ctempd.h

#ifndef _CTEMP_H
#define _CTEMP_H

#define AVG(c) whitepoints[temp / 500].c * (1 - ratio) + whitepoints[temp / 500 + 1].c * ratio
#define TEMP_DEFAULT 4500
#define SLEEP 60

/* cribbed from redshift, but truncated with 500K steps */
static const struct { float r; float g; float b; } whitepoints[] = {
	{ 1.00000000,  0.18172716,  0.00000000, }, /* 1000K */
	{ 1.00000000,  0.42322816,  0.00000000, },
	{ 1.00000000,  0.54360078,  0.08679949, },
	{ 1.00000000,  0.64373109,  0.28819679, },
	{ 1.00000000,  0.71976951,  0.42860152, },
	{ 1.00000000,  0.77987699,  0.54642268, },
	{ 1.00000000,  0.82854786,  0.64816570, },
	{ 1.00000000,  0.86860704,  0.73688797, },
	{ 1.00000000,  0.90198230,  0.81465502, },
	{ 1.00000000,  0.93853986,  0.88130458, },
	{ 1.00000000,  0.97107439,  0.94305985, },
	{ 1.00000000,  1.00000000,  1.00000000, }, /* 6500K */
	{ 0.95160805,  0.96983355,  1.00000000, },
	{ 0.91194747,  0.94470005,  1.00000000, },
	{ 0.87906581,  0.92357340,  1.00000000, },
	{ 0.85139976,  0.90559011,  1.00000000, },
	{ 0.82782969,  0.89011714,  1.00000000, },
	{ 0.80753191,  0.87667891,  1.00000000, },
	{ 0.78988728,  0.86491137,  1.00000000, }, /* 10000K */
	{ 0.77442176,  0.85453121,  1.00000000, },
};

void show_usage(void);
void set_color(int);
void daemonize(int);
int sandbox(void);

#endif