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 Benchmarking Platform
Phoromatic Test Orchestration

Mesa Can Do EXT_texture_compression_RGTC

Mesa

Published on 25 February 2011 03:08 PM EST
Written by Michael Larabel in Mesa
16 Comments

In Mesa's quest to catch up to the proprietary Linux drivers (and the graphics drivers available under Windows), they are now a tiny bit closer. David Airlie has announced on the Mesa mailing list that he has implemented support for the EXT_texture_compression_RGTC extension into Mesa.

The EXT_texture_compression_RGTC extension work is supported in core Mesa, the software Rasterizer, and with Gallium3D (works with the ATI R600g driver). This compression code is ported from Roland's DXTn texture work. While this is not the S3TC texture compression work, this OpenGL extension at least doesn't appear to be covered by any patents or other protected intellectual property.

The specification for EXT_texture_compression_RGTC can be found on the OpenGL registry. This extension is not new but was approved back in 2008 and was written against OpenGL 2.0.
This extension introduces four new block-based texture compression formats suited for unsigned and signed red and red-green textures (hence the name "rgtc" for Red-Green Texture Compression).

Too bad though it will still be a long time before Mesa reaches any sort of parity in terms of OpenGL extension support or even provides proper OpenGL 3.x/4.x support, with the Gallium3D/Mesa drivers still effectively living in the OpenGL 2.1 world.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Articles & Reviews
  1. Ubuntu 15.04 Offers Faster OpenGL For AMD Radeon GPUs On Open-Source
  2. Ubuntu 15.04 Brings Some Graphics Performance Improvements For Intel Haswell
  3. Sub-$20 802.11n USB WiFi Adapter That's Linux Friendly
  4. The Lenovo T450s Is Working Beautifully With Linux
  5. Linux 4.0 SSD EXT4 / Btrfs / XFS / F2FS Benchmarks
  6. Linux 4.0 Hard Drive Comparison With Six File-Systems
Latest Linux News
  1. GCC 4.9.2 vs. GCC 5 Benchmarks On An Intel Xeon Haswell
  2. Intel Haswell/Broadwell Power Use On Linux Still Moving Lower
  3. QEMU 2.3 Officially Released
  4. It's Been Three Years Since The Big Steam Linux Reveal
  5. Debian-Based Distribution Updated With KDE 3.5 Forked Desktop
  6. Intel Is Making Some Progress With Compute Shaders
  7. Linux 4.1-rc1 Kernel Released, Packs In Several New Features
  8. It Doesn't Look Like KDBUS Will Make It For Linux 4.1
  9. Debian 9.0 Is Codenamed Stretch
  10. AMD Radeon GPUs With Linux 4.0 + Mesa 10.6-devel
Most Viewed News This Week
  1. Ubuntu's Desktop-Next Switching From .DEBs To Snappy
  2. Systemd Kills Off Shutdownd
  3. My Favorite Computer Desk Of The Past Decade For Less Than $100
  4. KDBUS Still Hasn't Been Pulled, Might Not Land For Linux 4.1
  5. AMD Open-Sources "Addrlib" From Catalyst
  6. Debian 8.0 Jessie Is Ready For Release This Weekend
  7. Qt Creator 3.4 Brings C++ Programming Improvements & More
  8. GIMP's Porting To GTK3 Continues