mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
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120 lines
3.8 KiB
C++
120 lines
3.8 KiB
C++
//
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// Copyright 2015 Pixar
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//
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// Licensed under the Apache License, Version 2.0 (the "Apache License")
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// with the following modification; you may not use this file except in
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// compliance with the Apache License and the following modification to it:
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// Section 6. Trademarks. is deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the trade
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// names, trademarks, service marks, or product names of the Licensor
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// and its affiliates, except as required to comply with Section 4(c) of
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// the License and to reproduce the content of the NOTICE file.
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//
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// You may obtain a copy of the Apache License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the Apache License with the above modification is
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// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the Apache License for the specific
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// language governing permissions and limitations under the Apache 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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