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// Copyright (C) 2002-2012 Thomas Alten
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#ifndef __C_WAD_READER_H_INCLUDED__
#define __C_WAD_READER_H_INCLUDED__
#include "IrrCompileConfig.h"
#ifdef __IRR_COMPILE_WITH_WAD_ARCHIVE_LOADER_
#include "IReferenceCounted.h"
#include "IReadFile.h"
#include "irrArray.h"
#include "irrString.h"
#include "IFileSystem.h"
#include "CFileList.h"
namespace irr
{
namespace io
{
enum eWADFileTypes
{
WAD_FORMAT_UNKNOWN = 0,
WAD_FORMAT_QUAKE2 = 1,
WAD_FORMAT_HALFLIFE = 2,
WAD_CMP_NONE = 0,
WAD_CMP_LZSS = 1,
WAD_TYP_NONE = 0,
WAD_TYP_LABEL = 1,
WAD_TYP_LUMPY = 64, // 64 + grab command number
WAD_TYP_PALETTE = 64,
WAD_TYP_QTEX = 65,
WAD_TYP_QPIC = 66,
WAD_TYP_SOUND = 67,
WAD_TYP_MIPTEX = 68,
WAD_TYP_MIPTEX_HALFLIFE = 67,
WAD_TYP_FONT = 70,
};
// byte-align structures
#include "irrpack.h"
struct SWADFileHeader
{
c8 tag[4]; // type of WAD format WAD2 = quake2, WAD3 = halflife
u32 numlumps;
u32 infotableofs;
} PACK_STRUCT;
struct SWADFileEntryOriginal
{
u32 filepos;
u32 disksize;
u32 size; // uncompressed
u8 type;
u8 compression;
u8 pad[2];
u8 name[16]; // must be null terminated
} PACK_STRUCT;
// Default alignment
#include "irrunpack.h"
struct SWADFileEntry
{
io::path simpleFileName;
bool operator < (const SWADFileEntry& other) const
{
return simpleFileName < other.simpleFileName;
}
io::path wadFileName;
SWADFileEntryOriginal header;
};
//! Archiveloader capable of loading WAD Archives
class CArchiveLoaderWAD : public IArchiveLoader
{
public:
//! Constructor
CArchiveLoaderWAD(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;
private:
io::IFileSystem* FileSystem;
};
//! reads from WAD
class CWADReader : public IFileArchive, virtual CFileList
{
public:
CWADReader(IReadFile* file, bool ignoreCase, bool ignorePaths);
virtual ~CWADReader();
// file archive methods
//! return the id of the file Archive
virtual const io::path& getArchiveName() const;
//! 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_WAD; }
private:
io::path Type;
//! scans for a local header, returns false if there is no more local file header.
bool scanLocalHeader();
//! splits filename from zip file into useful filenames and paths
void extractFilename(SWADFileEntry* entry);
io::path Base;
io::path MountPoint;
IReadFile* File;
eWADFileTypes WadType;
SWADFileHeader Header;
//core::array<SWADFileEntry> FileInfo;
io::IFileSystem* FileSystem;
};
} // end namespace io
} // end namespace irr
#endif
#endif // #ifdef __IRR_COMPILE_WITH_WAD_ARCHIVE_LOADER_
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