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;******************************************************************************
;* SIMD optimized MPEG-4 Parametric Stereo decoding functions
;*
;* Copyright (C) 2015 James Almer
;*
;* 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
ps_p1m1p1m1: dd 0, 0x80000000, 0, 0x80000000
SECTION .text
;*************************************************************************
;void ff_ps_add_squares_<opt>(float *dst, const float (*src)[2], int n);
;*************************************************************************
%macro PS_ADD_SQUARES 1
cglobal ps_add_squares, 3, 3, %1, dst, src, n
shl nd, 3
add srcq, nq
neg nq
align 16
.loop:
movaps m0, [srcq+nq]
movaps m1, [srcq+nq+mmsize]
mulps m0, m0
mulps m1, m1
HADDPS m0, m1, m2
addps m0, [dstq]
movaps [dstq], m0
add dstq, mmsize
add nq, mmsize*2
jl .loop
REP_RET
%endmacro
INIT_XMM sse
PS_ADD_SQUARES 2
INIT_XMM sse3
PS_ADD_SQUARES 3
;*******************************************************************
;void ff_ps_mul_pair_single_sse(float (*dst)[2], float (*src0)[2],
; float *src1, int n);
;*******************************************************************
INIT_XMM sse
cglobal ps_mul_pair_single, 4, 5, 4, dst, src1, src2, n
xor r4q, r4q
.loop:
movu m0, [src1q+r4q]
movu m1, [src1q+r4q+mmsize]
mova m2, [src2q]
mova m3, m2
unpcklps m2, m2
unpckhps m3, m3
mulps m0, m2
mulps m1, m3
mova [dstq+r4q], m0
mova [dstq+r4q+mmsize], m1
add src2q, mmsize
add r4q, mmsize*2
sub nd, mmsize/4
jg .loop
REP_RET
;***********************************************************************
;void ff_ps_stereo_interpolate_sse3(float (*l)[2], float (*r)[2],
; float h[2][4], float h_step[2][4],
; int len);
;***********************************************************************
INIT_XMM sse3
cglobal ps_stereo_interpolate, 5, 5, 6, l, r, h, h_step, n
movaps m0, [hq]
movaps m1, [h_stepq]
cmp nd, 0
jle .ret
shl nd, 3
add lq, nq
add rq, nq
neg nq
align 16
.loop:
addps m0, m1
movddup m2, [lq+nq]
movddup m3, [rq+nq]
movaps m4, m0
movaps m5, m0
unpcklps m4, m4
unpckhps m5, m5
mulps m2, m4
mulps m3, m5
addps m2, m3
movsd [lq+nq], m2
movhps [rq+nq], m2
add nq, 8
jl .loop
.ret:
REP_RET
;*******************************************************************
;void ff_ps_hybrid_analysis_<opt>(float (*out)[2], float (*in)[2],
; const float (*filter)[8][2],
; int stride, int n);
;*******************************************************************
%macro PS_HYBRID_ANALYSIS_LOOP 3
movu %1, [inq+mmsize*%3]
movu m1, [inq+mmsize*(5-%3)+8]
%if cpuflag(sse3)
pshufd %2, %1, q2301
pshufd m4, m1, q0123
pshufd m1, m1, q1032
pshufd m2, [filterq+nq+mmsize*%3], q2301
addsubps %2, m4
addsubps %1, m1
%else
mova m2, [filterq+nq+mmsize*%3]
mova %2, %1
mova m4, m1
shufps %2, %2, q2301
shufps m4, m4, q0123
shufps m1, m1, q1032
shufps m2, m2, q2301
xorps m4, m7
xorps m1, m7
subps %2, m4
subps %1, m1
%endif
mulps %2, m2
mulps %1, m2
%if %3
addps m3, %2
addps m0, %1
%endif
%endmacro
%macro PS_HYBRID_ANALYSIS 0
cglobal ps_hybrid_analysis, 5, 5, 8, out, in, filter, stride, n
%if cpuflag(sse3)
%define MOVH movsd
%else
%define MOVH movlps
%endif
shl strided, 3
shl nd, 6
add filterq, nq
neg nq
mova m7, [ps_p1m1p1m1]
align 16
.loop:
PS_HYBRID_ANALYSIS_LOOP m0, m3, 0
PS_HYBRID_ANALYSIS_LOOP m5, m6, 1
PS_HYBRID_ANALYSIS_LOOP m5, m6, 2
%if cpuflag(sse3)
pshufd m3, m3, q2301
xorps m0, m7
hsubps m3, m0
pshufd m1, m3, q0020
pshufd m3, m3, q0031
addps m1, m3
movsd m2, [inq+6*8]
%else
mova m1, m3
mova m2, m0
shufps m1, m1, q2301
shufps m2, m2, q2301
subps m1, m3
addps m2, m0
unpcklps m3, m1, m2
unpckhps m1, m2
addps m1, m3
movu m2, [inq+6*8] ; faster than movlps and no risk of overread
%endif
movss m3, [filterq+nq+8*6]
SPLATD m3
mulps m2, m3
addps m1, m2
MOVH [outq], m1
add outq, strideq
add nq, 64
jl .loop
REP_RET
%endmacro
INIT_XMM sse
PS_HYBRID_ANALYSIS
INIT_XMM sse3
PS_HYBRID_ANALYSIS
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