/*

 *

 *  Copyright (C) 1996-2010, OFFIS e.V.

 *  All rights reserved.  See COPYRIGHT file for details.

 *

 *  This software and supporting documentation were developed by

 *

 *    OFFIS e.V.

 *    R&D Division Health

 *    Escherweg 2

 *    D-26121 Oldenburg, Germany

 *

 *

 *  Module:  dcmimgle

 *

 *  Author:  Joerg Riesmeier

 *

 *  Purpose: DicomMonoOutputPixel (Source)

 *

 */

#include "dcmtk/config/osconfig.h"

#include "dcmtk/dcmimgle/dimoopx.h"

#include "dcmtk/dcmimgle/dimopx.h"

/*----------------*

 *  constructors  *

 *----------------*/

DiMonoOutputPixel::DiMonoOutputPixel(const DiMonoPixel *pixel,

                                     const unsigned long size,

                                     const unsigned long frame,

                                     const unsigned long max)

  : Count(0),

    FrameSize(size),

    UsedValues(NULL),

    MaxValue(max)

{

    if (pixel != NULL)

    {

        if (pixel->getCount() > frame * size)

            Count = pixel->getCount() - frame * size;       // number of pixels remaining for this 'frame'

    }

    if (Count > FrameSize)

        Count = FrameSize;                                  // cut off at frame 'size'

}

/*--------------*

 *  destructor  *

 *--------------*/

DiMonoOutputPixel::~DiMonoOutputPixel()

{

    delete[] UsedValues;

}

/**********************************/

int DiMonoOutputPixel::isUnused(const unsigned long value)

{

    if (UsedValues == NULL)

        determineUsedValues();                  // create on demand

    if (UsedValues != NULL)

    {

        if (value <= MaxValue)

            return OFstatic_cast(int, UsedValues[value] == 0);

        return 2;                               // out of range

    }

    return 0;

}