dcmdata/include/dcmtk/dcmdata/dcrlecce.h

/*
 *
 *  Copyright (C) 2002-2010, 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:  dcmdata
 *
 *  Author:  Marco Eichelberg
 *
 *  Purpose: encoder codec class for RLE
 *
 *  Last Update:      $Author: joergr $
 *  Update Date:      $Date: 2010-10-14 13:15:41 $
 *  CVS/RCS Revision: $Revision: 1.7 $
 *  Status:           $State: Exp $
 *
 *  CVS/RCS Log at end of file
 *
 */

#ifndef DCRLECCE_H
#define DCRLECCE_H

#include "dcmtk/config/osconfig.h"
#include "dcmtk/dcmdata/dccodec.h"  /* for class DcmCodec */

class DcmItem;

class DcmRLECodecEncoder: public DcmCodec
{
public:

  DcmRLECodecEncoder();

  virtual ~DcmRLECodecEncoder();

  virtual OFCondition decode(
    const DcmRepresentationParameter * fromRepParam,
    DcmPixelSequence * pixSeq,
    DcmPolymorphOBOW& uncompressedPixelData,
    const DcmCodecParameter * cp,
    const DcmStack& objStack) const;

  virtual OFCondition decodeFrame(
    const DcmRepresentationParameter * fromParam,
    DcmPixelSequence * fromPixSeq,
    const DcmCodecParameter * cp,
    DcmItem *dataset,
    Uint32 frameNo,
    Uint32& startFragment,
    void *buffer,
    Uint32 bufSize,
    OFString& decompressedColorModel) const;

  virtual OFCondition encode(
    const Uint16 * pixelData,
    const Uint32 length,
    const DcmRepresentationParameter * toRepParam,
    DcmPixelSequence * & pixSeq,
    const DcmCodecParameter *cp,
    DcmStack & objStack) const;

  virtual OFCondition encode(
    const E_TransferSyntax fromRepType,
    const DcmRepresentationParameter * fromRepParam,
    DcmPixelSequence * fromPixSeq,
    const DcmRepresentationParameter * toRepParam,
    DcmPixelSequence * & toPixSeq,
    const DcmCodecParameter * cp,
    DcmStack & objStack) const;

  virtual OFBool canChangeCoding(
    const E_TransferSyntax oldRepType,
    const E_TransferSyntax newRepType) const;

  virtual OFCondition determineDecompressedColorModel(
    const DcmRepresentationParameter *fromParam,
    DcmPixelSequence *fromPixSeq,
    const DcmCodecParameter *cp,
    DcmItem *dataset,
    OFString &decompressedColorModel) const;

private:

  DcmRLECodecEncoder(const DcmRLECodecEncoder&);

  DcmRLECodecEncoder& operator=(const DcmRLECodecEncoder&);

  static OFCondition updateDerivationDescription(
      DcmItem *dataset,
      double ratio);
};

#endif

/*
 * CVS/RCS Log
 * $Log: dcrlecce.h,v $
 * Revision 1.7  2010-10-14 13:15:41  joergr
 * Updated copyright header. Added reference to COPYRIGHT file.
 *
 * Revision 1.6  2009-11-17 16:36:51  joergr
 * Added new method that allows for determining the color model of the
 * decompressed image.
 *
 * Revision 1.5  2009-11-04 09:58:07  uli
 * Switched to logging mechanism provided by the "new" oflog module
 *
 * Revision 1.4  2008-05-29 10:46:13  meichel
 * Implemented new method DcmPixelData::getUncompressedFrame
 *   that permits frame-wise access to compressed and uncompressed
 *   objects without ever loading the complete object into main memory.
 *   For this new method to work with compressed images, all classes derived from
 *   DcmCodec need to implement a new method decodeFrame(). For now, only
 *   dummy implementations returning an error code have been defined.
 *
 * Revision 1.3  2005/12/08 16:28:34  meichel
 * Changed include path schema for all DCMTK header files
 *
 * Revision 1.2  2003/03/21 13:06:46  meichel
 * Minor code purifications for warnings reported by MSVC in Level 4
 *
 * Revision 1.1  2002/06/06 14:52:35  meichel
 * Initial release of the new RLE codec classes
 *   and the dcmcrle/dcmdrle tools in module dcmdata
 *
 *
 */

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