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bufferSpec.h
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2 // Copyright 2016 Pixar
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5 // with the following modification; you may not use this file except in
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24 #ifndef PXR_IMAGING_HD_BUFFER_SPEC_H
25 #define PXR_IMAGING_HD_BUFFER_SPEC_H
26 
27 #include "pxr/pxr.h"
28 #include "pxr/imaging/hd/api.h"
29 #include "pxr/imaging/hd/version.h"
30 #include "pxr/imaging/hd/types.h"
31 #include "pxr/base/tf/stl.h"
32 #include "pxr/base/tf/token.h"
33 #include <vector>
34 
35 PXR_NAMESPACE_OPEN_SCOPE
36 
37 
38 typedef std::vector<struct HdBufferSpec> HdBufferSpecVector;
39 
53 struct HdBufferSpec final {
55  HdBufferSpec(TfToken const &name, HdTupleType tupleType) :
56  name(name), tupleType(tupleType) {}
57 
59  template<typename T>
60  static void GetBufferSpecs(T const &sources,
61  HdBufferSpecVector *bufferSpecs) {
62  for (auto const &src : sources) {
63  if (src->IsValid()) {
64  src->GetBufferSpecs(bufferSpecs);
65  }
66  }
67  }
68 
71  HD_API
72  static bool IsSubset(HdBufferSpecVector const &subset,
73  HdBufferSpecVector const &superset);
74 
77  HD_API
78  static HdBufferSpecVector ComputeUnion(HdBufferSpecVector const &spec1,
79  HdBufferSpecVector const &spec2);
80 
83  HD_API
84  static HdBufferSpecVector ComputeDifference(HdBufferSpecVector const &spec1,
85  HdBufferSpecVector const &spec2);
86 
88  HD_API
89  static void Dump(HdBufferSpecVector const &specs);
90 
92  bool operator == (HdBufferSpec const &other) const {
93  return name == other.name && tupleType == other.tupleType;
94  }
95  bool operator != (HdBufferSpec const &other) const {
96  return !(*this == other);
97  }
98 
100  bool operator < (HdBufferSpec const &other) const {
101  return name < other.name || (name == other.name &&
102  tupleType < other.tupleType);
103  }
104 
105  TfToken name;
106  HdTupleType tupleType;
107 };
108 
109 
110 PXR_NAMESPACE_CLOSE_SCOPE
111 
112 #endif // PXR_IMAGING_HD_BUFFER_SPEC_H
HdTupleType represents zero, one, or more values of the same HdType.
Definition: types.h:239
static HD_API void Dump(HdBufferSpecVector const &specs)
Debug output.
static HD_API HdBufferSpecVector ComputeDifference(HdBufferSpecVector const &spec1, HdBufferSpecVector const &spec2)
Returns difference set of spec1 and spec2, i.e., entries in spec1 that are not in spec2...
bool operator==(HdBufferSpec const &other) const
Equality checks.
Definition: bufferSpec.h:92
Describes each named resource of buffer array.
Definition: bufferSpec.h:53
static HD_API bool IsSubset(HdBufferSpecVector const &subset, HdBufferSpecVector const &superset)
Returns true if subset is a subset of superset.
Token for efficient comparison, assignment, and hashing of known strings.
Definition: token.h:87
static HD_API HdBufferSpecVector ComputeUnion(HdBufferSpecVector const &spec1, HdBufferSpecVector const &spec2)
Returns union set of spec1 and spec2.
static void GetBufferSpecs(T const &sources, HdBufferSpecVector *bufferSpecs)
Util function for adding buffer specs of sources into bufferspecs.
Definition: bufferSpec.h:60
bool operator<(HdBufferSpec const &other) const
Ordering.
Definition: bufferSpec.h:100
HdBufferSpec(TfToken const &name, HdTupleType tupleType)
Constructor.
Definition: bufferSpec.h:55