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fits.h

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+/*
+ * This file is part of the loccorr project.
+ * Copyright 2021 Edward V. Emelianov <edward.emelianoff@gmail.com>.
+ *
+ * This program 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.
+ *
+ * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+#ifndef FITS_H__
+#define FITS_H__
+
+#include <fitsio.h>
+#include <omp.h>
+#include <stdio.h>
+#include <stdbool.h>
+
+#define Stringify(x) #x
+#define OMP_FOR(x) _Pragma(Stringify(omp parallel for x))
+
+
+typedef float Imtype; // maybe float or double only
+// this is TFLOAT or TDOUBLE depending on Imtype
+#define FITSDATATYPE    TFLOAT
+/*
+typedef double Imtype;
+#define FITSDATATYPE    TDOUBLE
+*/
+
+typedef struct{
+    int width;			// width
+    int height;			// height
+    int dtype;			// data type for image storage
+    Imtype *data;		// picture data
+    Imtype minval;      // extremal data values
+    Imtype maxval;
+    char **keylist;		// list of options for each key
+    size_t keynum;		// full number of keys (size of *keylist)
+} Image;
+
+void Image_free(Image **ima);
+bool FITS_read(const char *filename, Image **fits);
+bool FITS_write(const char *filename, const Image *fits);
+
+#endif // FITS_H__