1/* 2 * ARM NEON optimised Format Conversion Utils 3 * Copyright (c) 2008 Mans Rullgard <mans@mansr.com> 4 * Copyright (c) 2015 Janne Grunau <janne-libav@jannau.net> 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 "config.h" 24#include "libavutil/aarch64/asm.S" 25 26function ff_int32_to_float_fmul_scalar_neon, export=1 27 ld1 {v1.4s,v2.4s}, [x1], #32 28 scvtf v1.4s, v1.4s 29 scvtf v2.4s, v2.4s 301: 31 subs w2, w2, #8 32 fmul v3.4s, v1.4s, v0.s[0] 33 fmul v4.4s, v2.4s, v0.s[0] 34 b.le 2f 35 ld1 {v1.4s,v2.4s}, [x1], #32 36 st1 {v3.4s,v4.4s}, [x0], #32 37 scvtf v1.4s, v1.4s 38 scvtf v2.4s, v2.4s 39 b 1b 402: 41 st1 {v3.4s,v4.4s}, [x0] 42 ret 43endfunc 44 45function ff_int32_to_float_fmul_array8_neon, export=1 46 lsr w4, w4, #3 47 subs w5, w4, #1 48 b.eq 1f 492: 50 ld1 {v0.4s,v1.4s}, [x2], #32 51 ld1 {v2.4s,v3.4s}, [x2], #32 52 scvtf v0.4s, v0.4s 53 scvtf v1.4s, v1.4s 54 ld1 {v16.2s}, [x3], #8 55 scvtf v2.4s, v2.4s 56 scvtf v3.4s, v3.4s 57 fmul v4.4s, v0.4s, v16.s[0] 58 fmul v5.4s, v1.4s, v16.s[0] 59 fmul v6.4s, v2.4s, v16.s[1] 60 fmul v7.4s, v3.4s, v16.s[1] 61 st1 {v4.4s,v5.4s}, [x1], #32 62 st1 {v6.4s,v7.4s}, [x1], #32 63 subs w5, w5, #2 64 b.gt 2b 65 b.eq 1f 66 ret 671: 68 ld1 {v0.4s,v1.4s}, [x2] 69 ld1 {v16.s}[0], [x3] 70 scvtf v0.4s, v0.4s 71 scvtf v1.4s, v1.4s 72 fmul v4.4s, v0.4s, v16.s[0] 73 fmul v5.4s, v1.4s, v16.s[0] 74 st1 {v4.4s,v5.4s}, [x1] 75 ret 76endfunc 77