Sh: ShFunc.hpp Source File

00001 // Sh: A GPU metaprogramming language. 00002 // 00003 // Copyright (c) 2003 University of Waterloo Computer Graphics Laboratory 00004 // Project administrator: Michael D. McCool 00005 // Authors: Zheng Qin, Stefanus Du Toit, Kevin Moule, Tiberiu S. Popa, 00006 // Bryan Chan, Michael D. McCool 00007 // 00008 // This software is provided 'as-is', without any express or implied 00009 // warranty. In no event will the authors be held liable for any damages 00010 // arising from the use of this software. 00011 // 00012 // Permission is granted to anyone to use this software for any purpose, 00013 // including commercial applications, and to alter it and redistribute it 00014 // freely, subject to the following restrictions: 00015 // 00016 // 1. The origin of this software must not be misrepresented; you must 00017 // not claim that you wrote the original software. If you use this 00018 // software in a product, an acknowledgment in the product documentation 00019 // would be appreciated but is not required. 00020 // 00021 // 2. Altered source versions must be plainly marked as such, and must 00022 // not be misrepresented as being the original software. 00023 // 00024 // 3. This notice may not be removed or altered from any source 00025 // distribution. 00027 #ifndef SHUTIL_FUNC_HPP 00028 #define SHUTIL_FUNC_HPP 00029 00030 #include "ShVariable.hpp" 00031 #include "ShAttrib.hpp" 00032 00033 namespace ShUtil { 00034 00035 using namespace SH; 00036 00037 //TODO extend to vector versions 00038 00049 template<int N, typename T> 00050 ShGeneric<N, T> smoothstep(const ShGeneric<N, T>& a, const ShGeneric<N, T>& b, 00051 const ShGeneric<N, T> x); 00052 00055 template<int N, typename T> 00056 ShGeneric<1, T> distance(const ShGeneric<N, T>& a, const ShGeneric<N, T>& b); 00057 00061 template<int N, typename T> 00062 ShGeneric<1, T> lOneDistance(const ShGeneric<N, T>& a, const ShGeneric<N, T>& b); 00063 00067 template<int N, typename T> 00068 ShGeneric<1, T> lInfDistance(const ShGeneric<N, T>& a, const ShGeneric<N, T>& b); 00069 00076 // TODO: may not work as intended on 24-bit floats 00077 // since there may not be enough precision 00078 template<int N, typename T> 00079 ShGeneric<N, T> hashlcg(const ShGeneric<N, T>& p); 00080 00093 template<int N, typename T> 00094 ShGeneric<N, T> hashmrg(const ShGeneric<N, T>& p); 00095 00096 00101 template<int N, ShBindingType Binding, typename T> 00102 ShAttrib<N, Binding, T> evenOddSort(const ShAttrib<N, Binding, T>& v); 00103 00108 template<int S, int N, ShBindingType Binding, typename T> 00109 void groupEvenOddSort(ShAttrib<N, Binding, T> v[]); 00110 00115 //template<int S, int N, ShBindingType Binding, typename T> 00116 //void groupBitonicSort(ShAttrib<N, Binding, T> v[]); 00117 00121 template<typename T> 00122 ShGeneric<3, T> changeBasis(const ShGeneric<3, T> &b0, 00123 const ShGeneric<3, T> &b1, const ShGeneric<3, T> &b2, const ShGeneric<3, T> &v); 00124 00125 } 00126 00127 #include "ShFuncImpl.hpp" 00128 00129 #endif // SHUTIL_FUNC_HPP