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* Avoid allocations in .Parse methods Use the Span overloads of the Parse methods when possible to avoid string allocations and remove one unnecessarry array allocation * Avoid another string allocation
148 lines
4 KiB
C#
148 lines
4 KiB
C#
using System;
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using System.IO;
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using System.Reflection;
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using System.Threading.Tasks;
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namespace Ryujinx.Common
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{
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public static class EmbeddedResources
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{
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private readonly static Assembly ResourceAssembly;
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static EmbeddedResources()
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{
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ResourceAssembly = Assembly.GetAssembly(typeof(EmbeddedResources));
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}
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public static byte[] Read(string filename)
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{
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var (assembly, path) = ResolveManifestPath(filename);
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return Read(assembly, path);
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}
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public static Task<byte[]> ReadAsync(string filename)
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{
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var (assembly, path) = ResolveManifestPath(filename);
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return ReadAsync(assembly, path);
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}
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public static byte[] Read(Assembly assembly, string filename)
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{
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using (var stream = GetStream(assembly, filename))
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{
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if (stream == null)
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{
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return null;
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}
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using (var mem = new MemoryStream())
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{
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stream.CopyTo(mem);
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return mem.ToArray();
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}
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}
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}
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public async static Task<byte[]> ReadAsync(Assembly assembly, string filename)
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{
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using (var stream = GetStream(assembly, filename))
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{
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if (stream == null)
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{
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return null;
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}
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using (var mem = new MemoryStream())
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{
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await stream.CopyToAsync(mem);
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return mem.ToArray();
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}
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}
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}
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public static string ReadAllText(string filename)
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{
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var (assembly, path) = ResolveManifestPath(filename);
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return ReadAllText(assembly, path);
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}
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public static Task<string> ReadAllTextAsync(string filename)
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{
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var (assembly, path) = ResolveManifestPath(filename);
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return ReadAllTextAsync(assembly, path);
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}
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public static string ReadAllText(Assembly assembly, string filename)
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{
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using (var stream = GetStream(assembly, filename))
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{
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if (stream == null)
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{
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return null;
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}
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using (var reader = new StreamReader(stream))
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{
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return reader.ReadToEnd();
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}
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}
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}
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public async static Task<string> ReadAllTextAsync(Assembly assembly, string filename)
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{
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using (var stream = GetStream(assembly, filename))
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{
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if (stream == null)
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{
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return null;
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}
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using (var reader = new StreamReader(stream))
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{
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return await reader.ReadToEndAsync();
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}
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}
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}
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public static Stream GetStream(string filename)
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{
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var (assembly, path) = ResolveManifestPath(filename);
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return GetStream(assembly, path);
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}
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public static Stream GetStream(Assembly assembly, string filename)
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{
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var namespace_ = assembly.GetName().Name;
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var manifestUri = namespace_ + "." + filename.Replace('/', '.');
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var stream = assembly.GetManifestResourceStream(manifestUri);
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return stream;
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}
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private static (Assembly, string) ResolveManifestPath(string filename)
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{
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var segments = filename.Split('/', 2, StringSplitOptions.RemoveEmptyEntries);
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if (segments.Length >= 2)
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{
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foreach (var assembly in AppDomain.CurrentDomain.GetAssemblies())
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{
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if (assembly.GetName().Name == segments[0])
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{
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return (assembly, segments[1]);
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}
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}
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}
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return (ResourceAssembly, filename);
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}
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}
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} |