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

1 files changed, 0 insertions, 188 deletions

diff --git a/Ryujinx.Audio.Renderer/Utils/SpanIOHelper.cs b/Ryujinx.Audio.Renderer/Utils/SpanIOHelper.cs
deleted file mode 100644
index 70a2fce6..00000000
--- a/Ryujinx.Audio.Renderer/Utils/SpanIOHelper.cs
+++ /dev/null
@@ -1,188 +0,0 @@
-//
-// Copyright (c) 2019-2021 Ryujinx
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-//
-
-using System;
-using System.Diagnostics;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.Audio.Renderer.Utils
-{
-    /// <summary>
-    /// Helper for IO operations on <see cref="Span{T}"/> and <see cref="Memory{T}"/>.
-    /// </summary>
-    public static class SpanIOHelper
-    {
-        /// <summary>
-        /// Write the given data to the given backing <see cref="Memory{T}"/> and move cursor after the written data.
-        /// </summary>
-        /// <typeparam name="T">The data type.</typeparam>
-        /// <param name="backingMemory">The backing <see cref="Memory{T}"/> to store the data.</param>
-        /// <param name="data">The data to write to the backing <see cref="Memory{T}"/>.</param>
-        public static void Write<T>(ref Memory<byte> backingMemory, ref T data) where T : unmanaged
-        {
-            int size = Unsafe.SizeOf<T>();
-
-            if (size > backingMemory.Length)
-            {
-                throw new ArgumentOutOfRangeException();
-            }
-
-            MemoryMarshal.Write<T>(backingMemory.Span.Slice(0, size), ref data);
-
-            backingMemory = backingMemory.Slice(size);
-        }
-
-        /// <summary>
-        /// Write the given data to the given backing <see cref="Span{T}"/> and move cursor after the written data.
-        /// </summary>
-        /// <typeparam name="T">The data type.</typeparam>
-        /// <param name="backingMemory">The backing <see cref="Span{T}"/> to store the data.</param>
-        /// <param name="data">The data to write to the backing <see cref="Span{T}"/>.</param>
-        public static void Write<T>(ref Span<byte> backingMemory, ref T data) where T : unmanaged
-        {
-            int size = Unsafe.SizeOf<T>();
-
-            if (size > backingMemory.Length)
-            {
-                throw new ArgumentOutOfRangeException();
-            }
-
-            MemoryMarshal.Write<T>(backingMemory.Slice(0, size), ref data);
-
-            backingMemory = backingMemory.Slice(size);
-        }
-
-        /// <summary>
-        /// Get a <see cref="Span{T}"/> out of a <paramref name="backingMemory"/> and move cursor after T size.
-        /// </summary>
-        /// <typeparam name="T">The data type.</typeparam>
-        /// <param name="backingMemory">The backing <see cref="Memory{T}"/> to get a <see cref="Span{T}"/> from.</param>
-        /// <returns>A <see cref="Span{T}"/> from backing <see cref="Memory{T}"/>.</returns>
-        public static Span<T> GetWriteRef<T>(ref Memory<byte> backingMemory) where T : unmanaged
-        {
-            int size = Unsafe.SizeOf<T>();
-
-            if (size > backingMemory.Length)
-            {
-                throw new ArgumentOutOfRangeException();
-            }
-
-            Span<T> result = MemoryMarshal.Cast<byte, T>(backingMemory.Span.Slice(0, size));
-
-            backingMemory = backingMemory.Slice(size);
-
-            return result;
-        }
-
-        /// <summary>
-        /// Get a <see cref="Span{T}"/> out of a backingMemory and move cursor after T size.
-        /// </summary>
-        /// <typeparam name="T">The data type.</typeparam>
-        /// <param name="backingMemory">The backing <see cref="Span{T}"/> to get a <see cref="Span{T}"/> from.</param>
-        /// <returns>A <see cref="Span{T}"/> from backing <see cref="Span{T}"/>.</returns>
-        public static Span<T> GetWriteRef<T>(ref Span<byte> backingMemory) where T : unmanaged
-        {
-            int size = Unsafe.SizeOf<T>();
-
-            if (size > backingMemory.Length)
-            {
-                throw new ArgumentOutOfRangeException();
-            }
-
-            Span<T> result = MemoryMarshal.Cast<byte, T>(backingMemory.Slice(0, size));
-
-            backingMemory = backingMemory.Slice(size);
-
-            return result;
-        }
-
-        /// <summary>
-        /// Read data from the given backing <see cref="ReadOnlyMemory{T}"/> and move cursor after the read data.
-        /// </summary>
-        /// <typeparam name="T">The data type.</typeparam>
-        /// <param name="backingMemory">The backing <see cref="ReadOnlyMemory{T}"/> to read data from.</param>
-        /// <returns>Return the read data.</returns>
-        public static T Read<T>(ref ReadOnlyMemory<byte> backingMemory) where T : unmanaged
-        {
-            int size = Unsafe.SizeOf<T>();
-
-            if (size > backingMemory.Length)
-            {
-                throw new ArgumentOutOfRangeException();
-            }
-
-            T result = MemoryMarshal.Read<T>(backingMemory.Span.Slice(0, size));
-
-            backingMemory = backingMemory.Slice(size);
-
-            return result;
-        }
-
-        /// <summary>
-        /// Read data from the given backing <see cref="ReadOnlySpan{T}"/> and move cursor after the read data.
-        /// </summary>
-        /// <typeparam name="T">The data type.</typeparam>
-        /// <param name="backingMemory">The backing <see cref="ReadOnlySpan{T}"/> to read data from.</param>
-        /// <returns>Return the read data.</returns>
-        public static T Read<T>(ref ReadOnlySpan<byte> backingMemory) where T : unmanaged
-        {
-            int size = Unsafe.SizeOf<T>();
-
-            if (size > backingMemory.Length)
-            {
-                throw new ArgumentOutOfRangeException();
-            }
-
-            T result = MemoryMarshal.Read<T>(backingMemory.Slice(0, size));
-
-            backingMemory = backingMemory.Slice(size);
-
-            return result;
-        }
-
-        /// <summary>
-        /// Extract a <see cref="Memory{T}"/> at the given index.
-        /// </summary>
-        /// <typeparam name="T">The data type.</typeparam>
-        /// <param name="memory">The <see cref="Memory{T}"/> to extract the data from.</param>
-        /// <param name="id">The id in the provided memory.</param>
-        /// <param name="count">The max allowed count. (for bound checking of the id in debug mode)</param>
-        /// <returns>a <see cref="Memory{T}"/> at the given id.</returns>
-        [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public static Memory<T> GetMemory<T>(Memory<T> memory, int id, uint count) where T : unmanaged
-        {
-            Debug.Assert(id >= 0 && id < count);
-
-            return memory.Slice(id, 1);
-        }
-
-        /// <summary>
-        /// Extract a ref T at the given index.
-        /// </summary>
-        /// <typeparam name="T">The data type.</typeparam>
-        /// <param name="memory">The <see cref="Memory{T}"/> to extract the data from.</param>
-        /// <param name="id">The id in the provided memory.</param>
-        /// <param name="count">The max allowed count. (for bound checking of the id in debug mode)</param>
-        /// <returns>a ref T at the given id.</returns>
-        [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public static ref T GetFromMemory<T>(Memory<T> memory, int id, uint count) where T : unmanaged
-        {
-            return ref GetMemory(memory, id, count).Span[0];
-        }
-    }
-}