/*

 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard

 *

 * This file is part of Libav.

 *

 * Libav 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.

 *

 * Libav 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 Libav; 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

#include "version.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_MMXEXT       0x0002 ///< SSE integer functions or AMD MMX ext

#if LIBAVUTIL_VERSION_MAJOR < 52

#define AV_CPU_FLAG_MMX2         0x0002 ///< SSE integer functions or AMD MMX ext

#endif

#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_XOP          0x0400 ///< Bulldozer XOP functions

#define AV_CPU_FLAG_FMA4         0x0800 ///< Bulldozer FMA4 functions

#define AV_CPU_FLAG_CMOV         0x1000 ///< i686 cmov

#define AV_CPU_FLAG_ALTIVEC      0x0001 ///< standard

#define AV_CPU_FLAG_ARMV5TE      (1 << 0)

#define AV_CPU_FLAG_ARMV6        (1 << 1)

#define AV_CPU_FLAG_ARMV6T2      (1 << 2)

#define AV_CPU_FLAG_VFP          (1 << 3)

#define AV_CPU_FLAG_VFPV3        (1 << 4)

#define AV_CPU_FLAG_NEON         (1 << 5)

/**

 * Return the flags which specify extensions supported by the CPU.

 */

int av_get_cpu_flags(void);

/**

 * Set a mask on flags returned by av_get_cpu_flags().

 * This function is mainly useful for testing.

 *

 * @warning this function is not thread safe.

 */

void av_set_cpu_flags_mask(int mask);

/**

 * Parse CPU flags from a string.

 *

 * @return a combination of AV_CPU_* flags, negative on error.

 */

int av_parse_cpu_flags(const char *s);

/* 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 */