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1f6d86991f
This allows detecting CPU features with builds that have neither gcc inline assembly nor the right compiler intrinsics enabled.
62 lines
2.8 KiB
C
62 lines
2.8 KiB
C
/*
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* This file is part of Libav.
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*
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* Libav 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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* Libav 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 Libav; 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_X86_CPU_H
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#define AVUTIL_X86_CPU_H
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#include "config.h"
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#include "libavutil/cpu.h"
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#define CPUEXT(flags, suffix, cpuext) \
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(HAVE_ ## cpuext ## suffix && ((flags) & AV_CPU_FLAG_ ## cpuext))
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#define AV_CPU_FLAG_AMD3DNOW AV_CPU_FLAG_3DNOW
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#define AV_CPU_FLAG_AMD3DNOWEXT AV_CPU_FLAG_3DNOWEXT
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#define EXTERNAL_AMD3DNOW(flags) CPUEXT(flags, _EXTERNAL, AMD3DNOW)
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#define EXTERNAL_AMD3DNOWEXT(flags) CPUEXT(flags, _EXTERNAL, AMD3DNOWEXT)
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#define EXTERNAL_MMX(flags) CPUEXT(flags, _EXTERNAL, MMX)
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#define EXTERNAL_MMXEXT(flags) CPUEXT(flags, _EXTERNAL, MMXEXT)
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#define EXTERNAL_SSE(flags) CPUEXT(flags, _EXTERNAL, SSE)
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#define EXTERNAL_SSE2(flags) CPUEXT(flags, _EXTERNAL, SSE2)
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#define EXTERNAL_SSE3(flags) CPUEXT(flags, _EXTERNAL, SSE3)
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#define EXTERNAL_SSSE3(flags) CPUEXT(flags, _EXTERNAL, SSSE3)
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#define EXTERNAL_SSE4(flags) CPUEXT(flags, _EXTERNAL, SSE4)
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#define EXTERNAL_SSE42(flags) CPUEXT(flags, _EXTERNAL, SSE42)
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#define EXTERNAL_AVX(flags) CPUEXT(flags, _EXTERNAL, AVX)
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#define EXTERNAL_FMA4(flags) CPUEXT(flags, _EXTERNAL, FMA4)
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#define INLINE_AMD3DNOW(flags) CPUEXT(flags, _INLINE, AMD3DNOW)
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#define INLINE_AMD3DNOWEXT(flags) CPUEXT(flags, _INLINE, AMD3DNOWEXT)
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#define INLINE_MMX(flags) CPUEXT(flags, _INLINE, MMX)
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#define INLINE_MMXEXT(flags) CPUEXT(flags, _INLINE, MMXEXT)
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#define INLINE_SSE(flags) CPUEXT(flags, _INLINE, SSE)
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#define INLINE_SSE2(flags) CPUEXT(flags, _INLINE, SSE2)
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#define INLINE_SSE3(flags) CPUEXT(flags, _INLINE, SSE3)
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#define INLINE_SSSE3(flags) CPUEXT(flags, _INLINE, SSSE3)
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#define INLINE_SSE4(flags) CPUEXT(flags, _INLINE, SSE4)
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#define INLINE_SSE42(flags) CPUEXT(flags, _INLINE, SSE42)
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#define INLINE_AVX(flags) CPUEXT(flags, _INLINE, AVX)
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#define INLINE_FMA4(flags) CPUEXT(flags, _INLINE, FMA4)
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void ff_cpu_cpuid(int index, int *eax, int *ebx, int *ecx, int *edx);
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void ff_cpu_xgetbv(int op, int *eax, int *edx);
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int ff_cpu_cpuid_test(void);
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#endif /* AVUTIL_X86_CPU_H */
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