unique_ptr based management for SDL_Surfaces

texture.hh

@@ -61,6 +61,7 @@ private:
 
 class Texture2D {
 public:
+  Texture2D();
   Texture2D(unsigned width, unsigned height, bool alpha = false);
   Texture2D(std::string const& file);
   Texture2D(SDL_Surface *surface);
@@ -76,7 +77,11 @@ public:
   void bind() const;
 
   void copyFromSurface(SDL_Surface *src);
-  SDL_Surface* copyToSurface();
+  SDLSurfaceUPtr copyToSurface();
+
+  unsigned getWidth() const { return width_; }
+  unsigned getHeight() const { return height_; }
+  bool getAlpha() const { return alpha_; }
   
 private: