1 //Copyright (c) 2008-2016 Emil Dotchevski and Reverge Studios, Inc. 2 3 //Distributed under the Boost Software License, Version 1.0. (See accompanying 4 //file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 5 6 #ifndef BOOST_QVM_FB4D5BEAC71B11E68D0EEF1707624D53 7 #define BOOST_QVM_FB4D5BEAC71B11E68D0EEF1707624D53 8 9 #include <boost/qvm/inline.hpp> 10 #include <boost/qvm/assert.hpp> 11 12 namespace 13 boost 14 { 15 namespace 16 qvm 17 { 18 template <class> 19 struct mat_traits; 20 21 namespace 22 qvm_detail 23 { 24 template <int I,int N> 25 struct 26 matrix_w 27 { 28 template <class A> 29 static 30 BOOST_QVM_INLINE_CRITICAL 31 typename mat_traits<A>::scalar_type & write_element_idxboost::qvm::qvm_detail::matrix_w32 write_element_idx( int r, int c, A & a ) 33 { 34 return (I/mat_traits<A>::cols)==r && (I%mat_traits<A>::cols)==c? 35 mat_traits<A>::template write_element<I/mat_traits<A>::cols,I%mat_traits<A>::cols>(a) : 36 matrix_w<I+1,N>::write_element_idx(r,c,a); 37 } 38 }; 39 40 template <int N> 41 struct 42 matrix_w<N,N> 43 { 44 template <class A> 45 static 46 BOOST_QVM_INLINE_TRIVIAL 47 typename mat_traits<A>::scalar_type & write_element_idxboost::qvm::qvm_detail::matrix_w48 write_element_idx( int, int, A & a ) 49 { 50 BOOST_QVM_ASSERT(0); 51 return mat_traits<A>::template write_element<0,0>(a); 52 } 53 }; 54 } 55 56 template <class MatType,class ScalarType,int Rows,int Cols> 57 struct 58 mat_traits_defaults 59 { 60 typedef MatType mat_type; 61 typedef ScalarType scalar_type; 62 static int const rows=Rows; 63 static int const cols=Cols; 64 65 template <int Row,int Col> 66 static 67 BOOST_QVM_INLINE_CRITICAL 68 scalar_type read_elementboost::qvm::mat_traits_defaults69 read_element( mat_type const & x ) 70 { 71 return mat_traits<mat_type>::template write_element<Row,Col>(const_cast<mat_type &>(x)); 72 } 73 74 static 75 BOOST_QVM_INLINE_CRITICAL 76 scalar_type read_element_idxboost::qvm::mat_traits_defaults77 read_element_idx( int r, int c, mat_type const & x ) 78 { 79 return mat_traits<mat_type>::write_element_idx(r,c,const_cast<mat_type &>(x)); 80 } 81 82 protected: 83 84 static 85 BOOST_QVM_INLINE_TRIVIAL 86 scalar_type & write_element_idxboost::qvm::mat_traits_defaults87 write_element_idx( int r, int c, mat_type & m ) 88 { 89 return qvm_detail::matrix_w<0,mat_traits<mat_type>::rows*mat_traits<mat_type>::cols>::write_element_idx(r,c,m); 90 } 91 }; 92 } 93 } 94 95 #endif 96