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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; /* unique values? */ |
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|
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int original = 0; /* 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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|
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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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|
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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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break; |
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case 'i': /* integer */ |
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case 'b': /* byte */ |
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case 'f': /* float */ |
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case 'd': /* double */ |
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format = argv[i][2]; |
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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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|
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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 (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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quit(1); |
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} |
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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); |
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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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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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if (header) |
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fputs(line, stdout); |
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if (!strncmp(line, "EXPOSURE=", 9)) |
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exposure *= atof(line+9); |
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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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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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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(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(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(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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} |
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|
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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; |
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|
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if (fread(&vd, sizeof(double), 1, fp) != 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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} |
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|
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|
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getbfloat(col, fp) /* get a float brightness 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; |
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|
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if (fread(&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); |
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d = (vi+.5)/256.; |
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setcolor(col, d, d, d); |
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return(0); |
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} |
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|
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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; |
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{ |
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BYTE vb; |
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double d; |
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|
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if (fread(&vb, sizeof(BYTE), 1, fp) != 1) |
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return(-1); |
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d = (vb+.5)/256.; |
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setcolor(col, d, d, d); |
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return(0); |
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} |
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|
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|
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putcascii(col, fp) /* put an ascii color to fp */ |
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COLOR col; |
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FILE *fp; |
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{ |
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fprintf(fp, "%15.3e %15.3e %15.3e\n", |
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colval(col,RED), |
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colval(col,GRN), |
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colval(col,BLU)); |
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|
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return(ferror(fp) ? -1 : 0); |
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} |
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|
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|
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putcfloat(col, fp) /* put a float color to 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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vf[0] = colval(col,RED); |
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vf[1] = colval(col,GRN); |
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vf[2] = colval(col,BLU); |
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fwrite(vf, sizeof(float), 3, fp); |
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|
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return(ferror(fp) ? -1 : 0); |
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} |
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|
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|
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putcdouble(col, fp) /* put a double color to 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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vd[0] = colval(col,RED); |
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vd[1] = colval(col,GRN); |
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vd[2] = colval(col,BLU); |
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fwrite(vd, sizeof(double), 3, fp); |
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|
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return(ferror(fp) ? -1 : 0); |
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} |
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|
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|
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putcint(col, fp) /* put an int color to fp */ |
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COLOR col; |
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FILE *fp; |
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{ |
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fprintf(fp, "%d %d %d\n", |
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(int)(colval(col,RED)*256.), |
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(int)(colval(col,GRN)*256.), |
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(int)(colval(col,BLU)*256.)); |
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|
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return(ferror(fp) ? -1 : 0); |
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} |
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|
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|
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putcbyte(col, fp) /* put a byte color to fp */ |
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COLOR col; |
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FILE *fp; |
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{ |
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register int i; |
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BYTE vb[3]; |
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|
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i = colval(col,RED)*256.; |
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vb[0] = min(i,255); |
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i = colval(col,GRN)*256.; |
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vb[1] = min(i,255); |
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i = colval(col,BLU)*256.; |
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vb[2] = min(i,255); |
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fwrite(vb, sizeof(BYTE), 3, fp); |
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|
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return(ferror(fp) ? -1 : 0); |
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} |
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|
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|
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putbascii(col, fp) /* put an ascii brightness to fp */ |
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COLOR col; |
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FILE *fp; |
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{ |
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fprintf(fp, "%15.3e\n", bright(col)); |
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|
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return(ferror(fp) ? -1 : 0); |
459 |
} |
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|
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|
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putbfloat(col, fp) /* put a float brightness to fp */ |
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COLOR col; |
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FILE *fp; |
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{ |
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float vf; |
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|
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vf = bright(col); |
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fwrite(&vf, sizeof(float), 1, fp); |
470 |
|
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return(ferror(fp) ? -1 : 0); |
472 |
} |
473 |
|
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|
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putbdouble(col, fp) /* put a double brightness to fp */ |
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COLOR col; |
477 |
FILE *fp; |
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{ |
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double vd; |
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|
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vd = bright(col); |
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fwrite(&vd, sizeof(double), 1, fp); |
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|
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return(ferror(fp) ? -1 : 0); |
485 |
} |
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|
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|
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putbint(col, fp) /* put an int brightness to fp */ |
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COLOR col; |
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FILE *fp; |
491 |
{ |
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fprintf(fp, "%d\n", (int)(bright(col)*256.)); |
493 |
|
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return(ferror(fp) ? -1 : 0); |
495 |
} |
496 |
|
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|
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putbbyte(col, fp) /* put a byte brightness to fp */ |
499 |
COLOR col; |
500 |
FILE *fp; |
501 |
{ |
502 |
register int i; |
503 |
BYTE vb; |
504 |
|
505 |
i = bright(col)*256.; |
506 |
vb = min(i,255); |
507 |
fwrite(&vb, sizeof(BYTE), 1, fp); |
508 |
|
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return(ferror(fp) ? -1 : 0); |
510 |
} |
511 |
|
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|
513 |
set_io() /* set put and get functions */ |
514 |
{ |
515 |
switch (format) { |
516 |
case 'a': /* ascii */ |
517 |
if (brightonly) { |
518 |
getval = getbascii; |
519 |
putval = putbascii; |
520 |
} else { |
521 |
getval = getcascii; |
522 |
putval = putcascii; |
523 |
} |
524 |
return; |
525 |
case 'f': /* binary float */ |
526 |
if (brightonly) { |
527 |
getval = getbfloat; |
528 |
putval = putbfloat; |
529 |
} else { |
530 |
getval = getcfloat; |
531 |
putval = putcfloat; |
532 |
} |
533 |
return; |
534 |
case 'd': /* binary double */ |
535 |
if (brightonly) { |
536 |
getval = getbdouble; |
537 |
putval = putbdouble; |
538 |
} else { |
539 |
getval = getcdouble; |
540 |
putval = putcdouble; |
541 |
} |
542 |
return; |
543 |
case 'i': /* integer */ |
544 |
if (brightonly) { |
545 |
getval = getbint; |
546 |
putval = putbint; |
547 |
} else { |
548 |
getval = getcint; |
549 |
putval = putcint; |
550 |
} |
551 |
return; |
552 |
case 'b': /* byte */ |
553 |
if (brightonly) { |
554 |
getval = getbbyte; |
555 |
putval = putbbyte; |
556 |
} else { |
557 |
getval = getcbyte; |
558 |
putval = putcbyte; |
559 |
} |
560 |
return; |
561 |
} |
562 |
} |