Show More
Commit Description:
Add timers for Simulation and various engines...
Commit Description:
Add timers for Simulation and various engines
Starting to add additional timers for different stages of the process of
updating in order to get more insight into what is slowing it down.
The update takes 9ms, which is much longer than it used to.
Engine-specific timers are coming later.
References:
File last commit:
Show/Diff file:
Action:
FNA/src/Utilities/FNAInternalExtensions.cs
65 lines | 1.8 KiB | text/x-csharp | CSharpLexer
65 lines | 1.8 KiB | text/x-csharp | CSharpLexer
| r0 | #region License | |||
| /* FNA - XNA4 Reimplementation for Desktop Platforms | ||||
| * Copyright 2009-2020 Ethan Lee and the MonoGame Team | ||||
| * | ||||
| * Released under the Microsoft Public License. | ||||
| * See LICENSE for details. | ||||
| */ | ||||
| #endregion | ||||
| #region Using Statements | ||||
| using System; | ||||
| using System.IO; | ||||
| using System.Reflection; | ||||
| #endregion | ||||
| namespace Microsoft.Xna.Framework | ||||
| { | ||||
| internal static class FNAInternalExtensions | ||||
| { | ||||
| #region MemoryStream.TryGetBuffer Extension | ||||
| private static readonly FieldInfo f_MemoryStream_Public = | ||||
| // .NET | ||||
| typeof(MemoryStream).GetField("_exposable", BindingFlags.NonPublic | BindingFlags.Instance) ?? | ||||
| // Old Mono | ||||
| typeof(MemoryStream).GetField("allowGetBuffer", BindingFlags.NonPublic | BindingFlags.Instance); | ||||
| /// <summary> | ||||
| /// Returns the array of unsigned bytes from which this stream was created. | ||||
| /// The return value indicates whether the conversion succeeded. | ||||
| /// This is similar to .NET 4.6's TryGetBuffer. | ||||
| /// </summary> | ||||
| /// <param name="stream">The stream to get the buffer from.</param> | ||||
| /// <param name="buffer">The byte array from which this stream was created.</param> | ||||
| /// <returns><b>true</b> if the conversion was successful; otherwise, <b>false</b>.</returns> | ||||
| internal static bool TryGetBuffer(this MemoryStream stream, out byte[] buffer) | ||||
| { | ||||
| // Check if the buffer is public by reflecting into a known internal field. | ||||
| if (f_MemoryStream_Public != null) | ||||
| { | ||||
| if ((bool) f_MemoryStream_Public.GetValue(stream)) | ||||
| { | ||||
| buffer = stream.GetBuffer(); | ||||
| return true; | ||||
| } | ||||
| buffer = null; | ||||
| return false; | ||||
| } | ||||
| // If no known field can be found, use a horribly slow try-catch instead. | ||||
| try | ||||
| { | ||||
| buffer = stream.GetBuffer(); | ||||
| return true; | ||||
| } | ||||
| catch (UnauthorizedAccessException) | ||||
| { | ||||
| buffer = null; | ||||
| return false; | ||||
| } | ||||
| } | ||||
| #endregion | ||||
| } | ||||
| } | ||||
