Compute Library
 20.05
DeconvolutionLayerNode.cpp
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25 
26 #include "arm_compute/core/Utils.h"
30 
31 namespace arm_compute
32 {
33 namespace graph
34 {
36  : descriptor(std::move(descriptor))
37 {
38  _input_edges.resize(3, EmptyEdgeID);
39  _outputs.resize(1, NullTensorID);
40 }
41 
43 {
44  return descriptor.info;
45 }
46 
48  const TensorDescriptor &weights_descriptor,
49  const PadStrideInfo &info)
50 {
51  unsigned int output_width = 0;
52  unsigned int output_height = 0;
53 
54  const unsigned int input_width = get_dimension_size(input_descriptor, DataLayoutDimension::WIDTH);
55  const unsigned int input_height = get_dimension_size(input_descriptor, DataLayoutDimension::HEIGHT);
56  const unsigned int kernel_width = get_dimension_size(weights_descriptor, DataLayoutDimension::WIDTH);
57  const unsigned int kernel_height = get_dimension_size(weights_descriptor, DataLayoutDimension::HEIGHT);
58 
59  std::tie(output_width, output_height) = deconvolution_output_dimensions(input_width, input_height, kernel_width, kernel_height, info);
60 
61  const DataLayout data_layout = input_descriptor.layout;
62  TensorDescriptor output_descriptor = input_descriptor;
63  output_descriptor.shape.set(get_dimension_idx(data_layout, DataLayoutDimension::WIDTH), output_width);
64  output_descriptor.shape.set(get_dimension_idx(data_layout, DataLayoutDimension::HEIGHT), output_height);
65  output_descriptor.shape.set(get_dimension_idx(data_layout, DataLayoutDimension::CHANNEL), weights_descriptor.shape[3]);
66 
67  return output_descriptor;
68 }
69 
71 {
72  if((input_id(0) != NullTensorID) && (input_id(1) != NullTensorID) && (output_id(0) != NullTensorID))
73  {
74  Tensor *dst = output(0);
75  ARM_COMPUTE_ERROR_ON(dst == nullptr);
76  dst->desc() = configure_output(0);
77  return true;
78  }
79  return false;
80 }
81 
83 {
84  ARM_COMPUTE_UNUSED(idx);
85  const Tensor *src = input(0);
86  const Tensor *weights = input(1);
87 
88  ARM_COMPUTE_ERROR_ON(src == nullptr || weights == nullptr);
89 
90  TensorDescriptor output_info = compute_output_descriptor(src->desc(), weights->desc(), descriptor.info);
91 
92  if(!descriptor.out_quant_info.empty())
93  {
94  output_info.set_quantization_info(descriptor.out_quant_info);
95  }
96 
97  return output_info;
98 }
99 
101 {
103 }
104 
106 {
107  v.visit(*this);
108 }
109 } // namespace graph
110 } // namespace arm_compute
bool forward_descriptors() override
Forwards descriptor information to outputs if possible.
const DataLayout data_layout
Definition: Im2Col.cpp:146
void accept(INodeVisitor &v) override
Accepts a node visitor.
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
std::pair< unsigned int, unsigned int > deconvolution_output_dimensions(unsigned int in_width, unsigned int in_height, unsigned int kernel_width, unsigned int kernel_height, const PadStrideInfo &pad_stride_info)
Returns expected width and height of the deconvolution's output tensor.
Definition: Utils.cpp:375
NodeType type() const override
Returns node's type.
PadStrideInfo deconvolution_info() const
Deconvolution metadata accessor.
#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.
PadStrideInfo info
Padding and stride information.
static TensorDescriptor compute_output_descriptor(const TensorDescriptor &input_descriptor, const TensorDescriptor &weights_descriptor, const PadStrideInfo &info)
Computes deconvolution output descriptor.
#define ARM_COMPUTE_UNUSED(...)
To avoid unused variables warnings.
Definition: Error.h:152
virtual void visit(INode &n)=0
Visit INode.
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
NodeType
Supported nodes.
Definition: Types.h:134
Padding and stride information class.
Definition: Types.h:689
constexpr EdgeID EmptyEdgeID
Definition: Types.h:75
TensorDescriptor configure_output(size_t idx) const override
Calculates output configuration.
bool empty() const
Indicates whether this QuantizationInfo has valid settings or not.
DeconvolutionLayerNode(const descriptors::DeconvolutionLayerDescriptor &descriptor)
Constructor.
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
QuantizationInfo out_quant_info
Output quantization information.
DataLayout
[DataLayout enum definition]
Definition: Types.h:120
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