rgb_2_rgbw_white_boosted()

void fl::rgb_2_rgbw_white_boosted	(	uint16_t	w_color_temperature,
		uint8_t	r,
		uint8_t	g,
		uint8_t	b,
		uint8_t	r_scale,
		uint8_t	g_scale,
		uint8_t	b_scale,
		uint8_t *	out_r,
		uint8_t *	out_g,
		uint8_t *	out_b,
		uint8_t *	out_w )

Converts RGB to RGBW with a boosted white channel.

Definition at line 79 of file rgbw.cpp.

                                                                              {
    (void)w_color_temperature;
    r = scale8(r, r_scale);
    g = scale8(g, g_scale);
    b = scale8(b, b_scale);
    uint8_t min_component = min3(r, g, b);
    uint8_t w;
    bool is_min = true;
    if (min_component <= 84) {
        w = 3 * min_component;
    } else {
        w = 255;
        is_min = false;
    }
    uint8_t r_prime;
    uint8_t g_prime;
    uint8_t b_prime;
    if (is_min) {
        r_prime = r - min_component;
        g_prime = g - min_component;
        b_prime = b - min_component;
    } else {
        uint8_t w3 = divide_by_3(w);
        r_prime = r - w3;
        g_prime = g - w3;
        b_prime = b - w3;
    }
 
    *out_r = r_prime;
    *out_g = g_prime;
    *out_b = b_prime;
    *out_w = w;
}

References scale8().

Referenced by rgb_2_rgbw().

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