From fcf91b33fd6968628c8f22b1c9af378985ab69a8 Mon Sep 17 00:00:00 2001
From: DeaDDooMER <deaddoomer@deadsoftware.ru>
Date: Wed, 1 Apr 2020 15:26:44 +0400
Subject: [PATCH] sdl: fix videomode flags on fullscreen toggle

---
 src/sdl/main.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/sdl/main.c b/src/sdl/main.c
index 07dccf9..df880c4 100644
--- a/src/sdl/main.c
+++ b/src/sdl/main.c
@@ -137,9 +137,12 @@ void Y_unset_videomode (void) {
 
 void Y_set_fullscreen (int yes) {
   assert(surf != NULL);
-  Uint32 flags = surf->flags & ~SDL_FULLSCREEN;
+  int flags = 0;
   if ((surf->flags & SDL_FULLSCREEN) == 0) {
-    flags |= SDL_FULLSCREEN;
+    flags |= SYSTEM_USE_FULLSCREEN;
+  }
+  if (surf->flags & SDL_OPENGL) {
+    flags |= SDL_OPENGL;
   }
   Y_set_videomode(surf->w, surf->h, flags);
 }
-- 
2.29.2