1 /* 2 * Copyright (c) 2020 Martin Storsjo 3 * 4 * This file is part of FFmpeg. 5 * 6 * FFmpeg is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * FFmpeg is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with FFmpeg; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21 #include "libavutil/arm/asm.S" 22 23 .macro vld1_8 dst, src, incr, aligned 24 .if \aligned 25 vld1.8 {\dst}, [\src, :64], \incr 26 .else 27 vld1.8 {\dst}, [\src], \incr 28 .endif 29 .endm 30 31 .macro get_pixels suffix, aligned 32 function ff_get_pixels\suffix\()_neon, export=1 33 mov r3, #8 34 1: 35 vld1_8 d0, r1, r2, \aligned 36 subs r3, r3, #2 37 vld1_8 d2, r1, r2, \aligned 38 vmovl.u8 q0, d0 39 vmovl.u8 q1, d2 40 vst1.16 {q0, q1}, [r0, :128]! 41 bgt 1b 42 43 bx lr 44 endfunc 45 .endm 46 47 get_pixels , aligned=1 48 get_pixels _unaligned, aligned=0 49 50 .macro diff_pixels suffix, aligned=0 51 function ff_diff_pixels\suffix\()_neon, export=1 52 mov r12, #8 53 1: 54 vld1_8 d0, r1, r3, \aligned 55 vld1_8 d1, r2, r3, \aligned 56 subs r12, r12, #2 57 vld1_8 d2, r1, r3, \aligned 58 vsubl.u8 q0, d0, d1 59 vld1_8 d3, r2, r3, \aligned 60 vsubl.u8 q1, d2, d3 61 vst1.16 {q0, q1}, [r0]! 62 bgt 1b 63 64 bx lr 65 endfunc 66 .endm 67 68 diff_pixels , aligned=1 69 diff_pixels _unaligned, aligned=0 70