--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/videoeditorengine/vedengine/GenManip/inc/DCIetd.h Fri Jan 29 14:08:33 2010 +0200
@@ -0,0 +1,122 @@
+/*
+* 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:
+*
+*/
+
+
+//----IMAAMI----
+//*************************************************************************
+//CDCIETD.h
+//
+//Version 2.00
+//
+//Contains:
+// CDCIETD
+// Display specific color contrast enhancement,
+// Image Enhancement for Transflective Displays version 2,
+// IETD 2.
+//
+// The class implements the following image enhancements algorithms:
+// - Histogram guided contrast stretch
+// - Color saturation increase
+//
+// Usage:
+// - First an instance of this class is created by factory functions NewL() or NewLC.
+// - All settings and configurations can be done by calling function SetParams().
+// Current parameters can be checked by calling function GetParams().
+// - Then the The Analyze() function is called with CFbsBitmap as an argumet.
+// This function have to be called at least once before ProcessL().
+// - Then the The ProcessL() function is called with CFbsBitmap as an argumet.
+// The bitmap is handled in place so this function modifies the given bitmap.
+//
+//History:
+// 23.10.2003 version 2.00 created using existing IMAAMI IETD
+//*************************************************************************
+
+#ifndef __DCIetd_H__
+#define __DCIetd_H__
+
+// INCLUDES
+
+#ifndef __E32STD_H__
+#include <e32std.h> // for Fundamental Types
+#endif // __E32STD_H__
+
+#ifndef __E32BASE_H__
+#include <e32base.h> // for CBase
+#endif // __E32BASE_H__
+
+//Default parameters
+#include "DCInit.h"
+
+
+//-------------------
+// CLASS DEFINITIONS
+// CDCIetd - The one and ony class to contain all required methods
+// to implement DCIetd functionality.
+class CDCIetd : public CBase
+ {
+ public:
+
+ //Parameter struct
+ struct DCIetdParameters
+ {
+ TUint8 aWhitePixels; //Percentage of pixels stretched to maximum value
+ TUint8 aBlackPixels; //Percentage of pixels stretched to minimum value
+ TUint8 aStretchLimit; //Narrowest histogram to be stretched to full range
+ TUint8 aSaturationGain; //Saturation increase gain
+ TUint8 aBitLimit; //Minimum number of color values for full gain
+ TUint8 aWBC; //White balance correction limit
+ TUint8 aDBC; //Dark balance correction limit
+ };
+
+ CDCIetd(); // Constructor
+ static CDCIetd* NewL(); // Factory function NewL
+ static CDCIetd* NewLC();// Factory function NewLC
+ ~CDCIetd(); // Destructor
+ void ConstructL(); // Second Phase contructor (may leave)
+
+ // Analyze image referenced by aBPtr
+ void Analyze(CFbsBitmap& aBPtr);
+
+ // Process and store image referenced by aBPtr
+ void ProcessL(CFbsBitmap& aBPtr);
+
+ // Parameter exchange
+ void SetParams(DCIetdParameters* parameters);
+ void GetParams(DCIetdParameters* parameters);
+
+ private:
+
+ void GatherHistograms(const CFbsBitmap& aBPtr); // Construct the R, G, and B Histograms
+ void MakeMappings(); // Calculate the mapping LUTs
+
+ // Limit integer value to byte [0,255]
+ static inline TUint8 Limit255(TInt i) {return (TUint8)(i<0?0:(i>255?255:i));}
+
+ TUint iHistogram[3][256]; // Histogram data
+ TUint8 iMap[3][256]; // Color component mapping funtions
+ HBufC8* iScanLineBuffer; // Scan line buffer
+
+ TUint8 iReducedStretchLimit[3]; //Stretch limits for each component
+
+ DCIetdParameters iParameters; //Parameters
+ };
+
+#endif // __DCIetd_H__
+
+// End of File
+//----IMAAMI----