mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
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168 lines
6.4 KiB
C++
168 lines
6.4 KiB
C++
//
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// Copyright (C) Pixar. All rights reserved.
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//
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// This license governs use of the accompanying software. If you
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// use the software, you accept this license. If you do not accept
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// the license, do not use the software.
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//
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// 1. Definitions
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// The terms "reproduce," "reproduction," "derivative works," and
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// "distribution" have the same meaning here as under U.S.
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// copyright law. A "contribution" is the original software, or
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// any additions or changes to the software.
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// A "contributor" is any person or entity that distributes its
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// contribution under this license.
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// "Licensed patents" are a contributor's patent claims that read
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// directly on its contribution.
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//
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// 2. Grant of Rights
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// (A) Copyright Grant- Subject to the terms of this license,
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// including the license conditions and limitations in section 3,
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// each contributor grants you a non-exclusive, worldwide,
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// royalty-free copyright license to reproduce its contribution,
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// prepare derivative works of its contribution, and distribute
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// its contribution or any derivative works that you create.
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// (B) Patent Grant- Subject to the terms of this license,
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// including the license conditions and limitations in section 3,
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// each contributor grants you a non-exclusive, worldwide,
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// royalty-free license under its licensed patents to make, have
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// made, use, sell, offer for sale, import, and/or otherwise
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// dispose of its contribution in the software or derivative works
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// of the contribution in the software.
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//
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// 3. Conditions and Limitations
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// (A) No Trademark License- This license does not grant you
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// rights to use any contributor's name, logo, or trademarks.
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// (B) If you bring a patent claim against any contributor over
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// patents that you claim are infringed by the software, your
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// patent license from such contributor to the software ends
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// automatically.
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// (C) If you distribute any portion of the software, you must
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// retain all copyright, patent, trademark, and attribution
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// notices that are present in the software.
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// (D) If you distribute any portion of the software in source
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// code form, you may do so only under this license by including a
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// complete copy of this license with your distribution. If you
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// distribute any portion of the software in compiled or object
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// code form, you may only do so under a license that complies
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// with this license.
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// (E) The software is licensed "as-is." You bear the risk of
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// using it. The contributors give no express warranties,
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// guarantees or conditions. You may have additional consumer
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// rights under your local laws which this license cannot change.
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// To the extent permitted under your local laws, the contributors
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// exclude the implied warranties of merchantability, fitness for
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// a particular purpose and non-infringement.
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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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~FarMesh();
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/// Returns the subdivision method
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FarSubdivisionTables<U> const * GetSubdivisionTables() const { return _subdivisionTables; }
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/// Returns patch tables
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FarPatchTables const * GetPatchTables() const { return _patchTables; }
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/// 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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/// 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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/// 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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/// Returns the width of the interleaved face-varying data
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int GetTotalFVarWidth() const { return _totalFVarWidth; }
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/// Returns vertex edit tables
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FarVertexEditTables<U> const * GetVertexEdit() const { return _vertexEditTables; }
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/// Returns the total number of vertices in the mesh across across all depths
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int GetNumPtexFaces() const { return _numPtexFaces; }
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/// True if the mesh tables support the feature-adaptive mode.
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bool IsFeatureAdaptive() const { return _patchTables->IsFeatureAdaptive(); }
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/// Returns an ordered vector of batches of compute kernels. The kernels
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/// describe the sequence of computations required to apply the subdivision
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/// 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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template <class X, class Y> friend class FarMultiMeshFactory;
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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<U> * _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<U> * _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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int _totalFVarWidth; // width of the face-varying data
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int _numPtexFaces;
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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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