Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 653 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/hw/darwin/quartz/quartzCursor.c b/nx-X11/programs/Xserver/hw/darwin/quartz/quartzCursor.c
new file mode 100644
index 000000000..711ce64f0
--- /dev/null
+++ b/nx-X11/programs/Xserver/hw/darwin/quartz/quartzCursor.c
@@ -0,0 +1,653 @@
+/**************************************************************
+ *
+ * Support for using the Quartz Window Manager cursor
+ *
+ **************************************************************/
+/*
+ * Copyright (c) 2001-2003 Torrey T. Lyons and Greg Parker.
+ *                 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.
+ */
+/* $XFree86: xc/programs/Xserver/hw/darwin/quartz/quartzCursor.c,v 1.4 2002/11/19 23:01:30 torrey Exp $ */
+
+#include "quartzCommon.h"
+#include "quartzCursor.h"
+#include "darwin.h"
+
+#include <pthread.h>
+
+#include "mi.h"
+#include "scrnintstr.h"
+#include "cursorstr.h"
+#include "mipointrst.h"
+#include "globals.h"
+
+// Size of the QuickDraw cursor
+#define CURSORWIDTH 16
+#define CURSORHEIGHT 16
+
+typedef struct {
+    int                     qdCursorMode;
+    int                     qdCursorVisible;
+    int                     useQDCursor;
+    QueryBestSizeProcPtr    QueryBestSize;
+    miPointerSpriteFuncPtr  spriteFuncs;
+} QuartzCursorScreenRec, *QuartzCursorScreenPtr;
+
+static int darwinCursorScreenIndex = -1;
+static unsigned long darwinCursorGeneration = 0;
+static CursorPtr quartzLatentCursor = NULL;
+static QD_Cursor gQDArrow; // QuickDraw arrow cursor
+
+// Cursor for the main thread to set (NULL = arrow cursor).
+static CCrsrHandle currentCursor = NULL;
+static pthread_mutex_t cursorMutex;
+static pthread_cond_t cursorCondition;
+
+#define CURSOR_PRIV(pScreen) \
+    ((QuartzCursorScreenPtr)pScreen->devPrivates[darwinCursorScreenIndex].ptr)
+
+#define HIDE_QD_CURSOR(pScreen, visible)                                \
+    if (visible) {                                                      \
+        int ix;                                                         \
+        for (ix = 0; ix < QUARTZ_PRIV(pScreen)->displayCount; ix++) {   \
+            CGDisplayHideCursor(QUARTZ_PRIV(pScreen)->displayIDs[ix]);  \
+        }                                                               \
+        visible = FALSE;                                                \
+    } ((void)0)
+
+#define SHOW_QD_CURSOR(pScreen, visible)                                \
+    {                                                                   \
+        int ix;                                                         \
+        for (ix = 0; ix < QUARTZ_PRIV(pScreen)->displayCount; ix++) {   \
+            CGDisplayShowCursor(QUARTZ_PRIV(pScreen)->displayIDs[ix]);  \
+        }                                                               \
+        visible = TRUE;                                                 \
+    } ((void)0)
+
+#define CHANGE_QD_CURSOR(cursorH)                                       \
+    if (!quartzServerQuitting) {                                        \
+        /* Acquire lock and tell the main thread to change cursor */    \
+        pthread_mutex_lock(&cursorMutex);                               \
+        currentCursor = (CCrsrHandle) (cursorH);                        \
+        QuartzMessageMainThread(kQuartzCursorUpdate, NULL, 0);          \
+                                                                        \
+        /* Wait for the main thread to change the cursor */             \
+        pthread_cond_wait(&cursorCondition, &cursorMutex);              \
+        pthread_mutex_unlock(&cursorMutex);                             \
+    } ((void)0)
+
+
+/*
+ * MakeQDCursor helpers: CTAB_ENTER, interleave
+ */
+
+// Add a color entry to a ctab
+#define CTAB_ENTER(ctab, index, r, g, b)                                \
+    ctab->ctTable[index].value = index;                                 \
+    ctab->ctTable[index].rgb.red = r;                                   \
+    ctab->ctTable[index].rgb.green = g;                                 \
+    ctab->ctTable[index].rgb.blue = b
+
+// Make an unsigned short by interleaving the bits of bytes c1 and c2.
+// High bit of c1 is first; low bit of c2 is last.
+// Interleave is a built-in INTERCAL operator.
+static unsigned short
+interleave(
+    unsigned char c1,
+    unsigned char c2 )
+{
+    return
+        ((c1 & 0x80) << 8) | ((c2 & 0x80) << 7) |
+        ((c1 & 0x40) << 7) | ((c2 & 0x40) << 6) |
+        ((c1 & 0x20) << 6) | ((c2 & 0x20) << 5) |
+        ((c1 & 0x10) << 5) | ((c2 & 0x10) << 4) |
+        ((c1 & 0x08) << 4) | ((c2 & 0x08) << 3) |
+        ((c1 & 0x04) << 3) | ((c2 & 0x04) << 2) |
+        ((c1 & 0x02) << 2) | ((c2 & 0x02) << 1) |
+        ((c1 & 0x01) << 1) | ((c2 & 0x01) << 0) ;
+}
+
+/*
+ * MakeQDCursor
+ * Make a QuickDraw color cursor from the given X11 cursor.
+ * Warning: This code is nasty. Color cursors were meant to be read
+ * from resources; constructing the structures programmatically is messy.
+ */
+/*
+    QuickDraw cursor representation:
+    Our color cursor is a 2 bit per pixel pixmap.
+    Each pixel's bits are (source<<1 | mask) from the original X cursor pixel.
+    The cursor's color table maps the colors like this:
+    (2-bit value | X result    | colortable | Mac result)
+             00  | transparent | white      | transparent (white outside mask)
+             01  | back color  | back color | back color
+             10  | undefined   | black      | invert background (just for fun)
+             11  | fore color  | fore color | fore color
+*/
+static CCrsrHandle
+MakeQDCursor(
+    CursorPtr pCursor )
+{
+    CCrsrHandle result;
+    CCrsrPtr curs;
+    int i, w, h;
+    unsigned short rowMask;
+    PixMap *pix;
+    ColorTable *ctab;
+    unsigned short *image;
+
+    result = (CCrsrHandle) NewHandleClear(sizeof(CCrsr));
+    if (!result) return NULL;
+    HLock((Handle)result);
+    curs = *result;
+
+    // Initialize CCrsr
+    curs->crsrType = 0x8001;     // 0x8000 = b&w, 0x8001 = color
+    curs->crsrMap = (PixMapHandle) NewHandleClear(sizeof(PixMap));
+    if (!curs->crsrMap) goto pixAllocFailed;
+    HLock((Handle)curs->crsrMap);
+    pix = *curs->crsrMap;
+    curs->crsrData = NULL;       // raw cursor image data (set below)
+    curs->crsrXData = NULL;      // QD's processed data
+    curs->crsrXValid = 0;        // zero means QD must re-process cursor data
+    curs->crsrXHandle = NULL;    // reserved
+    memset(curs->crsr1Data, 0, CURSORWIDTH*CURSORHEIGHT/8); // b&w data
+    memset(curs->crsrMask,  0, CURSORWIDTH*CURSORHEIGHT/8); // b&w & color mask
+    curs->crsrHotSpot.h = min(CURSORWIDTH,  pCursor->bits->xhot); // hot spot
+    curs->crsrHotSpot.v = min(CURSORHEIGHT, pCursor->bits->yhot); // hot spot
+    curs->crsrXTable = 0;        // reserved
+    curs->crsrID = GetCTSeed();  // unique ID from Color Manager
+
+    // Set the b&w data and mask
+    w = min(pCursor->bits->width,  CURSORWIDTH);
+    h = min(pCursor->bits->height, CURSORHEIGHT);
+    rowMask = ~((1 << (CURSORWIDTH - w)) - 1);
+    for (i = 0; i < h; i++) {
+        curs->crsr1Data[i] = rowMask &
+        ((pCursor->bits->source[i*4]<<8) | pCursor->bits->source[i*4+1]);
+        curs->crsrMask[i] = rowMask &
+        ((pCursor->bits->mask[i*4]<<8)   | pCursor->bits->mask[i*4+1]);
+    }
+
+    // Set the color data and mask
+    // crsrMap: defines bit depth and size and colortable only
+    pix->rowBytes = (CURSORWIDTH * 2 / 8) | 0x8000; // last bit on means PixMap
+    SetRect(&pix->bounds, 0, 0, CURSORWIDTH, CURSORHEIGHT); // see TN 1020
+    pix->pixelSize = 2;
+    pix->cmpCount = 1;
+    pix->cmpSize = 2;
+    // pix->pmTable set below
+
+    // crsrData is the pixel data. crsrMap's baseAddr is not used.
+    curs->crsrData = NewHandleClear(CURSORWIDTH*CURSORHEIGHT * 2 / 8);
+    if (!curs->crsrData) goto imageAllocFailed;
+    HLock((Handle)curs->crsrData);
+    image = (unsigned short *) *curs->crsrData;
+    // Pixel data is just 1-bit data and mask interleaved (see above)
+    for (i = 0; i < h; i++) {
+        unsigned char s, m;
+        s = pCursor->bits->source[i*4] & (rowMask >> 8);
+        m = pCursor->bits->mask[i*4] & (rowMask >> 8);
+        image[2*i] = interleave(s, m);
+        s = pCursor->bits->source[i*4+1] & (rowMask & 0x00ff);
+        m = pCursor->bits->mask[i*4+1] & (rowMask & 0x00ff);
+        image[2*i+1] = interleave(s, m);
+    }
+
+    // Build the color table (entries described above)
+    // NewPixMap allocates a color table handle.
+    pix->pmTable = (CTabHandle) NewHandleClear(sizeof(ColorTable) + 3
+                    * sizeof(ColorSpec));
+    if (!pix->pmTable) goto ctabAllocFailed;
+    HLock((Handle)pix->pmTable);
+    ctab = *pix->pmTable;
+    ctab->ctSeed = GetCTSeed();
+    ctab->ctFlags = 0;
+    ctab->ctSize = 3; // color count - 1
+    CTAB_ENTER(ctab, 0, 0xffff, 0xffff, 0xffff);
+    CTAB_ENTER(ctab, 1, pCursor->backRed, pCursor->backGreen,
+               pCursor->backBlue);
+    CTAB_ENTER(ctab, 2, 0x0000, 0x0000, 0x0000);
+    CTAB_ENTER(ctab, 3, pCursor->foreRed, pCursor->foreGreen,
+               pCursor->foreBlue);
+
+    HUnlock((Handle)pix->pmTable); // ctab
+    HUnlock((Handle)curs->crsrData); // image data
+    HUnlock((Handle)curs->crsrMap); // pix
+    HUnlock((Handle)result); // cursor
+
+    return result;
+
+    // "What we have here is a failure to allocate"
+ctabAllocFailed:
+    HUnlock((Handle)curs->crsrData);
+    DisposeHandle((Handle)curs->crsrData);
+imageAllocFailed:
+    HUnlock((Handle)curs->crsrMap);
+    DisposeHandle((Handle)curs->crsrMap);
+pixAllocFailed:
+    HUnlock((Handle)result);
+    DisposeHandle((Handle)result);
+    return NULL;
+}
+
+
+/*
+ * FreeQDCursor
+ * Destroy a QuickDraw color cursor created with MakeQDCursor().
+ * The cursor must not currently be on screen.
+ */
+static void FreeQDCursor(CCrsrHandle cursHandle)
+{
+    CCrsrPtr curs;
+    PixMap *pix;
+
+    HLock((Handle)cursHandle);
+    curs = *cursHandle;
+    HLock((Handle)curs->crsrMap);
+    pix = *curs->crsrMap;
+    DisposeHandle((Handle)pix->pmTable);
+    HUnlock((Handle)curs->crsrMap);
+    DisposeHandle((Handle)curs->crsrMap);
+    DisposeHandle((Handle)curs->crsrData);
+    HUnlock((Handle)cursHandle);
+    DisposeHandle((Handle)cursHandle);
+}
+
+
+/*
+===========================================================================
+
+ Pointer sprite functions
+
+===========================================================================
+*/
+
+/*
+ * QuartzRealizeCursor
+ * Convert the X cursor representation to QuickDraw format if possible.
+ */
+Bool
+QuartzRealizeCursor(
+    ScreenPtr pScreen,
+    CursorPtr pCursor )
+{
+    CCrsrHandle qdCursor;
+    QuartzCursorScreenPtr ScreenPriv = CURSOR_PRIV(pScreen);
+
+    if(!pCursor || !pCursor->bits)
+        return FALSE;
+
+    // if the cursor is too big we use a software cursor
+    if ((pCursor->bits->height > CURSORHEIGHT) ||
+        (pCursor->bits->width > CURSORWIDTH) || !ScreenPriv->useQDCursor)
+    {
+        if (quartzRootless) {
+            // rootless can't use a software cursor
+            return TRUE;
+        } else {
+            return (*ScreenPriv->spriteFuncs->RealizeCursor)
+                        (pScreen, pCursor);
+        }
+    }
+
+    // make new cursor image
+    qdCursor = MakeQDCursor(pCursor);
+    if (!qdCursor) return FALSE;
+
+    // save the result
+    pCursor->devPriv[pScreen->myNum] = (pointer) qdCursor;
+
+    return TRUE;
+}
+
+
+/*
+ * QuartzUnrealizeCursor
+ * Free the storage space associated with a realized cursor.
+ */
+Bool
+QuartzUnrealizeCursor(
+    ScreenPtr pScreen,
+    CursorPtr pCursor )
+{
+    QuartzCursorScreenPtr ScreenPriv = CURSOR_PRIV(pScreen);
+
+    if ((pCursor->bits->height > CURSORHEIGHT) ||
+        (pCursor->bits->width > CURSORWIDTH) || !ScreenPriv->useQDCursor)
+    {
+        if (quartzRootless) {
+            return TRUE;
+        } else {
+            return (*ScreenPriv->spriteFuncs->UnrealizeCursor)
+                        (pScreen, pCursor);
+        }
+    } else {
+        CCrsrHandle oldCursor = (CCrsrHandle) pCursor->devPriv[pScreen->myNum];
+
+        if (currentCursor != oldCursor) {
+            // This should only fail when quitting, in which case we just leak.
+            FreeQDCursor(oldCursor);
+        }
+        pCursor->devPriv[pScreen->myNum] = NULL;
+        return TRUE;
+    }
+}
+
+
+/*
+ * QuartzSetCursor
+ * Set the cursor sprite and position.
+ * Use QuickDraw cursor if possible.
+ */
+static void
+QuartzSetCursor(
+    ScreenPtr       pScreen,
+    CursorPtr       pCursor,
+    int             x,
+    int             y)
+{
+    QuartzCursorScreenPtr ScreenPriv = CURSOR_PRIV(pScreen);
+
+    quartzLatentCursor = pCursor;
+
+    // Don't touch Mac OS cursor if X is hidden!
+    if (!quartzServerVisible)
+        return;
+
+    if (!pCursor) {
+        // Remove the cursor completely.
+        HIDE_QD_CURSOR(pScreen, ScreenPriv->qdCursorVisible);
+        if (! ScreenPriv->qdCursorMode)
+            (*ScreenPriv->spriteFuncs->SetCursor)(pScreen, 0, x, y);
+    }
+    else if ((pCursor->bits->height <= CURSORHEIGHT) &&
+             (pCursor->bits->width <= CURSORWIDTH) && ScreenPriv->useQDCursor)
+    {
+        // Cursor is small enough to use QuickDraw directly.
+        if (! ScreenPriv->qdCursorMode)    // remove the X cursor
+            (*ScreenPriv->spriteFuncs->SetCursor)(pScreen, 0, x, y);
+        ScreenPriv->qdCursorMode = TRUE;
+
+        CHANGE_QD_CURSOR(pCursor->devPriv[pScreen->myNum]);
+        SHOW_QD_CURSOR(pScreen, ScreenPriv->qdCursorVisible);
+    }
+    else if (quartzRootless) {
+        // Rootless can't use a software cursor, so we just use Mac OS arrow.
+        CHANGE_QD_CURSOR(NULL);
+        SHOW_QD_CURSOR(pScreen, ScreenPriv->qdCursorVisible);
+    }
+    else {
+        // Cursor is too big for QuickDraw. Use X software cursor.
+        HIDE_QD_CURSOR(pScreen, ScreenPriv->qdCursorVisible);
+        ScreenPriv->qdCursorMode = FALSE;
+        (*ScreenPriv->spriteFuncs->SetCursor)(pScreen, pCursor, x, y);
+    }
+}
+
+
+/*
+ * QuartzReallySetCursor
+ * Set the QuickDraw cursor. Called from the main thread since changing the
+ * cursor with QuickDraw is not thread safe on dual processor machines.
+ */
+void
+QuartzReallySetCursor()
+{
+    pthread_mutex_lock(&cursorMutex);
+
+    if (currentCursor) {
+        SetCCursor(currentCursor);
+    } else {
+        SetCursor(&gQDArrow);
+    }
+
+    pthread_cond_signal(&cursorCondition);
+    pthread_mutex_unlock(&cursorMutex);
+}
+
+
+/*
+ * QuartzMoveCursor
+ * Move the cursor. This is a noop for QuickDraw.
+ */
+static void
+QuartzMoveCursor(
+    ScreenPtr   pScreen,
+    int         x,
+    int         y)
+{
+    QuartzCursorScreenPtr ScreenPriv = CURSOR_PRIV(pScreen);
+
+    // only the X cursor needs to be explicitly moved
+    if (!ScreenPriv->qdCursorMode)
+        (*ScreenPriv->spriteFuncs->MoveCursor)(pScreen, x, y);
+}
+
+
+static miPointerSpriteFuncRec quartzSpriteFuncsRec = {
+    QuartzRealizeCursor,
+    QuartzUnrealizeCursor,
+    QuartzSetCursor,
+    QuartzMoveCursor
+};
+
+
+/*
+===========================================================================
+
+ Pointer screen functions
+
+===========================================================================
+*/
+
+/*
+ * QuartzCursorOffScreen
+ */
+static Bool QuartzCursorOffScreen(ScreenPtr *pScreen, int *x, int *y)
+{
+    return FALSE;
+}
+
+
+/*
+ * QuartzCrossScreen
+ */
+static void QuartzCrossScreen(ScreenPtr pScreen, Bool entering)
+{
+    return;
+}
+
+
+/*
+ * QuartzWarpCursor
+ *  Change the cursor position without generating an event or motion history.
+ *  The input coordinates (x,y) are in pScreen-local X11 coordinates.
+ *
+ */
+static void
+QuartzWarpCursor(
+    ScreenPtr               pScreen,
+    int                     x,
+    int                     y)
+{
+    static int              neverMoved = TRUE;
+
+    if (neverMoved) {
+        // Don't move the cursor the first time. This is the jump-to-center
+        // initialization, and it's annoying because we may still be in MacOS.
+        neverMoved = FALSE;
+        return;
+    }
+
+    if (quartzServerVisible) {
+        CGDisplayErr        cgErr;
+        CGPoint             cgPoint;
+        // Only need to do this for one display. Any display will do.
+        CGDirectDisplayID   cgID = QUARTZ_PRIV(pScreen)->displayIDs[0];
+        CGRect              cgRect = CGDisplayBounds(cgID);
+
+        // Convert (x,y) to CoreGraphics screen-local CG coordinates.
+        // This is necessary because the X11 screen and CG screen may not
+        // coincide. (e.g. X11 screen may be moved to dodge the menu bar)
+
+        // Make point in X11 global coordinates
+        cgPoint = CGPointMake(x + dixScreenOrigins[pScreen->myNum].x,
+                              y + dixScreenOrigins[pScreen->myNum].y);
+        // Shift to CoreGraphics global screen coordinates
+        cgPoint.x += darwinMainScreenX;
+        cgPoint.y += darwinMainScreenY;
+        // Shift to CoreGraphics screen-local coordinates
+        cgPoint.x -= cgRect.origin.x;
+        cgPoint.y -= cgRect.origin.y;
+
+        cgErr = CGDisplayMoveCursorToPoint(cgID, cgPoint);
+        if (cgErr != CGDisplayNoErr) {
+            ErrorF("Could not set cursor position with error code 0x%x.\n",
+                    cgErr);
+        }
+    }
+
+    miPointerWarpCursor(pScreen, x, y);
+    miPointerUpdate();
+}
+
+
+static miPointerScreenFuncRec quartzScreenFuncsRec = {
+    QuartzCursorOffScreen,
+    QuartzCrossScreen,
+    QuartzWarpCursor,
+    DarwinEQPointerPost,
+    DarwinEQSwitchScreen
+};
+
+
+/*
+===========================================================================
+
+ Other screen functions
+
+===========================================================================
+*/
+
+/*
+ * QuartzCursorQueryBestSize
+ * Handle queries for best cursor size
+ */
+static void
+QuartzCursorQueryBestSize(
+   int              class,
+   unsigned short   *width,
+   unsigned short   *height,
+   ScreenPtr        pScreen)
+{
+    QuartzCursorScreenPtr ScreenPriv = CURSOR_PRIV(pScreen);
+
+    if (class == CursorShape) {
+        *width = CURSORWIDTH;
+        *height = CURSORHEIGHT;
+    } else {
+        (*ScreenPriv->QueryBestSize)(class, width, height, pScreen);
+    }
+}
+
+
+/*
+ * QuartzInitCursor
+ * Initialize cursor support
+ */
+Bool
+QuartzInitCursor(
+    ScreenPtr   pScreen )
+{
+    QuartzCursorScreenPtr   ScreenPriv;
+    miPointerScreenPtr      PointPriv;
+    DarwinFramebufferPtr    dfb = SCREEN_PRIV(pScreen);
+
+    // initialize software cursor handling (always needed as backup)
+    if (!miDCInitialize(pScreen, &quartzScreenFuncsRec)) {
+        return FALSE;
+    }
+
+    // allocate private storage for this screen's QuickDraw cursor info
+    if (darwinCursorGeneration != serverGeneration) {
+        if ((darwinCursorScreenIndex = AllocateScreenPrivateIndex()) < 0)
+            return FALSE;
+        darwinCursorGeneration = serverGeneration;
+    }
+
+    ScreenPriv = xcalloc( 1, sizeof(QuartzCursorScreenRec) );
+    if (!ScreenPriv) return FALSE;
+
+    CURSOR_PRIV(pScreen) = ScreenPriv;
+
+    // override some screen procedures
+    ScreenPriv->QueryBestSize = pScreen->QueryBestSize;
+    pScreen->QueryBestSize = QuartzCursorQueryBestSize;
+
+    // initialize QuickDraw cursor handling
+    GetQDGlobalsArrow(&gQDArrow);
+    PointPriv = (miPointerScreenPtr)
+                    pScreen->devPrivates[miPointerScreenIndex].ptr;
+
+    ScreenPriv->spriteFuncs = PointPriv->spriteFuncs;
+    PointPriv->spriteFuncs = &quartzSpriteFuncsRec;
+
+    if (!quartzRootless)
+        ScreenPriv->useQDCursor = QuartzFSUseQDCursor(dfb->colorBitsPerPixel);
+    else
+        ScreenPriv->useQDCursor = TRUE;
+    ScreenPriv->qdCursorMode = TRUE;
+    ScreenPriv->qdCursorVisible = TRUE;
+
+    // initialize cursor mutex lock
+    pthread_mutex_init(&cursorMutex, NULL);
+
+    // initialize condition for waiting
+    pthread_cond_init(&cursorCondition, NULL);
+
+    return TRUE;
+}
+
+
+// X server is hiding. Restore the Aqua cursor.
+void QuartzSuspendXCursor(
+    ScreenPtr pScreen )
+{
+    QuartzCursorScreenPtr ScreenPriv = CURSOR_PRIV(pScreen);
+
+    CHANGE_QD_CURSOR(NULL);
+    SHOW_QD_CURSOR(pScreen, ScreenPriv->qdCursorVisible);
+}
+
+
+// X server is showing. Restore the X cursor.
+void QuartzResumeXCursor(
+    ScreenPtr pScreen,
+    int x,
+    int y )
+{
+    QuartzSetCursor(pScreen, quartzLatentCursor, x, y);
+}