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/* Copyright (c) 1995 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Interpolate and extrapolate pictures with different view parameters. |
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* |
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#include "color.h" |
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#include "resolu.h" |
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#define LOG2 0.69314718055994530942 |
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#define pscan(y) (ourpict+(y)*hresolu) |
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#define PACKSIZ 256 /* max. calculation packet size */ |
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#define RTCOM "rtrace -h- -ovl -fff " |
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#define RTCOM "rtrace -h- -ovl -fff -ld- -i- -I- " |
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#define ABS(x) ((x)>0?(x):-(x)) |
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if (argv[an][2] != 'f') |
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goto badopt; |
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check(3,"s"); |
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gotvfile = viewfile(argv[++an], &ourview, 0, 0); |
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gotvfile = viewfile(argv[++an], &ourview, NULL); |
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if (gotvfile < 0) |
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syserror(argv[an]); |
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else if (gotvfile == 0) { |
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syserror(progname); |
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/* new header */ |
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newheader("RADIANCE", stdout); |
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fputnow(stdout); |
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/* run pictures */ |
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do { |
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bzero((char *)ourzbuf, hresolu*vresolu*sizeof(float)); |
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} |
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int |
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headline(s) /* process header string */ |
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char *s; |
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{ |
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char fmt[32]; |
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if (isheadid(s)) |
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return; |
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return(0); |
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if (formatval(fmt, s)) { |
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if (globmatch(ourfmt, fmt)) { |
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wrongformat = 0; |
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strcpy(ourfmt, fmt); |
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} else |
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wrongformat = 1; |
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return; |
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return(0); |
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} |
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if (nvavg < 2) { |
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putc('\t', stdout); |
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} |
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if (isexpos(s)) { |
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theirexp *= exposval(s); |
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return; |
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return(0); |
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} |
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if (isview(s) && sscanview(&theirview, s) > 0) |
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gotview++; |
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return(0); |
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} |
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if (xlim == NULL) |
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syserror(progname); |
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if (!getperim(xlim, &ylim, zin, zfd)) { /* overlapping area? */ |
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free((char *)zin); |
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free((char *)xlim); |
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free((void *)zin); |
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free((void *)xlim); |
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if (zfd != -1) |
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close(zfd); |
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fclose(pfp); |
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exit(1); |
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} |
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if (zfd != -1 && lseek(zfd, |
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(long)ylim.min*scanlen(&tresolu)*sizeof(float), 0) < 0) |
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(off_t)ylim.min*scanlen(&tresolu)*sizeof(float), 0) < 0) |
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syserror(zspec); |
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/* load image */ |
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for (y = ylim.min; y <= ylim.max; y++) { |
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addscanline(xlim+y, y, scanin, zin, plast); |
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} |
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/* clean up */ |
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free((char *)xlim); |
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free((char *)scanin); |
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free((char *)zin); |
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free((char *)plast); |
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free((void *)xlim); |
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free((void *)scanin); |
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free((void *)zin); |
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free((void *)plast); |
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fclose(pfp); |
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if (zfd != -1) |
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close(zfd); |
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{ |
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FVECT pt, tdir, odir; |
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double d; |
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register int i; |
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if (pos[2] <= 0) /* empty pixel */ |
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return(0); |
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return(0); |
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if (!averaging) |
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return(1); |
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if (ourview.type == VT_PAR) /* compute our direction */ |
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VCOPY(odir, ourview.vdir); |
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else |
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for (i = 0; i < 3; i++) |
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odir[i] = (pt[i] - ourview.vp[i])/pos[2]; |
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d = DOT(odir,tdir); /* compute pixel weight */ |
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if (d >= 1.-1./MAXWT/MAXWT) |
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/* compute pixel weight */ |
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if (ourview.type == VT_PAR) { |
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d = DOT(ourview.vdir,tdir); |
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d = 1. - d*d; |
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} else { |
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VSUB(odir, pt, ourview.vp); |
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d = DOT(odir,tdir); |
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d = 1. - d*d/DOT(odir,odir); |
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} |
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if (d <= 1./MAXWT/MAXWT) |
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return(MAXWT); /* clip to maximum weight */ |
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return(1./sqrt(1.-d)); |
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return(1./sqrt(d)); |
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} |
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yl->min = 32000; yl->max = 0; /* search for points on image */ |
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for (y = step - 1; y < numscans(&tresolu); y += step) { |
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if (zfd != -1) { |
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if (lseek(zfd, (long)y*scanlen(&tresolu)*sizeof(float), |
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if (lseek(zfd, (off_t)y*scanlen(&tresolu)*sizeof(float), |
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0) < 0) |
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syserror("lseek"); |
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if (read(zfd, (char *)zline, |
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xback = -2; |
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} |
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} |
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free((char *)yback); |
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free((void *)yback); |
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} |
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} |
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/* mark end and get results */ |
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bzero((char *)fbp, 6*sizeof(float)); |
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if (process(PDesc, fbuf, fbuf, 4*sizeof(float)*queuesiz, |
1172 |
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if (process(PDesc, (char *)fbuf, (char *)fbuf, |
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4*sizeof(float)*(queuesiz+1), |
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6*sizeof(float)*(queuesiz+1)) != |
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4*sizeof(float)*queuesiz) { |
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4*sizeof(float)*(queuesiz+1)) { |
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fprintf(stderr, "%s: error reading from rtrace process\n", |
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progname); |
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exit(1); |