| /* | |
| * 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/arm/asm.S" | |
| .macro vld1_8 dst, src, incr, aligned | |
| .if \aligned | |
| vld1.8 {\dst}, [\src, :64], \incr | |
| .else | |
| vld1.8 {\dst}, [\src], \incr | |
| .endif | |
| .endm | |
| .macro get_pixels suffix, aligned | |
| function ff_get_pixels\suffix\()_neon, export=1 | |
| mov r3, #8 | |
| 1: | |
| vld1_8 d0, r1, r2, \aligned | |
| subs r3, r3, #2 | |
| vld1_8 d2, r1, r2, \aligned | |
| vmovl.u8 q0, d0 | |
| vmovl.u8 q1, d2 | |
| vst1.16 {q0, q1}, [r0, :128]! | |
| bgt 1b | |
| bx lr | |
| endfunc | |
| .endm | |
| get_pixels , aligned=1 | |
| get_pixels _unaligned, aligned=0 | |
| .macro diff_pixels suffix, aligned=0 | |
| function ff_diff_pixels\suffix\()_neon, export=1 | |
| mov r12, #8 | |
| 1: | |
| vld1_8 d0, r1, r3, \aligned | |
| vld1_8 d1, r2, r3, \aligned | |
| subs r12, r12, #2 | |
| vld1_8 d2, r1, r3, \aligned | |
| vsubl.u8 q0, d0, d1 | |
| vld1_8 d3, r2, r3, \aligned | |
| vsubl.u8 q1, d2, d3 | |
| vst1.16 {q0, q1}, [r0]! | |
| bgt 1b | |
| bx lr | |
| endfunc | |
| .endm | |
| diff_pixels , aligned=1 | |
| diff_pixels _unaligned, aligned=0 |