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FFmpeg/libavcodec/x86/sbrdsp.asm

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;******************************************************************************
;* AAC Spectral Band Replication decoding functions
;* Copyright (C) 2012 Christophe Gisquet <christophe.gisquet@gmail.com>
;*
;* 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 "libavutil/x86/x86util.asm"
SECTION_RODATA
; mask equivalent for multiply by -1.0 1.0
ps_mask times 2 dd 1<<31, 0
ps_mask2 times 2 dd 0, 1<<31
ps_mask3 dd 0, 0, 0, 1<<31
ps_noise0 times 2 dd 1.0, 0.0,
ps_noise2 times 2 dd -1.0, 0.0
ps_noise13 dd 0.0, 1.0, 0.0, -1.0
dd 0.0, -1.0, 0.0, 1.0
dd 0.0, 1.0, 0.0, -1.0
cextern sbr_noise_table
cextern ps_neg
SECTION .text
INIT_XMM sse
cglobal sbr_sum_square, 2, 3, 6
mov r2d, r1d
xorps m0, m0
xorps m1, m1
sar r2, 3
jz .prepare
.loop:
movu m2, [r0 + 0]
movu m3, [r0 + 16]
movu m4, [r0 + 32]
movu m5, [r0 + 48]
mulps m2, m2
mulps m3, m3
mulps m4, m4
mulps m5, m5
addps m0, m2
addps m1, m3
addps m0, m4
addps m1, m5
add r0, 64
dec r2
jnz .loop
.prepare:
and r1, 7
sar r1, 1
jz .end
; len is a multiple of 2, thus there are at least 4 elements to process
.endloop:
movu m2, [r0]
add r0, 16
mulps m2, m2
dec r1
addps m0, m2
jnz .endloop
.end:
addps m0, m1
movhlps m2, m0
addps m0, m2
movss m1, m0
shufps m0, m0, 1
addss m0, m1
%if ARCH_X86_64 == 0
movss r0m, m0
fld dword r0m
%endif
RET
%define STEP 40*4*2
cglobal sbr_hf_g_filt, 5, 6, 5
lea r1, [r1 + 8*r4] ; offset by ixh elements into X_high
mov r5, r3
and r3, 0xFC
lea r2, [r2 + r3*4]
lea r0, [r0 + r3*8]
neg r3
jz .loop1
.loop4:
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]
unpcklps m0, m0
unpcklps m1, m1
mulps m0, m2
mulps m1, m3
movu [r0 + 8*r3 + 0], m0
movu [r0 + 8*r3 + 16], m1
add r1, 4*STEP
add r3, 4
jnz .loop4
and r5, 3 ; number of single element loops
jz .end
.loop1: ; element 0 and 1 can be computed at the same time
movss m0, [r2]
movlps m2, [r1]
unpcklps m0, m0
mulps m2, m0
movlps [r0], m2
add r0, 8
add r2, 4
add r1, STEP
dec r5
jnz .loop1
.end:
RET
; void ff_sbr_hf_gen_sse(float (*X_high)[2], const float (*X_low)[2],
; const float alpha0[2], const float alpha1[2],
; float bw, int start, int end)
;
cglobal sbr_hf_gen, 4,4,8, X_high, X_low, alpha0, alpha1, BW, S, E
; load alpha factors
%define bw m0
%if ARCH_X86_64 == 0 || WIN64
movss bw, BWm
%endif
movlps m2, [alpha1q]
movlps m1, [alpha0q]
shufps bw, bw, 0
mulps m2, bw ; (a1[0] a1[1])*bw
mulps m1, bw ; (a0[0] a0[1])*bw = (a2 a3)
mulps m2, bw ; (a1[0] a1[1])*bw*bw = (a0 a1)
mova m3, m1
mova m4, m2
; Set pointers
%if ARCH_X86_64 == 0 || WIN64
; start and end 6th and 7th args on stack
mov r2d, Sm
mov r3d, Em
DEFINE_ARGS X_high, X_low, start, end
%else
; BW does not actually occupy a register, so shift by 1
DEFINE_ARGS X_high, X_low, alpha0, alpha1, start, end
movsxd startq, startd
movsxd endq, endd
%endif
sub startq, endq ; neg num of loops
lea X_highq, [X_highq + endq*2*4]
lea X_lowq, [X_lowq + endq*2*4 - 2*2*4]
shl startq, 3 ; offset from num loops
mova m0, [X_lowq + startq]
shufps m3, m3, q1111
shufps m4, m4, q1111
xorps m3, [ps_mask]
shufps m1, m1, q0000
shufps m2, m2, q0000
xorps m4, [ps_mask]
.loop2:
movu m7, [X_lowq + startq + 8] ; BbCc
mova m6, m0
mova m5, m7
shufps m0, m0, q2301 ; aAbB
shufps m7, m7, q2301 ; bBcC
mulps m0, m4
mulps m7, m3
mulps m6, m2
mulps m5, m1
addps m7, m0
mova m0, [X_lowq + startq + 16] ; CcDd
addps m7, m0
addps m6, m5
addps m7, m6
mova [X_highq + startq], m7
add startq, 16
jnz .loop2
RET
cglobal sbr_sum64x5, 1,2,4,z
lea r1q, [zq+ 256]
.loop:
mova m0, [zq+ 0]
mova m2, [zq+ 16]
mova m1, [zq+ 256]
mova m3, [zq+ 272]
addps m0, [zq+ 512]
addps m2, [zq+ 528]
addps m1, [zq+ 768]
addps m3, [zq+ 784]
addps m0, [zq+1024]
addps m2, [zq+1040]
addps m0, m1
addps m2, m3
mova [zq], m0
mova [zq+16], m2
add zq, 32
cmp zq, r1q
jne .loop
RET
INIT_XMM sse
cglobal sbr_qmf_post_shuffle, 2,3,4,W,z
lea r2q, [zq + (64-4)*4]
mova m3, [ps_neg]
.loop:
mova m1, [zq]
xorps m0, m3, [r2q]
shufps m0, m0, m0, q0123
unpcklps m2, m0, m1
unpckhps m0, m0, m1
mova [Wq + 0], m2
mova [Wq + 16], m0
add Wq, 32
sub r2q, 16
add zq, 16
cmp zq, r2q
jl .loop
RET
INIT_XMM sse
cglobal sbr_neg_odd_64, 1,2,4,z
lea r1q, [zq+256]
.loop:
mova m0, [zq+ 0]
mova m1, [zq+16]
mova m2, [zq+32]
mova m3, [zq+48]
xorps m0, [ps_mask2]
xorps m1, [ps_mask2]
xorps m2, [ps_mask2]
xorps m3, [ps_mask2]
mova [zq+ 0], m0
mova [zq+16], m1
mova [zq+32], m2
mova [zq+48], m3
add zq, 64
cmp zq, r1q
jne .loop
RET
; void ff_sbr_qmf_deint_bfly_sse2(float *v, const float *src0, const float *src1)
INIT_XMM sse2
cglobal sbr_qmf_deint_bfly, 3,5,8, v,src0,src1,vrev,c
mov cq, 64*4-2*mmsize
lea vrevq, [vq + 64*4]
.loop:
mova m0, [src0q+cq]
mova m1, [src1q]
mova m4, [src0q+cq+mmsize]
mova m5, [src1q+mmsize]
pshufd m2, m0, q0123
pshufd m3, m1, q0123
pshufd m6, m4, q0123
pshufd m7, m5, q0123
addps m5, m2
subps m0, m7
addps m1, m6
subps m4, m3
mova [vrevq], m1
mova [vrevq+mmsize], m5
mova [vq+cq], m0
mova [vq+cq+mmsize], m4
add src1q, 2*mmsize
add vrevq, 2*mmsize
sub cq, 2*mmsize
jge .loop
RET
INIT_XMM sse2
cglobal sbr_qmf_pre_shuffle, 1,4,6,z
%define OFFSET (32*4-2*mmsize)
mov r3q, OFFSET
lea r1q, [zq + (32+1)*4]
lea r2q, [zq + 64*4]
mova m5, [ps_neg]
.loop:
movu m0, [r1q]
movu m2, [r1q + mmsize]
movu m1, [zq + r3q + 4 + mmsize]
movu m3, [zq + r3q + 4]
pxor m2, m5
pxor m0, m5
pshufd m2, m2, q0123
pshufd m0, m0, q0123
SBUTTERFLY dq, 2, 3, 4
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
movq m2, [zq]
movq [r2q], m2
RET
%if PIC
%define NREGS 1
%if UNIX64
%define NOISE_TABLE r6q ; r5q is m_max
%else
%define NOISE_TABLE r5q
%endif
%else
%define NREGS 0
%define NOISE_TABLE sbr_noise_table
%endif
%macro LOAD_NST 1
%if PIC
lea NOISE_TABLE, [%1]
mova m0, [kxq + NOISE_TABLE]
%else
mova m0, [kxq + %1]
%endif
%endmacro
INIT_XMM sse2
; sbr_hf_apply_noise_0(float (*Y)[2], const float *s_m,
; const float *q_filt, int noise,
; int kx, int m_max)
cglobal sbr_hf_apply_noise_0, 5,5+NREGS+UNIX64,8, Y,s_m,q_filt,noise,kx,m_max
mova m0, [ps_noise0]
jmp apply_noise_main
; sbr_hf_apply_noise_1(float (*Y)[2], const float *s_m,
; const float *q_filt, int noise,
; int kx, int m_max)
cglobal sbr_hf_apply_noise_1, 5,5+NREGS+UNIX64,8, Y,s_m,q_filt,noise,kx,m_max
and kxq, 1
shl kxq, 4
LOAD_NST ps_noise13
jmp apply_noise_main
; sbr_hf_apply_noise_2(float (*Y)[2], const float *s_m,
; const float *q_filt, int noise,
; int kx, int m_max)
cglobal sbr_hf_apply_noise_2, 5,5+NREGS+UNIX64,8, Y,s_m,q_filt,noise,kx,m_max
mova m0, [ps_noise2]
jmp apply_noise_main
; sbr_hf_apply_noise_3(float (*Y)[2], const float *s_m,
; const float *q_filt, int noise,
; int kx, int m_max)
cglobal sbr_hf_apply_noise_3, 5,5+NREGS+UNIX64,8, Y,s_m,q_filt,noise,kx,m_max
and kxq, 1
shl kxq, 4
LOAD_NST ps_noise13+16
apply_noise_main:
%if ARCH_X86_64 == 0 || WIN64
mov kxd, m_maxm
DEFINE_ARGS Y, s_m, q_filt, noise, count
%else
DEFINE_ARGS Y, s_m, q_filt, noise, kx, count
%endif
movsxdifnidn noiseq, noised
dec noiseq
shl countd, 2
%if PIC
lea NOISE_TABLE, [sbr_noise_table]
%endif
lea Yq, [Yq + 2*countq]
add s_mq, countq
add q_filtq, countq
shl noiseq, 3
pxor m5, m5
neg countq
.loop:
mova m1, [q_filtq + countq]
movu m3, [noiseq + NOISE_TABLE + 1*mmsize]
movu m4, [noiseq + NOISE_TABLE + 2*mmsize]
add noiseq, 2*mmsize
and noiseq, 0x1ff<<3
punpckhdq m2, m1, m1
punpckldq m1, m1
mulps m1, m3 ; m2 = q_filt[m] * ff_sbr_noise_table[noise]
mulps m2, m4 ; m2 = q_filt[m] * ff_sbr_noise_table[noise]
mova m3, [s_mq + countq]
; TODO: replace by a vpermd in AVX2
punpckhdq m4, m3, m3
punpckldq m3, m3
pcmpeqd m6, m3, m5 ; m6 == 0
pcmpeqd m7, m4, m5 ; m7 == 0
mulps m3, m0 ; s_m[m] * phi_sign
mulps m4, m0 ; s_m[m] * phi_sign
pand m1, m6
pand m2, m7
movu m6, [Yq + 2*countq]
movu m7, [Yq + 2*countq + mmsize]
addps m3, m1
addps m4, m2
addps m6, m3
addps m7, m4
movu [Yq + 2*countq], m6
movu [Yq + 2*countq + mmsize], m7
add countq, 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
RET
%macro SBR_AUTOCORRELATE 0
cglobal sbr_autocorrelate, 2,3,8,32, x, phi, cnt
mov cntq, 37*8
add xq, cntq
neg cntq
%if cpuflag(sse3)
%define MOVH movsd
movddup m5, [xq+cntq]
%else
%define MOVH movlps
movlps m5, [xq+cntq]
movlhps m5, m5
%endif
MOVH m7, [xq+cntq+8 ]
MOVH m1, [xq+cntq+16]
shufps m7, m7, q0110
shufps m1, m1, q0110
mulps m3, m5, m7 ; x[0][0] * x[1][0], x[0][1] * x[1][1], x[0][0] * x[1][1], x[0][1] * x[1][0]
mulps m4, m5, m5 ; x[0][0] * x[0][0], x[0][1] * x[0][1];
mulps m5, m1 ; real_sum2 = x[0][0] * x[2][0], x[0][1] * x[2][1]; imag_sum2 = x[0][0] * x[2][1], x[0][1] * x[2][0]
movaps [rsp ], m3
movaps [rsp+16], m4
add cntq, 8
MOVH m2, [xq+cntq+16]
movlhps m7, m7
shufps m2, m2, q0110
mulps m6, m7, m1 ; real_sum1 = x[1][0] * x[2][0], x[1][1] * x[2][1]; imag_sum1 += x[1][0] * x[2][1], x[1][1] * x[2][0]
mulps m4, m7, m2
mulps m7, m7 ; real_sum0 = x[1][0] * x[1][0], x[1][1] * x[1][1];
addps m5, m4 ; real_sum2 += x[1][0] * x[3][0], x[1][1] * x[3][1]; imag_sum2 += x[1][0] * x[3][1], x[1][1] * x[3][0]
align 16
.loop:
add cntq, 8
MOVH m0, [xq+cntq+16]
movlhps m1, m1
shufps m0, m0, q0110
mulps m3, m1, m2
mulps m4, m1, m0
mulps m1, m1
addps m6, m3 ; real_sum1 += x[i][0] * x[i + 1][0], x[i][1] * x[i + 1][1]; imag_sum1 += x[i][0] * x[i + 1][1], x[i][1] * x[i + 1][0];
addps m5, m4 ; real_sum2 += x[i][0] * x[i + 2][0], x[i][1] * x[i + 2][1]; imag_sum2 += x[i][0] * x[i + 2][1], x[i][1] * x[i + 2][0];
addps m7, m1 ; real_sum0 += x[i][0] * x[i][0], x[i][1] * x[i][1];
add cntq, 8
MOVH m1, [xq+cntq+16]
movlhps m2, m2
shufps m1, m1, q0110
mulps m3, m2, m0
mulps m4, m2, m1
mulps m2, m2
addps m6, m3 ; real_sum1 += x[i][0] * x[i + 1][0], x[i][1] * x[i + 1][1]; imag_sum1 += x[i][0] * x[i + 1][1], x[i][1] * x[i + 1][0];
addps m5, m4 ; real_sum2 += x[i][0] * x[i + 2][0], x[i][1] * x[i + 2][1]; imag_sum2 += x[i][0] * x[i + 2][1], x[i][1] * x[i + 2][0];
addps m7, m2 ; real_sum0 += x[i][0] * x[i][0], x[i][1] * x[i][1];
add cntq, 8
MOVH m2, [xq+cntq+16]
movlhps m0, m0
shufps m2, m2, q0110
mulps m3, m0, m1
mulps m4, m0, m2
mulps m0, m0
addps m6, m3 ; real_sum1 += x[i][0] * x[i + 1][0], x[i][1] * x[i + 1][1]; imag_sum1 += x[i][0] * x[i + 1][1], x[i][1] * x[i + 1][0];
addps m5, m4 ; real_sum2 += x[i][0] * x[i + 2][0], x[i][1] * x[i + 2][1]; imag_sum2 += x[i][0] * x[i + 2][1], x[i][1] * x[i + 2][0];
addps m7, m0 ; real_sum0 += x[i][0] * x[i][0], x[i][1] * x[i][1];
jl .loop
movlhps m1, m1
mulps m2, m1
mulps m1, m1
addps m2, m6 ; real_sum1 + x[38][0] * x[39][0], x[38][1] * x[39][1]; imag_sum1 + x[38][0] * x[39][1], x[38][1] * x[39][0];
addps m1, m7 ; real_sum0 + x[38][0] * x[38][0], x[38][1] * x[38][1];
addps m6, [rsp ] ; real_sum1 + x[ 0][0] * x[ 1][0], x[ 0][1] * x[ 1][1]; imag_sum1 + x[ 0][0] * x[ 1][1], x[ 0][1] * x[ 1][0];
addps m7, [rsp+16] ; real_sum0 + x[ 0][0] * x[ 0][0], x[ 0][1] * x[ 0][1];
xorps m2, [ps_mask3]
xorps m5, [ps_mask3]
xorps m6, [ps_mask3]
HADDPS m2, m5, m3
HADDPS m7, m6, m4
%if cpuflag(sse3)
movshdup m0, m1
%else
movss m0, m1
shufps m1, m1, q0001
%endif
addss m1, m0
movaps [phiq ], m2
movhps [phiq+0x18], m7
movss [phiq+0x28], m7
movss [phiq+0x10], m1
RET
%endmacro
INIT_XMM sse
SBR_AUTOCORRELATE
INIT_XMM sse3
SBR_AUTOCORRELATE