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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 "view.h" |
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#include "resolu.h" |
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|
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#ifndef BKBSIZE |
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#define BKBSIZE 256 /* beam clump size (kilobytes) */ |
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#endif |
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|
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int checkdepth = 1; /* check depth (!-f option)? */ |
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int checkrepeats = 0; /* check for repeats (-c option)? */ |
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int frompicz; /* input from pictures & depth-buffers? */ |
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int noutsects; /* number of output sections */ |
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char obstr, unobstr; /* flag pointer values */ |
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int i; |
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|
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progname = argv[0]; |
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if (argc < 4) |
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frompicz = -1; |
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for (i = 2; i < argc && argv[i][0] == '-'; i++) |
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switch (argv[i][1]) { |
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case 'u': |
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checkrepeats = 1; |
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break; |
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case 'd': |
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checkdepth = 0; |
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break; |
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case 'h': |
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frompicz = 0; |
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break; |
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case 'p': |
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frompicz = 1; |
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break; |
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default: |
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goto userr; |
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} |
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if (i >= argc || frompicz < 0) |
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goto userr; |
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if (!strcmp(argv[2], "-h")) |
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frompicz = 0; |
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else if (!strcmp(argv[2], "-pz")) |
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frompicz = 1; |
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else |
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if (frompicz && (argc-i)%2) |
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goto userr; |
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if (frompicz && (argc-3)%2) |
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goto userr; |
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noutsects = openholo(argv[1], 1); |
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if (frompicz) |
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for (i = 3; i < argc; i += 2) |
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if (frompicz) { |
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for ( ; i < argc; i += 2) |
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addpicz(argv[i], argv[i+1]); |
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else |
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for (i = 3; i < argc; i++) |
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} else { |
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if (BKBSIZE*1024*1.5 > hdcachesize) |
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hdcachesize = BKBSIZE*1024*1.5; |
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for ( ; i < argc; i++) |
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addholo(argv[i]); |
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} |
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quit(0); |
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userr: |
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fprintf(stderr, "Usage: %s output.hdk -h inp1.hdk ..\n", progname); |
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fprintf(stderr, " Or: %s output.hdk -pz inp1.pic inp1.zbf ..\n", |
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fprintf(stderr, "Usage: %s output.hdk [-u][-d] -h inp1.hdk ..\n", |
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progname); |
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fprintf(stderr, " Or: %s output.hdk [-u][-d] -p inp1.pic inp1.zbf ..\n", |
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progname); |
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exit(1); |
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} |
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#define H_OBST 02 |
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#define H_OBSF 04 |
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int |
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holheadline(s, hf) /* check holodeck header line */ |
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register char *s; |
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int *hf; |
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*hf |= H_BADF; |
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else |
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*hf &= ~H_BADF; |
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return; |
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return(0); |
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} |
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if (!strncmp(s, "OBSTRUCTIONS=", 13)) { |
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s += 13; |
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*hf |= H_OBSF; |
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else |
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error(WARNING, "bad OBSTRUCTIONS value in holodeck"); |
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return; |
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return(0); |
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} |
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return(0); |
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} |
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int |
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double d; |
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COLR cv; |
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{ |
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int sn; |
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int sn, bi, n; |
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register HOLO *hp; |
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GCOORD gc[2]; |
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BYTE rr[2][2]; |
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BEAM *bp; |
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double d0, d1; |
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unsigned dc; |
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register RAYVAL *rv; |
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/* check each output section */ |
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for (sn = noutsects; sn--; ) { |
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d0 = hdinter(gc, rr, &d1, hp, ro, rd); |
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if (d <= d0 || d1 < -0.001) |
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continue; /* missed section */ |
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if (hp->priv == &obstr && d0 < -0.001) |
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continue; /* ray starts too late */ |
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if (hp->priv == &unobstr && d < 0.999*d1) |
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continue; /* ray ends too soon */ |
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/* should we check for duplicates? */ |
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rv = hdnewrays(hp, hdbindex(hp, gc), 1); |
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if (checkdepth) { /* check depth */ |
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if (hp->priv == &obstr && d0 < -0.001) |
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continue; /* ray starts too late */ |
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if (hp->priv == &unobstr && d < 0.999*d1) |
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continue; /* ray ends too soon */ |
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} |
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dc = hdcode(hp, d-d0); |
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bi = hdbindex(hp, gc); /* check for duplicates */ |
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if (checkrepeats && (bp = hdgetbeam(hp, bi)) != NULL) { |
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for (n = bp->nrm, rv = hdbray(bp); n--; rv++) |
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if (rv->d == dc && |
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rv->r[0][0] == rr[0][0] && |
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rv->r[0][1] == rr[0][1] && |
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rv->r[1][0] == rr[1][0] && |
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rv->r[1][1] == rr[1][1]) |
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break; |
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if (n >= 0) |
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continue; /* found a matching ray */ |
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} |
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rv = hdnewrays(hp, bi, 1); |
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rv->d = dc; |
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rv->r[0][0] = rr[0][0]; rv->r[0][1] = rr[0][1]; |
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rv->r[1][0] = rr[1][0]; rv->r[1][1] = rr[1][1]; |
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copycolr(rv->v, cv); |
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rv->d = hdcode(hp, d-d0); |
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} |
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} |
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addholo(hdf) /* add a holodeck file */ |
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char *hdf; |
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addbeam(bp, hb) /* add a beam to our output holodeck */ |
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register BEAM *bp; |
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register HDBEAMI *hb; |
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{ |
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int fd; |
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register HOLO *hp; |
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register BEAM *bp; |
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GCOORD gc[2]; |
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FVECT ro, rd; |
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double d; |
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int i, j; |
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register int k; |
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/* get beam coordinates */ |
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hdbcoord(gc, hb->h, hb->b); |
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/* add each ray to output */ |
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for (k = bp->nrm; k--; ) { |
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d = hdray(ro, rd, hb->h, gc, hdbray(bp)[k].r); |
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if (hb->h->priv == &unobstr) |
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VSUM(ro, ro, rd, d); |
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else |
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d = 0.; |
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d = hddepth(hb->h, hdbray(bp)[k].d) - d; |
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addray(ro, rd, d, hdbray(bp)[k].v); |
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} |
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hdfreebeam(hb->h, hb->b); /* free the beam */ |
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} |
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openholo(hdf, 0); /* open the holodeck for reading */ |
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|
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addholo(hdf) /* add a holodeck file */ |
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char *hdf; |
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{ |
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int fd; |
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/* open the holodeck for reading */ |
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openholo(hdf, 0); |
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fd = hdlist[noutsects]->fd; /* remember the file handle */ |
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while ((hp = hdlist[noutsects]) != NULL) { /* load each section */ |
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for (j = nbeams(hp); j > 0; j--) /* load each beam */ |
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if ((bp = hdgetbeam(hp, j)) != NULL) { |
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hdbcoord(gc, hp, j); |
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for (k = bp->nrm; k--; ) { |
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d = hdray(ro, rd, |
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hp, gc, hdbray(bp)[k].r); |
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if (hp->priv == &unobstr) |
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VSUM(ro, ro, rd, d); |
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else |
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d = 0.; |
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d = hddepth(hp, hdbray(bp)[k].d) - d; |
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addray(ro, rd, d, hdbray(bp)[k].v); |
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} |
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hdfreebeam(hp, j); /* free the beam */ |
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} |
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hddone(hp); /* free the section */ |
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while (hdlist[noutsects] != NULL) { /* load each section */ |
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/* clump the beams */ |
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clumpbeams(hdlist[noutsects], 0, BKBSIZE*1024, addbeam); |
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hddone(hdlist[noutsects]); /* free the section */ |
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} |
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close(fd); /* close the file */ |
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close(fd); /* close input file */ |
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} |
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}; |
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int |
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picheadline(s, ph) /* process picture header line */ |
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char *s; |
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struct phead *ph; |
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if (formatval(fmt, s)) { |
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ph->badfmt = strcmp(fmt, COLRFMT); |
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return; |
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return(0); |
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} |
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if (isprims(s)) { |
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ph->altprims++; /* don't want to deal with this */ |
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return; |
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return(0); |
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} |
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if (isexpos(s)) { |
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ph->expos *= exposval(s); |
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return; |
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return(0); |
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} |
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if (isview(s)) { |
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ph->gotview += sscanview(&ph->vw, s); |
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return; |
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return(0); |
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} |
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return(0); |
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} |
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addray(ro, rd, (double)zscn[i], cscn[i]); |
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} |
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} |
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/* write output */ |
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hdsync(NULL, 1); |
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/* clean up */ |
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free((char *)cscn); |
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free((char *)zscn); |