+void hsv2rgb_normalized(float h, float s, float v, float *r, float *g, float *b)
+{
+ float ref_r, ref_g, ref_b;
+ hsv2rgb(h, s, v, r, g, b);
+ hsv2rgb(h, 0.0f, v, &ref_r, &ref_g, &ref_b);
+ float lum = 0.2126 * *r + 0.7152 * *g + 0.0722 * *b;
+ float ref_lum = 0.2126 * ref_r + 0.7152 * ref_g + 0.0722 * ref_b;
+ if (lum > 1e-3) {
+ float fac = ref_lum / lum;
+ *r *= fac;
+ *g *= fac;
+ *b *= fac;
+ }
+}
+