1 /*
2 * Copyright (c) 2019-2020 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 "ComputeAllAnchors.h"
25
26 #include "arm_compute/core/Types.h"
27 #include "arm_compute/core/utils/misc/ShapeCalculator.h"
28 #include "arm_compute/core/utils/misc/Utility.h"
29 #include "tests/validation/Helpers.h"
30
31 namespace arm_compute
32 {
33 namespace test
34 {
35 namespace validation
36 {
37 namespace reference
38 {
39 template <typename T>
compute_all_anchors(const SimpleTensor<T> & anchors,const ComputeAnchorsInfo & info)40 SimpleTensor<T> compute_all_anchors(const SimpleTensor<T> &anchors, const ComputeAnchorsInfo &info)
41 {
42 const int num_anchors = anchors.shape()[1];
43 const auto width = int(info.feat_width());
44 const auto height = int(info.feat_height());
45 const float stride = 1. / info.spatial_scale();
46
47 SimpleTensor<T> all_anchors(TensorShape(4, width * height * num_anchors), anchors.data_type());
48 const T *anchors_ptr = anchors.data();
49 T *all_anchors_ptr = all_anchors.data();
50
51 // Iterate over the input grid and anchors
52 #if defined(_OPENMP)
53 #pragma omp parallel for schedule(dynamic, 1) collapse(3)
54 #endif /* _OPENMP */
55 for(int y = 0; y < height; y++)
56 {
57 for(int x = 0; x < width; x++)
58 {
59 for(int a = 0; a < num_anchors; a++)
60 {
61 const T shift_x = T(x) * T(stride);
62 const T shift_y = T(y) * T(stride);
63 const size_t anchor_id = a + x * num_anchors + y * width * num_anchors;
64 // x1
65 all_anchors_ptr[anchor_id * 4] = anchors_ptr[4 * a] + shift_x;
66 // y1
67 all_anchors_ptr[anchor_id * 4 + 1] = anchors_ptr[4 * a + 1] + shift_y;
68 // x2
69 all_anchors_ptr[anchor_id * 4 + 2] = anchors_ptr[4 * a + 2] + shift_x;
70 // y2
71 all_anchors_ptr[anchor_id * 4 + 3] = anchors_ptr[4 * a + 3] + shift_y;
72 }
73 }
74 }
75 return all_anchors;
76 }
77 template SimpleTensor<float> compute_all_anchors(const SimpleTensor<float> &anchors, const ComputeAnchorsInfo &info);
78 template SimpleTensor<half> compute_all_anchors(const SimpleTensor<half> &anchors, const ComputeAnchorsInfo &info);
79
80 template <>
compute_all_anchors(const SimpleTensor<int16_t> & anchors,const ComputeAnchorsInfo & info)81 SimpleTensor<int16_t> compute_all_anchors(const SimpleTensor<int16_t> &anchors, const ComputeAnchorsInfo &info)
82 {
83 SimpleTensor<float> anchors_tmp = convert_from_symmetric(anchors);
84 SimpleTensor<float> all_anchors_tmp = compute_all_anchors(anchors_tmp, info);
85 SimpleTensor<int16_t> all_anchors = convert_to_symmetric<int16_t>(all_anchors_tmp, anchors.quantization_info());
86 return all_anchors;
87 }
88 } // namespace reference
89 } // namespace validation
90 } // namespace test
91 } // namespace arm_compute
92