ArImpl.h

//-*****************************************************************************
//
// Copyright (c) 2013,
//  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
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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//-*****************************************************************************
 
#ifndef Alembic_AbcCoreOgawa_ArImpl_h
#define Alembic_AbcCoreOgawa_ArImpl_h
 
#include <Alembic/AbcCoreOgawa/Foundation.h>
#include <Alembic/AbcCoreOgawa/StreamManager.h>
 
namespace Alembic {
namespace AbcCoreOgawa {
namespace ALEMBIC_VERSION_NS {
 
//-*****************************************************************************
class OrData;
 
//-*****************************************************************************
class ArImpl
    : public AbcA::ArchiveReader
    , public Alembic::Util::enable_shared_from_this<ArImpl>
{
private:
    friend class ReadArchive;
 
    ArImpl( const std::string &iFileName,
            size_t iNumStreams=1,
            bool iUseMMap=true);
 
    ArImpl( const std::vector< std::istream * > & iStreams );
 
public:
 
    virtual ~ArImpl();
 
    //-*************************************************************************
    // ABSTRACT FUNCTIONS
    //-*************************************************************************
    virtual const std::string &getName() const;
 
    virtual const AbcA::MetaData &getMetaData() const;
 
    virtual AbcA::ObjectReaderPtr getTop();
 
    virtual AbcA::TimeSamplingPtr getTimeSampling( Util::uint32_t iIndex );
 
    virtual AbcA::ArchiveReaderPtr asArchivePtr();
 
    virtual AbcA::ReadArraySampleCachePtr getReadArraySampleCachePtr()
    {
        return AbcA::ReadArraySampleCachePtr();
    }
 
    virtual void
    setReadArraySampleCachePtr( AbcA::ReadArraySampleCachePtr iPtr )
    {
    }
 
    virtual AbcA::index_t getMaxNumSamplesForTimeSamplingIndex(
        Util::uint32_t iIndex );
 
    virtual Util::uint32_t getNumTimeSamplings()
    {
        return m_timeSamples.size();
    }
 
    virtual Util::int32_t getArchiveVersion()
    {
        return m_archiveVersion;
    }
 
    StreamIDPtr getStreamID();
 
    const std::vector< AbcA::MetaData > & getIndexedMetaData();
 
private:
    void init();
 
    std::string m_fileName;
    size_t m_numStreams;
 
    Ogawa::IArchive m_archive;
 
    Alembic::Util::weak_ptr< AbcA::ObjectReader > m_top;
    Alembic::Util::shared_ptr < OrData > m_data;
    Alembic::Util::mutex m_orlock;
 
    Util::int32_t m_archiveVersion;
 
    std::vector <  AbcA::TimeSamplingPtr > m_timeSamples;
    std::vector <  AbcA::index_t > m_maxSamples;
 
    ObjectHeaderPtr m_header;
 
    StreamManager m_manager;
 
    std::vector< AbcA::MetaData > m_indexMetaData;
};
 
} // End namespace ALEMBIC_VERSION_NS
 
using namespace ALEMBIC_VERSION_NS;
 
} // End namespace AbcCoreOgawa
} // End namespace Alembic
 
#endif