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// Copyright 2009 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include <cstddef>
#include <cstring>
#include <locale>
#include <map>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include "Common/Align.h"
#include "Common/Assert.h"
#include "Common/CommonTypes.h"
#include "Common/Logging/Log.h"
#include "Common/MsgHandler.h"
#include "Common/StringUtil.h"
#include "DiscIO/Blob.h"
#include "DiscIO/Enums.h"
#include "DiscIO/Volume.h"
#include "DiscIO/VolumeWad.h"
#include "DiscIO/WiiSaveBanner.h"
namespace DiscIO
{
VolumeWAD::VolumeWAD(std::unique_ptr<BlobReader> reader) : m_reader(std::move(reader))
{
ASSERT(m_reader);
// Source: http://wiibrew.org/wiki/WAD_files
m_hdr_size = m_reader->ReadSwapped<u32>(0x00).value_or(0);
m_cert_chain_size = m_reader->ReadSwapped<u32>(0x08).value_or(0);
m_ticket_size = m_reader->ReadSwapped<u32>(0x10).value_or(0);
m_tmd_size = m_reader->ReadSwapped<u32>(0x14).value_or(0);
m_data_size = m_reader->ReadSwapped<u32>(0x18).value_or(0);
m_cert_chain_offset = Common::AlignUp(m_hdr_size, 0x40);
m_ticket_offset = m_cert_chain_offset + Common::AlignUp(m_cert_chain_size, 0x40);
m_tmd_offset = m_ticket_offset + Common::AlignUp(m_ticket_size, 0x40);
m_data_offset = m_tmd_offset + Common::AlignUp(m_tmd_size, 0x40);
m_opening_bnr_offset = m_data_offset + Common::AlignUp(m_data_size, 0x40);
std::vector<u8> ticket_buffer(m_ticket_size);
Read(m_ticket_offset, m_ticket_size, ticket_buffer.data());
m_ticket.SetBytes(std::move(ticket_buffer));
if (!IOS::ES::IsValidTMDSize(m_tmd_size))
{
ERROR_LOG(DISCIO, "TMD is too large: %u bytes", m_tmd_size);
return;
}
std::vector<u8> tmd_buffer(m_tmd_size);
Read(m_tmd_offset, m_tmd_size, tmd_buffer.data());
m_tmd.SetBytes(std::move(tmd_buffer));
m_cert_chain.resize(m_cert_chain_size);
Read(m_cert_chain_offset, m_cert_chain_size, m_cert_chain.data());
}
VolumeWAD::~VolumeWAD()
{
}
bool VolumeWAD::Read(u64 offset, u64 length, u8* buffer, const Partition& partition) const
{
if (partition != PARTITION_NONE)
return false;
return m_reader->Read(offset, length, buffer);
}
const FileSystem* VolumeWAD::GetFileSystem(const Partition& partition) const
{
// TODO: Implement this?
return nullptr;
}
Region VolumeWAD::GetRegion() const
{
if (!m_tmd.IsValid())
return Region::Unknown;
return m_tmd.GetRegion();
}
Country VolumeWAD::GetCountry(const Partition& partition) const
{
if (!m_tmd.IsValid())
return Country::Unknown;
const u8 country_byte = static_cast<u8>(m_tmd.GetTitleId() & 0xff);
if (country_byte == 2) // SYSMENU
return TypicalCountryForRegion(GetSysMenuRegion(m_tmd.GetTitleVersion()));
const Region region = GetRegion();
const std::optional<u16> revision = GetRevision();
if (CountryCodeToRegion(country_byte, Platform::WiiWAD, region, revision) != region)
return TypicalCountryForRegion(region);
return CountryCodeToCountry(country_byte, Platform::WiiWAD, region, revision);
}
const IOS::ES::TicketReader& VolumeWAD::GetTicket(const Partition& partition) const
{
return m_ticket;
}
const IOS::ES::TMDReader& VolumeWAD::GetTMD(const Partition& partition) const
{
return m_tmd;
}
const std::vector<u8>& VolumeWAD::GetCertificateChain(const Partition& partition) const
{
return m_cert_chain;
}
std::vector<u64> VolumeWAD::GetContentOffsets() const
{
const std::vector<IOS::ES::Content> contents = m_tmd.GetContents();
std::vector<u64> content_offsets;
content_offsets.reserve(contents.size());
u64 offset = m_data_offset;
for (const IOS::ES::Content& content : contents)
{
content_offsets.emplace_back(offset);
offset += Common::AlignUp(content.size, 0x40);
}
return content_offsets;
}
std::string VolumeWAD::GetGameID(const Partition& partition) const
{
return m_tmd.GetGameID();
}
std::string VolumeWAD::GetGameTDBID(const Partition& partition) const
{
return m_tmd.GetGameTDBID();
}
std::string VolumeWAD::GetMakerID(const Partition& partition) const
{
char temp[2];
if (!Read(0x198 + m_tmd_offset, 2, (u8*)temp, partition))
return "00";
// Some weird channels use 0x0000 in place of the MakerID, so we need a check here
const std::locale& c_locale = std::locale::classic();
if (!std::isprint(temp[0], c_locale) || !std::isprint(temp[1], c_locale))
return "00";
return DecodeString(temp);
}
std::optional<u64> VolumeWAD::GetTitleID(const Partition& partition) const
{
return ReadSwapped<u64>(m_ticket_offset + 0x01DC, partition);
}
std::optional<u16> VolumeWAD::GetRevision(const Partition& partition) const
{
if (!m_tmd.IsValid())
return {};
return m_tmd.GetTitleVersion();
}
Platform VolumeWAD::GetVolumeType() const
{
return Platform::WiiWAD;
}
std::map<Language, std::string> VolumeWAD::GetLongNames() const
{
if (!m_tmd.IsValid() || !IOS::ES::IsChannel(m_tmd.GetTitleId()))
return {};
std::vector<char16_t> names(NAMES_TOTAL_CHARS);
if (!Read(m_opening_bnr_offset + 0x9C, NAMES_TOTAL_BYTES, reinterpret_cast<u8*>(names.data())))
return std::map<Language, std::string>();
return ReadWiiNames(names);
}
std::vector<u32> VolumeWAD::GetBanner(u32* width, u32* height) const
{
*width = 0;
*height = 0;
const std::optional<u64> title_id = GetTitleID();
if (!title_id)
return std::vector<u32>();
return WiiSaveBanner(*title_id).GetBanner(width, height);
}
BlobType VolumeWAD::GetBlobType() const
{
return m_reader->GetBlobType();
}
u64 VolumeWAD::GetSize() const
{
return m_reader->GetDataSize();
}
bool VolumeWAD::IsSizeAccurate() const
{
return m_reader->IsDataSizeAccurate();
}
u64 VolumeWAD::GetRawSize() const
{
return m_reader->GetRawSize();
}
} // namespace
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