mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
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131 lines
4.6 KiB
C++
131 lines
4.6 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 FAR_MESH_H
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#define FAR_MESH_H
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#include "../version.h"
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#include "../far/subdivisionTables.h"
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#include "../far/patchTables.h"
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#include "../far/vertexEditTables.h"
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#include "../far/kernelBatch.h"
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#include <cassert>
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#include <vector>
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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/// \brief Feature Adaptive Mesh class.
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///
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/// FarMesh is a serialized instantiation of an HbrMesh. The HbrMesh contains
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/// all the topological data in a highly interconnected data structure for
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/// ease of access and modification. When instantiating a FarMesh, the factory
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/// analyzes this data structure and serializes the topology into a linear
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/// buffers that are ready for efficient parallel processing.
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///
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template <class U> class FarMesh {
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public:
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typedef U VertexType;
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/// \brief Constructor. FarMesh takes ownership of input tables.
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FarMesh(FarSubdivisionTables *subdivisionTables, FarPatchTables *patchTables,
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FarVertexEditTables *vertexEditTables, FarKernelBatchVector const &batches) :
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_subdivisionTables(subdivisionTables), _patchTables(patchTables),
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_vertexEditTables(vertexEditTables), _batches(batches) { }
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~FarMesh();
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/// \brief Returns the subdivision method
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FarSubdivisionTables const * GetSubdivisionTables() const { return _subdivisionTables; }
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/// \brief Returns patch tables
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FarPatchTables const * GetPatchTables() const { return _patchTables; }
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/// \brief Returns the total number of vertices in the mesh across across all depths
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int GetNumVertices() const { return GetSubdivisionTables()->GetNumVertices(); }
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/// \brief Returns the list of vertices in the mesh (from subdiv level 0 to N)
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std::vector<U> & GetVertices() { return _vertices; }
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/// \brief Returns a reference to the vertex at the given index
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///
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/// @param index the index fo the vertex
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///
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U & GetVertex(int index) { return _vertices[index]; }
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/// \brief Returns vertex edit tables
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FarVertexEditTables const * GetVertexEditTables() const { return _vertexEditTables; }
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/// \brief True if the mesh tables support the feature-adaptive mode.
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bool IsFeatureAdaptive() const { return _patchTables->IsFeatureAdaptive(); }
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/// \brief Returns an ordered vector of batches of compute kernels.
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/// The kernels describe the sequence of computations required to apply the
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/// subdivision scheme to the vertices in the mesh.
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const FarKernelBatchVector & GetKernelBatches() const { return _batches; }
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private:
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// Note : the vertex classes are renamed <X,Y> so as not to shadow the
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// declaration of the templated vertex class U.
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template <class X, class Y> friend class FarMeshFactory;
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FarMesh() : _subdivisionTables(0), _patchTables(0), _vertexEditTables(0) { }
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// non-copyable, so these are not implemented:
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FarMesh(FarMesh<U> const &);
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FarMesh<U> & operator = (FarMesh<U> const &);
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// subdivision method used in this mesh
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FarSubdivisionTables * _subdivisionTables;
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// tables of vertex indices for feature adaptive patches
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FarPatchTables * _patchTables;
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// hierarchical vertex edit tables
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FarVertexEditTables * _vertexEditTables;
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// kernel execution batches
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FarKernelBatchVector _batches;
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// list of vertices (up to N levels of subdivision)
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std::vector<U> _vertices;
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};
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template <class U>
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FarMesh<U>::~FarMesh()
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{
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delete _subdivisionTables;
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delete _patchTables;
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delete _vertexEditTables;
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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 /* FAR_MESH_H */
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