Align fullscreen feature implementation

Author: drhelius

platforms/shared/desktop/application.cpp

@@ -220,14 +220,17 @@ void application_trigger_fullscreen(bool fullscreen)
         }
         else
         {
-            // Desktop fullscreen: no display mode
+            // Borderless fullscreen (default): pass NULL for desktop fullscreen
             SDL_SetWindowFullscreenMode(application_sdl_window, NULL);
         }
+
         SDL_SetWindowFullscreen(application_sdl_window, true);
+        SDL_ERROR("SDL_SetWindowFullscreen");
     }
     else
     {
         SDL_SetWindowFullscreen(application_sdl_window, false);
+        SDL_ERROR("SDL_SetWindowFullscreen");
     }
     config_emulator.fullscreen = fullscreen;
 #endif

platforms/shared/desktop/config.cpp

@@ -279,7 +279,7 @@ void config_read(void)
 
     config_emulator.maximized = read_bool("Emulator", "Maximized", false);
     config_emulator.fullscreen = read_bool("Emulator", "FullScreen", false);
-    config_emulator.fullscreen_mode = read_int("Emulator", "FullScreenMode", 1);
+    config_emulator.fullscreen_mode = read_int("Emulator", "FullScreenMode", 0);
     config_emulator.always_show_menu = read_bool("Emulator", "AlwaysShowMenu", false);
     config_emulator.ffwd_speed = read_int("Emulator", "FFWD", 1);
     config_emulator.save_slot = read_int("Emulator", "SaveSlot", 0);

platforms/shared/desktop/config.h

@@ -46,7 +46,7 @@ struct config_Emulator
 {
     bool maximized = false;
     bool fullscreen = false;
-    int fullscreen_mode = 1;
+    int fullscreen_mode = 0;
     bool always_show_menu = false;
     bool paused = false;
     int save_slot = 0;

platforms/shared/desktop/gui_menus.cpp

@@ -702,7 +702,7 @@ static void menu_video(void)
         if (ImGui::BeginMenu("Fullscreen Mode"))
         {
             ImGui::PushItemWidth(130.0f);
-            ImGui::Combo("##fullscreen_mode", &config_emulator.fullscreen_mode, "Full Screen Desktop\0Full Screen\0\0");
+            ImGui::Combo("##fullscreen_mode", &config_emulator.fullscreen_mode, "Borderless\0Exclusive\0\0");
             ImGui::PopItemWidth();
             ImGui::EndMenu();
         }