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/* load fits from a file
*
* 5/12/11
* - from openslideload.c
*/
/*
This file is part of VIPS.
VIPS is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
/*
#define DEBUG
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
#include <vips/intl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <vips/vips.h>
#include <vips/buf.h>
#include <vips/internal.h>
#ifdef HAVE_CFITSIO
#include "fits.h"
typedef struct _VipsForeignLoadFits {
VipsForeignLoad parent_object;
/* Filename for load.
*/
char *filename;
} VipsForeignLoadFits;
typedef VipsForeignLoadClass VipsForeignLoadFitsClass;
G_DEFINE_TYPE( VipsForeignLoadFits, vips_foreign_load_fits,
VIPS_TYPE_FOREIGN_LOAD );
static int
vips_foreign_load_fits_header( VipsForeignLoad *load )
{
VipsForeignLoadFits *fits = (VipsForeignLoadFits *) load;
if( vips__fits_read_header( fits->filename, load->out ) )
return( -1 );
VIPS_SETSTR( load->out->filename, fits->filename );
return( 0 );
}
static int
vips_foreign_load_fits_load( VipsForeignLoad *load )
{
VipsForeignLoadFits *fits = (VipsForeignLoadFits *) load;
VipsImage **t = (VipsImage **)
vips_object_local_array( VIPS_OBJECT( fits ), 2 );
t[0] = vips_image_new();
if( vips__fits_read( fits->filename, t[0] ) ||
vips_flip( t[0], &t[1], VIPS_DIRECTION_VERTICAL, NULL ) ||
vips_image_write( t[1], load->real ) )
return( -1 );
return( 0 );
}
static void
vips_foreign_load_fits_class_init( VipsForeignLoadFitsClass *class )
{
GObjectClass *gobject_class = G_OBJECT_CLASS( class );
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsForeignClass *foreign_class = (VipsForeignClass *) class;
VipsForeignLoadClass *load_class = (VipsForeignLoadClass *) class;
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;
object_class->nickname = "fitsload";
object_class->description = _( "load a FITS image" );
/* is_a() is not that quick ... lower the priority.
*/
foreign_class->priority = -50;
foreign_class->suffs = vips__fits_suffs;
load_class->is_a = vips__fits_isfits;
load_class->header = vips_foreign_load_fits_header;
load_class->load = vips_foreign_load_fits_load;
VIPS_ARG_STRING( class, "filename", 1,
_( "Filename" ),
_( "Filename to load from" ),
VIPS_ARGUMENT_REQUIRED_INPUT,
G_STRUCT_OFFSET( VipsForeignLoadFits, filename ),
NULL );
}
static void
vips_foreign_load_fits_init( VipsForeignLoadFits *fits )
{
}
#endif /*HAVE_CFITSIO*/
/**
* vips_fitsload:
* @filename: file to load
* @out: decompressed image
* @...: %NULL-terminated list of optional named arguments
*
* Read a FITS image file into a VIPS image.
*
* This operation can read images with up to three dimensions. Any higher
* dimensions must be empty.
*
* It can read 8, 16 and 32-bit integer images, signed and unsigned, float and
* double.
*
* FITS metadata is attached with the "fits-" prefix.
*
* See also: vips_image_new_from_file().
*
* Returns: 0 on success, -1 on error.
*/
int
vips_fitsload( const char *filename, VipsImage **out, ... )
{
va_list ap;
int result;
va_start( ap, out );
result = vips_call_split( "fitsload", ap, filename, out );
va_end( ap );
return( result );
}
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