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1 /* |
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2 * Copyright (c) 2010 Ixonos Plc. |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - Initial contribution |
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11 * |
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12 * Contributors: |
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13 * Ixonos Plc |
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14 * |
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15 * Description: |
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16 * |
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17 */ |
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18 |
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19 |
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20 // |
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21 // Jpeg encoder class |
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22 |
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23 |
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24 #ifndef __CJPEGSAVE_H__ |
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25 #define __CJPEGSAVE_H__ |
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26 |
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27 #include <e32base.h> |
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28 #include <f32file.h> |
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29 |
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30 #include "TBitmapHandle.h" |
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31 #include "MJpegSave.h" |
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32 |
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33 class CFbsBitmap; |
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34 class TSHuffman; |
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35 |
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36 class CJpegSave |
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37 : public CBase |
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38 , public MJpegSave |
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39 { |
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40 public: |
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41 static CJpegSave* NewL( RFs* aFs, RFile* aFile ); |
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42 static CJpegSave* NewLC( RFs* aFs, RFile* aFile ); |
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43 ~CJpegSave(); |
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44 |
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45 private: |
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46 CJpegSave( RFs* aFs, RFile* aFile ); |
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47 void ConstructL(); |
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48 |
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49 public: // MJpegSave |
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50 //void SaveL( const CFbsBitmap* aBitmap, const TDesC16& aFileName ); |
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51 void StartSaveL( const TSize& aSize, TPtr8 aExif, TInt aSaveBufferSize, TInt aQuality ); |
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52 void SaveBlock( const TBitmapHandle& aBitmap ); |
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53 void FinalizeSave(); |
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54 TPtrC8 Finalize(); |
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55 |
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56 private: |
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57 void WriteHuffman( TInt aValue ); |
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58 void CreateHuffmanL( TSHuffman* aHuffman, const TUint8* aBits, const TUint8* aVal ); |
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59 void WriteBits( TUint32 aValue, TInt aNumBits ); |
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60 TInt WriteDct( TInt* aDct, TSHuffman* aDc, TSHuffman* aAc ); |
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61 void Dct( TInt* aSource, TInt* aTarget ); |
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62 void Rgb2Yuv( TUint32* aRgb, TInt aWidth, TInt* aY, TInt* aU, TInt* aV ); |
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63 void MakeTables( TInt aQuality, TUint8* aY, TUint8* aUV ); |
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64 |
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65 void WriteSaveBuffer( const TUint8* aSrc, TInt aBytes ); |
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66 void WriteSaveBuffer( TUint8 aValue ); |
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67 void WriteSaveBuffer( TUint16 aValue ); |
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68 void FlushSaveBuf(); |
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69 |
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70 private: |
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71 |
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72 RFs* iFs; |
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73 RFile* iSaveFile; |
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74 TInt iSaveBufSize; |
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75 TUint8* iSaveBuf; |
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76 TInt iSaveBufPos; |
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77 TInt iSaveBufBitPos; |
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78 TUint8 iSaveByte; |
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79 /* |
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80 TUint8* iBuffer; |
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81 TInt iBufPos; |
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82 TInt iBufBitPos; |
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83 */ |
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84 TSHuffman* iHuffman[ 4 ]; |
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85 TSHuffman* iCurrentHuffman; |
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86 TUint8* iCurrentQuant; |
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87 |
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88 TInt iDctMul[ 64 ][ 64 ]; |
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89 |
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90 TInt iDy; |
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91 TInt iDu; |
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92 TInt iDv; |
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93 |
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94 TUint8 iYQuant[ 64 ]; |
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95 TUint8 iUVQuant[ 64 ]; |
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96 |
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97 }; |
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98 |
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99 #endif |