Move source and headers to src dir.

1 files changed, 50 insertions, 0 deletions

diff --git a/src/solar.h b/src/solar.h
new file mode 100644
index 0000000..5897373
--- /dev/null
+++ b/src/solar.h
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+/* solar.h -- Solar position header
+   This file is part of Redshift.
+
+   Redshift is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Redshift is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Redshift.  If not, see <http://www.gnu.org/licenses/>.
+
+   Copyright (c) 2009  Jon Lund Steffensen <jonlst@gmail.com>
+*/
+
+#ifndef _SOLAR_H
+#define _SOLAR_H
+
+#include <time.h>
+
+/* Model of atmospheric refraction near horizon (in degrees). */
+#define SOLAR_ATM_REFRAC  0.833
+
+#define SOLAR_ASTRO_TWILIGHT_ELEV   -18.0
+#define SOLAR_NAUT_TWILIGHT_ELEV    -12.0
+#define SOLAR_CIVIL_TWILIGHT_ELEV    -6.0
+#define SOLAR_DAYTIME_ELEV           (0.0 - SOLAR_ATM_REFRAC)
+
+typedef enum {
+	SOLAR_TIME_NOON = 0,
+	SOLAR_TIME_MIDNIGHT,
+	SOLAR_TIME_ASTRO_DAWN,
+	SOLAR_TIME_NAUT_DAWN,
+	SOLAR_TIME_CIVIL_DAWN,
+	SOLAR_TIME_SUNRISE,
+	SOLAR_TIME_SUNSET,
+	SOLAR_TIME_CIVIL_DUSK,
+	SOLAR_TIME_NAUT_DUSK,
+	SOLAR_TIME_ASTRO_DUSK,
+	SOLAR_TIME_MAX
+} solar_time_t;
+
+double solar_elevation(time_t t, double lat, double lon);
+void solar_table_fill(time_t date, double lat, double lon, time_t *table);
+
+#endif /* ! _SOLAR_H */