CpuFeatures.cpp

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/*
    RawSpeed - RAW file decoder.
 
    Copyright (C) 2017 Roman Lebedev
 
    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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
 
#include "common/CpuFeatures.h"
 
#if defined(__i386__) || defined(__x86_64__)
#include <cpuid.h>
#endif
 
namespace rawspeed {
 
#if defined(__i386__) || defined(__x86_64__)
 
bool Cpuid::SSE2() {
  unsigned int eax;
  unsigned int ebx;
  unsigned int ecx;
  unsigned int edx;
 
  if (!__get_cpuid(1, &eax, &ebx, &ecx, &edx))
    return false;
 
  return edx & bit_SSE2;
}
 
#else
 
bool Cpuid::SSE2() { return false; }
 
#endif
 
} // namespace rawspeed