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

   1 // Copyright (C) 2018-2019 Intel Corporation
   2 // SPDX-License-Identifier: Apache-2.0
   3 //
   4
   5 #pragma once
   6
   7 #include <debug.h>
   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 Split layer
  19  */
  20 class SplitShapeProp : public BuiltInShapeInferImpl {
  21 public:
  22     explicit SplitShapeProp(const std::string& type) : BuiltInShapeInferImpl(type) {}
  23
  24     void inferShapesImpl(const std::vector<Blob::CPtr>& inBlobs,
  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         SplitLayer splitLayer(lp);
  30         splitLayer.params = params;
  31         splitLayer.type = _type;
  32         validate(&splitLayer, inBlobs, params, blobs);
  33
  34         std::vector<int> out_sizes = splitLayer.GetParamAsInts("out_sizes", {});
  35         if (out_sizes.empty())
  36             THROW_IE_EXCEPTION << "Value of out_sizes attribute is empty";
  37
  38         size_t sum(0);
  39         for (const auto& size : out_sizes)
  40             sum += size;
  41         if (sum != inShapes[0][splitLayer._axis])
  42             THROW_IE_EXCEPTION << "The sum of the dimensions on the axis(" << splitLayer._axis
  43                                << ") is not equal out_sizes: " << details::dumpVec(out_sizes);
  44
  45         for (const auto& size : out_sizes) {
  46             outShapes.push_back(inShapes[0]);
  47             outShapes[outShapes.size() - 1][splitLayer._axis] = static_cast<size_t>(size);
  48         }
  49     }
  50 };
  51
  52 }  // namespace ShapeInfer
  53 }  // namespace InferenceEngine