Synchronised line endinge with release branch

1 files changed, 585 insertions, 585 deletions

diff --git a/xorg-server/hw/xquartz/quartzRandR.c b/xorg-server/hw/xquartz/quartzRandR.c
index 651352b79..98b382d65 100644
--- a/xorg-server/hw/xquartz/quartzRandR.c
+++ b/xorg-server/hw/xquartz/quartzRandR.c
@@ -1,585 +1,585 @@
-/*

- * Quartz-specific support for the XRandR extension

- *

- * Copyright (c) 2001-2004 Greg Parker and Torrey T. Lyons,

- *               2010      Jan Hauffa.

- *               2010-2011 Apple 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.

- */

-

-#include "sanitizedCarbon.h"

-

-#ifdef HAVE_DIX_CONFIG_H

-#include <dix-config.h>

-#endif

-

-#include "quartzCommon.h"

-#include "quartzRandR.h"

-#include "quartz.h"

-#include "darwin.h"

-

-#include "X11Application.h"

-

-#include <AvailabilityMacros.h>

-

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

-#include <randrstr.h>

-#include <IOKit/graphics/IOGraphicsTypes.h>

-

-/* TODO: UGLY, find a better way!

- * We want to ignore kXquartzDisplayChanged which are generated by us

- */

-static Bool ignore_next_fake_mode_update = FALSE;

-

-#define FAKE_REFRESH_ROOTLESS 1

-#define FAKE_REFRESH_FULLSCREEN 2

-

-#define DEFAULT_REFRESH  60

-#define kDisplayModeUsableFlags  (kDisplayModeValidFlag | kDisplayModeSafeFlag)

-

-#define CALLBACK_SUCCESS 0

-#define CALLBACK_CONTINUE 1

-#define CALLBACK_ERROR -1

-

-typedef int (*QuartzModeCallback)

-    (ScreenPtr, QuartzModeInfoPtr, void *);

-

-#if MAC_OS_X_VERSION_MIN_REQUIRED < 1060

-

-static long getDictLong (CFDictionaryRef dictRef, CFStringRef key) {

-    long value;

-

-    CFNumberRef numRef = (CFNumberRef) CFDictionaryGetValue(dictRef, key);

-    if (!numRef)

-        return 0;

-

-    if (!CFNumberGetValue(numRef, kCFNumberLongType, &value))

-        return 0;

-    return value;

-}

-

-static double getDictDouble (CFDictionaryRef dictRef, CFStringRef key) {

-    double value;

-

-    CFNumberRef numRef = (CFNumberRef) CFDictionaryGetValue(dictRef, key);

-    if (!numRef)

-        return 0.0;

-

-    if (!CFNumberGetValue(numRef, kCFNumberDoubleType, &value))

-        return 0.0;

-    return value;

-}

-

-static void QuartzRandRGetModeInfo (CFDictionaryRef modeRef,

-                                    QuartzModeInfoPtr pMode) {

-    pMode->width = (size_t) getDictLong(modeRef, kCGDisplayWidth);

-    pMode->height = (size_t) getDictLong(modeRef, kCGDisplayHeight);

-    pMode->refresh = (int)(getDictDouble(modeRef, kCGDisplayRefreshRate) + 0.5);

-    if (pMode->refresh == 0)

-        pMode->refresh = DEFAULT_REFRESH;

-    pMode->ref = NULL;

-    pMode->pSize = NULL;

-}

-

-static Bool QuartzRandRCopyCurrentModeInfo (CGDirectDisplayID screenId,

-                                           QuartzModeInfoPtr pMode) {

-    CFDictionaryRef curModeRef = CGDisplayCurrentMode(screenId);

-    if (!curModeRef)

-        return FALSE;

-

-    QuartzRandRGetModeInfo(curModeRef, pMode);

-    pMode->ref = (void *)curModeRef;

-    CFRetain(pMode->ref);

-    return TRUE;

-}

-

-static Bool QuartzRandRSetCGMode (CGDirectDisplayID screenId,

-                                QuartzModeInfoPtr pMode) {

-    CFDictionaryRef modeRef = (CFDictionaryRef) pMode->ref;

-    return (CGDisplaySwitchToMode(screenId, modeRef) == kCGErrorSuccess);

-}

-

-static Bool QuartzRandREnumerateModes (ScreenPtr pScreen,

-                                       QuartzModeCallback callback,

-                                       void *data) {

-    Bool retval = FALSE;

-    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);

-

-    /* Just an 800x600 fallback if we have no attached heads */

-    if(pQuartzScreen->displayIDs) {

-        CFDictionaryRef curModeRef, modeRef;

-        long curBpp;

-        CFArrayRef modes;

-        QuartzModeInfo modeInfo;

-        int i;

-        CGDirectDisplayID screenId = pQuartzScreen->displayIDs[0];

-

-        curModeRef = CGDisplayCurrentMode(screenId);

-        if (!curModeRef)

-            return FALSE;

-        curBpp = getDictLong(curModeRef, kCGDisplayBitsPerPixel);

-

-        modes = CGDisplayAvailableModes(screenId);

-        if (!modes)

-            return FALSE;

-        for (i = 0; i < CFArrayGetCount(modes); i++) {

-            int cb;

-            modeRef = (CFDictionaryRef) CFArrayGetValueAtIndex(modes, i);

-

-            /* Skip modes that are not usable on the current display or have a

-               different pixel encoding than the current mode. */

-            if (((unsigned long) getDictLong(modeRef, kCGDisplayIOFlags) &

-                 kDisplayModeUsableFlags) != kDisplayModeUsableFlags)

-                continue;

-            if (getDictLong(modeRef, kCGDisplayBitsPerPixel) != curBpp)

-                continue;

-

-            QuartzRandRGetModeInfo(modeRef, &modeInfo);

-            modeInfo.ref = (void *)modeRef;

-            cb = callback(pScreen, &modeInfo, data);

-            if (cb == CALLBACK_CONTINUE)

-                retval = TRUE;

-            else if (cb == CALLBACK_SUCCESS)

-                return TRUE;

-            else if (cb == CALLBACK_ERROR)

-                return FALSE;

-        }

-    }

-

-    switch(callback(pScreen, &pQuartzScreen->rootlessMode, data)) {

-        case CALLBACK_SUCCESS:

-            return TRUE;

-        case CALLBACK_ERROR:

-            return FALSE;

-        case CALLBACK_CONTINUE:

-            retval = TRUE;

-        default:

-            break;

-    }

-

-    switch(callback(pScreen, &pQuartzScreen->fullscreenMode, data)) {

-        case CALLBACK_SUCCESS:

-            return TRUE;

-        case CALLBACK_ERROR:

-            return FALSE;

-        case CALLBACK_CONTINUE:

-            retval = TRUE;

-        default:

-            break;

-    }

-

-    return retval;

-}

-

-#else /* we have the new CG APIs from Snow Leopard */

-

-static void QuartzRandRGetModeInfo (CGDisplayModeRef modeRef,

-                                    QuartzModeInfoPtr pMode) {

-    pMode->width = CGDisplayModeGetWidth(modeRef);

-    pMode->height = CGDisplayModeGetHeight(modeRef);

-    pMode->refresh = (int) (CGDisplayModeGetRefreshRate(modeRef) + 0.5);

-    if (pMode->refresh == 0)

-        pMode->refresh = DEFAULT_REFRESH;

-    pMode->ref = NULL;

-    pMode->pSize = NULL;

-}

-

-static Bool QuartzRandRCopyCurrentModeInfo (CGDirectDisplayID screenId,

-                                            QuartzModeInfoPtr pMode) {

-    CGDisplayModeRef curModeRef = CGDisplayCopyDisplayMode(screenId);

-    if (!curModeRef)

-        return FALSE;

-

-    QuartzRandRGetModeInfo(curModeRef, pMode);

-    pMode->ref = curModeRef;

-    return TRUE;

-}

-

-static Bool QuartzRandRSetCGMode (CGDirectDisplayID screenId,

-                                QuartzModeInfoPtr pMode) {

-    CGDisplayModeRef modeRef = (CGDisplayModeRef) pMode->ref;

-    if (!modeRef)

-        return FALSE;

-

-    return (CGDisplaySetDisplayMode(screenId, modeRef, NULL) == kCGErrorSuccess);

-}

-

-static Bool QuartzRandREnumerateModes (ScreenPtr pScreen,

-                                       QuartzModeCallback callback,

-                                       void *data) {

-    Bool retval = FALSE;

-    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);

-

-    /* Just an 800x600 fallback if we have no attached heads */

-    if(pQuartzScreen->displayIDs) {

-        CGDisplayModeRef curModeRef, modeRef;

-        CFStringRef curPixelEnc, pixelEnc;

-        CFComparisonResult pixelEncEqual;

-        CFArrayRef modes;

-        QuartzModeInfo modeInfo;

-        int i;

-        CGDirectDisplayID screenId = pQuartzScreen->displayIDs[0];

-

-        curModeRef = CGDisplayCopyDisplayMode(screenId);

-        if (!curModeRef)

-            return FALSE;

-        curPixelEnc = CGDisplayModeCopyPixelEncoding(curModeRef);

-        CGDisplayModeRelease(curModeRef);

-

-        modes = CGDisplayCopyAllDisplayModes(screenId, NULL);

-        if (!modes) {

-            CFRelease(curPixelEnc);

-            return FALSE;

-        }

-        for (i = 0; i < CFArrayGetCount(modes); i++) {

-            int cb;

-            modeRef = (CGDisplayModeRef) CFArrayGetValueAtIndex(modes, i);

-

-            /* Skip modes that are not usable on the current display or have a

-               different pixel encoding than the current mode. */

-            if ((CGDisplayModeGetIOFlags(modeRef) & kDisplayModeUsableFlags) !=

-                kDisplayModeUsableFlags)

-                continue;

-            pixelEnc = CGDisplayModeCopyPixelEncoding(modeRef);

-            pixelEncEqual = CFStringCompare(pixelEnc, curPixelEnc, 0);

-            CFRelease(pixelEnc);

-            if (pixelEncEqual != kCFCompareEqualTo)

-                continue;

-

-            QuartzRandRGetModeInfo(modeRef, &modeInfo);

-            modeInfo.ref = modeRef;

-            cb = callback(pScreen, &modeInfo, data);

-            if (cb == CALLBACK_CONTINUE) {

-                retval = TRUE;

-            } else if (cb == CALLBACK_SUCCESS) {

-                CFRelease(modes);

-                CFRelease(curPixelEnc);

-                return TRUE;

-            } else if (cb == CALLBACK_ERROR) {

-                CFRelease(modes);

-                CFRelease(curPixelEnc);

-                return FALSE;

-            }

-        }

-

-        CFRelease(modes);

-        CFRelease(curPixelEnc);

-    }

-

-    switch(callback(pScreen, &pQuartzScreen->rootlessMode, data)) {

-        case CALLBACK_SUCCESS:

-            return TRUE;

-        case CALLBACK_ERROR:

-            return FALSE;

-        case CALLBACK_CONTINUE:

-            retval = TRUE;

-        default:

-            break;

-    }

-

-    switch(callback(pScreen, &pQuartzScreen->fullscreenMode, data)) {

-        case CALLBACK_SUCCESS:

-            return TRUE;

-        case CALLBACK_ERROR:

-            return FALSE;

-        case CALLBACK_CONTINUE:

-            retval = TRUE;

-        default:

-            break;

-    }

-

-    return retval;

-}

-

-#endif  /* Snow Leopard CoreGraphics APIs */

-

-

-static Bool QuartzRandRModesEqual (QuartzModeInfoPtr pMode1,

-                                   QuartzModeInfoPtr pMode2) {

-    return (pMode1->width == pMode2->width) &&

-           (pMode1->height == pMode2->height) &&

-           (pMode1->refresh == pMode2->refresh);

-}

-

-static Bool QuartzRandRRegisterMode (ScreenPtr pScreen,

-                                     QuartzModeInfoPtr pMode) {

-    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);

-    Bool isCurrentMode = QuartzRandRModesEqual(&pQuartzScreen->currentMode, pMode);

-

-    /* TODO: DPI */

-    pMode->pSize = RRRegisterSize(pScreen, pMode->width, pMode->height, pScreen->mmWidth, pScreen->mmHeight);

-    if (pMode->pSize) {

-        //DEBUG_LOG("registering: %d x %d @ %d %s\n", (int)pMode->width, (int)pMode->height, (int)pMode->refresh, isCurrentMode ? "*" : "");

-        RRRegisterRate(pScreen, pMode->pSize, pMode->refresh);

-

-        if (isCurrentMode)

-            RRSetCurrentConfig(pScreen, RR_Rotate_0, pMode->refresh, pMode->pSize);

-

-        return TRUE;

-    }

-    return FALSE;

-}

-

-static int QuartzRandRRegisterModeCallback (ScreenPtr pScreen,

-                                        QuartzModeInfoPtr pMode,

-                                        void *data __unused) {

-    if(QuartzRandRRegisterMode(pScreen, pMode)) {

-        return CALLBACK_CONTINUE;

-    } else {

-        return CALLBACK_ERROR;

-    }

-}

-

-static Bool QuartzRandRSetMode(ScreenPtr pScreen, QuartzModeInfoPtr pMode, BOOL doRegister) {

-    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);

-    Bool captureDisplay = (pMode->refresh != FAKE_REFRESH_FULLSCREEN && pMode->refresh != FAKE_REFRESH_ROOTLESS);

-    CGDirectDisplayID screenId;

-

-    if(pQuartzScreen->displayIDs == NULL)

-        return FALSE;

-

-    screenId = pQuartzScreen->displayIDs[0];

-    if(XQuartzShieldingWindowLevel == 0 && captureDisplay) {

-        if(!X11ApplicationCanEnterRandR())

-            return FALSE;

-        CGCaptureAllDisplays();

-        XQuartzShieldingWindowLevel = CGShieldingWindowLevel(); // 2147483630

-        DEBUG_LOG("Display captured.  ShieldWindowID: %u, Shield level: %d\n",

-                  CGShieldingWindowID(screenId), XQuartzShieldingWindowLevel);

-    }

-

-    if (pQuartzScreen->currentMode.ref && CFEqual(pMode->ref, pQuartzScreen->currentMode.ref)) {

-        DEBUG_LOG("Requested RandR resolution matches current CG mode\n");

-    } if (QuartzRandRSetCGMode(screenId, pMode)) {

-        ignore_next_fake_mode_update = TRUE;

-    } else {

-        DEBUG_LOG("Error while requesting CG resolution change.\n");

-        return FALSE;

-    }

-

-    /* If the client requested the fake rootless mode, switch to rootless.

-     * Otherwise, force fullscreen mode.

-     */

-    QuartzSetRootless(pMode->refresh == FAKE_REFRESH_ROOTLESS);

-    if (pMode->refresh != FAKE_REFRESH_ROOTLESS) {

-        QuartzShowFullscreen(TRUE);

-    }

-

-    if(pQuartzScreen->currentMode.ref)

-        CFRelease(pQuartzScreen->currentMode.ref);

-    pQuartzScreen->currentMode = *pMode;

-    if(pQuartzScreen->currentMode.ref)

-        CFRetain(pQuartzScreen->currentMode.ref);

-    

-    if(XQuartzShieldingWindowLevel != 0 && !captureDisplay) {

-        CGReleaseAllDisplays();

-        XQuartzShieldingWindowLevel = 0;

-    }

-

-    return TRUE;

-}

-

-static int QuartzRandRSetModeCallback (ScreenPtr pScreen,

-                                       QuartzModeInfoPtr pMode,

-                                       void *data) {

-    QuartzModeInfoPtr pReqMode = (QuartzModeInfoPtr) data;

-	

-    if (!QuartzRandRModesEqual(pMode, pReqMode))

-        return CALLBACK_CONTINUE;  /* continue enumeration */

-

-    DEBUG_LOG("Found a match for requested RandR resolution (%dx%d@%d).\n", (int)pMode->width, (int)pMode->height, (int)pMode->refresh);

-

-    if(QuartzRandRSetMode(pScreen, pMode, FALSE))

-        return CALLBACK_SUCCESS;

-    else

-        return CALLBACK_ERROR;

-}

-

-static Bool QuartzRandRGetInfo (ScreenPtr pScreen, Rotation *rotations) {

-    *rotations = RR_Rotate_0;  /* TODO: support rotation */

-

-    return QuartzRandREnumerateModes(pScreen, QuartzRandRRegisterModeCallback, NULL);

-}

-

-static Bool QuartzRandRSetConfig (ScreenPtr           pScreen,

-                                  Rotation            randr,

-                                  int                 rate,

-                                  RRScreenSizePtr     pSize) {

-    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);

-    QuartzModeInfo reqMode;

-

-    reqMode.width = pSize->width;

-    reqMode.height = pSize->height;

-    reqMode.refresh = rate;

-

-    /* Do not switch modes if requested mode is equal to current mode. */

-    if (QuartzRandRModesEqual(&reqMode, &pQuartzScreen->currentMode))

-        return TRUE;

-        

-    if (QuartzRandREnumerateModes(pScreen, QuartzRandRSetModeCallback, &reqMode)) {

-        return TRUE;

-    }

-    

-    DEBUG_LOG("Unable to find a matching config: %d x %d @ %d\n", (int)reqMode.width, (int)reqMode.height, (int)reqMode.refresh);

-    return FALSE;

-}

-

-static Bool _QuartzRandRUpdateFakeModes (ScreenPtr pScreen) {

-    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);

-    QuartzModeInfo activeMode;

-

-    if(pQuartzScreen->displayCount > 0) {

-        if(!QuartzRandRCopyCurrentModeInfo(pQuartzScreen->displayIDs[0], &activeMode)) {

-            ErrorF("Unable to determine current display mode.\n");

-            return FALSE;

-        }

-    } else {

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

-        activeMode.width = 800;

-        activeMode.height = 600;

-        activeMode.refresh = 60;

-    }

-

-    if(pQuartzScreen->fullscreenMode.ref)

-        CFRelease(pQuartzScreen->fullscreenMode.ref);

-    if(pQuartzScreen->currentMode.ref)

-        CFRelease(pQuartzScreen->currentMode.ref);

-

-    if(pQuartzScreen->displayCount > 1) {

-        activeMode.width = pScreen->width;

-        activeMode.height = pScreen->height;

-        if(XQuartzIsRootless)

-            activeMode.height += aquaMenuBarHeight;

-    }

-

-    pQuartzScreen->fullscreenMode = activeMode; 

-    pQuartzScreen->fullscreenMode.refresh = FAKE_REFRESH_FULLSCREEN;

-

-    pQuartzScreen->rootlessMode = activeMode;

-    pQuartzScreen->rootlessMode.refresh = FAKE_REFRESH_ROOTLESS;

-    pQuartzScreen->rootlessMode.height -= aquaMenuBarHeight;

-

-    if(XQuartzIsRootless) {

-        pQuartzScreen->currentMode = pQuartzScreen->rootlessMode;

-    } else {

-        pQuartzScreen->currentMode = pQuartzScreen->fullscreenMode;

-    }

-

-    /* This extra retain is for currentMode's copy.

-     * fullscreen and rootless share a retain.

-     */

-    if(pQuartzScreen->currentMode.ref)

-        CFRetain(pQuartzScreen->currentMode.ref);

-    

-    DEBUG_LOG("rootlessMode: %d x %d\n", (int)pQuartzScreen->rootlessMode.width, (int)pQuartzScreen->rootlessMode.height);

-    DEBUG_LOG("fullscreenMode: %d x %d\n", (int)pQuartzScreen->fullscreenMode.width, (int)pQuartzScreen->fullscreenMode.height);

-    DEBUG_LOG("currentMode: %d x %d\n", (int)pQuartzScreen->currentMode.width, (int)pQuartzScreen->currentMode.height);

-    

-    return TRUE;

-}

-

-Bool QuartzRandRUpdateFakeModes (BOOL force_update) {

-    ScreenPtr pScreen = screenInfo.screens[0];

-    

-    if(ignore_next_fake_mode_update) {

-        DEBUG_LOG("Ignoring update request caused by RandR resolution change.\n");

-        ignore_next_fake_mode_update = FALSE;

-        return TRUE;

-    }

-    

-    if(!_QuartzRandRUpdateFakeModes(pScreen))

-        return FALSE;

-    

-    if(force_update)

-        RRGetInfo(pScreen, TRUE);

-

-    return TRUE;

-}

-

-Bool QuartzRandRInit (ScreenPtr pScreen) {

-    rrScrPrivPtr    pScrPriv;

-    

-    if (!RRScreenInit (pScreen)) return FALSE;

-    if (!_QuartzRandRUpdateFakeModes (pScreen)) return FALSE;

-

-    pScrPriv = rrGetScrPriv(pScreen);

-    pScrPriv->rrGetInfo = QuartzRandRGetInfo;

-    pScrPriv->rrSetConfig = QuartzRandRSetConfig;

-    return TRUE;

-}

-

-void QuartzRandRSetFakeRootless (void) {

-    int i;

-    

-    DEBUG_LOG("QuartzRandRSetFakeRootless called.\n");

-    

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

-        ScreenPtr pScreen = screenInfo.screens[i];

-        QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);

-

-        QuartzRandRSetMode(pScreen, &pQuartzScreen->rootlessMode, TRUE);

-    }

-}

-

-void QuartzRandRSetFakeFullscreen (BOOL state) {

-    int i;

-

-    DEBUG_LOG("QuartzRandRSetFakeFullscreen called.\n");

-    

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

-        ScreenPtr pScreen = screenInfo.screens[i];

-        QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);

-

-        QuartzRandRSetMode(pScreen, &pQuartzScreen->fullscreenMode, TRUE);

-    }

-    

-    QuartzShowFullscreen(state);

-}

-

-/* Toggle fullscreen mode.  If "fake" fullscreen is the current mode,

- * this will just show/hide the X11 windows.  If we are in a RandR fullscreen

- * mode, this will toggles us to the default fake mode and hide windows if

- * it is fullscreen

- */

-void QuartzRandRToggleFullscreen (void) {

-    ScreenPtr pScreen = screenInfo.screens[0];

-    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);

-

-    if (pQuartzScreen->currentMode.ref == NULL) {

-        ErrorF("Ignoring QuartzRandRToggleFullscreen because don't have a current mode set.\n");

-    } else if (pQuartzScreen->currentMode.refresh == FAKE_REFRESH_ROOTLESS) {

-        ErrorF("Ignoring QuartzRandRToggleFullscreen because we are in rootless mode.\n");

-    } else if (pQuartzScreen->currentMode.refresh == FAKE_REFRESH_FULLSCREEN) {

-        /* Legacy fullscreen mode.  Hide/Show */

-        QuartzShowFullscreen(!XQuartzFullscreenVisible);

-    } else {

-        /* RandR fullscreen mode.  Return to default mode and hide if it is fullscreen. */

-        if(XQuartzRootlessDefault) {

-            QuartzRandRSetFakeRootless();

-        } else {

-            QuartzRandRSetFakeFullscreen(FALSE);

-        }

-    }    

-}

+/*
+ * Quartz-specific support for the XRandR extension
+ *
+ * Copyright (c) 2001-2004 Greg Parker and Torrey T. Lyons,
+ *               2010      Jan Hauffa.
+ *               2010-2011 Apple 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.
+ */
+
+#include "sanitizedCarbon.h"
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "quartzCommon.h"
+#include "quartzRandR.h"
+#include "quartz.h"
+#include "darwin.h"
+
+#include "X11Application.h"
+
+#include <AvailabilityMacros.h>
+
+#include <X11/extensions/randr.h>
+#include <randrstr.h>
+#include <IOKit/graphics/IOGraphicsTypes.h>
+
+/* TODO: UGLY, find a better way!
+ * We want to ignore kXquartzDisplayChanged which are generated by us
+ */
+static Bool ignore_next_fake_mode_update = FALSE;
+
+#define FAKE_REFRESH_ROOTLESS 1
+#define FAKE_REFRESH_FULLSCREEN 2
+
+#define DEFAULT_REFRESH  60
+#define kDisplayModeUsableFlags  (kDisplayModeValidFlag | kDisplayModeSafeFlag)
+
+#define CALLBACK_SUCCESS 0
+#define CALLBACK_CONTINUE 1
+#define CALLBACK_ERROR -1
+
+typedef int (*QuartzModeCallback)
+    (ScreenPtr, QuartzModeInfoPtr, void *);
+
+#if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
+
+static long getDictLong (CFDictionaryRef dictRef, CFStringRef key) {
+    long value;
+
+    CFNumberRef numRef = (CFNumberRef) CFDictionaryGetValue(dictRef, key);
+    if (!numRef)
+        return 0;
+
+    if (!CFNumberGetValue(numRef, kCFNumberLongType, &value))
+        return 0;
+    return value;
+}
+
+static double getDictDouble (CFDictionaryRef dictRef, CFStringRef key) {
+    double value;
+
+    CFNumberRef numRef = (CFNumberRef) CFDictionaryGetValue(dictRef, key);
+    if (!numRef)
+        return 0.0;
+
+    if (!CFNumberGetValue(numRef, kCFNumberDoubleType, &value))
+        return 0.0;
+    return value;
+}
+
+static void QuartzRandRGetModeInfo (CFDictionaryRef modeRef,
+                                    QuartzModeInfoPtr pMode) {
+    pMode->width = (size_t) getDictLong(modeRef, kCGDisplayWidth);
+    pMode->height = (size_t) getDictLong(modeRef, kCGDisplayHeight);
+    pMode->refresh = (int)(getDictDouble(modeRef, kCGDisplayRefreshRate) + 0.5);
+    if (pMode->refresh == 0)
+        pMode->refresh = DEFAULT_REFRESH;
+    pMode->ref = NULL;
+    pMode->pSize = NULL;
+}
+
+static Bool QuartzRandRCopyCurrentModeInfo (CGDirectDisplayID screenId,
+                                           QuartzModeInfoPtr pMode) {
+    CFDictionaryRef curModeRef = CGDisplayCurrentMode(screenId);
+    if (!curModeRef)
+        return FALSE;
+
+    QuartzRandRGetModeInfo(curModeRef, pMode);
+    pMode->ref = (void *)curModeRef;
+    CFRetain(pMode->ref);
+    return TRUE;
+}
+
+static Bool QuartzRandRSetCGMode (CGDirectDisplayID screenId,
+                                QuartzModeInfoPtr pMode) {
+    CFDictionaryRef modeRef = (CFDictionaryRef) pMode->ref;
+    return (CGDisplaySwitchToMode(screenId, modeRef) == kCGErrorSuccess);
+}
+
+static Bool QuartzRandREnumerateModes (ScreenPtr pScreen,
+                                       QuartzModeCallback callback,
+                                       void *data) {
+    Bool retval = FALSE;
+    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
+
+    /* Just an 800x600 fallback if we have no attached heads */
+    if(pQuartzScreen->displayIDs) {
+        CFDictionaryRef curModeRef, modeRef;
+        long curBpp;
+        CFArrayRef modes;
+        QuartzModeInfo modeInfo;
+        int i;
+        CGDirectDisplayID screenId = pQuartzScreen->displayIDs[0];
+
+        curModeRef = CGDisplayCurrentMode(screenId);
+        if (!curModeRef)
+            return FALSE;
+        curBpp = getDictLong(curModeRef, kCGDisplayBitsPerPixel);
+
+        modes = CGDisplayAvailableModes(screenId);
+        if (!modes)
+            return FALSE;
+        for (i = 0; i < CFArrayGetCount(modes); i++) {
+            int cb;
+            modeRef = (CFDictionaryRef) CFArrayGetValueAtIndex(modes, i);
+
+            /* Skip modes that are not usable on the current display or have a
+               different pixel encoding than the current mode. */
+            if (((unsigned long) getDictLong(modeRef, kCGDisplayIOFlags) &
+                 kDisplayModeUsableFlags) != kDisplayModeUsableFlags)
+                continue;
+            if (getDictLong(modeRef, kCGDisplayBitsPerPixel) != curBpp)
+                continue;
+
+            QuartzRandRGetModeInfo(modeRef, &modeInfo);
+            modeInfo.ref = (void *)modeRef;
+            cb = callback(pScreen, &modeInfo, data);
+            if (cb == CALLBACK_CONTINUE)
+                retval = TRUE;
+            else if (cb == CALLBACK_SUCCESS)
+                return TRUE;
+            else if (cb == CALLBACK_ERROR)
+                return FALSE;
+        }
+    }
+
+    switch(callback(pScreen, &pQuartzScreen->rootlessMode, data)) {
+        case CALLBACK_SUCCESS:
+            return TRUE;
+        case CALLBACK_ERROR:
+            return FALSE;
+        case CALLBACK_CONTINUE:
+            retval = TRUE;
+        default:
+            break;
+    }
+
+    switch(callback(pScreen, &pQuartzScreen->fullscreenMode, data)) {
+        case CALLBACK_SUCCESS:
+            return TRUE;
+        case CALLBACK_ERROR:
+            return FALSE;
+        case CALLBACK_CONTINUE:
+            retval = TRUE;
+        default:
+            break;
+    }
+
+    return retval;
+}
+
+#else /* we have the new CG APIs from Snow Leopard */
+
+static void QuartzRandRGetModeInfo (CGDisplayModeRef modeRef,
+                                    QuartzModeInfoPtr pMode) {
+    pMode->width = CGDisplayModeGetWidth(modeRef);
+    pMode->height = CGDisplayModeGetHeight(modeRef);
+    pMode->refresh = (int) (CGDisplayModeGetRefreshRate(modeRef) + 0.5);
+    if (pMode->refresh == 0)
+        pMode->refresh = DEFAULT_REFRESH;
+    pMode->ref = NULL;
+    pMode->pSize = NULL;
+}
+
+static Bool QuartzRandRCopyCurrentModeInfo (CGDirectDisplayID screenId,
+                                            QuartzModeInfoPtr pMode) {
+    CGDisplayModeRef curModeRef = CGDisplayCopyDisplayMode(screenId);
+    if (!curModeRef)
+        return FALSE;
+
+    QuartzRandRGetModeInfo(curModeRef, pMode);
+    pMode->ref = curModeRef;
+    return TRUE;
+}
+
+static Bool QuartzRandRSetCGMode (CGDirectDisplayID screenId,
+                                QuartzModeInfoPtr pMode) {
+    CGDisplayModeRef modeRef = (CGDisplayModeRef) pMode->ref;
+    if (!modeRef)
+        return FALSE;
+
+    return (CGDisplaySetDisplayMode(screenId, modeRef, NULL) == kCGErrorSuccess);
+}
+
+static Bool QuartzRandREnumerateModes (ScreenPtr pScreen,
+                                       QuartzModeCallback callback,
+                                       void *data) {
+    Bool retval = FALSE;
+    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
+
+    /* Just an 800x600 fallback if we have no attached heads */
+    if(pQuartzScreen->displayIDs) {
+        CGDisplayModeRef curModeRef, modeRef;
+        CFStringRef curPixelEnc, pixelEnc;
+        CFComparisonResult pixelEncEqual;
+        CFArrayRef modes;
+        QuartzModeInfo modeInfo;
+        int i;
+        CGDirectDisplayID screenId = pQuartzScreen->displayIDs[0];
+
+        curModeRef = CGDisplayCopyDisplayMode(screenId);
+        if (!curModeRef)
+            return FALSE;
+        curPixelEnc = CGDisplayModeCopyPixelEncoding(curModeRef);
+        CGDisplayModeRelease(curModeRef);
+
+        modes = CGDisplayCopyAllDisplayModes(screenId, NULL);
+        if (!modes) {
+            CFRelease(curPixelEnc);
+            return FALSE;
+        }
+        for (i = 0; i < CFArrayGetCount(modes); i++) {
+            int cb;
+            modeRef = (CGDisplayModeRef) CFArrayGetValueAtIndex(modes, i);
+
+            /* Skip modes that are not usable on the current display or have a
+               different pixel encoding than the current mode. */
+            if ((CGDisplayModeGetIOFlags(modeRef) & kDisplayModeUsableFlags) !=
+                kDisplayModeUsableFlags)
+                continue;
+            pixelEnc = CGDisplayModeCopyPixelEncoding(modeRef);
+            pixelEncEqual = CFStringCompare(pixelEnc, curPixelEnc, 0);
+            CFRelease(pixelEnc);
+            if (pixelEncEqual != kCFCompareEqualTo)
+                continue;
+
+            QuartzRandRGetModeInfo(modeRef, &modeInfo);
+            modeInfo.ref = modeRef;
+            cb = callback(pScreen, &modeInfo, data);
+            if (cb == CALLBACK_CONTINUE) {
+                retval = TRUE;
+            } else if (cb == CALLBACK_SUCCESS) {
+                CFRelease(modes);
+                CFRelease(curPixelEnc);
+                return TRUE;
+            } else if (cb == CALLBACK_ERROR) {
+                CFRelease(modes);
+                CFRelease(curPixelEnc);
+                return FALSE;
+            }
+        }
+
+        CFRelease(modes);
+        CFRelease(curPixelEnc);
+    }
+
+    switch(callback(pScreen, &pQuartzScreen->rootlessMode, data)) {
+        case CALLBACK_SUCCESS:
+            return TRUE;
+        case CALLBACK_ERROR:
+            return FALSE;
+        case CALLBACK_CONTINUE:
+            retval = TRUE;
+        default:
+            break;
+    }
+
+    switch(callback(pScreen, &pQuartzScreen->fullscreenMode, data)) {
+        case CALLBACK_SUCCESS:
+            return TRUE;
+        case CALLBACK_ERROR:
+            return FALSE;
+        case CALLBACK_CONTINUE:
+            retval = TRUE;
+        default:
+            break;
+    }
+
+    return retval;
+}
+
+#endif  /* Snow Leopard CoreGraphics APIs */
+
+
+static Bool QuartzRandRModesEqual (QuartzModeInfoPtr pMode1,
+                                   QuartzModeInfoPtr pMode2) {
+    return (pMode1->width == pMode2->width) &&
+           (pMode1->height == pMode2->height) &&
+           (pMode1->refresh == pMode2->refresh);
+}
+
+static Bool QuartzRandRRegisterMode (ScreenPtr pScreen,
+                                     QuartzModeInfoPtr pMode) {
+    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
+    Bool isCurrentMode = QuartzRandRModesEqual(&pQuartzScreen->currentMode, pMode);
+
+    /* TODO: DPI */
+    pMode->pSize = RRRegisterSize(pScreen, pMode->width, pMode->height, pScreen->mmWidth, pScreen->mmHeight);
+    if (pMode->pSize) {
+        //DEBUG_LOG("registering: %d x %d @ %d %s\n", (int)pMode->width, (int)pMode->height, (int)pMode->refresh, isCurrentMode ? "*" : "");
+        RRRegisterRate(pScreen, pMode->pSize, pMode->refresh);
+
+        if (isCurrentMode)
+            RRSetCurrentConfig(pScreen, RR_Rotate_0, pMode->refresh, pMode->pSize);
+
+        return TRUE;
+    }
+    return FALSE;
+}
+
+static int QuartzRandRRegisterModeCallback (ScreenPtr pScreen,
+                                        QuartzModeInfoPtr pMode,
+                                        void *data __unused) {
+    if(QuartzRandRRegisterMode(pScreen, pMode)) {
+        return CALLBACK_CONTINUE;
+    } else {
+        return CALLBACK_ERROR;
+    }
+}
+
+static Bool QuartzRandRSetMode(ScreenPtr pScreen, QuartzModeInfoPtr pMode, BOOL doRegister) {
+    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
+    Bool captureDisplay = (pMode->refresh != FAKE_REFRESH_FULLSCREEN && pMode->refresh != FAKE_REFRESH_ROOTLESS);
+    CGDirectDisplayID screenId;
+
+    if(pQuartzScreen->displayIDs == NULL)
+        return FALSE;
+
+    screenId = pQuartzScreen->displayIDs[0];
+    if(XQuartzShieldingWindowLevel == 0 && captureDisplay) {
+        if(!X11ApplicationCanEnterRandR())
+            return FALSE;
+        CGCaptureAllDisplays();
+        XQuartzShieldingWindowLevel = CGShieldingWindowLevel(); // 2147483630
+        DEBUG_LOG("Display captured.  ShieldWindowID: %u, Shield level: %d\n",
+                  CGShieldingWindowID(screenId), XQuartzShieldingWindowLevel);
+    }
+
+    if (pQuartzScreen->currentMode.ref && CFEqual(pMode->ref, pQuartzScreen->currentMode.ref)) {
+        DEBUG_LOG("Requested RandR resolution matches current CG mode\n");
+    } if (QuartzRandRSetCGMode(screenId, pMode)) {
+        ignore_next_fake_mode_update = TRUE;
+    } else {
+        DEBUG_LOG("Error while requesting CG resolution change.\n");
+        return FALSE;
+    }
+
+    /* If the client requested the fake rootless mode, switch to rootless.
+     * Otherwise, force fullscreen mode.
+     */
+    QuartzSetRootless(pMode->refresh == FAKE_REFRESH_ROOTLESS);
+    if (pMode->refresh != FAKE_REFRESH_ROOTLESS) {
+        QuartzShowFullscreen(TRUE);
+    }
+
+    if(pQuartzScreen->currentMode.ref)
+        CFRelease(pQuartzScreen->currentMode.ref);
+    pQuartzScreen->currentMode = *pMode;
+    if(pQuartzScreen->currentMode.ref)
+        CFRetain(pQuartzScreen->currentMode.ref);
+    
+    if(XQuartzShieldingWindowLevel != 0 && !captureDisplay) {
+        CGReleaseAllDisplays();
+        XQuartzShieldingWindowLevel = 0;
+    }
+
+    return TRUE;
+}
+
+static int QuartzRandRSetModeCallback (ScreenPtr pScreen,
+                                       QuartzModeInfoPtr pMode,
+                                       void *data) {
+    QuartzModeInfoPtr pReqMode = (QuartzModeInfoPtr) data;
+	
+    if (!QuartzRandRModesEqual(pMode, pReqMode))
+        return CALLBACK_CONTINUE;  /* continue enumeration */
+
+    DEBUG_LOG("Found a match for requested RandR resolution (%dx%d@%d).\n", (int)pMode->width, (int)pMode->height, (int)pMode->refresh);
+
+    if(QuartzRandRSetMode(pScreen, pMode, FALSE))
+        return CALLBACK_SUCCESS;
+    else
+        return CALLBACK_ERROR;
+}
+
+static Bool QuartzRandRGetInfo (ScreenPtr pScreen, Rotation *rotations) {
+    *rotations = RR_Rotate_0;  /* TODO: support rotation */
+
+    return QuartzRandREnumerateModes(pScreen, QuartzRandRRegisterModeCallback, NULL);
+}
+
+static Bool QuartzRandRSetConfig (ScreenPtr           pScreen,
+                                  Rotation            randr,
+                                  int                 rate,
+                                  RRScreenSizePtr     pSize) {
+    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
+    QuartzModeInfo reqMode;
+
+    reqMode.width = pSize->width;
+    reqMode.height = pSize->height;
+    reqMode.refresh = rate;
+
+    /* Do not switch modes if requested mode is equal to current mode. */
+    if (QuartzRandRModesEqual(&reqMode, &pQuartzScreen->currentMode))
+        return TRUE;
+        
+    if (QuartzRandREnumerateModes(pScreen, QuartzRandRSetModeCallback, &reqMode)) {
+        return TRUE;
+    }
+    
+    DEBUG_LOG("Unable to find a matching config: %d x %d @ %d\n", (int)reqMode.width, (int)reqMode.height, (int)reqMode.refresh);
+    return FALSE;
+}
+
+static Bool _QuartzRandRUpdateFakeModes (ScreenPtr pScreen) {
+    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
+    QuartzModeInfo activeMode;
+
+    if(pQuartzScreen->displayCount > 0) {
+        if(!QuartzRandRCopyCurrentModeInfo(pQuartzScreen->displayIDs[0], &activeMode)) {
+            ErrorF("Unable to determine current display mode.\n");
+            return FALSE;
+        }
+    } else {
+        memset(&activeMode, 0, sizeof(activeMode));
+        activeMode.width = 800;
+        activeMode.height = 600;
+        activeMode.refresh = 60;
+    }
+
+    if(pQuartzScreen->fullscreenMode.ref)
+        CFRelease(pQuartzScreen->fullscreenMode.ref);
+    if(pQuartzScreen->currentMode.ref)
+        CFRelease(pQuartzScreen->currentMode.ref);
+
+    if(pQuartzScreen->displayCount > 1) {
+        activeMode.width = pScreen->width;
+        activeMode.height = pScreen->height;
+        if(XQuartzIsRootless)
+            activeMode.height += aquaMenuBarHeight;
+    }
+
+    pQuartzScreen->fullscreenMode = activeMode; 
+    pQuartzScreen->fullscreenMode.refresh = FAKE_REFRESH_FULLSCREEN;
+
+    pQuartzScreen->rootlessMode = activeMode;
+    pQuartzScreen->rootlessMode.refresh = FAKE_REFRESH_ROOTLESS;
+    pQuartzScreen->rootlessMode.height -= aquaMenuBarHeight;
+
+    if(XQuartzIsRootless) {
+        pQuartzScreen->currentMode = pQuartzScreen->rootlessMode;
+    } else {
+        pQuartzScreen->currentMode = pQuartzScreen->fullscreenMode;
+    }
+
+    /* This extra retain is for currentMode's copy.
+     * fullscreen and rootless share a retain.
+     */
+    if(pQuartzScreen->currentMode.ref)
+        CFRetain(pQuartzScreen->currentMode.ref);
+    
+    DEBUG_LOG("rootlessMode: %d x %d\n", (int)pQuartzScreen->rootlessMode.width, (int)pQuartzScreen->rootlessMode.height);
+    DEBUG_LOG("fullscreenMode: %d x %d\n", (int)pQuartzScreen->fullscreenMode.width, (int)pQuartzScreen->fullscreenMode.height);
+    DEBUG_LOG("currentMode: %d x %d\n", (int)pQuartzScreen->currentMode.width, (int)pQuartzScreen->currentMode.height);
+    
+    return TRUE;
+}
+
+Bool QuartzRandRUpdateFakeModes (BOOL force_update) {
+    ScreenPtr pScreen = screenInfo.screens[0];
+    
+    if(ignore_next_fake_mode_update) {
+        DEBUG_LOG("Ignoring update request caused by RandR resolution change.\n");
+        ignore_next_fake_mode_update = FALSE;
+        return TRUE;
+    }
+    
+    if(!_QuartzRandRUpdateFakeModes(pScreen))
+        return FALSE;
+    
+    if(force_update)
+        RRGetInfo(pScreen, TRUE);
+
+    return TRUE;
+}
+
+Bool QuartzRandRInit (ScreenPtr pScreen) {
+    rrScrPrivPtr    pScrPriv;
+    
+    if (!RRScreenInit (pScreen)) return FALSE;
+    if (!_QuartzRandRUpdateFakeModes (pScreen)) return FALSE;
+
+    pScrPriv = rrGetScrPriv(pScreen);
+    pScrPriv->rrGetInfo = QuartzRandRGetInfo;
+    pScrPriv->rrSetConfig = QuartzRandRSetConfig;
+    return TRUE;
+}
+
+void QuartzRandRSetFakeRootless (void) {
+    int i;
+    
+    DEBUG_LOG("QuartzRandRSetFakeRootless called.\n");
+    
+    for (i=0; i < screenInfo.numScreens; i++) {
+        ScreenPtr pScreen = screenInfo.screens[i];
+        QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
+
+        QuartzRandRSetMode(pScreen, &pQuartzScreen->rootlessMode, TRUE);
+    }
+}
+
+void QuartzRandRSetFakeFullscreen (BOOL state) {
+    int i;
+
+    DEBUG_LOG("QuartzRandRSetFakeFullscreen called.\n");
+    
+    for (i=0; i < screenInfo.numScreens; i++) {
+        ScreenPtr pScreen = screenInfo.screens[i];
+        QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
+
+        QuartzRandRSetMode(pScreen, &pQuartzScreen->fullscreenMode, TRUE);
+    }
+    
+    QuartzShowFullscreen(state);
+}
+
+/* Toggle fullscreen mode.  If "fake" fullscreen is the current mode,
+ * this will just show/hide the X11 windows.  If we are in a RandR fullscreen
+ * mode, this will toggles us to the default fake mode and hide windows if
+ * it is fullscreen
+ */
+void QuartzRandRToggleFullscreen (void) {
+    ScreenPtr pScreen = screenInfo.screens[0];
+    QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
+
+    if (pQuartzScreen->currentMode.ref == NULL) {
+        ErrorF("Ignoring QuartzRandRToggleFullscreen because don't have a current mode set.\n");
+    } else if (pQuartzScreen->currentMode.refresh == FAKE_REFRESH_ROOTLESS) {
+        ErrorF("Ignoring QuartzRandRToggleFullscreen because we are in rootless mode.\n");
+    } else if (pQuartzScreen->currentMode.refresh == FAKE_REFRESH_FULLSCREEN) {
+        /* Legacy fullscreen mode.  Hide/Show */
+        QuartzShowFullscreen(!XQuartzFullscreenVisible);
+    } else {
+        /* RandR fullscreen mode.  Return to default mode and hide if it is fullscreen. */
+        if(XQuartzRootlessDefault) {
+            QuartzRandRSetFakeRootless();
+        } else {
+            QuartzRandRSetFakeFullscreen(FALSE);
+        }
+    }    
+}