Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 859 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/afb/afbtile.c b/nx-X11/programs/Xserver/afb/afbtile.c
new file mode 100644
index 000000000..11d76abdf
--- /dev/null
+++ b/nx-X11/programs/Xserver/afb/afbtile.c
@@ -0,0 +1,859 @@
+/* $XFree86: xc/programs/Xserver/afb/afbtile.c,v 3.3tsi Exp $ */
+/* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */
+/***********************************************************
+
+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: afbtile.c,v 5.8 94/04/17 20:28:36 dpw Exp $ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h>
+
+#include "windowstr.h"
+#include "regionstr.h"
+#include "pixmapstr.h"
+#include "scrnintstr.h"
+
+#include "afb.h"
+
+#include "maskbits.h"
+
+#include "mergerop.h"
+/*
+
+   the boxes are already translated.
+
+   NOTE:
+   iy = ++iy < tileHeight ? iy : 0
+is equivalent to iy%= tileheight, and saves a division.
+*/
+
+/*
+	tile area with a PPW bit wide pixmap
+*/
+void
+MROP_NAME(afbTileAreaPPW)(pDraw, nbox, pbox, alu, ptile, planemask)
+	DrawablePtr pDraw;
+	int nbox;
+	BoxPtr pbox;
+	int alu;
+	PixmapPtr ptile;
+	unsigned long planemask;
+{
+	register PixelType *psrc;
+						/* pointer to bits in tile, if needed */
+	int tileHeight;		/* height of the tile */
+	register PixelType srcpix;
+	int nlwidth;		/* width in longwords of the drawable */
+	int w;				/* width of current box */
+	MROP_DECLARE_REG ()
+	register int h;		/* height of current box */
+	register int nlw;		/* loop version of nlwMiddle */
+	register PixelType *p;		/* pointer to bits we're writing */
+	int sizeDst;
+	int depthDst;
+	register int d;
+	PixelType startmask;
+	PixelType endmask;		/* masks for reggedy bits at either end of line */
+	int nlwMiddle;		/* number of longwords between sides of boxes */
+	int nlwExtra;		/* to get from right of box to left of next span */
+	register int iy;		/* index of current scanline in tile */
+	PixelType *pbits;		/* pointer to start of drawable */
+	PixelType *saveP;
+	PixelType *pSaveSrc;
+	int saveH;
+	int saveIY;
+
+	afbGetPixelWidthSizeDepthAndPointer(pDraw, nlwidth, sizeDst, depthDst,
+													 pbits);
+
+	MROP_INITIALIZE(alu,~0)
+
+	tileHeight = ptile->drawable.height;
+	pSaveSrc = (PixelType *)(ptile->devPrivate.ptr);
+
+	while (nbox--) {
+		w = pbox->x2 - pbox->x1;
+		saveH = pbox->y2 - pbox->y1;
+		saveIY = pbox->y1 % tileHeight;
+		saveP = afbScanline(pbits, pbox->x1, pbox->y1, nlwidth);
+		psrc = pSaveSrc;
+
+		if (((pbox->x1 & PIM) + w) < PPW) {
+			maskpartialbits(pbox->x1, w, startmask);
+			nlwExtra = nlwidth;
+			for (d = 0; d < depthDst; d++, saveP += sizeDst, psrc += tileHeight) {	/* @@@ NEXT PLANE @@@ */
+				if (!(planemask & (1 << d)))
+					continue;
+
+				p = saveP;
+				h = saveH;
+				iy = saveIY;
+
+				while (h--) {
+					srcpix = psrc[iy];
+					iy++;
+					if (iy == tileHeight)
+						iy = 0;
+					*p = MROP_MASK(srcpix,*p,startmask);
+					afbScanlineInc(p, nlwExtra);
+				}
+			}
+		} else {
+			maskbits(pbox->x1, w, startmask, endmask, nlwMiddle);
+
+			for (d = 0; d < depthDst; d++, saveP += sizeDst, psrc += tileHeight) {	/* @@@ NEXT PLANE @@@ */
+				if (!(planemask & (1 << d)))
+					continue;
+
+				p = saveP;
+				h = saveH;
+				iy = saveIY;
+				nlwExtra = nlwidth - nlwMiddle;
+
+				if (startmask && endmask) {
+					nlwExtra -= 1;
+					while (h--) {
+						srcpix = psrc[iy];
+						iy++;
+						if (iy == tileHeight)
+							iy = 0;
+						nlw = nlwMiddle;
+						*p = MROP_MASK (srcpix,*p,startmask);
+						p++;
+						while (nlw--) {
+							*p = MROP_SOLID(srcpix,*p);
+							p++;
+						}
+
+						*p = MROP_MASK(srcpix,*p,endmask);
+						afbScanlineInc(p, nlwExtra);
+					}
+				} else if (startmask && !endmask) {
+					nlwExtra -= 1;
+					while (h--) {
+						srcpix = psrc[iy];
+						iy++;
+						if (iy == tileHeight)
+							iy = 0;
+						nlw = nlwMiddle;
+						*p = MROP_MASK(srcpix,*p,startmask);
+						p++;
+						while (nlw--) {
+							*p = MROP_SOLID(srcpix,*p);
+							p++;
+						}
+						afbScanlineInc(p, nlwExtra);
+					}
+				} else if (!startmask && endmask) {
+					while (h--) {
+						srcpix = psrc[iy];
+						iy++;
+						if (iy == tileHeight)
+							iy = 0;
+						nlw = nlwMiddle;
+						while (nlw--) {
+							*p = MROP_SOLID(srcpix,*p);
+							p++;
+						}
+
+						*p = MROP_MASK(srcpix,*p,endmask);
+						afbScanlineInc(p, nlwExtra);
+					}
+				} else { /* no ragged bits at either end */
+					while (h--) {
+						srcpix = psrc[iy];
+						iy++;
+						if (iy == tileHeight)
+							iy = 0;
+						nlw = nlwMiddle;
+						while (nlw--) {
+							*p = MROP_SOLID (srcpix,*p);
+							p++;
+						}
+						afbScanlineInc(p, nlwExtra);
+					}
+				}
+			} /* for (d = ...) */
+		}
+		pbox++;
+	}
+}
+
+void
+MROP_NAME(afbTileArea)(pDraw, nbox, pbox, alu, pTile, xOff, yOff, planemask)
+	DrawablePtr pDraw;
+	int nbox;
+	BoxPtr pbox;
+	int alu;
+	PixmapPtr pTile;
+	int xOff;
+	int yOff;
+	unsigned long planemask;
+{
+	register PixelType *psrc;
+						/* pointer to bits in tile, if needed */
+	int nlwidth;		/* width in longwords of the drawable */
+	MROP_DECLARE_REG ()
+	register int h;		/* height of current box */
+	register PixelType *pdst;		/* pointer to bits we're writing */
+	register PixelType tmpsrc;
+#if (MROP) != Mcopy
+	register PixelType tmpdst;
+#endif
+	int sizeDst;
+	int depthDst;
+	int sizeTile;
+	int tileLine;
+	int iline;
+	int w, width, x, xSrc, ySrc, srcStartOver, nend;
+	int tlwidth, rem, tileWidth, tileHeight, endinc;
+	int saveW;
+	PixelType *psrcT;
+	int d;
+	int nstart;
+	PixelType startmask;
+	PixelType endmask;		/* masks for reggedy bits at either end of line */
+	int nlMiddle;		/* number of longwords between sides of boxes */
+	int iy;
+	PixelType *pBase;		/* pointer to start of drawable */
+	PixelType *saveP;
+	PixelType *pStartDst;
+	PixelType *pStartTile;
+	int saveH;
+
+	afbGetPixelWidthSizeDepthAndPointer(pDraw, nlwidth, sizeDst, depthDst,
+													 pBase);
+
+	MROP_INITIALIZE(alu,~0)
+
+	tileHeight = pTile->drawable.height;
+	tileWidth = pTile->drawable.width;
+	tlwidth = pTile->devKind / sizeof (PixelType);
+	sizeTile = tlwidth * tileHeight;
+
+	xSrc = pDraw->x + ((xOff % tileWidth) - tileWidth);
+	ySrc = pDraw->y + ((yOff % tileHeight) - tileHeight);
+
+	while (nbox--) {
+		saveW = pbox->x2 - pbox->x1;
+		iline = (pbox->y1 - ySrc) % tileHeight;
+		psrcT = (PixelType *) pTile->devPrivate.ptr;
+		tileLine = iline * tlwidth;
+		saveH = pbox->y2 - pbox->y1;
+		saveP = afbScanline(pBase, pbox->x1, pbox->y1, nlwidth);
+
+		for (d = 0; d < depthDst; d++, psrcT += sizeTile, saveP += sizeDst) {	/* @@@ NEXT PLANE @@@ */
+			if (!(planemask & (1 << d)))
+				continue;
+
+			h = saveH;
+			pStartDst = saveP;
+			pStartTile = psrcT + tileLine;
+			iy = iline;
+
+			while (h--) {
+				x = pbox->x1;
+				width = saveW;
+				pdst = pStartDst;
+				while(width > 0) {
+					psrc = pStartTile;
+					w = min(tileWidth, width);
+					if((rem = (x - xSrc) % tileWidth) != 0) {
+						/* if we're in the middle of the tile, get
+						   as many bits as will finish the span, or
+						   as many as will get to the left edge of the tile,
+						   or a longword worth, starting at the appropriate
+						   offset in the tile.
+						*/
+						w = min(min(tileWidth - rem, width), BITMAP_SCANLINE_PAD);
+						endinc = rem / BITMAP_SCANLINE_PAD;
+
+						getbits ((psrc+endinc), (rem&PIM), w, tmpsrc);
+#if (MROP) != Mcopy
+						getbits (pdst, (x & PIM), w, tmpdst);
+						tmpsrc = DoMergeRop (tmpsrc, tmpdst);
+#endif
+						putbits (tmpsrc, (x & PIM), w, pdst);
+
+						if((x & PIM) + w >= PPW)
+							pdst++;
+					} else if(((x & PIM) + w) < PPW) {
+						/* doing < PPW bits is easy, and worth special-casing */
+						tmpsrc = *psrc;
+#if (MROP) != Mcopy
+						getbits (pdst, (x & PIM), w, tmpdst);
+						tmpsrc = DoMergeRop (tmpsrc, tmpdst);
+#endif
+						putbits (tmpsrc, (x & PIM), w, pdst);
+					} else {
+						/* start at the left edge of the tile,
+						   and put down as much as we can
+						*/
+						maskbits(x, w, startmask, endmask, nlMiddle);
+
+						if (startmask)
+							nstart = PPW - (x & PIM);
+						else
+							nstart = 0;
+						if (endmask)
+							nend = (x + w)  & PIM;
+						else
+							nend = 0;
+
+						srcStartOver = nstart > PLST;
+
+						if(startmask) {
+							tmpsrc = *psrc;
+#if (MROP) != Mcopy
+							getbits (pdst, (x & PIM), nstart, tmpdst);
+							tmpsrc = DoMergeRop (tmpsrc, tmpdst);
+#endif
+							putbits (tmpsrc, (x & PIM), nstart, pdst);
+							pdst++;
+							if(srcStartOver)
+								psrc++;
+						}
+
+						while(nlMiddle--) {
+							getbits (psrc, nstart, PPW, tmpsrc);
+#if (MROP) != Mcopy
+							tmpdst = *pdst;
+							tmpsrc = DoMergeRop (tmpsrc, tmpdst);
+#endif
+							*pdst++ = tmpsrc;
+							/*putbits (tmpsrc, 0, PPW, pdst);
+							pdst++;*/
+							psrc++;
+						}
+
+						if(endmask) {
+							getbits (psrc, nstart, nend, tmpsrc);
+#if (MROP) != Mcopy
+							tmpdst = *pdst;
+							tmpsrc = DoMergeRop (tmpsrc, tmpdst);
+#endif
+							putbits (tmpsrc, 0, nend, pdst);
+						}
+					 }
+					 x += w;
+					 width -= w;
+				} /* while (width > 0) */
+
+				pStartDst += nlwidth;
+				if (++iy >= tileHeight) {
+					iy = 0;
+					pStartTile = psrcT;
+				} else
+					pStartTile += tlwidth;
+
+			} /* while (h) */
+		} /* for (d = ... ) */
+		pbox++;
+	} /* for each box */
+}
+
+void
+MROP_NAME(afbOpaqueStippleAreaPPW)(pDraw, nbox, pbox, alu, ptile,
+								   rropsOS, planemask)
+	DrawablePtr pDraw;
+	int nbox;
+	BoxPtr pbox;
+	int alu;
+	PixmapPtr ptile;
+	register unsigned char *rropsOS;
+	unsigned long planemask;
+{
+	register PixelType *psrc;
+						/* pointer to bits in tile, if needed */
+	int tileHeight;		/* height of the tile */
+	register PixelType srcpix = 0;
+	int nlwidth;		/* width in longwords of the drawable */
+	int w;				/* width of current box */
+	MROP_DECLARE_REG ()
+	register int h;		/* height of current box */
+	register int nlw;		/* loop version of nlwMiddle */
+	register PixelType *p;		/* pointer to bits we're writing */
+	int sizeDst;
+	int depthDst;
+	register int d;
+	PixelType startmask;
+	PixelType endmask;		/* masks for reggedy bits at either end of line */
+	int nlwMiddle;		/* number of longwords between sides of boxes */
+	int nlwExtra;		/* to get from right of box to left of next span */
+	register int iy;		/* index of current scanline in tile */
+	PixelType *pbits;		/* pointer to start of drawable */
+	PixelType *saveP;
+	int saveH;
+	int saveIY;
+
+	afbGetPixelWidthSizeDepthAndPointer(pDraw, nlwidth, sizeDst, depthDst,
+													 pbits);
+
+	MROP_INITIALIZE(alu,~0)
+
+	tileHeight = ptile->drawable.height;
+	psrc = (PixelType *)(ptile->devPrivate.ptr);
+
+	while (nbox--) {
+		w = pbox->x2 - pbox->x1;
+		saveH = pbox->y2 - pbox->y1;
+		saveIY = pbox->y1 % tileHeight;
+		saveP = afbScanline(pbits, pbox->x1, pbox->y1, nlwidth);
+
+		if ( ((pbox->x1 & PIM) + w) < PPW) {
+			maskpartialbits(pbox->x1, w, startmask);
+			nlwExtra = nlwidth;
+			for (d = 0; d < depthDst; d++, saveP += sizeDst) {	/* @@@ NEXT PLANE @@@ */
+				if (!(planemask & (1 << d)))
+					continue;
+
+				p = saveP;
+				h = saveH;
+				iy = saveIY;
+
+				while (h--) {
+					switch (rropsOS[d]) {
+						case RROP_BLACK:
+							srcpix = 0;
+							break;
+						case RROP_WHITE:
+							srcpix = ~0;
+							break;
+						case RROP_COPY:
+							srcpix = psrc[iy];
+							break;
+						case RROP_INVERT:
+							srcpix = ~psrc[iy];
+							break;
+					}
+					iy++;
+					if (iy == tileHeight)
+						iy = 0;
+					*p = MROP_MASK(srcpix,*p,startmask);
+					afbScanlineInc(p, nlwExtra);
+				}
+			}
+		} else {
+			maskbits(pbox->x1, w, startmask, endmask, nlwMiddle);
+
+			for (d = 0; d < depthDst; d++, saveP += sizeDst) {	/* @@@ NEXT PLANE @@@ */
+				if (!(planemask & (1 << d)))
+					continue;
+
+				p = saveP;
+				h = saveH;
+				iy = saveIY;
+				nlwExtra = nlwidth - nlwMiddle;
+
+				if (startmask && endmask) {
+					nlwExtra -= 1;
+					while (h--) {
+						switch (rropsOS[d]) {
+							case RROP_BLACK:
+								srcpix = 0;
+								break;
+							case RROP_WHITE:
+								srcpix = ~0;
+								break;
+							case RROP_COPY:
+								srcpix = psrc[iy];
+								break;
+							case RROP_INVERT:
+								srcpix = ~psrc[iy];
+								break;
+						}
+						iy++;
+						if (iy == tileHeight)
+							iy = 0;
+						nlw = nlwMiddle;
+						*p = MROP_MASK (srcpix,*p,startmask);
+						p++;
+						while (nlw--) {
+							*p = MROP_SOLID(srcpix,*p);
+							p++;
+						}
+
+						*p = MROP_MASK(srcpix,*p,endmask);
+						afbScanlineInc(p, nlwExtra);
+					}
+				} else if (startmask && !endmask) {
+					nlwExtra -= 1;
+					while (h--) {
+						switch (rropsOS[d]) {
+							case RROP_BLACK:
+								srcpix = 0;
+								break;
+							case RROP_WHITE:
+								srcpix = ~0;
+								break;
+							case RROP_COPY:
+								srcpix = psrc[iy];
+								break;
+							case RROP_INVERT:
+								srcpix = ~psrc[iy];
+								break;
+						}
+						iy++;
+						if (iy == tileHeight)
+							iy = 0;
+						nlw = nlwMiddle;
+						*p = MROP_MASK(srcpix,*p,startmask);
+						p++;
+						while (nlw--) {
+							*p = MROP_SOLID(srcpix,*p);
+							p++;
+						}
+						afbScanlineInc(p, nlwExtra);
+					}
+				} else if (!startmask && endmask) {
+					while (h--) {
+						switch (rropsOS[d]) {
+							case RROP_BLACK:
+								srcpix = 0;
+								break;
+							case RROP_WHITE:
+								srcpix = ~0;
+								break;
+							case RROP_COPY:
+								srcpix = psrc[iy];
+								break;
+							case RROP_INVERT:
+								srcpix = ~psrc[iy];
+								break;
+						}
+						iy++;
+						if (iy == tileHeight)
+							iy = 0;
+						nlw = nlwMiddle;
+						while (nlw--) {
+							*p = MROP_SOLID(srcpix,*p);
+							p++;
+						}
+
+						*p = MROP_MASK(srcpix,*p,endmask);
+						afbScanlineInc(p, nlwExtra);
+					}
+				} else { /* no ragged bits at either end */
+					while (h--) {
+						switch (rropsOS[d]) {
+							case RROP_BLACK:
+								srcpix = 0;
+								break;
+							case RROP_WHITE:
+								srcpix = ~0;
+								break;
+							case RROP_COPY:
+								srcpix = psrc[iy];
+								break;
+							case RROP_INVERT:
+								srcpix = ~psrc[iy];
+								break;
+						}
+						iy++;
+						if (iy == tileHeight)
+							iy = 0;
+						nlw = nlwMiddle;
+						while (nlw--) {
+							*p = MROP_SOLID (srcpix,*p);
+							p++;
+						}
+						afbScanlineInc(p, nlwExtra);
+					}
+				}
+			} /* for (d = ...) */
+		}
+		pbox++;
+	}
+}
+
+void
+MROP_NAME(afbOpaqueStippleArea)(pDraw, nbox, pbox, alu, pTile, xOff, yOff,
+								rropsOS, planemask)
+	DrawablePtr pDraw;
+	int nbox;
+	BoxPtr pbox;
+	int alu;
+	PixmapPtr pTile;
+	int xOff;
+	int yOff;
+	register unsigned char *rropsOS;
+	unsigned long planemask;
+{
+	register PixelType *psrc;
+						/* pointer to bits in tile, if needed */
+	int nlwidth;		/* width in longwords of the drawable */
+	MROP_DECLARE_REG ()
+	register int h;		/* height of current box */
+	register PixelType *pdst;		/* pointer to bits we're writing */
+	register PixelType tmpsrc = 0;
+#if (MROP) != Mcopy
+	register PixelType tmpdst;
+#endif
+	int sizeDst;
+	int depthDst;
+	int tileLine;
+	int iline;
+	int w, width, x, xSrc, ySrc, srcStartOver, nend;
+	int tlwidth, rem, tileWidth, tileHeight, endinc;
+	int saveW;
+	PixelType *psrcT;
+	int d;
+	int nstart;
+	PixelType startmask;
+	PixelType endmask;		/* masks for reggedy bits at either end of line */
+	int nlMiddle;		/* number of longwords between sides of boxes */
+	int iy;
+	PixelType *pBase;		/* pointer to start of drawable */
+	PixelType *saveP;
+	PixelType *pStartDst;
+	PixelType *pStartTile;
+	int saveH;
+
+	afbGetPixelWidthSizeDepthAndPointer(pDraw, nlwidth, sizeDst, depthDst,
+													 pBase);
+
+	MROP_INITIALIZE(alu,~0)
+
+	tileHeight = pTile->drawable.height;
+	tileWidth = pTile->drawable.width;
+	tlwidth = pTile->devKind / sizeof (PixelType);
+
+	xSrc = pDraw->x + ((xOff % tileWidth) - tileWidth);
+	ySrc = pDraw->y + ((yOff % tileHeight) - tileHeight);
+
+	while (nbox--) {
+		saveW = pbox->x2 - pbox->x1;
+		iline = (pbox->y1 - ySrc) % tileHeight;
+		psrcT = (PixelType *) pTile->devPrivate.ptr;
+		tileLine = iline * tlwidth;
+		saveH = pbox->y2 - pbox->y1;
+		saveP = afbScanline(pBase, pbox->x1, pbox->y1, nlwidth);
+
+		for (d = 0; d < depthDst; d++, saveP += sizeDst) {	/* @@@ NEXT PLANE @@@ */
+			if (!(planemask & (1 << d)))
+				continue;
+
+			h = saveH;
+			pStartDst = saveP;
+			pStartTile = psrcT + tileLine;
+			iy = iline;
+
+			while (h--) {
+				x = pbox->x1;
+				width = saveW;
+				pdst = pStartDst;
+				while(width > 0) {
+					psrc = pStartTile;
+					w = min(tileWidth, width);
+					if((rem = (x - xSrc) % tileWidth) != 0) {
+						/* if we're in the middle of the tile, get
+						   as many bits as will finish the span, or
+						   as many as will get to the left edge of the tile,
+						   or a longword worth, starting at the appropriate
+						   offset in the tile.
+						*/
+						w = min(min(tileWidth - rem, width), BITMAP_SCANLINE_PAD);
+						endinc = rem / BITMAP_SCANLINE_PAD;
+
+						switch (rropsOS[d]) {
+							case RROP_BLACK:
+								tmpsrc = 0;
+								break;
+							case RROP_WHITE:
+								tmpsrc = ~0;
+								break;
+
+							case RROP_COPY:
+								getbits ((psrc+endinc), (rem&PIM), w, tmpsrc);
+								break;
+
+							case RROP_INVERT:
+								getbits ((psrc+endinc), (rem&PIM), w, tmpsrc);
+								tmpsrc = ~tmpsrc;
+								break;
+						}
+#if (MROP) != Mcopy
+						getbits (pdst, (x & PIM), w, tmpdst);
+						tmpsrc = DoMergeRop (tmpsrc, tmpdst);
+#endif
+						putbits (tmpsrc, (x & PIM), w, pdst);
+
+						if((x & PIM) + w >= PPW)
+							pdst++;
+					} else if(((x & PIM) + w) < PPW) {
+						/* doing < PPW bits is easy, and worth special-casing */
+						switch (rropsOS[d]) {
+							case RROP_BLACK:
+								tmpsrc = 0;
+								break;
+							case RROP_WHITE:
+								tmpsrc = ~0;
+								break;
+							case RROP_COPY:
+								tmpsrc = *psrc;
+								break;
+							case RROP_INVERT:
+								tmpsrc = ~*psrc;
+								break;
+						}
+#if (MROP) != Mcopy
+						getbits (pdst, (x & PIM), w, tmpdst);
+						tmpsrc = DoMergeRop (tmpsrc, tmpdst);
+#endif
+						putbits (tmpsrc, (x & PIM), w, pdst);
+					} else {
+						/* start at the left edge of the tile,
+						   and put down as much as we can
+						*/
+						maskbits(x, w, startmask, endmask, nlMiddle);
+
+						if (startmask)
+							nstart = PPW - (x & PIM);
+						else
+							nstart = 0;
+						if (endmask)
+							nend = (x + w)  & PIM;
+						else
+							nend = 0;
+
+						srcStartOver = nstart > PLST;
+
+						if(startmask) {
+						switch (rropsOS[d]) {
+							case RROP_BLACK:
+								tmpsrc = 0;
+								break;
+							case RROP_WHITE:
+								tmpsrc = ~0;
+								break;
+							case RROP_COPY:
+								tmpsrc = *psrc;
+								break;
+							case RROP_INVERT:
+								tmpsrc = ~*psrc;
+								break;
+						}
+#if (MROP) != Mcopy
+							getbits (pdst, (x & PIM), nstart, tmpdst);
+							tmpsrc = DoMergeRop (tmpsrc, tmpdst);
+#endif
+							putbits (tmpsrc, (x & PIM), nstart, pdst);
+							pdst++;
+							if(srcStartOver)
+								psrc++;
+						}
+
+						while(nlMiddle--) {
+						switch (rropsOS[d]) {
+							case RROP_BLACK:
+								tmpsrc = 0;
+								break;
+							case RROP_WHITE:
+								tmpsrc = ~0;
+								break;
+							case RROP_COPY:
+								getbits (psrc, nstart, PPW, tmpsrc);
+								break;
+							case RROP_INVERT:
+								getbits (psrc, nstart, PPW, tmpsrc);
+								tmpsrc = ~tmpsrc;
+								break;
+						}
+#if (MROP) != Mcopy
+							tmpdst = *pdst;
+							tmpsrc = DoMergeRop (tmpsrc, tmpdst);
+#endif
+							*pdst++ = tmpsrc;
+							/*putbits (tmpsrc, 0, PPW, pdst);
+							pdst++; */
+							psrc++;
+						}
+
+						if(endmask) {
+						switch (rropsOS[d]) {
+							case RROP_BLACK:
+								tmpsrc = 0;
+								break;
+							case RROP_WHITE:
+								tmpsrc = ~0;
+								break;
+
+							case RROP_COPY:
+								getbits (psrc, nstart, nend, tmpsrc);
+								break;
+
+							case RROP_INVERT:
+								getbits (psrc, nstart, nend, tmpsrc);
+								tmpsrc = ~tmpsrc;
+								break;
+						}
+#if (MROP) != Mcopy
+							tmpdst = *pdst;
+							tmpsrc = DoMergeRop (tmpsrc, tmpdst);
+#endif
+							putbits (tmpsrc, 0, nend, pdst);
+						}
+					 }
+					 x += w;
+					 width -= w;
+				} /* while (width > 0) */
+
+				pStartDst += nlwidth;
+				if (++iy >= tileHeight) {
+					iy = 0;
+					pStartTile = psrcT;
+				} else
+					pStartTile += tlwidth;
+
+			} /* while (h) */
+		} /* for (d = ... ) */
+		pbox++;
+	} /* for each box */
+}