From 2383068cbfac11aedd2f133b2d00b0c1cb58b5f9 Mon Sep 17 00:00:00 2001 From: Christophe Gisquet Date: Tue, 9 Apr 2013 22:54:25 +0000 Subject: x86: sbrdsp: implement SSE2 qmf_pre_shuffle From 253 to 51 cycles on Arrandale and Win64. 44 cycles on SandyBridge. Signed-off-by: Michael Niedermayer --- libavcodec/x86/sbrdsp.asm | 30 ++++++++++++++++++++++++++++++ libavcodec/x86/sbrdsp_init.c | 2 ++ 2 files changed, 32 insertions(+) diff --git a/libavcodec/x86/sbrdsp.asm b/libavcodec/x86/sbrdsp.asm index 273e950563..ecc9c71104 100644 --- a/libavcodec/x86/sbrdsp.asm +++ b/libavcodec/x86/sbrdsp.asm @@ -284,3 +284,33 @@ SBR_QMF_DEINT_BFLY INIT_XMM sse2 SBR_QMF_DEINT_BFLY + +INIT_XMM sse2 +cglobal sbr_qmf_pre_shuffle, 1,4,7,z +%define OFFSET (32*4-2*mmsize) + mov r3q, OFFSET + lea r1q, [zq + (32+1)*4] + lea r2q, [zq + 64*4] + mova m6, [ps_neg] +.loop: + movu m0, [r1q] + movu m2, [r1q + mmsize] + movu m1, [zq + r3q + 4 + mmsize] + movu m3, [zq + r3q + 4] + + pxor m2, m6 + pxor m0, m6 + pshufd m2, m2, q0123 + pshufd m0, m0, q0123 + SBUTTERFLY dq, 2, 3, 5 + SBUTTERFLY dq, 0, 1, 4 + mova [r2q + 2*r3q + 0*mmsize], m2 + mova [r2q + 2*r3q + 1*mmsize], m3 + mova [r2q + 2*r3q + 2*mmsize], m0 + mova [r2q + 2*r3q + 3*mmsize], m1 + add r1q, 2*mmsize + sub r3q, 2*mmsize + jge .loop + mova m2, [zq] + movq [r2q], m2 + REP_RET diff --git a/libavcodec/x86/sbrdsp_init.c b/libavcodec/x86/sbrdsp_init.c index 8cc37ddd4b..f97479e9d7 100644 --- a/libavcodec/x86/sbrdsp_init.c +++ b/libavcodec/x86/sbrdsp_init.c @@ -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; } } -- cgit v1.2.3