From bbcc453ae2baf735a69a3361ea12ccb7465a16fe Mon Sep 17 00:00:00 2001
From: CocoSimone <simococo03@gmail.com>
Date: Fri, 9 Dec 2022 05:40:32 +0100
Subject: [PATCH] DPI awareness, TODO: handle moving to different monitors

---
 src/frontend/imgui/Window.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/frontend/imgui/Window.cpp b/src/frontend/imgui/Window.cpp
index c192450a..f837a909 100644
--- a/src/frontend/imgui/Window.cpp
+++ b/src/frontend/imgui/Window.cpp
@@ -5,6 +5,7 @@
 #include <nlohmann/json.hpp>
 #include <filesystem>
 #include <SDL.h>
+#include <SDL_vulkan.h>
 
 VkInstance instance{};
 using json = nlohmann::json;
@@ -116,6 +117,17 @@ void Window::InitImgui(const n64::Core& core) {
   uiFont = io.Fonts->AddFontFromFileTTF("resources/OpenSans.ttf", 15.f);
   codeFont = io.Fonts->AddFontFromFileTTF("resources/Sweet16.ttf", 15.f);
 
+  int displayIndex = SDL_GetWindowDisplayIndex(window);
+  float ddpi, hdpi, vdpi;
+  SDL_GetDisplayDPI(displayIndex, &ddpi, &hdpi, &vdpi);
+
+  ddpi /= 96.f;
+
+  uiFont = io.Fonts->AddFontFromFileTTF("resources/OpenSans.ttf", 16.f * ddpi);
+  codeFont = io.Fonts->AddFontFromFileTTF("resources/Sweet16.ttf", 16.f * ddpi);
+
+  ImGui::GetStyle().ScaleAllSizes(ddpi);
+
   {
     VkCommandBuffer commandBuffer = GetVkCommandBuffer();
     ImGui_ImplVulkan_CreateFontsTexture(commandBuffer);