boost/qvm/vec_traits_gnuc.hpp

0001 #ifndef BOOST_QVM_VEC_TRAITS_GNUC_HPP_INCLUDED
0002 #define BOOST_QVM_VEC_TRAITS_GNUC_HPP_INCLUDED
0003
0004 // Copyright 2008-2024 Emil Dotchevski and Reverge Studios, Inc.
0005 // Distributed under the Boost Software License, Version 1.0. (See accompanying
0006 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0007
0008 #if defined(__GNUC__) && defined(__SSE2__)
0009
0010 #include <boost/qvm/config.hpp>
0011 #include <boost/qvm/assert.hpp>
0012 #include <boost/qvm/static_assert.hpp>
0013
0014 namespace boost { namespace qvm {
0015
0016 namespace
0017 qvm_detail
0018     {
0019     template <class V, class T, int D>
0020     struct
0021     vec_traits_gnuc_impl
0022         {
0023         typedef T scalar_type;
0024         static int const dim=D;
0025
0026         template <int I>
0027         static
0028         BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_CRITICAL
0029         scalar_type
0030         read_element( V const & x )
0031             {
0032             BOOST_QVM_STATIC_ASSERT(I>=0);
0033             BOOST_QVM_STATIC_ASSERT(I<dim);
0034             return x[I];
0035             }
0036
0037         template <int I>
0038         static
0039         BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_CRITICAL
0040         void
0041         write_element( V & x, scalar_type s )
0042             {
0043             BOOST_QVM_STATIC_ASSERT(I>=0);
0044             BOOST_QVM_STATIC_ASSERT(I<dim);
0045             x[I] = s;
0046             }
0047
0048         static
0049         BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_CRITICAL
0050         scalar_type
0051         read_element_idx( int i, V const & x )
0052             {
0053             BOOST_QVM_ASSERT(i>=0);
0054             BOOST_QVM_ASSERT(i<dim);
0055             return x[i];
0056             }
0057
0058         static
0059         BOOST_QVM_CONSTEXPR BOOST_QVM_INLINE_CRITICAL
0060         void
0061         write_element_idx( int i, V & x, scalar_type s )
0062             {
0063             BOOST_QVM_ASSERT(i>=0);
0064             BOOST_QVM_ASSERT(i<dim);
0065             x[i] = s;
0066             }
0067         };
0068     }
0069
0070 template <class> struct vec_traits;
0071 template <class> struct is_vec;
0072
0073 #define BOOST_QVM_GNUC_VEC_TYPE(T,D)\
0074     template <>\
0075     struct\
0076     vec_traits<T __attribute__((vector_size(sizeof(T)*D)))>:\
0077         qvm_detail::vec_traits_gnuc_impl<T __attribute__((vector_size(sizeof(T)*D))),T,D>\
0078         {\
0079         };\
0080     template <>\
0081     struct\
0082     is_vec<T __attribute__((vector_size(sizeof(T)*D)))>\
0083         {\
0084         enum { value = true };\
0085         };
0086
0087 BOOST_QVM_GNUC_VEC_TYPE(float,2)
0088 BOOST_QVM_GNUC_VEC_TYPE(float,4)
0089 BOOST_QVM_GNUC_VEC_TYPE(double,2)
0090 BOOST_QVM_GNUC_VEC_TYPE(double,4)
0091
0092 #undef BOOST_QVM_GNUC_VEC_TYPE
0093
0094 } }
0095
0096 #endif
0097
0098 #endif