title: Fastest way to draw filled quad/triangle with the SDL2 renderer?
body: <p>I have a game written using SDL2, and the SDL2 renderer (hardware accelerated) for drawing. Is there a trick to draw filled quads or triangles?</p>
  <p>At the moment I'm filling them by just drawing lots of lines (SDL_Drawlines), but the performance stinks.</p>
  <p>I don't want to go into OpenGL.</p>