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| author | Christophe Gisquet <christophe.gisquet@gmail.com> | 2012-12-07 18:26:30 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-05-15 23:11:18 +0200 |
| commit | d1310c591eb24202ecc28af4adb28cce690109e5 (patch) | |
| tree | 6a36bacd687337295d79f667d0dcb7fb84c70b06 /libavcodec/x86/sbrdsp.asm | |
| parent | 7a4424e5ed3a60939126914ee5ddc32226a56cff (diff) | |
x86: sbrdsp: implement SSE qmf_deint_neg
From 133 (unrolled av_intfloat32 C) to 59 cycles on Arrandale/Win64.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/x86/sbrdsp.asm')
| -rw-r--r-- | libavcodec/x86/sbrdsp.asm | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/libavcodec/x86/sbrdsp.asm b/libavcodec/x86/sbrdsp.asm index af774e1a5c..d556f27112 100644 --- a/libavcodec/x86/sbrdsp.asm +++ b/libavcodec/x86/sbrdsp.asm @@ -423,3 +423,25 @@ apply_noise_main: add count, mmsize jl .loop RET + +INIT_XMM sse +cglobal sbr_qmf_deint_neg, 2,4,4,v,src,vrev,c +%define COUNT 32*4 +%define OFFSET 32*4 + mov cq, -COUNT + lea vrevq, [vq + OFFSET + COUNT] + add vq, OFFSET-mmsize + add srcq, 2*COUNT + mova m3, [ps_neg] +.loop: + mova m0, [srcq + 2*cq + 0*mmsize] + mova m1, [srcq + 2*cq + 1*mmsize] + shufps m2, m0, m1, q2020 + shufps m1, m0, q1313 + xorps m2, m3 + mova [vq], m1 + mova [vrevq + cq], m2 + sub vq, mmsize + add cq, mmsize + jl .loop + REP_RET |