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Intel Implements CMS MSAA For Ivy Bridge Driver

Intel

Published on 07 July 2012 08:29 AM EDT
Written by Michael Larabel in Intel
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.

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 .
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