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37c09343d8
This lets VolumeDirectory/DirectoryBlob skip implementing various volume functions like GetGameID, GetBanner, etc. It also lets us view extracted discs in the game list. This ends up breaking the boot process for Wii DirectoryBlobs due to workarounds being removed from the boot process, but that will be fixed later by adding proper DirectoryBlob support for things like TMDs. We now expect the directories to be laid out in a certain format (based on the format that WIT uses) instead of requiring the user to set the DVD root and apploader path settings.
114 lines
3.4 KiB
C++
114 lines
3.4 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/ColorUtil.h"
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#include "Common/CommonTypes.h"
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#include "Common/File.h"
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#include "Common/FileUtil.h"
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#include "Common/NandPaths.h"
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#include "Common/StringUtil.h"
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#include "Common/Swap.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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static const unsigned int WII_BANNER_WIDTH = 192;
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static const unsigned int WII_BANNER_HEIGHT = 64;
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static const unsigned int WII_BANNER_SIZE = WII_BANNER_WIDTH * WII_BANNER_HEIGHT * 2;
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static const unsigned int WII_BANNER_OFFSET = 0xA0;
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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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std::vector<u32> Volume::GetWiiBanner(int* width, int* height, u64 title_id)
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{
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*width = 0;
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*height = 0;
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const std::string file_name =
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Common::GetTitleDataPath(title_id, Common::FROM_CONFIGURED_ROOT) + "banner.bin";
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File::IOFile file(file_name, "rb");
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if (file.GetSize() < WII_BANNER_OFFSET + WII_BANNER_SIZE)
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return std::vector<u32>();
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if (!file.Seek(WII_BANNER_OFFSET, SEEK_SET))
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return std::vector<u32>();
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std::vector<u8> banner_file(WII_BANNER_SIZE);
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if (!file.ReadBytes(banner_file.data(), banner_file.size()))
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return std::vector<u32>();
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std::vector<u32> image_buffer(WII_BANNER_WIDTH * WII_BANNER_HEIGHT);
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ColorUtil::decode5A3image(image_buffer.data(), (u16*)banner_file.data(), WII_BANNER_WIDTH,
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WII_BANNER_HEIGHT);
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*width = WII_BANNER_WIDTH;
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*height = WII_BANNER_HEIGHT;
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return image_buffer;
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}
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std::map<Language, std::string> Volume::ReadWiiNames(const std::vector<u8>& 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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size_t name_start = NAME_BYTES_LENGTH * i;
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size_t name_end = name_start + NAME_BYTES_LENGTH;
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if (data.size() >= name_end)
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{
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u16* temp = (u16*)(data.data() + name_start);
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std::wstring out_temp(NAME_STRING_LENGTH, '\0');
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std::transform(temp, temp + out_temp.size(), out_temp.begin(), (u16(&)(u16))Common::swap16);
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out_temp.erase(std::find(out_temp.begin(), out_temp.end(), 0x00), out_temp.end());
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std::string name = UTF16ToUTF8(out_temp);
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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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std::unique_ptr<Volume> CreateVolumeFromFilename(const std::string& filename)
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{
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std::unique_ptr<BlobReader> reader(CreateBlobReader(filename));
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if (reader == nullptr)
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return nullptr;
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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 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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// 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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} // namespace
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