81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/**
|
|
* @file romfs.h
|
|
* @brief RomFS driver.
|
|
*/
|
|
#pragma once
|
|
|
|
#include <3ds/types.h>
|
|
|
|
/// RomFS header.
|
|
typedef struct
|
|
{
|
|
u32 headerSize; ///< Size of the header.
|
|
u32 dirHashTableOff; ///< Offset of the directory hash table.
|
|
u32 dirHashTableSize; ///< Size of the directory hash table.
|
|
u32 dirTableOff; ///< Offset of the directory table.
|
|
u32 dirTableSize; ///< Size of the directory table.
|
|
u32 fileHashTableOff; ///< Offset of the file hash table.
|
|
u32 fileHashTableSize; ///< Size of the file hash table.
|
|
u32 fileTableOff; ///< Offset of the file table.
|
|
u32 fileTableSize; ///< Size of the file table.
|
|
u32 fileDataOff; ///< Offset of the file data.
|
|
} romfs_header;
|
|
|
|
/// RomFS directory.
|
|
typedef struct
|
|
{
|
|
u32 parent; ///< Offset of the parent directory.
|
|
u32 sibling; ///< Offset of the next sibling directory.
|
|
u32 childDir; ///< Offset of the first child directory.
|
|
u32 childFile; ///< Offset of the first file.
|
|
u32 nextHash; ///< Directory hash table pointer.
|
|
u32 nameLen; ///< Name length.
|
|
u16 name[]; ///< Name. (UTF-16)
|
|
} romfs_dir;
|
|
|
|
/// RomFS file.
|
|
typedef struct
|
|
{
|
|
u32 parent; ///< Offset of the parent directory.
|
|
u32 sibling; ///< Offset of the next sibling file.
|
|
u64 dataOff; ///< Offset of the file's data.
|
|
u64 dataSize; ///< Length of the file's data.
|
|
u32 nextHash; ///< File hash table pointer.
|
|
u32 nameLen; ///< Name length.
|
|
u16 name[]; ///< Name. (UTF-16)
|
|
} romfs_file;
|
|
|
|
struct romfs_mount;
|
|
|
|
/**
|
|
* @brief Mounts the Application's RomFS.
|
|
* @param mount Output mount handle
|
|
*/
|
|
Result romfsMount(struct romfs_mount **mount);
|
|
static inline Result romfsInit(void)
|
|
{
|
|
return romfsMount(NULL);
|
|
}
|
|
|
|
/**
|
|
* @brief Mounts RomFS from an open file.
|
|
* @param file Handle of the RomFS file.
|
|
* @param offset Offset of the RomFS within the file.
|
|
* @param mount Output mount handle
|
|
*/
|
|
Result romfsMountFromFile(Handle file, u32 offset, struct romfs_mount **mount);
|
|
static inline Result romfsInitFromFile(Handle file, u32 offset)
|
|
{
|
|
return romfsMountFromFile(file, offset, NULL);
|
|
}
|
|
|
|
/// Bind the RomFS mount
|
|
Result romfsBind(struct romfs_mount *mount);
|
|
|
|
/// Unmounts the RomFS device.
|
|
Result romfsUnmount(struct romfs_mount *mount);
|
|
static inline Result romfsExit(void)
|
|
{
|
|
return romfsUnmount(NULL);
|
|
}
|