libmng -THE reference library for reading, displaying, writing and examining Multiple-Image Network Graphics. MNG is the animation extension to the popular PNG image-format.
Renderer for subtitle format SSB.
SSBRenderer is a plugin for frameservers on Windows & Unix platforms to render 2D graphics by SSB (Substation Beta) data on frames of video streams.
Artist is a portable 2D graphics library. Main features are: drawing primitives, bitmap blitting, alpha blending, zoom and rotation, text rendering and image file loading. It uses hardware acceleration and provides a simple and elegent API.
SunShine is portable, zlib/libpng licensed 2D engine. It will allow you to write own 2D game without any knowlege about graphics API.
A basic graphics, sound, input and utility library for games and applications, geared towards flexibility, ease of use/prototyping/debugging, portability and performance.
Simple Includable Graphical User Interface - for use with SFML. A c++ source and header file which are easily included into your project to provide a full featured GUI.