Sha256: 12b93e9a26d3b989dfb8914e27a51e329e02ea3b07af26431721f8ed1a9ba7a7
Contents?: true
Size: 750 Bytes
Versions: 11
Compression:
Stored size: 750 Bytes
Contents
#include "psd_native_ext.h"
VALUE psd_native_cmyk_to_rgb(VALUE self, VALUE c, VALUE m, VALUE y, VALUE k) {
int r, g, b;
r = psd_clamp_int((65535 - (FIX2INT(c) * (255 - FIX2INT(k)) + (FIX2INT(k) << 8))) >> 8, 0, 255);
g = psd_clamp_int((65535 - (FIX2INT(m) * (255 - FIX2INT(k)) + (FIX2INT(k) << 8))) >> 8, 0, 255);
b = psd_clamp_int((65535 - (FIX2INT(y) * (255 - FIX2INT(k)) + (FIX2INT(k) << 8))) >> 8, 0, 255);
VALUE result = rb_hash_new();
rb_hash_aset(result, ID2SYM(rb_intern("r")), INT2FIX(r));
rb_hash_aset(result, ID2SYM(rb_intern("g")), INT2FIX(g));
rb_hash_aset(result, ID2SYM(rb_intern("b")), INT2FIX(b));
return result;
}
int psd_clamp_int(int n, int low, int high) {
return n < low ? low : (n > high ? high : n);
}
Version data entries
11 entries across 11 versions & 2 rubygems