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0f5a4b37ee
...in addition to the existing function CreateVolume (renamed from CreateVolumeFromFilename). Lets code easily add constraints such as not letting the user select a WAD file when using the disc changing functionality.
104 lines
2.7 KiB
C++
104 lines
2.7 KiB
C++
// Copyright 2009 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include "DiscIO/Volume.h"
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#include <algorithm>
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#include <map>
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#include <memory>
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#include <optional>
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#include <string>
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#include <utility>
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#include <vector>
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#include "Common/CommonTypes.h"
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#include "Common/StringUtil.h"
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#include "DiscIO/Blob.h"
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#include "DiscIO/Enums.h"
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#include "DiscIO/VolumeGC.h"
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#include "DiscIO/VolumeWad.h"
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#include "DiscIO/VolumeWii.h"
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namespace DiscIO
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{
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const IOS::ES::TicketReader Volume::INVALID_TICKET{};
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const IOS::ES::TMDReader Volume::INVALID_TMD{};
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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)
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{
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std::map<Language, std::string> names;
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for (size_t i = 0; i < NUMBER_OF_LANGUAGES; ++i)
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{
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const size_t name_start = NAME_CHARS_LENGTH * i;
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if (name_start + NAME_CHARS_LENGTH <= data.size())
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{
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const std::string name = UTF16BEToUTF8(data.data() + name_start, NAME_CHARS_LENGTH);
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if (!name.empty())
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names[static_cast<Language>(i)] = name;
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}
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}
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return names;
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}
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static std::unique_ptr<VolumeDisc> CreateDisc(std::unique_ptr<BlobReader>& reader)
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{
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// Check for Wii
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const std::optional<u32> wii_magic = reader->ReadSwapped<u32>(0x18);
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if (wii_magic == u32(0x5D1C9EA3))
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return std::make_unique<VolumeWii>(std::move(reader));
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// Check for GC
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const std::optional<u32> gc_magic = reader->ReadSwapped<u32>(0x1C);
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if (gc_magic == u32(0xC2339F3D))
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return std::make_unique<VolumeGC>(std::move(reader));
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// No known magic words found
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return nullptr;
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}
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std::unique_ptr<VolumeDisc> CreateDisc(const std::string& path)
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{
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std::unique_ptr<BlobReader> reader(CreateBlobReader(path));
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return reader ? CreateDisc(reader) : nullptr;
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}
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static std::unique_ptr<VolumeWAD> CreateWAD(std::unique_ptr<BlobReader>& reader)
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{
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// Check for WAD
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// 0x206962 for boot2 wads
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const std::optional<u32> wad_magic = reader->ReadSwapped<u32>(0x02);
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if (wad_magic == u32(0x00204973) || wad_magic == u32(0x00206962))
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return std::make_unique<VolumeWAD>(std::move(reader));
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// No known magic words found
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return nullptr;
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}
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std::unique_ptr<VolumeWAD> CreateWAD(const std::string& path)
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{
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std::unique_ptr<BlobReader> reader(CreateBlobReader(path));
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return reader ? CreateWAD(reader) : nullptr;
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}
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std::unique_ptr<Volume> CreateVolume(const std::string& path)
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{
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std::unique_ptr<BlobReader> reader(CreateBlobReader(path));
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if (reader == nullptr)
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return nullptr;
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std::unique_ptr<VolumeDisc> disc = CreateDisc(reader);
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if (disc)
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return disc;
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std::unique_ptr<VolumeWAD> wad = CreateWAD(reader);
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if (wad)
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return wad;
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return nullptr;
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}
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} // namespace DiscIO
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