source: trunk/demos/spectrum/3rdparty/fftreal/FFTRealUseTrigo.h@ 865

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

        FFTRealUseTrigo.h
        Copyright (c) 2005 Laurent de Soras

Template parameters:
        - ALGO: algorithm choice. 0 = table, other = oscillator

--- 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 (FFTRealUseTrigo_HEADER_INCLUDED)
#define FFTRealUseTrigo_HEADER_INCLUDED

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



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

#include        "def.h"
#include        "FFTRealFixLenParam.h"
#include        "OscSinCos.h"



template <int ALGO>
class FFTRealUseTrigo
{

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

public:

   typedef      FFTRealFixLenParam::DataType    DataType;
        typedef OscSinCos <DataType>    OscType;

        FORCEINLINE static void
                                                prepare (OscType &osc);
        FORCEINLINE     static void
                                                iterate (OscType &osc, DataType &c, DataType &s, const DataType cos_ptr [], long index_c, long index_s);



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

protected: