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ryujinx-final/Ryujinx.Audio.Backends.SoundIo/Native/libsoundio/SoundIO.cs
Mary f556c80d02
Haydn: Part 1 (#2007)
* Haydn: Part 1

Based on my reverse of audio 11.0.0.

As always, core implementation under LGPLv3 for the same reasons as for Amadeus.

This place the bases of a more flexible audio system while making audout & audin accurate.

This have the following improvements:
- Complete reimplementation of audout and audin.
- Audin currently only have a dummy backend.
- Dramatically reduce CPU usage by up to 50% in common cases (SoundIO and OpenAL).
- Audio Renderer now can output to 5.1 devices when supported.
- Audio Renderer init its backend on demand instead of keeping two up all the time.
- All backends implementation are now in their own project.
- Ryujinx.Audio.Renderer was renamed Ryujinx.Audio and was refactored because of this.

As a note, games having issues with OpenAL haven't improved and will not
because of OpenAL design (stopping when buffers finish playing causing
possible audio "pops" when buffers are very small).

* Update for latest hexkyz's edits on Switchbrew

* audren: Rollback channel configuration changes

* Address gdkchan's comments

* Fix typo in OpenAL backend driver

* Address last comments

* Fix a nit

* Address gdkchan's comments
2021-02-26 01:11:56 +01:00

386 lines
No EOL
12 KiB
C#

using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
namespace SoundIOSharp
{
public class SoundIO : IDisposable
{
Pointer<SoundIo> handle;
public SoundIO()
{
handle = Natives.soundio_create();
}
internal SoundIO(Pointer<SoundIo> handle)
{
this.handle = handle;
}
public void Dispose ()
{
foreach (var h in allocated_hglobals)
{
Marshal.FreeHGlobal(h);
}
Natives.soundio_destroy(handle);
}
// Equality (based on handle)
public override bool Equals(object other)
{
var d = other as SoundIO;
return d != null && this.handle == d.handle;
}
public override int GetHashCode()
{
return (int)(IntPtr)handle;
}
public static bool operator == (SoundIO obj1, SoundIO obj2)
{
return obj1 is null ? obj2 is null : obj1.Equals(obj2);
}
public static bool operator != (SoundIO obj1, SoundIO obj2)
{
return obj1 is null ? obj2 is object : !obj1.Equals(obj2);
}
// fields
// FIXME: this should be taken care in more centralized/decent manner... we don't want to write
// this kind of code anywhere we need string marshaling.
List<IntPtr> allocated_hglobals = new List<IntPtr>();
public string ApplicationName {
get { return Marshal.PtrToStringAnsi(Marshal.ReadIntPtr(handle, app_name_offset)); }
set
{
unsafe
{
var existing = Marshal.ReadIntPtr(handle, app_name_offset);
if (allocated_hglobals.Contains (existing))
{
allocated_hglobals.Remove(existing);
Marshal.FreeHGlobal(existing);
}
var ptr = Marshal.StringToHGlobalAnsi(value);
Marshal.WriteIntPtr(handle, app_name_offset, ptr);
allocated_hglobals.Add(ptr);
}
}
}
static readonly int app_name_offset = (int)Marshal.OffsetOf<SoundIo>("app_name");
public SoundIOBackend CurrentBackend
{
get { return (SoundIOBackend)Marshal.ReadInt32(handle, current_backend_offset); }
}
static readonly int current_backend_offset = (int)Marshal.OffsetOf<SoundIo>("current_backend");
// emit_rtprio_warning
public Action EmitRealtimePriorityWarning
{
get { return emit_rtprio_warning; }
set
{
emit_rtprio_warning = value;
var ptr = Marshal.GetFunctionPointerForDelegate(on_devices_change);
Marshal.WriteIntPtr(handle, emit_rtprio_warning_offset, ptr);
}
}
static readonly int emit_rtprio_warning_offset = (int)Marshal.OffsetOf<SoundIo>("emit_rtprio_warning");
Action emit_rtprio_warning;
// jack_error_callback
public Action<string> JackErrorCallback
{
get { return jack_error_callback; }
set
{
jack_error_callback = value;
if (value == null)
{
jack_error_callback = null;
}
else
{
jack_error_callback_native = msg => jack_error_callback(msg);
}
var ptr = Marshal.GetFunctionPointerForDelegate(jack_error_callback_native);
Marshal.WriteIntPtr(handle, jack_error_callback_offset, ptr);
}
}
static readonly int jack_error_callback_offset = (int)Marshal.OffsetOf<SoundIo>("jack_error_callback");
Action<string> jack_error_callback;
delegate void jack_error_delegate(string message);
jack_error_delegate jack_error_callback_native;
// jack_info_callback
public Action<string> JackInfoCallback
{
get { return jack_info_callback; }
set
{
jack_info_callback = value;
if (value == null)
{
jack_info_callback = null;
}
else
{
jack_info_callback_native = msg => jack_info_callback(msg);
}
var ptr = Marshal.GetFunctionPointerForDelegate(jack_info_callback_native);
Marshal.WriteIntPtr(handle, jack_info_callback_offset, ptr);
}
}
static readonly int jack_info_callback_offset = (int)Marshal.OffsetOf<SoundIo>("jack_info_callback");
Action<string> jack_info_callback;
delegate void jack_info_delegate(string message);
jack_info_delegate jack_info_callback_native;
// on_backend_disconnect
public Action<int> OnBackendDisconnect
{
get { return on_backend_disconnect; }
set
{
on_backend_disconnect = value;
if (value == null)
{
on_backend_disconnect_native = null;
}
else
{
on_backend_disconnect_native = (sio, err) => on_backend_disconnect(err);
}
var ptr = Marshal.GetFunctionPointerForDelegate(on_backend_disconnect_native);
Marshal.WriteIntPtr(handle, on_backend_disconnect_offset, ptr);
}
}
static readonly int on_backend_disconnect_offset = (int)Marshal.OffsetOf<SoundIo>("on_backend_disconnect");
Action<int> on_backend_disconnect;
delegate void on_backend_disconnect_delegate(IntPtr handle, int errorCode);
on_backend_disconnect_delegate on_backend_disconnect_native;
// on_devices_change
public Action OnDevicesChange
{
get { return on_devices_change; }
set
{
on_devices_change = value;
if (value == null)
{
on_devices_change_native = null;
}
else
{
on_devices_change_native = sio => on_devices_change();
}
var ptr = Marshal.GetFunctionPointerForDelegate(on_devices_change_native);
Marshal.WriteIntPtr(handle, on_devices_change_offset, ptr);
}
}
static readonly int on_devices_change_offset = (int)Marshal.OffsetOf<SoundIo>("on_devices_change");
Action on_devices_change;
delegate void on_devices_change_delegate(IntPtr handle);
on_devices_change_delegate on_devices_change_native;
// on_events_signal
public Action OnEventsSignal
{
get { return on_events_signal; }
set
{
on_events_signal = value;
if (value == null)
{
on_events_signal_native = null;
}
else
{
on_events_signal_native = sio => on_events_signal();
}
var ptr = Marshal.GetFunctionPointerForDelegate(on_events_signal_native);
Marshal.WriteIntPtr(handle, on_events_signal_offset, ptr);
}
}
static readonly int on_events_signal_offset = (int)Marshal.OffsetOf<SoundIo>("on_events_signal");
Action on_events_signal;
delegate void on_events_signal_delegate(IntPtr handle);
on_events_signal_delegate on_events_signal_native;
// functions
public int BackendCount
{
get { return Natives.soundio_backend_count(handle); }
}
public int InputDeviceCount
{
get { return Natives.soundio_input_device_count(handle); }
}
public int OutputDeviceCount
{
get { return Natives.soundio_output_device_count(handle); }
}
public int DefaultInputDeviceIndex
{
get { return Natives.soundio_default_input_device_index(handle); }
}
public int DefaultOutputDeviceIndex
{
get { return Natives.soundio_default_output_device_index(handle); }
}
public SoundIOBackend GetBackend(int index)
{
return (SoundIOBackend)Natives.soundio_get_backend(handle, index);
}
public SoundIODevice GetInputDevice(int index)
{
return new SoundIODevice(Natives.soundio_get_input_device(handle, index));
}
public SoundIODevice GetOutputDevice(int index)
{
return new SoundIODevice(Natives.soundio_get_output_device(handle, index));
}
public void Connect()
{
var ret = (SoundIoError)Natives.soundio_connect(handle);
if (ret != SoundIoError.SoundIoErrorNone)
{
throw new SoundIOException(ret);
}
}
public void ConnectBackend(SoundIOBackend backend)
{
var ret = (SoundIoError)Natives.soundio_connect_backend(handle, (SoundIoBackend)backend);
if (ret != SoundIoError.SoundIoErrorNone)
{
throw new SoundIOException(ret);
}
}
public void Disconnect()
{
Natives.soundio_disconnect(handle);
}
public void FlushEvents()
{
Natives.soundio_flush_events(handle);
}
public void WaitEvents()
{
Natives.soundio_wait_events(handle);
}
public void Wakeup()
{
Natives.soundio_wakeup(handle);
}
public void ForceDeviceScan()
{
Natives.soundio_force_device_scan(handle);
}
public SoundIORingBuffer CreateRingBuffer(int capacity)
{
return new SoundIORingBuffer(Natives.soundio_ring_buffer_create(handle, capacity));
}
// static methods
public static string VersionString
{
get { return Marshal.PtrToStringAnsi(Natives.soundio_version_string()); }
}
public static int VersionMajor
{
get { return Natives.soundio_version_major(); }
}
public static int VersionMinor
{
get { return Natives.soundio_version_minor(); }
}
public static int VersionPatch
{
get { return Natives.soundio_version_patch(); }
}
public static string GetBackendName(SoundIOBackend backend)
{
return Marshal.PtrToStringAnsi(Natives.soundio_backend_name((SoundIoBackend)backend));
}
public static bool HaveBackend(SoundIOBackend backend)
{
return Natives.soundio_have_backend((SoundIoBackend)backend);
}
public static int GetBytesPerSample(SoundIOFormat format)
{
return Natives.soundio_get_bytes_per_sample((SoundIoFormat)format);
}
public static int GetBytesPerFrame(SoundIOFormat format, int channelCount)
{
return Natives.soundio_get_bytes_per_frame((SoundIoFormat)format, channelCount);
}
public static int GetBytesPerSecond(SoundIOFormat format, int channelCount, int sampleRate)
{
return Natives.soundio_get_bytes_per_second((SoundIoFormat)format, channelCount, sampleRate);
}
public static string GetSoundFormatName(SoundIOFormat format)
{
return Marshal.PtrToStringAnsi(Natives.soundio_format_string((SoundIoFormat)format));
}
}
}