1 /*
2 * Copyright (c) 2019 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 "arm_compute/graph/nodes/DetectionPostProcessLayerNode.h"
25
26 #include "arm_compute/core/Utils.h"
27 #include "arm_compute/graph/Graph.h"
28 #include "arm_compute/graph/INodeVisitor.h"
29 #include "arm_compute/graph/Utils.h"
30
31 namespace arm_compute
32 {
33 namespace graph
34 {
DetectionPostProcessLayerNode(DetectionPostProcessLayerInfo detection_info)35 DetectionPostProcessLayerNode::DetectionPostProcessLayerNode(DetectionPostProcessLayerInfo detection_info)
36 : _info(detection_info)
37 {
38 _input_edges.resize(3, EmptyEdgeID);
39 _outputs.resize(4, NullTensorID);
40 }
41
detection_post_process_info() const42 DetectionPostProcessLayerInfo DetectionPostProcessLayerNode::detection_post_process_info() const
43 {
44 return _info;
45 }
46
forward_descriptors()47 bool DetectionPostProcessLayerNode::forward_descriptors()
48 {
49 if((input_id(0) != NullTensorID) && (input_id(1) != NullTensorID) && (input_id(2) != NullTensorID) && (output_id(0) != NullTensorID) && (output_id(1) != NullTensorID)
50 && (output_id(2) != NullTensorID) && (output_id(3) != NullTensorID))
51 {
52 for(unsigned int i = 0; i < 4; ++i)
53 {
54 Tensor *dst = output(i);
55 ARM_COMPUTE_ERROR_ON(dst == nullptr);
56 dst->desc() = configure_output(i);
57 }
58 return true;
59 }
60 return false;
61 }
62
configure_output(size_t idx) const63 TensorDescriptor DetectionPostProcessLayerNode::configure_output(size_t idx) const
64 {
65 ARM_COMPUTE_UNUSED(idx);
66 ARM_COMPUTE_ERROR_ON(idx >= _outputs.size());
67
68 TensorDescriptor output_desc;
69 const unsigned int num_detected_box = _info.max_detections() * _info.max_classes_per_detection();
70
71 switch(idx)
72 {
73 case 0:
74 // Configure boxes output
75 output_desc.shape = TensorShape(kNumCoordBox, num_detected_box, kBatchSize);
76 break;
77 case 1:
78 case 2:
79 // Configure classes or scores output
80 output_desc.shape = TensorShape(num_detected_box, kBatchSize);
81 break;
82 case 3:
83 // Configure num_detection
84 output_desc.shape = TensorShape(1);
85 break;
86 default:
87 ARM_COMPUTE_ERROR("Unsupported output index");
88 }
89 output_desc.data_type = DataType::F32;
90
91 return output_desc;
92 }
93
type() const94 NodeType DetectionPostProcessLayerNode::type() const
95 {
96 return NodeType::DetectionPostProcessLayer;
97 }
98
accept(INodeVisitor & v)99 void DetectionPostProcessLayerNode::accept(INodeVisitor &v)
100 {
101 v.visit(*this);
102 }
103 } // namespace graph
104 } // namespace arm_compute