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| author | ZhouXiaoyong <zhouxiaoyong@loongson.cn> | 2015-04-16 14:42:44 +0800 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2015-04-27 02:25:12 +0200 |
| commit | 0ace686ae8543750165d423adfe9249f3ce4c235 (patch) | |
| tree | 356a866bea9a5b07832dbdfa071d19e3fedc3fd5 /libavcodec/mathops.h | |
| parent | 4b8a8194964415022667099b502e60989f4d3134 (diff) | |
| download | ffmpeg-streaming-0ace686ae8543750165d423adfe9249f3ce4c235.zip ffmpeg-streaming-0ace686ae8543750165d423adfe9249f3ce4c235.tar.gz | |
avcodec: optimize mathops for Loongson-3 v1
HAVE_LOONGSON is replaced by HAVE_LOONGSON3. Even Loongson-2E and 2F support
Loongson SIMD instructs but have low performance for decoding. We plan to focus
on optimizing Loongson-3A1000, 3B1500 and 3A1500, and modify the configure file
to support Loongson-2 series later by adding HAVE_LOONGSON2.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/mathops.h')
| -rw-r--r-- | libavcodec/mathops.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/mathops.h b/libavcodec/mathops.h index 87d110b..46283ca 100644 --- a/libavcodec/mathops.h +++ b/libavcodec/mathops.h @@ -211,6 +211,8 @@ if ((y) < (x)) {\ # define FASTDIV(a,b) ((uint32_t)((((uint64_t)a) * ff_inverse[b]) >> 32)) #endif /* FASTDIV */ +#ifndef ff_sqrt +#define ff_sqrt ff_sqrt static inline av_const unsigned int ff_sqrt(unsigned int a) { unsigned int b; @@ -230,6 +232,7 @@ static inline av_const unsigned int ff_sqrt(unsigned int a) return b - (a < b * b); } +#endif static inline int8_t ff_u8_to_s8(uint8_t a) { |
