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

00001 /*
00002  *
00003  *  Copyright (C) 1997-2005, OFFIS
00004  *
00005  *  This software and supporting documentation were developed by
00006  *
00007  *    Kuratorium OFFIS e.V.
00008  *    Healthcare Information and Communication Systems
00009  *    Escherweg 2
00010  *    D-26121 Oldenburg, Germany
00011  *
00012  *  THIS SOFTWARE IS MADE AVAILABLE,  AS IS,  AND OFFIS MAKES NO  WARRANTY
00013  *  REGARDING  THE  SOFTWARE,  ITS  PERFORMANCE,  ITS  MERCHANTABILITY  OR
00014  *  FITNESS FOR ANY PARTICULAR USE, FREEDOM FROM ANY COMPUTER DISEASES  OR
00015  *  ITS CONFORMITY TO ANY SPECIFICATION. THE ENTIRE RISK AS TO QUALITY AND
00016  *  PERFORMANCE OF THE SOFTWARE IS WITH THE USER.
00017  *
00018  *  Module:  dcmjpeg
00019  *
00020  *  Author:  Norbert Olges, Marco Eichelberg
00021  *
00022  *  Purpose: compression routines of the IJG JPEG library configured for 8 bits/sample. 
00023  *
00024  *  Last Update:      $Author: meichel $
00025  *  Update Date:      $Date: 2005/12/08 16:59:27 $
00026  *  Source File:      $Source: /share/dicom/cvs-depot/dcmtk/dcmjpeg/include/dcmtk/dcmjpeg/djeijg8.h,v $
00027  *  CVS/RCS Revision: $Revision: 1.3 $
00028  *  Status:           $State: Exp $
00029  *
00030  *  CVS/RCS Log at end of file
00031  *
00032  */
00033 
00034 #ifndef DJEIJG8_H
00035 #define DJEIJG8_H
00036 
00037 #include "dcmtk/config/osconfig.h"
00038 #include "dcmtk/ofstd/oflist.h"
00039 #include "dcmtk/dcmjpeg/djencabs.h"
00040 
00041 extern "C"
00042 {
00043   struct jpeg_compress_struct;
00044 }
00045 
00046 class DJCodecParameter;
00047 
00051 class DJCompressIJG8Bit: public DJEncoder
00052 {
00053 public:
00054 
00060   DJCompressIJG8Bit(const DJCodecParameter& cp, EJ_Mode mode, Uint8 quality);
00061 
00067   DJCompressIJG8Bit(const DJCodecParameter& cp, EJ_Mode mode, int prediction, int ptrans);
00068 
00070   virtual ~DJCompressIJG8Bit();
00071 
00084   virtual OFCondition encode(
00085     Uint16 columns,
00086     Uint16 rows,
00087     EP_Interpretation interpr,
00088     Uint16 samplesPerPixel,
00089     Uint16 *image_buffer,
00090     Uint8 *&to,
00091     Uint32 &length);
00092 
00105   virtual OFCondition encode(
00106     Uint16 columns,
00107     Uint16 rows,
00108     EP_Interpretation interpr,
00109     Uint16 samplesPerPixel,
00110     Uint8 *image_buffer,
00111     Uint8 *&to,
00112     Uint32 &length);
00113 
00116   virtual Uint16 bytesPerSample() const { return 1; }
00117 
00120   virtual Uint16 bitsPerSample() const { return 8; }
00121 
00126   void initDestination(jpeg_compress_struct *cinfo);
00127 
00132   int emptyOutputBuffer(jpeg_compress_struct *cinfo);
00133 
00138   void termDestination(jpeg_compress_struct *cinfo);
00139     
00144   virtual void outputMessage(void *arg) const;
00145 
00146 private:
00147 
00149   DJCompressIJG8Bit(const DJCompressIJG8Bit&);
00150 
00152   DJCompressIJG8Bit& operator=(const DJCompressIJG8Bit&);
00153 
00155   void cleanup();
00156 
00158   const DJCodecParameter *cparam;
00159   
00161   Uint8 quality;
00162 
00164   int psv;
00165 
00167   int pt;
00168 
00170   EJ_Mode modeofOperation;
00171 
00173   OFList<unsigned char *> pixelDataList;
00174 
00176   size_t bytesInLastBlock;
00177 
00178 };
00179 
00180 #endif
00181 
00182 /*
00183  * CVS/RCS Log
00184  * $Log: djeijg8.h,v $
00185  * Revision 1.3  2005/12/08 16:59:27  meichel
00186  * Changed include path schema for all DCMTK header files
00187  *
00188  * Revision 1.2  2001/11/19 15:13:29  meichel
00189  * Introduced verbose mode in module dcmjpeg. If enabled, warning
00190  *   messages from the IJG library are printed on ofConsole, otherwise
00191  *   the library remains quiet.
00192  *
00193  * Revision 1.1  2001/11/13 15:56:24  meichel
00194  * Initial release of module dcmjpeg
00195  *
00196  *
00197  */