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/* Copyright (c) 1999 Silicon Graphics, Inc. */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ SGI"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Radiance holodeck picture generator |
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*/ |
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#include <string.h> |
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#include "rholo.h" |
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#include "view.h" |
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#include "resolu.h" |
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char *progname; /* our program name */ |
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char *hdkfile; /* holodeck file name */ |
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char gargc; /* global argc */ |
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char **gargv; /* global argv */ |
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VIEW myview = STDVIEW; /* current output view */ |
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int xres = 512, yres = 512; /* max. horizontal and vertical resolution */ |
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{ |
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int i, rval; |
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gargc = argc; gargv = argv; |
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progname = argv[0]; /* get arguments */ |
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for (i = 1; i < argc && argv[i][0] == '-'; i++) { |
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rval = getviewopt(&myview, argc-i, argv+i); |
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pixaspect = atof(argv[++i]); |
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else if (argv[i][2] == 'e') { |
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expval = atof(argv[++i]); |
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if (argv[i][0] == '-' | argv[i][0] == '+') |
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if ((argv[i][0] == '-') | (argv[i][0] == '+')) |
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expval = pow(2., expval); |
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} else |
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goto userr; |
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/* render image */ |
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if (blist.nb > 0) { |
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render_frame(blist.bl, blist.nb); |
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free((char *)blist.bl); |
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free((void *)blist.bl); |
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} else { |
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sprintf(errmsg, "no section visible in frame %d", fn); |
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error(WARNING, errmsg); |
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register PACKHEAD *bl; |
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int nb; |
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{ |
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extern int pixBeam(); |
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extern void pixBeam(); |
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register HDBEAMI *bil; |
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register int i; |
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} |
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hdloadbeams(bil, nb, pixBeam); |
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pixFinish(randfrac); |
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free((char *)bil); |
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free((void *)bil); |
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} |
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/* write header */ |
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newheader("RADIANCE", stdout); |
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printf("SOFTWARE= %s\n", VersionID); |
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printf("%s %s\n", progname, hdkfile); |
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printargs(gargc, gargv, stdout); |
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if (fn) |
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printf("FRAME=%d\n", fn); |
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fputs(VIEWSTR, stdout); |
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fprintview(&myview, stdout); |
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fputc('\n', stdout); |
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if (pa < 0.99 | pa > 1.01) |
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if ((pa < 0.99) | (pa > 1.01)) |
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fputaspect(pa, stdout); |
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if (expval < 0.99 | expval > 1.01) |
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if ((expval < 0.99) | (expval > 1.01)) |
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fputexpos(expval, stdout); |
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fputformat(COLRFMT, stdout); |
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fputc('\n', stdout); |
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/* write resolution (standard order) */ |
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fprtresolu(hres, vres, stdout); |
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/* prepare image buffers */ |
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bzero((char *)mypixel, hres*vres*sizeof(COLOR)); |
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bzero((char *)myweight, hres*vres*sizeof(float)); |
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bzero((char *)mydepth, hres*vres*sizeof(float)); |
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memset((char *)mypixel, '\0', hres*vres*sizeof(COLOR)); |
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memset((char *)myweight, '\0', hres*vres*sizeof(float)); |
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memset((char *)mydepth, '\0', hres*vres*sizeof(float)); |
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} |
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endpicture() /* finish and write out pixels */ |
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{ |
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int lastr = -1, nunrend = 0; |
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int4 lastp, lastrp; |
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register int4 p; |
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int32 lastp, lastrp; |
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register int32 p; |
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register double d; |
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/* compute final pixel values */ |
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for (p = hres*vres; p--; ) { |
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if (myweight[p] <= FTINY) { |
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if (lastr >= 0) |
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if (lastr >= 0) { |
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if (p/hres == lastp/hres) |
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copycolor(mypixel[p], mypixel[lastp]); |
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else |
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copycolor(mypixel[p], mypixel[lastrp]); |
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} |
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nunrend++; |
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continue; |
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} |
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initialize() /* initialize holodeck and buffers */ |
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{ |
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extern long ftell(); |
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int fd; |
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FILE *fp; |
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int n; |
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int4 nextloc; |
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int32 nextloc; |
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/* open holodeck file */ |
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if ((fp = fopen(hdkfile, "r")) == NULL) { |
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sprintf(errmsg, "cannot open \"%s\" for reading", hdkfile); |
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fd = dup(fileno(fp)); /* dup file descriptor */ |
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fclose(fp); /* done with stdio */ |
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for (n = 0; nextloc > 0L; n++) { /* initialize each section */ |
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lseek(fd, (long)nextloc, 0); |
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lseek(fd, (off_t)nextloc, 0); |
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read(fd, (char *)&nextloc, sizeof(nextloc)); |
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hdinit(fd, NULL); |
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} |
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mypixel = (COLOR *)bmalloc(xres*yres*sizeof(COLOR)); |
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myweight = (float *)bmalloc(xres*yres*sizeof(float)); |
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mydepth = (float *)bmalloc(xres*yres*sizeof(float)); |
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if (mypixel == NULL | myweight == NULL | mydepth == NULL) |
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if ((mypixel == NULL) | (myweight == NULL) | (mydepth == NULL)) |
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error(SYSTEM, "out of memory in initialize"); |
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} |
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void |
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eputs(s) /* put error message to stderr */ |
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register char *s; |
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{ |
