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x86/synth_filter: Revert the switch to float ops with SSE2

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This reverts the changes 64672098361361cd15d37e36f747ab44de5b80ca
and 68c3ed936a76c3ff7738f602fa90237ac7e3ce08 did to the SSE2 version,
which generated a hit of about 5 cycles.

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
James Almer 2014-03-01 23:46:27 -03:00 committed by Michael Niedermayer
parent f5d1d1e466
commit 884e085d1e
1 changed files with 17 additions and 4 deletions
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21
libavcodec/x86/dcadsp.asm
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@ -199,6 +199,14 @@ INIT_XMM sse
DCA_LFE_FIR 0
DCA_LFE_FIR 1
%macro SETZERO 1
%if cpuflag(sse2) && notcpuflag(avx)
pxor %1, %1
%else
xorps %1, %1, %1
%endif
%endmacro
%macro SHUF 3
%if cpuflag(avx)
mova %3, [%2 - 16]
@ -265,7 +273,12 @@ cglobal synth_filter_inner, 0, 6 + 4 * ARCH_X86_64, 7 + 6 * ARCH_X86_64, \
synth_buf, synth_buf2, window, out, off, scale
%define scale m0
%if ARCH_X86_32 || WIN64
%if cpuflag(sse2) && notcpuflag(avx)
movd m0, scalem
SPLATD m0
%else
VBROADCASTSS m0, scalem
%endif
; Make sure offset is in a register and not on the stack
%define OFFQ r4q
%else
@ -290,8 +303,8 @@ cglobal synth_filter_inner, 0, 6 + 4 * ARCH_X86_64, 7 + 6 * ARCH_X86_64, \
%endif
.mainloop
; m1 = a m2 = b m3 = c m4 = d
xorps m3, m3, m3
xorps m4, m4, m4
SETZERO m3
SETZERO m4
mova m1, [buf2 + i]
mova m2, [buf2 + i + 16 * 4]
%if ARCH_X86_32
@ -308,8 +321,8 @@ cglobal synth_filter_inner, 0, 6 + 4 * ARCH_X86_64, 7 + 6 * ARCH_X86_64, \
%define ptr2 r7q ; must be loaded
%define win r8q
%define j r9q
xorps m9, m9, m9
xorps m10, m10, m10
SETZERO m9
SETZERO m10
mova m7, [buf2 + i + mmsize]
mova m8, [buf2 + i + mmsize + 16 * 4]
lea win, [windowq + i]