svn merge -r588:HEAD ^/branches/released .

29 files changed, 16717 insertions, 16791 deletions

diff --git a/xorg-server/mi/miarc.c b/xorg-server/mi/miarc.c
index bdc08459e..d9a28d058 100644
--- a/xorg-server/mi/miarc.c
+++ b/xorg-server/mi/miarc.c
@@ -217,16 +217,6 @@ typedef struct _miPolyArc {
 	miArcJoinPtr	joins;

 } miPolyArcRec, *miPolyArcPtr;

 

-#define GCValsFunction		0

-#define GCValsForeground 	1

-#define GCValsBackground 	2

-#define GCValsLineWidth 	3

-#define GCValsCapStyle 		4

-#define GCValsJoinStyle		5

-#define GCValsMask		(GCFunction | GCForeground | GCBackground | \

-				 GCLineWidth | GCCapStyle | GCJoinStyle)

-static CARD32 gcvals[6];

-

 static void fillSpans(DrawablePtr pDrawable, GCPtr pGC);

 static void newFinalSpan(int y, int xmin, int xmax);

 static void drawArc(xArc *tarc, int l, int a0, int a1, miArcFacePtr right,

@@ -804,7 +794,7 @@ miComputeWideEllipse(int lw, xArc *parc)
     if (!lw)

 	lw = 1;

     k = (parc->height >> 1) + ((lw - 1) >> 1);

-    spdata = xalloc(sizeof(miArcSpanData) + sizeof(miArcSpan) * (k + 2));

+    spdata = malloc(sizeof(miArcSpanData) + sizeof(miArcSpan) * (k + 2));

     if (!spdata)

 	return NULL;

     spdata->spans = (miArcSpan *)(spdata + 1);

@@ -835,14 +825,14 @@ miFillWideEllipse(
 

     yorgu = parc->height + pGC->lineWidth;

     n = (sizeof(int) * 2) * yorgu;

-    widths = xalloc(n + (sizeof(DDXPointRec) * 2) * yorgu);

+    widths = malloc(n + (sizeof(DDXPointRec) * 2) * yorgu);

     if (!widths)

 	return;

     points = (DDXPointPtr)((char *)widths + n);

     spdata = miComputeWideEllipse((int)pGC->lineWidth, parc);

     if (!spdata)

     {

-	xfree(widths);

+	free(widths);

 	return;

     }

     pts = points;

@@ -931,10 +921,10 @@ miFillWideEllipse(
 	    wids += 2;

 	}

     }

-    xfree(spdata);

+    free(spdata);

     (*pGC->ops->FillSpans)(pDraw, pGC, pts - points, points, widths, FALSE);

 

-    xfree(widths);

+    free(widths);

 }

 

 /*

@@ -1049,13 +1039,18 @@ miPolyArc(DrawablePtr pDraw, GCPtr pGC, int narcs, xArc *parcs)
 	    pGCTo = GetScratchGC(1, pDraw->pScreen);

 	    if (!pGCTo)

 		return;

-	    gcvals[GCValsFunction] = GXcopy;

-	    gcvals[GCValsForeground] = 1;

-	    gcvals[GCValsBackground] = 0;

-	    gcvals[GCValsLineWidth] = pGC->lineWidth;

-	    gcvals[GCValsCapStyle] = pGC->capStyle;

-	    gcvals[GCValsJoinStyle] = pGC->joinStyle;

-	    dixChangeGC(NullClient, pGCTo, GCValsMask, gcvals, NULL);

+	    {

+		ChangeGCVal gcvals[6];

+		gcvals[0].val = GXcopy;

+		gcvals[1].val = 1;

+		gcvals[2].val = 0;

+		gcvals[3].val = pGC->lineWidth;

+		gcvals[4].val = pGC->capStyle;

+		gcvals[5].val = pGC->joinStyle;

+		ChangeGC(NullClient, pGCTo, GCFunction |

+			GCForeground | GCBackground | GCLineWidth |

+			GCCapStyle | GCJoinStyle, gcvals);

+	    }

     

 	    /* allocate a 1 bit deep pixmap of the appropriate size, and

 	     * validate it */

@@ -1094,11 +1089,14 @@ miPolyArc(DrawablePtr pDraw, GCPtr pGC, int narcs, xArc *parcs)
  	     iphase >= 0;

 	     iphase--)

 	{

+	    ChangeGCVal gcval;

 	    if (iphase == 1) {

-		dixChangeGC (NullClient, pGC, GCForeground, &bg, NULL);

+		gcval.val = bg;

+		ChangeGC (NullClient, pGC, GCForeground, &gcval);

 		ValidateGC (pDraw, pGC);

 	    } else if (pGC->lineStyle == LineDoubleDash) {

-		dixChangeGC (NullClient, pGC, GCForeground, &fg, NULL);

+		gcval.val = fg;

+		ChangeGC (NullClient, pGC, GCForeground, &gcval);

 		ValidateGC (pDraw, pGC);

 	    }

 	    for (i = 0; i < polyArcs[iphase].narcs; i++) {

@@ -1270,7 +1268,7 @@ miArcJoin(DrawablePtr pDraw, GCPtr pGC, miArcFacePtr pLeft,
 		arc.height = width;

 		arc.angle1 = -miDatan2 (corner.y - center.y, corner.x - center.x);

 		arc.angle2 = a;

-		pArcPts = xalloc (3 * sizeof (SppPointRec));

+		pArcPts = malloc(3 * sizeof (SppPointRec));

 		if (!pArcPts)

 		    return;

 		pArcPts[0].x = otherCorner.x;

@@ -1286,7 +1284,7 @@ miArcJoin(DrawablePtr pDraw, GCPtr pGC, miArcFacePtr pLeft,
 			 * rest of the line */

 			miFillSppPoly(pDraw, pGC, cpt, pArcPts, xOrg, yOrg, xFtrans, yFtrans);

 		}

-		xfree(pArcPts);

+		free(pArcPts);

 		return;

 	case JoinMiter:

 		/*

@@ -1417,7 +1415,7 @@ miRoundCap(
 	 * rest of the line */

 	miFillSppPoly(pDraw, pGC, cpt, pArcPts, -xOrg, -yOrg, xFtrans, yFtrans);

     }

-    xfree(pArcPts);

+    free(pArcPts);

 }

 

 /*

@@ -1515,10 +1513,10 @@ miDatan2 (double dy, double dx)
  * This procedure allocates the space necessary to fit the arc points.

  * Sometimes it's convenient for those points to be at the end of an existing

  * array. (For example, if we want to leave a spare point to make sectors

- * instead of segments.)  So we pass in the xalloc()ed chunk that contains the

+ * instead of segments.)  So we pass in the malloc()ed chunk that contains the

  * array and an index saying where we should start stashing the points.

  * If there isn't an array already, we just pass in a null pointer and 

- * count on xrealloc() to handle the null pointer correctly.

+ * count on realloc() to handle the null pointer correctly.

  */

 static int

 miGetArcPts(

@@ -1565,7 +1563,7 @@ miGetArcPts(
     count++;

 

     cdt = 2 * miDcos(dt);

-    if (!(poly = (SppPointPtr) xrealloc((pointer)*ppPts,

+    if (!(poly = (SppPointPtr) realloc((pointer)*ppPts,

 					(cpt + count) * sizeof(SppPointRec))))

 	return(0);

     *ppPts = poly;

@@ -1628,7 +1626,7 @@ addCap (
 	if (*ncapsp == *sizep)

 	{

 	    newsize = *sizep + ADD_REALLOC_STEP;

-	    cap = (miArcCapPtr) xrealloc (*capsp,

+	    cap = (miArcCapPtr) realloc(*capsp,

 					  newsize * sizeof (**capsp));

 	    if (!cap)

 		return;

@@ -1659,7 +1657,7 @@ addJoin (
 	if (*njoinsp == *sizep)

 	{

 	    newsize = *sizep + ADD_REALLOC_STEP;

-	    join = (miArcJoinPtr) xrealloc (*joinsp,

+	    join = (miArcJoinPtr) realloc(*joinsp,

 					    newsize * sizeof (**joinsp));

 	    if (!join)

 		return;

@@ -1689,7 +1687,7 @@ addArc (
 	if (*narcsp == *sizep)

 	{

 	    newsize = *sizep + ADD_REALLOC_STEP;

-	    arc = (miArcDataPtr) xrealloc (*arcsp,

+	    arc = (miArcDataPtr) realloc(*arcsp,

 					   newsize * sizeof (**arcsp));

 	    if (!arc)

 		return NULL;

@@ -1714,13 +1712,13 @@ miFreeArcs(
 	     iphase--)

 	{

 	    if (arcs[iphase].narcs > 0)

-		xfree(arcs[iphase].arcs);

+		free(arcs[iphase].arcs);

 	    if (arcs[iphase].njoins > 0)

-		xfree(arcs[iphase].joins);

+		free(arcs[iphase].joins);

 	    if (arcs[iphase].ncaps > 0)

-		xfree(arcs[iphase].caps);

+		free(arcs[iphase].caps);

 	}

-	xfree(arcs);

+	free(arcs);

 }

 

 /*

@@ -1804,13 +1802,13 @@ miComputeArcs (
 	isDoubleDash = (pGC->lineStyle == LineDoubleDash);

 	dashOffset = pGC->dashOffset;

 

-	data = xalloc (narcs * sizeof (struct arcData));

+	data = malloc(narcs * sizeof (struct arcData));

 	if (!data)

 	    return NULL;

-	arcs = xalloc (sizeof (*arcs) * (isDoubleDash ? 2 : 1));

+	arcs = malloc(sizeof (*arcs) * (isDoubleDash ? 2 : 1));

 	if (!arcs)

 	{

-	    xfree(data);

+	    free(data);

 	    return NULL;

 	}

 	for (i = 0; i < narcs; i++) {

@@ -2159,11 +2157,11 @@ miComputeArcs (
 			arcs[iphase].arcs[arcs[iphase].narcs-1].cap =

 			         arcs[iphase].ncaps;

 		}

-	xfree(data);

+	free(data);

 	return arcs;

 arcfail:

 	miFreeArcs(arcs, pGC);

-	xfree(data);

+	free(data);

 	return NULL;

 }

 

@@ -3020,7 +3018,7 @@ realAllocSpan (void)
 	struct finalSpan	*span;

 	int			i;

 

-	newChunk = xalloc (sizeof (struct finalSpanChunk));

+	newChunk = malloc(sizeof (struct finalSpanChunk));

 	if (!newChunk)

 		return (struct finalSpan *) NULL;

 	newChunk->next = chunks;

@@ -3043,11 +3041,11 @@ disposeFinalSpans (void)
 

 	for (chunk = chunks; chunk; chunk = next) {

 		next = chunk->next;

-		xfree (chunk);

+		free(chunk);

 	}

 	chunks = 0;

 	freeFinalSpans = 0;

-	xfree(finalSpans);

+	free(finalSpans);

 	finalSpans = 0;

 }

 

@@ -3067,8 +3065,8 @@ fillSpans (
 

 	if (nspans == 0)

 		return;

-	xSpan = xSpans = xalloc (nspans * sizeof (DDXPointRec));

-	xWidth = xWidths = xalloc (nspans * sizeof (int));

+	xSpan = xSpans = malloc(nspans * sizeof (DDXPointRec));

+	xWidth = xWidths = malloc(nspans * sizeof (int));

 	if (xSpans && xWidths)

 	{

 	    i = 0;

@@ -3088,9 +3086,9 @@ fillSpans (
 	}

 	disposeFinalSpans ();

 	if (xSpans)

-	    xfree (xSpans);

+	    free(xSpans);

 	if (xWidths)

-	    xfree (xWidths);

+	    free(xWidths);

 	finalMiny = 0;

 	finalMaxy = -1;

 	finalSize = 0;

@@ -3125,7 +3123,7 @@ realFindSpan (int y)
 		else

 			change = SPAN_REALLOC;

 		newSize = finalSize + change;

-		newSpans = xalloc(newSize * sizeof (struct finalSpan *));

+		newSpans = malloc(newSize * sizeof (struct finalSpan *));

 		if (!newSpans)

 		    return NULL;

 		newMiny = finalMiny;

@@ -3138,7 +3136,7 @@ realFindSpan (int y)
 			memmove(((char *) newSpans) + (finalMiny-newMiny) * sizeof (struct finalSpan *),

 				(char *) finalSpans,

 			       finalSize * sizeof (struct finalSpan *));

-			xfree (finalSpans);

+			free(finalSpans);

 		}

 		if ((i = finalMiny - newMiny) > 0)

 			bzero ((char *)newSpans, i * sizeof (struct finalSpan *));

@@ -3481,7 +3479,7 @@ drawArc (
 			left->counterClock = temp;

 		}

 	}

-	xfree(spdata);

+	free(spdata);

 }

 

 static void

diff --git a/xorg-server/mi/mibitblt.c b/xorg-server/mi/mibitblt.c
index cc8b11d9c..b1e188d5a 100644
--- a/xorg-server/mi/mibitblt.c
+++ b/xorg-server/mi/mibitblt.c
@@ -1,831 +1,830 @@
-/***********************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-/* Author: Todd Newman  (aided and abetted by Mr. Drewry) */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xprotostr.h>
-
-#include "misc.h"
-#include "gcstruct.h"
-#include "pixmapstr.h"
-#include "windowstr.h"
-#include "scrnintstr.h"
-#include "mi.h"
-#include "regionstr.h"
-#include <X11/Xmd.h>
-#include "servermd.h"
-
-#ifndef HAS_FFS
-extern int ffs(int);
-#endif
-
-/* MICOPYAREA -- public entry for the CopyArea request 
- * For each rectangle in the source region
- *     get the pixels with GetSpans
- *     set them in the destination with SetSpans
- * We let SetSpans worry about clipping to the destination.
- */
-RegionPtr
-miCopyArea(DrawablePtr  pSrcDrawable,
-           DrawablePtr  pDstDrawable,
-           GCPtr        pGC,
-           int          xIn,
-           int          yIn,
-           int          widthSrc,
-           int          heightSrc,
-           int          xOut,
-           int          yOut)
-{
-    DDXPointPtr		ppt, pptFirst;
-    unsigned int	*pwidthFirst, *pwidth, *pbits;
-    BoxRec 		srcBox, *prect;
-    			/* may be a new region, or just a copy */
-    RegionPtr 		prgnSrcClip;
-    			/* non-0 if we've created a src clip */
-    RegionPtr		prgnExposed;
-    int 		realSrcClip = 0;
-    int			srcx, srcy, dstx, dsty, i, j, y, width, height,
-    			xMin, xMax, yMin, yMax;
-    unsigned int	*ordering;
-    int			numRects;
-    BoxPtr		boxes;
-
-    srcx = xIn + pSrcDrawable->x;
-    srcy = yIn + pSrcDrawable->y;
-
-    /* If the destination isn't realized, this is easy */
-    if (pDstDrawable->type == DRAWABLE_WINDOW &&
-	!((WindowPtr)pDstDrawable)->realized)
-	return NULL;
-
-    /* clip the source */
-    if (pSrcDrawable->type == DRAWABLE_PIXMAP)
-    {
-	BoxRec box;
-
-	box.x1 = pSrcDrawable->x;
-	box.y1 = pSrcDrawable->y;
-	box.x2 = pSrcDrawable->x + (int) pSrcDrawable->width;
-	box.y2 = pSrcDrawable->y + (int) pSrcDrawable->height;
-
-	prgnSrcClip = REGION_CREATE(pGC->pScreen, &box, 1);
-	realSrcClip = 1;
-    }
-    else
-    {
-	if (pGC->subWindowMode == IncludeInferiors) {
-	    prgnSrcClip = NotClippedByChildren ((WindowPtr) pSrcDrawable);
-	    realSrcClip = 1;
-	} else
-	    prgnSrcClip = &((WindowPtr)pSrcDrawable)->clipList;
-    }
-
-    /* If the src drawable is a window, we need to translate the srcBox so
-     * that we can compare it with the window's clip region later on. */
-    srcBox.x1 = srcx;
-    srcBox.y1 = srcy;
-    srcBox.x2 = srcx  + widthSrc;
-    srcBox.y2 = srcy  + heightSrc;
-
-    dstx = xOut;
-    dsty = yOut;
-    if (pGC->miTranslate)
-    {
-	dstx += pDstDrawable->x;
-	dsty += pDstDrawable->y;
-    }
-
-    pptFirst = ppt = xalloc(heightSrc * sizeof(DDXPointRec));
-    pwidthFirst = pwidth = xalloc(heightSrc * sizeof(unsigned int));
-    numRects = REGION_NUM_RECTS(prgnSrcClip);
-    boxes = REGION_RECTS(prgnSrcClip);
-    ordering = xalloc(numRects * sizeof(unsigned int));
-    if(!pptFirst || !pwidthFirst || !ordering)
-    {
-       if (ordering)
-	   xfree(ordering);
-       if (pwidthFirst)
-           xfree(pwidthFirst);
-       if (pptFirst)
-           xfree(pptFirst);
-       return NULL;
-    }
-
-    /* If not the same drawable then order of move doesn't matter.
-       Following assumes that boxes are sorted from top
-       to bottom and left to right.
-    */
-    if ((pSrcDrawable != pDstDrawable) &&
-	((pGC->subWindowMode != IncludeInferiors) ||
-	 (pSrcDrawable->type == DRAWABLE_PIXMAP) ||
-	 (pDstDrawable->type == DRAWABLE_PIXMAP)))
-      for (i=0; i < numRects; i++)
-        ordering[i] = i;
-    else { /* within same drawable, must sequence moves carefully! */
-      if (dsty <= srcBox.y1) { /* Scroll up or stationary vertical.
-                                  Vertical order OK */
-        if (dstx <= srcBox.x1) /* Scroll left or stationary horizontal.
-                                  Horizontal order OK as well */
-          for (i=0; i < numRects; i++)
-            ordering[i] = i;
-        else { /* scroll right. must reverse horizontal banding of rects. */
-          for (i=0, j=1, xMax=0; i < numRects; j=i+1, xMax=i) {
-            /* find extent of current horizontal band */
-            y=boxes[i].y1; /* band has this y coordinate */
-            while ((j < numRects) && (boxes[j].y1 == y))
-              j++;
-            /* reverse the horizontal band in the output ordering */
-            for (j-- ; j >= xMax; j--, i++)
-              ordering[i] = j;
-          }
-        }
-      }
-      else { /* Scroll down. Must reverse vertical banding. */
-        if (dstx < srcBox.x1) { /* Scroll left. Horizontal order OK. */
-          for (i=numRects-1, j=i-1, yMin=i, yMax=0;
-              i >= 0;
-              j=i-1, yMin=i) {
-            /* find extent of current horizontal band */
-            y=boxes[i].y1; /* band has this y coordinate */
-            while ((j >= 0) && (boxes[j].y1 == y))
-              j--;
-            /* reverse the horizontal band in the output ordering */
-            for (j++ ; j <= yMin; j++, i--, yMax++)
-              ordering[yMax] = j;
-          }
-        }
-        else /* Scroll right or horizontal stationary.
-                Reverse horizontal order as well (if stationary, horizontal
-                order can be swapped without penalty and this is faster
-                to compute). */
-          for (i=0, j=numRects-1; i < numRects; i++, j--)
-              ordering[i] = j;
-      }
-    }
- 
-     for(i = 0; i < numRects; i++)
-     {
-        prect = &boxes[ordering[i]];
-  	xMin = max(prect->x1, srcBox.x1);
-  	xMax = min(prect->x2, srcBox.x2);
-  	yMin = max(prect->y1, srcBox.y1);
-	yMax = min(prect->y2, srcBox.y2);
-	/* is there anything visible here? */
-	if(xMax <= xMin || yMax <= yMin)
-	    continue;
-
-        ppt = pptFirst;
-	pwidth = pwidthFirst;
-	y = yMin;
-	height = yMax - yMin;
-	width = xMax - xMin;
-
-	for(j = 0; j < height; j++)
-	{
-	    /* We must untranslate before calling GetSpans */
-	    ppt->x = xMin;
-	    ppt++->y = y++;
-	    *pwidth++ = width;
-	}
-	pbits = xalloc(height * PixmapBytePad(width, pSrcDrawable->depth));
-	if (pbits)
-	{
-	    (*pSrcDrawable->pScreen->GetSpans)(pSrcDrawable, width, pptFirst,
-			(int *)pwidthFirst, height, (char *)pbits);
-	    ppt = pptFirst;
-	    pwidth = pwidthFirst;
-	    xMin -= (srcx - dstx);
-	    y = yMin - (srcy - dsty);
-	    for(j = 0; j < height; j++)
-	    {
-		ppt->x = xMin;
-		ppt++->y = y++;
-		*pwidth++ = width;
-	    }
-
-	    (*pGC->ops->SetSpans)(pDstDrawable, pGC, (char *)pbits, pptFirst,
-				  (int *)pwidthFirst, height, TRUE);
-	    xfree(pbits);
-	}
-    }
-    prgnExposed = miHandleExposures(pSrcDrawable, pDstDrawable, pGC, xIn, yIn,
-		      widthSrc, heightSrc, xOut, yOut, (unsigned long)0);
-    if(realSrcClip)
-	REGION_DESTROY(pGC->pScreen, prgnSrcClip);
-		
-    xfree(ordering);
-    xfree(pwidthFirst);
-    xfree(pptFirst);
-    return prgnExposed;
-}
-
-/* MIGETPLANE -- gets a bitmap representing one plane of pDraw
- * A helper used for CopyPlane and XY format GetImage 
- * No clever strategy here, we grab a scanline at a time, pull out the
- * bits and then stuff them in a 1 bit deep map.
- */
-/*
- * This should be replaced with something more general.  mi shouldn't have to
- * care about such things as scanline padding et alia.
- */
-static
-MiBits	*
-miGetPlane(
-    DrawablePtr		pDraw,
-    int			planeNum,	/* number of the bitPlane */
-    int			sx,
-    int			sy,
-    int			w,
-    int			h,
-    MiBits	*result)
-{
-    int			i, j, k, width, bitsPerPixel, widthInBytes;
-    DDXPointRec 	pt = {0, 0};
-    MiBits	pixel;
-    MiBits	bit;
-    unsigned char	*pCharsOut = NULL;
-
-#if BITMAP_SCANLINE_UNIT == 8
-#define OUT_TYPE unsigned char
-#endif
-#if BITMAP_SCANLINE_UNIT == 16
-#define OUT_TYPE CARD16
-#endif
-#if BITMAP_SCANLINE_UNIT == 32
-#define OUT_TYPE CARD32
-#endif
-#if BITMAP_SCANLINE_UNIT == 64
-#define OUT_TYPE CARD64
-#endif
-
-    OUT_TYPE		*pOut;
-    int			delta = 0;
-
-    sx += pDraw->x;
-    sy += pDraw->y;
-    widthInBytes = BitmapBytePad(w);
-    if(!result)
-        result = xcalloc(h, widthInBytes);
-    if (!result)
-	return NULL;
-    bitsPerPixel = pDraw->bitsPerPixel;
-    pOut = (OUT_TYPE *) result;
-    if(bitsPerPixel == 1)
-    {
-	pCharsOut = (unsigned char *) result;
-    	width = w;
-    }
-    else
-    {
-	delta = (widthInBytes / (BITMAP_SCANLINE_UNIT / 8)) -
-	    (w / BITMAP_SCANLINE_UNIT);
-	width = 1;
-#if IMAGE_BYTE_ORDER == MSBFirst
-	planeNum += (32 - bitsPerPixel);
-#endif
-    }
-    pt.y = sy;
-    for (i = h; --i >= 0; pt.y++)
-    {
-	pt.x = sx;
-	if(bitsPerPixel == 1)
-	{
-	    (*pDraw->pScreen->GetSpans)(pDraw, width, &pt, &width, 1,
-					(char *)pCharsOut);
-	    pCharsOut += widthInBytes;
-	}
-	else
-	{
-	    k = 0;
-	    for(j = w; --j >= 0; pt.x++)
-	    {
-		/* Fetch the next pixel */
-		(*pDraw->pScreen->GetSpans)(pDraw, width, &pt, &width, 1,
-					    (char *)&pixel);
-		/*
-		 * Now get the bit and insert into a bitmap in XY format.
-		 */
-		bit = (pixel >> planeNum) & 1;
-#if 0
-		/* XXX assuming bit order == byte order */
-#if BITMAP_BIT_ORDER == LSBFirst
-		bit <<= k;
-#else
-		bit <<= ((BITMAP_SCANLINE_UNIT - 1) - k);
-#endif
-#else
-		/* XXX assuming byte order == LSBFirst */
-		if (screenInfo.bitmapBitOrder == LSBFirst)
-			bit <<= k;
-		else
-			bit <<= ((screenInfo.bitmapScanlineUnit - 1) -
-				 (k % screenInfo.bitmapScanlineUnit)) +
-				((k / screenInfo.bitmapScanlineUnit) *
-				 screenInfo.bitmapScanlineUnit);
-#endif
-		*pOut |= (OUT_TYPE) bit;
-		k++;
-		if (k == BITMAP_SCANLINE_UNIT)
-		{
-		    pOut++;
-		    k = 0;
-		}
-	    }
-	    pOut += delta;
-	}
-    }
-    return(result);    
-
-}
-
-/* MIOPQSTIPDRAWABLE -- use pbits as an opaque stipple for pDraw.
- * Drawing through the clip mask we SetSpans() the bits into a 
- * bitmap and stipple those bits onto the destination drawable by doing a
- * PolyFillRect over the whole drawable, 
- * then we invert the bitmap by copying it onto itself with an alu of
- * GXinvert, invert the foreground/background colors of the gc, and draw
- * the background bits.
- * Note how the clipped out bits of the bitmap are always the background
- * color so that the stipple never causes FillRect to draw them.
- */
-static void
-miOpqStipDrawable(DrawablePtr pDraw, GCPtr pGC, RegionPtr prgnSrc,
-		  MiBits *pbits, int srcx, int w, int h, int dstx, int dsty)
-{
-    int		oldfill, i;
-    unsigned long oldfg;
-    int		*pwidth, *pwidthFirst;
-    ChangeGCVal	gcv[6];
-    PixmapPtr	pStipple, pPixmap;
-    DDXPointRec	oldOrg;
-    GCPtr	pGCT;
-    DDXPointPtr ppt, pptFirst;
-    xRectangle rect;
-    RegionPtr	prgnSrcClip;
-
-    pPixmap = (*pDraw->pScreen->CreatePixmap)
-			   (pDraw->pScreen, w + srcx, h, 1,
-			    CREATE_PIXMAP_USAGE_SCRATCH);
-    if (!pPixmap)
-	return;
-
-    /* Put the image into a 1 bit deep pixmap */
-    pGCT = GetScratchGC(1, pDraw->pScreen);
-    if (!pGCT)
-    {
-	(*pDraw->pScreen->DestroyPixmap)(pPixmap);
-	return;
-    }
-    /* First set the whole pixmap to 0 */
-    gcv[0].val = 0;
-    dixChangeGC(NullClient, pGCT, GCBackground, NULL, gcv);
-    ValidateGC((DrawablePtr)pPixmap, pGCT);
-    miClearDrawable((DrawablePtr)pPixmap, pGCT);
-    ppt = pptFirst = xalloc(h * sizeof(DDXPointRec));
-    pwidth = pwidthFirst = xalloc(h * sizeof(int));
-    if(!pptFirst || !pwidthFirst)
-    {
-	if (pwidthFirst) xfree(pwidthFirst);
-	if (pptFirst) xfree(pptFirst);
-	FreeScratchGC(pGCT);
-	return;
-    }
-
-    /* we need a temporary region because ChangeClip must be assumed
-       to destroy what it's sent.  note that this means we don't
-       have to free prgnSrcClip ourselves.
-    */
-    prgnSrcClip = REGION_CREATE(pGCT->pScreen, NULL, 0);
-    REGION_COPY(pGCT->pScreen, prgnSrcClip, prgnSrc);
-    REGION_TRANSLATE(pGCT->pScreen, prgnSrcClip, srcx, 0);
-    (*pGCT->funcs->ChangeClip)(pGCT, CT_REGION, prgnSrcClip, 0);
-    ValidateGC((DrawablePtr)pPixmap, pGCT);
-
-    /* Since we know pDraw is always a pixmap, we never need to think
-     * about translation here */
-    for(i = 0; i < h; i++)
-    {
-	ppt->x = 0;
-	ppt++->y = i;
-	*pwidth++ = w + srcx;
-    }
-
-    (*pGCT->ops->SetSpans)((DrawablePtr)pPixmap, pGCT, (char *)pbits,
-			   pptFirst, pwidthFirst, h, TRUE);
-    xfree(pwidthFirst);
-    xfree(pptFirst);
-
-
-    /* Save current values from the client GC */
-    oldfill = pGC->fillStyle;
-    pStipple = pGC->stipple;
-    if(pStipple)
-        pStipple->refcnt++;
-    oldOrg = pGC->patOrg;
-
-    /* Set a new stipple in the drawable */
-    gcv[0].val = FillStippled;
-    gcv[1].ptr = pPixmap;
-    gcv[2].val = dstx - srcx;
-    gcv[3].val = dsty;
-
-    dixChangeGC(NullClient, pGC,
-             GCFillStyle | GCStipple | GCTileStipXOrigin | GCTileStipYOrigin,
-	     NULL, gcv);
-    ValidateGC(pDraw, pGC);
-
-    /* Fill the drawable with the stipple.  This will draw the
-     * foreground color whereever 1 bits are set, leaving everything
-     * with 0 bits untouched.  Note that the part outside the clip
-     * region is all 0s.  */
-    rect.x = dstx;
-    rect.y = dsty;
-    rect.width = w;
-    rect.height = h;
-    (*pGC->ops->PolyFillRect)(pDraw, pGC, 1, &rect);
-
-    /* Invert the tiling pixmap. This sets 0s for 1s and 1s for 0s, only
-     * within the clipping region, the part outside is still all 0s */
-    gcv[0].val = GXinvert;
-    dixChangeGC(NullClient, pGCT, GCFunction, NULL, gcv);
-    ValidateGC((DrawablePtr)pPixmap, pGCT);
-    (*pGCT->ops->CopyArea)((DrawablePtr)pPixmap, (DrawablePtr)pPixmap,
-			   pGCT, 0, 0, w + srcx, h, 0, 0);
-
-    /* Swap foreground and background colors on the GC for the drawable.
-     * Now when we fill the drawable, we will fill in the "Background"
-     * values */
-    oldfg = pGC->fgPixel;
-    gcv[0].val = pGC->bgPixel;
-    gcv[1].val = oldfg;
-    gcv[2].ptr = pPixmap;
-    dixChangeGC(NullClient, pGC, GCForeground | GCBackground | GCStipple,
-		NULL, gcv);
-    ValidateGC(pDraw, pGC);
-    /* PolyFillRect might have bashed the rectangle */
-    rect.x = dstx;
-    rect.y = dsty;
-    rect.width = w;
-    rect.height = h;
-    (*pGC->ops->PolyFillRect)(pDraw, pGC, 1, &rect);
-
-    /* Now put things back */
-    if(pStipple)
-        pStipple->refcnt--;
-    gcv[0].val = oldfg;
-    gcv[1].val = pGC->fgPixel;
-    gcv[2].val = oldfill;
-    gcv[3].ptr = pStipple;
-    gcv[4].val = oldOrg.x;
-    gcv[5].val = oldOrg.y;
-    dixChangeGC(NullClient, pGC, 
-        GCForeground | GCBackground | GCFillStyle | GCStipple | 
-	GCTileStipXOrigin | GCTileStipYOrigin, NULL, gcv);
-
-    ValidateGC(pDraw, pGC);
-    /* put what we hope is a smaller clip region back in the scratch gc */
-    (*pGCT->funcs->ChangeClip)(pGCT, CT_NONE, NULL, 0);
-    FreeScratchGC(pGCT);
-    (*pDraw->pScreen->DestroyPixmap)(pPixmap);
-
-}
-
-/* MICOPYPLANE -- public entry for the CopyPlane request.
- * strategy: 
- * First build up a bitmap out of the bits requested 
- * build a source clip
- * Use the bitmap we've built up as a Stipple for the destination 
- */
-RegionPtr
-miCopyPlane( DrawablePtr pSrcDrawable,
-             DrawablePtr pDstDrawable,
-             GCPtr pGC,
-             int srcx,
-             int srcy,
-             int width,
-             int height,
-             int dstx,
-             int dsty,
-             unsigned long bitPlane)
-{
-    MiBits	*ptile;
-    BoxRec 		box;
-    RegionPtr		prgnSrc, prgnExposed;
-
-    /* incorporate the source clip */
-
-    box.x1 = srcx + pSrcDrawable->x;
-    box.y1 = srcy + pSrcDrawable->y;
-    box.x2 = box.x1 + width;
-    box.y2 = box.y1 + height;
-    /* clip to visible drawable */
-    if (box.x1 < pSrcDrawable->x)
-	box.x1 = pSrcDrawable->x;
-    if (box.y1 < pSrcDrawable->y)
-	box.y1 = pSrcDrawable->y;
-    if (box.x2 > pSrcDrawable->x + (int) pSrcDrawable->width)
-	box.x2 = pSrcDrawable->x + (int) pSrcDrawable->width;
-    if (box.y2 > pSrcDrawable->y + (int) pSrcDrawable->height)
-	box.y2 = pSrcDrawable->y + (int) pSrcDrawable->height;
-    if (box.x1 > box.x2)
-	box.x2 = box.x1;
-    if (box.y1 > box.y2)
-	box.y2 = box.y1;
-    prgnSrc = REGION_CREATE(pGC->pScreen, &box, 1);
-
-    if (pSrcDrawable->type != DRAWABLE_PIXMAP) {
-	/* clip to visible drawable */
-
-	if (pGC->subWindowMode == IncludeInferiors)
-	{
-	    RegionPtr	clipList = NotClippedByChildren ((WindowPtr) pSrcDrawable);
-	    REGION_INTERSECT(pGC->pScreen, prgnSrc, prgnSrc, clipList);
-	    REGION_DESTROY(pGC->pScreen, clipList);
-	} else
-	    REGION_INTERSECT(pGC->pScreen, prgnSrc, prgnSrc,
-				       &((WindowPtr)pSrcDrawable)->clipList);
-    }
-
-    box = *REGION_EXTENTS(pGC->pScreen, prgnSrc);
-    REGION_TRANSLATE(pGC->pScreen, prgnSrc, -box.x1, -box.y1);
-
-    if ((box.x2 > box.x1) && (box.y2 > box.y1))
-    {
-	/* minimize the size of the data extracted */
-	/* note that we convert the plane mask bitPlane into a plane number */
-	box.x1 -= pSrcDrawable->x;
-	box.x2 -= pSrcDrawable->x;
-	box.y1 -= pSrcDrawable->y;
-	box.y2 -= pSrcDrawable->y;
-	ptile = miGetPlane(pSrcDrawable, ffs(bitPlane) - 1,
-			   box.x1, box.y1,
-			   box.x2 - box.x1, box.y2 - box.y1,
-			   (MiBits *) NULL);
-	if (ptile)
-	{
-	    miOpqStipDrawable(pDstDrawable, pGC, prgnSrc, ptile, 0,
-			      box.x2 - box.x1, box.y2 - box.y1,
-			      dstx + box.x1 - srcx, dsty + box.y1 - srcy);
-	    xfree(ptile);
-	}
-    }
-    prgnExposed = miHandleExposures(pSrcDrawable, pDstDrawable, pGC, srcx, srcy,
-		      width, height, dstx, dsty, bitPlane);
-    REGION_DESTROY(pGC->pScreen, prgnSrc);
-    return prgnExposed;
-}
-
-/* MIGETIMAGE -- public entry for the GetImage Request
- * We're getting the image into a memory buffer. While we have to use GetSpans
- * to read a line from the device (since we don't know what that looks like),
- * we can just write into the destination buffer
- *
- * two different strategies are used, depending on whether we're getting the
- * image in Z format or XY format
- * Z format:
- * Line at a time, GetSpans a line into the destination buffer, then if the
- * planemask is not all ones, we do a SetSpans into a temporary buffer (to get
- * bits turned off) and then another GetSpans to get stuff back (because
- * pixmaps are opaque, and we are passed in the memory to write into).  This is
- * pretty ugly and slow but works.  Life is hard.
- * XY format:
- * get the single plane specified in planemask
- */
-void
-miGetImage( DrawablePtr pDraw, int sx, int sy, int w, int h,
-            unsigned int format, unsigned long planeMask, char *pDst)
-{
-    unsigned char	depth;
-    int			i, linelength, width, srcx, srcy;
-    DDXPointRec		pt = {0, 0};
-    XID			gcv[2];
-    PixmapPtr		pPixmap = NULL;
-    GCPtr		pGC = NULL;
-
-    depth = pDraw->depth;
-    if(format == ZPixmap)
-    {
-	if ( (((1<<depth)-1)&planeMask) != (1<<depth)-1 )
-	{
-	    xPoint pt;
-
-	    pGC = GetScratchGC(depth, pDraw->pScreen);
-	    if (!pGC)
-		return;
-            pPixmap = (*pDraw->pScreen->CreatePixmap)
-			       (pDraw->pScreen, w, 1, depth,
-			        CREATE_PIXMAP_USAGE_SCRATCH);
-	    if (!pPixmap)
-	    {
-		FreeScratchGC(pGC);
-		return;
-	    }
- 	    /*
- 	     * Clear the pixmap before doing anything else
- 	     */
- 	    ValidateGC((DrawablePtr)pPixmap, pGC);
- 	    pt.x = pt.y = 0;
-            width = w;
-	    (*pGC->ops->FillSpans)((DrawablePtr)pPixmap, pGC, 1, &pt, &width,
-				   TRUE);
- 
-	    /* alu is already GXCopy */
-	    gcv[0] = (XID)planeMask;
-	    DoChangeGC(pGC, GCPlaneMask, gcv, 0);
-	    ValidateGC((DrawablePtr)pPixmap, pGC);
-	}
-
-        linelength = PixmapBytePad(w, depth);
-	srcx = sx + pDraw->x;
-	srcy = sy + pDraw->y;
-	for(i = 0; i < h; i++)
-	{
-	    pt.x = srcx;
-	    pt.y = srcy + i;
-	    width = w;
-	    (*pDraw->pScreen->GetSpans)(pDraw, w, &pt, &width, 1, pDst);
-	    if (pPixmap)
-	    {
-	       pt.x = 0;
-	       pt.y = 0;
-	       width = w;
-	       (*pGC->ops->SetSpans)((DrawablePtr)pPixmap, pGC, pDst,
-				     &pt, &width, 1, TRUE);
-	       (*pDraw->pScreen->GetSpans)((DrawablePtr)pPixmap, w, &pt,
-					   &width, 1, pDst);
-	    }
-	    pDst += linelength;
-	}
-	if (pPixmap)
-	{
-	    (*pGC->pScreen->DestroyPixmap)(pPixmap);
-	    FreeScratchGC(pGC);
-	}
-    }
-    else
-    {
-	(void) miGetPlane(pDraw, ffs(planeMask) - 1, sx, sy, w, h,
-			  (MiBits *)pDst);
-    }
-}
-
-/* MIPUTIMAGE -- public entry for the PutImage request
- * Here we benefit from knowing the format of the bits pointed to by pImage,
- * even if we don't know how pDraw represents them.  
- * Three different strategies are used depending on the format 
- * XYBitmap Format:
- * 	we just use the Opaque Stipple helper function to cover the destination
- * 	Note that this covers all the planes of the drawable with the 
- *	foreground color (masked with the GC planemask) where there are 1 bits
- *	and the background color (masked with the GC planemask) where there are
- *	0 bits
- * XYPixmap format:
- *	what we're called with is a series of XYBitmaps, but we only want 
- *	each XYPixmap to update 1 plane, instead of updating all of them.
- * 	we set the foreground color to be all 1s and the background to all 0s
- *	then for each plane, we set the plane mask to only effect that one
- *	plane and recursive call ourself with the format set to XYBitmap
- *	(This clever idea courtesy of RGD.)
- * ZPixmap format:
- *	This part is simple, just call SetSpans
- */
-void
-miPutImage( DrawablePtr pDraw, GCPtr pGC, int depth,
-            int x, int y, int w, int h,
-            int leftPad, int format, char *pImage)
-{
-    DDXPointPtr		pptFirst, ppt;
-    int			*pwidthFirst, *pwidth;
-    RegionPtr		prgnSrc;
-    BoxRec		box;
-    unsigned long	oldFg, oldBg;
-    XID			gcv[3];
-    unsigned long	oldPlanemask;
-    unsigned long	i;
-    long		bytesPer;
-
-    if (!w || !h)
-	return;
-    switch(format)
-    {
-      case XYBitmap:
-
-	box.x1 = 0;
-	box.y1 = 0;
-	box.x2 = w;
-	box.y2 = h;
-	prgnSrc = REGION_CREATE(pGC->pScreen, &box, 1);
-
-        miOpqStipDrawable(pDraw, pGC, prgnSrc, (MiBits *) pImage,
-			  leftPad, w, h, x, y);
-	REGION_DESTROY(pGC->pScreen, prgnSrc);
-	break;
-
-      case XYPixmap:
-	depth = pGC->depth;
-	oldPlanemask = pGC->planemask;
-	oldFg = pGC->fgPixel;
-	oldBg = pGC->bgPixel;
-	gcv[0] = (XID)~0;
-	gcv[1] = (XID)0;
-	DoChangeGC(pGC, GCForeground | GCBackground, gcv, 0);
-	bytesPer = (long)h * BitmapBytePad(w + leftPad);
-
-	for (i = 1 << (depth-1); i != 0; i >>= 1, pImage += bytesPer)
-	{
-	    if (i & oldPlanemask)
-	    {
-	        gcv[0] = (XID)i;
-	        DoChangeGC(pGC, GCPlaneMask, gcv, 0);
-	        ValidateGC(pDraw, pGC);
-	        (*pGC->ops->PutImage)(pDraw, pGC, 1, x, y, w, h, leftPad,
-			         XYBitmap, (char *)pImage);
-	    }
-	}
-	gcv[0] = (XID)oldPlanemask;
-	gcv[1] = (XID)oldFg;
-	gcv[2] = (XID)oldBg;
-	DoChangeGC(pGC, GCPlaneMask | GCForeground | GCBackground, gcv, 0);
-	ValidateGC(pDraw, pGC);
-	break;
-
-      case ZPixmap:
-    	ppt = pptFirst = xalloc(h * sizeof(DDXPointRec));
-    	pwidth = pwidthFirst = xalloc(h * sizeof(int));
-	if(!pptFirst || !pwidthFirst)
-        {
-	   if (pwidthFirst)
-               xfree(pwidthFirst);
-           if (pptFirst)
-               xfree(pptFirst);
-           return;
-        }
-	if (pGC->miTranslate)
-	{
-	    x += pDraw->x;
-	    y += pDraw->y;
-	}
-
-	for(i = 0; i < h; i++)
-	{
-	    ppt->x = x;
-	    ppt->y = y + i;
-	    ppt++;
-	    *pwidth++ = w;
-	}
-
-	(*pGC->ops->SetSpans)(pDraw, pGC, (char *)pImage, pptFirst,
-			      pwidthFirst, h, TRUE);
-	xfree(pwidthFirst);
-	xfree(pptFirst);
-	break;
-    }
-}
+/***********************************************************

+

+Copyright 1987, 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.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+******************************************************************/

+/* Author: Todd Newman  (aided and abetted by Mr. Drewry) */

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <X11/X.h>

+#include <X11/Xprotostr.h>

+

+#include "misc.h"

+#include "gcstruct.h"

+#include "pixmapstr.h"

+#include "windowstr.h"

+#include "scrnintstr.h"

+#include "mi.h"

+#include "regionstr.h"

+#include <X11/Xmd.h>

+#include "servermd.h"

+

+#ifndef HAS_FFS

+extern int ffs(int);

+#endif

+

+/* MICOPYAREA -- public entry for the CopyArea request 

+ * For each rectangle in the source region

+ *     get the pixels with GetSpans

+ *     set them in the destination with SetSpans

+ * We let SetSpans worry about clipping to the destination.

+ */

+RegionPtr

+miCopyArea(DrawablePtr  pSrcDrawable,

+           DrawablePtr  pDstDrawable,

+           GCPtr        pGC,

+           int          xIn,

+           int          yIn,

+           int          widthSrc,

+           int          heightSrc,

+           int          xOut,

+           int          yOut)

+{

+    DDXPointPtr		ppt, pptFirst;

+    unsigned int	*pwidthFirst, *pwidth, *pbits;

+    BoxRec 		srcBox, *prect;

+    			/* may be a new region, or just a copy */

+    RegionPtr 		prgnSrcClip;

+    			/* non-0 if we've created a src clip */

+    RegionPtr		prgnExposed;

+    int 		realSrcClip = 0;

+    int			srcx, srcy, dstx, dsty, i, j, y, width, height,

+    			xMin, xMax, yMin, yMax;

+    unsigned int	*ordering;

+    int			numRects;

+    BoxPtr		boxes;

+

+    srcx = xIn + pSrcDrawable->x;

+    srcy = yIn + pSrcDrawable->y;

+

+    /* If the destination isn't realized, this is easy */

+    if (pDstDrawable->type == DRAWABLE_WINDOW &&

+	!((WindowPtr)pDstDrawable)->realized)

+	return NULL;

+

+    /* clip the source */

+    if (pSrcDrawable->type == DRAWABLE_PIXMAP)

+    {

+	BoxRec box;

+

+	box.x1 = pSrcDrawable->x;

+	box.y1 = pSrcDrawable->y;

+	box.x2 = pSrcDrawable->x + (int) pSrcDrawable->width;

+	box.y2 = pSrcDrawable->y + (int) pSrcDrawable->height;

+

+	prgnSrcClip = REGION_CREATE(pGC->pScreen, &box, 1);

+	realSrcClip = 1;

+    }

+    else

+    {

+	if (pGC->subWindowMode == IncludeInferiors) {

+	    prgnSrcClip = NotClippedByChildren ((WindowPtr) pSrcDrawable);

+	    realSrcClip = 1;

+	} else

+	    prgnSrcClip = &((WindowPtr)pSrcDrawable)->clipList;

+    }

+

+    /* If the src drawable is a window, we need to translate the srcBox so

+     * that we can compare it with the window's clip region later on. */

+    srcBox.x1 = srcx;

+    srcBox.y1 = srcy;

+    srcBox.x2 = srcx  + widthSrc;

+    srcBox.y2 = srcy  + heightSrc;

+

+    dstx = xOut;

+    dsty = yOut;

+    if (pGC->miTranslate)

+    {

+	dstx += pDstDrawable->x;

+	dsty += pDstDrawable->y;

+    }

+

+    pptFirst = ppt = malloc(heightSrc * sizeof(DDXPointRec));

+    pwidthFirst = pwidth = malloc(heightSrc * sizeof(unsigned int));

+    numRects = REGION_NUM_RECTS(prgnSrcClip);

+    boxes = REGION_RECTS(prgnSrcClip);

+    ordering = malloc(numRects * sizeof(unsigned int));

+    if(!pptFirst || !pwidthFirst || !ordering)

+    {

+       if (ordering)

+	   free(ordering);

+       if (pwidthFirst)

+           free(pwidthFirst);

+       if (pptFirst)

+           free(pptFirst);

+       return NULL;

+    }

+

+    /* If not the same drawable then order of move doesn't matter.

+       Following assumes that boxes are sorted from top

+       to bottom and left to right.

+    */

+    if ((pSrcDrawable != pDstDrawable) &&

+	((pGC->subWindowMode != IncludeInferiors) ||

+	 (pSrcDrawable->type == DRAWABLE_PIXMAP) ||

+	 (pDstDrawable->type == DRAWABLE_PIXMAP)))

+      for (i=0; i < numRects; i++)

+        ordering[i] = i;

+    else { /* within same drawable, must sequence moves carefully! */

+      if (dsty <= srcBox.y1) { /* Scroll up or stationary vertical.

+                                  Vertical order OK */

+        if (dstx <= srcBox.x1) /* Scroll left or stationary horizontal.

+                                  Horizontal order OK as well */

+          for (i=0; i < numRects; i++)

+            ordering[i] = i;

+        else { /* scroll right. must reverse horizontal banding of rects. */

+          for (i=0, j=1, xMax=0; i < numRects; j=i+1, xMax=i) {

+            /* find extent of current horizontal band */

+            y=boxes[i].y1; /* band has this y coordinate */

+            while ((j < numRects) && (boxes[j].y1 == y))

+              j++;

+            /* reverse the horizontal band in the output ordering */

+            for (j-- ; j >= xMax; j--, i++)

+              ordering[i] = j;

+          }

+        }

+      }

+      else { /* Scroll down. Must reverse vertical banding. */

+        if (dstx < srcBox.x1) { /* Scroll left. Horizontal order OK. */

+          for (i=numRects-1, j=i-1, yMin=i, yMax=0;

+              i >= 0;

+              j=i-1, yMin=i) {

+            /* find extent of current horizontal band */

+            y=boxes[i].y1; /* band has this y coordinate */

+            while ((j >= 0) && (boxes[j].y1 == y))

+              j--;

+            /* reverse the horizontal band in the output ordering */

+            for (j++ ; j <= yMin; j++, i--, yMax++)

+              ordering[yMax] = j;

+          }

+        }

+        else /* Scroll right or horizontal stationary.

+                Reverse horizontal order as well (if stationary, horizontal

+                order can be swapped without penalty and this is faster

+                to compute). */

+          for (i=0, j=numRects-1; i < numRects; i++, j--)

+              ordering[i] = j;

+      }

+    }

+ 

+     for(i = 0; i < numRects; i++)

+     {

+        prect = &boxes[ordering[i]];

+  	xMin = max(prect->x1, srcBox.x1);

+  	xMax = min(prect->x2, srcBox.x2);

+  	yMin = max(prect->y1, srcBox.y1);

+	yMax = min(prect->y2, srcBox.y2);

+	/* is there anything visible here? */

+	if(xMax <= xMin || yMax <= yMin)

+	    continue;

+

+        ppt = pptFirst;

+	pwidth = pwidthFirst;

+	y = yMin;

+	height = yMax - yMin;

+	width = xMax - xMin;

+

+	for(j = 0; j < height; j++)

+	{

+	    /* We must untranslate before calling GetSpans */

+	    ppt->x = xMin;

+	    ppt++->y = y++;

+	    *pwidth++ = width;

+	}

+	pbits = malloc(height * PixmapBytePad(width, pSrcDrawable->depth));

+	if (pbits)

+	{

+	    (*pSrcDrawable->pScreen->GetSpans)(pSrcDrawable, width, pptFirst,

+			(int *)pwidthFirst, height, (char *)pbits);

+	    ppt = pptFirst;

+	    pwidth = pwidthFirst;

+	    xMin -= (srcx - dstx);

+	    y = yMin - (srcy - dsty);

+	    for(j = 0; j < height; j++)

+	    {

+		ppt->x = xMin;

+		ppt++->y = y++;

+		*pwidth++ = width;

+	    }

+

+	    (*pGC->ops->SetSpans)(pDstDrawable, pGC, (char *)pbits, pptFirst,

+				  (int *)pwidthFirst, height, TRUE);

+	    free(pbits);

+	}

+    }

+    prgnExposed = miHandleExposures(pSrcDrawable, pDstDrawable, pGC, xIn, yIn,

+		      widthSrc, heightSrc, xOut, yOut, (unsigned long)0);

+    if(realSrcClip)

+	REGION_DESTROY(pGC->pScreen, prgnSrcClip);

+		

+    free(ordering);

+    free(pwidthFirst);

+    free(pptFirst);

+    return prgnExposed;

+}

+

+/* MIGETPLANE -- gets a bitmap representing one plane of pDraw

+ * A helper used for CopyPlane and XY format GetImage 

+ * No clever strategy here, we grab a scanline at a time, pull out the

+ * bits and then stuff them in a 1 bit deep map.

+ */

+/*

+ * This should be replaced with something more general.  mi shouldn't have to

+ * care about such things as scanline padding et alia.

+ */

+static

+MiBits	*

+miGetPlane(

+    DrawablePtr		pDraw,

+    int			planeNum,	/* number of the bitPlane */

+    int			sx,

+    int			sy,

+    int			w,

+    int			h,

+    MiBits	*result)

+{

+    int			i, j, k, width, bitsPerPixel, widthInBytes;

+    DDXPointRec 	pt = {0, 0};

+    MiBits	pixel;

+    MiBits	bit;

+    unsigned char	*pCharsOut = NULL;

+

+#if BITMAP_SCANLINE_UNIT == 8

+#define OUT_TYPE unsigned char

+#endif

+#if BITMAP_SCANLINE_UNIT == 16

+#define OUT_TYPE CARD16

+#endif

+#if BITMAP_SCANLINE_UNIT == 32

+#define OUT_TYPE CARD32

+#endif

+#if BITMAP_SCANLINE_UNIT == 64

+#define OUT_TYPE CARD64

+#endif

+

+    OUT_TYPE		*pOut;

+    int			delta = 0;

+

+    sx += pDraw->x;

+    sy += pDraw->y;

+    widthInBytes = BitmapBytePad(w);

+    if(!result)

+        result = calloc(h, widthInBytes);

+    if (!result)

+	return NULL;

+    bitsPerPixel = pDraw->bitsPerPixel;

+    pOut = (OUT_TYPE *) result;

+    if(bitsPerPixel == 1)

+    {

+	pCharsOut = (unsigned char *) result;

+    	width = w;

+    }

+    else

+    {

+	delta = (widthInBytes / (BITMAP_SCANLINE_UNIT / 8)) -

+	    (w / BITMAP_SCANLINE_UNIT);

+	width = 1;

+#if IMAGE_BYTE_ORDER == MSBFirst

+	planeNum += (32 - bitsPerPixel);

+#endif

+    }

+    pt.y = sy;

+    for (i = h; --i >= 0; pt.y++)

+    {

+	pt.x = sx;

+	if(bitsPerPixel == 1)

+	{

+	    (*pDraw->pScreen->GetSpans)(pDraw, width, &pt, &width, 1,

+					(char *)pCharsOut);

+	    pCharsOut += widthInBytes;

+	}

+	else

+	{

+	    k = 0;

+	    for(j = w; --j >= 0; pt.x++)

+	    {

+		/* Fetch the next pixel */

+		(*pDraw->pScreen->GetSpans)(pDraw, width, &pt, &width, 1,

+					    (char *)&pixel);

+		/*

+		 * Now get the bit and insert into a bitmap in XY format.

+		 */

+		bit = (pixel >> planeNum) & 1;

+#if 0

+		/* XXX assuming bit order == byte order */

+#if BITMAP_BIT_ORDER == LSBFirst

+		bit <<= k;

+#else

+		bit <<= ((BITMAP_SCANLINE_UNIT - 1) - k);

+#endif

+#else

+		/* XXX assuming byte order == LSBFirst */

+		if (screenInfo.bitmapBitOrder == LSBFirst)

+			bit <<= k;

+		else

+			bit <<= ((screenInfo.bitmapScanlineUnit - 1) -

+				 (k % screenInfo.bitmapScanlineUnit)) +

+				((k / screenInfo.bitmapScanlineUnit) *

+				 screenInfo.bitmapScanlineUnit);

+#endif

+		*pOut |= (OUT_TYPE) bit;

+		k++;

+		if (k == BITMAP_SCANLINE_UNIT)

+		{

+		    pOut++;

+		    k = 0;

+		}

+	    }

+	    pOut += delta;

+	}

+    }

+    return(result);    

+

+}

+

+/* MIOPQSTIPDRAWABLE -- use pbits as an opaque stipple for pDraw.

+ * Drawing through the clip mask we SetSpans() the bits into a 

+ * bitmap and stipple those bits onto the destination drawable by doing a

+ * PolyFillRect over the whole drawable, 

+ * then we invert the bitmap by copying it onto itself with an alu of

+ * GXinvert, invert the foreground/background colors of the gc, and draw

+ * the background bits.

+ * Note how the clipped out bits of the bitmap are always the background

+ * color so that the stipple never causes FillRect to draw them.

+ */

+static void

+miOpqStipDrawable(DrawablePtr pDraw, GCPtr pGC, RegionPtr prgnSrc,

+		  MiBits *pbits, int srcx, int w, int h, int dstx, int dsty)

+{

+    int		oldfill, i;

+    unsigned long oldfg;

+    int		*pwidth, *pwidthFirst;

+    ChangeGCVal	gcv[6];

+    PixmapPtr	pStipple, pPixmap;

+    DDXPointRec	oldOrg;

+    GCPtr	pGCT;

+    DDXPointPtr ppt, pptFirst;

+    xRectangle rect;

+    RegionPtr	prgnSrcClip;

+

+    pPixmap = (*pDraw->pScreen->CreatePixmap)

+			   (pDraw->pScreen, w + srcx, h, 1,

+			    CREATE_PIXMAP_USAGE_SCRATCH);

+    if (!pPixmap)

+	return;

+

+    /* Put the image into a 1 bit deep pixmap */

+    pGCT = GetScratchGC(1, pDraw->pScreen);

+    if (!pGCT)

+    {

+	(*pDraw->pScreen->DestroyPixmap)(pPixmap);

+	return;

+    }

+    /* First set the whole pixmap to 0 */

+    gcv[0].val = 0;

+    ChangeGC(NullClient, pGCT, GCBackground, gcv);

+    ValidateGC((DrawablePtr)pPixmap, pGCT);

+    miClearDrawable((DrawablePtr)pPixmap, pGCT);

+    ppt = pptFirst = malloc(h * sizeof(DDXPointRec));

+    pwidth = pwidthFirst = malloc(h * sizeof(int));

+    if(!pptFirst || !pwidthFirst)

+    {

+	if (pwidthFirst) free(pwidthFirst);

+	if (pptFirst) free(pptFirst);

+	FreeScratchGC(pGCT);

+	return;

+    }

+

+    /* we need a temporary region because ChangeClip must be assumed

+       to destroy what it's sent.  note that this means we don't

+       have to free prgnSrcClip ourselves.

+    */

+    prgnSrcClip = REGION_CREATE(pGCT->pScreen, NULL, 0);

+    REGION_COPY(pGCT->pScreen, prgnSrcClip, prgnSrc);

+    REGION_TRANSLATE(pGCT->pScreen, prgnSrcClip, srcx, 0);

+    (*pGCT->funcs->ChangeClip)(pGCT, CT_REGION, prgnSrcClip, 0);

+    ValidateGC((DrawablePtr)pPixmap, pGCT);

+

+    /* Since we know pDraw is always a pixmap, we never need to think

+     * about translation here */

+    for(i = 0; i < h; i++)

+    {

+	ppt->x = 0;

+	ppt++->y = i;

+	*pwidth++ = w + srcx;

+    }

+

+    (*pGCT->ops->SetSpans)((DrawablePtr)pPixmap, pGCT, (char *)pbits,

+			   pptFirst, pwidthFirst, h, TRUE);

+    free(pwidthFirst);

+    free(pptFirst);

+

+

+    /* Save current values from the client GC */

+    oldfill = pGC->fillStyle;

+    pStipple = pGC->stipple;

+    if(pStipple)

+        pStipple->refcnt++;

+    oldOrg = pGC->patOrg;

+

+    /* Set a new stipple in the drawable */

+    gcv[0].val = FillStippled;

+    gcv[1].ptr = pPixmap;

+    gcv[2].val = dstx - srcx;

+    gcv[3].val = dsty;

+

+    ChangeGC(NullClient, pGC,

+             GCFillStyle | GCStipple | GCTileStipXOrigin | GCTileStipYOrigin,

+	     gcv);

+    ValidateGC(pDraw, pGC);

+

+    /* Fill the drawable with the stipple.  This will draw the

+     * foreground color whereever 1 bits are set, leaving everything

+     * with 0 bits untouched.  Note that the part outside the clip

+     * region is all 0s.  */

+    rect.x = dstx;

+    rect.y = dsty;

+    rect.width = w;

+    rect.height = h;

+    (*pGC->ops->PolyFillRect)(pDraw, pGC, 1, &rect);

+

+    /* Invert the tiling pixmap. This sets 0s for 1s and 1s for 0s, only

+     * within the clipping region, the part outside is still all 0s */

+    gcv[0].val = GXinvert;

+    ChangeGC(NullClient, pGCT, GCFunction, gcv);

+    ValidateGC((DrawablePtr)pPixmap, pGCT);

+    (*pGCT->ops->CopyArea)((DrawablePtr)pPixmap, (DrawablePtr)pPixmap,

+			   pGCT, 0, 0, w + srcx, h, 0, 0);

+

+    /* Swap foreground and background colors on the GC for the drawable.

+     * Now when we fill the drawable, we will fill in the "Background"

+     * values */

+    oldfg = pGC->fgPixel;

+    gcv[0].val = pGC->bgPixel;

+    gcv[1].val = oldfg;

+    gcv[2].ptr = pPixmap;

+    ChangeGC(NullClient, pGC, GCForeground | GCBackground | GCStipple, gcv);

+    ValidateGC(pDraw, pGC);

+    /* PolyFillRect might have bashed the rectangle */

+    rect.x = dstx;

+    rect.y = dsty;

+    rect.width = w;

+    rect.height = h;

+    (*pGC->ops->PolyFillRect)(pDraw, pGC, 1, &rect);

+

+    /* Now put things back */

+    if(pStipple)

+        pStipple->refcnt--;

+    gcv[0].val = oldfg;

+    gcv[1].val = pGC->fgPixel;

+    gcv[2].val = oldfill;

+    gcv[3].ptr = pStipple;

+    gcv[4].val = oldOrg.x;

+    gcv[5].val = oldOrg.y;

+    ChangeGC(NullClient, pGC,

+        GCForeground | GCBackground | GCFillStyle | GCStipple | 

+	GCTileStipXOrigin | GCTileStipYOrigin, gcv);

+

+    ValidateGC(pDraw, pGC);

+    /* put what we hope is a smaller clip region back in the scratch gc */

+    (*pGCT->funcs->ChangeClip)(pGCT, CT_NONE, NULL, 0);

+    FreeScratchGC(pGCT);

+    (*pDraw->pScreen->DestroyPixmap)(pPixmap);

+

+}

+

+/* MICOPYPLANE -- public entry for the CopyPlane request.

+ * strategy: 

+ * First build up a bitmap out of the bits requested 

+ * build a source clip

+ * Use the bitmap we've built up as a Stipple for the destination 

+ */

+RegionPtr

+miCopyPlane( DrawablePtr pSrcDrawable,

+             DrawablePtr pDstDrawable,

+             GCPtr pGC,

+             int srcx,

+             int srcy,

+             int width,

+             int height,

+             int dstx,

+             int dsty,

+             unsigned long bitPlane)

+{

+    MiBits	*ptile;

+    BoxRec 		box;

+    RegionPtr		prgnSrc, prgnExposed;

+

+    /* incorporate the source clip */

+

+    box.x1 = srcx + pSrcDrawable->x;

+    box.y1 = srcy + pSrcDrawable->y;

+    box.x2 = box.x1 + width;

+    box.y2 = box.y1 + height;

+    /* clip to visible drawable */

+    if (box.x1 < pSrcDrawable->x)

+	box.x1 = pSrcDrawable->x;

+    if (box.y1 < pSrcDrawable->y)

+	box.y1 = pSrcDrawable->y;

+    if (box.x2 > pSrcDrawable->x + (int) pSrcDrawable->width)

+	box.x2 = pSrcDrawable->x + (int) pSrcDrawable->width;

+    if (box.y2 > pSrcDrawable->y + (int) pSrcDrawable->height)

+	box.y2 = pSrcDrawable->y + (int) pSrcDrawable->height;

+    if (box.x1 > box.x2)

+	box.x2 = box.x1;

+    if (box.y1 > box.y2)

+	box.y2 = box.y1;

+    prgnSrc = REGION_CREATE(pGC->pScreen, &box, 1);

+

+    if (pSrcDrawable->type != DRAWABLE_PIXMAP) {

+	/* clip to visible drawable */

+

+	if (pGC->subWindowMode == IncludeInferiors)

+	{

+	    RegionPtr	clipList = NotClippedByChildren ((WindowPtr) pSrcDrawable);

+	    REGION_INTERSECT(pGC->pScreen, prgnSrc, prgnSrc, clipList);

+	    REGION_DESTROY(pGC->pScreen, clipList);

+	} else

+	    REGION_INTERSECT(pGC->pScreen, prgnSrc, prgnSrc,

+				       &((WindowPtr)pSrcDrawable)->clipList);

+    }

+

+    box = *REGION_EXTENTS(pGC->pScreen, prgnSrc);

+    REGION_TRANSLATE(pGC->pScreen, prgnSrc, -box.x1, -box.y1);

+

+    if ((box.x2 > box.x1) && (box.y2 > box.y1))

+    {

+	/* minimize the size of the data extracted */

+	/* note that we convert the plane mask bitPlane into a plane number */

+	box.x1 -= pSrcDrawable->x;

+	box.x2 -= pSrcDrawable->x;

+	box.y1 -= pSrcDrawable->y;

+	box.y2 -= pSrcDrawable->y;

+	ptile = miGetPlane(pSrcDrawable, ffs(bitPlane) - 1,

+			   box.x1, box.y1,

+			   box.x2 - box.x1, box.y2 - box.y1,

+			   (MiBits *) NULL);

+	if (ptile)

+	{

+	    miOpqStipDrawable(pDstDrawable, pGC, prgnSrc, ptile, 0,

+			      box.x2 - box.x1, box.y2 - box.y1,

+			      dstx + box.x1 - srcx, dsty + box.y1 - srcy);

+	    free(ptile);

+	}

+    }

+    prgnExposed = miHandleExposures(pSrcDrawable, pDstDrawable, pGC, srcx, srcy,

+		      width, height, dstx, dsty, bitPlane);

+    REGION_DESTROY(pGC->pScreen, prgnSrc);

+    return prgnExposed;

+}

+

+/* MIGETIMAGE -- public entry for the GetImage Request

+ * We're getting the image into a memory buffer. While we have to use GetSpans

+ * to read a line from the device (since we don't know what that looks like),

+ * we can just write into the destination buffer

+ *

+ * two different strategies are used, depending on whether we're getting the

+ * image in Z format or XY format

+ * Z format:

+ * Line at a time, GetSpans a line into the destination buffer, then if the

+ * planemask is not all ones, we do a SetSpans into a temporary buffer (to get

+ * bits turned off) and then another GetSpans to get stuff back (because

+ * pixmaps are opaque, and we are passed in the memory to write into).  This is

+ * pretty ugly and slow but works.  Life is hard.

+ * XY format:

+ * get the single plane specified in planemask

+ */

+void

+miGetImage( DrawablePtr pDraw, int sx, int sy, int w, int h,

+            unsigned int format, unsigned long planeMask, char *pDst)

+{

+    unsigned char	depth;

+    int			i, linelength, width, srcx, srcy;

+    DDXPointRec		pt = {0, 0};

+    PixmapPtr		pPixmap = NULL;

+    GCPtr		pGC = NULL;

+

+    depth = pDraw->depth;

+    if(format == ZPixmap)

+    {

+	if ( (((1<<depth)-1)&planeMask) != (1<<depth)-1 )

+	{

+	    ChangeGCVal gcv;

+	    xPoint pt;

+

+	    pGC = GetScratchGC(depth, pDraw->pScreen);

+	    if (!pGC)

+		return;

+            pPixmap = (*pDraw->pScreen->CreatePixmap)

+			       (pDraw->pScreen, w, 1, depth,

+			        CREATE_PIXMAP_USAGE_SCRATCH);

+	    if (!pPixmap)

+	    {

+		FreeScratchGC(pGC);

+		return;

+	    }

+ 	    /*

+ 	     * Clear the pixmap before doing anything else

+ 	     */

+ 	    ValidateGC((DrawablePtr)pPixmap, pGC);

+ 	    pt.x = pt.y = 0;

+            width = w;

+	    (*pGC->ops->FillSpans)((DrawablePtr)pPixmap, pGC, 1, &pt, &width,

+				   TRUE);

+ 

+	    /* alu is already GXCopy */

+	    gcv.val = (XID)planeMask;

+	    ChangeGC(NullClient, pGC, GCPlaneMask, &gcv);

+	    ValidateGC((DrawablePtr)pPixmap, pGC);

+	}

+

+        linelength = PixmapBytePad(w, depth);

+	srcx = sx + pDraw->x;

+	srcy = sy + pDraw->y;

+	for(i = 0; i < h; i++)

+	{

+	    pt.x = srcx;

+	    pt.y = srcy + i;

+	    width = w;

+	    (*pDraw->pScreen->GetSpans)(pDraw, w, &pt, &width, 1, pDst);

+	    if (pPixmap)

+	    {

+	       pt.x = 0;

+	       pt.y = 0;

+	       width = w;

+	       (*pGC->ops->SetSpans)((DrawablePtr)pPixmap, pGC, pDst,

+				     &pt, &width, 1, TRUE);

+	       (*pDraw->pScreen->GetSpans)((DrawablePtr)pPixmap, w, &pt,

+					   &width, 1, pDst);

+	    }

+	    pDst += linelength;

+	}

+	if (pPixmap)

+	{

+	    (*pGC->pScreen->DestroyPixmap)(pPixmap);

+	    FreeScratchGC(pGC);

+	}

+    }

+    else

+    {

+	(void) miGetPlane(pDraw, ffs(planeMask) - 1, sx, sy, w, h,

+			  (MiBits *)pDst);

+    }

+}

+

+/* MIPUTIMAGE -- public entry for the PutImage request

+ * Here we benefit from knowing the format of the bits pointed to by pImage,

+ * even if we don't know how pDraw represents them.  

+ * Three different strategies are used depending on the format 

+ * XYBitmap Format:

+ * 	we just use the Opaque Stipple helper function to cover the destination

+ * 	Note that this covers all the planes of the drawable with the 

+ *	foreground color (masked with the GC planemask) where there are 1 bits

+ *	and the background color (masked with the GC planemask) where there are

+ *	0 bits

+ * XYPixmap format:

+ *	what we're called with is a series of XYBitmaps, but we only want 

+ *	each XYPixmap to update 1 plane, instead of updating all of them.

+ * 	we set the foreground color to be all 1s and the background to all 0s

+ *	then for each plane, we set the plane mask to only effect that one

+ *	plane and recursive call ourself with the format set to XYBitmap

+ *	(This clever idea courtesy of RGD.)

+ * ZPixmap format:

+ *	This part is simple, just call SetSpans

+ */

+void

+miPutImage( DrawablePtr pDraw, GCPtr pGC, int depth,

+            int x, int y, int w, int h,

+            int leftPad, int format, char *pImage)

+{

+    DDXPointPtr		pptFirst, ppt;

+    int			*pwidthFirst, *pwidth;

+    RegionPtr		prgnSrc;

+    BoxRec		box;

+    unsigned long	oldFg, oldBg;

+    ChangeGCVal		gcv[3];

+    unsigned long	oldPlanemask;

+    unsigned long	i;

+    long		bytesPer;

+

+    if (!w || !h)

+	return;

+    switch(format)

+    {

+      case XYBitmap:

+

+	box.x1 = 0;

+	box.y1 = 0;

+	box.x2 = w;

+	box.y2 = h;

+	prgnSrc = REGION_CREATE(pGC->pScreen, &box, 1);

+

+        miOpqStipDrawable(pDraw, pGC, prgnSrc, (MiBits *) pImage,

+			  leftPad, w, h, x, y);

+	REGION_DESTROY(pGC->pScreen, prgnSrc);

+	break;

+

+      case XYPixmap:

+	depth = pGC->depth;

+	oldPlanemask = pGC->planemask;

+	oldFg = pGC->fgPixel;

+	oldBg = pGC->bgPixel;

+	gcv[0].val = (XID)~0;

+	gcv[1].val = (XID)0;

+	ChangeGC(NullClient, pGC, GCForeground | GCBackground, gcv);

+	bytesPer = (long)h * BitmapBytePad(w + leftPad);

+

+	for (i = 1 << (depth-1); i != 0; i >>= 1, pImage += bytesPer)

+	{

+	    if (i & oldPlanemask)

+	    {

+	        gcv[0].val = (XID)i;

+	        ChangeGC(NullClient, pGC, GCPlaneMask, gcv);

+	        ValidateGC(pDraw, pGC);

+	        (*pGC->ops->PutImage)(pDraw, pGC, 1, x, y, w, h, leftPad,

+			         XYBitmap, (char *)pImage);

+	    }

+	}

+	gcv[0].val = (XID)oldPlanemask;

+	gcv[1].val = (XID)oldFg;

+	gcv[2].val = (XID)oldBg;

+	ChangeGC(NullClient, pGC, GCPlaneMask | GCForeground | GCBackground, gcv);

+	ValidateGC(pDraw, pGC);

+	break;

+

+      case ZPixmap:

+        ppt = pptFirst = malloc(h * sizeof(DDXPointRec));

+        pwidth = pwidthFirst = malloc(h * sizeof(int));

+	if(!pptFirst || !pwidthFirst)

+        {

+	   if (pwidthFirst)

+               free(pwidthFirst);

+           if (pptFirst)

+               free(pptFirst);

+           return;

+        }

+	if (pGC->miTranslate)

+	{

+	    x += pDraw->x;

+	    y += pDraw->y;

+	}

+

+	for(i = 0; i < h; i++)

+	{

+	    ppt->x = x;

+	    ppt->y = y + i;

+	    ppt++;

+	    *pwidth++ = w;

+	}

+

+	(*pGC->ops->SetSpans)(pDraw, pGC, (char *)pImage, pptFirst,

+			      pwidthFirst, h, TRUE);

+	free(pwidthFirst);

+	free(pptFirst);

+	break;

+    }

+}

diff --git a/xorg-server/mi/micmap.c b/xorg-server/mi/micmap.c
index 38efb3ac9..33dc2de51 100644
--- a/xorg-server/mi/micmap.c
+++ b/xorg-server/mi/micmap.c
@@ -391,7 +391,7 @@ miClearVisualTypes(void)
 

     while ((v = miVisuals)) {

 	miVisuals = v->next;

-	xfree(v);

+	free(v);

     }

 }

 

@@ -404,7 +404,7 @@ miSetVisualTypesAndMasks(int depth, int visuals, int bitsPerRGB,
     miVisualsPtr   new, *prev, v;

     int		    count;

 

-    new = xalloc (sizeof *new);

+    new = malloc(sizeof *new);

     if (!new)

 	return FALSE;

     if (!redMask || !greenMask || !blueMask)

@@ -545,14 +545,14 @@ miInitVisuals(VisualPtr *visualp, DepthPtr *depthp, int *nvisualp,
 	ndepth++;

 	nvisual += visuals->count;

     }

-    depth = xalloc (ndepth * sizeof (DepthRec));

-    visual = xalloc (nvisual * sizeof (VisualRec));

-    preferredCVCs = xalloc(ndepth * sizeof(int));

+    depth = malloc(ndepth * sizeof (DepthRec));

+    visual = malloc(nvisual * sizeof (VisualRec));

+    preferredCVCs = malloc(ndepth * sizeof(int));

     if (!depth || !visual || !preferredCVCs)

     {

-	xfree (depth);

-	xfree (visual);

-	xfree (preferredCVCs);

+	free(depth);

+	free(visual);

+	free(preferredCVCs);

 	return FALSE;

     }

     *depthp = depth;

@@ -571,9 +571,9 @@ miInitVisuals(VisualPtr *visualp, DepthPtr *depthp, int *nvisualp,
 	vid = NULL;

 	if (nvtype)

 	{

-	    vid = xalloc (nvtype * sizeof (VisualID));

+	    vid = malloc(nvtype * sizeof (VisualID));

 	    if (!vid) {

-		xfree(preferredCVCs);

+		free(preferredCVCs);

 		return FALSE;

 	    }

 	}

@@ -615,7 +615,7 @@ miInitVisuals(VisualPtr *visualp, DepthPtr *depthp, int *nvisualp,
 	    vid++;

 	    visual++;

 	}

-	xfree (visuals);

+	free(visuals);

     }

     miVisuals = NULL;

     visual = *visualp;

@@ -671,7 +671,7 @@ miInitVisuals(VisualPtr *visualp, DepthPtr *depthp, int *nvisualp,
     }

     *rootDepthp = depth[i].depth;

     *defaultVisp = depth[i].vids[j];

-    xfree(preferredCVCs);

+    free(preferredCVCs);

 

     return TRUE;

 }

diff --git a/xorg-server/mi/micopy.c b/xorg-server/mi/micopy.c
index 3719f4646..9d5c5ce5e 100644
--- a/xorg-server/mi/micopy.c
+++ b/xorg-server/mi/micopy.c
@@ -1,354 +1,354 @@
-/*
- * Copyright © 1998 Keith Packard
- *
- * 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, and that the name of Keith Packard not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission.  Keith Packard makes no
- * representations about the suitability of this software for any purpose.  It
- * is provided "as is" without express or implied warranty.
- *
- * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include "mi.h"
-#include "scrnintstr.h"
-#include "gcstruct.h"
-#include "pixmap.h"
-#include "pixmapstr.h"
-#include "windowstr.h"
-
-void
-miCopyRegion (DrawablePtr   pSrcDrawable,
-	      DrawablePtr   pDstDrawable,
-	      GCPtr	    pGC,
-	      RegionPtr	    pDstRegion,
-	      int	    dx,
-	      int	    dy,
-	      miCopyProc    copyProc,
-	      Pixel	    bitPlane,
-	      void	    *closure)
-{
-    int		careful;
-    Bool	reverse;
-    Bool	upsidedown;
-    BoxPtr	pbox;
-    int		nbox;
-    BoxPtr	pboxNew1, pboxNew2, pboxBase, pboxNext, pboxTmp;
-    
-    pbox = REGION_RECTS(pDstRegion);
-    nbox = REGION_NUM_RECTS(pDstRegion);
-    
-    /* XXX we have to err on the side of safety when both are windows,
-     * because we don't know if IncludeInferiors is being used.
-     */
-    careful = ((pSrcDrawable == pDstDrawable) ||
-	       ((pSrcDrawable->type == DRAWABLE_WINDOW) &&
-		(pDstDrawable->type == DRAWABLE_WINDOW)));
-
-    pboxNew1 = NULL;
-    pboxNew2 = NULL;
-    if (careful && dy < 0)
-    {
-	upsidedown = TRUE;
-
-	if (nbox > 1)
-	{
-	    /* keep ordering in each band, reverse order of bands */
-	    pboxNew1 = (BoxPtr)xalloc(sizeof(BoxRec) * nbox);
-	    if(!pboxNew1)
-		return;
-	    pboxBase = pboxNext = pbox+nbox-1;
-	    while (pboxBase >= pbox)
-	    {
-		while ((pboxNext >= pbox) &&
-		       (pboxBase->y1 == pboxNext->y1))
-		    pboxNext--;
-		pboxTmp = pboxNext+1;
-		while (pboxTmp <= pboxBase)
-		{
-		    *pboxNew1++ = *pboxTmp++;
-		}
-		pboxBase = pboxNext;
-	    }
-	    pboxNew1 -= nbox;
-	    pbox = pboxNew1;
-	}
-    }
-    else
-    {
-	/* walk source top to bottom */
-	upsidedown = FALSE;
-    }
-
-    if (careful && dx < 0)
-    {
-	/* walk source right to left */
-	if (dy <= 0)
-	    reverse = TRUE;
-	else
-	    reverse = FALSE;
-
-	if (nbox > 1)
-	{
-	    /* reverse order of rects in each band */
-	    pboxNew2 = (BoxPtr)xalloc(sizeof(BoxRec) * nbox);
-	    if(!pboxNew2)
-	    {
-		if (pboxNew1)
-		    xfree(pboxNew1);
-		return;
-	    }
-	    pboxBase = pboxNext = pbox;
-	    while (pboxBase < pbox+nbox)
-	    {
-		while ((pboxNext < pbox+nbox) &&
-		       (pboxNext->y1 == pboxBase->y1))
-		    pboxNext++;
-		pboxTmp = pboxNext;
-		while (pboxTmp != pboxBase)
-		{
-		    *pboxNew2++ = *--pboxTmp;
-		}
-		pboxBase = pboxNext;
-	    }
-	    pboxNew2 -= nbox;
-	    pbox = pboxNew2;
-	}
-    }
-    else
-    {
-	/* walk source left to right */
-	reverse = FALSE;
-    }
-
-    (*copyProc) (pSrcDrawable,
-		 pDstDrawable,
-		 pGC,
-		 pbox,
-		 nbox,
-		 dx, dy,
-		 reverse, upsidedown, bitPlane, closure);
-    
-    if (pboxNew1)
-	xfree (pboxNew1);
-    if (pboxNew2)
-	xfree (pboxNew2);
-}
-
-RegionPtr
-miDoCopy (DrawablePtr	pSrcDrawable,
-	  DrawablePtr	pDstDrawable,
-	  GCPtr		pGC,
-	  int		xIn, 
-	  int		yIn,
-	  int		widthSrc, 
-	  int		heightSrc,
-	  int		xOut, 
-	  int		yOut,
-	  miCopyProc	copyProc,
-	  Pixel		bitPlane,
-	  void		*closure)
-{
-    RegionPtr	prgnSrcClip = NULL; /* may be a new region, or just a copy */
-    Bool	freeSrcClip = FALSE;
-    RegionPtr	prgnExposed = NULL;
-    RegionRec	rgnDst;
-    int		dx;
-    int		dy;
-    int		numRects;
-    int         box_x1;
-    int         box_y1;
-    int         box_x2;
-    int         box_y2;
-    Bool	fastSrc = FALSE;    /* for fast clipping with pixmap source */
-    Bool	fastDst = FALSE;    /* for fast clipping with one rect dest */
-    Bool	fastExpose = FALSE; /* for fast exposures with pixmap source */
-
-    /* Short cut for unmapped windows */
-
-    if (pDstDrawable->type == DRAWABLE_WINDOW && 
-	!((WindowPtr)pDstDrawable)->realized)
-    {
-	return NULL;
-    }
-
-    if ((pSrcDrawable != pDstDrawable) &&
-	pSrcDrawable->pScreen->SourceValidate)
-    {
-	(*pSrcDrawable->pScreen->SourceValidate) (pSrcDrawable, xIn, yIn, widthSrc, heightSrc);
-    }
-
-    /* Compute source clip region */
-    if (pSrcDrawable->type == DRAWABLE_PIXMAP)
-    {
-	if ((pSrcDrawable == pDstDrawable) && (pGC->clientClipType == CT_NONE))
-	    prgnSrcClip = miGetCompositeClip(pGC);
-	else
-	    fastSrc = TRUE;
-    }
-    else
-    {
-	if (pGC->subWindowMode == IncludeInferiors)
-	{
-	    /*
-	     * XFree86 DDX empties the border clip when the
-	     * VT is inactive, make sure the region isn't empty
-	     */
-	    if (!((WindowPtr) pSrcDrawable)->parent &&
-		REGION_NOTEMPTY (pSrcDrawable->pScreen,
-				 &((WindowPtr) pSrcDrawable)->borderClip))
-	    {
-		/*
-		 * special case bitblt from root window in
-		 * IncludeInferiors mode; just like from a pixmap
-		 */
-		fastSrc = TRUE;
-	    }
-	    else if ((pSrcDrawable == pDstDrawable) &&
-		     (pGC->clientClipType == CT_NONE))
-	    {
-		prgnSrcClip = miGetCompositeClip(pGC);
-	    }
-	    else
-	    {
-		prgnSrcClip = NotClippedByChildren((WindowPtr)pSrcDrawable);
-		freeSrcClip = TRUE;
-	    }
-	}
-	else
-	{
-	    prgnSrcClip = &((WindowPtr)pSrcDrawable)->clipList;
-	}
-    }
-
-    xIn += pSrcDrawable->x;
-    yIn += pSrcDrawable->y;
-    
-    xOut += pDstDrawable->x;
-    yOut += pDstDrawable->y;
-
-    box_x1 = xIn;
-    box_y1 = yIn;
-    box_x2 = xIn + widthSrc;
-    box_y2 = yIn + heightSrc;
-
-    dx = xIn - xOut;
-    dy = yIn - yOut;
-
-    /* Don't create a source region if we are doing a fast clip */
-    if (fastSrc)
-    {
-	RegionPtr cclip;
-    
-	fastExpose = TRUE;
-	/*
-	 * clip the source; if regions extend beyond the source size,
- 	 * make sure exposure events get sent
-	 */
-	if (box_x1 < pSrcDrawable->x)
-	{
-	    box_x1 = pSrcDrawable->x;
-	    fastExpose = FALSE;
-	}
-	if (box_y1 < pSrcDrawable->y)
-	{
-	    box_y1 = pSrcDrawable->y;
-	    fastExpose = FALSE;
-	}
-	if (box_x2 > pSrcDrawable->x + (int) pSrcDrawable->width)
-	{
-	    box_x2 = pSrcDrawable->x + (int) pSrcDrawable->width;
-	    fastExpose = FALSE;
-	}
-	if (box_y2 > pSrcDrawable->y + (int) pSrcDrawable->height)
-	{
-	    box_y2 = pSrcDrawable->y + (int) pSrcDrawable->height;
-	    fastExpose = FALSE;
-	}
-	
-	/* Translate and clip the dst to the destination composite clip */
-        box_x1 -= dx;
-        box_x2 -= dx;
-        box_y1 -= dy;
-        box_y2 -= dy;
-
-	/* If the destination composite clip is one rectangle we can
-	   do the clip directly.  Otherwise we have to create a full
-	   blown region and call intersect */
-
-	cclip = miGetCompositeClip(pGC);
-        if (REGION_NUM_RECTS(cclip) == 1)
-        {
-	    BoxPtr pBox = REGION_RECTS(cclip);
-
-	    if (box_x1 < pBox->x1) box_x1 = pBox->x1;
-	    if (box_x2 > pBox->x2) box_x2 = pBox->x2;
-	    if (box_y1 < pBox->y1) box_y1 = pBox->y1;
-	    if (box_y2 > pBox->y2) box_y2 = pBox->y2;
-	    fastDst = TRUE;
-	}
-    }
-    
-    /* Check to see if the region is empty */
-    if (box_x1 >= box_x2 || box_y1 >= box_y2)
-    {
-	REGION_NULL(pGC->pScreen, &rgnDst);
-    }
-    else
-    {
-        BoxRec	box;
-	box.x1 = box_x1;
-	box.y1 = box_y1;
-	box.x2 = box_x2;
-	box.y2 = box_y2;
-	REGION_INIT(pGC->pScreen, &rgnDst, &box, 1);
-    }
-    
-    /* Clip against complex source if needed */
-    if (!fastSrc)
-    {
-	REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst, prgnSrcClip);
-	REGION_TRANSLATE(pGC->pScreen, &rgnDst, -dx, -dy);
-    }
-
-    /* Clip against complex dest if needed */
-    if (!fastDst)
-    {
-	REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst,
-			 miGetCompositeClip(pGC));
-    }
-
-    /* Do bit blitting */
-    numRects = REGION_NUM_RECTS(&rgnDst);
-    if (numRects && widthSrc && heightSrc)
-	miCopyRegion (pSrcDrawable, pDstDrawable, pGC,
-		      &rgnDst, dx, dy, copyProc, bitPlane, closure);
-
-    /* Pixmap sources generate a NoExposed (we return NULL to do this) */
-    if (!fastExpose && pGC->fExpose)
-	prgnExposed = miHandleExposures(pSrcDrawable, pDstDrawable, pGC,
-					xIn - pSrcDrawable->x,
-					yIn - pSrcDrawable->y,
-					widthSrc, heightSrc,
-					xOut - pDstDrawable->x,
-					yOut - pDstDrawable->y,
-					(unsigned long) bitPlane);
-    REGION_UNINIT(pGC->pScreen, &rgnDst);
-    if (freeSrcClip)
-	REGION_DESTROY(pGC->pScreen, prgnSrcClip);
-    return prgnExposed;
-}
+/*

+ * Copyright © 1998 Keith Packard

+ *

+ * 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, and that the name of Keith Packard not be used in

+ * advertising or publicity pertaining to distribution of the software without

+ * specific, written prior permission.  Keith Packard makes no

+ * representations about the suitability of this software for any purpose.  It

+ * is provided "as is" without express or implied warranty.

+ *

+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR

+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

+ * PERFORMANCE OF THIS SOFTWARE.

+ */

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include "mi.h"

+#include "scrnintstr.h"

+#include "gcstruct.h"

+#include "pixmap.h"

+#include "pixmapstr.h"

+#include "windowstr.h"

+

+void

+miCopyRegion (DrawablePtr   pSrcDrawable,

+	      DrawablePtr   pDstDrawable,

+	      GCPtr	    pGC,

+	      RegionPtr	    pDstRegion,

+	      int	    dx,

+	      int	    dy,

+	      miCopyProc    copyProc,

+	      Pixel	    bitPlane,

+	      void	    *closure)

+{

+    int		careful;

+    Bool	reverse;

+    Bool	upsidedown;

+    BoxPtr	pbox;

+    int		nbox;

+    BoxPtr	pboxNew1, pboxNew2, pboxBase, pboxNext, pboxTmp;

+    

+    pbox = REGION_RECTS(pDstRegion);

+    nbox = REGION_NUM_RECTS(pDstRegion);

+    

+    /* XXX we have to err on the side of safety when both are windows,

+     * because we don't know if IncludeInferiors is being used.

+     */

+    careful = ((pSrcDrawable == pDstDrawable) ||

+	       ((pSrcDrawable->type == DRAWABLE_WINDOW) &&

+		(pDstDrawable->type == DRAWABLE_WINDOW)));

+

+    pboxNew1 = NULL;

+    pboxNew2 = NULL;

+    if (careful && dy < 0)

+    {

+	upsidedown = TRUE;

+

+	if (nbox > 1)

+	{

+	    /* keep ordering in each band, reverse order of bands */

+	    pboxNew1 = (BoxPtr)malloc(sizeof(BoxRec) * nbox);

+	    if(!pboxNew1)

+		return;

+	    pboxBase = pboxNext = pbox+nbox-1;

+	    while (pboxBase >= pbox)

+	    {

+		while ((pboxNext >= pbox) &&

+		       (pboxBase->y1 == pboxNext->y1))

+		    pboxNext--;

+		pboxTmp = pboxNext+1;

+		while (pboxTmp <= pboxBase)

+		{

+		    *pboxNew1++ = *pboxTmp++;

+		}

+		pboxBase = pboxNext;

+	    }

+	    pboxNew1 -= nbox;

+	    pbox = pboxNew1;

+	}

+    }

+    else

+    {

+	/* walk source top to bottom */

+	upsidedown = FALSE;

+    }

+

+    if (careful && dx < 0)

+    {

+	/* walk source right to left */

+	if (dy <= 0)

+	    reverse = TRUE;

+	else

+	    reverse = FALSE;

+

+	if (nbox > 1)

+	{

+	    /* reverse order of rects in each band */

+	    pboxNew2 = (BoxPtr)malloc(sizeof(BoxRec) * nbox);

+	    if(!pboxNew2)

+	    {

+		if (pboxNew1)

+		    free(pboxNew1);

+		return;

+	    }

+	    pboxBase = pboxNext = pbox;

+	    while (pboxBase < pbox+nbox)

+	    {

+		while ((pboxNext < pbox+nbox) &&

+		       (pboxNext->y1 == pboxBase->y1))

+		    pboxNext++;

+		pboxTmp = pboxNext;

+		while (pboxTmp != pboxBase)

+		{

+		    *pboxNew2++ = *--pboxTmp;

+		}

+		pboxBase = pboxNext;

+	    }

+	    pboxNew2 -= nbox;

+	    pbox = pboxNew2;

+	}

+    }

+    else

+    {

+	/* walk source left to right */

+	reverse = FALSE;

+    }

+

+    (*copyProc) (pSrcDrawable,

+		 pDstDrawable,

+		 pGC,

+		 pbox,

+		 nbox,

+		 dx, dy,

+		 reverse, upsidedown, bitPlane, closure);

+    

+    if (pboxNew1)

+	free(pboxNew1);

+    if (pboxNew2)

+	free(pboxNew2);

+}

+

+RegionPtr

+miDoCopy (DrawablePtr	pSrcDrawable,

+	  DrawablePtr	pDstDrawable,

+	  GCPtr		pGC,

+	  int		xIn, 

+	  int		yIn,

+	  int		widthSrc, 

+	  int		heightSrc,

+	  int		xOut, 

+	  int		yOut,

+	  miCopyProc	copyProc,

+	  Pixel		bitPlane,

+	  void		*closure)

+{

+    RegionPtr	prgnSrcClip = NULL; /* may be a new region, or just a copy */

+    Bool	freeSrcClip = FALSE;

+    RegionPtr	prgnExposed = NULL;

+    RegionRec	rgnDst;

+    int		dx;

+    int		dy;

+    int		numRects;

+    int         box_x1;

+    int         box_y1;

+    int         box_x2;

+    int         box_y2;

+    Bool	fastSrc = FALSE;    /* for fast clipping with pixmap source */

+    Bool	fastDst = FALSE;    /* for fast clipping with one rect dest */

+    Bool	fastExpose = FALSE; /* for fast exposures with pixmap source */

+

+    /* Short cut for unmapped windows */

+

+    if (pDstDrawable->type == DRAWABLE_WINDOW && 

+	!((WindowPtr)pDstDrawable)->realized)

+    {

+	return NULL;

+    }

+

+    if ((pSrcDrawable != pDstDrawable) &&

+	pSrcDrawable->pScreen->SourceValidate)

+    {

+	(*pSrcDrawable->pScreen->SourceValidate) (pSrcDrawable, xIn, yIn, widthSrc, heightSrc);

+    }

+

+    /* Compute source clip region */

+    if (pSrcDrawable->type == DRAWABLE_PIXMAP)

+    {

+	if ((pSrcDrawable == pDstDrawable) && (pGC->clientClipType == CT_NONE))

+	    prgnSrcClip = miGetCompositeClip(pGC);

+	else

+	    fastSrc = TRUE;

+    }

+    else

+    {

+	if (pGC->subWindowMode == IncludeInferiors)

+	{

+	    /*

+	     * XFree86 DDX empties the border clip when the

+	     * VT is inactive, make sure the region isn't empty

+	     */

+	    if (!((WindowPtr) pSrcDrawable)->parent &&

+		REGION_NOTEMPTY (pSrcDrawable->pScreen,

+				 &((WindowPtr) pSrcDrawable)->borderClip))

+	    {

+		/*

+		 * special case bitblt from root window in

+		 * IncludeInferiors mode; just like from a pixmap

+		 */

+		fastSrc = TRUE;

+	    }

+	    else if ((pSrcDrawable == pDstDrawable) &&

+		     (pGC->clientClipType == CT_NONE))

+	    {

+		prgnSrcClip = miGetCompositeClip(pGC);

+	    }

+	    else

+	    {

+		prgnSrcClip = NotClippedByChildren((WindowPtr)pSrcDrawable);

+		freeSrcClip = TRUE;

+	    }

+	}

+	else

+	{

+	    prgnSrcClip = &((WindowPtr)pSrcDrawable)->clipList;

+	}

+    }

+

+    xIn += pSrcDrawable->x;

+    yIn += pSrcDrawable->y;

+    

+    xOut += pDstDrawable->x;

+    yOut += pDstDrawable->y;

+

+    box_x1 = xIn;

+    box_y1 = yIn;

+    box_x2 = xIn + widthSrc;

+    box_y2 = yIn + heightSrc;

+

+    dx = xIn - xOut;

+    dy = yIn - yOut;

+

+    /* Don't create a source region if we are doing a fast clip */

+    if (fastSrc)

+    {

+	RegionPtr cclip;

+    

+	fastExpose = TRUE;

+	/*

+	 * clip the source; if regions extend beyond the source size,

+ 	 * make sure exposure events get sent

+	 */

+	if (box_x1 < pSrcDrawable->x)

+	{

+	    box_x1 = pSrcDrawable->x;

+	    fastExpose = FALSE;

+	}

+	if (box_y1 < pSrcDrawable->y)

+	{

+	    box_y1 = pSrcDrawable->y;

+	    fastExpose = FALSE;

+	}

+	if (box_x2 > pSrcDrawable->x + (int) pSrcDrawable->width)

+	{

+	    box_x2 = pSrcDrawable->x + (int) pSrcDrawable->width;

+	    fastExpose = FALSE;

+	}

+	if (box_y2 > pSrcDrawable->y + (int) pSrcDrawable->height)

+	{

+	    box_y2 = pSrcDrawable->y + (int) pSrcDrawable->height;

+	    fastExpose = FALSE;

+	}

+	

+	/* Translate and clip the dst to the destination composite clip */

+        box_x1 -= dx;

+        box_x2 -= dx;

+        box_y1 -= dy;

+        box_y2 -= dy;

+

+	/* If the destination composite clip is one rectangle we can

+	   do the clip directly.  Otherwise we have to create a full

+	   blown region and call intersect */

+

+	cclip = miGetCompositeClip(pGC);

+        if (REGION_NUM_RECTS(cclip) == 1)

+        {

+	    BoxPtr pBox = REGION_RECTS(cclip);

+

+	    if (box_x1 < pBox->x1) box_x1 = pBox->x1;

+	    if (box_x2 > pBox->x2) box_x2 = pBox->x2;

+	    if (box_y1 < pBox->y1) box_y1 = pBox->y1;

+	    if (box_y2 > pBox->y2) box_y2 = pBox->y2;

+	    fastDst = TRUE;

+	}

+    }

+    

+    /* Check to see if the region is empty */

+    if (box_x1 >= box_x2 || box_y1 >= box_y2)

+    {

+	REGION_NULL(pGC->pScreen, &rgnDst);

+    }

+    else

+    {

+        BoxRec	box;

+	box.x1 = box_x1;

+	box.y1 = box_y1;

+	box.x2 = box_x2;

+	box.y2 = box_y2;

+	REGION_INIT(pGC->pScreen, &rgnDst, &box, 1);

+    }

+    

+    /* Clip against complex source if needed */

+    if (!fastSrc)

+    {

+	REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst, prgnSrcClip);

+	REGION_TRANSLATE(pGC->pScreen, &rgnDst, -dx, -dy);

+    }

+

+    /* Clip against complex dest if needed */

+    if (!fastDst)

+    {

+	REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst,

+			 miGetCompositeClip(pGC));

+    }

+

+    /* Do bit blitting */

+    numRects = REGION_NUM_RECTS(&rgnDst);

+    if (numRects && widthSrc && heightSrc)

+	miCopyRegion (pSrcDrawable, pDstDrawable, pGC,

+		      &rgnDst, dx, dy, copyProc, bitPlane, closure);

+

+    /* Pixmap sources generate a NoExposed (we return NULL to do this) */

+    if (!fastExpose && pGC->fExpose)

+	prgnExposed = miHandleExposures(pSrcDrawable, pDstDrawable, pGC,

+					xIn - pSrcDrawable->x,

+					yIn - pSrcDrawable->y,

+					widthSrc, heightSrc,

+					xOut - pDstDrawable->x,

+					yOut - pDstDrawable->y,

+					(unsigned long) bitPlane);

+    REGION_UNINIT(pGC->pScreen, &rgnDst);

+    if (freeSrcClip)

+	REGION_DESTROY(pGC->pScreen, prgnSrcClip);

+    return prgnExposed;

+}

diff --git a/xorg-server/mi/midispcur.c b/xorg-server/mi/midispcur.c
index 904163091..d4b7f132b 100644
--- a/xorg-server/mi/midispcur.c
+++ b/xorg-server/mi/midispcur.c
@@ -1,874 +1,874 @@
-/*
- * 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 int miDCScreenKeyIndex;
-static DevPrivateKey miDCScreenKey = &miDCScreenKeyIndex;
-
-static Bool	miDCCloseScreen(int index, ScreenPtr pScreen);
-
-/* per device per-screen private data */
-static int miDCSpriteKeyIndex[MAXSCREENS];
-static DevPrivateKey miDCSpriteKey = miDCSpriteKeyIndex;
-
-typedef struct {
-    GCPtr	    pSourceGC, pMaskGC;
-    GCPtr	    pSaveGC, pRestoreGC;
-    GCPtr	    pMoveGC;
-    GCPtr	    pPixSourceGC, pPixMaskGC;
-    PixmapPtr	    pSave, pTemp;
-#ifdef ARGB_CURSOR
-    PicturePtr	    pRootPicture;
-    PicturePtr	    pTempPicture;
-#endif
-} miDCBufferRec, *miDCBufferPtr;
-
-#define MIDCBUFFER(dev, screen) \
- ((DevHasCursor(dev)) ? \
-  (miDCBufferPtr)dixLookupPrivate(&dev->devPrivates, miDCSpriteKey + (screen)->myNum) : \
-  (miDCBufferPtr)dixLookupPrivate(&dev->u.master->devPrivates, miDCSpriteKey + (screen)->myNum))
-
-/* 
- * The core pointer buffer will point to the index of the virtual core pointer
- * in the pCursorBuffers array. 
- */
-typedef struct {
-    CloseScreenProcPtr CloseScreen;
-} miDCScreenRec, *miDCScreenPtr;
-
-/* per-cursor per-screen private data */
-typedef struct {
-    PixmapPtr		sourceBits;	    /* source bits */
-    PixmapPtr		maskBits;	    /* mask bits */
-#ifdef ARGB_CURSOR
-    PicturePtr		pPicture;
-#endif
-} miDCCursorRec, *miDCCursorPtr;
-
-/*
- * sprite/cursor method table
- */
-
-static Bool	miDCRealizeCursor(ScreenPtr pScreen, CursorPtr pCursor);
-static Bool	miDCUnrealizeCursor(ScreenPtr pScreen, CursorPtr pCursor);
-static Bool	miDCPutUpCursor(DeviceIntPtr pDev, ScreenPtr pScreen, 
-                                CursorPtr pCursor, int x, int y, 
-                                unsigned long source, unsigned long mask);
-static Bool	miDCSaveUnderCursor(DeviceIntPtr pDev, ScreenPtr pScreen, 
-                                    int x, int y,
-				    int w, int h);
-static Bool	miDCRestoreUnderCursor(DeviceIntPtr pDev, ScreenPtr pScreen, 
-                                       int x, int y,
-				       int w, int h);
-static Bool	miDCMoveCursor(DeviceIntPtr pDev, ScreenPtr pScreen, 
-                               CursorPtr pCursor, int x, int y, 
-                               int w, int h, int dx, int dy,
-			       unsigned long source, unsigned long mask);
-static Bool	miDCChangeSave(DeviceIntPtr pDev, ScreenPtr pScreen, 
-                               int x, int y, int w, int h,	
-                               int dx, int dy);
-
-static Bool     miDCDeviceInitialize(DeviceIntPtr pDev, ScreenPtr pScreen);
-static void     miDCDeviceCleanup(DeviceIntPtr pDev, ScreenPtr pScreen);
-
-static miSpriteCursorFuncRec miDCFuncs = {
-    miDCRealizeCursor,
-    miDCUnrealizeCursor,
-    miDCPutUpCursor,
-    miDCSaveUnderCursor,
-    miDCRestoreUnderCursor,
-    miDCMoveCursor,
-    miDCChangeSave,
-    miDCDeviceInitialize,
-    miDCDeviceCleanup
-};
-
-Bool
-miDCInitialize (ScreenPtr pScreen, miPointerScreenFuncPtr screenFuncs)
-{
-    miDCScreenPtr   pScreenPriv;
-
-    pScreenPriv = xalloc (sizeof (miDCScreenRec));
-    if (!pScreenPriv)
-	return FALSE;
-
-
-    pScreenPriv->CloseScreen = pScreen->CloseScreen;
-    pScreen->CloseScreen = miDCCloseScreen;
-
-    dixSetPrivate(&pScreen->devPrivates, miDCScreenKey, pScreenPriv);
-
-    if (!miSpriteInitialize (pScreen, &miDCFuncs, screenFuncs))
-    {
-	xfree ((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;
-    xfree ((pointer) pScreenPriv);
-    return (*pScreen->CloseScreen) (index, pScreen);
-}
-
-static Bool
-miDCRealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)
-{
-    if (pCursor->bits->refcnt <= 1)
-	dixSetPrivate(&pCursor->bits->devPrivates, CursorScreenKey(pScreen), NULL);
-    return TRUE;
-}
-
-#ifdef ARGB_CURSOR
-
-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;
-    XID		    gcvals[3];
-
-    pPriv = xalloc (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)
-	{
-	    xfree ((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)
-	{
-	    xfree ((pointer) pPriv);
-	    return NULL;
-	}
-	pGC = GetScratchGC (32, pScreen);
-	if (!pGC)
-	{
-	    (*pScreen->DestroyPixmap) (pPixmap);
-	    xfree ((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)
-	{
-	    xfree ((pointer) pPriv);
-	    return NULL;
-	}
-	dixSetPrivate(&pCursor->bits->devPrivates, CursorScreenKey(pScreen), pPriv);
-	return pPriv;
-    }
-    pPriv->pPicture = 0;
-#endif
-    pPriv->sourceBits = (*pScreen->CreatePixmap) (pScreen, pCursor->bits->width, pCursor->bits->height, 1, 0);
-    if (!pPriv->sourceBits)
-    {
-	xfree ((pointer) pPriv);
-	return NULL;
-    }
-    pPriv->maskBits =  (*pScreen->CreatePixmap) (pScreen, pCursor->bits->width, pCursor->bits->height, 1, 0);
-    if (!pPriv->maskBits)
-    {
-	(*pScreen->DestroyPixmap) (pPriv->sourceBits);
-	xfree ((pointer) pPriv);
-	return NULL;
-    }
-    dixSetPrivate(&pCursor->bits->devPrivates, CursorScreenKey(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[0] = GXand;
-    ChangeGC (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[0] = GXcopy;
-    ChangeGC (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[0] = GXandInverted;
-    ChangeGC (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;
-}
-
-static Bool
-miDCUnrealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)
-{
-    miDCCursorPtr   pPriv;
-
-    pPriv = (miDCCursorPtr)dixLookupPrivate(&pCursor->bits->devPrivates,
-					    CursorScreenKey(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
-	xfree ((pointer) pPriv);
-	dixSetPrivate(&pCursor->bits->devPrivates, CursorScreenKey(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)
-{
-    XID	    gcvals[1];
-    int     x, y;
-
-    if (sourceGC->fgPixel != source)
-    {
-	gcvals[0] = source;
-	DoChangeGC (sourceGC, GCForeground, gcvals, 0);
-    }
-    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)
-    {
-	gcvals[0] = mask;
-	DoChangeGC (maskGC, GCForeground, gcvals, 0);
-    }
-    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;
-}
-
-
-static Bool
-miDCPutUpCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
-                 int x, int y, unsigned long source, unsigned long mask)
-{
-    miDCScreenPtr   pScreenPriv;
-    miDCCursorPtr   pPriv;
-    miDCBufferPtr   pBuffer;
-    WindowPtr	    pWin;
-
-    pPriv = (miDCCursorPtr)dixLookupPrivate(&pCursor->bits->devPrivates,
-					    CursorScreenKey(pScreen));
-    if (!pPriv)
-    {
-	pPriv = miDCRealize(pScreen, pCursor);
-	if (!pPriv)
-	    return FALSE;
-    }
-    pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
-						  miDCScreenKey);
-    pWin = WindowTable[pScreen->myNum];
-    pBuffer = MIDCBUFFER(pDev, pScreen);
-
-#ifdef ARGB_CURSOR
-    if (pPriv->pPicture)
-    {
-	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;
-}
-
-static Bool
-miDCSaveUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
-                     int x, int y, int w, int h)
-{
-    miDCScreenPtr   pScreenPriv;
-    miDCBufferPtr   pBuffer;
-    PixmapPtr	    pSave;
-    WindowPtr	    pWin;
-    GCPtr	    pGC;
-
-    pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
-						  miDCScreenKey);
-    pBuffer = MIDCBUFFER(pDev, pScreen);
-
-    pSave = pBuffer->pSave;
-    pWin = WindowTable[pScreen->myNum];
-    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;
-}
-
-static Bool
-miDCRestoreUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
-                        int x, int y, int w, int h)
-{
-    miDCScreenPtr   pScreenPriv;
-    miDCBufferPtr   pBuffer;
-    PixmapPtr	    pSave;
-    WindowPtr	    pWin;
-    GCPtr	    pGC;
-
-    pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
-						  miDCScreenKey);
-    pBuffer = MIDCBUFFER(pDev, pScreen);
-    pSave = pBuffer->pSave;
-
-    pWin = WindowTable[pScreen->myNum];
-    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;
-}
-
-static Bool
-miDCChangeSave (DeviceIntPtr pDev, ScreenPtr pScreen,
-                int x, int y, int w, int h, int dx, int dy)
-{
-    miDCScreenPtr   pScreenPriv;
-    miDCBufferPtr   pBuffer;
-    PixmapPtr	    pSave;
-    WindowPtr	    pWin;
-    GCPtr	    pGC;
-    int		    sourcex, sourcey, destx, desty, copyw, copyh;
-
-    pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
-						  miDCScreenKey);
-    pBuffer = MIDCBUFFER(pDev, pScreen);
-
-    pSave = pBuffer->pSave;
-    pWin = WindowTable[pScreen->myNum];
-    /*
-     * restore the bits which are about to get trashed
-     */
-    if (!pSave)
-	return FALSE;
-
-    pGC = pBuffer->pRestoreGC;
-    if (pWin->drawable.serialNumber != pGC->serialNumber)
-	ValidateGC ((DrawablePtr) pWin, pGC);
-    /*
-     * copy the old bits to the screen.
-     */
-    if (dy > 0)
-    {
-	(*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,
-			       0, h - dy, w, dy, x + dx, y + h);
-    }
-    else if (dy < 0)
-    {
-	(*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,
-			       0, 0, w, -dy, x + dx, y + dy);
-    }
-    if (dy >= 0)
-    {
-	desty = y + dy;
-	sourcey = 0;
-	copyh = h - dy;
-    }
-    else
-    {
-	desty = y;
-	sourcey = - dy;
-	copyh = h + dy;
-    }
-    if (dx > 0)
-    {
-	(*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,
-			       w - dx, sourcey, dx, copyh, x + w, desty);
-    }
-    else if (dx < 0)
-    {
-	(*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,
-			       0, sourcey, -dx, copyh, x + dx, desty);
-    }
-
-    pGC = pBuffer->pSaveGC;
-    if (pSave->drawable.serialNumber != pGC->serialNumber)
-	ValidateGC ((DrawablePtr) pSave, pGC);
-    /*
-     * move the bits that are still valid within the pixmap
-     */
-    if (dx >= 0)
-    {
-	sourcex = 0;
-	destx = dx;
-	copyw = w - dx;
-    }
-    else
-    {
-	destx = 0;
-	sourcex = - dx;
-	copyw = w + dx;
-    }
-    if (dy >= 0)
-    {
-	sourcey = 0;
-	desty = dy;
-	copyh = h - dy;
-    }
-    else
-    {
-	desty = 0;
-	sourcey = -dy;
-	copyh = h + dy;
-    }
-    (*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pSave, pGC,
-			   sourcex, sourcey, copyw, copyh, destx, desty);
-    /*
-     * copy the new bits from the screen into the remaining areas of the
-     * pixmap
-     */
-    if (dy > 0)
-    {
-	(*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC,
-			       x, y, w, dy, 0, 0);
-    }
-    else if (dy < 0)
-    {
-	(*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC,
-			       x, y + h + dy, w, -dy, 0, h + dy);
-    }
-    if (dy >= 0)
-    {
-	desty = dy;
-	sourcey = y + dy;
-	copyh = h - dy;
-    }
-    else
-    {
-	desty = 0;
-	sourcey = y;
-	copyh = h + dy;
-    }
-    if (dx > 0)
-    {
-	(*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC,
-			       x, sourcey, dx, copyh, 0, desty);
-    }
-    else if (dx < 0)
-    {
-	(*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC,
-			       x + w + dx, sourcey, -dx, copyh, w + dx, desty);
-    }
-    return TRUE;
-}
-
-static Bool
-miDCMoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
-                int x, int y, int w, int h, int dx, int dy,
-                unsigned long source, unsigned long mask)
-{
-    miDCCursorPtr   pPriv;
-    miDCScreenPtr   pScreenPriv;
-    miDCBufferPtr   pBuffer;
-    int		    status;
-    WindowPtr	    pWin;
-    GCPtr	    pGC;
-    XID		    gcval = FALSE;
-    PixmapPtr	    pTemp;
-
-    pPriv = (miDCCursorPtr)dixLookupPrivate(&pCursor->bits->devPrivates,
-					    CursorScreenKey(pScreen));
-    if (!pPriv)
-    {
-	pPriv = miDCRealize(pScreen, pCursor);
-	if (!pPriv)
-	    return FALSE;
-    }
-    pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
-						  miDCScreenKey);
-    pWin = WindowTable[pScreen->myNum];
-    pBuffer = MIDCBUFFER(pDev, pScreen);
-
-    pTemp = pBuffer->pTemp;
-    if (!pTemp ||
-	pTemp->drawable.width != pBuffer->pSave->drawable.width ||
-	pTemp->drawable.height != pBuffer->pSave->drawable.height)
-    {
-	if (pTemp)
-	    (*pScreen->DestroyPixmap) (pTemp);
-#ifdef ARGB_CURSOR
-	if (pBuffer->pTempPicture)
-	{
-	    FreePicture (pBuffer->pTempPicture, 0);
-	    pBuffer->pTempPicture = 0;
-	}
-#endif
-	pBuffer->pTemp = pTemp = (*pScreen->CreatePixmap)
-	    (pScreen, w, h, pBuffer->pSave->drawable.depth, 0);
-	if (!pTemp)
-	    return FALSE;
-    }
-    if (!pBuffer->pMoveGC)
-    {
-	pBuffer->pMoveGC = CreateGC ((DrawablePtr)pTemp,
-	    GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
-	if (!pBuffer->pMoveGC)
-	    return FALSE;
-    }
-    /*
-     * copy the saved area to a temporary pixmap
-     */
-    pGC = pBuffer->pMoveGC;
-    if (pGC->serialNumber != pTemp->drawable.serialNumber)
-	ValidateGC ((DrawablePtr) pTemp, pGC);
-    (*pGC->ops->CopyArea)((DrawablePtr)pBuffer->pSave,
-			  (DrawablePtr)pTemp, pGC, 0, 0, w, h, 0, 0);
-    
-    /*
-     * draw the cursor in the temporary pixmap
-     */
-#ifdef ARGB_CURSOR
-    if (pPriv->pPicture)
-    {
-	if (!pBuffer->pTempPicture)
-            miDCMakePicture(&pBuffer->pTempPicture, &pTemp->drawable, pWin);
-
-	CompositePicture (PictOpOver,
-			  pPriv->pPicture,
-			  NULL,
-			  pBuffer->pTempPicture,
-			  0, 0, 0, 0, 
-			  dx, dy, 
-			  pCursor->bits->width,
-			  pCursor->bits->height);
-    }
-    else
-#endif
-    {
-	miDCPutBits ((DrawablePtr)pTemp, pPriv,
-		     pBuffer->pPixSourceGC, pBuffer->pPixMaskGC,
-		     dx, dy, pCursor->bits->width, pCursor->bits->height,
-		     source, mask);
-    }
-
-    pGC = pBuffer->pRestoreGC;
-    if (pWin->drawable.serialNumber != pGC->serialNumber)
-	ValidateGC ((DrawablePtr) pWin, pGC);
-
-    (*pGC->ops->CopyArea) ((DrawablePtr) pTemp, (DrawablePtr) pWin,
-			    pGC,
-			    0, 0, w, h, x, y);
-    return TRUE;
-}
-
-static Bool
-miDCDeviceInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)
-{
-    miDCBufferPtr   pBuffer;
-    WindowPtr       pWin;
-    XID             gcval = FALSE;
-    int             status;
-    int             i;
-
-    if (!DevHasCursor(pDev))
-        return TRUE;
-
-    for (i = 0; i < screenInfo.numScreens; i++)
-    {
-        pScreen = screenInfo.screens[i];
-
-        pBuffer = xalloc(sizeof(miDCBufferRec));
-        if (!pBuffer)
-            goto failure;
-
-        dixSetPrivate(&pDev->devPrivates, miDCSpriteKey + pScreen->myNum, pBuffer);
-        pWin = WindowTable[pScreen->myNum];
-
-        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;
-
-        pBuffer->pMoveGC = CreateGC ((DrawablePtr)pWin,
-            GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
-        if (!pBuffer->pMoveGC)
-            goto failure;
-
-        pBuffer->pPixSourceGC = CreateGC ((DrawablePtr)pWin,
-            GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
-        if (!pBuffer->pPixSourceGC)
-            goto failure;
-
-        pBuffer->pPixMaskGC = CreateGC ((DrawablePtr)pWin,
-            GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
-        if (!pBuffer->pPixMaskGC)
-            goto failure;
-
-#ifdef ARGB_CURSOR
-        miDCMakePicture(&pBuffer->pRootPicture, &pWin->drawable, pWin);
-        if (!pBuffer->pRootPicture)
-            goto failure;
-
-        pBuffer->pTempPicture = NULL;
-#endif
-
-        // these get (re)allocated lazily depending on the cursor size
-        pBuffer->pSave = pBuffer->pTemp = NULL;
-    }
-
-    return TRUE;
-
-failure:
-
-    miDCDeviceCleanup(pDev, pScreen);
-
-    return FALSE;
-}
-
-static 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 = MIDCBUFFER(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);
-                if (pBuffer->pMoveGC) FreeGC(pBuffer->pMoveGC, (GContext) 0);
-                if (pBuffer->pPixSourceGC) FreeGC(pBuffer->pPixSourceGC, (GContext) 0);
-                if (pBuffer->pPixMaskGC) FreeGC(pBuffer->pPixMaskGC, (GContext) 0);
-
-                if (pBuffer->pSave) (*pScreen->DestroyPixmap)(pBuffer->pSave);
-                if (pBuffer->pTemp) (*pScreen->DestroyPixmap)(pBuffer->pTemp);
-
-                xfree(pBuffer);
-                dixSetPrivate(&pDev->devPrivates, miDCSpriteKey + pScreen->myNum, 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 int miDCScreenKeyIndex;

+static DevPrivateKey miDCScreenKey = &miDCScreenKeyIndex;

+

+static Bool	miDCCloseScreen(int index, ScreenPtr pScreen);

+

+/* per device per-screen private data */

+static int miDCSpriteKeyIndex[MAXSCREENS];

+static DevPrivateKey miDCSpriteKey = miDCSpriteKeyIndex;

+

+typedef struct {

+    GCPtr	    pSourceGC, pMaskGC;

+    GCPtr	    pSaveGC, pRestoreGC;

+    GCPtr	    pMoveGC;

+    GCPtr	    pPixSourceGC, pPixMaskGC;

+    PixmapPtr	    pSave, pTemp;

+#ifdef ARGB_CURSOR

+    PicturePtr	    pRootPicture;

+    PicturePtr	    pTempPicture;

+#endif

+} miDCBufferRec, *miDCBufferPtr;

+

+#define MIDCBUFFER(dev, screen) \

+ ((DevHasCursor(dev)) ? \

+  (miDCBufferPtr)dixLookupPrivate(&dev->devPrivates, miDCSpriteKey + (screen)->myNum) : \

+  (miDCBufferPtr)dixLookupPrivate(&dev->u.master->devPrivates, miDCSpriteKey + (screen)->myNum))

+

+/* 

+ * The core pointer buffer will point to the index of the virtual core pointer

+ * in the pCursorBuffers array. 

+ */

+typedef struct {

+    CloseScreenProcPtr CloseScreen;

+} miDCScreenRec, *miDCScreenPtr;

+

+/* per-cursor per-screen private data */

+typedef struct {

+    PixmapPtr		sourceBits;	    /* source bits */

+    PixmapPtr		maskBits;	    /* mask bits */

+#ifdef ARGB_CURSOR

+    PicturePtr		pPicture;

+#endif

+} miDCCursorRec, *miDCCursorPtr;

+

+/*

+ * sprite/cursor method table

+ */

+

+static Bool	miDCRealizeCursor(ScreenPtr pScreen, CursorPtr pCursor);

+static Bool	miDCUnrealizeCursor(ScreenPtr pScreen, CursorPtr pCursor);

+static Bool	miDCPutUpCursor(DeviceIntPtr pDev, ScreenPtr pScreen, 

+                                CursorPtr pCursor, int x, int y, 

+                                unsigned long source, unsigned long mask);

+static Bool	miDCSaveUnderCursor(DeviceIntPtr pDev, ScreenPtr pScreen, 

+                                    int x, int y,

+				    int w, int h);

+static Bool	miDCRestoreUnderCursor(DeviceIntPtr pDev, ScreenPtr pScreen, 

+                                       int x, int y,

+				       int w, int h);

+static Bool	miDCMoveCursor(DeviceIntPtr pDev, ScreenPtr pScreen, 

+                               CursorPtr pCursor, int x, int y, 

+                               int w, int h, int dx, int dy,

+			       unsigned long source, unsigned long mask);

+static Bool	miDCChangeSave(DeviceIntPtr pDev, ScreenPtr pScreen, 

+                               int x, int y, int w, int h,	

+                               int dx, int dy);

+

+static Bool     miDCDeviceInitialize(DeviceIntPtr pDev, ScreenPtr pScreen);

+static void     miDCDeviceCleanup(DeviceIntPtr pDev, ScreenPtr pScreen);

+

+static miSpriteCursorFuncRec miDCFuncs = {

+    miDCRealizeCursor,

+    miDCUnrealizeCursor,

+    miDCPutUpCursor,

+    miDCSaveUnderCursor,

+    miDCRestoreUnderCursor,

+    miDCMoveCursor,

+    miDCChangeSave,

+    miDCDeviceInitialize,

+    miDCDeviceCleanup

+};

+

+Bool

+miDCInitialize (ScreenPtr pScreen, miPointerScreenFuncPtr screenFuncs)

+{

+    miDCScreenPtr   pScreenPriv;

+

+    pScreenPriv = malloc(sizeof (miDCScreenRec));

+    if (!pScreenPriv)

+	return FALSE;

+

+

+    pScreenPriv->CloseScreen = pScreen->CloseScreen;

+    pScreen->CloseScreen = miDCCloseScreen;

+

+    dixSetPrivate(&pScreen->devPrivates, miDCScreenKey, pScreenPriv);

+

+    if (!miSpriteInitialize (pScreen, &miDCFuncs, 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);

+}

+

+static Bool

+miDCRealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)

+{

+    if (pCursor->bits->refcnt <= 1)

+	dixSetPrivate(&pCursor->bits->devPrivates, CursorScreenKey(pScreen), NULL);

+    return TRUE;

+}

+

+#ifdef ARGB_CURSOR

+

+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;

+	}

+	dixSetPrivate(&pCursor->bits->devPrivates, CursorScreenKey(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;

+    }

+    dixSetPrivate(&pCursor->bits->devPrivates, CursorScreenKey(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;

+}

+

+static Bool

+miDCUnrealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)

+{

+    miDCCursorPtr   pPriv;

+

+    pPriv = (miDCCursorPtr)dixLookupPrivate(&pCursor->bits->devPrivates,

+					    CursorScreenKey(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);

+	dixSetPrivate(&pCursor->bits->devPrivates, CursorScreenKey(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;

+}

+

+

+static Bool

+miDCPutUpCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,

+                 int x, int y, unsigned long source, unsigned long mask)

+{

+    miDCScreenPtr   pScreenPriv;

+    miDCCursorPtr   pPriv;

+    miDCBufferPtr   pBuffer;

+    WindowPtr	    pWin;

+

+    pPriv = (miDCCursorPtr)dixLookupPrivate(&pCursor->bits->devPrivates,

+					    CursorScreenKey(pScreen));

+    if (!pPriv)

+    {

+	pPriv = miDCRealize(pScreen, pCursor);

+	if (!pPriv)

+	    return FALSE;

+    }

+    pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,

+						  miDCScreenKey);

+    pWin = WindowTable[pScreen->myNum];

+    pBuffer = MIDCBUFFER(pDev, pScreen);

+

+#ifdef ARGB_CURSOR

+    if (pPriv->pPicture)

+    {

+	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;

+}

+

+static Bool

+miDCSaveUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,

+                     int x, int y, int w, int h)

+{

+    miDCScreenPtr   pScreenPriv;

+    miDCBufferPtr   pBuffer;

+    PixmapPtr	    pSave;

+    WindowPtr	    pWin;

+    GCPtr	    pGC;

+

+    pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,

+						  miDCScreenKey);

+    pBuffer = MIDCBUFFER(pDev, pScreen);

+

+    pSave = pBuffer->pSave;

+    pWin = WindowTable[pScreen->myNum];

+    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;

+}

+

+static Bool

+miDCRestoreUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,

+                        int x, int y, int w, int h)

+{

+    miDCScreenPtr   pScreenPriv;

+    miDCBufferPtr   pBuffer;

+    PixmapPtr	    pSave;

+    WindowPtr	    pWin;

+    GCPtr	    pGC;

+

+    pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,

+						  miDCScreenKey);

+    pBuffer = MIDCBUFFER(pDev, pScreen);

+    pSave = pBuffer->pSave;

+

+    pWin = WindowTable[pScreen->myNum];

+    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;

+}

+

+static Bool

+miDCChangeSave (DeviceIntPtr pDev, ScreenPtr pScreen,

+                int x, int y, int w, int h, int dx, int dy)

+{

+    miDCScreenPtr   pScreenPriv;

+    miDCBufferPtr   pBuffer;

+    PixmapPtr	    pSave;

+    WindowPtr	    pWin;

+    GCPtr	    pGC;

+    int		    sourcex, sourcey, destx, desty, copyw, copyh;

+

+    pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,

+						  miDCScreenKey);

+    pBuffer = MIDCBUFFER(pDev, pScreen);

+

+    pSave = pBuffer->pSave;

+    pWin = WindowTable[pScreen->myNum];

+    /*

+     * restore the bits which are about to get trashed

+     */

+    if (!pSave)

+	return FALSE;

+

+    pGC = pBuffer->pRestoreGC;

+    if (pWin->drawable.serialNumber != pGC->serialNumber)

+	ValidateGC ((DrawablePtr) pWin, pGC);

+    /*

+     * copy the old bits to the screen.

+     */

+    if (dy > 0)

+    {

+	(*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,

+			       0, h - dy, w, dy, x + dx, y + h);

+    }

+    else if (dy < 0)

+    {

+	(*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,

+			       0, 0, w, -dy, x + dx, y + dy);

+    }

+    if (dy >= 0)

+    {

+	desty = y + dy;

+	sourcey = 0;

+	copyh = h - dy;

+    }

+    else

+    {

+	desty = y;

+	sourcey = - dy;

+	copyh = h + dy;

+    }

+    if (dx > 0)

+    {

+	(*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,

+			       w - dx, sourcey, dx, copyh, x + w, desty);

+    }

+    else if (dx < 0)

+    {

+	(*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,

+			       0, sourcey, -dx, copyh, x + dx, desty);

+    }

+

+    pGC = pBuffer->pSaveGC;

+    if (pSave->drawable.serialNumber != pGC->serialNumber)

+	ValidateGC ((DrawablePtr) pSave, pGC);

+    /*

+     * move the bits that are still valid within the pixmap

+     */

+    if (dx >= 0)

+    {

+	sourcex = 0;

+	destx = dx;

+	copyw = w - dx;

+    }

+    else

+    {

+	destx = 0;

+	sourcex = - dx;

+	copyw = w + dx;

+    }

+    if (dy >= 0)

+    {

+	sourcey = 0;

+	desty = dy;

+	copyh = h - dy;

+    }

+    else

+    {

+	desty = 0;

+	sourcey = -dy;

+	copyh = h + dy;

+    }

+    (*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pSave, pGC,

+			   sourcex, sourcey, copyw, copyh, destx, desty);

+    /*

+     * copy the new bits from the screen into the remaining areas of the

+     * pixmap

+     */

+    if (dy > 0)

+    {

+	(*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC,

+			       x, y, w, dy, 0, 0);

+    }

+    else if (dy < 0)

+    {

+	(*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC,

+			       x, y + h + dy, w, -dy, 0, h + dy);

+    }

+    if (dy >= 0)

+    {

+	desty = dy;

+	sourcey = y + dy;

+	copyh = h - dy;

+    }

+    else

+    {

+	desty = 0;

+	sourcey = y;

+	copyh = h + dy;

+    }

+    if (dx > 0)

+    {

+	(*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC,

+			       x, sourcey, dx, copyh, 0, desty);

+    }

+    else if (dx < 0)

+    {

+	(*pGC->ops->CopyArea) ((DrawablePtr) pWin, (DrawablePtr) pSave, pGC,

+			       x + w + dx, sourcey, -dx, copyh, w + dx, desty);

+    }

+    return TRUE;

+}

+

+static Bool

+miDCMoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,

+                int x, int y, int w, int h, int dx, int dy,

+                unsigned long source, unsigned long mask)

+{

+    miDCCursorPtr   pPriv;

+    miDCScreenPtr   pScreenPriv;

+    miDCBufferPtr   pBuffer;

+    int		    status;

+    WindowPtr	    pWin;

+    GCPtr	    pGC;

+    XID		    gcval = FALSE;

+    PixmapPtr	    pTemp;

+

+    pPriv = (miDCCursorPtr)dixLookupPrivate(&pCursor->bits->devPrivates,

+					    CursorScreenKey(pScreen));

+    if (!pPriv)

+    {

+	pPriv = miDCRealize(pScreen, pCursor);

+	if (!pPriv)

+	    return FALSE;

+    }

+    pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,

+						  miDCScreenKey);

+    pWin = WindowTable[pScreen->myNum];

+    pBuffer = MIDCBUFFER(pDev, pScreen);

+

+    pTemp = pBuffer->pTemp;

+    if (!pTemp ||

+	pTemp->drawable.width != pBuffer->pSave->drawable.width ||

+	pTemp->drawable.height != pBuffer->pSave->drawable.height)

+    {

+	if (pTemp)

+	    (*pScreen->DestroyPixmap) (pTemp);

+#ifdef ARGB_CURSOR

+	if (pBuffer->pTempPicture)

+	{

+	    FreePicture (pBuffer->pTempPicture, 0);

+	    pBuffer->pTempPicture = 0;

+	}

+#endif

+	pBuffer->pTemp = pTemp = (*pScreen->CreatePixmap)

+	    (pScreen, w, h, pBuffer->pSave->drawable.depth, 0);

+	if (!pTemp)

+	    return FALSE;

+    }

+    if (!pBuffer->pMoveGC)

+    {

+	pBuffer->pMoveGC = CreateGC ((DrawablePtr)pTemp,

+	    GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);

+	if (!pBuffer->pMoveGC)

+	    return FALSE;

+    }

+    /*

+     * copy the saved area to a temporary pixmap

+     */

+    pGC = pBuffer->pMoveGC;

+    if (pGC->serialNumber != pTemp->drawable.serialNumber)

+	ValidateGC ((DrawablePtr) pTemp, pGC);

+    (*pGC->ops->CopyArea)((DrawablePtr)pBuffer->pSave,

+			  (DrawablePtr)pTemp, pGC, 0, 0, w, h, 0, 0);

+    

+    /*

+     * draw the cursor in the temporary pixmap

+     */

+#ifdef ARGB_CURSOR

+    if (pPriv->pPicture)

+    {

+	if (!pBuffer->pTempPicture)

+            miDCMakePicture(&pBuffer->pTempPicture, &pTemp->drawable, pWin);

+

+	CompositePicture (PictOpOver,

+			  pPriv->pPicture,

+			  NULL,

+			  pBuffer->pTempPicture,

+			  0, 0, 0, 0, 

+			  dx, dy, 

+			  pCursor->bits->width,

+			  pCursor->bits->height);

+    }

+    else

+#endif

+    {

+	miDCPutBits ((DrawablePtr)pTemp, pPriv,

+		     pBuffer->pPixSourceGC, pBuffer->pPixMaskGC,

+		     dx, dy, pCursor->bits->width, pCursor->bits->height,

+		     source, mask);

+    }

+

+    pGC = pBuffer->pRestoreGC;

+    if (pWin->drawable.serialNumber != pGC->serialNumber)

+	ValidateGC ((DrawablePtr) pWin, pGC);

+

+    (*pGC->ops->CopyArea) ((DrawablePtr) pTemp, (DrawablePtr) pWin,

+			    pGC,

+			    0, 0, w, h, x, y);

+    return TRUE;

+}

+

+static Bool

+miDCDeviceInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)

+{

+    miDCBufferPtr   pBuffer;

+    WindowPtr       pWin;

+    XID             gcval = FALSE;

+    int             status;

+    int             i;

+

+    if (!DevHasCursor(pDev))

+        return TRUE;

+

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

+    {

+        pScreen = screenInfo.screens[i];

+

+        pBuffer = malloc(sizeof(miDCBufferRec));

+        if (!pBuffer)

+            goto failure;

+

+        dixSetPrivate(&pDev->devPrivates, miDCSpriteKey + pScreen->myNum, pBuffer);

+        pWin = WindowTable[pScreen->myNum];

+

+        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;

+

+        pBuffer->pMoveGC = CreateGC ((DrawablePtr)pWin,

+            GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);

+        if (!pBuffer->pMoveGC)

+            goto failure;

+

+        pBuffer->pPixSourceGC = CreateGC ((DrawablePtr)pWin,

+            GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);

+        if (!pBuffer->pPixSourceGC)

+            goto failure;

+

+        pBuffer->pPixMaskGC = CreateGC ((DrawablePtr)pWin,

+            GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);

+        if (!pBuffer->pPixMaskGC)

+            goto failure;

+

+#ifdef ARGB_CURSOR

+        miDCMakePicture(&pBuffer->pRootPicture, &pWin->drawable, pWin);

+        if (!pBuffer->pRootPicture)

+            goto failure;

+

+        pBuffer->pTempPicture = NULL;

+#endif

+

+        // these get (re)allocated lazily depending on the cursor size

+        pBuffer->pSave = pBuffer->pTemp = NULL;

+    }

+

+    return TRUE;

+

+failure:

+

+    miDCDeviceCleanup(pDev, pScreen);

+

+    return FALSE;

+}

+

+static 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 = MIDCBUFFER(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);

+                if (pBuffer->pMoveGC) FreeGC(pBuffer->pMoveGC, (GContext) 0);

+                if (pBuffer->pPixSourceGC) FreeGC(pBuffer->pPixSourceGC, (GContext) 0);

+                if (pBuffer->pPixMaskGC) FreeGC(pBuffer->pPixMaskGC, (GContext) 0);

+

+                if (pBuffer->pSave) (*pScreen->DestroyPixmap)(pBuffer->pSave);

+                if (pBuffer->pTemp) (*pScreen->DestroyPixmap)(pBuffer->pTemp);

+

+                free(pBuffer);

+                dixSetPrivate(&pDev->devPrivates, miDCSpriteKey + pScreen->myNum, NULL);

+            }

+        }

+    }

+}

diff --git a/xorg-server/mi/mieq.c b/xorg-server/mi/mieq.c
index 01b4ae2a3..a400fe29b 100644
--- a/xorg-server/mi/mieq.c
+++ b/xorg-server/mi/mieq.c
@@ -191,7 +191,7 @@ mieqEnqueue(DeviceIntPtr pDev, InternalEvent *e)
     if (evt->evlen < evlen)

     {

         evt->evlen = evlen;

-        evt->event = xrealloc(evt->event, evt->evlen);

+        evt->event = realloc(evt->event, evt->evlen);

         if (!evt->event)

         {

             ErrorF("[mi] Running out of memory. Tossing event.\n");

@@ -440,7 +440,7 @@ mieqProcessInputEvents(void)
         evlen   = e->events->evlen;

         if(evlen > event_size)

         {

-            event = xrealloc(event, evlen);

+            event = realloc(event, evlen);

             event_size=evlen;

 

             if (!event)

diff --git a/xorg-server/mi/miexpose.c b/xorg-server/mi/miexpose.c
index f52b49211..f6f195daa 100644
--- a/xorg-server/mi/miexpose.c
+++ b/xorg-server/mi/miexpose.c
@@ -1,699 +1,700 @@
-/***********************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-/*****************************************************************
-
-Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software.
-
-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
-DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
-BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 Digital Equipment Corporation
-shall not be used in advertising or otherwise to promote the sale, use or other
-dealings in this Software without prior written authorization from Digital
-Equipment Corporation.
-
-******************************************************************/
-
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xproto.h>
-#include <X11/Xprotostr.h>
-
-#include "misc.h"
-#include "regionstr.h"
-#include "scrnintstr.h"
-#include "gcstruct.h"
-#include "windowstr.h"
-#include "pixmap.h"
-#include "input.h"
-
-#include "dixstruct.h"
-#include "mi.h"
-#include <X11/Xmd.h>
-
-#include "globals.h"
-
-#ifdef PANORAMIX
-#include "panoramiX.h"
-#include "panoramiXsrv.h"
-#endif
-
-/*
-    machine-independent graphics exposure code.  any device that uses
-the region package can call this.
-*/
-
-#ifndef RECTLIMIT
-#define RECTLIMIT 25		/* pick a number, any number > 8 */
-#endif
-
-/* miHandleExposures 
-    generate a region for exposures for areas that were copied from obscured or
-non-existent areas to non-obscured areas of the destination.  Paint the
-background for the region, if the destination is a window.
-
-NOTE:
-     this should generally be called, even if graphicsExposures is false,
-because this is where bits get recovered from backing store.
-
-NOTE:
-     added argument 'plane' is used to indicate how exposures from backing
-store should be accomplished. If plane is 0 (i.e. no bit plane), CopyArea
-should be used, else a CopyPlane of the indicated plane will be used. The
-exposing is done by the backing store's GraphicsExpose function, of course.
-
-*/
-
-RegionPtr
-miHandleExposures(DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable,
-		  GCPtr pGC, int srcx, int srcy, int width, int height,
-		  int dstx, int dsty, unsigned long plane)
-{
-    ScreenPtr pscr;
-    RegionPtr prgnSrcClip;	/* drawable-relative source clip */
-    RegionRec rgnSrcRec;
-    RegionPtr prgnDstClip;	/* drawable-relative dest clip */
-    RegionRec rgnDstRec;
-    BoxRec srcBox;		/* unclipped source */
-    RegionRec rgnExposed;	/* exposed region, calculated source-
-				   relative, made dst relative to
-				   intersect with visible parts of
-				   dest and send events to client, 
-				   and then screen relative to paint 
-				   the window background
-				*/
-    WindowPtr pSrcWin;
-    BoxRec expBox;
-    Bool extents;
-
-    /* This prevents warning about pscr not being used. */
-    pGC->pScreen = pscr = pGC->pScreen;
-
-    /* avoid work if we can */
-    if (!pGC->graphicsExposures &&
-	(pDstDrawable->type == DRAWABLE_PIXMAP) &&
-	((pSrcDrawable->type == DRAWABLE_PIXMAP) ||
-	 (((WindowPtr)pSrcDrawable)->backStorage == NULL)))
-	return NULL;
-	
-    srcBox.x1 = srcx;
-    srcBox.y1 = srcy;
-    srcBox.x2 = srcx+width;
-    srcBox.y2 = srcy+height;
-
-    if (pSrcDrawable->type != DRAWABLE_PIXMAP)
-    {
-	BoxRec TsrcBox;
-
-	TsrcBox.x1 = srcx + pSrcDrawable->x;
-	TsrcBox.y1 = srcy + pSrcDrawable->y;
-	TsrcBox.x2 = TsrcBox.x1 + width;
-	TsrcBox.y2 = TsrcBox.y1 + height;
-	pSrcWin = (WindowPtr) pSrcDrawable;
-	if (pGC->subWindowMode == IncludeInferiors)
- 	{
-	    prgnSrcClip = NotClippedByChildren (pSrcWin);
-	    if ((RECT_IN_REGION(pscr, prgnSrcClip, &TsrcBox)) == rgnIN)
-	    {
-		REGION_DESTROY(pscr, prgnSrcClip);
-		return NULL;
-	    }
-	}
- 	else
- 	{
-	    if ((RECT_IN_REGION(pscr, &pSrcWin->clipList, &TsrcBox)) == rgnIN)
-		return NULL;
-	    prgnSrcClip = &rgnSrcRec;
-	    REGION_NULL(pscr, prgnSrcClip);
-	    REGION_COPY(pscr, prgnSrcClip, &pSrcWin->clipList);
-	}
-	REGION_TRANSLATE(pscr, prgnSrcClip,
-				-pSrcDrawable->x, -pSrcDrawable->y);
-    }
-    else
-    {
-	BoxRec	box;
-
-	if ((srcBox.x1 >= 0) && (srcBox.y1 >= 0) &&
-	    (srcBox.x2 <= pSrcDrawable->width) &&
- 	    (srcBox.y2 <= pSrcDrawable->height))
-	    return NULL;
-
-	box.x1 = 0;
-	box.y1 = 0;
-	box.x2 = pSrcDrawable->width;
-	box.y2 = pSrcDrawable->height;
-	prgnSrcClip = &rgnSrcRec;
-	REGION_INIT(pscr, prgnSrcClip, &box, 1);
-	pSrcWin = NULL;
-    }
-
-    if (pDstDrawable == pSrcDrawable)
-    {
-	prgnDstClip = prgnSrcClip;
-    }
-    else if (pDstDrawable->type != DRAWABLE_PIXMAP)
-    {
-	if (pGC->subWindowMode == IncludeInferiors)
-	{
-	    prgnDstClip = NotClippedByChildren((WindowPtr)pDstDrawable);
-	}
-	else
-	{
-	    prgnDstClip = &rgnDstRec;
-	    REGION_NULL(pscr, prgnDstClip);
-	    REGION_COPY(pscr, prgnDstClip,
-				&((WindowPtr)pDstDrawable)->clipList);
-	}
-	REGION_TRANSLATE(pscr, prgnDstClip,
-				 -pDstDrawable->x, -pDstDrawable->y);
-    }
-    else
-    {
-	BoxRec	box;
-
-	box.x1 = 0;
-	box.y1 = 0;
-	box.x2 = pDstDrawable->width;
-	box.y2 = pDstDrawable->height;
-	prgnDstClip = &rgnDstRec;
-	REGION_INIT(pscr, prgnDstClip, &box, 1);
-    }
-
-    /* drawable-relative source region */
-    REGION_INIT(pscr, &rgnExposed, &srcBox, 1);
-
-    /* now get the hidden parts of the source box*/
-    REGION_SUBTRACT(pscr, &rgnExposed, &rgnExposed, prgnSrcClip);
-
-    /* move them over the destination */
-    REGION_TRANSLATE(pscr, &rgnExposed, dstx-srcx, dsty-srcy);
-
-    /* intersect with visible areas of dest */
-    REGION_INTERSECT(pscr, &rgnExposed, &rgnExposed, prgnDstClip);
-
-    /* intersect with client clip region. */
-    if (pGC->clientClipType == CT_REGION)
-	REGION_INTERSECT(pscr, &rgnExposed, &rgnExposed, pGC->clientClip);
-
-    /*
-     * If we have LOTS of rectangles, we decide to take the extents
-     * and force an exposure on that.  This should require much less
-     * work overall, on both client and server.  This is cheating, but
-     * isn't prohibited by the protocol ("spontaneous combustion" :-)
-     * for windows.
-     */
-    extents = pGC->graphicsExposures &&
-	      (REGION_NUM_RECTS(&rgnExposed) > RECTLIMIT) &&
-	      (pDstDrawable->type != DRAWABLE_PIXMAP);
-    if (pSrcWin)
-    {
-	RegionPtr	region;
-    	if (!(region = wClipShape (pSrcWin)))
-    	    region = wBoundingShape (pSrcWin);
-    	/*
-     	 * If you try to CopyArea the extents of a shaped window, compacting the
-     	 * exposed region will undo all our work!
-     	 */
-    	if (extents && pSrcWin && region &&
-    	    (RECT_IN_REGION(pscr, region, &srcBox) != rgnIN))
-	    	extents = FALSE;
-    }
-    if (extents)
-    {
-	expBox = *REGION_EXTENTS(pscr, &rgnExposed);
-	REGION_RESET(pscr, &rgnExposed, &expBox);
-    }
-    if ((pDstDrawable->type != DRAWABLE_PIXMAP) &&
-	(((WindowPtr)pDstDrawable)->backgroundState != None))
-    {
-	WindowPtr pWin = (WindowPtr)pDstDrawable;
-
-	/* make the exposed area screen-relative */
-	REGION_TRANSLATE(pscr, &rgnExposed, 
-				 pDstDrawable->x, pDstDrawable->y);
-
-	if (extents)
-	{
-	    /* PaintWindowBackground doesn't clip, so we have to */
-	    REGION_INTERSECT(pscr, &rgnExposed, &rgnExposed, &pWin->clipList);
-	}
-	miPaintWindow((WindowPtr)pDstDrawable, &rgnExposed, PW_BACKGROUND);
-
-	if (extents)
-	{
-	    REGION_RESET(pscr, &rgnExposed, &expBox);
-	}
-	else
-	    REGION_TRANSLATE(pscr, &rgnExposed,
-				     -pDstDrawable->x, -pDstDrawable->y);
-    }
-    if (prgnDstClip == &rgnDstRec)
-    {
-	REGION_UNINIT(pscr, prgnDstClip);
-    }
-    else if (prgnDstClip != prgnSrcClip)
-    {
-	REGION_DESTROY(pscr, prgnDstClip);
-    }
-
-    if (prgnSrcClip == &rgnSrcRec)
-    {
-	REGION_UNINIT(pscr, prgnSrcClip);
-    }
-    else
-    {
-	REGION_DESTROY(pscr, prgnSrcClip);
-    }
-
-    if (pGC->graphicsExposures)
-    {
-	/* don't look */
-	RegionPtr exposed = REGION_CREATE(pscr, NullBox, 0);
-	*exposed = rgnExposed;
-	return exposed;
-    }
-    else
-    {
-	REGION_UNINIT(pscr, &rgnExposed);
-	return NULL;
-    }
-}
-
-/* send GraphicsExpose events, or a NoExpose event, based on the region */
-
-void
-miSendGraphicsExpose (ClientPtr client, RegionPtr pRgn, XID drawable,
-                      int major, int minor)
-{
-    if (pRgn && !REGION_NIL(pRgn))
-    {
-        xEvent *pEvent;
-	xEvent *pe;
-	BoxPtr pBox;
-	int i;
-	int numRects;
-
-	numRects = REGION_NUM_RECTS(pRgn);
-	pBox = REGION_RECTS(pRgn);
-	if(!(pEvent = xalloc(numRects * sizeof(xEvent))))
-		return;
-	pe = pEvent;
-
-	for (i=1; i<=numRects; i++, pe++, pBox++)
-	{
-	    pe->u.u.type = GraphicsExpose;
-	    pe->u.graphicsExposure.drawable = drawable;
-	    pe->u.graphicsExposure.x = pBox->x1;
-	    pe->u.graphicsExposure.y = pBox->y1;
-	    pe->u.graphicsExposure.width = pBox->x2 - pBox->x1;
-	    pe->u.graphicsExposure.height = pBox->y2 - pBox->y1;
-	    pe->u.graphicsExposure.count = numRects - i;
-	    pe->u.graphicsExposure.majorEvent = major;
-	    pe->u.graphicsExposure.minorEvent = minor;
-	}
-	TryClientEvents(client, NULL, pEvent, numRects,
-			    (Mask)0, NoEventMask, NullGrab);
-	xfree(pEvent);
-    }
-    else
-    {
-        xEvent event;
-	memset(&event, 0, sizeof(xEvent));
-	event.u.u.type = NoExpose;
-	event.u.noExposure.drawable = drawable;
-	event.u.noExposure.majorEvent = major;
-	event.u.noExposure.minorEvent = minor;
-	TryClientEvents(client, NULL, &event, 1,
-	    (Mask)0, NoEventMask, NullGrab);
-    }
-}
-
-
-void
-miSendExposures( WindowPtr pWin, RegionPtr pRgn, int dx, int dy)
-{
-    BoxPtr pBox;
-    int numRects;
-    xEvent *pEvent, *pe;
-    int i;
-
-    pBox = REGION_RECTS(pRgn);
-    numRects = REGION_NUM_RECTS(pRgn);
-    if(!(pEvent = xcalloc(1, numRects * sizeof(xEvent))))
-	return;
-
-    for (i=numRects, pe = pEvent; --i >= 0; pe++, pBox++)
-    {
-	pe->u.u.type = Expose;
-	pe->u.expose.window = pWin->drawable.id;
-	pe->u.expose.x = pBox->x1 - dx;
-	pe->u.expose.y = pBox->y1 - dy;
-	pe->u.expose.width = pBox->x2 - pBox->x1;
-	pe->u.expose.height = pBox->y2 - pBox->y1;
-	pe->u.expose.count = i;
-    }
-
-#ifdef PANORAMIX
-    if(!noPanoramiXExtension) {
-	int scrnum = pWin->drawable.pScreen->myNum;
-	int x = 0, y = 0;
-	XID realWin = 0;
-
-	if(!pWin->parent) {
-	    x = panoramiXdataPtr[scrnum].x;
-	    y = panoramiXdataPtr[scrnum].y;
-	    pWin = WindowTable[0];
-	    realWin = pWin->drawable.id;
-	} else if (scrnum) {
-	    PanoramiXRes *win;
-	    win = PanoramiXFindIDByScrnum(XRT_WINDOW, 
-			pWin->drawable.id, scrnum);
-	    if(!win) {
-		xfree(pEvent);
-		return;
-	    }
-	    realWin = win->info[0].id;
-	    dixLookupWindow(&pWin, realWin, serverClient, DixSendAccess);
-	}
-	if(x || y || scrnum)
-	  for (i = 0; i < numRects; i++) {
-	      pEvent[i].u.expose.window = realWin;
-	      pEvent[i].u.expose.x += x;
-	      pEvent[i].u.expose.y += y;
-	  }
-    }
-#endif
-
-    DeliverEvents(pWin, pEvent, numRects, NullWindow);
-
-    xfree(pEvent);
-}
-
-void
-miWindowExposures( WindowPtr pWin, RegionPtr prgn, RegionPtr other_exposed)
-{
-    RegionPtr   exposures = prgn;
-    if ((prgn && !REGION_NIL(prgn)) || 
-	(exposures && !REGION_NIL(exposures)) || other_exposed)
-    {
-	RegionRec   expRec;
-	int	    clientInterested;
-
-	/*
-	 * Restore from backing-store FIRST.
-	 */
-	clientInterested = (pWin->eventMask|wOtherEventMasks(pWin)) & ExposureMask;
-	if (other_exposed)
-	{
-	    if (exposures)
-	    {
-		REGION_UNION(pWin->drawable.pScreen, other_exposed,
-						  exposures,
-					          other_exposed);
-		if (exposures != prgn)
-		    REGION_DESTROY(pWin->drawable.pScreen, exposures);
-	    }
-	    exposures = other_exposed;
-	}
-	if (clientInterested && exposures && (REGION_NUM_RECTS(exposures) > RECTLIMIT))
-	{
-	    /*
-	     * If we have LOTS of rectangles, we decide to take the extents
-	     * and force an exposure on that.  This should require much less
-	     * work overall, on both client and server.  This is cheating, but
-	     * isn't prohibited by the protocol ("spontaneous combustion" :-).
-	     */
-	    BoxRec box;
-
-	    box = *REGION_EXTENTS( pWin->drawable.pScreen, exposures);
-	    if (exposures == prgn) {
-		exposures = &expRec;
-		REGION_INIT( pWin->drawable.pScreen, exposures, &box, 1);
-		REGION_RESET( pWin->drawable.pScreen, prgn, &box);
-	    } else {
-		REGION_RESET( pWin->drawable.pScreen, exposures, &box);
-		REGION_UNION( pWin->drawable.pScreen, prgn, prgn, exposures);
-	    }
-	    /* PaintWindowBackground doesn't clip, so we have to */
-	    REGION_INTERSECT( pWin->drawable.pScreen, prgn, prgn, &pWin->clipList);
-	}
-	if (prgn && !REGION_NIL(prgn))
-	    miPaintWindow(pWin, prgn, PW_BACKGROUND);
-	if (clientInterested && exposures && !REGION_NIL(exposures))
-	    miSendExposures(pWin, exposures,
-			    pWin->drawable.x, pWin->drawable.y);
-	if (exposures == &expRec)
-	{
-	    REGION_UNINIT( pWin->drawable.pScreen, exposures);
-	}
-	else if (exposures && exposures != prgn && exposures != other_exposed)
-	    REGION_DESTROY( pWin->drawable.pScreen, exposures);
-	if (prgn)
-	    REGION_EMPTY( pWin->drawable.pScreen, prgn);
-    }
-    else if (exposures && exposures != prgn)
-	REGION_DESTROY( pWin->drawable.pScreen, exposures);
-}
-
-#ifdef ROOTLESS
-/* Ugly, ugly, but we lost our hooks into miPaintWindow... =/ */
-void RootlessSetPixmapOfAncestors(WindowPtr pWin);
-void RootlessStartDrawing(WindowPtr pWin);
-void RootlessDamageRegion(WindowPtr pWin, RegionPtr prgn);
-Bool IsFramedWindow(WindowPtr pWin);
-#endif 
-
-void
-miPaintWindow(WindowPtr pWin, RegionPtr prgn, int what)
-{
-    ScreenPtr	pScreen = pWin->drawable.pScreen;
-    ChangeGCVal gcval[6];
-    BITS32	gcmask;
-    GCPtr	pGC;
-    int		i;
-    BoxPtr	pbox;
-    xRectangle	*prect;
-    int		numRects;
-    /*
-     * Distance from screen to destination drawable, use this
-     * to adjust rendering coordinates which come in in screen space
-     */
-    int		draw_x_off, draw_y_off;
-    /*
-     * Tile offset for drawing; these need to align the tile
-     * to the appropriate window origin
-     */
-    int		tile_x_off, tile_y_off;
-    PixUnion	fill;
-    Bool	solid = TRUE;
-    DrawablePtr	drawable = &pWin->drawable;
-
-#ifdef ROOTLESS
-    if(!drawable || drawable->type == UNDRAWABLE_WINDOW)
-	return;
-
-    if(IsFramedWindow(pWin)) {
-        RootlessStartDrawing(pWin);
-        RootlessDamageRegion(pWin, prgn);
-    
-        if(pWin->backgroundState == ParentRelative) {
-            if((what == PW_BACKGROUND) || 
-               (what == PW_BORDER && !pWin->borderIsPixel))
-                RootlessSetPixmapOfAncestors(pWin);
-        }
-    }
-#endif
-    
-    if (what == PW_BACKGROUND)
-    {
-	while (pWin->backgroundState == ParentRelative)
-	    pWin = pWin->parent;
-
-	draw_x_off = drawable->x;
-	draw_y_off = drawable->y;
-
-	tile_x_off = pWin->drawable.x - draw_x_off;
-	tile_y_off = pWin->drawable.y - draw_y_off;
-	fill = pWin->background;
-	switch (pWin->backgroundState) {
-	case None:
-	    return;
-	case BackgroundPixmap:
-	    solid = FALSE;
-	    break;
-	}
-    }
-    else
-    {
-	PixmapPtr   pixmap;
-
-	tile_x_off = drawable->x;
-	tile_y_off = drawable->y;
-	
-	/* servers without pixmaps draw their own borders */
-	if (!pScreen->GetWindowPixmap)
-	    return;
-	pixmap = (*pScreen->GetWindowPixmap) ((WindowPtr) drawable);
-	drawable = &pixmap->drawable;
-#ifdef COMPOSITE
-	draw_x_off = pixmap->screen_x;
-	draw_y_off = pixmap->screen_y;
-	tile_x_off -= draw_x_off;
-	tile_y_off -= draw_y_off;
-#else
-	draw_x_off = 0;
-	draw_y_off = 0;
-#endif
-	fill = pWin->border;
-	solid = pWin->borderIsPixel;
-    }
-    
-    gcval[0].val = GXcopy;
-    gcmask = GCFunction;
-
-#ifdef ROOTLESS_SAFEALPHA
-/* Bit mask for alpha channel with a particular number of bits per
- * pixel. Note that we only care for 32bpp data. Mac OS X uses planar
- * alpha for 16bpp.
- */
-#define RootlessAlphaMask(bpp) ((bpp) == 32 ? 0xFF000000 : 0)
-#endif
-    
-    if (solid)
-    {
-#ifdef ROOTLESS_SAFEALPHA
-	gcval[1].val = fill.pixel | RootlessAlphaMask(pWin->drawable.bitsPerPixel);
-#else
-	gcval[1].val = fill.pixel;
-#endif
-	gcval[2].val  = FillSolid;
-	gcmask |= GCForeground | GCFillStyle;
-    }
-    else
-    {
-	int c=1;
-#ifdef ROOTLESS_SAFEALPHA
-	gcval[c++].val = ((CARD32)-1) & ~RootlessAlphaMask(pWin->drawable.bitsPerPixel);
-	gcmask |= GCPlaneMask;
-#endif
-	gcval[c++].val = FillTiled;
-	gcval[c++].ptr = (pointer)fill.pixmap;
-	gcval[c++].val = tile_x_off;
-	gcval[c++].val = tile_y_off;
-	gcmask |= GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin;
-    }
-
-    prect = xalloc(REGION_NUM_RECTS(prgn) * sizeof(xRectangle));
-    if (!prect)
-	return;
-
-    pGC = GetScratchGC(drawable->depth, drawable->pScreen);
-    if (!pGC)
-    {
-	xfree(prect);
-	return;
-    }
-    
-    dixChangeGC (NullClient, pGC, gcmask, NULL, gcval);
-    ValidateGC (drawable, pGC);
-
-    numRects = REGION_NUM_RECTS(prgn);
-    pbox = REGION_RECTS(prgn);
-    for (i= numRects; --i >= 0; pbox++, prect++)
-    {
-	prect->x = pbox->x1 - draw_x_off;
-	prect->y = pbox->y1 - draw_y_off;
-	prect->width = pbox->x2 - pbox->x1;
-	prect->height = pbox->y2 - pbox->y1;
-    }
-    prect -= numRects;
-    (*pGC->ops->PolyFillRect)(drawable, pGC, numRects, prect);
-    xfree(prect);
-
-    FreeScratchGC(pGC);
-}
-
-
-/* MICLEARDRAWABLE -- sets the entire drawable to the background color of
- * the GC.  Useful when we have a scratch drawable and need to initialize 
- * it. */
-void
-miClearDrawable(DrawablePtr pDraw, GCPtr pGC)
-{
-    XID fg = pGC->fgPixel;
-    XID bg = pGC->bgPixel;
-    xRectangle rect;
-
-    rect.x = 0;
-    rect.y = 0;
-    rect.width = pDraw->width;
-    rect.height = pDraw->height;
-    DoChangeGC(pGC, GCForeground, &bg, 0);
-    ValidateGC(pDraw, pGC);
-    (*pGC->ops->PolyFillRect)(pDraw, pGC, 1, &rect);
-    DoChangeGC(pGC, GCForeground, &fg, 0);
-    ValidateGC(pDraw, pGC);
-}
+/***********************************************************

+

+Copyright 1987, 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.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+******************************************************************/

+/*****************************************************************

+

+Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.

+

+Permission is hereby granted, free of charge, to any person obtaining a copy

+of this software and associated documentation files (the "Software"), to deal

+in the Software without restriction, including without limitation the rights

+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

+copies of the Software.

+

+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

+DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,

+BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 Digital Equipment Corporation

+shall not be used in advertising or otherwise to promote the sale, use or other

+dealings in this Software without prior written authorization from Digital

+Equipment Corporation.

+

+******************************************************************/

+

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <X11/X.h>

+#include <X11/Xproto.h>

+#include <X11/Xprotostr.h>

+

+#include "misc.h"

+#include "regionstr.h"

+#include "scrnintstr.h"

+#include "gcstruct.h"

+#include "windowstr.h"

+#include "pixmap.h"

+#include "input.h"

+

+#include "dixstruct.h"

+#include "mi.h"

+#include <X11/Xmd.h>

+

+#include "globals.h"

+

+#ifdef PANORAMIX

+#include "panoramiX.h"

+#include "panoramiXsrv.h"

+#endif

+

+/*

+    machine-independent graphics exposure code.  any device that uses

+the region package can call this.

+*/

+

+#ifndef RECTLIMIT

+#define RECTLIMIT 25		/* pick a number, any number > 8 */

+#endif

+

+/* miHandleExposures 

+    generate a region for exposures for areas that were copied from obscured or

+non-existent areas to non-obscured areas of the destination.  Paint the

+background for the region, if the destination is a window.

+

+NOTE:

+     this should generally be called, even if graphicsExposures is false,

+because this is where bits get recovered from backing store.

+

+NOTE:

+     added argument 'plane' is used to indicate how exposures from backing

+store should be accomplished. If plane is 0 (i.e. no bit plane), CopyArea

+should be used, else a CopyPlane of the indicated plane will be used. The

+exposing is done by the backing store's GraphicsExpose function, of course.

+

+*/

+

+RegionPtr

+miHandleExposures(DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable,

+		  GCPtr pGC, int srcx, int srcy, int width, int height,

+		  int dstx, int dsty, unsigned long plane)

+{

+    ScreenPtr pscr;

+    RegionPtr prgnSrcClip;	/* drawable-relative source clip */

+    RegionRec rgnSrcRec;

+    RegionPtr prgnDstClip;	/* drawable-relative dest clip */

+    RegionRec rgnDstRec;

+    BoxRec srcBox;		/* unclipped source */

+    RegionRec rgnExposed;	/* exposed region, calculated source-

+				   relative, made dst relative to

+				   intersect with visible parts of

+				   dest and send events to client, 

+				   and then screen relative to paint 

+				   the window background

+				*/

+    WindowPtr pSrcWin;

+    BoxRec expBox;

+    Bool extents;

+

+    /* This prevents warning about pscr not being used. */

+    pGC->pScreen = pscr = pGC->pScreen;

+

+    /* avoid work if we can */

+    if (!pGC->graphicsExposures &&

+	(pDstDrawable->type == DRAWABLE_PIXMAP) &&

+	((pSrcDrawable->type == DRAWABLE_PIXMAP) ||

+	 (((WindowPtr)pSrcDrawable)->backStorage == NULL)))

+	return NULL;

+	

+    srcBox.x1 = srcx;

+    srcBox.y1 = srcy;

+    srcBox.x2 = srcx+width;

+    srcBox.y2 = srcy+height;

+

+    if (pSrcDrawable->type != DRAWABLE_PIXMAP)

+    {

+	BoxRec TsrcBox;

+

+	TsrcBox.x1 = srcx + pSrcDrawable->x;

+	TsrcBox.y1 = srcy + pSrcDrawable->y;

+	TsrcBox.x2 = TsrcBox.x1 + width;

+	TsrcBox.y2 = TsrcBox.y1 + height;

+	pSrcWin = (WindowPtr) pSrcDrawable;

+	if (pGC->subWindowMode == IncludeInferiors)

+ 	{

+	    prgnSrcClip = NotClippedByChildren (pSrcWin);

+	    if ((RECT_IN_REGION(pscr, prgnSrcClip, &TsrcBox)) == rgnIN)

+	    {

+		REGION_DESTROY(pscr, prgnSrcClip);

+		return NULL;

+	    }

+	}

+ 	else

+ 	{

+	    if ((RECT_IN_REGION(pscr, &pSrcWin->clipList, &TsrcBox)) == rgnIN)

+		return NULL;

+	    prgnSrcClip = &rgnSrcRec;

+	    REGION_NULL(pscr, prgnSrcClip);

+	    REGION_COPY(pscr, prgnSrcClip, &pSrcWin->clipList);

+	}

+	REGION_TRANSLATE(pscr, prgnSrcClip,

+				-pSrcDrawable->x, -pSrcDrawable->y);

+    }

+    else

+    {

+	BoxRec	box;

+

+	if ((srcBox.x1 >= 0) && (srcBox.y1 >= 0) &&

+	    (srcBox.x2 <= pSrcDrawable->width) &&

+ 	    (srcBox.y2 <= pSrcDrawable->height))

+	    return NULL;

+

+	box.x1 = 0;

+	box.y1 = 0;

+	box.x2 = pSrcDrawable->width;

+	box.y2 = pSrcDrawable->height;

+	prgnSrcClip = &rgnSrcRec;

+	REGION_INIT(pscr, prgnSrcClip, &box, 1);

+	pSrcWin = NULL;

+    }

+

+    if (pDstDrawable == pSrcDrawable)

+    {

+	prgnDstClip = prgnSrcClip;

+    }

+    else if (pDstDrawable->type != DRAWABLE_PIXMAP)

+    {

+	if (pGC->subWindowMode == IncludeInferiors)

+	{

+	    prgnDstClip = NotClippedByChildren((WindowPtr)pDstDrawable);

+	}

+	else

+	{

+	    prgnDstClip = &rgnDstRec;

+	    REGION_NULL(pscr, prgnDstClip);

+	    REGION_COPY(pscr, prgnDstClip,

+				&((WindowPtr)pDstDrawable)->clipList);

+	}

+	REGION_TRANSLATE(pscr, prgnDstClip,

+				 -pDstDrawable->x, -pDstDrawable->y);

+    }

+    else

+    {

+	BoxRec	box;

+

+	box.x1 = 0;

+	box.y1 = 0;

+	box.x2 = pDstDrawable->width;

+	box.y2 = pDstDrawable->height;

+	prgnDstClip = &rgnDstRec;

+	REGION_INIT(pscr, prgnDstClip, &box, 1);

+    }

+

+    /* drawable-relative source region */

+    REGION_INIT(pscr, &rgnExposed, &srcBox, 1);

+

+    /* now get the hidden parts of the source box*/

+    REGION_SUBTRACT(pscr, &rgnExposed, &rgnExposed, prgnSrcClip);

+

+    /* move them over the destination */

+    REGION_TRANSLATE(pscr, &rgnExposed, dstx-srcx, dsty-srcy);

+

+    /* intersect with visible areas of dest */

+    REGION_INTERSECT(pscr, &rgnExposed, &rgnExposed, prgnDstClip);

+

+    /* intersect with client clip region. */

+    if (pGC->clientClipType == CT_REGION)

+	REGION_INTERSECT(pscr, &rgnExposed, &rgnExposed, pGC->clientClip);

+

+    /*

+     * If we have LOTS of rectangles, we decide to take the extents

+     * and force an exposure on that.  This should require much less

+     * work overall, on both client and server.  This is cheating, but

+     * isn't prohibited by the protocol ("spontaneous combustion" :-)

+     * for windows.

+     */

+    extents = pGC->graphicsExposures &&

+	      (REGION_NUM_RECTS(&rgnExposed) > RECTLIMIT) &&

+	      (pDstDrawable->type != DRAWABLE_PIXMAP);

+    if (pSrcWin)

+    {

+	RegionPtr	region;

+    	if (!(region = wClipShape (pSrcWin)))

+    	    region = wBoundingShape (pSrcWin);

+    	/*

+     	 * If you try to CopyArea the extents of a shaped window, compacting the

+     	 * exposed region will undo all our work!

+     	 */

+    	if (extents && pSrcWin && region &&

+    	    (RECT_IN_REGION(pscr, region, &srcBox) != rgnIN))

+	    	extents = FALSE;

+    }

+    if (extents)

+    {

+	expBox = *REGION_EXTENTS(pscr, &rgnExposed);

+	REGION_RESET(pscr, &rgnExposed, &expBox);

+    }

+    if ((pDstDrawable->type != DRAWABLE_PIXMAP) &&

+	(((WindowPtr)pDstDrawable)->backgroundState != None))

+    {

+	WindowPtr pWin = (WindowPtr)pDstDrawable;

+

+	/* make the exposed area screen-relative */

+	REGION_TRANSLATE(pscr, &rgnExposed, 

+				 pDstDrawable->x, pDstDrawable->y);

+

+	if (extents)

+	{

+	    /* miPaintWindow doesn't clip, so we have to */

+	    REGION_INTERSECT(pscr, &rgnExposed, &rgnExposed, &pWin->clipList);

+	}

+	miPaintWindow((WindowPtr)pDstDrawable, &rgnExposed, PW_BACKGROUND);

+

+	if (extents)

+	{

+	    REGION_RESET(pscr, &rgnExposed, &expBox);

+	}

+	else

+	    REGION_TRANSLATE(pscr, &rgnExposed,

+				     -pDstDrawable->x, -pDstDrawable->y);

+    }

+    if (prgnDstClip == &rgnDstRec)

+    {

+	REGION_UNINIT(pscr, prgnDstClip);

+    }

+    else if (prgnDstClip != prgnSrcClip)

+    {

+	REGION_DESTROY(pscr, prgnDstClip);

+    }

+

+    if (prgnSrcClip == &rgnSrcRec)

+    {

+	REGION_UNINIT(pscr, prgnSrcClip);

+    }

+    else

+    {

+	REGION_DESTROY(pscr, prgnSrcClip);

+    }

+

+    if (pGC->graphicsExposures)

+    {

+	/* don't look */

+	RegionPtr exposed = REGION_CREATE(pscr, NullBox, 0);

+	*exposed = rgnExposed;

+	return exposed;

+    }

+    else

+    {

+	REGION_UNINIT(pscr, &rgnExposed);

+	return NULL;

+    }

+}

+

+/* send GraphicsExpose events, or a NoExpose event, based on the region */

+

+void

+miSendGraphicsExpose (ClientPtr client, RegionPtr pRgn, XID drawable,

+                      int major, int minor)

+{

+    if (pRgn && !REGION_NIL(pRgn))

+    {

+        xEvent *pEvent;

+	xEvent *pe;

+	BoxPtr pBox;

+	int i;

+	int numRects;

+

+	numRects = REGION_NUM_RECTS(pRgn);

+	pBox = REGION_RECTS(pRgn);

+	if(!(pEvent = malloc(numRects * sizeof(xEvent))))

+		return;

+	pe = pEvent;

+

+	for (i=1; i<=numRects; i++, pe++, pBox++)

+	{

+	    pe->u.u.type = GraphicsExpose;

+	    pe->u.graphicsExposure.drawable = drawable;

+	    pe->u.graphicsExposure.x = pBox->x1;

+	    pe->u.graphicsExposure.y = pBox->y1;

+	    pe->u.graphicsExposure.width = pBox->x2 - pBox->x1;

+	    pe->u.graphicsExposure.height = pBox->y2 - pBox->y1;

+	    pe->u.graphicsExposure.count = numRects - i;

+	    pe->u.graphicsExposure.majorEvent = major;

+	    pe->u.graphicsExposure.minorEvent = minor;

+	}

+	TryClientEvents(client, NULL, pEvent, numRects,

+			    (Mask)0, NoEventMask, NullGrab);

+	free(pEvent);

+    }

+    else

+    {

+        xEvent event;

+	memset(&event, 0, sizeof(xEvent));

+	event.u.u.type = NoExpose;

+	event.u.noExposure.drawable = drawable;

+	event.u.noExposure.majorEvent = major;

+	event.u.noExposure.minorEvent = minor;

+	TryClientEvents(client, NULL, &event, 1,

+	    (Mask)0, NoEventMask, NullGrab);

+    }

+}

+

+

+void

+miSendExposures( WindowPtr pWin, RegionPtr pRgn, int dx, int dy)

+{

+    BoxPtr pBox;

+    int numRects;

+    xEvent *pEvent, *pe;

+    int i;

+

+    pBox = REGION_RECTS(pRgn);

+    numRects = REGION_NUM_RECTS(pRgn);

+    if(!(pEvent = calloc(1, numRects * sizeof(xEvent))))

+	return;

+

+    for (i=numRects, pe = pEvent; --i >= 0; pe++, pBox++)

+    {

+	pe->u.u.type = Expose;

+	pe->u.expose.window = pWin->drawable.id;

+	pe->u.expose.x = pBox->x1 - dx;

+	pe->u.expose.y = pBox->y1 - dy;

+	pe->u.expose.width = pBox->x2 - pBox->x1;

+	pe->u.expose.height = pBox->y2 - pBox->y1;

+	pe->u.expose.count = i;

+    }

+

+#ifdef PANORAMIX

+    if(!noPanoramiXExtension) {

+	int scrnum = pWin->drawable.pScreen->myNum;

+	int x = 0, y = 0;

+	XID realWin = 0;

+

+	if(!pWin->parent) {

+	    x = panoramiXdataPtr[scrnum].x;

+	    y = panoramiXdataPtr[scrnum].y;

+	    pWin = WindowTable[0];

+	    realWin = pWin->drawable.id;

+	} else if (scrnum) {

+	    PanoramiXRes *win;

+	    win = PanoramiXFindIDByScrnum(XRT_WINDOW, 

+			pWin->drawable.id, scrnum);

+	    if(!win) {

+		free(pEvent);

+		return;

+	    }

+	    realWin = win->info[0].id;

+	    dixLookupWindow(&pWin, realWin, serverClient, DixSendAccess);

+	}

+	if(x || y || scrnum)

+	  for (i = 0; i < numRects; i++) {

+	      pEvent[i].u.expose.window = realWin;

+	      pEvent[i].u.expose.x += x;

+	      pEvent[i].u.expose.y += y;

+	  }

+    }

+#endif

+

+    DeliverEvents(pWin, pEvent, numRects, NullWindow);

+

+    free(pEvent);

+}

+

+void

+miWindowExposures( WindowPtr pWin, RegionPtr prgn, RegionPtr other_exposed)

+{

+    RegionPtr   exposures = prgn;

+    if ((prgn && !REGION_NIL(prgn)) || 

+	(exposures && !REGION_NIL(exposures)) || other_exposed)

+    {

+	RegionRec   expRec;

+	int	    clientInterested;

+

+	/*

+	 * Restore from backing-store FIRST.

+	 */

+	clientInterested = (pWin->eventMask|wOtherEventMasks(pWin)) & ExposureMask;

+	if (other_exposed)

+	{

+	    if (exposures)

+	    {

+		REGION_UNION(pWin->drawable.pScreen, other_exposed,

+						  exposures,

+					          other_exposed);

+		if (exposures != prgn)

+		    REGION_DESTROY(pWin->drawable.pScreen, exposures);

+	    }

+	    exposures = other_exposed;

+	}

+	if (clientInterested && exposures && (REGION_NUM_RECTS(exposures) > RECTLIMIT))

+	{

+	    /*

+	     * If we have LOTS of rectangles, we decide to take the extents

+	     * and force an exposure on that.  This should require much less

+	     * work overall, on both client and server.  This is cheating, but

+	     * isn't prohibited by the protocol ("spontaneous combustion" :-).

+	     */

+	    BoxRec box;

+

+	    box = *REGION_EXTENTS( pWin->drawable.pScreen, exposures);

+	    if (exposures == prgn) {

+		exposures = &expRec;

+		REGION_INIT( pWin->drawable.pScreen, exposures, &box, 1);

+		REGION_RESET( pWin->drawable.pScreen, prgn, &box);

+	    } else {

+		REGION_RESET( pWin->drawable.pScreen, exposures, &box);

+		REGION_UNION( pWin->drawable.pScreen, prgn, prgn, exposures);

+	    }

+	    /* miPaintWindow doesn't clip, so we have to */

+	    REGION_INTERSECT( pWin->drawable.pScreen, prgn, prgn, &pWin->clipList);

+	}

+	if (prgn && !REGION_NIL(prgn))

+	    miPaintWindow(pWin, prgn, PW_BACKGROUND);

+	if (clientInterested && exposures && !REGION_NIL(exposures))

+	    miSendExposures(pWin, exposures,

+			    pWin->drawable.x, pWin->drawable.y);

+	if (exposures == &expRec)

+	{

+	    REGION_UNINIT( pWin->drawable.pScreen, exposures);

+	}

+	else if (exposures && exposures != prgn && exposures != other_exposed)

+	    REGION_DESTROY( pWin->drawable.pScreen, exposures);

+	if (prgn)

+	    REGION_EMPTY( pWin->drawable.pScreen, prgn);

+    }

+    else if (exposures && exposures != prgn)

+	REGION_DESTROY( pWin->drawable.pScreen, exposures);

+}

+

+#ifdef ROOTLESS

+/* Ugly, ugly, but we lost our hooks into miPaintWindow... =/ */

+void RootlessSetPixmapOfAncestors(WindowPtr pWin);

+void RootlessStartDrawing(WindowPtr pWin);

+void RootlessDamageRegion(WindowPtr pWin, RegionPtr prgn);

+Bool IsFramedWindow(WindowPtr pWin);

+#endif 

+

+void

+miPaintWindow(WindowPtr pWin, RegionPtr prgn, int what)

+{

+    ScreenPtr	pScreen = pWin->drawable.pScreen;

+    ChangeGCVal gcval[6];

+    BITS32	gcmask;

+    GCPtr	pGC;

+    int		i;

+    BoxPtr	pbox;

+    xRectangle	*prect;

+    int		numRects;

+    /*

+     * Distance from screen to destination drawable, use this

+     * to adjust rendering coordinates which come in in screen space

+     */

+    int		draw_x_off, draw_y_off;

+    /*

+     * Tile offset for drawing; these need to align the tile

+     * to the appropriate window origin

+     */

+    int		tile_x_off, tile_y_off;

+    PixUnion	fill;

+    Bool	solid = TRUE;

+    DrawablePtr	drawable = &pWin->drawable;

+

+#ifdef ROOTLESS

+    if(!drawable || drawable->type == UNDRAWABLE_WINDOW)

+	return;

+

+    if(IsFramedWindow(pWin)) {

+        RootlessStartDrawing(pWin);

+        RootlessDamageRegion(pWin, prgn);

+    

+        if(pWin->backgroundState == ParentRelative) {

+            if((what == PW_BACKGROUND) || 

+               (what == PW_BORDER && !pWin->borderIsPixel))

+                RootlessSetPixmapOfAncestors(pWin);

+        }

+    }

+#endif

+    

+    if (what == PW_BACKGROUND)

+    {

+	while (pWin->backgroundState == ParentRelative)

+	    pWin = pWin->parent;

+

+	draw_x_off = drawable->x;

+	draw_y_off = drawable->y;

+

+	tile_x_off = pWin->drawable.x - draw_x_off;

+	tile_y_off = pWin->drawable.y - draw_y_off;

+	fill = pWin->background;

+	switch (pWin->backgroundState) {

+	case None:

+	    return;

+	case BackgroundPixmap:

+	    solid = FALSE;

+	    break;

+	}

+    }

+    else

+    {

+	PixmapPtr   pixmap;

+

+	tile_x_off = drawable->x;

+	tile_y_off = drawable->y;

+	

+	/* servers without pixmaps draw their own borders */

+	if (!pScreen->GetWindowPixmap)

+	    return;

+	pixmap = (*pScreen->GetWindowPixmap) ((WindowPtr) drawable);

+	drawable = &pixmap->drawable;

+#ifdef COMPOSITE

+	draw_x_off = pixmap->screen_x;

+	draw_y_off = pixmap->screen_y;

+	tile_x_off -= draw_x_off;

+	tile_y_off -= draw_y_off;

+#else

+	draw_x_off = 0;

+	draw_y_off = 0;

+#endif

+	fill = pWin->border;

+	solid = pWin->borderIsPixel;

+    }

+    

+    gcval[0].val = GXcopy;

+    gcmask = GCFunction;

+

+#ifdef ROOTLESS_SAFEALPHA

+/* Bit mask for alpha channel with a particular number of bits per

+ * pixel. Note that we only care for 32bpp data. Mac OS X uses planar

+ * alpha for 16bpp.

+ */

+#define RootlessAlphaMask(bpp) ((bpp) == 32 ? 0xFF000000 : 0)

+#endif

+    

+    if (solid)

+    {

+#ifdef ROOTLESS_SAFEALPHA

+	gcval[1].val = fill.pixel | RootlessAlphaMask(pWin->drawable.bitsPerPixel);

+#else

+	gcval[1].val = fill.pixel;

+#endif

+	gcval[2].val  = FillSolid;

+	gcmask |= GCForeground | GCFillStyle;

+    }

+    else

+    {

+	int c=1;

+#ifdef ROOTLESS_SAFEALPHA

+	gcval[c++].val = ((CARD32)-1) & ~RootlessAlphaMask(pWin->drawable.bitsPerPixel);

+	gcmask |= GCPlaneMask;

+#endif

+	gcval[c++].val = FillTiled;

+	gcval[c++].ptr = (pointer)fill.pixmap;

+	gcval[c++].val = tile_x_off;

+	gcval[c++].val = tile_y_off;

+	gcmask |= GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin;

+    }

+

+    prect = malloc(REGION_NUM_RECTS(prgn) * sizeof(xRectangle));

+    if (!prect)

+	return;

+

+    pGC = GetScratchGC(drawable->depth, drawable->pScreen);

+    if (!pGC)

+    {

+	free(prect);

+	return;

+    }

+    

+    ChangeGC (NullClient, pGC, gcmask, gcval);

+    ValidateGC (drawable, pGC);

+

+    numRects = REGION_NUM_RECTS(prgn);

+    pbox = REGION_RECTS(prgn);

+    for (i= numRects; --i >= 0; pbox++, prect++)

+    {

+	prect->x = pbox->x1 - draw_x_off;

+	prect->y = pbox->y1 - draw_y_off;

+	prect->width = pbox->x2 - pbox->x1;

+	prect->height = pbox->y2 - pbox->y1;

+    }

+    prect -= numRects;

+    (*pGC->ops->PolyFillRect)(drawable, pGC, numRects, prect);

+    free(prect);

+

+    FreeScratchGC(pGC);

+}

+

+

+/* MICLEARDRAWABLE -- sets the entire drawable to the background color of

+ * the GC.  Useful when we have a scratch drawable and need to initialize 

+ * it. */

+void

+miClearDrawable(DrawablePtr pDraw, GCPtr pGC)

+{

+    ChangeGCVal fg, bg;

+    xRectangle rect;

+

+    fg.val = pGC->fgPixel;

+    bg.val = pGC->bgPixel;

+    rect.x = 0;

+    rect.y = 0;

+    rect.width = pDraw->width;

+    rect.height = pDraw->height;

+    ChangeGC(NullClient, pGC, GCForeground, &bg);

+    ValidateGC(pDraw, pGC);

+    (*pGC->ops->PolyFillRect)(pDraw, pGC, 1, &rect);

+    ChangeGC(NullClient, pGC, GCForeground, &fg);

+    ValidateGC(pDraw, pGC);

+}

diff --git a/xorg-server/mi/mifillarc.c b/xorg-server/mi/mifillarc.c
index c22baf54c..dd0a7b91d 100644
--- a/xorg-server/mi/mifillarc.c
+++ b/xorg-server/mi/mifillarc.c
@@ -1,798 +1,798 @@
-/************************************************************
-
-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.
-
-Author:  Bob Scheifler, MIT X Consortium
-
-********************************************************/
-
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <math.h>
-#include <X11/X.h>
-#include <X11/Xprotostr.h>
-#include "regionstr.h"
-#include "gcstruct.h"
-#include "pixmapstr.h"
-#include "mifpoly.h"
-#include "mi.h"
-#include "mifillarc.h"
-
-#define QUADRANT (90 * 64)
-#define HALFCIRCLE (180 * 64)
-#define QUADRANT3 (270 * 64)
-
-#ifndef M_PI
-#define M_PI	3.14159265358979323846
-#endif
-
-#define Dsin(d)	sin((double)d*(M_PI/11520.0))
-#define Dcos(d)	cos((double)d*(M_PI/11520.0))
-
-void
-miFillArcSetup(xArc *arc, miFillArcRec *info)
-{
-    info->y = arc->height >> 1;
-    info->dy = arc->height & 1;
-    info->yorg = arc->y + info->y;
-    info->dx = arc->width & 1;
-    info->xorg = arc->x + (arc->width >> 1) + info->dx;
-    info->dx = 1 - info->dx;
-    if (arc->width == arc->height)
-    {
-	/* (2x - 2xorg)^2 = d^2 - (2y - 2yorg)^2 */
-	/* even: xorg = yorg = 0   odd:  xorg = .5, yorg = -.5 */
-	info->ym = 8;
-	info->xm = 8;
-	info->yk = info->y << 3;
-	if (!info->dx)
-	{
-	    info->xk = 0;
-	    info->e = -1;
-	}
-	else
-	{
-	    info->y++;
-	    info->yk += 4;
-	    info->xk = -4;
-	    info->e = - (info->y << 3);
-	}
-    }
-    else
-    {
-	/* h^2 * (2x - 2xorg)^2 = w^2 * h^2 - w^2 * (2y - 2yorg)^2 */
-	/* even: xorg = yorg = 0   odd:  xorg = .5, yorg = -.5 */
-	info->ym = (arc->width * arc->width) << 3;
-	info->xm = (arc->height * arc->height) << 3;
-	info->yk = info->y * info->ym;
-	if (!info->dy)
-	    info->yk -= info->ym >> 1;
-	if (!info->dx)
-	{
-	    info->xk = 0;
-	    info->e = - (info->xm >> 3);
-	}
-	else
-	{
-	    info->y++;
-	    info->yk += info->ym;
-	    info->xk = -(info->xm >> 1);
-	    info->e = info->xk - info->yk;
-	}
-    }
-}
-
-static void
-miFillArcDSetup(xArc *arc, miFillArcDRec *info)
-{
-    /* h^2 * (2x - 2xorg)^2 = w^2 * h^2 - w^2 * (2y - 2yorg)^2 */
-    /* even: xorg = yorg = 0   odd:  xorg = .5, yorg = -.5 */
-    info->y = arc->height >> 1;
-    info->dy = arc->height & 1;
-    info->yorg = arc->y + info->y;
-    info->dx = arc->width & 1;
-    info->xorg = arc->x + (arc->width >> 1) + info->dx;
-    info->dx = 1 - info->dx;
-    info->ym = ((double)arc->width) * (arc->width * 8);
-    info->xm = ((double)arc->height) * (arc->height * 8);
-    info->yk = info->y * info->ym;
-    if (!info->dy)
-	info->yk -= info->ym / 2.0;
-    if (!info->dx)
-    {
-	info->xk = 0;
-	info->e = - (info->xm / 8.0);
-    }
-    else
-    {
-	info->y++;
-	info->yk += info->ym;
-	info->xk = -info->xm / 2.0;
-	info->e = info->xk - info->yk;
-    }
-}
-
-static void
-miGetArcEdge(
-	     xArc *arc,
-	     miSliceEdgePtr edge,
-	     int k,
-	     Bool top, 
-	     Bool left )
-{
-    int xady, y;
-
-    y = arc->height >> 1;
-    if (!(arc->width & 1))
-	y++;
-    if (!top)
-    {
-	y = -y;
-	if (arc->height & 1)
-	    y--;
-    }
-    xady = k + y * edge->dx;
-    if (xady <= 0)
-	edge->x = - ((-xady) / edge->dy + 1);
-    else
-	edge->x = (xady - 1) / edge->dy;
-    edge->e = xady - edge->x * edge->dy;
-    if ((top && (edge->dx < 0)) || (!top && (edge->dx > 0)))
-	edge->e = edge->dy - edge->e + 1;
-    if (left)
-	edge->x++;
-    edge->x += arc->x + (arc->width >> 1);
-    if (edge->dx > 0)
-    {
-	edge->deltax = 1;
-	edge->stepx = edge->dx / edge->dy;
-	edge->dx = edge->dx % edge->dy;
-    }
-    else
-    {
-	edge->deltax = -1;
-	edge->stepx = - ((-edge->dx) / edge->dy);
-	edge->dx = (-edge->dx) % edge->dy;
-    }
-    if (!top)
-    {
-	edge->deltax = -edge->deltax;
-	edge->stepx = -edge->stepx;
-    }
-}
-
-static void
-miEllipseAngleToSlope (int angle, int width, int height, int *dxp, int *dyp,
-		       double *d_dxp, double *d_dyp)
-{
-    int	    dx, dy;
-    double  d_dx, d_dy, scale;
-    Bool    negative_dx, negative_dy;
-
-    switch (angle) {
-    case 0:
-	*dxp = -1;
-	*dyp = 0;
-	if (d_dxp) {
-	    *d_dxp = width / 2.0;
-	    *d_dyp = 0;
-	}
-	break;
-    case QUADRANT:
-	*dxp = 0;
-	*dyp = 1;
-	if (d_dxp) {
-	    *d_dxp = 0;
-	    *d_dyp = - height / 2.0;
-	}
-	break;
-    case HALFCIRCLE:
-	*dxp = 1;
-	*dyp = 0;
-	if (d_dxp) {
-	    *d_dxp = - width / 2.0;
-	    *d_dyp = 0;
-	}
-	break;
-    case QUADRANT3:
-	*dxp = 0;
-	*dyp = -1;
-	if (d_dxp) {
-	    *d_dxp = 0;
-	    *d_dyp = height / 2.0;
-	}
-	break;
-    default:
-	d_dx = Dcos(angle) * width;
-	d_dy = Dsin(angle) * height;
-	if (d_dxp) {
-	    *d_dxp = d_dx / 2.0;
-	    *d_dyp = - d_dy / 2.0;
-	}
-	negative_dx = FALSE;
-	if (d_dx < 0.0)
-	{
-	    d_dx = -d_dx;
-	    negative_dx = TRUE;
-	}
-	negative_dy = FALSE;
-	if (d_dy < 0.0)
-	{
-	    d_dy = -d_dy;
-	    negative_dy = TRUE;
-	}
-	scale = d_dx;
-	if (d_dy > d_dx)
-	    scale = d_dy;
-	dx = floor ((d_dx * 32768) / scale + 0.5);
-	if (negative_dx)
-	    dx = -dx;
-	*dxp = dx;
-	dy = floor ((d_dy * 32768) / scale + 0.5);
-	if (negative_dy)
-	    dy = -dy;
-	*dyp = dy;
-	break;
-    }
-}
-
-static void
-miGetPieEdge(
-	     xArc *arc,
-	     int angle,
-	     miSliceEdgePtr edge,
-	     Bool top, 
-	     Bool left )
-{
-    int k;
-    int	dx, dy;
-
-    miEllipseAngleToSlope (angle, arc->width, arc->height, &dx, &dy, 0, 0);
-
-    if (dy == 0)
-    {
-	edge->x = left ? -65536 : 65536;
-	edge->stepx = 0;
-	edge->e = 0;
-	edge->dx = -1;
-	return;
-    }
-    if (dx == 0)
-    {
-	edge->x = arc->x + (arc->width >> 1);
-	if (left && (arc->width & 1))
-	    edge->x++;
-	else if (!left && !(arc->width & 1))
-	    edge->x--;
-	edge->stepx = 0;
-	edge->e = 0;
-	edge->dx = -1;
-	return;
-    }
-    if (dy < 0) {
-	dx = -dx;
-	dy = -dy;
-    }
-    k = (arc->height & 1) ? dx : 0;
-    if (arc->width & 1)
-	k += dy;
-    edge->dx = dx << 1;
-    edge->dy = dy << 1;
-    miGetArcEdge(arc, edge, k, top, left);
-}
-
-void
-miFillArcSliceSetup(xArc *arc, miArcSliceRec *slice, GCPtr pGC)
-{
-    int angle1, angle2;
-
-    angle1 = arc->angle1;
-    if (arc->angle2 < 0)
-    {
-	angle2 = angle1;
-	angle1 += arc->angle2;
-    }
-    else
-	angle2 = angle1 + arc->angle2;
-    while (angle1 < 0)
-	angle1 += FULLCIRCLE;
-    while (angle1 >= FULLCIRCLE)
-	angle1 -= FULLCIRCLE;
-    while (angle2 < 0)
-	angle2 += FULLCIRCLE;
-    while (angle2 >= FULLCIRCLE)
-	angle2 -= FULLCIRCLE;
-    slice->min_top_y = 0;
-    slice->max_top_y = arc->height >> 1;
-    slice->min_bot_y = 1 - (arc->height & 1);
-    slice->max_bot_y = slice->max_top_y - 1;
-    slice->flip_top = FALSE;
-    slice->flip_bot = FALSE;
-    if (pGC->arcMode == ArcPieSlice)
-    {
-	slice->edge1_top = (angle1 < HALFCIRCLE);
-	slice->edge2_top = (angle2 <= HALFCIRCLE);
-	if ((angle2 == 0) || (angle1 == HALFCIRCLE))
-	{
-	    if (angle2 ? slice->edge2_top : slice->edge1_top)
-		slice->min_top_y = slice->min_bot_y;
-	    else
-		slice->min_top_y = arc->height;
-	    slice->min_bot_y = 0;
-	}
-	else if ((angle1 == 0) || (angle2 == HALFCIRCLE))
-	{
-	    slice->min_top_y = slice->min_bot_y;
-	    if (angle1 ? slice->edge1_top : slice->edge2_top)
-		slice->min_bot_y = arc->height;
-	    else
-		slice->min_bot_y = 0;
-	}
-	else if (slice->edge1_top == slice->edge2_top)
-	{
-	    if (angle2 < angle1)
-	    {
-		slice->flip_top = slice->edge1_top;
-		slice->flip_bot = !slice->edge1_top;
-	    }
-	    else if (slice->edge1_top)
-	    {
-		slice->min_top_y = 1;
-		slice->min_bot_y = arc->height;
-	    }
-	    else
-	    {
-		slice->min_bot_y = 0;
-		slice->min_top_y = arc->height;
-	    }
-	}
-	miGetPieEdge(arc, angle1, &slice->edge1,
-		     slice->edge1_top, !slice->edge1_top);
-	miGetPieEdge(arc, angle2, &slice->edge2,
-		     slice->edge2_top, slice->edge2_top);
-    }
-    else
-    {
-	double w2, h2, x1, y1, x2, y2, dx, dy, scale;
-	int signdx, signdy, y, k;
-	Bool isInt1 = TRUE, isInt2 = TRUE;
-
-	w2 = (double)arc->width / 2.0;
-	h2 = (double)arc->height / 2.0;
-	if ((angle1 == 0) || (angle1 == HALFCIRCLE))
-	{
-	    x1 = angle1 ? -w2 : w2;
-	    y1 = 0.0;
-	}
-	else if ((angle1 == QUADRANT) || (angle1 == QUADRANT3))
-	{
-	    x1 = 0.0;
-	    y1 = (angle1 == QUADRANT) ? h2 : -h2;
-	}
-	else
-	{
-	    isInt1 = FALSE;
-	    x1 = Dcos(angle1) * w2;
-	    y1 = Dsin(angle1) * h2;
-	}
-	if ((angle2 == 0) || (angle2 == HALFCIRCLE))
-	{
-	    x2 = angle2 ? -w2 : w2;
-	    y2 = 0.0;
-	}
-	else if ((angle2 == QUADRANT) || (angle2 == QUADRANT3))
-	{
-	    x2 = 0.0;
-	    y2 = (angle2 == QUADRANT) ? h2 : -h2;
-	}
-	else
-	{
-	    isInt2 = FALSE;
-	    x2 = Dcos(angle2) * w2;
-	    y2 = Dsin(angle2) * h2;
-	}
-	dx = x2 - x1;
-	dy = y2 - y1;
-	if (arc->height & 1)
-	{
-	    y1 -= 0.5;
-	    y2 -= 0.5;
-	}
-	if (arc->width & 1)
-	{
-	    x1 += 0.5;
-	    x2 += 0.5;
-	}
-	if (dy < 0.0)
-	{
-	    dy = -dy;
-	    signdy = -1;
-	}
-	else
-	    signdy = 1;
-	if (dx < 0.0)
-	{
-	    dx = -dx;
-	    signdx = -1;
-	}
-	else
-	    signdx = 1;
-	if (isInt1 && isInt2)
-	{
-	    slice->edge1.dx = dx * 2;
-	    slice->edge1.dy = dy * 2;
-	}
-	else
-	{
-	    scale = (dx > dy) ? dx : dy;
-	    slice->edge1.dx = floor((dx * 32768) / scale + .5);
-	    slice->edge1.dy = floor((dy * 32768) / scale + .5);
-	}
-	if (!slice->edge1.dy)
-	{
-	    if (signdx < 0)
-	    {
-		y = floor(y1 + 1.0);
-		if (y >= 0)
-		{
-		    slice->min_top_y = y;
-		    slice->min_bot_y = arc->height;
-		}
-		else
-		{
-		    slice->max_bot_y = -y - (arc->height & 1);
-		}
-	    }
-	    else
-	    {
-		y = floor(y1);
-		if (y >= 0)
-		    slice->max_top_y = y;
-		else
-		{
-		    slice->min_top_y = arc->height;
-		    slice->min_bot_y = -y - (arc->height & 1);
-		}
-	    }
-	    slice->edge1_top = TRUE;
-	    slice->edge1.x = 65536;
-	    slice->edge1.stepx = 0;
-	    slice->edge1.e = 0;
-	    slice->edge1.dx = -1;
-	    slice->edge2 = slice->edge1;
-	    slice->edge2_top = FALSE;
-	}
-	else if (!slice->edge1.dx)
-	{
-	    if (signdy < 0)
-		x1 -= 1.0;
-	    slice->edge1.x = ceil(x1);
-	    slice->edge1_top = signdy < 0;
-	    slice->edge1.x += arc->x + (arc->width >> 1);
-	    slice->edge1.stepx = 0;
-	    slice->edge1.e = 0;
-	    slice->edge1.dx = -1;
-	    slice->edge2_top = !slice->edge1_top;
-	    slice->edge2 = slice->edge1;
-	}
-	else
-	{
-	    if (signdx < 0)
-		slice->edge1.dx = -slice->edge1.dx;
-	    if (signdy < 0)
-		slice->edge1.dx = -slice->edge1.dx;
-	    k = ceil(((x1 + x2) * slice->edge1.dy - (y1 + y2) * slice->edge1.dx) / 2.0);
-	    slice->edge2.dx = slice->edge1.dx;
-	    slice->edge2.dy = slice->edge1.dy;
-	    slice->edge1_top = signdy < 0;
-	    slice->edge2_top = !slice->edge1_top;
-	    miGetArcEdge(arc, &slice->edge1, k,
-			 slice->edge1_top, !slice->edge1_top);
-	    miGetArcEdge(arc, &slice->edge2, k,
-			 slice->edge2_top, slice->edge2_top);
-	}
-    }
-}
-
-#define ADDSPANS() \
-    pts->x = xorg - x; \
-    pts->y = yorg - y; \
-    *wids = slw; \
-    pts++; \
-    wids++; \
-    if (miFillArcLower(slw)) \
-    { \
-	pts->x = xorg - x; \
-	pts->y = yorg + y + dy; \
-	pts++; \
-	*wids++ = slw; \
-    }
-
-static void
-miFillEllipseI(
-	       DrawablePtr pDraw,
-	       GCPtr pGC,
-	       xArc *arc )
-{
-    int x, y, e;
-    int yk, xk, ym, xm, dx, dy, xorg, yorg;
-    int slw;
-    miFillArcRec info;
-    DDXPointPtr points;
-    DDXPointPtr pts;
-    int *widths;
-    int *wids;
-
-    points = xalloc(sizeof(DDXPointRec) * arc->height);
-    if (!points)
-	return;
-    widths = xalloc(sizeof(int) * arc->height);
-    if (!widths)
-    {
-	xfree(points);
-	return;
-    }
-    miFillArcSetup(arc, &info);
-    MIFILLARCSETUP();
-    if (pGC->miTranslate)
-    {
-	xorg += pDraw->x;
-	yorg += pDraw->y;
-    }
-    pts = points;
-    wids = widths;
-    while (y > 0)
-    {
-	MIFILLARCSTEP(slw);
-	ADDSPANS();
-    }
-    (*pGC->ops->FillSpans)(pDraw, pGC, pts - points, points, widths, FALSE);
-    xfree(widths);
-    xfree(points);
-}
-
-static void
-miFillEllipseD(
-	       DrawablePtr pDraw,
-	       GCPtr pGC,
-	       xArc *arc )
-{
-    int x, y;
-    int xorg, yorg, dx, dy, slw;
-    double e, yk, xk, ym, xm;
-    miFillArcDRec info;
-    DDXPointPtr points;
-    DDXPointPtr pts;
-    int *widths;
-    int *wids;
-
-    points = xalloc(sizeof(DDXPointRec) * arc->height);
-    if (!points)
-	return;
-    widths = xalloc(sizeof(int) * arc->height);
-    if (!widths)
-    {
-	xfree(points);
-	return;
-    }
-    miFillArcDSetup(arc, &info);
-    MIFILLARCSETUP();
-    if (pGC->miTranslate)
-    {
-	xorg += pDraw->x;
-	yorg += pDraw->y;
-    }
-    pts = points;
-    wids = widths;
-    while (y > 0)
-    {
-	MIFILLARCSTEP(slw);
-	ADDSPANS();
-    }
-    (*pGC->ops->FillSpans)(pDraw, pGC, pts - points, points, widths, FALSE);
-    xfree(widths);
-    xfree(points);
-}
-
-#define ADDSPAN(l,r) \
-    if (r >= l) \
-    { \
-	pts->x = l; \
-	pts->y = ya; \
-	pts++; \
-	*wids++ = r - l + 1; \
-    }
-
-#define ADDSLICESPANS(flip) \
-    if (!flip) \
-    { \
-	ADDSPAN(xl, xr); \
-    } \
-    else \
-    { \
-	xc = xorg - x; \
-	ADDSPAN(xc, xr); \
-	xc += slw - 1; \
-	ADDSPAN(xl, xc); \
-    }
-
-static void
-miFillArcSliceI(
-		DrawablePtr pDraw,
-		GCPtr pGC,
-		xArc *arc )
-{
-    int yk, xk, ym, xm, dx, dy, xorg, yorg, slw;
-    int x, y, e;
-    miFillArcRec info;
-    miArcSliceRec slice;
-    int ya, xl, xr, xc;
-    DDXPointPtr points;
-    DDXPointPtr pts;
-    int *widths;
-    int *wids;
-
-    miFillArcSetup(arc, &info);
-    miFillArcSliceSetup(arc, &slice, pGC);
-    MIFILLARCSETUP();
-    slw = arc->height;
-    if (slice.flip_top || slice.flip_bot)
-	slw += (arc->height >> 1) + 1;
-    points = xalloc(sizeof(DDXPointRec) * slw);
-    if (!points)
-	return;
-    widths = xalloc(sizeof(int) * slw);
-    if (!widths)
-    {
-	xfree(points);
-	return;
-    }
-    if (pGC->miTranslate)
-    {
-	xorg += pDraw->x;
-	yorg += pDraw->y;
-	slice.edge1.x += pDraw->x;
-	slice.edge2.x += pDraw->x;
-    }
-    pts = points;
-    wids = widths;
-    while (y > 0)
-    {
-	MIFILLARCSTEP(slw);
-	MIARCSLICESTEP(slice.edge1);
-	MIARCSLICESTEP(slice.edge2);
-	if (miFillSliceUpper(slice))
-	{
-	    ya = yorg - y;
-	    MIARCSLICEUPPER(xl, xr, slice, slw);
-	    ADDSLICESPANS(slice.flip_top);
-	}
-	if (miFillSliceLower(slice))
-	{
-	    ya = yorg + y + dy;
-	    MIARCSLICELOWER(xl, xr, slice, slw);
-	    ADDSLICESPANS(slice.flip_bot);
-	}
-    }
-    (*pGC->ops->FillSpans)(pDraw, pGC, pts - points, points, widths, FALSE);
-    xfree(widths);
-    xfree(points);
-}
-
-static void
-miFillArcSliceD(
-		DrawablePtr pDraw,
-		GCPtr pGC,
-		xArc *arc )
-{
-    int x, y;
-    int dx, dy, xorg, yorg, slw;
-    double e, yk, xk, ym, xm;
-    miFillArcDRec info;
-    miArcSliceRec slice;
-    int ya, xl, xr, xc;
-    DDXPointPtr points;
-    DDXPointPtr pts;
-    int *widths;
-    int *wids;
-
-    miFillArcDSetup(arc, &info);
-    miFillArcSliceSetup(arc, &slice, pGC);
-    MIFILLARCSETUP();
-    slw = arc->height;
-    if (slice.flip_top || slice.flip_bot)
-	slw += (arc->height >> 1) + 1;
-    points = xalloc(sizeof(DDXPointRec) * slw);
-    if (!points)
-	return;
-    widths = xalloc(sizeof(int) * slw);
-    if (!widths)
-    {
-	xfree(points);
-	return;
-    }
-    if (pGC->miTranslate)
-    {
-	xorg += pDraw->x;
-	yorg += pDraw->y;
-	slice.edge1.x += pDraw->x;
-	slice.edge2.x += pDraw->x;
-    }
-    pts = points;
-    wids = widths;
-    while (y > 0)
-    {
-	MIFILLARCSTEP(slw);
-	MIARCSLICESTEP(slice.edge1);
-	MIARCSLICESTEP(slice.edge2);
-	if (miFillSliceUpper(slice))
-	{
-	    ya = yorg - y;
-	    MIARCSLICEUPPER(xl, xr, slice, slw);
-	    ADDSLICESPANS(slice.flip_top);
-	}
-	if (miFillSliceLower(slice))
-	{
-	    ya = yorg + y + dy;
-	    MIARCSLICELOWER(xl, xr, slice, slw);
-	    ADDSLICESPANS(slice.flip_bot);
-	}
-    }
-    (*pGC->ops->FillSpans)(pDraw, pGC, pts - points, points, widths, FALSE);
-    xfree(widths);
-    xfree(points);
-}
-
-/* MIPOLYFILLARC -- The public entry for the PolyFillArc request.
- * Since we don't have to worry about overlapping segments, we can just
- * fill each arc as it comes.
- */
-void
-miPolyFillArc(DrawablePtr pDraw, GCPtr pGC, int narcs, xArc *parcs)
-{
-    int i;
-    xArc *arc;
-
-    for(i = narcs, arc = parcs; --i >= 0; arc++)
-    {
-	if (miFillArcEmpty(arc))
-	    continue;
-	if ((arc->angle2 >= FULLCIRCLE) || (arc->angle2 <= -FULLCIRCLE))
-	{
-	    if (miCanFillArc(arc))
-		miFillEllipseI(pDraw, pGC, arc);
-	    else
-		miFillEllipseD(pDraw, pGC, arc);
-	}
-	else
-	{
-	    if (miCanFillArc(arc))
-		miFillArcSliceI(pDraw, pGC, arc);
-	    else
-		miFillArcSliceD(pDraw, pGC, arc);
-	}
-    }
-}
+/************************************************************

+

+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.

+

+Author:  Bob Scheifler, MIT X Consortium

+

+********************************************************/

+

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <math.h>

+#include <X11/X.h>

+#include <X11/Xprotostr.h>

+#include "regionstr.h"

+#include "gcstruct.h"

+#include "pixmapstr.h"

+#include "mifpoly.h"

+#include "mi.h"

+#include "mifillarc.h"

+

+#define QUADRANT (90 * 64)

+#define HALFCIRCLE (180 * 64)

+#define QUADRANT3 (270 * 64)

+

+#ifndef M_PI

+#define M_PI	3.14159265358979323846

+#endif

+

+#define Dsin(d)	sin((double)d*(M_PI/11520.0))

+#define Dcos(d)	cos((double)d*(M_PI/11520.0))

+

+void

+miFillArcSetup(xArc *arc, miFillArcRec *info)

+{

+    info->y = arc->height >> 1;

+    info->dy = arc->height & 1;

+    info->yorg = arc->y + info->y;

+    info->dx = arc->width & 1;

+    info->xorg = arc->x + (arc->width >> 1) + info->dx;

+    info->dx = 1 - info->dx;

+    if (arc->width == arc->height)

+    {

+	/* (2x - 2xorg)^2 = d^2 - (2y - 2yorg)^2 */

+	/* even: xorg = yorg = 0   odd:  xorg = .5, yorg = -.5 */

+	info->ym = 8;

+	info->xm = 8;

+	info->yk = info->y << 3;

+	if (!info->dx)

+	{

+	    info->xk = 0;

+	    info->e = -1;

+	}

+	else

+	{

+	    info->y++;

+	    info->yk += 4;

+	    info->xk = -4;

+	    info->e = - (info->y << 3);

+	}

+    }

+    else

+    {

+	/* h^2 * (2x - 2xorg)^2 = w^2 * h^2 - w^2 * (2y - 2yorg)^2 */

+	/* even: xorg = yorg = 0   odd:  xorg = .5, yorg = -.5 */

+	info->ym = (arc->width * arc->width) << 3;

+	info->xm = (arc->height * arc->height) << 3;

+	info->yk = info->y * info->ym;

+	if (!info->dy)

+	    info->yk -= info->ym >> 1;

+	if (!info->dx)

+	{

+	    info->xk = 0;

+	    info->e = - (info->xm >> 3);

+	}

+	else

+	{

+	    info->y++;

+	    info->yk += info->ym;

+	    info->xk = -(info->xm >> 1);

+	    info->e = info->xk - info->yk;

+	}

+    }

+}

+

+static void

+miFillArcDSetup(xArc *arc, miFillArcDRec *info)

+{

+    /* h^2 * (2x - 2xorg)^2 = w^2 * h^2 - w^2 * (2y - 2yorg)^2 */

+    /* even: xorg = yorg = 0   odd:  xorg = .5, yorg = -.5 */

+    info->y = arc->height >> 1;

+    info->dy = arc->height & 1;

+    info->yorg = arc->y + info->y;

+    info->dx = arc->width & 1;

+    info->xorg = arc->x + (arc->width >> 1) + info->dx;

+    info->dx = 1 - info->dx;

+    info->ym = ((double)arc->width) * (arc->width * 8);

+    info->xm = ((double)arc->height) * (arc->height * 8);

+    info->yk = info->y * info->ym;

+    if (!info->dy)

+	info->yk -= info->ym / 2.0;

+    if (!info->dx)

+    {

+	info->xk = 0;

+	info->e = - (info->xm / 8.0);

+    }

+    else

+    {

+	info->y++;

+	info->yk += info->ym;

+	info->xk = -info->xm / 2.0;

+	info->e = info->xk - info->yk;

+    }

+}

+

+static void

+miGetArcEdge(

+	     xArc *arc,

+	     miSliceEdgePtr edge,

+	     int k,

+	     Bool top, 

+	     Bool left )

+{

+    int xady, y;

+

+    y = arc->height >> 1;

+    if (!(arc->width & 1))

+	y++;

+    if (!top)

+    {

+	y = -y;

+	if (arc->height & 1)

+	    y--;

+    }

+    xady = k + y * edge->dx;

+    if (xady <= 0)

+	edge->x = - ((-xady) / edge->dy + 1);

+    else

+	edge->x = (xady - 1) / edge->dy;

+    edge->e = xady - edge->x * edge->dy;

+    if ((top && (edge->dx < 0)) || (!top && (edge->dx > 0)))

+	edge->e = edge->dy - edge->e + 1;

+    if (left)

+	edge->x++;

+    edge->x += arc->x + (arc->width >> 1);

+    if (edge->dx > 0)

+    {

+	edge->deltax = 1;

+	edge->stepx = edge->dx / edge->dy;

+	edge->dx = edge->dx % edge->dy;

+    }

+    else

+    {

+	edge->deltax = -1;

+	edge->stepx = - ((-edge->dx) / edge->dy);

+	edge->dx = (-edge->dx) % edge->dy;

+    }

+    if (!top)

+    {

+	edge->deltax = -edge->deltax;

+	edge->stepx = -edge->stepx;

+    }

+}

+

+static void

+miEllipseAngleToSlope (int angle, int width, int height, int *dxp, int *dyp,

+		       double *d_dxp, double *d_dyp)

+{

+    int	    dx, dy;

+    double  d_dx, d_dy, scale;

+    Bool    negative_dx, negative_dy;

+

+    switch (angle) {

+    case 0:

+	*dxp = -1;

+	*dyp = 0;

+	if (d_dxp) {

+	    *d_dxp = width / 2.0;

+	    *d_dyp = 0;

+	}

+	break;

+    case QUADRANT:

+	*dxp = 0;

+	*dyp = 1;

+	if (d_dxp) {

+	    *d_dxp = 0;

+	    *d_dyp = - height / 2.0;

+	}

+	break;

+    case HALFCIRCLE:

+	*dxp = 1;

+	*dyp = 0;

+	if (d_dxp) {

+	    *d_dxp = - width / 2.0;

+	    *d_dyp = 0;

+	}

+	break;

+    case QUADRANT3:

+	*dxp = 0;

+	*dyp = -1;

+	if (d_dxp) {

+	    *d_dxp = 0;

+	    *d_dyp = height / 2.0;

+	}

+	break;

+    default:

+	d_dx = Dcos(angle) * width;

+	d_dy = Dsin(angle) * height;

+	if (d_dxp) {

+	    *d_dxp = d_dx / 2.0;

+	    *d_dyp = - d_dy / 2.0;

+	}

+	negative_dx = FALSE;

+	if (d_dx < 0.0)

+	{

+	    d_dx = -d_dx;

+	    negative_dx = TRUE;

+	}

+	negative_dy = FALSE;

+	if (d_dy < 0.0)

+	{

+	    d_dy = -d_dy;

+	    negative_dy = TRUE;

+	}

+	scale = d_dx;

+	if (d_dy > d_dx)

+	    scale = d_dy;

+	dx = floor ((d_dx * 32768) / scale + 0.5);

+	if (negative_dx)

+	    dx = -dx;

+	*dxp = dx;

+	dy = floor ((d_dy * 32768) / scale + 0.5);

+	if (negative_dy)

+	    dy = -dy;

+	*dyp = dy;

+	break;

+    }

+}

+

+static void

+miGetPieEdge(

+	     xArc *arc,

+	     int angle,

+	     miSliceEdgePtr edge,

+	     Bool top, 

+	     Bool left )

+{

+    int k;

+    int	dx, dy;

+

+    miEllipseAngleToSlope (angle, arc->width, arc->height, &dx, &dy, 0, 0);

+

+    if (dy == 0)

+    {

+	edge->x = left ? -65536 : 65536;

+	edge->stepx = 0;

+	edge->e = 0;

+	edge->dx = -1;

+	return;

+    }

+    if (dx == 0)

+    {

+	edge->x = arc->x + (arc->width >> 1);

+	if (left && (arc->width & 1))

+	    edge->x++;

+	else if (!left && !(arc->width & 1))

+	    edge->x--;

+	edge->stepx = 0;

+	edge->e = 0;

+	edge->dx = -1;

+	return;

+    }

+    if (dy < 0) {

+	dx = -dx;

+	dy = -dy;

+    }

+    k = (arc->height & 1) ? dx : 0;

+    if (arc->width & 1)

+	k += dy;

+    edge->dx = dx << 1;

+    edge->dy = dy << 1;

+    miGetArcEdge(arc, edge, k, top, left);

+}

+

+void

+miFillArcSliceSetup(xArc *arc, miArcSliceRec *slice, GCPtr pGC)

+{

+    int angle1, angle2;

+

+    angle1 = arc->angle1;

+    if (arc->angle2 < 0)

+    {

+	angle2 = angle1;

+	angle1 += arc->angle2;

+    }

+    else

+	angle2 = angle1 + arc->angle2;

+    while (angle1 < 0)

+	angle1 += FULLCIRCLE;

+    while (angle1 >= FULLCIRCLE)

+	angle1 -= FULLCIRCLE;

+    while (angle2 < 0)

+	angle2 += FULLCIRCLE;

+    while (angle2 >= FULLCIRCLE)

+	angle2 -= FULLCIRCLE;

+    slice->min_top_y = 0;

+    slice->max_top_y = arc->height >> 1;

+    slice->min_bot_y = 1 - (arc->height & 1);

+    slice->max_bot_y = slice->max_top_y - 1;

+    slice->flip_top = FALSE;

+    slice->flip_bot = FALSE;

+    if (pGC->arcMode == ArcPieSlice)

+    {

+	slice->edge1_top = (angle1 < HALFCIRCLE);

+	slice->edge2_top = (angle2 <= HALFCIRCLE);

+	if ((angle2 == 0) || (angle1 == HALFCIRCLE))

+	{

+	    if (angle2 ? slice->edge2_top : slice->edge1_top)

+		slice->min_top_y = slice->min_bot_y;

+	    else

+		slice->min_top_y = arc->height;

+	    slice->min_bot_y = 0;

+	}

+	else if ((angle1 == 0) || (angle2 == HALFCIRCLE))

+	{

+	    slice->min_top_y = slice->min_bot_y;

+	    if (angle1 ? slice->edge1_top : slice->edge2_top)

+		slice->min_bot_y = arc->height;

+	    else

+		slice->min_bot_y = 0;

+	}

+	else if (slice->edge1_top == slice->edge2_top)

+	{

+	    if (angle2 < angle1)

+	    {

+		slice->flip_top = slice->edge1_top;

+		slice->flip_bot = !slice->edge1_top;

+	    }

+	    else if (slice->edge1_top)

+	    {

+		slice->min_top_y = 1;

+		slice->min_bot_y = arc->height;

+	    }

+	    else

+	    {

+		slice->min_bot_y = 0;

+		slice->min_top_y = arc->height;

+	    }

+	}

+	miGetPieEdge(arc, angle1, &slice->edge1,

+		     slice->edge1_top, !slice->edge1_top);

+	miGetPieEdge(arc, angle2, &slice->edge2,

+		     slice->edge2_top, slice->edge2_top);

+    }

+    else

+    {

+	double w2, h2, x1, y1, x2, y2, dx, dy, scale;

+	int signdx, signdy, y, k;

+	Bool isInt1 = TRUE, isInt2 = TRUE;

+

+	w2 = (double)arc->width / 2.0;

+	h2 = (double)arc->height / 2.0;

+	if ((angle1 == 0) || (angle1 == HALFCIRCLE))

+	{

+	    x1 = angle1 ? -w2 : w2;

+	    y1 = 0.0;

+	}

+	else if ((angle1 == QUADRANT) || (angle1 == QUADRANT3))

+	{

+	    x1 = 0.0;

+	    y1 = (angle1 == QUADRANT) ? h2 : -h2;

+	}

+	else

+	{

+	    isInt1 = FALSE;

+	    x1 = Dcos(angle1) * w2;

+	    y1 = Dsin(angle1) * h2;

+	}

+	if ((angle2 == 0) || (angle2 == HALFCIRCLE))

+	{

+	    x2 = angle2 ? -w2 : w2;

+	    y2 = 0.0;

+	}

+	else if ((angle2 == QUADRANT) || (angle2 == QUADRANT3))

+	{

+	    x2 = 0.0;

+	    y2 = (angle2 == QUADRANT) ? h2 : -h2;

+	}

+	else

+	{

+	    isInt2 = FALSE;

+	    x2 = Dcos(angle2) * w2;

+	    y2 = Dsin(angle2) * h2;

+	}

+	dx = x2 - x1;

+	dy = y2 - y1;

+	if (arc->height & 1)

+	{

+	    y1 -= 0.5;

+	    y2 -= 0.5;

+	}

+	if (arc->width & 1)

+	{

+	    x1 += 0.5;

+	    x2 += 0.5;

+	}

+	if (dy < 0.0)

+	{

+	    dy = -dy;

+	    signdy = -1;

+	}

+	else

+	    signdy = 1;

+	if (dx < 0.0)

+	{

+	    dx = -dx;

+	    signdx = -1;

+	}

+	else

+	    signdx = 1;

+	if (isInt1 && isInt2)

+	{

+	    slice->edge1.dx = dx * 2;

+	    slice->edge1.dy = dy * 2;

+	}

+	else

+	{

+	    scale = (dx > dy) ? dx : dy;

+	    slice->edge1.dx = floor((dx * 32768) / scale + .5);

+	    slice->edge1.dy = floor((dy * 32768) / scale + .5);

+	}

+	if (!slice->edge1.dy)

+	{

+	    if (signdx < 0)

+	    {

+		y = floor(y1 + 1.0);

+		if (y >= 0)

+		{

+		    slice->min_top_y = y;

+		    slice->min_bot_y = arc->height;

+		}

+		else

+		{

+		    slice->max_bot_y = -y - (arc->height & 1);

+		}

+	    }

+	    else

+	    {

+		y = floor(y1);

+		if (y >= 0)

+		    slice->max_top_y = y;

+		else

+		{

+		    slice->min_top_y = arc->height;

+		    slice->min_bot_y = -y - (arc->height & 1);

+		}

+	    }

+	    slice->edge1_top = TRUE;

+	    slice->edge1.x = 65536;

+	    slice->edge1.stepx = 0;

+	    slice->edge1.e = 0;

+	    slice->edge1.dx = -1;

+	    slice->edge2 = slice->edge1;

+	    slice->edge2_top = FALSE;

+	}

+	else if (!slice->edge1.dx)

+	{

+	    if (signdy < 0)

+		x1 -= 1.0;

+	    slice->edge1.x = ceil(x1);

+	    slice->edge1_top = signdy < 0;

+	    slice->edge1.x += arc->x + (arc->width >> 1);

+	    slice->edge1.stepx = 0;

+	    slice->edge1.e = 0;

+	    slice->edge1.dx = -1;

+	    slice->edge2_top = !slice->edge1_top;

+	    slice->edge2 = slice->edge1;

+	}

+	else

+	{

+	    if (signdx < 0)

+		slice->edge1.dx = -slice->edge1.dx;

+	    if (signdy < 0)

+		slice->edge1.dx = -slice->edge1.dx;

+	    k = ceil(((x1 + x2) * slice->edge1.dy - (y1 + y2) * slice->edge1.dx) / 2.0);

+	    slice->edge2.dx = slice->edge1.dx;

+	    slice->edge2.dy = slice->edge1.dy;

+	    slice->edge1_top = signdy < 0;

+	    slice->edge2_top = !slice->edge1_top;

+	    miGetArcEdge(arc, &slice->edge1, k,

+			 slice->edge1_top, !slice->edge1_top);

+	    miGetArcEdge(arc, &slice->edge2, k,

+			 slice->edge2_top, slice->edge2_top);

+	}

+    }

+}

+

+#define ADDSPANS() \

+    pts->x = xorg - x; \

+    pts->y = yorg - y; \

+    *wids = slw; \

+    pts++; \

+    wids++; \

+    if (miFillArcLower(slw)) \

+    { \

+	pts->x = xorg - x; \

+	pts->y = yorg + y + dy; \

+	pts++; \

+	*wids++ = slw; \

+    }

+

+static void

+miFillEllipseI(

+	       DrawablePtr pDraw,

+	       GCPtr pGC,

+	       xArc *arc )

+{

+    int x, y, e;

+    int yk, xk, ym, xm, dx, dy, xorg, yorg;

+    int slw;

+    miFillArcRec info;

+    DDXPointPtr points;

+    DDXPointPtr pts;

+    int *widths;

+    int *wids;

+

+    points = malloc(sizeof(DDXPointRec) * arc->height);

+    if (!points)

+	return;

+    widths = malloc(sizeof(int) * arc->height);

+    if (!widths)

+    {

+	free(points);

+	return;

+    }

+    miFillArcSetup(arc, &info);

+    MIFILLARCSETUP();

+    if (pGC->miTranslate)

+    {

+	xorg += pDraw->x;

+	yorg += pDraw->y;

+    }

+    pts = points;

+    wids = widths;

+    while (y > 0)

+    {

+	MIFILLARCSTEP(slw);

+	ADDSPANS();

+    }

+    (*pGC->ops->FillSpans)(pDraw, pGC, pts - points, points, widths, FALSE);

+    free(widths);

+    free(points);

+}

+

+static void

+miFillEllipseD(

+	       DrawablePtr pDraw,

+	       GCPtr pGC,

+	       xArc *arc )

+{

+    int x, y;

+    int xorg, yorg, dx, dy, slw;

+    double e, yk, xk, ym, xm;

+    miFillArcDRec info;

+    DDXPointPtr points;

+    DDXPointPtr pts;

+    int *widths;

+    int *wids;

+

+    points = malloc(sizeof(DDXPointRec) * arc->height);

+    if (!points)

+	return;

+    widths = malloc(sizeof(int) * arc->height);

+    if (!widths)

+    {

+	free(points);

+	return;

+    }

+    miFillArcDSetup(arc, &info);

+    MIFILLARCSETUP();

+    if (pGC->miTranslate)

+    {

+	xorg += pDraw->x;

+	yorg += pDraw->y;

+    }

+    pts = points;

+    wids = widths;

+    while (y > 0)

+    {

+	MIFILLARCSTEP(slw);

+	ADDSPANS();

+    }

+    (*pGC->ops->FillSpans)(pDraw, pGC, pts - points, points, widths, FALSE);

+    free(widths);

+    free(points);

+}

+

+#define ADDSPAN(l,r) \

+    if (r >= l) \

+    { \

+	pts->x = l; \

+	pts->y = ya; \

+	pts++; \

+	*wids++ = r - l + 1; \

+    }

+

+#define ADDSLICESPANS(flip) \

+    if (!flip) \

+    { \

+	ADDSPAN(xl, xr); \

+    } \

+    else \

+    { \

+	xc = xorg - x; \

+	ADDSPAN(xc, xr); \

+	xc += slw - 1; \

+	ADDSPAN(xl, xc); \

+    }

+

+static void

+miFillArcSliceI(

+		DrawablePtr pDraw,

+		GCPtr pGC,

+		xArc *arc )

+{

+    int yk, xk, ym, xm, dx, dy, xorg, yorg, slw;

+    int x, y, e;

+    miFillArcRec info;

+    miArcSliceRec slice;

+    int ya, xl, xr, xc;

+    DDXPointPtr points;

+    DDXPointPtr pts;

+    int *widths;

+    int *wids;

+

+    miFillArcSetup(arc, &info);

+    miFillArcSliceSetup(arc, &slice, pGC);

+    MIFILLARCSETUP();

+    slw = arc->height;

+    if (slice.flip_top || slice.flip_bot)

+	slw += (arc->height >> 1) + 1;

+    points = malloc(sizeof(DDXPointRec) * slw);

+    if (!points)

+	return;

+    widths = malloc(sizeof(int) * slw);

+    if (!widths)

+    {

+	free(points);

+	return;

+    }

+    if (pGC->miTranslate)

+    {

+	xorg += pDraw->x;

+	yorg += pDraw->y;

+	slice.edge1.x += pDraw->x;

+	slice.edge2.x += pDraw->x;

+    }

+    pts = points;

+    wids = widths;

+    while (y > 0)

+    {

+	MIFILLARCSTEP(slw);

+	MIARCSLICESTEP(slice.edge1);

+	MIARCSLICESTEP(slice.edge2);

+	if (miFillSliceUpper(slice))

+	{

+	    ya = yorg - y;

+	    MIARCSLICEUPPER(xl, xr, slice, slw);

+	    ADDSLICESPANS(slice.flip_top);

+	}

+	if (miFillSliceLower(slice))

+	{

+	    ya = yorg + y + dy;

+	    MIARCSLICELOWER(xl, xr, slice, slw);

+	    ADDSLICESPANS(slice.flip_bot);

+	}

+    }

+    (*pGC->ops->FillSpans)(pDraw, pGC, pts - points, points, widths, FALSE);

+    free(widths);

+    free(points);

+}

+

+static void

+miFillArcSliceD(

+		DrawablePtr pDraw,

+		GCPtr pGC,

+		xArc *arc )

+{

+    int x, y;

+    int dx, dy, xorg, yorg, slw;

+    double e, yk, xk, ym, xm;

+    miFillArcDRec info;

+    miArcSliceRec slice;

+    int ya, xl, xr, xc;

+    DDXPointPtr points;

+    DDXPointPtr pts;

+    int *widths;

+    int *wids;

+

+    miFillArcDSetup(arc, &info);

+    miFillArcSliceSetup(arc, &slice, pGC);

+    MIFILLARCSETUP();

+    slw = arc->height;

+    if (slice.flip_top || slice.flip_bot)

+	slw += (arc->height >> 1) + 1;

+    points = malloc(sizeof(DDXPointRec) * slw);

+    if (!points)

+	return;

+    widths = malloc(sizeof(int) * slw);

+    if (!widths)

+    {

+	free(points);

+	return;

+    }

+    if (pGC->miTranslate)

+    {

+	xorg += pDraw->x;

+	yorg += pDraw->y;

+	slice.edge1.x += pDraw->x;

+	slice.edge2.x += pDraw->x;

+    }

+    pts = points;

+    wids = widths;

+    while (y > 0)

+    {

+	MIFILLARCSTEP(slw);

+	MIARCSLICESTEP(slice.edge1);

+	MIARCSLICESTEP(slice.edge2);

+	if (miFillSliceUpper(slice))

+	{

+	    ya = yorg - y;

+	    MIARCSLICEUPPER(xl, xr, slice, slw);

+	    ADDSLICESPANS(slice.flip_top);

+	}

+	if (miFillSliceLower(slice))

+	{

+	    ya = yorg + y + dy;

+	    MIARCSLICELOWER(xl, xr, slice, slw);

+	    ADDSLICESPANS(slice.flip_bot);

+	}

+    }

+    (*pGC->ops->FillSpans)(pDraw, pGC, pts - points, points, widths, FALSE);

+    free(widths);

+    free(points);

+}

+

+/* MIPOLYFILLARC -- The public entry for the PolyFillArc request.

+ * Since we don't have to worry about overlapping segments, we can just

+ * fill each arc as it comes.

+ */

+void

+miPolyFillArc(DrawablePtr pDraw, GCPtr pGC, int narcs, xArc *parcs)

+{

+    int i;

+    xArc *arc;

+

+    for(i = narcs, arc = parcs; --i >= 0; arc++)

+    {

+	if (miFillArcEmpty(arc))

+	    continue;

+	if ((arc->angle2 >= FULLCIRCLE) || (arc->angle2 <= -FULLCIRCLE))

+	{

+	    if (miCanFillArc(arc))

+		miFillEllipseI(pDraw, pGC, arc);

+	    else

+		miFillEllipseD(pDraw, pGC, arc);

+	}

+	else

+	{

+	    if (miCanFillArc(arc))

+		miFillArcSliceI(pDraw, pGC, arc);

+	    else

+		miFillArcSliceD(pDraw, pGC, arc);

+	}

+    }

+}

diff --git a/xorg-server/mi/mifillrct.c b/xorg-server/mi/mifillrct.c
index 6e9979099..a97e5ced3 100644
--- a/xorg-server/mi/mifillrct.c
+++ b/xorg-server/mi/mifillrct.c
@@ -1,143 +1,143 @@
-/***********************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xprotostr.h>
-#include "gcstruct.h"
-#include "windowstr.h"
-#include "pixmap.h"
-#include "mi.h"
-#include "misc.h"
-
-/* mi rectangles
-   written by newman, with debts to all and sundry
-*/
-
-/* MIPOLYFILLRECT -- public entry for PolyFillRect request
- * very straight forward: translate rectangles if necessary
- * then call FillSpans to fill each rectangle.  We let FillSpans worry about
- * clipping to the destination
- */
-void
-miPolyFillRect(
-    DrawablePtr	pDrawable,
-    GCPtr	pGC,
-    int		nrectFill,	/* number of rectangles to fill */
-    xRectangle	*prectInit	/* Pointer to first rectangle to fill */
-    )
-{
-    int i;
-    int	height;
-    int	width;
-    xRectangle *prect; 
-    int	xorg;
-    int	yorg;
-    int	maxheight;
-    DDXPointPtr	pptFirst;
-    DDXPointPtr ppt;
-    int	*pwFirst;
-    int *pw;
-
-    if (pGC->miTranslate)
-    {
-	xorg = pDrawable->x;
-	yorg = pDrawable->y;
-        prect = prectInit;
-        maxheight = 0;
-        for (i = 0; i<nrectFill; i++, prect++)
-        {
-	    prect->x += xorg;
-	    prect->y += yorg;
-	    maxheight = max(maxheight, prect->height);
-        }
-    }
-    else
-    {
-        prect = prectInit;
-        maxheight = 0;
-        for (i = 0; i<nrectFill; i++, prect++)
-	    maxheight = max(maxheight, prect->height);
-    }
-
-    pptFirst = xalloc(maxheight * sizeof(DDXPointRec));
-    pwFirst = xalloc(maxheight * sizeof(int));
-    if(!pptFirst || !pwFirst)
-    {
-	if (pwFirst) xfree(pwFirst);
-	if (pptFirst) xfree(pptFirst);
-	return;
-    }
-
-    prect = prectInit;
-    while(nrectFill--)
-    {
-	ppt = pptFirst;
-	pw = pwFirst;
-	height = prect->height;
-	width = prect->width;
-	xorg = prect->x;
-	yorg = prect->y;
-	while(height--)
-	{
-	    *pw++ = width;
-	    ppt->x = xorg;
-	    ppt->y = yorg;
-	    ppt++;
-	    yorg++;
-	}
-	(* pGC->ops->FillSpans)(pDrawable, pGC, 
-			   prect->height, pptFirst, pwFirst,
-			   1);
-	prect++;
-    }
-    xfree(pwFirst);
-    xfree(pptFirst);
-}
+/***********************************************************

+

+Copyright 1987, 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.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+******************************************************************/

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <X11/X.h>

+#include <X11/Xprotostr.h>

+#include "gcstruct.h"

+#include "windowstr.h"

+#include "pixmap.h"

+#include "mi.h"

+#include "misc.h"

+

+/* mi rectangles

+   written by newman, with debts to all and sundry

+*/

+

+/* MIPOLYFILLRECT -- public entry for PolyFillRect request

+ * very straight forward: translate rectangles if necessary

+ * then call FillSpans to fill each rectangle.  We let FillSpans worry about

+ * clipping to the destination

+ */

+void

+miPolyFillRect(

+    DrawablePtr	pDrawable,

+    GCPtr	pGC,

+    int		nrectFill,	/* number of rectangles to fill */

+    xRectangle	*prectInit	/* Pointer to first rectangle to fill */

+    )

+{

+    int i;

+    int	height;

+    int	width;

+    xRectangle *prect; 

+    int	xorg;

+    int	yorg;

+    int	maxheight;

+    DDXPointPtr	pptFirst;

+    DDXPointPtr ppt;

+    int	*pwFirst;

+    int *pw;

+

+    if (pGC->miTranslate)

+    {

+	xorg = pDrawable->x;

+	yorg = pDrawable->y;

+        prect = prectInit;

+        maxheight = 0;

+        for (i = 0; i<nrectFill; i++, prect++)

+        {

+	    prect->x += xorg;

+	    prect->y += yorg;

+	    maxheight = max(maxheight, prect->height);

+        }

+    }

+    else

+    {

+        prect = prectInit;

+        maxheight = 0;

+        for (i = 0; i<nrectFill; i++, prect++)

+	    maxheight = max(maxheight, prect->height);

+    }

+

+    pptFirst = malloc(maxheight * sizeof(DDXPointRec));

+    pwFirst = malloc(maxheight * sizeof(int));

+    if(!pptFirst || !pwFirst)

+    {

+	if (pwFirst) free(pwFirst);

+	if (pptFirst) free(pptFirst);

+	return;

+    }

+

+    prect = prectInit;

+    while(nrectFill--)

+    {

+	ppt = pptFirst;

+	pw = pwFirst;

+	height = prect->height;

+	width = prect->width;

+	xorg = prect->x;

+	yorg = prect->y;

+	while(height--)

+	{

+	    *pw++ = width;

+	    ppt->x = xorg;

+	    ppt->y = yorg;

+	    ppt++;

+	    yorg++;

+	}

+	(* pGC->ops->FillSpans)(pDrawable, pGC, 

+			   prect->height, pptFirst, pwFirst,

+			   1);

+	prect++;

+    }

+    free(pwFirst);

+    free(pptFirst);

+}

diff --git a/xorg-server/mi/mifpolycon.c b/xorg-server/mi/mifpolycon.c
index 383502f64..8411a1570 100644
--- a/xorg-server/mi/mifpolycon.c
+++ b/xorg-server/mi/mifpolycon.c
@@ -1,280 +1,280 @@
-/***********************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <math.h>
-#include <X11/X.h>
-#include "gcstruct.h"
-#include "windowstr.h"
-#include "pixmapstr.h"
-#include "mifpoly.h"
-
-static int GetFPolyYBounds(SppPointPtr pts, int n, double yFtrans,
-			   int *by, int *ty);
-
-/*
- *	Written by Todd Newman; April. 1987.
- *
- *	Fill a convex polygon.  If the given polygon
- *	is not convex, then the result is undefined.
- *	The algorithm is to order the edges from smallest
- *	y to largest by partitioning the array into a left
- *	edge list and a right edge list.  The algorithm used
- *	to traverse each edge is digital differencing analyzer
- *	line algorithm with y as the major axis. There's some funny linear
- *	interpolation involved because of the subpixel postioning.
- */
-void
-miFillSppPoly(
-    DrawablePtr		dst,
-    GCPtr		pgc,
-    int			count,          /* number of points */
-    SppPointPtr		ptsIn,          /* the points */
-    int			xTrans, int yTrans,	/* Translate each point by this */
-    double		xFtrans,
-    double		yFtrans                 /* translate before conversion
-						   by this amount.  This provides
-						   a mechanism to match rounding
-						   errors with any shape that must
-						   meet the polygon exactly.
-						 */
-    )
-{
-    double		xl = 0.0, xr = 0.0,	/* x vals of left and right edges */
-          		ml = 0.0,      	/* left edge slope */
-          		mr = 0.0,       /* right edge slope */
-          		dy,             /* delta y */
-    			i;              /* loop counter */
-    int			y,              /* current scanline */
-    			j,
-    			imin,           /* index of vertex with smallest y */
-    			ymin,           /* y-extents of polygon */
-    			ymax,
-    			*width,
-    			*FirstWidth,    /* output buffer */
-    	 		*Marked;	/* set if this vertex has been used */
-    int			left, right,	/* indices to first endpoints */
-    			nextleft,
-                 	nextright;	/* indices to second endpoints */
-    DDXPointPtr 	ptsOut,
-    			FirstPoint;	/* output buffer */
-
-    if (pgc->miTranslate)
-    {
-	xTrans += dst->x;
-	yTrans += dst->y;
-    }
-
-    imin = GetFPolyYBounds(ptsIn, count, yFtrans, &ymin, &ymax);
-
-    y = ymax - ymin + 1;
-    if ((count < 3) || (y <= 0))
-	return;
-    ptsOut = FirstPoint = xalloc(sizeof(DDXPointRec) * y);
-    width = FirstWidth = xalloc(sizeof(int) * y);
-    Marked = xalloc(sizeof(int) * count);
-
-    if(!ptsOut || !width || !Marked)
-    {
-	if (Marked) xfree(Marked);
-	if (width) xfree(width);
-	if (ptsOut) xfree(ptsOut);
-	return;
-    }
-
-    for(j = 0; j < count; j++)
-	Marked[j] = 0;
-    nextleft = nextright = imin;
-    Marked[imin] = -1;
-    y = ICEIL(ptsIn[nextleft].y + yFtrans);
-
-    /*
-     *  loop through all edges of the polygon
-     */
-    do
-    {
-        /* add a left edge if we need to */
-        if ((y > (ptsIn[nextleft].y + yFtrans) ||
- 	     ISEQUAL(y, ptsIn[nextleft].y + yFtrans)) &&
-	     Marked[nextleft] != 1)
-	{
-	    Marked[nextleft]++;
-            left = nextleft++;
-
-            /* find the next edge, considering the end conditions */
-            if (nextleft >= count)
-                nextleft = 0;
-
-            /* now compute the starting point and slope */
-	    dy = ptsIn[nextleft].y - ptsIn[left].y;
-	    if (dy != 0.0)
-	    { 
-		ml = (ptsIn[nextleft].x - ptsIn[left].x) / dy;
-		dy = y - (ptsIn[left].y + yFtrans);
-		xl = (ptsIn[left].x + xFtrans) + ml * max(dy, 0); 
-	    }
-        }
-
-        /* add a right edge if we need to */
-        if ((y > ptsIn[nextright].y + yFtrans) ||
- 	     (ISEQUAL(y, ptsIn[nextright].y + yFtrans)
-	     && Marked[nextright] != 1))
-	{
-	    Marked[nextright]++;
-            right = nextright--;
-
-            /* find the next edge, considering the end conditions */
-            if (nextright < 0)
-                nextright = count - 1;
-
-            /* now compute the starting point and slope */
-	    dy = ptsIn[nextright].y - ptsIn[right].y;
-	    if (dy != 0.0) 
-	    { 
-		mr = (ptsIn[nextright].x - ptsIn[right].x) / dy;
-		dy = y - (ptsIn[right].y + yFtrans); 
-		xr = (ptsIn[right].x + xFtrans) + mr * max(dy, 0);
-	    }
-        }
-
-
-        /*
-         *  generate scans to fill while we still have
-         *  a right edge as well as a left edge.
-         */
-        i = (min(ptsIn[nextleft].y, ptsIn[nextright].y) + yFtrans) - y;
-
-	if (i < EPSILON)
-	{
-	    if(Marked[nextleft] && Marked[nextright])
-	    {
-	        /* Arrgh, we're trapped! (no more points) 
-	         * Out, we've got to get out of here before this decadence saps
-	         * our will completely! */
-	        break;
-	    }
-	    continue;
-	}
-	else
-	{
-		j = (int) i;
-		if(!j)
-		    j++;
-	}
-        while (j > 0) 
-        {
-	    int cxl, cxr;
-
-            ptsOut->y = (y) + yTrans;
-
-	    cxl = ICEIL(xl);
-	    cxr = ICEIL(xr);
-            /* reverse the edges if necessary */
-            if (xl < xr) 
-            {
-                *(width++) = cxr - cxl;
-                (ptsOut++)->x = cxl + xTrans;
-            }
-            else 
-            {
-                *(width++) = cxl - cxr;
-                (ptsOut++)->x = cxr + xTrans;
-            }
-            y++;
-
-            /* increment down the edges */
-	    xl += ml;
-	    xr += mr;
-	    j--;
-        }
-    }  while (y <= ymax);
-
-    /* Finally, fill the spans we've collected */
-    (*pgc->ops->FillSpans)(dst, pgc, 
-		      ptsOut-FirstPoint, FirstPoint, FirstWidth, 1);
-    xfree(Marked);
-    xfree(FirstWidth);
-    xfree(FirstPoint);
-}
-
-
-/* Find the index of the point with the smallest y.also return the
- * smallest and largest y */
-static
-int
-GetFPolyYBounds(
-    SppPointPtr			pts,
-    int 			n,
-    double			yFtrans,
-    int 			*by,
-    int				*ty)
-{
-    SppPointPtr			ptMin;
-    double 			ymin, ymax;
-    SppPointPtr			ptsStart = pts;
-
-    ptMin = pts;
-    ymin = ymax = (pts++)->y;
-
-    while (--n > 0) {
-        if (pts->y < ymin)
-	{
-            ptMin = pts;
-            ymin = pts->y;
-        }
-	if(pts->y > ymax)
-            ymax = pts->y;
-
-        pts++;
-    }
-
-    *by = ICEIL(ymin + yFtrans);
-    *ty = ICEIL(ymax + yFtrans - 1);
-    return(ptMin-ptsStart);
-}
+/***********************************************************

+

+Copyright 1987, 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.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+******************************************************************/

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <math.h>

+#include <X11/X.h>

+#include "gcstruct.h"

+#include "windowstr.h"

+#include "pixmapstr.h"

+#include "mifpoly.h"

+

+static int GetFPolyYBounds(SppPointPtr pts, int n, double yFtrans,

+			   int *by, int *ty);

+

+/*

+ *	Written by Todd Newman; April. 1987.

+ *

+ *	Fill a convex polygon.  If the given polygon

+ *	is not convex, then the result is undefined.

+ *	The algorithm is to order the edges from smallest

+ *	y to largest by partitioning the array into a left

+ *	edge list and a right edge list.  The algorithm used

+ *	to traverse each edge is digital differencing analyzer

+ *	line algorithm with y as the major axis. There's some funny linear

+ *	interpolation involved because of the subpixel postioning.

+ */

+void

+miFillSppPoly(

+    DrawablePtr		dst,

+    GCPtr		pgc,

+    int			count,          /* number of points */

+    SppPointPtr		ptsIn,          /* the points */

+    int			xTrans, int yTrans,	/* Translate each point by this */

+    double		xFtrans,

+    double		yFtrans                 /* translate before conversion

+						   by this amount.  This provides

+						   a mechanism to match rounding

+						   errors with any shape that must

+						   meet the polygon exactly.

+						 */

+    )

+{

+    double		xl = 0.0, xr = 0.0,	/* x vals of left and right edges */

+          		ml = 0.0,      	/* left edge slope */

+          		mr = 0.0,       /* right edge slope */

+          		dy,             /* delta y */

+    			i;              /* loop counter */

+    int			y,              /* current scanline */

+    			j,

+    			imin,           /* index of vertex with smallest y */

+    			ymin,           /* y-extents of polygon */

+    			ymax,

+    			*width,

+    			*FirstWidth,    /* output buffer */

+    	 		*Marked;	/* set if this vertex has been used */

+    int			left, right,	/* indices to first endpoints */

+    			nextleft,

+                 	nextright;	/* indices to second endpoints */

+    DDXPointPtr 	ptsOut,

+    			FirstPoint;	/* output buffer */

+

+    if (pgc->miTranslate)

+    {

+	xTrans += dst->x;

+	yTrans += dst->y;

+    }

+

+    imin = GetFPolyYBounds(ptsIn, count, yFtrans, &ymin, &ymax);

+

+    y = ymax - ymin + 1;

+    if ((count < 3) || (y <= 0))

+	return;

+    ptsOut = FirstPoint = malloc(sizeof(DDXPointRec) * y);

+    width = FirstWidth = malloc(sizeof(int) * y);

+    Marked = malloc(sizeof(int) * count);

+

+    if(!ptsOut || !width || !Marked)

+    {

+	if (Marked) free(Marked);

+	if (width) free(width);

+	if (ptsOut) free(ptsOut);

+	return;

+    }

+

+    for(j = 0; j < count; j++)

+	Marked[j] = 0;

+    nextleft = nextright = imin;

+    Marked[imin] = -1;

+    y = ICEIL(ptsIn[nextleft].y + yFtrans);

+

+    /*

+     *  loop through all edges of the polygon

+     */

+    do

+    {

+        /* add a left edge if we need to */

+        if ((y > (ptsIn[nextleft].y + yFtrans) ||

+ 	     ISEQUAL(y, ptsIn[nextleft].y + yFtrans)) &&

+	     Marked[nextleft] != 1)

+	{

+	    Marked[nextleft]++;

+            left = nextleft++;

+

+            /* find the next edge, considering the end conditions */

+            if (nextleft >= count)

+                nextleft = 0;

+

+            /* now compute the starting point and slope */

+	    dy = ptsIn[nextleft].y - ptsIn[left].y;

+	    if (dy != 0.0)

+	    { 

+		ml = (ptsIn[nextleft].x - ptsIn[left].x) / dy;

+		dy = y - (ptsIn[left].y + yFtrans);

+		xl = (ptsIn[left].x + xFtrans) + ml * max(dy, 0); 

+	    }

+        }

+

+        /* add a right edge if we need to */

+        if ((y > ptsIn[nextright].y + yFtrans) ||

+ 	     (ISEQUAL(y, ptsIn[nextright].y + yFtrans)

+	     && Marked[nextright] != 1))

+	{

+	    Marked[nextright]++;

+            right = nextright--;

+

+            /* find the next edge, considering the end conditions */

+            if (nextright < 0)

+                nextright = count - 1;

+

+            /* now compute the starting point and slope */

+	    dy = ptsIn[nextright].y - ptsIn[right].y;

+	    if (dy != 0.0) 

+	    { 

+		mr = (ptsIn[nextright].x - ptsIn[right].x) / dy;

+		dy = y - (ptsIn[right].y + yFtrans); 

+		xr = (ptsIn[right].x + xFtrans) + mr * max(dy, 0);

+	    }

+        }

+

+

+        /*

+         *  generate scans to fill while we still have

+         *  a right edge as well as a left edge.

+         */

+        i = (min(ptsIn[nextleft].y, ptsIn[nextright].y) + yFtrans) - y;

+

+	if (i < EPSILON)

+	{

+	    if(Marked[nextleft] && Marked[nextright])

+	    {

+	        /* Arrgh, we're trapped! (no more points) 

+	         * Out, we've got to get out of here before this decadence saps

+	         * our will completely! */

+	        break;

+	    }

+	    continue;

+	}

+	else

+	{

+		j = (int) i;

+		if(!j)

+		    j++;

+	}

+        while (j > 0) 

+        {

+	    int cxl, cxr;

+

+            ptsOut->y = (y) + yTrans;

+

+	    cxl = ICEIL(xl);

+	    cxr = ICEIL(xr);

+            /* reverse the edges if necessary */

+            if (xl < xr) 

+            {

+                *(width++) = cxr - cxl;

+                (ptsOut++)->x = cxl + xTrans;

+            }

+            else 

+            {

+                *(width++) = cxl - cxr;

+                (ptsOut++)->x = cxr + xTrans;

+            }

+            y++;

+

+            /* increment down the edges */

+	    xl += ml;

+	    xr += mr;

+	    j--;

+        }

+    }  while (y <= ymax);

+

+    /* Finally, fill the spans we've collected */

+    (*pgc->ops->FillSpans)(dst, pgc, 

+		      ptsOut-FirstPoint, FirstPoint, FirstWidth, 1);

+    free(Marked);

+    free(FirstWidth);

+    free(FirstPoint);

+}

+

+

+/* Find the index of the point with the smallest y.also return the

+ * smallest and largest y */

+static

+int

+GetFPolyYBounds(

+    SppPointPtr			pts,

+    int 			n,

+    double			yFtrans,

+    int 			*by,

+    int				*ty)

+{

+    SppPointPtr			ptMin;

+    double 			ymin, ymax;

+    SppPointPtr			ptsStart = pts;

+

+    ptMin = pts;

+    ymin = ymax = (pts++)->y;

+

+    while (--n > 0) {

+        if (pts->y < ymin)

+	{

+            ptMin = pts;

+            ymin = pts->y;

+        }

+	if(pts->y > ymax)

+            ymax = pts->y;

+

+        pts++;

+    }

+

+    *by = ICEIL(ymin + yFtrans);

+    *ty = ICEIL(ymax + yFtrans - 1);

+    return(ptMin-ptsStart);

+}

diff --git a/xorg-server/mi/migc.c b/xorg-server/mi/migc.c
index a797099cd..e42f29810 100644
--- a/xorg-server/mi/migc.c
+++ b/xorg-server/mi/migc.c
@@ -1,255 +1,255 @@
-/*
-
-Copyright 1993, 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 "scrnintstr.h"
-#include "gcstruct.h"
-#include "pixmapstr.h"
-#include "windowstr.h"
-#include "migc.h"
-
-/* ARGSUSED */
-void
-miChangeGC(GCPtr pGC, unsigned long mask)
-{
-    return;
-}
-
-void
-miDestroyGC(GCPtr pGC)
-{
-    if (pGC->pRotatedPixmap)
-	(*pGC->pScreen->DestroyPixmap) (pGC->pRotatedPixmap);
-    if (pGC->freeCompClip)
-	REGION_DESTROY(pGC->pScreen, pGC->pCompositeClip);
-}
-
-void
-miDestroyClip(GCPtr pGC)
-{
-    if (pGC->clientClipType == CT_NONE)
-	return;
-    else if (pGC->clientClipType == CT_PIXMAP)
-    {
-	(*pGC->pScreen->DestroyPixmap) ((PixmapPtr) (pGC->clientClip));
-    }
-    else
-    {
-	/*
-	 * we know we'll never have a list of rectangles, since ChangeClip
-	 * immediately turns them into a region
-	 */
-	REGION_DESTROY(pGC->pScreen, pGC->clientClip);
-    }
-    pGC->clientClip = NULL;
-    pGC->clientClipType = CT_NONE;
-}
-
-void
-miChangeClip( GCPtr pGC, int type, pointer pvalue, int nrects)
-{
-    (*pGC->funcs->DestroyClip) (pGC);
-    if (type == CT_PIXMAP)
-    {
-	/* convert the pixmap to a region */
-	pGC->clientClip = (pointer) BITMAP_TO_REGION(pGC->pScreen,
-							(PixmapPtr) pvalue);
-	(*pGC->pScreen->DestroyPixmap) (pvalue);
-    }
-    else if (type == CT_REGION)
-    {
-	/* stuff the region in the GC */
-	pGC->clientClip = pvalue;
-    }
-    else if (type != CT_NONE)
-    {
-	pGC->clientClip = (pointer) RECTS_TO_REGION(pGC->pScreen, nrects,
-						      (xRectangle *) pvalue,
-								    type);
-	xfree(pvalue);
-    }
-    pGC->clientClipType = (type != CT_NONE && pGC->clientClip) ? CT_REGION : CT_NONE;
-    pGC->stateChanges |= GCClipMask;
-}
-
-void
-miCopyClip(GCPtr pgcDst, GCPtr pgcSrc)
-{
-    RegionPtr       prgnNew;
-
-    switch (pgcSrc->clientClipType)
-    {
-      case CT_PIXMAP:
-	((PixmapPtr) pgcSrc->clientClip)->refcnt++;
-	/* Fall through !! */
-      case CT_NONE:
-	(*pgcDst->funcs->ChangeClip) (pgcDst, (int) pgcSrc->clientClipType,
-				   pgcSrc->clientClip, 0);
-	break;
-      case CT_REGION:
-	prgnNew = REGION_CREATE(pgcSrc->pScreen, NULL, 1);
-	REGION_COPY(pgcDst->pScreen, prgnNew,
-					(RegionPtr) (pgcSrc->clientClip));
-	(*pgcDst->funcs->ChangeClip) (pgcDst, CT_REGION, (pointer) prgnNew, 0);
-	break;
-    }
-}
-
-/* ARGSUSED */
-void
-miCopyGC(GCPtr pGCSrc, unsigned long changes, GCPtr pGCDst)
-{
-    return;
-}
-
-void
-miComputeCompositeClip( GCPtr pGC, DrawablePtr pDrawable)
-{
-    ScreenPtr       pScreen;
-
-    /* This prevents warnings about pScreen not being used. */
-    pGC->pScreen = pScreen = pGC->pScreen;
-
-    if (pDrawable->type == DRAWABLE_WINDOW)
-    {
-	WindowPtr       pWin = (WindowPtr) pDrawable;
-	RegionPtr       pregWin;
-	Bool            freeTmpClip, freeCompClip;
-
-	if (pGC->subWindowMode == IncludeInferiors)
-	{
-	    pregWin = NotClippedByChildren(pWin);
-	    freeTmpClip = TRUE;
-	}
-	else
-	{
-	    pregWin = &pWin->clipList;
-	    freeTmpClip = FALSE;
-	}
-	freeCompClip = pGC->freeCompClip;
-
-	/*
-	 * if there is no client clip, we can get by with just keeping the
-	 * pointer we got, and remembering whether or not should destroy (or
-	 * maybe re-use) it later.  this way, we avoid unnecessary copying of
-	 * regions.  (this wins especially if many clients clip by children
-	 * and have no client clip.)
-	 */
-	if (pGC->clientClipType == CT_NONE)
-	{
-	    if (freeCompClip)
-		REGION_DESTROY(pScreen, pGC->pCompositeClip);
-	    pGC->pCompositeClip = pregWin;
-	    pGC->freeCompClip = freeTmpClip;
-	}
-	else
-	{
-	    /*
-	     * we need one 'real' region to put into the composite clip. if
-	     * pregWin the current composite clip are real, we can get rid of
-	     * one. if pregWin is real and the current composite clip isn't,
-	     * use pregWin for the composite clip. if the current composite
-	     * clip is real and pregWin isn't, use the current composite
-	     * clip. if neither is real, create a new region.
-	     */
-
-	    REGION_TRANSLATE(pScreen, pGC->clientClip,
-					 pDrawable->x + pGC->clipOrg.x,
-					 pDrawable->y + pGC->clipOrg.y);
-
-	    if (freeCompClip)
-	    {
-		REGION_INTERSECT(pGC->pScreen, pGC->pCompositeClip,
-					    pregWin, pGC->clientClip);
-		if (freeTmpClip)
-		    REGION_DESTROY(pScreen, pregWin);
-	    }
-	    else if (freeTmpClip)
-	    {
-		REGION_INTERSECT(pScreen, pregWin, pregWin, pGC->clientClip);
-		pGC->pCompositeClip = pregWin;
-	    }
-	    else
-	    {
-		pGC->pCompositeClip = REGION_CREATE(pScreen, NullBox, 0);
-		REGION_INTERSECT(pScreen, pGC->pCompositeClip,
-				       pregWin, pGC->clientClip);
-	    }
-	    pGC->freeCompClip = TRUE;
-	    REGION_TRANSLATE(pScreen, pGC->clientClip,
-					 -(pDrawable->x + pGC->clipOrg.x),
-					 -(pDrawable->y + pGC->clipOrg.y));
-	}
-    }	/* end of composite clip for a window */
-    else
-    {
-	BoxRec          pixbounds;
-
-	/* XXX should we translate by drawable.x/y here ? */
-	/* If you want pixmaps in offscreen memory, yes */
-	pixbounds.x1 = pDrawable->x;
-	pixbounds.y1 = pDrawable->y;
-	pixbounds.x2 = pDrawable->x + pDrawable->width;
-	pixbounds.y2 = pDrawable->y + pDrawable->height;
-
-	if (pGC->freeCompClip)
-	{
-	    REGION_RESET(pScreen, pGC->pCompositeClip, &pixbounds);
-	}
-	else
-	{
-	    pGC->freeCompClip = TRUE;
-	    pGC->pCompositeClip = REGION_CREATE(pScreen, &pixbounds, 1);
-	}
-
-	if (pGC->clientClipType == CT_REGION)
-	{
-	    if(pDrawable->x || pDrawable->y) {
-	        REGION_TRANSLATE(pScreen, pGC->clientClip,
-					  pDrawable->x + pGC->clipOrg.x, 
-					  pDrawable->y + pGC->clipOrg.y);
-	        REGION_INTERSECT(pScreen, pGC->pCompositeClip,
-				pGC->pCompositeClip, pGC->clientClip);
-	        REGION_TRANSLATE(pScreen, pGC->clientClip,
-					  -(pDrawable->x + pGC->clipOrg.x), 
-					  -(pDrawable->y + pGC->clipOrg.y));
-	    } else {
-	        REGION_TRANSLATE(pScreen, pGC->pCompositeClip,
-					 -pGC->clipOrg.x, -pGC->clipOrg.y);
-	        REGION_INTERSECT(pScreen, pGC->pCompositeClip,
-				pGC->pCompositeClip, pGC->clientClip);
-	        REGION_TRANSLATE(pScreen, pGC->pCompositeClip,
-					 pGC->clipOrg.x, pGC->clipOrg.y);
-	    }
-	}
-    }	/* end of composite clip for pixmap */
-} /* end miComputeCompositeClip */
+/*

+

+Copyright 1993, 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 "scrnintstr.h"

+#include "gcstruct.h"

+#include "pixmapstr.h"

+#include "windowstr.h"

+#include "migc.h"

+

+/* ARGSUSED */

+void

+miChangeGC(GCPtr pGC, unsigned long mask)

+{

+    return;

+}

+

+void

+miDestroyGC(GCPtr pGC)

+{

+    if (pGC->pRotatedPixmap)

+	(*pGC->pScreen->DestroyPixmap) (pGC->pRotatedPixmap);

+    if (pGC->freeCompClip)

+	REGION_DESTROY(pGC->pScreen, pGC->pCompositeClip);

+}

+

+void

+miDestroyClip(GCPtr pGC)

+{

+    if (pGC->clientClipType == CT_NONE)

+	return;

+    else if (pGC->clientClipType == CT_PIXMAP)

+    {

+	(*pGC->pScreen->DestroyPixmap) ((PixmapPtr) (pGC->clientClip));

+    }

+    else

+    {

+	/*

+	 * we know we'll never have a list of rectangles, since ChangeClip

+	 * immediately turns them into a region

+	 */

+	REGION_DESTROY(pGC->pScreen, pGC->clientClip);

+    }

+    pGC->clientClip = NULL;

+    pGC->clientClipType = CT_NONE;

+}

+

+void

+miChangeClip( GCPtr pGC, int type, pointer pvalue, int nrects)

+{

+    (*pGC->funcs->DestroyClip) (pGC);

+    if (type == CT_PIXMAP)

+    {

+	/* convert the pixmap to a region */

+	pGC->clientClip = (pointer) BITMAP_TO_REGION(pGC->pScreen,

+							(PixmapPtr) pvalue);

+	(*pGC->pScreen->DestroyPixmap) (pvalue);

+    }

+    else if (type == CT_REGION)

+    {

+	/* stuff the region in the GC */

+	pGC->clientClip = pvalue;

+    }

+    else if (type != CT_NONE)

+    {

+	pGC->clientClip = (pointer) RECTS_TO_REGION(pGC->pScreen, nrects,

+						      (xRectangle *) pvalue,

+								    type);

+	free(pvalue);

+    }

+    pGC->clientClipType = (type != CT_NONE && pGC->clientClip) ? CT_REGION : CT_NONE;

+    pGC->stateChanges |= GCClipMask;

+}

+

+void

+miCopyClip(GCPtr pgcDst, GCPtr pgcSrc)

+{

+    RegionPtr       prgnNew;

+

+    switch (pgcSrc->clientClipType)

+    {

+      case CT_PIXMAP:

+	((PixmapPtr) pgcSrc->clientClip)->refcnt++;

+	/* Fall through !! */

+      case CT_NONE:

+	(*pgcDst->funcs->ChangeClip) (pgcDst, (int) pgcSrc->clientClipType,

+				   pgcSrc->clientClip, 0);

+	break;

+      case CT_REGION:

+	prgnNew = REGION_CREATE(pgcSrc->pScreen, NULL, 1);

+	REGION_COPY(pgcDst->pScreen, prgnNew,

+					(RegionPtr) (pgcSrc->clientClip));

+	(*pgcDst->funcs->ChangeClip) (pgcDst, CT_REGION, (pointer) prgnNew, 0);

+	break;

+    }

+}

+

+/* ARGSUSED */

+void

+miCopyGC(GCPtr pGCSrc, unsigned long changes, GCPtr pGCDst)

+{

+    return;

+}

+

+void

+miComputeCompositeClip( GCPtr pGC, DrawablePtr pDrawable)

+{

+    ScreenPtr       pScreen;

+

+    /* This prevents warnings about pScreen not being used. */

+    pGC->pScreen = pScreen = pGC->pScreen;

+

+    if (pDrawable->type == DRAWABLE_WINDOW)

+    {

+	WindowPtr       pWin = (WindowPtr) pDrawable;

+	RegionPtr       pregWin;

+	Bool            freeTmpClip, freeCompClip;

+

+	if (pGC->subWindowMode == IncludeInferiors)

+	{

+	    pregWin = NotClippedByChildren(pWin);

+	    freeTmpClip = TRUE;

+	}

+	else

+	{

+	    pregWin = &pWin->clipList;

+	    freeTmpClip = FALSE;

+	}

+	freeCompClip = pGC->freeCompClip;

+

+	/*

+	 * if there is no client clip, we can get by with just keeping the

+	 * pointer we got, and remembering whether or not should destroy (or

+	 * maybe re-use) it later.  this way, we avoid unnecessary copying of

+	 * regions.  (this wins especially if many clients clip by children

+	 * and have no client clip.)

+	 */

+	if (pGC->clientClipType == CT_NONE)

+	{

+	    if (freeCompClip)

+		REGION_DESTROY(pScreen, pGC->pCompositeClip);

+	    pGC->pCompositeClip = pregWin;

+	    pGC->freeCompClip = freeTmpClip;

+	}

+	else

+	{

+	    /*

+	     * we need one 'real' region to put into the composite clip. if

+	     * pregWin the current composite clip are real, we can get rid of

+	     * one. if pregWin is real and the current composite clip isn't,

+	     * use pregWin for the composite clip. if the current composite

+	     * clip is real and pregWin isn't, use the current composite

+	     * clip. if neither is real, create a new region.

+	     */

+

+	    REGION_TRANSLATE(pScreen, pGC->clientClip,

+					 pDrawable->x + pGC->clipOrg.x,

+					 pDrawable->y + pGC->clipOrg.y);

+

+	    if (freeCompClip)

+	    {

+		REGION_INTERSECT(pGC->pScreen, pGC->pCompositeClip,

+					    pregWin, pGC->clientClip);

+		if (freeTmpClip)

+		    REGION_DESTROY(pScreen, pregWin);

+	    }

+	    else if (freeTmpClip)

+	    {

+		REGION_INTERSECT(pScreen, pregWin, pregWin, pGC->clientClip);

+		pGC->pCompositeClip = pregWin;

+	    }

+	    else

+	    {

+		pGC->pCompositeClip = REGION_CREATE(pScreen, NullBox, 0);

+		REGION_INTERSECT(pScreen, pGC->pCompositeClip,

+				       pregWin, pGC->clientClip);

+	    }

+	    pGC->freeCompClip = TRUE;

+	    REGION_TRANSLATE(pScreen, pGC->clientClip,

+					 -(pDrawable->x + pGC->clipOrg.x),

+					 -(pDrawable->y + pGC->clipOrg.y));

+	}

+    }	/* end of composite clip for a window */

+    else

+    {

+	BoxRec          pixbounds;

+

+	/* XXX should we translate by drawable.x/y here ? */

+	/* If you want pixmaps in offscreen memory, yes */

+	pixbounds.x1 = pDrawable->x;

+	pixbounds.y1 = pDrawable->y;

+	pixbounds.x2 = pDrawable->x + pDrawable->width;

+	pixbounds.y2 = pDrawable->y + pDrawable->height;

+

+	if (pGC->freeCompClip)

+	{

+	    REGION_RESET(pScreen, pGC->pCompositeClip, &pixbounds);

+	}

+	else

+	{

+	    pGC->freeCompClip = TRUE;

+	    pGC->pCompositeClip = REGION_CREATE(pScreen, &pixbounds, 1);

+	}

+

+	if (pGC->clientClipType == CT_REGION)

+	{

+	    if(pDrawable->x || pDrawable->y) {

+	        REGION_TRANSLATE(pScreen, pGC->clientClip,

+					  pDrawable->x + pGC->clipOrg.x, 

+					  pDrawable->y + pGC->clipOrg.y);

+	        REGION_INTERSECT(pScreen, pGC->pCompositeClip,

+				pGC->pCompositeClip, pGC->clientClip);

+	        REGION_TRANSLATE(pScreen, pGC->clientClip,

+					  -(pDrawable->x + pGC->clipOrg.x), 

+					  -(pDrawable->y + pGC->clipOrg.y));

+	    } else {

+	        REGION_TRANSLATE(pScreen, pGC->pCompositeClip,

+					 -pGC->clipOrg.x, -pGC->clipOrg.y);

+	        REGION_INTERSECT(pScreen, pGC->pCompositeClip,

+				pGC->pCompositeClip, pGC->clientClip);

+	        REGION_TRANSLATE(pScreen, pGC->pCompositeClip,

+					 pGC->clipOrg.x, pGC->clipOrg.y);

+	    }

+	}

+    }	/* end of composite clip for pixmap */

+} /* end miComputeCompositeClip */

diff --git a/xorg-server/mi/miglblt.c b/xorg-server/mi/miglblt.c
index bc715aee9..c299fe554 100644
--- a/xorg-server/mi/miglblt.c
+++ b/xorg-server/mi/miglblt.c
@@ -1,258 +1,258 @@
-/***********************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include	<X11/X.h>
-#include	<X11/Xmd.h>
-#include	<X11/Xproto.h>
-#include	"misc.h"
-#include	<X11/fonts/fontstruct.h>
-#include	"dixfontstr.h"
-#include	"gcstruct.h"
-#include	"windowstr.h"
-#include	"scrnintstr.h"
-#include	"pixmap.h"
-#include	"servermd.h"
-#include        "mi.h"
-
-/*
-    machine-independent glyph blt.
-    assumes that glyph bits in snf are written in bytes,
-have same bit order as the server's bitmap format,
-and are byte padded.  this corresponds to the snf distributed
-with the sample server.
-
-    get a scratch GC.
-    in the scratch GC set alu = GXcopy, fg = 1, bg = 0
-    allocate a bitmap big enough to hold the largest glyph in the font
-    validate the scratch gc with the bitmap
-    for each glyph
-	carefully put the bits of the glyph in a buffer,
-	    padded to the server pixmap scanline padding rules
-	fake a call to PutImage from the buffer into the bitmap
-	use the bitmap in a call to PushPixels
-*/
-
-void
-miPolyGlyphBlt(
-    DrawablePtr pDrawable,
-    GC		*pGC,
-    int		x,
-    int		y,
-    unsigned int nglyph,
-    CharInfoPtr *ppci,		/* array of character info */
-    pointer      pglyphBase	/* start of array of glyphs */
-    )
-{
-    int width, height;
-    PixmapPtr pPixmap;
-    int nbyLine;		/* bytes per line of padded pixmap */
-    FontPtr pfont;
-    GCPtr pGCtmp;
-    int i;
-    int j;
-    unsigned char *pbits;	/* buffer for PutImage */
-    unsigned char *pb;		/* temp pointer into buffer */
-    CharInfoPtr pci;		/* currect char info */
-    unsigned char *pglyph;	/* pointer bits in glyph */
-    int gWidth, gHeight;	/* width and height of glyph */
-    int nbyGlyphWidth;		/* bytes per scanline of glyph */
-    int nbyPadGlyph;		/* server padded line of glyph */
-
-    XID gcvals[3];
-
-    if (pGC->miTranslate)
-    {
-	x += pDrawable->x;
-	y += pDrawable->y;
-    }
-
-    pfont = pGC->font;
-    width = FONTMAXBOUNDS(pfont,rightSideBearing) - 
-	    FONTMINBOUNDS(pfont,leftSideBearing);
-    height = FONTMAXBOUNDS(pfont,ascent) +
-	     FONTMAXBOUNDS(pfont,descent);
-
-    pPixmap = (*pDrawable->pScreen->CreatePixmap)(pDrawable->pScreen,
-						  width, height, 1,
-						  CREATE_PIXMAP_USAGE_SCRATCH);
-    if (!pPixmap)
-	return;
-
-    pGCtmp = GetScratchGC(1, pDrawable->pScreen);
-    if (!pGCtmp)
-    {
-	(*pDrawable->pScreen->DestroyPixmap)(pPixmap);
-	return;
-    }
-
-    gcvals[0] = GXcopy;
-    gcvals[1] = 1;
-    gcvals[2] = 0;
-
-    DoChangeGC(pGCtmp, GCFunction|GCForeground|GCBackground, gcvals, 0);
-
-    nbyLine = BitmapBytePad(width);
-    pbits = xalloc(height*nbyLine);
-    if (!pbits)
-    {
-	(*pDrawable->pScreen->DestroyPixmap)(pPixmap);
-	FreeScratchGC(pGCtmp);
-        return;
-    }
-    while(nglyph--)
-    {
-	pci = *ppci++;
-	pglyph = FONTGLYPHBITS(pglyphBase, pci);
-	gWidth = GLYPHWIDTHPIXELS(pci);
-	gHeight = GLYPHHEIGHTPIXELS(pci);
-	if (gWidth && gHeight)
-	{
-	    nbyGlyphWidth = GLYPHWIDTHBYTESPADDED(pci);
-	    nbyPadGlyph = BitmapBytePad(gWidth);
-
-	    if (nbyGlyphWidth == nbyPadGlyph
-#if GLYPHPADBYTES != 4
-	        && (((int) pglyph) & 3) == 0
-#endif
-		)
-	    {
-		pb = pglyph;
-	    }
-	    else
-	    {
-		for (i=0, pb = pbits; i<gHeight; i++, pb = pbits+(i*nbyPadGlyph))
-		    for (j = 0; j < nbyGlyphWidth; j++)
-			*pb++ = *pglyph++;
-		pb = pbits;
-	    }
-
-	    if ((pGCtmp->serialNumber) != (pPixmap->drawable.serialNumber))
-		ValidateGC((DrawablePtr)pPixmap, pGCtmp);
-	    (*pGCtmp->ops->PutImage)((DrawablePtr)pPixmap, pGCtmp,
-				pPixmap->drawable.depth,
-				0, 0, gWidth, gHeight, 
-				0, XYBitmap, (char *)pb);
-
-	    if ((pGC->serialNumber) != (pDrawable->serialNumber))
-		ValidateGC(pDrawable, pGC);
-	    (*pGC->ops->PushPixels)(pGC, pPixmap, pDrawable,
-			       gWidth, gHeight,
-			       x + pci->metrics.leftSideBearing,
-			       y - pci->metrics.ascent);
-	}
-	x += pci->metrics.characterWidth;
-    }
-    (*pDrawable->pScreen->DestroyPixmap)(pPixmap);
-    xfree(pbits);
-    FreeScratchGC(pGCtmp);
-}
-
-
-void
-miImageGlyphBlt(
-    DrawablePtr pDrawable,
-    GC		*pGC,
-    int		 x,
-    int		 y,
-    unsigned int nglyph,
-    CharInfoPtr *ppci,		/* array of character info */
-    pointer      pglyphBase	/* start of array of glyphs */
-    )
-{
-    ExtentInfoRec info;		/* used by QueryGlyphExtents() */
-    XID gcvals[3];
-    int oldAlu, oldFS;
-    unsigned long	oldFG;
-    xRectangle backrect;
-
-    QueryGlyphExtents(pGC->font, ppci, (unsigned long)nglyph, &info);
-
-    if (info.overallWidth >= 0)
-    {
-    	backrect.x = x;
-    	backrect.width = info.overallWidth;
-    }
-    else
-    {
-	backrect.x = x + info.overallWidth;
-	backrect.width = -info.overallWidth;
-    }
-    backrect.y = y - FONTASCENT(pGC->font);
-    backrect.height = FONTASCENT(pGC->font) + FONTDESCENT(pGC->font);
-
-    oldAlu = pGC->alu;
-    oldFG = pGC->fgPixel;
-    oldFS = pGC->fillStyle;
-
-    /* fill in the background */
-    gcvals[0] = GXcopy;
-    gcvals[1] = pGC->bgPixel;
-    gcvals[2] = FillSolid;
-    DoChangeGC(pGC, GCFunction|GCForeground|GCFillStyle, gcvals, 0);
-    ValidateGC(pDrawable, pGC);
-    (*pGC->ops->PolyFillRect)(pDrawable, pGC, 1, &backrect);
-
-    /* put down the glyphs */
-    gcvals[0] = oldFG;
-    DoChangeGC(pGC, GCForeground, gcvals, 0);
-    ValidateGC(pDrawable, pGC);
-    (*pGC->ops->PolyGlyphBlt)(pDrawable, pGC, x, y, nglyph, ppci,
-			      pglyphBase);
-
-    /* put all the toys away when done playing */
-    gcvals[0] = oldAlu;
-    gcvals[1] = oldFG;
-    gcvals[2] = oldFS;
-    DoChangeGC(pGC, GCFunction|GCForeground|GCFillStyle, gcvals, 0);
-    ValidateGC(pDrawable, pGC);
-
-}
+/***********************************************************

+

+Copyright 1987, 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.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+******************************************************************/

+

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include	<X11/X.h>

+#include	<X11/Xmd.h>

+#include	<X11/Xproto.h>

+#include	"misc.h"

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

+#include	"dixfontstr.h"

+#include	"gcstruct.h"

+#include	"windowstr.h"

+#include	"scrnintstr.h"

+#include	"pixmap.h"

+#include	"servermd.h"

+#include        "mi.h"

+

+/*

+    machine-independent glyph blt.

+    assumes that glyph bits in snf are written in bytes,

+have same bit order as the server's bitmap format,

+and are byte padded.  this corresponds to the snf distributed

+with the sample server.

+

+    get a scratch GC.

+    in the scratch GC set alu = GXcopy, fg = 1, bg = 0

+    allocate a bitmap big enough to hold the largest glyph in the font

+    validate the scratch gc with the bitmap

+    for each glyph

+	carefully put the bits of the glyph in a buffer,

+	    padded to the server pixmap scanline padding rules

+	fake a call to PutImage from the buffer into the bitmap

+	use the bitmap in a call to PushPixels

+*/

+

+void

+miPolyGlyphBlt(

+    DrawablePtr pDrawable,

+    GC		*pGC,

+    int		x,

+    int		y,

+    unsigned int nglyph,

+    CharInfoPtr *ppci,		/* array of character info */

+    pointer      pglyphBase	/* start of array of glyphs */

+    )

+{

+    int width, height;

+    PixmapPtr pPixmap;

+    int nbyLine;		/* bytes per line of padded pixmap */

+    FontPtr pfont;

+    GCPtr pGCtmp;

+    int i;

+    int j;

+    unsigned char *pbits;	/* buffer for PutImage */

+    unsigned char *pb;		/* temp pointer into buffer */

+    CharInfoPtr pci;		/* currect char info */

+    unsigned char *pglyph;	/* pointer bits in glyph */

+    int gWidth, gHeight;	/* width and height of glyph */

+    int nbyGlyphWidth;		/* bytes per scanline of glyph */

+    int nbyPadGlyph;		/* server padded line of glyph */

+

+    ChangeGCVal gcvals[3];

+

+    if (pGC->miTranslate)

+    {

+	x += pDrawable->x;

+	y += pDrawable->y;

+    }

+

+    pfont = pGC->font;

+    width = FONTMAXBOUNDS(pfont,rightSideBearing) - 

+	    FONTMINBOUNDS(pfont,leftSideBearing);

+    height = FONTMAXBOUNDS(pfont,ascent) +

+	     FONTMAXBOUNDS(pfont,descent);

+

+    pPixmap = (*pDrawable->pScreen->CreatePixmap)(pDrawable->pScreen,

+						  width, height, 1,

+						  CREATE_PIXMAP_USAGE_SCRATCH);

+    if (!pPixmap)

+	return;

+

+    pGCtmp = GetScratchGC(1, pDrawable->pScreen);

+    if (!pGCtmp)

+    {

+	(*pDrawable->pScreen->DestroyPixmap)(pPixmap);

+	return;

+    }

+

+    gcvals[0].val = GXcopy;

+    gcvals[1].val = 1;

+    gcvals[2].val = 0;

+

+    ChangeGC(NullClient, pGCtmp, GCFunction|GCForeground|GCBackground, gcvals);

+

+    nbyLine = BitmapBytePad(width);

+    pbits = malloc(height*nbyLine);

+    if (!pbits)

+    {

+	(*pDrawable->pScreen->DestroyPixmap)(pPixmap);

+	FreeScratchGC(pGCtmp);

+        return;

+    }

+    while(nglyph--)

+    {

+	pci = *ppci++;

+	pglyph = FONTGLYPHBITS(pglyphBase, pci);

+	gWidth = GLYPHWIDTHPIXELS(pci);

+	gHeight = GLYPHHEIGHTPIXELS(pci);

+	if (gWidth && gHeight)

+	{

+	    nbyGlyphWidth = GLYPHWIDTHBYTESPADDED(pci);

+	    nbyPadGlyph = BitmapBytePad(gWidth);

+

+	    if (nbyGlyphWidth == nbyPadGlyph

+#if GLYPHPADBYTES != 4

+	        && (((int) pglyph) & 3) == 0

+#endif

+		)

+	    {

+		pb = pglyph;

+	    }

+	    else

+	    {

+		for (i=0, pb = pbits; i<gHeight; i++, pb = pbits+(i*nbyPadGlyph))

+		    for (j = 0; j < nbyGlyphWidth; j++)

+			*pb++ = *pglyph++;

+		pb = pbits;

+	    }

+

+	    if ((pGCtmp->serialNumber) != (pPixmap->drawable.serialNumber))

+		ValidateGC((DrawablePtr)pPixmap, pGCtmp);

+	    (*pGCtmp->ops->PutImage)((DrawablePtr)pPixmap, pGCtmp,

+				pPixmap->drawable.depth,

+				0, 0, gWidth, gHeight, 

+				0, XYBitmap, (char *)pb);

+

+	    if ((pGC->serialNumber) != (pDrawable->serialNumber))

+		ValidateGC(pDrawable, pGC);

+	    (*pGC->ops->PushPixels)(pGC, pPixmap, pDrawable,

+			       gWidth, gHeight,

+			       x + pci->metrics.leftSideBearing,

+			       y - pci->metrics.ascent);

+	}

+	x += pci->metrics.characterWidth;

+    }

+    (*pDrawable->pScreen->DestroyPixmap)(pPixmap);

+    free(pbits);

+    FreeScratchGC(pGCtmp);

+}

+

+

+void

+miImageGlyphBlt(

+    DrawablePtr pDrawable,

+    GC		*pGC,

+    int		 x,

+    int		 y,

+    unsigned int nglyph,

+    CharInfoPtr *ppci,		/* array of character info */

+    pointer      pglyphBase	/* start of array of glyphs */

+    )

+{

+    ExtentInfoRec info;		/* used by QueryGlyphExtents() */

+    ChangeGCVal gcvals[3];

+    int oldAlu, oldFS;

+    unsigned long	oldFG;

+    xRectangle backrect;

+

+    QueryGlyphExtents(pGC->font, ppci, (unsigned long)nglyph, &info);

+

+    if (info.overallWidth >= 0)

+    {

+    	backrect.x = x;

+    	backrect.width = info.overallWidth;

+    }

+    else

+    {

+	backrect.x = x + info.overallWidth;

+	backrect.width = -info.overallWidth;

+    }

+    backrect.y = y - FONTASCENT(pGC->font);

+    backrect.height = FONTASCENT(pGC->font) + FONTDESCENT(pGC->font);

+

+    oldAlu = pGC->alu;

+    oldFG = pGC->fgPixel;

+    oldFS = pGC->fillStyle;

+

+    /* fill in the background */

+    gcvals[0].val = GXcopy;

+    gcvals[1].val = pGC->bgPixel;

+    gcvals[2].val = FillSolid;

+    ChangeGC(NullClient, pGC, GCFunction|GCForeground|GCFillStyle, gcvals);

+    ValidateGC(pDrawable, pGC);

+    (*pGC->ops->PolyFillRect)(pDrawable, pGC, 1, &backrect);

+

+    /* put down the glyphs */

+    gcvals[0].val = oldFG;

+    ChangeGC(NullClient, pGC, GCForeground, gcvals);

+    ValidateGC(pDrawable, pGC);

+    (*pGC->ops->PolyGlyphBlt)(pDrawable, pGC, x, y, nglyph, ppci,

+			      pglyphBase);

+

+    /* put all the toys away when done playing */

+    gcvals[0].val = oldAlu;

+    gcvals[1].val = oldFG;

+    gcvals[2].val = oldFS;

+    ChangeGC(NullClient, pGC, GCFunction|GCForeground|GCFillStyle, gcvals);

+    ValidateGC(pDrawable, pGC);

+

+}

diff --git a/xorg-server/mi/mioverlay.c b/xorg-server/mi/mioverlay.c
index 0577e8c9f..934de61fc 100644
--- a/xorg-server/mi/mioverlay.c
+++ b/xorg-server/mi/mioverlay.c
@@ -1,1952 +1,1952 @@
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#ifdef CreateWindow
-#undef CreateWindow
-#endif
-
-#include <X11/X.h>
-#include "scrnintstr.h"
-#include "validate.h"
-#include "windowstr.h"
-#include "mi.h"
-#include "gcstruct.h"
-#include "regionstr.h"
-#include "privates.h"
-#include "mivalidate.h"
-#include "mioverlay.h"
-#include "migc.h"
-
-#include "globals.h"
-
-
-typedef struct {
-   RegionRec 	exposed;
-   RegionRec	borderExposed;
-   RegionPtr	borderVisible;
-   DDXPointRec	oldAbsCorner;
-} miOverlayValDataRec, *miOverlayValDataPtr;
-
-typedef struct _TreeRec {
-   WindowPtr		pWin;
-   struct _TreeRec 	*parent;
-   struct _TreeRec 	*firstChild; 
-   struct _TreeRec 	*lastChild; 
-   struct _TreeRec 	*prevSib; 
-   struct _TreeRec 	*nextSib;
-   RegionRec 		borderClip;
-   RegionRec 		clipList;
-   unsigned		visibility;
-   miOverlayValDataPtr  valdata;
-} miOverlayTreeRec, *miOverlayTreePtr;
-
-typedef struct {
-   miOverlayTreePtr	tree;
-} miOverlayWindowRec, *miOverlayWindowPtr;
-
-typedef struct {
-   CloseScreenProcPtr   	CloseScreen;
-   CreateWindowProcPtr  	CreateWindow;
-   DestroyWindowProcPtr 	DestroyWindow;
-   UnrealizeWindowProcPtr	UnrealizeWindow;
-   RealizeWindowProcPtr		RealizeWindow;
-   miOverlayTransFunc		MakeTransparent;
-   miOverlayInOverlayFunc	InOverlay;
-   Bool				underlayMarked;
-   Bool				copyUnderlay;
-} miOverlayScreenRec, *miOverlayScreenPtr;
-
-static int miOverlayWindowKeyKeyIndex;
-static DevPrivateKey miOverlayWindowKey = &miOverlayWindowKeyKeyIndex;
-static int miOverlayScreenKeyIndex;
-static DevPrivateKey miOverlayScreenKey = &miOverlayScreenKeyIndex;
-
-static void RebuildTree(WindowPtr);
-static Bool HasUnderlayChildren(WindowPtr);
-static void MarkUnderlayWindow(WindowPtr);
-static Bool CollectUnderlayChildrenRegions(WindowPtr, RegionPtr);
-
-static Bool miOverlayCloseScreen(int, ScreenPtr);
-static Bool miOverlayCreateWindow(WindowPtr);
-static Bool miOverlayDestroyWindow(WindowPtr);
-static Bool miOverlayUnrealizeWindow(WindowPtr);
-static Bool miOverlayRealizeWindow(WindowPtr);
-static void miOverlayMarkWindow(WindowPtr);
-static void miOverlayReparentWindow(WindowPtr, WindowPtr);
-static void miOverlayRestackWindow(WindowPtr, WindowPtr);
-static Bool miOverlayMarkOverlappedWindows(WindowPtr, WindowPtr, WindowPtr*);
-static void miOverlayMarkUnrealizedWindow(WindowPtr, WindowPtr, Bool);
-static int miOverlayValidateTree(WindowPtr, WindowPtr, VTKind);
-static void miOverlayHandleExposures(WindowPtr);
-static void miOverlayMoveWindow(WindowPtr, int, int, WindowPtr, VTKind);
-static void miOverlayWindowExposures(WindowPtr, RegionPtr, RegionPtr);
-static void miOverlayResizeWindow(WindowPtr, int, int, unsigned int,
-					unsigned int, WindowPtr);
-static void miOverlayClearToBackground(WindowPtr, int, int, int, int, Bool);
-
-static void miOverlaySetShape(WindowPtr);
-static void miOverlayChangeBorderWidth(WindowPtr, unsigned int);
-
-#define MIOVERLAY_GET_SCREEN_PRIVATE(pScreen) ((miOverlayScreenPtr) \
-	dixLookupPrivate(&(pScreen)->devPrivates, miOverlayScreenKey))
-#define MIOVERLAY_GET_WINDOW_PRIVATE(pWin) ((miOverlayWindowPtr) \
-	dixLookupPrivate(&(pWin)->devPrivates, miOverlayWindowKey))
-#define MIOVERLAY_GET_WINDOW_TREE(pWin) \
-	(MIOVERLAY_GET_WINDOW_PRIVATE(pWin)->tree)
-
-#define IN_UNDERLAY(w) MIOVERLAY_GET_WINDOW_TREE(w)
-#define IN_OVERLAY(w) !MIOVERLAY_GET_WINDOW_TREE(w)
-
-#define MARK_OVERLAY(w) miMarkWindow(w)
-#define MARK_UNDERLAY(w) MarkUnderlayWindow(w)
-
-#define HasParentRelativeBorder(w) (!(w)->borderIsPixel && \
-                                    HasBorder(w) && \
-                                    (w)->backgroundState == ParentRelative)
-
-Bool
-miInitOverlay(
-    ScreenPtr pScreen, 
-    miOverlayInOverlayFunc inOverlayFunc,
-    miOverlayTransFunc transFunc
-){
-    miOverlayScreenPtr	pScreenPriv;
-
-    if(!inOverlayFunc || !transFunc) return FALSE;
-
-    if(!dixRequestPrivate(miOverlayWindowKey, sizeof(miOverlayWindowRec)))
-	return FALSE;
-
-    if(!(pScreenPriv = xalloc(sizeof(miOverlayScreenRec))))
-	return FALSE;
-
-    dixSetPrivate(&pScreen->devPrivates, miOverlayScreenKey, pScreenPriv);
-
-    pScreenPriv->InOverlay = inOverlayFunc;
-    pScreenPriv->MakeTransparent = transFunc;
-    pScreenPriv->underlayMarked = FALSE;
-
-
-    pScreenPriv->CloseScreen = pScreen->CloseScreen;
-    pScreenPriv->CreateWindow = pScreen->CreateWindow;
-    pScreenPriv->DestroyWindow = pScreen->DestroyWindow;
-    pScreenPriv->UnrealizeWindow = pScreen->UnrealizeWindow;
-    pScreenPriv->RealizeWindow = pScreen->RealizeWindow;
-
-    pScreen->CloseScreen = miOverlayCloseScreen;
-    pScreen->CreateWindow = miOverlayCreateWindow;
-    pScreen->DestroyWindow = miOverlayDestroyWindow;
-    pScreen->UnrealizeWindow = miOverlayUnrealizeWindow;
-    pScreen->RealizeWindow = miOverlayRealizeWindow;
-
-    pScreen->ReparentWindow = miOverlayReparentWindow;
-    pScreen->RestackWindow = miOverlayRestackWindow;
-    pScreen->MarkOverlappedWindows = miOverlayMarkOverlappedWindows;
-    pScreen->MarkUnrealizedWindow = miOverlayMarkUnrealizedWindow;
-    pScreen->ValidateTree = miOverlayValidateTree;
-    pScreen->HandleExposures = miOverlayHandleExposures;
-    pScreen->MoveWindow = miOverlayMoveWindow;
-    pScreen->WindowExposures = miOverlayWindowExposures;
-    pScreen->ResizeWindow = miOverlayResizeWindow;
-    pScreen->MarkWindow = miOverlayMarkWindow;
-    pScreen->ClearToBackground = miOverlayClearToBackground;
-    pScreen->SetShape = miOverlaySetShape;
-    pScreen->ChangeBorderWidth = miOverlayChangeBorderWidth;
-
-    return TRUE;
-}
-
-
-static Bool 
-miOverlayCloseScreen(int i, ScreenPtr pScreen)
-{
-   miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
-
-   pScreen->CloseScreen = pScreenPriv->CloseScreen; 
-   pScreen->CreateWindow = pScreenPriv->CreateWindow;
-   pScreen->DestroyWindow = pScreenPriv->DestroyWindow;
-   pScreen->UnrealizeWindow = pScreenPriv->UnrealizeWindow;
-   pScreen->RealizeWindow = pScreenPriv->RealizeWindow;
-
-   xfree(pScreenPriv);
-
-   return (*pScreen->CloseScreen)(i, pScreen);
-}
-
-
-static Bool 
-miOverlayCreateWindow(WindowPtr pWin)
-{
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-    miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
-    miOverlayWindowPtr pWinPriv = MIOVERLAY_GET_WINDOW_PRIVATE(pWin);
-    miOverlayTreePtr pTree = NULL;
-    Bool result = TRUE;
-
-    pWinPriv->tree = NULL;
-
-    if(!pWin->parent || !((*pScreenPriv->InOverlay)(pWin))) {
-	if(!(pTree = (miOverlayTreePtr)xcalloc(1, sizeof(miOverlayTreeRec))))
-	   return FALSE;
-    }
-
-    if(pScreenPriv->CreateWindow) {
-	pScreen->CreateWindow = pScreenPriv->CreateWindow;
-	result = (*pScreen->CreateWindow)(pWin);
-	pScreen->CreateWindow = miOverlayCreateWindow;
-    }
-	
-    if (pTree) {
-	if(result) {
-	    pTree->pWin = pWin;
-	    pTree->visibility = VisibilityNotViewable;
-	    pWinPriv->tree = pTree;
-	    if(pWin->parent) {
-		REGION_NULL(pScreen, &(pTree->borderClip));
-		REGION_NULL(pScreen, &(pTree->clipList));
-		RebuildTree(pWin);
-	    } else {
-		BoxRec fullBox;
-		fullBox.x1 = 0;
-		fullBox.y1 = 0;
-		fullBox.x2 = pScreen->width;
-		fullBox.y2 = pScreen->height;
-		REGION_INIT(pScreen, &(pTree->borderClip), &fullBox, 1);
-		REGION_INIT(pScreen, &(pTree->clipList), &fullBox, 1);
-	    }
-	} else xfree(pTree);
-    }
-
-    return TRUE;
-}
-
-
-static Bool 
-miOverlayDestroyWindow(WindowPtr pWin)
-{
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-    miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
-    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
-    Bool result = TRUE;
-
-    if (pTree) {
-	if(pTree->prevSib)
-	   pTree->prevSib->nextSib = pTree->nextSib;
-	else if(pTree->parent)
-	   pTree->parent->firstChild = pTree->nextSib;
-
-	if(pTree->nextSib)
-	   pTree->nextSib->prevSib = pTree->prevSib;
-	else if(pTree->parent)
-	   pTree->parent->lastChild = pTree->prevSib;
-
-	REGION_UNINIT(pScreen, &(pTree->borderClip));
-	REGION_UNINIT(pScreen, &(pTree->clipList));
-	xfree(pTree);
-    }
-
-    if(pScreenPriv->DestroyWindow) {
-	pScreen->DestroyWindow = pScreenPriv->DestroyWindow;
-	result = (*pScreen->DestroyWindow)(pWin);
-	pScreen->DestroyWindow = miOverlayDestroyWindow;
-    }
-
-    return result;
-}
-
-static Bool 
-miOverlayUnrealizeWindow(WindowPtr pWin)
-{
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-    miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
-    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
-    Bool result = TRUE;
-
-    if(pTree) pTree->visibility = VisibilityNotViewable;
-
-    if(pScreenPriv->UnrealizeWindow) {
-	pScreen->UnrealizeWindow = pScreenPriv->UnrealizeWindow;
-	result = (*pScreen->UnrealizeWindow)(pWin);
-	pScreen->UnrealizeWindow = miOverlayUnrealizeWindow;
-    }
-
-    return result;
-}
-
-
-static Bool 
-miOverlayRealizeWindow(WindowPtr pWin)
-{
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-    miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
-    Bool result = TRUE;
-
-    if(pScreenPriv->RealizeWindow) {
-	pScreen->RealizeWindow = pScreenPriv->RealizeWindow;
-	result = (*pScreen->RealizeWindow)(pWin);
-	pScreen->RealizeWindow = miOverlayRealizeWindow;
-    }
-
-    /* we only need to catch the root window realization */
-
-    if(result && !pWin->parent && !((*pScreenPriv->InOverlay)(pWin)))
-    {
-	BoxRec box;
-	box.x1 = box.y1 = 0;
-	box.x2 = pWin->drawable.width;
-	box.y2 = pWin->drawable.height;
-	(*pScreenPriv->MakeTransparent)(pScreen, 1, &box);
-    }
-
-    return result;
-}
-
-
-static void 
-miOverlayReparentWindow(WindowPtr pWin, WindowPtr pPriorParent)
-{
-    if(IN_UNDERLAY(pWin) || HasUnderlayChildren(pWin)) {
-	/* This could probably be more optimal */
-	RebuildTree(WindowTable[pWin->drawable.pScreen->myNum]->firstChild);
-    }	
-}
-
-static void 
-miOverlayRestackWindow(WindowPtr pWin, WindowPtr oldNextSib)
-{
-    if(IN_UNDERLAY(pWin) || HasUnderlayChildren(pWin)) {
-	/* This could probably be more optimal */
-	RebuildTree(pWin);
-    }	
-}
-
-
-static Bool
-miOverlayMarkOverlappedWindows(
-    WindowPtr pWin,
-    WindowPtr pFirst,
-    WindowPtr *pLayerWin
-){
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-    WindowPtr pChild, pLast;
-    Bool overMarked, underMarked, doUnderlay, markAll;
-    miOverlayTreePtr pTree = NULL, tLast, tChild;
-    BoxPtr box;
-    
-    overMarked = underMarked = markAll = FALSE;
-
-    if(pLayerWin) *pLayerWin = pWin; /* hah! */
-
-    doUnderlay = (IN_UNDERLAY(pWin) || HasUnderlayChildren(pWin));
-
-    box = REGION_EXTENTS(pScreen, &pWin->borderSize);
-
-    if((pChild = pFirst)) {
-	pLast = pChild->parent->lastChild;
-	while (1) {
-	    if (pChild == pWin) markAll = TRUE;
-
-	    if(doUnderlay && IN_UNDERLAY(pChild))
-		pTree = MIOVERLAY_GET_WINDOW_TREE(pChild);
-
-	    if(pChild->viewable) {
-                if (REGION_BROKEN (pScreen, &pChild->winSize))
-                    SetWinSize (pChild);
-                if (REGION_BROKEN (pScreen, &pChild->borderSize))
-		    SetBorderSize (pChild);
-
-	    	if (markAll || 
-		    RECT_IN_REGION(pScreen, &pChild->borderSize, box))
-		{
-		    MARK_OVERLAY(pChild);
-		    overMarked = TRUE;
-		    if(doUnderlay && IN_UNDERLAY(pChild)) {
-			MARK_UNDERLAY(pChild);
-			underMarked = TRUE;
-		    }
-		    if (pChild->firstChild) {
-			pChild = pChild->firstChild;
-			continue;
-		    }
-		}
-	    }
-	    while (!pChild->nextSib && (pChild != pLast)) {
-		pChild = pChild->parent;
-		if(doUnderlay && IN_UNDERLAY(pChild))
-		    pTree = MIOVERLAY_GET_WINDOW_TREE(pChild);
-	    }
-
-	    if(pChild == pWin) markAll = FALSE;
-
-	    if (pChild == pLast) break;
-
-	    pChild = pChild->nextSib;
-	}
-	if(overMarked)
-	    MARK_OVERLAY(pWin->parent);
-    } 
-
-    if(doUnderlay && !pTree) {
-	if(!(pTree = MIOVERLAY_GET_WINDOW_TREE(pWin))) {
- 	    pChild = pWin->lastChild;
-	    while(1) {
-		if((pTree = MIOVERLAY_GET_WINDOW_TREE(pChild)))
-		    break;
-
-		if(pChild->lastChild) {
-		    pChild = pChild->lastChild;
-		    continue;
-		}
-
-		while(!pChild->prevSib) pChild = pChild->parent;
-
-		pChild = pChild->prevSib;
-	    }
-	}
-    }
-   
-    if(pTree && pTree->nextSib) {
-	tChild = pTree->parent->lastChild;
-	tLast = pTree->nextSib;	
-
-	while(1) {
-	    if(tChild->pWin->viewable) { 
-                if (REGION_BROKEN (pScreen, &tChild->pWin->winSize))
-                    SetWinSize (tChild->pWin);
-                if (REGION_BROKEN (pScreen, &tChild->pWin->borderSize))
-		    SetBorderSize (tChild->pWin);
-
-		if(RECT_IN_REGION(pScreen, &(tChild->pWin->borderSize), box)) 
-	        {
-		    MARK_UNDERLAY(tChild->pWin);
-		    underMarked = TRUE;
-	        }
-	    }
-
-	    if(tChild->lastChild) {
-		tChild = tChild->lastChild;
-		continue;
-	    }
-
-	    while(!tChild->prevSib && (tChild != tLast))
-		tChild = tChild->parent;
-
-	    if(tChild == tLast) break;
-
-	    tChild = tChild->prevSib;
-	}
-    }
-
-    if(underMarked) {
-	MARK_UNDERLAY(pTree->parent->pWin);
-	MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->underlayMarked = TRUE;	
-    }
-
-    return (underMarked || overMarked);
-}
-
-
-static void
-miOverlayComputeClips(
-    WindowPtr pParent, 
-    RegionPtr universe,
-    VTKind kind,
-    RegionPtr exposed
-){
-    ScreenPtr pScreen = pParent->drawable.pScreen;
-    int oldVis, newVis, dx, dy;
-    BoxRec borderSize;
-    RegionPtr borderVisible;
-    RegionRec childUniverse, childUnion;
-    miOverlayTreePtr tParent = MIOVERLAY_GET_WINDOW_TREE(pParent);
-    miOverlayTreePtr tChild;
-    Bool overlap;
-
-    borderSize.x1 = pParent->drawable.x - wBorderWidth(pParent);
-    borderSize.y1 = pParent->drawable.y - wBorderWidth(pParent);
-    dx = (int) pParent->drawable.x + (int) pParent->drawable.width + 
-						wBorderWidth(pParent);
-    if (dx > 32767) dx = 32767;
-    borderSize.x2 = dx;
-    dy = (int) pParent->drawable.y + (int) pParent->drawable.height + 
-						wBorderWidth(pParent);
-    if (dy > 32767) dy = 32767;
-    borderSize.y2 = dy;
-  
-    oldVis = tParent->visibility;
-    switch (RECT_IN_REGION( pScreen, universe, &borderSize)) {
-	case rgnIN:
-	    newVis = VisibilityUnobscured;
-	    break;
-	case rgnPART:
-	    newVis = VisibilityPartiallyObscured;
-	    {
-		RegionPtr   pBounding;
-
-		if ((pBounding = wBoundingShape (pParent))) {
-		    switch (miShapedWindowIn (pScreen, universe, pBounding,
-					      &borderSize,
-					      pParent->drawable.x,
- 					      pParent->drawable.y))
-		    {
-		    case rgnIN:
-			newVis = VisibilityUnobscured;
-			break;
-		    case rgnOUT:
-			newVis = VisibilityFullyObscured;
-			break;
-		    }
-		}
-	    }
-	    break;
-	default:
-	    newVis = VisibilityFullyObscured;
-	    break;
-    }
-    tParent->visibility = newVis;
-
-    dx = pParent->drawable.x - tParent->valdata->oldAbsCorner.x;
-    dy = pParent->drawable.y - tParent->valdata->oldAbsCorner.y;
-
-    switch (kind) {
-    case VTMap:
-    case VTStack:
-    case VTUnmap:
-	break;
-    case VTMove:
-	if ((oldVis == newVis) &&
-	    ((oldVis == VisibilityFullyObscured) ||
-	     (oldVis == VisibilityUnobscured)))
-	{
-	    tChild = tParent;
-	    while (1) {
-		if (tChild->pWin->viewable) {
-		    if (tChild->visibility != VisibilityFullyObscured) {
-			REGION_TRANSLATE( pScreen, &tChild->borderClip, dx, dy);
-			REGION_TRANSLATE( pScreen, &tChild->clipList, dx, dy);
-		
-			tChild->pWin->drawable.serialNumber = 
-							 NEXT_SERIAL_NUMBER;
-                        if (pScreen->ClipNotify)
-                            (* pScreen->ClipNotify) (tChild->pWin, dx, dy);
-		    }
-		    if (tChild->valdata) {
-			REGION_NULL(pScreen, &tChild->valdata->borderExposed);
-			if (HasParentRelativeBorder(tChild->pWin)){
-			    REGION_SUBTRACT(pScreen,
-					 &tChild->valdata->borderExposed,
-					 &tChild->borderClip,
-					 &tChild->pWin->winSize);
-			}
-			REGION_NULL(pScreen, &tChild->valdata->exposed);
-		    }
-		    if (tChild->firstChild) {
-			tChild = tChild->firstChild;
-			continue;
-		    }
-		}
-		while (!tChild->nextSib && (tChild != tParent))
-		    tChild = tChild->parent;
-		if (tChild == tParent)
-		    break;
-		tChild = tChild->nextSib;
-	    }
-	    return;
-	}
-	/* fall through */
-    default:
-    	if (dx || dy)  {
-	    REGION_TRANSLATE( pScreen, &tParent->borderClip, dx, dy);
-	    REGION_TRANSLATE( pScreen, &tParent->clipList, dx, dy);
-    	} 
-	break;
-    case VTBroken:
-	REGION_EMPTY (pScreen, &tParent->borderClip);
-	REGION_EMPTY (pScreen, &tParent->clipList);
-	break;
-    }
-
-    borderVisible = tParent->valdata->borderVisible;
-    REGION_NULL(pScreen, &tParent->valdata->borderExposed);
-    REGION_NULL(pScreen, &tParent->valdata->exposed);
-
-    if (HasBorder (pParent)) {
-    	if (borderVisible) {
-	    REGION_SUBTRACT( pScreen, exposed, universe, borderVisible);
-	    REGION_DESTROY( pScreen, borderVisible);
-    	} else
-	    REGION_SUBTRACT( pScreen, exposed, universe, &tParent->borderClip);
-
-	if (HasParentRelativeBorder(pParent) && (dx || dy))
-	    REGION_SUBTRACT( pScreen, &tParent->valdata->borderExposed,
-				  universe, &pParent->winSize);
-	else
-	    REGION_SUBTRACT( pScreen, &tParent->valdata->borderExposed,
-			       exposed, &pParent->winSize);
-
-    	REGION_COPY( pScreen, &tParent->borderClip, universe);    
-    	REGION_INTERSECT( pScreen, universe, universe, &pParent->winSize);
-    }
-    else
-    	REGION_COPY( pScreen, &tParent->borderClip, universe);
-
-    if ((tChild = tParent->firstChild) && pParent->mapped) {
-	REGION_NULL(pScreen, &childUniverse);
-	REGION_NULL(pScreen, &childUnion);
-
-	for (; tChild; tChild = tChild->nextSib) {
-	    if (tChild->pWin->viewable)
-		REGION_APPEND( pScreen, &childUnion, &tChild->pWin->borderSize);
-	}
-
-	REGION_VALIDATE( pScreen, &childUnion, &overlap);
-
-	for (tChild = tParent->firstChild;
-	     tChild;
-	     tChild = tChild->nextSib)
- 	{
-	    if (tChild->pWin->viewable) {
-		if (tChild->valdata) {
-		    REGION_INTERSECT( pScreen, &childUniverse, universe,
-					    &tChild->pWin->borderSize);
-		    miOverlayComputeClips (tChild->pWin, &childUniverse, 
-						kind, exposed);
-		}
-		if (overlap)
-		    REGION_SUBTRACT( pScreen, universe, universe,
-					  &tChild->pWin->borderSize);
-	    }
-	}
-	if (!overlap)
-	    REGION_SUBTRACT( pScreen, universe, universe, &childUnion);
-	REGION_UNINIT( pScreen, &childUnion);
-	REGION_UNINIT( pScreen, &childUniverse);
-    } 
-
-    if (oldVis == VisibilityFullyObscured ||
-	oldVis == VisibilityNotViewable)
-    {
-	REGION_COPY( pScreen, &tParent->valdata->exposed, universe);
-    }
-    else if (newVis != VisibilityFullyObscured &&
-	     newVis != VisibilityNotViewable)
-    {
-    	REGION_SUBTRACT( pScreen, &tParent->valdata->exposed,
-			       universe, &tParent->clipList);
-    }
-    
-    /* HACK ALERT - copying contents of regions, instead of regions */
-    {
-	RegionRec   tmp;
-
-	tmp = tParent->clipList;
-	tParent->clipList = *universe;
-	*universe = tmp;
-    }
-
-    pParent->drawable.serialNumber = NEXT_SERIAL_NUMBER;
-
-    if (pScreen->ClipNotify)
-        (* pScreen->ClipNotify) (pParent, dx, dy);
-}
-
-
-static void 
-miOverlayMarkWindow(WindowPtr pWin)
-{
-    miOverlayTreePtr pTree = NULL;
-    WindowPtr pChild, pGrandChild;
-   
-    miMarkWindow(pWin);
-
-    /* look for UnmapValdata among immediate children */
-
-    if(!(pChild = pWin->firstChild)) return;
-
-    for( ; pChild; pChild = pChild->nextSib) {
-	if(pChild->valdata == UnmapValData) {
-	    if(IN_UNDERLAY(pChild)) {
-		pTree = MIOVERLAY_GET_WINDOW_TREE(pChild);
-		pTree->valdata = (miOverlayValDataPtr)UnmapValData; 
-		continue;
-	    } else {	
-	        if(!(pGrandChild = pChild->firstChild))
-		   continue;
-
-		while(1) {
-		    if(IN_UNDERLAY(pGrandChild)) {
-			pTree = MIOVERLAY_GET_WINDOW_TREE(pGrandChild);
-			pTree->valdata = (miOverlayValDataPtr)UnmapValData; 
-		    } else if(pGrandChild->firstChild) {	
-			pGrandChild = pGrandChild->firstChild;
-			continue;
-		    }
-
-		    while(!pGrandChild->nextSib && (pGrandChild != pChild))
-			pGrandChild = pGrandChild->parent;
-
-		    if(pChild == pGrandChild) break;
-		
-		    pGrandChild = pGrandChild->nextSib;
-		}
-	    }
-        }
-    }
-
-    if(pTree) {
-	MARK_UNDERLAY(pTree->parent->pWin);
-	MIOVERLAY_GET_SCREEN_PRIVATE(
-		pWin->drawable.pScreen)->underlayMarked = TRUE;
-    }
-}
-
-static void
-miOverlayMarkUnrealizedWindow(
-    WindowPtr pChild,
-    WindowPtr pWin,
-    Bool fromConfigure
-){
-    if ((pChild != pWin) || fromConfigure) {
-	miOverlayTreePtr pTree;
-
-        REGION_EMPTY(pChild->drawable.pScreen, &pChild->clipList);
-        if (pChild->drawable.pScreen->ClipNotify)
-            (* pChild->drawable.pScreen->ClipNotify)(pChild, 0, 0);
-        REGION_EMPTY(pChild->drawable.pScreen, &pChild->borderClip);
-	if((pTree = MIOVERLAY_GET_WINDOW_TREE(pChild))) {
-	    if(pTree->valdata != (miOverlayValDataPtr)UnmapValData) {
-		REGION_EMPTY(pChild->drawable.pScreen, &pTree->clipList);
-		REGION_EMPTY(pChild->drawable.pScreen, &pTree->borderClip);
-	    }
-	}
-    }
-}
-
-
-static int 
-miOverlayValidateTree(
-    WindowPtr pParent,
-    WindowPtr pChild,   /* first child effected */
-    VTKind    kind
-){
-    ScreenPtr pScreen = pParent->drawable.pScreen;
-    miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
-    RegionRec totalClip, childClip, exposed;
-    miOverlayTreePtr tParent, tChild, tWin;
-    Bool overlap;
-    WindowPtr newParent;
-
-    if(!pPriv->underlayMarked)
-	goto SKIP_UNDERLAY;
-
-    if (!pChild) pChild = pParent->firstChild;
-
-    REGION_NULL(pScreen, &totalClip);
-    REGION_NULL(pScreen, &childClip);
-    REGION_NULL(pScreen, &exposed);
-
-    newParent = pParent;
-
-    while(IN_OVERLAY(newParent))
-    	newParent = newParent->parent;
-
-    tParent = MIOVERLAY_GET_WINDOW_TREE(newParent);
-
-    if(IN_UNDERLAY(pChild))
-	tChild = MIOVERLAY_GET_WINDOW_TREE(pChild);
-    else
-	tChild = tParent->firstChild;
-
-    if (REGION_BROKEN (pScreen, &tParent->clipList) &&
-        !REGION_BROKEN (pScreen, &tParent->borderClip))
-    {
-	kind = VTBroken;
-	REGION_COPY (pScreen, &totalClip, &tParent->borderClip);
-	REGION_INTERSECT (pScreen, &totalClip, &totalClip,
-						 &tParent->pWin->winSize);
-        
-        for (tWin = tParent->firstChild; tWin != tChild; tWin = tWin->nextSib) {
-            if (tWin->pWin->viewable)
-                REGION_SUBTRACT (pScreen, &totalClip, &totalClip, 
-					&tWin->pWin->borderSize);
-        }        
-        REGION_EMPTY (pScreen, &tParent->clipList);
-    } else {
-	for(tWin = tChild; tWin; tWin = tWin->nextSib) {
-	    if(tWin->valdata)
-		REGION_APPEND(pScreen, &totalClip, &tWin->borderClip);
-	}
-	REGION_VALIDATE(pScreen, &totalClip, &overlap);
-    }
-
-    if(kind != VTStack)
-	REGION_UNION(pScreen, &totalClip, &totalClip, &tParent->clipList);
-	
-    for(tWin = tChild; tWin; tWin = tWin->nextSib) {
-	if(tWin->valdata) {
-	    if(tWin->pWin->viewable) {
-		REGION_INTERSECT(pScreen, &childClip, &totalClip,
-					&tWin->pWin->borderSize);
-		miOverlayComputeClips(tWin->pWin, &childClip, kind, &exposed);
-		REGION_SUBTRACT(pScreen, &totalClip, &totalClip,
-					&tWin->pWin->borderSize);
-	    } else {  /* Means we are unmapping */
-                REGION_EMPTY(pScreen, &tWin->clipList);
-                REGION_EMPTY( pScreen, &tWin->borderClip);
-		tWin->valdata = NULL;
-	    }
-	}
-    }
-
-    REGION_UNINIT(pScreen, &childClip);
-
-    if(!((*pPriv->InOverlay)(newParent))) {
-	REGION_NULL(pScreen, &tParent->valdata->exposed);
-	REGION_NULL(pScreen, &tParent->valdata->borderExposed);
-    }
-
-    switch (kind) {
-    case VTStack:
-	break;
-    default:
-    	if(!((*pPriv->InOverlay)(newParent))) 
-	    REGION_SUBTRACT(pScreen, &tParent->valdata->exposed, &totalClip, 
-						&tParent->clipList);
-	/* fall through */
-    case VTMap:
-	REGION_COPY( pScreen, &tParent->clipList, &totalClip);
-    	if(!((*pPriv->InOverlay)(newParent))) 
-	    newParent->drawable.serialNumber = NEXT_SERIAL_NUMBER;
-	break;
-    }
-
-    REGION_UNINIT( pScreen, &totalClip);
-    REGION_UNINIT( pScreen, &exposed);
-
-SKIP_UNDERLAY:
-
-    miValidateTree(pParent, pChild, kind);
-
-    return 1;
-}
-
-
-static void
-miOverlayHandleExposures(WindowPtr pWin)
-{
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-    miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
-    WindowPtr pChild;
-    ValidatePtr val;
-    void (* WindowExposures)(WindowPtr, RegionPtr, RegionPtr);
-
-    WindowExposures = pWin->drawable.pScreen->WindowExposures;
-    if(pPriv->underlayMarked) {
-	miOverlayTreePtr pTree;
-	miOverlayValDataPtr mival;
-
-	pChild = pWin;
-	while(IN_OVERLAY(pChild))
-	    pChild = pChild->parent;
-
-	pTree = MIOVERLAY_GET_WINDOW_TREE(pChild);
-
-	while (1) {
-	    if((mival = pTree->valdata)) {
-		if(!((*pPriv->InOverlay)(pTree->pWin))) {
-		    if (REGION_NOTEMPTY(pScreen, &mival->borderExposed)) {
-			miPaintWindow(pTree->pWin, &mival->borderExposed,
-				      PW_BORDER);
-		    }
-		    REGION_UNINIT(pScreen, &mival->borderExposed);
-
-		    (*WindowExposures)(pTree->pWin,&mival->exposed,NullRegion);
-		    REGION_UNINIT(pScreen, &mival->exposed);
-		}
-		xfree(mival);
-		pTree->valdata = NULL;
-		if (pTree->firstChild) {
-		    pTree = pTree->firstChild;
-		    continue;
-		}
-	    }
-	    while (!pTree->nextSib && (pTree->pWin != pChild))
-	    	pTree = pTree->parent;
-	    if (pTree->pWin == pChild)
-		break;
-	    pTree = pTree->nextSib;
-        }
-	pPriv->underlayMarked = FALSE;
-    }
-
-    pChild = pWin;
-    while (1) {
-	if ( (val = pChild->valdata) ) {
-	    if(!((*pPriv->InOverlay)(pChild))) {
-		REGION_UNION(pScreen, &val->after.exposed, &val->after.exposed,
-			&val->after.borderExposed);
-
-		if (REGION_NOTEMPTY(pScreen, &val->after.exposed)) {
-		   (*(MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->MakeTransparent))(
-				pScreen, 
-				REGION_NUM_RECTS(&val->after.exposed),
-				REGION_RECTS(&val->after.exposed));
-		}
-	    } else {
-		if (REGION_NOTEMPTY(pScreen, &val->after.borderExposed)) {
-			miPaintWindow(pChild, &val->after.borderExposed,
-				      PW_BORDER);
-		}
-		(*WindowExposures)(pChild, &val->after.exposed, NullRegion);
-	    }
-	    REGION_UNINIT(pScreen, &val->after.borderExposed);
-	    REGION_UNINIT(pScreen, &val->after.exposed);
-	    xfree(val);
-	    pChild->valdata = NULL;
-	    if (pChild->firstChild)
-	    {
-		pChild = pChild->firstChild;
-		continue;
-	    }
-	}
-	while (!pChild->nextSib && (pChild != pWin))
-	    pChild = pChild->parent;
-	if (pChild == pWin)
-	    break;
-	pChild = pChild->nextSib;
-    }
-}
-
-
-static void
-miOverlayMoveWindow(
-    WindowPtr pWin,
-    int x,
-    int y,
-    WindowPtr pNextSib,
-    VTKind kind
-){
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
-    WindowPtr pParent, windowToValidate;
-    Bool WasViewable = (Bool)(pWin->viewable);
-    short bw;
-    RegionRec overReg, underReg;
-    DDXPointRec oldpt;
-
-    if (!(pParent = pWin->parent))
-       return ;
-    bw = wBorderWidth (pWin);
-
-    oldpt.x = pWin->drawable.x;
-    oldpt.y = pWin->drawable.y;
-    if (WasViewable) {
-	REGION_NULL(pScreen, &overReg);
-	REGION_NULL(pScreen, &underReg);
-	if(pTree) {
-	    REGION_COPY(pScreen, &overReg, &pWin->borderClip);
-	    REGION_COPY(pScreen, &underReg, &pTree->borderClip);
-        } else {
-	    REGION_COPY(pScreen, &overReg, &pWin->borderClip);
-	    CollectUnderlayChildrenRegions(pWin, &underReg);
-	}
-	(*pScreen->MarkOverlappedWindows)(pWin, pWin, NULL);
-    }
-    pWin->origin.x = x + (int)bw;
-    pWin->origin.y = y + (int)bw;
-    x = pWin->drawable.x = pParent->drawable.x + x + (int)bw;
-    y = pWin->drawable.y = pParent->drawable.y + y + (int)bw;
-
-    SetWinSize (pWin);
-    SetBorderSize (pWin);
-
-    (*pScreen->PositionWindow)(pWin, x, y);
-
-    windowToValidate = MoveWindowInStack(pWin, pNextSib);
-
-    ResizeChildrenWinSize(pWin, x - oldpt.x, y - oldpt.y, 0, 0);
-
-    if (WasViewable) {
-	miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
-	(*pScreen->MarkOverlappedWindows) (pWin, windowToValidate, NULL);
-
-
-	(*pScreen->ValidateTree)(pWin->parent, NullWindow, kind);
-	if(REGION_NOTEMPTY(pScreen, &underReg)) {
-	    pPriv->copyUnderlay = TRUE;
-	    (* pWin->drawable.pScreen->CopyWindow)(pWin, oldpt, &underReg);
-	}
-	REGION_UNINIT(pScreen, &underReg);
-	if(REGION_NOTEMPTY(pScreen, &overReg)) {
-	    pPriv->copyUnderlay = FALSE;
-	    (* pWin->drawable.pScreen->CopyWindow)(pWin, oldpt, &overReg);
-	}
-	REGION_UNINIT(pScreen, &overReg);
-	(*pScreen->HandleExposures)(pWin->parent);
-
-	if (pScreen->PostValidateTree)
-	    (*pScreen->PostValidateTree)(pWin->parent, NullWindow, kind);
-    }
-    if (pWin->realized)
-	WindowsRestructured ();
-}
-
-#ifndef RECTLIMIT
-#define RECTLIMIT 25
-#endif
-
-static void 
-miOverlayWindowExposures(
-    WindowPtr pWin,
-    RegionPtr prgn,
-    RegionPtr other_exposed
-){
-    RegionPtr   exposures = prgn;
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-
-    if ((prgn && !REGION_NIL(prgn)) || 
-	(exposures && !REGION_NIL(exposures)) || other_exposed)
-    {
-	RegionRec   expRec;
-	int	    clientInterested;
-
-	clientInterested = (pWin->eventMask|wOtherEventMasks(pWin)) &
-		 	    ExposureMask;
-	if (other_exposed) {
-	    if (exposures) {
-		REGION_UNION(pScreen, other_exposed, exposures, other_exposed);
-		if (exposures != prgn)
-		    REGION_DESTROY(pScreen, exposures);
-	    }
-	    exposures = other_exposed;
-	}
-	if (clientInterested && exposures && 
-	   (REGION_NUM_RECTS(exposures) > RECTLIMIT))
-	{
-            miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
-	    BoxRec box;
-
-	    box = *REGION_EXTENTS(pScreen, exposures);
-	    if (exposures == prgn) {
-		exposures = &expRec;
-		REGION_INIT(pScreen, exposures, &box, 1);
-		REGION_RESET(pScreen, prgn, &box);
-	    } else {
-		REGION_RESET(pScreen, exposures, &box);
-		REGION_UNION(pScreen, prgn, prgn, exposures);
-	    }
-	    /* This is the only reason why we are replacing mi's version
-               of this file */
-	    
-	    if(!((*pPriv->InOverlay)(pWin))) {
-		miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
-		REGION_INTERSECT(pScreen, prgn, prgn, &pTree->clipList);
-	    } else
-		REGION_INTERSECT(pScreen, prgn, prgn, &pWin->clipList);
-	}
-	if (prgn && !REGION_NIL(prgn))
-	    miPaintWindow(pWin, prgn, PW_BACKGROUND);
-	if (clientInterested && exposures && !REGION_NIL(exposures))
-	    miSendExposures(pWin, exposures,
-			    pWin->drawable.x, pWin->drawable.y);
-	if (exposures == &expRec) {
-	    REGION_UNINIT(pScreen, exposures);
-	} 
-	else if (exposures && exposures != prgn && exposures != other_exposed)
-	    REGION_DESTROY(pScreen, exposures);
-	if (prgn)
-	    REGION_EMPTY(pScreen, prgn);
-    }
-    else if (exposures && exposures != prgn)
-	REGION_DESTROY(pScreen, exposures);
-}
-
-
-typedef struct {
-   RegionPtr over;
-   RegionPtr under;
-} miOverlayTwoRegions; 
-
-static int
-miOverlayRecomputeExposures (
-    WindowPtr	pWin,
-    pointer	value 
-){
-    ScreenPtr pScreen;
-    miOverlayTwoRegions	*pValid = (miOverlayTwoRegions*)value;
-    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
-
-    /* This prevents warning about pScreen not being used. */
-    pWin->drawable.pScreen = pScreen = pWin->drawable.pScreen;
-
-    if (pWin->valdata) {
-	/*
-	 * compute exposed regions of this window
-	 */
-	REGION_SUBTRACT(pScreen, &pWin->valdata->after.exposed,
-			&pWin->clipList, pValid->over);
-	/*
-	 * compute exposed regions of the border
-	 */
-	REGION_SUBTRACT(pScreen, &pWin->valdata->after.borderExposed,
-			     &pWin->borderClip, &pWin->winSize);
-	REGION_SUBTRACT(pScreen, &pWin->valdata->after.borderExposed,
-			     &pWin->valdata->after.borderExposed, pValid->over);
-    } 
-
-    if(pTree && pTree->valdata) {
-	REGION_SUBTRACT(pScreen, &pTree->valdata->exposed,
-			&pTree->clipList, pValid->under);
-	REGION_SUBTRACT(pScreen, &pTree->valdata->borderExposed,
-			     &pTree->borderClip, &pWin->winSize);
-	REGION_SUBTRACT(pScreen, &pTree->valdata->borderExposed,
-			     &pTree->valdata->borderExposed, pValid->under);    
-    } else if (!pWin->valdata)
-	return WT_NOMATCH;
-
-    return WT_WALKCHILDREN;
-}
-
-static void
-miOverlayResizeWindow(
-    WindowPtr pWin,
-    int x, int y,
-    unsigned int w, unsigned int h,
-    WindowPtr pSib
-){
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-    WindowPtr pParent;
-    miOverlayTreePtr tChild, pTree;
-    Bool WasViewable = (Bool)(pWin->viewable);
-    unsigned short width = pWin->drawable.width;
-    unsigned short height = pWin->drawable.height;
-    short oldx = pWin->drawable.x;
-    short oldy = pWin->drawable.y;
-    int bw = wBorderWidth (pWin);
-    short dw, dh;
-    DDXPointRec oldpt;
-    RegionPtr oldRegion = NULL, oldRegion2 = NULL;
-    WindowPtr pFirstChange;
-    WindowPtr pChild;
-    RegionPtr	gravitate[StaticGravity + 1];
-    RegionPtr	gravitate2[StaticGravity + 1];
-    unsigned 	g;
-    int		nx, ny;		/* destination x,y */
-    int		newx, newy;	/* new inner window position */
-    RegionPtr	pRegion = NULL;
-    RegionPtr	destClip, destClip2;
-    RegionPtr	oldWinClip = NULL, oldWinClip2 = NULL;	
-    RegionPtr	borderVisible = NullRegion; 
-    RegionPtr	borderVisible2 = NullRegion; 
-    Bool	shrunk = FALSE; /* shrunk in an inner dimension */
-    Bool	moved = FALSE;	/* window position changed */
-    Bool	doUnderlay;
-
-    /* if this is a root window, can't be resized */
-    if (!(pParent = pWin->parent))
-	return ;
-
-    pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
-    doUnderlay = ((pTree) || HasUnderlayChildren(pWin));
-    newx = pParent->drawable.x + x + bw;
-    newy = pParent->drawable.y + y + bw;
-    if (WasViewable)
-    {
-	/*
-	 * save the visible region of the window
-	 */
-	oldRegion = REGION_CREATE(pScreen, NullBox, 1);
-	REGION_COPY(pScreen, oldRegion, &pWin->winSize);
-	if(doUnderlay) {
-	    oldRegion2 = REGION_CREATE(pScreen, NullBox, 1);
-	    REGION_COPY(pScreen, oldRegion2, &pWin->winSize);
-	}
-
-	/*
-	 * categorize child windows into regions to be moved
-	 */
-	for (g = 0; g <= StaticGravity; g++)
-	    gravitate[g] = gravitate2[g] = NULL;
-	for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) {
-	    g = pChild->winGravity;
-	    if (g != UnmapGravity) {
-		if (!gravitate[g])
-		    gravitate[g] = REGION_CREATE(pScreen, NullBox, 1);
-		REGION_UNION(pScreen, gravitate[g],
-				   gravitate[g], &pChild->borderClip);
-		
-		if(doUnderlay) {
-		    if (!gravitate2[g])
-			gravitate2[g] = REGION_CREATE(pScreen, NullBox, 0);
-		
-		    if((tChild = MIOVERLAY_GET_WINDOW_TREE(pChild))) {
-		        REGION_UNION(pScreen, gravitate2[g],
-				   gravitate2[g], &tChild->borderClip);
-		    } else 
-			CollectUnderlayChildrenRegions(pChild, gravitate2[g]);
-		}
-	    } else {
-		UnmapWindow(pChild, TRUE);
-	    }
-	}
-	(*pScreen->MarkOverlappedWindows)(pWin, pWin, NULL);
-
-
-	oldWinClip = oldWinClip2 = NULL;
-	if (pWin->bitGravity != ForgetGravity) {
-	    oldWinClip = REGION_CREATE(pScreen, NullBox, 1);
-	    REGION_COPY(pScreen, oldWinClip, &pWin->clipList);
-	    if(pTree) {
-		oldWinClip2 = REGION_CREATE(pScreen, NullBox, 1);
-		REGION_COPY(pScreen, oldWinClip2, &pTree->clipList);
-	    }
-	}
-	/*
-	 * if the window is changing size, borderExposed
-	 * can't be computed correctly without some help.
-	 */
-	if (pWin->drawable.height > h || pWin->drawable.width > w)
-	    shrunk = TRUE;
-
-	if (newx != oldx || newy != oldy)
-	    moved = TRUE;
-
-	if ((pWin->drawable.height != h || pWin->drawable.width != w) &&
-	    HasBorder (pWin))
-	{
-	    borderVisible = REGION_CREATE(pScreen, NullBox, 1);
-	    if(pTree)
-		borderVisible2 = REGION_CREATE(pScreen, NullBox, 1);
-	    /* for tiled borders, we punt and draw the whole thing */
-	    if (pWin->borderIsPixel || !moved)
-	    {
-		if (shrunk || moved)
-		    REGION_SUBTRACT(pScreen, borderVisible,
-					  &pWin->borderClip,
-					  &pWin->winSize);
-		else
-		    REGION_COPY(pScreen, borderVisible,
-					    &pWin->borderClip);
-		if(pTree) {
-		    if (shrunk || moved)
-			REGION_SUBTRACT(pScreen, borderVisible,
-					  &pTree->borderClip,
-					  &pWin->winSize);
-		    else
-			REGION_COPY(pScreen, borderVisible,
-					    &pTree->borderClip);
-		}
-	    }
-	}
-    }
-    pWin->origin.x = x + bw;
-    pWin->origin.y = y + bw;
-    pWin->drawable.height = h;
-    pWin->drawable.width = w;
-
-    x = pWin->drawable.x = newx;
-    y = pWin->drawable.y = newy;
-
-    SetWinSize (pWin);
-    SetBorderSize (pWin);
-
-    dw = (int)w - (int)width;
-    dh = (int)h - (int)height;
-    ResizeChildrenWinSize(pWin, x - oldx, y - oldy, dw, dh);
-
-    /* let the hardware adjust background and border pixmaps, if any */
-    (*pScreen->PositionWindow)(pWin, x, y);
-
-    pFirstChange = MoveWindowInStack(pWin, pSib);
-
-    if (WasViewable) {
-	pRegion = REGION_CREATE(pScreen, NullBox, 1);
-
-	(*pScreen->MarkOverlappedWindows)(pWin, pFirstChange, NULL);
-
-	pWin->valdata->before.resized = TRUE;
-	pWin->valdata->before.borderVisible = borderVisible;
-	if(pTree)
-	    pTree->valdata->borderVisible = borderVisible2;
-
-
-	(*pScreen->ValidateTree)(pWin->parent, pFirstChange, VTOther);
-	/*
-	 * the entire window is trashed unless bitGravity
-	 * recovers portions of it
-	 */
-	REGION_COPY(pScreen, &pWin->valdata->after.exposed, &pWin->clipList);
-	if(pTree)
-	    REGION_COPY(pScreen, &pTree->valdata->exposed, &pTree->clipList);
-    }
-
-    GravityTranslate (x, y, oldx, oldy, dw, dh, pWin->bitGravity, &nx, &ny);
-
-    if (WasViewable) {
-	miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
-	miOverlayTwoRegions TwoRegions;
-
-	/* avoid the border */
-	if (HasBorder (pWin)) {
-	    int	offx, offy, dx, dy;
-
-	    /* kruft to avoid double translates for each gravity */
-	    offx = 0;
-	    offy = 0;
-	    for (g = 0; g <= StaticGravity; g++) {
-		if (!gravitate[g] && !gravitate2[g])
-		    continue;
-
-		/* align winSize to gravitate[g].
-		 * winSize is in new coordinates,
-		 * gravitate[g] is still in old coordinates */
-		GravityTranslate (x, y, oldx, oldy, dw, dh, g, &nx, &ny);
-		
-		dx = (oldx - nx) - offx;
-		dy = (oldy - ny) - offy;
-		if (dx || dy) {
-		    REGION_TRANSLATE(pScreen, &pWin->winSize, dx, dy);
-		    offx += dx;
-		    offy += dy;
-		}
-		if(gravitate[g])
-		    REGION_INTERSECT(pScreen, gravitate[g], gravitate[g],
-				 &pWin->winSize);
-		if(gravitate2[g])
-		    REGION_INTERSECT(pScreen, gravitate2[g], gravitate2[g],
-				 &pWin->winSize);
-	    }
-	    /* get winSize back where it belongs */
-	    if (offx || offy)
-		REGION_TRANSLATE(pScreen, &pWin->winSize, -offx, -offy);
-	}
-	/*
-	 * add screen bits to the appropriate bucket
-	 */
-
-	if (oldWinClip2)
-	{
-	    REGION_COPY(pScreen, pRegion, oldWinClip2);
-	    REGION_TRANSLATE(pScreen, pRegion, nx - oldx, ny - oldy);
-	    REGION_INTERSECT(pScreen, oldWinClip2, pRegion, &pTree->clipList);
-
-	    for (g = pWin->bitGravity + 1; g <= StaticGravity; g++) {
-		if (gravitate2[g])
-		    REGION_SUBTRACT(pScreen, oldWinClip2, oldWinClip2,
-					gravitate2[g]);
-	    }
-	    REGION_TRANSLATE(pScreen, oldWinClip2, oldx - nx, oldy - ny);
-	    g = pWin->bitGravity;
-	    if (!gravitate2[g])
-		gravitate2[g] = oldWinClip2;
-	    else {
-		REGION_UNION(pScreen,gravitate2[g],gravitate2[g],oldWinClip2);
-		REGION_DESTROY(pScreen, oldWinClip2);
-	    }
-	}
-
-	if (oldWinClip)
-	{
-	    /*
-	     * clip to new clipList
-	     */
-	    REGION_COPY(pScreen, pRegion, oldWinClip);
-	    REGION_TRANSLATE(pScreen, pRegion, nx - oldx, ny - oldy);
-	    REGION_INTERSECT(pScreen, oldWinClip, pRegion, &pWin->clipList);
-	    /*
-	     * don't step on any gravity bits which will be copied after this
-	     * region.	Note -- this assumes that the regions will be copied
-	     * in gravity order.
-	     */
-	    for (g = pWin->bitGravity + 1; g <= StaticGravity; g++) {
-		if (gravitate[g])
-		    REGION_SUBTRACT(pScreen, oldWinClip, oldWinClip,
-					gravitate[g]);
-	    }
-	    REGION_TRANSLATE(pScreen, oldWinClip, oldx - nx, oldy - ny);
-	    g = pWin->bitGravity;
-	    if (!gravitate[g])
-		gravitate[g] = oldWinClip;
-	    else {
-		REGION_UNION(pScreen, gravitate[g], gravitate[g], oldWinClip);
-		REGION_DESTROY(pScreen, oldWinClip);
-	    }
-	}
-
-	/*
-	 * move the bits on the screen
-	 */
-
-	destClip = destClip2 = NULL;
-
-	for (g = 0; g <= StaticGravity; g++) {
-	    if (!gravitate[g] && !gravitate2[g])
-		continue;
-
-	    GravityTranslate (x, y, oldx, oldy, dw, dh, g, &nx, &ny);
-
-	    oldpt.x = oldx + (x - nx);
-	    oldpt.y = oldy + (y - ny);
-
-	    /* Note that gravitate[g] is *translated* by CopyWindow */
-
-	    /* only copy the remaining useful bits */
-
-	    if(gravitate[g])
-		REGION_INTERSECT(pScreen, gravitate[g], 
-				 gravitate[g], oldRegion);
-	    if(gravitate2[g])
-		REGION_INTERSECT(pScreen, gravitate2[g], 
-				 gravitate2[g], oldRegion2);
-
-	    /* clip to not overwrite already copied areas */
-
-	    if (destClip && gravitate[g]) {
-		REGION_TRANSLATE(pScreen, destClip, oldpt.x - x, oldpt.y - y);
-		REGION_SUBTRACT(pScreen, gravitate[g], gravitate[g], destClip);
-		REGION_TRANSLATE(pScreen, destClip, x - oldpt.x, y - oldpt.y);
-	    }
-	    if (destClip2 && gravitate2[g]) {
-		REGION_TRANSLATE(pScreen, destClip2, oldpt.x - x, oldpt.y - y);
-		REGION_SUBTRACT(pScreen,gravitate2[g],gravitate2[g],destClip2);
-		REGION_TRANSLATE(pScreen, destClip2, x - oldpt.x, y - oldpt.y);
-	    }
-
-	    /* and move those bits */
-
-	    if (oldpt.x != x || oldpt.y != y) {
-		if(gravitate2[g]) {
-		    pPriv->copyUnderlay = TRUE;
-		    (*pWin->drawable.pScreen->CopyWindow)(
-						pWin, oldpt, gravitate2[g]);
-		}
-		if(gravitate[g]) {
-		    pPriv->copyUnderlay = FALSE;
-		    (*pWin->drawable.pScreen->CopyWindow)(
-						pWin, oldpt, gravitate[g]);
-		}
-	    }
-
-	    /* remove any overwritten bits from the remaining useful bits */
-
-	    if(gravitate[g])
-		REGION_SUBTRACT(pScreen, oldRegion, oldRegion, gravitate[g]);
-	    if(gravitate2[g])
-		REGION_SUBTRACT(pScreen, oldRegion2, oldRegion2, gravitate2[g]);
-
-	    /*
-	     * recompute exposed regions of child windows
-	     */
-	
-
-	    for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) {
-		if (pChild->winGravity != g)
-		    continue;
-
-		TwoRegions.over = gravitate[g];
-		TwoRegions.under = gravitate2[g];
-
-		TraverseTree (pChild, miOverlayRecomputeExposures, 
-					(pointer)(&TwoRegions));
-	    }
-
-	    /*
-	     * remove the successfully copied regions of the
-	     * window from its exposed region
-	     */
-
-	    if (g == pWin->bitGravity) {
-		if(gravitate[g])
-		    REGION_SUBTRACT(pScreen, &pWin->valdata->after.exposed,
-				&pWin->valdata->after.exposed, gravitate[g]);
-		if(gravitate2[g] && pTree) 
-		    REGION_SUBTRACT(pScreen, &pTree->valdata->exposed,
-				&pTree->valdata->exposed, gravitate2[g]);
-	    }
-	    if(gravitate[g]) {
-		if (!destClip)
-		    destClip = gravitate[g];
-		else {
-		    REGION_UNION(pScreen, destClip, destClip, gravitate[g]);
-		    REGION_DESTROY(pScreen, gravitate[g]);
-		}
-	    }
-	    if(gravitate2[g]) {
-		if (!destClip2)
-		    destClip2 = gravitate2[g];
-		else {
-		    REGION_UNION(pScreen, destClip2, destClip2, gravitate2[g]);
-		    REGION_DESTROY(pScreen, gravitate2[g]);
-		}
-	    }
-	}
-
-	REGION_DESTROY(pScreen, pRegion);
-	REGION_DESTROY(pScreen, oldRegion);
-	if(doUnderlay)
-	    REGION_DESTROY(pScreen, oldRegion2);
-	if (destClip)
-	    REGION_DESTROY(pScreen, destClip);
-	if (destClip2)
-	    REGION_DESTROY(pScreen, destClip2);
-	(*pScreen->HandleExposures)(pWin->parent);
-	if (pScreen->PostValidateTree)
-	    (*pScreen->PostValidateTree)(pWin->parent, pFirstChange, VTOther);
-    }
-    if (pWin->realized)
-	WindowsRestructured ();
-}
-
-
-static void
-miOverlaySetShape(WindowPtr pWin)
-{
-    Bool	WasViewable = (Bool)(pWin->viewable);
-    ScreenPtr 	pScreen = pWin->drawable.pScreen;
-
-    if (WasViewable) {
-	(*pScreen->MarkOverlappedWindows)(pWin, pWin, NULL);
-
-	if (HasBorder (pWin)) {
-	    RegionPtr borderVisible;
-
-	    borderVisible = REGION_CREATE(pScreen, NullBox, 1);
-	    REGION_SUBTRACT(pScreen, borderVisible,
-				      &pWin->borderClip, &pWin->winSize);
-	    pWin->valdata->before.borderVisible = borderVisible;
-	    pWin->valdata->before.resized = TRUE;
-	    if(IN_UNDERLAY(pWin)) {
-		miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
-		RegionPtr borderVisible2;
-
-		borderVisible2 = REGION_CREATE(pScreen, NULL, 1);
-		REGION_SUBTRACT(pScreen, borderVisible2,
-				      &pTree->borderClip, &pWin->winSize);
-		pTree->valdata->borderVisible = borderVisible2;
-	    }
-	}
-    }
-
-    SetWinSize (pWin);
-    SetBorderSize (pWin);
-
-    ResizeChildrenWinSize(pWin, 0, 0, 0, 0);
-
-    if (WasViewable) {
-	(*pScreen->MarkOverlappedWindows)(pWin, pWin, NULL);
-
-
-	(*pScreen->ValidateTree)(pWin->parent, NullWindow, VTOther);
-    }
-
-    if (WasViewable) {
-	(*pScreen->HandleExposures)(pWin->parent);
-	if (pScreen->PostValidateTree)
-	    (*pScreen->PostValidateTree)(pWin->parent, NullWindow, VTOther);
-    }
-    if (pWin->realized)
-	WindowsRestructured ();
-    CheckCursorConfinement(pWin);
-}
-
-
-
-static void
-miOverlayChangeBorderWidth(
-    WindowPtr pWin,
-    unsigned int width
-){
-    int oldwidth;
-    ScreenPtr pScreen;
-    Bool WasViewable = (Bool)(pWin->viewable);
-    Bool HadBorder;
-
-    oldwidth = wBorderWidth (pWin);
-    if (oldwidth == width)
-	return;
-    HadBorder = HasBorder(pWin);
-    pScreen = pWin->drawable.pScreen;
-    if (WasViewable && (width < oldwidth))
-	(*pScreen->MarkOverlappedWindows)(pWin, pWin, NULL);
-
-    pWin->borderWidth = width;
-    SetBorderSize (pWin);
-
-    if (WasViewable) {
-	if (width > oldwidth) {
-	    (*pScreen->MarkOverlappedWindows)(pWin, pWin, NULL);
-
-	    if (HadBorder) {
-		RegionPtr   borderVisible;
-		borderVisible = REGION_CREATE(pScreen, NULL, 1);
-		REGION_SUBTRACT(pScreen, borderVisible,
-				      &pWin->borderClip, &pWin->winSize);
-		pWin->valdata->before.borderVisible = borderVisible;
-		if(IN_UNDERLAY(pWin)) {
-		    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
-		    RegionPtr borderVisible2;
-
-		    borderVisible2 = REGION_CREATE(pScreen, NULL, 1);
-		    REGION_SUBTRACT(pScreen, borderVisible2,
-				      &pTree->borderClip, &pWin->winSize);
-		    pTree->valdata->borderVisible = borderVisible2;
-		}
-	    }
-	}
-	(*pScreen->ValidateTree)(pWin->parent, pWin, VTOther);
-	(*pScreen->HandleExposures)(pWin->parent);
-
-	if (pScreen->PostValidateTree)
-	    (*pScreen->PostValidateTree)(pWin->parent, pWin, VTOther);
-    }
-    if (pWin->realized)
-	WindowsRestructured ();
-}
-
-/*  We need this as an addition since the xf86 common code doesn't
-    know about the second tree which is static to this file.  */
-
-void
-miOverlaySetRootClip(ScreenPtr pScreen, Bool enable)
-{
-    WindowPtr pRoot = WindowTable[pScreen->myNum];
-    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pRoot);
-
-    MARK_UNDERLAY(pRoot);
-
-    if(enable) {
-	BoxRec box;
-	
-	box.x1 = 0;
-	box.y1 = 0;
-	box.x2 = pScreen->width;
-	box.y2 = pScreen->height;
-
-	REGION_RESET(pScreen, &pTree->borderClip, &box);
-    } else 
-	REGION_EMPTY(pScreen, &pTree->borderClip);
-
-    REGION_BREAK(pScreen, &pTree->clipList);
-}
-
-static void 
-miOverlayClearToBackground(
-    WindowPtr pWin,
-    int x, int y,
-    int w, int h,
-    Bool generateExposures
-)
-{
-    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
-    BoxRec box;
-    RegionRec reg;
-    RegionPtr pBSReg = NullRegion;
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-    miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);
-    RegionPtr clipList;
-    BoxPtr  extents;
-    int     x1, y1, x2, y2;
-
-    x1 = pWin->drawable.x + x;
-    y1 = pWin->drawable.y + y;
-    if (w)
-        x2 = x1 + (int) w;
-    else
-        x2 = x1 + (int) pWin->drawable.width - (int) x;
-    if (h)
-        y2 = y1 + h;    
-    else
-        y2 = y1 + (int) pWin->drawable.height - (int) y;
-
-    clipList = ((*pScreenPriv->InOverlay)(pWin)) ? &pWin->clipList :
-                                                 &pTree->clipList;
-
-    extents = REGION_EXTENTS(pScreen, clipList);
-    
-    if (x1 < extents->x1) x1 = extents->x1;
-    if (x2 > extents->x2) x2 = extents->x2;
-    if (y1 < extents->y1) y1 = extents->y1;
-    if (y2 > extents->y2) y2 = extents->y2;
-
-    if (x2 <= x1 || y2 <= y1) 
-        x2 = x1 = y2 = y1 = 0;
-
-    box.x1 = x1; box.x2 = x2;
-    box.y1 = y1; box.y2 = y2;
-
-    REGION_INIT(pScreen, &reg, &box, 1);
-
-    REGION_INTERSECT(pScreen, &reg, &reg, clipList);
-    if (generateExposures)
-        (*pScreen->WindowExposures)(pWin, &reg, pBSReg);
-    else if (pWin->backgroundState != None)
-	miPaintWindow(pWin, &reg, PW_BACKGROUND);
-    REGION_UNINIT(pScreen, &reg);
-    if (pBSReg)
-        REGION_DESTROY(pScreen, pBSReg);
-}
-
-
-/****************************************************************/
-
-/* not used */
-Bool
-miOverlayGetPrivateClips(
-    WindowPtr pWin,
-    RegionPtr *borderClip,
-    RegionPtr *clipList
-){
-    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
-	
-    if(pTree) {
- 	*borderClip = &(pTree->borderClip);
-	*clipList = &(pTree->clipList);
-	return TRUE;
-    }
-
-    *borderClip = *clipList = NULL;
-
-    return FALSE;
-}
-
-void
-miOverlaySetTransFunction (
-   ScreenPtr pScreen, 
-   miOverlayTransFunc transFunc
-){
-    MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->MakeTransparent = transFunc;
-}
-
-Bool
-miOverlayCopyUnderlay(ScreenPtr pScreen)
-{
-    return MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->copyUnderlay;
-}
-
-void
-miOverlayComputeCompositeClip(GCPtr pGC, WindowPtr pWin)
-{
-    ScreenPtr       pScreen = pGC->pScreen;
-    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
-    RegionPtr       pregWin;
-    Bool            freeTmpClip, freeCompClip;
-
-    if(!pTree) {
-	miComputeCompositeClip(pGC, &pWin->drawable);
-	return;
-    }
-
-    if (pGC->subWindowMode == IncludeInferiors) {
-	pregWin = REGION_CREATE(pScreen, NullBox, 1);
-	freeTmpClip = TRUE;
-	if (pWin->parent || (screenIsSaved != SCREEN_SAVER_ON) ||
-		!HasSaverWindow (pScreen->myNum))
-	{
-            REGION_INTERSECT(pScreen,pregWin,&pTree->borderClip,&pWin->winSize);
-	}
-    } else {
-	pregWin = &pTree->clipList;
-	freeTmpClip = FALSE;
-    }
-    freeCompClip = pGC->freeCompClip;
-    if (pGC->clientClipType == CT_NONE) {
-	if (freeCompClip) 
-	    REGION_DESTROY(pScreen, pGC->pCompositeClip);
-	pGC->pCompositeClip = pregWin;
-	pGC->freeCompClip = freeTmpClip;
-    } else {
-	REGION_TRANSLATE(pScreen, pGC->clientClip,
-				pWin->drawable.x + pGC->clipOrg.x,
-				pWin->drawable.y + pGC->clipOrg.y);
-
-	if (freeCompClip) {
-	    REGION_INTERSECT(pGC->pScreen, pGC->pCompositeClip,
-					    pregWin, pGC->clientClip);
-	    if (freeTmpClip)
-		REGION_DESTROY(pScreen, pregWin);
-	} else if (freeTmpClip) {
-	    REGION_INTERSECT(pScreen, pregWin, pregWin, pGC->clientClip);
-	    pGC->pCompositeClip = pregWin;
-	} else {
-	    pGC->pCompositeClip = REGION_CREATE(pScreen, NullBox, 0);
-	    REGION_INTERSECT(pScreen, pGC->pCompositeClip,
-				       pregWin, pGC->clientClip);
-	}
-	pGC->freeCompClip = TRUE;
-	REGION_TRANSLATE(pScreen, pGC->clientClip,
-				-(pWin->drawable.x + pGC->clipOrg.x),
-				-(pWin->drawable.y + pGC->clipOrg.y));
-    }
-}
-
-Bool
-miOverlayCollectUnderlayRegions(
-    WindowPtr pWin,
-    RegionPtr *region
-){
-    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
-
-    if(pTree) {
-	*region = &pTree->borderClip;
-	return FALSE;
-    }
-
-    *region = REGION_CREATE(pWin->drawable.pScreen, NullBox, 0);
-    
-    CollectUnderlayChildrenRegions(pWin, *region);
-
-    return TRUE;
-}
-
-
-static miOverlayTreePtr
-DoLeaf(
-    WindowPtr pWin, 
-    miOverlayTreePtr parent, 
-    miOverlayTreePtr prevSib
-){
-    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
-    
-    pTree->parent = parent;
-    pTree->firstChild = NULL;
-    pTree->lastChild = NULL;
-    pTree->prevSib = prevSib;
-    pTree->nextSib = NULL;
-
-    if(prevSib)
-	prevSib->nextSib = pTree;
-
-    if(!parent->firstChild)
-	parent->firstChild = parent->lastChild = pTree;
-    else if(parent->lastChild == prevSib)
-	parent->lastChild = pTree;
-   
-    return pTree;
-}
-
-static void 
-RebuildTree(WindowPtr pWin)
-{
-    miOverlayTreePtr parent, prevSib, tChild;
-    WindowPtr pChild;
-
-    prevSib = tChild = NULL;
-
-    pWin = pWin->parent;
-
-    while(IN_OVERLAY(pWin))
-	pWin = pWin->parent;
-
-    parent = MIOVERLAY_GET_WINDOW_TREE(pWin);
-
-    pChild = pWin->firstChild;
-    parent->firstChild = parent->lastChild = NULL;
-
-    while(1) {
-	if(IN_UNDERLAY(pChild))
-	   prevSib = tChild = DoLeaf(pChild, parent, prevSib);
-
-	if(pChild->firstChild) {
-	    if(IN_UNDERLAY(pChild)) {
-		parent = tChild;
-		prevSib = NULL;
-	    }
-	    pChild = pChild->firstChild;
-	    continue;
-	}
-
-	while(!pChild->nextSib) {
-	    pChild = pChild->parent;
-	    if(pChild == pWin) return;
-	    if(IN_UNDERLAY(pChild)) {
-		prevSib = tChild = MIOVERLAY_GET_WINDOW_TREE(pChild);
-		parent = tChild->parent;
-	    }
-	}
-
-	pChild = pChild->nextSib;
-    }
-}
-
-
-static Bool
-HasUnderlayChildren(WindowPtr pWin)
-{
-    WindowPtr pChild;
-
-    if(!(pChild = pWin->firstChild)) 
-	return FALSE;
-
-    while(1) {
-	if(IN_UNDERLAY(pChild))
-	   return TRUE;
-
-	if(pChild->firstChild) {
-	    pChild = pChild->firstChild;
-	    continue;
-	}
-
-	while(!pChild->nextSib && (pWin != pChild))
-	    pChild = pChild->parent;
-
-	if(pChild == pWin) break;
-
-	pChild = pChild->nextSib;
-    }
-
-    return FALSE;
-}
-
-
-static Bool
-CollectUnderlayChildrenRegions(WindowPtr pWin, RegionPtr pReg)
-{
-    WindowPtr pChild;
-    miOverlayTreePtr pTree;
-    Bool hasUnderlay;
-
-    if(!(pChild = pWin->firstChild)) 
-	return FALSE;
-
-    hasUnderlay = FALSE;
-
-    while(1) {
-	if((pTree = MIOVERLAY_GET_WINDOW_TREE(pChild))) {
-	    REGION_APPEND(pScreen, pReg, &pTree->borderClip);
-	    hasUnderlay = TRUE;
-	} else
-	if(pChild->firstChild) {
-	    pChild = pChild->firstChild;
-	    continue;
-	}
-
-	while(!pChild->nextSib && (pWin != pChild))
-	    pChild = pChild->parent;
-
-	if(pChild == pWin) break;
-
-	pChild = pChild->nextSib;
-    }
-
-    if(hasUnderlay) {
-	Bool overlap;
-	REGION_VALIDATE(pScreen, pReg, &overlap);
-    } 
-
-    return hasUnderlay;
-}
-
-
-static void 
-MarkUnderlayWindow(WindowPtr pWin)
-{
-    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);
-
-    if(pTree->valdata) return;
-    pTree->valdata = (miOverlayValDataPtr)xnfalloc(sizeof(miOverlayValDataRec));
-    pTree->valdata->oldAbsCorner.x = pWin->drawable.x;
-    pTree->valdata->oldAbsCorner.y = pWin->drawable.y;
-    pTree->valdata->borderVisible = NullRegion;
-}
+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#ifdef CreateWindow

+#undef CreateWindow

+#endif

+

+#include <X11/X.h>

+#include "scrnintstr.h"

+#include "validate.h"

+#include "windowstr.h"

+#include "mi.h"

+#include "gcstruct.h"

+#include "regionstr.h"

+#include "privates.h"

+#include "mivalidate.h"

+#include "mioverlay.h"

+#include "migc.h"

+

+#include "globals.h"

+

+

+typedef struct {

+   RegionRec 	exposed;

+   RegionRec	borderExposed;

+   RegionPtr	borderVisible;

+   DDXPointRec	oldAbsCorner;

+} miOverlayValDataRec, *miOverlayValDataPtr;

+

+typedef struct _TreeRec {

+   WindowPtr		pWin;

+   struct _TreeRec 	*parent;

+   struct _TreeRec 	*firstChild; 

+   struct _TreeRec 	*lastChild; 

+   struct _TreeRec 	*prevSib; 

+   struct _TreeRec 	*nextSib;

+   RegionRec 		borderClip;

+   RegionRec 		clipList;

+   unsigned		visibility;

+   miOverlayValDataPtr  valdata;

+} miOverlayTreeRec, *miOverlayTreePtr;

+

+typedef struct {

+   miOverlayTreePtr	tree;

+} miOverlayWindowRec, *miOverlayWindowPtr;

+

+typedef struct {

+   CloseScreenProcPtr   	CloseScreen;

+   CreateWindowProcPtr  	CreateWindow;

+   DestroyWindowProcPtr 	DestroyWindow;

+   UnrealizeWindowProcPtr	UnrealizeWindow;

+   RealizeWindowProcPtr		RealizeWindow;

+   miOverlayTransFunc		MakeTransparent;

+   miOverlayInOverlayFunc	InOverlay;

+   Bool				underlayMarked;

+   Bool				copyUnderlay;

+} miOverlayScreenRec, *miOverlayScreenPtr;

+

+static int miOverlayWindowKeyKeyIndex;

+static DevPrivateKey miOverlayWindowKey = &miOverlayWindowKeyKeyIndex;

+static int miOverlayScreenKeyIndex;

+static DevPrivateKey miOverlayScreenKey = &miOverlayScreenKeyIndex;

+

+static void RebuildTree(WindowPtr);

+static Bool HasUnderlayChildren(WindowPtr);

+static void MarkUnderlayWindow(WindowPtr);

+static Bool CollectUnderlayChildrenRegions(WindowPtr, RegionPtr);

+

+static Bool miOverlayCloseScreen(int, ScreenPtr);

+static Bool miOverlayCreateWindow(WindowPtr);

+static Bool miOverlayDestroyWindow(WindowPtr);

+static Bool miOverlayUnrealizeWindow(WindowPtr);

+static Bool miOverlayRealizeWindow(WindowPtr);

+static void miOverlayMarkWindow(WindowPtr);

+static void miOverlayReparentWindow(WindowPtr, WindowPtr);

+static void miOverlayRestackWindow(WindowPtr, WindowPtr);

+static Bool miOverlayMarkOverlappedWindows(WindowPtr, WindowPtr, WindowPtr*);

+static void miOverlayMarkUnrealizedWindow(WindowPtr, WindowPtr, Bool);

+static int miOverlayValidateTree(WindowPtr, WindowPtr, VTKind);

+static void miOverlayHandleExposures(WindowPtr);

+static void miOverlayMoveWindow(WindowPtr, int, int, WindowPtr, VTKind);

+static void miOverlayWindowExposures(WindowPtr, RegionPtr, RegionPtr);

+static void miOverlayResizeWindow(WindowPtr, int, int, unsigned int,

+					unsigned int, WindowPtr);

+static void miOverlayClearToBackground(WindowPtr, int, int, int, int, Bool);

+

+static void miOverlaySetShape(WindowPtr);

+static void miOverlayChangeBorderWidth(WindowPtr, unsigned int);

+

+#define MIOVERLAY_GET_SCREEN_PRIVATE(pScreen) ((miOverlayScreenPtr) \

+	dixLookupPrivate(&(pScreen)->devPrivates, miOverlayScreenKey))

+#define MIOVERLAY_GET_WINDOW_PRIVATE(pWin) ((miOverlayWindowPtr) \

+	dixLookupPrivate(&(pWin)->devPrivates, miOverlayWindowKey))

+#define MIOVERLAY_GET_WINDOW_TREE(pWin) \

+	(MIOVERLAY_GET_WINDOW_PRIVATE(pWin)->tree)

+

+#define IN_UNDERLAY(w) MIOVERLAY_GET_WINDOW_TREE(w)

+#define IN_OVERLAY(w) !MIOVERLAY_GET_WINDOW_TREE(w)

+

+#define MARK_OVERLAY(w) miMarkWindow(w)

+#define MARK_UNDERLAY(w) MarkUnderlayWindow(w)

+

+#define HasParentRelativeBorder(w) (!(w)->borderIsPixel && \

+                                    HasBorder(w) && \

+                                    (w)->backgroundState == ParentRelative)

+

+Bool

+miInitOverlay(

+    ScreenPtr pScreen, 

+    miOverlayInOverlayFunc inOverlayFunc,

+    miOverlayTransFunc transFunc

+){

+    miOverlayScreenPtr	pScreenPriv;

+

+    if(!inOverlayFunc || !transFunc) return FALSE;

+

+    if(!dixRequestPrivate(miOverlayWindowKey, sizeof(miOverlayWindowRec)))

+	return FALSE;

+

+    if(!(pScreenPriv = malloc(sizeof(miOverlayScreenRec))))

+	return FALSE;

+

+    dixSetPrivate(&pScreen->devPrivates, miOverlayScreenKey, pScreenPriv);

+

+    pScreenPriv->InOverlay = inOverlayFunc;

+    pScreenPriv->MakeTransparent = transFunc;

+    pScreenPriv->underlayMarked = FALSE;

+

+

+    pScreenPriv->CloseScreen = pScreen->CloseScreen;

+    pScreenPriv->CreateWindow = pScreen->CreateWindow;

+    pScreenPriv->DestroyWindow = pScreen->DestroyWindow;

+    pScreenPriv->UnrealizeWindow = pScreen->UnrealizeWindow;

+    pScreenPriv->RealizeWindow = pScreen->RealizeWindow;

+

+    pScreen->CloseScreen = miOverlayCloseScreen;

+    pScreen->CreateWindow = miOverlayCreateWindow;

+    pScreen->DestroyWindow = miOverlayDestroyWindow;

+    pScreen->UnrealizeWindow = miOverlayUnrealizeWindow;

+    pScreen->RealizeWindow = miOverlayRealizeWindow;

+

+    pScreen->ReparentWindow = miOverlayReparentWindow;

+    pScreen->RestackWindow = miOverlayRestackWindow;

+    pScreen->MarkOverlappedWindows = miOverlayMarkOverlappedWindows;

+    pScreen->MarkUnrealizedWindow = miOverlayMarkUnrealizedWindow;

+    pScreen->ValidateTree = miOverlayValidateTree;

+    pScreen->HandleExposures = miOverlayHandleExposures;

+    pScreen->MoveWindow = miOverlayMoveWindow;

+    pScreen->WindowExposures = miOverlayWindowExposures;

+    pScreen->ResizeWindow = miOverlayResizeWindow;

+    pScreen->MarkWindow = miOverlayMarkWindow;

+    pScreen->ClearToBackground = miOverlayClearToBackground;

+    pScreen->SetShape = miOverlaySetShape;

+    pScreen->ChangeBorderWidth = miOverlayChangeBorderWidth;

+

+    return TRUE;

+}

+

+

+static Bool 

+miOverlayCloseScreen(int i, ScreenPtr pScreen)

+{

+   miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);

+

+   pScreen->CloseScreen = pScreenPriv->CloseScreen; 

+   pScreen->CreateWindow = pScreenPriv->CreateWindow;

+   pScreen->DestroyWindow = pScreenPriv->DestroyWindow;

+   pScreen->UnrealizeWindow = pScreenPriv->UnrealizeWindow;

+   pScreen->RealizeWindow = pScreenPriv->RealizeWindow;

+

+   free(pScreenPriv);

+

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

+}

+

+

+static Bool 

+miOverlayCreateWindow(WindowPtr pWin)

+{

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+    miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);

+    miOverlayWindowPtr pWinPriv = MIOVERLAY_GET_WINDOW_PRIVATE(pWin);

+    miOverlayTreePtr pTree = NULL;

+    Bool result = TRUE;

+

+    pWinPriv->tree = NULL;

+

+    if(!pWin->parent || !((*pScreenPriv->InOverlay)(pWin))) {

+	if(!(pTree = (miOverlayTreePtr)calloc(1, sizeof(miOverlayTreeRec))))

+	   return FALSE;

+    }

+

+    if(pScreenPriv->CreateWindow) {

+	pScreen->CreateWindow = pScreenPriv->CreateWindow;

+	result = (*pScreen->CreateWindow)(pWin);

+	pScreen->CreateWindow = miOverlayCreateWindow;

+    }

+	

+    if (pTree) {

+	if(result) {

+	    pTree->pWin = pWin;

+	    pTree->visibility = VisibilityNotViewable;

+	    pWinPriv->tree = pTree;

+	    if(pWin->parent) {

+		REGION_NULL(pScreen, &(pTree->borderClip));

+		REGION_NULL(pScreen, &(pTree->clipList));

+		RebuildTree(pWin);

+	    } else {

+		BoxRec fullBox;

+		fullBox.x1 = 0;

+		fullBox.y1 = 0;

+		fullBox.x2 = pScreen->width;

+		fullBox.y2 = pScreen->height;

+		REGION_INIT(pScreen, &(pTree->borderClip), &fullBox, 1);

+		REGION_INIT(pScreen, &(pTree->clipList), &fullBox, 1);

+	    }

+	} else free(pTree);

+    }

+

+    return TRUE;

+}

+

+

+static Bool 

+miOverlayDestroyWindow(WindowPtr pWin)

+{

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+    miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);

+    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);

+    Bool result = TRUE;

+

+    if (pTree) {

+	if(pTree->prevSib)

+	   pTree->prevSib->nextSib = pTree->nextSib;

+	else if(pTree->parent)

+	   pTree->parent->firstChild = pTree->nextSib;

+

+	if(pTree->nextSib)

+	   pTree->nextSib->prevSib = pTree->prevSib;

+	else if(pTree->parent)

+	   pTree->parent->lastChild = pTree->prevSib;

+

+	REGION_UNINIT(pScreen, &(pTree->borderClip));

+	REGION_UNINIT(pScreen, &(pTree->clipList));

+	free(pTree);

+    }

+

+    if(pScreenPriv->DestroyWindow) {

+	pScreen->DestroyWindow = pScreenPriv->DestroyWindow;

+	result = (*pScreen->DestroyWindow)(pWin);

+	pScreen->DestroyWindow = miOverlayDestroyWindow;

+    }

+

+    return result;

+}

+

+static Bool 

+miOverlayUnrealizeWindow(WindowPtr pWin)

+{

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+    miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);

+    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);

+    Bool result = TRUE;

+

+    if(pTree) pTree->visibility = VisibilityNotViewable;

+

+    if(pScreenPriv->UnrealizeWindow) {

+	pScreen->UnrealizeWindow = pScreenPriv->UnrealizeWindow;

+	result = (*pScreen->UnrealizeWindow)(pWin);

+	pScreen->UnrealizeWindow = miOverlayUnrealizeWindow;

+    }

+

+    return result;

+}

+

+

+static Bool 

+miOverlayRealizeWindow(WindowPtr pWin)

+{

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+    miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);

+    Bool result = TRUE;

+

+    if(pScreenPriv->RealizeWindow) {

+	pScreen->RealizeWindow = pScreenPriv->RealizeWindow;

+	result = (*pScreen->RealizeWindow)(pWin);

+	pScreen->RealizeWindow = miOverlayRealizeWindow;

+    }

+

+    /* we only need to catch the root window realization */

+

+    if(result && !pWin->parent && !((*pScreenPriv->InOverlay)(pWin)))

+    {

+	BoxRec box;

+	box.x1 = box.y1 = 0;

+	box.x2 = pWin->drawable.width;

+	box.y2 = pWin->drawable.height;

+	(*pScreenPriv->MakeTransparent)(pScreen, 1, &box);

+    }

+

+    return result;

+}

+

+

+static void 

+miOverlayReparentWindow(WindowPtr pWin, WindowPtr pPriorParent)

+{

+    if(IN_UNDERLAY(pWin) || HasUnderlayChildren(pWin)) {

+	/* This could probably be more optimal */

+	RebuildTree(WindowTable[pWin->drawable.pScreen->myNum]->firstChild);

+    }	

+}

+

+static void 

+miOverlayRestackWindow(WindowPtr pWin, WindowPtr oldNextSib)

+{

+    if(IN_UNDERLAY(pWin) || HasUnderlayChildren(pWin)) {

+	/* This could probably be more optimal */

+	RebuildTree(pWin);

+    }	

+}

+

+

+static Bool

+miOverlayMarkOverlappedWindows(

+    WindowPtr pWin,

+    WindowPtr pFirst,

+    WindowPtr *pLayerWin

+){

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+    WindowPtr pChild, pLast;

+    Bool overMarked, underMarked, doUnderlay, markAll;

+    miOverlayTreePtr pTree = NULL, tLast, tChild;

+    BoxPtr box;

+    

+    overMarked = underMarked = markAll = FALSE;

+

+    if(pLayerWin) *pLayerWin = pWin; /* hah! */

+

+    doUnderlay = (IN_UNDERLAY(pWin) || HasUnderlayChildren(pWin));

+

+    box = REGION_EXTENTS(pScreen, &pWin->borderSize);

+

+    if((pChild = pFirst)) {

+	pLast = pChild->parent->lastChild;

+	while (1) {

+	    if (pChild == pWin) markAll = TRUE;

+

+	    if(doUnderlay && IN_UNDERLAY(pChild))

+		pTree = MIOVERLAY_GET_WINDOW_TREE(pChild);

+

+	    if(pChild->viewable) {

+                if (REGION_BROKEN (pScreen, &pChild->winSize))

+                    SetWinSize (pChild);

+                if (REGION_BROKEN (pScreen, &pChild->borderSize))

+		    SetBorderSize (pChild);

+

+	    	if (markAll || 

+		    RECT_IN_REGION(pScreen, &pChild->borderSize, box))

+		{

+		    MARK_OVERLAY(pChild);

+		    overMarked = TRUE;

+		    if(doUnderlay && IN_UNDERLAY(pChild)) {

+			MARK_UNDERLAY(pChild);

+			underMarked = TRUE;

+		    }

+		    if (pChild->firstChild) {

+			pChild = pChild->firstChild;

+			continue;

+		    }

+		}

+	    }

+	    while (!pChild->nextSib && (pChild != pLast)) {

+		pChild = pChild->parent;

+		if(doUnderlay && IN_UNDERLAY(pChild))

+		    pTree = MIOVERLAY_GET_WINDOW_TREE(pChild);

+	    }

+

+	    if(pChild == pWin) markAll = FALSE;

+

+	    if (pChild == pLast) break;

+

+	    pChild = pChild->nextSib;

+	}

+	if(overMarked)

+	    MARK_OVERLAY(pWin->parent);

+    } 

+

+    if(doUnderlay && !pTree) {

+	if(!(pTree = MIOVERLAY_GET_WINDOW_TREE(pWin))) {

+ 	    pChild = pWin->lastChild;

+	    while(1) {

+		if((pTree = MIOVERLAY_GET_WINDOW_TREE(pChild)))

+		    break;

+

+		if(pChild->lastChild) {

+		    pChild = pChild->lastChild;

+		    continue;

+		}

+

+		while(!pChild->prevSib) pChild = pChild->parent;

+

+		pChild = pChild->prevSib;

+	    }

+	}

+    }

+   

+    if(pTree && pTree->nextSib) {

+	tChild = pTree->parent->lastChild;

+	tLast = pTree->nextSib;	

+

+	while(1) {

+	    if(tChild->pWin->viewable) { 

+                if (REGION_BROKEN (pScreen, &tChild->pWin->winSize))

+                    SetWinSize (tChild->pWin);

+                if (REGION_BROKEN (pScreen, &tChild->pWin->borderSize))

+		    SetBorderSize (tChild->pWin);

+

+		if(RECT_IN_REGION(pScreen, &(tChild->pWin->borderSize), box)) 

+	        {

+		    MARK_UNDERLAY(tChild->pWin);

+		    underMarked = TRUE;

+	        }

+	    }

+

+	    if(tChild->lastChild) {

+		tChild = tChild->lastChild;

+		continue;

+	    }

+

+	    while(!tChild->prevSib && (tChild != tLast))

+		tChild = tChild->parent;

+

+	    if(tChild == tLast) break;

+

+	    tChild = tChild->prevSib;

+	}

+    }

+

+    if(underMarked) {

+	MARK_UNDERLAY(pTree->parent->pWin);

+	MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->underlayMarked = TRUE;	

+    }

+

+    return (underMarked || overMarked);

+}

+

+

+static void

+miOverlayComputeClips(

+    WindowPtr pParent, 

+    RegionPtr universe,

+    VTKind kind,

+    RegionPtr exposed

+){

+    ScreenPtr pScreen = pParent->drawable.pScreen;

+    int oldVis, newVis, dx, dy;

+    BoxRec borderSize;

+    RegionPtr borderVisible;

+    RegionRec childUniverse, childUnion;

+    miOverlayTreePtr tParent = MIOVERLAY_GET_WINDOW_TREE(pParent);

+    miOverlayTreePtr tChild;

+    Bool overlap;

+

+    borderSize.x1 = pParent->drawable.x - wBorderWidth(pParent);

+    borderSize.y1 = pParent->drawable.y - wBorderWidth(pParent);

+    dx = (int) pParent->drawable.x + (int) pParent->drawable.width + 

+						wBorderWidth(pParent);

+    if (dx > 32767) dx = 32767;

+    borderSize.x2 = dx;

+    dy = (int) pParent->drawable.y + (int) pParent->drawable.height + 

+						wBorderWidth(pParent);

+    if (dy > 32767) dy = 32767;

+    borderSize.y2 = dy;

+  

+    oldVis = tParent->visibility;

+    switch (RECT_IN_REGION( pScreen, universe, &borderSize)) {

+	case rgnIN:

+	    newVis = VisibilityUnobscured;

+	    break;

+	case rgnPART:

+	    newVis = VisibilityPartiallyObscured;

+	    {

+		RegionPtr   pBounding;

+

+		if ((pBounding = wBoundingShape (pParent))) {

+		    switch (miShapedWindowIn (pScreen, universe, pBounding,

+					      &borderSize,

+					      pParent->drawable.x,

+ 					      pParent->drawable.y))

+		    {

+		    case rgnIN:

+			newVis = VisibilityUnobscured;

+			break;

+		    case rgnOUT:

+			newVis = VisibilityFullyObscured;

+			break;

+		    }

+		}

+	    }

+	    break;

+	default:

+	    newVis = VisibilityFullyObscured;

+	    break;

+    }

+    tParent->visibility = newVis;

+

+    dx = pParent->drawable.x - tParent->valdata->oldAbsCorner.x;

+    dy = pParent->drawable.y - tParent->valdata->oldAbsCorner.y;

+

+    switch (kind) {

+    case VTMap:

+    case VTStack:

+    case VTUnmap:

+	break;

+    case VTMove:

+	if ((oldVis == newVis) &&

+	    ((oldVis == VisibilityFullyObscured) ||

+	     (oldVis == VisibilityUnobscured)))

+	{

+	    tChild = tParent;

+	    while (1) {

+		if (tChild->pWin->viewable) {

+		    if (tChild->visibility != VisibilityFullyObscured) {

+			REGION_TRANSLATE( pScreen, &tChild->borderClip, dx, dy);

+			REGION_TRANSLATE( pScreen, &tChild->clipList, dx, dy);

+		

+			tChild->pWin->drawable.serialNumber = 

+							 NEXT_SERIAL_NUMBER;

+                        if (pScreen->ClipNotify)

+                            (* pScreen->ClipNotify) (tChild->pWin, dx, dy);

+		    }

+		    if (tChild->valdata) {

+			REGION_NULL(pScreen, &tChild->valdata->borderExposed);

+			if (HasParentRelativeBorder(tChild->pWin)){

+			    REGION_SUBTRACT(pScreen,

+					 &tChild->valdata->borderExposed,

+					 &tChild->borderClip,

+					 &tChild->pWin->winSize);

+			}

+			REGION_NULL(pScreen, &tChild->valdata->exposed);

+		    }

+		    if (tChild->firstChild) {

+			tChild = tChild->firstChild;

+			continue;

+		    }

+		}

+		while (!tChild->nextSib && (tChild != tParent))

+		    tChild = tChild->parent;

+		if (tChild == tParent)

+		    break;

+		tChild = tChild->nextSib;

+	    }

+	    return;

+	}

+	/* fall through */

+    default:

+    	if (dx || dy)  {

+	    REGION_TRANSLATE( pScreen, &tParent->borderClip, dx, dy);

+	    REGION_TRANSLATE( pScreen, &tParent->clipList, dx, dy);

+    	} 

+	break;

+    case VTBroken:

+	REGION_EMPTY (pScreen, &tParent->borderClip);

+	REGION_EMPTY (pScreen, &tParent->clipList);

+	break;

+    }

+

+    borderVisible = tParent->valdata->borderVisible;

+    REGION_NULL(pScreen, &tParent->valdata->borderExposed);

+    REGION_NULL(pScreen, &tParent->valdata->exposed);

+

+    if (HasBorder (pParent)) {

+    	if (borderVisible) {

+	    REGION_SUBTRACT( pScreen, exposed, universe, borderVisible);

+	    REGION_DESTROY( pScreen, borderVisible);

+    	} else

+	    REGION_SUBTRACT( pScreen, exposed, universe, &tParent->borderClip);

+

+	if (HasParentRelativeBorder(pParent) && (dx || dy))

+	    REGION_SUBTRACT( pScreen, &tParent->valdata->borderExposed,

+				  universe, &pParent->winSize);

+	else

+	    REGION_SUBTRACT( pScreen, &tParent->valdata->borderExposed,

+			       exposed, &pParent->winSize);

+

+    	REGION_COPY( pScreen, &tParent->borderClip, universe);    

+    	REGION_INTERSECT( pScreen, universe, universe, &pParent->winSize);

+    }

+    else

+    	REGION_COPY( pScreen, &tParent->borderClip, universe);

+

+    if ((tChild = tParent->firstChild) && pParent->mapped) {

+	REGION_NULL(pScreen, &childUniverse);

+	REGION_NULL(pScreen, &childUnion);

+

+	for (; tChild; tChild = tChild->nextSib) {

+	    if (tChild->pWin->viewable)

+		REGION_APPEND( pScreen, &childUnion, &tChild->pWin->borderSize);

+	}

+

+	REGION_VALIDATE( pScreen, &childUnion, &overlap);

+

+	for (tChild = tParent->firstChild;

+	     tChild;

+	     tChild = tChild->nextSib)

+ 	{

+	    if (tChild->pWin->viewable) {

+		if (tChild->valdata) {

+		    REGION_INTERSECT( pScreen, &childUniverse, universe,

+					    &tChild->pWin->borderSize);

+		    miOverlayComputeClips (tChild->pWin, &childUniverse, 

+						kind, exposed);

+		}

+		if (overlap)

+		    REGION_SUBTRACT( pScreen, universe, universe,

+					  &tChild->pWin->borderSize);

+	    }

+	}

+	if (!overlap)

+	    REGION_SUBTRACT( pScreen, universe, universe, &childUnion);

+	REGION_UNINIT( pScreen, &childUnion);

+	REGION_UNINIT( pScreen, &childUniverse);

+    } 

+

+    if (oldVis == VisibilityFullyObscured ||

+	oldVis == VisibilityNotViewable)

+    {

+	REGION_COPY( pScreen, &tParent->valdata->exposed, universe);

+    }

+    else if (newVis != VisibilityFullyObscured &&

+	     newVis != VisibilityNotViewable)

+    {

+    	REGION_SUBTRACT( pScreen, &tParent->valdata->exposed,

+			       universe, &tParent->clipList);

+    }

+    

+    /* HACK ALERT - copying contents of regions, instead of regions */

+    {

+	RegionRec   tmp;

+

+	tmp = tParent->clipList;

+	tParent->clipList = *universe;

+	*universe = tmp;

+    }

+

+    pParent->drawable.serialNumber = NEXT_SERIAL_NUMBER;

+

+    if (pScreen->ClipNotify)

+        (* pScreen->ClipNotify) (pParent, dx, dy);

+}

+

+

+static void 

+miOverlayMarkWindow(WindowPtr pWin)

+{

+    miOverlayTreePtr pTree = NULL;

+    WindowPtr pChild, pGrandChild;

+   

+    miMarkWindow(pWin);

+

+    /* look for UnmapValdata among immediate children */

+

+    if(!(pChild = pWin->firstChild)) return;

+

+    for( ; pChild; pChild = pChild->nextSib) {

+	if(pChild->valdata == UnmapValData) {

+	    if(IN_UNDERLAY(pChild)) {

+		pTree = MIOVERLAY_GET_WINDOW_TREE(pChild);

+		pTree->valdata = (miOverlayValDataPtr)UnmapValData; 

+		continue;

+	    } else {	

+	        if(!(pGrandChild = pChild->firstChild))

+		   continue;

+

+		while(1) {

+		    if(IN_UNDERLAY(pGrandChild)) {

+			pTree = MIOVERLAY_GET_WINDOW_TREE(pGrandChild);

+			pTree->valdata = (miOverlayValDataPtr)UnmapValData; 

+		    } else if(pGrandChild->firstChild) {	

+			pGrandChild = pGrandChild->firstChild;

+			continue;

+		    }

+

+		    while(!pGrandChild->nextSib && (pGrandChild != pChild))

+			pGrandChild = pGrandChild->parent;

+

+		    if(pChild == pGrandChild) break;

+		

+		    pGrandChild = pGrandChild->nextSib;

+		}

+	    }

+        }

+    }

+

+    if(pTree) {

+	MARK_UNDERLAY(pTree->parent->pWin);

+	MIOVERLAY_GET_SCREEN_PRIVATE(

+		pWin->drawable.pScreen)->underlayMarked = TRUE;

+    }

+}

+

+static void

+miOverlayMarkUnrealizedWindow(

+    WindowPtr pChild,

+    WindowPtr pWin,

+    Bool fromConfigure

+){

+    if ((pChild != pWin) || fromConfigure) {

+	miOverlayTreePtr pTree;

+

+        REGION_EMPTY(pChild->drawable.pScreen, &pChild->clipList);

+        if (pChild->drawable.pScreen->ClipNotify)

+            (* pChild->drawable.pScreen->ClipNotify)(pChild, 0, 0);

+        REGION_EMPTY(pChild->drawable.pScreen, &pChild->borderClip);

+	if((pTree = MIOVERLAY_GET_WINDOW_TREE(pChild))) {

+	    if(pTree->valdata != (miOverlayValDataPtr)UnmapValData) {

+		REGION_EMPTY(pChild->drawable.pScreen, &pTree->clipList);

+		REGION_EMPTY(pChild->drawable.pScreen, &pTree->borderClip);

+	    }

+	}

+    }

+}

+

+

+static int 

+miOverlayValidateTree(

+    WindowPtr pParent,

+    WindowPtr pChild,   /* first child effected */

+    VTKind    kind

+){

+    ScreenPtr pScreen = pParent->drawable.pScreen;

+    miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);

+    RegionRec totalClip, childClip, exposed;

+    miOverlayTreePtr tParent, tChild, tWin;

+    Bool overlap;

+    WindowPtr newParent;

+

+    if(!pPriv->underlayMarked)

+	goto SKIP_UNDERLAY;

+

+    if (!pChild) pChild = pParent->firstChild;

+

+    REGION_NULL(pScreen, &totalClip);

+    REGION_NULL(pScreen, &childClip);

+    REGION_NULL(pScreen, &exposed);

+

+    newParent = pParent;

+

+    while(IN_OVERLAY(newParent))

+    	newParent = newParent->parent;

+

+    tParent = MIOVERLAY_GET_WINDOW_TREE(newParent);

+

+    if(IN_UNDERLAY(pChild))

+	tChild = MIOVERLAY_GET_WINDOW_TREE(pChild);

+    else

+	tChild = tParent->firstChild;

+

+    if (REGION_BROKEN (pScreen, &tParent->clipList) &&

+        !REGION_BROKEN (pScreen, &tParent->borderClip))

+    {

+	kind = VTBroken;

+	REGION_COPY (pScreen, &totalClip, &tParent->borderClip);

+	REGION_INTERSECT (pScreen, &totalClip, &totalClip,

+						 &tParent->pWin->winSize);

+        

+        for (tWin = tParent->firstChild; tWin != tChild; tWin = tWin->nextSib) {

+            if (tWin->pWin->viewable)

+                REGION_SUBTRACT (pScreen, &totalClip, &totalClip, 

+					&tWin->pWin->borderSize);

+        }        

+        REGION_EMPTY (pScreen, &tParent->clipList);

+    } else {

+	for(tWin = tChild; tWin; tWin = tWin->nextSib) {

+	    if(tWin->valdata)

+		REGION_APPEND(pScreen, &totalClip, &tWin->borderClip);

+	}

+	REGION_VALIDATE(pScreen, &totalClip, &overlap);

+    }

+

+    if(kind != VTStack)

+	REGION_UNION(pScreen, &totalClip, &totalClip, &tParent->clipList);

+	

+    for(tWin = tChild; tWin; tWin = tWin->nextSib) {

+	if(tWin->valdata) {

+	    if(tWin->pWin->viewable) {

+		REGION_INTERSECT(pScreen, &childClip, &totalClip,

+					&tWin->pWin->borderSize);

+		miOverlayComputeClips(tWin->pWin, &childClip, kind, &exposed);

+		REGION_SUBTRACT(pScreen, &totalClip, &totalClip,

+					&tWin->pWin->borderSize);

+	    } else {  /* Means we are unmapping */

+                REGION_EMPTY(pScreen, &tWin->clipList);

+                REGION_EMPTY( pScreen, &tWin->borderClip);

+		tWin->valdata = NULL;

+	    }

+	}

+    }

+

+    REGION_UNINIT(pScreen, &childClip);

+

+    if(!((*pPriv->InOverlay)(newParent))) {

+	REGION_NULL(pScreen, &tParent->valdata->exposed);

+	REGION_NULL(pScreen, &tParent->valdata->borderExposed);

+    }

+

+    switch (kind) {

+    case VTStack:

+	break;

+    default:

+    	if(!((*pPriv->InOverlay)(newParent))) 

+	    REGION_SUBTRACT(pScreen, &tParent->valdata->exposed, &totalClip, 

+						&tParent->clipList);

+	/* fall through */

+    case VTMap:

+	REGION_COPY( pScreen, &tParent->clipList, &totalClip);

+    	if(!((*pPriv->InOverlay)(newParent))) 

+	    newParent->drawable.serialNumber = NEXT_SERIAL_NUMBER;

+	break;

+    }

+

+    REGION_UNINIT( pScreen, &totalClip);

+    REGION_UNINIT( pScreen, &exposed);

+

+SKIP_UNDERLAY:

+

+    miValidateTree(pParent, pChild, kind);

+

+    return 1;

+}

+

+

+static void

+miOverlayHandleExposures(WindowPtr pWin)

+{

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+    miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);

+    WindowPtr pChild;

+    ValidatePtr val;

+    void (* WindowExposures)(WindowPtr, RegionPtr, RegionPtr);

+

+    WindowExposures = pWin->drawable.pScreen->WindowExposures;

+    if(pPriv->underlayMarked) {

+	miOverlayTreePtr pTree;

+	miOverlayValDataPtr mival;

+

+	pChild = pWin;

+	while(IN_OVERLAY(pChild))

+	    pChild = pChild->parent;

+

+	pTree = MIOVERLAY_GET_WINDOW_TREE(pChild);

+

+	while (1) {

+	    if((mival = pTree->valdata)) {

+		if(!((*pPriv->InOverlay)(pTree->pWin))) {

+		    if (REGION_NOTEMPTY(pScreen, &mival->borderExposed)) {

+			miPaintWindow(pTree->pWin, &mival->borderExposed,

+				      PW_BORDER);

+		    }

+		    REGION_UNINIT(pScreen, &mival->borderExposed);

+

+		    (*WindowExposures)(pTree->pWin,&mival->exposed,NullRegion);

+		    REGION_UNINIT(pScreen, &mival->exposed);

+		}

+		free(mival);

+		pTree->valdata = NULL;

+		if (pTree->firstChild) {

+		    pTree = pTree->firstChild;

+		    continue;

+		}

+	    }

+	    while (!pTree->nextSib && (pTree->pWin != pChild))

+	    	pTree = pTree->parent;

+	    if (pTree->pWin == pChild)

+		break;

+	    pTree = pTree->nextSib;

+        }

+	pPriv->underlayMarked = FALSE;

+    }

+

+    pChild = pWin;

+    while (1) {

+	if ( (val = pChild->valdata) ) {

+	    if(!((*pPriv->InOverlay)(pChild))) {

+		REGION_UNION(pScreen, &val->after.exposed, &val->after.exposed,

+			&val->after.borderExposed);

+

+		if (REGION_NOTEMPTY(pScreen, &val->after.exposed)) {

+		   (*(MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->MakeTransparent))(

+				pScreen, 

+				REGION_NUM_RECTS(&val->after.exposed),

+				REGION_RECTS(&val->after.exposed));

+		}

+	    } else {

+		if (REGION_NOTEMPTY(pScreen, &val->after.borderExposed)) {

+			miPaintWindow(pChild, &val->after.borderExposed,

+				      PW_BORDER);

+		}

+		(*WindowExposures)(pChild, &val->after.exposed, NullRegion);

+	    }

+	    REGION_UNINIT(pScreen, &val->after.borderExposed);

+	    REGION_UNINIT(pScreen, &val->after.exposed);

+	    free(val);

+	    pChild->valdata = NULL;

+	    if (pChild->firstChild)

+	    {

+		pChild = pChild->firstChild;

+		continue;

+	    }

+	}

+	while (!pChild->nextSib && (pChild != pWin))

+	    pChild = pChild->parent;

+	if (pChild == pWin)

+	    break;

+	pChild = pChild->nextSib;

+    }

+}

+

+

+static void

+miOverlayMoveWindow(

+    WindowPtr pWin,

+    int x,

+    int y,

+    WindowPtr pNextSib,

+    VTKind kind

+){

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);

+    WindowPtr pParent, windowToValidate;

+    Bool WasViewable = (Bool)(pWin->viewable);

+    short bw;

+    RegionRec overReg, underReg;

+    DDXPointRec oldpt;

+

+    if (!(pParent = pWin->parent))

+       return ;

+    bw = wBorderWidth (pWin);

+

+    oldpt.x = pWin->drawable.x;

+    oldpt.y = pWin->drawable.y;

+    if (WasViewable) {

+	REGION_NULL(pScreen, &overReg);

+	REGION_NULL(pScreen, &underReg);

+	if(pTree) {

+	    REGION_COPY(pScreen, &overReg, &pWin->borderClip);

+	    REGION_COPY(pScreen, &underReg, &pTree->borderClip);

+        } else {

+	    REGION_COPY(pScreen, &overReg, &pWin->borderClip);

+	    CollectUnderlayChildrenRegions(pWin, &underReg);

+	}

+	(*pScreen->MarkOverlappedWindows)(pWin, pWin, NULL);

+    }

+    pWin->origin.x = x + (int)bw;

+    pWin->origin.y = y + (int)bw;

+    x = pWin->drawable.x = pParent->drawable.x + x + (int)bw;

+    y = pWin->drawable.y = pParent->drawable.y + y + (int)bw;

+

+    SetWinSize (pWin);

+    SetBorderSize (pWin);

+

+    (*pScreen->PositionWindow)(pWin, x, y);

+

+    windowToValidate = MoveWindowInStack(pWin, pNextSib);

+

+    ResizeChildrenWinSize(pWin, x - oldpt.x, y - oldpt.y, 0, 0);

+

+    if (WasViewable) {

+	miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);

+	(*pScreen->MarkOverlappedWindows) (pWin, windowToValidate, NULL);

+

+

+	(*pScreen->ValidateTree)(pWin->parent, NullWindow, kind);

+	if(REGION_NOTEMPTY(pScreen, &underReg)) {

+	    pPriv->copyUnderlay = TRUE;

+	    (* pWin->drawable.pScreen->CopyWindow)(pWin, oldpt, &underReg);

+	}

+	REGION_UNINIT(pScreen, &underReg);

+	if(REGION_NOTEMPTY(pScreen, &overReg)) {

+	    pPriv->copyUnderlay = FALSE;

+	    (* pWin->drawable.pScreen->CopyWindow)(pWin, oldpt, &overReg);

+	}

+	REGION_UNINIT(pScreen, &overReg);

+	(*pScreen->HandleExposures)(pWin->parent);

+

+	if (pScreen->PostValidateTree)

+	    (*pScreen->PostValidateTree)(pWin->parent, NullWindow, kind);

+    }

+    if (pWin->realized)

+	WindowsRestructured ();

+}

+

+#ifndef RECTLIMIT

+#define RECTLIMIT 25

+#endif

+

+static void 

+miOverlayWindowExposures(

+    WindowPtr pWin,

+    RegionPtr prgn,

+    RegionPtr other_exposed

+){

+    RegionPtr   exposures = prgn;

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+

+    if ((prgn && !REGION_NIL(prgn)) || 

+	(exposures && !REGION_NIL(exposures)) || other_exposed)

+    {

+	RegionRec   expRec;

+	int	    clientInterested;

+

+	clientInterested = (pWin->eventMask|wOtherEventMasks(pWin)) &

+		 	    ExposureMask;

+	if (other_exposed) {

+	    if (exposures) {

+		REGION_UNION(pScreen, other_exposed, exposures, other_exposed);

+		if (exposures != prgn)

+		    REGION_DESTROY(pScreen, exposures);

+	    }

+	    exposures = other_exposed;

+	}

+	if (clientInterested && exposures && 

+	   (REGION_NUM_RECTS(exposures) > RECTLIMIT))

+	{

+            miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);

+	    BoxRec box;

+

+	    box = *REGION_EXTENTS(pScreen, exposures);

+	    if (exposures == prgn) {

+		exposures = &expRec;

+		REGION_INIT(pScreen, exposures, &box, 1);

+		REGION_RESET(pScreen, prgn, &box);

+	    } else {

+		REGION_RESET(pScreen, exposures, &box);

+		REGION_UNION(pScreen, prgn, prgn, exposures);

+	    }

+	    /* This is the only reason why we are replacing mi's version

+               of this file */

+	    

+	    if(!((*pPriv->InOverlay)(pWin))) {

+		miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);

+		REGION_INTERSECT(pScreen, prgn, prgn, &pTree->clipList);

+	    } else

+		REGION_INTERSECT(pScreen, prgn, prgn, &pWin->clipList);

+	}

+	if (prgn && !REGION_NIL(prgn))

+	    miPaintWindow(pWin, prgn, PW_BACKGROUND);

+	if (clientInterested && exposures && !REGION_NIL(exposures))

+	    miSendExposures(pWin, exposures,

+			    pWin->drawable.x, pWin->drawable.y);

+	if (exposures == &expRec) {

+	    REGION_UNINIT(pScreen, exposures);

+	} 

+	else if (exposures && exposures != prgn && exposures != other_exposed)

+	    REGION_DESTROY(pScreen, exposures);

+	if (prgn)

+	    REGION_EMPTY(pScreen, prgn);

+    }

+    else if (exposures && exposures != prgn)

+	REGION_DESTROY(pScreen, exposures);

+}

+

+

+typedef struct {

+   RegionPtr over;

+   RegionPtr under;

+} miOverlayTwoRegions; 

+

+static int

+miOverlayRecomputeExposures (

+    WindowPtr	pWin,

+    pointer	value 

+){

+    ScreenPtr pScreen;

+    miOverlayTwoRegions	*pValid = (miOverlayTwoRegions*)value;

+    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);

+

+    /* This prevents warning about pScreen not being used. */

+    pWin->drawable.pScreen = pScreen = pWin->drawable.pScreen;

+

+    if (pWin->valdata) {

+	/*

+	 * compute exposed regions of this window

+	 */

+	REGION_SUBTRACT(pScreen, &pWin->valdata->after.exposed,

+			&pWin->clipList, pValid->over);

+	/*

+	 * compute exposed regions of the border

+	 */

+	REGION_SUBTRACT(pScreen, &pWin->valdata->after.borderExposed,

+			     &pWin->borderClip, &pWin->winSize);

+	REGION_SUBTRACT(pScreen, &pWin->valdata->after.borderExposed,

+			     &pWin->valdata->after.borderExposed, pValid->over);

+    } 

+

+    if(pTree && pTree->valdata) {

+	REGION_SUBTRACT(pScreen, &pTree->valdata->exposed,

+			&pTree->clipList, pValid->under);

+	REGION_SUBTRACT(pScreen, &pTree->valdata->borderExposed,

+			     &pTree->borderClip, &pWin->winSize);

+	REGION_SUBTRACT(pScreen, &pTree->valdata->borderExposed,

+			     &pTree->valdata->borderExposed, pValid->under);    

+    } else if (!pWin->valdata)

+	return WT_NOMATCH;

+

+    return WT_WALKCHILDREN;

+}

+

+static void

+miOverlayResizeWindow(

+    WindowPtr pWin,

+    int x, int y,

+    unsigned int w, unsigned int h,

+    WindowPtr pSib

+){

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+    WindowPtr pParent;

+    miOverlayTreePtr tChild, pTree;

+    Bool WasViewable = (Bool)(pWin->viewable);

+    unsigned short width = pWin->drawable.width;

+    unsigned short height = pWin->drawable.height;

+    short oldx = pWin->drawable.x;

+    short oldy = pWin->drawable.y;

+    int bw = wBorderWidth (pWin);

+    short dw, dh;

+    DDXPointRec oldpt;

+    RegionPtr oldRegion = NULL, oldRegion2 = NULL;

+    WindowPtr pFirstChange;

+    WindowPtr pChild;

+    RegionPtr	gravitate[StaticGravity + 1];

+    RegionPtr	gravitate2[StaticGravity + 1];

+    unsigned 	g;

+    int		nx, ny;		/* destination x,y */

+    int		newx, newy;	/* new inner window position */

+    RegionPtr	pRegion = NULL;

+    RegionPtr	destClip, destClip2;

+    RegionPtr	oldWinClip = NULL, oldWinClip2 = NULL;	

+    RegionPtr	borderVisible = NullRegion; 

+    RegionPtr	borderVisible2 = NullRegion; 

+    Bool	shrunk = FALSE; /* shrunk in an inner dimension */

+    Bool	moved = FALSE;	/* window position changed */

+    Bool	doUnderlay;

+

+    /* if this is a root window, can't be resized */

+    if (!(pParent = pWin->parent))

+	return ;

+

+    pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);

+    doUnderlay = ((pTree) || HasUnderlayChildren(pWin));

+    newx = pParent->drawable.x + x + bw;

+    newy = pParent->drawable.y + y + bw;

+    if (WasViewable)

+    {

+	/*

+	 * save the visible region of the window

+	 */

+	oldRegion = REGION_CREATE(pScreen, NullBox, 1);

+	REGION_COPY(pScreen, oldRegion, &pWin->winSize);

+	if(doUnderlay) {

+	    oldRegion2 = REGION_CREATE(pScreen, NullBox, 1);

+	    REGION_COPY(pScreen, oldRegion2, &pWin->winSize);

+	}

+

+	/*

+	 * categorize child windows into regions to be moved

+	 */

+	for (g = 0; g <= StaticGravity; g++)

+	    gravitate[g] = gravitate2[g] = NULL;

+	for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) {

+	    g = pChild->winGravity;

+	    if (g != UnmapGravity) {

+		if (!gravitate[g])

+		    gravitate[g] = REGION_CREATE(pScreen, NullBox, 1);

+		REGION_UNION(pScreen, gravitate[g],

+				   gravitate[g], &pChild->borderClip);

+		

+		if(doUnderlay) {

+		    if (!gravitate2[g])

+			gravitate2[g] = REGION_CREATE(pScreen, NullBox, 0);

+		

+		    if((tChild = MIOVERLAY_GET_WINDOW_TREE(pChild))) {

+		        REGION_UNION(pScreen, gravitate2[g],

+				   gravitate2[g], &tChild->borderClip);

+		    } else 

+			CollectUnderlayChildrenRegions(pChild, gravitate2[g]);

+		}

+	    } else {

+		UnmapWindow(pChild, TRUE);

+	    }

+	}

+	(*pScreen->MarkOverlappedWindows)(pWin, pWin, NULL);

+

+

+	oldWinClip = oldWinClip2 = NULL;

+	if (pWin->bitGravity != ForgetGravity) {

+	    oldWinClip = REGION_CREATE(pScreen, NullBox, 1);

+	    REGION_COPY(pScreen, oldWinClip, &pWin->clipList);

+	    if(pTree) {

+		oldWinClip2 = REGION_CREATE(pScreen, NullBox, 1);

+		REGION_COPY(pScreen, oldWinClip2, &pTree->clipList);

+	    }

+	}

+	/*

+	 * if the window is changing size, borderExposed

+	 * can't be computed correctly without some help.

+	 */

+	if (pWin->drawable.height > h || pWin->drawable.width > w)

+	    shrunk = TRUE;

+

+	if (newx != oldx || newy != oldy)

+	    moved = TRUE;

+

+	if ((pWin->drawable.height != h || pWin->drawable.width != w) &&

+	    HasBorder (pWin))

+	{

+	    borderVisible = REGION_CREATE(pScreen, NullBox, 1);

+	    if(pTree)

+		borderVisible2 = REGION_CREATE(pScreen, NullBox, 1);

+	    /* for tiled borders, we punt and draw the whole thing */

+	    if (pWin->borderIsPixel || !moved)

+	    {

+		if (shrunk || moved)

+		    REGION_SUBTRACT(pScreen, borderVisible,

+					  &pWin->borderClip,

+					  &pWin->winSize);

+		else

+		    REGION_COPY(pScreen, borderVisible,

+					    &pWin->borderClip);

+		if(pTree) {

+		    if (shrunk || moved)

+			REGION_SUBTRACT(pScreen, borderVisible,

+					  &pTree->borderClip,

+					  &pWin->winSize);

+		    else

+			REGION_COPY(pScreen, borderVisible,

+					    &pTree->borderClip);

+		}

+	    }

+	}

+    }

+    pWin->origin.x = x + bw;

+    pWin->origin.y = y + bw;

+    pWin->drawable.height = h;

+    pWin->drawable.width = w;

+

+    x = pWin->drawable.x = newx;

+    y = pWin->drawable.y = newy;

+

+    SetWinSize (pWin);

+    SetBorderSize (pWin);

+

+    dw = (int)w - (int)width;

+    dh = (int)h - (int)height;

+    ResizeChildrenWinSize(pWin, x - oldx, y - oldy, dw, dh);

+

+    /* let the hardware adjust background and border pixmaps, if any */

+    (*pScreen->PositionWindow)(pWin, x, y);

+

+    pFirstChange = MoveWindowInStack(pWin, pSib);

+

+    if (WasViewable) {

+	pRegion = REGION_CREATE(pScreen, NullBox, 1);

+

+	(*pScreen->MarkOverlappedWindows)(pWin, pFirstChange, NULL);

+

+	pWin->valdata->before.resized = TRUE;

+	pWin->valdata->before.borderVisible = borderVisible;

+	if(pTree)

+	    pTree->valdata->borderVisible = borderVisible2;

+

+

+	(*pScreen->ValidateTree)(pWin->parent, pFirstChange, VTOther);

+	/*

+	 * the entire window is trashed unless bitGravity

+	 * recovers portions of it

+	 */

+	REGION_COPY(pScreen, &pWin->valdata->after.exposed, &pWin->clipList);

+	if(pTree)

+	    REGION_COPY(pScreen, &pTree->valdata->exposed, &pTree->clipList);

+    }

+

+    GravityTranslate (x, y, oldx, oldy, dw, dh, pWin->bitGravity, &nx, &ny);

+

+    if (WasViewable) {

+	miOverlayScreenPtr pPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);

+	miOverlayTwoRegions TwoRegions;

+

+	/* avoid the border */

+	if (HasBorder (pWin)) {

+	    int	offx, offy, dx, dy;

+

+	    /* kruft to avoid double translates for each gravity */

+	    offx = 0;

+	    offy = 0;

+	    for (g = 0; g <= StaticGravity; g++) {

+		if (!gravitate[g] && !gravitate2[g])

+		    continue;

+

+		/* align winSize to gravitate[g].

+		 * winSize is in new coordinates,

+		 * gravitate[g] is still in old coordinates */

+		GravityTranslate (x, y, oldx, oldy, dw, dh, g, &nx, &ny);

+		

+		dx = (oldx - nx) - offx;

+		dy = (oldy - ny) - offy;

+		if (dx || dy) {

+		    REGION_TRANSLATE(pScreen, &pWin->winSize, dx, dy);

+		    offx += dx;

+		    offy += dy;

+		}

+		if(gravitate[g])

+		    REGION_INTERSECT(pScreen, gravitate[g], gravitate[g],

+				 &pWin->winSize);

+		if(gravitate2[g])

+		    REGION_INTERSECT(pScreen, gravitate2[g], gravitate2[g],

+				 &pWin->winSize);

+	    }

+	    /* get winSize back where it belongs */

+	    if (offx || offy)

+		REGION_TRANSLATE(pScreen, &pWin->winSize, -offx, -offy);

+	}

+	/*

+	 * add screen bits to the appropriate bucket

+	 */

+

+	if (oldWinClip2)

+	{

+	    REGION_COPY(pScreen, pRegion, oldWinClip2);

+	    REGION_TRANSLATE(pScreen, pRegion, nx - oldx, ny - oldy);

+	    REGION_INTERSECT(pScreen, oldWinClip2, pRegion, &pTree->clipList);

+

+	    for (g = pWin->bitGravity + 1; g <= StaticGravity; g++) {

+		if (gravitate2[g])

+		    REGION_SUBTRACT(pScreen, oldWinClip2, oldWinClip2,

+					gravitate2[g]);

+	    }

+	    REGION_TRANSLATE(pScreen, oldWinClip2, oldx - nx, oldy - ny);

+	    g = pWin->bitGravity;

+	    if (!gravitate2[g])

+		gravitate2[g] = oldWinClip2;

+	    else {

+		REGION_UNION(pScreen,gravitate2[g],gravitate2[g],oldWinClip2);

+		REGION_DESTROY(pScreen, oldWinClip2);

+	    }

+	}

+

+	if (oldWinClip)

+	{

+	    /*

+	     * clip to new clipList

+	     */

+	    REGION_COPY(pScreen, pRegion, oldWinClip);

+	    REGION_TRANSLATE(pScreen, pRegion, nx - oldx, ny - oldy);

+	    REGION_INTERSECT(pScreen, oldWinClip, pRegion, &pWin->clipList);

+	    /*

+	     * don't step on any gravity bits which will be copied after this

+	     * region.	Note -- this assumes that the regions will be copied

+	     * in gravity order.

+	     */

+	    for (g = pWin->bitGravity + 1; g <= StaticGravity; g++) {

+		if (gravitate[g])

+		    REGION_SUBTRACT(pScreen, oldWinClip, oldWinClip,

+					gravitate[g]);

+	    }

+	    REGION_TRANSLATE(pScreen, oldWinClip, oldx - nx, oldy - ny);

+	    g = pWin->bitGravity;

+	    if (!gravitate[g])

+		gravitate[g] = oldWinClip;

+	    else {

+		REGION_UNION(pScreen, gravitate[g], gravitate[g], oldWinClip);

+		REGION_DESTROY(pScreen, oldWinClip);

+	    }

+	}

+

+	/*

+	 * move the bits on the screen

+	 */

+

+	destClip = destClip2 = NULL;

+

+	for (g = 0; g <= StaticGravity; g++) {

+	    if (!gravitate[g] && !gravitate2[g])

+		continue;

+

+	    GravityTranslate (x, y, oldx, oldy, dw, dh, g, &nx, &ny);

+

+	    oldpt.x = oldx + (x - nx);

+	    oldpt.y = oldy + (y - ny);

+

+	    /* Note that gravitate[g] is *translated* by CopyWindow */

+

+	    /* only copy the remaining useful bits */

+

+	    if(gravitate[g])

+		REGION_INTERSECT(pScreen, gravitate[g], 

+				 gravitate[g], oldRegion);

+	    if(gravitate2[g])

+		REGION_INTERSECT(pScreen, gravitate2[g], 

+				 gravitate2[g], oldRegion2);

+

+	    /* clip to not overwrite already copied areas */

+

+	    if (destClip && gravitate[g]) {

+		REGION_TRANSLATE(pScreen, destClip, oldpt.x - x, oldpt.y - y);

+		REGION_SUBTRACT(pScreen, gravitate[g], gravitate[g], destClip);

+		REGION_TRANSLATE(pScreen, destClip, x - oldpt.x, y - oldpt.y);

+	    }

+	    if (destClip2 && gravitate2[g]) {

+		REGION_TRANSLATE(pScreen, destClip2, oldpt.x - x, oldpt.y - y);

+		REGION_SUBTRACT(pScreen,gravitate2[g],gravitate2[g],destClip2);

+		REGION_TRANSLATE(pScreen, destClip2, x - oldpt.x, y - oldpt.y);

+	    }

+

+	    /* and move those bits */

+

+	    if (oldpt.x != x || oldpt.y != y) {

+		if(gravitate2[g]) {

+		    pPriv->copyUnderlay = TRUE;

+		    (*pWin->drawable.pScreen->CopyWindow)(

+						pWin, oldpt, gravitate2[g]);

+		}

+		if(gravitate[g]) {

+		    pPriv->copyUnderlay = FALSE;

+		    (*pWin->drawable.pScreen->CopyWindow)(

+						pWin, oldpt, gravitate[g]);

+		}

+	    }

+

+	    /* remove any overwritten bits from the remaining useful bits */

+

+	    if(gravitate[g])

+		REGION_SUBTRACT(pScreen, oldRegion, oldRegion, gravitate[g]);

+	    if(gravitate2[g])

+		REGION_SUBTRACT(pScreen, oldRegion2, oldRegion2, gravitate2[g]);

+

+	    /*

+	     * recompute exposed regions of child windows

+	     */

+	

+

+	    for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) {

+		if (pChild->winGravity != g)

+		    continue;

+

+		TwoRegions.over = gravitate[g];

+		TwoRegions.under = gravitate2[g];

+

+		TraverseTree (pChild, miOverlayRecomputeExposures, 

+					(pointer)(&TwoRegions));

+	    }

+

+	    /*

+	     * remove the successfully copied regions of the

+	     * window from its exposed region

+	     */

+

+	    if (g == pWin->bitGravity) {

+		if(gravitate[g])

+		    REGION_SUBTRACT(pScreen, &pWin->valdata->after.exposed,

+				&pWin->valdata->after.exposed, gravitate[g]);

+		if(gravitate2[g] && pTree) 

+		    REGION_SUBTRACT(pScreen, &pTree->valdata->exposed,

+				&pTree->valdata->exposed, gravitate2[g]);

+	    }

+	    if(gravitate[g]) {

+		if (!destClip)

+		    destClip = gravitate[g];

+		else {

+		    REGION_UNION(pScreen, destClip, destClip, gravitate[g]);

+		    REGION_DESTROY(pScreen, gravitate[g]);

+		}

+	    }

+	    if(gravitate2[g]) {

+		if (!destClip2)

+		    destClip2 = gravitate2[g];

+		else {

+		    REGION_UNION(pScreen, destClip2, destClip2, gravitate2[g]);

+		    REGION_DESTROY(pScreen, gravitate2[g]);

+		}

+	    }

+	}

+

+	REGION_DESTROY(pScreen, pRegion);

+	REGION_DESTROY(pScreen, oldRegion);

+	if(doUnderlay)

+	    REGION_DESTROY(pScreen, oldRegion2);

+	if (destClip)

+	    REGION_DESTROY(pScreen, destClip);

+	if (destClip2)

+	    REGION_DESTROY(pScreen, destClip2);

+	(*pScreen->HandleExposures)(pWin->parent);

+	if (pScreen->PostValidateTree)

+	    (*pScreen->PostValidateTree)(pWin->parent, pFirstChange, VTOther);

+    }

+    if (pWin->realized)

+	WindowsRestructured ();

+}

+

+

+static void

+miOverlaySetShape(WindowPtr pWin)

+{

+    Bool	WasViewable = (Bool)(pWin->viewable);

+    ScreenPtr 	pScreen = pWin->drawable.pScreen;

+

+    if (WasViewable) {

+	(*pScreen->MarkOverlappedWindows)(pWin, pWin, NULL);

+

+	if (HasBorder (pWin)) {

+	    RegionPtr borderVisible;

+

+	    borderVisible = REGION_CREATE(pScreen, NullBox, 1);

+	    REGION_SUBTRACT(pScreen, borderVisible,

+				      &pWin->borderClip, &pWin->winSize);

+	    pWin->valdata->before.borderVisible = borderVisible;

+	    pWin->valdata->before.resized = TRUE;

+	    if(IN_UNDERLAY(pWin)) {

+		miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);

+		RegionPtr borderVisible2;

+

+		borderVisible2 = REGION_CREATE(pScreen, NULL, 1);

+		REGION_SUBTRACT(pScreen, borderVisible2,

+				      &pTree->borderClip, &pWin->winSize);

+		pTree->valdata->borderVisible = borderVisible2;

+	    }

+	}

+    }

+

+    SetWinSize (pWin);

+    SetBorderSize (pWin);

+

+    ResizeChildrenWinSize(pWin, 0, 0, 0, 0);

+

+    if (WasViewable) {

+	(*pScreen->MarkOverlappedWindows)(pWin, pWin, NULL);

+

+

+	(*pScreen->ValidateTree)(pWin->parent, NullWindow, VTOther);

+    }

+

+    if (WasViewable) {

+	(*pScreen->HandleExposures)(pWin->parent);

+	if (pScreen->PostValidateTree)

+	    (*pScreen->PostValidateTree)(pWin->parent, NullWindow, VTOther);

+    }

+    if (pWin->realized)

+	WindowsRestructured ();

+    CheckCursorConfinement(pWin);

+}

+

+

+

+static void

+miOverlayChangeBorderWidth(

+    WindowPtr pWin,

+    unsigned int width

+){

+    int oldwidth;

+    ScreenPtr pScreen;

+    Bool WasViewable = (Bool)(pWin->viewable);

+    Bool HadBorder;

+

+    oldwidth = wBorderWidth (pWin);

+    if (oldwidth == width)

+	return;

+    HadBorder = HasBorder(pWin);

+    pScreen = pWin->drawable.pScreen;

+    if (WasViewable && (width < oldwidth))

+	(*pScreen->MarkOverlappedWindows)(pWin, pWin, NULL);

+

+    pWin->borderWidth = width;

+    SetBorderSize (pWin);

+

+    if (WasViewable) {

+	if (width > oldwidth) {

+	    (*pScreen->MarkOverlappedWindows)(pWin, pWin, NULL);

+

+	    if (HadBorder) {

+		RegionPtr   borderVisible;

+		borderVisible = REGION_CREATE(pScreen, NULL, 1);

+		REGION_SUBTRACT(pScreen, borderVisible,

+				      &pWin->borderClip, &pWin->winSize);

+		pWin->valdata->before.borderVisible = borderVisible;

+		if(IN_UNDERLAY(pWin)) {

+		    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);

+		    RegionPtr borderVisible2;

+

+		    borderVisible2 = REGION_CREATE(pScreen, NULL, 1);

+		    REGION_SUBTRACT(pScreen, borderVisible2,

+				      &pTree->borderClip, &pWin->winSize);

+		    pTree->valdata->borderVisible = borderVisible2;

+		}

+	    }

+	}

+	(*pScreen->ValidateTree)(pWin->parent, pWin, VTOther);

+	(*pScreen->HandleExposures)(pWin->parent);

+

+	if (pScreen->PostValidateTree)

+	    (*pScreen->PostValidateTree)(pWin->parent, pWin, VTOther);

+    }

+    if (pWin->realized)

+	WindowsRestructured ();

+}

+

+/*  We need this as an addition since the xf86 common code doesn't

+    know about the second tree which is static to this file.  */

+

+void

+miOverlaySetRootClip(ScreenPtr pScreen, Bool enable)

+{

+    WindowPtr pRoot = WindowTable[pScreen->myNum];

+    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pRoot);

+

+    MARK_UNDERLAY(pRoot);

+

+    if(enable) {

+	BoxRec box;

+	

+	box.x1 = 0;

+	box.y1 = 0;

+	box.x2 = pScreen->width;

+	box.y2 = pScreen->height;

+

+	REGION_RESET(pScreen, &pTree->borderClip, &box);

+    } else 

+	REGION_EMPTY(pScreen, &pTree->borderClip);

+

+    REGION_BREAK(pScreen, &pTree->clipList);

+}

+

+static void 

+miOverlayClearToBackground(

+    WindowPtr pWin,

+    int x, int y,

+    int w, int h,

+    Bool generateExposures

+)

+{

+    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);

+    BoxRec box;

+    RegionRec reg;

+    RegionPtr pBSReg = NullRegion;

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+    miOverlayScreenPtr pScreenPriv = MIOVERLAY_GET_SCREEN_PRIVATE(pScreen);

+    RegionPtr clipList;

+    BoxPtr  extents;

+    int     x1, y1, x2, y2;

+

+    x1 = pWin->drawable.x + x;

+    y1 = pWin->drawable.y + y;

+    if (w)

+        x2 = x1 + (int) w;

+    else

+        x2 = x1 + (int) pWin->drawable.width - (int) x;

+    if (h)

+        y2 = y1 + h;    

+    else

+        y2 = y1 + (int) pWin->drawable.height - (int) y;

+

+    clipList = ((*pScreenPriv->InOverlay)(pWin)) ? &pWin->clipList :

+                                                 &pTree->clipList;

+

+    extents = REGION_EXTENTS(pScreen, clipList);

+    

+    if (x1 < extents->x1) x1 = extents->x1;

+    if (x2 > extents->x2) x2 = extents->x2;

+    if (y1 < extents->y1) y1 = extents->y1;

+    if (y2 > extents->y2) y2 = extents->y2;

+

+    if (x2 <= x1 || y2 <= y1) 

+        x2 = x1 = y2 = y1 = 0;

+

+    box.x1 = x1; box.x2 = x2;

+    box.y1 = y1; box.y2 = y2;

+

+    REGION_INIT(pScreen, &reg, &box, 1);

+

+    REGION_INTERSECT(pScreen, &reg, &reg, clipList);

+    if (generateExposures)

+        (*pScreen->WindowExposures)(pWin, &reg, pBSReg);

+    else if (pWin->backgroundState != None)

+	miPaintWindow(pWin, &reg, PW_BACKGROUND);

+    REGION_UNINIT(pScreen, &reg);

+    if (pBSReg)

+        REGION_DESTROY(pScreen, pBSReg);

+}

+

+

+/****************************************************************/

+

+/* not used */

+Bool

+miOverlayGetPrivateClips(

+    WindowPtr pWin,

+    RegionPtr *borderClip,

+    RegionPtr *clipList

+){

+    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);

+	

+    if(pTree) {

+ 	*borderClip = &(pTree->borderClip);

+	*clipList = &(pTree->clipList);

+	return TRUE;

+    }

+

+    *borderClip = *clipList = NULL;

+

+    return FALSE;

+}

+

+void

+miOverlaySetTransFunction (

+   ScreenPtr pScreen, 

+   miOverlayTransFunc transFunc

+){

+    MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->MakeTransparent = transFunc;

+}

+

+Bool

+miOverlayCopyUnderlay(ScreenPtr pScreen)

+{

+    return MIOVERLAY_GET_SCREEN_PRIVATE(pScreen)->copyUnderlay;

+}

+

+void

+miOverlayComputeCompositeClip(GCPtr pGC, WindowPtr pWin)

+{

+    ScreenPtr       pScreen = pGC->pScreen;

+    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);

+    RegionPtr       pregWin;

+    Bool            freeTmpClip, freeCompClip;

+

+    if(!pTree) {

+	miComputeCompositeClip(pGC, &pWin->drawable);

+	return;

+    }

+

+    if (pGC->subWindowMode == IncludeInferiors) {

+	pregWin = REGION_CREATE(pScreen, NullBox, 1);

+	freeTmpClip = TRUE;

+	if (pWin->parent || (screenIsSaved != SCREEN_SAVER_ON) ||

+		!HasSaverWindow (pScreen->myNum))

+	{

+            REGION_INTERSECT(pScreen,pregWin,&pTree->borderClip,&pWin->winSize);

+	}

+    } else {

+	pregWin = &pTree->clipList;

+	freeTmpClip = FALSE;

+    }

+    freeCompClip = pGC->freeCompClip;

+    if (pGC->clientClipType == CT_NONE) {

+	if (freeCompClip) 

+	    REGION_DESTROY(pScreen, pGC->pCompositeClip);

+	pGC->pCompositeClip = pregWin;

+	pGC->freeCompClip = freeTmpClip;

+    } else {

+	REGION_TRANSLATE(pScreen, pGC->clientClip,

+				pWin->drawable.x + pGC->clipOrg.x,

+				pWin->drawable.y + pGC->clipOrg.y);

+

+	if (freeCompClip) {

+	    REGION_INTERSECT(pGC->pScreen, pGC->pCompositeClip,

+					    pregWin, pGC->clientClip);

+	    if (freeTmpClip)

+		REGION_DESTROY(pScreen, pregWin);

+	} else if (freeTmpClip) {

+	    REGION_INTERSECT(pScreen, pregWin, pregWin, pGC->clientClip);

+	    pGC->pCompositeClip = pregWin;

+	} else {

+	    pGC->pCompositeClip = REGION_CREATE(pScreen, NullBox, 0);

+	    REGION_INTERSECT(pScreen, pGC->pCompositeClip,

+				       pregWin, pGC->clientClip);

+	}

+	pGC->freeCompClip = TRUE;

+	REGION_TRANSLATE(pScreen, pGC->clientClip,

+				-(pWin->drawable.x + pGC->clipOrg.x),

+				-(pWin->drawable.y + pGC->clipOrg.y));

+    }

+}

+

+Bool

+miOverlayCollectUnderlayRegions(

+    WindowPtr pWin,

+    RegionPtr *region

+){

+    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);

+

+    if(pTree) {

+	*region = &pTree->borderClip;

+	return FALSE;

+    }

+

+    *region = REGION_CREATE(pWin->drawable.pScreen, NullBox, 0);

+    

+    CollectUnderlayChildrenRegions(pWin, *region);

+

+    return TRUE;

+}

+

+

+static miOverlayTreePtr

+DoLeaf(

+    WindowPtr pWin, 

+    miOverlayTreePtr parent, 

+    miOverlayTreePtr prevSib

+){

+    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);

+    

+    pTree->parent = parent;

+    pTree->firstChild = NULL;

+    pTree->lastChild = NULL;

+    pTree->prevSib = prevSib;

+    pTree->nextSib = NULL;

+

+    if(prevSib)

+	prevSib->nextSib = pTree;

+

+    if(!parent->firstChild)

+	parent->firstChild = parent->lastChild = pTree;

+    else if(parent->lastChild == prevSib)

+	parent->lastChild = pTree;

+   

+    return pTree;

+}

+

+static void 

+RebuildTree(WindowPtr pWin)

+{

+    miOverlayTreePtr parent, prevSib, tChild;

+    WindowPtr pChild;

+

+    prevSib = tChild = NULL;

+

+    pWin = pWin->parent;

+

+    while(IN_OVERLAY(pWin))

+	pWin = pWin->parent;

+

+    parent = MIOVERLAY_GET_WINDOW_TREE(pWin);

+

+    pChild = pWin->firstChild;

+    parent->firstChild = parent->lastChild = NULL;

+

+    while(1) {

+	if(IN_UNDERLAY(pChild))

+	   prevSib = tChild = DoLeaf(pChild, parent, prevSib);

+

+	if(pChild->firstChild) {

+	    if(IN_UNDERLAY(pChild)) {

+		parent = tChild;

+		prevSib = NULL;

+	    }

+	    pChild = pChild->firstChild;

+	    continue;

+	}

+

+	while(!pChild->nextSib) {

+	    pChild = pChild->parent;

+	    if(pChild == pWin) return;

+	    if(IN_UNDERLAY(pChild)) {

+		prevSib = tChild = MIOVERLAY_GET_WINDOW_TREE(pChild);

+		parent = tChild->parent;

+	    }

+	}

+

+	pChild = pChild->nextSib;

+    }

+}

+

+

+static Bool

+HasUnderlayChildren(WindowPtr pWin)

+{

+    WindowPtr pChild;

+

+    if(!(pChild = pWin->firstChild)) 

+	return FALSE;

+

+    while(1) {

+	if(IN_UNDERLAY(pChild))

+	   return TRUE;

+

+	if(pChild->firstChild) {

+	    pChild = pChild->firstChild;

+	    continue;

+	}

+

+	while(!pChild->nextSib && (pWin != pChild))

+	    pChild = pChild->parent;

+

+	if(pChild == pWin) break;

+

+	pChild = pChild->nextSib;

+    }

+

+    return FALSE;

+}

+

+

+static Bool

+CollectUnderlayChildrenRegions(WindowPtr pWin, RegionPtr pReg)

+{

+    WindowPtr pChild;

+    miOverlayTreePtr pTree;

+    Bool hasUnderlay;

+

+    if(!(pChild = pWin->firstChild)) 

+	return FALSE;

+

+    hasUnderlay = FALSE;

+

+    while(1) {

+	if((pTree = MIOVERLAY_GET_WINDOW_TREE(pChild))) {

+	    REGION_APPEND(pScreen, pReg, &pTree->borderClip);

+	    hasUnderlay = TRUE;

+	} else

+	if(pChild->firstChild) {

+	    pChild = pChild->firstChild;

+	    continue;

+	}

+

+	while(!pChild->nextSib && (pWin != pChild))

+	    pChild = pChild->parent;

+

+	if(pChild == pWin) break;

+

+	pChild = pChild->nextSib;

+    }

+

+    if(hasUnderlay) {

+	Bool overlap;

+	REGION_VALIDATE(pScreen, pReg, &overlap);

+    } 

+

+    return hasUnderlay;

+}

+

+

+static void 

+MarkUnderlayWindow(WindowPtr pWin)

+{

+    miOverlayTreePtr pTree = MIOVERLAY_GET_WINDOW_TREE(pWin);

+

+    if(pTree->valdata) return;

+    pTree->valdata = (miOverlayValDataPtr)xnfalloc(sizeof(miOverlayValDataRec));

+    pTree->valdata->oldAbsCorner.x = pWin->drawable.x;

+    pTree->valdata->oldAbsCorner.y = pWin->drawable.y;

+    pTree->valdata->borderVisible = NullRegion;

+}

diff --git a/xorg-server/mi/mipointer.c b/xorg-server/mi/mipointer.c
index 1b33f82d5..069a38bd8 100644
--- a/xorg-server/mi/mipointer.c
+++ b/xorg-server/mi/mipointer.c
@@ -1,592 +1,580 @@
-/*
-
-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/Xmd.h>
-# include   <X11/Xproto.h>
-# include   "misc.h"
-# include   "windowstr.h"
-# include   "pixmapstr.h"
-# include   "mi.h"
-# include   "scrnintstr.h"
-# include   "mipointrst.h"
-# include   "cursorstr.h"
-# include   "dixstruct.h"
-# include   "inputstr.h"
-
-static int miPointerScreenKeyIndex;
-DevPrivateKey miPointerScreenKey = &miPointerScreenKeyIndex;
-
-#define GetScreenPrivate(s) ((miPointerScreenPtr) \
-    dixLookupPrivate(&(s)->devPrivates, miPointerScreenKey))
-#define SetupScreen(s)	miPointerScreenPtr  pScreenPriv = GetScreenPrivate(s)
-
-static int miPointerPrivKeyIndex;
-static DevPrivateKey miPointerPrivKey = &miPointerPrivKeyIndex;
-
-#define MIPOINTER(dev) \
-    ((!IsMaster(dev) && !dev->u.master) ? \
-        (miPointerPtr)dixLookupPrivate(&(dev)->devPrivates, miPointerPrivKey): \
-        (miPointerPtr)dixLookupPrivate(&(GetMaster(dev, MASTER_POINTER))->devPrivates, miPointerPrivKey))
-
-static Bool miPointerRealizeCursor(DeviceIntPtr pDev, ScreenPtr pScreen, 
-                                   CursorPtr pCursor);
-static Bool miPointerUnrealizeCursor(DeviceIntPtr pDev, ScreenPtr pScreen, 
-                                     CursorPtr pCursor);
-static Bool miPointerDisplayCursor(DeviceIntPtr pDev, ScreenPtr pScreen, 
-                                   CursorPtr pCursor);
-static void miPointerConstrainCursor(DeviceIntPtr pDev, ScreenPtr pScreen,
-                                     BoxPtr pBox); 
-static void miPointerPointerNonInterestBox(DeviceIntPtr pDev, 
-                                           ScreenPtr pScreen, BoxPtr pBox);
-static void miPointerCursorLimits(DeviceIntPtr pDev, ScreenPtr pScreen,
-                                  CursorPtr pCursor, BoxPtr pHotBox, 
-                                  BoxPtr pTopLeftBox);
-static Bool miPointerSetCursorPosition(DeviceIntPtr pDev, ScreenPtr pScreen, 
-                                       int x, int y,
-				       Bool generateEvent);
-static Bool miPointerCloseScreen(int index, ScreenPtr pScreen);
-static void miPointerMove(DeviceIntPtr pDev, ScreenPtr pScreen, 
-                          int x, int y);
-static Bool miPointerDeviceInitialize(DeviceIntPtr pDev, ScreenPtr pScreen);
-static void miPointerDeviceCleanup(DeviceIntPtr pDev,
-                                   ScreenPtr pScreen);
-
-static EventList* events; /* for WarpPointer MotionNotifies */
-
-Bool
-miPointerInitialize (ScreenPtr                  pScreen,
-                     miPointerSpriteFuncPtr     spriteFuncs,
-                     miPointerScreenFuncPtr     screenFuncs,
-                     Bool                       waitForUpdate)
-{
-    miPointerScreenPtr	pScreenPriv;
-
-    pScreenPriv = xalloc (sizeof (miPointerScreenRec));
-    if (!pScreenPriv)
-	return FALSE;
-    pScreenPriv->spriteFuncs = spriteFuncs;
-    pScreenPriv->screenFuncs = screenFuncs;
-    /*
-     * check for uninitialized methods
-     */
-    if (!screenFuncs->EnqueueEvent)
-	screenFuncs->EnqueueEvent = mieqEnqueue;
-    if (!screenFuncs->NewEventScreen)
-	screenFuncs->NewEventScreen = mieqSwitchScreen;
-    pScreenPriv->waitForUpdate = waitForUpdate;
-    pScreenPriv->showTransparent = FALSE;
-    pScreenPriv->CloseScreen = pScreen->CloseScreen;
-    pScreen->CloseScreen = miPointerCloseScreen;
-    dixSetPrivate(&pScreen->devPrivates, miPointerScreenKey, pScreenPriv);
-    /*
-     * set up screen cursor method table
-     */
-    pScreen->ConstrainCursor = miPointerConstrainCursor;
-    pScreen->CursorLimits = miPointerCursorLimits;
-    pScreen->DisplayCursor = miPointerDisplayCursor;
-    pScreen->RealizeCursor = miPointerRealizeCursor;
-    pScreen->UnrealizeCursor = miPointerUnrealizeCursor;
-    pScreen->SetCursorPosition = miPointerSetCursorPosition;
-    pScreen->RecolorCursor = miRecolorCursor;
-    pScreen->PointerNonInterestBox = miPointerPointerNonInterestBox;
-    pScreen->DeviceCursorInitialize = miPointerDeviceInitialize;
-    pScreen->DeviceCursorCleanup = miPointerDeviceCleanup;
-
-    events = NULL;
-    return TRUE;
-}
-
-static Bool
-miPointerCloseScreen (int index, ScreenPtr pScreen)
-{
-#if 0
-    miPointerPtr pPointer;
-    DeviceIntPtr pDev;
-#endif
-
-    SetupScreen(pScreen);
-
-#if 0
-    for (pDev = inputInfo.devices; pDev; pDev = pDev->next)
-    {
-        if (DevHasCursor(pDev))
-        {
-            pPointer = MIPOINTER(pDev);
-
-            if (pScreen == pPointer->pScreen)
-                pPointer->pScreen = 0;
-            if (pScreen == pPointer->pSpriteScreen)
-                pPointer->pSpriteScreen = 0;
-        }
-    }
-
-    if (MIPOINTER(inputInfo.pointer)->pScreen == pScreen)
-        MIPOINTER(inputInfo.pointer)->pScreen = 0;
-    if (MIPOINTER(inputInfo.pointer)->pSpriteScreen == pScreen)
-        MIPOINTER(inputInfo.pointer)->pSpriteScreen = 0;
-#endif
-
-    pScreen->CloseScreen = pScreenPriv->CloseScreen;
-    xfree ((pointer) pScreenPriv);
-    FreeEventList(events, GetMaximumEventsNum());
-    events = NULL;
-    return (*pScreen->CloseScreen) (index, pScreen);
-}
-
-/*
- * DIX/DDX interface routines
- */
-
-static Bool
-miPointerRealizeCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor)
-{
-    SetupScreen(pScreen);
-    return (*pScreenPriv->spriteFuncs->RealizeCursor) (pDev, pScreen, pCursor);
-}
-
-static Bool
-miPointerUnrealizeCursor (DeviceIntPtr  pDev,
-                          ScreenPtr     pScreen,
-                          CursorPtr     pCursor)
-{
-    SetupScreen(pScreen);
-    return (*pScreenPriv->spriteFuncs->UnrealizeCursor) (pDev, pScreen, pCursor);
-}
-
-static Bool
-miPointerDisplayCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor)
-{
-    miPointerPtr pPointer;
-
-    /* return for keyboards */
-    if ((IsMaster(pDev) && !DevHasCursor(pDev)) ||
-        (!IsMaster(pDev) && pDev->u.master && !DevHasCursor(pDev->u.master)))
-            return FALSE;
-
-    pPointer = MIPOINTER(pDev);
-
-    pPointer->pCursor = pCursor;
-    pPointer->pScreen = pScreen;
-    miPointerUpdateSprite(pDev);
-    return TRUE;
-}
-
-static void
-miPointerConstrainCursor (DeviceIntPtr pDev, ScreenPtr pScreen, BoxPtr pBox)
-{
-    miPointerPtr pPointer;
-
-    pPointer = MIPOINTER(pDev);
-
-    pPointer->limits = *pBox;
-    pPointer->confined = PointerConfinedToScreen(pDev);
-}
-
-/*ARGSUSED*/
-static void
-miPointerPointerNonInterestBox (DeviceIntPtr    pDev,
-                                ScreenPtr       pScreen,
-                                BoxPtr          pBox)
-{
-    /* until DIX uses this, this will remain a stub */
-}
-
-/*ARGSUSED*/
-static void
-miPointerCursorLimits(DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
-                      BoxPtr pHotBox, BoxPtr pTopLeftBox)
-{
-    *pTopLeftBox = *pHotBox;
-}
-
-static Bool GenerateEvent;
-
-static Bool
-miPointerSetCursorPosition(DeviceIntPtr pDev, ScreenPtr pScreen,
-                           int x, int y, Bool generateEvent)
-{
-    SetupScreen (pScreen);
-
-    GenerateEvent = generateEvent;
-    /* device dependent - must pend signal and call miPointerWarpCursor */
-    (*pScreenPriv->screenFuncs->WarpCursor) (pDev, pScreen, x, y);
-    if (!generateEvent)
-	miPointerUpdateSprite(pDev);
-    return TRUE;
-}
-
-/* Set up sprite information for the device.
-   This function will be called once for each device after it is initialized
-   in the DIX.
- */
-static Bool
-miPointerDeviceInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)
-{
-    miPointerPtr pPointer;
-    SetupScreen (pScreen);
-
-    pPointer = xalloc(sizeof(miPointerRec));
-    if (!pPointer)
-        return FALSE;
-
-    pPointer->pScreen = NULL;
-    pPointer->pSpriteScreen = NULL;
-    pPointer->pCursor = NULL;
-    pPointer->pSpriteCursor = NULL;
-    pPointer->limits.x1 = 0;
-    pPointer->limits.x2 = 32767;
-    pPointer->limits.y1 = 0;
-    pPointer->limits.y2 = 32767;
-    pPointer->confined = FALSE;
-    pPointer->x = 0;
-    pPointer->y = 0;
-
-    if (!((*pScreenPriv->spriteFuncs->DeviceCursorInitialize)(pDev, pScreen)))
-    {
-        xfree(pPointer);
-        return FALSE;
-    }
-
-    dixSetPrivate(&pDev->devPrivates, miPointerPrivKey, pPointer);
-    return TRUE;
-}
-
-/* Clean up after device.
-   This function will be called once before the device is freed in the DIX
- */
-static void
-miPointerDeviceCleanup(DeviceIntPtr pDev, ScreenPtr pScreen)
-{
-    SetupScreen(pScreen);
-
-    if (!IsMaster(pDev) && pDev->u.master)
-        return;
-
-    (*pScreenPriv->spriteFuncs->DeviceCursorCleanup)(pDev, pScreen);
-    xfree(dixLookupPrivate(&pDev->devPrivates, miPointerPrivKey));
-    dixSetPrivate(&pDev->devPrivates, miPointerPrivKey, NULL);
-}
-
-
-/* Once signals are ignored, the WarpCursor function can call this */
-
-void
-miPointerWarpCursor (DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y)
-{
-    miPointerPtr pPointer;
-    BOOL changedScreen = FALSE;
-
-    SetupScreen (pScreen);
-    pPointer = MIPOINTER(pDev);
-
-    if (pPointer->pScreen != pScreen)
-    {
-	(*pScreenPriv->screenFuncs->NewEventScreen) (pDev, pScreen, TRUE);
-        changedScreen = TRUE;
-    }
-
-    if (GenerateEvent)
-    {
-	miPointerMove (pDev, pScreen, x, y);
-    }
-    else
-    {
-	/* everything from miPointerMove except the event and history */
-
-    	if (!pScreenPriv->waitForUpdate && pScreen == pPointer->pSpriteScreen)
-    	{
-	    pPointer->devx = x;
-	    pPointer->devy = y;
-	    if(pPointer->pCursor && !pPointer->pCursor->bits->emptyMask)
-		(*pScreenPriv->spriteFuncs->MoveCursor) (pDev, pScreen, x, y);
-    	}
-	pPointer->x = x;
-	pPointer->y = y;
-	pPointer->pScreen = pScreen;
-    }
-
-    /* Don't call USFS if we use Xinerama, otherwise the root window is
-     * updated to the second screen, and we never receive any events.
-     * (FDO bug #18668) */
-    if (changedScreen
-#ifdef PANORAMIX
-            && noPanoramiXExtension
-#endif
-       )
-        UpdateSpriteForScreen (pDev, pScreen) ;
-}
-
-/*
- * Pointer/CursorDisplay interface routines
- */
-
-/*
- * miPointerUpdateSprite
- *
- * Syncronize the sprite with the cursor - called from ProcessInputEvents
- */
-
-void
-miPointerUpdateSprite (DeviceIntPtr pDev)
-{
-    ScreenPtr		pScreen;
-    miPointerScreenPtr	pScreenPriv;
-    CursorPtr		pCursor;
-    int			x, y, devx, devy;
-    miPointerPtr        pPointer;
-
-    if (!pDev || !pDev->coreEvents)
-        return;
-
-    pPointer = MIPOINTER(pDev);
-
-    if (!pPointer)
-        return;
-
-    pScreen = pPointer->pScreen;
-    if (!pScreen)
-	return;
-
-    x = pPointer->x;
-    y = pPointer->y;
-    devx = pPointer->devx;
-    devy = pPointer->devy;
-
-    pScreenPriv = GetScreenPrivate (pScreen);
-    /*
-     * if the cursor has switched screens, disable the sprite
-     * on the old screen
-     */
-    if (pScreen != pPointer->pSpriteScreen)
-    {
-	if (pPointer->pSpriteScreen)
-	{
-	    miPointerScreenPtr  pOldPriv;
-    	
-	    pOldPriv = GetScreenPrivate (pPointer->pSpriteScreen);
-	    if (pPointer->pCursor)
-	    {
-	    	(*pOldPriv->spriteFuncs->SetCursor)
-			    	(pDev, pPointer->pSpriteScreen, NullCursor, 0, 0);
-	    }
-	    (*pOldPriv->screenFuncs->CrossScreen) (pPointer->pSpriteScreen, FALSE);
-	}
-	(*pScreenPriv->screenFuncs->CrossScreen) (pScreen, TRUE);
-	(*pScreenPriv->spriteFuncs->SetCursor)
-				(pDev, pScreen, pPointer->pCursor, x, y);
-	pPointer->devx = x;
-	pPointer->devy = y;
-	pPointer->pSpriteCursor = pPointer->pCursor;
-	pPointer->pSpriteScreen = pScreen;
-    }
-    /*
-     * if the cursor has changed, display the new one
-     */
-    else if (pPointer->pCursor != pPointer->pSpriteCursor)
-    {
-	pCursor = pPointer->pCursor;
-	if (!pCursor || (pCursor->bits->emptyMask && !pScreenPriv->showTransparent))
-	    pCursor = NullCursor;
-	(*pScreenPriv->spriteFuncs->SetCursor) (pDev, pScreen, pCursor, x, y);
-
-	pPointer->devx = x;
-	pPointer->devy = y;
-	pPointer->pSpriteCursor = pPointer->pCursor;
-    }
-    else if (x != devx || y != devy)
-    {
-	pPointer->devx = x;
-	pPointer->devy = y;
-	if(pPointer->pCursor && !pPointer->pCursor->bits->emptyMask)
-	    (*pScreenPriv->spriteFuncs->MoveCursor) (pDev, pScreen, x, y);
-    }
-}
-
-void
-miPointerSetScreen(DeviceIntPtr pDev, int screen_no, int x, int y)
-{
-	miPointerScreenPtr pScreenPriv;
-	ScreenPtr pScreen;
-        miPointerPtr pPointer;
-
-        pPointer = MIPOINTER(pDev);
-
-	pScreen = screenInfo.screens[screen_no];
-	pScreenPriv = GetScreenPrivate (pScreen);
-	(*pScreenPriv->screenFuncs->NewEventScreen) (pDev, pScreen, FALSE);
-	NewCurrentScreen (pDev, pScreen, x, y);
-
-        pPointer->limits.x2 = pScreen->width;
-        pPointer->limits.y2 = pScreen->height;
-}
-
-ScreenPtr
-miPointerCurrentScreen (void)
-{
-    return miPointerGetScreen(inputInfo.pointer);
-}
-
-ScreenPtr
-miPointerGetScreen(DeviceIntPtr pDev)
-{
-    miPointerPtr pPointer = MIPOINTER(pDev);
-    return (pPointer) ? pPointer->pScreen : NULL;
-}
-
-/* Move the pointer on the current screen,  and update the sprite. */
-static void
-miPointerMoved (DeviceIntPtr pDev, ScreenPtr pScreen,
-                int x, int y)
-{
-    miPointerPtr pPointer;
-    SetupScreen(pScreen);
-
-    pPointer = MIPOINTER(pDev);
-
-    /* Hack: We mustn't call into ->MoveCursor for anything but the
-     * VCP, as this may cause a non-HW rendered cursor to be rendered during
-     * SIGIO. This again leads to allocs during SIGIO which leads to SIGABRT.
-     */
-    if ((pDev == inputInfo.pointer || (!IsMaster(pDev) && pDev->u.master == inputInfo.pointer))
-        && !pScreenPriv->waitForUpdate && pScreen == pPointer->pSpriteScreen)
-    {
-	pPointer->devx = x;
-	pPointer->devy = y;
-	if(pPointer->pCursor && !pPointer->pCursor->bits->emptyMask)
-	    (*pScreenPriv->spriteFuncs->MoveCursor) (pDev, pScreen, x, y);
-    }
-
-    pPointer->x = x;
-    pPointer->y = y;
-    pPointer->pScreen = pScreen;
-}
-
-void
-miPointerSetPosition(DeviceIntPtr pDev, int *x, int *y)
-{
-    miPointerScreenPtr	pScreenPriv;
-    ScreenPtr		pScreen;
-    ScreenPtr		newScreen;
-
-    miPointerPtr        pPointer; 
-
-    if (!pDev || !pDev->coreEvents)
-        return;
-
-    pPointer = MIPOINTER(pDev);
-    pScreen = pPointer->pScreen;
-    if (!pScreen)
-	return;	    /* called before ready */
-
-    if (*x < 0 || *x >= pScreen->width || *y < 0 || *y >= pScreen->height)
-    {
-	pScreenPriv = GetScreenPrivate (pScreen);
-	if (!pPointer->confined)
-	{
-	    newScreen = pScreen;
-	    (*pScreenPriv->screenFuncs->CursorOffScreen) (&newScreen, x, y);
-	    if (newScreen != pScreen)
-	    {
-		pScreen = newScreen;
-		(*pScreenPriv->screenFuncs->NewEventScreen) (pDev, pScreen,
-							     FALSE);
-		pScreenPriv = GetScreenPrivate (pScreen);
-	    	/* Smash the confine to the new screen */
-                pPointer->limits.x2 = pScreen->width;
-                pPointer->limits.y2 = pScreen->height;
-	    }
-	}
-    }
-    /* Constrain the sprite to the current limits. */
-    if (*x < pPointer->limits.x1)
-	*x = pPointer->limits.x1;
-    if (*x >= pPointer->limits.x2)
-	*x = pPointer->limits.x2 - 1;
-    if (*y < pPointer->limits.y1)
-	*y = pPointer->limits.y1;
-    if (*y >= pPointer->limits.y2)
-	*y = pPointer->limits.y2 - 1;
-
-    if (pPointer->x == *x && pPointer->y == *y && 
-            pPointer->pScreen == pScreen) 
-        return;
-
-    miPointerMoved(pDev, pScreen, *x, *y);
-}
-
-void
-miPointerGetPosition(DeviceIntPtr pDev, int *x, int *y)
-{
-    *x = MIPOINTER(pDev)->x;
-    *y = MIPOINTER(pDev)->y;
-}
-
-#ifdef XQUARTZ
-#include <pthread.h>
-void darwinEvents_lock(void);
-void darwinEvents_unlock(void);
-#endif
-
-void
-miPointerMove (DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y)
-{
-    int i, nevents;
-    int valuators[2];
-
-    miPointerMoved(pDev, pScreen, x, y);
-
-    /* generate motion notify */
-    valuators[0] = x;
-    valuators[1] = y;
-
-    if (!events)
-    {
-        events = InitEventList(GetMaximumEventsNum());
-
-        if (!events)
-        {
-            FatalError("Could not allocate event store.\n");
-            return;
-        }
-    }
-
-    nevents = GetPointerEvents(events, pDev, MotionNotify, 0, POINTER_SCREEN | POINTER_ABSOLUTE, 0, 2, valuators);
-
-    OsBlockSignals();
-#ifdef XQUARTZ
-    darwinEvents_lock();
-#endif
-    for (i = 0; i < nevents; i++)
-        mieqEnqueue(pDev, (InternalEvent*)events[i].event);
-#ifdef XQUARTZ
-    darwinEvents_unlock();
-#endif
-    OsReleaseSignals();
-}
+/*

+

+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/Xmd.h>

+# include   <X11/Xproto.h>

+# include   "misc.h"

+# include   "windowstr.h"

+# include   "pixmapstr.h"

+# include   "mi.h"

+# include   "scrnintstr.h"

+# include   "mipointrst.h"

+# include   "cursorstr.h"

+# include   "dixstruct.h"

+# include   "inputstr.h"

+

+static int miPointerScreenKeyIndex;

+DevPrivateKey miPointerScreenKey = &miPointerScreenKeyIndex;

+

+#define GetScreenPrivate(s) ((miPointerScreenPtr) \

+    dixLookupPrivate(&(s)->devPrivates, miPointerScreenKey))

+#define SetupScreen(s)	miPointerScreenPtr  pScreenPriv = GetScreenPrivate(s)

+

+static int miPointerPrivKeyIndex;

+static DevPrivateKey miPointerPrivKey = &miPointerPrivKeyIndex;

+

+#define MIPOINTER(dev) \

+    ((!IsMaster(dev) && !dev->u.master) ? \

+        (miPointerPtr)dixLookupPrivate(&(dev)->devPrivates, miPointerPrivKey): \

+        (miPointerPtr)dixLookupPrivate(&(GetMaster(dev, MASTER_POINTER))->devPrivates, miPointerPrivKey))

+

+static Bool miPointerRealizeCursor(DeviceIntPtr pDev, ScreenPtr pScreen, 

+                                   CursorPtr pCursor);

+static Bool miPointerUnrealizeCursor(DeviceIntPtr pDev, ScreenPtr pScreen, 

+                                     CursorPtr pCursor);

+static Bool miPointerDisplayCursor(DeviceIntPtr pDev, ScreenPtr pScreen, 

+                                   CursorPtr pCursor);

+static void miPointerConstrainCursor(DeviceIntPtr pDev, ScreenPtr pScreen,

+                                     BoxPtr pBox); 

+static void miPointerCursorLimits(DeviceIntPtr pDev, ScreenPtr pScreen,

+                                  CursorPtr pCursor, BoxPtr pHotBox, 

+                                  BoxPtr pTopLeftBox);

+static Bool miPointerSetCursorPosition(DeviceIntPtr pDev, ScreenPtr pScreen, 

+                                       int x, int y,

+				       Bool generateEvent);

+static Bool miPointerCloseScreen(int index, ScreenPtr pScreen);

+static void miPointerMove(DeviceIntPtr pDev, ScreenPtr pScreen, 

+                          int x, int y);

+static Bool miPointerDeviceInitialize(DeviceIntPtr pDev, ScreenPtr pScreen);

+static void miPointerDeviceCleanup(DeviceIntPtr pDev,

+                                   ScreenPtr pScreen);

+

+static EventList* events; /* for WarpPointer MotionNotifies */

+

+Bool

+miPointerInitialize (ScreenPtr                  pScreen,

+                     miPointerSpriteFuncPtr     spriteFuncs,

+                     miPointerScreenFuncPtr     screenFuncs,

+                     Bool                       waitForUpdate)

+{

+    miPointerScreenPtr	pScreenPriv;

+

+    pScreenPriv = malloc(sizeof (miPointerScreenRec));

+    if (!pScreenPriv)

+	return FALSE;

+    pScreenPriv->spriteFuncs = spriteFuncs;

+    pScreenPriv->screenFuncs = screenFuncs;

+    /*

+     * check for uninitialized methods

+     */

+    if (!screenFuncs->EnqueueEvent)

+	screenFuncs->EnqueueEvent = mieqEnqueue;

+    if (!screenFuncs->NewEventScreen)

+	screenFuncs->NewEventScreen = mieqSwitchScreen;

+    pScreenPriv->waitForUpdate = waitForUpdate;

+    pScreenPriv->showTransparent = FALSE;

+    pScreenPriv->CloseScreen = pScreen->CloseScreen;

+    pScreen->CloseScreen = miPointerCloseScreen;

+    dixSetPrivate(&pScreen->devPrivates, miPointerScreenKey, pScreenPriv);

+    /*

+     * set up screen cursor method table

+     */

+    pScreen->ConstrainCursor = miPointerConstrainCursor;

+    pScreen->CursorLimits = miPointerCursorLimits;

+    pScreen->DisplayCursor = miPointerDisplayCursor;

+    pScreen->RealizeCursor = miPointerRealizeCursor;

+    pScreen->UnrealizeCursor = miPointerUnrealizeCursor;

+    pScreen->SetCursorPosition = miPointerSetCursorPosition;

+    pScreen->RecolorCursor = miRecolorCursor;

+    pScreen->DeviceCursorInitialize = miPointerDeviceInitialize;

+    pScreen->DeviceCursorCleanup = miPointerDeviceCleanup;

+

+    events = NULL;

+    return TRUE;

+}

+

+static Bool

+miPointerCloseScreen (int index, ScreenPtr pScreen)

+{

+#if 0

+    miPointerPtr pPointer;

+    DeviceIntPtr pDev;

+#endif

+

+    SetupScreen(pScreen);

+

+#if 0

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

+    {

+        if (DevHasCursor(pDev))

+        {

+            pPointer = MIPOINTER(pDev);

+

+            if (pScreen == pPointer->pScreen)

+                pPointer->pScreen = 0;

+            if (pScreen == pPointer->pSpriteScreen)

+                pPointer->pSpriteScreen = 0;

+        }

+    }

+

+    if (MIPOINTER(inputInfo.pointer)->pScreen == pScreen)

+        MIPOINTER(inputInfo.pointer)->pScreen = 0;

+    if (MIPOINTER(inputInfo.pointer)->pSpriteScreen == pScreen)

+        MIPOINTER(inputInfo.pointer)->pSpriteScreen = 0;

+#endif

+

+    pScreen->CloseScreen = pScreenPriv->CloseScreen;

+    free((pointer) pScreenPriv);

+    FreeEventList(events, GetMaximumEventsNum());

+    events = NULL;

+    return (*pScreen->CloseScreen) (index, pScreen);

+}

+

+/*

+ * DIX/DDX interface routines

+ */

+

+static Bool

+miPointerRealizeCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor)

+{

+    SetupScreen(pScreen);

+    return (*pScreenPriv->spriteFuncs->RealizeCursor) (pDev, pScreen, pCursor);

+}

+

+static Bool

+miPointerUnrealizeCursor (DeviceIntPtr  pDev,

+                          ScreenPtr     pScreen,

+                          CursorPtr     pCursor)

+{

+    SetupScreen(pScreen);

+    return (*pScreenPriv->spriteFuncs->UnrealizeCursor) (pDev, pScreen, pCursor);

+}

+

+static Bool

+miPointerDisplayCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor)

+{

+    miPointerPtr pPointer;

+

+    /* return for keyboards */

+    if ((IsMaster(pDev) && !DevHasCursor(pDev)) ||

+        (!IsMaster(pDev) && pDev->u.master && !DevHasCursor(pDev->u.master)))

+            return FALSE;

+

+    pPointer = MIPOINTER(pDev);

+

+    pPointer->pCursor = pCursor;

+    pPointer->pScreen = pScreen;

+    miPointerUpdateSprite(pDev);

+    return TRUE;

+}

+

+static void

+miPointerConstrainCursor (DeviceIntPtr pDev, ScreenPtr pScreen, BoxPtr pBox)

+{

+    miPointerPtr pPointer;

+

+    pPointer = MIPOINTER(pDev);

+

+    pPointer->limits = *pBox;

+    pPointer->confined = PointerConfinedToScreen(pDev);

+}

+

+/*ARGSUSED*/

+static void

+miPointerCursorLimits(DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,

+                      BoxPtr pHotBox, BoxPtr pTopLeftBox)

+{

+    *pTopLeftBox = *pHotBox;

+}

+

+static Bool GenerateEvent;

+

+static Bool

+miPointerSetCursorPosition(DeviceIntPtr pDev, ScreenPtr pScreen,

+                           int x, int y, Bool generateEvent)

+{

+    SetupScreen (pScreen);

+

+    GenerateEvent = generateEvent;

+    /* device dependent - must pend signal and call miPointerWarpCursor */

+    (*pScreenPriv->screenFuncs->WarpCursor) (pDev, pScreen, x, y);

+    if (!generateEvent)

+	miPointerUpdateSprite(pDev);

+    return TRUE;

+}

+

+/* Set up sprite information for the device.

+   This function will be called once for each device after it is initialized

+   in the DIX.

+ */

+static Bool

+miPointerDeviceInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)

+{

+    miPointerPtr pPointer;

+    SetupScreen (pScreen);

+

+    pPointer = malloc(sizeof(miPointerRec));

+    if (!pPointer)

+        return FALSE;

+

+    pPointer->pScreen = NULL;

+    pPointer->pSpriteScreen = NULL;

+    pPointer->pCursor = NULL;

+    pPointer->pSpriteCursor = NULL;

+    pPointer->limits.x1 = 0;

+    pPointer->limits.x2 = 32767;

+    pPointer->limits.y1 = 0;

+    pPointer->limits.y2 = 32767;

+    pPointer->confined = FALSE;

+    pPointer->x = 0;

+    pPointer->y = 0;

+

+    if (!((*pScreenPriv->spriteFuncs->DeviceCursorInitialize)(pDev, pScreen)))

+    {

+        free(pPointer);

+        return FALSE;

+    }

+

+    dixSetPrivate(&pDev->devPrivates, miPointerPrivKey, pPointer);

+    return TRUE;

+}

+

+/* Clean up after device.

+   This function will be called once before the device is freed in the DIX

+ */

+static void

+miPointerDeviceCleanup(DeviceIntPtr pDev, ScreenPtr pScreen)

+{

+    SetupScreen(pScreen);

+

+    if (!IsMaster(pDev) && pDev->u.master)

+        return;

+

+    (*pScreenPriv->spriteFuncs->DeviceCursorCleanup)(pDev, pScreen);

+    free(dixLookupPrivate(&pDev->devPrivates, miPointerPrivKey));

+    dixSetPrivate(&pDev->devPrivates, miPointerPrivKey, NULL);

+}

+

+

+/* Once signals are ignored, the WarpCursor function can call this */

+

+void

+miPointerWarpCursor (DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y)

+{

+    miPointerPtr pPointer;

+    BOOL changedScreen = FALSE;

+

+    SetupScreen (pScreen);

+    pPointer = MIPOINTER(pDev);

+

+    if (pPointer->pScreen != pScreen)

+    {

+	(*pScreenPriv->screenFuncs->NewEventScreen) (pDev, pScreen, TRUE);

+        changedScreen = TRUE;

+    }

+

+    if (GenerateEvent)

+    {

+	miPointerMove (pDev, pScreen, x, y);

+    }

+    else

+    {

+	/* everything from miPointerMove except the event and history */

+

+    	if (!pScreenPriv->waitForUpdate && pScreen == pPointer->pSpriteScreen)

+    	{

+	    pPointer->devx = x;

+	    pPointer->devy = y;

+	    if(pPointer->pCursor && !pPointer->pCursor->bits->emptyMask)

+		(*pScreenPriv->spriteFuncs->MoveCursor) (pDev, pScreen, x, y);

+    	}

+	pPointer->x = x;

+	pPointer->y = y;

+	pPointer->pScreen = pScreen;

+    }

+

+    /* Don't call USFS if we use Xinerama, otherwise the root window is

+     * updated to the second screen, and we never receive any events.

+     * (FDO bug #18668) */

+    if (changedScreen

+#ifdef PANORAMIX

+            && noPanoramiXExtension

+#endif

+       )

+        UpdateSpriteForScreen (pDev, pScreen) ;

+}

+

+/*

+ * Pointer/CursorDisplay interface routines

+ */

+

+/*

+ * miPointerUpdateSprite

+ *

+ * Syncronize the sprite with the cursor - called from ProcessInputEvents

+ */

+

+void

+miPointerUpdateSprite (DeviceIntPtr pDev)

+{

+    ScreenPtr		pScreen;

+    miPointerScreenPtr	pScreenPriv;

+    CursorPtr		pCursor;

+    int			x, y, devx, devy;

+    miPointerPtr        pPointer;

+

+    if (!pDev || !pDev->coreEvents)

+        return;

+

+    pPointer = MIPOINTER(pDev);

+

+    if (!pPointer)

+        return;

+

+    pScreen = pPointer->pScreen;

+    if (!pScreen)

+	return;

+

+    x = pPointer->x;

+    y = pPointer->y;

+    devx = pPointer->devx;

+    devy = pPointer->devy;

+

+    pScreenPriv = GetScreenPrivate (pScreen);

+    /*

+     * if the cursor has switched screens, disable the sprite

+     * on the old screen

+     */

+    if (pScreen != pPointer->pSpriteScreen)

+    {

+	if (pPointer->pSpriteScreen)

+	{

+	    miPointerScreenPtr  pOldPriv;

+    	

+	    pOldPriv = GetScreenPrivate (pPointer->pSpriteScreen);

+	    if (pPointer->pCursor)

+	    {

+	    	(*pOldPriv->spriteFuncs->SetCursor)

+			    	(pDev, pPointer->pSpriteScreen, NullCursor, 0, 0);

+	    }

+	    (*pOldPriv->screenFuncs->CrossScreen) (pPointer->pSpriteScreen, FALSE);

+	}

+	(*pScreenPriv->screenFuncs->CrossScreen) (pScreen, TRUE);

+	(*pScreenPriv->spriteFuncs->SetCursor)

+				(pDev, pScreen, pPointer->pCursor, x, y);

+	pPointer->devx = x;

+	pPointer->devy = y;

+	pPointer->pSpriteCursor = pPointer->pCursor;

+	pPointer->pSpriteScreen = pScreen;

+    }

+    /*

+     * if the cursor has changed, display the new one

+     */

+    else if (pPointer->pCursor != pPointer->pSpriteCursor)

+    {

+	pCursor = pPointer->pCursor;

+	if (!pCursor || (pCursor->bits->emptyMask && !pScreenPriv->showTransparent))

+	    pCursor = NullCursor;

+	(*pScreenPriv->spriteFuncs->SetCursor) (pDev, pScreen, pCursor, x, y);

+

+	pPointer->devx = x;

+	pPointer->devy = y;

+	pPointer->pSpriteCursor = pPointer->pCursor;

+    }

+    else if (x != devx || y != devy)

+    {

+	pPointer->devx = x;

+	pPointer->devy = y;

+	if(pPointer->pCursor && !pPointer->pCursor->bits->emptyMask)

+	    (*pScreenPriv->spriteFuncs->MoveCursor) (pDev, pScreen, x, y);

+    }

+}

+

+void

+miPointerSetScreen(DeviceIntPtr pDev, int screen_no, int x, int y)

+{

+	miPointerScreenPtr pScreenPriv;

+	ScreenPtr pScreen;

+        miPointerPtr pPointer;

+

+        pPointer = MIPOINTER(pDev);

+

+	pScreen = screenInfo.screens[screen_no];

+	pScreenPriv = GetScreenPrivate (pScreen);

+	(*pScreenPriv->screenFuncs->NewEventScreen) (pDev, pScreen, FALSE);

+	NewCurrentScreen (pDev, pScreen, x, y);

+

+        pPointer->limits.x2 = pScreen->width;

+        pPointer->limits.y2 = pScreen->height;

+}

+

+ScreenPtr

+miPointerCurrentScreen (void)

+{

+    return miPointerGetScreen(inputInfo.pointer);

+}

+

+ScreenPtr

+miPointerGetScreen(DeviceIntPtr pDev)

+{

+    miPointerPtr pPointer = MIPOINTER(pDev);

+    return (pPointer) ? pPointer->pScreen : NULL;

+}

+

+/* Move the pointer on the current screen,  and update the sprite. */

+static void

+miPointerMoved (DeviceIntPtr pDev, ScreenPtr pScreen,

+                int x, int y)

+{

+    miPointerPtr pPointer;

+    SetupScreen(pScreen);

+

+    pPointer = MIPOINTER(pDev);

+

+    /* Hack: We mustn't call into ->MoveCursor for anything but the

+     * VCP, as this may cause a non-HW rendered cursor to be rendered during

+     * SIGIO. This again leads to allocs during SIGIO which leads to SIGABRT.

+     */

+    if ((pDev == inputInfo.pointer || (!IsMaster(pDev) && pDev->u.master == inputInfo.pointer))

+        && !pScreenPriv->waitForUpdate && pScreen == pPointer->pSpriteScreen)

+    {

+	pPointer->devx = x;

+	pPointer->devy = y;

+	if(pPointer->pCursor && !pPointer->pCursor->bits->emptyMask)

+	    (*pScreenPriv->spriteFuncs->MoveCursor) (pDev, pScreen, x, y);

+    }

+

+    pPointer->x = x;

+    pPointer->y = y;

+    pPointer->pScreen = pScreen;

+}

+

+void

+miPointerSetPosition(DeviceIntPtr pDev, int *x, int *y)

+{

+    miPointerScreenPtr	pScreenPriv;

+    ScreenPtr		pScreen;

+    ScreenPtr		newScreen;

+

+    miPointerPtr        pPointer; 

+

+    if (!pDev || !pDev->coreEvents)

+        return;

+

+    pPointer = MIPOINTER(pDev);

+    pScreen = pPointer->pScreen;

+    if (!pScreen)

+	return;	    /* called before ready */

+

+    if (*x < 0 || *x >= pScreen->width || *y < 0 || *y >= pScreen->height)

+    {

+	pScreenPriv = GetScreenPrivate (pScreen);

+	if (!pPointer->confined)

+	{

+	    newScreen = pScreen;

+	    (*pScreenPriv->screenFuncs->CursorOffScreen) (&newScreen, x, y);

+	    if (newScreen != pScreen)

+	    {

+		pScreen = newScreen;

+		(*pScreenPriv->screenFuncs->NewEventScreen) (pDev, pScreen,

+							     FALSE);

+		pScreenPriv = GetScreenPrivate (pScreen);

+	    	/* Smash the confine to the new screen */

+                pPointer->limits.x2 = pScreen->width;

+                pPointer->limits.y2 = pScreen->height;

+	    }

+	}

+    }

+    /* Constrain the sprite to the current limits. */

+    if (*x < pPointer->limits.x1)

+	*x = pPointer->limits.x1;

+    if (*x >= pPointer->limits.x2)

+	*x = pPointer->limits.x2 - 1;

+    if (*y < pPointer->limits.y1)

+	*y = pPointer->limits.y1;

+    if (*y >= pPointer->limits.y2)

+	*y = pPointer->limits.y2 - 1;

+

+    if (pPointer->x == *x && pPointer->y == *y && 

+            pPointer->pScreen == pScreen) 

+        return;

+

+    miPointerMoved(pDev, pScreen, *x, *y);

+}

+

+void

+miPointerGetPosition(DeviceIntPtr pDev, int *x, int *y)

+{

+    *x = MIPOINTER(pDev)->x;

+    *y = MIPOINTER(pDev)->y;

+}

+

+#ifdef XQUARTZ

+#include <pthread.h>

+void darwinEvents_lock(void);

+void darwinEvents_unlock(void);

+#endif

+

+void

+miPointerMove (DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y)

+{

+    int i, nevents;

+    int valuators[2];

+

+    miPointerMoved(pDev, pScreen, x, y);

+

+    /* generate motion notify */

+    valuators[0] = x;

+    valuators[1] = y;

+

+    if (!events)

+    {

+        events = InitEventList(GetMaximumEventsNum());

+

+        if (!events)

+        {

+            FatalError("Could not allocate event store.\n");

+            return;

+        }

+    }

+

+    nevents = GetPointerEvents(events, pDev, MotionNotify, 0, POINTER_SCREEN | POINTER_ABSOLUTE, 0, 2, valuators);

+

+    OsBlockSignals();

+#ifdef XQUARTZ

+    darwinEvents_lock();

+#endif

+    for (i = 0; i < nevents; i++)

+        mieqEnqueue(pDev, (InternalEvent*)events[i].event);

+#ifdef XQUARTZ

+    darwinEvents_unlock();

+#endif

+    OsReleaseSignals();

+}

diff --git a/xorg-server/mi/mipolycon.c b/xorg-server/mi/mipolycon.c
index 79384881d..170b2aa1a 100644
--- a/xorg-server/mi/mipolycon.c
+++ b/xorg-server/mi/mipolycon.c
@@ -1,247 +1,247 @@
-/***********************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include "gcstruct.h"
-#include "pixmap.h"
-#include "mi.h"
-#include "miscanfill.h"
-
-static int getPolyYBounds(DDXPointPtr pts, int n, int *by, int *ty);
-
-/*
- *     convexpoly.c
- *
- *     Written by Brian Kelleher; Dec. 1985.
- *
- *     Fill a convex polygon.  If the given polygon
- *     is not convex, then the result is undefined.
- *     The algorithm is to order the edges from smallest
- *     y to largest by partitioning the array into a left
- *     edge list and a right edge list.  The algorithm used
- *     to traverse each edge is an extension of Bresenham's
- *     line algorithm with y as the major axis.
- *     For a derivation of the algorithm, see the author of
- *     this code.
- */
-Bool
-miFillConvexPoly(
-    DrawablePtr dst,
-    GCPtr	pgc,
-    int		count,                /* number of points        */
-    DDXPointPtr ptsIn                 /* the points              */
-    )
-{
-    int xl = 0, xr = 0; /* x vals of left and right edges */
-    int dl = 0, dr = 0; /* decision variables             */
-    int ml = 0, m1l = 0;/* left edge slope and slope+1    */
-    int mr = 0, m1r = 0;         /* right edge slope and slope+1   */
-    int incr1l = 0, incr2l = 0;  /* left edge error increments     */
-    int incr1r = 0, incr2r = 0;  /* right edge error increments    */
-    int dy;                      /* delta y                        */
-    int y;                       /* current scanline               */
-    int left, right;             /* indices to first endpoints     */
-    int i;                       /* loop counter                   */
-    int nextleft, nextright;     /* indices to second endpoints    */
-    DDXPointPtr ptsOut, FirstPoint; /* output buffer               */
-    int *width, *FirstWidth;     /* output buffer                  */
-    int imin;                    /* index of smallest vertex (in y) */
-    int ymin;                    /* y-extents of polygon            */
-    int ymax;
-
-    /*
-     *  find leftx, bottomy, rightx, topy, and the index
-     *  of bottomy. Also translate the points.
-     */
-    imin = getPolyYBounds(ptsIn, count, &ymin, &ymax);
-
-    dy = ymax - ymin + 1;
-    if ((count < 3) || (dy < 0))
-	return(TRUE);
-    ptsOut = FirstPoint = xalloc(sizeof(DDXPointRec)*dy);
-    width = FirstWidth = xalloc(sizeof(int) * dy);
-    if(!FirstPoint || !FirstWidth)
-    {
-	if (FirstWidth) xfree(FirstWidth);
-	if (FirstPoint) xfree(FirstPoint);
-	return(FALSE);
-    }
-
-    nextleft = nextright = imin;
-    y = ptsIn[nextleft].y;
-
-    /*
-     *  loop through all edges of the polygon
-     */
-    do {
-        /*
-         *  add a left edge if we need to
-         */
-        if (ptsIn[nextleft].y == y) {
-            left = nextleft;
-
-            /*
-             *  find the next edge, considering the end
-             *  conditions of the array.
-             */
-            nextleft++;
-            if (nextleft >= count)
-                nextleft = 0;
-
-            /*
-             *  now compute all of the random information
-             *  needed to run the iterative algorithm.
-             */
-            BRESINITPGON(ptsIn[nextleft].y-ptsIn[left].y,
-                         ptsIn[left].x,ptsIn[nextleft].x,
-                         xl, dl, ml, m1l, incr1l, incr2l);
-        }
-
-        /*
-         *  add a right edge if we need to
-         */
-        if (ptsIn[nextright].y == y) {
-            right = nextright;
-
-            /*
-             *  find the next edge, considering the end
-             *  conditions of the array.
-             */
-            nextright--;
-            if (nextright < 0)
-                nextright = count-1;
-
-            /*
-             *  now compute all of the random information
-             *  needed to run the iterative algorithm.
-             */
-            BRESINITPGON(ptsIn[nextright].y-ptsIn[right].y,
-                         ptsIn[right].x,ptsIn[nextright].x,
-                         xr, dr, mr, m1r, incr1r, incr2r);
-        }
-
-        /*
-         *  generate scans to fill while we still have
-         *  a right edge as well as a left edge.
-         */
-        i = min(ptsIn[nextleft].y, ptsIn[nextright].y) - y;
-	/* in case we're called with non-convex polygon */
-	if(i < 0)
-        {
-	    xfree(FirstWidth);
-	    xfree(FirstPoint);
-	    return(TRUE);
-	}
-        while (i-- > 0) 
-        {
-            ptsOut->y = y;
-
-            /*
-             *  reverse the edges if necessary
-             */
-            if (xl < xr) 
-            {
-                *(width++) = xr - xl;
-                (ptsOut++)->x = xl;
-            }
-            else 
-            {
-                *(width++) = xl - xr;
-                (ptsOut++)->x = xr;
-            }
-            y++;
-
-            /* increment down the edges */
-            BRESINCRPGON(dl, xl, ml, m1l, incr1l, incr2l);
-            BRESINCRPGON(dr, xr, mr, m1r, incr1r, incr2r);
-        }
-    }  while (y != ymax);
-
-    /*
-     * Finally, fill the <remaining> spans
-     */
-    (*pgc->ops->FillSpans)(dst, pgc, 
-		      ptsOut-FirstPoint,FirstPoint,FirstWidth,
-		      1);
-    xfree(FirstWidth);
-    xfree(FirstPoint);
-    return(TRUE);
-}
-
-
-/*
- *     Find the index of the point with the smallest y.
- */
-static int
-getPolyYBounds(DDXPointPtr pts, int n, int *by, int *ty)
-{
-    DDXPointPtr ptMin;
-    int ymin, ymax;
-    DDXPointPtr ptsStart = pts;
-
-    ptMin = pts;
-    ymin = ymax = (pts++)->y;
-
-    while (--n > 0) {
-        if (pts->y < ymin)
-	{
-            ptMin = pts;
-            ymin = pts->y;
-        }
-	if(pts->y > ymax)
-            ymax = pts->y;
-
-        pts++;
-    }
-
-    *by = ymin;
-    *ty = ymax;
-    return(ptMin-ptsStart);
-}
+/***********************************************************

+

+Copyright 1987, 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.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+******************************************************************/

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include "gcstruct.h"

+#include "pixmap.h"

+#include "mi.h"

+#include "miscanfill.h"

+

+static int getPolyYBounds(DDXPointPtr pts, int n, int *by, int *ty);

+

+/*

+ *     convexpoly.c

+ *

+ *     Written by Brian Kelleher; Dec. 1985.

+ *

+ *     Fill a convex polygon.  If the given polygon

+ *     is not convex, then the result is undefined.

+ *     The algorithm is to order the edges from smallest

+ *     y to largest by partitioning the array into a left

+ *     edge list and a right edge list.  The algorithm used

+ *     to traverse each edge is an extension of Bresenham's

+ *     line algorithm with y as the major axis.

+ *     For a derivation of the algorithm, see the author of

+ *     this code.

+ */

+Bool

+miFillConvexPoly(

+    DrawablePtr dst,

+    GCPtr	pgc,

+    int		count,                /* number of points        */

+    DDXPointPtr ptsIn                 /* the points              */

+    )

+{

+    int xl = 0, xr = 0; /* x vals of left and right edges */

+    int dl = 0, dr = 0; /* decision variables             */

+    int ml = 0, m1l = 0;/* left edge slope and slope+1    */

+    int mr = 0, m1r = 0;         /* right edge slope and slope+1   */

+    int incr1l = 0, incr2l = 0;  /* left edge error increments     */

+    int incr1r = 0, incr2r = 0;  /* right edge error increments    */

+    int dy;                      /* delta y                        */

+    int y;                       /* current scanline               */

+    int left, right;             /* indices to first endpoints     */

+    int i;                       /* loop counter                   */

+    int nextleft, nextright;     /* indices to second endpoints    */

+    DDXPointPtr ptsOut, FirstPoint; /* output buffer               */

+    int *width, *FirstWidth;     /* output buffer                  */

+    int imin;                    /* index of smallest vertex (in y) */

+    int ymin;                    /* y-extents of polygon            */

+    int ymax;

+

+    /*

+     *  find leftx, bottomy, rightx, topy, and the index

+     *  of bottomy. Also translate the points.

+     */

+    imin = getPolyYBounds(ptsIn, count, &ymin, &ymax);

+

+    dy = ymax - ymin + 1;

+    if ((count < 3) || (dy < 0))

+	return(TRUE);

+    ptsOut = FirstPoint = malloc(sizeof(DDXPointRec)*dy);

+    width = FirstWidth = malloc(sizeof(int) * dy);

+    if(!FirstPoint || !FirstWidth)

+    {

+	if (FirstWidth) free(FirstWidth);

+	if (FirstPoint) free(FirstPoint);

+	return(FALSE);

+    }

+

+    nextleft = nextright = imin;

+    y = ptsIn[nextleft].y;

+

+    /*

+     *  loop through all edges of the polygon

+     */

+    do {

+        /*

+         *  add a left edge if we need to

+         */

+        if (ptsIn[nextleft].y == y) {

+            left = nextleft;

+

+            /*

+             *  find the next edge, considering the end

+             *  conditions of the array.

+             */

+            nextleft++;

+            if (nextleft >= count)

+                nextleft = 0;

+

+            /*

+             *  now compute all of the random information

+             *  needed to run the iterative algorithm.

+             */

+            BRESINITPGON(ptsIn[nextleft].y-ptsIn[left].y,

+                         ptsIn[left].x,ptsIn[nextleft].x,

+                         xl, dl, ml, m1l, incr1l, incr2l);

+        }

+

+        /*

+         *  add a right edge if we need to

+         */

+        if (ptsIn[nextright].y == y) {

+            right = nextright;

+

+            /*

+             *  find the next edge, considering the end

+             *  conditions of the array.

+             */

+            nextright--;

+            if (nextright < 0)

+                nextright = count-1;

+

+            /*

+             *  now compute all of the random information

+             *  needed to run the iterative algorithm.

+             */

+            BRESINITPGON(ptsIn[nextright].y-ptsIn[right].y,

+                         ptsIn[right].x,ptsIn[nextright].x,

+                         xr, dr, mr, m1r, incr1r, incr2r);

+        }

+

+        /*

+         *  generate scans to fill while we still have

+         *  a right edge as well as a left edge.

+         */

+        i = min(ptsIn[nextleft].y, ptsIn[nextright].y) - y;

+	/* in case we're called with non-convex polygon */

+	if(i < 0)

+        {

+	    free(FirstWidth);

+	    free(FirstPoint);

+	    return(TRUE);

+	}

+        while (i-- > 0) 

+        {

+            ptsOut->y = y;

+

+            /*

+             *  reverse the edges if necessary

+             */

+            if (xl < xr) 

+            {

+                *(width++) = xr - xl;

+                (ptsOut++)->x = xl;

+            }

+            else 

+            {

+                *(width++) = xl - xr;

+                (ptsOut++)->x = xr;

+            }

+            y++;

+

+            /* increment down the edges */

+            BRESINCRPGON(dl, xl, ml, m1l, incr1l, incr2l);

+            BRESINCRPGON(dr, xr, mr, m1r, incr1r, incr2r);

+        }

+    }  while (y != ymax);

+

+    /*

+     * Finally, fill the <remaining> spans

+     */

+    (*pgc->ops->FillSpans)(dst, pgc, 

+		      ptsOut-FirstPoint,FirstPoint,FirstWidth,

+		      1);

+    free(FirstWidth);

+    free(FirstPoint);

+    return(TRUE);

+}

+

+

+/*

+ *     Find the index of the point with the smallest y.

+ */

+static int

+getPolyYBounds(DDXPointPtr pts, int n, int *by, int *ty)

+{

+    DDXPointPtr ptMin;

+    int ymin, ymax;

+    DDXPointPtr ptsStart = pts;

+

+    ptMin = pts;

+    ymin = ymax = (pts++)->y;

+

+    while (--n > 0) {

+        if (pts->y < ymin)

+	{

+            ptMin = pts;

+            ymin = pts->y;

+        }

+	if(pts->y > ymax)

+            ymax = pts->y;

+

+        pts++;

+    }

+

+    *by = ymin;

+    *ty = ymax;

+    return(ptMin-ptsStart);

+}

diff --git a/xorg-server/mi/mipolygen.c b/xorg-server/mi/mipolygen.c
index 4744583c3..3dbf68960 100644
--- a/xorg-server/mi/mipolygen.c
+++ b/xorg-server/mi/mipolygen.c
@@ -1,230 +1,230 @@
-/***********************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include "gcstruct.h"
-#include "miscanfill.h"
-#include "mipoly.h"
-#include "pixmap.h"
-#include "mi.h"
-
-/*
- *
- *     Written by Brian Kelleher;  Oct. 1985
- *
- *     Routine to fill a polygon.  Two fill rules are
- *     supported: frWINDING and frEVENODD.
- *
- *     See fillpoly.h for a complete description of the algorithm.
- */
-
-Bool
-miFillGeneralPoly(
-    DrawablePtr dst,
-    GCPtr	pgc,
-    int		count,              /* number of points        */
-    DDXPointPtr ptsIn               /* the points              */
-    )
-{
-    EdgeTableEntry *pAET;  /* the Active Edge Table   */
-    int y;                 /* the current scanline    */
-    int nPts = 0;          /* number of pts in buffer */
-    EdgeTableEntry *pWETE; /* Winding Edge Table      */
-    ScanLineList *pSLL;    /* Current ScanLineList    */
-    DDXPointPtr ptsOut;      /* ptr to output buffers   */
-    int *width;
-    DDXPointRec FirstPoint[NUMPTSTOBUFFER]; /* the output buffers */
-    int FirstWidth[NUMPTSTOBUFFER];
-    EdgeTableEntry *pPrevAET;       /* previous AET entry      */
-    EdgeTable ET;                   /* Edge Table header node  */
-    EdgeTableEntry AET;             /* Active ET header node   */
-    EdgeTableEntry *pETEs;          /* Edge Table Entries buff */
-    ScanLineListBlock SLLBlock;     /* header for ScanLineList */
-    int fixWAET = 0;
-
-    if (count < 3)
-	return(TRUE);
-
-    if(!(pETEs = xalloc(sizeof(EdgeTableEntry) * count)))
-	return(FALSE);
-    ptsOut = FirstPoint;
-    width = FirstWidth;
-    if (!miCreateETandAET(count, ptsIn, &ET, &AET, pETEs, &SLLBlock))
-    {
-	xfree(pETEs);
-	return(FALSE);
-    }
-    pSLL = ET.scanlines.next;
-
-    if (pgc->fillRule == EvenOddRule) 
-    {
-        /*
-         *  for each scanline
-         */
-        for (y = ET.ymin; y < ET.ymax; y++) 
-        {
-            /*
-             *  Add a new edge to the active edge table when we
-             *  get to the next edge.
-             */
-            if (pSLL && y == pSLL->scanline) 
-            {
-                miloadAET(&AET, pSLL->edgelist);
-                pSLL = pSLL->next;
-            }
-            pPrevAET = &AET;
-            pAET = AET.next;
-
-            /*
-             *  for each active edge
-             */
-            while (pAET) 
-            {
-                ptsOut->x = pAET->bres.minor;
-		ptsOut++->y = y;
-                *width++ = pAET->next->bres.minor - pAET->bres.minor;
-                nPts++;
-
-                /*
-                 *  send out the buffer when its full
-                 */
-                if (nPts == NUMPTSTOBUFFER) 
-		{
-		    (*pgc->ops->FillSpans)(dst, pgc,
-				      nPts, FirstPoint, FirstWidth,
-				      1);
-                    ptsOut = FirstPoint;
-                    width = FirstWidth;
-                    nPts = 0;
-                }
-                EVALUATEEDGEEVENODD(pAET, pPrevAET, y)
-                EVALUATEEDGEEVENODD(pAET, pPrevAET, y);
-            }
-            miInsertionSort(&AET);
-        }
-    }
-    else      /* default to WindingNumber */
-    {
-        /*
-         *  for each scanline
-         */
-        for (y = ET.ymin; y < ET.ymax; y++) 
-        {
-            /*
-             *  Add a new edge to the active edge table when we
-             *  get to the next edge.
-             */
-            if (pSLL && y == pSLL->scanline) 
-            {
-                miloadAET(&AET, pSLL->edgelist);
-                micomputeWAET(&AET);
-                pSLL = pSLL->next;
-            }
-            pPrevAET = &AET;
-            pAET = AET.next;
-            pWETE = pAET;
-
-            /*
-             *  for each active edge
-             */
-            while (pAET) 
-            {
-                /*
-                 *  if the next edge in the active edge table is
-                 *  also the next edge in the winding active edge
-                 *  table.
-                 */
-                if (pWETE == pAET) 
-                {
-                    ptsOut->x = pAET->bres.minor;
-		    ptsOut++->y = y;
-                    *width++ = pAET->nextWETE->bres.minor - pAET->bres.minor;
-                    nPts++;
-
-                    /*
-                     *  send out the buffer
-                     */
-                    if (nPts == NUMPTSTOBUFFER) 
-                    {
-			(*pgc->ops->FillSpans)(dst, pgc, nPts, FirstPoint,
-			                  FirstWidth, 1);
-                        ptsOut = FirstPoint;
-                        width  = FirstWidth;
-                        nPts = 0;
-                    }
-
-                    pWETE = pWETE->nextWETE;
-                    while (pWETE != pAET)
-                        EVALUATEEDGEWINDING(pAET, pPrevAET, y, fixWAET);
-                    pWETE = pWETE->nextWETE;
-                }
-                EVALUATEEDGEWINDING(pAET, pPrevAET, y, fixWAET);
-            }
-
-            /*
-             *  reevaluate the Winding active edge table if we
-             *  just had to resort it or if we just exited an edge.
-             */
-            if (miInsertionSort(&AET) || fixWAET) 
-            {
-                micomputeWAET(&AET);
-                fixWAET = 0;
-            }
-        }
-    }
-
-    /*
-     *     Get any spans that we missed by buffering
-     */
-    (*pgc->ops->FillSpans)(dst, pgc, nPts, FirstPoint, FirstWidth, 1);
-    xfree(pETEs);
-    miFreeStorage(SLLBlock.next);
-    return(TRUE);
-}
+/***********************************************************

+

+Copyright 1987, 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.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+******************************************************************/

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <X11/X.h>

+#include "gcstruct.h"

+#include "miscanfill.h"

+#include "mipoly.h"

+#include "pixmap.h"

+#include "mi.h"

+

+/*

+ *

+ *     Written by Brian Kelleher;  Oct. 1985

+ *

+ *     Routine to fill a polygon.  Two fill rules are

+ *     supported: frWINDING and frEVENODD.

+ *

+ *     See fillpoly.h for a complete description of the algorithm.

+ */

+

+Bool

+miFillGeneralPoly(

+    DrawablePtr dst,

+    GCPtr	pgc,

+    int		count,              /* number of points        */

+    DDXPointPtr ptsIn               /* the points              */

+    )

+{

+    EdgeTableEntry *pAET;  /* the Active Edge Table   */

+    int y;                 /* the current scanline    */

+    int nPts = 0;          /* number of pts in buffer */

+    EdgeTableEntry *pWETE; /* Winding Edge Table      */

+    ScanLineList *pSLL;    /* Current ScanLineList    */

+    DDXPointPtr ptsOut;      /* ptr to output buffers   */

+    int *width;

+    DDXPointRec FirstPoint[NUMPTSTOBUFFER]; /* the output buffers */

+    int FirstWidth[NUMPTSTOBUFFER];

+    EdgeTableEntry *pPrevAET;       /* previous AET entry      */

+    EdgeTable ET;                   /* Edge Table header node  */

+    EdgeTableEntry AET;             /* Active ET header node   */

+    EdgeTableEntry *pETEs;          /* Edge Table Entries buff */

+    ScanLineListBlock SLLBlock;     /* header for ScanLineList */

+    int fixWAET = 0;

+

+    if (count < 3)

+	return(TRUE);

+

+    if(!(pETEs = malloc(sizeof(EdgeTableEntry) * count)))

+	return(FALSE);

+    ptsOut = FirstPoint;

+    width = FirstWidth;

+    if (!miCreateETandAET(count, ptsIn, &ET, &AET, pETEs, &SLLBlock))

+    {

+	free(pETEs);

+	return(FALSE);

+    }

+    pSLL = ET.scanlines.next;

+

+    if (pgc->fillRule == EvenOddRule) 

+    {

+        /*

+         *  for each scanline

+         */

+        for (y = ET.ymin; y < ET.ymax; y++) 

+        {

+            /*

+             *  Add a new edge to the active edge table when we

+             *  get to the next edge.

+             */

+            if (pSLL && y == pSLL->scanline) 

+            {

+                miloadAET(&AET, pSLL->edgelist);

+                pSLL = pSLL->next;

+            }

+            pPrevAET = &AET;

+            pAET = AET.next;

+

+            /*

+             *  for each active edge

+             */

+            while (pAET) 

+            {

+                ptsOut->x = pAET->bres.minor;

+		ptsOut++->y = y;

+                *width++ = pAET->next->bres.minor - pAET->bres.minor;

+                nPts++;

+

+                /*

+                 *  send out the buffer when its full

+                 */

+                if (nPts == NUMPTSTOBUFFER) 

+		{

+		    (*pgc->ops->FillSpans)(dst, pgc,

+				      nPts, FirstPoint, FirstWidth,

+				      1);

+                    ptsOut = FirstPoint;

+                    width = FirstWidth;

+                    nPts = 0;

+                }

+                EVALUATEEDGEEVENODD(pAET, pPrevAET, y)

+                EVALUATEEDGEEVENODD(pAET, pPrevAET, y);

+            }

+            miInsertionSort(&AET);

+        }

+    }

+    else      /* default to WindingNumber */

+    {

+        /*

+         *  for each scanline

+         */

+        for (y = ET.ymin; y < ET.ymax; y++) 

+        {

+            /*

+             *  Add a new edge to the active edge table when we

+             *  get to the next edge.

+             */

+            if (pSLL && y == pSLL->scanline) 

+            {

+                miloadAET(&AET, pSLL->edgelist);

+                micomputeWAET(&AET);

+                pSLL = pSLL->next;

+            }

+            pPrevAET = &AET;

+            pAET = AET.next;

+            pWETE = pAET;

+

+            /*

+             *  for each active edge

+             */

+            while (pAET) 

+            {

+                /*

+                 *  if the next edge in the active edge table is

+                 *  also the next edge in the winding active edge

+                 *  table.

+                 */

+                if (pWETE == pAET) 

+                {

+                    ptsOut->x = pAET->bres.minor;

+		    ptsOut++->y = y;

+                    *width++ = pAET->nextWETE->bres.minor - pAET->bres.minor;

+                    nPts++;

+

+                    /*

+                     *  send out the buffer

+                     */

+                    if (nPts == NUMPTSTOBUFFER) 

+                    {

+			(*pgc->ops->FillSpans)(dst, pgc, nPts, FirstPoint,

+			                  FirstWidth, 1);

+                        ptsOut = FirstPoint;

+                        width  = FirstWidth;

+                        nPts = 0;

+                    }

+

+                    pWETE = pWETE->nextWETE;

+                    while (pWETE != pAET)

+                        EVALUATEEDGEWINDING(pAET, pPrevAET, y, fixWAET);

+                    pWETE = pWETE->nextWETE;

+                }

+                EVALUATEEDGEWINDING(pAET, pPrevAET, y, fixWAET);

+            }

+

+            /*

+             *  reevaluate the Winding active edge table if we

+             *  just had to resort it or if we just exited an edge.

+             */

+            if (miInsertionSort(&AET) || fixWAET) 

+            {

+                micomputeWAET(&AET);

+                fixWAET = 0;

+            }

+        }

+    }

+

+    /*

+     *     Get any spans that we missed by buffering

+     */

+    (*pgc->ops->FillSpans)(dst, pgc, nPts, FirstPoint, FirstWidth, 1);

+    free(pETEs);

+    miFreeStorage(SLLBlock.next);

+    return(TRUE);

+}

diff --git a/xorg-server/mi/mipolypnt.c b/xorg-server/mi/mipolypnt.c
index 12771ee4e..29d3e29e1 100644
--- a/xorg-server/mi/mipolypnt.c
+++ b/xorg-server/mi/mipolypnt.c
@@ -1,125 +1,125 @@
-/***********************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xprotostr.h>
-#include "pixmapstr.h"
-#include "gcstruct.h"
-#include "windowstr.h"
-#include "mi.h"
-
-void
-miPolyPoint(
-    DrawablePtr		pDrawable,
-    GCPtr		pGC,
-    int			mode,		/* Origin or Previous */
-    int			npt,
-    xPoint		*pptInit
-    )
-{
-
-    int 		xorg;
-    int 		yorg;
-    int 		nptTmp;
-    XID			fsOld, fsNew;
-    int			*pwidthInit, *pwidth;
-    int			i;
-    xPoint 		*ppt;
-
-    if(!(pwidthInit = xalloc(npt * sizeof(int))))
-	return;
-
-    /* make pointlist origin relative */
-    if (mode == CoordModePrevious)
-    {
-        ppt = pptInit;
-        nptTmp = npt;
-	nptTmp--;
-	while(nptTmp--)
-	{
-	    ppt++;
-	    ppt->x += (ppt-1)->x;
-	    ppt->y += (ppt-1)->y;
-	}
-    }
-
-    if(pGC->miTranslate)
-    {
-	ppt = pptInit;
-	nptTmp = npt;
-	xorg = pDrawable->x;
-	yorg = pDrawable->y;
-	while(nptTmp--)
-	{
-	    ppt->x += xorg;
-	    ppt++->y += yorg;
-	}
-    }
-
-    fsOld = pGC->fillStyle;
-    fsNew = FillSolid;
-    if(pGC->fillStyle != FillSolid)
-    {
-	DoChangeGC(pGC, GCFillStyle, &fsNew, 0);
-	ValidateGC(pDrawable, pGC);
-    }
-    pwidth = pwidthInit;
-    for(i = 0; i < npt; i++)
-	*pwidth++ = 1;
-    (*pGC->ops->FillSpans)(pDrawable, pGC, npt, pptInit, pwidthInit, FALSE); 
-
-    if(fsOld != FillSolid)
-    {
-	DoChangeGC(pGC, GCFillStyle, &fsOld, 0);
-	ValidateGC(pDrawable, pGC);
-    }
-    xfree(pwidthInit);
-}
-
+/***********************************************************

+

+Copyright 1987, 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.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+******************************************************************/

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <X11/X.h>

+#include <X11/Xprotostr.h>

+#include "pixmapstr.h"

+#include "gcstruct.h"

+#include "windowstr.h"

+#include "mi.h"

+

+void

+miPolyPoint(

+    DrawablePtr		pDrawable,

+    GCPtr		pGC,

+    int			mode,		/* Origin or Previous */

+    int			npt,

+    xPoint		*pptInit

+    )

+{

+

+    int 		xorg;

+    int 		yorg;

+    int 		nptTmp;

+    ChangeGCVal		fsOld, fsNew;

+    int			*pwidthInit, *pwidth;

+    int			i;

+    xPoint 		*ppt;

+

+    if(!(pwidthInit = malloc(npt * sizeof(int))))

+	return;

+

+    /* make pointlist origin relative */

+    if (mode == CoordModePrevious)

+    {

+        ppt = pptInit;

+        nptTmp = npt;

+	nptTmp--;

+	while(nptTmp--)

+	{

+	    ppt++;

+	    ppt->x += (ppt-1)->x;

+	    ppt->y += (ppt-1)->y;

+	}

+    }

+

+    if(pGC->miTranslate)

+    {

+	ppt = pptInit;

+	nptTmp = npt;

+	xorg = pDrawable->x;

+	yorg = pDrawable->y;

+	while(nptTmp--)

+	{

+	    ppt->x += xorg;

+	    ppt++->y += yorg;

+	}

+    }

+

+    fsOld.val = pGC->fillStyle;

+    fsNew.val = FillSolid;

+    if(pGC->fillStyle != FillSolid)

+    {

+	ChangeGC(NullClient, pGC, GCFillStyle, &fsNew);

+	ValidateGC(pDrawable, pGC);

+    }

+    pwidth = pwidthInit;

+    for(i = 0; i < npt; i++)

+	*pwidth++ = 1;

+    (*pGC->ops->FillSpans)(pDrawable, pGC, npt, pptInit, pwidthInit, FALSE); 

+

+    if(fsOld.val != FillSolid)

+    {

+	ChangeGC(NullClient, pGC, GCFillStyle, &fsOld);

+	ValidateGC(pDrawable, pGC);

+    }

+    free(pwidthInit);

+}

+

diff --git a/xorg-server/mi/mipolyrect.c b/xorg-server/mi/mipolyrect.c
index 033c7a7c8..8b8810793 100644
--- a/xorg-server/mi/mipolyrect.c
+++ b/xorg-server/mi/mipolyrect.c
@@ -1,187 +1,187 @@
-/***********************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xprotostr.h>
-#include "regionstr.h"
-#include "gcstruct.h"
-#include "pixmap.h"
-#include "mi.h"
-
-void
-miPolyRectangle(DrawablePtr pDraw, GCPtr pGC, int nrects, xRectangle *pRects)
-{
-    int i;
-    xRectangle *pR = pRects;
-    DDXPointRec rect[5];
-    int	    bound_tmp;
-
-#define MINBOUND(dst,eqn)	bound_tmp = eqn; \
-				if (bound_tmp < -32768) \
-				    bound_tmp = -32768; \
-				dst = bound_tmp;
-
-#define MAXBOUND(dst,eqn)	bound_tmp = eqn; \
-				if (bound_tmp > 32767) \
-				    bound_tmp = 32767; \
-				dst = bound_tmp;
-
-#define MAXUBOUND(dst,eqn)	bound_tmp = eqn; \
-				if (bound_tmp > 65535) \
-				    bound_tmp = 65535; \
-				dst = bound_tmp;
-
-    if (pGC->lineStyle == LineSolid && pGC->joinStyle == JoinMiter &&
-	pGC->lineWidth != 0)
-    {
-	xRectangle  *tmp, *t;
-	int	    ntmp;
-	int	    offset1, offset2, offset3;
-	int	    x, y, width, height;
-
-	ntmp = (nrects << 2);
-	offset2 = pGC->lineWidth;
-	offset1 = offset2 >> 1;
-	offset3 = offset2 - offset1;
-	tmp = xalloc(ntmp * sizeof (xRectangle));
-	if (!tmp)
-	    return;
-	t = tmp;
-	for (i = 0; i < nrects; i++)
-	{
-	    x = pR->x;
-	    y = pR->y;
-	    width = pR->width;
-	    height = pR->height;
-	    pR++;
-	    if (width == 0 && height == 0)
-	    {
-		rect[0].x = x;
-		rect[0].y = y;
-		rect[1].x = x;
-		rect[1].y = y;
-		(*pGC->ops->Polylines)(pDraw, pGC, CoordModeOrigin, 2, rect);
-	    }
-	    else if (height < offset2 || width < offset1)
-	    {
-		if (height == 0)
-		{
-		    t->x = x;
-		    t->width = width;
-		}
-		else
-		{
-		    MINBOUND (t->x, x - offset1)
-		    MAXUBOUND (t->width, width + offset2)
-		}
-		if (width == 0)
-		{
-		    t->y = y;
-		    t->height = height;
-		}
-		else
-		{
-		    MINBOUND (t->y, y - offset1)
-		    MAXUBOUND (t->height, height + offset2)
-		}
-		t++;
-	    }
-	    else
-	    {
-		MINBOUND(t->x, x - offset1)
-		MINBOUND(t->y, y - offset1)
-		MAXUBOUND(t->width, width + offset2)
-	    	t->height = offset2;
-	    	t++;
-	    	MINBOUND(t->x, x - offset1)
-	    	MAXBOUND(t->y, y + offset3);
-	    	t->width = offset2;
-	    	t->height = height - offset2;
-	    	t++;
-	    	MAXBOUND(t->x, x + width - offset1);
-	    	MAXBOUND(t->y, y + offset3)
-	    	t->width = offset2;
-	    	t->height = height - offset2;
-	    	t++;
-	    	MINBOUND(t->x, x - offset1)
-	    	MAXBOUND(t->y, y + height - offset1)
-	    	MAXUBOUND(t->width, width + offset2)
-	    	t->height = offset2;
-	    	t++;
-	    }
-	}
-	(*pGC->ops->PolyFillRect) (pDraw, pGC, t - tmp, tmp);
-	xfree ((pointer) tmp);
-    }
-    else
-    {
-
-    	for (i=0; i<nrects; i++)
-    	{
-	    rect[0].x = pR->x;
-	    rect[0].y = pR->y;
-    
-	    MAXBOUND(rect[1].x, pR->x + (int) pR->width)
-	    rect[1].y = rect[0].y;
-    
-	    rect[2].x = rect[1].x;
-	    MAXBOUND(rect[2].y, pR->y + (int) pR->height);
-    
-	    rect[3].x = rect[0].x;
-	    rect[3].y = rect[2].y;
-    
-	    rect[4].x = rect[0].x;
-	    rect[4].y = rect[0].y;
-    
-            (*pGC->ops->Polylines)(pDraw, pGC, CoordModeOrigin, 5, rect);
-	    pR++;
-    	}
-    }
-}
+/***********************************************************

+

+Copyright 1987, 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.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+******************************************************************/

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <X11/X.h>

+#include <X11/Xprotostr.h>

+#include "regionstr.h"

+#include "gcstruct.h"

+#include "pixmap.h"

+#include "mi.h"

+

+void

+miPolyRectangle(DrawablePtr pDraw, GCPtr pGC, int nrects, xRectangle *pRects)

+{

+    int i;

+    xRectangle *pR = pRects;

+    DDXPointRec rect[5];

+    int	    bound_tmp;

+

+#define MINBOUND(dst,eqn)	bound_tmp = eqn; \

+				if (bound_tmp < -32768) \

+				    bound_tmp = -32768; \

+				dst = bound_tmp;

+

+#define MAXBOUND(dst,eqn)	bound_tmp = eqn; \

+				if (bound_tmp > 32767) \

+				    bound_tmp = 32767; \

+				dst = bound_tmp;

+

+#define MAXUBOUND(dst,eqn)	bound_tmp = eqn; \

+				if (bound_tmp > 65535) \

+				    bound_tmp = 65535; \

+				dst = bound_tmp;

+

+    if (pGC->lineStyle == LineSolid && pGC->joinStyle == JoinMiter &&

+	pGC->lineWidth != 0)

+    {

+	xRectangle  *tmp, *t;

+	int	    ntmp;

+	int	    offset1, offset2, offset3;

+	int	    x, y, width, height;

+

+	ntmp = (nrects << 2);

+	offset2 = pGC->lineWidth;

+	offset1 = offset2 >> 1;

+	offset3 = offset2 - offset1;

+	tmp = malloc(ntmp * sizeof (xRectangle));

+	if (!tmp)

+	    return;

+	t = tmp;

+	for (i = 0; i < nrects; i++)

+	{

+	    x = pR->x;

+	    y = pR->y;

+	    width = pR->width;

+	    height = pR->height;

+	    pR++;

+	    if (width == 0 && height == 0)

+	    {

+		rect[0].x = x;

+		rect[0].y = y;

+		rect[1].x = x;

+		rect[1].y = y;

+		(*pGC->ops->Polylines)(pDraw, pGC, CoordModeOrigin, 2, rect);

+	    }

+	    else if (height < offset2 || width < offset1)

+	    {

+		if (height == 0)

+		{

+		    t->x = x;

+		    t->width = width;

+		}

+		else

+		{

+		    MINBOUND (t->x, x - offset1)

+		    MAXUBOUND (t->width, width + offset2)

+		}

+		if (width == 0)

+		{

+		    t->y = y;

+		    t->height = height;

+		}

+		else

+		{

+		    MINBOUND (t->y, y - offset1)

+		    MAXUBOUND (t->height, height + offset2)

+		}

+		t++;

+	    }

+	    else

+	    {

+		MINBOUND(t->x, x - offset1)

+		MINBOUND(t->y, y - offset1)

+		MAXUBOUND(t->width, width + offset2)

+	    	t->height = offset2;

+	    	t++;

+	    	MINBOUND(t->x, x - offset1)

+	    	MAXBOUND(t->y, y + offset3);

+	    	t->width = offset2;

+	    	t->height = height - offset2;

+	    	t++;

+	    	MAXBOUND(t->x, x + width - offset1);

+	    	MAXBOUND(t->y, y + offset3)

+	    	t->width = offset2;

+	    	t->height = height - offset2;

+	    	t++;

+	    	MINBOUND(t->x, x - offset1)

+	    	MAXBOUND(t->y, y + height - offset1)

+	    	MAXUBOUND(t->width, width + offset2)

+	    	t->height = offset2;

+	    	t++;

+	    }

+	}

+	(*pGC->ops->PolyFillRect) (pDraw, pGC, t - tmp, tmp);

+	free((pointer) tmp);

+    }

+    else

+    {

+

+    	for (i=0; i<nrects; i++)

+    	{

+	    rect[0].x = pR->x;

+	    rect[0].y = pR->y;

+    

+	    MAXBOUND(rect[1].x, pR->x + (int) pR->width)

+	    rect[1].y = rect[0].y;

+    

+	    rect[2].x = rect[1].x;

+	    MAXBOUND(rect[2].y, pR->y + (int) pR->height);

+    

+	    rect[3].x = rect[0].x;

+	    rect[3].y = rect[2].y;

+    

+	    rect[4].x = rect[0].x;

+	    rect[4].y = rect[0].y;

+    

+            (*pGC->ops->Polylines)(pDraw, pGC, CoordModeOrigin, 5, rect);

+	    pR++;

+    	}

+    }

+}

diff --git a/xorg-server/mi/mipolyutil.c b/xorg-server/mi/mipolyutil.c
index 15561b73d..fe0d9e5bf 100644
--- a/xorg-server/mi/mipolyutil.c
+++ b/xorg-server/mi/mipolyutil.c
@@ -1,385 +1,385 @@
-/***********************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include "regionstr.h"
-#include "gc.h"
-#include "miscanfill.h"
-#include "mipoly.h"
-#include "misc.h"	/* MAXINT */
-
-/*
- *     fillUtils.c
- *
- *     Written by Brian Kelleher;  Oct. 1985
- *
- *     This module contains all of the utility functions
- *     needed to scan convert a polygon.
- *
- */
-
-/*
- *     InsertEdgeInET
- *
- *     Insert the given edge into the edge table.
- *     First we must find the correct bucket in the
- *     Edge table, then find the right slot in the
- *     bucket.  Finally, we can insert it.
- *
- */
-static Bool
-miInsertEdgeInET(EdgeTable *ET, EdgeTableEntry *ETE,  int scanline,
-		 ScanLineListBlock **SLLBlock, int *iSLLBlock)
-{
-    EdgeTableEntry *start, *prev;
-    ScanLineList *pSLL, *pPrevSLL;
-    ScanLineListBlock *tmpSLLBlock;
-
-    /*
-     * find the right bucket to put the edge into
-     */
-    pPrevSLL = &ET->scanlines;
-    pSLL = pPrevSLL->next;
-    while (pSLL && (pSLL->scanline < scanline)) 
-    {
-        pPrevSLL = pSLL;
-        pSLL = pSLL->next;
-    }
-
-    /*
-     * reassign pSLL (pointer to ScanLineList) if necessary
-     */
-    if ((!pSLL) || (pSLL->scanline > scanline)) 
-    {
-        if (*iSLLBlock > SLLSPERBLOCK-1) 
-        {
-            tmpSLLBlock = xalloc(sizeof(ScanLineListBlock));
-	    if (!tmpSLLBlock)
-		return FALSE;
-            (*SLLBlock)->next = tmpSLLBlock;
-            tmpSLLBlock->next = NULL;
-            *SLLBlock = tmpSLLBlock;
-            *iSLLBlock = 0;
-        }
-        pSLL = &((*SLLBlock)->SLLs[(*iSLLBlock)++]);
-
-        pSLL->next = pPrevSLL->next;
-        pSLL->edgelist = NULL;
-        pPrevSLL->next = pSLL;
-    }
-    pSLL->scanline = scanline;
-
-    /*
-     * now insert the edge in the right bucket
-     */
-    prev = NULL;
-    start = pSLL->edgelist;
-    while (start && (start->bres.minor < ETE->bres.minor)) 
-    {
-        prev = start;
-        start = start->next;
-    }
-    ETE->next = start;
-
-    if (prev)
-        prev->next = ETE;
-    else
-        pSLL->edgelist = ETE;
-    return TRUE;
-}
-
-/*
- *     CreateEdgeTable
- *
- *     This routine creates the edge table for
- *     scan converting polygons. 
- *     The Edge Table (ET) looks like:
- *
- *    EdgeTable
- *     --------
- *    |  ymax  |        ScanLineLists
- *    |scanline|-->------------>-------------->...
- *     --------   |scanline|   |scanline|
- *                |edgelist|   |edgelist|
- *                ---------    ---------
- *                    |             |
- *                    |             |
- *                    V             V
- *              list of ETEs   list of ETEs
- *
- *     where ETE is an EdgeTableEntry data structure,
- *     and there is one ScanLineList per scanline at
- *     which an edge is initially entered.
- *
- */
-
-Bool
-miCreateETandAET(int count, DDXPointPtr pts, EdgeTable *ET, EdgeTableEntry *AET,
-                 EdgeTableEntry *pETEs, ScanLineListBlock *pSLLBlock)
-{
-    DDXPointPtr top, bottom;
-    DDXPointPtr PrevPt, CurrPt;
-    int iSLLBlock = 0;
-
-    int dy;
-
-    if (count < 2)  return TRUE;
-
-    /*
-     *  initialize the Active Edge Table
-     */
-    AET->next = NULL;
-    AET->back = NULL;
-    AET->nextWETE = NULL;
-    AET->bres.minor = MININT;
-
-    /*
-     *  initialize the Edge Table.
-     */
-    ET->scanlines.next = NULL;
-    ET->ymax = MININT;
-    ET->ymin = MAXINT;
-    pSLLBlock->next = NULL;
-
-    PrevPt = &pts[count-1];
-
-    /*
-     *  for each vertex in the array of points.
-     *  In this loop we are dealing with two vertices at
-     *  a time -- these make up one edge of the polygon.
-     */
-    while (count--) 
-    {
-        CurrPt = pts++;
-
-        /*
-         *  find out which point is above and which is below.
-         */
-        if (PrevPt->y > CurrPt->y) 
-        {
-            bottom = PrevPt, top = CurrPt;
-            pETEs->ClockWise = 0;
-        }
-        else 
-        {
-            bottom = CurrPt, top = PrevPt;
-            pETEs->ClockWise = 1;
-        }
-
-        /*
-         * don't add horizontal edges to the Edge table.
-         */
-        if (bottom->y != top->y) 
-        {
-            pETEs->ymax = bottom->y-1;  /* -1 so we don't get last scanline */
-
-            /*
-             *  initialize integer edge algorithm
-             */
-            dy = bottom->y - top->y;
-            BRESINITPGONSTRUCT(dy, top->x, bottom->x, pETEs->bres);
-
-            if (!miInsertEdgeInET(ET, pETEs, top->y, &pSLLBlock, &iSLLBlock))
-	    {
-		miFreeStorage(pSLLBlock->next);
-		return FALSE;
-	    }
-
-            ET->ymax = max(ET->ymax, PrevPt->y);
-            ET->ymin = min(ET->ymin, PrevPt->y);
-            pETEs++;
-        }
-
-        PrevPt = CurrPt;
-    }
-    return TRUE;
-}
-
-/*
- *     loadAET
- *
- *     This routine moves EdgeTableEntries from the
- *     EdgeTable into the Active Edge Table,
- *     leaving them sorted by smaller x coordinate.
- *
- */
-
-void
-miloadAET(EdgeTableEntry *AET, EdgeTableEntry *ETEs)
-{
-    EdgeTableEntry *pPrevAET;
-    EdgeTableEntry *tmp;
-
-    pPrevAET = AET;
-    AET = AET->next;
-    while (ETEs) 
-    {
-        while (AET && (AET->bres.minor < ETEs->bres.minor)) 
-        {
-            pPrevAET = AET;
-            AET = AET->next;
-        }
-        tmp = ETEs->next;
-        ETEs->next = AET;
-        if (AET)
-            AET->back = ETEs;
-        ETEs->back = pPrevAET;
-        pPrevAET->next = ETEs;
-        pPrevAET = ETEs;
-
-        ETEs = tmp;
-    }
-}
-
-/*
- *     computeWAET
- *
- *     This routine links the AET by the
- *     nextWETE (winding EdgeTableEntry) link for
- *     use by the winding number rule.  The final 
- *     Active Edge Table (AET) might look something
- *     like:
- *
- *     AET
- *     ----------  ---------   ---------
- *     |ymax    |  |ymax    |  |ymax    | 
- *     | ...    |  |...     |  |...     |
- *     |next    |->|next    |->|next    |->...
- *     |nextWETE|  |nextWETE|  |nextWETE|
- *     ---------   ---------   ^--------
- *         |                   |       |
- *         V------------------->       V---> ...
- *
- */
-void
-micomputeWAET(EdgeTableEntry *AET)
-{
-    EdgeTableEntry *pWETE;
-    int inside = 1;
-    int isInside = 0;
-
-    AET->nextWETE = NULL;
-    pWETE = AET;
-    AET = AET->next;
-    while (AET) 
-    {
-        if (AET->ClockWise)
-            isInside++;
-        else
-            isInside--;
-
-        if ((!inside && !isInside) ||
-            ( inside &&  isInside)) 
-        {
-            pWETE->nextWETE = AET;
-            pWETE = AET;
-            inside = !inside;
-        }
-        AET = AET->next;
-    }
-    pWETE->nextWETE = NULL;
-}
-
-/*
- *     InsertionSort
- *
- *     Just a simple insertion sort using
- *     pointers and back pointers to sort the Active
- *     Edge Table.
- *
- */
-
-int
-miInsertionSort(EdgeTableEntry *AET)
-{
-    EdgeTableEntry *pETEchase;
-    EdgeTableEntry *pETEinsert;
-    EdgeTableEntry *pETEchaseBackTMP;
-    int changed = 0;
-
-    AET = AET->next;
-    while (AET) 
-    {
-        pETEinsert = AET;
-        pETEchase = AET;
-        while (pETEchase->back->bres.minor > AET->bres.minor)
-            pETEchase = pETEchase->back;
-
-        AET = AET->next;
-        if (pETEchase != pETEinsert) 
-        {
-            pETEchaseBackTMP = pETEchase->back;
-            pETEinsert->back->next = AET;
-            if (AET)
-                AET->back = pETEinsert->back;
-            pETEinsert->next = pETEchase;
-            pETEchase->back->next = pETEinsert;
-            pETEchase->back = pETEinsert;
-            pETEinsert->back = pETEchaseBackTMP;
-            changed = 1;
-        }
-    }
-    return(changed);
-}
-
-/*
- *     Clean up our act.
- */
-void
-miFreeStorage(ScanLineListBlock *pSLLBlock)
-{
-    ScanLineListBlock   *tmpSLLBlock;
-
-    while (pSLLBlock) 
-    {
-        tmpSLLBlock = pSLLBlock->next;
-        xfree(pSLLBlock);
-        pSLLBlock = tmpSLLBlock;
-    }
-}
+/***********************************************************

+

+Copyright 1987, 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.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+******************************************************************/

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include "regionstr.h"

+#include "gc.h"

+#include "miscanfill.h"

+#include "mipoly.h"

+#include "misc.h"	/* MAXINT */

+

+/*

+ *     fillUtils.c

+ *

+ *     Written by Brian Kelleher;  Oct. 1985

+ *

+ *     This module contains all of the utility functions

+ *     needed to scan convert a polygon.

+ *

+ */

+

+/*

+ *     InsertEdgeInET

+ *

+ *     Insert the given edge into the edge table.

+ *     First we must find the correct bucket in the

+ *     Edge table, then find the right slot in the

+ *     bucket.  Finally, we can insert it.

+ *

+ */

+static Bool

+miInsertEdgeInET(EdgeTable *ET, EdgeTableEntry *ETE,  int scanline,

+		 ScanLineListBlock **SLLBlock, int *iSLLBlock)

+{

+    EdgeTableEntry *start, *prev;

+    ScanLineList *pSLL, *pPrevSLL;

+    ScanLineListBlock *tmpSLLBlock;

+

+    /*

+     * find the right bucket to put the edge into

+     */

+    pPrevSLL = &ET->scanlines;

+    pSLL = pPrevSLL->next;

+    while (pSLL && (pSLL->scanline < scanline)) 

+    {

+        pPrevSLL = pSLL;

+        pSLL = pSLL->next;

+    }

+

+    /*

+     * reassign pSLL (pointer to ScanLineList) if necessary

+     */

+    if ((!pSLL) || (pSLL->scanline > scanline)) 

+    {

+        if (*iSLLBlock > SLLSPERBLOCK-1) 

+        {

+            tmpSLLBlock = malloc(sizeof(ScanLineListBlock));

+	    if (!tmpSLLBlock)

+		return FALSE;

+            (*SLLBlock)->next = tmpSLLBlock;

+            tmpSLLBlock->next = NULL;

+            *SLLBlock = tmpSLLBlock;

+            *iSLLBlock = 0;

+        }

+        pSLL = &((*SLLBlock)->SLLs[(*iSLLBlock)++]);

+

+        pSLL->next = pPrevSLL->next;

+        pSLL->edgelist = NULL;

+        pPrevSLL->next = pSLL;

+    }

+    pSLL->scanline = scanline;

+

+    /*

+     * now insert the edge in the right bucket

+     */

+    prev = NULL;

+    start = pSLL->edgelist;

+    while (start && (start->bres.minor < ETE->bres.minor)) 

+    {

+        prev = start;

+        start = start->next;

+    }

+    ETE->next = start;

+

+    if (prev)

+        prev->next = ETE;

+    else

+        pSLL->edgelist = ETE;

+    return TRUE;

+}

+

+/*

+ *     CreateEdgeTable

+ *

+ *     This routine creates the edge table for

+ *     scan converting polygons. 

+ *     The Edge Table (ET) looks like:

+ *

+ *    EdgeTable

+ *     --------

+ *    |  ymax  |        ScanLineLists

+ *    |scanline|-->------------>-------------->...

+ *     --------   |scanline|   |scanline|

+ *                |edgelist|   |edgelist|

+ *                ---------    ---------

+ *                    |             |

+ *                    |             |

+ *                    V             V

+ *              list of ETEs   list of ETEs

+ *

+ *     where ETE is an EdgeTableEntry data structure,

+ *     and there is one ScanLineList per scanline at

+ *     which an edge is initially entered.

+ *

+ */

+

+Bool

+miCreateETandAET(int count, DDXPointPtr pts, EdgeTable *ET, EdgeTableEntry *AET,

+                 EdgeTableEntry *pETEs, ScanLineListBlock *pSLLBlock)

+{

+    DDXPointPtr top, bottom;

+    DDXPointPtr PrevPt, CurrPt;

+    int iSLLBlock = 0;

+

+    int dy;

+

+    if (count < 2)  return TRUE;

+

+    /*

+     *  initialize the Active Edge Table

+     */

+    AET->next = NULL;

+    AET->back = NULL;

+    AET->nextWETE = NULL;

+    AET->bres.minor = MININT;

+

+    /*

+     *  initialize the Edge Table.

+     */

+    ET->scanlines.next = NULL;

+    ET->ymax = MININT;

+    ET->ymin = MAXINT;

+    pSLLBlock->next = NULL;

+

+    PrevPt = &pts[count-1];

+

+    /*

+     *  for each vertex in the array of points.

+     *  In this loop we are dealing with two vertices at

+     *  a time -- these make up one edge of the polygon.

+     */

+    while (count--) 

+    {

+        CurrPt = pts++;

+

+        /*

+         *  find out which point is above and which is below.

+         */

+        if (PrevPt->y > CurrPt->y) 

+        {

+            bottom = PrevPt, top = CurrPt;

+            pETEs->ClockWise = 0;

+        }

+        else 

+        {

+            bottom = CurrPt, top = PrevPt;

+            pETEs->ClockWise = 1;

+        }

+

+        /*

+         * don't add horizontal edges to the Edge table.

+         */

+        if (bottom->y != top->y) 

+        {

+            pETEs->ymax = bottom->y-1;  /* -1 so we don't get last scanline */

+

+            /*

+             *  initialize integer edge algorithm

+             */

+            dy = bottom->y - top->y;

+            BRESINITPGONSTRUCT(dy, top->x, bottom->x, pETEs->bres);

+

+            if (!miInsertEdgeInET(ET, pETEs, top->y, &pSLLBlock, &iSLLBlock))

+	    {

+		miFreeStorage(pSLLBlock->next);

+		return FALSE;

+	    }

+

+            ET->ymax = max(ET->ymax, PrevPt->y);

+            ET->ymin = min(ET->ymin, PrevPt->y);

+            pETEs++;

+        }

+

+        PrevPt = CurrPt;

+    }

+    return TRUE;

+}

+

+/*

+ *     loadAET

+ *

+ *     This routine moves EdgeTableEntries from the

+ *     EdgeTable into the Active Edge Table,

+ *     leaving them sorted by smaller x coordinate.

+ *

+ */

+

+void

+miloadAET(EdgeTableEntry *AET, EdgeTableEntry *ETEs)

+{

+    EdgeTableEntry *pPrevAET;

+    EdgeTableEntry *tmp;

+

+    pPrevAET = AET;

+    AET = AET->next;

+    while (ETEs) 

+    {

+        while (AET && (AET->bres.minor < ETEs->bres.minor)) 

+        {

+            pPrevAET = AET;

+            AET = AET->next;

+        }

+        tmp = ETEs->next;

+        ETEs->next = AET;

+        if (AET)

+            AET->back = ETEs;

+        ETEs->back = pPrevAET;

+        pPrevAET->next = ETEs;

+        pPrevAET = ETEs;

+

+        ETEs = tmp;

+    }

+}

+

+/*

+ *     computeWAET

+ *

+ *     This routine links the AET by the

+ *     nextWETE (winding EdgeTableEntry) link for

+ *     use by the winding number rule.  The final 

+ *     Active Edge Table (AET) might look something

+ *     like:

+ *

+ *     AET

+ *     ----------  ---------   ---------

+ *     |ymax    |  |ymax    |  |ymax    | 

+ *     | ...    |  |...     |  |...     |

+ *     |next    |->|next    |->|next    |->...

+ *     |nextWETE|  |nextWETE|  |nextWETE|

+ *     ---------   ---------   ^--------

+ *         |                   |       |

+ *         V------------------->       V---> ...

+ *

+ */

+void

+micomputeWAET(EdgeTableEntry *AET)

+{

+    EdgeTableEntry *pWETE;

+    int inside = 1;

+    int isInside = 0;

+

+    AET->nextWETE = NULL;

+    pWETE = AET;

+    AET = AET->next;

+    while (AET) 

+    {

+        if (AET->ClockWise)

+            isInside++;

+        else

+            isInside--;

+

+        if ((!inside && !isInside) ||

+            ( inside &&  isInside)) 

+        {

+            pWETE->nextWETE = AET;

+            pWETE = AET;

+            inside = !inside;

+        }

+        AET = AET->next;

+    }

+    pWETE->nextWETE = NULL;

+}

+

+/*

+ *     InsertionSort

+ *

+ *     Just a simple insertion sort using

+ *     pointers and back pointers to sort the Active

+ *     Edge Table.

+ *

+ */

+

+int

+miInsertionSort(EdgeTableEntry *AET)

+{

+    EdgeTableEntry *pETEchase;

+    EdgeTableEntry *pETEinsert;

+    EdgeTableEntry *pETEchaseBackTMP;

+    int changed = 0;

+

+    AET = AET->next;

+    while (AET) 

+    {

+        pETEinsert = AET;

+        pETEchase = AET;

+        while (pETEchase->back->bres.minor > AET->bres.minor)

+            pETEchase = pETEchase->back;

+

+        AET = AET->next;

+        if (pETEchase != pETEinsert) 

+        {

+            pETEchaseBackTMP = pETEchase->back;

+            pETEinsert->back->next = AET;

+            if (AET)

+                AET->back = pETEinsert->back;

+            pETEinsert->next = pETEchase;

+            pETEchase->back->next = pETEinsert;

+            pETEchase->back = pETEinsert;

+            pETEinsert->back = pETEchaseBackTMP;

+            changed = 1;

+        }

+    }

+    return(changed);

+}

+

+/*

+ *     Clean up our act.

+ */

+void

+miFreeStorage(ScanLineListBlock *pSLLBlock)

+{

+    ScanLineListBlock   *tmpSLLBlock;

+

+    while (pSLLBlock) 

+    {

+        tmpSLLBlock = pSLLBlock->next;

+        free(pSLLBlock);

+        pSLLBlock = tmpSLLBlock;

+    }

+}

diff --git a/xorg-server/mi/mipushpxl.c b/xorg-server/mi/mipushpxl.c
index 3844519d8..9c3d9b342 100644
--- a/xorg-server/mi/mipushpxl.c
+++ b/xorg-server/mi/mipushpxl.c
@@ -1,271 +1,271 @@
-/***********************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include "gcstruct.h"
-#include "scrnintstr.h"
-#include "pixmapstr.h"
-#include "regionstr.h"
-#include "mi.h"
-#include "servermd.h"
-
-#define NPT 128
-
-/* These were stolen from mfb.  They don't really belong here. */
-#define LONG2CHARSSAMEORDER(x) ((MiBits)(x))
-#define LONG2CHARSDIFFORDER( x ) ( ( ( ( x ) & (MiBits)0x000000FF ) << 0x18 ) \
-                        | ( ( ( x ) & (MiBits)0x0000FF00 ) << 0x08 ) \
-                        | ( ( ( x ) & (MiBits)0x00FF0000 ) >> 0x08 ) \
-                        | ( ( ( x ) & (MiBits)0xFF000000 ) >> 0x18 ) )
-
-
-#define PGSZB	4
-#define PPW	(PGSZB<<3) /* assuming 8 bits per byte */
-#define PGSZ	PPW
-#define PLST	(PPW-1)
-#define PIM	PLST
-#define PWSH	5
-
-/* miPushPixels -- squeegees the fill style of pGC through pBitMap
- * into pDrawable.  pBitMap is a stencil (dx by dy of it is used, it may
- * be bigger) which is placed on the drawable at xOrg, yOrg.  Where a 1 bit
- * is set in the bitmap, the fill style is put onto the drawable using
- * the GC's logical function. The drawable is not changed where the bitmap
- * has a zero bit or outside the area covered by the stencil.
-
-WARNING:
-    this code works if the 1-bit deep pixmap format returned by GetSpans
-is the same as the format defined by the mfb code (i.e. 32-bit padding
-per scanline, scanline unit = 32 bits; later, this might mean
-bitsizeof(int) padding and sacnline unit == bitsizeof(int).)
-
- */
-
-/*
- * in order to have both (MSB_FIRST and LSB_FIRST) versions of this
- * in the server, we need to rename one of them
- */
-void
-miPushPixels(GCPtr pGC, PixmapPtr pBitMap, DrawablePtr pDrawable,
-             int dx, int dy, int xOrg, int yOrg)
-{
-    int		h, dxDivPPW, ibEnd;
-    MiBits 	*pwLineStart;
-    MiBits	*pw, *pwEnd;
-    MiBits 	msk;
-    int 	ib, w;
-    int 	ipt;		/* index into above arrays */
-    Bool 	fInBox;
-    DDXPointRec	pt[NPT], ptThisLine;
-    int		width[NPT];
-#if 1
-    MiBits	startmask;
-    if (screenInfo.bitmapBitOrder == IMAGE_BYTE_ORDER)
-      if (screenInfo.bitmapBitOrder == LSBFirst)
-        startmask = (MiBits)(-1) ^
-            LONG2CHARSSAMEORDER((MiBits)(-1) << 1);
-      else
-        startmask = (MiBits)(-1) ^
-            LONG2CHARSSAMEORDER((MiBits)(-1) >> 1);
-    else
-      if (screenInfo.bitmapBitOrder == LSBFirst)
-        startmask = (MiBits)(-1) ^
-            LONG2CHARSDIFFORDER((MiBits)(-1) << 1);
-      else
-        startmask = (MiBits)(-1) ^
-            LONG2CHARSDIFFORDER((MiBits)(-1) >> 1);
-#endif
-
-    pwLineStart = xalloc(BitmapBytePad(dx));
-    if (!pwLineStart)
-	return;
-    ipt = 0;
-    dxDivPPW = dx/PPW;
-
-    for(h = 0, ptThisLine.x = 0, ptThisLine.y = 0; 
-	h < dy; 
-	h++, ptThisLine.y++)
-    {
-
-	(*pBitMap->drawable.pScreen->GetSpans)((DrawablePtr)pBitMap, dx,
-			&ptThisLine, &dx, 1, (char *)pwLineStart);
-
-	pw = pwLineStart;
-	/* Process all words which are fully in the pixmap */
-	
-	fInBox = FALSE;
-	pwEnd = pwLineStart + dxDivPPW;
-	while(pw  < pwEnd)
-	{
-	    w = *pw;
-#if 1
-	    msk = startmask;
-#else
-	    msk = (MiBits)(-1) ^ SCRRIGHT((MiBits)(-1), 1);
-#endif
-	    for(ib = 0; ib < PPW; ib++)
-	    {
-		if(w & msk)
-		{
-		    if(!fInBox)
-		    {
-			pt[ipt].x = ((pw - pwLineStart) << PWSH) + ib + xOrg;
-			pt[ipt].y = h + yOrg;
-			/* start new box */
-			fInBox = TRUE;
-		    }
-		}
-		else
-		{
-		    if(fInBox)
-		    {
-			width[ipt] = ((pw - pwLineStart) << PWSH) + 
-				     ib + xOrg - pt[ipt].x;
-			if (++ipt >= NPT)
-			{
-			    (*pGC->ops->FillSpans)(pDrawable, pGC, 
-					      NPT, pt, width, TRUE);
-			    ipt = 0;
-			}
-			/* end box */
-			fInBox = FALSE;
-		    }
-		}
-#if 1
-    		/* This is not quite right, but it'll do for now */
-		if (screenInfo.bitmapBitOrder == IMAGE_BYTE_ORDER)
-		  if (screenInfo.bitmapBitOrder == LSBFirst)
-		    msk = LONG2CHARSSAMEORDER(LONG2CHARSSAMEORDER(msk) << 1);
-		  else
-		    msk = LONG2CHARSSAMEORDER(LONG2CHARSSAMEORDER(msk) >> 1);
-		else
-		  if (screenInfo.bitmapBitOrder == LSBFirst)
-		    msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) << 1);
-		  else
-		    msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) >> 1);
-#else
-		msk = SCRRIGHT(msk, 1);
-#endif
-	    }
-	    pw++;
-	}
-	ibEnd = dx & PIM;
-	if(ibEnd)
-	{
-	    /* Process final partial word on line */
-	    w = *pw;
-#if 1
-	    msk = startmask;
-#else
-	    msk = (MiBits)(-1) ^ SCRRIGHT((MiBits)(-1), 1);
-#endif
-	    for(ib = 0; ib < ibEnd; ib++)
-	    {
-		if(w & msk)
-		{
-		    if(!fInBox)
-		    {
-			/* start new box */
-			pt[ipt].x = ((pw - pwLineStart) << PWSH) + ib + xOrg;
-			pt[ipt].y = h + yOrg;
-			fInBox = TRUE;
-		    }
-		}
-		else
-		{
-		    if(fInBox)
-		    {
-			/* end box */
-			width[ipt] = ((pw - pwLineStart) << PWSH) + 
-				     ib + xOrg - pt[ipt].x;
-			if (++ipt >= NPT)
-			{
-			    (*pGC->ops->FillSpans)(pDrawable, 
-					      pGC, NPT, pt, width, TRUE);
-			    ipt = 0;
-			}
-			fInBox = FALSE;
-		    }
-		}
-#if 1
-    		/* This is not quite right, but it'll do for now */
-		if (screenInfo.bitmapBitOrder == IMAGE_BYTE_ORDER)
-		  if (screenInfo.bitmapBitOrder == LSBFirst)
-		    msk = LONG2CHARSSAMEORDER(LONG2CHARSSAMEORDER(msk) << 1);
-		  else
-		    msk = LONG2CHARSSAMEORDER(LONG2CHARSSAMEORDER(msk) >> 1);
-		else
-		  if (screenInfo.bitmapBitOrder == LSBFirst)
-		    msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) << 1);
-		  else
-		    msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) >> 1);
-#else
-		msk = SCRRIGHT(msk, 1);
-#endif
-	    }
-	}
-	/* If scanline ended with last bit set, end the box */
-	if(fInBox)
-	{
-	    width[ipt] = dx + xOrg - pt[ipt].x;
-	    if (++ipt >= NPT)
-	    {
-		(*pGC->ops->FillSpans)(pDrawable, pGC, NPT, pt, width, TRUE);
-		ipt = 0;
-	    }
-	}
-    }
-    xfree(pwLineStart);
-    /* Flush any remaining spans */
-    if (ipt)
-    {
-	(*pGC->ops->FillSpans)(pDrawable, pGC, ipt, pt, width, TRUE);
-    }
-}
+/***********************************************************

+

+Copyright 1987, 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.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+******************************************************************/

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <X11/X.h>

+#include "gcstruct.h"

+#include "scrnintstr.h"

+#include "pixmapstr.h"

+#include "regionstr.h"

+#include "mi.h"

+#include "servermd.h"

+

+#define NPT 128

+

+/* These were stolen from mfb.  They don't really belong here. */

+#define LONG2CHARSSAMEORDER(x) ((MiBits)(x))

+#define LONG2CHARSDIFFORDER( x ) ( ( ( ( x ) & (MiBits)0x000000FF ) << 0x18 ) \

+                        | ( ( ( x ) & (MiBits)0x0000FF00 ) << 0x08 ) \

+                        | ( ( ( x ) & (MiBits)0x00FF0000 ) >> 0x08 ) \

+                        | ( ( ( x ) & (MiBits)0xFF000000 ) >> 0x18 ) )

+

+

+#define PGSZB	4

+#define PPW	(PGSZB<<3) /* assuming 8 bits per byte */

+#define PGSZ	PPW

+#define PLST	(PPW-1)

+#define PIM	PLST

+#define PWSH	5

+

+/* miPushPixels -- squeegees the fill style of pGC through pBitMap

+ * into pDrawable.  pBitMap is a stencil (dx by dy of it is used, it may

+ * be bigger) which is placed on the drawable at xOrg, yOrg.  Where a 1 bit

+ * is set in the bitmap, the fill style is put onto the drawable using

+ * the GC's logical function. The drawable is not changed where the bitmap

+ * has a zero bit or outside the area covered by the stencil.

+

+WARNING:

+    this code works if the 1-bit deep pixmap format returned by GetSpans

+is the same as the format defined by the mfb code (i.e. 32-bit padding

+per scanline, scanline unit = 32 bits; later, this might mean

+bitsizeof(int) padding and sacnline unit == bitsizeof(int).)

+

+ */

+

+/*

+ * in order to have both (MSB_FIRST and LSB_FIRST) versions of this

+ * in the server, we need to rename one of them

+ */

+void

+miPushPixels(GCPtr pGC, PixmapPtr pBitMap, DrawablePtr pDrawable,

+             int dx, int dy, int xOrg, int yOrg)

+{

+    int		h, dxDivPPW, ibEnd;

+    MiBits 	*pwLineStart;

+    MiBits	*pw, *pwEnd;

+    MiBits 	msk;

+    int 	ib, w;

+    int 	ipt;		/* index into above arrays */

+    Bool 	fInBox;

+    DDXPointRec	pt[NPT], ptThisLine;

+    int		width[NPT];

+#if 1

+    MiBits	startmask;

+    if (screenInfo.bitmapBitOrder == IMAGE_BYTE_ORDER)

+      if (screenInfo.bitmapBitOrder == LSBFirst)

+        startmask = (MiBits)(-1) ^

+            LONG2CHARSSAMEORDER((MiBits)(-1) << 1);

+      else

+        startmask = (MiBits)(-1) ^

+            LONG2CHARSSAMEORDER((MiBits)(-1) >> 1);

+    else

+      if (screenInfo.bitmapBitOrder == LSBFirst)

+        startmask = (MiBits)(-1) ^

+            LONG2CHARSDIFFORDER((MiBits)(-1) << 1);

+      else

+        startmask = (MiBits)(-1) ^

+            LONG2CHARSDIFFORDER((MiBits)(-1) >> 1);

+#endif

+

+    pwLineStart = malloc(BitmapBytePad(dx));

+    if (!pwLineStart)

+	return;

+    ipt = 0;

+    dxDivPPW = dx/PPW;

+

+    for(h = 0, ptThisLine.x = 0, ptThisLine.y = 0; 

+	h < dy; 

+	h++, ptThisLine.y++)

+    {

+

+	(*pBitMap->drawable.pScreen->GetSpans)((DrawablePtr)pBitMap, dx,

+			&ptThisLine, &dx, 1, (char *)pwLineStart);

+

+	pw = pwLineStart;

+	/* Process all words which are fully in the pixmap */

+	

+	fInBox = FALSE;

+	pwEnd = pwLineStart + dxDivPPW;

+	while(pw  < pwEnd)

+	{

+	    w = *pw;

+#if 1

+	    msk = startmask;

+#else

+	    msk = (MiBits)(-1) ^ SCRRIGHT((MiBits)(-1), 1);

+#endif

+	    for(ib = 0; ib < PPW; ib++)

+	    {

+		if(w & msk)

+		{

+		    if(!fInBox)

+		    {

+			pt[ipt].x = ((pw - pwLineStart) << PWSH) + ib + xOrg;

+			pt[ipt].y = h + yOrg;

+			/* start new box */

+			fInBox = TRUE;

+		    }

+		}

+		else

+		{

+		    if(fInBox)

+		    {

+			width[ipt] = ((pw - pwLineStart) << PWSH) + 

+				     ib + xOrg - pt[ipt].x;

+			if (++ipt >= NPT)

+			{

+			    (*pGC->ops->FillSpans)(pDrawable, pGC, 

+					      NPT, pt, width, TRUE);

+			    ipt = 0;

+			}

+			/* end box */

+			fInBox = FALSE;

+		    }

+		}

+#if 1

+    		/* This is not quite right, but it'll do for now */

+		if (screenInfo.bitmapBitOrder == IMAGE_BYTE_ORDER)

+		  if (screenInfo.bitmapBitOrder == LSBFirst)

+		    msk = LONG2CHARSSAMEORDER(LONG2CHARSSAMEORDER(msk) << 1);

+		  else

+		    msk = LONG2CHARSSAMEORDER(LONG2CHARSSAMEORDER(msk) >> 1);

+		else

+		  if (screenInfo.bitmapBitOrder == LSBFirst)

+		    msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) << 1);

+		  else

+		    msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) >> 1);

+#else

+		msk = SCRRIGHT(msk, 1);

+#endif

+	    }

+	    pw++;

+	}

+	ibEnd = dx & PIM;

+	if(ibEnd)

+	{

+	    /* Process final partial word on line */

+	    w = *pw;

+#if 1

+	    msk = startmask;

+#else

+	    msk = (MiBits)(-1) ^ SCRRIGHT((MiBits)(-1), 1);

+#endif

+	    for(ib = 0; ib < ibEnd; ib++)

+	    {

+		if(w & msk)

+		{

+		    if(!fInBox)

+		    {

+			/* start new box */

+			pt[ipt].x = ((pw - pwLineStart) << PWSH) + ib + xOrg;

+			pt[ipt].y = h + yOrg;

+			fInBox = TRUE;

+		    }

+		}

+		else

+		{

+		    if(fInBox)

+		    {

+			/* end box */

+			width[ipt] = ((pw - pwLineStart) << PWSH) + 

+				     ib + xOrg - pt[ipt].x;

+			if (++ipt >= NPT)

+			{

+			    (*pGC->ops->FillSpans)(pDrawable, 

+					      pGC, NPT, pt, width, TRUE);

+			    ipt = 0;

+			}

+			fInBox = FALSE;

+		    }

+		}

+#if 1

+    		/* This is not quite right, but it'll do for now */

+		if (screenInfo.bitmapBitOrder == IMAGE_BYTE_ORDER)

+		  if (screenInfo.bitmapBitOrder == LSBFirst)

+		    msk = LONG2CHARSSAMEORDER(LONG2CHARSSAMEORDER(msk) << 1);

+		  else

+		    msk = LONG2CHARSSAMEORDER(LONG2CHARSSAMEORDER(msk) >> 1);

+		else

+		  if (screenInfo.bitmapBitOrder == LSBFirst)

+		    msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) << 1);

+		  else

+		    msk = LONG2CHARSDIFFORDER(LONG2CHARSDIFFORDER(msk) >> 1);

+#else

+		msk = SCRRIGHT(msk, 1);

+#endif

+	    }

+	}

+	/* If scanline ended with last bit set, end the box */

+	if(fInBox)

+	{

+	    width[ipt] = dx + xOrg - pt[ipt].x;

+	    if (++ipt >= NPT)

+	    {

+		(*pGC->ops->FillSpans)(pDrawable, pGC, NPT, pt, width, TRUE);

+		ipt = 0;

+	    }

+	}

+    }

+    free(pwLineStart);

+    /* Flush any remaining spans */

+    if (ipt)

+    {

+	(*pGC->ops->FillSpans)(pDrawable, pGC, ipt, pt, width, TRUE);

+    }

+}

diff --git a/xorg-server/mi/miregion.c b/xorg-server/mi/miregion.c
index c48befc6f..ff58c0372 100644
--- a/xorg-server/mi/miregion.c
+++ b/xorg-server/mi/miregion.c
@@ -1,1845 +1,1845 @@
-/***********************************************************
-
-Copyright 1987, 1988, 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.
- 
-
-Copyright 1987, 1988, 1989 by 
-Digital Equipment Corporation, Maynard, Massachusetts. 
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-
-/* The panoramix components contained the following notice */
-/*****************************************************************
-
-Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software.
-
-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
-DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
-BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 Digital Equipment Corporation
-shall not be used in advertising or otherwise to promote the sale, use or other
-dealings in this Software without prior written authorization from Digital
-Equipment Corporation.
-
-******************************************************************/
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include "regionstr.h"
-#include <X11/Xprotostr.h>
-#include <X11/Xfuncproto.h>
-#include "gc.h"
-#include "mi.h"
-#include "mispans.h"
-#include <pixman.h>
-
-#undef assert
-#ifdef REGION_DEBUG
-#define assert(expr) { \
-            CARD32 *foo = NULL; \
-            if (!(expr)) { \
-                ErrorF("Assertion failed file %s, line %d: %s\n", \
-                       __FILE__, __LINE__, #expr); \
-                *foo = 0xdeadbeef; /* to get a backtrace */ \
-            } \
-        }
-#else
-#define assert(expr)
-#endif
-
-#define good(reg) assert(miValidRegion(reg))
-
-/*
- * The functions in this file implement the Region abstraction used extensively
- * throughout the X11 sample server. A Region is simply a set of disjoint
- * (non-overlapping) rectangles, plus an "extent" rectangle which is the
- * smallest single rectangle that contains all the non-overlapping rectangles.
- *
- * A Region is implemented as a "y-x-banded" array of rectangles.  This array
- * imposes two degrees of order.  First, all rectangles are sorted by top side
- * y coordinate first (y1), and then by left side x coordinate (x1).
- *
- * Furthermore, the rectangles are grouped into "bands".  Each rectangle in a
- * band has the same top y coordinate (y1), and each has the same bottom y
- * coordinate (y2).  Thus all rectangles in a band differ only in their left
- * and right side (x1 and x2).  Bands are implicit in the array of rectangles:
- * there is no separate list of band start pointers.
- *
- * The y-x band representation does not minimize rectangles.  In particular,
- * if a rectangle vertically crosses a band (the rectangle has scanlines in 
- * the y1 to y2 area spanned by the band), then the rectangle may be broken
- * down into two or more smaller rectangles stacked one atop the other. 
- *
- *  -----------				    -----------
- *  |         |				    |         |		    band 0
- *  |         |  --------		    -----------  --------
- *  |         |  |      |  in y-x banded    |         |  |      |   band 1
- *  |         |  |      |  form is	    |         |  |      |
- *  -----------  |      |		    -----------  --------
- *               |      |				 |      |   band 2
- *               --------				 --------
- *
- * An added constraint on the rectangles is that they must cover as much
- * horizontal area as possible: no two rectangles within a band are allowed
- * to touch.
- *
- * Whenever possible, bands will be merged together to cover a greater vertical
- * distance (and thus reduce the number of rectangles). Two bands can be merged
- * only if the bottom of one touches the top of the other and they have
- * rectangles in the same places (of the same width, of course).
- *
- * Adam de Boor wrote most of the original region code.  Joel McCormack
- * substantially modified or rewrote most of the core arithmetic routines,
- * and added miRegionValidate in order to support several speed improvements
- * to miValidateTree.  Bob Scheifler changed the representation to be more
- * compact when empty or a single rectangle, and did a bunch of gratuitous
- * reformatting.
- */
-
-/*  true iff two Boxes overlap */
-#define EXTENTCHECK(r1,r2) \
-      (!( ((r1)->x2 <= (r2)->x1)  || \
-          ((r1)->x1 >= (r2)->x2)  || \
-          ((r1)->y2 <= (r2)->y1)  || \
-          ((r1)->y1 >= (r2)->y2) ) )
-
-/* true iff (x,y) is in Box */
-#define INBOX(r,x,y) \
-      ( ((r)->x2 >  x) && \
-        ((r)->x1 <= x) && \
-        ((r)->y2 >  y) && \
-        ((r)->y1 <= y) )
-
-/* true iff Box r1 contains Box r2 */
-#define SUBSUMES(r1,r2) \
-      ( ((r1)->x1 <= (r2)->x1) && \
-        ((r1)->x2 >= (r2)->x2) && \
-        ((r1)->y1 <= (r2)->y1) && \
-        ((r1)->y2 >= (r2)->y2) )
-
-#define xallocData(n) xalloc(REGION_SZOF(n))
-#define xfreeData(reg) if ((reg)->data && (reg)->data->size) xfree((reg)->data)
-
-#define RECTALLOC_BAIL(pReg,n,bail) \
-if (!(pReg)->data || (((pReg)->data->numRects + (n)) > (pReg)->data->size)) \
-    if (!miRectAlloc(pReg, n)) { goto bail; }
-
-#define RECTALLOC(pReg,n) \
-if (!(pReg)->data || (((pReg)->data->numRects + (n)) > (pReg)->data->size)) \
-    if (!miRectAlloc(pReg, n)) { return FALSE; }
-
-#define ADDRECT(pNextRect,nx1,ny1,nx2,ny2)	\
-{						\
-    pNextRect->x1 = nx1;			\
-    pNextRect->y1 = ny1;			\
-    pNextRect->x2 = nx2;			\
-    pNextRect->y2 = ny2;			\
-    pNextRect++;				\
-}
-
-#define NEWRECT(pReg,pNextRect,nx1,ny1,nx2,ny2)			\
-{									\
-    if (!(pReg)->data || ((pReg)->data->numRects == (pReg)->data->size))\
-    {									\
-	if (!miRectAlloc(pReg, 1))					\
-	    return FALSE;						\
-	pNextRect = REGION_TOP(pReg);					\
-    }									\
-    ADDRECT(pNextRect,nx1,ny1,nx2,ny2);					\
-    pReg->data->numRects++;						\
-    assert(pReg->data->numRects<=pReg->data->size);			\
-}
-
-
-#define DOWNSIZE(reg,numRects)						 \
-if (((numRects) < ((reg)->data->size >> 1)) && ((reg)->data->size > 50)) \
-{									 \
-    RegDataPtr NewData;							 \
-    NewData = (RegDataPtr)xrealloc((reg)->data, REGION_SZOF(numRects));	 \
-    if (NewData)							 \
-    {									 \
-	NewData->size = (numRects);					 \
-	(reg)->data = NewData;						 \
-    }									 \
-}
-
-
-BoxRec miEmptyBox = {0, 0, 0, 0};
-RegDataRec miEmptyData = {0, 0};
-
-RegDataRec  miBrokenData = {0, 0};
-static RegionRec   miBrokenRegion = { { 0, 0, 0, 0 }, &miBrokenData };
-
-void
-InitRegions (void)
-{
-    pixman_region_set_static_pointers (&miEmptyBox, &miEmptyData, &miBrokenData);
-}
-
-/*****************************************************************
- *   RegionCreate(rect, size)
- *     This routine does a simple malloc to make a structure of
- *     REGION of "size" number of rectangles.
- *****************************************************************/
-
-RegionPtr
-miRegionCreate(BoxPtr rect, int size)
-{
-    RegionPtr pReg;
-   
-    pReg = (RegionPtr)xalloc(sizeof(RegionRec));
-    if (!pReg)
-	return &miBrokenRegion;
-
-    miRegionInit (pReg, rect, size);
-    
-    return(pReg);
-}
-
-void
-miRegionDestroy(RegionPtr pReg)
-{
-    pixman_region_fini (pReg);
-    if (pReg != &miBrokenRegion)
-	xfree(pReg);
-}
-
-void
-miPrintRegion(RegionPtr rgn)
-{
-    int num, size;
-    int i;
-    BoxPtr rects;
-
-    num = REGION_NUM_RECTS(rgn);
-    size = REGION_SIZE(rgn);
-    rects = REGION_RECTS(rgn);
-    ErrorF("[mi] num: %d size: %d\n", num, size);
-    ErrorF("[mi] extents: %d %d %d %d\n",
-	   rgn->extents.x1, rgn->extents.y1, rgn->extents.x2, rgn->extents.y2);
-    for (i = 0; i < num; i++)
-      ErrorF("[mi] %d %d %d %d \n",
-	     rects[i].x1, rects[i].y1, rects[i].x2, rects[i].y2);
-    ErrorF("[mi] \n");
-}
-
-Bool
-miRegionEqual(RegionPtr reg1, RegionPtr reg2)
-{
-    return pixman_region_equal (reg1, reg2);
-}
-
-#ifdef DEBUG
-Bool
-miValidRegion(RegionPtr reg)
-{
-    int i, numRects;
-    
-    if ((reg->extents.x1 > reg->extents.x2) ||
-	(reg->extents.y1 > reg->extents.y2))
-	return FALSE;
-    numRects = REGION_NUM_RECTS(reg);
-    if (!numRects)
-	return ((reg->extents.x1 == reg->extents.x2) &&
-		(reg->extents.y1 == reg->extents.y2) &&
-		(reg->data->size || (reg->data == &miEmptyData)));
-    else if (numRects == 1)
-	return (!reg->data);
-    else
-    {
-	BoxPtr pboxP, pboxN;
-	BoxRec box;
-	
-	pboxP = REGION_RECTS(reg);
-	box = *pboxP;
-	box.y2 = pboxP[numRects-1].y2;
-	pboxN = pboxP + 1;
-	for (i = numRects; --i > 0; pboxP++, pboxN++)
-	{
-	    if ((pboxN->x1 >= pboxN->x2) ||
-		(pboxN->y1 >= pboxN->y2))
-		return FALSE;
-	    if (pboxN->x1 < box.x1)
-		box.x1 = pboxN->x1;
-	    if (pboxN->x2 > box.x2)
-		box.x2 = pboxN->x2;
-	    if ((pboxN->y1 < pboxP->y1) ||
-		((pboxN->y1 == pboxP->y1) &&
-		 ((pboxN->x1 < pboxP->x2) || (pboxN->y2 != pboxP->y2))))
-		return FALSE;
-	}
-	return ((box.x1 == reg->extents.x1) &&
-		(box.x2 == reg->extents.x2) &&
-		(box.y1 == reg->extents.y1) &&
-		(box.y2 == reg->extents.y2));
-    }
-}
-#endif /* DEBUG */
-
-/*****************************************************************
- *   RegionInit(pReg, rect, size)
- *     Outer region rect is statically allocated.
- *****************************************************************/
-
-void
-miRegionInit(RegionPtr pReg, BoxPtr rect, int size)
-{
-    if (rect)
-	pixman_region_init_with_extents (pReg, rect);
-    else
-	pixman_region_init (pReg);
-}
-
-void
-miRegionUninit(RegionPtr pReg)
-{
-    pixman_region_fini (pReg);
-}
-
-Bool
-miRegionBreak (RegionPtr pReg)
-{
-    xfreeData (pReg);
-    pReg->extents = miEmptyBox;
-    pReg->data = &miBrokenData;
-    return FALSE;
-}
-
-Bool
-miRectAlloc(RegionPtr pRgn, int n)
-{
-    RegDataPtr	data;
-    
-    if (!pRgn->data)
-    {
-	n++;
-	pRgn->data = xallocData(n);
-	if (!pRgn->data)
-	    return miRegionBreak (pRgn);
-	pRgn->data->numRects = 1;
-	*REGION_BOXPTR(pRgn) = pRgn->extents;
-    }
-    else if (!pRgn->data->size)
-    {
-	pRgn->data = xallocData(n);
-	if (!pRgn->data)
-	    return miRegionBreak (pRgn);
-	pRgn->data->numRects = 0;
-    }
-    else
-    {
-	if (n == 1)
-	{
-	    n = pRgn->data->numRects;
-	    if (n > 500) /* XXX pick numbers out of a hat */
-		n = 250;
-	}
-	n += pRgn->data->numRects;
-	data = (RegDataPtr)xrealloc(pRgn->data, REGION_SZOF(n));
-	if (!data)
-	    return miRegionBreak (pRgn);
-	pRgn->data = data;
-    }
-    pRgn->data->size = n;
-    return TRUE;
-}
-
-Bool
-miRegionCopy(RegionPtr dst, RegionPtr src)
-{
-    return pixman_region_copy (dst, src);
-}
-
-/*======================================================================
- *	    Generic Region Operator
- *====================================================================*/
-
-/*-
- *-----------------------------------------------------------------------
- * miCoalesce --
- *	Attempt to merge the boxes in the current band with those in the
- *	previous one.  We are guaranteed that the current band extends to
- *      the end of the rects array.  Used only by miRegionOp.
- *
- * Results:
- *	The new index for the previous band.
- *
- * Side Effects:
- *	If coalescing takes place:
- *	    - rectangles in the previous band will have their y2 fields
- *	      altered.
- *	    - pReg->data->numRects will be decreased.
- *
- *-----------------------------------------------------------------------
- */
-_X_INLINE static int
-miCoalesce (
-    RegionPtr	pReg,	    	/* Region to coalesce		     */
-    int	    	  	prevStart,  	/* Index of start of previous band   */
-    int	    	  	curStart)   	/* Index of start of current band    */
-{
-    BoxPtr	pPrevBox;   	/* Current box in previous band	     */
-    BoxPtr	pCurBox;    	/* Current box in current band       */
-    int  	numRects;	/* Number rectangles in both bands   */
-    int		y2;		/* Bottom of current band	     */
-    /*
-     * Figure out how many rectangles are in the band.
-     */
-    numRects = curStart - prevStart;
-    assert(numRects == pReg->data->numRects - curStart);
-
-    if (!numRects) return curStart;
-
-    /*
-     * The bands may only be coalesced if the bottom of the previous
-     * matches the top scanline of the current.
-     */
-    pPrevBox = REGION_BOX(pReg, prevStart);
-    pCurBox = REGION_BOX(pReg, curStart);
-    if (pPrevBox->y2 != pCurBox->y1) return curStart;
-
-    /*
-     * Make sure the bands have boxes in the same places. This
-     * assumes that boxes have been added in such a way that they
-     * cover the most area possible. I.e. two boxes in a band must
-     * have some horizontal space between them.
-     */
-    y2 = pCurBox->y2;
-
-    do {
-	if ((pPrevBox->x1 != pCurBox->x1) || (pPrevBox->x2 != pCurBox->x2)) {
-	    return (curStart);
-	}
-	pPrevBox++;
-	pCurBox++;
-	numRects--;
-    } while (numRects);
-
-    /*
-     * The bands may be merged, so set the bottom y of each box
-     * in the previous band to the bottom y of the current band.
-     */
-    numRects = curStart - prevStart;
-    pReg->data->numRects -= numRects;
-    do {
-	pPrevBox--;
-	pPrevBox->y2 = y2;
-	numRects--;
-    } while (numRects);
-    return prevStart;
-}
-
-
-/* Quicky macro to avoid trivial reject procedure calls to miCoalesce */
-
-#define Coalesce(newReg, prevBand, curBand)				\
-    if (curBand - prevBand == newReg->data->numRects - curBand) {	\
-	prevBand = miCoalesce(newReg, prevBand, curBand);		\
-    } else {								\
-	prevBand = curBand;						\
-    }
-
-/*-
- *-----------------------------------------------------------------------
- * miAppendNonO --
- *	Handle a non-overlapping band for the union and subtract operations.
- *      Just adds the (top/bottom-clipped) rectangles into the region.
- *      Doesn't have to check for subsumption or anything.
- *
- * Results:
- *	None.
- *
- * Side Effects:
- *	pReg->data->numRects is incremented and the rectangles overwritten
- *	with the rectangles we're passed.
- *
- *-----------------------------------------------------------------------
- */
-
-_X_INLINE static Bool
-miAppendNonO (
-    RegionPtr	pReg,
-    BoxPtr	r,
-    BoxPtr  	rEnd,
-    int  	y1,
-    int  	y2)
-{
-    BoxPtr	pNextRect;
-    int		newRects;
-
-    newRects = rEnd - r;
-
-    assert(y1 < y2);
-    assert(newRects != 0);
-
-    /* Make sure we have enough space for all rectangles to be added */
-    RECTALLOC(pReg, newRects);
-    pNextRect = REGION_TOP(pReg);
-    pReg->data->numRects += newRects;
-    do {
-	assert(r->x1 < r->x2);
-	ADDRECT(pNextRect, r->x1, y1, r->x2, y2);
-	r++;
-    } while (r != rEnd);
-
-    return TRUE;
-}
-
-#define FindBand(r, rBandEnd, rEnd, ry1)		    \
-{							    \
-    ry1 = r->y1;					    \
-    rBandEnd = r+1;					    \
-    while ((rBandEnd != rEnd) && (rBandEnd->y1 == ry1)) {   \
-	rBandEnd++;					    \
-    }							    \
-}
-
-#define	AppendRegions(newReg, r, rEnd)					\
-{									\
-    int newRects;							\
-    if ((newRects = rEnd - r)) {					\
-	RECTALLOC(newReg, newRects);					\
-	memmove((char *)REGION_TOP(newReg),(char *)r, 			\
-              newRects * sizeof(BoxRec));				\
-	newReg->data->numRects += newRects;				\
-    }									\
-}
-
-/*-
- *-----------------------------------------------------------------------
- * miRegionOp --
- *	Apply an operation to two regions. Called by miUnion, miInverse,
- *	miSubtract, miIntersect....  Both regions MUST have at least one
- *      rectangle, and cannot be the same object.
- *
- * Results:
- *	TRUE if successful.
- *
- * Side Effects:
- *	The new region is overwritten.
- *	pOverlap set to TRUE if overlapFunc ever returns TRUE.
- *
- * Notes:
- *	The idea behind this function is to view the two regions as sets.
- *	Together they cover a rectangle of area that this function divides
- *	into horizontal bands where points are covered only by one region
- *	or by both. For the first case, the nonOverlapFunc is called with
- *	each the band and the band's upper and lower extents. For the
- *	second, the overlapFunc is called to process the entire band. It
- *	is responsible for clipping the rectangles in the band, though
- *	this function provides the boundaries.
- *	At the end of each band, the new region is coalesced, if possible,
- *	to reduce the number of rectangles in the region.
- *
- *-----------------------------------------------------------------------
- */
-
-typedef Bool (*OverlapProcPtr)(
-    RegionPtr	pReg,
-    BoxPtr	r1,
-    BoxPtr   	r1End,
-    BoxPtr	r2,
-    BoxPtr   	r2End,
-    short    	y1,
-    short    	y2,
-    Bool	*pOverlap);
-
-static Bool
-miRegionOp(
-    RegionPtr       newReg,		    /* Place to store result	     */
-    RegionPtr       reg1,		    /* First region in operation     */
-    RegionPtr       reg2,		    /* 2d region in operation        */
-    OverlapProcPtr  overlapFunc,            /* Function to call for over-
-					     * lapping bands		     */
-    Bool	    appendNon1,		    /* Append non-overlapping bands  */
-					    /* in region 1 ? */
-    Bool	    appendNon2,		    /* Append non-overlapping bands  */
-					    /* in region 2 ? */
-    Bool	    *pOverlap)
-{
-    BoxPtr 	r1;		    /* Pointer into first region     */
-    BoxPtr 	r2;		    /* Pointer into 2d region	     */
-    BoxPtr	r1End;		    /* End of 1st region	     */
-    BoxPtr	r2End;		    /* End of 2d region		     */
-    short	ybot;		    /* Bottom of intersection	     */
-    short	ytop;		    /* Top of intersection	     */
-    RegDataPtr	oldData;	    /* Old data for newReg	     */
-    int		prevBand;	    /* Index of start of
-				     * previous band in newReg       */
-    int		curBand;	    /* Index of start of current
-				     * band in newReg		     */
-    BoxPtr  	r1BandEnd;	    /* End of current band in r1     */
-    BoxPtr  	r2BandEnd;	    /* End of current band in r2     */
-    short   	top;		    /* Top of non-overlapping band   */
-    short   	bot;	    	    /* Bottom of non-overlapping band*/
-    int     	r1y1;	    	    /* Temps for r1->y1 and r2->y1   */
-    int     	r2y1;
-    int	    	newSize;
-    int	    	numRects;
-
-    /*
-     * Break any region computed from a broken region
-     */
-    if (REGION_NAR (reg1) || REGION_NAR(reg2))
-	return miRegionBreak (newReg);
-    
-    /*
-     * Initialization:
-     *	set r1, r2, r1End and r2End appropriately, save the rectangles
-     * of the destination region until the end in case it's one of
-     * the two source regions, then mark the "new" region empty, allocating
-     * another array of rectangles for it to use.
-     */
-
-    r1 = REGION_RECTS(reg1);
-    newSize = REGION_NUM_RECTS(reg1);
-    r1End = r1 + newSize;
-    numRects = REGION_NUM_RECTS(reg2);
-    r2 = REGION_RECTS(reg2);
-    r2End = r2 + numRects;
-    assert(r1 != r1End);
-    assert(r2 != r2End);
-
-    oldData = NULL;
-    if (((newReg == reg1) && (newSize > 1)) ||
-	((newReg == reg2) && (numRects > 1)))
-    {
-	oldData = newReg->data;
-	newReg->data = &miEmptyData;
-    }
-    /* guess at new size */
-    if (numRects > newSize)
-	newSize = numRects;
-    newSize <<= 1;
-    if (!newReg->data)
-	newReg->data = &miEmptyData;
-    else if (newReg->data->size)
-	newReg->data->numRects = 0;
-    if (newSize > newReg->data->size)
-	if (!miRectAlloc(newReg, newSize))
-	    return FALSE;
-
-    /*
-     * Initialize ybot.
-     * In the upcoming loop, ybot and ytop serve different functions depending
-     * on whether the band being handled is an overlapping or non-overlapping
-     * band.
-     * 	In the case of a non-overlapping band (only one of the regions
-     * has points in the band), ybot is the bottom of the most recent
-     * intersection and thus clips the top of the rectangles in that band.
-     * ytop is the top of the next intersection between the two regions and
-     * serves to clip the bottom of the rectangles in the current band.
-     *	For an overlapping band (where the two regions intersect), ytop clips
-     * the top of the rectangles of both regions and ybot clips the bottoms.
-     */
-
-    ybot = min(r1->y1, r2->y1);
-    
-    /*
-     * prevBand serves to mark the start of the previous band so rectangles
-     * can be coalesced into larger rectangles. qv. miCoalesce, above.
-     * In the beginning, there is no previous band, so prevBand == curBand
-     * (curBand is set later on, of course, but the first band will always
-     * start at index 0). prevBand and curBand must be indices because of
-     * the possible expansion, and resultant moving, of the new region's
-     * array of rectangles.
-     */
-    prevBand = 0;
-    
-    do {
-	/*
-	 * This algorithm proceeds one source-band (as opposed to a
-	 * destination band, which is determined by where the two regions
-	 * intersect) at a time. r1BandEnd and r2BandEnd serve to mark the
-	 * rectangle after the last one in the current band for their
-	 * respective regions.
-	 */
-	assert(r1 != r1End);
-	assert(r2 != r2End);
-    
-	FindBand(r1, r1BandEnd, r1End, r1y1);
-	FindBand(r2, r2BandEnd, r2End, r2y1);
-
-	/*
-	 * First handle the band that doesn't intersect, if any.
-	 *
-	 * Note that attention is restricted to one band in the
-	 * non-intersecting region at once, so if a region has n
-	 * bands between the current position and the next place it overlaps
-	 * the other, this entire loop will be passed through n times.
-	 */
-	if (r1y1 < r2y1) {
-	    if (appendNon1) {
-		top = max(r1y1, ybot);
-		bot = min(r1->y2, r2y1);
-		if (top != bot)	{
-		    curBand = newReg->data->numRects;
-		    miAppendNonO(newReg, r1, r1BandEnd, top, bot);
-		    Coalesce(newReg, prevBand, curBand);
-		}
-	    }
-	    ytop = r2y1;
-	} else if (r2y1 < r1y1) {
-	    if (appendNon2) {
-		top = max(r2y1, ybot);
-		bot = min(r2->y2, r1y1);
-		if (top != bot) {
-		    curBand = newReg->data->numRects;
-		    miAppendNonO(newReg, r2, r2BandEnd, top, bot);
-		    Coalesce(newReg, prevBand, curBand);
-		}
-	    }
-	    ytop = r1y1;
-	} else {
-	    ytop = r1y1;
-	}
-
-	/*
-	 * Now see if we've hit an intersecting band. The two bands only
-	 * intersect if ybot > ytop
-	 */
-	ybot = min(r1->y2, r2->y2);
-	if (ybot > ytop) {
-	    curBand = newReg->data->numRects;
-	    (* overlapFunc)(newReg, r1, r1BandEnd, r2, r2BandEnd, ytop, ybot,
-			    pOverlap);
-	    Coalesce(newReg, prevBand, curBand);
-	}
-
-	/*
-	 * If we've finished with a band (y2 == ybot) we skip forward
-	 * in the region to the next band.
-	 */
-	if (r1->y2 == ybot) r1 = r1BandEnd;
-	if (r2->y2 == ybot) r2 = r2BandEnd;
-
-    } while (r1 != r1End && r2 != r2End);
-
-    /*
-     * Deal with whichever region (if any) still has rectangles left.
-     *
-     * We only need to worry about banding and coalescing for the very first
-     * band left.  After that, we can just group all remaining boxes,
-     * regardless of how many bands, into one final append to the list.
-     */
-
-    if ((r1 != r1End) && appendNon1) {
-	/* Do first nonOverlap1Func call, which may be able to coalesce */
-	FindBand(r1, r1BandEnd, r1End, r1y1);
-	curBand = newReg->data->numRects;
-	miAppendNonO(newReg, r1, r1BandEnd, max(r1y1, ybot), r1->y2);
-	Coalesce(newReg, prevBand, curBand);
-	/* Just append the rest of the boxes  */
-	AppendRegions(newReg, r1BandEnd, r1End);
-
-    } else if ((r2 != r2End) && appendNon2) {
-	/* Do first nonOverlap2Func call, which may be able to coalesce */
-	FindBand(r2, r2BandEnd, r2End, r2y1);
-	curBand = newReg->data->numRects;
-	miAppendNonO(newReg, r2, r2BandEnd, max(r2y1, ybot), r2->y2);
-	Coalesce(newReg, prevBand, curBand);
-	/* Append rest of boxes */
-	AppendRegions(newReg, r2BandEnd, r2End);
-    }
-
-    if (oldData)
-	xfree(oldData);
-
-    if (!(numRects = newReg->data->numRects))
-    {
-	xfreeData(newReg);
-	newReg->data = &miEmptyData;
-    }
-    else if (numRects == 1)
-    {
-	newReg->extents = *REGION_BOXPTR(newReg);
-	xfreeData(newReg);
-	newReg->data = NULL;
-    }
-    else
-    {
-	DOWNSIZE(newReg, numRects);
-    }
-
-    return TRUE;
-}
-
-/*-
- *-----------------------------------------------------------------------
- * miSetExtents --
- *	Reset the extents of a region to what they should be. Called by
- *	miSubtract and miIntersect as they can't figure it out along the
- *	way or do so easily, as miUnion can.
- *
- * Results:
- *	None.
- *
- * Side Effects:
- *	The region's 'extents' structure is overwritten.
- *
- *-----------------------------------------------------------------------
- */
-static void
-miSetExtents (RegionPtr pReg)
-{
-    BoxPtr pBox, pBoxEnd;
-
-    if (!pReg->data)
-	return;
-    if (!pReg->data->size)
-    {
-	pReg->extents.x2 = pReg->extents.x1;
-	pReg->extents.y2 = pReg->extents.y1;
-	return;
-    }
-
-    pBox = REGION_BOXPTR(pReg);
-    pBoxEnd = REGION_END(pReg);
-
-    /*
-     * Since pBox is the first rectangle in the region, it must have the
-     * smallest y1 and since pBoxEnd is the last rectangle in the region,
-     * it must have the largest y2, because of banding. Initialize x1 and
-     * x2 from  pBox and pBoxEnd, resp., as good things to initialize them
-     * to...
-     */
-    pReg->extents.x1 = pBox->x1;
-    pReg->extents.y1 = pBox->y1;
-    pReg->extents.x2 = pBoxEnd->x2;
-    pReg->extents.y2 = pBoxEnd->y2;
-
-    assert(pReg->extents.y1 < pReg->extents.y2);
-    while (pBox <= pBoxEnd) {
-	if (pBox->x1 < pReg->extents.x1)
-	    pReg->extents.x1 = pBox->x1;
-	if (pBox->x2 > pReg->extents.x2)
-	    pReg->extents.x2 = pBox->x2;
-	pBox++;
-    };
-
-    assert(pReg->extents.x1 < pReg->extents.x2);
-}
-
-/*======================================================================
- *	    Region Intersection
- *====================================================================*/
-/*-
- *-----------------------------------------------------------------------
- * miIntersectO --
- *	Handle an overlapping band for miIntersect.
- *
- * Results:
- *	TRUE if successful.
- *
- * Side Effects:
- *	Rectangles may be added to the region.
- *
- *-----------------------------------------------------------------------
- */
-/*ARGSUSED*/
-Bool
-miIntersect(
-    RegionPtr	newReg,     /* destination Region */
-    RegionPtr	reg1,
-    RegionPtr	reg2        /* source regions     */
-    )
-{
-    return pixman_region_intersect (newReg, reg1, reg2);
-}
-
-#define MERGERECT(r)						\
-{								\
-    if (r->x1 <= x2) {						\
-	/* Merge with current rectangle */			\
-	if (r->x1 < x2) *pOverlap = TRUE;				\
-	if (x2 < r->x2) x2 = r->x2;				\
-    } else {							\
-	/* Add current rectangle, start new one */		\
-	NEWRECT(pReg, pNextRect, x1, y1, x2, y2);		\
-	x1 = r->x1;						\
-	x2 = r->x2;						\
-    }								\
-    r++;							\
-}
-
-/*======================================================================
- *	    Region Union
- *====================================================================*/
-
-/*-
- *-----------------------------------------------------------------------
- * miUnionO --
- *	Handle an overlapping band for the union operation. Picks the
- *	left-most rectangle each time and merges it into the region.
- *
- * Results:
- *	TRUE if successful.
- *
- * Side Effects:
- *	pReg is overwritten.
- *	pOverlap is set to TRUE if any boxes overlap.
- *
- *-----------------------------------------------------------------------
- */
-static Bool
-miUnionO (
-    RegionPtr	pReg,
-    BoxPtr	r1,
-    BoxPtr  	r1End,
-    BoxPtr	r2,
-    BoxPtr  	r2End,
-    short	y1,
-    short	y2,
-    Bool	*pOverlap)
-{
-    BoxPtr     pNextRect;
-    int        x1;     /* left and right side of current union */
-    int        x2;
-
-    assert (y1 < y2);
-    assert(r1 != r1End && r2 != r2End);
-
-    pNextRect = REGION_TOP(pReg);
-
-    /* Start off current rectangle */
-    if (r1->x1 < r2->x1)
-    {
-	x1 = r1->x1;
-	x2 = r1->x2;
-	r1++;
-    }
-    else
-    {
-	x1 = r2->x1;
-	x2 = r2->x2;
-	r2++;
-    }
-    while (r1 != r1End && r2 != r2End)
-    {
-	if (r1->x1 < r2->x1) MERGERECT(r1) else MERGERECT(r2);
-    }
-
-    /* Finish off whoever (if any) is left */
-    if (r1 != r1End)
-    {
-	do
-	{
-	    MERGERECT(r1);
-	} while (r1 != r1End);
-    }
-    else if (r2 != r2End)
-    {
-	do
-	{
-	    MERGERECT(r2);
-	} while (r2 != r2End);
-    }
-    
-    /* Add current rectangle */
-    NEWRECT(pReg, pNextRect, x1, y1, x2, y2);
-
-    return TRUE;
-}
-
-Bool
-miUnion(
-    RegionPtr	newReg,          /* destination Region */
-    RegionPtr	reg1,
-    RegionPtr	reg2             /* source regions     */
-    )
-{
-    return pixman_region_union (newReg, reg1, reg2);
-}
-
-/*======================================================================
- *	    Batch Rectangle Union
- *====================================================================*/
-
-/*-
- *-----------------------------------------------------------------------
- * miRegionAppend --
- * 
- *      "Append" the rgn rectangles onto the end of dstrgn, maintaining
- *      knowledge of YX-banding when it's easy.  Otherwise, dstrgn just
- *      becomes a non-y-x-banded random collection of rectangles, and not
- *      yet a true region.  After a sequence of appends, the caller must
- *      call miRegionValidate to ensure that a valid region is constructed.
- *
- * Results:
- *	TRUE if successful.
- *
- * Side Effects:
- *      dstrgn is modified if rgn has rectangles.
- *
- */
-Bool
-miRegionAppend(RegionPtr dstrgn, RegionPtr rgn)
-{
-    int numRects, dnumRects, size;
-    BoxPtr new, old;
-    Bool prepend;
-
-    if (REGION_NAR(rgn))
-	return miRegionBreak (dstrgn);
-    
-    if (!rgn->data && (dstrgn->data == &miEmptyData))
-    {
-	dstrgn->extents = rgn->extents;
-	dstrgn->data = NULL;
-	return TRUE;
-    }
-
-    numRects = REGION_NUM_RECTS(rgn);
-    if (!numRects)
-	return TRUE;
-    prepend = FALSE;
-    size = numRects;
-    dnumRects = REGION_NUM_RECTS(dstrgn);
-    if (!dnumRects && (size < 200))
-	size = 200; /* XXX pick numbers out of a hat */
-    RECTALLOC(dstrgn, size);
-    old = REGION_RECTS(rgn);
-    if (!dnumRects)
-	dstrgn->extents = rgn->extents;
-    else if (dstrgn->extents.x2 > dstrgn->extents.x1)
-    {
-	BoxPtr first, last;
-
-	first = old;
-	last = REGION_BOXPTR(dstrgn) + (dnumRects - 1);
-	if ((first->y1 > last->y2) ||
-	    ((first->y1 == last->y1) && (first->y2 == last->y2) &&
-	     (first->x1 > last->x2)))
-	{
-	    if (rgn->extents.x1 < dstrgn->extents.x1)
-		dstrgn->extents.x1 = rgn->extents.x1;
-	    if (rgn->extents.x2 > dstrgn->extents.x2)
-		dstrgn->extents.x2 = rgn->extents.x2;
-	    dstrgn->extents.y2 = rgn->extents.y2;
-	}
-	else
-	{
-	    first = REGION_BOXPTR(dstrgn);
-	    last = old + (numRects - 1);
-	    if ((first->y1 > last->y2) ||
-		((first->y1 == last->y1) && (first->y2 == last->y2) &&
-		 (first->x1 > last->x2)))
-	    {
-		prepend = TRUE;
-		if (rgn->extents.x1 < dstrgn->extents.x1)
-		    dstrgn->extents.x1 = rgn->extents.x1;
-		if (rgn->extents.x2 > dstrgn->extents.x2)
-		    dstrgn->extents.x2 = rgn->extents.x2;
-		dstrgn->extents.y1 = rgn->extents.y1;
-	    }
-	    else
-		dstrgn->extents.x2 = dstrgn->extents.x1;
-	}
-    }
-    if (prepend)
-    {
-	new = REGION_BOX(dstrgn, numRects);
-	if (dnumRects == 1)
-	    *new = *REGION_BOXPTR(dstrgn);
-	else
-	    memmove((char *)new,(char *)REGION_BOXPTR(dstrgn), 
-		  dnumRects * sizeof(BoxRec));
-	new = REGION_BOXPTR(dstrgn);
-    }
-    else
-	new = REGION_BOXPTR(dstrgn) + dnumRects;
-    if (numRects == 1)
-	*new = *old;
-    else
-	memmove((char *)new, (char *)old, numRects * sizeof(BoxRec));
-    dstrgn->data->numRects += numRects;
-    return TRUE;
-}
-
-   
-#define ExchangeRects(a, b) \
-{			    \
-    BoxRec     t;	    \
-    t = rects[a];	    \
-    rects[a] = rects[b];    \
-    rects[b] = t;	    \
-}
-
-static void
-QuickSortRects(
-    BoxRec     rects[],
-    int        numRects)
-{
-    int	y1;
-    int	x1;
-    int        i, j;
-    BoxPtr     r;
-
-    /* Always called with numRects > 1 */
-
-    do
-    {
-	if (numRects == 2)
-	{
-	    if (rects[0].y1 > rects[1].y1 ||
-		    (rects[0].y1 == rects[1].y1 && rects[0].x1 > rects[1].x1))
-		ExchangeRects(0, 1);
-	    return;
-	}
-
-	/* Choose partition element, stick in location 0 */
-        ExchangeRects(0, numRects >> 1);
-	y1 = rects[0].y1;
-	x1 = rects[0].x1;
-
-        /* Partition array */
-        i = 0;
-        j = numRects;
-        do
-	{
-	    r = &(rects[i]);
-	    do
-	    {
-		r++;
-		i++;
-            } while (i != numRects &&
-		     (r->y1 < y1 || (r->y1 == y1 && r->x1 < x1)));
-	    r = &(rects[j]);
-	    do
-	    {
-		r--;
-		j--;
-            } while (y1 < r->y1 || (y1 == r->y1 && x1 < r->x1));
-            if (i < j)
-		ExchangeRects(i, j);
-        } while (i < j);
-
-        /* Move partition element back to middle */
-        ExchangeRects(0, j);
-
-	/* Recurse */
-        if (numRects-j-1 > 1)
-	    QuickSortRects(&rects[j+1], numRects-j-1);
-        numRects = j;
-    } while (numRects > 1);
-}
-
-/*-
- *-----------------------------------------------------------------------
- * miRegionValidate --
- * 
- *      Take a ``region'' which is a non-y-x-banded random collection of
- *      rectangles, and compute a nice region which is the union of all the
- *      rectangles.
- *
- * Results:
- *	TRUE if successful.
- *
- * Side Effects:
- *      The passed-in ``region'' may be modified.
- *	pOverlap set to TRUE if any retangles overlapped, else FALSE;
- *
- * Strategy:
- *      Step 1. Sort the rectangles into ascending order with primary key y1
- *		and secondary key x1.
- *
- *      Step 2. Split the rectangles into the minimum number of proper y-x
- *		banded regions.  This may require horizontally merging
- *		rectangles, and vertically coalescing bands.  With any luck,
- *		this step in an identity tranformation (ala the Box widget),
- *		or a coalescing into 1 box (ala Menus).
- *
- *	Step 3. Merge the separate regions down to a single region by calling
- *		miUnion.  Maximize the work each miUnion call does by using
- *		a binary merge.
- *
- *-----------------------------------------------------------------------
- */
-
-Bool
-miRegionValidate(RegionPtr badreg, Bool *pOverlap)
-{
-    /* Descriptor for regions under construction  in Step 2. */
-    typedef struct {
-	RegionRec   reg;
-	int	    prevBand;
-	int	    curBand;
-    } RegionInfo;
-
-    int	numRects;   /* Original numRects for badreg	    */
-    RegionInfo *ri;	    /* Array of current regions		    */
-    int	numRI;      /* Number of entries used in ri	    */
-    int	sizeRI;	    /* Number of entries available in ri    */
-    int	i;	    /* Index into rects			    */
-    int	j;	    /* Index into ri			    */
-    RegionInfo *rit;       /* &ri[j]				    */
-    RegionPtr  reg;        /* ri[j].reg			    */
-    BoxPtr	box;	    /* Current box in rects		    */
-    BoxPtr	riBox;      /* Last box in ri[j].reg		    */
-    RegionPtr  hreg;       /* ri[j_half].reg			    */
-    Bool		ret = TRUE;
-
-    *pOverlap = FALSE;
-    if (!badreg->data)
-    {
-	good(badreg);
-	return TRUE;
-    }
-    numRects = badreg->data->numRects;
-    if (!numRects)
-    {
-	if (REGION_NAR(badreg))
-	    return FALSE;
-	good(badreg);
-	return TRUE;
-    }
-    if (badreg->extents.x1 < badreg->extents.x2)
-    {
-	if ((numRects) == 1)
-	{
-	    xfreeData(badreg);
-	    badreg->data = (RegDataPtr) NULL;
-	}
-	else
-	{
-	    DOWNSIZE(badreg, numRects);
-	}
-	good(badreg);
-	return TRUE;
-    }
-
-    /* Step 1: Sort the rects array into ascending (y1, x1) order */
-    QuickSortRects(REGION_BOXPTR(badreg), numRects);
-
-    /* Step 2: Scatter the sorted array into the minimum number of regions */
-
-    /* Set up the first region to be the first rectangle in badreg */
-    /* Note that step 2 code will never overflow the ri[0].reg rects array */
-    ri = (RegionInfo *) xalloc(4 * sizeof(RegionInfo));
-    if (!ri)
-	return miRegionBreak (badreg);
-    sizeRI = 4;
-    numRI = 1;
-    ri[0].prevBand = 0;
-    ri[0].curBand = 0;
-    ri[0].reg = *badreg;
-    box = REGION_BOXPTR(&ri[0].reg);
-    ri[0].reg.extents = *box;
-    ri[0].reg.data->numRects = 1;
-
-    /* Now scatter rectangles into the minimum set of valid regions.  If the
-       next rectangle to be added to a region would force an existing rectangle
-       in the region to be split up in order to maintain y-x banding, just
-       forget it.  Try the next region.  If it doesn't fit cleanly into any
-       region, make a new one. */
-
-    for (i = numRects; --i > 0;)
-    {
-	box++;
-	/* Look for a region to append box to */
-	for (j = numRI, rit = ri; --j >= 0; rit++)
-	{
-	    reg = &rit->reg;
-	    riBox = REGION_END(reg);
-
-	    if (box->y1 == riBox->y1 && box->y2 == riBox->y2)
-	    {
-		/* box is in same band as riBox.  Merge or append it */
-		if (box->x1 <= riBox->x2)
-		{
-		    /* Merge it with riBox */
-		    if (box->x1 < riBox->x2) *pOverlap = TRUE;
-		    if (box->x2 > riBox->x2) riBox->x2 = box->x2;
-		}
-		else
-		{
-		    RECTALLOC_BAIL(reg, 1, bail);
-		    *REGION_TOP(reg) = *box;
-		    reg->data->numRects++;
-		}
-		goto NextRect;   /* So sue me */
-	    }
-	    else if (box->y1 >= riBox->y2)
-	    {
-		/* Put box into new band */
-		if (reg->extents.x2 < riBox->x2) reg->extents.x2 = riBox->x2;
-		if (reg->extents.x1 > box->x1)   reg->extents.x1 = box->x1;
-		Coalesce(reg, rit->prevBand, rit->curBand);
-		rit->curBand = reg->data->numRects;
-		RECTALLOC_BAIL(reg, 1, bail);
-		*REGION_TOP(reg) = *box;
-		reg->data->numRects++;
-		goto NextRect;
-	    }
-	    /* Well, this region was inappropriate.  Try the next one. */
-	} /* for j */
-
-	/* Uh-oh.  No regions were appropriate.  Create a new one. */
-	if (sizeRI == numRI)
-	{
-	    /* Oops, allocate space for new region information */
-	    sizeRI <<= 1;
-	    rit = (RegionInfo *) xrealloc(ri, sizeRI * sizeof(RegionInfo));
-	    if (!rit)
-		goto bail;
-	    ri = rit;
-	    rit = &ri[numRI];
-	}
-	numRI++;
-	rit->prevBand = 0;
-	rit->curBand = 0;
-	rit->reg.extents = *box;
-	rit->reg.data = NULL;
-	if (!miRectAlloc(&rit->reg, (i+numRI) / numRI)) /* MUST force allocation */
-	    goto bail;
-NextRect: ;
-    } /* for i */
-
-    /* Make a final pass over each region in order to Coalesce and set
-       extents.x2 and extents.y2 */
-
-    for (j = numRI, rit = ri; --j >= 0; rit++)
-    {
-	reg = &rit->reg;
-	riBox = REGION_END(reg);
-	reg->extents.y2 = riBox->y2;
-	if (reg->extents.x2 < riBox->x2) reg->extents.x2 = riBox->x2;
-	Coalesce(reg, rit->prevBand, rit->curBand);
-	if (reg->data->numRects == 1) /* keep unions happy below */
-	{
-	    xfreeData(reg);
-	    reg->data = NULL;
-	}
-    }
-
-    /* Step 3: Union all regions into a single region */
-    while (numRI > 1)
-    {
-	int half = numRI/2;
-	for (j = numRI & 1; j < (half + (numRI & 1)); j++)
-	{
-	    reg = &ri[j].reg;
-	    hreg = &ri[j+half].reg;
-	    if (!miRegionOp(reg, reg, hreg, miUnionO, TRUE, TRUE, pOverlap))
-		ret = FALSE;
-	    if (hreg->extents.x1 < reg->extents.x1)
-		reg->extents.x1 = hreg->extents.x1;
-	    if (hreg->extents.y1 < reg->extents.y1)
-		reg->extents.y1 = hreg->extents.y1;
-	    if (hreg->extents.x2 > reg->extents.x2)
-		reg->extents.x2 = hreg->extents.x2;
-	    if (hreg->extents.y2 > reg->extents.y2)
-		reg->extents.y2 = hreg->extents.y2;
-	    xfreeData(hreg);
-	}
-	numRI -= half;
-    }
-    *badreg = ri[0].reg;
-    xfree(ri);
-    good(badreg);
-    return ret;
-bail:
-    for (i = 0; i < numRI; i++)
-	xfreeData(&ri[i].reg);
-    xfree (ri);
-    return miRegionBreak (badreg);
-}
-
-RegionPtr
-miRectsToRegion(int nrects, xRectangle *prect, int ctype)
-{
-    
-    RegionPtr		pRgn;
-    RegDataPtr		pData;
-    BoxPtr		pBox;
-    int        		i;
-    int			x1, y1, x2, y2;
-
-    pRgn = miRegionCreate(NullBox, 0);
-    if (REGION_NAR (pRgn))
-	return pRgn;
-    if (!nrects)
-	return pRgn;
-    if (nrects == 1)
-    {
-	x1 = prect->x;
-	y1 = prect->y;
-	if ((x2 = x1 + (int) prect->width) > MAXSHORT)
-	    x2 = MAXSHORT;
-	if ((y2 = y1 + (int) prect->height) > MAXSHORT)
-	    y2 = MAXSHORT;
-	if (x1 != x2 && y1 != y2)
-	{
-	    pRgn->extents.x1 = x1;
-	    pRgn->extents.y1 = y1;
-	    pRgn->extents.x2 = x2;
-	    pRgn->extents.y2 = y2;
-	    pRgn->data = NULL;
-	}
-	return pRgn;
-    }
-    pData = xallocData(nrects);
-    if (!pData)
-    {
-	miRegionBreak (pRgn);
-	return pRgn;
-    }
-    pBox = (BoxPtr) (pData + 1);
-    for (i = nrects; --i >= 0; prect++)
-    {
-	x1 = prect->x;
-	y1 = prect->y;
-	if ((x2 = x1 + (int) prect->width) > MAXSHORT)
-	    x2 = MAXSHORT;
-	if ((y2 = y1 + (int) prect->height) > MAXSHORT)
-	    y2 = MAXSHORT;
-	if (x1 != x2 && y1 != y2)
-	{
-	    pBox->x1 = x1;
-	    pBox->y1 = y1;
-	    pBox->x2 = x2;
-	    pBox->y2 = y2;
-	    pBox++;
-	}
-    }
-    if (pBox != (BoxPtr) (pData + 1))
-    {
-	pData->size = nrects;
-	pData->numRects = pBox - (BoxPtr) (pData + 1);
-    	pRgn->data = pData;
-    	if (ctype != CT_YXBANDED)
-    	{
-	    Bool overlap; /* result ignored */
-	    pRgn->extents.x1 = pRgn->extents.x2 = 0;
-	    miRegionValidate(pRgn, &overlap);
-    	}
-    	else
-	    miSetExtents(pRgn);
-    	good(pRgn);
-    }
-    else
-    {
-	xfree (pData);
-    }
-    return pRgn;
-}
-
-/*======================================================================
- * 	    	  Region Subtraction
- *====================================================================*/
-
-
-/*-
- *-----------------------------------------------------------------------
- * miSubtractO --
- *	Overlapping band subtraction. x1 is the left-most point not yet
- *	checked.
- *
- * Results:
- *	TRUE if successful.
- *
- * Side Effects:
- *	pReg may have rectangles added to it.
- *
- *-----------------------------------------------------------------------
- */
-/*ARGSUSED*/
-
-/*-
- *-----------------------------------------------------------------------
- * miSubtract --
- *	Subtract regS from regM and leave the result in regD.
- *	S stands for subtrahend, M for minuend and D for difference.
- *
- * Results:
- *	TRUE if successful.
- *
- * Side Effects:
- *	regD is overwritten.
- *
- *-----------------------------------------------------------------------
- */
-Bool
-miSubtract(RegionPtr regD, RegionPtr regM, RegionPtr regS)
-{
-    return pixman_region_subtract (regD, regM, regS);
-}
-
-/*======================================================================
- *	    Region Inversion
- *====================================================================*/
-
-/*-
- *-----------------------------------------------------------------------
- * miInverse --
- *	Take a region and a box and return a region that is everything
- *	in the box but not in the region. The careful reader will note
- *	that this is the same as subtracting the region from the box...
- *
- * Results:
- *	TRUE.
- *
- * Side Effects:
- *	newReg is overwritten.
- *
- *-----------------------------------------------------------------------
- */
-Bool
-miInverse(
-    RegionPtr	  newReg,       /* Destination region */
-    RegionPtr	  reg1,         /* Region to invert */
-    BoxPtr	  invRect	/* Bounding box for inversion */
-    )
-{
-    return pixman_region_inverse (newReg, reg1, invRect);
-}
-int
-miRectIn(RegionPtr region, BoxPtr prect)
-{
-    return pixman_region_contains_rectangle (region, prect);
-}
-
-/* TranslateRegion(pReg, x, y)
-   translates in place
-*/
-
-void
-miTranslateRegion(RegionPtr pReg, int x, int y)
-{
-    pixman_region_translate (pReg, x, y);
-}
-
-void
-miRegionReset(RegionPtr pReg, BoxPtr pBox)
-{
-    pixman_region_reset (pReg, pBox);
-}
-
-Bool
-miPointInRegion(
-    RegionPtr pReg,
-    int x,
-    int y,
-    BoxPtr box      /* "return" value */
-    )
-{
-    return pixman_region_contains_point (pReg, x, y, box);
-}
-
-Bool
-miRegionNotEmpty(RegionPtr pReg)
-{
-    return pixman_region_not_empty (pReg);
-}
-
-Bool
-miRegionBroken(RegionPtr pReg)
-{
-    good(pReg);
-    return (REGION_NAR(pReg));
-}
-
-void
-miRegionEmpty(RegionPtr pReg)
-{
-    good(pReg);
-    xfreeData(pReg);
-    pReg->extents.x2 = pReg->extents.x1;
-    pReg->extents.y2 = pReg->extents.y1;
-    pReg->data = &miEmptyData;
-}
-
-BoxPtr
-miRegionExtents(RegionPtr pReg)
-{
-    good(pReg);
-    return(&pReg->extents);
-}
-
-#define ExchangeSpans(a, b)				    \
-{							    \
-    DDXPointRec	tpt;				    	    \
-    int    	tw;					    \
-							    \
-    tpt = spans[a]; spans[a] = spans[b]; spans[b] = tpt;    \
-    tw = widths[a]; widths[a] = widths[b]; widths[b] = tw;  \
-}
-
-/* ||| I should apply the merge sort code to rectangle sorting above, and see
-   if mapping time can be improved.  But right now I've been at work 12 hours,
-   so forget it.
-*/
-
-static void QuickSortSpans(
-    DDXPointRec spans[],
-    int	    	widths[],
-    int	    	numSpans)
-{
-    int	    y;
-    int	    i, j, m;
-    DDXPointPtr    r;
-
-    /* Always called with numSpans > 1 */
-    /* Sorts only by y, doesn't bother to sort by x */
-
-    do
-    {
-	if (numSpans < 9)
-	{
-	    /* Do insertion sort */
-	    int yprev;
-
-	    yprev = spans[0].y;
-	    i = 1;
-	    do
-	    { /* while i != numSpans */
-		y = spans[i].y;
-		if (yprev > y)
-		{
-		    /* spans[i] is out of order.  Move into proper location. */
-		    DDXPointRec tpt;
-		    int	    tw, k;
-
-		    for (j = 0; y >= spans[j].y; j++) {}
-		    tpt = spans[i];
-		    tw  = widths[i];
-		    for (k = i; k != j; k--)
-		    {
-			spans[k] = spans[k-1];
-			widths[k] = widths[k-1];
-		    }
-		    spans[j] = tpt;
-		    widths[j] = tw;
-		    y = spans[i].y;
-		} /* if out of order */
-		yprev = y;
-		i++;
-	    } while (i != numSpans);
-	    return;
-	}
-
-	/* Choose partition element, stick in location 0 */
-	m = numSpans / 2;
-	if (spans[m].y > spans[0].y)		ExchangeSpans(m, 0);
-	if (spans[m].y > spans[numSpans-1].y)   ExchangeSpans(m, numSpans-1);
-	if (spans[m].y > spans[0].y)		ExchangeSpans(m, 0);
-	y = spans[0].y;
-
-        /* Partition array */
-        i = 0;
-        j = numSpans;
-        do
-	{
-	    r = &(spans[i]);
-	    do
-	    {
-		r++;
-		i++;
-            } while (i != numSpans && r->y < y);
-	    r = &(spans[j]);
-	    do
-	    {
-		r--;
-		j--;
-            } while (y < r->y);
-            if (i < j)
-		ExchangeSpans(i, j);
-        } while (i < j);
-
-        /* Move partition element back to middle */
-        ExchangeSpans(0, j);
-
-	/* Recurse */
-        if (numSpans-j-1 > 1)
-	    QuickSortSpans(&spans[j+1], &widths[j+1], numSpans-j-1);
-        numSpans = j;
-    } while (numSpans > 1);
-}
-
-#define NextBand()						    \
-{								    \
-    clipy1 = pboxBandStart->y1;					    \
-    clipy2 = pboxBandStart->y2;					    \
-    pboxBandEnd = pboxBandStart + 1;				    \
-    while (pboxBandEnd != pboxLast && pboxBandEnd->y1 == clipy1) {  \
-	pboxBandEnd++;						    \
-    }								    \
-    for (; ppt != pptLast && ppt->y < clipy1; ppt++, pwidth++) {} \
-}
-
-/*
-    Clip a list of scanlines to a region.  The caller has allocated the
-    space.  FSorted is non-zero if the scanline origins are in ascending
-    order.
-    returns the number of new, clipped scanlines.
-*/
-
-int
-miClipSpans(
-    RegionPtr	prgnDst,
-    DDXPointPtr ppt,
-    int	    	*pwidth,
-    int		nspans,
-    DDXPointPtr	pptNew,
-    int		*pwidthNew,
-    int		fSorted)
-{
-    DDXPointPtr pptLast;
-    int	*pwidthNewStart;	/* the vengeance of Xerox! */
-    int	y, x1, x2;
-    int	numRects;
-
-    good(prgnDst);
-    pptLast = ppt + nspans;
-    pwidthNewStart = pwidthNew;
-
-    if (!prgnDst->data)
-    {
-	/* Do special fast code with clip boundaries in registers(?) */
-	/* It doesn't pay much to make use of fSorted in this case, 
-	   so we lump everything together. */
-
-	int clipx1, clipx2, clipy1, clipy2;
-
-	clipx1 = prgnDst->extents.x1;
-	clipy1 = prgnDst->extents.y1;
-	clipx2 = prgnDst->extents.x2;
-	clipy2 = prgnDst->extents.y2;
-	    
-	for (; ppt != pptLast; ppt++, pwidth++)
-	{
-	    y = ppt->y;
-	    x1 = ppt->x;
-	    if (clipy1 <= y && y < clipy2)
-	    {
-		x2 = x1 + *pwidth;
-		if (x1 < clipx1)    x1 = clipx1;
-		if (x2 > clipx2)    x2 = clipx2;
-		if (x1 < x2)
-		{
-		    /* part of span in clip rectangle */
-		    pptNew->x = x1;
-		    pptNew->y = y;
-		    *pwidthNew = x2 - x1;
-		    pptNew++;
-		    pwidthNew++;
-		}
-	    }
-	} /* end for */
-
-    }
-    else if ((numRects = prgnDst->data->numRects))
-    {
-	/* Have to clip against many boxes */
-	BoxPtr pboxBandStart, pboxBandEnd;
-	BoxPtr pbox;
-	BoxPtr pboxLast;
-	int clipy1, clipy2;
-
-	/* In this case, taking advantage of sorted spans gains more than
-	   the sorting costs. */
-	if ((! fSorted) && (nspans > 1))
-	    QuickSortSpans(ppt, pwidth, nspans);
-
-	pboxBandStart = REGION_BOXPTR(prgnDst);
-	pboxLast = pboxBandStart + numRects;
-    
-	NextBand();
-
-	for (; ppt != pptLast; )
-	{
-	    y = ppt->y;
-	    if (y < clipy2)
-	    {
-		/* span is in the current band */
-		pbox = pboxBandStart;
-		x1 = ppt->x;
-		x2 = x1 + *pwidth;
-		do
-		{ /* For each box in band */
-		    int newx1, newx2;
-
-		    newx1 = x1;
-		    newx2 = x2;
-		    if (newx1 < pbox->x1)   newx1 = pbox->x1;
-		    if (newx2 > pbox->x2)   newx2 = pbox->x2;
-		    if (newx1 < newx2)
-		    {
-			/* Part of span in clip rectangle */
-			pptNew->x = newx1;
-			pptNew->y = y;
-			*pwidthNew = newx2 - newx1;
-			pptNew++;
-			pwidthNew++;
-		    }
-		    pbox++;
-		} while (pbox != pboxBandEnd);
-		ppt++;
-		pwidth++;
-	    }
-	    else
-	    {
-		/* Move to next band, adjust ppt as needed */
-		pboxBandStart = pboxBandEnd;
-		if (pboxBandStart == pboxLast)
-		    break; /* We're completely done */
-		NextBand();
-	    }
-	}
-    }
-    return (pwidthNew - pwidthNewStart);
-}
+/***********************************************************

+

+Copyright 1987, 1988, 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.

+ 

+

+Copyright 1987, 1988, 1989 by 

+Digital Equipment Corporation, Maynard, Massachusetts. 

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+******************************************************************/

+

+/* The panoramix components contained the following notice */

+/*****************************************************************

+

+Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.

+

+Permission is hereby granted, free of charge, to any person obtaining a copy

+of this software and associated documentation files (the "Software"), to deal

+in the Software without restriction, including without limitation the rights

+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

+copies of the Software.

+

+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

+DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,

+BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 Digital Equipment Corporation

+shall not be used in advertising or otherwise to promote the sale, use or other

+dealings in this Software without prior written authorization from Digital

+Equipment Corporation.

+

+******************************************************************/

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include "regionstr.h"

+#include <X11/Xprotostr.h>

+#include <X11/Xfuncproto.h>

+#include "gc.h"

+#include "mi.h"

+#include "mispans.h"

+#include <pixman.h>

+

+#undef assert

+#ifdef REGION_DEBUG

+#define assert(expr) { \

+            CARD32 *foo = NULL; \

+            if (!(expr)) { \

+                ErrorF("Assertion failed file %s, line %d: %s\n", \

+                       __FILE__, __LINE__, #expr); \

+                *foo = 0xdeadbeef; /* to get a backtrace */ \

+            } \

+        }

+#else

+#define assert(expr)

+#endif

+

+#define good(reg) assert(miValidRegion(reg))

+

+/*

+ * The functions in this file implement the Region abstraction used extensively

+ * throughout the X11 sample server. A Region is simply a set of disjoint

+ * (non-overlapping) rectangles, plus an "extent" rectangle which is the

+ * smallest single rectangle that contains all the non-overlapping rectangles.

+ *

+ * A Region is implemented as a "y-x-banded" array of rectangles.  This array

+ * imposes two degrees of order.  First, all rectangles are sorted by top side

+ * y coordinate first (y1), and then by left side x coordinate (x1).

+ *

+ * Furthermore, the rectangles are grouped into "bands".  Each rectangle in a

+ * band has the same top y coordinate (y1), and each has the same bottom y

+ * coordinate (y2).  Thus all rectangles in a band differ only in their left

+ * and right side (x1 and x2).  Bands are implicit in the array of rectangles:

+ * there is no separate list of band start pointers.

+ *

+ * The y-x band representation does not minimize rectangles.  In particular,

+ * if a rectangle vertically crosses a band (the rectangle has scanlines in 

+ * the y1 to y2 area spanned by the band), then the rectangle may be broken

+ * down into two or more smaller rectangles stacked one atop the other. 

+ *

+ *  -----------				    -----------

+ *  |         |				    |         |		    band 0

+ *  |         |  --------		    -----------  --------

+ *  |         |  |      |  in y-x banded    |         |  |      |   band 1

+ *  |         |  |      |  form is	    |         |  |      |

+ *  -----------  |      |		    -----------  --------

+ *               |      |				 |      |   band 2

+ *               --------				 --------

+ *

+ * An added constraint on the rectangles is that they must cover as much

+ * horizontal area as possible: no two rectangles within a band are allowed

+ * to touch.

+ *

+ * Whenever possible, bands will be merged together to cover a greater vertical

+ * distance (and thus reduce the number of rectangles). Two bands can be merged

+ * only if the bottom of one touches the top of the other and they have

+ * rectangles in the same places (of the same width, of course).

+ *

+ * Adam de Boor wrote most of the original region code.  Joel McCormack

+ * substantially modified or rewrote most of the core arithmetic routines,

+ * and added miRegionValidate in order to support several speed improvements

+ * to miValidateTree.  Bob Scheifler changed the representation to be more

+ * compact when empty or a single rectangle, and did a bunch of gratuitous

+ * reformatting.

+ */

+

+/*  true iff two Boxes overlap */

+#define EXTENTCHECK(r1,r2) \

+      (!( ((r1)->x2 <= (r2)->x1)  || \

+          ((r1)->x1 >= (r2)->x2)  || \

+          ((r1)->y2 <= (r2)->y1)  || \

+          ((r1)->y1 >= (r2)->y2) ) )

+

+/* true iff (x,y) is in Box */

+#define INBOX(r,x,y) \

+      ( ((r)->x2 >  x) && \

+        ((r)->x1 <= x) && \

+        ((r)->y2 >  y) && \

+        ((r)->y1 <= y) )

+

+/* true iff Box r1 contains Box r2 */

+#define SUBSUMES(r1,r2) \

+      ( ((r1)->x1 <= (r2)->x1) && \

+        ((r1)->x2 >= (r2)->x2) && \

+        ((r1)->y1 <= (r2)->y1) && \

+        ((r1)->y2 >= (r2)->y2) )

+

+#define xallocData(n) malloc(REGION_SZOF(n))

+#define xfreeData(reg) if ((reg)->data && (reg)->data->size) free((reg)->data)

+

+#define RECTALLOC_BAIL(pReg,n,bail) \

+if (!(pReg)->data || (((pReg)->data->numRects + (n)) > (pReg)->data->size)) \

+    if (!miRectAlloc(pReg, n)) { goto bail; }

+

+#define RECTALLOC(pReg,n) \

+if (!(pReg)->data || (((pReg)->data->numRects + (n)) > (pReg)->data->size)) \

+    if (!miRectAlloc(pReg, n)) { return FALSE; }

+

+#define ADDRECT(pNextRect,nx1,ny1,nx2,ny2)	\

+{						\

+    pNextRect->x1 = nx1;			\

+    pNextRect->y1 = ny1;			\

+    pNextRect->x2 = nx2;			\

+    pNextRect->y2 = ny2;			\

+    pNextRect++;				\

+}

+

+#define NEWRECT(pReg,pNextRect,nx1,ny1,nx2,ny2)			\

+{									\

+    if (!(pReg)->data || ((pReg)->data->numRects == (pReg)->data->size))\

+    {									\

+	if (!miRectAlloc(pReg, 1))					\

+	    return FALSE;						\

+	pNextRect = REGION_TOP(pReg);					\

+    }									\

+    ADDRECT(pNextRect,nx1,ny1,nx2,ny2);					\

+    pReg->data->numRects++;						\

+    assert(pReg->data->numRects<=pReg->data->size);			\

+}

+

+

+#define DOWNSIZE(reg,numRects)						 \

+if (((numRects) < ((reg)->data->size >> 1)) && ((reg)->data->size > 50)) \

+{									 \

+    RegDataPtr NewData;							 \

+    NewData = (RegDataPtr)realloc((reg)->data, REGION_SZOF(numRects));	 \

+    if (NewData)							 \

+    {									 \

+	NewData->size = (numRects);					 \

+	(reg)->data = NewData;						 \

+    }									 \

+}

+

+

+BoxRec miEmptyBox = {0, 0, 0, 0};

+RegDataRec miEmptyData = {0, 0};

+

+RegDataRec  miBrokenData = {0, 0};

+static RegionRec   miBrokenRegion = { { 0, 0, 0, 0 }, &miBrokenData };

+

+void

+InitRegions (void)

+{

+    pixman_region_set_static_pointers (&miEmptyBox, &miEmptyData, &miBrokenData);

+}

+

+/*****************************************************************

+ *   RegionCreate(rect, size)

+ *     This routine does a simple malloc to make a structure of

+ *     REGION of "size" number of rectangles.

+ *****************************************************************/

+

+RegionPtr

+miRegionCreate(BoxPtr rect, int size)

+{

+    RegionPtr pReg;

+   

+    pReg = (RegionPtr)malloc(sizeof(RegionRec));

+    if (!pReg)

+	return &miBrokenRegion;

+

+    miRegionInit (pReg, rect, size);

+    

+    return(pReg);

+}

+

+void

+miRegionDestroy(RegionPtr pReg)

+{

+    pixman_region_fini (pReg);

+    if (pReg != &miBrokenRegion)

+	free(pReg);

+}

+

+void

+miPrintRegion(RegionPtr rgn)

+{

+    int num, size;

+    int i;

+    BoxPtr rects;

+

+    num = REGION_NUM_RECTS(rgn);

+    size = REGION_SIZE(rgn);

+    rects = REGION_RECTS(rgn);

+    ErrorF("[mi] num: %d size: %d\n", num, size);

+    ErrorF("[mi] extents: %d %d %d %d\n",

+	   rgn->extents.x1, rgn->extents.y1, rgn->extents.x2, rgn->extents.y2);

+    for (i = 0; i < num; i++)

+      ErrorF("[mi] %d %d %d %d \n",

+	     rects[i].x1, rects[i].y1, rects[i].x2, rects[i].y2);

+    ErrorF("[mi] \n");

+}

+

+Bool

+miRegionEqual(RegionPtr reg1, RegionPtr reg2)

+{

+    return pixman_region_equal (reg1, reg2);

+}

+

+#ifdef DEBUG

+Bool

+miValidRegion(RegionPtr reg)

+{

+    int i, numRects;

+    

+    if ((reg->extents.x1 > reg->extents.x2) ||

+	(reg->extents.y1 > reg->extents.y2))

+	return FALSE;

+    numRects = REGION_NUM_RECTS(reg);

+    if (!numRects)

+	return ((reg->extents.x1 == reg->extents.x2) &&

+		(reg->extents.y1 == reg->extents.y2) &&

+		(reg->data->size || (reg->data == &miEmptyData)));

+    else if (numRects == 1)

+	return (!reg->data);

+    else

+    {

+	BoxPtr pboxP, pboxN;

+	BoxRec box;

+	

+	pboxP = REGION_RECTS(reg);

+	box = *pboxP;

+	box.y2 = pboxP[numRects-1].y2;

+	pboxN = pboxP + 1;

+	for (i = numRects; --i > 0; pboxP++, pboxN++)

+	{

+	    if ((pboxN->x1 >= pboxN->x2) ||

+		(pboxN->y1 >= pboxN->y2))

+		return FALSE;

+	    if (pboxN->x1 < box.x1)

+		box.x1 = pboxN->x1;

+	    if (pboxN->x2 > box.x2)

+		box.x2 = pboxN->x2;

+	    if ((pboxN->y1 < pboxP->y1) ||

+		((pboxN->y1 == pboxP->y1) &&

+		 ((pboxN->x1 < pboxP->x2) || (pboxN->y2 != pboxP->y2))))

+		return FALSE;

+	}

+	return ((box.x1 == reg->extents.x1) &&

+		(box.x2 == reg->extents.x2) &&

+		(box.y1 == reg->extents.y1) &&

+		(box.y2 == reg->extents.y2));

+    }

+}

+#endif /* DEBUG */

+

+/*****************************************************************

+ *   RegionInit(pReg, rect, size)

+ *     Outer region rect is statically allocated.

+ *****************************************************************/

+

+void

+miRegionInit(RegionPtr pReg, BoxPtr rect, int size)

+{

+    if (rect)

+	pixman_region_init_with_extents (pReg, rect);

+    else

+	pixman_region_init (pReg);

+}

+

+void

+miRegionUninit(RegionPtr pReg)

+{

+    pixman_region_fini (pReg);

+}

+

+Bool

+miRegionBreak (RegionPtr pReg)

+{

+    xfreeData (pReg);

+    pReg->extents = miEmptyBox;

+    pReg->data = &miBrokenData;

+    return FALSE;

+}

+

+Bool

+miRectAlloc(RegionPtr pRgn, int n)

+{

+    RegDataPtr	data;

+    

+    if (!pRgn->data)

+    {

+	n++;

+	pRgn->data = xallocData(n);

+	if (!pRgn->data)

+	    return miRegionBreak (pRgn);

+	pRgn->data->numRects = 1;

+	*REGION_BOXPTR(pRgn) = pRgn->extents;

+    }

+    else if (!pRgn->data->size)

+    {

+	pRgn->data = xallocData(n);

+	if (!pRgn->data)

+	    return miRegionBreak (pRgn);

+	pRgn->data->numRects = 0;

+    }

+    else

+    {

+	if (n == 1)

+	{

+	    n = pRgn->data->numRects;

+	    if (n > 500) /* XXX pick numbers out of a hat */

+		n = 250;

+	}

+	n += pRgn->data->numRects;

+	data = (RegDataPtr)realloc(pRgn->data, REGION_SZOF(n));

+	if (!data)

+	    return miRegionBreak (pRgn);

+	pRgn->data = data;

+    }

+    pRgn->data->size = n;

+    return TRUE;

+}

+

+Bool

+miRegionCopy(RegionPtr dst, RegionPtr src)

+{

+    return pixman_region_copy (dst, src);

+}

+

+/*======================================================================

+ *	    Generic Region Operator

+ *====================================================================*/

+

+/*-

+ *-----------------------------------------------------------------------

+ * miCoalesce --

+ *	Attempt to merge the boxes in the current band with those in the

+ *	previous one.  We are guaranteed that the current band extends to

+ *      the end of the rects array.  Used only by miRegionOp.

+ *

+ * Results:

+ *	The new index for the previous band.

+ *

+ * Side Effects:

+ *	If coalescing takes place:

+ *	    - rectangles in the previous band will have their y2 fields

+ *	      altered.

+ *	    - pReg->data->numRects will be decreased.

+ *

+ *-----------------------------------------------------------------------

+ */

+_X_INLINE static int

+miCoalesce (

+    RegionPtr	pReg,	    	/* Region to coalesce		     */

+    int	    	  	prevStart,  	/* Index of start of previous band   */

+    int	    	  	curStart)   	/* Index of start of current band    */

+{

+    BoxPtr	pPrevBox;   	/* Current box in previous band	     */

+    BoxPtr	pCurBox;    	/* Current box in current band       */

+    int  	numRects;	/* Number rectangles in both bands   */

+    int		y2;		/* Bottom of current band	     */

+    /*

+     * Figure out how many rectangles are in the band.

+     */

+    numRects = curStart - prevStart;

+    assert(numRects == pReg->data->numRects - curStart);

+

+    if (!numRects) return curStart;

+

+    /*

+     * The bands may only be coalesced if the bottom of the previous

+     * matches the top scanline of the current.

+     */

+    pPrevBox = REGION_BOX(pReg, prevStart);

+    pCurBox = REGION_BOX(pReg, curStart);

+    if (pPrevBox->y2 != pCurBox->y1) return curStart;

+

+    /*

+     * Make sure the bands have boxes in the same places. This

+     * assumes that boxes have been added in such a way that they

+     * cover the most area possible. I.e. two boxes in a band must

+     * have some horizontal space between them.

+     */

+    y2 = pCurBox->y2;

+

+    do {

+	if ((pPrevBox->x1 != pCurBox->x1) || (pPrevBox->x2 != pCurBox->x2)) {

+	    return (curStart);

+	}

+	pPrevBox++;

+	pCurBox++;

+	numRects--;

+    } while (numRects);

+

+    /*

+     * The bands may be merged, so set the bottom y of each box

+     * in the previous band to the bottom y of the current band.

+     */

+    numRects = curStart - prevStart;

+    pReg->data->numRects -= numRects;

+    do {

+	pPrevBox--;

+	pPrevBox->y2 = y2;

+	numRects--;

+    } while (numRects);

+    return prevStart;

+}

+

+

+/* Quicky macro to avoid trivial reject procedure calls to miCoalesce */

+

+#define Coalesce(newReg, prevBand, curBand)				\

+    if (curBand - prevBand == newReg->data->numRects - curBand) {	\

+	prevBand = miCoalesce(newReg, prevBand, curBand);		\

+    } else {								\

+	prevBand = curBand;						\

+    }

+

+/*-

+ *-----------------------------------------------------------------------

+ * miAppendNonO --

+ *	Handle a non-overlapping band for the union and subtract operations.

+ *      Just adds the (top/bottom-clipped) rectangles into the region.

+ *      Doesn't have to check for subsumption or anything.

+ *

+ * Results:

+ *	None.

+ *

+ * Side Effects:

+ *	pReg->data->numRects is incremented and the rectangles overwritten

+ *	with the rectangles we're passed.

+ *

+ *-----------------------------------------------------------------------

+ */

+

+_X_INLINE static Bool

+miAppendNonO (

+    RegionPtr	pReg,

+    BoxPtr	r,

+    BoxPtr  	rEnd,

+    int  	y1,

+    int  	y2)

+{

+    BoxPtr	pNextRect;

+    int		newRects;

+

+    newRects = rEnd - r;

+

+    assert(y1 < y2);

+    assert(newRects != 0);

+

+    /* Make sure we have enough space for all rectangles to be added */

+    RECTALLOC(pReg, newRects);

+    pNextRect = REGION_TOP(pReg);

+    pReg->data->numRects += newRects;

+    do {

+	assert(r->x1 < r->x2);

+	ADDRECT(pNextRect, r->x1, y1, r->x2, y2);

+	r++;

+    } while (r != rEnd);

+

+    return TRUE;

+}

+

+#define FindBand(r, rBandEnd, rEnd, ry1)		    \

+{							    \

+    ry1 = r->y1;					    \

+    rBandEnd = r+1;					    \

+    while ((rBandEnd != rEnd) && (rBandEnd->y1 == ry1)) {   \

+	rBandEnd++;					    \

+    }							    \

+}

+

+#define	AppendRegions(newReg, r, rEnd)					\

+{									\

+    int newRects;							\

+    if ((newRects = rEnd - r)) {					\

+	RECTALLOC(newReg, newRects);					\

+	memmove((char *)REGION_TOP(newReg),(char *)r, 			\

+              newRects * sizeof(BoxRec));				\

+	newReg->data->numRects += newRects;				\

+    }									\

+}

+

+/*-

+ *-----------------------------------------------------------------------

+ * miRegionOp --

+ *	Apply an operation to two regions. Called by miUnion, miInverse,

+ *	miSubtract, miIntersect....  Both regions MUST have at least one

+ *      rectangle, and cannot be the same object.

+ *

+ * Results:

+ *	TRUE if successful.

+ *

+ * Side Effects:

+ *	The new region is overwritten.

+ *	pOverlap set to TRUE if overlapFunc ever returns TRUE.

+ *

+ * Notes:

+ *	The idea behind this function is to view the two regions as sets.

+ *	Together they cover a rectangle of area that this function divides

+ *	into horizontal bands where points are covered only by one region

+ *	or by both. For the first case, the nonOverlapFunc is called with

+ *	each the band and the band's upper and lower extents. For the

+ *	second, the overlapFunc is called to process the entire band. It

+ *	is responsible for clipping the rectangles in the band, though

+ *	this function provides the boundaries.

+ *	At the end of each band, the new region is coalesced, if possible,

+ *	to reduce the number of rectangles in the region.

+ *

+ *-----------------------------------------------------------------------

+ */

+

+typedef Bool (*OverlapProcPtr)(

+    RegionPtr	pReg,

+    BoxPtr	r1,

+    BoxPtr   	r1End,

+    BoxPtr	r2,

+    BoxPtr   	r2End,

+    short    	y1,

+    short    	y2,

+    Bool	*pOverlap);

+

+static Bool

+miRegionOp(

+    RegionPtr       newReg,		    /* Place to store result	     */

+    RegionPtr       reg1,		    /* First region in operation     */

+    RegionPtr       reg2,		    /* 2d region in operation        */

+    OverlapProcPtr  overlapFunc,            /* Function to call for over-

+					     * lapping bands		     */

+    Bool	    appendNon1,		    /* Append non-overlapping bands  */

+					    /* in region 1 ? */

+    Bool	    appendNon2,		    /* Append non-overlapping bands  */

+					    /* in region 2 ? */

+    Bool	    *pOverlap)

+{

+    BoxPtr 	r1;		    /* Pointer into first region     */

+    BoxPtr 	r2;		    /* Pointer into 2d region	     */

+    BoxPtr	r1End;		    /* End of 1st region	     */

+    BoxPtr	r2End;		    /* End of 2d region		     */

+    short	ybot;		    /* Bottom of intersection	     */

+    short	ytop;		    /* Top of intersection	     */

+    RegDataPtr	oldData;	    /* Old data for newReg	     */

+    int		prevBand;	    /* Index of start of

+				     * previous band in newReg       */

+    int		curBand;	    /* Index of start of current

+				     * band in newReg		     */

+    BoxPtr  	r1BandEnd;	    /* End of current band in r1     */

+    BoxPtr  	r2BandEnd;	    /* End of current band in r2     */

+    short   	top;		    /* Top of non-overlapping band   */

+    short   	bot;	    	    /* Bottom of non-overlapping band*/

+    int     	r1y1;	    	    /* Temps for r1->y1 and r2->y1   */

+    int     	r2y1;

+    int	    	newSize;

+    int	    	numRects;

+

+    /*

+     * Break any region computed from a broken region

+     */

+    if (REGION_NAR (reg1) || REGION_NAR(reg2))

+	return miRegionBreak (newReg);

+    

+    /*

+     * Initialization:

+     *	set r1, r2, r1End and r2End appropriately, save the rectangles

+     * of the destination region until the end in case it's one of

+     * the two source regions, then mark the "new" region empty, allocating

+     * another array of rectangles for it to use.

+     */

+

+    r1 = REGION_RECTS(reg1);

+    newSize = REGION_NUM_RECTS(reg1);

+    r1End = r1 + newSize;

+    numRects = REGION_NUM_RECTS(reg2);

+    r2 = REGION_RECTS(reg2);

+    r2End = r2 + numRects;

+    assert(r1 != r1End);

+    assert(r2 != r2End);

+

+    oldData = NULL;

+    if (((newReg == reg1) && (newSize > 1)) ||

+	((newReg == reg2) && (numRects > 1)))

+    {

+	oldData = newReg->data;

+	newReg->data = &miEmptyData;

+    }

+    /* guess at new size */

+    if (numRects > newSize)

+	newSize = numRects;

+    newSize <<= 1;

+    if (!newReg->data)

+	newReg->data = &miEmptyData;

+    else if (newReg->data->size)

+	newReg->data->numRects = 0;

+    if (newSize > newReg->data->size)

+	if (!miRectAlloc(newReg, newSize))

+	    return FALSE;

+

+    /*

+     * Initialize ybot.

+     * In the upcoming loop, ybot and ytop serve different functions depending

+     * on whether the band being handled is an overlapping or non-overlapping

+     * band.

+     * 	In the case of a non-overlapping band (only one of the regions

+     * has points in the band), ybot is the bottom of the most recent

+     * intersection and thus clips the top of the rectangles in that band.

+     * ytop is the top of the next intersection between the two regions and

+     * serves to clip the bottom of the rectangles in the current band.

+     *	For an overlapping band (where the two regions intersect), ytop clips

+     * the top of the rectangles of both regions and ybot clips the bottoms.

+     */

+

+    ybot = min(r1->y1, r2->y1);

+    

+    /*

+     * prevBand serves to mark the start of the previous band so rectangles

+     * can be coalesced into larger rectangles. qv. miCoalesce, above.

+     * In the beginning, there is no previous band, so prevBand == curBand

+     * (curBand is set later on, of course, but the first band will always

+     * start at index 0). prevBand and curBand must be indices because of

+     * the possible expansion, and resultant moving, of the new region's

+     * array of rectangles.

+     */

+    prevBand = 0;

+    

+    do {

+	/*

+	 * This algorithm proceeds one source-band (as opposed to a

+	 * destination band, which is determined by where the two regions

+	 * intersect) at a time. r1BandEnd and r2BandEnd serve to mark the

+	 * rectangle after the last one in the current band for their

+	 * respective regions.

+	 */

+	assert(r1 != r1End);

+	assert(r2 != r2End);

+    

+	FindBand(r1, r1BandEnd, r1End, r1y1);

+	FindBand(r2, r2BandEnd, r2End, r2y1);

+

+	/*

+	 * First handle the band that doesn't intersect, if any.

+	 *

+	 * Note that attention is restricted to one band in the

+	 * non-intersecting region at once, so if a region has n

+	 * bands between the current position and the next place it overlaps

+	 * the other, this entire loop will be passed through n times.

+	 */

+	if (r1y1 < r2y1) {

+	    if (appendNon1) {

+		top = max(r1y1, ybot);

+		bot = min(r1->y2, r2y1);

+		if (top != bot)	{

+		    curBand = newReg->data->numRects;

+		    miAppendNonO(newReg, r1, r1BandEnd, top, bot);

+		    Coalesce(newReg, prevBand, curBand);

+		}

+	    }

+	    ytop = r2y1;

+	} else if (r2y1 < r1y1) {

+	    if (appendNon2) {

+		top = max(r2y1, ybot);

+		bot = min(r2->y2, r1y1);

+		if (top != bot) {

+		    curBand = newReg->data->numRects;

+		    miAppendNonO(newReg, r2, r2BandEnd, top, bot);

+		    Coalesce(newReg, prevBand, curBand);

+		}

+	    }

+	    ytop = r1y1;

+	} else {

+	    ytop = r1y1;

+	}

+

+	/*

+	 * Now see if we've hit an intersecting band. The two bands only

+	 * intersect if ybot > ytop

+	 */

+	ybot = min(r1->y2, r2->y2);

+	if (ybot > ytop) {

+	    curBand = newReg->data->numRects;

+	    (* overlapFunc)(newReg, r1, r1BandEnd, r2, r2BandEnd, ytop, ybot,

+			    pOverlap);

+	    Coalesce(newReg, prevBand, curBand);

+	}

+

+	/*

+	 * If we've finished with a band (y2 == ybot) we skip forward

+	 * in the region to the next band.

+	 */

+	if (r1->y2 == ybot) r1 = r1BandEnd;

+	if (r2->y2 == ybot) r2 = r2BandEnd;

+

+    } while (r1 != r1End && r2 != r2End);

+

+    /*

+     * Deal with whichever region (if any) still has rectangles left.

+     *

+     * We only need to worry about banding and coalescing for the very first

+     * band left.  After that, we can just group all remaining boxes,

+     * regardless of how many bands, into one final append to the list.

+     */

+

+    if ((r1 != r1End) && appendNon1) {

+	/* Do first nonOverlap1Func call, which may be able to coalesce */

+	FindBand(r1, r1BandEnd, r1End, r1y1);

+	curBand = newReg->data->numRects;

+	miAppendNonO(newReg, r1, r1BandEnd, max(r1y1, ybot), r1->y2);

+	Coalesce(newReg, prevBand, curBand);

+	/* Just append the rest of the boxes  */

+	AppendRegions(newReg, r1BandEnd, r1End);

+

+    } else if ((r2 != r2End) && appendNon2) {

+	/* Do first nonOverlap2Func call, which may be able to coalesce */

+	FindBand(r2, r2BandEnd, r2End, r2y1);

+	curBand = newReg->data->numRects;

+	miAppendNonO(newReg, r2, r2BandEnd, max(r2y1, ybot), r2->y2);

+	Coalesce(newReg, prevBand, curBand);

+	/* Append rest of boxes */

+	AppendRegions(newReg, r2BandEnd, r2End);

+    }

+

+    if (oldData)

+	free(oldData);

+

+    if (!(numRects = newReg->data->numRects))

+    {

+	xfreeData(newReg);

+	newReg->data = &miEmptyData;

+    }

+    else if (numRects == 1)

+    {

+	newReg->extents = *REGION_BOXPTR(newReg);

+	xfreeData(newReg);

+	newReg->data = NULL;

+    }

+    else

+    {

+	DOWNSIZE(newReg, numRects);

+    }

+

+    return TRUE;

+}

+

+/*-

+ *-----------------------------------------------------------------------

+ * miSetExtents --

+ *	Reset the extents of a region to what they should be. Called by

+ *	miSubtract and miIntersect as they can't figure it out along the

+ *	way or do so easily, as miUnion can.

+ *

+ * Results:

+ *	None.

+ *

+ * Side Effects:

+ *	The region's 'extents' structure is overwritten.

+ *

+ *-----------------------------------------------------------------------

+ */

+static void

+miSetExtents (RegionPtr pReg)

+{

+    BoxPtr pBox, pBoxEnd;

+

+    if (!pReg->data)

+	return;

+    if (!pReg->data->size)

+    {

+	pReg->extents.x2 = pReg->extents.x1;

+	pReg->extents.y2 = pReg->extents.y1;

+	return;

+    }

+

+    pBox = REGION_BOXPTR(pReg);

+    pBoxEnd = REGION_END(pReg);

+

+    /*

+     * Since pBox is the first rectangle in the region, it must have the

+     * smallest y1 and since pBoxEnd is the last rectangle in the region,

+     * it must have the largest y2, because of banding. Initialize x1 and

+     * x2 from  pBox and pBoxEnd, resp., as good things to initialize them

+     * to...

+     */

+    pReg->extents.x1 = pBox->x1;

+    pReg->extents.y1 = pBox->y1;

+    pReg->extents.x2 = pBoxEnd->x2;

+    pReg->extents.y2 = pBoxEnd->y2;

+

+    assert(pReg->extents.y1 < pReg->extents.y2);

+    while (pBox <= pBoxEnd) {

+	if (pBox->x1 < pReg->extents.x1)

+	    pReg->extents.x1 = pBox->x1;

+	if (pBox->x2 > pReg->extents.x2)

+	    pReg->extents.x2 = pBox->x2;

+	pBox++;

+    };

+

+    assert(pReg->extents.x1 < pReg->extents.x2);

+}

+

+/*======================================================================

+ *	    Region Intersection

+ *====================================================================*/

+/*-

+ *-----------------------------------------------------------------------

+ * miIntersectO --

+ *	Handle an overlapping band for miIntersect.

+ *

+ * Results:

+ *	TRUE if successful.

+ *

+ * Side Effects:

+ *	Rectangles may be added to the region.

+ *

+ *-----------------------------------------------------------------------

+ */

+/*ARGSUSED*/

+Bool

+miIntersect(

+    RegionPtr	newReg,     /* destination Region */

+    RegionPtr	reg1,

+    RegionPtr	reg2        /* source regions     */

+    )

+{

+    return pixman_region_intersect (newReg, reg1, reg2);

+}

+

+#define MERGERECT(r)						\

+{								\

+    if (r->x1 <= x2) {						\

+	/* Merge with current rectangle */			\

+	if (r->x1 < x2) *pOverlap = TRUE;				\

+	if (x2 < r->x2) x2 = r->x2;				\

+    } else {							\

+	/* Add current rectangle, start new one */		\

+	NEWRECT(pReg, pNextRect, x1, y1, x2, y2);		\

+	x1 = r->x1;						\

+	x2 = r->x2;						\

+    }								\

+    r++;							\

+}

+

+/*======================================================================

+ *	    Region Union

+ *====================================================================*/

+

+/*-

+ *-----------------------------------------------------------------------

+ * miUnionO --

+ *	Handle an overlapping band for the union operation. Picks the

+ *	left-most rectangle each time and merges it into the region.

+ *

+ * Results:

+ *	TRUE if successful.

+ *

+ * Side Effects:

+ *	pReg is overwritten.

+ *	pOverlap is set to TRUE if any boxes overlap.

+ *

+ *-----------------------------------------------------------------------

+ */

+static Bool

+miUnionO (

+    RegionPtr	pReg,

+    BoxPtr	r1,

+    BoxPtr  	r1End,

+    BoxPtr	r2,

+    BoxPtr  	r2End,

+    short	y1,

+    short	y2,

+    Bool	*pOverlap)

+{

+    BoxPtr     pNextRect;

+    int        x1;     /* left and right side of current union */

+    int        x2;

+

+    assert (y1 < y2);

+    assert(r1 != r1End && r2 != r2End);

+

+    pNextRect = REGION_TOP(pReg);

+

+    /* Start off current rectangle */

+    if (r1->x1 < r2->x1)

+    {

+	x1 = r1->x1;

+	x2 = r1->x2;

+	r1++;

+    }

+    else

+    {

+	x1 = r2->x1;

+	x2 = r2->x2;

+	r2++;

+    }

+    while (r1 != r1End && r2 != r2End)

+    {

+	if (r1->x1 < r2->x1) MERGERECT(r1) else MERGERECT(r2);

+    }

+

+    /* Finish off whoever (if any) is left */

+    if (r1 != r1End)

+    {

+	do

+	{

+	    MERGERECT(r1);

+	} while (r1 != r1End);

+    }

+    else if (r2 != r2End)

+    {

+	do

+	{

+	    MERGERECT(r2);

+	} while (r2 != r2End);

+    }

+    

+    /* Add current rectangle */

+    NEWRECT(pReg, pNextRect, x1, y1, x2, y2);

+

+    return TRUE;

+}

+

+Bool

+miUnion(

+    RegionPtr	newReg,          /* destination Region */

+    RegionPtr	reg1,

+    RegionPtr	reg2             /* source regions     */

+    )

+{

+    return pixman_region_union (newReg, reg1, reg2);

+}

+

+/*======================================================================

+ *	    Batch Rectangle Union

+ *====================================================================*/

+

+/*-

+ *-----------------------------------------------------------------------

+ * miRegionAppend --

+ * 

+ *      "Append" the rgn rectangles onto the end of dstrgn, maintaining

+ *      knowledge of YX-banding when it's easy.  Otherwise, dstrgn just

+ *      becomes a non-y-x-banded random collection of rectangles, and not

+ *      yet a true region.  After a sequence of appends, the caller must

+ *      call miRegionValidate to ensure that a valid region is constructed.

+ *

+ * Results:

+ *	TRUE if successful.

+ *

+ * Side Effects:

+ *      dstrgn is modified if rgn has rectangles.

+ *

+ */

+Bool

+miRegionAppend(RegionPtr dstrgn, RegionPtr rgn)

+{

+    int numRects, dnumRects, size;

+    BoxPtr new, old;

+    Bool prepend;

+

+    if (REGION_NAR(rgn))

+	return miRegionBreak (dstrgn);

+    

+    if (!rgn->data && (dstrgn->data == &miEmptyData))

+    {

+	dstrgn->extents = rgn->extents;

+	dstrgn->data = NULL;

+	return TRUE;

+    }

+

+    numRects = REGION_NUM_RECTS(rgn);

+    if (!numRects)

+	return TRUE;

+    prepend = FALSE;

+    size = numRects;

+    dnumRects = REGION_NUM_RECTS(dstrgn);

+    if (!dnumRects && (size < 200))

+	size = 200; /* XXX pick numbers out of a hat */

+    RECTALLOC(dstrgn, size);

+    old = REGION_RECTS(rgn);

+    if (!dnumRects)

+	dstrgn->extents = rgn->extents;

+    else if (dstrgn->extents.x2 > dstrgn->extents.x1)

+    {

+	BoxPtr first, last;

+

+	first = old;

+	last = REGION_BOXPTR(dstrgn) + (dnumRects - 1);

+	if ((first->y1 > last->y2) ||

+	    ((first->y1 == last->y1) && (first->y2 == last->y2) &&

+	     (first->x1 > last->x2)))

+	{

+	    if (rgn->extents.x1 < dstrgn->extents.x1)

+		dstrgn->extents.x1 = rgn->extents.x1;

+	    if (rgn->extents.x2 > dstrgn->extents.x2)

+		dstrgn->extents.x2 = rgn->extents.x2;

+	    dstrgn->extents.y2 = rgn->extents.y2;

+	}

+	else

+	{

+	    first = REGION_BOXPTR(dstrgn);

+	    last = old + (numRects - 1);

+	    if ((first->y1 > last->y2) ||

+		((first->y1 == last->y1) && (first->y2 == last->y2) &&

+		 (first->x1 > last->x2)))

+	    {

+		prepend = TRUE;

+		if (rgn->extents.x1 < dstrgn->extents.x1)

+		    dstrgn->extents.x1 = rgn->extents.x1;

+		if (rgn->extents.x2 > dstrgn->extents.x2)

+		    dstrgn->extents.x2 = rgn->extents.x2;

+		dstrgn->extents.y1 = rgn->extents.y1;

+	    }

+	    else

+		dstrgn->extents.x2 = dstrgn->extents.x1;

+	}

+    }

+    if (prepend)

+    {

+	new = REGION_BOX(dstrgn, numRects);

+	if (dnumRects == 1)

+	    *new = *REGION_BOXPTR(dstrgn);

+	else

+	    memmove((char *)new,(char *)REGION_BOXPTR(dstrgn), 

+		  dnumRects * sizeof(BoxRec));

+	new = REGION_BOXPTR(dstrgn);

+    }

+    else

+	new = REGION_BOXPTR(dstrgn) + dnumRects;

+    if (numRects == 1)

+	*new = *old;

+    else

+	memmove((char *)new, (char *)old, numRects * sizeof(BoxRec));

+    dstrgn->data->numRects += numRects;

+    return TRUE;

+}

+

+   

+#define ExchangeRects(a, b) \

+{			    \

+    BoxRec     t;	    \

+    t = rects[a];	    \

+    rects[a] = rects[b];    \

+    rects[b] = t;	    \

+}

+

+static void

+QuickSortRects(

+    BoxRec     rects[],

+    int        numRects)

+{

+    int	y1;

+    int	x1;

+    int        i, j;

+    BoxPtr     r;

+

+    /* Always called with numRects > 1 */

+

+    do

+    {

+	if (numRects == 2)

+	{

+	    if (rects[0].y1 > rects[1].y1 ||

+		    (rects[0].y1 == rects[1].y1 && rects[0].x1 > rects[1].x1))

+		ExchangeRects(0, 1);

+	    return;

+	}

+

+	/* Choose partition element, stick in location 0 */

+        ExchangeRects(0, numRects >> 1);

+	y1 = rects[0].y1;

+	x1 = rects[0].x1;

+

+        /* Partition array */

+        i = 0;

+        j = numRects;

+        do

+	{

+	    r = &(rects[i]);

+	    do

+	    {

+		r++;

+		i++;

+            } while (i != numRects &&

+		     (r->y1 < y1 || (r->y1 == y1 && r->x1 < x1)));

+	    r = &(rects[j]);

+	    do

+	    {

+		r--;

+		j--;

+            } while (y1 < r->y1 || (y1 == r->y1 && x1 < r->x1));

+            if (i < j)

+		ExchangeRects(i, j);

+        } while (i < j);

+

+        /* Move partition element back to middle */

+        ExchangeRects(0, j);

+

+	/* Recurse */

+        if (numRects-j-1 > 1)

+	    QuickSortRects(&rects[j+1], numRects-j-1);

+        numRects = j;

+    } while (numRects > 1);

+}

+

+/*-

+ *-----------------------------------------------------------------------

+ * miRegionValidate --

+ * 

+ *      Take a ``region'' which is a non-y-x-banded random collection of

+ *      rectangles, and compute a nice region which is the union of all the

+ *      rectangles.

+ *

+ * Results:

+ *	TRUE if successful.

+ *

+ * Side Effects:

+ *      The passed-in ``region'' may be modified.

+ *	pOverlap set to TRUE if any retangles overlapped, else FALSE;

+ *

+ * Strategy:

+ *      Step 1. Sort the rectangles into ascending order with primary key y1

+ *		and secondary key x1.

+ *

+ *      Step 2. Split the rectangles into the minimum number of proper y-x

+ *		banded regions.  This may require horizontally merging

+ *		rectangles, and vertically coalescing bands.  With any luck,

+ *		this step in an identity tranformation (ala the Box widget),

+ *		or a coalescing into 1 box (ala Menus).

+ *

+ *	Step 3. Merge the separate regions down to a single region by calling

+ *		miUnion.  Maximize the work each miUnion call does by using

+ *		a binary merge.

+ *

+ *-----------------------------------------------------------------------

+ */

+

+Bool

+miRegionValidate(RegionPtr badreg, Bool *pOverlap)

+{

+    /* Descriptor for regions under construction  in Step 2. */

+    typedef struct {

+	RegionRec   reg;

+	int	    prevBand;

+	int	    curBand;

+    } RegionInfo;

+

+    int	numRects;   /* Original numRects for badreg	    */

+    RegionInfo *ri;	    /* Array of current regions		    */

+    int	numRI;      /* Number of entries used in ri	    */

+    int	sizeRI;	    /* Number of entries available in ri    */

+    int	i;	    /* Index into rects			    */

+    int	j;	    /* Index into ri			    */

+    RegionInfo *rit;       /* &ri[j]				    */

+    RegionPtr  reg;        /* ri[j].reg			    */

+    BoxPtr	box;	    /* Current box in rects		    */

+    BoxPtr	riBox;      /* Last box in ri[j].reg		    */

+    RegionPtr  hreg;       /* ri[j_half].reg			    */

+    Bool		ret = TRUE;

+

+    *pOverlap = FALSE;

+    if (!badreg->data)

+    {

+	good(badreg);

+	return TRUE;

+    }

+    numRects = badreg->data->numRects;

+    if (!numRects)

+    {

+	if (REGION_NAR(badreg))

+	    return FALSE;

+	good(badreg);

+	return TRUE;

+    }

+    if (badreg->extents.x1 < badreg->extents.x2)

+    {

+	if ((numRects) == 1)

+	{

+	    xfreeData(badreg);

+	    badreg->data = (RegDataPtr) NULL;

+	}

+	else

+	{

+	    DOWNSIZE(badreg, numRects);

+	}

+	good(badreg);

+	return TRUE;

+    }

+

+    /* Step 1: Sort the rects array into ascending (y1, x1) order */

+    QuickSortRects(REGION_BOXPTR(badreg), numRects);

+

+    /* Step 2: Scatter the sorted array into the minimum number of regions */

+

+    /* Set up the first region to be the first rectangle in badreg */

+    /* Note that step 2 code will never overflow the ri[0].reg rects array */

+    ri = (RegionInfo *) malloc(4 * sizeof(RegionInfo));

+    if (!ri)

+	return miRegionBreak (badreg);

+    sizeRI = 4;

+    numRI = 1;

+    ri[0].prevBand = 0;

+    ri[0].curBand = 0;

+    ri[0].reg = *badreg;

+    box = REGION_BOXPTR(&ri[0].reg);

+    ri[0].reg.extents = *box;

+    ri[0].reg.data->numRects = 1;

+

+    /* Now scatter rectangles into the minimum set of valid regions.  If the

+       next rectangle to be added to a region would force an existing rectangle

+       in the region to be split up in order to maintain y-x banding, just

+       forget it.  Try the next region.  If it doesn't fit cleanly into any

+       region, make a new one. */

+

+    for (i = numRects; --i > 0;)

+    {

+	box++;

+	/* Look for a region to append box to */

+	for (j = numRI, rit = ri; --j >= 0; rit++)

+	{

+	    reg = &rit->reg;

+	    riBox = REGION_END(reg);

+

+	    if (box->y1 == riBox->y1 && box->y2 == riBox->y2)

+	    {

+		/* box is in same band as riBox.  Merge or append it */

+		if (box->x1 <= riBox->x2)

+		{

+		    /* Merge it with riBox */

+		    if (box->x1 < riBox->x2) *pOverlap = TRUE;

+		    if (box->x2 > riBox->x2) riBox->x2 = box->x2;

+		}

+		else

+		{

+		    RECTALLOC_BAIL(reg, 1, bail);

+		    *REGION_TOP(reg) = *box;

+		    reg->data->numRects++;

+		}

+		goto NextRect;   /* So sue me */

+	    }

+	    else if (box->y1 >= riBox->y2)

+	    {

+		/* Put box into new band */

+		if (reg->extents.x2 < riBox->x2) reg->extents.x2 = riBox->x2;

+		if (reg->extents.x1 > box->x1)   reg->extents.x1 = box->x1;

+		Coalesce(reg, rit->prevBand, rit->curBand);

+		rit->curBand = reg->data->numRects;

+		RECTALLOC_BAIL(reg, 1, bail);

+		*REGION_TOP(reg) = *box;

+		reg->data->numRects++;

+		goto NextRect;

+	    }

+	    /* Well, this region was inappropriate.  Try the next one. */

+	} /* for j */

+

+	/* Uh-oh.  No regions were appropriate.  Create a new one. */

+	if (sizeRI == numRI)

+	{

+	    /* Oops, allocate space for new region information */

+	    sizeRI <<= 1;

+	    rit = (RegionInfo *) realloc(ri, sizeRI * sizeof(RegionInfo));

+	    if (!rit)

+		goto bail;

+	    ri = rit;

+	    rit = &ri[numRI];

+	}

+	numRI++;

+	rit->prevBand = 0;

+	rit->curBand = 0;

+	rit->reg.extents = *box;

+	rit->reg.data = NULL;

+	if (!miRectAlloc(&rit->reg, (i+numRI) / numRI)) /* MUST force allocation */

+	    goto bail;

+NextRect: ;

+    } /* for i */

+

+    /* Make a final pass over each region in order to Coalesce and set

+       extents.x2 and extents.y2 */

+

+    for (j = numRI, rit = ri; --j >= 0; rit++)

+    {

+	reg = &rit->reg;

+	riBox = REGION_END(reg);

+	reg->extents.y2 = riBox->y2;

+	if (reg->extents.x2 < riBox->x2) reg->extents.x2 = riBox->x2;

+	Coalesce(reg, rit->prevBand, rit->curBand);

+	if (reg->data->numRects == 1) /* keep unions happy below */

+	{

+	    xfreeData(reg);

+	    reg->data = NULL;

+	}

+    }

+

+    /* Step 3: Union all regions into a single region */

+    while (numRI > 1)

+    {

+	int half = numRI/2;

+	for (j = numRI & 1; j < (half + (numRI & 1)); j++)

+	{

+	    reg = &ri[j].reg;

+	    hreg = &ri[j+half].reg;

+	    if (!miRegionOp(reg, reg, hreg, miUnionO, TRUE, TRUE, pOverlap))

+		ret = FALSE;

+	    if (hreg->extents.x1 < reg->extents.x1)

+		reg->extents.x1 = hreg->extents.x1;

+	    if (hreg->extents.y1 < reg->extents.y1)

+		reg->extents.y1 = hreg->extents.y1;

+	    if (hreg->extents.x2 > reg->extents.x2)

+		reg->extents.x2 = hreg->extents.x2;

+	    if (hreg->extents.y2 > reg->extents.y2)

+		reg->extents.y2 = hreg->extents.y2;

+	    xfreeData(hreg);

+	}

+	numRI -= half;

+    }

+    *badreg = ri[0].reg;

+    free(ri);

+    good(badreg);

+    return ret;

+bail:

+    for (i = 0; i < numRI; i++)

+	xfreeData(&ri[i].reg);

+    free(ri);

+    return miRegionBreak (badreg);

+}

+

+RegionPtr

+miRectsToRegion(int nrects, xRectangle *prect, int ctype)

+{

+    

+    RegionPtr		pRgn;

+    RegDataPtr		pData;

+    BoxPtr		pBox;

+    int        		i;

+    int			x1, y1, x2, y2;

+

+    pRgn = miRegionCreate(NullBox, 0);

+    if (REGION_NAR (pRgn))

+	return pRgn;

+    if (!nrects)

+	return pRgn;

+    if (nrects == 1)

+    {

+	x1 = prect->x;

+	y1 = prect->y;

+	if ((x2 = x1 + (int) prect->width) > MAXSHORT)

+	    x2 = MAXSHORT;

+	if ((y2 = y1 + (int) prect->height) > MAXSHORT)

+	    y2 = MAXSHORT;

+	if (x1 != x2 && y1 != y2)

+	{

+	    pRgn->extents.x1 = x1;

+	    pRgn->extents.y1 = y1;

+	    pRgn->extents.x2 = x2;

+	    pRgn->extents.y2 = y2;

+	    pRgn->data = NULL;

+	}

+	return pRgn;

+    }

+    pData = xallocData(nrects);

+    if (!pData)

+    {

+	miRegionBreak (pRgn);

+	return pRgn;

+    }

+    pBox = (BoxPtr) (pData + 1);

+    for (i = nrects; --i >= 0; prect++)

+    {

+	x1 = prect->x;

+	y1 = prect->y;

+	if ((x2 = x1 + (int) prect->width) > MAXSHORT)

+	    x2 = MAXSHORT;

+	if ((y2 = y1 + (int) prect->height) > MAXSHORT)

+	    y2 = MAXSHORT;

+	if (x1 != x2 && y1 != y2)

+	{

+	    pBox->x1 = x1;

+	    pBox->y1 = y1;

+	    pBox->x2 = x2;

+	    pBox->y2 = y2;

+	    pBox++;

+	}

+    }

+    if (pBox != (BoxPtr) (pData + 1))

+    {

+	pData->size = nrects;

+	pData->numRects = pBox - (BoxPtr) (pData + 1);

+    	pRgn->data = pData;

+    	if (ctype != CT_YXBANDED)

+    	{

+	    Bool overlap; /* result ignored */

+	    pRgn->extents.x1 = pRgn->extents.x2 = 0;

+	    miRegionValidate(pRgn, &overlap);

+    	}

+    	else

+	    miSetExtents(pRgn);

+    	good(pRgn);

+    }

+    else

+    {

+	free(pData);

+    }

+    return pRgn;

+}

+

+/*======================================================================

+ * 	    	  Region Subtraction

+ *====================================================================*/

+

+

+/*-

+ *-----------------------------------------------------------------------

+ * miSubtractO --

+ *	Overlapping band subtraction. x1 is the left-most point not yet

+ *	checked.

+ *

+ * Results:

+ *	TRUE if successful.

+ *

+ * Side Effects:

+ *	pReg may have rectangles added to it.

+ *

+ *-----------------------------------------------------------------------

+ */

+/*ARGSUSED*/

+

+/*-

+ *-----------------------------------------------------------------------

+ * miSubtract --

+ *	Subtract regS from regM and leave the result in regD.

+ *	S stands for subtrahend, M for minuend and D for difference.

+ *

+ * Results:

+ *	TRUE if successful.

+ *

+ * Side Effects:

+ *	regD is overwritten.

+ *

+ *-----------------------------------------------------------------------

+ */

+Bool

+miSubtract(RegionPtr regD, RegionPtr regM, RegionPtr regS)

+{

+    return pixman_region_subtract (regD, regM, regS);

+}

+

+/*======================================================================

+ *	    Region Inversion

+ *====================================================================*/

+

+/*-

+ *-----------------------------------------------------------------------

+ * miInverse --

+ *	Take a region and a box and return a region that is everything

+ *	in the box but not in the region. The careful reader will note

+ *	that this is the same as subtracting the region from the box...

+ *

+ * Results:

+ *	TRUE.

+ *

+ * Side Effects:

+ *	newReg is overwritten.

+ *

+ *-----------------------------------------------------------------------

+ */

+Bool

+miInverse(

+    RegionPtr	  newReg,       /* Destination region */

+    RegionPtr	  reg1,         /* Region to invert */

+    BoxPtr	  invRect	/* Bounding box for inversion */

+    )

+{

+    return pixman_region_inverse (newReg, reg1, invRect);

+}

+int

+miRectIn(RegionPtr region, BoxPtr prect)

+{

+    return pixman_region_contains_rectangle (region, prect);

+}

+

+/* TranslateRegion(pReg, x, y)

+   translates in place

+*/

+

+void

+miTranslateRegion(RegionPtr pReg, int x, int y)

+{

+    pixman_region_translate (pReg, x, y);

+}

+

+void

+miRegionReset(RegionPtr pReg, BoxPtr pBox)

+{

+    pixman_region_reset (pReg, pBox);

+}

+

+Bool

+miPointInRegion(

+    RegionPtr pReg,

+    int x,

+    int y,

+    BoxPtr box      /* "return" value */

+    )

+{

+    return pixman_region_contains_point (pReg, x, y, box);

+}

+

+Bool

+miRegionNotEmpty(RegionPtr pReg)

+{

+    return pixman_region_not_empty (pReg);

+}

+

+Bool

+miRegionBroken(RegionPtr pReg)

+{

+    good(pReg);

+    return (REGION_NAR(pReg));

+}

+

+void

+miRegionEmpty(RegionPtr pReg)

+{

+    good(pReg);

+    xfreeData(pReg);

+    pReg->extents.x2 = pReg->extents.x1;

+    pReg->extents.y2 = pReg->extents.y1;

+    pReg->data = &miEmptyData;

+}

+

+BoxPtr

+miRegionExtents(RegionPtr pReg)

+{

+    good(pReg);

+    return(&pReg->extents);

+}

+

+#define ExchangeSpans(a, b)				    \

+{							    \

+    DDXPointRec	tpt;				    	    \

+    int    	tw;					    \

+							    \

+    tpt = spans[a]; spans[a] = spans[b]; spans[b] = tpt;    \

+    tw = widths[a]; widths[a] = widths[b]; widths[b] = tw;  \

+}

+

+/* ||| I should apply the merge sort code to rectangle sorting above, and see

+   if mapping time can be improved.  But right now I've been at work 12 hours,

+   so forget it.

+*/

+

+static void QuickSortSpans(

+    DDXPointRec spans[],

+    int	    	widths[],

+    int	    	numSpans)

+{

+    int	    y;

+    int	    i, j, m;

+    DDXPointPtr    r;

+

+    /* Always called with numSpans > 1 */

+    /* Sorts only by y, doesn't bother to sort by x */

+

+    do

+    {

+	if (numSpans < 9)

+	{

+	    /* Do insertion sort */

+	    int yprev;

+

+	    yprev = spans[0].y;

+	    i = 1;

+	    do

+	    { /* while i != numSpans */

+		y = spans[i].y;

+		if (yprev > y)

+		{

+		    /* spans[i] is out of order.  Move into proper location. */

+		    DDXPointRec tpt;

+		    int	    tw, k;

+

+		    for (j = 0; y >= spans[j].y; j++) {}

+		    tpt = spans[i];

+		    tw  = widths[i];

+		    for (k = i; k != j; k--)

+		    {

+			spans[k] = spans[k-1];

+			widths[k] = widths[k-1];

+		    }

+		    spans[j] = tpt;

+		    widths[j] = tw;

+		    y = spans[i].y;

+		} /* if out of order */

+		yprev = y;

+		i++;

+	    } while (i != numSpans);

+	    return;

+	}

+

+	/* Choose partition element, stick in location 0 */

+	m = numSpans / 2;

+	if (spans[m].y > spans[0].y)		ExchangeSpans(m, 0);

+	if (spans[m].y > spans[numSpans-1].y)   ExchangeSpans(m, numSpans-1);

+	if (spans[m].y > spans[0].y)		ExchangeSpans(m, 0);

+	y = spans[0].y;

+

+        /* Partition array */

+        i = 0;

+        j = numSpans;

+        do

+	{

+	    r = &(spans[i]);

+	    do

+	    {

+		r++;

+		i++;

+            } while (i != numSpans && r->y < y);

+	    r = &(spans[j]);

+	    do

+	    {

+		r--;

+		j--;

+            } while (y < r->y);

+            if (i < j)

+		ExchangeSpans(i, j);

+        } while (i < j);

+

+        /* Move partition element back to middle */

+        ExchangeSpans(0, j);

+

+	/* Recurse */

+        if (numSpans-j-1 > 1)

+	    QuickSortSpans(&spans[j+1], &widths[j+1], numSpans-j-1);

+        numSpans = j;

+    } while (numSpans > 1);

+}

+

+#define NextBand()						    \

+{								    \

+    clipy1 = pboxBandStart->y1;					    \

+    clipy2 = pboxBandStart->y2;					    \

+    pboxBandEnd = pboxBandStart + 1;				    \

+    while (pboxBandEnd != pboxLast && pboxBandEnd->y1 == clipy1) {  \

+	pboxBandEnd++;						    \

+    }								    \

+    for (; ppt != pptLast && ppt->y < clipy1; ppt++, pwidth++) {} \

+}

+

+/*

+    Clip a list of scanlines to a region.  The caller has allocated the

+    space.  FSorted is non-zero if the scanline origins are in ascending

+    order.

+    returns the number of new, clipped scanlines.

+*/

+

+int

+miClipSpans(

+    RegionPtr	prgnDst,

+    DDXPointPtr ppt,

+    int	    	*pwidth,

+    int		nspans,

+    DDXPointPtr	pptNew,

+    int		*pwidthNew,

+    int		fSorted)

+{

+    DDXPointPtr pptLast;

+    int	*pwidthNewStart;	/* the vengeance of Xerox! */

+    int	y, x1, x2;

+    int	numRects;

+

+    good(prgnDst);

+    pptLast = ppt + nspans;

+    pwidthNewStart = pwidthNew;

+

+    if (!prgnDst->data)

+    {

+	/* Do special fast code with clip boundaries in registers(?) */

+	/* It doesn't pay much to make use of fSorted in this case, 

+	   so we lump everything together. */

+

+	int clipx1, clipx2, clipy1, clipy2;

+

+	clipx1 = prgnDst->extents.x1;

+	clipy1 = prgnDst->extents.y1;

+	clipx2 = prgnDst->extents.x2;

+	clipy2 = prgnDst->extents.y2;

+	    

+	for (; ppt != pptLast; ppt++, pwidth++)

+	{

+	    y = ppt->y;

+	    x1 = ppt->x;

+	    if (clipy1 <= y && y < clipy2)

+	    {

+		x2 = x1 + *pwidth;

+		if (x1 < clipx1)    x1 = clipx1;

+		if (x2 > clipx2)    x2 = clipx2;

+		if (x1 < x2)

+		{

+		    /* part of span in clip rectangle */

+		    pptNew->x = x1;

+		    pptNew->y = y;

+		    *pwidthNew = x2 - x1;

+		    pptNew++;

+		    pwidthNew++;

+		}

+	    }

+	} /* end for */

+

+    }

+    else if ((numRects = prgnDst->data->numRects))

+    {

+	/* Have to clip against many boxes */

+	BoxPtr pboxBandStart, pboxBandEnd;

+	BoxPtr pbox;

+	BoxPtr pboxLast;

+	int clipy1, clipy2;

+

+	/* In this case, taking advantage of sorted spans gains more than

+	   the sorting costs. */

+	if ((! fSorted) && (nspans > 1))

+	    QuickSortSpans(ppt, pwidth, nspans);

+

+	pboxBandStart = REGION_BOXPTR(prgnDst);

+	pboxLast = pboxBandStart + numRects;

+    

+	NextBand();

+

+	for (; ppt != pptLast; )

+	{

+	    y = ppt->y;

+	    if (y < clipy2)

+	    {

+		/* span is in the current band */

+		pbox = pboxBandStart;

+		x1 = ppt->x;

+		x2 = x1 + *pwidth;

+		do

+		{ /* For each box in band */

+		    int newx1, newx2;

+

+		    newx1 = x1;

+		    newx2 = x2;

+		    if (newx1 < pbox->x1)   newx1 = pbox->x1;

+		    if (newx2 > pbox->x2)   newx2 = pbox->x2;

+		    if (newx1 < newx2)

+		    {

+			/* Part of span in clip rectangle */

+			pptNew->x = newx1;

+			pptNew->y = y;

+			*pwidthNew = newx2 - newx1;

+			pptNew++;

+			pwidthNew++;

+		    }

+		    pbox++;

+		} while (pbox != pboxBandEnd);

+		ppt++;

+		pwidth++;

+	    }

+	    else

+	    {

+		/* Move to next band, adjust ppt as needed */

+		pboxBandStart = pboxBandEnd;

+		if (pboxBandStart == pboxLast)

+		    break; /* We're completely done */

+		NextBand();

+	    }

+	}

+    }

+    return (pwidthNew - pwidthNewStart);

+}

diff --git a/xorg-server/mi/miscrinit.c b/xorg-server/mi/miscrinit.c
index 96113d65d..2af17672b 100644
--- a/xorg-server/mi/miscrinit.c
+++ b/xorg-server/mi/miscrinit.c
@@ -1,313 +1,312 @@
-/*
-
-Copyright 1990, 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 "servermd.h"
-#include "misc.h"
-#include "mi.h"
-#include "scrnintstr.h"
-#include "pixmapstr.h"
-#include "dix.h"
-#include "miline.h"
-#ifdef MITSHM
-#include <X11/extensions/shm.h>
-#include "shmint.h"
-#endif
-
-/* We use this structure to propogate some information from miScreenInit to
- * miCreateScreenResources.  miScreenInit allocates the structure, fills it
- * in, and puts it into pScreen->devPrivate.  miCreateScreenResources 
- * extracts the info and frees the structure.  We could've accomplished the
- * same thing by adding fields to the screen structure, but they would have
- * ended up being redundant, and would have exposed this mi implementation
- * detail to the whole server.
- */
-
-typedef struct
-{
-    pointer pbits; /* pointer to framebuffer */
-    int width;    /* delta to add to a framebuffer addr to move one row down */
-} miScreenInitParmsRec, *miScreenInitParmsPtr;
-
-
-/* this plugs into pScreen->ModifyPixmapHeader */
-Bool
-miModifyPixmapHeader(PixmapPtr pPixmap, int width, int height, int depth,
-                     int bitsPerPixel, int devKind, pointer pPixData)
-{
-    if (!pPixmap)
-	return FALSE;
-
-    /*
-     * If all arguments are specified, reinitialize everything (including
-     * validated state).
-     */
-    if ((width > 0) && (height > 0) && (depth > 0) && (bitsPerPixel > 0) &&
-	(devKind > 0) && pPixData) {
-	pPixmap->drawable.depth = depth;
-	pPixmap->drawable.bitsPerPixel = bitsPerPixel;
-	pPixmap->drawable.id = 0;
-	pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
-	pPixmap->drawable.x = 0;
-	pPixmap->drawable.y = 0;
-	pPixmap->drawable.width = width;
-	pPixmap->drawable.height = height;
-	pPixmap->devKind = devKind;
-	pPixmap->refcnt = 1;
-	pPixmap->devPrivate.ptr = pPixData;
-    } else {
-	/*
-	 * Only modify specified fields, keeping all others intact.
-	 */
-
-	if (width > 0)
-	    pPixmap->drawable.width = width;
-
-	if (height > 0)
-	    pPixmap->drawable.height = height;
-
-	if (depth > 0)
-	    pPixmap->drawable.depth = depth;
-
-	if (bitsPerPixel > 0)
-	    pPixmap->drawable.bitsPerPixel = bitsPerPixel;
-	else if ((bitsPerPixel < 0) && (depth > 0))
-	    pPixmap->drawable.bitsPerPixel = BitsPerPixel(depth);
-
-	/*
-	 * CAVEAT:  Non-SI DDXen may use devKind and devPrivate fields for
-	 *          other purposes.
-	 */
-	if (devKind > 0)
-	    pPixmap->devKind = devKind;
-	else if ((devKind < 0) && ((width > 0) || (depth > 0)))
-	    pPixmap->devKind = PixmapBytePad(pPixmap->drawable.width,
-		pPixmap->drawable.depth);
-
-	if (pPixData)
-	    pPixmap->devPrivate.ptr = pPixData;
-    }
-    return TRUE;
-}
-
-static Bool
-miCloseScreen (int iScreen, ScreenPtr pScreen)
-{
-    return ((*pScreen->DestroyPixmap)((PixmapPtr)pScreen->devPrivate));
-}
-
-/* With the introduction of pixmap privates, the "screen pixmap" can no
- * longer be created in miScreenInit, since all the modules that could
- * possibly ask for pixmap private space have not been initialized at
- * that time.  pScreen->CreateScreenResources is called after all
- * possible private-requesting modules have been inited; we create the
- * screen pixmap here.
- */
-Bool
-miCreateScreenResources(ScreenPtr pScreen)
-{
-    miScreenInitParmsPtr pScrInitParms;
-    pointer value;
-
-    pScrInitParms = (miScreenInitParmsPtr)pScreen->devPrivate;
-
-    /* if width is non-zero, pScreen->devPrivate will be a pixmap
-     * else it will just take the value pbits
-     */
-    if (pScrInitParms->width)
-    {
-	PixmapPtr pPixmap;
-
-	/* create a pixmap with no data, then redirect it to point to
-	 * the screen
-	 */
-	pPixmap = (*pScreen->CreatePixmap)(pScreen, 0, 0, pScreen->rootDepth, 0);
-	if (!pPixmap)
-	    return FALSE;
-
-	if (!(*pScreen->ModifyPixmapHeader)(pPixmap, pScreen->width,
-		    pScreen->height, pScreen->rootDepth,
-		    BitsPerPixel(pScreen->rootDepth),
-		    PixmapBytePad(pScrInitParms->width, pScreen->rootDepth),
-		    pScrInitParms->pbits))
-	    return FALSE;
-	value = (pointer)pPixmap;
-    }
-    else
-    {
-	value = pScrInitParms->pbits;
-    }
-    xfree(pScreen->devPrivate); /* freeing miScreenInitParmsRec */
-    pScreen->devPrivate = value; /* pPixmap or pbits */
-    return TRUE;
-}
-
-Bool
-miScreenDevPrivateInit(ScreenPtr pScreen, int width, pointer pbits)
-{
-    miScreenInitParmsPtr pScrInitParms;
-
-    /* Stash pbits and width in a short-lived miScreenInitParmsRec attached
-     * to the screen, until CreateScreenResources can put them in the
-     * screen pixmap.
-     */
-    pScrInitParms = xalloc(sizeof(miScreenInitParmsRec));
-    if (!pScrInitParms)
-	return FALSE;
-    pScrInitParms->pbits = pbits;
-    pScrInitParms->width = width;
-    pScreen->devPrivate = (pointer)pScrInitParms;
-    return TRUE;
-}
-
-static PixmapPtr
-miGetScreenPixmap(ScreenPtr pScreen)
-{
-    return (PixmapPtr)(pScreen->devPrivate);
-}
-
-static void
-miSetScreenPixmap(PixmapPtr pPix)
-{
-    if (pPix)
-	pPix->drawable.pScreen->devPrivate = (pointer)pPix;
-}
-
-Bool
-miScreenInit(
-    ScreenPtr pScreen,
-    pointer pbits,		/* pointer to screen bits */
-    int xsize, int ysize,	/* in pixels */
-    int dpix, int dpiy,		/* dots per inch */
-    int width,			/* pixel width of frame buffer */
-    int rootDepth,		/* depth of root window */
-    int numDepths,		/* number of depths supported */
-    DepthRec *depths,		/* supported depths */
-    VisualID rootVisual,	/* root visual */
-    int numVisuals,		/* number of visuals supported */
-    VisualRec *visuals		/* supported visuals */
-    )
-{
-    pScreen->width = xsize;
-    pScreen->height = ysize;
-    pScreen->mmWidth = (xsize * 254 + dpix * 5) / (dpix * 10);
-    pScreen->mmHeight = (ysize * 254 + dpiy * 5) / (dpiy * 10);
-    pScreen->numDepths = numDepths;
-    pScreen->rootDepth = rootDepth;
-    pScreen->allowedDepths = depths;
-    pScreen->rootVisual = rootVisual;
-    /* defColormap */
-    pScreen->minInstalledCmaps = 1;
-    pScreen->maxInstalledCmaps = 1;
-    pScreen->backingStoreSupport = NotUseful;
-    pScreen->saveUnderSupport = NotUseful;
-    /* whitePixel, blackPixel */
-    pScreen->ModifyPixmapHeader = miModifyPixmapHeader;
-    pScreen->CreateScreenResources = miCreateScreenResources;
-    pScreen->GetScreenPixmap = miGetScreenPixmap;
-    pScreen->SetScreenPixmap = miSetScreenPixmap;
-    pScreen->numVisuals = numVisuals;
-    pScreen->visuals = visuals;
-    if (width)
-    {
-#ifdef MITSHM
-	ShmRegisterFbFuncs(pScreen);
-#endif
-	pScreen->CloseScreen = miCloseScreen;
-    }
-    /* else CloseScreen */
-    /* QueryBestSize, SaveScreen, GetImage, GetSpans */
-    pScreen->PointerNonInterestBox = (PointerNonInterestBoxProcPtr) 0;
-    pScreen->SourceValidate = (SourceValidateProcPtr) 0;
-    /* CreateWindow, DestroyWindow, PositionWindow, ChangeWindowAttributes */
-    /* RealizeWindow, UnrealizeWindow */
-    pScreen->ValidateTree = miValidateTree;
-    pScreen->PostValidateTree = (PostValidateTreeProcPtr) 0;
-    pScreen->WindowExposures = miWindowExposures;
-    /* CopyWindow */
-    pScreen->ClearToBackground = miClearToBackground;
-    pScreen->ClipNotify = (ClipNotifyProcPtr) 0;
-    pScreen->RestackWindow = (RestackWindowProcPtr) 0;
-    /* CreatePixmap, DestroyPixmap */
-    /* RealizeFont, UnrealizeFont */
-    /* CreateGC */
-    /* CreateColormap, DestroyColormap, InstallColormap, UninstallColormap */
-    /* ListInstalledColormaps, StoreColors, ResolveColor */
-    /* BitmapToRegion */
-    pScreen->SendGraphicsExpose = miSendGraphicsExpose;
-    pScreen->BlockHandler = (ScreenBlockHandlerProcPtr)NoopDDA;
-    pScreen->WakeupHandler = (ScreenWakeupHandlerProcPtr)NoopDDA;
-    pScreen->blockData = (pointer)0;
-    pScreen->wakeupData = (pointer)0;
-    pScreen->MarkWindow = miMarkWindow;
-    pScreen->MarkOverlappedWindows = miMarkOverlappedWindows;
-    pScreen->ChangeSaveUnder = NULL;
-    pScreen->PostChangeSaveUnder = NULL;
-    pScreen->MoveWindow = miMoveWindow;
-    pScreen->ResizeWindow = miSlideAndSizeWindow;
-    pScreen->GetLayerWindow = miGetLayerWindow;
-    pScreen->HandleExposures = miHandleValidateExposures;
-    pScreen->ReparentWindow = (ReparentWindowProcPtr) 0;
-    pScreen->ChangeBorderWidth = miChangeBorderWidth;
-    pScreen->SetShape = miSetShape;
-    pScreen->MarkUnrealizedWindow = miMarkUnrealizedWindow;
-
-    pScreen->SaveDoomedAreas = 0;
-    pScreen->RestoreAreas = 0;
-    pScreen->ExposeCopy = 0;
-    pScreen->TranslateBackingStore = 0;
-    pScreen->ClearBackingStore = 0;
-    pScreen->DrawGuarantee = 0;
-
-    miSetZeroLineBias(pScreen, DEFAULTZEROLINEBIAS);
-
-    return miScreenDevPrivateInit(pScreen, width, pbits);
-}
-
-static int privateKeyIndex;
-static DevPrivateKey privateKey = &privateKeyIndex;
-
-DevPrivateKey
-miAllocateGCPrivateIndex(void)
-{
-    return privateKey;
-}
-
-static int miZeroLineScreenKeyIndex;
-DevPrivateKey miZeroLineScreenKey = &miZeroLineScreenKeyIndex;
-
-void
-miSetZeroLineBias(ScreenPtr pScreen, unsigned int bias)
-{
-    dixSetPrivate(&pScreen->devPrivates, miZeroLineScreenKey, 
-					(unsigned long *)(unsigned long)bias);
-}
+/*

+

+Copyright 1990, 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 "servermd.h"

+#include "misc.h"

+#include "mi.h"

+#include "scrnintstr.h"

+#include "pixmapstr.h"

+#include "dix.h"

+#include "miline.h"

+#ifdef MITSHM

+#include <X11/extensions/shm.h>

+#include "shmint.h"

+#endif

+

+/* We use this structure to propogate some information from miScreenInit to

+ * miCreateScreenResources.  miScreenInit allocates the structure, fills it

+ * in, and puts it into pScreen->devPrivate.  miCreateScreenResources 

+ * extracts the info and frees the structure.  We could've accomplished the

+ * same thing by adding fields to the screen structure, but they would have

+ * ended up being redundant, and would have exposed this mi implementation

+ * detail to the whole server.

+ */

+

+typedef struct

+{

+    pointer pbits; /* pointer to framebuffer */

+    int width;    /* delta to add to a framebuffer addr to move one row down */

+} miScreenInitParmsRec, *miScreenInitParmsPtr;

+

+

+/* this plugs into pScreen->ModifyPixmapHeader */

+Bool

+miModifyPixmapHeader(PixmapPtr pPixmap, int width, int height, int depth,

+                     int bitsPerPixel, int devKind, pointer pPixData)

+{

+    if (!pPixmap)

+	return FALSE;

+

+    /*

+     * If all arguments are specified, reinitialize everything (including

+     * validated state).

+     */

+    if ((width > 0) && (height > 0) && (depth > 0) && (bitsPerPixel > 0) &&

+	(devKind > 0) && pPixData) {

+	pPixmap->drawable.depth = depth;

+	pPixmap->drawable.bitsPerPixel = bitsPerPixel;

+	pPixmap->drawable.id = 0;

+	pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;

+	pPixmap->drawable.x = 0;

+	pPixmap->drawable.y = 0;

+	pPixmap->drawable.width = width;

+	pPixmap->drawable.height = height;

+	pPixmap->devKind = devKind;

+	pPixmap->refcnt = 1;

+	pPixmap->devPrivate.ptr = pPixData;

+    } else {

+	/*

+	 * Only modify specified fields, keeping all others intact.

+	 */

+

+	if (width > 0)

+	    pPixmap->drawable.width = width;

+

+	if (height > 0)

+	    pPixmap->drawable.height = height;

+

+	if (depth > 0)

+	    pPixmap->drawable.depth = depth;

+

+	if (bitsPerPixel > 0)

+	    pPixmap->drawable.bitsPerPixel = bitsPerPixel;

+	else if ((bitsPerPixel < 0) && (depth > 0))

+	    pPixmap->drawable.bitsPerPixel = BitsPerPixel(depth);

+

+	/*

+	 * CAVEAT:  Non-SI DDXen may use devKind and devPrivate fields for

+	 *          other purposes.

+	 */

+	if (devKind > 0)

+	    pPixmap->devKind = devKind;

+	else if ((devKind < 0) && ((width > 0) || (depth > 0)))

+	    pPixmap->devKind = PixmapBytePad(pPixmap->drawable.width,

+		pPixmap->drawable.depth);

+

+	if (pPixData)

+	    pPixmap->devPrivate.ptr = pPixData;

+    }

+    return TRUE;

+}

+

+static Bool

+miCloseScreen (int iScreen, ScreenPtr pScreen)

+{

+    return ((*pScreen->DestroyPixmap)((PixmapPtr)pScreen->devPrivate));

+}

+

+/* With the introduction of pixmap privates, the "screen pixmap" can no

+ * longer be created in miScreenInit, since all the modules that could

+ * possibly ask for pixmap private space have not been initialized at

+ * that time.  pScreen->CreateScreenResources is called after all

+ * possible private-requesting modules have been inited; we create the

+ * screen pixmap here.

+ */

+Bool

+miCreateScreenResources(ScreenPtr pScreen)

+{

+    miScreenInitParmsPtr pScrInitParms;

+    pointer value;

+

+    pScrInitParms = (miScreenInitParmsPtr)pScreen->devPrivate;

+

+    /* if width is non-zero, pScreen->devPrivate will be a pixmap

+     * else it will just take the value pbits

+     */

+    if (pScrInitParms->width)

+    {

+	PixmapPtr pPixmap;

+

+	/* create a pixmap with no data, then redirect it to point to

+	 * the screen

+	 */

+	pPixmap = (*pScreen->CreatePixmap)(pScreen, 0, 0, pScreen->rootDepth, 0);

+	if (!pPixmap)

+	    return FALSE;

+

+	if (!(*pScreen->ModifyPixmapHeader)(pPixmap, pScreen->width,

+		    pScreen->height, pScreen->rootDepth,

+		    BitsPerPixel(pScreen->rootDepth),

+		    PixmapBytePad(pScrInitParms->width, pScreen->rootDepth),

+		    pScrInitParms->pbits))

+	    return FALSE;

+	value = (pointer)pPixmap;

+    }

+    else

+    {

+	value = pScrInitParms->pbits;

+    }

+    free(pScreen->devPrivate); /* freeing miScreenInitParmsRec */

+    pScreen->devPrivate = value; /* pPixmap or pbits */

+    return TRUE;

+}

+

+Bool

+miScreenDevPrivateInit(ScreenPtr pScreen, int width, pointer pbits)

+{

+    miScreenInitParmsPtr pScrInitParms;

+

+    /* Stash pbits and width in a short-lived miScreenInitParmsRec attached

+     * to the screen, until CreateScreenResources can put them in the

+     * screen pixmap.

+     */

+    pScrInitParms = malloc(sizeof(miScreenInitParmsRec));

+    if (!pScrInitParms)

+	return FALSE;

+    pScrInitParms->pbits = pbits;

+    pScrInitParms->width = width;

+    pScreen->devPrivate = (pointer)pScrInitParms;

+    return TRUE;

+}

+

+static PixmapPtr

+miGetScreenPixmap(ScreenPtr pScreen)

+{

+    return (PixmapPtr)(pScreen->devPrivate);

+}

+

+static void

+miSetScreenPixmap(PixmapPtr pPix)

+{

+    if (pPix)

+	pPix->drawable.pScreen->devPrivate = (pointer)pPix;

+}

+

+Bool

+miScreenInit(

+    ScreenPtr pScreen,

+    pointer pbits,		/* pointer to screen bits */

+    int xsize, int ysize,	/* in pixels */

+    int dpix, int dpiy,		/* dots per inch */

+    int width,			/* pixel width of frame buffer */

+    int rootDepth,		/* depth of root window */

+    int numDepths,		/* number of depths supported */

+    DepthRec *depths,		/* supported depths */

+    VisualID rootVisual,	/* root visual */

+    int numVisuals,		/* number of visuals supported */

+    VisualRec *visuals		/* supported visuals */

+    )

+{

+    pScreen->width = xsize;

+    pScreen->height = ysize;

+    pScreen->mmWidth = (xsize * 254 + dpix * 5) / (dpix * 10);

+    pScreen->mmHeight = (ysize * 254 + dpiy * 5) / (dpiy * 10);

+    pScreen->numDepths = numDepths;

+    pScreen->rootDepth = rootDepth;

+    pScreen->allowedDepths = depths;

+    pScreen->rootVisual = rootVisual;

+    /* defColormap */

+    pScreen->minInstalledCmaps = 1;

+    pScreen->maxInstalledCmaps = 1;

+    pScreen->backingStoreSupport = NotUseful;

+    pScreen->saveUnderSupport = NotUseful;

+    /* whitePixel, blackPixel */

+    pScreen->ModifyPixmapHeader = miModifyPixmapHeader;

+    pScreen->CreateScreenResources = miCreateScreenResources;

+    pScreen->GetScreenPixmap = miGetScreenPixmap;

+    pScreen->SetScreenPixmap = miSetScreenPixmap;

+    pScreen->numVisuals = numVisuals;

+    pScreen->visuals = visuals;

+    if (width)

+    {

+#ifdef MITSHM

+	ShmRegisterFbFuncs(pScreen);

+#endif

+	pScreen->CloseScreen = miCloseScreen;

+    }

+    /* else CloseScreen */

+    /* QueryBestSize, SaveScreen, GetImage, GetSpans */

+    pScreen->SourceValidate = (SourceValidateProcPtr) 0;

+    /* CreateWindow, DestroyWindow, PositionWindow, ChangeWindowAttributes */

+    /* RealizeWindow, UnrealizeWindow */

+    pScreen->ValidateTree = miValidateTree;

+    pScreen->PostValidateTree = (PostValidateTreeProcPtr) 0;

+    pScreen->WindowExposures = miWindowExposures;

+    /* CopyWindow */

+    pScreen->ClearToBackground = miClearToBackground;

+    pScreen->ClipNotify = (ClipNotifyProcPtr) 0;

+    pScreen->RestackWindow = (RestackWindowProcPtr) 0;

+    /* CreatePixmap, DestroyPixmap */

+    /* RealizeFont, UnrealizeFont */

+    /* CreateGC */

+    /* CreateColormap, DestroyColormap, InstallColormap, UninstallColormap */

+    /* ListInstalledColormaps, StoreColors, ResolveColor */

+    /* BitmapToRegion */

+    pScreen->SendGraphicsExpose = miSendGraphicsExpose;

+    pScreen->BlockHandler = (ScreenBlockHandlerProcPtr)NoopDDA;

+    pScreen->WakeupHandler = (ScreenWakeupHandlerProcPtr)NoopDDA;

+    pScreen->blockData = (pointer)0;

+    pScreen->wakeupData = (pointer)0;

+    pScreen->MarkWindow = miMarkWindow;

+    pScreen->MarkOverlappedWindows = miMarkOverlappedWindows;

+    pScreen->ChangeSaveUnder = NULL;

+    pScreen->PostChangeSaveUnder = NULL;

+    pScreen->MoveWindow = miMoveWindow;

+    pScreen->ResizeWindow = miSlideAndSizeWindow;

+    pScreen->GetLayerWindow = miGetLayerWindow;

+    pScreen->HandleExposures = miHandleValidateExposures;

+    pScreen->ReparentWindow = (ReparentWindowProcPtr) 0;

+    pScreen->ChangeBorderWidth = miChangeBorderWidth;

+    pScreen->SetShape = miSetShape;

+    pScreen->MarkUnrealizedWindow = miMarkUnrealizedWindow;

+

+    pScreen->SaveDoomedAreas = 0;

+    pScreen->RestoreAreas = 0;

+    pScreen->ExposeCopy = 0;

+    pScreen->TranslateBackingStore = 0;

+    pScreen->ClearBackingStore = 0;

+    pScreen->DrawGuarantee = 0;

+

+    miSetZeroLineBias(pScreen, DEFAULTZEROLINEBIAS);

+

+    return miScreenDevPrivateInit(pScreen, width, pbits);

+}

+

+static int privateKeyIndex;

+static DevPrivateKey privateKey = &privateKeyIndex;

+

+DevPrivateKey

+miAllocateGCPrivateIndex(void)

+{

+    return privateKey;

+}

+

+static int miZeroLineScreenKeyIndex;

+DevPrivateKey miZeroLineScreenKey = &miZeroLineScreenKeyIndex;

+

+void

+miSetZeroLineBias(ScreenPtr pScreen, unsigned int bias)

+{

+    dixSetPrivate(&pScreen->devPrivates, miZeroLineScreenKey, 

+					(unsigned long *)(unsigned long)bias);

+}

diff --git a/xorg-server/mi/mispans.c b/xorg-server/mi/mispans.c
index 5504341c4..7b332ee34 100644
--- a/xorg-server/mi/mispans.c
+++ b/xorg-server/mi/mispans.c
@@ -1,529 +1,529 @@
-/***********************************************************
-
-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.
-
-
-Copyright 1989 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include "misc.h"
-#include "pixmapstr.h"
-#include "gcstruct.h"
-#include "mispans.h"
-
-/*
-
-These routines maintain lists of Spans, in order to implement the
-``touch-each-pixel-once'' rules of wide lines and arcs.
-
-Written by Joel McCormack, Summer 1989.
-
-*/
-
-
-void miInitSpanGroup(SpanGroup *spanGroup)
-{
-    spanGroup->size = 0;
-    spanGroup->count = 0;
-    spanGroup->group = NULL;
-    spanGroup->ymin = MAXSHORT;
-    spanGroup->ymax = MINSHORT;
-} /* InitSpanGroup */
-
-#define YMIN(spans) (spans->points[0].y)
-#define YMAX(spans)  (spans->points[spans->count-1].y)
-
-static void miSubtractSpans (SpanGroup *spanGroup, Spans *sub)
-{
-    int		i, subCount, spansCount;
-    int		ymin, ymax, xmin, xmax;
-    Spans	*spans;
-    DDXPointPtr	subPt, spansPt;
-    int		*subWid, *spansWid;
-    int		extra;
-
-    ymin = YMIN(sub);
-    ymax = YMAX(sub);
-    spans = spanGroup->group;
-    for (i = spanGroup->count; i; i--, spans++) {
-	if (YMIN(spans) <= ymax && ymin <= YMAX(spans)) {
-	    subCount = sub->count;
-	    subPt = sub->points;
-	    subWid = sub->widths;
-	    spansCount = spans->count;
-	    spansPt = spans->points;
-	    spansWid = spans->widths;
-	    extra = 0;
-	    for (;;)
- 	    {
-		while (spansCount && spansPt->y < subPt->y)
-		{
-		    spansPt++;  spansWid++; spansCount--;
-		}
-		if (!spansCount)
-		    break;
-		while (subCount && subPt->y < spansPt->y)
-		{
-		    subPt++;	subWid++;   subCount--;
-		}
-		if (!subCount)
-		    break;
-		if (subPt->y == spansPt->y)
-		{
-		    xmin = subPt->x;
-		    xmax = xmin + *subWid;
-		    if (xmin >= spansPt->x + *spansWid || spansPt->x >= xmax)
-		    {
-			;
-		    }
-		    else if (xmin <= spansPt->x)
-		    {
-			if (xmax >= spansPt->x + *spansWid) 
-			{
-			    memmove (spansPt, spansPt + 1, sizeof *spansPt * (spansCount - 1));
-			    memmove (spansWid, spansWid + 1, sizeof *spansWid * (spansCount - 1));
-			    spansPt--;
-			    spansWid--;
-			    spans->count--;
-			    extra++;
-			}
-			else 
-			{
-			    *spansWid = *spansWid - (xmax - spansPt->x);
-			    spansPt->x = xmax;
-			}
-		    }
-		    else
-		    {
-			if (xmax >= spansPt->x + *spansWid)
-			{
-			    *spansWid = xmin - spansPt->x;
-			}
-			else
-			{
-			    if (!extra) {
-				DDXPointPtr newPt;
-				int	    *newwid;
-
-#define EXTRA 8
-				newPt = (DDXPointPtr) xrealloc (spans->points, (spans->count + EXTRA) * sizeof (DDXPointRec));
-				if (!newPt)
-				    break;
-				spansPt = newPt + (spansPt - spans->points);
-				spans->points = newPt;
-				newwid = (int *) xrealloc (spans->widths, (spans->count + EXTRA) * sizeof (int));
-				if (!newwid)
-				    break;
-				spansWid = newwid + (spansWid - spans->widths);
-				spans->widths = newwid;
-				extra = EXTRA;
-			    }
-			    memmove (spansPt + 1, spansPt, sizeof *spansPt * (spansCount));
-			    memmove (spansWid + 1, spansWid, sizeof *spansWid * (spansCount));
-			    spans->count++;
-			    extra--;
-			    *spansWid = xmin - spansPt->x;
-			    spansWid++;
-			    spansPt++;
-			    *spansWid = *spansWid - (xmax - spansPt->x);
-			    spansPt->x = xmax;
-			}
-		    }
-		}
-		spansPt++;  spansWid++; spansCount--;
-	    }
-	}
-    }
-}
-
-void miAppendSpans(SpanGroup *spanGroup, SpanGroup *otherGroup, Spans *spans)
-{
-    int ymin, ymax;
-    int spansCount;
-
-    spansCount = spans->count;
-    if (spansCount > 0) {
-	if (spanGroup->size == spanGroup->count) {
-	    spanGroup->size = (spanGroup->size + 8) * 2;
-	    spanGroup->group = (Spans *)
-		xrealloc(spanGroup->group, sizeof(Spans) * spanGroup->size);
-	 }
-
-	spanGroup->group[spanGroup->count] = *spans;
-	(spanGroup->count)++;
-	ymin = spans->points[0].y;
-	if (ymin < spanGroup->ymin) spanGroup->ymin = ymin;
-	ymax = spans->points[spansCount - 1].y;
-	if (ymax > spanGroup->ymax) spanGroup->ymax = ymax;
-	if (otherGroup &&
-	    otherGroup->ymin < ymax &&
-	    ymin < otherGroup->ymax)
-	{
-	    miSubtractSpans (otherGroup, spans);
-	}
-    }
-    else
-    {
-	xfree (spans->points);
-	xfree (spans->widths);
-    }
-} /* AppendSpans */
-
-void miFreeSpanGroup(SpanGroup *spanGroup)
-{
-    if (spanGroup->group != NULL) xfree(spanGroup->group);
-}
-
-static void QuickSortSpansX(
-    DDXPointRec points[],
-    int		widths[],
-    int		numSpans )
-{
-    int	    		x;
-    int	    		i, j, m;
-    DDXPointPtr 	r;
-
-/* Always called with numSpans > 1 */
-/* Sorts only by x, as all y should be the same */
-
-#define ExchangeSpans(a, b)				    \
-{							    \
-    DDXPointRec 	tpt;				    \
-    int    		tw;				    \
-							    \
-    tpt = points[a]; points[a] = points[b]; points[b] = tpt;    \
-    tw = widths[a]; widths[a] = widths[b]; widths[b] = tw;  \
-}
-
-    do {
-	if (numSpans < 9) {
-	    /* Do insertion sort */
-	    int xprev;
-
-	    xprev = points[0].x;
-	    i = 1;
-	    do { /* while i != numSpans */
-		x = points[i].x;
-		if (xprev > x) {
-		    /* points[i] is out of order.  Move into proper location. */
-		    DDXPointRec tpt;
-		    int	    tw, k;
-
-		    for (j = 0; x >= points[j].x; j++) {}
-		    tpt = points[i];
-		    tw  = widths[i];
-		    for (k = i; k != j; k--) {
-			points[k] = points[k-1];
-			widths[k] = widths[k-1];
-		    }
-		    points[j] = tpt;
-		    widths[j] = tw;
-		    x = points[i].x;
-		} /* if out of order */
-		xprev = x;
-		i++;
-	    } while (i != numSpans);
-	    return;
-	}
-
-	/* Choose partition element, stick in location 0 */
-	m = numSpans / 2;
-	if (points[m].x > points[0].x)		ExchangeSpans(m, 0);
-	if (points[m].x > points[numSpans-1].x) ExchangeSpans(m, numSpans-1);
-	if (points[m].x > points[0].x)		ExchangeSpans(m, 0);
-	x = points[0].x;
-
-        /* Partition array */
-        i = 0;
-        j = numSpans;
-        do {
-	    r = &(points[i]);
-	    do {
-		r++;
-		i++;
-            } while (i != numSpans && r->x < x);
-	    r = &(points[j]);
-	    do {
-		r--;
-		j--;
-            } while (x < r->x);
-            if (i < j) ExchangeSpans(i, j);
-        } while (i < j);
-
-        /* Move partition element back to middle */
-        ExchangeSpans(0, j);
-
-	/* Recurse */
-        if (numSpans-j-1 > 1)
-	    QuickSortSpansX(&points[j+1], &widths[j+1], numSpans-j-1);
-        numSpans = j;
-    } while (numSpans > 1);
-} /* QuickSortSpans */
-
-
-static int UniquifySpansX(
-    Spans	    	*spans,
-    DDXPointRec    	*newPoints,
-    int	    		*newWidths )
-{
-    int 		newx1, newx2, oldpt, i, y;
-    DDXPointRec		*oldPoints;
-    int	    		*oldWidths;
-    int			*startNewWidths;
-
-/* Always called with numSpans > 1 */
-/* Uniquify the spans, and stash them into newPoints and newWidths.  Return the
-   number of unique spans. */
-
-
-    startNewWidths = newWidths;
-
-    oldPoints = spans->points;
-    oldWidths = spans->widths;
-
-    y = oldPoints->y;
-    newx1 = oldPoints->x;
-    newx2 = newx1 + *oldWidths;
-
-    for (i = spans->count-1; i != 0; i--) {
-	oldPoints++;
-	oldWidths++;
-	oldpt = oldPoints->x;
-	if (oldpt > newx2) {
-	    /* Write current span, start a new one */
-	    newPoints->x = newx1;
-	    newPoints->y = y;
-	    *newWidths = newx2 - newx1;
-	    newPoints++;
-	    newWidths++;
-	    newx1 = oldpt;
-	    newx2 = oldpt + *oldWidths;
-	} else {
-	    /* extend current span, if old extends beyond new */
-	    oldpt = oldpt + *oldWidths;
-	    if (oldpt > newx2) newx2 = oldpt;
-	}
-    } /* for */
-
-    /* Write final span */
-    newPoints->x = newx1;
-    *newWidths = newx2 - newx1;
-    newPoints->y = y;
-
-    return (newWidths - startNewWidths) + 1;
-} /* UniquifySpansX */
-
-static void
-miDisposeSpanGroup (SpanGroup *spanGroup)
-{
-    int	    i;
-    Spans   *spans;
-
-    for (i = 0; i < spanGroup->count; i++)
-    {
-	spans = spanGroup->group + i;
-	xfree (spans->points);
-	xfree (spans->widths);
-    }
-}
-
-void miFillUniqueSpanGroup(DrawablePtr pDraw, GCPtr pGC, SpanGroup *spanGroup)
-{
-    int    		i;
-    Spans  		*spans;
-    Spans  		*yspans;
-    int    		*ysizes;
-    int    		ymin, ylength;
-
-    /* Outgoing spans for one big call to FillSpans */
-    DDXPointPtr    	points;
-    int	    		*widths;
-    int	    		count;
-
-    if (spanGroup->count == 0) return;
-
-    if (spanGroup->count == 1) {
-	/* Already should be sorted, unique */
-	spans = spanGroup->group;
-	(*pGC->ops->FillSpans)
-	    (pDraw, pGC, spans->count, spans->points, spans->widths, TRUE);
-	xfree(spans->points);
-	xfree(spans->widths);
-    }
-    else
-    {
-	/* Yuck.  Gross.  Radix sort into y buckets, then sort x and uniquify */
-	/* This seems to be the fastest thing to do.  I've tried sorting on
-	   both x and y at the same time rather than creating into all those
-	   y buckets, but it was somewhat slower. */
-
-	ymin    = spanGroup->ymin;
-	ylength = spanGroup->ymax - ymin + 1;
-
-	/* Allocate Spans for y buckets */
-	yspans = xalloc(ylength * sizeof(Spans));
-	ysizes = xalloc(ylength * sizeof (int));
-
-	if (!yspans || !ysizes)
-	{
-	    if (yspans)
-		xfree (yspans);
-	    if (ysizes)
-		xfree (ysizes);
-	    miDisposeSpanGroup (spanGroup);
-	    return;
-	}
-	
-	for (i = 0; i != ylength; i++) {
-	    ysizes[i]        = 0;
-	    yspans[i].count  = 0;
-	    yspans[i].points = NULL;
-	    yspans[i].widths = NULL;
-	}
-
-	/* Go through every single span and put it into the correct bucket */
-	count = 0;
-	for (i = 0, spans = spanGroup->group;
-		i != spanGroup->count;
-		i++, spans++) {
-	    int		index;
-	    int		j;
-
-	    for (j = 0, points = spans->points, widths = spans->widths;
-		    j != spans->count;
-		    j++, points++, widths++) {
-		index = points->y - ymin;
-		if (index >= 0 && index < ylength) {
-		    Spans *newspans = &(yspans[index]);
-		    if (newspans->count == ysizes[index]) {
-			DDXPointPtr newpoints;
-			int	    *newwidths;
-			ysizes[index] = (ysizes[index] + 8) * 2;
-			newpoints = (DDXPointPtr) xrealloc(
-			    newspans->points,
-			    ysizes[index] * sizeof(DDXPointRec));
-			newwidths = (int *) xrealloc(
-			    newspans->widths,
-			    ysizes[index] * sizeof(int));
-			if (!newpoints || !newwidths)
-			{
-			    int	i;
-
-			    for (i = 0; i < ylength; i++)
-			    {
-				xfree (yspans[i].points);
-				xfree (yspans[i].widths);
-			    }
-			    xfree (yspans);
-			    xfree (ysizes);
-			    miDisposeSpanGroup (spanGroup);
-			    return;
-			}
-			newspans->points = newpoints;
-			newspans->widths = newwidths;
-		    }
-		    newspans->points[newspans->count] = *points;
-		    newspans->widths[newspans->count] = *widths;
-		    (newspans->count)++;
-		} /* if y value of span in range */
-	    } /* for j through spans */
-	    count += spans->count;
-	    xfree(spans->points);
-	    spans->points = NULL;
-	    xfree(spans->widths);
-	    spans->widths = NULL;
-	} /* for i thorough Spans */
-
-	/* Now sort by x and uniquify each bucket into the final array */
-	points = xalloc(count * sizeof(DDXPointRec));
-	widths = xalloc(count * sizeof(int));
-	if (!points || !widths)
-	{
-	    int	i;
-
-	    for (i = 0; i < ylength; i++)
-	    {
-		xfree (yspans[i].points);
-		xfree (yspans[i].widths);
-	    }
-	    xfree (yspans);
-	    xfree (ysizes);
-	    if (points)
-		xfree (points);
-	    if (widths)
-		xfree (widths);
-	    return;
-	}
-	count = 0;
-	for (i = 0; i != ylength; i++) {
-	    int ycount = yspans[i].count;
-	    if (ycount > 0) {
-		if (ycount > 1) {
-		    QuickSortSpansX(yspans[i].points, yspans[i].widths, ycount);
-		    count += UniquifySpansX
-			(&(yspans[i]), &(points[count]), &(widths[count]));
-		} else {
-		    points[count] = yspans[i].points[0];
-		    widths[count] = yspans[i].widths[0];
-		    count++;
-		}
-		xfree(yspans[i].points);
-		xfree(yspans[i].widths);
-	    }
-	}
-
-	(*pGC->ops->FillSpans) (pDraw, pGC, count, points, widths, TRUE);
-	xfree(points);
-	xfree(widths);
-	xfree(yspans);
-	xfree(ysizes);		/* use (DE)xalloc for these? */
-    }
-
-    spanGroup->count = 0;
-    spanGroup->ymin = MAXSHORT;
-    spanGroup->ymax = MINSHORT;
-}
+/***********************************************************

+

+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.

+

+

+Copyright 1989 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+******************************************************************/

+

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include "misc.h"

+#include "pixmapstr.h"

+#include "gcstruct.h"

+#include "mispans.h"

+

+/*

+

+These routines maintain lists of Spans, in order to implement the

+``touch-each-pixel-once'' rules of wide lines and arcs.

+

+Written by Joel McCormack, Summer 1989.

+

+*/

+

+

+void miInitSpanGroup(SpanGroup *spanGroup)

+{

+    spanGroup->size = 0;

+    spanGroup->count = 0;

+    spanGroup->group = NULL;

+    spanGroup->ymin = MAXSHORT;

+    spanGroup->ymax = MINSHORT;

+} /* InitSpanGroup */

+

+#define YMIN(spans) (spans->points[0].y)

+#define YMAX(spans)  (spans->points[spans->count-1].y)

+

+static void miSubtractSpans (SpanGroup *spanGroup, Spans *sub)

+{

+    int		i, subCount, spansCount;

+    int		ymin, ymax, xmin, xmax;

+    Spans	*spans;

+    DDXPointPtr	subPt, spansPt;

+    int		*subWid, *spansWid;

+    int		extra;

+

+    ymin = YMIN(sub);

+    ymax = YMAX(sub);

+    spans = spanGroup->group;

+    for (i = spanGroup->count; i; i--, spans++) {

+	if (YMIN(spans) <= ymax && ymin <= YMAX(spans)) {

+	    subCount = sub->count;

+	    subPt = sub->points;

+	    subWid = sub->widths;

+	    spansCount = spans->count;

+	    spansPt = spans->points;

+	    spansWid = spans->widths;

+	    extra = 0;

+	    for (;;)

+ 	    {

+		while (spansCount && spansPt->y < subPt->y)

+		{

+		    spansPt++;  spansWid++; spansCount--;

+		}

+		if (!spansCount)

+		    break;

+		while (subCount && subPt->y < spansPt->y)

+		{

+		    subPt++;	subWid++;   subCount--;

+		}

+		if (!subCount)

+		    break;

+		if (subPt->y == spansPt->y)

+		{

+		    xmin = subPt->x;

+		    xmax = xmin + *subWid;

+		    if (xmin >= spansPt->x + *spansWid || spansPt->x >= xmax)

+		    {

+			;

+		    }

+		    else if (xmin <= spansPt->x)

+		    {

+			if (xmax >= spansPt->x + *spansWid) 

+			{

+			    memmove (spansPt, spansPt + 1, sizeof *spansPt * (spansCount - 1));

+			    memmove (spansWid, spansWid + 1, sizeof *spansWid * (spansCount - 1));

+			    spansPt--;

+			    spansWid--;

+			    spans->count--;

+			    extra++;

+			}

+			else 

+			{

+			    *spansWid = *spansWid - (xmax - spansPt->x);

+			    spansPt->x = xmax;

+			}

+		    }

+		    else

+		    {

+			if (xmax >= spansPt->x + *spansWid)

+			{

+			    *spansWid = xmin - spansPt->x;

+			}

+			else

+			{

+			    if (!extra) {

+				DDXPointPtr newPt;

+				int	    *newwid;

+

+#define EXTRA 8

+				newPt = (DDXPointPtr) realloc(spans->points, (spans->count + EXTRA) * sizeof (DDXPointRec));

+				if (!newPt)

+				    break;

+				spansPt = newPt + (spansPt - spans->points);

+				spans->points = newPt;

+				newwid = (int *) realloc(spans->widths, (spans->count + EXTRA) * sizeof (int));

+				if (!newwid)

+				    break;

+				spansWid = newwid + (spansWid - spans->widths);

+				spans->widths = newwid;

+				extra = EXTRA;

+			    }

+			    memmove (spansPt + 1, spansPt, sizeof *spansPt * (spansCount));

+			    memmove (spansWid + 1, spansWid, sizeof *spansWid * (spansCount));

+			    spans->count++;

+			    extra--;

+			    *spansWid = xmin - spansPt->x;

+			    spansWid++;

+			    spansPt++;

+			    *spansWid = *spansWid - (xmax - spansPt->x);

+			    spansPt->x = xmax;

+			}

+		    }

+		}

+		spansPt++;  spansWid++; spansCount--;

+	    }

+	}

+    }

+}

+

+void miAppendSpans(SpanGroup *spanGroup, SpanGroup *otherGroup, Spans *spans)

+{

+    int ymin, ymax;

+    int spansCount;

+

+    spansCount = spans->count;

+    if (spansCount > 0) {

+	if (spanGroup->size == spanGroup->count) {

+	    spanGroup->size = (spanGroup->size + 8) * 2;

+	    spanGroup->group = (Spans *)

+		realloc(spanGroup->group, sizeof(Spans) * spanGroup->size);

+	 }

+

+	spanGroup->group[spanGroup->count] = *spans;

+	(spanGroup->count)++;

+	ymin = spans->points[0].y;

+	if (ymin < spanGroup->ymin) spanGroup->ymin = ymin;

+	ymax = spans->points[spansCount - 1].y;

+	if (ymax > spanGroup->ymax) spanGroup->ymax = ymax;

+	if (otherGroup &&

+	    otherGroup->ymin < ymax &&

+	    ymin < otherGroup->ymax)

+	{

+	    miSubtractSpans (otherGroup, spans);

+	}

+    }

+    else

+    {

+	free(spans->points);

+	free(spans->widths);

+    }

+} /* AppendSpans */

+

+void miFreeSpanGroup(SpanGroup *spanGroup)

+{

+    if (spanGroup->group != NULL) free(spanGroup->group);

+}

+

+static void QuickSortSpansX(

+    DDXPointRec points[],

+    int		widths[],

+    int		numSpans )

+{

+    int	    		x;

+    int	    		i, j, m;

+    DDXPointPtr 	r;

+

+/* Always called with numSpans > 1 */

+/* Sorts only by x, as all y should be the same */

+

+#define ExchangeSpans(a, b)				    \

+{							    \

+    DDXPointRec 	tpt;				    \

+    int    		tw;				    \

+							    \

+    tpt = points[a]; points[a] = points[b]; points[b] = tpt;    \

+    tw = widths[a]; widths[a] = widths[b]; widths[b] = tw;  \

+}

+

+    do {

+	if (numSpans < 9) {

+	    /* Do insertion sort */

+	    int xprev;

+

+	    xprev = points[0].x;

+	    i = 1;

+	    do { /* while i != numSpans */

+		x = points[i].x;

+		if (xprev > x) {

+		    /* points[i] is out of order.  Move into proper location. */

+		    DDXPointRec tpt;

+		    int	    tw, k;

+

+		    for (j = 0; x >= points[j].x; j++) {}

+		    tpt = points[i];

+		    tw  = widths[i];

+		    for (k = i; k != j; k--) {

+			points[k] = points[k-1];

+			widths[k] = widths[k-1];

+		    }

+		    points[j] = tpt;

+		    widths[j] = tw;

+		    x = points[i].x;

+		} /* if out of order */

+		xprev = x;

+		i++;

+	    } while (i != numSpans);

+	    return;

+	}

+

+	/* Choose partition element, stick in location 0 */

+	m = numSpans / 2;

+	if (points[m].x > points[0].x)		ExchangeSpans(m, 0);

+	if (points[m].x > points[numSpans-1].x) ExchangeSpans(m, numSpans-1);

+	if (points[m].x > points[0].x)		ExchangeSpans(m, 0);

+	x = points[0].x;

+

+        /* Partition array */

+        i = 0;

+        j = numSpans;

+        do {

+	    r = &(points[i]);

+	    do {

+		r++;

+		i++;

+            } while (i != numSpans && r->x < x);

+	    r = &(points[j]);

+	    do {

+		r--;

+		j--;

+            } while (x < r->x);

+            if (i < j) ExchangeSpans(i, j);

+        } while (i < j);

+

+        /* Move partition element back to middle */

+        ExchangeSpans(0, j);

+

+	/* Recurse */

+        if (numSpans-j-1 > 1)

+	    QuickSortSpansX(&points[j+1], &widths[j+1], numSpans-j-1);

+        numSpans = j;

+    } while (numSpans > 1);

+} /* QuickSortSpans */

+

+

+static int UniquifySpansX(

+    Spans	    	*spans,

+    DDXPointRec    	*newPoints,

+    int	    		*newWidths )

+{

+    int 		newx1, newx2, oldpt, i, y;

+    DDXPointRec		*oldPoints;

+    int	    		*oldWidths;

+    int			*startNewWidths;

+

+/* Always called with numSpans > 1 */

+/* Uniquify the spans, and stash them into newPoints and newWidths.  Return the

+   number of unique spans. */

+

+

+    startNewWidths = newWidths;

+

+    oldPoints = spans->points;

+    oldWidths = spans->widths;

+

+    y = oldPoints->y;

+    newx1 = oldPoints->x;

+    newx2 = newx1 + *oldWidths;

+

+    for (i = spans->count-1; i != 0; i--) {

+	oldPoints++;

+	oldWidths++;

+	oldpt = oldPoints->x;

+	if (oldpt > newx2) {

+	    /* Write current span, start a new one */

+	    newPoints->x = newx1;

+	    newPoints->y = y;

+	    *newWidths = newx2 - newx1;

+	    newPoints++;

+	    newWidths++;

+	    newx1 = oldpt;

+	    newx2 = oldpt + *oldWidths;

+	} else {

+	    /* extend current span, if old extends beyond new */

+	    oldpt = oldpt + *oldWidths;

+	    if (oldpt > newx2) newx2 = oldpt;

+	}

+    } /* for */

+

+    /* Write final span */

+    newPoints->x = newx1;

+    *newWidths = newx2 - newx1;

+    newPoints->y = y;

+

+    return (newWidths - startNewWidths) + 1;

+} /* UniquifySpansX */

+

+static void

+miDisposeSpanGroup (SpanGroup *spanGroup)

+{

+    int	    i;

+    Spans   *spans;

+

+    for (i = 0; i < spanGroup->count; i++)

+    {

+	spans = spanGroup->group + i;

+	free(spans->points);

+	free(spans->widths);

+    }

+}

+

+void miFillUniqueSpanGroup(DrawablePtr pDraw, GCPtr pGC, SpanGroup *spanGroup)

+{

+    int    		i;

+    Spans  		*spans;

+    Spans  		*yspans;

+    int    		*ysizes;

+    int    		ymin, ylength;

+

+    /* Outgoing spans for one big call to FillSpans */

+    DDXPointPtr    	points;

+    int	    		*widths;

+    int	    		count;

+

+    if (spanGroup->count == 0) return;

+

+    if (spanGroup->count == 1) {

+	/* Already should be sorted, unique */

+	spans = spanGroup->group;

+	(*pGC->ops->FillSpans)

+	    (pDraw, pGC, spans->count, spans->points, spans->widths, TRUE);

+	free(spans->points);

+	free(spans->widths);

+    }

+    else

+    {

+	/* Yuck.  Gross.  Radix sort into y buckets, then sort x and uniquify */

+	/* This seems to be the fastest thing to do.  I've tried sorting on

+	   both x and y at the same time rather than creating into all those

+	   y buckets, but it was somewhat slower. */

+

+	ymin    = spanGroup->ymin;

+	ylength = spanGroup->ymax - ymin + 1;

+

+	/* Allocate Spans for y buckets */

+	yspans = malloc(ylength * sizeof(Spans));

+	ysizes = malloc(ylength * sizeof (int));

+

+	if (!yspans || !ysizes)

+	{

+	    if (yspans)

+		free(yspans);

+	    if (ysizes)

+		free(ysizes);

+	    miDisposeSpanGroup (spanGroup);

+	    return;

+	}

+	

+	for (i = 0; i != ylength; i++) {

+	    ysizes[i]        = 0;

+	    yspans[i].count  = 0;

+	    yspans[i].points = NULL;

+	    yspans[i].widths = NULL;

+	}

+

+	/* Go through every single span and put it into the correct bucket */

+	count = 0;

+	for (i = 0, spans = spanGroup->group;

+		i != spanGroup->count;

+		i++, spans++) {

+	    int		index;

+	    int		j;

+

+	    for (j = 0, points = spans->points, widths = spans->widths;

+		    j != spans->count;

+		    j++, points++, widths++) {

+		index = points->y - ymin;

+		if (index >= 0 && index < ylength) {

+		    Spans *newspans = &(yspans[index]);

+		    if (newspans->count == ysizes[index]) {

+			DDXPointPtr newpoints;

+			int	    *newwidths;

+			ysizes[index] = (ysizes[index] + 8) * 2;

+			newpoints = (DDXPointPtr) realloc(

+			    newspans->points,

+			    ysizes[index] * sizeof(DDXPointRec));

+			newwidths = (int *) realloc(

+			    newspans->widths,

+			    ysizes[index] * sizeof(int));

+			if (!newpoints || !newwidths)

+			{

+			    int	i;

+

+			    for (i = 0; i < ylength; i++)

+			    {

+				free(yspans[i].points);

+				free(yspans[i].widths);

+			    }

+			    free(yspans);

+			    free(ysizes);

+			    miDisposeSpanGroup (spanGroup);

+			    return;

+			}

+			newspans->points = newpoints;

+			newspans->widths = newwidths;

+		    }

+		    newspans->points[newspans->count] = *points;

+		    newspans->widths[newspans->count] = *widths;

+		    (newspans->count)++;

+		} /* if y value of span in range */

+	    } /* for j through spans */

+	    count += spans->count;

+	    free(spans->points);

+	    spans->points = NULL;

+	    free(spans->widths);

+	    spans->widths = NULL;

+	} /* for i thorough Spans */

+

+	/* Now sort by x and uniquify each bucket into the final array */

+	points = malloc(count * sizeof(DDXPointRec));

+	widths = malloc(count * sizeof(int));

+	if (!points || !widths)

+	{

+	    int	i;

+

+	    for (i = 0; i < ylength; i++)

+	    {

+		free(yspans[i].points);

+		free(yspans[i].widths);

+	    }

+	    free(yspans);

+	    free(ysizes);

+	    if (points)

+		free(points);

+	    if (widths)

+		free(widths);

+	    return;

+	}

+	count = 0;

+	for (i = 0; i != ylength; i++) {

+	    int ycount = yspans[i].count;

+	    if (ycount > 0) {

+		if (ycount > 1) {

+		    QuickSortSpansX(yspans[i].points, yspans[i].widths, ycount);

+		    count += UniquifySpansX

+			(&(yspans[i]), &(points[count]), &(widths[count]));

+		} else {

+		    points[count] = yspans[i].points[0];

+		    widths[count] = yspans[i].widths[0];

+		    count++;

+		}

+		free(yspans[i].points);

+		free(yspans[i].widths);

+	    }

+	}

+

+	(*pGC->ops->FillSpans) (pDraw, pGC, count, points, widths, TRUE);

+	free(points);

+	free(widths);

+	free(yspans);

+	free(ysizes);		/* use (DE)xalloc for these? */

+    }

+

+    spanGroup->count = 0;

+    spanGroup->ymin = MAXSHORT;

+    spanGroup->ymax = MINSHORT;

+}

diff --git a/xorg-server/mi/misprite.c b/xorg-server/mi/misprite.c
index 43c090889..a7041b8ba 100644
--- a/xorg-server/mi/misprite.c
+++ b/xorg-server/mi/misprite.c
@@ -1,1118 +1,1118 @@
-/*
- * 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;
-    miSpriteCursorFuncPtr    funcs;
-    DamagePtr	    pDamage;		/* damage tracking structure */
-    Bool            damageRegistered;
-} 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) \
-    ((!IsMaster(dev) && !dev->u.master) ? \
-       (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 int miSpriteScreenKeyIndex;
-static DevPrivateKey miSpriteScreenKey = &miSpriteScreenKeyIndex;
-static int miSpriteDevPrivatesKeyIndex;
-static DevPrivateKey miSpriteDevPrivatesKey = &miSpriteDevPrivatesKeyIndex;
-
-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);
-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(pScreen, field) ((pScreen)->field = \
-   ((miSpriteScreenPtr)dixLookupPrivate(&(pScreen)->devPrivates, \
-					miSpriteScreenKey))->field)
-#define SCREEN_EPILOGUE(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
-miSpriteReportDamage (DamagePtr pDamage, RegionPtr pRegion, void *closure)
-{
-    ScreenPtr		    pScreen = closure;
-    miSpriteScreenPtr	    pScreenPriv;
-    miCursorInfoPtr         pCursorInfo;
-    DeviceIntPtr            pDev;
-
-    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
-
-    for (pDev = inputInfo.devices; pDev; pDev = pDev->next)
-    {
-        if (DevHasCursor(pDev))
-        {
-            pCursorInfo = MISPRITE(pDev);
-
-            if (pCursorInfo->isUp &&
-                pCursorInfo->pScreen == pScreen &&
-                miRectIn(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,
-                    miSpriteCursorFuncPtr   cursorFuncs,
-                    miPointerScreenFuncPtr  screenFuncs)
-{
-    miSpriteScreenPtr	pScreenPriv;
-    VisualPtr		pVisual;
-
-    if (!DamageSetup (pScreen))
-	return FALSE;
-
-    pScreenPriv = xalloc (sizeof (miSpriteScreenRec));
-    if (!pScreenPriv)
-	return FALSE;
-
-    pScreenPriv->pDamage = DamageCreate (miSpriteReportDamage,
-					 NULL,
-					 DamageReportRawRegion,
-					 TRUE,
-					 pScreen,
-					 pScreen);
-
-    if (!miPointerInitialize (pScreen, &miSpritePointerFuncs, screenFuncs,TRUE))
-    {
-	xfree (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 = pScreen->BlockHandler;
-
-    pScreenPriv->DeviceCursorInitialize = pScreen->DeviceCursorInitialize;
-    pScreenPriv->DeviceCursorCleanup = pScreen->DeviceCursorCleanup;
-
-    pScreenPriv->pInstalledMap = NULL;
-    pScreenPriv->pColormap = NULL;
-    pScreenPriv->funcs = cursorFuncs;
-    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;
-
-    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;
-
-    pScreen->BlockHandler = miSpriteBlockHandler;
-
-    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;
-
-    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
-    pScreen->CloseScreen = pScreenPriv->CloseScreen;
-    pScreen->GetImage = pScreenPriv->GetImage;
-    pScreen->GetSpans = pScreenPriv->GetSpans;
-    pScreen->SourceValidate = pScreenPriv->SourceValidate;
-    pScreen->BlockHandler = pScreenPriv->BlockHandler;
-    pScreen->InstallColormap = pScreenPriv->InstallColormap;
-    pScreen->StoreColors = pScreenPriv->StoreColors;
-
-    DamageDestroy (pScreenPriv->pDamage);
-
-    xfree (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;
-    miSpriteScreenPtr    pScreenPriv;
-    DeviceIntPtr    pDev;
-    miCursorInfoPtr pCursorInfo;
-
-    SCREEN_PROLOGUE (pScreen, GetImage);
-
-    if (pDrawable->type == DRAWABLE_WINDOW)
-    {
-        pScreenPriv = dixLookupPrivate(&pScreen->devPrivates,miSpriteScreenKey);
-        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 (pScreen, GetImage);
-}
-
-static void
-miSpriteGetSpans (DrawablePtr pDrawable, int wMax, DDXPointPtr ppt,
-                  int *pwidth, int nspans, char *pdstStart)
-{
-    ScreenPtr		    pScreen = pDrawable->pScreen;
-    miSpriteScreenPtr	    pScreenPriv;
-    DeviceIntPtr            pDev;
-    miCursorInfoPtr         pCursorInfo;
-
-    SCREEN_PROLOGUE (pScreen, GetSpans);
-
-    if (pDrawable->type == DRAWABLE_WINDOW)
-    {
-        pScreenPriv = dixLookupPrivate(&pScreen->devPrivates,miSpriteScreenKey);
-
-        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 (pScreen, GetSpans);
-}
-
-static void
-miSpriteSourceValidate (DrawablePtr pDrawable, int x, int y, int width,
-                        int height)
-{
-    ScreenPtr		    pScreen = pDrawable->pScreen;
-    miSpriteScreenPtr	    pScreenPriv;
-    DeviceIntPtr            pDev;
-    miCursorInfoPtr         pCursorInfo;
-
-    SCREEN_PROLOGUE (pScreen, SourceValidate);
-
-    if (pDrawable->type == DRAWABLE_WINDOW)
-    {
-	pScreenPriv = dixLookupPrivate(&pScreen->devPrivates,miSpriteScreenKey);
-
-	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);
-
-    SCREEN_EPILOGUE (pScreen, SourceValidate);
-}
-
-static void
-miSpriteCopyWindow (WindowPtr pWindow, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
-{
-    ScreenPtr	pScreen = pWindow->drawable.pScreen;
-    miSpriteScreenPtr	    pScreenPriv;
-    DeviceIntPtr            pDev;
-    miCursorInfoPtr         pCursorInfo;
-
-    SCREEN_PROLOGUE (pScreen, CopyWindow);
-
-    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
-
-    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 &&
-                    miRectIn(prgnSrc, &pCursorInfo->saved) != rgnOUT)
-            {
-                SPRITE_DEBUG (("CopyWindow remove\n"));
-                miSpriteRemoveCursor (pDev, pScreen);
-            }
-        }
-    }
-
-    (*pScreen->CopyWindow) (pWindow, ptOldOrg, prgnSrc);
-    SCREEN_EPILOGUE (pScreen, CopyWindow);
-}
-
-static void
-miSpriteBlockHandler (int i, pointer blockData, pointer pTimeout,
-                      pointer pReadmask)
-{
-    ScreenPtr		pScreen = screenInfo.screens[i];
-    miSpriteScreenPtr	pPriv;
-    DeviceIntPtr            pDev;
-    miCursorInfoPtr         pCursorInfo;
-
-    pPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
-    SCREEN_PROLOGUE(pScreen, BlockHandler);
-
-    (*pScreen->BlockHandler) (i, blockData, pTimeout, pReadmask);
-
-    SCREEN_EPILOGUE(pScreen, BlockHandler);
-
-    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"));
-                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);
-            }
-        }
-    }
-}
-
-static void
-miSpriteInstallColormap (ColormapPtr pMap)
-{
-    ScreenPtr		pScreen = pMap->pScreen;
-    miSpriteScreenPtr	pPriv;
-
-    pPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
-    SCREEN_PROLOGUE(pScreen, InstallColormap);
-
-    (*pScreen->InstallColormap) (pMap);
-
-    SCREEN_EPILOGUE(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;
-    int			i;
-    int			updated;
-    VisualPtr		pVisual;
-    DeviceIntPtr        pDev;
-    miCursorInfoPtr     pCursorInfo;
-
-    pPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
-    SCREEN_PROLOGUE(pScreen, StoreColors);
-
-    (*pScreen->StoreColors) (pMap, ndef, pdef);
-
-    SCREEN_EPILOGUE(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 =
-	dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
-    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)
-{
-    miSpriteScreenPtr	pScreenPriv;
-    miCursorInfoPtr pCursorInfo;
-
-    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
-    if (!IsMaster(pDev) && !pDev->u.master)
-        return FALSE;
-
-    pCursorInfo = MISPRITE(pDev);
-
-    if (pCursor == pCursorInfo->pCursor)
-	pCursorInfo->checkPixels = TRUE;
-
-    return (*pScreenPriv->funcs->RealizeCursor) (pScreen, pCursor);
-}
-
-static Bool
-miSpriteUnrealizeCursor(DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor)
-{
-    miSpriteScreenPtr	pScreenPriv;
-
-    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
-    return (*pScreenPriv->funcs->UnrealizeCursor) (pScreen, pCursor);
-}
-
-static void
-miSpriteSetCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
-                   CursorPtr pCursor, int x, int y)
-{
-    miSpriteScreenPtr	pScreenPriv;
-    miCursorInfoPtr pPointer;
-
-    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
-
-    if (!IsMaster(pDev) && !pDev->u.master)
-        return;
-
-    pPointer = MISPRITE(pDev);
-
-    if (!pCursor)
-    {
-    	pPointer->shouldBeUp = FALSE;
-    	if (pPointer->isUp)
-	    miSpriteRemoveCursor (pDev, pScreen);
-	pPointer->pCursor = 0;
-	return;
-    }
-    pPointer->shouldBeUp = TRUE;
-    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) {
-#if 0
-        /* FIXME: Disabled for MPX, should be rewritten */
-	int	sx, sy;
-	/*
-	 * check to see if the old saved region
-	 * encloses the new sprite, in which case we use
-	 * the flicker-free MoveCursor primitive.
-	 */
-	sx = pointer->x - (int)pCursor->bits->xhot;
-	sy = pointer->y - (int)pCursor->bits->yhot;
-	if (sx + (int) pCursor->bits->width >= pointer->saved.x1 &&
-	    sx < pointer->saved.x2 &&
-	    sy + (int) pCursor->bits->height >= pointer->saved.y1 &&
-	    sy < pointer->saved.y2 &&
-	    (int) pCursor->bits->width + (2 * SPRITE_PAD) ==
-		pointer->saved.x2 - pointer->saved.x1 &&
-	    (int) pCursor->bits->height + (2 * SPRITE_PAD) ==
-		pointer->saved.y2 - pointer->saved.y1
-	    )
-	{
-	    DamageDrawInternal (pScreen, TRUE);
-	    miSpriteIsDown(pCursorInfo);
-	    if (!(sx >= pointer->saved.x1 &&
-                  sx + (int)pCursor->bits->width < pointer->saved.x2
-                  && sy >= pointer->saved.y1 &&
-                  sy + (int)pCursor->bits->height <
-                                pointer->saved.y2))
-            {
-		int oldx1, oldy1, dx, dy;
-
-		oldx1 = pointer->saved.x1;
-		oldy1 = pointer->saved.y1;
-		dx = oldx1 - (sx - SPRITE_PAD);
-		dy = oldy1 - (sy - SPRITE_PAD);
-		pointer->saved.x1 -= dx;
-		pointer->saved.y1 -= dy;
-		pointer->saved.x2 -= dx;
-		pointer->saved.y2 -= dy;
-		(void) (*pScreenPriv->funcs->ChangeSave) (pScreen,
-				pointer->saved.x1,
- 				pointer->saved.y1,
-                                pointer->saved.x2 -
-                                pointer->saved.x1,
-                                pointer->saved.y2 -
-                                pointer->saved.y1,
-				dx, dy);
-	    }
-	    (void) (*pScreenPriv->funcs->MoveCursor) (pScreen, pCursor,
-				  pointer->saved.x1,
- 				  pointer->saved.y1,
-                                  pointer->saved.x2 -
-                                  pointer->saved.x1,
-                                  pointer->saved.y2 -
-                                  pointer->saved.y1,
-				  sx - pointer->saved.x1,
-				  sy - pointer->saved.y1,
-				  pointer->colors[SOURCE_COLOR].pixel,
-				  pointer->colors[MASK_COLOR].pixel);
-	    miSpriteIsUp(pCursorInfo);
-	    DamageDrawInternal (pScreen, FALSE);
-	}
-	else
-#endif
-	{
-	    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)
-{
-    miSpriteScreenPtr	pScreenPriv;
-    CursorPtr pCursor;
-
-    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
-    if (!IsMaster(pDev) && !pDev->u.master)
-        return;
-
-    pCursor = MISPRITE(pDev)->pCursor;
-
-    miSpriteSetCursor (pDev, pScreen, pCursor, x, y);
-}
-
-
-static Bool
-miSpriteDeviceCursorInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)
-{
-    miSpriteScreenPtr pScreenPriv;
-    miCursorInfoPtr pCursorInfo;
-    int ret = FALSE;
-
-    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
-
-    pCursorInfo = xalloc(sizeof(miCursorInfoRec));
-    if (!pCursorInfo)
-        return FALSE;
-
-    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;
-
-    ret = (*pScreenPriv->funcs->DeviceCursorInitialize)(pDev, pScreen);
-    if (!ret)
-    {
-        xfree(pCursorInfo);
-        pCursorInfo = NULL;
-    }
-    dixSetPrivate(&pDev->devPrivates, miSpriteDevPrivatesKey, pCursorInfo);
-    return ret;
-}
-
-static void
-miSpriteDeviceCursorCleanup(DeviceIntPtr pDev, ScreenPtr pScreen)
-{
-    if (DevHasCursor(pDev))
-    {
-        miSpriteScreenPtr pScreenPriv;
-        pScreenPriv = dixLookupPrivate(&pScreen->devPrivates,
-                                       miSpriteScreenKey);
-
-        (*pScreenPriv->funcs->DeviceCursorCleanup)(pDev, pScreen);
-    }
-}
-
-/*
- * undraw/draw cursor
- */
-
-static void
-miSpriteRemoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen)
-{
-    miSpriteScreenPtr   pScreenPriv;
-    miCursorInfoPtr     pCursorInfo;
-
-
-    if (!IsMaster(pDev) && !pDev->u.master)
-        return;
-
-    DamageDrawInternal (pScreen, TRUE);
-    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
-    pCursorInfo = MISPRITE(pDev);
-
-    miSpriteIsDown(pCursorInfo);
-    pCursorInfo->pCacheWin = NullWindow;
-    miSpriteDisableDamage(pScreen, pScreenPriv);
-    if (!(*pScreenPriv->funcs->RestoreUnderCursor) (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 (!IsMaster(pDev) && !pDev->u.master)
-        return;
-
-    DamageDrawInternal (pScreen, TRUE);
-    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
-    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);
-
-    (*pScreenPriv->funcs->SaveUnderCursor) (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 (!IsMaster(pDev) && !pDev->u.master)
-        return;
-
-    DamageDrawInternal (pScreen, TRUE);
-    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
-    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 ((*pScreenPriv->funcs->PutUpCursor) (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)
-{
-    miSpriteScreenPtr   pScreenPriv;
-    int		    x, y, w, h;
-    int		    wpad, hpad;
-    CursorPtr	    pCursor;
-    miCursorInfoPtr pCursorInfo;
-
-    if (!IsMaster(pDev) && !pDev->u.master)
-        return;
-
-    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);
-    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;

+    miSpriteCursorFuncPtr    funcs;

+    DamagePtr	    pDamage;		/* damage tracking structure */

+    Bool            damageRegistered;

+} 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) \

+    ((!IsMaster(dev) && !dev->u.master) ? \

+       (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 int miSpriteScreenKeyIndex;

+static DevPrivateKey miSpriteScreenKey = &miSpriteScreenKeyIndex;

+static int miSpriteDevPrivatesKeyIndex;

+static DevPrivateKey miSpriteDevPrivatesKey = &miSpriteDevPrivatesKeyIndex;

+

+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);

+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(pScreen, field) ((pScreen)->field = \

+   ((miSpriteScreenPtr)dixLookupPrivate(&(pScreen)->devPrivates, \

+					miSpriteScreenKey))->field)

+#define SCREEN_EPILOGUE(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

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

+{

+    ScreenPtr		    pScreen = closure;

+    miSpriteScreenPtr	    pScreenPriv;

+    miCursorInfoPtr         pCursorInfo;

+    DeviceIntPtr            pDev;

+

+    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);

+

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

+    {

+        if (DevHasCursor(pDev))

+        {

+            pCursorInfo = MISPRITE(pDev);

+

+            if (pCursorInfo->isUp &&

+                pCursorInfo->pScreen == pScreen &&

+                miRectIn(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,

+                    miSpriteCursorFuncPtr   cursorFuncs,

+                    miPointerScreenFuncPtr  screenFuncs)

+{

+    miSpriteScreenPtr	pScreenPriv;

+    VisualPtr		pVisual;

+

+    if (!DamageSetup (pScreen))

+	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 = pScreen->BlockHandler;

+

+    pScreenPriv->DeviceCursorInitialize = pScreen->DeviceCursorInitialize;

+    pScreenPriv->DeviceCursorCleanup = pScreen->DeviceCursorCleanup;

+

+    pScreenPriv->pInstalledMap = NULL;

+    pScreenPriv->pColormap = NULL;

+    pScreenPriv->funcs = cursorFuncs;

+    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;

+

+    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;

+

+    pScreen->BlockHandler = miSpriteBlockHandler;

+

+    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;

+

+    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);

+    pScreen->CloseScreen = pScreenPriv->CloseScreen;

+    pScreen->GetImage = pScreenPriv->GetImage;

+    pScreen->GetSpans = pScreenPriv->GetSpans;

+    pScreen->SourceValidate = pScreenPriv->SourceValidate;

+    pScreen->BlockHandler = pScreenPriv->BlockHandler;

+    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;

+    miSpriteScreenPtr    pScreenPriv;

+    DeviceIntPtr    pDev;

+    miCursorInfoPtr pCursorInfo;

+

+    SCREEN_PROLOGUE (pScreen, GetImage);

+

+    if (pDrawable->type == DRAWABLE_WINDOW)

+    {

+        pScreenPriv = dixLookupPrivate(&pScreen->devPrivates,miSpriteScreenKey);

+        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 (pScreen, GetImage);

+}

+

+static void

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

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

+{

+    ScreenPtr		    pScreen = pDrawable->pScreen;

+    miSpriteScreenPtr	    pScreenPriv;

+    DeviceIntPtr            pDev;

+    miCursorInfoPtr         pCursorInfo;

+

+    SCREEN_PROLOGUE (pScreen, GetSpans);

+

+    if (pDrawable->type == DRAWABLE_WINDOW)

+    {

+        pScreenPriv = dixLookupPrivate(&pScreen->devPrivates,miSpriteScreenKey);

+

+        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 (pScreen, GetSpans);

+}

+

+static void

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

+                        int height)

+{

+    ScreenPtr		    pScreen = pDrawable->pScreen;

+    miSpriteScreenPtr	    pScreenPriv;

+    DeviceIntPtr            pDev;

+    miCursorInfoPtr         pCursorInfo;

+

+    SCREEN_PROLOGUE (pScreen, SourceValidate);

+

+    if (pDrawable->type == DRAWABLE_WINDOW)

+    {

+	pScreenPriv = dixLookupPrivate(&pScreen->devPrivates,miSpriteScreenKey);

+

+	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);

+

+    SCREEN_EPILOGUE (pScreen, SourceValidate);

+}

+

+static void

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

+{

+    ScreenPtr	pScreen = pWindow->drawable.pScreen;

+    miSpriteScreenPtr	    pScreenPriv;

+    DeviceIntPtr            pDev;

+    miCursorInfoPtr         pCursorInfo;

+

+    SCREEN_PROLOGUE (pScreen, CopyWindow);

+

+    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);

+

+    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 &&

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

+            {

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

+                miSpriteRemoveCursor (pDev, pScreen);

+            }

+        }

+    }

+

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

+    SCREEN_EPILOGUE (pScreen, CopyWindow);

+}

+

+static void

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

+                      pointer pReadmask)

+{

+    ScreenPtr		pScreen = screenInfo.screens[i];

+    miSpriteScreenPtr	pPriv;

+    DeviceIntPtr            pDev;

+    miCursorInfoPtr         pCursorInfo;

+

+    pPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);

+    SCREEN_PROLOGUE(pScreen, BlockHandler);

+

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

+

+    SCREEN_EPILOGUE(pScreen, BlockHandler);

+

+    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"));

+                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);

+            }

+        }

+    }

+}

+

+static void

+miSpriteInstallColormap (ColormapPtr pMap)

+{

+    ScreenPtr		pScreen = pMap->pScreen;

+    miSpriteScreenPtr	pPriv;

+

+    pPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);

+    SCREEN_PROLOGUE(pScreen, InstallColormap);

+

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

+

+    SCREEN_EPILOGUE(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;

+    int			i;

+    int			updated;

+    VisualPtr		pVisual;

+    DeviceIntPtr        pDev;

+    miCursorInfoPtr     pCursorInfo;

+

+    pPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);

+    SCREEN_PROLOGUE(pScreen, StoreColors);

+

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

+

+    SCREEN_EPILOGUE(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 =

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

+    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)

+{

+    miSpriteScreenPtr	pScreenPriv;

+    miCursorInfoPtr pCursorInfo;

+

+    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);

+    if (!IsMaster(pDev) && !pDev->u.master)

+        return FALSE;

+

+    pCursorInfo = MISPRITE(pDev);

+

+    if (pCursor == pCursorInfo->pCursor)

+	pCursorInfo->checkPixels = TRUE;

+

+    return (*pScreenPriv->funcs->RealizeCursor) (pScreen, pCursor);

+}

+

+static Bool

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

+{

+    miSpriteScreenPtr	pScreenPriv;

+

+    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);

+    return (*pScreenPriv->funcs->UnrealizeCursor) (pScreen, pCursor);

+}

+

+static void

+miSpriteSetCursor (DeviceIntPtr pDev, ScreenPtr pScreen,

+                   CursorPtr pCursor, int x, int y)

+{

+    miSpriteScreenPtr	pScreenPriv;

+    miCursorInfoPtr pPointer;

+

+    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);

+

+    if (!IsMaster(pDev) && !pDev->u.master)

+        return;

+

+    pPointer = MISPRITE(pDev);

+

+    if (!pCursor)

+    {

+    	pPointer->shouldBeUp = FALSE;

+    	if (pPointer->isUp)

+	    miSpriteRemoveCursor (pDev, pScreen);

+	pPointer->pCursor = 0;

+	return;

+    }

+    pPointer->shouldBeUp = TRUE;

+    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) {

+#if 0

+        /* FIXME: Disabled for MPX, should be rewritten */

+	int	sx, sy;

+	/*

+	 * check to see if the old saved region

+	 * encloses the new sprite, in which case we use

+	 * the flicker-free MoveCursor primitive.

+	 */

+	sx = pointer->x - (int)pCursor->bits->xhot;

+	sy = pointer->y - (int)pCursor->bits->yhot;

+	if (sx + (int) pCursor->bits->width >= pointer->saved.x1 &&

+	    sx < pointer->saved.x2 &&

+	    sy + (int) pCursor->bits->height >= pointer->saved.y1 &&

+	    sy < pointer->saved.y2 &&

+	    (int) pCursor->bits->width + (2 * SPRITE_PAD) ==

+		pointer->saved.x2 - pointer->saved.x1 &&

+	    (int) pCursor->bits->height + (2 * SPRITE_PAD) ==

+		pointer->saved.y2 - pointer->saved.y1

+	    )

+	{

+	    DamageDrawInternal (pScreen, TRUE);

+	    miSpriteIsDown(pCursorInfo);

+	    if (!(sx >= pointer->saved.x1 &&

+                  sx + (int)pCursor->bits->width < pointer->saved.x2

+                  && sy >= pointer->saved.y1 &&

+                  sy + (int)pCursor->bits->height <

+                                pointer->saved.y2))

+            {

+		int oldx1, oldy1, dx, dy;

+

+		oldx1 = pointer->saved.x1;

+		oldy1 = pointer->saved.y1;

+		dx = oldx1 - (sx - SPRITE_PAD);

+		dy = oldy1 - (sy - SPRITE_PAD);

+		pointer->saved.x1 -= dx;

+		pointer->saved.y1 -= dy;

+		pointer->saved.x2 -= dx;

+		pointer->saved.y2 -= dy;

+		(void) (*pScreenPriv->funcs->ChangeSave) (pScreen,

+				pointer->saved.x1,

+ 				pointer->saved.y1,

+                                pointer->saved.x2 -

+                                pointer->saved.x1,

+                                pointer->saved.y2 -

+                                pointer->saved.y1,

+				dx, dy);

+	    }

+	    (void) (*pScreenPriv->funcs->MoveCursor) (pScreen, pCursor,

+				  pointer->saved.x1,

+ 				  pointer->saved.y1,

+                                  pointer->saved.x2 -

+                                  pointer->saved.x1,

+                                  pointer->saved.y2 -

+                                  pointer->saved.y1,

+				  sx - pointer->saved.x1,

+				  sy - pointer->saved.y1,

+				  pointer->colors[SOURCE_COLOR].pixel,

+				  pointer->colors[MASK_COLOR].pixel);

+	    miSpriteIsUp(pCursorInfo);

+	    DamageDrawInternal (pScreen, FALSE);

+	}

+	else

+#endif

+	{

+	    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)

+{

+    miSpriteScreenPtr	pScreenPriv;

+    CursorPtr pCursor;

+

+    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);

+    if (!IsMaster(pDev) && !pDev->u.master)

+        return;

+

+    pCursor = MISPRITE(pDev)->pCursor;

+

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

+}

+

+

+static Bool

+miSpriteDeviceCursorInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)

+{

+    miSpriteScreenPtr pScreenPriv;

+    miCursorInfoPtr pCursorInfo;

+    int ret = FALSE;

+

+    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);

+

+    pCursorInfo = malloc(sizeof(miCursorInfoRec));

+    if (!pCursorInfo)

+        return FALSE;

+

+    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;

+

+    ret = (*pScreenPriv->funcs->DeviceCursorInitialize)(pDev, pScreen);

+    if (!ret)

+    {

+        free(pCursorInfo);

+        pCursorInfo = NULL;

+    }

+    dixSetPrivate(&pDev->devPrivates, miSpriteDevPrivatesKey, pCursorInfo);

+    return ret;

+}

+

+static void

+miSpriteDeviceCursorCleanup(DeviceIntPtr pDev, ScreenPtr pScreen)

+{

+    if (DevHasCursor(pDev))

+    {

+        miSpriteScreenPtr pScreenPriv;

+        pScreenPriv = dixLookupPrivate(&pScreen->devPrivates,

+                                       miSpriteScreenKey);

+

+        (*pScreenPriv->funcs->DeviceCursorCleanup)(pDev, pScreen);

+    }

+}

+

+/*

+ * undraw/draw cursor

+ */

+

+static void

+miSpriteRemoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen)

+{

+    miSpriteScreenPtr   pScreenPriv;

+    miCursorInfoPtr     pCursorInfo;

+

+

+    if (!IsMaster(pDev) && !pDev->u.master)

+        return;

+

+    DamageDrawInternal (pScreen, TRUE);

+    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);

+    pCursorInfo = MISPRITE(pDev);

+

+    miSpriteIsDown(pCursorInfo);

+    pCursorInfo->pCacheWin = NullWindow;

+    miSpriteDisableDamage(pScreen, pScreenPriv);

+    if (!(*pScreenPriv->funcs->RestoreUnderCursor) (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 (!IsMaster(pDev) && !pDev->u.master)

+        return;

+

+    DamageDrawInternal (pScreen, TRUE);

+    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);

+    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);

+

+    (*pScreenPriv->funcs->SaveUnderCursor) (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 (!IsMaster(pDev) && !pDev->u.master)

+        return;

+

+    DamageDrawInternal (pScreen, TRUE);

+    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);

+    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 ((*pScreenPriv->funcs->PutUpCursor) (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)

+{

+    miSpriteScreenPtr   pScreenPriv;

+    int		    x, y, w, h;

+    int		    wpad, hpad;

+    CursorPtr	    pCursor;

+    miCursorInfoPtr pCursorInfo;

+

+    if (!IsMaster(pDev) && !pDev->u.master)

+        return;

+

+    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, miSpriteScreenKey);

+    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;

+}

+

diff --git a/xorg-server/mi/miwideline.c b/xorg-server/mi/miwideline.c
index e726d4260..18b82cdcb 100644
--- a/xorg-server/mi/miwideline.c
+++ b/xorg-server/mi/miwideline.c
@@ -1,2264 +1,2197 @@
-/*
-
-Copyright 1988, 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.
-
-*/
-
-/* Author:  Keith Packard, MIT X Consortium */
-
-/*
- * Mostly integer wideline code.  Uses a technique similar to
- * bresenham zero-width lines, except walks an X edge
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <stdio.h>
-#ifdef _XOPEN_SOURCE
-#include <math.h>
-#else
-#define _XOPEN_SOURCE	/* to get prototype for hypot on some systems */
-#include <math.h>
-#undef _XOPEN_SOURCE
-#endif
-#ifdef _MSC_VER
-#define hypot _hypot
-#endif
-
-#include <X11/X.h>
-#include "windowstr.h"
-#include "gcstruct.h"
-#include "regionstr.h"
-#include "miwideline.h"
-#include "mi.h"
-
-/*
- * interface data to span-merging polygon filler
- */
-
-typedef struct _SpanData {
-    SpanGroup	fgGroup, bgGroup;
-} SpanDataRec, *SpanDataPtr;
-
-static void
-AppendSpanGroup(GCPtr pGC, unsigned long pixel, Spans *spanPtr, SpanDataPtr spanData)
-{
-    SpanGroup *group, *othergroup = NULL;
-    if (pixel == pGC->fgPixel)
-    {
-	group = &spanData->fgGroup;
-	if (pGC->lineStyle == LineDoubleDash)
-	    othergroup = &spanData->bgGroup;
-    }
-    else
-    {
-	group = &spanData->bgGroup;
-	othergroup = &spanData->fgGroup;
-    }
-    miAppendSpans (group, othergroup, spanPtr);
-}
-
-
-static void miLineArc(DrawablePtr pDraw, GCPtr pGC,
-		      unsigned long pixel, SpanDataPtr spanData,
-		      LineFacePtr leftFace,
-		      LineFacePtr rightFace,
-		      double xorg, double yorg, Bool isInt);
-
-
-/*
- * spans-based polygon filler
- */
-
-static void
-miFillPolyHelper (DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel,
-		  SpanDataPtr spanData, int y, int overall_height,
-		  PolyEdgePtr left, PolyEdgePtr right,
-		  int left_count, int right_count)
-{
-    int left_x = 0, left_e = 0;
-    int	left_stepx = 0;
-    int	left_signdx = 0;
-    int	left_dy = 0, left_dx = 0;
-
-    int right_x = 0, right_e = 0;
-    int	right_stepx = 0;
-    int	right_signdx = 0;
-    int	right_dy = 0, right_dx = 0;
-
-    int	height = 0;
-    int	left_height = 0, right_height = 0;
-
-    DDXPointPtr ppt;
-    DDXPointPtr pptInit = NULL;
-    int 	*pwidth;
-    int 	*pwidthInit = NULL;
-    XID		oldPixel;
-    int		xorg;
-    Spans	spanRec;
-
-    left_height = 0;
-    right_height = 0;
-    
-    if (!spanData)
-    {
-    	pptInit = xalloc (overall_height * sizeof(*ppt));
-    	if (!pptInit)
-	    return;
-    	pwidthInit = xalloc (overall_height * sizeof(*pwidth));
-    	if (!pwidthInit)
-    	{
-	    xfree (pptInit);
-	    return;
-    	}
-	ppt = pptInit;
-	pwidth = pwidthInit;
-    	oldPixel = pGC->fgPixel;
-    	if (pixel != oldPixel)
-    	{
-	    XID tmpPixel = (XID)pixel;
-    	    DoChangeGC (pGC, GCForeground, &tmpPixel, FALSE);
-    	    ValidateGC (pDrawable, pGC);
-    	}
-    }
-    else
-    {
-	spanRec.points = xalloc (overall_height * sizeof (*ppt));
-	if (!spanRec.points)
-	    return;
-	spanRec.widths = xalloc (overall_height * sizeof (int));
-	if (!spanRec.widths)
-	{
-	    xfree (spanRec.points);
-	    return;
-	}
-	ppt = spanRec.points;
-	pwidth = spanRec.widths;
-    }
-
-    xorg = 0;
-    if (pGC->miTranslate)
-    {
-	y += pDrawable->y;
-	xorg = pDrawable->x;
-    }
-    while ((left_count || left_height) &&
-	   (right_count || right_height))
-    {
-	if (!left_height && left_count)
-	{
-	    left_height = left->height;
-	    left_x = left->x;
-	    left_stepx = left->stepx;
-	    left_signdx = left->signdx;
-	    left_e = left->e;
-	    left_dy = left->dy;
-	    left_dx = left->dx;
-	    --left_count;
-	    ++left;
-	}
-
-	if (!right_height && right_count)
-	{
-	    right_height = right->height;
-	    right_x = right->x;
-	    right_stepx = right->stepx;
-	    right_signdx = right->signdx;
-	    right_e = right->e;
-	    right_dy = right->dy;
-	    right_dx = right->dx;
-	    --right_count;
-	    ++right;
-	}
-
-	height = left_height;
-	if (height > right_height)
-	    height = right_height;
-
-	left_height -= height;
-	right_height -= height;
-
-	while (--height >= 0)
-	{
-	    if (right_x >= left_x)
-	    {
-		ppt->y = y;
-		ppt->x = left_x + xorg;
-		ppt++;
-		*pwidth++ = right_x - left_x + 1;
-	    }
-	    y++;
-
-	    left_x += left_stepx;
-	    left_e += left_dx;
-	    if (left_e > 0)
-	    {
-		left_x += left_signdx;
-		left_e -= left_dy;
-	    }
-
-	    right_x += right_stepx;
-	    right_e += right_dx;
-	    if (right_e > 0)
-	    {
-		right_x += right_signdx;
-		right_e -= right_dy;
-	    }
-	}
-    }
-    if (!spanData)
-    {
-    	(*pGC->ops->FillSpans) (pDrawable, pGC, ppt - pptInit, pptInit, pwidthInit, TRUE);
-    	xfree (pwidthInit);
-    	xfree (pptInit);
-    	if (pixel != oldPixel)
-    	{
-	    DoChangeGC (pGC, GCForeground, &oldPixel, FALSE);
-	    ValidateGC (pDrawable, pGC);
-    	}
-    }
-    else
-    {
-	spanRec.count = ppt - spanRec.points;
-	AppendSpanGroup (pGC, pixel, &spanRec, spanData);
-    }
-}
-
-static void
-miFillRectPolyHelper (
-    DrawablePtr	pDrawable,
-    GCPtr	pGC,
-    unsigned long   pixel,
-    SpanDataPtr	spanData,
-    int		x,
-    int		y,
-    int		w,
-    int		h)
-{
-    DDXPointPtr ppt;
-    int 	*pwidth;
-    XID		oldPixel;
-    Spans	spanRec;
-    xRectangle  rect;
-
-    if (!spanData)
-    {
-	rect.x = x;
-	rect.y = y;
-	rect.width = w;
-	rect.height = h;
-    	oldPixel = pGC->fgPixel;
-    	if (pixel != oldPixel)
-    	{
-	    XID tmpPixel = (XID)pixel;
-    	    DoChangeGC (pGC, GCForeground, &tmpPixel, FALSE);
-    	    ValidateGC (pDrawable, pGC);
-    	}
-	(*pGC->ops->PolyFillRect) (pDrawable, pGC, 1, &rect);
-    	if (pixel != oldPixel)
-    	{
-	    DoChangeGC (pGC, GCForeground, &oldPixel, FALSE);
-	    ValidateGC (pDrawable, pGC);
-    	}
-    }
-    else
-    {
-	spanRec.points = xalloc (h * sizeof (*ppt));
-	if (!spanRec.points)
-	    return;
-	spanRec.widths = xalloc (h * sizeof (int));
-	if (!spanRec.widths)
-	{
-	    xfree (spanRec.points);
-	    return;
-	}
-	ppt = spanRec.points;
-	pwidth = spanRec.widths;
-
-    	if (pGC->miTranslate)
-    	{
-	    y += pDrawable->y;
-	    x += pDrawable->x;
-    	}
-	while (h--)
-	{
-	    ppt->x = x;
-	    ppt->y = y;
-	    ppt++;
-	    *pwidth++ = w;
-	    y++;
-	}
-	spanRec.count = ppt - spanRec.points;
-	AppendSpanGroup (pGC, pixel, &spanRec, spanData);
-    }
-}
-
-/* static */ int
-miPolyBuildEdge (
-    double	x0,
-    double	y0,
-    double	k,  /* x0 * dy - y0 * dx */
-    int		dx,
-    int		dy,
-    int		xi,
-    int		yi,
-    int		left,
-    PolyEdgePtr edge)
-{
-    int	    x, y, e;
-    int	    xady;
-
-    if (dy < 0)
-    {
-	dy = -dy;
-	dx = -dx;
-	k = -k;
-    }
-
-#ifdef NOTDEF
-    {
-	double	realk, kerror;
-    	realk = x0 * dy - y0 * dx;
-    	kerror = Fabs (realk - k);
-    	if (kerror > .1)
-	    printf ("realk: %g k: %g\n", realk, k);
-    }
-#endif
-    y = ICEIL (y0);
-    xady = ICEIL (k) + y * dx;
-
-    if (xady <= 0)
-	x = - (-xady / dy) - 1;
-    else
-	x = (xady - 1) / dy;
-
-    e = xady - x * dy;
-
-    if (dx >= 0)
-    {
-	edge->signdx = 1;
-	edge->stepx = dx / dy;
-	edge->dx = dx % dy;
-    }
-    else
-    {
-	edge->signdx = -1;
-	edge->stepx = - (-dx / dy);
-	edge->dx = -dx % dy;
-	e = dy - e + 1;
-    }
-    edge->dy = dy;
-    edge->x = x + left + xi;
-    edge->e = e - dy;	/* bias to compare against 0 instead of dy */
-    return y + yi;
-}
-
-#define StepAround(v, incr, max) (((v) + (incr) < 0) ? (max - 1) : ((v) + (incr) == max) ? 0 : ((v) + (incr)))
-
-/* static */ int
-miPolyBuildPoly (
-    PolyVertexPtr	vertices,
-    PolySlopePtr	slopes,
-    int			count,
-    int			xi,
-    int			yi,
-    PolyEdgePtr		left,
-    PolyEdgePtr		right,
-    int			*pnleft,
-    int			*pnright,
-    int			*h)
-{
-    int 	top, bottom;
-    double 	miny, maxy;
-    int 	i;
-    int		j;
-    int		clockwise;
-    int		slopeoff;
-    int 	s;
-    int 	nright, nleft;
-    int	   	y, lasty = 0, bottomy, topy = 0;
-
-    /* find the top of the polygon */
-    maxy = miny = vertices[0].y;
-    bottom = top = 0;
-    for (i = 1; i < count; i++)
-    {
-	if (vertices[i].y < miny)
-	{
-	    top = i;
-	    miny = vertices[i].y;
-	}
-	if (vertices[i].y >= maxy)
-	{
-	    bottom = i;
-	    maxy = vertices[i].y;
-	}
-    }
-    clockwise = 1;
-    slopeoff = 0;
-
-    i = top;
-    j = StepAround (top, -1, count);
-
-    if (slopes[j].dy * slopes[i].dx > slopes[i].dy * slopes[j].dx)
-    {
-	clockwise = -1;
-	slopeoff = -1;
-    }
-
-    bottomy = ICEIL (maxy) + yi;
-
-    nright = 0;
-
-    s = StepAround (top, slopeoff, count);
-    i = top;
-    while (i != bottom)
-    {
-	if (slopes[s].dy != 0)
-	{
-	    y = miPolyBuildEdge (vertices[i].x, vertices[i].y,
-			slopes[s].k,
-			slopes[s].dx, slopes[s].dy,
-			xi, yi, 0,
-			&right[nright]);
-	    if (nright != 0)
-	    	right[nright-1].height = y - lasty;
-	    else
-	    	topy = y;
-	    nright++;
-	    lasty = y;
-	}
-
-	i = StepAround (i, clockwise, count);
-	s = StepAround (s, clockwise, count);
-    }
-    if (nright != 0)
-	right[nright-1].height = bottomy - lasty;
-
-    if (slopeoff == 0)
-	slopeoff = -1;
-    else
-	slopeoff = 0;
-
-    nleft = 0;
-    s = StepAround (top, slopeoff, count);
-    i = top;
-    while (i != bottom)
-    {
-	if (slopes[s].dy != 0)
-	{
-	    y = miPolyBuildEdge (vertices[i].x, vertices[i].y,
-			   slopes[s].k,
-		       	   slopes[s].dx,  slopes[s].dy, xi, yi, 1,
-		       	   &left[nleft]);
-    
-	    if (nleft != 0)
-	    	left[nleft-1].height = y - lasty;
-	    nleft++;
-	    lasty = y;
-	}
-	i = StepAround (i, -clockwise, count);
-	s = StepAround (s, -clockwise, count);
-    }
-    if (nleft != 0)
-	left[nleft-1].height = bottomy - lasty;
-    *pnleft = nleft;
-    *pnright = nright;
-    *h = bottomy - topy;
-    return topy;
-}
-
-static void
-miLineOnePoint (
-    DrawablePtr	    pDrawable,
-    GCPtr	    pGC,
-    unsigned long   pixel,
-    SpanDataPtr	    spanData,
-    int		    x,
-    int		    y)
-{
-    DDXPointRec pt;
-    int	    wid;
-    unsigned long	oldPixel;
-
-    MILINESETPIXEL (pDrawable, pGC, pixel, oldPixel);
-    if (pGC->fillStyle == FillSolid)
-    {
-	pt.x = x;
-	pt.y = y;
-	(*pGC->ops->PolyPoint) (pDrawable, pGC, CoordModeOrigin, 1, &pt);
-    }
-    else
-    {
-	wid = 1;
-	if (pGC->miTranslate) 
-	{
-	    x += pDrawable->x;
-	    y += pDrawable->y;
-	}
-	pt.x = x;
-	pt.y = y;
-	(*pGC->ops->FillSpans) (pDrawable, pGC, 1, &pt, &wid, TRUE);
-    }
-    MILINERESETPIXEL (pDrawable, pGC, pixel, oldPixel);
-}
-
-static void
-miLineJoin (
-    DrawablePtr 	pDrawable,
-    GCPtr		pGC,
-    unsigned long	pixel,
-    SpanDataPtr		spanData,
-    LineFacePtr		pLeft,
-    LineFacePtr 	pRight)
-{
-    double	    mx = 0, my = 0;
-    double	    denom = 0.0;
-    PolyVertexRec   vertices[4];
-    PolySlopeRec    slopes[4];
-    int		    edgecount;
-    PolyEdgeRec	    left[4], right[4];
-    int		    nleft, nright;
-    int		    y, height;
-    int		    swapslopes;
-    int		    joinStyle = pGC->joinStyle;
-    int		    lw = pGC->lineWidth;
-
-    if (lw == 1 && !spanData) {
-	/* See if one of the lines will draw the joining pixel */
-	if (pLeft->dx > 0 || (pLeft->dx == 0 && pLeft->dy > 0))
-	    return;
-	if (pRight->dx > 0 || (pRight->dx == 0 && pRight->dy > 0))
-	    return;
-	if (joinStyle != JoinRound) {
-    	    denom = - pLeft->dx * (double)pRight->dy + pRight->dx * (double)pLeft->dy;
-    	    if (denom == 0)
-	    	return;	/* no join to draw */
-	}
-	if (joinStyle != JoinMiter) {
-	    miLineOnePoint (pDrawable, pGC, pixel, spanData, pLeft->x, pLeft->y);
-	    return;
-	}
-    } else {
-    	if (joinStyle == JoinRound)
-    	{
-	    miLineArc(pDrawable, pGC, pixel, spanData,
-		      pLeft, pRight,
-		      (double)0.0, (double)0.0, TRUE);
-	    return;
-    	}
-    	denom = - pLeft->dx * (double)pRight->dy + pRight->dx * (double)pLeft->dy;
-    	if (denom == 0.0)
-	    return;	/* no join to draw */
-    }
-
-    swapslopes = 0;
-    if (denom > 0)
-    {
-	pLeft->xa = -pLeft->xa;
-	pLeft->ya = -pLeft->ya;
-	pLeft->dx = -pLeft->dx;
-	pLeft->dy = -pLeft->dy;
-    }
-    else
-    {
-	swapslopes = 1;
-	pRight->xa = -pRight->xa;
-	pRight->ya = -pRight->ya;
-	pRight->dx = -pRight->dx;
-	pRight->dy = -pRight->dy;
-    }
-
-    vertices[0].x = pRight->xa;
-    vertices[0].y = pRight->ya;
-    slopes[0].dx = -pRight->dy;
-    slopes[0].dy =  pRight->dx;
-    slopes[0].k = 0;
-
-    vertices[1].x = 0;
-    vertices[1].y = 0;
-    slopes[1].dx =  pLeft->dy;
-    slopes[1].dy = -pLeft->dx;
-    slopes[1].k = 0;
-
-    vertices[2].x = pLeft->xa;
-    vertices[2].y = pLeft->ya;
-
-    if (joinStyle == JoinMiter)
-    {
-    	my = (pLeft->dy  * (pRight->xa * pRight->dy - pRight->ya * pRight->dx) -
-              pRight->dy * (pLeft->xa  * pLeft->dy  - pLeft->ya  * pLeft->dx )) /
-	      denom;
-    	if (pLeft->dy != 0)
-    	{
-	    mx = pLeft->xa + (my - pLeft->ya) *
-			    (double) pLeft->dx / (double) pLeft->dy;
-    	}
-    	else
-    	{
-	    mx = pRight->xa + (my - pRight->ya) *
-			    (double) pRight->dx / (double) pRight->dy;
-    	}
-	/* check miter limit */
-	if ((mx * mx + my * my) * 4 > SQSECANT * lw * lw)
-	    joinStyle = JoinBevel;
-    }
-
-    if (joinStyle == JoinMiter)
-    {
-	slopes[2].dx = pLeft->dx;
-	slopes[2].dy = pLeft->dy;
-	slopes[2].k =  pLeft->k;
-	if (swapslopes)
-	{
-	    slopes[2].dx = -slopes[2].dx;
-	    slopes[2].dy = -slopes[2].dy;
-	    slopes[2].k  = -slopes[2].k;
-	}
-	vertices[3].x = mx;
-	vertices[3].y = my;
-	slopes[3].dx = pRight->dx;
-	slopes[3].dy = pRight->dy;
-	slopes[3].k  = pRight->k;
-	if (swapslopes)
-	{
-	    slopes[3].dx = -slopes[3].dx;
-	    slopes[3].dy = -slopes[3].dy;
-	    slopes[3].k  = -slopes[3].k;
-	}
-	edgecount = 4;
-    }
-    else
-    {
-	double	scale, dx, dy, adx, ady;
-
-	adx = dx = pRight->xa - pLeft->xa;
-	ady = dy = pRight->ya - pLeft->ya;
-	if (adx < 0)
-	    adx = -adx;
-	if (ady < 0)
-	    ady = -ady;
-	scale = ady;
-	if (adx > ady)
-	    scale = adx;
-	slopes[2].dx = (dx * 65536) / scale;
-	slopes[2].dy = (dy * 65536) / scale;
-	slopes[2].k = ((pLeft->xa + pRight->xa) * slopes[2].dy -
-		       (pLeft->ya + pRight->ya) * slopes[2].dx) / 2.0;
-	edgecount = 3;
-    }
-
-    y = miPolyBuildPoly (vertices, slopes, edgecount, pLeft->x, pLeft->y,
-		   left, right, &nleft, &nright, &height);
-    miFillPolyHelper (pDrawable, pGC, pixel, spanData, y, height, left, right, nleft, nright);
-}
-
-static int
-miLineArcI (
-    DrawablePtr	    pDraw,
-    GCPtr	    pGC,
-    int		    xorg,
-    int		    yorg,
-    DDXPointPtr	    points,
-    int		    *widths)
-{
-    DDXPointPtr tpts, bpts;
-    int *twids, *bwids;
-    int x, y, e, ex, slw;
-
-    tpts = points;
-    twids = widths;
-    if (pGC->miTranslate)
-    {
-	xorg += pDraw->x;
-	yorg += pDraw->y;
-    }
-    slw = pGC->lineWidth;
-    if (slw == 1)
-    {
-	tpts->x = xorg;
-	tpts->y = yorg;
-	*twids = 1;
-	return 1;
-    }
-    bpts = tpts + slw;
-    bwids = twids + slw;
-    y = (slw >> 1) + 1;
-    if (slw & 1)
-	e = - ((y << 2) + 3);
-    else
-	e = - (y << 3);
-    ex = -4;
-    x = 0;
-    while (y)
-    {
-	e += (y << 3) - 4;
-	while (e >= 0)
-	{
-	    x++;
-	    e += (ex = -((x << 3) + 4));
-	}
-	y--;
-	slw = (x << 1) + 1;
-	if ((e == ex) && (slw > 1))
-	    slw--;
-	tpts->x = xorg - x;
-	tpts->y = yorg - y;
-	tpts++;
-	*twids++ = slw;
-	if ((y != 0) && ((slw > 1) || (e != ex)))
-	{
-	    bpts--;
-	    bpts->x = xorg - x;
-	    bpts->y = yorg + y;
-	    *--bwids = slw;
-	}
-    }
-    return (pGC->lineWidth);
-}
-
-#define CLIPSTEPEDGE(edgey,edge,edgeleft) \
-    if (ybase == edgey) \
-    { \
-	if (edgeleft) \
-	{ \
-	    if (edge->x > xcl) \
-		xcl = edge->x; \
-	} \
-	else \
-	{ \
-	    if (edge->x < xcr) \
-		xcr = edge->x; \
-	} \
-	edgey++; \
-	edge->x += edge->stepx; \
-	edge->e += edge->dx; \
-	if (edge->e > 0) \
-	{ \
-	    edge->x += edge->signdx; \
-	    edge->e -= edge->dy; \
-	} \
-    }
-
-static int
-miLineArcD (
-    DrawablePtr	    pDraw,
-    GCPtr	    pGC,
-    double	    xorg,
-    double	    yorg,
-    DDXPointPtr	    points,
-    int		    *widths,
-    PolyEdgePtr	    edge1,
-    int		    edgey1,
-    Bool	    edgeleft1,
-    PolyEdgePtr	    edge2,
-    int		    edgey2,
-    Bool	    edgeleft2)
-{
-    DDXPointPtr pts;
-    int *wids;
-    double radius, x0, y0, el, er, yk, xlk, xrk, k;
-    int xbase, ybase, y, boty, xl, xr, xcl, xcr;
-    int ymin, ymax;
-    Bool edge1IsMin, edge2IsMin;
-    int ymin1, ymin2;
-
-    pts = points;
-    wids = widths;
-    xbase = floor(xorg);
-    x0 = xorg - xbase;
-    ybase = ICEIL (yorg);
-    y0 = yorg - ybase;
-    if (pGC->miTranslate)
-    {
-	xbase += pDraw->x;
-	ybase += pDraw->y;
-	edge1->x += pDraw->x;
-	edge2->x += pDraw->x;
-	edgey1 += pDraw->y;
-	edgey2 += pDraw->y;
-    }
-    xlk = x0 + x0 + 1.0;
-    xrk = x0 + x0 - 1.0;
-    yk = y0 + y0 - 1.0;
-    radius = ((double)pGC->lineWidth) / 2.0;
-    y = floor(radius - y0 + 1.0);
-    ybase -= y;
-    ymin = ybase;
-    ymax = 65536;
-    edge1IsMin = FALSE;
-    ymin1 = edgey1;
-    if (edge1->dy >= 0)
-    {
-    	if (!edge1->dy)
-    	{
-	    if (edgeleft1)
-	    	edge1IsMin = TRUE;
-	    else
-	    	ymax = edgey1;
-	    edgey1 = 65536;
-    	}
-    	else
-    	{
-	    if ((edge1->signdx < 0) == edgeleft1)
-	    	edge1IsMin = TRUE;
-    	}
-    }
-    edge2IsMin = FALSE;
-    ymin2 = edgey2;
-    if (edge2->dy >= 0)
-    {
-    	if (!edge2->dy)
-    	{
-	    if (edgeleft2)
-	    	edge2IsMin = TRUE;
-	    else
-	    	ymax = edgey2;
-	    edgey2 = 65536;
-    	}
-    	else
-    	{
-	    if ((edge2->signdx < 0) == edgeleft2)
-	    	edge2IsMin = TRUE;
-    	}
-    }
-    if (edge1IsMin)
-    {
-	ymin = ymin1;
-	if (edge2IsMin && ymin1 > ymin2)
-	    ymin = ymin2;
-    } else if (edge2IsMin)
-	ymin = ymin2;
-    el = radius * radius - ((y + y0) * (y + y0)) - (x0 * x0);
-    er = el + xrk;
-    xl = 1;
-    xr = 0;
-    if (x0 < 0.5)
-    {
-	xl = 0;
-	el -= xlk;
-    }
-    boty = (y0 < -0.5) ? 1 : 0;
-    if (ybase + y - boty > ymax)
-	boty = ymax - ybase - y;
-    while (y > boty)
-    {
-	k = (y << 1) + yk;
-	er += k;
-	while (er > 0.0)
-	{
-	    xr++;
-	    er += xrk - (xr << 1);
-	}
-	el += k;
-	while (el >= 0.0)
-	{
-	    xl--;
-	    el += (xl << 1) - xlk;
-	}
-	y--;
-	ybase++;
-	if (ybase < ymin)
-	    continue;
-	xcl = xl + xbase;
-	xcr = xr + xbase;
-	CLIPSTEPEDGE(edgey1, edge1, edgeleft1);
-	CLIPSTEPEDGE(edgey2, edge2, edgeleft2);
-	if (xcr >= xcl)
-	{
-	    pts->x = xcl;
-	    pts->y = ybase;
-	    pts++;
-	    *wids++ = xcr - xcl + 1;
-	}
-    }
-    er = xrk - (xr << 1) - er;
-    el = (xl << 1) - xlk - el;
-    boty = floor(-y0 - radius + 1.0);
-    if (ybase + y - boty > ymax)
-	boty = ymax - ybase - y;
-    while (y > boty)
-    {
-	k = (y << 1) + yk;
-	er -= k;
-	while ((er >= 0.0) && (xr >= 0))
-	{
-	    xr--;
-	    er += xrk - (xr << 1);
-	}
-	el -= k;
-	while ((el > 0.0) && (xl <= 0))
-	{
-	    xl++;
-	    el += (xl << 1) - xlk;
-	}
-	y--;
-	ybase++;
-	if (ybase < ymin)
-	    continue;
-	xcl = xl + xbase;
-	xcr = xr + xbase;
-	CLIPSTEPEDGE(edgey1, edge1, edgeleft1);
-	CLIPSTEPEDGE(edgey2, edge2, edgeleft2);
-	if (xcr >= xcl)
-	{
-	    pts->x = xcl;
-	    pts->y = ybase;
-	    pts++;
-	    *wids++ = xcr - xcl + 1;
-	}
-    }
-    return (pts - points);
-}
-
-static int
-miRoundJoinFace (LineFacePtr face, PolyEdgePtr edge, Bool *leftEdge)
-{
-    int	    y;
-    int	    dx, dy;
-    double  xa, ya;
-    Bool	left;
-
-    dx = -face->dy;
-    dy = face->dx;
-    xa = face->xa;
-    ya = face->ya;
-    left = 1;
-    if (ya > 0)
-    {
-	ya = 0.0;
-	xa = 0.0;
-    }
-    if (dy < 0 || (dy == 0 && dx > 0))
-    {
-	dx = -dx;
-	dy = -dy;
-	left = !left;
-    }
-    if (dx == 0 && dy == 0)
-	dy = 1;
-    if (dy == 0)
-    {
-	y = ICEIL (face->ya) + face->y;
-	edge->x = -32767;
-	edge->stepx = 0;
-	edge->signdx = 0;
-	edge->e = -1;
-	edge->dy = 0;
-	edge->dx = 0;
-	edge->height = 0;
-    }
-    else
-    {
-	y = miPolyBuildEdge (xa, ya, 0.0, dx, dy, face->x, face->y, !left, edge);
-	edge->height = 32767;
-    }
-    *leftEdge = !left;
-    return y;
-}
-
-void
-miRoundJoinClip (LineFacePtr pLeft, LineFacePtr pRight,
-		 PolyEdgePtr edge1, PolyEdgePtr edge2,
-		 int *y1, int *y2, Bool *left1, Bool *left2)
-{
-    double	denom;
-
-    denom = - pLeft->dx * (double)pRight->dy + pRight->dx * (double)pLeft->dy;
-
-    if (denom >= 0)
-    {
-	pLeft->xa = -pLeft->xa;
-	pLeft->ya = -pLeft->ya;
-    }
-    else
-    {
-	pRight->xa = -pRight->xa;
-	pRight->ya = -pRight->ya;
-    }
-    *y1 = miRoundJoinFace (pLeft, edge1, left1);
-    *y2 = miRoundJoinFace (pRight, edge2, left2);
-}
-
-int
-miRoundCapClip (LineFacePtr face, Bool isInt, PolyEdgePtr edge, Bool *leftEdge)
-{
-    int		y;
-    int 	dx, dy;
-    double	xa, ya, k;
-    Bool	left;
-
-    dx = -face->dy;
-    dy = face->dx;
-    xa = face->xa;
-    ya = face->ya;
-    k = 0.0;
-    if (!isInt)
-	k = face->k;
-    left = 1;
-    if (dy < 0 || (dy == 0 && dx > 0))
-    {
-	dx = -dx;
-	dy = -dy;
-	xa = -xa;
-	ya = -ya;
-	left = !left;
-    }
-    if (dx == 0 && dy == 0)
-	dy = 1;
-    if (dy == 0)
-    {
-	y = ICEIL (face->ya) + face->y;
-	edge->x = -32767;
-	edge->stepx = 0;
-	edge->signdx = 0;
-	edge->e = -1;
-	edge->dy = 0;
-	edge->dx = 0;
-	edge->height = 0;
-    }
-    else
-    {
-	y = miPolyBuildEdge (xa, ya, k, dx, dy, face->x, face->y, !left, edge);
-	edge->height = 32767;
-    }
-    *leftEdge = !left;
-    return y;
-}
-
-static void
-miLineArc (
-    DrawablePtr		pDraw,
-    GCPtr  		pGC,
-    unsigned long	pixel,
-    SpanDataPtr		spanData,
-    LineFacePtr		leftFace,
-    LineFacePtr 	rightFace,
-    double	    	xorg,
-    double          	yorg,
-    Bool	    	isInt)
-{
-    DDXPointPtr points;
-    int *widths;
-    int xorgi = 0, yorgi = 0;
-    XID		oldPixel;
-    Spans spanRec;
-    int n;
-    PolyEdgeRec	edge1, edge2;
-    int		edgey1, edgey2;
-    Bool	edgeleft1, edgeleft2;
-
-    if (isInt)
-    {
-	xorgi = leftFace ? leftFace->x : rightFace->x;
-	yorgi = leftFace ? leftFace->y : rightFace->y;
-    }
-    edgey1 = 65536;
-    edgey2 = 65536;
-    edge1.x = 0; /* not used, keep memory checkers happy */
-    edge1.dy = -1;
-    edge2.x = 0; /* not used, keep memory checkers happy */
-    edge2.dy = -1;
-    edgeleft1 = FALSE;
-    edgeleft2 = FALSE;
-    if ((pGC->lineStyle != LineSolid || pGC->lineWidth > 2) &&
-	((pGC->capStyle == CapRound && pGC->joinStyle != JoinRound) ||
-	 (pGC->joinStyle == JoinRound && pGC->capStyle == CapButt)))
-    {
-	if (isInt)
-	{
-	    xorg = (double) xorgi;
-	    yorg = (double) yorgi;
-	}
-	if (leftFace && rightFace)
-	{
-	    miRoundJoinClip (leftFace, rightFace, &edge1, &edge2,
-			     &edgey1, &edgey2, &edgeleft1, &edgeleft2);
-	}
-	else if (leftFace)
-	{
-	    edgey1 = miRoundCapClip (leftFace, isInt, &edge1, &edgeleft1);
-	}
-	else if (rightFace)
-	{
-	    edgey2 = miRoundCapClip (rightFace, isInt, &edge2, &edgeleft2);
-	}
-	isInt = FALSE;
-    }
-    if (!spanData)
-    {
-    	points = xalloc(sizeof(DDXPointRec) * pGC->lineWidth);
-    	if (!points)
-	    return;
-    	widths = xalloc(sizeof(int) * pGC->lineWidth);
-    	if (!widths)
-    	{
-	    xfree(points);
-	    return;
-    	}
-    	oldPixel = pGC->fgPixel;
-    	if (pixel != oldPixel)
-    	{
-	    XID tmpPixel = (XID)pixel;
-	    DoChangeGC(pGC, GCForeground, &tmpPixel, FALSE);
-	    ValidateGC (pDraw, pGC);
-    	}
-    }
-    else
-    {
-	points = xalloc (pGC->lineWidth * sizeof (DDXPointRec));
-	if (!points)
-	    return;
-	widths = xalloc (pGC->lineWidth * sizeof (int));
-	if (!widths)
-	{
-	    xfree (points);
-	    return;
-	}
-	spanRec.points = points;
-	spanRec.widths = widths;
-    }
-    if (isInt)
-	n = miLineArcI(pDraw, pGC, xorgi, yorgi, points, widths);
-    else
-	n = miLineArcD(pDraw, pGC, xorg, yorg, points, widths,
-		       &edge1, edgey1, edgeleft1,
-		       &edge2, edgey2, edgeleft2);
-
-    if (!spanData)
-    {
-    	(*pGC->ops->FillSpans)(pDraw, pGC, n, points, widths, TRUE);
-    	xfree(widths);
-    	xfree(points);
-    	if (pixel != oldPixel)
-    	{
-	    DoChangeGC(pGC, GCForeground, &oldPixel, FALSE);
-	    ValidateGC (pDraw, pGC);
-    	}
-    }
-    else
-    {
-	spanRec.count = n;
-	AppendSpanGroup (pGC, pixel, &spanRec, spanData);
-    }
-}
-
-static void
-miLineProjectingCap (DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel,
-		     SpanDataPtr spanData, LineFacePtr face, Bool isLeft,
-		     double xorg, double yorg, Bool isInt)
-{
-    int	xorgi = 0, yorgi = 0;
-    int	lw;
-    PolyEdgeRec	lefts[2], rights[2];
-    int		lefty, righty, topy, bottomy;
-    PolyEdgePtr left, right;
-    PolyEdgePtr	top, bottom;
-    double	xa,ya;
-    double	k;
-    double	xap, yap;
-    int		dx, dy;
-    double	projectXoff, projectYoff;
-    double	maxy;
-    int		finaly;
-    
-    if (isInt)
-    {
-	xorgi = face->x;
-	yorgi = face->y;
-    }
-    lw = pGC->lineWidth;
-    dx = face->dx;
-    dy = face->dy;
-    k = face->k;
-    if (dy == 0)
-    {
-	lefts[0].height = lw;
-	lefts[0].x = xorgi;
-	if (isLeft)
-	    lefts[0].x -= (lw >> 1);
-	lefts[0].stepx = 0;
-	lefts[0].signdx = 1;
-	lefts[0].e = -lw;
-	lefts[0].dx = 0;
-	lefts[0].dy = lw;
-	rights[0].height = lw;
-	rights[0].x = xorgi;
-	if (!isLeft)
-	    rights[0].x += ((lw + 1) >> 1);
-	rights[0].stepx = 0;
-	rights[0].signdx = 1;
-	rights[0].e = -lw;
-	rights[0].dx = 0;
-	rights[0].dy = lw;
-	miFillPolyHelper (pDrawable, pGC, pixel, spanData, yorgi - (lw >> 1), lw,
-		     lefts, rights, 1, 1);
-    }
-    else if (dx == 0)
-    {
-	if (dy < 0) {
-	    dy = -dy;
-	    isLeft = !isLeft;
-	}
-	topy = yorgi;
-	bottomy = yorgi + dy;
-	if (isLeft)
-	    topy -= (lw >> 1);
-	else
-	    bottomy += (lw >> 1);
-	lefts[0].height = bottomy - topy;
-	lefts[0].x = xorgi - (lw >> 1);
-	lefts[0].stepx = 0;
-	lefts[0].signdx = 1;
-	lefts[0].e = -dy;
-	lefts[0].dx = dx;
-	lefts[0].dy = dy;
-
-	rights[0].height = bottomy - topy;
-	rights[0].x = lefts[0].x + (lw-1);
-	rights[0].stepx = 0;
-	rights[0].signdx = 1;
-	rights[0].e = -dy;
-	rights[0].dx = dx;
-	rights[0].dy = dy;
-	miFillPolyHelper (pDrawable, pGC, pixel, spanData, topy, bottomy - topy, lefts, rights, 1, 1);
-    }
-    else
-    {
-	xa = face->xa;
-	ya = face->ya;
-	projectXoff = -ya;
-	projectYoff = xa;
-	if (dx < 0)
-	{
-	    right = &rights[1];
-	    left = &lefts[0];
-	    top = &rights[0];
-	    bottom = &lefts[1];
-	}
-	else
-	{
-	    right = &rights[0];
-	    left = &lefts[1];
-	    top = &lefts[0];
-	    bottom = &rights[1];
-	}
-	if (isLeft)
-	{
-	    righty = miPolyBuildEdge (xa, ya,
-		     k, dx, dy, xorgi, yorgi, 0, right);
-	    
-	    xa = -xa;
-	    ya = -ya;
-	    k = -k;
-	    lefty = miPolyBuildEdge (xa - projectXoff, ya - projectYoff,
-				     k, dx, dy, xorgi, yorgi, 1, left);
-	    if (dx > 0)
-	    {
-		ya = -ya;
-		xa = -xa;
-	    }
-	    xap = xa - projectXoff;
-	    yap = ya - projectYoff;
-	    topy = miPolyBuildEdge (xap, yap, xap * dx + yap * dy,
-				    -dy, dx, xorgi, yorgi, dx > 0, top);
-	    bottomy = miPolyBuildEdge (xa, ya,
-				       0.0, -dy, dx, xorgi, yorgi, dx < 0, bottom);
-	    maxy = -ya;
-	}
-	else
-	{
-	    righty = miPolyBuildEdge (xa - projectXoff, ya - projectYoff,
-		     k, dx, dy, xorgi, yorgi, 0, right);
-	    
-	    xa = -xa;
-	    ya = -ya;
-	    k = -k;
-	    lefty = miPolyBuildEdge (xa, ya,
-		    k, dx, dy, xorgi, yorgi, 1, left);
-	    if (dx > 0)
-	    {
-		ya = -ya;
-		xa = -xa;
-	    }
-	    xap = xa - projectXoff;
-	    yap = ya - projectYoff;
-	    topy = miPolyBuildEdge (xa, ya, 0.0, -dy, dx, xorgi, xorgi, dx > 0, top);
-	    bottomy = miPolyBuildEdge (xap, yap, xap * dx + yap * dy,
-				       -dy, dx, xorgi, xorgi, dx < 0, bottom);
-	    maxy = -ya + projectYoff;
-	}
-	finaly = ICEIL(maxy) + yorgi;
-	if (dx < 0)
-	{
-	    left->height = bottomy - lefty;
-	    right->height = finaly - righty;
-	    top->height = righty - topy;
-	}
-	else
-	{
-	    right->height =  bottomy - righty;
-	    left->height = finaly - lefty;
-	    top->height = lefty - topy;
-	}
-	bottom->height = finaly - bottomy;
-	miFillPolyHelper (pDrawable, pGC, pixel, spanData, topy,
-		     bottom->height + bottomy - topy, lefts, rights, 2, 2);
-    }
-}
-
-static void
-miWideSegment (
-    DrawablePtr		pDrawable,
-    GCPtr		pGC,
-    unsigned long	pixel,
-    SpanDataPtr		spanData,
-    int    		x1,
-    int    		y1,
-    int    		x2,
-    int    		y2,
-    Bool		projectLeft,
-    Bool		projectRight,
-    LineFacePtr 	leftFace,
-    LineFacePtr 	rightFace)
-{
-    double	l, L, r;
-    double	xa, ya;
-    double	projectXoff = 0.0, projectYoff = 0.0;
-    double	k;
-    double	maxy;
-    int		x, y;
-    int		dx, dy;
-    int		finaly;
-    PolyEdgePtr left, right;
-    PolyEdgePtr	top, bottom;
-    int		lefty, righty, topy, bottomy;
-    int		signdx;
-    PolyEdgeRec	lefts[2], rights[2];
-    LineFacePtr	tface;
-    int		lw = pGC->lineWidth;
-
-    /* draw top-to-bottom always */
-    if (y2 < y1 || (y2 == y1 && x2 < x1))
-    {
-	x = x1;
-	x1 = x2;
-	x2 = x;
-
-	y = y1;
-	y1 = y2;
-	y2 = y;
-
-	x = projectLeft;
-	projectLeft = projectRight;
-	projectRight = x;
-
-	tface = leftFace;
-	leftFace = rightFace;
-	rightFace = tface;
-    }
-
-    dy = y2 - y1;
-    signdx = 1;
-    dx = x2 - x1;
-    if (dx < 0)
-	signdx = -1;
-
-    leftFace->x = x1;
-    leftFace->y = y1;
-    leftFace->dx = dx;
-    leftFace->dy = dy;
-
-    rightFace->x = x2;
-    rightFace->y = y2;
-    rightFace->dx = -dx;
-    rightFace->dy = -dy;
-
-    if (dy == 0)
-    {
-	rightFace->xa = 0;
-	rightFace->ya = (double) lw / 2.0;
-	rightFace->k = -(double) (lw * dx) / 2.0;
-	leftFace->xa = 0;
-	leftFace->ya = -rightFace->ya;
-	leftFace->k = rightFace->k;
-	x = x1;
-	if (projectLeft)
-	    x -= (lw >> 1);
-	y = y1 - (lw >> 1);
-	dx = x2 - x;
-	if (projectRight)
-	    dx += ((lw + 1) >> 1);
-	dy = lw;
-	miFillRectPolyHelper (pDrawable, pGC, pixel, spanData,
-			      x, y, dx, dy);
-    }
-    else if (dx == 0)
-    {
-	leftFace->xa =  (double) lw / 2.0;
-	leftFace->ya = 0;
-	leftFace->k = (double) (lw * dy) / 2.0;
-	rightFace->xa = -leftFace->xa;
-	rightFace->ya = 0;
-	rightFace->k = leftFace->k;
-	y = y1;
-	if (projectLeft)
-	    y -= lw >> 1;
-	x = x1 - (lw >> 1);
-	dy = y2 - y;
-	if (projectRight)
-	    dy += ((lw + 1) >> 1);
-	dx = lw;
-	miFillRectPolyHelper (pDrawable, pGC, pixel, spanData,
-			      x, y, dx, dy);
-    }
-    else
-    {
-    	l = ((double) lw) / 2.0;
-    	L = hypot ((double) dx, (double) dy);
-
-	if (dx < 0)
-	{
-	    right = &rights[1];
-	    left = &lefts[0];
-	    top = &rights[0];
-	    bottom = &lefts[1];
-	}
-	else
-	{
-	    right = &rights[0];
-	    left = &lefts[1];
-	    top = &lefts[0];
-	    bottom = &rights[1];
-	}
-	r = l / L;
-
-	/* coord of upper bound at integral y */
-	ya = -r * dx;
-	xa = r * dy;
-
-	if (projectLeft | projectRight)
-	{
-	    projectXoff = -ya;
-	    projectYoff = xa;
-	}
-
-    	/* xa * dy - ya * dx */
-	k = l * L;
-
-	leftFace->xa = xa;
-	leftFace->ya = ya;
-	leftFace->k = k;
-	rightFace->xa = -xa;
-	rightFace->ya = -ya;
-	rightFace->k = k;
-
-	if (projectLeft)
-	    righty = miPolyBuildEdge (xa - projectXoff, ya - projectYoff,
-				      k, dx, dy, x1, y1, 0, right);
-	else
-	    righty = miPolyBuildEdge (xa, ya,
-				      k, dx, dy, x1, y1, 0, right);
-
-	/* coord of lower bound at integral y */
-	ya = -ya;
-	xa = -xa;
-
-	/* xa * dy - ya * dx */
-	k = - k;
-
-	if (projectLeft)
-	    lefty = miPolyBuildEdge (xa - projectXoff, ya - projectYoff,
-				     k, dx, dy, x1, y1, 1, left);
-	else
-	    lefty = miPolyBuildEdge (xa, ya,
-				     k, dx, dy, x1, y1, 1, left);
-
-	/* coord of top face at integral y */
-
-	if (signdx > 0)
-	{
-	    ya = -ya;
-	    xa = -xa;
-	}
-
-	if (projectLeft)
-	{
-	    double xap = xa - projectXoff;
-	    double yap = ya - projectYoff;
-	    topy = miPolyBuildEdge (xap, yap, xap * dx + yap * dy,
-				    -dy, dx, x1, y1, dx > 0, top);
-	}
-	else
-	    topy = miPolyBuildEdge (xa, ya, 0.0, -dy, dx, x1, y1, dx > 0, top);
-
-	/* coord of bottom face at integral y */
-
-	if (projectRight)
-	{
-	    double xap = xa + projectXoff;
-	    double yap = ya + projectYoff;
-	    bottomy = miPolyBuildEdge (xap, yap, xap * dx + yap * dy,
-				       -dy, dx, x2, y2, dx < 0, bottom);
-	    maxy = -ya + projectYoff;
-	}
-	else
-	{
-	    bottomy = miPolyBuildEdge (xa, ya,
-				       0.0, -dy, dx, x2, y2, dx < 0, bottom);
-	    maxy = -ya;
-	}
-
-	finaly = ICEIL (maxy) + y2;
-
-	if (dx < 0)
-	{
-	    left->height = bottomy - lefty;
-	    right->height = finaly - righty;
-	    top->height = righty - topy;
-	}
-	else
-	{
-	    right->height =  bottomy - righty;
-	    left->height = finaly - lefty;
-	    top->height = lefty - topy;
-	}
-	bottom->height = finaly - bottomy;
-	miFillPolyHelper (pDrawable, pGC, pixel, spanData, topy,
-		     bottom->height + bottomy - topy, lefts, rights, 2, 2);
-    }
-}
-
-static SpanDataPtr
-miSetupSpanData (GCPtr pGC, SpanDataPtr spanData, int npt)
-{
-    if ((npt < 3 && pGC->capStyle != CapRound) || miSpansEasyRop(pGC->alu))
-	return (SpanDataPtr) NULL;
-    if (pGC->lineStyle == LineDoubleDash)
-	miInitSpanGroup (&spanData->bgGroup);
-    miInitSpanGroup (&spanData->fgGroup);
-    return spanData;
-}
-
-static void
-miCleanupSpanData (DrawablePtr pDrawable, GCPtr pGC, SpanDataPtr spanData)
-{
-    if (pGC->lineStyle == LineDoubleDash)
-    {
-	XID oldPixel, pixel;
-	
-	pixel = pGC->bgPixel;
-	oldPixel = pGC->fgPixel;
-    	if (pixel != oldPixel)
-    	{
-    	    DoChangeGC (pGC, GCForeground, &pixel, FALSE);
-    	    ValidateGC (pDrawable, pGC);
-    	}
-	miFillUniqueSpanGroup (pDrawable, pGC, &spanData->bgGroup);
-	miFreeSpanGroup (&spanData->bgGroup);
-    	if (pixel != oldPixel)
-    	{
-	    DoChangeGC (pGC, GCForeground, &oldPixel, FALSE);
-	    ValidateGC (pDrawable, pGC);
-    	}
-    }
-    miFillUniqueSpanGroup (pDrawable, pGC, &spanData->fgGroup);
-    miFreeSpanGroup (&spanData->fgGroup);
-}
-
-void
-miWideLine (DrawablePtr pDrawable, GCPtr pGC,
-	    int mode, int npt, DDXPointPtr pPts)
-{
- int x1, y1, x2, y2;
-    SpanDataRec	spanDataRec;
-    SpanDataPtr	spanData;
-    long   	pixel;
-    Bool	projectLeft, projectRight;
-    LineFaceRec	leftFace, rightFace, prevRightFace;
-    LineFaceRec	firstFace;
-    int		first;
-    Bool	somethingDrawn = FALSE;
-    Bool	selfJoin;
-
-    spanData = miSetupSpanData (pGC, &spanDataRec, npt);
-    pixel = pGC->fgPixel;
-    x2 = pPts->x;
-    y2 = pPts->y;
-    first = TRUE;
-    selfJoin = FALSE;
-    if (npt > 1)
-    {
-    	if (mode == CoordModePrevious)
-    	{
-	    int nptTmp;
-	    DDXPointPtr pPtsTmp;
-    
-	    x1 = x2;
-	    y1 = y2;
-	    nptTmp = npt;
-	    pPtsTmp = pPts + 1;
-	    while (--nptTmp)
-	    {
-	    	x1 += pPtsTmp->x;
-	    	y1 += pPtsTmp->y;
-	    	++pPtsTmp;
-	    }
-	    if (x2 == x1 && y2 == y1)
-	    	selfJoin = TRUE;
-    	}
-    	else if (x2 == pPts[npt-1].x && y2 == pPts[npt-1].y)
-    	{
-	    selfJoin = TRUE;
-    	}
-    }
-    projectLeft = pGC->capStyle == CapProjecting && !selfJoin;
-    projectRight = FALSE;
-    while (--npt)
-    {
-	x1 = x2;
-	y1 = y2;
-	++pPts;
-	x2 = pPts->x;
-	y2 = pPts->y;
-	if (mode == CoordModePrevious)
-	{
-	    x2 += x1;
-	    y2 += y1;
-	}
-	if (x1 != x2 || y1 != y2)
-	{
-	    somethingDrawn = TRUE;
-	    if (npt == 1 && pGC->capStyle == CapProjecting && !selfJoin)
-	    	projectRight = TRUE;
-	    miWideSegment (pDrawable, pGC, pixel, spanData, x1, y1, x2, y2,
-		       	   projectLeft, projectRight, &leftFace, &rightFace);
-	    if (first)
-	    {
-	    	if (selfJoin)
-		    firstFace = leftFace;
-	    	else if (pGC->capStyle == CapRound)
-		{
-		    if (pGC->lineWidth == 1 && !spanData)
-			miLineOnePoint (pDrawable, pGC, pixel, spanData, x1, y1);
-		    else
-		    	miLineArc (pDrawable, pGC, pixel, spanData,
-			       	   &leftFace, (LineFacePtr) NULL,
- 			       	   (double)0.0, (double)0.0,
-			       	   TRUE);
-		}
-	    }
-	    else
-	    {
-	    	miLineJoin (pDrawable, pGC, pixel, spanData, &leftFace,
-		            &prevRightFace);
-	    }
-	    prevRightFace = rightFace;
-	    first = FALSE;
-	    projectLeft = FALSE;
-	}
-	if (npt == 1 && somethingDrawn)
- 	{
-	    if (selfJoin)
-		miLineJoin (pDrawable, pGC, pixel, spanData, &firstFace,
-			    &rightFace);
-	    else if (pGC->capStyle == CapRound)
-	    {
-		if (pGC->lineWidth == 1 && !spanData)
-		    miLineOnePoint (pDrawable, pGC, pixel, spanData, x2, y2);
-		else
-		    miLineArc (pDrawable, pGC, pixel, spanData,
-			       (LineFacePtr) NULL, &rightFace,
-			       (double)0.0, (double)0.0,
-			       TRUE);
-	    }
-	}
-    }
-    /* handle crock where all points are coincedent */
-    if (!somethingDrawn)
-    {
-	projectLeft = pGC->capStyle == CapProjecting;
-	miWideSegment (pDrawable, pGC, pixel, spanData,
-		       x2, y2, x2, y2, projectLeft, projectLeft,
-		       &leftFace, &rightFace);
-	if (pGC->capStyle == CapRound)
-	{
-	    miLineArc (pDrawable, pGC, pixel, spanData,
-		       &leftFace, (LineFacePtr) NULL,
-		       (double)0.0, (double)0.0,
-		       TRUE);
-	    rightFace.dx = -1;	/* sleezy hack to make it work */
-	    miLineArc (pDrawable, pGC, pixel, spanData,
-		       (LineFacePtr) NULL, &rightFace,
- 		       (double)0.0, (double)0.0,
-		       TRUE);
-	}
-    }
-    if (spanData)
-	miCleanupSpanData (pDrawable, pGC, spanData);
-}
-
-#define V_TOP	    0
-#define V_RIGHT	    1
-#define V_BOTTOM    2
-#define V_LEFT	    3
-
-static void
-miWideDashSegment (
-    DrawablePtr	    pDrawable,
-    GCPtr  	    pGC,
-    SpanDataPtr	    spanData,
-    int		    *pDashOffset,
-    int		    *pDashIndex,
-    int		    x1,
-    int		    y1,
-    int		    x2,
-    int		    y2,
-    Bool	    projectLeft,
-    Bool	    projectRight,
-    LineFacePtr	    leftFace,
-    LineFacePtr	    rightFace)
-{
-    int		    dashIndex, dashRemain;
-    unsigned char   *pDash;
-    double	    L, l;
-    double	    k;
-    PolyVertexRec   vertices[4];
-    PolyVertexRec   saveRight, saveBottom;
-    PolySlopeRec    slopes[4];
-    PolyEdgeRec	    left[2], right[2];
-    LineFaceRec	    lcapFace, rcapFace;
-    int		    nleft, nright;
-    int		    h;
-    int		    y;
-    int		    dy, dx;
-    unsigned long   pixel;
-    double	    LRemain;
-    double	    r;
-    double	    rdx, rdy;
-    double	    dashDx, dashDy;
-    double	    saveK = 0.0;
-    Bool	    first = TRUE;
-    double	    lcenterx, lcentery, rcenterx = 0.0, rcentery = 0.0;
-    unsigned long   fgPixel, bgPixel;
-    
-    dx = x2 - x1;
-    dy = y2 - y1;
-    dashIndex = *pDashIndex;
-    pDash = pGC->dash;
-    dashRemain = pDash[dashIndex] - *pDashOffset;
-    fgPixel = pGC->fgPixel;
-    bgPixel = pGC->bgPixel;
-    if (pGC->fillStyle == FillOpaqueStippled ||
-	pGC->fillStyle == FillTiled)
-    {
-	bgPixel = fgPixel;
-    }
-
-    l = ((double) pGC->lineWidth) / 2.0;
-    if (dx == 0)
-    {
-	L = dy;
-	rdx = 0;
-	rdy = l;
-	if (dy < 0)
-	{
-	    L = -dy;
-	    rdy = -l;
-	}
-    }
-    else if (dy == 0)
-    {
-	L = dx;
-	rdx = l;
-	rdy = 0;
-	if (dx < 0)
-	{
-	    L = -dx;
-	    rdx = -l;
-	}
-    }
-    else
-    {
-	L = hypot ((double) dx, (double) dy);
-	r = l / L;
-
-	rdx = r * dx;
-	rdy = r * dy;
-    }
-    k = l * L;
-    LRemain = L;
-    /* All position comments are relative to a line with dx and dy > 0,
-     * but the code does not depend on this */
-    /* top */
-    slopes[V_TOP].dx = dx;
-    slopes[V_TOP].dy = dy;
-    slopes[V_TOP].k = k;
-    /* right */
-    slopes[V_RIGHT].dx = -dy;
-    slopes[V_RIGHT].dy = dx;
-    slopes[V_RIGHT].k = 0;
-    /* bottom */
-    slopes[V_BOTTOM].dx = -dx;
-    slopes[V_BOTTOM].dy = -dy;
-    slopes[V_BOTTOM].k = k;
-    /* left */
-    slopes[V_LEFT].dx = dy;
-    slopes[V_LEFT].dy = -dx;
-    slopes[V_LEFT].k = 0;
-
-    /* preload the start coordinates */
-    vertices[V_RIGHT].x = vertices[V_TOP].x = rdy;
-    vertices[V_RIGHT].y = vertices[V_TOP].y = -rdx;
-
-    vertices[V_BOTTOM].x = vertices[V_LEFT].x = -rdy;
-    vertices[V_BOTTOM].y = vertices[V_LEFT].y = rdx;
-
-    if (projectLeft)
-    {
-	vertices[V_TOP].x -= rdx;
-	vertices[V_TOP].y -= rdy;
-
-	vertices[V_LEFT].x -= rdx;
-	vertices[V_LEFT].y -= rdy;
-
-	slopes[V_LEFT].k = rdx * dx + rdy * dy;
-    }
-
-    lcenterx = x1;
-    lcentery = y1;
-
-    if (pGC->capStyle == CapRound)
-    {
-	lcapFace.dx = dx;
-	lcapFace.dy = dy;
-	lcapFace.x = x1;
-	lcapFace.y = y1;
-
-	rcapFace.dx = -dx;
-	rcapFace.dy = -dy;
-	rcapFace.x = x1;
-	rcapFace.y = y1;
-    }
-    while (LRemain > dashRemain)
-    {
-	dashDx = (dashRemain * dx) / L;
-	dashDy = (dashRemain * dy) / L;
-
-	rcenterx = lcenterx + dashDx;
-	rcentery = lcentery + dashDy;
-
-	vertices[V_RIGHT].x += dashDx;
-	vertices[V_RIGHT].y += dashDy;
-
-	vertices[V_BOTTOM].x += dashDx;
-	vertices[V_BOTTOM].y += dashDy;
-
-	slopes[V_RIGHT].k = vertices[V_RIGHT].x * dx + vertices[V_RIGHT].y * dy;
-
-	if (pGC->lineStyle == LineDoubleDash || !(dashIndex & 1))
-	{
-	    if (pGC->lineStyle == LineOnOffDash &&
- 	        pGC->capStyle == CapProjecting)
-	    {
-		saveRight = vertices[V_RIGHT];
-		saveBottom = vertices[V_BOTTOM];
-		saveK = slopes[V_RIGHT].k;
-		
-		if (!first)
-		{
-		    vertices[V_TOP].x -= rdx;
-		    vertices[V_TOP].y -= rdy;
-    
-		    vertices[V_LEFT].x -= rdx;
-		    vertices[V_LEFT].y -= rdy;
-
-		    slopes[V_LEFT].k = vertices[V_LEFT].x *
-				       slopes[V_LEFT].dy -
-				       vertices[V_LEFT].y *
-				       slopes[V_LEFT].dx;
-		}
-		
-		vertices[V_RIGHT].x += rdx;
-		vertices[V_RIGHT].y += rdy;
-
-		vertices[V_BOTTOM].x += rdx;
-		vertices[V_BOTTOM].y += rdy;
-
-		slopes[V_RIGHT].k = vertices[V_RIGHT].x *
-				   slopes[V_RIGHT].dy -
-				   vertices[V_RIGHT].y *
-				   slopes[V_RIGHT].dx;
-	    }
-	    y = miPolyBuildPoly (vertices, slopes, 4, x1, y1,
-			     	 left, right, &nleft, &nright, &h);
-	    pixel = (dashIndex & 1) ? bgPixel : fgPixel;
-	    miFillPolyHelper (pDrawable, pGC, pixel, spanData, y, h, left, right, nleft, nright);
-
-	    if (pGC->lineStyle == LineOnOffDash)
-	    {
-		switch (pGC->capStyle)
-		{
-		case CapProjecting:
-		    vertices[V_BOTTOM] = saveBottom;
-		    vertices[V_RIGHT] = saveRight;
-		    slopes[V_RIGHT].k = saveK;
-		    break;
-		case CapRound:
-		    if (!first)
-		    {
-		    	if (dx < 0)
-		    	{
-		    	    lcapFace.xa = -vertices[V_LEFT].x;
-		    	    lcapFace.ya = -vertices[V_LEFT].y;
-			    lcapFace.k = slopes[V_LEFT].k;
-		    	}
-		    	else
-		    	{
-		    	    lcapFace.xa = vertices[V_TOP].x;
-		    	    lcapFace.ya = vertices[V_TOP].y;
-			    lcapFace.k = -slopes[V_LEFT].k;
-		    	}
-		    	miLineArc (pDrawable, pGC, pixel, spanData,
-			       	   &lcapFace, (LineFacePtr) NULL,
-			       	   lcenterx, lcentery, FALSE);
-		    }
-		    if (dx < 0)
-		    {
-		    	rcapFace.xa = vertices[V_BOTTOM].x;
-		    	rcapFace.ya = vertices[V_BOTTOM].y;
-			rcapFace.k = slopes[V_RIGHT].k;
-		    }
-		    else
-		    {
-		    	rcapFace.xa = -vertices[V_RIGHT].x;
-		    	rcapFace.ya = -vertices[V_RIGHT].y;
-			rcapFace.k = -slopes[V_RIGHT].k;
-		    }
-		    miLineArc (pDrawable, pGC, pixel, spanData,
-			       (LineFacePtr) NULL, &rcapFace,
-			       rcenterx, rcentery, FALSE);
-		    break;
-	    	}
-	    }
-	}
-	LRemain -= dashRemain;
-	++dashIndex;
-	if (dashIndex == pGC->numInDashList)
-	    dashIndex = 0;
-	dashRemain = pDash[dashIndex];
-
-	lcenterx = rcenterx;
-	lcentery = rcentery;
-
-	vertices[V_TOP] = vertices[V_RIGHT];
-	vertices[V_LEFT] = vertices[V_BOTTOM];
-	slopes[V_LEFT].k = -slopes[V_RIGHT].k;
-	first = FALSE;
-    }
-
-    if (pGC->lineStyle == LineDoubleDash || !(dashIndex & 1))
-    {
-    	vertices[V_TOP].x -= dx;
-    	vertices[V_TOP].y -= dy;
-
-	vertices[V_LEFT].x -= dx;
-	vertices[V_LEFT].y -= dy;
-
-	vertices[V_RIGHT].x = rdy;
-	vertices[V_RIGHT].y = -rdx;
-
-	vertices[V_BOTTOM].x = -rdy;
-	vertices[V_BOTTOM].y = rdx;
-
-	
-	if (projectRight)
-	{
-	    vertices[V_RIGHT].x += rdx;
-	    vertices[V_RIGHT].y += rdy;
-    
-	    vertices[V_BOTTOM].x += rdx;
-	    vertices[V_BOTTOM].y += rdy;
-	    slopes[V_RIGHT].k = vertices[V_RIGHT].x *
-				slopes[V_RIGHT].dy -
-				vertices[V_RIGHT].y *
-				slopes[V_RIGHT].dx;
-	}
-	else
-	    slopes[V_RIGHT].k = 0;
-
-	if (!first && pGC->lineStyle == LineOnOffDash &&
-	    pGC->capStyle == CapProjecting)
-	{
-	    vertices[V_TOP].x -= rdx;
-	    vertices[V_TOP].y -= rdy;
-
-	    vertices[V_LEFT].x -= rdx;
-	    vertices[V_LEFT].y -= rdy;
-	    slopes[V_LEFT].k = vertices[V_LEFT].x *
-			       slopes[V_LEFT].dy -
-			       vertices[V_LEFT].y *
-			       slopes[V_LEFT].dx;
-	}
-	else
-	    slopes[V_LEFT].k += dx * dx + dy * dy;
-
-
-	y = miPolyBuildPoly (vertices, slopes, 4, x2, y2,
-			     left, right, &nleft, &nright, &h);
-
-	pixel = (dashIndex & 1) ? pGC->bgPixel : pGC->fgPixel;
-	miFillPolyHelper (pDrawable, pGC, pixel, spanData, y, h, left, right, nleft, nright);
-	if (!first && pGC->lineStyle == LineOnOffDash &&
-	    pGC->capStyle == CapRound)
-	{
-	    lcapFace.x = x2;
-	    lcapFace.y = y2;
-	    if (dx < 0)
-	    {
-		lcapFace.xa = -vertices[V_LEFT].x;
-		lcapFace.ya = -vertices[V_LEFT].y;
-		lcapFace.k = slopes[V_LEFT].k;
-	    }
-	    else
-	    {
-		lcapFace.xa = vertices[V_TOP].x;
-		lcapFace.ya = vertices[V_TOP].y;
-		lcapFace.k = -slopes[V_LEFT].k;
-	    }
-	    miLineArc (pDrawable, pGC, pixel, spanData,
-		       &lcapFace, (LineFacePtr) NULL,
-		       rcenterx, rcentery, FALSE);
-	}
-    }
-    dashRemain = ((double) dashRemain) - LRemain;
-    if (dashRemain == 0)
-    {
-	dashIndex++;
-	if (dashIndex == pGC->numInDashList)
-	    dashIndex = 0;
-	dashRemain = pDash[dashIndex];
-    }
-
-    leftFace->x = x1;
-    leftFace->y = y1;
-    leftFace->dx = dx;
-    leftFace->dy = dy;
-    leftFace->xa = rdy;
-    leftFace->ya = -rdx;
-    leftFace->k = k;
-
-    rightFace->x = x2;
-    rightFace->y = y2;
-    rightFace->dx = -dx;
-    rightFace->dy = -dy;
-    rightFace->xa = -rdy;
-    rightFace->ya = rdx;
-    rightFace->k = k;
-
-    *pDashIndex = dashIndex;
-    *pDashOffset = pDash[dashIndex] - dashRemain;
-}
-
-void
-miWideDash (DrawablePtr pDrawable, GCPtr pGC,
-	    int mode, int npt, DDXPointPtr pPts)
-{
-    int			x1, y1, x2, y2;
-    unsigned long	pixel;
-    Bool		projectLeft, projectRight;
-    LineFaceRec		leftFace, rightFace, prevRightFace;
-    LineFaceRec		firstFace;
-    int			first;
-    int			dashIndex, dashOffset;
-    int			prevDashIndex;
-    SpanDataRec		spanDataRec;
-    SpanDataPtr		spanData;
-    Bool		somethingDrawn = FALSE;
-    Bool		selfJoin;
-    Bool		endIsFg = FALSE, startIsFg = FALSE;
-    Bool		firstIsFg = FALSE, prevIsFg = FALSE;
-
-#if 0
-    /* XXX backward compatibility */
-    if (pGC->lineWidth == 0)
-    {
-	miZeroDashLine (pDrawable, pGC, mode, npt, pPts);
-	return;
-    }
-#endif
-    if (pGC->lineStyle == LineDoubleDash && 
-	(pGC->fillStyle == FillOpaqueStippled || pGC->fillStyle == FillTiled))
-    {
-	miWideLine (pDrawable, pGC, mode, npt, pPts);
-	return;
-    }
-    if (npt == 0)
-	return;
-    spanData = miSetupSpanData (pGC, &spanDataRec, npt);
-    x2 = pPts->x;
-    y2 = pPts->y;
-    first = TRUE;
-    selfJoin = FALSE;
-    if (mode == CoordModePrevious)
-    {
-	int nptTmp;
-	DDXPointPtr pPtsTmp;
-
-	x1 = x2;
-	y1 = y2;
-	nptTmp = npt;
-	pPtsTmp = pPts + 1;
-	while (--nptTmp)
-	{
-	    x1 += pPtsTmp->x;
-	    y1 += pPtsTmp->y;
-	    ++pPtsTmp;
-	}
-	if (x2 == x1 && y2 == y1)
-	    selfJoin = TRUE;
-    }
-    else if (x2 == pPts[npt-1].x && y2 == pPts[npt-1].y)
-    {
-	selfJoin = TRUE;
-    }
-    projectLeft = pGC->capStyle == CapProjecting && !selfJoin;
-    projectRight = FALSE;
-    dashIndex = 0;
-    dashOffset = 0;
-    miStepDash ((int)pGC->dashOffset, &dashIndex,
-	        pGC->dash, (int)pGC->numInDashList, &dashOffset);
-    while (--npt)
-    {
-	x1 = x2;
-	y1 = y2;
-	++pPts;
-	x2 = pPts->x;
-	y2 = pPts->y;
-	if (mode == CoordModePrevious)
-	{
-	    x2 += x1;
-	    y2 += y1;
-	}
-	if (x1 != x2 || y1 != y2)
-	{
-	    somethingDrawn = TRUE;
-	    if (npt == 1 && pGC->capStyle == CapProjecting && 
-		(!selfJoin || !firstIsFg))
-		projectRight = TRUE;
-	    prevDashIndex = dashIndex;
-	    miWideDashSegment (pDrawable, pGC, spanData, &dashOffset, &dashIndex,
-				x1, y1, x2, y2,
-				projectLeft, projectRight, &leftFace, &rightFace);
-	    startIsFg = !(prevDashIndex & 1);
-	    endIsFg = (dashIndex & 1) ^ (dashOffset != 0);
-	    if (pGC->lineStyle == LineDoubleDash || startIsFg)
-	    {
-	    	pixel = startIsFg ? pGC->fgPixel : pGC->bgPixel;
-	    	if (first || (pGC->lineStyle == LineOnOffDash && !prevIsFg))
-	    	{
-	    	    if (first && selfJoin)
-		    {
-		    	firstFace = leftFace;
-			firstIsFg = startIsFg;
-		    }
-	    	    else if (pGC->capStyle == CapRound)
-		    	miLineArc (pDrawable, pGC, pixel, spanData,
-			       	   &leftFace, (LineFacePtr) NULL,
-			       	   (double)0.0, (double)0.0, TRUE);
-	    	}
-	    	else
-	    	{
-	    	    miLineJoin (pDrawable, pGC, pixel, spanData, &leftFace,
-		            	&prevRightFace);
-	    	}
-	    }
-	    prevRightFace = rightFace;
-	    prevIsFg = endIsFg;
-	    first = FALSE;
-	    projectLeft = FALSE;
-	}
-	if (npt == 1 && somethingDrawn)
-	{
-	    if (pGC->lineStyle == LineDoubleDash || endIsFg)
-	    {
-		pixel = endIsFg ? pGC->fgPixel : pGC->bgPixel;
-		if (selfJoin && (pGC->lineStyle == LineDoubleDash || firstIsFg))
-		{
-		    miLineJoin (pDrawable, pGC, pixel, spanData, &firstFace,
-				&rightFace);
-		}
-		else 
-		{
-		    if (pGC->capStyle == CapRound)
-			miLineArc (pDrawable, pGC, pixel, spanData,
-				    (LineFacePtr) NULL, &rightFace,
-				    (double)0.0, (double)0.0, TRUE);
-		}
-	    }
-	    else
-	    {
-		/* glue a cap to the start of the line if
-		 * we're OnOffDash and ended on odd dash
-		 */
-		if (selfJoin && firstIsFg)
-		{
-		    pixel = pGC->fgPixel;
-		    if (pGC->capStyle == CapProjecting)
-			miLineProjectingCap (pDrawable, pGC, pixel, spanData,
-				    &firstFace, TRUE,
-				    (double)0.0, (double)0.0, TRUE);
-		    else if (pGC->capStyle == CapRound)
-			miLineArc (pDrawable, pGC, pixel, spanData,
-				    &firstFace, (LineFacePtr) NULL,
-				    (double)0.0, (double)0.0, TRUE);
-		}
-	    }
-	}
-    }
-    /* handle crock where all points are coincident */
-    if (!somethingDrawn && (pGC->lineStyle == LineDoubleDash || !(dashIndex & 1)))
-    {
-	/* not the same as endIsFg computation above */
-	pixel = (dashIndex & 1) ? pGC->bgPixel : pGC->fgPixel;
-	switch (pGC->capStyle) {
-	case CapRound:
-	    miLineArc (pDrawable, pGC, pixel, spanData,
-		       (LineFacePtr) NULL, (LineFacePtr) NULL,
-		       (double)x2, (double)y2,
-		       FALSE);
-	    break;
-	case CapProjecting:
-	    x1 = pGC->lineWidth;
-	    miFillRectPolyHelper (pDrawable, pGC, pixel, spanData,
-				  x2 - (x1 >> 1), y2 - (x1 >> 1), x1, x1);
-	    break;
-	}
-    }
-    if (spanData)
-	miCleanupSpanData (pDrawable, pGC, spanData);
-}
+/*

+

+Copyright 1988, 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.

+

+*/

+

+/* Author:  Keith Packard, MIT X Consortium */

+

+/*

+ * Mostly integer wideline code.  Uses a technique similar to

+ * bresenham zero-width lines, except walks an X edge

+ */

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <stdio.h>

+#ifdef _XOPEN_SOURCE

+#include <math.h>

+#else

+#define _XOPEN_SOURCE	/* to get prototype for hypot on some systems */

+#include <math.h>

+#undef _XOPEN_SOURCE

+#endif

+#ifdef _MSC_VER

+#define hypot _hypot

+#endif

+

+#include <X11/X.h>

+#include "windowstr.h"

+#include "gcstruct.h"

+#include "regionstr.h"

+#include "miwideline.h"

+#include "mi.h"

+

+static Bool

+InitSpans(Spans *spans, size_t nspans)

+{

+    spans->points = malloc(nspans * sizeof (*spans->points));

+    if (!spans->points)

+	return FALSE;

+    spans->widths = malloc(nspans * sizeof (*spans->widths));

+    if (!spans->widths)

+    {

+	free(spans->points);

+	return FALSE;

+    }

+    return TRUE;

+}

+

+/*

+ * interface data to span-merging polygon filler

+ */

+

+typedef struct _SpanData {

+    SpanGroup	fgGroup, bgGroup;

+} SpanDataRec, *SpanDataPtr;

+

+static void

+AppendSpanGroup(GCPtr pGC, unsigned long pixel, Spans *spanPtr, SpanDataPtr spanData)

+{

+    SpanGroup *group, *othergroup = NULL;

+    if (pixel == pGC->fgPixel)

+    {

+	group = &spanData->fgGroup;

+	if (pGC->lineStyle == LineDoubleDash)

+	    othergroup = &spanData->bgGroup;

+    }

+    else

+    {

+	group = &spanData->bgGroup;

+	othergroup = &spanData->fgGroup;

+    }

+    miAppendSpans (group, othergroup, spanPtr);

+}

+

+

+static void miLineArc(DrawablePtr pDraw, GCPtr pGC,

+		      unsigned long pixel, SpanDataPtr spanData,

+		      LineFacePtr leftFace,

+		      LineFacePtr rightFace,

+		      double xorg, double yorg, Bool isInt);

+

+

+/*

+ * spans-based polygon filler

+ */

+

+static void

+fillSpans(DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel, Spans *spans, SpanDataPtr spanData)

+{

+    if (!spanData)

+    {

+	ChangeGCVal oldPixel, tmpPixel;

+	oldPixel.val = pGC->fgPixel;

+	if (pixel != oldPixel.val)

+	{

+	    tmpPixel.val = (XID)pixel;

+	    ChangeGC (NullClient, pGC, GCForeground, &tmpPixel);

+	    ValidateGC (pDrawable, pGC);

+	}

+	(*pGC->ops->FillSpans) (pDrawable, pGC, spans->count, spans->points, spans->widths, TRUE);

+	free(spans->widths);

+	free(spans->points);

+	if (pixel != oldPixel.val)

+	{

+	    ChangeGC (NullClient, pGC, GCForeground, &oldPixel);

+	    ValidateGC (pDrawable, pGC);

+	}

+    }

+    else

+	AppendSpanGroup (pGC, pixel, spans, spanData);

+}

+

+static void

+miFillPolyHelper (DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel,

+		  SpanDataPtr spanData, int y, int overall_height,

+		  PolyEdgePtr left, PolyEdgePtr right,

+		  int left_count, int right_count)

+{

+    int left_x = 0, left_e = 0;

+    int	left_stepx = 0;

+    int	left_signdx = 0;

+    int	left_dy = 0, left_dx = 0;

+

+    int right_x = 0, right_e = 0;

+    int	right_stepx = 0;

+    int	right_signdx = 0;

+    int	right_dy = 0, right_dx = 0;

+

+    int	height = 0;

+    int	left_height = 0, right_height = 0;

+

+    DDXPointPtr ppt;

+    int 	*pwidth;

+    int		xorg;

+    Spans	spanRec;

+

+    if (!InitSpans(&spanRec, overall_height))

+	return;

+    ppt = spanRec.points;

+    pwidth = spanRec.widths;

+

+    xorg = 0;

+    if (pGC->miTranslate)

+    {

+	y += pDrawable->y;

+	xorg = pDrawable->x;

+    }

+    while ((left_count || left_height) &&

+	   (right_count || right_height))

+    {

+	if (!left_height && left_count)

+	{

+	    left_height = left->height;

+	    left_x = left->x;

+	    left_stepx = left->stepx;

+	    left_signdx = left->signdx;

+	    left_e = left->e;

+	    left_dy = left->dy;

+	    left_dx = left->dx;

+	    --left_count;

+	    ++left;

+	}

+

+	if (!right_height && right_count)

+	{

+	    right_height = right->height;

+	    right_x = right->x;

+	    right_stepx = right->stepx;

+	    right_signdx = right->signdx;

+	    right_e = right->e;

+	    right_dy = right->dy;

+	    right_dx = right->dx;

+	    --right_count;

+	    ++right;

+	}

+

+	height = left_height;

+	if (height > right_height)

+	    height = right_height;

+

+	left_height -= height;

+	right_height -= height;

+

+	while (--height >= 0)

+	{

+	    if (right_x >= left_x)

+	    {

+		ppt->y = y;

+		ppt->x = left_x + xorg;

+		ppt++;

+		*pwidth++ = right_x - left_x + 1;

+	    }

+	    y++;

+

+	    left_x += left_stepx;

+	    left_e += left_dx;

+	    if (left_e > 0)

+	    {

+		left_x += left_signdx;

+		left_e -= left_dy;

+	    }

+

+	    right_x += right_stepx;

+	    right_e += right_dx;

+	    if (right_e > 0)

+	    {

+		right_x += right_signdx;

+		right_e -= right_dy;

+	    }

+	}

+    }

+    spanRec.count = ppt - spanRec.points;

+    fillSpans (pDrawable, pGC, pixel, &spanRec, spanData);

+}

+

+static void

+miFillRectPolyHelper (

+    DrawablePtr	pDrawable,

+    GCPtr	pGC,

+    unsigned long   pixel,

+    SpanDataPtr	spanData,

+    int		x,

+    int		y,

+    int		w,

+    int		h)

+{

+    DDXPointPtr ppt;

+    int 	*pwidth;

+    ChangeGCVal	oldPixel, tmpPixel;

+    Spans	spanRec;

+    xRectangle  rect;

+

+    if (!spanData)

+    {

+	rect.x = x;

+	rect.y = y;

+	rect.width = w;

+	rect.height = h;

+	oldPixel.val = pGC->fgPixel;

+	if (pixel != oldPixel.val)

+    	{

+	    tmpPixel.val = (XID)pixel;

+	    ChangeGC (NullClient, pGC, GCForeground, &tmpPixel);

+    	    ValidateGC (pDrawable, pGC);

+    	}

+	(*pGC->ops->PolyFillRect) (pDrawable, pGC, 1, &rect);

+	if (pixel != oldPixel.val)

+    	{

+	    ChangeGC (NullClient, pGC, GCForeground, &oldPixel);

+	    ValidateGC (pDrawable, pGC);

+    	}

+    }

+    else

+    {

+	if (!InitSpans(&spanRec, h))

+	    return;

+	ppt = spanRec.points;

+	pwidth = spanRec.widths;

+

+    	if (pGC->miTranslate)

+    	{

+	    y += pDrawable->y;

+	    x += pDrawable->x;

+    	}

+	while (h--)

+	{

+	    ppt->x = x;

+	    ppt->y = y;

+	    ppt++;

+	    *pwidth++ = w;

+	    y++;

+	}

+	spanRec.count = ppt - spanRec.points;

+	AppendSpanGroup (pGC, pixel, &spanRec, spanData);

+    }

+}

+

+/* static */ int

+miPolyBuildEdge (

+    double	x0,

+    double	y0,

+    double	k,  /* x0 * dy - y0 * dx */

+    int		dx,

+    int		dy,

+    int		xi,

+    int		yi,

+    int		left,

+    PolyEdgePtr edge)

+{

+    int	    x, y, e;

+    int	    xady;

+

+    if (dy < 0)

+    {

+	dy = -dy;

+	dx = -dx;

+	k = -k;

+    }

+

+#ifdef NOTDEF

+    {

+	double	realk, kerror;

+    	realk = x0 * dy - y0 * dx;

+    	kerror = Fabs (realk - k);

+    	if (kerror > .1)

+	    printf ("realk: %g k: %g\n", realk, k);

+    }

+#endif

+    y = ICEIL (y0);

+    xady = ICEIL (k) + y * dx;

+

+    if (xady <= 0)

+	x = - (-xady / dy) - 1;

+    else

+	x = (xady - 1) / dy;

+

+    e = xady - x * dy;

+

+    if (dx >= 0)

+    {

+	edge->signdx = 1;

+	edge->stepx = dx / dy;

+	edge->dx = dx % dy;

+    }

+    else

+    {

+	edge->signdx = -1;

+	edge->stepx = - (-dx / dy);

+	edge->dx = -dx % dy;

+	e = dy - e + 1;

+    }

+    edge->dy = dy;

+    edge->x = x + left + xi;

+    edge->e = e - dy;	/* bias to compare against 0 instead of dy */

+    return y + yi;

+}

+

+#define StepAround(v, incr, max) (((v) + (incr) < 0) ? (max - 1) : ((v) + (incr) == max) ? 0 : ((v) + (incr)))

+

+/* static */ int

+miPolyBuildPoly (

+    PolyVertexPtr	vertices,

+    PolySlopePtr	slopes,

+    int			count,

+    int			xi,

+    int			yi,

+    PolyEdgePtr		left,

+    PolyEdgePtr		right,

+    int			*pnleft,

+    int			*pnright,

+    int			*h)

+{

+    int 	top, bottom;

+    double 	miny, maxy;

+    int 	i;

+    int		j;

+    int		clockwise;

+    int		slopeoff;

+    int 	s;

+    int 	nright, nleft;

+    int	   	y, lasty = 0, bottomy, topy = 0;

+

+    /* find the top of the polygon */

+    maxy = miny = vertices[0].y;

+    bottom = top = 0;

+    for (i = 1; i < count; i++)

+    {

+	if (vertices[i].y < miny)

+	{

+	    top = i;

+	    miny = vertices[i].y;

+	}

+	if (vertices[i].y >= maxy)

+	{

+	    bottom = i;

+	    maxy = vertices[i].y;

+	}

+    }

+    clockwise = 1;

+    slopeoff = 0;

+

+    i = top;

+    j = StepAround (top, -1, count);

+

+    if (slopes[j].dy * slopes[i].dx > slopes[i].dy * slopes[j].dx)

+    {

+	clockwise = -1;

+	slopeoff = -1;

+    }

+

+    bottomy = ICEIL (maxy) + yi;

+

+    nright = 0;

+

+    s = StepAround (top, slopeoff, count);

+    i = top;

+    while (i != bottom)

+    {

+	if (slopes[s].dy != 0)

+	{

+	    y = miPolyBuildEdge (vertices[i].x, vertices[i].y,

+			slopes[s].k,

+			slopes[s].dx, slopes[s].dy,

+			xi, yi, 0,

+			&right[nright]);

+	    if (nright != 0)

+	    	right[nright-1].height = y - lasty;

+	    else

+	    	topy = y;

+	    nright++;

+	    lasty = y;

+	}

+

+	i = StepAround (i, clockwise, count);

+	s = StepAround (s, clockwise, count);

+    }

+    if (nright != 0)

+	right[nright-1].height = bottomy - lasty;

+

+    if (slopeoff == 0)

+	slopeoff = -1;

+    else

+	slopeoff = 0;

+

+    nleft = 0;

+    s = StepAround (top, slopeoff, count);

+    i = top;

+    while (i != bottom)

+    {

+	if (slopes[s].dy != 0)

+	{

+	    y = miPolyBuildEdge (vertices[i].x, vertices[i].y,

+			   slopes[s].k,

+		       	   slopes[s].dx,  slopes[s].dy, xi, yi, 1,

+		       	   &left[nleft]);

+    

+	    if (nleft != 0)

+	    	left[nleft-1].height = y - lasty;

+	    nleft++;

+	    lasty = y;

+	}

+	i = StepAround (i, -clockwise, count);

+	s = StepAround (s, -clockwise, count);

+    }

+    if (nleft != 0)

+	left[nleft-1].height = bottomy - lasty;

+    *pnleft = nleft;

+    *pnright = nright;

+    *h = bottomy - topy;

+    return topy;

+}

+

+static void

+miLineOnePoint (

+    DrawablePtr	    pDrawable,

+    GCPtr	    pGC,

+    unsigned long   pixel,

+    SpanDataPtr	    spanData,

+    int		    x,

+    int		    y)

+{

+    DDXPointRec pt;

+    int	    wid;

+    unsigned long	oldPixel;

+

+    MILINESETPIXEL (pDrawable, pGC, pixel, oldPixel);

+    if (pGC->fillStyle == FillSolid)

+    {

+	pt.x = x;

+	pt.y = y;

+	(*pGC->ops->PolyPoint) (pDrawable, pGC, CoordModeOrigin, 1, &pt);

+    }

+    else

+    {

+	wid = 1;

+	if (pGC->miTranslate) 

+	{

+	    x += pDrawable->x;

+	    y += pDrawable->y;

+	}

+	pt.x = x;

+	pt.y = y;

+	(*pGC->ops->FillSpans) (pDrawable, pGC, 1, &pt, &wid, TRUE);

+    }

+    MILINERESETPIXEL (pDrawable, pGC, pixel, oldPixel);

+}

+

+static void

+miLineJoin (

+    DrawablePtr 	pDrawable,

+    GCPtr		pGC,

+    unsigned long	pixel,

+    SpanDataPtr		spanData,

+    LineFacePtr		pLeft,

+    LineFacePtr 	pRight)

+{

+    double	    mx = 0, my = 0;

+    double	    denom = 0.0;

+    PolyVertexRec   vertices[4];

+    PolySlopeRec    slopes[4];

+    int		    edgecount;

+    PolyEdgeRec	    left[4], right[4];

+    int		    nleft, nright;

+    int		    y, height;

+    int		    swapslopes;

+    int		    joinStyle = pGC->joinStyle;

+    int		    lw = pGC->lineWidth;

+

+    if (lw == 1 && !spanData) {

+	/* See if one of the lines will draw the joining pixel */

+	if (pLeft->dx > 0 || (pLeft->dx == 0 && pLeft->dy > 0))

+	    return;

+	if (pRight->dx > 0 || (pRight->dx == 0 && pRight->dy > 0))

+	    return;

+	if (joinStyle != JoinRound) {

+    	    denom = - pLeft->dx * (double)pRight->dy + pRight->dx * (double)pLeft->dy;

+    	    if (denom == 0)

+	    	return;	/* no join to draw */

+	}

+	if (joinStyle != JoinMiter) {

+	    miLineOnePoint (pDrawable, pGC, pixel, spanData, pLeft->x, pLeft->y);

+	    return;

+	}

+    } else {

+    	if (joinStyle == JoinRound)

+    	{

+	    miLineArc(pDrawable, pGC, pixel, spanData,

+		      pLeft, pRight,

+		      (double)0.0, (double)0.0, TRUE);

+	    return;

+    	}

+    	denom = - pLeft->dx * (double)pRight->dy + pRight->dx * (double)pLeft->dy;

+    	if (denom == 0.0)

+	    return;	/* no join to draw */

+    }

+

+    swapslopes = 0;

+    if (denom > 0)

+    {

+	pLeft->xa = -pLeft->xa;

+	pLeft->ya = -pLeft->ya;

+	pLeft->dx = -pLeft->dx;

+	pLeft->dy = -pLeft->dy;

+    }

+    else

+    {

+	swapslopes = 1;

+	pRight->xa = -pRight->xa;

+	pRight->ya = -pRight->ya;

+	pRight->dx = -pRight->dx;

+	pRight->dy = -pRight->dy;

+    }

+

+    vertices[0].x = pRight->xa;

+    vertices[0].y = pRight->ya;

+    slopes[0].dx = -pRight->dy;

+    slopes[0].dy =  pRight->dx;

+    slopes[0].k = 0;

+

+    vertices[1].x = 0;

+    vertices[1].y = 0;

+    slopes[1].dx =  pLeft->dy;

+    slopes[1].dy = -pLeft->dx;

+    slopes[1].k = 0;

+

+    vertices[2].x = pLeft->xa;

+    vertices[2].y = pLeft->ya;

+

+    if (joinStyle == JoinMiter)

+    {

+    	my = (pLeft->dy  * (pRight->xa * pRight->dy - pRight->ya * pRight->dx) -

+              pRight->dy * (pLeft->xa  * pLeft->dy  - pLeft->ya  * pLeft->dx )) /

+	      denom;

+    	if (pLeft->dy != 0)

+    	{

+	    mx = pLeft->xa + (my - pLeft->ya) *

+			    (double) pLeft->dx / (double) pLeft->dy;

+    	}

+    	else

+    	{

+	    mx = pRight->xa + (my - pRight->ya) *

+			    (double) pRight->dx / (double) pRight->dy;

+    	}

+	/* check miter limit */

+	if ((mx * mx + my * my) * 4 > SQSECANT * lw * lw)

+	    joinStyle = JoinBevel;

+    }

+

+    if (joinStyle == JoinMiter)

+    {

+	slopes[2].dx = pLeft->dx;

+	slopes[2].dy = pLeft->dy;

+	slopes[2].k =  pLeft->k;

+	if (swapslopes)

+	{

+	    slopes[2].dx = -slopes[2].dx;

+	    slopes[2].dy = -slopes[2].dy;

+	    slopes[2].k  = -slopes[2].k;

+	}

+	vertices[3].x = mx;

+	vertices[3].y = my;

+	slopes[3].dx = pRight->dx;

+	slopes[3].dy = pRight->dy;

+	slopes[3].k  = pRight->k;

+	if (swapslopes)

+	{

+	    slopes[3].dx = -slopes[3].dx;

+	    slopes[3].dy = -slopes[3].dy;

+	    slopes[3].k  = -slopes[3].k;

+	}

+	edgecount = 4;

+    }

+    else

+    {

+	double	scale, dx, dy, adx, ady;

+

+	adx = dx = pRight->xa - pLeft->xa;

+	ady = dy = pRight->ya - pLeft->ya;

+	if (adx < 0)

+	    adx = -adx;

+	if (ady < 0)

+	    ady = -ady;

+	scale = ady;

+	if (adx > ady)

+	    scale = adx;

+	slopes[2].dx = (dx * 65536) / scale;

+	slopes[2].dy = (dy * 65536) / scale;

+	slopes[2].k = ((pLeft->xa + pRight->xa) * slopes[2].dy -

+		       (pLeft->ya + pRight->ya) * slopes[2].dx) / 2.0;

+	edgecount = 3;

+    }

+

+    y = miPolyBuildPoly (vertices, slopes, edgecount, pLeft->x, pLeft->y,

+		   left, right, &nleft, &nright, &height);

+    miFillPolyHelper (pDrawable, pGC, pixel, spanData, y, height, left, right, nleft, nright);

+}

+

+static int

+miLineArcI (

+    DrawablePtr	    pDraw,

+    GCPtr	    pGC,

+    int		    xorg,

+    int		    yorg,

+    DDXPointPtr	    points,

+    int		    *widths)

+{

+    DDXPointPtr tpts, bpts;

+    int *twids, *bwids;

+    int x, y, e, ex, slw;

+

+    tpts = points;

+    twids = widths;

+    if (pGC->miTranslate)

+    {

+	xorg += pDraw->x;

+	yorg += pDraw->y;

+    }

+    slw = pGC->lineWidth;

+    if (slw == 1)

+    {

+	tpts->x = xorg;

+	tpts->y = yorg;

+	*twids = 1;

+	return 1;

+    }

+    bpts = tpts + slw;

+    bwids = twids + slw;

+    y = (slw >> 1) + 1;

+    if (slw & 1)

+	e = - ((y << 2) + 3);

+    else

+	e = - (y << 3);

+    ex = -4;

+    x = 0;

+    while (y)

+    {

+	e += (y << 3) - 4;

+	while (e >= 0)

+	{

+	    x++;

+	    e += (ex = -((x << 3) + 4));

+	}

+	y--;

+	slw = (x << 1) + 1;

+	if ((e == ex) && (slw > 1))

+	    slw--;

+	tpts->x = xorg - x;

+	tpts->y = yorg - y;

+	tpts++;

+	*twids++ = slw;

+	if ((y != 0) && ((slw > 1) || (e != ex)))

+	{

+	    bpts--;

+	    bpts->x = xorg - x;

+	    bpts->y = yorg + y;

+	    *--bwids = slw;

+	}

+    }

+    return (pGC->lineWidth);

+}

+

+#define CLIPSTEPEDGE(edgey,edge,edgeleft) \

+    if (ybase == edgey) \

+    { \

+	if (edgeleft) \

+	{ \

+	    if (edge->x > xcl) \

+		xcl = edge->x; \

+	} \

+	else \

+	{ \

+	    if (edge->x < xcr) \

+		xcr = edge->x; \

+	} \

+	edgey++; \

+	edge->x += edge->stepx; \

+	edge->e += edge->dx; \

+	if (edge->e > 0) \

+	{ \

+	    edge->x += edge->signdx; \

+	    edge->e -= edge->dy; \

+	} \

+    }

+

+static int

+miLineArcD (

+    DrawablePtr	    pDraw,

+    GCPtr	    pGC,

+    double	    xorg,

+    double	    yorg,

+    DDXPointPtr	    points,

+    int		    *widths,

+    PolyEdgePtr	    edge1,

+    int		    edgey1,

+    Bool	    edgeleft1,

+    PolyEdgePtr	    edge2,

+    int		    edgey2,

+    Bool	    edgeleft2)

+{

+    DDXPointPtr pts;

+    int *wids;

+    double radius, x0, y0, el, er, yk, xlk, xrk, k;

+    int xbase, ybase, y, boty, xl, xr, xcl, xcr;

+    int ymin, ymax;

+    Bool edge1IsMin, edge2IsMin;

+    int ymin1, ymin2;

+

+    pts = points;

+    wids = widths;

+    xbase = floor(xorg);

+    x0 = xorg - xbase;

+    ybase = ICEIL (yorg);

+    y0 = yorg - ybase;

+    if (pGC->miTranslate)

+    {

+	xbase += pDraw->x;

+	ybase += pDraw->y;

+	edge1->x += pDraw->x;

+	edge2->x += pDraw->x;

+	edgey1 += pDraw->y;

+	edgey2 += pDraw->y;

+    }

+    xlk = x0 + x0 + 1.0;

+    xrk = x0 + x0 - 1.0;

+    yk = y0 + y0 - 1.0;

+    radius = ((double)pGC->lineWidth) / 2.0;

+    y = floor(radius - y0 + 1.0);

+    ybase -= y;

+    ymin = ybase;

+    ymax = 65536;

+    edge1IsMin = FALSE;

+    ymin1 = edgey1;

+    if (edge1->dy >= 0)

+    {

+    	if (!edge1->dy)

+    	{

+	    if (edgeleft1)

+	    	edge1IsMin = TRUE;

+	    else

+	    	ymax = edgey1;

+	    edgey1 = 65536;

+    	}

+    	else

+    	{

+	    if ((edge1->signdx < 0) == edgeleft1)

+	    	edge1IsMin = TRUE;

+    	}

+    }

+    edge2IsMin = FALSE;

+    ymin2 = edgey2;

+    if (edge2->dy >= 0)

+    {

+    	if (!edge2->dy)

+    	{

+	    if (edgeleft2)

+	    	edge2IsMin = TRUE;

+	    else

+	    	ymax = edgey2;

+	    edgey2 = 65536;

+    	}

+    	else

+    	{

+	    if ((edge2->signdx < 0) == edgeleft2)

+	    	edge2IsMin = TRUE;

+    	}

+    }

+    if (edge1IsMin)

+    {

+	ymin = ymin1;

+	if (edge2IsMin && ymin1 > ymin2)

+	    ymin = ymin2;

+    } else if (edge2IsMin)

+	ymin = ymin2;

+    el = radius * radius - ((y + y0) * (y + y0)) - (x0 * x0);

+    er = el + xrk;

+    xl = 1;

+    xr = 0;

+    if (x0 < 0.5)

+    {

+	xl = 0;

+	el -= xlk;

+    }

+    boty = (y0 < -0.5) ? 1 : 0;

+    if (ybase + y - boty > ymax)

+	boty = ymax - ybase - y;

+    while (y > boty)

+    {

+	k = (y << 1) + yk;

+	er += k;

+	while (er > 0.0)

+	{

+	    xr++;

+	    er += xrk - (xr << 1);

+	}

+	el += k;

+	while (el >= 0.0)

+	{

+	    xl--;

+	    el += (xl << 1) - xlk;

+	}

+	y--;

+	ybase++;

+	if (ybase < ymin)

+	    continue;

+	xcl = xl + xbase;

+	xcr = xr + xbase;

+	CLIPSTEPEDGE(edgey1, edge1, edgeleft1);

+	CLIPSTEPEDGE(edgey2, edge2, edgeleft2);

+	if (xcr >= xcl)

+	{

+	    pts->x = xcl;

+	    pts->y = ybase;

+	    pts++;

+	    *wids++ = xcr - xcl + 1;

+	}

+    }

+    er = xrk - (xr << 1) - er;

+    el = (xl << 1) - xlk - el;

+    boty = floor(-y0 - radius + 1.0);

+    if (ybase + y - boty > ymax)

+	boty = ymax - ybase - y;

+    while (y > boty)

+    {

+	k = (y << 1) + yk;

+	er -= k;

+	while ((er >= 0.0) && (xr >= 0))

+	{

+	    xr--;

+	    er += xrk - (xr << 1);

+	}

+	el -= k;

+	while ((el > 0.0) && (xl <= 0))

+	{

+	    xl++;

+	    el += (xl << 1) - xlk;

+	}

+	y--;

+	ybase++;

+	if (ybase < ymin)

+	    continue;

+	xcl = xl + xbase;

+	xcr = xr + xbase;

+	CLIPSTEPEDGE(edgey1, edge1, edgeleft1);

+	CLIPSTEPEDGE(edgey2, edge2, edgeleft2);

+	if (xcr >= xcl)

+	{

+	    pts->x = xcl;

+	    pts->y = ybase;

+	    pts++;

+	    *wids++ = xcr - xcl + 1;

+	}

+    }

+    return (pts - points);

+}

+

+static int

+miRoundJoinFace (LineFacePtr face, PolyEdgePtr edge, Bool *leftEdge)

+{

+    int	    y;

+    int	    dx, dy;

+    double  xa, ya;

+    Bool	left;

+

+    dx = -face->dy;

+    dy = face->dx;

+    xa = face->xa;

+    ya = face->ya;

+    left = 1;

+    if (ya > 0)

+    {

+	ya = 0.0;

+	xa = 0.0;

+    }

+    if (dy < 0 || (dy == 0 && dx > 0))

+    {

+	dx = -dx;

+	dy = -dy;

+	left = !left;

+    }

+    if (dx == 0 && dy == 0)

+	dy = 1;

+    if (dy == 0)

+    {

+	y = ICEIL (face->ya) + face->y;

+	edge->x = -32767;

+	edge->stepx = 0;

+	edge->signdx = 0;

+	edge->e = -1;

+	edge->dy = 0;

+	edge->dx = 0;

+	edge->height = 0;

+    }

+    else

+    {

+	y = miPolyBuildEdge (xa, ya, 0.0, dx, dy, face->x, face->y, !left, edge);

+	edge->height = 32767;

+    }

+    *leftEdge = !left;

+    return y;

+}

+

+void

+miRoundJoinClip (LineFacePtr pLeft, LineFacePtr pRight,

+		 PolyEdgePtr edge1, PolyEdgePtr edge2,

+		 int *y1, int *y2, Bool *left1, Bool *left2)

+{

+    double	denom;

+

+    denom = - pLeft->dx * (double)pRight->dy + pRight->dx * (double)pLeft->dy;

+

+    if (denom >= 0)

+    {

+	pLeft->xa = -pLeft->xa;

+	pLeft->ya = -pLeft->ya;

+    }

+    else

+    {

+	pRight->xa = -pRight->xa;

+	pRight->ya = -pRight->ya;

+    }

+    *y1 = miRoundJoinFace (pLeft, edge1, left1);

+    *y2 = miRoundJoinFace (pRight, edge2, left2);

+}

+

+int

+miRoundCapClip (LineFacePtr face, Bool isInt, PolyEdgePtr edge, Bool *leftEdge)

+{

+    int		y;

+    int 	dx, dy;

+    double	xa, ya, k;

+    Bool	left;

+

+    dx = -face->dy;

+    dy = face->dx;

+    xa = face->xa;

+    ya = face->ya;

+    k = 0.0;

+    if (!isInt)

+	k = face->k;

+    left = 1;

+    if (dy < 0 || (dy == 0 && dx > 0))

+    {

+	dx = -dx;

+	dy = -dy;

+	xa = -xa;

+	ya = -ya;

+	left = !left;

+    }

+    if (dx == 0 && dy == 0)

+	dy = 1;

+    if (dy == 0)

+    {

+	y = ICEIL (face->ya) + face->y;

+	edge->x = -32767;

+	edge->stepx = 0;

+	edge->signdx = 0;

+	edge->e = -1;

+	edge->dy = 0;

+	edge->dx = 0;

+	edge->height = 0;

+    }

+    else

+    {

+	y = miPolyBuildEdge (xa, ya, k, dx, dy, face->x, face->y, !left, edge);

+	edge->height = 32767;

+    }

+    *leftEdge = !left;

+    return y;

+}

+

+static void

+miLineArc (

+    DrawablePtr		pDraw,

+    GCPtr  		pGC,

+    unsigned long	pixel,

+    SpanDataPtr		spanData,

+    LineFacePtr		leftFace,

+    LineFacePtr 	rightFace,

+    double	    	xorg,

+    double          	yorg,

+    Bool	    	isInt)

+{

+    int xorgi = 0, yorgi = 0;

+    Spans spanRec;

+    int n;

+    PolyEdgeRec	edge1, edge2;

+    int		edgey1, edgey2;

+    Bool	edgeleft1, edgeleft2;

+

+    if (isInt)

+    {

+	xorgi = leftFace ? leftFace->x : rightFace->x;

+	yorgi = leftFace ? leftFace->y : rightFace->y;

+    }

+    edgey1 = 65536;

+    edgey2 = 65536;

+    edge1.x = 0; /* not used, keep memory checkers happy */

+    edge1.dy = -1;

+    edge2.x = 0; /* not used, keep memory checkers happy */

+    edge2.dy = -1;

+    edgeleft1 = FALSE;

+    edgeleft2 = FALSE;

+    if ((pGC->lineStyle != LineSolid || pGC->lineWidth > 2) &&

+	((pGC->capStyle == CapRound && pGC->joinStyle != JoinRound) ||

+	 (pGC->joinStyle == JoinRound && pGC->capStyle == CapButt)))

+    {

+	if (isInt)

+	{

+	    xorg = (double) xorgi;

+	    yorg = (double) yorgi;

+	}

+	if (leftFace && rightFace)

+	{

+	    miRoundJoinClip (leftFace, rightFace, &edge1, &edge2,

+			     &edgey1, &edgey2, &edgeleft1, &edgeleft2);

+	}

+	else if (leftFace)

+	{

+	    edgey1 = miRoundCapClip (leftFace, isInt, &edge1, &edgeleft1);

+	}

+	else if (rightFace)

+	{

+	    edgey2 = miRoundCapClip (rightFace, isInt, &edge2, &edgeleft2);

+	}

+	isInt = FALSE;

+    }

+    if (!InitSpans(&spanRec, pGC->lineWidth))

+	return;

+    if (isInt)

+	n = miLineArcI(pDraw, pGC, xorgi, yorgi, spanRec.points, spanRec.widths);

+    else

+	n = miLineArcD(pDraw, pGC, xorg, yorg, spanRec.points, spanRec.widths,

+		       &edge1, edgey1, edgeleft1,

+		       &edge2, edgey2, edgeleft2);

+    spanRec.count = n;

+    fillSpans (pDraw, pGC, pixel, &spanRec, spanData);

+}

+

+static void

+miLineProjectingCap (DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel,

+		     SpanDataPtr spanData, LineFacePtr face, Bool isLeft,

+		     double xorg, double yorg, Bool isInt)

+{

+    int	xorgi = 0, yorgi = 0;

+    int	lw;

+    PolyEdgeRec	lefts[2], rights[2];

+    int		lefty, righty, topy, bottomy;

+    PolyEdgePtr left, right;

+    PolyEdgePtr	top, bottom;

+    double	xa,ya;

+    double	k;

+    double	xap, yap;

+    int		dx, dy;

+    double	projectXoff, projectYoff;

+    double	maxy;

+    int		finaly;

+    

+    if (isInt)

+    {

+	xorgi = face->x;

+	yorgi = face->y;

+    }

+    lw = pGC->lineWidth;

+    dx = face->dx;

+    dy = face->dy;

+    k = face->k;

+    if (dy == 0)

+    {

+	lefts[0].height = lw;

+	lefts[0].x = xorgi;

+	if (isLeft)

+	    lefts[0].x -= (lw >> 1);

+	lefts[0].stepx = 0;

+	lefts[0].signdx = 1;

+	lefts[0].e = -lw;

+	lefts[0].dx = 0;

+	lefts[0].dy = lw;

+	rights[0].height = lw;

+	rights[0].x = xorgi;

+	if (!isLeft)

+	    rights[0].x += ((lw + 1) >> 1);

+	rights[0].stepx = 0;

+	rights[0].signdx = 1;

+	rights[0].e = -lw;

+	rights[0].dx = 0;

+	rights[0].dy = lw;

+	miFillPolyHelper (pDrawable, pGC, pixel, spanData, yorgi - (lw >> 1), lw,

+		     lefts, rights, 1, 1);

+    }

+    else if (dx == 0)

+    {

+	if (dy < 0) {

+	    dy = -dy;

+	    isLeft = !isLeft;

+	}

+	topy = yorgi;

+	bottomy = yorgi + dy;

+	if (isLeft)

+	    topy -= (lw >> 1);

+	else

+	    bottomy += (lw >> 1);

+	lefts[0].height = bottomy - topy;

+	lefts[0].x = xorgi - (lw >> 1);

+	lefts[0].stepx = 0;

+	lefts[0].signdx = 1;

+	lefts[0].e = -dy;

+	lefts[0].dx = dx;

+	lefts[0].dy = dy;

+

+	rights[0].height = bottomy - topy;

+	rights[0].x = lefts[0].x + (lw-1);

+	rights[0].stepx = 0;

+	rights[0].signdx = 1;

+	rights[0].e = -dy;

+	rights[0].dx = dx;

+	rights[0].dy = dy;

+	miFillPolyHelper (pDrawable, pGC, pixel, spanData, topy, bottomy - topy, lefts, rights, 1, 1);

+    }

+    else

+    {

+	xa = face->xa;

+	ya = face->ya;

+	projectXoff = -ya;

+	projectYoff = xa;

+	if (dx < 0)

+	{

+	    right = &rights[1];

+	    left = &lefts[0];

+	    top = &rights[0];

+	    bottom = &lefts[1];

+	}

+	else

+	{

+	    right = &rights[0];

+	    left = &lefts[1];

+	    top = &lefts[0];

+	    bottom = &rights[1];

+	}

+	if (isLeft)

+	{

+	    righty = miPolyBuildEdge (xa, ya,

+		     k, dx, dy, xorgi, yorgi, 0, right);

+	    

+	    xa = -xa;

+	    ya = -ya;

+	    k = -k;

+	    lefty = miPolyBuildEdge (xa - projectXoff, ya - projectYoff,

+				     k, dx, dy, xorgi, yorgi, 1, left);

+	    if (dx > 0)

+	    {

+		ya = -ya;

+		xa = -xa;

+	    }

+	    xap = xa - projectXoff;

+	    yap = ya - projectYoff;

+	    topy = miPolyBuildEdge (xap, yap, xap * dx + yap * dy,

+				    -dy, dx, xorgi, yorgi, dx > 0, top);

+	    bottomy = miPolyBuildEdge (xa, ya,

+				       0.0, -dy, dx, xorgi, yorgi, dx < 0, bottom);

+	    maxy = -ya;

+	}

+	else

+	{

+	    righty = miPolyBuildEdge (xa - projectXoff, ya - projectYoff,

+		     k, dx, dy, xorgi, yorgi, 0, right);

+	    

+	    xa = -xa;

+	    ya = -ya;

+	    k = -k;

+	    lefty = miPolyBuildEdge (xa, ya,

+		    k, dx, dy, xorgi, yorgi, 1, left);

+	    if (dx > 0)

+	    {

+		ya = -ya;

+		xa = -xa;

+	    }

+	    xap = xa - projectXoff;

+	    yap = ya - projectYoff;

+	    topy = miPolyBuildEdge (xa, ya, 0.0, -dy, dx, xorgi, xorgi, dx > 0, top);

+	    bottomy = miPolyBuildEdge (xap, yap, xap * dx + yap * dy,

+				       -dy, dx, xorgi, xorgi, dx < 0, bottom);

+	    maxy = -ya + projectYoff;

+	}

+	finaly = ICEIL(maxy) + yorgi;

+	if (dx < 0)

+	{

+	    left->height = bottomy - lefty;

+	    right->height = finaly - righty;

+	    top->height = righty - topy;

+	}

+	else

+	{

+	    right->height =  bottomy - righty;

+	    left->height = finaly - lefty;

+	    top->height = lefty - topy;

+	}

+	bottom->height = finaly - bottomy;

+	miFillPolyHelper (pDrawable, pGC, pixel, spanData, topy,

+		     bottom->height + bottomy - topy, lefts, rights, 2, 2);

+    }

+}

+

+static void

+miWideSegment (

+    DrawablePtr		pDrawable,

+    GCPtr		pGC,

+    unsigned long	pixel,

+    SpanDataPtr		spanData,

+    int    		x1,

+    int    		y1,

+    int    		x2,

+    int    		y2,

+    Bool		projectLeft,

+    Bool		projectRight,

+    LineFacePtr 	leftFace,

+    LineFacePtr 	rightFace)

+{

+    double	l, L, r;

+    double	xa, ya;

+    double	projectXoff = 0.0, projectYoff = 0.0;

+    double	k;

+    double	maxy;

+    int		x, y;

+    int		dx, dy;

+    int		finaly;

+    PolyEdgePtr left, right;

+    PolyEdgePtr	top, bottom;

+    int		lefty, righty, topy, bottomy;

+    int		signdx;

+    PolyEdgeRec	lefts[2], rights[2];

+    LineFacePtr	tface;

+    int		lw = pGC->lineWidth;

+

+    /* draw top-to-bottom always */

+    if (y2 < y1 || (y2 == y1 && x2 < x1))

+    {

+	x = x1;

+	x1 = x2;

+	x2 = x;

+

+	y = y1;

+	y1 = y2;

+	y2 = y;

+

+	x = projectLeft;

+	projectLeft = projectRight;

+	projectRight = x;

+

+	tface = leftFace;

+	leftFace = rightFace;

+	rightFace = tface;

+    }

+

+    dy = y2 - y1;

+    signdx = 1;

+    dx = x2 - x1;

+    if (dx < 0)

+	signdx = -1;

+

+    leftFace->x = x1;

+    leftFace->y = y1;

+    leftFace->dx = dx;

+    leftFace->dy = dy;

+

+    rightFace->x = x2;

+    rightFace->y = y2;

+    rightFace->dx = -dx;

+    rightFace->dy = -dy;

+

+    if (dy == 0)

+    {

+	rightFace->xa = 0;

+	rightFace->ya = (double) lw / 2.0;

+	rightFace->k = -(double) (lw * dx) / 2.0;

+	leftFace->xa = 0;

+	leftFace->ya = -rightFace->ya;

+	leftFace->k = rightFace->k;

+	x = x1;

+	if (projectLeft)

+	    x -= (lw >> 1);

+	y = y1 - (lw >> 1);

+	dx = x2 - x;

+	if (projectRight)

+	    dx += ((lw + 1) >> 1);

+	dy = lw;

+	miFillRectPolyHelper (pDrawable, pGC, pixel, spanData,

+			      x, y, dx, dy);

+    }

+    else if (dx == 0)

+    {

+	leftFace->xa =  (double) lw / 2.0;

+	leftFace->ya = 0;

+	leftFace->k = (double) (lw * dy) / 2.0;

+	rightFace->xa = -leftFace->xa;

+	rightFace->ya = 0;

+	rightFace->k = leftFace->k;

+	y = y1;

+	if (projectLeft)

+	    y -= lw >> 1;

+	x = x1 - (lw >> 1);

+	dy = y2 - y;

+	if (projectRight)

+	    dy += ((lw + 1) >> 1);

+	dx = lw;

+	miFillRectPolyHelper (pDrawable, pGC, pixel, spanData,

+			      x, y, dx, dy);

+    }

+    else

+    {

+    	l = ((double) lw) / 2.0;

+    	L = hypot ((double) dx, (double) dy);

+

+	if (dx < 0)

+	{

+	    right = &rights[1];

+	    left = &lefts[0];

+	    top = &rights[0];

+	    bottom = &lefts[1];

+	}

+	else

+	{

+	    right = &rights[0];

+	    left = &lefts[1];

+	    top = &lefts[0];

+	    bottom = &rights[1];

+	}

+	r = l / L;

+

+	/* coord of upper bound at integral y */

+	ya = -r * dx;

+	xa = r * dy;

+

+	if (projectLeft | projectRight)

+	{

+	    projectXoff = -ya;

+	    projectYoff = xa;

+	}

+

+    	/* xa * dy - ya * dx */

+	k = l * L;

+

+	leftFace->xa = xa;

+	leftFace->ya = ya;

+	leftFace->k = k;

+	rightFace->xa = -xa;

+	rightFace->ya = -ya;

+	rightFace->k = k;

+

+	if (projectLeft)

+	    righty = miPolyBuildEdge (xa - projectXoff, ya - projectYoff,

+				      k, dx, dy, x1, y1, 0, right);

+	else

+	    righty = miPolyBuildEdge (xa, ya,

+				      k, dx, dy, x1, y1, 0, right);

+

+	/* coord of lower bound at integral y */

+	ya = -ya;

+	xa = -xa;

+

+	/* xa * dy - ya * dx */

+	k = - k;

+

+	if (projectLeft)

+	    lefty = miPolyBuildEdge (xa - projectXoff, ya - projectYoff,

+				     k, dx, dy, x1, y1, 1, left);

+	else

+	    lefty = miPolyBuildEdge (xa, ya,

+				     k, dx, dy, x1, y1, 1, left);

+

+	/* coord of top face at integral y */

+

+	if (signdx > 0)

+	{

+	    ya = -ya;

+	    xa = -xa;

+	}

+

+	if (projectLeft)

+	{

+	    double xap = xa - projectXoff;

+	    double yap = ya - projectYoff;

+	    topy = miPolyBuildEdge (xap, yap, xap * dx + yap * dy,

+				    -dy, dx, x1, y1, dx > 0, top);

+	}

+	else

+	    topy = miPolyBuildEdge (xa, ya, 0.0, -dy, dx, x1, y1, dx > 0, top);

+

+	/* coord of bottom face at integral y */

+

+	if (projectRight)

+	{

+	    double xap = xa + projectXoff;

+	    double yap = ya + projectYoff;

+	    bottomy = miPolyBuildEdge (xap, yap, xap * dx + yap * dy,

+				       -dy, dx, x2, y2, dx < 0, bottom);

+	    maxy = -ya + projectYoff;

+	}

+	else

+	{

+	    bottomy = miPolyBuildEdge (xa, ya,

+				       0.0, -dy, dx, x2, y2, dx < 0, bottom);

+	    maxy = -ya;

+	}

+

+	finaly = ICEIL (maxy) + y2;

+

+	if (dx < 0)

+	{

+	    left->height = bottomy - lefty;

+	    right->height = finaly - righty;

+	    top->height = righty - topy;

+	}

+	else

+	{

+	    right->height =  bottomy - righty;

+	    left->height = finaly - lefty;

+	    top->height = lefty - topy;

+	}

+	bottom->height = finaly - bottomy;

+	miFillPolyHelper (pDrawable, pGC, pixel, spanData, topy,

+		     bottom->height + bottomy - topy, lefts, rights, 2, 2);

+    }

+}

+

+static SpanDataPtr

+miSetupSpanData (GCPtr pGC, SpanDataPtr spanData, int npt)

+{

+    if ((npt < 3 && pGC->capStyle != CapRound) || miSpansEasyRop(pGC->alu))

+	return (SpanDataPtr) NULL;

+    if (pGC->lineStyle == LineDoubleDash)

+	miInitSpanGroup (&spanData->bgGroup);

+    miInitSpanGroup (&spanData->fgGroup);

+    return spanData;

+}

+

+static void

+miCleanupSpanData (DrawablePtr pDrawable, GCPtr pGC, SpanDataPtr spanData)

+{

+    if (pGC->lineStyle == LineDoubleDash)

+    {

+	ChangeGCVal oldPixel, pixel;

+	pixel.val = pGC->bgPixel;

+	oldPixel.val = pGC->fgPixel;

+	if (pixel.val != oldPixel.val)

+    	{

+	    ChangeGC (NullClient, pGC, GCForeground, &pixel);

+    	    ValidateGC (pDrawable, pGC);

+    	}

+	miFillUniqueSpanGroup (pDrawable, pGC, &spanData->bgGroup);

+	miFreeSpanGroup (&spanData->bgGroup);

+	if (pixel.val != oldPixel.val)

+    	{

+	    ChangeGC (NullClient, pGC, GCForeground, &oldPixel);

+	    ValidateGC (pDrawable, pGC);

+    	}

+    }

+    miFillUniqueSpanGroup (pDrawable, pGC, &spanData->fgGroup);

+    miFreeSpanGroup (&spanData->fgGroup);

+}

+

+void

+miWideLine (DrawablePtr pDrawable, GCPtr pGC,

+	    int mode, int npt, DDXPointPtr pPts)

+{

+ int x1, y1, x2, y2;

+    SpanDataRec	spanDataRec;

+    SpanDataPtr	spanData;

+    long   	pixel;

+    Bool	projectLeft, projectRight;

+    LineFaceRec	leftFace, rightFace, prevRightFace;

+    LineFaceRec	firstFace;

+    int		first;

+    Bool	somethingDrawn = FALSE;

+    Bool	selfJoin;

+

+    spanData = miSetupSpanData (pGC, &spanDataRec, npt);

+    pixel = pGC->fgPixel;

+    x2 = pPts->x;

+    y2 = pPts->y;

+    first = TRUE;

+    selfJoin = FALSE;

+    if (npt > 1)

+    {

+    	if (mode == CoordModePrevious)

+    	{

+	    int nptTmp;

+	    DDXPointPtr pPtsTmp;

+    

+	    x1 = x2;

+	    y1 = y2;

+	    nptTmp = npt;

+	    pPtsTmp = pPts + 1;

+	    while (--nptTmp)

+	    {

+	    	x1 += pPtsTmp->x;

+	    	y1 += pPtsTmp->y;

+	    	++pPtsTmp;

+	    }

+	    if (x2 == x1 && y2 == y1)

+	    	selfJoin = TRUE;

+    	}

+    	else if (x2 == pPts[npt-1].x && y2 == pPts[npt-1].y)

+    	{

+	    selfJoin = TRUE;

+    	}

+    }

+    projectLeft = pGC->capStyle == CapProjecting && !selfJoin;

+    projectRight = FALSE;

+    while (--npt)

+    {

+	x1 = x2;

+	y1 = y2;

+	++pPts;

+	x2 = pPts->x;

+	y2 = pPts->y;

+	if (mode == CoordModePrevious)

+	{

+	    x2 += x1;

+	    y2 += y1;

+	}

+	if (x1 != x2 || y1 != y2)

+	{

+	    somethingDrawn = TRUE;

+	    if (npt == 1 && pGC->capStyle == CapProjecting && !selfJoin)

+	    	projectRight = TRUE;

+	    miWideSegment (pDrawable, pGC, pixel, spanData, x1, y1, x2, y2,

+		       	   projectLeft, projectRight, &leftFace, &rightFace);

+	    if (first)

+	    {

+	    	if (selfJoin)

+		    firstFace = leftFace;

+	    	else if (pGC->capStyle == CapRound)

+		{

+		    if (pGC->lineWidth == 1 && !spanData)

+			miLineOnePoint (pDrawable, pGC, pixel, spanData, x1, y1);

+		    else

+		    	miLineArc (pDrawable, pGC, pixel, spanData,

+			       	   &leftFace, (LineFacePtr) NULL,

+ 			       	   (double)0.0, (double)0.0,

+			       	   TRUE);

+		}

+	    }

+	    else

+	    {

+	    	miLineJoin (pDrawable, pGC, pixel, spanData, &leftFace,

+		            &prevRightFace);

+	    }

+	    prevRightFace = rightFace;

+	    first = FALSE;

+	    projectLeft = FALSE;

+	}

+	if (npt == 1 && somethingDrawn)

+ 	{

+	    if (selfJoin)

+		miLineJoin (pDrawable, pGC, pixel, spanData, &firstFace,

+			    &rightFace);

+	    else if (pGC->capStyle == CapRound)

+	    {

+		if (pGC->lineWidth == 1 && !spanData)

+		    miLineOnePoint (pDrawable, pGC, pixel, spanData, x2, y2);

+		else

+		    miLineArc (pDrawable, pGC, pixel, spanData,

+			       (LineFacePtr) NULL, &rightFace,

+			       (double)0.0, (double)0.0,

+			       TRUE);

+	    }

+	}

+    }

+    /* handle crock where all points are coincedent */

+    if (!somethingDrawn)

+    {

+	projectLeft = pGC->capStyle == CapProjecting;

+	miWideSegment (pDrawable, pGC, pixel, spanData,

+		       x2, y2, x2, y2, projectLeft, projectLeft,

+		       &leftFace, &rightFace);

+	if (pGC->capStyle == CapRound)

+	{

+	    miLineArc (pDrawable, pGC, pixel, spanData,

+		       &leftFace, (LineFacePtr) NULL,

+		       (double)0.0, (double)0.0,

+		       TRUE);

+	    rightFace.dx = -1;	/* sleezy hack to make it work */

+	    miLineArc (pDrawable, pGC, pixel, spanData,

+		       (LineFacePtr) NULL, &rightFace,

+ 		       (double)0.0, (double)0.0,

+		       TRUE);

+	}

+    }

+    if (spanData)

+	miCleanupSpanData (pDrawable, pGC, spanData);

+}

+

+#define V_TOP	    0

+#define V_RIGHT	    1

+#define V_BOTTOM    2

+#define V_LEFT	    3

+

+static void

+miWideDashSegment (

+    DrawablePtr	    pDrawable,

+    GCPtr  	    pGC,

+    SpanDataPtr	    spanData,

+    int		    *pDashOffset,

+    int		    *pDashIndex,

+    int		    x1,

+    int		    y1,

+    int		    x2,

+    int		    y2,

+    Bool	    projectLeft,

+    Bool	    projectRight,

+    LineFacePtr	    leftFace,

+    LineFacePtr	    rightFace)

+{

+    int		    dashIndex, dashRemain;

+    unsigned char   *pDash;

+    double	    L, l;

+    double	    k;

+    PolyVertexRec   vertices[4];

+    PolyVertexRec   saveRight, saveBottom;

+    PolySlopeRec    slopes[4];

+    PolyEdgeRec	    left[2], right[2];

+    LineFaceRec	    lcapFace, rcapFace;

+    int		    nleft, nright;

+    int		    h;

+    int		    y;

+    int		    dy, dx;

+    unsigned long   pixel;

+    double	    LRemain;

+    double	    r;

+    double	    rdx, rdy;

+    double	    dashDx, dashDy;

+    double	    saveK = 0.0;

+    Bool	    first = TRUE;

+    double	    lcenterx, lcentery, rcenterx = 0.0, rcentery = 0.0;

+    unsigned long   fgPixel, bgPixel;

+    

+    dx = x2 - x1;

+    dy = y2 - y1;

+    dashIndex = *pDashIndex;

+    pDash = pGC->dash;

+    dashRemain = pDash[dashIndex] - *pDashOffset;

+    fgPixel = pGC->fgPixel;

+    bgPixel = pGC->bgPixel;

+    if (pGC->fillStyle == FillOpaqueStippled ||

+	pGC->fillStyle == FillTiled)

+    {

+	bgPixel = fgPixel;

+    }

+

+    l = ((double) pGC->lineWidth) / 2.0;

+    if (dx == 0)

+    {

+	L = dy;

+	rdx = 0;

+	rdy = l;

+	if (dy < 0)

+	{

+	    L = -dy;

+	    rdy = -l;

+	}

+    }

+    else if (dy == 0)

+    {

+	L = dx;

+	rdx = l;

+	rdy = 0;

+	if (dx < 0)

+	{

+	    L = -dx;

+	    rdx = -l;

+	}

+    }

+    else

+    {

+	L = hypot ((double) dx, (double) dy);

+	r = l / L;

+

+	rdx = r * dx;

+	rdy = r * dy;

+    }

+    k = l * L;

+    LRemain = L;

+    /* All position comments are relative to a line with dx and dy > 0,

+     * but the code does not depend on this */

+    /* top */

+    slopes[V_TOP].dx = dx;

+    slopes[V_TOP].dy = dy;

+    slopes[V_TOP].k = k;

+    /* right */

+    slopes[V_RIGHT].dx = -dy;

+    slopes[V_RIGHT].dy = dx;

+    slopes[V_RIGHT].k = 0;

+    /* bottom */

+    slopes[V_BOTTOM].dx = -dx;

+    slopes[V_BOTTOM].dy = -dy;

+    slopes[V_BOTTOM].k = k;

+    /* left */

+    slopes[V_LEFT].dx = dy;

+    slopes[V_LEFT].dy = -dx;

+    slopes[V_LEFT].k = 0;

+

+    /* preload the start coordinates */

+    vertices[V_RIGHT].x = vertices[V_TOP].x = rdy;

+    vertices[V_RIGHT].y = vertices[V_TOP].y = -rdx;

+

+    vertices[V_BOTTOM].x = vertices[V_LEFT].x = -rdy;

+    vertices[V_BOTTOM].y = vertices[V_LEFT].y = rdx;

+

+    if (projectLeft)

+    {

+	vertices[V_TOP].x -= rdx;

+	vertices[V_TOP].y -= rdy;

+

+	vertices[V_LEFT].x -= rdx;

+	vertices[V_LEFT].y -= rdy;

+

+	slopes[V_LEFT].k = rdx * dx + rdy * dy;

+    }

+

+    lcenterx = x1;

+    lcentery = y1;

+

+    if (pGC->capStyle == CapRound)

+    {

+	lcapFace.dx = dx;

+	lcapFace.dy = dy;

+	lcapFace.x = x1;

+	lcapFace.y = y1;

+

+	rcapFace.dx = -dx;

+	rcapFace.dy = -dy;

+	rcapFace.x = x1;

+	rcapFace.y = y1;

+    }

+    while (LRemain > dashRemain)

+    {

+	dashDx = (dashRemain * dx) / L;

+	dashDy = (dashRemain * dy) / L;

+

+	rcenterx = lcenterx + dashDx;

+	rcentery = lcentery + dashDy;

+

+	vertices[V_RIGHT].x += dashDx;

+	vertices[V_RIGHT].y += dashDy;

+

+	vertices[V_BOTTOM].x += dashDx;

+	vertices[V_BOTTOM].y += dashDy;

+

+	slopes[V_RIGHT].k = vertices[V_RIGHT].x * dx + vertices[V_RIGHT].y * dy;

+

+	if (pGC->lineStyle == LineDoubleDash || !(dashIndex & 1))

+	{

+	    if (pGC->lineStyle == LineOnOffDash &&

+ 	        pGC->capStyle == CapProjecting)

+	    {

+		saveRight = vertices[V_RIGHT];

+		saveBottom = vertices[V_BOTTOM];

+		saveK = slopes[V_RIGHT].k;

+		

+		if (!first)

+		{

+		    vertices[V_TOP].x -= rdx;

+		    vertices[V_TOP].y -= rdy;

+    

+		    vertices[V_LEFT].x -= rdx;

+		    vertices[V_LEFT].y -= rdy;

+

+		    slopes[V_LEFT].k = vertices[V_LEFT].x *

+				       slopes[V_LEFT].dy -

+				       vertices[V_LEFT].y *

+				       slopes[V_LEFT].dx;

+		}

+		

+		vertices[V_RIGHT].x += rdx;

+		vertices[V_RIGHT].y += rdy;

+

+		vertices[V_BOTTOM].x += rdx;

+		vertices[V_BOTTOM].y += rdy;

+

+		slopes[V_RIGHT].k = vertices[V_RIGHT].x *

+				   slopes[V_RIGHT].dy -

+				   vertices[V_RIGHT].y *

+				   slopes[V_RIGHT].dx;

+	    }

+	    y = miPolyBuildPoly (vertices, slopes, 4, x1, y1,

+			     	 left, right, &nleft, &nright, &h);

+	    pixel = (dashIndex & 1) ? bgPixel : fgPixel;

+	    miFillPolyHelper (pDrawable, pGC, pixel, spanData, y, h, left, right, nleft, nright);

+

+	    if (pGC->lineStyle == LineOnOffDash)

+	    {

+		switch (pGC->capStyle)

+		{

+		case CapProjecting:

+		    vertices[V_BOTTOM] = saveBottom;

+		    vertices[V_RIGHT] = saveRight;

+		    slopes[V_RIGHT].k = saveK;

+		    break;

+		case CapRound:

+		    if (!first)

+		    {

+		    	if (dx < 0)

+		    	{

+		    	    lcapFace.xa = -vertices[V_LEFT].x;

+		    	    lcapFace.ya = -vertices[V_LEFT].y;

+			    lcapFace.k = slopes[V_LEFT].k;

+		    	}

+		    	else

+		    	{

+		    	    lcapFace.xa = vertices[V_TOP].x;

+		    	    lcapFace.ya = vertices[V_TOP].y;

+			    lcapFace.k = -slopes[V_LEFT].k;

+		    	}

+		    	miLineArc (pDrawable, pGC, pixel, spanData,

+			       	   &lcapFace, (LineFacePtr) NULL,

+			       	   lcenterx, lcentery, FALSE);

+		    }

+		    if (dx < 0)

+		    {

+		    	rcapFace.xa = vertices[V_BOTTOM].x;

+		    	rcapFace.ya = vertices[V_BOTTOM].y;

+			rcapFace.k = slopes[V_RIGHT].k;

+		    }

+		    else

+		    {

+		    	rcapFace.xa = -vertices[V_RIGHT].x;

+		    	rcapFace.ya = -vertices[V_RIGHT].y;

+			rcapFace.k = -slopes[V_RIGHT].k;

+		    }

+		    miLineArc (pDrawable, pGC, pixel, spanData,

+			       (LineFacePtr) NULL, &rcapFace,

+			       rcenterx, rcentery, FALSE);

+		    break;

+	    	}

+	    }

+	}

+	LRemain -= dashRemain;

+	++dashIndex;

+	if (dashIndex == pGC->numInDashList)

+	    dashIndex = 0;

+	dashRemain = pDash[dashIndex];

+

+	lcenterx = rcenterx;

+	lcentery = rcentery;

+

+	vertices[V_TOP] = vertices[V_RIGHT];

+	vertices[V_LEFT] = vertices[V_BOTTOM];

+	slopes[V_LEFT].k = -slopes[V_RIGHT].k;

+	first = FALSE;

+    }

+

+    if (pGC->lineStyle == LineDoubleDash || !(dashIndex & 1))

+    {

+    	vertices[V_TOP].x -= dx;

+    	vertices[V_TOP].y -= dy;

+

+	vertices[V_LEFT].x -= dx;

+	vertices[V_LEFT].y -= dy;

+

+	vertices[V_RIGHT].x = rdy;

+	vertices[V_RIGHT].y = -rdx;

+

+	vertices[V_BOTTOM].x = -rdy;

+	vertices[V_BOTTOM].y = rdx;

+

+	

+	if (projectRight)

+	{

+	    vertices[V_RIGHT].x += rdx;

+	    vertices[V_RIGHT].y += rdy;

+    

+	    vertices[V_BOTTOM].x += rdx;

+	    vertices[V_BOTTOM].y += rdy;

+	    slopes[V_RIGHT].k = vertices[V_RIGHT].x *

+				slopes[V_RIGHT].dy -

+				vertices[V_RIGHT].y *

+				slopes[V_RIGHT].dx;

+	}

+	else

+	    slopes[V_RIGHT].k = 0;

+

+	if (!first && pGC->lineStyle == LineOnOffDash &&

+	    pGC->capStyle == CapProjecting)

+	{

+	    vertices[V_TOP].x -= rdx;

+	    vertices[V_TOP].y -= rdy;

+

+	    vertices[V_LEFT].x -= rdx;

+	    vertices[V_LEFT].y -= rdy;

+	    slopes[V_LEFT].k = vertices[V_LEFT].x *

+			       slopes[V_LEFT].dy -

+			       vertices[V_LEFT].y *

+			       slopes[V_LEFT].dx;

+	}

+	else

+	    slopes[V_LEFT].k += dx * dx + dy * dy;

+

+

+	y = miPolyBuildPoly (vertices, slopes, 4, x2, y2,

+			     left, right, &nleft, &nright, &h);

+

+	pixel = (dashIndex & 1) ? pGC->bgPixel : pGC->fgPixel;

+	miFillPolyHelper (pDrawable, pGC, pixel, spanData, y, h, left, right, nleft, nright);

+	if (!first && pGC->lineStyle == LineOnOffDash &&

+	    pGC->capStyle == CapRound)

+	{

+	    lcapFace.x = x2;

+	    lcapFace.y = y2;

+	    if (dx < 0)

+	    {

+		lcapFace.xa = -vertices[V_LEFT].x;

+		lcapFace.ya = -vertices[V_LEFT].y;

+		lcapFace.k = slopes[V_LEFT].k;

+	    }

+	    else

+	    {

+		lcapFace.xa = vertices[V_TOP].x;

+		lcapFace.ya = vertices[V_TOP].y;

+		lcapFace.k = -slopes[V_LEFT].k;

+	    }

+	    miLineArc (pDrawable, pGC, pixel, spanData,

+		       &lcapFace, (LineFacePtr) NULL,

+		       rcenterx, rcentery, FALSE);

+	}

+    }

+    dashRemain = ((double) dashRemain) - LRemain;

+    if (dashRemain == 0)

+    {

+	dashIndex++;

+	if (dashIndex == pGC->numInDashList)

+	    dashIndex = 0;

+	dashRemain = pDash[dashIndex];

+    }

+

+    leftFace->x = x1;

+    leftFace->y = y1;

+    leftFace->dx = dx;

+    leftFace->dy = dy;

+    leftFace->xa = rdy;

+    leftFace->ya = -rdx;

+    leftFace->k = k;

+

+    rightFace->x = x2;

+    rightFace->y = y2;

+    rightFace->dx = -dx;

+    rightFace->dy = -dy;

+    rightFace->xa = -rdy;

+    rightFace->ya = rdx;

+    rightFace->k = k;

+

+    *pDashIndex = dashIndex;

+    *pDashOffset = pDash[dashIndex] - dashRemain;

+}

+

+void

+miWideDash (DrawablePtr pDrawable, GCPtr pGC,

+	    int mode, int npt, DDXPointPtr pPts)

+{

+    int			x1, y1, x2, y2;

+    unsigned long	pixel;

+    Bool		projectLeft, projectRight;

+    LineFaceRec		leftFace, rightFace, prevRightFace;

+    LineFaceRec		firstFace;

+    int			first;

+    int			dashIndex, dashOffset;

+    int			prevDashIndex;

+    SpanDataRec		spanDataRec;

+    SpanDataPtr		spanData;

+    Bool		somethingDrawn = FALSE;

+    Bool		selfJoin;

+    Bool		endIsFg = FALSE, startIsFg = FALSE;

+    Bool		firstIsFg = FALSE, prevIsFg = FALSE;

+

+#if 0

+    /* XXX backward compatibility */

+    if (pGC->lineWidth == 0)

+    {

+	miZeroDashLine (pDrawable, pGC, mode, npt, pPts);

+	return;

+    }

+#endif

+    if (pGC->lineStyle == LineDoubleDash && 

+	(pGC->fillStyle == FillOpaqueStippled || pGC->fillStyle == FillTiled))

+    {

+	miWideLine (pDrawable, pGC, mode, npt, pPts);

+	return;

+    }

+    if (npt == 0)

+	return;

+    spanData = miSetupSpanData (pGC, &spanDataRec, npt);

+    x2 = pPts->x;

+    y2 = pPts->y;

+    first = TRUE;

+    selfJoin = FALSE;

+    if (mode == CoordModePrevious)

+    {

+	int nptTmp;

+	DDXPointPtr pPtsTmp;

+

+	x1 = x2;

+	y1 = y2;

+	nptTmp = npt;

+	pPtsTmp = pPts + 1;

+	while (--nptTmp)

+	{

+	    x1 += pPtsTmp->x;

+	    y1 += pPtsTmp->y;

+	    ++pPtsTmp;

+	}

+	if (x2 == x1 && y2 == y1)

+	    selfJoin = TRUE;

+    }

+    else if (x2 == pPts[npt-1].x && y2 == pPts[npt-1].y)

+    {

+	selfJoin = TRUE;

+    }

+    projectLeft = pGC->capStyle == CapProjecting && !selfJoin;

+    projectRight = FALSE;

+    dashIndex = 0;

+    dashOffset = 0;

+    miStepDash ((int)pGC->dashOffset, &dashIndex,

+	        pGC->dash, (int)pGC->numInDashList, &dashOffset);

+    while (--npt)

+    {

+	x1 = x2;

+	y1 = y2;

+	++pPts;

+	x2 = pPts->x;

+	y2 = pPts->y;

+	if (mode == CoordModePrevious)

+	{

+	    x2 += x1;

+	    y2 += y1;

+	}

+	if (x1 != x2 || y1 != y2)

+	{

+	    somethingDrawn = TRUE;

+	    if (npt == 1 && pGC->capStyle == CapProjecting && 

+		(!selfJoin || !firstIsFg))

+		projectRight = TRUE;

+	    prevDashIndex = dashIndex;

+	    miWideDashSegment (pDrawable, pGC, spanData, &dashOffset, &dashIndex,

+				x1, y1, x2, y2,

+				projectLeft, projectRight, &leftFace, &rightFace);

+	    startIsFg = !(prevDashIndex & 1);

+	    endIsFg = (dashIndex & 1) ^ (dashOffset != 0);

+	    if (pGC->lineStyle == LineDoubleDash || startIsFg)

+	    {

+	    	pixel = startIsFg ? pGC->fgPixel : pGC->bgPixel;

+	    	if (first || (pGC->lineStyle == LineOnOffDash && !prevIsFg))

+	    	{

+	    	    if (first && selfJoin)

+		    {

+		    	firstFace = leftFace;

+			firstIsFg = startIsFg;

+		    }

+	    	    else if (pGC->capStyle == CapRound)

+		    	miLineArc (pDrawable, pGC, pixel, spanData,

+			       	   &leftFace, (LineFacePtr) NULL,

+			       	   (double)0.0, (double)0.0, TRUE);

+	    	}

+	    	else

+	    	{

+	    	    miLineJoin (pDrawable, pGC, pixel, spanData, &leftFace,

+		            	&prevRightFace);

+	    	}

+	    }

+	    prevRightFace = rightFace;

+	    prevIsFg = endIsFg;

+	    first = FALSE;

+	    projectLeft = FALSE;

+	}

+	if (npt == 1 && somethingDrawn)

+	{

+	    if (pGC->lineStyle == LineDoubleDash || endIsFg)

+	    {

+		pixel = endIsFg ? pGC->fgPixel : pGC->bgPixel;

+		if (selfJoin && (pGC->lineStyle == LineDoubleDash || firstIsFg))

+		{

+		    miLineJoin (pDrawable, pGC, pixel, spanData, &firstFace,

+				&rightFace);

+		}

+		else 

+		{

+		    if (pGC->capStyle == CapRound)

+			miLineArc (pDrawable, pGC, pixel, spanData,

+				    (LineFacePtr) NULL, &rightFace,

+				    (double)0.0, (double)0.0, TRUE);

+		}

+	    }

+	    else

+	    {

+		/* glue a cap to the start of the line if

+		 * we're OnOffDash and ended on odd dash

+		 */

+		if (selfJoin && firstIsFg)

+		{

+		    pixel = pGC->fgPixel;

+		    if (pGC->capStyle == CapProjecting)

+			miLineProjectingCap (pDrawable, pGC, pixel, spanData,

+				    &firstFace, TRUE,

+				    (double)0.0, (double)0.0, TRUE);

+		    else if (pGC->capStyle == CapRound)

+			miLineArc (pDrawable, pGC, pixel, spanData,

+				    &firstFace, (LineFacePtr) NULL,

+				    (double)0.0, (double)0.0, TRUE);

+		}

+	    }

+	}

+    }

+    /* handle crock where all points are coincident */

+    if (!somethingDrawn && (pGC->lineStyle == LineDoubleDash || !(dashIndex & 1)))

+    {

+	/* not the same as endIsFg computation above */

+	pixel = (dashIndex & 1) ? pGC->bgPixel : pGC->fgPixel;

+	switch (pGC->capStyle) {

+	case CapRound:

+	    miLineArc (pDrawable, pGC, pixel, spanData,

+		       (LineFacePtr) NULL, (LineFacePtr) NULL,

+		       (double)x2, (double)y2,

+		       FALSE);

+	    break;

+	case CapProjecting:

+	    x1 = pGC->lineWidth;

+	    miFillRectPolyHelper (pDrawable, pGC, pixel, spanData,

+				  x2 - (x1 >> 1), y2 - (x1 >> 1), x1, x1);

+	    break;

+	}

+    }

+    if (spanData)

+	miCleanupSpanData (pDrawable, pGC, spanData);

+}

diff --git a/xorg-server/mi/miwideline.h b/xorg-server/mi/miwideline.h
index 1665ebfb1..05d026a38 100644
--- a/xorg-server/mi/miwideline.h
+++ b/xorg-server/mi/miwideline.h
@@ -1,116 +1,120 @@
-/*
-
-Copyright 1988, 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.
-
-*/
-
-/* Author:  Keith Packard, MIT X Consortium */
-
-#include "mispans.h"
-#include "mifpoly.h" /* for ICEIL */
-
-/*
- * Polygon edge description for integer wide-line routines
- */
-
-typedef struct _PolyEdge {
-    int	    height;	/* number of scanlines to process */
-    int	    x;		/* starting x coordinate */
-    int	    stepx;	/* fixed integral dx */
-    int	    signdx;	/* variable dx sign */
-    int	    e;		/* initial error term */
-    int	    dy;
-    int	    dx;
-} PolyEdgeRec, *PolyEdgePtr;
-
-#define SQSECANT 108.856472512142 /* 1/sin^2(11/2) - miter limit constant */
-
-/*
- * types for general polygon routines
- */
-
-typedef struct _PolyVertex {
-    double  x, y;
-} PolyVertexRec, *PolyVertexPtr;
-
-typedef struct _PolySlope {
-    int	    dx, dy;
-    double  k;	    /* x0 * dy - y0 * dx */
-} PolySlopeRec, *PolySlopePtr;
-
-/*
- * Line face description for caps/joins
- */
-
-typedef struct _LineFace {
-    double  xa, ya;
-    int	    dx, dy;
-    int	    x, y;
-    double  k;
-} LineFaceRec, *LineFacePtr;
-
-/*
- * macros for polygon fillers
- */
-
-#define MILINESETPIXEL(pDrawable, pGC, pixel, oldPixel) { \
-    oldPixel = pGC->fgPixel; \
-    if (pixel != oldPixel) { \
-	DoChangeGC (pGC, GCForeground, (XID *) &pixel, FALSE); \
-	ValidateGC (pDrawable, pGC); \
-    } \
-}
-#define MILINERESETPIXEL(pDrawable, pGC, pixel, oldPixel) { \
-    if (pixel != oldPixel) { \
-	DoChangeGC (pGC, GCForeground, (XID *) &oldPixel, FALSE); \
-	ValidateGC (pDrawable, pGC); \
-    } \
-}
-
-extern _X_EXPORT void miRoundJoinClip(
-    LineFacePtr /*pLeft*/,
-    LineFacePtr /*pRight*/,
-    PolyEdgePtr /*edge1*/,
-    PolyEdgePtr /*edge2*/,
-    int * /*y1*/,
-    int * /*y2*/,
-    Bool * /*left1*/,
-    Bool * /*left2*/
-);
-
-extern _X_EXPORT int miRoundCapClip(
-    LineFacePtr /*face*/,
-    Bool /*isInt*/,
-    PolyEdgePtr /*edge*/,
-    Bool * /*leftEdge*/
-);
-
-extern _X_EXPORT int miPolyBuildEdge(double x0, double y0, double k, int dx, int dy,
-				int xi, int yi, int left, PolyEdgePtr edge);
-extern _X_EXPORT int miPolyBuildPoly(PolyVertexPtr vertices, PolySlopePtr slopes,
-				int count, int xi, int yi, PolyEdgePtr left,
-				PolyEdgePtr right, int *pnleft, int *pnright,
-				int *h);
-
+/*

+

+Copyright 1988, 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.

+

+*/

+

+/* Author:  Keith Packard, MIT X Consortium */

+

+#include "mispans.h"

+#include "mifpoly.h" /* for ICEIL */

+

+/*

+ * Polygon edge description for integer wide-line routines

+ */

+

+typedef struct _PolyEdge {

+    int	    height;	/* number of scanlines to process */

+    int	    x;		/* starting x coordinate */

+    int	    stepx;	/* fixed integral dx */

+    int	    signdx;	/* variable dx sign */

+    int	    e;		/* initial error term */

+    int	    dy;

+    int	    dx;

+} PolyEdgeRec, *PolyEdgePtr;

+

+#define SQSECANT 108.856472512142 /* 1/sin^2(11/2) - miter limit constant */

+

+/*

+ * types for general polygon routines

+ */

+

+typedef struct _PolyVertex {

+    double  x, y;

+} PolyVertexRec, *PolyVertexPtr;

+

+typedef struct _PolySlope {

+    int	    dx, dy;

+    double  k;	    /* x0 * dy - y0 * dx */

+} PolySlopeRec, *PolySlopePtr;

+

+/*

+ * Line face description for caps/joins

+ */

+

+typedef struct _LineFace {

+    double  xa, ya;

+    int	    dx, dy;

+    int	    x, y;

+    double  k;

+} LineFaceRec, *LineFacePtr;

+

+/*

+ * macros for polygon fillers

+ */

+

+#define MILINESETPIXEL(pDrawable, pGC, pixel, oldPixel) { \

+    oldPixel = pGC->fgPixel; \

+    if (pixel != oldPixel) { \

+	ChangeGCVal gcval; \

+	gcval.val = pixel; \

+	ChangeGC (NullClient, pGC, GCForeground, &gcval); \

+	ValidateGC (pDrawable, pGC); \

+    } \

+}

+#define MILINERESETPIXEL(pDrawable, pGC, pixel, oldPixel) { \

+    if (pixel != oldPixel) { \

+	ChangeGCVal gcval; \

+	gcval.val = oldPixel; \

+	ChangeGC (NullClient, pGC, GCForeground, &gcval); \

+	ValidateGC (pDrawable, pGC); \

+    } \

+}

+

+extern _X_EXPORT void miRoundJoinClip(

+    LineFacePtr /*pLeft*/,

+    LineFacePtr /*pRight*/,

+    PolyEdgePtr /*edge1*/,

+    PolyEdgePtr /*edge2*/,

+    int * /*y1*/,

+    int * /*y2*/,

+    Bool * /*left1*/,

+    Bool * /*left2*/

+);

+

+extern _X_EXPORT int miRoundCapClip(

+    LineFacePtr /*face*/,

+    Bool /*isInt*/,

+    PolyEdgePtr /*edge*/,

+    Bool * /*leftEdge*/

+);

+

+extern _X_EXPORT int miPolyBuildEdge(double x0, double y0, double k, int dx, int dy,

+				int xi, int yi, int left, PolyEdgePtr edge);

+extern _X_EXPORT int miPolyBuildPoly(PolyVertexPtr vertices, PolySlopePtr slopes,

+				int count, int xi, int yi, PolyEdgePtr left,

+				PolyEdgePtr right, int *pnleft, int *pnright,

+				int *h);

+

diff --git a/xorg-server/mi/miwindow.c b/xorg-server/mi/miwindow.c
index c2333938e..479085787 100644
--- a/xorg-server/mi/miwindow.c
+++ b/xorg-server/mi/miwindow.c
@@ -1,836 +1,836 @@
-
-/***********************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include "regionstr.h"
-#include "region.h"
-#include "mi.h"
-#include "windowstr.h"
-#include "scrnintstr.h"
-#include "pixmapstr.h"
-#include "mivalidate.h"
-
-void
-miClearToBackground(WindowPtr pWin,
-                    int x, int y, int w, int h,
-                    Bool generateExposures)
-{
-    BoxRec box;
-    RegionRec	reg;
-    RegionPtr pBSReg = NullRegion;
-    ScreenPtr	pScreen;
-    BoxPtr  extents;
-    int	    x1, y1, x2, y2;
-
-    /* compute everything using ints to avoid overflow */
-
-    x1 = pWin->drawable.x + x;
-    y1 = pWin->drawable.y + y;
-    if (w)
-        x2 = x1 + (int) w;
-    else
-        x2 = x1 + (int) pWin->drawable.width - (int) x;
-    if (h)
-        y2 = y1 + h;	
-    else
-        y2 = y1 + (int) pWin->drawable.height - (int) y;
-
-    extents = &pWin->clipList.extents;
-    
-    /* clip the resulting rectangle to the window clipList extents.  This
-     * makes sure that the result will fit in a box, given that the
-     * screen is < 32768 on a side.
-     */
-
-    if (x1 < extents->x1)
-	x1 = extents->x1;
-    if (x2 > extents->x2)
-	x2 = extents->x2;
-    if (y1 < extents->y1)
-	y1 = extents->y1;
-    if (y2 > extents->y2)
-	y2 = extents->y2;
-
-    if (x2 <= x1 || y2 <= y1)
-    {
-	x2 = x1 = 0;
-	y2 = y1 = 0;
-    }
-
-    box.x1 = x1;
-    box.x2 = x2;
-    box.y1 = y1;
-    box.y2 = y2;
-
-    pScreen = pWin->drawable.pScreen;
-    REGION_INIT(pScreen, &reg, &box, 1);
-
-    REGION_INTERSECT(pScreen, &reg, &reg, &pWin->clipList);
-    if (generateExposures)
-	(*pScreen->WindowExposures)(pWin, &reg, pBSReg);
-    else if (pWin->backgroundState != None)
-	miPaintWindow(pWin, &reg, PW_BACKGROUND);
-    REGION_UNINIT(pScreen, &reg);
-    if (pBSReg)
-	REGION_DESTROY(pScreen, pBSReg);
-}
-
-void
-miMarkWindow(WindowPtr pWin)
-{
-    ValidatePtr val;
-
-    if (pWin->valdata)
-	return;
-    val = (ValidatePtr)xnfalloc(sizeof(ValidateRec));
-    val->before.oldAbsCorner.x = pWin->drawable.x;
-    val->before.oldAbsCorner.y = pWin->drawable.y;
-    val->before.borderVisible = NullRegion;
-    val->before.resized = FALSE;
-    pWin->valdata = val;
-}
-
-Bool
-miMarkOverlappedWindows(WindowPtr pWin, WindowPtr pFirst, WindowPtr *ppLayerWin)
-{
-    BoxPtr box;
-    WindowPtr pChild, pLast;
-    Bool anyMarked = FALSE;
-    MarkWindowProcPtr MarkWindow = pWin->drawable.pScreen->MarkWindow;
-    ScreenPtr pScreen;
-
-    pScreen = pWin->drawable.pScreen;
-
-    /* single layered systems are easy */
-    if (ppLayerWin) *ppLayerWin = pWin;
-
-    if (pWin == pFirst)
-    {
-	/* Blindly mark pWin and all of its inferiors.	 This is a slight
-	 * overkill if there are mapped windows that outside pWin's border,
-	 * but it's better than wasting time on RectIn checks.
-	 */
-	pChild = pWin;
-	while (1)
-	{
-	    if (pChild->viewable)
-	    {
-		if (REGION_BROKEN (pScreen, &pChild->winSize))
-		    SetWinSize (pChild);
-		if (REGION_BROKEN (pScreen, &pChild->borderSize))
-		    SetBorderSize (pChild);
-		(* MarkWindow)(pChild);
-		if (pChild->firstChild)
-		{
-		    pChild = pChild->firstChild;
-		    continue;
-		}
-	    }
-	    while (!pChild->nextSib && (pChild != pWin))
-		pChild = pChild->parent;
-	    if (pChild == pWin)
-		break;
-	    pChild = pChild->nextSib;
-	}
-	anyMarked = TRUE;
-	pFirst = pFirst->nextSib;
-    }
-    if ( (pChild = pFirst) )
-    {
-	box = REGION_EXTENTS(pChild->drawable.pScreen, &pWin->borderSize);
-	pLast = pChild->parent->lastChild;
-	while (1)
-	{
-	    if (pChild->viewable)
-	    {
-		if (REGION_BROKEN (pScreen, &pChild->winSize))
-		    SetWinSize (pChild);
-		if (REGION_BROKEN (pScreen, &pChild->borderSize))
-		    SetBorderSize (pChild);
-		if (RECT_IN_REGION(pScreen, &pChild->borderSize, box))
-		{
-		    (* MarkWindow)(pChild);
-		    anyMarked = TRUE;
-		    if (pChild->firstChild)
-		    {
-			pChild = pChild->firstChild;
-			continue;
-		    }
-		}
-	    }
-	    while (!pChild->nextSib && (pChild != pLast))
-		pChild = pChild->parent;
-	    if (pChild == pLast)
-		break;
-	    pChild = pChild->nextSib;
-	}
-    }
-    if (anyMarked)
-	(* MarkWindow)(pWin->parent);
-    return anyMarked;
-}
-
-/*****
- *  miHandleValidateExposures(pWin)
- *    starting at pWin, draw background in any windows that have exposure
- *    regions, translate the regions, restore any backing store,
- *    and then send any regions still exposed to the client
- *****/
-void
-miHandleValidateExposures(WindowPtr pWin)
-{
-    WindowPtr pChild;
-    ValidatePtr val;
-    ScreenPtr pScreen;
-    WindowExposuresProcPtr WindowExposures;
-
-    pScreen = pWin->drawable.pScreen;
-
-    pChild = pWin;
-    WindowExposures = pChild->drawable.pScreen->WindowExposures;
-    while (1)
-    {
-	if ( (val = pChild->valdata) )
-	{
-	    if (REGION_NOTEMPTY(pScreen, &val->after.borderExposed))
-		miPaintWindow(pChild, &val->after.borderExposed, PW_BORDER);
-	    REGION_UNINIT(pScreen, &val->after.borderExposed);
-	    (*WindowExposures)(pChild, &val->after.exposed, NullRegion);
-	    REGION_UNINIT(pScreen, &val->after.exposed);
-	    xfree(val);
-	    pChild->valdata = NULL;
-	    if (pChild->firstChild)
-	    {
-		pChild = pChild->firstChild;
-		continue;
-	    }
-	}
-	while (!pChild->nextSib && (pChild != pWin))
-	    pChild = pChild->parent;
-	if (pChild == pWin)
-	    break;
-	pChild = pChild->nextSib;
-    }
-}
-
-void
-miMoveWindow(WindowPtr pWin, int x, int y, WindowPtr pNextSib, VTKind kind)
-{
-    WindowPtr pParent;
-    Bool WasViewable = (Bool)(pWin->viewable);
-    short bw;
-    RegionPtr oldRegion = NULL;
-    DDXPointRec oldpt;
-    Bool anyMarked = FALSE;
-    ScreenPtr pScreen;
-    WindowPtr windowToValidate;
-    WindowPtr pLayerWin;
-
-    /* if this is a root window, can't be moved */
-    if (!(pParent = pWin->parent))
-       return ;
-    pScreen = pWin->drawable.pScreen;
-    bw = wBorderWidth (pWin);
-
-    oldpt.x = pWin->drawable.x;
-    oldpt.y = pWin->drawable.y;
-    if (WasViewable)
-    {
-	oldRegion = REGION_CREATE(pScreen, NullBox, 1);
-	REGION_COPY(pScreen, oldRegion, &pWin->borderClip);
-	anyMarked = (*pScreen->MarkOverlappedWindows)(pWin, pWin, &pLayerWin);
-    }
-    pWin->origin.x = x + (int)bw;
-    pWin->origin.y = y + (int)bw;
-    x = pWin->drawable.x = pParent->drawable.x + x + (int)bw;
-    y = pWin->drawable.y = pParent->drawable.y + y + (int)bw;
-
-    SetWinSize (pWin);
-    SetBorderSize (pWin);
-
-    (*pScreen->PositionWindow)(pWin, x, y);
-
-    windowToValidate = MoveWindowInStack(pWin, pNextSib);
-
-    ResizeChildrenWinSize(pWin, x - oldpt.x, y - oldpt.y, 0, 0);
-
-    if (WasViewable)
-    {
-	if (pLayerWin == pWin)
-	    anyMarked |= (*pScreen->MarkOverlappedWindows)
-				(pWin, windowToValidate, NULL);
-	else
-	    anyMarked |= (*pScreen->MarkOverlappedWindows)
-				(pWin, pLayerWin, NULL);
-
-
-	if (anyMarked)
-	{
-	    (*pScreen->ValidateTree)(pLayerWin->parent, NullWindow, kind);
-	    (* pWin->drawable.pScreen->CopyWindow)(pWin, oldpt, oldRegion);
-	    REGION_DESTROY(pScreen, oldRegion);
-	    /* XXX need to retile border if ParentRelative origin */
-	    (*pScreen->HandleExposures)(pLayerWin->parent);
-	}
-	if (anyMarked && pScreen->PostValidateTree)
-	    (*pScreen->PostValidateTree)(pLayerWin->parent, NullWindow, kind);
-    }
-    if (pWin->realized)
-	WindowsRestructured ();
-}
-
-
-/*
- * pValid is a region of the screen which has been
- * successfully copied -- recomputed exposed regions for affected windows
- */
-
-static int
-miRecomputeExposures (
-    WindowPtr	pWin,
-    pointer		value) /* must conform to VisitWindowProcPtr */
-{
-    ScreenPtr	pScreen;
-    RegionPtr	pValid = (RegionPtr)value;
-
-    if (pWin->valdata)
-    {
-#ifdef COMPOSITE
-	/*
-	 * Redirected windows are not affected by parent window
-	 * gravity manipulations, so don't recompute their
-	 * exposed areas here.
-	 */
-	if (pWin->redirectDraw != RedirectDrawNone)
-	    return WT_DONTWALKCHILDREN;
-#endif
-	pScreen = pWin->drawable.pScreen;
-	/*
-	 * compute exposed regions of this window
-	 */
-	REGION_SUBTRACT(pScreen, &pWin->valdata->after.exposed,
-			&pWin->clipList, pValid);
-	/*
-	 * compute exposed regions of the border
-	 */
-	REGION_SUBTRACT(pScreen, &pWin->valdata->after.borderExposed,
-			     &pWin->borderClip, &pWin->winSize);
-	REGION_SUBTRACT(pScreen, &pWin->valdata->after.borderExposed,
-			     &pWin->valdata->after.borderExposed, pValid);
-	return WT_WALKCHILDREN;
-    }
-    return WT_NOMATCH;
-}
-
-void
-miSlideAndSizeWindow(WindowPtr pWin,
-                     int x, int y,
-                     unsigned int w, unsigned int h,
-                     WindowPtr pSib)
-{
-    WindowPtr pParent;
-    Bool WasViewable = (Bool)(pWin->viewable);
-    unsigned short width = pWin->drawable.width,
-		   height = pWin->drawable.height;
-    short oldx = pWin->drawable.x,
-	  oldy = pWin->drawable.y;
-    int bw = wBorderWidth (pWin);
-    short dw, dh;
-    DDXPointRec oldpt;
-    RegionPtr oldRegion = NULL;
-    Bool anyMarked = FALSE;
-    ScreenPtr pScreen;
-    WindowPtr pFirstChange;
-    WindowPtr pChild;
-    RegionPtr	gravitate[StaticGravity + 1];
-    unsigned g;
-    int		nx, ny;		/* destination x,y */
-    int		newx, newy;	/* new inner window position */
-    RegionPtr	pRegion = NULL;
-    RegionPtr	destClip;	/* portions of destination already written */
-    RegionPtr	oldWinClip = NULL;	/* old clip list for window */
-    RegionPtr	borderVisible = NullRegion; /* visible area of the border */
-    Bool	shrunk = FALSE; /* shrunk in an inner dimension */
-    Bool	moved = FALSE;	/* window position changed */
-    WindowPtr  pLayerWin;
-
-    /* if this is a root window, can't be resized */
-    if (!(pParent = pWin->parent))
-	return ;
-
-    pScreen = pWin->drawable.pScreen;
-    newx = pParent->drawable.x + x + bw;
-    newy = pParent->drawable.y + y + bw;
-    if (WasViewable)
-    {
-	anyMarked = FALSE;
-	/*
-	 * save the visible region of the window
-	 */
-	oldRegion = REGION_CREATE(pScreen, NullBox, 1);
-	REGION_COPY(pScreen, oldRegion, &pWin->winSize);
-
-	/*
-	 * categorize child windows into regions to be moved
-	 */
-	for (g = 0; g <= StaticGravity; g++)
-	    gravitate[g] = (RegionPtr) NULL;
-	for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib)
-	{
-	    g = pChild->winGravity;
-	    if (g != UnmapGravity)
-	    {
-		if (!gravitate[g])
-		    gravitate[g] = REGION_CREATE(pScreen, NullBox, 1);
-		REGION_UNION(pScreen, gravitate[g],
-				   gravitate[g], &pChild->borderClip);
-	    }
-	    else
-	    {
-		UnmapWindow(pChild, TRUE);
-		anyMarked = TRUE;
-	    }
-	}
-	anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pWin, 
-						       &pLayerWin);
-
-	oldWinClip = NULL;
-	if (pWin->bitGravity != ForgetGravity)
-	{
-	    oldWinClip = REGION_CREATE(pScreen, NullBox, 1);
-	    REGION_COPY(pScreen, oldWinClip, &pWin->clipList);
-	}
-	/*
-	 * if the window is changing size, borderExposed
-	 * can't be computed correctly without some help.
-	 */
-	if (pWin->drawable.height > h || pWin->drawable.width > w)
-	    shrunk = TRUE;
-
-	if (newx != oldx || newy != oldy)
-	    moved = TRUE;
-
-	if ((pWin->drawable.height != h || pWin->drawable.width != w) &&
-	    HasBorder (pWin))
-	{
-	    borderVisible = REGION_CREATE(pScreen, NullBox, 1);
-	    /* for tiled borders, we punt and draw the whole thing */
-	    if (pWin->borderIsPixel || !moved)
-	    {
-		if (shrunk || moved)
-		    REGION_SUBTRACT(pScreen, borderVisible,
-					  &pWin->borderClip,
-					  &pWin->winSize);
-		else
-		    REGION_COPY(pScreen, borderVisible,
-					    &pWin->borderClip);
-	    }
-	}
-    }
-    pWin->origin.x = x + bw;
-    pWin->origin.y = y + bw;
-    pWin->drawable.height = h;
-    pWin->drawable.width = w;
-
-    x = pWin->drawable.x = newx;
-    y = pWin->drawable.y = newy;
-
-    SetWinSize (pWin);
-    SetBorderSize (pWin);
-
-    dw = (int)w - (int)width;
-    dh = (int)h - (int)height;
-    ResizeChildrenWinSize(pWin, x - oldx, y - oldy, dw, dh);
-
-    /* let the hardware adjust background and border pixmaps, if any */
-    (*pScreen->PositionWindow)(pWin, x, y);
-
-    pFirstChange = MoveWindowInStack(pWin, pSib);
-
-    if (WasViewable)
-    {
-	pRegion = REGION_CREATE(pScreen, NullBox, 1);
-
-	if (pLayerWin == pWin)
-	    anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pFirstChange,
-						NULL);
-	else
-	    anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pLayerWin,
-						NULL);
-
-	if (pWin->valdata)
-	{
-	    pWin->valdata->before.resized = TRUE;
-	    pWin->valdata->before.borderVisible = borderVisible;
-	}
-
-
-	if (anyMarked)
-	    (*pScreen->ValidateTree)(pLayerWin->parent, pFirstChange, VTOther);
-	/*
-	 * the entire window is trashed unless bitGravity
-	 * recovers portions of it
-	 */
-	REGION_COPY(pScreen, &pWin->valdata->after.exposed, &pWin->clipList);
-    }
-
-    GravityTranslate (x, y, oldx, oldy, dw, dh, pWin->bitGravity, &nx, &ny);
-
-    if (WasViewable)
-    {
-	/* avoid the border */
-	if (HasBorder (pWin))
-	{
-	    int	offx, offy, dx, dy;
-
-	    /* kruft to avoid double translates for each gravity */
-	    offx = 0;
-	    offy = 0;
-	    for (g = 0; g <= StaticGravity; g++)
-	    {
-		if (!gravitate[g])
-		    continue;
-
-		/* align winSize to gravitate[g].
-		 * winSize is in new coordinates,
-		 * gravitate[g] is still in old coordinates */
-		GravityTranslate (x, y, oldx, oldy, dw, dh, g, &nx, &ny);
-		
-		dx = (oldx - nx) - offx;
-		dy = (oldy - ny) - offy;
-		if (dx || dy)
-		{
-		    REGION_TRANSLATE(pScreen, &pWin->winSize, dx, dy);
-		    offx += dx;
-		    offy += dy;
-		}
-		REGION_INTERSECT(pScreen, gravitate[g], gravitate[g],
-				 &pWin->winSize);
-	    }
-	    /* get winSize back where it belongs */
-	    if (offx || offy)
-		REGION_TRANSLATE(pScreen, &pWin->winSize, -offx, -offy);
-	}
-	/*
-	 * add screen bits to the appropriate bucket
-	 */
-
-	if (oldWinClip)
-	{
-	    /*
-	     * clip to new clipList
-	     */
-	    REGION_COPY(pScreen, pRegion, oldWinClip);
-	    REGION_TRANSLATE(pScreen, pRegion, nx - oldx, ny - oldy);
-	    REGION_INTERSECT(pScreen, oldWinClip, pRegion, &pWin->clipList);
-	    /*
-	     * don't step on any gravity bits which will be copied after this
-	     * region.	Note -- this assumes that the regions will be copied
-	     * in gravity order.
-	     */
-	    for (g = pWin->bitGravity + 1; g <= StaticGravity; g++)
-	    {
-		if (gravitate[g])
-		    REGION_SUBTRACT(pScreen, oldWinClip, oldWinClip,
-					gravitate[g]);
-	    }
-	    REGION_TRANSLATE(pScreen, oldWinClip, oldx - nx, oldy - ny);
-	    g = pWin->bitGravity;
-	    if (!gravitate[g])
-		gravitate[g] = oldWinClip;
-	    else
-	    {
-		REGION_UNION(pScreen, gravitate[g], gravitate[g], oldWinClip);
-		REGION_DESTROY(pScreen, oldWinClip);
-	    }
-	}
-
-	/*
-	 * move the bits on the screen
-	 */
-
-	destClip = NULL;
-
-	for (g = 0; g <= StaticGravity; g++)
-	{
-	    if (!gravitate[g])
-		continue;
-
-	    GravityTranslate (x, y, oldx, oldy, dw, dh, g, &nx, &ny);
-
-	    oldpt.x = oldx + (x - nx);
-	    oldpt.y = oldy + (y - ny);
-
-	    /* Note that gravitate[g] is *translated* by CopyWindow */
-
-	    /* only copy the remaining useful bits */
-
-	    REGION_INTERSECT(pScreen, gravitate[g], gravitate[g], oldRegion);
-
-	    /* clip to not overwrite already copied areas */
-
-	    if (destClip) {
-		REGION_TRANSLATE(pScreen, destClip, oldpt.x - x, oldpt.y - y);
-		REGION_SUBTRACT(pScreen, gravitate[g], gravitate[g], destClip);
-		REGION_TRANSLATE(pScreen, destClip, x - oldpt.x, y - oldpt.y);
-	    }
-
-	    /* and move those bits */
-
-	    if (oldpt.x != x || oldpt.y != y
-#ifdef COMPOSITE
-		|| pWin->redirectDraw
-#endif
-		)
-	    {
-		(*pWin->drawable.pScreen->CopyWindow)(pWin, oldpt, gravitate[g]);
-	    }
-
-	    /* remove any overwritten bits from the remaining useful bits */
-
-	    REGION_SUBTRACT(pScreen, oldRegion, oldRegion, gravitate[g]);
-
-	    /*
-	     * recompute exposed regions of child windows
-	     */
-	
-	    for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib)
-	    {
-		if (pChild->winGravity != g)
-		    continue;
-		REGION_INTERSECT(pScreen, pRegion,
-				       &pChild->borderClip, gravitate[g]);
-		TraverseTree (pChild, miRecomputeExposures, (pointer)pRegion);
-	    }
-
-	    /*
-	     * remove the successfully copied regions of the
-	     * window from its exposed region
-	     */
-
-	    if (g == pWin->bitGravity)
-		REGION_SUBTRACT(pScreen, &pWin->valdata->after.exposed,
-				     &pWin->valdata->after.exposed, gravitate[g]);
-	    if (!destClip)
-		destClip = gravitate[g];
-	    else
-	    {
-		REGION_UNION(pScreen, destClip, destClip, gravitate[g]);
-		REGION_DESTROY(pScreen, gravitate[g]);
-	    }
-	}
-
-	REGION_DESTROY(pScreen, oldRegion);
-	REGION_DESTROY(pScreen, pRegion);
-	if (destClip)
-	    REGION_DESTROY(pScreen, destClip);
-	if (anyMarked)
-	    (*pScreen->HandleExposures)(pLayerWin->parent);
-	if (anyMarked && pScreen->PostValidateTree)
-	    (*pScreen->PostValidateTree)(pLayerWin->parent, pFirstChange,
-					  VTOther);
-    }
-    if (pWin->realized)
-	WindowsRestructured ();
-}
-
-WindowPtr
-miGetLayerWindow(WindowPtr pWin)
-{
-    return pWin->firstChild;
-}
-
-/******
- *
- * miSetShape
- *    The border/window shape has changed.  Recompute winSize/borderSize
- *    and send appropriate exposure events
- */
-
-void
-miSetShape(WindowPtr pWin)
-{
-    Bool	WasViewable = (Bool)(pWin->viewable);
-    ScreenPtr 	pScreen = pWin->drawable.pScreen;
-    Bool	anyMarked = FALSE;
-    WindowPtr   pLayerWin;
-
-    if (WasViewable)
-    {
-	anyMarked = (*pScreen->MarkOverlappedWindows)(pWin, pWin,
-						      &pLayerWin);
-	if (pWin->valdata)
-	{
-	    if (HasBorder (pWin))
-	    {
-		RegionPtr	borderVisible;
-
-		borderVisible = REGION_CREATE(pScreen, NullBox, 1);
-		REGION_SUBTRACT(pScreen, borderVisible,
-				      &pWin->borderClip, &pWin->winSize);
-		pWin->valdata->before.borderVisible = borderVisible;
-	    }
-	    pWin->valdata->before.resized = TRUE;
-	}
-    }
-
-    SetWinSize (pWin);
-    SetBorderSize (pWin);
-
-    ResizeChildrenWinSize(pWin, 0, 0, 0, 0);
-
-    if (WasViewable)
-    {
-	anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pWin,
-						NULL);
-
-
-	if (anyMarked)
-	    (*pScreen->ValidateTree)(pLayerWin->parent, NullWindow, VTOther);
-    }
-
-    if (WasViewable)
-    {
-	if (anyMarked)
-	    (*pScreen->HandleExposures)(pLayerWin->parent);
-	if (anyMarked && pScreen->PostValidateTree)
-	    (*pScreen->PostValidateTree)(pLayerWin->parent, NullWindow, VTOther);
-    }
-    if (pWin->realized)
-	WindowsRestructured ();
-    CheckCursorConfinement(pWin);
-}
-
-/* Keeps the same inside(!) origin */
-
-void
-miChangeBorderWidth(WindowPtr pWin, unsigned int width)
-{
-    int oldwidth;
-    Bool anyMarked = FALSE;
-    ScreenPtr pScreen;
-    Bool WasViewable = (Bool)(pWin->viewable);
-    Bool HadBorder;
-    WindowPtr  pLayerWin;
-
-    oldwidth = wBorderWidth (pWin);
-    if (oldwidth == width)
-	return;
-    HadBorder = HasBorder(pWin);
-    pScreen = pWin->drawable.pScreen;
-    if (WasViewable && width < oldwidth)
-	anyMarked = (*pScreen->MarkOverlappedWindows)(pWin, pWin, &pLayerWin);
-
-    pWin->borderWidth = width;
-    SetBorderSize (pWin);
-
-    if (WasViewable)
-    {
-	if (width > oldwidth)
-	{
-	    anyMarked = (*pScreen->MarkOverlappedWindows)(pWin, pWin,
-							  &pLayerWin);
-	    /*
-	     * save the old border visible region to correctly compute
-	     * borderExposed.
-	     */
-	    if (pWin->valdata && HadBorder)
-	    {
-		RegionPtr   borderVisible;
-		borderVisible = REGION_CREATE(pScreen, NULL, 1);
-		REGION_SUBTRACT(pScreen, borderVisible,
-				      &pWin->borderClip, &pWin->winSize);
-		pWin->valdata->before.borderVisible = borderVisible;
-	    }
-	}
-
-	if (anyMarked)
-	{
-	    (*pScreen->ValidateTree)(pLayerWin->parent, pLayerWin, VTOther);
-	    (*pScreen->HandleExposures)(pLayerWin->parent);
-	}
-	if (anyMarked && pScreen->PostValidateTree)
-	    (*pScreen->PostValidateTree)(pLayerWin->parent, pLayerWin,
-					  VTOther);
-    }
-    if (pWin->realized)
-	WindowsRestructured ();
-}
-
-void
-miMarkUnrealizedWindow(WindowPtr pChild, WindowPtr pWin, Bool fromConfigure)
-{
-    if ((pChild != pWin) || fromConfigure)
-    {
-	REGION_EMPTY(pChild->drawable.pScreen, &pChild->clipList);
-	if (pChild->drawable.pScreen->ClipNotify)
-	    (* pChild->drawable.pScreen->ClipNotify)(pChild, 0, 0);
-	REGION_EMPTY(pChild->drawable.pScreen, &pChild->borderClip);
-    }
-}
-
-void
-miSegregateChildren(WindowPtr pWin, RegionPtr pReg, int depth)
-{
-    ScreenPtr pScreen;
-    WindowPtr pChild;
-
-    pScreen = pWin->drawable.pScreen;
-
-    for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib)
-    {
-	if (pChild->drawable.depth == depth)
-	    REGION_UNION(pScreen, pReg, pReg, &pChild->borderClip);
-
-	if (pChild->firstChild)
-	    miSegregateChildren(pChild, pReg, depth);
-    }
-}
+

+/***********************************************************

+

+Copyright 1987, 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.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+******************************************************************/

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <X11/X.h>

+#include "regionstr.h"

+#include "region.h"

+#include "mi.h"

+#include "windowstr.h"

+#include "scrnintstr.h"

+#include "pixmapstr.h"

+#include "mivalidate.h"

+

+void

+miClearToBackground(WindowPtr pWin,

+                    int x, int y, int w, int h,

+                    Bool generateExposures)

+{

+    BoxRec box;

+    RegionRec	reg;

+    RegionPtr pBSReg = NullRegion;

+    ScreenPtr	pScreen;

+    BoxPtr  extents;

+    int	    x1, y1, x2, y2;

+

+    /* compute everything using ints to avoid overflow */

+

+    x1 = pWin->drawable.x + x;

+    y1 = pWin->drawable.y + y;

+    if (w)

+        x2 = x1 + (int) w;

+    else

+        x2 = x1 + (int) pWin->drawable.width - (int) x;

+    if (h)

+        y2 = y1 + h;	

+    else

+        y2 = y1 + (int) pWin->drawable.height - (int) y;

+

+    extents = &pWin->clipList.extents;

+    

+    /* clip the resulting rectangle to the window clipList extents.  This

+     * makes sure that the result will fit in a box, given that the

+     * screen is < 32768 on a side.

+     */

+

+    if (x1 < extents->x1)

+	x1 = extents->x1;

+    if (x2 > extents->x2)

+	x2 = extents->x2;

+    if (y1 < extents->y1)

+	y1 = extents->y1;

+    if (y2 > extents->y2)

+	y2 = extents->y2;

+

+    if (x2 <= x1 || y2 <= y1)

+    {

+	x2 = x1 = 0;

+	y2 = y1 = 0;

+    }

+

+    box.x1 = x1;

+    box.x2 = x2;

+    box.y1 = y1;

+    box.y2 = y2;

+

+    pScreen = pWin->drawable.pScreen;

+    REGION_INIT(pScreen, &reg, &box, 1);

+

+    REGION_INTERSECT(pScreen, &reg, &reg, &pWin->clipList);

+    if (generateExposures)

+	(*pScreen->WindowExposures)(pWin, &reg, pBSReg);

+    else if (pWin->backgroundState != None)

+	miPaintWindow(pWin, &reg, PW_BACKGROUND);

+    REGION_UNINIT(pScreen, &reg);

+    if (pBSReg)

+	REGION_DESTROY(pScreen, pBSReg);

+}

+

+void

+miMarkWindow(WindowPtr pWin)

+{

+    ValidatePtr val;

+

+    if (pWin->valdata)

+	return;

+    val = (ValidatePtr)xnfalloc(sizeof(ValidateRec));

+    val->before.oldAbsCorner.x = pWin->drawable.x;

+    val->before.oldAbsCorner.y = pWin->drawable.y;

+    val->before.borderVisible = NullRegion;

+    val->before.resized = FALSE;

+    pWin->valdata = val;

+}

+

+Bool

+miMarkOverlappedWindows(WindowPtr pWin, WindowPtr pFirst, WindowPtr *ppLayerWin)

+{

+    BoxPtr box;

+    WindowPtr pChild, pLast;

+    Bool anyMarked = FALSE;

+    MarkWindowProcPtr MarkWindow = pWin->drawable.pScreen->MarkWindow;

+    ScreenPtr pScreen;

+

+    pScreen = pWin->drawable.pScreen;

+

+    /* single layered systems are easy */

+    if (ppLayerWin) *ppLayerWin = pWin;

+

+    if (pWin == pFirst)

+    {

+	/* Blindly mark pWin and all of its inferiors.	 This is a slight

+	 * overkill if there are mapped windows that outside pWin's border,

+	 * but it's better than wasting time on RectIn checks.

+	 */

+	pChild = pWin;

+	while (1)

+	{

+	    if (pChild->viewable)

+	    {

+		if (REGION_BROKEN (pScreen, &pChild->winSize))

+		    SetWinSize (pChild);

+		if (REGION_BROKEN (pScreen, &pChild->borderSize))

+		    SetBorderSize (pChild);

+		(* MarkWindow)(pChild);

+		if (pChild->firstChild)

+		{

+		    pChild = pChild->firstChild;

+		    continue;

+		}

+	    }

+	    while (!pChild->nextSib && (pChild != pWin))

+		pChild = pChild->parent;

+	    if (pChild == pWin)

+		break;

+	    pChild = pChild->nextSib;

+	}

+	anyMarked = TRUE;

+	pFirst = pFirst->nextSib;

+    }

+    if ( (pChild = pFirst) )

+    {

+	box = REGION_EXTENTS(pChild->drawable.pScreen, &pWin->borderSize);

+	pLast = pChild->parent->lastChild;

+	while (1)

+	{

+	    if (pChild->viewable)

+	    {

+		if (REGION_BROKEN (pScreen, &pChild->winSize))

+		    SetWinSize (pChild);

+		if (REGION_BROKEN (pScreen, &pChild->borderSize))

+		    SetBorderSize (pChild);

+		if (RECT_IN_REGION(pScreen, &pChild->borderSize, box))

+		{

+		    (* MarkWindow)(pChild);

+		    anyMarked = TRUE;

+		    if (pChild->firstChild)

+		    {

+			pChild = pChild->firstChild;

+			continue;

+		    }

+		}

+	    }

+	    while (!pChild->nextSib && (pChild != pLast))

+		pChild = pChild->parent;

+	    if (pChild == pLast)

+		break;

+	    pChild = pChild->nextSib;

+	}

+    }

+    if (anyMarked)

+	(* MarkWindow)(pWin->parent);

+    return anyMarked;

+}

+

+/*****

+ *  miHandleValidateExposures(pWin)

+ *    starting at pWin, draw background in any windows that have exposure

+ *    regions, translate the regions, restore any backing store,

+ *    and then send any regions still exposed to the client

+ *****/

+void

+miHandleValidateExposures(WindowPtr pWin)

+{

+    WindowPtr pChild;

+    ValidatePtr val;

+    ScreenPtr pScreen;

+    WindowExposuresProcPtr WindowExposures;

+

+    pScreen = pWin->drawable.pScreen;

+

+    pChild = pWin;

+    WindowExposures = pChild->drawable.pScreen->WindowExposures;

+    while (1)

+    {

+	if ( (val = pChild->valdata) )

+	{

+	    if (REGION_NOTEMPTY(pScreen, &val->after.borderExposed))

+		miPaintWindow(pChild, &val->after.borderExposed, PW_BORDER);

+	    REGION_UNINIT(pScreen, &val->after.borderExposed);

+	    (*WindowExposures)(pChild, &val->after.exposed, NullRegion);

+	    REGION_UNINIT(pScreen, &val->after.exposed);

+	    free(val);

+	    pChild->valdata = NULL;

+	    if (pChild->firstChild)

+	    {

+		pChild = pChild->firstChild;

+		continue;

+	    }

+	}

+	while (!pChild->nextSib && (pChild != pWin))

+	    pChild = pChild->parent;

+	if (pChild == pWin)

+	    break;

+	pChild = pChild->nextSib;

+    }

+}

+

+void

+miMoveWindow(WindowPtr pWin, int x, int y, WindowPtr pNextSib, VTKind kind)

+{

+    WindowPtr pParent;

+    Bool WasViewable = (Bool)(pWin->viewable);

+    short bw;

+    RegionPtr oldRegion = NULL;

+    DDXPointRec oldpt;

+    Bool anyMarked = FALSE;

+    ScreenPtr pScreen;

+    WindowPtr windowToValidate;

+    WindowPtr pLayerWin;

+

+    /* if this is a root window, can't be moved */

+    if (!(pParent = pWin->parent))

+       return ;

+    pScreen = pWin->drawable.pScreen;

+    bw = wBorderWidth (pWin);

+

+    oldpt.x = pWin->drawable.x;

+    oldpt.y = pWin->drawable.y;

+    if (WasViewable)

+    {

+	oldRegion = REGION_CREATE(pScreen, NullBox, 1);

+	REGION_COPY(pScreen, oldRegion, &pWin->borderClip);

+	anyMarked = (*pScreen->MarkOverlappedWindows)(pWin, pWin, &pLayerWin);

+    }

+    pWin->origin.x = x + (int)bw;

+    pWin->origin.y = y + (int)bw;

+    x = pWin->drawable.x = pParent->drawable.x + x + (int)bw;

+    y = pWin->drawable.y = pParent->drawable.y + y + (int)bw;

+

+    SetWinSize (pWin);

+    SetBorderSize (pWin);

+

+    (*pScreen->PositionWindow)(pWin, x, y);

+

+    windowToValidate = MoveWindowInStack(pWin, pNextSib);

+

+    ResizeChildrenWinSize(pWin, x - oldpt.x, y - oldpt.y, 0, 0);

+

+    if (WasViewable)

+    {

+	if (pLayerWin == pWin)

+	    anyMarked |= (*pScreen->MarkOverlappedWindows)

+				(pWin, windowToValidate, NULL);

+	else

+	    anyMarked |= (*pScreen->MarkOverlappedWindows)

+				(pWin, pLayerWin, NULL);

+

+

+	if (anyMarked)

+	{

+	    (*pScreen->ValidateTree)(pLayerWin->parent, NullWindow, kind);

+	    (* pWin->drawable.pScreen->CopyWindow)(pWin, oldpt, oldRegion);

+	    REGION_DESTROY(pScreen, oldRegion);

+	    /* XXX need to retile border if ParentRelative origin */

+	    (*pScreen->HandleExposures)(pLayerWin->parent);

+	}

+	if (anyMarked && pScreen->PostValidateTree)

+	    (*pScreen->PostValidateTree)(pLayerWin->parent, NullWindow, kind);

+    }

+    if (pWin->realized)

+	WindowsRestructured ();

+}

+

+

+/*

+ * pValid is a region of the screen which has been

+ * successfully copied -- recomputed exposed regions for affected windows

+ */

+

+static int

+miRecomputeExposures (

+    WindowPtr	pWin,

+    pointer		value) /* must conform to VisitWindowProcPtr */

+{

+    ScreenPtr	pScreen;

+    RegionPtr	pValid = (RegionPtr)value;

+

+    if (pWin->valdata)

+    {

+#ifdef COMPOSITE

+	/*

+	 * Redirected windows are not affected by parent window

+	 * gravity manipulations, so don't recompute their

+	 * exposed areas here.

+	 */

+	if (pWin->redirectDraw != RedirectDrawNone)

+	    return WT_DONTWALKCHILDREN;

+#endif

+	pScreen = pWin->drawable.pScreen;

+	/*

+	 * compute exposed regions of this window

+	 */

+	REGION_SUBTRACT(pScreen, &pWin->valdata->after.exposed,

+			&pWin->clipList, pValid);

+	/*

+	 * compute exposed regions of the border

+	 */

+	REGION_SUBTRACT(pScreen, &pWin->valdata->after.borderExposed,

+			     &pWin->borderClip, &pWin->winSize);

+	REGION_SUBTRACT(pScreen, &pWin->valdata->after.borderExposed,

+			     &pWin->valdata->after.borderExposed, pValid);

+	return WT_WALKCHILDREN;

+    }

+    return WT_NOMATCH;

+}

+

+void

+miSlideAndSizeWindow(WindowPtr pWin,

+                     int x, int y,

+                     unsigned int w, unsigned int h,

+                     WindowPtr pSib)

+{

+    WindowPtr pParent;

+    Bool WasViewable = (Bool)(pWin->viewable);

+    unsigned short width = pWin->drawable.width,

+		   height = pWin->drawable.height;

+    short oldx = pWin->drawable.x,

+	  oldy = pWin->drawable.y;

+    int bw = wBorderWidth (pWin);

+    short dw, dh;

+    DDXPointRec oldpt;

+    RegionPtr oldRegion = NULL;

+    Bool anyMarked = FALSE;

+    ScreenPtr pScreen;

+    WindowPtr pFirstChange;

+    WindowPtr pChild;

+    RegionPtr	gravitate[StaticGravity + 1];

+    unsigned g;

+    int		nx, ny;		/* destination x,y */

+    int		newx, newy;	/* new inner window position */

+    RegionPtr	pRegion = NULL;

+    RegionPtr	destClip;	/* portions of destination already written */

+    RegionPtr	oldWinClip = NULL;	/* old clip list for window */

+    RegionPtr	borderVisible = NullRegion; /* visible area of the border */

+    Bool	shrunk = FALSE; /* shrunk in an inner dimension */

+    Bool	moved = FALSE;	/* window position changed */

+    WindowPtr  pLayerWin;

+

+    /* if this is a root window, can't be resized */

+    if (!(pParent = pWin->parent))

+	return ;

+

+    pScreen = pWin->drawable.pScreen;

+    newx = pParent->drawable.x + x + bw;

+    newy = pParent->drawable.y + y + bw;

+    if (WasViewable)

+    {

+	anyMarked = FALSE;

+	/*

+	 * save the visible region of the window

+	 */

+	oldRegion = REGION_CREATE(pScreen, NullBox, 1);

+	REGION_COPY(pScreen, oldRegion, &pWin->winSize);

+

+	/*

+	 * categorize child windows into regions to be moved

+	 */

+	for (g = 0; g <= StaticGravity; g++)

+	    gravitate[g] = (RegionPtr) NULL;

+	for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib)

+	{

+	    g = pChild->winGravity;

+	    if (g != UnmapGravity)

+	    {

+		if (!gravitate[g])

+		    gravitate[g] = REGION_CREATE(pScreen, NullBox, 1);

+		REGION_UNION(pScreen, gravitate[g],

+				   gravitate[g], &pChild->borderClip);

+	    }

+	    else

+	    {

+		UnmapWindow(pChild, TRUE);

+		anyMarked = TRUE;

+	    }

+	}

+	anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pWin, 

+						       &pLayerWin);

+

+	oldWinClip = NULL;

+	if (pWin->bitGravity != ForgetGravity)

+	{

+	    oldWinClip = REGION_CREATE(pScreen, NullBox, 1);

+	    REGION_COPY(pScreen, oldWinClip, &pWin->clipList);

+	}

+	/*

+	 * if the window is changing size, borderExposed

+	 * can't be computed correctly without some help.

+	 */

+	if (pWin->drawable.height > h || pWin->drawable.width > w)

+	    shrunk = TRUE;

+

+	if (newx != oldx || newy != oldy)

+	    moved = TRUE;

+

+	if ((pWin->drawable.height != h || pWin->drawable.width != w) &&

+	    HasBorder (pWin))

+	{

+	    borderVisible = REGION_CREATE(pScreen, NullBox, 1);

+	    /* for tiled borders, we punt and draw the whole thing */

+	    if (pWin->borderIsPixel || !moved)

+	    {

+		if (shrunk || moved)

+		    REGION_SUBTRACT(pScreen, borderVisible,

+					  &pWin->borderClip,

+					  &pWin->winSize);

+		else

+		    REGION_COPY(pScreen, borderVisible,

+					    &pWin->borderClip);

+	    }

+	}

+    }

+    pWin->origin.x = x + bw;

+    pWin->origin.y = y + bw;

+    pWin->drawable.height = h;

+    pWin->drawable.width = w;

+

+    x = pWin->drawable.x = newx;

+    y = pWin->drawable.y = newy;

+

+    SetWinSize (pWin);

+    SetBorderSize (pWin);

+

+    dw = (int)w - (int)width;

+    dh = (int)h - (int)height;

+    ResizeChildrenWinSize(pWin, x - oldx, y - oldy, dw, dh);

+

+    /* let the hardware adjust background and border pixmaps, if any */

+    (*pScreen->PositionWindow)(pWin, x, y);

+

+    pFirstChange = MoveWindowInStack(pWin, pSib);

+

+    if (WasViewable)

+    {

+	pRegion = REGION_CREATE(pScreen, NullBox, 1);

+

+	if (pLayerWin == pWin)

+	    anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pFirstChange,

+						NULL);

+	else

+	    anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pLayerWin,

+						NULL);

+

+	if (pWin->valdata)

+	{

+	    pWin->valdata->before.resized = TRUE;

+	    pWin->valdata->before.borderVisible = borderVisible;

+	}

+

+

+	if (anyMarked)

+	    (*pScreen->ValidateTree)(pLayerWin->parent, pFirstChange, VTOther);

+	/*

+	 * the entire window is trashed unless bitGravity

+	 * recovers portions of it

+	 */

+	REGION_COPY(pScreen, &pWin->valdata->after.exposed, &pWin->clipList);

+    }

+

+    GravityTranslate (x, y, oldx, oldy, dw, dh, pWin->bitGravity, &nx, &ny);

+

+    if (WasViewable)

+    {

+	/* avoid the border */

+	if (HasBorder (pWin))

+	{

+	    int	offx, offy, dx, dy;

+

+	    /* kruft to avoid double translates for each gravity */

+	    offx = 0;

+	    offy = 0;

+	    for (g = 0; g <= StaticGravity; g++)

+	    {

+		if (!gravitate[g])

+		    continue;

+

+		/* align winSize to gravitate[g].

+		 * winSize is in new coordinates,

+		 * gravitate[g] is still in old coordinates */

+		GravityTranslate (x, y, oldx, oldy, dw, dh, g, &nx, &ny);

+		

+		dx = (oldx - nx) - offx;

+		dy = (oldy - ny) - offy;

+		if (dx || dy)

+		{

+		    REGION_TRANSLATE(pScreen, &pWin->winSize, dx, dy);

+		    offx += dx;

+		    offy += dy;

+		}

+		REGION_INTERSECT(pScreen, gravitate[g], gravitate[g],

+				 &pWin->winSize);

+	    }

+	    /* get winSize back where it belongs */

+	    if (offx || offy)

+		REGION_TRANSLATE(pScreen, &pWin->winSize, -offx, -offy);

+	}

+	/*

+	 * add screen bits to the appropriate bucket

+	 */

+

+	if (oldWinClip)

+	{

+	    /*

+	     * clip to new clipList

+	     */

+	    REGION_COPY(pScreen, pRegion, oldWinClip);

+	    REGION_TRANSLATE(pScreen, pRegion, nx - oldx, ny - oldy);

+	    REGION_INTERSECT(pScreen, oldWinClip, pRegion, &pWin->clipList);

+	    /*

+	     * don't step on any gravity bits which will be copied after this

+	     * region.	Note -- this assumes that the regions will be copied

+	     * in gravity order.

+	     */

+	    for (g = pWin->bitGravity + 1; g <= StaticGravity; g++)

+	    {

+		if (gravitate[g])

+		    REGION_SUBTRACT(pScreen, oldWinClip, oldWinClip,

+					gravitate[g]);

+	    }

+	    REGION_TRANSLATE(pScreen, oldWinClip, oldx - nx, oldy - ny);

+	    g = pWin->bitGravity;

+	    if (!gravitate[g])

+		gravitate[g] = oldWinClip;

+	    else

+	    {

+		REGION_UNION(pScreen, gravitate[g], gravitate[g], oldWinClip);

+		REGION_DESTROY(pScreen, oldWinClip);

+	    }

+	}

+

+	/*

+	 * move the bits on the screen

+	 */

+

+	destClip = NULL;

+

+	for (g = 0; g <= StaticGravity; g++)

+	{

+	    if (!gravitate[g])

+		continue;

+

+	    GravityTranslate (x, y, oldx, oldy, dw, dh, g, &nx, &ny);

+

+	    oldpt.x = oldx + (x - nx);

+	    oldpt.y = oldy + (y - ny);

+

+	    /* Note that gravitate[g] is *translated* by CopyWindow */

+

+	    /* only copy the remaining useful bits */

+

+	    REGION_INTERSECT(pScreen, gravitate[g], gravitate[g], oldRegion);

+

+	    /* clip to not overwrite already copied areas */

+

+	    if (destClip) {

+		REGION_TRANSLATE(pScreen, destClip, oldpt.x - x, oldpt.y - y);

+		REGION_SUBTRACT(pScreen, gravitate[g], gravitate[g], destClip);

+		REGION_TRANSLATE(pScreen, destClip, x - oldpt.x, y - oldpt.y);

+	    }

+

+	    /* and move those bits */

+

+	    if (oldpt.x != x || oldpt.y != y

+#ifdef COMPOSITE

+		|| pWin->redirectDraw

+#endif

+		)

+	    {

+		(*pWin->drawable.pScreen->CopyWindow)(pWin, oldpt, gravitate[g]);

+	    }

+

+	    /* remove any overwritten bits from the remaining useful bits */

+

+	    REGION_SUBTRACT(pScreen, oldRegion, oldRegion, gravitate[g]);

+

+	    /*

+	     * recompute exposed regions of child windows

+	     */

+	

+	    for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib)

+	    {

+		if (pChild->winGravity != g)

+		    continue;

+		REGION_INTERSECT(pScreen, pRegion,

+				       &pChild->borderClip, gravitate[g]);

+		TraverseTree (pChild, miRecomputeExposures, (pointer)pRegion);

+	    }

+

+	    /*

+	     * remove the successfully copied regions of the

+	     * window from its exposed region

+	     */

+

+	    if (g == pWin->bitGravity)

+		REGION_SUBTRACT(pScreen, &pWin->valdata->after.exposed,

+				     &pWin->valdata->after.exposed, gravitate[g]);

+	    if (!destClip)

+		destClip = gravitate[g];

+	    else

+	    {

+		REGION_UNION(pScreen, destClip, destClip, gravitate[g]);

+		REGION_DESTROY(pScreen, gravitate[g]);

+	    }

+	}

+

+	REGION_DESTROY(pScreen, oldRegion);

+	REGION_DESTROY(pScreen, pRegion);

+	if (destClip)

+	    REGION_DESTROY(pScreen, destClip);

+	if (anyMarked)

+	    (*pScreen->HandleExposures)(pLayerWin->parent);

+	if (anyMarked && pScreen->PostValidateTree)

+	    (*pScreen->PostValidateTree)(pLayerWin->parent, pFirstChange,

+					  VTOther);

+    }

+    if (pWin->realized)

+	WindowsRestructured ();

+}

+

+WindowPtr

+miGetLayerWindow(WindowPtr pWin)

+{

+    return pWin->firstChild;

+}

+

+/******

+ *

+ * miSetShape

+ *    The border/window shape has changed.  Recompute winSize/borderSize

+ *    and send appropriate exposure events

+ */

+

+void

+miSetShape(WindowPtr pWin)

+{

+    Bool	WasViewable = (Bool)(pWin->viewable);

+    ScreenPtr 	pScreen = pWin->drawable.pScreen;

+    Bool	anyMarked = FALSE;

+    WindowPtr   pLayerWin;

+

+    if (WasViewable)

+    {

+	anyMarked = (*pScreen->MarkOverlappedWindows)(pWin, pWin,

+						      &pLayerWin);

+	if (pWin->valdata)

+	{

+	    if (HasBorder (pWin))

+	    {

+		RegionPtr	borderVisible;

+

+		borderVisible = REGION_CREATE(pScreen, NullBox, 1);

+		REGION_SUBTRACT(pScreen, borderVisible,

+				      &pWin->borderClip, &pWin->winSize);

+		pWin->valdata->before.borderVisible = borderVisible;

+	    }

+	    pWin->valdata->before.resized = TRUE;

+	}

+    }

+

+    SetWinSize (pWin);

+    SetBorderSize (pWin);

+

+    ResizeChildrenWinSize(pWin, 0, 0, 0, 0);

+

+    if (WasViewable)

+    {

+	anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pWin,

+						NULL);

+

+

+	if (anyMarked)

+	    (*pScreen->ValidateTree)(pLayerWin->parent, NullWindow, VTOther);

+    }

+

+    if (WasViewable)

+    {

+	if (anyMarked)

+	    (*pScreen->HandleExposures)(pLayerWin->parent);

+	if (anyMarked && pScreen->PostValidateTree)

+	    (*pScreen->PostValidateTree)(pLayerWin->parent, NullWindow, VTOther);

+    }

+    if (pWin->realized)

+	WindowsRestructured ();

+    CheckCursorConfinement(pWin);

+}

+

+/* Keeps the same inside(!) origin */

+

+void

+miChangeBorderWidth(WindowPtr pWin, unsigned int width)

+{

+    int oldwidth;

+    Bool anyMarked = FALSE;

+    ScreenPtr pScreen;

+    Bool WasViewable = (Bool)(pWin->viewable);

+    Bool HadBorder;

+    WindowPtr  pLayerWin;

+

+    oldwidth = wBorderWidth (pWin);

+    if (oldwidth == width)

+	return;

+    HadBorder = HasBorder(pWin);

+    pScreen = pWin->drawable.pScreen;

+    if (WasViewable && width < oldwidth)

+	anyMarked = (*pScreen->MarkOverlappedWindows)(pWin, pWin, &pLayerWin);

+

+    pWin->borderWidth = width;

+    SetBorderSize (pWin);

+

+    if (WasViewable)

+    {

+	if (width > oldwidth)

+	{

+	    anyMarked = (*pScreen->MarkOverlappedWindows)(pWin, pWin,

+							  &pLayerWin);

+	    /*

+	     * save the old border visible region to correctly compute

+	     * borderExposed.

+	     */

+	    if (pWin->valdata && HadBorder)

+	    {

+		RegionPtr   borderVisible;

+		borderVisible = REGION_CREATE(pScreen, NULL, 1);

+		REGION_SUBTRACT(pScreen, borderVisible,

+				      &pWin->borderClip, &pWin->winSize);

+		pWin->valdata->before.borderVisible = borderVisible;

+	    }

+	}

+

+	if (anyMarked)

+	{

+	    (*pScreen->ValidateTree)(pLayerWin->parent, pLayerWin, VTOther);

+	    (*pScreen->HandleExposures)(pLayerWin->parent);

+	}

+	if (anyMarked && pScreen->PostValidateTree)

+	    (*pScreen->PostValidateTree)(pLayerWin->parent, pLayerWin,

+					  VTOther);

+    }

+    if (pWin->realized)

+	WindowsRestructured ();

+}

+

+void

+miMarkUnrealizedWindow(WindowPtr pChild, WindowPtr pWin, Bool fromConfigure)

+{

+    if ((pChild != pWin) || fromConfigure)

+    {

+	REGION_EMPTY(pChild->drawable.pScreen, &pChild->clipList);

+	if (pChild->drawable.pScreen->ClipNotify)

+	    (* pChild->drawable.pScreen->ClipNotify)(pChild, 0, 0);

+	REGION_EMPTY(pChild->drawable.pScreen, &pChild->borderClip);

+    }

+}

+

+void

+miSegregateChildren(WindowPtr pWin, RegionPtr pReg, int depth)

+{

+    ScreenPtr pScreen;

+    WindowPtr pChild;

+

+    pScreen = pWin->drawable.pScreen;

+

+    for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib)

+    {

+	if (pChild->drawable.depth == depth)

+	    REGION_UNION(pScreen, pReg, pReg, &pChild->borderClip);

+

+	if (pChild->firstChild)

+	    miSegregateChildren(pChild, pReg, depth);

+    }

+}

diff --git a/xorg-server/mi/mizerarc.c b/xorg-server/mi/mizerarc.c
index ad84c0123..713d0bd04 100644
--- a/xorg-server/mi/mizerarc.c
+++ b/xorg-server/mi/mizerarc.c
@@ -1,844 +1,848 @@
-/************************************************************
-
-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.
-
-Author:  Bob Scheifler, MIT X Consortium
-
-********************************************************/
-
-
-/* Derived from:
- * "Algorithm for drawing ellipses or hyperbolae with a digital plotter"
- * by M. L. V. Pitteway
- * The Computer Journal, November 1967, Volume 10, Number 3, pp. 282-289
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <math.h>
-#include <X11/X.h>
-#include <X11/Xprotostr.h>
-#include "regionstr.h"
-#include "gcstruct.h"
-#include "pixmapstr.h"
-#include "mi.h"
-#include "mizerarc.h"
-
-#define FULLCIRCLE (360 * 64)
-#define OCTANT (45 * 64)
-#define QUADRANT (90 * 64)
-#define HALFCIRCLE (180 * 64)
-#define QUADRANT3 (270 * 64)
-
-#ifndef M_PI
-#define M_PI	3.14159265358979323846
-#endif
-
-#define Dsin(d)	((d) == 0 ? 0.0 : ((d) == QUADRANT ? 1.0 : \
-		 ((d) == HALFCIRCLE ? 0.0 : \
-		 ((d) == QUADRANT3 ? -1.0 : sin((double)d*(M_PI/11520.0))))))
-
-#define Dcos(d)	((d) == 0 ? 1.0 : ((d) == QUADRANT ? 0.0 : \
-		 ((d) == HALFCIRCLE ? -1.0 : \
-		 ((d) == QUADRANT3 ? 0.0 : cos((double)d*(M_PI/11520.0))))))
-
-#define EPSILON45 64
-
-typedef struct {
-    int skipStart;
-    int haveStart;
-    DDXPointRec startPt;
-    int haveLast;
-    int skipLast;
-    DDXPointRec endPt;
-    int dashIndex;
-    int dashOffset;
-    int dashIndexInit;
-    int dashOffsetInit;
-} DashInfo;
-
-static miZeroArcPtRec oob = {65536, 65536, 0};
-
-/*
- * (x - l)^2 / (W/2)^2  + (y + H/2)^2 / (H/2)^2 = 1
- *
- * where l is either 0 or .5
- *
- * alpha = 4(W^2)
- * beta = 4(H^2)
- * gamma = 0
- * u = 2(W^2)H
- * v = 4(H^2)l
- * k = -4(H^2)(l^2)
- *
- */
-
-Bool
-miZeroArcSetup(xArc *arc, miZeroArcRec *info, Bool ok360)
-{
-    int l;
-    int angle1, angle2;
-    int startseg, endseg;
-    int startAngle, endAngle;
-    int i, overlap;
-    miZeroArcPtRec start, end;
-
-    l = arc->width & 1;
-    if (arc->width == arc->height)
-    {
-	info->alpha = 4;
-	info->beta = 4;
-	info->k1 = -8;
-	info->k3 = -16;
-	info->b = 12;
-	info->a = (arc->width << 2) - 12;
-	info->d = 17 - (arc->width << 1);
-	if (l)
-	{
-	    info->b -= 4;
-	    info->a += 4;
-	    info->d -= 7;
-	}
-    }
-    else if (!arc->width || !arc->height)
-    {
-	info->alpha = 0;
-	info->beta = 0;
-	info->k1 = 0;
-	info->k3 = 0;
-	info->a = -(int)arc->height;
-	info->b = 0;
-	info->d = -1;
-    }
-    else
-    {
-	/* initial conditions */
-	info->alpha = (arc->width * arc->width) << 2;
-	info->beta = (arc->height * arc->height) << 2;
-	info->k1 = info->beta << 1;
-	info->k3 = info->k1 + (info->alpha << 1);
-	info->b = l ? 0 : -info->beta;
-	info->a = info->alpha * arc->height;
-	info->d = info->b - (info->a >> 1) - (info->alpha >> 2);
-	if (l)
-	    info->d -= info->beta >> 2;
-	info->a -= info->b;
-	/* take first step, d < 0 always */
-	info->b -= info->k1;
-	info->a += info->k1;
-	info->d += info->b;
-	/* octant change, b < 0 always */
-	info->k1 = -info->k1;
-	info->k3 = -info->k3;
-	info->b = -info->b;
-	info->d = info->b - info->a - info->d;
-	info->a = info->a - (info->b << 1);
-    }
-    info->dx = 1;
-    info->dy = 0;
-    info->w = (arc->width + 1) >> 1;
-    info->h = arc->height >> 1;
-    info->xorg = arc->x + (arc->width >> 1);
-    info->yorg = arc->y;
-    info->xorgo = info->xorg + l;
-    info->yorgo = info->yorg + arc->height;
-    if (!arc->width)
-    {
-	if (!arc->height)
-	{
-	    info->x = 0;
-	    info->y = 0;
-	    info->initialMask = 0;
-	    info->startAngle = 0;
-	    info->endAngle = 0;
-	    info->start = oob;
-	    info->end = oob;
-	    return FALSE;
-	}
-	info->x = 0;
-	info->y = 1;
-    }
-    else
-    {
-	info->x = 1;
-	info->y = 0;
-    }
-    angle1 = arc->angle1;
-    angle2 = arc->angle2;
-    if ((angle1 == 0) && (angle2 >= FULLCIRCLE))
-    {
-	startAngle = 0;
-	endAngle = 0;
-    }
-    else
-    {
-	if (angle2 > FULLCIRCLE)
-	    angle2 = FULLCIRCLE;
-	else if (angle2 < -FULLCIRCLE)
-	    angle2 = -FULLCIRCLE;
-	if (angle2 < 0)
-	{
-	    startAngle = angle1 + angle2;
-	    endAngle = angle1;
-	}
-	else
-	{
-	    startAngle = angle1;
-	    endAngle = angle1 + angle2;
-	}
-	if (startAngle < 0)
-	    startAngle = FULLCIRCLE - (-startAngle) % FULLCIRCLE;
-	if (startAngle >= FULLCIRCLE)
-	    startAngle = startAngle % FULLCIRCLE;
-	if (endAngle < 0)
-	    endAngle = FULLCIRCLE - (-endAngle) % FULLCIRCLE;
-	if (endAngle >= FULLCIRCLE)
-	    endAngle = endAngle % FULLCIRCLE;
-    }
-    info->startAngle = startAngle;
-    info->endAngle = endAngle;
-    if (ok360 && (startAngle == endAngle) && arc->angle2 &&
-	arc->width && arc->height)
-    {
-	info->initialMask = 0xf;
-	info->start = oob;
-	info->end = oob;
-	return TRUE;
-    }
-    startseg = startAngle / OCTANT;
-    if (!arc->height || (((startseg + 1) & 2) && arc->width))
-    {
-	start.x = Dcos(startAngle) * ((arc->width + 1) / 2.0);
-	if (start.x < 0)
-	    start.x = -start.x;
-	start.y = -1;
-    }
-    else
-    {
-	start.y = Dsin(startAngle) * (arc->height / 2.0);
-	if (start.y < 0)
-	    start.y = -start.y;
-	start.y = info->h - start.y;
-	start.x = 65536;
-    }
-    endseg = endAngle / OCTANT;
-    if (!arc->height || (((endseg + 1) & 2) && arc->width))
-    {
-	end.x = Dcos(endAngle) * ((arc->width + 1) / 2.0);
-	if (end.x < 0)
-	    end.x = -end.x;
-	end.y = -1;
-    }
-    else
-    {
-	end.y = Dsin(endAngle) * (arc->height / 2.0);
-	if (end.y < 0)
-	    end.y = -end.y;
-	end.y = info->h - end.y;
-	end.x = 65536;
-    }
-    info->firstx = start.x;
-    info->firsty = start.y;
-    info->initialMask = 0;
-    overlap = arc->angle2 && (endAngle <= startAngle);
-    for (i = 0; i < 4; i++)
-    {
-	if (overlap ?
-	    ((i * QUADRANT <= endAngle) || ((i + 1) * QUADRANT > startAngle)) :
-	    ((i * QUADRANT <= endAngle) && ((i + 1) * QUADRANT > startAngle)))
-	    info->initialMask |= (1 << i);
-    }
-    start.mask = info->initialMask;
-    end.mask = info->initialMask;
-    startseg >>= 1;
-    endseg >>= 1;
-    overlap = overlap && (endseg == startseg);
-    if (start.x != end.x || start.y != end.y || !overlap)
-    {
-	if (startseg & 1)
-	{
-	    if (!overlap)
-		info->initialMask &= ~(1 << startseg);
-	    if (start.x > end.x || start.y > end.y)
-		end.mask &= ~(1 << startseg);
-	}
-	else
-	{
-	    start.mask &= ~(1 << startseg);
-	    if (((start.x < end.x || start.y < end.y) ||
-		 (start.x == end.x && start.y == end.y && (endseg & 1))) &&
-		!overlap)
-		end.mask &= ~(1 << startseg);
-	}
-	if (endseg & 1)
-	{
-	    end.mask &= ~(1 << endseg);
-	    if (((start.x > end.x || start.y > end.y) ||
-		 (start.x == end.x && start.y == end.y && !(startseg & 1))) &&
-		!overlap)
-		start.mask &= ~(1 << endseg);
-	}
-	else
-	{
-	    if (!overlap)
-		info->initialMask &= ~(1 << endseg);
-	    if (start.x < end.x || start.y < end.y)
-		start.mask &= ~(1 << endseg);
-	}
-    }
-    /* take care of case when start and stop are both near 45 */
-    /* handle here rather than adding extra code to pixelization loops */
-    if (startAngle &&
-	((start.y < 0 && end.y >= 0) || (start.y >= 0 && end.y < 0)))
-    {
-	i = (startAngle + OCTANT) % OCTANT;
-	if (i < EPSILON45 || i > OCTANT - EPSILON45)
-	{
-	    i = (endAngle + OCTANT) % OCTANT;
-	    if (i < EPSILON45 || i > OCTANT - EPSILON45)
-	    {
-		if (start.y < 0)
-		{
-		    i = Dsin(startAngle) * (arc->height / 2.0);
-		    if (i < 0)
-			i = -i;
-		    if (info->h - i == end.y)
-			start.mask = end.mask;
-		}
-		else
-		{
-		    i = Dsin(endAngle) * (arc->height / 2.0);
-		    if (i < 0)
-			i = -i;
-		    if (info->h - i == start.y)
-			end.mask = start.mask;
-		}
-	    }
-	}
-    }
-    if (startseg & 1)
-    {
-	info->start = start;
-	info->end = oob;
-    }
-    else
-    {
-	info->end = start;
-	info->start = oob;
-    }
-    if (endseg & 1)
-    {
-	info->altend = end;
-	if (info->altend.x < info->end.x || info->altend.y < info->end.y)
-	{
-	    miZeroArcPtRec tmp;
-	    tmp = info->altend;
-	    info->altend = info->end;
-	    info->end = tmp;
-	}
-	info->altstart = oob;
-    }
-    else
-    {
-	info->altstart = end;
-	if (info->altstart.x < info->start.x ||
-	    info->altstart.y < info->start.y)
-	{
-	    miZeroArcPtRec tmp;
-	    tmp = info->altstart;
-	    info->altstart = info->start;
-	    info->start = tmp;
-	}
-	info->altend = oob;
-    }
-    if (!info->start.x || !info->start.y)
-    {
-	info->initialMask = info->start.mask;
-	info->start = info->altstart;
-    }
-    if (!arc->width && (arc->height == 1))
-    {
-	/* kludge! */
-	info->initialMask |= info->end.mask;
-	info->initialMask |= info->initialMask << 1;
-	info->end.x = 0;
-	info->end.mask = 0;
-    }
-    return FALSE;
-}
-
-#define Pixelate(xval,yval) \
-    { \
-	pts->x = xval; \
-	pts->y = yval; \
-	pts++; \
-    }
-
-#define DoPix(idx,xval,yval) if (mask & (1 << idx)) Pixelate(xval, yval);
-
-static DDXPointPtr
-miZeroArcPts(xArc *arc, DDXPointPtr pts)
-{
-    miZeroArcRec info;
-    int x, y, a, b, d, mask;
-    int k1, k3, dx, dy;
-    Bool do360;
-
-    do360 = miZeroArcSetup(arc, &info, TRUE);
-    MIARCSETUP();
-    mask = info.initialMask;
-    if (!(arc->width & 1))
-    {
-	DoPix(1, info.xorgo, info.yorg);
-	DoPix(3, info.xorgo, info.yorgo);
-    }
-    if (!info.end.x || !info.end.y)
-    {
-	mask = info.end.mask;
-	info.end = info.altend;
-    }
-    if (do360 && (arc->width == arc->height) && !(arc->width & 1))
-    {
-	int yorgh = info.yorg + info.h;
-	int xorghp = info.xorg + info.h;
-	int xorghn = info.xorg - info.h;
-
-	while (1)
-	{
-	    Pixelate(info.xorg + x, info.yorg + y);
-	    Pixelate(info.xorg - x, info.yorg + y);
-	    Pixelate(info.xorg - x, info.yorgo - y);
-	    Pixelate(info.xorg + x, info.yorgo - y);
-	    if (a < 0)
-		break;
-	    Pixelate(xorghp - y, yorgh - x);
-	    Pixelate(xorghn + y, yorgh - x);
-	    Pixelate(xorghn + y, yorgh + x);
-	    Pixelate(xorghp - y, yorgh + x);
-	    MIARCCIRCLESTEP(;);
-	}
-	if (x > 1 && pts[-1].x == pts[-5].x && pts[-1].y == pts[-5].y)
-	    pts -= 4;
-	x = info.w;
-	y = info.h;
-    }
-    else if (do360)
-    {
-	while (y < info.h || x < info.w)
-	{
-	    MIARCOCTANTSHIFT(;);
-	    Pixelate(info.xorg + x, info.yorg + y);
-	    Pixelate(info.xorgo - x, info.yorg + y);
-	    Pixelate(info.xorgo - x, info.yorgo - y);
-	    Pixelate(info.xorg + x, info.yorgo - y);
-	    MIARCSTEP(;,;);
-	}
-    }
-    else
-    {
-	while (y < info.h || x < info.w)
-	{
-	    MIARCOCTANTSHIFT(;);
-	    if ((x == info.start.x) || (y == info.start.y))
-	    {
-		mask = info.start.mask;
-		info.start = info.altstart;
-	    }
-	    DoPix(0, info.xorg + x, info.yorg + y);
-	    DoPix(1, info.xorgo - x, info.yorg + y);
-	    DoPix(2, info.xorgo - x, info.yorgo - y);
-	    DoPix(3, info.xorg + x, info.yorgo - y);
-	    if ((x == info.end.x) || (y == info.end.y))
-	    {
-		mask = info.end.mask;
-		info.end = info.altend;
-	    }
-	    MIARCSTEP(;,;);
-	}
-    }
-    if ((x == info.start.x) || (y == info.start.y))
-	mask = info.start.mask;
-    DoPix(0, info.xorg + x, info.yorg + y);
-    DoPix(2, info.xorgo - x, info.yorgo - y);
-    if (arc->height & 1)
-    {
-	DoPix(1, info.xorgo - x, info.yorg + y);
-	DoPix(3, info.xorg + x, info.yorgo - y);
-    }
-    return pts;
-}
-
-#undef DoPix
-#define DoPix(idx,xval,yval) \
-    if (mask & (1 << idx)) \
-    { \
-	arcPts[idx]->x = xval; \
-	arcPts[idx]->y = yval; \
-	arcPts[idx]++; \
-    }
-
-static void
-miZeroArcDashPts(
-    GCPtr pGC,
-    xArc *arc,
-    DashInfo *dinfo,
-    DDXPointPtr points,
-    int maxPts,
-    DDXPointPtr *evenPts, 
-    DDXPointPtr *oddPts )
-{
-    miZeroArcRec info;
-    int x, y, a, b, d, mask;
-    int k1, k3, dx, dy;
-    int dashRemaining;
-    DDXPointPtr arcPts[4];
-    DDXPointPtr startPts[5], endPts[5];
-    int deltas[5];
-    DDXPointPtr startPt, pt, lastPt, pts;
-    int i, j, delta, ptsdelta, seg, startseg;
-
-    for (i = 0; i < 4; i++)
-	arcPts[i] = points + (i * maxPts);
-    (void)miZeroArcSetup(arc, &info, FALSE);
-    MIARCSETUP();
-    mask = info.initialMask;
-    startseg = info.startAngle / QUADRANT;
-    startPt = arcPts[startseg];
-    if (!(arc->width & 1))
-    {
-	DoPix(1, info.xorgo, info.yorg);
-	DoPix(3, info.xorgo, info.yorgo);
-    }
-    if (!info.end.x || !info.end.y)
-    {
-	mask = info.end.mask;
-	info.end = info.altend;
-    }
-    while (y < info.h || x < info.w)
-    {
-	MIARCOCTANTSHIFT(;);
-	if ((x == info.firstx) || (y == info.firsty))
-	    startPt = arcPts[startseg];
-	if ((x == info.start.x) || (y == info.start.y))
-	{
-	    mask = info.start.mask;
-	    info.start = info.altstart;
-	}
-	DoPix(0, info.xorg + x, info.yorg + y);
-	DoPix(1, info.xorgo - x, info.yorg + y);
-	DoPix(2, info.xorgo - x, info.yorgo - y);
-	DoPix(3, info.xorg + x, info.yorgo - y);
-	if ((x == info.end.x) || (y == info.end.y))
-	{
-	    mask = info.end.mask;
-	    info.end = info.altend;
-	}
-	MIARCSTEP(;,;);
-    }
-    if ((x == info.firstx) || (y == info.firsty))
-	startPt = arcPts[startseg];
-    if ((x == info.start.x) || (y == info.start.y))
-	mask = info.start.mask;
-    DoPix(0, info.xorg + x, info.yorg + y);
-    DoPix(2, info.xorgo - x, info.yorgo - y);
-    if (arc->height & 1)
-    {
-	DoPix(1, info.xorgo - x, info.yorg + y);
-	DoPix(3, info.xorg + x, info.yorgo - y);
-    }
-    for (i = 0; i < 4; i++)
-    {
-	seg = (startseg + i) & 3;
-	pt = points + (seg * maxPts);
-	if (seg & 1)
-	{
-	    startPts[i] = pt;
-	    endPts[i] = arcPts[seg];
-	    deltas[i] = 1;
-	}
-	else
-	{
-	    startPts[i] = arcPts[seg] - 1;
-	    endPts[i] = pt - 1;
-	    deltas[i] = -1;
-	}
-    }
-    startPts[4] = startPts[0];
-    endPts[4] = startPt;
-    startPts[0] = startPt;
-    if (startseg & 1)
-    {
-	if (startPts[4] != endPts[4])
-	    endPts[4]--;
-	deltas[4] = 1;
-    }
-    else
-    {
-	if (startPts[0] > startPts[4])
-	    startPts[0]--;
-	if (startPts[4] < endPts[4])
-	    endPts[4]--;
-	deltas[4] = -1;
-    }
-    if (arc->angle2 < 0)
-    {
-	DDXPointPtr tmps, tmpe;
-	int tmpd;
-
-	tmpd = deltas[0];
-	tmps = startPts[0] - tmpd;
-	tmpe = endPts[0] - tmpd;
-	startPts[0] = endPts[4] - deltas[4];
-	endPts[0] = startPts[4] - deltas[4];
-	deltas[0] = -deltas[4];
-	startPts[4] = tmpe;
-	endPts[4] = tmps;
-	deltas[4] = -tmpd;
-	tmpd = deltas[1];
-	tmps = startPts[1] - tmpd;
-	tmpe = endPts[1] - tmpd;
-	startPts[1] = endPts[3] - deltas[3];
-	endPts[1] = startPts[3] - deltas[3];
-	deltas[1] = -deltas[3];
-	startPts[3] = tmpe;
-	endPts[3] = tmps;
-	deltas[3] = -tmpd;
-	tmps = startPts[2] - deltas[2];
-	startPts[2] = endPts[2] - deltas[2];
-	endPts[2] = tmps;
-	deltas[2] = -deltas[2];
-    }
-    for (i = 0; i < 5 && startPts[i] == endPts[i]; i++)
-	;
-    if (i == 5)
-	return;
-    pt = startPts[i];
-    for (j = 4; startPts[j] == endPts[j]; j--)
-	;
-    lastPt = endPts[j] - deltas[j];
-    if (dinfo->haveLast &&
-	(pt->x == dinfo->endPt.x) && (pt->y == dinfo->endPt.y))
-    {
-	startPts[i] += deltas[i];
-    }
-    else
-    {
-	dinfo->dashIndex = dinfo->dashIndexInit;
-	dinfo->dashOffset = dinfo->dashOffsetInit;
-    }
-    if (!dinfo->skipStart && (info.startAngle != info.endAngle))
-    {
-	dinfo->startPt = *pt;
-	dinfo->haveStart = TRUE;
-    }
-    else if (!dinfo->skipLast && dinfo->haveStart &&
-	     (lastPt->x == dinfo->startPt.x) &&
-	     (lastPt->y == dinfo->startPt.y) &&
-	     (lastPt != startPts[i]))
-	endPts[j] = lastPt;
-    if (info.startAngle != info.endAngle)
-    {
-	dinfo->haveLast = TRUE;
-	dinfo->endPt = *lastPt;
-    }
-    dashRemaining = pGC->dash[dinfo->dashIndex] - dinfo->dashOffset;
-    for (i = 0; i < 5; i++)
-    {
-	pt = startPts[i];
-	lastPt = endPts[i];
-	delta = deltas[i];
-	while (pt != lastPt)
-	{
-	    if (dinfo->dashIndex & 1)
-	    {
-		pts = *oddPts;
-		ptsdelta = -1;
-	    }
-	    else
-	    {
-		pts = *evenPts;
-		ptsdelta = 1;
-	    }
-	    while ((pt != lastPt) && --dashRemaining >= 0)
-	    {
-		*pts = *pt;
-		pts += ptsdelta;
-		pt += delta;
-	    }
-	    if (dinfo->dashIndex & 1)
-		*oddPts = pts;
-	    else
-		*evenPts = pts;
-	    if (dashRemaining <= 0)
-	    {
-		if (++(dinfo->dashIndex) == pGC->numInDashList)
-		    dinfo->dashIndex = 0;
-		dashRemaining = pGC->dash[dinfo->dashIndex];
-	    }
-	}
-    }
-    dinfo->dashOffset = pGC->dash[dinfo->dashIndex] - dashRemaining;
-}
-
-void
-miZeroPolyArc(DrawablePtr pDraw, GCPtr pGC, int narcs, xArc *parcs)
-{
-    int maxPts = 0;
-    int n, maxw = 0;
-    xArc *arc;
-    int i;
-    DDXPointPtr points, pts, oddPts = NULL;
-    DDXPointPtr pt;
-    int numPts;
-    Bool dospans;
-    int *widths = NULL;
-    XID fgPixel = pGC->fgPixel;
-    DashInfo dinfo;
-
-    for (arc = parcs, i = narcs; --i >= 0; arc++)
-    {
-	if (!miCanZeroArc(arc))
-	    miPolyArc(pDraw, pGC, 1, arc);
-	else
-	{
-	    if (arc->width > arc->height)
-		n = arc->width + (arc->height >> 1);
-	    else
-		n = arc->height + (arc->width >> 1);
-	    if (n > maxPts)
-		maxPts = n;
-	}
-    }
-    if (!maxPts)
-	return;
-    numPts = maxPts << 2;
-    dospans = (pGC->fillStyle != FillSolid);
-    if (dospans)
-    {
-	widths = xalloc(sizeof(int) * numPts);
-	if (!widths)
-	    return;
-	maxw = 0;
-    }
-    if (pGC->lineStyle != LineSolid)
-    {
-	numPts <<= 1;
-	dinfo.haveStart = FALSE;
-	dinfo.skipStart = FALSE;
-	dinfo.haveLast = FALSE;
-	dinfo.dashIndexInit = 0;
-	dinfo.dashOffsetInit = 0;
-	miStepDash((int)pGC->dashOffset, &dinfo.dashIndexInit,
-		   (unsigned char *) pGC->dash, (int)pGC->numInDashList,
-		   &dinfo.dashOffsetInit);
-    }
-    points = xalloc(sizeof(DDXPointRec) * numPts);
-    if (!points)
-    {
-	if (dospans)
-	{
-	    xfree(widths);
-	}
-	return;
-    }
-    for (arc = parcs, i = narcs; --i >= 0; arc++)
-    {
-	if (miCanZeroArc(arc))
-	{
-	    if (pGC->lineStyle == LineSolid)
-		pts = miZeroArcPts(arc, points);
-	    else
-	    {
-		pts = points;
-		oddPts = &points[(numPts >> 1) - 1];
-		dinfo.skipLast = i;
-		miZeroArcDashPts(pGC, arc, &dinfo,
-				 oddPts + 1, maxPts, &pts, &oddPts);
-		dinfo.skipStart = TRUE;
-	    }
-	    n = pts - points;
-	    if (!dospans)
-		(*pGC->ops->PolyPoint)(pDraw, pGC, CoordModeOrigin, n, points);
-	    else
-	    {
-		if (n > maxw)
-		{
-		    while (maxw < n)
-			widths[maxw++] = 1;
-		}
-		if (pGC->miTranslate)
-		{
-		    for (pt = points; pt != pts; pt++)
-		    {
-			pt->x += pDraw->x;
-			pt->y += pDraw->y;
-		    }
-		}
-		(*pGC->ops->FillSpans)(pDraw, pGC, n, points, widths, FALSE);
-	    }
-	    if (pGC->lineStyle != LineDoubleDash)
-		continue;
-	    if ((pGC->fillStyle == FillSolid) ||
-		(pGC->fillStyle == FillStippled))
-	    {
-		DoChangeGC(pGC, GCForeground, (XID *)&pGC->bgPixel, 0);
-		ValidateGC(pDraw, pGC);
-	    }
-	    pts = &points[numPts >> 1];
-	    oddPts++;
-	    n = pts - oddPts;
-	    if (!dospans)
-		(*pGC->ops->PolyPoint)(pDraw, pGC, CoordModeOrigin, n, oddPts);
-	    else
-	    {
-		if (n > maxw)
-		{
-		    while (maxw < n)
-			widths[maxw++] = 1;
-		}
-		if (pGC->miTranslate)
-		{
-		    for (pt = oddPts; pt != pts; pt++)
-		    {
-			pt->x += pDraw->x;
-			pt->y += pDraw->y;
-		    }
-		}
-		(*pGC->ops->FillSpans)(pDraw, pGC, n, oddPts, widths, FALSE);
-	    }
-	    if ((pGC->fillStyle == FillSolid) ||
-		(pGC->fillStyle == FillStippled))
-	    {
-		DoChangeGC(pGC, GCForeground, &fgPixel, 0);
-		ValidateGC(pDraw, pGC);
-	    }
-	}
-    }
-    xfree(points);
-    if (dospans)
-    {
-	xfree(widths);
-    }
-}
+/************************************************************

+

+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.

+

+Author:  Bob Scheifler, MIT X Consortium

+

+********************************************************/

+

+

+/* Derived from:

+ * "Algorithm for drawing ellipses or hyperbolae with a digital plotter"

+ * by M. L. V. Pitteway

+ * The Computer Journal, November 1967, Volume 10, Number 3, pp. 282-289

+ */

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <math.h>

+#include <X11/X.h>

+#include <X11/Xprotostr.h>

+#include "regionstr.h"

+#include "gcstruct.h"

+#include "pixmapstr.h"

+#include "mi.h"

+#include "mizerarc.h"

+

+#define FULLCIRCLE (360 * 64)

+#define OCTANT (45 * 64)

+#define QUADRANT (90 * 64)

+#define HALFCIRCLE (180 * 64)

+#define QUADRANT3 (270 * 64)

+

+#ifndef M_PI

+#define M_PI	3.14159265358979323846

+#endif

+

+#define Dsin(d)	((d) == 0 ? 0.0 : ((d) == QUADRANT ? 1.0 : \

+		 ((d) == HALFCIRCLE ? 0.0 : \

+		 ((d) == QUADRANT3 ? -1.0 : sin((double)d*(M_PI/11520.0))))))

+

+#define Dcos(d)	((d) == 0 ? 1.0 : ((d) == QUADRANT ? 0.0 : \

+		 ((d) == HALFCIRCLE ? -1.0 : \

+		 ((d) == QUADRANT3 ? 0.0 : cos((double)d*(M_PI/11520.0))))))

+

+#define EPSILON45 64

+

+typedef struct {

+    int skipStart;

+    int haveStart;

+    DDXPointRec startPt;

+    int haveLast;

+    int skipLast;

+    DDXPointRec endPt;

+    int dashIndex;

+    int dashOffset;

+    int dashIndexInit;

+    int dashOffsetInit;

+} DashInfo;

+

+static miZeroArcPtRec oob = {65536, 65536, 0};

+

+/*

+ * (x - l)^2 / (W/2)^2  + (y + H/2)^2 / (H/2)^2 = 1

+ *

+ * where l is either 0 or .5

+ *

+ * alpha = 4(W^2)

+ * beta = 4(H^2)

+ * gamma = 0

+ * u = 2(W^2)H

+ * v = 4(H^2)l

+ * k = -4(H^2)(l^2)

+ *

+ */

+

+Bool

+miZeroArcSetup(xArc *arc, miZeroArcRec *info, Bool ok360)

+{

+    int l;

+    int angle1, angle2;

+    int startseg, endseg;

+    int startAngle, endAngle;

+    int i, overlap;

+    miZeroArcPtRec start, end;

+

+    l = arc->width & 1;

+    if (arc->width == arc->height)

+    {

+	info->alpha = 4;

+	info->beta = 4;

+	info->k1 = -8;

+	info->k3 = -16;

+	info->b = 12;

+	info->a = (arc->width << 2) - 12;

+	info->d = 17 - (arc->width << 1);

+	if (l)

+	{

+	    info->b -= 4;

+	    info->a += 4;

+	    info->d -= 7;

+	}

+    }

+    else if (!arc->width || !arc->height)

+    {

+	info->alpha = 0;

+	info->beta = 0;

+	info->k1 = 0;

+	info->k3 = 0;

+	info->a = -(int)arc->height;

+	info->b = 0;

+	info->d = -1;

+    }

+    else

+    {

+	/* initial conditions */

+	info->alpha = (arc->width * arc->width) << 2;

+	info->beta = (arc->height * arc->height) << 2;

+	info->k1 = info->beta << 1;

+	info->k3 = info->k1 + (info->alpha << 1);

+	info->b = l ? 0 : -info->beta;

+	info->a = info->alpha * arc->height;

+	info->d = info->b - (info->a >> 1) - (info->alpha >> 2);

+	if (l)

+	    info->d -= info->beta >> 2;

+	info->a -= info->b;

+	/* take first step, d < 0 always */

+	info->b -= info->k1;

+	info->a += info->k1;

+	info->d += info->b;

+	/* octant change, b < 0 always */

+	info->k1 = -info->k1;

+	info->k3 = -info->k3;

+	info->b = -info->b;

+	info->d = info->b - info->a - info->d;

+	info->a = info->a - (info->b << 1);

+    }

+    info->dx = 1;

+    info->dy = 0;

+    info->w = (arc->width + 1) >> 1;

+    info->h = arc->height >> 1;

+    info->xorg = arc->x + (arc->width >> 1);

+    info->yorg = arc->y;

+    info->xorgo = info->xorg + l;

+    info->yorgo = info->yorg + arc->height;

+    if (!arc->width)

+    {

+	if (!arc->height)

+	{

+	    info->x = 0;

+	    info->y = 0;

+	    info->initialMask = 0;

+	    info->startAngle = 0;

+	    info->endAngle = 0;

+	    info->start = oob;

+	    info->end = oob;

+	    return FALSE;

+	}

+	info->x = 0;

+	info->y = 1;

+    }

+    else

+    {

+	info->x = 1;

+	info->y = 0;

+    }

+    angle1 = arc->angle1;

+    angle2 = arc->angle2;

+    if ((angle1 == 0) && (angle2 >= FULLCIRCLE))

+    {

+	startAngle = 0;

+	endAngle = 0;

+    }

+    else

+    {

+	if (angle2 > FULLCIRCLE)

+	    angle2 = FULLCIRCLE;

+	else if (angle2 < -FULLCIRCLE)

+	    angle2 = -FULLCIRCLE;

+	if (angle2 < 0)

+	{

+	    startAngle = angle1 + angle2;

+	    endAngle = angle1;

+	}

+	else

+	{

+	    startAngle = angle1;

+	    endAngle = angle1 + angle2;

+	}

+	if (startAngle < 0)

+	    startAngle = FULLCIRCLE - (-startAngle) % FULLCIRCLE;

+	if (startAngle >= FULLCIRCLE)

+	    startAngle = startAngle % FULLCIRCLE;

+	if (endAngle < 0)

+	    endAngle = FULLCIRCLE - (-endAngle) % FULLCIRCLE;

+	if (endAngle >= FULLCIRCLE)

+	    endAngle = endAngle % FULLCIRCLE;

+    }

+    info->startAngle = startAngle;

+    info->endAngle = endAngle;

+    if (ok360 && (startAngle == endAngle) && arc->angle2 &&

+	arc->width && arc->height)

+    {

+	info->initialMask = 0xf;

+	info->start = oob;

+	info->end = oob;

+	return TRUE;

+    }

+    startseg = startAngle / OCTANT;

+    if (!arc->height || (((startseg + 1) & 2) && arc->width))

+    {

+	start.x = Dcos(startAngle) * ((arc->width + 1) / 2.0);

+	if (start.x < 0)

+	    start.x = -start.x;

+	start.y = -1;

+    }

+    else

+    {

+	start.y = Dsin(startAngle) * (arc->height / 2.0);

+	if (start.y < 0)

+	    start.y = -start.y;

+	start.y = info->h - start.y;

+	start.x = 65536;

+    }

+    endseg = endAngle / OCTANT;

+    if (!arc->height || (((endseg + 1) & 2) && arc->width))

+    {

+	end.x = Dcos(endAngle) * ((arc->width + 1) / 2.0);

+	if (end.x < 0)

+	    end.x = -end.x;

+	end.y = -1;

+    }

+    else

+    {

+	end.y = Dsin(endAngle) * (arc->height / 2.0);

+	if (end.y < 0)

+	    end.y = -end.y;

+	end.y = info->h - end.y;

+	end.x = 65536;

+    }

+    info->firstx = start.x;

+    info->firsty = start.y;

+    info->initialMask = 0;

+    overlap = arc->angle2 && (endAngle <= startAngle);

+    for (i = 0; i < 4; i++)

+    {

+	if (overlap ?

+	    ((i * QUADRANT <= endAngle) || ((i + 1) * QUADRANT > startAngle)) :

+	    ((i * QUADRANT <= endAngle) && ((i + 1) * QUADRANT > startAngle)))

+	    info->initialMask |= (1 << i);

+    }

+    start.mask = info->initialMask;

+    end.mask = info->initialMask;

+    startseg >>= 1;

+    endseg >>= 1;

+    overlap = overlap && (endseg == startseg);

+    if (start.x != end.x || start.y != end.y || !overlap)

+    {

+	if (startseg & 1)

+	{

+	    if (!overlap)

+		info->initialMask &= ~(1 << startseg);

+	    if (start.x > end.x || start.y > end.y)

+		end.mask &= ~(1 << startseg);

+	}

+	else

+	{

+	    start.mask &= ~(1 << startseg);

+	    if (((start.x < end.x || start.y < end.y) ||

+		 (start.x == end.x && start.y == end.y && (endseg & 1))) &&

+		!overlap)

+		end.mask &= ~(1 << startseg);

+	}

+	if (endseg & 1)

+	{

+	    end.mask &= ~(1 << endseg);

+	    if (((start.x > end.x || start.y > end.y) ||

+		 (start.x == end.x && start.y == end.y && !(startseg & 1))) &&

+		!overlap)

+		start.mask &= ~(1 << endseg);

+	}

+	else

+	{

+	    if (!overlap)

+		info->initialMask &= ~(1 << endseg);

+	    if (start.x < end.x || start.y < end.y)

+		start.mask &= ~(1 << endseg);

+	}

+    }

+    /* take care of case when start and stop are both near 45 */

+    /* handle here rather than adding extra code to pixelization loops */

+    if (startAngle &&

+	((start.y < 0 && end.y >= 0) || (start.y >= 0 && end.y < 0)))

+    {

+	i = (startAngle + OCTANT) % OCTANT;

+	if (i < EPSILON45 || i > OCTANT - EPSILON45)

+	{

+	    i = (endAngle + OCTANT) % OCTANT;

+	    if (i < EPSILON45 || i > OCTANT - EPSILON45)

+	    {

+		if (start.y < 0)

+		{

+		    i = Dsin(startAngle) * (arc->height / 2.0);

+		    if (i < 0)

+			i = -i;

+		    if (info->h - i == end.y)

+			start.mask = end.mask;

+		}

+		else

+		{

+		    i = Dsin(endAngle) * (arc->height / 2.0);

+		    if (i < 0)

+			i = -i;

+		    if (info->h - i == start.y)

+			end.mask = start.mask;

+		}

+	    }

+	}

+    }

+    if (startseg & 1)

+    {

+	info->start = start;

+	info->end = oob;

+    }

+    else

+    {

+	info->end = start;

+	info->start = oob;

+    }

+    if (endseg & 1)

+    {

+	info->altend = end;

+	if (info->altend.x < info->end.x || info->altend.y < info->end.y)

+	{

+	    miZeroArcPtRec tmp;

+	    tmp = info->altend;

+	    info->altend = info->end;

+	    info->end = tmp;

+	}

+	info->altstart = oob;

+    }

+    else

+    {

+	info->altstart = end;

+	if (info->altstart.x < info->start.x ||

+	    info->altstart.y < info->start.y)

+	{

+	    miZeroArcPtRec tmp;

+	    tmp = info->altstart;

+	    info->altstart = info->start;

+	    info->start = tmp;

+	}

+	info->altend = oob;

+    }

+    if (!info->start.x || !info->start.y)

+    {

+	info->initialMask = info->start.mask;

+	info->start = info->altstart;

+    }

+    if (!arc->width && (arc->height == 1))

+    {

+	/* kludge! */

+	info->initialMask |= info->end.mask;

+	info->initialMask |= info->initialMask << 1;

+	info->end.x = 0;

+	info->end.mask = 0;

+    }

+    return FALSE;

+}

+

+#define Pixelate(xval,yval) \

+    { \

+	pts->x = xval; \

+	pts->y = yval; \

+	pts++; \

+    }

+

+#define DoPix(idx,xval,yval) if (mask & (1 << idx)) Pixelate(xval, yval);

+

+static DDXPointPtr

+miZeroArcPts(xArc *arc, DDXPointPtr pts)

+{

+    miZeroArcRec info;

+    int x, y, a, b, d, mask;

+    int k1, k3, dx, dy;

+    Bool do360;

+

+    do360 = miZeroArcSetup(arc, &info, TRUE);

+    MIARCSETUP();

+    mask = info.initialMask;

+    if (!(arc->width & 1))

+    {

+	DoPix(1, info.xorgo, info.yorg);

+	DoPix(3, info.xorgo, info.yorgo);

+    }

+    if (!info.end.x || !info.end.y)

+    {

+	mask = info.end.mask;

+	info.end = info.altend;

+    }

+    if (do360 && (arc->width == arc->height) && !(arc->width & 1))

+    {

+	int yorgh = info.yorg + info.h;

+	int xorghp = info.xorg + info.h;

+	int xorghn = info.xorg - info.h;

+

+	while (1)

+	{

+	    Pixelate(info.xorg + x, info.yorg + y);

+	    Pixelate(info.xorg - x, info.yorg + y);

+	    Pixelate(info.xorg - x, info.yorgo - y);

+	    Pixelate(info.xorg + x, info.yorgo - y);

+	    if (a < 0)

+		break;

+	    Pixelate(xorghp - y, yorgh - x);

+	    Pixelate(xorghn + y, yorgh - x);

+	    Pixelate(xorghn + y, yorgh + x);

+	    Pixelate(xorghp - y, yorgh + x);

+	    MIARCCIRCLESTEP(;);

+	}

+	if (x > 1 && pts[-1].x == pts[-5].x && pts[-1].y == pts[-5].y)

+	    pts -= 4;

+	x = info.w;

+	y = info.h;

+    }

+    else if (do360)

+    {

+	while (y < info.h || x < info.w)

+	{

+	    MIARCOCTANTSHIFT(;);

+	    Pixelate(info.xorg + x, info.yorg + y);

+	    Pixelate(info.xorgo - x, info.yorg + y);

+	    Pixelate(info.xorgo - x, info.yorgo - y);

+	    Pixelate(info.xorg + x, info.yorgo - y);

+	    MIARCSTEP(;,;);

+	}

+    }

+    else

+    {

+	while (y < info.h || x < info.w)

+	{

+	    MIARCOCTANTSHIFT(;);

+	    if ((x == info.start.x) || (y == info.start.y))

+	    {

+		mask = info.start.mask;

+		info.start = info.altstart;

+	    }

+	    DoPix(0, info.xorg + x, info.yorg + y);

+	    DoPix(1, info.xorgo - x, info.yorg + y);

+	    DoPix(2, info.xorgo - x, info.yorgo - y);

+	    DoPix(3, info.xorg + x, info.yorgo - y);

+	    if ((x == info.end.x) || (y == info.end.y))

+	    {

+		mask = info.end.mask;

+		info.end = info.altend;

+	    }

+	    MIARCSTEP(;,;);

+	}

+    }

+    if ((x == info.start.x) || (y == info.start.y))

+	mask = info.start.mask;

+    DoPix(0, info.xorg + x, info.yorg + y);

+    DoPix(2, info.xorgo - x, info.yorgo - y);

+    if (arc->height & 1)

+    {

+	DoPix(1, info.xorgo - x, info.yorg + y);

+	DoPix(3, info.xorg + x, info.yorgo - y);

+    }

+    return pts;

+}

+

+#undef DoPix

+#define DoPix(idx,xval,yval) \

+    if (mask & (1 << idx)) \

+    { \

+	arcPts[idx]->x = xval; \

+	arcPts[idx]->y = yval; \

+	arcPts[idx]++; \

+    }

+

+static void

+miZeroArcDashPts(

+    GCPtr pGC,

+    xArc *arc,

+    DashInfo *dinfo,

+    DDXPointPtr points,

+    int maxPts,

+    DDXPointPtr *evenPts, 

+    DDXPointPtr *oddPts )

+{

+    miZeroArcRec info;

+    int x, y, a, b, d, mask;

+    int k1, k3, dx, dy;

+    int dashRemaining;

+    DDXPointPtr arcPts[4];

+    DDXPointPtr startPts[5], endPts[5];

+    int deltas[5];

+    DDXPointPtr startPt, pt, lastPt, pts;

+    int i, j, delta, ptsdelta, seg, startseg;

+

+    for (i = 0; i < 4; i++)

+	arcPts[i] = points + (i * maxPts);

+    (void)miZeroArcSetup(arc, &info, FALSE);

+    MIARCSETUP();

+    mask = info.initialMask;

+    startseg = info.startAngle / QUADRANT;

+    startPt = arcPts[startseg];

+    if (!(arc->width & 1))

+    {

+	DoPix(1, info.xorgo, info.yorg);

+	DoPix(3, info.xorgo, info.yorgo);

+    }

+    if (!info.end.x || !info.end.y)

+    {

+	mask = info.end.mask;

+	info.end = info.altend;

+    }

+    while (y < info.h || x < info.w)

+    {

+	MIARCOCTANTSHIFT(;);

+	if ((x == info.firstx) || (y == info.firsty))

+	    startPt = arcPts[startseg];

+	if ((x == info.start.x) || (y == info.start.y))

+	{

+	    mask = info.start.mask;

+	    info.start = info.altstart;

+	}

+	DoPix(0, info.xorg + x, info.yorg + y);

+	DoPix(1, info.xorgo - x, info.yorg + y);

+	DoPix(2, info.xorgo - x, info.yorgo - y);

+	DoPix(3, info.xorg + x, info.yorgo - y);

+	if ((x == info.end.x) || (y == info.end.y))

+	{

+	    mask = info.end.mask;

+	    info.end = info.altend;

+	}

+	MIARCSTEP(;,;);

+    }

+    if ((x == info.firstx) || (y == info.firsty))

+	startPt = arcPts[startseg];

+    if ((x == info.start.x) || (y == info.start.y))

+	mask = info.start.mask;

+    DoPix(0, info.xorg + x, info.yorg + y);

+    DoPix(2, info.xorgo - x, info.yorgo - y);

+    if (arc->height & 1)

+    {

+	DoPix(1, info.xorgo - x, info.yorg + y);

+	DoPix(3, info.xorg + x, info.yorgo - y);

+    }

+    for (i = 0; i < 4; i++)

+    {

+	seg = (startseg + i) & 3;

+	pt = points + (seg * maxPts);

+	if (seg & 1)

+	{

+	    startPts[i] = pt;

+	    endPts[i] = arcPts[seg];

+	    deltas[i] = 1;

+	}

+	else

+	{

+	    startPts[i] = arcPts[seg] - 1;

+	    endPts[i] = pt - 1;

+	    deltas[i] = -1;

+	}

+    }

+    startPts[4] = startPts[0];

+    endPts[4] = startPt;

+    startPts[0] = startPt;

+    if (startseg & 1)

+    {

+	if (startPts[4] != endPts[4])

+	    endPts[4]--;

+	deltas[4] = 1;

+    }

+    else

+    {

+	if (startPts[0] > startPts[4])

+	    startPts[0]--;

+	if (startPts[4] < endPts[4])

+	    endPts[4]--;

+	deltas[4] = -1;

+    }

+    if (arc->angle2 < 0)

+    {

+	DDXPointPtr tmps, tmpe;

+	int tmpd;

+

+	tmpd = deltas[0];

+	tmps = startPts[0] - tmpd;

+	tmpe = endPts[0] - tmpd;

+	startPts[0] = endPts[4] - deltas[4];

+	endPts[0] = startPts[4] - deltas[4];

+	deltas[0] = -deltas[4];

+	startPts[4] = tmpe;

+	endPts[4] = tmps;

+	deltas[4] = -tmpd;

+	tmpd = deltas[1];

+	tmps = startPts[1] - tmpd;

+	tmpe = endPts[1] - tmpd;

+	startPts[1] = endPts[3] - deltas[3];

+	endPts[1] = startPts[3] - deltas[3];

+	deltas[1] = -deltas[3];

+	startPts[3] = tmpe;

+	endPts[3] = tmps;

+	deltas[3] = -tmpd;

+	tmps = startPts[2] - deltas[2];

+	startPts[2] = endPts[2] - deltas[2];

+	endPts[2] = tmps;

+	deltas[2] = -deltas[2];

+    }

+    for (i = 0; i < 5 && startPts[i] == endPts[i]; i++)

+	;

+    if (i == 5)

+	return;

+    pt = startPts[i];

+    for (j = 4; startPts[j] == endPts[j]; j--)

+	;

+    lastPt = endPts[j] - deltas[j];

+    if (dinfo->haveLast &&

+	(pt->x == dinfo->endPt.x) && (pt->y == dinfo->endPt.y))

+    {

+	startPts[i] += deltas[i];

+    }

+    else

+    {

+	dinfo->dashIndex = dinfo->dashIndexInit;

+	dinfo->dashOffset = dinfo->dashOffsetInit;

+    }

+    if (!dinfo->skipStart && (info.startAngle != info.endAngle))

+    {

+	dinfo->startPt = *pt;

+	dinfo->haveStart = TRUE;

+    }

+    else if (!dinfo->skipLast && dinfo->haveStart &&

+	     (lastPt->x == dinfo->startPt.x) &&

+	     (lastPt->y == dinfo->startPt.y) &&

+	     (lastPt != startPts[i]))

+	endPts[j] = lastPt;

+    if (info.startAngle != info.endAngle)

+    {

+	dinfo->haveLast = TRUE;

+	dinfo->endPt = *lastPt;

+    }

+    dashRemaining = pGC->dash[dinfo->dashIndex] - dinfo->dashOffset;

+    for (i = 0; i < 5; i++)

+    {

+	pt = startPts[i];

+	lastPt = endPts[i];

+	delta = deltas[i];

+	while (pt != lastPt)

+	{

+	    if (dinfo->dashIndex & 1)

+	    {

+		pts = *oddPts;

+		ptsdelta = -1;

+	    }

+	    else

+	    {

+		pts = *evenPts;

+		ptsdelta = 1;

+	    }

+	    while ((pt != lastPt) && --dashRemaining >= 0)

+	    {

+		*pts = *pt;

+		pts += ptsdelta;

+		pt += delta;

+	    }

+	    if (dinfo->dashIndex & 1)

+		*oddPts = pts;

+	    else

+		*evenPts = pts;

+	    if (dashRemaining <= 0)

+	    {

+		if (++(dinfo->dashIndex) == pGC->numInDashList)

+		    dinfo->dashIndex = 0;

+		dashRemaining = pGC->dash[dinfo->dashIndex];

+	    }

+	}

+    }

+    dinfo->dashOffset = pGC->dash[dinfo->dashIndex] - dashRemaining;

+}

+

+void

+miZeroPolyArc(DrawablePtr pDraw, GCPtr pGC, int narcs, xArc *parcs)

+{

+    int maxPts = 0;

+    int n, maxw = 0;

+    xArc *arc;

+    int i;

+    DDXPointPtr points, pts, oddPts = NULL;

+    DDXPointPtr pt;

+    int numPts;

+    Bool dospans;

+    int *widths = NULL;

+    XID fgPixel = pGC->fgPixel;

+    DashInfo dinfo;

+

+    for (arc = parcs, i = narcs; --i >= 0; arc++)

+    {

+	if (!miCanZeroArc(arc))

+	    miPolyArc(pDraw, pGC, 1, arc);

+	else

+	{

+	    if (arc->width > arc->height)

+		n = arc->width + (arc->height >> 1);

+	    else

+		n = arc->height + (arc->width >> 1);

+	    if (n > maxPts)

+		maxPts = n;

+	}

+    }

+    if (!maxPts)

+	return;

+    numPts = maxPts << 2;

+    dospans = (pGC->fillStyle != FillSolid);

+    if (dospans)

+    {

+	widths = malloc(sizeof(int) * numPts);

+	if (!widths)

+	    return;

+	maxw = 0;

+    }

+    if (pGC->lineStyle != LineSolid)

+    {

+	numPts <<= 1;

+	dinfo.haveStart = FALSE;

+	dinfo.skipStart = FALSE;

+	dinfo.haveLast = FALSE;

+	dinfo.dashIndexInit = 0;

+	dinfo.dashOffsetInit = 0;

+	miStepDash((int)pGC->dashOffset, &dinfo.dashIndexInit,

+		   (unsigned char *) pGC->dash, (int)pGC->numInDashList,

+		   &dinfo.dashOffsetInit);

+    }

+    points = malloc(sizeof(DDXPointRec) * numPts);

+    if (!points)

+    {

+	if (dospans)

+	{

+	    free(widths);

+	}

+	return;

+    }

+    for (arc = parcs, i = narcs; --i >= 0; arc++)

+    {

+	if (miCanZeroArc(arc))

+	{

+	    if (pGC->lineStyle == LineSolid)

+		pts = miZeroArcPts(arc, points);

+	    else

+	    {

+		pts = points;

+		oddPts = &points[(numPts >> 1) - 1];

+		dinfo.skipLast = i;

+		miZeroArcDashPts(pGC, arc, &dinfo,

+				 oddPts + 1, maxPts, &pts, &oddPts);

+		dinfo.skipStart = TRUE;

+	    }

+	    n = pts - points;

+	    if (!dospans)

+		(*pGC->ops->PolyPoint)(pDraw, pGC, CoordModeOrigin, n, points);

+	    else

+	    {

+		if (n > maxw)

+		{

+		    while (maxw < n)

+			widths[maxw++] = 1;

+		}

+		if (pGC->miTranslate)

+		{

+		    for (pt = points; pt != pts; pt++)

+		    {

+			pt->x += pDraw->x;

+			pt->y += pDraw->y;

+		    }

+		}

+		(*pGC->ops->FillSpans)(pDraw, pGC, n, points, widths, FALSE);

+	    }

+	    if (pGC->lineStyle != LineDoubleDash)

+		continue;

+	    if ((pGC->fillStyle == FillSolid) ||

+		(pGC->fillStyle == FillStippled))

+	    {

+		ChangeGCVal gcval;

+		gcval.val = pGC->bgPixel;

+		ChangeGC(NullClient, pGC, GCForeground, &gcval);

+		ValidateGC(pDraw, pGC);

+	    }

+	    pts = &points[numPts >> 1];

+	    oddPts++;

+	    n = pts - oddPts;

+	    if (!dospans)

+		(*pGC->ops->PolyPoint)(pDraw, pGC, CoordModeOrigin, n, oddPts);

+	    else

+	    {

+		if (n > maxw)

+		{

+		    while (maxw < n)

+			widths[maxw++] = 1;

+		}

+		if (pGC->miTranslate)

+		{

+		    for (pt = oddPts; pt != pts; pt++)

+		    {

+			pt->x += pDraw->x;

+			pt->y += pDraw->y;

+		    }

+		}

+		(*pGC->ops->FillSpans)(pDraw, pGC, n, oddPts, widths, FALSE);

+	    }

+	    if ((pGC->fillStyle == FillSolid) ||

+		(pGC->fillStyle == FillStippled))

+	    {

+		ChangeGCVal gcval;

+		gcval.val = fgPixel;

+		ChangeGC(NullClient, pGC, GCForeground, &gcval);

+		ValidateGC(pDraw, pGC);

+	    }

+	}

+    }

+    free(points);

+    if (dospans)

+    {

+	free(widths);

+    }

+}

diff --git a/xorg-server/mi/mizerline.c b/xorg-server/mi/mizerline.c
index 46e2e2adc..d37e1cc96 100644
--- a/xorg-server/mi/mizerline.c
+++ b/xorg-server/mi/mizerline.c
@@ -1,379 +1,379 @@
-/***********************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
-                        All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its 
-documentation for any purpose and without fee is hereby granted, 
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in 
-supporting documentation, and that the name of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.  
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-
-#include "misc.h"
-#include "scrnintstr.h"
-#include "gcstruct.h"
-#include "windowstr.h"
-#include "pixmap.h"
-#include "mi.h"
-#include "miline.h"
-
-/* Draw lineSolid, fillStyle-independent zero width lines.
- *
- * Must keep X and Y coordinates in "ints" at least until after they're
- * translated and clipped to accomodate CoordModePrevious lines with very
- * large coordinates.
- *
- * Draws the same pixels regardless of sign(dx) or sign(dy).
- *
- * Ken Whaley
- *
- */
-
-/* largest positive value that can fit into a component of a point.
- * Assumes that the point structure is {type x, y;} where type is
- * a signed type.
- */
-#define MAX_COORDINATE ((1 << (((sizeof(DDXPointRec) >> 1) << 3) - 1)) - 1)
-
-#define MI_OUTPUT_POINT(xx, yy)\
-{\
-    if ( !new_span && yy == current_y)\
-    {\
-        if (xx < spans->x)\
-	    spans->x = xx;\
-	++*widths;\
-    }\
-    else\
-    {\
-        ++Nspans;\
-	++spans;\
-	++widths;\
-	spans->x = xx;\
-	spans->y = yy;\
-	*widths = 1;\
-	current_y = yy;\
-        new_span = FALSE;\
-    }\
-}
-
-void
-miZeroLine(
-    DrawablePtr pDraw,
-    GCPtr	pGC,
-    int		mode,		/* Origin or Previous */
-    int		npt,		/* number of points */
-    DDXPointPtr pptInit)
-{
-    int Nspans, current_y = 0;
-    DDXPointPtr ppt; 
-    DDXPointPtr pspanInit, spans;
-    int *pwidthInit, *widths, list_len;
-    int xleft, ytop, xright, ybottom;
-    int new_x1, new_y1, new_x2, new_y2;
-    int x = 0, y = 0, x1, y1, x2, y2, xstart, ystart;
-    int oc1, oc2;
-    int result;
-    int pt1_clipped, pt2_clipped = 0;
-    Bool new_span;
-    int signdx, signdy;
-    int clipdx, clipdy;
-    int width, height;
-    int adx, ady;
-    int octant;
-    unsigned int bias = miGetZeroLineBias(pDraw->pScreen);
-    int e, e1, e2, e3;	/* Bresenham error terms */
-    int length;		/* length of lines == # of pixels on major axis */
-
-    xleft   = pDraw->x;
-    ytop    = pDraw->y;
-    xright  = pDraw->x + pDraw->width - 1;
-    ybottom = pDraw->y + pDraw->height - 1;
-
-    if (!pGC->miTranslate)
-    {
-	/* do everything in drawable-relative coordinates */
-	xleft    = 0;
-	ytop     = 0;
-	xright  -= pDraw->x;
-	ybottom -= pDraw->y;
-    }
-
-    /* it doesn't matter whether we're in drawable or screen coordinates,
-     * FillSpans simply cannot take starting coordinates outside of the
-     * range of a DDXPointRec component.
-     */
-    if (xright > MAX_COORDINATE)
-	xright = MAX_COORDINATE;
-    if (ybottom > MAX_COORDINATE)
-	ybottom = MAX_COORDINATE;
-
-    /* since we're clipping to the drawable's boundaries & coordinate
-     * space boundaries, we're guaranteed that the larger of width/height
-     * is the longest span we'll need to output
-     */
-    width = xright - xleft + 1;
-    height = ybottom - ytop + 1;
-    list_len = (height >= width) ? height : width;
-    pspanInit = xalloc(list_len * sizeof(DDXPointRec));
-    pwidthInit = xalloc(list_len * sizeof(int));
-    if (!pspanInit || !pwidthInit)
-	return;
-
-    Nspans = 0;
-    new_span = TRUE;
-    spans  = pspanInit - 1;
-    widths = pwidthInit - 1;
-    ppt = pptInit;
-
-    xstart = ppt->x;
-    ystart = ppt->y;
-    if (pGC->miTranslate)
-    {
-	xstart += pDraw->x;
-	ystart += pDraw->y;
-    }
-    
-    /* x2, y2, oc2 copied to x1, y1, oc1 at top of loop to simplify
-     * iteration logic
-     */
-    x2 = xstart;
-    y2 = ystart;
-    oc2 = 0;
-    MIOUTCODES(oc2, x2, y2, xleft, ytop, xright, ybottom);
-
-    while (--npt > 0)
-    {
-	if (Nspans > 0)
-	    (*pGC->ops->FillSpans)(pDraw, pGC, Nspans, pspanInit,
-				   pwidthInit, FALSE);
-	Nspans = 0;
-	new_span = TRUE;
-	spans  = pspanInit - 1;
-	widths = pwidthInit - 1;
-
-	x1  = x2;
-	y1  = y2;
-	oc1 = oc2;
-	++ppt;
-
-	x2 = ppt->x;
-	y2 = ppt->y;
-	if (pGC->miTranslate && (mode != CoordModePrevious))
-	{
-	    x2 += pDraw->x;
-	    y2 += pDraw->y;
-	}
-	else if (mode == CoordModePrevious)
-	{
-	    x2 += x1;
-	    y2 += y1;
-	}
-
-	oc2 = 0;
-	MIOUTCODES(oc2, x2, y2, xleft, ytop, xright, ybottom);
-
-	CalcLineDeltas(x1, y1, x2, y2, adx, ady, signdx, signdy, 1, 1, octant);
-
-	if (adx > ady)
-	{
-	    e1 = ady << 1;
-	    e2 = e1 - (adx << 1);
-	    e  = e1 - adx;
-	    length  = adx;	/* don't draw endpoint in main loop */
-
-	    FIXUP_ERROR(e, octant, bias);
-
-	    new_x1 = x1;
-	    new_y1 = y1;
-	    new_x2 = x2;
-	    new_y2 = y2;
-	    pt1_clipped = 0;
-	    pt2_clipped = 0;
-
-	    if ((oc1 | oc2) != 0)
-	    {
-		result = miZeroClipLine(xleft, ytop, xright, ybottom,
-					&new_x1, &new_y1, &new_x2, &new_y2,
-					adx, ady,
-					&pt1_clipped, &pt2_clipped,
-					octant, bias, oc1, oc2);
-		if (result == -1)
-		    continue;
-
-		length = abs(new_x2 - new_x1);
-
-		/* if we've clipped the endpoint, always draw the full length
-		 * of the segment, because then the capstyle doesn't matter 
-		 */
-		if (pt2_clipped)
-		    length++;
-
-		if (pt1_clipped)
-		{
-		    /* must calculate new error terms */
-		    clipdx = abs(new_x1 - x1);
-		    clipdy = abs(new_y1 - y1);
-		    e += (clipdy * e2) + ((clipdx - clipdy) * e1);
-		}
-	    }
-
-	    /* draw the segment */
-
-	    x = new_x1;
-	    y = new_y1;
-	    
-	    e3 = e2 - e1;
-	    e  = e - e1;
-
-	    while (length--)
-	    {
-		MI_OUTPUT_POINT(x, y);
-		e += e1;
-		if (e >= 0)
-		{
-		    y += signdy;
-		    e += e3;
-		}
-		x += signdx;
-	    }
-	}
-	else    /* Y major line */
-	{
-	    e1 = adx << 1;
-	    e2 = e1 - (ady << 1);
-	    e  = e1 - ady;
-	    length  = ady;	/* don't draw endpoint in main loop */
-
-	    SetYMajorOctant(octant);
-	    FIXUP_ERROR(e, octant, bias);
-
-	    new_x1 = x1;
-	    new_y1 = y1;
-	    new_x2 = x2;
-	    new_y2 = y2;
-	    pt1_clipped = 0;
-	    pt2_clipped = 0;
-
-	    if ((oc1 | oc2) != 0)
-	    {
-		result = miZeroClipLine(xleft, ytop, xright, ybottom,
-					&new_x1, &new_y1, &new_x2, &new_y2,
-					adx, ady,
-					&pt1_clipped, &pt2_clipped,
-					octant, bias, oc1, oc2);
-		if (result == -1)
-		    continue;
-
-		length = abs(new_y2 - new_y1);
-
-		/* if we've clipped the endpoint, always draw the full length
-		 * of the segment, because then the capstyle doesn't matter 
-		 */
-		if (pt2_clipped)
-		    length++;
-
-		if (pt1_clipped)
-		{
-		    /* must calculate new error terms */
-		    clipdx = abs(new_x1 - x1);
-		    clipdy = abs(new_y1 - y1);
-		    e += (clipdx * e2) + ((clipdy - clipdx) * e1);
-		}
-	    }
-
-	    /* draw the segment */
-
-	    x = new_x1;
-	    y = new_y1;
-
-	    e3 = e2 - e1;
-	    e  = e - e1;
-
-	    while (length--)
-	    {
-		MI_OUTPUT_POINT(x, y);
-		e += e1;
-		if (e >= 0)
-		{
-		    x += signdx;
-		    e += e3;
-		}
-		y += signdy;
-	    }
-	}
-    }
-
-    /* only do the capnotlast check on the last segment
-     * and only if the endpoint wasn't clipped.  And then, if the last
-     * point is the same as the first point, do not draw it, unless the
-     * line is degenerate
-     */
-    if ( (! pt2_clipped) && (pGC->capStyle != CapNotLast) &&
-		(((xstart != x2) || (ystart != y2)) || (ppt == pptInit + 1)))
-    {
-	MI_OUTPUT_POINT(x, y);
-    }    
-
-    if (Nspans > 0)
-	(*pGC->ops->FillSpans)(pDraw, pGC, Nspans, pspanInit,
-			       pwidthInit, FALSE);
-
-    xfree(pwidthInit);
-    xfree(pspanInit);
-}
-
-void
-miZeroDashLine(
-            DrawablePtr dst,
-            GCPtr pgc,
-            int mode,
-            int nptInit,		/* number of points in polyline */
-            DDXPointRec *pptInit	/* points in the polyline */
-        )
-{
-    /* XXX kludge until real zero-width dash code is written */
-    pgc->lineWidth = 1;
-    miWideDash (dst, pgc, mode, nptInit, pptInit);
-    pgc->lineWidth = 0;
-}
+/***********************************************************

+

+Copyright 1987, 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.

+

+

+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

+

+                        All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and its 

+documentation for any purpose and without fee is hereby granted, 

+provided that the above copyright notice appear in all copies and that

+both that copyright notice and this permission notice appear in 

+supporting documentation, and that the name of Digital not be

+used in advertising or publicity pertaining to distribution of the

+software without specific, written prior permission.  

+

+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING

+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL

+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR

+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

+SOFTWARE.

+

+******************************************************************/

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <X11/X.h>

+

+#include "misc.h"

+#include "scrnintstr.h"

+#include "gcstruct.h"

+#include "windowstr.h"

+#include "pixmap.h"

+#include "mi.h"

+#include "miline.h"

+

+/* Draw lineSolid, fillStyle-independent zero width lines.

+ *

+ * Must keep X and Y coordinates in "ints" at least until after they're

+ * translated and clipped to accomodate CoordModePrevious lines with very

+ * large coordinates.

+ *

+ * Draws the same pixels regardless of sign(dx) or sign(dy).

+ *

+ * Ken Whaley

+ *

+ */

+

+/* largest positive value that can fit into a component of a point.

+ * Assumes that the point structure is {type x, y;} where type is

+ * a signed type.

+ */

+#define MAX_COORDINATE ((1 << (((sizeof(DDXPointRec) >> 1) << 3) - 1)) - 1)

+

+#define MI_OUTPUT_POINT(xx, yy)\

+{\

+    if ( !new_span && yy == current_y)\

+    {\

+        if (xx < spans->x)\

+	    spans->x = xx;\

+	++*widths;\

+    }\

+    else\

+    {\

+        ++Nspans;\

+	++spans;\

+	++widths;\

+	spans->x = xx;\

+	spans->y = yy;\

+	*widths = 1;\

+	current_y = yy;\

+        new_span = FALSE;\

+    }\

+}

+

+void

+miZeroLine(

+    DrawablePtr pDraw,

+    GCPtr	pGC,

+    int		mode,		/* Origin or Previous */

+    int		npt,		/* number of points */

+    DDXPointPtr pptInit)

+{

+    int Nspans, current_y = 0;

+    DDXPointPtr ppt; 

+    DDXPointPtr pspanInit, spans;

+    int *pwidthInit, *widths, list_len;

+    int xleft, ytop, xright, ybottom;

+    int new_x1, new_y1, new_x2, new_y2;

+    int x = 0, y = 0, x1, y1, x2, y2, xstart, ystart;

+    int oc1, oc2;

+    int result;

+    int pt1_clipped, pt2_clipped = 0;

+    Bool new_span;

+    int signdx, signdy;

+    int clipdx, clipdy;

+    int width, height;

+    int adx, ady;

+    int octant;

+    unsigned int bias = miGetZeroLineBias(pDraw->pScreen);

+    int e, e1, e2, e3;	/* Bresenham error terms */

+    int length;		/* length of lines == # of pixels on major axis */

+

+    xleft   = pDraw->x;

+    ytop    = pDraw->y;

+    xright  = pDraw->x + pDraw->width - 1;

+    ybottom = pDraw->y + pDraw->height - 1;

+

+    if (!pGC->miTranslate)

+    {

+	/* do everything in drawable-relative coordinates */

+	xleft    = 0;

+	ytop     = 0;

+	xright  -= pDraw->x;

+	ybottom -= pDraw->y;

+    }

+

+    /* it doesn't matter whether we're in drawable or screen coordinates,

+     * FillSpans simply cannot take starting coordinates outside of the

+     * range of a DDXPointRec component.

+     */

+    if (xright > MAX_COORDINATE)

+	xright = MAX_COORDINATE;

+    if (ybottom > MAX_COORDINATE)

+	ybottom = MAX_COORDINATE;

+

+    /* since we're clipping to the drawable's boundaries & coordinate

+     * space boundaries, we're guaranteed that the larger of width/height

+     * is the longest span we'll need to output

+     */

+    width = xright - xleft + 1;

+    height = ybottom - ytop + 1;

+    list_len = (height >= width) ? height : width;

+    pspanInit = malloc(list_len * sizeof(DDXPointRec));

+    pwidthInit = malloc(list_len * sizeof(int));

+    if (!pspanInit || !pwidthInit)

+	return;

+

+    Nspans = 0;

+    new_span = TRUE;

+    spans  = pspanInit - 1;

+    widths = pwidthInit - 1;

+    ppt = pptInit;

+

+    xstart = ppt->x;

+    ystart = ppt->y;

+    if (pGC->miTranslate)

+    {

+	xstart += pDraw->x;

+	ystart += pDraw->y;

+    }

+    

+    /* x2, y2, oc2 copied to x1, y1, oc1 at top of loop to simplify

+     * iteration logic

+     */

+    x2 = xstart;

+    y2 = ystart;

+    oc2 = 0;

+    MIOUTCODES(oc2, x2, y2, xleft, ytop, xright, ybottom);

+

+    while (--npt > 0)

+    {

+	if (Nspans > 0)

+	    (*pGC->ops->FillSpans)(pDraw, pGC, Nspans, pspanInit,

+				   pwidthInit, FALSE);

+	Nspans = 0;

+	new_span = TRUE;

+	spans  = pspanInit - 1;

+	widths = pwidthInit - 1;

+

+	x1  = x2;

+	y1  = y2;

+	oc1 = oc2;

+	++ppt;

+

+	x2 = ppt->x;

+	y2 = ppt->y;

+	if (pGC->miTranslate && (mode != CoordModePrevious))

+	{

+	    x2 += pDraw->x;

+	    y2 += pDraw->y;

+	}

+	else if (mode == CoordModePrevious)

+	{

+	    x2 += x1;

+	    y2 += y1;

+	}

+

+	oc2 = 0;

+	MIOUTCODES(oc2, x2, y2, xleft, ytop, xright, ybottom);

+

+	CalcLineDeltas(x1, y1, x2, y2, adx, ady, signdx, signdy, 1, 1, octant);

+

+	if (adx > ady)

+	{

+	    e1 = ady << 1;

+	    e2 = e1 - (adx << 1);

+	    e  = e1 - adx;

+	    length  = adx;	/* don't draw endpoint in main loop */

+

+	    FIXUP_ERROR(e, octant, bias);

+

+	    new_x1 = x1;

+	    new_y1 = y1;

+	    new_x2 = x2;

+	    new_y2 = y2;

+	    pt1_clipped = 0;

+	    pt2_clipped = 0;

+

+	    if ((oc1 | oc2) != 0)

+	    {

+		result = miZeroClipLine(xleft, ytop, xright, ybottom,

+					&new_x1, &new_y1, &new_x2, &new_y2,

+					adx, ady,

+					&pt1_clipped, &pt2_clipped,

+					octant, bias, oc1, oc2);

+		if (result == -1)

+		    continue;

+

+		length = abs(new_x2 - new_x1);

+

+		/* if we've clipped the endpoint, always draw the full length

+		 * of the segment, because then the capstyle doesn't matter 

+		 */

+		if (pt2_clipped)

+		    length++;

+

+		if (pt1_clipped)

+		{

+		    /* must calculate new error terms */

+		    clipdx = abs(new_x1 - x1);

+		    clipdy = abs(new_y1 - y1);

+		    e += (clipdy * e2) + ((clipdx - clipdy) * e1);

+		}

+	    }

+

+	    /* draw the segment */

+

+	    x = new_x1;

+	    y = new_y1;

+	    

+	    e3 = e2 - e1;

+	    e  = e - e1;

+

+	    while (length--)

+	    {

+		MI_OUTPUT_POINT(x, y);

+		e += e1;

+		if (e >= 0)

+		{

+		    y += signdy;

+		    e += e3;

+		}

+		x += signdx;

+	    }

+	}

+	else    /* Y major line */

+	{

+	    e1 = adx << 1;

+	    e2 = e1 - (ady << 1);

+	    e  = e1 - ady;

+	    length  = ady;	/* don't draw endpoint in main loop */

+

+	    SetYMajorOctant(octant);

+	    FIXUP_ERROR(e, octant, bias);

+

+	    new_x1 = x1;

+	    new_y1 = y1;

+	    new_x2 = x2;

+	    new_y2 = y2;

+	    pt1_clipped = 0;

+	    pt2_clipped = 0;

+

+	    if ((oc1 | oc2) != 0)

+	    {

+		result = miZeroClipLine(xleft, ytop, xright, ybottom,

+					&new_x1, &new_y1, &new_x2, &new_y2,

+					adx, ady,

+					&pt1_clipped, &pt2_clipped,

+					octant, bias, oc1, oc2);

+		if (result == -1)

+		    continue;

+

+		length = abs(new_y2 - new_y1);

+

+		/* if we've clipped the endpoint, always draw the full length

+		 * of the segment, because then the capstyle doesn't matter 

+		 */

+		if (pt2_clipped)

+		    length++;

+

+		if (pt1_clipped)

+		{

+		    /* must calculate new error terms */

+		    clipdx = abs(new_x1 - x1);

+		    clipdy = abs(new_y1 - y1);

+		    e += (clipdx * e2) + ((clipdy - clipdx) * e1);

+		}

+	    }

+

+	    /* draw the segment */

+

+	    x = new_x1;

+	    y = new_y1;

+

+	    e3 = e2 - e1;

+	    e  = e - e1;

+

+	    while (length--)

+	    {

+		MI_OUTPUT_POINT(x, y);

+		e += e1;

+		if (e >= 0)

+		{

+		    x += signdx;

+		    e += e3;

+		}

+		y += signdy;

+	    }

+	}

+    }

+

+    /* only do the capnotlast check on the last segment

+     * and only if the endpoint wasn't clipped.  And then, if the last

+     * point is the same as the first point, do not draw it, unless the

+     * line is degenerate

+     */

+    if ( (! pt2_clipped) && (pGC->capStyle != CapNotLast) &&

+		(((xstart != x2) || (ystart != y2)) || (ppt == pptInit + 1)))

+    {

+	MI_OUTPUT_POINT(x, y);

+    }    

+

+    if (Nspans > 0)

+	(*pGC->ops->FillSpans)(pDraw, pGC, Nspans, pspanInit,

+			       pwidthInit, FALSE);

+

+    free(pwidthInit);

+    free(pspanInit);

+}

+

+void

+miZeroDashLine(

+            DrawablePtr dst,

+            GCPtr pgc,

+            int mode,

+            int nptInit,		/* number of points in polyline */

+            DDXPointRec *pptInit	/* points in the polyline */

+        )

+{

+    /* XXX kludge until real zero-width dash code is written */

+    pgc->lineWidth = 1;

+    miWideDash (dst, pgc, mode, nptInit, pptInit);

+    pgc->lineWidth = 0;

+}