From 12cb46d94edd675a2788cb138112e4cdfbb7eaa6 Mon Sep 17 00:00:00 2001
From: terminx <terminx@1a8010ca-5511-0410-912e-c29ae57300e0>
Date: Thu, 15 Aug 2019 16:57:26 +0000
Subject: [PATCH] Fix borderless windowed fullscreen mode

git-svn-id: https://svn.eduke32.com/eduke32@8020 1a8010ca-5511-0410-912e-c29ae57300e0
---
 source/build/src/sdlayer.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/source/build/src/sdlayer.cpp b/source/build/src/sdlayer.cpp
index 47c09c113..79a89b98a 100644
--- a/source/build/src/sdlayer.cpp
+++ b/source/build/src/sdlayer.cpp
@@ -1586,7 +1586,7 @@ int32_t videoSetMode(int32_t x, int32_t y, int32_t c, int32_t fs)
     SDL_DisplayMode desktopmode;
     SDL_GetDesktopDisplayMode(0, &desktopmode);
 
-    int const windowedMode = (desktopmode.w == x && desktopmode.h == y) ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0;
+    int const windowedMode = (desktopmode.w == x && desktopmode.h == y) ? SDL_WINDOW_BORDERLESS : 0;
 
 #ifdef USE_OPENGL
     if (c > 8 || !nogl)
@@ -1649,7 +1649,8 @@ int32_t videoSetMode(int32_t x, int32_t y, int32_t c, int32_t fs)
                 return -1;
             }
 
-            SDL_SetWindowFullscreen(sdl_window, ((fs & 1) ? SDL_WINDOW_FULLSCREEN : windowedMode));
+            // this is using the windowedMode variable to determine whether to pass SDL_WINDOW_FULLSCREEN or SDL_WINDOW_FULLSCREEN_DESKTOP
+            SDL_SetWindowFullscreen(sdl_window, ((fs & 1) ? windowedMode ? SDL_WINDOW_FULLSCREEN_DESKTOP : SDL_WINDOW_FULLSCREEN : windowedMode));
             SDL_GL_SetSwapInterval(vsync_renderlayer);
 
             setrefreshrate();