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authorTSR Berry <20988865+TSRBerry@users.noreply.github.com>2023-04-08 01:22:00 +0200
committerMary <thog@protonmail.com>2023-04-27 23:51:14 +0200
commitcee712105850ac3385cd0091a923438167433f9f (patch)
tree4a5274b21d8b7f938c0d0ce18736d3f2993b11b1 /src/Ryujinx.Audio/Renderer/Utils/SpanIOHelper.cs
parentcd124bda587ef09668a971fa1cac1c3f0cfc9f21 (diff)
Move solution and projects to src
Diffstat (limited to 'src/Ryujinx.Audio/Renderer/Utils/SpanIOHelper.cs')
-rw-r--r--src/Ryujinx.Audio/Renderer/Utils/SpanIOHelper.cs171
1 files changed, 171 insertions, 0 deletions
diff --git a/src/Ryujinx.Audio/Renderer/Utils/SpanIOHelper.cs b/src/Ryujinx.Audio/Renderer/Utils/SpanIOHelper.cs
new file mode 100644
index 00000000..103fb6a0
--- /dev/null
+++ b/src/Ryujinx.Audio/Renderer/Utils/SpanIOHelper.cs
@@ -0,0 +1,171 @@
+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];
+ }
+ }
+} \ No newline at end of file
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