hsv2rgb.h

#ifndef __INC_HSV2RGB_H
#define __INC_HSV2RGB_H

#include "pixeltypes.h"


// hsv2rgb_rainbow - convert a hue, saturation, and value to RGB
//                   using a visually balanced rainbow (vs a straight
//                   mathematical spectrum).
//                   This 'rainbow' yields better yellow and orange
//                   than a straight 'spectrum'.
//
//                   NOTE: here hue is 0-255, not just 0-191

void hsv2rgb_rainbow( const struct CHSV& hsv, struct CRGB& rgb);
void hsv2rgb_rainbow( const struct CHSV* phsv, struct CRGB * prgb, int numLeds);
#define HUE_MAX_RAINBOW 255


// hsv2rgb_spectrum - convert a hue, saturation, and value to RGB
//                    using a mathematically straight spectrum (vs
//                    a visually balanced rainbow).
//                    This 'spectrum' will have more green & blue
//                    than a 'rainbow', and less yellow and orange.
//
//                    NOTE: here hue is 0-255, not just 0-191

void hsv2rgb_spectrum( const struct CHSV& hsv, struct CRGB& rgb);
void hsv2rgb_spectrum( const struct CHSV* phsv, struct CRGB * prgb, int numLeds);
#define HUE_MAX_SPECTRUM 255


// hsv2rgb_raw - convert hue, saturation, and value to RGB.
//               This 'spectrum' conversion will be more green & blue
//               than a real 'rainbow', and the hue is specified just
//               in the range 0-191.  Together, these result in a
//               slightly faster conversion speed, at the expense of
//               color balance.
//
//               NOTE: Hue is 0-191 only!
//               Saturation & value are 0-255 each.
//

void hsv2rgb_raw(const struct CHSV& hsv, struct CRGB & rgb);
void hsv2rgb_raw(const struct CHSV* phsv, struct CRGB * prgb, int numLeds);
#define HUE_MAX 191


// fill_solid -   fill a range of LEDs with a solid color
void fill_solid( struct CRGB * pFirstLED, int numToFill,
                 const struct CRGB& color);

// fill_rainbow - fill a range of LEDs with a rainbow of colors, at
//                full saturation and full value (brightness)
void fill_rainbow( struct CRGB * pFirstLED, int numToFill,
                   uint8_t initialhue,
                   uint8_t deltahue = 5);

#endif