Synchronised line endinge with release branch

1 files changed, 608 insertions, 608 deletions

diff --git a/xorg-server/hw/xquartz/xpr/xprFrame.c b/xorg-server/hw/xquartz/xpr/xprFrame.c
index 4214eff33..98f1cc3ed 100644
--- a/xorg-server/hw/xquartz/xpr/xprFrame.c
+++ b/xorg-server/hw/xquartz/xpr/xprFrame.c
@@ -1,608 +1,608 @@
-/*

- * Xplugin rootless implementation frame functions

- *

- * Copyright (c) 2002-2011 Apple Computer, Inc. All rights reserved.

- * Copyright (c) 2003 Torrey T. Lyons. 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 "xpr.h"

-#include "rootlessCommon.h"

-#include <Xplugin.h>

-#include "x-hash.h"

-#include "applewmExt.h"

-

-#include "propertyst.h"

-#include "dix.h"

-#include <X11/Xatom.h>

-#include "windowstr.h"

-#include "quartz.h"

-

-#ifdef HAVE_LIBDISPATCH

-#include <dispatch/dispatch.h>

-#else

-#include <pthread.h>

-#endif

-

-#define DEFINE_ATOM_HELPER(func,atom_name)                      \

-static Atom func (void) {                                       \

-    static int generation;                                      \

-    static Atom atom;                                           \

-    if (generation != serverGeneration) {                       \

-        generation = serverGeneration;                          \

-        atom = MakeAtom (atom_name, strlen (atom_name), TRUE);  \

-    }                                                           \

-    return atom;                                                \

-}

-

-DEFINE_ATOM_HELPER(xa_native_window_id, "_NATIVE_WINDOW_ID")

-

-/* Maps xp_window_id -> RootlessWindowRec */

-static x_hash_table *window_hash;

-

-/* Need to guard window_hash since xprIsX11Window can be called from any thread. */

-#ifdef HAVE_LIBDISPATCH

-static dispatch_queue_t window_hash_serial_q;

-#else

-static pthread_rwlock_t window_hash_rwlock;

-#endif

-

-/* Prototypes for static functions */

-static Bool xprCreateFrame(RootlessWindowPtr pFrame, ScreenPtr pScreen,

-               int newX, int newY, RegionPtr pShape);

-static void xprDestroyFrame(RootlessFrameID wid);

-static void xprMoveFrame(RootlessFrameID wid, ScreenPtr pScreen, int newX, int newY);

-static void xprResizeFrame(RootlessFrameID wid, ScreenPtr pScreen,

-               int newX, int newY, unsigned int newW, unsigned int newH,

-               unsigned int gravity);

-static void xprRestackFrame(RootlessFrameID wid, RootlessFrameID nextWid);

-static void xprReshapeFrame(RootlessFrameID wid, RegionPtr pShape);

-static void xprUnmapFrame(RootlessFrameID wid);

-static void xprStartDrawing(RootlessFrameID wid, char **pixelData, int *bytesPerRow);

-static void xprStopDrawing(RootlessFrameID wid, Bool flush);

-static void xprUpdateRegion(RootlessFrameID wid, RegionPtr pDamage);

-static void xprDamageRects(RootlessFrameID wid, int nrects, const BoxRec *rects,

-               int shift_x, int shift_y);

-static void xprSwitchWindow(RootlessWindowPtr pFrame, WindowPtr oldWin);

-static Bool xprDoReorderWindow(RootlessWindowPtr pFrame);

-static void xprHideWindow(RootlessFrameID wid);

-static void xprUpdateColormap(RootlessFrameID wid, ScreenPtr pScreen);

-static void xprCopyWindow(RootlessFrameID wid, int dstNrects, const BoxRec *dstRects,

-              int dx, int dy);

-

-

-static inline xp_error

-xprConfigureWindow(xp_window_id id, unsigned int mask,

-                   const xp_window_changes *values)

-{

-    return xp_configure_window(id, mask, values);

-}

-

-

-static void

-xprSetNativeProperty(RootlessWindowPtr pFrame)

-{

-    xp_error err;

-    unsigned int native_id;

-    long data;

-

-    err = xp_get_native_window(x_cvt_vptr_to_uint(pFrame->wid), &native_id);

-    if (err == Success)

-    {

-        /* FIXME: move this to AppleWM extension */

-

-        data = native_id;

-        dixChangeWindowProperty(serverClient, pFrame->win, xa_native_window_id(),

-				XA_INTEGER, 32, PropModeReplace, 1, &data, TRUE);

-    }

-}

-

-static xp_error

-xprColormapCallback(void *data, int first_color, int n_colors, uint32_t *colors)

-{

-    return (RootlessResolveColormap (data, first_color, n_colors, colors) ? XP_Success : XP_BadMatch);

-}

-

-/*

- * Create and display a new frame.

- */

-static Bool

-xprCreateFrame(RootlessWindowPtr pFrame, ScreenPtr pScreen,

-               int newX, int newY, RegionPtr pShape)

-{

-    WindowPtr pWin = pFrame->win;

-    xp_window_changes wc;

-    unsigned int mask = 0;

-    xp_error err;

-

-    wc.x = newX;

-    wc.y = newY;

-    wc.width = pFrame->width;

-    wc.height = pFrame->height;

-    wc.bit_gravity = XP_GRAVITY_NONE;

-    mask |= XP_BOUNDS;

-

-    if (pWin->drawable.depth == 8)

-    {

-        wc.depth = XP_DEPTH_INDEX8;

-        wc.colormap = xprColormapCallback;

-        wc.colormap_data = pScreen;

-        mask |= XP_COLORMAP;

-    }

-    else if (pWin->drawable.depth == 15)

-        wc.depth = XP_DEPTH_RGB555;

-    else if (pWin->drawable.depth == 24)

-        wc.depth = XP_DEPTH_ARGB8888;

-    else

-        wc.depth = XP_DEPTH_NIL;

-    mask |= XP_DEPTH;

-

-    if (pShape != NULL)

-    {

-        wc.shape_nrects = RegionNumRects(pShape);

-        wc.shape_rects = RegionRects(pShape);

-        wc.shape_tx = wc.shape_ty = 0;

-        mask |= XP_SHAPE;

-    }

-

-    pFrame->level = !IsRoot (pWin) ? AppleWMWindowLevelNormal : AppleWMNumWindowLevels;

-

-    if(XQuartzIsRootless)

-        wc.window_level = normal_window_levels[pFrame->level];

-    else if(XQuartzShieldingWindowLevel)

-        wc.window_level = XQuartzShieldingWindowLevel + 1;

-    else

-        wc.window_level = rooted_window_levels[pFrame->level];

-    mask |= XP_WINDOW_LEVEL;

-

-    err = xp_create_window(mask, &wc, (xp_window_id *) &pFrame->wid);

-

-    if (err != Success)

-    {

-        return FALSE;

-    }

-

-#ifdef HAVE_LIBDISPATCH

-    dispatch_async(window_hash_serial_q, ^{

-        x_hash_table_insert(window_hash, pFrame->wid, pFrame);

-    });

-#else

-    pthread_rwlock_wrlock(&window_hash_rwlock);

-    x_hash_table_insert(window_hash, pFrame->wid, pFrame);

-    pthread_rwlock_wrlock(&window_hash_rwlock);

-#endif

-

-    xprSetNativeProperty(pFrame);

-

-    return TRUE;

-}

-

-

-/*

- * Destroy a frame.

- */

-static void

-xprDestroyFrame(RootlessFrameID wid)

-{

-    xp_error err;

-

-#ifdef HAVE_LIBDISPATCH

-    dispatch_async(window_hash_serial_q, ^{

-        x_hash_table_remove(window_hash, wid);

-    });

-#else

-    pthread_rwlock_wrlock(&window_hash_rwlock);

-    x_hash_table_remove(window_hash, wid);

-    pthread_rwlock_unlock(&window_hash_rwlock);

-#endif

-

-    err = xp_destroy_window(x_cvt_vptr_to_uint(wid));

-    if (err != Success)

-        FatalError("Could not destroy window %d (%d).", (int)x_cvt_vptr_to_uint(wid), (int)err);

-}

-

-

-/*

- * Move a frame on screen.

- */

-static void

-xprMoveFrame(RootlessFrameID wid, ScreenPtr pScreen, int newX, int newY)

-{

-    xp_window_changes wc;

-

-    wc.x = newX;

-    wc.y = newY;

-    //    ErrorF("xprMoveFrame(%d, %p, %d, %d)\n", wid, pScreen, newX, newY);

-    xprConfigureWindow(x_cvt_vptr_to_uint(wid), XP_ORIGIN, &wc);

-}

-

-

-/*

- * Resize and move a frame.

- */

-static void

-xprResizeFrame(RootlessFrameID wid, ScreenPtr pScreen,

-               int newX, int newY, unsigned int newW, unsigned int newH,

-               unsigned int gravity)

-{

-    xp_window_changes wc;

-

-    wc.x = newX;

-    wc.y = newY;

-    wc.width = newW;

-    wc.height = newH;

-    wc.bit_gravity = gravity;

-

-    /* It's unlikely that being async will save us anything here.

-       But it can't hurt. */

-

-    xprConfigureWindow(x_cvt_vptr_to_uint(wid), XP_BOUNDS, &wc);

-}

-

-

-/*

- * Change frame stacking.

- */

-static void xprRestackFrame(RootlessFrameID wid, RootlessFrameID nextWid) {

-    xp_window_changes wc;

-    unsigned int mask = XP_STACKING;

-#ifdef HAVE_LIBDISPATCH

-    __block

-#endif

-    RootlessWindowRec *winRec;

-

-    /* Stack frame below nextWid it if it exists, or raise

-       frame above everything otherwise. */

-

-    if(nextWid == NULL) {

-        wc.stack_mode = XP_MAPPED_ABOVE;

-        wc.sibling = 0;

-    } else {

-        wc.stack_mode = XP_MAPPED_BELOW;

-        wc.sibling = x_cvt_vptr_to_uint(nextWid);

-    }

-

-#ifdef HAVE_LIBDISPATCH

-    dispatch_sync(window_hash_serial_q, ^{

-        winRec = x_hash_table_lookup(window_hash, wid, NULL);

-    });

-#else

-    pthread_rwlock_rdlock(&window_hash_rwlock);

-    winRec = x_hash_table_lookup(window_hash, wid, NULL);

-    pthread_rwlock_unlock(&window_hash_rwlock);

-#endif

-    

-    if(winRec) {

-        if(XQuartzIsRootless)

-            wc.window_level = normal_window_levels[winRec->level];

-        else if(XQuartzShieldingWindowLevel)

-            wc.window_level = XQuartzShieldingWindowLevel + 1;

-        else

-            wc.window_level = rooted_window_levels[winRec->level];

-        mask |= XP_WINDOW_LEVEL;

-    }

-

-    xprConfigureWindow(x_cvt_vptr_to_uint(wid), mask, &wc);

-}

-

-

-/*

- * Change the frame's shape.

- */

-static void

-xprReshapeFrame(RootlessFrameID wid, RegionPtr pShape)

-{

-    xp_window_changes wc;

-

-    if (pShape != NULL)

-    {

-        wc.shape_nrects = RegionNumRects(pShape);

-        wc.shape_rects = RegionRects(pShape);

-    }

-    else

-    {

-        wc.shape_nrects = -1;

-        wc.shape_rects = NULL;

-    }

-

-    wc.shape_tx = wc.shape_ty = 0;

-

-    xprConfigureWindow(x_cvt_vptr_to_uint(wid), XP_SHAPE, &wc);

-}

-

-

-/*

- * Unmap a frame.

- */

-static void

-xprUnmapFrame(RootlessFrameID wid)

-{

-    xp_window_changes wc;

-

-    wc.stack_mode = XP_UNMAPPED;

-    wc.sibling = 0;

-

-    xprConfigureWindow(x_cvt_vptr_to_uint(wid), XP_STACKING, &wc);

-}

-

-

-/*

- * Start drawing to a frame.

- *  Prepare for direct access to its backing buffer.

- */

-static void

-xprStartDrawing(RootlessFrameID wid, char **pixelData, int *bytesPerRow)

-{

-    void *data[2];

-    unsigned int rowbytes[2];

-    xp_error err;

-

-    err = xp_lock_window(x_cvt_vptr_to_uint(wid), NULL, NULL, data, rowbytes, NULL);

-    if (err != Success)

-        FatalError("Could not lock window %d for drawing (%d).", (int)x_cvt_vptr_to_uint(wid), (int)err);

-

-    *pixelData = data[0];

-    *bytesPerRow = rowbytes[0];

-}

-

-

-/*

- * Stop drawing to a frame.

- */

-static void

-xprStopDrawing(RootlessFrameID wid, Bool flush)

-{

-    xp_error err;

-

-    err = xp_unlock_window(x_cvt_vptr_to_uint(wid), flush);

-    /* This should be a FatalError, but we started tripping over it.  Make it a

-     * FatalError after http://xquartz.macosforge.org/trac/ticket/482 is fixed.

-     */

-    if(err != Success)

-        ErrorF("Could not unlock window %d after drawing (%d).", (int)x_cvt_vptr_to_uint(wid), (int)err);

-}

-

-

-/*

- * Flush drawing updates to the screen.

- */

-static void

-xprUpdateRegion(RootlessFrameID wid, RegionPtr pDamage)

-{

-    xp_flush_window(x_cvt_vptr_to_uint(wid));

-}

-

-

-/*

- * Mark damaged rectangles as requiring redisplay to screen.

- */

-static void

-xprDamageRects(RootlessFrameID wid, int nrects, const BoxRec *rects,

-               int shift_x, int shift_y)

-{

-    xp_mark_window(x_cvt_vptr_to_uint(wid), nrects, rects, shift_x, shift_y);

-}

-

-

-/*

- * Called after the window associated with a frame has been switched

- * to a new top-level parent.

- */

-static void

-xprSwitchWindow(RootlessWindowPtr pFrame, WindowPtr oldWin)

-{

-    DeleteProperty(serverClient, oldWin, xa_native_window_id());

-

-    xprSetNativeProperty(pFrame);

-}

-

-

-/*

- * Called to check if the frame should be reordered when it is restacked.

- */

-static Bool xprDoReorderWindow(RootlessWindowPtr pFrame)

-{

-    WindowPtr pWin = pFrame->win;

-

-    return AppleWMDoReorderWindow(pWin);

-}

-

-

-/*

- * Copy area in frame to another part of frame.

- *  Used to accelerate scrolling.

- */

-static void

-xprCopyWindow(RootlessFrameID wid, int dstNrects, const BoxRec *dstRects,

-              int dx, int dy)

-{

-    xp_copy_window(x_cvt_vptr_to_uint(wid), x_cvt_vptr_to_uint(wid),

-                   dstNrects, dstRects, dx, dy);

-}

-

-

-static RootlessFrameProcsRec xprRootlessProcs = {

-    xprCreateFrame,

-    xprDestroyFrame,

-    xprMoveFrame,

-    xprResizeFrame,

-    xprRestackFrame,

-    xprReshapeFrame,

-    xprUnmapFrame,

-    xprStartDrawing,

-    xprStopDrawing,

-    xprUpdateRegion,

-    xprDamageRects,

-    xprSwitchWindow,

-    xprDoReorderWindow,

-    xprHideWindow,

-    xprUpdateColormap,

-    xp_copy_bytes,

-    xprCopyWindow

-};

-

-

-/*

- * Initialize XPR implementation

- */

-Bool

-xprInit(ScreenPtr pScreen)

-{

-    RootlessInit(pScreen, &xprRootlessProcs);

-

-    rootless_CopyBytes_threshold = xp_copy_bytes_threshold;

-    rootless_CopyWindow_threshold = xp_scroll_area_threshold;

-

-    assert((window_hash = x_hash_table_new(NULL, NULL, NULL, NULL)));

-#ifdef HAVE_LIBDISPATCH

-    assert((window_hash_serial_q = dispatch_queue_create(BUNDLE_ID_PREFIX".X11.xpr_window_hash", NULL)));

-#else

-    assert(0 == pthread_rwlock_init(&window_hash_rwlock, NULL));

-#endif

-    

-    return TRUE;

-}

-

-

-/*

- * Given the id of a physical window, try to find the top-level (or root)

- * X window that it represents.

- */

-WindowPtr

-xprGetXWindow(xp_window_id wid)

-{

-#ifdef HAVE_LIBDISPATCH

-    RootlessWindowRec *winRec __block;

-    dispatch_sync(window_hash_serial_q, ^{

-        winRec = x_hash_table_lookup(window_hash, x_cvt_uint_to_vptr(wid), NULL);

-    });

-#else

-    RootlessWindowRec *winRec;

-    pthread_rwlock_rdlock(&window_hash_rwlock);

-    winRec = x_hash_table_lookup(window_hash, x_cvt_uint_to_vptr(wid), NULL);

-    pthread_rwlock_unlock(&window_hash_rwlock);

-#endif

-

-    return winRec != NULL ? winRec->win : NULL;

-}

-

-/*

- * The windowNumber is an AppKit window number. Returns TRUE if xpr is

- * displaying a window with that number.

- */

-Bool

-xprIsX11Window(int windowNumber)

-{

-    Bool ret;

-    xp_window_id wid;

-

-    if (xp_lookup_native_window(windowNumber, &wid))

-        ret = xprGetXWindow(wid) != NULL;

-    else

-        ret = FALSE;

-

-    return ret;

-}

-

-

-/*

- * xprHideWindows

- *  Hide or unhide all top level windows. This is called for application hide/

- *  unhide events if the window manager is not Apple-WM aware. Xplugin windows

- *  do not hide or unhide themselves.

- */

-void

-xprHideWindows(Bool hide)

-{

-    int screen;

-    WindowPtr pRoot, pWin;

-

-    for (screen = 0; screen < screenInfo.numScreens; screen++) {

-        RootlessFrameID prevWid = NULL;

-        pRoot = screenInfo.screens[screen]->root;

-

-        for (pWin = pRoot->firstChild; pWin; pWin = pWin->nextSib) {

-            RootlessWindowRec *winRec = WINREC(pWin);

-

-            if (winRec != NULL) {

-                if (hide) {

-                    xprUnmapFrame(winRec->wid);

-                } else {

-                    BoxRec box;

-

-                    xprRestackFrame(winRec->wid, prevWid);

-                    prevWid = winRec->wid;

-

-                    box.x1 = 0;

-                    box.y1 = 0;

-                    box.x2 = winRec->width;

-                    box.y2 = winRec->height;

-

-                    xprDamageRects(winRec->wid, 1, &box, 0, 0);

-                    RootlessQueueRedisplay(screenInfo.screens[screen]);

-                }

-            }

-        }

-    }

-}

-

-// XXX: identical to x_cvt_vptr_to_uint ?

-#define MAKE_WINDOW_ID(x)		((xp_window_id)((size_t)(x)))

-

-Bool no_configure_window;

-

-static inline int

-configure_window (xp_window_id id, unsigned int mask,

-                  const xp_window_changes *values)

-{

-  if (!no_configure_window)

-    return xp_configure_window (id, mask, values);

-  else

-    return XP_Success;

-}

-

-

-static

-void xprUpdateColormap(RootlessFrameID wid, ScreenPtr pScreen)

-{

-  /* This is how we tell xp that the colormap may have changed. */

-  xp_window_changes wc;

-  wc.colormap = xprColormapCallback;

-  wc.colormap_data = pScreen;

-

-  configure_window(MAKE_WINDOW_ID(wid), XP_COLORMAP, &wc);

-}

-

-static

-void xprHideWindow(RootlessFrameID wid)

-{

-  xp_window_changes wc;

-  wc.stack_mode = XP_UNMAPPED;

-  wc.sibling = 0;

-  configure_window(MAKE_WINDOW_ID(wid), XP_STACKING, &wc);

-}

+/*
+ * Xplugin rootless implementation frame functions
+ *
+ * Copyright (c) 2002-2011 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2003 Torrey T. Lyons. 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 "xpr.h"
+#include "rootlessCommon.h"
+#include <Xplugin.h>
+#include "x-hash.h"
+#include "applewmExt.h"
+
+#include "propertyst.h"
+#include "dix.h"
+#include <X11/Xatom.h>
+#include "windowstr.h"
+#include "quartz.h"
+
+#ifdef HAVE_LIBDISPATCH
+#include <dispatch/dispatch.h>
+#else
+#include <pthread.h>
+#endif
+
+#define DEFINE_ATOM_HELPER(func,atom_name)                      \
+static Atom func (void) {                                       \
+    static int generation;                                      \
+    static Atom atom;                                           \
+    if (generation != serverGeneration) {                       \
+        generation = serverGeneration;                          \
+        atom = MakeAtom (atom_name, strlen (atom_name), TRUE);  \
+    }                                                           \
+    return atom;                                                \
+}
+
+DEFINE_ATOM_HELPER(xa_native_window_id, "_NATIVE_WINDOW_ID")
+
+/* Maps xp_window_id -> RootlessWindowRec */
+static x_hash_table *window_hash;
+
+/* Need to guard window_hash since xprIsX11Window can be called from any thread. */
+#ifdef HAVE_LIBDISPATCH
+static dispatch_queue_t window_hash_serial_q;
+#else
+static pthread_rwlock_t window_hash_rwlock;
+#endif
+
+/* Prototypes for static functions */
+static Bool xprCreateFrame(RootlessWindowPtr pFrame, ScreenPtr pScreen,
+               int newX, int newY, RegionPtr pShape);
+static void xprDestroyFrame(RootlessFrameID wid);
+static void xprMoveFrame(RootlessFrameID wid, ScreenPtr pScreen, int newX, int newY);
+static void xprResizeFrame(RootlessFrameID wid, ScreenPtr pScreen,
+               int newX, int newY, unsigned int newW, unsigned int newH,
+               unsigned int gravity);
+static void xprRestackFrame(RootlessFrameID wid, RootlessFrameID nextWid);
+static void xprReshapeFrame(RootlessFrameID wid, RegionPtr pShape);
+static void xprUnmapFrame(RootlessFrameID wid);
+static void xprStartDrawing(RootlessFrameID wid, char **pixelData, int *bytesPerRow);
+static void xprStopDrawing(RootlessFrameID wid, Bool flush);
+static void xprUpdateRegion(RootlessFrameID wid, RegionPtr pDamage);
+static void xprDamageRects(RootlessFrameID wid, int nrects, const BoxRec *rects,
+               int shift_x, int shift_y);
+static void xprSwitchWindow(RootlessWindowPtr pFrame, WindowPtr oldWin);
+static Bool xprDoReorderWindow(RootlessWindowPtr pFrame);
+static void xprHideWindow(RootlessFrameID wid);
+static void xprUpdateColormap(RootlessFrameID wid, ScreenPtr pScreen);
+static void xprCopyWindow(RootlessFrameID wid, int dstNrects, const BoxRec *dstRects,
+              int dx, int dy);
+
+
+static inline xp_error
+xprConfigureWindow(xp_window_id id, unsigned int mask,
+                   const xp_window_changes *values)
+{
+    return xp_configure_window(id, mask, values);
+}
+
+
+static void
+xprSetNativeProperty(RootlessWindowPtr pFrame)
+{
+    xp_error err;
+    unsigned int native_id;
+    long data;
+
+    err = xp_get_native_window(x_cvt_vptr_to_uint(pFrame->wid), &native_id);
+    if (err == Success)
+    {
+        /* FIXME: move this to AppleWM extension */
+
+        data = native_id;
+        dixChangeWindowProperty(serverClient, pFrame->win, xa_native_window_id(),
+				XA_INTEGER, 32, PropModeReplace, 1, &data, TRUE);
+    }
+}
+
+static xp_error
+xprColormapCallback(void *data, int first_color, int n_colors, uint32_t *colors)
+{
+    return (RootlessResolveColormap (data, first_color, n_colors, colors) ? XP_Success : XP_BadMatch);
+}
+
+/*
+ * Create and display a new frame.
+ */
+static Bool
+xprCreateFrame(RootlessWindowPtr pFrame, ScreenPtr pScreen,
+               int newX, int newY, RegionPtr pShape)
+{
+    WindowPtr pWin = pFrame->win;
+    xp_window_changes wc;
+    unsigned int mask = 0;
+    xp_error err;
+
+    wc.x = newX;
+    wc.y = newY;
+    wc.width = pFrame->width;
+    wc.height = pFrame->height;
+    wc.bit_gravity = XP_GRAVITY_NONE;
+    mask |= XP_BOUNDS;
+
+    if (pWin->drawable.depth == 8)
+    {
+        wc.depth = XP_DEPTH_INDEX8;
+        wc.colormap = xprColormapCallback;
+        wc.colormap_data = pScreen;
+        mask |= XP_COLORMAP;
+    }
+    else if (pWin->drawable.depth == 15)
+        wc.depth = XP_DEPTH_RGB555;
+    else if (pWin->drawable.depth == 24)
+        wc.depth = XP_DEPTH_ARGB8888;
+    else
+        wc.depth = XP_DEPTH_NIL;
+    mask |= XP_DEPTH;
+
+    if (pShape != NULL)
+    {
+        wc.shape_nrects = RegionNumRects(pShape);
+        wc.shape_rects = RegionRects(pShape);
+        wc.shape_tx = wc.shape_ty = 0;
+        mask |= XP_SHAPE;
+    }
+
+    pFrame->level = !IsRoot (pWin) ? AppleWMWindowLevelNormal : AppleWMNumWindowLevels;
+
+    if(XQuartzIsRootless)
+        wc.window_level = normal_window_levels[pFrame->level];
+    else if(XQuartzShieldingWindowLevel)
+        wc.window_level = XQuartzShieldingWindowLevel + 1;
+    else
+        wc.window_level = rooted_window_levels[pFrame->level];
+    mask |= XP_WINDOW_LEVEL;
+
+    err = xp_create_window(mask, &wc, (xp_window_id *) &pFrame->wid);
+
+    if (err != Success)
+    {
+        return FALSE;
+    }
+
+#ifdef HAVE_LIBDISPATCH
+    dispatch_async(window_hash_serial_q, ^{
+        x_hash_table_insert(window_hash, pFrame->wid, pFrame);
+    });
+#else
+    pthread_rwlock_wrlock(&window_hash_rwlock);
+    x_hash_table_insert(window_hash, pFrame->wid, pFrame);
+    pthread_rwlock_wrlock(&window_hash_rwlock);
+#endif
+
+    xprSetNativeProperty(pFrame);
+
+    return TRUE;
+}
+
+
+/*
+ * Destroy a frame.
+ */
+static void
+xprDestroyFrame(RootlessFrameID wid)
+{
+    xp_error err;
+
+#ifdef HAVE_LIBDISPATCH
+    dispatch_async(window_hash_serial_q, ^{
+        x_hash_table_remove(window_hash, wid);
+    });
+#else
+    pthread_rwlock_wrlock(&window_hash_rwlock);
+    x_hash_table_remove(window_hash, wid);
+    pthread_rwlock_unlock(&window_hash_rwlock);
+#endif
+
+    err = xp_destroy_window(x_cvt_vptr_to_uint(wid));
+    if (err != Success)
+        FatalError("Could not destroy window %d (%d).", (int)x_cvt_vptr_to_uint(wid), (int)err);
+}
+
+
+/*
+ * Move a frame on screen.
+ */
+static void
+xprMoveFrame(RootlessFrameID wid, ScreenPtr pScreen, int newX, int newY)
+{
+    xp_window_changes wc;
+
+    wc.x = newX;
+    wc.y = newY;
+    //    ErrorF("xprMoveFrame(%d, %p, %d, %d)\n", wid, pScreen, newX, newY);
+    xprConfigureWindow(x_cvt_vptr_to_uint(wid), XP_ORIGIN, &wc);
+}
+
+
+/*
+ * Resize and move a frame.
+ */
+static void
+xprResizeFrame(RootlessFrameID wid, ScreenPtr pScreen,
+               int newX, int newY, unsigned int newW, unsigned int newH,
+               unsigned int gravity)
+{
+    xp_window_changes wc;
+
+    wc.x = newX;
+    wc.y = newY;
+    wc.width = newW;
+    wc.height = newH;
+    wc.bit_gravity = gravity;
+
+    /* It's unlikely that being async will save us anything here.
+       But it can't hurt. */
+
+    xprConfigureWindow(x_cvt_vptr_to_uint(wid), XP_BOUNDS, &wc);
+}
+
+
+/*
+ * Change frame stacking.
+ */
+static void xprRestackFrame(RootlessFrameID wid, RootlessFrameID nextWid) {
+    xp_window_changes wc;
+    unsigned int mask = XP_STACKING;
+#ifdef HAVE_LIBDISPATCH
+    __block
+#endif
+    RootlessWindowRec *winRec;
+
+    /* Stack frame below nextWid it if it exists, or raise
+       frame above everything otherwise. */
+
+    if(nextWid == NULL) {
+        wc.stack_mode = XP_MAPPED_ABOVE;
+        wc.sibling = 0;
+    } else {
+        wc.stack_mode = XP_MAPPED_BELOW;
+        wc.sibling = x_cvt_vptr_to_uint(nextWid);
+    }
+
+#ifdef HAVE_LIBDISPATCH
+    dispatch_sync(window_hash_serial_q, ^{
+        winRec = x_hash_table_lookup(window_hash, wid, NULL);
+    });
+#else
+    pthread_rwlock_rdlock(&window_hash_rwlock);
+    winRec = x_hash_table_lookup(window_hash, wid, NULL);
+    pthread_rwlock_unlock(&window_hash_rwlock);
+#endif
+    
+    if(winRec) {
+        if(XQuartzIsRootless)
+            wc.window_level = normal_window_levels[winRec->level];
+        else if(XQuartzShieldingWindowLevel)
+            wc.window_level = XQuartzShieldingWindowLevel + 1;
+        else
+            wc.window_level = rooted_window_levels[winRec->level];
+        mask |= XP_WINDOW_LEVEL;
+    }
+
+    xprConfigureWindow(x_cvt_vptr_to_uint(wid), mask, &wc);
+}
+
+
+/*
+ * Change the frame's shape.
+ */
+static void
+xprReshapeFrame(RootlessFrameID wid, RegionPtr pShape)
+{
+    xp_window_changes wc;
+
+    if (pShape != NULL)
+    {
+        wc.shape_nrects = RegionNumRects(pShape);
+        wc.shape_rects = RegionRects(pShape);
+    }
+    else
+    {
+        wc.shape_nrects = -1;
+        wc.shape_rects = NULL;
+    }
+
+    wc.shape_tx = wc.shape_ty = 0;
+
+    xprConfigureWindow(x_cvt_vptr_to_uint(wid), XP_SHAPE, &wc);
+}
+
+
+/*
+ * Unmap a frame.
+ */
+static void
+xprUnmapFrame(RootlessFrameID wid)
+{
+    xp_window_changes wc;
+
+    wc.stack_mode = XP_UNMAPPED;
+    wc.sibling = 0;
+
+    xprConfigureWindow(x_cvt_vptr_to_uint(wid), XP_STACKING, &wc);
+}
+
+
+/*
+ * Start drawing to a frame.
+ *  Prepare for direct access to its backing buffer.
+ */
+static void
+xprStartDrawing(RootlessFrameID wid, char **pixelData, int *bytesPerRow)
+{
+    void *data[2];
+    unsigned int rowbytes[2];
+    xp_error err;
+
+    err = xp_lock_window(x_cvt_vptr_to_uint(wid), NULL, NULL, data, rowbytes, NULL);
+    if (err != Success)
+        FatalError("Could not lock window %d for drawing (%d).", (int)x_cvt_vptr_to_uint(wid), (int)err);
+
+    *pixelData = data[0];
+    *bytesPerRow = rowbytes[0];
+}
+
+
+/*
+ * Stop drawing to a frame.
+ */
+static void
+xprStopDrawing(RootlessFrameID wid, Bool flush)
+{
+    xp_error err;
+
+    err = xp_unlock_window(x_cvt_vptr_to_uint(wid), flush);
+    /* This should be a FatalError, but we started tripping over it.  Make it a
+     * FatalError after http://xquartz.macosforge.org/trac/ticket/482 is fixed.
+     */
+    if(err != Success)
+        ErrorF("Could not unlock window %d after drawing (%d).", (int)x_cvt_vptr_to_uint(wid), (int)err);
+}
+
+
+/*
+ * Flush drawing updates to the screen.
+ */
+static void
+xprUpdateRegion(RootlessFrameID wid, RegionPtr pDamage)
+{
+    xp_flush_window(x_cvt_vptr_to_uint(wid));
+}
+
+
+/*
+ * Mark damaged rectangles as requiring redisplay to screen.
+ */
+static void
+xprDamageRects(RootlessFrameID wid, int nrects, const BoxRec *rects,
+               int shift_x, int shift_y)
+{
+    xp_mark_window(x_cvt_vptr_to_uint(wid), nrects, rects, shift_x, shift_y);
+}
+
+
+/*
+ * Called after the window associated with a frame has been switched
+ * to a new top-level parent.
+ */
+static void
+xprSwitchWindow(RootlessWindowPtr pFrame, WindowPtr oldWin)
+{
+    DeleteProperty(serverClient, oldWin, xa_native_window_id());
+
+    xprSetNativeProperty(pFrame);
+}
+
+
+/*
+ * Called to check if the frame should be reordered when it is restacked.
+ */
+static Bool xprDoReorderWindow(RootlessWindowPtr pFrame)
+{
+    WindowPtr pWin = pFrame->win;
+
+    return AppleWMDoReorderWindow(pWin);
+}
+
+
+/*
+ * Copy area in frame to another part of frame.
+ *  Used to accelerate scrolling.
+ */
+static void
+xprCopyWindow(RootlessFrameID wid, int dstNrects, const BoxRec *dstRects,
+              int dx, int dy)
+{
+    xp_copy_window(x_cvt_vptr_to_uint(wid), x_cvt_vptr_to_uint(wid),
+                   dstNrects, dstRects, dx, dy);
+}
+
+
+static RootlessFrameProcsRec xprRootlessProcs = {
+    xprCreateFrame,
+    xprDestroyFrame,
+    xprMoveFrame,
+    xprResizeFrame,
+    xprRestackFrame,
+    xprReshapeFrame,
+    xprUnmapFrame,
+    xprStartDrawing,
+    xprStopDrawing,
+    xprUpdateRegion,
+    xprDamageRects,
+    xprSwitchWindow,
+    xprDoReorderWindow,
+    xprHideWindow,
+    xprUpdateColormap,
+    xp_copy_bytes,
+    xprCopyWindow
+};
+
+
+/*
+ * Initialize XPR implementation
+ */
+Bool
+xprInit(ScreenPtr pScreen)
+{
+    RootlessInit(pScreen, &xprRootlessProcs);
+
+    rootless_CopyBytes_threshold = xp_copy_bytes_threshold;
+    rootless_CopyWindow_threshold = xp_scroll_area_threshold;
+
+    assert((window_hash = x_hash_table_new(NULL, NULL, NULL, NULL)));
+#ifdef HAVE_LIBDISPATCH
+    assert((window_hash_serial_q = dispatch_queue_create(BUNDLE_ID_PREFIX".X11.xpr_window_hash", NULL)));
+#else
+    assert(0 == pthread_rwlock_init(&window_hash_rwlock, NULL));
+#endif
+    
+    return TRUE;
+}
+
+
+/*
+ * Given the id of a physical window, try to find the top-level (or root)
+ * X window that it represents.
+ */
+WindowPtr
+xprGetXWindow(xp_window_id wid)
+{
+#ifdef HAVE_LIBDISPATCH
+    RootlessWindowRec *winRec __block;
+    dispatch_sync(window_hash_serial_q, ^{
+        winRec = x_hash_table_lookup(window_hash, x_cvt_uint_to_vptr(wid), NULL);
+    });
+#else
+    RootlessWindowRec *winRec;
+    pthread_rwlock_rdlock(&window_hash_rwlock);
+    winRec = x_hash_table_lookup(window_hash, x_cvt_uint_to_vptr(wid), NULL);
+    pthread_rwlock_unlock(&window_hash_rwlock);
+#endif
+
+    return winRec != NULL ? winRec->win : NULL;
+}
+
+/*
+ * The windowNumber is an AppKit window number. Returns TRUE if xpr is
+ * displaying a window with that number.
+ */
+Bool
+xprIsX11Window(int windowNumber)
+{
+    Bool ret;
+    xp_window_id wid;
+
+    if (xp_lookup_native_window(windowNumber, &wid))
+        ret = xprGetXWindow(wid) != NULL;
+    else
+        ret = FALSE;
+
+    return ret;
+}
+
+
+/*
+ * xprHideWindows
+ *  Hide or unhide all top level windows. This is called for application hide/
+ *  unhide events if the window manager is not Apple-WM aware. Xplugin windows
+ *  do not hide or unhide themselves.
+ */
+void
+xprHideWindows(Bool hide)
+{
+    int screen;
+    WindowPtr pRoot, pWin;
+
+    for (screen = 0; screen < screenInfo.numScreens; screen++) {
+        RootlessFrameID prevWid = NULL;
+        pRoot = screenInfo.screens[screen]->root;
+
+        for (pWin = pRoot->firstChild; pWin; pWin = pWin->nextSib) {
+            RootlessWindowRec *winRec = WINREC(pWin);
+
+            if (winRec != NULL) {
+                if (hide) {
+                    xprUnmapFrame(winRec->wid);
+                } else {
+                    BoxRec box;
+
+                    xprRestackFrame(winRec->wid, prevWid);
+                    prevWid = winRec->wid;
+
+                    box.x1 = 0;
+                    box.y1 = 0;
+                    box.x2 = winRec->width;
+                    box.y2 = winRec->height;
+
+                    xprDamageRects(winRec->wid, 1, &box, 0, 0);
+                    RootlessQueueRedisplay(screenInfo.screens[screen]);
+                }
+            }
+        }
+    }
+}
+
+// XXX: identical to x_cvt_vptr_to_uint ?
+#define MAKE_WINDOW_ID(x)		((xp_window_id)((size_t)(x)))
+
+Bool no_configure_window;
+
+static inline int
+configure_window (xp_window_id id, unsigned int mask,
+                  const xp_window_changes *values)
+{
+  if (!no_configure_window)
+    return xp_configure_window (id, mask, values);
+  else
+    return XP_Success;
+}
+
+
+static
+void xprUpdateColormap(RootlessFrameID wid, ScreenPtr pScreen)
+{
+  /* This is how we tell xp that the colormap may have changed. */
+  xp_window_changes wc;
+  wc.colormap = xprColormapCallback;
+  wc.colormap_data = pScreen;
+
+  configure_window(MAKE_WINDOW_ID(wid), XP_COLORMAP, &wc);
+}
+
+static
+void xprHideWindow(RootlessFrameID wid)
+{
+  xp_window_changes wc;
+  wc.stack_mode = XP_UNMAPPED;
+  wc.sibling = 0;
+  configure_window(MAKE_WINDOW_ID(wid), XP_STACKING, &wc);
+}