QuadSetToTriangleSet.cu

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#include "QuadSetToTriangleSet.h"
 
namespace dyno
{
    IMPLEMENT_TCLASS(QuadSetToTriangleSet, TDataType)
 
    template<typename TDataType>
    QuadSetToTriangleSet<TDataType>::QuadSetToTriangleSet()
        : TopologyMapping()
    {
    }
 
    template<typename Triangle, typename Quad>
    __global__ void Q2T_SetupTriangles(
        DArray<Triangle> triangles,
        DArray<Quad> quads)
    {
        int tId = threadIdx.x + (blockIdx.x * blockDim.x);
        if (tId >= quads.size()) return;
 
        Quad quad = quads[tId];
        triangles[2 * tId] = Triangle(quad[0], quad[1], quad[2]);
        triangles[2 * tId + 1] = Triangle(quad[0], quad[2], quad[3]);
    }
 
    template<typename TDataType>
    bool QuadSetToTriangleSet<TDataType>::apply()
    {
        if (this->outTriangleSet()->isEmpty()) {
            this->outTriangleSet()->allocate();
        }
 
        auto qs = this->inQuadSet()->constDataPtr();
        auto ts = this->outTriangleSet()->getDataPtr();
 
        auto& verts = qs->getPoints();
        auto& quads = qs->getQuads();
 
        auto& tris = ts->getTriangles();
        tris.resize(2 * quads.size());
 
        ts->setPoints(verts);
 
        cuExecute(quads.size(),
            Q2T_SetupTriangles,
            tris,
            quads);
 
        this->outTriangleSet()->update();
 
        return true;
    }
 
    DEFINE_CLASS(QuadSetToTriangleSet);
}