dcmimgle/include/diutils.h

/*
 *
 *  Copyright (C) 1996-2003, OFFIS
 *
 *  This software and supporting documentation were developed by
 *
 *    Kuratorium OFFIS e.V.
 *    Healthcare Information and Communication Systems
 *    Escherweg 2
 *    D-26121 Oldenburg, Germany
 *
 *  THIS SOFTWARE IS MADE AVAILABLE,  AS IS,  AND OFFIS MAKES NO  WARRANTY
 *  REGARDING  THE  SOFTWARE,  ITS  PERFORMANCE,  ITS  MERCHANTABILITY  OR
 *  FITNESS FOR ANY PARTICULAR USE, FREEDOM FROM ANY COMPUTER DISEASES  OR
 *  ITS CONFORMITY TO ANY SPECIFICATION. THE ENTIRE RISK AS TO QUALITY AND
 *  PERFORMANCE OF THE SOFTWARE IS WITH THE USER.
 *
 *  Module:  dcmimgle
 *
 *  Author:  Joerg Riesmeier
 *
 *  Purpose: Utilities (Header)
 *
 *  Last Update:      $Author: joergr $
 *  Update Date:      $Date: 2003/12/23 15:53:22 $
 *  CVS/RCS Revision: $Revision: 1.25 $
 *  Status:           $State: Exp $
 *
 *  CVS/RCS Log at end of file
 *
 */


#ifndef DIUTILS_H
#define DIUTILS_H

#include "osconfig.h"
#include "dctypes.h"
#include "ofglobal.h"
#include "ofcast.h"

#define INCLUDE_CSTDLIB
#define INCLUDE_CSTDIO
#include "ofstdinc.h"

BEGIN_EXTERN_C
#ifdef HAVE_LIBC_H
#include <libc.h>
#endif
END_EXTERN_C


/*---------------------*
 *  const definitions  *
 *---------------------*/


const unsigned long CIF_AcrNemaCompatibility         = 0x0000001;

const unsigned long CIF_WrongPaletteAttributeTags    = 0x0000002;

const unsigned long CIF_MayDetachPixelData           = 0x0000004;

const unsigned long CIF_UsePresentationState         = 0x0000008;

const unsigned long CIF_KeepYCbCrColorModel          = 0x0000010;

const unsigned long CIF_TakeOverExternalDataset      = 0x0000020;

const unsigned long CIF_IgnoreModalityTransformation = 0x0000040;

const unsigned long CIF_IgnoreModalityLutBitDepth    = 0x0000080;


// / true color color mode (for monochrome images only)
const int MI_PastelColor = -1;


/*--------------------*
 *  type definitions  *
 *--------------------*/

enum EP_Interpretation
{
    EPI_Unknown,
    EPI_Monochrome1,
    EPI_Monochrome2,
    EPI_PaletteColor,
    EPI_RGB,
    EPI_HSV,
    EPI_ARGB,
    EPI_CMYK,
    EPI_YBR_Full,
    EPI_YBR_Full_422,
    EPI_YBR_Partial_422
};


struct SP_Interpretation
{
    const char *Name;
    EP_Interpretation Type;
};


struct SB_BitmapFileHeader
{
    char bfType[2];
    Uint32 bfSize;
    Uint16 bfReserved1;
    Uint16 bfReserved2;
    Uint32 bfOffBits;
};


struct SB_BitmapInfoHeader
{
    Uint32 biSize;
    Sint32 biWidth;
    Sint32 biHeight;
    Uint16 biPlanes;
    Uint16 biBitCount;
    Uint32 biCompression;
    Uint32 biSizeImage;
    Sint32 biXPelsPerMeter;
    Sint32 biYPelsPerMeter;
    Uint32 biClrUsed;
    Uint32 biClrImportant;
};


enum EP_Representation
{
    EPR_Uint8, EPR_MinUnsigned = EPR_Uint8,
    EPR_Sint8, EPR_MinSigned = EPR_Sint8,
    EPR_Uint16,
    EPR_Sint16,
    EPR_Uint32, EPR_MaxUnsigned = EPR_Uint32,
    EPR_Sint32, EPR_MaxSigned = EPR_Sint32
};


enum EI_Status
{
    EIS_Normal,
    EIS_NoDataDictionary,
    EIS_InvalidDocument,
    EIS_MissingAttribute,
    EIS_InvalidValue,
    EIS_NotSupportedValue,
    EIS_MemoryFailure,
    EIS_InvalidImage,
    EIS_OtherError
};


enum EM_Overlay
{
    EMO_Default,
    EMO_Replace,
    EMO_Graphic = EMO_Replace,
    EMO_ThresholdReplace,
    EMO_Complement,
    EMO_RegionOfInterest,
    EMO_BitmapShutter
};


enum ES_PresentationLut
{
    ESP_Default,
    ESP_Identity,
    ESP_Inverse,
    ESP_LinOD
};


enum EP_Polarity
{
    EPP_Normal,
    EPP_Reverse
};


/*----------------------------*
 *  constant initializations  *
 *----------------------------*/

const SP_Interpretation PhotometricInterpretationNames[] =
{
    {"MONOCHROME1",   EPI_Monochrome1},
    {"MONOCHROME2",   EPI_Monochrome2},
    {"PALETTECOLOR",  EPI_PaletteColor},        // space deleted to simplify detection
    {"RGB",           EPI_RGB},
    {"HSV",           EPI_HSV},
    {"ARGB",          EPI_ARGB},
    {"CMYK",          EPI_CMYK},
    {"YBRFULL",       EPI_YBR_Full},            // underscore deleted to simplify detection
    {"YBRFULL422",    EPI_YBR_Full_422},        // underscores deleted to simplify detection
    {"YBRPARTIAL422", EPI_YBR_Partial_422},     // underscores deleted to simplify detection
    {NULL,            EPI_Unknown}
};


/*---------------------*
 *  macro definitions  *
 *---------------------*/

#define MAX_UINT Uint32
#define MAX_SINT Sint32

#define MAX_BITS 32
#define MAX_RAWPPM_BITS 8
#define MAX_INTERPOLATION_BITS 16

#define bitsof(expr) (sizeof(expr) << 3)


/*----------------------*
 *  class declarations  *
 *----------------------*/

class DicomImageClass
{

 public:

    static inline unsigned long maxval(const int mv_bits,
                                       const unsigned long mv_pos = 1)
    {
        return (mv_bits < MAX_BITS) ? (OFstatic_cast(unsigned long, 1) << mv_bits) - mv_pos : OFstatic_cast(unsigned long, -1);
    }

    static inline unsigned int tobits(unsigned long tb_value,
                                      const unsigned long tb_pos = 1)
    {
        if (tb_value > 0)
            tb_value -= tb_pos;
        register unsigned int tb_bits = 0;
        while (tb_value > 0)
        {
            ++tb_bits;
            tb_value >>= 1;
        }
        return tb_bits;
    }

    static EP_Representation determineRepresentation(double minvalue,
                                                     double maxvalue);

    static void setDebugLevel(const int level)
    {
        DebugLevel.set(level);
    }

    static int getDebugLevel()
    {
        return DebugLevel.get();
    }

    static int checkDebugLevel(const int level)
    {
        return DebugLevel.get() & level;
    }


    static const int DL_NoMessages;
    static const int DL_Errors;
    static const int DL_Warnings;
    static const int DL_Informationals;
    static const int DL_DebugMessages;


  private:

    static OFGlobal<int> DebugLevel;
};


#endif


/*
 *
 * CVS/RCS Log:
 * $Log: diutils.h,v $
 * Revision 1.25  2003/12/23 15:53:22  joergr
 * Replaced post-increment/decrement operators by pre-increment/decrement
 * operators where appropriate (e.g. 'i++' by '++i').
 *
 * Revision 1.24  2003/12/17 16:17:29  joergr
 * Added new compatibility flag that allows to ignore the third value of LUT
 * descriptors and to determine the bits per table entry automatically.
 *
 * Revision 1.23  2003/12/08 18:49:54  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 1.22  2003/05/20 09:19:51  joergr
 * Added new configuration/compatibility flag that allows to ignore the
 * modality transform stored in the dataset.
 *
 * Revision 1.21  2002/11/27 14:08:08  meichel
 * Adapted module dcmimgle to use of new header file ofstdinc.h
 *
 * Revision 1.20  2002/06/26 16:08:14  joergr
 * Added configuration flag that enables the DicomImage class to take the
 * responsibility of an external DICOM dataset (i.e. delete it on destruction).
 *
 * Revision 1.19  2001/11/09 16:25:59  joergr
 * Added support for Window BMP file format.
 *
 * Revision 1.18  2001/09/28 13:11:00  joergr
 * Added new flag (CIF_KeepYCbCrColorModel) which avoids conversion of YCbCr
 * color models to RGB.
 *
 * Revision 1.17  2001/06/01 15:49:52  meichel
 * Updated copyright header
 *
 * Revision 1.16  2000/07/07 13:40:31  joergr
 * Added support for LIN OD presentation LUT shape.
 *
 * Revision 1.15  2000/06/07 14:30:28  joergr
 * Added method to set the image polarity (normal, reverse).
 *
 * Revision 1.14  2000/04/28 12:32:33  joergr
 * DebugLevel - global for the module - now derived from OFGlobal (MF-safe).
 *
 * Revision 1.13  2000/03/08 16:24:25  meichel
 * Updated copyright header.
 *
 * Revision 1.12  2000/02/23 15:12:16  meichel
 * Corrected macro for Borland C++ Builder 4 workaround.
 *
 * Revision 1.11  2000/02/01 10:52:38  meichel
 * Avoiding to include <stdlib.h> as extern "C" on Borland C++ Builder 4,
 *   workaround for bug in compiler header files.
 *
 * Revision 1.10  1999/09/17 13:08:13  joergr
 * Added/changed/completed DOC++ style comments in the header files.
 *
 * Revision 1.9  1999/07/23 14:16:16  joergr
 * Added flag to avoid color space conversion for color images (not yet
 * implemented).
 *
 * Revision 1.8  1999/04/30 16:33:19  meichel
 * Now including stdio.h in diutils.h, required on SunOS
 *
 * Revision 1.7  1999/04/28 14:55:41  joergr
 * Added experimental support to create grayscale images with more than 256
 * shades of gray to be displayed on a consumer monitor (use pastel colors).
 *
 * Revision 1.6  1999/03/24 17:20:28  joergr
 * Added/Modified comments and formatting.
 *
 * Revision 1.5  1999/02/03 17:36:06  joergr
 * Moved global functions maxval() and determineRepresentation() to class
 * DicomImageClass (as static methods).
 * Added BEGIN_EXTERN_C and END_EXTERN_C to some C includes.
 *
 * Revision 1.4  1999/01/20 15:13:12  joergr
 * Added new overlay plane mode for bitmap shutters.
 *
 * Revision 1.3  1998/12/23 11:38:08  joergr
 * Introduced new overlay mode item EMO_Graphic (= EMO_Replace).
 *
 * Revision 1.2  1998/12/16 16:40:15  joergr
 * Some layouting.
 *
 * Revision 1.1  1998/11/27 15:51:45  joergr
 * Added copyright message.
 * Introduced global debug level for dcmimage module to control error output.
 * Moved type definitions to diutils.h.
 * Added methods to support presentation LUTs and shapes.
 * Introduced configuration flags to adjust behaviour in different cases.
 *
 * Revision 1.5  1998/06/25 08:50:10  joergr
 * Added compatibility mode to support ACR-NEMA images and wrong
 * palette attribute tags.
 *
 * Revision 1.4  1998/05/11 14:53:30  joergr
 * Added CVS/RCS header to each file.
 *
 *
 */

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