--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/imageeditorengine/filters/FilterBubble/Src/CFilterBubble.cpp Fri Jan 29 13:53:17 2010 +0200
@@ -0,0 +1,325 @@
+/*
+* 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:
+*
+*/
+
+
+#include "CFilterBubble.h"
+
+#include <e32math.h>
+
+const TInt KScaleBits = 12;
+const TInt KCoordBits = 8;
+
+EXPORT_C TInt CFilterBubble::Create()
+ {
+ CFilterBubble* ptr = NULL;
+ TRAPD( error, ptr = NewL() );
+ if( error != KErrNone )
+ {
+ ptr = NULL;
+ }
+ return (TInt)((MImageFilter*)ptr);
+ }
+
+
+
+CFilterBubble* CFilterBubble::NewL()
+ {
+ CFilterBubble* self = new( ELeave )CFilterBubble();
+ CleanupStack::PushL( self );
+ self->ConstructL();
+ CleanupStack::Pop( self );
+ return self;
+ }
+
+
+
+CFilterBubble::~CFilterBubble()
+ {
+ delete[] iData;
+ }
+
+
+
+CFilterBubble::CFilterBubble()
+ {
+
+ }
+
+
+
+void CFilterBubble::ConstructL()
+ {
+ iScale.iX = 1 << 8;
+ iScale.iY = 0;
+ iZoom = 1000;
+ iAngle = 0;
+ }
+
+
+
+TRect CFilterBubble::Rect()
+ {
+ return iChild->Rect();
+ }
+
+TReal CFilterBubble::Scale()
+ {
+ return iChild->Scale();
+ }
+
+TSize CFilterBubble::ViewPortSize()
+{
+ return iChild->ViewPortSize();
+}
+
+TBlock * CFilterBubble::GetBlockL ( const TRect & aRect )
+{
+ TBlock * pB = iChild->GetBlockL (aRect);
+ if (!pB) return NULL;
+ TUint32 * pD = pB->iData;
+
+ for (TInt i = pB->iRect.iTl.iY; i < pB->iRect.iBr.iY; ++i)
+ {
+ for (TInt j = pB->iRect.iTl.iX; j < pB->iRect.iBr.iX; ++j, ++pD)
+ {
+
+ TUint32 c = *pD;
+
+ TPoint pos = iCorrectPosition + TPoint (j << KCoordBits, i << KCoordBits);
+ TInt x = ( pos.iX * iScale.iX + pos.iY * iScale.iY ) >> ( KScaleBits + KCoordBits );
+ TInt y = ( pos.iY * iScale.iX - pos.iX * iScale.iY ) >> ( KScaleBits + KCoordBits );
+
+ if ( (x >= 0) && (y >= 0) && (x < iSize.iWidth) && (y < iSize.iHeight) )
+ {
+
+ TUint32 c2 = iData[ x + y * iSize.iWidth ];
+ TInt ca = c2 >> 24;
+
+ if ( ca == 255 )
+ {
+ *pD = c2 & 0xffffff;
+ }
+ else
+ {
+ TInt cc1 = (c2 & 0xff00ff) * ca + (c & 0xff00ff) * (255 - ca);
+ TInt cc2 = (c2 & 0xff00) * ca + (c & 0xff00) * (255 - ca);
+ *pD = (( cc1 >> 8) & 0xff00ff) + ((cc2 >> 8) & 0xff00);
+ }
+ }
+ }
+ }
+ return pB;
+}
+
+
+void CFilterBubble::SetParent( MImageFilter* aParent )
+ {
+ iParent = aParent;
+ }
+
+
+
+void CFilterBubble::SetChild( MImageFilter* aChild )
+ {
+ iChild = aChild;
+ }
+
+
+
+TInt CFilterBubble::CmdL( const TDesC16& aCmd )
+ {
+
+ TLex lex( aCmd );
+
+ while( ! lex.Eos() )
+ {
+ TPtrC token = lex.NextToken();
+ if( token.Compare( _L("file") ) == 0 )
+ {
+ TPtrC namec = lex.NextToken();
+ TPtrC name( namec.Ptr()+1, namec.Length()-2 );
+ iFileName.Copy (name);
+ }
+ else if( token.Compare( _L("load") ) == 0 )
+ {
+ LoadImageL();
+ }
+ else if( token.Compare( _L("bubble") ) == 0 )
+ {
+ lex.Inc();
+ lex.Val( iBubble );
+ }
+ else if( token.Compare( _L("mask") ) == 0 )
+ {
+ lex.Inc();
+ lex.Val( iMask );
+ }
+ else if( token.Compare( _L("x") ) == 0 )
+ {
+ TReal relscale = iChild->Scale();
+ TInt param = 0;
+ lex.Inc ();
+ lex.Val (param);
+ iPosition.iX = (TInt)((param / relscale) + 0.5);
+ }
+ else if( token.Compare( _L("y") ) == 0 )
+ {
+ TReal relscale = iChild->Scale();
+ TInt param = 0;
+ lex.Inc ();
+ lex.Val (param);
+ iPosition.iY = (TInt)((param / relscale) + 0.5);
+ }
+ else if( token.Compare( _L("width") ) == 0 )
+ {
+ TReal relscale = iChild->Scale();
+ TInt param = 0;
+ lex.Inc ();
+ lex.Val (param);
+ TInt width = (TInt)((param / relscale) + 0.5);
+ iZoom = (width * 1000) / iSize.iWidth;
+ }
+ else if( token.Compare( _L("height") ) == 0 )
+ {
+ TReal relscale = iChild->Scale();
+ TInt param = 0;
+ lex.Inc ();
+ lex.Val (param);
+ TInt height = (TInt)((param / relscale) + 0.5);
+ iZoom = (height * 1000) / iSize.iHeight;
+ }
+ else if( token.Compare( _L("zoom") ) == 0 )
+ {
+ lex.Inc();
+ lex.Val( iZoom );
+ }
+ else if( token.Compare( _L("angle") ) == 0 )
+ {
+ lex.Inc();
+ lex.Val( iAngle );
+ }
+ }
+
+ TReal relscale = iChild->Scale();
+ TInt scaledx = (TInt)(iPosition.iX * relscale + 0.5);
+ TInt scaledy = (TInt)(iPosition.iY * relscale + 0.5);
+ TInt scaledz = (TInt)(iZoom * relscale + 0.5);
+
+ TReal zoom = 0.001 * scaledz;
+ TReal angle = 0.001 * iAngle;
+ TReal rad = KPi * angle / 180.0;
+ TReal r;
+ TReal res;
+
+ Math::Cos( r, rad );
+ r *= 1 << KScaleBits;
+ //r /= zoom;
+ Math::Round( res, r, 0 );
+ iScale.iX = (TInt)res;
+
+ Math::Sin( r, rad );
+ r *= 1 << KScaleBits;
+ //r /= zoom;
+ Math::Round( res, r, 0 );
+ iScale.iY = (TInt)res;
+
+ // helpers
+ TPoint mid( iSize.iWidth/2, iSize.iHeight/2 );
+ TPoint sca( (TInt)(zoom * iScale.iX), (TInt)(zoom * iScale.iY) );
+ TInt xo = ( mid.iX * sca.iX - mid.iY * sca.iY ) >> ( KScaleBits - KCoordBits );
+ TInt yo = ( mid.iY * sca.iX + mid.iX * sca.iY ) >> ( KScaleBits - KCoordBits );
+
+ //
+ // iCorrectPosition is bubble mid position corrected with
+ // rotation ( otherwise rotation would be around topleft corner )
+ //
+ iCorrectPosition = TPoint( xo,yo ) - TPoint( scaledx << KCoordBits, scaledy << KCoordBits );
+
+ //
+ // with iScale screen coordinates are translated to texture coordinates
+ //
+ iScale.iX = (TInt)(1.0 / zoom * iScale.iX);
+ iScale.iY = (TInt)(1.0 / zoom * iScale.iY);
+
+ return 0;
+ }
+
+
+
+void CFilterBubble::LoadImageL ()
+ {
+
+ // create and load bubble
+ CFbsBitmap * bubble = new (ELeave) CFbsBitmap;
+ CleanupStack::PushL(bubble);
+ User::LeaveIfError ( bubble->Load (iFileName, iBubble) );
+
+ // create and load mask
+ CFbsBitmap * mask = new (ELeave) CFbsBitmap;
+ CleanupStack::PushL(mask);
+ User::LeaveIfError ( mask->Load (iFileName, iMask) );
+
+ // bubble size
+ iSize = bubble->SizeInPixels();
+
+ // create new buffer
+ delete[] iData;
+ iData = new (ELeave) TUint32 [iSize.iWidth * iSize.iHeight];
+
+ // copy bubble data
+ bubble->LockHeapLC();
+
+ TInt wsc = bubble->ScanLineLength (iSize.iWidth, bubble->DisplayMode());
+ TInt wsm = mask->ScanLineLength (iSize.iWidth, mask->DisplayMode());
+ TUint8 * pcos = (TUint8 *)bubble->DataAddress();
+ TUint8 * pmos = (TUint8 *)mask->DataAddress();
+
+ for ( TInt i = 0, k = 0; i < iSize.iHeight; ++i )
+ {
+
+ TUint8 * pc = pcos;
+ pcos += wsc;
+
+ TUint8 * pm = pmos;
+ pmos += wsm;
+
+ for ( TInt j = 0; j < iSize.iWidth; ++j )
+ {
+ iData[k++] = (TUint32)(*pc | (*(pc + 1) << 8) | (*(pc + 2) << 16) | (*pm++ << 24));
+ pc += 3;
+ }
+ }
+
+ CleanupStack::PopAndDestroy(3); // LockHeapLC(), mask, bubble
+
+}
+
+
+
+const char* CFilterBubble::Type()
+ {
+ return "bubble";
+ }
+
+
+#if !defined(EKA2)
+GLDEF_C TInt E32Dll( TDllReason )
+ {
+ return KErrNone;
+ }
+#endif