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ffmpeg/libavutil/x86/float_dsp.asm
Christophe Gisquet 133b34207c x86: float dsp: unroll SSE versions 
vector_fmul and vector_fmac_scalar are guaranteed that they can process in
batch of 16 elements, but their SSE versions only does 8 at a time.

Therefore, unroll them a bit.
299 to 261c for 256 elements in vector_fmac_scalar on Arrandale/Win64.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-02-15 18:54:21 +01:00

299 lines
8.0 KiB
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;*****************************************************************************
;* x86-optimized Float DSP functions
;*
;* Copyright 2006 Loren Merritt
;*
;* This file is part of FFmpeg.
;*
;* FFmpeg is free software; you can redistribute it and/or
;* modify it under the terms of the GNU Lesser General Public
;* License as published by the Free Software Foundation; either
;* version 2.1 of the License, or (at your option) any later version.
;*
;* FFmpeg is distributed in the hope that it will be useful,
;* but WITHOUT ANY WARRANTY; without even the implied warranty of
;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;* Lesser General Public License for more details.
;*
;* You should have received a copy of the GNU Lesser General Public
;* License along with FFmpeg; if not, write to the Free Software
;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;******************************************************************************
%include "x86util.asm"
SECTION .text
;-----------------------------------------------------------------------------
; void vector_fmul(float *dst, const float *src0, const float *src1, int len)
;-----------------------------------------------------------------------------
%macro VECTOR_FMUL 0
cglobal vector_fmul, 4,4,2, dst, src0, src1, len
lea lenq, [lend*4 - 64]
ALIGN 16
.loop:
%assign a 0
%rep 32/mmsize
mova m0, [src0q + lenq + (a+0)*mmsize]
mova m1, [src0q + lenq + (a+1)*mmsize]
mulps m0, m0, [src1q + lenq + (a+0)*mmsize]
mulps m1, m1, [src1q + lenq + (a+1)*mmsize]
mova [dstq + lenq + (a+0)*mmsize], m0
mova [dstq + lenq + (a+1)*mmsize], m1
%assign a a+2
%endrep
sub lenq, 64
jge .loop
REP_RET
%endmacro
INIT_XMM sse
VECTOR_FMUL
%if HAVE_AVX_EXTERNAL
INIT_YMM avx
VECTOR_FMUL
%endif
;------------------------------------------------------------------------------
; void ff_vector_fmac_scalar(float *dst, const float *src, float mul, int len)
;------------------------------------------------------------------------------
%macro VECTOR_FMAC_SCALAR 0
%if UNIX64
cglobal vector_fmac_scalar, 3,3,3, dst, src, len
%else
cglobal vector_fmac_scalar, 4,4,3, dst, src, mul, len
%endif
%if ARCH_X86_32
VBROADCASTSS m0, mulm
%else
%if WIN64
mova xmm0, xmm2
%endif
shufps xmm0, xmm0, 0
%if cpuflag(avx)
vinsertf128 m0, m0, xmm0, 1
%endif
%endif
lea lenq, [lend*4-64]
.loop:
%assign a 0
%rep 32/mmsize
mulps m1, m0, [srcq+lenq+(a+0)*mmsize]
mulps m2, m0, [srcq+lenq+(a+1)*mmsize]
addps m1, m1, [dstq+lenq+(a+0)*mmsize]
addps m2, m2, [dstq+lenq+(a+1)*mmsize]
mova [dstq+lenq+(a+0)*mmsize], m1
mova [dstq+lenq+(a+1)*mmsize], m2
%assign a a+2
%endrep
sub lenq, 64
jge .loop
REP_RET
%endmacro
INIT_XMM sse
VECTOR_FMAC_SCALAR
%if HAVE_AVX_EXTERNAL
INIT_YMM avx
VECTOR_FMAC_SCALAR
%endif
;------------------------------------------------------------------------------
; void ff_vector_fmul_scalar(float *dst, const float *src, float mul, int len)
;------------------------------------------------------------------------------
%macro VECTOR_FMUL_SCALAR 0
%if UNIX64
cglobal vector_fmul_scalar, 3,3,2, dst, src, len
%else
cglobal vector_fmul_scalar, 4,4,3, dst, src, mul, len
%endif
%if ARCH_X86_32
movss m0, mulm
%elif WIN64
SWAP 0, 2
%endif
shufps m0, m0, 0
lea lenq, [lend*4-mmsize]
.loop:
mova m1, [srcq+lenq]
mulps m1, m0
mova [dstq+lenq], m1
sub lenq, mmsize
jge .loop
REP_RET
%endmacro
INIT_XMM sse
VECTOR_FMUL_SCALAR
;------------------------------------------------------------------------------
; void ff_vector_dmul_scalar(double *dst, const double *src, double mul,
; int len)
;------------------------------------------------------------------------------
%macro VECTOR_DMUL_SCALAR 0
%if ARCH_X86_32
cglobal vector_dmul_scalar, 3,4,3, dst, src, mul, len, lenaddr
mov lenq, lenaddrm
%elif UNIX64
cglobal vector_dmul_scalar, 3,3,3, dst, src, len
%else
cglobal vector_dmul_scalar, 4,4,3, dst, src, mul, len
%endif
%if ARCH_X86_32
VBROADCASTSD m0, mulm
%else
%if WIN64
movlhps xmm2, xmm2
%if cpuflag(avx)
vinsertf128 ymm2, ymm2, xmm2, 1
%endif
SWAP 0, 2
%else
movlhps xmm0, xmm0
%if cpuflag(avx)
vinsertf128 ymm0, ymm0, xmm0, 1
%endif
%endif
%endif
lea lenq, [lend*8-2*mmsize]
.loop:
mulpd m1, m0, [srcq+lenq ]
mulpd m2, m0, [srcq+lenq+mmsize]
mova [dstq+lenq ], m1
mova [dstq+lenq+mmsize], m2
sub lenq, 2*mmsize
jge .loop
REP_RET
%endmacro
INIT_XMM sse2
VECTOR_DMUL_SCALAR
%if HAVE_AVX_EXTERNAL
INIT_YMM avx
VECTOR_DMUL_SCALAR
%endif
;-----------------------------------------------------------------------------
; vector_fmul_add(float *dst, const float *src0, const float *src1,
; const float *src2, int len)
;-----------------------------------------------------------------------------
%macro VECTOR_FMUL_ADD 0
cglobal vector_fmul_add, 5,5,2, dst, src0, src1, src2, len
lea lenq, [lend*4 - 2*mmsize]
ALIGN 16
.loop:
mova m0, [src0q + lenq]
mova m1, [src0q + lenq + mmsize]
mulps m0, m0, [src1q + lenq]
mulps m1, m1, [src1q + lenq + mmsize]
addps m0, m0, [src2q + lenq]
addps m1, m1, [src2q + lenq + mmsize]
mova [dstq + lenq], m0
mova [dstq + lenq + mmsize], m1
sub lenq, 2*mmsize
jge .loop
REP_RET
%endmacro
INIT_XMM sse
VECTOR_FMUL_ADD
%if HAVE_AVX_EXTERNAL
INIT_YMM avx
VECTOR_FMUL_ADD
%endif
;-----------------------------------------------------------------------------
; void vector_fmul_reverse(float *dst, const float *src0, const float *src1,
; int len)
;-----------------------------------------------------------------------------
%macro VECTOR_FMUL_REVERSE 0
cglobal vector_fmul_reverse, 4,4,2, dst, src0, src1, len
lea lenq, [lend*4 - 2*mmsize]
ALIGN 16
.loop:
%if cpuflag(avx)
vmovaps xmm0, [src1q + 16]
vinsertf128 m0, m0, [src1q], 1
vshufps m0, m0, m0, q0123
vmovaps xmm1, [src1q + mmsize + 16]
vinsertf128 m1, m1, [src1q + mmsize], 1
vshufps m1, m1, m1, q0123
%else
mova m0, [src1q]
mova m1, [src1q + mmsize]
shufps m0, m0, q0123
shufps m1, m1, q0123
%endif
mulps m0, m0, [src0q + lenq + mmsize]
mulps m1, m1, [src0q + lenq]
mova [dstq + lenq + mmsize], m0
mova [dstq + lenq], m1
add src1q, 2*mmsize
sub lenq, 2*mmsize
jge .loop
REP_RET
%endmacro
INIT_XMM sse
VECTOR_FMUL_REVERSE
%if HAVE_AVX_EXTERNAL
INIT_YMM avx
VECTOR_FMUL_REVERSE
%endif
; float scalarproduct_float_sse(const float *v1, const float *v2, int len)
INIT_XMM sse
cglobal scalarproduct_float, 3,3,2, v1, v2, offset
neg offsetq
shl offsetq, 2
sub v1q, offsetq
sub v2q, offsetq
xorps xmm0, xmm0
.loop:
movaps xmm1, [v1q+offsetq]
mulps xmm1, [v2q+offsetq]
addps xmm0, xmm1
add offsetq, 16
js .loop
movhlps xmm1, xmm0
addps xmm0, xmm1
movss xmm1, xmm0
shufps xmm0, xmm0, 1
addss xmm0, xmm1
%if ARCH_X86_64 == 0
movss r0m, xmm0
fld dword r0m
%endif
RET
;-----------------------------------------------------------------------------
; void ff_butterflies_float(float *src0, float *src1, int len);
;-----------------------------------------------------------------------------
INIT_XMM sse
cglobal butterflies_float, 3,3,3, src0, src1, len
%if ARCH_X86_64
movsxd lenq, lend
%endif
test lenq, lenq
jz .end
shl lenq, 2
add src0q, lenq
add src1q, lenq
neg lenq
.loop:
mova m0, [src0q + lenq]
mova m1, [src1q + lenq]
subps m2, m0, m1
addps m0, m0, m1
mova [src1q + lenq], m2
mova [src0q + lenq], m0
add lenq, mmsize
jl .loop
.end:
REP_RET
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