| /* |
| * Copyright © 2021, VideoLAN and dav1d authors |
| * Copyright © 2021, Martin Storsjo |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, this |
| * list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR |
| * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "src/arm/asm.S" |
| #include "util.S" |
| |
| // void dav1d_splat_mv_neon(refmvs_block **rr, const refmvs_block *rmv, |
| // int bx4, int bw4, int bh4) |
| |
| function splat_mv_neon, export=1 |
| push {r4, lr} |
| vld1.8 {q3}, [r1] |
| ldr r4, [sp, #8] |
| clz r3, r3 |
| adr lr, L(splat_tbl) |
| sub r3, r3, #26 |
| vext.8 q2, q3, q3, #12 |
| ldr r3, [lr, r3, lsl #2] |
| add r2, r2, r2, lsl #1 |
| vext.8 q0, q2, q3, #4 |
| add r3, lr, r3 |
| vext.8 q1, q2, q3, #8 |
| lsl r2, r2, #2 |
| vext.8 q2, q2, q3, #12 |
| vmov q3, q0 |
| 1: |
| ldr r1, [r0], #4 |
| subs r4, r4, #1 |
| add r1, r1, r2 |
| bx r3 |
| |
| .align 2 |
| L(splat_tbl): |
| .word 320f - L(splat_tbl) + CONFIG_THUMB |
| .word 160f - L(splat_tbl) + CONFIG_THUMB |
| .word 80f - L(splat_tbl) + CONFIG_THUMB |
| .word 40f - L(splat_tbl) + CONFIG_THUMB |
| .word 20f - L(splat_tbl) + CONFIG_THUMB |
| .word 10f - L(splat_tbl) + CONFIG_THUMB |
| |
| 10: |
| vst1.8 {d0}, [r1] |
| vstr s2, [r1, #8] |
| bgt 1b |
| pop {r4, pc} |
| 20: |
| vst1.8 {q0}, [r1] |
| vstr d2, [r1, #16] |
| bgt 1b |
| pop {r4, pc} |
| 40: |
| vst1.8 {q0, q1}, [r1]! |
| vst1.8 {q2}, [r1] |
| bgt 1b |
| pop {r4, pc} |
| 320: |
| vst1.8 {q0, q1}, [r1]! |
| vst1.8 {q2, q3}, [r1]! |
| vst1.8 {q1, q2}, [r1]! |
| vst1.8 {q0, q1}, [r1]! |
| vst1.8 {q2, q3}, [r1]! |
| vst1.8 {q1, q2}, [r1]! |
| 160: |
| vst1.8 {q0, q1}, [r1]! |
| vst1.8 {q2, q3}, [r1]! |
| vst1.8 {q1, q2}, [r1]! |
| 80: |
| vst1.8 {q0, q1}, [r1]! |
| vst1.8 {q2, q3}, [r1]! |
| vst1.8 {q1, q2}, [r1] |
| bgt 1b |
| pop {r4, pc} |
| endfunc |
