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sceneExtCompInputSource.h
1 //
2 // Copyright 2017 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.
13 //
14 // You may obtain a copy of the Apache License at
15 //
16 // http://www.apache.org/licenses/LICENSE-2.0
17 //
18 // Unless required by applicable law or agreed to in writing, software
19 // distributed under the Apache License with the above modification is
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21 // KIND, either express or implied. See the Apache License for the specific
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24 #ifndef HD_SCENE_EXT_COMP_INPUT_SOURCE_H
25 #define HD_SCENE_EXT_COMP_INPUT_SOURCE_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/extCompInputSource.h"
31 
32 #include "pxr/base/vt/value.h"
33 
34 PXR_NAMESPACE_OPEN_SCOPE
35 
40 class Hd_SceneExtCompInputSource : public Hd_ExtCompInputSource {
41 public:
43  HD_API
44  Hd_SceneExtCompInputSource(const TfToken &inputName, const VtValue &value);
45 
46  HD_API
47  virtual ~Hd_SceneExtCompInputSource() = default;
48 
50  HD_API
51  virtual bool Resolve() override;
52 
54  HD_API
55  virtual const VtValue &GetValue() const override;
56 
57 protected:
59  virtual bool _CheckValid() const override;
60 
61 private:
62  VtValue _value;
63 
64  // No copying, assignment or default construction.
65  Hd_SceneExtCompInputSource() = delete;
66  Hd_SceneExtCompInputSource(const Hd_SceneExtCompInputSource &) = delete;
67  Hd_SceneExtCompInputSource &operator = (const Hd_SceneExtCompInputSource &)
68  = delete;
69 };
70 
71 PXR_NAMESPACE_CLOSE_SCOPE
72 
73 #endif // HD_SCENE_EXT_COMP_INPUT_SOURCE_H
Token for efficient comparison, assignment, and hashing of known strings.
Definition: token.h:89
virtual bool _CheckValid() const =0
Checks the validity of the source buffer.
Provides a container which may hold any type, and provides introspection and iteration over array typ...
Definition: value.h:182
virtual bool Resolve()=0
Prepare the access of GetData().