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

        FFTRealUseTrigo.hpp

        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 (FFTRealUseTrigo_CURRENT_CODEHEADER)

	#error Recursive inclusion of FFTRealUseTrigo code header.

#endif

#define	FFTRealUseTrigo_CURRENT_CODEHEADER

#if ! defined (FFTRealUseTrigo_CODEHEADER_INCLUDED)

#define	FFTRealUseTrigo_CODEHEADER_INCLUDED

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

#include	"OscSinCos.h"

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

template <int ALGO>

void	FFTRealUseTrigo <ALGO>::prepare (OscType &osc)

{

	osc.clear_buffers ();

}

template <>

void	FFTRealUseTrigo <0>::prepare (OscType &osc)

{

	// Nothing

}

template <int ALGO>

void	FFTRealUseTrigo <ALGO>::iterate (OscType &osc, DataType &c, DataType &s, const DataType cos_ptr [], long index_c, long index_s)

{

	osc.step ();

	c = osc.get_cos ();

	s = osc.get_sin ();

}

template <>

void	FFTRealUseTrigo <0>::iterate (OscType &osc, DataType &c, DataType &s, const DataType cos_ptr [], long index_c, long index_s)

{

	c = cos_ptr [index_c];

	s = cos_ptr [index_s];

}

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

/*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

#endif	// FFTRealUseTrigo_CODEHEADER_INCLUDED

#undef FFTRealUseTrigo_CURRENT_CODEHEADER

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