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Diffstat (limited to 'mfb/mfbpolypnt.c')
| -rw-r--r-- | mfb/mfbpolypnt.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/mfb/mfbpolypnt.c b/mfb/mfbpolypnt.c new file mode 100644 index 000000000..8b6efab98 --- /dev/null +++ b/mfb/mfbpolypnt.c @@ -0,0 +1,140 @@ +/* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */ +/*********************************************************** + +Copyright 1987, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +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 +OPEN GROUP 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 Open Group 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 Open Group. + + +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. + +******************************************************************/ +/* $Xorg: mfbpolypnt.c,v 1.4 2001/02/09 02:05:19 xorgcvs Exp $ */ + +#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 "mfb.h" +#include "maskbits.h" + +void +mfbPolyPoint(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 PixelType *addrl; + int nlwidth; + + int nptTmp; + register xPoint *ppt; + + register int x; + register int y; + register int rop; + mfbPrivGC *pGCPriv; + + if (!(pGC->planemask & 1)) + return; + + pGCPriv = (mfbPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr; + rop = pGCPriv->rop; + + mfbGetPixelWidthAndPointer(pDrawable, nlwidth, addrl); + + 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(pGCPriv->pCompositeClip); + pbox = REGION_RECTS(pGCPriv->pCompositeClip); + for (; --nbox >= 0; pbox++) + { + if (rop == 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)) + *mfbScanline(addrl, x, y, nlwidth) &= rmask[x & PIM]; + } + } + else if (rop == 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)) + *mfbScanline(addrl, x, y, nlwidth) |= mask[x & PIM]; + } + } + else if (rop == 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)) + *mfbScanline(addrl, x, y, nlwidth) ^= mask[x & PIM]; + } + } + } +} |