| ; |
| ; Copyright (c) 2013 The WebM project authors. All Rights Reserved. |
| ; |
| ; Use of this source code is governed by a BSD-style license |
| ; that can be found in the LICENSE file in the root of the source |
| ; tree. An additional intellectual property rights grant can be found |
| ; in the file PATENTS. All contributing project authors may |
| ; be found in the AUTHORS file in the root of the source tree. |
| ; |
| |
| EXPORT |vpx_convolve_copy_neon| |
| ARM |
| REQUIRE8 |
| PRESERVE8 |
| |
| AREA ||.text||, CODE, READONLY, ALIGN=2 |
| |
| |vpx_convolve_copy_neon| PROC |
| push {r4-r5, lr} |
| ldrd r4, r5, [sp, #28] |
| |
| cmp r4, #32 |
| bgt copy64 |
| beq copy32 |
| cmp r4, #8 |
| bgt copy16 |
| beq copy8 |
| b copy4 |
| |
| copy64 |
| sub lr, r1, #32 |
| sub r3, r3, #32 |
| copy64_h |
| pld [r0, r1, lsl #1] |
| vld1.8 {q0-q1}, [r0]! |
| vld1.8 {q2-q3}, [r0], lr |
| vst1.8 {q0-q1}, [r2@128]! |
| vst1.8 {q2-q3}, [r2@128], r3 |
| subs r5, r5, #1 |
| bgt copy64_h |
| pop {r4-r5, pc} |
| |
| copy32 |
| pld [r0, r1, lsl #1] |
| vld1.8 {q0-q1}, [r0], r1 |
| pld [r0, r1, lsl #1] |
| vld1.8 {q2-q3}, [r0], r1 |
| vst1.8 {q0-q1}, [r2@128], r3 |
| vst1.8 {q2-q3}, [r2@128], r3 |
| subs r5, r5, #2 |
| bgt copy32 |
| pop {r4-r5, pc} |
| |
| copy16 |
| pld [r0, r1, lsl #1] |
| vld1.8 {q0}, [r0], r1 |
| pld [r0, r1, lsl #1] |
| vld1.8 {q1}, [r0], r1 |
| vst1.8 {q0}, [r2@128], r3 |
| vst1.8 {q1}, [r2@128], r3 |
| subs r5, r5, #2 |
| bgt copy16 |
| pop {r4-r5, pc} |
| |
| copy8 |
| pld [r0, r1, lsl #1] |
| vld1.8 {d0}, [r0], r1 |
| pld [r0, r1, lsl #1] |
| vld1.8 {d2}, [r0], r1 |
| vst1.8 {d0}, [r2@64], r3 |
| vst1.8 {d2}, [r2@64], r3 |
| subs r5, r5, #2 |
| bgt copy8 |
| pop {r4-r5, pc} |
| |
| copy4 |
| ldr r12, [r0], r1 |
| str r12, [r2], r3 |
| subs r5, r5, #1 |
| bgt copy4 |
| pop {r4-r5, pc} |
| ENDP |
| |
| END |
