fpu.h

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/*
 * Copyright (C) 2007-2015 Paul Davis <paul@linuxaudiosystems.com>
 * Copyright (C) 2015 Robin Gareus <robin@gareus.org>
 *
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#pragma once
 
#include "pbd/libpbd_visibility.h"
 
namespace PBD {
 
class LIBPBD_API FPU {
  private:
        enum Flags {
                HasFlushToZero = 0x1,
                HasDenormalsAreZero = 0x2,
                HasSSE = 0x4,
                HasSSE2 = 0x8,
                HasAVX = 0x10,
                HasNEON = 0x20,
                HasFMA = 0x40,
                HasAVX512F = 0x80,
        };
 
  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; }
        bool has_avx512f () const { return _flags & HasAVX512F; }
        bool has_fma() const { return _flags & HasFMA; }
        bool has_neon () const { return _flags & HasNEON; }
 
  private:
        Flags _flags;
 
        static FPU* _instance;
 
        FPU ();
};
 
}