From 3b345d389be2d67017f904caa21713f53a8e8c90 Mon Sep 17 00:00:00 2001 From: James Almer Date: Wed, 27 Sep 2017 23:10:09 -0300 Subject: avutil/cpu: split flag checks per arch in av_cpu_max_align() Signed-off-by: James Almer --- libavutil/x86/cpu.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'libavutil/x86') diff --git a/libavutil/x86/cpu.c b/libavutil/x86/cpu.c index 3800a11ad8..f33088c8c7 100644 --- a/libavutil/x86/cpu.c +++ b/libavutil/x86/cpu.c @@ -233,3 +233,30 @@ int ff_get_cpu_flags_x86(void) return rval; } + +size_t ff_get_cpu_max_align_x86(void) +{ + int flags = av_get_cpu_flags(); + + if (flags & (AV_CPU_FLAG_AVX2 | + AV_CPU_FLAG_AVX | + AV_CPU_FLAG_XOP | + AV_CPU_FLAG_FMA4 | + AV_CPU_FLAG_FMA3 | + AV_CPU_FLAG_AVXSLOW)) + return 32; + if (flags & (AV_CPU_FLAG_AESNI | + AV_CPU_FLAG_SSE42 | + AV_CPU_FLAG_SSE4 | + AV_CPU_FLAG_SSSE3 | + AV_CPU_FLAG_SSE3 | + AV_CPU_FLAG_SSE2 | + AV_CPU_FLAG_SSE | + AV_CPU_FLAG_ATOM | + AV_CPU_FLAG_SSSE3SLOW | + AV_CPU_FLAG_SSE3SLOW | + AV_CPU_FLAG_SSE2SLOW)) + return 16; + + return 8; +} -- cgit v1.2.3