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strategyBase.h
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2 // Copyright 2016 Pixar
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24 #ifndef HD_STRATEGY_BASE_H
25 #define HD_STRATEGY_BASE_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/bufferArray.h"
32 
33 #include "pxr/base/tf/token.h"
34 #include "pxr/base/vt/dictionary.h"
35 
36 #include <boost/shared_ptr.hpp>
37 
38 PXR_NAMESPACE_OPEN_SCOPE
39 
40 
41 typedef boost::shared_ptr<class HdBufferArray> HdBufferArraySharedPtr;
42 typedef boost::shared_ptr<class HdBufferArrayRange> HdBufferArrayRangeSharedPtr;
43 
49 public:
51  typedef size_t AggregationId;
52 
53  HD_API
54  virtual ~HdAggregationStrategy();
55 
57  virtual HdBufferArraySharedPtr CreateBufferArray(
58  TfToken const &role,
59  HdBufferSpecVector const &bufferSpecs,
60  HdBufferArrayUsageHint usageHint) = 0;
61 
63  virtual HdBufferArrayRangeSharedPtr CreateBufferArrayRange() = 0;
64 
65 
68  HdBufferSpecVector const &bufferSpecs,
69  HdBufferArrayUsageHint usageHint) const = 0;
70 
72  virtual HdBufferSpecVector GetBufferSpecs(
73  HdBufferArraySharedPtr const &bufferArray) const = 0;
74 
76  virtual size_t GetResourceAllocation(
77  HdBufferArraySharedPtr const &bufferArray,
78  VtDictionary &result) const = 0;
79 };
80 
81 
82 PXR_NAMESPACE_CLOSE_SCOPE
83 
84 #endif // HD_STRATEGY_BASE_H
size_t AggregationId
Aggregation ID.
Definition: strategyBase.h:51
The union provides a set of flags that provide hints to the memory management system about the proper...
Definition: bufferArray.h:74
Aggregation strategy base class.
Definition: strategyBase.h:48
A map with string keys and VtValue values.
Definition: dictionary.h:61
virtual HdBufferArraySharedPtr CreateBufferArray(TfToken const &role, HdBufferSpecVector const &bufferSpecs, HdBufferArrayUsageHint usageHint)=0
Factory for creating HdBufferArray.
Token for efficient comparison, assignment, and hashing of known strings.
Definition: token.h:89
virtual HdBufferArrayRangeSharedPtr CreateBufferArrayRange()=0
Factory for creating HdBufferArrayRange.
virtual HdBufferSpecVector GetBufferSpecs(HdBufferArraySharedPtr const &bufferArray) const =0
Returns the buffer specs from a given buffer array.
virtual AggregationId ComputeAggregationId(HdBufferSpecVector const &bufferSpecs, HdBufferArrayUsageHint usageHint) const =0
Returns id for given bufferSpecs to be used for aggregation.
virtual size_t GetResourceAllocation(HdBufferArraySharedPtr const &bufferArray, VtDictionary &result) const =0
Returns the accumulated GPU resource allocation 
 /// for items in the BufferArray passed as paramete...