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

Nouveau NV10-NV20 Can Now Handle S3TC

Nouveau

Published on 02 May 2012 07:53 AM EDT
Written by Michael Larabel in Nouveau
12 Comments

While still not available by default, the Nouveau NV10/NV20 Mesa DRI driver can now handle S3TC texture compression support when available.

A commit landed in Mesa Git master yesterday by Viktor Novotný for added general support for compressed formats to the Nouveau DRI driver (read: their pre-Gallium3D driver for the oldest NVIDIA fixed-function hardware) and that was followed up by actually added in the S3TC support for the NV10/NV20 class hardware (the second commit).

The Nouveau NV10 class hardware is the GeForce 256, GeForce 2, and GeForce 4 MX GPUs. The NV20 is the GeForce 3 and GeForce 4 Ti series.

Using S3TC for these older NVIDIA GPUs or any of the other open-source Mesa/Gallium3D drivers still requires the external libtxc_dxtn library. You won't find this DXTn library part of Mesa or shipped by tier-one distributions due to patent concerns about S3TC texture compression support. The same goes for the other newer Mesa/Gallium3D drivers too for Nouveau/Intel/Radeon where there can be S3TC support exposed, but it's not by default in this open-source code.

Additional information on the Mesa S3TC status can be found from this Wiki page while the S3TC library code remains at this Git repository.

As well, I was recently explaining this lack of S3 Texture Compression support by default in open-source Linux graphics drivers to a major game developer. He found these patent concerns to be silly to even the point of pure stupidity and will be looking at what can be done to resolve these concerns so there could be this support "out of the box" seeing as how many modern OpenGL games require this texture compression functionality.

Latest Linux Hardware Reviews
  1. Overclocking The AMD AM1 Athlon & Sempron APUs
  2. AMD Athlon 5350 / 5150 & Sempron 3850 / 2650
  3. Upgraded Kernel & Mesa Yield A Big Boost For Athlon R3 Graphics
  4. AMD Athlon 5350 APU On Linux
Latest Linux Articles
  1. A Quick Look At GCC 4.9 vs. LLVM Clang 3.5
  2. Are AMD Athlon/Sempron APUs Fast Enough For Steam On Linux?
  3. AMD Athlon's R3 Graphics: RadeonSI Gallium3D vs. Catalyst
  4. GCC 4.9 Compiler Optimization Benchmarks For Faster Binaries
Latest Linux News
  1. Fedora Workstation Is Making Me Quite Excited
  2. Maynard: A Lightweight Wayland Desktop
  3. Chromium Browser Going Through Growing Pains In Ubuntu 14.04
  4. KDE 4.13 Is Being Released Today With New Features
  5. Trying Out Radeon R9 290 Graphics On Open-Source
  6. Intel Broadwell GT3 Graphics Have Dual BSD Rings
  7. Early Linux 3.15 Benchmarks Of Intel Core i7 + Radeon
  8. Red Hat Releases Its RHEL 7 Release Candidate
  9. New Features Coming To Xubuntu 14.04 LTS
  10. NVIDIA Officially Releases CUDA 6
  11. Google Releases An AutoFDO Converter For Perf In LLVM
  12. Fedora 21 To Evaluate Remote Journal Logging, 64-bit ARM Emulation
Latest Forum Discussions
  1. The GNOME Foundation Is Running Short On Money
  2. Change installation destination from home directory
  3. After Jack Keane, RuseSoft will briing Ankh 3 to Linux through Desura
  4. Linux Kernel Developers Fed Up With Ridiculous Bugs In Systemd
  5. Bye bye BSD, Hello Linux: A Sys Admin's Story
  6. New tool for undervolt/overclock AMD K8L and K10 processors
  7. How to enable opengl 3.3 on r9 270?
  8. R290x sound problems