cudaPatchTable.h

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//
//   Copyright 2015 Pixar
//
//   Licensed under the terms set forth in the LICENSE.txt file available at
//   https://opensubdiv.org/license.
//
 
#ifndef OPENSUBDIV3_OSD_CUDA_PATCH_TABLE_H
#define OPENSUBDIV3_OSD_CUDA_PATCH_TABLE_H
 
#include "../version.h"
 
#include "../osd/nonCopyable.h"
#include "../osd/types.h"
 
#include <vector>
 
namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {
 
namespace Far{
    class PatchTable;
};
 
namespace Osd {

class CudaPatchTable : private NonCopyable<CudaPatchTable> {
public:
    static CudaPatchTable *Create(Far::PatchTable const *patchTable,
                                  void *deviceContext = NULL);
    ~CudaPatchTable();

    void *GetPatchArrayBuffer() const { return _patchArrays; }

    void *GetPatchIndexBuffer() const { return _indexBuffer; }

    void *GetPatchParamBuffer() const { return _patchParamBuffer; }

    void *GetVaryingPatchArrayBuffer() const {
        return _varyingPatchArrays;
    }

    void *GetVaryingPatchIndexBuffer() const {
        return _varyingIndexBuffer;
    }

    int GetNumFVarChannels() const { return (int)_fvarPatchArrays.size(); }

    void *GetFVarPatchArrayBuffer(int fvarChannel) const {
        return _fvarPatchArrays[fvarChannel];
    }

    void *GetFVarPatchIndexBuffer(int fvarChannel = 0) const {
        return _fvarIndexBuffers[fvarChannel];
    }

    void *GetFVarPatchParamBuffer(int fvarChannel = 0) const {
        return _fvarParamBuffers[fvarChannel];
    }
 
protected:
    CudaPatchTable();
 
    bool allocate(Far::PatchTable const *patchTable);
 
    void *_patchArrays;
    void *_indexBuffer;
    void *_patchParamBuffer;
 
    void *_varyingPatchArrays;
    void *_varyingIndexBuffer;
 
    std::vector<void *> _fvarPatchArrays;
    std::vector<void *> _fvarIndexBuffers;
    std::vector<void *> _fvarParamBuffers;
};
 
}  // end namespace Osd
 
}  // end namespace OPENSUBDIV_VERSION
using namespace OPENSUBDIV_VERSION;
 
}  // end namespace OpenSubdiv
 
#endif  // OPENSUBDIV3_OSD_CUDA_PATCH_TABLE_H