[834] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // |
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| 27 | // $Id: G4RTJpegCoder.hh,v 1.6 2006/06/29 21:23:15 gunter Exp $ |
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[954] | 28 | // GEANT4 tag $Name: $ |
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[834] | 29 | // |
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| 30 | // |
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| 31 | |
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| 32 | // class description: |
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| 33 | // |
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| 34 | // This class converts 8 bit unsighned ints array to JPEG code. |
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| 35 | // |
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| 36 | |
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| 37 | #ifndef G4RTJpegCoder_H |
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| 38 | #define G4RTJpegCoder_H 1 |
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| 39 | #include "G4RTJpeg.hh" |
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| 40 | |
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| 41 | //HuffmanTable |
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| 42 | struct |
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| 43 | G4HuffmanCodeTable |
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| 44 | { |
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| 45 | int numOfElement; |
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| 46 | int* SizeT; |
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| 47 | int* CodeT; |
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| 48 | }; |
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| 49 | |
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| 50 | class G4OutBitStream; |
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| 51 | |
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| 52 | class G4JpegCoder |
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| 53 | { |
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| 54 | public: |
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| 55 | G4JpegCoder(u_char* colorR,u_char* colorG,u_char* colorB); |
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| 56 | ~G4JpegCoder(void); |
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| 57 | |
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| 58 | void GetJpegData(char** aJpegData,int& size); |
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| 59 | |
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| 60 | void SetJpegProperty(const G4JpegProperty& aProperty); |
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| 61 | |
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| 62 | int DoCoding(void); |
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| 63 | |
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| 64 | |
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| 65 | protected: |
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| 66 | u_char* mRgb[3]; |
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| 67 | int mYBlock[4][64]; |
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| 68 | int mCbBlock[64]; |
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| 69 | int mCrBlock[64]; |
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| 70 | double mCosT[8][8]; |
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| 71 | int mDCTData[64]; |
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| 72 | int mPreDC[3]; |
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| 73 | |
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| 74 | G4JpegProperty mProperty; |
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| 75 | int mNumVUnits; |
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| 76 | int mNumHUnits; |
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| 77 | |
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| 78 | G4OutBitStream *mOBSP; |
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| 79 | |
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| 80 | void CodeMCU(); |
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| 81 | |
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| 82 | void makeYCC(int ux,int uy); |
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| 83 | |
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| 84 | void CodeHuffman(int cs); |
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| 85 | |
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| 86 | void ForwardDCT(int* picData); |
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| 87 | |
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| 88 | void Quantization(int cs); |
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| 89 | |
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| 90 | void WriteHeader(void); |
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| 91 | void WriteEOI(void); |
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| 92 | }; |
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| 93 | |
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| 94 | const u_int JFIFLength = 16; |
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| 95 | const u_int JFIFVersion = 0x0102; //JFIF Ver 1.02 |
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| 96 | const u_char YSampleF = 0x22; |
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| 97 | const u_char CSampleF = 0x11; |
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| 98 | |
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| 99 | #endif |
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