1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/*
* Copyright (c) 2023 Arm Limited.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "depthwise_common.hpp"
#include "utils.hpp"
using arm_gemm::iceildiv;
namespace arm_conv {
namespace depthwise {
std::tuple<size_t, size_t, size_t, size_t, size_t>
get_reduced_view_for_dilation(size_t out_size, size_t in_size, const size_t d,
const size_t dilation_factor,
const size_t kernel_size, const size_t stride,
const size_t orig_pad_before) {
// Get the valid output range
out_size = iceildiv(out_size - d, dilation_factor);
// Compute the start offset and the amount of padding which applies to this
// portion of the work.
size_t start_pos = d * stride, pad_before = 0;
if (start_pos < orig_pad_before) {
pad_before = iceildiv(orig_pad_before - start_pos, dilation_factor);
}
start_pos += pad_before * dilation_factor - orig_pad_before;
// Hence compute the valid input range
in_size = start_pos < in_size
? iceildiv(in_size - start_pos, dilation_factor)
: 0;
// Finally, compute the "after" padding
const size_t reqd_input = (out_size - 1) * stride + kernel_size;
size_t pad_after = 0;
if (reqd_input > (pad_before + in_size)) {
pad_after = reqd_input - (pad_before + in_size);
}
return std::make_tuple(out_size, in_size, start_pos, pad_before, pad_after);
}
} // namespace depthwise
} // namespace arm_conv
|
