private void ReadBytesAndAssertExpected(byte[] bytes, int expected)
{
using (var memoryStream = new MemoryStream(bytes))
{
using (BinaryReader reader = new BinaryReader(memoryStream))
{
var actual = reader.ReadBytesAsInt(bytes.Length);
Assert.AreEqual(expected, actual);
}
}
}
public static S3MFile Parse(string path)
{
FileStream stream = new FileStream(path, FileMode.Open);
using (BinaryReader reader = new BinaryReader(stream))
{
S3MFile file = new S3MFile();
file.Name = ReadFileName(reader);
CheckStreamPosition(stream, 28);
// skip one byte (it's always 1A)
stream.ReadByte();
file.Type = reader.ReadBytesAsInt(1);
CheckStreamPosition(stream, 30);
// skip to next row
stream.Seek(2, SeekOrigin.Current);
CheckStreamPosition(stream, 0x20);
//file.OrderCount = ReadByteAsInt(reader);
file.OrderCount = reader.ReadInt16();
file.InstrumentCount = reader.ReadInt16();
file.PatternCount = reader.ReadInt16();
// skip flags
reader.ReadInt16();
// skip version info
reader.ReadInt16();
// skip file format info
reader.ReadInt16();
ReadSCRM(reader);
CheckStreamPosition(stream, 0x30);
file.GlobalVolume = reader.ReadBytesAsInt(1);
file.InitialSpeed = reader.ReadBytesAsInt(1);
file.InitialTempo = reader.ReadBytesAsInt(1);
file.MasterVolume = reader.ReadBytesAsInt(1);
file.UltraClickRemoval = reader.ReadBytesAsInt(1);
file.LoadChannelPanSettings = reader.ReadBytesAsInt(1);
stream.Seek(0x40, SeekOrigin.Begin);
file.ChannelSettings = ReadByteArrayAsIntArray(32, reader);
file.Orders = ReadByteArrayAsIntArray(file.OrderCount, reader);
file.InstrumentPointers = ReadParapointers(file.InstrumentCount, reader);
file.PatternPointers = ReadParapointers(file.PatternCount, reader);
file.Patterns.AddRange(ReadPatterns(file.PatternPointers, stream, reader));
return file;
}
}
