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