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24 #include "arm_compute/core/CL/kernels/CLSobel7x7Kernel.h"
26 #include "arm_compute/core/CL/CLKernelLibrary.h"
27 #include "arm_compute/core/CL/ICLTensor.h"
28 #include "arm_compute/core/CL/OpenCL.h"
29 #include "arm_compute/core/Error.h"
30 #include "arm_compute/core/Helpers.h"
31 #include "arm_compute/core/Types.h"
32 #include "arm_compute/core/Validate.h"
33 #include "arm_compute/core/Window.h"
38 using namespace arm_compute;
40 CLSobel7x7HorKernel::CLSobel7x7HorKernel()
41 : _input(nullptr), _output_x(nullptr), _output_y(nullptr), _run_sobel_x(false), _run_sobel_y(false), _border_size(0)
45 BorderSize CLSobel7x7HorKernel::border_size() const
50 void CLSobel7x7HorKernel::configure(const ICLTensor *input, ICLTensor *output_x, ICLTensor *output_y, bool border_undefined)
52 ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8);
53 ARM_COMPUTE_ERROR_ON((output_x == nullptr) && (output_y == nullptr));
55 _run_sobel_x = output_x != nullptr;
56 _run_sobel_y = output_y != nullptr;
60 ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output_x, 1, DataType::S32);
65 ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output_y, 1, DataType::S32);
71 _border_size = BorderSize(border_undefined ? 0 : 3, 3);
73 // Construct kernel name
74 std::string kernel_name = "sobel_separable1x7";
77 std::set<std::string> build_opts;
81 build_opts.insert("-DGRAD_X");
86 build_opts.insert("-DGRAD_Y");
90 _kernel = static_cast<cl::Kernel>(CLKernelLibrary::get().create_kernel(kernel_name, build_opts));
92 // Configure kernel window
93 constexpr unsigned int num_elems_processed_per_iteration = 8;
94 constexpr unsigned int num_elems_read_per_iteration = 16;
95 constexpr unsigned int num_elems_written_per_iteration = 8;
97 Window win = calculate_max_window_horizontal(*input->info(), Steps(num_elems_processed_per_iteration), border_undefined, border_size());
99 AccessWindowHorizontal input_access(input->info(), -border_size().left, num_elems_read_per_iteration);
100 AccessWindowHorizontal output_x_access(output_x == nullptr ? nullptr : output_x->info(), 0, num_elems_written_per_iteration);
101 AccessWindowHorizontal output_y_access(output_y == nullptr ? nullptr : output_y->info(), 0, num_elems_written_per_iteration);
103 update_window_and_padding(win, input_access, output_x_access, output_y_access);
105 output_x_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size());
106 output_y_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size());
108 ICLKernel::configure(win);
111 void CLSobel7x7HorKernel::run(const Window &window, cl::CommandQueue &queue)
113 ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
114 ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(ICLKernel::window(), window);
116 Window slice = window.first_slice_window_2D();
119 unsigned int idx = 0;
120 add_2D_tensor_argument(idx, _input, slice);
124 add_2D_tensor_argument(idx, _output_x, slice);
129 add_2D_tensor_argument(idx, _output_y, slice);
132 enqueue(queue, *this, slice);
134 while(window.slide_window_slice_2D(slice));
137 CLSobel7x7VertKernel::CLSobel7x7VertKernel()
138 : _input_x(nullptr), _input_y(nullptr), _output_x(nullptr), _output_y(nullptr), _run_sobel_x(false), _run_sobel_y(false)
142 BorderSize CLSobel7x7VertKernel::border_size() const
144 return BorderSize(3, 0);
147 void CLSobel7x7VertKernel::configure(const ICLTensor *input_x, const ICLTensor *input_y, ICLTensor *output_x, ICLTensor *output_y, bool border_undefined)
149 ARM_COMPUTE_ERROR_ON((output_x == nullptr) && (output_y == nullptr));
151 _run_sobel_x = output_x != nullptr;
152 _run_sobel_y = output_y != nullptr;
156 ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input_x, 1, DataType::S32);
157 ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output_x, 1, DataType::S32);
162 ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input_y, 1, DataType::S32);
163 ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output_y, 1, DataType::S32);
168 _output_x = output_x;
169 _output_y = output_y;
172 std::set<std::string> build_opts;
176 build_opts.insert("-DGRAD_X");
181 build_opts.insert("-DGRAD_Y");
185 _kernel = static_cast<cl::Kernel>(CLKernelLibrary::get().create_kernel("sobel_separable7x1", build_opts));
187 const ICLTensor *input = _run_sobel_x ? _input_x : _input_y;
189 // Configure kernel window
190 constexpr unsigned int num_elems_processed_per_iteration = 8;
191 constexpr unsigned int num_elems_written_per_iteration = 8;
192 constexpr unsigned int num_elems_read_per_iteration = 8;
193 constexpr unsigned int num_rows_read_per_iteration = 7;
195 Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration), border_undefined, border_size());
197 AccessWindowRectangle input_x_access(input_x == nullptr ? nullptr : input_x->info(), 0, -border_size().top, num_elems_read_per_iteration, num_rows_read_per_iteration);
198 AccessWindowRectangle input_y_access(input_y == nullptr ? nullptr : input_y->info(), 0, -border_size().top, num_elems_read_per_iteration, num_rows_read_per_iteration);
199 AccessWindowHorizontal output_x_access(output_x == nullptr ? nullptr : output_x->info(), 0, num_elems_written_per_iteration);
200 AccessWindowHorizontal output_y_access(output_y == nullptr ? nullptr : output_y->info(), 0, num_elems_written_per_iteration);
202 update_window_and_padding(win, input_x_access, input_y_access, output_x_access, output_y_access);
204 output_x_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size());
205 output_y_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size());
207 ICLKernel::configure(win);
210 void CLSobel7x7VertKernel::run(const Window &window, cl::CommandQueue &queue)
212 ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
213 ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(ICLKernel::window(), window);
215 Window slice = window.first_slice_window_2D();
219 unsigned int idx = 0;
223 add_2D_tensor_argument(idx, _input_x, slice);
224 add_2D_tensor_argument(idx, _output_x, slice);
229 add_2D_tensor_argument(idx, _input_y, slice);
230 add_2D_tensor_argument(idx, _output_y, slice);
233 _kernel.setArg(idx++, 0 /*dummy*/);
235 enqueue(queue, *this, slice);
237 while(window.slide_window_slice_2D(slice));