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feat: allow configuring fpu for rgb conversion

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This commit is contained in:
coltontcrowe 2021-10-04 02:56:21 +00:00
parent 63c60b689e
commit 7dc8c8fdff
1 changed files with 51 additions and 0 deletions
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51
app/src/rgb_underglow.c
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@ -57,6 +57,56 @@ static struct rgb_underglow_state state;
static const struct device *ext_power;
#endif
#if IS_ENABLED(CONFIG_FPU)
static struct led_rgb hsb_to_rgb(struct zmk_led_hsb hsb) {
double r, g, b;
uint8_t i = hsb.h / 60;
double v = hsb.b / ((float)BRT_MAX);
double s = hsb.s / ((float)SAT_MAX);
double f = hsb.h / ((float)HUE_MAX) * 6 - i;
double p = v * (1 - s);
double q = v * (1 - f * s);
double t = v * (1 - (1 - f) * s);
switch (i % 6) {
case 0:
r = v;
g = t;
b = p;
break;
case 1:
r = q;
g = v;
b = p;
break;
case 2:
r = p;
g = v;
b = t;
break;
case 3:
r = p;
g = q;
b = v;
break;
case 4:
r = t;
g = p;
b = v;
break;
case 5:
r = v;
g = p;
b = q;
break;
}
struct led_rgb rgb = {r : r * 255, g : g * 255, b : b * 255};
return rgb;
}
#else
static struct led_rgb hsb_to_rgb(struct zmk_led_hsb hsb) {
uint8_t i = hsb.h / DEG_SEG;
uint8_t f = hsb.h % DEG_SEG;
@ -102,6 +152,7 @@ static struct led_rgb hsb_to_rgb(struct zmk_led_hsb hsb) {
return rgb;
}
#endif
static void zmk_rgb_underglow_effect_solid() {
for (int i = 0; i < STRIP_NUM_PIXELS; i++) {