Semi.Avalonia/demo/Semi.Avalonia.Demo.Drm/Program.cs

using System;
using System.Globalization;
using System.Linq;
using System.Threading;
using Avalonia;

namespace Semi.Avalonia.Demo.Drm;

class Program
{
    // Initialization code. Don't use any Avalonia, third-party APIs or any
    // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
    // yet and stuff might break.
    [STAThread]
    public static int Main(string[] args)
    {
        var builder = BuildAvaloniaApp();

        double GetScaling()
        {
            var idx = Array.IndexOf(args, "--scaling");
            if (idx != 0 && args.Length > idx + 1 &&
                double.TryParse(args[idx + 1], NumberStyles.Any, CultureInfo.InvariantCulture, out var scaling))
                return scaling;
            return 1;
        }

        if (args.Contains("--drm"))
        {
            SilenceConsole();
            return builder.StartLinuxDrm(args: args, card: "/dev/dri/card1", scaling: GetScaling());
        }

        return builder.StartWithClassicDesktopLifetime(args);
    }

    // Avalonia configuration, don't remove; also used by visual designer.
    public static AppBuilder BuildAvaloniaApp()
        => AppBuilder.Configure<App>()
            .UsePlatformDetect()
            .LogToTrace();

    private static void SilenceConsole()
    {
        new Thread(() =>
            {
                Console.CursorVisible = false;
                while (true)
                    Console.ReadKey(true);
            })
            { IsBackground = true }.Start();
    }
}