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Diffstat (limited to 'src/core/hle/service/cfg/cfg.cpp')
| -rw-r--r-- | src/core/hle/service/cfg/cfg.cpp | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/src/core/hle/service/cfg/cfg.cpp b/src/core/hle/service/cfg/cfg.cpp new file mode 100644 index 00000000..d41e1528 --- /dev/null +++ b/src/core/hle/service/cfg/cfg.cpp @@ -0,0 +1,204 @@ +// Copyright 2014 Citra Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "common/log.h" +#include "common/make_unique.h" +#include "core/file_sys/archive_systemsavedata.h" +#include "core/hle/service/cfg/cfg.h" + +namespace Service { +namespace CFG { + +const u64 CFG_SAVE_ID = 0x00010017; +const u64 CONSOLE_UNIQUE_ID = 0xDEADC0DE; +const ConsoleModelInfo CONSOLE_MODEL = { NINTENDO_3DS_XL, 0, 0, 0 }; +const u8 CONSOLE_LANGUAGE = LANGUAGE_EN; +const char CONSOLE_USERNAME[0x14] = "CITRA"; +/// This will be initialized in CFGInit, and will be used when creating the block +UsernameBlock CONSOLE_USERNAME_BLOCK; +/// TODO(Subv): Find out what this actually is +const u8 SOUND_OUTPUT_MODE = 2; +const u8 UNITED_STATES_COUNTRY_ID = 49; +/// TODO(Subv): Find what the other bytes are +const ConsoleCountryInfo COUNTRY_INFO = { 0, 0, 0, UNITED_STATES_COUNTRY_ID }; + +/** + * TODO(Subv): Find out what this actually is, these values fix some NaN uniforms in some games, + * for example Nintendo Zone + * Thanks Normmatt for providing this information + */ +const std::array<float, 8> STEREO_CAMERA_SETTINGS = { + 62.0f, 289.0f, 76.80000305175781f, 46.08000183105469f, + 10.0f, 5.0f, 55.58000183105469f, 21.56999969482422f +}; + +const u32 CONFIG_SAVEFILE_SIZE = 0x8000; +std::array<u8, CONFIG_SAVEFILE_SIZE> cfg_config_file_buffer = {}; + +static std::unique_ptr<FileSys::Archive_SystemSaveData> cfg_system_save_data; + +ResultCode GetConfigInfoBlock(u32 block_id, u32 size, u32 flag, u8* output) { + // Read the header + SaveFileConfig* config = reinterpret_cast<SaveFileConfig*>(cfg_config_file_buffer.data()); + + auto itr = std::find_if(std::begin(config->block_entries), std::end(config->block_entries), + [&](const SaveConfigBlockEntry& entry) { + return entry.block_id == block_id && entry.size == size && (entry.flags & flag); + }); + + if (itr == std::end(config->block_entries)) { + LOG_ERROR(Service_CFG, "Config block %u with size %u and flags %u not found", block_id, size, flag); + return ResultCode(-1); // TODO(Subv): Find the correct error code + } + + // The data is located in the block header itself if the size is less than 4 bytes + if (itr->size <= 4) + memcpy(output, &itr->offset_or_data, itr->size); + else + memcpy(output, &cfg_config_file_buffer[itr->offset_or_data], itr->size); + + return RESULT_SUCCESS; +} + +ResultCode CreateConfigInfoBlk(u32 block_id, u32 size, u32 flags, const u8* data) { + SaveFileConfig* config = reinterpret_cast<SaveFileConfig*>(cfg_config_file_buffer.data()); + if (config->total_entries >= CONFIG_FILE_MAX_BLOCK_ENTRIES) + return ResultCode(-1); // TODO(Subv): Find the right error code + + // Insert the block header with offset 0 for now + config->block_entries[config->total_entries] = { block_id, 0, size, flags }; + if (size > 4) { + s32 total_entries = config->total_entries - 1; + u32 offset = config->data_entries_offset; + // Perform a search to locate the next offset for the new data + // use the offset and size of the previous block to determine the new position + while (total_entries >= 0) { + // Ignore the blocks that don't have a separate data offset + if (config->block_entries[total_entries].size > 4) { + offset = config->block_entries[total_entries].offset_or_data + + config->block_entries[total_entries].size; + break; + } + + --total_entries; + } + + config->block_entries[config->total_entries].offset_or_data = offset; + + // Write the data at the new offset + memcpy(&cfg_config_file_buffer[offset], data, size); + } + else { + // The offset_or_data field in the header contains the data itself if it's 4 bytes or less + memcpy(&config->block_entries[config->total_entries].offset_or_data, data, size); + } + + ++config->total_entries; + return RESULT_SUCCESS; +} + +ResultCode DeleteConfigNANDSaveFile() { + FileSys::Path path("config"); + if (cfg_system_save_data->DeleteFile(path)) + return RESULT_SUCCESS; + return ResultCode(-1); // TODO(Subv): Find the right error code +} + +ResultCode UpdateConfigNANDSavegame() { + FileSys::Mode mode = {}; + mode.write_flag = 1; + mode.create_flag = 1; + FileSys::Path path("config"); + auto file = cfg_system_save_data->OpenFile(path, mode); + _assert_msg_(Service_CFG, file != nullptr, "could not open file"); + file->Write(0, CONFIG_SAVEFILE_SIZE, 1, cfg_config_file_buffer.data()); + return RESULT_SUCCESS; +} + +ResultCode FormatConfig() { + ResultCode res = DeleteConfigNANDSaveFile(); + if (!res.IsSuccess()) + return res; + // Delete the old data + std::fill(cfg_config_file_buffer.begin(), cfg_config_file_buffer.end(), 0); + // Create the header + SaveFileConfig* config = reinterpret_cast<SaveFileConfig*>(cfg_config_file_buffer.data()); + // This value is hardcoded, taken from 3dbrew, verified by hardware, it's always the same value + config->data_entries_offset = 0x455C; + // Insert the default blocks + res = CreateConfigInfoBlk(0x00050005, sizeof(STEREO_CAMERA_SETTINGS), 0xE, + reinterpret_cast<const u8*>(STEREO_CAMERA_SETTINGS.data())); + if (!res.IsSuccess()) + return res; + res = CreateConfigInfoBlk(0x00090001, sizeof(CONSOLE_UNIQUE_ID), 0xE, + reinterpret_cast<const u8*>(&CONSOLE_UNIQUE_ID)); + if (!res.IsSuccess()) + return res; + res = CreateConfigInfoBlk(0x000F0004, sizeof(CONSOLE_MODEL), 0x8, + reinterpret_cast<const u8*>(&CONSOLE_MODEL)); + if (!res.IsSuccess()) + return res; + res = CreateConfigInfoBlk(0x000A0002, sizeof(CONSOLE_LANGUAGE), 0xA, &CONSOLE_LANGUAGE); + if (!res.IsSuccess()) + return res; + res = CreateConfigInfoBlk(0x00070001, sizeof(SOUND_OUTPUT_MODE), 0xE, &SOUND_OUTPUT_MODE); + if (!res.IsSuccess()) + return res; + res = CreateConfigInfoBlk(0x000B0000, sizeof(COUNTRY_INFO), 0xE, + reinterpret_cast<const u8*>(&COUNTRY_INFO)); + if (!res.IsSuccess()) + return res; + res = CreateConfigInfoBlk(0x000A0000, sizeof(CONSOLE_USERNAME_BLOCK), 0xE, + reinterpret_cast<const u8*>(&CONSOLE_USERNAME_BLOCK)); + if (!res.IsSuccess()) + return res; + // Save the buffer to the file + res = UpdateConfigNANDSavegame(); + if (!res.IsSuccess()) + return res; + return RESULT_SUCCESS; +} + +void CFGInit() { + // TODO(Subv): In the future we should use the FS service to query this archive, + // currently it is not possible because you can only have one open archive of the same type at any time + std::string syssavedata_directory = FileUtil::GetUserPath(D_SYSSAVEDATA_IDX); + cfg_system_save_data = Common::make_unique<FileSys::Archive_SystemSaveData>(syssavedata_directory, + CFG_SAVE_ID); + if (!cfg_system_save_data->Initialize()) { + LOG_CRITICAL(Service_CFG, "Could not initialize SystemSaveData archive for the CFG:U service"); + return; + } + + // TODO(Subv): All this code should be moved to cfg:i, + // it's only here because we do not currently emulate the lower level code that uses that service + // Try to open the file in read-only mode to check its existence + FileSys::Mode mode = {}; + mode.read_flag = 1; + FileSys::Path path("config"); + auto file = cfg_system_save_data->OpenFile(path, mode); + + // Load the config if it already exists + if (file != nullptr) { + file->Read(0, CONFIG_SAVEFILE_SIZE, cfg_config_file_buffer.data()); + return; + } + + // Initialize the Username block + // TODO(Subv): Initialize this directly in the variable when MSVC supports char16_t string literals + CONSOLE_USERNAME_BLOCK.ng_word = 0; + CONSOLE_USERNAME_BLOCK.zero = 0; + // Copy string to buffer and pad with zeros at the end + auto size = Common::UTF8ToUTF16(CONSOLE_USERNAME).copy(CONSOLE_USERNAME_BLOCK.username, 0x14); + std::fill(std::begin(CONSOLE_USERNAME_BLOCK.username) + size, + std::end(CONSOLE_USERNAME_BLOCK.username), 0); + FormatConfig(); +} + +void CFGShutdown() { + +} + +} // namespace CFG +} // namespace Service |