libs/evoral/evoral/Curve.hpp

   1 /* This file is part of Evoral.
   2  * Copyright (C) 2008 David Robillard <http://drobilla.net>
   3  * Copyright (C) 2000-2008 Paul Davis
   4  *
   5  * Evoral is free software; you can redistribute it and/or modify it under the
   6  * terms of the GNU General Public License as published by the Free Software
   7  * Foundation; either version 2 of the License, or (at your option) any later
   8  * version.
   9  *
  10  * Evoral is distributed in the hope that it will be useful, but WITHOUT ANY
  11  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  12  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  17  */
  18
  19 #ifndef EVORAL_CURVE_HPP
  20 #define EVORAL_CURVE_HPP
  21
  22 #include <inttypes.h>
  23 #include <boost/utility.hpp>
  24
  25 namespace Evoral {
  26
  27 class ControlList;
  28
  29 class Curve : public boost::noncopyable
  30 {
  31 public:
  32         Curve (const ControlList& cl);
  33
  34         bool rt_safe_get_vector (double x0, double x1, float *arg, int32_t veclen);
  35         void get_vector (double x0, double x1, float *arg, int32_t veclen);
  36
  37         void solve ();
  38
  39         void mark_dirty() const { _dirty = true; }
  40
  41 private:
  42         double unlocked_eval (double where);
  43         double multipoint_eval (double x);
  44
  45         void _get_vector (double x0, double x1, float *arg, int32_t veclen);
  46
  47         mutable bool       _dirty;
  48         const ControlList& _list;
  49 };
  50
  51 } // namespace Evoral
  52
  53 extern "C" {
  54         void curve_get_vector_from_c (void *arg, double, double, float*, int32_t);
  55 }
  56
  57 #endif // EVORAL_CURVE_HPP
  58