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| author | Måns Rullgård <mans@mansr.com> | 2009-01-27 16:06:38 +0000 |
|---|---|---|
| committer | Måns Rullgård <mans@mansr.com> | 2009-01-27 16:06:38 +0000 |
| commit | 4f928a4d2d10110fe386c3512d22797a3f85502c (patch) | |
| tree | 00dd28de6c716860f5732523a30ad1cbc3c43ed0 /libavcodec | |
| parent | 1214bd86dcc4cea16d908506622b506648900277 (diff) | |
| download | ffmpeg-4f928a4d2d10110fe386c3512d22797a3f85502c.tar.gz | |
ARM: optimised mid_pred()
Originally committed as revision 16819 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/arm/mathops.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/libavcodec/arm/mathops.h b/libavcodec/arm/mathops.h index 00279181db..de2d5300b7 100644 --- a/libavcodec/arm/mathops.h +++ b/libavcodec/arm/mathops.h @@ -90,4 +90,22 @@ static inline av_const MUL16(int ra, int rb) #endif +#define mid_pred mid_pred +static inline av_const int mid_pred(int a, int b, int c) +{ + int m; + __asm__ volatile ( + "mov %0, %2 \n\t" + "cmp %1, %2 \n\t" + "movgt %0, %1 \n\t" + "movgt %1, %2 \n\t" + "cmp %1, %3 \n\t" + "movle %1, %3 \n\t" + "cmp %0, %1 \n\t" + "movgt %0, %1 \n\t" + : "=&r"(m), "+r"(a) + : "r"(b), "r"(c)); + return m; +} + #endif /* AVCODEC_ARM_MATHOPS_H */ |