/* load nifti images
 *
 * 10/9/18
 *	- from im_openslide2vips
 */

/*

	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 <glib/gi18n-lib.h>

#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>

#include <vips/vips.h>
#include <vips/vips7compat.h>
#include <vips/thread.h>
#include <vips/internal.h>

static int
im_nifti2vips(const char *name, IMAGE *out)
{
	VipsImage *t;

	if (vips_niftiload(name, &t, NULL))
		return -1;
	if (vips_image_write(t, out)) {
		g_object_unref(t);
		return -1;
	}
	g_object_unref(t);

	return 0;
}

static const char *nifti_suffs[] = {
	".nii", ".nii.gz",
	".hdr", ".hdr.gz",
	".img", ".img.gz",
	".nia", ".nia.gz",
	NULL
};

static VipsFormatFlags
nifti_flags(const char *name)
{
	char filename[FILENAME_MAX];
	char mode[FILENAME_MAX];

	im_filename_split(name, filename, mode);

	return (VipsFormatFlags) vips_foreign_flags("niftiload", filename);
}

static int
isnifti(const char *name)
{
	char filename[FILENAME_MAX];
	char mode[FILENAME_MAX];

	im_filename_split(name, filename, mode);

	return vips_foreign_is_a("niftiload", filename);
}

/* nifti format adds no new members.
 */
typedef VipsFormat VipsFormatNifti;
typedef VipsFormatClass VipsFormatNiftiClass;

static void
vips_format_nifti_class_init(VipsFormatNiftiClass *class)
{
	VipsObjectClass *object_class = (VipsObjectClass *) class;
	VipsFormatClass *format_class = (VipsFormatClass *) class;

	object_class->nickname = "im_nifti";
	object_class->description = _("NIfTI");

	format_class->priority = 100;
	format_class->is_a = isnifti;
	format_class->load = im_nifti2vips;
	format_class->get_flags = nifti_flags;
	format_class->suffs = nifti_suffs;
}

static void
vips_format_nifti_init(VipsFormatNifti *object)
{
}

G_DEFINE_TYPE(VipsFormatNifti, vips_format_nifti, VIPS_TYPE_FORMAT);
