128 lines
3.6 KiB
C++
128 lines
3.6 KiB
C++
// Copyright (C) 2002-2009 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#ifndef __C_PAK_READER_H_INCLUDED__
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#define __C_PAK_READER_H_INCLUDED__
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#include "IrrCompileConfig.h"
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#ifdef __IRR_COMPILE_WITH_PAK_ARCHIVE_LOADER_
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#include "IReferenceCounted.h"
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#include "IReadFile.h"
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#include "irrArray.h"
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#include "irrString.h"
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#include "IFileSystem.h"
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#include "CFileList.h"
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namespace irr
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{
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namespace io
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{
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//! File header containing location and size of the table of contents
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struct SPAKFileHeader
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{
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// Don't change the order of these fields! They must match the order stored on disk.
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c8 tag[4];
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u32 offset;
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u32 length;
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};
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//! An entry in the PAK file's table of contents.
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struct SPAKFileEntry
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{
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// Don't change the order of these fields! They must match the order stored on disk.
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c8 name[56];
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u32 offset;
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u32 length;
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};
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//! Archiveloader capable of loading PAK Archives
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class CArchiveLoaderPAK : public IArchiveLoader
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{
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public:
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//! Constructor
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CArchiveLoaderPAK(io::IFileSystem* fs);
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//! returns true if the file maybe is able to be loaded by this class
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//! based on the file extension (e.g. ".zip")
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virtual bool isALoadableFileFormat(const io::path& filename) const;
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//! Check if the file might be loaded by this class
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/** Check might look into the file.
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\param file File handle to check.
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\return True if file seems to be loadable. */
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virtual bool isALoadableFileFormat(io::IReadFile* file) const;
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//! Check to see if the loader can create archives of this type.
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/** Check based on the archive type.
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\param fileType The archive type to check.
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\return True if the archile loader supports this type, false if not */
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virtual bool isALoadableFileFormat(E_FILE_ARCHIVE_TYPE fileType) const;
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//! Creates an archive from the filename
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/** \param file File handle to check.
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\return Pointer to newly created archive, or 0 upon error. */
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virtual IFileArchive* createArchive(const io::path& filename, bool ignoreCase, bool ignorePaths) const;
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//! creates/loads an archive from the file.
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//! \return Pointer to the created archive. Returns 0 if loading failed.
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virtual io::IFileArchive* createArchive(io::IReadFile* file, bool ignoreCase, bool ignorePaths) const;
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//! Returns the type of archive created by this loader
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virtual E_FILE_ARCHIVE_TYPE getType() const { return EFAT_PAK; }
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private:
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io::IFileSystem* FileSystem;
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};
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//! reads from pak
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class CPakReader : public virtual IFileArchive, virtual CFileList
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{
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public:
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CPakReader(IReadFile* file, bool ignoreCase, bool ignorePaths);
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virtual ~CPakReader();
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// file archive methods
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//! return the id of the file Archive
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virtual const io::path& getArchiveName() const
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{
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return File->getFileName();
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}
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//! opens a file by file name
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virtual IReadFile* createAndOpenFile(const io::path& filename);
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//! opens a file by index
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virtual IReadFile* createAndOpenFile(u32 index);
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//! returns the list of files
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virtual const IFileList* getFileList() const;
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//! get the class Type
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virtual E_FILE_ARCHIVE_TYPE getType() const { return EFAT_PAK; }
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private:
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//! scans for a local header, returns false if the header is invalid
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bool scanLocalHeader();
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IReadFile* File;
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//! Contains offsets of the files from the start of the archive file
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core::array<u32> Offsets;
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};
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} // end namespace io
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} // end namespace irr
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#endif // __IRR_COMPILE_WITH_PAK_ARCHIVE_LOADER_
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#endif // __C_PAK_READER_H_INCLUDED__
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