mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
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149 lines
4.3 KiB
C++
149 lines
4.3 KiB
C++
//
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// Copyright 2013 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 OSD_CUDA_COMPUTE_CONTEXT_H
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#define OSD_CUDA_COMPUTE_CONTEXT_H
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#include "../version.h"
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#include "../far/subdivisionTables.h"
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#include "../far/vertexEditTables.h"
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#include "../osd/vertex.h"
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#include "../osd/vertexDescriptor.h"
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#include "../osd/nonCopyable.h"
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#include <stdlib.h>
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#include <vector>
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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class OsdCudaTable : OsdNonCopyable<OsdCudaTable> {
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public:
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template<typename T>
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static OsdCudaTable * Create(const std::vector<T> &table) {
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OsdCudaTable *result = new OsdCudaTable();
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if (not result->createCudaBuffer(table.size() * sizeof(T), table.empty() ? NULL : &table[0])) {
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delete result;
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return NULL;
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}
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return result;
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}
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virtual ~OsdCudaTable();
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void * GetCudaMemory() const;
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private:
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OsdCudaTable() : _devicePtr(NULL) {}
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bool createCudaBuffer(size_t size, const void *ptr);
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void *_devicePtr;
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};
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class OsdCudaHEditTable : OsdNonCopyable<OsdCudaHEditTable> {
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public:
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static OsdCudaHEditTable * Create(const FarVertexEditTables::VertexEditBatch &batch);
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virtual ~OsdCudaHEditTable();
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const OsdCudaTable * GetPrimvarIndices() const;
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const OsdCudaTable * GetEditValues() const;
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int GetOperation() const;
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int GetPrimvarOffset() const;
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int GetPrimvarWidth() const;
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private:
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OsdCudaHEditTable();
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OsdCudaTable *_primvarIndicesTable;
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OsdCudaTable *_editValuesTable;
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int _operation;
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int _primvarOffset;
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int _primvarWidth;
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};
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///
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/// \brief CUDA Refine Context
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///
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/// The CUDA implementation of the Refine module contextual functionality.
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///
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/// Contexts interface the serialized topological data pertaining to the
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/// geometric primitives with the capabilities of the selected discrete
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/// compute device.
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///
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class OsdCudaComputeContext : public OsdNonCopyable<OsdCudaComputeContext> {
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public:
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/// Creates an OsdCudaComputeContext instance
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///
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/// @param subdivisionTables the FarSubdivisionTables used for this Context.
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///
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/// @param vertexEditTables the FarVertexEditTables used for this Context.
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///
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static OsdCudaComputeContext * Create(FarSubdivisionTables const *subdivisionTables,
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FarVertexEditTables const *vertexEditTables);
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/// Destructor
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virtual ~OsdCudaComputeContext();
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/// Returns one of the vertex refinement tables.
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///
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/// @param tableIndex the type of table
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///
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const OsdCudaTable * GetTable(int tableIndex) const;
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/// Returns the number of hierarchical edit tables
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int GetNumEditTables() const;
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/// Returns a specific hierarchical edit table
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///
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/// @param tableIndex the index of the table
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///
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const OsdCudaHEditTable * GetEditTable(int tableIndex) const;
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protected:
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OsdCudaComputeContext();
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bool initialize(FarSubdivisionTables const *subdivisionTables,
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FarVertexEditTables const *vertexEditTables);
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private:
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std::vector<OsdCudaTable*> _tables;
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std::vector<OsdCudaHEditTable*> _editTables;
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};
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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 // OSD_CUDA_COMPUTE_CONTEXT_H
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