Intel Implements CMS MSAA For Ivy Bridge Driver
Written by Michael Larabel in Intel on 7 July 2012 at 08:29 AM EDT. 14 Comments
The latest noteworthy patch-set coming out of the Intel Open-Source Technology Center is Mesa support for CMS MSAA for Ivy Bridge hardware.

Back in May was when Intel published MSAA support for Mesa. The multi-sample anti-aliasing support has since been merged, but now Intel's improving the support for the latest-generation Ivy Bridge graphics.

The CMS part of CMS MSAA is short for "Compressed Multi-sample Surface." With the compression support, MSAA rendering is sped up on Ivy Bridge "Gen7" hardware due to decreased memory bandwidth requirements. The CMS layout is supported for all formats except for signed integer, so uncompressed MSAA is still used there.

The eight CMS MSAA patches for Ivy Bridge (there doesn't appear to be CMS support for Sandy Bridge or prior) can be found on the mesa-dev mailing list until being merged to mainline Mesa.

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Michael Larabel is the principal author of 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 automated benchmarking software. He can be followed via Twitter or contacted via

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