GAS_ParticleCount.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * NAME:    GAS_ParticleCount.h ( GAS Library, C++)
 *
 * COMMENTS:
 */

#ifndef __GAS_ParticleCount__
#define __GAS_ParticleCount__

#include "GAS_API.h"

#include "GAS_SubSolver.h"
#include "GAS_Utils.h"
#include <UT/UT_ThreadedAlgorithm.h>

#include <openvdb/tools/PointIndexGrid.h>

class SIM_RawField;

class GAS_API GAS_ParticleCount : public GAS_SubSolver
{
public:
    GET_DATA_FUNC_S(GAS_NAME_FIELDDEST, FieldDestName);
    GET_DATA_FUNC_S(GAS_NAME_GEOMETRY, GeometryName);

protected:
    explicit            GAS_ParticleCount(const SIM_DataFactory *factory);
                        ~GAS_ParticleCount() override;

    /// Constructs a signed distance field by skinning the set
    /// of particles.
    bool                solveGasSubclass(SIM_Engine &engine,
                                        SIM_Object *obj,
                                        SIM_Time time,
                                        SIM_Time timestep) override;

    void                countParticles(const GU_Detail *gdp,
                                        SIM_RawField *dst);

                        THREADED_METHOD2(GAS_ParticleCount,
                                dst->shouldMultiThread(),
                                countParticles,
                                SIM_RawField *, dst,
                                const openvdb::tools::PointIndexGrid *, grid)
    void                countParticlesPartial(
                                SIM_RawField *dst,
                                const openvdb::tools::PointIndexGrid *ptgrid,
                                const UT_JobInfo &info);

private:
    static const SIM_DopDescription *getDopDescription();

    DECLARE_STANDARD_GETCASTTOTYPE();
    DECLARE_DATAFACTORY(GAS_ParticleCount,
                        GAS_SubSolver,
                        "Gas Particle Count",
                        getDopDescription());
};


#endif