ryujinx/Ryujinx.Audio.Backends.SoundIo/Native/libsoundio/SoundIODevice.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

267 lines
10 KiB
C#

using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
namespace SoundIOSharp
{
public class SoundIODevice
{
public static SoundIOChannelLayout BestMatchingChannelLayout(SoundIODevice device1, SoundIODevice device2)
{
var ptr1 = Marshal.ReadIntPtr(device1.handle, layouts_offset);
var ptr2 = Marshal.ReadIntPtr(device2.handle, layouts_offset);
return new SoundIOChannelLayout(Natives.soundio_best_matching_channel_layout(ptr1, device1.LayoutCount, ptr2, device2.LayoutCount));
}
internal SoundIODevice(Pointer<SoundIoDevice> handle)
{
this.handle = handle;
}
readonly Pointer<SoundIoDevice> handle;
// Equality (based on handle and native func)
public override bool Equals(object other)
{
var d = other as SoundIODevice;
return d != null && (this.handle == d.handle || Natives.soundio_device_equal (this.handle, d.handle));
}
public override int GetHashCode()
{
return (int)(IntPtr)handle;
}
public static bool operator == (SoundIODevice obj1, SoundIODevice obj2)
{
return obj1 is null ? obj2 is null : obj1.Equals(obj2);
}
public static bool operator != (SoundIODevice obj1, SoundIODevice obj2)
{
return obj1 is null ? obj2 is object : !obj1.Equals(obj2);
}
// fields
public SoundIODeviceAim Aim
{
get { return (SoundIODeviceAim)Marshal.ReadInt32(handle, aim_offset); }
}
static readonly int aim_offset = (int)Marshal.OffsetOf<SoundIoDevice>("aim");
public SoundIOFormat CurrentFormat
{
get { return (SoundIOFormat)Marshal.ReadInt32(handle, current_format_offset); }
}
static readonly int current_format_offset = (int)Marshal.OffsetOf<SoundIoDevice>("current_format");
public SoundIOChannelLayout CurrentLayout
{
get { return new SoundIOChannelLayout((IntPtr)handle + current_layout_offset); }
}
static readonly int current_layout_offset = (int)Marshal.OffsetOf<SoundIoDevice>("current_layout");
public int FormatCount
{
get { return Marshal.ReadInt32(handle, format_count_offset); }
}
static readonly int format_count_offset = (int)Marshal.OffsetOf<SoundIoDevice>("format_count");
public IEnumerable<SoundIOFormat> Formats
{
get
{
var ptr = Marshal.ReadIntPtr(handle, formats_offset);
for (int i = 0; i < FormatCount; i++)
{
yield return (SoundIOFormat)Marshal.ReadInt32(ptr, i);
}
}
}
static readonly int formats_offset = (int)Marshal.OffsetOf<SoundIoDevice>("formats");
public string Id
{
get { return Marshal.PtrToStringAnsi(Marshal.ReadIntPtr(handle, id_offset)); }
}
static readonly int id_offset = (int)Marshal.OffsetOf<SoundIoDevice>("id");
public bool IsRaw
{
get { return Marshal.ReadInt32(handle, is_raw_offset) != 0; }
}
static readonly int is_raw_offset = (int)Marshal.OffsetOf<SoundIoDevice>("is_raw");
public int LayoutCount
{
get { return Marshal.ReadInt32(handle, layout_count_offset); }
}
static readonly int layout_count_offset = (int)Marshal.OffsetOf<SoundIoDevice>("layout_count");
public IEnumerable<SoundIOChannelLayout> Layouts
{
get
{
var ptr = Marshal.ReadIntPtr (handle, layouts_offset);
for (int i = 0; i < LayoutCount; i++)
{
yield return new SoundIOChannelLayout(ptr + i * Marshal.SizeOf<SoundIoChannelLayout>());
}
}
}
static readonly int layouts_offset = (int)Marshal.OffsetOf<SoundIoDevice>("layouts");
public string Name
{
get { return Marshal.PtrToStringAnsi(Marshal.ReadIntPtr(handle, name_offset)); }
}
static readonly int name_offset = (int)Marshal.OffsetOf<SoundIoDevice>("name");
public int ProbeError
{
get { return Marshal.ReadInt32(handle, probe_error_offset); }
}
static readonly int probe_error_offset = (int)Marshal.OffsetOf<SoundIoDevice>("probe_error");
public int ReferenceCount
{
get { return Marshal.ReadInt32(handle, ref_count_offset); }
}
static readonly int ref_count_offset = (int)Marshal.OffsetOf<SoundIoDevice>("ref_count");
public int SampleRateCount
{
get { return Marshal.ReadInt32(handle, sample_rate_count_offset); }
}
static readonly int sample_rate_count_offset = (int)Marshal.OffsetOf<SoundIoDevice>("sample_rate_count");
public IEnumerable<SoundIOSampleRateRange> SampleRates
{
get
{
var ptr = Marshal.ReadIntPtr(handle, sample_rates_offset);
for (int i = 0; i < SampleRateCount; i++)
{
yield return new SoundIOSampleRateRange(Marshal.ReadInt32(ptr, i * 2), Marshal.ReadInt32(ptr, i * 2 + 1));
}
}
}
static readonly int sample_rates_offset = (int)Marshal.OffsetOf<SoundIoDevice>("sample_rates");
public double SoftwareLatencyCurrent
{
get { return MarshalEx.ReadDouble(handle, software_latency_current_offset); }
set { MarshalEx.WriteDouble(handle, software_latency_current_offset, value); }
}
static readonly int software_latency_current_offset = (int)Marshal.OffsetOf<SoundIoDevice>("software_latency_current");
public double SoftwareLatencyMin
{
get { return MarshalEx.ReadDouble(handle, software_latency_min_offset); }
set { MarshalEx.WriteDouble(handle, software_latency_min_offset, value); }
}
static readonly int software_latency_min_offset = (int)Marshal.OffsetOf<SoundIoDevice>("software_latency_min");
public double SoftwareLatencyMax
{
get { return MarshalEx.ReadDouble(handle, software_latency_max_offset); }
set { MarshalEx.WriteDouble(handle, software_latency_max_offset, value); }
}
static readonly int software_latency_max_offset = (int)Marshal.OffsetOf<SoundIoDevice>("software_latency_max");
public SoundIO SoundIO
{
get { return new SoundIO(Marshal.ReadIntPtr(handle, soundio_offset)); }
}
static readonly int soundio_offset = (int)Marshal.OffsetOf<SoundIoDevice>("soundio");
// functions
public void AddReference()
{
Natives.soundio_device_ref(handle);
}
public void RemoveReference()
{
Natives.soundio_device_unref(handle);
}
public void SortDeviceChannelLayouts()
{
Natives.soundio_device_sort_channel_layouts(handle);
}
public static readonly SoundIOFormat S16NE = BitConverter.IsLittleEndian ? SoundIOFormat.S16LE : SoundIOFormat.S16BE;
public static readonly SoundIOFormat U16NE = BitConverter.IsLittleEndian ? SoundIOFormat.U16LE : SoundIOFormat.U16BE;
public static readonly SoundIOFormat S24NE = BitConverter.IsLittleEndian ? SoundIOFormat.S24LE : SoundIOFormat.S24BE;
public static readonly SoundIOFormat U24NE = BitConverter.IsLittleEndian ? SoundIOFormat.U24LE : SoundIOFormat.U24BE;
public static readonly SoundIOFormat S32NE = BitConverter.IsLittleEndian ? SoundIOFormat.S32LE : SoundIOFormat.S32BE;
public static readonly SoundIOFormat U32NE = BitConverter.IsLittleEndian ? SoundIOFormat.U32LE : SoundIOFormat.U32BE;
public static readonly SoundIOFormat Float32NE = BitConverter.IsLittleEndian ? SoundIOFormat.Float32LE : SoundIOFormat.Float32BE;
public static readonly SoundIOFormat Float64NE = BitConverter.IsLittleEndian ? SoundIOFormat.Float64LE : SoundIOFormat.Float64BE;
public static readonly SoundIOFormat S16FE = !BitConverter.IsLittleEndian ? SoundIOFormat.S16LE : SoundIOFormat.S16BE;
public static readonly SoundIOFormat U16FE = !BitConverter.IsLittleEndian ? SoundIOFormat.U16LE : SoundIOFormat.U16BE;
public static readonly SoundIOFormat S24FE = !BitConverter.IsLittleEndian ? SoundIOFormat.S24LE : SoundIOFormat.S24BE;
public static readonly SoundIOFormat U24FE = !BitConverter.IsLittleEndian ? SoundIOFormat.U24LE : SoundIOFormat.U24BE;
public static readonly SoundIOFormat S32FE = !BitConverter.IsLittleEndian ? SoundIOFormat.S32LE : SoundIOFormat.S32BE;
public static readonly SoundIOFormat U32FE = !BitConverter.IsLittleEndian ? SoundIOFormat.U32LE : SoundIOFormat.U32BE;
public static readonly SoundIOFormat Float32FE = !BitConverter.IsLittleEndian ? SoundIOFormat.Float32LE : SoundIOFormat.Float32BE;
public static readonly SoundIOFormat Float64FE = !BitConverter.IsLittleEndian ? SoundIOFormat.Float64LE : SoundIOFormat.Float64BE;
public bool SupportsFormat(SoundIOFormat format)
{
return Natives.soundio_device_supports_format(handle, (SoundIoFormat)format);
}
public bool SupportsSampleRate(int sampleRate)
{
return Natives.soundio_device_supports_sample_rate(handle, sampleRate);
}
public bool SupportsChannelCount(int channelCount)
{
return Natives.soundio_device_supports_layout(handle, SoundIOChannelLayout.GetDefault(channelCount).Handle);
}
public int GetNearestSampleRate(int sampleRate)
{
return Natives.soundio_device_nearest_sample_rate(handle, sampleRate);
}
public SoundIOInStream CreateInStream()
{
return new SoundIOInStream(Natives.soundio_instream_create(handle));
}
public SoundIOOutStream CreateOutStream()
{
return new SoundIOOutStream(Natives.soundio_outstream_create(handle));
}
}
}