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-rw-r--r--src/core/CMakeLists.txt2
-rw-r--r--src/core/hle/service/mii/mii_database.cpp142
-rw-r--r--src/core/hle/service/mii/mii_database.h66
3 files changed, 210 insertions, 0 deletions
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index b2dc71d4c..9d22cc945 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -596,6 +596,8 @@ add_library(core STATIC
hle/service/mii/types/ver3_store_data.h
hle/service/mii/mii.cpp
hle/service/mii/mii.h
+ hle/service/mii/mii_database.cpp
+ hle/service/mii/mii_database.h
hle/service/mii/mii_manager.cpp
hle/service/mii/mii_manager.h
hle/service/mii/mii_result.h
diff --git a/src/core/hle/service/mii/mii_database.cpp b/src/core/hle/service/mii/mii_database.cpp
new file mode 100644
index 000000000..0899f0b45
--- /dev/null
+++ b/src/core/hle/service/mii/mii_database.cpp
@@ -0,0 +1,142 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/mii/mii_database.h"
+#include "core/hle/service/mii/mii_result.h"
+#include "core/hle/service/mii/mii_util.h"
+
+namespace Service::Mii {
+
+u8 NintendoFigurineDatabase::GetDatabaseLength() const {
+ return database_length;
+}
+
+bool NintendoFigurineDatabase::IsFull() const {
+ return database_length >= MaxDatabaseLength;
+}
+
+StoreData NintendoFigurineDatabase::Get(std::size_t index) const {
+ StoreData store_data = miis.at(index);
+
+ // This hack is to make external database dump compatible
+ store_data.SetDeviceChecksum();
+
+ return store_data;
+}
+
+u32 NintendoFigurineDatabase::GetCount(const DatabaseSessionMetadata& metadata) const {
+ if (magic == MiiMagic) {
+ return GetDatabaseLength();
+ }
+
+ u32 mii_count{};
+ for (std::size_t index = 0; index < mii_count; ++index) {
+ const auto& store_data = Get(index);
+ if (!store_data.IsSpecial()) {
+ mii_count++;
+ }
+ }
+
+ return mii_count;
+}
+
+bool NintendoFigurineDatabase::GetIndexByCreatorId(u32& out_index,
+ const Common::UUID& create_id) const {
+ for (std::size_t index = 0; index < database_length; ++index) {
+ if (miis[index].GetCreateId() == create_id) {
+ out_index = static_cast<u32>(index);
+ return true;
+ }
+ }
+
+ return false;
+}
+
+Result NintendoFigurineDatabase::Move(u32 current_index, u32 new_index) {
+ if (current_index == new_index) {
+ return ResultNotUpdated;
+ }
+
+ const StoreData store_data = miis[current_index];
+
+ if (new_index > current_index) {
+ // shift left
+ const u32 index_diff = new_index - current_index;
+ for (std::size_t i = 0; i < index_diff; i++) {
+ miis[current_index + i] = miis[current_index + i + 1];
+ }
+ } else {
+ // shift right
+ const u32 index_diff = current_index - new_index;
+ for (std::size_t i = 0; i < index_diff; i++) {
+ miis[current_index - i] = miis[current_index - i - 1];
+ }
+ }
+
+ miis[new_index] = store_data;
+ crc = GenerateDatabaseCrc();
+ return ResultSuccess;
+}
+
+void NintendoFigurineDatabase::Replace(u32 index, const StoreData& store_data) {
+ miis[index] = store_data;
+ crc = GenerateDatabaseCrc();
+}
+
+void NintendoFigurineDatabase::Add(const StoreData& store_data) {
+ miis[database_length] = store_data;
+ database_length++;
+ crc = GenerateDatabaseCrc();
+}
+
+void NintendoFigurineDatabase::Delete(u32 index) {
+ // shift left
+ s32 new_database_size = database_length - 1;
+ if (static_cast<s32>(index) < new_database_size) {
+ for (std::size_t i = index; i < static_cast<std::size_t>(new_database_size); i++) {
+ miis[i] = miis[i + 1];
+ }
+ }
+
+ database_length = static_cast<u8>(new_database_size);
+ crc = GenerateDatabaseCrc();
+}
+
+void NintendoFigurineDatabase::CleanDatabase() {
+ memset(miis.data(), 0, sizeof(miis));
+ version = 1;
+ magic = DatabaseMagic;
+ database_length = 0;
+ crc = GenerateDatabaseCrc();
+}
+
+void NintendoFigurineDatabase::CorruptCrc() {
+ crc = GenerateDatabaseCrc();
+ crc = ~crc;
+}
+
+Result NintendoFigurineDatabase::CheckIntegrity() {
+ if (magic != DatabaseMagic) {
+ return ResultInvalidDatabaseSignature;
+ }
+
+ if (version != 1) {
+ return ResultInvalidDatabaseVersion;
+ }
+
+ if (crc != GenerateDatabaseCrc()) {
+ return ResultInvalidDatabaseChecksum;
+ }
+
+ if (database_length >= MaxDatabaseLength) {
+ return ResultInvalidDatabaseLength;
+ }
+
+ return ResultSuccess;
+}
+
+u16 NintendoFigurineDatabase::GenerateDatabaseCrc() {
+ return MiiUtil::CalculateCrc16(&magic, sizeof(NintendoFigurineDatabase) - sizeof(crc));
+}
+
+} // namespace Service::Mii
diff --git a/src/core/hle/service/mii/mii_database.h b/src/core/hle/service/mii/mii_database.h
new file mode 100644
index 000000000..01764999f
--- /dev/null
+++ b/src/core/hle/service/mii/mii_database.h
@@ -0,0 +1,66 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/result.h"
+#include "core/hle/service/mii/types/store_data.h"
+
+namespace Service::Mii {
+
+constexpr std::size_t MaxDatabaseLength{100};
+constexpr u32 MiiMagic{0xa523b78f};
+constexpr u32 DatabaseMagic{0x4244464e}; // NFDB
+
+class NintendoFigurineDatabase {
+public:
+ /// Returns the total mii count.
+ u8 GetDatabaseLength() const;
+
+ /// Returns full if database is full.
+ bool IsFull() const;
+
+ /// Returns the mii of the specified index.
+ StoreData Get(std::size_t index) const;
+
+ /// Returns the total mii count. Ignoring special mii.
+ u32 GetCount(const DatabaseSessionMetadata& metadata) const;
+
+ /// Returns the index of a mii. If the mii isn't found returns false.
+ bool GetIndexByCreatorId(u32& out_index, const Common::UUID& create_id) const;
+
+ /// Moves the location of a specific mii.
+ Result Move(u32 current_index, u32 new_index);
+
+ /// Replaces mii with new data.
+ void Replace(u32 index, const StoreData& store_data);
+
+ /// Adds a new mii to the end of the database.
+ void Add(const StoreData& store_data);
+
+ /// Removes mii from database and shifts left the remainding data.
+ void Delete(u32 index);
+
+ /// Deletes all contents with a fresh database
+ void CleanDatabase();
+
+ /// Intentionally sets a bad checksum
+ void CorruptCrc();
+
+ /// Returns success if database is valid otherwise returns the corresponding error code.
+ Result CheckIntegrity();
+
+private:
+ /// Returns the checksum of the database
+ u16 GenerateDatabaseCrc();
+
+ u32 magic{}; // 'NFDB'
+ std::array<StoreData, MaxDatabaseLength> miis{};
+ u8 version{};
+ u8 database_length{};
+ u16 crc{};
+};
+static_assert(sizeof(NintendoFigurineDatabase) == 0x1A98,
+ "NintendoFigurineDatabase has incorrect size.");
+
+}; // namespace Service::Mii
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