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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28 | // GEANT4 tag $Name: $ |
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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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