public marks

PUBLIC MARKS from tadeufilippini with tags linux & opensource

February 2008

WinLibre - Free Software

ree software is software for which you have the source code and whose license allows this code to be passed on - whether modified or not. The opposite is known as "proprietary" software. However, access to the source code alone does not necessarily mean that software is "free", and free access has nothing to do with free of charge. Thus, free software is not freeware or shareware, and software whose source code is available is not necessarily free. The definition of "free software" refers to the fact that users are free to run, copy, distribute, study, modify and improve the software. More precisely it refers to four types of freedom for the software user : * Freedom to run the program - for whatever use. * Freedom to examine how the program works and adapt it to your needs. This freedom requires access to the source code. * Freedom to redistribute copies. * Freedom to improve the program and publish these improvements - to the benefit of the entire community. This freedom again requires access to the source code.

Direct Rendering Open Source Project

The Direct Rendering Infrastructure, also known as the DRI, is a framework for allowing direct access to graphics hardware under the X Window System in a safe and efficient manner. It includes changes to the X server, to several client libraries, and to the kernel (DRM, Direct Rendering Manager). The most important use for the DRI is to create fast OpenGL implementations. The DRI is an integral part of X.org 7.x, and integrates with Mesa, an open source implementation of the OpenGL API. Several 3D accelerated drivers have been written to the DRI specification, including drivers for chipsets produced by ATI, Matrox, 3DFX, and Intel. The DRI was initially developed by Precision Insight, Inc. (PI) in cooperation with, and partially funded by Red Hat Inc., and SGI. Since PI's merger with VA Linux, and VA Linux' subsequent exit from Linux, the DRI is being maintained by Tungsten Graphics Inc., a new company formed by some of the initial DRI developers from PI. Tungsten Graphics is the current focal point for DRI development, and many open source developers continue to contribute to the project through the DRI project.

January 2008

December 2007

October 2007