Full description
SDL graphics drawing primitives and other support functions
		The SDL_gfx library evolved out of the SDL_gfxPrimitives code which provided basic drawing
		routines such as lines, circles or polygons and SDL_rotozoom which implemented a
		interpolating rotozoomer for SDL surfaces.
		The current components of the SDL_gfx library are:
		* Graphic Primitives (SDL_gfxPrimitves.h)
		* Rotozoomer (SDL_rotozoom.h)
		* Framerate control (SDL_framerate.h)
		* MMX image filters (SDL_imageFilter.h)
		The library is backwards compatible to the above mentioned code. Its is written in plain C
		and can be used in C++ code.