File content as of revision 0:a81364d9a67b:

#ifndef HSL_H
#define HSL_H

//
// Utilities for working with colors in different color spaces
//

#include "mbed.h"

// all values 0 to 1

// adapted from: https://github.com/ratkins/RGBConverter

struct FloatRGB {
    float r;
    float g;
    float b;
};


struct FloatHSL {
    float h;
    float s;
    float l;
};


struct FloatHSV {
    float h;
    float s;
    float v;
};


// --- Converting to RGB hex ---

/** Convert HSL to RGB hex */
uint32_t hsl2hex(const FloatHSL *hsl);

/** Convert HSV to RGB hex */
uint32_t hsv2hex(const FloatHSV *hsv);

/** Convert RGB to RGB hex */
uint32_t rgb2hex(FloatRGB *rgb);


// --- Itner-space conversion functions ---

/** Convert HSL to RGB */
void hsl2rgb(const FloatHSL *hsl, FloatRGB *rgb);

/** Convert RGB to HSL */
void rgb2hsl(const FloatRGB *rgb, FloatHSL *hsl);

/** Convert from HSV to HSL */
void hsv2hsl(const FloatHSV *hsv, FloatHSL *hsl);

/** Convert from HSL to HSV */
void hsl2hsv(const FloatHSL *hsl, FloatHSV *hsv);

/** Convert HSV to RGB ("handy" algo) */
void hsv2rgb(const FloatHSV *hsv, FloatRGB *rgb);

#endif /* HSL_H */