From f4092abdf94af6a99aff944d6264bc1284e8bdd4 Mon Sep 17 00:00:00 2001 From: Reinhard Tartler Date: Mon, 10 Oct 2011 17:43:39 +0200 Subject: Imported nx-X11-3.1.0-1.tar.gz Summary: Imported nx-X11-3.1.0-1.tar.gz Keywords: Imported nx-X11-3.1.0-1.tar.gz into Git repository --- nx-X11/programs/Xserver/ilbm/ilbmfillarc.c | 377 +++++++++++++++++++++++++++++ 1 file changed, 377 insertions(+) create mode 100644 nx-X11/programs/Xserver/ilbm/ilbmfillarc.c (limited to 'nx-X11/programs/Xserver/ilbm/ilbmfillarc.c') diff --git a/nx-X11/programs/Xserver/ilbm/ilbmfillarc.c b/nx-X11/programs/Xserver/ilbm/ilbmfillarc.c new file mode 100644 index 000000000..a5ab6c4a2 --- /dev/null +++ b/nx-X11/programs/Xserver/ilbm/ilbmfillarc.c @@ -0,0 +1,377 @@ +/* $XFree86: xc/programs/Xserver/ilbm/ilbmfillarc.c,v 3.0 1996/08/18 01:53:48 dawes Exp $ */ +/************************************************************ + +Copyright (c) 1989 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. + +********************************************************/ + +/* $XConsortium: ilbmfillarc.c,v 5.14 94/04/17 20:28:20 dpw Exp $ */ + +/* Modified jun 95 by Geert Uytterhoeven (Geert.Uytterhoeven@cs.kuleuven.ac.be) + to use interleaved bitplanes instead of normal bitplanes */ + +#ifdef HAVE_DIX_CONFIG_H +#include +#endif + +#include +#include +#include "miscstruct.h" +#include "gcstruct.h" +#include "pixmapstr.h" +#include "scrnintstr.h" +#include "ilbm.h" +#include "maskbits.h" +#include "mifillarc.h" +#include "mi.h" + +static void +ilbmFillEllipseSolid(pDraw, arc, rrops) + DrawablePtr pDraw; + xArc *arc; + register unsigned char *rrops; +{ + int x, y, e; + int yk, xk, ym, xm, dx, dy, xorg, yorg; + register int slw; + miFillArcRec info; + PixelType *addrlt, *addrlb; + register PixelType *pdst; + PixelType *addrl; + register int n; + register int d; + int nlwidth; + register int xpos; + PixelType startmask, endmask; + int nlmiddle; + int depthDst; + int auxDst; + + ilbmGetPixelWidthAuxDepthAndPointer(pDraw, nlwidth, auxDst, depthDst, + addrlt); + miFillArcSetup(arc, &info); + MIFILLARCSETUP(); + xorg += pDraw->x; + yorg += pDraw->y; + addrlb = addrlt; + addrlt += auxDst * (yorg - y); + addrlb += auxDst * (yorg + y + dy); + while (y) { + addrlt += auxDst; + addrlb -= auxDst; + MIFILLARCSTEP(slw); + if (!slw) + continue; + xpos = xorg - x; + pdst = addrl = ilbmScanlineOffset(addrlt, (xpos >> PWSH)); + if (((xpos & PIM) + slw) < PPW) { + maskpartialbits(xpos, slw, startmask); + for (d = 0; d < depthDst; d++, pdst += nlwidth) { /* @@@ NEXT PLANE @@@ */ + switch (rrops[d]) { + case RROP_BLACK: + *pdst &= ~startmask; + break; + case RROP_WHITE: + *pdst |= startmask; + break; + case RROP_INVERT: + *pdst ^= startmask; + break; + case RROP_NOP: + break; + } + } + if (miFillArcLower(slw)) { + pdst = ilbmScanlineOffset(addrlb, (xpos >> PWSH)); + + for (d = 0; d < depthDst; d++, pdst += nlwidth) { /* @@@ NEXT PLANE @@@ */ + switch (rrops[d]) { + case RROP_BLACK: + *pdst &= ~startmask; + break; + case RROP_WHITE: + *pdst |= startmask; + break; + case RROP_INVERT: + *pdst ^= startmask; + break; + case RROP_NOP: + break; + } + } + } + continue; + } + maskbits(xpos, slw, startmask, endmask, nlmiddle); + for (d = 0; d < depthDst; d++, addrl += nlwidth) { /* @@@ NEXT PLANE @@@ */ + n = nlmiddle; + pdst = addrl; + + switch (rrops[d]) { + case RROP_BLACK: + if (startmask) + *pdst++ &= ~startmask; + while (n--) + *pdst++ = 0; + if (endmask) + *pdst &= ~endmask; + break; + + case RROP_WHITE: + if (startmask) + *pdst++ |= startmask; + while (n--) + *pdst++ = ~0; + if (endmask) + *pdst |= endmask; + break; + + case RROP_INVERT: + if (startmask) + *pdst++ ^= startmask; + while (n--) + *pdst++ ^= ~0; + if (endmask) + *pdst ^= endmask; + break; + + case RROP_NOP: + break; + } + } + if (!miFillArcLower(slw)) + continue; + addrl = ilbmScanlineOffset(addrlb, (xpos >> PWSH)); + for (d = 0; d < depthDst; d++, addrl += nlwidth) { /* @@@ NEXT PLANE @@@ */ + n = nlmiddle; + pdst = addrl; + + switch (rrops[d]) { + case RROP_BLACK: + if (startmask) + *pdst++ &= ~startmask; + while (n--) + *pdst++ = 0; + if (endmask) + *pdst &= ~endmask; + break; + + case RROP_WHITE: + if (startmask) + *pdst++ |= startmask; + while (n--) + *pdst++ = ~0; + if (endmask) + *pdst |= endmask; + break; + + case RROP_INVERT: + if (startmask) + *pdst++ ^= startmask; + while (n--) + *pdst++ ^= ~0; + if (endmask) + *pdst ^= endmask; + break; + + case RROP_NOP: + break; + } + } + } +} + +#define FILLSPAN(xl,xr,addr) \ + if (xr >= xl) { \ + width = xr - xl + 1; \ + addrl = ilbmScanlineOffset(addr, (xl >> PWSH)); \ + if (((xl & PIM) + width) < PPW) { \ + maskpartialbits(xl, width, startmask); \ + for (pdst = addrl, d = 0; d < depthDst; d++, pdst += nlwidth) { /* @@@ NEXT PLANE @@@ */ \ + switch (rrops[d]) { \ + case RROP_BLACK: \ + *pdst &= ~startmask; \ + break; \ + case RROP_WHITE: \ + *pdst |= startmask; \ + break; \ + case RROP_INVERT: \ + *pdst ^= startmask; \ + break; \ + case RROP_NOP: \ + break; \ + } \ + } \ + } else { \ + maskbits(xl, width, startmask, endmask, nlmiddle); \ + for (d = 0; d < depthDst; d++, addrl += nlwidth) { /* @@@ NEXT PLANE @@@ */ \ + n = nlmiddle; \ + pdst = addrl; \ + switch (rrops[d]) { \ + case RROP_BLACK: \ + if (startmask) \ + *pdst++ &= ~startmask; \ + while (n--) \ + *pdst++ = 0; \ + if (endmask) \ + *pdst &= ~endmask; \ + break; \ + case RROP_WHITE: \ + if (startmask) \ + *pdst++ |= startmask; \ + while (n--) \ + *pdst++ = ~0; \ + if (endmask) \ + *pdst |= endmask; \ + break; \ + case RROP_INVERT: \ + if (startmask) \ + *pdst++ ^= startmask; \ + while (n--) \ + *pdst++ ^= ~0; \ + if (endmask) \ + *pdst ^= endmask; \ + break; \ + case RROP_NOP: \ + break; \ + } \ + } \ + } \ + } + +#define FILLSLICESPANS(flip,addr) \ + if (!flip) { \ + FILLSPAN(xl, xr, addr); \ + } else { \ + xc = xorg - x; \ + FILLSPAN(xc, xr, addr); \ + xc += slw - 1; \ + FILLSPAN(xl, xc, addr); \ + } + +static void +ilbmFillArcSliceSolidCopy(pDraw, pGC, arc, rrops) + DrawablePtr pDraw; + GCPtr pGC; + xArc *arc; + register unsigned char *rrops; +{ + PixelType *addrl; + register PixelType *pdst; + register int n; + register int d; + int yk, xk, ym, xm, dx, dy, xorg, yorg, slw; + register int x, y, e; + miFillArcRec info; + miArcSliceRec slice; + int xl, xr, xc; + PixelType *addrlt, *addrlb; + int nlwidth; + int width; + PixelType startmask, endmask; + int nlmiddle; + int auxDst; + int depthDst; + + ilbmGetPixelWidthAuxDepthAndPointer(pDraw, nlwidth, auxDst, depthDst, + addrlt); + miFillArcSetup(arc, &info); + miFillArcSliceSetup(arc, &slice, pGC); + MIFILLARCSETUP(); + xorg += pDraw->x; + yorg += pDraw->y; + addrlb = addrlt; + addrlt = ilbmScanlineDeltaNoBankSwitch(addrlt, yorg - y, auxDst); + addrlb = ilbmScanlineDeltaNoBankSwitch(addrlb, yorg + y + dy, auxDst); + slice.edge1.x += pDraw->x; + slice.edge2.x += pDraw->x; + while (y > 0) { + ilbmScanlineIncNoBankSwitch(addrlt, auxDst); + ilbmScanlineIncNoBankSwitch(addrlb, -auxDst); + MIFILLARCSTEP(slw); + MIARCSLICESTEP(slice.edge1); + MIARCSLICESTEP(slice.edge2); + if (miFillSliceUpper(slice)) { + MIARCSLICEUPPER(xl, xr, slice, slw); + FILLSLICESPANS(slice.flip_top, addrlt); + } + if (miFillSliceLower(slice)) { + MIARCSLICELOWER(xl, xr, slice, slw); + FILLSLICESPANS(slice.flip_bot, addrlb); + } + } +} + +void +ilbmPolyFillArcSolid(pDraw, pGC, narcs, parcs) + register DrawablePtr pDraw; + GCPtr pGC; + int narcs; + xArc *parcs; +{ + ilbmPrivGC *priv; + register xArc *arc; + register int i; + int x2, y2; + BoxRec box; + RegionPtr cclip; + unsigned char *rrops; + + priv = (ilbmPrivGC *) pGC->devPrivates[ilbmGCPrivateIndex].ptr; + rrops = priv->rrops; + cclip = pGC->pCompositeClip; + for (arc = parcs, i = narcs; --i >= 0; arc++) { + if (miFillArcEmpty(arc)) + continue; + if (miCanFillArc(arc)) { + box.x1 = arc->x + pDraw->x; + box.y1 = arc->y + pDraw->y; + /* + * Because box.x2 and box.y2 get truncated to 16 bits, and the + * RECT_IN_REGION test treats the resulting number as a signed + * integer, the RECT_IN_REGION test alone can go the wrong way. + * This can result in a server crash because the rendering + * routines in this file deal directly with cpu addresses + * of pixels to be stored, and do not clip or otherwise check + * that all such addresses are within their respective pixmaps. + * So we only allow the RECT_IN_REGION test to be used for + * values that can be expressed correctly in a signed short. + */ + x2 = box.x1 + (int)arc->width + 1; + box.x2 = x2; + y2 = box.y1 + (int)arc->height + 1; + box.y2 = y2; + if ( (x2 <= MAXSHORT) && (y2 <= MAXSHORT) && + (RECT_IN_REGION(pDraw->pScreen, cclip, &box) == rgnIN) ) { + if ((arc->angle2 >= FULLCIRCLE) || + (arc->angle2 <= -FULLCIRCLE)) + ilbmFillEllipseSolid(pDraw, arc, rrops); + else + ilbmFillArcSliceSolidCopy(pDraw, pGC, arc, rrops); + continue; + } + } + miPolyFillArc(pDraw, pGC, 1, arc); + } +} -- cgit v1.2.3