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sbrdsp.asm: convert all instructions to float/SSE ones.

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Since the values are floats, using the float operations
makes sense, improves performance on some CPUs and
makes the code SSE compatible instead of needing SSE2.

Based on suggestion by Jason.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
This commit is contained in:
Reimar Döffinger 2012-03-07 21:35:13 +01:00 committed by Ronald S. Bultje
parent 3416d0805e
commit 6eda85e15b
1 changed files with 8 additions and 8 deletions
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16
libavcodec/x86/sbrdsp.asm
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@ -82,14 +82,14 @@ cglobal sbr_hf_g_filt, 5, 6, 5
lea r0, [r0 + r3*8]
neg r3
.loop4:
movq m0, [r2 + 4*r3 + 0]
movq m1, [r2 + 4*r3 + 8]
movq m2, [r1 + 0*STEP]
movq m3, [r1 + 2*STEP]
movlps m0, [r2 + 4*r3 + 0]
movlps m1, [r2 + 4*r3 + 8]
movlps m2, [r1 + 0*STEP]
movlps m3, [r1 + 2*STEP]
movhps m2, [r1 + 1*STEP]
movhps m3, [r1 + 3*STEP]
punpckldq m0, m0
punpckldq m1, m1
unpcklps m0, m0
unpcklps m1, m1
mulps m0, m2
mulps m1, m3
movu [r0 + 8*r3 + 0], m0
@ -101,8 +101,8 @@ cglobal sbr_hf_g_filt, 5, 6, 5
jz .end
.loop1: ; element 0 and 1 can be computed at the same time
movss m0, [r2]
movq m2, [r1]
punpckldq m0, m0
movlps m2, [r1]
unpcklps m0, m0
mulps m2, m0
movlps [r0], m2
add r0, 8