fix static sound loading + window title

src/Audio/AudioDevice.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Runtime.InteropServices;
 
 namespace MoonWorks.Audio
@@ -17,6 +18,8 @@ namespace MoonWorks.Audio
 
         private FAudio.FAudioVoiceSends reverbSends;
 
+        private readonly List<WeakReference<DynamicSoundInstance>> dynamicSoundInstances = new List<WeakReference<DynamicSoundInstance>>();
+
         public unsafe AudioDevice()
         {
             FAudio.FAudioCreate(out var handle, 0, 0);
@@ -177,16 +180,39 @@ namespace MoonWorks.Audio
 
             /* Init reverb sends */
 
-            reverbSends = new FAudio.FAudioVoiceSends();
+            reverbSends = new FAudio.FAudioVoiceSends
-            reverbSends.SendCount = 2;
+            {
-            reverbSends.pSends = Marshal.AllocHGlobal(
+                SendCount = 2,
+                pSends = Marshal.AllocHGlobal(
                     2 * Marshal.SizeOf<FAudio.FAudioSendDescriptor>()
-            );
+                )
+            };
             FAudio.FAudioSendDescriptor* sendDesc = (FAudio.FAudioSendDescriptor*) reverbSends.pSends;
             sendDesc[0].Flags = 0;
             sendDesc[0].pOutputVoice = MasteringVoice;
             sendDesc[1].Flags = 0;
             sendDesc[1].pOutputVoice = ReverbVoice;
         }
+
+        public void Update()
+        {
+            for (var i = dynamicSoundInstances.Count - 1; i >= 0; i--)
+            {
+                var weakReference = dynamicSoundInstances[i];
+                if (weakReference.TryGetTarget(out var dynamicSoundInstance))
+                {
+                    dynamicSoundInstance.Update();
+                }
+                else
+                {
+                    dynamicSoundInstances.RemoveAt(i);
+                }
+            }
+        }
+
+        internal void AddDynamicSoundInstance(DynamicSoundInstance instance)
+        {
+            dynamicSoundInstances.Add(new WeakReference<DynamicSoundInstance>(instance));
+        }
     }
 }

src/Audio/DynamicSound.cs

@@ -4,10 +4,13 @@ using System.IO;
 namespace MoonWorks.Audio
 {
     /// <summary>
-    /// For streaming long playback.
+    /// For streaming long playback. Reads an OGG file.
     /// </summary>
     public class DynamicSound : Sound, IDisposable
     {
+        internal override FAudio.FAudioWaveFormatEx Format { get; }
+
+        // FIXME: what should this value be?
         public const int BUFFER_SIZE = 1024 * 128;
 
         internal IntPtr FileHandle { get; }
@@ -15,9 +18,7 @@ namespace MoonWorks.Audio
 
         private bool IsDisposed;
 
-        // FIXME: what should this value be?
+        public DynamicSound(AudioDevice device, FileInfo fileInfo) : base(device)
-
-        public DynamicSound(FileInfo fileInfo, ushort channels, uint samplesPerSecond) : base(channels, samplesPerSecond)
         {
             FileHandle = FAudio.stb_vorbis_open_filename(fileInfo.FullName, out var error, IntPtr.Zero);
 
@@ -28,6 +29,26 @@ namespace MoonWorks.Audio
             }
 
             Info = FAudio.stb_vorbis_get_info(FileHandle);
+
+            var blockAlign = (ushort)(4 * Info.channels);
+
+            Format = new FAudio.FAudioWaveFormatEx
+            {
+                wFormatTag = 3,
+                wBitsPerSample = 32,
+                nChannels = (ushort) Info.channels,
+                nBlockAlign = blockAlign,
+                nSamplesPerSec = Info.sample_rate,
+                nAvgBytesPerSec = blockAlign * Info.sample_rate,
+                cbSize = 0
+            };
+        }
+
+        public DynamicSoundInstance CreateInstance()
+        {
+            var instance = new DynamicSoundInstance(Device, this, false);
+            Device.AddDynamicSoundInstance(instance);
+            return instance;
         }
 
         protected virtual void Dispose(bool disposing)

src/Audio/DynamicSoundInstance.cs

@@ -16,7 +16,7 @@ namespace MoonWorks.Audio
 
         public override SoundState State { get; protected set; }
 
-        public DynamicSoundInstance(
+        internal DynamicSoundInstance(
             AudioDevice device,
             DynamicSound parent,
             bool is3D
@@ -26,6 +26,8 @@ namespace MoonWorks.Audio
             queuedSizes = new List<uint>();
 
             buffer = new float[DynamicSound.BUFFER_SIZE];
+
+            State = SoundState.Stopped;
         }
 
         public void Play()
@@ -60,7 +62,7 @@ namespace MoonWorks.Audio
             ClearBuffers();
         }
 
-        private void Update()
+        internal void Update()
         {
             if (State != SoundState.Playing)
             {
@@ -117,7 +119,7 @@ namespace MoonWorks.Audio
                 buffer.Length
             );
 
-            IntPtr next = Marshal.AllocHGlobal(buffer.Length);
+            IntPtr next = Marshal.AllocHGlobal(buffer.Length * sizeof(float));
             Marshal.Copy(buffer, 0, next, buffer.Length);
 
             lock (queuedBuffers)

src/Audio/Sound.cs

@@ -2,25 +2,12 @@ namespace MoonWorks.Audio
 {
     public abstract class Sound
     {
-        internal FAudio.FAudioWaveFormatEx Format { get; }
+        internal AudioDevice Device { get; }
+        internal abstract FAudio.FAudioWaveFormatEx Format { get; }
 
-        /* NOTE: we only support float decoding! WAV sucks! */
+        public Sound(AudioDevice device)
-        public Sound(
-            ushort channels,
-            uint samplesPerSecond
-        ) {
-            var blockAlign = (ushort) (4 * channels);
-
-            Format = new FAudio.FAudioWaveFormatEx
         {
-                wFormatTag = 3,
+            Device = device;
-                wBitsPerSample = 32,
-                nChannels = channels,
-                nBlockAlign = blockAlign,
-                nSamplesPerSec = samplesPerSecond,
-                nAvgBytesPerSec = blockAlign * samplesPerSecond,
-                cbSize = 0
-            };
         }
     }
 }

src/Audio/StaticSound.cs

@@ -6,13 +6,15 @@ namespace MoonWorks.Audio
 {
     public class StaticSound : Sound, IDisposable
     {
+        internal override FAudio.FAudioWaveFormatEx Format { get; }
         internal FAudio.FAudioBuffer Handle;
-        private bool IsDisposed;
 
         public uint LoopStart { get; set; } = 0;
         public uint LoopLength { get; set; } = 0;
 
-        public static StaticSound FromOgg(FileInfo fileInfo)
+        private bool IsDisposed;
+
+        public static StaticSound LoadOgg(AudioDevice device, FileInfo fileInfo)
         {
             var filePointer = FAudio.stb_vorbis_open_filename(fileInfo.FullName, out var error, IntPtr.Zero);
 
@@ -21,12 +23,20 @@ namespace MoonWorks.Audio
                 throw new AudioLoadException("Error loading file!");
             }
             var info = FAudio.stb_vorbis_get_info(filePointer);
-            var bufferSize =  (uint)(info.sample_rate * info.channels);
+            var bufferSize = FAudio.stb_vorbis_stream_length_in_samples(filePointer);
             var buffer = new float[bufferSize];
 
+            FAudio.stb_vorbis_get_samples_float_interleaved(
+                filePointer,
+                info.channels,
+                buffer,
+                (int) bufferSize
+            );
+
             FAudio.stb_vorbis_close(filePointer);
 
             return new StaticSound(
+                device,
                 buffer,
                 0,
                 (ushort) info.channels,
@@ -35,25 +45,42 @@ namespace MoonWorks.Audio
         }
 
         public StaticSound(
+            AudioDevice device,
             float[] buffer,
             uint bufferOffset,
             ushort channels,
             uint samplesPerSecond
-        ) : base(channels, samplesPerSecond) {
+        ) : base(device) {
-            var bufferLength = 4 * buffer.Length;
+            var blockAlign = (ushort)(4 * channels);
+
+            Format = new FAudio.FAudioWaveFormatEx
+            {
+                wFormatTag = 3,
+                wBitsPerSample = 32,
+                nChannels = channels,
+                nBlockAlign = blockAlign,
+                nSamplesPerSec = samplesPerSecond,
+                nAvgBytesPerSec = blockAlign * samplesPerSecond
+            };
+
+            var bufferLengthInBytes = sizeof(float) * buffer.Length;
 
             Handle = new FAudio.FAudioBuffer();
             Handle.Flags = FAudio.FAUDIO_END_OF_STREAM;
             Handle.pContext = IntPtr.Zero;
-            Handle.AudioBytes = (uint) bufferLength;
+            Handle.AudioBytes = (uint) bufferLengthInBytes;
-            Handle.pAudioData = Marshal.AllocHGlobal((int) bufferLength);
+            Handle.pAudioData = Marshal.AllocHGlobal(bufferLengthInBytes);
-            Marshal.Copy(buffer, (int) bufferOffset, Handle.pAudioData, (int) bufferLength);
+            Marshal.Copy(buffer, (int) bufferOffset, Handle.pAudioData, buffer.Length);
             Handle.PlayBegin = 0;
-            Handle.PlayLength = (
+            Handle.PlayLength = 0;
-                Handle.AudioBytes /
+
-                (uint) Format.nChannels /
+            LoopStart = 0;
-                (uint) (Format.wBitsPerSample / 8)
+            LoopLength = 0;
-            );
+        }
+
+        public StaticSoundInstance CreateInstance()
+        {
+            return new StaticSoundInstance(Device, this, false, true);
         }
 
         protected virtual void Dispose(bool disposing)

src/Audio/StaticSoundInstance.cs

@@ -38,6 +38,7 @@ namespace MoonWorks.Audio
         ) : base(device, parent, is3D)
         {
             Loop = loop;
+            State = SoundState.Stopped;
         }
 
         public void Play()

src/Game.cs

@@ -82,6 +82,7 @@ namespace MoonWorks
                         HandleSDLEvents();
 
                         Input.Update();
+                        AudioDevice.Update();
 
                         Update(timestep);
 

src/Window.cs

@@ -24,7 +24,7 @@ namespace MoonWorks
             ScreenMode = windowCreateInfo.ScreenMode;
 
             Handle = SDL.SDL_CreateWindow(
-                "MoonWorks.GraphicsTest",
+                windowCreateInfo.WindowTitle,
                 SDL.SDL_WINDOWPOS_UNDEFINED,
                 SDL.SDL_WINDOWPOS_UNDEFINED,
                 (int)windowCreateInfo.WindowWidth,

src/WindowCreateInfo.cs

@@ -2,6 +2,7 @@ namespace MoonWorks
 {
     public struct WindowCreateInfo
     {
+        public string WindowTitle;
         public uint WindowWidth;
         public uint WindowHeight;
         public ScreenMode ScreenMode;