/*****************************************************************************

        OscSinCos.h
        By Laurent de Soras

--- Legal stuff ---

This program is free software. It comes without any warranty, to
the extent permitted by applicable law. You can redistribute it
and/or modify it under the terms of the Do What The Fuck You Want
To Public License, Version 2, as published by Sam Hocevar. See
http://sam.zoy.org/wtfpl/COPYING for more details.

*Tab=3***********************************************************************/

#if !defined(ffft_OscSinCos_HEADER_INCLUDED)
#  define ffft_OscSinCos_HEADER_INCLUDED

#  if defined(_MSC_VER)
#    pragma once
#    pragma warning(4 : 4250) // "Inherits via dominance."
#  endif

/*\\\ INCLUDE FILES \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

#  include "def.h"

namespace ffft
{

template<class T>
class OscSinCos
{

  /*\\\ PUBLIC \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

public:
  typedef T DataType;

  OscSinCos();

  ffft_FORCEINLINE void set_step(double angle_rad);

  ffft_FORCEINLINE DataType get_cos() const;
  ffft_FORCEINLINE DataType get_sin() const;
  ffft_FORCEINLINE void step();
  ffft_FORCEINLINE void clear_buffers();

  /*\\\ PROTECTED \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

protected:
  /*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

private:
  DataType _pos_cos;  // Current phase expressed with sin and cos. [-1 ; 1]
  DataType _pos_sin;  // -
  DataType _step_cos; // Phase increment per step, [-1 ; 1]
  DataType _step_sin; // -

  /*\\\ FORBIDDEN MEMBER FUNCTIONS \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

private:
  OscSinCos(const OscSinCos &other);
  OscSinCos &operator=(const OscSinCos &other);
  bool operator==(const OscSinCos &other);
  bool operator!=(const OscSinCos &other);

}; // class OscSinCos

} // namespace ffft

#  include "OscSinCos.hpp"

#endif // ffft_OscSinCos_HEADER_INCLUDED

/*\\\ EOF \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/