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computation.h
1 //
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 HD_COMPUTATION_H
25 #define HD_COMPUTATION_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/bufferSpec.h"
31 #include "pxr/imaging/hd/perfLog.h"
32 #include <boost/shared_ptr.hpp>
33 #include <vector>
34 
35 PXR_NAMESPACE_OPEN_SCOPE
36 
37 
38 typedef boost::shared_ptr<class HdBufferArrayRange> HdBufferArrayRangeSharedPtr;
39 typedef boost::shared_ptr<class HdComputation> HdComputationSharedPtr;
40 typedef std::vector<HdComputationSharedPtr> HdComputationVector;
41 
51 {
52 public:
53  HD_API
54  virtual ~HdComputation();
55 
57  virtual void Execute(
58  HdBufferArrayRangeSharedPtr const &range,
59  HdResourceRegistry *resourceRegistry) = 0;
60 
66  virtual int GetNumOutputElements() const = 0;
67 
71  virtual void GetBufferSpecs(HdBufferSpecVector *specs) const = 0;
72 
77  bool IsValid() { return true; }
78 };
79 
80 
81 PXR_NAMESPACE_CLOSE_SCOPE
82 
83 #endif // HD_COMPUTATION_H
virtual int GetNumOutputElements() const =0
Returns the size of its destination buffer (located by range argument of Execute()).
bool IsValid()
This function is needed as HdComputation shares a templatized interface with HdBufferSource.
Definition: computation.h:77
A central registry of all GPU resources.
virtual void Execute(HdBufferArrayRangeSharedPtr const &range, HdResourceRegistry *resourceRegistry)=0
Execute computation.
An interface class for GPU computation.
Definition: computation.h:50
virtual void GetBufferSpecs(HdBufferSpecVector *specs) const =0
Add the buffer spec for this computation into given bufferspec vector.