From 173ee0037c92beb57d23dda188ae2f3370887266 Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Tue, 16 Oct 2018 22:51:10 +0100
Subject: [PATCH] support high dpi on avalonia remote previewer.

---
 .../Remote/Server/RemoteServerTopLevelImpl.cs               | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/Avalonia.Controls/Remote/Server/RemoteServerTopLevelImpl.cs b/src/Avalonia.Controls/Remote/Server/RemoteServerTopLevelImpl.cs
index b302f2f5ec..c1ef9476db 100644
--- a/src/Avalonia.Controls/Remote/Server/RemoteServerTopLevelImpl.cs
+++ b/src/Avalonia.Controls/Remote/Server/RemoteServerTopLevelImpl.cs
@@ -102,6 +102,12 @@ namespace Avalonia.Controls.Remote.Server
         
         FrameMessage RenderFrame(int width, int height, ProtocolPixelFormat? format)
         {
+            var scalingX = _dpi.X / 96.0;
+            var scalingY = _dpi.Y / 96.0;
+
+            width = (int)(width * scalingX);
+            height = (int)(height * scalingY);
+
             var fmt = format ?? ProtocolPixelFormat.Rgba8888;
             var bpp = fmt == ProtocolPixelFormat.Rgb565 ? 2 : 4;
             var data = new byte[width * height * bpp];