ImageRGBLookupLazyStream.hpp

/* ***** BEGIN LICENSE BLOCK *****
 * FW4SPL - Copyright (C) IRCAD, 2009-2018.
 * Distributed under the terms of the GNU Lesser General Public License (LGPL) as
 * published by the Free Software Foundation.
 * ****** END LICENSE BLOCK ****** */

#pragma once

#include "fwDcmtkIO/config.hpp"

#include <fwCore/base.hpp>

#include <fwMedData/DicomSeries.hpp>

#include <fwMemory/stream/in/IFactory.hpp>

#include <fwTools/Type.hpp>

#include <boost/iostreams/stream.hpp>

#include <vector>

namespace fwDcmtkIO
{
namespace reader
{
namespace rgblookup
{

//------------------------------------------------------------------------------

class FWDCMTKIO_CLASS_API ImageRGBLookupLazyInformation
{
public:
    typedef SPTR ( ImageRGBLookupLazyInformation ) sptr;

    ::fwMedData::DicomSeries::csptr m_dicomSeries;

    unsigned int m_rows;

    unsigned int m_columns;

    unsigned int m_depth;

    unsigned short m_bitsAllocated;

    unsigned short m_pixelValueBitsAllocated;

    ::fwTools::Type m_imageType;

};

//------------------------------------------------------------------------------

class FWDCMTKIO_CLASS_API ImageRGBLookupLazySource
{
public:
    typedef char char_type;
    typedef ::boost::iostreams::source_tag category;

    ImageRGBLookupLazySource( ImageRGBLookupLazyInformation::sptr dcmInfo );

    std::streamsize read(char* stream, std::streamsize size);

private:
    ImageRGBLookupLazyInformation::sptr m_dcmInfo;

    size_t m_frameSize;

    int m_currentFrame;

    size_t m_currentPosition;

    char* m_frame;

    ::fwMedData::DicomSeries::DicomContainerType::const_iterator m_currentDicom;

    void* m_redLookup;

    void* m_greenLookup;

    void* m_blueLookup;

};

//------------------------------------------------------------------------------

class FWDCMTKIO_CLASS_API ImageRGBLookupLazyStream : public ::fwMemory::stream::in::IFactory
{

public:

    ImageRGBLookupLazyStream( ImageRGBLookupLazyInformation::sptr dcmInfo );

protected:

    SPTR(std::istream) get();

    ImageRGBLookupLazyInformation::sptr m_dcmInfo;
};

//------------------------------------------------------------------------------

} //rgblookup
} //reader
} //fwDcmtkIO