From 2ffca576293de1b60019ba3e14ea34cc0d757eeb Mon Sep 17 00:00:00 2001
From: SuperUserNameMan <9801802+SuperUserNameMan@users.noreply.github.com>
Date: Mon, 22 Jul 2024 17:45:08 +0200
Subject: [PATCH] `GetWindowScaleDPI()` return `{1,1}` if HDPI or fullscreen
 modes

---
 src/platforms/rcore_desktop_glfw.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/src/platforms/rcore_desktop_glfw.c b/src/platforms/rcore_desktop_glfw.c
index e42125630..dddf586fb 100644
--- a/src/platforms/rcore_desktop_glfw.c
+++ b/src/platforms/rcore_desktop_glfw.c
@@ -1024,8 +1024,23 @@ Vector2 GetWindowPosition(void)
 // Get window scale DPI factor for current monitor
 Vector2 GetWindowScaleDPI(void)
 {
-    Vector2 scale = {0};
-    glfwGetWindowContentScale(platform.handle, &scale.x, &scale.y);
+    Vector2 scale = {1.0, 1.0};
+
+    // On platforms, like Wayland, the window and its frameBuffer are automatically rescaled
+    // according to the current DPI scale of the display on which the window is visible, 
+    // `glfwGetWindowContentScale()` will always return `{1.0, 1.0}`, because there is no need
+    // for the applciation to apply any DPI rescaling by itself.
+    // So, to keep consistency among all supported platforms, if `FLAG_WINDOW_HIGHDPI` is enabled
+    // we ignore the value returned by `glfwGetWindowContentScale()` and return `{1.0, 1.0}` instead.
+    // Same if we are in an hardware/exclusive fullscreen mode.
+
+    if (!IsWindowState(FLAG_WINDOW_HIGHDPI) && !CORE.Window.fullscreen) 
+    {
+        // We only need to know the DPI scale of the display if we want to rescale our UI and texts manually by code.
+
+        glfwGetWindowContentScale(platform.handle, &scale.x, &scale.y);
+    }
+
     return scale;
 }