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_get_pixels_armv6, export=1 | |
| 24 | pld [r1, r2] | |
| 25 | push {r4-r8, lr} | |
| 26 | mov lr, #8 | |
| 27 | 1: | |
| 28 | ldrd_post r4, r5, r1, r2 | |
| 29 | subs lr, lr, #1 | |
| 30 | uxtb16 r6, r4 | |
| 31 | uxtb16 r4, r4, ror #8 | |
| 32 | uxtb16 r12, r5 | |
| 33 | uxtb16 r8, r5, ror #8 | |
| 34 | pld [r1, r2] | |
| 35 | pkhbt r5, r6, r4, lsl #16 | |
| 36 | pkhtb r6, r4, r6, asr #16 | |
| 37 | pkhbt r7, r12, r8, lsl #16 | |
| 38 | pkhtb r12, r8, r12, asr #16 | |
| 39 | stm r0!, {r5,r6,r7,r12} | |
| 40 | bgt 1b | |
| 41 | ||
| 42 | pop {r4-r8, pc} | |
| 43 | endfunc | |
| 44 | ||
| 45 | function ff_diff_pixels_armv6, export=1 | |
| 46 | pld [r1, r3] | |
| 47 | pld [r2, r3] | |
| 48 | push {r4-r9, lr} | |
| 49 | mov lr, #8 | |
| 50 | 1: | |
| 51 | ldrd_post r4, r5, r1, r3 | |
| 52 | ldrd_post r6, r7, r2, r3 | |
| 53 | uxtb16 r8, r4 | |
| 54 | uxtb16 r4, r4, ror #8 | |
| 55 | uxtb16 r9, r6 | |
| 56 | uxtb16 r6, r6, ror #8 | |
| 57 | pld [r1, r3] | |
| 58 | ssub16 r9, r8, r9 | |
| 59 | ssub16 r6, r4, r6 | |
| 60 | uxtb16 r8, r5 | |
| 61 | uxtb16 r5, r5, ror #8 | |
| 62 | pld [r2, r3] | |
| 63 | pkhbt r4, r9, r6, lsl #16 | |
| 64 | pkhtb r6, r6, r9, asr #16 | |
| 65 | uxtb16 r9, r7 | |
| 66 | uxtb16 r7, r7, ror #8 | |
| 67 | ssub16 r9, r8, r9 | |
| 68 | ssub16 r5, r5, r7 | |
| 69 | subs lr, lr, #1 | |
| 70 | pkhbt r8, r9, r5, lsl #16 | |
| 71 | pkhtb r9, r5, r9, asr #16 | |
| 72 | stm r0!, {r4,r6,r8,r9} | |
| 73 | bgt 1b | |
| 74 | ||
| 75 | pop {r4-r9, pc} | |
| 76 | endfunc |