OpenSubdiv
cpuD3D11VertexBuffer.h
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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
Concrete vertex buffer class for Cpu subdivision and DirectX drawing.
ID3D11Buffer * BindD3D11Buffer(ID3D11DeviceContext *deviceContext)
Returns the D3D11 buffer object.
void UpdateData(const float *src, int startVertex, int numVertices, void *deviceContext=NULL)
ID3D11Buffer * BindVBO(ID3D11DeviceContext *deviceContext)
Returns the D3D11 buffer object (for Osd::Mesh interface)
float * BindCpuBuffer()
Returns the address of CPU buffer.
static CpuD3D11VertexBuffer * Create(int numElements, int numVertices, ID3D11DeviceContext *deviceContext)
Creator. Returns NULL if error.
CpuD3D11VertexBuffer(int numElements, int numVertices)
Constructor.
int GetNumVertices() const
Returns how many vertices allocated in this vertex buffer.
int GetNumElements() const
Returns how many elements defined in this vertex buffer.