--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fbs/fontandbitmapserver/inc/BITMAP.H	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,377 @@
+// Copyright (c) 1995-2009 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:
+//
+
+#if !defined(__BITMAP_H__)
+#define __BITMAP_H__
+#if !defined(__E32STD_H__)
+#include <e32std.h>
+#endif
+#if !defined(__F32FILE_H__)
+#include <f32file.h>
+#endif
+#if !defined(__GDI_H__)
+#include <gdi.h>
+#endif
+
+#ifndef SYMBIAN_ENABLE_SPLIT_HEADERS
+#include <graphics/bitmapuid.h>
+#endif
+
+#ifdef _DEBUG
+	#define SYMBIAN_DEBUG_FBS_LOCKHEAP
+#endif
+
+//Forward declarations
+class CChunkPile;
+class TCompressionBookMark;
+class CFbsRasterizer;
+
+/** 
+Defines the types of file compression. 
+@publishedAll
+@released
+*/
+enum TBitmapfileCompression
+	{
+	/** Bitmap file is not compressed. */
+	ENoBitmapCompression,
+	/** File is compressed using run-length encoding compression. */
+	EByteRLECompression,
+	/** File is compressed using twelve bit run-length encoding compression. */
+	ETwelveBitRLECompression,
+	/** File is compressed using sixteen bit run-length encoding compression. */
+	ESixteenBitRLECompression,
+	/** File is compressed using twenty four bit run-length encoding compression. */
+	ETwentyFourBitRLECompression,
+	/** File is compressed using twenty four bit run-length encoding compression from 32-bit bitmap buffer. */
+	EThirtyTwoUBitRLECompression,
+	/** File is compressed using thirty two bit run-length encoding compression from 32-bit bitmap buffer. */
+	EThirtyTwoABitRLECompression,
+	/** File is compressed as a palette plus reduced bit-per-pixel.  Only applicable to bitmaps already loaded in RAM. */
+	EGenericPaletteCompression,
+	/** Extended bitmap. Data format is proprietary to licensee. */
+	EProprietaryCompression,
+	//Insert new enum items here!
+	ERLECompressionLast = 255
+	};
+
+/** 
+Defines the available file compression schemes. 
+@publishedAll
+@released
+*/
+enum TBitmapfileCompressionScheme
+	{
+	/** File is compressed using run-length encoding compression. */
+	ERLECompression,
+	/** File is compressed as a palette plus reduced bit-per-pixel. */
+	EPaletteCompression,
+	/** File is compressed as a palette plus reduced bit-per-pixel, with automatic fallback to RLE if bitmap is not suitable*/
+	EPaletteCompressionWithRLEFallback
+	};
+
+/**
+WARNING: Typedef for internal use ONLY. Compatibility is not guaranteed in future releases.
+@publishedAll
+@released
+ */
+typedef void (*TAssignFunction)(TUint8*& aDestPtr, TUint32 aColor);
+/**
+WARNING: Typedef for internal use ONLY. Compatibility is not guaranteed in future releases.
+@publishedAll
+@released
+ */
+typedef void (*TDecodeFunction)(TUint8* aDataPtr, TUint32* aPalettePtr, TUint8*& aDestPtr, TAssignFunction aAssignFunction);
+
+/** 
+Contains information about the bitmap when streaming bitmaps to stores. 
+@publishedAll
+@released
+*/
+class SEpocBitmapHeader
+	{
+public:
+	inline SEpocBitmapHeader() :
+		iBitmapSize(sizeof(SEpocBitmapHeader)),
+		iStructSize(sizeof(SEpocBitmapHeader)),
+		iSizeInPixels(0, 0),
+		iSizeInTwips(0, 0),
+		iBitsPerPixel(0),
+		iColor(0),
+		iPaletteEntries(0),
+		iCompression(ENoBitmapCompression)
+		{
+		}
+public:
+	/** Defines whether bitmap is colour and if it comprises an alpha channel. */ 
+	enum TColor 
+		{
+		/** Bitmap doesn't comprise color */
+		ENoColor=0, 
+		/** Bitmap comprises color */
+		EColor=1, 
+		/** Bitmap comprises color with alpha channel */
+		EColorAlpha=2, 
+		/** Bitmap comprises pre-multiplied colors with alpha channel */
+		EColorAlphaPM=3,
+		/** Unknown format */
+		EColorUndefined=8
+		};
+public:
+	/** The size of the bitmap data, in bytes. */
+	TInt iBitmapSize;
+	/** The size of the structure in which the bitmap data is stored. */
+	TInt iStructSize;
+	/** The size of the bitmap, in pixels. */
+	TSize iSizeInPixels;
+	/** The size of the bitmap, in twips. */
+	TSize iSizeInTwips;
+	/** The bitmap's number of bits per pixel */
+	TInt iBitsPerPixel;
+	/** Whether or not the bitmap is colour and comprises an alpha value. */
+	TInt iColor;
+	/** The number of entries in the bitmap's palette. */
+	TInt iPaletteEntries;
+	/** The type of compression used to store the bitmap. */
+	TBitmapfileCompression iCompression;
+	};
+
+/**
+WARNING: Class for internal use ONLY.  Compatibility is not guaranteed in future releases.
+
+@publishedAll
+@released 
+ */
+class TLineScanningPosition
+	{
+public:
+	inline TLineScanningPosition(TUint32* aSrcDataPtr);
+public:
+	TUint8* iSrcDataPtr;
+	TInt iCursorPos;
+	HBufC8* iScanLineBuffer;
+	CFbsRasterizer* const iRasterizer;
+	};
+
+class CShiftedFileStore;
+
+/**
+BitGdi bitmap class (pseudo-CXxx class).
+WARNING: Class for internal use ONLY.  Compatibility is not guaranteed in future releases.
+@released
+*/
+class CBitwiseBitmap
+	{
+	friend class CFbTop;
+	friend class CFbClient;
+	friend class CFbsBitmap;
+	friend class CBitmapObject;
+	friend class CFbsBitmapAsyncStreamer;
+	friend class CFbsBackgroundCompression;
+	friend class CleanupDelete<CBitwiseBitmap>;
+public:
+	IMPORT_C TUid Uid() const;
+	IMPORT_C void ExternalizeL(RWriteStream& aStream,const CFbsBitmap& aHandleBitmap) const;
+	IMPORT_C void ExternalizeRectangleL(RWriteStream& aStream,const TRect& aRect,const CFbsBitmap& aHandleBitmap) const;
+	IMPORT_C void InternalizeL(RReadStream& aStream);
+	IMPORT_C static void InternalizeHeaderL(RReadStream& aStream,SEpocBitmapHeader& aHeader);
+	IMPORT_C TSize SizeInPixels() const;
+	IMPORT_C TSize SizeInTwips() const;
+	IMPORT_C TDisplayMode DisplayMode() const;
+	IMPORT_C TInt HorizontalTwipsToPixels(TInt aTwips) const;
+	IMPORT_C TInt VerticalTwipsToPixels(TInt aTwips) const;
+	IMPORT_C TInt HorizontalPixelsToTwips(TInt aPixels) const;
+	IMPORT_C TInt VerticalPixelsToTwips(TInt aPixels) const;
+	IMPORT_C void GetPixel(TRgb& aColor,const TPoint& aPos,TUint32* aBase, CFbsRasterizer* aRasterizer) const;
+	IMPORT_C TInt GetScanLinePtr(TUint32*& aSlptr, TPoint& aPixel,TInt aLength, TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const;
+	IMPORT_C TInt GetScanLinePtr(TUint32*& aSlptr, TInt& aLength, TPoint& aPixel,TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const;
+	IMPORT_C void GetScanLine(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TBool aDither,const TPoint& aDitherOffset,TDisplayMode aDispMode,TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const;
+	IMPORT_C void GetScanLine(TUint32*& aSlptr, TDes8& aBuf,const TPoint& aPixel,TInt aLength,TBool aDither,const TPoint& aDitherOffset,TDisplayMode aDispMode) const;
+	IMPORT_C void GetScanLine(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TBool aDither,const TPoint& aDitherOffset,TDisplayMode aDispMode,TUint32* aBase) const;
+	IMPORT_C void GetVerticalScanLine(TDes8& aBuf,TInt aX,TBool aDither,const TPoint& aDitherOffset,TDisplayMode aDispMode,TUint32* aBase, CFbsRasterizer* aRasterizer) const;
+	IMPORT_C void StretchScanLine(TDes8& aBuf,const TPoint& aPixel,TInt aClipStrchX,TInt aClipStrchLen,TInt aStretchLength,TInt aOrgX,TInt aOrgLen,const TPoint& aDitherOffset,TDisplayMode aDispMode,TUint32* aBase) const;
+	IMPORT_C void StretchScanLine(TDes8& aBuf,const TPoint& aPixel,TInt aClipStrchX,TInt aClipStrchLen,TInt aStretchLength,TInt aOrgX,TInt aOrgLen,const TPoint& aDitherOffset,TDisplayMode aDispMode,TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const;
+	IMPORT_C TUint32* ScanLineAddress(TUint32* aBase,TUint aY) const;
+	IMPORT_C TBool IsMonochrome(TUint32* aBase) const;
+	IMPORT_C TBool IsLargeBitmap() const;
+	IMPORT_C TInt CompressData();
+	IMPORT_C TInt CompressData(TBitmapfileCompressionScheme aScheme);
+	IMPORT_C TInt CheckBackgroundCompressData();
+	IMPORT_C void SetCompressionBookmark(TLineScanningPosition& aLineScanningPosition, TUint32* aBase, const CFbsBitmap* aFbsBitmap);
+	IMPORT_C TInt HardwareBitmapHandle() const;
+	IMPORT_C TBool IsCompressedInRAM() const;
+	IMPORT_C TBool IsCompressed() const;
+	IMPORT_C TInt DataStride() const;
+	IMPORT_C SEpocBitmapHeader Header() const;
+private:
+	IMPORT_C void operator delete(TAny*);
+	void operator delete(TAny*, TAny*) {}     // This function exists only to prevent a compiler warning
+	IMPORT_C CBitwiseBitmap(RHeap* aHeap,CChunkPile* aPile);
+	IMPORT_C ~CBitwiseBitmap();
+	IMPORT_C void Reset();
+	IMPORT_C TInt Construct(const TSize& aSize,TDisplayMode aDispMode,TUid aCreatorUid);
+	IMPORT_C TInt ConstructExtended(const TSize& aSize, TDisplayMode aDispMode, TUid aType, TInt aDataSize);
+	IMPORT_C void ConstructL(RFs& aFs,const TDesC& aFilename,TInt32 aId,TUint aFileOffset);
+	IMPORT_C void ConstructL(RFile& aFile,TInt32 aId,TUint aFileOffset);
+	IMPORT_C void ConstructL(CShiftedFileStore* aFileStore,TStreamId aStreamId);
+	IMPORT_C TInt CopyData(const CBitwiseBitmap& aSourceBitmap);
+private:
+	void GenerateLineFromCompressedTwelveBitData(TUint8* aDestBuffer, const TPoint& aPixel,TInt aLength,TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const;
+	void GenerateLineFromCompressedEightBitData(TUint8* aDestBuffer, const TPoint& aPixel,TInt aLength,TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const;
+	TUint8 GetGrayPixelEx(TInt aX,TUint32* aScanLineAddress) const;
+	TRgb GetRgbPixelEx(TInt aX,TUint32* aScanLineAddress) const;
+	void GetRgbPixelExMany(TInt aX,TUint32* aScanlinePtr,TUint32* aDest,TInt aLength) const;
+    void GetRgbPixelExMany16M(TInt aX,TUint32* aScanlinePtr,TUint8* aDest,TInt aLength) const;
+    void GetRgbPixelExMany16MAP(TInt aX,TUint32* aScanlinePtr,TUint32* aDest,TInt aLength) const;
+	void GetScanLineGray2(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TBool aDither,const TPoint& aDitherOffset,TUint32* aScanlinePtr) const;
+	void GetScanLineGray4(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TBool aDither,const TPoint& aDitherOffset,TUint32* aScanlinePtr) const;
+	void GetScanLineGray16(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TUint32* aScanlinePtr) const;
+	void GetScanLineGray256(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TUint32* aScanlinePtr) const;
+	void GetScanLineColor16(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TUint32* aScanlinePtr) const;
+	void GetScanLineColor256(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TUint32* aScanlinePtr) const;
+	void GetScanLineColor4K(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TUint32* aScanlinePtr) const;
+	void GetScanLineColor64K(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TUint32* aScanlinePtr) const;
+	void GetScanLineColor16M(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TUint32* aScanlinePtr) const;
+	void GetScanLineColor16MU(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TUint32* aScanlinePtr) const;
+	void GetScanLineColorRgb(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TUint32* aScanlinePtr) const;
+	void GetScanLineExBits(TDes8& aBuf,TInt aX,TInt aLength,TUint32* aScanlinePtr) const;
+	void GetScanLineExBytes(TDes8& aBuf,TInt aX,TInt aLength,TUint32* aScanlinePtr) const;
+	void DoExternalizeDataCompressedL(RWriteStream& aStream,TUint8* aData,TInt aSizeInBytes) const;
+	void DoExternalizeByteDataCompressedL(RWriteStream& aStream,TUint8* aData,TInt aSizeInBytes) const;
+	void DoExternalizeTwelveBitDataCompressedL(RWriteStream& aStream,TUint8* aData,TInt aSizeInBytes) const;
+	void DoExternalizeSixteenBitDataCompressedL(RWriteStream& aStream,TUint8* aData,TInt aSizeInBytes) const;
+	void DoExternalizeTwentyFourBitDataCompressedL(RWriteStream& aStream,TUint8* aData,TInt aSizeInBytes) const;
+	void DoExternalizeThirtyTwoUBitDataCompressedL(RWriteStream& aStream,TUint8* aData,TInt aSizeInBytes) const;
+	void DoExternalizeThirtyTwoABitDataCompressedL(RWriteStream& aStream,TUint8* aData,TInt aSizeInBytes) const;
+	TInt SizeOfDataCompressed(TUint8* aData,TInt aSizeInBytes) const;
+	TInt SizeOfByteDataCompressed(TUint8* aData,TInt aSizeInBytes) const;
+	TInt SizeOfTwelveBitDataCompressed(TUint8* aData,TInt aSizeInBytes) const;
+	TInt SizeOfSixteenBitDataCompressed(TUint8* aData,TInt aSizeInBytes) const;
+	TInt SizeOfTwentyFourBitDataCompressed(TUint8* aData,TInt aSizeInBytes) const;
+	TInt SizeOfThirtyTwoUBitDataCompressed(TUint8* aData,TInt aSizeInBytes) const;
+	TInt SizeOfThirtyTwoABitDataCompressed(TUint8* aData,TInt aSizeInBytes) const;
+	TBool TrueColorPointerCompare(TUint8* aColorPointer,TUint8 aComponent1,TUint8 aComponent2,TUint8 aComponent3) const;
+	TBool ColorAlphaPointerCompare(TUint8* aColorPointer,TUint8 aComponent1,TUint8 aComponent2,TUint8 aComponent3,TUint8 aComponent4) const;
+	void DoInternalizeL(RReadStream& aStream,TInt aSrceSize,TUint32* aBase);
+	void DoInternalizeCompressedDataL(RReadStream& aStream,TInt aSrceSize,TUint32* aBase,TBitmapfileCompression aCompression);
+	void DoDecompressByteData(TUint8* aDestBuffer,TInt aDestSize,TUint8* aSrceBuffer,TInt aSrceSize);
+
+	void DoDecompressByteDataAltL(RReadStream& aStream,TInt aSrceSizeInBytes,TUint32* aBase);
+	void DoDecompressTwelveBitData(TUint8* aDestBuffer,TInt aDestSize,TUint8* aSrceBuffer,TInt aSrceSize);
+	void DoDecompressTwelveBitDataAltL(RReadStream& aStream,TInt aSrceSizeInBytes,TUint32* aBase);
+	void DoDecompressSixteenBitData(TUint8* aDestBuffer,TInt aDestSize,TUint8* aSrceBuffer,TInt aSrceSize);
+	void DoDecompressSixteenBitDataAltL(RReadStream& aStream,TInt aSrceSizeInBytes,TUint32* aBase);
+	void DoDecompressTwentyFourBitData(TUint8* aDestBuffer,TInt aDestSize,TUint8* aSrceBuffer,TInt aSrceSize);
+	void DoDecompressTwentyFourBitDataAltL(RReadStream& aStream,TInt aSrceSizeInBytes,TUint32* aBase);
+	void DoDecompressThirtyTwoUBitData(TUint8* aDestBuffer,TInt aDestSize,TUint8* aSrceBuffer,TInt aSrceSize);
+	void DoDecompressThirtyTwoUBitDataAltL(RReadStream& aStream,TInt aSrceSizeInBytes,TUint32* aBase);
+	void DoDecompressThirtyTwoABitData(TUint8* aDestBuffer,TInt aDestSize,TUint8* aSrceBuffer,TInt aSrceSize);
+	void DoDecompressThirtyTwoABitDataAltL(RReadStream& aStream,TInt aSrceSizeInBytes,TUint32* aBase);
+	void DoStretchScanLine(TDes8& aBuf,TInt x,TInt y,TInt aClipStrchX,TInt aClipStrchLen,TInt aStretchLength,TInt aOrgX,TInt aOrgLen,const TPoint& aDitherOffset,TDisplayMode aDispMode,TUint32* aBase,TLineScanningPosition& aLineScanningPosition) const;
+	void DoCompressScanLine(TDes8& aBuf,TInt x,TInt y,TInt aClipStrchX,TInt aClipStrchLen,TInt aStretchLength,TInt aOrgX,TInt aOrgLen,const TPoint& aDitherOffset,TDisplayMode aDispMode,TUint32* aBase,TLineScanningPosition& aLineScanningPosition) const;
+	TUint32 HashTo1bpp(TUint32 aGray256,TBool aOddX,TBool aOddY) const;
+	TUint32 HashTo2bpp(TUint32 aGray256,TInt aDitherIndex) const;
+	TBool IsWordMonochrome(TUint32 aWord) const;
+	TUint32* DataAddress() const;
+	static void WhiteFill(TUint8* aData,TInt aDataSize,TDisplayMode aDispMode);
+	static TInt ByteWidth(TInt aPixelWidth,TDisplayMode aDispMode);
+	static TInt Bpp(TDisplayMode aDispMode);
+	static TInt IsColor(TDisplayMode aDispMode);
+	static TDisplayMode DisplayMode(TInt aBpp,TInt aColor);
+	static TBitmapfileCompression CompressionType(TInt aBpp, TInt aColor);
+	TInt DoGetScanLinePtr(TUint32*& aSlptr, TPoint& aPixel,TInt aLength, TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const;
+	void GenerateLineFromCompressedSixteenBitData(TUint8* aDestBuffer, const TPoint& aPixel,TInt aLength, TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const;
+	TDisplayMode InitialDisplayMode() const;
+	TInt SetDisplayMode(TDisplayMode aDisplayMode, TUint32* aDataAddress);
+	TInt DisplayModeArgCheck(TDisplayMode aDisplayMode, TUint32* aDataAddress) const;
+	void ChangeDisplayMode( TDisplayMode aNewDisplayMode,
+							TInt aScanLineWidthNew,
+							TUint8* aDataAddrNew,
+							TUint32* aDataAddress,
+							TInt aYStart,
+							TInt aYInc,
+							TInt aYEnd);
+	void UpdateBitmapProperties(TDisplayMode aNewDisplayMode);
+	TInt SwapWidthAndHeight(TUint32* aDataAddress);	
+	void GenerateLineFromCompressed24BitData(TUint8* aDestBuffer, const TPoint& aPixel,TInt aLength, TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const;
+	void GenerateLineFromCompressed32UBitData(TUint8* aDestBuffer, const TPoint& aPixel,TInt aLength, TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const;
+	void GenerateLineFromCompressed32ABitData(TUint8* aDestBuffer, const TPoint& aPixel,TInt aLength, TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const;
+	void AdjustXCoord(TInt& aX) const;
+	void GetLineScanPos(TLineScanningPosition& aLineScanPos, 
+						const TCompressionBookMark*& aComprBookMark, 
+						const TUint8* aBase) const;
+	void UpdateBookMark(const TLineScanningPosition& aLineScanPos, 
+						TCompressionBookMark* aComprBookMark, 
+						const TUint8* aBase) const;
+	void GetScanLineColor16MA(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TUint32* aScanlinePtr) const;
+	void GetScanLineColor16MAP(TDes8& aBuf,const TPoint& aPixel,TInt aLength,TUint32* aScanlinePtr) const;
+	TInt PaletteCompress();
+	void GenerateLineFromPaletteCompressedData(TUint8* aDestBuffer, const TPoint& aPixel,TInt aLength, TUint32* aBase, TLineScanningPosition& aLineScanningPosition) const;
+	TUint PaletteBitsPerPixel(TInt aNumColors) const;
+	TUint PaletteBytesPerPixel(TInt aBitsPerPixel) const;
+	void PaletteDecodeAndAssignGeneric(TUint8* aDataPtr, TUint32* aPalettePtr, TUint8*& aDestPtr, TUint aStartPixel, TUint aEndPixel, TUint aCompressedPixelsPerByte, TUint aCompressedBitsPerPixel) const;
+	static void PaletteDecode1PixelPerByte(TUint8* aDataPtr, TUint32* aPalettePtr, TUint8*& aDestPtr, TAssignFunction aAssignFunction);
+	static void PaletteDecode2PixelPerByte(TUint8* aDataPtr, TUint32* aPalettePtr, TUint8*& aDestPtr, TAssignFunction aAssignFunction);
+	static void PaletteDecode4PixelPerByte(TUint8* aDataPtr, TUint32* aPalettePtr, TUint8*& aDestPtr, TAssignFunction aAssignFunction);
+	static void PaletteDecode8PixelPerByte(TUint8* aDataPtr, TUint32* aPalettePtr, TUint8*& aDestPtr, TAssignFunction aAssignFunction);
+	static void PaletteAssign16BitColor(TUint8*& aDestPtr, TUint32 aColor);
+	static void PaletteAssign24BitColor(TUint8*& aDestPtr, TUint32 aColor);
+	static void PaletteAssign32BitColor(TUint8*& aDestPtr, TUint32 aColor);
+	void UpdatePaddingData(TUint32* aData);
+	static void CheckHeaderIsValidL(const SEpocBitmapHeader& aHeader);
+	static TInt CompressedFormatInfo(TDisplayMode aDispMode, TInt& aBytesPerPack, TInt& aBytesPerCompressed);
+	static void BitmapFill32(TUint32* aDestPtr32, TInt aCount, TUint32 aValue32);
+	static inline void BitmapFill16(TUint16* aDestPtr16, TInt aCount, TUint16 aValue16);
+private:
+	struct TExtra
+		{
+#ifdef SYMBIAN_DEBUG_FBS_LOCKHEAP
+		TInt iLockCount; // number of calls to CFbsBitmap::LockHeap() not balanced by calls to CFbsBitmap::UnlockHeap()
+		TThreadId iThreadId; // id of thread that called CFbsBitmap::LockHeap() if any
+#endif
+		TInt64 iSerialNumber; // serial number of bitmap which is unique to the whole FBServ
+		TInt iTouchCount; // number of calls to TouchBitmap()i.e. number of times bitmap has been changed
+		};
+	inline TExtra* Extra() const; // only for bitmaps created in RAM
+private:
+	TUid iUid;
+	struct TSettings
+		{
+		TSettings(TDisplayMode aDisplayMode);
+		void SetDisplayModes(TDisplayMode aDisplayMode);
+		void SetCurrentDisplayMode(TDisplayMode aDisplayMode);
+		TDisplayMode CurrentDisplayMode() const;
+		TDisplayMode InitialDisplayMode() const;
+		inline void SetDirtyBitmap();
+		inline TBool IsDirtyBitmap() const;
+		inline void SetVolatileBitmap();
+		inline TBool IsVolatileBitmap() const;
+		enum
+			{
+			EBitmapFlagDirty = 0x00010000, // set in the old bitmap when a re-allocating operation has created a new bitmap
+			EBitmapFlagVolatile = 0x00020000, // set when DataAddress() has been called but BeginDataAccess() has not
+			};
+		TUint32 iData;
+		} iSettings;
+	RHeap* iHeap;
+	CChunkPile* iPile;
+	TInt iByteWidth;
+	SEpocBitmapHeader iHeader;
+	TInt iSpare;
+	TInt iDataOffset; // offset in bytes from "this" or from base of bitmap chunk, or hardware bitmap handle
+	TBool iIsCompressedInRAM; //flag indicating whether CompressData has been called
+	};
+
+#endif