From 04dda07620a65e8e2e892593debb8912864ad4e7 Mon Sep 17 00:00:00 2001
From: pizzaboxer <pizzaboxer@pizzaboxer.xyz>
Date: Tue, 1 Aug 2023 19:29:10 +0100
Subject: [PATCH] Set default FPS limit as main display refresh rate

https: //cdn.discordapp.com/attachments/377894067712950275/1136002569660014653/image.png
Co-Authored-By: $wag Messiah <135360571+sahelantrophus@users.noreply.github.com>
---
 Bloxstrap/FastFlagManager.cs | 30 +++++++++++++++++++++---------
 Bloxstrap/NativeMethods.txt  |  1 +
 2 files changed, 22 insertions(+), 9 deletions(-)

diff --git a/Bloxstrap/FastFlagManager.cs b/Bloxstrap/FastFlagManager.cs
index 42335a33..0a3e36a8 100644
--- a/Bloxstrap/FastFlagManager.cs
+++ b/Bloxstrap/FastFlagManager.cs
@@ -1,5 +1,7 @@
-using System.Windows.Input;
-using System.Windows.Media.Animation;
+using System.Windows.Forms;
+
+using Windows.Win32;
+using Windows.Win32.Graphics.Gdi;
 
 namespace Bloxstrap
 {
@@ -152,12 +154,6 @@ public void SetPreset(string prefix, object? value)
                 SetValue(pair.Value, value);
         }
 
-        public void SetPresetOnce(string key, object? value)
-        {
-            if (GetPreset(key) is null)
-                SetPreset(key, value);
-        }
-
         public void SetPresetEnum(string prefix, string target, object? value)
         {
             foreach (var pair in PresetFlags.Where(x => x.Key.StartsWith(prefix)))
@@ -207,8 +203,24 @@ public override void Load()
         {
             base.Load();
 
-            SetPresetOnce("Rendering.Framerate", 9999);
             CheckManualFullscreenPreset();
+
+            if (GetPreset("Rendering.Framerate") is not null)
+                return;
+
+            // set it to be the framerate of the primary display by default
+
+            var screen = Screen.AllScreens.Where(x => x.Primary).Single();
+            var devmode = new DEVMODEW();
+
+            PInvoke.EnumDisplaySettings(screen.DeviceName, ENUM_DISPLAY_SETTINGS_MODE.ENUM_CURRENT_SETTINGS, ref devmode);
+
+            uint framerate = devmode.dmDisplayFrequency;
+
+            if (framerate <= 100)
+                framerate *= 2;
+
+            SetPreset("Rendering.Framerate", framerate);
         }
     }
 }
diff --git a/Bloxstrap/NativeMethods.txt b/Bloxstrap/NativeMethods.txt
index a66c6fad..aaa0b6a7 100644
--- a/Bloxstrap/NativeMethods.txt
+++ b/Bloxstrap/NativeMethods.txt
@@ -2,3 +2,4 @@
 FlashWindow
 GetWindowLong
 SetWindowLong
+EnumDisplaySettings