GAS/GAS_ComputeParticleAttributes.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.
 *
 * Produced by:
 *      Jeff Chadwick
 *      Side Effects Software Inc
 *      123 Front Street West, Suite 1401
 *      Toronto, Ontario
 *      Canada   M5J 2M2
 *      416-504-9876
 *
 * NAME:        GAS_ComputeParticleAttributes.h
 *              This DOP is used to recompute desired attributes
 *              on the provided particle fluid field.
 *
 * COMMENTS:
 */

#ifndef __GAS_ComputeParticleAttributes__
#define __GAS_ComputeParticleAttributes__

#include "GAS_API.h"

#include <GU/GU_Detail.h>

#include <UT/UT_ThreadedAlgorithm.h>

#include "GAS_SubSolver.h"
#include "GAS_Utils.h"

class GAS_SPH;

class GAS_API GAS_ComputeParticleAttributes : public GAS_SubSolver
{
public:
    GET_DATA_FUNC_S(GAS_NAME_GEOMETRY, GeometryName);
    GET_DATA_FUNC_B("dodensitygrad", DoDensityGrad);
    GET_DATA_FUNC_B("doneighbourvel", DoNeighbourVel);

protected:
    explicit             GAS_ComputeParticleAttributes(
                                    const SIM_DataFactory *factory);
    virtual             ~GAS_ComputeParticleAttributes();

    /// Recomputes the values of specified attributes
    virtual bool         solveGasSubclass(SIM_Engine &engine,
                                    SIM_Object *obj,
                                    SIM_Time time,
                                    SIM_Time timestep);

    bool                 shouldMultiThread() { return true; }

protected:
    // A structure used to list which attributes we want
    // to store.
    struct Attribs {
        bool             myStoreDensityGradient;
        bool             myStoreNeighbourVelocity;
    };

    /// Multithreaded attribute calculation method
    THREADED_METHOD2(GAS_ComputeParticleAttributes, shouldMultiThread(),
                                    computeAttributes,
                                    GU_Detail *, gdp,
                                    const Attribs &, attribs)
    void                 computeAttributesPartial(GU_Detail *gdp,
                                    const Attribs &attribs,
                                    const UT_JobInfo &info);

private:
    static const SIM_DopDescription     *getDopDescription();

    DECLARE_STANDARD_GETCASTTOTYPE();
    DECLARE_DATAFACTORY(GAS_ComputeParticleAttributes,
                        GAS_SubSolver,
                        "Gas Compute Particle Attributes",
                        getDopDescription());
};

#endif

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