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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/ColorUtil.h"
#include "Common/CommonTypes.h"
#include "Common/FileUtil.h"
#include "Common/NandPaths.h"
#include "Common/StringUtil.h"
#include "Common/Swap.h"
#include "DiscIO/Blob.h"
#include "DiscIO/Enums.h"
#include "DiscIO/VolumeDirectory.h"
#include "DiscIO/VolumeGC.h"
#include "DiscIO/VolumeWad.h"
#include "DiscIO/VolumeWiiCrypted.h"
namespace DiscIO
{
static const unsigned int WII_BANNER_WIDTH = 192;
static const unsigned int WII_BANNER_HEIGHT = 64;
static const unsigned int WII_BANNER_SIZE = WII_BANNER_WIDTH * WII_BANNER_HEIGHT * 2;
static const unsigned int WII_BANNER_OFFSET = 0xA0;
const IOS::ES::TicketReader IVolume::INVALID_TICKET{};
const IOS::ES::TMDReader IVolume::INVALID_TMD{};
std::vector<u32> IVolume::GetWiiBanner(int* width, int* height, u64 title_id)
{
*width = 0;
*height = 0;
const std::string file_name =
Common::GetTitleDataPath(title_id, Common::FROM_CONFIGURED_ROOT) + "banner.bin";
if (!File::Exists(file_name))
return std::vector<u32>();
if (File::GetSize(file_name) < WII_BANNER_OFFSET + WII_BANNER_SIZE)
return std::vector<u32>();
File::IOFile file(file_name, "rb");
if (!file.Seek(WII_BANNER_OFFSET, SEEK_SET))
return std::vector<u32>();
std::vector<u8> banner_file(WII_BANNER_SIZE);
if (!file.ReadBytes(banner_file.data(), banner_file.size()))
return std::vector<u32>();
std::vector<u32> image_buffer(WII_BANNER_WIDTH * WII_BANNER_HEIGHT);
ColorUtil::decode5A3image(image_buffer.data(), (u16*)banner_file.data(), WII_BANNER_WIDTH,
WII_BANNER_HEIGHT);
*width = WII_BANNER_WIDTH;
*height = WII_BANNER_HEIGHT;
return image_buffer;
}
std::map<Language, std::string> IVolume::ReadWiiNames(const std::vector<u8>& data)
{
std::map<Language, std::string> names;
for (size_t i = 0; i < NUMBER_OF_LANGUAGES; ++i)
{
size_t name_start = NAME_BYTES_LENGTH * i;
size_t name_end = name_start + NAME_BYTES_LENGTH;
if (data.size() >= name_end)
{
u16* temp = (u16*)(data.data() + name_start);
std::wstring out_temp(NAME_STRING_LENGTH, '\0');
std::transform(temp, temp + out_temp.size(), out_temp.begin(), (u16(&)(u16))Common::swap16);
out_temp.erase(std::find(out_temp.begin(), out_temp.end(), 0x00), out_temp.end());
std::string name = UTF16ToUTF8(out_temp);
if (!name.empty())
names[static_cast<Language>(i)] = name;
}
}
return names;
}
std::unique_ptr<IVolume> CreateVolumeFromFilename(const std::string& filename)
{
std::unique_ptr<IBlobReader> reader(CreateBlobReader(filename));
if (reader == nullptr)
return nullptr;
// Check for Wii
const std::optional<u32> wii_magic = reader->ReadSwapped<u32>(0x18);
if (wii_magic == u32(0x5D1C9EA3))
{
const std::optional<u32> wii_container_magic = reader->ReadSwapped<u32>(0x60);
if (wii_container_magic == u32(0))
return std::make_unique<CVolumeWiiCrypted>(std::move(reader));
return std::make_unique<CVolumeGC>(std::move(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<CVolumeWAD>(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<CVolumeGC>(std::move(reader));
// No known magic words found
return nullptr;
}
std::unique_ptr<IVolume> CreateVolumeFromDirectory(const std::string& directory, bool is_wii,
const std::string& apploader,
const std::string& dol)
{
if (CVolumeDirectory::IsValidDirectory(directory))
return std::make_unique<CVolumeDirectory>(directory, is_wii, apploader, dol);
return nullptr;
}
} // namespace
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