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Open Source Computer Vision Library
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63 lines
2.6 KiB
63 lines
2.6 KiB
/* |
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* Copyright (c) 2000, 2001, 2002 Fabrice Bellard |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVUTIL_CPU_H |
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#define AVUTIL_CPU_H |
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#define AV_CPU_FLAG_FORCE 0x80000000 /* force usage of selected flags (OR) */ |
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/* lower 16 bits - CPU features */ |
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#define AV_CPU_FLAG_MMX 0x0001 ///< standard MMX |
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#define AV_CPU_FLAG_MMX2 0x0002 ///< SSE integer functions or AMD MMX ext |
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#define AV_CPU_FLAG_3DNOW 0x0004 ///< AMD 3DNOW |
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#define AV_CPU_FLAG_SSE 0x0008 ///< SSE functions |
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#define AV_CPU_FLAG_SSE2 0x0010 ///< PIV SSE2 functions |
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#define AV_CPU_FLAG_SSE2SLOW 0x40000000 ///< SSE2 supported, but usually not faster |
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#define AV_CPU_FLAG_3DNOWEXT 0x0020 ///< AMD 3DNowExt |
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#define AV_CPU_FLAG_SSE3 0x0040 ///< Prescott SSE3 functions |
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#define AV_CPU_FLAG_SSE3SLOW 0x20000000 ///< SSE3 supported, but usually not faster |
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#define AV_CPU_FLAG_SSSE3 0x0080 ///< Conroe SSSE3 functions |
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#define AV_CPU_FLAG_ATOM 0x10000000 ///< Atom processor, some SSSE3 instructions are slower |
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#define AV_CPU_FLAG_SSE4 0x0100 ///< Penryn SSE4.1 functions |
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#define AV_CPU_FLAG_SSE42 0x0200 ///< Nehalem SSE4.2 functions |
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#define AV_CPU_FLAG_AVX 0x4000 ///< AVX functions: requires OS support even if YMM registers aren't used |
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#define AV_CPU_FLAG_XOP 0x0400 ///< Bulldozer XOP functions |
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#define AV_CPU_FLAG_FMA4 0x0800 ///< Bulldozer FMA4 functions |
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#define AV_CPU_FLAG_IWMMXT 0x0100 ///< XScale IWMMXT |
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#define AV_CPU_FLAG_ALTIVEC 0x0001 ///< standard |
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/** |
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* Return the flags which specify extensions supported by the CPU. |
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*/ |
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int av_get_cpu_flags(void); |
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/** |
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* Disables cpu detection and forces the specified flags. |
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*/ |
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void av_force_cpu_flags(int flags); |
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/* The following CPU-specific functions shall not be called directly. */ |
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int ff_get_cpu_flags_arm(void); |
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int ff_get_cpu_flags_ppc(void); |
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int ff_get_cpu_flags_x86(void); |
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#endif /* AVUTIL_CPU_H */
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