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