856 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			856 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			C
		
	
	
	
/* $XFree86: xc/programs/Xserver/afb/afbtile.c,v 3.4 2003/10/29 22:15:19 tsi Exp $ */
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/* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */
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/***********************************************************
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Copyright (c) 1987  X Consortium
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
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X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of the X Consortium shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from the X Consortium.
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Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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                        All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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******************************************************************/
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/* $XConsortium: afbtile.c,v 5.8 94/04/17 20:28:36 dpw Exp $ */
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#include "X.h"
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#include "windowstr.h"
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#include "regionstr.h"
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#include "pixmapstr.h"
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#include "scrnintstr.h"
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#include "afb.h"
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#include "maskbits.h"
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#include "mergerop.h"
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/*
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   the boxes are already translated.
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   NOTE:
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   iy = ++iy < tileHeight ? iy : 0
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is equivalent to iy%= tileheight, and saves a division.
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*/
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/*
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	tile area with a PPW bit wide pixmap
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*/
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void
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MROP_NAME(afbTileAreaPPW)(pDraw, nbox, pbox, alu, ptile, planemask)
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	DrawablePtr pDraw;
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	int nbox;
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	BoxPtr pbox;
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	int alu;
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	PixmapPtr ptile;
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	unsigned long planemask;
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{
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	register PixelType *psrc;
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						/* pointer to bits in tile, if needed */
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	int tileHeight;		/* height of the tile */
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	register PixelType srcpix;
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	int nlwidth;		/* width in longwords of the drawable */
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	int w;				/* width of current box */
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	MROP_DECLARE_REG ()
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	register int h;		/* height of current box */
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	register int nlw;		/* loop version of nlwMiddle */
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	register PixelType *p;		/* pointer to bits we're writing */
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	int sizeDst;
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	int depthDst;
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	register int d;
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	PixelType startmask;
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	PixelType endmask;		/* masks for reggedy bits at either end of line */
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	int nlwMiddle;		/* number of longwords between sides of boxes */
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	int nlwExtra;		/* to get from right of box to left of next span */
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	register int iy;		/* index of current scanline in tile */
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	PixelType *pbits;		/* pointer to start of drawable */
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	PixelType *saveP;
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	PixelType *pSaveSrc;
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	int saveH;
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	int saveIY;
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	afbGetPixelWidthSizeDepthAndPointer(pDraw, nlwidth, sizeDst, depthDst,
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													 pbits);
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	MROP_INITIALIZE(alu,~0)
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	tileHeight = ptile->drawable.height;
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	pSaveSrc = (PixelType *)(ptile->devPrivate.ptr);
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	while (nbox--) {
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		w = pbox->x2 - pbox->x1;
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		saveH = pbox->y2 - pbox->y1;
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		saveIY = pbox->y1 % tileHeight;
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		saveP = afbScanline(pbits, pbox->x1, pbox->y1, nlwidth);
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		psrc = pSaveSrc;
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		if (((pbox->x1 & PIM) + w) < PPW) {
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			maskpartialbits(pbox->x1, w, startmask);
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			nlwExtra = nlwidth;
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			for (d = 0; d < depthDst; d++, saveP += sizeDst, psrc += tileHeight) {	/* @@@ NEXT PLANE @@@ */
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				if (!(planemask & (1 << d)))
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					continue;
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				p = saveP;
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				h = saveH;
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				iy = saveIY;
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				while (h--) {
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					srcpix = psrc[iy];
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					iy++;
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					if (iy == tileHeight)
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						iy = 0;
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					*p = MROP_MASK(srcpix,*p,startmask);
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					afbScanlineInc(p, nlwExtra);
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				}
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			}
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		} else {
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			maskbits(pbox->x1, w, startmask, endmask, nlwMiddle);
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			for (d = 0; d < depthDst; d++, saveP += sizeDst, psrc += tileHeight) {	/* @@@ NEXT PLANE @@@ */
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				if (!(planemask & (1 << d)))
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					continue;
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				p = saveP;
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				h = saveH;
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				iy = saveIY;
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				nlwExtra = nlwidth - nlwMiddle;
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				if (startmask && endmask) {
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					nlwExtra -= 1;
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					while (h--) {
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						srcpix = psrc[iy];
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						iy++;
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						if (iy == tileHeight)
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							iy = 0;
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						nlw = nlwMiddle;
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						*p = MROP_MASK (srcpix,*p,startmask);
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						p++;
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						while (nlw--) {
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							*p = MROP_SOLID(srcpix,*p);
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							p++;
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						}
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						*p = MROP_MASK(srcpix,*p,endmask);
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						afbScanlineInc(p, nlwExtra);
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					}
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				} else if (startmask && !endmask) {
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					nlwExtra -= 1;
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					while (h--) {
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						srcpix = psrc[iy];
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						iy++;
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						if (iy == tileHeight)
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							iy = 0;
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						nlw = nlwMiddle;
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						*p = MROP_MASK(srcpix,*p,startmask);
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						p++;
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						while (nlw--) {
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							*p = MROP_SOLID(srcpix,*p);
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							p++;
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						}
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						afbScanlineInc(p, nlwExtra);
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					}
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				} else if (!startmask && endmask) {
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					while (h--) {
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						srcpix = psrc[iy];
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						iy++;
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						if (iy == tileHeight)
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							iy = 0;
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						nlw = nlwMiddle;
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						while (nlw--) {
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							*p = MROP_SOLID(srcpix,*p);
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							p++;
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						}
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						*p = MROP_MASK(srcpix,*p,endmask);
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						afbScanlineInc(p, nlwExtra);
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					}
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				} else { /* no ragged bits at either end */
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					while (h--) {
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						srcpix = psrc[iy];
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						iy++;
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						if (iy == tileHeight)
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							iy = 0;
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						nlw = nlwMiddle;
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						while (nlw--) {
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							*p = MROP_SOLID (srcpix,*p);
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							p++;
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						}
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						afbScanlineInc(p, nlwExtra);
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					}
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				}
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			} /* for (d = ...) */
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		}
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		pbox++;
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	}
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}
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void
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MROP_NAME(afbTileArea)(pDraw, nbox, pbox, alu, pTile, xOff, yOff, planemask)
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	DrawablePtr pDraw;
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	int nbox;
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	BoxPtr pbox;
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	int alu;
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	PixmapPtr pTile;
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	int xOff;
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	int yOff;
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	unsigned long planemask;
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{
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	register PixelType *psrc;
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						/* pointer to bits in tile, if needed */
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	int nlwidth;		/* width in longwords of the drawable */
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	MROP_DECLARE_REG ()
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	register int h;		/* height of current box */
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	register PixelType *pdst;		/* pointer to bits we're writing */
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	register PixelType tmpsrc;
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#if (MROP) != Mcopy
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	register PixelType tmpdst;
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#endif
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	int sizeDst;
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	int depthDst;
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	int sizeTile;
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	int tileLine;
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	int iline;
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	int w, width, x, xSrc, ySrc, srcStartOver, nend;
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	int tlwidth, rem, tileWidth, tileHeight, endinc;
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	int saveW;
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	PixelType *psrcT;
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	int d;
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	int nstart;
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	PixelType startmask;
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	PixelType endmask;		/* masks for reggedy bits at either end of line */
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	int nlMiddle;		/* number of longwords between sides of boxes */
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	int iy;
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	PixelType *pBase;		/* pointer to start of drawable */
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	PixelType *saveP;
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	PixelType *pStartDst;
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	PixelType *pStartTile;
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	int saveH;
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	afbGetPixelWidthSizeDepthAndPointer(pDraw, nlwidth, sizeDst, depthDst,
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													 pBase);
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	MROP_INITIALIZE(alu,~0)
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	tileHeight = pTile->drawable.height;
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	tileWidth = pTile->drawable.width;
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	tlwidth = pTile->devKind / sizeof (PixelType);
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	sizeTile = tlwidth * tileHeight;
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	xSrc = pDraw->x + ((xOff % tileWidth) - tileWidth);
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	ySrc = pDraw->y + ((yOff % tileHeight) - tileHeight);
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	while (nbox--) {
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		saveW = pbox->x2 - pbox->x1;
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		iline = (pbox->y1 - ySrc) % tileHeight;
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		psrcT = (PixelType *) pTile->devPrivate.ptr;
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		tileLine = iline * tlwidth;
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		saveH = pbox->y2 - pbox->y1;
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		saveP = afbScanline(pBase, pbox->x1, pbox->y1, nlwidth);
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		for (d = 0; d < depthDst; d++, psrcT += sizeTile, saveP += sizeDst) {	/* @@@ NEXT PLANE @@@ */
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			if (!(planemask & (1 << d)))
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				continue;
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			h = saveH;
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			pStartDst = saveP;
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			pStartTile = psrcT + tileLine;
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			iy = iline;
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			while (h--) {
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				x = pbox->x1;
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				width = saveW;
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				pdst = pStartDst;
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				while(width > 0) {
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					psrc = pStartTile;
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					w = min(tileWidth, width);
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					if((rem = (x - xSrc) % tileWidth) != 0) {
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						/* if we're in the middle of the tile, get
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						   as many bits as will finish the span, or
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						   as many as will get to the left edge of the tile,
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						   or a longword worth, starting at the appropriate
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						   offset in the tile.
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						*/
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						w = min(min(tileWidth - rem, width), BITMAP_SCANLINE_PAD);
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						endinc = rem / BITMAP_SCANLINE_PAD;
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						getbits ((psrc+endinc), (rem&PIM), w, tmpsrc);
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#if (MROP) != Mcopy
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						getbits (pdst, (x & PIM), w, tmpdst);
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						tmpsrc = DoMergeRop (tmpsrc, tmpdst);
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#endif
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						putbits (tmpsrc, (x & PIM), w, pdst);
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						if((x & PIM) + w >= PPW)
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							pdst++;
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					} else if(((x & PIM) + w) < PPW) {
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						/* doing < PPW bits is easy, and worth special-casing */
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						tmpsrc = *psrc;
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#if (MROP) != Mcopy
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						getbits (pdst, (x & PIM), w, tmpdst);
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						tmpsrc = DoMergeRop (tmpsrc, tmpdst);
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#endif
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						putbits (tmpsrc, (x & PIM), w, pdst);
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					} else {
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						/* start at the left edge of the tile,
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						   and put down as much as we can
 | 
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						*/
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						maskbits(x, w, startmask, endmask, nlMiddle);
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						if (startmask)
 | 
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							nstart = PPW - (x & PIM);
 | 
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						else
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							nstart = 0;
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						if (endmask)
 | 
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							nend = (x + w)  & PIM;
 | 
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						else
 | 
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							nend = 0;
 | 
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 | 
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						srcStartOver = nstart > PLST;
 | 
						|
 | 
						|
						if(startmask) {
 | 
						|
							tmpsrc = *psrc;
 | 
						|
#if (MROP) != Mcopy
 | 
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							getbits (pdst, (x & PIM), nstart, tmpdst);
 | 
						|
							tmpsrc = DoMergeRop (tmpsrc, tmpdst);
 | 
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#endif
 | 
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							putbits (tmpsrc, (x & PIM), nstart, pdst);
 | 
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							pdst++;
 | 
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							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 */
 | 
						|
}
 |