/* This file is part of Raul.
 * Copyright (C) 2007-2009 David Robillard <http://drobilla.net>
 *
 * Raul 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.
 *
 * Raul 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 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 St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef RAUL_QUANTIZER_HPP
#define RAUL_QUANTIZER_HPP

#include <cmath>
#include "raul/TimeStamp.hpp"

namespace Raul {

/** Quantizer.
 * \ingroup raul 
 */
class Quantizer {
public:
	inline static TimeStamp quantize(TimeStamp q, TimeStamp t) {
		assert(q.unit() == t.unit());
		// FIXME: Precision problem?  Should probably stay in discrete domain
		const double qd = q.to_double();
		const double td = t.to_double();
		return TimeStamp(t.unit(), (qd > 0) ? lrint(td / qd) * qd : td);
	}

	inline static double quantize(double q, double t) {
		return (q > 0)
			? lrint(t / q) * q
			: t;
	}
};


} // namespace Raul

#endif // RAUL_QUANTIZER_HPP
