From a7408143546010a753a57e018932b8d689020f54 Mon Sep 17 00:00:00 2001
From: TheBrokenRail <connor24nolan@live.com>
Date: Sun, 24 Nov 2024 18:59:23 -0500
Subject: [PATCH] Fix Bug When Resizing ImGui

---
 launcher/src/ui/frame.cpp   |  1 +
 libreborn/src/util/glfw.cpp | 50 ++++++++++++++++++++++++-------------
 2 files changed, 33 insertions(+), 18 deletions(-)

diff --git a/launcher/src/ui/frame.cpp b/launcher/src/ui/frame.cpp
index 61cab743f7..e53b85e0df 100644
--- a/launcher/src/ui/frame.cpp
+++ b/launcher/src/ui/frame.cpp
@@ -90,6 +90,7 @@ void Frame::setup_style(const float scale) {
     font_cfg.FontDataOwnedByAtlas = false;
     io.Fonts->AddFontFromMemoryTTF(Roboto_Medium_ttf, int(Roboto_Medium_ttf_len), std::floor(20.0f * scale), &font_cfg);
     monospace = io.Fonts->AddFontFromMemoryTTF(Cousine_Regular_ttf, int(Cousine_Regular_ttf_len), std::floor(18.0f * scale), &font_cfg);
+    ImGui_ImplOpenGL2_DestroyFontsTexture();
     // Style
     ImGuiStyle &style = ImGui::GetStyle();
     style = ImGuiStyle();
diff --git a/libreborn/src/util/glfw.cpp b/libreborn/src/util/glfw.cpp
index babd1a47d8..44ac596b8b 100644
--- a/libreborn/src/util/glfw.cpp
+++ b/libreborn/src/util/glfw.cpp
@@ -46,23 +46,37 @@ void cleanup_glfw(GLFWwindow *window) {
 }
 
 // Framebuffer Scaling
-void get_glfw_scale(GLFWwindow *window, float *x_scale, float *y_scale) {
-    // Get Window Size
-    int window_width;
-    int window_height;
-    glfwGetWindowSize(window, &window_width, &window_height);
-    if (window_width <= 0 || window_height <= 0) {
-        return;
-    }
-    // Get Framebuffer Size
-    int framebuffer_width;
-    int framebuffer_height;
-    glfwGetFramebufferSize(window, &framebuffer_width, &framebuffer_height);
-    // Calculate Scale
-    if (x_scale) {
-        *x_scale = float(framebuffer_width) / float(window_width);
-    }
-    if (y_scale) {
-        *y_scale = float(framebuffer_height) / float(window_height);
+void get_glfw_scale(GLFWwindow *window, float *x_scale_ptr, float *y_scale_ptr) {
+    // Output
+    float x_scale;
+    float y_scale;
+
+    // Default
+    x_scale = y_scale = 1.0f;
+
+    // Detect Platform
+    if (glfwGetPlatform() == GLFW_PLATFORM_X11) {
+        // X11 Has No Scaling
+    } else {
+        // Get Window Size
+        int window_width;
+        int window_height;
+        glfwGetWindowSize(window, &window_width, &window_height);
+        // Get Framebuffer Size
+        int framebuffer_width;
+        int framebuffer_height;
+        glfwGetFramebufferSize(window, &framebuffer_width, &framebuffer_height);
+
+        // Calculate
+        if (window_width > 0 && window_height > 0) {
+            x_scale = float(framebuffer_width) / float(window_width);
+            y_scale = float(framebuffer_height) / float(window_height);
+        }
     }
+
+    // Return
+#define ret(x) if (x##_ptr) *x##_ptr = x
+    ret(x_scale);
+    ret(y_scale);
+#undef ret
 }
\ No newline at end of file