OpenSubdiv/python/osd/topology.h

//
//   Copyright 2013 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
//
//   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
//   language governing permissions and limitations under the Apache License.
//

#pragma once
#include "buffer.h"

struct TopologyImpl;

namespace shim {

    struct BoundaryMode {
        enum e {
            NONE,
            EDGE_ONLY,
            EDGE_AND_CORNER,
            ALWAYS_SHARP,
        };
    };

    class Subdivider;

    class Topology {
    public:
        Topology(const shim::HomogeneousBuffer& indices,
                 const shim::HomogeneousBuffer& valences);
        ~Topology();

        void copyAnnotationsFrom(const Topology& topo);
 
        void finalize();
        
        BoundaryMode::e getBoundaryMode() const;
        void setBoundaryMode(BoundaryMode::e bm);

        int getNumVertices() const;
        float getVertexSharpness(int vertex) const;
        void setVertexSharpness(int vertex, float sharpness);
        
        int getNumFaces() const;
        bool getFaceHole(int face) const;
        void setFaceHole(int face, bool isHole);

        int getNumEdges(int face) const;
        float getEdgeSharpness(int face, int edge) const;
        void setEdgeSharpness(int face, int edge, float sharpness);

    private:
        TopologyImpl *self;
        friend class shim::Subdivider;
    };

}