void expr_handler::apply_alu_dst_mod(const bc_alu &bc, literal &v) {
const float omod_coeff[] = {2.0f, 4.0, 0.5f};
if (bc.omod)
v = v.f * omod_coeff[bc.omod - 1];
if (bc.clamp)
v = float_clamp(v.f);
}
color_t
color_saddHSV(color_t a, float hx, float sx, float vx)
{
const float normd = color_get_normd();
const float normf = color_get_normf();
float r = (float)color_getR(a) * normf; /* normalize red */
float g = (float)color_getG(a) * normf; /* normalize green */
float b = (float)color_getB(a) * normf; /* normalize blue */
float h, s, v; /* temporary HSV */
float_convert_RGB2HSV(r, g, b, &h, &s, &v); /* convert */
h = float_clamp(0.0, h + hx, 1.0); /* shift hue */
s = float_clamp(0.0, s + sx, 1.0); /* shift saturation */
v = float_clamp(0.0, v + vx, 1.0); /* shift value */
float_convert_HSV2RGB(h, s, v, &r, &g, &b); /* convert back */
int r8 = r * normd;
int g8 = g * normd;
int b8 = b * normd;
return color_genRGBA(r8, g8, b8, color_getA(a));
}
