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Implement basic support of SystemSaveData and Cleanup IFileSystemProxy (#767)

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* Implement basic support of SystemSaveData and Cleanup IFileSystemProxy

- Implement `OpenSystemSaveData` as a `IFileSystem` in `SaveHelper`:
  On real device, system saves data are stored encrypted, and we can't create an empty system save data for now. That's why if a user put his own dump of system save in `RyuFs\nand\system\save\`, we extract content in associated folder and open it as a `IFileSystem`. If the system save data don't exist, a folder is created.

- Cleanup `IFileSystemProxy` by adding a Helper class.

- Implement `GetSavePath` in `VirtualFileSystem` and remove `GetGameSavePath` in `SaveHelper`.

* remove the forgotten I

* Fix align
This commit is contained in:
Ac_K 2019-09-08 23:33:40 +02:00 • committed by Thomas Guillemard
parent 9afb8ad485
commit 1ff89d6482
6 changed files with 280 additions and 195 deletions
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63
Ryujinx.HLE/FileSystem/SaveHelper.cs
View file

@ -1,45 +1,44 @@
using Ryujinx.HLE.HOS;
using LibHac.Fs;
using Ryujinx.HLE.HOS;
using System.IO;
using static Ryujinx.HLE.FileSystem.VirtualFileSystem;
namespace Ryujinx.HLE.FileSystem
{
static class SaveHelper
{
public static string GetSavePath(SaveInfo saveMetaData, ServiceCtx context)
public static IFileSystem OpenSystemSaveData(ServiceCtx context, ulong saveId)
{
string baseSavePath = NandPath;
ulong currentTitleId = saveMetaData.TitleId;
SaveInfo saveInfo = new SaveInfo(0, (long)saveId, SaveDataType.SystemSaveData, SaveSpaceId.NandSystem);
string savePath = context.Device.FileSystem.GetSavePath(context, saveInfo, false);
switch (saveMetaData.SaveSpaceId)
if (File.Exists(savePath))
{
case SaveSpaceId.NandUser:
baseSavePath = UserNandPath;
break;
case SaveSpaceId.NandSystem:
baseSavePath = SystemNandPath;
break;
case SaveSpaceId.SdCard:
baseSavePath = Path.Combine(SdCardPath, "Nintendo");
break;
string tempDirectoryPath = $"{savePath}_temp";
Directory.CreateDirectory(tempDirectoryPath);
IFileSystem outputFolder = new LocalFileSystem(tempDirectoryPath);
using (LocalStorage systemSaveData = new LocalStorage(savePath, FileAccess.Read, FileMode.Open))
{
IFileSystem saveFs = new LibHac.Fs.Save.SaveDataFileSystem(context.Device.System.KeySet, systemSaveData, IntegrityCheckLevel.None, false);
saveFs.CopyFileSystem(outputFolder);
}
File.Delete(savePath);
Directory.Move(tempDirectoryPath, savePath);
}
else
{
if (!Directory.Exists(savePath))
{
Directory.CreateDirectory(savePath);
}
}
baseSavePath = Path.Combine(baseSavePath, "save");
if (saveMetaData.TitleId == 0 && saveMetaData.SaveDataType == SaveDataType.SaveData)
{
currentTitleId = context.Process.TitleId;
}
string saveAccount = saveMetaData.UserId.IsNull ? "savecommon" : saveMetaData.UserId.ToString();
string savePath = Path.Combine(baseSavePath,
saveMetaData.SaveId.ToString("x16"),
saveAccount,
saveMetaData.SaveDataType == SaveDataType.SaveData ? currentTitleId.ToString("x16") : string.Empty);
return savePath;
return new LocalFileSystem(savePath);
}
}
}
}