/usr/include/dcmtk/dcmimage/dipalpxt.h is in libdcmtk-dev 3.6.2-3build3.
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*
* Copyright (C) 1996-2016, 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: dcmimage
*
* Author: Joerg Riesmeier
*
* Purpose: DicomPalettePixelTemplate (Header)
*
*/
#ifndef DIPALPXT_H
#define DIPALPXT_H
#include "dcmtk/config/osconfig.h"
#include "dcmtk/dcmimage/dicopxt.h"
#include "dcmtk/dcmimgle/diluptab.h"
#include "dcmtk/dcmimgle/diinpx.h" /* gcc 3.4 needs this */
/*---------------------*
* class declaration *
*---------------------*/
/** Template class to handle Palette color pixel data
*/
template<class T1, class T2, class T3>
class DiPalettePixelTemplate
: public DiColorPixelTemplate<T3>
{
public:
/** constructor
*
** @param docu pointer to DICOM document
* @param pixel pointer to input pixel representation
* @param palette pointer to RGB color palette
* @param status reference to status variable
*/
DiPalettePixelTemplate(const DiDocument *docu,
const DiInputPixel *pixel,
DiLookupTable *palette[3],
EI_Status &status)
: DiColorPixelTemplate<T3>(docu, pixel, 1, status)
{
if ((pixel != NULL) && (this->Count > 0) && (status == EIS_Normal))
{
if (this->PlanarConfiguration)
{
status = EIS_InvalidValue;
DCMIMAGE_ERROR("invalid value for 'PlanarConfiguration' (" << this->PlanarConfiguration << ")");
}
else
convert(OFstatic_cast(const T1 *, pixel->getData()) + pixel->getPixelStart(), palette);
}
}
/** destructor
*/
virtual ~DiPalettePixelTemplate()
{
}
private:
/** convert input pixel data to intermediate representation
*
** @param pixel pointer to input pixel data
* @param palette pointer to RGB color palette
*/
void convert(const T1 *pixel,
DiLookupTable *palette[3])
{ // can be optimized if necessary !
if (this->Init(pixel))
{
const T1 *p = pixel;
T2 value = 0;
unsigned long i;
int j;
// use the number of input pixels derived from the length of the 'PixelData'
// attribute), but not more than the size of the intermediate buffer
const unsigned long count = (this->InputCount < this->Count) ? this->InputCount : this->Count;
for (i = 0; i < count; ++i)
{
value = OFstatic_cast(T2, *(p++));
for (j = 0; j < 3; ++j)
{
if (value <= palette[j]->getFirstEntry(value))
this->Data[j][i] = OFstatic_cast(T3, palette[j]->getFirstValue());
else if (value >= palette[j]->getLastEntry(value))
this->Data[j][i] = OFstatic_cast(T3, palette[j]->getLastValue());
else
this->Data[j][i] = OFstatic_cast(T3, palette[j]->getValue(value));
}
}
}
}
};
#endif
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