#region License
/* Copyright (c) 2006 Leslie Sanford
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#endregion
#region Contact
/*
* Leslie Sanford
* Email: jabberdabber@hotmail.com
*/
#endregion
using System;
using System.Collections.Generic;
namespace Multimedia.Midi
{
public class ChannelStopper : ISource<ChannelMessage>
{
private ChannelMessage[,] noteOnMessage;
private bool[] holdPedal1Message;
private bool[] holdPedal2Message;
private bool[] sustenutoMessage;
private ChannelMessageBuilder builder = new ChannelMessageBuilder();
private Notifier<ChannelMessage> channelNotifier = new Notifier<ChannelMessage>();
public ChannelStopper()
{
int c = ChannelMessage.MidiChannelMaxValue + 1;
int d = ShortMessage.DataMaxValue + 1;
noteOnMessage = new ChannelMessage[c, d];
holdPedal1Message = new bool[c];
holdPedal2Message = new bool[c];
sustenutoMessage = new bool[c];
}
public void AllSoundOff()
{
for(int c = 0; c <= ChannelMessage.MidiChannelMaxValue; c++)
{
for(int n = 0; n <= ShortMessage.DataMaxValue; n++)
{
if(noteOnMessage[c, n] != null)
{
builder.MidiChannel = c;
builder.Command = ChannelCommand.NoteOff;
builder.Data1 = noteOnMessage[c, n].Data1;
builder.Build();
channelNotifier.Notify(builder.Result);
noteOnMessage[c, n] = null;
}
}
if(holdPedal1Message[c])
{
builder.MidiChannel = c;
builder.Command = ChannelCommand.Controller;
builder.Data1 = (int)ControllerType.HoldPedal1;
builder.Build();
channelNotifier.Notify(builder.Result);
holdPedal1Message[c] = false;
}
if(holdPedal2Message[c])
{
builder.MidiChannel = c;
builder.Command = ChannelCommand.Controller;
builder.Data1 = (int)ControllerType.HoldPedal2;
builder.Build();
channelNotifier.Notify(builder.Result);
holdPedal2Message[c] = false;
}
if(sustenutoMessage[c])
{
builder.MidiChannel = c;
builder.Command = ChannelCommand.Controller;
builder.Data1 = (int)ControllerType.SustenutoPedal;
builder.Build();
channelNotifier.Notify(builder.Result);
sustenutoMessage[c] = false;
}
}
}
public void Reset()
{
for(int c = 0; c <= ChannelMessage.MidiChannelMaxValue; c++)
{
for(int n = 0; n <= ShortMessage.DataMaxValue; n++)
{
noteOnMessage[c, n] = null;
}
holdPedal1Message[c] = false;
holdPedal2Message[c] = false;
sustenutoMessage[c] = false;
}
}
public void ProcessMessage(ChannelMessage message)
{
switch(message.Command)
{
case ChannelCommand.NoteOn:
if(message.Data2 > 0)
{
noteOnMessage[message.MidiChannel, message.Data1] = message;
}
else
{
noteOnMessage[message.MidiChannel, message.Data1] = null;
}
break;
case ChannelCommand.NoteOff:
noteOnMessage[message.MidiChannel, message.Data1] = null;
break;
case ChannelCommand.Controller:
switch(message.Data1)
{
case (int)ControllerType.HoldPedal1:
if(message.Data2 > 63)
{
holdPedal1Message[message.MidiChannel] = true;
}
else
{
holdPedal1Message[message.MidiChannel] = false;
}
break;
case (int)ControllerType.HoldPedal2:
if(message.Data2 > 63)
{
holdPedal2Message[message.MidiChannel] = true;
}
else
{
holdPedal2Message[message.MidiChannel] = false;
}
break;
case (int)ControllerType.SustenutoPedal:
if(message.Data2 > 63)
{
sustenutoMessage[message.MidiChannel] = true;
}
else
{
sustenutoMessage[message.MidiChannel] = false;
}
break;
}
break;
}
channelNotifier.Notify(message);
}
#region ISource<ChannelMessage> Members
public void Connect(Sink<ChannelMessage> sink)
{
channelNotifier.Connect(sink);
}
public void Disconnect(Sink<ChannelMessage> sink)
{
channelNotifier.Disconnect(sink);
}
#endregion
}
}