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/** \file
* \brief HSI Color Manipulation
* Copied and adapted from IM
*
* See Copyright Notice in "iup.h"
*/
#ifndef __IUP_COLORHSI_H
#define __IUP_COLORHSI_H
#if defined(__cplusplus)
extern "C" {
#endif
/* 0<=H<=359 */
/* 0<=S<=1 */
/* 0<=I<=1 */
/* Converts from RGB to HSI.
*/
void iupColorRGB2HSI(unsigned char r, unsigned char g, unsigned char b, float *h, float *s, float *i);
/* Converts from HSI to RGB.
*/
void iupColorHSI2RGB(float h, float s, float i, unsigned char *r, unsigned char *g, unsigned char *b);
int iupStrToHSI(const char *str, float *h, float *s, float *i);
#ifdef IUP_DEFMATHFLOAT
#define atan2f(_X, _Y) ((float)atan2((double)_X, (double)_Y))
#define cosf(_X) ((float)cos((double)_X))
#define fmodf(_X, _Y) ((float)fmod((double)_X, (double)_Y))
#define sinf(_X) ((float)sin((double)_X))
#define sqrtf(_X) ((float)sqrt((double)_X))
#endif
#if defined(__cplusplus)
}
#endif
#endif
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