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suyu/src/core/file_sys/partition_filesystem.h
Zach Hilman 77c684c114 Virtual Filesystem (#597)
* Add VfsFile and VfsDirectory classes

* Finish abstract Vfs classes

* Implement RealVfsFile (computer fs backend)

* Finish RealVfsFile and RealVfsDirectory

* Finished OffsetVfsFile

* More changes

* Fix import paths

* Major refactor

* Remove double const

* Use experimental/filesystem or filesystem depending on compiler

* Port partition_filesystem

* More changes

* More Overhaul

* FSP_SRV fixes

* Fixes and testing

* Try to get filesystem to compile

* Filesystem on linux

* Remove std::filesystem and document/test

* Compile fixes

* Missing include

* Bug fixes

* Fixes

* Rename v_file and v_dir

* clang-format fix

* Rename NGLOG_* to LOG_*

* Most review changes

* Fix TODO

* Guess 'main' to be Directory by filename
2018-07-06 10:51:32 -04:00

86 lines
2.1 KiB
C++

// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <string>
#include <vector>
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "common/swap.h"
#include "core/file_sys/vfs.h"
namespace Loader {
enum class ResultStatus;
}
namespace FileSys {
/**
* Helper which implements an interface to parse PFS/HFS filesystems.
* Data can either be loaded from a file path or data with an offset into it.
*/
class PartitionFilesystem : public ReadOnlyVfsDirectory {
public:
explicit PartitionFilesystem(std::shared_ptr<VfsFile> file);
Loader::ResultStatus GetStatus() const;
std::vector<std::shared_ptr<VfsFile>> GetFiles() const override;
std::vector<std::shared_ptr<VfsDirectory>> GetSubdirectories() const override;
std::string GetName() const override;
std::shared_ptr<VfsDirectory> GetParentDirectory() const override;
void PrintDebugInfo() const;
protected:
bool ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) override;
private:
struct Header {
u32_le magic;
u32_le num_entries;
u32_le strtab_size;
INSERT_PADDING_BYTES(0x4);
};
static_assert(sizeof(Header) == 0x10, "PFS/HFS header structure size is wrong");
#pragma pack(push, 1)
struct FSEntry {
u64_le offset;
u64_le size;
u32_le strtab_offset;
};
static_assert(sizeof(FSEntry) == 0x14, "FS entry structure size is wrong");
struct PFSEntry {
FSEntry fs_entry;
INSERT_PADDING_BYTES(0x4);
};
static_assert(sizeof(PFSEntry) == 0x18, "PFS entry structure size is wrong");
struct HFSEntry {
FSEntry fs_entry;
u32_le hash_region_size;
INSERT_PADDING_BYTES(0x8);
std::array<char, 0x20> hash;
};
static_assert(sizeof(HFSEntry) == 0x40, "HFS entry structure size is wrong");
#pragma pack(pop)
Loader::ResultStatus status;
Header pfs_header;
bool is_hfs;
size_t content_offset;
std::vector<VirtualFile> pfs_files;
std::vector<VirtualDir> pfs_dirs;
};
} // namespace FileSys