Added snocrash' reverb EFX example.

Source/Examples/OpenAL/EFXReverb.cs

@@ -0,0 +1,95 @@
+#region License
+//
+// The Open Toolkit Library License
+//
+// Copyright (c) 2006 - 2009 the Open Toolkit library.
+//
+// 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
+
+using System;
+using System.Threading;
+using System.IO;
+using OpenTK.Audio;
+
+namespace Examples
+{
+    [Example("EFX: Reverb", ExampleCategory.OpenAL)]
+    public class ReverbExample
+    {
+        static readonly string filename = Path.Combine(Path.Combine("Data", "Audio"), "the_ring_that_fell.wav");
+
+        public static void Main()
+        {
+            using (AudioContext context = new AudioContext())
+            using (AudioReader sound = new AudioReader(filename))
+            {
+                Console.WriteLine("Testing WaveReader({0}).ReadToEnd()", filename);
+
+                EffectsExtension efx = new EffectsExtension();
+
+                int buffer = AL.GenBuffer();
+                int source = AL.GenSource();
+                int state;
+
+                int effect = efx.GenEffect();
+                int slot = efx.GenAuxiliaryEffectSlot();
+
+                efx.BindEffect(effect, EfxEffectType.Reverb);
+                efx.Effect(effect, EfxEffectf.ReverbDecayTime, 3.0f);
+                efx.Effect(effect, EfxEffectf.ReverbDecayHFRatio, 0.91f);
+                efx.Effect(effect, EfxEffectf.ReverbDensity, 0.7f);
+                efx.Effect(effect, EfxEffectf.ReverbDiffusion, 0.9f);
+                efx.Effect(effect, EfxEffectf.ReverbRoomRolloffFactor, 3.1f);
+                efx.Effect(effect, EfxEffectf.ReverbReflectionsGain, 0.723f);
+                efx.Effect(effect, EfxEffectf.ReverbReflectionsDelay, 0.03f);
+                efx.Effect(effect, EfxEffectf.ReverbGain, 0.23f);
+
+                efx.AuxiliaryEffectSlot(slot, EfxAuxiliaryi.EffectslotEffect, effect);
+
+                AL.BufferData(buffer, sound.ReadToEnd());
+
+                AL.Source(source, ALSourcef.ConeOuterGain, 1.0f);
+                AL.Source(source, ALSourcei.Buffer, buffer);
+                AL.SourcePlay(source);
+
+                Console.Write("Playing");
+
+                // Query the source to find out when it stops playing.
+                do
+                {
+                    Thread.Sleep(250);
+                    Console.Write(".");
+                    AL.GetSource(source, ALGetSourcei.SourceState, out state);
+                }
+                while ((ALSourceState)state == ALSourceState.Playing);
+
+                Console.WriteLine();
+
+                AL.SourceStop(source);
+                AL.DeleteSource(source);
+                AL.DeleteBuffer(buffer);
+                efx.DeleteEffect(effect);
+                efx.DeleteAuxiliaryEffectSlot(slot);
+            }
+        }
+    }
+}