wlsunset/color_math.h

29 lines
542 B
C
Raw Normal View History

2020-09-13 01:22:18 +00:00
#ifndef _COLOR_MATH_H
#define _COLOR_MATH_H
#include "math.h"
2020-10-14 15:57:34 +00:00
#include "time.h"
// These are macros so they can be applied to constants
#define DEGREES(rad) ((rad) * 180.0 / M_PI)
#define RADIANS(deg) ((deg) * M_PI / 180.0)
enum sun_condition {
NORMAL,
MIDNIGHT_SUN,
POLAR_NIGHT,
SUN_CONDITION_LAST
};
2020-10-14 15:57:34 +00:00
struct sun {
time_t dawn;
time_t sunrise;
time_t sunset;
time_t dusk;
};
enum sun_condition calc_sun(struct tm *tm, double latitude, struct sun *sun);
2020-09-13 01:22:18 +00:00
void calc_whitepoint(int temp, double *rw, double *gw, double *bw);
#endif