1 files changed, 178 insertions, 0 deletions
diff --git a/src/Ryujinx.Audio.Backends.SoundIo/Native/SoundIo.cs b/src/Ryujinx.Audio.Backends.SoundIo/Native/SoundIo.cs
new file mode 100644
index 00000000..9c3e686d
--- /dev/null
+++ b/src/Ryujinx.Audio.Backends.SoundIo/Native/SoundIo.cs
@@ -0,0 +1,178 @@
+using Ryujinx.Common.Memory;
+using System;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Audio.Backends.SoundIo.Native
+{
+    public static partial class SoundIo
+    {
+        private const string LibraryName = "libsoundio";
+
+        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+        public unsafe delegate void OnDeviceChangeNativeDelegate(IntPtr ctx);
+
+        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+        public unsafe delegate void OnBackendDisconnectedDelegate(IntPtr ctx, SoundIoError err);
+
+        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+        public unsafe delegate void OnEventsSignalDelegate(IntPtr ctx);
+
+        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+        public unsafe delegate void EmitRtPrioWarningDelegate();
+
+        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+        public unsafe delegate void JackCallbackDelegate(IntPtr msg);
+
+        [StructLayout(LayoutKind.Sequential)]
+        public struct SoundIoStruct
+        {
+            public IntPtr UserData;
+            public IntPtr OnDeviceChange;
+            public IntPtr OnBackendDisconnected;
+            public IntPtr OnEventsSignal;
+            public SoundIoBackend CurrentBackend;
+            public IntPtr ApplicationName;
+            public IntPtr EmitRtPrioWarning;
+            public IntPtr JackInfoCallback;
+            public IntPtr JackErrorCallback;
+        }
+
+        public struct SoundIoChannelLayout
+        {
+            public IntPtr Name;
+            public int ChannelCount;
+            public Array24<SoundIoChannelId> Channels;
+
+            public static IntPtr GetDefault(int channelCount)
+            {
+                return soundio_channel_layout_get_default(channelCount);
+            }
+
+            public static unsafe SoundIoChannelLayout GetDefaultValue(int channelCount)
+            {
+                return Unsafe.AsRef<SoundIoChannelLayout>((SoundIoChannelLayout*)GetDefault(channelCount));
+            }
+        }
+
+        public struct SoundIoSampleRateRange
+        {
+            public int Min;
+            public int Max;
+        }
+
+        public struct SoundIoDevice
+        {
+            public IntPtr SoundIo;
+            public IntPtr Id;
+            public IntPtr Name;
+            public SoundIoDeviceAim Aim;
+            public IntPtr Layouts;
+            public int LayoutCount;
+            public SoundIoChannelLayout CurrentLayout;
+            public IntPtr Formats;
+            public int FormatCount;
+            public SoundIoFormat CurrentFormat;
+            public IntPtr SampleRates;
+            public int SampleRateCount;
+            public int SampleRateCurrent;
+            public double SoftwareLatencyMin;
+            public double SoftwareLatencyMax;
+            public double SoftwareLatencyCurrent;
+            public bool IsRaw;
+            public int RefCount;
+            public SoundIoError ProbeError;
+        }
+
+        public struct SoundIoOutStream
+        {
+            public IntPtr Device;
+            public SoundIoFormat Format;
+            public int SampleRate;
+            public SoundIoChannelLayout Layout;
+            public double SoftwareLatency;
+            public float Volume;
+            public IntPtr UserData;
+            public IntPtr WriteCallback;
+            public IntPtr UnderflowCallback;
+            public IntPtr ErrorCallback;
+            public IntPtr Name;
+            public bool NonTerminalHint;
+            public int BytesPerFrame;
+            public int BytesPerSample;
+            public SoundIoError LayoutError;
+        }
+
+        public struct SoundIoChannelArea
+        {
+            public IntPtr Pointer;
+            public int Step;
+        }
+
+        [LibraryImport(LibraryName)]
+        public static partial IntPtr soundio_create();
+
+        [LibraryImport(LibraryName)]
+        public static partial SoundIoError soundio_connect(IntPtr ctx);
+
+        [LibraryImport(LibraryName)]
+        public static partial void soundio_disconnect(IntPtr ctx);
+
+        [LibraryImport(LibraryName)]
+        public static partial void soundio_flush_events(IntPtr ctx);
+
+        [LibraryImport(LibraryName)]
+        public static partial int soundio_output_device_count(IntPtr ctx);
+
+        [LibraryImport(LibraryName)]
+        public static partial int soundio_default_output_device_index(IntPtr ctx);
+
+        [LibraryImport(LibraryName)]
+        public static partial IntPtr soundio_get_output_device(IntPtr ctx, int index);
+
+        [LibraryImport(LibraryName)]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        public static partial bool soundio_device_supports_format(IntPtr devCtx, SoundIoFormat format);
+
+        [LibraryImport(LibraryName)]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        public static partial bool soundio_device_supports_layout(IntPtr devCtx, IntPtr layout);
+
+        [LibraryImport(LibraryName)]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        public static partial bool soundio_device_supports_sample_rate(IntPtr devCtx, int sampleRate);
+
+        [LibraryImport(LibraryName)]
+        public static partial IntPtr soundio_outstream_create(IntPtr devCtx);
+
+        [LibraryImport(LibraryName)]
+        public static partial SoundIoError soundio_outstream_open(IntPtr outStreamCtx);
+
+        [LibraryImport(LibraryName)]
+        public static partial SoundIoError soundio_outstream_start(IntPtr outStreamCtx);
+
+        [LibraryImport(LibraryName)]
+        public static partial SoundIoError soundio_outstream_begin_write(IntPtr outStreamCtx, IntPtr areas, IntPtr frameCount);
+
+        [LibraryImport(LibraryName)]
+        public static partial SoundIoError soundio_outstream_end_write(IntPtr outStreamCtx);
+
+        [LibraryImport(LibraryName)]
+        public static partial SoundIoError soundio_outstream_pause(IntPtr devCtx, [MarshalAs(UnmanagedType.Bool)] bool pause);
+
+        [LibraryImport(LibraryName)]
+        public static partial SoundIoError soundio_outstream_set_volume(IntPtr devCtx, double volume);
+
+        [LibraryImport(LibraryName)]
+        public static partial void soundio_outstream_destroy(IntPtr streamCtx);
+
+        [LibraryImport(LibraryName)]
+        public static partial void soundio_destroy(IntPtr ctx);
+
+        [LibraryImport(LibraryName)]
+        public static partial IntPtr soundio_channel_layout_get_default(int channelCount);
+
+        [LibraryImport(LibraryName)]
+        public static partial IntPtr soundio_strerror(SoundIoError err);
+    }
+}