1 // This file is part of Eigen, a lightweight C++ template library 2 // for linear algebra. 3 // 4 // Copyright (C) 2014 Benoit Steiner <benoit.steiner.goog (at) gmail.com> 5 // 6 // This Source Code Form is subject to the terms of the Mozilla 7 // Public License v. 2.0. If a copy of the MPL was not distributed 8 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. 9 10 #include "main.h" 11 12 #include <Eigen/CXX11/Tensor> 13 14 using Eigen::Tensor; 15 16 template<int DataLayout> 17 static void test_simple_patch() 18 { 19 Tensor<float, 4, DataLayout> tensor(2,3,5,7); 20 tensor.setRandom(); 21 array<ptrdiff_t, 4> patch_dims; 22 23 patch_dims[0] = 1; 24 patch_dims[1] = 1; 25 patch_dims[2] = 1; 26 patch_dims[3] = 1; 27 28 Tensor<float, 5, DataLayout> no_patch; 29 no_patch = tensor.extract_patches(patch_dims); 30 31 if (DataLayout == ColMajor) { 32 VERIFY_IS_EQUAL(no_patch.dimension(0), 1); 33 VERIFY_IS_EQUAL(no_patch.dimension(1), 1); 34 VERIFY_IS_EQUAL(no_patch.dimension(2), 1); 35 VERIFY_IS_EQUAL(no_patch.dimension(3), 1); 36 VERIFY_IS_EQUAL(no_patch.dimension(4), tensor.size()); 37 } else { 38 VERIFY_IS_EQUAL(no_patch.dimension(0), tensor.size()); 39 VERIFY_IS_EQUAL(no_patch.dimension(1), 1); 40 VERIFY_IS_EQUAL(no_patch.dimension(2), 1); 41 VERIFY_IS_EQUAL(no_patch.dimension(3), 1); 42 VERIFY_IS_EQUAL(no_patch.dimension(4), 1); 43 } 44 45 for (int i = 0; i < tensor.size(); ++i) { 46 VERIFY_IS_EQUAL(tensor.data()[i], no_patch.data()[i]); 47 } 48 49 patch_dims[0] = 2; 50 patch_dims[1] = 3; 51 patch_dims[2] = 5; 52 patch_dims[3] = 7; 53 Tensor<float, 5, DataLayout> single_patch; 54 single_patch = tensor.extract_patches(patch_dims); 55 56 if (DataLayout == ColMajor) { 57 VERIFY_IS_EQUAL(single_patch.dimension(0), 2); 58 VERIFY_IS_EQUAL(single_patch.dimension(1), 3); 59 VERIFY_IS_EQUAL(single_patch.dimension(2), 5); 60 VERIFY_IS_EQUAL(single_patch.dimension(3), 7); 61 VERIFY_IS_EQUAL(single_patch.dimension(4), 1); 62 } else { 63 VERIFY_IS_EQUAL(single_patch.dimension(0), 1); 64 VERIFY_IS_EQUAL(single_patch.dimension(1), 2); 65 VERIFY_IS_EQUAL(single_patch.dimension(2), 3); 66 VERIFY_IS_EQUAL(single_patch.dimension(3), 5); 67 VERIFY_IS_EQUAL(single_patch.dimension(4), 7); 68 } 69 70 for (int i = 0; i < tensor.size(); ++i) { 71 VERIFY_IS_EQUAL(tensor.data()[i], single_patch.data()[i]); 72 } 73 74 patch_dims[0] = 1; 75 patch_dims[1] = 2; 76 patch_dims[2] = 2; 77 patch_dims[3] = 1; 78 Tensor<float, 5, DataLayout> twod_patch; 79 twod_patch = tensor.extract_patches(patch_dims); 80 81 if (DataLayout == ColMajor) { 82 VERIFY_IS_EQUAL(twod_patch.dimension(0), 1); 83 VERIFY_IS_EQUAL(twod_patch.dimension(1), 2); 84 VERIFY_IS_EQUAL(twod_patch.dimension(2), 2); 85 VERIFY_IS_EQUAL(twod_patch.dimension(3), 1); 86 VERIFY_IS_EQUAL(twod_patch.dimension(4), 2*2*4*7); 87 } else { 88 VERIFY_IS_EQUAL(twod_patch.dimension(0), 2*2*4*7); 89 VERIFY_IS_EQUAL(twod_patch.dimension(1), 1); 90 VERIFY_IS_EQUAL(twod_patch.dimension(2), 2); 91 VERIFY_IS_EQUAL(twod_patch.dimension(3), 2); 92 VERIFY_IS_EQUAL(twod_patch.dimension(4), 1); 93 } 94 95 for (int i = 0; i < 2; ++i) { 96 for (int j = 0; j < 2; ++j) { 97 for (int k = 0; k < 4; ++k) { 98 for (int l = 0; l < 7; ++l) { 99 int patch_loc; 100 if (DataLayout == ColMajor) { 101 patch_loc = i + 2 * (j + 2 * (k + 4 * l)); 102 } else { 103 patch_loc = l + 7 * (k + 4 * (j + 2 * i)); 104 } 105 for (int x = 0; x < 2; ++x) { 106 for (int y = 0; y < 2; ++y) { 107 if (DataLayout == ColMajor) { 108 VERIFY_IS_EQUAL(tensor(i,j+x,k+y,l), twod_patch(0,x,y,0,patch_loc)); 109 } else { 110 VERIFY_IS_EQUAL(tensor(i,j+x,k+y,l), twod_patch(patch_loc,0,x,y,0)); 111 } 112 } 113 } 114 } 115 } 116 } 117 } 118 119 patch_dims[0] = 1; 120 patch_dims[1] = 2; 121 patch_dims[2] = 3; 122 patch_dims[3] = 5; 123 Tensor<float, 5, DataLayout> threed_patch; 124 threed_patch = tensor.extract_patches(patch_dims); 125 126 if (DataLayout == ColMajor) { 127 VERIFY_IS_EQUAL(threed_patch.dimension(0), 1); 128 VERIFY_IS_EQUAL(threed_patch.dimension(1), 2); 129 VERIFY_IS_EQUAL(threed_patch.dimension(2), 3); 130 VERIFY_IS_EQUAL(threed_patch.dimension(3), 5); 131 VERIFY_IS_EQUAL(threed_patch.dimension(4), 2*2*3*3); 132 } else { 133 VERIFY_IS_EQUAL(threed_patch.dimension(0), 2*2*3*3); 134 VERIFY_IS_EQUAL(threed_patch.dimension(1), 1); 135 VERIFY_IS_EQUAL(threed_patch.dimension(2), 2); 136 VERIFY_IS_EQUAL(threed_patch.dimension(3), 3); 137 VERIFY_IS_EQUAL(threed_patch.dimension(4), 5); 138 } 139 140 for (int i = 0; i < 2; ++i) { 141 for (int j = 0; j < 2; ++j) { 142 for (int k = 0; k < 3; ++k) { 143 for (int l = 0; l < 3; ++l) { 144 int patch_loc; 145 if (DataLayout == ColMajor) { 146 patch_loc = i + 2 * (j + 2 * (k + 3 * l)); 147 } else { 148 patch_loc = l + 3 * (k + 3 * (j + 2 * i)); 149 } 150 for (int x = 0; x < 2; ++x) { 151 for (int y = 0; y < 3; ++y) { 152 for (int z = 0; z < 5; ++z) { 153 if (DataLayout == ColMajor) { 154 VERIFY_IS_EQUAL(tensor(i,j+x,k+y,l+z), threed_patch(0,x,y,z,patch_loc)); 155 } else { 156 VERIFY_IS_EQUAL(tensor(i,j+x,k+y,l+z), threed_patch(patch_loc,0,x,y,z)); 157 } 158 } 159 } 160 } 161 } 162 } 163 } 164 } 165 } 166 167 void test_cxx11_tensor_patch() 168 { 169 CALL_SUBTEST(test_simple_patch<ColMajor>()); 170 CALL_SUBTEST(test_simple_patch<RowMajor>()); 171 // CALL_SUBTEST(test_expr_shuffling()); 172 } 173
