| /* |
| * Copyright (c) 2020 Martin Storsjo |
| * |
| * 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_get_pixels_neon, export=1 |
| mov w3, #8 |
| 1: |
| ld1 {v0.8b}, [x1], x2 |
| subs w3, w3, #2 |
| ld1 {v1.8b}, [x1], x2 |
| uxtl v0.8h, v0.8b |
| uxtl v1.8h, v1.8b |
| st1 {v0.8h, v1.8h}, [x0], #32 |
| b.gt 1b |
| |
| ret |
| endfunc |
| |
| function ff_diff_pixels_neon, export=1 |
| mov w4, #8 |
| 1: |
| ld1 {v0.8b}, [x1], x3 |
| ld1 {v1.8b}, [x2], x3 |
| subs w4, w4, #2 |
| ld1 {v2.8b}, [x1], x3 |
| usubl v0.8h, v0.8b, v1.8b |
| ld1 {v3.8b}, [x2], x3 |
| usubl v1.8h, v2.8b, v3.8b |
| st1 {v0.8h, v1.8h}, [x0], #32 |
| b.gt 1b |
| |
| ret |
| endfunc |
