+    XGCValues      v;
+
+    DMX_GC_FUNC_PROLOGUE(pGC);
+#if 0
+    pGC->funcs->ChangeGC(pGC, mask);
+#endif
+
+    /* Handle "magic special case" from CreateGC */
+    if (pGCPriv->msc) {
+	/* The "magic special case" is used to handle the case where a
+	 * foreground pixel is set when the GC is created so that a
+	 * "pseudo default-tile" can be created and used in case the
+	 * fillstyle was set to FillTiled.  This specific case is tested
+	 * in xtest (XCreateGC test #3).  What has happened in dix by
+	 * the time it reaches here is (1) the pGC->tile.pixel has been
+	 * set to pGC->fgPixel and pGC->tileIsPixel is set, (2) if a
+	 * tile has also been set, then pGC->tileIsPixel is unset and
+	 * pGC->tile.pixmap is initialized; else, the default tile is
+	 * created and pGC->tileIsPixel is unset and pGC->tile.pixmap is
+	 * initialized to the "pseudo default-tile".  In either case,
+	 * pGC->tile.pixmap is set; however, in the "magic special case"
+	 * the mask is not updated to allow us to detect that we should
+	 * initialize the GCTile in the back-end server.  Thus, we catch
+	 * this case in dmxCreateGC and add GCTile to the mask here.
+	 * Are there any cases that I've missed?
+	 */
+
+	/* Make sure that the tile.pixmap is set, just in case the user
+         * set GCTile in the mask but forgot to set vals.pixmap
+	 */
+	if (pGC->tile.pixmap) mask |= GCTile;
+
+	/* This only happens once when the GC is created */
+	pGCPriv->msc = FALSE;
+    }
+
+    /* Update back-end server's gc */
+    if (mask & GCFunction)          v.function = pGC->alu;
+    if (mask & GCPlaneMask)         v.plane_mask = pGC->planemask;
+    if (mask & GCForeground)        v.foreground = pGC->fgPixel;
+    if (mask & GCBackground)        v.background = pGC->bgPixel;
+    if (mask & GCLineWidth)         v.line_width = pGC->lineWidth;
+    if (mask & GCLineStyle)         v.line_style = pGC->lineStyle;
+    if (mask & GCCapStyle)          v.cap_style = pGC->capStyle;
+    if (mask & GCJoinStyle)         v.join_style = pGC->joinStyle;
+    if (mask & GCFillStyle)         v.fill_style = pGC->fillStyle;
+    if (mask & GCFillRule)          v.fill_rule = pGC->fillRule;
+    if (mask & GCTile) {
+	if (pGC->tileIsPixel) {
+	    mask &= ~GCTile;
+	} else {
+	    dmxPixPrivPtr  pPixPriv = DMX_GET_PIXMAP_PRIV(pGC->tile.pixmap);
+	    v.tile = (Drawable)pPixPriv->pixmap;
+	}
+    }
+    if (mask & GCStipple) {
+	dmxPixPrivPtr  pPixPriv = DMX_GET_PIXMAP_PRIV(pGC->stipple);
+	v.stipple = (Drawable)pPixPriv->pixmap;
+    }
+    if (mask & GCTileStipXOrigin)   v.ts_x_origin = pGC->patOrg.x; 
+    if (mask & GCTileStipYOrigin)   v.ts_y_origin = pGC->patOrg.y;
+    if (mask & GCFont) {
+	if (dmxScreen->beDisplay) {
+	    dmxFontPrivPtr  pFontPriv;
+	    pFontPriv = FontGetPrivate(pGC->font, dmxFontPrivateIndex);
+	    v.font = pFontPriv->font[pScreen->myNum]->fid;
+	} else {
+	    mask &= ~GCFont;
+	}
+    }
+    if (mask & GCSubwindowMode)     v.subwindow_mode = pGC->subWindowMode;
+
+    /* Graphics exposures are not needed on the back-ends since they can
+       be generated on the front-end thereby saving bandwidth. */
+    if (mask & GCGraphicsExposures) mask &= ~GCGraphicsExposures;
+
+    if (mask & GCClipXOrigin)       v.clip_x_origin = pGC->clipOrg.x;
+    if (mask & GCClipYOrigin)       v.clip_y_origin = pGC->clipOrg.y;
+    if (mask & GCClipMask)          mask &= ~GCClipMask; /* See ChangeClip */
+    if (mask & GCDashOffset)        v.dash_offset = pGC->dashOffset;
+    if (mask & GCDashList) {
+	mask &= ~GCDashList;
+	if (dmxScreen->beDisplay)
+	    XSetDashes(dmxScreen->beDisplay, pGCPriv->gc,
+		       pGC->dashOffset, (char *)pGC->dash,
+		       pGC->numInDashList);
+    }
+    if (mask & GCArcMode)           v.arc_mode = pGC->arcMode;
+
+    if (mask && dmxScreen->beDisplay) {
+	XChangeGC(dmxScreen->beDisplay, pGCPriv->gc, mask, &v);
+	dmxSync(dmxScreen, FALSE);
+    }
+
+    DMX_GC_FUNC_EPILOGUE(pGC);
+}
+
+/** Copy \a pGCSrc to \a pGCDst on the back-end server associated with
+ *  \a pGCSrc's screen. */
+void dmxCopyGC(GCPtr pGCSrc, unsigned long changes, GCPtr pGCDst)
+{
+    ScreenPtr      pScreen = pGCSrc->pScreen;
+    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+    dmxGCPrivPtr   pGCSrcPriv = DMX_GET_GC_PRIV(pGCSrc);
+    dmxGCPrivPtr   pGCDstPriv = DMX_GET_GC_PRIV(pGCDst);
+
+    DMX_GC_FUNC_PROLOGUE(pGCDst);
+    pGCDst->funcs->CopyGC(pGCSrc, changes, pGCDst);
+
+    /* Copy the GC on the back-end server */
+    if (dmxScreen->beDisplay)
+	XCopyGC(dmxScreen->beDisplay, pGCSrcPriv->gc, changes, pGCDstPriv->gc);
+
+    DMX_GC_FUNC_EPILOGUE(pGCDst);
+}
+
+/** Free the \a pGC on the back-end server. */
+Bool dmxBEFreeGC(GCPtr pGC)
+{
+    ScreenPtr      pScreen   = pGC->pScreen;
+    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+    dmxGCPrivPtr   pGCPriv   = DMX_GET_GC_PRIV(pGC);
+
+    if (pGCPriv->gc) {
+	XFreeGC(dmxScreen->beDisplay, pGCPriv->gc);
+	pGCPriv->gc = NULL;
+	return TRUE;
+    }
+
+    return FALSE;
+}
+
+/** Destroy the graphics context, \a pGC and free the corresponding GC
+ *  on the back-end server. */
+void dmxDestroyGC(GCPtr pGC)
+{
+    ScreenPtr      pScreen   = pGC->pScreen;
+    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+
+    DMX_GC_FUNC_PROLOGUE(pGC);
+
+    /* Free the GC on the back-end server */
+    if (dmxScreen->beDisplay)
+	dmxBEFreeGC(pGC);
+
+    pGC->funcs->DestroyGC(pGC);
+    DMX_GC_FUNC_EPILOGUE(pGC);
+}
+
+/** Change the clip rects for a GC. */
+void dmxChangeClip(GCPtr pGC, int type, pointer pvalue, int nrects)
+{
+    ScreenPtr      pScreen = pGC->pScreen;
+    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+    dmxGCPrivPtr   pGCPriv = DMX_GET_GC_PRIV(pGC);
+    XRectangle    *pRects;
+    BoxPtr         pBox;
+    int            i, nRects;
+
+    DMX_GC_FUNC_PROLOGUE(pGC);
+    pGC->funcs->ChangeClip(pGC, type, pvalue, nrects);
+
+    /* Set the client clip on the back-end server */
+    switch (pGC->clientClipType) {
+    case CT_NONE:
+	if (dmxScreen->beDisplay)
+	    XSetClipMask(dmxScreen->beDisplay, pGCPriv->gc, None);
+	break;
+
+    case CT_REGION:
+	if (dmxScreen->beDisplay) {
+	    nRects = RegionNumRects((RegionPtr)pGC->clientClip);
+	    pRects = malloc(nRects * sizeof(*pRects));
+	    pBox   = RegionRects((RegionPtr)pGC->clientClip);
+
+	    for (i = 0; i < nRects; i++) {
+		pRects[i].x      = pBox[i].x1;
+		pRects[i].y      = pBox[i].y1;
+		pRects[i].width  = pBox[i].x2 - pBox[i].x1;
+		pRects[i].height = pBox[i].y2 - pBox[i].y1;
+	    }
+
+	    XSetClipRectangles(dmxScreen->beDisplay, pGCPriv->gc,
+			       pGC->clipOrg.x, pGC->clipOrg.y,
+			       pRects, nRects, Unsorted);
+
+	    free(pRects);
+	}
+	break;
+
+    case CT_PIXMAP:
+	/* Condensed down to REGION in the mi code */
+	break;
+    }
+
+    DMX_GC_FUNC_EPILOGUE(pGC);
+}
+
+/** Destroy a GC's clip rects. */
+void dmxDestroyClip(GCPtr pGC)
+{
+    ScreenPtr      pScreen = pGC->pScreen;
+    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
+    dmxGCPrivPtr   pGCPriv = DMX_GET_GC_PRIV(pGC);
+
+    DMX_GC_FUNC_PROLOGUE(pGC);
+    pGC->funcs->DestroyClip(pGC);
+
+    /* Set the client clip on the back-end server to None */
+    if (dmxScreen->beDisplay)
+	XSetClipMask(dmxScreen->beDisplay, pGCPriv->gc, None);
+
+    DMX_GC_FUNC_EPILOGUE(pGC);
+}
+
+/** Copy a GC's clip rects. */
+void dmxCopyClip(GCPtr pGCDst, GCPtr pGCSrc)
+{
+    DMX_GC_FUNC_PROLOGUE(pGCDst);
+    pGCDst->funcs->CopyClip(pGCDst, pGCSrc);
+    DMX_GC_FUNC_EPILOGUE(pGCDst);
+}
diff --git a/xorg-server/hw/dmx/input/dmxinputinit.c b/xorg-server/hw/dmx/input/dmxinputinit.c
index 4b10ecb17..5cbd620c9 100644
--- a/xorg-server/hw/dmx/input/dmxinputinit.c
+++ b/xorg-server/hw/dmx/input/dmxinputinit.c
@@ -1,1306 +1,1274 @@
-/*

- * Copyright 2002-2003 Red Hat Inc., Durham, North Carolina.

- *

- * All Rights Reserved.

- *

- * Permission is hereby granted, free of charge, to any person obtaining

- * a copy of this software and associated documentation files (the

- * "Software"), to deal in the Software without restriction, including

- * without limitation on the rights to use, copy, modify, merge,

- * publish, distribute, sublicense, and/or sell copies of the Software,

- * and to permit persons to whom the Software is furnished to do so,

- * subject to the following conditions:

- *

- * The above copyright notice and this permission notice (including the

- * next paragraph) shall be included in all copies or substantial

- * portions of the Software.

- *

- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

- * NON-INFRINGEMENT.  IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS

- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

- * SOFTWARE.

- */

-

-/*

- * Authors:

- *   Rickard E. (Rik) Faith <faith@redhat.com>

- *

- */

-

-/** \file

- * This file provides generic input support.  Functions here set up

- * input and lead to the calling of low-level device drivers for

- * input. */

-

-#ifdef HAVE_DMX_CONFIG_H

-#include <dmx-config.h>

-#endif

-

-#define DMX_WINDOW_DEBUG 0

-

-#include "dmxinputinit.h"

-#include "dmxextension.h"       /* For dmxInputCount */

-

-#include "dmxdummy.h"

-#include "dmxbackend.h"

-#include "dmxconsole.h"

-#include "dmxcommon.h"

-#include "dmxevents.h"

-#include "dmxmotion.h"

-#include "dmxprop.h"

-#include "config/dmxconfig.h"

-#include "dmxcursor.h"

-

-#include "lnx-keyboard.h"

-#include "lnx-ms.h"

-#include "lnx-ps2.h"

-#include "usb-keyboard.h"

-#include "usb-mouse.h"

-#include "usb-other.h"

-#include "usb-common.h"

-

-#include "dmxsigio.h"

-#include "dmxarg.h"

-

-#include "inputstr.h"

-#include "input.h"

-#include "mipointer.h"

-#include "windowstr.h"

-#include "mi.h"

-#include "xkbsrv.h"

-

-#include <X11/extensions/XI.h>

-#include <X11/extensions/XIproto.h>

-#include "exevents.h"

-#include "extinit.h"

-

-DMXLocalInputInfoPtr dmxLocalCorePointer, dmxLocalCoreKeyboard;

-

-static DMXLocalInputInfoRec DMXDummyMou = {

-    "dummy-mou", DMX_LOCAL_MOUSE, DMX_LOCAL_TYPE_LOCAL, 1,

-    NULL, NULL, NULL, NULL, NULL, dmxDummyMouGetInfo

-};

-

-static DMXLocalInputInfoRec DMXDummyKbd = {

-    "dummy-kbd", DMX_LOCAL_KEYBOARD, DMX_LOCAL_TYPE_LOCAL, 1,

-    NULL, NULL, NULL, NULL, NULL, dmxDummyKbdGetInfo

-};

-

-static DMXLocalInputInfoRec DMXBackendMou = {

-    "backend-mou", DMX_LOCAL_MOUSE, DMX_LOCAL_TYPE_BACKEND, 2,

-    dmxBackendCreatePrivate, dmxBackendDestroyPrivate,

-    dmxBackendInit, NULL, dmxBackendLateReInit, dmxBackendMouGetInfo,

-    dmxCommonMouOn, dmxCommonMouOff, dmxBackendUpdatePosition,

-    NULL, NULL, NULL,

-    dmxBackendCollectEvents, dmxBackendProcessInput, dmxBackendFunctions, NULL,

-    dmxCommonMouCtrl

-};

-

-static DMXLocalInputInfoRec DMXBackendKbd = {

-    "backend-kbd", DMX_LOCAL_KEYBOARD, DMX_LOCAL_TYPE_BACKEND,

-    1, /* With backend-mou or console-mou */

-    dmxCommonCopyPrivate, NULL,

-    dmxBackendInit, NULL, NULL, dmxBackendKbdGetInfo,

-    dmxCommonKbdOn, dmxCommonKbdOff, NULL,

-    NULL, NULL, NULL,

-    NULL, NULL, NULL, NULL,

-    NULL, dmxCommonKbdCtrl, dmxCommonKbdBell

-};

-

-static DMXLocalInputInfoRec DMXConsoleMou = {

-    "console-mou", DMX_LOCAL_MOUSE, DMX_LOCAL_TYPE_CONSOLE, 2,

-    dmxConsoleCreatePrivate, dmxConsoleDestroyPrivate,

-    dmxConsoleInit, dmxConsoleReInit, NULL, dmxConsoleMouGetInfo,

-    dmxCommonMouOn, dmxCommonMouOff, dmxConsoleUpdatePosition,

-    NULL, NULL, NULL,

-    dmxConsoleCollectEvents, NULL, dmxConsoleFunctions, dmxConsoleUpdateInfo,

-    dmxCommonMouCtrl

-};

-

-static DMXLocalInputInfoRec DMXConsoleKbd = {

-    "console-kbd", DMX_LOCAL_KEYBOARD, DMX_LOCAL_TYPE_CONSOLE,

-    1, /* With backend-mou or console-mou */

-    dmxCommonCopyPrivate, NULL,

-    dmxConsoleInit, dmxConsoleReInit, NULL, dmxConsoleKbdGetInfo,

-    dmxCommonKbdOn, dmxCommonKbdOff, NULL,

-    NULL, NULL, NULL,

-    NULL, NULL, NULL, NULL,

-    NULL, dmxCommonKbdCtrl, dmxCommonKbdBell

-};

-

-static DMXLocalInputInfoRec DMXCommonOth = {

-    "common-oth", DMX_LOCAL_OTHER, DMX_LOCAL_TYPE_COMMON, 1,

-    dmxCommonCopyPrivate, NULL,

-    NULL, NULL, NULL, dmxCommonOthGetInfo,

-    dmxCommonOthOn, dmxCommonOthOff

-};

-

-

-static DMXLocalInputInfoRec DMXLocalDevices[] = {

-                                /* Dummy drivers that can compile on any OS */

-#ifdef __linux__

-                                /* Linux-specific drivers */

-    {

-        "kbd", DMX_LOCAL_KEYBOARD, DMX_LOCAL_TYPE_LOCAL, 1,

-        kbdLinuxCreatePrivate, kbdLinuxDestroyPrivate,

-        kbdLinuxInit, NULL, NULL, kbdLinuxGetInfo,

-        kbdLinuxOn, kbdLinuxOff, NULL,

-        kbdLinuxVTPreSwitch, kbdLinuxVTPostSwitch, kbdLinuxVTSwitch,

-        kbdLinuxRead, NULL, NULL, NULL,

-        NULL, kbdLinuxCtrl, kbdLinuxBell

-    },

-    {

-        "ms", DMX_LOCAL_MOUSE, DMX_LOCAL_TYPE_LOCAL, 1,

-        msLinuxCreatePrivate, msLinuxDestroyPrivate,

-        msLinuxInit, NULL, NULL, msLinuxGetInfo,

-        msLinuxOn, msLinuxOff, NULL,

-        msLinuxVTPreSwitch, msLinuxVTPostSwitch, NULL,

-        msLinuxRead

-    },

-    {

-        "ps2", DMX_LOCAL_MOUSE, DMX_LOCAL_TYPE_LOCAL, 1,

-        ps2LinuxCreatePrivate, ps2LinuxDestroyPrivate,

-        ps2LinuxInit, NULL, NULL, ps2LinuxGetInfo,

-        ps2LinuxOn, ps2LinuxOff, NULL,

-        ps2LinuxVTPreSwitch, ps2LinuxVTPostSwitch, NULL,

-        ps2LinuxRead

-    },

-#endif

-#ifdef __linux__

-                                /* USB drivers, currently only for

-                                   Linux, but relatively easy to port to

-                                   other OSs */

-    {

-        "usb-kbd", DMX_LOCAL_KEYBOARD, DMX_LOCAL_TYPE_LOCAL, 1,

-        usbCreatePrivate, usbDestroyPrivate,

-        kbdUSBInit, NULL, NULL, kbdUSBGetInfo,

-        kbdUSBOn, usbOff, NULL,

-        NULL, NULL, NULL,

-        kbdUSBRead, NULL, NULL, NULL,

-        NULL, kbdUSBCtrl

-    },

-    {

-        "usb-mou", DMX_LOCAL_MOUSE, DMX_LOCAL_TYPE_LOCAL, 1,

-        usbCreatePrivate, usbDestroyPrivate,

-        mouUSBInit, NULL, NULL, mouUSBGetInfo,

-        mouUSBOn, usbOff, NULL,

-        NULL, NULL, NULL,

-        mouUSBRead

-    },

-    {

-        "usb-oth", DMX_LOCAL_OTHER, DMX_LOCAL_TYPE_LOCAL, 1,

-        usbCreatePrivate, usbDestroyPrivate,

-        othUSBInit, NULL, NULL, othUSBGetInfo,

-        othUSBOn, usbOff, NULL,

-        NULL, NULL, NULL,

-        othUSBRead

-    },

-#endif

-    {

-        "dummy-mou", DMX_LOCAL_MOUSE, DMX_LOCAL_TYPE_LOCAL, 1,

-        NULL, NULL, NULL, NULL, NULL, dmxDummyMouGetInfo

-    },

-    {

-        "dummy-kbd", DMX_LOCAL_KEYBOARD, DMX_LOCAL_TYPE_LOCAL, 1,

-        NULL, NULL, NULL, NULL, NULL, dmxDummyKbdGetInfo

-    },

-    { NULL }                    /* Must be last */

-};

-

-

-#if 11 /*BP*/

-void

-DDXRingBell(int volume, int pitch, int duration)

-{

-   /* NO-OP */

-}

-

-/* taken from kdrive/src/kinput.c: */

-static void

-dmxKbdCtrl (DeviceIntPtr pDevice, KeybdCtrl *ctrl)

-{

-#if 0

-    KdKeyboardInfo *ki;

-

-    for (ki = kdKeyboards; ki; ki = ki->next) {

-        if (ki->dixdev && ki->dixdev->id == pDevice->id)

-            break;

-    }

-

-    if (!ki || !ki->dixdev || ki->dixdev->id != pDevice->id || !ki->driver)

-        return;

-

-    KdSetLeds(ki, ctrl->leds);

-    ki->bellPitch = ctrl->bell_pitch;

-    ki->bellDuration = ctrl->bell_duration; 

-#endif

-}

-

-/* taken from kdrive/src/kinput.c: */

-static void

-dmxBell(int volume, DeviceIntPtr pDev, pointer arg, int something)

-{

-#if 0

-    KeybdCtrl *ctrl = arg;

-    KdKeyboardInfo *ki = NULL;

-    

-    for (ki = kdKeyboards; ki; ki = ki->next) {

-        if (ki->dixdev && ki->dixdev->id == pDev->id)

-            break;

-    }

-

-    if (!ki || !ki->dixdev || ki->dixdev->id != pDev->id || !ki->driver)

-        return;

-    

-    KdRingBell(ki, volume, ctrl->bell_pitch, ctrl->bell_duration);

-#endif

-}

-

-#endif /*BP*/

-

-static void _dmxChangePointerControl(DMXLocalInputInfoPtr dmxLocal,

-                                     PtrCtrl *ctrl)

-{

-    if (!dmxLocal) return;

-    dmxLocal->mctrl = *ctrl;

-    if (dmxLocal->mCtrl) dmxLocal->mCtrl(&dmxLocal->pDevice->public, ctrl);

-}

-

-/** Change the pointer control information for the \a pDevice.  If the

- * device sends core events, then also change the control information

- * for all of the pointer devices that send core events. */

-void dmxChangePointerControl(DeviceIntPtr pDevice, PtrCtrl *ctrl)

-{

-    GETDMXLOCALFROMPDEVICE;

-    int i, j;

-

-    if (dmxLocal->sendsCore) {       /* Do for all core devices */

-        for (i = 0; i < dmxNumInputs; i++) {

-            DMXInputInfo *dmxInput = &dmxInputs[i];

-            if (dmxInput->detached) continue;

-            for (j = 0; j < dmxInput->numDevs; j++)

-                if (dmxInput->devs[j]->sendsCore)

-                    _dmxChangePointerControl(dmxInput->devs[j], ctrl);

-        }

-    } else {                    /* Do for this device only */

-        _dmxChangePointerControl(dmxLocal, ctrl);

-    }

-}

-

-static void _dmxKeyboardKbdCtrlProc(DMXLocalInputInfoPtr dmxLocal,

-                                    KeybdCtrl *ctrl)

-{

-    dmxLocal->kctrl = *ctrl;

-    if (dmxLocal->kCtrl) {

-        dmxLocal->kCtrl(&dmxLocal->pDevice->public, ctrl);

-        if (dmxLocal->pDevice->kbdfeed) {

-            XkbEventCauseRec cause;

-            XkbSetCauseUnknown(&cause);

-            /* Generate XKB events, as necessary */

-            XkbUpdateIndicators(dmxLocal->pDevice, XkbAllIndicatorsMask, False,

-                                NULL, &cause);

-        }

-    }

-}

-

-

-/** Change the keyboard control information for the \a pDevice.  If the

- * device sends core events, then also change the control information

- * for all of the keyboard devices that send core events. */

-void dmxKeyboardKbdCtrlProc(DeviceIntPtr pDevice, KeybdCtrl *ctrl)

-{

-    GETDMXLOCALFROMPDEVICE;

-    int i, j;

-

-    if (dmxLocal->sendsCore) {       /* Do for all core devices */

-        for (i = 0; i < dmxNumInputs; i++) {

-            DMXInputInfo *dmxInput = &dmxInputs[i];

-            if (dmxInput->detached) continue;

-            for (j = 0; j < dmxInput->numDevs; j++)

-                if (dmxInput->devs[j]->sendsCore)

-                    _dmxKeyboardKbdCtrlProc(dmxInput->devs[j], ctrl);

-        }

-    } else {                    /* Do for this device only */

-        _dmxKeyboardKbdCtrlProc(dmxLocal, ctrl);

-    }

-}

-

-static void _dmxKeyboardBellProc(DMXLocalInputInfoPtr dmxLocal, int percent)

-{

-    if (dmxLocal->kBell) dmxLocal->kBell(&dmxLocal->pDevice->public,

-                                         percent,

-                                         dmxLocal->kctrl.bell,

-                                         dmxLocal->kctrl.bell_pitch,

-                                         dmxLocal->kctrl.bell_duration);

-}

-

-/** Sound the bell on the device.  If the device send core events, then

- * sound the bell on all of the devices that send core events. */

-void dmxKeyboardBellProc(int percent, DeviceIntPtr pDevice,

-                         pointer ctrl, int unknown)

-{

-    GETDMXLOCALFROMPDEVICE;

-    int i, j;

-

-    if (dmxLocal->sendsCore) {       /* Do for all core devices */

-        for (i = 0; i < dmxNumInputs; i++) {

-            DMXInputInfo *dmxInput = &dmxInputs[i];

-            if (dmxInput->detached) continue;

-            for (j = 0; j < dmxInput->numDevs; j++)

-                if (dmxInput->devs[j]->sendsCore)

-                    _dmxKeyboardBellProc(dmxInput->devs[j], percent);

-        }

-    } else {                    /* Do for this device only */

-        _dmxKeyboardBellProc(dmxLocal, percent);

-    }

-}

-

-static void dmxKeyboardFreeNames(XkbComponentNamesPtr names)

-{

-    if (names->keycodes) XFree(names->keycodes);

-    if (names->types)    XFree(names->types);

-    if (names->compat)   XFree(names->compat);

-    if (names->symbols)  XFree(names->symbols);

-    if (names->geometry) XFree(names->geometry);

-}

-

-

-static int dmxKeyboardOn(DeviceIntPtr pDevice, DMXLocalInitInfo *info)

-{

-    GETDMXINPUTFROMPDEVICE;

-    XkbRMLVOSet rmlvo;

-

-    rmlvo.rules = dmxConfigGetXkbRules();

-    rmlvo.model = dmxConfigGetXkbModel();

-    rmlvo.layout = dmxConfigGetXkbLayout();

-    rmlvo.variant = dmxConfigGetXkbVariant();

-    rmlvo.options = dmxConfigGetXkbOptions();

-

-    XkbSetRulesDflts(&rmlvo);

-    if (!info->force && (dmxInput->keycodes

-                         || dmxInput->symbols

-                         || dmxInput->geometry)) {

-        if (info->freenames) dmxKeyboardFreeNames(&info->names);

-        info->freenames      = 0;

-        info->names.keycodes = dmxInput->keycodes;

-        info->names.types    = NULL;

-        info->names.compat   = NULL;

-        info->names.symbols  = dmxInput->symbols;

-        info->names.geometry = dmxInput->geometry;

-

-        dmxLogInput(dmxInput, "XKEYBOARD: From command line: %s",

-                    info->names.keycodes);

-        if (info->names.symbols && *info->names.symbols)

-            dmxLogInputCont(dmxInput, " %s", info->names.symbols);

-        if (info->names.geometry && *info->names.geometry)

-            dmxLogInputCont(dmxInput, " %s", info->names.geometry);

-        dmxLogInputCont(dmxInput, "\n");

-    } else if (info->names.keycodes) {

-        dmxLogInput(dmxInput, "XKEYBOARD: From device: %s",

-                    info->names.keycodes);

-        if (info->names.symbols && *info->names.symbols)

-            dmxLogInputCont(dmxInput, " %s", info->names.symbols);

-        if (info->names.geometry && *info->names.geometry)

-            dmxLogInputCont(dmxInput, " %s", info->names.geometry);

-        dmxLogInputCont(dmxInput, "\n");

-    } else {

-        dmxLogInput(dmxInput, "XKEYBOARD: Defaults: %s %s %s %s %s\n",

-                    dmxConfigGetXkbRules(),

-                    dmxConfigGetXkbLayout(),

-                    dmxConfigGetXkbModel(),

-                    dmxConfigGetXkbVariant()

-                    ? dmxConfigGetXkbVariant() : "",

-                    dmxConfigGetXkbOptions()

-                    ? dmxConfigGetXkbOptions() : "");

-    }

-    InitKeyboardDeviceStruct(pDevice, &rmlvo,

-                                dmxKeyboardBellProc,

-                                dmxKeyboardKbdCtrlProc);

-

-    if (info->freenames) dmxKeyboardFreeNames(&info->names);

-

-    return Success;

-}

-

-    

-static int dmxDeviceOnOff(DeviceIntPtr pDevice, int what)

-{

-    GETDMXINPUTFROMPDEVICE;

-    int              fd;

-    DMXLocalInitInfo info;

-    int              i;

-    Atom             btn_labels[MAX_BUTTONS] = {0}; /* FIXME */

-    Atom             axis_labels[MAX_VALUATORS] = {0}; /* FIXME */

-

-    if (dmxInput->detached) return Success;

-

-    memset(&info, 0, sizeof(info));

-    switch (what) {

-    case DEVICE_INIT:

-        if (dmxLocal->init)

-            dmxLocal->init(pDev);

-        if (dmxLocal->get_info)

-            dmxLocal->get_info(pDev, &info);

-        if (info.keyboard) {    /* XKEYBOARD makes this a special case */

-            dmxKeyboardOn(pDevice, &info);

-            break;

-        }

-        if (info.keyClass) {

-            XkbRMLVOSet rmlvo;

-

-            rmlvo.rules = dmxConfigGetXkbRules();

-            rmlvo.model = dmxConfigGetXkbModel();

-            rmlvo.layout = dmxConfigGetXkbLayout();

-            rmlvo.variant = dmxConfigGetXkbVariant();

-            rmlvo.options = dmxConfigGetXkbOptions();

-

-            InitKeyboardDeviceStruct(pDevice,

-                                     &rmlvo,

-                                     dmxBell, dmxKbdCtrl);

-        }

-        if (info.buttonClass) {

-            InitButtonClassDeviceStruct(pDevice, info.numButtons,

-                                        btn_labels, info.map);

-        }

-        if (info.valuatorClass) {

-            if (info.numRelAxes && dmxLocal->sendsCore) {

-                InitValuatorClassDeviceStruct(pDevice, info.numRelAxes,

-                                              axis_labels,

-                                              GetMaximumEventsNum(),

-                                              Relative);

-                for (i = 0; i < info.numRelAxes; i++)

-                    InitValuatorAxisStruct(pDevice, i, axis_labels[i],

-                                           info.minval[i], info.maxval[i],

-                                           info.res[i],

-                                           info.minres[i], info.maxres[i],

-                                           Relative);

-            } else if (info.numRelAxes) {

-                InitValuatorClassDeviceStruct(pDevice, info.numRelAxes,

-                                              axis_labels,

-                                              dmxPointerGetMotionBufferSize(),

-                                              Relative);

-                for (i = 0; i < info.numRelAxes; i++)

-                    InitValuatorAxisStruct(pDevice, i, axis_labels[i],

-                                           info.minval[i],

-                                           info.maxval[i], info.res[i],

-                                           info.minres[i], info.maxres[i],

-                                           Relative);

-            } else if (info.numAbsAxes) {

-                InitValuatorClassDeviceStruct(pDevice, info.numAbsAxes,

-                                              axis_labels,

-                                              dmxPointerGetMotionBufferSize(),

-                                              Absolute);

-                for (i = 0; i < info.numAbsAxes; i++)

-                    InitValuatorAxisStruct(pDevice, i,

-                                           axis_labels[i],

-                                           info.minval[i], info.maxval[i],

-                                           info.res[i], info.minres[i],

-                                           info.maxres[i], Absolute);

-            }

-        }

-        if (info.focusClass)       InitFocusClassDeviceStruct(pDevice);

-        if (info.proximityClass)   InitProximityClassDeviceStruct(pDevice);

-        if (info.ptrFeedbackClass)

-            InitPtrFeedbackClassDeviceStruct(pDevice, dmxChangePointerControl);

-        if (info.intFeedbackClass || info.strFeedbackClass)

-            dmxLog(dmxWarning,

-                   "Integer and string feedback not supported for %s\n",

-                   pDevice->name);

-        if (!info.keyboard && (info.ledFeedbackClass || info.belFeedbackClass))

-            dmxLog(dmxWarning,

-                   "Led and bel feedback not supported for non-keyboard %s\n",

-                   pDevice->name);

-        break;

-    case DEVICE_ON:

-        if (!pDev->on) {

-            if (dmxLocal->on && (fd = dmxLocal->on(pDev)) >= 0)

-                dmxSigioRegister(dmxInput, fd);

-            pDev->on = TRUE;

-        }

-        break;

-    case DEVICE_OFF:

-    case DEVICE_CLOSE:

-            /* This can get called twice consecutively: once for a

-             * detached screen (DEVICE_OFF), and then again at server

-             * generation time (DEVICE_CLOSE). */

-        if (pDev->on) {

-            dmxSigioUnregister(dmxInput);

-            if (dmxLocal->off) dmxLocal->off(pDev);

-            pDev->on = FALSE;

-        }

-        break;

-    }

-    if (info.keySyms.map && info.freemap) {

-        XFree(info.keySyms.map);

-        info.keySyms.map = NULL;

-    }

-    if (info.xkb) XkbFreeKeyboard(info.xkb, 0, True);

-    return Success;

-}

-

-static void dmxProcessInputEvents(DMXInputInfo *dmxInput)

-{

-    int i;

-

-    mieqProcessInputEvents();

-#if 00 /*BP*/

-    miPointerUpdate();

-#endif

-    if (dmxInput->detached)

-        return;

-    for (i = 0; i < dmxInput->numDevs; i += dmxInput->devs[i]->binding)

-        if (dmxInput->devs[i]->process_input) {

-#if 11 /*BP*/

-            miPointerUpdateSprite(dmxInput->devs[i]->pDevice);

-#endif

-            dmxInput->devs[i]->process_input(dmxInput->devs[i]->private);

-        }

-

-#if 11 /*BP*/

-    mieqProcessInputEvents();

-#endif

-}

-

-static void dmxUpdateWindowInformation(DMXInputInfo *dmxInput,

-                                       DMXUpdateType type,

-                                       WindowPtr pWindow)

-{

-    int i;

-

-#ifdef PANORAMIX

-    if (!noPanoramiXExtension && pWindow && pWindow->parent != screenInfo.screens[0]->root)

-        return;

-#endif

-#if DMX_WINDOW_DEBUG

-    {

-        const char *name = "Unknown";

-        switch (type) {

-        case DMX_UPDATE_REALIZE:            name = "Realize";         break;

-        case DMX_UPDATE_UNREALIZE:          name = "Unrealize";       break;

-        case DMX_UPDATE_RESTACK:            name = "Restack";         break;

-        case DMX_UPDATE_COPY:               name = "Copy";            break;

-        case DMX_UPDATE_RESIZE:             name = "Resize";          break;

-        case DMX_UPDATE_REPARENT:           name = "Repaint";         break;

-        }

-        dmxLog(dmxDebug, "Window %p changed: %s\n", pWindow, name);

-    }

-#endif

-

-    if (dmxInput->detached)

-        return;

-    for (i = 0; i < dmxInput->numDevs; i += dmxInput->devs[i]->binding)

-        if (dmxInput->devs[i]->update_info)

-            dmxInput->devs[i]->update_info(dmxInput->devs[i]->private,

-                                           type, pWindow);

-}

-

-static void dmxCollectAll(DMXInputInfo *dmxInput)

-{

-    int i;

-

-    if (dmxInput->detached)

-        return;

-    for (i = 0; i < dmxInput->numDevs; i += dmxInput->devs[i]->binding)

-        if (dmxInput->devs[i]->collect_events)

-            dmxInput->devs[i]->collect_events(&dmxInput->devs[i]->pDevice->public,

-                                              dmxMotion,

-                                              dmxEnqueue,

-                                              dmxCheckSpecialKeys, DMX_BLOCK);

-}

-

-static void dmxBlockHandler(pointer blockData, OSTimePtr pTimeout,

-                            pointer pReadMask)

-{

-    DMXInputInfo    *dmxInput = &dmxInputs[(int)blockData];

-    static unsigned long generation = 0;

-    

-    if (generation != serverGeneration) {

-        generation = serverGeneration;

-        dmxCollectAll(dmxInput);

-    }

-}

-

-static void dmxSwitchReturn(pointer p)

-{

-    DMXInputInfo *dmxInput = p;

-    int          i;

-    

-    dmxLog(dmxInfo, "Returning from VT %d\n", dmxInput->vt_switched);

-

-    if (!dmxInput->vt_switched)

-        dmxLog(dmxFatal, "dmxSwitchReturn called, but not switched\n");

-    dmxSigioEnableInput();

-    for (i = 0; i < dmxInput->numDevs; i++)

-        if (dmxInput->devs[i]->vt_post_switch)

-            dmxInput->devs[i]->vt_post_switch(dmxInput->devs[i]->private);

-    dmxInput->vt_switched = 0;

-}

-

-static void dmxWakeupHandler(pointer blockData, int result, pointer pReadMask)

-{

-    DMXInputInfo *dmxInput = &dmxInputs[(int)blockData];

-    int          i;

-

-    if (dmxInput->vt_switch_pending) {

-        dmxLog(dmxInfo, "Switching to VT %d\n", dmxInput->vt_switch_pending);

-        for (i = 0; i < dmxInput->numDevs; i++)

-            if (dmxInput->devs[i]->vt_pre_switch)

-                dmxInput->devs[i]->vt_pre_switch(dmxInput->devs[i]->private);

-        dmxInput->vt_switched       = dmxInput->vt_switch_pending;

-        dmxInput->vt_switch_pending = 0;

-        for (i = 0; i < dmxInput->numDevs; i++) {

-            if (dmxInput->devs[i]->vt_switch) {

-                dmxSigioDisableInput();

-                if (!dmxInput->devs[i]->vt_switch(dmxInput->devs[i]->private,

-                                                  dmxInput->vt_switched,

-                                                  dmxSwitchReturn,

-                                                  dmxInput))

-                    dmxSwitchReturn(dmxInput);

-                break;          /* Only call one vt_switch routine */

-            }

-        }

-    }

-    dmxCollectAll(dmxInput);

-}

-

-static char *dmxMakeUniqueDeviceName(DMXLocalInputInfoPtr dmxLocal)

-{

-    static int           k = 0;

-    static int           m = 0;

-    static int           o = 0;

-    static unsigned long dmxGeneration = 0;

-#define LEN  32

-    char *               buf = malloc(LEN);

-

-    if (dmxGeneration != serverGeneration) {

-        k = m = o     = 0;

-        dmxGeneration = serverGeneration;

-    }

-

-    switch (dmxLocal->type) {

-    case DMX_LOCAL_KEYBOARD: XmuSnprintf(buf, LEN, "Keyboard%d", k++); break;

-    case DMX_LOCAL_MOUSE:    XmuSnprintf(buf, LEN, "Mouse%d", m++);    break;

-    default:                 XmuSnprintf(buf, LEN, "Other%d", o++);    break;

-    }

-

-    return buf;

-}

-

-static DeviceIntPtr dmxAddDevice(DMXLocalInputInfoPtr dmxLocal)

-{

-    DeviceIntPtr pDevice;

-    Atom         atom;

-    const char   *name = NULL;

-    char         *devname;

-    DMXInputInfo *dmxInput;

-

-    if (!dmxLocal)

-        return NULL;

-    dmxInput = &dmxInputs[dmxLocal->inputIdx];

-

-    if (dmxLocal->sendsCore) {

-        if (dmxLocal->type == DMX_LOCAL_KEYBOARD && !dmxLocalCoreKeyboard) {

-            dmxLocal->isCore     = 1;

-            dmxLocalCoreKeyboard = dmxLocal;

-            name                 = "keyboard";

-        }

-        if (dmxLocal->type == DMX_LOCAL_MOUSE && !dmxLocalCorePointer) {

-            dmxLocal->isCore     = 1;

-            dmxLocalCorePointer  = dmxLocal;

-            name                 = "pointer";

-        }

-    }

-

-    if (!name) {

-        name            = "extension";

-    }

-

-    if (!name)

-        dmxLog(dmxFatal, "Cannot add device %s\n", dmxLocal->name);

-

-    pDevice                       = AddInputDevice(serverClient, dmxDeviceOnOff, TRUE);

-    if (!pDevice) {

-        dmxLog(dmxError, "Too many devices -- cannot add device %s\n",

-               dmxLocal->name);

-        return NULL;

-    }

-    pDevice->public.devicePrivate = dmxLocal;

-    dmxLocal->pDevice             = pDevice;

-

-    devname       = dmxMakeUniqueDeviceName(dmxLocal);

-    atom          = MakeAtom((char *)devname, strlen(devname), TRUE);

-    pDevice->type = atom;

-    pDevice->name = devname;

-

-    if (dmxLocal->isCore && dmxLocal->type == DMX_LOCAL_MOUSE) {

-#if 00 /*BP*/

-        miRegisterPointerDevice(screenInfo.screens[0], pDevice);

-#else

-        /* Nothing? dmxDeviceOnOff() should get called to init, right? */

-#endif

-    }

-

-    if (dmxLocal->create_private)

-        dmxLocal->private = dmxLocal->create_private(pDevice);

-

-    dmxLogInput(dmxInput, "Added %s as %s device called %s%s\n",

-                dmxLocal->name, name, devname,

-                dmxLocal->isCore

-                ? " [core]"

-                : (dmxLocal->sendsCore

-                   ? " [sends core events]"

-                   : ""));

-

-    return pDevice;

-}

-

-static DMXLocalInputInfoPtr dmxLookupLocal(const char *name)

-{

-    DMXLocalInputInfoPtr pt;

-    

-    for (pt = &DMXLocalDevices[0]; pt->name; ++pt)

-        if (!strcmp(pt->name, name)) return pt; /* search for device name */

-    return NULL;

-}

-

-/** Copy the local input information from \a s into a new \a devs slot

- * in \a dmxInput. */

-DMXLocalInputInfoPtr dmxInputCopyLocal(DMXInputInfo *dmxInput,

-                                       DMXLocalInputInfoPtr s)

-{

-    DMXLocalInputInfoPtr dmxLocal = malloc(sizeof(*dmxLocal));

-    

-    if (!dmxLocal)

-        dmxLog(dmxFatal, "DMXLocalInputInfoPtr: out of memory\n");

-

-    memcpy(dmxLocal, s, sizeof(*dmxLocal));

-    dmxLocal->inputIdx       = dmxInput->inputIdx;

-    dmxLocal->sendsCore      = dmxInput->core;

-    dmxLocal->savedSendsCore = dmxInput->core;

-    dmxLocal->deviceId       = -1;

-

-    ++dmxInput->numDevs;

-    dmxInput->devs = realloc(dmxInput->devs,

-                              dmxInput->numDevs * sizeof(*dmxInput->devs));

-    dmxInput->devs[dmxInput->numDevs-1] = dmxLocal;

-    

-    return dmxLocal;

-}

-

-static void dmxPopulateLocal(DMXInputInfo *dmxInput, dmxArg a)

-{

-    int                  i;

-    int                  help = 0;

-    DMXLocalInputInfoRec *pt;

-

-    for (i = 1; i < dmxArgC(a); i++) {

-        const char *name = dmxArgV(a, i);

-        if ((pt = dmxLookupLocal(name))) {

-            dmxInputCopyLocal(dmxInput, pt);

-        } else {

-            if (strlen(name))

-                dmxLog(dmxWarning,

-                       "Could not find a driver called %s\n", name);

-            ++help;

-        }

-    }

-    if (help) {

-        dmxLog(dmxInfo, "Available local device drivers:\n");

-        for (pt = &DMXLocalDevices[0]; pt->name; ++pt) {

-            const char *type;

-            switch (pt->type) {

-            case DMX_LOCAL_KEYBOARD: type = "keyboard"; break;

-            case DMX_LOCAL_MOUSE:    type = "pointer";  break;

-            default:                 type = "unknown";  break;

-            }

-            dmxLog(dmxInfo, "   %s (%s)\n", pt->name, type);

-        }

-        dmxLog(dmxFatal, "Must have valid local device driver\n");

-    }

-}

-

-int dmxInputExtensionErrorHandler(Display *dsp, _Xconst char *name, _Xconst char *reason)

-{

-    return 0;

-}

-

-static void dmxInputScanForExtensions(DMXInputInfo *dmxInput, int doXI)

-{

-    XExtensionVersion    *ext;

-    XDeviceInfo          *devices;

-    Display              *display;

-    int                  num;

-    int                  i, j;

-    XextErrorHandler     handler;

-

-    if (!(display = XOpenDisplay(dmxInput->name))) return;

-    

-    /* Print out information about the XInput Extension. */

-    handler = XSetExtensionErrorHandler(dmxInputExtensionErrorHandler);

-    ext     = XGetExtensionVersion(display, INAME);

-    XSetExtensionErrorHandler(handler);

-    

-    if (!ext || ext == (XExtensionVersion *)NoSuchExtension) {

-        dmxLogInput(dmxInput, "%s is not available\n", INAME);

-    } else {

-        dmxLogInput(dmxInput, "Locating devices on %s (%s version %d.%d)\n",

-                    dmxInput->name, INAME,

-                    ext->major_version, ext->minor_version);

-        devices = XListInputDevices(display, &num);

-

-        XFree(ext);

-        ext = NULL;

-

-                                /* Print a list of all devices */

-        for (i = 0; i < num; i++) {

-            const char *use = "Unknown";

-            switch (devices[i].use) {

-            case IsXPointer:           use = "XPointer";         break;

-            case IsXKeyboard:          use = "XKeyboard";        break;

-            case IsXExtensionDevice:   use = "XExtensionDevice"; break;

-            case IsXExtensionPointer:  use = "XExtensionPointer"; break;

-            case IsXExtensionKeyboard: use = "XExtensionKeyboard"; break;

-            }

-            dmxLogInput(dmxInput, "  %2d %-10.10s %-16.16s\n",

-                        devices[i].id,

-                        devices[i].name ? devices[i].name : "",

-                        use);

-        }

-

-                                /* Search for extensions */

-        for (i = 0; i < num; i++) {

-            switch (devices[i].use) {

-            case IsXKeyboard:

-                for (j = 0; j < dmxInput->numDevs; j++) {

-                    DMXLocalInputInfoPtr dmxL = dmxInput->devs[j];

-                    if (dmxL->type == DMX_LOCAL_KEYBOARD

-                        && dmxL->deviceId < 0) {

-                        dmxL->deviceId   = devices[i].id;

-                        dmxL->deviceName = (devices[i].name

-                                            ? strdup(devices[i].name)

-                                            : NULL);

-                    }

-                }

-                break;

-            case IsXPointer:

-                for (j = 0; j < dmxInput->numDevs; j++) {

-                    DMXLocalInputInfoPtr dmxL = dmxInput->devs[j];

-                    if (dmxL->type == DMX_LOCAL_MOUSE && dmxL->deviceId < 0) {

-                        dmxL->deviceId   = devices[i].id;

-                        dmxL->deviceName = (devices[i].name

-                                            ? xstrdup(devices[i].name)

-                                            : NULL);

-                    }

-                }

-                break;

-#if 0

-            case IsXExtensionDevice:

-            case IsXExtensionKeyboard:

-            case IsXExtensionPointer:

-                if (doXI) {

-                    if (!dmxInput->numDevs) {

-                        dmxLog(dmxWarning,

-                               "Cannot use remote (%s) XInput devices if"

-                               " not also using core devices\n",

-                               dmxInput->name);

-                    } else {

-                        dmxLocal             = dmxInputCopyLocal(dmxInput,

-                                                                &DMXCommonOth);

-                        dmxLocal->isCore     = FALSE;

-                        dmxLocal->sendsCore  = FALSE;

-                        dmxLocal->deviceId   = devices[i].id;

-                        dmxLocal->deviceName = (devices[i].name

-                                                ? strdup(devices[i].name)

-                                                : NULL);

-                    }

-                }

-                break;

-#endif

-            }

-        }

-        XFreeDeviceList(devices);

-    }

-    XCloseDisplay(display);

-}

-

-/** Re-initialize all the devices described in \a dmxInput.  Called from

-    #dmxAdjustCursorBoundaries before the cursor is redisplayed. */

-void dmxInputReInit(DMXInputInfo *dmxInput)

-{

-    int i;

-

-    for (i = 0; i < dmxInput->numDevs; i++) {

-        DMXLocalInputInfoPtr dmxLocal = dmxInput->devs[i];

-        if (dmxLocal->reinit)

-            dmxLocal->reinit(&dmxLocal->pDevice->public);

-    }

-}

-

-/** Re-initialize all the devices described in \a dmxInput.  Called from

-    #dmxAdjustCursorBoundaries after the cursor is redisplayed. */

-void dmxInputLateReInit(DMXInputInfo *dmxInput)

-{

-    int i;

-

-    for (i = 0; i < dmxInput->numDevs; i++) {

-        DMXLocalInputInfoPtr dmxLocal = dmxInput->devs[i];

-        if (dmxLocal->latereinit)

-            dmxLocal->latereinit(&dmxLocal->pDevice->public);

-    }

-}

-

-/** Initialize all of the devices described in \a dmxInput. */

-void dmxInputInit(DMXInputInfo *dmxInput)

-{

-    DeviceIntPtr         pPointer = NULL, pKeyboard = NULL;

-    dmxArg               a;

-    const char           *name;

-    int                  i;

-    int                  doXI               = 1; /* Include by default */

-    int                  forceConsole       = 0;

-    int                  doWindows          = 1; /* On by default */

-    int                  hasXkb             = 0;

-

-    a = dmxArgParse(dmxInput->name);

-

-    for (i = 1; i < dmxArgC(a); i++) {

-        switch (hasXkb) {

-        case 1:

-            dmxInput->keycodes = xstrdup(dmxArgV(a, i));

-            ++hasXkb;

-            break;

-        case 2:

-            dmxInput->symbols  = xstrdup(dmxArgV(a, i));

-            ++hasXkb;

-            break;

-        case 3:

-            dmxInput->geometry = xstrdup(dmxArgV(a, i));

-            hasXkb = 0;

-            break;

-        case 0:

-            if      (!strcmp(dmxArgV(a, i), "noxi"))      doXI         = 0;

-            else if (!strcmp(dmxArgV(a, i), "xi"))        doXI         = 1;

-            else if (!strcmp(dmxArgV(a, i), "console"))   forceConsole = 1;

-            else if (!strcmp(dmxArgV(a, i), "noconsole")) forceConsole = 0;

-            else if (!strcmp(dmxArgV(a, i), "windows"))   doWindows    = 1;

-            else if (!strcmp(dmxArgV(a, i), "nowindows")) doWindows    = 0;

-            else if (!strcmp(dmxArgV(a, i), "xkb"))       hasXkb       = 1;

-            else {

-                dmxLog(dmxFatal,

-                       "Unknown input argument: %s\n", dmxArgV(a, i));

-            }

-        }

-    }

-

-    name = dmxArgV(a, 0);

-

-    if (!strcmp(name, "local")) {

-        dmxPopulateLocal(dmxInput, a);

-    } else if (!strcmp(name, "dummy")) {

-        dmxInputCopyLocal(dmxInput, &DMXDummyMou);

-        dmxInputCopyLocal(dmxInput, &DMXDummyKbd);

-        dmxLogInput(dmxInput, "Using dummy input\n");

-    } else {

-        int found;

-

-        for (found = 0, i = 0; i < dmxNumScreens; i++) {

-            if (dmxPropertySameDisplay(&dmxScreens[i], name)) {

-                if (dmxScreens[i].shared)

-                    dmxLog(dmxFatal,

-                           "Cannot take input from shared backend (%s)\n",

-                           name);

-                if (!dmxInput->core) {

-                    dmxLog(dmxWarning,

-                           "Cannot use core devices on a backend (%s)"

-                           " as XInput devices\n", name);

-                } else {

-                    char *pt;

-                    for (pt = (char *)dmxInput->name; pt && *pt; pt++)

-                        if (*pt == ',') *pt = '\0';

-                    dmxInputCopyLocal(dmxInput, &DMXBackendMou);

-                    dmxInputCopyLocal(dmxInput, &DMXBackendKbd);

-                    dmxInput->scrnIdx = i;

-                    dmxLogInput(dmxInput,

-                                "Using backend input from %s\n", name);

-                }

-                ++found;

-                break;

-            }

-        }

-        if (!found || forceConsole) {

-            char *pt;

-            if (found) dmxInput->console = TRUE;

-            for (pt = (char *)dmxInput->name; pt && *pt; pt++)

-                if (*pt == ',') *pt = '\0';

-            dmxInputCopyLocal(dmxInput, &DMXConsoleMou);

-            dmxInputCopyLocal(dmxInput, &DMXConsoleKbd);

-            if (doWindows) {

-                dmxInput->windows          = TRUE;

-                dmxInput->updateWindowInfo = dmxUpdateWindowInformation;

-            }

-            dmxLogInput(dmxInput,

-                        "Using console input from %s (%s windows)\n",

-                        name, doWindows ? "with" : "without");

-        }

-    }

-

-    dmxArgFree(a);

-

-                                /* Locate extensions we may be interested in */

-    dmxInputScanForExtensions(dmxInput, doXI);

-    

-    for (i = 0; i < dmxInput->numDevs; i++) {

-        DMXLocalInputInfoPtr dmxLocal = dmxInput->devs[i];

-        dmxLocal->pDevice = dmxAddDevice(dmxLocal);

-        if (dmxLocal->isCore) {

-            if (dmxLocal->type == DMX_LOCAL_MOUSE)

-                pPointer  = dmxLocal->pDevice;

-            if (dmxLocal->type == DMX_LOCAL_KEYBOARD)

-                pKeyboard = dmxLocal->pDevice;

-        }

-    }

-    

-    dmxInput->processInputEvents    = dmxProcessInputEvents;

-    dmxInput->detached              = False;

-    

-    RegisterBlockAndWakeupHandlers(dmxBlockHandler,

-                                   dmxWakeupHandler,

-                                   (void *)dmxInput->inputIdx);

-}

-

-static void dmxInputFreeLocal(DMXLocalInputInfoRec *local)

-{

-    if (!local) return;

-    if (local->isCore && local->type == DMX_LOCAL_MOUSE)

-        dmxLocalCorePointer  = NULL;

-    if (local->isCore && local->type == DMX_LOCAL_KEYBOARD)

-        dmxLocalCoreKeyboard = NULL;

-    if (local->destroy_private) local->destroy_private(local->private);

-    free(local->history);

-    free(local->valuators);

-    free(local->deviceName);

-    local->private    = NULL;

-    local->history    = NULL;

-    local->deviceName = NULL;

-    free(local);

-}

-

-/** Free all of the memory associated with \a dmxInput */

-void dmxInputFree(DMXInputInfo *dmxInput)

-{

-    int i;

-    

-    if (!dmxInput) return;

-

-    free(dmxInput->keycodes);

-    free(dmxInput->symbols);

-    free(dmxInput->geometry);

-

-    for (i = 0; i < dmxInput->numDevs; i++) {

-        dmxInputFreeLocal(dmxInput->devs[i]);

-        dmxInput->devs[i] = NULL;

-    }

-    free(dmxInput->devs);

-    dmxInput->devs    = NULL;

-    dmxInput->numDevs = 0;

-    if (dmxInput->freename) free(dmxInput->name);

-    dmxInput->name    = NULL;

-}

-

-/** Log information about all of the known devices using #dmxLog(). */

-void dmxInputLogDevices(void)

-{

-    int i, j;

-

-    dmxLog(dmxInfo, "%d devices:\n", dmxGetInputCount());

-    dmxLog(dmxInfo, "  Id  Name                 Classes\n");

-    for (j = 0; j < dmxNumInputs; j++) {

-        DMXInputInfo *dmxInput = &dmxInputs[j];

-        const char   *pt = strchr(dmxInput->name, ',');

-        int          len = (pt

-                            ? (size_t)(pt-dmxInput->name)

-                            : strlen(dmxInput->name));

-

-        for (i = 0; i < dmxInput->numDevs; i++) {

-            DeviceIntPtr pDevice = dmxInput->devs[i]->pDevice;

-            if (pDevice) {

-                dmxLog(dmxInfo, "  %2d%c %-20.20s",

-                       pDevice->id,

-                       dmxInput->detached ? 'D' : ' ',

-                       pDevice->name);

-                if (pDevice->key)        dmxLogCont(dmxInfo, " key");

-                if (pDevice->valuator)   dmxLogCont(dmxInfo, " val");

-                if (pDevice->button)     dmxLogCont(dmxInfo, " btn");

-                if (pDevice->focus)      dmxLogCont(dmxInfo, " foc");

-                if (pDevice->kbdfeed)    dmxLogCont(dmxInfo, " fb/kbd");

-                if (pDevice->ptrfeed)    dmxLogCont(dmxInfo, " fb/ptr");

-                if (pDevice->intfeed)    dmxLogCont(dmxInfo, " fb/int");

-                if (pDevice->stringfeed) dmxLogCont(dmxInfo, " fb/str");

-                if (pDevice->bell)       dmxLogCont(dmxInfo, " fb/bel");

-                if (pDevice->leds)       dmxLogCont(dmxInfo, " fb/led");

-                if (!pDevice->key && !pDevice->valuator && !pDevice->button

-                    && !pDevice->focus && !pDevice->kbdfeed

-                    && !pDevice->ptrfeed && !pDevice->intfeed

-                    && !pDevice->stringfeed && !pDevice->bell

-                    && !pDevice->leds)   dmxLogCont(dmxInfo, " (none)");

-                                                                 

-                dmxLogCont(dmxInfo, "\t[i%d/%*.*s",

-                           dmxInput->inputIdx, len, len, dmxInput->name);

-                if (dmxInput->devs[i]->deviceId >= 0)

-                    dmxLogCont(dmxInfo, "/id%d", dmxInput->devs[i]->deviceId);

-                if (dmxInput->devs[i]->deviceName)

-                    dmxLogCont(dmxInfo, "=%s", dmxInput->devs[i]->deviceName);

-                dmxLogCont(dmxInfo, "] %s\n",

-                           dmxInput->devs[i]->isCore

-                           ? "core"

-                           : (dmxInput->devs[i]->sendsCore

-                              ? "extension (sends core events)"

-                              : "extension"));

-            }

-        }

-    }

-}

-

-/** Detach an input */

-int dmxInputDetach(DMXInputInfo *dmxInput)

-{

-    int i;

-

-    if (dmxInput->detached) return BadAccess;

-    

-    for (i = 0; i < dmxInput->numDevs; i++) {

-        DMXLocalInputInfoPtr dmxLocal = dmxInput->devs[i];

-        dmxLogInput(dmxInput, "Detaching device id %d: %s%s\n",

-                    dmxLocal->pDevice->id,

-                    dmxLocal->pDevice->name,

-                    dmxLocal->isCore

-                    ? " [core]"

-                    : (dmxLocal->sendsCore

-                       ? " [sends core events]"

-                       : ""));

-        DisableDevice(dmxLocal->pDevice, TRUE);

-    }

-    dmxInput->detached = True;

-    dmxInputLogDevices();

-    return 0;

-}

-

-/** Search for input associated with \a dmxScreen, and detach. */

-void dmxInputDetachAll(DMXScreenInfo *dmxScreen)

-{

-    int i;

-

-    for (i = 0; i < dmxNumInputs; i++) {

-        DMXInputInfo *dmxInput = &dmxInputs[i];

-        if (dmxInput->scrnIdx == dmxScreen->index) dmxInputDetach(dmxInput);

-    }

-}

-

-/** Search for input associated with \a deviceId, and detach. */

-int dmxInputDetachId(int id)

-{

-    DMXInputInfo *dmxInput = dmxInputLocateId(id);

-

-    if (!dmxInput) return BadValue;

-    

-    return dmxInputDetach(dmxInput);

-}

-

-DMXInputInfo *dmxInputLocateId(int id)

-{

-    int i, j;

-    

-    for (i = 0; i < dmxNumInputs; i++) {

-        DMXInputInfo *dmxInput = &dmxInputs[i];

-        for (j = 0; j < dmxInput->numDevs; j++) {

-            DMXLocalInputInfoPtr dmxLocal = dmxInput->devs[j];

-            if (dmxLocal->pDevice->id == id) return dmxInput;

-        }

-    }

-    return NULL;

-}

-

-static int dmxInputAttachNew(DMXInputInfo *dmxInput, int *id)

-{

-    dmxInputInit(dmxInput);

-    InitAndStartDevices();

-    if (id && dmxInput->devs) *id = dmxInput->devs[0]->pDevice->id;

-    dmxInputLogDevices();

-    return 0;

-}

-

-static int dmxInputAttachOld(DMXInputInfo *dmxInput, int *id)

-{

-    int i;

-    

-    dmxInput->detached = False;

-    for (i = 0; i < dmxInput->numDevs; i++) {

-        DMXLocalInputInfoPtr dmxLocal = dmxInput->devs[i];

-        if (id) *id = dmxLocal->pDevice->id;

-        dmxLogInput(dmxInput,

-                    "Attaching device id %d: %s%s\n",

-                    dmxLocal->pDevice->id,

-                    dmxLocal->pDevice->name,

-                    dmxLocal->isCore

-                    ? " [core]"

-                    : (dmxLocal->sendsCore

-                       ? " [sends core events]"

-                       : ""));

-        EnableDevice(dmxLocal->pDevice, TRUE);

-    }

-    dmxInputLogDevices();

-    return 0;

-}

-

-int dmxInputAttachConsole(const char *name, int isCore, int *id)

-{

-    DMXInputInfo  *dmxInput;

-    int           i;

-

-    for (i = 0; i < dmxNumInputs; i++) {

-        dmxInput = &dmxInputs[i];

-        if (dmxInput->scrnIdx == -1

-            && dmxInput->detached

-            && !strcmp(dmxInput->name, name)) {

-                                /* Found match */

-            dmxLogInput(dmxInput, "Reattaching detached console input\n");

-            return dmxInputAttachOld(dmxInput, id);

-        }

-    }

-

-                                /* No match found */

-    dmxInput = dmxConfigAddInput(xstrdup(name), isCore);

-    dmxInput->freename = TRUE;

-    dmxLogInput(dmxInput, "Attaching new console input\n");

-    return dmxInputAttachNew(dmxInput, id);

-}

-

-int dmxInputAttachBackend(int physicalScreen, int isCore, int *id)

-{

-    DMXInputInfo  *dmxInput;

-    DMXScreenInfo *dmxScreen;

-    int           i;

-    

-    if (physicalScreen < 0 || physicalScreen >= dmxNumScreens) return BadValue;

-    for (i = 0; i < dmxNumInputs; i++) {

-        dmxInput = &dmxInputs[i];

-        if (dmxInput->scrnIdx != -1 && dmxInput->scrnIdx == physicalScreen) {

-                                /* Found match */

-            if (!dmxInput->detached) return BadAccess; /* Already attached */

-            dmxScreen = &dmxScreens[physicalScreen];

-            if (!dmxScreen->beDisplay) return BadAccess; /* Screen detached */

-            dmxLogInput(dmxInput, "Reattaching detached backend input\n");

-            return dmxInputAttachOld(dmxInput, id);

-        }

-    }

-                                /* No match found */

-    dmxScreen = &dmxScreens[physicalScreen];

-    if (!dmxScreen->beDisplay) return BadAccess; /* Screen detached */

-    dmxInput = dmxConfigAddInput(dmxScreen->name, isCore);

-    dmxLogInput(dmxInput, "Attaching new backend input\n");

-    return dmxInputAttachNew(dmxInput, id);

-}

+/*
+ * Copyright 2002-2003 Red Hat Inc., Durham, North Carolina.
+ *
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation on the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT.  IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/*
+ * Authors:
+ *   Rickard E. (Rik) Faith <faith@redhat.com>
+ *
+ */
+
+/** \file
+ * This file provides generic input support.  Functions here set up
+ * input and lead to the calling of low-level device drivers for
+ * input. */
+
+#ifdef HAVE_DMX_CONFIG_H
+#include <dmx-config.h>
+#endif
+
+#define DMX_WINDOW_DEBUG 0
+
+#include "dmxinputinit.h"
+#include "dmxextension.h"       /* For dmxInputCount */
+
+#include "dmxdummy.h"
+#include "dmxbackend.h"
+#include "dmxconsole.h"
+#include "dmxcommon.h"
+#include "dmxevents.h"
+#include "dmxmotion.h"
+#include "dmxprop.h"
+#include "config/dmxconfig.h"
+#include "dmxcursor.h"
+
+#include "lnx-keyboard.h"
+#include "lnx-ms.h"
+#include "lnx-ps2.h"
+#include "usb-keyboard.h"
+#include "usb-mouse.h"
+#include "usb-other.h"
+#include "usb-common.h"
+
+#include "dmxsigio.h"
+#include "dmxarg.h"
+
+#include "inputstr.h"
+#include "input.h"
+#include "mipointer.h"
+#include "windowstr.h"
+#include "mi.h"
+#include "xkbsrv.h"
+
+#include <X11/extensions/XI.h>
+#include <X11/extensions/XIproto.h>
+#include "exevents.h"
+#include "extinit.h"
+
+DMXLocalInputInfoPtr dmxLocalCorePointer, dmxLocalCoreKeyboard;
+
+static DMXLocalInputInfoRec DMXDummyMou = {
+    "dummy-mou", DMX_LOCAL_MOUSE, DMX_LOCAL_TYPE_LOCAL, 1,
+    NULL, NULL, NULL, NULL, NULL, dmxDummyMouGetInfo
+};
+
+static DMXLocalInputInfoRec DMXDummyKbd = {
+    "dummy-kbd", DMX_LOCAL_KEYBOARD, DMX_LOCAL_TYPE_LOCAL, 1,
+    NULL, NULL, NULL, NULL, NULL, dmxDummyKbdGetInfo
+};
+
+static DMXLocalInputInfoRec DMXBackendMou = {
+    "backend-mou", DMX_LOCAL_MOUSE, DMX_LOCAL_TYPE_BACKEND, 2,
+    dmxBackendCreatePrivate, dmxBackendDestroyPrivate,
+    dmxBackendInit, NULL, dmxBackendLateReInit, dmxBackendMouGetInfo,
+    dmxCommonMouOn, dmxCommonMouOff, dmxBackendUpdatePosition,
+    NULL, NULL, NULL,
+    dmxBackendCollectEvents, dmxBackendProcessInput, dmxBackendFunctions, NULL,
+    dmxCommonMouCtrl
+};
+
+static DMXLocalInputInfoRec DMXBackendKbd = {
+    "backend-kbd", DMX_LOCAL_KEYBOARD, DMX_LOCAL_TYPE_BACKEND,
+    1, /* With backend-mou or console-mou */
+    dmxCommonCopyPrivate, NULL,
+    dmxBackendInit, NULL, NULL, dmxBackendKbdGetInfo,
+    dmxCommonKbdOn, dmxCommonKbdOff, NULL,
+    NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL,
+    NULL, dmxCommonKbdCtrl, dmxCommonKbdBell
+};
+
+static DMXLocalInputInfoRec DMXConsoleMou = {
+    "console-mou", DMX_LOCAL_MOUSE, DMX_LOCAL_TYPE_CONSOLE, 2,
+    dmxConsoleCreatePrivate, dmxConsoleDestroyPrivate,
+    dmxConsoleInit, dmxConsoleReInit, NULL, dmxConsoleMouGetInfo,
+    dmxCommonMouOn, dmxCommonMouOff, dmxConsoleUpdatePosition,
+    NULL, NULL, NULL,
+    dmxConsoleCollectEvents, NULL, dmxConsoleFunctions, dmxConsoleUpdateInfo,
+    dmxCommonMouCtrl
+};
+
+static DMXLocalInputInfoRec DMXConsoleKbd = {
+    "console-kbd", DMX_LOCAL_KEYBOARD, DMX_LOCAL_TYPE_CONSOLE,
+    1, /* With backend-mou or console-mou */
+    dmxCommonCopyPrivate, NULL,
+    dmxConsoleInit, dmxConsoleReInit, NULL, dmxConsoleKbdGetInfo,
+    dmxCommonKbdOn, dmxCommonKbdOff, NULL,
+    NULL, NULL, NULL,
+    NULL, NULL, NULL, NULL,
+    NULL, dmxCommonKbdCtrl, dmxCommonKbdBell
+};
+
+static DMXLocalInputInfoRec DMXLocalDevices[] = {
+                                /* Dummy drivers that can compile on any OS */
+#ifdef __linux__
+                                /* Linux-specific drivers */
+    {
+        "kbd", DMX_LOCAL_KEYBOARD, DMX_LOCAL_TYPE_LOCAL, 1,
+        kbdLinuxCreatePrivate, kbdLinuxDestroyPrivate,
+        kbdLinuxInit, NULL, NULL, kbdLinuxGetInfo,
+        kbdLinuxOn, kbdLinuxOff, NULL,
+        kbdLinuxVTPreSwitch, kbdLinuxVTPostSwitch, kbdLinuxVTSwitch,
+        kbdLinuxRead, NULL, NULL, NULL,
+        NULL, kbdLinuxCtrl, kbdLinuxBell
+    },
+    {
+        "ms", DMX_LOCAL_MOUSE, DMX_LOCAL_TYPE_LOCAL, 1,
+        msLinuxCreatePrivate, msLinuxDestroyPrivate,
+        msLinuxInit, NULL, NULL, msLinuxGetInfo,
+        msLinuxOn, msLinuxOff, NULL,
+        msLinuxVTPreSwitch, msLinuxVTPostSwitch, NULL,
+        msLinuxRead
+    },
+    {
+        "ps2", DMX_LOCAL_MOUSE, DMX_LOCAL_TYPE_LOCAL, 1,
+        ps2LinuxCreatePrivate, ps2LinuxDestroyPrivate,
+        ps2LinuxInit, NULL, NULL, ps2LinuxGetInfo,
+        ps2LinuxOn, ps2LinuxOff, NULL,
+        ps2LinuxVTPreSwitch, ps2LinuxVTPostSwitch, NULL,
+        ps2LinuxRead
+    },
+#endif
+#ifdef __linux__
+                                /* USB drivers, currently only for
+                                   Linux, but relatively easy to port to
+                                   other OSs */
+    {
+        "usb-kbd", DMX_LOCAL_KEYBOARD, DMX_LOCAL_TYPE_LOCAL, 1,
+        usbCreatePrivate, usbDestroyPrivate,
+        kbdUSBInit, NULL, NULL, kbdUSBGetInfo,
+        kbdUSBOn, usbOff, NULL,
+        NULL, NULL, NULL,
+        kbdUSBRead, NULL, NULL, NULL,
+        NULL, kbdUSBCtrl
+    },
+    {
+        "usb-mou", DMX_LOCAL_MOUSE, DMX_LOCAL_TYPE_LOCAL, 1,
+        usbCreatePrivate, usbDestroyPrivate,
+        mouUSBInit, NULL, NULL, mouUSBGetInfo,
+        mouUSBOn, usbOff, NULL,
+        NULL, NULL, NULL,
+        mouUSBRead
+    },
+    {
+        "usb-oth", DMX_LOCAL_OTHER, DMX_LOCAL_TYPE_LOCAL, 1,
+        usbCreatePrivate, usbDestroyPrivate,
+        othUSBInit, NULL, NULL, othUSBGetInfo,
+        othUSBOn, usbOff, NULL,
+        NULL, NULL, NULL,
+        othUSBRead
+    },
+#endif
+    {
+        "dummy-mou", DMX_LOCAL_MOUSE, DMX_LOCAL_TYPE_LOCAL, 1,
+        NULL, NULL, NULL, NULL, NULL, dmxDummyMouGetInfo
+    },
+    {
+        "dummy-kbd", DMX_LOCAL_KEYBOARD, DMX_LOCAL_TYPE_LOCAL, 1,
+        NULL, NULL, NULL, NULL, NULL, dmxDummyKbdGetInfo
+    },
+    { NULL }                    /* Must be last */
+};
+
+
+#if 11 /*BP*/
+void
+DDXRingBell(int volume, int pitch, int duration)
+{
+   /* NO-OP */
+}
+
+/* taken from kdrive/src/kinput.c: */
+static void
+dmxKbdCtrl (DeviceIntPtr pDevice, KeybdCtrl *ctrl)
+{
+#if 0
+    KdKeyboardInfo *ki;
+
+    for (ki = kdKeyboards; ki; ki = ki->next) {
+        if (ki->dixdev && ki->dixdev->id == pDevice->id)
+            break;
+    }
+
+    if (!ki || !ki->dixdev || ki->dixdev->id != pDevice->id || !ki->driver)
+        return;
+
+    KdSetLeds(ki, ctrl->leds);
+    ki->bellPitch = ctrl->bell_pitch;
+    ki->bellDuration = ctrl->bell_duration; 
+#endif
+}
+
+/* taken from kdrive/src/kinput.c: */
+static void
+dmxBell(int volume, DeviceIntPtr pDev, pointer arg, int something)
+{
+#if 0
+    KeybdCtrl *ctrl = arg;
+    KdKeyboardInfo *ki = NULL;
+    
+    for (ki = kdKeyboards; ki; ki = ki->next) {
+        if (ki->dixdev && ki->dixdev->id == pDev->id)
+            break;
+    }
+
+    if (!ki || !ki->dixdev || ki->dixdev->id != pDev->id || !ki->driver)
+        return;
+    
+    KdRingBell(ki, volume, ctrl->bell_pitch, ctrl->bell_duration);
+#endif
+}
+
+#endif /*BP*/
+
+static void _dmxChangePointerControl(DMXLocalInputInfoPtr dmxLocal,
+                                     PtrCtrl *ctrl)
+{
+    if (!dmxLocal) return;
+    dmxLocal->mctrl = *ctrl;
+    if (dmxLocal->mCtrl) dmxLocal->mCtrl(&dmxLocal->pDevice->public, ctrl);
+}
+
+/** Change the pointer control information for the \a pDevice.  If the
+ * device sends core events, then also change the control information
+ * for all of the pointer devices that send core events. */
+void dmxChangePointerControl(DeviceIntPtr pDevice, PtrCtrl *ctrl)
+{
+    GETDMXLOCALFROMPDEVICE;
+    int i, j;
+
+    if (dmxLocal->sendsCore) {       /* Do for all core devices */
+        for (i = 0; i < dmxNumInputs; i++) {
+            DMXInputInfo *dmxInput = &dmxInputs[i];
+            if (dmxInput->detached) continue;
+            for (j = 0; j < dmxInput->numDevs; j++)
+                if (dmxInput->devs[j]->sendsCore)
+                    _dmxChangePointerControl(dmxInput->devs[j], ctrl);
+        }
+    } else {                    /* Do for this device only */
+        _dmxChangePointerControl(dmxLocal, ctrl);
+    }
+}
+
+static void _dmxKeyboardKbdCtrlProc(DMXLocalInputInfoPtr dmxLocal,
+                                    KeybdCtrl *ctrl)
+{
+    dmxLocal->kctrl = *ctrl;
+    if (dmxLocal->kCtrl) {
+        dmxLocal->kCtrl(&dmxLocal->pDevice->public, ctrl);
+        if (dmxLocal->pDevice->kbdfeed) {
+            XkbEventCauseRec cause;
+            XkbSetCauseUnknown(&cause);
+            /* Generate XKB events, as necessary */
+            XkbUpdateIndicators(dmxLocal->pDevice, XkbAllIndicatorsMask, False,
+                                NULL, &cause);
+        }
+    }
+}
+
+
+/** Change the keyboard control information for the \a pDevice.  If the
+ * device sends core events, then also change the control information
+ * for all of the keyboard devices that send core events. */
+void dmxKeyboardKbdCtrlProc(DeviceIntPtr pDevice, KeybdCtrl *ctrl)
+{
+    GETDMXLOCALFROMPDEVICE;
+    int i, j;
+
+    if (dmxLocal->sendsCore) {       /* Do for all core devices */
+        for (i = 0; i < dmxNumInputs; i++) {
+            DMXInputInfo *dmxInput = &dmxInputs[i];
+            if (dmxInput->detached) continue;
+            for (j = 0; j < dmxInput->numDevs; j++)
+                if (dmxInput->devs[j]->sendsCore)
+                    _dmxKeyboardKbdCtrlProc(dmxInput->devs[j], ctrl);
+        }
+    } else {                    /* Do for this device only */
+        _dmxKeyboardKbdCtrlProc(dmxLocal, ctrl);
+    }
+}
+
+static void _dmxKeyboardBellProc(DMXLocalInputInfoPtr dmxLocal, int percent)
+{
+    if (dmxLocal->kBell) dmxLocal->kBell(&dmxLocal->pDevice->public,
+                                         percent,
+                                         dmxLocal->kctrl.bell,
+                                         dmxLocal->kctrl.bell_pitch,
+                                         dmxLocal->kctrl.bell_duration);
+}
+
+/** Sound the bell on the device.  If the device send core events, then
+ * sound the bell on all of the devices that send core events. */
+void dmxKeyboardBellProc(int percent, DeviceIntPtr pDevice,
+                         pointer ctrl, int unknown)
+{
+    GETDMXLOCALFROMPDEVICE;
+    int i, j;
+
+    if (dmxLocal->sendsCore) {       /* Do for all core devices */
+        for (i = 0; i < dmxNumInputs; i++) {
+            DMXInputInfo *dmxInput = &dmxInputs[i];
+            if (dmxInput->detached) continue;
+            for (j = 0; j < dmxInput->numDevs; j++)
+                if (dmxInput->devs[j]->sendsCore)
+                    _dmxKeyboardBellProc(dmxInput->devs[j], percent);
+        }
+    } else {                    /* Do for this device only */
+        _dmxKeyboardBellProc(dmxLocal, percent);
+    }
+}
+
+static void dmxKeyboardFreeNames(XkbComponentNamesPtr names)
+{
+    if (names->keycodes) XFree(names->keycodes);
+    if (names->types)    XFree(names->types);
+    if (names->compat)   XFree(names->compat);
+    if (names->symbols)  XFree(names->symbols);
+    if (names->geometry) XFree(names->geometry);
+}
+
+
+static int dmxKeyboardOn(DeviceIntPtr pDevice, DMXLocalInitInfo *info)
+{
+    GETDMXINPUTFROMPDEVICE;
+    XkbRMLVOSet rmlvo;
+
+    rmlvo.rules = dmxConfigGetXkbRules();
+    rmlvo.model = dmxConfigGetXkbModel();
+    rmlvo.layout = dmxConfigGetXkbLayout();
+    rmlvo.variant = dmxConfigGetXkbVariant();
+    rmlvo.options = dmxConfigGetXkbOptions();
+
+    XkbSetRulesDflts(&rmlvo);
+    if (!info->force && (dmxInput->keycodes
+                         || dmxInput->symbols
+                         || dmxInput->geometry)) {
+        if (info->freenames) dmxKeyboardFreeNames(&info->names);
+        info->freenames      = 0;
+        info->names.keycodes = dmxInput->keycodes;
+        info->names.types    = NULL;
+        info->names.compat   = NULL;
+        info->names.symbols  = dmxInput->symbols;
+        info->names.geometry = dmxInput->geometry;
+
+        dmxLogInput(dmxInput, "XKEYBOARD: From command line: %s",
+                    info->names.keycodes);
+        if (info->names.symbols && *info->names.symbols)
+            dmxLogInputCont(dmxInput, " %s", info->names.symbols);
+        if (info->names.geometry && *info->names.geometry)
+            dmxLogInputCont(dmxInput, " %s", info->names.geometry);
+        dmxLogInputCont(dmxInput, "\n");
+    } else if (info->names.keycodes) {
+        dmxLogInput(dmxInput, "XKEYBOARD: From device: %s",
+                    info->names.keycodes);
+        if (info->names.symbols && *info->names.symbols)
+            dmxLogInputCont(dmxInput, " %s", info->names.symbols);
+        if (info->names.geometry && *info->names.geometry)
+            dmxLogInputCont(dmxInput, " %s", info->names.geometry);
+        dmxLogInputCont(dmxInput, "\n");
+    } else {
+        dmxLogInput(dmxInput, "XKEYBOARD: Defaults: %s %s %s %s %s\n",
+                    dmxConfigGetXkbRules(),
+                    dmxConfigGetXkbLayout(),
+                    dmxConfigGetXkbModel(),
+                    dmxConfigGetXkbVariant()
+                    ? dmxConfigGetXkbVariant() : "",
+                    dmxConfigGetXkbOptions()
+                    ? dmxConfigGetXkbOptions() : "");
+    }
+    InitKeyboardDeviceStruct(pDevice, &rmlvo,
+                                dmxKeyboardBellProc,
+                                dmxKeyboardKbdCtrlProc);
+
+    if (info->freenames) dmxKeyboardFreeNames(&info->names);
+
+    return Success;
+}
+
+    
+static int dmxDeviceOnOff(DeviceIntPtr pDevice, int what)
+{
+    GETDMXINPUTFROMPDEVICE;
+    int              fd;
+    DMXLocalInitInfo info;
+    int              i;
+    Atom             btn_labels[MAX_BUTTONS] = {0}; /* FIXME */
+    Atom             axis_labels[MAX_VALUATORS] = {0}; /* FIXME */
+
+    if (dmxInput->detached) return Success;
+
+    memset(&info, 0, sizeof(info));
+    switch (what) {
+    case DEVICE_INIT:
+        if (dmxLocal->init)
+            dmxLocal->init(pDev);
+        if (dmxLocal->get_info)
+            dmxLocal->get_info(pDev, &info);
+        if (info.keyboard) {    /* XKEYBOARD makes this a special case */
+            dmxKeyboardOn(pDevice, &info);
+            break;
+        }
+        if (info.keyClass) {
+            XkbRMLVOSet rmlvo;
+
+            rmlvo.rules = dmxConfigGetXkbRules();
+            rmlvo.model = dmxConfigGetXkbModel();
+            rmlvo.layout = dmxConfigGetXkbLayout();
+            rmlvo.variant = dmxConfigGetXkbVariant();
+            rmlvo.options = dmxConfigGetXkbOptions();
+
+            InitKeyboardDeviceStruct(pDevice,
+                                     &rmlvo,
+                                     dmxBell, dmxKbdCtrl);
+        }
+        if (info.buttonClass) {
+            InitButtonClassDeviceStruct(pDevice, info.numButtons,
+                                        btn_labels, info.map);
+        }
+        if (info.valuatorClass) {
+            if (info.numRelAxes && dmxLocal->sendsCore) {
+                InitValuatorClassDeviceStruct(pDevice, info.numRelAxes,
+                                              axis_labels,
+                                              GetMaximumEventsNum(),
+                                              Relative);
+                for (i = 0; i < info.numRelAxes; i++)
+                    InitValuatorAxisStruct(pDevice, i, axis_labels[i],
+                                           info.minval[i], info.maxval[i],
+                                           info.res[i],
+                                           info.minres[i], info.maxres[i],
+                                           Relative);
+            } else if (info.numRelAxes) {
+                InitValuatorClassDeviceStruct(pDevice, info.numRelAxes,
+                                              axis_labels,
+                                              dmxPointerGetMotionBufferSize(),
+                                              Relative);
+                for (i = 0; i < info.numRelAxes; i++)
+                    InitValuatorAxisStruct(pDevice, i, axis_labels[i],
+                                           info.minval[i],
+                                           info.maxval[i], info.res[i],
+                                           info.minres[i], info.maxres[i],
+                                           Relative);
+            } else if (info.numAbsAxes) {
+                InitValuatorClassDeviceStruct(pDevice, info.numAbsAxes,
+                                              axis_labels,
+                                              dmxPointerGetMotionBufferSize(),
+                                              Absolute);
+                for (i = 0; i < info.numAbsAxes; i++)
+                    InitValuatorAxisStruct(pDevice, i,
+                                           axis_labels[i],
+                                           info.minval[i], info.maxval[i],
+                                           info.res[i], info.minres[i],
+                                           info.maxres[i], Absolute);
+            }
+        }
+        if (info.focusClass)       InitFocusClassDeviceStruct(pDevice);
+        if (info.proximityClass)   InitProximityClassDeviceStruct(pDevice);
+        if (info.ptrFeedbackClass)
+            InitPtrFeedbackClassDeviceStruct(pDevice, dmxChangePointerControl);
+        if (info.intFeedbackClass || info.strFeedbackClass)
+            dmxLog(dmxWarning,
+                   "Integer and string feedback not supported for %s\n",
+                   pDevice->name);
+        if (!info.keyboard && (info.ledFeedbackClass || info.belFeedbackClass))
+            dmxLog(dmxWarning,
+                   "Led and bel feedback not supported for non-keyboard %s\n",
+                   pDevice->name);
+        break;
+    case DEVICE_ON:
+        if (!pDev->on) {
+            if (dmxLocal->on && (fd = dmxLocal->on(pDev)) >= 0)
+                dmxSigioRegister(dmxInput, fd);
+            pDev->on = TRUE;
+        }
+        break;
+    case DEVICE_OFF:
+    case DEVICE_CLOSE:
+            /* This can get called twice consecutively: once for a
+             * detached screen (DEVICE_OFF), and then again at server
+             * generation time (DEVICE_CLOSE). */
+        if (pDev->on) {
+            dmxSigioUnregister(dmxInput);
+            if (dmxLocal->off) dmxLocal->off(pDev);
+            pDev->on = FALSE;
+        }
+        break;
+    }
+    if (info.keySyms.map && info.freemap) {
+        XFree(info.keySyms.map);
+        info.keySyms.map = NULL;
+    }
+    if (info.xkb) XkbFreeKeyboard(info.xkb, 0, True);
+    return Success;
+}
+
+static void dmxProcessInputEvents(DMXInputInfo *dmxInput)
+{
+    int i;
+
+    mieqProcessInputEvents();
+#if 00 /*BP*/
+    miPointerUpdate();
+#endif
+    if (dmxInput->detached)
+        return;
+    for (i = 0; i < dmxInput->numDevs; i += dmxInput->devs[i]->binding)
+        if (dmxInput->devs[i]->process_input) {
+#if 11 /*BP*/
+            miPointerUpdateSprite(dmxInput->devs[i]->pDevice);
+#endif
+            dmxInput->devs[i]->process_input(dmxInput->devs[i]->private);
+        }
+
+#if 11 /*BP*/
+    mieqProcessInputEvents();
+#endif
+}
+
+static void dmxUpdateWindowInformation(DMXInputInfo *dmxInput,
+                                       DMXUpdateType type,
+                                       WindowPtr pWindow)
+{
+    int i;
+
+#ifdef PANORAMIX
+    if (!noPanoramiXExtension && pWindow && pWindow->parent != screenInfo.screens[0]->root)
+        return;
+#endif
+#if DMX_WINDOW_DEBUG
+    {
+        const char *name = "Unknown";
+        switch (type) {
+        case DMX_UPDATE_REALIZE:            name = "Realize";         break;
+        case DMX_UPDATE_UNREALIZE:          name = "Unrealize";       break;
+        case DMX_UPDATE_RESTACK:            name = "Restack";         break;
+        case DMX_UPDATE_COPY:               name = "Copy";            break;
+        case DMX_UPDATE_RESIZE:             name = "Resize";          break;
+        case DMX_UPDATE_REPARENT:           name = "Repaint";         break;
+        }
+        dmxLog(dmxDebug, "Window %p changed: %s\n", pWindow, name);
+    }
+#endif
+
+    if (dmxInput->detached)
+        return;
+    for (i = 0; i < dmxInput->numDevs; i += dmxInput->devs[i]->binding)
+        if (dmxInput->devs[i]->update_info)
+            dmxInput->devs[i]->update_info(dmxInput->devs[i]->private,
+                                           type, pWindow);
+}
+
+static void dmxCollectAll(DMXInputInfo *dmxInput)
+{
+    int i;
+
+    if (dmxInput->detached)
+        return;
+    for (i = 0; i < dmxInput->numDevs; i += dmxInput->devs[i]->binding)
+        if (dmxInput->devs[i]->collect_events)
+            dmxInput->devs[i]->collect_events(&dmxInput->devs[i]->pDevice->public,
+                                              dmxMotion,
+                                              dmxEnqueue,
+                                              dmxCheckSpecialKeys, DMX_BLOCK);
+}
+
+static void dmxBlockHandler(pointer blockData, OSTimePtr pTimeout,
+                            pointer pReadMask)
+{
+    DMXInputInfo    *dmxInput = &dmxInputs[(uintptr_t)blockData];
+    static unsigned long generation = 0;
+    
+    if (generation != serverGeneration) {
+        generation = serverGeneration;
+        dmxCollectAll(dmxInput);
+    }
+}
+
+static void dmxSwitchReturn(pointer p)
+{
+    DMXInputInfo *dmxInput = p;
+    int          i;
+    
+    dmxLog(dmxInfo, "Returning from VT %d\n", dmxInput->vt_switched);
+
+    if (!dmxInput->vt_switched)
+        dmxLog(dmxFatal, "dmxSwitchReturn called, but not switched\n");
+    dmxSigioEnableInput();
+    for (i = 0; i < dmxInput->numDevs; i++)
+        if (dmxInput->devs[i]->vt_post_switch)
+            dmxInput->devs[i]->vt_post_switch(dmxInput->devs[i]->private);
+    dmxInput->vt_switched = 0;
+}
+
+static void dmxWakeupHandler(pointer blockData, int result, pointer pReadMask)
+{
+    DMXInputInfo *dmxInput = &dmxInputs[(uintptr_t)blockData];
+    int          i;
+
+    if (dmxInput->vt_switch_pending) {
+        dmxLog(dmxInfo, "Switching to VT %d\n", dmxInput->vt_switch_pending);
+        for (i = 0; i < dmxInput->numDevs; i++)
+            if (dmxInput->devs[i]->vt_pre_switch)
+                dmxInput->devs[i]->vt_pre_switch(dmxInput->devs[i]->private);
+        dmxInput->vt_switched       = dmxInput->vt_switch_pending;
+        dmxInput->vt_switch_pending = 0;
+        for (i = 0; i < dmxInput->numDevs; i++) {
+            if (dmxInput->devs[i]->vt_switch) {
+                dmxSigioDisableInput();
+                if (!dmxInput->devs[i]->vt_switch(dmxInput->devs[i]->private,
+                                                  dmxInput->vt_switched,
+                                                  dmxSwitchReturn,
+                                                  dmxInput))
+                    dmxSwitchReturn(dmxInput);
+                break;          /* Only call one vt_switch routine */
+            }
+        }
+    }
+    dmxCollectAll(dmxInput);
+}
+
+static char *dmxMakeUniqueDeviceName(DMXLocalInputInfoPtr dmxLocal)
+{
+    static int           k = 0;
+    static int           m = 0;
+    static int           o = 0;
+    static unsigned long dmxGeneration = 0;
+#define LEN  32
+    char *               buf = malloc(LEN);
+
+    if (dmxGeneration != serverGeneration) {
+        k = m = o     = 0;
+        dmxGeneration = serverGeneration;
+    }
+
+    switch (dmxLocal->type) {
+    case DMX_LOCAL_KEYBOARD: XmuSnprintf(buf, LEN, "Keyboard%d", k++); break;
+    case DMX_LOCAL_MOUSE:    XmuSnprintf(buf, LEN, "Mouse%d", m++);    break;
+    default:                 XmuSnprintf(buf, LEN, "Other%d", o++);    break;
+    }
+
+    return buf;
+}
+
+static DeviceIntPtr dmxAddDevice(DMXLocalInputInfoPtr dmxLocal)
+{
+    DeviceIntPtr pDevice;
+    Atom         atom;
+    const char   *name = NULL;
+    char         *devname;
+    DMXInputInfo *dmxInput;
+
+    if (!dmxLocal)
+        return NULL;
+    dmxInput = &dmxInputs[dmxLocal->inputIdx];
+
+    if (dmxLocal->sendsCore) {
+        if (dmxLocal->type == DMX_LOCAL_KEYBOARD && !dmxLocalCoreKeyboard) {
+            dmxLocal->isCore     = 1;
+            dmxLocalCoreKeyboard = dmxLocal;
+            name                 = "keyboard";
+        }
+        if (dmxLocal->type == DMX_LOCAL_MOUSE && !dmxLocalCorePointer) {
+            dmxLocal->isCore     = 1;
+            dmxLocalCorePointer  = dmxLocal;
+            name                 = "pointer";
+        }
+    }
+
+    if (!name) {
+        name            = "extension";
+    }
+
+    if (!name)
+        dmxLog(dmxFatal, "Cannot add device %s\n", dmxLocal->name);
+
+    pDevice                       = AddInputDevice(serverClient, dmxDeviceOnOff, TRUE);
+    if (!pDevice) {
+        dmxLog(dmxError, "Too many devices -- cannot add device %s\n",
+               dmxLocal->name);
+        return NULL;
+    }
+    pDevice->public.devicePrivate = dmxLocal;
+    dmxLocal->pDevice             = pDevice;
+
+    devname       = dmxMakeUniqueDeviceName(dmxLocal);
+    atom          = MakeAtom((char *)devname, strlen(devname), TRUE);
+    pDevice->type = atom;
+    pDevice->name = devname;
+
+    if (dmxLocal->isCore && dmxLocal->type == DMX_LOCAL_MOUSE) {
+#if 00 /*BP*/
+        miRegisterPointerDevice(screenInfo.screens[0], pDevice);
+#else
+        /* Nothing? dmxDeviceOnOff() should get called to init, right? */
+#endif
+    }
+
+    if (dmxLocal->create_private)
+        dmxLocal->private = dmxLocal->create_private(pDevice);
+
+    dmxLogInput(dmxInput, "Added %s as %s device called %s%s\n",
+                dmxLocal->name, name, devname,
+                dmxLocal->isCore
+                ? " [core]"
+                : (dmxLocal->sendsCore
+                   ? " [sends core events]"
+                   : ""));
+
+    return pDevice;
+}
+
+static DMXLocalInputInfoPtr dmxLookupLocal(const char *name)
+{
+    DMXLocalInputInfoPtr pt;
+    
+    for (pt = &DMXLocalDevices[0]; pt->name; ++pt)
+        if (!strcmp(pt->name, name)) return pt; /* search for device name */
+    return NULL;
+}
+
+/** Copy the local input information from \a s into a new \a devs slot
+ * in \a dmxInput. */
+DMXLocalInputInfoPtr dmxInputCopyLocal(DMXInputInfo *dmxInput,
+                                       DMXLocalInputInfoPtr s)
+{
+    DMXLocalInputInfoPtr dmxLocal = malloc(sizeof(*dmxLocal));
+    
+    if (!dmxLocal)
+        dmxLog(dmxFatal, "DMXLocalInputInfoPtr: out of memory\n");
+
+    memcpy(dmxLocal, s, sizeof(*dmxLocal));
+    dmxLocal->inputIdx       = dmxInput->inputIdx;
+    dmxLocal->sendsCore      = dmxInput->core;
+    dmxLocal->savedSendsCore = dmxInput->core;
+    dmxLocal->deviceId       = -1;
+
+    ++dmxInput->numDevs;
+    dmxInput->devs = realloc(dmxInput->devs,
+                              dmxInput->numDevs * sizeof(*dmxInput->devs));
+    dmxInput->devs[dmxInput->numDevs-1] = dmxLocal;
+    
+    return dmxLocal;
+}
+
+static void dmxPopulateLocal(DMXInputInfo *dmxInput, dmxArg a)
+{
+    int                  i;
+    int                  help = 0;
+    DMXLocalInputInfoRec *pt;
+
+    for (i = 1; i < dmxArgC(a); i++) {
+        const char *name = dmxArgV(a, i);
+        if ((pt = dmxLookupLocal(name))) {
+            dmxInputCopyLocal(dmxInput, pt);
+        } else {
+            if (strlen(name))
+                dmxLog(dmxWarning,
+                       "Could not find a driver called %s\n", name);
+            ++help;
+        }
+    }
+    if (help) {
+        dmxLog(dmxInfo, "Available local device drivers:\n");
+        for (pt = &DMXLocalDevices[0]; pt->name; ++pt) {
+            const char *type;
+            switch (pt->type) {
+            case DMX_LOCAL_KEYBOARD: type = "keyboard"; break;
+            case DMX_LOCAL_MOUSE:    type = "pointer";  break;
+            default:                 type = "unknown";  break;
+            }
+            dmxLog(dmxInfo, "   %s (%s)\n", pt->name, type);
+        }
+        dmxLog(dmxFatal, "Must have valid local device driver\n");
+    }
+}
+
+int dmxInputExtensionErrorHandler(Display *dsp, _Xconst char *name, _Xconst char *reason)
+{
+    return 0;
+}
+
+static void dmxInputScanForExtensions(DMXInputInfo *dmxInput, int doXI)
+{
+    XExtensionVersion    *ext;
+    XDeviceInfo          *devices;
+    Display              *display;
+    int                  num;
+    int                  i, j;
+    XextErrorHandler     handler;
+
+    if (!(display = XOpenDisplay(dmxInput->name))) return;
+    
+    /* Print out information about the XInput Extension. */
+    handler = XSetExtensionErrorHandler(dmxInputExtensionErrorHandler);
+    ext     = XGetExtensionVersion(display, INAME);
+    XSetExtensionErrorHandler(handler);
+    
+    if (!ext || ext == (XExtensionVersion *)NoSuchExtension) {
+        dmxLogInput(dmxInput, "%s is not available\n", INAME);
+    } else {
+        dmxLogInput(dmxInput, "Locating devices on %s (%s version %d.%d)\n",
+                    dmxInput->name, INAME,
+                    ext->major_version, ext->minor_version);
+        devices = XListInputDevices(display, &num);
+
+        XFree(ext);
+        ext = NULL;
+
+                                /* Print a list of all devices */
+        for (i = 0; i < num; i++) {
+            const char *use = "Unknown";
+            switch (devices[i].use) {
+            case IsXPointer:           use = "XPointer";         break;
+            case IsXKeyboard:          use = "XKeyboard";        break;
+            case IsXExtensionDevice:   use = "XExtensionDevice"; break;
+            case IsXExtensionPointer:  use = "XExtensionPointer"; break;
+            case IsXExtensionKeyboard: use = "XExtensionKeyboard"; break;
+            }
+            dmxLogInput(dmxInput, "  %2d %-10.10s %-16.16s\n",
+                        devices[i].id,
+                        devices[i].name ? devices[i].name : "",
+                        use);
+        }
+
+                                /* Search for extensions */
+        for (i = 0; i < num; i++) {
+            switch (devices[i].use) {
+            case IsXKeyboard:
+                for (j = 0; j < dmxInput->numDevs; j++) {
+                    DMXLocalInputInfoPtr dmxL = dmxInput->devs[j];
+                    if (dmxL->type == DMX_LOCAL_KEYBOARD
+                        && dmxL->deviceId < 0) {
+                        dmxL->deviceId   = devices[i].id;
+                        dmxL->deviceName = (devices[i].name
+                                            ? strdup(devices[i].name)
+                                            : NULL);
+                    }
+                }
+                break;
+            case IsXPointer:
+                for (j = 0; j < dmxInput->numDevs; j++) {
+                    DMXLocalInputInfoPtr dmxL = dmxInput->devs[j];
+                    if (dmxL->type == DMX_LOCAL_MOUSE && dmxL->deviceId < 0) {
+                        dmxL->deviceId   = devices[i].id;
+                        dmxL->deviceName = (devices[i].name
+                                            ? xstrdup(devices[i].name)
+                                            : NULL);
+                    }
+                }
+                break;
+            }
+        }
+        XFreeDeviceList(devices);
+    }
+    XCloseDisplay(display);
+}
+
+/** Re-initialize all the devices described in \a dmxInput.  Called from
+    #dmxAdjustCursorBoundaries before the cursor is redisplayed. */
+void dmxInputReInit(DMXInputInfo *dmxInput)
+{
+    int i;
+
+    for (i = 0; i < dmxInput->numDevs; i++) {
+        DMXLocalInputInfoPtr dmxLocal = dmxInput->devs[i];
+        if (dmxLocal->reinit)
+            dmxLocal->reinit(&dmxLocal->pDevice->public);
+    }
+}
+
+/** Re-initialize all the devices described in \a dmxInput.  Called from
+    #dmxAdjustCursorBoundaries after the cursor is redisplayed. */
+void dmxInputLateReInit(DMXInputInfo *dmxInput)
+{
+    int i;
+
+    for (i = 0; i < dmxInput->numDevs; i++) {
+        DMXLocalInputInfoPtr dmxLocal = dmxInput->devs[i];
+        if (dmxLocal->latereinit)
+            dmxLocal->latereinit(&dmxLocal->pDevice->public);
+    }
+}
+
+/** Initialize all of the devices described in \a dmxInput. */
+void dmxInputInit(DMXInputInfo *dmxInput)
+{
+    DeviceIntPtr         pPointer = NULL, pKeyboard = NULL;
+    dmxArg               a;
+    const char           *name;
+    int                  i;
+    int                  doXI               = 1; /* Include by default */
+    int                  forceConsole       = 0;
+    int                  doWindows          = 1; /* On by default */
+    int                  hasXkb             = 0;
+
+    a = dmxArgParse(dmxInput->name);
+
+    for (i = 1; i < dmxArgC(a); i++) {
+        switch (hasXkb) {
+        case 1:
+            dmxInput->keycodes = xstrdup(dmxArgV(a, i));
+            ++hasXkb;
+            break;
+        case 2:
+            dmxInput->symbols  = xstrdup(dmxArgV(a, i));
+            ++hasXkb;
+            break;
+        case 3:
+            dmxInput->geometry = xstrdup(dmxArgV(a, i));
+            hasXkb = 0;
+            break;
+        case 0:
+            if      (!strcmp(dmxArgV(a, i), "noxi"))      doXI         = 0;
+            else if (!strcmp(dmxArgV(a, i), "xi"))        doXI         = 1;
+            else if (!strcmp(dmxArgV(a, i), "console"))   forceConsole = 1;
+            else if (!strcmp(dmxArgV(a, i), "noconsole")) forceConsole = 0;
+            else if (!strcmp(dmxArgV(a, i), "windows"))   doWindows    = 1;
+            else if (!strcmp(dmxArgV(a, i), "nowindows")) doWindows    = 0;
+            else if (!strcmp(dmxArgV(a, i), "xkb"))       hasXkb       = 1;
+            else {
+                dmxLog(dmxFatal,
+                       "Unknown input argument: %s\n", dmxArgV(a, i));
+            }
+        }
+    }
+
+    name = dmxArgV(a, 0);
+
+    if (!strcmp(name, "local")) {
+        dmxPopulateLocal(dmxInput, a);
+    } else if (!strcmp(name, "dummy")) {
+        dmxInputCopyLocal(dmxInput, &DMXDummyMou);
+        dmxInputCopyLocal(dmxInput, &DMXDummyKbd);
+        dmxLogInput(dmxInput, "Using dummy input\n");
+    } else {
+        int found;
+
+        for (found = 0, i = 0; i < dmxNumScreens; i++) {
+            if (dmxPropertySameDisplay(&dmxScreens[i], name)) {
+                if (dmxScreens[i].shared)
+                    dmxLog(dmxFatal,
+                           "Cannot take input from shared backend (%s)\n",
+                           name);
+                if (!dmxInput->core) {
+                    dmxLog(dmxWarning,
+                           "Cannot use core devices on a backend (%s)"
+                           " as XInput devices\n", name);
+                } else {
+                    char *pt;
+                    for (pt = (char *)dmxInput->name; pt && *pt; pt++)
+                        if (*pt == ',') *pt = '\0';
+                    dmxInputCopyLocal(dmxInput, &DMXBackendMou);
+                    dmxInputCopyLocal(dmxInput, &DMXBackendKbd);
+                    dmxInput->scrnIdx = i;
+                    dmxLogInput(dmxInput,
+                                "Using backend input from %s\n", name);
+                }
+                ++found;
+                break;
+            }
+        }
+        if (!found || forceConsole) {
+            char *pt;
+            if (found) dmxInput->console = TRUE;
+            for (pt = (char *)dmxInput->name; pt && *pt; pt++)
+                if (*pt == ',') *pt = '\0';
+            dmxInputCopyLocal(dmxInput, &DMXConsoleMou);
+            dmxInputCopyLocal(dmxInput, &DMXConsoleKbd);
+            if (doWindows) {
+                dmxInput->windows          = TRUE;
+                dmxInput->updateWindowInfo = dmxUpdateWindowInformation;
+            }
+            dmxLogInput(dmxInput,
+                        "Using console input from %s (%s windows)\n",
+                        name, doWindows ? "with" : "without");
+        }
+    }
+
+    dmxArgFree(a);
+
+                                /* Locate extensions we may be interested in */
+    dmxInputScanForExtensions(dmxInput, doXI);
+    
+    for (i = 0; i < dmxInput->numDevs; i++) {
+        DMXLocalInputInfoPtr dmxLocal = dmxInput->devs[i];
+        dmxLocal->pDevice = dmxAddDevice(dmxLocal);
+        if (dmxLocal->isCore) {
+            if (dmxLocal->type == DMX_LOCAL_MOUSE)
+                pPointer  = dmxLocal->pDevice;
+            if (dmxLocal->type == DMX_LOCAL_KEYBOARD)
+                pKeyboard = dmxLocal->pDevice;
+        }
+    }
+    
+    dmxInput->processInputEvents    = dmxProcessInputEvents;
+    dmxInput->detached              = False;
+    
+    RegisterBlockAndWakeupHandlers(dmxBlockHandler, dmxWakeupHandler,
+                                   (void *)(uintptr_t)dmxInput->inputIdx);
+}
+
+static void dmxInputFreeLocal(DMXLocalInputInfoRec *local)
+{
+    if (!local) return;
+    if (local->isCore && local->type == DMX_LOCAL_MOUSE)
+        dmxLocalCorePointer  = NULL;
+    if (local->isCore && local->type == DMX_LOCAL_KEYBOARD)
+        dmxLocalCoreKeyboard = NULL;
+    if (local->destroy_private) local->destroy_private(local->private);
+    free(local->history);
+    free(local->valuators);
+    free(local->deviceName);
+    local->private    = NULL;
+    local->history    = NULL;
+    local->deviceName = NULL;
+    free(local);
+}
+
+/** Free all of the memory associated with \a dmxInput */
+void dmxInputFree(DMXInputInfo *dmxInput)
+{
+    int i;
+    
+    if (!dmxInput) return;
+
+    free(dmxInput->keycodes);
+    free(dmxInput->symbols);
+    free(dmxInput->geometry);
+
+    for (i = 0; i < dmxInput->numDevs; i++) {
+        dmxInputFreeLocal(dmxInput->devs[i]);
+        dmxInput->devs[i] = NULL;
+    }
+    free(dmxInput->devs);
+    dmxInput->devs    = NULL;
+    dmxInput->numDevs = 0;
+    if (dmxInput->freename) free(dmxInput->name);
+    dmxInput->name    = NULL;
+}
+
+/** Log information about all of the known devices using #dmxLog(). */
+void dmxInputLogDevices(void)
+{
+    int i, j;
+
+    dmxLog(dmxInfo, "%d devices:\n", dmxGetInputCount());
+    dmxLog(dmxInfo, "  Id  Name                 Classes\n");
+    for (j = 0; j < dmxNumInputs; j++) {
+        DMXInputInfo *dmxInput = &dmxInputs[j];
+        const char   *pt = strchr(dmxInput->name, ',');
+        int          len = (pt
+                            ? (size_t)(pt-dmxInput->name)
+                            : strlen(dmxInput->name));
+
+        for (i = 0; i < dmxInput->numDevs; i++) {
+            DeviceIntPtr pDevice = dmxInput->devs[i]->pDevice;
+            if (pDevice) {
+                dmxLog(dmxInfo, "  %2d%c %-20.20s",
+                       pDevice->id,
+                       dmxInput->detached ? 'D' : ' ',
+                       pDevice->name);
+                if (pDevice->key)        dmxLogCont(dmxInfo, " key");
+                if (pDevice->valuator)   dmxLogCont(dmxInfo, " val");
+                if (pDevice->button)     dmxLogCont(dmxInfo, " btn");
+                if (pDevice->focus)      dmxLogCont(dmxInfo, " foc");
+                if (pDevice->kbdfeed)    dmxLogCont(dmxInfo, " fb/kbd");
+                if (pDevice->ptrfeed)    dmxLogCont(dmxInfo, " fb/ptr");
+                if (pDevice->intfeed)    dmxLogCont(dmxInfo, " fb/int");
+                if (pDevice->stringfeed) dmxLogCont(dmxInfo, " fb/str");
+                if (pDevice->bell)       dmxLogCont(dmxInfo, " fb/bel");
+                if (pDevice->leds)       dmxLogCont(dmxInfo, " fb/led");
+                if (!pDevice->key && !pDevice->valuator && !pDevice->button
+                    && !pDevice->focus && !pDevice->kbdfeed
+                    && !pDevice->ptrfeed && !pDevice->intfeed
+                    && !pDevice->stringfeed && !pDevice->bell
+                    && !pDevice->leds)   dmxLogCont(dmxInfo, " (none)");
+                                                                 
+                dmxLogCont(dmxInfo, "\t[i%d/%*.*s",
+                           dmxInput->inputIdx, len, len, dmxInput->name);
+                if (dmxInput->devs[i]->deviceId >= 0)
+                    dmxLogCont(dmxInfo, "/id%d", dmxInput->devs[i]->deviceId);
+                if (dmxInput->devs[i]->deviceName)
+                    dmxLogCont(dmxInfo, "=%s", dmxInput->devs[i]->deviceName);
+                dmxLogCont(dmxInfo, "] %s\n",
+                           dmxInput->devs[i]->isCore
+                           ? "core"
+                           : (dmxInput->devs[i]->sendsCore
+                              ? "extension (sends core events)"
+                              : "extension"));
+            }
+        }
+    }
+}
+
+/** Detach an input */
+int dmxInputDetach(DMXInputInfo *dmxInput)
+{
+    int i;
+
+    if (dmxInput->detached) return BadAccess;
+    
+    for (i = 0; i < dmxInput->numDevs; i++) {
+        DMXLocalInputInfoPtr dmxLocal = dmxInput->devs[i];
+        dmxLogInput(dmxInput, "Detaching device id %d: %s%s\n",
+                    dmxLocal->pDevice->id,
+                    dmxLocal->pDevice->name,
+                    dmxLocal->isCore
+                    ? " [core]"
+                    : (dmxLocal->sendsCore
+                       ? " [sends core events]"
+                       : ""));
+        DisableDevice(dmxLocal->pDevice, TRUE);
+    }
+    dmxInput->detached = True;
+    dmxInputLogDevices();
+    return 0;
+}
+
+/** Search for input associated with \a dmxScreen, and detach. */
+void dmxInputDetachAll(DMXScreenInfo *dmxScreen)
+{
+    int i;
+
+    for (i = 0; i < dmxNumInputs; i++) {
+        DMXInputInfo *dmxInput = &dmxInputs[i];
+        if (dmxInput->scrnIdx == dmxScreen->index) dmxInputDetach(dmxInput);
+    }
+}
+
+/** Search for input associated with \a deviceId, and detach. */
+int dmxInputDetachId(int id)
+{
+    DMXInputInfo *dmxInput = dmxInputLocateId(id);
+
+    if (!dmxInput) return BadValue;
+    
+    return dmxInputDetach(dmxInput);
+}
+
+DMXInputInfo *dmxInputLocateId(int id)
+{
+    int i, j;
+    
+    for (i = 0; i < dmxNumInputs; i++) {
+        DMXInputInfo *dmxInput = &dmxInputs[i];
+        for (j = 0; j < dmxInput->numDevs; j++) {
+            DMXLocalInputInfoPtr dmxLocal = dmxInput->devs[j];
+            if (dmxLocal->pDevice->id == id) return dmxInput;
+        }
+    }
+    return NULL;
+}
+
+static int dmxInputAttachNew(DMXInputInfo *dmxInput, int *id)
+{
+    dmxInputInit(dmxInput);
+    InitAndStartDevices();
+    if (id && dmxInput->devs) *id = dmxInput->devs[0]->pDevice->id;
+    dmxInputLogDevices();
+    return 0;
+}
+
+static int dmxInputAttachOld(DMXInputInfo *dmxInput, int *id)
+{
+    int i;
+    
+    dmxInput->detached = False;
+    for (i = 0; i < dmxInput->numDevs; i++) {
+        DMXLocalInputInfoPtr dmxLocal = dmxInput->devs[i];
+        if (id) *id = dmxLocal->pDevice->id;
+        dmxLogInput(dmxInput,
+                    "Attaching device id %d: %s%s\n",
+                    dmxLocal->pDevice->id,
+                    dmxLocal->pDevice->name,
+                    dmxLocal->isCore
+                    ? " [core]"
+                    : (dmxLocal->sendsCore
+                       ? " [sends core events]"
+                       : ""));
+        EnableDevice(dmxLocal->pDevice, TRUE);
+    }
+    dmxInputLogDevices();
+    return 0;
+}
+
+int dmxInputAttachConsole(const char *name, int isCore, int *id)
+{
+    DMXInputInfo  *dmxInput;
+    int           i;
+
+    for (i = 0; i < dmxNumInputs; i++) {
+        dmxInput = &dmxInputs[i];
+        if (dmxInput->scrnIdx == -1
+            && dmxInput->detached
+            && !strcmp(dmxInput->name, name)) {
+                                /* Found match */
+            dmxLogInput(dmxInput, "Reattaching detached console input\n");
+            return dmxInputAttachOld(dmxInput, id);
+        }
+    }
+
+                                /* No match found */
+    dmxInput = dmxConfigAddInput(xstrdup(name), isCore);
+    dmxInput->freename = TRUE;
+    dmxLogInput(dmxInput, "Attaching new console input\n");
+    return dmxInputAttachNew(dmxInput, id);
+}
+
+int dmxInputAttachBackend(int physicalScreen, int isCore, int *id)
+{
+    DMXInputInfo  *dmxInput;
+    DMXScreenInfo *dmxScreen;
+    int           i;
+    
+    if (physicalScreen < 0 || physicalScreen >= dmxNumScreens) return BadValue;
+    for (i = 0; i < dmxNumInputs; i++) {
+        dmxInput = &dmxInputs[i];
+        if (dmxInput->scrnIdx != -1 && dmxInput->scrnIdx == physicalScreen) {
+                                /* Found match */
+            if (!dmxInput->detached) return BadAccess; /* Already attached */
+            dmxScreen = &dmxScreens[physicalScreen];
+            if (!dmxScreen->beDisplay) return BadAccess; /* Screen detached */
+            dmxLogInput(dmxInput, "Reattaching detached backend input\n");
+            return dmxInputAttachOld(dmxInput, id);
+        }
+    }
+                                /* No match found */
+    dmxScreen = &dmxScreens[physicalScreen];
+    if (!dmxScreen->beDisplay) return BadAccess; /* Screen detached */
+    dmxInput = dmxConfigAddInput(dmxScreen->name, isCore);
+    dmxLogInput(dmxInput, "Attaching new backend input\n");
+    return dmxInputAttachNew(dmxInput, id);
+}