/*
  * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg 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.
  *
  * FFmpeg 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 FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #ifndef AVUTIL_CPU_H
 #define AVUTIL_CPU_H
 
 #define AV_CPU_FLAG_FORCE    0x80000000 /* force usage of selected flags (OR) */
 
     /* lower 16 bits - CPU features */
 #define AV_CPU_FLAG_MMX          0x0001 ///< standard MMX
 #define AV_CPU_FLAG_MMX2         0x0002 ///< SSE integer functions or AMD MMX ext

 #define AV_CPU_FLAG_3DNOW        0x0004 ///< AMD 3DNOW

 #define AV_CPU_FLAG_SSE          0x0008 ///< SSE functions
 #define AV_CPU_FLAG_SSE2         0x0010 ///< PIV SSE2 functions
 #define AV_CPU_FLAG_SSE2SLOW 0x40000000 ///< SSE2 supported, but usually not faster
 #define AV_CPU_FLAG_3DNOWEXT     0x0020 ///< AMD 3DNowExt
 #define AV_CPU_FLAG_SSE3         0x0040 ///< Prescott SSE3 functions

 #define AV_CPU_FLAG_SSE3SLOW 0x20000000 ///< SSE3 supported, but usually not faster

 #define AV_CPU_FLAG_SSSE3        0x0080 ///< Conroe SSSE3 functions

 #define AV_CPU_FLAG_ATOM     0x10000000 ///< Atom processor, some SSSE3 instructions are slower

 #define AV_CPU_FLAG_SSE4         0x0100 ///< Penryn SSE4.1 functions
 #define AV_CPU_FLAG_SSE42        0x0200 ///< Nehalem SSE4.2 functions

 #define AV_CPU_FLAG_AVX          0x4000 ///< AVX functions: requires OS support even if YMM registers aren't used

 #define AV_CPU_FLAG_IWMMXT       0x0100 ///< XScale IWMMXT
 #define AV_CPU_FLAG_ALTIVEC      0x0001 ///< standard
 

 /**
  * Return the flags which specify extensions supported by the CPU.
  */
 int av_get_cpu_flags(void);
 

 
 /**
  * Disables cpu detection and forces the specified flags.
  */
 void av_force_cpu_flags(int flags);
 
 

 /* The following CPU-specific functions shall not be called directly. */
 int ff_get_cpu_flags_arm(void);
 int ff_get_cpu_flags_ppc(void);
 int ff_get_cpu_flags_x86(void);
 

 #endif /* AVUTIL_CPU_H */