1 files changed, 584 insertions, 584 deletions
diff --git a/xorg-server/mi/midispcur.c b/xorg-server/mi/midispcur.c
index 32c5c9df6..aebf91d5d 100644
--- a/xorg-server/mi/midispcur.c
+++ b/xorg-server/mi/midispcur.c
@@ -1,584 +1,584 @@
-/*
- * midispcur.c
- *
- * machine independent cursor display routines
- */
-
-
-/*
-
-Copyright 1989, 1998  The Open Group
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-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
-OPEN GROUP 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 of The Open Group shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from The Open Group.
-*/
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-# include   <X11/X.h>
-# include   "misc.h"
-# include   "input.h"
-# include   "cursorstr.h"
-# include   "windowstr.h"
-# include   "regionstr.h"
-# include   "dixstruct.h"
-# include   "scrnintstr.h"
-# include   "servermd.h"
-# include   "mipointer.h"
-# include   "misprite.h"
-# include   "gcstruct.h"
-
-#ifdef ARGB_CURSOR
-# include   "picturestr.h"
-#endif
-
-# include "inputstr.h"
-
-/* per-screen private data */
-static DevPrivateKeyRec miDCScreenKeyRec;
-#define miDCScreenKey (&miDCScreenKeyRec)
-static DevScreenPrivateKeyRec miDCCursorBitsKeyRec;
-#define miDCCursorBitsKey (&miDCCursorBitsKeyRec)
-static DevScreenPrivateKeyRec miDCDeviceKeyRec;
-#define miDCDeviceKey (&miDCDeviceKeyRec)
-
-static Bool	miDCCloseScreen(int index, ScreenPtr pScreen);
-
-/* per device private data */
-typedef struct {
-    GCPtr	    pSourceGC, pMaskGC;
-    GCPtr	    pSaveGC, pRestoreGC;
-    PixmapPtr	    pSave;
-#ifdef ARGB_CURSOR
-    PicturePtr	    pRootPicture;
-#endif
-} miDCBufferRec, *miDCBufferPtr;
-
-#define miGetDCDevice(dev, screen) \
- ((DevHasCursor(dev)) ? \
-  (miDCBufferPtr)dixLookupScreenPrivate(&dev->devPrivates, miDCDeviceKey, screen) : \
-  (miDCBufferPtr)dixLookupScreenPrivate(&GetMaster(dev, MASTER_POINTER)->devPrivates, miDCDeviceKey, screen))
-
-/* 
- * The core pointer buffer will point to the index of the virtual core pointer
- * in the pCursorBuffers array. 
- */
-typedef struct {
-    CloseScreenProcPtr	CloseScreen;
-} miDCScreenRec, *miDCScreenPtr;
-
-#define miGetDCScreen(s)	((miDCScreenPtr)(dixLookupPrivate(&(s)->devPrivates, miDCScreenKey)))
-
-/* per-cursor per-screen private data */
-typedef struct {
-    PixmapPtr		sourceBits;	    /* source bits */
-    PixmapPtr		maskBits;	    /* mask bits */
-#ifdef ARGB_CURSOR
-    PicturePtr		pPicture;
-#endif
-} miDCCursorRec, *miDCCursorPtr;
-
-Bool
-miDCInitialize (ScreenPtr pScreen, miPointerScreenFuncPtr screenFuncs)
-{
-    miDCScreenPtr   pScreenPriv;
-
-    if (!dixRegisterPrivateKey(&miDCScreenKeyRec, PRIVATE_SCREEN, 0) ||
-        !dixRegisterScreenPrivateKey(&miDCCursorBitsKeyRec, pScreen, PRIVATE_CURSOR_BITS, 0) ||
-        !dixRegisterScreenPrivateKey(&miDCDeviceKeyRec, pScreen, PRIVATE_DEVICE, 0))
-	return FALSE;
-
-    pScreenPriv = malloc(sizeof (miDCScreenRec));
-    if (!pScreenPriv)
-	return FALSE;
-
-    pScreenPriv->CloseScreen = pScreen->CloseScreen;
-    pScreen->CloseScreen = miDCCloseScreen;
-
-    dixSetPrivate(&pScreen->devPrivates, miDCScreenKey, pScreenPriv);
-
-    if (!miSpriteInitialize (pScreen, screenFuncs))
-    {
-	free((pointer) pScreenPriv);
-	return FALSE;
-    }
-    return TRUE;
-}
-
-static Bool
-miDCCloseScreen (int index, ScreenPtr pScreen)
-{
-    miDCScreenPtr   pScreenPriv;
-
-    pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
-						  miDCScreenKey);
-    pScreen->CloseScreen = pScreenPriv->CloseScreen;
-    free((pointer) pScreenPriv);
-    return (*pScreen->CloseScreen) (index, pScreen);
-}
-
-Bool
-miDCRealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)
-{
-    if (pCursor->bits->refcnt <= 1)
-	dixSetScreenPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey, pScreen, NULL);
-    return TRUE;
-}
-
-#ifdef ARGB_CURSOR
-#define EnsurePicture(picture,draw,win) (picture || miDCMakePicture(&picture,draw,win))
-
-static VisualPtr
-miDCGetWindowVisual (WindowPtr pWin)
-{
-    ScreenPtr	    pScreen = pWin->drawable.pScreen;
-    VisualID	    vid = wVisual (pWin);
-    int		    i;
-
-    for (i = 0; i < pScreen->numVisuals; i++)
-	if (pScreen->visuals[i].vid == vid)
-	    return &pScreen->visuals[i];
-    return 0;
-}
-
-static PicturePtr
-miDCMakePicture (PicturePtr *ppPicture, DrawablePtr pDraw, WindowPtr pWin)
-{
-    ScreenPtr	    pScreen = pDraw->pScreen;
-    VisualPtr	    pVisual;
-    PictFormatPtr   pFormat;
-    XID		    subwindow_mode = IncludeInferiors;
-    PicturePtr	    pPicture;
-    int		    error;
-    
-    pVisual = miDCGetWindowVisual (pWin);
-    if (!pVisual)
-	return 0;
-    pFormat = PictureMatchVisual (pScreen, pDraw->depth, pVisual);
-    if (!pFormat)
-	return 0;
-    pPicture = CreatePicture (0, pDraw, pFormat,
-			      CPSubwindowMode, &subwindow_mode,
-			      serverClient, &error);
-    *ppPicture = pPicture;
-    return pPicture;
-}
-#endif
-
-static miDCCursorPtr
-miDCRealize (ScreenPtr pScreen, CursorPtr pCursor)
-{
-    miDCCursorPtr   pPriv;
-    GCPtr	    pGC;
-    ChangeGCVal	    gcvals;
-
-    pPriv = malloc(sizeof (miDCCursorRec));
-    if (!pPriv)
-	return NULL;
-#ifdef ARGB_CURSOR
-    if (pCursor->bits->argb)
-    {
-	PixmapPtr	pPixmap;
-	PictFormatPtr	pFormat;
-	int		error;
-	
-	pFormat = PictureMatchFormat (pScreen, 32, PICT_a8r8g8b8);
-	if (!pFormat)
-	{
-	    free((pointer) pPriv);
-	    return NULL;
-	}
-	
-	pPriv->sourceBits = 0;
-	pPriv->maskBits = 0;
-	pPixmap = (*pScreen->CreatePixmap) (pScreen, pCursor->bits->width,
-					    pCursor->bits->height, 32,
-					    CREATE_PIXMAP_USAGE_SCRATCH);
-	if (!pPixmap)
-	{
-	    free((pointer) pPriv);
-	    return NULL;
-	}
-	pGC = GetScratchGC (32, pScreen);
-	if (!pGC)
-	{
-	    (*pScreen->DestroyPixmap) (pPixmap);
-	    free((pointer) pPriv);
-	    return NULL;
-	}
-	ValidateGC (&pPixmap->drawable, pGC);
-	(*pGC->ops->PutImage) (&pPixmap->drawable, pGC, 32,
-			       0, 0, pCursor->bits->width,
-			       pCursor->bits->height,
-			       0, ZPixmap, (char *) pCursor->bits->argb);
-	FreeScratchGC (pGC);
-	pPriv->pPicture = CreatePicture (0, &pPixmap->drawable,
-					pFormat, 0, 0, serverClient, &error);
-        (*pScreen->DestroyPixmap) (pPixmap);
-	if (!pPriv->pPicture)
-	{
-	    free((pointer) pPriv);
-	    return NULL;
-	}
-	dixSetScreenPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey, pScreen, pPriv);
-	return pPriv;
-    }
-    pPriv->pPicture = 0;
-#endif
-    pPriv->sourceBits = (*pScreen->CreatePixmap) (pScreen, pCursor->bits->width, pCursor->bits->height, 1, 0);
-    if (!pPriv->sourceBits)
-    {
-	free((pointer) pPriv);
-	return NULL;
-    }
-    pPriv->maskBits =  (*pScreen->CreatePixmap) (pScreen, pCursor->bits->width, pCursor->bits->height, 1, 0);
-    if (!pPriv->maskBits)
-    {
-	(*pScreen->DestroyPixmap) (pPriv->sourceBits);
-	free((pointer) pPriv);
-	return NULL;
-    }
-    dixSetScreenPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey, pScreen, pPriv);
-
-    /* create the two sets of bits, clipping as appropriate */
-
-    pGC = GetScratchGC (1, pScreen);
-    if (!pGC)
-    {
-	(void) miDCUnrealizeCursor (pScreen, pCursor);
-	return NULL;
-    }
-
-    ValidateGC ((DrawablePtr)pPriv->sourceBits, pGC);
-    (*pGC->ops->PutImage) ((DrawablePtr)pPriv->sourceBits, pGC, 1,
-			   0, 0, pCursor->bits->width, pCursor->bits->height,
- 			   0, XYPixmap, (char *)pCursor->bits->source);
-    gcvals.val = GXand;
-    ChangeGC (NullClient, pGC, GCFunction, &gcvals);
-    ValidateGC ((DrawablePtr)pPriv->sourceBits, pGC);
-    (*pGC->ops->PutImage) ((DrawablePtr)pPriv->sourceBits, pGC, 1,
-			   0, 0, pCursor->bits->width, pCursor->bits->height,
- 			   0, XYPixmap, (char *)pCursor->bits->mask);
-
-    /* mask bits -- pCursor->mask & ~pCursor->source */
-    gcvals.val = GXcopy;
-    ChangeGC (NullClient, pGC, GCFunction, &gcvals);
-    ValidateGC ((DrawablePtr)pPriv->maskBits, pGC);
-    (*pGC->ops->PutImage) ((DrawablePtr)pPriv->maskBits, pGC, 1,
-			   0, 0, pCursor->bits->width, pCursor->bits->height,
- 			   0, XYPixmap, (char *)pCursor->bits->mask);
-    gcvals.val = GXandInverted;
-    ChangeGC (NullClient, pGC, GCFunction, &gcvals);
-    ValidateGC ((DrawablePtr)pPriv->maskBits, pGC);
-    (*pGC->ops->PutImage) ((DrawablePtr)pPriv->maskBits, pGC, 1,
-			   0, 0, pCursor->bits->width, pCursor->bits->height,
- 			   0, XYPixmap, (char *)pCursor->bits->source);
-    FreeScratchGC (pGC);
-    return pPriv;
-}
-
-Bool
-miDCUnrealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)
-{
-    miDCCursorPtr   pPriv;
-
-    pPriv = (miDCCursorPtr)dixLookupScreenPrivate(&pCursor->bits->devPrivates,
-						  miDCCursorBitsKey, pScreen);
-    if (pPriv && (pCursor->bits->refcnt <= 1))
-    {
-	if (pPriv->sourceBits)
-	    (*pScreen->DestroyPixmap) (pPriv->sourceBits);
-	if (pPriv->maskBits)
-	    (*pScreen->DestroyPixmap) (pPriv->maskBits);
-#ifdef ARGB_CURSOR
-	if (pPriv->pPicture)
-	    FreePicture (pPriv->pPicture, 0);
-#endif
-	free((pointer) pPriv);
-	dixSetScreenPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey, pScreen, NULL);
-    }
-    return TRUE;
-}
-
-static void
-miDCPutBits (
-    DrawablePtr	    pDrawable,
-    miDCCursorPtr   pPriv,
-    GCPtr	    sourceGC,
-    GCPtr	    maskGC,
-    int             x_org,
-    int             y_org,
-    unsigned        w,
-    unsigned        h,
-    unsigned long   source,
-    unsigned long   mask)
-{
-    ChangeGCVal gcval;
-    int     x, y;
-
-    if (sourceGC->fgPixel != source)
-    {
-	gcval.val = source;
-	ChangeGC (NullClient, sourceGC, GCForeground, &gcval);
-    }
-    if (sourceGC->serialNumber != pDrawable->serialNumber)
-	ValidateGC (pDrawable, sourceGC);
-
-    if(sourceGC->miTranslate) 
-    {
-        x = pDrawable->x + x_org;
-        y = pDrawable->y + y_org;
-    } 
-    else
-    {
-        x = x_org;
-        y = y_org;
-    }
-
-    (*sourceGC->ops->PushPixels) (sourceGC, pPriv->sourceBits, pDrawable, w, h, x, y);
-    if (maskGC->fgPixel != mask)
-    {
-	gcval.val = mask;
-	ChangeGC (NullClient, maskGC, GCForeground, &gcval);
-    }
-    if (maskGC->serialNumber != pDrawable->serialNumber)
-	ValidateGC (pDrawable, maskGC);
-
-    if(maskGC->miTranslate) 
-    {
-        x = pDrawable->x + x_org;
-        y = pDrawable->y + y_org;
-    } 
-    else
-    {
-        x = x_org;
-        y = y_org;
-    }
-
-    (*maskGC->ops->PushPixels) (maskGC, pPriv->maskBits, pDrawable, w, h, x, y);
-}
-
-static GCPtr
-miDCMakeGC(WindowPtr pWin)
-{
-    GCPtr pGC;
-    int   status;
-    XID   gcvals[2];
-
-    gcvals[0] = IncludeInferiors;
-    gcvals[1] = FALSE;
-    pGC = CreateGC((DrawablePtr)pWin,
-		   GCSubwindowMode|GCGraphicsExposures, gcvals, &status,
-		   (XID)0, serverClient);
-    return pGC;
-}
-
-
-Bool
-miDCPutUpCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
-                 int x, int y, unsigned long source, unsigned long mask)
-{
-    miDCCursorPtr   pPriv;
-    miDCBufferPtr   pBuffer;
-    WindowPtr	    pWin;
-
-    pPriv = (miDCCursorPtr)dixLookupScreenPrivate(&pCursor->bits->devPrivates,
-						  miDCCursorBitsKey, pScreen);
-    if (!pPriv)
-    {
-	pPriv = miDCRealize(pScreen, pCursor);
-	if (!pPriv)
-	    return FALSE;
-    }
-
-    pWin = pScreen->root;
-    pBuffer = miGetDCDevice(pDev, pScreen);
-
-#ifdef ARGB_CURSOR
-    if (pPriv->pPicture)
-    {
-	if (!EnsurePicture(pBuffer->pRootPicture, &pWin->drawable, pWin))
-	    return FALSE;
-	CompositePicture (PictOpOver,
-			  pPriv->pPicture,
-			  NULL,
-			  pBuffer->pRootPicture,
-			  0, 0, 0, 0, 
-			  x, y, 
-			  pCursor->bits->width,
-			  pCursor->bits->height);
-    }
-    else
-#endif
-    {
-	miDCPutBits ((DrawablePtr)pWin, pPriv,
-		     pBuffer->pSourceGC, pBuffer->pMaskGC,
-		     x, y, pCursor->bits->width, pCursor->bits->height,
-		     source, mask);
-    }
-    return TRUE;
-}
-
-Bool
-miDCSaveUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
-                     int x, int y, int w, int h)
-{
-    miDCBufferPtr   pBuffer;
-    PixmapPtr	    pSave;
-    WindowPtr	    pWin;
-    GCPtr	    pGC;
-
-    pBuffer = miGetDCDevice(pDev, pScreen);
-
-    pSave = pBuffer->pSave;
-    pWin = pScreen->root;
-    if (!pSave || pSave->drawable.width < w || pSave->drawable.height < h)
-    {
-	if (pSave)
-	    (*pScreen->DestroyPixmap) (pSave);
-	pBuffer->pSave = pSave =
-		(*pScreen->CreatePixmap) (pScreen, w, h, pScreen->rootDepth, 0);
-	if (!pSave)
-	    return FALSE;
-    }
-
-    pGC = pBuffer->pSaveGC;
-    if (pSave->drawable.serialNumber != pGC->serialNumber)
-	ValidateGC ((DrawablePtr) pSave, pGC);
-    (*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC,
-			    x, y, w, h, 0, 0);
-    return TRUE;
-}
-
-Bool
-miDCRestoreUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
-                        int x, int y, int w, int h)
-{
-    miDCBufferPtr   pBuffer;
-    PixmapPtr	    pSave;
-    WindowPtr	    pWin;
-    GCPtr	    pGC;
-
-    pBuffer = miGetDCDevice(pDev, pScreen);
-    pSave = pBuffer->pSave;
-
-    pWin = pScreen->root;
-    if (!pSave)
-	return FALSE;
-
-    pGC = pBuffer->pRestoreGC;
-    if (pWin->drawable.serialNumber != pGC->serialNumber)
-	ValidateGC ((DrawablePtr) pWin, pGC);
-    (*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,
-			    0, 0, w, h, x, y);
-    return TRUE;
-}
-
-Bool
-miDCDeviceInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)
-{
-    miDCBufferPtr   pBuffer;
-    WindowPtr       pWin;
-    int             i;
-
-    if (!DevHasCursor(pDev))
-        return TRUE;
-
-    for (i = 0; i < screenInfo.numScreens; i++)
-    {
-        pScreen = screenInfo.screens[i];
-
-        pBuffer = calloc(1, sizeof(miDCBufferRec));
-        if (!pBuffer)
-            goto failure;
-
-        dixSetScreenPrivate(&pDev->devPrivates, miDCDeviceKey, pScreen, pBuffer);
-        pWin = pScreen->root;
-
-        pBuffer->pSourceGC = miDCMakeGC(pWin);
-        if (!pBuffer->pSourceGC)
-            goto failure;
-
-        pBuffer->pMaskGC = miDCMakeGC(pWin);
-        if (!pBuffer->pMaskGC)
-            goto failure;
-
-        pBuffer->pSaveGC = miDCMakeGC(pWin);
-        if (!pBuffer->pSaveGC)
-            goto failure;
-
-        pBuffer->pRestoreGC = miDCMakeGC(pWin);
-        if (!pBuffer->pRestoreGC)
-            goto failure;
-
-#ifdef ARGB_CURSOR
-        pBuffer->pRootPicture = NULL;
-#endif
-
-        /* (re)allocated lazily depending on the cursor size */
-        pBuffer->pSave = NULL;
-    }
-
-    return TRUE;
-
-failure:
-
-    miDCDeviceCleanup(pDev, pScreen);
-
-    return FALSE;
-}
-
-void
-miDCDeviceCleanup(DeviceIntPtr pDev, ScreenPtr pScreen)
-{
-    miDCBufferPtr   pBuffer;
-    int             i;
-
-    if (DevHasCursor(pDev))
-    {
-        for (i = 0; i < screenInfo.numScreens; i++)
-        {
-            pScreen = screenInfo.screens[i];
-
-            pBuffer = miGetDCDevice(pDev, pScreen);
-
-            if (pBuffer)
-            {
-                if (pBuffer->pSourceGC) FreeGC(pBuffer->pSourceGC, (GContext) 0);
-                if (pBuffer->pMaskGC) FreeGC(pBuffer->pMaskGC, (GContext) 0);
-                if (pBuffer->pSaveGC) FreeGC(pBuffer->pSaveGC, (GContext) 0);
-                if (pBuffer->pRestoreGC) FreeGC(pBuffer->pRestoreGC, (GContext) 0);
-
-#ifdef ARGB_CURSOR
-                /* If a pRootPicture was allocated for a root window, it
-                 * is freed when that root window is destroyed, so don't
-                 * free it again here. */
-#endif
-
-                if (pBuffer->pSave) (*pScreen->DestroyPixmap)(pBuffer->pSave);
-
-                free(pBuffer);
-                dixSetScreenPrivate(&pDev->devPrivates, miDCDeviceKey, pScreen, NULL);
-            }
-        }
-    }
-}
+/*
+ * midispcur.c
+ *
+ * machine independent cursor display routines
+ */
+
+
+/*
+
+Copyright 1989, 1998  The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+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
+OPEN GROUP 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 of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+*/
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+# include   <X11/X.h>
+# include   "misc.h"
+# include   "input.h"
+# include   "cursorstr.h"
+# include   "windowstr.h"
+# include   "regionstr.h"
+# include   "dixstruct.h"
+# include   "scrnintstr.h"
+# include   "servermd.h"
+# include   "mipointer.h"
+# include   "misprite.h"
+# include   "gcstruct.h"
+
+#ifdef ARGB_CURSOR
+# include   "picturestr.h"
+#endif
+
+# include "inputstr.h"
+
+/* per-screen private data */
+static DevPrivateKeyRec miDCScreenKeyRec;
+#define miDCScreenKey (&miDCScreenKeyRec)
+static DevScreenPrivateKeyRec miDCCursorBitsKeyRec;
+#define miDCCursorBitsKey (&miDCCursorBitsKeyRec)
+static DevScreenPrivateKeyRec miDCDeviceKeyRec;
+#define miDCDeviceKey (&miDCDeviceKeyRec)
+
+static Bool	miDCCloseScreen(int index, ScreenPtr pScreen);
+
+/* per device private data */
+typedef struct {
+    GCPtr	    pSourceGC, pMaskGC;
+    GCPtr	    pSaveGC, pRestoreGC;
+    PixmapPtr	    pSave;
+#ifdef ARGB_CURSOR
+    PicturePtr	    pRootPicture;
+#endif
+} miDCBufferRec, *miDCBufferPtr;
+
+#define miGetDCDevice(dev, screen) \
+ ((DevHasCursor(dev)) ? \
+  (miDCBufferPtr)dixLookupScreenPrivate(&dev->devPrivates, miDCDeviceKey, screen) : \
+  (miDCBufferPtr)dixLookupScreenPrivate(&GetMaster(dev, MASTER_POINTER)->devPrivates, miDCDeviceKey, screen))
+
+/* 
+ * The core pointer buffer will point to the index of the virtual core pointer
+ * in the pCursorBuffers array. 
+ */
+typedef struct {
+    CloseScreenProcPtr	CloseScreen;
+} miDCScreenRec, *miDCScreenPtr;
+
+#define miGetDCScreen(s)	((miDCScreenPtr)(dixLookupPrivate(&(s)->devPrivates, miDCScreenKey)))
+
+/* per-cursor per-screen private data */
+typedef struct {
+    PixmapPtr		sourceBits;	    /* source bits */
+    PixmapPtr		maskBits;	    /* mask bits */
+#ifdef ARGB_CURSOR
+    PicturePtr		pPicture;
+#endif
+} miDCCursorRec, *miDCCursorPtr;
+
+Bool
+miDCInitialize (ScreenPtr pScreen, miPointerScreenFuncPtr screenFuncs)
+{
+    miDCScreenPtr   pScreenPriv;
+
+    if (!dixRegisterPrivateKey(&miDCScreenKeyRec, PRIVATE_SCREEN, 0) ||
+        !dixRegisterScreenPrivateKey(&miDCCursorBitsKeyRec, pScreen, PRIVATE_CURSOR_BITS, 0) ||
+        !dixRegisterScreenPrivateKey(&miDCDeviceKeyRec, pScreen, PRIVATE_DEVICE, 0))
+	return FALSE;
+
+    pScreenPriv = malloc(sizeof (miDCScreenRec));
+    if (!pScreenPriv)
+	return FALSE;
+
+    pScreenPriv->CloseScreen = pScreen->CloseScreen;
+    pScreen->CloseScreen = miDCCloseScreen;
+
+    dixSetPrivate(&pScreen->devPrivates, miDCScreenKey, pScreenPriv);
+
+    if (!miSpriteInitialize (pScreen, screenFuncs))
+    {
+	free((pointer) pScreenPriv);
+	return FALSE;
+    }
+    return TRUE;
+}
+
+static Bool
+miDCCloseScreen (int index, ScreenPtr pScreen)
+{
+    miDCScreenPtr   pScreenPriv;
+
+    pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
+						  miDCScreenKey);
+    pScreen->CloseScreen = pScreenPriv->CloseScreen;
+    free((pointer) pScreenPriv);
+    return (*pScreen->CloseScreen) (index, pScreen);
+}
+
+Bool
+miDCRealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)
+{
+    if (pCursor->bits->refcnt <= 1)
+	dixSetScreenPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey, pScreen, NULL);
+    return TRUE;
+}
+
+#ifdef ARGB_CURSOR
+#define EnsurePicture(picture,draw,win) (picture || miDCMakePicture(&picture,draw,win))
+
+static VisualPtr
+miDCGetWindowVisual (WindowPtr pWin)
+{
+    ScreenPtr	    pScreen = pWin->drawable.pScreen;
+    VisualID	    vid = wVisual (pWin);
+    int		    i;
+
+    for (i = 0; i < pScreen->numVisuals; i++)
+	if (pScreen->visuals[i].vid == vid)
+	    return &pScreen->visuals[i];
+    return 0;
+}
+
+static PicturePtr
+miDCMakePicture (PicturePtr *ppPicture, DrawablePtr pDraw, WindowPtr pWin)
+{
+    ScreenPtr	    pScreen = pDraw->pScreen;
+    VisualPtr	    pVisual;
+    PictFormatPtr   pFormat;
+    XID		    subwindow_mode = IncludeInferiors;
+    PicturePtr	    pPicture;
+    int		    error;
+    
+    pVisual = miDCGetWindowVisual (pWin);
+    if (!pVisual)
+	return 0;
+    pFormat = PictureMatchVisual (pScreen, pDraw->depth, pVisual);
+    if (!pFormat)
+	return 0;
+    pPicture = CreatePicture (0, pDraw, pFormat,
+			      CPSubwindowMode, &subwindow_mode,
+			      serverClient, &error);
+    *ppPicture = pPicture;
+    return pPicture;
+}
+#endif
+
+static miDCCursorPtr
+miDCRealize (ScreenPtr pScreen, CursorPtr pCursor)
+{
+    miDCCursorPtr   pPriv;
+    GCPtr	    pGC;
+    ChangeGCVal	    gcvals;
+
+    pPriv = malloc(sizeof (miDCCursorRec));
+    if (!pPriv)
+	return NULL;
+#ifdef ARGB_CURSOR
+    if (pCursor->bits->argb)
+    {
+	PixmapPtr	pPixmap;
+	PictFormatPtr	pFormat;
+	int		error;
+	
+	pFormat = PictureMatchFormat (pScreen, 32, PICT_a8r8g8b8);
+	if (!pFormat)
+	{
+	    free((pointer) pPriv);
+	    return NULL;
+	}
+	
+	pPriv->sourceBits = 0;
+	pPriv->maskBits = 0;
+	pPixmap = (*pScreen->CreatePixmap) (pScreen, pCursor->bits->width,
+					    pCursor->bits->height, 32,
+					    CREATE_PIXMAP_USAGE_SCRATCH);
+	if (!pPixmap)
+	{
+	    free((pointer) pPriv);
+	    return NULL;
+	}
+	pGC = GetScratchGC (32, pScreen);
+	if (!pGC)
+	{
+	    (*pScreen->DestroyPixmap) (pPixmap);
+	    free((pointer) pPriv);
+	    return NULL;
+	}
+	ValidateGC (&pPixmap->drawable, pGC);
+	(*pGC->ops->PutImage) (&pPixmap->drawable, pGC, 32,
+			       0, 0, pCursor->bits->width,
+			       pCursor->bits->height,
+			       0, ZPixmap, (char *) pCursor->bits->argb);
+	FreeScratchGC (pGC);
+	pPriv->pPicture = CreatePicture (0, &pPixmap->drawable,
+					pFormat, 0, 0, serverClient, &error);
+        (*pScreen->DestroyPixmap) (pPixmap);
+	if (!pPriv->pPicture)
+	{
+	    free((pointer) pPriv);
+	    return NULL;
+	}
+	dixSetScreenPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey, pScreen, pPriv);
+	return pPriv;
+    }
+    pPriv->pPicture = 0;
+#endif
+    pPriv->sourceBits = (*pScreen->CreatePixmap) (pScreen, pCursor->bits->width, pCursor->bits->height, 1, 0);
+    if (!pPriv->sourceBits)
+    {
+	free((pointer) pPriv);
+	return NULL;
+    }
+    pPriv->maskBits =  (*pScreen->CreatePixmap) (pScreen, pCursor->bits->width, pCursor->bits->height, 1, 0);
+    if (!pPriv->maskBits)
+    {
+	(*pScreen->DestroyPixmap) (pPriv->sourceBits);
+	free((pointer) pPriv);
+	return NULL;
+    }
+    dixSetScreenPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey, pScreen, pPriv);
+
+    /* create the two sets of bits, clipping as appropriate */
+
+    pGC = GetScratchGC (1, pScreen);
+    if (!pGC)
+    {
+	(void) miDCUnrealizeCursor (pScreen, pCursor);
+	return NULL;
+    }
+
+    ValidateGC ((DrawablePtr)pPriv->sourceBits, pGC);
+    (*pGC->ops->PutImage) ((DrawablePtr)pPriv->sourceBits, pGC, 1,
+			   0, 0, pCursor->bits->width, pCursor->bits->height,
+ 			   0, XYPixmap, (char *)pCursor->bits->source);
+    gcvals.val = GXand;
+    ChangeGC (NullClient, pGC, GCFunction, &gcvals);
+    ValidateGC ((DrawablePtr)pPriv->sourceBits, pGC);
+    (*pGC->ops->PutImage) ((DrawablePtr)pPriv->sourceBits, pGC, 1,
+			   0, 0, pCursor->bits->width, pCursor->bits->height,
+ 			   0, XYPixmap, (char *)pCursor->bits->mask);
+
+    /* mask bits -- pCursor->mask & ~pCursor->source */
+    gcvals.val = GXcopy;
+    ChangeGC (NullClient, pGC, GCFunction, &gcvals);
+    ValidateGC ((DrawablePtr)pPriv->maskBits, pGC);
+    (*pGC->ops->PutImage) ((DrawablePtr)pPriv->maskBits, pGC, 1,
+			   0, 0, pCursor->bits->width, pCursor->bits->height,
+ 			   0, XYPixmap, (char *)pCursor->bits->mask);
+    gcvals.val = GXandInverted;
+    ChangeGC (NullClient, pGC, GCFunction, &gcvals);
+    ValidateGC ((DrawablePtr)pPriv->maskBits, pGC);
+    (*pGC->ops->PutImage) ((DrawablePtr)pPriv->maskBits, pGC, 1,
+			   0, 0, pCursor->bits->width, pCursor->bits->height,
+ 			   0, XYPixmap, (char *)pCursor->bits->source);
+    FreeScratchGC (pGC);
+    return pPriv;
+}
+
+Bool
+miDCUnrealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)
+{
+    miDCCursorPtr   pPriv;
+
+    pPriv = (miDCCursorPtr)dixLookupScreenPrivate(&pCursor->bits->devPrivates,
+						  miDCCursorBitsKey, pScreen);
+    if (pPriv && (pCursor->bits->refcnt <= 1))
+    {
+	if (pPriv->sourceBits)
+	    (*pScreen->DestroyPixmap) (pPriv->sourceBits);
+	if (pPriv->maskBits)
+	    (*pScreen->DestroyPixmap) (pPriv->maskBits);
+#ifdef ARGB_CURSOR
+	if (pPriv->pPicture)
+	    FreePicture (pPriv->pPicture, 0);
+#endif
+	free((pointer) pPriv);
+	dixSetScreenPrivate(&pCursor->bits->devPrivates, miDCCursorBitsKey, pScreen, NULL);
+    }
+    return TRUE;
+}
+
+static void
+miDCPutBits (
+    DrawablePtr	    pDrawable,
+    miDCCursorPtr   pPriv,
+    GCPtr	    sourceGC,
+    GCPtr	    maskGC,
+    int             x_org,
+    int             y_org,
+    unsigned        w,
+    unsigned        h,
+    unsigned long   source,
+    unsigned long   mask)
+{
+    ChangeGCVal gcval;
+    int     x, y;
+
+    if (sourceGC->fgPixel != source)
+    {
+	gcval.val = source;
+	ChangeGC (NullClient, sourceGC, GCForeground, &gcval);
+    }
+    if (sourceGC->serialNumber != pDrawable->serialNumber)
+	ValidateGC (pDrawable, sourceGC);
+
+    if(sourceGC->miTranslate) 
+    {
+        x = pDrawable->x + x_org;
+        y = pDrawable->y + y_org;
+    } 
+    else
+    {
+        x = x_org;
+        y = y_org;
+    }
+
+    (*sourceGC->ops->PushPixels) (sourceGC, pPriv->sourceBits, pDrawable, w, h, x, y);
+    if (maskGC->fgPixel != mask)
+    {
+	gcval.val = mask;
+	ChangeGC (NullClient, maskGC, GCForeground, &gcval);
+    }
+    if (maskGC->serialNumber != pDrawable->serialNumber)
+	ValidateGC (pDrawable, maskGC);
+
+    if(maskGC->miTranslate) 
+    {
+        x = pDrawable->x + x_org;
+        y = pDrawable->y + y_org;
+    } 
+    else
+    {
+        x = x_org;
+        y = y_org;
+    }
+
+    (*maskGC->ops->PushPixels) (maskGC, pPriv->maskBits, pDrawable, w, h, x, y);
+}
+
+static GCPtr
+miDCMakeGC(WindowPtr pWin)
+{
+    GCPtr pGC;
+    int   status;
+    XID   gcvals[2];
+
+    gcvals[0] = IncludeInferiors;
+    gcvals[1] = FALSE;
+    pGC = CreateGC((DrawablePtr)pWin,
+		   GCSubwindowMode|GCGraphicsExposures, gcvals, &status,
+		   (XID)0, serverClient);
+    return pGC;
+}
+
+
+Bool
+miDCPutUpCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
+                 int x, int y, unsigned long source, unsigned long mask)
+{
+    miDCCursorPtr   pPriv;
+    miDCBufferPtr   pBuffer;
+    WindowPtr	    pWin;
+
+    pPriv = (miDCCursorPtr)dixLookupScreenPrivate(&pCursor->bits->devPrivates,
+						  miDCCursorBitsKey, pScreen);
+    if (!pPriv)
+    {
+	pPriv = miDCRealize(pScreen, pCursor);
+	if (!pPriv)
+	    return FALSE;
+    }
+
+    pWin = pScreen->root;
+    pBuffer = miGetDCDevice(pDev, pScreen);
+
+#ifdef ARGB_CURSOR
+    if (pPriv->pPicture)
+    {
+	if (!EnsurePicture(pBuffer->pRootPicture, &pWin->drawable, pWin))
+	    return FALSE;
+	CompositePicture (PictOpOver,
+			  pPriv->pPicture,
+			  NULL,
+			  pBuffer->pRootPicture,
+			  0, 0, 0, 0, 
+			  x, y, 
+			  pCursor->bits->width,
+			  pCursor->bits->height);
+    }
+    else
+#endif
+    {
+	miDCPutBits ((DrawablePtr)pWin, pPriv,
+		     pBuffer->pSourceGC, pBuffer->pMaskGC,
+		     x, y, pCursor->bits->width, pCursor->bits->height,
+		     source, mask);
+    }
+    return TRUE;
+}
+
+Bool
+miDCSaveUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
+                     int x, int y, int w, int h)
+{
+    miDCBufferPtr   pBuffer;
+    PixmapPtr	    pSave;
+    WindowPtr	    pWin;
+    GCPtr	    pGC;
+
+    pBuffer = miGetDCDevice(pDev, pScreen);
+
+    pSave = pBuffer->pSave;
+    pWin = pScreen->root;
+    if (!pSave || pSave->drawable.width < w || pSave->drawable.height < h)
+    {
+	if (pSave)
+	    (*pScreen->DestroyPixmap) (pSave);
+	pBuffer->pSave = pSave =
+		(*pScreen->CreatePixmap) (pScreen, w, h, pScreen->rootDepth, 0);
+	if (!pSave)
+	    return FALSE;
+    }
+
+    pGC = pBuffer->pSaveGC;
+    if (pSave->drawable.serialNumber != pGC->serialNumber)
+	ValidateGC ((DrawablePtr) pSave, pGC);
+    (*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC,
+			    x, y, w, h, 0, 0);
+    return TRUE;
+}
+
+Bool
+miDCRestoreUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
+                        int x, int y, int w, int h)
+{
+    miDCBufferPtr   pBuffer;
+    PixmapPtr	    pSave;
+    WindowPtr	    pWin;
+    GCPtr	    pGC;
+
+    pBuffer = miGetDCDevice(pDev, pScreen);
+    pSave = pBuffer->pSave;
+
+    pWin = pScreen->root;
+    if (!pSave)
+	return FALSE;
+
+    pGC = pBuffer->pRestoreGC;
+    if (pWin->drawable.serialNumber != pGC->serialNumber)
+	ValidateGC ((DrawablePtr) pWin, pGC);
+    (*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,
+			    0, 0, w, h, x, y);
+    return TRUE;
+}
+
+Bool
+miDCDeviceInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)
+{
+    miDCBufferPtr   pBuffer;
+    WindowPtr       pWin;
+    int             i;
+
+    if (!DevHasCursor(pDev))
+        return TRUE;
+
+    for (i = 0; i < screenInfo.numScreens; i++)
+    {
+        pScreen = screenInfo.screens[i];
+
+        pBuffer = calloc(1, sizeof(miDCBufferRec));
+        if (!pBuffer)
+            goto failure;
+
+        dixSetScreenPrivate(&pDev->devPrivates, miDCDeviceKey, pScreen, pBuffer);
+        pWin = pScreen->root;
+
+        pBuffer->pSourceGC = miDCMakeGC(pWin);
+        if (!pBuffer->pSourceGC)
+            goto failure;
+
+        pBuffer->pMaskGC = miDCMakeGC(pWin);
+        if (!pBuffer->pMaskGC)
+            goto failure;
+
+        pBuffer->pSaveGC = miDCMakeGC(pWin);
+        if (!pBuffer->pSaveGC)
+            goto failure;
+
+        pBuffer->pRestoreGC = miDCMakeGC(pWin);
+        if (!pBuffer->pRestoreGC)
+            goto failure;
+
+#ifdef ARGB_CURSOR
+        pBuffer->pRootPicture = NULL;
+#endif
+
+        /* (re)allocated lazily depending on the cursor size */
+        pBuffer->pSave = NULL;
+    }
+
+    return TRUE;
+
+failure:
+
+    miDCDeviceCleanup(pDev, pScreen);
+
+    return FALSE;
+}
+
+void
+miDCDeviceCleanup(DeviceIntPtr pDev, ScreenPtr pScreen)
+{
+    miDCBufferPtr   pBuffer;
+    int             i;
+
+    if (DevHasCursor(pDev))
+    {
+        for (i = 0; i < screenInfo.numScreens; i++)
+        {
+            pScreen = screenInfo.screens[i];
+
+            pBuffer = miGetDCDevice(pDev, pScreen);
+
+            if (pBuffer)
+            {
+                if (pBuffer->pSourceGC) FreeGC(pBuffer->pSourceGC, (GContext) 0);
+                if (pBuffer->pMaskGC) FreeGC(pBuffer->pMaskGC, (GContext) 0);
+                if (pBuffer->pSaveGC) FreeGC(pBuffer->pSaveGC, (GContext) 0);
+                if (pBuffer->pRestoreGC) FreeGC(pBuffer->pRestoreGC, (GContext) 0);
+
+#ifdef ARGB_CURSOR
+                /* If a pRootPicture was allocated for a root window, it
+                 * is freed when that root window is destroyed, so don't
+                 * free it again here. */
+#endif
+
+                if (pBuffer->pSave) (*pScreen->DestroyPixmap)(pBuffer->pSave);
+
+                free(pBuffer);
+                dixSetScreenPrivate(&pDev->devPrivates, miDCDeviceKey, pScreen, NULL);
+            }
+        }
+    }
+}