149 lines
4.9 KiB
C
149 lines
4.9 KiB
C
/* $XFree86: xc/programs/Xserver/afb/afbpolypnt.c,v 3.1 1998/03/20 21:04:56 hohndel 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: afbpolypnt.c,v 5.6 94/04/17 20:28:30 dpw Exp $ */
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <X11/X.h>
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#include <X11/Xprotostr.h>
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#include "pixmapstr.h"
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#include "gcstruct.h"
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#include "windowstr.h"
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#include "regionstr.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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void
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afbPolyPoint(pDrawable, pGC, mode, npt, pptInit)
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register DrawablePtr pDrawable;
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GCPtr pGC;
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int mode; /* Origin or Previous */
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int npt;
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xPoint *pptInit;
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{
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register BoxPtr pbox;
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register int nbox;
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register int d;
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register PixelType *addrl;
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PixelType *pBase;
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PixelType *pBaseSave;
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int nlwidth;
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int sizeDst;
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int depthDst;
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int nptTmp;
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register xPoint *ppt;
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register int x;
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register int y;
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register unsigned char *rrops;
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afbPrivGC *pGCPriv;
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pGCPriv = (afbPrivGC *) pGC->devPrivates[afbGCPrivateIndex].ptr;
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afbGetPixelWidthSizeDepthAndPointer(pDrawable, nlwidth, sizeDst, depthDst,
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pBaseSave);
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rrops = pGCPriv->rrops;
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if ((mode == CoordModePrevious) && (npt > 1))
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for (ppt = pptInit + 1, nptTmp = npt - 1; --nptTmp >= 0; ppt++) {
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ppt->x += (ppt-1)->x;
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ppt->y += (ppt-1)->y;
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}
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nbox = REGION_NUM_RECTS(pGC->pCompositeClip);
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pbox = REGION_RECTS(pGC->pCompositeClip);
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for (; --nbox >= 0; pbox++)
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for (d = 0, pBase = pBaseSave; d < depthDst; d++, pBase += sizeDst) { /* @@@ NEXT PLANE @@@ */
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addrl = pBase;
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switch (rrops[d]) {
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case RROP_BLACK:
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for (ppt = pptInit, nptTmp = npt; --nptTmp >= 0; ppt++) {
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x = ppt->x + pDrawable->x;
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y = ppt->y + pDrawable->y;
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if ((x >= pbox->x1) && (x < pbox->x2) &&
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(y >= pbox->y1) && (y < pbox->y2))
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*afbScanline(addrl, x, y, nlwidth) &= mfbGetrmask(x & PIM);
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}
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break;
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case RROP_WHITE:
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for (ppt = pptInit, nptTmp = npt; --nptTmp >= 0; ppt++) {
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x = ppt->x + pDrawable->x;
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y = ppt->y + pDrawable->y;
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if ((x >= pbox->x1) && (x < pbox->x2) &&
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(y >= pbox->y1) && (y < pbox->y2))
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*afbScanline(addrl, x, y, nlwidth) |= mfbGetmask(x & PIM);
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}
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break;
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case RROP_INVERT:
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for (ppt = pptInit, nptTmp = npt; --nptTmp >= 0; ppt++) {
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x = ppt->x + pDrawable->x;
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y = ppt->y + pDrawable->y;
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if ((x >= pbox->x1) && (x < pbox->x2) &&
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(y >= pbox->y1) && (y < pbox->y2))
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*afbScanline(addrl, x, y, nlwidth) ^= mfbGetmask(x & PIM);
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}
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break;
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case RROP_NOP:
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break;
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} /* switch */
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} /* for (d = ...) */
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}
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