From 16e3c549a06c2b10c07010c141b56c8234620b9a Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Sun, 21 Mar 2021 11:18:15 +0100
Subject: [PATCH] in SDL1, don't reopen the window needlessly

---
 basegraph.cpp | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/basegraph.cpp b/basegraph.cpp
index a10c5dbf..44bef54f 100644
--- a/basegraph.cpp
+++ b/basegraph.cpp
@@ -1128,11 +1128,7 @@ EX bool want_vsync() {
   return vid.want_vsync;
   }
 
-EX bool need_to_apply_screen_settings() {
-  if(vid.want_fullscreen != vid.full)
-    return true;
-  if(make_pair(vid.xres, vid.yres) != get_requested_resolution())
-    return true;
+EX bool need_to_reopen_window() {
   if(vid.want_antialias != vid.antialias)
     return true;
   if(vid.wantGL != vid.usingGL)
@@ -1142,6 +1138,16 @@ EX bool need_to_apply_screen_settings() {
   return false;
   }
 
+EX bool need_to_apply_screen_settings() {
+  if(need_to_reopen_window())
+    return true;
+  if(vid.want_fullscreen != vid.full)
+    return true;
+  if(make_pair(vid.xres, vid.yres) != get_requested_resolution())
+    return true;
+  return false;
+  }
+
 EX void close_renderer() {
   #if CAP_SDL2
   if(s_renderer) SDL_DestroyRenderer(s_renderer), s_renderer = nullptr;
@@ -1173,7 +1179,8 @@ EX void apply_screen_settings() {
   #endif
 
   #if !CAP_SDL2
-  SDL_QuitSubSystem(SDL_INIT_VIDEO);
+  if(need_to_reopen_window())
+    SDL_QuitSubSystem(SDL_INIT_VIDEO);
   #endif
 
   graphics_on = false;