mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-12-25 07:46:01 +00:00
f556c80d02
* 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
293 lines
9.4 KiB
C#
293 lines
9.4 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Runtime.InteropServices;
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namespace SoundIOSharp
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{
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public class SoundIOInStream : IDisposable
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{
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internal SoundIOInStream(Pointer<SoundIoInStream> handle)
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{
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this.handle = handle;
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}
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Pointer<SoundIoInStream> handle;
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public void Dispose()
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{
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Natives.soundio_instream_destroy(handle);
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}
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// Equality (based on handle)
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public override bool Equals(object other)
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{
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var d = other as SoundIOInStream;
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return d != null && (this.handle == d.handle);
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}
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public override int GetHashCode()
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{
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return (int)(IntPtr)handle;
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}
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public static bool operator == (SoundIOInStream obj1, SoundIOInStream obj2)
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{
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return obj1 is null ? obj2 is null : obj1.Equals(obj2);
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}
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public static bool operator != (SoundIOInStream obj1, SoundIOInStream obj2)
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{
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return obj1 is null ? obj2 is object : !obj1.Equals(obj2);
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}
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// fields
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public SoundIODevice Device
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{
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get { return new SoundIODevice(Marshal.ReadIntPtr(handle, device_offset)); }
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}
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static readonly int device_offset = (int)Marshal.OffsetOf<SoundIoInStream>("device");
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public SoundIOFormat Format
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{
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get { return (SoundIOFormat)Marshal.ReadInt32(handle, format_offset); }
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set { Marshal.WriteInt32(handle, format_offset, (int) value); }
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}
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static readonly int format_offset = (int)Marshal.OffsetOf<SoundIoInStream>("format");
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public int SampleRate
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{
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get { return Marshal.ReadInt32(handle, sample_rate_offset); }
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set { Marshal.WriteInt32(handle, sample_rate_offset, value); }
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}
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static readonly int sample_rate_offset = (int)Marshal.OffsetOf<SoundIoInStream>("sample_rate");
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public SoundIOChannelLayout Layout
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{
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get { return new SoundIOChannelLayout ((IntPtr) handle + layout_offset); }
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set
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{
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unsafe
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{
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Buffer.MemoryCopy((void*)((IntPtr)handle + layout_offset), (void*)value.Handle, Marshal.SizeOf<SoundIoChannelLayout>(), Marshal.SizeOf<SoundIoChannelLayout>());
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}
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}
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}
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static readonly int layout_offset = (int)Marshal.OffsetOf<SoundIoInStream>("layout");
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public double SoftwareLatency
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{
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get { return MarshalEx.ReadDouble(handle, software_latency_offset); }
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set { MarshalEx.WriteDouble(handle, software_latency_offset, value); }
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}
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static readonly int software_latency_offset = (int)Marshal.OffsetOf<SoundIoInStream>("software_latency");
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// error_callback
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public Action ErrorCallback
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{
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get { return error_callback; }
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set
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{
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error_callback = value;
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error_callback_native = _ => error_callback();
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var ptr = Marshal.GetFunctionPointerForDelegate(error_callback_native);
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Marshal.WriteIntPtr(handle, error_callback_offset, ptr);
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}
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}
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static readonly int error_callback_offset = (int)Marshal.OffsetOf<SoundIoInStream>("error_callback");
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Action error_callback;
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delegate void error_callback_delegate(IntPtr handle);
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error_callback_delegate error_callback_native;
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// read_callback
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public Action<int,int> ReadCallback
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{
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get { return read_callback; }
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set
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{
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read_callback = value;
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read_callback_native = (_, minFrameCount, maxFrameCount) => read_callback(minFrameCount, maxFrameCount);
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var ptr = Marshal.GetFunctionPointerForDelegate(read_callback_native);
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Marshal.WriteIntPtr(handle, read_callback_offset, ptr);
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}
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}
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static readonly int read_callback_offset = (int)Marshal.OffsetOf<SoundIoInStream>("read_callback");
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Action<int, int> read_callback;
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delegate void read_callback_delegate(IntPtr handle, int min, int max);
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read_callback_delegate read_callback_native;
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// overflow_callback
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public Action OverflowCallback
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{
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get { return overflow_callback; }
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set
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{
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overflow_callback = value;
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overflow_callback_native = _ => overflow_callback();
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var ptr = Marshal.GetFunctionPointerForDelegate(overflow_callback_native);
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Marshal.WriteIntPtr(handle, overflow_callback_offset, ptr);
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}
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}
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static readonly int overflow_callback_offset = (int)Marshal.OffsetOf<SoundIoInStream>("overflow_callback");
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Action overflow_callback;
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delegate void overflow_callback_delegate(IntPtr handle);
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overflow_callback_delegate overflow_callback_native;
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// FIXME: this should be taken care in more centralized/decent manner... we don't want to write
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// this kind of code anywhere we need string marshaling.
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List<IntPtr> allocated_hglobals = new List<IntPtr>();
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public string Name
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{
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get { return Marshal.PtrToStringAnsi(Marshal.ReadIntPtr(handle, name_offset)); }
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set
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{
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unsafe
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{
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var existing = Marshal.ReadIntPtr(handle, name_offset);
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if (allocated_hglobals.Contains(existing))
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{
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allocated_hglobals.Remove(existing);
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Marshal.FreeHGlobal(existing);
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}
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var ptr = Marshal.StringToHGlobalAnsi(value);
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Marshal.WriteIntPtr(handle, name_offset, ptr);
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allocated_hglobals.Add(ptr);
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}
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}
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}
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static readonly int name_offset = (int)Marshal.OffsetOf<SoundIoInStream>("name");
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public bool NonTerminalHint
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{
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get { return Marshal.ReadInt32(handle, non_terminal_hint_offset) != 0; }
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}
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static readonly int non_terminal_hint_offset = (int)Marshal.OffsetOf<SoundIoInStream>("non_terminal_hint");
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public int BytesPerFrame
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{
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get { return Marshal.ReadInt32(handle, bytes_per_frame_offset); }
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}
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static readonly int bytes_per_frame_offset = (int)Marshal.OffsetOf<SoundIoInStream>("bytes_per_frame");
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public int BytesPerSample
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{
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get { return Marshal.ReadInt32(handle, bytes_per_sample_offset); }
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}
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static readonly int bytes_per_sample_offset = (int)Marshal.OffsetOf<SoundIoInStream>("bytes_per_sample");
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public string LayoutErrorMessage
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{
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get
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{
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var code = (SoundIoError)Marshal.ReadInt32(handle, layout_error_offset);
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return code == SoundIoError.SoundIoErrorNone ? null : Marshal.PtrToStringAnsi(Natives.soundio_strerror((int)code));
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}
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}
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static readonly int layout_error_offset = (int)Marshal.OffsetOf<SoundIoInStream>("layout_error");
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// functions
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public void Open()
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{
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var ret = (SoundIoError)Natives.soundio_instream_open(handle);
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if (ret != SoundIoError.SoundIoErrorNone)
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{
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throw new SoundIOException(ret);
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}
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}
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public void Start()
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{
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var ret = (SoundIoError)Natives.soundio_instream_start(handle);
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if (ret != SoundIoError.SoundIoErrorNone)
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{
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throw new SoundIOException(ret);
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}
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}
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public SoundIOChannelAreas BeginRead(ref int frameCount)
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{
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IntPtr ptrs = default;
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int nativeFrameCount = frameCount;
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unsafe
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{
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var frameCountPtr = &nativeFrameCount;
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var ptrptr = &ptrs;
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var ret = (SoundIoError)Natives.soundio_instream_begin_read(handle, (IntPtr)ptrptr, (IntPtr)frameCountPtr);
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frameCount = *frameCountPtr;
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if (ret != SoundIoError.SoundIoErrorNone)
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{
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throw new SoundIOException(ret);
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}
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return new SoundIOChannelAreas(ptrs, Layout.ChannelCount, frameCount);
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}
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}
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public void EndRead()
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{
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var ret = (SoundIoError)Natives.soundio_instream_end_read(handle);
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if (ret != SoundIoError.SoundIoErrorNone)
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{
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throw new SoundIOException(ret);
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}
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}
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public void Pause(bool pause)
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{
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var ret = (SoundIoError)Natives.soundio_instream_pause(handle, pause);
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if (ret != SoundIoError.SoundIoErrorNone)
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{
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throw new SoundIOException(ret);
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}
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}
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public double GetLatency()
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{
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unsafe
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{
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double* dptr = null;
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IntPtr p = new IntPtr(dptr);
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var ret = (SoundIoError)Natives.soundio_instream_get_latency(handle, p);
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if (ret != SoundIoError.SoundIoErrorNone)
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{
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throw new SoundIOException(ret);
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}
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dptr = (double*)p;
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return *dptr;
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}
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}
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}
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}
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