Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2016, 2017 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 "arm_compute/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 | |
| 32 | using namespace arm_compute; |
| 33 | |
| 34 | NEFillArrayKernel::NEFillArrayKernel() |
| 35 | : _input(nullptr), _output(nullptr), _threshold(0) |
| 36 | { |
| 37 | } |
| 38 | |
| 39 | void NEFillArrayKernel::configure(const IImage *input, uint8_t threshold, IKeyPointArray *output) |
| 40 | { |
| 41 | ARM_COMPUTE_ERROR_ON_TENSOR_NOT_2D(input); |
| 42 | ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8); |
| 43 | ARM_COMPUTE_ERROR_ON(nullptr == output); |
| 44 | |
| 45 | _input = input; |
| 46 | _output = output; |
| 47 | _threshold = threshold; |
| 48 | |
| 49 | constexpr unsigned int num_elems_processed_per_iteration = 1; |
| 50 | constexpr unsigned int num_elems_read_per_iteration = 1; |
| 51 | |
| 52 | // Configure kernel window |
| 53 | Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration)); |
| 54 | |
| 55 | update_window_and_padding(win, AccessWindowHorizontal(input->info(), 0, num_elems_read_per_iteration)); |
| 56 | |
| 57 | INEKernel::configure(win); |
| 58 | } |
| 59 | |
| 60 | bool NEFillArrayKernel::is_parallelisable() const |
| 61 | { |
| 62 | return false; |
| 63 | } |
| 64 | |
| 65 | void NEFillArrayKernel::run(const Window &window) |
| 66 | { |
| 67 | ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); |
| 68 | ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(INEKernel::window(), window); |
| 69 | |
| 70 | Iterator input(_input, window); |
| 71 | |
| 72 | execute_window_loop(window, [&](const Coordinates & id) |
| 73 | { |
| 74 | const uint8_t value = *input.ptr(); |
| 75 | |
| 76 | if(value >= _threshold) |
| 77 | { |
| 78 | KeyPoint p; |
| 79 | p.x = id.x(); |
| 80 | p.y = id.y(); |
| 81 | p.strength = value; |
| 82 | p.tracking_status = 1; |
| 83 | |
| 84 | if(!_output->push_back(p)) |
| 85 | { |
| 86 | return; //Overflowed: stop trying to add more points |
| 87 | } |
| 88 | } |
| 89 | }, |
| 90 | input); |
| 91 | } |