dolphin/Source/Core/DiscIO/Volume.cpp

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// Copyright 2009 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "DiscIO/Volume.h"
#include <algorithm>
#include <map>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "Common/CommonTypes.h"
#include "Common/StringUtil.h"
#include "DiscIO/Blob.h"
#include "DiscIO/Enums.h"
#include "DiscIO/VolumeGC.h"
#include "DiscIO/VolumeWad.h"
#include "DiscIO/VolumeWii.h"
namespace DiscIO
{
const IOS::ES::TicketReader Volume::INVALID_TICKET{};
const IOS::ES::TMDReader Volume::INVALID_TMD{};
const std::vector<u8> Volume::INVALID_CERT_CHAIN{};
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std::map<Language, std::string> Volume::ReadWiiNames(const std::vector<char16_t>& data)
{
std::map<Language, std::string> names;
for (size_t i = 0; i < NUMBER_OF_LANGUAGES; ++i)
{
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const size_t name_start = NAME_CHARS_LENGTH * i;
if (name_start + NAME_CHARS_LENGTH <= data.size())
{
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const std::string name = UTF16BEToUTF8(data.data() + name_start, NAME_CHARS_LENGTH);
if (!name.empty())
names[static_cast<Language>(i)] = name;
}
}
return names;
}
static std::unique_ptr<VolumeDisc> CreateDisc(std::unique_ptr<BlobReader>& reader)
{
// Check for Wii
const std::optional<u32> wii_magic = reader->ReadSwapped<u32>(0x18);
if (wii_magic == u32(0x5D1C9EA3))
return std::make_unique<VolumeWii>(std::move(reader));
// Check for GC
const std::optional<u32> gc_magic = reader->ReadSwapped<u32>(0x1C);
if (gc_magic == u32(0xC2339F3D))
return std::make_unique<VolumeGC>(std::move(reader));
// No known magic words found
return nullptr;
}
std::unique_ptr<VolumeDisc> CreateDisc(const std::string& path)
{
std::unique_ptr<BlobReader> reader(CreateBlobReader(path));
return reader ? CreateDisc(reader) : nullptr;
}
static std::unique_ptr<VolumeWAD> CreateWAD(std::unique_ptr<BlobReader>& reader)
{
// Check for WAD
// 0x206962 for boot2 wads
const std::optional<u32> wad_magic = reader->ReadSwapped<u32>(0x02);
if (wad_magic == u32(0x00204973) || wad_magic == u32(0x00206962))
return std::make_unique<VolumeWAD>(std::move(reader));
// No known magic words found
return nullptr;
}
std::unique_ptr<VolumeWAD> CreateWAD(const std::string& path)
{
std::unique_ptr<BlobReader> reader(CreateBlobReader(path));
return reader ? CreateWAD(reader) : nullptr;
}
std::unique_ptr<Volume> CreateVolume(const std::string& path)
{
std::unique_ptr<BlobReader> reader(CreateBlobReader(path));
if (reader == nullptr)
return nullptr;
std::unique_ptr<VolumeDisc> disc = CreateDisc(reader);
if (disc)
return disc;
std::unique_ptr<VolumeWAD> wad = CreateWAD(reader);
if (wad)
return wad;
return nullptr;
}
} // namespace DiscIO