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Gallium3D Post-Processing, MLAA Nearly Ready

Mesa

Published on 16 August 2011 10:47 AM EDT
Written by Michael Larabel in Mesa
49 Comments

One of the projects being worked on via X.Org / Mesa with the 2011 Google Summer of Code is morphological anti-aliasing (MLAA) support for Gallium3D / Mesa. Back in July there was MLAA code ready to be tested, but now the student developer behind this code, Lauri Kasanen, has published patches that add the post-processing infrastructure to Gallium3D. The work may soon be ready to be merged to master.

Lauri published the patch-set this morning to the Mesa mailing list that adds post-processing support to all Gallium3D drivers (previously part of this Git branch). Along with adding in the underlying infrastructure, the patch-set adds in three color filters, two versions of MLAA, and a cell-shading filter. These patches are built upon work previously done by Lauri this summer for ROUND support in the Gallium3D drivers, among other work.

In terms of the drivers then supporting morphological anti-aliasing during the post-processing pass, the Softpipe and LLVMpipe drivers are reported to be working fine. The Nouveau and R600g drivers currently have bugs with MLAA while the R300g driver doesn't have the required ROUND support at this time. No other Gallium3D drivers have been tested.

Adding in the post-processing infrastructure and the various filters is spanned across a set of 11 patches. Hopefully the bugs will be worked out soon and they will be in shape to be merged to master, so that this can be marked off as a successful Google Summer of Code project. Hopefully Kasanen sticks around and keeps contributing to 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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