libX11 xserver fontconfig mesa pixman xkbcomp xkeyboard-config git update

23 Mar 2012

1 files changed, 460 insertions, 448 deletions

diff --git a/xorg-server/miext/rootless/rootlessCommon.c b/xorg-server/miext/rootless/rootlessCommon.c
index 3ea3e5970..d8f43bd1b 100644
--- a/xorg-server/miext/rootless/rootlessCommon.c
+++ b/xorg-server/miext/rootless/rootlessCommon.c
@@ -1,448 +1,460 @@
-/*

- * Common rootless definitions and code

- */

-/*

- * Copyright (c) 2001 Greg Parker. All Rights Reserved.

- * Copyright (c) 2002-2003 Torrey T. Lyons. All Rights Reserved.

- * Copyright (c) 2002 Apple Computer, Inc. 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

- * 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 shall be included in

- * all copies or substantial portions of the Software.

- *

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

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

- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

- * THE ABOVE LISTED COPYRIGHT HOLDER(S) 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.

- *

- * Except as contained in this notice, the name(s) of the above copyright

- * holders shall not be used in advertising or otherwise to promote the sale,

- * use or other dealings in this Software without prior written authorization.

- */

-

-#ifdef HAVE_DIX_CONFIG_H

-#include <dix-config.h>

-#endif

-

-#include <stddef.h> /* For NULL */

-#include <limits.h> /* For CHAR_BIT */

-

-#include "rootlessCommon.h"

-#include "colormapst.h"

-

-unsigned int rootless_CopyBytes_threshold = 0;

-unsigned int rootless_CopyWindow_threshold = 0;

-int rootlessGlobalOffsetX = 0;

-int rootlessGlobalOffsetY = 0;

-

-RegionRec rootlessHugeRoot = {{-32767, -32767, 32767, 32767}, NULL};

-

-/* Following macro from miregion.c */

-

-/*  true iff two Boxes overlap */

-#define EXTENTCHECK(r1,r2) \

-      (!( ((r1)->x2 <= (r2)->x1)  || \

-          ((r1)->x1 >= (r2)->x2)  || \

-          ((r1)->y2 <= (r2)->y1)  || \

-          ((r1)->y1 >= (r2)->y2) ) )

-

-

-/*

- * TopLevelParent

- *  Returns the top-level parent of pWindow.

- *  The root is the top-level parent of itself, even though the root is

- *  not otherwise considered to be a top-level window.

- */

-WindowPtr

-TopLevelParent(WindowPtr pWindow)

-{

-    WindowPtr top;

-

-    if (IsRoot(pWindow))

-        return pWindow;

-

-    top = pWindow;

-    while (top && ! IsTopLevel(top))

-        top = top->parent;

-

-    return top;

-}

-

-

-/*

- * IsFramedWindow

- *  Returns TRUE if this window is visible inside a frame

- *  (e.g. it is visible and has a top-level or root parent)

- */

-Bool

-IsFramedWindow(WindowPtr pWin)

-{

-    WindowPtr top;

-

-    if (!dixPrivateKeyRegistered(&rootlessWindowPrivateKeyRec))

-        return FALSE;

-

-    if (!pWin->realized)

-        return FALSE;

-    top = TopLevelParent(pWin);

-

-    return (top && WINREC(top));

-}

-

-Bool

-RootlessResolveColormap (ScreenPtr pScreen, int first_color,

-                         int n_colors, uint32_t *colors)

-{

-  int last, i;

-  ColormapPtr map;

-

-  map = RootlessGetColormap (pScreen);

-  if (map == NULL || map->class != PseudoColor) return FALSE;

-

-  last = min (map->pVisual->ColormapEntries, first_color + n_colors);

-  for (i = max (0, first_color); i < last; i++) {

-    Entry *ent = map->red + i;

-    uint16_t red, green, blue;

-

-      if (!ent->refcnt)	continue;

-      if (ent->fShared) {

-	red = ent->co.shco.red->color;

-	green = ent->co.shco.green->color;

-	blue = ent->co.shco.blue->color;

-      } else {

-	red = ent->co.local.red;

-	green = ent->co.local.green;

-	blue = ent->co.local.blue;

-      }

-

-      colors[i - first_color] = (0xFF000000UL

-				 | ((uint32_t) red & 0xff00) << 8

-				 | (green & 0xff00)

-				 | (blue >> 8));

-    }

-

-  return TRUE;

-}

-

-

-/*

- * RootlessStartDrawing

- *  Prepare a window for direct access to its backing buffer.

- *  Each top-level parent has a Pixmap representing its backing buffer,

- *  which all of its children inherit.

- */

-void RootlessStartDrawing(WindowPtr pWindow)

-{

-    ScreenPtr pScreen = pWindow->drawable.pScreen;

-    WindowPtr top = TopLevelParent(pWindow);

-    RootlessWindowRec *winRec;

-    PixmapPtr curPixmap;

-

-    if (top == NULL)

-        return;

-    winRec = WINREC(top);

-    if (winRec == NULL)

-        return;

-

-    // Make sure the window's top-level parent is prepared for drawing.

-    if (!winRec->is_drawing) {

-        int bw = wBorderWidth(top);

-

-        SCREENREC(pScreen)->imp->StartDrawing(winRec->wid, &winRec->pixelData,

-                                              &winRec->bytesPerRow);

-

-        winRec->pixmap =

-            GetScratchPixmapHeader(pScreen, winRec->width, winRec->height,

-                                   top->drawable.depth,

-                                   top->drawable.bitsPerPixel,

-                                   winRec->bytesPerRow,

-                                   winRec->pixelData);

-        SetPixmapBaseToScreen(winRec->pixmap,

-                              top->drawable.x - bw, top->drawable.y - bw);

-

-        winRec->is_drawing = TRUE;

-    }

-

-    curPixmap = pScreen->GetWindowPixmap(pWindow);

-    if (curPixmap == winRec->pixmap)

-    {

-        RL_DEBUG_MSG("Window %p already has winRec->pixmap %p; not pushing\n", pWindow, winRec->pixmap);

-    }

-    else

-    {

-        PixmapPtr oldPixmap = dixLookupPrivate(&pWindow->devPrivates, rootlessWindowOldPixmapPrivateKey);

-        if (oldPixmap != NULL)

-        {

-            if (oldPixmap == curPixmap)

-                RL_DEBUG_MSG("Window %p's curPixmap %p is the same as its oldPixmap; strange\n", pWindow, curPixmap);

-            else

-                RL_DEBUG_MSG("Window %p's existing oldPixmap %p being lost!\n", pWindow, oldPixmap);

-        }

-	dixSetPrivate(&pWindow->devPrivates, rootlessWindowOldPixmapPrivateKey, curPixmap);

-        pScreen->SetWindowPixmap(pWindow, winRec->pixmap);

-    }

-}

-

-

-/*

- * RootlessStopDrawing

- *  Stop drawing to a window's backing buffer. If flush is true,

- *  damaged regions are flushed to the screen.

- */

-static int RestorePreDrawingPixmapVisitor(WindowPtr pWindow, pointer data)

-{

-    RootlessWindowRec *winRec = (RootlessWindowRec*)data;

-    ScreenPtr pScreen = pWindow->drawable.pScreen;

-    PixmapPtr exPixmap = pScreen->GetWindowPixmap(pWindow);

-    PixmapPtr oldPixmap = dixLookupPrivate(&pWindow->devPrivates, rootlessWindowOldPixmapPrivateKey);

-    if (oldPixmap == NULL)

-    {

-        if (exPixmap == winRec->pixmap)

-            RL_DEBUG_MSG("Window %p appears to be in drawing mode (ex-pixmap %p equals winRec->pixmap, which is being freed) but has no oldPixmap!\n", pWindow, exPixmap);

-    }

-    else

-    {

-        if (exPixmap != winRec->pixmap)

-            RL_DEBUG_MSG("Window %p appears to be in drawing mode (oldPixmap %p) but ex-pixmap %p not winRec->pixmap %p!\n", pWindow, oldPixmap, exPixmap, winRec->pixmap);

-        if (oldPixmap == winRec->pixmap)

-            RL_DEBUG_MSG("Window %p's oldPixmap %p is winRec->pixmap, which has just been freed!\n", pWindow, oldPixmap);

-        pScreen->SetWindowPixmap(pWindow, oldPixmap);

-        dixSetPrivate(&pWindow->devPrivates, rootlessWindowOldPixmapPrivateKey, NULL);

-    }

-    return WT_WALKCHILDREN;

-}

-

-void RootlessStopDrawing(WindowPtr pWindow, Bool flush)

-{

-    ScreenPtr pScreen = pWindow->drawable.pScreen;

-    WindowPtr top = TopLevelParent(pWindow);

-    RootlessWindowRec *winRec;

-

-    if (top == NULL)

-        return;

-    winRec = WINREC(top);

-    if (winRec == NULL)

-        return;

-

-    if (winRec->is_drawing) {

-        SCREENREC(pScreen)->imp->StopDrawing(winRec->wid, flush);

-

-        FreeScratchPixmapHeader(winRec->pixmap);

-        TraverseTree(top, RestorePreDrawingPixmapVisitor, (pointer)winRec);

-        winRec->pixmap = NULL;

-

-        winRec->is_drawing = FALSE;

-    }

-    else if (flush) {

-        SCREENREC(pScreen)->imp->UpdateRegion(winRec->wid, NULL);

-    }

-

-    if (flush && winRec->is_reorder_pending) {

-        winRec->is_reorder_pending = FALSE;

-        RootlessReorderWindow(pWindow);

-    }

-}

-

-

-/*

- * RootlessDamageRegion

- *  Mark a damaged region as requiring redisplay to screen.

- *  pRegion is in GLOBAL coordinates.

- */

-void

-RootlessDamageRegion(WindowPtr pWindow, RegionPtr pRegion)

-{

-    RootlessWindowRec *winRec;

-    RegionRec clipped;

-    WindowPtr pTop;

-    BoxPtr b1, b2;

-

-    RL_DEBUG_MSG("Damaged win 0x%x ", pWindow);

-

-    pTop = TopLevelParent(pWindow);

-    if (pTop == NULL)

-        return;

-

-    winRec = WINREC(pTop);

-    if (winRec == NULL)

-        return;

-

-    /* We need to intersect the drawn region with the clip of the window

-       to avoid marking places we didn't actually draw (which can cause

-       problems when the window has an extra client-side backing store)

-

-       But this is a costly operation and since we'll normally just be

-       drawing inside the clip, go to some lengths to avoid the general

-       case intersection. */

-

-    b1 = RegionExtents(&pWindow->borderClip);

-    b2 = RegionExtents(pRegion);

-

-    if (EXTENTCHECK(b1, b2)) {

-        /* Regions may overlap. */

-

-        if (RegionNumRects(pRegion) == 1) {

-            int in;

-

-            /* Damaged region only has a single rect, so we can

-               just compare that against the region */

-

-            in = RegionContainsRect(&pWindow->borderClip,

-                                RegionRects (pRegion));

-            if (in == rgnIN) {

-            /* clip totally contains pRegion */

-

-                SCREENREC(pWindow->drawable.pScreen)->imp->

-                    DamageRects(winRec->wid,

-                                RegionNumRects(pRegion),

-                                RegionRects(pRegion),

-                                -winRec->x, -winRec->y);

-

-                RootlessQueueRedisplay(pTop->drawable.pScreen);

-                goto out;

-            }

-            else if (in == rgnOUT) {

-                /* clip doesn't contain pRegion */

-

-                goto out;

-            }

-        }

-

-        /* clip overlaps pRegion, need to intersect */

-

-        RegionNull(&clipped);

-        RegionIntersect(&clipped, &pWindow->borderClip, pRegion);

-

-        SCREENREC(pWindow->drawable.pScreen)->imp->

-            DamageRects(winRec->wid,

-                        RegionNumRects(&clipped),

-                        RegionRects(&clipped),

-                        -winRec->x, -winRec->y);

-

-        RegionUninit(&clipped);

-

-        RootlessQueueRedisplay(pTop->drawable.pScreen);

-    }

-

-out:

-#ifdef ROOTLESSDEBUG

-    {

-        BoxRec *box = RegionRects(pRegion), *end;

-        int numBox = RegionNumRects(pRegion);

-

-        for (end = box+numBox; box < end; box++) {

-            RL_DEBUG_MSG("Damage rect: %i, %i, %i, %i\n",

-                         box->x1, box->x2, box->y1, box->y2);

-        }

-    }

-#endif

-    return;

-}

-

-

-/*

- * RootlessDamageBox

- *  Mark a damaged box as requiring redisplay to screen.

- *  pRegion is in GLOBAL coordinates.

- */

-void

-RootlessDamageBox(WindowPtr pWindow, BoxPtr pBox)

-{

-    RegionRec region;

-

-    RegionInit(&region, pBox, 1);

-

-    RootlessDamageRegion(pWindow, &region);

-

-    RegionUninit(&region);  /* no-op */

-}

-

-

-/*

- * RootlessDamageRect

- *  Mark a damaged rectangle as requiring redisplay to screen.

- *  (x, y, w, h) is in window-local coordinates.

- */

-void

-RootlessDamageRect(WindowPtr pWindow, int x, int y, int w, int h)

-{

-    BoxRec box;

-    RegionRec region;

-

-    x += pWindow->drawable.x;

-    y += pWindow->drawable.y;

-

-    box.x1 = x;

-    box.x2 = x + w;

-    box.y1 = y;

-    box.y2 = y + h;

-

-    RegionInit(&region, &box, 1);

-

-    RootlessDamageRegion(pWindow, &region);

-

-    RegionUninit(&region);  /* no-op */

-}

-

-

-/*

- * RootlessRedisplay

- *  Stop drawing and redisplay the damaged region of a window.

- */

-void

-RootlessRedisplay(WindowPtr pWindow)

-{

-    RootlessStopDrawing(pWindow, TRUE);

-}

-

-

-/*

- * RootlessRepositionWindows

- *  Reposition all windows on a screen to their correct positions.

- */

-void

-RootlessRepositionWindows(ScreenPtr pScreen)

-{

-    WindowPtr root = pScreen->root;

-    WindowPtr win;

-

-    if (root != NULL) {

-        RootlessRepositionWindow(root);

-

-        for (win = root->firstChild; win; win = win->nextSib) {

-            if (WINREC(win) != NULL)

-                RootlessRepositionWindow(win);

-        }

-    }

-}

-

-

-/*

- * RootlessRedisplayScreen

- *  Walk every window on a screen and redisplay the damaged regions.

- */

-void

-RootlessRedisplayScreen(ScreenPtr pScreen)

-{

-    WindowPtr root = pScreen->root;

-

-    if (root != NULL) {

-        WindowPtr win;

-

-        RootlessRedisplay(root);

-        for (win = root->firstChild; win; win = win->nextSib) {

-            if (WINREC(win) != NULL) {

-                RootlessRedisplay(win);

-            }

-        }

-    }

-}

+/*
+ * Common rootless definitions and code
+ */
+/*
+ * Copyright (c) 2001 Greg Parker. All Rights Reserved.
+ * Copyright (c) 2002-2003 Torrey T. Lyons. All Rights Reserved.
+ * Copyright (c) 2002 Apple Computer, Inc. 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
+ * 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 shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE ABOVE LISTED COPYRIGHT HOLDER(S) 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.
+ *
+ * Except as contained in this notice, the name(s) of the above copyright
+ * holders shall not be used in advertising or otherwise to promote the sale,
+ * use or other dealings in this Software without prior written authorization.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <stddef.h>             /* For NULL */
+#include <limits.h>             /* For CHAR_BIT */
+
+#include "rootlessCommon.h"
+#include "colormapst.h"
+
+unsigned int rootless_CopyBytes_threshold = 0;
+unsigned int rootless_CopyWindow_threshold = 0;
+int rootlessGlobalOffsetX = 0;
+int rootlessGlobalOffsetY = 0;
+
+RegionRec rootlessHugeRoot = { {-32767, -32767, 32767, 32767}, NULL };
+
+/* Following macro from miregion.c */
+
+/*  true iff two Boxes overlap */
+#define EXTENTCHECK(r1,r2) \
+      (!( ((r1)->x2 <= (r2)->x1)  || \
+          ((r1)->x1 >= (r2)->x2)  || \
+          ((r1)->y2 <= (r2)->y1)  || \
+          ((r1)->y1 >= (r2)->y2) ) )
+
+/*
+ * TopLevelParent
+ *  Returns the top-level parent of pWindow.
+ *  The root is the top-level parent of itself, even though the root is
+ *  not otherwise considered to be a top-level window.
+ */
+WindowPtr
+TopLevelParent(WindowPtr pWindow)
+{
+    WindowPtr top;
+
+    if (IsRoot(pWindow))
+        return pWindow;
+
+    top = pWindow;
+    while (top && !IsTopLevel(top))
+        top = top->parent;
+
+    return top;
+}
+
+/*
+ * IsFramedWindow
+ *  Returns TRUE if this window is visible inside a frame
+ *  (e.g. it is visible and has a top-level or root parent)
+ */
+Bool
+IsFramedWindow(WindowPtr pWin)
+{
+    WindowPtr top;
+
+    if (!dixPrivateKeyRegistered(&rootlessWindowPrivateKeyRec))
+        return FALSE;
+
+    if (!pWin->realized)
+        return FALSE;
+    top = TopLevelParent(pWin);
+
+    return (top && WINREC(top));
+}
+
+Bool
+RootlessResolveColormap(ScreenPtr pScreen, int first_color,
+                        int n_colors, uint32_t * colors)
+{
+    int last, i;
+    ColormapPtr map;
+
+    map = RootlessGetColormap(pScreen);
+    if (map == NULL || map->class != PseudoColor)
+        return FALSE;
+
+    last = min(map->pVisual->ColormapEntries, first_color + n_colors);
+    for (i = max(0, first_color); i < last; i++) {
+        Entry *ent = map->red + i;
+        uint16_t red, green, blue;
+
+        if (!ent->refcnt)
+            continue;
+        if (ent->fShared) {
+            red = ent->co.shco.red->color;
+            green = ent->co.shco.green->color;
+            blue = ent->co.shco.blue->color;
+        }
+        else {
+            red = ent->co.local.red;
+            green = ent->co.local.green;
+            blue = ent->co.local.blue;
+        }
+
+        colors[i - first_color] = (0xFF000000UL
+                                   | ((uint32_t) red & 0xff00) << 8
+                                   | (green & 0xff00)
+                                   | (blue >> 8));
+    }
+
+    return TRUE;
+}
+
+/*
+ * RootlessStartDrawing
+ *  Prepare a window for direct access to its backing buffer.
+ *  Each top-level parent has a Pixmap representing its backing buffer,
+ *  which all of its children inherit.
+ */
+void
+RootlessStartDrawing(WindowPtr pWindow)
+{
+    ScreenPtr pScreen = pWindow->drawable.pScreen;
+    WindowPtr top = TopLevelParent(pWindow);
+    RootlessWindowRec *winRec;
+    PixmapPtr curPixmap;
+
+    if (top == NULL)
+        return;
+    winRec = WINREC(top);
+    if (winRec == NULL)
+        return;
+
+    // Make sure the window's top-level parent is prepared for drawing.
+    if (!winRec->is_drawing) {
+        int bw = wBorderWidth(top);
+
+        SCREENREC(pScreen)->imp->StartDrawing(winRec->wid, &winRec->pixelData,
+                                              &winRec->bytesPerRow);
+
+        winRec->pixmap =
+            GetScratchPixmapHeader(pScreen, winRec->width, winRec->height,
+                                   top->drawable.depth,
+                                   top->drawable.bitsPerPixel,
+                                   winRec->bytesPerRow, winRec->pixelData);
+        SetPixmapBaseToScreen(winRec->pixmap,
+                              top->drawable.x - bw, top->drawable.y - bw);
+
+        winRec->is_drawing = TRUE;
+    }
+
+    curPixmap = pScreen->GetWindowPixmap(pWindow);
+    if (curPixmap == winRec->pixmap) {
+        RL_DEBUG_MSG("Window %p already has winRec->pixmap %p; not pushing\n",
+                     pWindow, winRec->pixmap);
+    }
+    else {
+        PixmapPtr oldPixmap =
+            dixLookupPrivate(&pWindow->devPrivates,
+                             rootlessWindowOldPixmapPrivateKey);
+        if (oldPixmap != NULL) {
+            if (oldPixmap == curPixmap)
+                RL_DEBUG_MSG
+                    ("Window %p's curPixmap %p is the same as its oldPixmap; strange\n",
+                     pWindow, curPixmap);
+            else
+                RL_DEBUG_MSG("Window %p's existing oldPixmap %p being lost!\n",
+                             pWindow, oldPixmap);
+        }
+        dixSetPrivate(&pWindow->devPrivates, rootlessWindowOldPixmapPrivateKey,
+                      curPixmap);
+        pScreen->SetWindowPixmap(pWindow, winRec->pixmap);
+    }
+}
+
+/*
+ * RootlessStopDrawing
+ *  Stop drawing to a window's backing buffer. If flush is true,
+ *  damaged regions are flushed to the screen.
+ */
+static int
+RestorePreDrawingPixmapVisitor(WindowPtr pWindow, pointer data)
+{
+    RootlessWindowRec *winRec = (RootlessWindowRec *) data;
+    ScreenPtr pScreen = pWindow->drawable.pScreen;
+    PixmapPtr exPixmap = pScreen->GetWindowPixmap(pWindow);
+    PixmapPtr oldPixmap =
+        dixLookupPrivate(&pWindow->devPrivates,
+                         rootlessWindowOldPixmapPrivateKey);
+    if (oldPixmap == NULL) {
+        if (exPixmap == winRec->pixmap)
+            RL_DEBUG_MSG
+                ("Window %p appears to be in drawing mode (ex-pixmap %p equals winRec->pixmap, which is being freed) but has no oldPixmap!\n",
+                 pWindow, exPixmap);
+    }
+    else {
+        if (exPixmap != winRec->pixmap)
+            RL_DEBUG_MSG
+                ("Window %p appears to be in drawing mode (oldPixmap %p) but ex-pixmap %p not winRec->pixmap %p!\n",
+                 pWindow, oldPixmap, exPixmap, winRec->pixmap);
+        if (oldPixmap == winRec->pixmap)
+            RL_DEBUG_MSG
+                ("Window %p's oldPixmap %p is winRec->pixmap, which has just been freed!\n",
+                 pWindow, oldPixmap);
+        pScreen->SetWindowPixmap(pWindow, oldPixmap);
+        dixSetPrivate(&pWindow->devPrivates, rootlessWindowOldPixmapPrivateKey,
+                      NULL);
+    }
+    return WT_WALKCHILDREN;
+}
+
+void
+RootlessStopDrawing(WindowPtr pWindow, Bool flush)
+{
+    ScreenPtr pScreen = pWindow->drawable.pScreen;
+    WindowPtr top = TopLevelParent(pWindow);
+    RootlessWindowRec *winRec;
+
+    if (top == NULL)
+        return;
+    winRec = WINREC(top);
+    if (winRec == NULL)
+        return;
+
+    if (winRec->is_drawing) {
+        SCREENREC(pScreen)->imp->StopDrawing(winRec->wid, flush);
+
+        FreeScratchPixmapHeader(winRec->pixmap);
+        TraverseTree(top, RestorePreDrawingPixmapVisitor, (pointer) winRec);
+        winRec->pixmap = NULL;
+
+        winRec->is_drawing = FALSE;
+    }
+    else if (flush) {
+        SCREENREC(pScreen)->imp->UpdateRegion(winRec->wid, NULL);
+    }
+
+    if (flush && winRec->is_reorder_pending) {
+        winRec->is_reorder_pending = FALSE;
+        RootlessReorderWindow(pWindow);
+    }
+}
+
+/*
+ * RootlessDamageRegion
+ *  Mark a damaged region as requiring redisplay to screen.
+ *  pRegion is in GLOBAL coordinates.
+ */
+void
+RootlessDamageRegion(WindowPtr pWindow, RegionPtr pRegion)
+{
+    RootlessWindowRec *winRec;
+    RegionRec clipped;
+    WindowPtr pTop;
+    BoxPtr b1, b2;
+
+    RL_DEBUG_MSG("Damaged win 0x%x ", pWindow);
+
+    pTop = TopLevelParent(pWindow);
+    if (pTop == NULL)
+        return;
+
+    winRec = WINREC(pTop);
+    if (winRec == NULL)
+        return;
+
+    /* We need to intersect the drawn region with the clip of the window
+       to avoid marking places we didn't actually draw (which can cause
+       problems when the window has an extra client-side backing store)
+
+       But this is a costly operation and since we'll normally just be
+       drawing inside the clip, go to some lengths to avoid the general
+       case intersection. */
+
+    b1 = RegionExtents(&pWindow->borderClip);
+    b2 = RegionExtents(pRegion);
+
+    if (EXTENTCHECK(b1, b2)) {
+        /* Regions may overlap. */
+
+        if (RegionNumRects(pRegion) == 1) {
+            int in;
+
+            /* Damaged region only has a single rect, so we can
+               just compare that against the region */
+
+            in = RegionContainsRect(&pWindow->borderClip, RegionRects(pRegion));
+            if (in == rgnIN) {
+                /* clip totally contains pRegion */
+
+                SCREENREC(pWindow->drawable.pScreen)->imp->DamageRects(winRec->
+                                                                       wid,
+                                                                       RegionNumRects
+                                                                       (pRegion),
+                                                                       RegionRects
+                                                                       (pRegion),
+                                                                       -winRec->
+                                                                       x,
+                                                                       -winRec->
+                                                                       y);
+
+                RootlessQueueRedisplay(pTop->drawable.pScreen);
+                goto out;
+            }
+            else if (in == rgnOUT) {
+                /* clip doesn't contain pRegion */
+
+                goto out;
+            }
+        }
+
+        /* clip overlaps pRegion, need to intersect */
+
+        RegionNull(&clipped);
+        RegionIntersect(&clipped, &pWindow->borderClip, pRegion);
+
+        SCREENREC(pWindow->drawable.pScreen)->imp->DamageRects(winRec->wid,
+                                                               RegionNumRects
+                                                               (&clipped),
+                                                               RegionRects
+                                                               (&clipped),
+                                                               -winRec->x,
+                                                               -winRec->y);
+
+        RegionUninit(&clipped);
+
+        RootlessQueueRedisplay(pTop->drawable.pScreen);
+    }
+
+ out:
+#ifdef ROOTLESSDEBUG
+    {
+        BoxRec *box = RegionRects(pRegion), *end;
+        int numBox = RegionNumRects(pRegion);
+
+        for (end = box + numBox; box < end; box++) {
+            RL_DEBUG_MSG("Damage rect: %i, %i, %i, %i\n",
+                         box->x1, box->x2, box->y1, box->y2);
+        }
+    }
+#endif
+    return;
+}
+
+/*
+ * RootlessDamageBox
+ *  Mark a damaged box as requiring redisplay to screen.
+ *  pRegion is in GLOBAL coordinates.
+ */
+void
+RootlessDamageBox(WindowPtr pWindow, BoxPtr pBox)
+{
+    RegionRec region;
+
+    RegionInit(&region, pBox, 1);
+
+    RootlessDamageRegion(pWindow, &region);
+
+    RegionUninit(&region);      /* no-op */
+}
+
+/*
+ * RootlessDamageRect
+ *  Mark a damaged rectangle as requiring redisplay to screen.
+ *  (x, y, w, h) is in window-local coordinates.
+ */
+void
+RootlessDamageRect(WindowPtr pWindow, int x, int y, int w, int h)
+{
+    BoxRec box;
+    RegionRec region;
+
+    x += pWindow->drawable.x;
+    y += pWindow->drawable.y;
+
+    box.x1 = x;
+    box.x2 = x + w;
+    box.y1 = y;
+    box.y2 = y + h;
+
+    RegionInit(&region, &box, 1);
+
+    RootlessDamageRegion(pWindow, &region);
+
+    RegionUninit(&region);      /* no-op */
+}
+
+/*
+ * RootlessRedisplay
+ *  Stop drawing and redisplay the damaged region of a window.
+ */
+void
+RootlessRedisplay(WindowPtr pWindow)
+{
+    RootlessStopDrawing(pWindow, TRUE);
+}
+
+/*
+ * RootlessRepositionWindows
+ *  Reposition all windows on a screen to their correct positions.
+ */
+void
+RootlessRepositionWindows(ScreenPtr pScreen)
+{
+    WindowPtr root = pScreen->root;
+    WindowPtr win;
+
+    if (root != NULL) {
+        RootlessRepositionWindow(root);
+
+        for (win = root->firstChild; win; win = win->nextSib) {
+            if (WINREC(win) != NULL)
+                RootlessRepositionWindow(win);
+        }
+    }
+}
+
+/*
+ * RootlessRedisplayScreen
+ *  Walk every window on a screen and redisplay the damaged regions.
+ */
+void
+RootlessRedisplayScreen(ScreenPtr pScreen)
+{
+    WindowPtr root = pScreen->root;
+
+    if (root != NULL) {
+        WindowPtr win;
+
+        RootlessRedisplay(root);
+        for (win = root->firstChild; win; win = win->nextSib) {
+            if (WINREC(win) != NULL) {
+                RootlessRedisplay(win);
+            }
+        }
+    }
+}