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extCompGpuPrimvarBufferSource.h
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2 // Copyright 2018 Pixar
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24 #ifndef PXR_IMAGING_HD_ST_EXT_COMP_GPU_PRIMVAR_BUFFER_SOURCE_H
25 #define PXR_IMAGING_HD_ST_EXT_COMP_GPU_PRIMVAR_BUFFER_SOURCE_H
26 
27 #include "pxr/pxr.h"
28 #include "pxr/imaging/hdSt/api.h"
29 #include "pxr/imaging/hd/bufferSource.h"
30 #include "pxr/imaging/hd/types.h"
31 
32 #include "pxr/base/tf/token.h"
33 
34 #include "pxr/usd/sdf/path.h"
35 
36 PXR_NAMESPACE_OPEN_SCOPE
37 
42 public:
44  HdTupleType const & valueType,
45  int numElements,
46  SdfPath const& compId);
47 
48  HDST_API
49  virtual ~HdStExtCompGpuPrimvarBufferSource() = default;
50 
51  HDST_API
52  virtual size_t ComputeHash() const override;
53 
54  HDST_API
55  virtual bool Resolve() override;
56 
57  HD_API
58  virtual TfToken const &GetName() const override;
59 
60  HDST_API
61  virtual size_t GetNumElements() const override;
62 
63  HD_API
64  virtual HdTupleType GetTupleType() const override;
65 
66  HDST_API
67  virtual void GetBufferSpecs(HdBufferSpecVector *specs) const override;
68 
69 protected:
70  virtual bool _CheckValid() const override;
71 
72 private:
73  TfToken _name;
74  HdTupleType _tupleType;
75  size_t _numElements;
76  SdfPath _compId;
77 
80  const HdStExtCompGpuPrimvarBufferSource &) = delete;
82  const HdStExtCompGpuPrimvarBufferSource &) = delete;
83 };
84 
85 PXR_NAMESPACE_CLOSE_SCOPE
86 
87 #endif // PXR_IMAGING_HD_ST_EXT_COMP_GPU_PRIMVAR_BUFFER_SOURCE_H
virtual HD_API TfToken const & GetName() const override
Return the name of this buffer source.
virtual HD_API HdTupleType GetTupleType() const override
Returns the data type and count (array size) for this buffer source.
HdTupleType represents zero, one, or more values of the same HdType.
Definition: types.h:239
virtual HDST_API bool Resolve() override
Prepare the access of GetData().
Token for efficient comparison, assignment, and hashing of known strings.
Definition: token.h:87
A abstract base class for pure cpu computation.
Definition: bufferSource.h:235
A path value used to locate objects in layers or scenegraphs.
Definition: path.h:288
A buffer source mapped to an output of an ExtComp CPU computation.
virtual HDST_API size_t ComputeHash() const override
Computes and returns a hash value for the underlying data.
virtual HDST_API void GetBufferSpecs(HdBufferSpecVector *specs) const override
Add the buffer spec for this buffer source into given bufferspec vector.
virtual bool _CheckValid() const override
Checks the validity of the source buffer.
virtual HDST_API size_t GetNumElements() const override
Returns the number of elements (e.g.