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glVertexBuffer.h
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2 // Copyright 2013 Pixar
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5 // with the following modification; you may not use this file except in
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24 
25 #ifndef OSD_GL_VERTEX_BUFFER_H
26 #define OSD_GL_VERTEX_BUFFER_H
27 
28 #include "../version.h"
29 
30 #include "../osd/opengl.h"
31 
32 namespace OpenSubdiv {
33 namespace OPENSUBDIV_VERSION {
34 
35 namespace Osd {
36 
45 public:
47  static GLVertexBuffer * Create(int numElements, int numVertices);
48 
51 
54  void UpdateData(const float *src, int startVertex, int numVertices);
55 
57  int GetNumElements() const;
58 
60  int GetNumVertices() const;
61 
63  GLuint BindVBO();
64 
65 protected:
67  GLVertexBuffer(int numElements, int numVertices);
68 
71  bool allocate();
72 
73 private:
74  int _numElements;
75  int _numVertices;
76  GLuint _vbo;
77 };
78 
79 } // end namespace Osd
80 
81 } // end namespace OPENSUBDIV_VERSION
82 using namespace OPENSUBDIV_VERSION;
83 
84 } // end namespace OpenSubdiv
85 
86 #endif // OSD_GL_VERTEX_BUFFER_H
87 
GLVertexBuffer(int numElements, int numVertices)
Constructor.
GLuint BindVBO()
Returns the GL buffer object.
int GetNumElements() const
Returns how many elements defined in this vertex buffer.
Concrete vertex buffer class for GLSL subvision and OpenGL drawing.
static GLVertexBuffer * Create(int numElements, int numVertices)
Creator. Returns NULL if error.
int GetNumVertices() const
Returns how many vertices allocated in this vertex buffer.
void UpdateData(const float *src, int startVertex, int numVertices)