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66 lines
2.1 KiB
66 lines
2.1 KiB
;****************************************************************************** |
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;* x86 optimized channel mixing |
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;* Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com> |
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;* |
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;* This file is part of Libav. |
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;* |
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;* Libav 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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;* Libav 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 Libav; 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 "x86inc.asm" |
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%include "x86util.asm" |
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SECTION_TEXT |
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;----------------------------------------------------------------------------- |
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; void ff_mix_2_to_1_fltp_flt(float **src, float **matrix, int len, |
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; int out_ch, int in_ch); |
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;----------------------------------------------------------------------------- |
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%macro MIX_2_TO_1_FLTP_FLT 0 |
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cglobal mix_2_to_1_fltp_flt, 3,4,6, src, matrix, len, src1 |
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mov src1q, [srcq+gprsize] |
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mov srcq, [srcq ] |
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sub src1q, srcq |
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mov matrixq, [matrixq ] |
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VBROADCASTSS m4, [matrixq ] |
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VBROADCASTSS m5, [matrixq+4] |
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ALIGN 16 |
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.loop: |
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mulps m0, m4, [srcq ] |
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mulps m1, m5, [srcq+src1q ] |
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mulps m2, m4, [srcq+ mmsize] |
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mulps m3, m5, [srcq+src1q+mmsize] |
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addps m0, m0, m1 |
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addps m2, m2, m3 |
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mova [srcq ], m0 |
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mova [srcq+mmsize], m2 |
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add srcq, mmsize*2 |
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sub lend, mmsize*2/4 |
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jg .loop |
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%if mmsize == 32 |
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vzeroupper |
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RET |
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%else |
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REP_RET |
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%endif |
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%endmacro |
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INIT_XMM sse |
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MIX_2_TO_1_FLTP_FLT |
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%if HAVE_AVX |
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INIT_YMM avx |
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MIX_2_TO_1_FLTP_FLT |
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%endif
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