/* read with openslide
 *
 * 17/12/11
 * 	- just a stub
 * 11/4/12
 * 	- support :level,associated in filenames
 * 20/9/12
 *	- add Leica filename suffix
 */

/*

	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_openslide2vips(const char *name, IMAGE *out)
{
	char filename[FILENAME_MAX];
	char mode[FILENAME_MAX];
	char *p, *q;
	char *associated;
	int level;
	char *endptr;
	VipsImage *t;

	im_filename_split(name, filename, mode);
	level = 0;
	associated = NULL;
	p = &mode[0];
	if ((q = im_getnextoption(&p))) {
		level = strtoul(q, &endptr, 10);
		if (*endptr) {
			vips_error("openslide2vips", "%s",
				_("level must be a number"));
			return -1;
		}
	}
	if ((q = im_getnextoption(&p)))
		associated = q;

	if (vips_openslideload(filename, &t,
			"level", level,
			"associated", associated,
			NULL))
		return -1;
	if (vips_image_write(t, out)) {
		g_object_unref(t);
		return -1;
	}
	g_object_unref(t);

	return 0;
}

static const char *openslide_suffs[] = {
	".svs",					 /* Aperio */
	".vms", ".vmu", ".ndpi", /* Hamamatsu */
	".scn",					 /* Leica */
	".mrxs",				 /* MIRAX */
	".svslide",				 /* Sakura */
	".tif",					 /* Trestle */
	".bif",					 /* Ventana */
	NULL
};

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

	im_filename_split(name, filename, mode);

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

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

	im_filename_split(name, filename, mode);

	return vips_foreign_is_a("openslideload", filename);
}

/* openslide format adds no new members.
 */
typedef VipsFormat VipsFormatOpenslide;
typedef VipsFormatClass VipsFormatOpenslideClass;

static void
vips_format_openslide_class_init(VipsFormatOpenslideClass *class)
{
	VipsObjectClass *object_class = (VipsObjectClass *) class;
	VipsFormatClass *format_class = (VipsFormatClass *) class;

	object_class->nickname = "im_openslide";
	object_class->description = _("Openslide");

	format_class->priority = 100;
	format_class->is_a = isopenslide;
	format_class->load = im_openslide2vips;
	format_class->get_flags = openslide_flags;
	format_class->suffs = openslide_suffs;
}

static void
vips_format_openslide_init(VipsFormatOpenslide *object)
{
}

G_DEFINE_TYPE(VipsFormatOpenslide, vips_format_openslide, VIPS_TYPE_FORMAT);
