Merge remote-tracking branch 'origin/released'

Conflicts:
	mesalib/src/mesa/main/version.c
	xorg-server/include/globals.h
	xorg-server/mi/misprite.c
	xorg-server/mi/mivaltree.c
	xorg-server/os/utils.c

1 files changed, 1040 insertions, 1045 deletions

diff --git a/xorg-server/mi/misprite.c b/xorg-server/mi/misprite.c
index 64c6ce47b..f0c008143 100644
--- a/xorg-server/mi/misprite.c
+++ b/xorg-server/mi/misprite.c
@@ -1,1045 +1,1040 @@
-/*

- * misprite.c

- *

- * machine independent software sprite 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   <X11/Xproto.h>

-#include   "misc.h"

-#include   "pixmapstr.h"

-#include   "input.h"

-#include   "mi.h"

-#include   "cursorstr.h"

-#include   <X11/fonts/font.h>

-#include   "scrnintstr.h"

-#include   "colormapst.h"

-#include   "windowstr.h"

-#include   "gcstruct.h"

-#include   "mipointer.h"

-#include   "misprite.h"

-#include   "dixfontstr.h"

-#include   <X11/fonts/fontstruct.h>

-#include   "inputstr.h"

-#include   "damage.h"

-

-typedef struct {

-    CursorPtr	    pCursor;

-    int		    x;			/* cursor hotspot */

-    int		    y;

-    BoxRec	    saved;		/* saved area from the screen */

-    Bool	    isUp;		/* cursor in frame buffer */

-    Bool	    shouldBeUp;		/* cursor should be displayed */

-    WindowPtr	    pCacheWin;		/* window the cursor last seen in */

-    Bool	    isInCacheWin;

-    Bool	    checkPixels;	/* check colormap collision */

-    ScreenPtr       pScreen;

-} miCursorInfoRec, *miCursorInfoPtr;

-

-/*

- * per screen information

- */

-

-typedef struct {

-    /* screen procedures */

-    CloseScreenProcPtr			CloseScreen;

-    GetImageProcPtr			GetImage;

-    GetSpansProcPtr			GetSpans;

-    SourceValidateProcPtr		SourceValidate;

-    

-    /* window procedures */

-    CopyWindowProcPtr			CopyWindow;

-    

-    /* colormap procedures */

-    InstallColormapProcPtr		InstallColormap;

-    StoreColorsProcPtr			StoreColors;

-    

-    /* os layer procedures */

-    ScreenBlockHandlerProcPtr		BlockHandler;

-    

-    /* device cursor procedures */

-    DeviceCursorInitializeProcPtr       DeviceCursorInitialize;

-    DeviceCursorCleanupProcPtr          DeviceCursorCleanup;

-

-    xColorItem	    colors[2];

-    ColormapPtr     pInstalledMap;

-    ColormapPtr     pColormap;

-    VisualPtr	    pVisual;

-    DamagePtr	    pDamage;		/* damage tracking structure */

-    Bool            damageRegistered;

-    int             numberOfCursors;

-} miSpriteScreenRec, *miSpriteScreenPtr;

-

-#define SOURCE_COLOR	0

-#define MASK_COLOR	1

-

-/*

- * Overlap BoxPtr and Box elements

- */

-#define BOX_OVERLAP(pCbox,X1,Y1,X2,Y2) \

- 	(((pCbox)->x1 <= (X2)) && ((X1) <= (pCbox)->x2) && \

-	 ((pCbox)->y1 <= (Y2)) && ((Y1) <= (pCbox)->y2))

-

-/*

- * Overlap BoxPtr, origins, and rectangle

- */

-#define ORG_OVERLAP(pCbox,xorg,yorg,x,y,w,h) \

-    BOX_OVERLAP((pCbox),(x)+(xorg),(y)+(yorg),(x)+(xorg)+(w),(y)+(yorg)+(h))

-

-/*

- * Overlap BoxPtr, origins and RectPtr

- */

-#define ORGRECT_OVERLAP(pCbox,xorg,yorg,pRect) \

-    ORG_OVERLAP((pCbox),(xorg),(yorg),(pRect)->x,(pRect)->y, \

-		(int)((pRect)->width), (int)((pRect)->height))

-/*

- * Overlap BoxPtr and horizontal span

- */

-#define SPN_OVERLAP(pCbox,y,x,w) BOX_OVERLAP((pCbox),(x),(y),(x)+(w),(y))

-

-#define LINE_SORT(x1,y1,x2,y2) \

-{ int _t; \

-  if (x1 > x2) { _t = x1; x1 = x2; x2 = _t; } \

-  if (y1 > y2) { _t = y1; y1 = y2; y2 = _t; } }

-

-#define LINE_OVERLAP(pCbox,x1,y1,x2,y2,lw2) \

-    BOX_OVERLAP((pCbox), (x1)-(lw2), (y1)-(lw2), (x2)+(lw2), (y2)+(lw2))

-

-

-#define SPRITE_DEBUG_ENABLE 0

-#if SPRITE_DEBUG_ENABLE

-#define SPRITE_DEBUG(x)	ErrorF x

-#else

-#define SPRITE_DEBUG(x)

-#endif

-

-#define MISPRITE(dev) \

-    (IsFloating(dev) ? \

-       (miCursorInfoPtr)dixLookupPrivate(&dev->devPrivates, miSpriteDevPrivatesKey) : \

-       (miCursorInfoPtr)dixLookupPrivate(&(GetMaster(dev, MASTER_POINTER))->devPrivates, miSpriteDevPrivatesKey))

-

-static void

-miSpriteDisableDamage(ScreenPtr pScreen, miSpriteScreenPtr pScreenPriv)

-{

-    if (pScreenPriv->damageRegistered) {

-	DamageUnregister (&(pScreen->GetScreenPixmap(pScreen)->drawable),

-			  pScreenPriv->pDamage);

-	pScreenPriv->damageRegistered = 0;

-    }

-}

-

-static void

-miSpriteEnableDamage(ScreenPtr pScreen, miSpriteScreenPtr pScreenPriv)

-{

-    if (!pScreenPriv->damageRegistered) {

-	pScreenPriv->damageRegistered = 1;

-	DamageRegister (&(pScreen->GetScreenPixmap(pScreen)->drawable),

-			pScreenPriv->pDamage);

-    }

-}

-

-static void

-miSpriteIsUp(miCursorInfoPtr pDevCursor)

-{

-    pDevCursor->isUp = TRUE;

-}

-

-static void

-miSpriteIsDown(miCursorInfoPtr pDevCursor)

-{

-    pDevCursor->isUp = FALSE;

-}

-

-/*

- * screen wrappers

- */

-

-static DevPrivateKeyRec miSpriteScreenKeyRec;

-#define miSpriteScreenKey (&miSpriteScreenKeyRec)

-#define GetSpriteScreen(pScreen) \

-	(dixLookupPrivate(&(pScreen)->devPrivates, miSpriteScreenKey))

-static DevPrivateKeyRec miSpriteDevPrivatesKeyRec;

-#define miSpriteDevPrivatesKey (&miSpriteDevPrivatesKeyRec)

-

-static Bool	    miSpriteCloseScreen(int i, ScreenPtr pScreen);

-static void	    miSpriteGetImage(DrawablePtr pDrawable, int sx, int sy,

-				     int w, int h, unsigned int format,

-				     unsigned long planemask, char *pdstLine);

-static void	    miSpriteGetSpans(DrawablePtr pDrawable, int wMax,

-				     DDXPointPtr ppt, int *pwidth, int nspans,

-				     char *pdstStart);

-static void	    miSpriteSourceValidate(DrawablePtr pDrawable, int x, int y,

-					   int width, int height,

-					   unsigned int subWindowMode);

-static void	    miSpriteCopyWindow (WindowPtr pWindow,

-					DDXPointRec ptOldOrg,

-					RegionPtr prgnSrc);

-static void	    miSpriteBlockHandler(int i, pointer blockData,

-					 pointer pTimeout,

-					 pointer pReadMask);

-static void	    miSpriteInstallColormap(ColormapPtr pMap);

-static void	    miSpriteStoreColors(ColormapPtr pMap, int ndef,

-					xColorItem *pdef);

-

-static void	    miSpriteComputeSaved(DeviceIntPtr pDev,

-                                         ScreenPtr pScreen);

-

-static Bool         miSpriteDeviceCursorInitialize(DeviceIntPtr pDev,

-                                                   ScreenPtr pScreen);

-static void         miSpriteDeviceCursorCleanup(DeviceIntPtr pDev,

-                                                ScreenPtr pScreen);

-

-#define SCREEN_PROLOGUE(pPriv, pScreen, field) ((pScreen)->field = \

-   (pPriv)->field)

-#define SCREEN_EPILOGUE(pPriv, pScreen, field)\

-    ((pPriv)->field = (pScreen)->field, (pScreen)->field = miSprite##field)

-

-/*

- * pointer-sprite method table

- */

-

-static Bool miSpriteRealizeCursor(DeviceIntPtr pDev, ScreenPtr pScreen,

-                                  CursorPtr pCursor);

-static Bool miSpriteUnrealizeCursor(DeviceIntPtr pDev, ScreenPtr pScreen,

-                                    CursorPtr pCursor);

-static void miSpriteSetCursor(DeviceIntPtr pDev, ScreenPtr pScreen,

-                              CursorPtr pCursor, int x, int y);

-static void miSpriteMoveCursor(DeviceIntPtr pDev, ScreenPtr pScreen,

-                               int x, int y);

-

-miPointerSpriteFuncRec miSpritePointerFuncs = {

-    miSpriteRealizeCursor,

-    miSpriteUnrealizeCursor,

-    miSpriteSetCursor,

-    miSpriteMoveCursor,

-    miSpriteDeviceCursorInitialize,

-    miSpriteDeviceCursorCleanup,

-};

-

-/*

- * other misc functions

- */

-

-static void miSpriteRemoveCursor(DeviceIntPtr pDev,

-                                 ScreenPtr pScreen);

-static void miSpriteSaveUnderCursor(DeviceIntPtr pDev,

-                                 ScreenPtr pScreen);

-static void miSpriteRestoreCursor(DeviceIntPtr pDev,

-                                 ScreenPtr pScreen);

-

-static void

-miSpriteRegisterBlockHandler(ScreenPtr pScreen, miSpriteScreenPtr pScreenPriv)

-{

-    if (!pScreenPriv->BlockHandler) {

-        pScreenPriv->BlockHandler = pScreen->BlockHandler;

-        pScreen->BlockHandler = miSpriteBlockHandler;

-    }

-}

-

-static void

-miSpriteReportDamage (DamagePtr pDamage, RegionPtr pRegion, void *closure)

-{

-    ScreenPtr		    pScreen = closure;

-    miCursorInfoPtr         pCursorInfo;

-    DeviceIntPtr            pDev;

-

-    for (pDev = inputInfo.devices; pDev; pDev = pDev->next)

-    {

-        if (DevHasCursor(pDev))

-        {

-            pCursorInfo = MISPRITE(pDev);

-

-            if (pCursorInfo->isUp &&

-                pCursorInfo->pScreen == pScreen &&

-                RegionContainsRect(pRegion, &pCursorInfo->saved) != rgnOUT)

-            {

-                SPRITE_DEBUG(("Damage remove\n"));

-                miSpriteRemoveCursor (pDev, pScreen);

-            }

-        }

-    }

-}

-

-/*

- * miSpriteInitialize -- called from device-dependent screen

- * initialization proc after all of the function pointers have

- * been stored in the screen structure.

- */

-

-Bool

-miSpriteInitialize (ScreenPtr               pScreen,

-                    miPointerScreenFuncPtr  screenFuncs)

-{

-    miSpriteScreenPtr	pScreenPriv;

-    VisualPtr		pVisual;

-

-    if (!DamageSetup (pScreen))

-	return FALSE;

-

-    if (!dixRegisterPrivateKey(&miSpriteScreenKeyRec, PRIVATE_SCREEN, 0))

-	return FALSE;

-

-    if (!dixRegisterPrivateKey(&miSpriteDevPrivatesKeyRec, PRIVATE_DEVICE, sizeof(miCursorInfoRec)))

-	return FALSE;

-

-    pScreenPriv = malloc(sizeof (miSpriteScreenRec));

-    if (!pScreenPriv)

-	return FALSE;

-

-    pScreenPriv->pDamage = DamageCreate (miSpriteReportDamage,

-					 NULL,

-					 DamageReportRawRegion,

-					 TRUE,

-					 pScreen,

-					 pScreen);

-

-    if (!miPointerInitialize (pScreen, &miSpritePointerFuncs, screenFuncs,TRUE))

-    {

-	free(pScreenPriv);

-	return FALSE;

-    }

-    for (pVisual = pScreen->visuals;

-	 pVisual->vid != pScreen->rootVisual;

-	 pVisual++)

-	;

-    pScreenPriv->pVisual = pVisual;

-    pScreenPriv->CloseScreen = pScreen->CloseScreen;

-    pScreenPriv->GetImage = pScreen->GetImage;

-    pScreenPriv->GetSpans = pScreen->GetSpans;

-    pScreenPriv->SourceValidate = pScreen->SourceValidate;

-

-    pScreenPriv->CopyWindow = pScreen->CopyWindow;

-

-    pScreenPriv->InstallColormap = pScreen->InstallColormap;

-    pScreenPriv->StoreColors = pScreen->StoreColors;

-

-    pScreenPriv->BlockHandler = NULL;

-

-    pScreenPriv->DeviceCursorInitialize = pScreen->DeviceCursorInitialize;

-    pScreenPriv->DeviceCursorCleanup = pScreen->DeviceCursorCleanup;

-

-    pScreenPriv->pInstalledMap = NULL;

-    pScreenPriv->pColormap = NULL;

-    pScreenPriv->colors[SOURCE_COLOR].red = 0;

-    pScreenPriv->colors[SOURCE_COLOR].green = 0;

-    pScreenPriv->colors[SOURCE_COLOR].blue = 0;

-    pScreenPriv->colors[MASK_COLOR].red = 0;

-    pScreenPriv->colors[MASK_COLOR].green = 0;

-    pScreenPriv->colors[MASK_COLOR].blue = 0;

-    pScreenPriv->damageRegistered = 0;

-    pScreenPriv->numberOfCursors = 0;

-

-    dixSetPrivate(&pScreen->devPrivates, miSpriteScreenKey, pScreenPriv);

-

-    pScreen->CloseScreen = miSpriteCloseScreen;

-    pScreen->GetImage = miSpriteGetImage;

-    pScreen->GetSpans = miSpriteGetSpans;

-    pScreen->SourceValidate = miSpriteSourceValidate;

-

-    pScreen->CopyWindow = miSpriteCopyWindow;

-    pScreen->InstallColormap = miSpriteInstallColormap;

-    pScreen->StoreColors = miSpriteStoreColors;

-

-    return TRUE;

-}

-

-/*

- * Screen wrappers

- */

-

-/*

- * CloseScreen wrapper -- unwrap everything, free the private data

- * and call the wrapped function

- */

-

-static Bool

-miSpriteCloseScreen (int i, ScreenPtr pScreen)

-{

-    miSpriteScreenPtr   pScreenPriv = GetSpriteScreen(pScreen);

-

-    pScreen->CloseScreen = pScreenPriv->CloseScreen;

-    pScreen->GetImage = pScreenPriv->GetImage;

-    pScreen->GetSpans = pScreenPriv->GetSpans;

-    pScreen->SourceValidate = pScreenPriv->SourceValidate;

-    pScreen->InstallColormap = pScreenPriv->InstallColormap;

-    pScreen->StoreColors = pScreenPriv->StoreColors;

-

-    DamageDestroy (pScreenPriv->pDamage);

-

-    free(pScreenPriv);

-

-    return (*pScreen->CloseScreen) (i, pScreen);

-}

-

-static void

-miSpriteGetImage (DrawablePtr pDrawable, int sx, int sy, int w, int h,

-                  unsigned int format, unsigned long planemask,

-                  char *pdstLine)

-{

-    ScreenPtr           pScreen = pDrawable->pScreen;

-    DeviceIntPtr        pDev;

-    miCursorInfoPtr     pCursorInfo;

-    miSpriteScreenPtr   pPriv = GetSpriteScreen(pScreen);

-

-    SCREEN_PROLOGUE (pPriv, pScreen, GetImage);

-

-    if (pDrawable->type == DRAWABLE_WINDOW)

-    {

-        for(pDev = inputInfo.devices; pDev; pDev = pDev->next)

-        {

-            if (DevHasCursor(pDev))

-            {

-                 pCursorInfo = MISPRITE(pDev);

-                 if (pCursorInfo->isUp && pCursorInfo->pScreen == pScreen &&

-                      ORG_OVERLAP(&pCursorInfo->saved,pDrawable->x,pDrawable->y,

-                                  sx, sy, w, h))

-                 {

-                     SPRITE_DEBUG (("GetImage remove\n"));

-                     miSpriteRemoveCursor (pDev, pScreen);

-                 }

-            }

-        }

-    }

-

-    (*pScreen->GetImage) (pDrawable, sx, sy, w, h,

-			  format, planemask, pdstLine);

-

-    SCREEN_EPILOGUE (pPriv, pScreen, GetImage);

-}

-

-static void

-miSpriteGetSpans (DrawablePtr pDrawable, int wMax, DDXPointPtr ppt,

-                  int *pwidth, int nspans, char *pdstStart)

-{

-    ScreenPtr		    pScreen = pDrawable->pScreen;

-    DeviceIntPtr            pDev;

-    miCursorInfoPtr         pCursorInfo;

-    miSpriteScreenPtr       pPriv = GetSpriteScreen(pScreen);

-

-    SCREEN_PROLOGUE (pPriv, pScreen, GetSpans);

-

-    if (pDrawable->type == DRAWABLE_WINDOW)

-    {

-        for(pDev = inputInfo.devices; pDev; pDev = pDev->next)

-        {

-            if (DevHasCursor(pDev))

-            {

-                pCursorInfo = MISPRITE(pDev);

-

-                if (pCursorInfo->isUp && pCursorInfo->pScreen == pScreen)

-                {

-                    DDXPointPtr    pts;

-                    int    	       *widths;

-                    int    	       nPts;

-                    int    	       xorg,

-                                   yorg;

-

-                    xorg = pDrawable->x;

-                    yorg = pDrawable->y;

-

-                    for (pts = ppt, widths = pwidth, nPts = nspans;

-                            nPts--;

-                            pts++, widths++)

-                    {

-                        if (SPN_OVERLAP(&pCursorInfo->saved,pts->y+yorg,

-                                    pts->x+xorg,*widths))

-                        {

-                            SPRITE_DEBUG (("GetSpans remove\n"));

-                            miSpriteRemoveCursor (pDev, pScreen);

-                            break;

-                        }

-                    }

-                }

-            }

-        }

-    }

-

-    (*pScreen->GetSpans) (pDrawable, wMax, ppt, pwidth, nspans, pdstStart);

-

-    SCREEN_EPILOGUE (pPriv, pScreen, GetSpans);

-}

-

-static void

-miSpriteSourceValidate (DrawablePtr pDrawable, int x, int y, int width,

-                        int height, unsigned int subWindowMode)

-{

-    ScreenPtr		    pScreen = pDrawable->pScreen;

-    DeviceIntPtr            pDev;

-    miCursorInfoPtr         pCursorInfo;

-    miSpriteScreenPtr       pPriv = GetSpriteScreen(pScreen);

-

-    SCREEN_PROLOGUE (pPriv, pScreen, SourceValidate);

-

-    if (pDrawable->type == DRAWABLE_WINDOW)

-    {

-	for(pDev = inputInfo.devices; pDev; pDev = pDev->next)

-	{

-	    if (DevHasCursor(pDev))

-	    {

-		pCursorInfo = MISPRITE(pDev);

-		if (pCursorInfo && pCursorInfo->isUp && pCursorInfo->pScreen == pScreen &&

-		    ORG_OVERLAP(&pCursorInfo->saved, pDrawable->x, pDrawable->y,

-				x, y, width, height))

-		{

-		    SPRITE_DEBUG (("SourceValidate remove\n"));

-		    miSpriteRemoveCursor (pDev, pScreen);

-		}

-	    }

-	}

-    }

-

-    if (pScreen->SourceValidate)

-	(*pScreen->SourceValidate) (pDrawable, x, y, width, height, subWindowMode);

-

-    SCREEN_EPILOGUE (pPriv, pScreen, SourceValidate);

-}

-

-static void

-miSpriteCopyWindow (WindowPtr pWindow, DDXPointRec ptOldOrg, RegionPtr prgnSrc)

-{

-    ScreenPtr	pScreen = pWindow->drawable.pScreen;

-    DeviceIntPtr            pDev;

-    miCursorInfoPtr         pCursorInfo;

-    miSpriteScreenPtr       pPriv = GetSpriteScreen(pScreen);

-

-    SCREEN_PROLOGUE (pPriv, pScreen, CopyWindow);

-

-    for(pDev = inputInfo.devices; pDev; pDev = pDev->next)

-    {

-        if (DevHasCursor(pDev))

-        {

-            pCursorInfo = MISPRITE(pDev);

-            /*

-             * Damage will take care of destination check

-             */

-            if (pCursorInfo && pCursorInfo->isUp && pCursorInfo->pScreen == pScreen &&

-                    RegionContainsRect(prgnSrc, &pCursorInfo->saved) != rgnOUT)

-            {

-                SPRITE_DEBUG (("CopyWindow remove\n"));

-                miSpriteRemoveCursor (pDev, pScreen);

-            }

-        }

-    }

-

-    (*pScreen->CopyWindow) (pWindow, ptOldOrg, prgnSrc);

-    SCREEN_EPILOGUE (pPriv, pScreen, CopyWindow);

-}

-

-static void

-miSpriteBlockHandler (int i, pointer blockData, pointer pTimeout,

-                      pointer pReadmask)

-{

-    ScreenPtr		pScreen = screenInfo.screens[i];

-    miSpriteScreenPtr	pPriv = GetSpriteScreen(pScreen);

-    DeviceIntPtr            pDev;

-    miCursorInfoPtr         pCursorInfo;

-    Bool                WorkToDo = FALSE;

-

-    for(pDev = inputInfo.devices; pDev; pDev = pDev->next)

-    {

-        if (DevHasCursor(pDev))

-        {

-            pCursorInfo = MISPRITE(pDev);

-            if (pCursorInfo && !pCursorInfo->isUp

-                    && pCursorInfo->pScreen == pScreen

-                    && pCursorInfo->shouldBeUp)

-            {

-                SPRITE_DEBUG (("BlockHandler save"));

-                miSpriteSaveUnderCursor (pDev, pScreen);

-            }

-        }

-    }

-    for(pDev = inputInfo.devices; pDev; pDev = pDev->next)

-    {

-        if (DevHasCursor(pDev))

-        {

-            pCursorInfo = MISPRITE(pDev);

-            if (pCursorInfo && !pCursorInfo->isUp &&

-                    pCursorInfo->pScreen == pScreen &&

-                    pCursorInfo->shouldBeUp)

-            {

-                SPRITE_DEBUG (("BlockHandler restore\n"));

-                miSpriteRestoreCursor (pDev, pScreen);

-                if (!pCursorInfo->isUp)

-                    WorkToDo = TRUE;

-            }

-        }

-    }

-

-    SCREEN_PROLOGUE(pPriv, pScreen, BlockHandler);

-

-    (*pScreen->BlockHandler) (i, blockData, pTimeout, pReadmask);

-

-    if (WorkToDo)

-        SCREEN_EPILOGUE(pPriv, pScreen, BlockHandler);

-    else

-        pPriv->BlockHandler = NULL;

-}

-

-static void

-miSpriteInstallColormap (ColormapPtr pMap)

-{

-    ScreenPtr		pScreen = pMap->pScreen;

-    miSpriteScreenPtr	pPriv = GetSpriteScreen(pScreen);

-

-    SCREEN_PROLOGUE(pPriv, pScreen, InstallColormap);

-

-    (*pScreen->InstallColormap) (pMap);

-

-    SCREEN_EPILOGUE(pPriv, pScreen, InstallColormap);

-

-    /* InstallColormap can be called before devices are initialized. */

-    pPriv->pInstalledMap = pMap;

-    if (pPriv->pColormap != pMap)

-    {

-        DeviceIntPtr pDev;

-        miCursorInfoPtr     pCursorInfo;

-        for (pDev = inputInfo.devices; pDev; pDev = pDev->next)

-        {

-            if (DevHasCursor(pDev))

-            {

-                pCursorInfo = MISPRITE(pDev);

-                if (pCursorInfo)

-                {

-                  pCursorInfo->checkPixels = TRUE;

-                  if (pCursorInfo->isUp && pCursorInfo->pScreen == pScreen)

-                      miSpriteRemoveCursor(pDev, pScreen);

-                }

-            }

-        }

-

-    }

-}

-

-static void

-miSpriteStoreColors (ColormapPtr pMap, int ndef, xColorItem *pdef)

-{

-    ScreenPtr		pScreen = pMap->pScreen;

-    miSpriteScreenPtr	pPriv = GetSpriteScreen(pScreen);

-    int			i;

-    int			updated;

-    VisualPtr		pVisual;

-    DeviceIntPtr        pDev;

-    miCursorInfoPtr     pCursorInfo;

-

-    SCREEN_PROLOGUE(pPriv, pScreen, StoreColors);

-

-    (*pScreen->StoreColors) (pMap, ndef, pdef);

-

-    SCREEN_EPILOGUE(pPriv, pScreen, StoreColors);

-

-    if (pPriv->pColormap == pMap)

-    {

-        updated = 0;

-        pVisual = pMap->pVisual;

-        if (pVisual->class == DirectColor)

-        {

-            /* Direct color - match on any of the subfields */

-

-#define MaskMatch(a,b,mask) (((a) & (pVisual->mask)) == ((b) & (pVisual->mask)))

-

-#define UpdateDAC(dev, plane,dac,mask) {\

-    if (MaskMatch (dev->colors[plane].pixel,pdef[i].pixel,mask)) {\

-	dev->colors[plane].dac = pdef[i].dac; \

-	updated = 1; \

-    } \

-}

-

-#define CheckDirect(dev, plane) \

-	    UpdateDAC(dev, plane,red,redMask) \

-	    UpdateDAC(dev, plane,green,greenMask) \

-	    UpdateDAC(dev, plane,blue,blueMask)

-

-            for (i = 0; i < ndef; i++)

-            {

-                CheckDirect (pPriv, SOURCE_COLOR)

-                CheckDirect (pPriv, MASK_COLOR)

-            }

-        }

-        else

-        {

-            /* PseudoColor/GrayScale - match on exact pixel */

-            for (i = 0; i < ndef; i++)

-            {

-                if (pdef[i].pixel ==

-                        pPriv->colors[SOURCE_COLOR].pixel)

-                {

-                    pPriv->colors[SOURCE_COLOR] = pdef[i];

-                    if (++updated == 2)

-                        break;

-                }

-                if (pdef[i].pixel ==

-                        pPriv->colors[MASK_COLOR].pixel)

-                {

-                    pPriv->colors[MASK_COLOR] = pdef[i];

-                    if (++updated == 2)

-                        break;

-                }

-            }

-        }

-        if (updated)

-        {

-            for(pDev = inputInfo.devices; pDev; pDev = pDev->next)

-            {

-                if (DevHasCursor(pDev))

-                {

-                    pCursorInfo = MISPRITE(pDev);

-                    pCursorInfo->checkPixels = TRUE;

-                    if (pCursorInfo->isUp && pCursorInfo->pScreen == pScreen)

-                        miSpriteRemoveCursor (pDev, pScreen);

-                }

-            }

-        }

-    }

-}

-

-static void

-miSpriteFindColors (miCursorInfoPtr pDevCursor, ScreenPtr pScreen)

-{

-    miSpriteScreenPtr	pScreenPriv = GetSpriteScreen(pScreen);

-    CursorPtr		pCursor;

-    xColorItem		*sourceColor, *maskColor;

-

-    pCursor = pDevCursor->pCursor;

-    sourceColor = &pScreenPriv->colors[SOURCE_COLOR];

-    maskColor = &pScreenPriv->colors[MASK_COLOR];

-    if (pScreenPriv->pColormap != pScreenPriv->pInstalledMap ||

-	!(pCursor->foreRed == sourceColor->red &&

-	  pCursor->foreGreen == sourceColor->green &&

-          pCursor->foreBlue == sourceColor->blue &&

-	  pCursor->backRed == maskColor->red &&

-	  pCursor->backGreen == maskColor->green &&

-	  pCursor->backBlue == maskColor->blue))

-    {

-	pScreenPriv->pColormap = pScreenPriv->pInstalledMap;

-	sourceColor->red = pCursor->foreRed;

-	sourceColor->green = pCursor->foreGreen;

-	sourceColor->blue = pCursor->foreBlue;

-	FakeAllocColor (pScreenPriv->pColormap, sourceColor);

-	maskColor->red = pCursor->backRed;

-	maskColor->green = pCursor->backGreen;

-	maskColor->blue = pCursor->backBlue;

-	FakeAllocColor (pScreenPriv->pColormap, maskColor);

-	/* "free" the pixels right away, don't let this confuse you */

-	FakeFreeColor(pScreenPriv->pColormap, sourceColor->pixel);

-	FakeFreeColor(pScreenPriv->pColormap, maskColor->pixel);

-    }

-

-    pDevCursor->checkPixels = FALSE;

-

-}

-

-/*

- * miPointer interface routines

- */

-

-#define SPRITE_PAD  8

-

-static Bool

-miSpriteRealizeCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor)

-{

-    miCursorInfoPtr pCursorInfo;

-

-    if (IsFloating(pDev))

-        return FALSE;

-

-    pCursorInfo = MISPRITE(pDev);

-

-    if (pCursor == pCursorInfo->pCursor)

-	pCursorInfo->checkPixels = TRUE;

-

-    return miDCRealizeCursor(pScreen, pCursor);

-}

-

-static Bool

-miSpriteUnrealizeCursor(DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor)

-{

-    return miDCUnrealizeCursor(pScreen, pCursor);

-}

-

-static void

-miSpriteSetCursor (DeviceIntPtr pDev, ScreenPtr pScreen,

-                   CursorPtr pCursor, int x, int y)

-{

-    miCursorInfoPtr     pPointer;

-    miSpriteScreenPtr   pScreenPriv;

-

-    if (IsFloating(pDev))

-        return;

-

-    pPointer = MISPRITE(pDev);

-    pScreenPriv = GetSpriteScreen(pScreen);

-

-    if (!pCursor)

-    {

-	if (pPointer->shouldBeUp)

-	    --pScreenPriv->numberOfCursors;

-    	pPointer->shouldBeUp = FALSE;

-    	if (pPointer->isUp)

-	    miSpriteRemoveCursor (pDev, pScreen);

-	if (pScreenPriv->numberOfCursors == 0)

-	    miSpriteDisableDamage(pScreen, pScreenPriv);

-	pPointer->pCursor = 0;

-	return;

-    }

-    if (!pPointer->shouldBeUp)

-	pScreenPriv->numberOfCursors++;

-    pPointer->shouldBeUp = TRUE;

-    if (!pPointer->isUp)

-	miSpriteRegisterBlockHandler(pScreen, pScreenPriv);

-    if (pPointer->x == x &&

-	pPointer->y == y &&

-	pPointer->pCursor == pCursor &&

-	!pPointer->checkPixels)

-    {

-	return;

-    }

-    pPointer->x = x;

-    pPointer->y = y;

-    pPointer->pCacheWin = NullWindow;

-    if (pPointer->checkPixels || pPointer->pCursor != pCursor)

-    {

-	pPointer->pCursor = pCursor;

-	miSpriteFindColors (pPointer, pScreen);

-    }

-    if (pPointer->isUp) {

-	/* TODO: reimplement flicker-free MoveCursor */

-	SPRITE_DEBUG (("SetCursor remove %d\n", pDev->id));

-	miSpriteRemoveCursor (pDev, pScreen);

-    }

-

-    if (!pPointer->isUp && pPointer->pCursor)

-    {

-	SPRITE_DEBUG (("SetCursor restore %d\n", pDev->id));

-        miSpriteSaveUnderCursor(pDev, pScreen);

-	miSpriteRestoreCursor (pDev, pScreen);

-    }

-

-}

-

-static void

-miSpriteMoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y)

-{

-    CursorPtr pCursor;

-

-    if (IsFloating(pDev))

-        return;

-

-    pCursor = MISPRITE(pDev)->pCursor;

-

-    miSpriteSetCursor (pDev, pScreen, pCursor, x, y);

-}

-

-

-static Bool

-miSpriteDeviceCursorInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)

-{

-    int ret = miDCDeviceInitialize(pDev, pScreen);

-

-    if (ret)

-    {

-        miCursorInfoPtr pCursorInfo;

-        pCursorInfo = dixLookupPrivate(&pDev->devPrivates, miSpriteDevPrivatesKey);

-        pCursorInfo->pCursor = NULL;

-        pCursorInfo->x = 0;

-        pCursorInfo->y = 0;

-        pCursorInfo->isUp = FALSE;

-        pCursorInfo->shouldBeUp = FALSE;

-        pCursorInfo->pCacheWin = NullWindow;

-        pCursorInfo->isInCacheWin = FALSE;

-        pCursorInfo->checkPixels = TRUE;

-        pCursorInfo->pScreen = FALSE;

-    }

-

-    return ret;

-}

-

-static void

-miSpriteDeviceCursorCleanup(DeviceIntPtr pDev, ScreenPtr pScreen)

-{

-    miCursorInfoPtr pCursorInfo = dixLookupPrivate(&pDev->devPrivates, miSpriteDevPrivatesKey);

-

-    if (DevHasCursor(pDev))

-        miDCDeviceCleanup(pDev, pScreen);

-

-    memset(pCursorInfo, 0, sizeof(miCursorInfoRec));

-}

-

-/*

- * undraw/draw cursor

- */

-

-static void

-miSpriteRemoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen)

-{

-    miSpriteScreenPtr   pScreenPriv;

-    miCursorInfoPtr     pCursorInfo;

-

-

-    if (IsFloating(pDev))

-        return;

-

-    DamageDrawInternal (pScreen, TRUE);

-    pScreenPriv = GetSpriteScreen(pScreen);

-    pCursorInfo = MISPRITE(pDev);

-

-    miSpriteIsDown(pCursorInfo);

-    miSpriteRegisterBlockHandler(pScreen, pScreenPriv);

-    pCursorInfo->pCacheWin = NullWindow;

-    miSpriteDisableDamage(pScreen, pScreenPriv);

-    if (!miDCRestoreUnderCursor(pDev,

-                                pScreen,

-                                pCursorInfo->saved.x1,

-                                pCursorInfo->saved.y1,

-                                pCursorInfo->saved.x2 -

-                                pCursorInfo->saved.x1,

-                                pCursorInfo->saved.y2 -

-                                pCursorInfo->saved.y1))

-    {

-        miSpriteIsUp(pCursorInfo);

-    }

-    miSpriteEnableDamage(pScreen, pScreenPriv);

-    DamageDrawInternal (pScreen, FALSE);

-}

-

-/*

- * Called from the block handler, saves area under cursor

- * before waiting for something to do.

- */

-

-static void

-miSpriteSaveUnderCursor(DeviceIntPtr pDev, ScreenPtr pScreen)

-{

-    miSpriteScreenPtr   pScreenPriv;

-    int			x, y;

-    CursorPtr		pCursor;

-    miCursorInfoPtr     pCursorInfo;

-

-    if (IsFloating(pDev))

-        return;

-

-    DamageDrawInternal (pScreen, TRUE);

-    pScreenPriv = GetSpriteScreen(pScreen);

-    pCursorInfo = MISPRITE(pDev);

-

-    miSpriteComputeSaved (pDev, pScreen);

-    pCursor = pCursorInfo->pCursor;

-

-    x = pCursorInfo->x - (int)pCursor->bits->xhot;

-    y = pCursorInfo->y - (int)pCursor->bits->yhot;

-    miSpriteDisableDamage(pScreen, pScreenPriv);

-

-    miDCSaveUnderCursor(pDev,

-                        pScreen,

-                        pCursorInfo->saved.x1,

-                        pCursorInfo->saved.y1,

-                        pCursorInfo->saved.x2 -

-                        pCursorInfo->saved.x1,

-                        pCursorInfo->saved.y2 -

-                        pCursorInfo->saved.y1);

-    SPRITE_DEBUG(("SaveUnderCursor %d\n", pDev->id));

-    miSpriteEnableDamage(pScreen, pScreenPriv);

-    DamageDrawInternal (pScreen, FALSE);

-}

-

-

-/*

- * Called from the block handler, restores the cursor

- * before waiting for something to do.

- */

-

-static void

-miSpriteRestoreCursor (DeviceIntPtr pDev, ScreenPtr pScreen)

-{

-    miSpriteScreenPtr   pScreenPriv;

-    int			x, y;

-    CursorPtr		pCursor;

-    miCursorInfoPtr     pCursorInfo;

-

-    if (IsFloating(pDev))

-        return;

-

-    DamageDrawInternal (pScreen, TRUE);

-    pScreenPriv = GetSpriteScreen(pScreen);

-    pCursorInfo = MISPRITE(pDev);

-

-    miSpriteComputeSaved (pDev, pScreen);

-    pCursor = pCursorInfo->pCursor;

-

-    x = pCursorInfo->x - (int)pCursor->bits->xhot;

-    y = pCursorInfo->y - (int)pCursor->bits->yhot;

-    miSpriteDisableDamage(pScreen, pScreenPriv);

-    SPRITE_DEBUG(("RestoreCursor %d\n", pDev->id));

-    if (pCursorInfo->checkPixels)

-        miSpriteFindColors (pCursorInfo, pScreen);

-    if (miDCPutUpCursor(pDev, pScreen,

-                pCursor, x, y,

-                pScreenPriv->colors[SOURCE_COLOR].pixel,

-                pScreenPriv->colors[MASK_COLOR].pixel))

-    {

-        miSpriteIsUp(pCursorInfo);

-        pCursorInfo->pScreen = pScreen;

-    }

-    miSpriteEnableDamage(pScreen, pScreenPriv);

-    DamageDrawInternal (pScreen, FALSE);

-}

-

-/*

- * compute the desired area of the screen to save

- */

-

-static void

-miSpriteComputeSaved (DeviceIntPtr pDev, ScreenPtr pScreen)

-{

-    int		    x, y, w, h;

-    int		    wpad, hpad;

-    CursorPtr	    pCursor;

-    miCursorInfoPtr pCursorInfo;

-

-    if (IsFloating(pDev))

-        return;

-

-    pCursorInfo = MISPRITE(pDev);

-

-    pCursor = pCursorInfo->pCursor;

-    x = pCursorInfo->x - (int)pCursor->bits->xhot;

-    y = pCursorInfo->y - (int)pCursor->bits->yhot;

-    w = pCursor->bits->width;

-    h = pCursor->bits->height;

-    wpad = SPRITE_PAD;

-    hpad = SPRITE_PAD;

-    pCursorInfo->saved.x1 = x - wpad;

-    pCursorInfo->saved.y1 = y - hpad;

-    pCursorInfo->saved.x2 = pCursorInfo->saved.x1 + w + wpad * 2;

-    pCursorInfo->saved.y2 = pCursorInfo->saved.y1 + h + hpad * 2;

-}

-

+/*
+ * misprite.c
+ *
+ * machine independent software sprite 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   <X11/Xproto.h>
+#include   "misc.h"
+#include   "pixmapstr.h"
+#include   "input.h"
+#include   "mi.h"
+#include   "cursorstr.h"
+#include   <X11/fonts/font.h>
+#include   "scrnintstr.h"
+#include   "colormapst.h"
+#include   "windowstr.h"
+#include   "gcstruct.h"
+#include   "mipointer.h"
+#include   "misprite.h"
+#include   "dixfontstr.h"
+#include   <X11/fonts/fontstruct.h>
+#include   "inputstr.h"
+#include   "damage.h"
+
+typedef struct {
+    CursorPtr	    pCursor;
+    int		    x;			/* cursor hotspot */
+    int		    y;
+    BoxRec	    saved;		/* saved area from the screen */
+    Bool	    isUp;		/* cursor in frame buffer */
+    Bool	    shouldBeUp;		/* cursor should be displayed */
+    WindowPtr	    pCacheWin;		/* window the cursor last seen in */
+    Bool	    isInCacheWin;
+    Bool	    checkPixels;	/* check colormap collision */
+    ScreenPtr       pScreen;
+} miCursorInfoRec, *miCursorInfoPtr;
+
+/*
+ * per screen information
+ */
+
+typedef struct {
+    /* screen procedures */
+    CloseScreenProcPtr			CloseScreen;
+    GetImageProcPtr			GetImage;
+    GetSpansProcPtr			GetSpans;
+    SourceValidateProcPtr		SourceValidate;
+    
+    /* window procedures */
+    CopyWindowProcPtr			CopyWindow;
+    
+    /* colormap procedures */
+    InstallColormapProcPtr		InstallColormap;
+    StoreColorsProcPtr			StoreColors;
+    
+    /* os layer procedures */
+    ScreenBlockHandlerProcPtr		BlockHandler;
+    
+    /* device cursor procedures */
+    DeviceCursorInitializeProcPtr       DeviceCursorInitialize;
+    DeviceCursorCleanupProcPtr          DeviceCursorCleanup;
+
+    xColorItem	    colors[2];
+    ColormapPtr     pInstalledMap;
+    ColormapPtr     pColormap;
+    VisualPtr	    pVisual;
+    DamagePtr	    pDamage;		/* damage tracking structure */
+    Bool            damageRegistered;
+    int             numberOfCursors;
+} miSpriteScreenRec, *miSpriteScreenPtr;
+
+#define SOURCE_COLOR	0
+#define MASK_COLOR	1
+
+/*
+ * Overlap BoxPtr and Box elements
+ */
+#define BOX_OVERLAP(pCbox,X1,Y1,X2,Y2) \
+ 	(((pCbox)->x1 <= (X2)) && ((X1) <= (pCbox)->x2) && \
+	 ((pCbox)->y1 <= (Y2)) && ((Y1) <= (pCbox)->y2))
+
+/*
+ * Overlap BoxPtr, origins, and rectangle
+ */
+#define ORG_OVERLAP(pCbox,xorg,yorg,x,y,w,h) \
+    BOX_OVERLAP((pCbox),(x)+(xorg),(y)+(yorg),(x)+(xorg)+(w),(y)+(yorg)+(h))
+
+/*
+ * Overlap BoxPtr, origins and RectPtr
+ */
+#define ORGRECT_OVERLAP(pCbox,xorg,yorg,pRect) \
+    ORG_OVERLAP((pCbox),(xorg),(yorg),(pRect)->x,(pRect)->y, \
+		(int)((pRect)->width), (int)((pRect)->height))
+/*
+ * Overlap BoxPtr and horizontal span
+ */
+#define SPN_OVERLAP(pCbox,y,x,w) BOX_OVERLAP((pCbox),(x),(y),(x)+(w),(y))
+
+#define LINE_SORT(x1,y1,x2,y2) \
+{ int _t; \
+  if (x1 > x2) { _t = x1; x1 = x2; x2 = _t; } \
+  if (y1 > y2) { _t = y1; y1 = y2; y2 = _t; } }
+
+#define LINE_OVERLAP(pCbox,x1,y1,x2,y2,lw2) \
+    BOX_OVERLAP((pCbox), (x1)-(lw2), (y1)-(lw2), (x2)+(lw2), (y2)+(lw2))
+
+
+#define SPRITE_DEBUG_ENABLE 0
+#if SPRITE_DEBUG_ENABLE
+#define SPRITE_DEBUG(x)	ErrorF x
+#else
+#define SPRITE_DEBUG(x)
+#endif
+
+#define MISPRITE(dev) \
+    (IsFloating(dev) ? \
+       (miCursorInfoPtr)dixLookupPrivate(&dev->devPrivates, miSpriteDevPrivatesKey) : \
+       (miCursorInfoPtr)dixLookupPrivate(&(GetMaster(dev, MASTER_POINTER))->devPrivates, miSpriteDevPrivatesKey))
+
+static void
+miSpriteDisableDamage(ScreenPtr pScreen, miSpriteScreenPtr pScreenPriv)
+{
+    if (pScreenPriv->damageRegistered) {
+	DamageUnregister (&(pScreen->GetScreenPixmap(pScreen)->drawable),
+			  pScreenPriv->pDamage);
+	pScreenPriv->damageRegistered = 0;
+    }
+}
+
+static void
+miSpriteEnableDamage(ScreenPtr pScreen, miSpriteScreenPtr pScreenPriv)
+{
+    if (!pScreenPriv->damageRegistered) {
+	pScreenPriv->damageRegistered = 1;
+	DamageRegister (&(pScreen->GetScreenPixmap(pScreen)->drawable),
+			pScreenPriv->pDamage);
+    }
+}
+
+static void
+miSpriteIsUp(miCursorInfoPtr pDevCursor)
+{
+    pDevCursor->isUp = TRUE;
+}
+
+static void
+miSpriteIsDown(miCursorInfoPtr pDevCursor)
+{
+    pDevCursor->isUp = FALSE;
+}
+
+/*
+ * screen wrappers
+ */
+
+static DevPrivateKeyRec miSpriteScreenKeyRec;
+#define miSpriteScreenKey (&miSpriteScreenKeyRec)
+#define GetSpriteScreen(pScreen) \
+	(dixLookupPrivate(&(pScreen)->devPrivates, miSpriteScreenKey))
+static DevPrivateKeyRec miSpriteDevPrivatesKeyRec;
+#define miSpriteDevPrivatesKey (&miSpriteDevPrivatesKeyRec)
+
+static Bool	    miSpriteCloseScreen(int i, ScreenPtr pScreen);
+static void	    miSpriteGetImage(DrawablePtr pDrawable, int sx, int sy,
+				     int w, int h, unsigned int format,
+				     unsigned long planemask, char *pdstLine);
+static void	    miSpriteGetSpans(DrawablePtr pDrawable, int wMax,
+				     DDXPointPtr ppt, int *pwidth, int nspans,
+				     char *pdstStart);
+static void	    miSpriteSourceValidate(DrawablePtr pDrawable, int x, int y,
+					   int width, int height,
+					   unsigned int subWindowMode);
+static void	    miSpriteCopyWindow (WindowPtr pWindow,
+					DDXPointRec ptOldOrg,
+					RegionPtr prgnSrc);
+static void	    miSpriteBlockHandler(int i, pointer blockData,
+					 pointer pTimeout,
+					 pointer pReadMask);
+static void	    miSpriteInstallColormap(ColormapPtr pMap);
+static void	    miSpriteStoreColors(ColormapPtr pMap, int ndef,
+					xColorItem *pdef);
+
+static void	    miSpriteComputeSaved(DeviceIntPtr pDev,
+                                         ScreenPtr pScreen);
+
+static Bool         miSpriteDeviceCursorInitialize(DeviceIntPtr pDev,
+                                                   ScreenPtr pScreen);
+static void         miSpriteDeviceCursorCleanup(DeviceIntPtr pDev,
+                                                ScreenPtr pScreen);
+
+#define SCREEN_PROLOGUE(pPriv, pScreen, field) ((pScreen)->field = \
+   (pPriv)->field)
+#define SCREEN_EPILOGUE(pPriv, pScreen, field)\
+    ((pPriv)->field = (pScreen)->field, (pScreen)->field = miSprite##field)
+
+/*
+ * pointer-sprite method table
+ */
+
+static Bool miSpriteRealizeCursor(DeviceIntPtr pDev, ScreenPtr pScreen,
+                                  CursorPtr pCursor);
+static Bool miSpriteUnrealizeCursor(DeviceIntPtr pDev, ScreenPtr pScreen,
+                                    CursorPtr pCursor);
+static void miSpriteSetCursor(DeviceIntPtr pDev, ScreenPtr pScreen,
+                              CursorPtr pCursor, int x, int y);
+static void miSpriteMoveCursor(DeviceIntPtr pDev, ScreenPtr pScreen,
+                               int x, int y);
+
+miPointerSpriteFuncRec miSpritePointerFuncs = {
+    miSpriteRealizeCursor,
+    miSpriteUnrealizeCursor,
+    miSpriteSetCursor,
+    miSpriteMoveCursor,
+    miSpriteDeviceCursorInitialize,
+    miSpriteDeviceCursorCleanup,
+};
+
+/*
+ * other misc functions
+ */
+
+static void miSpriteRemoveCursor(DeviceIntPtr pDev,
+                                 ScreenPtr pScreen);
+static void miSpriteSaveUnderCursor(DeviceIntPtr pDev,
+                                 ScreenPtr pScreen);
+static void miSpriteRestoreCursor(DeviceIntPtr pDev,
+                                 ScreenPtr pScreen);
+
+static void
+miSpriteRegisterBlockHandler(ScreenPtr pScreen, miSpriteScreenPtr pScreenPriv)
+{
+    if (!pScreenPriv->BlockHandler) {
+        pScreenPriv->BlockHandler = pScreen->BlockHandler;
+        pScreen->BlockHandler = miSpriteBlockHandler;
+    }
+}
+
+static void
+miSpriteReportDamage (DamagePtr pDamage, RegionPtr pRegion, void *closure)
+{
+    ScreenPtr		    pScreen = closure;
+    miCursorInfoPtr         pCursorInfo;
+    DeviceIntPtr            pDev;
+
+    for (pDev = inputInfo.devices; pDev; pDev = pDev->next)
+    {
+        if (DevHasCursor(pDev))
+        {
+            pCursorInfo = MISPRITE(pDev);
+
+            if (pCursorInfo->isUp &&
+                pCursorInfo->pScreen == pScreen &&
+                RegionContainsRect(pRegion, &pCursorInfo->saved) != rgnOUT)
+            {
+                SPRITE_DEBUG(("Damage remove\n"));
+                miSpriteRemoveCursor (pDev, pScreen);
+            }
+        }
+    }
+}
+
+/*
+ * miSpriteInitialize -- called from device-dependent screen
+ * initialization proc after all of the function pointers have
+ * been stored in the screen structure.
+ */
+
+Bool
+miSpriteInitialize (ScreenPtr               pScreen,
+                    miPointerScreenFuncPtr  screenFuncs)
+{
+    miSpriteScreenPtr	pScreenPriv;
+    VisualPtr		pVisual;
+
+    if (!DamageSetup (pScreen))
+	return FALSE;
+
+    if (!dixRegisterPrivateKey(&miSpriteScreenKeyRec, PRIVATE_SCREEN, 0))
+	return FALSE;
+
+    if (!dixRegisterPrivateKey(&miSpriteDevPrivatesKeyRec, PRIVATE_DEVICE, sizeof(miCursorInfoRec)))
+	return FALSE;
+
+    pScreenPriv = malloc(sizeof (miSpriteScreenRec));
+    if (!pScreenPriv)
+	return FALSE;
+
+    pScreenPriv->pDamage = DamageCreate (miSpriteReportDamage,
+					 NULL,
+					 DamageReportRawRegion,
+					 TRUE,
+					 pScreen,
+					 pScreen);
+
+    if (!miPointerInitialize (pScreen, &miSpritePointerFuncs, screenFuncs,TRUE))
+    {
+	free(pScreenPriv);
+	return FALSE;
+    }
+    for (pVisual = pScreen->visuals;
+	 pVisual->vid != pScreen->rootVisual;
+	 pVisual++)
+	;
+    pScreenPriv->pVisual = pVisual;
+    pScreenPriv->CloseScreen = pScreen->CloseScreen;
+    pScreenPriv->GetImage = pScreen->GetImage;
+    pScreenPriv->GetSpans = pScreen->GetSpans;
+    pScreenPriv->SourceValidate = pScreen->SourceValidate;
+
+    pScreenPriv->CopyWindow = pScreen->CopyWindow;
+
+    pScreenPriv->InstallColormap = pScreen->InstallColormap;
+    pScreenPriv->StoreColors = pScreen->StoreColors;
+
+    pScreenPriv->BlockHandler = NULL;
+
+    pScreenPriv->DeviceCursorInitialize = pScreen->DeviceCursorInitialize;
+    pScreenPriv->DeviceCursorCleanup = pScreen->DeviceCursorCleanup;
+
+    pScreenPriv->pInstalledMap = NULL;
+    pScreenPriv->pColormap = NULL;
+    pScreenPriv->colors[SOURCE_COLOR].red = 0;
+    pScreenPriv->colors[SOURCE_COLOR].green = 0;
+    pScreenPriv->colors[SOURCE_COLOR].blue = 0;
+    pScreenPriv->colors[MASK_COLOR].red = 0;
+    pScreenPriv->colors[MASK_COLOR].green = 0;
+    pScreenPriv->colors[MASK_COLOR].blue = 0;
+    pScreenPriv->damageRegistered = 0;
+    pScreenPriv->numberOfCursors = 0;
+
+    dixSetPrivate(&pScreen->devPrivates, miSpriteScreenKey, pScreenPriv);
+
+    pScreen->CloseScreen = miSpriteCloseScreen;
+    pScreen->GetImage = miSpriteGetImage;
+    pScreen->GetSpans = miSpriteGetSpans;
+    pScreen->SourceValidate = miSpriteSourceValidate;
+
+    pScreen->CopyWindow = miSpriteCopyWindow;
+    pScreen->InstallColormap = miSpriteInstallColormap;
+    pScreen->StoreColors = miSpriteStoreColors;
+
+    return TRUE;
+}
+
+/*
+ * Screen wrappers
+ */
+
+/*
+ * CloseScreen wrapper -- unwrap everything, free the private data
+ * and call the wrapped function
+ */
+
+static Bool
+miSpriteCloseScreen (int i, ScreenPtr pScreen)
+{
+    miSpriteScreenPtr   pScreenPriv = GetSpriteScreen(pScreen);
+
+    pScreen->CloseScreen = pScreenPriv->CloseScreen;
+    pScreen->GetImage = pScreenPriv->GetImage;
+    pScreen->GetSpans = pScreenPriv->GetSpans;
+    pScreen->SourceValidate = pScreenPriv->SourceValidate;
+    pScreen->InstallColormap = pScreenPriv->InstallColormap;
+    pScreen->StoreColors = pScreenPriv->StoreColors;
+
+    DamageDestroy (pScreenPriv->pDamage);
+
+    free(pScreenPriv);
+
+    return (*pScreen->CloseScreen) (i, pScreen);
+}
+
+static void
+miSpriteGetImage (DrawablePtr pDrawable, int sx, int sy, int w, int h,
+                  unsigned int format, unsigned long planemask,
+                  char *pdstLine)
+{
+    ScreenPtr           pScreen = pDrawable->pScreen;
+    DeviceIntPtr        pDev;
+    miCursorInfoPtr     pCursorInfo;
+    miSpriteScreenPtr   pPriv = GetSpriteScreen(pScreen);
+
+    SCREEN_PROLOGUE (pPriv, pScreen, GetImage);
+
+    if (pDrawable->type == DRAWABLE_WINDOW)
+    {
+        for(pDev = inputInfo.devices; pDev; pDev = pDev->next)
+        {
+            if (DevHasCursor(pDev))
+            {
+                 pCursorInfo = MISPRITE(pDev);
+                 if (pCursorInfo->isUp && pCursorInfo->pScreen == pScreen &&
+                      ORG_OVERLAP(&pCursorInfo->saved,pDrawable->x,pDrawable->y,
+                                  sx, sy, w, h))
+                 {
+                     SPRITE_DEBUG (("GetImage remove\n"));
+                     miSpriteRemoveCursor (pDev, pScreen);
+                 }
+            }
+        }
+    }
+
+    (*pScreen->GetImage) (pDrawable, sx, sy, w, h,
+			  format, planemask, pdstLine);
+
+    SCREEN_EPILOGUE (pPriv, pScreen, GetImage);
+}
+
+static void
+miSpriteGetSpans (DrawablePtr pDrawable, int wMax, DDXPointPtr ppt,
+                  int *pwidth, int nspans, char *pdstStart)
+{
+    ScreenPtr		    pScreen = pDrawable->pScreen;
+    DeviceIntPtr            pDev;
+    miCursorInfoPtr         pCursorInfo;
+    miSpriteScreenPtr       pPriv = GetSpriteScreen(pScreen);
+
+    SCREEN_PROLOGUE (pPriv, pScreen, GetSpans);
+
+    if (pDrawable->type == DRAWABLE_WINDOW)
+    {
+        for(pDev = inputInfo.devices; pDev; pDev = pDev->next)
+        {
+            if (DevHasCursor(pDev))
+            {
+                pCursorInfo = MISPRITE(pDev);
+
+                if (pCursorInfo->isUp && pCursorInfo->pScreen == pScreen)
+                {
+                    DDXPointPtr    pts;
+                    int    	       *widths;
+                    int    	       nPts;
+                    int    	       xorg,
+                                   yorg;
+
+                    xorg = pDrawable->x;
+                    yorg = pDrawable->y;
+
+                    for (pts = ppt, widths = pwidth, nPts = nspans;
+                            nPts--;
+                            pts++, widths++)
+                    {
+                        if (SPN_OVERLAP(&pCursorInfo->saved,pts->y+yorg,
+                                    pts->x+xorg,*widths))
+                        {
+                            SPRITE_DEBUG (("GetSpans remove\n"));
+                            miSpriteRemoveCursor (pDev, pScreen);
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    (*pScreen->GetSpans) (pDrawable, wMax, ppt, pwidth, nspans, pdstStart);
+
+    SCREEN_EPILOGUE (pPriv, pScreen, GetSpans);
+}
+
+static void
+miSpriteSourceValidate (DrawablePtr pDrawable, int x, int y, int width,
+                        int height, unsigned int subWindowMode)
+{
+    ScreenPtr		    pScreen = pDrawable->pScreen;
+    DeviceIntPtr            pDev;
+    miCursorInfoPtr         pCursorInfo;
+    miSpriteScreenPtr       pPriv = GetSpriteScreen(pScreen);
+
+    SCREEN_PROLOGUE (pPriv, pScreen, SourceValidate);
+
+    if (pDrawable->type == DRAWABLE_WINDOW)
+    {
+	for(pDev = inputInfo.devices; pDev; pDev = pDev->next)
+	{
+	    if (DevHasCursor(pDev))
+	    {
+		pCursorInfo = MISPRITE(pDev);
+		if (pCursorInfo && pCursorInfo->isUp && pCursorInfo->pScreen == pScreen &&
+		    ORG_OVERLAP(&pCursorInfo->saved, pDrawable->x, pDrawable->y,
+				x, y, width, height))
+		{
+		    SPRITE_DEBUG (("SourceValidate remove\n"));
+		    miSpriteRemoveCursor (pDev, pScreen);
+		}
+	    }
+	}
+    }
+
+    if (pScreen->SourceValidate)
+	(*pScreen->SourceValidate) (pDrawable, x, y, width, height, subWindowMode);
+
+    SCREEN_EPILOGUE (pPriv, pScreen, SourceValidate);
+}
+
+static void
+miSpriteCopyWindow (WindowPtr pWindow, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
+{
+    ScreenPtr	pScreen = pWindow->drawable.pScreen;
+    DeviceIntPtr            pDev;
+    miCursorInfoPtr         pCursorInfo;
+    miSpriteScreenPtr       pPriv = GetSpriteScreen(pScreen);
+
+    SCREEN_PROLOGUE (pPriv, pScreen, CopyWindow);
+
+    for(pDev = inputInfo.devices; pDev; pDev = pDev->next)
+    {
+        if (DevHasCursor(pDev))
+        {
+            pCursorInfo = MISPRITE(pDev);
+            /*
+             * Damage will take care of destination check
+             */
+            if (pCursorInfo && pCursorInfo->isUp && pCursorInfo->pScreen == pScreen &&
+                    RegionContainsRect(prgnSrc, &pCursorInfo->saved) != rgnOUT)
+            {
+                SPRITE_DEBUG (("CopyWindow remove\n"));
+                miSpriteRemoveCursor (pDev, pScreen);
+            }
+        }
+    }
+
+    (*pScreen->CopyWindow) (pWindow, ptOldOrg, prgnSrc);
+    SCREEN_EPILOGUE (pPriv, pScreen, CopyWindow);
+}
+
+static void
+miSpriteBlockHandler (int i, pointer blockData, pointer pTimeout,
+                      pointer pReadmask)
+{
+    ScreenPtr		pScreen = screenInfo.screens[i];
+    miSpriteScreenPtr	pPriv = GetSpriteScreen(pScreen);
+    DeviceIntPtr            pDev;
+    miCursorInfoPtr         pCursorInfo;
+    Bool                WorkToDo = FALSE;
+
+    for(pDev = inputInfo.devices; pDev; pDev = pDev->next)
+    {
+        if (DevHasCursor(pDev))
+        {
+            pCursorInfo = MISPRITE(pDev);
+            if (pCursorInfo && !pCursorInfo->isUp
+                    && pCursorInfo->pScreen == pScreen
+                    && pCursorInfo->shouldBeUp)
+            {
+                SPRITE_DEBUG (("BlockHandler save"));
+                miSpriteSaveUnderCursor (pDev, pScreen);
+            }
+        }
+    }
+    for(pDev = inputInfo.devices; pDev; pDev = pDev->next)
+    {
+        if (DevHasCursor(pDev))
+        {
+            pCursorInfo = MISPRITE(pDev);
+            if (pCursorInfo && !pCursorInfo->isUp &&
+                    pCursorInfo->pScreen == pScreen &&
+                    pCursorInfo->shouldBeUp)
+            {
+                SPRITE_DEBUG (("BlockHandler restore\n"));
+                miSpriteRestoreCursor (pDev, pScreen);
+                if (!pCursorInfo->isUp)
+                    WorkToDo = TRUE;
+            }
+        }
+    }
+
+    SCREEN_PROLOGUE(pPriv, pScreen, BlockHandler);
+
+    (*pScreen->BlockHandler) (i, blockData, pTimeout, pReadmask);
+
+    if (WorkToDo)
+        SCREEN_EPILOGUE(pPriv, pScreen, BlockHandler);
+    else
+        pPriv->BlockHandler = NULL;
+}
+
+static void
+miSpriteInstallColormap (ColormapPtr pMap)
+{
+    ScreenPtr		pScreen = pMap->pScreen;
+    miSpriteScreenPtr	pPriv = GetSpriteScreen(pScreen);
+
+    SCREEN_PROLOGUE(pPriv, pScreen, InstallColormap);
+
+    (*pScreen->InstallColormap) (pMap);
+
+    SCREEN_EPILOGUE(pPriv, pScreen, InstallColormap);
+
+    /* InstallColormap can be called before devices are initialized. */
+    pPriv->pInstalledMap = pMap;
+    if (pPriv->pColormap != pMap)
+    {
+        DeviceIntPtr pDev;
+        miCursorInfoPtr     pCursorInfo;
+        for (pDev = inputInfo.devices; pDev; pDev = pDev->next)
+        {
+            if (DevHasCursor(pDev))
+            {
+                pCursorInfo = MISPRITE(pDev);
+                if (pCursorInfo)
+                {
+                  pCursorInfo->checkPixels = TRUE;
+                  if (pCursorInfo->isUp && pCursorInfo->pScreen == pScreen)
+                      miSpriteRemoveCursor(pDev, pScreen);
+                }
+            }
+        }
+
+    }
+}
+
+static void
+miSpriteStoreColors (ColormapPtr pMap, int ndef, xColorItem *pdef)
+{
+    ScreenPtr		pScreen = pMap->pScreen;
+    miSpriteScreenPtr	pPriv = GetSpriteScreen(pScreen);
+    int			i;
+    int			updated;
+    VisualPtr		pVisual;
+    DeviceIntPtr        pDev;
+    miCursorInfoPtr     pCursorInfo;
+
+    SCREEN_PROLOGUE(pPriv, pScreen, StoreColors);
+
+    (*pScreen->StoreColors) (pMap, ndef, pdef);
+
+    SCREEN_EPILOGUE(pPriv, pScreen, StoreColors);
+
+    if (pPriv->pColormap == pMap)
+    {
+        updated = 0;
+        pVisual = pMap->pVisual;
+        if (pVisual->class == DirectColor)
+        {
+            /* Direct color - match on any of the subfields */
+
+#define MaskMatch(a,b,mask) (((a) & (pVisual->mask)) == ((b) & (pVisual->mask)))
+
+#define UpdateDAC(dev, plane,dac,mask) {\
+    if (MaskMatch (dev->colors[plane].pixel,pdef[i].pixel,mask)) {\
+	dev->colors[plane].dac = pdef[i].dac; \
+	updated = 1; \
+    } \
+}
+
+#define CheckDirect(dev, plane) \
+	    UpdateDAC(dev, plane,red,redMask) \
+	    UpdateDAC(dev, plane,green,greenMask) \
+	    UpdateDAC(dev, plane,blue,blueMask)
+
+            for (i = 0; i < ndef; i++)
+            {
+                CheckDirect (pPriv, SOURCE_COLOR)
+                CheckDirect (pPriv, MASK_COLOR)
+            }
+        }
+        else
+        {
+            /* PseudoColor/GrayScale - match on exact pixel */
+            for (i = 0; i < ndef; i++)
+            {
+                if (pdef[i].pixel ==
+                        pPriv->colors[SOURCE_COLOR].pixel)
+                {
+                    pPriv->colors[SOURCE_COLOR] = pdef[i];
+                    if (++updated == 2)
+                        break;
+                }
+                if (pdef[i].pixel ==
+                        pPriv->colors[MASK_COLOR].pixel)
+                {
+                    pPriv->colors[MASK_COLOR] = pdef[i];
+                    if (++updated == 2)
+                        break;
+                }
+            }
+        }
+        if (updated)
+        {
+            for(pDev = inputInfo.devices; pDev; pDev = pDev->next)
+            {
+                if (DevHasCursor(pDev))
+                {
+                    pCursorInfo = MISPRITE(pDev);
+                    pCursorInfo->checkPixels = TRUE;
+                    if (pCursorInfo->isUp && pCursorInfo->pScreen == pScreen)
+                        miSpriteRemoveCursor (pDev, pScreen);
+                }
+            }
+        }
+    }
+}
+
+static void
+miSpriteFindColors (miCursorInfoPtr pDevCursor, ScreenPtr pScreen)
+{
+    miSpriteScreenPtr	pScreenPriv = GetSpriteScreen(pScreen);
+    CursorPtr		pCursor;
+    xColorItem		*sourceColor, *maskColor;
+
+    pCursor = pDevCursor->pCursor;
+    sourceColor = &pScreenPriv->colors[SOURCE_COLOR];
+    maskColor = &pScreenPriv->colors[MASK_COLOR];
+    if (pScreenPriv->pColormap != pScreenPriv->pInstalledMap ||
+	!(pCursor->foreRed == sourceColor->red &&
+	  pCursor->foreGreen == sourceColor->green &&
+          pCursor->foreBlue == sourceColor->blue &&
+	  pCursor->backRed == maskColor->red &&
+	  pCursor->backGreen == maskColor->green &&
+	  pCursor->backBlue == maskColor->blue))
+    {
+	pScreenPriv->pColormap = pScreenPriv->pInstalledMap;
+	sourceColor->red = pCursor->foreRed;
+	sourceColor->green = pCursor->foreGreen;
+	sourceColor->blue = pCursor->foreBlue;
+	FakeAllocColor (pScreenPriv->pColormap, sourceColor);
+	maskColor->red = pCursor->backRed;
+	maskColor->green = pCursor->backGreen;
+	maskColor->blue = pCursor->backBlue;
+	FakeAllocColor (pScreenPriv->pColormap, maskColor);
+	/* "free" the pixels right away, don't let this confuse you */
+	FakeFreeColor(pScreenPriv->pColormap, sourceColor->pixel);
+	FakeFreeColor(pScreenPriv->pColormap, maskColor->pixel);
+    }
+
+    pDevCursor->checkPixels = FALSE;
+
+}
+
+/*
+ * miPointer interface routines
+ */
+
+#define SPRITE_PAD  8
+
+static Bool
+miSpriteRealizeCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor)
+{
+    miCursorInfoPtr pCursorInfo;
+
+    if (IsFloating(pDev))
+        return FALSE;
+
+    pCursorInfo = MISPRITE(pDev);
+
+    if (pCursor == pCursorInfo->pCursor)
+	pCursorInfo->checkPixels = TRUE;
+
+    return miDCRealizeCursor(pScreen, pCursor);
+}
+
+static Bool
+miSpriteUnrealizeCursor(DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor)
+{
+    return miDCUnrealizeCursor(pScreen, pCursor);
+}
+
+static void
+miSpriteSetCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
+                   CursorPtr pCursor, int x, int y)
+{
+    miCursorInfoPtr     pPointer;
+    miSpriteScreenPtr   pScreenPriv;
+
+    if (IsFloating(pDev))
+        return;
+
+    pPointer = MISPRITE(pDev);
+    pScreenPriv = GetSpriteScreen(pScreen);
+
+    if (!pCursor)
+    {
+	if (pPointer->shouldBeUp)
+	    --pScreenPriv->numberOfCursors;
+    	pPointer->shouldBeUp = FALSE;
+    	if (pPointer->isUp)
+	    miSpriteRemoveCursor (pDev, pScreen);
+	if (pScreenPriv->numberOfCursors == 0)
+	    miSpriteDisableDamage(pScreen, pScreenPriv);
+	pPointer->pCursor = 0;
+	return;
+    }
+    if (!pPointer->shouldBeUp)
+	pScreenPriv->numberOfCursors++;
+    pPointer->shouldBeUp = TRUE;
+    if (!pPointer->isUp)
+	miSpriteRegisterBlockHandler(pScreen, pScreenPriv);
+    if (pPointer->x == x &&
+	pPointer->y == y &&
+	pPointer->pCursor == pCursor &&
+	!pPointer->checkPixels)
+    {
+	return;
+    }
+    pPointer->x = x;
+    pPointer->y = y;
+    pPointer->pCacheWin = NullWindow;
+    if (pPointer->checkPixels || pPointer->pCursor != pCursor)
+    {
+	pPointer->pCursor = pCursor;
+	miSpriteFindColors (pPointer, pScreen);
+    }
+    if (pPointer->isUp) {
+	/* TODO: reimplement flicker-free MoveCursor */
+	SPRITE_DEBUG (("SetCursor remove %d\n", pDev->id));
+	miSpriteRemoveCursor (pDev, pScreen);
+    }
+
+    if (!pPointer->isUp && pPointer->pCursor)
+    {
+	SPRITE_DEBUG (("SetCursor restore %d\n", pDev->id));
+        miSpriteSaveUnderCursor(pDev, pScreen);
+	miSpriteRestoreCursor (pDev, pScreen);
+    }
+
+}
+
+static void
+miSpriteMoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y)
+{
+    CursorPtr pCursor;
+
+    if (IsFloating(pDev))
+        return;
+
+    pCursor = MISPRITE(pDev)->pCursor;
+
+    miSpriteSetCursor (pDev, pScreen, pCursor, x, y);
+}
+
+
+static Bool
+miSpriteDeviceCursorInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)
+{
+    int ret = miDCDeviceInitialize(pDev, pScreen);
+
+    if (ret)
+    {
+        miCursorInfoPtr pCursorInfo;
+        pCursorInfo = dixLookupPrivate(&pDev->devPrivates, miSpriteDevPrivatesKey);
+        pCursorInfo->pCursor = NULL;
+        pCursorInfo->x = 0;
+        pCursorInfo->y = 0;
+        pCursorInfo->isUp = FALSE;
+        pCursorInfo->shouldBeUp = FALSE;
+        pCursorInfo->pCacheWin = NullWindow;
+        pCursorInfo->isInCacheWin = FALSE;
+        pCursorInfo->checkPixels = TRUE;
+        pCursorInfo->pScreen = FALSE;
+    }
+
+    return ret;
+}
+
+static void
+miSpriteDeviceCursorCleanup(DeviceIntPtr pDev, ScreenPtr pScreen)
+{
+    miCursorInfoPtr pCursorInfo = dixLookupPrivate(&pDev->devPrivates, miSpriteDevPrivatesKey);
+
+    if (DevHasCursor(pDev))
+        miDCDeviceCleanup(pDev, pScreen);
+
+    memset(pCursorInfo, 0, sizeof(miCursorInfoRec));
+}
+
+/*
+ * undraw/draw cursor
+ */
+
+static void
+miSpriteRemoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen)
+{
+    miSpriteScreenPtr   pScreenPriv;
+    miCursorInfoPtr     pCursorInfo;
+
+
+    if (IsFloating(pDev))
+        return;
+
+    DamageDrawInternal (pScreen, TRUE);
+    pScreenPriv = GetSpriteScreen(pScreen);
+    pCursorInfo = MISPRITE(pDev);
+
+    miSpriteIsDown(pCursorInfo);
+    miSpriteRegisterBlockHandler(pScreen, pScreenPriv);
+    pCursorInfo->pCacheWin = NullWindow;
+    miSpriteDisableDamage(pScreen, pScreenPriv);
+    if (!miDCRestoreUnderCursor(pDev,
+                                pScreen,
+                                pCursorInfo->saved.x1,
+                                pCursorInfo->saved.y1,
+                                pCursorInfo->saved.x2 -
+                                pCursorInfo->saved.x1,
+                                pCursorInfo->saved.y2 -
+                                pCursorInfo->saved.y1))
+    {
+        miSpriteIsUp(pCursorInfo);
+    }
+    miSpriteEnableDamage(pScreen, pScreenPriv);
+    DamageDrawInternal (pScreen, FALSE);
+}
+
+/*
+ * Called from the block handler, saves area under cursor
+ * before waiting for something to do.
+ */
+
+static void
+miSpriteSaveUnderCursor(DeviceIntPtr pDev, ScreenPtr pScreen)
+{
+    miSpriteScreenPtr   pScreenPriv;
+    miCursorInfoPtr     pCursorInfo;
+
+    if (IsFloating(pDev))
+        return;
+
+    DamageDrawInternal (pScreen, TRUE);
+    pScreenPriv = GetSpriteScreen(pScreen);
+    pCursorInfo = MISPRITE(pDev);
+
+    miSpriteComputeSaved (pDev, pScreen);
+
+    miSpriteDisableDamage(pScreen, pScreenPriv);
+
+    miDCSaveUnderCursor(pDev,
+                        pScreen,
+                        pCursorInfo->saved.x1,
+                        pCursorInfo->saved.y1,
+                        pCursorInfo->saved.x2 -
+                        pCursorInfo->saved.x1,
+                        pCursorInfo->saved.y2 -
+                        pCursorInfo->saved.y1);
+    SPRITE_DEBUG(("SaveUnderCursor %d\n", pDev->id));
+    miSpriteEnableDamage(pScreen, pScreenPriv);
+    DamageDrawInternal (pScreen, FALSE);
+}
+
+
+/*
+ * Called from the block handler, restores the cursor
+ * before waiting for something to do.
+ */
+
+static void
+miSpriteRestoreCursor (DeviceIntPtr pDev, ScreenPtr pScreen)
+{
+    miSpriteScreenPtr   pScreenPriv;
+    int			x, y;
+    CursorPtr		pCursor;
+    miCursorInfoPtr     pCursorInfo;
+
+    if (IsFloating(pDev))
+        return;
+
+    DamageDrawInternal (pScreen, TRUE);
+    pScreenPriv = GetSpriteScreen(pScreen);
+    pCursorInfo = MISPRITE(pDev);
+
+    miSpriteComputeSaved (pDev, pScreen);
+    pCursor = pCursorInfo->pCursor;
+
+    x = pCursorInfo->x - (int)pCursor->bits->xhot;
+    y = pCursorInfo->y - (int)pCursor->bits->yhot;
+    miSpriteDisableDamage(pScreen, pScreenPriv);
+    SPRITE_DEBUG(("RestoreCursor %d\n", pDev->id));
+    if (pCursorInfo->checkPixels)
+        miSpriteFindColors (pCursorInfo, pScreen);
+    if (miDCPutUpCursor(pDev, pScreen,
+                pCursor, x, y,
+                pScreenPriv->colors[SOURCE_COLOR].pixel,
+                pScreenPriv->colors[MASK_COLOR].pixel))
+    {
+        miSpriteIsUp(pCursorInfo);
+        pCursorInfo->pScreen = pScreen;
+    }
+    miSpriteEnableDamage(pScreen, pScreenPriv);
+    DamageDrawInternal (pScreen, FALSE);
+}
+
+/*
+ * compute the desired area of the screen to save
+ */
+
+static void
+miSpriteComputeSaved (DeviceIntPtr pDev, ScreenPtr pScreen)
+{
+    int		    x, y, w, h;
+    int		    wpad, hpad;
+    CursorPtr	    pCursor;
+    miCursorInfoPtr pCursorInfo;
+
+    if (IsFloating(pDev))
+        return;
+
+    pCursorInfo = MISPRITE(pDev);
+
+    pCursor = pCursorInfo->pCursor;
+    x = pCursorInfo->x - (int)pCursor->bits->xhot;
+    y = pCursorInfo->y - (int)pCursor->bits->yhot;
+    w = pCursor->bits->width;
+    h = pCursor->bits->height;
+    wpad = SPRITE_PAD;
+    hpad = SPRITE_PAD;
+    pCursorInfo->saved.x1 = x - wpad;
+    pCursorInfo->saved.y1 = y - hpad;
+    pCursorInfo->saved.x2 = pCursorInfo->saved.x1 + w + wpad * 2;
+    pCursorInfo->saved.y2 = pCursorInfo->saved.y1 + h + hpad * 2;
+}
+