673 lines
18 KiB
C#
673 lines
18 KiB
C#
/*
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Copyright (C) Arnaud Houdelette 2012-2014
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Copyright (C) Emmanuel Langlois 2012-2014
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Runtime.InteropServices;
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using System.Collections.Generic;
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using System.Linq;
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namespace DMX2
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{
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public class MidiEventProvider : IEventProvider
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{
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class internalEvent {
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readonly string internalName;
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bool bound=false;
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readonly uint page;
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readonly int midiEvCode;
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public bool Bound {
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get {
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return bound;
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}
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set {
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bound = value;
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}
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}
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public string InternalName {
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get {
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return internalName;
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}
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}
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public uint Page {
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get {
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return page;
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}
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}
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public int MidiEvCode {
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get {
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return midiEvCode;
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}
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}
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public internalEvent(string _id, uint _page, int _evHCode)
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{
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internalName=_id;
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page=_page;
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midiEvCode = _evHCode;
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}
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int lastknownvalue=-1;
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public int LastKnownValue {
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get {
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return lastknownvalue;
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}
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set {
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lastknownvalue = value;
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}
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}
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AlsaSeqLib.snd_seq_event_t storedevent;
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public AlsaSeqLib.snd_seq_event_t StoredEvent {
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get {
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return storedevent;
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}
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set {
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storedevent = value;
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}
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}
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}
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abstract class feedbackinfo : IFeedbackInfo {
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MidiEventProvider prov;
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readonly internalEvent iev;
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protected AlsaSeqLib.snd_seq_event_t ev;
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public feedbackinfo(MidiEventProvider _prov, internalEvent _iev){
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prov = _prov;
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iev=_iev;
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}
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protected abstract bool UpdateEvent(byte data);
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#region IFeedbackInfo implementation
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bool IFeedbackInfo.FeedBack (byte data)
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{
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bool update = UpdateEvent (data);
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iev.StoredEvent = ev;
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if (!update) return true;
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iev.LastKnownValue = data;
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if (prov.CurrentPage == iev.Page || iev.Page == 0) {
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prov.SendEvent (ev);
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foreach (int srcid in MidiEventProvider.feedbacksources) {
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prov.lastValueOfSrc[CombineHash( srcid , iev.MidiEvCode)] = data;
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}
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}
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return true;
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}
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#endregion
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}
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class ctrlfeedbackinfo : feedbackinfo {
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public ctrlfeedbackinfo(MidiEventProvider _prov, internalEvent _iev, byte channel,uint param)
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:base(_prov,_iev)
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{
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ev = new AlsaSeqLib.snd_seq_event_t();
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ev.data_ev_ctrl.channel = channel;
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ev.data_ev_ctrl.param= param;
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ev.type = AlsaSeqLib.snd_seq_event_type_t.SND_SEQ_EVENT_CONTROLLER;
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}
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protected override bool UpdateEvent (byte data)
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{
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int newvalue= (int)data * 127 / 255;
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if(newvalue==ev.data_ev_ctrl.value) return false;
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ev.data_ev_ctrl.value = newvalue;
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return true;
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}
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}
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class pitchbendfeedbackinfo : feedbackinfo {
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public pitchbendfeedbackinfo(MidiEventProvider _prov, internalEvent _iev, byte channel)
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:base(_prov,_iev)
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{
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ev = new AlsaSeqLib.snd_seq_event_t();
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ev.data_ev_ctrl.channel = channel;
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ev.type = AlsaSeqLib.snd_seq_event_type_t.SND_SEQ_EVENT_PITCHBEND;
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}
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protected override bool UpdateEvent (byte data)
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{
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int newvalue = (int)data * 16000 / 255-8000;
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if(newvalue==ev.data_ev_ctrl.value) return false;
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ev.data_ev_ctrl.value = newvalue;
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return true;
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}
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}
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public class MidiDev{
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string name;
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public string Name {get{return name;} }
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public bool HasFeedback { get; set; }
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readonly List<int> connected = new List<int>();
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public List<int> ConnectedPorts {
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get{return connected;}
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}
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public MidiDev(string _name)
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{
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name=_name;
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}
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}
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/// <summary>
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/// Etat interne des evenements midi paginés.
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/// </summary>
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readonly Dictionary<string,internalEvent> eventlist = new Dictionary<string, internalEvent>();
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/// <summary>
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/// Liste des peripheriques connus (presents ou non)
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/// </summary>
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static readonly Dictionary<string,MidiDev> knowndevices = new Dictionary<string,MidiDev>();
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/// <summary>
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/// Liste des ports connectés avec feedback
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/// </summary>
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static readonly List<int> feedbacksources = new List<int>();
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//static readonly Dictionary<int,MidiDev> srcidToDev = new Dictionary<int, MidiDev>();
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static readonly List<byte> unpaginatedchannels = new List<byte>();
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/// <summary>
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/// Derniere valeur connue pour une evenement sur source donnée :
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/// Soit recue, soit envoyée (feedback / changement de page)
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/// </summary>
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readonly Dictionary<int,byte> lastValueOfSrc = new Dictionary<int, byte>();
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EventData last;
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internalEvent levent=null;
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bool connected=false;
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static bool guirefreshflag=false;
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uint page=1;
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static uint maxpage=8;
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public uint CurrentPage {
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get {
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return page;
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}
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set {
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if(value<1 || value > maxpage) return;
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page = value;
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Refresh();
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}
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}
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public static uint Maxpage {
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get {
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return maxpage;
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}
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set {
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maxpage = value;
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}
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}
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public static List<byte> UnpaginatedChannels {
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get {
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return unpaginatedchannels;
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}
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}
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public static bool GuiRefreshFlag {
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get {
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if(guirefreshflag){
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guirefreshflag=false;
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return true;
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}
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return false;
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}
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}
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static public void ConnectDevice (string name)
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{
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knowndevices.Add(name,new MidiDev(name));
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AutoConnect();
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}
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static public void RefreshFeedback (string name)
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{
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foreach (int port in knowndevices[name].ConnectedPorts) {
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if(knowndevices[name].HasFeedback){
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if(!feedbacksources.Contains(port))
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feedbacksources.Add(port);
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}else{
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if(feedbacksources.Contains(port))
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feedbacksources.Remove(port);
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}
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}
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}
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public static void DisconnectDevice (MidiEventProvider.MidiDev dev)
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{
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if (!knowndevices.ContainsKey (dev.Name))
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return;
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knowndevices.Remove (dev.Name);
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// TODO: Deconnecter ici
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foreach (int connectedport in dev.ConnectedPorts) {
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int client = connectedport >> 8;
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int port = connectedport & 0xFF;
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AlsaSeqLib.Deconnecte(client,port);
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}
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}
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static public bool IsKnownDevice(string name){
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return knowndevices.ContainsKey(name);
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}
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static public IEnumerable<MidiDev> KnownDevices {
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get {
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return knowndevices.Values;
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}
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}
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static MidiEventProvider ()
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{
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MidiDev dev = new MidiDev("VMPK Input:VMPK Input");
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dev.HasFeedback = true;
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knowndevices.Add(dev.Name,dev);
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dev = new MidiDev("VMPK Output:VMPK Output");
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dev.HasFeedback = true;
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knowndevices.Add(dev.Name,dev);
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/*
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dev = new MidiDev("BCF2000:BCF2000 MIDI 1");
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dev.HasFeedback = true;
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knowndevices.Add(dev.Name,dev);*/
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}
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public MidiEventProvider (EventManager manager)
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{
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manager.RegisterProvider (this);
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AlsaSeqLib.Init ();
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AlsaSeqLib.ConnectFrom(AlsaSeqLib.SND_SEQ_CLIENT_SYSTEM, AlsaSeqLib.SND_SEQ_PORT_SYSTEM_ANNOUNCE);
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AutoConnect();
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unpaginatedchannels.Add((byte)0);
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}
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static void AutoConnect ()
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{
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foreach (var cli in AlsaSeqLib.EnumClients()) {
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foreach(var p in cli.Ports){
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PortDetected(cli,p);
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}
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}
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}
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static void PortDetected (AlsaSeqLib.Client cli, AlsaSeqLib.Port p)
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{
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// Execute a chaque 'apparition' d'un port midi
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// teste si connection auto au port et connecte si besoin
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guirefreshflag=true;
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string fullportname = cli.Name + ':' + p.Name;
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if(knowndevices.ContainsKey(fullportname)){
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int srcid = p.ClientId <<8 + p.PortId;
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if(knowndevices[fullportname].ConnectedPorts.Contains(srcid))
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return;
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AlsaSeqLib.Connect(p);
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}
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}
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static void PortConnect (AlsaSeqLib.snd_seq_connect_t cn, bool connect)
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{
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int clientId,portId;
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if (cn.dest.client == AlsaSeqLib.ClientId) {
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clientId = cn.sender.client;
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portId = cn.sender.port;
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} else {
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clientId = cn.dest.client;
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portId = cn.dest.port;
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}
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int srcid = clientId << 8 + portId;
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if (connect) {
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string fpname= AlsaSeqLib.GetClientByID(clientId).Name + ":"+ AlsaSeqLib.GetPortByIDs (clientId, portId).Name;
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if (!knowndevices.ContainsKey(fpname)) return;
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if (knowndevices [fpname].ConnectedPorts.Contains (srcid))
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return;
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knowndevices [fpname].ConnectedPorts.Add (srcid);
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if(knowndevices [fpname].HasFeedback)
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feedbacksources.Add (srcid);
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guirefreshflag=true;
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//srcidToDev[srcid] = knowndevices [fpname];
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return;
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}
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foreach (var dev in knowndevices.Values) {
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if(dev.ConnectedPorts.Contains (srcid))
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{
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/*if(srcidToDev.ContainsKey(srcid))
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srcidToDev.Remove(srcid);*/
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dev.ConnectedPorts.Remove(srcid);
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guirefreshflag=true;
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return;
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}
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}
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}
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static int CombineHash (int hash1, int hash2)
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{
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unchecked {
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return hash1 * 33 + hash2;
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}
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}
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protected bool HasFeedback (int source)
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{
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return feedbacksources.Contains(source);
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}
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public void SendEvent (AlsaSeqLib.snd_seq_event_t ev)
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{
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AlsaSeqLib.SendEventToSubscribers(ev);
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}
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public void Refresh ()
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{
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foreach (var ievent in eventlist.Values) {
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if (ievent.Page == page){
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SendEvent(ievent.StoredEvent);
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foreach(int src in feedbacksources){
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int lnvk = CombineHash(src, ievent.MidiEvCode);
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if(ievent.LastKnownValue!=-1)
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lastValueOfSrc[lnvk] = (byte)ievent.LastKnownValue;
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}
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}
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}
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}
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#region IEventProvider implementation
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static System.Text.RegularExpressions.Regex regexEventID = new System.Text.RegularExpressions.Regex(
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@"MIDI-PAGE(?<page>\d+)-(?<id>.+)",
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System.Text.RegularExpressions.RegexOptions.Compiled);
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bool IEventProvider.Bind (string eventId)
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{
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// On indique a l'EventManager qu'on traite, si l'ID commence par 'MIDI-'
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if (! eventId.StartsWith ("MIDI-"))
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return false;
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if (! eventlist.ContainsKey (eventId)) {
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var res = regexEventID.Match (eventId);
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if (!res.Success) return false;
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uint _page = uint.Parse (res.Groups ["page"].Value);
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int _evHC = res.Groups["id"].Value.GetHashCode();
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eventlist.Add (eventId, new internalEvent (eventId,_page,_evHC ));
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}
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eventlist[eventId].Bound = true;
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return true;
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}
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void IEventProvider.Unbind (string eventId)
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{
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if(! eventlist.ContainsKey(eventId)) return;
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eventlist[eventId].Bound = false;
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return;
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}
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Gtk.Menu IEventProvider.GetProviderSubMenu (EventManager.EventMenuData state, Gtk.ButtonPressEventHandler handler)
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{
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if(!connected) return null; // Si pas encore recu d'evenements => pas de menu
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Gtk.Menu retmenu = new Gtk.Menu ();
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if (levent != null) { // Creation du sous menu "Dernier"
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/*Gtk.MenuItem lmenuitem = new Gtk.MenuItem ("Dernier");
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retmenu.Add (lmenuitem);
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Gtk.Menu lmenu = new Gtk.Menu ();
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lmenuitem.Submenu = lmenu;*/
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Gtk.MenuItem item = new Gtk.MenuItem(GetDescription(levent.InternalName));
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item.Data[EventManager.EventIdKey] = levent.InternalName;
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item.Data[EventManager.StateKey] = state;
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item.ButtonPressEvent += handler;
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retmenu.Add (item);
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}
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Gtk.MenuItem evmenuitem = new Gtk.MenuItem ("Events"); // Creation du sous menu "Events"
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retmenu.Add (evmenuitem);
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Gtk.Menu evmenu = new Gtk.Menu ();
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evmenuitem.Submenu = evmenu;
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List<string> sortedKeys = eventlist.Keys.ToList(); // On recupere des IDs
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sortedKeys.Sort(); // et on les trie
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foreach ( string key in sortedKeys ) {
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internalEvent evt= eventlist[key];
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Gtk.MenuItem item = new Gtk.MenuItem(GetDescription(evt.InternalName));
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item.Data[EventManager.EventIdKey] = evt.InternalName;
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item.Data[EventManager.StateKey] = state;
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item.ButtonPressEvent += handler;
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evmenu.Add (item);
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}
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return retmenu;
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}
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void IEventProvider.ProcessEvents (EventManagerCallback callback)
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{
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AlsaSeqLib.snd_seq_event_t evS;
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uint evpage;
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// Tant qu'il y des evenements midi en attente
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while (AlsaSeqLib.GetEvent(out evS)) {
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string id = null;
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int value=0;
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byte channel = 255;
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switch (evS.type) {
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case AlsaSeqLib.snd_seq_event_type_t.SND_SEQ_EVENT_PORT_SUBSCRIBED: // Connection d'un périph midi
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case AlsaSeqLib.snd_seq_event_type_t.SND_SEQ_EVENT_PORT_UNSUBSCRIBED:
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PortConnect(
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evS.data_connect,
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evS.type==AlsaSeqLib.snd_seq_event_type_t.SND_SEQ_EVENT_PORT_SUBSCRIBED
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);
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continue;
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case AlsaSeqLib.snd_seq_event_type_t.SND_SEQ_EVENT_CONTROLLER:
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if(evS.data_ev_ctrl.param==127 && evS.data_ev_ctrl.value >0){
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CurrentPage++; continue;
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}
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if(evS.data_ev_ctrl.param==126 && evS.data_ev_ctrl.value>0){
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CurrentPage--; continue;
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}
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id = string.Format("CTRL-C{0}P{1}",evS.data_ev_ctrl.channel,evS.data_ev_ctrl.param);
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channel = evS.data_ev_ctrl.channel;
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value = 255 * evS.data_ev_ctrl.value / 127; // Conversion {0,127} => {0,255}
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break;
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case AlsaSeqLib.snd_seq_event_type_t.SND_SEQ_EVENT_NOTEON:
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id = string.Format("NOTE-C{0}N{1}",evS.data_ev_note.channel, evS.data_ev_note.note );
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channel = evS.data_ev_note.channel;
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value = 255 ;
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break;
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case AlsaSeqLib.snd_seq_event_type_t.SND_SEQ_EVENT_NOTEOFF:
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id = string.Format("NOTE-C{0}N{1}",evS.data_ev_note.channel, evS.data_ev_note.note );
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channel = evS.data_ev_note.channel;
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value = 0;
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break;
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case AlsaSeqLib.snd_seq_event_type_t.SND_SEQ_EVENT_PITCHBEND:
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id = string.Format("PB-C{0}",evS.data_ev_ctrl.channel);
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channel = evS.data_ev_ctrl.channel;
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value = ((evS.data_ev_ctrl.value + 8000) *255 / 16000);
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if(value<0) value =0; if(value>255) value = 255;
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break;
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case AlsaSeqLib.snd_seq_event_type_t.SND_SEQ_EVENT_CLOCK:
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case AlsaSeqLib.snd_seq_event_type_t.SND_SEQ_EVENT_SENSING:
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continue;
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case AlsaSeqLib.snd_seq_event_type_t.SND_SEQ_EVENT_PORT_START:
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PortDetected(
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AlsaSeqLib.GetClientByID(evS.data_addr.client),
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AlsaSeqLib.GetPortByIDs(evS.data_addr.client,evS.data_addr.port)
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);
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continue;
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//TODO : Regarder si d'autres controles interessants.
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default:
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id= null;
|
|
#if DEBUG
|
|
Console.WriteLine(string.Format ("event {0}", evS.type) );
|
|
Info.Publish(string.Format ("event {0}", evS.type) ); // On affiche les evenements inconnus
|
|
#endif
|
|
continue;
|
|
}
|
|
|
|
connected=true;
|
|
|
|
|
|
|
|
if(id!=null)
|
|
{
|
|
// Hashcode de l'ev Midi, non pagine
|
|
int evHC = id.GetHashCode();
|
|
int srcid = evS.source.client <<8 + evS.source.port;
|
|
int lnvk = CombineHash( srcid , evHC);
|
|
|
|
if(channel == 255 || unpaginatedchannels.Contains(channel))
|
|
evpage= 0;
|
|
else
|
|
evpage= page;
|
|
|
|
// Construction de l'ID evenement
|
|
id = string.Format("MIDI-PAGE{0}-{1}",evpage,id);
|
|
|
|
// Creation de l'objet interne si innexistant
|
|
if(!eventlist.ContainsKey(id))
|
|
eventlist.Add(id,new internalEvent(id,page,evHC));
|
|
levent= eventlist[id]; //Dernier Evenement recu conserve pour menu
|
|
|
|
if(!lastValueOfSrc.ContainsKey(lnvk))
|
|
lastValueOfSrc[lnvk]= (byte)value;
|
|
|
|
|
|
EventData evData = new EventData();
|
|
evData.id = id;
|
|
evData.value = (byte)value;
|
|
evData.prev_value = lastValueOfSrc[lnvk];
|
|
if(evData.Equals(last)) continue;
|
|
last = evData;
|
|
|
|
if(eventlist[id].Bound) {
|
|
callback(evData);
|
|
}
|
|
|
|
lastValueOfSrc[lnvk] = (byte)value;
|
|
|
|
eventlist[id].StoredEvent = evS;
|
|
eventlist[id].LastKnownValue = (byte)value;
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
string IEventProvider.MenuName {
|
|
get {
|
|
return "Midi";
|
|
}
|
|
}
|
|
|
|
//TODO gerer pages et feeddback
|
|
|
|
static System.Text.RegularExpressions.Regex regexCtrlEventID = new System.Text.RegularExpressions.Regex(
|
|
@"MIDI-PAGE(?<page>\d+)-CTRL-C(?<chan>\d+)P(?<param>\d+)",
|
|
System.Text.RegularExpressions.RegexOptions.Compiled);
|
|
|
|
static System.Text.RegularExpressions.Regex regexPbEventID = new System.Text.RegularExpressions.Regex(
|
|
@"MIDI-PAGE(?<page>\d+)-PB-C(?<chan>\d+)",
|
|
System.Text.RegularExpressions.RegexOptions.Compiled);
|
|
|
|
static System.Text.RegularExpressions.Regex regexNoteEventID = new System.Text.RegularExpressions.Regex(
|
|
@"MIDI-PAGE(?<page>\d+)-NOTE-C(?<chan>\d+)N(?<note>\d+)",
|
|
System.Text.RegularExpressions.RegexOptions.Compiled);
|
|
|
|
string GetDescription (string eventId)
|
|
{
|
|
if(!eventlist.ContainsKey(eventId)) return null;
|
|
|
|
var res = regexCtrlEventID.Match (eventId);
|
|
if (res.Success) {
|
|
uint page = uint.Parse(res.Groups ["page"].Value);
|
|
byte chan = byte.Parse (res.Groups ["chan"].Value);
|
|
uint param = uint.Parse (res.Groups ["param"].Value);
|
|
return string.Format("Page {2} => Control-Change C({0}) Param-{1}",chan+1,param,page);
|
|
}
|
|
res = regexPbEventID.Match (eventId);
|
|
if (res.Success) {
|
|
uint page = uint.Parse(res.Groups ["page"].Value);
|
|
byte chan = byte.Parse (res.Groups ["chan"].Value);
|
|
return string.Format("Page {1} => PitchBend C({0})",chan+1,page);
|
|
}
|
|
res = regexNoteEventID.Match (eventId);
|
|
if (res.Success) {
|
|
uint page = uint.Parse(res.Groups ["page"].Value);
|
|
byte chan = byte.Parse (res.Groups ["chan"].Value);
|
|
byte note = byte.Parse (res.Groups ["note"].Value);
|
|
return string.Format("Page {2} => Note C({0}) Note-{1}",chan+1,note,page);
|
|
}
|
|
return eventId;
|
|
}
|
|
|
|
IFeedbackInfo IEventProvider.GetFeedbackInfo (string eventId)
|
|
{
|
|
if(!eventlist.ContainsKey(eventId)) return null;
|
|
|
|
var res = regexCtrlEventID.Match (eventId);
|
|
if (res.Success) {
|
|
byte chan = byte.Parse (res.Groups ["chan"].Value);
|
|
uint param = uint.Parse (res.Groups ["param"].Value);
|
|
return new ctrlfeedbackinfo (this, eventlist[eventId],chan, param);
|
|
}
|
|
res = regexPbEventID.Match (eventId);
|
|
if (res.Success) {
|
|
byte chan = byte.Parse (res.Groups ["chan"].Value);
|
|
return new pitchbendfeedbackinfo (this, eventlist[eventId], chan);
|
|
}
|
|
return null;
|
|
|
|
}
|
|
|
|
#endregion
|
|
|
|
}
|
|
}
|