nouveau is an X.Org Foundation and Freedesktop.org project which was initially based on the obfuscated 2D-only free and open source "nv" driver, aiming to develop free software drivers for NVIDIA graphics cards, by reverse engineering NVIDIA's current proprietary drivers for Linux. A screenshot, screen capture, or screen dump is an Image taken by the Computer to record the visible items displayed on the monitor The XOrg Foundation is the organization holding the stewardship for the development of the X Window System. Free software or software libre is Software that can be used studied and modified without restriction and which can be copied and redistributed in modified or unmodified Open source software (OSS began as a marketing campaign for Free software. In computing a device driver or software driver is a Computer program allowing higher-level computer programs to interact with a Hardware device The multinational NVIDIA Corporation ( (ɪnˈvɪdiə specializes in the manufacture of graphics-processor technologies for Workstations A video card, also known as a graphics accelerator card, display adapter, or graphics card, is a hardware component whose function is to Reverse engineering (RE is the process of discovering the technological principles of a device object or system through analysis of its structure function and operation Proprietary software is Computer software on which the producer has set restrictions on use private modification copying, or republishing. Linux (commonly pronounced ˈlɪnəks
Like most other 3D graphics drivers for X.Org, nouveau is implemented as a module and is licensed under the MIT license. Modular programming is a software design technique that increases the extent to which software is composed from separate parts called modules The MIT License is a Free software license originating at the Massachusetts Institute of Technology (MIT used by the MIT X Consortium. It originally used the Direct Rendering Infrastructure of Mesa 3D for rendering 3D computer graphics which allows to accelerate 3D drawing using the graphics processing unit, directly from the 3D application, but in February 2008 the work on DRI support ceased and moved on to the new Gallium3D. In Computing, the Direct Rendering Infrastructure ( DRI) is an interface and a Free software implementation used in the X Window System 3D computer graphics (in contrast to 2D computer graphics) are graphics that use a three-dimensional representation of geometric data that is stored in the computer [1][2]
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Tools
The project uses several custom made programs for its reverse engineering, such as mmio-trace and renouveau.
Renouveau
Renouveau stands for most of the reverse engineering work. Users with the proprietary NVIDIA drivers can help the development of nouveau by providing information about the hardware of their NVIDIA cards. This is done running renouveau on their computers. Renouveau works by copying the current graphics card MMIO register space, drawing some graphics and taking another copy of the MMIO, and outputting the difference to a text file. Memory-mapped I/O ( MMIO) and port I/O (also called port-mapped I/O or PMIO) are two complementary methods of performing Input/output It runs slightly over 70 different tests which the user of the computer then makes a tar. Tar is a viscous black Liquid derived from the Destructive distillation of organic matter bz2 archive of and submits it by e-mail, after which it is automatically transferred to the project's FTP servers for the developers to analyze. Electronic mail, often abbreviated to e-mail, email, or originally eMail, is a Store-and-forward method of writing sending receiving
Renouveau is licensed under the GPL and is built on SDL's rendering technology. Simple DirectMedia Layer ( SDL) is a cross-platform Free and open source software multimedia library written in C that presents a simple interface
See also
External links
References
- ^ The state of Nouveau, part 2. Free and open source software (FOSS can be used with a variety of Graphics hardware, largely via the X LWN.net (2008-02-26). 2008 ( MMVIII) is the current year in accordance with the Gregorian calendar, a Leap year that started on Tuesday of the Common Events 747 BC - Epoch (origin of Ptolemy 's Nabonassar Era 364 - Valentinian I is proclaimed Retrieved on 2008-03-07. 2008 ( MMVIII) is the current year in accordance with the Gregorian calendar, a Leap year that started on Tuesday of the Common Events 161 - Roman Emperor Antoninus Pius dies and is succeeded by co-Emperors Marcus Aurelius and Lucius Verus
- ^ Nouveau Companion 36. Retrieved on 2008-03-07. 2008 ( MMVIII) is the current year in accordance with the Gregorian calendar, a Leap year that started on Tuesday of the Common Events 161 - Roman Emperor Antoninus Pius dies and is succeeded by co-Emperors Marcus Aurelius and Lucius Verus
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