mirror of https://git.ffmpeg.org/ffmpeg.git
78 lines
3.0 KiB
C
78 lines
3.0 KiB
C
/*
|
|
* 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
|
|
|
|
#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_XOP 0x0400 ///< Bulldozer XOP functions
|
|
#define AV_CPU_FLAG_FMA4 0x0800 ///< Bulldozer FMA4 functions
|
|
#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 */
|