IPoints.h

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//-*****************************************************************************
//
// Copyright (c) 2009-2012,
//  Sony Pictures Imageworks Inc. and
//  Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
// *       Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// *       Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// *       Neither the name of Sony Pictures Imageworks, nor
// Industrial Light & Magic, nor the names of their contributors may be used
// to endorse or promote products derived from this software without specific
// prior written permission.
//
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//-*****************************************************************************
 
#ifndef Alembic_AbcGeom_IPoints_h
#define Alembic_AbcGeom_IPoints_h
 
#include <Alembic/Util/Export.h>
#include <Alembic/AbcGeom/Foundation.h>
#include <Alembic/AbcGeom/SchemaInfoDeclarations.h>
#include <Alembic/AbcGeom/IGeomParam.h>
#include <Alembic/AbcGeom/IGeomBase.h>
 
namespace Alembic {
namespace AbcGeom {
namespace ALEMBIC_VERSION_NS {
 
//-*****************************************************************************
class ALEMBIC_EXPORT IPointsSchema : public IGeomBaseSchema<PointsSchemaInfo>
{
public:
    class Sample
    {
    public:
        typedef Sample this_type;
 
        // Users don't ever create this data directly.
        Sample() { reset(); }
 
        Abc::P3fArraySamplePtr getPositions() const { return m_positions; }
        Abc::UInt64ArraySamplePtr getIds() const { return m_ids; }
        Abc::V3fArraySamplePtr getVelocities() const { return m_velocities; }
 
        Abc::Box3d getSelfBounds() const { return m_selfBounds; }
 
        bool valid() const
        {
            return m_positions && m_ids;
        }
 
        void reset()
        {
            m_positions.reset();
            m_velocities.reset();
            m_ids.reset();
            m_selfBounds.makeEmpty();
        }
 
        ALEMBIC_OPERATOR_BOOL( valid() );
 
    protected:
        friend class IPointsSchema;
        Abc::P3fArraySamplePtr m_positions;
        Abc::UInt64ArraySamplePtr m_ids;
        Abc::V3fArraySamplePtr m_velocities;
 
        Abc::Box3d m_selfBounds;
    };
 
    //-*************************************************************************
    // POINTS SCHEMA
    //-*************************************************************************
public:
    typedef IPointsSchema this_type;
 
    //-*************************************************************************
    // CONSTRUCTION, DESTRUCTION, ASSIGNMENT
    //-*************************************************************************

    IPointsSchema() {}

    IPointsSchema( const ICompoundProperty &iParent,
                   const std::string &iName,
 
                   const Abc::Argument &iArg0 = Abc::Argument(),
                   const Abc::Argument &iArg1 = Abc::Argument() )
      : IGeomBaseSchema<PointsSchemaInfo>( iParent, iName, iArg0, iArg1 )
    {
        init( iArg0, iArg1 );
    }

    IPointsSchema( const ICompoundProperty iProp,
                   const Abc::Argument &iArg0 = Abc::Argument(),
                   const Abc::Argument &iArg1 = Abc::Argument() )
      : IGeomBaseSchema<PointsSchemaInfo>( iProp, iArg0, iArg1 )
    {
        init( iArg0, iArg1 );
    }

    IPointsSchema(const IPointsSchema& iCopy)
        : IGeomBaseSchema<PointsSchemaInfo>()
    {
        *this = iCopy;
    }

 
    //-*************************************************************************
    // SCALAR PROPERTY READER FUNCTIONALITY
    //-*************************************************************************

    size_t getNumSamples() const
    { return std::max( m_positionsProperty.getNumSamples(),
                       m_idsProperty.getNumSamples() ); }

    bool isConstant() const { return m_positionsProperty.isConstant() && m_idsProperty.isConstant(); }

    AbcA::TimeSamplingPtr getTimeSampling() const
    {
        if ( m_positionsProperty.valid() )
        {
            return m_positionsProperty.getTimeSampling();
        }
        return getObject().getArchive().getTimeSampling(0);
    }
 
    //-*************************************************************************
    void get( Sample &oSample,
              const Abc::ISampleSelector &iSS = Abc::ISampleSelector() ) const
    {
        ALEMBIC_ABC_SAFE_CALL_BEGIN( "IPointsSchema::get()" );
 
        m_positionsProperty.get( oSample.m_positions, iSS );
        m_idsProperty.get( oSample.m_ids, iSS );
 
        m_selfBoundsProperty.get( oSample.m_selfBounds, iSS );
 
        if ( m_velocitiesProperty && m_velocitiesProperty.getNumSamples() > 0 )
        { m_velocitiesProperty.get( oSample.m_velocities, iSS ); }
 
        // Could error check here.
 
        ALEMBIC_ABC_SAFE_CALL_END();
    }
 
    Sample getValue( const Abc::ISampleSelector &iSS = Abc::ISampleSelector() ) const
    {
        Sample smp;
        get( smp, iSS );
        return smp;
    }
 
    Abc::IP3fArrayProperty getPositionsProperty() const
    {
        return m_positionsProperty;
    }
 
    Abc::IV3fArrayProperty getVelocitiesProperty() const
    {
        return m_velocitiesProperty;
    }
 
    Abc::IUInt64ArrayProperty getIdsProperty() const
    {
        return m_idsProperty;
    }
 
    IFloatGeomParam getWidthsParam() const
    {
        return m_widthsParam;
    }
 
    //-*************************************************************************
    // ABC BASE MECHANISMS
    // These functions are used by Abc to deal with errors, rewrapping,
    // and so on.
    //-*************************************************************************

    void reset()
    {
        m_positionsProperty.reset();
        m_velocitiesProperty.reset();
        m_idsProperty.reset();
        m_widthsParam.reset();
 
        IGeomBaseSchema<PointsSchemaInfo>::reset();
    }

    bool valid() const
    {
        return ( IGeomBaseSchema<PointsSchemaInfo>::valid() &&
                 m_positionsProperty.valid() &&
                 m_idsProperty.valid() );
    }

    ALEMBIC_OVERRIDE_OPERATOR_BOOL( IPointsSchema::valid() );
 
protected:
    void init( const Abc::Argument &iArg0,
               const Abc::Argument &iArg1 );
 
    Abc::IP3fArrayProperty m_positionsProperty;
    Abc::IUInt64ArrayProperty m_idsProperty;
    Abc::IV3fArrayProperty m_velocitiesProperty;
    IFloatGeomParam m_widthsParam;
};
 
//-*****************************************************************************
typedef Abc::ISchemaObject<IPointsSchema> IPoints;
 
typedef Util::shared_ptr< IPoints > IPointsPtr;
 
} // End namespace ALEMBIC_VERSION_NS
 
using namespace ALEMBIC_VERSION_NS;
 
} // End namespace AbcGeom
} // End namespace Alembic
 
#endif