internal FastIterator(FastList<T> ll)
{
_ilist = ll;
Reset();
}
public void FirstPassParse()
{
int firstKey = 255;
int lastKey = 0;
UnendedNotes = new FastList <UnendedNote> [256 * 16];
for (int i = 0; i < 256 * 16; i++)
{
UnendedNotes[i] = new FastList <UnendedNote>();
}
byte eventThresh = settings.EventVelocityThreshold;
byte noteThresh = settings.NoteVelocityThreshold;
if (noteThresh > eventThresh)
{
noteThresh = eventThresh;
}
try
{
while (true)
{
uint delta = ReadVariableLenP1();
trackTimep1 += delta;
byte command = reader.ReadFast();
if (command < 0x80)
{
reader.Pushback = command;
command = prevCommand;
}
prevCommand = command;
byte comm = (byte)(command & 0b11110000);
if (comm == 0b10010000)
{
byte channel = (byte)(command & 0b00001111);
byte note = reader.Read();
byte vel = reader.ReadFast();
if (vel != 0)
{
if (vel >= noteThresh)
{
noteCount++;
noteCounts[note]++;
if (firstKey > note)
{
firstKey = note;
}
if (lastKey < note)
{
lastKey = note;
}
}
if (vel >= eventThresh)
{
midiNoteEventCount++;
}
UnendedNotes[note * 16 + channel].Add(new UnendedNote()
{
vel = vel
});
}
else
{
var un = UnendedNotes[note * 16 + channel];
if (!un.ZeroLen)
{
if (un.Pop().vel >= eventThresh)
{
midiNoteEventCount++;
}
}
}
continue;
}
else if (comm == 0b10000000)
{
byte channel = (byte)(command & 0b00001111);
byte note = reader.Read();
byte vel = reader.ReadFast();
var un = UnendedNotes[note * 16 + channel];
if (!un.ZeroLen)
{
if (un.Pop().vel >= eventThresh)
{
midiNoteEventCount++;
}
}
continue;
}
else if (comm == 0b10100000)
{
byte channel = (byte)(command & 0b00001111);
byte note = reader.Read();
byte vel = reader.Read();
midiNoteEventCount++;
}
else if (comm == 0b10110000)
{
byte channel = (byte)(command & 0b00001111);
byte controller = reader.Read();
byte value = reader.Read();
midiControlEventCount++;
}
else if (comm == 0b11000000)
{
byte program = reader.Read();
midiControlEventCount++;
}
else if (comm == 0b11010000)
{
byte pressure = reader.Read();
midiControlEventCount++;
}
else if (comm == 0b11100000)
{
byte var1 = reader.Read();
byte var2 = reader.Read();
midiControlEventCount++;
}
else if (comm == 0b10110000)
{
byte cc = reader.Read();
byte vv = reader.Read();
midiControlEventCount++;
}
else if (command == 0b11110000)
{
List <byte> data = new List <byte>()
{
command
};
byte b = 0;
while (b != 0b11110111)
{
b = reader.Read();
data.Add(b);
}
}
else if (command == 0b11110100 || command == 0b11110001 || command == 0b11110101 || command == 0b11111001 || command == 0b11111101)
{
}
else if (command == 0b11110010)
{
byte var1 = reader.Read();
byte var2 = reader.Read();
}
else if (command == 0b11110011)
{
byte pos = reader.Read();
}
else if (command == 0b11110110)
{
}
else if (command == 0b11110111)
{
}
else if (command == 0b11111000)
{
}
else if (command == 0b11111010)
{
}
else if (command == 0b11111100)
{
}
else if (command == 0b11111110)
{
}
else if (command == 0xFF)
{
command = reader.Read();
if (command == 0x00)
{
if (reader.Read() != 2)
{
throw new Exception("Corrupt Track");
}
reader.Read();
reader.Read();
}
else if ((command >= 0x01 && command <= 0x0A) || command == 0x7F)
{
int size = (int)ReadVariableLenP1();
if (command == 0x0A &&
(size == 8 || size == 12))
{
if (reader.Read() == 0x00)
{
if (reader.Read() == 0x0F)
{
byte channel = reader.Read();
if (channel < 16 || channel == 0x7F)
{
if (reader.Read() == 0x00)
{
if (size == 8)
{
reader.Skip(4);
}
else if (size == 12)
{
reader.Skip(8);
}
if (channel == 0x7F)
{
for (int i = 0; i < 16; i++)
{
colorEventCounts[i]++;
}
}
else
{
colorEventCounts[channel]++;
}
}
else
{
reader.Skip(size - 4);
}
}
else
{
reader.Skip(size - 3);
}
}
else
{
reader.Skip(size - 2);
}
}
else
{
reader.Skip(size - 1);
}
}
else
{
reader.Skip(size);
}
}
else if (command == 0x20)
{
command = reader.Read();
if (command != 1)
{
throw new Exception("Corrupt Track");
}
reader.Read();
}
else if (command == 0x21)
{
command = reader.Read();
if (command != 1)
{
throw new Exception("Corrupt Track");
}
reader.Read();
}
else if (command == 0x2F)
{
command = reader.Read();
if (command != 0)
{
throw new Exception("Corrupt Track");
}
break;
}
else if (command == 0x51)
{
command = reader.Read();
if (command != 3)
{
throw new Exception("Corrupt Track");
}
int btempo = 0;
for (int i = 0; i != 3; i++)
{
btempo = (int)((btempo << 8) | reader.Read());
}
Tempos.Add(new TempoEvent()
{
time = trackTimep1, tempo = btempo
});
}
else if (command == 0x54)
{
command = reader.Read();
if (command != 5)
{
throw new Exception("Corrupt Track");
}
byte hr = reader.Read();
byte mn = reader.Read();
byte se = reader.Read();
byte fr = reader.Read();
byte ff = reader.Read();
}
else if (command == 0x58)
{
command = reader.Read();
if (command != 4)
{
throw new Exception("Corrupt Track");
}
byte nn = reader.Read();
byte dd = reader.Read();
byte cc = reader.Read();
byte bb = reader.Read();
}
else if (command == 0x59)
{
command = reader.Read();
if (command != 2)
{
throw new Exception("Corrupt Track");
}
byte sf = reader.Read();
byte mi = reader.Read();
}
else
{
throw new Exception("Corrupt Track");
}
}
else
{
throw new Exception("Corrupt Track");
}
}