103 lines
2.8 KiB
C++
103 lines
2.8 KiB
C++
//
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// Copyright 2015 Pixar
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//
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// Licensed under the terms set forth in the LICENSE.txt file available at
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// https://opensubdiv.org/license.
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//
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#ifndef OPENSUBDIV3_OSD_CUDA_PATCH_TABLE_H
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#define OPENSUBDIV3_OSD_CUDA_PATCH_TABLE_H
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#include "../version.h"
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#include "../osd/nonCopyable.h"
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#include "../osd/types.h"
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#include <vector>
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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namespace Far{
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class PatchTable;
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};
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namespace Osd {
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/// \brief CUDA patch table
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///
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/// This class is a cuda buffer representation of Far::PatchTable.
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///
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/// CudaEvaluator consumes this table to evaluate on the patches.
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///
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///
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class CudaPatchTable : private NonCopyable<CudaPatchTable> {
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public:
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/// Creator. Returns NULL if error
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static CudaPatchTable *Create(Far::PatchTable const *patchTable,
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void *deviceContext = NULL);
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/// Destructor
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~CudaPatchTable();
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/// Returns the cuda memory of the array of Osd::PatchArray buffer
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void *GetPatchArrayBuffer() const { return _patchArrays; }
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/// Returns the cuda memory of the patch control vertices
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void *GetPatchIndexBuffer() const { return _indexBuffer; }
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/// Returns the cuda memory of the array of Osd::PatchParam buffer
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void *GetPatchParamBuffer() const { return _patchParamBuffer; }
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/// Returns the cuda memory of the array of Osd::PatchArray buffer
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void *GetVaryingPatchArrayBuffer() const {
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return _varyingPatchArrays;
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}
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/// Returns the cuda memory of the array of varying control vertices
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void *GetVaryingPatchIndexBuffer() const {
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return _varyingIndexBuffer;
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}
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/// Returns the number of face-varying channels buffers
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int GetNumFVarChannels() const { return (int)_fvarPatchArrays.size(); }
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/// Returns the cuda memory of the array of Osd::PatchArray buffer
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void *GetFVarPatchArrayBuffer(int fvarChannel) const {
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return _fvarPatchArrays[fvarChannel];
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}
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/// Returns the cuda memory of the array of face-varying control vertices
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void *GetFVarPatchIndexBuffer(int fvarChannel = 0) const {
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return _fvarIndexBuffers[fvarChannel];
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}
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/// Returns the cuda memory of the array of face-varying param
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void *GetFVarPatchParamBuffer(int fvarChannel = 0) const {
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return _fvarParamBuffers[fvarChannel];
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}
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protected:
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CudaPatchTable();
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bool allocate(Far::PatchTable const *patchTable);
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void *_patchArrays;
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void *_indexBuffer;
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void *_patchParamBuffer;
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void *_varyingPatchArrays;
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void *_varyingIndexBuffer;
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std::vector<void *> _fvarPatchArrays;
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std::vector<void *> _fvarIndexBuffers;
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std::vector<void *> _fvarParamBuffers;
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};
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} // end namespace Osd
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} // end namespace OPENSUBDIV_VERSION
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using namespace OPENSUBDIV_VERSION;
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} // end namespace OpenSubdiv
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#endif // OPENSUBDIV3_OSD_CUDA_PATCH_TABLE_H
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