NvBlastSupportGraph.h

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#ifndef NVBLASTSUPPORTGRAPH_H
#define NVBLASTSUPPORTGRAPH_H


#include "NvBlastIndexFns.h"
#include "NvBlastMemory.h"

namespace Nv
{
namespace Blast
{

struct SupportGraph
{
    uint32_t    m_nodeCount;

    NvBlastBlockArrayData(uint32_t, m_chunkIndicesOffset, getChunkIndices, m_nodeCount);

    NvBlastBlockArrayData(uint32_t, m_adjacencyPartitionOffset, getAdjacencyPartition, m_nodeCount + 1);

    NvBlastBlockArrayData(uint32_t, m_adjacentNodeIndicesOffset, getAdjacentNodeIndices, getAdjacencyPartition()[m_nodeCount]);

    NvBlastBlockArrayData(uint32_t, m_adjacentBondIndicesOffset, getAdjacentBondIndices, getAdjacencyPartition()[m_nodeCount]);

    uint32_t    findBond(uint32_t nodeIndex0, uint32_t nodeIndex1) const;
};



NV_INLINE uint32_t SupportGraph::findBond(uint32_t nodeIndex0, uint32_t nodeIndex1) const
{
    const uint32_t* adjacencyPartition = getAdjacencyPartition();
    const uint32_t* adjacentNodeIndices = getAdjacentNodeIndices();
    const uint32_t* adjacentBondIndices = getAdjacentBondIndices();

    // Iterate through all neighbors of nodeIndex0 chunk
    for (uint32_t i = adjacencyPartition[nodeIndex0]; i < adjacencyPartition[nodeIndex0 + 1]; i++)
    {
        if (adjacentNodeIndices[i] == nodeIndex1)
        {
            return adjacentBondIndices[i];
        }
    }

    return invalidIndex<uint32_t>();
}

} // namespace Blast
} // namespace Nv


#endif // ifndef NVBLASTSUPPORTGRAPH_H