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-rw-r--r--Ryujinx.Common/System/ForceDpiAware.cs42
1 files changed, 40 insertions, 2 deletions
diff --git a/Ryujinx.Common/System/ForceDpiAware.cs b/Ryujinx.Common/System/ForceDpiAware.cs
index dc513307..f29630a6 100644
--- a/Ryujinx.Common/System/ForceDpiAware.cs
+++ b/Ryujinx.Common/System/ForceDpiAware.cs
@@ -1,6 +1,7 @@
using Ryujinx.Common.Logging;
using System;
using System.Drawing;
+using System.Globalization;
using System.Runtime.InteropServices;
using System.Runtime.Versioning;
@@ -11,6 +12,23 @@ namespace Ryujinx.Common.System
[DllImport("user32.dll")]
private static extern bool SetProcessDPIAware();
+ private const string X11LibraryName = "libX11.so.6";
+
+ [DllImport(X11LibraryName)]
+ private static extern IntPtr XOpenDisplay(string display);
+
+ [DllImport(X11LibraryName)]
+ private static extern IntPtr XGetDefault(IntPtr display, string program, string option);
+
+ [DllImport(X11LibraryName)]
+ private static extern int XDisplayWidth(IntPtr display, int screenNumber);
+
+ [DllImport(X11LibraryName)]
+ private static extern int XDisplayWidthMM(IntPtr display, int screenNumber);
+
+ [DllImport(X11LibraryName)]
+ private static extern int XCloseDisplay(IntPtr display);
+
private static readonly double _standardDpiScale = 96.0;
private static readonly double _maxScaleFactor = 1.25;
@@ -36,9 +54,29 @@ namespace Ryujinx.Common.System
{
userDpiScale = Graphics.FromHwnd(IntPtr.Zero).DpiX;
}
- else
+ else if (OperatingSystem.IsLinux())
{
- // TODO: Linux support
+ string xdgSessionType = Environment.GetEnvironmentVariable("XDG_SESSION_TYPE")?.ToLower();
+
+ if (xdgSessionType == null || xdgSessionType == "x11")
+ {
+ IntPtr display = XOpenDisplay(null);
+ string dpiString = Marshal.PtrToStringAnsi(XGetDefault(display, "Xft", "dpi"));
+ if (dpiString == null || !double.TryParse(dpiString, NumberStyles.Any, CultureInfo.InvariantCulture, out userDpiScale))
+ {
+ userDpiScale = (double)XDisplayWidth(display, 0) * 25.4 / (double)XDisplayWidthMM(display, 0);
+ }
+ XCloseDisplay(display);
+ }
+ else if (xdgSessionType == "wayland")
+ {
+ // TODO
+ Logger.Warning?.Print(LogClass.Application, $"Couldn't determine monitor DPI: Wayland not yet supported");
+ }
+ else
+ {
+ Logger.Warning?.Print(LogClass.Application, $"Couldn't determine monitor DPI: Unrecognised XDG_SESSION_TYPE: {xdgSessionType}");
+ }
}
}
catch (Exception e)