mcs/class/System/System.Media/Win32SoundPlayer.cs

   1 //
   2 // Mono.Audio.Win32SoundPlayer
   3 //
   4 // Authors:
   5 //    Gert Driesen (drieseng@users.sourceforge.net)
   6 //
   7 // Copyright (C) 2007 Gert Driesen
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 #if NET_2_0
  30
  31 using System;
  32 using System.IO;
  33 using System.Runtime.InteropServices;
  34
  35 namespace Mono.Audio
  36 {
  37         internal class Win32SoundPlayer : IDisposable
  38         {
  39                 public Win32SoundPlayer (Stream s)
  40                 {
  41                         if (s != null) {
  42                                 _buffer = new byte [s.Length];
  43                                 s.Read (_buffer, 0, _buffer.Length);
  44                         } else {
  45                                 _buffer = new byte [0];
  46                         }
  47                 }
  48
  49                 [DllImport ("winmm.dll", SetLastError = true)]
  50                 static extern bool PlaySound (
  51                         byte [] ptrToSound,
  52                         UIntPtr hmod,
  53                         SoundFlags flags);
  54
  55                 public Stream Stream {
  56                         set {
  57                                 Stop ();
  58                                 if (value != null) {
  59                                         _buffer = new byte [value.Length];
  60                                         value.Read (_buffer, 0, _buffer.Length);
  61                                 } else {
  62                                         _buffer = new byte [0];
  63                                 }
  64                         }
  65                 }
  66
  67                 public void Dispose ()
  68                 {
  69                         Dispose (true);
  70                         GC.SuppressFinalize (this);
  71                 }
  72
  73                 ~Win32SoundPlayer ()
  74                 {
  75                         Dispose (false);
  76                 }
  77
  78                 protected virtual void Dispose (bool disposing)
  79                 {
  80                         if (!_disposed) {
  81                                 Stop ();
  82                                 _disposed = true;
  83                         }
  84                 }
  85
  86                 public void Play ()
  87                 {
  88                         PlaySound (_buffer, UIntPtr.Zero, SoundFlags.SND_ASYNC |
  89                                 SoundFlags.SND_MEMORY);
  90                 }
  91
  92                 public void PlayLooping ()
  93                 {
  94                         PlaySound (_buffer, UIntPtr.Zero, SoundFlags.SND_MEMORY |
  95                                 SoundFlags.SND_LOOP | SoundFlags.SND_ASYNC);
  96                 }
  97
  98                 public void PlaySync ()
  99                 {
 100                         PlaySound (_buffer, UIntPtr.Zero, SoundFlags.SND_SYNC |
 101                                 SoundFlags.SND_MEMORY | SoundFlags.SND_NODEFAULT);
 102                 }
 103
 104                 public void Stop ()
 105                 {
 106                         PlaySound ((byte []) null, UIntPtr.Zero, SoundFlags.SND_SYNC);
 107                 }
 108
 109                 enum SoundFlags : uint
 110                 {
 111                         SND_SYNC = 0x0000,              // play synchronously
 112                         SND_ASYNC = 0x0001,             // play asynchronously
 113                         SND_NODEFAULT = 0x0002,         // do not play default sound if sound not found
 114                         SND_MEMORY = 0x0004,            // pszSound is loaded in memory
 115                         SND_LOOP = 0x0008,              // play repeatedly until next PlaySound
 116                         SND_FILENAME = 0x00020000,      // pszSound is a file name
 117                 }
 118
 119                 private byte [] _buffer;
 120                 private bool _disposed;
 121         }
 122 }
 123
 124 #endif