//---------------------------------------------------------------------------//
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// Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com>
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//
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// Distributed under the Boost Software License, Version 1.0
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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// See http://boostorg.github.com/compute for more information.
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//---------------------------------------------------------------------------//
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#ifndef BOOST_COMPUTE_INTEROP_EIGEN_EIGEN_HPP
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#define BOOST_COMPUTE_INTEROP_EIGEN_EIGEN_HPP
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#include <Eigen/Core>
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#include <boost/compute/command_queue.hpp>
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#include <boost/compute/algorithm/copy_n.hpp>
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#include <boost/compute/iterator/buffer_iterator.hpp>
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#include <boost/compute/type_traits/type_name.hpp>
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namespace boost {
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namespace compute {
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/// Copies \p matrix to \p buffer.
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template<class Derived>
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inline void eigen_copy_matrix_to_buffer(const Eigen::PlainObjectBase<Derived> &matrix,
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buffer_iterator<typename Derived::Scalar> buffer,
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command_queue &queue = system::default_queue())
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{
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::boost::compute::copy_n(matrix.data(), matrix.size(), buffer, queue);
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}
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/// Copies \p buffer to \p matrix.
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template<class Derived>
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inline void eigen_copy_buffer_to_matrix(const buffer_iterator<typename Derived::Scalar> buffer,
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Eigen::PlainObjectBase<Derived> &matrix,
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command_queue &queue = system::default_queue())
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{
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::boost::compute::copy_n(buffer, matrix.size(), matrix.data(), queue);
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}
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/// Converts an \c Eigen::Matrix4f to a \c float16_.
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inline float16_ eigen_matrix4f_to_float16(const Eigen::Matrix4f &matrix)
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{
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float16_ result;
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std::memcpy(&result, matrix.data(), 16 * sizeof(float));
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return result;
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}
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/// Converts an \c Eigen::Matrix4d to a \c double16_.
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inline double16_ eigen_matrix4d_to_double16(const Eigen::Matrix4d &matrix)
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{
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double16_ result;
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std::memcpy(&result, matrix.data(), 16 * sizeof(double));
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return result;
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}
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} // end compute namespace
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} // end boost namespace
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BOOST_COMPUTE_TYPE_NAME(Eigen::Vector2i, int2)
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BOOST_COMPUTE_TYPE_NAME(Eigen::Vector4i, int4)
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BOOST_COMPUTE_TYPE_NAME(Eigen::Vector2f, float2)
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BOOST_COMPUTE_TYPE_NAME(Eigen::Vector4f, float4)
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BOOST_COMPUTE_TYPE_NAME(Eigen::Matrix2f, float8)
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BOOST_COMPUTE_TYPE_NAME(Eigen::Matrix4f, float16)
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BOOST_COMPUTE_TYPE_NAME(Eigen::Vector2d, double2)
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BOOST_COMPUTE_TYPE_NAME(Eigen::Vector4d, double4)
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BOOST_COMPUTE_TYPE_NAME(Eigen::Matrix2d, double8)
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BOOST_COMPUTE_TYPE_NAME(Eigen::Matrix4d, double16)
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#endif // BOOST_COMPUTE_INTEROP_EIGEN_EIGEN_HPP
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