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using System;
using System.IO;
namespace Ryujinx.HLE
{
class VirtualFileSystem : IDisposable
{
private const string BasePath = "RyuFs";
private const string NandPath = "nand";
private const string SdCardPath = "sdmc";
public Stream RomFs { get; private set; }
public void LoadRomFs(string FileName)
{
RomFs = new FileStream(FileName, FileMode.Open, FileAccess.Read);
}
public string GetFullPath(string BasePath, string FileName)
{
if (FileName.StartsWith("//"))
{
FileName = FileName.Substring(2);
}
else if (FileName.StartsWith('/'))
{
FileName = FileName.Substring(1);
}
else
{
return null;
}
string FullPath = Path.GetFullPath(Path.Combine(BasePath, FileName));
if (!FullPath.StartsWith(GetBasePath()))
{
return null;
}
return FullPath;
}
public string GetSdCardPath() => MakeDirAndGetFullPath(SdCardPath);
public string GetGameSavesPath() => MakeDirAndGetFullPath(NandPath);
private string MakeDirAndGetFullPath(string Dir)
{
string FullPath = Path.Combine(GetBasePath(), Dir);
if (!Directory.Exists(FullPath))
{
Directory.CreateDirectory(FullPath);
}
return FullPath;
}
public DriveInfo GetDrive()
{
return new DriveInfo(Path.GetPathRoot(GetBasePath()));
}
public string GetBasePath()
{
string AppDataPath = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
return Path.Combine(AppDataPath, BasePath);
}
public void Dispose()
{
Dispose(true);
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
RomFs?.Dispose();
}
}
}
}
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