Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/visualization/RayTracer/include/private/G4RTJpegCoder.hh

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  1 //
  2 // ********************************************************************
  3 // * License and Disclaimer                                           *
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 25 //
 26 //
 27 //
 28 //
 29 
 30 // class description:
 31 //
 32 //  This class converts 8 bit unsighned ints array to JPEG code.
 33 //
 34 
 35 #ifndef G4RTJpegCoder_H
 36 #define G4RTJpegCoder_H 1
 37 #include "G4RTJpeg.hh"
 38 
 39 //HuffmanTable
 40 struct
 41 G4HuffmanCodeTable
 42 {
 43         int     numOfElement;
 44         int*    SizeT;
 45         int*    CodeT;
 46 };
 47 
 48 class G4OutBitStream;
 49 
 50 class G4JpegCoder
 51 {
 52   public:
 53     G4JpegCoder(u_char* colorR,u_char* colorG,u_char* colorB);
 54     ~G4JpegCoder(void);
 55 
 56     void GetJpegData(char** aJpegData,int& size);
 57 
 58     void SetJpegProperty(const G4JpegProperty& aProperty);
 59 
 60     int DoCoding(void);
 61 
 62 
 63   protected:
 64         u_char* mRgb[3];
 65         int mYBlock[4][64];
 66         int mCbBlock[64];
 67         int mCrBlock[64];
 68         double mCosT[8][8];
 69         int mDCTData[64];
 70         int mPreDC[3];
 71 
 72         G4JpegProperty mProperty;
 73         int mNumVUnits;
 74         int mNumHUnits;
 75 
 76         G4OutBitStream *mOBSP;
 77 
 78         void CodeMCU();
 79 
 80         void makeYCC(int ux,int uy);
 81 
 82         void CodeHuffman(int cs);
 83 
 84         void ForwardDCT(int* picData);
 85 
 86         void Quantization(int cs);
 87 
 88         void WriteHeader(void);
 89         void WriteEOI(void);
 90 };
 91 
 92 const u_int JFIFLength = 16;
 93 const u_int JFIFVersion = 0x0102;     //JFIF Ver 1.02
 94 const u_char YSampleF = 0x22;
 95 const u_char CSampleF = 0x11;
 96 
 97 #endif
 98