--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imgtools/imglib/e32image/deflate/compress.cpp	Tue Oct 27 16:36:35 2009 +0000
@@ -0,0 +1,128 @@
+/*
+* 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 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: 
+* e32tools\petran\Szip\compress.cpp
+*
+*/
+
+
+#include "deflate.h"
+
+#if defined(__MSVCDOTNET__) || defined(__TOOLS2__)
+#include <fstream>
+#else //__MSVCDOTNET__
+#include <fstream.h>
+#endif //__MSVCDOTNET__
+
+#include <assert.h>
+#include "h_utl.h"
+
+class TFileOutput : public TBitOutput
+	{
+	enum {KBufSize=0x1000};
+public:
+	TFileOutput(ostream& os);
+	void FlushL();
+	TUint32 iDataCount; 
+private:
+	void OverflowL();
+private:
+	ostream& iOutStream;
+	TUint8 iBuf[KBufSize];
+	};
+
+TFileOutput::TFileOutput(ostream& os)
+	:iOutStream(os)
+	{
+	Set(iBuf,KBufSize);
+	}
+
+void TFileOutput::OverflowL()
+//
+// empty the buffer and reset the pointers
+//
+	{
+	FlushL();
+	Set(iBuf,KBufSize);
+	}
+
+void TFileOutput::FlushL()
+//
+// write out the contents of the buffer
+//
+	{
+	TInt len=Ptr()-iBuf;
+	if (len)
+		{
+		iOutStream.write(reinterpret_cast<char *>(iBuf), len); // write extended header
+		iDataCount += len;
+		}
+	}
+
+void DeflateCompress(char *bytes,TInt size,ostream &os)
+	{
+	TFileOutput* output=new TFileOutput(os);
+	output->iDataCount = 0;
+	DeflateL((TUint8*)bytes,size,*output);
+	output->FlushL();
+	delete output;
+	}
+
+TUint32 DeflateCompressCheck(char *bytes,TInt size,ostream &os)
+	{
+	TUint32 r = 0;
+	TFileOutput* output=new TFileOutput(os);
+	output->iDataCount = 0;
+	DeflateL((TUint8*)bytes,size,*output);
+	output->FlushL();
+
+	r = output->iDataCount; // Preserve the compressed count
+	delete output;
+	return r; // Return the compressed size
+	}
+
+class TFileInput : public TBitInput
+	{
+public:
+	TFileInput(unsigned char* source,int size);
+
+private:
+	void UnderflowL();
+private:
+	TUint8* iReadBuf;
+	TInt iSize;
+	};
+
+TFileInput::TFileInput(unsigned char* source,int size)
+	:iReadBuf(source),iSize(size)
+	{
+	Set(source,iSize*8);
+	}
+
+
+void TFileInput::UnderflowL()
+	{
+	Print(ESevereError,"Buffer underflow on deflate\n");
+	}
+
+void InflateUnCompress(unsigned char* source, int sourcesize,unsigned char* dest, int destsize)
+	{
+	TFileInput* input = new TFileInput(source, sourcesize);
+	CInflater* inflater=CInflater::NewLC(*input);
+	inflater->ReadL(dest,destsize);
+	delete inflater;
+	delete input;
+	}
+
+