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/* Copyright (c) 1986 Regents of the University of California */ |
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|
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#endif |
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|
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/* |
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* pvalue.c - program to print pixel values. |
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* |
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* 4/23/86 |
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*/ |
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|
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#include <stdio.h> |
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|
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#include "color.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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|
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int uniq = 0; /* print only unique values? */ |
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|
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int original = 0; /* convert back to original values? */ |
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|
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int dataonly = 0; /* data only format? */ |
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|
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int brightonly = 0; /* only brightness values? */ |
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|
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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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int wrongformat = 0; /* wrong input format? */ |
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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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|
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FILE *fin; |
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|
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int (*getval)(), (*putval)(); |
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|
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|
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main(argc, argv) |
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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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|
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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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switch (argv[i][1]) { |
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case 'h': /* no header */ |
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header = 0; |
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break; |
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case 'u': /* unique values */ |
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uniq = 1; |
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break; |
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case 'o': /* original values */ |
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original = 1; |
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break; |
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case 'r': /* reverse conversion */ |
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reverse = 1; |
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break; |
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case 'b': /* brightness values */ |
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brightonly = 1; |
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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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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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format = 'b'; |
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fmtid = "byte"; |
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break; |
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case 'f': /* float */ |
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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 = '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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break; |
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case 'y': /* y resolution */ |
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yres = atoi(argv[++i]); |
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break; |
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default: |
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unkopt: |
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fprintf(stderr, "%s: unknown option: %s\n", |
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progname, argv[i]); |
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quit(1); |
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break; |
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} |
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else |
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break; |
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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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if ((fin = fopen(argv[i], "r")) == NULL) { |
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fprintf(stderr, "%s: can't open file \"%s\"\n", |
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progname, argv[i]); |
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quit(1); |
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} |
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} else { |
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fprintf(stderr, "%s: bad # file arguments\n", progname); |
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quit(1); |
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} |
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|
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set_io(); |
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|
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if (reverse) { |
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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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quit(1); |
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} |
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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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/* add to header */ |
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printargs(i, argv, stdout); |
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fputformat(COLRFMT, stdout); |
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printf("\n"); |
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fputresolu(YMAJOR|YDECR, xres, yres, stdout); |
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valtopix(); |
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} else { |
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/* get header */ |
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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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|
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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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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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fputformat(fmtid, stdout); |
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printf("\n"); |
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} |
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pixtoval(); |
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} |
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|
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quit(0); |
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} |
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|
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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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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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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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} |
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|
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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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COLOR lastc; |
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int y; |
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register int x; |
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|
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scanln = (COLOR *)malloc(xres*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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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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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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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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continue; |
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else |
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copycolor(lastc, scanln[x]); |
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if (original) |
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multcolor(scanln[x], exposure); |
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if (!dataonly) |
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printf("%7d %7d ", x, y); |
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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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} |
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} |
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} |
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free((char *)scanln); |
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} |
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|
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|
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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 y; |
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register int x; |
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|
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scanln = (COLOR *)malloc(xres*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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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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} |
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if (fwritescan(scanln, xres, stdout) < 0 |
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|| fflush(stdout) < 0) { |
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fprintf(stderr, "%s: write error\n", progname); |
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quit(1); |
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} |
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} |
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free((char *)scanln); |
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} |
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|
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|
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quit(code) |
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int code; |
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{ |
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exit(code); |
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} |
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|
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|
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getcascii(col, fp) /* get an ascii color value from fp */ |
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COLOR col; |
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FILE *fp; |
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{ |
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double vd[3]; |
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|
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if (fscanf(fp, "%lf %lf %lf", &vd[0], &vd[1], &vd[2]) != 3) |
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return(-1); |
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setcolor(col, vd[0], vd[1], vd[2]); |
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return(0); |
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} |
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|
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|
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getcdouble(col, fp) /* get a double color value from fp */ |
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COLOR col; |
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FILE *fp; |
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{ |
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double vd[3]; |
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|
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if (fread((char *)vd, sizeof(double), 3, fp) != 3) |
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return(-1); |
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setcolor(col, vd[0], vd[1], vd[2]); |
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return(0); |
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} |
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|
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|
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getcfloat(col, fp) /* get a float color value from fp */ |
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COLOR col; |
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FILE *fp; |
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{ |
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float vf[3]; |
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|
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if (fread((char *)vf, sizeof(float), 3, fp) != 3) |
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return(-1); |
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setcolor(col, vf[0], vf[1], vf[2]); |
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return(0); |
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} |
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|
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|
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getcint(col, fp) /* get an int color value from fp */ |
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COLOR col; |
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FILE *fp; |
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{ |
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int vi[3]; |
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|
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if (fscanf(fp, "%d %d %d", &vi[0], &vi[1], &vi[2]) != 3) |
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return(-1); |
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setcolor(col,(vi[0]+.5)/256.,(vi[1]+.5)/256.,(vi[2]+.5)/256.); |
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return(0); |
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} |
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|
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|
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getcbyte(col, fp) /* get a byte color value from fp */ |
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COLOR col; |
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FILE *fp; |
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{ |
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BYTE vb[3]; |
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|
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if (fread((char *)vb, sizeof(BYTE), 3, fp) != 3) |
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return(-1); |
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setcolor(col,(vb[0]+.5)/256.,(vb[1]+.5)/256.,(vb[2]+.5)/256.); |
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return(0); |
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} |
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|
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|
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getbascii(col, fp) /* get an ascii brightness value from fp */ |
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COLOR col; |
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FILE *fp; |
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{ |
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double vd; |
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|
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if (fscanf(fp, "%lf", &vd) != 1) |
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return(-1); |
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setcolor(col, vd, vd, vd); |
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return(0); |
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} |
362 |
|
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|
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getbdouble(col, fp) /* get a double brightness value from fp */ |
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COLOR col; |
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FILE *fp; |
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{ |
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double vd; |
369 |
|
370 |
if (fread((char *)&vd, sizeof(double), 1, fp) != 1) |
371 |
return(-1); |
372 |
setcolor(col, vd, vd, vd); |
373 |
return(0); |
374 |
} |
375 |
|
376 |
|
377 |
getbfloat(col, fp) /* get a float brightness value from fp */ |
378 |
COLOR col; |
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FILE *fp; |
380 |
{ |
381 |
float vf; |
382 |
|
383 |
if (fread((char *)&vf, sizeof(float), 1, fp) != 1) |
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return(-1); |
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setcolor(col, vf, vf, vf); |
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return(0); |
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} |
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|
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|
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getbint(col, fp) /* get an int brightness value from fp */ |
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COLOR col; |
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FILE *fp; |
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{ |
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int vi; |
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double d; |
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|
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if (fscanf(fp, "%d", &vi) != 1) |
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return(-1); |
399 |
d = (vi+.5)/256.; |
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setcolor(col, d, d, d); |
401 |
return(0); |
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} |
403 |
|
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|
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getbbyte(col, fp) /* get a byte brightness value from fp */ |
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COLOR col; |
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FILE *fp; |
408 |
{ |
409 |
BYTE vb; |
410 |
double d; |
411 |
|
412 |
if (fread((char *)&vb, sizeof(BYTE), 1, fp) != 1) |
413 |
return(-1); |
414 |
d = (vb+.5)/256.; |
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setcolor(col, d, d, d); |
416 |
return(0); |
417 |
} |
418 |
|
419 |
|
420 |
putcascii(col, fp) /* put an ascii color to fp */ |
421 |
COLOR col; |
422 |
FILE *fp; |
423 |
{ |
424 |
fprintf(fp, "%15.3e %15.3e %15.3e\n", |
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colval(col,RED), |
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colval(col,GRN), |
427 |
colval(col,BLU)); |
428 |
|
429 |
return(ferror(fp) ? -1 : 0); |
430 |
} |
431 |
|
432 |
|
433 |
putcfloat(col, fp) /* put a float color to fp */ |
434 |
COLOR col; |
435 |
FILE *fp; |
436 |
{ |
437 |
float vf[3]; |
438 |
|
439 |
vf[0] = colval(col,RED); |
440 |
vf[1] = colval(col,GRN); |
441 |
vf[2] = colval(col,BLU); |
442 |
fwrite((char *)vf, sizeof(float), 3, fp); |
443 |
|
444 |
return(ferror(fp) ? -1 : 0); |
445 |
} |
446 |
|
447 |
|
448 |
putcdouble(col, fp) /* put a double color to fp */ |
449 |
COLOR col; |
450 |
FILE *fp; |
451 |
{ |
452 |
double vd[3]; |
453 |
|
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vd[0] = colval(col,RED); |
455 |
vd[1] = colval(col,GRN); |
456 |
vd[2] = colval(col,BLU); |
457 |
fwrite((char *)vd, sizeof(double), 3, fp); |
458 |
|
459 |
return(ferror(fp) ? -1 : 0); |
460 |
} |
461 |
|
462 |
|
463 |
putcint(col, fp) /* put an int color to fp */ |
464 |
COLOR col; |
465 |
FILE *fp; |
466 |
{ |
467 |
fprintf(fp, "%d %d %d\n", |
468 |
(int)(colval(col,RED)*256.), |
469 |
(int)(colval(col,GRN)*256.), |
470 |
(int)(colval(col,BLU)*256.)); |
471 |
|
472 |
return(ferror(fp) ? -1 : 0); |
473 |
} |
474 |
|
475 |
|
476 |
putcbyte(col, fp) /* put a byte color to fp */ |
477 |
COLOR col; |
478 |
FILE *fp; |
479 |
{ |
480 |
register int i; |
481 |
BYTE vb[3]; |
482 |
|
483 |
i = colval(col,RED)*256.; |
484 |
vb[0] = min(i,255); |
485 |
i = colval(col,GRN)*256.; |
486 |
vb[1] = min(i,255); |
487 |
i = colval(col,BLU)*256.; |
488 |
vb[2] = min(i,255); |
489 |
fwrite((char *)vb, sizeof(BYTE), 3, fp); |
490 |
|
491 |
return(ferror(fp) ? -1 : 0); |
492 |
} |
493 |
|
494 |
|
495 |
putbascii(col, fp) /* put an ascii brightness to fp */ |
496 |
COLOR col; |
497 |
FILE *fp; |
498 |
{ |
499 |
fprintf(fp, "%15.3e\n", bright(col)); |
500 |
|
501 |
return(ferror(fp) ? -1 : 0); |
502 |
} |
503 |
|
504 |
|
505 |
putbfloat(col, fp) /* put a float brightness to fp */ |
506 |
COLOR col; |
507 |
FILE *fp; |
508 |
{ |
509 |
float vf; |
510 |
|
511 |
vf = bright(col); |
512 |
fwrite((char *)&vf, sizeof(float), 1, fp); |
513 |
|
514 |
return(ferror(fp) ? -1 : 0); |
515 |
} |
516 |
|
517 |
|
518 |
putbdouble(col, fp) /* put a double brightness to fp */ |
519 |
COLOR col; |
520 |
FILE *fp; |
521 |
{ |
522 |
double vd; |
523 |
|
524 |
vd = bright(col); |
525 |
fwrite((char *)&vd, sizeof(double), 1, fp); |
526 |
|
527 |
return(ferror(fp) ? -1 : 0); |
528 |
} |
529 |
|
530 |
|
531 |
putbint(col, fp) /* put an int brightness to fp */ |
532 |
COLOR col; |
533 |
FILE *fp; |
534 |
{ |
535 |
fprintf(fp, "%d\n", (int)(bright(col)*256.)); |
536 |
|
537 |
return(ferror(fp) ? -1 : 0); |
538 |
} |
539 |
|
540 |
|
541 |
putbbyte(col, fp) /* put a byte brightness to fp */ |
542 |
COLOR col; |
543 |
FILE *fp; |
544 |
{ |
545 |
register int i; |
546 |
BYTE vb; |
547 |
|
548 |
i = bright(col)*256.; |
549 |
vb = min(i,255); |
550 |
fwrite((char *)&vb, sizeof(BYTE), 1, fp); |
551 |
|
552 |
return(ferror(fp) ? -1 : 0); |
553 |
} |
554 |
|
555 |
|
556 |
set_io() /* set put and get functions */ |
557 |
{ |
558 |
switch (format) { |
559 |
case 'a': /* ascii */ |
560 |
if (brightonly) { |
561 |
getval = getbascii; |
562 |
putval = putbascii; |
563 |
} else { |
564 |
getval = getcascii; |
565 |
putval = putcascii; |
566 |
} |
567 |
return; |
568 |
case 'f': /* binary float */ |
569 |
if (brightonly) { |
570 |
getval = getbfloat; |
571 |
putval = putbfloat; |
572 |
} else { |
573 |
getval = getcfloat; |
574 |
putval = putcfloat; |
575 |
} |
576 |
return; |
577 |
case 'd': /* binary double */ |
578 |
if (brightonly) { |
579 |
getval = getbdouble; |
580 |
putval = putbdouble; |
581 |
} else { |
582 |
getval = getcdouble; |
583 |
putval = putcdouble; |
584 |
} |
585 |
return; |
586 |
case 'i': /* integer */ |
587 |
if (brightonly) { |
588 |
getval = getbint; |
589 |
putval = putbint; |
590 |
} else { |
591 |
getval = getcint; |
592 |
putval = putcint; |
593 |
} |
594 |
return; |
595 |
case 'b': /* byte */ |
596 |
if (brightonly) { |
597 |
getval = getbbyte; |
598 |
putval = putbbyte; |
599 |
} else { |
600 |
getval = getcbyte; |
601 |
putval = putcbyte; |
602 |
} |
603 |
return; |
604 |
} |
605 |
} |