wiiqt/WiiQt/u8.h

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#ifndef U8_H
#define U8_H
#include "includes.h"
/*order of the names in the imet header
japanese
english
german
french
spanish
italian
dutch
simp_chinese
trad_chinese
korean
*/
struct FEntry
{
union
{
struct
{
unsigned int Type :8;
unsigned int NameOffset :24;
};
unsigned int TypeName;
};
union
{
struct // File Entry
{
unsigned int FileOffset;
unsigned int FileLength;
};
struct // Dir Entry
{
unsigned int ParentOffset;
unsigned int NextOffset;
};
unsigned int entry[ 2 ];
};
};
enum
{
U8_Hdr_none = 0,
U8_Hdr_IMET_app,//basically the same except the app has 0x40 bytes of padding more than the bnr
U8_Hdr_IMET_bnr,
U8_Hdr_IMD5
};
//class to handle U8 archives found in wii games & system files
// handles different header types, lz77 & ash
//! basic usage is to read an existing U8 archive into a qbytearray and pass it to this class through the second constructor or Load()
//! you can also create a brand-spankin-new U8 archive by using the first constructor
//! check IsOk() to see if that it was loaded ok
//! then call Entries() to get a list of everything that is in the archive
//! access the data in that archive with AddEntry(), RemoveEntry(), ReplaceEntry(), RenameEntry(), and GetData()
class U8
{
public:
//creates a U8 object
//if initialize is true, it will call CreateEmptyData() in this U8
//you can also set the header type & imet names, though they dont affect the actual data in the archive
U8( bool initialize = false, int type = U8_Hdr_none, const QStringList &names = QStringList() );
U8( const QByteArray &ba );
//check if the u8 constructor finished successfully
bool IsOK();
void Load( const QByteArray &ba );
//set the variables and create an fst with only a root node
bool CreateEmptyData();
//adds an entry to this U8 with the given path, and type, and if it is a file entry, the given data
//returns the index of the created entry or -1 on error
int AddEntry( const QString &path, int type, const QByteArray &ba = QByteArray() );
//removes an entry, and all its children, from the archive
bool RemoveEntry( const QString &path );
//replace a file in the archive with different data ( only supports files, no directories )
//if autoCompress is true, it will check if the data to be replaced is ASH/LZ77 compressed and make sure the new data is LZ77'd
bool ReplaceEntry( const QString &path, const QByteArray &ba = QByteArray(), bool autoCompress = true );
//remane an entry. this expects a full path of the entry to be named, and newName is only the replacement name ( not the full path )
bool RenameEntry( const QString &path, const QString &newName );
//returns the index of an item in the archive FST, or -1 the item is not present
//it accepts names like "/arc/anim/". parent is the directory to start looking in
int FindEntry( const QString &str, int parent = 0 );
quint32 NextEntryInFolder( quint32 current, quint32 directory );
QString FstName( const FEntry *entry );
QString FstName( quint32 i );
//gets the data for a path inside the archive
//if no path is given, returns the data for the whole archive, starting at the U8 tag
//if onlyPayload is true, it will return the data unLZ77'd ( and without its IMET/IMD5 header for nested U8 archives )
const QByteArray GetData( const QString &str = QString(), bool onlyPayload = false );
//get the size of an entry in the archive
//if no path is given, returns the size for the whole archive, starting at the U8 tag
quint32 GetSize( const QString &str = QString() );
//returns a list of all the entries in the u8 archive
//directories end with "/"
const QStringList Entries();
//check the first 5000 bytes of a file for the u8 tag.
//if necessary, un-LZ77 the data before checking
//this doesnt check anything else in the archive
static bool IsU8( const QByteArray &ba );
//returns the location of the U8 tag in the first 5000 bytes of the given data
static int GetU8Offset( const QByteArray &ba );
//adds the IMD5 header to the given bytearray and returns it ( original data is modified )
static QByteArray AddIMD5( QByteArray ba );
//returns the U8 archive data with an IMD5 header added
//the actual data is not changed
const QByteArray AddIMD5();
//adds the IMET header to the given bytearray and returns it ( original data is modified )
static QByteArray AddIMET( QByteArray ba, const QStringList &names );
//get an IMET header using the given names and sizes
//padding type will add 0, 0x40, or 0x80 bytes of 0s to the beginning
static QByteArray GetIMET( const QStringList &names, int paddingType = U8_Hdr_IMET_app, quint32 iconSize = 0, quint32 bannerSize = 0, quint32 soundSize = 0 );
//returns the U8 archive data with an IMET header added
//the actual archive data is not changed
const QByteArray AddIMET( int paddingType = U8_Hdr_IMET_app );
//ruterns a list of the names as read from the imet header
const QStringList IMETNames();
//set the imet names
//the data in the archive is not changed, but calling AddIMET() on this banner will use the new names
void SetImetNames( const QStringList &names );
//void SetHeaderType( int type );
int GetHeaderType();
//reads from the fst and makes the list of paths
void CreateEntryList();
private:
QByteArray data;//data starting at the U8 tag
QStringList paths;
bool ok;
//if this archive as a whole is lz77 compressed
bool isLz77;
QStringList imetNames;
int headerType;
void ReadHeader( const QByteArray &ba );
//just a pointer to the fst data.
//this pointer needs to be updated any time data is changed
FEntry* fst;
//stored in host endian !
quint32 fstSize;
quint32 rootnode_offset;
quint32 data_offset;
quint32 NameOff;
//a list of the nested u8 archives
QMap<QString, U8>nestedU8s;
};
#endif // U8_H