#include "video/sdl/sdl_renderer.hpp"
-#include <iomanip>
-#include <iostream>
-#include <physfs.h>
-
#include "video/drawing_request.hpp"
#include "video/sdl/sdl_surface_data.hpp"
#include "video/sdl/sdl_texture.hpp"
+#include <iomanip>
+#include <iostream>
+#include <physfs.h>
+#include <sstream>
+#include <stdexcept>
+
namespace {
SDL_Surface *apply_alpha(SDL_Surface *src, float alpha_factor)