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).
SDL_sif is a simple addon library for SDL for defining areas in which to catch events. Areas can be everything from simple rectangles and polygons to combinations of more advanced shapes, like union, difference, and so on. Once an area is set up, you will receive SDL events with information about what happened where.