cxx11_tensor_patch.cpp File Reference

#include "main.h"
#include <Eigen/CXX11/Tensor>

Functions
template<int DataLayout>
static void	test_simple_patch ()
	EIGEN_DECLARE_TEST (cxx11_tensor_patch)

Function Documentation

EIGEN_DECLARE_TEST()

EIGEN_DECLARE_TEST

(

cxx11_tensor_patch

)

                                       {
  CALL_SUBTEST(test_simple_patch<ColMajor>());
  CALL_SUBTEST(test_simple_patch<RowMajor>());
  //   CALL_SUBTEST(test_expr_shuffling());
}

References CALL_SUBTEST.

test_simple_patch()

template<int DataLayout>

static void test_simple_patch ( )

static

                                {
  Tensor<float, 4, DataLayout> tensor(2, 3, 5, 7);
  tensor.setRandom();
  array<ptrdiff_t, 4> patch_dims;
 
  patch_dims[0] = 1;
  patch_dims[1] = 1;
  patch_dims[2] = 1;
  patch_dims[3] = 1;
 
  Tensor<float, 5, DataLayout> no_patch;
  no_patch = tensor.extract_patches(patch_dims);
 
  if (DataLayout == ColMajor) {
    VERIFY_IS_EQUAL(no_patch.dimension(0), 1);
    VERIFY_IS_EQUAL(no_patch.dimension(1), 1);
    VERIFY_IS_EQUAL(no_patch.dimension(2), 1);
    VERIFY_IS_EQUAL(no_patch.dimension(3), 1);
    VERIFY_IS_EQUAL(no_patch.dimension(4), tensor.size());
  } else {
    VERIFY_IS_EQUAL(no_patch.dimension(0), tensor.size());
    VERIFY_IS_EQUAL(no_patch.dimension(1), 1);
    VERIFY_IS_EQUAL(no_patch.dimension(2), 1);
    VERIFY_IS_EQUAL(no_patch.dimension(3), 1);
    VERIFY_IS_EQUAL(no_patch.dimension(4), 1);
  }
 
  for (int i = 0; i < tensor.size(); ++i) {
    VERIFY_IS_EQUAL(tensor.data()[i], no_patch.data()[i]);
  }
 
  patch_dims[0] = 2;
  patch_dims[1] = 3;
  patch_dims[2] = 5;
  patch_dims[3] = 7;
  Tensor<float, 5, DataLayout> single_patch;
  single_patch = tensor.extract_patches(patch_dims);
 
  if (DataLayout == ColMajor) {
    VERIFY_IS_EQUAL(single_patch.dimension(0), 2);
    VERIFY_IS_EQUAL(single_patch.dimension(1), 3);
    VERIFY_IS_EQUAL(single_patch.dimension(2), 5);
    VERIFY_IS_EQUAL(single_patch.dimension(3), 7);
    VERIFY_IS_EQUAL(single_patch.dimension(4), 1);
  } else {
    VERIFY_IS_EQUAL(single_patch.dimension(0), 1);
    VERIFY_IS_EQUAL(single_patch.dimension(1), 2);
    VERIFY_IS_EQUAL(single_patch.dimension(2), 3);
    VERIFY_IS_EQUAL(single_patch.dimension(3), 5);
    VERIFY_IS_EQUAL(single_patch.dimension(4), 7);
  }
 
  for (int i = 0; i < tensor.size(); ++i) {
    VERIFY_IS_EQUAL(tensor.data()[i], single_patch.data()[i]);
  }
 
  patch_dims[0] = 1;
  patch_dims[1] = 2;
  patch_dims[2] = 2;
  patch_dims[3] = 1;
  Tensor<float, 5, DataLayout> twod_patch;
  twod_patch = tensor.extract_patches(patch_dims);
 
  if (DataLayout == ColMajor) {
    VERIFY_IS_EQUAL(twod_patch.dimension(0), 1);
    VERIFY_IS_EQUAL(twod_patch.dimension(1), 2);
    VERIFY_IS_EQUAL(twod_patch.dimension(2), 2);
    VERIFY_IS_EQUAL(twod_patch.dimension(3), 1);
    VERIFY_IS_EQUAL(twod_patch.dimension(4), 2 * 2 * 4 * 7);
  } else {
    VERIFY_IS_EQUAL(twod_patch.dimension(0), 2 * 2 * 4 * 7);
    VERIFY_IS_EQUAL(twod_patch.dimension(1), 1);
    VERIFY_IS_EQUAL(twod_patch.dimension(2), 2);
    VERIFY_IS_EQUAL(twod_patch.dimension(3), 2);
    VERIFY_IS_EQUAL(twod_patch.dimension(4), 1);
  }
 
  for (int i = 0; i < 2; ++i) {
    for (int j = 0; j < 2; ++j) {
      for (int k = 0; k < 4; ++k) {
        for (int l = 0; l < 7; ++l) {
          int patch_loc;
          if (DataLayout == ColMajor) {
            patch_loc = i + 2 * (j + 2 * (k + 4 * l));
          } else {
            patch_loc = l + 7 * (k + 4 * (j + 2 * i));
          }
          for (int x = 0; x < 2; ++x) {
            for (int y = 0; y < 2; ++y) {
              if (DataLayout == ColMajor) {
                VERIFY_IS_EQUAL(tensor(i, j + x, k + y, l), twod_patch(0, x, y, 0, patch_loc));
              } else {
                VERIFY_IS_EQUAL(tensor(i, j + x, k + y, l), twod_patch(patch_loc, 0, x, y, 0));
              }
            }
          }
        }
      }
    }
  }
 
  patch_dims[0] = 1;
  patch_dims[1] = 2;
  patch_dims[2] = 3;
  patch_dims[3] = 5;
  Tensor<float, 5, DataLayout> threed_patch;
  threed_patch = tensor.extract_patches(patch_dims);
 
  if (DataLayout == ColMajor) {
    VERIFY_IS_EQUAL(threed_patch.dimension(0), 1);
    VERIFY_IS_EQUAL(threed_patch.dimension(1), 2);
    VERIFY_IS_EQUAL(threed_patch.dimension(2), 3);
    VERIFY_IS_EQUAL(threed_patch.dimension(3), 5);
    VERIFY_IS_EQUAL(threed_patch.dimension(4), 2 * 2 * 3 * 3);
  } else {
    VERIFY_IS_EQUAL(threed_patch.dimension(0), 2 * 2 * 3 * 3);
    VERIFY_IS_EQUAL(threed_patch.dimension(1), 1);
    VERIFY_IS_EQUAL(threed_patch.dimension(2), 2);
    VERIFY_IS_EQUAL(threed_patch.dimension(3), 3);
    VERIFY_IS_EQUAL(threed_patch.dimension(4), 5);
  }
 
  for (int i = 0; i < 2; ++i) {
    for (int j = 0; j < 2; ++j) {
      for (int k = 0; k < 3; ++k) {
        for (int l = 0; l < 3; ++l) {
          int patch_loc;
          if (DataLayout == ColMajor) {
            patch_loc = i + 2 * (j + 2 * (k + 3 * l));
          } else {
            patch_loc = l + 3 * (k + 3 * (j + 2 * i));
          }
          for (int x = 0; x < 2; ++x) {
            for (int y = 0; y < 3; ++y) {
              for (int z = 0; z < 5; ++z) {
                if (DataLayout == ColMajor) {
                  VERIFY_IS_EQUAL(tensor(i, j + x, k + y, l + z), threed_patch(0, x, y, z, patch_loc));
                } else {
                  VERIFY_IS_EQUAL(tensor(i, j + x, k + y, l + z), threed_patch(patch_loc, 0, x, y, z));
                }
              }
            }
          }
        }
      }
    }
  }
}

References Eigen::ColMajor, Eigen::Tensor< Scalar_, NumIndices_, Options_, IndexType_ >::data(), DataLayout, Eigen::Tensor< Scalar_, NumIndices_, Options_, IndexType_ >::dimension(), i, j, k, Eigen::TensorBase< Derived, AccessLevel >::setRandom(), Eigen::Tensor< Scalar_, NumIndices_, Options_, IndexType_ >::size(), VERIFY_IS_EQUAL, plotDoE::x, and y.