inference-engine/src/inference_engine/shape_infer/built-in/ie_concat_shape_infer.hpp

   1 // Copyright (C) 2018 Intel Corporation
   2 //
   3 // SPDX-License-Identifier: Apache-2.0
   4 //
   5
   6 #pragma once
   7
   8 #include "ie_built_in_impl.hpp"
   9 #include <map>
  10 #include <memory>
  11 #include <string>
  12 #include <vector>
  13
  14 namespace InferenceEngine {
  15 namespace ShapeInfer {
  16
  17 /**
  18  *@brief Implementation of Shape inference for Concat layer
  19  */
  20 class ConcatShapeProp : public BuiltInShapeInferImpl {
  21 public:
  22     explicit ConcatShapeProp(const std::string& type) : BuiltInShapeInferImpl(type) {}
  23
  24     void inferShapesImpl(const std::vector<SizeVector>& inShapes,
  25                          const std::map<std::string, std::string>& params,
  26                          const std::map<std::string, Blob::Ptr>& blobs,
  27                          std::vector<SizeVector>& outShapes) override {
  28         LayerParams lp{};
  29         ConcatLayer concatLayer(lp);
  30         concatLayer.params = params;
  31         concatLayer.type = _type;
  32         validate(&concatLayer, inShapes, params, blobs);
  33
  34         size_t sum(0);
  35         size_t axis = concatLayer._axis;
  36         outShapes.push_back(inShapes[0]);
  37         for (const auto& inShape : inShapes) {
  38             if (axis >= inShape.size())
  39                 THROW_IE_EXCEPTION << "Axis can't be more then number of input shapes";
  40             sum += inShape[axis];
  41         }
  42         outShapes[0][axis] = sum;
  43     }
  44 };
  45
  46 }  // namespace ShapeInfer
  47 }  // namespace InferenceEngine