diff -r 000000000000 -r 05e9090e2422 skins/AknSkins/rlpluginsrc/AknsRlEffectPluginInvert.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/skins/AknSkins/rlpluginsrc/AknsRlEffectPluginInvert.cpp Thu Dec 17 09:14:12 2009 +0200 @@ -0,0 +1,329 @@ +/* +* Copyright (c) 2004-2008 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of "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: +* +* Description: Inverts bitmap channels. +* +*/ + + +// INCLUDE FILES +#include "AknsRlEffectPluginInvert.h" +#include "AknsRlEffectUtil.h" + +// ==================TEMPLATE IMPL. OF INVERT ================================== +/** +* Template implementation of Invert. Type defines the used data type for +* iterating over the bitmap data. X, R, G and B define the used pixel color bit +* layout. +*/ +template +class AknsRlEffectInvert + { + public: + //------------------------------------------------------------------------ + static void Process( const CFbsBitmap& aTarget, + const CFbsBitmap& aSource, + const TUint8 aChannelMask, + const TInt aBlendFactor ) + { + // ScanLineLength returns bytes, but width must match the Type + TInt width = CFbsBitmap::ScanLineLength( aSource.SizeInPixels().iWidth, + aSource.DisplayMode() ) / sizeof(Type); + TInt height = aSource.SizeInPixels().iHeight; + + TInt pixelCount = width * height; + TInt r,g,b; + + aTarget.LockHeap( ETrue ); // Lock the global bitmap heap + Type* dataT = reinterpret_cast( aTarget.DataAddress() ); + Type* dataS = reinterpret_cast( aSource.DataAddress() ); + + for( TInt index = 0; index < pixelCount; ++index ) + { + r = AknsRlRgb::R8(*dataS); + g = AknsRlRgb::G8(*dataS); + b = AknsRlRgb::B8(*dataS); + + if( CAknsRlEffectPluginInvert::EMaskR & aChannelMask ) + r = 255 - r; + if( CAknsRlEffectPluginInvert::EMaskG & aChannelMask ) + g = 255 - g; + if( CAknsRlEffectPluginInvert::EMaskB & aChannelMask ) + b = 255 - b; + + // Exposure blending + // Note: It is assumed that arithmetic shifting is supported + // -> negative values are shifted correctly + r = ( r * aBlendFactor + (255 - aBlendFactor) * AknsRlRgb::R8(*dataS) ) >> 8; + g = ( g * aBlendFactor + (255 - aBlendFactor) * AknsRlRgb::G8(*dataS) ) >> 8; + b = ( b * aBlendFactor + (255 - aBlendFactor) * AknsRlRgb::B8(*dataS) ) >> 8; + + if( r < 0 ) r = 0; else if( r > 255 ) r = 255; + if( g < 0 ) g = 0; else if( g > 255 ) g = 255; + if( b < 0 ) b = 0; else if( b > 255 ) b = 255; + + AknsRlRgb::SetRgb8( dataT, TUint8(r), TUint8(g), TUint8(b) ); + + dataT++; + dataS++; + } + + aTarget.UnlockHeap( ETrue ); // Unlock the global bitmap heap + } + }; + +// ================== GRAYSCALE IMPL. OF INVERT ================================ +class AknsRlEffectInvertGray + { + public: + //------------------------------------------------------------------------ + static void Process( const CFbsBitmap& aTarget, + const CFbsBitmap& aSource, + const TInt aBlendFactor ) + { + TInt width = CFbsBitmap::ScanLineLength( aSource.SizeInPixels().iWidth, + aSource.DisplayMode() ); + TInt height = aSource.SizeInPixels().iHeight; + + TInt pixelCount = width * height; + TInt shade; + + aTarget.LockHeap( ETrue ); // Lock the global bitmap heap + TUint8* dataT = reinterpret_cast( aTarget.DataAddress() ); + TUint8* dataS = reinterpret_cast( aSource.DataAddress() ); + + for( TInt index = 0; index < pixelCount; ++index ) + { + shade = 255 - (*dataS); + + // Exposure blending + // Note: It is assumed that arithmetic shifting is supported + // -> negative values are shifted correctly + shade = ( shade * aBlendFactor + (255 - aBlendFactor) * (*dataS) ) >> 8; //lint !e702 Arithmetic shifting assumed + + if( shade < 0 ) shade = 0; + else if( shade > 255 ) shade = 255; + + *dataT = TUint8(shade); + + dataT++; + dataS++; + } + + aTarget.UnlockHeap( ETrue ); // Unlock the global bitmap heap + } + }; + +// ============================ MEMBER FUNCTIONS =============================== + +// ----------------------------------------------------------------------------- +// CAknsRlEffectPluginInvert::CAknsRlEffectPluginInvert +// C++ default constructor can NOT contain any code, that +// might leave. +// ----------------------------------------------------------------------------- +// +CAknsRlEffectPluginInvert::CAknsRlEffectPluginInvert() + { + } + +// ----------------------------------------------------------------------------- +// Destructor +// ----------------------------------------------------------------------------- +// +CAknsRlEffectPluginInvert::~CAknsRlEffectPluginInvert() + { + iContext = NULL; // Removes lint nag + } + +// ----------------------------------------------------------------------------- +// CAknsRlEffectPluginInvert::EffectUid +// ----------------------------------------------------------------------------- +// +TUid CAknsRlEffectPluginInvert::EffectUid() const + { + return TUid::Uid( KAknsRlEffectPluginInvertUID ); + } + +// ----------------------------------------------------------------------------- +// CAknsRlEffectPluginInvert::Effect +// ----------------------------------------------------------------------------- +// +MAknsRlEffect* CAknsRlEffectPluginInvert::Effect( const TInt aInterface ) + { + if( aInterface == KAknsRlEffectPluginInterfaceEffect ) + return this; + return NULL; + } + +// ----------------------------------------------------------------------------- +// CAknsRlEffectPluginInvert::InitializeL +// ----------------------------------------------------------------------------- +// +void CAknsRlEffectPluginInvert::InitializeL() + { + iContext = NULL; + } + +// ----------------------------------------------------------------------------- +// CAknsRlEffectPluginInvert::Release +// ----------------------------------------------------------------------------- +// +void CAknsRlEffectPluginInvert::Release() + { + } + +// ----------------------------------------------------------------------------- +// CAknsRlEffectPluginInvert::ActivateL +// ----------------------------------------------------------------------------- +// +void CAknsRlEffectPluginInvert::ActivateL( MAknsRlEffectContext* aContext ) + { + if( !aContext ) // We absolutely need the context + { + User::Leave( KErrArgument ); + } + + iContext = aContext; + + iChannelMask = EMaskR | EMaskG | EMaskB; + iBlendFactor = 255; + } + +// ----------------------------------------------------------------------------- +// CAknsRlEffectPluginInvert::Deactivate +// ----------------------------------------------------------------------------- +// +void CAknsRlEffectPluginInvert::Deactivate() + { + } + +// ----------------------------------------------------------------------------- +// CAknsRlEffectPluginInvert::SetParametersL +// ----------------------------------------------------------------------------- +// +void CAknsRlEffectPluginInvert::SetParametersL( MAknsRlParameterIterator& aParameters ) + { + // Iterate over available parameters + while( aParameters.HasNext() ) + { + const TAknsRlParameterData* param = aParameters.NextL(); + + // Fetch channel mask value + if( param->iName->Compare( KAknsRlEffectInvertChannels ) == 0 ) + { + if( param->iType != EAknsRlParameterTypeNumber ) + User::Leave( KErrArgument ); + + iChannelMask = TUint8(param->iNumber); + } + // Fetch blend factor value + else if( param->iName->Compare( KAknsRlEffectInvertBlendFactor ) == 0 ) + { + if( param->iType != EAknsRlParameterTypeNumber ) + User::Leave( KErrArgument ); + + iBlendFactor = param->iNumber; + } + } + } + +// ----------------------------------------------------------------------------- +// CAknsRlEffectPluginInvert::GetCapabilities +// ----------------------------------------------------------------------------- +// +void CAknsRlEffectPluginInvert::GetCapabilities( TAknsRlEffectCaps& aCaps ) + { + aCaps.iOutputLayerSupport = KAknsRlLayerRGBOnly; + aCaps.iInputLayerASupport = KAknsRlLayerRGBOnly; + aCaps.iInputLayerBSupport = KAknsRlLayerNone; + } + +// ----------------------------------------------------------------------------- +// CAknsRlEffectPluginInvert::Render +// ----------------------------------------------------------------------------- +// +TInt CAknsRlEffectPluginInvert::Render( const TAknsRlRenderOpParam& aParam ) + { + if( !iContext ) // We absolutely need the context + { + return KErrBadHandle; + } + + // To do anything we need both, the output layer and input layer + if( ( aParam.iOutputLayerStatus & KAknsRlLayerRGBOnly ) && + ( aParam.iInputLayerAStatus & KAknsRlLayerRGBOnly ) ) + { + // Query the layers, uninitialized because we process the whole image + TAknsRlLayerData dataTarget; + TRAPD( err, iContext->GetLayerDataL( dataTarget, aParam.iOutputLayerIndex, + aParam.iOutputLayerStatus, EFalse ) ); + if( KErrNone != err ) + return KErrArgument; + + TAknsRlLayerData dataSource; + TRAP( err, iContext->GetLayerDataL( dataSource, aParam.iInputLayerAIndex, + aParam.iInputLayerAStatus, EFalse ) ); + if( KErrNone != err ) + return KErrArgument; + + if( !dataTarget.iRGBBitmap ) // We need the target bitmap + return KErrBadHandle; + + if( !dataSource.iRGBBitmap ) // We need the source bitmap + return KErrBadHandle; + + TDisplayMode modeT = dataTarget.iRGBBitmap->DisplayMode(); + TDisplayMode modeS = dataSource.iRGBBitmap->DisplayMode(); + + // Rgb -> Rgb modes + if( EColor64K == modeS && EColor64K == modeT ) + { + AknsRlEffectInvert::Process( + *dataTarget.iRGBBitmap, + *dataSource.iRGBBitmap, + iChannelMask, + iBlendFactor ); + + } + else if( EColor16MU == modeS && EColor16MU == modeT ) + { + AknsRlEffectInvert::Process( + *dataTarget.iRGBBitmap, + *dataSource.iRGBBitmap, + iChannelMask, + iBlendFactor ); + } + // Gray -> Gray mode + else if( EGray256 == modeS && EGray256 == modeT ) + { + AknsRlEffectInvertGray::Process( + *dataTarget.iRGBBitmap, + *dataSource.iRGBBitmap, + iBlendFactor ); + } + else + { + // Provided layers have illegal display mode combination + return KErrArgument; + } + } + else + { + // Required layers were not provided + return KErrArgument; + } + + return KErrNone; + } + +// End of File