From e7336cbf82c8fa44d73d9261783d28cf06834e86 Mon Sep 17 00:00:00 2001
From: Snoweuph <snow+git-fedorabook@euph.email>
Date: Wed, 28 Aug 2024 21:41:07 +0200
Subject: [PATCH] Fractional Scaling

---
 .../java/dev/euph/engine/opengl/GLWindow.java     | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/Engine/src/opengl/java/dev/euph/engine/opengl/GLWindow.java b/Engine/src/opengl/java/dev/euph/engine/opengl/GLWindow.java
index 3b6013c..e02072f 100644
--- a/Engine/src/opengl/java/dev/euph/engine/opengl/GLWindow.java
+++ b/Engine/src/opengl/java/dev/euph/engine/opengl/GLWindow.java
@@ -19,19 +19,24 @@ public class GLWindow extends Window {
         });
 
         if (glfwGetPlatform() != GLFW_PLATFORM_WAYLAND) {
-            GLFWVidMode vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor());
-            assert vidmode != null;
+            GLFWVidMode videoMode = glfwGetVideoMode(glfwGetPrimaryMonitor());
+            assert videoMode != null;
             glfwSetWindowPos(
                     id,
-                    (vidmode.width() - width) / 2,
-                    (vidmode.height() - height) / 2
+                    (videoMode.width() - width) / 2,
+                    (videoMode.height() - height) / 2
             );
         }
 
         addResizeCallback((int newWidth, int newHeight) -> {
             GLWindow.this.width = newWidth;
             GLWindow.this.height = newHeight;
-            glViewport(0, 0, newWidth, newHeight);
+
+            float[] x = new float[1];
+            float[] y = new float[1];
+            glfwGetWindowContentScale(getId(), x, y);
+
+            glViewport(0, 0, (int) (newWidth * x[0]), (int) (newHeight * y[0]));
         });
 
         GL.createCapabilities();