1/*
2 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
3 *
4 * This file is part of Libav.
5 *
6 * Libav is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * Libav is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#ifndef AVUTIL_CPU_H
22#define AVUTIL_CPU_H
23
24#define AV_CPU_FLAG_FORCE    0x80000000 /* force usage of selected flags (OR) */
25
26    /* lower 16 bits - CPU features */
27#define AV_CPU_FLAG_MMX          0x0001 ///< standard MMX
28#define AV_CPU_FLAG_MMX2         0x0002 ///< SSE integer functions or AMD MMX ext
29#define AV_CPU_FLAG_3DNOW        0x0004 ///< AMD 3DNOW
30#define AV_CPU_FLAG_SSE          0x0008 ///< SSE functions
31#define AV_CPU_FLAG_SSE2         0x0010 ///< PIV SSE2 functions
32#define AV_CPU_FLAG_SSE2SLOW 0x40000000 ///< SSE2 supported, but usually not faster
33#define AV_CPU_FLAG_3DNOWEXT     0x0020 ///< AMD 3DNowExt
34#define AV_CPU_FLAG_SSE3         0x0040 ///< Prescott SSE3 functions
35#define AV_CPU_FLAG_SSE3SLOW 0x20000000 ///< SSE3 supported, but usually not faster
36#define AV_CPU_FLAG_SSSE3        0x0080 ///< Conroe SSSE3 functions
37#define AV_CPU_FLAG_ATOM     0x10000000 ///< Atom processor, some SSSE3 instructions are slower
38#define AV_CPU_FLAG_SSE4         0x0100 ///< Penryn SSE4.1 functions
39#define AV_CPU_FLAG_SSE42        0x0200 ///< Nehalem SSE4.2 functions
40#define AV_CPU_FLAG_AVX          0x4000 ///< AVX functions: requires OS support even if YMM registers aren't used
41#define AV_CPU_FLAG_XOP          0x0400 ///< Bulldozer XOP functions
42#define AV_CPU_FLAG_FMA4         0x0800 ///< Bulldozer FMA4 functions
43#define AV_CPU_FLAG_IWMMXT       0x0100 ///< XScale IWMMXT
44#define AV_CPU_FLAG_ALTIVEC      0x0001 ///< standard
45
46/**
47 * Return the flags which specify extensions supported by the CPU.
48 */
49int av_get_cpu_flags(void);
50
51/* The following CPU-specific functions shall not be called directly. */
52int ff_get_cpu_flags_arm(void);
53int ff_get_cpu_flags_ppc(void);
54int ff_get_cpu_flags_x86(void);
55
56#endif /* AVUTIL_CPU_H */
57