25 #ifndef EIGEN_REPLICATE_H
26 #define EIGEN_REPLICATE_H
46 template<
typename MatrixType,
int RowFactor,
int ColFactor>
47 struct traits<Replicate<MatrixType,RowFactor,ColFactor> >
50 typedef typename MatrixType::Scalar Scalar;
56 typedef typename nested<MatrixType,Factor>::type MatrixTypeNested;
57 typedef typename remove_reference<MatrixTypeNested>::type _MatrixTypeNested;
59 RowsAtCompileTime = RowFactor==
Dynamic ||
int(MatrixType::RowsAtCompileTime)==
Dynamic
61 : RowFactor * MatrixType::RowsAtCompileTime,
62 ColsAtCompileTime = ColFactor==
Dynamic ||
int(MatrixType::ColsAtCompileTime)==
Dynamic
64 : ColFactor * MatrixType::ColsAtCompileTime,
66 MaxRowsAtCompileTime = RowsAtCompileTime,
67 MaxColsAtCompileTime = ColsAtCompileTime,
68 IsRowMajor = MaxRowsAtCompileTime==1 && MaxColsAtCompileTime!=1 ? 1
69 : MaxColsAtCompileTime==1 && MaxRowsAtCompileTime!=1 ? 0
72 CoeffReadCost = _MatrixTypeNested::CoeffReadCost
77 template<
typename MatrixType,
int RowFactor,
int ColFactor>
class Replicate
78 :
public internal::dense_xpr_base< Replicate<MatrixType,RowFactor,ColFactor> >::type
80 typedef typename internal::traits<Replicate>::MatrixTypeNested MatrixTypeNested;
81 typedef typename internal::traits<Replicate>::_MatrixTypeNested _MatrixTypeNested;
84 typedef typename internal::dense_xpr_base<Replicate>::type
Base;
87 template<typename OriginalMatrixType>
88 inline explicit
Replicate(const OriginalMatrixType& matrix)
89 : m_matrix(matrix), m_rowFactor(RowFactor), m_colFactor(ColFactor)
91 EIGEN_STATIC_ASSERT((internal::is_same<
typename internal::remove_const<MatrixType>::type,OriginalMatrixType>::value),
92 THE_MATRIX_OR_EXPRESSION_THAT_YOU_PASSED_DOES_NOT_HAVE_THE_EXPECTED_TYPE)
96 template<
typename OriginalMatrixType>
97 inline Replicate(
const OriginalMatrixType& matrix, Index rowFactor, Index colFactor)
98 : m_matrix(matrix), m_rowFactor(rowFactor), m_colFactor(colFactor)
100 EIGEN_STATIC_ASSERT((internal::is_same<
typename internal::remove_const<MatrixType>::type,OriginalMatrixType>::value),
101 THE_MATRIX_OR_EXPRESSION_THAT_YOU_PASSED_DOES_NOT_HAVE_THE_EXPECTED_TYPE)
104 inline Index
rows()
const {
return m_matrix.rows() * m_rowFactor.value(); }
105 inline Index
cols()
const {
return m_matrix.cols() * m_colFactor.value(); }
107 inline Scalar coeff(Index
row, Index
col)
const
110 const Index actual_row = internal::traits<MatrixType>::RowsAtCompileTime==1 ? 0
112 : row%m_matrix.rows();
113 const Index actual_col = internal::traits<MatrixType>::ColsAtCompileTime==1 ? 0
115 : col%m_matrix.cols();
117 return m_matrix.coeff(actual_row, actual_col);
119 template<
int LoadMode>
120 inline PacketScalar packet(Index
row, Index
col)
const
122 const Index actual_row = internal::traits<MatrixType>::RowsAtCompileTime==1 ? 0
124 : row%m_matrix.rows();
125 const Index actual_col = internal::traits<MatrixType>::ColsAtCompileTime==1 ? 0
127 : col%m_matrix.cols();
129 return m_matrix.template packet<LoadMode>(actual_row, actual_col);
132 const _MatrixTypeNested& nestedExpression()
const
139 const internal::variable_if_dynamic<Index, RowFactor>
m_rowFactor;
140 const internal::variable_if_dynamic<Index, ColFactor>
m_colFactor;
151 template<
typename Derived>
152 template<
int RowFactor,
int ColFactor>
167 template<
typename Derived>
182 template<
typename ExpressionType,
int Direction>
192 #endif // EIGEN_REPLICATE_H