MidiInChecker2_Solution/MidiInChecker2_Project/PsuedoFDK/CInputManager.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.Text;
   4 using System.Diagnostics;
   5 using System.Runtime.InteropServices;
   6
   7 namespace MidiInChecker2
   8 {
   9         public class CInputManager : IDisposable
  10         {
  11                 // 定数
  12
  13                 public static int n通常音量 = 110;
  14
  15
  16                 // プロパティ
  17
  18                 public List<IInputDevice> list入力デバイス
  19                 {
  20                         get;
  21                         private set;
  22                 }
  23
  24                 public uint nInputMidiDevices;
  25                 public List<string> listStrMidiDevices;
  26
  27                 // コンストラクタ
  28
  29                 //public CInputManager( IntPtr hWnd )
  30                 public CInputManager()
  31                 {
  32                         this.list入力デバイス = new List<IInputDevice>( 10 );
  33                         this.listStrMidiDevices = new List<string>();
  34
  35                         this.proc = new CWin32.MidiInProc( this.MidiInCallback );
  36                         nInputMidiDevices = CWin32.midiInGetNumDevs();
  37                         Trace.TraceInformation( "MIDI入力デバイス数: {0}", nInputMidiDevices );
  38                         for ( uint i = 0; i < nInputMidiDevices; i++ )
  39                         {
  40                                 CInputMIDI item = new CInputMIDI( i );
  41                                 this.list入力デバイス.Add( item );
  42                                 CWin32.MIDIINCAPS lpMidiInCaps = new CWin32.MIDIINCAPS();
  43                                 uint retcode = CWin32.midiInGetDevCaps( i, ref lpMidiInCaps, (uint) Marshal.SizeOf( lpMidiInCaps ) );
  44                                 if ( retcode != 0 )
  45                                 {
  46                                         Trace.TraceError( "MIDI In: Device{0}: midiInDevCaps(): {1:X2}: ", i, retcode );
  47                                 }
  48                                 else if ( ( CWin32.midiInOpen( ref item.hMidiIn, i, this.proc, 0, 0x30000 ) == 0 ) && ( item.hMidiIn != 0 ) )
  49                                 {
  50                                         CWin32.midiInStart( item.hMidiIn );
  51                                         Trace.TraceInformation( "MIDI In: [{0}] \"{1}\" の入力受付を開始しました。", i, lpMidiInCaps.szPname );
  52                                         this.listStrMidiDevices.Add( "MIDI In [" + i + "] = " + lpMidiInCaps.szPname );
  53                                 }
  54                                 else
  55                                 {
  56                                         Trace.TraceError( "MIDI In: [{0}] \"{1}\" の入力受付の開始に失敗しました。", i, lpMidiInCaps.szPname );
  57                                 }
  58                         }
  59                 }
  60
  61
  62                 // メソッド
  63
  64                 public IInputDevice MidiIn( int ID )
  65                 {
  66                     foreach ( IInputDevice device in this.list入力デバイス )
  67                     {
  68                         if ( ( device.e入力デバイス種別 == E入力デバイス種別.MidiIn ) && ( device.ID == ID ) )
  69                         {
  70                             return device;
  71                         }
  72                     }
  73                     return null;
  74                 }
  75                 public void tポーリング( bool bWindowがアクティブ中, bool bバッファ入力を使用する )
  76                 {
  77                         lock ( this.objMidiIn排他用 )
  78                         {
  79                                 for ( int i = this.list入力デバイス.Count - 1; i >= 0; i-- )      // #24016 2011.1.6 yyagi: change not to use "foreach" to avoid InvalidOperation exception by Remove().
  80                                 {
  81                                         IInputDevice device = this.list入力デバイス[ i ];
  82                                         try
  83                                         {
  84                                                 device.tポーリング( bWindowがアクティブ中, bバッファ入力を使用する );
  85                                         }
  86                                         catch ( Exception )                                                     // #24016 2011.1.6 yyagi: catch exception for unplugging USB joystick, and remove the device object from the polling items.
  87                                         {
  88                                                 this.list入力デバイス.Remove( device );
  89                                                 device.Dispose();
  90                                                 Trace.TraceError( "tポーリング時に対象deviceが抜かれており例外発生。同deviceをポーリング対象からRemoveしました。" );
  91                                         }
  92                                 }
  93                         }
  94                 }
  95
  96                 #region [ IDisposable＋α ]
  97                 //-----------------
  98                 public void Dispose()
  99                 {
 100                         this.Dispose( true );
 101                 }
 102                 public void Dispose( bool disposeManagedObjects )
 103                 {
 104                         if ( !this.bDisposed済み )
 105                         {
 106                                 if ( disposeManagedObjects )
 107                                 {
 108                                         foreach ( IInputDevice device in this.list入力デバイス )
 109                                         {
 110                                                 CInputMIDI tmidi = device as CInputMIDI;
 111                                                 if ( tmidi != null )
 112                                                 {
 113                                                         CWin32.midiInStop( tmidi.hMidiIn );
 114                                                         CWin32.midiInReset( tmidi.hMidiIn );
 115                                                         CWin32.midiInClose( tmidi.hMidiIn );
 116                                                         Trace.TraceInformation( "MIDI In: [{0}] を停止しました。", tmidi.ID );
 117                                                 }
 118                                         }
 119                                         foreach ( IInputDevice device2 in this.list入力デバイス )
 120                                         {
 121                                                 device2.Dispose();
 122                                         }
 123                                         lock ( this.objMidiIn排他用 )
 124                                         {
 125                                                 this.list入力デバイス.Clear();
 126                                         }
 127
 128                                         //this.directInput.Dispose();
 129
 130                                         //if ( this.timer != null )
 131                                         //{
 132                                         //    this.timer.Dispose();
 133                                         //    this.timer = null;
 134                                         //}
 135                                 }
 136                                 this.bDisposed済み = true;
 137                         }
 138                 }
 139                 ~CInputManager()
 140                 {
 141                         this.Dispose( false );
 142                         GC.KeepAlive( this );
 143                 }
 144                 //-----------------
 145                 #endregion
 146
 147
 148                 // その他
 149
 150                 #region [ private ]
 151                 //-----------------
 152                 private bool bDisposed済み;
 153                 private List<uint> listHMIDIIN = new List<uint>( 8 );
 154                 private object objMidiIn排他用 = new object();
 155                 private CWin32.MidiInProc proc;
 156
 157                 private void MidiInCallback( uint hMidiIn, uint wMsg, int dwInstance, int dwParam1, int dwParam2 )
 158                 {
 159                         int p = dwParam1 & 0xF0;
 160                         if ( wMsg != CWin32.MIM_DATA || ( p != 0x80 && p != 0x90 ) )
 161                                 return;
 162
 163                         //long time = this.timer.nシステム時刻;   // lock前に取得
 164                         long time = System.DateTime.Now.Ticks;  // lock前に取得
 165
 166                         lock ( this.objMidiIn排他用 )
 167                         {
 168                                 if ( ( this.list入力デバイス != null ) && ( this.list入力デバイス.Count != 0 ) )
 169                                 {
 170                                         foreach ( IInputDevice device in this.list入力デバイス )
 171                                         {
 172                                                 CInputMIDI tmidi = device as CInputMIDI;
 173                                                 if ( ( tmidi != null ) && ( tmidi.hMidiIn == hMidiIn ) )
 174                                                 {
 175                                                         tmidi.tメッセージからMIDI信号のみ受信( wMsg, dwInstance, dwParam1, dwParam2, time );
 176                                                         break;
 177                                                 }
 178                                         }
 179                                 }
 180                         }
 181                 }
 182                 //-----------------
 183                 #endregion
 184         }
 185 }