sdl_gfx: SDL_gfx (SDL gfx library) sdl_gfx: sdl_gfx: SDL graphics drawing primitives and other support functions. The sdl_gfx: SDL_gfx library evolved out of the SDL_gfxPrimitives code which sdl_gfx: provided basic drawing routines such as lines, circles or polygons sdl_gfx: and SDL_rotozoom which implemented a interpolating rotozoomer for sdl_gfx: SDL surfaces. sdl_gfx: sdl_gfx: sdl_gfx: sdl_gfx: