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