diff options
Diffstat (limited to 'third_party/dav1d/src/arm/64/refmvs.S')
| -rw-r--r-- | third_party/dav1d/src/arm/64/refmvs.S | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/third_party/dav1d/src/arm/64/refmvs.S b/third_party/dav1d/src/arm/64/refmvs.S new file mode 100644 index 0000000000..becd4c08f6 --- /dev/null +++ b/third_party/dav1d/src/arm/64/refmvs.S @@ -0,0 +1,91 @@ +/* + * 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 + ld1 {v3.16b}, [x1] + clz w3, w3 + adr x5, L(splat_tbl) + sub w3, w3, #26 + ext v2.16b, v3.16b, v3.16b, #12 + ldrh w3, [x5, w3, uxtw #1] + add w2, w2, w2, lsl #1 + ext v0.16b, v2.16b, v3.16b, #4 + sub x3, x5, w3, uxtw + ext v1.16b, v2.16b, v3.16b, #8 + lsl w2, w2, #2 + ext v2.16b, v2.16b, v3.16b, #12 +1: + ldr x1, [x0], #8 + subs w4, w4, #1 + add x1, x1, x2 + br x3 + +10: + AARCH64_VALID_JUMP_TARGET + st1 {v0.8b}, [x1] + str s2, [x1, #8] + b.gt 1b + ret +20: + AARCH64_VALID_JUMP_TARGET + st1 {v0.16b}, [x1] + str d1, [x1, #16] + b.gt 1b + ret +320: + AARCH64_VALID_JUMP_TARGET + st1 {v0.16b, v1.16b, v2.16b}, [x1], #48 + st1 {v0.16b, v1.16b, v2.16b}, [x1], #48 + st1 {v0.16b, v1.16b, v2.16b}, [x1], #48 + st1 {v0.16b, v1.16b, v2.16b}, [x1], #48 +160: + AARCH64_VALID_JUMP_TARGET + st1 {v0.16b, v1.16b, v2.16b}, [x1], #48 + st1 {v0.16b, v1.16b, v2.16b}, [x1], #48 +80: + AARCH64_VALID_JUMP_TARGET + st1 {v0.16b, v1.16b, v2.16b}, [x1], #48 +40: + AARCH64_VALID_JUMP_TARGET + st1 {v0.16b, v1.16b, v2.16b}, [x1] + b.gt 1b + ret + +L(splat_tbl): + .hword L(splat_tbl) - 320b + .hword L(splat_tbl) - 160b + .hword L(splat_tbl) - 80b + .hword L(splat_tbl) - 40b + .hword L(splat_tbl) - 20b + .hword L(splat_tbl) - 10b +endfunc |