dolphin/Source/Core/DiscIO/NANDContentLoader.h

128 lines
3.1 KiB
C++

// Copyright 2009 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include <cstddef>
#include <memory>
#include <string>
#include <unordered_map>
#include <vector>
#include "Common/CommonTypes.h"
#include "Common/NandPaths.h"
#include "Core/IOS/ES/Formats.h"
namespace File
{
class IOFile;
}
namespace DiscIO
{
enum class Region;
// TODO: move some of these to Core/IOS/ES.
IOS::ES::TicketReader FindSignedTicket(u64 title_id);
class NANDContentData
{
public:
virtual ~NANDContentData() = 0;
virtual void Open() {}
virtual std::vector<u8> Get() = 0;
virtual bool GetRange(u32 start, u32 size, u8* buffer) = 0;
virtual void Close() {}
};
class NANDContentDataFile final : public NANDContentData
{
public:
explicit NANDContentDataFile(const std::string& filename);
~NANDContentDataFile();
void Open() override;
std::vector<u8> Get() override;
bool GetRange(u32 start, u32 size, u8* buffer) override;
void Close() override;
private:
void EnsureOpen();
const std::string m_filename;
std::unique_ptr<File::IOFile> m_file;
};
class NANDContentDataBuffer final : public NANDContentData
{
public:
explicit NANDContentDataBuffer(const std::vector<u8>& buffer) : m_buffer(buffer) {}
std::vector<u8> Get() override { return m_buffer; }
bool GetRange(u32 start, u32 size, u8* buffer) override;
private:
const std::vector<u8> m_buffer;
};
struct NANDContent
{
IOS::ES::Content m_metadata;
std::unique_ptr<NANDContentData> m_Data;
};
// Instances of this class must be created by NANDContentManager
class NANDContentLoader final
{
public:
explicit NANDContentLoader(const std::string& content_name, Common::FromWhichRoot from);
~NANDContentLoader();
bool IsValid() const;
const NANDContent* GetContentByID(u32 id) const;
const NANDContent* GetContentByIndex(int index) const;
const IOS::ES::TMDReader& GetTMD() const { return m_tmd; }
const IOS::ES::TicketReader& GetTicket() const { return m_ticket; }
const std::vector<NANDContent>& GetContent() const { return m_Content; }
private:
bool Initialize(const std::string& name);
void InitializeContentEntries(const std::vector<u8>& data_app);
bool m_Valid = false;
bool m_IsWAD = false;
Common::FromWhichRoot m_root;
std::string m_Path;
IOS::ES::TMDReader m_tmd;
IOS::ES::TicketReader m_ticket;
std::vector<NANDContent> m_Content;
};
// we open the NAND Content files too often... let's cache them
class NANDContentManager
{
public:
static NANDContentManager& Access()
{
static NANDContentManager instance;
return instance;
}
const NANDContentLoader&
GetNANDLoader(const std::string& content_path,
Common::FromWhichRoot from = Common::FROM_CONFIGURED_ROOT);
const NANDContentLoader&
GetNANDLoader(u64 title_id, Common::FromWhichRoot from = Common::FROM_CONFIGURED_ROOT);
void ClearCache();
private:
NANDContentManager() {}
~NANDContentManager();
NANDContentManager(NANDContentManager const&) = delete;
void operator=(NANDContentManager const&) = delete;
std::unordered_map<std::string, std::unique_ptr<NANDContentLoader>> m_map;
};
}