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/*********************************************************************
array -- Functions for I/O on arrays (images or cubes)
This is part of GNU Astronomy Utilities (Gnuastro) package.
Original author:
Mohammad Akhlaghi <mohammad@akhlaghi.org>
Contributing author(s):
Copyright (C) 2018-2024 Free Software Foundation, Inc.
Gnuastro 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.
Gnuastro 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 Gnuastro. If not, see <http://www.gnu.org/licenses/>.
**********************************************************************/
#include <config.h>
#include <stdio.h>
#include <errno.h>
#include <error.h>
#include <stdlib.h>
#include <gnuastro/txt.h>
#include <gnuastro/fits.h>
#include <gnuastro/jpeg.h>
#include <gnuastro/tiff.h>
#include <gnuastro/array.h>
/*********************************************************************/
/***************** High-level functions ****************/
/*********************************************************************/
int
gal_array_name_recognized(char *name)
{
if( gal_array_name_recognized_multiext(name) ) return 1;
else if ( gal_jpeg_name_is_jpeg(name) ) return 1;
else return 0;
/* Control should not get to here, but just to avoid compiler warnings,
we'll return a NULL. */
error(EXIT_FAILURE, 0, "%s: a bug! Please contact us at %s to solve the "
"problem. Control must not reach the end of this function", __func__,
PACKAGE_BUGREPORT);
return 0;
}
int
gal_array_name_recognized_multiext(char *name)
{
if( gal_fits_name_is_fits(name) ) return 1;
else if ( gal_tiff_name_is_tiff(name) ) return 1;
else return 0;
/* Control should not get to here, but just to avoid compiler warnings,
we'll return a NULL. */
error(EXIT_FAILURE, 0, "%s: a bug! Please contact us at %s to solve the "
"problem. Control must not reach the end of this function", __func__,
PACKAGE_BUGREPORT);
return 0;
}
int
gal_array_file_recognized(char *name)
{
if( gal_fits_file_recognized(name) ) return 1;
else if ( gal_jpeg_name_is_jpeg(name) ) return 1;
else if ( gal_tiff_name_is_tiff(name) ) return 1;
else return 0;
}
/* Read (all the possibly existing) color channels within each
extension/dir of the given file. */
gal_data_t *
gal_array_read(char *filename, char *extension, gal_list_str_t *lines,
size_t minmapsize, int quietmmap, char *hdu_option_name)
{
size_t ext;
/* FITS */
if( gal_fits_file_recognized(filename) )
return gal_fits_img_read(filename, extension, minmapsize, quietmmap,
hdu_option_name);
/* TIFF */
else if ( gal_tiff_name_is_tiff(filename) )
{
ext=gal_tiff_dir_string_read(extension);
return gal_tiff_read(filename, ext, minmapsize, quietmmap);
}
/* JPEG */
else if ( gal_jpeg_name_is_jpeg(filename) )
return gal_jpeg_read(filename, minmapsize, quietmmap);
/* Default: plain text. */
else
return gal_txt_image_read(filename, lines, minmapsize, quietmmap);
/* Control should not get to here, but just to avoid compiler warnings,
we'll return a NULL. */
error(EXIT_FAILURE, 0, "%s: a bug! Please contact us at %s to solve the "
"problem. Control must not reach the end of this function", __func__,
PACKAGE_BUGREPORT);
return NULL;
}
/* Read the contents of the given file/extension to a specific type. */
gal_data_t *
gal_array_read_to_type(char *filename, char *extension,
gal_list_str_t *lines, uint8_t type,
size_t minmapsize, int quietmmap,
char *hdu_option_name)
{
gal_data_t *out=NULL;
gal_data_t *next, *in=gal_array_read(filename, extension, lines,
minmapsize, quietmmap,
hdu_option_name);
/* Go over all the channels. */
while(in)
{
next=in->next;
in->next=NULL;
gal_list_data_add(&out, gal_data_copy_to_new_type_free(in, type));
in=next;
}
/* Invert the reverse list and return. */
gal_list_data_reverse(&out);
return out;
}
/* Read the input array and make sure it is only one channel. */
gal_data_t *
gal_array_read_one_ch(char *filename, char *extension,
gal_list_str_t *lines, size_t minmapsize,
int quietmmap, char *hdu_option_name)
{
char *fname;
gal_data_t *out;
out=gal_array_read(filename, extension, lines, minmapsize, quietmmap,
hdu_option_name);
if(out->next)
{
if(extension)
{
if( asprintf(&fname, "%s (hdu %s)", filename, extension)<0 )
error(EXIT_FAILURE, 0, "%s: asprintf allocation error", __func__);
}
else
fname=filename;
error(EXIT_FAILURE, 0, "%s: contains %zu channels (it isn't "
"monochrome).\n\n"
"You can use Gnuastro's ConvertType program to separate the "
"(color) channels into separate extensions of a FITS file, with "
"a command like this:\n\n"
" $ astconvertt %s -h%s --output=sep-ch.fits",
fname, gal_list_data_number(out), filename, extension);
}
return out;
}
/* Read a single-channel dataset into a specific type. */
gal_data_t *
gal_array_read_one_ch_to_type(char *filename, char *extension,
gal_list_str_t *lines, uint8_t type,
size_t minmapsize, int quietmmap,
char *hdu_option_name)
{
gal_data_t *out=gal_array_read_one_ch(filename, extension, lines,
minmapsize, quietmmap,
hdu_option_name);
return gal_data_copy_to_new_type_free(out, type);
}
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