From: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
To: ffmpeg-devel@ffmpeg.org
Cc: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Subject: [FFmpeg-devel] [PATCH 1/2] avutil/x86/intreadwrite: Add ability to detect whether MMX code is used
Date: Thu, 8 Sep 2022 15:19:38 +0200
Message-ID: <AS8P250MB07444CED33F8E1BBAFF2E4F58F409@AS8P250MB0744.EURP250.PROD.OUTLOOK.COM> (raw)
It can be used to call emms_c() only when needed.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
libavutil/x86/intreadwrite.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavutil/x86/intreadwrite.h b/libavutil/x86/intreadwrite.h
index 4061d19231..40f375b013 100644
--- a/libavutil/x86/intreadwrite.h
+++ b/libavutil/x86/intreadwrite.h
@@ -29,6 +29,8 @@
#if !HAVE_FAST_64BIT && defined(__MMX__)
+#define FF_COPY_SWAP_ZERO_USES_MMX
+
#define AV_COPY64 AV_COPY64
static av_always_inline void AV_COPY64(void *d, const void *s)
{
--
2.34.1
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next reply other threads:[~2022-09-08 13:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-08 13:19 Andreas Rheinhardt [this message]
2022-09-08 13:20 ` [FFmpeg-devel] [PATCH 2/2] avcodec/dca_core: Only call emms_c() if needed Andreas Rheinhardt
2022-09-09 13:26 ` [FFmpeg-devel] [PATCH 1/2] avutil/x86/intreadwrite: Add ability to detect whether MMX code is used Andreas Rheinhardt
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