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117 lines
4.0 KiB
NASM
117 lines
4.0 KiB
NASM
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;******************************************************************************
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;* TAK DSP SIMD optimizations
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;*
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;* Copyright (C) 2015 Paul B Mahol
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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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pd_128: times 4 dd 128
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SECTION .text
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INIT_XMM sse2
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cglobal tak_decorrelate_ls, 3, 3, 2, p1, p2, length
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shl lengthd, 2
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add p1q, lengthq
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add p2q, lengthq
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neg lengthq
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.loop:
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mova m0, [p1q+lengthq+mmsize*0]
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mova m1, [p1q+lengthq+mmsize*1]
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paddd m0, [p2q+lengthq+mmsize*0]
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paddd m1, [p2q+lengthq+mmsize*1]
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mova [p2q+lengthq+mmsize*0], m0
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mova [p2q+lengthq+mmsize*1], m1
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add lengthq, mmsize*2
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jl .loop
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REP_RET
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cglobal tak_decorrelate_sr, 3, 3, 2, p1, p2, length
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shl lengthd, 2
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add p1q, lengthq
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add p2q, lengthq
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neg lengthq
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.loop:
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mova m0, [p2q+lengthq+mmsize*0]
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mova m1, [p2q+lengthq+mmsize*1]
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psubd m0, [p1q+lengthq+mmsize*0]
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psubd m1, [p1q+lengthq+mmsize*1]
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mova [p1q+lengthq+mmsize*0], m0
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mova [p1q+lengthq+mmsize*1], m1
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add lengthq, mmsize*2
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jl .loop
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REP_RET
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cglobal tak_decorrelate_sm, 3, 3, 6, p1, p2, length
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shl lengthd, 2
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add p1q, lengthq
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add p2q, lengthq
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neg lengthq
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.loop:
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mova m0, [p1q+lengthq]
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mova m1, [p2q+lengthq]
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mova m3, [p1q+lengthq+mmsize]
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mova m4, [p2q+lengthq+mmsize]
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mova m2, m1
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mova m5, m4
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psrad m2, 1
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psrad m5, 1
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psubd m0, m2
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psubd m3, m5
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paddd m1, m0
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paddd m4, m3
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mova [p1q+lengthq], m0
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mova [p2q+lengthq], m1
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mova [p1q+lengthq+mmsize], m3
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mova [p2q+lengthq+mmsize], m4
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add lengthq, mmsize*2
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jl .loop
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REP_RET
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INIT_XMM sse4
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cglobal tak_decorrelate_sf, 3, 3, 5, p1, p2, length, dshift, dfactor
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shl lengthd, 2
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add p1q, lengthq
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add p2q, lengthq
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neg lengthq
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movd m2, dshiftm
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movd m3, dfactorm
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pshufd m3, m3, 0
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mova m4, [pd_128]
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.loop:
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mova m0, [p1q+lengthq]
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mova m1, [p2q+lengthq]
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psrad m1, m2
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pmulld m1, m3
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paddd m1, m4
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psrad m1, 8
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pslld m1, m2
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psubd m1, m0
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mova [p1q+lengthq], m1
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add lengthq, mmsize
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jl .loop
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REP_RET
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