Beispiel #1
0
static void
RootlessPutImage(DrawablePtr dst, GCPtr pGC,
                 int depth, int x, int y, int w, int h,
                 int leftPad, int format, char *pBits)
{
    BoxRec box;

    GCOP_UNWRAP(pGC);
    RL_DEBUG_MSG("put image start ");

    RootlessStartDrawing((WindowPtr) dst);
    pGC->ops->PutImage(dst, pGC, depth, x, y, w, h, leftPad, format, pBits);

    box.x1 = x + dst->x;
    box.x2 = box.x1 + w;
    box.y1 = y + dst->y;
    box.y2 = box.y1 + h;

    TRIM_BOX(box, pGC);
    if (BOX_NOT_EMPTY(box))
        RootlessDamageBox((WindowPtr) dst, &box);

    GCOP_WRAP(pGC);
    RL_DEBUG_MSG("put image end\n");
}
Beispiel #2
0
/* changed area is *dest* rect */
static RegionPtr
RootlessCopyPlane(DrawablePtr pSrc, DrawablePtr dst,
                  GCPtr pGC, int srcx, int srcy,
                  int w, int h, int dstx, int dsty, unsigned long plane)
{
    RegionPtr result;
    BoxRec box;

    GCOP_UNWRAP(pGC);

    RL_DEBUG_MSG("copy plane start ");

    if (pSrc->type == DRAWABLE_WINDOW && IsFramedWindow((WindowPtr) pSrc)) {
        RootlessStartDrawing((WindowPtr) pSrc);
    }
    RootlessStartDrawing((WindowPtr) dst);
    result = pGC->ops->CopyPlane(pSrc, dst, pGC, srcx, srcy, w, h,
                                 dstx, dsty, plane);

    box.x1 = dstx + dst->x;
    box.x2 = box.x1 + w;
    box.y1 = dsty + dst->y;
    box.y2 = box.y1 + h;

    TRIM_BOX(box, pGC);
    if (BOX_NOT_EMPTY(box))
        RootlessDamageBox((WindowPtr) dst, &box);

    GCOP_WRAP(pGC);
    RL_DEBUG_MSG("copy plane end\n");
    return result;
}
Beispiel #3
0
static void
ShadowPutImage(DrawablePtr pDraw,
               GCPtr pGC,
               int depth,
               int x, int y, int w, int h,
               int leftPad, int format, char *pImage)
{
    BoxRec box;
    Bool boxNotEmpty = FALSE;

    SHADOW_GC_OP_PROLOGUE(pGC);

    if (IS_VISIBLE(pDraw)) {
        box.x1 = x + pDraw->x;
        box.x2 = box.x1 + w;
        box.y1 = y + pDraw->y;
        box.y2 = box.y1 + h;

        TRIM_BOX(box, pGC);
        if (BOX_NOT_EMPTY(box)) {
            if (pPriv->preRefresh)
                (*pPriv->preRefresh) (pPriv->pScrn, 1, &box);
            boxNotEmpty = TRUE;
        }
    }

    (*pGC->ops->PutImage) (pDraw, pGC, depth, x, y, w, h,
                           leftPad, format, pImage);

    if (boxNotEmpty && pPriv->postRefresh)
        (*pPriv->postRefresh) (pPriv->pScrn, 1, &box);

    SHADOW_GC_OP_EPILOGUE(pGC);

}
Beispiel #4
0
static void
ShadowSetSpans(
    DrawablePtr		pDraw,
    GCPtr		pGC,
    char		*pcharsrc,
    DDXPointPtr 	pptInit,
    int			*pwidthInit,
    int			nspans,
    int			fSorted 
){
    SHADOW_GC_OP_PROLOGUE(pGC);

    if(IS_VISIBLE(pDraw) && nspans) {
	DDXPointPtr ppt = pptInit;
	int *pwidth = pwidthInit;
	int i = nspans;
	BoxRec box;
        Bool boxNotEmpty = FALSE;

	box.x1 = ppt->x;
	box.x2 = box.x1 + *pwidth;
	box.y2 = box.y1 = ppt->y;

	while(--i) {
	   ppt++;
	   pwidth++;
	   if(box.x1 > ppt->x) box.x1 = ppt->x;
	   if(box.x2 < (ppt->x + *pwidth)) 
		box.x2 = ppt->x + *pwidth;
	   if(box.y1 > ppt->y) box.y1 = ppt->y;
	   else if(box.y2 < ppt->y) box.y2 = ppt->y;
	}

	box.y2++;

        if(!pGC->miTranslate) {
           TRANSLATE_BOX(box, pDraw);
        }
        TRIM_BOX(box, pGC);

	if(BOX_NOT_EMPTY(box)) {
           if(pPriv->preRefresh)
	      (*pPriv->preRefresh)(pPriv->pScrn, 1, &box);
           boxNotEmpty = TRUE;
        }

	(*pGC->ops->SetSpans)(pDraw, pGC, pcharsrc, pptInit, 
				pwidthInit, nspans, fSorted);

	if(boxNotEmpty && pPriv->postRefresh)
	   (*pPriv->postRefresh)(pPriv->pScrn, 1, &box);
    } else
	(*pGC->ops->SetSpans)(pDraw, pGC, pcharsrc, pptInit, 
				pwidthInit, nspans, fSorted);

    SHADOW_GC_OP_EPILOGUE(pGC);
}
Beispiel #5
0
static void
RootlessFillSpans(DrawablePtr dst, GCPtr pGC, int nInit,
                  DDXPointPtr pptInit, int *pwidthInit, int sorted)
{
    GC_SAVE(pGC);
    GCOP_UNWRAP(pGC);
    RL_DEBUG_MSG("fill spans start ");

    if (nInit <= 0) {
        pGC->ops->FillSpans(dst, pGC, nInit, pptInit, pwidthInit, sorted);
    }
    else {
        DDXPointPtr ppt = pptInit;
        int *pwidth = pwidthInit;
        int i = nInit;
        BoxRec box;

        box.x1 = ppt->x;
        box.x2 = box.x1 + *pwidth;
        box.y2 = box.y1 = ppt->y;

        while (--i) {
            ppt++;
            pwidth++;
            if (box.x1 > ppt->x)
                box.x1 = ppt->x;
            if (box.x2 < (ppt->x + *pwidth))
                box.x2 = ppt->x + *pwidth;
            if (box.y1 > ppt->y)
                box.y1 = ppt->y;
            else if (box.y2 < ppt->y)
                box.y2 = ppt->y;
        }

        box.y2++;

        RootlessStartDrawing((WindowPtr) dst);

        if (canAccelFill(dst, pGC)) {
            GC_UNSET_PM(pGC, dst);
        }

        pGC->ops->FillSpans(dst, pGC, nInit, pptInit, pwidthInit, sorted);

        TRIM_AND_TRANSLATE_BOX(box, dst, pGC);
        if (BOX_NOT_EMPTY(box))
            RootlessDamageBox((WindowPtr) dst, &box);
    }

    GC_RESTORE(pGC, dst);
    GCOP_WRAP(pGC);
    RL_DEBUG_MSG("fill spans end\n");
}
Beispiel #6
0
static void
ShadowComposite(
    CARD8 op,
    PicturePtr pSrc,
    PicturePtr pMask,
    PicturePtr pDst,
    INT16 xSrc,
    INT16 ySrc,
    INT16 xMask,
    INT16 yMask,
    INT16 xDst,
    INT16 yDst,
    CARD16 width,
    CARD16 height
){
    ScreenPtr pScreen = pDst->pDrawable->pScreen;
    ShadowScreenPtr pPriv = GET_SCREEN_PRIVATE(pScreen);
    PictureScreenPtr ps = GetPictureScreen(pScreen);
    BoxRec box;
    BoxPtr extents;
    Bool boxNotEmpty = FALSE;

    if (pPriv->vtSema
	&& pDst->pDrawable->type == DRAWABLE_WINDOW) {

	box.x1 = pDst->pDrawable->x + xDst;
	box.y1 = pDst->pDrawable->y + yDst;
	box.x2 = box.x1 + width;
	box.y2 = box.y1 + height;

	extents = &pDst->pCompositeClip->extents;
	if(box.x1 < extents->x1) box.x1 = extents->x1;
	if(box.x2 > extents->x2) box.x2 = extents->x2;
	if(box.y1 < extents->y1) box.y1 = extents->y1;
	if(box.y2 > extents->y2) box.y2 = extents->y2;
	
	if (BOX_NOT_EMPTY(box)) {
	    if (pPriv->preRefresh)
		(*pPriv->preRefresh)(pPriv->pScrn, 1, &box);
	    boxNotEmpty = TRUE;
	}
    }
    
    ps->Composite = pPriv->Composite;
    (*ps->Composite)(op, pSrc, pMask, pDst, xSrc, ySrc,
		     xMask, yMask, xDst, yDst, width, height);
    ps->Composite = ShadowComposite;

    if (pPriv->postRefresh && boxNotEmpty) {
        (*pPriv->postRefresh)(pPriv->pScrn, 1, &box);
    }
}
Beispiel #7
0
static void
ShadowPolyPoint(
    DrawablePtr pDraw,
    GCPtr pGC,
    int mode,
    int nptInit,
    xPoint *pptInit 
){
    BoxRec box;
    Bool boxNotEmpty = FALSE;
    
    SHADOW_GC_OP_PROLOGUE(pGC);

    if(IS_VISIBLE(pDraw) && nptInit) {
        xPoint *ppt = pptInit;
        int npt = nptInit;

	box.x2 = box.x1 = pptInit->x;
	box.y2 = box.y1 = pptInit->y;

	/* this could be slow if the points were spread out */

	while(--npt) {
	   ppt++;
	   if(box.x1 > ppt->x) box.x1 = ppt->x;
	   else if(box.x2 < ppt->x) box.x2 = ppt->x;
	   if(box.y1 > ppt->y) box.y1 = ppt->y;
	   else if(box.y2 < ppt->y) box.y2 = ppt->y;
	}

	box.x2++;
	box.y2++;

	TRIM_AND_TRANSLATE_BOX(box, pDraw, pGC);
	if(BOX_NOT_EMPTY(box)) {
           if(pPriv->preRefresh)
	      (*pPriv->preRefresh)(pPriv->pScrn, 1, &box);
           boxNotEmpty = TRUE;
        }
    }
    
    (*pGC->ops->PolyPoint)(pDraw, pGC, mode, nptInit, pptInit);
    
    if(boxNotEmpty && pPriv->postRefresh)
        (*pPriv->postRefresh)(pPriv->pScrn, 1, &box);

    SHADOW_GC_OP_EPILOGUE(pGC);
}
Beispiel #8
0
static void
RootlessSetSpans(DrawablePtr dst, GCPtr pGC, char *pSrc,
                 DDXPointPtr pptInit, int *pwidthInit, int nspans, int sorted)
{
    GCOP_UNWRAP(pGC);
    RL_DEBUG_MSG("set spans start ");

    if (nspans <= 0) {
        pGC->ops->SetSpans(dst, pGC, pSrc, pptInit, pwidthInit, nspans, sorted);
    }
    else {
        DDXPointPtr ppt = pptInit;
        int *pwidth = pwidthInit;
        int i = nspans;
        BoxRec box;

        box.x1 = ppt->x;
        box.x2 = box.x1 + *pwidth;
        box.y2 = box.y1 = ppt->y;

        while (--i) {
            ppt++;
            pwidth++;
            if (box.x1 > ppt->x)
                box.x1 = ppt->x;
            if (box.x2 < (ppt->x + *pwidth))
                box.x2 = ppt->x + *pwidth;
            if (box.y1 > ppt->y)
                box.y1 = ppt->y;
            else if (box.y2 < ppt->y)
                box.y2 = ppt->y;
        }

        box.y2++;

        RootlessStartDrawing((WindowPtr) dst);
        pGC->ops->SetSpans(dst, pGC, pSrc, pptInit, pwidthInit, nspans, sorted);

        TRIM_AND_TRANSLATE_BOX(box, dst, pGC);
        if (BOX_NOT_EMPTY(box))
            RootlessDamageBox((WindowPtr) dst, &box);
    }
    GCOP_WRAP(pGC);
    RL_DEBUG_MSG("set spans end\n");
}
Beispiel #9
0
static RegionPtr
ShadowCopyPlane(
    DrawablePtr	pSrc,
    DrawablePtr	pDst,
    GCPtr pGC,
    int	srcx, int srcy,
    int	width, int height,
    int	dstx, int dsty,
    unsigned long bitPlane 
){
    RegionPtr ret;
    BoxRec box;
    Bool boxNotEmpty = FALSE;
    
    SHADOW_GC_OP_PROLOGUE(pGC);

    if(IS_VISIBLE(pDst)) {
	box.x1 = dstx + pDst->x;
	box.x2 = box.x1 + width;
	box.y1 = dsty + pDst->y;
	box.y2 = box.y1 + height;

	TRIM_BOX(box, pGC);
	if(BOX_NOT_EMPTY(box)) {
           if(pPriv->preRefresh)
	      (*pPriv->preRefresh)(pPriv->pScrn, 1, &box);
           boxNotEmpty = TRUE;
        }
    }
    
    ret = (*pGC->ops->CopyPlane)(pSrc, pDst,
	       pGC, srcx, srcy, width, height, dstx, dsty, bitPlane);
    
    if(boxNotEmpty && pPriv->postRefresh)
        (*pPriv->postRefresh)(pPriv->pScrn, 1, &box);
    
    SHADOW_GC_OP_EPILOGUE(pGC);

    return ret;
}
Beispiel #10
0
/* changed area is *dest* rect */
static RegionPtr
RootlessCopyArea(DrawablePtr pSrc, DrawablePtr dst, GCPtr pGC,
                 int srcx, int srcy, int w, int h, int dstx, int dsty)
{
    RegionPtr result;
    BoxRec box;

    GC_SAVE(pGC);
    GCOP_UNWRAP(pGC);

    RL_DEBUG_MSG("copy area start (src 0x%x, dst 0x%x)", pSrc, dst);

    if (pSrc->type == DRAWABLE_WINDOW && IsFramedWindow((WindowPtr) pSrc)) {
        /* If both source and dest are windows, and we're doing
           a simple copy operation, we can remove the alpha-protecting
           planemask (since source has opaque alpha as well) */

        if (canAccelBlit(pSrc, pGC)) {
            GC_UNSET_PM(pGC, dst);
        }

        RootlessStartDrawing((WindowPtr) pSrc);
    }
    RootlessStartDrawing((WindowPtr) dst);
    result = pGC->ops->CopyArea(pSrc, dst, pGC, srcx, srcy, w, h, dstx, dsty);

    box.x1 = dstx + dst->x;
    box.x2 = box.x1 + w;
    box.y1 = dsty + dst->y;
    box.y2 = box.y1 + h;

    TRIM_BOX(box, pGC);
    if (BOX_NOT_EMPTY(box))
        RootlessDamageBox((WindowPtr) dst, &box);

    GC_RESTORE(pGC, dst);
    GCOP_WRAP(pGC);
    RL_DEBUG_MSG("copy area end\n");
    return result;
}
Beispiel #11
0
static void
ShadowPolylines(
    DrawablePtr pDraw,
    GCPtr	pGC,
    int		mode,		
    int		nptInit,		
    DDXPointPtr pptInit 
){
    BoxRec box;
    Bool boxNotEmpty = FALSE;
    
    SHADOW_GC_OP_PROLOGUE(pGC);

    if(IS_VISIBLE(pDraw) && nptInit) {
        DDXPointPtr ppt = pptInit;
        int npt = nptInit;
	int extra = pGC->lineWidth >> 1;

	box.x2 = box.x1 = pptInit->x;
	box.y2 = box.y1 = pptInit->y;

	if(npt > 1) {
	   if(pGC->joinStyle == JoinMiter)
		extra = 6 * pGC->lineWidth;
	   else if(pGC->capStyle == CapProjecting)
		extra = pGC->lineWidth;
        }

	if(mode == CoordModePrevious) {
	   int x = box.x1;
	   int y = box.y1;
	   while(--npt) {
		ppt++;
		x += ppt->x;
		y += ppt->y;
		if(box.x1 > x) box.x1 = x;
		else if(box.x2 < x) box.x2 = x;
		if(box.y1 > y) box.y1 = y;
		else if(box.y2 < y) box.y2 = y;
	    }
	} else {
	   while(--npt) {
		ppt++;
		if(box.x1 > ppt->x) box.x1 = ppt->x;
		else if(box.x2 < ppt->x) box.x2 = ppt->x;
		if(box.y1 > ppt->y) box.y1 = ppt->y;
		else if(box.y2 < ppt->y) box.y2 = ppt->y;
	    }
	}

	box.x2++;
	box.y2++;

	if(extra) {
	   box.x1 -= extra;
	   box.x2 += extra;
	   box.y1 -= extra;
	   box.y2 += extra;
        }

	TRIM_AND_TRANSLATE_BOX(box, pDraw, pGC);
	if(BOX_NOT_EMPTY(box)) {
           if(pPriv->preRefresh)
	      (*pPriv->preRefresh)(pPriv->pScrn, 1, &box);
           boxNotEmpty = TRUE;
        }
    }
Beispiel #12
0
/* changed area is box around each line */
static void
RootlessPolylines(DrawablePtr dst, GCPtr pGC,
                  int mode, int npt, DDXPointPtr pptInit)
{
    GCOP_UNWRAP(pGC);
    RL_DEBUG_MSG("poly lines start ");

    RootlessStartDrawing((WindowPtr) dst);
    pGC->ops->Polylines(dst, pGC, mode, npt, pptInit);

    if (npt > 0) {
        BoxRec box;
        int extra = pGC->lineWidth >> 1;

        box.x2 = box.x1 = pptInit->x;
        box.y2 = box.y1 = pptInit->y;

        if (npt > 1) {
            if (pGC->joinStyle == JoinMiter)
                extra = 6 * pGC->lineWidth;
            else if (pGC->capStyle == CapProjecting)
                extra = pGC->lineWidth;
        }

        if (mode == CoordModePrevious) {
            int x = box.x1;
            int y = box.y1;

            while (--npt) {
                pptInit++;
                x += pptInit->x;
                y += pptInit->y;
                if (box.x1 > x)
                    box.x1 = x;
                else if (box.x2 < x)
                    box.x2 = x;
                if (box.y1 > y)
                    box.y1 = y;
                else if (box.y2 < y)
                    box.y2 = y;
            }
        }
        else {
            while (--npt) {
                pptInit++;
                if (box.x1 > pptInit->x)
                    box.x1 = pptInit->x;
                else if (box.x2 < pptInit->x)
                    box.x2 = pptInit->x;
                if (box.y1 > pptInit->y)
                    box.y1 = pptInit->y;
                else if (box.y2 < pptInit->y)
                    box.y2 = pptInit->y;
            }
        }

        box.x2++;
        box.y2++;

        if (extra) {
            box.x1 -= extra;
            box.x2 += extra;
            box.y1 -= extra;
            box.y2 += extra;
        }

        TRIM_AND_TRANSLATE_BOX(box, dst, pGC);
        if (BOX_NOT_EMPTY(box))
            RootlessDamageBox((WindowPtr) dst, &box);
    }
Beispiel #13
0
/* changed area is box around all points */
static void
RootlessPolyPoint(DrawablePtr dst, GCPtr pGC,
                  int mode, int npt, DDXPointPtr pptInit)
{
    GCOP_UNWRAP(pGC);
    RL_DEBUG_MSG("polypoint start ");

    RootlessStartDrawing((WindowPtr) dst);
    pGC->ops->PolyPoint(dst, pGC, mode, npt, pptInit);

    if (npt > 0) {
#if ROOTLESS_CHANGED_AREA==0
        // box per point
        BoxRec box;

        while (npt) {
            box.x1 = pptInit->x;
            box.y1 = pptInit->y;
            box.x2 = box.x1 + 1;
            box.y2 = box.y1 + 1;

            TRIM_AND_TRANSLATE_BOX(box, dst, pGC);
            if (BOX_NOT_EMPTY(box))
                RootlessDamageBox((WindowPtr) dst, &box);

            npt--;
            pptInit++;
        }

#elif ROOTLESS_CHANGED_AREA==1
        // one big box
        BoxRec box;

        box.x2 = box.x1 = pptInit->x;
        box.y2 = box.y1 = pptInit->y;
        while (--npt) {
            pptInit++;
            if (box.x1 > pptInit->x)
                box.x1 = pptInit->x;
            else if (box.x2 < pptInit->x)
                box.x2 = pptInit->x;
            if (box.y1 > pptInit->y)
                box.y1 = pptInit->y;
            else if (box.y2 < pptInit->y)
                box.y2 = pptInit->y;
        }

        box.x2++;
        box.y2++;

        TRIM_AND_TRANSLATE_BOX(box, dst, pGC);
        if (BOX_NOT_EMPTY(box))
            RootlessDamageBox((WindowPtr) dst, &box);

#elif ROOTLESS_CHANGED_AREA==2
        // clever(?) method: accumulate point in 20-pixel radius
        BoxRec box;
        int firstx, firsty;

        box.x2 = box.x1 = firstx = pptInit->x;
        box.y2 = box.y1 = firsty = pptInit->y;
        while (--npt) {
            pptInit++;
            if (abs(pptInit->x - firstx) > 20 || abs(pptInit->y - firsty) > 20) {
                box.x2++;
                box.y2++;
                TRIM_AND_TRANSLATE_BOX(box, dst, pGC);
                if (BOX_NOT_EMPTY(box))
                    RootlessDamageBox((WindowPtr) dst, &box);
                box.x2 = box.x1 = firstx = pptInit->x;
                box.y2 = box.y1 = firsty = pptInit->y;
            }
            else {
                if (box.x1 > pptInit->x)
                    box.x1 = pptInit->x;
                else if (box.x2 < pptInit->x)
                    box.x2 = pptInit->x;
                if (box.y1 > pptInit->y)
                    box.y1 = pptInit->y;
                else if (box.y2 < pptInit->y)
                    box.y2 = pptInit->y;
            }
        }
        box.x2++;
        box.y2++;
        TRIM_AND_TRANSLATE_BOX(box, dst, pGC);
        if (BOX_NOT_EMPTY(box))
            RootlessDamageBox((WindowPtr) dst, &box);
#endif                          /* ROOTLESS_CHANGED_AREA */
    }

    GCOP_WRAP(pGC);
    RL_DEBUG_MSG("polypoint end\n");
}
Beispiel #14
0
static void
SMI_Polylines(DrawablePtr pDraw, GCPtr pGC, int mode, int npt,
			  DDXPointPtr pptInit)
{
	XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
	ScrnInfoPtr pScrn = infoRec->pScrn;
	SMIPtr pSmi = SMIPTR(pScrn);

	ENTER_PROC("SMI_Polylines");

	/* Call the original Polylines function. */
	pGC->ops->Polylines = XAAFallbackOps.Polylines;
	(*pGC->ops->Polylines)(pDraw, pGC, mode, npt, pptInit);
	pGC->ops->Polylines = SMI_Polylines;

	if (IS_VISIBLE(pDraw) && npt)
	{
		/* Allocate a temporary buffer for all segments of the polyline. */
		BoxPtr pBox = xnfcalloc(sizeof(BoxRec), npt);
		int extra = pGC->lineWidth >> 1, box;

		if (npt > 1)
		{
			/* Adjust the extra space required per polyline segment. */
			if (pGC->joinStyle == JoinMiter)
			{
				extra = 6 * pGC->lineWidth;
			}
			else if (pGC->capStyle == CapProjecting)
			{
				extra = pGC->lineWidth;
			}
		}

		for (box = 0; --npt;)
		{
			/* Setup the bounding box for one polyline segment. */
			pBox[box].x1 = pptInit->x;
			pBox[box].y1 = pptInit->y;
			pptInit++;
			pBox[box].x2 = pptInit->x;
			pBox[box].y2 = pptInit->y;
			if (mode == CoordModePrevious)
			{
				pBox[box].x2 += pBox[box].x1;
				pBox[box].y2 += pBox[box].y1;
			}

			/* Sort coordinates. */
			if (pBox[box].x1 > pBox[box].x2)
			{
				int tmp = pBox[box].x1;
				pBox[box].x1 = pBox[box].x2;
				pBox[box].x2 = tmp;
			}
			if (pBox[box].y1 > pBox[box].y2)
			{
				int tmp = pBox[box].y1;
				pBox[box].y1 = pBox[box].y2;
				pBox[box].y2 = tmp;
			}

			/* Add extra space required for each polyline segment. */
			pBox[box].x1 -= extra;
			pBox[box].y1 -= extra;
			pBox[box].x2 += extra + 1;
			pBox[box].y2 += extra + 1;

			/* See if we need to draw this polyline segment. */
			TRANSLATE_BOX(pBox[box], pDraw);
			TRIM_BOX(pBox[box], pGC);
			if (BOX_NOT_EMPTY(pBox[box]))
			{
				box++;
			}
		}

		if (box)
		{
			/* Refresh all polyline segments now. */
			SMI_RefreshArea(pScrn, box, pBox);
		}

		/* Free the temporary buffer. */
		xfree(pBox);
	}