/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield * * This library is open source and may be redistributed and/or modified under * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or * (at your option) any later version. The full license is in LICENSE file * included with this distribution, and on the openscenegraph.org website. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * OpenSceneGraph Public License for more details. */ #ifndef OSGUTIL_CONVERTVEC #define OSGUTIL_CONVERTVEC 1 namespace osgUtil { template <typename InType, typename OutType, unsigned int InSize = InType::num_components, unsigned int OutSize = OutType::num_components> struct ConvertVec { static void convert(InType & in, OutType & out) {} }; template <typename InType, typename OutType> struct ConvertVec<InType, OutType, 2, 2> { static void convert(InType & in, OutType & out) { out.set(static_cast<typename OutType::value_type>(in.x()), static_cast<typename OutType::value_type>(in.y())); } }; template <typename InType, typename OutType> struct ConvertVec<InType, OutType, 2, 3> { static void convert(InType & in, OutType & out) { out.set(static_cast<typename OutType::value_type>(in.x()), static_cast<typename OutType::value_type>(in.y()), static_cast<typename OutType::value_type>(0.0)); } }; template <typename InType, typename OutType> struct ConvertVec<InType, OutType, 2, 4> { static void convert(InType & in, OutType & out) { out.set(static_cast<typename OutType::value_type>(in.x()), static_cast<typename OutType::value_type>(in.y()), static_cast<typename OutType::value_type>(0.0), static_cast<typename OutType::value_type>(1.0)); } }; template <typename InType, typename OutType> struct ConvertVec<InType, OutType, 3, 2> { static void convert(InType & in, OutType & out) { out.set(static_cast<typename OutType::value_type>(in.x()), static_cast<typename OutType::value_type>(in.y())); } }; template <typename InType, typename OutType> struct ConvertVec<InType, OutType, 3, 3> { static void convert(InType & in, OutType & out) { out.set(static_cast<typename OutType::value_type>(in.x()), static_cast<typename OutType::value_type>(in.y()), static_cast<typename OutType::value_type>(in.z())); } }; template <typename InType, typename OutType> struct ConvertVec<InType, OutType, 3, 4> { static void convert(InType & in, OutType & out) { out.set(static_cast<typename OutType::value_type>(in.x()), static_cast<typename OutType::value_type>(in.y()), static_cast<typename OutType::value_type>(in.z()), static_cast<typename OutType::value_type>(1.0)); } }; template <typename InType, typename OutType> struct ConvertVec<InType, OutType, 4, 2> { static void convert(InType & in, OutType & out) { out.set(static_cast<typename OutType::value_type>(in.x()/in.w()), static_cast<typename OutType::value_type>(in.y()/in.w())); } }; template <typename InType, typename OutType> struct ConvertVec<InType, OutType, 4, 3> { static void convert(InType & in, OutType & out) { out.set(static_cast<typename OutType::value_type>(in.x()/in.w()), static_cast<typename OutType::value_type>(in.y()/in.w()), static_cast<typename OutType::value_type>(in.z()/in.w())); } }; template <typename InType, typename OutType> struct ConvertVec<InType, OutType, 4, 4> { static void convert(InType & in, OutType & out) { out.set(static_cast<typename OutType::value_type>(in.x()), static_cast<typename OutType::value_type>(in.y()), static_cast<typename OutType::value_type>(in.z()), static_cast<typename OutType::value_type>(in.w())); } }; } // end of osg namespace #endif // ** OSG_CONVERTVEC ** //