--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/brdbootldr/ubootldr/inflate2.h	Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,171 @@
+// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "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:
+// base\omap_hrp\h4_bootloader\inflate2.h
+// 
+//
+
+
+#include <f32file.h>
+
+#ifndef __INFLATE2_H__ 
+#define __INFLATE2_H__
+
+#define __CONFIGURABLE_F32_LOADER_INFLATE_WINDOW_SIZE__ 0x8000
+
+// inflate
+const TInt KInflateWindowSize=__CONFIGURABLE_F32_LOADER_INFLATE_WINDOW_SIZE__ ;
+
+
+typedef struct
+	{
+	TUint				iPhysicalSector;
+	TUint				iSemiPhysicalSector;	
+	} TNandReadInfo;
+
+//for asm mem copy
+//#define __JUMP(cc,r) asm("mov"#cc " pc, "#r )
+//#define __POPRET(rlist) asm("ldmfd sp!, {"##rlist##"pc} ")
+
+void memcpy1(TAny*, const TAny*, TUint);
+void memset1(void *, int, unsigned);
+TInt memcmp1(const TUint8* aTrg, const TUint8* aSrc, TInt aLength);
+
+void leds(TUint32); 
+extern "C" void memdump(TUint32* aAddr, TUint32* aEnd);
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+extern void countout(void);
+extern void charout(TUint8 aChar);
+
+extern void WriteW(TUint32);
+extern void WriteB(TUint8);
+extern void mmuoff(void);
+#ifdef __cplusplus
+}
+#endif
+
+
+
+/** Bit input stream. Good for reading bit streams for packed, compressed or huffman
+	data algorithms.
+*/
+class TBitInput
+	{
+public:
+	TBitInput();
+	TBitInput(const TUint8* aPtr, TInt aLength, TInt aOffset=0);
+	void Set(const TUint8* aPtr, TInt aLength, TInt aOffset=0);
+//
+	TUint ReadL();
+	TUint ReadL(TInt aSize);
+	TUint HuffmanL(const TUint32* aTree);
+private:
+	virtual void UnderflowL();
+private:
+    TInt iCount;
+	TUint iBits;
+	TInt iRemain;
+	const TUint32* volatile iPtr;
+	};
+
+const TInt KHuffTerminate=0x0001;
+const TUint32 KBranch1=sizeof(TUint32)<<16;
+
+
+/** Huffman code toolkit.
+
+	This class builds a huffman encoding from a frequency table and builds
+	a decoding tree from a code-lengths table
+
+	The encoding generated is based on the rule that given two symbols s1 and s2, with 
+	code length l1 and l2, and huffman codes h1 and h2:
+
+		if l1<l2 then h1<h2 when compared lexicographically
+		if l1==l2 and s1<s2 then h1<h2 ditto
+
+	This allows the encoding to be stored compactly as a table of code lengths
+*/
+class Huffman
+	{
+public:
+	enum {KMaxCodeLength=27};
+	enum {KMetaCodes=KMaxCodeLength+1};
+	enum {KMaxCodes=0x8000};
+public:
+	static void Decoding(const TUint32 aHuffman[],TInt aNumCodes,TUint32 aDecodeTree[],TInt aSymbolBase=0);
+	static TBool IsValid(const TUint32 aHuffman[],TInt aNumCodes);
+//
+	static void InternalizeL(TBitInput& aInput,TUint32 aHuffman[],TInt aNumCodes);
+	};
+
+
+// deflation constants
+const TInt KDeflateLengthMag=8;
+const TInt KDeflateDistanceMag=12;
+
+const TInt KDeflateMinLength=3;
+const TInt KDeflateMaxLength=KDeflateMinLength-1 + (1<<KDeflateLengthMag);
+const TInt KDeflateMaxDistance=(1<<KDeflateDistanceMag);
+const TInt KDeflateDistCodeBase=0x200;
+
+
+class TEncoding
+	{
+public:
+	enum {ELiterals=256,ELengths=(KDeflateLengthMag-1)*4,ESpecials=1,EDistances=(KDeflateDistanceMag-1)*4};
+	enum {ELitLens=ELiterals+ELengths+ESpecials};
+	enum {EEos=ELiterals+ELengths};
+public:
+	TUint32 iLitLen[ELitLens];
+	TUint32 iDistance[EDistances];
+	};
+
+const TInt KDeflationCodes=TEncoding::ELitLens+TEncoding::EDistances;
+
+class Inflater
+	{
+public:
+	static TInt Inflate(TBitInput& aBits, TUint8* aBuffer, TInt aSize);
+private:
+	static TInt Init(TBitInput& aBits, TEncoding& aEncoding);
+	static TInt DoInflate(TBitInput& aBits, TEncoding& aEncoding, TUint8* aBuffer, TInt aSize);
+	};
+
+
+class TFileInput : public TBitInput
+	{
+ 	enum {KBufSize=KInflateWindowSize};
+
+public:
+	TFileInput(TInt aBlockLen, TInt aFileSize);
+	void Init(void);
+
+private:
+	void UnderflowL();
+
+private:
+	TUint8* iReadBuf;
+	TPtr8   iPtr;
+	TUint8  iBuf1[KBufSize];
+	TInt    iState;
+	TInt    iBlockLen;
+	TInt    iFileSize;
+	TInt    iImageReadProgress;
+	};
+
+
+
+#endif