_detail.hpp
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00029 #ifndef glm_core_detail
00030 #define glm_core_detail
00031 
00032 #include "setup.hpp"
00033 #include <cassert>
00034 #if(defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L))
00035 #include <cstdint>
00036 #endif
00037 
00038 namespace glm{
00039 namespace detail
00040 {
00041         class half;
00042 
00043 #if(defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) // C99 detected, 64 bit types available
00044         typedef int64_t                                                         sint64;
00045         typedef uint64_t                                                        uint64;
00046 #elif(GLM_COMPILER & GLM_COMPILER_VC)
00047         typedef signed __int64                                          sint64;
00048         typedef unsigned __int64                                        uint64;
00049 #elif(GLM_COMPILER & (GLM_COMPILER_GCC | GLM_COMPILER_LLVM_GCC | GLM_COMPILER_CLANG))
00050         __extension__ typedef signed long long          sint64;
00051         __extension__ typedef unsigned long long        uint64;
00052 #elif(GLM_COMPILER & GLM_COMPILER_BC)
00053         typedef Int64                                                           sint64;
00054         typedef Uint64                                                          uint64;
00055 #else//unknown compiler
00056         typedef signed long     long                                    sint64;
00057         typedef unsigned long long                                      uint64;
00058 #endif//GLM_COMPILER
00059 
00060         template<bool C>
00061         struct If
00062         {
00063                 template<typename F, typename T>
00064                 static GLM_FUNC_QUALIFIER T apply(F functor, const T& val)
00065                 {
00066                         return functor(val);
00067                 }
00068         };
00069 
00070         template<>
00071         struct If<false>
00072         {
00073                 template<typename F, typename T>
00074                 static GLM_FUNC_QUALIFIER T apply(F, const T& val)
00075                 {
00076                         return val;
00077                 }
00078         };
00079 
00080         //template <typename T>
00081         //struct traits
00082         //{
00083         //      static const bool is_signed = false;
00084         //      static const bool is_float = false;
00085         //      static const bool is_vector = false;
00086         //      static const bool is_matrix = false;
00087         //      static const bool is_genType = false;
00088         //      static const bool is_genIType = false;
00089         //      static const bool is_genUType = false;
00090         //};
00091 
00092         //template <>
00093         //struct traits<half>
00094         //{
00095         //      static const bool is_float = true;
00096         //      static const bool is_genType = true;
00097         //};
00098 
00099         //template <>
00100         //struct traits<float>
00101         //{
00102         //      static const bool is_float = true;
00103         //      static const bool is_genType = true;
00104         //};
00105 
00106         //template <>
00107         //struct traits<double>
00108         //{
00109         //      static const bool is_float = true;
00110         //      static const bool is_genType = true;
00111         //};
00112 
00113         //template <typename genType>
00114         //struct desc
00115         //{
00116         //      typedef genType                                                 type;
00117         //      typedef genType *                                               pointer;
00118         //      typedef genType const*                                  const_pointer;
00119         //      typedef genType const *const                    const_pointer_const;
00120         //      typedef genType *const                                  pointer_const;
00121         //      typedef genType &                                               reference;
00122         //      typedef genType const&                                  const_reference;
00123         //      typedef genType const&                                  param_type;
00124 
00125         //      typedef typename genType::value_type    value_type;
00126         //      typedef typename genType::size_type             size_type;
00127         //      static const typename size_type                 value_size;
00128         //};
00129 
00130         //template <typename genType>
00131         //const typename desc<genType>::size_type desc<genType>::value_size = genType::value_size();
00132 
00133         union uif32
00134         {
00135                 GLM_FUNC_QUALIFIER uif32() :
00136                         i(0)
00137                 {}
00138 
00139                 GLM_FUNC_QUALIFIER uif32(float f) :
00140                         f(f)
00141                 {}
00142 
00143                 GLM_FUNC_QUALIFIER uif32(unsigned int i) :
00144                         i(i)
00145                 {}
00146 
00147                 float f;
00148                 unsigned int i;
00149         };
00150 
00151         union uif64
00152         {
00153                 GLM_FUNC_QUALIFIER uif64() :
00154                         i(0)
00155                 {}
00156 
00157                 GLM_FUNC_QUALIFIER uif64(double f) :
00158                         f(f)
00159                 {}
00160 
00161                 GLM_FUNC_QUALIFIER uif64(uint64 i) :
00162                         i(i)
00163                 {}
00164 
00165                 double f;
00166                 uint64 i;
00167         };
00168 
00169         typedef uif32 uif;
00170 
00172         // int
00173 
00174         template <typename T>
00175         struct is_int
00176         {
00177                 enum is_int_enum
00178                 {
00179                         _YES = 0,
00180                         _NO = 1
00181                 };
00182         };
00183 
00184 #define GLM_DETAIL_IS_INT(T)    \
00185         template <>                                     \
00186         struct is_int<T>                        \
00187         {                                                       \
00188                 enum is_int_enum                \
00189                 {                                               \
00190                         _YES = 1,                       \
00191                         _NO = 0                         \
00192                 };                                              \
00193         }
00194 
00196         // uint
00197 
00198         template <typename T>
00199         struct is_uint
00200         {
00201                 enum is_uint_enum
00202                 {
00203                         _YES = 0,
00204                         _NO = 1
00205                 };
00206         };
00207 
00208 #define GLM_DETAIL_IS_UINT(T)   \
00209         template <>                                     \
00210         struct is_uint<T>                       \
00211         {                                                       \
00212                 enum is_uint_enum               \
00213                 {                                               \
00214                         _YES = 1,                       \
00215                         _NO = 0                         \
00216                 };                                              \
00217         }
00218 
00219         //GLM_DETAIL_IS_UINT(unsigned long long)
00220 
00222         // float
00223 
00224         template <typename T>
00225         struct is_float
00226         {
00227                 enum is_float_enum
00228                 {
00229                         _YES = 0,
00230                         _NO = 1
00231                 };
00232         };
00233 
00234 #define GLM_DETAIL_IS_FLOAT(T)  \
00235         template <>                                     \
00236         struct is_float<T>                      \
00237         {                                                       \
00238                 enum is_float_enum              \
00239                 {                                               \
00240                         _YES = 1,                       \
00241                         _NO = 0                         \
00242                 };                                              \
00243         }
00244 
00245         GLM_DETAIL_IS_FLOAT(detail::half);
00246         GLM_DETAIL_IS_FLOAT(float);
00247         GLM_DETAIL_IS_FLOAT(double);
00248         GLM_DETAIL_IS_FLOAT(long double);
00249 
00251         // bool
00252 
00253         template <typename T>
00254         struct is_bool
00255         {
00256                 enum is_bool_enum
00257                 {
00258                         _YES = 0,
00259                         _NO = 1
00260                 };
00261         };
00262         
00263         template <>
00264         struct is_bool<bool>
00265         {
00266                 enum is_bool_enum
00267                 {
00268                         _YES = 1,
00269                         _NO = 0
00270                 };
00271         };
00272         
00274         // vector
00275 
00276         template <typename T>
00277         struct is_vector
00278         {
00279                 enum is_vector_enum
00280                 {
00281                         _YES = 0,
00282                         _NO = 1
00283                 };
00284         };
00285 
00286 #       define GLM_DETAIL_IS_VECTOR(TYPE) \
00287                 template <typename T> \
00288                 struct is_vector<TYPE<T> > \
00289                 { \
00290                         enum is_vector_enum \
00291                         { \
00292                                 _YES = 1, \
00293                                 _NO = 0 \
00294                         }; \
00295                 }
00296 
00298         // matrix
00299 
00300         template <typename T>
00301         struct is_matrix
00302         {
00303                 enum is_matrix_enum
00304                 {
00305                         _YES = 0,
00306                         _NO = 1
00307                 };
00308         };
00309 
00310 #define GLM_DETAIL_IS_MATRIX(T) \
00311         template <>                                     \
00312         struct is_matrix                        \
00313         {                                                       \
00314                 enum is_matrix_enum             \
00315                 {                                               \
00316                         _YES = 1,                       \
00317                         _NO = 0                         \
00318                 };                                              \
00319         }
00320 
00322         // type
00323 
00324         template <typename T>
00325         struct type
00326         {
00327                 enum type_enum
00328                 {
00329                         is_float = is_float<T>::_YES,
00330                         is_int = is_int<T>::_YES,
00331                         is_uint = is_uint<T>::_YES,
00332                         is_bool = is_bool<T>::_YES
00333                 };
00334         };
00335         
00337         // type
00338         
00339         typedef signed char                                                     int8;
00340         typedef signed short                                            int16;
00341         typedef signed int                                                      int32;
00342         typedef detail::sint64                                          int64;
00343         
00344         typedef unsigned char                                           uint8;
00345         typedef unsigned short                                          uint16;
00346         typedef unsigned int                                            uint32;
00347         typedef detail::uint64                                          uint64;
00348         
00349         typedef detail::half                                            float16;
00350         typedef float                                                           float32;
00351         typedef double                                                          float64;
00352         
00354         // float_or_int_trait 
00355 
00356         struct float_or_int_value
00357         {
00358                 enum
00359                 {
00360                         GLM_ERROR,
00361                         GLM_FLOAT,
00362                         GLM_INT
00363                 };
00364         };
00365 
00366         template <typename T>
00367         struct float_or_int_trait
00368         {
00369                 enum{ID = float_or_int_value::GLM_ERROR};
00370         };
00371 
00372         template <>
00373         struct float_or_int_trait<int8>
00374         {
00375                 enum{ID = float_or_int_value::GLM_INT};
00376         };
00377 
00378         template <>
00379         struct float_or_int_trait<int16>
00380         {
00381                 enum{ID = float_or_int_value::GLM_INT};
00382         };
00383 
00384         template <>
00385         struct float_or_int_trait<int32>
00386         {
00387                 enum{ID = float_or_int_value::GLM_INT};
00388         };
00389 
00390         template <>
00391         struct float_or_int_trait<int64>
00392         {
00393                 enum{ID = float_or_int_value::GLM_INT};
00394         };
00395 
00396         template <>
00397         struct float_or_int_trait<uint8>
00398         {
00399                 enum{ID = float_or_int_value::GLM_INT};
00400         };
00401 
00402         template <>
00403         struct float_or_int_trait<uint16>
00404         {
00405                 enum{ID = float_or_int_value::GLM_INT};
00406         };
00407 
00408         template <>
00409         struct float_or_int_trait<uint32>
00410         {
00411                 enum{ID = float_or_int_value::GLM_INT};
00412         };
00413 
00414         template <>
00415         struct float_or_int_trait<uint64>
00416         {
00417                 enum{ID = float_or_int_value::GLM_INT};
00418         };
00419 
00420         template <>
00421         struct float_or_int_trait<float16>
00422         {
00423                 enum{ID = float_or_int_value::GLM_FLOAT};
00424         };
00425 
00426         template <>
00427         struct float_or_int_trait<float32>
00428         {
00429                 enum{ID = float_or_int_value::GLM_FLOAT};
00430         };
00431 
00432         template <>
00433         struct float_or_int_trait<float64>
00434         {
00435                 enum{ID = float_or_int_value::GLM_FLOAT};
00436         };
00437 
00438 }//namespace detail
00439 }//namespace glm
00440 
00441 #if((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2005))
00442 #       define GLM_DEPRECATED __declspec(deprecated)
00443 #       define GLM_ALIGN(x) __declspec(align(x)) 
00444 #       define GLM_ALIGNED_STRUCT(x) __declspec(align(x)) struct 
00445 #       define GLM_RESTRICT __declspec(restrict)
00446 #       define GLM_RESTRICT_VAR __restrict
00447 #elif((GLM_COMPILER & (GLM_COMPILER_GCC | GLM_COMPILER_LLVM_GCC)) && (GLM_COMPILER >= GLM_COMPILER_GCC31))
00448 #       define GLM_DEPRECATED __attribute__((__deprecated__))
00449 #       define GLM_ALIGN(x) __attribute__((aligned(x)))
00450 #       define GLM_ALIGNED_STRUCT(x) struct __attribute__((aligned(x)))
00451 #       if(GLM_COMPILER >= GLM_COMPILER_GCC33)
00452 #               define GLM_RESTRICT __restrict__
00453 #               define GLM_RESTRICT_VAR __restrict__
00454 #       else
00455 #               define GLM_RESTRICT
00456 #               define GLM_RESTRICT_VAR
00457 #       endif
00458 #       define GLM_RESTRICT __restrict__
00459 #       define GLM_RESTRICT_VAR __restrict__
00460 #else
00461 #       define GLM_DEPRECATED
00462 #       define GLM_ALIGN
00463 #       define GLM_ALIGNED_STRUCT(x) 
00464 #       define GLM_RESTRICT
00465 #       define GLM_RESTRICT_VAR
00466 #endif//GLM_COMPILER
00467 
00468 #endif//glm_core_detail