topologyDescriptor.h

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//
//   Copyright 2014 DreamWorks Animation LLC.
//
//   Licensed under the terms set forth in the LICENSE.txt file available at
//   https://opensubdiv.org/license.
//
#ifndef OPENSUBDIV3_FAR_TOPOLOGY_DESCRIPTOR_H
#define OPENSUBDIV3_FAR_TOPOLOGY_DESCRIPTOR_H
 
#include "../version.h"
 
#include "../far/topologyRefiner.h"
#include "../far/topologyRefinerFactory.h"
#include "../far/error.h"
 
#include <cassert>
 
namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {
 
namespace Far {

struct TopologyDescriptor {
 
    int           numVertices,
                  numFaces;
 
    int const   * numVertsPerFace;
    Index const * vertIndicesPerFace;
 
    int           numCreases;
    Index const * creaseVertexIndexPairs;
    float const * creaseWeights;
 
    int           numCorners;
    Index const * cornerVertexIndices;
    float const * cornerWeights;
        
    int           numHoles;
    Index const * holeIndices;
 
    bool          isLeftHanded;
 
    //  Face-varying data channel -- value indices correspond to vertex indices,
    //  i.e. one for every vertex of every face:
    //
    struct FVarChannel {
 
        int           numValues;
        Index const * valueIndices;
 
        FVarChannel() : numValues(0), valueIndices(0) { }
    };
        
    int                 numFVarChannels;
    FVarChannel const * fvarChannels;
 
    TopologyDescriptor();
};
 
 
//
//  Forward declarations of required TopologyRefinerFactory<TopologyDescriptor>
//  specializations (defined internally):
//
// @cond EXCLUDE_DOXYGEN
 
template <>
bool
TopologyRefinerFactory<TopologyDescriptor>::resizeComponentTopology(
    TopologyRefiner & refiner, TopologyDescriptor const & desc);
 
template <>
bool
TopologyRefinerFactory<TopologyDescriptor>::assignComponentTopology(
    TopologyRefiner & refiner, TopologyDescriptor const & desc);
 
template <>
bool
TopologyRefinerFactory<TopologyDescriptor>::assignComponentTags(
    TopologyRefiner & refiner, TopologyDescriptor const & desc);
 
template <>
bool
TopologyRefinerFactory<TopologyDescriptor>::assignFaceVaryingTopology(
    TopologyRefiner & refiner, TopologyDescriptor const & desc);
 
template <>
void
TopologyRefinerFactory<TopologyDescriptor>::reportInvalidTopology(
    TopologyError errCode, char const * msg, TopologyDescriptor const & desc);
 
// @endcond
 
} // end namespace Far
 
} // end namespace OPENSUBDIV_VERSION
using namespace OPENSUBDIV_VERSION;
} // end namespace OpenSubdiv
 
#endif /* OPENSUBDIV3_FAR_TOPOLOGY_DESCRIPTOR_H */