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Renamed allowAligned() => forceAligned() and added the constants ForceAligned

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and AsRequested for the PacketAccess parameter of MapBase. Updated respective
documentation.
This commit is contained in:
Gael Guennebaud
2008-08-09 21:57:50 +00:00
parent b13148c358
commit 55e8d670ce
5 changed files with 44 additions and 30 deletions
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35
Eigen/src/Core/MapBase.h
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@@ -26,12 +26,18 @@
#ifndef EIGEN_MAPBASE_H
#define EIGEN_MAPBASE_H
/** \internal
*
* \class MapBase
/** \class MapBase
*
* \brief Base class for Map and Block expression with direct access
*
* Expression classes inheriting MapBase must define the constant \c PacketAccess,
* and type \c AlignedDerivedType in their respective ei_traits<> specialization structure.
* The value of \c PacketAccess can be either:
* - \b ForceAligned which enforces both aligned loads and stores
* - \b AsRequested which is the default behavior
* The type \c AlignedDerivedType should correspond to the equivalent expression type
* with \c PacketAccess being \c ForceAligned.
*
* \sa class Map, class Block
*/
template<typename Derived> class MapBase
@@ -57,7 +63,10 @@ template<typename Derived> class MapBase
inline int cols() const { return m_cols.value(); }
inline int stride() const { return derived().stride(); }
AlignedDerivedType allowAligned() { return derived().allowAligned(); }
/** \Returns an expression equivalent to \c *this but having the \c PacketAccess constant
* set to \c ForceAligned. Must be reimplemented by the derived class. */
AlignedDerivedType forceAligned() { return derived().forceAligned(); }
inline const Scalar& coeff(int row, int col) const
{
@@ -92,7 +101,7 @@ template<typename Derived> class MapBase
template<int LoadMode>
inline PacketScalar packet(int row, int col) const
{
return ei_ploadt<Scalar, int(PacketAccess) == Aligned ? Aligned : LoadMode>
return ei_ploadt<Scalar, int(PacketAccess) == ForceAligned ? Aligned : LoadMode>
(m_data + (IsRowMajor ? col + row * stride()
: row + col * stride()));
}
@@ -100,13 +109,13 @@ template<typename Derived> class MapBase
template<int LoadMode>
inline PacketScalar packet(int index) const
{
return ei_ploadt<Scalar, int(PacketAccess) == Aligned ? Aligned : LoadMode>(m_data + index);
return ei_ploadt<Scalar, int(PacketAccess) == ForceAligned ? Aligned : LoadMode>(m_data + index);
}
template<int StoreMode>
inline void writePacket(int row, int col, const PacketScalar& x)
{
ei_pstoret<Scalar, PacketScalar, int(PacketAccess) == Aligned ? Aligned : StoreMode>
ei_pstoret<Scalar, PacketScalar, int(PacketAccess) == ForceAligned ? Aligned : StoreMode>
(const_cast<Scalar*>(m_data) + (IsRowMajor ? col + row * stride()
: row + col * stride()), x);
}
@@ -114,7 +123,7 @@ template<typename Derived> class MapBase
template<int StoreMode>
inline void writePacket(int index, const PacketScalar& x)
{
ei_pstoret<Scalar, PacketScalar, int(PacketAccess) == Aligned ? Aligned : StoreMode>
ei_pstoret<Scalar, PacketScalar, int(PacketAccess) == ForceAligned ? Aligned : StoreMode>
(const_cast<Scalar*>(m_data) + index, x);
}
@@ -142,21 +151,19 @@ template<typename Derived> class MapBase
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(MapBase)
// EIGEN_INHERIT_ASSIGNMENT_OPERATOR(MapBase, =)
template<typename OtherDerived>
Derived& operator+=(const MatrixBase<OtherDerived>& other)
{ return derived() = allowAligned() + other; }
{ return derived() = forceAligned() + other; }
template<typename OtherDerived>
Derived& operator-=(const MatrixBase<OtherDerived>& other)
{ return derived() = allowAligned() - other; }
{ return derived() = forceAligned() - other; }
Derived& operator*=(const Scalar& other)
{ return derived() = allowAligned() * other; }
{ return derived() = forceAligned() * other; }
Derived& operator/=(const Scalar& other)
{ return derived() = allowAligned() / other; }
{ return derived() = forceAligned() / other; }
protected:
const Scalar* __restrict__ m_data;