mtlPatchTable.h
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2 // Copyright 2013 Pixar
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24 
25 #ifndef OPENSUBDIV3_OSD_MTL_PATCH_TABLE_H
26 #define OPENSUBDIV3_OSD_MTL_PATCH_TABLE_H
27 
28 #include "../version.h"
29 #include "../far/patchDescriptor.h"
30 #include "../osd/nonCopyable.h"
31 #include "../osd/types.h"
32 #include "../osd/mtlCommon.h"
33 
34 @protocol MTLDevice;
35 @protocol MTLBuffer;
36 
37 namespace OpenSubdiv
38 {
39  namespace OPENSUBDIV_VERSION
40  {
41  namespace Far
42  {
43  class PatchTable;
44  }
45 
46  namespace Osd
47  {
48  class MTLPatchTable : private NonCopyable<MTLPatchTable>
49  {
50  public:
51  typedef id<MTLBuffer> VertexBufferBinding;
52 
53  MTLPatchTable();
54  ~MTLPatchTable();
55 
56  template<typename DEVICE_CONTEXT>
57  static MTLPatchTable *Create(Far::PatchTable const *farPatchTable, DEVICE_CONTEXT context)
58  {
59  return Create(farPatchTable, context);
60  }
61 
62  static MTLPatchTable *Create(Far::PatchTable const *farPatchTable, MTLContext* context);
63 
64  PatchArrayVector const &GetPatchArrays() const { return _patchArrays; }
65  id<MTLBuffer> GetPatchIndexBuffer() const { return _indexBuffer; }
66  id<MTLBuffer> GetPatchParamBuffer() const { return _patchParamBuffer; }
67 
68  PatchArrayVector const &GetVaryingPatchArrays() const { return _varyingPatchArrays; }
69  id<MTLBuffer> GetVaryingPatchIndexBuffer() const { return _varyingPatchIndexBuffer; }
70 
71  int GetNumFVarChannels() const { return (int)_fvarPatchArrays.size(); }
72  PatchArrayVector const &GetFVarPatchArrays(int fvarChannel = 0) const { return _fvarPatchArrays[fvarChannel]; }
73  id<MTLBuffer> GetFVarPatchIndexBuffer(int fvarChannel = 0) const { return _fvarIndexBuffers[fvarChannel]; }
74  id<MTLBuffer> GetFVarPatchParamBuffer(int fvarChannel = 0) const { return _fvarParamBuffers[fvarChannel]; }
75 
76  protected:
77  bool allocate(Far::PatchTable const *farPatchTable, MTLContext* context);
78 
80 
81  id<MTLBuffer> _indexBuffer;
82  id<MTLBuffer> _patchParamBuffer;
83 
85 
86  id<MTLBuffer> _varyingPatchIndexBuffer;
87 
88  std::vector<PatchArrayVector> _fvarPatchArrays;
89  std::vector<id<MTLBuffer>> _fvarIndexBuffers;
90  std::vector<id<MTLBuffer>> _fvarParamBuffers;
91  };
92  } // end namespace Osd
93  } //end namespace OPENSUBDIV_VERSION
94 
95  using namespace OPENSUBDIV_VERSION;
96 } //end namespace OpenSubdiv
97 
98 #endif //end OPENSUBDIV3_OSD_MTL_PATCH_TABLE_H
Container for arrays of parametric patches.
Definition: patchTable.h:55
PatchArrayVector const & GetPatchArrays() const
Definition: mtlPatchTable.h:64
std::vector< PatchArrayVector > _fvarPatchArrays
Definition: mtlPatchTable.h:88
PatchArrayVector const & GetVaryingPatchArrays() const
Definition: mtlPatchTable.h:68
std::vector< id< MTLBuffer > > _fvarIndexBuffers
Definition: mtlPatchTable.h:89
std::vector< PatchArray > PatchArrayVector
Definition: types.h:98
std::vector< id< MTLBuffer > > _fvarParamBuffers
Definition: mtlPatchTable.h:90
id< MTLBuffer > GetFVarPatchParamBuffer(int fvarChannel=0) const
Definition: mtlPatchTable.h:74
static MTLPatchTable * Create(Far::PatchTable const *farPatchTable, DEVICE_CONTEXT context)
Definition: mtlPatchTable.h:57
id< MTLBuffer > GetFVarPatchIndexBuffer(int fvarChannel=0) const
Definition: mtlPatchTable.h:73
PatchArrayVector const & GetFVarPatchArrays(int fvarChannel=0) const
Definition: mtlPatchTable.h:72