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/CL/kernels/CLNonMaximaSuppression3x3Kernel.h"
25
26 #include "arm_compute/core/CL/CLHelpers.h"
27 #include "arm_compute/core/CL/CLKernelLibrary.h"
28 #include "arm_compute/core/CL/ICLTensor.h"
29 #include "arm_compute/core/CL/OpenCL.h"
30 #include "arm_compute/core/TensorInfo.h"
31 #include "arm_compute/core/Types.h"
32 #include "arm_compute/core/Validate.h"
33 #include "src/core/helpers/WindowHelpers.h"
34
35 #include <set>
36 #include <string>
37
38 using namespace arm_compute;
39
border_size() const40 BorderSize CLNonMaximaSuppression3x3Kernel::border_size() const
41 {
42 return BorderSize(1);
43 }
44
configure(const ICLTensor * input,ICLTensor * output,bool border_undefined)45 void CLNonMaximaSuppression3x3Kernel::configure(const ICLTensor *input, ICLTensor *output, bool border_undefined)
46 {
47 configure(CLKernelLibrary::get().get_compile_context(), input, output, border_undefined);
48 }
49
configure(const CLCompileContext & compile_context,const ICLTensor * input,ICLTensor * output,bool border_undefined)50 void CLNonMaximaSuppression3x3Kernel::configure(const CLCompileContext &compile_context, const ICLTensor *input, ICLTensor *output, bool border_undefined)
51 {
52 ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8, DataType::F32);
53 ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::U8, DataType::F32);
54
55 _input = input;
56 _output = output;
57
58 // Create kernel
59 std::set<std::string> build_opts = { ("-DDATA_TYPE=" + get_cl_type_from_data_type(input->info()->data_type())) };
60 _kernel = create_kernel(compile_context, "non_max_suppression", build_opts);
61
62 // Configure kernel window
63 constexpr unsigned int num_elems_processed_per_iteration = 8;
64 constexpr unsigned int num_elems_written_per_iteration = 8;
65 constexpr unsigned int num_elems_read_per_iteration = 16;
66 constexpr unsigned int num_rows_read_per_iteration = 3;
67
68 Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration), border_undefined, border_size());
69
70 AccessWindowRectangle input_access(input->info(), -border_size().left, -border_size().top, num_elems_read_per_iteration, num_rows_read_per_iteration);
71 AccessWindowHorizontal output_access(output->info(), 0, num_elems_written_per_iteration);
72
73 update_window_and_padding(win, input_access, output_access);
74
75 output_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size());
76
77 ICLKernel::configure_internal(win);
78 }
79