SDL I don't get the basic model or structure that sdl presents, by that I mean the basic elements in SDL library. I don't get when to use surface, when texture and when render.
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The main difference between
SDLandSDL2is that theSurfaceAPI has been largely replaced with theRenderAPI. The rule of thumb is to useSurfacewhen you need to do software pixel manipulation, and useRenderwhen you need to draw lots of stuff to the screen really fast.For example it would be reasonable to load an image into a
SDL_Surface, combine it with some text originating in a second surface, and then convert the composite image to aSDL_Texturethat is rendered to the screen every frame.If you want to draw to the screen, use the
RenderAPI.