1 // Copyright (C) 2018-2019 Intel Corporation
2 // SPDX-License-Identifier: Apache-2.0
7 #include <description_buffer.hpp>
8 #include "ie_built_in_impl.hpp"
15 #include <ie_format_parser.h>
17 namespace InferenceEngine {
18 namespace ShapeInfer {
21 *@brief Implementation of Shape inference for Convolution layer
23 class ConvShapeProp : public BuiltInShapeInferImpl {
25 explicit ConvShapeProp(const std::string& type) : BuiltInShapeInferImpl(type) {}
27 void inferShapesImpl(const std::vector<Blob::CPtr>& inBlobs,
28 const std::map<std::string, std::string>& params,
29 const std::map<std::string, Blob::Ptr>& blobs,
30 std::vector<SizeVector>& outShapes) override {
32 ConvolutionLayer convLayer(lp);
33 convLayer.params = params;
34 convLayer.type = _type;
35 validate(&convLayer, inBlobs, params, blobs);
37 auto dims = inShapes[0];
38 auto dims_size = dims.size();
39 auto spacial_d_size = dims.size() - 2;
40 float* OD_temp = new float[spacial_d_size];
41 size_t* KDims = new size_t[spacial_d_size];
42 size_t inputN = dims[0];
43 for (int i = 0; i < spacial_d_size; i++) {
44 if (convLayer._dilation[i])
45 KDims[i] = (convLayer._kernel[i] - 1) * convLayer._dilation[i] + 1;
47 KDims[i] = convLayer._kernel[i];
49 size_t OC = convLayer._out_depth;
50 std::string padType = convLayer._auto_pad;
51 if (padType == "valid") {
52 for (int i = 0; i < spacial_d_size; i++)
53 OD_temp[i] = std::ceil((dims[dims_size - 1 - i] - KDims[i] + 1.f) / convLayer._stride[i]);
54 } else if (padType == "same_upper") {
55 for (int i = 0; i < spacial_d_size; i++)
56 OD_temp[i] = std::ceil(1.f * dims[dims_size - 1 - i] / convLayer._stride[i]);
57 } else if (padType == "same_lower") {
58 for (int i = 0; i < spacial_d_size; i++)
59 OD_temp[i] = std::floor(1.f * dims[dims_size - 1 - i] / convLayer._stride[i]);
61 for (int i = 0; i < spacial_d_size; i++) {
62 OD_temp[i] = std::floor(1.f * (dims[dims_size - 1 - i] +
63 convLayer._padding[i] + convLayer._pads_end[i] - KDims[i]) /
64 convLayer._stride[i]) + 1.f;
68 for (int i = 0; i < spacial_d_size; i++)
70 THROW_IE_EXCEPTION << "New shapes " << details::dumpVec(dims) << " make output shape negative";
72 SizeVector outShape = {inputN, OC};
73 for (int i = spacial_d_size - 1; i >= 0; i--)
74 outShape.push_back(static_cast<size_t>(OD_temp[i]));
76 outShapes.push_back(outShape);
83 } // namespace ShapeInfer
84 } // namespace InferenceEngine