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compExtCompInputSource.h
1 //
2 // Copyright 2017 Pixar
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5 // with the following modification; you may not use this file except in
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24 
25 #ifndef PXR_IMAGING_HD_COMP_EXT_COMP_INPUT_SOURCE_H
26 #define PXR_IMAGING_HD_COMP_EXT_COMP_INPUT_SOURCE_H
27 
28 #include "pxr/pxr.h"
29 #include "pxr/imaging/hd/api.h"
30 #include "pxr/imaging/hd/version.h"
31 #include "pxr/imaging/hd/extCompInputSource.h"
32 
33 #include <memory>
34 
35 PXR_NAMESPACE_OPEN_SCOPE
36 
38 
39 using HdExtCompCpuComputationSharedPtr =
40  std::shared_ptr<HdExtCompCpuComputation>;
41 
46 class Hd_CompExtCompInputSource final : public Hd_ExtCompInputSource {
47 public:
50  HD_API
51  Hd_CompExtCompInputSource(const TfToken &inputName,
52  const HdExtCompCpuComputationSharedPtr &source,
53  const TfToken &sourceOutputName);
54 
55  HD_API
56  virtual ~Hd_CompExtCompInputSource() = default;
57 
59  HD_API
60  virtual bool Resolve() override;
61 
63  HD_API
64  virtual const VtValue &GetValue() const override;
65 
66 protected:
68  virtual bool _CheckValid() const override;
69 
70 private:
71  HdExtCompCpuComputationSharedPtr _source;
72  size_t _sourceOutputIdx;
73 
74  Hd_CompExtCompInputSource() = delete;
75  Hd_CompExtCompInputSource(const Hd_CompExtCompInputSource &) = delete;
76  Hd_CompExtCompInputSource &operator = (const Hd_CompExtCompInputSource &)
77  = delete;
78 };
79 
80 PXR_NAMESPACE_CLOSE_SCOPE
81 
82 #endif // PXR_IMAGING_HD_COMP_EXT_COMP_INPUT_SOURCE_H
A Buffer Source that represents a CPU implementation of a ExtComputation.
Token for efficient comparison, assignment, and hashing of known strings.
Definition: token.h:87
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:174
virtual bool Resolve()=0
Prepare the access of GetData().