imageeditorengine/filters/FilterBuffer/src/CFilterBuffer.cpp
changeset 1 edfc90759b9f
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0:57d4cdd99204 1:edfc90759b9f
       
     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 #include "CFilterBuffer.h"
       
    21 
       
    22 EXPORT_C TInt CFilterBuffer::Create()
       
    23 	{
       
    24 	CFilterBuffer* ptr = NULL;
       
    25 	TRAPD( error, ptr = NewL(); );
       
    26 	if( error != KErrNone )
       
    27 		{
       
    28 		ptr = NULL;
       
    29 		}
       
    30 	return (TInt)((MImageFilter*)ptr);
       
    31 	}
       
    32 
       
    33 
       
    34 
       
    35 CFilterBuffer* CFilterBuffer::NewL()
       
    36 	{
       
    37 	CFilterBuffer* self = new( ELeave )CFilterBuffer();
       
    38 	CleanupStack::PushL( self );
       
    39 	self->ConstructL();
       
    40 	CleanupStack::Pop( self );
       
    41 	return self;
       
    42 	}
       
    43 
       
    44 
       
    45 
       
    46 CFilterBuffer::~CFilterBuffer()
       
    47 	{
       
    48 	delete iBuffer;
       
    49 	}
       
    50 
       
    51 
       
    52 
       
    53 CFilterBuffer::CFilterBuffer()
       
    54 	{
       
    55 
       
    56 	}
       
    57 
       
    58 
       
    59 
       
    60 void CFilterBuffer::ConstructL()
       
    61 	{
       
    62 
       
    63 	}
       
    64 
       
    65 
       
    66 
       
    67 TRect CFilterBuffer::Rect()
       
    68 	{
       
    69     return iRect;
       
    70 	}
       
    71 
       
    72 TReal CFilterBuffer::Scale()
       
    73 	{
       
    74     return iChild->Scale();
       
    75 	}
       
    76 
       
    77 TSize CFilterBuffer::ViewPortSize()
       
    78 {
       
    79     return iChild->ViewPortSize();
       
    80 }
       
    81 
       
    82 
       
    83 TBlock * CFilterBuffer::GetBlockL ( const TRect & aRect )
       
    84 {
       
    85 
       
    86     if ( !aRect.Intersects(iRect) )
       
    87     {
       
    88         return NULL;
       
    89     }
       
    90 
       
    91     TRect rect = aRect;
       
    92     rect.Intersection(iRect);
       
    93 
       
    94     TBlock * pB = new (ELeave) TBlock (rect);
       
    95 
       
    96     TUint32 * pS = iBuffer + rect.iTl.iY * iSize.iWidth + rect.iTl.iX;
       
    97     TUint32 * pD = pB->iData;
       
    98     
       
    99     for (TInt i = rect.iTl.iY; i < rect.iBr.iY; ++i)
       
   100     {
       
   101         Mem::Copy(pD, pS, pB->iWidth * sizeof(TUint32));
       
   102         pD += pB->iWidth;
       
   103         pS += iSize.iWidth;
       
   104     }
       
   105     return pB;
       
   106 }
       
   107 
       
   108 
       
   109 
       
   110 void CFilterBuffer::SetParent( MImageFilter* aParent )
       
   111 	{
       
   112 	iParent = aParent;
       
   113 	}
       
   114 
       
   115 
       
   116 
       
   117 void CFilterBuffer::SetChild( MImageFilter* aChild )
       
   118 	{
       
   119 	iChild = aChild;
       
   120 	}
       
   121 
       
   122 
       
   123 
       
   124 TInt CFilterBuffer::CmdL( const TDesC16& aCmd )
       
   125 {
       
   126 
       
   127 	TSize oldSize = iSize;
       
   128 
       
   129 	TInt rv = 0;
       
   130 
       
   131 	TLex lex (aCmd);
       
   132 
       
   133 	while ( !lex.Eos() )
       
   134 	{
       
   135 		TPtrC token = lex.NextToken();
       
   136 		
       
   137 		if( token.Compare( _L("width") ) == 0 )
       
   138 		{
       
   139 			lex.Inc();
       
   140 			lex.Val( iSize.iWidth );
       
   141 		}
       
   142 		else if( token.Compare( _L("height") ) == 0 )
       
   143 		{
       
   144 			lex.Inc();
       
   145 			lex.Val( iSize.iHeight );			
       
   146 		}
       
   147 		else if( token.Compare( _L("getbitmap") ) == 0 )
       
   148 		{
       
   149 
       
   150             Mem::FillZ(iBuffer, iSize.iWidth * iSize.iHeight * sizeof(TUint32));
       
   151 
       
   152             TPoint tl (0,0);
       
   153             TPoint br (16,16);
       
   154             
       
   155             while ( tl.iY < iRect.iBr.iY )
       
   156             {
       
   157 
       
   158                 tl.iX = 0;
       
   159                 br.iX = 16;
       
   160 
       
   161                 while ( tl.iX < iRect.iBr.iX )
       
   162                 {
       
   163                     if (br.iX >= iSize.iWidth) br.iX = iSize.iWidth;
       
   164                     if (br.iY >= iSize.iHeight) br.iY = iSize.iHeight;
       
   165 
       
   166                     TBlock * pB = iChild->GetBlockL(TRect (tl,br) );
       
   167                 
       
   168                     if (pB)
       
   169                     {
       
   170                         TUint32 * ps = pB->iData;
       
   171                         TUint32 * pd = iBuffer + tl.iY * iSize.iWidth + tl.iX;
       
   172 
       
   173                         for (TInt i = 0; i < pB->iHeight; ++i )
       
   174                         {
       
   175                             Mem::Copy (pd, ps, pB->iWidth * sizeof (TUint32));
       
   176                             ps += pB->iWidth;
       
   177                             pd += iSize.iWidth;
       
   178                         }
       
   179                         delete pB;
       
   180                         pB = NULL;
       
   181                     }
       
   182                    else
       
   183                     {
       
   184                         TUint32 * pd = iBuffer + tl.iY * iSize.iWidth + tl.iX;
       
   185                         TInt datalength = (br.iX - tl.iX) * sizeof (TUint32);
       
   186                         for (TInt i = tl.iY; i < br.iY; ++i )
       
   187                         {
       
   188                             Mem::FillZ (pd, datalength);
       
   189                             pd += iSize.iWidth;
       
   190                         }
       
   191                     }
       
   192 
       
   193                     tl.iX += 16;
       
   194                     br.iX += 16;
       
   195                 }
       
   196         
       
   197                 tl.iY += 16;
       
   198                 br.iY += 16;
       
   199 
       
   200             }
       
   201 /*
       
   202             CFbsBitmap * bitmap = new (ELeave) CFbsBitmap;
       
   203             CleanupStack::PushL(bitmap);
       
   204             User::LeaveIfError(bitmap->Create(iSize, EColor16M));
       
   205             TBitmapUtil bm (bitmap);
       
   206             bm.Begin(TPoint(0,0));
       
   207             TUint8 * pDOS = (TUint8 *)bitmap->DataAddress();
       
   208             TUint32 * pS = iBuffer;
       
   209             TInt ws = CFbsBitmap::ScanLineLength(iSize.iWidth, EColor16M);
       
   210             for (TInt i = 0; i < iSize.iHeight; ++i)
       
   211             {
       
   212                 TUint8 * pD = pDOS;
       
   213                 pDOS += ws;
       
   214                 for (TInt j = 0; j < iSize.iWidth; ++j)
       
   215                 {
       
   216                     TUint32 c = *pS++;
       
   217                     *pD++ = c & 0xFF;
       
   218                     c >>= 8;
       
   219                     *pD++ = c & 0xFF;
       
   220                     c >>= 8;
       
   221                     *pD++ = c & 0xFF;
       
   222                 }
       
   223             }
       
   224             bm.End();
       
   225             TFileName filename;
       
   226             filename.Copy (_L("c:\\data\\images\\test_"));
       
   227             filename.AppendNum((TInt)iBuffer);
       
   228             filename.Append(_L(".mbm"));
       
   229             bitmap->Save(filename);
       
   230 
       
   231             CleanupStack::PopAndDestroy(); // bitmap
       
   232 */
       
   233 			
       
   234 			rv = (TInt)iBuffer;
       
   235 		}
       
   236 
       
   237 		if( iSize != oldSize )
       
   238 		{
       
   239 			if( iSize.iWidth > 0 && iSize.iHeight > 0 )
       
   240 			{
       
   241 				delete[] iBuffer;
       
   242 				iBuffer = NULL;
       
   243 				iBuffer = new (ELeave) TUint32 [iSize.iWidth * iSize.iHeight];
       
   244 			}
       
   245 			oldSize = iSize;
       
   246 			iRect.iTl.iX = 0;
       
   247 			iRect.iTl.iY = 0;
       
   248 			iRect.iBr.iX = iSize.iWidth;
       
   249 			iRect.iBr.iY = iSize.iHeight;
       
   250 		}
       
   251 
       
   252 
       
   253 	}
       
   254 
       
   255 	return rv;
       
   256 
       
   257 }
       
   258 
       
   259 
       
   260 
       
   261 const char* CFilterBuffer::Type()
       
   262 	{
       
   263 	return "buffer";
       
   264 	}
       
   265 	
       
   266 	
       
   267 #if !defined(EKA2)
       
   268 GLDEF_C TInt E32Dll( TDllReason )
       
   269     {
       
   270     return KErrNone;
       
   271     }	
       
   272 #endif