Cortex  10.0.0-a4
PTCParticleReader.h
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34 
35 #ifndef IE_CORERI_PTCPARTICLEREADER_H
36 #define IE_CORERI_PTCPARTICLEREADER_H
37 
38 #include "IECore/CompoundData.h"
39 #include "IECore/ParticleReader.h"
40 #include "IECore/VectorTypedData.h"
41 #include "IECoreRI/Export.h"
42 #include "IECoreRI/TypeIds.h"
43 #include "IECoreRI/PTCParticleIO.h"
44 
45 namespace IECoreRI
46 {
47 
51 class IECORERI_API PTCParticleReader : public IECore::ParticleReader
52 {
53  public :
54 
55  IE_CORE_DECLARERUNTIMETYPEDEXTENSION( PTCParticleReader, PTCParticleReaderTypeId, IECore::ParticleReader );
56 
58  PTCParticleReader( const std::string &fileName );
59  ~PTCParticleReader() override;
60 
61  static bool canRead( const std::string &fileName );
62 
63  unsigned long numParticles() override;
64  void attributeNames( std::vector<std::string> &names ) override;
65  IECore::DataPtr readAttribute( const std::string &name ) override;
66 
67  protected :
68 
74  IECore::ObjectPtr doOperation( const IECore::CompoundObject * operands ) override;
75 
76  std::string positionPrimVarName() override;
77 
78  private :
79 
80  static const ReaderDescription<PTCParticleReader> m_readerDescription;
81 
82  void *m_ptcFile;
83 
84  // makes sure that m_ptcFile is open.
85  // returns true on success and false on failure.
86  bool open();
87 
88  // closes current ptcFile.
89  void close();
90 
91  struct AttrInfo
92  {
93  PTCParticleIO::VarType type;
94  const float *sourcePtr;
95  IECore::DataPtr targetData;
96  };
97 
98  std::string m_streamFileName;
99 
100  struct PTCParticleIO::PTCHeader m_header;
101  float *m_userDataBuffer;
102 
103  // reads several attributes in one operation and returns them in a CompoundData.
104  IECore::CompoundDataPtr readAttributes( const std::vector<std::string> &names );
105 };
106 
107 IE_CORE_DECLAREPTR( PTCParticleReader );
108 
109 } // namespace IECoreRI
110 
111 #endif // IE_CORERI_PTCPARTICLEREADER_H
Definition: PTCParticleReader.h:51
Definition: CompoundObject.h:46
Definition: Reader.h:128
The IECoreRI namespace holds all the functionality implemented in libIECoreRI.
Definition: IECoreRI.h:41
Definition: ParticleReader.h:52