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| author | Christophe Gisquet <christophe.gisquet@gmail.com> | 2014-02-14 16:00:48 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-02-28 20:34:40 +0100 |
| commit | 2cdbcc004837ce092a14f326f24d97a29512a2c3 (patch) | |
| tree | 7fc4341ce3da5c0aae72033134c5daf7745408fd /libavcodec/synth_filter.h | |
| parent | 5333e0dd66c5695fc708bc9d7af4bf8750674b8f (diff) | |
x86: synth filter float: implement SSE2 version
Timings for Arrandale:
C SSE
win32: 2108 334
win64: 1152 322
Factorizing the inner loop with a call/jmp is a >15 cycles cost, even with
the jmp destination being aligned.
Unrolling for ARCH_X86_64 is a 20 cycles gain.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/synth_filter.h')
| -rw-r--r-- | libavcodec/synth_filter.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libavcodec/synth_filter.h b/libavcodec/synth_filter.h index 33edcc437f..b63fd779b5 100644 --- a/libavcodec/synth_filter.h +++ b/libavcodec/synth_filter.h @@ -33,5 +33,6 @@ typedef struct SynthFilterContext { void ff_synth_filter_init(SynthFilterContext *c); void ff_synth_filter_init_arm(SynthFilterContext *c); +void ff_synth_filter_init_x86(SynthFilterContext *c); #endif /* AVCODEC_SYNTH_FILTER_H */ |