cpuVertexBuffer.h
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2 // Copyright 2013 Pixar
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24 
25 #ifndef OPENSUBDIV3_OSD_CPU_VERTEX_BUFFER_H
26 #define OPENSUBDIV3_OSD_CPU_VERTEX_BUFFER_H
27 
28 #include "../version.h"
29 
30 #include <cstddef>
31 
32 namespace OpenSubdiv {
33 namespace OPENSUBDIV_VERSION {
34 
35 namespace Osd {
36 
43 public:
45  static CpuVertexBuffer * Create(int numElements, int numVertices,
46  void *deviceContext = NULL);
47 
50 
53  void UpdateData(const float *src, int startVertex, int numVertices,
54  void *deviceContext = NULL);
55 
57  int GetNumElements() const;
58 
60  int GetNumVertices() const;
61 
63  float * BindCpuBuffer();
64 
65 protected:
67  CpuVertexBuffer(int numElements, int numVertices);
68 
69 private:
70  int _numElements;
71  int _numVertices;
72  float *_cpuBuffer;
73 };
74 
75 
76 } // end namespace Osd
77 
78 } // end namespace OPENSUBDIV_VERSION
79 using namespace OPENSUBDIV_VERSION;
80 
81 } // end namespace OpenSubdiv
82 
83 #endif // OPENSUBDIV3_OSD_CPU_VERTEX_BUFFER_H
Concrete vertex buffer class for cpu subvision.
float * BindCpuBuffer()
Returns the address of CPU buffer.
int GetNumVertices() const
Returns how many vertices allocated in this vertex buffer.
int GetNumElements() const
Returns how many elements defined in this vertex buffer.
void UpdateData(const float *src, int startVertex, int numVertices, void *deviceContext=NULL)
static CpuVertexBuffer * Create(int numElements, int numVertices, void *deviceContext=NULL)
Creator. Returns NULL if error.
CpuVertexBuffer(int numElements, int numVertices)
Constructor.