repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * Copyright (c) 2009 Mans Rullgard <mans@mansr.com> | |
| 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 | function ff_add_pixels_clamped_armv6, export=1 | |
| 24 | push {r4-r8,lr} | |
| 25 | mov r3, #8 | |
| 26 | 1: | |
| 27 | ldm r0!, {r4,r5,r12,lr} | |
| 28 | ldrd r6, r7, [r1] | |
| 29 | pkhbt r8, r4, r5, lsl #16 | |
| 30 | pkhtb r5, r5, r4, asr #16 | |
| 31 | pkhbt r4, r12, lr, lsl #16 | |
| 32 | pkhtb lr, lr, r12, asr #16 | |
| 33 | pld [r1, r2] | |
| 34 | uxtab16 r8, r8, r6 | |
| 35 | uxtab16 r5, r5, r6, ror #8 | |
| 36 | uxtab16 r4, r4, r7 | |
| 37 | uxtab16 lr, lr, r7, ror #8 | |
| 38 | usat16 r8, #8, r8 | |
| 39 | usat16 r5, #8, r5 | |
| 40 | usat16 r4, #8, r4 | |
| 41 | usat16 lr, #8, lr | |
| 42 | orr r6, r8, r5, lsl #8 | |
| 43 | orr r7, r4, lr, lsl #8 | |
| 44 | subs r3, r3, #1 | |
| 45 | strd_post r6, r7, r1, r2 | |
| 46 | bgt 1b | |
| 47 | pop {r4-r8,pc} | |
| 48 | endfunc |