+void Texture2D::sub_image(unsigned level, int x, int y, unsigned wd, unsigned ht, PixelComponents comp, DataType type, const void *data)
+{
+ if(comp!=get_components(format) || type!=get_component_type(format))
+ throw incompatible_data("Texture2D::sub_image");
+ sub_image(level, x, y, wd, ht, data);
+}
+