GLT ZPR is a mouse manipulation module for C or C++ GLUT/OpenGL programs. The module supplies GLUT callbacks for glutReshapeFunc, glutMouseFunc, glutMotionFunc. These provide VRML examiner-style mouse manipulation using the left, middle, and right mouse buttons. The middle button can be emulated by using both left and right together.
SDL_sound is a library that handles the decoding of several popular sound file formats such as .WAV and .MP3. Designed to make the task of sound playback easier, SDL_sound accepts files or other input through an abstraction layer and returns the decoded waveform. SDL_sound can decode a whole sound file and hand back a single pointer to the waveform, or SDL_sound can process sound data in programmer-specified blocks when resource constraints are a concern. SDL_sound can also handle sample rate, audio format, and channel conversion on-the-fly.
Cfour is a collection of reusable classes to simply common programming tasks and lower development time. The collection currently includes classes for easy file I/O with redirection and class persistence support, console printing for character output menus, effortlessly obtaining CGI data, loading/storing cookies, and translation between data pairs and XML style tags.
GNU Lightning is a library that generates assembly language code at run time. It is very fast, making it ideal for Just-In-Time compilers, and it abstracts over the target CPU, as it exposes to the clients a standardized RISC instruction set (inspired by the MIPS and SPARC chips).