Source/System/NodeCores/Drawables/Geometry/PropertiesBase/OSGGeoVectorPropertyConversion.inl

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  36
  37 //---------------------------------------------------------------------------
  38 //  Includes
  39 //---------------------------------------------------------------------------
  40
  41 OSG_BEGIN_NAMESPACE
  42
  43 //
  44 // Normalize funcs
  45 //
  46
  47 template <class ValueTypeT>
  48 inline typename detail::NoNormalizationFunc<ValueTypeT>::ValueType
  49 detail::NoNormalizationFunc<ValueTypeT>::apply(
  50     const ValueType& src, const Real64, const Real64)
  51 {
  52     return src;
  53 }
  54
  55 template <class ValueTypeT>
  56 inline typename detail::InNormalizationFunc<ValueTypeT>::ValueType
  57 detail::InNormalizationFunc<ValueTypeT>::apply(
  58     const ValueType& src, const Real64 scale, const Real64 offset)
  59 {
  60     return static_cast<ValueType>((scale * src) + offset);
  61 }
  62
  63 template <class ValueTypeT>
  64 inline typename detail::OutNormalizationFunc<ValueTypeT>::ValueType
  65 detail::OutNormalizationFunc<ValueTypeT>::apply(
  66     const ValueType& src, const Real64 scale, const Real64 offset)
  67 {
  68     return static_cast<ValueType>((src - offset) / scale);
  69 }
  70
  71 //
  72 // Access funcs
  73 //
  74
  75 template <class ValueTypeT>
  76 inline typename detail::VectorElementAccessFunc<ValueTypeT>::ElementType
  77 detail::VectorElementAccessFunc<ValueTypeT>::apply(
  78     const ValueType& src, const UInt32 index)
  79 {
  80     return src[index];
  81 }
  82
  83 template <class ValueTypeT>
  84 inline typename detail::Fixed32VectorElementAccessFunc<ValueTypeT>::ElementType
  85 detail::Fixed32VectorElementAccessFunc<ValueTypeT>::apply(
  86     const ValueType& src, const UInt32 index)
  87 {
  88     return src[index].getValue();
  89 }
  90
  91 //
  92 // Convert funcs
  93 //
  94
  95 template <class DestTypeT,
  96           class SourceTypeT,
  97           template <class> class NormalizeFuncT,
  98           template <class> class ElementAccessFuncT>
  99 inline void
 100 detail::GeoConvertFunc<DestTypeT,
 101                        SourceTypeT,
 102                        NormalizeFuncT,
 103                        ElementAccessFuncT>::convert(
 104           DestType& dest,  const SourceType& src,
 105     const Real64    scale, const Real64      offset)
 106 {
 107     if(SourceType::_uiSize >= DestType::_uiSize)
 108     {
 109         UInt32 i;
 110         for(i = 0; i < DestType::_uiSize; ++i)
 111         {
 112             dest[i] = static_cast<DestElementType>(
 113                 NormFunc::apply(AccessFunc::apply(src, i), scale, offset));
 114         }
 115     }
 116     else
 117     {
 118         UInt32 i;
 119         for(i = 0; i < SourceType::_uiSize; ++i)
 120         {
 121             dest[i] = static_cast<DestElementType>(
 122                 NormFunc::apply(AccessFunc::apply(src, i), scale, offset));
 123         }
 124
 125         for(; i < DestType::_uiSize; ++i)
 126         {
 127             dest[i] = static_cast<DestElementType>(
 128                 NormFunc::apply(
 129                     AccessFunc::apply(SourceType::Null, i), scale, offset));
 130         }
 131     }
 132 }
 133
 134 template <class                  ValueTypeT,
 135           template <class> class ElementAccessFuncT>
 136 inline void
 137 detail::GeoConvertFunc<ValueTypeT,
 138                        ValueTypeT,
 139                        detail::NoNormalizationFunc,
 140                        ElementAccessFuncT          >::convert(
 141           DestType& dest,  const SourceType& src,
 142     const Real64    scale, const Real64      offset)
 143 {
 144     dest = src;
 145 }
 146
 147 OSG_END_NAMESPACE