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// Copyright 2008 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "DiscIO/VolumeGC.h"
#include <cstddef>
#include <map>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
#include <mbedtls/sha1.h>
#include "Common/Assert.h"
#include "Common/ColorUtil.h"
#include "Common/CommonTypes.h"
#include "Common/Logging/Log.h"
#include "Common/MsgHandler.h"
#include "Common/StringUtil.h"
#include "DiscIO/Blob.h"
#include "DiscIO/DiscExtractor.h"
#include "DiscIO/Enums.h"
#include "DiscIO/FileSystemGCWii.h"
#include "DiscIO/Filesystem.h"
#include "DiscIO/Volume.h"
namespace DiscIO
{
VolumeGC::VolumeGC(std::unique_ptr<BlobReader> reader) : m_reader(std::move(reader))
{
ASSERT(m_reader);
m_file_system = [this]() -> std::unique_ptr<FileSystem> {
auto file_system = std::make_unique<FileSystemGCWii>(this, PARTITION_NONE);
return file_system->IsValid() ? std::move(file_system) : nullptr;
};
m_converted_banner = [this] { return LoadBannerFile(); };
}
VolumeGC::~VolumeGC()
{
}
bool VolumeGC::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* VolumeGC::GetFileSystem(const Partition& partition) const
{
return m_file_system->get();
}
std::string VolumeGC::GetGameTDBID(const Partition& partition) const
{
const std::string game_id = GetGameID(partition);
// Don't return an ID for Datel discs that are using the game ID of NHL Hitz 2002
return game_id == "GNHE5d" && IsDatelDisc() ? "" : game_id;
}
Region VolumeGC::GetRegion() const
{
return RegionCodeToRegion(m_reader->ReadSwapped<u32>(0x458));
}
std::map<Language, std::string> VolumeGC::GetShortNames() const
{
return m_converted_banner->short_names;
}
std::map<Language, std::string> VolumeGC::GetLongNames() const
{
return m_converted_banner->long_names;
}
std::map<Language, std::string> VolumeGC::GetShortMakers() const
{
return m_converted_banner->short_makers;
}
std::map<Language, std::string> VolumeGC::GetLongMakers() const
{
return m_converted_banner->long_makers;
}
std::map<Language, std::string> VolumeGC::GetDescriptions() const
{
return m_converted_banner->descriptions;
}
std::vector<u32> VolumeGC::GetBanner(u32* width, u32* height) const
{
*width = m_converted_banner->image_width;
*height = m_converted_banner->image_height;
return m_converted_banner->image_buffer;
}
BlobType VolumeGC::GetBlobType() const
{
return m_reader->GetBlobType();
}
u64 VolumeGC::GetSize() const
{
return m_reader->GetDataSize();
}
bool VolumeGC::IsSizeAccurate() const
{
return m_reader->IsDataSizeAccurate();
}
u64 VolumeGC::GetRawSize() const
{
return m_reader->GetRawSize();
}
const BlobReader& VolumeGC::GetBlobReader() const
{
return *m_reader;
}
Platform VolumeGC::GetVolumeType() const
{
return Platform::GameCubeDisc;
}
bool VolumeGC::IsDatelDisc() const
{
return !GetBootDOLOffset(*this, PARTITION_NONE).has_value();
}
std::array<u8, 20> VolumeGC::GetSyncHash() const
{
mbedtls_sha1_context context;
mbedtls_sha1_init(&context);
mbedtls_sha1_starts_ret(&context);
AddGamePartitionToSyncHash(&context);
std::array<u8, 20> hash;
mbedtls_sha1_finish_ret(&context, hash.data());
return hash;
}
VolumeGC::ConvertedGCBanner VolumeGC::LoadBannerFile() const
{
GCBanner banner_file;
const u64 file_size = ReadFile(*this, PARTITION_NONE, "opening.bnr",
reinterpret_cast<u8*>(&banner_file), sizeof(GCBanner));
if (file_size < 4)
{
WARN_LOG_FMT(DISCIO, "Could not read opening.bnr.");
return {}; // Return early so that we don't access the uninitialized banner_file.id
}
constexpr u32 BNR1_MAGIC = 0x31524e42;
constexpr u32 BNR2_MAGIC = 0x32524e42;
bool is_bnr1;
if (banner_file.id == BNR1_MAGIC && file_size == BNR1_SIZE)
{
is_bnr1 = true;
}
else if (banner_file.id == BNR2_MAGIC && file_size == BNR2_SIZE)
{
is_bnr1 = false;
}
else
{
WARN_LOG_FMT(DISCIO, "Invalid opening.bnr. Type: {:#0x} Size: {:#0x}", banner_file.id,
file_size);
return {};
}
return ExtractBannerInformation(banner_file, is_bnr1);
}
VolumeGC::ConvertedGCBanner VolumeGC::ExtractBannerInformation(const GCBanner& banner_file,
bool is_bnr1) const
{
ConvertedGCBanner banner;
u32 number_of_languages = 0;
Language start_language = Language::Unknown;
if (is_bnr1) // NTSC
{
number_of_languages = 1;
start_language = GetRegion() == Region::NTSC_J ? Language::Japanese : Language::English;
}
else // PAL
{
number_of_languages = 6;
start_language = Language::English;
}
banner.image_width = GC_BANNER_WIDTH;
banner.image_height = GC_BANNER_HEIGHT;
banner.image_buffer = std::vector<u32>(GC_BANNER_WIDTH * GC_BANNER_HEIGHT);
Common::Decode5A3Image(banner.image_buffer.data(), banner_file.image, GC_BANNER_WIDTH,
GC_BANNER_HEIGHT);
for (u32 i = 0; i < number_of_languages; ++i)
{
const GCBannerInformation& info = banner_file.information[i];
Language language = static_cast<Language>(static_cast<int>(start_language) + i);
std::string description = DecodeString(info.description);
if (!description.empty())
banner.descriptions.emplace(language, description);
std::string short_name = DecodeString(info.short_name);
if (!short_name.empty())
banner.short_names.emplace(language, short_name);
std::string long_name = DecodeString(info.long_name);
if (!long_name.empty())
banner.long_names.emplace(language, long_name);
std::string short_maker = DecodeString(info.short_maker);
if (!short_maker.empty())
banner.short_makers.emplace(language, short_maker);
std::string long_maker = DecodeString(info.long_maker);
if (!long_maker.empty())
banner.long_makers.emplace(language, long_maker);
}
return banner;
}
VolumeGC::ConvertedGCBanner::ConvertedGCBanner() = default;
VolumeGC::ConvertedGCBanner::~ConvertedGCBanner() = default;
} // namespace DiscIO
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