diff options
Diffstat (limited to 'third_party/dav1d/src/arm/32/refmvs.S')
| -rw-r--r-- | third_party/dav1d/src/arm/32/refmvs.S | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/third_party/dav1d/src/arm/32/refmvs.S b/third_party/dav1d/src/arm/32/refmvs.S new file mode 100644 index 0000000000..e16c5448d0 --- /dev/null +++ b/third_party/dav1d/src/arm/32/refmvs.S @@ -0,0 +1,97 @@ +/* + * 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 |