1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Drawing Open-Source Triangles On The ATI RV770

Michael Larabel

Published on 31 December 2008
Written by Michael Larabel
Page 1 of 2 - 52 Comments

On Monday AMD released the open-source R600/700 3D code to begin fostering the development of an open-source 3D driver for their newer ATI hardware while the related programming documentation still on the way. This code that's finally out in the public domain brings basic EXA acceleration and X-Video support, but on the 3D side there isn't any usable OpenGL support. It is expected that there will be a modest level of open-source 3D support for the ATI R600 and R700 series in the first half of 2009 for end-users, but for now there is just the DRM code and an r600_demo program. In this article we are taking a brief look at this r600_demo debugging utility on the RV770 hardware.

The r600_demo program is described as a "DRM/DRI exercise utility" designed for hardware driver hackers. This utility was originally derived from the earlier r300_demo code, but since then this code has been virtually rewritten in its entirety. Among the capabilities of r600_demo is dumping the GPU and DRM states, command processor setup testing, more extensive command processor tests, triangle testing, texture tests, and GPU reset ability. This open-source code also supports dumping all known GPU registers as well as manually setting register values for testing. The r600_demo can also provide direct ring programming capabilities. Over 18,000 lines of code make up this program.

While r600_demo is not intended for end-users, if you are an enthusiast or developer interested in trying out this experimental code it can be found in the r600_demo Git repository at FreeDesktop.org. Running r600_demo requires a relatively recent version of the xf86-video-radeonhd driver and the latest DRM code (currently found in the r6xx-r7xx-support branch of mesa/drm). In order to use r600_demo, DRI must be enabled and any form of 2D acceleration be disabled from the xorg.conf. As the r600_demo code feeds commands to the hardware through the DRM and doesn't use OpenGL or anything else interpretive, there is no need for Mesa or any other dependencies. The r600_demo utility is programmed to work just on the R600 and R700 series. We had run the latest development code for the RadeonHD driver, R600/700 DRM, and r600_demo on an Ubuntu 8.10 installation with a ATI Radeon HD 4870.

We have triangles! Albeit not anything fancy like glxgears, there's just two triangles to show in the corner of the display.

<< Previous Page
1
Latest Linux Hardware Reviews
  1. A Walkthrough Of The New 32 System Open-Source Linux Benchmarking Test Farm
  2. Habey MITX-6771: Mini-ITX Board With Quad-Core J1900 Bay Trail
  3. OCZ Vector 150 SSD On Linux
  4. Noctua i4 CPU Cooler: Great For Cooling High-End LGA-2011v3 CPUs
Latest Linux Articles
  1. AMD Kaveri: Open-Source Radeon Gallium3D vs. Catalyst 14.12 Omega Driver
  2. 12-Way AMD Catalyst 14.12 vs. NVIDIA 346 Series Linux GPU Comparison
  3. AMD Catalyst 14.12 Omega Driver Brings Mixed Results For Linux Users
  4. 6-Way Winter 2014 Linux Distribution Comparison
Latest Linux News
  1. WTFTW: A Tiling Window Manager Written In Rust
  2. Jolla's Sailfish OS Update 10 Is Now Available
  3. HP To Launch Linux++ Operating System Next Year
  4. Civilization: Beyond Earth Launches For Linux
  5. NIR Has Been Revised As A New IR For Mesa
  6. New 64-bit Linux Kernel Vulnerabilities Disclosed This Week
  7. PostgreSQL 9.4 Brings JSONB & Many Other New Features
  8. That Nasty Linux Kernel Lockup Bug Is Still Unresolved
  9. KDE's Krita Loses Its Main Backer
  10. Inline Data Support Comes To CephFS With Linux 3.19
Latest Forum Discussions
  1. XLennart: A Game For Systemd Haters With Nothing Better To Do
  2. Bench specific mount point
  3. Tool for measuring FPS in games
  4. Need some hand holding with upgrading xserver
  5. Ubuntu Developers Still Thinking What To Do About Adobe Flash Support
  6. Microsoft buying Mojang
  7. Updated and Optimized Ubuntu Free Graphics Drivers
  8. Premium subscription "login" times out much faster than forum