mirror of
https://github.com/Lime3DS/Lime3DS
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226 lines
8.8 KiB
C++
226 lines
8.8 KiB
C++
// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <algorithm>
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#include "core/hle/service/fs/archive.h"
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#include "core/hle/service/service.h"
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#include "core/hle/service/cfg/cfg.h"
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#include "core/hle/service/cfg/cfg_i.h"
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#include "core/hle/service/cfg/cfg_s.h"
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#include "core/hle/service/cfg/cfg_u.h"
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namespace Service {
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namespace CFG {
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const u64 CFG_SAVE_ID = 0x00010017;
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const u64 CONSOLE_UNIQUE_ID = 0xDEADC0DE;
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const ConsoleModelInfo CONSOLE_MODEL = { NINTENDO_3DS_XL, { 0, 0, 0 } };
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const u8 CONSOLE_LANGUAGE = LANGUAGE_EN;
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const char CONSOLE_USERNAME[0x14] = "CITRA";
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/// This will be initialized in CFGInit, and will be used when creating the block
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UsernameBlock CONSOLE_USERNAME_BLOCK;
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/// TODO(Subv): Find out what this actually is
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const u8 SOUND_OUTPUT_MODE = 2;
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const u8 UNITED_STATES_COUNTRY_ID = 49;
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/// TODO(Subv): Find what the other bytes are
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const ConsoleCountryInfo COUNTRY_INFO = { { 0, 0, 0 }, UNITED_STATES_COUNTRY_ID };
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/**
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* TODO(Subv): Find out what this actually is, these values fix some NaN uniforms in some games,
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* for example Nintendo Zone
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* Thanks Normmatt for providing this information
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*/
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const std::array<float, 8> STEREO_CAMERA_SETTINGS = {
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62.0f, 289.0f, 76.80000305175781f, 46.08000183105469f,
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10.0f, 5.0f, 55.58000183105469f, 21.56999969482422f
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};
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static const u32 CONFIG_SAVEFILE_SIZE = 0x8000;
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static std::array<u8, CONFIG_SAVEFILE_SIZE> cfg_config_file_buffer;
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static Service::FS::ArchiveHandle cfg_system_save_data_archive;
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static const std::vector<u8> cfg_system_savedata_id = { 0x00, 0x00, 0x00, 0x00, 0x17, 0x00, 0x01, 0x00 };
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ResultCode GetConfigInfoBlock(u32 block_id, u32 size, u32 flag, u8* output) {
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// Read the header
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SaveFileConfig* config = reinterpret_cast<SaveFileConfig*>(cfg_config_file_buffer.data());
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auto itr = std::find_if(std::begin(config->block_entries), std::end(config->block_entries),
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[&](const SaveConfigBlockEntry& entry) {
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return entry.block_id == block_id && (entry.flags & flag);
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});
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if (itr == std::end(config->block_entries)) {
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LOG_ERROR(Service_CFG, "Config block %u with flags %u was not found", block_id, flag);
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return ResultCode(ErrorDescription::NotFound, ErrorModule::Config, ErrorSummary::WrongArgument, ErrorLevel::Permanent);
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}
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if (itr->size != size) {
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LOG_ERROR(Service_CFG, "Invalid size %u for config block %u with flags %u", size, block_id, flag);
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return ResultCode(ErrorDescription::InvalidSize, ErrorModule::Config, ErrorSummary::WrongArgument, ErrorLevel::Permanent);
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}
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// The data is located in the block header itself if the size is less than 4 bytes
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if (itr->size <= 4)
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memcpy(output, &itr->offset_or_data, itr->size);
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else
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memcpy(output, &cfg_config_file_buffer[itr->offset_or_data], itr->size);
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return RESULT_SUCCESS;
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}
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ResultCode CreateConfigInfoBlk(u32 block_id, u16 size, u16 flags, const u8* data) {
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SaveFileConfig* config = reinterpret_cast<SaveFileConfig*>(cfg_config_file_buffer.data());
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if (config->total_entries >= CONFIG_FILE_MAX_BLOCK_ENTRIES)
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return ResultCode(-1); // TODO(Subv): Find the right error code
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// Insert the block header with offset 0 for now
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config->block_entries[config->total_entries] = { block_id, 0, size, flags };
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if (size > 4) {
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u32 offset = config->data_entries_offset;
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// Perform a search to locate the next offset for the new data
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// use the offset and size of the previous block to determine the new position
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for (int i = config->total_entries - 1; i >= 0; --i) {
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// Ignore the blocks that don't have a separate data offset
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if (config->block_entries[i].size > 4) {
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offset = config->block_entries[i].offset_or_data +
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config->block_entries[i].size;
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break;
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}
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}
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config->block_entries[config->total_entries].offset_or_data = offset;
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// Write the data at the new offset
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memcpy(&cfg_config_file_buffer[offset], data, size);
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}
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else {
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// The offset_or_data field in the header contains the data itself if it's 4 bytes or less
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memcpy(&config->block_entries[config->total_entries].offset_or_data, data, size);
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}
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++config->total_entries;
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return RESULT_SUCCESS;
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}
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ResultCode DeleteConfigNANDSaveFile() {
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FileSys::Path path("config");
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return Service::FS::DeleteFileFromArchive(cfg_system_save_data_archive, path);
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}
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ResultCode UpdateConfigNANDSavegame() {
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FileSys::Mode mode = {};
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mode.write_flag = 1;
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mode.create_flag = 1;
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FileSys::Path path("config");
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auto config_result = Service::FS::OpenFileFromArchive(cfg_system_save_data_archive, path, mode);
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ASSERT_MSG(config_result.Succeeded(), "could not open file");
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auto config = config_result.MoveFrom();
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config->backend->Write(0, CONFIG_SAVEFILE_SIZE, 1, cfg_config_file_buffer.data());
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return RESULT_SUCCESS;
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}
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ResultCode FormatConfig() {
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ResultCode res = DeleteConfigNANDSaveFile();
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if (!res.IsSuccess())
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return res;
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// Delete the old data
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cfg_config_file_buffer.fill(0);
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// Create the header
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SaveFileConfig* config = reinterpret_cast<SaveFileConfig*>(cfg_config_file_buffer.data());
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// This value is hardcoded, taken from 3dbrew, verified by hardware, it's always the same value
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config->data_entries_offset = 0x455C;
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// Insert the default blocks
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res = CreateConfigInfoBlk(0x00050005, sizeof(STEREO_CAMERA_SETTINGS), 0xE,
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reinterpret_cast<const u8*>(STEREO_CAMERA_SETTINGS.data()));
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if (!res.IsSuccess())
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return res;
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res = CreateConfigInfoBlk(0x00090001, sizeof(CONSOLE_UNIQUE_ID), 0xE,
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reinterpret_cast<const u8*>(&CONSOLE_UNIQUE_ID));
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if (!res.IsSuccess())
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return res;
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res = CreateConfigInfoBlk(0x000F0004, sizeof(CONSOLE_MODEL), 0x8,
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reinterpret_cast<const u8*>(&CONSOLE_MODEL));
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if (!res.IsSuccess())
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return res;
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res = CreateConfigInfoBlk(0x000A0002, sizeof(CONSOLE_LANGUAGE), 0xA, &CONSOLE_LANGUAGE);
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if (!res.IsSuccess())
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return res;
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res = CreateConfigInfoBlk(0x00070001, sizeof(SOUND_OUTPUT_MODE), 0xE, &SOUND_OUTPUT_MODE);
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if (!res.IsSuccess())
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return res;
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res = CreateConfigInfoBlk(0x000B0000, sizeof(COUNTRY_INFO), 0xE,
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reinterpret_cast<const u8*>(&COUNTRY_INFO));
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if (!res.IsSuccess())
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return res;
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res = CreateConfigInfoBlk(0x000A0000, sizeof(CONSOLE_USERNAME_BLOCK), 0xE,
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reinterpret_cast<const u8*>(&CONSOLE_USERNAME_BLOCK));
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if (!res.IsSuccess())
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return res;
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// Save the buffer to the file
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res = UpdateConfigNANDSavegame();
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if (!res.IsSuccess())
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return res;
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return RESULT_SUCCESS;
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}
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void Init() {
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AddService(new CFG_I_Interface);
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AddService(new CFG_S_Interface);
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AddService(new CFG_U_Interface);
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// Open the SystemSaveData archive 0x00010017
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FileSys::Path archive_path(cfg_system_savedata_id);
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auto archive_result = Service::FS::OpenArchive(Service::FS::ArchiveIdCode::SystemSaveData, archive_path);
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// If the archive didn't exist, create the files inside
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if (archive_result.Code().description == ErrorDescription::FS_NotFormatted) {
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// Format the archive to create the directories
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Service::FS::FormatArchive(Service::FS::ArchiveIdCode::SystemSaveData, archive_path);
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// Open it again to get a valid archive now that the folder exists
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archive_result = Service::FS::OpenArchive(Service::FS::ArchiveIdCode::SystemSaveData, archive_path);
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}
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ASSERT_MSG(archive_result.Succeeded(), "Could not open the CFG SystemSaveData archive!");
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cfg_system_save_data_archive = *archive_result;
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FileSys::Path config_path("config");
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FileSys::Mode open_mode = {};
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open_mode.read_flag = 1;
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auto config_result = Service::FS::OpenFileFromArchive(*archive_result, config_path, open_mode);
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// Read the file if it already exists
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if (config_result.Succeeded()) {
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auto config = config_result.MoveFrom();
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config->backend->Read(0, CONFIG_SAVEFILE_SIZE, cfg_config_file_buffer.data());
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return;
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}
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// Initialize the Username block
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// TODO(Subv): Initialize this directly in the variable when MSVC supports char16_t string literals
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CONSOLE_USERNAME_BLOCK.ng_word = 0;
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CONSOLE_USERNAME_BLOCK.zero = 0;
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// Copy string to buffer and pad with zeros at the end
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auto size = Common::UTF8ToUTF16(CONSOLE_USERNAME).copy(CONSOLE_USERNAME_BLOCK.username, 0x14);
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std::fill(std::begin(CONSOLE_USERNAME_BLOCK.username) + size,
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std::end(CONSOLE_USERNAME_BLOCK.username), 0);
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FormatConfig();
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}
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void Shutdown() {
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}
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} // namespace CFG
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} // namespace Service
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