| /* |
| * ARM NEON optimised Format Conversion Utils |
| * Copyright (c) 2008 Mans Rullgard <mans@mansr.com> |
| * Copyright (c) 2015 Janne Grunau <janne-libav@jannau.net> |
| * |
| * 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 "config.h" |
| #include "libavutil/aarch64/asm.S" |
| |
| function ff_int32_to_float_fmul_scalar_neon, export=1 |
| ld1 {v1.4s,v2.4s}, [x1], #32 |
| scvtf v1.4s, v1.4s |
| scvtf v2.4s, v2.4s |
| 1: |
| subs w2, w2, #8 |
| fmul v3.4s, v1.4s, v0.s[0] |
| fmul v4.4s, v2.4s, v0.s[0] |
| b.le 2f |
| ld1 {v1.4s,v2.4s}, [x1], #32 |
| st1 {v3.4s,v4.4s}, [x0], #32 |
| scvtf v1.4s, v1.4s |
| scvtf v2.4s, v2.4s |
| b 1b |
| 2: |
| st1 {v3.4s,v4.4s}, [x0] |
| ret |
| endfunc |
| |
| function ff_int32_to_float_fmul_array8_neon, export=1 |
| lsr w4, w4, #3 |
| subs w5, w4, #1 |
| b.eq 1f |
| 2: |
| ld1 {v0.4s,v1.4s}, [x2], #32 |
| ld1 {v2.4s,v3.4s}, [x2], #32 |
| scvtf v0.4s, v0.4s |
| scvtf v1.4s, v1.4s |
| ld1 {v16.2s}, [x3], #8 |
| scvtf v2.4s, v2.4s |
| scvtf v3.4s, v3.4s |
| fmul v4.4s, v0.4s, v16.s[0] |
| fmul v5.4s, v1.4s, v16.s[0] |
| fmul v6.4s, v2.4s, v16.s[1] |
| fmul v7.4s, v3.4s, v16.s[1] |
| st1 {v4.4s,v5.4s}, [x1], #32 |
| st1 {v6.4s,v7.4s}, [x1], #32 |
| subs w5, w5, #2 |
| b.gt 2b |
| b.eq 1f |
| ret |
| 1: |
| ld1 {v0.4s,v1.4s}, [x2] |
| ld1 {v16.s}[0], [x3] |
| scvtf v0.4s, v0.4s |
| scvtf v1.4s, v1.4s |
| fmul v4.4s, v0.4s, v16.s[0] |
| fmul v5.4s, v1.4s, v16.s[0] |
| st1 {v4.4s,v5.4s}, [x1] |
| ret |
| endfunc |
