OpenSubdiv/opensubdiv/far/endCapLegacyGregoryPatchFactory.h

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

#include "../far/patchTablesFactory.h"

namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {

class PatchTables;
class TopologyRefiner;

namespace Far {

/// \brief    This factory generates legacy (OpenSubdiv 2.x) gregory patches.
///
class EndCapLegacyGregoryPatchFactory {
public:
    EndCapLegacyGregoryPatchFactory(TopologyRefiner const & refiner);

    PatchDescriptor::Type GetPatchType(PatchTablesFactoryBase::PatchFaceTag const &tag) const;

    ConstIndexArray GetTopology(Vtr::Level const& level, Index faceIndex,
                                PatchTablesFactoryBase::PatchFaceTag const * levelPatchTags,
                                int levelVertOffset);

    void AddGregoryPatchTables(PatchTables *patchTables);

private:
    TopologyRefiner const &_refiner;
    std::vector<Index> _gregoryTopology;
    std::vector<Index> _gregoryBoundaryTopology;
    std::vector<Index> _gregoryFaceIndices;
    std::vector<Index> _gregoryBoundaryFaceIndices;
};

} // end namespace Far

} // end namespace OPENSUBDIV_VERSION
} // end namespace OpenSubdiv

#endif  // FAR_END_CAP_LEGACY_GREGORY_PATCH_FACTORY_H