add support for borderless windows

files/settings-default.cfg

@@ -6,6 +6,7 @@ resolution x = 800
 resolution y = 600
 
 fullscreen = false
+borderless = true
 screen = 0
 
 # Minimize the window if it loses key focus?

libs/openengine/ogre/renderer.cpp

@@ -128,7 +128,9 @@ void OgreRenderer::createWindow(const std::string &title, const WindowSettings&
       settings.window_x, // width, in pixels
       settings.window_y, // height, in pixels
       SDL_WINDOW_SHOWN
-        | (settings.fullscreen ? SDL_WINDOW_FULLSCREEN : 0) | SDL_WINDOW_RESIZABLE
+        | SDL_WINDOW_RESIZABLE
+        | (settings.fullscreen ? SDL_WINDOW_FULLSCREEN : 0)
+        | (settings.borderless ? SDL_WINDOW_BORDERLESS : 0)
     );
 
     SFO::SDLWindowHelper helper(mSDLWindow, settings.window_x, settings.window_y, title, settings.fullscreen, params);

libs/openengine/ogre/renderer.hpp

@@ -37,6 +37,7 @@ namespace OEngine
         {
             bool vsync;
             bool fullscreen;
+            bool borderless;
             int window_x, window_y;
             int screen;
             std::string fsaa;