source: trunk/demos/spectrum/3rdparty/fftreal/OscSinCos.h@ 769

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

        OscSinCos.h
        Copyright (c) 2005 Laurent de Soras

--- Legal stuff ---

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library 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
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

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



#if ! defined (OscSinCos_HEADER_INCLUDED)
#define OscSinCos_HEADER_INCLUDED

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



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

#include        "def.h"



template <class T>
class OscSinCos
{

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

public:

        typedef T       DataType;

                                                OscSinCos ();

        FORCEINLINE void
                                                set_step (double angle_rad);

        FORCEINLINE DataType
                                                get_cos () const;
        FORCEINLINE DataType
                                                get_sin () const;
        FORCEINLINE void
                                                step ();
        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



#include        "OscSinCos.hpp"



#endif  // OscSinCos_HEADER_INCLUDED



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