| /* | |
| * Copyright (c) 2009 Mans Rullgard <mans@mansr.com> | |
| * | |
| * 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" | |
| function ff_add_pixels_clamped_armv6, export=1 | |
| push {r4-r8,lr} | |
| mov r3, #8 | |
| 1: | |
| ldm r0!, {r4,r5,r12,lr} | |
| ldrd r6, r7, [r1] | |
| pkhbt r8, r4, r5, lsl #16 | |
| pkhtb r5, r5, r4, asr #16 | |
| pkhbt r4, r12, lr, lsl #16 | |
| pkhtb lr, lr, r12, asr #16 | |
| pld [r1, r2] | |
| uxtab16 r8, r8, r6 | |
| uxtab16 r5, r5, r6, ror #8 | |
| uxtab16 r4, r4, r7 | |
| uxtab16 lr, lr, r7, ror #8 | |
| usat16 r8, #8, r8 | |
| usat16 r5, #8, r5 | |
| usat16 r4, #8, r4 | |
| usat16 lr, #8, lr | |
| orr r6, r8, r5, lsl #8 | |
| orr r7, r4, lr, lsl #8 | |
| subs r3, r3, #1 | |
| strd_post r6, r7, r1, r2 | |
| bgt 1b | |
| pop {r4-r8,pc} | |
| endfunc |