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Remove redundant code

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jaseg 2022-11-19 14:24:45 +01:00
parent 8ed4ce20a5
commit 4d7a6c3bba
1 changed files with 0 additions and 70 deletions
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70
lolcat.c
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@ -78,12 +78,6 @@ union rgb_c {
unsigned int i;
};
struct hsv_c {
double h;
double s;
double v;
};
#include "xterm256lut.h"
int xterm256lookup(union rgb_c *in) {
@ -102,76 +96,12 @@ int xterm256lookup(union rgb_c *in) {
return 16 + min_i;
}
void rgb2hsv(union rgb_c *in, struct hsv_c *out) {
double r = in->r/255.0, g = in->g/255.0, b = in->b/255.0;
double fCMax = MAX(MAX(r, g), b);
double fCMin = MIN(MIN(r, g), b);
double fDelta = fCMax - fCMin;
out->v = fCMax;
if(fDelta > 0) {
if(fCMax == r) {
out->h = 60 * (fmod(((g - b) / fDelta), 6));
} else if(fCMax == g) {
out->h = 60 * (((b - r) / fDelta) + 2);
} else if(fCMax == b) {
out->h = 60 * (((r - g) / fDelta) + 4);
}
if(out->h < 0) {
out->h = 360 + out->h;
}
out->s = fCMax > 0 ? fDelta / fCMax : 0;
} else {
out->h = 0;
out->s = 0;
}
}
void hsv2rgb(struct hsv_c *in, union rgb_c *out) {
double fC = in->v * in->s;
double fHPrime = fmod(in->h / 60.0, 6);
double fX = fC * (1 - fabs(fmod(fHPrime, 2) - 1));
double fM = in->v - fC;
switch ((int)fHPrime) {
case 0: out->r = (fC + fM)*255; out->g = (fX + fM)*255; out->b = 0; break;
case 1: out->g = (fC + fM)*255; out->r = (fX + fM)*255; out->b = 0; break;
case 2: out->g = (fC + fM)*255; out->b = (fX + fM)*255; out->r = 0; break;
case 3: out->b = (fC + fM)*255; out->g = (fX + fM)*255; out->r = 0; break;
case 4: out->b = (fC + fM)*255; out->r = (fX + fM)*255; out->g = 0; break;
case 5: out->r = (fC + fM)*255; out->b = (fX + fM)*255; out->g = 0; break;
default: out->r = 0; out->g = 0; out->b = 0; break;
}
}
void rgb_interpolate(union rgb_c *start, union rgb_c *end, union rgb_c *out, double f) {
out->r = start->r + (end->r - start->r)*f;
out->g = start->g + (end->g - start->g)*f;
out->b = start->b + (end->b - start->b)*f;
}
void hsv_interpolate(struct hsv_c *start, struct hsv_c *end, union rgb_c *out, double f) {
double hd = end->h - start->h;
if (hd > 180) {
hd -= 360;
} else if (hd < -180) {
hd += 360;
}
struct hsv_c hsv_intermediate = {
.h = start->h + hd*f,
.s = start->s + (end->s - start->s)*f,
.v = start->v + (end->v - start->v)*f};
if (hsv_intermediate.h < 0) {
hsv_intermediate.h += 360;
} else if (hsv_intermediate.h > 360) {
hsv_intermediate.h -= 360;
}
hsv2rgb(&hsv_intermediate, out);
}
static void find_escape_sequences(wint_t c, int* state)
{
if (c == '\033') { /* Escape sequence YAY */