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Archives: Implemented ExtSaveData and SharedExtSaveData

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They will be stored in /extsavedata/SDMC and /extsavedata/NAND respectively.
Also redirect some APT_A functions to their APT_U equivalents.
Implemented the gamecoin.dat file in SharedExtSaveData in the PTM module.
Implemented formatting the savegame.
Retake a previous savegame if it exists instead of reporting them as not formatted every time a game is loaded.
This commit is contained in:
Subv
2014-12-29 13:04:37 -05:00
parent 3d14eb2853
commit 2c89d4d5cd
17 changed files with 268 additions and 60 deletions
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47
src/core/hle/service/ptm_u.cpp
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@ -3,6 +3,8 @@
// Refer to the license.txt file included.
#include "common/log.h"
#include "common/make_unique.h"
#include "core/file_sys/archive_extsavedata.h"
#include "core/hle/hle.h"
#include "core/hle/service/ptm_u.h"
@ -11,6 +13,24 @@
namespace PTM_U {
/**
* Represents the gamecoin file structure in the SharedExtData archive
* More information in 3dbrew (http://www.3dbrew.org/wiki/Extdata#Shared_Extdata_0xf000000b_gamecoin.dat)
*/
struct GameCoin {
u32 magic; ///< Magic number: 0x4F00
u16 total_coins; ///< Total Play Coins
u16 total_coins_on_date; ///< Total Play Coins obtained on the date stored below.
u32 step_count; ///< Total step count at the time a new Play Coin was obtained.
u32 last_step_count; ///< Step count for the day the last Play Coin was obtained
u16 year;
u8 month;
u8 day;
};
static const GameCoin default_game_coin = { 0x4F00, 42, 0, 0, 0, 2014, 12, 29 };
static std::unique_ptr<FileSys::Archive_ExtSaveData> ptm_shared_extsavedata;
static const std::vector<u8> ptm_shared_extdata_id = {0, 0, 0, 0, 0x0B, 0, 0, 0xF0, 0, 0, 0, 0};
/// Charge levels used by PTM functions
enum class ChargeLevels : u32 {
CriticalBattery = 1,
@ -120,6 +140,33 @@ const Interface::FunctionInfo FunctionTable[] = {
Interface::Interface() {
Register(FunctionTable, ARRAY_SIZE(FunctionTable));
// Create the SharedExtSaveData archive 0xF000000B and the gamecoin.dat file
// TODO(Subv): In the future we should use the FS service to query this archive
std::string extsavedata_directory = FileUtil::GetUserPath(D_EXTSAVEDATA);
ptm_shared_extsavedata = Common::make_unique<FileSys::Archive_ExtSaveData>(extsavedata_directory);
if (!ptm_shared_extsavedata->Initialize()) {
LOG_CRITICAL(Service_PTM, "Could not initialize ExtSaveData archive for the PTM:U service");
return;
}
FileSys::Path archive_path(ptm_shared_extdata_id);
ResultCode result = ptm_shared_extsavedata->Open(archive_path);
// If the archive didn't exist, create the files inside
if (result.description == ErrorDescription::FS_NotFormatted) {
// Format the archive to clear the directories
ptm_shared_extsavedata->Format(archive_path);
// Open it again to get a valid archive now that the folder exists
ptm_shared_extsavedata->Open(archive_path);
FileSys::Path gamecoin_path("gamecoin.dat");
FileSys::Mode open_mode = {};
open_mode.write_flag = 1;
open_mode.create_flag = 1;
// Open the file and write the default gamecoin information
auto gamecoin = ptm_shared_extsavedata->OpenFile(gamecoin_path, open_mode);
if (gamecoin != nullptr) {
gamecoin->Write(0, sizeof(GameCoin), 1, reinterpret_cast<const u8*>(&default_game_coin));
gamecoin->Close();
}
}
}
} // namespace