Compute Library
 20.05
PoolingLayerNode.cpp
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2  * Copyright (c) 2018-2020 ARM Limited.
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25 
26 #include "arm_compute/core/Utils.h"
30 
31 namespace arm_compute
32 {
33 namespace graph
34 {
36  : _info(std::move(pool_info))
37 {
38  _input_edges.resize(1, EmptyEdgeID);
39  _outputs.resize(1, NullTensorID);
40 }
41 
43 {
44  return _info;
45 }
46 
49 {
50  unsigned int pooled_width = 0;
51  unsigned int pooled_height = 0;
52 
53  const unsigned int input_width = get_dimension_size(input_descriptor, DataLayoutDimension::WIDTH);
54  const unsigned int input_height = get_dimension_size(input_descriptor, DataLayoutDimension::HEIGHT);
55  const unsigned int pool_size_x = info.is_global_pooling ? input_width : info.pool_size.width;
56  const unsigned int pool_size_y = info.is_global_pooling ? input_height : info.pool_size.height;
57 
58  std::tie(pooled_width, pooled_height) = scaled_dimensions(input_width, input_height, pool_size_x, pool_size_y, info.pad_stride_info);
59 
60  const DataLayout data_layout = input_descriptor.layout;
61  TensorDescriptor output_descriptor = input_descriptor;
62  output_descriptor.shape.set(get_dimension_idx(data_layout, DataLayoutDimension::WIDTH), pooled_width);
63  output_descriptor.shape.set(get_dimension_idx(data_layout, DataLayoutDimension::HEIGHT), pooled_height);
64 
65  return output_descriptor;
66 }
67 
69 {
70  if((input_id(0) != NullTensorID) && (output_id(0) != NullTensorID))
71  {
72  Tensor *dst = output(0);
73  ARM_COMPUTE_ERROR_ON(dst == nullptr);
74  dst->desc() = configure_output(0);
75  return true;
76  }
77  return false;
78 }
79 
81 {
82  ARM_COMPUTE_UNUSED(idx);
83  ARM_COMPUTE_ERROR_ON(idx >= _outputs.size());
84 
85  const Tensor *src = input(0);
86  ARM_COMPUTE_ERROR_ON(src == nullptr);
87 
88  return compute_output_descriptor(src->desc(), _info);
89 }
90 
92 {
94 }
95 
97 {
98  v.visit(*this);
99 }
100 } // namespace graph
101 } // namespace arm_compute
PoolingLayerNode(PoolingLayerInfo pool_info)
Constructor.
bool forward_descriptors() override
Forwards descriptor information to outputs if possible.
const DataLayout data_layout
Definition: Im2Col.cpp:146
static TensorDescriptor compute_output_descriptor(const TensorDescriptor &input_descriptor, PoolingLayerInfo info)
Computes pooling output descriptor.
TensorDescriptor configure_output(size_t idx) const override
Calculates output configuration.
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
#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.
PoolingLayerInfo pooling_info() const
Pooling metadata accessor.
std::pair< unsigned int, unsigned int > scaled_dimensions(int width, int height, int kernel_width, int kernel_height, const PadStrideInfo &pad_stride_info, const Size2D &dilation=Size2D(1U, 1U))
Returns expected width and height of output scaled tensor depending on dimensions rounding mode.
Definition: Utils.cpp:395
#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
Pooling Layer Information struct.
Definition: Types.h:1181
TensorID input_id(size_t idx) const
Returns the tensor ID of a given input of the node.
Definition: INode.cpp:137
NodeType
Supported nodes.
Definition: Types.h:134
constexpr EdgeID EmptyEdgeID
Definition: Types.h:75
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
DataLayout
[DataLayout enum definition]
Definition: Types.h:120
void accept(INodeVisitor &v) override
Accepts a node visitor.
size_t get_dimension_idx(DataLayout data_layout, const DataLayoutDimension data_layout_dimension)
Get index of a tensor's given dimension depending on its layout.
Definition: Utils.cpp:129
cast configure & src
Definition: Cast.cpp:169
Tensor object.
Definition: Tensor.h:41