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

Clutter's Cogl Relicensed To Be More Permissive

GNOME

Published on 15 January 2014 03:48 AM EST
Written by Michael Larabel in GNOME
19 Comments

An effort led by Intel Linux developers has resulted in Cogl being made availablw now under the MIT license instead of the LGPL. Cogl is the GNOME/Clutter project that provides a low-level OpenGL abstraction library.

Cogl is a low-layer to the Clutter tool-kit to abstract out OpenGL rendering so that the common rendering API can transparently target OpenGL, OpenGL ES 1.1, and OpenGL ES 2.0. Robert Bragg at Intel as one of the Cogl maintainers had proposed last month that this OpenGL library be made available under the permissive MIT license rather than the LGPLv2.1+ license.

The motive for moving to a more permissive license is due to investigations about using Cogl with EmScripten for enabling WebGL accelerated development of client-side web applications. Some of EmScripten's C/C++ ports to JavaScript using LLVM are of closed-source software, so if wanting Cogl, an MIT-licensed solution is more appropriate.

Cogl under the MIT is also useful for the related Rig project that is a UI technology for building/bundling complete applications on different operating systems. There's benefits here if Cogl is under a more permissive license than the LGPL.

Another reason used for pushing Cogl under the MIT license is also to facilitate better code sharing with projects like Wayland/Weston that are permissively licensed.

Bragg wrote in his re-licensing proposal, "Switching to the MIT license means we can no longer force Cogl changes to be kept open, but I think we gain simplicity and legal clarity for some awkward use cases that actually matter to us. Personally I think that these days a lot more people understand the real value you can get from collaborating on open source software that I'm less concerned about the possibility of developers taking and not giving back. I'm also inclined to think we're more likely to get valuable contributions anyway from developers that are genuinely interested in giving something back than from developers only reluctantly giving back because they are forced to. A bigger concern for me is that people simply avoid using my code at all because they're put off by a complex license."

The Cogl re-licensing happened today with this Git change.

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. Linux Compiler Benchmarks Of LLVM Clang 3.5 vs. LLVM Clang 3.6-rc1
  2. Intel Broadwell HD Graphics 5500: Windows 8.1 vs. Linux
  3. Linux Benchmarks Of NVIDIA's Early 2015 GeForce Line-Up
  4. NVIDIA GeForce GTX 960: A Great $200 GPU For Linux Gamers
  5. Disk Encryption Tests On Fedora 21
  6. Xonotic 0.8 Performance With The Open-Source AMD/NVIDIA Gallium3D Drivers
Latest Linux News
  1. Ubuntu's Mir Gains Server-Side Platform Probing
  2. Broadwell Linux Ultrabook Running MUCH Cooler Than Haswell
  3. LZHAM 1.0 Lossless Data Compression Codec Released
  4. LibreOffice 4.4 Is Coming Soon With New Features
  5. Linux Users Upset By Chromium's Busted HiDPI Support
  6. BPF Backend Merged Into LLVM To Make Use Of New Kernel Functionality
  7. Dying Light Is Headed To Linux, SteamOS
  8. Wayland 1.6.1 & Weston 1.6.1 Released
  9. Mesa 10.4.3 Brings A Bunch Of Fixes For The Direct3D "Nine" Support
  10. Intel Has A Few More Graphics Changes For The Linux 3.20 Kernel
Most Viewed News This Week
  1. Windows 10 To Be A Free Upgrade: What Linux Users Need To Know
  2. CoreOS Moves From Btrfs To EXT4 + OverlayFS
  3. Google Admin Encourages Trying Btrfs, Not ZFS On Linux
  4. TraceFS: The Newest Linux File-System
  5. My Initial Intel Broadwell Linux Experience With The ThinkPad X1 Carbon
  6. Mozilla's Servo Still On Track For 2015 Alpha Release
  7. Fedora 23 Likely To Pursue Wayland By Default
  8. Keith Packard Leaves Intel's Linux Graphics Work