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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 GLM_FUNC_DECL size_type length() const; 00032 00033 typedef tvec2<thalf> type; 00034 typedef tvec2<bool> bool_type; 00035 00037 // Data 00038 00039 thalf x, y; 00040 00042 // Accesses 00043 00044 thalf & operator[](size_type i); 00045 thalf const & operator[](size_type i) const; 00046 00048 // Implicit basic constructors 00049 00050 tvec2(); 00051 tvec2(tvec2<thalf> const & v); 00052 00054 // Explicit basic constructors 00055 00056 explicit tvec2(ctor); 00057 explicit tvec2( 00058 thalf const & s); 00059 explicit tvec2( 00060 thalf const & s1, 00061 thalf const & s2); 00062 00064 // Swizzle constructors 00065 00066 tvec2(tref2<thalf> const & r); 00067 00069 // Convertion scalar constructors 00070 00072 template <typename U> 00073 explicit tvec2(U const & x); 00075 template <typename U, typename V> 00076 explicit tvec2(U const & x, V const & y); 00077 00079 // Convertion vector constructors 00080 00082 template <typename U> 00083 explicit tvec2(tvec2<U> const & v); 00085 template <typename U> 00086 explicit tvec2(tvec3<U> const & v); 00088 template <typename U> 00089 explicit tvec2(tvec4<U> const & v); 00090 00092 // Unary arithmetic operators 00093 00094 tvec2<thalf>& operator= (tvec2<thalf> const & v); 00095 00096 tvec2<thalf>& operator+=(thalf const & s); 00097 tvec2<thalf>& operator+=(tvec2<thalf> const & v); 00098 tvec2<thalf>& operator-=(thalf const & s); 00099 tvec2<thalf>& operator-=(tvec2<thalf> const & v); 00100 tvec2<thalf>& operator*=(thalf const & s); 00101 tvec2<thalf>& operator*=(tvec2<thalf> const & v); 00102 tvec2<thalf>& operator/=(thalf const & s); 00103 tvec2<thalf>& operator/=(tvec2<thalf> const & v); 00104 tvec2<thalf>& operator++(); 00105 tvec2<thalf>& operator--(); 00106 00108 // Swizzle operators 00109 00110 thalf swizzle(comp X) const; 00111 tvec2<thalf> swizzle(comp X, comp Y) const; 00112 tvec3<thalf> swizzle(comp X, comp Y, comp Z) const; 00113 tvec4<thalf> swizzle(comp X, comp Y, comp Z, comp W) const; 00114 tref2<thalf> swizzle(comp X, comp Y); 00115 }; 00116 00117 template <> 00118 struct tvec3<thalf> 00119 { 00120 enum ctor{null}; 00121 typedef thalf value_type; 00122 typedef std::size_t size_type; 00123 static size_type value_size(); 00124 GLM_FUNC_DECL size_type length() const; 00125 00126 typedef tvec3<thalf> type; 00127 typedef tvec3<bool> bool_type; 00128 00130 // Data 00131 00132 thalf x, y, z; 00133 00135 // Accesses 00136 00137 thalf & operator[](size_type i); 00138 thalf const & operator[](size_type i) const; 00139 00141 // Implicit basic constructors 00142 00143 tvec3(); 00144 tvec3(tvec3<thalf> const & v); 00145 00147 // Explicit basic constructors 00148 00149 explicit tvec3(ctor); 00150 explicit tvec3( 00151 thalf const & s); 00152 explicit tvec3( 00153 thalf const & s1, 00154 thalf const & s2, 00155 thalf const & s3); 00156 00158 // Swizzle constructors 00159 00160 tvec3(tref3<thalf> const & r); 00161 00163 // Convertion scalar constructors 00164 00166 template <typename U> 00167 explicit tvec3(U const & x); 00169 template <typename U, typename V, typename W> 00170 explicit tvec3(U const & x, V const & y, W const & z); 00171 00173 // Convertion vector constructors 00174 00176 template <typename A, typename B> 00177 explicit tvec3(tvec2<A> const & v, B const & s); 00179 template <typename A, typename B> 00180 explicit tvec3(A const & s, tvec2<B> const & v); 00182 template <typename U> 00183 explicit tvec3(tvec3<U> const & v); 00185 template <typename U> 00186 explicit tvec3(tvec4<U> const & v); 00187 00189 // Unary arithmetic operators 00190 00191 tvec3<thalf>& operator= (tvec3<thalf> const & v); 00192 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/=(thalf const & s); 00200 tvec3<thalf>& operator/=(tvec3<thalf> const & v); 00201 tvec3<thalf>& operator++(); 00202 tvec3<thalf>& operator--(); 00203 00205 // Swizzle operators 00206 00207 thalf swizzle(comp X) const; 00208 tvec2<thalf> swizzle(comp X, comp Y) const; 00209 tvec3<thalf> swizzle(comp X, comp Y, comp Z) const; 00210 tvec4<thalf> swizzle(comp X, comp Y, comp Z, comp W) const; 00211 tref3<thalf> swizzle(comp X, comp Y, comp Z); 00212 }; 00213 00214 template <> 00215 struct tvec4<thalf> 00216 { 00217 enum ctor{null}; 00218 typedef thalf value_type; 00219 typedef std::size_t size_type; 00220 static size_type value_size(); 00221 GLM_FUNC_DECL size_type length() const; 00222 00223 typedef tvec4<thalf> type; 00224 typedef tvec4<bool> bool_type; 00225 00227 // Data 00228 00229 thalf x, y, z, w; 00230 00232 // Accesses 00233 00234 thalf & operator[](size_type i); 00235 thalf const & operator[](size_type i) const; 00236 00238 // Implicit basic constructors 00239 00240 tvec4(); 00241 tvec4(tvec4<thalf> const & v); 00242 00244 // Explicit basic constructors 00245 00246 explicit tvec4(ctor); 00247 explicit tvec4( 00248 thalf const & s); 00249 explicit tvec4( 00250 thalf const & s0, 00251 thalf const & s1, 00252 thalf const & s2, 00253 thalf const & s3); 00254 00256 // Swizzle constructors 00257 00258 tvec4(tref4<thalf> const & r); 00259 00261 // Convertion scalar constructors 00262 00264 template <typename U> 00265 explicit tvec4(U const & x); 00267 template <typename A, typename B, typename C, typename D> 00268 explicit tvec4(A const & x, B const & y, C const & z, D const & w); 00269 00271 // Convertion vector constructors 00272 00274 template <typename A, typename B, typename C> 00275 explicit tvec4(tvec2<A> const & v, B const & s1, C const & s2); 00277 template <typename A, typename B, typename C> 00278 explicit tvec4(A const & s1, tvec2<B> const & v, C const & s2); 00280 template <typename A, typename B, typename C> 00281 explicit tvec4(A const & s1, B const & s2, tvec2<C> const & v); 00283 template <typename A, typename B> 00284 explicit tvec4(tvec3<A> const & v, B const & s); 00286 template <typename A, typename B> 00287 explicit tvec4(A const & s, tvec3<B> const & v); 00289 template <typename A, typename B> 00290 explicit tvec4(tvec2<A> const & v1, tvec2<B> const & v2); 00292 template <typename U> 00293 explicit tvec4(tvec4<U> const & v); 00294 00296 // Unary arithmetic operators 00297 00298 tvec4<thalf>& operator= (tvec4<thalf> const & v); 00299 00300 tvec4<thalf>& operator+=(thalf const & s); 00301 tvec4<thalf>& operator+=(tvec4<thalf> const & v); 00302 tvec4<thalf>& operator-=(thalf const & s); 00303 tvec4<thalf>& operator-=(tvec4<thalf> const & v); 00304 tvec4<thalf>& operator*=(thalf const & s); 00305 tvec4<thalf>& operator*=(tvec4<thalf> const & v); 00306 tvec4<thalf>& operator/=(thalf const & s); 00307 tvec4<thalf>& operator/=(tvec4<thalf> const & v); 00308 tvec4<thalf>& operator++(); 00309 tvec4<thalf>& operator--(); 00310 00312 // Swizzle operators 00313 00314 thalf swizzle(comp X) const; 00315 tvec2<thalf> swizzle(comp X, comp Y) const; 00316 tvec3<thalf> swizzle(comp X, comp Y, comp Z) const; 00317 tvec4<thalf> swizzle(comp X, comp Y, comp Z, comp W) const; 00318 tref4<thalf> swizzle(comp X, comp Y, comp Z, comp W); 00319 }; 00320 #endif//_MSC_EXTENSIONS 00321 } 00322 //namespace detail 00323 00324 namespace gtc{ 00325 namespace half_float 00326 { 00329 00332 typedef detail::thalf half; 00333 00336 typedef detail::tvec2<detail::thalf> hvec2; 00337 00340 typedef detail::tvec3<detail::thalf> hvec3; 00341 00344 typedef detail::tvec4<detail::thalf> hvec4; 00345 00348 typedef detail::tmat2x2<detail::thalf> hmat2; 00349 00352 typedef detail::tmat3x3<detail::thalf> hmat3; 00353 00356 typedef detail::tmat4x4<detail::thalf> hmat4; 00357 00360 typedef detail::tmat2x2<detail::thalf> hmat2x2; 00361 00364 typedef detail::tmat2x3<detail::thalf> hmat2x3; 00365 00368 typedef detail::tmat2x4<detail::thalf> hmat2x4; 00369 00372 typedef detail::tmat3x2<detail::thalf> hmat3x2; 00373 00376 typedef detail::tmat3x3<detail::thalf> hmat3x3; 00377 00380 typedef detail::tmat3x4<detail::thalf> hmat3x4; 00381 00384 typedef detail::tmat4x2<detail::thalf> hmat4x2; 00385 00388 typedef detail::tmat4x3<detail::thalf> hmat4x3; 00389 00392 typedef detail::tmat4x4<detail::thalf> hmat4x4; 00393 00395 00396 }// namespace half_float 00397 }// namespace gtc 00398 }// namespace glm 00399 00400 #include "half_float.inl" 00401 00402 namespace glm{using namespace gtc::half_float;} 00403 00404 #endif//glm_gtc_half_float
