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Previously, we had WBFS and CISO which both returned an upper bound of the size, and other formats which returned an accurate size. But now we also have NFS, which returns a lower bound of the size. To allow VolumeVerifier to make better informed decisions for NFS, let's use an enum instead of a bool for the type of data size a blob has.
249 lines
6.5 KiB
C++
249 lines
6.5 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "DiscIO/VolumeGC.h"
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#include <cstddef>
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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/Assert.h"
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#include "Common/ColorUtil.h"
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#include "Common/CommonTypes.h"
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#include "Common/Crypto/SHA1.h"
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#include "Common/Logging/Log.h"
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#include "Common/MsgHandler.h"
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#include "Common/StringUtil.h"
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#include "DiscIO/Blob.h"
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#include "DiscIO/DiscExtractor.h"
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#include "DiscIO/DiscUtils.h"
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#include "DiscIO/Enums.h"
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#include "DiscIO/FileSystemGCWii.h"
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#include "DiscIO/Filesystem.h"
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#include "DiscIO/Volume.h"
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namespace DiscIO
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{
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VolumeGC::VolumeGC(std::unique_ptr<BlobReader> reader) : m_reader(std::move(reader))
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{
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ASSERT(m_reader);
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m_file_system = [this]() -> std::unique_ptr<FileSystem> {
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auto file_system = std::make_unique<FileSystemGCWii>(this, PARTITION_NONE);
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return file_system->IsValid() ? std::move(file_system) : nullptr;
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};
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m_converted_banner = [this] { return LoadBannerFile(); };
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}
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VolumeGC::~VolumeGC()
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{
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}
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bool VolumeGC::Read(u64 offset, u64 length, u8* buffer, const Partition& partition) const
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{
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if (partition != PARTITION_NONE)
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return false;
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return m_reader->Read(offset, length, buffer);
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}
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const FileSystem* VolumeGC::GetFileSystem(const Partition& partition) const
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{
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return m_file_system->get();
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}
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std::string VolumeGC::GetGameTDBID(const Partition& partition) const
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{
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// Datel discs for the GameCube can have one of two different game IDs:
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//
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// 1: GNHE5d. (Yes, with a lowercase d.) This game ID is used not only for
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// all kinds of Datel discs, but also for the licensed release NHL Hitz 2002.
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//
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// 2: DTLX01. This game ID is used for a few late Datel releases. Both Action Replay
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// and FreeLoader are known to have been released under this game ID.
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//
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// Since no game ID used for Datel discs uniquely represents one product,
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// never use the game ID of a Datel disc for looking up the title or cover art.
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if (IsDatelDisc())
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return "";
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// Normal case. Just return the usual game ID.
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return GetGameID(partition);
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}
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Region VolumeGC::GetRegion() const
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{
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return RegionCodeToRegion(m_reader->ReadSwapped<u32>(0x458));
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}
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std::map<Language, std::string> VolumeGC::GetShortNames() const
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{
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return m_converted_banner->short_names;
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}
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std::map<Language, std::string> VolumeGC::GetLongNames() const
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{
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return m_converted_banner->long_names;
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}
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std::map<Language, std::string> VolumeGC::GetShortMakers() const
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{
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return m_converted_banner->short_makers;
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}
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std::map<Language, std::string> VolumeGC::GetLongMakers() const
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{
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return m_converted_banner->long_makers;
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}
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std::map<Language, std::string> VolumeGC::GetDescriptions() const
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{
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return m_converted_banner->descriptions;
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}
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std::vector<u32> VolumeGC::GetBanner(u32* width, u32* height) const
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{
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*width = m_converted_banner->image_width;
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*height = m_converted_banner->image_height;
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return m_converted_banner->image_buffer;
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}
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BlobType VolumeGC::GetBlobType() const
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{
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return m_reader->GetBlobType();
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}
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u64 VolumeGC::GetDataSize() const
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{
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return m_reader->GetDataSize();
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}
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DataSizeType VolumeGC::GetDataSizeType() const
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{
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return m_reader->GetDataSizeType();
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}
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u64 VolumeGC::GetRawSize() const
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{
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return m_reader->GetRawSize();
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}
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const BlobReader& VolumeGC::GetBlobReader() const
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{
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return *m_reader;
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}
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Platform VolumeGC::GetVolumeType() const
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{
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return Platform::GameCubeDisc;
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}
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bool VolumeGC::IsDatelDisc() const
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{
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return GetGameID() == "DTLX01" || !GetBootDOLOffset(*this, PARTITION_NONE).has_value();
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}
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std::array<u8, 20> VolumeGC::GetSyncHash() const
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{
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auto context = Common::SHA1::CreateContext();
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AddGamePartitionToSyncHash(context.get());
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return context->Finish();
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}
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VolumeGC::ConvertedGCBanner VolumeGC::LoadBannerFile() const
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{
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GCBanner banner_file;
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const u64 file_size = ReadFile(*this, PARTITION_NONE, "opening.bnr",
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reinterpret_cast<u8*>(&banner_file), sizeof(GCBanner));
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if (file_size < 4)
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{
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WARN_LOG_FMT(DISCIO, "Could not read opening.bnr.");
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return {}; // Return early so that we don't access the uninitialized banner_file.id
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}
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constexpr u32 BNR1_MAGIC = 0x31524e42;
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constexpr u32 BNR2_MAGIC = 0x32524e42;
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bool is_bnr1;
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if (banner_file.id == BNR1_MAGIC && file_size == BNR1_SIZE)
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{
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is_bnr1 = true;
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}
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else if (banner_file.id == BNR2_MAGIC && file_size == BNR2_SIZE)
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{
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is_bnr1 = false;
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}
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else
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{
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WARN_LOG_FMT(DISCIO, "Invalid opening.bnr. Type: {:#0x} Size: {:#0x}", banner_file.id,
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file_size);
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return {};
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}
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return ExtractBannerInformation(banner_file, is_bnr1);
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}
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VolumeGC::ConvertedGCBanner VolumeGC::ExtractBannerInformation(const GCBanner& banner_file,
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bool is_bnr1) const
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{
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ConvertedGCBanner banner;
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u32 number_of_languages = 0;
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Language start_language = Language::Unknown;
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if (is_bnr1) // NTSC
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{
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number_of_languages = 1;
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start_language = GetRegion() == Region::NTSC_J ? Language::Japanese : Language::English;
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}
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else // PAL
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{
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number_of_languages = 6;
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start_language = Language::English;
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}
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banner.image_width = GC_BANNER_WIDTH;
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banner.image_height = GC_BANNER_HEIGHT;
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banner.image_buffer = std::vector<u32>(GC_BANNER_WIDTH * GC_BANNER_HEIGHT);
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Common::Decode5A3Image(banner.image_buffer.data(), banner_file.image, GC_BANNER_WIDTH,
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GC_BANNER_HEIGHT);
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for (u32 i = 0; i < number_of_languages; ++i)
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{
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const GCBannerInformation& info = banner_file.information[i];
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Language language = static_cast<Language>(static_cast<int>(start_language) + i);
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std::string description = DecodeString(info.description);
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if (!description.empty())
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banner.descriptions.emplace(language, description);
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std::string short_name = DecodeString(info.short_name);
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if (!short_name.empty())
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banner.short_names.emplace(language, short_name);
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std::string long_name = DecodeString(info.long_name);
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if (!long_name.empty())
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banner.long_names.emplace(language, long_name);
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std::string short_maker = DecodeString(info.short_maker);
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if (!short_maker.empty())
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banner.short_makers.emplace(language, short_maker);
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std::string long_maker = DecodeString(info.long_maker);
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if (!long_maker.empty())
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banner.long_makers.emplace(language, long_maker);
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}
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return banner;
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}
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VolumeGC::ConvertedGCBanner::ConvertedGCBanner() = default;
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VolumeGC::ConvertedGCBanner::~ConvertedGCBanner() = default;
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} // namespace DiscIO
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