The SDL_gfx library offers several components: Graphic Primitives, Rotozoomer, Framerate control, and MMX image filters. The Primitives component provides basic drawing routines: pixels, hlines, vlines, lines, aa-lines, rectangles, circles, ellipses, trigons, polygons, Bezier curves, and an 8x8 pixmap font for drawing onto any SDL Surface. Full alpha blending, hardware surface locking, and all surface depths are supported. The Rotozoomer can use interpolation for high quality output.
The library is available as 32-bit and 64-bit:
Current version: v2.0.25-1