diff options
| author | Christophe Gisquet <christophe.gisquet@gmail.com> | 2014-02-14 15:03:09 +0000 |
|---|---|---|
| committer | Janne Grunau <janne-libav@jannau.net> | 2014-02-28 13:00:48 +0100 |
| commit | 08e3ea60ff4059341b74be04a428a38f7c3630b0 (patch) | |
| tree | e9e639f3b99004cdf785a88b17e06b1c28fb1b66 /libavcodec/synth_filter.c | |
| parent | 57b1eb9f75b04571063ddec316e290c216c114ac (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: Janne Grunau <janne-libav@jannau.net>
Diffstat (limited to 'libavcodec/synth_filter.c')
| -rw-r--r-- | libavcodec/synth_filter.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libavcodec/synth_filter.c b/libavcodec/synth_filter.c index 8e6f1202fe..d0ace4040e 100644 --- a/libavcodec/synth_filter.c +++ b/libavcodec/synth_filter.c @@ -61,4 +61,5 @@ av_cold void ff_synth_filter_init(SynthFilterContext *c) c->synth_filter_float = synth_filter_float; if (ARCH_ARM) ff_synth_filter_init_arm(c); + if (ARCH_X86) ff_synth_filter_init_x86(c); } |