service: mii: Implement figurine database
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@ -596,6 +596,8 @@ add_library(core STATIC
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hle/service/mii/types/ver3_store_data.h
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hle/service/mii/mii.cpp
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hle/service/mii/mii.h
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hle/service/mii/mii_database.cpp
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hle/service/mii/mii_database.h
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hle/service/mii/mii_manager.cpp
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hle/service/mii/mii_manager.h
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hle/service/mii/mii_result.h
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@ -0,0 +1,142 @@
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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "core/hle/service/mii/mii_database.h"
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#include "core/hle/service/mii/mii_result.h"
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#include "core/hle/service/mii/mii_util.h"
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namespace Service::Mii {
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u8 NintendoFigurineDatabase::GetDatabaseLength() const {
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return database_length;
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}
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bool NintendoFigurineDatabase::IsFull() const {
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return database_length >= MaxDatabaseLength;
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}
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StoreData NintendoFigurineDatabase::Get(std::size_t index) const {
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StoreData store_data = miis.at(index);
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// This hack is to make external database dump compatible
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store_data.SetDeviceChecksum();
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return store_data;
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}
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u32 NintendoFigurineDatabase::GetCount(const DatabaseSessionMetadata& metadata) const {
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if (magic == MiiMagic) {
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return GetDatabaseLength();
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}
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u32 mii_count{};
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for (std::size_t index = 0; index < mii_count; ++index) {
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const auto& store_data = Get(index);
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if (!store_data.IsSpecial()) {
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mii_count++;
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}
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}
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return mii_count;
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}
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bool NintendoFigurineDatabase::GetIndexByCreatorId(u32& out_index,
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const Common::UUID& create_id) const {
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for (std::size_t index = 0; index < database_length; ++index) {
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if (miis[index].GetCreateId() == create_id) {
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out_index = static_cast<u32>(index);
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return true;
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}
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}
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return false;
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}
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Result NintendoFigurineDatabase::Move(u32 current_index, u32 new_index) {
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if (current_index == new_index) {
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return ResultNotUpdated;
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}
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const StoreData store_data = miis[current_index];
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if (new_index > current_index) {
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// shift left
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const u32 index_diff = new_index - current_index;
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for (std::size_t i = 0; i < index_diff; i++) {
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miis[current_index + i] = miis[current_index + i + 1];
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}
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} else {
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// shift right
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const u32 index_diff = current_index - new_index;
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for (std::size_t i = 0; i < index_diff; i++) {
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miis[current_index - i] = miis[current_index - i - 1];
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}
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}
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miis[new_index] = store_data;
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crc = GenerateDatabaseCrc();
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return ResultSuccess;
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}
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void NintendoFigurineDatabase::Replace(u32 index, const StoreData& store_data) {
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miis[index] = store_data;
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crc = GenerateDatabaseCrc();
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}
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void NintendoFigurineDatabase::Add(const StoreData& store_data) {
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miis[database_length] = store_data;
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database_length++;
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crc = GenerateDatabaseCrc();
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}
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void NintendoFigurineDatabase::Delete(u32 index) {
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// shift left
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s32 new_database_size = database_length - 1;
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if (static_cast<s32>(index) < new_database_size) {
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for (std::size_t i = index; i < static_cast<std::size_t>(new_database_size); i++) {
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miis[i] = miis[i + 1];
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}
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}
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database_length = static_cast<u8>(new_database_size);
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crc = GenerateDatabaseCrc();
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}
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void NintendoFigurineDatabase::CleanDatabase() {
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memset(miis.data(), 0, sizeof(miis));
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version = 1;
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magic = DatabaseMagic;
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database_length = 0;
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crc = GenerateDatabaseCrc();
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}
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void NintendoFigurineDatabase::CorruptCrc() {
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crc = GenerateDatabaseCrc();
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crc = ~crc;
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}
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Result NintendoFigurineDatabase::CheckIntegrity() {
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if (magic != DatabaseMagic) {
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return ResultInvalidDatabaseSignature;
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}
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if (version != 1) {
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return ResultInvalidDatabaseVersion;
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}
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if (crc != GenerateDatabaseCrc()) {
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return ResultInvalidDatabaseChecksum;
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}
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if (database_length >= MaxDatabaseLength) {
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return ResultInvalidDatabaseLength;
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}
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return ResultSuccess;
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}
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u16 NintendoFigurineDatabase::GenerateDatabaseCrc() {
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return MiiUtil::CalculateCrc16(&magic, sizeof(NintendoFigurineDatabase) - sizeof(crc));
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}
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} // namespace Service::Mii
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@ -0,0 +1,66 @@
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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include "core/hle/result.h"
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#include "core/hle/service/mii/types/store_data.h"
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namespace Service::Mii {
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constexpr std::size_t MaxDatabaseLength{100};
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constexpr u32 MiiMagic{0xa523b78f};
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constexpr u32 DatabaseMagic{0x4244464e}; // NFDB
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class NintendoFigurineDatabase {
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public:
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/// Returns the total mii count.
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u8 GetDatabaseLength() const;
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/// Returns full if database is full.
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bool IsFull() const;
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/// Returns the mii of the specified index.
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StoreData Get(std::size_t index) const;
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/// Returns the total mii count. Ignoring special mii.
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u32 GetCount(const DatabaseSessionMetadata& metadata) const;
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/// Returns the index of a mii. If the mii isn't found returns false.
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bool GetIndexByCreatorId(u32& out_index, const Common::UUID& create_id) const;
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/// Moves the location of a specific mii.
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Result Move(u32 current_index, u32 new_index);
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/// Replaces mii with new data.
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void Replace(u32 index, const StoreData& store_data);
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/// Adds a new mii to the end of the database.
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void Add(const StoreData& store_data);
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/// Removes mii from database and shifts left the remainding data.
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void Delete(u32 index);
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/// Deletes all contents with a fresh database
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void CleanDatabase();
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/// Intentionally sets a bad checksum
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void CorruptCrc();
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/// Returns success if database is valid otherwise returns the corresponding error code.
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Result CheckIntegrity();
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private:
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/// Returns the checksum of the database
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u16 GenerateDatabaseCrc();
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u32 magic{}; // 'NFDB'
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std::array<StoreData, MaxDatabaseLength> miis{};
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u8 version{};
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u8 database_length{};
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u16 crc{};
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};
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static_assert(sizeof(NintendoFigurineDatabase) == 0x1A98,
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"NintendoFigurineDatabase has incorrect size.");
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}; // namespace Service::Mii
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