1 /*

     2 * Copyright (c) 2010 Ixonos Plc.

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - Initial contribution

    11 *

    12 * Contributors:

    13 * Ixonos Plc

    14 *

    15 * Description:  

    16 *

    17 */

    18 

    19 

    20 #ifndef __CFilterCartoon_H__

    21 #define __CFilterCartoon_H__

    22 

    23 #include <e32base.h>

    24 #include "MImageFilter.h"

    25 

    26 typedef RArray<TUint32> RPalette;

    27 

    28 // Class: Octree node

    29 //=============================================================================

    30 class CNode : public CBase

    31 {

    32 

    33 public:

    34 

    35     CNode();

    36     virtual ~CNode();

    37 

    38 public:

    39     /// If ETrue, has no leaves

    40     TBool   iIsLeaf;

    41     /// Number of pixels represented by this leaf

    42     TInt    iPixels;

    43     /// Sum of red components

    44     TInt    iRedSum;

    45     /// Sum of green components

    46     TInt    iGreenSum;

    47     /// Sum of blue components

    48     TInt    iBlueSum;

    49     /// Children

    50     CNode * iChild[8];

    51     /// Next reducible node

    52     CNode * iNext;

    53 };

    54     

    55 // Class: Octree 

    56 //=============================================================================

    57 class COTreeQuant : public CBase 

    58 {

    59 

    60 public:

    61 

    62     COTreeQuant();

    63     virtual ~COTreeQuant();

    64 

    65     void AddColorL (TUint32 aRgb);

    66     TInt GetColorCount() const;

    67     void GetColorTable ();

    68     void ReduceTree ();

    69 

    70 public:

    71 

    72     /// Amount of leaves

    73     TInt        iLeaves;

    74     /// Tree struct

    75     CNode *     iTree;

    76     /// Reducible nodes

    77     CNode *     iReducibleNodes[9];

    78     /// Palette

    79     RPalette    iPalette;

    80     

    81 private:

    82 

    83     void DoAddColorL (CNode ** aNode, TUint32 aRgb, TInt aLevel);

    84     void GetPaletteColors (const CNode & aNode);

    85 

    86 };

    87 

    88 // Class: Cartoon filter

    89 //=============================================================================

    90 class CFilterCartoon

    91 	: public CBase

    92 	, public MImageFilter

    93 	{

    94 	public:

    95 		IMPORT_C static TInt Create();

    96 		virtual ~CFilterCartoon();

    97 	

    98 	public: // MImageFilter

    99 		virtual TRect Rect();

   100         virtual TReal Scale();

   101         virtual TSize ViewPortSize();

   102 		virtual TBlock * GetBlockL ( const TRect & aRect );

   103 		virtual void SetParent ( MImageFilter * aParent );

   104 		virtual void SetChild ( MImageFilter * aChild );

   105 		virtual TInt CmdL( const TDesC16& aCmd );

   106 		virtual const char* Type();

   107 

   108     private:

   109 		static CFilterCartoon* NewL();

   110 		CFilterCartoon();

   111 		void ConstructL();

   112         void CreateOctreePaletteL();

   113 

   114     private: // data     

   115 

   116 		TInt*		i16BitIndLut;

   117 		TUint32*	iRGB;

   118 		TInt		iCount;

   119 	};

   120 

   121 #endif