/*
    Copyright (C) 2012 Paul Davis

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#ifndef __pbd_fpu_h__
#define __pbd_fpu_h__

#include "pbd/libpbd_visibility.h"

namespace PBD {

class LIBPBD_API FPU {
  private:
	enum Flags {
		HasFlushToZero = 0x1,
		HasDenormalsAreZero = 0x2,
		HasSSE = 0x4,
		HasSSE2 = 0x8,
		HasAVX = 0x10
	};

  public:
	~FPU ();

	static FPU* instance();
	static void destroy();

	bool has_flush_to_zero () const { return _flags & HasFlushToZero; }
	bool has_denormals_are_zero () const { return _flags & HasDenormalsAreZero; }
	bool has_sse () const { return _flags & HasSSE; }
	bool has_sse2 () const { return _flags & HasSSE2; }
	bool has_avx () const { return _flags & HasAVX; }

  private:
	Flags _flags;

	static FPU* _instance;

	FPU ();
};

}

#endif /* __pbd_fpu_h__ */