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| 1 ; | |
| 2 ; Copyright (c) 2013 The WebM project authors. All Rights Reserved. | |
| 3 ; | |
| 4 ; Use of this source code is governed by a BSD-style license | |
| 5 ; that can be found in the LICENSE file in the root of the source | |
| 6 ; tree. An additional intellectual property rights grant can be found | |
| 7 ; in the file PATENTS. All contributing project authors may | |
| 8 ; be found in the AUTHORS file in the root of the source tree. | |
| 9 ; | |
| 10 | |
| 11 EXPORT |vp9_convolve_avg_neon| | |
| 12 ARM | |
| 13 REQUIRE8 | |
| 14 PRESERVE8 | |
| 15 | |
| 16 AREA ||.text||, CODE, READONLY, ALIGN=2 | |
| 17 | |
| 18 |vp9_convolve_avg_neon| PROC | |
| 19 push {r4-r6, lr} | |
| 20 ldrd r4, r5, [sp, #32] | |
| 21 mov r6, r2 | |
| 22 | |
| 23 cmp r4, #32 | |
| 24 bgt avg64 | |
| 25 beq avg32 | |
| 26 cmp r4, #8 | |
| 27 bgt avg16 | |
| 28 beq avg8 | |
| 29 b avg4 | |
| 30 | |
| 31 avg64 | |
| 32 sub lr, r1, #32 | |
| 33 sub r4, r3, #32 | |
| 34 avg64_h | |
| 35 pld [r0, r1, lsl #1] | |
| 36 vld1.8 {q0-q1}, [r0]! | |
| 37 vld1.8 {q2-q3}, [r0], lr | |
| 38 pld [r2, r3] | |
| 39 vld1.8 {q8-q9}, [r6@128]! | |
| 40 vld1.8 {q10-q11}, [r6@128], r4 | |
| 41 vrhadd.u8 q0, q0, q8 | |
| 42 vrhadd.u8 q1, q1, q9 | |
| 43 vrhadd.u8 q2, q2, q10 | |
| 44 vrhadd.u8 q3, q3, q11 | |
| 45 vst1.8 {q0-q1}, [r2@128]! | |
| 46 vst1.8 {q2-q3}, [r2@128], r4 | |
| 47 subs r5, r5, #1 | |
| 48 bgt avg64_h | |
| 49 pop {r4-r6, pc} | |
| 50 | |
| 51 avg32 | |
| 52 vld1.8 {q0-q1}, [r0], r1 | |
| 53 vld1.8 {q2-q3}, [r0], r1 | |
| 54 vld1.8 {q8-q9}, [r6@128], r3 | |
| 55 vld1.8 {q10-q11}, [r6@128], r3 | |
| 56 pld [r0] | |
| 57 vrhadd.u8 q0, q0, q8 | |
| 58 pld [r0, r1] | |
| 59 vrhadd.u8 q1, q1, q9 | |
| 60 pld [r6] | |
| 61 vrhadd.u8 q2, q2, q10 | |
| 62 pld [r6, r3] | |
| 63 vrhadd.u8 q3, q3, q11 | |
| 64 vst1.8 {q0-q1}, [r2@128], r3 | |
| 65 vst1.8 {q2-q3}, [r2@128], r3 | |
| 66 subs r5, r5, #2 | |
| 67 bgt avg32 | |
| 68 pop {r4-r6, pc} | |
| 69 | |
| 70 avg16 | |
| 71 vld1.8 {q0}, [r0], r1 | |
| 72 vld1.8 {q1}, [r0], r1 | |
| 73 vld1.8 {q2}, [r6@128], r3 | |
| 74 vld1.8 {q3}, [r6@128], r3 | |
| 75 pld [r0] | |
| 76 pld [r0, r1] | |
| 77 vrhadd.u8 q0, q0, q2 | |
| 78 pld [r6] | |
| 79 pld [r6, r3] | |
| 80 vrhadd.u8 q1, q1, q3 | |
| 81 vst1.8 {q0}, [r2@128], r3 | |
| 82 vst1.8 {q1}, [r2@128], r3 | |
| 83 subs r5, r5, #2 | |
| 84 bgt avg16 | |
| 85 pop {r4-r6, pc} | |
| 86 | |
| 87 avg8 | |
| 88 vld1.8 {d0}, [r0], r1 | |
| 89 vld1.8 {d1}, [r0], r1 | |
| 90 vld1.8 {d2}, [r6@64], r3 | |
| 91 vld1.8 {d3}, [r6@64], r3 | |
| 92 pld [r0] | |
| 93 pld [r0, r1] | |
| 94 vrhadd.u8 q0, q0, q1 | |
| 95 pld [r6] | |
| 96 pld [r6, r3] | |
| 97 vst1.8 {d0}, [r2@64], r3 | |
| 98 vst1.8 {d1}, [r2@64], r3 | |
| 99 subs r5, r5, #2 | |
| 100 bgt avg8 | |
| 101 pop {r4-r6, pc} | |
| 102 | |
| 103 avg4 | |
| 104 vld1.32 {d0[0]}, [r0], r1 | |
| 105 vld1.32 {d0[1]}, [r0], r1 | |
| 106 vld1.32 {d2[0]}, [r6@32], r3 | |
| 107 vld1.32 {d2[1]}, [r6@32], r3 | |
| 108 vrhadd.u8 d0, d0, d2 | |
| 109 vst1.32 {d0[0]}, [r2@32], r3 | |
| 110 vst1.32 {d0[1]}, [r2@32], r3 | |
| 111 subs r5, r5, #2 | |
| 112 bgt avg4 | |
| 113 pop {r4-r6, pc} | |
| 114 ENDP | |
| 115 | |
| 116 END | |
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Chromium Code Reviews
Issue 812033011:
libvpx: Pull from upstream (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/libvpx/