ref: 99f6620b2cbfab36556a4c2d6c7a0f428fbe268d
dir: picker/hsluv.h
/*
* HSLuv-C: Human-friendly HSL
* <http://github.com/hsluv/hsluv-c>
* <http://www.hsluv.org/>
*
* Copyright (c) 2015 Alexei Boronine (original idea, JavaScript implementation)
* Copyright (c) 2015 Roger Tallada (Obj-C implementation)
* Copyright (c) 2017 Martin Mitas (C implementation, based on Obj-C implementation)
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef HSLUV_H
#define HSLUV_H
#ifdef __cplusplus
extern "C" {
#endif
/**
* Convert HSLuv to RGB.
*
* @param h Hue. Between 0.0 and 360.0.
* @param s Saturation. Between 0.0 and 100.0.
* @param l Lightness. Between 0.0 and 100.0.
* @param[out] pr Red component. Between 0.0 and 1.0.
* @param[out] pg Green component. Between 0.0 and 1.0.
* @param[out] pb Blue component. Between 0.0 and 1.0.
*/
void hsluv2rgb(double h, double s, double l, double* pr, double* pg, double* pb);
/**
* Convert RGB to HSLuv.
*
* @param r Red component. Between 0.0 and 1.0.
* @param g Green component. Between 0.0 and 1.0.
* @param b Blue component. Between 0.0 and 1.0.
* @param[out] ph Hue. Between 0.0 and 360.0.
* @param[out] ps Saturation. Between 0.0 and 100.0.
* @param[out] pl Lightness. Between 0.0 and 100.0.
*/
void rgb2hsluv(double r, double g, double b, double* ph, double* ps, double* pl);
/**
* Convert HPLuv to RGB.
*
* @param h Hue. Between 0.0 and 360.0.
* @param s Saturation. Between 0.0 and 100.0.
* @param l Lightness. Between 0.0 and 100.0.
* @param[out] pr Red component. Between 0.0 and 1.0.
* @param[out] pg Green component. Between 0.0 and 1.0.
* @param[out] pb Blue component. Between 0.0 and 1.0.
*/
void hpluv2rgb(double h, double s, double l, double* pr, double* pg, double* pb);
/**
* Convert RGB to HPLuv.
*
* @param r Red component. Between 0.0 and 1.0.
* @param g Green component. Between 0.0 and 1.0.
* @param b Blue component. Between 0.0 and 1.0.
* @param[out] ph Hue. Between 0.0 and 360.0.
* @param[out] ps Saturation. Between 0.0 and 100.0.
* @param[out] pl Lightness. Between 0.0 and 100.0.
*/
void rgb2hpluv(double r, double g, double b, double* ph, double* ps, double* pl);
#ifdef __cplusplus
}
#endif
#endif /* HSLUV_H */