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extComputationContextInternal.h
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2 // Copyright 2017 Pixar
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24 #ifndef HD_EXT_COMPUATION_CONTEXT_INTERNAL_H
25 #define HD_EXT_COMPUATION_CONTEXT_INTERNAL_H
26 
27 #include "pxr/pxr.h"
28 
29 #include "pxr/imaging/hd/extComputationContext.h"
30 
31 PXR_NAMESPACE_OPEN_SCOPE
32 
37 class Hd_ExtComputationContextInternal final : public HdExtComputationContext {
38 public:
39  Hd_ExtComputationContextInternal();
40  virtual ~Hd_ExtComputationContextInternal();
41 
48  virtual const VtValue &GetInputValue(const TfToken &name) const override;
49 
55  virtual const VtValue *GetOptionalInputValuePtr(
56  const TfToken &name) const override;
60  virtual void SetOutputValue(const TfToken &name,
61  const VtValue &output) override;
62 
63 
66  void SetInputValue(const TfToken &name, const VtValue &input);
67 
70  bool GetOutputValue(const TfToken &name, VtValue *output) const;
71 
74  bool HasComputationError();
75 
80  virtual void RaiseComputationError() override;
81 
82 private:
83  typedef std::map<TfToken, VtValue> ValueMap;
84 
85  ValueMap m_inputs;
86  ValueMap m_outputs;
87  bool m_compuationError;
88 
89 
90  Hd_ExtComputationContextInternal(const Hd_ExtComputationContextInternal &)
91  = delete;
92  Hd_ExtComputationContextInternal &operator = (
93  const Hd_ExtComputationContextInternal &) = delete;
94 
95 };
96 
97 PXR_NAMESPACE_CLOSE_SCOPE
98 
99 #endif // HD_EXT_COMPUATION_CONTEXT_INTERNAL_H
Interface class that defines the execution environment for the client to run a computation.
virtual const VtValue * GetOptionalInputValuePtr(const TfToken &name) const =0
Obtains the value of an named input to the computation.
virtual const VtValue & GetInputValue(const TfToken &name) const =0
Obtains the value of an named input to the computation.
Token for efficient comparison, assignment, and hashing of known strings.
Definition: token.h:89
virtual void SetOutputValue(const TfToken &name, const VtValue &output)=0
Set the value of the specified output.
virtual void RaiseComputationError()=0
Called to indicate an error occurred while executing a computation so that its output are invalid...
Provides a container which may hold any type, and provides introspection and iteration over array typ...
Definition: value.h:182