OFFIS DCMTK: dcmjpeg/include/dcmtk/dcmjpeg/djeijg8.h Source File

00001 /*
00002  *
00003  *  Copyright (C) 1997-2010, OFFIS e.V.
00004  *  All rights reserved.  See COPYRIGHT file for details.
00005  *
00006  *  This software and supporting documentation were developed by
00007  *
00008  *    OFFIS e.V.
00009  *    R&D Division Health
00010  *    Escherweg 2
00011  *    D-26121 Oldenburg, Germany
00012  *
00013  *
00014  *  Module:  dcmjpeg
00015  *
00016  *  Author:  Norbert Olges, Marco Eichelberg
00017  *
00018  *  Purpose: compression routines of the IJG JPEG library configured for 8 bits/sample. 
00019  *
00020  *  Last Update:      $Author: joergr $
00021  *  Update Date:      $Date: 2010-10-14 13:17:17 $
00022  *  CVS/RCS Revision: $Revision: 1.5 $
00023  *  Status:           $State: Exp $
00024  *
00025  *  CVS/RCS Log at end of file
00026  *
00027  */
00028 
00029 #ifndef DJEIJG8_H
00030 #define DJEIJG8_H
00031 
00032 #include "dcmtk/config/osconfig.h"
00033 #include "dcmtk/ofstd/oflist.h"
00034 #include "dcmtk/dcmjpeg/djencabs.h"
00035 
00036 extern "C"
00037 {
00038   struct jpeg_compress_struct;
00039 }
00040 
00041 class DJCodecParameter;
00042 
00046 class DJCompressIJG8Bit: public DJEncoder
00047 {
00048 public:
00049 
00055   DJCompressIJG8Bit(const DJCodecParameter& cp, EJ_Mode mode, Uint8 quality);
00056 
00062   DJCompressIJG8Bit(const DJCodecParameter& cp, EJ_Mode mode, int prediction, int ptrans);
00063 
00065   virtual ~DJCompressIJG8Bit();
00066 
00079   virtual OFCondition encode(
00080     Uint16 columns,
00081     Uint16 rows,
00082     EP_Interpretation interpr,
00083     Uint16 samplesPerPixel,
00084     Uint16 *image_buffer,
00085     Uint8 *&to,
00086     Uint32 &length);
00087 
00100   virtual OFCondition encode(
00101     Uint16 columns,
00102     Uint16 rows,
00103     EP_Interpretation interpr,
00104     Uint16 samplesPerPixel,
00105     Uint8 *image_buffer,
00106     Uint8 *&to,
00107     Uint32 &length);
00108 
00111   virtual Uint16 bytesPerSample() const { return 1; }
00112 
00115   virtual Uint16 bitsPerSample() const { return 8; }
00116 
00121   void initDestination(jpeg_compress_struct *cinfo);
00122 
00127   int emptyOutputBuffer(jpeg_compress_struct *cinfo);
00128 
00133   void termDestination(jpeg_compress_struct *cinfo);
00134 
00140   virtual void emitMessage(void *arg, int msg_level) const;
00141 
00142 private:
00143 
00145   DJCompressIJG8Bit(const DJCompressIJG8Bit&);
00146 
00148   DJCompressIJG8Bit& operator=(const DJCompressIJG8Bit&);
00149 
00151   void cleanup();
00152 
00154   const DJCodecParameter *cparam;
00155   
00157   Uint8 quality;
00158 
00160   int psv;
00161 
00163   int pt;
00164 
00166   EJ_Mode modeofOperation;
00167 
00169   OFList<unsigned char *> pixelDataList;
00170 
00172   size_t bytesInLastBlock;
00173 
00174 };
00175 
00176 #endif
00177 
00178 /*
00179  * CVS/RCS Log
00180  * $Log: djeijg8.h,v $
00181  * Revision 1.5  2010-10-14 13:17:17  joergr
00182  * Updated copyright header. Added reference to COPYRIGHT file.
00183  *
00184  * Revision 1.4  2009-11-18 16:17:54  uli
00185  * Use more than just the INFO log level.
00186  *
00187  * Revision 1.3  2005-12-08 16:59:27  meichel
00188  * Changed include path schema for all DCMTK header files
00189  *
00190  * Revision 1.2  2001/11/19 15:13:29  meichel
00191  * Introduced verbose mode in module dcmjpeg. If enabled, warning
00192  *   messages from the IJG library are printed on ofConsole, otherwise
00193  *   the library remains quiet.
00194  *
00195  * Revision 1.1  2001/11/13 15:56:24  meichel
00196  * Initial release of module dcmjpeg
00197  *
00198  *
00199  */