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half_float.hpp
00001 00002 // OpenGL Mathematics Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net) 00004 // Created : 2009-04-29 00005 // Updated : 2010-02-07 00006 // Licence : This source is under MIT License 00007 // File : glm/gtc/half_float.hpp 00009 00010 #ifndef glm_gtc_half_float 00011 #define glm_gtc_half_float 00012 00013 // Dependency: 00014 #include "../glm.hpp" 00015 00016 #if(defined(GLM_MESSAGES) && !defined(glm_ext)) 00017 # pragma message("GLM: GLM_GTC_half_float extension included") 00018 #endif 00019 00020 namespace glm{ 00021 namespace detail 00022 { 00023 #ifndef _MSC_EXTENSIONS 00024 template <> 00025 struct tvec2<thalf> 00026 { 00027 enum ctor{null}; 00028 typedef thalf value_type; 00029 typedef std::size_t size_type; 00030 static size_type value_size(); 00031 00032 typedef tvec2<thalf> type; 00033 typedef tvec2<bool> bool_type; 00034 00036 // Data 00037 00038 thalf x, y; 00039 00041 // Accesses 00042 00043 thalf & operator[](size_type i); 00044 thalf const & operator[](size_type i) const; 00045 00047 // Implicit basic constructors 00048 00049 tvec2(); 00050 tvec2(tvec2<thalf> const & v); 00051 00053 // Explicit basic constructors 00054 00055 explicit tvec2(ctor); 00056 explicit tvec2( 00057 thalf const & s); 00058 explicit tvec2( 00059 thalf const & s1, 00060 thalf const & s2); 00061 00063 // Swizzle constructors 00064 00065 tvec2(tref2<thalf> const & r); 00066 00068 // Convertion scalar constructors 00069 00071 template <typename U> 00072 explicit tvec2(U const & x); 00074 template <typename U, typename V> 00075 explicit tvec2(U const & x, V const & y); 00076 00078 // Convertion vector constructors 00079 00081 template <typename U> 00082 explicit tvec2(tvec2<U> const & v); 00084 template <typename U> 00085 explicit tvec2(tvec3<U> const & v); 00087 template <typename U> 00088 explicit tvec2(tvec4<U> const & v); 00089 00091 // Unary arithmetic operators 00092 00093 tvec2<thalf>& operator= (tvec2<thalf> const & v); 00094 00095 tvec2<thalf>& operator+=(thalf const & s); 00096 tvec2<thalf>& operator+=(tvec2<thalf> const & v); 00097 tvec2<thalf>& operator-=(thalf const & s); 00098 tvec2<thalf>& operator-=(tvec2<thalf> const & v); 00099 tvec2<thalf>& operator*=(thalf const & s); 00100 tvec2<thalf>& operator*=(tvec2<thalf> const & v); 00101 tvec2<thalf>& operator/=(thalf const & s); 00102 tvec2<thalf>& operator/=(tvec2<thalf> const & v); 00103 tvec2<thalf>& operator++(); 00104 tvec2<thalf>& operator--(); 00105 00107 // Swizzle operators 00108 00109 thalf swizzle(comp X) const; 00110 tvec2<thalf> swizzle(comp X, comp Y) const; 00111 tvec3<thalf> swizzle(comp X, comp Y, comp Z) const; 00112 tvec4<thalf> swizzle(comp X, comp Y, comp Z, comp W) const; 00113 tref2<thalf> swizzle(comp X, comp Y); 00114 }; 00115 00116 template <> 00117 struct tvec3<thalf> 00118 { 00119 enum ctor{null}; 00120 typedef thalf value_type; 00121 typedef std::size_t size_type; 00122 static size_type value_size(); 00123 00124 typedef tvec3<thalf> type; 00125 typedef tvec3<bool> bool_type; 00126 00128 // Data 00129 00130 thalf x, y, z; 00131 00133 // Accesses 00134 00135 thalf & operator[](size_type i); 00136 thalf const & operator[](size_type i) const; 00137 00139 // Implicit basic constructors 00140 00141 tvec3(); 00142 tvec3(tvec3<thalf> const & v); 00143 00145 // Explicit basic constructors 00146 00147 explicit tvec3(ctor); 00148 explicit tvec3( 00149 thalf const & s); 00150 explicit tvec3( 00151 thalf const & s1, 00152 thalf const & s2, 00153 thalf const & s3); 00154 00156 // Swizzle constructors 00157 00158 tvec3(tref3<thalf> const & r); 00159 00161 // Convertion scalar constructors 00162 00164 template <typename U> 00165 explicit tvec3(U const & x); 00167 template <typename U, typename V, typename W> 00168 explicit tvec3(U const & x, V const & y, W const & z); 00169 00171 // Convertion vector constructors 00172 00174 template <typename A, typename B> 00175 explicit tvec3(tvec2<A> const & v, B const & s); 00177 template <typename A, typename B> 00178 explicit tvec3(A const & s, tvec2<B> const & v); 00180 template <typename U> 00181 explicit tvec3(tvec3<U> const & v); 00183 template <typename U> 00184 explicit tvec3(tvec4<U> const & v); 00185 00187 // Unary arithmetic operators 00188 00189 tvec3<thalf>& operator= (tvec3<thalf> const & v); 00190 00191 tvec3<thalf>& operator+=(thalf const & s); 00192 tvec3<thalf>& operator+=(tvec3<thalf> const & v); 00193 tvec3<thalf>& operator-=(thalf const & s); 00194 tvec3<thalf>& operator-=(tvec3<thalf> const & v); 00195 tvec3<thalf>& operator*=(thalf const & s); 00196 tvec3<thalf>& operator*=(tvec3<thalf> const & v); 00197 tvec3<thalf>& operator/=(thalf const & s); 00198 tvec3<thalf>& operator/=(tvec3<thalf> const & v); 00199 tvec3<thalf>& operator++(); 00200 tvec3<thalf>& operator--(); 00201 00203 // Swizzle operators 00204 00205 thalf swizzle(comp X) const; 00206 tvec2<thalf> swizzle(comp X, comp Y) const; 00207 tvec3<thalf> swizzle(comp X, comp Y, comp Z) const; 00208 tvec4<thalf> swizzle(comp X, comp Y, comp Z, comp W) const; 00209 tref3<thalf> swizzle(comp X, comp Y, comp Z); 00210 }; 00211 00212 template <> 00213 struct tvec4<thalf> 00214 { 00215 enum ctor{null}; 00216 typedef thalf value_type; 00217 typedef std::size_t size_type; 00218 static size_type value_size(); 00219 00220 typedef tvec4<thalf> type; 00221 typedef tvec4<bool> bool_type; 00222 00224 // Data 00225 00226 thalf x, y, z, w; 00227 00229 // Accesses 00230 00231 thalf & operator[](size_type i); 00232 thalf const & operator[](size_type i) const; 00233 00235 // Implicit basic constructors 00236 00237 tvec4(); 00238 tvec4(tvec4<thalf> const & v); 00239 00241 // Explicit basic constructors 00242 00243 explicit tvec4(ctor); 00244 explicit tvec4( 00245 thalf const & s); 00246 explicit tvec4( 00247 thalf const & s0, 00248 thalf const & s1, 00249 thalf const & s2, 00250 thalf const & s3); 00251 00253 // Swizzle constructors 00254 00255 tvec4(tref4<thalf> const & r); 00256 00258 // Convertion scalar constructors 00259 00261 template <typename U> 00262 explicit tvec4(U const & x); 00264 template <typename A, typename B, typename C, typename D> 00265 explicit tvec4(A const & x, B const & y, C const & z, D const & w); 00266 00268 // Convertion vector constructors 00269 00271 template <typename A, typename B, typename C> 00272 explicit tvec4(tvec2<A> const & v, B const & s1, C const & s2); 00274 template <typename A, typename B, typename C> 00275 explicit tvec4(A const & s1, tvec2<B> const & v, C const & s2); 00277 template <typename A, typename B, typename C> 00278 explicit tvec4(A const & s1, B const & s2, tvec2<C> const & v); 00280 template <typename A, typename B> 00281 explicit tvec4(tvec3<A> const & v, B const & s); 00283 template <typename A, typename B> 00284 explicit tvec4(A const & s, tvec3<B> const & v); 00286 template <typename A, typename B> 00287 explicit tvec4(tvec2<A> const & v1, tvec2<B> const & v2); 00289 template <typename U> 00290 explicit tvec4(tvec4<U> const & v); 00291 00293 // Unary arithmetic operators 00294 00295 tvec4<thalf>& operator= (tvec4<thalf> const & v); 00296 00297 tvec4<thalf>& operator+=(thalf const & s); 00298 tvec4<thalf>& operator+=(tvec4<thalf> const & v); 00299 tvec4<thalf>& operator-=(thalf const & s); 00300 tvec4<thalf>& operator-=(tvec4<thalf> const & v); 00301 tvec4<thalf>& operator*=(thalf const & s); 00302 tvec4<thalf>& operator*=(tvec4<thalf> const & v); 00303 tvec4<thalf>& operator/=(thalf const & s); 00304 tvec4<thalf>& operator/=(tvec4<thalf> const & v); 00305 tvec4<thalf>& operator++(); 00306 tvec4<thalf>& operator--(); 00307 00309 // Swizzle operators 00310 00311 thalf swizzle(comp X) const; 00312 tvec2<thalf> swizzle(comp X, comp Y) const; 00313 tvec3<thalf> swizzle(comp X, comp Y, comp Z) const; 00314 tvec4<thalf> swizzle(comp X, comp Y, comp Z, comp W) const; 00315 tref4<thalf> swizzle(comp X, comp Y, comp Z, comp W); 00316 }; 00317 #endif//_MSC_EXTENSIONS 00318 } 00319 //namespace detail 00320 00321 namespace gtc{ 00322 namespace half_float 00323 { 00326 00329 typedef detail::thalf half; 00330 00333 typedef detail::tvec2<detail::thalf> hvec2; 00334 00337 typedef detail::tvec3<detail::thalf> hvec3; 00338 00341 typedef detail::tvec4<detail::thalf> hvec4; 00342 00345 typedef detail::tmat2x2<detail::thalf> hmat2; 00346 00349 typedef detail::tmat3x3<detail::thalf> hmat3; 00350 00353 typedef detail::tmat4x4<detail::thalf> hmat4; 00354 00356 00357 }// namespace half_float 00358 }// namespace gtc 00359 }// namespace glm 00360 00361 #include "half_float.inl" 00362 00363 namespace glm{using namespace gtc::half_float;} 00364 00365 #endif//glm_gtc_half_float
