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// Copyright (C) 2002-2012 Nikolaus Gebhardt
// Copyright (C) 2009-2012 Christian Stehno
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#ifndef __C_NPK_READER_H_INCLUDED__
#define __C_NPK_READER_H_INCLUDED__
#include "IrrCompileConfig.h"
#ifdef __IRR_COMPILE_WITH_NPK_ARCHIVE_LOADER_
#include "IReferenceCounted.h"
#include "IReadFile.h"
#include "irrArray.h"
#include "irrString.h"
#include "IFileSystem.h"
#include "CFileList.h"
namespace irr
{
namespace io
{
namespace
{
//! File header containing location and size of the table of contents
struct SNPKHeader
{
// Don't change the order of these fields! They must match the order stored on disk.
c8 Tag[4];
u32 Length;
u32 Offset;
};
//! An entry in the NPK file's table of contents.
struct SNPKFileEntry
{
core::stringc Name;
u32 Offset;
u32 Length;
};
} // end namespace
//! Archiveloader capable of loading Nebula Device 2 NPK Archives
class CArchiveLoaderNPK : public IArchiveLoader
{
public:
//! Constructor
CArchiveLoaderNPK(io::IFileSystem* fs);
//! returns true if the file maybe is able to be loaded by this class
//! based on the file extension (e.g. ".zip")
virtual bool isALoadableFileFormat(const io::path& filename) const;
//! Check if the file might be loaded by this class
/** Check might look into the file.
\param file File handle to check.
\return True if file seems to be loadable. */
virtual bool isALoadableFileFormat(io::IReadFile* file) const;
//! Check to see if the loader can create archives of this type.
/** Check based on the archive type.
\param fileType The archive type to check.
\return True if the archile loader supports this type, false if not */
virtual bool isALoadableFileFormat(E_FILE_ARCHIVE_TYPE fileType) const;
//! Creates an archive from the filename
/** \param file File handle to check.
\return Pointer to newly created archive, or 0 upon error. */
virtual IFileArchive* createArchive(const io::path& filename, bool ignoreCase, bool ignorePaths) const;
//! creates/loads an archive from the file.
//! \return Pointer to the created archive. Returns 0 if loading failed.
virtual io::IFileArchive* createArchive(io::IReadFile* file, bool ignoreCase, bool ignorePaths) const;
//! Returns the type of archive created by this loader
virtual E_FILE_ARCHIVE_TYPE getType() const { return EFAT_NPK; }
private:
io::IFileSystem* FileSystem;
};
//! reads from NPK
class CNPKReader : public virtual IFileArchive, virtual CFileList
{
public:
CNPKReader(IReadFile* file, bool ignoreCase, bool ignorePaths);
virtual ~CNPKReader();
// file archive methods
//! return the id of the file Archive
virtual const io::path& getArchiveName() const
{
return File->getFileName();
}
//! opens a file by file name
virtual IReadFile* createAndOpenFile(const io::path& filename);
//! opens a file by index
virtual IReadFile* createAndOpenFile(u32 index);
//! returns the list of files
virtual const IFileList* getFileList() const;
//! get the class Type
virtual E_FILE_ARCHIVE_TYPE getType() const { return EFAT_NPK; }
private:
//! scans for a local header, returns false if the header is invalid
bool scanLocalHeader();
void readString(core::stringc& name);
IReadFile* File;
};
} // end namespace io
} // end namespace irr
#endif // __IRR_COMPILE_WITH_NPK_ARCHIVE_LOADER_
#endif // __C_NPK_READER_H_INCLUDED__
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