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suyu/src/core/file_sys/patch_manager.h
Morph 99ceb03a1c general: Convert source file copyright comments over to SPDX
This formats all copyright comments according to SPDX formatting guidelines.
Additionally, this resolves the remaining GPLv2 only licensed files by relicensing them to GPLv2.0-or-later.
2022-04-23 05:55:32 -04:00

94 lines
3.3 KiB
C++

// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <map>
#include <memory>
#include <optional>
#include <string>
#include "common/common_types.h"
#include "core/file_sys/nca_metadata.h"
#include "core/file_sys/vfs_types.h"
#include "core/memory/dmnt_cheat_types.h"
namespace Core {
class System;
}
namespace Service::FileSystem {
class FileSystemController;
}
namespace FileSys {
class ContentProvider;
class NCA;
class NACP;
// A centralized class to manage patches to games.
class PatchManager {
public:
using BuildID = std::array<u8, 0x20>;
using Metadata = std::pair<std::unique_ptr<NACP>, VirtualFile>;
using PatchVersionNames = std::map<std::string, std::string, std::less<>>;
explicit PatchManager(u64 title_id_,
const Service::FileSystem::FileSystemController& fs_controller_,
const ContentProvider& content_provider_);
~PatchManager();
[[nodiscard]] u64 GetTitleID() const;
// Currently tracked ExeFS patches:
// - Game Updates
[[nodiscard]] VirtualDir PatchExeFS(VirtualDir exefs) const;
// Currently tracked NSO patches:
// - IPS
// - IPSwitch
[[nodiscard]] std::vector<u8> PatchNSO(const std::vector<u8>& nso,
const std::string& name) const;
// Checks to see if PatchNSO() will have any effect given the NSO's build ID.
// Used to prevent expensive copies in NSO loader.
[[nodiscard]] bool HasNSOPatch(const BuildID& build_id) const;
// Creates a CheatList object with all
[[nodiscard]] std::vector<Core::Memory::CheatEntry> CreateCheatList(
const BuildID& build_id) const;
// Currently tracked RomFS patches:
// - Game Updates
// - LayeredFS
[[nodiscard]] VirtualFile PatchRomFS(VirtualFile base, u64 ivfc_offset,
ContentRecordType type = ContentRecordType::Program,
VirtualFile update_raw = nullptr,
bool apply_layeredfs = true) const;
// Returns a vector of pairs between patch names and patch versions.
// i.e. Update 3.2.2 will return {"Update", "3.2.2"}
[[nodiscard]] PatchVersionNames GetPatchVersionNames(VirtualFile update_raw = nullptr) const;
// If the game update exists, returns the u32 version field in its Meta-type NCA. If that fails,
// it will fallback to the Meta-type NCA of the base game. If that fails, the result will be
// std::nullopt
[[nodiscard]] std::optional<u32> GetGameVersion() 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.
[[nodiscard]] Metadata GetControlMetadata() const;
// Version of GetControlMetadata that takes an arbitrary NCA
[[nodiscard]] Metadata ParseControlNCA(const NCA& nca) const;
private:
[[nodiscard]] std::vector<VirtualFile> CollectPatches(const std::vector<VirtualDir>& patch_dirs,
const std::string& build_id) const;
u64 title_id;
const Service::FileSystem::FileSystemController& fs_controller;
const ContentProvider& content_provider;
};
} // namespace FileSys