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https://github.com/ryujinx-mirror/ryujinx.git
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403e67d983
* audio: Rewrite SoundIo bindings This rewrite SoundIo bindings to be safer and not a pedantic autogenerated mess. * Address comments * Switch DllImport to LibraryImport * Address gdkchan's comment
107 lines
2.9 KiB
C#
107 lines
2.9 KiB
C#
using System;
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using System.Reflection.Metadata;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Threading;
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using static Ryujinx.Audio.Backends.SoundIo.Native.SoundIo;
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namespace Ryujinx.Audio.Backends.SoundIo.Native
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{
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public class SoundIoContext : IDisposable
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{
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private IntPtr _context;
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private Action<SoundIoError> _onBackendDisconnect;
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private OnBackendDisconnectedDelegate _onBackendDisconnectNative;
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public IntPtr Context => _context;
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internal SoundIoContext(IntPtr context)
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{
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_context = context;
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_onBackendDisconnect = null;
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_onBackendDisconnectNative = null;
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}
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public SoundIoError Connect() => soundio_connect(_context);
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public void Disconnect() => soundio_disconnect(_context);
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public void FlushEvents() => soundio_flush_events(_context);
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public int OutputDeviceCount => soundio_output_device_count(_context);
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public int DefaultOutputDeviceIndex => soundio_default_output_device_index(_context);
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public Action<SoundIoError> OnBackendDisconnect
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{
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get { return _onBackendDisconnect; }
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set
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{
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_onBackendDisconnect = value;
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if (_onBackendDisconnect == null)
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{
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_onBackendDisconnectNative = null;
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}
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else
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{
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_onBackendDisconnectNative = (ctx, err) => _onBackendDisconnect(err);
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}
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GetContext().OnBackendDisconnected = Marshal.GetFunctionPointerForDelegate(_onBackendDisconnectNative);
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}
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}
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private ref SoundIoStruct GetContext()
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{
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unsafe
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{
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return ref Unsafe.AsRef<SoundIoStruct>((SoundIoStruct*)_context);
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}
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}
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public SoundIoDeviceContext GetOutputDevice(int index)
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{
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IntPtr deviceContext = soundio_get_output_device(_context, index);
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if (deviceContext == IntPtr.Zero)
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{
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return null;
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}
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return new SoundIoDeviceContext(deviceContext);
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}
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public static SoundIoContext Create()
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{
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IntPtr context = soundio_create();
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if (context == IntPtr.Zero)
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{
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return null;
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}
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return new SoundIoContext(context);
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}
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protected virtual void Dispose(bool disposing)
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{
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IntPtr currentContext = Interlocked.Exchange(ref _context, IntPtr.Zero);
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if (currentContext != IntPtr.Zero)
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{
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soundio_destroy(currentContext);
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}
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}
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public void Dispose()
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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~SoundIoContext()
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{
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Dispose(false);
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}
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}
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}
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