projects / ceph.git / blame
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|---|---|---|
| 7c673cae FG |
1 | //---------------------------------------------------------------------------// |
| 2 | // Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com> | |
| 3 | // | |
| 4 | // Distributed under the Boost Software License, Version 1.0 | |
| 5 | // See accompanying file LICENSE_1_0.txt or copy at | |
| 6 | // http://www.boost.org/LICENSE_1_0.txt | |
| 7 | // | |
| 8 | // See http://boostorg.github.com/compute for more information. | |
| 9 | //---------------------------------------------------------------------------// | |
| 10 | ||
| 11 | #ifndef BOOST_COMPUTE_INTEROP_EIGEN_EIGEN_HPP | |
| 12 | #define BOOST_COMPUTE_INTEROP_EIGEN_EIGEN_HPP | |
| 13 | ||
| 14 | #include <Eigen/Core> | |
| 15 | ||
| 16 | #include <boost/compute/command_queue.hpp> | |
| 17 | #include <boost/compute/algorithm/copy_n.hpp> | |
| 18 | #include <boost/compute/iterator/buffer_iterator.hpp> | |
| 19 | #include <boost/compute/type_traits/type_name.hpp> | |
| 20 | ||
| 21 | namespace boost { | |
| 22 | namespace compute { | |
| 23 | ||
| 24 | /// Copies \p matrix to \p buffer. | |
| 25 | template<class Derived> | |
| 26 | inline void eigen_copy_matrix_to_buffer(const Eigen::PlainObjectBase<Derived> &matrix, | |
| 27 | buffer_iterator<typename Derived::Scalar> buffer, | |
| 28 | command_queue &queue = system::default_queue()) | |
| 29 | { | |
| 30 | ::boost::compute::copy_n(matrix.data(), matrix.size(), buffer, queue); | |
| 31 | } | |
| 32 | ||
| 33 | /// Copies \p buffer to \p matrix. | |
| 34 | template<class Derived> | |
| 35 | inline void eigen_copy_buffer_to_matrix(const buffer_iterator<typename Derived::Scalar> buffer, | |
| 36 | Eigen::PlainObjectBase<Derived> &matrix, | |
| 37 | command_queue &queue = system::default_queue()) | |
| 38 | { | |
| 39 | ::boost::compute::copy_n(buffer, matrix.size(), matrix.data(), queue); | |
| 40 | } | |
| 41 | ||
| 42 | /// Converts an \c Eigen::Matrix4f to a \c float16_. | |
| 43 | inline float16_ eigen_matrix4f_to_float16(const Eigen::Matrix4f &matrix) | |
| 44 | { | |
| 45 | float16_ result; | |
| 46 | std::memcpy(&result, matrix.data(), 16 * sizeof(float)); | |
| 47 | return result; | |
| 48 | } | |
| 49 | ||
| 50 | /// Converts an \c Eigen::Matrix4d to a \c double16_. | |
| 51 | inline double16_ eigen_matrix4d_to_double16(const Eigen::Matrix4d &matrix) | |
| 52 | { | |
| 53 | double16_ result; | |
| 54 | std::memcpy(&result, matrix.data(), 16 * sizeof(double)); | |
| 55 | return result; | |
| 56 | } | |
| 57 | ||
| 58 | } // end compute namespace | |
| 59 | } // end boost namespace | |
| 60 | ||
| 61 | BOOST_COMPUTE_TYPE_NAME(Eigen::Vector2i, int2) | |
| 62 | BOOST_COMPUTE_TYPE_NAME(Eigen::Vector4i, int4) | |
| 63 | BOOST_COMPUTE_TYPE_NAME(Eigen::Vector2f, float2) | |
| 64 | BOOST_COMPUTE_TYPE_NAME(Eigen::Vector4f, float4) | |
| 65 | BOOST_COMPUTE_TYPE_NAME(Eigen::Matrix2f, float8) | |
| 66 | BOOST_COMPUTE_TYPE_NAME(Eigen::Matrix4f, float16) | |
| 67 | BOOST_COMPUTE_TYPE_NAME(Eigen::Vector2d, double2) | |
| 68 | BOOST_COMPUTE_TYPE_NAME(Eigen::Vector4d, double4) | |
| 69 | BOOST_COMPUTE_TYPE_NAME(Eigen::Matrix2d, double8) | |
| 70 | BOOST_COMPUTE_TYPE_NAME(Eigen::Matrix4d, double16) | |
| 71 | ||
| 72 | #endif // BOOST_COMPUTE_INTEROP_EIGEN_EIGEN_HPP |