public void ConvertFromRGB(Colorf rgb)
{
this.a = rgb.a;
float rp = rgb.r, gp = rgb.g, bp = rgb.b;
float cmax = rp;
int cmaxwhich = 0; /* faster comparison afterwards */
if (gp > cmax)
{
cmax = gp; cmaxwhich = 1;
}
if (bp > cmax)
{
cmax = bp; cmaxwhich = 2;
}
float cmin = rp;
//int cminwhich = 0;
if (gp < cmin)
{
cmin = gp; /*cminwhich = 1;*/
}
if (bp < cmin)
{
cmin = bp; /*cminwhich = 2;*/
}
float delta = cmax - cmin;
/* HUE */
if (delta == 0)
{
this.h = 0;
}
else
{
switch (cmaxwhich)
{
case 0: /* cmax == rp */
h = 60.0f * (((gp - bp) / delta) % 6.0f);
break;
case 1: /* cmax == gp */
h = 60.0f * (((bp - rp) / delta) + 2);
break;
case 2: /* cmax == bp */
h = 60.0f * (((rp - gp) / delta) + 4);
break;
}
if (h < 0)
{
h += 360.0f;
}
}
/* LIGHTNESS/VALUE */
//l = (cmax + cmin) / 2;
v = cmax;
/* SATURATION */
/*if (delta == 0) {
* r_s = 0;
* } else {
* r_s = delta / (1 - fabs (1 - (2 * (l - 1))));
* }*/
if (cmax == 0)
{
s = 0;
}
else
{
s = delta / cmax;
}
}
public ColorHSV(Colorf rgb)
{
ConvertFromRGB(rgb);
}
