mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
bbe95f7353
From x86inc: > On AMD cpus <=K10, an ordinary ret is slow if it immediately follows either > a branch or a branch target. So switch to a 2-byte form of ret in that case. > We can automatically detect "follows a branch", but not a branch target. > (SSSE3 is a sufficient condition to know that your cpu doesn't have this problem.) x86inc can automatically determine whether to use REP_RET rather than REP in most of these cases, so impact is minimal. Additionally, a few REP_RETs were used unnecessary, despite the return being nowhere near a branch. The only CPUs affected were AMD K10s, made between 2007 and 2011, 16 years ago and 12 years ago, respectively. In the future, everyone involved with x86inc should consider dropping REP_RETs altogether.
494 lines
13 KiB
NASM
494 lines
13 KiB
NASM
;******************************************************************************
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;* SIMD optimized MPEG-4 Parametric Stereo decoding functions
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;*
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;* Copyright (C) 2015 James Almer
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;******************************************************************************
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%include "libavutil/x86/x86util.asm"
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SECTION_RODATA
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ps_p1m1p1m1: dd 0, 0x80000000, 0, 0x80000000
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SECTION .text
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;*************************************************************************
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;void ff_ps_add_squares_<opt>(float *dst, const float (*src)[2], int n);
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;*************************************************************************
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%macro PS_ADD_SQUARES 1
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cglobal ps_add_squares, 3, 3, %1, dst, src, n
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shl nd, 3
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add srcq, nq
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neg nq
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align 16
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.loop:
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movaps m0, [srcq+nq]
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movaps m1, [srcq+nq+mmsize]
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mulps m0, m0
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mulps m1, m1
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HADDPS m0, m1, m2
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addps m0, [dstq]
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movaps [dstq], m0
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add dstq, mmsize
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add nq, mmsize*2
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jl .loop
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RET
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%endmacro
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INIT_XMM sse
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PS_ADD_SQUARES 2
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INIT_XMM sse3
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PS_ADD_SQUARES 3
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;*******************************************************************
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;void ff_ps_mul_pair_single_sse(float (*dst)[2], float (*src0)[2],
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; float *src1, int n);
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;*******************************************************************
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INIT_XMM sse
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cglobal ps_mul_pair_single, 4, 4, 4, dst, src1, src2, n
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shl nd, 3
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add src1q, nq
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add dstq, nq
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neg nq
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align 16
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.loop:
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movu m0, [src1q+nq]
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movu m1, [src1q+nq+mmsize]
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mova m2, [src2q]
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mova m3, m2
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unpcklps m2, m2
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unpckhps m3, m3
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mulps m0, m2
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mulps m1, m3
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mova [dstq+nq], m0
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mova [dstq+nq+mmsize], m1
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add src2q, mmsize
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add nq, mmsize*2
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jl .loop
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RET
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;***********************************************************************
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;void ff_ps_stereo_interpolate_sse3(float (*l)[2], float (*r)[2],
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; float h[2][4], float h_step[2][4],
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; int len);
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;***********************************************************************
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INIT_XMM sse3
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cglobal ps_stereo_interpolate, 5, 5, 6, l, r, h, h_step, n
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movaps m0, [hq]
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movaps m1, [h_stepq]
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unpcklps m4, m0, m0
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unpckhps m0, m0
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unpcklps m5, m1, m1
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unpckhps m1, m1
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shl nd, 3
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add lq, nq
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add rq, nq
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neg nq
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align 16
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.loop:
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addps m4, m5
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addps m0, m1
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movddup m2, [lq+nq]
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movddup m3, [rq+nq]
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mulps m2, m4
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mulps m3, m0
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addps m2, m3
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movsd [lq+nq], m2
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movhps [rq+nq], m2
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add nq, 8
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jl .loop
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RET
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;***************************************************************************
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;void ps_stereo_interpolate_ipdopd_sse3(float (*l)[2], float (*r)[2],
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; float h[2][4], float h_step[2][4],
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; int len);
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;***************************************************************************
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INIT_XMM sse3
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cglobal ps_stereo_interpolate_ipdopd, 5, 5, 10, l, r, h, h_step, n
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movaps m0, [hq]
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movaps m1, [hq+mmsize]
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%if ARCH_X86_64
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movaps m8, [h_stepq]
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movaps m9, [h_stepq+mmsize]
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%define H_STEP0 m8
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%define H_STEP1 m9
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%else
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%define H_STEP0 [h_stepq]
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%define H_STEP1 [h_stepq+mmsize]
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%endif
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shl nd, 3
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add lq, nq
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add rq, nq
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neg nq
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align 16
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.loop:
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addps m0, H_STEP0
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addps m1, H_STEP1
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movddup m2, [lq+nq]
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movddup m3, [rq+nq]
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shufps m4, m2, m2, q2301
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shufps m5, m3, m3, q2301
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unpcklps m6, m0, m0
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unpckhps m7, m0, m0
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mulps m2, m6
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mulps m3, m7
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unpcklps m6, m1, m1
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unpckhps m7, m1, m1
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mulps m4, m6
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mulps m5, m7
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addps m2, m3
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addsubps m2, m4
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addsubps m2, m5
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movsd [lq+nq], m2
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movhps [rq+nq], m2
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add nq, 8
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jl .loop
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RET
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;**********************************************************
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;void ps_hybrid_analysis_ileave_sse(float out[2][38][64],
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; float (*in)[32][2],
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; int i, int len)
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;**********************************************************
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INIT_XMM sse
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cglobal ps_hybrid_analysis_ileave, 3, 7, 5, out, in, i, len, in0, in1, tmp
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movsxdifnidn iq, id
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mov lend, 32 << 3
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lea inq, [inq+iq*4]
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mov tmpd, id
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shl tmpd, 8
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add outq, tmpq
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mov tmpd, 64
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sub tmpd, id
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mov id, tmpd
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test id, 1
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jne .loop4
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test id, 2
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jne .loop8
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align 16
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.loop16:
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mov in0q, inq
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mov in1q, 38*64*4
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add in1q, in0q
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mov tmpd, lend
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.inner_loop16:
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movaps m0, [in0q]
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movaps m1, [in1q]
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movaps m2, [in0q+lenq]
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movaps m3, [in1q+lenq]
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TRANSPOSE4x4PS 0, 1, 2, 3, 4
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movaps [outq], m0
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movaps [outq+lenq], m1
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movaps [outq+lenq*2], m2
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movaps [outq+3*32*2*4], m3
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lea in0q, [in0q+lenq*2]
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lea in1q, [in1q+lenq*2]
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add outq, mmsize
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sub tmpd, mmsize
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jg .inner_loop16
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add inq, 16
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add outq, 3*32*2*4
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sub id, 4
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jg .loop16
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RET
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align 16
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.loop8:
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mov in0q, inq
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mov in1q, 38*64*4
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add in1q, in0q
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mov tmpd, lend
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.inner_loop8:
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movlps m0, [in0q]
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movlps m1, [in1q]
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movhps m0, [in0q+lenq]
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movhps m1, [in1q+lenq]
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SBUTTERFLYPS 0, 1, 2
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SBUTTERFLYPD 0, 1, 2
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movaps [outq], m0
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movaps [outq+lenq], m1
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lea in0q, [in0q+lenq*2]
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lea in1q, [in1q+lenq*2]
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add outq, mmsize
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sub tmpd, mmsize
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jg .inner_loop8
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add inq, 8
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add outq, lenq
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sub id, 2
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jg .loop16
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RET
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align 16
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.loop4:
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mov in0q, inq
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mov in1q, 38*64*4
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add in1q, in0q
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mov tmpd, lend
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.inner_loop4:
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movss m0, [in0q]
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movss m1, [in1q]
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movss m2, [in0q+lenq]
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movss m3, [in1q+lenq]
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movlhps m0, m1
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movlhps m2, m3
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shufps m0, m2, q2020
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movaps [outq], m0
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lea in0q, [in0q+lenq*2]
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lea in1q, [in1q+lenq*2]
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add outq, mmsize
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sub tmpd, mmsize
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jg .inner_loop4
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add inq, 4
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sub id, 1
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test id, 2
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jne .loop8
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cmp id, 4
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jge .loop16
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RET
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;***********************************************************
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;void ps_hybrid_synthesis_deint_sse4(float out[2][38][64],
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; float (*in)[32][2],
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; int i, int len)
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;***********************************************************
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%macro HYBRID_SYNTHESIS_DEINT 0
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cglobal ps_hybrid_synthesis_deint, 3, 7, 5, out, in, i, len, out0, out1, tmp
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%if cpuflag(sse4)
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%define MOVH movsd
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%else
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%define MOVH movlps
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%endif
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movsxdifnidn iq, id
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mov lend, 32 << 3
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lea outq, [outq+iq*4]
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mov tmpd, id
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shl tmpd, 8
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add inq, tmpq
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mov tmpd, 64
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sub tmpd, id
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mov id, tmpd
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test id, 1
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jne .loop4
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test id, 2
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jne .loop8
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align 16
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.loop16:
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mov out0q, outq
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mov out1q, 38*64*4
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add out1q, out0q
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mov tmpd, lend
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.inner_loop16:
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movaps m0, [inq]
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movaps m1, [inq+lenq]
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movaps m2, [inq+lenq*2]
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movaps m3, [inq+3*32*2*4]
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TRANSPOSE4x4PS 0, 1, 2, 3, 4
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movaps [out0q], m0
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movaps [out1q], m1
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movaps [out0q+lenq], m2
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movaps [out1q+lenq], m3
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lea out0q, [out0q+lenq*2]
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lea out1q, [out1q+lenq*2]
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add inq, mmsize
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sub tmpd, mmsize
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jg .inner_loop16
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add outq, 16
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add inq, 3*32*2*4
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sub id, 4
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jg .loop16
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RET
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align 16
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.loop8:
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mov out0q, outq
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mov out1q, 38*64*4
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add out1q, out0q
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mov tmpd, lend
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.inner_loop8:
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movaps m0, [inq]
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movaps m1, [inq+lenq]
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SBUTTERFLYPS 0, 1, 2
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SBUTTERFLYPD 0, 1, 2
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MOVH [out0q], m0
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MOVH [out1q], m1
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movhps [out0q+lenq], m0
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movhps [out1q+lenq], m1
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lea out0q, [out0q+lenq*2]
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lea out1q, [out1q+lenq*2]
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add inq, mmsize
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sub tmpd, mmsize
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jg .inner_loop8
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add outq, 8
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add inq, lenq
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sub id, 2
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jg .loop16
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RET
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align 16
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.loop4:
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mov out0q, outq
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mov out1q, 38*64*4
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add out1q, out0q
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mov tmpd, lend
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.inner_loop4:
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movaps m0, [inq]
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movss [out0q], m0
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%if cpuflag(sse4)
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extractps [out1q], m0, 1
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extractps [out0q+lenq], m0, 2
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extractps [out1q+lenq], m0, 3
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%else
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movhlps m1, m0
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movss [out0q+lenq], m1
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shufps m0, m0, 0xb1
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movss [out1q], m0
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movhlps m1, m0
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movss [out1q+lenq], m1
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%endif
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lea out0q, [out0q+lenq*2]
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lea out1q, [out1q+lenq*2]
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add inq, mmsize
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sub tmpd, mmsize
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jg .inner_loop4
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add outq, 4
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sub id, 1
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test id, 2
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jne .loop8
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cmp id, 4
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jge .loop16
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RET
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%endmacro
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INIT_XMM sse
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HYBRID_SYNTHESIS_DEINT
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INIT_XMM sse4
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HYBRID_SYNTHESIS_DEINT
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;*******************************************************************
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;void ff_ps_hybrid_analysis_<opt>(float (*out)[2], float (*in)[2],
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; const float (*filter)[8][2],
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; ptrdiff_t stride, int n);
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;*******************************************************************
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%macro PS_HYBRID_ANALYSIS_IN 1
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movu m0, [inq+mmsize*%1]
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movu m1, [inq+mmsize*(5-%1)+8]
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shufps m3, m0, m0, q2301
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shufps m4, m1, m1, q0123
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shufps m1, m1, q1032
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%if cpuflag(sse3)
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addsubps m3, m4
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addsubps m0, m1
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%else
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xorps m4, m7
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xorps m1, m7
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subps m3, m4
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subps m0, m1
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%endif
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mova [rsp+mmsize*%1*2], m3
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mova [rsp+mmsize+mmsize*%1*2], m0
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%endmacro
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%macro PS_HYBRID_ANALYSIS_LOOP 3
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mova m2, [filterq+nq+mmsize*%3]
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shufps m2, m2, q2301
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%if cpuflag(fma3)
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%if %3
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fmaddps m3, m2, [rsp+mmsize*%3*2], m3
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fmaddps m0, m2, [rsp+mmsize+mmsize*%3*2], m0
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%else
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mulps m3, m2, [rsp]
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mulps m0, m2, [rsp+mmsize]
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%endif
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%else ; cpuflag(sse)
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mova %2, [rsp+mmsize*%3*2]
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mova %1, [rsp+mmsize+mmsize*%3*2]
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mulps %2, m2
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mulps %1, m2
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%if %3
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addps m3, %2
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addps m0, %1
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%endif
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%endif
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%endmacro
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%macro PS_HYBRID_ANALYSIS 0
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cglobal ps_hybrid_analysis, 5, 5, 5 + notcpuflag(fma3) * 3, 24 * 4, out, in, filter, stride, n
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%if cpuflag(sse3)
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%define MOVH movsd
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%else
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%define MOVH movlps
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mova m7, [ps_p1m1p1m1]
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%endif
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shl strideq, 3
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shl nd, 6
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add filterq, nq
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neg nq
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PS_HYBRID_ANALYSIS_IN 0
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PS_HYBRID_ANALYSIS_IN 1
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PS_HYBRID_ANALYSIS_IN 2
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align 16
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.loop:
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PS_HYBRID_ANALYSIS_LOOP m0, m3, 0
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PS_HYBRID_ANALYSIS_LOOP m5, m6, 1
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PS_HYBRID_ANALYSIS_LOOP m5, m6, 2
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shufps m1, m3, m3, q2301
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shufps m2, m0, m0, q2301
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subps m1, m3
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addps m2, m0
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unpcklps m3, m1, m2
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unpckhps m1, m2
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addps m1, m3
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movu m2, [inq+6*8] ; faster than movlps and no risk of overread
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movss m3, [filterq+nq+8*6]
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SPLATD m3
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%if cpuflag(fma3)
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fmaddps m1, m2, m3, m1
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%else
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mulps m2, m3
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addps m1, m2
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%endif
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MOVH [outq], m1
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add outq, strideq
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add nq, 64
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jl .loop
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RET
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%endmacro
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INIT_XMM sse
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PS_HYBRID_ANALYSIS
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INIT_XMM fma3
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PS_HYBRID_ANALYSIS
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