Initial revision

1 files changed, 701 insertions, 0 deletions

diff --git a/ilbm/ilbmline.c b/ilbm/ilbmline.c
new file mode 100644
index 000000000..d831489c5
--- /dev/null
+++ b/ilbm/ilbmline.c
@@ -0,0 +1,701 @@
+/* $XFree86: xc/programs/Xserver/ilbm/ilbmline.c,v 3.1 1998/03/20 21:08:02 hohndel Exp $ */
+/***********************************************************
+
+Copyright (c) 1987  X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+X CONSORTIUM 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 X Consortium 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 X Consortium.
+
+
+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.
+
+******************************************************************/
+/* $XConsortium: ilbmline.c,v 5.18 94/04/17 20:28:26 dpw Exp $ */
+
+/* Modified jun 95 by Geert Uytterhoeven (Geert.Uytterhoeven@cs.kuleuven.ac.be)
+   to use interleaved bitplanes instead of normal bitplanes */
+
+#include "X.h"
+
+#include "gcstruct.h"
+#include "windowstr.h"
+#include "pixmapstr.h"
+#include "regionstr.h"
+#include "scrnintstr.h"
+#include "mistruct.h"
+
+#include "ilbm.h"
+#include "maskbits.h"
+#include "miline.h"
+
+/* single-pixel lines on a color frame buffer
+
+   NON-SLOPED LINES
+   horizontal lines are always drawn left to right; we have to
+move the endpoints right by one after they're swapped.
+   horizontal lines will be confined to a single band of a
+region.  the code finds that band (giving up if the lower
+bound of the band is above the line we're drawing); then it
+finds the first box in that band that contains part of the
+line.  we clip the line to subsequent boxes in that band.
+   vertical lines are always drawn top to bottom (y-increasing.)
+this requires adding one to the y-coordinate of each endpoint
+after swapping.
+
+   SLOPED LINES
+   when clipping a sloped line, we bring the second point inside
+the clipping box, rather than one beyond it, and then add 1 to
+the length of the line before drawing it.  this lets us use
+the same box for finding the outcodes for both endpoints.  since
+the equation for clipping the second endpoint to an edge gives us
+1 beyond the edge, we then have to move the point towards the
+first point by one step on the major axis.
+   eventually, there will be a diagram here to explain what's going
+on.  the method uses Cohen-Sutherland outcodes to determine
+outsideness, and a method similar to Pike's layers for doing the
+actual clipping.
+
+*/
+
+void
+#ifdef POLYSEGMENT
+ilbmSegmentSS(pDrawable, pGC, nseg, pSeg)
+	DrawablePtr		pDrawable;
+	GCPtr		pGC;
+	int				nseg;
+	register xSegment		*pSeg;
+#else
+ilbmLineSS(pDrawable, pGC, mode, npt, pptInit)
+	DrawablePtr pDrawable;
+	GCPtr		pGC;
+	int				mode;				/* Origin or Previous */
+	int				npt;				/* number of points */
+	DDXPointPtr pptInit;
+#endif
+{
+	int nboxInit;
+	register int nbox;
+	BoxPtr pboxInit;
+	register BoxPtr pbox;
+#ifndef POLYSEGMENT
+	register DDXPointPtr ppt;		/* pointer to list of translated points */
+#endif
+
+	unsigned int oc1;				/* outcode of point 1 */
+	unsigned int oc2;				/* outcode of point 2 */
+
+	PixelType *addrlBase;		/* pointer to start of drawable */
+	PixelType *addrl;				/* address of destination pixmap */
+	int nlwidth;				/* width in longwords of destination pixmap */
+	int xorg, yorg;				/* origin of window */
+
+	int adx;				/* abs values of dx and dy */
+	int ady;
+	int signdx;				/* sign of dx and dy */
+	int signdy;
+	int e, e1, e2;				/* bresenham error and increments */
+	int len;						/* length of segment */
+	int axis;						/* major axis */
+	int octant;
+	unsigned int bias = miGetZeroLineBias(pDrawable->pScreen);
+	int depthDst;
+	int d;
+	int auxDst;
+	unsigned char *rrops;
+
+								/* a bunch of temporaries */
+	register int y1, y2;
+	register int x1, x2;
+	RegionPtr cclip;
+
+	cclip = pGC->pCompositeClip;
+	rrops = ((ilbmPrivGC *)(pGC->devPrivates[ilbmGCPrivateIndex].ptr))->rrops;
+	pboxInit = REGION_RECTS(cclip);
+	nboxInit = REGION_NUM_RECTS(cclip);
+
+	ilbmGetPixelWidthAuxDepthAndPointer(pDrawable, nlwidth, auxDst, depthDst,
+													addrlBase);
+
+	xorg = pDrawable->x;
+	yorg = pDrawable->y;
+#ifdef POLYSEGMENT
+	while (nseg--)
+#else
+	ppt = pptInit;
+	x2 = ppt->x + xorg;
+	y2 = ppt->y + yorg;
+	while (--npt)
+#endif
+	{
+		nbox = nboxInit;
+		pbox = pboxInit;
+
+#ifdef POLYSEGMENT
+		x1 = pSeg->x1 + xorg;
+		y1 = pSeg->y1 + yorg;
+		x2 = pSeg->x2 + xorg;
+		y2 = pSeg->y2 + yorg;
+		pSeg++;
+#else
+		x1 = x2;
+		y1 = y2;
+		++ppt;
+		if (mode == CoordModePrevious) {
+			xorg = x1;
+			yorg = y1;
+		}
+		x2 = ppt->x + xorg;
+		y2 = ppt->y + yorg;
+#endif
+
+		if (x1 == x2) /* vertical line */
+		{
+			/* make the line go top to bottom of screen, keeping
+			   endpoint semantics
+			*/
+			if (y1 > y2) {
+				register int tmp;
+
+				tmp = y2;
+				y2 = y1 + 1;
+				y1 = tmp + 1;
+#ifdef POLYSEGMENT
+				if (pGC->capStyle != CapNotLast)
+					y1--;
+#endif
+			}
+#ifdef POLYSEGMENT
+			else if (pGC->capStyle != CapNotLast)
+				y2++;
+#endif
+			/* get to first band that might contain part of line */
+			while ((nbox) && (pbox->y2 <= y1)) {
+				pbox++;
+				nbox--;
+			}
+
+			if (nbox) {
+				/* stop when lower edge of box is beyond end of line */
+				while ((nbox) && (y2 >= pbox->y1)) {
+					if ((x1 >= pbox->x1) && (x1 < pbox->x2)) {
+						int y1t, y2t;
+						/* this box has part of the line in it */
+						y1t = max(y1, pbox->y1);
+						y2t = min(y2, pbox->y2);
+						if (y1t != y2t)
+							ilbmVertS(addrlBase, nlwidth, auxDst, depthDst, x1, y1t,
+										 y2t-y1t, rrops);	/* @@@ NEXT PLANE PASSED @@@ */
+					}
+					nbox--;
+					pbox++;
+				}
+			}
+#ifndef POLYSEGMENT
+			y2 = ppt->y + yorg;
+#endif
+		} else if (y1 == y2) /* horizontal line */ {
+			/* force line from left to right, keeping
+			   endpoint semantics
+			*/
+			if (x1 > x2) {
+				register int tmp;
+
+				tmp = x2;
+				x2 = x1 + 1;
+				x1 = tmp + 1;
+#ifdef POLYSEGMENT
+				if (pGC->capStyle != CapNotLast)
+					x1--;
+#endif
+			}
+#ifdef POLYSEGMENT
+			else if (pGC->capStyle != CapNotLast)
+				x2++;
+#endif
+
+			/* find the correct band */
+			while ((nbox) && (pbox->y2 <= y1)) {
+				pbox++;
+				nbox--;
+			}
+
+			/* try to draw the line, if we haven't gone beyond it */
+			if ((nbox) && (pbox->y1 <= y1)) {
+				int tmp;
+
+				/* when we leave this band, we're done */
+				tmp = pbox->y1;
+				while ((nbox) && (pbox->y1 == tmp)) {
+					int		x1t, x2t;
+
+					if (pbox->x2 <= x1) {
+						/* skip boxes until one might contain start point */
+						nbox--;
+						pbox++;
+						continue;
+					}
+
+					/* stop if left of box is beyond right of line */
+					if (pbox->x1 >= x2) {
+						nbox = 0;
+						break;
+					}
+
+					x1t = max(x1, pbox->x1);
+					x2t = min(x2, pbox->x2);
+					if (x1t != x2t)
+						ilbmHorzS(addrlBase, nlwidth, auxDst, depthDst, x1t, y1,
+									 x2t-x1t, rrops);	/* @@@ NEXT PLANE PASSED @@@ */
+					nbox--;
+					pbox++;
+				}
+			}
+#ifndef POLYSEGMENT
+			x2 = ppt->x + xorg;
+#endif
+		}
+		else		/* sloped line */
+		{
+			CalcLineDeltas(x1, y1, x2, y2, adx, ady,
+				       signdx, signdy, 1, 1, octant);
+
+			if (adx > ady) {
+				axis = X_AXIS;
+				e1 = ady << 1;
+				e2 = e1 - (adx << 1);
+				e = e1 - adx;
+			} else {
+				axis = Y_AXIS;
+				e1 = adx << 1;
+				e2 = e1 - (ady << 1);
+				e = e1 - ady;
+				SetYMajorOctant(octant);
+			}
+
+			FIXUP_ERROR(e, octant, bias);
+
+			/* we have bresenham parameters and two points.
+			   all we have to do now is clip and draw.
+			*/
+
+			while (nbox--) {
+				oc1 = 0;
+				oc2 = 0;
+				OUTCODES(oc1, x1, y1, pbox);
+				OUTCODES(oc2, x2, y2, pbox);
+				if ((oc1 | oc2) == 0) {
+					if (axis == X_AXIS)
+						len = adx;
+					else
+						len = ady;
+#ifdef POLYSEGMENT
+					if (pGC->capStyle != CapNotLast)
+						len++;
+#endif
+					ilbmBresS(addrlBase, nlwidth, auxDst, depthDst, signdx, signdy,
+								 axis, x1, y1, e, e1, e2, len, rrops);	/* @@@ NEXT PLANE PASSED @@@ */
+					break;
+				} else if (oc1 & oc2) {
+					pbox++;
+				} else {
+					int new_x1 = x1, new_y1 = y1, new_x2 = x2, new_y2 = y2;
+					int clip1 = 0, clip2 = 0;
+					int clipdx, clipdy;
+					int err;
+
+					if (miZeroClipLine(pbox->x1, pbox->y1, pbox->x2-1,
+									   pbox->y2-1,
+									   &new_x1, &new_y1, &new_x2, &new_y2,
+									   adx, ady, &clip1, &clip2,
+									   octant, bias, oc1, oc2) == -1) {
+						pbox++;
+						continue;
+					}
+
+					if (axis == X_AXIS)
+						len = abs(new_x2 - new_x1);
+					else
+						len = abs(new_y2 - new_y1);
+#ifdef POLYSEGMENT
+					if (clip2 != 0 || pGC->capStyle != CapNotLast)
+						len++;
+#else
+					len += (clip2 != 0);
+#endif
+					if (len) {
+						/* unwind bresenham error term to first point */
+						if (clip1) {
+							clipdx = abs(new_x1 - x1);
+							clipdy = abs(new_y1 - y1);
+							if (axis == X_AXIS)
+								err = e+((clipdy*e2) + ((clipdx-clipdy)*e1));
+							else
+								err = e+((clipdx*e2) + ((clipdy-clipdx)*e1));
+						}
+						else
+							err = e;
+						ilbmBresS(addrlBase, nlwidth, auxDst, depthDst, signdx,
+									 signdy, axis, new_x1, new_y1, err, e1, e2, len,
+									 rrops);	/* @@@ NEXT PLANE PASSED @@@ */
+					}
+					pbox++;
+				}
+			} /* while (nbox--) */
+		} /* sloped line */
+	} /* while (nline--) */
+
+#ifndef POLYSEGMENT
+
+	/* paint the last point if the end style isn't CapNotLast.
+	   (Assume that a projecting, butt, or round cap that is one
+		pixel wide is the same as the single pixel of the endpoint.)
+	*/
+
+	if ((pGC->capStyle != CapNotLast) &&
+		 ((ppt->x + xorg != pptInit->x + pDrawable->x) ||
+		  (ppt->y + yorg != pptInit->y + pDrawable->y) ||
+		  (ppt == pptInit + 1))) {
+		nbox = nboxInit;
+		pbox = pboxInit;
+		while (nbox--) {
+			if ((x2 >= pbox->x1) && (y2 >= pbox->y1) && (x2 < pbox->x2) &&
+				 (y2 < pbox->y2)) {
+				for (d = 0; d < depthDst; d++) {
+					addrl = ilbmScanline(addrlBase, x2, y2, auxDst);
+					addrlBase += nlwidth;			/* @@@ NEXT PLANE @@@ */
+
+					switch (rrops[d]) {
+						case RROP_BLACK:
+							*addrl &= rmask[x2 & PIM];
+							break;
+						case RROP_WHITE:
+							*addrl |= mask[x2 & PIM];
+							break;
+						case RROP_INVERT:
+							*addrl ^= mask[x2 & PIM];
+							break;
+						case RROP_NOP:
+							break;
+					} /* switch */
+				} /* for (d = ...) */
+				break;
+			} else
+				pbox++;
+		}
+	}
+#endif
+}
+
+/*
+ * Draw dashed 1-pixel lines.
+ */
+
+void
+#ifdef POLYSEGMENT
+ilbmSegmentSD(pDrawable, pGC, nseg, pSeg)
+	DrawablePtr		pDrawable;
+	register GCPtr		pGC;
+	int				nseg;
+	register xSegment		*pSeg;
+#else
+ilbmLineSD(pDrawable, pGC, mode, npt, pptInit)
+	DrawablePtr pDrawable;
+	register GCPtr pGC;
+	int mode;				/* Origin or Previous */
+	int npt;				/* number of points */
+	DDXPointPtr pptInit;
+#endif
+{
+	int nboxInit;
+	register int nbox;
+	BoxPtr pboxInit;
+	register BoxPtr pbox;
+#ifndef POLYSEGMENT
+	register DDXPointPtr ppt;		/* pointer to list of translated points */
+#endif
+
+	register unsigned int oc1;		/* outcode of point 1 */
+	register unsigned int oc2;		/* outcode of point 2 */
+
+	PixelType *addrlBase;		/* address of destination pixmap */
+	PixelType *addrl;
+	int nlwidth;				/* width in longwords of destination pixmap */
+	int auxDst;
+	int depthDst;
+	int xorg, yorg;				/* origin of window */
+
+	int adx;				/* abs values of dx and dy */
+	int ady;
+	int signdx;				/* sign of dx and dy */
+	int signdy;
+	int e, e1, e2;				/* bresenham error and increments */
+	int len;						/* length of segment */
+	int axis;						/* major axis */
+	int octant;
+	unsigned int bias = miGetZeroLineBias(pDrawable->pScreen);
+	int x1, x2, y1, y2;
+	RegionPtr cclip;
+	unsigned char *rrops;
+	unsigned char bgrrops[AFB_MAX_DEPTH];
+	unsigned char   *pDash;
+	int					dashOffset;
+	int					numInDashList;
+	int					dashIndex;
+	int					isDoubleDash;
+	int					dashIndexTmp, dashOffsetTmp;
+	int					unclippedlen;
+	int					d;
+
+	cclip = pGC->pCompositeClip;
+	rrops = ((ilbmPrivGC *)(pGC->devPrivates[ilbmGCPrivateIndex].ptr))->rrops;
+	pboxInit = REGION_RECTS(cclip);
+	nboxInit = REGION_NUM_RECTS(cclip);
+
+   ilbmGetPixelWidthAuxDepthAndPointer(pDrawable, nlwidth, auxDst, depthDst,
+													addrlBase);
+
+	/* compute initial dash values */
+
+	pDash = (unsigned char *) pGC->dash;
+	numInDashList = pGC->numInDashList;
+	isDoubleDash = (pGC->lineStyle == LineDoubleDash);
+	dashIndex = 0;
+	dashOffset = 0;
+	miStepDash ((int)pGC->dashOffset, &dashIndex, pDash,
+				numInDashList, &dashOffset);
+
+	if (isDoubleDash)
+		ilbmReduceRop (pGC->alu, pGC->bgPixel, pGC->planemask, pGC->depth,
+					  bgrrops);
+
+	xorg = pDrawable->x;
+	yorg = pDrawable->y;
+#ifdef POLYSEGMENT
+	while (nseg--)
+#else
+	ppt = pptInit;
+	x2 = ppt->x + xorg;
+	y2 = ppt->y + yorg;
+	while (--npt)
+#endif
+	{
+		nbox = nboxInit;
+		pbox = pboxInit;
+
+#ifdef POLYSEGMENT
+		x1 = pSeg->x1 + xorg;
+		y1 = pSeg->y1 + yorg;
+		x2 = pSeg->x2 + xorg;
+		y2 = pSeg->y2 + yorg;
+		pSeg++;
+#else
+		x1 = x2;
+		y1 = y2;
+		++ppt;
+		if (mode == CoordModePrevious) {
+			xorg = x1;
+			yorg = y1;
+		}
+		x2 = ppt->x + xorg;
+		y2 = ppt->y + yorg;
+#endif
+
+		CalcLineDeltas(x1, y1, x2, y2, adx, ady, signdx, signdy,
+			       1, 1, octant);
+
+		if (adx > ady) {
+			axis = X_AXIS;
+			e1 = ady << 1;
+			e2 = e1 - (adx << 1);
+			e = e1 - adx;
+			unclippedlen = adx;
+		} else {
+			axis = Y_AXIS;
+			e1 = adx << 1;
+			e2 = e1 - (ady << 1);
+			e = e1 - ady;
+			unclippedlen = ady;
+			SetYMajorOctant(octant);
+		}
+
+		FIXUP_ERROR(e, octant, bias);
+
+		/* we have bresenham parameters and two points.
+		   all we have to do now is clip and draw.
+		*/
+
+		while (nbox--) {
+			oc1 = 0;
+			oc2 = 0;
+			OUTCODES(oc1, x1, y1, pbox);
+			OUTCODES(oc2, x2, y2, pbox);
+			if ((oc1 | oc2) == 0) {
+#ifdef POLYSEGMENT
+				if (pGC->capStyle != CapNotLast)
+					unclippedlen++;
+				dashIndexTmp = dashIndex;
+				dashOffsetTmp = dashOffset;
+				ilbmBresD(&dashIndexTmp, pDash, numInDashList, &dashOffsetTmp,
+							 isDoubleDash, addrlBase, nlwidth, auxDst, depthDst,
+							 signdx, signdy, axis, x1, y1, e, e1, e2, unclippedlen,
+							 rrops, bgrrops);	/* @@@ NEXT PLANE PASSED @@@ */
+				break;
+#else
+				ilbmBresD(&dashIndex, pDash, numInDashList, &dashOffset,
+							 isDoubleDash, addrlBase, nlwidth, auxDst, depthDst,
+							 signdx, signdy, axis, x1, y1, e, e1, e2, unclippedlen,
+							 rrops, bgrrops);	/* @@@ NEXT PLANE PASSED @@@ */
+				goto dontStep;
+#endif
+			} else if (oc1 & oc2) {
+				pbox++;
+			} else /* have to clip */ {
+				int new_x1 = x1, new_y1 = y1, new_x2 = x2, new_y2 = y2;
+				int clip1 = 0, clip2 = 0;
+				int clipdx, clipdy;
+				int err;
+
+				if (miZeroClipLine(pbox->x1, pbox->y1, pbox->x2-1, pbox->y2-1,
+								   &new_x1, &new_y1, &new_x2, &new_y2,
+								   adx, ady, &clip1, &clip2,
+								   octant, bias, oc1, oc2) == -1) {
+					pbox++;
+					continue;
+				}
+				dashIndexTmp = dashIndex;
+				dashOffsetTmp = dashOffset;
+				if (clip1) {
+					int dlen;
+
+					if (axis == X_AXIS)
+						dlen = abs(new_x1 - x1);
+					else
+						dlen = abs(new_y1 - y1);
+					miStepDash (dlen, &dashIndexTmp, pDash,
+								numInDashList, &dashOffsetTmp);
+				}
+				if (axis == X_AXIS)
+					len = abs(new_x2 - new_x1);
+				else
+					len = abs(new_y2 - new_y1);
+#ifdef POLYSEGMENT
+				if (clip2 != 0 || pGC->capStyle != CapNotLast)
+					len++;
+#else
+				len += (clip2 != 0);
+#endif
+				if (len) {
+					/* unwind bresenham error term to first point */
+					if (clip1) {
+						clipdx = abs(new_x1 - x1);
+						clipdy = abs(new_y1 - y1);
+						if (axis == X_AXIS)
+							err = e+((clipdy*e2) + ((clipdx-clipdy)*e1));
+						else
+							err = e+((clipdx*e2) + ((clipdy-clipdx)*e1));
+					}
+					else
+						err = e;
+					ilbmBresD(&dashIndexTmp, pDash, numInDashList, &dashOffsetTmp,
+								 isDoubleDash, addrlBase, nlwidth, auxDst, depthDst,
+								 signdx, signdy, axis, new_x1, new_y1, err, e1, e2,
+								 len, rrops, bgrrops);	/* @@@ NEXT PLANE PASSED @@@ */
+				}
+				pbox++;
+			}
+		} /* while (nbox--) */
+#ifndef POLYSEGMENT
+		/*
+		 * walk the dash list around to the next line
+		 */
+		miStepDash (unclippedlen, &dashIndex, pDash,
+					numInDashList, &dashOffset);
+dontStep:		;
+#endif
+	} /* while (nline--) */
+
+#ifndef POLYSEGMENT
+	/* paint the last point if the end style isn't CapNotLast.
+	   (Assume that a projecting, butt, or round cap that is one
+		pixel wide is the same as the single pixel of the endpoint.)
+	*/
+
+	if ((pGC->capStyle != CapNotLast) &&
+		 ((dashIndex & 1) == 0 || isDoubleDash) &&
+		 ((ppt->x + xorg != pptInit->x + pDrawable->x) ||
+		  (ppt->y + yorg != pptInit->y + pDrawable->y) ||
+		  (ppt == pptInit + 1))) {
+		nbox = nboxInit;
+		pbox = pboxInit;
+		while (nbox--) {
+			if ((x2 >= pbox->x1) && (y2 >= pbox->y1) && (x2 < pbox->x2) &&
+				 (y2 < pbox->y2)) {
+				int rop;
+
+				for (d = 0; d < depthDst; d++) {
+					addrl = ilbmScanline(addrlBase, x2, y2, auxDst);
+					addrlBase += nlwidth;			/* @@@ NEXT PLANE @@@ */
+
+					rop = rrops[d];
+					if (dashIndex & 1)
+						rop = bgrrops[d];
+
+					switch (rop) {
+						case RROP_BLACK:
+							*addrl &= rmask[x2 & PIM];
+							break;
+						case RROP_WHITE:
+							*addrl |= mask[x2 & PIM];
+							break;
+
+						case RROP_INVERT:
+							*addrl ^= mask[x2 & PIM];
+							break;
+
+						case RROP_NOP:
+							break;
+					}
+				} /* for (d = ...) */
+				break;
+			} else
+				pbox++;
+		}
+	}
+#endif
+}