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Diffstat (limited to 'cfb/cfbpolypnt.c')
| -rw-r--r-- | cfb/cfbpolypnt.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/cfb/cfbpolypnt.c b/cfb/cfbpolypnt.c new file mode 100644 index 000000000..bf2217fb1 --- /dev/null +++ b/cfb/cfbpolypnt.c @@ -0,0 +1,150 @@ +/************************************************************ + +Copyright 1989, 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. + +********************************************************/ + +/* $Xorg: cfbpolypnt.c,v 1.4 2001/02/09 02:04:38 xorgcvs Exp $ */ + +#include "X.h" +#include "gcstruct.h" +#include "windowstr.h" +#include "pixmapstr.h" +#include "regionstr.h" +#include "scrnintstr.h" +#include "cfb.h" +#include "cfbmskbits.h" + +#define isClipped(c,ul,lr) ((((c) - (ul)) | ((lr) - (c))) & ClipMask) + +/* WARNING: pbox contains two shorts. This code assumes they are packed + * and can be referenced together as an INT32. + */ + +#define PointLoop(fill) { \ + for (nbox = REGION_NUM_RECTS(cclip), pbox = REGION_RECTS(cclip); \ + --nbox >= 0; \ + pbox++) \ + { \ + c1 = *((INT32 *) &pbox->x1) - off; \ + c2 = *((INT32 *) &pbox->x2) - off - 0x00010001; \ + for (ppt = (INT32 *) pptInit, i = npt; --i >= 0;) \ + { \ + pt = *ppt++; \ + if (!isClipped(pt,c1,c2)) { \ + fill \ + } \ + } \ + } \ +} + +void +cfbPolyPoint(pDrawable, pGC, mode, npt, pptInit) + DrawablePtr pDrawable; + GCPtr pGC; + int mode; + int npt; + xPoint *pptInit; +{ + register INT32 pt; + register INT32 c1, c2; + register unsigned long ClipMask = 0x80008000; + register unsigned long xor; +#ifdef PIXEL_ADDR + register PixelType *addrp; + register int npwidth; + PixelType *addrpt; +#else + register unsigned long *addrl; + register int nlwidth; + register int xoffset; + unsigned long *addrlt; +#endif + register INT32 *ppt; + RegionPtr cclip; + int nbox; + register int i; + register BoxPtr pbox; + unsigned long and; + int rop = pGC->alu; + int off; + cfbPrivGCPtr devPriv; + xPoint *pptPrev; + + devPriv =cfbGetGCPrivate(pGC); + rop = devPriv->rop; + if (rop == GXnoop) + return; + cclip = devPriv->pCompositeClip; + xor = devPriv->xor; + if ((mode == CoordModePrevious) && (npt > 1)) + { + for (pptPrev = pptInit + 1, i = npt - 1; --i >= 0; pptPrev++) + { + pptPrev->x += (pptPrev-1)->x; + pptPrev->y += (pptPrev-1)->y; + } + } + off = *((int *) &pDrawable->x); + off -= (off & 0x8000) << 1; +#ifdef PIXEL_ADDR + cfbGetPixelWidthAndPointer(pDrawable, npwidth, addrp); + addrp = addrp + pDrawable->y * npwidth + pDrawable->x; + if (rop == GXcopy) + { + if (!(npwidth & (npwidth - 1))) + { + npwidth = ffs(npwidth) - 1; + PointLoop(*(addrp + (intToY(pt) << npwidth) + intToX(pt)) = xor;) + } +#ifdef sun + else if (npwidth == 1152) + { + register int y; + PointLoop(y = intToY(pt); *(addrp + (y << 10) + (y << 7) + intToX(pt)) = xor;) + } +#endif + else + { + PointLoop(*(addrp + intToY(pt) * npwidth + intToX(pt)) = xor;) + } + } + else + { + and = devPriv->and; + PointLoop( addrpt = addrp + intToY(pt) * npwidth + intToX(pt); + *addrpt = DoRRop (*addrpt, and, xor);) + } +#else /* !PIXEL_ADDR */ + cfbGetLongWidthAndPointer(pDrawable, nlwidth, addrl); + addrl = addrl + pDrawable->y * nlwidth + (pDrawable->x >> PWSH); + xoffset = pDrawable->x & PIM; + and = devPriv->and; + PointLoop( addrlt = addrl + intToY(pt) * nlwidth + + ((intToX(pt) + xoffset) >> PWSH); + *addrlt = DoRRop (*addrlt, + and | ~cfbmask[(intToX(pt) + xoffset) & PIM], + xor & cfbmask[(intToX(pt) + xoffset) & PIM]); + ) +#endif /* PIXEL_ADDR */ +} |