diff options
Diffstat (limited to 'src/core/CL/kernels/CLHarrisCornersKernel.cpp')
| -rw-r--r-- | src/core/CL/kernels/CLHarrisCornersKernel.cpp | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/core/CL/kernels/CLHarrisCornersKernel.cpp b/src/core/CL/kernels/CLHarrisCornersKernel.cpp new file mode 100644 index 0000000000..9fc34a7760 --- /dev/null +++ b/src/core/CL/kernels/CLHarrisCornersKernel.cpp @@ -0,0 +1,126 @@ +/* + * Copyright (c) 2016, 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/CL/kernels/CLHarrisCornersKernel.h" + +#include "arm_compute/core/CL/CLHelpers.h" +#include "arm_compute/core/CL/CLKernelLibrary.h" +#include "arm_compute/core/CL/ICLTensor.h" +#include "arm_compute/core/CL/OpenCL.h" +#include "arm_compute/core/Error.h" +#include "arm_compute/core/Helpers.h" +#include "arm_compute/core/TensorInfo.h" +#include "arm_compute/core/Types.h" +#include "arm_compute/core/Validate.h" +#include "arm_compute/core/Window.h" + +#include <set> +#include <sstream> +#include <string> + +using namespace arm_compute; + +CLHarrisScoreKernel::CLHarrisScoreKernel() + : _input1(nullptr), _input2(nullptr), _output(nullptr), _sensitivity(), _strength_thresh(), _norm_factor(), _border_size(0) +{ +} + +BorderSize CLHarrisScoreKernel::border_size() const +{ + return _border_size; +} + +void CLHarrisScoreKernel::configure(const ICLImage *input1, const ICLImage *input2, ICLImage *output, + int32_t block_size, float norm_factor, float strength_thresh, float sensitivity, + bool border_undefined) +{ + ARM_COMPUTE_ERROR_ON_TENSOR_NOT_2D(input1); + ARM_COMPUTE_ERROR_ON_TENSOR_NOT_2D(input2); + ARM_COMPUTE_ERROR_ON_TENSOR_NOT_2D(output); + ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input1, 1, DataType::S16, DataType::S32); + ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input2, 1, DataType::S16, DataType::S32); + ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::F32); + ARM_COMPUTE_ERROR_ON_MISMATCHING_DATA_TYPES(input1, input2); + ARM_COMPUTE_ERROR_ON(!(block_size == 3 || block_size == 5 || block_size == 7)); + ARM_COMPUTE_ERROR_ON(0.0f == norm_factor); + + _input1 = input1; + _input2 = input2; + _output = output; + _sensitivity = sensitivity; + _strength_thresh = strength_thresh; + _norm_factor = norm_factor; + _border_size = BorderSize(block_size / 2); + + // Select kernel + std::stringstream harris_score_kernel_name; + harris_score_kernel_name << "harris_score_" << block_size << "x" << block_size; + + // Create build options + std::set<std::string> build_opts = { ("-DDATA_TYPE=" + get_cl_type_from_data_type(input1->info()->data_type())) }; + + // Create kernel + _kernel = static_cast<cl::Kernel>(CLKernelLibrary::get().create_kernel(harris_score_kernel_name.str(), build_opts)); + + // Set static kernel arguments + unsigned int idx = 3 * num_arguments_per_2D_tensor(); //Skip the input and output parameters + _kernel.setArg(idx++, sensitivity); + _kernel.setArg(idx++, strength_thresh); + _kernel.setArg(idx++, norm_factor); + + // Configure kernel window + constexpr unsigned int num_elems_processed_per_iteration = 4; + constexpr unsigned int num_elems_written_per_iteration = 4; + constexpr unsigned int num_elems_read_per_iteration = 8; + constexpr unsigned int num_rows_read_per_iteration = 3; + + Window win = calculate_max_window(*_input1->info(), Steps(num_elems_processed_per_iteration), border_undefined, border_size()); + + AccessWindowRectangle input1_access(input1->info(), -border_size().left, -border_size().top, num_elems_read_per_iteration, num_rows_read_per_iteration); + AccessWindowRectangle input2_access(input2->info(), -border_size().left, -border_size().top, num_elems_read_per_iteration, num_rows_read_per_iteration); + AccessWindowHorizontal output_access(output->info(), 0, num_elems_written_per_iteration); + + update_window_and_padding(win, input1_access, input2_access, output_access); + + ValidRegion valid_region = intersect_valid_regions(input1->info()->valid_region(), input2->info()->valid_region()); + output_access.set_valid_region(win, valid_region, border_undefined, border_size()); + + ICLKernel::configure(win); +} + +void CLHarrisScoreKernel::run(const Window &window, cl::CommandQueue &queue) +{ + ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); + ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(ICLKernel::window(), window); + + Window slice = window.first_slice_window_2D(); + do + { + unsigned int idx = 0; + add_2D_tensor_argument(idx, _input1, slice); + add_2D_tensor_argument(idx, _input2, slice); + add_2D_tensor_argument(idx, _output, slice); + enqueue(queue, *this, slice); + } + while(window.slide_window_slice_2D(slice)); +} |