/usr/include/dcmtk/dcmimage/dicopxt.h is in libdcmtk-dev 3.6.1~20160216-4.
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*
* Copyright (C) 1996-2014, 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: DicomColorPixelTemplate (Header)
*
*/
#ifndef DICOPXT_H
#define DICOPXT_H
#include "dcmtk/config/osconfig.h"
#include "dcmtk/ofstd/ofbmanip.h"
#include "dcmtk/dcmimage/dicopx.h"
#include "dcmtk/dcmimgle/dipxrept.h"
/********************************************************************/
inline Uint8 removeSign(const Uint8 value, const Uint8)
{
return value;
}
inline Uint16 removeSign(const Uint16 value, const Uint16)
{
return value;
}
inline Uint32 removeSign(const Uint32 value, const Uint32)
{
return value;
}
inline Uint8 removeSign(const Sint8 value, const Sint8 offset)
{
return OFstatic_cast(Uint8, OFstatic_cast(Sint16, value) + OFstatic_cast(Sint16, offset) + 1);
}
inline Uint16 removeSign(const Sint16 value, const Sint16 offset)
{
return OFstatic_cast(Uint16, OFstatic_cast(Sint32, value) + OFstatic_cast(Sint32, offset) + 1);
}
/*
inline Uint32 removeSign(const Sint32 value, const Sint32 offset)
{
return (value < 0) ? OFstatic_cast(Uint32, value + offset + 1) : OFstatic_cast(Uint32, value) + OFstatic_cast(Uint32, offset) + 1;
}
inline Uint8 removeSign(const Sint8 value, const Uint8 mask)
{
return OFstatic_cast(Uint8, value) ^ mask;
}
inline Uint16 removeSign(const Sint16 value, const Uint16 mask)
{
return OFstatic_cast(Uint16, value) ^ mask;
}
*/
inline Uint32 removeSign(const Sint32 value, const Uint32 mask)
{
return OFstatic_cast(Uint32, value) ^ mask;
}
/*---------------------*
* class declaration *
*---------------------*/
/** Template class to handle color pixel data
*/
template<class T>
class DiColorPixelTemplate
: public DiColorPixel,
public DiPixelRepresentationTemplate<T>
{
public:
/** constructor
*
** @param docu pointer to the DICOM document
* @param pixel pointer to input pixel data
* @param samples number of expected samples per pixel (for checking purposes)
* @param status status of the image object (reference variable)
* @param sample_rate dummy parameter (used for derived classes only)
*/
DiColorPixelTemplate(const DiDocument *docu,
const DiInputPixel *pixel,
const Uint16 samples,
EI_Status &status,
const Uint16 sample_rate = 0)
: DiColorPixel(docu, pixel, samples, status, sample_rate)
{
Data[0] = NULL;
Data[1] = NULL;
Data[2] = NULL;
}
/** destructor
*/
virtual ~DiColorPixelTemplate()
{
#if defined(HAVE_STD__NOTHROW) && defined(HAVE_NOTHROW_DELETE)
/* use a non-throwing delete (if available) */
operator delete[] (Data[0], std::nothrow);
operator delete[] (Data[1], std::nothrow);
operator delete[] (Data[2], std::nothrow);
#else
delete[] Data[0];
delete[] Data[1];
delete[] Data[2];
#endif
}
/** get integer representation
*
** @return integer representation of the internally stored pixel data
*/
inline EP_Representation getRepresentation() const
{
return DiPixelRepresentationTemplate<T>::getRepresentation();
}
/** get pointer to internal array of pixel data.
* The returned array [0..2] points to the three image planes.
*
** @return pointer to array of pixel data
*/
inline const void *getData() const
{
return OFstatic_cast(const void *, Data);
}
/** get pointer to internal array of pixel data.
* The returned array [0..2] points to the three image planes.
*
** @return pointer to array of pixel data
*/
inline void *getDataPtr()
{
return OFstatic_cast(void *, Data);
}
/** get pointer to internal array of pixel data.
* The returned array [0..2] points to the three image planes.
*
** @return reference to pointer to pixel data
*/
inline void *getDataArrayPtr()
{
return OFstatic_cast(void *, Data);
}
/** fill given memory block with pixel data (all three image planes, RGB)
*
** @param data pointer to memory block (array of 8 or 16 bit values, OB/OW)
* @param count number of T-size entries allocated in the 'data' array
* @param fcount number of pixels per frame
* @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
*
** @return OFTrue if successful, OFFalse otherwise
*/
OFBool getPixelData(void *data,
const unsigned long count,
const unsigned long fcount,
const unsigned long frames,
const int planar) const
{
OFBool result = OFFalse;
/* check parameters and internal data */
if ((data != NULL) && (count >= Count * 3) && (frames > 0) && (frames * fcount <= Count) &&
(Data[0] != NULL) && (Data[1] != NULL) && (Data[2] != NULL))
{
register T *q = OFstatic_cast(T *, data);
register int j;
register unsigned long k;
register unsigned long offset = 0;
if (planar)
{
/* for all frames ... */
for (k = 0; k < frames; ++k)
{
/* copy all three planes to the given memory block */
for (j = 0; j < 3; ++j)
{
OFBitmanipTemplate<T>::copyMem(Data[j] + offset, q, fcount);
q += fcount;
}
offset += fcount;
}
} else {
register unsigned long i;
/* for all frames ... */
for (k = 0; k < frames; ++k)
{
/* copy pixel data values from internal representation */
for (i = 0; i < fcount; ++i)
{
for (j = 0; j < 3; ++j)
*(q++) = Data[j][i + offset];
}
offset += fcount;
}
}
result = OFTrue;
}
return result;
}
/** create true color (24/32 bit) bitmap for MS Windows.
*
** @param data untyped pointer memory buffer (set to NULL if not allocated externally)
* @param size size of the memory buffer in bytes (if 0 'data' is set to NULL)
* @param width number of columns of the image
* @param height number of rows of the image
* @param frame index of frame to be converted (starting from 0)
* @param fromBits number of bits per sample used for internal representation of the image
* @param toBits number of bits per sample used for the output bitmap (<= 8)
* @param mode color output mode (24 or 32 bits, see dcmimgle/dcmimage.h for details)
* @param upsideDown specifies the order of lines in the images (0 = top-down, bottom-up otherwise)
* @param padding align each line to a 32-bit address if true
*
** @return number of bytes allocated by the bitmap, or 0 if an error occurred
*/
unsigned long createDIB(void *&data,
const unsigned long size,
const Uint16 width,
const Uint16 height,
const unsigned long frame,
const int fromBits,
const int toBits,
const int mode,
const int upsideDown,
const int padding) const
{
unsigned long bytes = 0;
if ((Data[0] != NULL) && (Data[1] != NULL) && (Data[2] != NULL) && (toBits <= 8))
{
const unsigned long count = OFstatic_cast(unsigned long, width) * OFstatic_cast(unsigned long, height);
const unsigned long start = count * frame + ((upsideDown) ?
OFstatic_cast(unsigned long, height - 1) * OFstatic_cast(unsigned long, width) : 0);
const signed long nextRow = (upsideDown) ? -2 * OFstatic_cast(signed long, width) : 0;
register const T *r = Data[0] + start;
register const T *g = Data[1] + start;
register const T *b = Data[2] + start;
register Uint16 x;
register Uint16 y;
if (mode == 24) // 24 bits per pixel
{
const unsigned long wid3 = OFstatic_cast(unsigned long, width) * 3;
// each line has to start at 32-bit-address, if 'padding' is true
const int gap = (padding) ? OFstatic_cast(int, (4 - (wid3 & 0x3)) & 0x3) : 0;
unsigned long fsize = (wid3 + gap) * OFstatic_cast(unsigned long, height);
if ((data == NULL) || (size >= fsize))
{
if (data == NULL)
data = new Uint8[fsize];
if (data != NULL)
{
register Uint8 *q = OFstatic_cast(Uint8 *, data);
if (fromBits == toBits)
{
/* copy pixel data as is */
for (y = height; y != 0; y--)
{
for (x = width; x != 0; x--)
{
/* reverse sample order: B-G-R */
*(q++) = OFstatic_cast(Uint8, *(b++));
*(q++) = OFstatic_cast(Uint8, *(g++));
*(q++) = OFstatic_cast(Uint8, *(r++));
}
r += nextRow; g += nextRow; b += nextRow; // go backwards if 'upsideDown'
q += gap; // new line: jump to next 32-bit address
}
}
else if (fromBits < toBits)
{
/* increase color depth: multiply with factor */
const double gradient1 = OFstatic_cast(double, DicomImageClass::maxval(toBits)) /
OFstatic_cast(double, DicomImageClass::maxval(fromBits));
const Uint8 gradient2 = OFstatic_cast(Uint8, gradient1);
if (gradient1 == OFstatic_cast(double, gradient2)) // integer multiplication?
{
for (y = height; y != 0; y--)
{
for (x = width; x != 0; x--)
{
/* reverse sample order: B-G-R */
*(q++) = OFstatic_cast(Uint8, *(b++) * gradient2);
*(q++) = OFstatic_cast(Uint8, *(g++) * gradient2);
*(q++) = OFstatic_cast(Uint8, *(r++) * gradient2);
}
r += nextRow; g += nextRow; b += nextRow; // go backwards if 'upsideDown'
q += gap; // new line: jump to next 32-bit address
}
} else {
for (y = height; y != 0; y--)
{
for (x = width; x != 0; x--)
{
/* reverse sample order: B-G-R */
*(q++) = OFstatic_cast(Uint8, OFstatic_cast(double, *(b++)) * gradient1);
*(q++) = OFstatic_cast(Uint8, OFstatic_cast(double, *(g++)) * gradient1);
*(q++) = OFstatic_cast(Uint8, OFstatic_cast(double, *(r++)) * gradient1);
}
r += nextRow; g += nextRow; b += nextRow; // go backwards if 'upsideDown'
q += gap; // new line: jump to next 32-bit address
}
}
}
else /* fromBits > toBits */
{
/* reduce color depth: right shift */
const int shift = fromBits - toBits;
for (y = height; y != 0; y--)
{
for (x = width; x != 0; x--)
{
/* reverse sample order: B-G-R */
*(q++) = OFstatic_cast(Uint8, *(b++) >> shift);
*(q++) = OFstatic_cast(Uint8, *(g++) >> shift);
*(q++) = OFstatic_cast(Uint8, *(r++) >> shift);
}
r += nextRow; g += nextRow; b += nextRow; // go backwards if 'upsideDown'
q += gap; // new line: jump to next 32-bit address
}
}
bytes = fsize;
}
}
}
else if (mode == 32) // 32 bits per pixel
{
const unsigned long fsize = count * 4;
if ((data == NULL) || (size >= fsize))
{
if (data == NULL)
data = new Uint32[count];
if (data != NULL)
{
register Uint32 *q = OFstatic_cast(Uint32 *, data);
if (fromBits == toBits)
{
/* copy pixel data as is */
for (y = height; y != 0; y--)
{
for (x = width; x != 0; x--)
{
/* normal sample order: 0-R-G-B */
*(q++) = (OFstatic_cast(Uint32, *(r++)) << 16) |
(OFstatic_cast(Uint32, *(g++)) << 8) |
OFstatic_cast(Uint32, *(b++));
}
r += nextRow; g += nextRow; b += nextRow; // go backwards if 'upsideDown'
}
}
else if (fromBits < toBits)
{
/* increase color depth: multiply with factor */
const double gradient1 = OFstatic_cast(double, DicomImageClass::maxval(toBits)) /
OFstatic_cast(double, DicomImageClass::maxval(fromBits));
const Uint32 gradient2 = OFstatic_cast(Uint32, gradient1);
if (gradient1 == OFstatic_cast(double, gradient2)) // integer multiplication?
{
for (y = height; y != 0; y--)
{
for (x = width; x != 0; x--)
{
/* normal sample order: 0-R-G-B */
*(q++) = (OFstatic_cast(Uint32, *(r++) * gradient2) << 16) |
(OFstatic_cast(Uint32, *(g++) * gradient2) << 8) |
OFstatic_cast(Uint32, *(b++) * gradient2);
}
r += nextRow; g += nextRow; b += nextRow; // go backwards if 'upsideDown'
}
} else {
for (y = height; y != 0; y--)
{
for (x = width; x != 0; x--)
{
/* normal sample order: 0-R-G-B */
*(q++) = (OFstatic_cast(Uint32, OFstatic_cast(double, *(r++)) * gradient1) << 16) |
(OFstatic_cast(Uint32, OFstatic_cast(double, *(g++)) * gradient1) << 8) |
OFstatic_cast(Uint32, OFstatic_cast(double, *(b++)) * gradient1);
}
r += nextRow; g += nextRow; b += nextRow; // go backwards if 'upsideDown'
}
}
}
else /* fromBits > toBits */
{
/* reduce color depth: right shift */
const int shift = fromBits - toBits;
for (y = height; y != 0; y--)
{
for (x = width; x != 0; x--)
{
/* normal sample order: 0-R-G-B */
*(q++) = (OFstatic_cast(Uint32, *(r++) >> shift) << 16) |
(OFstatic_cast(Uint32, *(g++) >> shift) << 8) |
OFstatic_cast(Uint32, *(b++) >> shift);
}
r += nextRow; g += nextRow; b += nextRow; // go backwards if 'upsideDown'
}
}
bytes = fsize;
}
}
}
}
return bytes;
}
/** create true color (32 bit) bitmap for Java (AWT default format).
*
** @param data resulting pointer to bitmap data (set to NULL if an error occurred)
* @param width number of columns of the image
* @param height number of rows of the image
* @param frame index of frame to be converted (starting from 0)
* @param fromBits number of bits per sample used for internal representation of the image
* @param toBits number of bits per sample used for the output bitmap (<= 8)
*
** @return number of bytes allocated by the bitmap, or 0 if an error occurred
*/
unsigned long createAWTBitmap(void *&data,
const Uint16 width,
const Uint16 height,
const unsigned long frame,
const int fromBits,
const int toBits) const
{
data = NULL;
unsigned long bytes = 0;
if ((Data[0] != NULL) && (Data[1] != NULL) && (Data[2] != NULL) && (toBits <= 8))
{
const unsigned long count = OFstatic_cast(unsigned long, width) * OFstatic_cast(unsigned long, height);
data = new Uint32[count];
if (data != NULL)
{
const unsigned long start = count * frame;
register const T *r = Data[0] + start;
register const T *g = Data[1] + start;
register const T *b = Data[2] + start;
register Uint32 *q = OFstatic_cast(Uint32 *, data);
register unsigned long i;
if (fromBits == toBits)
{
/* copy pixel data as is */
for (i = count; i != 0; --i)
{
/* sample order: R-G-B */
*(q++) = (OFstatic_cast(Uint32, *(r++)) << 24) |
(OFstatic_cast(Uint32, *(g++)) << 16) |
(OFstatic_cast(Uint32, *(b++)) << 8);
}
}
else if (fromBits < toBits)
{
/* increase color depth: multiply with factor */
const double gradient1 = OFstatic_cast(double, DicomImageClass::maxval(toBits)) /
OFstatic_cast(double, DicomImageClass::maxval(fromBits));
const Uint32 gradient2 = OFstatic_cast(Uint32, gradient1);
if (gradient1 == OFstatic_cast(double, gradient2)) // integer multiplication?
{
for (i = count; i != 0; --i)
{
/* sample order: R-G-B */
*(q++) = (OFstatic_cast(Uint32, *(r++) * gradient2) << 24) |
(OFstatic_cast(Uint32, *(g++) * gradient2) << 16) |
(OFstatic_cast(Uint32, *(b++) * gradient2) << 8);
}
} else {
for (i = count; i != 0; --i)
{
/* sample order: R-G-B */
*(q++) = (OFstatic_cast(Uint32, OFstatic_cast(double, *(r++)) * gradient1) << 24) |
(OFstatic_cast(Uint32, OFstatic_cast(double, *(g++)) * gradient1) << 16) |
(OFstatic_cast(Uint32, OFstatic_cast(double, *(b++)) * gradient1) << 8);
}
}
}
else /* fromBits > toBits */
{
/* reduce color depth: right shift */
const int shift = fromBits - toBits;
for (i = count; i != 0; --i)
{
/* sample order: R-G-B */
*(q++) = (OFstatic_cast(Uint32, *(r++) >> shift) << 24) |
(OFstatic_cast(Uint32, *(g++) >> shift) << 16) |
(OFstatic_cast(Uint32, *(b++) >> shift) << 8);
}
}
bytes = count * 4;
}
}
return bytes;
}
protected:
/** constructor
*
** @param pixel pointer to intermediate color pixel data
* @param count number of pixels
*/
DiColorPixelTemplate(const DiColorPixel *pixel,
const unsigned long count)
: DiColorPixel(pixel, count)
{
Data[0] = NULL;
Data[1] = NULL;
Data[2] = NULL;
}
/** initialize internal memory
*
** @param pixel pointer to input pixel data
*
** @return true (1) if successful, false (0) otherwise
*/
inline int Init(const void *pixel)
{
int result = 0;
if (pixel != NULL)
{
result = 1;
/* allocate data buffer for the 3 planes */
for (int j = 0; j < 3; j++)
{
#ifdef HAVE_STD__NOTHROW
/* use a non-throwing new here (if available) because the allocated buffer can be huge */
Data[j] = new (std::nothrow) T[Count];
#else
/* make sure that the pointer is set to NULL in case of error */
try
{
Data[j] = new T[Count];
}
catch (STD_NAMESPACE bad_alloc const &)
{
Data[j] = NULL;
}
#endif
if (Data[j] != NULL)
{
/* erase empty part of the buffer (=blacken the background) */
if (InputCount < Count)
OFBitmanipTemplate<T>::zeroMem(Data[j] + InputCount, Count - InputCount);
} else {
DCMIMAGE_DEBUG("cannot allocate memory buffer for 'Data[" << j << "]' in DiColorPixelTemplate::Init()");
result = 0; // at least one buffer could not be allocated!
}
}
}
return result;
}
/// pointer to pixel data (3 components)
T *Data[3];
private:
// --- declarations to avoid compiler warnings
DiColorPixelTemplate(const DiColorPixelTemplate<T> &);
DiColorPixelTemplate<T> &operator=(const DiColorPixelTemplate<T> &);
};
#endif
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