Select video mode with square pixel size

src/settings_gui.cpp

@@ -642,12 +642,6 @@ struct GameOptionsWindow : Window {
 			case WID_GO_GUI_ZOOM_DROPDOWN:
 				GfxClearSpriteCache();
 				_gui_zoom = (ZoomLevel)(ZOOM_LVL_OUT_4X - index);
-				switch (_gui_zoom) {
-					case ZOOM_LVL_OUT_4X - ZOOM_LVL_NORMAL: ChangeResInGame(854, 480); break;
-					case ZOOM_LVL_OUT_4X - ZOOM_LVL_OUT_2X: ChangeResInGame(1280, 720); break;
-					case ZOOM_LVL_OUT_4X - ZOOM_LVL_OUT_4X: ChangeResInGame(1920, 1080); break;
-					default: break;
-				}
 				UpdateCursorSize();
 				UpdateAllVirtCoords();
 				ReInitAllWindows();

src/table/misc_settings.ini

@@ -121,7 +121,7 @@ name     = ""resolution""
 type     = SLE_INT
 length   = 2
 var      = _cur_resolution
-def      = ""854,480""
+def      = ""1,480""
 cat      = SC_BASIC
 
 [SDTG_STR]

src/video/sdl_v.cpp

@@ -251,7 +251,9 @@ static void GetVideoModes()
 			}
 		}
 		_num_resolutions = n;
+#if !defined(__ANDROID__) // Android has native screen sizes first, do not sort them
 		SortResolutions(_num_resolutions);
+#endif
 	}
 }
 
@@ -268,8 +270,14 @@ static void GetAvailableVideoMode(uint *w, uint *h)
 	/* Use the closest possible resolution */
 	int best = 0;
 	uint delta = Delta(_resolutions[0].width, *w) * Delta(_resolutions[0].height, *h);
+	if (*w <= 1) {
+		delta = Delta(_resolutions[0].height, *h);
+	}
 	for (int i = 1; i != _num_resolutions; ++i) {
 		uint newdelta = Delta(_resolutions[i].width, *w) * Delta(_resolutions[i].height, *h);
+		if (*w <= 1) {
+			newdelta = Delta(_resolutions[i].height, *h);
+		}
 		if (newdelta < delta) {
 			best = i;
 			delta = newdelta;

todo.txt

@@ -9,5 +9,3 @@
 
 - Create auto-save when the app is put to background, and load it on the next start.
 
-- Select native screen width x 480 resolution on first run.
-