OCamera.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.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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//
//-*****************************************************************************

#ifndef Alembic_AbcGeom_OCamera_h
#define Alembic_AbcGeom_OCamera_h

#include <Alembic/Util/Export.h>
#include <Alembic/AbcGeom/Foundation.h>
#include <Alembic/AbcGeom/SchemaInfoDeclarations.h>
#include <Alembic/AbcGeom/CameraSample.h>

namespace Alembic {
namespace AbcGeom {
namespace ALEMBIC_VERSION_NS {

//-*****************************************************************************
class ALEMBIC_EXPORT OCameraSchema : public Abc::OSchema<CameraSchemaInfo>
{
    //-*************************************************************************
    // CAMERA SCHEMA
    //-*************************************************************************
public:
    //! By convention we always define this_type in AbcGeom classes.
    //! Used by unspecified-bool-type conversion below
    typedef OCameraSchema this_type;

    //-*************************************************************************
    // CONSTRUCTION, DESTRUCTION, ASSIGNMENT
    //-*************************************************************************

    //! The default constructor creates an empty OCameraMeshSchema
    //! ...
    OCameraSchema() {}

    //! This constructor creates a new camera writer.
    //! The first argument is the compound property to use as a parent
    //! The remaining optional arguments are the parents ErrorHandlerPolicy,
    //! an override to the ErrorHandlerPolicy, MetaData, and TimeSampling info.
    OCameraSchema( AbcA::CompoundPropertyWriterPtr iParent,
                   const std::string &iName,

                   const Abc::Argument &iArg0 = Abc::Argument(),
                   const Abc::Argument &iArg1 = Abc::Argument(),
                   const Abc::Argument &iArg2 = Abc::Argument(),
                   const Abc::Argument &iArg3 = Abc::Argument() )
      : Abc::OSchema<CameraSchemaInfo>( iParent, iName,
                                        iArg0, iArg1, iArg2, iArg3 )
    {

        AbcA::TimeSamplingPtr tsPtr =
            Abc::GetTimeSampling( iArg0, iArg1, iArg2, iArg3 );
        uint32_t tsIndex =
            Abc::GetTimeSamplingIndex( iArg0, iArg1, iArg2, iArg3 );

        // if we specified a valid TimeSamplingPtr, use it to determine the
        // index otherwise we'll use the index, which defaults to the intrinsic
        // 0 index
        if (tsPtr)
        {
            tsIndex = iParent->getObject()->getArchive()->addTimeSampling(
                *tsPtr);
        }

        // Meta data and error handling are eaten up by
        // the super type, so all that's left is time sampling.
        init( tsIndex );
    }

    //! Copy constructor.
    OCameraSchema(const OCameraSchema& iCopy)
        : Abc::OSchema<CameraSchemaInfo>()
    {
        *this = iCopy;
    }

    //! Default assignment operator used.

    //-*************************************************************************
    // SCHEMA STUFF
    //-*************************************************************************

    //! Return the time sampling.
    AbcA::TimeSamplingPtr getTimeSampling() const
    { return m_coreProperties.getTimeSampling(); }

    //-*************************************************************************
    // SAMPLE STUFF
    //-*************************************************************************

    //! Get number of samples written so far.
    //! ...
    size_t getNumSamples()
    { return m_coreProperties.getNumSamples(); }

    //! Set a sample
    void set( const CameraSample &iSamp );

    //! Set from previous sample.
    void setFromPrevious();

    void setTimeSampling( uint32_t iIndex );
    void setTimeSampling( AbcA::TimeSamplingPtr iTime );

    Abc::OCompoundProperty getUserProperties();
    Abc::OCompoundProperty getArbGeomParams();

    Abc::OBox3dProperty getChildBoundsProperty();

    //-*************************************************************************
    // ABC BASE MECHANISMS
    // These functions are used by Abc to deal with errors, validity,
    // and so on.
    //-*************************************************************************

    //! Reset returns this function set to an empty, default
    //! state.
    void reset()
    {
        m_coreProperties.reset();
        m_childBoundsProperty.reset();
        m_userProperties.reset();
        m_arbGeomParams.reset();
        m_bigFilmBackChannelsProperty.reset();
        m_smallFilmBackChannelsProperty.reset();
        Abc::OSchema<CameraSchemaInfo>::reset();
    }

    //! Returns whether this function set is valid.
    bool valid() const
    {
        return ( Abc::OSchema<CameraSchemaInfo>::valid() &&
                 m_coreProperties.valid() );
    }

    //! unspecified-bool-type operator overload.
    //! ...
    ALEMBIC_OVERRIDE_OPERATOR_BOOL( OCameraSchema::valid() );

protected:
    void init( uint32_t iTsIdx );

    Abc::OScalarProperty m_coreProperties;

    Abc::OBox3dProperty m_childBoundsProperty;

    Abc::OCompoundProperty m_userProperties;
    Abc::OCompoundProperty m_arbGeomParams;

    Abc::ODoubleArrayProperty m_bigFilmBackChannelsProperty;

    Abc::OScalarProperty m_smallFilmBackChannelsProperty;

private:
    CameraSample m_initialSample;

};

//-*****************************************************************************
// SCHEMA OBJECT
//-*****************************************************************************
typedef Abc::OSchemaObject<OCameraSchema> OCamera;

typedef Util::shared_ptr< OCamera > OCameraPtr;

} // End namespace ALEMBIC_VERSION_NS

using namespace ALEMBIC_VERSION_NS;

} // End namespace AbcGeom
} // End namespace Alembic

#endif