/// <summary>
/// Initializes a new instance of the SysExMessage class with the
/// specified system exclusive type and data.
/// </summary>
/// <param name="type">
/// The type of system exclusive message.
/// </param>
/// <param name="data">
/// The system exclusive data.
/// </param>
public SysExMessage(SysExType type, byte[] data)
{
this.type = type;
// If this is a regular system exclusive message.
if (this.type == SysExType.Start)
{
// Create storage for message data which includes an extra byte
// for the status value.
message = new StringBuilder(data.Length + 1);
message.Length = message.Capacity;
// Store status value.
message[0] = (char)this.type;
}
// Else this is a continuation message or an escaped message.
else
{
message = new StringBuilder(data.Length);
}
// Copy data into message.
for (int i = 0; i < data.Length; i++)
{
this[i] = data[i];
}
}
/// <summary>
/// Initializes a new instance of the SysExMessage class with the
/// specified system exclusive type and data.
/// </summary>
/// <param name="type">
/// The type of system exclusive message.
/// </param>
/// <param name="data">
/// The system exclusive data.
/// </param>
public SysExMessage(SysExType type, byte[] data)
{
this.type = type;
// If this is a regular system exclusive message.
if(this.type == SysExType.Start)
{
// Create storage for message data which includes an extra byte
// for the status value.
message = new StringBuilder(data.Length + 1);
message.Length = message.Capacity;
// Store status value.
message[0] = (char)this.type;
}
// Else this is a continuation message or an escaped message.
else
{
message = new StringBuilder(data.Length);
}
// Copy data into message.
for(int i = 0; i < data.Length; i++)
{
this[i] = data[i];
}
}
/// <summary>
/// Initializes a new instance of the SysExMessage class with
/// another instance of the SysExMessage class.
/// </summary>
/// <param name="message">
/// The SysExMessage instance to use for initialization.
/// </param>
public SysExMessage(SysExMessage message)
{
type = message.type;
this.message = new StringBuilder(message.Message);
}
/// <summary>
/// Initializes a new instance of the SysExMessage class with
/// another instance of the SysExMessage class.
/// </summary>
/// <param name="message">
/// The SysExMessage instance to use for initialization.
/// </param>
public SysExMessage(SysExMessage message)
{
type = message.type;
this.message = new StringBuilder(message.Message);
}
/// <summary>
/// Reads the data for the next track from the Midi file.
/// </summary>
/// <param name="trackNum">
/// The track number.
/// </param>
private void ReadNextTrack(int trackNum)
{
MetaType metaType = MetaType.TrackName;
int status = 0;
int runningStatus = 0;
// Read length of track.
binReader.ReadBytes(LengthByteCount);
// Continue reading Midi events until the end of the track.
while (metaType != MetaType.EndOfTrack)
{
// Next Midi message in track.
IMidiMessage msg = null;
// Ticks for next Midi event.
int ticks = ReadVariableLengthQuantity();
// Read status byte for the next Midi message.
status = binReader.ReadByte();
// If this is a status byte.
if ((status & StatusFlag) == StatusFlag)
{
// If the next Midi message is a channel message.
if (ChannelMessage.IsChannelMessage(status))
{
// Read channel message from the Midi file.
msg = ReadChannelMessage(status);
// Update running status.
runningStatus = status;
}
// Else if the next Midi message is a meta message.
else if (MetaMessage.IsMetaMessage(status))
{
// Read the type of meta message.
metaType = (MetaType)binReader.ReadByte();
// Read the length of the meta message data.
int length = ReadVariableLengthQuantity();
// Read the meta message data.
byte[] data = binReader.ReadBytes(length);
// Create meta message.
msg = new MetaMessage(metaType, data);
}
// Else if the next Midi message is a system exclusive
// message.
else if (SysExMessage.IsSysExMessage(status))
{
// The type of system exclusive message.
SysExType type = (SysExType)status;
// Read the length of the system exclusive data.
int length = ReadVariableLengthQuantity();
// Read the system exclusive data.
byte[] data = binReader.ReadBytes(length);
// Create system exclusive message.
msg = new SysExMessage(type, data);
}
}
// Assumes running status.
else
{
// Create channel message.
msg = ReadChannelMessage(runningStatus, status);
}
// Create the next Midi event and store it in the specified
// track.
MidiEvent e = new MidiEvent(msg, ticks);
tracks[trackNum].Add(e);
}
}
