dolphin/Source/Core/DiscIO/VolumeDirectory.h

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// Copyright 2008 Dolphin Emulator Project
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// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include <map>
#include <memory>
#include <string>
#include <vector>
#include "Common/CommonTypes.h"
#include "DiscIO/Volume.h"
namespace File { struct FSTEntry; }
//
// --- this volume type is used for reading files directly from the hard drive ---
//
namespace DiscIO
{
class CVolumeDirectory : public IVolume
{
public:
CVolumeDirectory(const std::string& _rDirectory, bool _bIsWii,
const std::string& _rApploader = "", const std::string& _rDOL = "");
~CVolumeDirectory();
static bool IsValidDirectory(const std::string& _rDirectory);
bool Read(u64 _Offset, u64 _Length, u8* _pBuffer, bool decrypt) const override;
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std::string GetUniqueID() const override;
void SetUniqueID(const std::string& _ID);
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std::string GetMakerID() const override;
u16 GetRevision() const override { return 0; }
std::string GetInternalName() const override;
std::map<IVolume::ELanguage, std::string> GetNames(bool prefer_long) const override;
void SetName(const std::string&);
u64 GetFSTSize() const override;
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std::string GetApploaderDate() const override;
EPlatform GetVolumeType() const override;
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ECountry GetCountry() const override;
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u64 GetSize() const override;
u64 GetRawSize() const override;
void BuildFST();
private:
static std::string ExtractDirectoryName(const std::string& _rDirectory);
void SetDiskTypeWii();
void SetDiskTypeGC();
bool SetApploader(const std::string& _rApploader);
void SetDOL(const std::string& _rDOL);
// writing to read buffer
void WriteToBuffer(u64 _SrcStartAddress, u64 _SrcLength, const u8* _Src,
u64& _Address, u64& _Length, u8*& _pBuffer) const;
void PadToAddress(u64 _StartAddress, u64& _Address, u64& _Length, u8*& _pBuffer) const;
void Write32(u32 data, u32 offset, std::vector<u8>* const buffer);
// FST creation
void WriteEntryData(u32& entryOffset, u8 type, u32 nameOffset, u64 dataOffset, u64 length);
void WriteEntryName(u32& nameOffset, const std::string& name);
void WriteEntry(const File::FSTEntry& entry, u32& fstOffset, u32& nameOffset, u64& dataOffset, u32 parentEntryNum);
// returns number of entries found in _Directory
u64 AddDirectoryEntries(const std::string& _Directory, File::FSTEntry& parentEntry);
std::string m_rootDirectory;
std::map<u64, std::string> m_virtualDisk;
u32 m_totalNameSize;
bool m_is_wii;
// GameCube has no shift, Wii has 2 bit shift
u32 m_addressShift;
// first address on disk containing file data
u64 m_dataStartAddress;
u64 m_fstNameOffset;
std::vector<u8> m_FSTData;
std::vector<u8> m_diskHeader;
#pragma pack(push, 1)
struct SDiskHeaderInfo
{
u32 debug_mntr_size;
u32 simulated_mem_size;
u32 arg_offset;
u32 debug_flag;
u32 track_location;
u32 track_size;
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u32 country_code;
u32 unknown;
u32 unknown2;
// All the data is byteswapped
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SDiskHeaderInfo()
{
debug_mntr_size = 0;
simulated_mem_size = 0;
arg_offset = 0;
debug_flag = 0;
track_location = 0;
track_size = 0;
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country_code = 0;
unknown = 0;
unknown2 = 0;
}
};
#pragma pack(pop)
std::unique_ptr<SDiskHeaderInfo> m_diskHeaderInfo;
std::vector<u8> m_apploader;
std::vector<u8> m_DOL;
u64 m_fst_address;
u64 m_dol_address;
static const u8 ENTRY_SIZE = 0x0c;
static const u8 FILE_ENTRY = 0;
static const u8 DIRECTORY_ENTRY = 1;
static const u64 DISKHEADER_ADDRESS = 0;
static const u64 DISKHEADERINFO_ADDRESS = 0x440;
static const u64 APPLOADER_ADDRESS = 0x2440;
static const u32 MAX_NAME_LENGTH = 0x3df;
};
} // namespace