/// <summary>
/// Converts track to byte array of specified version
/// Versions:
/// 0 - Biggest and basic, codes frequency and duration
/// 1 - Some optimization, codes note number and duration
/// 2 - With dictionary with size of 120, good in big files
/// </summary>
/// <param name="version">Version of file</param>
/// <returns>Created file without header</returns>
private byte[] GetAsByteArray(int version)
{
if (version == 1 || version == 0)
{
MemoryStream ms = new MemoryStream();
BinaryWriter bw = new BinaryWriter(ms);
for (int i = 0; i < notes.Count; i++)
{
var ntn = notes[i];
if (version == 1)
bw.Write((byte)ntn.Number);
else
bw.Write((ushort)ntn.Frequency);
bw.Write((ushort)ntn.Length);
}
return ms.ToArray();
}
if (version == 2 | version == 3 | version == 4 | version == 5)
{
MemoryStream ms = new MemoryStream();
BinaryWriter bw = new BinaryWriter(ms);
List<NoteTwoCount> dictionary = new List<NoteTwoCount>();
for (int i = 0; i < notes.Count; i++)
{
var ntn = notes[i];
for (int ii = 0; ii < dictionary.Count; ii++)
if (dictionary[ii].isEqual(ntn))
{
dictionary[ii].count++;
goto ex0;
}
var ntctmp = new NoteTwoCount();
ntctmp.length = ntn.Length;
ntctmp.number = ntn.Number;
ntctmp.isBass = ntn.IsBass;
ntctmp.count = 1;
dictionary.Add(ntctmp);
ex0: { }
}
dictionary.Sort();
dictionary.Reverse();
int dictLen = 0;
if (version == 2)
dictLen = 128;
if (version == 3)
dictLen = 64;
if (version == 4)
dictLen = 32;
if (version == 5)
dictLen = 16;
for (int i = 0; i < dictLen; i++) //Filling dictionary
{
if (i < dictionary.Count)
{
bw.Write((byte)dictionary[i].number);
bw.Write((ushort)dictionary[i].length);
}
else
{
bw.Write((byte)0);
bw.Write((ushort)0);
}
}
if (dictionary.Count > dictLen)
{
for (int i = dictLen; i < dictionary.Count; i++)
{
dictionary.RemoveAt(i);
i--;
}
}
for (int i = 0; i < notes.Count; i++)
{
var ntn = notes[i];
for (int ii = 0; ii < dictionary.Count; ii++)
if (dictionary[ii].isEqual(ntn))
{
bw.Write((byte)((byte)ii + (byte)0x80));
goto ex1;
}
bw.Write((byte)ntn.Number);
bw.Write((ushort)ntn.Length);
ex1: { }
}
return ms.ToArray();
}
return null;
}
/// <summary>
/// Converts track to byte array of specified version
/// Versions:
/// 0 - Biggest and basic, codes frequency and duration
/// 1 - Some optimization, codes note number and duration
/// 2 - With dictionary with size of 120, good in big files
/// </summary>
/// <param name="version">Version of file</param>
/// <returns>Created file without header</returns>
private byte[] GetAsByteArray(int version)
{
if (version == 1 || version == 0)
{
MemoryStream ms = new MemoryStream();
BinaryWriter bw = new BinaryWriter(ms);
for (int i = 0; i < notes.Count; i++)
{
var ntn = notes[i];
if (version == 1)
{
bw.Write((byte)ntn.Number);
}
else
{
bw.Write((ushort)ntn.Frequency);
}
bw.Write((ushort)ntn.Length);
}
return(ms.ToArray());
}
if (version == 2 | version == 3 | version == 4 | version == 5)
{
MemoryStream ms = new MemoryStream();
BinaryWriter bw = new BinaryWriter(ms);
List <NoteTwoCount> dictionary = new List <NoteTwoCount>();
for (int i = 0; i < notes.Count; i++)
{
var ntn = notes[i];
for (int ii = 0; ii < dictionary.Count; ii++)
{
if (dictionary[ii].isEqual(ntn))
{
dictionary[ii].count++;
goto ex0;
}
}
var ntctmp = new NoteTwoCount();
ntctmp.length = ntn.Length;
ntctmp.number = ntn.Number;
ntctmp.isBass = ntn.IsBass;
ntctmp.count = 1;
dictionary.Add(ntctmp);
ex0 : { }
}
dictionary.Sort();
dictionary.Reverse();
int dictLen = 0;
if (version == 2)
{
dictLen = 128;
}
if (version == 3)
{
dictLen = 64;
}
if (version == 4)
{
dictLen = 32;
}
if (version == 5)
{
dictLen = 16;
}
for (int i = 0; i < dictLen; i++) //Filling dictionary
{
if (i < dictionary.Count)
{
bw.Write((byte)dictionary[i].number);
bw.Write((ushort)dictionary[i].length);
}
else
{
bw.Write((byte)0);
bw.Write((ushort)0);
}
}
if (dictionary.Count > dictLen)
{
for (int i = dictLen; i < dictionary.Count; i++)
{
dictionary.RemoveAt(i);
i--;
}
}
for (int i = 0; i < notes.Count; i++)
{
var ntn = notes[i];
for (int ii = 0; ii < dictionary.Count; ii++)
{
if (dictionary[ii].isEqual(ntn))
{
bw.Write((byte)((byte)ii + (byte)0x80));
goto ex1;
}
}
bw.Write((byte)ntn.Number);
bw.Write((ushort)ntn.Length);
ex1 : { }
}
return(ms.ToArray());
}
return(null);
}
