| /* |
| * 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 */ |