media/libvpx/vp9/common/arm/neon/vp9_copy_neon.asm@ac0c01689b40 (annotated)
media/libvpx/vp9/common/arm/neon/vp9_copy_neon.asm
Thu, 15 Jan 2015 15:59:08 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:59:08 +0100
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
- permissions
- -rw-r--r--
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | ; |
| michael@0 | 2 | ; Copyright (c) 2013 The WebM project authors. All Rights Reserved. |
| michael@0 | 3 | ; |
| michael@0 | 4 | ; Use of this source code is governed by a BSD-style license |
| michael@0 | 5 | ; that can be found in the LICENSE file in the root of the source |
| michael@0 | 6 | ; tree. An additional intellectual property rights grant can be found |
| michael@0 | 7 | ; in the file PATENTS. All contributing project authors may |
| michael@0 | 8 | ; be found in the AUTHORS file in the root of the source tree. |
| michael@0 | 9 | ; |
| michael@0 | 10 | |
| michael@0 | 11 | EXPORT |vp9_convolve_copy_neon| |
| michael@0 | 12 | ARM |
| michael@0 | 13 | REQUIRE8 |
| michael@0 | 14 | PRESERVE8 |
| michael@0 | 15 | |
| michael@0 | 16 | AREA ||.text||, CODE, READONLY, ALIGN=2 |
| michael@0 | 17 | |
| michael@0 | 18 | |vp9_convolve_copy_neon| PROC |
| michael@0 | 19 | push {r4-r5, lr} |
| michael@0 | 20 | ldrd r4, r5, [sp, #28] |
| michael@0 | 21 | |
| michael@0 | 22 | cmp r4, #32 |
| michael@0 | 23 | bgt copy64 |
| michael@0 | 24 | beq copy32 |
| michael@0 | 25 | cmp r4, #8 |
| michael@0 | 26 | bgt copy16 |
| michael@0 | 27 | beq copy8 |
| michael@0 | 28 | b copy4 |
| michael@0 | 29 | |
| michael@0 | 30 | copy64 |
| michael@0 | 31 | sub lr, r1, #32 |
| michael@0 | 32 | sub r3, r3, #32 |
| michael@0 | 33 | copy64_h |
| michael@0 | 34 | pld [r0, r1, lsl #1] |
| michael@0 | 35 | vld1.8 {q0-q1}, [r0]! |
| michael@0 | 36 | vld1.8 {q2-q3}, [r0], lr |
| michael@0 | 37 | vst1.8 {q0-q1}, [r2@128]! |
| michael@0 | 38 | vst1.8 {q2-q3}, [r2@128], r3 |
| michael@0 | 39 | subs r5, r5, #1 |
| michael@0 | 40 | bgt copy64_h |
| michael@0 | 41 | pop {r4-r5, pc} |
| michael@0 | 42 | |
| michael@0 | 43 | copy32 |
| michael@0 | 44 | pld [r0, r1, lsl #1] |
| michael@0 | 45 | vld1.8 {q0-q1}, [r0], r1 |
| michael@0 | 46 | pld [r0, r1, lsl #1] |
| michael@0 | 47 | vld1.8 {q2-q3}, [r0], r1 |
| michael@0 | 48 | vst1.8 {q0-q1}, [r2@128], r3 |
| michael@0 | 49 | vst1.8 {q2-q3}, [r2@128], r3 |
| michael@0 | 50 | subs r5, r5, #2 |
| michael@0 | 51 | bgt copy32 |
| michael@0 | 52 | pop {r4-r5, pc} |
| michael@0 | 53 | |
| michael@0 | 54 | copy16 |
| michael@0 | 55 | pld [r0, r1, lsl #1] |
| michael@0 | 56 | vld1.8 {q0}, [r0], r1 |
| michael@0 | 57 | pld [r0, r1, lsl #1] |
| michael@0 | 58 | vld1.8 {q1}, [r0], r1 |
| michael@0 | 59 | vst1.8 {q0}, [r2@128], r3 |
| michael@0 | 60 | vst1.8 {q1}, [r2@128], r3 |
| michael@0 | 61 | subs r5, r5, #2 |
| michael@0 | 62 | bgt copy16 |
| michael@0 | 63 | pop {r4-r5, pc} |
| michael@0 | 64 | |
| michael@0 | 65 | copy8 |
| michael@0 | 66 | pld [r0, r1, lsl #1] |
| michael@0 | 67 | vld1.8 {d0}, [r0], r1 |
| michael@0 | 68 | pld [r0, r1, lsl #1] |
| michael@0 | 69 | vld1.8 {d2}, [r0], r1 |
| michael@0 | 70 | vst1.8 {d0}, [r2@64], r3 |
| michael@0 | 71 | vst1.8 {d2}, [r2@64], r3 |
| michael@0 | 72 | subs r5, r5, #2 |
| michael@0 | 73 | bgt copy8 |
| michael@0 | 74 | pop {r4-r5, pc} |
| michael@0 | 75 | |
| michael@0 | 76 | copy4 |
| michael@0 | 77 | ldr r12, [r0], r1 |
| michael@0 | 78 | str r12, [r2], r3 |
| michael@0 | 79 | subs r5, r5, #1 |
| michael@0 | 80 | bgt copy4 |
| michael@0 | 81 | pop {r4-r5, pc} |
| michael@0 | 82 | ENDP |
| michael@0 | 83 | |
| michael@0 | 84 | END |
