1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
# Copyright (c) AT&T Corp. 1994, 1995.
# This code is licensed by AT&T Corp. For the
# terms and conditions of the license, see
# http://www.research.att.com/orgs/ssr/book/reuse
function rgb_to_hsb(r,g,b) {
r = r / 255.0; g = g / 255.0; b = b / 255.0;
max = r; if (max < g) max = g; if (max < b) max = b;
min = r; if (min > g) min = g; if (min > b) min = b;
v = max;
if (max != 0) s = (max - min) / max;
else s = 0;
if (s == 0) h = 0;
else {
delta = max - min;
rc = (max - r)/delta;
gc = (max - g)/delta;
bc = (max - b)/delta;
if (r == max) h = bc - gc;
else {
if (g == max) h = 2.0 + (rc - bc);
else h = 4.0 + (gc - rc);
}
h = h * 60.0;
if (h < 0.0) h = h + 360.0;
}
h = h / 360.0 * 255.0;
s = s * 255.0;
v = v * 255.0;
}
BEGIN { s = ARGV[1]; gsub("\\.","_",s); printf("hsbcolor_t %s[] = {\n",s); }
/^$/ { next; }
/^#/ { next; }
{
rgb_to_hsb($2,$3,$4);
printf("{\"%s\",%d,%d,%d},\n",$1,h,s,v);
}
END { printf("};\n"); }
|
