Compute Library
 21.02
SubTensorInfo.h
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24 #ifndef ARM_COMPUTE_SUBTENSORINFO_H
25 #define ARM_COMPUTE_SUBTENSORINFO_H
26 
28 
34 
35 #include <cstddef>
36 #include <memory>
37 
38 namespace arm_compute
39 {
40 /** Store the sub tensor's metadata */
41 class SubTensorInfo final : public ITensorInfo
42 {
43 public:
44  /** Default constructor */
45  SubTensorInfo();
46  /** Default constructor
47  *
48  * @param[in] parent Metadata of parent tensor.
49  * @param[in] tensor_shape Tensor shape. Shape must fit inside parent's shape.
50  * X and Y dimensions must match the parent's ones.
51  * @param[in] coords Coordinates of starting element inside parent tensor.
52  * @param[in] extend_parent (Optional) Extend parent with subtensor shape if subtensor indexes out of bounds
53  */
54  SubTensorInfo(ITensorInfo *parent, TensorShape tensor_shape, Coordinates coords, bool extend_parent = false);
55  /** Default destructor */
56  ~SubTensorInfo() = default;
57  /** Allow instances of this class to be copy constructed */
58  SubTensorInfo(const SubTensorInfo &) = default;
59  /** Allow instances of this class to be copied */
60  SubTensorInfo &operator=(const SubTensorInfo &) = default;
61  /** Allow instances of this class to be move constructed */
62  SubTensorInfo(SubTensorInfo &&) = default;
63  /** Allow instances of this class to be moved */
64  SubTensorInfo &operator=(SubTensorInfo &&) = default;
65  /** Returns the coordinates of the sub-tensor inside the parent tensor
66  *
67  * @return Sub-tensor coordinates
68  */
70  {
71  return _coords;
72  }
73 
74  // Inherited methods overridden:
75  std::unique_ptr<ITensorInfo> clone() const override;
77  {
78  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
79  _parent->set_data_type(data_type);
80  return *this;
81  };
83  {
84  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
85  _parent->set_data_layout(data_layout);
86  return *this;
87  };
89  {
90  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
91  _parent->set_num_channels(num_channels);
92  return *this;
93  };
95  {
96  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
97  _parent->set_format(format);
98  return *this;
99  };
100  ITensorInfo &set_tensor_shape(const TensorShape &shape) override;
101  ITensorInfo &set_tensor_dims_state(const TensorDimsState &state) override;
103  {
104  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
105  _parent->set_quantization_info(quantization_info);
106  return *this;
107  }
109  {
110  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
111  _parent->reset_padding();
112  return *this;
113  }
114  bool auto_padding() override
115  {
116  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
117  return _parent->auto_padding();
118  };
119  bool extend_padding(const PaddingSize &padding) override;
120  size_t dimension(size_t index) const override
121  {
122  return _tensor_shape[index];
123  }
124  size_t dimension(DataLayoutDimension dimension) const override
125  {
126  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
128  }
129  const Strides &strides_in_bytes() const override
130  {
131  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
132  return _parent->strides_in_bytes();
133  }
134  size_t offset_first_element_in_bytes() const override
135  {
136  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
137  return _parent->offset_element_in_bytes(_coords);
138  }
139  int32_t offset_element_in_bytes(const Coordinates &pos) const override;
140  size_t element_size() const override
141  {
142  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
143  return _parent->element_size();
144  }
145  size_t num_dimensions() const override
146  {
147  return _tensor_shape.num_dimensions();
148  }
149  size_t num_channels() const override
150  {
151  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
152  return _parent->num_channels();
153  }
154  const TensorShape &tensor_shape() const override
155  {
156  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
157  return _tensor_shape;
158  }
159  const TensorDimsState &tensor_dims_state() const override
160  {
161  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
162  return _dims_state;
163  }
164  DataType data_type() const override
165  {
166  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
167  return _parent->data_type();
168  }
169  Format format() const override
170  {
171  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
172  return _parent->format();
173  }
174  size_t total_size() const override
175  {
176  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
177  return _parent->total_size();
178  }
179  PaddingSize padding() const override
180  {
181  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
182  return _parent->padding();
183  }
184  bool has_padding() const override
185  {
186  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
187  return _parent->has_padding();
188  }
189  bool is_resizable() const override
190  {
191  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
192  return _parent->is_resizable();
193  }
194  bool is_dynamic() const override
195  {
196  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
197  return _parent->is_dynamic();
198  }
200  {
201  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
202  _parent->set_is_resizable(is_resizable);
203  return *this;
204  }
205  ValidRegion valid_region() const override
206  {
207  return _valid_region;
208  }
210  {
211  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
212  // Check if subtensor is valid if parent is configured
213  if(_parent->tensor_shape().total_size() != 0)
214  {
216  }
217  _valid_region = valid_region;
218  }
220  {
221  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
222  return _parent->quantization_info();
223  }
224  DataLayout data_layout() const override
225  {
226  ARM_COMPUTE_ERROR_ON(_parent == nullptr);
227  return _parent->data_layout();
228  }
229 
230 private:
231  ITensorInfo *_parent;
232  TensorShape _tensor_shape;
233  TensorDimsState _dims_state;
234  Coordinates _coords;
235  ValidRegion _valid_region;
236  bool _extend_parent;
237 };
238 } // namespace arm_compute
239 #endif /*ARM_COMPUTE_SUBTENSORINFO_H */
size_t element_size() const override
Element size in bytes calculated as data_size() * num_channels()
virtual ITensorInfo & set_num_channels(int num_channels)=0
Set the number of channels to the specified value.
size_t total_size() const override
Returns the total size of the tensor in bytes.
Shape of a tensor.
Definition: TensorShape.h:39
Coordinates coords() const
Returns the coordinates of the sub-tensor inside the parent tensor.
Definition: SubTensorInfo.h:69
ITensorInfo & set_is_resizable(bool is_resizable) override
Set the flag whether the tensor size can be changed.
virtual int32_t offset_element_in_bytes(const Coordinates &pos) const =0
The offset in bytes from the beginning of the memory allocation to access the element at position (x...
Coordinates TensorDimsState
Definition: ITensorInfo.h:43
bool extend_padding(const PaddingSize &padding) override
Update the offset to the first element, the strides and the total size.
Container for 2D border size.
Definition: Types.h:273
DataLayoutDimension
[DataLayout enum definition]
Definition: Types.h:129
virtual DataType data_type() const =0
Data type used for each element of the tensor.
QuantizationInfo quantization_info() const override
Get the quantization settings (scale and offset) of the tensor.
DataLayout data_layout() const override
Get the data layout of the tensor.
#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
Store the tensor&#39;s metadata.
Definition: ITensorInfo.h:40
virtual bool is_dynamic() const =0
Flag indicating whether the shape of the tensor is dynamic, meaning that it can change on kernel/func...
ITensorInfo & set_format(Format format) override
Set the format of an already initialized tensor.
Definition: SubTensorInfo.h:94
const Strides & strides_in_bytes() const override
The strides in bytes for accessing each dimension of the tensor.
virtual ITensorInfo & reset_padding()=0
Resets the padding settings of the tensor.
Store the sub tensor&#39;s metadata.
Definition: SubTensorInfo.h:41
Copyright (c) 2017-2021 Arm Limited.
virtual ValidRegion valid_region() const =0
Valid region of the tensor.
SubTensorInfo & operator=(const SubTensorInfo &)=default
Allow instances of this class to be copied.
virtual bool is_resizable() const =0
Flag indicating whether the size of the tensor can be changed.
Quantization information.
size_t offset_first_element_in_bytes() const override
The offset from the beginning of the memory allocation to the first element of the tensor...
virtual Format format() const =0
Colour format of the image.
bool auto_padding() override
Update the offset to the first element and the strides to automatically computed values.
PaddingSize padding() const override
Padding of tensor.
virtual bool auto_padding()=0
Update the offset to the first element and the strides to automatically computed values.
virtual const TensorShape & tensor_shape() const =0
Size for each dimension of the tensor.
virtual ITensorInfo & set_data_layout(const DataLayout &data_layout)=0
Set the data layout of the tensor.
Format
Image colour formats.
Definition: Types.h:54
ValidRegion valid_region() const override
Valid region of the tensor.
Coordinates of an item.
Definition: Coordinates.h:37
~SubTensorInfo()=default
Default destructor.
size_t total_size() const
Collapses all dimensions to a single linear total size.
Definition: TensorShape.h:172
Format format() const override
Colour format of the image.
const TensorShape & tensor_shape() const override
Size for each dimension of the tensor.
ITensorInfo & set_tensor_dims_state(const TensorDimsState &state) override
virtual size_t element_size() const =0
Element size in bytes calculated as data_size() * num_channels()
virtual PaddingSize padding() const =0
Padding of tensor.
virtual ITensorInfo & set_quantization_info(const QuantizationInfo &quantization_info)=0
Set the quantization settings (scale and offset) of the tensor.
ITensorInfo & reset_padding() override
Resets the padding settings of the tensor.
virtual ITensorInfo & set_data_type(DataType data_type)=0
Set the data type to the specified value.
virtual QuantizationInfo quantization_info() const =0
Get the quantization settings (scale and offset) of the tensor.
Strides of an item in bytes.
Definition: Strides.h:37
const TensorDimsState & tensor_dims_state() const override
State of each dimension of the tensor shape.
virtual size_t total_size() const =0
Returns the total size of the tensor in bytes.
size_t dimension(DataLayoutDimension dimension) const override
Return the size of the requested data layout dimension.
SubTensorInfo()
Default constructor.
size_t num_dimensions() const override
The number of dimensions of the tensor (rank)
DataType data_type() const override
Data type used for each element of the tensor.
bool is_resizable() const override
Flag indicating whether the size of the tensor can be changed.
size_t num_channels() const override
The number of channels for each tensor element.
std::unique_ptr< ITensorInfo > clone() const override
Provide a clone of the current object of class T.
unsigned int num_dimensions() const
Returns the effective dimensionality of the tensor.
Definition: Dimensions.h:143
bool has_padding() const override
Checks if the tensor has been allocated with padding or not.
int32_t offset_element_in_bytes(const Coordinates &pos) const override
The offset in bytes from the beginning of the memory allocation to access the element at position (x...
#define ARM_COMPUTE_ERROR_ON_INVALID_SUBTENSOR_VALID_REGION(pv, sv)
Definition: Validate.h:976
ITensorInfo & set_tensor_shape(const TensorShape &shape) override
Set the shape of an already initialized tensor.
virtual const Strides & strides_in_bytes() const =0
The strides in bytes for accessing each dimension of the tensor.
Container for valid region of a window.
Definition: Types.h:188
size_t get_data_layout_dimension_index(const DataLayout data_layout, const DataLayoutDimension data_layout_dimension)
Get the index of the given dimension.
Definition: Helpers.inl:193
virtual ITensorInfo & set_format(Format format)=0
Set the format of an already initialized tensor.
ITensorInfo & set_quantization_info(const QuantizationInfo &quantization_info) override
Set the quantization settings (scale and offset) of the tensor.
DataType
Available data types.
Definition: Types.h:77
void set_valid_region(const ValidRegion &valid_region) override
Set the valid region of the tensor.
DataLayout
[DataLayout enum definition]
Definition: Types.h:120
ITensorInfo & set_num_channels(int num_channels) override
Set the number of channels to the specified value.
Definition: SubTensorInfo.h:88
virtual size_t num_channels() const =0
The number of channels for each tensor element.
ITensorInfo & set_data_type(DataType data_type) override
Set the data type to the specified value.
Definition: SubTensorInfo.h:76
virtual bool has_padding() const =0
Checks if the tensor has been allocated with padding or not.
ITensorInfo & set_data_layout(const DataLayout &data_layout) override
Set the data layout of the tensor.
Definition: SubTensorInfo.h:82
virtual ITensorInfo & set_is_resizable(bool is_resizable)=0
Set the flag whether the tensor size can be changed.
size_t dimension(size_t index) const override
Return the size of the requested dimension.
bool is_dynamic() const override
Flag indicating whether the shape of the tensor is dynamic, meaning that it can change on kernel/func...
virtual DataLayout data_layout() const =0
Get the data layout of the tensor.