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Diffstat (limited to 'src/Eigen/src/SparseCore/SparseBlock.h')
| -rw-r--r-- | src/Eigen/src/SparseCore/SparseBlock.h | 409 |
1 files changed, 0 insertions, 409 deletions
diff --git a/src/Eigen/src/SparseCore/SparseBlock.h b/src/Eigen/src/SparseCore/SparseBlock.h deleted file mode 100644 index 16a20a5..0000000 --- a/src/Eigen/src/SparseCore/SparseBlock.h +++ /dev/null @@ -1,409 +0,0 @@ -// This file is part of Eigen, a lightweight C++ template library -// for linear algebra. -// -// Copyright (C) 2008-2009 Gael Guennebaud <gael.guennebaud@inria.fr> -// -// This Source Code Form is subject to the terms of the Mozilla -// Public License v. 2.0. If a copy of the MPL was not distributed -// with this file, You can obtain one at http://mozilla.org/MPL/2.0/. - -#ifndef EIGEN_SPARSE_BLOCK_H -#define EIGEN_SPARSE_BLOCK_H - -namespace Eigen { - -template<typename XprType, int BlockRows, int BlockCols> -class BlockImpl<XprType,BlockRows,BlockCols,true,Sparse> - : public SparseMatrixBase<Block<XprType,BlockRows,BlockCols,true> > -{ - typedef typename internal::remove_all<typename XprType::Nested>::type _MatrixTypeNested; - typedef Block<XprType, BlockRows, BlockCols, true> BlockType; -public: - enum { IsRowMajor = internal::traits<BlockType>::IsRowMajor }; -protected: - enum { OuterSize = IsRowMajor ? BlockRows : BlockCols }; -public: - EIGEN_SPARSE_PUBLIC_INTERFACE(BlockType) - - class InnerIterator: public XprType::InnerIterator - { - typedef typename BlockImpl::Index Index; - public: - inline InnerIterator(const BlockType& xpr, Index outer) - : XprType::InnerIterator(xpr.m_matrix, xpr.m_outerStart + outer), m_outer(outer) - {} - inline Index row() const { return IsRowMajor ? m_outer : this->index(); } - inline Index col() const { return IsRowMajor ? this->index() : m_outer; } - protected: - Index m_outer; - }; - class ReverseInnerIterator: public XprType::ReverseInnerIterator - { - typedef typename BlockImpl::Index Index; - public: - inline ReverseInnerIterator(const BlockType& xpr, Index outer) - : XprType::ReverseInnerIterator(xpr.m_matrix, xpr.m_outerStart + outer), m_outer(outer) - {} - inline Index row() const { return IsRowMajor ? m_outer : this->index(); } - inline Index col() const { return IsRowMajor ? this->index() : m_outer; } - protected: - Index m_outer; - }; - - inline BlockImpl(const XprType& xpr, int i) - : m_matrix(xpr), m_outerStart(i), m_outerSize(OuterSize) - {} - - inline BlockImpl(const XprType& xpr, int startRow, int startCol, int blockRows, int blockCols) - : m_matrix(xpr), m_outerStart(IsRowMajor ? startRow : startCol), m_outerSize(IsRowMajor ? blockRows : blockCols) - {} - - EIGEN_STRONG_INLINE Index rows() const { return IsRowMajor ? m_outerSize.value() : m_matrix.rows(); } - EIGEN_STRONG_INLINE Index cols() const { return IsRowMajor ? m_matrix.cols() : m_outerSize.value(); } - - protected: - - typename XprType::Nested m_matrix; - Index m_outerStart; - const internal::variable_if_dynamic<Index, OuterSize> m_outerSize; - - EIGEN_INHERIT_ASSIGNMENT_OPERATORS(BlockImpl) -}; - - -/*************************************************************************** -* specialisation for SparseMatrix -***************************************************************************/ - -template<typename _Scalar, int _Options, typename _Index, int BlockRows, int BlockCols> -class BlockImpl<SparseMatrix<_Scalar, _Options, _Index>,BlockRows,BlockCols,true,Sparse> - : public SparseMatrixBase<Block<SparseMatrix<_Scalar, _Options, _Index>,BlockRows,BlockCols,true> > -{ - typedef SparseMatrix<_Scalar, _Options, _Index> SparseMatrixType; - typedef typename internal::remove_all<typename SparseMatrixType::Nested>::type _MatrixTypeNested; - typedef Block<SparseMatrixType, BlockRows, BlockCols, true> BlockType; -public: - enum { IsRowMajor = internal::traits<BlockType>::IsRowMajor }; - EIGEN_SPARSE_PUBLIC_INTERFACE(BlockType) -protected: - enum { OuterSize = IsRowMajor ? BlockRows : BlockCols }; -public: - - class InnerIterator: public SparseMatrixType::InnerIterator - { - public: - inline InnerIterator(const BlockType& xpr, Index outer) - : SparseMatrixType::InnerIterator(xpr.m_matrix, xpr.m_outerStart + outer), m_outer(outer) - {} - inline Index row() const { return IsRowMajor ? m_outer : this->index(); } - inline Index col() const { return IsRowMajor ? this->index() : m_outer; } - protected: - Index m_outer; - }; - class ReverseInnerIterator: public SparseMatrixType::ReverseInnerIterator - { - public: - inline ReverseInnerIterator(const BlockType& xpr, Index outer) - : SparseMatrixType::ReverseInnerIterator(xpr.m_matrix, xpr.m_outerStart + outer), m_outer(outer) - {} - inline Index row() const { return IsRowMajor ? m_outer : this->index(); } - inline Index col() const { return IsRowMajor ? this->index() : m_outer; } - protected: - Index m_outer; - }; - - inline BlockImpl(const SparseMatrixType& xpr, int i) - : m_matrix(xpr), m_outerStart(i), m_outerSize(OuterSize) - {} - - inline BlockImpl(const SparseMatrixType& xpr, int startRow, int startCol, int blockRows, int blockCols) - : m_matrix(xpr), m_outerStart(IsRowMajor ? startRow : startCol), m_outerSize(IsRowMajor ? blockRows : blockCols) - {} - - template<typename OtherDerived> - inline BlockType& operator=(const SparseMatrixBase<OtherDerived>& other) - { - typedef typename internal::remove_all<typename SparseMatrixType::Nested>::type _NestedMatrixType; - _NestedMatrixType& matrix = const_cast<_NestedMatrixType&>(m_matrix);; - // This assignement is slow if this vector set is not empty - // and/or it is not at the end of the nonzeros of the underlying matrix. - - // 1 - eval to a temporary to avoid transposition and/or aliasing issues - SparseMatrix<Scalar, IsRowMajor ? RowMajor : ColMajor, Index> tmp(other); - - // 2 - let's check whether there is enough allocated memory - Index nnz = tmp.nonZeros(); - Index start = m_outerStart==0 ? 0 : matrix.outerIndexPtr()[m_outerStart]; // starting position of the current block - Index end = m_matrix.outerIndexPtr()[m_outerStart+m_outerSize.value()]; // ending posiiton of the current block - Index block_size = end - start; // available room in the current block - Index tail_size = m_matrix.outerIndexPtr()[m_matrix.outerSize()] - end; - - Index free_size = m_matrix.isCompressed() - ? Index(matrix.data().allocatedSize()) + block_size - : block_size; - - if(nnz>free_size) - { - // realloc manually to reduce copies - typename SparseMatrixType::Storage newdata(m_matrix.data().allocatedSize() - block_size + nnz); - - std::memcpy(&newdata.value(0), &m_matrix.data().value(0), start*sizeof(Scalar)); - std::memcpy(&newdata.index(0), &m_matrix.data().index(0), start*sizeof(Index)); - - std::memcpy(&newdata.value(start), &tmp.data().value(0), nnz*sizeof(Scalar)); - std::memcpy(&newdata.index(start), &tmp.data().index(0), nnz*sizeof(Index)); - - std::memcpy(&newdata.value(start+nnz), &matrix.data().value(end), tail_size*sizeof(Scalar)); - std::memcpy(&newdata.index(start+nnz), &matrix.data().index(end), tail_size*sizeof(Index)); - - newdata.resize(m_matrix.outerIndexPtr()[m_matrix.outerSize()] - block_size + nnz); - - matrix.data().swap(newdata); - } - else - { - // no need to realloc, simply copy the tail at its respective position and insert tmp - matrix.data().resize(start + nnz + tail_size); - - std::memmove(&matrix.data().value(start+nnz), &matrix.data().value(end), tail_size*sizeof(Scalar)); - std::memmove(&matrix.data().index(start+nnz), &matrix.data().index(end), tail_size*sizeof(Index)); - - std::memcpy(&matrix.data().value(start), &tmp.data().value(0), nnz*sizeof(Scalar)); - std::memcpy(&matrix.data().index(start), &tmp.data().index(0), nnz*sizeof(Index)); - } - - // update innerNonZeros - if(!m_matrix.isCompressed()) - for(Index j=0; j<m_outerSize.value(); ++j) - matrix.innerNonZeroPtr()[m_outerStart+j] = tmp.innerVector(j).nonZeros(); - - // update outer index pointers - Index p = start; - for(Index k=0; k<m_outerSize.value(); ++k) - { - matrix.outerIndexPtr()[m_outerStart+k] = p; - p += tmp.innerVector(k).nonZeros(); - } - std::ptrdiff_t offset = nnz - block_size; - for(Index k = m_outerStart + m_outerSize.value(); k<=matrix.outerSize(); ++k) - { - matrix.outerIndexPtr()[k] += offset; - } - - return derived(); - } - - inline BlockType& operator=(const BlockType& other) - { - return operator=<BlockType>(other); - } - - inline const Scalar* valuePtr() const - { return m_matrix.valuePtr() + m_matrix.outerIndexPtr()[m_outerStart]; } - inline Scalar* valuePtr() - { return m_matrix.const_cast_derived().valuePtr() + m_matrix.outerIndexPtr()[m_outerStart]; } - - inline const Index* innerIndexPtr() const - { return m_matrix.innerIndexPtr() + m_matrix.outerIndexPtr()[m_outerStart]; } - inline Index* innerIndexPtr() - { return m_matrix.const_cast_derived().innerIndexPtr() + m_matrix.outerIndexPtr()[m_outerStart]; } - - inline const Index* outerIndexPtr() const - { return m_matrix.outerIndexPtr() + m_outerStart; } - inline Index* outerIndexPtr() - { return m_matrix.const_cast_derived().outerIndexPtr() + m_outerStart; } - - Index nonZeros() const - { - if(m_matrix.isCompressed()) - return std::size_t(m_matrix.outerIndexPtr()[m_outerStart+m_outerSize.value()]) - - std::size_t(m_matrix.outerIndexPtr()[m_outerStart]); - else if(m_outerSize.value()==0) - return 0; - else - return Map<const Matrix<Index,OuterSize,1> >(m_matrix.innerNonZeroPtr()+m_outerStart, m_outerSize.value()).sum(); - } - - const Scalar& lastCoeff() const - { - EIGEN_STATIC_ASSERT_VECTOR_ONLY(BlockImpl); - eigen_assert(nonZeros()>0); - if(m_matrix.isCompressed()) - return m_matrix.valuePtr()[m_matrix.outerIndexPtr()[m_outerStart+1]-1]; - else - return m_matrix.valuePtr()[m_matrix.outerIndexPtr()[m_outerStart]+m_matrix.innerNonZeroPtr()[m_outerStart]-1]; - } - - EIGEN_STRONG_INLINE Index rows() const { return IsRowMajor ? m_outerSize.value() : m_matrix.rows(); } - EIGEN_STRONG_INLINE Index cols() const { return IsRowMajor ? m_matrix.cols() : m_outerSize.value(); } - - protected: - - typename SparseMatrixType::Nested m_matrix; - Index m_outerStart; - const internal::variable_if_dynamic<Index, OuterSize> m_outerSize; - -}; - -//---------- - -/** \returns the \a outer -th column (resp. row) of the matrix \c *this if \c *this - * is col-major (resp. row-major). - */ -template<typename Derived> -typename SparseMatrixBase<Derived>::InnerVectorReturnType SparseMatrixBase<Derived>::innerVector(Index outer) -{ return InnerVectorReturnType(derived(), outer); } - -/** \returns the \a outer -th column (resp. row) of the matrix \c *this if \c *this - * is col-major (resp. row-major). Read-only. - */ -template<typename Derived> -const typename SparseMatrixBase<Derived>::ConstInnerVectorReturnType SparseMatrixBase<Derived>::innerVector(Index outer) const -{ return ConstInnerVectorReturnType(derived(), outer); } - -/** \returns the \a outer -th column (resp. row) of the matrix \c *this if \c *this - * is col-major (resp. row-major). - */ -template<typename Derived> -Block<Derived,Dynamic,Dynamic,true> SparseMatrixBase<Derived>::innerVectors(Index outerStart, Index outerSize) -{ - return Block<Derived,Dynamic,Dynamic,true>(derived(), - IsRowMajor ? outerStart : 0, IsRowMajor ? 0 : outerStart, - IsRowMajor ? outerSize : rows(), IsRowMajor ? cols() : outerSize); - -} - -/** \returns the \a outer -th column (resp. row) of the matrix \c *this if \c *this - * is col-major (resp. row-major). Read-only. - */ -template<typename Derived> -const Block<const Derived,Dynamic,Dynamic,true> SparseMatrixBase<Derived>::innerVectors(Index outerStart, Index outerSize) const -{ - return Block<const Derived,Dynamic,Dynamic,true>(derived(), - IsRowMajor ? outerStart : 0, IsRowMajor ? 0 : outerStart, - IsRowMajor ? outerSize : rows(), IsRowMajor ? cols() : outerSize); - -} - -/** Generic implementation of sparse Block expression. - * Real-only. - */ -template<typename XprType, int BlockRows, int BlockCols, bool InnerPanel> -class BlockImpl<XprType,BlockRows,BlockCols,InnerPanel,Sparse> - : public SparseMatrixBase<Block<XprType,BlockRows,BlockCols,InnerPanel> >, internal::no_assignment_operator -{ - typedef typename internal::remove_all<typename XprType::Nested>::type _MatrixTypeNested; - typedef Block<XprType, BlockRows, BlockCols, InnerPanel> BlockType; -public: - enum { IsRowMajor = internal::traits<BlockType>::IsRowMajor }; - EIGEN_SPARSE_PUBLIC_INTERFACE(BlockType) - - /** Column or Row constructor - */ - inline BlockImpl(const XprType& xpr, int i) - : m_matrix(xpr), - m_startRow( (BlockRows==1) && (BlockCols==XprType::ColsAtCompileTime) ? i : 0), - m_startCol( (BlockRows==XprType::RowsAtCompileTime) && (BlockCols==1) ? i : 0), - m_blockRows(xpr.rows()), - m_blockCols(xpr.cols()) - {} - - /** Dynamic-size constructor - */ - inline BlockImpl(const XprType& xpr, int startRow, int startCol, int blockRows, int blockCols) - : m_matrix(xpr), m_startRow(startRow), m_startCol(startCol), m_blockRows(blockRows), m_blockCols(blockCols) - {} - - inline int rows() const { return m_blockRows.value(); } - inline int cols() const { return m_blockCols.value(); } - - inline Scalar& coeffRef(int row, int col) - { - return m_matrix.const_cast_derived() - .coeffRef(row + m_startRow.value(), col + m_startCol.value()); - } - - inline const Scalar coeff(int row, int col) const - { - return m_matrix.coeff(row + m_startRow.value(), col + m_startCol.value()); - } - - inline Scalar& coeffRef(int index) - { - return m_matrix.const_cast_derived() - .coeffRef(m_startRow.value() + (RowsAtCompileTime == 1 ? 0 : index), - m_startCol.value() + (RowsAtCompileTime == 1 ? index : 0)); - } - - inline const Scalar coeff(int index) const - { - return m_matrix - .coeff(m_startRow.value() + (RowsAtCompileTime == 1 ? 0 : index), - m_startCol.value() + (RowsAtCompileTime == 1 ? index : 0)); - } - - inline const _MatrixTypeNested& nestedExpression() const { return m_matrix; } - - class InnerIterator : public _MatrixTypeNested::InnerIterator - { - typedef typename _MatrixTypeNested::InnerIterator Base; - const BlockType& m_block; - Index m_end; - public: - - EIGEN_STRONG_INLINE InnerIterator(const BlockType& block, Index outer) - : Base(block.derived().nestedExpression(), outer + (IsRowMajor ? block.m_startRow.value() : block.m_startCol.value())), - m_block(block), - m_end(IsRowMajor ? block.m_startCol.value()+block.m_blockCols.value() : block.m_startRow.value()+block.m_blockRows.value()) - { - while( (Base::operator bool()) && (Base::index() < (IsRowMajor ? m_block.m_startCol.value() : m_block.m_startRow.value())) ) - Base::operator++(); - } - - inline Index index() const { return Base::index() - (IsRowMajor ? m_block.m_startCol.value() : m_block.m_startRow.value()); } - inline Index outer() const { return Base::outer() - (IsRowMajor ? m_block.m_startRow.value() : m_block.m_startCol.value()); } - inline Index row() const { return Base::row() - m_block.m_startRow.value(); } - inline Index col() const { return Base::col() - m_block.m_startCol.value(); } - - inline operator bool() const { return Base::operator bool() && Base::index() < m_end; } - }; - class ReverseInnerIterator : public _MatrixTypeNested::ReverseInnerIterator - { - typedef typename _MatrixTypeNested::ReverseInnerIterator Base; - const BlockType& m_block; - Index m_begin; - public: - - EIGEN_STRONG_INLINE ReverseInnerIterator(const BlockType& block, Index outer) - : Base(block.derived().nestedExpression(), outer + (IsRowMajor ? block.m_startRow.value() : block.m_startCol.value())), - m_block(block), - m_begin(IsRowMajor ? block.m_startCol.value() : block.m_startRow.value()) - { - while( (Base::operator bool()) && (Base::index() >= (IsRowMajor ? m_block.m_startCol.value()+block.m_blockCols.value() : m_block.m_startRow.value()+block.m_blockRows.value())) ) - Base::operator--(); - } - - inline Index index() const { return Base::index() - (IsRowMajor ? m_block.m_startCol.value() : m_block.m_startRow.value()); } - inline Index outer() const { return Base::outer() - (IsRowMajor ? m_block.m_startRow.value() : m_block.m_startCol.value()); } - inline Index row() const { return Base::row() - m_block.m_startRow.value(); } - inline Index col() const { return Base::col() - m_block.m_startCol.value(); } - - inline operator bool() const { return Base::operator bool() && Base::index() >= m_begin; } - }; - protected: - friend class InnerIterator; - friend class ReverseInnerIterator; - - EIGEN_INHERIT_ASSIGNMENT_OPERATORS(BlockImpl) - - typename XprType::Nested m_matrix; - const internal::variable_if_dynamic<Index, XprType::RowsAtCompileTime == 1 ? 0 : Dynamic> m_startRow; - const internal::variable_if_dynamic<Index, XprType::ColsAtCompileTime == 1 ? 0 : Dynamic> m_startCol; - const internal::variable_if_dynamic<Index, RowsAtCompileTime> m_blockRows; - const internal::variable_if_dynamic<Index, ColsAtCompileTime> m_blockCols; - -}; - -} // end namespace Eigen - -#endif // EIGEN_SPARSE_BLOCK_H |