Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/visualization/RayTracer/include/private/G4RTOutBitStream.hh

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  1 //
  2 // ********************************************************************
  3 // * License and Disclaimer                                           *
  4 // *                                                                  *
  5 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
  6 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
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  8 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
  9 // * include a list of copyright holders.                             *
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 15 // * use.  Please see the license in the file  LICENSE  and URL above *
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 17 // *                                                                  *
 18 // * This  code  implementation is the result of  the  scientific and *
 19 // * technical work of the GEANT4 collaboration.                      *
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 25 //
 26 //
 27 //
 28 //
 29 
 30 // class description:
 31 //
 32 //  This class represents a line of JPEG code. This class must be used exclusively
 33 // by G4RTJpegCoder.
 34 //
 35 
 36 #ifndef G4RTOutBitStream_H
 37 #define G4RTOutBitStream_H 1
 38 #include "G4RTJpeg.hh"
 39 
 40 static const u_char BitFullMaskT[8] = {0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f
 41 , 0xff};
 42 
 43 class G4OutBitStream
 44 {
 45   public:
 46     G4OutBitStream(int size);
 47     ~G4OutBitStream();
 48         void SetBits(int v, int numBits);
 49         void SetByte(u_char dat);
 50         void SetWord(u_int dat);
 51         void CopyByte(const char* src, int n);
 52 
 53         u_char* GetStreamAddress(void){return mHeadOfBuf;};
 54         int GetStreamSize(void){return int(mBuf - mHeadOfBuf);};
 55 
 56 
 57   protected:
 58         u_char* mHeadOfBuf;
 59         u_char* mBuf;
 60         u_char* mEndOfBuf;
 61         int mBitPos;
 62         int mWriteFlag;
 63 
 64         void IncBuf(void);
 65         void FullBit(void);
 66         void Set8Bits(u_char v, int numBits);
 67         void SetFewBits(u_char v, int numBits);
 68         void SetBits2Byte(u_char v, int numBits);
 69 };
 70 
 71 #endif
 72