/* * Copyright (c) 2008 Mans Rullgard <mans@mansr.com> * * 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/aarch64/asm.S" function ff_vorbis_inverse_coupling_neon, export=1 movi v20.4s, #1<<7, lsl #24 subs x2, x2, #4 mov x3, x0 mov x4, x1 b.eq 3f ld1 {v7.4s}, [x1], #16 ld1 {v6.4s}, [x0], #16 cmle v4.4s, v7.4s, #0 and v5.16b, v6.16b, v20.16b eor v7.16b, v7.16b, v5.16b and v2.16b, v7.16b, v4.16b bic v3.16b, v7.16b, v4.16b fadd v7.4s, v6.4s, v2.4s fsub v6.4s, v6.4s, v3.4s 1: ld1 {v1.4s}, [x1], #16 ld1 {v0.4s}, [x0], #16 cmle v4.4s, v1.4s, #0 and v5.16b, v0.16b, v20.16b eor v1.16b, v1.16b, v5.16b st1 {v7.4s}, [x3], #16 st1 {v6.4s}, [x4], #16 and v2.16b, v1.16b, v4.16b bic v3.16b, v1.16b, v4.16b fadd v1.4s, v0.4s, v2.4s fsub v0.4s, v0.4s, v3.4s subs x2, x2, #8 b.le 2f ld1 {v7.4s}, [x1], #16 ld1 {v6.4s}, [x0], #16 cmle v4.4s, v7.4s, #0 and v5.16b, v6.16b, v20.16b eor v7.16b, v7.16b, v5.16b st1 {v1.4s}, [x3], #16 st1 {v0.4s}, [x4], #16 and v2.16b, v7.16b, v4.16b bic v3.16b, v7.16b, v4.16b fadd v7.4s, v6.4s, v2.4s fsub v6.4s, v6.4s, v3.4s b 1b 2: st1 {v1.4s}, [x3], #16 st1 {v0.4s}, [x4], #16 b.lt ret 3: ld1 {v1.4s}, [x1] ld1 {v0.4s}, [x0] cmle v4.4s, v1.4s, #0 and v5.16b, v0.16b, v20.16b eor v1.16b, v1.16b, v5.16b and v2.16b, v1.16b, v4.16b bic v3.16b, v1.16b, v4.16b fadd v1.4s, v0.4s, v2.4s fsub v0.4s, v0.4s, v3.4s st1 {v1.4s}, [x0], #16 st1 {v0.4s}, [x1], #16 ret: ret endfunc