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74 lines
2.1 KiB
74 lines
2.1 KiB
;****************************************************************************** |
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;* FLAC DSP SIMD optimizations |
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;* |
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;* Copyright (C) 2014 Loren Merritt |
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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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%macro LPC_32 1 |
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INIT_XMM %1 |
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cglobal flac_lpc_32, 5,6,5, decoded, coeffs, pred_order, qlevel, len, j |
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sub lend, pred_orderd |
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jle .ret |
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lea decodedq, [decodedq+pred_orderq*4-8] |
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lea coeffsq, [coeffsq+pred_orderq*4] |
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neg pred_orderq |
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movd m4, qlevelm |
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ALIGN 16 |
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.loop_sample: |
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movd m0, [decodedq+pred_orderq*4+8] |
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add decodedq, 8 |
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movd m1, [coeffsq+pred_orderq*4] |
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pxor m2, m2 |
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pxor m3, m3 |
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lea jq, [pred_orderq+1] |
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test jq, jq |
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jz .end_order |
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.loop_order: |
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PMACSDQL m2, m0, m1, m2, m0 |
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movd m0, [decodedq+jq*4] |
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PMACSDQL m3, m1, m0, m3, m1 |
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movd m1, [coeffsq+jq*4] |
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inc jq |
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jl .loop_order |
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.end_order: |
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PMACSDQL m2, m0, m1, m2, m0 |
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psrlq m2, m4 |
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movd m0, [decodedq] |
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paddd m0, m2 |
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movd [decodedq], m0 |
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sub lend, 2 |
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jl .ret |
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PMACSDQL m3, m1, m0, m3, m1 |
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psrlq m3, m4 |
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movd m1, [decodedq+4] |
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paddd m1, m3 |
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movd [decodedq+4], m1 |
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jg .loop_sample |
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.ret: |
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REP_RET |
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%endmacro |
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%if HAVE_XOP_EXTERNAL |
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LPC_32 xop |
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%endif |
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LPC_32 sse4
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