--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmserv/thumbnailengine/ImaamiSrc/DisplayChain.cpp	Tue Feb 02 01:08:46 2010 +0200
@@ -0,0 +1,519 @@
+/*
+* Copyright (c) 2006 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:  
+*        CDisplayChain 
+*		Image processing class implementing
+*		display specific image processing:
+*			- Scaling to display size with pan support
+*			- IETD - display specific color contrast enhancement
+*			- Sharpening 
+*			- Display feature compensation by simple color management
+*			- Dithering 
+*
+*/
+
+
+
+#include <fbs.h>
+#include "DisplayChain.h"
+
+
+/*
+-----------------------------------------------------------------------------
+
+  Constructor
+	
+  Default constructor, initializes member variables to initial values
+	  
+  Return Values:  none
+		
+-----------------------------------------------------------------------------
+*/
+CDisplayChain::CDisplayChain()
+{
+	// This function is intentionally left blank.
+}
+
+
+
+
+/*
+-----------------------------------------------------------------------------
+
+  NewLC
+	
+  Factory function to instantiate the class.
+  This function leaves the class pointer to the cleanup stack
+  May leave with KErrNoMemory if no memory available
+  
+  Return Values:  CDisplayChain* self:  pointer to the class instance
+
+-----------------------------------------------------------------------------
+*/
+CDisplayChain* CDisplayChain::NewLC()
+{
+	CDisplayChain* self = new (ELeave) CDisplayChain();
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	return self;
+}
+
+
+
+
+/*
+-----------------------------------------------------------------------------
+
+  CDCIetd
+  
+  NewL
+	
+  Factory function to instantiate the class.
+  May leave with KErrNoMemory if no memory available
+	  
+  Return Values:  CDisplayChain* self:  pointer to the class instance
+	
+-----------------------------------------------------------------------------
+*/
+CDisplayChain* CDisplayChain::NewL()
+{
+	CDisplayChain* self = CDisplayChain::NewLC();
+	CleanupStack::Pop();
+	return self;
+}
+
+
+
+
+
+/*
+-----------------------------------------------------------------------------
+
+  CDCIetd
+  
+  ConstructL
+	
+  Second phase constructor. Does nothing at the moment
+	  
+  Return Values:  none
+		
+ -----------------------------------------------------------------------------
+*/
+void CDisplayChain::ConstructL()
+{
+	// Create objects for ImaamiImageChain
+	DigitalZoomPtr = CDCDigitalZoom::NewL();
+	CleanupStack::PushL(DigitalZoomPtr);
+
+	SharpeningPtr = DCSharpening::NewL();
+	CleanupStack::PushL(SharpeningPtr);
+
+	DitheringPtr = CDCDithering::NewL();
+	CleanupStack::PushL(DitheringPtr);
+
+	IetdPtr = CDCIetd::NewL();
+	CleanupStack::PushL(IetdPtr);
+
+	ColorManagementPtr = CDCColorManagement::NewL();
+	CleanupStack::PushL(ColorManagementPtr);
+
+
+	TInt i; //Index
+
+	//As default image is just opened to be processed
+	Parameters.FirstOpening = ETrue;
+
+	//Get current processing parameters from processing objects
+	DigitalZoomPtr->GetParameters(&Parameters.DZParameters);
+	IetdPtr->GetParams(&Parameters.IETDParameters);
+	SharpeningPtr->GetParameters(&Parameters.SharpeningParameters);
+	ColorManagementPtr->GetParameters(&Parameters.ColorManagementParameters);
+
+	//Here the parameters can be read for example from a text file or from the registers, etc.
+	//if (!ReadFileL())
+	{			
+		//Set default parameter values
+		//(Defined in DCInit.h)
+		//----------------------------
+		
+		//Set each processing ON/OFF
+		Parameters.DigitalZoomON = DZ;
+		Parameters.DitheringON = DITHER;
+		Parameters.ColorManagementON = ETrue; //CM;
+		Parameters.IetdON = IETD;
+		Parameters.SharpeningON = SHARP;
+		
+		//DigitalZoom
+		DigitalZoomPtr->GetParameters(&Parameters.DZParameters);
+		Parameters.DZParameters.sizeX = DZsizeX;
+		Parameters.DZParameters.sizeY = DZsizeY;
+		Parameters.DZParameters.scaleX = DZscaleX;
+		Parameters.DZParameters.scaleY = DZscaleY;
+		Parameters.DZParameters.allShiftX = DZallX;
+		Parameters.DZParameters.allShiftY = DZallY;
+		Parameters.DZParameters.newShiftX = DZnewX;
+		Parameters.DZParameters.newShiftY = DZnewY;
+		
+		//IETD
+		Parameters.IETDParameters.aStretchLimit = StretchLimit;
+		Parameters.IETDParameters.aBlackPixels = BlackPixels;
+		Parameters.IETDParameters.aWhitePixels = WhitePixels;
+		Parameters.IETDParameters.aSaturationGain = SaturationGain;
+		Parameters.IETDParameters.aBitLimit = BitLimit;
+		Parameters.IETDParameters.aWBC = WBC;
+		Parameters.IETDParameters.aDBC = DBC;
+		
+		//Sharpening
+		Parameters.SharpeningParameters.SHARP_GAIN = SharpGain;
+		Parameters.SharpeningParameters.SHARP_DZONE = SharpDZone;
+		Parameters.SharpeningParameters.SHARP_OVER = SharpOver;
+		
+		//Color Management (fill LUTs and matrix)
+		for(i=0;i<256;i++)
+		{
+			Parameters.ColorManagementParameters.GammaR[i] = CMGammaR[i];
+		}
+		
+		for(i=0;i<256;i++)
+		{
+			Parameters.ColorManagementParameters.GammaG[i] = CMGammaG[i];
+		}
+		
+		for(i=0;i<256;i++)
+		{
+			Parameters.ColorManagementParameters.GammaB[i] = CMGammaB[i];
+		}
+		
+		for(i=0;i<256;i++)
+		{
+			Parameters.ColorManagementParameters.TRCR[i] = CMTRCR[i];
+		}
+		
+		for(i=0;i<256;i++)
+		{
+			Parameters.ColorManagementParameters.TRCG[i] = CMTRCG[i];
+		}
+		
+		for(i=0;i<256;i++)
+		{
+			Parameters.ColorManagementParameters.TRCB[i] = CMTRCB[i];
+		}
+
+		for(i=0;i<9;i++)
+		{
+			Parameters.ColorManagementParameters.Matrix[i] = CMMatrix[i];
+		}
+		
+	}
+
+	//Set the default parameters
+	IetdPtr->SetParams(&Parameters.IETDParameters);
+	SharpeningPtr->SetParameters(&Parameters.SharpeningParameters);
+	ColorManagementPtr->SetParameters(&Parameters.ColorManagementParameters);
+
+	CleanupStack::Pop(5); //Processing objects
+}
+
+
+
+
+/*
+-----------------------------------------------------------------------------
+
+  CDCIetd
+  
+  Destructor
+	
+  Deletes the allocated memory
+	  
+  Return Values:  none
+		
+-----------------------------------------------------------------------------
+*/
+CDisplayChain::~CDisplayChain()
+{
+	//Delete processing objects
+	delete DigitalZoomPtr;
+	delete SharpeningPtr;
+	delete DitheringPtr;
+	delete IetdPtr;
+	delete ColorManagementPtr;
+}
+
+
+
+/*
+-----------------------------------------------------------------------------
+
+  ProcessL
+	
+  Process image referenced by InBitmap (modify aTargetBitmap).
+  If scaling is not used aTargetBitmap is processed directly.
+ 
+  May leave with KErrNoMemory if no memory available
+	  
+  Return Values:  none
+		
+-----------------------------------------------------------------------------
+*/
+void CDisplayChain::ProcessL(const CFbsBitmap* InBitmap, CFbsBitmap* aTargetBitmap)
+{
+
+	//CHECK! pan check needed only when DZ is ON
+	//Scaling
+	if (Parameters.DigitalZoomON)
+	{
+		// refine the zooming parameters based on input data
+		TSize inSize = InBitmap->SizeInPixels();
+		TSize outSize = aTargetBitmap->SizeInPixels();
+		Parameters.DZParameters.sizeX = outSize.iWidth;
+		Parameters.DZParameters.sizeY = outSize.iHeight;
+		Parameters.DZParameters.scaleX = (TReal)outSize.iWidth/(TReal)inSize.iWidth;
+		Parameters.DZParameters.scaleY = (TReal)outSize.iHeight/(TReal)inSize.iHeight;
+
+		//If the image is tried to pan over the image borders, bound to the borders
+		if (Parameters.DZParameters.allShiftX < (-InBitmap->SizeInPixels().iWidth/2 * Parameters.DZParameters.scaleX + aTargetBitmap->SizeInPixels().iWidth/2))
+		{
+			Parameters.DZParameters.allShiftX = (TInt)((-InBitmap->SizeInPixels().iWidth/2)*Parameters.DZParameters.scaleX + aTargetBitmap->SizeInPixels().iWidth/2);
+		}
+		
+		if (Parameters.DZParameters.allShiftX > (InBitmap->SizeInPixels().iWidth/2 * Parameters.DZParameters.scaleX - aTargetBitmap->SizeInPixels().iWidth/2))
+		{
+			Parameters.DZParameters.allShiftX = (TInt)((InBitmap->SizeInPixels().iWidth/2)*Parameters.DZParameters.scaleX - aTargetBitmap->SizeInPixels().iWidth/2);
+		}
+		
+		if (Parameters.DZParameters.allShiftY < (-InBitmap->SizeInPixels().iHeight/2 * Parameters.DZParameters.scaleY + aTargetBitmap->SizeInPixels().iHeight/2))
+		{
+			Parameters.DZParameters.allShiftY = (TInt)((-InBitmap->SizeInPixels().iHeight/2)*Parameters.DZParameters.scaleY + aTargetBitmap->SizeInPixels().iHeight/2);
+		}
+		
+		if (Parameters.DZParameters.allShiftY > (InBitmap->SizeInPixels().iHeight/2 * Parameters.DZParameters.scaleY - aTargetBitmap->SizeInPixels().iHeight/2))
+		{
+			Parameters.DZParameters.allShiftY = (TInt)((InBitmap->SizeInPixels().iHeight/2)*Parameters.DZParameters.scaleY - aTargetBitmap->SizeInPixels().iHeight/2);
+		}
+			
+		DigitalZoomPtr->SetParameters(&Parameters.DZParameters);
+		DigitalZoomPtr->ProcessL(InBitmap, aTargetBitmap);
+	}
+	
+	//IETD 
+	if (Parameters.IetdON)
+	{
+ 		if (Parameters.FirstOpening)
+		{
+			IetdPtr->Analyze(*aTargetBitmap);
+			Parameters.FirstOpening = EFalse;
+		}
+		//Set parameters is needed if default values can change (read from file etc.)
+		//IetdPtr->SetParams(&Parameters.IETDParameters);
+		IetdPtr->ProcessL(*aTargetBitmap);
+	}
+	
+	//Sharpening
+	if (Parameters.SharpeningON)
+	{
+		//Set parameters is needed if default values can change (read from file etc.)
+		//SharpeningPtr->SetParameters(&Parameters.SharpeningParameters);
+		SharpeningPtr->ProcessL(aTargetBitmap);
+	}
+	
+	//ColorManagement
+	if (Parameters.ColorManagementON)
+	{
+		//Set parameters is needed if default values can change (read from file etc.)
+		//ColorManagementPtr->SetParameters(&Parameters.ColorManagementParameters);
+		ColorManagementPtr->ProcessL(aTargetBitmap);
+	}
+
+	//Dithering
+	if (Parameters.DitheringON)
+	{
+		DitheringPtr->ProcessL(*aTargetBitmap);
+	}
+}
+
+
+
+
+/*
+-----------------------------------------------------------------------------
+
+  SetParams
+	
+  Set processing parameters
+	  
+  Return Values:  none
+		
+-----------------------------------------------------------------------------
+*/
+void CDisplayChain::SetParameters(DisplayChainParams* params)
+{
+	//Copy parameter struct
+	Parameters = *params;
+}
+
+
+
+/*
+-----------------------------------------------------------------------------
+
+  GetParams
+	
+  Get current processing parameters
+	  
+  Return Values:  none
+		
+-----------------------------------------------------------------------------
+*/
+void CDisplayChain::GetParameters(DisplayChainParams* params)
+{
+	//Copy parameter struct
+	*params = Parameters;
+}
+
+
+/*
+-----------------------------------------------------------------------------
+
+  ReadFileL
+	
+  Example function for reading processing parameters from file
+	  
+  Return Values:  none
+		
+-----------------------------------------------------------------------------
+TBool CDisplayChain::ReadFileL()
+{
+	
+	FILE *fp;
+	TInt i,j,data;
+	TUint8 data_uchar;
+	TReal data_real;
+	
+	// Open for read (will fail if file does not exist) 
+	if((fp = fopen("e:\\DisplayChain.txt","r"))==NULL )
+	{
+		if((fp = fopen("c:\\DisplayChain.txt","r"))==NULL )
+		{
+			//AfxMessageBox("CMData.txt was not opened");
+			return EFalse;
+		}
+	}
+	
+	//Digital Zoom
+	fscanf(fp,"%d",&data);
+	Parameters.DigitalZoomON = data;
+
+	//Ietd
+	fscanf(fp,"%d",&data);
+	Parameters.IetdON = data;
+	
+	fscanf(fp,"%d",&data_uchar);
+	Parameters.IETDParameters.aWhitePixels = data_uchar;
+	
+	fscanf(fp,"%d",&data_uchar);
+	Parameters.IETDParameters.aBlackPixels = data_uchar;
+	
+	fscanf(fp,"%d",&data_uchar);
+	Parameters.IETDParameters.aStretchLimit = data_uchar;
+	
+	fscanf(fp,"%d",&data_uchar);
+	Parameters.IETDParameters.aSaturationGain = data_uchar;
+
+	fscanf(fp,"%d",&data_uchar);
+	Parameters.IETDParameters.aBitLimit = data_uchar;
+
+	fscanf(fp,"%d",&data_uchar);
+	Parameters.IETDParameters.aWBC = data_uchar;
+
+	fscanf(fp,"%d",&data_uchar);
+	Parameters.IETDParameters.aDBC = data_uchar;
+	
+	//Sharpening
+	fscanf(fp,"%d",&data);
+	Parameters.SharpeningON = data;
+	
+	fscanf(fp,"%d",&data);
+	Parameters.SharpeningParameters.SHARP_OVER = data;
+	
+	fscanf(fp,"%d",&data);
+	Parameters.SharpeningParameters.SHARP_DZONE = data;
+	
+	//fscanf(fp,"%f",&data_real);
+	fscanf(fp,"%d",&data);
+	data_real = ((TReal)data)/65536;
+	Parameters.SharpeningParameters.SHARP_GAIN = data_real;
+
+	//Dithering
+	fscanf(fp,"%d",&data);
+	Parameters.DitheringON = data;
+
+	//ColorManagement
+	fscanf(fp,"%d",&data);
+	Parameters.ColorManagementON = data;
+	
+	for(i=0;i<256;i++)
+	{
+		fscanf(fp,"%d",&data);
+		Parameters.ColorManagementParameters.GammaR[i]=data;
+	}
+	
+	for(i=0;i<256;i++)
+	{
+		fscanf(fp,"%d",&data);
+		Parameters.ColorManagementParameters.GammaG[i]=data;
+	}
+	
+	for(i=0;i<256;i++)
+	{
+		fscanf(fp,"%d",&data);
+		Parameters.ColorManagementParameters.GammaB[i]=data;
+	}
+	
+	for(i=0;i<256;i++)
+	{
+		fscanf(fp,"%d",&data);
+		Parameters.ColorManagementParameters.TRCR[i]=data;
+	}
+	
+	for(i=0;i<256;i++)
+	{
+		fscanf(fp,"%d",&data);
+		Parameters.ColorManagementParameters.TRCG[i]=data;
+	}
+	
+	for(i=0;i<256;i++)
+	{
+		fscanf(fp,"%d",&data);
+		Parameters.ColorManagementParameters.TRCB[i]=data;
+	}
+	
+	
+	for(i=0;i<3;i++)
+	{
+		for(j=0;j<3;j++)
+		{
+			fscanf(fp,"%d",&data);
+			Parameters.ColorManagementParameters.Matrix [3*i+j]=data;
+		}
+	}
+
+	
+	// Close stream 
+	fclose(fp);
+
+	return ETrue;	
+}
+*/
+//----IMAAMI----