RAUL  0.5.1
Quantizer.hpp
1 /* This file is part of Raul.
2  * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
3  *
4  * Raul is free software; you can redistribute it and/or modify it under the
5  * terms of the GNU General Public License as published by the Free Software
6  * Foundation; either version 2 of the License, or (at your option) any later
7  * version.
8  *
9  * Raul is distributed in the hope that it will be useful, but WITHOUT ANY
10  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11  * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
12  *
13  * You should have received a copy of the GNU General Public License along
14  * with this program; if not, write to the Free Software Foundation, Inc.,
15  * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
16  */
17 
18 #ifndef RAUL_QUANTIZER_HPP
19 #define RAUL_QUANTIZER_HPP
20 
21 #include <cmath>
22 #include <raul/TimeStamp.hpp>
23 
24 namespace Raul {
25 
26 
27 class Quantizer {
28 public:
29  inline static TimeStamp quantize(TimeStamp q, TimeStamp t) {
30  assert(q.unit() == t.unit());
31  // FIXME: Precision problem? Should probably stay in discrete domain
32  const double qd = q.to_double();
33  const double td = t.to_double();
34  return TimeStamp(t.unit(), (qd > 0) ? lrint(td / qd) * qd : td);
35  }
36 };
37 
38 
39 } // namespace Raul
40 
41 #endif // RAUL_QUANTIZER_HPP
Definition: Array.hpp:26