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

Intel Gallium3D Gets sRGB Textures

Intel

Published on 27 June 2012 07:48 AM EDT
Written by Michael Larabel in Intel
11 Comments

The Intel "i915g" Gallium3D driver now implements sRGB textures support, but this is basically the end of the road for new features.

St├ęphane Marchesin, the founder of the Nouveau driver project that since moved on to working for Google on their Chrome OS team, committed to Mesa support for sRGB textures for this driver that targets the old i915 and i945 chipsets.

Google has been working on the i915g driver for use in Chrome OS by their original Chromebooks. They prefer the i915g driver to the i915 classic driver since the Gallium3D implementation can better emulate missing functionality using LLVM, etc. However, the i915g driver is now reaching a mature state and Google will lose interest in the driver as they turn to Sandy Bridge and Ivy Bridge for their Chromebooks. For the newer Intel hardware, Intel's Open-Source Technology Center remains committed to a "classic" Mesa DRI driver rather than Gallium3D and there is no community "G" alternative.

The Intel 915 hardware doesn't support sRGB textures so Marchesin's Mesa commit ends up emulating the textures using a shader. Thanks to the sRGB textures support, the i915g driver is now able to advertise OpenGL 2.1. However, Marchesin says, "I think this is as far as we can take the i915."

The sRGB textures are textures with standard RGB color-space encoded color components. This support has been part of the Khronos OpenGL specification since version 2.1 via the GL_EXT_texture_sRGB extension.

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 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. Linux 3.19-rc1 Kernel Released Ahead Of Schedule
  2. Civilization: Beyond Earth Linux GPU/Driver Benchmarks
  3. X.Org Server 1.16.3 Released To Fix Security Issues
  4. Linux 3.19 Merge Window Closes Ahead Of Schedule
  5. MIPS R6 Architecture Now Supported By GCC
  6. LowRISC To Feature Tagged Memory & Minion Cores
  7. Intel Skylake Audio Support For Linux 3.19
  8. After 10+ Years, NetworkManager Reaches v1.0
  9. VDPAU Updated To v0.9
  10. An Open Hardware Random Number Generator Proposed
Latest Forum Discussions
  1. FPS capped on Linux (AMD fglrx drivers)
  2. Need some hand holding with upgrading xserver
  3. Are there an app using HSA ?
  4. The New SuperTuxKart Looks Better, But Can Cause GPU/Driver Problems
  5. XLennart: A Game For Systemd Haters With Nothing Better To Do
  6. Updated and Optimized Ubuntu Free Graphics Drivers
  7. Debian init discussion in Phoenix Wright format
  8. Bench specific mount point