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half.h
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1 //
2 // Copyright 2016 Pixar
3 //
4 // Licensed under the Apache License, Version 2.0 (the "Apache License")
5 // with the following modification; you may not use this file except in
6 // compliance with the Apache License and the following modification to it:
7 // Section 6. Trademarks. is deleted and replaced with:
8 //
9 // 6. Trademarks. This License does not grant permission to use the trade
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11 // and its affiliates, except as required to comply with Section 4(c) of
12 // the License and to reproduce the content of the NOTICE file.
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14 // You may obtain a copy of the Apache License at
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23 //
24 #ifndef PXR_BASE_GF_HALF_H
25 #define PXR_BASE_GF_HALF_H
26 
27 /// \file gf/half.h
28 ///
29 /// This header serves to simply bring in the half float datatype and
30 /// provide a hash_value function. For documentation, of the half type,
31 /// please see the half header in ilmbase_half.h.
32 
33 #include "pxr/pxr.h"
36 #include "pxr/base/gf/traits.h"
37 
38 #include <type_traits>
39 
41 
42 /// A 16-bit floating point data type.
44 
45 namespace pxr_half {
46  /// Overload hash_value for half.
47  template<typename Half>
48  inline
50  hash_value(const Half& h) { return h.bits(); }
51 }
52 
53 template <>
55  public std::integral_constant<bool, true>{};
56 
58 
59 
60 #endif // PXR_BASE_GF_HALF_H
GLint GLint GLsizei GLint GLenum GLenum type
Definition: glcorearb.h:107
std::enable_if< std::is_same< Half, half >::value, size_t >::type hash_value(const Half &h)
Overload hash_value for half.
Definition: half.h:50
GLfloat GLfloat GLfloat GLfloat h
Definition: glcorearb.h:2001
PXR_NAMESPACE_CLOSE_SCOPE PXR_NAMESPACE_OPEN_SCOPE
Definition: path.h:1375
#define PXR_NAMESPACE_CLOSE_SCOPE
Definition: pxr.h:91
GLsizei const GLfloat * value
Definition: glcorearb.h:823