private void SetDelta(int ch, midiChip chip, long NewFrameCounter)
{
if (ch >= chip.oldFrameCounter.Length)
{
return;
}
long sub = NewFrameCounter - chip.oldFrameCounter[ch];
long step = (long)(sub / (double)Common.SampleRate * 960.0);
chip.oldFrameCounter[ch] += (long)(step * (double)Common.SampleRate / 960.0);
bool flg = true;
for (int i = 0; i < 4; i++)
{
byte d = (byte)((step & (0x0fe00000 >> (7 * i))) >> (21 - 7 * i));
if (flg && d == 0 && i < 3)
{
continue;
}
flg = false;
d |= (byte)((i != 3) ? 0x80 : 0x00);
chip.data[ch].Add(d);
}
}
private void InitYM2151()
{
midi2151 = new midiChip();
midi2151.maxTrk = 8;
midi2151.oldCode = new int[midi2151.maxTrk];
midi2151.oldFreq = new int[midi2151.maxTrk];
midi2151.data = new List <byte> [midi2151.maxTrk];
midi2151.oldFrameCounter = new long[midi2151.maxTrk];
for (int i = 0; i < midi2151.maxTrk; i++)
{
midi2151.oldCode[i] = -1;
midi2151.oldFreq[i] = -1;
midi2151.data[i] = new List <byte>();
midi2151.oldFrameCounter[i] = 0L;
}
for (int i = 0; i < midi2151.maxTrk; i++)
{
midi2151.data[i].Add(0x4d); //チャンクタイプ'MTrk'
midi2151.data[i].Add(0x54);
midi2151.data[i].Add(0x72);
midi2151.data[i].Add(0x6b);
midi2151.data[i].Add(0x00); //データ長 この時点では不明のためとりあえず0
midi2151.data[i].Add(0x00);
midi2151.data[i].Add(0x00);
midi2151.data[i].Add(0x00);
midi2151.data[i].Add(0x00); //delta0
midi2151.data[i].Add(0xff); // メタイベントポート指定
midi2151.data[i].Add(0x21);
midi2151.data[i].Add(0x01);
midi2151.data[i].Add(0x00); //Port1
midi2151.data[i].Add(0x00); //delta0
midi2151.data[i].Add(0xff); // メタイベント トラック名
midi2151.data[i].Add(0x03);
midi2151.data[i].Add(0x00);
}
if (!setting.midiExport.UseVOPMex)
{
return;
}
//VOPMex向け
for (int i = 0; i < midi2151.maxTrk; i++)
{
//音色コントロールの動作を変更(全MIDIチャンネル)
midi2151.data[i].Add(0x50); //Delta 0
midi2151.data[i].Add((byte)(0xb0 + i)); // CC 121 127
midi2151.data[i].Add(121);
midi2151.data[i].Add(127);
midi2151.data[i].Add(0x50); //Delta 0
midi2151.data[i].Add((byte)(0xb0 + i)); // CC 126 127
midi2151.data[i].Add(126);
midi2151.data[i].Add(127);
midi2151.data[i].Add(0x50); //Delta 0
midi2151.data[i].Add((byte)(0xb0 + i)); // CC 123 127
midi2151.data[i].Add(123);
midi2151.data[i].Add(127);
midi2151.data[i].Add(0x50); //Delta 0
midi2151.data[i].Add((byte)(0xb0 + i)); // CC 98 127
midi2151.data[i].Add(98);
midi2151.data[i].Add(127);
midi2151.data[i].Add(0x50); //Delta 0
midi2151.data[i].Add((byte)(0xb0 + i)); // CC 99 126
midi2151.data[i].Add(99);
midi2151.data[i].Add(126);
midi2151.data[i].Add(0x50); //Delta 0
midi2151.data[i].Add((byte)(0xb0 + i)); // CC 6 127
midi2151.data[i].Add(6);
midi2151.data[i].Add(127);
midi2151.data[i].Add(0x50); //Delta 0
midi2151.data[i].Add((byte)(0xb0 + i)); // CC 93 120
midi2151.data[i].Add(93);
midi2151.data[i].Add(120);
}
}
public void Close()
{
if (!setting.midiExport.UseMIDIExport)
{
return;
}
if (setting.midiExport.ExportPath == "")
{
return;
}
if (cData == null)
{
return;
}
//if (midiData.Count < 23) return;
int portNum = 0;
int trkNum = 1;
if (setting.midiExport.UseYM2151Export)
{
for (int ch = 0; ch < midi2151.maxTrk; ch++)
{
SetDelta(ch, midi2151, midi2151.oldFrameCounter[ch]);
if (midi2151.oldCode[ch] >= 0)
{
midi2151.data[ch].Add((byte)(0x80 | ch));
midi2151.data[ch].Add((byte)midi2151.oldCode[ch]);
midi2151.data[ch].Add(0x00);
midi2151.oldCode[ch] = -1;
midi2151.data[ch].Add(0x00);//Delta 0
}
midi2151.data[ch].Add(0xff); //メタイベント
midi2151.data[ch].Add(0x2f);
midi2151.data[ch].Add(0x00);
int MTrkLengthAdr = 0x04;
midi2151.data[ch][MTrkLengthAdr + 0] = (byte)(((midi2151.data[ch].Count - (MTrkLengthAdr + 4)) & 0xff000000) >> 24);
midi2151.data[ch][MTrkLengthAdr + 1] = (byte)(((midi2151.data[ch].Count - (MTrkLengthAdr + 4)) & 0x00ff0000) >> 16);
midi2151.data[ch][MTrkLengthAdr + 2] = (byte)(((midi2151.data[ch].Count - (MTrkLengthAdr + 4)) & 0x0000ff00) >> 8);
midi2151.data[ch][MTrkLengthAdr + 3] = (byte)(((midi2151.data[ch].Count - (MTrkLengthAdr + 4)) & 0x000000ff) >> 0);
int PortAdr = 0x08;
midi2151.data[ch][PortAdr + 4] = (byte)portNum;
}
portNum++;
trkNum += midi2151.maxTrk;
}
if (setting.midiExport.UseYM2612Export)
{
for (int ch = 0; ch < midi2612.maxTrk; ch++)
{
SetDelta(ch, midi2612, midi2612.oldFrameCounter[ch]);
if (midi2612.oldCode[ch] >= 0)
{
midi2612.data[ch].Add((byte)(0x80 | ch));
midi2612.data[ch].Add((byte)midi2612.oldCode[ch]);
midi2612.data[ch].Add(0x00);
midi2612.oldCode[ch] = -1;
midi2612.data[ch].Add(0x00);//Delta 0
}
midi2612.data[ch].Add(0xff); //メタイベント
midi2612.data[ch].Add(0x2f);
midi2612.data[ch].Add(0x00);
int MTrkLengthAdr = 0x04;
midi2612.data[ch][MTrkLengthAdr + 0] = (byte)(((midi2612.data[ch].Count - (MTrkLengthAdr + 4)) & 0xff000000) >> 24);
midi2612.data[ch][MTrkLengthAdr + 1] = (byte)(((midi2612.data[ch].Count - (MTrkLengthAdr + 4)) & 0x00ff0000) >> 16);
midi2612.data[ch][MTrkLengthAdr + 2] = (byte)(((midi2612.data[ch].Count - (MTrkLengthAdr + 4)) & 0x0000ff00) >> 8);
midi2612.data[ch][MTrkLengthAdr + 3] = (byte)(((midi2612.data[ch].Count - (MTrkLengthAdr + 4)) & 0x000000ff) >> 0);
int PortAdr = 0x08;
midi2612.data[ch][PortAdr + 4] = (byte)portNum;
}
portNum++;
trkNum += midi2612.maxTrk;
}
cData[0xb] = (byte)trkNum;//トラック数
try
{
string fn = PlayingFileName == "" ? "Temp.mid" : PlayingFileName;
List <byte> buf = new List <byte>();
foreach (byte d in cData)
{
buf.Add(d);
}
if (setting.midiExport.UseYM2151Export)
{
foreach (List <byte> dat in midi2151.data)
{
foreach (byte d in dat)
{
buf.Add(d);
}
}
}
if (setting.midiExport.UseYM2612Export)
{
foreach (List <byte> dat in midi2612.data)
{
foreach (byte d in dat)
{
buf.Add(d);
}
}
}
File.WriteAllBytes(Path.Combine(setting.midiExport.ExportPath, Path.ChangeExtension(Path.GetFileName(fn), ".mid")), buf.ToArray());
}
catch
{
}
cData = null;
midi2151 = null;
midi2612 = null;
}