Compute Library
 20.05
PriorBoxLayerNode.cpp
Go to the documentation of this file.
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  */
25 
26 #include "arm_compute/core/Utils.h"
30 
31 namespace arm_compute
32 {
33 namespace graph
34 {
36  : _info(std::move(prior_info))
37 {
38  _input_edges.resize(2, EmptyEdgeID);
39  _outputs.resize(1, NullTensorID);
40 }
41 
43 {
44  return _info;
45 }
46 
48  const PriorBoxLayerInfo &info)
49 {
50  const unsigned int layer_width = get_dimension_size(input_descriptor, DataLayoutDimension::WIDTH);
51  const unsigned int layer_height = get_dimension_size(input_descriptor, DataLayoutDimension::HEIGHT);
52  const unsigned int num_priors = info.aspect_ratios().size() * info.min_sizes().size() + info.max_sizes().size();
53 
54  TensorDescriptor output_descriptor = input_descriptor;
55  output_descriptor.shape.set(0, layer_width * layer_height * num_priors * 4);
56  output_descriptor.shape.set(1, 2);
57  output_descriptor.shape.set(2, 1);
58 
59  return output_descriptor;
60 }
61 
63 {
64  if((input_id(0) != NullTensorID) && (output_id(0) != NullTensorID))
65  {
66  Tensor *dst = output(0);
67  ARM_COMPUTE_ERROR_ON(dst == nullptr);
68  dst->desc() = configure_output(0);
69  return true;
70  }
71  return false;
72 }
73 
75 {
76  ARM_COMPUTE_UNUSED(idx);
77  ARM_COMPUTE_ERROR_ON(idx >= _outputs.size());
78 
79  const Tensor *input0 = input(0);
80  ARM_COMPUTE_ERROR_ON(input0 == nullptr);
81 
82  return compute_output_descriptor(input0->desc(), _info);
83 }
84 
86 {
88 }
89 
91 {
92  v.visit(*this);
93 }
94 } // namespace graph
95 } // namespace arm_compute
size_t get_dimension_size(const TensorDescriptor &descriptor, const DataLayoutDimension data_layout_dimension)
Get size of a tensor's given dimension depending on its layout.
Definition: Utils.cpp:123
static TensorDescriptor compute_output_descriptor(const TensorDescriptor &input_descriptor, const PriorBoxLayerInfo &info)
Computes priorbox output descriptor.
#define ARM_COMPUTE_ERROR_ON(cond)
If the condition is true then an error message is printed and an exception thrown.
Definition: Error.h:466
Copyright (c) 2017-2020 ARM Limited.
bool forward_descriptors() override
Forwards descriptor information to outputs if possible.
#define ARM_COMPUTE_UNUSED(...)
To avoid unused variables warnings.
Definition: Error.h:152
virtual void visit(INode &n)=0
Visit INode.
NodeType type() const override
Returns node's type.
Tensor * output(size_t idx) const
Returns the tensor of a given output of the node.
Definition: INode.cpp:158
TensorID input_id(size_t idx) const
Returns the tensor ID of a given input of the node.
Definition: INode.cpp:137
PriorBox layer info.
Definition: Types.h:806
NodeType
Supported nodes.
Definition: Types.h:134
constexpr EdgeID EmptyEdgeID
Definition: Types.h:75
PriorBoxLayerNode(PriorBoxLayerInfo prior_info)
Constructor.
void accept(INodeVisitor &v) override
Accepts a node visitor.
TensorID output_id(size_t idx) const
Returns the tensor ID of a given output of the node.
Definition: INode.cpp:144
TensorShape & set(size_t dimension, size_t value, bool apply_dim_correction=true)
Accessor to set the value of one of the dimensions.
Definition: TensorShape.h:78
constexpr TensorID NullTensorID
Constant NodeID specifying an equivalent of null node.
Definition: Types.h:71
Node visitor interface.
Definition: INodeVisitor.h:34
Tensor * input(size_t idx) const
Returns the tensor of a given input of the node.
Definition: INode.cpp:150
PriorBoxLayerInfo priorbox_info() const
PriorBox metadata accessor.
Tensor object.
Definition: Tensor.h:41
TensorDescriptor configure_output(size_t idx) const override
Calculates output configuration.