mirror of
https://github.com/citra-emu/citra.git
synced 2024-12-19 04:41:06 +00:00
84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
// Copyright 2014 Citra Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include <cstddef>
|
|
#include <memory>
|
|
#include <string>
|
|
#include <vector>
|
|
#include "common/common_types.h"
|
|
#include "common/file_util.h"
|
|
#include "core/file_sys/archive_backend.h"
|
|
#include "core/file_sys/directory_backend.h"
|
|
#include "core/file_sys/file_backend.h"
|
|
#include "core/hle/result.h"
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
// FileSys namespace
|
|
|
|
namespace FileSys {
|
|
|
|
/**
|
|
* Helper which implements an interface to deal with IVFC images used in some archives
|
|
* This should be subclassed by concrete archive types, which will provide the
|
|
* input data (load the raw IVFC archive) and override any required methods
|
|
*/
|
|
class IVFCArchive : public ArchiveBackend {
|
|
public:
|
|
IVFCArchive(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size)
|
|
: romfs_file(file), data_offset(offset), data_size(size) {}
|
|
|
|
std::string GetName() const override;
|
|
|
|
ResultVal<std::unique_ptr<FileBackend>> OpenFile(const Path& path,
|
|
const Mode& mode) const override;
|
|
ResultCode DeleteFile(const Path& path) const override;
|
|
ResultCode RenameFile(const Path& src_path, const Path& dest_path) const override;
|
|
ResultCode DeleteDirectory(const Path& path) const override;
|
|
ResultCode DeleteDirectoryRecursively(const Path& path) const override;
|
|
ResultCode CreateFile(const Path& path, u64 size) const override;
|
|
ResultCode CreateDirectory(const Path& path) const override;
|
|
ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override;
|
|
ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(const Path& path) const override;
|
|
u64 GetFreeBytes() const override;
|
|
|
|
protected:
|
|
std::shared_ptr<FileUtil::IOFile> romfs_file;
|
|
u64 data_offset;
|
|
u64 data_size;
|
|
};
|
|
|
|
class IVFCFile : public FileBackend {
|
|
public:
|
|
IVFCFile(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size)
|
|
: romfs_file(file), data_offset(offset), data_size(size) {}
|
|
|
|
ResultVal<size_t> Read(u64 offset, size_t length, u8* buffer) const override;
|
|
ResultVal<size_t> Write(u64 offset, size_t length, bool flush, const u8* buffer) const override;
|
|
u64 GetSize() const override;
|
|
bool SetSize(u64 size) const override;
|
|
bool Close() const override {
|
|
return false;
|
|
}
|
|
void Flush() const override {}
|
|
|
|
private:
|
|
std::shared_ptr<FileUtil::IOFile> romfs_file;
|
|
u64 data_offset;
|
|
u64 data_size;
|
|
};
|
|
|
|
class IVFCDirectory : public DirectoryBackend {
|
|
public:
|
|
u32 Read(const u32 count, Entry* entries) override {
|
|
return 0;
|
|
}
|
|
bool Close() const override {
|
|
return false;
|
|
}
|
|
};
|
|
|
|
} // namespace FileSys
|