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/*
 * Copyright (C) 2011-2015 Paul Davis <paul@linuxaudiosystems.com>
 * Copyright (C) 2014 Robin Gareus <robin@gareus.org>
 *
 * 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 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 General Public License for more details.
 *
 * You should have received a copy of the GNU 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.
 */

#ifndef __ardour_panner_manager_h__
#define __ardour_panner_manager_h__

#include <map>
#include <string>
#include <glibmm/module.h>

#include "ardour/panner.h"
#include "ardour/session_handle.h"

namespace ARDOUR {

typedef std::map<std::string,std::string> PannerUriMap;

struct LIBARDOUR_API PannerInfo {

	PanPluginDescriptor descriptor;
	Glib::Module* module;

	PannerInfo (PanPluginDescriptor& d, Glib::Module* m)
	: descriptor (d)
	, module (m)
	{}

	~PannerInfo () {
		delete module;
	}
};

class LIBARDOUR_API PannerManager : public ARDOUR::SessionHandlePtr
{
public:
	~PannerManager ();
	static PannerManager& instance ();

	void discover_panners ();
	std::list<PannerInfo*> panner_info;

	PannerInfo* select_panner (ChanCount in, ChanCount out, std::string const uri = "");
	PannerInfo* get_by_uri (std::string uri) const;
	PannerUriMap get_available_panners(uint32_t const a_in, uint32_t const a_out) const;

private:
	PannerManager();
	static PannerManager* _instance;

	PannerInfo* get_descriptor (std::string path);
	int panner_discover (std::string path);
};

} // namespace

#endif /* __ardour_panner_manager_h__ */