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Cleanup intitial reshape implementation:
- reshape -> reshaped - make it compatible with evaluators.
This commit is contained in:
Gael Guennebaud
parent
0e89baa5d8
commit
9036cda364
@ -471,9 +471,9 @@ using std::ptrdiff_t;
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#include "src/Core/Map.h"
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#include "src/Core/Ref.h"
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#include "src/Core/Block.h"
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#include "src/Core/Reshape.h"
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#include "src/Core/VectorBlock.h"
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#include "src/Core/IndexedView.h"
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#include "src/Core/Reshape.h"
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#include "src/Core/Transpose.h"
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#include "src/Core/DiagonalMatrix.h"
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#include "src/Core/Diagonal.h"
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@ -557,6 +557,20 @@ template<typename Derived> class DenseBase
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}
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EIGEN_DEVICE_FUNC void reverseInPlace();
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EIGEN_DEVICE_FUNC inline
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Reshaped<Derived> reshaped(Index nRows, Index nCols);
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EIGEN_DEVICE_FUNC inline
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const Reshaped<const Derived> reshaped(Index nRows, Index nCols) const;
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template<int ReshapeRows, int ReshapeCols>
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EIGEN_DEVICE_FUNC
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inline Reshaped<Derived, ReshapeRows, ReshapeCols> reshaped();
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template<int ReshapeRows, int ReshapeCols>
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EIGEN_DEVICE_FUNC
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inline const Reshaped<const Derived, ReshapeRows, ReshapeCols> reshaped() const;
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#define EIGEN_CURRENT_STORAGE_BASE_CLASS Eigen::DenseBase
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#define EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL
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#define EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(COND)
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@ -1,30 +1,30 @@
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// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
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// Copyright (C) 2006-2010 Benoit Jacob <jacob.benoit.1@gmail.com>
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// Copyright (C) 2008-2017 Gael Guennebaud <gael.guennebaud@inria.fr>
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// Copyright (C) 2014 yoco <peter.xiau@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla
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// Public License v. 2.0. If a copy of the MPL was not distributed
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// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef EIGEN_RESHAPE_H
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#define EIGEN_RESHAPE_H
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#ifndef EIGEN_RESHAPED_H
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#define EIGEN_RESHAPED_H
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namespace Eigen {
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/** \class Reshape
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/** \class Reshapedd
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* \ingroup Core_Module
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*
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* \brief Expression of a fixed-size or dynamic-size reshape
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*
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* \param XprType the type of the expression in which we are taking a reshape
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* \param ReshapeRows the number of rows of the reshape we are taking at compile time (optional)
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* \param ReshapeCols the number of columns of the reshape we are taking at compile time (optional)
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* \tparam XprType the type of the expression in which we are taking a reshape
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* \tparam Rows the number of rows of the reshape we are taking at compile time (optional)
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* \tparam Cols the number of columns of the reshape we are taking at compile time (optional)
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* \tparam Order
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*
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* This class represents an expression of either a fixed-size or dynamic-size reshape. It is the return
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* type of DenseBase::reshape(Index,Index) and DenseBase::reshape<int,int>() and
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* type of DenseBase::reshaped(Index,Index) and DenseBase::reshape<int,int>() and
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* most of the time this is the only way it is used.
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*
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* However, if you want to directly maniputate reshape expressions,
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@ -32,23 +32,23 @@ namespace Eigen {
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* will need to use this class.
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*
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* Here is an example illustrating the dynamic case:
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* \include class_Reshape.cpp
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* Output: \verbinclude class_Reshape.out
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* \include class_Reshaped.cpp
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* Output: \verbinclude class_Reshaped.out
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*
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* \note Even though this expression has dynamic size, in the case where \a XprType
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* has fixed size, this expression inherits a fixed maximal size which means that evaluating
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* it does not cause a dynamic memory allocation.
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*
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* Here is an example illustrating the fixed-size case:
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* \include class_FixedReshape.cpp
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* Output: \verbinclude class_FixedReshape.out
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* \include class_FixedReshaped.cpp
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* Output: \verbinclude class_FixedReshaped.out
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*
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* \sa DenseBase::reshape(Index,Index), DenseBase::reshape(), class VectorReshape
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* \sa DenseBase::reshaped(Index,Index), DenseBase::reshaped(), class VectorReshaped
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*/
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namespace internal {
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template<typename XprType, int ReshapeRows, int ReshapeCols>
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struct traits<Reshape<XprType, ReshapeRows, ReshapeCols> > : traits<XprType>
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template<typename XprType, int Rows, int Cols, int Order>
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struct traits<Reshaped<XprType, Rows, Cols, Order> > : traits<XprType>
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{
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typedef typename traits<XprType>::Scalar Scalar;
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typedef typename traits<XprType>::StorageKind StorageKind;
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@ -56,10 +56,10 @@ struct traits<Reshape<XprType, ReshapeRows, ReshapeCols> > : traits<XprType>
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enum{
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MatrixRows = traits<XprType>::RowsAtCompileTime,
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MatrixCols = traits<XprType>::ColsAtCompileTime,
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RowsAtCompileTime = ReshapeRows,
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ColsAtCompileTime = ReshapeCols,
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MaxRowsAtCompileTime = ReshapeRows,
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MaxColsAtCompileTime = ReshapeCols,
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RowsAtCompileTime = Rows,
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ColsAtCompileTime = Cols,
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MaxRowsAtCompileTime = Rows,
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MaxColsAtCompileTime = Cols,
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XprTypeIsRowMajor = (int(traits<XprType>::Flags) & RowMajorBit) != 0,
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IsRowMajor = (RowsAtCompileTime == 1 && ColsAtCompileTime != 1) ? 1
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: (ColsAtCompileTime == 1 && RowsAtCompileTime != 1) ? 0
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@ -75,50 +75,48 @@ struct traits<Reshape<XprType, ReshapeRows, ReshapeCols> > : traits<XprType>
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MaskPacketAccessBit = (InnerSize == Dynamic || (InnerSize % packet_traits<Scalar>::size) == 0)
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&& (InnerStrideAtCompileTime == 1)
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? PacketAccessBit : 0,
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MaskAlignedBit = ((OuterStrideAtCompileTime!=Dynamic) && (((OuterStrideAtCompileTime * int(sizeof(Scalar))) % 16) == 0)) ? AlignedBit : 0,
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//MaskAlignedBit = ((OuterStrideAtCompileTime!=Dynamic) && (((OuterStrideAtCompileTime * int(sizeof(Scalar))) % 16) == 0)) ? AlignedBit : 0,
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FlagsLinearAccessBit = (RowsAtCompileTime == 1 || ColsAtCompileTime == 1) ? LinearAccessBit : 0,
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FlagsLvalueBit = is_lvalue<XprType>::value ? LvalueBit : 0,
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FlagsRowMajorBit = IsRowMajor ? RowMajorBit : 0,
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Flags0 = traits<XprType>::Flags & ( (HereditaryBits & ~RowMajorBit) |
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MaskPacketAccessBit |
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MaskAlignedBit)
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Flags0 = traits<XprType>::Flags & ( (HereditaryBits & ~RowMajorBit) | MaskPacketAccessBit)
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& ~DirectAccessBit,
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Flags = (Flags0 | FlagsLinearAccessBit | FlagsLvalueBit | FlagsRowMajorBit)
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};
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};
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template<typename XprType, int ReshapeRows=Dynamic, int ReshapeCols=Dynamic,
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bool HasDirectAccess = internal::has_direct_access<XprType>::ret> class ReshapeImpl_dense;
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template<typename XprType, int Rows=Dynamic, int Cols=Dynamic, int Order = 0,
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bool HasDirectAccess = internal::has_direct_access<XprType>::ret> class ReshapedImpl_dense;
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} // end namespace internal
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template<typename XprType, int ReshapeRows, int ReshapeCols, typename StorageKind> class ReshapeImpl;
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template<typename XprType, int Rows, int Cols, int Order, typename StorageKind> class ReshapedImpl;
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template<typename XprType, int ReshapeRows, int ReshapeCols> class Reshape
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: public ReshapeImpl<XprType, ReshapeRows, ReshapeCols, typename internal::traits<XprType>::StorageKind>
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template<typename XprType, int Rows, int Cols, int Order> class Reshaped
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: public ReshapedImpl<XprType, Rows, Cols, Order, typename internal::traits<XprType>::StorageKind>
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{
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typedef ReshapeImpl<XprType, ReshapeRows, ReshapeCols, typename internal::traits<XprType>::StorageKind> Impl;
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typedef ReshapedImpl<XprType, Rows, Cols, Order, typename internal::traits<XprType>::StorageKind> Impl;
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public:
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//typedef typename Impl::Base Base;
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typedef Impl Base;
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EIGEN_GENERIC_PUBLIC_INTERFACE(Reshape)
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EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Reshape)
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EIGEN_GENERIC_PUBLIC_INTERFACE(Reshaped)
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EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Reshaped)
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/** Fixed-size constructor
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*/
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EIGEN_DEVICE_FUNC
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inline Reshape(XprType& xpr)
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inline Reshaped(XprType& xpr)
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: Impl(xpr)
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{
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EIGEN_STATIC_ASSERT(RowsAtCompileTime!=Dynamic && ColsAtCompileTime!=Dynamic,THIS_METHOD_IS_ONLY_FOR_FIXED_SIZE)
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eigen_assert(ReshapeRows * ReshapeCols == xpr.rows() * xpr.cols());
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eigen_assert(Rows * Cols == xpr.rows() * xpr.cols());
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}
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/** Dynamic-size constructor
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*/
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EIGEN_DEVICE_FUNC
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inline Reshape(XprType& xpr,
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inline Reshaped(XprType& xpr,
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Index reshapeRows, Index reshapeCols)
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: Impl(xpr, reshapeRows, reshapeCols)
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{
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@ -128,144 +126,56 @@ template<typename XprType, int ReshapeRows, int ReshapeCols> class Reshape
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}
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};
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// The generic default implementation for dense reshape simplu forward to the internal::ReshapeImpl_dense
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// The generic default implementation for dense reshape simplu forward to the internal::ReshapedImpl_dense
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// that must be specialized for direct and non-direct access...
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template<typename XprType, int ReshapeRows, int ReshapeCols>
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class ReshapeImpl<XprType, ReshapeRows, ReshapeCols, Dense>
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: public internal::ReshapeImpl_dense<XprType, ReshapeRows, ReshapeCols>
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template<typename XprType, int Rows, int Cols, int Order>
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class ReshapedImpl<XprType, Rows, Cols, Order, Dense>
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: public internal::ReshapedImpl_dense<XprType, Rows, Cols, Order>
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{
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typedef internal::ReshapeImpl_dense<XprType, ReshapeRows, ReshapeCols> Impl;
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typedef typename XprType::Index Index;
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typedef internal::ReshapedImpl_dense<XprType, Rows, Cols, Order> Impl;
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public:
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typedef Impl Base;
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EIGEN_INHERIT_ASSIGNMENT_OPERATORS(ReshapeImpl)
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EIGEN_DEVICE_FUNC inline ReshapeImpl(XprType& xpr) : Impl(xpr) {}
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EIGEN_DEVICE_FUNC inline ReshapeImpl(XprType& xpr, Index reshapeRows, Index reshapeCols)
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EIGEN_INHERIT_ASSIGNMENT_OPERATORS(ReshapedImpl)
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EIGEN_DEVICE_FUNC inline ReshapedImpl(XprType& xpr) : Impl(xpr) {}
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EIGEN_DEVICE_FUNC inline ReshapedImpl(XprType& xpr, Index reshapeRows, Index reshapeCols)
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: Impl(xpr, reshapeRows, reshapeCols) {}
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};
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namespace internal {
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/** \internal Internal implementation of dense Reshapes in the general case. */
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template<typename XprType, int ReshapeRows, int ReshapeCols, bool HasDirectAccess> class ReshapeImpl_dense
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: public internal::dense_xpr_base<Reshape<XprType, ReshapeRows, ReshapeCols> >::type
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/** \internal Internal implementation of dense Reshapeds in the general case. */
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template<typename XprType, int Rows, int Cols, int Order, bool HasDirectAccess> class ReshapedImpl_dense
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: public internal::dense_xpr_base<Reshaped<XprType, Rows, Cols, Order> >::type
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{
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typedef Reshape<XprType, ReshapeRows, ReshapeCols> ReshapeType;
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typedef Reshaped<XprType, Rows, Cols, Order> ReshapedType;
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public:
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typedef typename internal::dense_xpr_base<ReshapeType>::type Base;
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EIGEN_DENSE_PUBLIC_INTERFACE(ReshapeType)
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EIGEN_INHERIT_ASSIGNMENT_OPERATORS(ReshapeImpl_dense)
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typedef typename internal::dense_xpr_base<ReshapedType>::type Base;
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EIGEN_DENSE_PUBLIC_INTERFACE(ReshapedType)
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EIGEN_INHERIT_ASSIGNMENT_OPERATORS(ReshapedImpl_dense)
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typedef typename internal::ref_selector<XprType>::non_const_type MatrixTypeNested;
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typedef typename internal::remove_all<XprType>::type NestedExpression;
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class InnerIterator;
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/** Fixed-size constructor
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*/
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EIGEN_DEVICE_FUNC
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inline ReshapeImpl_dense(XprType& xpr)
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: m_xpr(xpr), m_reshapeRows(ReshapeRows), m_reshapeCols(ReshapeCols)
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inline ReshapedImpl_dense(XprType& xpr)
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: m_xpr(xpr), m_rows(Rows), m_cols(Cols)
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{}
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/** Dynamic-size constructor
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*/
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EIGEN_DEVICE_FUNC
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inline ReshapeImpl_dense(XprType& xpr,
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Index reshapeRows, Index reshapeCols)
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: m_xpr(xpr), m_reshapeRows(reshapeRows), m_reshapeCols(reshapeCols)
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inline ReshapedImpl_dense(XprType& xpr,
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Index nRows, Index nCols)
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: m_xpr(xpr), m_rows(nRows), m_cols(nCols)
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{}
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EIGEN_DEVICE_FUNC inline Index rows() const { return m_reshapeRows.value(); }
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EIGEN_DEVICE_FUNC inline Index cols() const { return m_reshapeCols.value(); }
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typedef std::pair<Index, Index> RowCol;
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inline RowCol index_remap(Index rowId, Index colId) const {
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const Index nth_elem_idx = colId * m_reshapeRows.value() + rowId;
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const Index actual_col = nth_elem_idx / m_xpr.rows();
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const Index actual_row = nth_elem_idx % m_xpr.rows();
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return RowCol(actual_row, actual_col);
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}
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EIGEN_DEVICE_FUNC
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inline Scalar& coeffRef(Index rowId, Index colId)
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{
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EIGEN_STATIC_ASSERT_LVALUE(XprType)
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const RowCol row_col = index_remap(rowId, colId);
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return m_xpr.const_cast_derived().coeffRef(row_col.first, row_col.second);
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}
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EIGEN_DEVICE_FUNC
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inline const Scalar& coeffRef(Index rowId, Index colId) const
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{
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const RowCol row_col = index_remap(rowId, colId);
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return m_xpr.derived().coeffRef(row_col.first, row_col.second);
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}
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EIGEN_DEVICE_FUNC
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EIGEN_STRONG_INLINE const CoeffReturnType coeff(Index rowId, Index colId) const
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{
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const RowCol row_col = index_remap(rowId, colId);
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return m_xpr.coeff(row_col.first, row_col.second);
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}
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EIGEN_DEVICE_FUNC
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inline Scalar& coeffRef(Index index)
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{
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EIGEN_STATIC_ASSERT_LVALUE(XprType)
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const RowCol row_col = index_remap(RowsAtCompileTime == 1 ? 0 : index,
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RowsAtCompileTime == 1 ? index : 0);
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return m_xpr.const_cast_derived().coeffRef(row_col.first, row_col.second);
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}
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EIGEN_DEVICE_FUNC
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inline const Scalar& coeffRef(Index index) const
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{
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const RowCol row_col = index_remap(RowsAtCompileTime == 1 ? 0 : index,
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RowsAtCompileTime == 1 ? index : 0);
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return m_xpr.const_cast_derived().coeffRef(row_col.first, row_col.second);
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}
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EIGEN_DEVICE_FUNC
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inline const CoeffReturnType coeff(Index index) const
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{
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const RowCol row_col = index_remap(RowsAtCompileTime == 1 ? 0 : index,
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RowsAtCompileTime == 1 ? index : 0);
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return m_xpr.coeff(row_col.first, row_col.second);
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}
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EIGEN_DEVICE_FUNC
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template<int LoadMode>
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inline PacketScalar packet(Index rowId, Index colId) const
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{
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const RowCol row_col = index_remap(rowId, colId);
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return m_xpr.template packet<Unaligned>(row_col.first, row_col.second);
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}
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template<int LoadMode>
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inline void writePacket(Index rowId, Index colId, const PacketScalar& val)
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{
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const RowCol row_col = index_remap(rowId, colId);
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m_xpr.const_cast_derived().template writePacket<Unaligned>
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(row_col.first, row_col.second, val);
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}
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template<int LoadMode>
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inline PacketScalar packet(Index index) const
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{
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const RowCol row_col = index_remap(RowsAtCompileTime == 1 ? 0 : index,
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RowsAtCompileTime == 1 ? index : 0);
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return m_xpr.template packet<Unaligned>(row_col.first, row_col.second);
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}
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template<int LoadMode>
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inline void writePacket(Index index, const PacketScalar& val)
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{
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const RowCol row_col = index_remap(RowsAtCompileTime == 1 ? 0 : index,
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RowsAtCompileTime == 1 ? index : 0);
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return m_xpr.template packet<Unaligned>(row_col.first, row_col.second, val);
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}
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EIGEN_DEVICE_FUNC Index rows() const { return m_rows; }
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EIGEN_DEVICE_FUNC Index cols() const { return m_cols; }
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#ifdef EIGEN_PARSED_BY_DOXYGEN
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/** \sa MapBase::data() */
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@ -274,40 +184,168 @@ template<typename XprType, int ReshapeRows, int ReshapeCols, bool HasDirectAcces
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EIGEN_DEVICE_FUNC inline Index outerStride() const;
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#endif
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/** \returns the nested expression */
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EIGEN_DEVICE_FUNC
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const typename internal::remove_all<typename XprType::Nested>::type& nestedExpression() const
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{
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return m_xpr;
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}
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const typename internal::remove_all<XprType>::type&
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nestedExpression() const { return m_xpr; }
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/** \returns the nested expression */
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EIGEN_DEVICE_FUNC
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typename internal::remove_reference<XprType>::type&
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nestedExpression() { return m_xpr.const_cast_derived(); }
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protected:
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const typename XprType::Nested m_xpr;
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const internal::variable_if_dynamic<Index, RowsAtCompileTime> m_reshapeRows;
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const internal::variable_if_dynamic<Index, ColsAtCompileTime> m_reshapeCols;
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MatrixTypeNested m_xpr;
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const internal::variable_if_dynamic<Index, RowsAtCompileTime> m_rows;
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const internal::variable_if_dynamic<Index, ColsAtCompileTime> m_cols;
|
||||
};
|
||||
|
||||
///** \internal Internal implementation of dense Reshapes in the direct access case.*/
|
||||
//template<typename XprType, int ReshapeRows, int ReshapeCols>
|
||||
//class ReshapeImpl_dense<XprType,ReshapeRows,ReshapeCols, true>
|
||||
// : public MapBase<Reshape<XprType, ReshapeRows, ReshapeCols> >
|
||||
|
||||
template<typename ArgType, int Rows, int Cols, int Order>
|
||||
struct unary_evaluator<Reshaped<ArgType, Rows, Cols, Order>, IndexBased>
|
||||
: evaluator_base<Reshaped<ArgType, Rows, Cols, Order> >
|
||||
{
|
||||
typedef Reshaped<ArgType, Rows, Cols, Order> XprType;
|
||||
|
||||
enum {
|
||||
CoeffReadCost = evaluator<ArgType>::CoeffReadCost /* TODO + cost of index computations */,
|
||||
|
||||
Flags = (evaluator<ArgType>::Flags & (HereditaryBits /*| LinearAccessBit | DirectAccessBit*/)),
|
||||
|
||||
Alignment = 0
|
||||
};
|
||||
|
||||
EIGEN_DEVICE_FUNC explicit unary_evaluator(const XprType& xpr) : m_argImpl(xpr.nestedExpression()), m_xpr(xpr)
|
||||
{
|
||||
EIGEN_INTERNAL_CHECK_COST_VALUE(CoeffReadCost);
|
||||
}
|
||||
|
||||
typedef typename XprType::Scalar Scalar;
|
||||
typedef typename XprType::CoeffReturnType CoeffReturnType;
|
||||
|
||||
typedef std::pair<Index, Index> RowCol;
|
||||
|
||||
inline RowCol index_remap(Index rowId, Index colId) const {
|
||||
const Index nth_elem_idx = colId * m_xpr.rows() + rowId;
|
||||
const Index actual_col = nth_elem_idx / m_xpr.nestedExpression().rows();
|
||||
const Index actual_row = nth_elem_idx % m_xpr.nestedExpression().rows();
|
||||
return RowCol(actual_row, actual_col);
|
||||
}
|
||||
|
||||
EIGEN_DEVICE_FUNC
|
||||
inline Scalar& coeffRef(Index rowId, Index colId)
|
||||
{
|
||||
EIGEN_STATIC_ASSERT_LVALUE(XprType)
|
||||
const RowCol row_col = index_remap(rowId, colId);
|
||||
return m_argImpl.coeffRef(row_col.first, row_col.second);
|
||||
}
|
||||
|
||||
EIGEN_DEVICE_FUNC
|
||||
inline const Scalar& coeffRef(Index rowId, Index colId) const
|
||||
{
|
||||
const RowCol row_col = index_remap(rowId, colId);
|
||||
return m_argImpl.coeffRef(row_col.first, row_col.second);
|
||||
}
|
||||
|
||||
EIGEN_DEVICE_FUNC
|
||||
EIGEN_STRONG_INLINE const CoeffReturnType coeff(Index rowId, Index colId) const
|
||||
{
|
||||
const RowCol row_col = index_remap(rowId, colId);
|
||||
return m_argImpl.coeff(row_col.first, row_col.second);
|
||||
}
|
||||
|
||||
EIGEN_DEVICE_FUNC
|
||||
inline Scalar& coeffRef(Index index)
|
||||
{
|
||||
EIGEN_STATIC_ASSERT_LVALUE(XprType)
|
||||
const RowCol row_col = index_remap(Rows == 1 ? 0 : index,
|
||||
Rows == 1 ? index : 0);
|
||||
return m_argImpl.coeffRef(row_col.first, row_col.second);
|
||||
|
||||
}
|
||||
|
||||
EIGEN_DEVICE_FUNC
|
||||
inline const Scalar& coeffRef(Index index) const
|
||||
{
|
||||
const RowCol row_col = index_remap(Rows == 1 ? 0 : index,
|
||||
Rows == 1 ? index : 0);
|
||||
return m_argImpl.coeffRef(row_col.first, row_col.second);
|
||||
}
|
||||
|
||||
EIGEN_DEVICE_FUNC
|
||||
inline const CoeffReturnType coeff(Index index) const
|
||||
{
|
||||
const RowCol row_col = index_remap(Rows == 1 ? 0 : index,
|
||||
Rows == 1 ? index : 0);
|
||||
return m_argImpl.coeff(row_col.first, row_col.second);
|
||||
}
|
||||
#if 0
|
||||
EIGEN_DEVICE_FUNC
|
||||
template<int LoadMode>
|
||||
inline PacketScalar packet(Index rowId, Index colId) const
|
||||
{
|
||||
const RowCol row_col = index_remap(rowId, colId);
|
||||
return m_argImpl.template packet<Unaligned>(row_col.first, row_col.second);
|
||||
|
||||
}
|
||||
|
||||
template<int LoadMode>
|
||||
EIGEN_DEVICE_FUNC
|
||||
inline void writePacket(Index rowId, Index colId, const PacketScalar& val)
|
||||
{
|
||||
const RowCol row_col = index_remap(rowId, colId);
|
||||
m_argImpl.const_cast_derived().template writePacket<Unaligned>
|
||||
(row_col.first, row_col.second, val);
|
||||
}
|
||||
|
||||
template<int LoadMode>
|
||||
EIGEN_DEVICE_FUNC
|
||||
inline PacketScalar packet(Index index) const
|
||||
{
|
||||
const RowCol row_col = index_remap(RowsAtCompileTime == 1 ? 0 : index,
|
||||
RowsAtCompileTime == 1 ? index : 0);
|
||||
return m_argImpl.template packet<Unaligned>(row_col.first, row_col.second);
|
||||
}
|
||||
|
||||
template<int LoadMode>
|
||||
EIGEN_DEVICE_FUNC
|
||||
inline void writePacket(Index index, const PacketScalar& val)
|
||||
{
|
||||
const RowCol row_col = index_remap(RowsAtCompileTime == 1 ? 0 : index,
|
||||
RowsAtCompileTime == 1 ? index : 0);
|
||||
return m_argImpl.template packet<Unaligned>(row_col.first, row_col.second, val);
|
||||
}
|
||||
#endif
|
||||
protected:
|
||||
|
||||
evaluator<ArgType> m_argImpl;
|
||||
const XprType& m_xpr;
|
||||
|
||||
};
|
||||
|
||||
|
||||
///** \internal Internal implementation of dense Reshapeds in the direct access case.*/
|
||||
//template<typename XprType, int Rows, int Cols, int Order>
|
||||
//class ReshapedImpl_dense<XprType,ReshapedRows,ReshapedCols, true>
|
||||
// : public MapBase<Reshaped<XprType, Rows, Cols, Order> >
|
||||
//{
|
||||
// typedef Reshape<XprType, ReshapeRows, ReshapeCols> ReshapeType;
|
||||
// typedef Reshaped<XprType, Rows, Cols, Order> ReshapedType;
|
||||
// public:
|
||||
//
|
||||
// typedef MapBase<ReshapeType> Base;
|
||||
// EIGEN_DENSE_PUBLIC_INTERFACE(ReshapeType)
|
||||
// EIGEN_INHERIT_ASSIGNMENT_OPERATORS(ReshapeImpl_dense)
|
||||
// typedef MapBase<ReshapedType> Base;
|
||||
// EIGEN_DENSE_PUBLIC_INTERFACE(ReshapedType)
|
||||
// EIGEN_INHERIT_ASSIGNMENT_OPERATORS(ReshapedImpl_dense)
|
||||
//
|
||||
// /** Column or Row constructor
|
||||
// */
|
||||
// EIGEN_DEVICE_FUNC
|
||||
// inline ReshapeImpl_dense(XprType& xpr, Index i)
|
||||
// inline ReshapedImpl_dense(XprType& xpr, Index i)
|
||||
// : Base(internal::const_cast_ptr(&xpr.coeffRef(
|
||||
// (ReshapeRows==1) && (ReshapeCols==XprType::ColsAtCompileTime) ? i : 0,
|
||||
// (ReshapeRows==XprType::RowsAtCompileTime) && (ReshapeCols==1) ? i : 0)),
|
||||
// ReshapeRows==1 ? 1 : xpr.rows(),
|
||||
// ReshapeCols==1 ? 1 : xpr.cols()),
|
||||
// (ReshapedRows==1) && (ReshapedCols==XprType::ColsAtCompileTime) ? i : 0,
|
||||
// (ReshapedRows==XprType::RowsAtCompileTime) && (ReshapedCols==1) ? i : 0)),
|
||||
// ReshapedRows==1 ? 1 : xpr.rows(),
|
||||
// ReshapedCols==1 ? 1 : xpr.cols()),
|
||||
// m_xpr(xpr)
|
||||
// {
|
||||
// init();
|
||||
@ -316,7 +354,7 @@ template<typename XprType, int ReshapeRows, int ReshapeCols, bool HasDirectAcces
|
||||
// /** Fixed-size constructor
|
||||
// */
|
||||
// EIGEN_DEVICE_FUNC
|
||||
// inline ReshapeImpl_dense(XprType& xpr)
|
||||
// inline ReshapedImpl_dense(XprType& xpr)
|
||||
// : Base(internal::const_cast_ptr(&xpr.coeffRef(0, 0))), m_xpr(xpr)
|
||||
// {
|
||||
// init();
|
||||
@ -325,7 +363,7 @@ template<typename XprType, int ReshapeRows, int ReshapeCols, bool HasDirectAcces
|
||||
// /** Dynamic-size constructor
|
||||
// */
|
||||
// EIGEN_DEVICE_FUNC
|
||||
// inline ReshapeImpl_dense(XprType& xpr,
|
||||
// inline ReshapedImpl_dense(XprType& xpr,
|
||||
// Index reshapeRows, Index reshapeCols)
|
||||
// : Base(internal::const_cast_ptr(&xpr.coeffRef(0, 0)), reshapeRows, reshapeCols),
|
||||
// m_xpr(xpr)
|
||||
@ -343,7 +381,7 @@ template<typename XprType, int ReshapeRows, int ReshapeCols, bool HasDirectAcces
|
||||
// /** \sa MapBase::innerStride() */
|
||||
// inline Index innerStride() const
|
||||
// {
|
||||
// return internal::traits<ReshapeType>::HasSameStorageOrderAsXprType
|
||||
// return internal::traits<ReshapedType>::HasSameStorageOrderAsXprType
|
||||
// ? m_xpr.innerStride()
|
||||
// : m_xpr.outerStride();
|
||||
// }
|
||||
@ -364,7 +402,7 @@ template<typename XprType, int ReshapeRows, int ReshapeCols, bool HasDirectAcces
|
||||
// #ifndef EIGEN_PARSED_BY_DOXYGEN
|
||||
// /** \internal used by allowAligned() */
|
||||
// EIGEN_DEVICE_FUNC
|
||||
// inline ReshapeImpl_dense(XprType& xpr, const Scalar* data, Index reshapeRows, Index reshapeCols)
|
||||
// inline ReshapedImpl_dense(XprType& xpr, const Scalar* data, Index reshapeRows, Index reshapeCols)
|
||||
// : Base(data, reshapeRows, reshapeCols), m_xpr(xpr)
|
||||
// {
|
||||
// init();
|
||||
@ -375,7 +413,7 @@ template<typename XprType, int ReshapeRows, int ReshapeCols, bool HasDirectAcces
|
||||
// EIGEN_DEVICE_FUNC
|
||||
// void init()
|
||||
// {
|
||||
// m_outerStride = internal::traits<ReshapeType>::HasSameStorageOrderAsXprType
|
||||
// m_outerStride = internal::traits<ReshapedType>::HasSameStorageOrderAsXprType
|
||||
// ? m_xpr.outerStride()
|
||||
// : m_xpr.innerStride();
|
||||
// }
|
||||
@ -386,6 +424,65 @@ template<typename XprType, int ReshapeRows, int ReshapeCols, bool HasDirectAcces
|
||||
|
||||
} // end namespace internal
|
||||
|
||||
/** \returns a dynamic-size expression of a reshape in *this.
|
||||
*
|
||||
* \param reshapeRows the number of rows in the reshape
|
||||
* \param reshapeCols the number of columns in the reshape
|
||||
*
|
||||
* Example: \include MatrixBase_reshape_int_int.cpp
|
||||
* Output: \verbinclude MatrixBase_reshape_int_int.out
|
||||
*
|
||||
* \note Even though the returned expression has dynamic size, in the case
|
||||
* when it is applied to a fixed-size matrix, it inherits a fixed maximal size,
|
||||
* which means that evaluating it does not cause a dynamic memory allocation.
|
||||
*
|
||||
* \sa class Reshape, reshaped()
|
||||
*/
|
||||
template<typename Derived>
|
||||
EIGEN_DEVICE_FUNC
|
||||
inline Reshaped<Derived> DenseBase<Derived>::reshaped(Index reshapeRows, Index reshapeCols)
|
||||
{
|
||||
return Reshaped<Derived>(derived(), reshapeRows, reshapeCols);
|
||||
}
|
||||
|
||||
/** This is the const version of reshaped(Index,Index). */
|
||||
template<typename Derived>
|
||||
EIGEN_DEVICE_FUNC
|
||||
inline const Reshaped<const Derived> DenseBase<Derived>::reshaped(Index reshapeRows, Index reshapeCols) const
|
||||
{
|
||||
return Reshaped<const Derived>(derived(), reshapeRows, reshapeCols);
|
||||
}
|
||||
|
||||
/** \returns a fixed-size expression of a reshape in *this.
|
||||
*
|
||||
* The template parameters \a ReshapeRows and \a ReshapeCols are the number of
|
||||
* rows and columns in the reshape.
|
||||
*
|
||||
* Example: \include MatrixBase_reshape.cpp
|
||||
* Output: \verbinclude MatrixBase_reshape.out
|
||||
*
|
||||
* \note since reshape is a templated member, the keyword template has to be used
|
||||
* if the matrix type is also a template parameter: \code m.template reshape<3,3>(); \endcode
|
||||
*
|
||||
* \sa class Reshape, reshaped(Index,Index)
|
||||
*/
|
||||
template<typename Derived>
|
||||
template<int ReshapeRows, int ReshapeCols>
|
||||
EIGEN_DEVICE_FUNC
|
||||
inline Reshaped<Derived, ReshapeRows, ReshapeCols> DenseBase<Derived>::reshaped()
|
||||
{
|
||||
return Reshaped<Derived, ReshapeRows, ReshapeCols>(derived());
|
||||
}
|
||||
|
||||
/** This is the const version of reshape<>(Index, Index). */
|
||||
template<typename Derived>
|
||||
template<int ReshapeRows, int ReshapeCols>
|
||||
EIGEN_DEVICE_FUNC
|
||||
inline const Reshaped<const Derived, ReshapeRows, ReshapeCols> DenseBase<Derived>::reshaped() const
|
||||
{
|
||||
return Reshaped<const Derived, ReshapeRows, ReshapeCols>(derived());
|
||||
}
|
||||
|
||||
} // end namespace Eigen
|
||||
|
||||
#endif // EIGEN_RESHAPE_H
|
||||
#endif // EIGEN_RESHAPED_H
|
||||
|
||||
@ -84,7 +84,7 @@ template<typename ExpressionType> class SwapWrapper;
|
||||
|
||||
template<typename XprType, int BlockRows=Dynamic, int BlockCols=Dynamic, bool InnerPanel = false> class Block;
|
||||
template<typename XprType, typename RowIndices, typename ColIndices> class IndexedView;
|
||||
template<typename XprType, int BlockRows=Dynamic, int BlockCols=Dynamic> class Reshape;
|
||||
template<typename XprType, int Rows=Dynamic, int Cols=Dynamic, int Order=0> class Reshaped;
|
||||
|
||||
template<typename MatrixType, int Size=Dynamic> class VectorBlock;
|
||||
template<typename MatrixType> class Transpose;
|
||||
|
||||
@ -1354,59 +1354,3 @@ inline typename ConstFixedSegmentReturnType<N>::Type tail(Index n = N) const
|
||||
EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived)
|
||||
return typename ConstFixedSegmentReturnType<N>::Type(derived(), size() - n);
|
||||
}
|
||||
|
||||
/** \returns a dynamic-size expression of a reshape in *this.
|
||||
*
|
||||
* \param reshapeRows the number of rows in the reshape
|
||||
* \param reshapeCols the number of columns in the reshape
|
||||
*
|
||||
* Example: \include MatrixBase_reshape_int_int.cpp
|
||||
* Output: \verbinclude MatrixBase_reshape_int_int.out
|
||||
*
|
||||
* \note Even though the returned expression has dynamic size, in the case
|
||||
* when it is applied to a fixed-size matrix, it inherits a fixed maximal size,
|
||||
* which means that evaluating it does not cause a dynamic memory allocation.
|
||||
*
|
||||
* \sa class Reshape, reshape()
|
||||
*/
|
||||
EIGEN_DEVICE_FUNC
|
||||
inline Reshape<Derived> reshape(Index reshapeRows, Index reshapeCols)
|
||||
{
|
||||
return Reshape<Derived>(derived(), reshapeRows, reshapeCols);
|
||||
}
|
||||
|
||||
/** This is the const version of reshape(Index,Index). */
|
||||
EIGEN_DEVICE_FUNC
|
||||
inline const Reshape<const Derived> reshape(Index reshapeRows, Index reshapeCols) const
|
||||
{
|
||||
return Reshape<const Derived>(derived(), reshapeRows, reshapeCols);
|
||||
}
|
||||
|
||||
/** \returns a fixed-size expression of a reshape in *this.
|
||||
*
|
||||
* The template parameters \a ReshapeRows and \a ReshapeCols are the number of
|
||||
* rows and columns in the reshape.
|
||||
*
|
||||
* Example: \include MatrixBase_reshape.cpp
|
||||
* Output: \verbinclude MatrixBase_reshape.out
|
||||
*
|
||||
* \note since reshape is a templated member, the keyword template has to be used
|
||||
* if the matrix type is also a template parameter: \code m.template reshape<3,3>(); \endcode
|
||||
*
|
||||
* \sa class Reshape, reshape(Index,Index)
|
||||
*/
|
||||
template<int ReshapeRows, int ReshapeCols>
|
||||
EIGEN_DEVICE_FUNC
|
||||
inline Reshape<Derived, ReshapeRows, ReshapeCols> reshape()
|
||||
{
|
||||
return Reshape<Derived, ReshapeRows, ReshapeCols>(derived());
|
||||
}
|
||||
|
||||
/** This is the const version of reshape<>(Index, Index). */
|
||||
template<int ReshapeRows, int ReshapeCols>
|
||||
EIGEN_DEVICE_FUNC
|
||||
inline const Reshape<const Derived, ReshapeRows, ReshapeCols> reshape() const
|
||||
{
|
||||
return Reshape<const Derived, ReshapeRows, ReshapeCols>(derived());
|
||||
}
|
||||
|
||||
|
||||
@ -160,10 +160,10 @@ endif()
|
||||
ei_add_test(redux)
|
||||
ei_add_test(visitor)
|
||||
ei_add_test(block)
|
||||
ei_add_test(reshape)
|
||||
ei_add_test(corners)
|
||||
ei_add_test(symbolic_index)
|
||||
ei_add_test(indexed_view)
|
||||
ei_add_test(reshape)
|
||||
ei_add_test(swap)
|
||||
ei_add_test(resize)
|
||||
ei_add_test(conservative_resize)
|
||||
|
||||
@ -15,35 +15,36 @@ using Eigen::MatrixXi;
|
||||
// just test a 4x4 matrix, enumerate all combination manually,
|
||||
// so I don't have to do template-meta-programming here.
|
||||
template <typename MatType>
|
||||
void reshape_all_size(MatType m) {
|
||||
void reshape_all_size(MatType m)
|
||||
{
|
||||
typedef Eigen::Map<MatrixXi> MapMat;
|
||||
// dynamic
|
||||
VERIFY_IS_EQUAL((m.template reshape( 1, 16)), MapMat(m.data(), 1, 16));
|
||||
VERIFY_IS_EQUAL((m.template reshape( 2, 8)), MapMat(m.data(), 2, 8));
|
||||
VERIFY_IS_EQUAL((m.template reshape( 4, 4)), MapMat(m.data(), 4, 4));
|
||||
VERIFY_IS_EQUAL((m.template reshape( 8, 2)), MapMat(m.data(), 8, 2));
|
||||
VERIFY_IS_EQUAL((m.template reshape(16, 1)), MapMat(m.data(), 16, 1));
|
||||
VERIFY_IS_EQUAL((m.reshaped( 1, 16)), MapMat(m.data(), 1, 16));
|
||||
VERIFY_IS_EQUAL((m.reshaped( 2, 8)), MapMat(m.data(), 2, 8));
|
||||
VERIFY_IS_EQUAL((m.reshaped( 4, 4)), MapMat(m.data(), 4, 4));
|
||||
VERIFY_IS_EQUAL((m.reshaped( 8, 2)), MapMat(m.data(), 8, 2));
|
||||
VERIFY_IS_EQUAL((m.reshaped(16, 1)), MapMat(m.data(), 16, 1));
|
||||
|
||||
// static
|
||||
VERIFY_IS_EQUAL((m.template reshape< 1, 16>()), MapMat(m.data(), 1, 16));
|
||||
VERIFY_IS_EQUAL((m.template reshape< 2, 8>()), MapMat(m.data(), 2, 8));
|
||||
VERIFY_IS_EQUAL((m.template reshape< 4, 4>()), MapMat(m.data(), 4, 4));
|
||||
VERIFY_IS_EQUAL((m.template reshape< 8, 2>()), MapMat(m.data(), 8, 2));
|
||||
VERIFY_IS_EQUAL((m.template reshape<16, 1>()), MapMat(m.data(), 16, 1));
|
||||
VERIFY_IS_EQUAL((m.template reshaped< 1, 16>()), MapMat(m.data(), 1, 16));
|
||||
VERIFY_IS_EQUAL((m.template reshaped< 2, 8>()), MapMat(m.data(), 2, 8));
|
||||
VERIFY_IS_EQUAL((m.template reshaped< 4, 4>()), MapMat(m.data(), 4, 4));
|
||||
VERIFY_IS_EQUAL((m.template reshaped< 8, 2>()), MapMat(m.data(), 8, 2));
|
||||
VERIFY_IS_EQUAL((m.template reshaped<16, 1>()), MapMat(m.data(), 16, 1));
|
||||
|
||||
// reshape chain
|
||||
VERIFY_IS_EQUAL(
|
||||
(m
|
||||
.template reshape( 1, 16)
|
||||
.template reshape< 2, 8>()
|
||||
.template reshape(16, 1)
|
||||
.template reshape< 8, 2>()
|
||||
.template reshape( 2, 8)
|
||||
.template reshape< 1, 16>()
|
||||
.template reshape( 4, 4)
|
||||
.template reshape<16, 1>()
|
||||
.template reshape( 8, 2)
|
||||
.template reshape< 4, 4>()
|
||||
. reshaped( 1, 16)
|
||||
.template reshaped< 2, 8>()
|
||||
. reshaped(16, 1)
|
||||
.template reshaped< 8, 2>()
|
||||
. reshaped( 2, 8)
|
||||
.template reshaped< 1, 16>()
|
||||
. reshaped( 4, 4)
|
||||
.template reshaped<16, 1>()
|
||||
. reshaped( 8, 2)
|
||||
.template reshaped< 4, 4>()
|
||||
),
|
||||
MapMat(m.data(), 4, 4)
|
||||
);
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user