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/* See LICENSE file for copyright and license details. */
#include "common.h"
USAGE("[-% format] [-d depth] [-l] red green blue")
int
main(int argc, char *argv[])
{
unsigned long long int max;
double red, green, blue, X, Y, Z;
int depth = 8, linear = 0;
const char *fmt = NULL;
ARGBEGIN {
case 'd':
depth = etoi_flag('d', UARGF(), 1, 64);
break;
case 'l':
linear = 1;
break;
case '%':
fmt = UARGF();
break;
default:
usage();
} ARGEND;
if (argc != 3)
usage();
fmt = select_print_format("%! %! %!\n", DOUBLE, fmt);
max = 1ULL << (depth - 1);
max |= max - 1;
red = etolf_arg("the red value", argv[0]) / (double)max;
green = etolf_arg("the green value", argv[1]) / (double)max;
blue = etolf_arg("the blue value", argv[2]) / (double)max;
if (!linear) {
red = srgb_decode(red);
green = srgb_decode(green);
blue = srgb_decode(blue);
}
srgb_to_ciexyz(red, green, blue, &X, &Y, &Z);
printf(fmt, X, Y, Z);
efshut(stdout, "<stdout>");
return 0;
}
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