1 /*
2 * Copyright (c) 2018 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/DetectionOutputLayerNode.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 {
DetectionOutputLayerNode(DetectionOutputLayerInfo detection_info)35 DetectionOutputLayerNode::DetectionOutputLayerNode(DetectionOutputLayerInfo detection_info)
36 : _info(detection_info)
37 {
38 _input_edges.resize(3, EmptyEdgeID);
39 _outputs.resize(1, NullTensorID);
40 }
41
detection_output_info() const42 DetectionOutputLayerInfo DetectionOutputLayerNode::detection_output_info() const
43 {
44 return _info;
45 }
46
compute_output_descriptor(const TensorDescriptor & input_descriptor,const DetectionOutputLayerInfo & info)47 TensorDescriptor DetectionOutputLayerNode::compute_output_descriptor(const TensorDescriptor &input_descriptor,
48 const DetectionOutputLayerInfo &info)
49 {
50 const unsigned int max_size = info.keep_top_k() * ((input_descriptor.shape.num_dimensions() > 1) ? input_descriptor.shape[1] : 1);
51
52 TensorDescriptor output_descriptor = input_descriptor;
53 output_descriptor.shape.set(0, detection_size);
54 output_descriptor.shape.set(1, max_size);
55
56 return output_descriptor;
57 }
58
forward_descriptors()59 bool DetectionOutputLayerNode::forward_descriptors()
60 {
61 if((input_id(0) != NullTensorID) && (input_id(1) != NullTensorID) && (input_id(2) != NullTensorID) && (output_id(0) != NullTensorID))
62 {
63 Tensor *dst = output(0);
64 ARM_COMPUTE_ERROR_ON(dst == nullptr);
65 dst->desc() = configure_output(0);
66 return true;
67 }
68 return false;
69 }
70
configure_output(size_t idx) const71 TensorDescriptor DetectionOutputLayerNode::configure_output(size_t idx) const
72 {
73 ARM_COMPUTE_UNUSED(idx);
74 ARM_COMPUTE_ERROR_ON(idx >= _outputs.size());
75
76 const Tensor *input0 = input(0);
77 ARM_COMPUTE_ERROR_ON(input0 == nullptr);
78
79 return compute_output_descriptor(input0->desc(), _info);
80 }
81
type() const82 NodeType DetectionOutputLayerNode::type() const
83 {
84 return NodeType::DetectionOutputLayer;
85 }
86
accept(INodeVisitor & v)87 void DetectionOutputLayerNode::accept(INodeVisitor &v)
88 {
89 v.visit(*this);
90 }
91 } // namespace graph
92 } // namespace arm_compute
93