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