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/* Copyright (c) 1986 Regents of the University of California */ |
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/* Copyright (c) 1991 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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* 4/23/86 |
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*/ |
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#include <stdio.h> |
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#include "standard.h" |
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#include "color.h" |
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#include "resolu.h" |
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|
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#define min(a,b) ((a)<(b)?(a):(b)) |
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|
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int xres = 0; /* resolution of input */ |
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int yres = 0; |
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RESOLU picres; /* resolution of picture */ |
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|
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int uniq = 0; /* unique values? */ |
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int uniq = 0; /* print only unique values? */ |
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|
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int original = 0; /* original values? */ |
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int original = 0; /* convert back to original values? */ |
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int dataonly = 0; /* data only format? */ |
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int reverse = 0; /* reverse conversion? */ |
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|
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int format = 'a'; /* input/output format */ |
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char *fmtid = "ascii"; /* format identifier for header */ |
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|
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int header = 1; /* do header */ |
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|
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double exposure = 1.0; |
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int wrongformat = 0; /* wrong input format? */ |
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|
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double gamcor = 1.0; /* gamma correction */ |
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|
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COLOR exposure = WHTCOLOR; |
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|
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char *progname; |
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FILE *fin; |
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int argc; |
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char **argv; |
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{ |
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extern double atof(); |
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extern int checkhead(); |
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int i; |
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progname = argv[0]; |
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|
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for (i = 1; i < argc; i++) |
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if (argv[i][0] == '-') |
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if (argv[i][0] == '-' || argv[i][0] == '+') |
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switch (argv[i][1]) { |
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case 'h': /* no header */ |
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header = 0; |
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case 'h': /* header */ |
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header = argv[i][0] == '+'; |
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break; |
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case 'u': /* unique values */ |
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uniq = 1; |
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uniq = argv[i][0] == '-'; |
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break; |
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case 'o': /* original values */ |
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original = 1; |
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original = argv[i][0] == '-'; |
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break; |
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case 'g': /* gamma correction */ |
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gamcor = atof(argv[++i]); |
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if (argv[i][0] == '+') |
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gamcor = 1.0/gamcor; |
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break; |
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case 'r': /* reverse conversion */ |
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reverse = 1; |
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reverse = argv[i][0] == '-'; |
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break; |
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case 'b': /* brightness values */ |
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brightonly = 1; |
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brightonly = argv[i][0] == '-'; |
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break; |
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case 'd': /* data only (no indices) */ |
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dataonly = 1; |
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dataonly = argv[i][0] == '-'; |
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switch (argv[i][2]) { |
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case '\0': |
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case 'a': /* ascii */ |
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format = 'a'; |
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fmtid = "ascii"; |
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break; |
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case 'i': /* integer */ |
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format = 'i'; |
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fmtid = "ascii"; |
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break; |
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case 'b': /* byte */ |
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dataonly = 1; |
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format = 'b'; |
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fmtid = "byte"; |
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break; |
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case 'f': /* float */ |
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dataonly = 1; |
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format = 'f'; |
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fmtid = "float"; |
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break; |
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case 'd': /* double */ |
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format = argv[i][2]; |
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dataonly = 1; |
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format = 'd'; |
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fmtid = "double"; |
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break; |
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default: |
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goto unkopt; |
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} |
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break; |
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case 'x': /* x resolution */ |
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xres = atoi(argv[++i]); |
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if (argv[i][0] == '-') |
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picres.or |= XDECR; |
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picres.xr = atoi(argv[++i]); |
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break; |
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case 'y': /* y resolution */ |
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yres = atoi(argv[++i]); |
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if (argv[i][0] == '-') |
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picres.or |= YDECR; |
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if (picres.xr == 0) |
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picres.or |= YMAJOR; |
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picres.yr = atoi(argv[++i]); |
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break; |
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default: |
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unkopt: |
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} |
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else |
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break; |
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|
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/* recognize special formats */ |
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if (dataonly && format == 'b') |
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if (brightonly) |
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fmtid = "8-bit_grey"; |
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else |
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fmtid = "24-bit_rgb"; |
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|
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if (i == argc) { |
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fin = stdin; |
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} else if (i == argc-1) { |
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set_io(); |
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if (reverse) { |
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if (header) /* get header */ |
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copyheader(fin, stdout); |
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/* add to header */ |
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printargs(i, argv, stdout); |
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printf("\n"); |
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if (yres <= 0 || xres <= 0) { |
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fprintf(stderr, "%s: missing x and y resolution\n", |
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progname); |
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/* get header */ |
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if (header && checkheader(fin, fmtid, stdout) < 0) { |
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fprintf(stderr, "%s: wrong input format\n", progname); |
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quit(1); |
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} |
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fputresolu(YMAJOR|YDECR, xres, yres, stdout); |
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if (picres.xr <= 0 || picres.yr <= 0) /* get resolution */ |
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if (!fgetsresolu(&picres, fin)) { |
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fprintf(stderr, "%s: missing resolution\n", |
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progname); |
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quit(1); |
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} |
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/* add to header */ |
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printargs(i, argv, stdout); |
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fputformat(COLRFMT, stdout); |
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putchar('\n'); |
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fputsresolu(&picres, stdout); |
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valtopix(); |
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} else { |
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/* get header */ |
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getheader(fin, checkhead); |
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getheader(fin, checkhead, NULL); |
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if (wrongformat) { |
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fprintf(stderr, "%s: input not a Radiance picture\n", |
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progname); |
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quit(1); |
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} |
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if (xres <= 0 || yres <= 0) /* get picture size */ |
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if (fgetresolu(&xres, &yres, fin) != (YMAJOR|YDECR)) { |
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fprintf(stderr, |
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"%s: missing x and y resolution\n", |
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if (picres.xr <= 0 || picres.yr <= 0) /* get picture size */ |
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if (!fgetsresolu(&picres, fin)) { |
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fprintf(stderr, "%s: missing resolution\n", |
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progname); |
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quit(1); |
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} |
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if (header) { |
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printargs(i, argv, stdout); |
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printf("\n"); |
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fputformat(fmtid, stdout); |
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putchar('\n'); |
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} |
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pixtoval(); |
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} |
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checkhead(line) /* deal with line from header */ |
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char *line; |
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{ |
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if (header) |
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char fmt[32]; |
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double d; |
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COLOR ctmp; |
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|
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if (isformat(line)) { |
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formatval(fmt, line); |
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wrongformat = strcmp(fmt, COLRFMT); |
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} else if (original && isexpos(line)) { |
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d = 1.0/exposval(line); |
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scalecolor(exposure, d); |
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} else if (original && iscolcor(line)) { |
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colcorval(ctmp, line); |
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setcolor(exposure, colval(exposure,RED)/colval(ctmp,RED), |
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colval(exposure,GRN)/colval(ctmp,GRN), |
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colval(exposure,BLU)/colval(ctmp,BLU)); |
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} else if (header) |
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fputs(line, stdout); |
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if (isexpos(line)) |
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exposure *= exposval(line); |
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} |
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pixtoval() /* convert picture to values */ |
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{ |
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COLOR *scanln; |
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register COLOR *scanln; |
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int dogamma; |
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COLOR lastc; |
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FLOAT hv[2]; |
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int y; |
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register int x; |
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scanln = (COLOR *)malloc(xres*sizeof(COLOR)); |
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scanln = (COLOR *)malloc(scanlen(&picres)*sizeof(COLOR)); |
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if (scanln == NULL) { |
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fprintf(stderr, "%s: out of memory\n", progname); |
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quit(1); |
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} |
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dogamma = gamcor < .95 || gamcor > 1.05; |
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setcolor(lastc, 0.0, 0.0, 0.0); |
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for (y = yres-1; y >= 0; y--) { |
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if (freadscan(scanln, xres, fin) < 0) { |
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for (y = 0; y < numscans(&picres); y++) { |
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if (freadscan(scanln, scanlen(&picres), fin) < 0) { |
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fprintf(stderr, "%s: read error\n", progname); |
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quit(1); |
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} |
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for (x = 0; x < xres; x++) { |
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for (x = 0; x < scanlen(&picres); x++) { |
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if (uniq) |
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if ( scanln[x][RED] == lastc[RED] && |
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scanln[x][GRN] == lastc[GRN] && |
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scanln[x][BLU] == lastc[BLU] ) |
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if ( colval(scanln[x],RED) == |
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colval(lastc,RED) && |
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colval(scanln[x],GRN) == |
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colval(lastc,GRN) && |
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colval(scanln[x],BLU) == |
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colval(lastc,BLU) ) |
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continue; |
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else |
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copycolor(lastc, scanln[x]); |
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if (original) |
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scalecolor(scanln[x], 1.0/exposure); |
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if (!dataonly) |
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printf("%7d %7d ", x, y); |
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multcolor(scanln[x], exposure); |
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if (dogamma) |
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setcolor(scanln[x], |
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pow(colval(scanln[x],RED), 1.0/gamcor), |
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pow(colval(scanln[x],GRN), 1.0/gamcor), |
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pow(colval(scanln[x],BLU), 1.0/gamcor)); |
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if (!dataonly) { |
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pix2loc(hv, &picres, x, y); |
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printf("%7d %7d ", (int)(hv[0]*picres.xr), |
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(int)(hv[1]*picres.yr)); |
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} |
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if ((*putval)(scanln[x], stdout) < 0) { |
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fprintf(stderr, "%s: write error\n", progname); |
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quit(1); |
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valtopix() /* convert values to a pixel file */ |
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{ |
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COLOR *scanln; |
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int dogamma; |
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register COLOR *scanln; |
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int y; |
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register int x; |
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scanln = (COLOR *)malloc(xres*sizeof(COLOR)); |
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scanln = (COLOR *)malloc(scanlen(&picres)*sizeof(COLOR)); |
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if (scanln == NULL) { |
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fprintf(stderr, "%s: out of memory\n", progname); |
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quit(1); |
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} |
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for (y = yres-1; y >= 0; y--) { |
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for (x = 0; x < xres; x++) { |
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dogamma = gamcor < .95 || gamcor > 1.05; |
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for (y = 0; y < numscans(&picres); y++) { |
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for (x = 0; x < scanlen(&picres); x++) { |
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if (!dataonly) |
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fscanf(fin, "%*d %*d"); |
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if ((*getval)(scanln[x], fin) < 0) { |
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fprintf(stderr, "%s: read error\n", progname); |
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quit(1); |
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} |
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if (dogamma) |
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setcolor(scanln[x], |
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pow(colval(scanln[x],RED), gamcor), |
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pow(colval(scanln[x],GRN), gamcor), |
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pow(colval(scanln[x],BLU), gamcor)); |
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} |
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if (fwritescan(scanln, xres, stdout) < 0 |
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|| fflush(stdout) < 0) { |
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if (fwritescan(scanln, scanlen(&picres), stdout) < 0) { |
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fprintf(stderr, "%s: write error\n", progname); |
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quit(1); |
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} |