Feature: Choose a sensible window size on a fresh OTTD config file. (#8536)

src/video/cocoa/cocoa_v.mm

@@ -200,6 +200,8 @@ const char *VideoDriver_Cocoa::Start(const StringList &parm)
 	/* Don't create a window or enter fullscreen if we're just going to show a dialog. */
 	if (!CocoaSetupApplication()) return NULL;
 
+	this->UpdateAutoResolution();
+
 	this->orig_res = _cur_resolution;
 	int width  = _cur_resolution.width;
 	int height = _cur_resolution.height;
@@ -302,6 +304,15 @@ void VideoDriver_Cocoa::EditBoxLostFocus()
 	HandleTextInput(NULL, true);
 }
 
+/**
+ * Get the resolution of the main screen.
+ */
+Dimension VideoDriver_Cocoa::GetScreenSize() const
+{
+	NSRect frame = [ [ NSScreen mainScreen ] frame ];
+	return { static_cast<uint>(NSWidth(frame)), static_cast<uint>(NSHeight(frame)) };
+}
+
 /**
  * Handle a change of the display area.
  */