dcmjpeg/include/djeijg12.h

/*
 *
 *  Copyright (C) 1997-2001, 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:  dcmjpeg
 *
 *  Author:  Norbert Olges, Marco Eichelberg
 *
 *  Purpose: compression routines of the IJG JPEG library configured for 12 bits/sample. 
 *
 *  Last Update:      $Author: meichel $
 *  Update Date:      $Date: 2001/11/19 15:13:28 $
 *  Source File:      $Source: /share/dicom/cvs-depot/dcmtk/dcmjpeg/include/djeijg12.h,v $
 *  CVS/RCS Revision: $Revision: 1.2 $
 *  Status:           $State: Exp $
 *
 *  CVS/RCS Log at end of file
 *
 */

#ifndef DJEIJG12_H
#define DJEIJG12_H

#include "osconfig.h"
#include "oflist.h"
#include "djencabs.h"

extern "C"
{
  struct jpeg_compress_struct;
  typedef struct jpeg_compress_struct * j_compress_ptr;
  struct jpeg_decompress_struct;
  typedef struct jpeg_decompress_struct * j_decompress_ptr;
}

class DJCodecParameter;


class DJCompressIJG12Bit: public DJEncoder
{
public:

  DJCompressIJG12Bit(const DJCodecParameter& cp, EJ_Mode mode, Uint8 quality);

  DJCompressIJG12Bit(const DJCodecParameter& cp, EJ_Mode mode, int prediction, int ptrans);

  virtual ~DJCompressIJG12Bit();

  virtual OFCondition encode(
    Uint16 columns,
    Uint16 rows,
    EP_Interpretation interpr,
    Uint16 samplesPerPixel,
    Uint16 *image_buffer,
    Uint8 *&to,
    Uint32 &length);

  virtual OFCondition encode(
    Uint16 columns,
    Uint16 rows,
    EP_Interpretation interpr,
    Uint16 samplesPerPixel,
    Uint8 *image_buffer,
    Uint8 *&to,
    Uint32 &length);

  virtual Uint16 bytesPerSample() const { return 2; }

  virtual Uint16 bitsPerSample() const { return 12; }

  void initDestination(jpeg_compress_struct *cinfo);

  int emptyOutputBuffer(jpeg_compress_struct *cinfo);

  void termDestination(jpeg_compress_struct *cinfo);
    
  virtual void outputMessage(void *arg) const;

private:

  DJCompressIJG12Bit(const DJCompressIJG12Bit&);

  DJCompressIJG12Bit& operator=(const DJCompressIJG12Bit&);

  void cleanup();

  const DJCodecParameter *cparam;
  
  Uint8 quality;

  int psv;

  int pt;

  EJ_Mode modeofOperation;

  OFList<unsigned char *> pixelDataList;

  size_t bytesInLastBlock;

};

#endif

/*
 * CVS/RCS Log
 * $Log: djeijg12.h,v $
 * Revision 1.2  2001/11/19 15:13:28  meichel
 * Introduced verbose mode in module dcmjpeg. If enabled, warning
 *   messages from the IJG library are printed on ofConsole, otherwise
 *   the library remains quiet.
 *
 * Revision 1.1  2001/11/13 15:56:23  meichel
 * Initial release of module dcmjpeg
 *
 *
 */

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