mirror of
https://github.com/ryujinx-mirror/ryujinx.git
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1825bd87b4
This is the first commit of a series of reformat around the codebase as discussed internally some weeks ago. This project being one that isn't touched that much, it shouldn't cause conflict with any opened PRs.
171 lines
No EOL
6.8 KiB
C#
171 lines
No EOL
6.8 KiB
C#
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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} |