--- a/e32tools/e32lib/e32image/deflate/inflate.cpp	Thu Nov 04 09:07:09 2010 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,169 +0,0 @@
-// Copyright (c) 1998-2009 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:
-// e32tools\petran\Szip\inflate.cpp
-// 
-//
-
-#include "deflate.h"
-#include "panic.h"
-#include "h_utl.h"
-
-// Class RInflater
-//
-// The inflation algorithm, complete with huffman decoding
-
-inline CInflater::CInflater(TBitInput& aInput)
-	:iBits(&aInput),iEncoding(0),iOut(0)
-	{}
-
-void CInflater::ConstructL()
-	{
-	iEncoding=new TEncoding;
-	if(iEncoding==NULL)
-		Panic(EHuffmanOutOfMemory);
-	InitL();
-	iLen=0;
-	iOut=new TUint8[KDeflateMaxDistance];
-	if(iOut==NULL)
-		Panic(EHuffmanOutOfMemory);
-
-	iAvail=iLimit=iOut;
-	}
-
-CInflater* CInflater::NewLC(TBitInput& aInput)
-	{
-	CInflater* self=new CInflater(aInput);
-	if(self==NULL)
-		Panic(EHuffmanOutOfMemory);
-	self->ConstructL();
-	return self;
-	}
-
-CInflater::~CInflater()
-	{
-	delete iEncoding;
-	delete [] iOut;
-	}
-
-TInt CInflater::ReadL(TUint8* aBuffer,TInt aLength)
-	{
-	TInt tfr=0;
-	for (;;)
-		{
-		TInt len=Min(aLength,iLimit-iAvail);
-		if (len && aBuffer)
-			{
-			HMem::Copy(aBuffer,iAvail,len);
-			aBuffer+=len;
-			}
-		aLength-=len;
-		iAvail+=len;
-		tfr+=len;
-		if (aLength==0)
-			return tfr;
-		len=InflateL();
-		if (len==0)
-			return tfr;
-		iAvail=iOut;
-		iLimit=iAvail+len;
-		}
-	}
-
-TInt CInflater::SkipL(TInt aLength)
-	{
-	return ReadL(0,aLength);
-	}
-
-void CInflater::InitL()
-	{
-// read the encoding
-	Huffman::InternalizeL(*iBits,iEncoding->iLitLen,KDeflationCodes);
-// validate the encoding
-	if (!Huffman::IsValid(iEncoding->iLitLen,TEncoding::ELitLens) ||
-		!Huffman::IsValid(iEncoding->iDistance,TEncoding::EDistances))
-		Panic(EHuffmanCorruptFile);
-// convert the length tables into huffman decoding trees
-	Huffman::Decoding(iEncoding->iLitLen,TEncoding::ELitLens,iEncoding->iLitLen);
-	Huffman::Decoding(iEncoding->iDistance,TEncoding::EDistances,iEncoding->iDistance,KDeflateDistCodeBase);
-	}
-
-TInt CInflater::InflateL()
-//
-// consume all data lag in the history buffer, then decode to fill up the output buffer
-// return the number of available bytes in the output buffer. This is only ever less than
-// the buffer size if the end of stream marker has been read
-//
-	{
-// empty the history buffer into the output
-	TUint8* out=iOut;
-	TUint8* const end=out+KDeflateMaxDistance;
-	const TUint32* tree=iEncoding->iLitLen;
-	if (iLen<0)	// EOF
-		return 0;
-	if (iLen>0)
-		goto useHistory;
-//
-	while (out<end)
-		{
-		// get a huffman code
-		{
-		TInt val=iBits->HuffmanL(tree)-TEncoding::ELiterals;
-		if (val<0)
-			{
-			*out++=TUint8(val);
-			continue;			// another literal/length combo
-			}
-		if (val==TEncoding::EEos-TEncoding::ELiterals)
-			{	// eos marker. we're done
-			iLen=-1;
-			break;
-			}
-		// get the extra bits for the code
-		TInt code=val&0xff;
-		if (code>=8)
-			{	// xtra bits
-			TInt xtra=(code>>2)-1;
-			code-=xtra<<2;
-			code<<=xtra;
-			code|=iBits->ReadL(xtra);
-			}
-		if (val<KDeflateDistCodeBase-TEncoding::ELiterals)
-			{	// length code... get the code
-			iLen=code+KDeflateMinLength;
-			tree=iEncoding->iDistance;
-			continue;			// read the huffman code
-			}
-		// distance code
-		iRptr=out-(code+1);
-		if (iRptr+KDeflateMaxDistance<end)
-			iRptr+=KDeflateMaxDistance;
-		}
-useHistory:
-		TInt tfr=Min(end-out,iLen);
-		iLen-=tfr;
-		const TUint8* from=iRptr;
-		do
-			{
-			*out++=*from++;
-			if (from==end)
-				from-=KDeflateMaxDistance;
-			} while (--tfr!=0);
-		iRptr=from;
-		tree=iEncoding->iLitLen;
-		};
-	return out-iOut;
-	}
-
-
-