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"
13 #include <ie_format_parser.h>
15 namespace InferenceEngine {
16 namespace ShapeInfer {
19 *@brief Implementation of Shape inference for Deconvolution layer
21 class DeconvShapeProp : public BuiltInShapeInferImpl {
23 explicit DeconvShapeProp(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 DeconvolutionLayer deconvLayer(lp);
31 deconvLayer.params = params;
32 deconvLayer.type = _type;
33 validate(&deconvLayer, 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 size_t* KDims = new size_t[spacial_d_size];
40 size_t inputN = dims[0];
41 for (int i = 0; i < spacial_d_size; i++) {
42 if (deconvLayer._dilation[i])
43 KDims[i] = (deconvLayer._kernel[i] - 1) * deconvLayer._dilation[i] + 1;
45 KDims[i] = deconvLayer._kernel[i];
47 size_t OC = deconvLayer._out_depth;
48 std::string padType = deconvLayer._auto_pad;
49 if (padType == "valid") {
50 for (int i = 0; i < spacial_d_size; i++)
51 OD_temp[i] = dims[dims_size - 1 - i] * deconvLayer._stride[i] + KDims[i] - 1;
52 } else if ((padType == "same_upper") || (padType == "same_lower")) {
53 for (int i = 0; i < spacial_d_size; i++)
54 OD_temp[i] = dims[dims_size - 1 - i] * deconvLayer._stride[i];
56 for (int i = 0; i < spacial_d_size; i++)
57 OD_temp[i] = deconvLayer._stride[i] * (dims[dims_size - 1 - i] - 1) +
58 KDims[i] - deconvLayer._padding[i] - deconvLayer._pads_end[i];
60 for (int i = 0; i < spacial_d_size; i++)
62 THROW_IE_EXCEPTION << "New shapes " << details::dumpVec(dims) << " make output shape negative";
64 SizeVector outShape = {inputN, OC};
65 for (int i = spacial_d_size - 1; i >= 0; i--)
66 outShape.push_back(static_cast<size_t>(OD_temp[i]));
68 outShapes.emplace_back(outShape);
75 } // namespace ShapeInfer
76 } // namespace InferenceEngine