type_half.hpp
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29 #ifndef glm_core_type_half
30 #define glm_core_type_half
31 
32 #include <cstdlib>
33 
34 namespace glm{
35 namespace detail
36 {
37  typedef short hdata;
38 
39  float toFloat32(hdata value);
40  hdata toFloat16(float const & value);
41 
42  class half
43  {
44  public:
45  // Constructors
46  GLM_FUNC_DECL half();
47  GLM_FUNC_DECL half(half const & s);
48 
49  template <typename U>
50  GLM_FUNC_DECL explicit half(U const & s);
51 
52  // Cast
53  //template <typename U>
54  //GLM_FUNC_DECL operator U() const;
55  GLM_FUNC_DECL operator float() const;
56 
57  // Unary updatable operators
58  GLM_FUNC_DECL half& operator= (half const & s);
59  GLM_FUNC_DECL half& operator+=(half const & s);
60  GLM_FUNC_DECL half& operator-=(half const & s);
61  GLM_FUNC_DECL half& operator*=(half const & s);
62  GLM_FUNC_DECL half& operator/=(half const & s);
63  GLM_FUNC_DECL half& operator++();
64  GLM_FUNC_DECL half& operator--();
65 
66  GLM_FUNC_DECL float toFloat() const{return toFloat32(data);}
67 
68  GLM_FUNC_DECL hdata _data() const{return data;}
69 
70  private:
71  hdata data;
72  };
73 
74  half operator+ (half const & s1, half const & s2);
75 
76  half operator- (half const & s1, half const & s2);
77 
78  half operator* (half const & s1, half const & s2);
79 
80  half operator/ (half const & s1, half const & s2);
81 
82  // Unary constant operators
83  half operator- (half const & s);
84 
85  half operator-- (half const & s, int);
86 
87  half operator++ (half const & s, int);
88 
89  bool operator==(
90  detail::half const & x,
91  detail::half const & y);
92 
93  bool operator!=(
94  detail::half const & x,
95  detail::half const & y);
96 
97  bool operator<(
98  detail::half const & x,
99  detail::half const & y);
100 
101  bool operator<=(
102  detail::half const & x,
103  detail::half const & y);
104 
105  bool operator>(
106  detail::half const & x,
107  detail::half const & y);
108 
109  bool operator>=(
110  detail::half const & x,
111  detail::half const & y);
112 
113 }//namespace detail
114 }//namespace glm
115 
116 #include "type_half.inl"
117 
118 #endif//glm_core_type_half
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