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Fast Color Clears Come To AMD's RadeonSI Gallium3D Driver

AMD

Published on 07 March 2014 02:01 PM EST
Written by Michael Larabel in AMD
25 Comments

Fast color clear support has appeared in patch form for the RadeonSI Gallium3D driver as a move that should further benefit the open-source GPU driver's performance.

Marek Olšák published a set of seven patches to the Mesa mailing list today and one of the patches adds fast color clear support to RadeonSI. The code for fast color clear was ported in part from the R600 Gallium3D driver (where the feature has been present for a while) and works for both multi-sample and single-sample color buffers.

Fast color clears benefit the multi-sample anti-aliasing (MSAA) performance and thus we're excited to see the feature land for this driver that supports the AMD Radeon HD 7000 series GPUs and newer. This patch-set will likely be merged to Git soon with plenty of time ahead of Mesa 10.2.

If you missed it, be sure to checkout our recent R600/RadeonSI Gallium3D tests on Ubuntu 14.04 compared to the Catalyst driver where for some workloads this open-source code is running at ~80%+ the speed of AMD's binary blob.

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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