mirror of
https://github.com/MaSzyna-EU07/StarterNG.git
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3b21583b53
Six levels of detail climbing in even steps, High being where a player with no settings of their own starts. Five parts of the picture can also take a level of their own. Resolutions start from the monitors in the computer. uartfeature with nothing selected writes "no no no no"; uart and uarttune are written whole or not at all. On Linux the file's contents tell a Windows build, a native one and a script from a note that merely has the execute bit.
75 lines
3.0 KiB
C#
75 lines
3.0 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text.RegularExpressions;
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using StarterNG.Application.Abstractions;
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using StarterNG.Domain.Settings;
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namespace StarterNG.Infrastructure;
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/// <summary>
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/// The graphics cards of a Linux machine, read from /sys/class/drm - which the
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/// Steam Linux Runtime container shows too, unlike some of the host's tools.
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/// </summary>
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public sealed class LinuxGpus
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{
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private const string DrmClass = "/sys/class/drm";
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// card0 and card1, not their connectors (card0-eDP-2) or render nodes.
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private static readonly Regex Card = new(@"^card\d+$", RegexOptions.CultureInvariant);
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// The connectors of a laptop's own screen, listed whether lit or not.
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private static readonly Regex Panel = new(@"^(card\d+)-(eDP|LVDS|DSI)-\d+$", RegexOptions.CultureInvariant);
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private readonly IFileSystem _files;
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private readonly IEnvironment _environment;
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public LinuxGpus(IFileSystem files, IEnvironment environment)
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{
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_files = files;
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_environment = environment;
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}
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/// <summary>Every card with a PCI address and a driver; empty off Linux, or when /sys cannot be read.</summary>
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public IReadOnlyList<GpuDevice> List()
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{
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if (!_environment.IsLinux)
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return Array.Empty<GpuDevice>();
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try
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{
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var gpus = new List<GpuDevice>();
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var entries = _files.GetDirectories(DrmClass).Select(Path.GetFileName).OfType<string>().ToList();
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var withPanel = entries.Select(e => Panel.Match(e)).Where(m => m.Success)
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.Select(m => m.Groups[1].Value).ToHashSet(StringComparer.Ordinal);
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foreach (string name in entries.Where(e => Card.IsMatch(e)))
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{
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string card = Path.Combine(DrmClass, name);
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string device = Path.Combine(card, "device");
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string uevent = Path.Combine(device, "uevent");
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if (!_files.FileExists(uevent))
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continue;
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var fields = _files.ReadAllLines(uevent)
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.Select(line => line.Split('=', 2))
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.Where(pair => pair.Length == 2)
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.ToDictionary(pair => pair[0], pair => pair[1].Trim(), StringComparer.Ordinal);
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if (!fields.TryGetValue("PCI_SLOT_NAME", out string? slot) ||
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!fields.TryGetValue("PCI_ID", out string? id))
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continue;
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string bootVga = Path.Combine(device, "boot_vga");
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bool boot = _files.FileExists(bootVga) && _files.ReadAllText(bootVga).Trim() == "1";
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gpus.Add(new GpuDevice(slot, id, fields.GetValueOrDefault("DRIVER", ""), boot, withPanel.Contains(name)));
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}
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return gpus.OrderBy(g => g.Slot, StringComparer.Ordinal).ToList();
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}
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catch (Exception e) when (e is IOException or UnauthorizedAccessException)
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{
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return Array.Empty<GpuDevice>();
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}
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}
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}
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