ie_data.h

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 // Copyright (C) 2018-2019 Intel Corporation


 // SPDX-License-Identifier: Apache-2.0


 //


 


 /**


  * @brief This header file defines the main Data representation node.


  * @file ie_data.h


  */


 #pragma once


 

 #include <map>


 #include <memory>


 #include <vector>


 #include "ie_api.h"


 #include "ie_common.h"


 #include "details/ie_exception.hpp"


 #include "ie_precision.hpp"


 #include "ie_layouts.h"


 #include <string>


 

 namespace InferenceEngine {


 /**


  * @brief This class represents the main Data representation node.


  *


  * The NN graphs are di-graphs consisting of data nodes and layer nodes.


  */


 class INFERENCE_ENGINE_API_CLASS(Data) {

 public:


     /**


      * @deprecated Deprecated. Please use getPrecision()


      * @brief A precision type of this Data instance


      */


     Precision precision;


     /**


      * @deprecated Deprecated. Please use getFormat()


      * @brief A data layout of this Data instance


      */


     Layout layout;


     /**


      * @deprecated Deprecated. Please use getDims()


      * @brief A tensor dimension array (the order is opposite to the order in the IR: w,h,c,n) of this Data instance


      */


     SizeVector dims;


     /**


      * @deprecated Deprecated. Please use getCreatorLayer()


      * @brief A pointer to the layer that creates this data element, null for input data elements


      */


     CNNLayerWeakPtr creatorLayer;


     /**


      * @deprecated Deprecated. Please use getName()


      * @brief A unique name that identifies this data node


      */


     std::string name;


     /**


      * @deprecated Deprecated. Please use getInputTo()


      * @brief A map of layers that use this node as input.


      * It is useful for recursive NN graph traversal.


      */


     std::map<std::string, CNNLayerPtr> inputTo;


     /**


      * @deprecated Deprecated. Please use getUserObject()


      * @brief A user utility place holder


      */


     UserValue userObject;

 


     /**


      * @brief An empty constructor (dimensionless)


      * @param name Name of the data node


      * @param _precision Precision of the data


      */


     Data(const std::string &name, Precision _precision, Layout layout = NCHW);

 


     /**


      * @brief A full constructor (with dimensions)


      * @param name Name of the data node


      * @param a_dims Data tensor dimensions


      * @param _precision Precision of the data


      */


     Data(const std::string &name, const SizeVector &a_dims, Precision _precision, Layout layout = NCHW);


     /**


      * @brief A constructor with tensor descriptor


      * @param name Name of the data node


      * @param desc Tensor descriptor


      */


     Data(const std::string &name, const TensorDesc& desc);

 


     /**


      * @brief Checks if the current node is resolved


      * @return true if resolved, false otherwise.


      */


     bool isInitialized() const;

 


     /**


      * @brief Sets the data dimensions.


      * After the current node is marked as resolved.


      * @param a_dims Tensor dimensions to set


      */


     void setDims(const SizeVector &a_dims);

 


     /**


     * @deprecated


     * @brief Sets the batch value in the data dimensions.


     * Batch is defined as the last element in the dimensions vector.


     * @param batch_size Batch size to set


     */


     void setBatchSize(size_t batch_size);

 


     /**


     * @brief Sets the layout value for this Data instance


     * @param layout Layout value to set


     */


     void setLayout(Layout layout);

 


     /**


      * @brief changes dims and layout at same time


      * @param dims new dimensions


      * @param layout new layout


      */


     void reshape(const SizeVector &dims, Layout layout);

 


     /**


     * @brief Gets the layout value for this Data instance


     */


     Layout getLayout() const;

 


     /**


     * @brief Gets Tensor descriptor reference


       @return reference to TensorDesc


     */


     const TensorDesc& getTensorDesc() const;

 


     /**


      * @brief Gets a precision type of this Data instance


      * @return Precision type


      */


     const Precision& getPrecision() const;

 


     /**


      * @brief Gets a precision type of this Data instance


      * @return Precision type


      */


     void setPrecision(const Precision& precision);

 


     /**


      * @return data dimensions


      */


     const SizeVector& getDims() const;

 


     /**


      * @return owner of this data layer, parent layer in di-graph


      */


     CNNLayerWeakPtr& getCreatorLayer();

 


     /**


      * @return name of the data object


      */


     const std::string& getName() const;

 


     /**


      * @brief returns child layers in di-graph


      */


     std::map<std::string, CNNLayerPtr>& getInputTo();

 


     /**


      * @return convenient arbitrary user data holder


      */


     const UserValue& getUserObject() const;

 private:

     mutable TensorDesc tensorDesc;

 };

 }  // namespace InferenceEngine