From 6ff3b19ee6120edf015fad8caab2991faa3070af Mon Sep 17 00:00:00 2001 From: Anthony Barbier Date: Mon, 4 Sep 2017 18:44:23 +0100 Subject: COMPMID-344 Updated doxygen Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae --- src/core/CPP/kernels/CPPCornerCandidatesKernel.cpp | 110 +++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 src/core/CPP/kernels/CPPCornerCandidatesKernel.cpp (limited to 'src/core/CPP/kernels/CPPCornerCandidatesKernel.cpp') diff --git a/src/core/CPP/kernels/CPPCornerCandidatesKernel.cpp b/src/core/CPP/kernels/CPPCornerCandidatesKernel.cpp new file mode 100644 index 0000000000..884da2861b --- /dev/null +++ b/src/core/CPP/kernels/CPPCornerCandidatesKernel.cpp @@ -0,0 +1,110 @@ +/* + * Copyright (c) 2017 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 "arm_compute/core/CPP/kernels/CPPCornerCandidatesKernel.h" + +#include "arm_compute/core/Coordinates.h" +#include "arm_compute/core/Error.h" +#include "arm_compute/core/Helpers.h" +#include "arm_compute/core/IAccessWindow.h" +#include "arm_compute/core/TensorInfo.h" +#include "arm_compute/core/Types.h" +#include "arm_compute/core/Utils.h" +#include "arm_compute/core/Validate.h" +#include "arm_compute/core/Window.h" + +using namespace arm_compute; + +namespace +{ +inline void check_corner(float x, float y, float strength, InternalKeypoint *output, int32_t *num_corner_candidates, std::mutex *corner_candidates_mutex) +{ + if(strength != 0.0f) + { + /* Set index and update num_corner_candidate */ + std::unique_lock lock(*corner_candidates_mutex); + + const int32_t idx = *num_corner_candidates; + + *num_corner_candidates += 1; + + lock.unlock(); + + /* Add keypoint */ + output[idx] = std::make_tuple(x, y, strength); + } +} + +inline void corner_candidates(const float *__restrict input, InternalKeypoint *__restrict output, int32_t x, int32_t y, int32_t *num_corner_candidates, std::mutex *corner_candidates_mutex) +{ + check_corner(x + 0, y, *(input + 0), output, num_corner_candidates, corner_candidates_mutex); + check_corner(x + 1, y, *(input + 1), output, num_corner_candidates, corner_candidates_mutex); + check_corner(x + 2, y, *(input + 2), output, num_corner_candidates, corner_candidates_mutex); + check_corner(x + 3, y, *(input + 3), output, num_corner_candidates, corner_candidates_mutex); +} +} // namespace + +bool keypoint_compare(const InternalKeypoint &lhs, const InternalKeypoint &rhs) +{ + return std::get<2>(lhs) > std::get<2>(rhs); +} + +CPPCornerCandidatesKernel::CPPCornerCandidatesKernel() + : _num_corner_candidates(nullptr), _corner_candidates_mutex(), _input(nullptr), _output(nullptr) +{ +} + +void CPPCornerCandidatesKernel::configure(const IImage *input, InternalKeypoint *output, int32_t *num_corner_candidates) +{ + ARM_COMPUTE_ERROR_ON_TENSOR_NOT_2D(input); + ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::F32); + ARM_COMPUTE_ERROR_ON(nullptr == output); + ARM_COMPUTE_ERROR_ON(nullptr == num_corner_candidates); + ARM_COMPUTE_ERROR_ON(*num_corner_candidates != 0); + + _input = input; + _output = output; + _num_corner_candidates = num_corner_candidates; + + const unsigned int num_elems_processed_per_iteration = 4; + + // Configure kernel window + Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration)); + + update_window_and_padding(win, AccessWindowHorizontal(input->info(), 0, num_elems_processed_per_iteration)); + + INEKernel::configure(win); +} + +void CPPCornerCandidatesKernel::run(const Window &window) +{ + ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); + ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(INEKernel::window(), window); + Iterator input(_input, window); + + execute_window_loop(window, [&](const Coordinates & id) + { + corner_candidates(reinterpret_cast(input.ptr()), &_output[0], id.x(), id.y(), _num_corner_candidates, &_corner_candidates_mutex); + }, + input); +} -- cgit v1.2.1