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// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <map>
#include <memory>
#include <string>
#include "common/common_types.h"
#include "core/file_sys/cheat_engine.h"
#include "core/file_sys/nca_metadata.h"
#include "core/file_sys/vfs.h"
namespace FileSys {
class NCA;
class NACP;
enum class TitleVersionFormat : u8 {
ThreeElements, ///< vX.Y.Z
FourElements, ///< vX.Y.Z.W
};
std::string FormatTitleVersion(u32 version,
TitleVersionFormat format = TitleVersionFormat::ThreeElements);
// A centralized class to manage patches to games.
class PatchManager {
public:
explicit PatchManager(u64 title_id);
~PatchManager();
u64 GetTitleID() const;
// Currently tracked ExeFS patches:
// - Game Updates
VirtualDir PatchExeFS(VirtualDir exefs) const;
// Currently tracked NSO patches:
// - IPS
// - IPSwitch
std::vector<u8> PatchNSO(const std::vector<u8>& nso) const;
// Checks to see if PatchNSO() will have any effect given the NSO's build ID.
// Used to prevent expensive copies in NSO loader.
bool HasNSOPatch(const std::array<u8, 0x20>& build_id) const;
// Creates a CheatList object with all
std::vector<CheatList> CreateCheatList(const std::array<u8, 0x20>& build_id) const;
// Currently tracked RomFS patches:
// - Game Updates
// - LayeredFS
VirtualFile PatchRomFS(VirtualFile base, u64 ivfc_offset,
ContentRecordType type = ContentRecordType::Program,
VirtualFile update_raw = nullptr) const;
// Returns a vector of pairs between patch names and patch versions.
// i.e. Update 3.2.2 will return {"Update", "3.2.2"}
std::map<std::string, std::string, std::less<>> GetPatchVersionNames(
VirtualFile update_raw = nullptr) const;
// Given title_id of the program, attempts to get the control data of the update and parse it,
// falling back to the base control data.
std::pair<std::unique_ptr<NACP>, VirtualFile> GetControlMetadata() const;
// Version of GetControlMetadata that takes an arbitrary NCA
std::pair<std::unique_ptr<NACP>, VirtualFile> ParseControlNCA(const NCA& nca) const;
private:
std::vector<VirtualFile> CollectPatches(const std::vector<VirtualDir>& patch_dirs,
const std::string& build_id) const;
u64 title_id;
};
} // namespace FileSys
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