public override void PlayInstrument(uint instrumentNumber = 0)
{
PlayBackWaveProvider waveStream = new PlayBackWaveProvider(ModuleConst.SOUNDFREQUENCY, ModuleConst.MIX_CHANNELS == ModuleConst.STEREO);
XM_Sample sample = ((XM_Instrument)Instruments[(int)instrumentNumber - 1]).sample;
string mes = "\n\n\nSample number : " + sample.orderNumber;
float period = 7680.0f - (48 + sample.relativeNoteNumber) * 64.0f;
float frequency = (float)(8363 * Math.Pow(2, (4608.0f - period) * 0.001302083f));
float periodInc = (period != 0) ? frequency * 2 / ModuleConst.SOUNDFREQUENCY : 1.0f;
float pos = 0;
mes += " freq : " + period;
DebugMes(mes);
while (pos < sample.length * 4 - 1)
{
waveStream.Write((short)sample[(int)pos]);
pos += periodInc;
}
WaveOutEvent waveOut = new WaveOutEvent();
waveOut.Init(waveStream);
waveOut.Play();
}
protected virtual void MixData()
{
string ms = " channels " + module.numberOfChannels + " ";
for (int pos = 0; pos < ModuleConst.MIX_LEN; pos++)
{
float mixValueR = 0;
float mixValueL = 0;
float mixValue = 0;
for (int ch = 0; ch < module.numberOfChannels; ch++)
{
ModuleMixerChannel mc = mixChannels[ch];
//if (ch != 1) mc.muted = true;
if (!mc.muted)
{
mixValue += GetSampleValue(mc);
//if (ModuleConst.MIX_CHANNELS == ModuleConst.STEREO) {
// mixValueL += (((ch & 0x03) == 0) || ((ch & 0x03) == 3)) ? mixValue * 0.75f : mixValue * 0.25f;
// mixValueR += (((ch & 0x03) == 1) || ((ch & 0x03) == 2)) ? mixValue * 0.75f : mixValue * 0.25f;
//}
}
mc.instrumentPosition += mc.periodInc;
}
if (ModuleConst.MIX_CHANNELS != ModuleConst.STEREO)
{
mixValue /= module.numberOfChannels;
}
//else {
// mixValueL /= (module.numberOfChannels << 1);
// mixValueR /= (module.numberOfChannels << 1);
//}
if (ModuleConst.MIX_CHANNELS != ModuleConst.STEREO)
{
waveStream.Write((short)mixValue);
}
//else {
// waveStream.Write((short)mixValueL);
// waveStream.Write((short)mixValueR);
//}
mixerPosition++;
if (mixerPosition >= samplesPerTick)
{
SetBPM();
UpdateBPM();
}
}
}
