/*
* 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: Handles channel adjustments.
*
*/
// INCLUDE FILES
#include "AknsRlEffectPluginAdjustChannels.h"
#include "AknsRlEffectUtil.h"
// =============== INTERNAL IMPL. OF ADJUST CHANNELS ===========================
/**
* Template implementation of AdjustChannels. 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 Type,TInt X, TInt R, TInt G, TInt B>
class AknsRlEffectAdjustChannels
{
public:
static void Process( const CFbsBitmap& aTarget,
const CFbsBitmap& aSource,
const TInt aRedSource,
const TInt aGreenSource,
const TInt aBlueSource,
const TInt aRedFactor,
const TInt aGreenFactor,
const TInt aBlueFactor,
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;
Type color;
TInt r,g,b;
aTarget.LockHeap( ETrue ); // Lock the global bitmap heap
Type* dataT = reinterpret_cast<Type*>( aTarget.DataAddress() );
Type* dataS = reinterpret_cast<Type*>( aSource.DataAddress() );
for( TInt index = 0; index < pixelCount; ++index )
{
color = *dataS;
// Select channels
if( KAknsRlEffectAdjustChannelsRed == aRedSource )
r = AknsRlRgb<Type,X,R,G,B>::R8(color);
else if( KAknsRlEffectAdjustChannelsGreen == aRedSource )
r = AknsRlRgb<Type,X,R,G,B>::G8(color);
else // Must be blue
r = AknsRlRgb<Type,X,R,G,B>::B8(color);
if( KAknsRlEffectAdjustChannelsRed == aGreenSource )
g = AknsRlRgb<Type,X,R,G,B>::R8(color);
else if( KAknsRlEffectAdjustChannelsGreen == aGreenSource )
g = AknsRlRgb<Type,X,R,G,B>::G8(color);
else // Must be blue
g = AknsRlRgb<Type,X,R,G,B>::B8(color);
if( KAknsRlEffectAdjustChannelsRed == aBlueSource )
b = AknsRlRgb<Type,X,R,G,B>::R8(color);
else if( KAknsRlEffectAdjustChannelsGreen == aBlueSource )
b = AknsRlRgb<Type,X,R,G,B>::G8(color);
else // Must be blue
b = AknsRlRgb<Type,X,R,G,B>::B8(color);
// Scale channels.
// Note: It is assumed that arithmetic shifting is supported
// -> negative values are shifted correctly
r = (aRedFactor * r) >> 8;
g = (aGreenFactor * g) >> 8;
b = (aBlueFactor * b) >> 8;
// Exposure blending.
// Note: It is assumed that arithmetic shifting is supported
// -> negative values are shifted correctly
r = (r * aBlendFactor + (255 - aBlendFactor) * AknsRlRgb<Type,X,R,G,B>::R8(color)) >> 8;
g = (g * aBlendFactor + (255 - aBlendFactor) * AknsRlRgb<Type,X,R,G,B>::G8(color)) >> 8;
b = (b * aBlendFactor + (255 - aBlendFactor) * AknsRlRgb<Type,X,R,G,B>::B8(color)) >> 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<Type,X,R,G,B>::SetRgb8( dataT, TUint8(r), TUint8(g), TUint8(b) );
dataT++;
dataS++;
}
aTarget.UnlockHeap( ETrue ); // Unlock the global bitmap heap
}
}; // End of AknsRlEffectAdjustChannels
// ============================ MEMBER FUNCTIONS ===============================
// -----------------------------------------------------------------------------
// CAknsRlEffectPluginAdjustChannels::CAknsRlEffectPluginAdjustChannels
// C++ default constructor can NOT contain any code, that
// might leave.
// -----------------------------------------------------------------------------
//
CAknsRlEffectPluginAdjustChannels::CAknsRlEffectPluginAdjustChannels()
{
}
// -----------------------------------------------------------------------------
// Destructor
// -----------------------------------------------------------------------------
//
CAknsRlEffectPluginAdjustChannels::~CAknsRlEffectPluginAdjustChannels()
{
iContext = NULL;
}
// -----------------------------------------------------------------------------
// CAknsRlEffectPluginAdjustChannels::EffectUid
// -----------------------------------------------------------------------------
//
TUid CAknsRlEffectPluginAdjustChannels::EffectUid() const
{
return TUid::Uid( KAknsRlEffectPluginAdjustChannelsUID );
}
// -----------------------------------------------------------------------------
// CAknsRlEffectPluginAdjustChannels::Effect
// -----------------------------------------------------------------------------
//
MAknsRlEffect* CAknsRlEffectPluginAdjustChannels::Effect( const TInt aInterface )
{
if( aInterface == KAknsRlEffectPluginInterfaceEffect )
return this;
return NULL;
}
// -----------------------------------------------------------------------------
// CAknsRlEffectPluginAdjustChannels::InitializeL
// -----------------------------------------------------------------------------
//
void CAknsRlEffectPluginAdjustChannels::InitializeL()
{
iContext = NULL;
}
// -----------------------------------------------------------------------------
// CAknsRlEffectPluginAdjustChannels::Release
// -----------------------------------------------------------------------------
//
void CAknsRlEffectPluginAdjustChannels::Release()
{
}
// -----------------------------------------------------------------------------
// CAknsRlEffectPluginAdjustChannels::ActivateL
// -----------------------------------------------------------------------------
//
void CAknsRlEffectPluginAdjustChannels::ActivateL( MAknsRlEffectContext* aContext )
{
if( !aContext ) // We absolutely need the context
{
User::Leave( KErrArgument );
}
iContext = aContext;
iSourceRed = KAknsRlEffectAdjustChannelsRed;
iSourceGreen = KAknsRlEffectAdjustChannelsGreen;
iSourceBlue = KAknsRlEffectAdjustChannelsBlue;
iFactorRed = 255;
iFactorGreen = 255;
iFactorBlue = 255;
iBlendFactor = 255;
}
// -----------------------------------------------------------------------------
// CAknsRlEffectPluginAdjustChannels::Deactivate
// -----------------------------------------------------------------------------
//
void CAknsRlEffectPluginAdjustChannels::Deactivate()
{
}
// -----------------------------------------------------------------------------
// CAknsRlEffectPluginAdjustChannels::SetParametersL
// -----------------------------------------------------------------------------
//
void CAknsRlEffectPluginAdjustChannels::SetParametersL( MAknsRlParameterIterator& aParameters )
{
// Iterate over available parameters
while( aParameters.HasNext() )
{
const TAknsRlParameterData* param = aParameters.NextL();
// Fetch channel source values
if( param->iName->Compare( KAknsRlEffectAdjustChannelsSourceRed ) == 0 )
{
if( param->iType != EAknsRlParameterTypeNumber )
User::Leave( KErrArgument );
if( param->iNumber < KAknsRlEffectAdjustChannelsRed ||
param->iNumber > KAknsRlEffectAdjustChannelsBlue )
User::Leave( KErrArgument );
iSourceRed = TUint8( param->iNumber );
}
else if( param->iName->Compare( KAknsRlEffectAdjustChannelsSourceGreen ) == 0 )
{
if( param->iType != EAknsRlParameterTypeNumber )
User::Leave( KErrArgument );
if( param->iNumber < KAknsRlEffectAdjustChannelsRed ||
param->iNumber > KAknsRlEffectAdjustChannelsBlue )
User::Leave( KErrArgument );
iSourceGreen = TUint8( param->iNumber );
}
else if( param->iName->Compare( KAknsRlEffectAdjustChannelsSourceBlue ) == 0 )
{
if( param->iType != EAknsRlParameterTypeNumber )
User::Leave( KErrArgument );
if( param->iNumber < KAknsRlEffectAdjustChannelsRed ||
param->iNumber > KAknsRlEffectAdjustChannelsBlue )
User::Leave( KErrArgument );
iSourceBlue = TUint8( param->iNumber );
}
// Fetch channel factors
else if( param->iName->Compare( KAknsRlEffectAdjustChannelsFactorRed ) == 0 )
{
if( param->iType != EAknsRlParameterTypeNumber )
User::Leave( KErrArgument );
iFactorRed = param->iNumber;
}
else if( param->iName->Compare( KAknsRlEffectAdjustChannelsFactorGreen ) == 0 )
{
if( param->iType != EAknsRlParameterTypeNumber )
User::Leave( KErrArgument );
iFactorGreen = param->iNumber;
}
else if( param->iName->Compare( KAknsRlEffectAdjustChannelsFactorBlue ) == 0 )
{
if( param->iType != EAknsRlParameterTypeNumber )
User::Leave( KErrArgument );
iFactorBlue = param->iNumber;
}
// Fetch blend value
else if( param->iName->Compare( KAknsRlEffectAdjustChannelsBlendFactor ) == 0 )
{
if( param->iType != EAknsRlParameterTypeNumber )
User::Leave( KErrArgument );
iBlendFactor = param->iNumber;
}
}
}
// -----------------------------------------------------------------------------
// CAknsRlEffectPluginAdjustChannels::GetCapabilities
// -----------------------------------------------------------------------------
//
void CAknsRlEffectPluginAdjustChannels::GetCapabilities( TAknsRlEffectCaps& aCaps )
{
aCaps.iOutputLayerSupport = KAknsRlLayerRGBOnly;
aCaps.iInputLayerASupport = KAknsRlLayerRGBOnly;
aCaps.iInputLayerBSupport = KAknsRlLayerNone;
}
// -----------------------------------------------------------------------------
// CAknsRlEffectPluginAdjustChannels::Render
// -----------------------------------------------------------------------------
//
TInt CAknsRlEffectPluginAdjustChannels::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();
// Process the layers
if( EColor64K == modeT && EColor64K == modeS )
{
AknsRlEffectAdjustChannels<TUint16,0,5,6,5>::Process(
*dataTarget.iRGBBitmap,
*dataSource.iRGBBitmap,
iSourceRed,
iSourceGreen,
iSourceBlue,
iFactorRed,
iFactorGreen,
iFactorBlue,
iBlendFactor );
}
else if( EColor16MU == modeT && EColor16MU == modeS )
{
AknsRlEffectAdjustChannels<TUint32,8,8,8,8>::Process(
*dataTarget.iRGBBitmap,
*dataSource.iRGBBitmap,
iSourceRed,
iSourceGreen,
iSourceBlue,
iFactorRed,
iFactorGreen,
iFactorBlue,
iBlendFactor );
}
else
{
// Provided layers have illegal display mode combination
return KErrArgument;
}
}
else
{
// Required layers were not provided
return KErrArgument;
}
return KErrNone;
}
// End of File