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/* Copyright (c) 1997 Silicon Graphics, Inc. */ |
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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ SGI"; |
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#include "rhdriver.h" |
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#ifndef MAXDIST |
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#define MAXDIST 13 /* maximum distance outside section */ |
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#define MAXDIST 42 /* maximum distance outside section */ |
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#endif |
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extern GCOORD *getviewcells(); |
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if (!cb1->wants) /* put orphans at the end, unsorted */ |
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return(cb2->wants); |
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if (!cb2->wants) |
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return(-1); |
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if ((c = cb1->bi - cb2->bi)) /* sort on beam index first */ |
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return(c); |
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return(cb1->hd - cb2->hd); /* use hd to resolve matches */ |
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} |
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cbeamadj(v, hr, vr) /* adjust our beam list */ |
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VIEW *v; |
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int hr, vr; |
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{ |
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register PACKHEAD *pa; |
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register int i; |
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int n; |
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/* first handle additions */ |
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pa = (PACKHEAD *)malloc(xcbeams*sizeof(PACKHEAD)); |
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if (xcbeams && pa == NULL) |
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goto memerr; |
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for (i = xcbeams; i--; ) { |
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pa[i].hd = cbeam[ncbeams+i].hd; |
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pa[i].bi = cbeam[ncbeams+i].bi; |
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pa[i].nr = npixels(v, hr, vr, hdlist[pa[i].hd], pa[i].bi) + 1; |
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} |
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n = xcbeams; /* now sort list for deletions */ |
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cbeamsort(0); |
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pa = (PACKHEAD *)realloc((char *)pa, (n+xcbeams)*sizeof(PACKHEAD)); |
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if (n+xcbeams && pa == NULL) |
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goto memerr; |
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for (i = xcbeams; i--; ) { |
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pa[n+i].hd = cbeam[ncbeams+i].hd; |
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pa[n+i].bi = cbeam[ncbeams+i].bi; |
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pa[n+i].nr = 0; |
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} |
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n += xcbeams; |
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xcbeams = 0; /* delete orphans */ |
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serv_request(DR_ADJSET, n*sizeof(PACKHEAD), (char *)pa); |
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free((char *)pa); |
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return; |
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memerr: |
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error(SYSTEM, "out of memory in cbeamadj"); |
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} |
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cbeamop(op, bl, n, v, hr, vr) /* update beams on server list */ |
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int op; |
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register struct beamcomp *bl; |
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pa[i].bi = bl[i].bi; |
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pa[i].nr = v==NULL ? 0 : |
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npixels(v, hr, vr, hdlist[bl[i].hd], bl[i].bi); |
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pa[i].nc = 0; |
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} |
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serv_request(op, n*sizeof(PACKHEAD), (char *)pa); |
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free((char *)pa); |
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VOXL vl[8]; |
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FVECT vp; |
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{ |
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static int lastn = 0, lastd = -1; |
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int n = 0; |
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FVECT gp; |
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double d; |
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error(COMMAND, "move past outer limits"); |
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return(0); |
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} |
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/* warn of dangerous moves */ |
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if (n < lastn && bestd >= lastd) |
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error(WARNING, "moving outside holodeck section"); |
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else if (n > lastn && bestd <= lastd) |
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error(WARNING, "moving inside holodeck section"); |
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lastd = bestd; |
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return(lastn = n); |
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return(n); |
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} |
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axmax = -1; avmax = 0; |
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for (i = 3; i--; ) { |
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d = vgp[i] - cgp[i]; |
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if (d < 0) d = -d; |
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if (d < 0.) d = -d; |
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if (d > avmax) { |
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avmax = d; |
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axmax = i; |
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} |
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} |
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#ifdef DEBUG |
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if (axmax < 0) |
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if (axmax < 0.) |
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error(CONSISTENCY, "botched axis computation in docell"); |
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#endif |
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/* compute offset vectors */ |
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for (i = 3; i--; ) |
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v1[i] = hp->xv[j][i] * d; |
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d = 0.5/hp->grid[j=(axmax+2)%3]; |
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if (DOT(hp->wn[axmax], vc) < 0) |
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if (DOT(hp->wn[axmax], vc) < 0.) |
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d = -d; /* reverse vertex ordering */ |
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for (i = 3; i--; ) |
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v2[i] = hp->xv[j][i] * d; |
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} |
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int |
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beam_sync() /* synchronize beams on server */ |
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{ |
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cbeamop(DR_NEWSET, cbeam, ncbeams, &odev.v, odev.hres, odev.vres); |
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return(ncbeams); |
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} |
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VOXL vlnew[8]; |
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int n, comn; |
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if (!vn->type) { /* clear our beam list */ |
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if (vn == NULL || !vn->type) { /* clear our beam list */ |
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set_voxels(vlnew, 0); |
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cbeamop(DR_DELSET, cbeam, ncbeams, NULL, 0, 0); |
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ncbeams = 0; |
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copystruct(&dvw, vn); |
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dvw.type = 0; |
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return(1); |
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} |
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/* find our new voxels */ |
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mvview(ca.vi, &dvw, vn); |
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else /* else add all new cells */ |
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doview(&ca, vn); |
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#if 1 |
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cbeamadj(vn, odev.hres, odev.vres); |
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#else |
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/* inform server of new beams */ |
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cbeamop(DR_ADDSET, cbeam+ncbeams, xcbeams, vn, odev.hres, odev.vres); |
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/* sort list to put orphans at end */ |
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/* tell server to delete orphans */ |
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cbeamop(DR_DELSET, cbeam+ncbeams, xcbeams, NULL, 0, 0); |
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xcbeams = 0; /* truncate our list */ |
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#endif |
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copystruct(&dvw, vn); /* record new view */ |
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return(1); |
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} |
