Subversion Repositories spk

#include "HiP.h"

bool g_bCanceled;

BOOL __stdcall CompressionCallback( DWORD cbDone, DWORD cbTotal )

{

	if ( g_bCanceled )

		return false;

	float percent = ((float)cbDone / (float)cbTotal) * 100;

	return true;

}

//

// Purpose:

//   The root routine to decompress a single file

//

//bool CCompression::DecompressFile( char* szFile, char* szOutFile )

bool DecompressFile( char* szFile, char* szOutFile )

{

	clsFILE     infile, outfile;

	PHipPack    pEngine = NULL;

	//

	// map the input file into memory

	//

	if ( !infile.GetFileHandle( szFile, F_OPENEXISTING_R ) ||

		 !infile.MapFile() )

		return false;

	//

	// analyse the file

	//

	// 0 byte file ?

	if ( infile.GetFSize() == 0 )

		return FALSE; // ERR

	// initialize engine

	pEngine = new HipPack( infile.GetMapPtr(), infile.GetFSize() );

	pEngine->SetCallback( CompressionCallback );

	void*  pOut;

	DWORD  cbOut;

	bool done = (pEngine->PerformDecompression( &pOut, &cbOut )) ? true : false;

	//

	// write the output 2 disk

	//

	if ( !outfile.GetFileHandle( szOutFile, F_CREATENEW ) )

	{

		if ( pEngine )

			delete pEngine;

		return false;

	}

	outfile.Write( pOut, cbOut );

	outfile.Destroy();

	if ( pEngine )

		delete pEngine;

	return done;

}