private void readMidiChannels()
{
/*Read MIDI channels.
*
* Guitar Pro format provides 64 channels(4 MIDI ports by 16
* channels), the channels are stored in this order:
*
* -port1 / channel1
* - port1 / channel2
* - ...
* - port1 / channel16
* - port2 / channel1
* - ...
* - port4 / channel16
*
* Each channel has the following form:
* -Instrument: :ref:`int`.
* -Volume: :ref:`byte`.
* -Balance: :ref:`byte`.
* -Chorus: :ref:`byte`.
* -Reverb: :ref:`byte`.
* -Phaser: :ref:`byte`.
* -Tremolo: :ref:`byte`.
* -blank1: :ref:`byte`.
* -blank2: :ref:`byte`.*/
MidiChannel[] _channels = new MidiChannel[64];
for (int i = 0; i < 64; i++)
{
var newChannel = new MidiChannel();
newChannel.channel = i;
newChannel.effectChannel = i;
var instrument = GPBase.readInt()[0];
if (newChannel.isPercussionChannel() && instrument == -1)
{
instrument = 0;
}
newChannel.instrument = instrument;
newChannel.volume = toChannelShort(GPBase.readByte()[0]);
newChannel.balance = toChannelShort(GPBase.readByte()[0]);
newChannel.chorus = toChannelShort(GPBase.readByte()[0]);
newChannel.reverb = toChannelShort(GPBase.readByte()[0]);
newChannel.phaser = toChannelShort(GPBase.readByte()[0]);
newChannel.tremolo = toChannelShort(GPBase.readByte()[0]);
_channels[i] = newChannel;
GPBase.skip(2);
}
channels = _channels;
}
private MidiChannel readChannel(MidiChannel[] channels)
{ /*Read MIDI channel.
*
* MIDI channel in Guitar Pro is represented by two integers. First
* is zero-based number of channel, second is zero-based number of
* channel used for effects.*/
var index = GPBase.readInt()[0] - 1;
MidiChannel trackChannel = new MidiChannel();
var effectChannel = GPBase.readInt()[0] - 1;
if (0 <= index && index < channels.Length)
{
trackChannel = channels[index];
if (trackChannel.instrument < 0)
{
trackChannel.instrument = 0;
}
if (!trackChannel.isPercussionChannel())
{
trackChannel.effectChannel = effectChannel;
}
}
return(trackChannel);
}
