All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
compExtCompInputSource.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
10 // names, trademarks, service marks, or product names of the Licensor
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
20 // distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
21 // KIND, either express or implied. See the Apache License for the specific
22 // language governing permissions and limitations under the Apache License.
23 //
24 
25 #ifndef HD_COMP_EXT_COMP_INPUT_SOURCE_H
26 #define 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 PXR_NAMESPACE_OPEN_SCOPE
34 
36 
37 typedef boost::shared_ptr<HdExtCompCpuComputation>
38  HdExtCompCpuComputationSharedPtr;
39 
44 class Hd_CompExtCompInputSource final : public Hd_ExtCompInputSource {
45 public:
48  HD_API
49  Hd_CompExtCompInputSource(const TfToken &inputName,
50  const HdExtCompCpuComputationSharedPtr &source,
51  const TfToken &sourceOutputName);
52 
53  HD_API
54  virtual ~Hd_CompExtCompInputSource() = default;
55 
57  HD_API
58  virtual bool Resolve() override;
59 
61  HD_API
62  virtual const VtValue &GetValue() const override;
63 
64 protected:
66  virtual bool _CheckValid() const override;
67 
68 private:
69  HdExtCompCpuComputationSharedPtr _source;
70  size_t _sourceOutputIdx;
71 
72  Hd_CompExtCompInputSource() = delete;
73  Hd_CompExtCompInputSource(const Hd_CompExtCompInputSource &) = delete;
74  Hd_CompExtCompInputSource &operator = (const Hd_CompExtCompInputSource &)
75  = delete;
76 };
77 
78 PXR_NAMESPACE_CLOSE_SCOPE
79 
80 #endif // 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: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().