AMD R300/R400 Radeon Gallium3D Finally Gets MSAA
Written by Michael Larabel in AMD on 27 August 2013 at 09:59 PM EDT. 11 Comments
The AMD Radeon "R300" Gallium3D driver has finally enabled MSAA anti-aliasing support for the very old ATI R300 and R400 class graphics processors.

Marek Olšák, as AMD's newest open-source employee, finally enabled multi-sample anti-aliasing (MSAA) for ATI R300 and R400 GPUs on the R300 Gallium3D driver. The support has been present for a while now but been disabled by default for lack of testing and documentation concerning these old pre-X1000 series GPUs about MSAA support.

Marek's commit message reads:
r300g: enable MSAA on r300-r400, be careful about using color compression

MSAA was tested by one user on RS690 and it works for him with color compression (CMASK) disabled. Our theory is that his chipset lacks CMASK RAM.

Since we don't have hardware documentation about which chipsets actually have CMASK RAM, I had to take a guess based on the presence of HiZ.

About The Author
Author picture

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

Related AMD News
Popular News
Trending Reviews & Featured Articles