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cpuD3D11VertexBuffer.h
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2 // Copyright 2013 Pixar
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24 
25 #ifndef OPENSUBDIV3_OSD_CPU_D3D11_VERTEX_BUFFER_H
26 #define OPENSUBDIV3_OSD_CPU_D3D11_VERTEX_BUFFER_H
27 
28 #include "../version.h"
29 #include <cstddef>
30 
31 struct ID3D11Buffer;
32 struct ID3D11Device;
33 struct ID3D11DeviceContext;
34 
35 namespace OpenSubdiv {
36 namespace OPENSUBDIV_VERSION {
37 
38 namespace Osd {
39 
49 public:
51  static CpuD3D11VertexBuffer * Create(int numElements, int numVertices,
52  ID3D11DeviceContext *deviceContext);
53 
55  virtual ~CpuD3D11VertexBuffer();
56 
59  void UpdateData(const float *src, int startVertex, int numVertices,
60  void *deviceContext = NULL);
61 
63  int GetNumElements() const;
64 
66  int GetNumVertices() const;
67 
69  float * BindCpuBuffer();
70 
72  ID3D11Buffer *BindD3D11Buffer(ID3D11DeviceContext *deviceContext);
73 
75  ID3D11Buffer *BindVBO(ID3D11DeviceContext *deviceContext) {
76  return BindD3D11Buffer(deviceContext);
77  }
78 
79 protected:
81  CpuD3D11VertexBuffer(int numElements, int numVertices);
82 
83  bool allocate(ID3D11Device *device);
84 
85 private:
86  int _numElements;
87  int _numVertices;
88  ID3D11Buffer *_d3d11Buffer;
89  float *_cpuBuffer;
90 };
91 
92 } // end namespace Osd
93 
94 } // end namespace OPENSUBDIV_VERSION
95 using namespace OPENSUBDIV_VERSION;
96 
97 } // end namespace OpenSubdiv
98 
99 #endif // OPENSUBDIV3_OSD_CPU_D3D11_VERTEX_BUFFER_H
ID3D11Buffer * BindD3D11Buffer(ID3D11DeviceContext *deviceContext)
Returns the D3D11 buffer object.
int GetNumVertices() const
Returns how many vertices allocated in this vertex buffer.
int GetNumElements() const
Returns how many elements defined in this vertex buffer.
ID3D11Buffer * BindVBO(ID3D11DeviceContext *deviceContext)
Returns the D3D11 buffer object (for Osd::Mesh interface)
void UpdateData(const float *src, int startVertex, int numVertices, void *deviceContext=NULL)
Concrete vertex buffer class for Cpu subdivision and DirectX drawing.
static CpuD3D11VertexBuffer * Create(int numElements, int numVertices, ID3D11DeviceContext *deviceContext)
Creator. Returns NULL if error.
float * BindCpuBuffer()
Returns the address of CPU buffer.
CpuD3D11VertexBuffer(int numElements, int numVertices)
Constructor.