01_hello_SDL 02_getting_an_image_on_the_screen 03_event_driven_programming 04_key_presses 05_optimized_surface_loading_and_soft_stretching 06_extension_libraries_and_loading_other_image_formats 07_texture_loading_and_rendering 08_geometry_rendering 09_the_viewport 10_color_keying 11_clip_rendering_a