mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
134 lines
3.5 KiB
NASM
134 lines
3.5 KiB
NASM
;******************************************************************************
|
|
;* ALAC DSP SIMD optimizations
|
|
;*
|
|
;* 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 .text
|
|
|
|
INIT_XMM sse4
|
|
%if ARCH_X86_64
|
|
cglobal alac_decorrelate_stereo, 2, 5, 8, buf0, len, shift, weight, buf1
|
|
%else
|
|
cglobal alac_decorrelate_stereo, 2, 3, 8, buf0, len, shift, weight
|
|
%define buf1q r2q
|
|
%endif
|
|
movd m6, shiftm
|
|
movd m7, weightm
|
|
SPLATD m7
|
|
shl lend, 2
|
|
mov buf1q, [buf0q + gprsize]
|
|
mov buf0q, [buf0q]
|
|
add buf1q, lenq
|
|
add buf0q, lenq
|
|
neg lenq
|
|
|
|
align 16
|
|
.loop:
|
|
mova m0, [buf0q + lenq]
|
|
mova m1, [buf0q + lenq + mmsize]
|
|
mova m2, [buf1q + lenq]
|
|
mova m3, [buf1q + lenq + mmsize]
|
|
pmulld m4, m2, m7
|
|
pmulld m5, m3, m7
|
|
psrad m4, m6
|
|
psrad m5, m6
|
|
psubd m0, m4
|
|
psubd m1, m5
|
|
paddd m2, m0
|
|
paddd m3, m1
|
|
mova [buf1q + lenq], m0
|
|
mova [buf1q + lenq + mmsize], m1
|
|
mova [buf0q + lenq], m2
|
|
mova [buf0q + lenq + mmsize], m3
|
|
|
|
add lenq, mmsize*2
|
|
jl .loop
|
|
RET
|
|
|
|
INIT_XMM sse2
|
|
cglobal alac_append_extra_bits_stereo, 2, 5, 5, buf0, exbuf0, buf1, exbuf1, len
|
|
movifnidn lend, lenm
|
|
movd m4, r2m ; exbits
|
|
shl lend, 2
|
|
mov buf1q, [buf0q + gprsize]
|
|
mov buf0q, [buf0q]
|
|
mov exbuf1q, [exbuf0q + gprsize]
|
|
mov exbuf0q, [exbuf0q]
|
|
add buf1q, lenq
|
|
add buf0q, lenq
|
|
add exbuf1q, lenq
|
|
add exbuf0q, lenq
|
|
neg lenq
|
|
|
|
align 16
|
|
.loop:
|
|
mova m0, [buf0q + lenq]
|
|
mova m1, [buf0q + lenq + mmsize]
|
|
pslld m0, m4
|
|
pslld m1, m4
|
|
mova m2, [buf1q + lenq]
|
|
mova m3, [buf1q + lenq + mmsize]
|
|
pslld m2, m4
|
|
pslld m3, m4
|
|
por m0, [exbuf0q + lenq]
|
|
por m1, [exbuf0q + lenq + mmsize]
|
|
por m2, [exbuf1q + lenq]
|
|
por m3, [exbuf1q + lenq + mmsize]
|
|
mova [buf0q + lenq ], m0
|
|
mova [buf0q + lenq + mmsize], m1
|
|
mova [buf1q + lenq ], m2
|
|
mova [buf1q + lenq + mmsize], m3
|
|
|
|
add lenq, mmsize*2
|
|
jl .loop
|
|
REP_RET
|
|
|
|
%if ARCH_X86_64
|
|
cglobal alac_append_extra_bits_mono, 2, 5, 3, buf, exbuf, exbits, ch, len
|
|
%else
|
|
cglobal alac_append_extra_bits_mono, 2, 3, 3, buf, exbuf, len
|
|
%define exbitsm r2m
|
|
%endif
|
|
movifnidn lend, r4m
|
|
movd m2, exbitsm
|
|
shl lend, 2
|
|
mov bufq, [bufq]
|
|
mov exbufq, [exbufq]
|
|
add bufq, lenq
|
|
add exbufq, lenq
|
|
neg lenq
|
|
|
|
align 16
|
|
.loop:
|
|
mova m0, [bufq + lenq]
|
|
mova m1, [bufq + lenq + mmsize]
|
|
pslld m0, m2
|
|
pslld m1, m2
|
|
por m0, [exbufq + lenq]
|
|
por m1, [exbufq + lenq + mmsize]
|
|
mova [bufq + lenq], m0
|
|
mova [bufq + lenq + mmsize], m1
|
|
|
|
add lenq, mmsize*2
|
|
jl .loop
|
|
REP_RET
|