1 // Copyright (C) 2018-2019 Intel Corporation
2 // SPDX-License-Identifier: Apache-2.0
7 #include "ie_built_in_impl.hpp"
13 #include <ie_format_parser.h>
15 namespace InferenceEngine {
16 namespace ShapeInfer {
19 *@brief Implementation of Shape inference for Pooling layer
21 class PoolingShapeProp : public BuiltInShapeInferImpl {
23 explicit PoolingShapeProp(const std::string& type) : BuiltInShapeInferImpl(type) {}
25 void inferShapesImpl(const std::vector<Blob::CPtr>& inBlobs,
26 const std::map<std::string, std::string>& params,
27 const std::map<std::string, Blob::Ptr>& blobs,
28 std::vector<SizeVector>& outShapes) override {
30 PoolingLayer poolLayer(lp);
31 poolLayer.params = params;
32 poolLayer.type = _type;
33 validate(&poolLayer, inBlobs, params, blobs);
35 auto dims = inShapes[0];
36 auto dims_size = dims.size();
37 auto spacial_d_size = dims.size() - 2;
38 float* OD_temp = new float[spacial_d_size];
39 for (int i = 0; i < spacial_d_size; i++)
41 size_t inputN = dims[0];
44 std::string padType = poolLayer._auto_pad;
45 if (padType == "valid") {
46 for (int i = 0; i < spacial_d_size; i++)
47 OD_temp[i] = std::ceil((dims[dims_size - 1 - i] - poolLayer._kernel[i] + 1.f) / poolLayer._stride[i]);
48 } else if (padType == "same_upper") {
49 for (int i = 0; i < spacial_d_size; i++)
50 OD_temp[i] = std::ceil(1.f * dims[dims_size - 1 - i] / poolLayer._stride[i]);
51 } else if (padType == "same_lower") {
52 for (int i = 0; i < spacial_d_size; i++)
53 OD_temp[i] = std::floor(1.f * dims[dims_size - 1 - i] / poolLayer._stride[i]);
55 auto it = std::find_if(
56 poolLayer.params.begin(),
57 poolLayer.params.end(),
58 [](decltype(*poolLayer.params.begin()) & lhs) {
59 return lhs.first == "rounding-type" || lhs.first == "rounding_type";
62 if (it != poolLayer.params.end()) {
63 if (it->second == "floor") isCeil = false;
65 for (int i = 0; i < spacial_d_size; i++)
66 OD_temp[i] += 1.f * (dims[dims_size - 1 - i] + poolLayer._padding[i] +
67 poolLayer._pads_end[i] - poolLayer._kernel[i]) / poolLayer._stride[i];
69 for (int i = 0; i < spacial_d_size; i++)
70 OD_temp[i] = std::ceil(OD_temp[i]);
72 for (int i = 0; i < spacial_d_size; i++)
73 OD_temp[i] = std::floor(OD_temp[i]);
75 for (int i = 0; i < spacial_d_size; i++)
76 if ((OD_temp[i] - 1) * poolLayer._stride[i] >= dims[dims_size - 1 - i] +
77 poolLayer._padding[i]) --OD_temp[i];
79 for (int i = 0; i < spacial_d_size; i++)
81 THROW_IE_EXCEPTION << "New shapes " << details::dumpVec(dims) << " make output shape negative";
83 SizeVector outShape = {inputN, IC};
84 for (int i = spacial_d_size - 1; i >= 0; i--)
85 outShape.push_back(static_cast<size_t>(OD_temp[i]));
87 outShapes.emplace_back(outShape);
93 } // namespace ShapeInfer
94 } // namespace InferenceEngine