imageeditorengine/inc/CJpegSave.h
changeset 1 edfc90759b9f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imageeditorengine/inc/CJpegSave.h	Fri Jan 29 13:53:17 2010 +0200
@@ -0,0 +1,99 @@
+/*
+* Copyright (c) 2010 Ixonos Plc.
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - Initial contribution
+*
+* Contributors:
+* Ixonos Plc
+*
+* Description:  
+*
+*/
+
+
+//
+// Jpeg encoder class
+
+
+#ifndef __CJPEGSAVE_H__
+#define __CJPEGSAVE_H__
+
+#include <e32base.h>
+#include <f32file.h>
+
+#include "TBitmapHandle.h"
+#include "MJpegSave.h"
+
+class CFbsBitmap;
+class TSHuffman;
+
+class CJpegSave
+	: public CBase
+	, public MJpegSave
+	{
+	public:
+		static CJpegSave* NewL( RFs* aFs, RFile* aFile );
+		static CJpegSave* NewLC( RFs* aFs, RFile* aFile );
+		~CJpegSave();
+
+	private:
+		CJpegSave( RFs* aFs, RFile* aFile );
+		void ConstructL();
+
+	public: // MJpegSave
+		//void SaveL( const CFbsBitmap* aBitmap, const TDesC16& aFileName );
+		void StartSaveL( const TSize& aSize, TPtr8 aExif, TInt aSaveBufferSize, TInt aQuality );
+		void SaveBlock( const TBitmapHandle& aBitmap );
+		void FinalizeSave();
+		TPtrC8 Finalize();
+
+	private:
+		void WriteHuffman( TInt aValue );
+		void CreateHuffmanL( TSHuffman* aHuffman, const TUint8* aBits, const TUint8* aVal );
+		void WriteBits( TUint32 aValue, TInt aNumBits );
+		TInt WriteDct( TInt* aDct, TSHuffman* aDc, TSHuffman* aAc );
+		void Dct( TInt* aSource, TInt* aTarget );
+		void Rgb2Yuv( TUint32* aRgb, TInt aWidth, TInt* aY, TInt* aU, TInt* aV );
+		void MakeTables( TInt aQuality, TUint8* aY, TUint8* aUV );
+
+		void WriteSaveBuffer( const TUint8* aSrc, TInt aBytes );
+		void WriteSaveBuffer( TUint8 aValue );
+		void WriteSaveBuffer( TUint16 aValue );
+		void FlushSaveBuf();
+
+	private:
+
+		RFs* iFs;
+		RFile* iSaveFile;
+		TInt iSaveBufSize;
+		TUint8* iSaveBuf;
+		TInt iSaveBufPos;
+		TInt iSaveBufBitPos;
+		TUint8 iSaveByte;
+/*
+		TUint8* iBuffer;
+		TInt iBufPos;
+		TInt iBufBitPos;
+*/
+		TSHuffman* iHuffman[ 4 ];
+		TSHuffman* iCurrentHuffman;
+		TUint8* iCurrentQuant;
+
+		TInt iDctMul[ 64 ][ 64 ];
+
+		TInt iDy;
+		TInt iDu;
+		TInt iDv;
+
+		TUint8 iYQuant[ 64 ];
+		TUint8 iUVQuant[ 64 ];
+
+	};
+
+#endif