1;****************************************************************************** 2;* SIMD optimized DSP functions for G722 coding 3;* 4;* Copyright (c) 2014 James Almer 5;* 6;* This file is part of FFmpeg. 7;* 8;* FFmpeg is free software; you can redistribute it and/or 9;* modify it under the terms of the GNU Lesser General Public 10;* License as published by the Free Software Foundation; either 11;* version 2.1 of the License, or (at your option) any later version. 12;* 13;* FFmpeg is distributed in the hope that it will be useful, 14;* but WITHOUT ANY WARRANTY; without even the implied warranty of 15;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16;* Lesser General Public License for more details. 17;* 18;* You should have received a copy of the GNU Lesser General Public 19;* License along with FFmpeg; if not, write to the Free Software 20;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 21;****************************************************************************** 22 23%include "libavutil/x86/x86util.asm" 24 25SECTION_RODATA 26 27pw_qmf_coeffs: dw 3, -210, -11, -805, -11, 951, 53, 3876 28pw_qmf_coeffs2: dw 12, 3876, -156, 951, 32, -805, 362, -210 29pw_qmf_coeffs3: dw 362, 0 , 32, 0, -156, 0, 12, 0 30pw_qmf_coeffs4: dw 53, 0, -11, 0, -11, 0, 3, 0 31 32SECTION .text 33 34INIT_XMM sse2 35cglobal g722_apply_qmf, 2, 2, 5, prev, out 36 movu m0, [prevq+mmsize*0] 37 movu m1, [prevq+mmsize*1] 38 movu m2, [prevq+mmsize*2] 39 punpcklwd m3, m0, m1 40 punpckhwd m0, m1 41 punpcklwd m4, m2, m2 42 punpckhwd m2, m2 43 pmaddwd m3, [pw_qmf_coeffs ] 44 pmaddwd m0, [pw_qmf_coeffs2] 45 pmaddwd m4, [pw_qmf_coeffs3] 46 pmaddwd m2, [pw_qmf_coeffs4] 47 paddd m0, m3 48 paddd m2, m4 49 paddd m0, m2 50 pshufd m2, m0, q0032 51 paddd m0, m2 52 pshufd m0, m0, q0001 53 movq [outq], m0 54 RET 55