/usr/include/dcmtk/dcmimage/dicoopxt.h is in libdcmtk2-dev 3.6.0-15.
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*
* 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: DicomColorOutputPixelTemplate (Header)
*
* Last Update: $Author: joergr $
* Update Date: $Date: 2010-10-14 13:16:29 $
* CVS/RCS Revision: $Revision: 1.28 $
* Status: $State: Exp $
*
* CVS/RCS Log at end of file
*
*/
#ifndef DICOOPXT_H
#define DICOOPXT_H
#include "dcmtk/config/osconfig.h"
#include "dcmtk/dcmimage/dicoopx.h"
#include "dcmtk/dcmimage/dicopx.h"
#include "dcmtk/dcmimgle/dipxrept.h"
#include "dcmtk/ofstd/ofbmanip.h"
/*---------------------*
* class declaration *
*---------------------*/
/** Template class to create color output data
*/
template<class T1, class T2>
class DiColorOutputPixelTemplate
: public DiColorOutputPixel,
public DiPixelRepresentationTemplate<T2>
{
public:
/** constructor
*
** @param buffer storage area for the output pixel data (optional, maybe NULL)
* @param pixel pointer to intermediate pixel representation (color)
* @param count number of pixels per frame
* @param frame frame to be rendered
* @param bits1 bit depth of input data (intermediate)
* @param bits2 bit depth of output data
* @param planar flag indicating whether data shall be stored color-by-pixel or color-by-plane
* @param inverse invert pixel data if true (0/0/0 = white)
*/
DiColorOutputPixelTemplate(void *buffer,
const DiColorPixel *pixel,
const unsigned long count,
const unsigned long frame,
const int bits1, /* input depth */
const int bits2, /* output depth */
const int planar,
const int inverse)
: DiColorOutputPixel(pixel, count, frame),
Data(NULL),
DeleteData(buffer == NULL),
isPlanar(planar)
{
if ((pixel != NULL) && (Count > 0) && (FrameSize >= Count))
{
Data = OFstatic_cast(T2 *, buffer);
convert(OFstatic_cast(const T1 **, OFconst_cast(void *, pixel->getData())), frame * FrameSize, bits1, bits2, planar, inverse);
}
}
/** constructor
*
** @param buffer storage area for the output pixel data (optional, maybe NULL)
* @param pixel pointer to intermediate pixel representation
* @param count number of pixels per frame
* @param frame frame to be rendered
* (#)param frames (total number of frames present in intermediate representation)
* @param planar flag indicating whether data shall be stored color-by-pixel or color-by-plane
*/
DiColorOutputPixelTemplate(void *buffer,
const DiPixel *pixel,
const unsigned long count,
const unsigned long frame,
const unsigned long /*frames*/,
const int planar)
: DiColorOutputPixel(pixel, count, frame),
Data(NULL),
DeleteData(buffer == NULL),
isPlanar(planar)
{
if ((pixel != NULL) && (Count > 0) && (FrameSize >= Count))
Data = OFstatic_cast(T2 *, buffer);
}
/** destructor
*/
virtual ~DiColorOutputPixelTemplate()
{
if (DeleteData)
delete[] Data;
}
/** get integer representation
*
** @return integer representation
*/
inline EP_Representation getRepresentation() const
{
return DiPixelRepresentationTemplate<T2>::getRepresentation();
}
/** get size of one pixel / item in the pixel array
*
** @return item size
*/
inline size_t getItemSize() const
{
return sizeof(T2) * 3;
}
/** get pointer to output pixel data
*
** @return pointer to pixel data
*/
inline const void *getData() const
{
return OFstatic_cast(const void *, Data);
}
/** get pointer to output pixel data
*
** @return pointer to pixel data
*/
virtual void *getDataPtr()
{
return OFstatic_cast(void *, Data);
}
/** get pointer to given plane of output pixel data
*
** @param plane number of the plane to be retrieved (0..2)
*
** @return pointer to beginning of plane if sucessful, NULL otherwise
*/
inline const void *getPlane(const int plane) const
{
void *result = NULL;
if (Data != NULL)
{
if (plane <= 0)
result = OFstatic_cast(void *, Data);
else
{
if (isPlanar)
result = OFstatic_cast(void *, Data + ((plane == 1) ? 1 : 2) * FrameSize);
else
result = OFstatic_cast(void *, Data + ((plane == 1) ? 1 : 2));
}
}
return result;
}
/** write pixel data of selected frame to PPM/ASCII file
*
** @param stream open C++ output stream
*
** @return status, true if successful, false otherwise
*/
int writePPM(STD_NAMESPACE ostream& stream) const
{
if (Data != NULL)
{
register T2 *p = Data;
register unsigned long i;
register int j;
for (i = FrameSize; i != 0; --i)
for (j = 3; j != 0; --j)
stream << OFstatic_cast(unsigned long, *(p++)) << " "; // typecast to resolve problems with 'char'
return 1;
}
return 0;
}
/** write pixel data of selected frame to PPM/ASCII file
*
** @param stream open C file stream
*
** @return status, true if successful, false otherwise
*/
int writePPM(FILE *stream) const
{
if (Data != NULL)
{
register T2 *p = Data;
register unsigned long i;
register int j;
for (i = FrameSize; i != 0; --i)
for (j = 3; j != 0; --j)
fprintf(stream, "%lu ", OFstatic_cast(unsigned long, *(p++)));
return 1;
}
return 0;
}
protected:
/// pointer to the storage area where the output data should be stored
T2 *Data;
private:
/** convert intermediate pixel data to output format (render pixel data)
*
** @param pixel pointer to intermediate pixel representation (color)
* @param start offset to first pixel to be converted
* @param bits1 bit depth of input data (intermediate)
* @param bits2 bit depth of output data
* @param planar flag indicating whether data shall be stored color-by-pixel or color-by-plane
* @param inverse invert pixel data if true (0/0/0 = white)
*/
void convert(const T1 *pixel[3],
const unsigned long start,
const int bits1,
const int bits2,
const int planar,
const int inverse)
{
if ((pixel[0] != NULL) && (pixel[1] != NULL) && (pixel[2] != NULL))
{
if (Data == NULL)
Data = new T2[FrameSize * 3];
if (Data != NULL)
{
DCMIMAGE_DEBUG("converting color pixel data to output format");
register T2 *q = Data;
register unsigned long i;
const T2 max2 = OFstatic_cast(T2, DicomImageClass::maxval(bits2));
if (planar)
{
register const T1 *p;
if (bits1 == bits2)
{
for (int j = 0; j < 3; ++j)
{
p = pixel[j] + start;
/* invert output data */
if (inverse)
{
for (i = Count; i != 0; --i) // copy inverted data
*(q++) = max2 - OFstatic_cast(T2, *(p++));
} else {
for (i = Count; i != 0; --i) // copy
*(q++) = OFstatic_cast(T2, *(p++));
}
if (Count < FrameSize)
{
OFBitmanipTemplate<T2>::zeroMem(q, FrameSize - Count); // set remaining pixels of frame to zero
q += (FrameSize - Count);
}
}
}
else if (bits1 < bits2) // optimization possible using LUT
{
const double gradient1 = OFstatic_cast(double, DicomImageClass::maxval(bits2)) /
OFstatic_cast(double, DicomImageClass::maxval(bits1));
const T2 gradient2 = OFstatic_cast(T2, gradient1);
for (int j = 0; j < 3; ++j)
{
p = pixel[j] + start;
if (gradient1 == OFstatic_cast(double, gradient2)) // integer multiplication?
{
/* invert output data */
if (inverse)
{
for (i = Count; i != 0; --i) // expand depth & invert
*(q++) = max2 - OFstatic_cast(T2, *(p++)) * gradient2;
} else {
for (i = Count; i != 0; --i) // expand depth
*(q++) = OFstatic_cast(T2, *(p++)) * gradient2;
}
} else {
/* invert output data */
if (inverse)
{
for (i = Count; i != 0; --i) // expand depth & invert
*(q++) = max2 - OFstatic_cast(T2, OFstatic_cast(double, *(p++)) * gradient1);
} else {
for (i = Count; i != 0; --i) // expand depth
*(q++) = OFstatic_cast(T2, OFstatic_cast(double, *(p++)) * gradient1);
}
}
if (Count < FrameSize)
{
OFBitmanipTemplate<T2>::zeroMem(q, FrameSize - Count); // set remaining pixels of frame to zero
q += (FrameSize - Count);
}
} // ... to be enhanced !
}
else /* bits1 > bits2 */
{
const int shift = bits1 - bits2;
for (int j = 0; j < 3; ++j)
{
p = pixel[j] + start;
/* invert output data */
if (inverse)
{
for (i = Count; i != 0; --i) // reduce depth & invert
*(q++) = max2 - OFstatic_cast(T2, *(p++) >> shift);
} else {
for (i = Count; i != 0; --i) // reduce depth
*(q++) = OFstatic_cast(T2, *(p++) >> shift);
}
if (Count < FrameSize)
{
OFBitmanipTemplate<T2>::zeroMem(q, FrameSize - Count); // set remaining pixels of frame to zero
q += (FrameSize - Count);
}
}
}
}
else /* not planar */
{
register int j;
if (bits1 == bits2)
{
/* invert output data */
if (inverse)
{
for (i = start; i < start + Count; ++i)
for (j = 0; j < 3; ++j) // copy inverted data
*(q++) = max2 - OFstatic_cast(T2, pixel[j][i]);
} else {
for (i = start; i < start + Count; ++i)
for (j = 0; j < 3; ++j) // copy
*(q++) = OFstatic_cast(T2, pixel[j][i]);
}
}
else if (bits1 < bits2) // optimization possible using LUT
{
const double gradient1 = OFstatic_cast(double, DicomImageClass::maxval(bits2)) /
OFstatic_cast(double, DicomImageClass::maxval(bits1));
const T2 gradient2 = OFstatic_cast(T2, gradient1);
if (gradient1 == OFstatic_cast(double, gradient2)) // integer multiplication?
{
/* invert output data */
if (inverse)
{
for (i = start; i < start + Count; ++i) // expand depth & invert
for (j = 0; j < 3; ++j)
*(q++) = max2 - OFstatic_cast(T2, pixel[j][i]) * gradient2;
} else {
for (i = start; i < start + Count; ++i)
for (j = 0; j < 3; ++j) // expand depth
*(q++) = OFstatic_cast(T2, pixel[j][i]) * gradient2;
}
} else {
/* invert output data */
if (inverse)
{
for (i = start; i < start + Count; ++i)
for (j = 0; j < 3; ++j) // expand depth & invert
*(q++) = max2 - OFstatic_cast(T2, OFstatic_cast(double, pixel[j][i]) * gradient1);
} else {
for (i = start; i < start + Count; ++i)
for (j = 0; j < 3; ++j) // expand depth
*(q++) = OFstatic_cast(T2, OFstatic_cast(double, pixel[j][i]) * gradient1);
}
}
}
else /* bits1 > bits2 */
{
const int shift = bits1 - bits2;
/* invert output data */
if (inverse)
{
for (i = start; i < start + Count; ++i)
for (j = 0; j < 3; ++j) // reduce depth & invert
*(q++) = max2 - OFstatic_cast(T2, pixel[j][i] >> shift);
} else {
for (i = start; i < start + Count; ++i)
for (j = 0; j < 3; ++j) // reduce depth
*(q++) = OFstatic_cast(T2, pixel[j][i] >> shift);
}
}
if (Count < FrameSize)
OFBitmanipTemplate<T2>::zeroMem(q, 3 * (FrameSize - Count)); // set remaining pixels of frame to zero
}
}
} else
Data = NULL;
}
/// flag indicating whether the output data buffer should be deleted in the destructor
int DeleteData;
/// flag indicating whether pixel data is stored color-by-pixel or color-by-plane
int isPlanar;
// --- declarations to avoid compiler warnings
DiColorOutputPixelTemplate(const DiColorOutputPixelTemplate<T1,T2> &);
DiColorOutputPixelTemplate<T1,T2> &operator=(const DiColorOutputPixelTemplate<T1,T2> &);
};
#endif
/*
*
* CVS/RCS Log:
* $Log: dicoopxt.h,v $
* Revision 1.28 2010-10-14 13:16:29 joergr
* Updated copyright header. Added reference to COPYRIGHT file.
*
* Revision 1.27 2010-10-05 15:34:41 joergr
* Output information on conversion process to the logger (debug mode).
* Fixed various Doxygen API documentation issues.
*
* Revision 1.26 2010-03-01 09:08:46 uli
* Removed some unnecessary include directives in the headers.
*
* Revision 1.25 2006-08-15 16:35:01 meichel
* Updated the code in module dcmimage to correctly compile when
* all standard C++ classes remain in namespace std.
*
* Revision 1.24 2005/12/08 16:01:33 meichel
* Changed include path schema for all DCMTK header files
*
* Revision 1.23 2004/02/06 11:18:18 joergr
* Distinguish more clearly between const and non-const access to pixel data.
*
* Revision 1.22 2003/12/23 16:06:21 joergr
* Replaced additional post-increment/decrement operators by pre-increment/
* decrement operators.
*
* Revision 1.21 2003/12/23 11:36:24 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.
* Replaced post-increment/decrement operators by pre-increment/decrement
* operators where appropriate (e.g. 'i++' by '++i').
*
* Revision 1.20 2002/06/26 17:20:31 joergr
* Added type cast to keep MSVC6 quiet.
*
* Revision 1.19 2002/06/26 16:17:16 joergr
* Added support for polarity flag to color images.
*
* Revision 1.18 2001/11/09 16:42:04 joergr
* Removed 'inline' specifier from certain methods.
*
* Revision 1.17 2001/06/01 15:49:29 meichel
* Updated copyright header
*
* Revision 1.16 2000/03/30 14:15:44 joergr
* Corrected wrong bit expansion of output pixel data (left shift is not
* correct).
*
* Revision 1.15 2000/03/08 16:21:50 meichel
* Updated copyright header.
*
* Revision 1.14 1999/09/17 14:03:43 joergr
* Enhanced efficiency of some "for" loops.
*
* Revision 1.13 1999/08/17 10:28:47 joergr
* Commented unused parameter name to avoid compiler warnings.
* Removed unused parameter.
*
* Revision 1.12 1999/07/23 13:20:45 joergr
* Enhanced handling of corrupted pixel data (wrong length).
*
* Revision 1.11 1999/04/30 16:12:03 meichel
* Minor code purifications to keep IBM xlC quiet
*
* Revision 1.10 1999/04/29 09:31:13 joergr
* Moved color related image files back to non-public part.
*
* Revision 1.1 1999/04/28 14:57:31 joergr
* Moved files from dcmimage module to dcmimgle to support new pastel color
* output format.
*
* Revision 1.8 1999/01/20 14:43:12 joergr
* Replaced invocation of getCount() by member variable Count where possible.
* Added new output method to fill external memory buffer with rendered pixel
* data.
*
* Revision 1.7 1998/12/22 13:23:57 joergr
* Added comments that the routines for expanding pixel's depth have to be
* enhanced in the future (replicate bit pattern instead of shifting). Same
* question for reducing depth.
*
* Revision 1.6 1998/11/27 13:46:00 joergr
* Added copyright message. Replaced delete by delete[] for array types.
*
* Revision 1.5 1998/07/01 08:39:19 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 14:53:12 joergr
* Added CVS/RCS header to each file.
*
*
*/
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