diff options
Diffstat (limited to 'ilbm/ilbmpolypnt.c')
| -rw-r--r-- | ilbm/ilbmpolypnt.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/ilbm/ilbmpolypnt.c b/ilbm/ilbmpolypnt.c new file mode 100644 index 000000000..f313dc8d1 --- /dev/null +++ b/ilbm/ilbmpolypnt.c @@ -0,0 +1,148 @@ +/* $XFree86: xc/programs/Xserver/ilbm/ilbmpolypnt.c,v 3.1 1998/03/20 21:08:03 hohndel 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: ilbmpolypnt.c,v 5.6 94/04/17 20:28:30 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 "Xprotostr.h" +#include "pixmapstr.h" +#include "gcstruct.h" +#include "windowstr.h" +#include "miscstruct.h" +#include "regionstr.h" +#include "scrnintstr.h" + +#include "ilbm.h" +#include "maskbits.h" + +void +ilbmPolyPoint(pDrawable, pGC, mode, npt, pptInit) + register DrawablePtr pDrawable; + GCPtr pGC; + int mode; /* Origin or Previous */ + int npt; + xPoint *pptInit; +{ + + register BoxPtr pbox; + register int nbox; + register int d; + + register PixelType *addrl; + PixelType *pBase; + PixelType *pBaseSave; + int nlwidth; + int auxDst; + int depthDst; + + int nptTmp; + register xPoint *ppt; + + register int x; + register int y; + register unsigned char *rrops; + ilbmPrivGC *pGCPriv; + + pGCPriv = (ilbmPrivGC *) pGC->devPrivates[ilbmGCPrivateIndex].ptr; + + ilbmGetPixelWidthAuxDepthAndPointer(pDrawable, nlwidth, auxDst, depthDst, + pBaseSave); + + rrops = pGCPriv->rrops; + if ((mode == CoordModePrevious) && (npt > 1)) + for (ppt = pptInit + 1, nptTmp = npt - 1; --nptTmp >= 0; ppt++) { + ppt->x += (ppt-1)->x; + ppt->y += (ppt-1)->y; + } + + nbox = REGION_NUM_RECTS(pGC->pCompositeClip); + pbox = REGION_RECTS(pGC->pCompositeClip); + for (; --nbox >= 0; pbox++) + for (d = 0, pBase = pBaseSave; d < depthDst; d++, pBase += nlwidth) { /* @@@ NEXT PLANE @@@ */ + addrl = pBase; + + switch (rrops[d]) { + case RROP_BLACK: + for (ppt = pptInit, nptTmp = npt; --nptTmp >= 0; ppt++) { + x = ppt->x + pDrawable->x; + y = ppt->y + pDrawable->y; + if ((x >= pbox->x1) && (x < pbox->x2) && + (y >= pbox->y1) && (y < pbox->y2)) + *ilbmScanline(addrl, x, y, auxDst) &= rmask[x & PIM]; + } + break; + + case RROP_WHITE: + for (ppt = pptInit, nptTmp = npt; --nptTmp >= 0; ppt++) { + x = ppt->x + pDrawable->x; + y = ppt->y + pDrawable->y; + if ((x >= pbox->x1) && (x < pbox->x2) && + (y >= pbox->y1) && (y < pbox->y2)) + *ilbmScanline(addrl, x, y, auxDst) |= mask[x & PIM]; + } + break; + + case RROP_INVERT: + for (ppt = pptInit, nptTmp = npt; --nptTmp >= 0; ppt++) { + x = ppt->x + pDrawable->x; + y = ppt->y + pDrawable->y; + if ((x >= pbox->x1) && (x < pbox->x2) && + (y >= pbox->y1) && (y < pbox->y2)) + *ilbmScanline(addrl, x, y, auxDst) ^= mask[x & PIM]; + } + break; + + case RROP_NOP: + break; + } /* switch */ + } /* for (d = ...) */ +} |