/usr/include/dcmtk/dcmimage/diargpxt.h is in libdcmtk2-dev 3.6.0-15.
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*
* Copyright (C) 1996-2011, 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: DicomARGBPixelTemplate (Header) - UNTESTED !!!
*
* Last Update: $Author: joergr $
* Update Date: $Date: 2011-11-17 16:13:14 $
* CVS/RCS Revision: $Revision: 1.22 $
* Status: $State: Exp $
*
* CVS/RCS Log at end of file
*
*/
#ifndef DIARGPXT_H
#define DIARGPXT_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 ARGB pixel data
*/
template<class T1, class T2, class T3>
class DiARGBPixelTemplate
: 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
* @param planeSize number of pixels in a plane
* @param bits number of bits per sample
*/
DiARGBPixelTemplate(const DiDocument *docu,
const DiInputPixel *pixel,
DiLookupTable *palette[3],
EI_Status &status,
const unsigned long planeSize,
const int bits)
: DiColorPixelTemplate<T3>(docu, pixel, 4, status)
{
if ((pixel != NULL) && (this->Count > 0) && (status == EIS_Normal))
convert(OFstatic_cast(const T1 *, pixel->getData()) + pixel->getPixelStart(), palette, planeSize, bits);
}
/** destructor
*/
virtual ~DiARGBPixelTemplate()
{
}
private:
/** convert input pixel data to intermediate representation
*
** @param pixel pointer to input pixel data
* @param palette pointer to RGB color palette
* @param planeSize number of pixels in a plane
* @param bits number of bits per sample
*/
void convert(const T1 *pixel,
DiLookupTable *palette[3],
const unsigned long planeSize,
const int bits)
{ // not very much optimized, but no one really uses ARGB !!
if (this->Init(pixel))
{
register T2 value;
const T1 offset = OFstatic_cast(T1, DicomImageClass::maxval(bits - 1));
// 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;
if (this->PlanarConfiguration)
{
/*
register const T1 *a = pixel; // points to alpha plane
const T1 *rgb[3];
rgb[0] = a + this->InputCount; // points to red plane
rgb[1] = rgb[0] + this->InputCount; // points to green plane
rgb[2] = rgb[1] + this->InputCount; // points to blue plane
for (i = 0; i < count; ++i)
{
value = OFstatic_cast(T2, *(a++)); // get alpha value
if (value > 0)
{
for (int j = 0; j < 3; ++j) // set palette color
{
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));
++rgb[j]; // skip RGB values
}
}
else
{
for (j = 0; j < 3; ++j) // copy RGB values
this->Data[j][i] = OFstatic_cast(T3, removeSign(*(rgb[j]++), offset));
}
}
*/
register unsigned long l;
register unsigned long i = 0;
register const T1 *a = pixel; // points to alpha plane
const T1 *rgb[3];
rgb[0] = a + planeSize; // points to red plane
rgb[1] = rgb[0] + planeSize; // points to green plane
rgb[2] = rgb[1] + planeSize; // points to blue plane
while (i < count)
{
/* convert a single frame */
for (l = planeSize; (l != 0) && (i < count); --l, ++i)
{
value = OFstatic_cast(T2, *(a++)); // get alpha value
if (value > 0)
{
for (int j = 0; j < 3; ++j) // set palette color
{
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));
++rgb[j]; // skip RGB values
}
}
else
{
for (int j = 0; j < 3; ++j) // copy RGB values
this->Data[j][i] = OFstatic_cast(T3, removeSign(*(rgb[j]++), offset));
}
}
/* jump to next frame start (skip 2 planes) */
a += 2 * planeSize;
for (int j = 0; j < 3; ++j)
rgb[j] += 2 * planeSize;
}
} else {
register unsigned long i;
register const T1 *p = pixel;
for (i = 0; i < count; ++i)
{
value = OFstatic_cast(T2, *(p++)); // get alpha value
if (value > 0)
{
for (int j = 0; j < 3; ++j) // set palette color
{
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));
}
p += 3; // skip RGB values
}
else
{
for (int j = 0; j < 3; ++j) // copy RGB values
this->Data[j][i] = OFstatic_cast(T3, removeSign(*(p++), offset));
}
}
}
}
}
};
#endif
/*
*
* CVS/RCS Log:
* $Log: diargpxt.h,v $
* Revision 1.22 2011-11-17 16:13:14 joergr
* Minor fixes to keep XCode 4.2 on Mac OS X Lion (clang compiler) quiet.
*
* Revision 1.21 2010-10-14 13:16:29 joergr
* Updated copyright header. Added reference to COPYRIGHT file.
*
* Revision 1.20 2005/12/08 16:01:25 meichel
* Changed include path schema for all DCMTK header files
*
* Revision 1.19 2004/04/21 10:00:31 meichel
* Minor modifications for compilation with gcc 3.4.0
*
* Revision 1.18 2003/12/23 16:06:21 joergr
* Replaced additional post-increment/decrement operators by pre-increment/
* decrement operators.
*
* Revision 1.17 2003/12/23 12:38:51 joergr
* Replaced post-increment/decrement operators by pre-increment/decrement
* operators where appropriate (e.g. 'i++' by '++i').
*
* Revision 1.16 2003/12/23 11:15:07 joergr
* Adapted type casts to new-style typecast operators defined in ofcast.h.
* Removed leading underscore characters from preprocessor symbols (reserved
* symbols). Updated copyright header.
*
* Revision 1.15 2002/06/26 16:16:07 joergr
* Enhanced handling of corrupted pixel data and/or length.
* Corrected decoding of multi-frame, planar images.
*
* Revision 1.14 2001/11/09 16:39:37 joergr
* Removed 'inline' specifier from certain methods.
*
* Revision 1.13 2001/06/01 15:49:27 meichel
* Updated copyright header
*
* Revision 1.12 2000/04/27 13:15:12 joergr
* Dcmimage library code now consistently uses ofConsole for error output.
*
* Revision 1.11 2000/03/08 16:21:48 meichel
* Updated copyright header.
*
* Revision 1.10 1999/04/28 12:51:54 joergr
* Corrected some typos, comments and formatting.
*
* Revision 1.9 1999/02/03 16:47:54 joergr
* Moved global functions maxval() and determineRepresentation() to class
* DicomImageClass (as static methods).
*
* Revision 1.8 1999/01/20 14:36:22 joergr
* Replaced invocation of getCount() by member variable Count where possible.
*
* Revision 1.7 1998/12/14 17:08:43 joergr
* Added support for signed values as second entry in look-up tables
* (= first value mapped).
*
* Revision 1.6 1998/11/27 13:40:11 joergr
* Added copyright message.
*
* Revision 1.5 1998/07/01 08:39:18 joergr
* Minor changes to avoid compiler warnings (gcc 2.8.1 with additional
* options), e.g. add copy constructors.
*
* Revision 1.4 1998/05/11 14:53:08 joergr
* Added CVS/RCS header to each file.
*
*
*/
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