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https://github.com/PixarAnimationStudios/OpenSubdiv
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392e5e8bed
While this may be worth revisiting, we should first quantify the benefits and identify the compilers that support it. Ultimately, we may never use pragma once in favor of strictly using standard C++.
107 lines
3.0 KiB
C++
107 lines
3.0 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_FAR_PTEX_INDICES_H
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#define OPENSUBDIV3_FAR_PTEX_INDICES_H
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#include "../version.h"
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#include "../far/topologyRefiner.h"
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#include "../far/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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///
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/// \brief Object used to compute and query ptex face indices.
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///
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/// Given a refiner, constructing a PtexIndices object builds the mapping
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/// from coarse faces to ptex ids. Once built, the object can be used to
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/// query the mapping.
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///
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class PtexIndices {
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public:
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/// \brief Constructor
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PtexIndices(TopologyRefiner const &refiner);
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/// \brief Destructor
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~PtexIndices();
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//@{
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///
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/// Ptex
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///
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/// \brief Returns the number of ptex faces in the mesh
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///
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int GetNumFaces() const;
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/// \brief Returns the ptex face index given a coarse face 'f' or -1
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///
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int GetFaceId(Index f) const;
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/// \brief Returns ptex face adjacency information for a given coarse face
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///
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/// @param refiner refiner used to build this PtexIndices object.
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///
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/// @param face coarse face index
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///
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/// @param quadrant quadrant index if 'face' is not a quad (the local ptex
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/// sub-face index). Must be less than the number of face
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/// vertices.
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///
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/// @param adjFaces ptex face indices of adjacent faces
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///
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/// @param adjEdges ptex edge indices of adjacent faces
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///
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void GetAdjacency(
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TopologyRefiner const &refiner,
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int face, int quadrant,
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int adjFaces[4], int adjEdges[4]) const;
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//@}
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private:
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void initializePtexIndices(TopologyRefiner const &refiner);
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private:
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std::vector<Index> _ptexIndices;
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};
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} // end namespace Far
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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_FAR_PTEX_INDICES_H */
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