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x86: sbrdsp: implement SSE2 qmf_pre_shuffle

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From 253 to 51 cycles on Arrandale and Win64.
44 cycles on SandyBridge.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Christophe Gisquet
2013-04-09 22:54:25 +00:00
committed by Michael Niedermayer
parent d2e051e30c
commit 2383068cbf
2 changed files with 32 additions and 0 deletions
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2
libavcodec/x86/sbrdsp_init.c
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@@ -36,6 +36,7 @@ void ff_sbr_neg_odd_64_sse(float *z);
void ff_sbr_qmf_post_shuffle_sse(float W[32][2], const float *z);
void ff_sbr_qmf_deint_bfly_sse(float *v, const float *src0, const float *src1);
void ff_sbr_qmf_deint_bfly_sse2(float *v, const float *src0, const float *src1);
void ff_sbr_qmf_pre_shuffle_sse2(float *z);
av_cold void ff_sbrdsp_init_x86(SBRDSPContext *s)
{
@@ -53,5 +54,6 @@ av_cold void ff_sbrdsp_init_x86(SBRDSPContext *s)
if (EXTERNAL_SSE2(mm_flags)) {
s->qmf_deint_bfly = ff_sbr_qmf_deint_bfly_sse2;
s->qmf_pre_shuffle = ff_sbr_qmf_pre_shuffle_sse2;
}
}