public static ParamSfo ReadFrom(Stream stream)
{
if (!stream.CanSeek)
{
throw new ArgumentException("Stream must be seekable", nameof(stream));
}
stream.Seek(0, SeekOrigin.Begin);
var result = new ParamSfo();
using (var reader = new BinaryReader(stream, new UTF8Encoding(false), true))
{
result.Magic = new string(reader.ReadChars(4));
if (result.Magic != "\0PSF")
{
throw new FormatException("Not a valid SFO file");
}
result.MajorVersion = reader.ReadByte();
result.MinorVersion = reader.ReadByte();
result.Reserved1 = reader.ReadInt16();
result.KeysOffset = reader.ReadInt32();
result.ValuesOffset = reader.ReadInt32();
result.ItemCount = reader.ReadInt32();
result.Items = new List <ParamSfoEntry>(result.ItemCount);
for (var i = 0; i < result.ItemCount; i++)
{
result.Items.Add(ParamSfoEntry.Read(reader, result, i));
}
}
return(result);
}
private void reloadButton_Click(object sender, EventArgs e)
{
saveButton.Enabled = false;
titleBox.TextChanged -= titleBox_TextChanged;
if (string.IsNullOrEmpty(filenameBox.Text))
{
return;
}
if (!File.Exists(filenameBox.Text))
{
MessageBox.Show("Please check the path to param.sfo", "File not found", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
using (var stream = File.Open(filenameBox.Text, FileMode.Open, FileAccess.Read, FileShare.Read))
paramSfo = ParamSfo.ReadFrom(stream);
titleEntry = paramSfo.Items.FirstOrDefault(i => i.Key == "TITLE");
if (titleEntry == null)
{
paramSfo = null;
MessageBox.Show("Title entry not found", "Unsupported param.sfo file", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
titleBox.Text = titleEntry.StringValue;
titleBox.Focus();
titleBox.TextChanged += titleBox_TextChanged;
}
public static ParamSfoEntry Read(BinaryReader reader, ParamSfo paramSfo, int itemNumber)
{
const int indexOffset = 0x14;
const int indexEntryLength = 0x10;
reader.BaseStream.Seek(indexOffset + indexEntryLength * itemNumber, SeekOrigin.Begin);
var result = new ParamSfoEntry();
result.KeyOffset = reader.ReadUInt16();
result.ValueFormat = (EntryFormat)reader.ReadUInt16();
result.ValueLength = reader.ReadInt32();
result.ValueMaxLength = reader.ReadInt32();
result.ValueOffset = reader.ReadInt32();
reader.BaseStream.Seek(paramSfo.KeysOffset + result.KeyOffset, SeekOrigin.Begin);
byte tmp;
var sb = new StringBuilder(32);
while ((tmp = reader.ReadByte()) != 0)
{
sb.Append((char)tmp);
}
result.Key = sb.ToString();
reader.BaseStream.Seek(paramSfo.ValuesOffset + result.ValueOffset, SeekOrigin.Begin);
result.BinaryValue = reader.ReadBytes(result.ValueMaxLength);
return(result);
}
private void filenameBox_TextChanged(object sender, EventArgs e)
{
saveButton.Enabled = false;
paramSfo = null;
titleEntry = null;
}