ref: ea54dbe2a89d3eb4edbdbbf1810180984467c6aa
dir: /src/arm/64/cdef16.S/
/*
* Copyright © 2018, VideoLAN and dav1d authors
* Copyright © 2020, 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"
#include "cdef_tmpl.S"
.macro pad_top_bot_16 s1, s2, w, stride, reg, ret
tst w6, #1 // CDEF_HAVE_LEFT
b.eq 2f
// CDEF_HAVE_LEFT
sub \s1, \s1, #4
sub \s2, \s2, #4
tst w6, #2 // CDEF_HAVE_RIGHT
b.eq 1f
// CDEF_HAVE_LEFT+CDEF_HAVE_RIGHT
ldr \reg\()0, [\s1]
ldr d1, [\s1, #2*\w]
ldr \reg\()2, [\s2]
ldr d3, [\s2, #2*\w]
str \reg\()0, [x0]
str d1, [x0, #2*\w]
add x0, x0, #2*\stride
str \reg\()2, [x0]
str d3, [x0, #2*\w]
.if \ret
ret
.else
add x0, x0, #2*\stride
b 3f
.endif
1:
// CDEF_HAVE_LEFT+!CDEF_HAVE_RIGHT
ldr \reg\()0, [\s1]
ldr s1, [\s1, #2*\w]
ldr \reg\()2, [\s2]
ldr s3, [\s2, #2*\w]
str \reg\()0, [x0]
str s1, [x0, #2*\w]
str s31, [x0, #2*\w+4]
add x0, x0, #2*\stride
str \reg\()2, [x0]
str s3, [x0, #2*\w]
str s31, [x0, #2*\w+4]
.if \ret
ret
.else
add x0, x0, #2*\stride
b 3f
.endif
2:
// !CDEF_HAVE_LEFT
tst w6, #2 // CDEF_HAVE_RIGHT
b.eq 1f
// !CDEF_HAVE_LEFT+CDEF_HAVE_RIGHT
ldr \reg\()0, [\s1]
ldr s1, [\s1, #2*\w]
ldr \reg\()2, [\s2]
ldr s3, [\s2, #2*\w]
str s31, [x0]
stur \reg\()0, [x0, #4]
str s1, [x0, #4+2*\w]
add x0, x0, #2*\stride
str s31, [x0]
stur \reg\()2, [x0, #4]
str s3, [x0, #4+2*\w]
.if \ret
ret
.else
add x0, x0, #2*\stride
b 3f
.endif
1:
// !CDEF_HAVE_LEFT+!CDEF_HAVE_RIGHT
ldr \reg\()0, [\s1]
ldr \reg\()1, [\s2]
str s31, [x0]
stur \reg\()0, [x0, #4]
str s31, [x0, #4+2*\w]
add x0, x0, #2*\stride
str s31, [x0]
stur \reg\()1, [x0, #4]
str s31, [x0, #4+2*\w]
.if \ret
ret
.else
add x0, x0, #2*\stride
.endif
3:
.endm
.macro load_n_incr_16 dst, src, incr, w
.if \w == 4
ld1 {\dst\().4h}, [\src], \incr
.else
ld1 {\dst\().8h}, [\src], \incr
.endif
.endm
// void dav1d_cdef_paddingX_16bpc_neon(uint16_t *tmp, const pixel *src,
// ptrdiff_t src_stride, const pixel (*left)[2],
// const pixel *const top, int h,
// enum CdefEdgeFlags edges);
.macro padding_func_16 w, stride, reg
function cdef_padding\w\()_16bpc_neon, export=1
movi v30.8h, #0x80, lsl #8
mov v31.16b, v30.16b
sub x0, x0, #2*(2*\stride+2)
tst w6, #4 // CDEF_HAVE_TOP
b.ne 1f
// !CDEF_HAVE_TOP
st1 {v30.8h, v31.8h}, [x0], #32
.if \w == 8
st1 {v30.8h, v31.8h}, [x0], #32
.endif
b 3f
1:
// CDEF_HAVE_TOP
add x9, x4, x2
pad_top_bot_16 x4, x9, \w, \stride, \reg, 0
// Middle section
3:
tst w6, #1 // CDEF_HAVE_LEFT
b.eq 2f
// CDEF_HAVE_LEFT
tst w6, #2 // CDEF_HAVE_RIGHT
b.eq 1f
// CDEF_HAVE_LEFT+CDEF_HAVE_RIGHT
0:
ld1 {v0.s}[0], [x3], #4
ldr s2, [x1, #2*\w]
load_n_incr_16 v1, x1, x2, \w
subs w5, w5, #1
str s0, [x0]
stur \reg\()1, [x0, #4]
str s2, [x0, #4+2*\w]
add x0, x0, #2*\stride
b.gt 0b
b 3f
1:
// CDEF_HAVE_LEFT+!CDEF_HAVE_RIGHT
ld1 {v0.s}[0], [x3], #4
load_n_incr_16 v1, x1, x2, \w
subs w5, w5, #1
str s0, [x0]
stur \reg\()1, [x0, #4]
str s31, [x0, #4+2*\w]
add x0, x0, #2*\stride
b.gt 1b
b 3f
2:
tst w6, #2 // CDEF_HAVE_RIGHT
b.eq 1f
// !CDEF_HAVE_LEFT+CDEF_HAVE_RIGHT
0:
ldr s1, [x1, #2*\w]
load_n_incr_16 v0, x1, x2, \w
subs w5, w5, #1
str s31, [x0]
stur \reg\()0, [x0, #4]
str s1, [x0, #4+2*\w]
add x0, x0, #2*\stride
b.gt 0b
b 3f
1:
// !CDEF_HAVE_LEFT+!CDEF_HAVE_RIGHT
load_n_incr_16 v0, x1, x2, \w
subs w5, w5, #1
str s31, [x0]
stur \reg\()0, [x0, #4]
str s31, [x0, #4+2*\w]
add x0, x0, #2*\stride
b.gt 1b
3:
tst w6, #8 // CDEF_HAVE_BOTTOM
b.ne 1f
// !CDEF_HAVE_BOTTOM
st1 {v30.8h, v31.8h}, [x0], #32
.if \w == 8
st1 {v30.8h, v31.8h}, [x0], #32
.endif
ret
1:
// CDEF_HAVE_BOTTOM
add x9, x1, x2
pad_top_bot_16 x1, x9, \w, \stride, \reg, 1
endfunc
.endm
padding_func_16 8, 16, q
padding_func_16 4, 8, d
tables
filter 8, 16
filter 4, 16
find_dir 16