Mesa 7.3 Gets Primed With GLSL 1.20, GEM, DRI2
Written by Michael Larabel in Mesa on 8 January 2009 at 07:37 PM EST. 11 Comments
It's been over four months since Mesa 7.1 was released and about three months since Mesa 7.2 (the stabilized version of 7.1), but now Mesa 7.3 is getting primed and ready to enter the limelight. As the first step, Mesa 7.3 Release Candidate 1 will be pushed out shortly.

One of the primary features of Mesa 7.3 is enhanced support for GLSL 1.20. Version 1.20 of the OpenGL Shading Language was released in 2006 and various bits of support have been added along the way, but Mesa 7.3 has more of the specification actually implemented. Support for the invariant keyword has been added along with the centroid qualifier and work related to GLSL arrays. There is no support for GLSL 1.30 / OpenGL 3.0 within Mesa 7.3.

The other prominent work that will make up Mesa 7.3 is the Intel DRI driver now supporting Direct Rendering Infrastructure 2 (DRI2) and the Graphics Execution Manager (GEM). The other mainline DRI drivers, however, don't yet support DRI2 or GEM memory management.

While those are the prominent changes in Mesa 7.3 Release Candidate 1, there have been more than 400 commits to the Mesa Git repository since the release of Mesa 7.2. Encompassed by some of this work are also a few ATI Radeon 3D fixes.

At the time of publishing the release announcement for Mesa 7.3 Release Candidate 1 has yet to emerge nor are the source packages yet available from Mesa3D.org, but they should be out there soon. We would suspect that the final release of the Mesa 7.3 development snapshot should be out within a few weeks followed by a stabilized Mesa 7.4 version in time for the Q2'09 Linux distribution updates. Mesa 7.3 will depend upon DRM 2.4.2 or newer.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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