hsv_to_rgb(3alleg4)

✨ NAME ✨

hsv_to_rgb, rgb_to_hsv — bestie, these two are your little color translators between the HSV and RGB color spaces 💖 and yes they live in the Allegro game programming library, ofc.

🌸 SYNOPSIS 🌸

okay so first things first, you gotta invite them in:

#include <allegro.h>

then it's giving function signatures, no cap:

void hsv_to_rgb(float h, float s, float v, int *r, int *g, int *b);

void rgb_to_hsv(int r, int g, int b, float *h, float *s, float *v);

🎀 DESCRIPTION 🎀

So like, the whole vibe here is converting color values between the HSV and RGB color spaces. And the rules are very specific so listen up 🔥:

• RGB values range from 0 to 255
• hue is from 0 to 360
• saturation and value are from 0 to 1

here's the example, literally copied character for character bc I would never do you dirty like that:

int r, g, b;
float hue, saturation, value;
...
/* Convert a reddish color to HSV format. */
rgb_to_hsv(255, 0, 128, &hue, &saturation, &value);

/* Now put our tin foil hat, and verify that. */
hsv_to_rgb(hue, saturation, value, &r, &g, &b);
ASSERT(r == 255);
ASSERT(g == 0);
ASSERT(b == 128);

the way that ASSERT block is just chef's kiss — round trip that color, confirm it came back, main character energy only 💅✨

ngl bestie, always check your pointers are real before you pass them in. dereferencing a NULL is not the slay you think it is 💀

🦋 SEE ALSO 🦋

• exlights(3alleg4)
• exrgbhsv(3alleg4)

go read those too, they're iconic, iykyk 🫶

k bye bestie, this page was brought to you by Allegro, version 4.4.3 🌈⭐💜 — now go convert some colors, you got this fr fr 🧚‍♀️