1 /*
2 * Copyright (c) 2016-2020 Arm Limited.
3 *
4 * SPDX-License-Identifier: MIT
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24 #include "src/core/NEON/kernels/NEFillArrayKernel.h"
25
26 #include "arm_compute/core/Coordinates.h"
27 #include "arm_compute/core/Error.h"
28 #include "arm_compute/core/Helpers.h"
29 #include "arm_compute/core/IAccessWindow.h"
30 #include "arm_compute/core/Validate.h"
31 #include "src/core/helpers/WindowHelpers.h"
32
33 using namespace arm_compute;
34
NEFillArrayKernel()35 NEFillArrayKernel::NEFillArrayKernel()
36 : _input(nullptr), _output(nullptr), _threshold(0)
37 {
38 }
39
configure(const IImage * input,uint8_t threshold,IKeyPointArray * output)40 void NEFillArrayKernel::configure(const IImage *input, uint8_t threshold, IKeyPointArray *output)
41 {
42 ARM_COMPUTE_ERROR_ON_TENSOR_NOT_2D(input);
43 ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8);
44 ARM_COMPUTE_ERROR_ON(nullptr == output);
45
46 _input = input;
47 _output = output;
48 _threshold = threshold;
49
50 constexpr unsigned int num_elems_processed_per_iteration = 1;
51
52 // Configure kernel window
53 Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration));
54 INEKernel::configure(win);
55 }
56
is_parallelisable() const57 bool NEFillArrayKernel::is_parallelisable() const
58 {
59 return false;
60 }
61
run(const Window & window,const ThreadInfo & info)62 void NEFillArrayKernel::run(const Window &window, const ThreadInfo &info)
63 {
64 ARM_COMPUTE_UNUSED(info);
65 ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
66 ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(INEKernel::window(), window);
67
68 Iterator input(_input, window);
69
70 execute_window_loop(window, [&](const Coordinates & id)
71 {
72 const uint8_t value = *input.ptr();
73
74 if(value >= _threshold)
75 {
76 KeyPoint p;
77 p.x = id.x();
78 p.y = id.y();
79 p.strength = value;
80 p.tracking_status = 1;
81 p.scale = 0.f;
82 p.orientation = 0.f;
83 p.error = 0.f;
84
85 if(!_output->push_back(p))
86 {
87 return; //Overflowed: stop trying to add more points
88 }
89 }
90 },
91 input);
92 }
93